/* roulang page: index */
:root{
  --ink:#16362C;
  --ink-deep:#0E241D;
  --ink-soft:#2C5A49;
  --clay:#C2592F;
  --clay-soft:#E08B5F;
  --paper:#F7F3EB;
  --paper-2:#EFE9DE;
  --card:#FFFFFF;
  --line:#E2DACB;
  --line-strong:#CFC5B2;
  --text:#1F2420;
  --text-2:#5C6259;
  --text-3:#8A8F86;
  --ok:#2F7D5B;
  --warn:#B4551F;
  --err:#A83A2B;
  --info:#3F6B77;
  --r-card:14px;
  --r-img:10px;
  --r-btn:10px;
  --r-block:20px;
  --sh-card:0 1px 2px rgba(22,54,44,.06);
  --sh-hover:0 10px 26px -14px rgba(22,54,44,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:180ms;
  --t2:240ms;
  --sans:'Noto Sans SC','Source Han Sans SC','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  --serif:'Noto Serif SC','Songti SC',serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:var(--ink-deep);text-decoration:none;transition:color var(--t) var(--ease);}
a:hover{color:var(--clay);}
button{font-family:inherit;cursor:pointer;}
input,textarea,select{font-family:inherit;font-size:15px;color:var(--text);}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1440px){.container{max-width:1280px;}}
.section{padding:72px 0;}
@media (max-width:1023px){.section{padding:56px 0;}}
@media (max-width:767px){.section{padding:40px 0;} .container{padding:0 16px;}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background var(--t) var(--ease),color var(--t) var(--ease),border-color var(--t) var(--ease),transform var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.btn:active{transform:translateY(1px);}
.btn--primary{background:var(--ink);color:#fff;}
.btn--primary:hover{background:var(--clay);color:#fff;}
.btn--outline{background:#fff;border-color:var(--line-strong);color:var(--ink-deep);}
.btn--outline:hover{border-color:var(--ink);background:var(--paper);color:var(--ink-deep);}
.btn--ghost{background:transparent;border-color:var(--line);color:var(--ink-deep);}
.btn--ghost:hover{border-color:var(--ink);color:var(--ink-deep);}
.btn--sm{height:38px;padding:0 16px;font-size:14px;}
.btn--block{width:100%;}
.textlink{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--ink-deep);
}
.textlink::after{content:"→";transition:transform var(--t) var(--ease);}
.textlink:hover{color:var(--clay);}
.textlink:hover::after{transform:translateX(3px);}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:999px;background:rgba(44,90,73,.1);color:var(--ink-soft);
  font-size:13px;font-weight:600;letter-spacing:.01em;white-space:nowrap;
}
.badge--line{background:transparent;border:1px solid var(--line-strong);color:var(--text-2);}

/* ---------- 头部 ---------- */
.site-header{background:#fff;border-bottom:1px solid var(--line);}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:24px;height:64px;}
.logo{display:flex;align-items:baseline;gap:10px;flex-shrink:0;}
.logo__mark{font-size:22px;font-weight:800;letter-spacing:.14em;color:var(--ink-deep);line-height:1;}
.logo__cn{font-size:15px;font-weight:600;color:var(--text);}
.logo__dot{font-size:13px;color:var(--text-3);letter-spacing:.04em;}
.search{
  display:flex;align-items:center;gap:8px;width:290px;height:38px;
  padding:0 14px;border-radius:999px;background:var(--paper-2);
  border:1px solid transparent;transition:background var(--t) var(--ease),border-color var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.search input{flex:1;border:0;background:transparent;outline:none;font-size:14px;}
.search input::placeholder{color:var(--text-3);}
.search:focus-within{background:#fff;border-color:var(--ink);box-shadow:0 0 0 3px rgba(22,54,44,.1);}
.search svg{flex-shrink:0;color:var(--text-3);}
.topbar__actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.phone-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--ink-deep);}
.phone-link:hover{color:var(--clay);}
.burger{display:none;width:40px;height:40px;align-items:center;justify-content:center;border:1px solid var(--line);background:#fff;border-radius:10px;color:var(--ink-deep);}
.burger:hover{border-color:var(--ink);}

.channelbar{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line);}
.channel-tabs{
  display:flex;align-items:center;gap:4px;height:48px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.channel-tabs::-webkit-scrollbar{display:none;}
.channel-tab{
  position:relative;display:inline-flex;align-items:center;height:34px;padding:0 14px;
  border-radius:999px;font-size:15px;color:var(--text-2);white-space:nowrap;
  transition:color var(--t) var(--ease),background var(--t) var(--ease);
}
.channel-tab:hover{color:var(--ink-deep);}
.channel-tab.is-active{color:var(--ink-deep);font-weight:600;}
.channel-tab.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-7px;height:2px;background:var(--ink);border-radius:2px;
}
@media (max-width:1023px){
  .search{display:none;}
  .phone-link{display:none;}
  .burger{display:inline-flex;}
  .channel-tab.is-active::after{display:none;}
  .channel-tab.is-active{background:var(--ink);color:#fff;}
  .channel-tab.is-active:hover{color:#fff;}
}
@media (max-width:767px){
  .topbar{height:56px;gap:12px;}
  .logo__mark{font-size:19px;}
  .logo__cn{display:none;}
  .logo__dot{font-size:12px;}
  .topbar__actions .btn--primary{height:38px;padding:0 14px;font-size:14px;}
}

/* ---------- 抽屉 ---------- */
.mask{
  position:fixed;inset:0;z-index:110;background:rgba(14,36,29,.45);
  opacity:0;visibility:hidden;transition:opacity var(--t2) var(--ease),visibility var(--t2) var(--ease);
}
.mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:120;width:80%;max-width:340px;
  background:#fff;padding:24px;display:flex;flex-direction:column;gap:24px;
  transform:translateX(100%);transition:transform var(--t2) var(--ease);overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer__head{display:flex;align-items:center;justify-content:space-between;}
.drawer__close{width:36px;height:36px;border:1px solid var(--line);background:#fff;border-radius:10px;font-size:18px;color:var(--ink-deep);line-height:1;}
.drawer__nav{display:flex;flex-direction:column;gap:2px;}
.drawer__nav a{font-size:17px;padding:12px 0;border-bottom:1px solid var(--line);color:var(--text);}
.drawer__nav a.is-active{color:var(--ink-deep);font-weight:700;}
.drawer__foot{margin-top:auto;display:flex;flex-direction:column;gap:12px;padding-top:16px;}
.drawer__foot .phone-link{display:inline-flex;font-size:16px;}
body.is-locked{overflow:hidden;}

/* ---------- Hero ---------- */
.hero{padding:72px 0 64px;}
.hero__grid{display:grid;grid-template-columns:6fr 6fr;gap:48px;align-items:start;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;color:var(--clay);margin-bottom:18px;
}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--clay);}
.hero h1{
  font-family:var(--serif);
  font-size:clamp(28px,4.2vw,44px);
  line-height:1.28;font-weight:700;letter-spacing:.01em;color:var(--ink-deep);
  border-left:4px solid var(--ink);padding-left:18px;margin-bottom:20px;
}
.hero__sub{font-size:17px;line-height:1.8;color:var(--text-2);max-width:34em;margin-bottom:28px;}
.hero__actions{display:flex;flex-wrap:wrap;gap:12px;}
.hero__stats{display:flex;margin-top:36px;padding-top:22px;border-top:1px solid var(--line);}
.stat{flex:1;min-width:0;}
.stat + .stat{border-left:1px solid var(--line);padding-left:18px;}
.stat:not(:last-child){padding-right:14px;}
.stat__num{font-family:var(--serif);font-size:22px;font-weight:700;color:var(--ink-deep);font-variant-numeric:tabular-nums;line-height:1.4;}
.stat__label{font-size:13px;color:var(--text-3);line-height:1.6;}
.hero__media{position:relative;border-radius:var(--r-block);overflow:hidden;box-shadow:0 18px 40px -28px rgba(22,54,44,.5);margin-top:16px;}
.hero__media img{width:100%;height:100%;aspect-ratio:16/10;object-fit:cover;}
.hero__media::after{content:"";position:absolute;inset:0;background:var(--ink);opacity:.08;pointer-events:none;}
.hero__stamp{
  position:absolute;right:18px;bottom:12px;z-index:2;
  font-size:36px;font-weight:800;letter-spacing:.14em;color:#fff;opacity:.22;line-height:1;
}
.hero__tag{
  position:absolute;left:18px;top:18px;z-index:2;
  background:rgba(255,255,255,.94);color:var(--ink-deep);
  font-size:13px;font-weight:600;padding:6px 12px;border-radius:999px;
}
@media (max-width:1023px){
  .hero__grid{grid-template-columns:1fr;gap:32px;}
  .hero__media{margin-top:0;}
}
@media (max-width:767px){
  .hero{padding:40px 0 32px;}
  .hero__stats{flex-wrap:wrap;gap:16px 0;}
  .stat{flex:1 1 33%;}
  .stat + .stat{padding-left:14px;}
}

/* ---------- 痛点 ---------- */
.pain{background:var(--paper-2);}
.pain-list{display:grid;grid-template-columns:repeat(2,1fr);gap:0 56px;margin-top:8px;}
.pain-item{display:flex;gap:16px;padding:22px 0;border-top:1px dashed var(--line-strong);}
.pain-item__no{font-family:var(--serif);font-size:15px;font-weight:700;color:var(--clay);line-height:1.9;flex-shrink:0;}
.pain-item__title{font-size:17px;font-weight:600;color:var(--text);margin-bottom:6px;line-height:1.6;}
.pain-item__desc{font-size:14px;color:var(--text-2);line-height:1.75;}
@media (max-width:767px){.pain-list{grid-template-columns:1fr;gap:0;}}

/* ---------- 板块标题 ---------- */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap;}
.h2{
  position:relative;padding-left:14px;
  font-size:clamp(22px,2.6vw,30px);line-height:1.35;font-weight:700;color:var(--text);
}
.h2::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;border-radius:2px;background:var(--ink);}
.section-sub{font-size:15px;color:var(--text-2);max-width:46em;margin-top:12px;line-height:1.8;}

/* ---------- 解决方案 ---------- */
.sol-row{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center;padding-bottom:56px;}
.sol-row--rev{grid-template-columns:7fr 5fr;}
.sol-row + .sol-row{padding-top:56px;border-top:1px solid var(--line);}
.sol-media{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);}
.sol-media img{width:100%;aspect-ratio:3/2;object-fit:cover;transition:transform var(--t2) var(--ease);}
.sol-media:hover img{transform:scale(1.03);}
.sol-body h3{font-size:19px;font-weight:600;line-height:1.5;margin-bottom:14px;color:var(--text);}
.sol-body p{font-size:15.5px;color:var(--text-2);line-height:1.85;margin-bottom:12px;}
.sol-points{margin:18px 0 22px;display:flex;flex-direction:column;gap:10px;}
.sol-points li{position:relative;padding-left:18px;font-size:15px;color:var(--text);line-height:1.75;}
.sol-points li::before{content:"";position:absolute;left:0;top:.66em;width:6px;height:6px;border-radius:50%;background:var(--ink-soft);}
@media (max-width:1023px){
  .sol-row,.sol-row--rev{grid-template-columns:1fr;gap:24px;padding-bottom:40px;}
  .sol-row + .sol-row{padding-top:40px;}
}

/* ---------- 成果数据 ---------- */
.results{background:var(--ink-deep);color:#fff;padding:64px 0;}
.results .h2{color:#fff;}
.results .h2::before{background:var(--clay-soft);}
.results .section-sub{color:rgba(255,255,255,.7);}
.result-grid{display:grid;grid-template-columns:repeat(4,1fr);margin-top:36px;}
.result{padding:0 24px;}
.result:first-child{padding-left:0;}
.result + .result{border-left:1px solid rgba(255,255,255,.14);}
.result__num{font-family:var(--serif);font-size:clamp(32px,4vw,48px);font-weight:700;line-height:1.2;font-variant-numeric:tabular-nums;color:#fff;}
.result__unit{font-size:15px;font-weight:500;color:rgba(255,255,255,.7);margin-left:6px;}
.result__label{font-size:14px;color:rgba(255,255,255,.72);margin-top:8px;line-height:1.7;}
@media (max-width:767px){
  .results{padding:40px 0;}
  .result-grid{grid-template-columns:repeat(2,1fr);gap:28px 0;}
  .result{padding:0 16px;}
  .result:nth-child(odd){padding-left:0;}
  .result:nth-child(3){border-left:0;}
}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);transition:transform var(--t2) var(--ease),box-shadow var(--t2) var(--ease),border-color var(--t2) var(--ease);
  overflow:hidden;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:var(--line-strong);}
.news-card__inner{display:flex;flex-direction:column;height:100%;padding:24px;color:inherit;}
.news-card__cover{
  position:relative;border-radius:var(--r-img);overflow:hidden;margin-bottom:16px;
  background:var(--paper-2);border:1px dashed var(--line-strong);aspect-ratio:16/9;
}
.news-card__cover::after{
  content:"XKTY";position:absolute;right:12px;bottom:4px;
  font-size:26px;font-weight:800;letter-spacing:.14em;color:var(--ink);opacity:.1;line-height:1;
}
.news-card__title{font-size:18px;line-height:1.5;font-weight:600;color:var(--text);margin:12px 0 8px;transition:color var(--t) var(--ease);}
.news-card:hover .news-card__title{color:var(--ink-soft);}
.news-card__excerpt{font-size:14.5px;line-height:1.75;color:var(--text-2);flex:1;margin-bottom:16px;}
.news-card__main{display:flex;flex-direction:column;flex:1;}
.news-card__foot{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:14px;border-top:1px solid var(--line);}
.news-card__time{font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;}
.news-card.is-lead{grid-column:span 2;}
.news-card.is-lead .news-card__inner{flex-direction:row;gap:24px;}
.news-card.is-lead .news-card__cover{flex:0 0 42%;margin-bottom:0;aspect-ratio:4/3;align-self:stretch;height:auto;}
.news-card.is-lead .news-card__title{font-size:20px;}
@media (max-width:1023px){
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .news-card.is-lead{grid-column:span 2;}
}
@media (max-width:767px){
  .news-grid{grid-template-columns:1fr;}
  .news-card.is-lead{grid-column:span 1;}
  .news-card.is-lead .news-card__inner{flex-direction:column;gap:0;}
  .news-card.is-lead .news-card__cover{flex:none;margin-bottom:16px;aspect-ratio:16/9;}
  .news-card__inner{padding:18px;}
}
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  min-height:200px;padding:32px;border-radius:var(--r-card);
  background:var(--paper-2);border:1px dashed var(--line-strong);text-align:center;
}
.empty-state__icon{color:var(--ink-soft);opacity:.6;}
.empty-state__title{font-size:16px;font-weight:600;color:var(--text);}
.empty-state__desc{font-size:14px;color:var(--text-3);}

/* ---------- 证言 ---------- */
.quotes{background:var(--paper-2);}
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;margin-top:8px;}
.quote{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh-card);
}
.quote:nth-child(2){margin-top:16px;}
.quote__text{font-family:var(--serif);font-size:17px;line-height:1.9;color:var(--ink-deep);margin-bottom:18px;}
.quote__who{display:flex;flex-direction:column;gap:2px;padding-top:14px;border-top:1px solid var(--line);}
.quote__name{font-size:14px;font-weight:600;color:var(--text);}
.quote__role{font-size:13px;color:var(--text-3);}
@media (max-width:1023px){
  .quote-grid{grid-template-columns:1fr;gap:16px;}
  .quote:nth-child(2){margin-top:0;}
}
@media (max-width:767px){
  .quote-grid{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:16px;padding-bottom:6px;}
  .quote{flex:0 0 84%;scroll-snap-align:start;}
}

/* ---------- FAQ ---------- */
.faq{border-top:2px solid var(--ink);margin-top:8px;}
.faq__item{border-bottom:1px solid var(--line);}
.faq__item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:20px 44px 20px 36px;font-size:17px;font-weight:600;color:var(--text);
  transition:color var(--t) var(--ease);
}
.faq__item summary::-webkit-details-marker{display:none;}
.faq__item summary:hover{color:var(--ink-soft);}
.faq__item summary::before{
  content:"+";position:absolute;left:0;top:19px;font-size:20px;font-weight:400;
  color:var(--clay);line-height:1;width:20px;text-align:center;
}
.faq__item[open] summary::before{content:"−";}
.faq__item[open] summary{color:var(--ink-deep);}
.faq__body{padding:0 44px 22px 36px;font-size:15px;line-height:1.85;color:var(--text-2);}
@media (max-width:767px){
  .faq__item summary{font-size:16px;padding:16px 32px 16px 30px;}
  .faq__body{padding:0 12px 18px 30px;}
}

/* ---------- CTA 表单 ---------- */
.cta-wrap{background:var(--paper-2);border-radius:var(--r-block);padding:48px;}
.cta-grid{display:grid;grid-template-columns:6fr 6fr;gap:48px;align-items:start;}
.cta-left h2{font-size:clamp(22px,2.6vw,30px);line-height:1.35;font-weight:700;color:var(--ink-deep);margin-bottom:14px;}
.cta-left p{font-size:15.5px;color:var(--text-2);line-height:1.85;margin-bottom:20px;}
.cta-list{display:flex;flex-direction:column;gap:10px;}
.cta-list li{position:relative;padding-left:26px;font-size:15px;color:var(--text);line-height:1.75;}
.cta-list li::before{
  content:"";position:absolute;left:0;top:.62em;width:14px;height:8px;
  border-left:2px solid var(--ok);border-bottom:2px solid var(--ok);transform:rotate(-45deg);
}
.form{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:28px;display:flex;flex-direction:column;gap:16px;}
.field{display:flex;flex-direction:column;gap:6px;}
.field label{font-size:14px;font-weight:600;color:var(--text);}
.field input,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--r-btn);
  padding:12px 14px;background:#fff;
  transition:border-color var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.field input{height:46px;}
.field textarea{min-height:104px;resize:vertical;line-height:1.7;}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 2px rgba(22,54,44,.14);}
.field__hint{font-size:13px;color:var(--text-3);line-height:1.6;}
.field__error{font-size:13px;color:var(--err);display:none;}
.form__note{font-size:13px;color:var(--text-3);line-height:1.7;}
@media (max-width:1023px){
  .cta-wrap{padding:32px;}
  .cta-grid{grid-template-columns:1fr;gap:28px;}
}
@media (max-width:767px){
  .cta-wrap{padding:24px 18px;}
  .form{padding:20px;}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-deep);color:rgba(255,255,255,.72);padding:56px 0 0;margin-top:72px;}
.footer-grid{display:grid;grid-template-columns:5fr 2.4fr 2.4fr 2.6fr;gap:40px;padding-bottom:40px;}
.footer-brand .logo__mark{color:#fff;}
.footer-brand .logo__cn{color:rgba(255,255,255,.9);}
.footer-brand .logo__dot{color:rgba(255,255,255,.5);}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);margin:16px 0 18px;max-width:32em;}
.footer-contact{font-size:14px;line-height:1.9;color:rgba(255,255,255,.8);}
.footer-contact a{color:rgba(255,255,255,.9);}
.footer-contact a:hover{color:#fff;text-decoration:underline;}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-col a:hover{color:#fff;text-decoration:underline;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0 28px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.7);}
.footer-bottom a:hover{color:#fff;}
@media (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-brand{grid-column:span 2;}
}
@media (max-width:767px){
  .site-footer{padding-top:36px;margin-top:40px;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .footer-brand{grid-column:span 1;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
  .news-card:hover{transform:none;}
  .sol-media:hover img{transform:none;}
}

/* roulang page: article */
:root{
  --ink:#16362C;
  --ink-deep:#0E241D;
  --ink-soft:#2C5A49;
  --clay:#C2592F;
  --clay-soft:#E08B5F;
  --paper:#F7F3EB;
  --paper-2:#EFE9DE;
  --card:#FFFFFF;
  --line:#E2DACB;
  --line-strong:#CFC5B2;
  --text:#1F2420;
  --text-2:#5C6259;
  --text-3:#8A8F86;
  --ok:#2F7D5B;
  --warn:#B4551F;
  --err:#A83A2B;
  --info:#3F6B77;
  --r-card:14px;
  --r-img:10px;
  --r-btn:10px;
  --r-pill:999px;
  --r-big:20px;
  --sh-1:0 1px 2px rgba(22,54,44,.06);
  --sh-2:0 10px 26px -14px rgba(22,54,44,.28);
  --t:180ms cubic-bezier(.2,.7,.3,1);
  --t2:240ms cubic-bezier(.2,.7,.3,1);
  --font:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --serif:"Noto Serif SC","Songti SC",serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --container:1200px;
  --pad:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5,p,figure,blockquote,dl,dd{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:var(--ink-deep);text-decoration:none;transition:color var(--t),opacity var(--t)}
a:hover{color:var(--clay)}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea,select{font-family:inherit;font-size:inherit;color:inherit}
strong{font-weight:700;color:var(--ink-deep)}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:4px}
::selection{background:rgba(194,89,47,.18)}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 var(--pad);
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 20px;
  border-radius:var(--r-btn);
  font-weight:600;
  font-size:15px;
  line-height:1;
  white-space:nowrap;
  border:1px solid transparent;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn:active{transform:translateY(1px)}
.btn--primary{background:var(--ink);color:#fff;box-shadow:var(--sh-1)}
.btn--primary:hover{background:var(--clay);color:#fff}
.btn--outline{background:#fff;color:var(--ink);border-color:var(--line-strong)}
.btn--outline:hover{border-color:var(--ink);color:var(--ink);background:var(--paper)}
.btn--ghost{background:transparent;color:var(--ink-soft);border-color:var(--line)}
.btn--ghost:hover{color:var(--ink);border-color:var(--ink);background:#fff}
.btn--sm{height:38px;padding:0 16px;font-size:14px}
.btn--xs{height:32px;padding:0 12px;font-size:13px;border-radius:8px}
.btn--block{width:100%}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-weight:600;
  font-size:14.5px;
  color:var(--ink);
}
.link-arrow span{transition:transform var(--t)}
.link-arrow:hover span{transform:translateX(3px)}
.link-arrow:hover{color:var(--clay)}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:var(--r-pill);
  font-size:13px;
  font-weight:600;
  letter-spacing:.02em;
  background:var(--paper-2);
  color:var(--ink-soft);
  border:1px solid transparent;
}
.badge--onDark{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.22)}
.badge--outline{background:transparent;border-color:var(--line-strong);color:var(--text-2)}

/* ---------- 品牌栏 ---------- */
.site-header{position:relative;z-index:60;background:#fff}
.brandbar{background:#fff;border-bottom:1px solid var(--line)}
.brandbar__inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:64px;
}
.logo{
  display:inline-flex;
  align-items:baseline;
  gap:10px;
  flex:0 0 auto;
}
.logo__mark{
  font-size:20px;
  font-weight:800;
  letter-spacing:.14em;
  color:var(--ink-deep);
  font-variant-numeric:tabular-nums;
}
.logo__cn{
  font-size:14px;
  font-weight:600;
  color:var(--ink-soft);
  letter-spacing:.06em;
}
.logo__dot{
  font-size:13px;
  color:var(--text-3);
  letter-spacing:.08em;
}
.logo:hover .logo__mark{color:var(--clay)}
.search{
  display:flex;
  align-items:center;
  gap:8px;
  width:300px;
  height:40px;
  padding:0 14px;
  border-radius:var(--r-pill);
  background:var(--paper-2);
  border:1px solid transparent;
  transition:background var(--t),border-color var(--t),box-shadow var(--t);
  margin-left:auto;
}
.search:focus-within{background:#fff;border-color:var(--ink);box-shadow:0 0 0 3px rgba(22,54,44,.10)}
.search svg{flex:0 0 auto;color:var(--text-3)}
.search input{
  flex:1 1 auto;
  min-width:0;
  border:0;
  background:transparent;
  outline:none;
  font-size:14px;
  line-height:1.6;
}
.search input::placeholder{color:var(--text-3)}
.brandbar__actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;
  width:40px;height:40px;
  border-radius:10px;
  border:1px solid var(--line);
  align-items:center;justify-content:center;
  color:var(--ink);
  background:#fff;
}
.nav-toggle:hover{border-color:var(--ink)}

/* ---------- 频道栏 ---------- */
.channelbar{
  position:sticky;
  top:0;
  z-index:70;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 0 rgba(22,54,44,.03);
}
.channel-tabs{
  display:flex;
  align-items:center;
  gap:2px;
  height:48px;
  overflow-x:auto;
  scrollbar-width:none;
}
.channel-tabs::-webkit-scrollbar{display:none}
.channel-tab{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:48px;
  padding:0 14px;
  font-size:14.5px;
  font-weight:600;
  color:var(--text-2);
  white-space:nowrap;
  transition:color var(--t);
}
.channel-tab::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:0;
  height:2px;
  background:var(--ink);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--t2);
}
.channel-tab:hover{color:var(--ink)}
.channel-tab:hover::after{transform:scaleX(.6)}
.channel-tab.is-active{color:var(--ink-deep)}
.channel-tab.is-active::after{transform:scaleX(1)}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;
  background:rgba(14,36,29,.45);
  opacity:0;visibility:hidden;
  transition:opacity var(--t2),visibility var(--t2);
  z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;
  top:0;right:0;bottom:0;
  width:80%;
  max-width:340px;
  background:#fff;
  z-index:100;
  transform:translateX(100%);
  transition:transform var(--t2);
  display:flex;
  flex-direction:column;
  padding:20px 20px 24px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer__close{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--ink);
}
.drawer__list{display:flex;flex-direction:column;gap:2px;margin-bottom:24px}
.drawer__list a{
  display:block;
  padding:12px 4px;
  font-size:17px;
  font-weight:600;
  color:var(--ink-deep);
  border-bottom:1px solid var(--line);
}
.drawer__list a:hover{color:var(--clay)}
.drawer__foot{margin-top:auto;display:flex;flex-direction:column;gap:10px}
.drawer__tel{font-size:15px;color:var(--text-2)}
.drawer__tel a{font-weight:700;color:var(--ink-deep)}

/* ---------- 文章首屏 ---------- */
.article-hero{
  position:relative;
  background:var(--ink-deep);
  color:#fff;
  overflow:hidden;
}
.article-hero__bg{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
  opacity:.34;
}
.article-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(105deg,rgba(14,36,29,.94) 0%,rgba(14,36,29,.82) 52%,rgba(22,54,44,.62) 100%);
}
.article-hero__inner{
  position:relative;
  z-index:2;
  padding:34px 0 52px;
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.62);
  margin-bottom:26px;
}
.breadcrumb a{color:rgba(255,255,255,.72)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{color:rgba(255,255,255,.34)}
.breadcrumb .current{color:var(--clay-soft);font-weight:600;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-hero h1{
  font-family:var(--serif);
  font-size:clamp(26px,4vw,42px);
  line-height:1.3;
  font-weight:700;
  letter-spacing:.01em;
  max-width:880px;
  margin-top:16px;
  color:#fff;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 18px;
  margin-top:22px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.16);
  font-size:13px;
  color:rgba(255,255,255,.7);
  font-variant-numeric:tabular-nums;
}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.32)}

/* ---------- 主体网格 ---------- */
.article-main{padding:56px 0 72px}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:48px;
  align-items:start;
}
.article-col{min-width:0}
.article-panel{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-big);
  box-shadow:var(--sh-1);
  padding:40px 44px 44px;
}
.article-body{max-width:720px;font-size:16.5px;line-height:1.9;color:var(--text)}
.article-body > * + *{margin-top:1.15em}
.article-body p{margin:1.15em 0 0}
.article-body h2{
  font-size:clamp(20px,2.4vw,25px);
  line-height:1.45;
  font-weight:700;
  color:var(--ink-deep);
  margin:40px 0 16px;
  padding-left:14px;
  border-left:3px solid var(--ink);
  letter-spacing:.01em;
}
.article-body h3{
  font-size:19px;
  line-height:1.5;
  font-weight:600;
  color:var(--ink-deep);
  margin:28px 0 10px;
}
.article-body h4{
  font-size:15px;
  font-weight:600;
  color:var(--ink-soft);
  letter-spacing:.04em;
  margin:22px 0 8px;
}
.article-body ul,.article-body ol{padding-left:1.4em;margin:1.15em 0 0}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:.4em 0;line-height:1.9}
.article-body li::marker{color:var(--ink-soft)}
.article-body a{color:var(--ink-deep);font-weight:600;border-bottom:1px solid var(--line-strong)}
.article-body a:hover{color:var(--clay);border-bottom-color:var(--clay)}
.article-body img{border-radius:12px;margin:26px 0;border:1px solid var(--line)}
.article-body figure{margin:26px 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--text-3);margin-top:10px}
.article-body blockquote{
  margin:26px 0;
  padding:20px 22px;
  background:var(--paper-2);
  border-left:3px solid var(--ink);
  border-radius:0 12px 12px 0;
  color:var(--text-2);
  font-size:16px;
}
.article-body blockquote p{margin:0}
.article-body blockquote p + p{margin-top:.9em}
.article-body table{
  width:100%;
  border-collapse:collapse;
  font-size:15px;
  margin:26px 0;
  border:1px solid var(--line);
  border-radius:12px;
  overflow:hidden;
}
.article-body th,.article-body td{
  border:1px solid var(--line);
  padding:11px 14px;
  text-align:left;
  vertical-align:top;
  line-height:1.7;
}
.article-body th{background:var(--paper-2);font-weight:600;color:var(--ink-deep)}
.article-body tbody tr:nth-child(even){background:#FBF8F2}
.article-body code{
  font-family:var(--mono);
  font-size:.9em;
  background:var(--paper-2);
  border-radius:6px;
  padding:2px 6px;
  color:var(--ink-deep);
}
.article-body pre{
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:12px;
  padding:18px;
  overflow-x:auto;
  font-size:14px;
  line-height:1.75;
}
.article-body pre code{background:none;padding:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:34px 0}

/* 空态 */
.empty-state{
  max-width:720px;
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:48px 32px;
  text-align:center;
}
.empty-state svg{color:var(--ink-soft);margin:0 auto 16px}
.empty-state h2{font-size:20px;font-weight:700;color:var(--ink-deep);margin-bottom:8px}
.empty-state p{font-size:14.5px;color:var(--text-2);margin-bottom:20px}

/* ---------- 文末模块 ---------- */
.article-foot{max-width:720px;margin-top:34px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.tag-row .label{font-size:13px;color:var(--text-3);margin-right:4px}
.tag{
  display:inline-flex;align-items:center;
  height:30px;padding:0 14px;
  border-radius:var(--r-pill);
  background:#fff;
  border:1px solid var(--line);
  font-size:13px;
  color:var(--text-2);
  transition:border-color var(--t),color var(--t),background var(--t);
}
.tag:hover{border-color:var(--ink);color:var(--ink);background:var(--paper)}

.read-next{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:20px;
  margin-top:30px;
}
.read-next a{
  display:flex;
  flex-direction:column;
  gap:8px;
  padding:22px 24px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.read-next a:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--line-strong)}
.read-next .kicker{font-size:12.5px;color:var(--text-3);letter-spacing:.08em}
.read-next .ttl{
  font-size:16.5px;font-weight:600;line-height:1.55;color:var(--ink-deep);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.read-next a:hover .ttl{color:var(--clay)}

.foot-actions{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;
  margin-top:30px;padding-top:28px;border-top:1px solid var(--line);
}

/* ---------- 侧栏 ---------- */
.sidebar{display:flex;flex-direction:column;gap:24px;position:sticky;top:96px}
.side-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:22px 22px 24px;
}
.side-card__title{
  position:relative;
  font-size:15px;
  font-weight:600;
  color:var(--ink-deep);
  padding-left:12px;
  margin-bottom:16px;
}
.side-card__title::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  transform:translateY(-50%);
  width:3px;height:15px;
  background:var(--ink);
  border-radius:2px;
}
.rank-list li{border-bottom:1px dashed var(--line)}
.rank-list li:last-child{border-bottom:0}
.rank-list a{
  display:flex;
  gap:10px;
  padding:11px 0;
  font-size:14.5px;
  line-height:1.6;
  color:var(--text);
}
.rank-list a:hover{color:var(--clay)}
.rank-list .num{
  flex:0 0 auto;
  font-family:var(--serif);
  font-size:14px;
  font-weight:700;
  color:var(--clay);
  font-variant-numeric:tabular-nums;
  line-height:1.7;
}
.rank-list .txt{flex:1 1 auto;min-width:0}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag-cloud a{
  display:inline-flex;align-items:center;
  height:28px;padding:0 12px;
  border-radius:var(--r-pill);
  background:var(--paper);
  border:1px solid var(--line);
  font-size:13px;color:var(--text-2);
}
.tag-cloud a:hover{background:var(--ink);border-color:var(--ink);color:#fff}

.side-contact{
  background:var(--ink-deep);
  border:0;
  color:#fff;
  box-shadow:0 12px 30px -18px rgba(14,36,29,.7);
}
.side-contact .side-card__title{color:#fff}
.side-contact .side-card__title::before{background:var(--clay-soft)}
.side-contact p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);margin-bottom:16px}
.side-contact .tel{
  display:block;
  font-family:var(--serif);
  font-size:22px;
  font-weight:700;
  color:#fff;
  letter-spacing:.02em;
  font-variant-numeric:tabular-nums;
  margin-bottom:6px;
}
.side-contact .tel:hover{color:var(--clay-soft)}
.side-contact .hours{font-size:13px;color:rgba(255,255,255,.55);margin-bottom:18px}
.side-contact .btn--primary{background:#fff;color:var(--ink-deep)}
.side-contact .btn--primary:hover{background:var(--clay);color:#fff}

.side-form{display:flex;flex-direction:column;gap:10px}
.side-form label{font-size:13px;font-weight:600;color:var(--text-2)}
.side-form input{
  height:42px;
  padding:0 12px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:#fff;
  font-size:14px;
  outline:none;
  transition:border-color var(--t),box-shadow var(--t);
}
.side-form input:focus{border-color:var(--ink);box-shadow:0 0 0 3px rgba(22,54,44,.10)}
.side-form .hint{font-size:12.5px;color:var(--text-3);line-height:1.7}

/* ---------- 底部 CTA ---------- */
.consult-band{background:var(--paper-2);padding:64px 0 72px}
.consult-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-big);
  box-shadow:var(--sh-1);
  padding:44px;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:center;
}
.consult-card h2{
  font-size:clamp(22px,2.6vw,30px);
  line-height:1.4;
  font-weight:700;
  color:var(--ink-deep);
  margin-bottom:12px;
}
.consult-card .lead{font-size:15px;color:var(--text-2);line-height:1.85;margin-bottom:20px}
.consult-points{display:flex;flex-direction:column;gap:10px}
.consult-points li{display:flex;gap:10px;font-size:14.5px;color:var(--text-2);line-height:1.75}
.consult-points svg{flex:0 0 auto;margin-top:4px;color:var(--ok)}
.consult-form{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:6px;min-width:0}
.field--full{grid-column:1 / -1}
.field label{font-size:14px;font-weight:600;color:var(--text-2)}
.field input,.field textarea{
  width:100%;
  height:46px;
  padding:0 14px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:#fff;
  font-size:15px;
  outline:none;
  transition:border-color var(--t),box-shadow var(--t);
}
.field textarea{height:96px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input:focus,.field textarea:focus{border-color:var(--ink);box-shadow:0 0 0 3px rgba(22,54,44,.10)}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field .tip{font-size:12.5px;color:var(--text-3);line-height:1.6}
.consult-form .btn{height:46px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-deep);color:rgba(255,255,255,.72);padding:56px 0 26px}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:38px;
  border-bottom:1px solid rgba(255,255,255,.14);
}
.footer-brand .logo{margin-bottom:16px}
.footer-brand .logo__mark{color:#fff}
.footer-brand .logo__cn{color:rgba(255,255,255,.72)}
.footer-brand .logo__dot{color:rgba(255,255,255,.45)}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:400px;margin-bottom:18px}
.footer-contact{font-size:13.5px;line-height:2;color:rgba(255,255,255,.6)}
.footer-contact a{color:rgba(255,255,255,.86)}
.footer-contact a:hover{color:var(--clay-soft)}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72)}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  padding-top:22px;
  font-size:13px;
  color:rgba(255,255,255,.5);
  font-variant-numeric:tabular-nums;
}

/* ---------- 响应式 ---------- */
@media (min-width:1440px){
  :root{--container:1280px}
}
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:36px}
  .article-panel{padding:34px 32px 36px}
  .consult-card{padding:36px;gap:36px}
}
@media (max-width:1023px){
  .search{width:220px}
  .article-layout{grid-template-columns:1fr;gap:32px}
  .sidebar{position:static;top:auto;display:grid;grid-template-columns:1fr 1fr;gap:20px}
  .sidebar .side-card--wide{grid-column:1 / -1}
  .consult-card{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:860px){
  .search{display:none}
  .nav-toggle{display:inline-flex}
  .brandbar__actions .btn--ghost{display:none}
}
@media (max-width:767px){
  :root{--pad:16px}
  .brandbar__inner{height:56px;gap:12px}
  .logo__mark{font-size:18px}
  .logo__cn{display:none}
  .logo__dot{display:none}
  .article-hero__inner{padding:24px 0 40px}
  .breadcrumb{margin-bottom:18px;font-size:12.5px}
  .article-meta{gap:8px 14px;margin-top:18px;padding-top:16px}
  .article-main{padding:32px 0 48px}
  .article-panel{padding:22px 18px 26px;border-radius:var(--r-card)}
  .article-body{font-size:16px;line-height:1.88}
  .article-body h2{margin-top:32px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .read-next{grid-template-columns:1fr;gap:14px}
  .sidebar{grid-template-columns:1fr}
  .consult-band{padding:40px 0 48px}
  .consult-card{padding:24px 18px}
  .consult-form{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:26px}
  .footer-bottom{flex-direction:column;gap:6px}
  .channel-tab{height:44px;padding:0 12px;font-size:14px}
  .channel-tabs{height:44px}
  .channel-tab.is-active{
    background:var(--ink);
    color:#fff;
    border-radius:var(--r-pill);
    height:32px;
    margin:auto 0;
  }
  .channel-tab.is-active::after{display:none}
  .channel-tab.is-active:hover{color:#fff}
}
@media (max-width:520px){
  .article-hero h1{font-size:24px}
  .btn{height:42px;font-size:14.5px;padding:0 16px}
  .brandbar__actions{gap:8px}
  .brandbar__actions .btn--primary{padding:0 14px;font-size:14px}
  .article-meta{font-size:12.5px}
  .empty-state{padding:32px 20px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
  .read-next a:hover{transform:none}
}

/* roulang page: category1 */
:root{
  --ink:#16362C;
  --ink-deep:#0E241D;
  --ink-light:#2C5A49;
  --clay:#C2592F;
  --clay-light:#E08B5F;
  --paper:#F7F3EB;
  --paper-2:#EFE9DE;
  --card:#FFFFFF;
  --line:#E2DACB;
  --line-strong:#CFC5B2;
  --text:#1F2420;
  --text-2:#5C6259;
  --text-3:#8A8F86;
  --ok:#2F7D5B;
  --warn:#B4551F;
  --err:#A83A2B;
  --info:#3F6B77;
  --r-card:14px;
  --r-btn:10px;
  --r-lg:20px;
  --shadow-1:0 1px 2px rgba(22,54,44,.06);
  --shadow-2:0 10px 26px -14px rgba(22,54,44,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sans:'Noto Sans SC','Source Han Sans SC','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  --serif:'Noto Serif SC','Songti SC',Georgia,serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block}
a{color:var(--ink-deep);text-decoration:none;transition:color 180ms var(--ease)}
a:hover{color:var(--clay)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1280px}}

/* ---------- 品牌行 ---------- */
.site-header{background:#fff;border-bottom:1px solid var(--line)}
.brand-row{display:flex;align-items:center;gap:24px;height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo__mark{font-size:19px;font-weight:700;letter-spacing:.14em;color:var(--ink);text-transform:uppercase;line-height:1}
.logo__cn{font-size:15px;font-weight:600;color:var(--ink);padding-left:10px;border-left:1px solid var(--line-strong);line-height:1.1}
.logo__dot{font-size:13px;color:var(--text-3);letter-spacing:.08em;line-height:1}
.logo:hover .logo__mark{color:var(--clay)}
.search{
  flex:1 1 auto;max-width:320px;height:40px;display:flex;align-items:center;gap:8px;
  background:var(--paper-2);border:1px solid transparent;border-radius:999px;padding:0 14px;
  transition:background 180ms var(--ease),border-color 180ms var(--ease)
}
.search:focus-within{background:#fff;border-color:var(--ink);box-shadow:0 0 0 3px rgba(22,54,44,.08)}
.search svg{width:16px;height:16px;flex:0 0 auto;color:var(--text-3)}
.search input{
  border:0;background:transparent;outline:none;font-size:14px;color:var(--text);
  width:100%;font-family:inherit;line-height:1.6
}
.search input::placeholder{color:var(--text-3)}
.brand-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;font-family:inherit;cursor:pointer;white-space:nowrap;
  transition:background 180ms var(--ease),color 180ms var(--ease),border-color 180ms var(--ease),transform 180ms var(--ease),box-shadow 180ms var(--ease)
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--ink);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:var(--clay);color:#fff}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line-strong)}
.btn-ghost:hover{border-color:var(--ink);color:var(--ink-deep);background:#fff}
.btn-outline{background:#fff;color:var(--ink);border-color:var(--ink)}
.btn-outline:hover{background:var(--ink);color:#fff}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--ink)}
.link-arrow svg{width:16px;height:16px;transition:transform 180ms var(--ease)}
.link-arrow:hover svg{transform:translateX(3px)}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line-strong);background:#fff;
  border-radius:var(--r-btn);cursor:pointer;align-items:center;justify-content:center;color:var(--ink)
}
.nav-toggle:hover{border-color:var(--ink)}

/* ---------- 频道行 ---------- */
.channelbar{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line)}
.channel-tabs{display:flex;align-items:center;gap:4px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.channel-tabs::-webkit-scrollbar{display:none}
.channel-tab{
  position:relative;display:inline-flex;align-items:center;height:48px;padding:0 14px;
  font-size:14.5px;color:var(--text-2);white-space:nowrap;font-weight:500;
  transition:color 180ms var(--ease)
}
.channel-tab:hover{color:var(--ink)}
.channel-tab:hover::after{content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;background:rgba(22,54,44,.35);border-radius:2px}
.channel-tab.is-active{color:var(--ink-deep);font-weight:600}
.channel-tab.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;background:var(--ink);border-radius:2px}

/* ---------- 通用板块 ---------- */
.section{padding:72px 0}
.section--paper{background:var(--paper-2)}
.section-head{max-width:760px;margin-bottom:28px}
.section-head h2{
  position:relative;font-size:clamp(22px,2.6vw,30px);line-height:1.35;font-weight:700;color:var(--ink-deep);
  padding-left:14px
}
.section-head h2::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;background:var(--ink);border-radius:2px}
.section-head p{margin-top:14px;font-size:15.5px;line-height:1.85;color:var(--text-2)}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--ink-light);font-weight:600;margin-bottom:14px
}

/* ---------- Hero ---------- */
.hero{position:relative;padding:56px 0 0;overflow:hidden}
.hero::after{
  content:"";position:absolute;right:-40px;top:24px;width:190px;height:190px;border-radius:50%;
  border:1px solid var(--ink);opacity:.12;pointer-events:none
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;position:relative;z-index:1}
.hero h1{
  font-family:var(--serif);font-size:clamp(28px,4.2vw,44px);line-height:1.28;font-weight:700;
  letter-spacing:.01em;color:var(--ink-deep);max-width:16em
}
.hero-sub{margin-top:18px;font-size:16.5px;line-height:1.85;color:var(--text-2);max-width:32em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-visual{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-2)}
.hero-visual img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11}
.hero-visual::after{
  content:"XKTY";position:absolute;right:14px;bottom:10px;font-size:12px;letter-spacing:.24em;
  color:#fff;opacity:.72
}
.hero-visual__tag{
  position:absolute;left:14px;top:14px;background:rgba(255,255,255,.92);color:var(--ink-deep);
  font-size:12.5px;font-weight:600;padding:5px 12px;border-radius:999px;letter-spacing:.02em
}
.statbar{
  display:grid;grid-template-columns:repeat(4,1fr);
  margin-top:52px;border-top:1px solid var(--line-strong);padding-bottom:40px
}
.stat{padding:22px 24px 0;border-left:1px solid var(--line)}
.stat:first-child{border-left:0;padding-left:0}
.stat b{display:block;font-family:var(--serif);font-size:clamp(26px,3vw,34px);line-height:1.2;color:var(--ink);font-variant-numeric:tabular-nums}
.stat span{display:block;margin-top:6px;font-size:13px;color:var(--text-3);line-height:1.6}

/* ---------- 大卡网格 ---------- */
.cards-two{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.service-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform 240ms var(--ease),box-shadow 240ms var(--ease),border-color 240ms var(--ease)
}
.service-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--line-strong)}
.service-card__media{overflow:hidden;background:var(--paper-2);position:relative}
.service-card__media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 320ms var(--ease)}
.service-card:hover .service-card__media img{transform:scale(1.03)}
.service-card__body{padding:24px;display:flex;flex-direction:column;flex:1;gap:12px}
.service-card__body h3{font-size:20px;line-height:1.5;font-weight:600;color:var(--ink-deep)}
.service-card__body p{font-size:14.5px;line-height:1.75;color:var(--text-2);flex:1}
.service-card__foot{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:6px}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:13px;font-weight:600;background:rgba(44,90,73,.10);color:var(--ink-light)
}
.badge--outline{background:transparent;border:1px solid var(--line-strong);color:var(--text-2)}

/* ---------- 场景 split ---------- */
.split{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center}
.split--reverse{grid-template-columns:7fr 5fr}
.split__media{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-1)}
.split__media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.split__body h2{font-size:clamp(22px,2.6vw,30px);line-height:1.35;font-weight:700;color:var(--ink-deep);position:relative;padding-left:14px}
.split__body h2::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;background:var(--ink);border-radius:2px}
.split__body>p{margin-top:16px;font-size:15.5px;line-height:1.85;color:var(--text-2)}
.scene-list{margin-top:24px;border-top:1px dashed var(--line-strong)}
.scene-list li{display:flex;gap:16px;padding:18px 0;border-bottom:1px dashed var(--line-strong)}
.scene-list .num{
  font-family:var(--serif);font-size:15px;font-weight:700;color:var(--clay);
  letter-spacing:.06em;padding-top:2px;flex:0 0 32px;font-variant-numeric:tabular-nums
}
.scene-list h3{font-size:17px;font-weight:600;color:var(--ink-deep);line-height:1.6}
.scene-list p{margin-top:4px;font-size:14px;line-height:1.72;color:var(--text-2)}

/* ---------- 流程 ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line-strong);margin-top:8px}
.flow-item{padding:26px 22px 0;border-left:1px solid var(--line);position:relative}
.flow-item:first-child{border-left:0;padding-left:0}
.flow-item::before{
  content:"";position:absolute;left:0;top:-1px;width:34px;height:2px;background:var(--ink)
}
.flow-item:first-child::before{left:0}
.flow-item .step-no{
  font-family:var(--serif);font-size:13px;letter-spacing:.2em;color:var(--clay);font-weight:700;
  display:block;margin-bottom:10px
}
.flow-item h3{font-size:17px;font-weight:600;color:var(--ink-deep);line-height:1.55}
.flow-item p{margin-top:8px;font-size:14px;line-height:1.75;color:var(--text-2)}

/* ---------- 深色证言 ---------- */
.dark-block{background:var(--ink-deep);color:#fff;padding:72px 0}
.dark-block h2{font-size:clamp(22px,2.6vw,30px);line-height:1.35;font-weight:700;color:#fff;padding-left:14px;position:relative}
.dark-block h2::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;background:var(--clay-light);border-radius:2px}
.dark-block .lead{margin-top:14px;font-size:15px;color:rgba(255,255,255,.72);line-height:1.8;max-width:44em}
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:36px}
.quote{
  background:rgba(255,255,255,.04);box-shadow:0 0 0 1px rgba(255,255,255,.12);
  border-radius:var(--r-card);padding:26px;display:flex;flex-direction:column;gap:16px;
  transition:box-shadow 240ms var(--ease),transform 240ms var(--ease)
}
.quote:nth-child(2){transform:translateY(-16px)}
.quote:hover{box-shadow:0 0 0 1px rgba(255,255,255,.28)}
.quote p{font-family:var(--serif);font-size:17px;line-height:1.9;color:#fff}
.quote footer{font-size:13px;color:rgba(255,255,255,.6);line-height:1.6}
.quote footer b{display:block;color:#fff;font-weight:600;font-size:14px;margin-bottom:2px}

/* ---------- FAQ ---------- */
.faq{margin-top:8px;border-top:2px solid var(--ink)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;gap:16px;
  padding:20px 0;font-size:17px;font-weight:600;line-height:1.6;color:var(--ink-deep);
  transition:color 180ms var(--ease)
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--clay)}
.faq summary .idx{
  font-family:var(--serif);font-size:14px;color:var(--clay);font-weight:700;flex:0 0 28px;
  padding-top:3px;font-variant-numeric:tabular-nums
}
.faq summary .sign{
  margin-left:auto;flex:0 0 22px;width:22px;height:22px;position:relative;margin-top:4px;
  border:1px solid var(--line-strong);border-radius:50%
}
.faq summary .sign::before,.faq summary .sign::after{
  content:"";position:absolute;background:var(--ink);left:50%;top:50%;transform:translate(-50%,-50%)
}
.faq summary .sign::before{width:9px;height:1.5px}
.faq summary .sign::after{width:1.5px;height:9px;transition:transform 180ms var(--ease),opacity 180ms var(--ease)}
.faq details[open] summary{color:var(--ink-deep)}
.faq details[open] summary .sign{border-color:var(--ink);background:var(--ink)}
.faq details[open] summary .sign::before,.faq details[open] summary .sign::after{background:#fff}
.faq details[open] summary .sign::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq .answer{padding:0 0 22px 44px;font-size:15px;line-height:1.85;color:var(--text-2);max-width:60em}

/* ---------- CTA 表单 ---------- */
.cta-block{background:var(--paper-2);border-radius:var(--r-lg);padding:48px;border:1px solid var(--line)}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.cta-grid h2{font-size:clamp(22px,2.6vw,30px);line-height:1.35;font-weight:700;color:var(--ink-deep)}
.cta-grid .desc{margin-top:14px;font-size:15.5px;line-height:1.85;color:var(--text-2)}
.check-list{margin-top:24px;display:flex;flex-direction:column;gap:12px}
.check-list li{display:flex;gap:10px;font-size:14.5px;line-height:1.7;color:var(--text-2)}
.check-list svg{flex:0 0 18px;width:18px;height:18px;color:var(--ok);margin-top:3px}
.lead-form{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px;box-shadow:var(--shadow-1)}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.field label{font-size:14px;font-weight:600;color:var(--text)}
.field input,.field textarea{
  width:100%;font-family:inherit;font-size:14.5px;color:var(--text);background:#fff;
  border:1px solid var(--line-strong);border-radius:var(--r-btn);padding:0 14px;height:46px;
  transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease)
}
.field textarea{height:auto;padding:12px 14px;line-height:1.7;min-height:96px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 3px rgba(22,54,44,.10)}
.field input:invalid:not(:placeholder-shown){border-color:var(--err)}
.form-note{font-size:13px;color:var(--text-3);line-height:1.6;margin-top:12px}
.form-msg{margin-top:12px;font-size:13.5px;line-height:1.6;min-height:20px}
.form-msg.is-ok{color:var(--ok)}
.contact-line{margin-top:22px;display:flex;flex-wrap:wrap;gap:20px;font-size:14px;color:var(--text-2)}
.contact-line a{font-weight:600;color:var(--ink)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-deep);color:rgba(255,255,255,.72);padding:64px 0 28px;margin-top:72px}
.footer-grid{display:grid;grid-template-columns:2.2fr 1fr 1fr 1fr;gap:40px}
.footer-brand .logo__mark{color:#fff}
.footer-brand .logo__cn{color:#fff;border-left-color:rgba(255,255,255,.24)}
.footer-brand .logo__dot{color:rgba(255,255,255,.5)}
.footer-brand .logo:hover .logo__mark{color:var(--clay-light)}
.footer-desc{margin-top:18px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.68);max-width:30em}
.footer-contact{margin-top:18px;font-size:13.5px;line-height:2;color:rgba(255,255,255,.62)}
.footer-contact a{color:rgba(255,255,255,.86)}
.footer-contact a:hover{color:#fff;text-decoration:underline}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72)}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.52);line-height:1.7
}

/* ---------- 抽屉 ---------- */
.drawer{position:fixed;inset:0;z-index:120;display:none}
.drawer.is-open{display:block}
.drawer__mask{position:absolute;inset:0;background:rgba(14,36,29,.45)}
.drawer__panel{
  position:absolute;top:0;right:0;width:82%;max-width:340px;height:100%;background:#fff;
  padding:22px;display:flex;flex-direction:column;gap:4px;overflow-y:auto;
  box-shadow:-8px 0 30px rgba(14,36,29,.18)
}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.drawer__close{
  width:38px;height:38px;border:1px solid var(--line-strong);background:#fff;border-radius:var(--r-btn);
  cursor:pointer;color:var(--ink);font-size:18px;line-height:1
}
.drawer__close:hover{border-color:var(--ink)}
.drawer a.drawer-link{
  display:block;padding:12px 4px;font-size:17px;font-weight:500;color:var(--text);
  border-bottom:1px solid var(--line)
}
.drawer a.drawer-link:hover,.drawer a.drawer-link.is-active{color:var(--ink-deep);font-weight:700}
.drawer__foot{margin-top:auto;padding-top:20px;display:flex;flex-direction:column;gap:10px}
.drawer__foot .tel{font-size:14px;color:var(--text-2)}
.drawer__foot .tel a{font-weight:700;color:var(--ink)}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .search{display:none}
  .nav-toggle{display:inline-flex}
  .brand-actions .btn-ghost{display:none}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero::after{display:none}
  .split,.split--reverse{grid-template-columns:1fr;gap:28px}
  .split--reverse .split__media{order:-1}
  .cards-two{grid-template-columns:1fr}
  .flow{grid-template-columns:repeat(2,1fr)}
  .flow-item{border-left:0;padding-left:0;padding-right:0;border-top:1px solid var(--line);margin-top:0}
  .flow-item::before{display:none}
  .flow-item:nth-child(n+3){margin-top:8px}
  .quote-grid{grid-template-columns:1fr}
  .quote:nth-child(2){transform:none}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-block{padding:32px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:44px 0}
  .brand-row{height:56px;gap:12px}
  .logo__dot{display:none}
  .logo__cn{font-size:14px;padding-left:8px}
  .brand-actions .btn{height:38px;padding:0 14px;font-size:14px}
  .hero{padding:36px 0 0}
  .statbar{grid-template-columns:repeat(2,1fr);margin-top:36px;padding-bottom:28px}
  .stat{padding:18px 16px 0;border-left:1px solid var(--line)}
  .stat:nth-child(odd){border-left:0;padding-left:0}
  .stat:nth-child(n+3){border-top:1px solid var(--line);margin-top:18px;padding-top:18px}
  .service-card__body{padding:18px}
  .dark-block{padding:44px 0}
  .quote{padding:20px}
  .cta-block{padding:24px;border-radius:16px}
  .lead-form{padding:18px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding:44px 0 24px;margin-top:48px}
  .footer-bottom{flex-direction:column;gap:8px}
  .faq summary{font-size:16px;gap:12px}
  .faq .answer{padding-left:0}
  .scene-list .num{flex:0 0 26px}
}
@media (max-width:420px){
  .hero-actions .btn{width:100%}
  .flow{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .service-card:hover{transform:none}
  .service-card:hover .service-card__media img{transform:none}
  .quote:hover{transform:none}
}

/* roulang page: category3 */
:root{
  --ink:#16362C;
  --ink-deep:#0E241D;
  --ink-soft:#2C5A49;
  --clay:#C2592F;
  --clay-soft:#E08B5F;
  --paper:#F7F3EB;
  --paper-2:#EFE9DE;
  --card:#FFFFFF;
  --line:#E2DACB;
  --line-strong:#CFC5B2;
  --text:#1F2420;
  --muted:#5C6259;
  --dim:#8A8F86;
  --ok:#2F7D5B;
  --warn:#B4551F;
  --err:#A83A2B;
  --radius:14px;
  --radius-sm:10px;
  --radius-lg:20px;
  --shadow-1:0 1px 2px rgba(22,54,44,.06);
  --shadow-2:0 10px 26px -14px rgba(22,54,44,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sans:'Noto Sans SC','Source Han Sans SC','PingFang SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  --serif:'Noto Serif SC','Songti SC','SimSun',serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
body.is-locked{overflow:hidden;}
img{max-width:100%;display:block;border:0;}
a{color:var(--ink-deep);text-decoration:none;transition:color 180ms var(--ease);}
a:hover{color:var(--clay);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,dl,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
input,textarea,select{font-family:inherit;font-size:15px;color:var(--text);}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:4px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1440px){
  .container{max-width:1280px;}
}

/* ---------- header ---------- */
.site-header{position:relative;z-index:60;background:var(--card);}
.topbar{border-bottom:1px solid var(--line);background:var(--card);}
.topbar__inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:64px;
}
.logo{
  display:inline-flex;
  align-items:baseline;
  gap:10px;
  flex-shrink:0;
  color:var(--ink-deep);
}
.logo:hover{color:var(--ink-deep);}
.logo__mark{
  font-size:21px;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  font-variant-numeric:tabular-nums;
  color:var(--ink-deep);
}
.logo__cn{
  font-size:14px;
  font-weight:600;
  color:var(--ink-soft);
  letter-spacing:.06em;
}
.logo__dot{
  font-size:12.5px;
  color:var(--dim);
  letter-spacing:.08em;
}
.search{
  display:flex;
  align-items:center;
  gap:8px;
  flex:1 1 auto;
  max-width:320px;
  min-width:200px;
  height:40px;
  padding:0 14px;
  background:var(--paper-2);
  border:1px solid transparent;
  border-radius:999px;
  transition:background 180ms var(--ease),border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.search:focus-within{background:var(--card);border-color:var(--ink-soft);box-shadow:0 0 0 3px rgba(22,54,44,.12);}
.search svg{flex:none;width:16px;height:16px;stroke:var(--dim);fill:none;stroke-width:1.6;}
.search input{
  flex:1 1 auto;
  min-width:0;
  height:100%;
  border:0;
  background:transparent;
  font-size:14px;
  outline:none;
}
.search input::placeholder{color:var(--dim);}
.topbar__actions{
  display:flex;
  align-items:center;
  gap:10px;
  margin-left:auto;
  flex-shrink:0;
}
.burger{
  display:none;
  width:40px;height:40px;
  align-items:center;justify-content:center;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  cursor:pointer;
  padding:0;
}
.burger span{
  display:block;width:18px;height:2px;background:var(--ink);
  position:relative;border-radius:2px;
}
.burger span::before,.burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 20px;
  border-radius:var(--radius-sm);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  white-space:nowrap;
  transition:background 180ms var(--ease),color 180ms var(--ease),border-color 180ms var(--ease),transform 120ms var(--ease),box-shadow 180ms var(--ease);
}
.btn:active{transform:translateY(1px);}
.btn--primary{background:var(--ink);color:#fff;}
.btn--primary:hover{background:var(--clay);color:#fff;}
.btn--ghost{background:var(--card);border-color:var(--line);color:var(--ink);}
.btn--ghost:hover{border-color:var(--line-strong);background:var(--paper);color:var(--ink);}
.btn--line{background:transparent;border-color:var(--ink);color:var(--ink);}
.btn--line:hover{background:var(--ink);color:#fff;}
.btn--sm{height:38px;padding:0 16px;font-size:14px;}
.btn--lg{height:48px;padding:0 26px;font-size:16px;}
.btn--block{width:100%;}
.btn[disabled],.btn.is-loading{opacity:.45;cursor:not-allowed;}

.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14.5px;
  font-weight:600;
  color:var(--ink);
}
.link-arrow .ar{transition:transform 180ms var(--ease);}
.link-arrow:hover{color:var(--clay);}
.link-arrow:hover .ar{transform:translateX(3px);}

/* ---------- channel bar ---------- */
.channelbar{
  position:sticky;
  top:0;
  z-index:55;
  background:var(--card);
  border-bottom:1px solid var(--line);
}
.channel-tabs{
  display:flex;
  align-items:center;
  gap:6px;
  height:48px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.channel-tabs::-webkit-scrollbar{display:none;}
.channel-tab{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:36px;
  padding:0 14px;
  border-radius:999px;
  font-size:14.5px;
  font-weight:500;
  color:var(--muted);
  white-space:nowrap;
  transition:color 180ms var(--ease),background 180ms var(--ease);
}
.channel-tab:hover{color:var(--ink);background:var(--paper-2);}
.channel-tab.is-active{
  color:var(--ink-deep);
  font-weight:700;
}
.channel-tab.is-active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:-6px;
  height:2px;
  background:var(--ink);
  border-radius:2px;
}

/* ---------- shared type ---------- */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--ink-soft);
}
.eyebrow::before{
  content:"";
  width:4px;height:14px;
  background:var(--ink);
  border-radius:2px;
}
.section-head{margin-bottom:28px;}
.section-head h2{
  font-family:var(--serif);
  font-size:clamp(22px,2.6vw,30px);
  line-height:1.35;
  font-weight:700;
  letter-spacing:.01em;
  color:var(--ink-deep);
  padding-left:14px;
  border-left:3px solid var(--ink);
}
.section-head p{
  margin-top:12px;
  max-width:720px;
  font-size:15px;
  line-height:1.8;
  color:var(--muted);
}
.badge{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  background:rgba(44,90,73,.12);
  color:var(--ink-soft);
  font-size:13px;
  font-weight:600;
  letter-spacing:.02em;
}
.badge--line{background:transparent;border:1px solid var(--line-strong);color:var(--muted);}

/* ---------- hero ---------- */
.page-hero{
  position:relative;
  background:var(--paper);
  padding:64px 0 72px;
  border-bottom:1px solid var(--line);
}
.hero-grid{
  display:grid;
  grid-template-columns:6fr 6fr;
  gap:48px;
  align-items:center;
}
.hero-copy h1{
  font-family:var(--serif);
  font-size:clamp(28px,4.2vw,44px);
  line-height:1.28;
  font-weight:700;
  letter-spacing:.01em;
  color:var(--ink-deep);
  margin:16px 0 18px;
}
.hero-copy h1 em{
  font-style:normal;
  display:block;
  font-size:clamp(17px,1.9vw,21px);
  font-family:var(--sans);
  font-weight:600;
  color:var(--ink-soft);
  letter-spacing:.01em;
  margin-top:12px;
  line-height:1.6;
}
.hero-lead{
  font-size:15px;
  line-height:1.9;
  color:var(--muted);
  max-width:520px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:26px;
}
.hero-facts{
  display:flex;
  gap:0;
  margin-top:34px;
  border-top:1px solid var(--line);
  padding-top:22px;
}
.hero-facts li{
  flex:1 1 0;
  padding-right:18px;
  border-right:1px solid var(--line);
}
.hero-facts li:last-child{border-right:0;padding-right:0;}
.hero-facts b{
  display:block;
  font-family:var(--serif);
  font-size:22px;
  font-weight:700;
  color:var(--ink-deep);
  line-height:1.3;
  font-variant-numeric:tabular-nums;
}
.hero-facts span{
  display:block;
  margin-top:4px;
  font-size:13px;
  color:var(--dim);
  line-height:1.6;
}
.hero-media{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  border:1px solid var(--line);
}
.hero-media img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  transition:transform 600ms var(--ease);
}
.hero-media:hover img{transform:scale(1.03);}
.hero-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(200deg,rgba(14,36,29,.08) 0%,rgba(14,36,29,.42) 100%);
  pointer-events:none;
}
.hero-media__tag{
  position:absolute;
  left:20px;
  bottom:20px;
  z-index:2;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 14px;
  border-radius:999px;
  background:rgba(247,243,235,.94);
  color:var(--ink-deep);
  font-size:13px;
  font-weight:600;
  letter-spacing:.02em;
}

/* ---------- concept strip ---------- */
.strip{
  background:var(--card);
  border-bottom:1px solid var(--line);
}
.strip__grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
}
.strip__item{
  padding:30px 24px;
  border-right:1px solid var(--line);
}
.strip__item:first-child{padding-left:0;}
.strip__item:last-child{border-right:0;padding-right:0;}
.strip__item b{
  display:block;
  font-family:var(--serif);
  font-size:clamp(24px,2.8vw,32px);
  line-height:1.2;
  color:var(--ink-deep);
  font-variant-numeric:tabular-nums;
}
.strip__item b small{
  font-family:var(--sans);
  font-size:13px;
  font-weight:600;
  color:var(--ink-soft);
  margin-left:4px;
  letter-spacing:.02em;
}
.strip__item span{
  display:block;
  margin-top:8px;
  font-size:14px;
  color:var(--muted);
  line-height:1.7;
}

/* ---------- narrative zigzag ---------- */
.narrative{padding:72px 0 20px;}
.zig{
  display:grid;
  align-items:center;
  gap:48px;
  padding-bottom:64px;
  margin-bottom:64px;
  border-bottom:1px solid var(--line);
}
.zig:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0;}
.zig--a{grid-template-columns:5fr 7fr;}
.zig--b{grid-template-columns:7fr 5fr;}
.zig__media{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
}
.zig__media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  transition:transform 600ms var(--ease);
}
.zig__media:hover img{transform:scale(1.03);}
.zig__num{
  position:absolute;
  top:16px;
  left:16px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:44px;
  height:28px;
  padding:0 12px;
  border-radius:999px;
  background:var(--ink);
  color:#fff;
  font-size:13px;
  font-weight:700;
  letter-spacing:.1em;
  font-variant-numeric:tabular-nums;
}
.zig__body h3{
  font-family:var(--serif);
  font-size:clamp(20px,2.2vw,26px);
  line-height:1.4;
  font-weight:700;
  color:var(--ink-deep);
  margin:14px 0 14px;
}
.zig__body p{
  font-size:15.5px;
  line-height:1.9;
  color:var(--muted);
  margin-bottom:14px;
  max-width:560px;
}
.point-list{margin-top:20px;display:grid;gap:10px;}
.point-list li{
  position:relative;
  padding-left:18px;
  font-size:14.5px;
  line-height:1.75;
  color:var(--text);
}
.point-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:9px;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--ink);
}

/* ---------- scenario strips ---------- */
.scenario{
  background:var(--card);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:72px 0;
}
.scenario-list{border-top:1px dashed var(--line-strong);}
.scenario-item{
  display:grid;
  grid-template-columns:64px 1fr 1.1fr;
  gap:24px;
  align-items:start;
  padding:24px 0;
  border-bottom:1px dashed var(--line-strong);
  transition:background 200ms var(--ease);
}
.scenario-item:hover{background:var(--paper);}
.scenario-item .idx{
  font-family:var(--serif);
  font-size:20px;
  font-weight:700;
  color:var(--clay);
  letter-spacing:.06em;
  font-variant-numeric:tabular-nums;
}
.scenario-item h3{
  font-size:17px;
  font-weight:600;
  line-height:1.6;
  color:var(--ink-deep);
}
.scenario-item p{
  font-size:14.5px;
  line-height:1.8;
  color:var(--muted);
}

/* ---------- results ---------- */
.results{
  background:var(--ink-deep);
  color:#fff;
  padding:72px 0;
}
.results .section-head h2{
  color:#fff;
  border-left-color:var(--clay-soft);
}
.results .section-head p{color:rgba(255,255,255,.7);}
.results .eyebrow{color:var(--clay-soft);}
.results .eyebrow::before{background:var(--clay-soft);}
.metric-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
  margin-top:12px;
  border-top:1px solid rgba(255,255,255,.14);
}
.metric{
  padding:28px 24px 4px;
  border-right:1px solid rgba(255,255,255,.14);
}
.metric:first-child{padding-left:0;}
.metric:last-child{border-right:0;}
.metric b{
  display:block;
  font-family:var(--serif);
  font-size:clamp(30px,4vw,44px);
  line-height:1.1;
  font-weight:700;
  color:#fff;
  font-variant-numeric:tabular-nums;
}
.metric b small{font-size:16px;font-weight:600;margin-left:4px;color:var(--clay-soft);}
.metric span{
  display:block;
  margin-top:10px;
  font-size:13.5px;
  line-height:1.7;
  color:rgba(255,255,255,.7);
}

/* ---------- faq ---------- */
.faq{padding:72px 0;}
.faq-wrap{
  border-top:2px solid var(--ink);
}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  display:flex;
  align-items:flex-start;
  gap:16px;
  padding:22px 0;
  cursor:pointer;
  list-style:none;
  font-size:16.5px;
  font-weight:600;
  line-height:1.6;
  color:var(--ink-deep);
  transition:color 180ms var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--clay);}
.faq-item summary .no{
  flex:none;
  font-family:var(--serif);
  font-size:14px;
  font-weight:700;
  color:var(--dim);
  letter-spacing:.08em;
  padding-top:3px;
  font-variant-numeric:tabular-nums;
}
.faq-item summary .sign{
  margin-left:auto;
  flex:none;
  width:22px;height:22px;
  position:relative;
  border-radius:50%;
  border:1px solid var(--line-strong);
  transition:border-color 180ms var(--ease),background 180ms var(--ease);
}
.faq-item summary .sign::before,
.faq-item summary .sign::after{
  content:"";
  position:absolute;
  background:var(--ink-soft);
  border-radius:2px;
  transition:transform 200ms var(--ease),background 180ms var(--ease);
}
.faq-item summary .sign::before{left:6px;right:6px;top:10px;height:1.5px;}
.faq-item summary .sign::after{top:6px;bottom:6px;left:10px;width:1.5px;}
.faq-item[open] summary{color:var(--ink);}
.faq-item[open] summary .sign{border-color:var(--ink);background:rgba(22,54,44,.06);}
.faq-item[open] summary .sign::after{transform:scaleY(0);}
.faq-item .answer{
  padding:0 0 24px 46px;
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
  max-width:820px;
}

/* ---------- cta ---------- */
.cta-section{padding:0 0 80px;}
.cta-box{
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:48px;
  display:grid;
  grid-template-columns:6fr 6fr;
  gap:48px;
}
.cta-copy h2{
  font-family:var(--serif);
  font-size:clamp(22px,2.6vw,30px);
  line-height:1.38;
  font-weight:700;
  color:var(--ink-deep);
  margin-bottom:14px;
}
.cta-copy p{
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
  max-width:460px;
}
.assure{
  margin-top:24px;
  display:grid;
  gap:12px;
}
.assure li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:14.5px;
  line-height:1.7;
  color:var(--text);
}
.assure svg{
  flex:none;
  width:18px;height:18px;
  margin-top:4px;
  stroke:var(--ok);
  fill:none;
  stroke-width:2;
}
.form-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px;
  box-shadow:var(--shadow-1);
}
.form-row{margin-bottom:16px;}
.form-row label{
  display:block;
  font-size:14px;
  font-weight:600;
  color:var(--ink-deep);
  margin-bottom:7px;
}
.form-row input,
.form-row textarea{
  width:100%;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  background:var(--card);
  padding:12px 14px;
  font-size:15px;
  line-height:1.5;
  color:var(--text);
  transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.form-row input{height:46px;padding:0 14px;}
.form-row textarea{min-height:96px;resize:vertical;}
.form-row input::placeholder,
.form-row textarea::placeholder{color:var(--dim);}
.form-row input:focus,
.form-row textarea:focus{
  outline:none;
  border-color:var(--ink-soft);
  box-shadow:0 0 0 3px rgba(22,54,44,.12);
}
.form-note{
  margin-top:12px;
  font-size:13px;
  line-height:1.7;
  color:var(--dim);
}
.form-status{
  margin-top:10px;
  font-size:13px;
  color:var(--ok);
  display:none;
}
.form-status.is-visible{display:block;}

/* ---------- footer ---------- */
.site-footer{
  background:var(--ink-deep);
  color:#fff;
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.7fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .logo__mark{color:#fff;}
.footer-brand .logo__cn{color:rgba(255,255,255,.82);}
.footer-brand .logo__dot{color:rgba(255,255,255,.5);}
.footer-desc{
  margin-top:18px;
  font-size:14px;
  line-height:1.85;
  color:rgba(255,255,255,.7);
  max-width:340px;
}
.footer-contact{
  margin-top:20px;
  font-size:14px;
  line-height:2;
  color:rgba(255,255,255,.7);
}
.footer-contact a{color:rgba(255,255,255,.9);}
.footer-contact a:hover{color:var(--clay-soft);}
.footer-col h3{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
  letter-spacing:.02em;
}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{
  font-size:14px;
  color:rgba(255,255,255,.72);
  transition:color 180ms var(--ease);
}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:20px 0 26px;
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  font-size:13px;
  color:rgba(255,255,255,.55);
}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(14,36,29,.45);
  opacity:0;
  visibility:hidden;
  transition:opacity 240ms var(--ease),visibility 240ms var(--ease);
  z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;
  top:0;right:0;
  height:100%;
  width:84%;
  max-width:380px;
  background:var(--card);
  z-index:95;
  transform:translateX(100%);
  transition:transform 260ms var(--ease);
  display:flex;
  flex-direction:column;
  padding:20px 22px 26px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer__head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-bottom:16px;
  border-bottom:1px solid var(--line);
}
.drawer__close{
  width:36px;height:36px;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  background:var(--card);
  cursor:pointer;
  font-size:16px;
  line-height:1;
  color:var(--ink);
  padding:0;
}
.drawer__nav{display:grid;gap:2px;padding:18px 0;flex:1 1 auto;}
.drawer__nav a{
  display:block;
  padding:12px 4px;
  font-size:17px;
  font-weight:500;
  color:var(--ink-deep);
  border-bottom:1px solid var(--line);
}
.drawer__nav a.is-active{color:var(--clay);font-weight:700;}
.drawer__foot{display:grid;gap:10px;padding-top:16px;border-top:1px solid var(--line);}
.drawer__foot .tel{
  font-size:14px;
  color:var(--muted);
}
.drawer__foot .tel a{font-weight:700;color:var(--ink-deep);}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .hero-grid{gap:36px;}
}
@media (max-width:1023px){
  .search{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-media{order:-1;}
  .zig--a,.zig--b{grid-template-columns:1fr;gap:24px;}
  .zig__body{order:2;}
  .zig__media{order:1;}
  .strip__grid{grid-template-columns:repeat(2,1fr);}
  .strip__item{padding:24px 20px;border-bottom:1px solid var(--line);}
  .strip__item:nth-child(2n){border-right:0;}
  .strip__item:nth-child(1),.strip__item:nth-child(2){padding-top:26px;}
  .strip__item:nth-last-child(-n+2){border-bottom:0;}
  .metric-grid{grid-template-columns:repeat(2,1fr);}
  .metric{padding:24px 18px 6px;}
  .metric:nth-child(2n){border-right:0;}
  .metric:nth-child(1),.metric:nth-child(2){padding-top:26px;}
  .cta-box{grid-template-columns:1fr;gap:32px;padding:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-desc{max-width:none;}
  .channel-tab.is-active::after{bottom:-4px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .topbar__inner{min-height:56px;gap:12px;}
  .logo__mark{font-size:19px;}
  .logo__cn{font-size:13px;}
  .logo__dot{display:none;}
  .topbar__actions .btn--ghost{display:none;}
  .burger{display:inline-flex;}
  .page-hero{padding:40px 0 48px;}
  .hero-copy h1{margin:12px 0 14px;}
  .hero-facts{flex-wrap:wrap;gap:16px 0;margin-top:26px;padding-top:18px;}
  .hero-facts li{flex:1 1 50%;border-right:0;padding-right:0;padding-bottom:4px;}
  .strip__grid{grid-template-columns:1fr;}
  .strip__item{border-right:0;padding:20px 0;}
  .strip__item:nth-child(2n){border-right:0;}
  .narrative{padding:40px 0 8px;}
  .zig{padding-bottom:40px;margin-bottom:40px;gap:20px;}
  .scenario{padding:40px 0;}
  .scenario-item{grid-template-columns:40px 1fr;gap:14px 12px;}
  .scenario-item p{grid-column:2;}
  .results{padding:40px 0;}
  .metric-grid{grid-template-columns:1fr;border-top:1px solid rgba(255,255,255,.14);}
  .metric{border-right:0;border-bottom:1px solid rgba(255,255,255,.14);padding:20px 0;}
  .metric:last-child{border-bottom:0;}
  .faq{padding:40px 0;}
  .faq-item summary{padding:18px 0;font-size:15.5px;gap:12px;}
  .faq-item .answer{padding:0 0 20px 34px;font-size:14.5px;}
  .cta-section{padding:0 0 48px;}
  .cta-box{padding:24px 18px;border-radius:var(--radius);}
  .form-card{padding:20px 16px;}
  .site-footer{padding:44px 0 0;}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;font-size:12.5px;}
  .section-head h2{font-size:22px;}
  .section-head p{font-size:14.5px;}
}
@media (max-width:420px){
  .logo__mark{font-size:17px;}
  .hero-actions .btn{width:100%;}
  .hero-media__tag{left:12px;bottom:12px;font-size:12px;padding:6px 10px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  .hero-media:hover img,.zig__media:hover img{transform:none;}
  .card:hover,.btn:active{transform:none;}
}

/* roulang page: category2 */
:root{
  --ink:#16362C;
  --ink-deep:#0E241D;
  --ink-soft:#2C5A49;
  --clay:#C2592F;
  --clay-soft:#E08B5F;
  --paper:#F7F3EB;
  --paper-2:#EFE9DE;
  --card:#FFFFFF;
  --line:#E2DACB;
  --line-strong:#CFC5B2;
  --text:#1F2420;
  --muted:#5C6259;
  --faint:#8A8F86;
  --ok:#2F7D5B;
  --warn:#B4551F;
  --err:#A83A2B;
  --info:#3F6B77;
  --r-card:14px;
  --r-img:10px;
  --r-btn:10px;
  --r-pill:999px;
  --r-block:20px;
  --sh-1:0 1px 2px rgba(22,54,44,.06);
  --sh-2:0 10px 26px -14px rgba(22,54,44,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:180ms;
  --sans:'Noto Sans SC','Source Han Sans SC','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  --serif:'Noto Serif SC','Songti SC',serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
body.is-locked{overflow:hidden}
img{display:block;max-width:100%}
a{color:var(--ink-deep);text-decoration:none;transition:color var(--t) var(--ease)}
a:hover{color:var(--clay)}
button{font:inherit;cursor:pointer;border:0;background:none}
input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:4px}
::selection{background:rgba(194,89,47,.18)}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1440px){
  .container{max-width:1280px}
}

/* ---------- 品牌行 ---------- */
.brandbar{
  background:#fff;
  border-bottom:1px solid var(--line);
}
.brandbar__inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:64px;
}
.logo{
  display:inline-flex;
  align-items:baseline;
  gap:10px;
  flex:0 0 auto;
}
.logo__mark{
  font-size:18px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--ink-deep);
  font-variant-numeric:tabular-nums;
}
.logo__cn{
  font-size:14px;
  font-weight:600;
  color:var(--ink);
  letter-spacing:.04em;
}
.logo__dot{
  font-size:13px;
  color:var(--faint);
  letter-spacing:.08em;
}
.search{
  display:none;
  align-items:center;
  gap:8px;
  flex:1 1 280px;
  max-width:320px;
  height:38px;
  padding:0 14px;
  background:var(--paper-2);
  border:1px solid transparent;
  border-radius:var(--r-btn);
  transition:background var(--t) var(--ease),border-color var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.search:focus-within{
  background:#fff;
  border-color:var(--ink);
  box-shadow:0 0 0 3px rgba(22,54,44,.10);
}
.search svg{flex:0 0 auto;color:var(--faint)}
.search input{
  flex:1;
  min-width:0;
  border:0;
  background:transparent;
  font-size:14px;
  line-height:1.6;
  outline:none;
}
.search input::placeholder{color:var(--faint)}
.brandbar__actions{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:auto;
  flex:0 0 auto;
}
.hamburger{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;
  height:40px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:#fff;
  color:var(--ink);
  transition:border-color var(--t) var(--ease),color var(--t) var(--ease);
}
.hamburger:hover{border-color:var(--ink);color:var(--ink-deep)}
@media (min-width:1024px){
  .search{display:flex}
  .hamburger{display:none}
}
@media (max-width:767px){
  .brandbar__inner{min-height:56px;gap:12px}
  .logo__cn{font-size:13px}
  .logo__dot{display:none}
  .hide-sm{display:none !important}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 20px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  white-space:nowrap;
  transition:background var(--t) var(--ease),color var(--t) var(--ease),border-color var(--t) var(--ease),transform var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.btn:active{transform:translateY(1px)}
.btn--primary{background:var(--ink);border-color:var(--ink);color:#fff}
.btn--primary:hover{background:var(--clay);border-color:var(--clay);color:#fff}
.btn--ghost{background:#fff;border-color:var(--line);color:var(--ink-deep)}
.btn--ghost:hover{border-color:var(--ink);color:var(--ink-deep);box-shadow:var(--sh-1)}
.btn--sm{height:38px;padding:0 16px;font-size:14px}
.btn--block{width:100%}
.btn[disabled]{opacity:.45;cursor:not-allowed}
.textlink{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--ink);
}
.textlink svg{transition:transform var(--t) var(--ease)}
.textlink:hover{color:var(--clay)}
.textlink:hover svg{transform:translateX(3px)}

/* ---------- 频道行 ---------- */
.channelbar{
  position:sticky;
  top:0;
  z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
}
.channel-tabs{
  display:flex;
  align-items:stretch;
  gap:4px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
  padding:0;
}
.channel-tabs::-webkit-scrollbar{display:none}
.channel-tab{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:48px;
  padding:0 16px;
  font-size:15px;
  font-weight:500;
  color:var(--muted);
  white-space:nowrap;
  transition:color var(--t) var(--ease);
}
.channel-tab::after{
  content:"";
  position:absolute;
  left:16px;
  right:16px;
  bottom:0;
  height:2px;
  background:var(--ink);
  transform:scaleX(0);
  transform-origin:center;
  transition:transform var(--t) var(--ease);
}
.channel-tab:hover{color:var(--ink-deep)}
.channel-tab:hover::after{transform:scaleX(.6)}
.channel-tab.is-active{color:var(--ink-deep);font-weight:600}
.channel-tab.is-active::after{transform:scaleX(1)}
@media (max-width:1023px){
  .channel-tabs{
    padding:0 16px;
    -webkit-overflow-scrolling:touch;
  }
  .channel-tab{padding:0 12px}
  .channel-tab::after{left:12px;right:12px}
}

/* ---------- 抽屉 ---------- */
.scrim{
  position:fixed;
  inset:0;
  background:rgba(14,36,29,.45);
  opacity:0;
  pointer-events:none;
  transition:opacity 240ms var(--ease);
  z-index:90;
}
.scrim.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;
  top:0;
  right:0;
  width:80%;
  max-width:360px;
  height:100%;
  background:#fff;
  display:flex;
  flex-direction:column;
  transform:translateX(100%);
  transition:transform 240ms var(--ease);
  z-index:100;
  box-shadow:-18px 0 40px -30px rgba(14,36,29,.6);
}
.drawer.is-open{transform:translateX(0)}
.drawer__head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:18px 20px;
  border-bottom:1px solid var(--line);
}
.drawer__close{
  width:36px;
  height:36px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  color:var(--ink);
  font-size:18px;
  line-height:1;
}
.drawer__body{
  flex:1;
  overflow-y:auto;
  padding:12px 8px 24px;
}
.drawer__link{
  display:block;
  padding:14px 16px;
  font-size:17px;
  font-weight:500;
  color:var(--ink-deep);
  border-radius:var(--r-btn);
}
.drawer__link:hover{background:var(--paper-2);color:var(--ink-deep)}
.drawer__link.is-active{background:var(--paper-2);color:var(--ink-deep);font-weight:600}
.drawer__foot{
  padding:16px 20px 24px;
  border-top:1px solid var(--line);
}
.drawer__foot p{font-size:13px;color:var(--faint);margin:12px 0 0;text-align:center}

/* ---------- 页面头部 ---------- */
.page-hero{
  padding:56px 0 64px;
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,#FFFFFF 0%,var(--paper) 100%);
}
.page-hero__grid{
  display:grid;
  grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);
  gap:48px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:12px;
  font-weight:700;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--ink);
  margin-bottom:18px;
}
.eyebrow::before{
  content:"";
  width:22px;
  height:2px;
  background:var(--clay);
}
.page-hero h1{
  font-family:var(--serif);
  font-size:clamp(28px,4.2vw,44px);
  line-height:1.28;
  letter-spacing:.01em;
  color:var(--ink-deep);
  max-width:20ch;
}
.page-hero__lede{
  margin-top:18px;
  max-width:38em;
  font-size:14.5px;
  line-height:1.85;
  color:var(--muted);
}
.page-hero__actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:26px;
}
.hero-facts{
  display:flex;
  flex-wrap:wrap;
  margin-top:32px;
  border-top:1px solid var(--line);
  padding-top:18px;
}
.hero-facts li{
  padding-right:22px;
  margin-right:22px;
  border-right:1px solid var(--line);
  font-size:13px;
  color:var(--muted);
  line-height:1.7;
}
.hero-facts li:last-child{border-right:0;margin-right:0;padding-right:0}
.hero-facts b{
  display:block;
  font-family:var(--serif);
  font-size:20px;
  font-weight:700;
  color:var(--ink-deep);
  font-variant-numeric:tabular-nums;
}
.hero-figure{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh-2);
}
.hero-figure img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
}
.hero-figure::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(200deg,rgba(22,54,44,.08) 0%,rgba(14,36,29,.30) 100%);
  pointer-events:none;
}
.hero-figure__tag{
  position:absolute;
  left:18px;
  bottom:18px;
  z-index:2;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.92);
  color:var(--ink-deep);
  font-size:13px;
  font-weight:600;
  letter-spacing:.04em;
}

/* ---------- 文档布局 ---------- */
.doc-wrap{
  padding:72px 0;
}
.doc-layout{
  display:grid;
  grid-template-columns:260px minmax(0,1fr);
  gap:56px;
  align-items:start;
}
.doc-toc{
  position:sticky;
  top:96px;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--card);
  padding:20px;
  box-shadow:var(--sh-1);
}
.doc-toc__title{
  font-size:13px;
  font-weight:700;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--faint);
  margin-bottom:14px;
}
.doc-toc ul li + li{margin-top:2px}
.doc-toc a{
  display:block;
  position:relative;
  padding:9px 12px 9px 16px;
  font-size:14.5px;
  color:var(--muted);
  border-radius:8px;
  transition:color var(--t) var(--ease),background var(--t) var(--ease);
}
.doc-toc a::before{
  content:"";
  position:absolute;
  left:0;
  top:50%;
  transform:translateY(-50%);
  width:3px;
  height:0;
  background:var(--ink);
  border-radius:2px;
  transition:height var(--t) var(--ease);
}
.doc-toc a:hover{background:var(--paper);color:var(--ink-deep)}
.doc-toc a.is-active{color:var(--ink-deep);font-weight:600;background:var(--paper)}
.doc-toc a.is-active::before{height:18px}
.doc-toc__foot{
  margin-top:18px;
  padding-top:16px;
  border-top:1px dashed var(--line-strong);
}
.doc-toc__foot p{
  font-size:13px;
  line-height:1.7;
  color:var(--faint);
  margin-bottom:10px;
}

.doc-main{max-width:760px}
.doc-section{
  padding:0 0 40px;
  margin-bottom:40px;
  border-bottom:1px solid var(--line);
}
.doc-section:last-of-type{border-bottom:0;margin-bottom:0;padding-bottom:0}
.doc-section h2{
  position:relative;
  padding-left:14px;
  font-size:clamp(22px,2.6vw,30px);
  line-height:1.4;
  color:var(--ink-deep);
  margin-bottom:18px;
}
.doc-section h2::before{
  content:"";
  position:absolute;
  left:0;
  top:.28em;
  width:3px;
  height:1em;
  background:var(--ink);
  border-radius:2px;
}
.doc-section h3{
  font-size:19px;
  color:var(--ink-deep);
  margin:24px 0 12px;
}
.doc-section p{
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  margin-bottom:1.15em;
}
.doc-section p.small{
  font-size:14.5px;
  color:var(--muted);
}
.point-list{margin-top:16px}
.point-list li{
  position:relative;
  padding-left:20px;
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
  margin-bottom:10px;
}
.point-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:.72em;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--ink-soft);
}
.point-list li strong{color:var(--ink-deep);font-weight:600}
.doc-figure{
  margin:24px 0;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  background:var(--card);
}
.doc-figure img{width:100%;aspect-ratio:3/2;object-fit:cover}
.doc-figure figcaption{
  padding:12px 18px;
  font-size:13px;
  line-height:1.7;
  color:var(--faint);
  border-top:1px solid var(--line);
}
.quote{
  margin:24px 0;
  padding:20px;
  background:var(--paper-2);
  border-left:3px solid var(--ink);
  border-radius:0 var(--r-img) var(--r-img) 0;
  font-family:var(--serif);
  font-size:17px;
  line-height:1.9;
  color:var(--ink-deep);
}

/* ---------- 数据条 ---------- */
.data-band{padding:0 0 72px}
.data-panel{
  background:var(--ink-deep);
  color:#fff;
  border-radius:var(--r-block);
  padding:44px 40px;
}
.data-panel__head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  padding-bottom:24px;
  border-bottom:1px solid rgba(255,255,255,.14);
  margin-bottom:32px;
}
.data-panel__head h2{
  font-size:clamp(22px,2.6vw,28px);
  color:#fff;
}
.data-panel__head p{
  font-size:14px;
  color:rgba(255,255,255,.66);
  margin:0;
  max-width:36em;
}
.data-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:0;
}
.data-item{
  padding:0 24px;
  border-left:1px solid rgba(255,255,255,.14);
}
.data-item:first-child{border-left:0;padding-left:0}
.data-item b{
  display:block;
  font-family:var(--serif);
  font-size:clamp(32px,4vw,46px);
  line-height:1.1;
  color:#fff;
  font-variant-numeric:tabular-nums;
}
.data-item b span{
  font-family:var(--sans);
  font-size:14px;
  font-weight:500;
  color:rgba(255,255,255,.7);
  margin-left:6px;
  letter-spacing:.02em;
}
.data-item p{
  margin:12px 0 0;
  font-size:13.5px;
  line-height:1.75;
  color:rgba(255,255,255,.7);
}

/* ---------- FAQ ---------- */
.faq-section{padding:0 0 72px}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom:28px;
}
.section-head h2{
  position:relative;
  padding-left:14px;
  font-size:clamp(22px,2.6vw,30px);
  color:var(--ink-deep);
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;
  top:.28em;
  width:3px;
  height:1em;
  background:var(--ink);
  border-radius:2px;
}
.section-head p{
  font-size:14.5px;
  color:var(--muted);
  margin:0;
  max-width:44em;
}
.faq{
  border-top:2px solid var(--ink);
}
.faq details{
  border-bottom:1px solid var(--line);
}
.faq summary{
  display:flex;
  align-items:flex-start;
  gap:16px;
  padding:20px 4px;
  font-size:17px;
  font-weight:600;
  line-height:1.65;
  color:var(--ink-deep);
  cursor:pointer;
  list-style:none;
  transition:color var(--t) var(--ease);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{
  content:"+";
  flex:0 0 auto;
  width:24px;
  font-family:var(--serif);
  font-size:20px;
  font-weight:700;
  line-height:1.4;
  color:var(--ink-soft);
  transition:transform var(--t) var(--ease),color var(--t) var(--ease);
}
.faq details[open] summary{color:var(--ink)}
.faq details[open] summary::before{content:"−";color:var(--clay)}
.faq summary:hover{color:var(--ink)}
.faq__answer{
  padding:0 4px 22px 40px;
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
}

/* ---------- CTA ---------- */
.cta-section{padding:0 0 80px}
.cta-panel{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:48px;
  padding:48px;
  background:var(--paper-2);
  border-radius:var(--r-block);
  border:1px solid var(--line);
}
.cta-panel h2{
  font-size:clamp(22px,2.6vw,30px);
  color:var(--ink-deep);
  margin-bottom:14px;
}
.cta-panel__lead{
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
  margin-bottom:22px;
}
.checklist li{
  position:relative;
  padding-left:26px;
  font-size:14.5px;
  line-height:1.8;
  color:var(--ink-soft);
  margin-bottom:10px;
}
.checklist li::before{
  content:"";
  position:absolute;
  left:0;
  top:.55em;
  width:14px;
  height:8px;
  border-left:2px solid var(--ok);
  border-bottom:2px solid var(--ok);
  transform:rotate(-45deg);
}
.form-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px;
  box-shadow:var(--sh-1);
}
.field{margin-bottom:16px}
.field label{
  display:block;
  font-size:14px;
  font-weight:600;
  color:var(--ink-deep);
  margin-bottom:8px;
}
.field input,
.field textarea{
  width:100%;
  min-height:46px;
  padding:10px 14px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:#fff;
  font-size:15px;
  line-height:1.6;
  color:var(--text);
  transition:border-color var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.field textarea{min-height:96px;resize:vertical}
.field input::placeholder,
.field textarea::placeholder{color:var(--faint)}
.field input:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--ink);
  box-shadow:0 0 0 3px rgba(22,54,44,.10);
}
.field .hint{font-size:13px;color:var(--faint);margin-top:6px}
.field .error{
  display:none;
  font-size:13px;
  color:var(--err);
  margin-top:6px;
}
.field.has-error input,
.field.has-error textarea{border-color:var(--err)}
.field.has-error .error{display:block}
.form-note{
  font-size:13px;
  line-height:1.7;
  color:var(--faint);
  margin-top:12px;
  text-align:center;
}
.form-success{
  display:none;
  margin-top:12px;
  padding:12px 14px;
  border-radius:var(--r-btn);
  background:rgba(47,125,91,.10);
  color:var(--ok);
  font-size:13.5px;
  line-height:1.7;
}
.form-success.is-visible{display:block}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink-deep);
  color:#fff;
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(255,255,255,.14);
}
.footer-brand .logo{margin-bottom:16px}
.footer-brand .logo__mark{color:#fff}
.footer-brand .logo__cn{color:rgba(255,255,255,.86)}
.footer-brand .logo__dot{color:rgba(255,255,255,.5)}
.footer-desc{
  font-size:14px;
  line-height:1.85;
  color:rgba(255,255,255,.68);
  max-width:32em;
  margin-bottom:18px;
}
.footer-contact{
  font-size:14px;
  line-height:2;
  color:rgba(255,255,255,.68);
}
.footer-contact a{color:rgba(255,255,255,.9)}
.footer-contact a:hover{color:#fff;text-decoration:underline}
.footer-col h3{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
}
.footer-col ul li + li{margin-top:10px}
.footer-col a{
  font-size:14px;
  color:rgba(255,255,255,.72);
}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-top:22px;
  font-size:13px;
  color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .page-hero{padding:40px 0 48px}
  .page-hero__grid{grid-template-columns:1fr;gap:32px}
  .hero-figure img{aspect-ratio:16/9}
  .doc-wrap{padding:56px 0}
  .doc-layout{grid-template-columns:1fr;gap:32px}
  .doc-toc{
    position:static;
    padding:16px;
  }
  .doc-toc ul{
    display:flex;
    gap:8px;
    overflow-x:auto;
    scrollbar-width:none;
    -ms-overflow-style:none;
    padding-bottom:4px;
    margin:0 -4px;
  }
  .doc-toc ul::-webkit-scrollbar{display:none}
  .doc-toc ul li + li{margin-top:0}
  .doc-toc a{
    white-space:nowrap;
    padding:8px 14px;
    border:1px solid var(--line);
    border-radius:var(--r-pill);
    font-size:13.5px;
  }
  .doc-toc a::before{display:none}
  .doc-toc a.is-active{
    background:var(--ink);
    border-color:var(--ink);
    color:#fff;
  }
  .doc-toc__foot{display:none}
  .doc-main{max-width:none}
  .data-panel{padding:32px 26px}
  .data-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 0}
  .data-item:nth-child(odd){border-left:0;padding-left:0}
  .data-item:nth-child(n+3){padding-top:24px;border-top:1px solid rgba(255,255,255,.14)}
  .cta-panel{grid-template-columns:1fr;gap:32px;padding:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .page-hero{padding:32px 0 40px}
  .page-hero h1{max-width:none}
  .page-hero__lede{font-size:14px}
  .hero-facts li{
    padding-right:16px;
    margin-right:16px;
    font-size:12.5px;
  }
  .hero-facts b{font-size:18px}
  .doc-wrap{padding:40px 0}
  .doc-section{padding-bottom:28px;margin-bottom:28px}
  .doc-section h2{font-size:22px}
  .doc-section p{font-size:15.5px}
  .data-band{padding-bottom:48px}
  .data-panel{border-radius:16px;padding:26px 18px}
  .data-item{padding:0 16px}
  .faq-section{padding-bottom:48px}
  .faq summary{font-size:16px;padding:16px 0}
  .faq__answer{padding:0 0 18px 40px;font-size:14.5px}
  .cta-section{padding-bottom:56px}
  .cta-panel{padding:24px 18px;border-radius:16px}
  .form-card{padding:20px 16px}
  .site-footer{padding:48px 0 24px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:520px){
  .brandbar__actions .btn--primary{padding:0 12px}
  .hero-facts{flex-direction:column;align-items:flex-start;gap:12px}
  .hero-facts li{
    border-right:0;
    padding-right:0;
    margin-right:0;
    display:flex;
    align-items:baseline;
    gap:10px;
  }
  .hero-facts b{display:inline;font-size:17px}
  .data-grid{grid-template-columns:1fr}
  .data-item{
    border-left:0;
    padding-left:0;
    padding-right:0;
  }
  .data-item:nth-child(n+2){
    border-top:1px solid rgba(255,255,255,.14);
    padding-top:20px;
  }
  .section-head h2{font-size:21px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
  .doc-toc a.is-active::before{transition:none}
}

/* roulang page: category4 */
:root{
  --green-900:#0E241D;
  --green-800:#16362C;
  --green-600:#2C5A49;
  --clay:#C2592F;
  --clay-light:#E08B5F;
  --paper:#F7F3EB;
  --paper-2:#EFE9DE;
  --card:#FFFFFF;
  --line:#E2DACB;
  --line-strong:#CFC5B2;
  --text:#1F2420;
  --text-2:#5C6259;
  --muted:#8A8F86;
  --ok:#2F7D5B;
  --warn:#B4551F;
  --err:#A83A2B;
  --info:#3F6B77;
  --r-card:14px;
  --r-img:10px;
  --r-btn:10px;
  --r-pill:999px;
  --r-block:20px;
  --shadow-1:0 1px 2px rgba(22,54,44,.06);
  --shadow-2:0 10px 26px -14px rgba(22,54,44,.28);
  --sans:'Noto Sans SC','Source Han Sans SC','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  --serif:'Noto Serif SC','Songti SC',serif;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--green-900);text-decoration:none;transition:color 180ms var(--ease);}
a:hover{color:var(--clay);}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
input,textarea,select{font-family:inherit;font-size:15px;color:var(--text);}
:focus-visible{outline:2px solid var(--green-800);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1440px){.container{max-width:1280px;}}

/* ---------- 顶部品牌行 ---------- */
.topbar{
  background:#fff;
  border-bottom:1px solid var(--line);
  position:relative;
  z-index:60;
}
.topbar__inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:64px;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none;}
.logo__mark{
  font-size:19px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--green-900);
  font-variant-numeric:tabular-nums;
}
.logo__cn{
  font-size:14px;
  color:var(--text-2);
  border-left:1px solid var(--line);
  padding-left:10px;
  line-height:1.2;
}
.logo__dot{
  font-size:12px;
  letter-spacing:.08em;
  color:var(--muted);
  line-height:1.2;
}
.topbar__search{
  flex:1 1 auto;
  max-width:320px;
  margin-left:auto;
  position:relative;
}
.topbar__search svg{
  position:absolute;
  left:14px;
  top:50%;
  transform:translateY(-50%);
  width:18px;height:18px;
  stroke:var(--muted);
  fill:none;
  stroke-width:1.5;
}
.topbar__search input{
  width:100%;
  height:40px;
  padding:0 14px 0 42px;
  border:1px solid transparent;
  border-radius:var(--r-pill);
  background:var(--paper-2);
  color:var(--text);
  transition:background 180ms var(--ease),border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.topbar__search input::placeholder{color:var(--muted);}
.topbar__search input:focus{
  background:#fff;
  border-color:var(--green-800);
  box-shadow:0 0 0 3px rgba(22,54,44,.10);
  outline:none;
}
.topbar__actions{display:flex;align-items:center;gap:12px;flex:none;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 20px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  transition:background 180ms var(--ease),color 180ms var(--ease),border-color 180ms var(--ease),transform 160ms var(--ease),box-shadow 200ms var(--ease);
  white-space:nowrap;
}
.btn:active{transform:translateY(1px);}
.btn--primary{background:var(--green-800);color:#fff;}
.btn--primary:hover{background:var(--clay);color:#fff;}
.btn--ghost{background:transparent;border-color:var(--line);color:var(--green-900);}
.btn--ghost:hover{border-color:var(--line-strong);color:var(--clay);background:#fff;}
.btn--outline{background:#fff;border-color:var(--green-800);color:var(--green-900);}
.btn--outline:hover{background:var(--green-800);color:#fff;}
.btn--sm{height:38px;padding:0 16px;font-size:14px;}
.btn--lg{height:48px;padding:0 24px;}
.btn--phone{color:var(--green-900);font-variant-numeric:tabular-nums;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-weight:600;font-size:14.5px;color:var(--green-900);
}
.link-arrow span{transition:transform 180ms var(--ease);}
.link-arrow:hover{color:var(--clay);}
.link-arrow:hover span{transform:translateX(3px);}
.burger{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:#fff;
  align-items:center;justify-content:center;
  padding:0;
}
.burger span{display:block;width:18px;height:2px;background:var(--green-900);position:relative;}
.burger span::before,.burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--green-900);
}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}

/* ---------- 频道行 ---------- */
.channelbar{
  background:#fff;
  border-bottom:1px solid var(--line);
  position:sticky;
  top:0;
  z-index:50;
}
.channel-tabs{
  display:flex;
  align-items:center;
  gap:4px;
  min-height:48px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.channel-tabs::-webkit-scrollbar{display:none;}
.channel-tab{
  position:relative;
  flex:none;
  padding:0 14px;
  height:48px;
  display:inline-flex;
  align-items:center;
  font-size:15px;
  color:var(--text-2);
  border-radius:0;
  transition:color 180ms var(--ease);
}
.channel-tab::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:0;
  height:2px;
  background:var(--green-800);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform 200ms var(--ease);
}
.channel-tab:hover{color:var(--green-900);}
.channel-tab:hover::after{transform:scaleX(.6);}
.channel-tab.is-active{color:var(--green-900);font-weight:600;}
.channel-tab.is-active::after{transform:scaleX(1);}

/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;
  background:rgba(14,36,29,.45);
  opacity:0;visibility:hidden;
  transition:opacity 220ms var(--ease),visibility 220ms var(--ease);
  z-index:90;
}
.drawer{
  position:fixed;
  top:0;right:0;
  width:82%;max-width:360px;height:100%;
  background:#fff;
  transform:translateX(100%);
  transition:transform 260ms var(--ease);
  z-index:100;
  display:flex;flex-direction:column;
  padding:20px 20px 24px;
  overflow-y:auto;
}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer__close{
  width:38px;height:38px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#fff;
  font-size:18px;line-height:1;color:var(--green-900);
}
.drawer__list li + li{border-top:1px solid var(--line);}
.drawer__list a{
  display:block;
  padding:14px 2px;
  font-size:17px;
  color:var(--text);
}
.drawer__list a.is-active{color:var(--green-800);font-weight:600;}
.drawer__cta{margin-top:auto;padding-top:24px;display:grid;gap:10px;}
.drawer__tel{font-size:14px;color:var(--text-2);}
body.drawer-open{overflow:hidden;}
body.drawer-open .drawer{transform:translateX(0);}
body.drawer-open .drawer-mask{opacity:1;visibility:visible;}

/* ---------- 内页头图 ---------- */
.page-head{
  position:relative;
  background:var(--green-900);
  color:#fff;
  overflow:hidden;
  padding:56px 0 52px;
}
.page-head__bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  opacity:.55;
}
.page-head__bg::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(14,36,29,.94) 0%,rgba(14,36,29,.82) 46%,rgba(22,54,44,.52) 100%);
}
.page-head .container{position:relative;z-index:2;}
.crumb{
  font-size:13px;
  color:rgba(255,255,255,.62);
  display:flex;
  align-items:center;
  gap:8px;
  margin-bottom:22px;
  flex-wrap:wrap;
}
.crumb a{color:rgba(255,255,255,.78);}
.crumb a:hover{color:#fff;}
.crumb .sep{color:rgba(255,255,255,.32);}
.crumb .now{color:var(--clay-light);}
.page-head__grid{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:48px;
  align-items:end;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--clay-light);
  font-weight:600;
  margin-bottom:16px;
}
.eyebrow::before{
  content:"";width:4px;height:16px;background:var(--clay-light);display:inline-block;
}
.page-head h1{
  font-family:var(--serif);
  font-size:clamp(28px,4.2vw,44px);
  line-height:1.28;
  font-weight:700;
  letter-spacing:.01em;
  color:#fff;
}
.page-head h1 small{
  display:block;
  font-family:var(--sans);
  font-size:clamp(15px,1.6vw,18px);
  font-weight:500;
  letter-spacing:.01em;
  color:rgba(255,255,255,.82);
  margin-top:14px;
  line-height:1.7;
}
.page-head__lead{
  margin-top:18px;
  font-size:14.5px;
  line-height:1.8;
  color:rgba(255,255,255,.7);
  max-width:56ch;
}
.page-head__actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px;}
.page-head__actions .btn--primary{background:#fff;color:var(--green-900);}
.page-head__actions .btn--primary:hover{background:var(--clay-light);color:#fff;}
.page-head__actions .btn--ghost{border-color:rgba(255,255,255,.32);color:#fff;}
.page-head__actions .btn--ghost:hover{background:rgba(255,255,255,.10);color:#fff;border-color:rgba(255,255,255,.6);}

/* 头图数据条 */
.head-facts{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--r-card);
  overflow:hidden;
}
.head-facts div{
  background:rgba(14,36,29,.55);
  padding:16px 14px;
}
.head-facts b{
  display:block;
  font-family:var(--serif);
  font-size:22px;
  line-height:1.3;
  color:#fff;
  font-variant-numeric:tabular-nums;
}
.head-facts span{
  display:block;
  font-size:12.5px;
  color:rgba(255,255,255,.62);
  margin-top:4px;
}

/* ---------- 通用板块 ---------- */
.section{padding:72px 0;}
.section--tight{padding:56px 0;}
.section--paper{background:var(--paper-2);}
.section-head{margin-bottom:36px;max-width:760px;}
.section-head h2{
  font-size:clamp(22px,2.6vw,30px);
  line-height:1.35;
  font-weight:700;
  position:relative;
  padding-left:16px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;background:var(--green-800);border-radius:2px;
}
.section-head p{
  margin-top:14px;
  font-size:15px;
  color:var(--text-2);
  max-width:62ch;
}
.section-head--row{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;flex-wrap:wrap;
}

/* ---------- 时间轴 ---------- */
.timeline{
  position:relative;
  margin-top:8px;
  padding-left:36px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:7px;top:8px;bottom:8px;
  width:2px;
  background:linear-gradient(180deg,var(--green-800) 0%,var(--green-600) 62%,var(--line-strong) 100%);
  border-radius:2px;
}
.tl-item{
  position:relative;
  padding:0 0 32px 0;
}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";
  position:absolute;
  left:-36px;
  top:8px;
  width:14px;height:14px;
  border-radius:50%;
  background:var(--paper);
  border:2px solid var(--green-800);
  box-sizing:border-box;
  transform:translateX(1px);
  transition:background 200ms var(--ease),border-color 200ms var(--ease);
}
.tl-item.is-now::before{
  background:var(--clay);
  border-color:var(--clay);
  box-shadow:0 0 0 4px rgba(194,89,47,.14);
}
.tl-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px 24px;
  box-shadow:var(--shadow-1);
  transition:transform 200ms var(--ease),box-shadow 200ms var(--ease),border-color 200ms var(--ease);
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,.62fr);
  gap:20px;
  align-items:start;
}
.tl-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--line-strong);}
.tl-tag{
  display:inline-flex;align-items:center;
  height:24px;padding:0 10px;
  border-radius:var(--r-pill);
  background:rgba(22,54,44,.07);
  color:var(--green-800);
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.02em;
}
.tl-item.is-now .tl-tag{background:rgba(194,89,47,.12);color:var(--clay);}
.tl-card h3{
  font-size:19px;line-height:1.5;font-weight:600;margin:12px 0 10px;
}
.tl-card p{font-size:14.5px;line-height:1.8;color:var(--text-2);}
.tl-side{
  border-left:1px dashed var(--line);
  padding-left:20px;
}
.tl-side dt{
  font-size:12.5px;color:var(--muted);letter-spacing:.02em;margin-bottom:4px;
}
.tl-side dd{
  margin:0 0 12px;
  font-size:14px;color:var(--text);line-height:1.7;
}
.tl-side dd:last-child{margin-bottom:0;}
.tl-num{
  font-family:var(--serif);
  font-size:13px;
  color:var(--muted);
  letter-spacing:.14em;
  display:block;
  margin-bottom:2px;
}

/* ---------- 分工 5:7 ---------- */
.split{
  display:grid;
  grid-template-columns:minmax(0,5fr) minmax(0,7fr);
  gap:48px;
  align-items:start;
}
.split--rev{grid-template-columns:minmax(0,7fr) minmax(0,5fr);}
.split__figure{
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--paper-2);
  position:relative;
}
.split__figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;transition:transform 320ms var(--ease);}
.split__figure:hover img{transform:scale(1.03);}
.split__figure::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,36,29,0) 55%,rgba(14,36,29,.55) 100%);
  pointer-events:none;
}
.split__cap{
  position:absolute;
  left:18px;bottom:14px;
  z-index:2;
  font-size:12.5px;
  color:rgba(255,255,255,.9);
  letter-spacing:.02em;
}
.roles{display:grid;gap:0;}
.role{
  display:grid;
  grid-template-columns:52px minmax(0,1fr);
  gap:18px;
  padding:22px 0;
  border-bottom:1px dashed var(--line);
}
.role:first-child{padding-top:0;}
.role:last-child{border-bottom:0;padding-bottom:0;}
.role__no{
  font-family:var(--serif);
  font-size:19px;
  color:var(--green-600);
  letter-spacing:.06em;
  font-variant-numeric:tabular-nums;
  padding-top:2px;
}
.role h3{font-size:17px;line-height:1.5;font-weight:600;margin-bottom:6px;}
.role p{font-size:14.5px;line-height:1.8;color:var(--text-2);}

/* ---------- 交付物清单 ---------- */
.deliver-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
}
.deliver{
  background:#fff;
  padding:24px;
  transition:background 200ms var(--ease);
}
.deliver:hover{background:#FBF8F2;}
.deliver__k{
  font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--muted);font-weight:600;
}
.deliver h3{font-size:17px;font-weight:600;margin:10px 0 8px;line-height:1.5;}
.deliver p{font-size:14px;line-height:1.78;color:var(--text-2);}
.deliver ul{margin-top:10px;display:grid;gap:6px;}
.deliver li{
  position:relative;
  padding-left:16px;
  font-size:13.5px;
  color:var(--text-2);
  line-height:1.7;
}
.deliver li::before{
  content:"";position:absolute;left:0;top:.62em;width:6px;height:6px;border-radius:50%;background:var(--green-600);
}

/* ---------- 深色节奏条 ---------- */
.rhythm{
  background:var(--green-900);
  color:#fff;
  padding:64px 0;
}
.rhythm__grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:0;
  margin-top:34px;
}
.rhythm__cell{
  padding:0 26px;
  border-left:1px solid rgba(255,255,255,.14);
}
.rhythm__cell:first-child{border-left:0;padding-left:0;}
.rhythm__cell b{
  display:block;
  font-family:var(--serif);
  font-size:clamp(32px,4vw,46px);
  line-height:1.15;
  font-variant-numeric:tabular-nums;
}
.rhythm__cell b i{font-style:normal;font-size:16px;font-family:var(--sans);font-weight:600;margin-left:4px;color:rgba(255,255,255,.7);}
.rhythm__cell span{
  display:block;margin-top:10px;font-size:13.5px;color:rgba(255,255,255,.66);line-height:1.7;
}
.rhythm h2{
  font-size:clamp(22px,2.6vw,30px);line-height:1.35;font-weight:700;color:#fff;
}
.rhythm__lead{margin-top:12px;font-size:15px;color:rgba(255,255,255,.7);max-width:60ch;}

/* ---------- 规格 / 验收 ---------- */
.spec-strip{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
}
.spec{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--shadow-1);
  transition:transform 200ms var(--ease),box-shadow 200ms var(--ease),border-color 200ms var(--ease);
}
.spec:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--line-strong);}
.spec__badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--r-pill);
  background:rgba(22,54,44,.07);
  color:var(--green-800);
  font-size:12.5px;font-weight:600;
}
.spec h3{font-size:18px;font-weight:600;line-height:1.5;margin:12px 0 8px;}
.spec p{font-size:14.5px;color:var(--text-2);line-height:1.8;}
.spec .bar{
  margin-top:16px;height:6px;border-radius:999px;background:var(--paper-2);overflow:hidden;
}
.spec .bar i{display:block;height:100%;background:var(--green-600);border-radius:999px;}
.spec .bar-meta{
  display:flex;justify-content:space-between;font-size:12.5px;color:var(--muted);margin-top:8px;
}

/* ---------- FAQ ---------- */
.faq{border-top:2px solid var(--green-800);margin-top:8px;}
.faq details{border-bottom:1px solid var(--line);}
.faq summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:flex-start;
  gap:16px;
  padding:20px 0;
  font-size:16.5px;
  font-weight:600;
  line-height:1.6;
  color:var(--text);
  transition:color 180ms var(--ease);
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary:hover{color:var(--green-800);}
.faq details[open] summary{color:var(--green-800);}
.faq .idx{
  flex:none;
  font-family:var(--serif);
  font-size:13px;
  letter-spacing:.12em;
  color:var(--muted);
  padding-top:4px;
  font-variant-numeric:tabular-nums;
}
.faq .sign{
  flex:none;
  margin-left:auto;
  width:22px;height:22px;
  border:1px solid var(--line-strong);
  border-radius:50%;
  position:relative;
  margin-top:2px;
  transition:transform 200ms var(--ease),border-color 200ms var(--ease);
}
.faq .sign::before,.faq .sign::after{
  content:"";position:absolute;background:var(--green-800);left:50%;top:50%;
}
.faq .sign::before{width:10px;height:1.5px;transform:translate(-50%,-50%);}
.faq .sign::after{width:1.5px;height:10px;transform:translate(-50%,-50%);transition:opacity 200ms var(--ease);}
.faq details[open] .sign::after{opacity:0;}
.faq .ans{
  padding:0 38px 22px 40px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
}

/* ---------- CTA 表单 ---------- */
.cta-block{
  background:var(--paper-2);
  border-radius:var(--r-block);
  padding:48px;
  display:grid;
  grid-template-columns:minmax(0,6fr) minmax(0,6fr);
  gap:48px;
}
.cta-block h2{
  font-size:clamp(22px,2.6vw,30px);
  line-height:1.35;
  font-weight:700;
}
.cta-block .lead{margin-top:14px;font-size:15px;color:var(--text-2);line-height:1.85;}
.cta-points{margin-top:24px;display:grid;gap:12px;}
.cta-points li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14.5px;color:var(--text-2);
}
.cta-points svg{
  flex:none;width:18px;height:18px;margin-top:4px;stroke:var(--ok);fill:none;stroke-width:1.8;
}
.form{display:grid;gap:16px;}
.field{display:grid;gap:6px;}
.field label{font-size:14px;font-weight:600;color:var(--text);}
.field input,.field textarea{
  width:100%;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:#fff;
  padding:0 14px;
  height:46px;
  transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.field textarea{height:104px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input:focus,.field textarea:focus{
  border-color:var(--green-800);
  box-shadow:0 0 0 3px rgba(22,54,44,.10);
  outline:none;
}
.form .btn{width:100%;}
.form-note{font-size:12.5px;color:var(--muted);line-height:1.7;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--green-900);
  color:#fff;
  padding:64px 0 0;
  margin-top:72px;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,5fr) repeat(3,minmax(0,2.3fr));
  gap:40px;
  padding-bottom:44px;
}
.footer-brand .logo__mark{color:#fff;}
.footer-brand .logo__cn{color:rgba(255,255,255,.72);border-left-color:rgba(255,255,255,.2);}
.footer-brand .logo__dot{color:rgba(255,255,255,.5);}
.footer-desc{
  margin-top:18px;
  font-size:14px;
  line-height:1.85;
  color:rgba(255,255,255,.68);
  max-width:38ch;
}
.footer-contact{margin-top:18px;display:grid;gap:8px;font-size:14px;color:rgba(255,255,255,.68);}
.footer-contact a{color:rgba(255,255,255,.88);}
.footer-contact a:hover{color:#fff;text-decoration:underline;}
.footer-col h3{
  font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;
  letter-spacing:.02em;
}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-col a:hover{color:#fff;text-decoration:underline;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:20px 0 28px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .topbar__search{display:none;}
  .page-head__grid{grid-template-columns:1fr;gap:32px;}
  .head-facts{grid-template-columns:repeat(2,1fr);}
  .split,.split--rev{grid-template-columns:1fr;gap:32px;}
  .deliver-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .rhythm__grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:rgba(255,255,255,.14);}
  .rhythm__cell{padding:22px 20px;border-left:0;background:rgba(14,36,29,.6);}
  .rhythm__cell:first-child{padding-left:20px;}
  .cta-block{grid-template-columns:1fr;gap:32px;padding:36px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
  .tl-card{grid-template-columns:1fr;gap:16px;}
  .tl-side{border-left:0;padding-left:0;border-top:1px dashed var(--line);padding-top:14px;}
  .section{padding:56px 0;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .topbar__inner{min-height:56px;gap:12px;}
  .logo__dot{display:none;}
  .topbar__actions .btn--phone{display:none;}
  .burger{display:inline-flex;}
  .channel-tab{height:44px;font-size:14.5px;padding:0 12px;}
  .channel-tab::after{left:12px;right:12px;}
  .page-head{padding:40px 0 36px;}
  .page-head__actions .btn{flex:1 1 auto;}
  .head-facts div{padding:14px 12px;}
  .section{padding:40px 0;}
  .section-head{margin-bottom:26px;}
  .timeline{padding-left:24px;}
  .timeline::before{left:5px;}
  .tl-item::before{left:-24px;width:12px;height:12px;}
  .tl-card{padding:18px;}
  .deliver-grid{grid-template-columns:1fr;}
  .spec-strip{grid-template-columns:1fr;}
  .rhythm__grid{grid-template-columns:1fr;}
  .cta-block{padding:24px;border-radius:16px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;font-size:12.5px;}
  .faq .ans{padding:0 0 20px 34px;}
  .role{grid-template-columns:40px minmax(0,1fr);gap:12px;}
}
@media (max-width:420px){
  .topbar__actions .btn--primary{padding:0 14px;font-size:14px;height:38px;}
  .logo__mark{font-size:17px;}
  .logo__cn{font-size:13px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
  .tl-card:hover,.spec:hover{transform:none;}
  .split__figure:hover img{transform:none;}
}

/* roulang page: category5 */
:root{
  --ink:#16362C; --ink-deep:#0E241D; --ink-soft:#2C5A49;
  --clay:#C2592F; --clay-soft:#E08B5F;
  --paper:#F7F3EB; --paper-2:#EFE9DE; --card:#FFFFFF;
  --line:#E2DACB; --line-strong:#CFC5B2;
  --text:#1F2420; --text-2:#5C6259; --text-3:#8A8F86;
  --ok:#2F7D5B; --warn:#B4551F; --err:#A83A2B; --info:#3F6B77;
  --r-card:14px; --r-img:10px; --r-btn:10px; --r-lg:20px; --r-pill:999px;
  --shadow:0 1px 2px rgba(22,54,44,.06);
  --shadow-hover:0 10px 26px -14px rgba(22,54,44,.28);
  --sans:'Noto Sans SC','Source Han Sans SC','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  --serif:'Noto Serif SC','Songti SC',serif;
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:180ms;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--paper);color:var(--text);
  font-family:var(--sans);font-size:16px;line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--ink-deep);text-decoration:none;transition:color var(--t) var(--ease)}
a:hover{color:var(--clay)}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
input,textarea,select{font-family:inherit;font-size:15px;color:var(--text)}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1280px}}

/* ============ 顶部品牌行 ============ */
.site-header{position:relative;z-index:60;background:#fff}
.brandbar{background:#fff;border-bottom:1px solid var(--line)}
.brandbar__inner{display:flex;align-items:center;gap:20px;min-height:64px}
.logo{display:inline-flex;align-items:baseline;gap:10px;flex:none}
.logo__mark{font-size:20px;font-weight:700;letter-spacing:.14em;color:var(--ink-deep);font-variant-numeric:tabular-nums}
.logo__cn{font-size:14px;font-weight:600;color:var(--ink);letter-spacing:.08em}
.logo__dot{font-size:12px;color:var(--text-3);letter-spacing:.1em}
.searchbox{
  flex:1 1 auto;max-width:320px;display:flex;align-items:center;gap:8px;
  background:var(--paper-2);border:1px solid transparent;border-radius:var(--r-pill);
  padding:0 14px;height:40px;transition:background var(--t) var(--ease),border-color var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.searchbox svg{flex:none;color:var(--text-3)}
.searchbox input{border:0;background:transparent;outline:none;width:100%;height:100%;font-size:14px}
.searchbox input::placeholder{color:var(--text-3)}
.searchbox:focus-within{background:#fff;border-color:var(--ink);box-shadow:0 0 0 3px rgba(22,54,44,.10)}
.brandbar__actions{margin-left:auto;display:flex;align-items:center;gap:10px;flex:none}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.01em;white-space:nowrap;
  transition:background var(--t) var(--ease),color var(--t) var(--ease),border-color var(--t) var(--ease),transform var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.btn:active{transform:translateY(1px)}
.btn--primary{background:var(--ink);color:#fff}
.btn--primary:hover{background:var(--clay);color:#fff}
.btn--outline{background:#fff;color:var(--ink);border-color:var(--line-strong)}
.btn--outline:hover{border-color:var(--ink);color:var(--ink-deep);background:var(--paper)}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn--ghost:hover{border-color:var(--ink);color:var(--ink-deep)}
.btn--sm{height:38px;padding:0 16px;font-size:14px}
.btn--lg{height:48px;padding:0 26px;font-size:16px}
.btn--block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:14.5px;color:var(--ink)}
.link-arrow svg{transition:transform var(--t) var(--ease)}
.link-arrow:hover svg{transform:translateX(3px)}

/* ============ 频道行 ============ */
.channelbar{
  position:sticky;top:0;z-index:50;background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 0 rgba(22,54,44,0);
  transition:box-shadow var(--t) var(--ease);
}
.channelbar.is-stuck{box-shadow:0 6px 18px -14px rgba(22,54,44,.55)}
.channel-tabs{display:flex;align-items:center;gap:4px;height:48px;overflow-x:auto;scrollbar-width:none}
.channel-tabs::-webkit-scrollbar{display:none}
.channel-tab{
  position:relative;display:inline-flex;align-items:center;height:48px;padding:0 14px;
  font-size:15px;font-weight:500;color:var(--text-2);white-space:nowrap;
  transition:color var(--t) var(--ease);
}
.channel-tab::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;
  background:var(--ink);transform:scaleX(0);transform-origin:left;
  transition:transform var(--t) var(--ease);
}
.channel-tab:hover{color:var(--ink)}
.channel-tab:hover::after{transform:scaleX(.6)}
.channel-tab.is-active{color:var(--ink-deep);font-weight:700}
.channel-tab.is-active::after{transform:scaleX(1)}

/* ============ 移动抽屉 ============ */
.burger{
  display:none;width:40px;height:40px;border:1px solid var(--line);background:#fff;border-radius:10px;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;padding:0;
}
.burger span{display:block;width:16px;height:2px;background:var(--ink);border-radius:2px;transition:transform var(--t) var(--ease),opacity var(--t) var(--ease)}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(360px,84vw);background:#fff;z-index:90;
  transform:translateX(102%);transition:transform 240ms var(--ease);
  display:flex;flex-direction:column;padding:24px 22px;overflow-y:auto;
  box-shadow:-18px 0 40px -26px rgba(14,36,29,.5);
}
.drawer.is-open{transform:none}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer__close{width:36px;height:36px;border:1px solid var(--line);background:#fff;border-radius:10px;font-size:18px;line-height:1;color:var(--ink)}
.drawer__link{display:block;padding:13px 0;font-size:17px;font-weight:600;color:var(--ink-deep);border-bottom:1px solid var(--line)}
.drawer__link.is-active{color:var(--clay)}
.drawer__foot{margin-top:auto;padding-top:22px;display:grid;gap:12px}
.drawer__tel{font-family:var(--serif);font-size:20px;color:var(--ink-deep);letter-spacing:.02em}
.drawer__note{font-size:13px;color:var(--text-3);line-height:1.7}
.mask{position:fixed;inset:0;background:rgba(14,36,29,.45);opacity:0;pointer-events:none;transition:opacity 240ms var(--ease);z-index:80}
.mask.is-open{opacity:1;pointer-events:auto}
body.no-scroll{overflow:hidden}

/* ============ 通用板块 ============ */
.section{padding:72px 0}
.section--tight{padding:56px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;
  letter-spacing:.14em;text-transform:uppercase;color:var(--ink);
}
.eyebrow::before{content:"";width:4px;height:16px;background:var(--ink);border-radius:2px}
h2{font-size:clamp(22px,2.6vw,30px);line-height:1.35;font-weight:700;letter-spacing:.01em;color:var(--text)}
h2 .rule{display:block;width:40px;height:1px;background:var(--ink);margin-top:14px}
h3{font-size:19px;line-height:1.5;font-weight:600;color:var(--text)}
.lead{font-size:15px;line-height:1.9;color:var(--text-2);max-width:62ch}
.pill{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;color:var(--ink-deep);background:var(--paper-2);border:1px solid var(--line);
  white-space:nowrap;
}
.pill--solid{background:var(--ink);color:#fff;border-color:var(--ink)}
.pill--clay{background:rgba(194,89,47,.10);color:var(--clay);border-color:rgba(194,89,47,.28)}

/* ============ 页首 ============ */
.page-hero{padding:56px 0 0;background:
  radial-gradient(760px 320px at 88% -10%, rgba(44,90,73,.10), transparent 70%), var(--paper);}
.page-hero__grid{display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:center}
.crumb{font-size:13px;color:var(--text-3);margin-bottom:18px}
.crumb a{color:var(--text-3)}
.crumb a:hover{color:var(--ink)}
.crumb span{color:var(--ink);font-weight:600}
.page-hero h1{
  font-family:var(--serif);font-size:clamp(28px,4vw,42px);line-height:1.28;font-weight:700;
  letter-spacing:.01em;color:var(--text);margin:14px 0 16px;max-width:20ch;
}
.page-hero__desc{font-size:15px;line-height:1.9;color:var(--text-2);max-width:54ch}
.page-hero__meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.page-hero__figure{position:relative;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:var(--paper-2)}
.page-hero__figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg);transition:transform 420ms var(--ease)}
.page-hero__figure:hover img{transform:scale(1.03)}
.page-hero__figure figcaption{
  position:absolute;left:14px;bottom:14px;right:14px;padding:9px 14px;border-radius:var(--r-pill);
  background:rgba(14,36,29,.78);color:#fff;font-size:12.5px;line-height:1.5;backdrop-filter:none;
}

/* ============ 规格卡 ============ */
.specs{margin-top:56px}
.spec-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.spec-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:10px;
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease),border-color var(--t) var(--ease);
}
.spec-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.spec-card--pick{border:2px solid var(--ink);background:#fff}
.spec-card__no{font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--clay);font-variant-numeric:tabular-nums}
.spec-card__name{font-size:15px;font-weight:600;color:var(--ink-deep);letter-spacing:.02em}
.spec-card__value{font-family:var(--serif);font-size:30px;line-height:1.2;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums}
.spec-card__value small{font-family:var(--sans);font-size:13px;font-weight:600;color:var(--text-2);margin-left:6px}
.spec-card__note{font-size:14px;line-height:1.75;color:var(--text-2);flex:1}
.spec-card__tags{display:flex;flex-wrap:wrap;gap:6px}

/* ============ 对比表 ============ */
.compare-sec{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.compare-head{display:grid;grid-template-columns:5fr 7fr;gap:28px;align-items:end;margin-bottom:26px}
.table-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:auto;box-shadow:var(--shadow)}
table.cmp{width:100%;min-width:780px;border-collapse:collapse;font-size:14.5px}
table.cmp thead th{
  background:var(--paper-2);color:var(--ink-deep);font-size:14px;font-weight:700;
  text-align:left;padding:15px 18px;border-bottom:1px solid var(--line-strong);white-space:nowrap;
}
table.cmp thead th:nth-child(2){color:var(--ink);box-shadow:inset 0 3px 0 var(--ink)}
table.cmp tbody th{
  text-align:left;font-weight:700;color:var(--text);padding:14px 18px;
  border-bottom:1px solid var(--line);white-space:nowrap;
}
table.cmp tbody td{padding:14px 18px;border-bottom:1px solid var(--line);color:var(--text-2);line-height:1.7}
table.cmp tbody tr:nth-child(even) th,table.cmp tbody tr:nth-child(even) td{background:#FBFAF6}
table.cmp tbody tr:last-child th,table.cmp tbody tr:last-child td{border-bottom:0}
table.cmp tbody tr:hover th,table.cmp tbody tr:hover td{background:var(--paper)}
table.cmp em{font-style:normal;color:var(--ink);font-weight:600}
.table-note{font-size:13px;color:var(--text-3);margin-top:12px}

/* ============ 支持范围（不对称） ============ */
.scope-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start}
.scope-aside{position:sticky;top:96px}
.scope-list{display:grid;gap:0}
.scope-item{
  display:grid;grid-template-columns:52px 1fr auto;gap:16px;align-items:start;
  padding:20px 4px;border-bottom:1px dashed var(--line-strong);transition:background var(--t) var(--ease);
}
.scope-item:first-child{border-top:1px dashed var(--line-strong)}
.scope-item:hover{background:rgba(239,233,222,.5)}
.scope-item__no{font-family:var(--serif);font-size:18px;font-weight:700;color:var(--ink-soft);font-variant-numeric:tabular-nums;line-height:1.5}
.scope-item__body h3{font-size:16.5px;font-weight:600;margin-bottom:6px;color:var(--ink-deep)}
.scope-item__body p{font-size:14.5px;line-height:1.8;color:var(--text-2)}

/* ============ 流程条 ============ */
.flow-sec{background:var(--ink-deep);color:#fff;padding:64px 0}
.flow-sec h2,.flow-sec .lead{color:#fff}
.flow-sec .lead{color:rgba(255,255,255,.72)}
.flow-sec .eyebrow{color:#fff}
.flow-sec .eyebrow::before{background:var(--clay-soft)}
.flow-sec h2 .rule{background:rgba(255,255,255,.5)}
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:34px;border-top:1px solid rgba(255,255,255,.16)}
.flow-step{padding:26px 22px 4px 0;border-right:1px solid rgba(255,255,255,.14);position:relative}
.flow-step:last-child{border-right:0}
.flow-step::before{
  content:"";position:absolute;top:-5px;left:0;width:9px;height:9px;border-radius:50%;
  background:var(--ink-deep);border:2px solid var(--clay-soft);
}
.flow-step__no{font-size:12px;letter-spacing:.14em;font-weight:700;color:var(--clay-soft);font-variant-numeric:tabular-nums}
.flow-step h3{font-size:17px;color:#fff;margin:8px 0 8px}
.flow-step p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72)}

/* ============ FAQ ============ */
.faq{max-width:900px}
.faq details{border-bottom:1px solid var(--line);padding:0}
.faq details:first-of-type{border-top:2px solid var(--ink)}
.faq summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;gap:16px;
  padding:20px 0;font-size:17px;font-weight:600;color:var(--ink-deep);line-height:1.6;
  transition:color var(--t) var(--ease);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary .faq-no{font-family:var(--serif);font-size:15px;font-weight:700;color:var(--text-3);flex:none;width:28px;font-variant-numeric:tabular-nums}
.faq summary .faq-ico{margin-left:auto;flex:none;width:22px;height:22px;position:relative;top:2px}
.faq summary .faq-ico::before,.faq summary .faq-ico::after{
  content:"";position:absolute;background:var(--ink);border-radius:2px;transition:transform var(--t) var(--ease),opacity var(--t) var(--ease);
}
.faq summary .faq-ico::before{left:0;right:0;top:10px;height:1.5px}
.faq summary .faq-ico::after{top:0;bottom:0;left:10px;width:1.5px}
.faq details[open] summary{color:var(--clay)}
.faq details[open] summary .faq-ico::after{transform:scaleY(0);opacity:0}
.faq details[open] summary .faq-no{color:var(--clay)}
.faq .faq-answer{padding:0 0 22px 44px;font-size:15px;line-height:1.85;color:var(--text-2);max-width:70ch}

/* ============ CTA / 表单 ============ */
.cta-sec{padding:72px 0}
.cta-box{
  position:relative;overflow:hidden;border-radius:var(--r-lg);border:1px solid var(--line-strong);
  background:var(--paper-2) url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  padding:48px;display:grid;grid-template-columns:1fr 1fr;gap:44px;
}
.cta-box::before{content:"";position:absolute;inset:0;background:rgba(239,233,222,.94)}
.cta-box>*{position:relative}
.cta-box h2{max-width:16ch}
.cta-points{display:grid;gap:12px;margin:22px 0 26px}
.cta-points li{display:flex;gap:10px;font-size:14.5px;line-height:1.75;color:var(--text-2)}
.cta-points svg{flex:none;margin-top:4px;color:var(--ok)}
.cta-tel{display:flex;flex-direction:column;gap:4px;padding-top:20px;border-top:1px solid var(--line-strong);max-width:280px}
.cta-tel span{font-size:13px;color:var(--text-3)}
.cta-tel a{font-family:var(--serif);font-size:24px;font-weight:700;color:var(--ink-deep);letter-spacing:.02em}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--shadow)}
.field{display:grid;gap:7px;margin-bottom:16px}
.field label{font-size:14px;font-weight:600;color:var(--ink-deep)}
.field input,.field textarea{
  height:46px;padding:0 14px;border:1px solid var(--line-strong);border-radius:var(--r-btn);
  background:#fff;outline:none;transition:border-color var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input:focus,.field textarea:focus{border-color:var(--ink);box-shadow:0 0 0 3px rgba(22,54,44,.10)}
.field__hint{font-size:13px;color:var(--text-3)}
.form-note{font-size:13px;color:var(--text-3);margin-top:12px;line-height:1.7}
.form-msg{display:none;margin-top:12px;font-size:13.5px;color:var(--ok)}
.form-msg.is-show{display:block}
.btn.is-loading{opacity:.7;pointer-events:none}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-deep);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand .logo__mark{color:#fff}
.footer-brand .logo__cn{color:rgba(255,255,255,.86)}
.footer-brand .logo__dot{color:rgba(255,255,255,.5)}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);max-width:38ch;margin-bottom:18px}
.footer-contact{display:grid;gap:6px;font-size:14px;color:rgba(255,255,255,.68)}
.footer-contact a{color:rgba(255,255,255,.86)}
.footer-contact a:hover{color:#fff}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72)}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0 28px;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .spec-grid{grid-template-columns:repeat(2,1fr)}
  .scope-grid{grid-template-columns:5fr 7fr;gap:32px}
}
@media (max-width:1023px){
  .brandbar__inner{min-height:60px;gap:14px}
  .searchbox{max-width:220px}
  .phone-link{display:none}
  .page-hero__grid{grid-template-columns:1fr;gap:28px}
  .page-hero h1{max-width:none}
  .page-hero__figure{max-width:560px}
  .compare-head{grid-template-columns:1fr;gap:14px;align-items:start}
  .scope-grid{grid-template-columns:1fr}
  .scope-aside{position:static}
  .flow{grid-template-columns:repeat(2,1fr);border-top:0}
  .flow-step{border-right:0;border-top:1px solid rgba(255,255,255,.16);padding:22px 18px 8px 0}
  .flow-step::before{display:none}
  .cta-box{grid-template-columns:1fr;padding:34px;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:56px 0}
  .section--tight{padding:44px 0}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .brandbar__inner{min-height:56px;gap:10px}
  .logo__cn,.logo__dot{display:none}
  .searchbox{display:none}
  .burger{display:inline-flex}
  .brandbar__actions .btn--primary{padding:0 14px;font-size:14px}
  .channel-tab{font-size:14px;padding:0 12px}
  .channel-tabs{height:46px}
  .channel-tab{height:46px}
  .page-hero{padding-top:36px}
  .page-hero h1{font-size:clamp(26px,7vw,32px)}
  .specs{margin-top:36px}
  .spec-grid{grid-template-columns:1fr;gap:14px}
  .spec-card{padding:20px}
  .spec-card__value{font-size:26px}
  .table-wrap{border-radius:12px}
  table.cmp{min-width:640px}
  table.cmp thead th:first-child,table.cmp tbody th{position:sticky;left:0;z-index:2;background:#fff}
  table.cmp thead th:first-child{background:var(--paper-2);z-index:3}
  table.cmp tbody tr:nth-child(even) th{background:#FBFAF6}
  .scope-item{grid-template-columns:38px 1fr;gap:12px}
  .scope-item .pill{display:none}
  .flow{padding-top:6px}
  .flow-step{padding-right:10px}
  .flow-sec{padding:44px 0}
  .faq summary{font-size:16px;padding:16px 0}
  .faq .faq-answer{padding-left:0;padding-bottom:18px}
  .cta-box{padding:24px;border-radius:16px}
  .cta-tel a{font-size:20px}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .section{padding:44px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .btn{height:44px}
}
@media (max-width:420px){
  .spec-card__value{font-size:24px}
  .page-hero h1{font-size:25px}
  .brandbar__actions .btn--primary{display:none}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .spec-card:hover,.page-hero__figure:hover img{transform:none}
}

/* roulang page: category6 */
:root{
  --ink:#16362C;
  --ink-deep:#0E241D;
  --ink-light:#2C5A49;
  --clay:#C2592F;
  --clay-light:#E08B5F;
  --paper:#F7F3EB;
  --paper-2:#EFE9DE;
  --white:#FFFFFF;
  --line:#E2DACB;
  --line-strong:#CFC5B2;
  --text:#1F2420;
  --muted:#5C6259;
  --faint:#8A8F86;
  --ok:#2F7D5B;
  --warn:#B4551F;
  --radius-card:14px;
  --radius-img:10px;
  --radius-btn:10px;
  --radius-block:20px;
  --shadow-sm:0 1px 2px rgba(22,54,44,.06);
  --shadow-md:0 10px 26px -14px rgba(22,54,44,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t-fast:180ms;
  --t-base:240ms;
  --font-sans:'Noto Sans SC','Source Han Sans SC','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  --font-serif:'Noto Serif SC','Songti SC',serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--ink-deep);text-decoration:none;transition:color var(--t-fast) var(--ease);}
a:hover{color:var(--clay);}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1440px){.container{max-width:1280px;}}
@media (max-width:767px){.container{padding:0 16px;}}

/* ---------- 品牌行 ---------- */
.brandbar{background:var(--white);border-bottom:1px solid var(--line);position:relative;z-index:50;}
.brandbar__inner{display:flex;align-items:center;gap:20px;height:64px;}
.logo{display:inline-flex;align-items:baseline;gap:10px;flex-shrink:0;}
.logo__mark{font-size:20px;font-weight:700;letter-spacing:.14em;color:var(--ink-deep);font-variant-numeric:tabular-nums;}
.logo__cn{font-size:14px;font-weight:600;color:var(--text);letter-spacing:.04em;}
.logo__dot{font-size:12px;color:var(--faint);letter-spacing:.08em;}
.logo:hover .logo__mark{color:var(--clay);}
.search{
  display:flex;align-items:center;gap:8px;
  width:288px;height:40px;padding:0 14px;
  background:var(--paper-2);border:1px solid transparent;border-radius:999px;
  transition:background var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease),box-shadow var(--t-fast) var(--ease);
}
.search svg{flex:0 0 auto;color:var(--faint);}
.search input{width:100%;border:0;background:transparent;font-size:14px;outline:none;}
.search input::placeholder{color:var(--faint);}
.search:focus-within{background:var(--white);border-color:var(--ink-light);box-shadow:0 0 0 3px rgba(22,54,44,.10);}
.brandbar__actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.tel-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--ink);font-variant-numeric:tabular-nums;}
.tel-link:hover{color:var(--clay);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;
  transition:background var(--t-base) var(--ease),color var(--t-base) var(--ease),border-color var(--t-base) var(--ease),transform var(--t-fast) var(--ease),box-shadow var(--t-base) var(--ease);
}
.btn:active{transform:translateY(1px);}
.btn--primary{background:var(--ink);color:var(--white);border:1px solid var(--ink);}
.btn--primary:hover{background:var(--clay);border-color:var(--clay);color:var(--white);box-shadow:var(--shadow-md);}
.btn--line{background:transparent;color:var(--ink);border:1px solid var(--line-strong);}
.btn--line:hover{background:var(--white);border-color:var(--ink);color:var(--ink-deep);}
.btn--ghost{background:transparent;color:var(--ink);border:1px solid var(--line);}
.btn--ghost:hover{border-color:var(--ink-light);color:var(--ink-deep);}
.btn--sm{height:38px;padding:0 16px;font-size:14px;}
.btn--block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;}
.textlink{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--ink);}
.textlink span.arrow{transition:transform var(--t-base) var(--ease);display:inline-block;}
.textlink:hover{color:var(--clay);}
.textlink:hover span.arrow{transform:translateX(3px);}
.burger{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);align-items:center;justify-content:center;color:var(--ink);}
.burger:hover{border-color:var(--ink-light);background:var(--paper-2);}

/* ---------- 频道行 ---------- */
.channelbar{
  position:sticky;top:0;z-index:40;
  background:var(--white);
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 0 rgba(22,54,44,.04);
}
.channelbar .container{display:flex;align-items:center;}
.channel-tabs{display:flex;align-items:center;gap:6px;height:48px;overflow-x:auto;-ms-overflow-style:none;scrollbar-width:none;}
.channel-tabs::-webkit-scrollbar{display:none;}
.channel-tab{
  position:relative;display:inline-flex;align-items:center;height:48px;padding:0 14px;
  font-size:15px;font-weight:500;color:var(--muted);white-space:nowrap;
  transition:color var(--t-fast) var(--ease);
}
.channel-tab::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;
  background:var(--ink);border-radius:2px;transform:scaleX(0);transform-origin:center;
  transition:transform var(--t-base) var(--ease);
}
.channel-tab:hover{color:var(--ink);}
.channel-tab:hover::after{transform:scaleX(.6);opacity:.6;}
.channel-tab.is-active{color:var(--ink-deep);font-weight:600;}
.channel-tab.is-active::after{transform:scaleX(1);}

/* ---------- 抽屉 ---------- */
.drawer{position:fixed;inset:0;z-index:80;display:none;}
.drawer.is-open{display:block;}
.drawer__mask{position:absolute;inset:0;background:rgba(14,36,29,.45);}
.drawer__panel{
  position:absolute;top:0;right:0;bottom:0;width:80%;max-width:360px;
  background:var(--white);padding:24px 22px;display:flex;flex-direction:column;
  box-shadow:-20px 0 40px -20px rgba(14,36,29,.4);
  animation:slideIn var(--t-base) var(--ease);
}
@keyframes slideIn{from{transform:translateX(24px);opacity:.4;}to{transform:translateX(0);opacity:1;}}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer__close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--ink);}
.drawer__close:hover{background:var(--paper-2);}
.drawer__nav{display:flex;flex-direction:column;gap:2px;}
.drawer__nav a{font-size:17px;padding:12px 8px;border-radius:10px;color:var(--text);font-weight:500;}
.drawer__nav a:hover{background:var(--paper-2);color:var(--ink-deep);}
.drawer__nav a.is-active{color:var(--ink-deep);font-weight:700;background:var(--paper-2);}
.drawer__foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:12px;font-size:14px;color:var(--muted);}
.drawer__foot strong{color:var(--ink-deep);font-size:18px;letter-spacing:.04em;font-variant-numeric:tabular-nums;}
body.locked{overflow:hidden;}

/* ---------- 面包屑 ---------- */
.crumbs{padding:22px 0 0;font-size:13px;color:var(--faint);}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.crumbs li{display:flex;align-items:center;gap:8px;}
.crumbs li+li::before{content:"/";color:var(--line-strong);}
.crumbs a{color:var(--faint);}
.crumbs a:hover{color:var(--clay);}
.crumbs .current{color:var(--ink);font-weight:600;}

/* ---------- Hero ---------- */
.hero{padding:32px 0 0;}
.hero__grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:end;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--ink-light);font-weight:600;margin-bottom:16px;
}
.eyebrow::before{content:"";width:4px;height:16px;background:var(--ink);border-radius:2px;display:inline-block;}
.hero h1{
  font-family:var(--font-serif);
  font-size:clamp(28px,4.2vw,44px);line-height:1.28;font-weight:700;letter-spacing:.01em;
  color:var(--ink-deep);max-width:14em;
}
.hero__lead{margin-top:18px;font-size:14.5px;line-height:1.85;color:var(--muted);max-width:34em;}
.hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero__meta{display:flex;flex-wrap:wrap;gap:0;margin-top:30px;border-top:1px solid var(--line);padding-top:20px;}
.hero__meta div{flex:1 1 0;min-width:120px;padding-right:18px;border-right:1px solid var(--line);}
.hero__meta div:last-child{border-right:0;}
.hero__meta strong{display:block;font-family:var(--font-serif);font-size:22px;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1.3;}
.hero__meta span{font-size:13px;color:var(--faint);}
.hero__figure{position:relative;border-radius:var(--radius-block);overflow:hidden;box-shadow:var(--shadow-sm);}
.hero__figure img{width:100%;height:340px;object-fit:cover;border-radius:var(--radius-block);}
.hero__figure::after{content:"";position:absolute;inset:0;background:linear-gradient(200deg,rgba(22,54,44,.10),rgba(22,54,44,.42));}
.hero__figure figcaption{
  position:absolute;left:20px;right:20px;bottom:18px;z-index:2;
  color:rgba(255,255,255,.92);font-size:13px;line-height:1.7;
  border-left:2px solid var(--clay-light);padding-left:12px;
}

/* ---------- 通用板块 ---------- */
.section{padding:72px 0;}
.section--tight{padding:56px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px;}
.section-head h2{
  position:relative;padding-left:16px;
  font-size:clamp(22px,2.6vw,30px);line-height:1.35;font-weight:700;color:var(--ink-deep);
}
.section-head h2::before{content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:3px;background:var(--ink);border-radius:2px;}
.section-head p{margin-top:8px;font-size:14.5px;color:var(--muted);padding-left:16px;max-width:46em;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 12px;border-radius:999px;
  font-size:13px;font-weight:600;letter-spacing:.02em;
  background:rgba(44,90,73,.10);color:var(--ink);
}
.badge--line{background:transparent;border:1px solid var(--line-strong);color:var(--muted);}
.badge--clay{background:rgba(194,89,47,.12);color:var(--clay);}

/* ---------- 答疑渠道条 ---------- */
.channels{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.channel-list{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line-strong);}
.channel-item{padding:26px 28px 26px 0;border-right:1px dashed var(--line-strong);}
.channel-item:last-child{border-right:0;padding-right:0;}
.channel-item .no{font-family:var(--font-serif);font-size:13px;color:var(--clay);letter-spacing:.1em;font-variant-numeric:tabular-nums;}
.channel-item h3{font-size:17px;font-weight:600;color:var(--ink-deep);margin:8px 0 8px;}
.channel-item p{font-size:14px;line-height:1.8;color:var(--muted);}
.channel-item .meta{display:block;margin-top:12px;font-size:13px;color:var(--faint);font-variant-numeric:tabular-nums;}

/* ---------- 主体：FAQ + 咨询卡 ---------- */
.consult-grid{display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:start;}
.faq-list{border-top:2px solid var(--ink);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  display:flex;align-items:flex-start;gap:14px;
  padding:20px 0;cursor:pointer;list-style:none;
  transition:color var(--t-fast) var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-no{
  flex:0 0 auto;font-family:var(--font-serif);font-size:13px;color:var(--faint);
  padding-top:4px;font-variant-numeric:tabular-nums;letter-spacing:.06em;
}
.faq-q{flex:1;font-size:17px;line-height:1.6;font-weight:600;color:var(--text);transition:color var(--t-fast) var(--ease);}
.faq-item summary:hover .faq-q{color:var(--ink);}
.faq-icon{position:relative;flex:0 0 auto;width:22px;height:22px;margin-top:2px;border-radius:999px;border:1px solid var(--line-strong);transition:border-color var(--t-fast) var(--ease),background var(--t-fast) var(--ease);}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--ink);border-radius:1px;transition:transform var(--t-base) var(--ease),opacity var(--t-base) var(--ease);}
.faq-icon::before{left:50%;top:6px;width:1.5px;height:10px;margin-left:-.75px;}
.faq-icon::after{top:50%;left:6px;height:1.5px;width:10px;margin-top:-.75px;}
.faq-item[open] .faq-q{color:var(--ink-deep);}
.faq-item[open] .faq-icon{background:var(--ink);border-color:var(--ink);}
.faq-item[open] .faq-icon::before,.faq-item[open] .faq-icon::after{background:var(--white);}
.faq-item[open] .faq-icon::before{transform:rotate(90deg);opacity:0;}
.faq-a{padding:0 0 22px 44px;font-size:15px;line-height:1.85;color:var(--muted);}
.faq-a p+p{margin-top:10px;}
.faq-a ul{margin-top:10px;display:flex;flex-direction:column;gap:6px;}
.faq-a li{position:relative;padding-left:16px;}
.faq-a li::before{content:"";position:absolute;left:0;top:.78em;width:5px;height:5px;border-radius:50%;background:var(--clay-light);}

.consult-card{
  position:sticky;top:76px;
  background:var(--paper-2);border:1px solid var(--line);
  border-radius:var(--radius-block);padding:26px;
  box-shadow:var(--shadow-sm);
}
.consult-card h3{font-size:19px;font-weight:700;color:var(--ink-deep);line-height:1.45;}
.consult-card .desc{margin-top:10px;font-size:14px;line-height:1.8;color:var(--muted);}
.consult-tel{display:flex;align-items:center;gap:12px;margin-top:18px;padding:14px 16px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);}
.consult-tel .ico{width:36px;height:36px;border-radius:999px;background:rgba(44,90,73,.10);display:flex;align-items:center;justify-content:center;color:var(--ink);flex:0 0 auto;}
.consult-tel strong{display:block;font-size:18px;letter-spacing:.02em;color:var(--ink-deep);font-variant-numeric:tabular-nums;line-height:1.3;}
.consult-tel span{font-size:12.5px;color:var(--faint);}
.form{margin-top:20px;display:flex;flex-direction:column;gap:16px;}
.field{display:flex;flex-direction:column;gap:6px;}
.field label{font-size:14px;font-weight:600;color:var(--text);}
.field input,.field textarea{
  width:100%;border:1px solid var(--line-strong);border-radius:var(--radius-btn);
  background:var(--white);padding:0 14px;height:46px;font-size:15px;
  transition:border-color var(--t-fast) var(--ease),box-shadow var(--t-fast) var(--ease);
}
.field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:var(--faint);font-size:14px;}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 3px rgba(22,54,44,.12);}
.field .hint{font-size:12.5px;color:var(--faint);line-height:1.6;}
.form-note{font-size:12.5px;color:var(--faint);line-height:1.7;text-align:center;}
.form-msg{display:none;font-size:13px;padding:10px 12px;border-radius:10px;line-height:1.6;}
.form-msg.is-ok{display:block;background:rgba(47,125,91,.10);color:var(--ok);border:1px solid rgba(47,125,91,.25);}
.form-msg.is-err{display:block;background:rgba(168,58,43,.08);color:#A83A2B;border:1px solid rgba(168,58,43,.25);}

/* ---------- 承诺数据条 ---------- */
.promises{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.promise-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;}
.promise{padding:8px 24px;border-right:1px solid var(--line);}
.promise:first-child{padding-left:0;}
.promise:last-child{border-right:0;padding-right:0;}
.promise strong{display:block;font-family:var(--font-serif);font-size:clamp(28px,3.4vw,38px);line-height:1.2;color:var(--ink);font-variant-numeric:tabular-nums;}
.promise strong em{font-style:normal;font-size:15px;font-family:var(--font-sans);font-weight:600;color:var(--muted);margin-left:4px;}
.promise span{display:block;margin-top:6px;font-size:14px;color:var(--muted);line-height:1.7;}

/* ---------- 通栏 CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--ink-deep);color:var(--white);
  border-radius:var(--radius-block);
  padding:52px 48px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.055) 0 1px,transparent 1px 12px);
  pointer-events:none;
}
.cta-band::after{
  content:"XKTY";position:absolute;right:-10px;bottom:-34px;
  font-size:150px;font-weight:700;letter-spacing:.14em;color:rgba(255,255,255,.04);
  line-height:1;pointer-events:none;
}
.cta-grid{position:relative;z-index:2;display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:center;}
.cta-band h2{font-family:var(--font-serif);font-size:clamp(24px,3vw,34px);line-height:1.32;color:var(--white);}
.cta-band p{margin-top:14px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.72);max-width:36em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.btn--light{background:var(--white);color:var(--ink-deep);border:1px solid var(--white);}
.btn--light:hover{background:var(--clay-light);border-color:var(--clay-light);color:var(--ink-deep);}
.btn--outline-light{background:transparent;color:var(--white);border:1px solid rgba(255,255,255,.38);}
.btn--outline-light:hover{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.7);color:var(--white);}
.cta-points{display:flex;flex-direction:column;gap:14px;position:relative;z-index:2;}
.cta-points li{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;line-height:1.75;color:rgba(255,255,255,.82);}
.cta-points .tick{flex:0 0 auto;width:20px;height:20px;border-radius:999px;border:1px solid rgba(255,255,255,.35);display:flex;align-items:center;justify-content:center;margin-top:3px;}
.cta-points .tick svg{color:var(--clay-light);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-deep);color:rgba(255,255,255,.72);margin-top:72px;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:5fr 2.2fr 2.2fr 2.6fr;gap:40px;}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand .logo__mark{color:var(--white);}
.footer-brand .logo__cn{color:rgba(255,255,255,.86);}
.footer-brand .logo__dot{color:rgba(255,255,255,.45);}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:34em;}
.footer-contact{margin-top:18px;font-size:14px;line-height:2;color:rgba(255,255,255,.66);}
.footer-contact a{color:rgba(255,255,255,.86);}
.footer-contact a:hover{color:var(--clay-light);}
.footer-col h3{font-size:15px;font-weight:600;color:var(--white);margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-col a:hover{color:var(--white);text-decoration:underline;}
.footer-bottom{
  margin-top:48px;padding:22px 0;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.52);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .hero__grid{gap:36px;}
  .consult-grid{gap:32px;}
}
@media (max-width:1023px){
  .search{display:none;}
  .hero__grid{grid-template-columns:1fr;gap:32px;align-items:start;}
  .hero__figure img{height:300px;}
  .consult-grid{grid-template-columns:1fr;gap:32px;}
  .consult-card{position:static;top:auto;}
  .cta-grid{grid-template-columns:1fr;gap:28px;}
  .promise-grid{grid-template-columns:repeat(2,1fr);row-gap:24px;}
  .promise{padding:0 24px;border-right:1px solid var(--line);}
  .promise:nth-child(2n){border-right:0;padding-right:0;}
  .promise:nth-child(2n+1){padding-left:0;}
  .channel-list{grid-template-columns:1fr;}
  .channel-item{border-right:0;border-bottom:1px dashed var(--line-strong);padding:22px 0;}
  .channel-item:last-child{border-bottom:0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1 / -1;}
}
@media (max-width:767px){
  .brandbar__inner{height:56px;gap:12px;}
  .brandbar__actions .tel-link{display:none;}
  .brandbar__actions .btn--primary{display:none;}
  .burger{display:flex;}
  .logo__dot{display:none;}
  .channel-tabs{height:46px;padding-right:16px;}
  .channel-tab{height:46px;font-size:14px;padding:0 12px;}
  .channel-tab::after{left:12px;right:12px;}
  .section{padding:40px 0;}
  .section--tight{padding:36px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .section-head h2{font-size:22px;}
  .hero{padding:22px 0 0;}
  .hero__figure img{height:220px;}
  .hero__meta{margin-top:24px;padding-top:16px;}
  .hero__meta strong{font-size:20px;}
  .faq-q{font-size:15.5px;}
  .faq-a{padding-left:0;}
  .consult-card{padding:20px;border-radius:var(--radius-card);}
  .cta-band{padding:32px 22px;}
  .cta-band::after{font-size:96px;bottom:-24px;}
  .promise{padding:0 16px;}
  .promise strong{font-size:28px;}
  .site-footer{padding-top:44px;margin-top:48px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-col h3{margin-bottom:10px;}
  .footer-bottom{flex-direction:column;gap:6px;font-size:12.5px;}
}
@media (max-width:420px){
  .hero h1{font-size:26px;}
  .hero__actions .btn{width:100%;}
  .promise-grid{grid-template-columns:1fr;}
  .promise{padding:0;border-right:0;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
}