/* roulang page: index */
/* ========== 1. 设计变量 ========== */
:root{
  --ink:#14181A; --ink-2:#3A4240; --muted:#6B7370; --line:#E2DCD1;
  --paper:#FAF8F4; --paper-2:#F1EDE5; --card:#FFFFFF;
  --brand:#0F3D3A; --brand-600:#14564F; --brand-300:#6FA398;
  --accent:#C97B3C; --accent-2:#A85B25;
  --ok:#2F7D5F; --danger:#B4453A;
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",Georgia,serif;
  --sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --mono:"Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --r-card:18px; --r-img:14px; --r-input:12px;
  --sh-1:0 1px 2px rgba(20,24,26,.05);
  --sh-2:0 18px 40px rgba(15,61,58,.10);
  --sh-3:0 10px 34px rgba(20,24,26,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --gap:24px;
}
/* ========== 2. 基础重置 ========== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;font-family:var(--sans);font-size:16.5px;line-height:1.85;color:var(--ink);
  background:var(--paper);-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-600);text-decoration:none;transition:color .24s var(--ease);}
a:hover{color:var(--accent-2);}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;}
h1,h2,h3,h4{font-family:var(--serif);font-weight:700;letter-spacing:-.01em;margin:0;color:var(--ink);}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(201,123,60,.25);}
/* ========== 3. 容器与栅格 ========== */
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto;}
.grid-x.margin-x-n{margin-left:-12px;margin-right:-12px;}
.grid-x.margin-x-n > .cell{padding-left:12px;padding-right:12px;}
.grid-x.margin-y-n{margin-top:-12px;margin-bottom:-12px;}
.grid-x.margin-y-n > .cell{padding-top:12px;padding-bottom:12px;}
.section{padding:clamp(56px,7vw,104px) 0;}
.section--tight{padding:clamp(48px,5vw,76px) 0;}
.section--paper{background:var(--paper-2);}
.section--dark{background:var(--brand);color:#fff;}
.section-head{margin-bottom:clamp(28px,3.4vw,48px);}
.section-head--split{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;
  color:var(--brand);background:rgba(15,61,58,.08);border-radius:6px;padding:5px 10px;margin-bottom:16px;
}
.eyebrow--light{color:#EAF2EF;background:rgba(255,255,255,.12);}
.section-title{font-size:clamp(24px,2.6vw,34px);line-height:1.28;}
.section-desc{color:var(--muted);font-size:15px;max-width:620px;margin-top:12px;}
.section--dark .section-desc{color:rgba(255,255,255,.72);}
/* ========== 4. Dock 导航 ========== */
.site-header{position:sticky;top:0;z-index:80;padding:16px 18px 0;}
.dock-wrap{max-width:1080px;margin:0 auto;position:relative;}
.dock{
  display:flex;align-items:center;gap:16px;padding:9px 12px 9px 18px;
  border:1px solid var(--line);border-radius:999px;
  background:rgba(250,248,244,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--sh-3);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:28px;height:28px;flex:0 0 28px;border-radius:8px;background:var(--brand);
  display:grid;place-items:center;
}
.brand-mark svg{width:15px;height:15px;display:block;}
.brand-text{font-size:15px;font-weight:600;letter-spacing:.02em;color:var(--ink);white-space:nowrap;}
.dock-nav{display:flex;align-items:center;gap:2px;margin:0 auto;}
.dock-nav a{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 13px;
  font-size:14.5px;color:var(--ink-2);border-radius:999px;
}
.dock-nav a::after{
  content:"";position:absolute;left:50%;right:50%;bottom:7px;height:2px;background:var(--brand);
  transition:left .24s var(--ease),right .24s var(--ease);
}
.dock-nav a:hover{color:var(--brand);background:var(--paper-2);}
.dock-nav a:hover::after{left:13px;right:13px;}
.dock-nav a.is-active{color:var(--brand);font-weight:600;}
.dock-nav a.is-active::after{left:13px;right:13px;}
.dock-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto;}
.icon-btn{
  width:44px;height:44px;display:grid;place-items:center;border-radius:999px;
  border:1px solid transparent;background:transparent;color:var(--ink-2);
  transition:background .24s var(--ease),color .24s var(--ease);
}
.icon-btn:hover{background:var(--paper-2);color:var(--brand);}
.icon-btn svg{width:18px;height:18px;}
.menu-toggle{display:none;}
/* 抽屉 */
.dock-drawer{
  position:absolute;top:calc(100% + 10px);left:0;right:0;padding:10px;
  border:1px solid var(--line);border-radius:24px;background:rgba(250,248,244,.97);
  backdrop-filter:blur(14px);box-shadow:var(--sh-3);
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s;
}
.dock-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.dock-drawer a{
  display:flex;align-items:center;justify-content:space-between;height:52px;padding:0 16px;
  border-radius:14px;font-size:15px;color:var(--ink-2);
}
.dock-drawer a:hover{background:var(--paper-2);color:var(--brand);}
.dock-drawer a.is-active{color:var(--brand);font-weight:600;background:rgba(15,61,58,.06);}
/* ========== 5. 按钮 ========== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:500;line-height:1;white-space:nowrap;cursor:pointer;
  transition:background .24s var(--ease),color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.btn--primary{background:var(--brand);color:var(--paper);box-shadow:var(--sh-1);}
.btn--primary:hover{background:var(--accent);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn--ghost{background:transparent;border-color:var(--brand);color:var(--brand);}
.btn--ghost:hover{background:var(--paper-2);color:var(--brand-600);}
.btn--sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn--block{width:100%;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;color:var(--brand);font-weight:500;}
.text-link span{transition:transform .24s var(--ease);}
.text-link:hover span{transform:translateX(3px);}
.arrow-link{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;color:var(--brand);font-weight:500;margin-top:14px;}
.arrow-link i{font-style:normal;transition:transform .24s var(--ease);}
.arrow-link:hover i{transform:translateX(3px);}
/* ========== 6. Hero ========== */
.hero{padding:clamp(36px,5vw,72px) 0 clamp(48px,6vw,88px);position:relative;}
.hero::before{
  content:"";position:absolute;top:-140px;right:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(111,163,152,.22),rgba(111,163,152,0) 68%);pointer-events:none;
}
.hero-copy{position:relative;z-index:2;}
.hero-title{font-size:clamp(30px,3.6vw,46px);line-height:1.2;margin-bottom:18px;}
.hero-sub{font-size:17px;color:var(--ink-2);max-width:520px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14.5px;color:var(--muted);}
.hero-points li::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent);flex:0 0 7px;}
.hero-media{position:relative;border-radius:20px;overflow:hidden;box-shadow:var(--sh-2);}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.hero-media::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(15,61,58,.24),rgba(15,61,58,.02) 58%);
}
.hero-stat{
  position:absolute;left:18px;bottom:18px;z-index:3;padding:12px 16px;border-radius:14px;
  background:rgba(255,255,255,.94);box-shadow:var(--sh-3);min-width:186px;
}
.hero-stat b{display:block;font-family:var(--mono);font-size:22px;letter-spacing:.02em;color:var(--brand);line-height:1.3;}
.hero-stat span{font-size:12.5px;color:var(--muted);}
/* ========== 7. 指标看板 ========== */
.metrics{border-radius:24px;padding:clamp(32px,4vw,56px) clamp(20px,3vw,44px);}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;}
.metric{padding:0 26px;border-left:1px solid rgba(255,255,255,.14);}
.metric:first-child{border-left:0;padding-left:0;}
.metric-num{font-family:var(--mono);font-size:clamp(36px,5vw,64px);line-height:1.06;letter-spacing:.02em;color:#fff;}
.metric-label{margin-top:12px;font-size:13.5px;line-height:1.6;color:rgba(255,255,255,.72);}
.metric-note{margin-top:6px;font-size:12.5px;color:rgba(255,255,255,.5);}
/* ========== 8. Bento 服务矩阵 ========== */
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:22px;}
.bento-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:26px;
  box-shadow:var(--sh-1);transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
  display:flex;flex-direction:column;
}
.bento-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-300);}
.bento-no{font-family:var(--mono);font-size:12px;letter-spacing:.08em;color:var(--accent);margin-bottom:14px;}
.bento-title{font-size:19px;line-height:1.45;margin-bottom:10px;}
.bento-desc{font-size:14.5px;color:var(--muted);line-height:1.75;}
.bento-thumb{margin-top:18px;border-radius:var(--r-img);overflow:hidden;aspect-ratio:3/2;}
.bento-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.bento-card:hover .bento-thumb img{transform:scale(1.04);}
.bento-a{grid-column:1 / 5;grid-row:1 / 3;}
.bento-b{grid-column:5 / 7;grid-row:1 / 2;}
.bento-c{grid-column:5 / 7;grid-row:2 / 3;}
.bento-d{grid-column:1 / 4;grid-row:3 / 4;}
.bento-e{grid-column:4 / 7;grid-row:3 / 4;}
.bento-wide{display:grid;grid-template-columns:1.05fr .95fr;gap:22px;align-items:center;}
/* ========== 9. 结果对比 ========== */
.compare{display:grid;grid-template-columns:1fr 76px 1fr;gap:0;align-items:stretch;}
.compare-col{border-radius:var(--r-card);padding:28px;border:1px solid var(--line);}
.compare-col--before{background:var(--paper-2);}
.compare-col--after{background:#fff;box-shadow:var(--sh-2);border-color:var(--brand-300);}
.compare-col h3{font-size:18px;margin-bottom:16px;}
.compare-list li{
  display:flex;gap:10px;font-size:14.5px;line-height:1.75;color:var(--ink-2);
  padding:11px 0;border-bottom:1px dashed var(--line);
}
.compare-list li:last-child{border-bottom:0;}
.compare-list li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--muted);margin-top:9px;flex:0 0 6px;}
.compare-col--after .compare-list li::before{background:var(--brand);}
.compare-axis{position:relative;display:grid;place-items:center;}
.compare-axis::before{content:"";position:absolute;top:8%;bottom:8%;width:2px;background:var(--accent);border-radius:2px;}
.compare-axis span{
  position:relative;z-index:2;background:var(--paper);padding:8px 6px;border-radius:8px;
  font-family:var(--mono);font-size:12px;letter-spacing:.04em;color:var(--accent-2);writing-mode:vertical-rl;
}
.bars{margin-top:40px;display:grid;gap:18px;}
.bar-row{display:grid;grid-template-columns:150px 1fr 78px;align-items:center;gap:16px;}
.bar-name{font-size:14.5px;color:var(--ink-2);}
.bar-track{height:10px;border-radius:999px;background:var(--paper-2);overflow:hidden;}
.bar-fill{height:100%;border-radius:999px;background:var(--brand);width:0;transition:width 1s var(--ease);}
.bar-val{font-family:var(--mono);font-size:13.5px;color:var(--brand);text-align:right;}
/* ========== 10. 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);overflow:hidden;
  display:flex;flex-direction:column;box-shadow:var(--sh-1);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-300);}
.news-cover{display:block;aspect-ratio:3/2;overflow:hidden;background:var(--paper-2);}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.news-card:hover .news-cover img{transform:scale(1.04);}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
.badge{
  display:inline-block;font-size:12px;letter-spacing:.02em;color:var(--brand);
  background:rgba(15,61,58,.08);border-radius:6px;padding:4px 10px;margin-bottom:12px;align-self:flex-start;
}
.news-title{font-size:18px;line-height:1.5;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-title a{color:var(--ink);}
.news-title a:hover{color:var(--brand);}
.news-excerpt{font-size:14.5px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-family:var(--mono);font-size:12.5px;color:var(--muted);letter-spacing:.02em;
}
.news-meta .arrow-link{margin-top:0;font-family:var(--sans);}
.empty-state{
  grid-column:1 / -1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;padding:60px 24px;border:1px dashed var(--line);border-radius:var(--r-card);background:var(--card);
}
.empty-state svg{width:96px;height:96px;color:var(--brand-300);margin-bottom:18px;}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:18px;}
/* ========== 11. FAQ 手风琴 ========== */
.faq{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:8px 28px;box-shadow:var(--sh-1);}
.accordion-item{border-bottom:1px solid var(--line);transition:box-shadow .28s var(--ease);}
.accordion-item:last-child{border-bottom:0;}
.accordion-item.is-open{box-shadow:inset 3px 0 0 var(--brand);}
.accordion-title{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px;background:none;border:0;text-align:left;
  font-family:var(--serif);font-size:17.5px;font-weight:600;line-height:1.5;color:var(--ink);
  transition:color .24s var(--ease),background .24s var(--ease);
}
.accordion-title:hover{color:var(--brand);background:var(--paper);}
.accordion-item.is-open .accordion-title{color:var(--brand);}
.acc-icon{position:relative;width:16px;height:16px;flex:0 0 16px;}
.acc-icon::before,.acc-icon::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
  transition:transform .32s var(--ease),opacity .32s var(--ease);
}
.acc-icon::before{left:0;right:0;top:7px;height:2px;}
.acc-icon::after{top:0;bottom:0;left:7px;width:2px;}
.accordion-item.is-open .acc-icon::after{transform:scaleY(0);opacity:0;}
.accordion-content{display:grid;grid-template-rows:0fr;transition:grid-template-rows .32s var(--ease);}
.accordion-item.is-open .accordion-content{grid-template-rows:1fr;}
.accordion-inner{overflow:hidden;}
.accordion-inner p{padding:0 20px 22px;font-size:15px;line-height:1.85;color:var(--ink-2);}
/* ========== 12. 转化表单 ========== */
.cta-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:clamp(28px,4vw,56px);align-items:start;}
.cta-points{margin-top:26px;display:grid;gap:16px;}
.cta-points li{display:flex;gap:12px;font-size:15px;color:var(--ink-2);line-height:1.7;}
.cta-points li b{
  flex:0 0 26px;height:26px;border-radius:8px;background:rgba(15,61,58,.08);color:var(--brand);
  font-family:var(--mono);font-size:12px;display:grid;place-items:center;margin-top:2px;
}
.form-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:clamp(24px,3vw,34px);box-shadow:var(--sh-2);
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13.5px;color:var(--ink-2);margin-bottom:8px;}
.field input,.field textarea{
  width:100%;padding:0 16px;height:50px;border:1px solid var(--line);border-radius:var(--r-input);
  background:#fff;transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.field textarea{height:auto;min-height:112px;padding:13px 16px;line-height:1.7;resize:vertical;}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,61,58,.10);
}
.field input::placeholder,.field textarea::placeholder{color:#A8AFA9;}
.check{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--muted);margin:6px 0 20px;line-height:1.65;}
.check input{width:18px;height:18px;flex:0 0 18px;margin-top:3px;accent-color:var(--brand);}
.form-note{margin-top:14px;font-size:12.5px;color:var(--muted);text-align:center;}
.form-success{
  display:none;margin-top:16px;padding:12px 16px;border-radius:12px;
  background:rgba(47,125,95,.10);color:var(--ok);font-size:14px;
}
.form-success.is-show{display:block;}
/* ========== 13. 页脚 ========== */
.site-footer{background:var(--paper-2);border-top:1px solid var(--line);padding:clamp(48px,5vw,72px) 0 26px;margin-top:0;}
.footer-brand p{font-size:13.5px;color:var(--muted);line-height:1.8;margin-top:16px;max-width:300px;}
.footer-col h4{font-size:14px;font-family:var(--sans);font-weight:600;letter-spacing:.04em;color:var(--ink);margin-bottom:16px;}
.footer-col li{margin-bottom:10px;}
.footer-col a,.footer-col span{font-size:13.5px;color:var(--muted);}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:clamp(32px,4vw,52px);padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13.5px;color:var(--muted);
}
/* ========== 14. 滚动动效 ========== */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .48s var(--ease),transform .48s var(--ease);}
.reveal.is-visible{opacity:1;transform:none;}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;transition:opacity .3s linear;}
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;}
  html{scroll-behavior:auto;}
}
/* ========== 15. 响应式 ========== */
@media (max-width:1023px){
  .dock-nav{display:none;}
  .menu-toggle{display:grid;}
  .bento{grid-template-columns:repeat(4,1fr);}
  .bento-a{grid-column:1 / 5;grid-row:auto;}
  .bento-b{grid-column:1 / 3;grid-row:auto;}
  .bento-c{grid-column:3 / 5;grid-row:auto;}
  .bento-d{grid-column:1 / 3;grid-row:auto;}
  .bento-e{grid-column:3 / 5;grid-row:auto;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .cta-grid{grid-template-columns:1fr;}
  .metrics-grid{grid-template-columns:repeat(2,1fr);gap:34px 0;}
  .metric{border-left:0;padding:0;}
  .metric:nth-child(even){border-left:1px solid rgba(255,255,255,.14);padding-left:28px;}
}
@media (max-width:767px){
  .grid-container{padding-left:18px;padding-right:18px;}
  .site-header{padding:12px 12px 0;}
  .dock{padding:8px 10px 8px 14px;border-radius:999px;gap:10px;}
  .brand-text{font-size:14.5px;}
  .compare{grid-template-columns:1fr;}
  .compare-axis{display:none;}
  .compare-col--before{margin-bottom:16px;}
  .bar-row{grid-template-columns:110px 1fr 64px;gap:10px;}
  .hero-media img{aspect-ratio:4/3;}
  .bento{grid-template-columns:1fr;}
  .bento-a,.bento-b,.bento-c,.bento-d,.bento-e{grid-column:1 / -1;}
  .bento-wide{grid-template-columns:1fr;}
  .faq{padding:6px 16px;}
  .accordion-title{padding:18px 12px;font-size:16.5px;}
  .accordion-inner p{padding:0 12px 20px;}
}
@media (max-width:520px){
  .dock-actions .icon-btn{display:none;}
  .news-grid{grid-template-columns:1fr;}
  .metrics-grid{grid-template-columns:1fr;gap:28px 0;}
  .metric,.metric:nth-child(even){border-left:0;padding-left:0;}
  .hero-actions .btn{width:100%;}
  .btn--block-mobile{width:100%;}
}

/* roulang page: article */
:root{
  --ink:#14181A;--ink-2:#3A4240;--muted:#6B7370;--line:#E2DCD1;
  --paper:#FAF8F4;--paper-2:#F1EDE5;--card:#FFFFFF;
  --brand:#0F3D3A;--brand-600:#14564F;--brand-300:#6FA398;
  --accent:#C97B3C;--accent-2:#A85B25;--ok:#2F7D5F;--danger:#B4453A;
  --r-card:18px;--r-img:14px;--r-pill:999px;--r-input:12px;
  --sh-1:0 1px 2px rgba(20,24,26,.05);
  --sh-2:0 18px 40px rgba(15,61,58,.10);
  --sh-3:0 10px 34px rgba(20,24,26,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:"Noto Sans SC","Source Han Sans SC","PingFang SC",sans-serif;
  --mono:"Roboto Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --sec:clamp(56px,7vw,104px);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--sans);font-size:16.5px;line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;object-fit:cover;}
a{color:var(--brand);text-decoration:none;transition:color .24s var(--ease);}
a:hover{color:var(--accent-2);}
p{margin:0 0 1em;}
h1,h2,h3,h4{font-family:var(--serif);color:var(--ink);margin:0 0 .6em;font-weight:700;letter-spacing:-.01em;}
h1{font-size:clamp(30px,3.6vw,46px);line-height:1.2;}
h2{font-size:clamp(24px,2.6vw,34px);line-height:1.28;}
h3{font-size:20px;line-height:1.45;}
ul,ol{padding-left:1.2em;}
button,input,textarea,select{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.grid-container{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}
.grid-container.full{max-width:100%;padding:0;}

/* ============ Dock 导航 ============ */
.site-header{position:sticky;top:0;z-index:60;padding:16px 18px 0;}
.dock{
  max-width:1080px;margin:0 auto;display:flex;align-items:center;gap:16px;
  background:rgba(250,248,244,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);border-radius:999px;padding:9px 12px 9px 16px;
  box-shadow:var(--sh-3);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:28px;height:28px;border-radius:8px;background:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.brand-mark svg{width:17px;height:17px;}
.brand-text{font-size:15.5px;font-weight:600;letter-spacing:.02em;color:var(--ink);white-space:nowrap;}
.dock-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.dock-nav a{
  position:relative;padding:9px 13px;border-radius:999px;font-size:14.5px;color:var(--ink-2);
  transition:color .24s var(--ease),background .24s var(--ease);
}
.dock-nav a::after{
  content:"";position:absolute;left:50%;bottom:3px;width:0;height:2px;background:var(--brand);
  transform:translateX(-50%);transition:width .24s var(--ease);border-radius:2px;
}
.dock-nav a:hover{color:var(--brand);background:rgba(15,61,58,.05);}
.dock-nav a.is-active{color:var(--brand);font-weight:600;}
.dock-nav a.is-active::after{width:20px;}
.dock-actions{display:flex;align-items:center;gap:8px;margin-left:6px;}
.icon-btn{
  width:44px;height:44px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;
  color:var(--ink-2);transition:background .24s var(--ease),color .24s var(--ease);
}
.icon-btn:hover{background:var(--paper-2);color:var(--brand);}
.icon-btn svg{width:19px;height:19px;}
.menu-toggle{display:none;width:44px;height:44px;border-radius:999px;align-items:center;justify-content:center;color:var(--ink-2);}
.menu-toggle svg{width:20px;height:20px;}
.dock-drawer{
  max-width:1080px;margin:10px auto 0;background:rgba(250,248,244,.96);backdrop-filter:blur(14px);
  border:1px solid var(--line);border-radius:20px;box-shadow:var(--sh-3);padding:10px;
  display:none;
}
.dock-drawer.is-open{display:block;}
.dock-drawer a{
  display:block;padding:13px 16px;border-radius:14px;font-size:15.5px;color:var(--ink-2);
}
.dock-drawer a:hover{background:var(--paper-2);color:var(--brand);}
.dock-drawer a.is-active{color:var(--brand);font-weight:600;background:rgba(15,61,58,.06);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border-radius:var(--r-pill);font-size:15.5px;font-weight:500;
  border:1px solid transparent;transition:all .24s var(--ease);white-space:nowrap;
}
.btn-sm{min-height:42px;padding:0 20px;font-size:14.5px;}
.btn-primary{background:var(--brand);color:var(--paper);box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--accent);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand);}
.btn-ghost:hover{background:var(--paper-2);color:var(--brand);}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:15px;font-weight:500;min-height:44px;
}
.btn-text svg{width:16px;height:16px;transition:transform .24s var(--ease);}
.btn-text:hover svg{transform:translateX(3px);}

/* ============ 通用块 ============ */
.section{padding:var(--sec) 0;}
.section-alt{background:var(--paper-2);}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--brand-600);background:rgba(15,61,58,.08);border-radius:6px;padding:4px 10px;margin-bottom:14px;
}
.section-head{max-width:720px;margin-bottom:clamp(28px,3.6vw,48px);}
.section-head p{color:var(--muted);font-size:15.5px;margin:0;}
.badge{
  display:inline-block;font-size:12px;letter-spacing:.04em;border-radius:6px;padding:4px 10px;
  background:var(--paper-2);color:var(--brand-600);
}
.mono{font-family:var(--mono);letter-spacing:.02em;}

/* ============ 面包屑 ============ */
.crumb-band{padding:28px 0 0;}
.breadcrumb{font-size:13.5px;color:var(--muted);display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--line);}
.breadcrumb .current{color:var(--ink);}

/* ============ 文章头 ============ */
.article-head{padding:24px 0 0;}
.article-head-inner{max-width:860px;}
.article-head h1{margin:14px 0 18px;}
.article-meta{
  display:flex;flex-wrap:wrap;gap:10px 20px;align-items:center;
  font-size:13.5px;color:var(--muted);font-family:var(--mono);letter-spacing:.02em;
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line);}
.article-divider{height:1px;background:var(--line);margin:26px 0 0;}

/* ============ 正文布局 ============ */
.article-layout{
  display:flex;gap:52px;align-items:flex-start;justify-content:center;
  padding:44px 0 var(--sec);
}
.article-main{flex:1 1 auto;max-width:760px;min-width:0;}
.article-body{font-size:17px;line-height:1.9;color:var(--ink-2);}
.article-body h2{font-size:clamp(22px,2.2vw,28px);color:var(--ink);margin:40px 0 16px;scroll-margin-top:110px;}
.article-body h3{font-size:19px;color:var(--ink);margin:28px 0 12px;scroll-margin-top:110px;}
.article-body p{margin:0 0 1em;}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(15,61,58,.28);}
.article-body a:hover{color:var(--accent-2);border-bottom-color:var(--accent);}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.3em;}
.article-body li{margin-bottom:.5em;}
.article-body ul li::marker{color:var(--accent);}
.article-body ol li::marker{color:var(--accent);font-family:var(--mono);}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;background:var(--paper-2);
  border-left:3px solid var(--brand);border-radius:0 var(--r-img) var(--r-img) 0;
  color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-img);margin:24px 0;box-shadow:var(--sh-1);}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;}
.article-body table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:15.5px;
  border:1px solid var(--line);border-radius:var(--r-img);overflow:hidden;
}
.article-body th{background:var(--paper-2);font-weight:600;color:var(--ink);}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;}
.article-body tbody tr:nth-child(even){background:rgba(241,237,229,.5);}
.article-body tbody tr:last-child td{border-bottom:0;}
.article-body code{
  font-family:var(--mono);font-size:14.5px;background:var(--paper-2);
  padding:2px 6px;border-radius:6px;color:var(--brand-600);
}
.article-body pre{
  background:#0F3D3A;color:#EDE9E1;padding:18px 20px;border-radius:var(--r-img);
  overflow-x:auto;font-family:var(--mono);font-size:14.5px;line-height:1.7;margin:24px 0;
}
.article-body pre code{background:none;color:inherit;padding:0;}
.article-body hr{border:0;height:1px;background:var(--line);margin:36px 0;}

/* ============ 目录 ============ */
.article-aside{flex:0 0 200px;width:200px;position:sticky;top:104px;}
.toc-title{
  font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);
  margin-bottom:14px;font-family:var(--mono);
}
.toc-list{list-style:none;margin:0;padding:0;border-left:1px solid var(--line);}
.toc-list li{margin:0;}
.toc-list a{
  display:block;padding:7px 0 7px 14px;font-size:13.5px;line-height:1.5;color:var(--muted);
  border-left:2px solid transparent;margin-left:-1px;transition:all .24s var(--ease);
}
.toc-list a:hover{color:var(--brand);}
.toc-list a.is-current{color:var(--brand);border-left-color:var(--brand);font-weight:600;}
.toc-mobile{display:none;margin-bottom:26px;border:1px solid var(--line);border-radius:14px;background:var(--card);overflow:hidden;}
.toc-mobile summary{
  list-style:none;padding:15px 18px;font-size:14.5px;font-weight:600;color:var(--ink);cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;min-height:44px;
}
.toc-mobile summary::-webkit-details-marker{display:none;}
.toc-mobile summary::after{content:"+";font-family:var(--mono);color:var(--brand);font-size:18px;}
.toc-mobile[open] summary::after{content:"−";}
.toc-mobile .toc-list{border-left:0;padding:0 18px 14px;}
.toc-mobile .toc-list a{border-left:0;padding-left:0;}

/* ============ 空态 ============ */
.empty-state{
  text-align:center;padding:56px 24px;border:1px dashed var(--line);border-radius:var(--r-card);
  background:var(--card);
}
.empty-state svg{width:96px;height:96px;margin:0 auto 20px;color:var(--brand-300);}
.empty-state h3{margin-bottom:8px;}
.empty-state p{color:var(--muted);margin-bottom:20px;}

/* ============ 相关推荐 ============ */
.related{padding:0 0 var(--sec);}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .32s var(--ease),box-shadow .32s var(--ease),border-color .32s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-300);}
.card-thumb{aspect-ratio:3/2;width:100%;background:var(--paper-2);}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:18px;margin:0;}
.card-body p{font-size:14.5px;color:var(--muted);margin:0;line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;}
.card-foot .mono{font-size:12.5px;color:var(--muted);}

/* ============ CTA 条 ============ */
.cta-band{
  background:linear-gradient(rgba(15,61,58,.92),rgba(15,61,58,.92)),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  border-radius:24px;padding:clamp(34px,4.4vw,56px);color:#EDE9E1;
  display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between;
}
.cta-band h2{color:#fff;margin-bottom:10px;}
.cta-band p{color:rgba(237,233,225,.78);margin:0;max-width:560px;font-size:15.5px;}
.cta-band .btn-primary{background:var(--accent);color:#fff;}
.cta-band .btn-primary:hover{background:#fff;color:var(--brand);}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--paper-2);border-top:1px solid var(--line);padding-top:clamp(44px,5vw,72px);margin-top:var(--sec);}
.site-footer .footer-brand p{font-size:13.5px;color:var(--muted);margin-top:16px;max-width:330px;line-height:1.8;}
.site-footer .brand{margin-bottom:4px;}
.footer-col{margin-bottom:28px;}
.footer-col h4{font-size:13.5px;font-family:var(--sans);font-weight:600;color:var(--ink);letter-spacing:.04em;margin-bottom:14px;}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a,.footer-col span{font-size:13.5px;color:var(--muted);line-height:1.7;}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  border-top:1px solid var(--line);margin-top:20px;padding:20px 0;
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13.5px;color:var(--muted);
}
.margin-x-n{margin-left:0 !important;margin-right:0 !important;}
.margin-y-n{margin-top:0 !important;margin-bottom:0 !important;}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .48s var(--ease),transform .48s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  *{animation:none !important;scroll-behavior:auto !important;}
}

/* ============ 响应式 ============ */
@media screen and (max-width:1023px){
  .dock-nav{display:none;}
  .menu-toggle{display:inline-flex;}
  .article-layout{flex-direction:column;gap:0;}
  .article-aside{display:none;}
  .toc-mobile{display:block;width:100%;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
}
@media screen and (max-width:767px){
  .grid-container{padding-left:18px;padding-right:18px;}
  .site-header{padding:12px 14px 0;}
  .dock{padding:8px 10px 8px 14px;gap:10px;}
  .brand-text{font-size:15px;}
  .dock-actions .btn-sm{display:none;}
  .article-layout{padding-top:32px;}
  .article-body{font-size:16.5px;}
  .cta-band{padding:30px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
}
@media screen and (max-width:639px){
  .related-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: category1 */
:root{
  --ink:#14181A; --ink-2:#3A4240; --muted:#6B7370; --line:#E2DCD1;
  --paper:#FAF8F4; --paper-2:#F1EDE5; --card:#FFFFFF;
  --brand:#0F3D3A; --brand-600:#14564F; --brand-300:#6FA398;
  --accent:#C97B3C; --accent-2:#A85B25;
  --ok:#2F7D5F; --danger:#B4453A;
  --r-card:18px; --r-img:14px; --r-btn:999px; --r-input:12px;
  --sh-1:0 1px 2px rgba(20,24,26,.05);
  --sh-2:0 18px 40px rgba(15,61,58,.10);
  --sh-3:0 10px 34px rgba(20,24,26,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --serif:"Noto Serif SC","Source Han Serif SC",Georgia,serif;
  --sans:"Noto Sans SC","Source Han Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --mono:"Roboto Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .24s var(--ease)}
a:hover{color:var(--accent-2)}
h1,h2,h3,h4{font-family:var(--serif);font-weight:700;color:var(--ink);letter-spacing:-.01em;margin:0}
h1{font-size:clamp(30px,3.6vw,46px);line-height:1.2}
h2{font-size:clamp(24px,2.6vw,34px);line-height:1.28}
h3{font-size:20px;line-height:1.45}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
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}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
::selection{background:rgba(15,61,58,.14)}

/* ---------- Foundation 覆写 ---------- */
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px}
.row{margin-left:-12px;margin-right:-12px}
.column,.columns{padding-left:12px;padding-right:12px}
.reveal{display:block}

/* ---------- 通用容器 ---------- */
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:clamp(56px,7vw,104px) 0}
.section-tight{padding:clamp(40px,5vw,72px) 0}
.eyebrow{
  display:inline-block;
  font-size:12px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--brand-600);font-family:var(--mono);
  margin-bottom:14px;
}
.sec-head{max-width:720px;margin-bottom:clamp(28px,4vw,48px)}
.sec-head h2{margin-bottom:14px}
.sec-head p{color:var(--muted);font-size:15.5px;margin:0}
.badge{
  display:inline-block;font-size:12px;letter-spacing:.04em;
  padding:4px 10px;border-radius:6px;
  background:rgba(15,61,58,.08);color:var(--brand-600);
}
.badge.badge-accent{background:rgba(201,123,60,.12);color:var(--accent-2)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  gap:8px;height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:500;line-height:1;
  transition:transform .24s var(--ease),background-color .24s var(--ease),color .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
  min-width:44px;
}
.btn-primary{background:var(--brand);color:var(--paper);box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--accent);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-ghost{background:transparent;color:var(--brand);border:1px solid var(--brand)}
.btn-ghost:hover{background:var(--paper-2);color:var(--brand-600)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.link-btn{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:500;color:var(--brand);
  border-bottom:1px solid transparent;padding-bottom:2px;
}
.link-btn:hover{color:var(--accent-2)}
.link-btn svg{transition:transform .24s var(--ease)}
.link-btn:hover svg{transform:translateX(3px)}

/* ---------- Dock 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  padding:16px 0 0;
  background:linear-gradient(180deg,rgba(250,248,244,.96) 40%,rgba(250,248,244,0));
}
.dock{
  max-width:1080px;margin:0 auto;
  display:flex;align-items:center;gap:18px;
  padding:8px 10px 8px 16px;
  border-radius:999px;
  background:rgba(250,248,244,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);
  box-shadow:var(--sh-3);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:28px;height:28px;border-radius:8px;background:var(--brand);
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.brand-mark svg{width:17px;height:17px;display:block}
.brand-text{
  font-size:15px;font-weight:600;letter-spacing:.02em;color:var(--ink);
  font-family:var(--sans);white-space:nowrap;
}
.dock-nav{
  display:flex;align-items:center;gap:2px;margin-left:auto;
}
.dock-nav a{
  position:relative;
  padding:9px 13px;border-radius:999px;
  font-size:14.5px;color:var(--ink-2);white-space:nowrap;
  transition:color .24s var(--ease),background-color .24s var(--ease);
}
.dock-nav a:hover{color:var(--brand);background:var(--paper-2)}
.dock-nav a.is-active{color:var(--brand);font-weight:600}
.dock-nav a.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:3px;
  height:2px;border-radius:2px;background:var(--brand);
}
.dock-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.icon-btn{
  width:44px;height:44px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:var(--ink-2);transition:background-color .24s var(--ease),color .24s var(--ease);
}
.icon-btn:hover{background:var(--paper-2);color:var(--brand)}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:50%;
  align-items:center;justify-content:center;color:var(--brand);
}
.drawer{
  max-width:1080px;margin:10px auto 0;
  display:grid;grid-template-rows:0fr;
  transition:grid-template-rows .32s var(--ease);
}
.drawer.is-open{grid-template-rows:1fr}
.drawer-inner{
  overflow:hidden;border-radius:22px;
  background:rgba(250,248,244,.96);
  border:1px solid var(--line);
  box-shadow:var(--sh-3);
  backdrop-filter:blur(14px);
}
.drawer-inner ul{padding:10px}
.drawer-inner li a{
  display:block;padding:14px 16px;border-radius:14px;
  font-size:15.5px;color:var(--ink-2);
}
.drawer-inner li a:hover,.drawer-inner li a.is-active{background:var(--paper-2);color:var(--brand)}
.drawer-cta{padding:0 16px 16px}

/* ---------- 分类头区 ---------- */
.page-head{padding:clamp(32px,5vw,56px) 0 0}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13.5px;color:var(--muted);margin-bottom:20px;
}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb span.sep{color:var(--line)}
.breadcrumb .current{color:var(--ink)}
.page-head h1{margin-bottom:16px;max-width:15em}
.page-head .lead{
  font-size:17px;color:var(--ink-2);max-width:640px;margin-bottom:22px;
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:32px}
.head-media{
  border-radius:20px;overflow:hidden;position:relative;
  aspect-ratio:21/9;background:var(--paper-2);
}
.head-media img{width:100%;height:100%;object-fit:cover}
.head-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,61,58,0) 45%,rgba(15,61,58,.28));
}
.head-media .caption{
  position:absolute;left:24px;bottom:20px;z-index:2;color:#fff;
  font-size:13.5px;letter-spacing:.02em;
  font-family:var(--mono);
}

/* ---------- 图文交错流 ---------- */
.alt-row{
  display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,56px);
  align-items:center;
  padding:clamp(28px,4vw,48px) 0;
  border-bottom:1px solid var(--line);
}
.alt-row:last-of-type{border-bottom:0}
.alt-row.reverse .alt-text{order:2}
.alt-row.reverse .alt-media{order:1}
.alt-media{
  border-radius:var(--r-img);overflow:hidden;aspect-ratio:3/2;
  background:var(--paper-2);box-shadow:var(--sh-1);
  transition:box-shadow .32s var(--ease),transform .32s var(--ease);
}
.alt-media img{width:100%;height:100%;object-fit:cover}
.alt-row:hover .alt-media{box-shadow:var(--sh-2);transform:translateY(-4px)}
.alt-num{
  font-family:var(--mono);font-size:12px;letter-spacing:.08em;
  color:var(--accent);margin-bottom:12px;display:block;
}
.alt-text h3{font-size:clamp(20px,2vw,25px);margin-bottom:14px;line-height:1.4}
.alt-text p{color:var(--ink-2);font-size:16px;margin-bottom:18px}
.alt-points{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}
.alt-points li{
  font-size:13px;color:var(--muted);
  padding:5px 11px;border-radius:6px;background:var(--paper-2);
}

/* ---------- 引述条 ---------- */
.quote-band{
  background:var(--brand);color:var(--paper);
  border-radius:20px;
  padding:clamp(32px,5vw,52px);
  margin:clamp(32px,5vw,56px) 0;
  display:grid;grid-template-columns:56px 1fr;gap:24px;align-items:start;
}
.quote-band .qmark{
  font-family:var(--serif);font-size:56px;line-height:.8;color:var(--brand-300);
}
.quote-band blockquote{
  margin:0;font-family:var(--serif);font-weight:600;
  font-size:clamp(19px,2.1vw,26px);line-height:1.55;letter-spacing:-.01em;
}
.quote-band .qsub{
  margin-top:16px;font-size:13.5px;color:rgba(250,248,244,.72);
  font-family:var(--mono);letter-spacing:.02em;
}

/* ---------- 准备清单 ---------- */
.check-panel{
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px;
}
.check-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);
  transition:box-shadow .32s var(--ease),transform .32s var(--ease),border-color .32s var(--ease);
}
.check-card:hover{box-shadow:var(--sh-2);transform:translateY(-4px);border-color:var(--brand-300)}
.check-card .ico{
  width:40px;height:40px;border-radius:12px;background:rgba(15,61,58,.08);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
  color:var(--brand);
}
.check-card h4{font-size:17px;margin-bottom:10px}
.check-card p{font-size:14.5px;color:var(--muted);margin:0}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:1fr 1fr;gap:0 clamp(32px,5vw,72px);align-items:start}
.faq-list{border-top:1px solid var(--line)}
.faq-item{
  position:relative;border-bottom:1px solid var(--line);
  transition:background-color .24s var(--ease);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  border-radius:3px;background:var(--brand);
  opacity:0;transition:opacity .24s var(--ease);
}
.faq-item.is-open::before{opacity:1}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 0 20px 18px;text-align:left;
  font-size:17px;font-weight:500;color:var(--ink);
  transition:color .24s var(--ease);
}
.faq-q:hover{color:var(--brand)}
.faq-icon{
  position:relative;width:18px;height:18px;flex:0 0 auto;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand-600);border-radius:2px;
  transition:transform .32s var(--ease),opacity .32s var(--ease);
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .32s var(--ease)}
.faq-item.is-open .faq-a{grid-template-rows:1fr}
.faq-a-inner{overflow:hidden}
.faq-a-inner p{
  padding:0 0 22px 18px;font-size:15px;color:var(--ink-2);margin:0;max-width:52em;
}
.faq-aside{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-1);
}
.faq-aside h3{font-size:19px;margin-bottom:12px}
.faq-aside p{font-size:14.5px;color:var(--muted)}
.faq-aside ul{margin:18px 0 22px;display:grid;gap:12px}
.faq-aside li{
  display:flex;gap:10px;font-size:14.5px;color:var(--ink-2);
}
.faq-aside li b{font-family:var(--mono);color:var(--accent);font-weight:500}

/* ---------- CTA 表单 ---------- */
.cta-section{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cta-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,64px);align-items:start;
}
.cta-copy h2{margin-bottom:18px}
.cta-copy > p{color:var(--ink-2);font-size:16px}
.cta-points{margin-top:26px;display:grid;gap:14px}
.cta-points li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:15px;color:var(--ink-2);
}
.cta-points .dot{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  background:var(--brand);color:var(--paper);
  display:flex;align-items:center;justify-content:center;
  font-size:11px;font-family:var(--mono);margin-top:3px;
}
.form-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:clamp(24px,3vw,34px);box-shadow:var(--sh-3);
}
.form-card h3{font-size:19px;margin-bottom:6px}
.form-card .form-note{font-size:13.5px;color:var(--muted);margin-bottom:22px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13.5px;color:var(--ink-2);margin-bottom:8px}
.field input[type="text"],
.field input[type="tel"],
.field input[type="email"],
.field textarea{
  width:100%;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-input);padding:0 14px;height:50px;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.field textarea{height:auto;padding:12px 14px;min-height:104px;resize:vertical;line-height:1.7}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,61,58,.10);
}
.field input::placeholder,.field textarea::placeholder{color:#A9B0AD}
.agree{
  display:flex;gap:10px;align-items:flex-start;
  font-size:13.5px;color:var(--muted);margin:4px 0 20px;line-height:1.6;
}
.agree input{margin-top:4px;accent-color:var(--brand);width:16px;height:16px}
.form-tip{
  margin-top:14px;font-size:13.5px;color:var(--ok);display:none;
}
.form-tip.is-show{display:block}
.form-error{font-size:13px;color:var(--danger);margin-top:6px;display:none}
.form-error.is-show{display:block}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--paper-2);border-top:1px solid var(--line);
  padding:clamp(48px,6vw,76px) 0 26px;font-size:13.5px;color:var(--muted);
}
.site-footer .footer-brand p{margin-top:16px;max-width:32em;line-height:1.8}
.site-footer .brand-text{color:var(--ink)}
.footer-col h4{
  font-family:var(--sans);font-size:13.5px;font-weight:600;color:var(--ink);
  margin:0 0 16px;letter-spacing:.02em;
}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a,.footer-col ul li span{color:var(--muted)}
.footer-col ul li a:hover{color:var(--brand)}
.footer-bottom{
  margin-top:clamp(32px,4vw,48px);padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}
.margin-y-n{margin-top:0;margin-bottom:0}
.site-footer .margin-y-n + .margin-y-n{margin-top:0}
.site-footer .row{margin-bottom:0}

/* ---------- 入场动效 ---------- */
.reveal-up{opacity:0;transform:translateY(14px);transition:opacity .48s var(--ease),transform .48s var(--ease)}
.reveal-up.is-in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important}
  .reveal-up{opacity:1;transform:none;transition:opacity .48s var(--ease)}
  .alt-row:hover .alt-media,.check-card:hover{transform:none}
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .dock{width:calc(100% - 36px);border-radius:22px;padding:10px 14px}
  .dock-nav{display:none}
  .dock-actions .btn-cta,.dock-actions .icon-btn{display:none}
  .menu-toggle{display:flex}
  .drawer{width:calc(100% - 36px)}
  .alt-row{grid-template-columns:1fr;gap:24px}
  .alt-row.reverse .alt-text{order:0}
  .alt-row.reverse .alt-media{order:0}
  .check-panel{grid-template-columns:1fr 1fr}
  .faq-wrap{grid-template-columns:1fr;gap:32px}
  .cta-grid{grid-template-columns:1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .grid-container{padding-left:18px;padding-right:18px}
  .site-header{padding-top:12px}
  body{font-size:16px}
  .check-panel{grid-template-columns:1fr}
  .quote-band{grid-template-columns:1fr;gap:12px}
  .quote-band .qmark{font-size:44px}
  .page-head h1{max-width:none}
  .head-media{aspect-ratio:16/9;border-radius:16px}
  .head-media .caption{left:16px;bottom:14px;font-size:12.5px}
  .btn{width:100%}
  .form-card .btn{width:100%}
  .link-btn{width:auto}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  .alt-points li{font-size:12.5px}
  .faq-q{font-size:16px;padding:18px 0 18px 14px}
  .faq-a-inner p{padding-left:14px}
}

/* roulang page: category2 */
:root{
  --ink:#14181A;--ink-2:#3A4240;--muted:#6B7370;--line:#E2DCD1;
  --paper:#FAF8F4;--paper-2:#F1EDE5;--card:#FFFFFF;
  --brand:#0F3D3A;--brand-600:#14564F;--brand-300:#6FA398;
  --accent:#C97B3C;--accent-2:#A85B25;
  --ok:#2F7D5F;--danger:#B4453A;
  --r-card:18px;--r-img:14px;--r-input:12px;
  --sh1:0 1px 2px rgba(20,24,26,.05);
  --sh2:0 18px 40px rgba(15,61,58,.10);
  --sh3:0 10px 34px rgba(20,24,26,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --mono:"Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--sans);font-size:16.5px;line-height:1.85;
  font-weight:400;letter-spacing:0;text-rendering:optimizeLegibility;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--brand);text-decoration:none;transition:color .24s var(--ease);}
a:hover,a:focus{color:var(--accent-2);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(201,123,60,.22);}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:clamp(56px,7vw,104px) 0;}
.section-tight{padding-top:clamp(28px,3vw,44px);}
.sec-head{max-width:760px;margin-bottom:clamp(28px,3.6vw,44px);}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.08em;color:var(--brand);
  background:rgba(15,61,58,.08);border-radius:6px;padding:4px 10px;margin-bottom:14px;
}
h1,h2,h3,.serif{font-family:var(--serif);letter-spacing:-.01em;font-weight:700;}
h1{font-size:clamp(30px,3.6vw,46px);line-height:1.2;}
h2{font-size:clamp(24px,2.6vw,34px);line-height:1.28;}
h3{font-size:20px;line-height:1.45;}
.sec-sub{color:var(--muted);font-size:15.5px;margin-top:12px;max-width:680px;}
.mono{font-family:var(--mono);letter-spacing:.02em;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;background:var(--brand);color:var(--paper);
  transition:background .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
  box-shadow:var(--sh1);
}
.btn:hover,.btn:focus{background:var(--accent);color:#fff;transform:translateY(-1px);box-shadow:var(--sh2);}
.btn:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand);box-shadow:none;}
.btn-ghost:hover,.btn-ghost:focus{background:var(--paper-2);color:var(--brand-600);border-color:var(--brand-600);}
.btn-light{background:var(--paper);color:var(--brand);box-shadow:none;}
.btn-light:hover,.btn-light:focus{background:#fff;color:var(--accent-2);}
.btn-outline-light{background:transparent;color:var(--paper);border-color:rgba(250,248,244,.5);box-shadow:none;}
.btn-outline-light:hover,.btn-outline-light:focus{background:rgba(250,248,244,.14);color:#fff;border-color:rgba(250,248,244,.8);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;background:none;border:0;padding:0;
  color:var(--brand);font-size:15px;font-weight:600;cursor:pointer;min-height:44px;
}
.btn-link .arw{transition:transform .24s var(--ease);}
.btn-link:hover .arw,.btn-link:focus .arw{transform:translateX(3px);}
.btn-link:hover,.btn-link:focus{color:var(--accent-2);}

/* ---------- Dock 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;padding:16px 24px 0;}
.dock{
  max-width:1080px;margin:0 auto;display:flex;align-items:center;gap:16px;
  padding:10px 12px 10px 16px;border-radius:999px;
  background:rgba(250,248,244,.86);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);box-shadow:var(--sh3);
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:28px;height:28px;border-radius:8px;background:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 28px;
}
.brand-mark svg{width:16px;height:16px;display:block;}
.brand-text{font-size:15.5px;font-weight:600;letter-spacing:.02em;color:var(--ink);white-space:nowrap;}
.brand:hover .brand-text{color:var(--brand);}
.dock-nav{display:flex;align-items:center;gap:2px;margin-left:auto;}
.dock-nav a{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 14px;
  border-radius:999px;font-size:14.5px;color:var(--ink-2);white-space:nowrap;
  transition:color .24s var(--ease),background .24s var(--ease);
}
.dock-nav a:hover,.dock-nav a:focus{color:var(--brand);background:var(--paper-2);}
.dock-nav a.is-active{color:var(--brand);font-weight:600;}
.dock-nav a.is-active::after{
  content:"";position:absolute;left:50%;bottom:5px;width:18px;height:2px;
  background:var(--brand);border-radius:2px;transform:translateX(-50%);
}
.dock-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto;}
.dock-toggle{
  display:none;width:44px;height:44px;border-radius:999px;border:1px solid var(--line);
  background:var(--card);cursor:pointer;align-items:center;justify-content:center;
}
.dock-toggle span{display:block;width:16px;height:2px;background:var(--brand);position:relative;border-radius:2px;}
.dock-toggle span::before,.dock-toggle span::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:var(--brand);border-radius:2px;
  transition:transform .24s var(--ease);
}
.dock-toggle span::before{top:-5px;}
.dock-toggle span::after{top:5px;}
.dock-drawer{
  max-width:1080px;margin:10px auto 0;overflow:hidden;max-height:0;
  border-radius:24px;background:rgba(250,248,244,.96);border:1px solid transparent;
  transition:max-height .34s var(--ease),border-color .24s var(--ease);
}
.dock-drawer.is-open{max-height:440px;border-color:var(--line);box-shadow:var(--sh3);}
.dock-drawer ul{padding:10px;}
.dock-drawer a{
  display:flex;align-items:center;min-height:48px;padding:0 16px;border-radius:14px;
  color:var(--ink-2);font-size:15px;
}
.dock-drawer a.is-active{background:var(--paper-2);color:var(--brand);font-weight:600;}

/* ---------- 分类头区 ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);margin-bottom:20px;}
.crumb a{color:var(--muted);}
.crumb a:hover,.crumb a:focus{color:var(--brand);}
.crumb .sep{color:var(--line);}
.crumb .now{color:var(--ink);}
.cat-head{padding-top:clamp(36px,4.4vw,64px);}
.cat-head h1{max-width:900px;}
.cat-lead{margin-top:18px;font-size:17px;color:var(--ink-2);max-width:660px;}
.cat-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;letter-spacing:.06em;
  padding:5px 10px;border-radius:6px;background:var(--paper-2);color:var(--brand);border:1px solid var(--line);
}
.tag-accent{background:rgba(201,123,60,.12);color:var(--accent-2);border-color:rgba(201,123,60,.24);}
.cat-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}

.hero-figure{margin-top:clamp(28px,3.4vw,44px);}
.hero-figure img{
  width:100%;aspect-ratio:21/9;object-fit:cover;border-radius:20px;
  border:1px solid var(--line);box-shadow:var(--sh1);
}
.hero-figure figcaption{font-size:13px;color:var(--muted);margin-top:12px;text-align:center;}

/* ---------- 指标 ---------- */
.metrics{padding:clamp(40px,5vw,64px) 0;}
.metrics-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  border:1px solid var(--line);border-radius:var(--r-card);background:var(--card);
  box-shadow:var(--sh1);overflow:hidden;
}
.metric{padding:26px 24px;border-right:1px solid var(--line);}
.metric:last-child{border-right:0;}
.metric b{
  display:block;font-family:var(--mono);font-size:clamp(30px,3.4vw,42px);
  line-height:1.1;color:var(--brand);letter-spacing:.02em;
}
.metric b em{font-style:normal;font-size:.46em;margin-left:4px;color:var(--muted);letter-spacing:.04em;}
.metric span{display:block;font-size:13.5px;color:var(--muted);margin-top:10px;line-height:1.6;}

/* ---------- 对照条 ---------- */
.cmp-tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px;}
.cmp-tab{
  min-height:44px;padding:0 20px;border-radius:999px;border:1px solid var(--line);
  background:var(--card);color:var(--ink-2);font-size:14.5px;font-weight:500;cursor:pointer;
  transition:all .24s var(--ease);
}
.cmp-tab:hover{border-color:var(--brand-300);color:var(--brand);}
.cmp-tab.is-on{background:var(--brand);border-color:var(--brand);color:var(--paper);font-weight:600;box-shadow:var(--sh1);}
.cmp-panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh1);overflow:hidden;
}
.cmp-head-row,.cmp-row{
  display:grid;grid-template-columns:200px 1fr 84px 104px;align-items:center;gap:20px;
  padding:0 26px;
}
.cmp-head-row{
  height:52px;background:var(--paper-2);border-bottom:1px solid var(--line);
  font-size:12px;letter-spacing:.08em;color:var(--muted);
}
.cmp-head-row span:nth-child(3),.cmp-head-row span:nth-child(4){text-align:right;}
.cmp-row{min-height:68px;border-bottom:1px solid var(--line);transition:background .24s var(--ease);}
.cmp-row:last-child{border-bottom:0;}
.cmp-row:hover{background:var(--paper-2);}
.cmp-name{font-size:17px;color:var(--ink);font-family:var(--serif);font-weight:700;letter-spacing:-.01em;}
.cmp-bar{position:relative;height:8px;border-radius:999px;background:var(--paper-2);overflow:hidden;}
.cmp-bar i{
  position:absolute;left:0;top:0;bottom:0;border-radius:999px;background:var(--brand);
  transition:width .5s var(--ease),background .24s var(--ease);
}
.cmp-val{font-family:var(--mono);font-size:15px;text-align:right;color:var(--ink);letter-spacing:.02em;}
.cmp-state{text-align:right;font-size:12px;letter-spacing:.04em;color:var(--brand);}
.cmp-state.s-full{color:var(--ok);}
.cmp-state.s-part{color:var(--brand);}
.cmp-state.s-limit{color:var(--accent-2);}
.cmp-state.s-off{color:var(--muted);}
.cmp-note{font-size:13.5px;color:var(--muted);margin-top:16px;}

/* ---------- 引述条 ---------- */
.quote-band{
  background:var(--brand);color:var(--paper);border-radius:var(--r-card);
  padding:clamp(30px,4vw,48px);display:flex;gap:26px;align-items:flex-start;
  box-shadow:var(--sh2);
}
.quote-band .qmark{
  font-family:var(--serif);font-size:52px;line-height:1;color:var(--brand-300);flex:0 0 auto;
}
.quote-band p{font-family:var(--serif);font-size:clamp(19px,2.1vw,25px);line-height:1.55;letter-spacing:-.01em;}
.quote-band small{display:block;margin-top:14px;font-size:13.5px;color:rgba(250,248,244,.7);letter-spacing:.04em;font-family:var(--sans);}

/* ---------- 双列说明 ---------- */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:clamp(24px,2.6vw,32px);box-shadow:var(--sh1);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.panel:hover{transform:translateY(-4px);border-color:var(--brand-300);box-shadow:var(--sh2);}
.panel h3{margin-bottom:6px;}
.panel .panel-note{font-size:13.5px;color:var(--muted);margin-bottom:18px;}
.panel ul li{
  display:flex;gap:12px;padding:14px 0;border-bottom:1px dashed var(--line);
  font-size:15px;color:var(--ink-2);
}
.panel ul li:last-child{border-bottom:0;}
.panel ul li .dot{
  width:8px;height:8px;border-radius:50%;background:var(--accent);flex:0 0 8px;margin-top:12px;
}
.panel.alt .dot{background:var(--brand-300);}
.panel figcaption{font-size:13px;color:var(--muted);margin-top:16px;}

/* ---------- 图卡 ---------- */
.figure-card{
  border:1px solid var(--line);background:var(--card);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh1);margin-top:24px;
}
.figure-card img{width:100%;aspect-ratio:3/2;object-fit:cover;}
.figure-card .fc-body{padding:22px 26px 26px;}
.figure-card .fc-body h3{margin-bottom:8px;}
.figure-card .fc-body p{font-size:15px;color:var(--muted);}

/* ---------- FAQ ---------- */
.faq-list{border:1px solid var(--line);border-radius:var(--r-card);background:var(--card);overflow:hidden;box-shadow:var(--sh1);}
.faq-item{border-bottom:1px solid var(--line);transition:box-shadow .24s var(--ease),background .24s var(--ease);}
.faq-item:last-child{border-bottom:0;}
.faq-item.is-open{box-shadow:inset 3px 0 0 var(--brand);background:var(--paper);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 26px;background:none;border:0;cursor:pointer;text-align:left;
  font-family:var(--serif);font-size:17.5px;font-weight:700;color:var(--ink);letter-spacing:-.01em;
  transition:color .24s var(--ease);
}
.faq-q:hover{color:var(--brand);}
.faq-icon{position:relative;width:18px;height:18px;flex:0 0 18px;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
  transition:transform .32s var(--ease),opacity .32s var(--ease);
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px;}
.faq-icon::after{left:8px;top:0;width:2px;height:18px;}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .32s var(--ease);}
.faq-item.is-open .faq-a{grid-template-rows:1fr;}
.faq-a-inner{overflow:hidden;}
.faq-a-inner p{padding:0 26px 22px;font-size:15.5px;color:var(--ink-2);max-width:820px;}

/* ---------- CTA ---------- */
.cta-band{background:var(--brand);color:var(--paper);padding:clamp(48px,6vw,80px) 0;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{color:#fff;}
.cta-inner p{color:rgba(250,248,244,.78);margin-top:12px;font-size:15.5px;max-width:520px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--paper-2);border-top:1px solid var(--line);padding:clamp(44px,5vw,68px) 0 24px;margin-top:0;}
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto;}
.grid-x{display:flex;flex-wrap:wrap;margin-left:-12px;margin-right:-12px;}
.grid-x>.cell{padding-left:12px;padding-right:12px;}
.margin-x-n,.margin-y-n{margin-top:0;margin-bottom:0;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:13.5px;color:var(--muted);line-height:1.75;max-width:340px;}
.footer-col h4{font-size:14px;font-family:var(--sans);font-weight:600;color:var(--ink);margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a,.footer-col ul li span{font-size:13.5px;color:var(--muted);line-height:1.7;}
.footer-col ul li a:hover,.footer-col ul li a:focus{color:var(--brand);}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);margin-top:clamp(28px,3vw,40px);padding-top:20px;
  font-size:13.5px;color:var(--muted);
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .48s var(--ease),transform .48s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .dock-nav{display:none;}
  .dock-toggle{display:inline-flex;}
  .dock{padding:8px 10px 8px 14px;}
  .metrics-grid{grid-template-columns:1fr 1fr;}
  .metric:nth-child(2){border-right:0;}
  .metric:nth-child(1),.metric:nth-child(2){border-bottom:1px solid var(--line);}
  .cmp-head-row,.cmp-row{grid-template-columns:1fr 60px 84px;gap:14px;padding:0 18px;}
  .cmp-head-row span:nth-child(2),.cmp-row .cmp-bar{display:none;}
  .cmp-head-row span:nth-child(3),.cmp-head-row span:nth-child(4){text-align:right;}
  .cmp-head-row span:nth-child(3){display:none;}
  .cmp-head-row{grid-template-columns:1fr 84px;}
  .cmp-row{grid-template-columns:1fr 84px;}
  .cmp-value-wrap{display:none;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .wrap{padding:0 18px;}
  .grid-container{padding-left:18px;padding-right:18px;}
  .two-col{grid-template-columns:1fr;}
  .quote-band{flex-direction:column;gap:12px;}
  .quote-band .qmark{font-size:40px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .faq-q{padding:18px 18px;font-size:16.5px;}
  .faq-a-inner p{padding:0 18px 20px;}
}
@media (max-width:519px){
  .site-header{padding:12px 14px 0;}
  .brand-text{font-size:15px;}
  .metrics-grid{grid-template-columns:1fr;}
  .metric{border-right:0;border-bottom:1px solid var(--line);}
  .metric:last-child{border-bottom:0;}
  .cmp-row{grid-template-columns:1fr 66px;padding:0 16px;gap:10px;}
  .cmp-head-row{grid-template-columns:1fr 66px;padding:0 16px;}
  .cmp-name{font-size:16px;}
  .cat-actions .btn{width:100%;}
  .footer-bottom{flex-direction:column;}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --ink:#14181A; --ink-2:#3A4240; --muted:#6B7370; --line:#E2DCD1;
  --paper:#FAF8F4; --paper-2:#F1EDE5; --card:#FFFFFF;
  --brand:#0F3D3A; --brand-600:#14564F; --brand-300:#6FA398;
  --accent:#C97B3C; --accent-2:#A85B25;
  --ok:#2F7D5F; --danger:#B4453A;
  --serif:"Noto Serif SC","Songti SC","Source Han Serif SC",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --mono:"Roboto Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --r-card:18px; --r-img:14px; --r-input:12px;
  --sh-1:0 1px 2px rgba(20,24,26,.05);
  --sh-2:0 18px 40px rgba(15,61,58,.10);
  --sh-3:0 10px 34px rgba(20,24,26,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sec:clamp(56px,7vw,104px);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--sans);font-size:16.5px;line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;}
a:hover{color:var(--brand-600);}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4{font-family:var(--serif);font-weight:700;letter-spacing:-.01em;color:var(--ink);margin:0;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
::selection{background:rgba(201,123,60,.24);}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

/* ---------- 容器 ---------- */
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto;}
.grid-container.full{max-width:100%;padding:0;}
.section{padding:var(--sec) 0;}
.section.tight{padding:clamp(40px,5vw,64px) 0;}
.grid-x.grid-gutter{margin-left:-12px;margin-right:-12px;}
.grid-x.grid-gutter > .cell{padding-left:12px;padding-right:12px;margin-bottom:24px;}
.fade-in{opacity:0;transform:translateY(14px);transition:opacity .48s var(--ease),transform .48s var(--ease);}
.fade-in.is-visible{opacity:1;transform:none;}

/* ---------- Dock 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;padding:16px 18px 0;}
.dock{
  display:flex;align-items:center;gap:18px;max-width:1080px;margin:0 auto;
  padding:10px 12px 10px 18px;border:1px solid var(--line);border-radius:999px;
  background:rgba(250,248,244,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--sh-3);position:relative;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{width:28px;height:28px;border-radius:8px;background:var(--brand);display:inline-flex;align-items:center;justify-content:center;flex:0 0 28px;}
.brand-mark svg{width:18px;height:18px;}
.brand-text{font-family:var(--sans);font-size:15.5px;font-weight:600;letter-spacing:.02em;color:var(--ink);white-space:nowrap;}
.dock-nav{display:flex;align-items:center;gap:2px;margin-left:auto;}
.dock-nav a{
  position:relative;display:inline-flex;align-items:center;min-height:44px;
  padding:0 14px;font-size:14.5px;color:var(--ink-2);border-radius:999px;
  transition:color .24s var(--ease),background .24s var(--ease);
}
.dock-nav a:hover{color:var(--brand);background:rgba(15,61,58,.06);}
.dock-nav a.is-active{color:var(--brand);font-weight:600;}
.dock-nav a.is-active::after{
  content:"";position:absolute;left:50%;bottom:6px;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:var(--brand);
}
.dock-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.dock-cta{
  display:inline-flex;align-items:center;justify-content:center;min-height:44px;
  padding:0 20px;border-radius:999px;background:var(--brand);color:var(--paper);
  font-size:14.5px;font-weight:600;letter-spacing:.01em;border:1px solid var(--brand);
  transition:background .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.dock-cta:hover{background:var(--accent);border-color:var(--accent);color:#FFF8F1;transform:translateY(-1px);box-shadow:0 12px 26px rgba(201,123,60,.26);}
.dock-toggle{
  display:none;align-items:center;justify-content:center;width:44px;height:44px;
  border:1px solid var(--line);border-radius:999px;background:var(--card);cursor:pointer;
}
.dock-toggle span{display:block;width:16px;height:2px;background:var(--brand);position:relative;border-radius:2px;}
.dock-toggle span::before,.dock-toggle span::after{content:"";position:absolute;left:0;width:16px;height:2px;background:var(--brand);border-radius:2px;transition:transform .24s var(--ease);}
.dock-toggle span::before{top:-5px;}
.dock-toggle span::after{top:5px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border-radius:999px;font-size:15.5px;font-weight:600;
  letter-spacing:.01em;text-decoration:none;cursor:pointer;border:1px solid transparent;
  transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.btn-primary{background:var(--brand);border-color:var(--brand);color:var(--paper);}
.btn-primary:hover{background:var(--accent);border-color:var(--accent);color:#FFF8F1;transform:translateY(-1px);box-shadow:0 14px 28px rgba(201,123,60,.26);}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand);}
.btn-ghost:hover{background:var(--paper-2);color:var(--brand-600);}
.btn-block{width:100%;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand);
  position:relative;min-height:44px;
}
.link-arrow::after{content:"→";transition:transform .24s var(--ease);}
.link-arrow:hover::after{transform:translateX(3px);}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-block;font-size:12px;letter-spacing:.08em;line-height:1.4;
  padding:6px 12px;border-radius:6px;background:rgba(15,61,58,.08);color:var(--brand-600);
}
.badge.accent{background:rgba(201,123,60,.14);color:var(--accent-2);}
.eyebrow{font-size:12px;letter-spacing:.14em;color:var(--accent);font-family:var(--mono);text-transform:uppercase;}

/* ---------- 页面头区 ---------- */
.page-hero{padding:clamp(36px,5vw,64px) 0 clamp(20px,3vw,32px);}
.breadcrumb{font-size:13.5px;color:var(--muted);margin-bottom:20px;display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb span.sep{color:#C6BFB2;}
.breadcrumb span.current{color:var(--ink);}
.page-hero h1{font-size:clamp(30px,3.6vw,46px);line-height:1.2;margin:14px 0 16px;max-width:22ch;}
.page-hero .lede{font-size:17.5px;line-height:1.8;color:var(--ink-2);max-width:60ch;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.hero-figure{padding-bottom:clamp(24px,4vw,48px);}
.hero-figure img{width:100%;aspect-ratio:21/9;object-fit:cover;border-radius:20px;box-shadow:var(--sh-1);}

/* ---------- 指标带 ---------- */
.metric-band{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--paper-2);}
.metrics{display:grid;grid-template-columns:repeat(4,1fr);}
.metric{padding:28px 24px;border-right:1px solid var(--line);}
.metric:last-child{border-right:none;}
.metric b{display:block;font-family:var(--mono);font-weight:700;font-size:clamp(26px,3vw,36px);letter-spacing:.02em;color:var(--brand);line-height:1.15;}
.metric span{display:block;margin-top:8px;font-size:13.5px;color:var(--muted);line-height:1.6;}

/* ---------- 板块标题 ---------- */
.section-head{max-width:720px;margin-bottom:clamp(28px,4vw,44px);}
.section-head h2{font-size:clamp(24px,2.6vw,34px);line-height:1.28;margin:12px 0 12px;}
.section-head p{color:var(--muted);font-size:15.5px;line-height:1.8;}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;padding-left:64px;}
.timeline::before{content:"";position:absolute;left:19px;top:14px;bottom:14px;width:2px;background:var(--brand);opacity:.28;border-radius:2px;}
.tl-item{position:relative;margin-bottom:22px;}
.tl-item:last-child{margin-bottom:0;}
.tl-dot{
  position:absolute;left:-64px;top:26px;width:40px;height:40px;z-index:2;
  border-radius:50%;background:var(--card);border:2px solid var(--accent);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:12.5px;font-weight:700;color:var(--brand);letter-spacing:.02em;
}
.tl-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 26px;box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.tl-card:hover{transform:translateY(-4px);border-color:var(--brand-300);box-shadow:var(--sh-2);}
.tl-card h3{font-size:19px;line-height:1.45;margin-bottom:8px;}
.tl-card p{color:var(--muted);font-size:15px;line-height:1.8;}
.tl-meta{
  display:inline-flex;align-items:center;gap:8px;margin-top:14px;padding:5px 10px;border-radius:6px;
  background:rgba(15,61,58,.07);color:var(--brand-600);font-family:var(--mono);font-size:12.5px;letter-spacing:.02em;
}

/* ---------- 引述条 ---------- */
.quote-band{
  background:var(--brand);color:#E8EFEC;border-radius:20px;
  padding:clamp(28px,4vw,46px);position:relative;overflow:hidden;
}
.quote-band::before{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(111,163,152,.34),rgba(111,163,152,0));
}
.quote-band blockquote{margin:0;font-family:var(--serif);font-size:clamp(19px,2.2vw,25px);line-height:1.6;color:#F5F2EC;max-width:44ch;}
.quote-band .quote-by{margin-top:18px;font-size:13.5px;color:rgba(232,239,236,.72);font-family:var(--mono);letter-spacing:.04em;}

/* ---------- 准备清单 ---------- */
.prep-list{border-top:1px solid var(--line);}
.prep-list li{
  display:flex;gap:16px;align-items:flex-start;padding:18px 16px;border-bottom:1px solid var(--line);
  transition:background .24s var(--ease);
}
.prep-list li:hover{background:var(--paper-2);}
.prep-index{font-family:var(--mono);font-size:12.5px;color:var(--accent);padding-top:4px;flex:0 0 26px;}
.prep-list strong{display:block;font-size:16px;font-weight:600;color:var(--ink);margin-bottom:4px;font-family:var(--sans);}
.prep-list .desc{font-size:14.5px;color:var(--muted);line-height:1.75;}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);
}
.side-card h3{font-size:18px;margin-bottom:10px;}
.side-card p{font-size:14.5px;color:var(--muted);line-height:1.8;}
.cover-thumb{border-radius:var(--r-img);overflow:hidden;aspect-ratio:3/2;margin-bottom:20px;}
.cover-thumb img{width:100%;height:100%;object-fit:cover;}
.kv-row{display:flex;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px solid var(--line);font-size:14.5px;}
.kv-row:last-child{border-bottom:none;}
.kv-row b{font-family:var(--mono);color:var(--brand);font-weight:700;}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  margin-bottom:14px;overflow:hidden;transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.faq-item:hover{border-color:var(--brand-300);}
.faq-item.is-open{border-color:var(--brand-300);box-shadow:inset 3px 0 0 var(--brand),var(--sh-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px;background:none;border:0;cursor:pointer;text-align:left;
  font-family:var(--serif);font-size:17.5px;font-weight:700;color:var(--ink);min-height:44px;
}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 16px;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand);border-radius:2px;transition:transform .32s var(--ease),opacity .32s var(--ease);}
.faq-icon::before{left:0;top:7px;width:16px;height:2px;}
.faq-icon::after{left:7px;top:0;width:2px;height:16px;}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .32s var(--ease);}
.faq-a-inner{overflow:hidden;padding:0 20px;color:var(--muted);font-size:15px;line-height:1.85;}
.faq-item.is-open .faq-a{grid-template-rows:1fr;}
.faq-item.is-open .faq-a-inner{padding-bottom:20px;}

/* ---------- 表单 / CTA ---------- */
.cta-section{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.cta-points li{position:relative;padding-left:26px;margin-bottom:14px;font-size:15.5px;color:var(--ink-2);}
.cta-points li::before{
  content:"";position:absolute;left:0;top:10px;width:12px;height:2px;border-radius:2px;background:var(--accent);
}
.form-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:clamp(22px,3vw,32px);box-shadow:var(--sh-2);
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13.5px;color:var(--ink-2);margin-bottom:8px;}
.field input[type="text"],.field input[type="tel"],.field input[type="email"],.field textarea{
  width:100%;min-height:50px;padding:12px 14px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-input);transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.field textarea{min-height:104px;resize:vertical;line-height:1.7;}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,61,58,.10);}
.field.has-error input,.field.has-error textarea{border-color:var(--danger);}
.field-hint{font-size:13px;color:var(--danger);margin:6px 0 0;display:none;}
.field.has-error .field-hint{display:block;}
.field-check{display:flex;gap:10px;align-items:flex-start;}
.field-check input{width:18px;height:18px;margin-top:4px;accent-color:var(--brand);}
.field-check span{font-size:13.5px;color:var(--muted);line-height:1.7;}
.form-note{margin-top:14px;font-size:13px;color:var(--muted);}
.form-ok{
  display:none;margin-bottom:16px;padding:12px 14px;border-radius:10px;
  background:rgba(47,125,95,.10);color:var(--ok);font-size:14.5px;
}
.form-ok.show{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--paper-2);border-top:1px solid var(--line);padding:clamp(44px,5vw,72px) 0 26px;margin-top:0;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:13.5px;color:var(--muted);line-height:1.8;max-width:34ch;}
.footer-col h4{font-family:var(--sans);font-size:14px;font-weight:600;color:var(--ink);margin:0 0 16px;letter-spacing:.02em;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a,.footer-col ul span{font-size:13.5px;color:var(--muted);transition:color .24s var(--ease);}
.footer-col ul a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:clamp(28px,4vw,44px);padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13.5px;color:var(--muted);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .metric{padding:24px 18px;}
}
@media (max-width:1023px){
  .dock{flex-wrap:wrap;justify-content:space-between;border-radius:26px;padding:10px 14px;}
  .dock-toggle{display:inline-flex;}
  .dock-nav{
    display:none;width:100%;flex-direction:column;align-items:stretch;gap:2px;
    margin:10px 0 4px;padding-top:10px;border-top:1px solid var(--line);
  }
  .dock.is-open .dock-nav{display:flex;}
  .dock-nav a{width:100%;padding:0 14px;font-size:15px;}
  .dock-nav a.is-active::after{display:none;}
  .dock-nav a.is-active{background:rgba(15,61,58,.08);}
  .dock-actions{display:none;}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .metric:nth-child(1),.metric:nth-child(2){border-bottom:1px solid var(--line);}
  .metric:nth-child(2),.metric:nth-child(4){border-right:none;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .grid-container{padding-left:18px;padding-right:18px;}
  .section{padding:clamp(48px,9vw,72px) 0;}
  .page-hero h1{max-width:none;}
  .hero-figure img{aspect-ratio:16/9;}
}
@media (max-width:639px){
  .timeline{padding-left:46px;}
  .timeline::before{left:15px;}
  .tl-dot{left:-46px;width:32px;height:32px;font-size:11.5px;top:22px;}
  .tl-card{padding:20px;}
  .hero-actions .btn{width:100%;}
  .faq-q{font-size:16.5px;padding:18px;}
  .quote-band{border-radius:16px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .fade-in{opacity:1;transform:none;}
  .tl-card:hover,.btn:hover{transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category4 */
:root{
  --ink:#14181A; --ink-2:#3A4240; --muted:#6B7370; --line:#E2DCD1;
  --paper:#FAF8F4; --paper-2:#F1EDE5; --card:#FFFFFF;
  --brand:#0F3D3A; --brand-600:#14564F; --brand-300:#6FA398;
  --accent:#C97B3C; --accent-2:#A85B25;
  --ok:#2F7D5F; --danger:#B4453A;
  --r-card:18px; --r-img:14px; --r-input:12px; --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,24,26,.05);
  --sh-2:0 18px 40px rgba(15,61,58,.10);
  --sh-3:0 10px 34px rgba(20,24,26,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sec:clamp(56px,7vw,104px);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --mono:ui-monospace,"Roboto Mono",Menlo,Consolas,monospace;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0; background:var(--paper); color:var(--ink);
  font-family:var(--sans); font-size:16.5px; line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%; display:block;}
a{color:var(--brand); text-decoration:none; transition:color 240ms var(--ease);}
a:hover{color:var(--accent-2);}
button{font-family:inherit;}
h1,h2,h3,h4{font-family:var(--serif); font-weight:700; letter-spacing:-0.01em; color:var(--ink); margin:0;}
p{margin:0 0 1em;}
ul{margin:0; padding:0; list-style:none;}
:focus-visible{outline:2px solid var(--brand); outline-offset:2px; border-radius:6px;}
.skip-link{position:absolute; left:-9999px; top:0; background:var(--brand); color:var(--paper); padding:10px 18px; border-radius:0 0 12px 0; z-index:99;}
.skip-link:focus{left:0;}

.grid-container{max-width:1200px; margin:0 auto; padding-left:24px; padding-right:24px;}
.section{padding:var(--sec) 0;}
.section-head{margin-bottom:clamp(28px,4vw,48px); max-width:720px;}
.section-head h2{font-size:clamp(24px,2.6vw,34px); line-height:1.28;}
.section-head p{color:var(--muted); font-size:15.5px; margin-top:12px; margin-bottom:0;}
.eyebrow{display:inline-block; font-size:12px; letter-spacing:.08em; color:var(--brand); background:rgba(15,61,58,.08); border-radius:6px; padding:5px 10px; margin-bottom:14px; font-family:var(--mono);}

/* ---------- Dock 导航 ---------- */
.site-header{position:sticky; top:0; z-index:60; padding:16px 18px 0;}
.dock-shell{
  max-width:1080px; margin:0 auto; position:relative;
  display:flex; align-items:center; gap:18px;
  padding:10px 14px 10px 18px;
  background:rgba(250,248,244,.82); backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line); border-radius:var(--r-pill); box-shadow:var(--sh-3);
}
.brand{display:inline-flex; align-items:center; gap:10px; flex:0 0 auto;}
.brand-mark{
  width:28px; height:28px; border-radius:8px; background:var(--brand);
  display:inline-flex; align-items:center; justify-content:center; flex:0 0 28px;
}
.brand-mark svg{width:18px; height:18px;}
.brand-text{font-family:var(--sans); font-size:15.5px; font-weight:600; letter-spacing:.02em; color:var(--ink);}
.brand:hover .brand-text{color:var(--brand);}
.dock-nav{display:flex; align-items:center; gap:2px; margin-left:auto;}
.dock-nav a{
  position:relative; font-size:14px; color:var(--ink-2); padding:9px 13px;
  border-radius:var(--r-pill); min-height:44px; display:inline-flex; align-items:center;
  transition:background 240ms var(--ease), color 240ms var(--ease);
}
.dock-nav a:hover{background:var(--paper-2); color:var(--brand);}
.dock-nav a::after{
  content:""; position:absolute; left:50%; bottom:4px; height:2px; width:0; background:var(--brand);
  transform:translateX(-50%); transition:width 240ms var(--ease); border-radius:2px;
}
.dock-nav a.is-active{color:var(--brand); font-weight:600;}
.dock-nav a.is-active::after{width:20px;}
.dock-actions{display:flex; align-items:center; gap:10px; flex:0 0 auto;}
.icon-btn{
  width:44px; height:44px; border-radius:50%; border:1px solid var(--line); background:#fff;
  display:inline-flex; align-items:center; justify-content:center; cursor:pointer; color:var(--brand);
  transition:background 240ms var(--ease), border-color 240ms var(--ease);
}
.icon-btn:hover{background:var(--paper-2); border-color:var(--brand-300);}
.icon-btn svg{width:18px; height:18px;}
.burger{display:none; width:44px; height:44px; border-radius:50%; border:1px solid var(--line); background:#fff; cursor:pointer; color:var(--brand); align-items:center; justify-content:center;}
.burger svg{width:18px; height:18px;}
.dock-search{
  max-width:1080px; margin:10px auto 0; background:var(--card); border:1px solid var(--line);
  border-radius:16px; box-shadow:var(--sh-3); padding:8px 16px; display:flex; align-items:center; gap:10px;
}
.dock-search input{
  border:0; width:100%; height:44px; font-size:15px; color:var(--ink); background:transparent;
}
.dock-search input:focus{outline:none;}
.dock-search[hidden]{display:none;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  height:48px; padding:0 24px; border-radius:var(--r-pill); font-size:15px; font-weight:600;
  border:1px solid transparent; cursor:pointer; transition:all 240ms var(--ease); min-width:44px;
}
.btn-primary{background:var(--brand); color:var(--paper);}
.btn-primary:hover{background:var(--accent); color:#fff; transform:translateY(-1px);}
.btn-ghost{background:transparent; color:var(--brand); border-color:var(--brand);}
.btn-ghost:hover{background:var(--paper-2); color:var(--brand); transform:translateY(-1px);}
.btn-sm{height:40px; padding:0 18px; font-size:14px;}
.btn-block{width:100%;}
.link-more{display:inline-flex; align-items:center; gap:6px; font-size:14.5px; font-weight:600; color:var(--brand);}
.link-more svg{width:14px; height:14px; transition:transform 240ms var(--ease);}
.link-more:hover svg{transform:translateX(3px);}

/* ---------- 分类头区 ---------- */
.page-head{padding:clamp(36px,5vw,72px) 0 0;}
.crumbs{font-size:13.5px; color:var(--muted); margin-bottom:20px; display:flex; flex-wrap:wrap; gap:6px;}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{color:var(--line);}
.crumbs .now{color:var(--ink);}
.badge{
  display:inline-block; font-size:12px; letter-spacing:.04em; font-family:var(--mono);
  color:var(--brand); background:rgba(15,61,58,.08); border-radius:6px; padding:5px 10px; margin-bottom:16px;
}
.page-head h1{font-size:clamp(30px,3.6vw,46px); line-height:1.2; max-width:900px;}
.page-head .lead{margin-top:16px; margin-bottom:0; color:var(--ink-2); font-size:17px; max-width:760px;}
.page-cover-wrap{padding:clamp(28px,4vw,44px) 0 0;}
.page-cover{width:100%; aspect-ratio:21/9; object-fit:cover; border-radius:20px;}

/* ---------- 指标条 ---------- */
.metrics{background:var(--brand); border-radius:24px; padding:clamp(28px,4vw,50px) clamp(18px,3vw,40px); margin-top:clamp(40px,5vw,64px);}
.metrics .grid-x{align-items:stretch;}
.metric{padding:6px 20px; border-left:1px solid rgba(255,255,255,.14);}
.metric:first-child{border-left:0;}
.metric-value{
  font-family:var(--mono); font-size:clamp(36px,5vw,64px); line-height:1.05;
  color:#fff; letter-spacing:.02em; display:block;
}
.metric-value small{font-size:.42em; margin-left:4px; letter-spacing:.02em; color:rgba(255,255,255,.72); font-family:var(--sans);}
.metric-label{display:block; margin-top:12px; font-size:13.5px; line-height:1.6; color:rgba(255,255,255,.72);}

/* ---------- 验证环节行 ---------- */
.step-rows{border-top:1px solid var(--line); margin-top:8px;}
.step-row{
  display:flex; align-items:center; gap:20px; min-height:72px; padding:14px 8px 14px 16px;
  border-bottom:1px solid var(--line); transition:background 240ms var(--ease);
}
.step-row:hover{background:var(--paper-2);}
.step-row .no{font-family:var(--mono); font-size:12px; color:var(--accent); letter-spacing:.06em; flex:0 0 34px;}
.step-row .t{font-family:var(--serif); font-size:18px; font-weight:700; flex:1 1 auto;}
.step-row .d{color:var(--muted); font-size:14px; flex:1 1 340px; display:none;}
.step-row .st{font-family:var(--mono); font-size:13px; color:var(--ok); flex:0 0 auto;}
.step-row svg{width:16px; height:16px; color:var(--brand-300); flex:0 0 16px; transition:transform 240ms var(--ease);}
.step-row:hover svg{transform:translateX(3px); color:var(--accent);}

/* ---------- 卡片 ---------- */
.card{
  background:var(--card); border:1px solid var(--line); border-radius:var(--r-card);
  padding:clamp(22px,2.4vw,28px); box-shadow:var(--sh-1);
  transition:box-shadow 320ms var(--ease), border-color 320ms var(--ease), transform 320ms var(--ease);
}
.card:hover{box-shadow:var(--sh-2); border-color:var(--brand-300); transform:translateY(-4px);}
.card-static:hover{transform:none; box-shadow:var(--sh-1); border-color:var(--line);}
.card h3{font-size:19px; line-height:1.45; margin-bottom:10px;}
.card p{color:var(--muted); font-size:14.6px; margin-bottom:0;}

/* ---------- 双列资源区 ---------- */
.resource-section{padding:var(--sec) 0 0;}
.resource-right .sticky-stack{position:sticky; top:96px;}
.form-card h3{margin-bottom:6px;}
.form-card .form-sub{color:var(--muted); font-size:14px; margin-bottom:22px;}
.field{margin-bottom:18px;}
.field label{display:block; font-size:13.5px; font-weight:600; color:var(--ink-2); margin-bottom:8px;}
.field input[type="text"],.field input[type="tel"],.field input[type="email"],.field textarea{
  width:100%; border:1px solid var(--line); border-radius:var(--r-input); background:#fff;
  font-size:15px; color:var(--ink); font-family:inherit;
  transition:border-color 200ms var(--ease), box-shadow 200ms var(--ease); padding:0 14px; height:50px;
}
.field textarea{height:auto; min-height:112px; padding:12px 14px; line-height:1.7; resize:vertical;}
.field input:focus,.field textarea:focus{
  outline:none; border-color:var(--brand); box-shadow:0 0 0 3px rgba(15,61,58,.10);
}
.field input::placeholder,.field textarea::placeholder{color:#A8AFAC;}
.consent{display:flex; align-items:flex-start; gap:10px; font-size:13.5px; color:var(--ink-2); line-height:1.7;}
.consent input[type="checkbox"]{width:18px; height:18px; flex:0 0 18px; margin-top:3px; accent-color:var(--brand);}
.form-note{font-size:13px; color:var(--muted); margin-top:14px; margin-bottom:0;}
.form-tip{display:none; font-size:13.5px; color:var(--ok); margin-top:12px;}
.form-tip.show{display:block;}

.contact-card{margin-top:20px;}
.contact-card h3{font-size:17px;}
.contact-list li{
  display:flex; justify-content:space-between; gap:14px; padding:12px 0; border-bottom:1px solid var(--line);
  font-size:14px; color:var(--muted);
}
.contact-list li:last-child{border-bottom:0; padding-bottom:0;}
.contact-list .k{color:var(--ink-2); flex:0 0 auto;}
.contact-list .v{text-align:right;}

/* ---------- FAQ 手风琴 ---------- */
.accordion{border-top:1px solid var(--line); margin-top:6px;}
.accordion .accordion-item{position:relative; border-bottom:1px solid var(--line);}
.accordion .accordion-item::before{
  content:""; position:absolute; left:0; top:14px; bottom:14px; width:3px; border-radius:2px;
  background:var(--brand); opacity:0; transition:opacity 240ms var(--ease);
}
.accordion .accordion-item.is-open::before{opacity:1;}
.accordion-title{margin:0; font-size:17px;}
.accordion-title::before{display:none;}
.accordion-title button{
  width:100%; min-height:64px; background:transparent; border:0; cursor:pointer;
  display:flex; align-items:center; justify-content:space-between; gap:16px;
  padding:20px 4px 20px 16px; text-align:left; font-family:var(--serif); font-weight:700;
  font-size:17px; line-height:1.5; color:var(--ink); transition:color 240ms var(--ease);
}
.accordion-title button:hover{color:var(--brand);}
.sign{
  flex:0 0 26px; width:26px; height:26px; border-radius:50%; border:1px solid var(--line);
  display:inline-flex; align-items:center; justify-content:center; font-family:var(--sans);
  font-size:16px; font-weight:400; color:var(--brand); transition:transform 320ms var(--ease), background 240ms var(--ease);
}
.accordion-item.is-open .sign{transform:rotate(45deg); background:var(--paper-2);}
.accordion-content{display:grid; grid-template-rows:0fr; transition:grid-template-rows 320ms var(--ease);}
.accordion-item.is-open .accordion-content{grid-template-rows:1fr;}
.accordion-content > div{overflow:hidden;}
.accordion-content p{
  padding:0 4px 22px 16px; margin:0; color:var(--ink-2); font-size:15.5px; line-height:1.85;
}

/* ---------- 底部动作 ---------- */
.closing-actions{padding:var(--sec) 0 0;}
.action-row{display:flex; flex-wrap:wrap; gap:16px; justify-content:center;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--paper-2); border-top:1px solid var(--line); margin-top:var(--sec); padding:clamp(40px,5vw,64px) 0 0;}
.site-footer .grid-x{padding-bottom:12px;}
.footer-brand p{color:var(--muted); font-size:13.5px; margin-top:14px; max-width:320px; line-height:1.8;}
.footer-col h4{font-family:var(--sans); font-size:13.5px; font-weight:600; letter-spacing:.04em; color:var(--ink); margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a,.footer-col span{font-size:13.5px; color:var(--muted);}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  border-top:1px solid var(--line); margin-top:28px; padding:20px 0 28px;
  display:flex; flex-wrap:wrap; gap:10px 24px; justify-content:space-between;
  font-size:13.5px; color:var(--muted);
}

/* ---------- 动效 ---------- */
.reveal{opacity:0; transform:translateY(14px); transition:opacity 480ms var(--ease), transform 480ms var(--ease);}
.reveal.in-view{opacity:1; transform:none;}

@media (min-width:700px){
  .step-row .d{display:block;}
}
@media (max-width:1023px){
  .metric{border-left:0; padding:16px 4px;}
  .resource-right .sticky-stack{position:static; margin-top:32px;}
  .contact-card{margin-top:20px;}
}
@media (max-width:899px){
  .site-header{padding:12px 12px 0;}
  .dock-shell{flex-wrap:wrap; border-radius:20px; padding:10px 14px;}
  .dock-nav{
    display:none; order:3; width:100%; flex-direction:column; align-items:stretch; gap:2px;
    margin:12px 0 0; padding-top:12px; border-top:1px solid var(--line);
  }
  .dock-shell.is-open .dock-nav{display:flex;}
  .dock-nav a{border-radius:12px; padding:13px 14px;}
  .dock-nav a::after{display:none;}
  .dock-nav a.is-active{background:var(--paper-2);}
  .dock-actions{margin-left:auto;}
  .dock-actions .btn-sm{display:none;}
  .burger{display:inline-flex;}
  .dock-search{margin-top:12px;}
}
@media (max-width:639px){
  .grid-container{padding-left:18px; padding-right:18px;}
  .page-cover{aspect-ratio:16/10; border-radius:16px;}
  .metrics{border-radius:20px;}
  .btn{width:100%;}
  .action-row .btn{width:100%;}
  .step-row{gap:12px; padding-left:10px;}
  .step-row .t{font-size:16.5px;}
  .footer-bottom{flex-direction:column;}
}
@media (prefers-reduced-motion:reduce){
  .reveal{transition:opacity 480ms var(--ease); transform:none;}
  .card:hover,.btn:hover,.step-row svg,.link-more svg{transform:none;}
  .accordion-content{transition:none;}
}