/* roulang page: index */
/* ===================== 设计变量 ===================== */
:root{
  --c-primary:#17706B;
  --c-primary-hover:#125B57;
  --c-primary-soft:#E3F0EE;
  --c-accent:#E2873C;
  --c-accent-hover:#C9722B;
  --c-accent-soft:#FBEEE1;
  --c-aux:#6B6F8A;
  --c-aux-soft:#ECEDF3;
  --bg:#F7F5F1;
  --bg-card:#FFFFFF;
  --bg-deep:#10201F;
  --ink:#16211F;
  --ink-2:#4A5654;
  --ink-3:#7C8785;
  --line:#E2DED6;
  --ok:#2F8F6B;
  --warn:#C9722B;
  --err:#B4453A;

  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;

  --sh-1:0 1px 2px rgba(16,32,31,.05),0 8px 24px rgba(16,32,31,.06);
  --sh-2:0 2px 4px rgba(16,32,31,.06),0 16px 36px rgba(16,32,31,.12);

  --gap:24px;
  --sec:88px;
  --ease:200ms ease;

  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}

/* ===================== 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(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3{line-height:1.25;font-weight:700;letter-spacing:.2px;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px;}
::selection{background:var(--c-primary-soft);color:var(--c-primary-hover);}

.container{width:100%;max-width:1180px;margin:0 auto;padding:0 24px;}
.section{padding:var(--sec) 0;}
.section--tight{padding:56px 0;}
.section--deep{background:var(--bg-deep);color:#E8EDEB;}

/* 通用标题 */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap;}
.sec-head__text{max-width:620px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:1.4px;color:var(--c-primary);
  background:var(--c-primary-soft);border-radius:var(--r-pill);
  padding:5px 12px;margin-bottom:16px;font-weight:600;
}
.eyebrow--accent{color:var(--c-accent-hover);background:var(--c-accent-soft);}
.eyebrow--aux{color:var(--c-aux);background:var(--c-aux-soft);}
.sec-title{font-size:28px;margin-bottom:12px;}
.sec-desc{color:var(--ink-2);font-size:15px;max-width:600px;}

/* ===================== 按钮 ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform var(--ease),background var(--ease),color var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.btn:hover{transform:translateY(-1px);}
.btn:active{transform:translateY(0);}
.btn--primary{background:var(--c-primary);color:#fff;}
.btn--primary:hover{background:var(--c-primary-hover);}
.btn--accent{background:var(--c-accent);color:#fff;}
.btn--accent:hover{background:var(--c-accent-hover);}
.btn--ghost{border:1px solid var(--line);color:var(--ink);background:rgba(255,255,255,.7);}
.btn--ghost:hover{border-color:var(--c-primary);color:var(--c-primary);background:#fff;}
.btn--text{padding:0;height:auto;color:var(--c-primary);font-weight:600;}
.btn--text:hover{color:var(--c-accent-hover);}
.btn--text svg{transition:transform var(--ease);}
.btn--text:hover svg{transform:translateX(3px);}
.btn--sm{height:38px;padding:0 16px;font-size:14px;}
.btn--block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none;}

/* ===================== 浮动 Dock 导航 ===================== */
.site-dock{
  position:fixed;top:18px;left:0;right:0;z-index:200;
  display:flex;justify-content:center;
  padding:0 24px;pointer-events:none;
}
.dock-inner{
  pointer-events:auto;
  width:100%;max-width:1080px;height:64px;
  display:flex;align-items:center;gap:16px;
  padding:0 18px;
  background:rgba(255,255,255,.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  box-shadow:var(--sh-1);
  transition:height var(--ease),box-shadow var(--ease),background var(--ease);
}
.site-dock.is-scrolled .dock-inner{
  height:56px;
  background:rgba(255,255,255,.95);
  box-shadow:var(--sh-2);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand__mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:11px;
  background:linear-gradient(145deg,var(--c-primary),#1E8C85);
  display:flex;align-items:center;justify-content:center;color:#fff;
}
.brand__mark svg{width:19px;height:19px;}
.brand__text{display:flex;flex-direction:column;line-height:1.15;}
.brand__name{font-size:15px;font-weight:700;letter-spacing:.3px;}
.brand__sub{font-size:11px;color:var(--ink-3);letter-spacing:.4px;}
.dock-nav{display:flex;align-items:center;gap:2px;margin-left:10px;}
.dock-link{
  padding:8px 14px;border-radius:var(--r-pill);
  font-size:14px;color:var(--ink-2);transition:background var(--ease),color var(--ease);
}
.dock-link:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.dock-link.is-active{background:var(--c-primary-soft);color:var(--c-primary);font-weight:600;}
.dock-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.dock-icon-btn{
  width:38px;height:38px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:var(--ink-2);border:1px solid transparent;
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.dock-icon-btn:hover{background:var(--c-primary-soft);color:var(--c-primary);border-color:var(--c-primary-soft);}
.dock-icon-btn svg{width:18px;height:18px;}
.dock-toggle{display:none;width:38px;height:38px;border-radius:50%;align-items:center;justify-content:center;color:var(--ink-2);}
.dock-toggle:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.dock-toggle svg{width:20px;height:20px;}

/* 移动端抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,32,31,.42);
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);z-index:290;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);
  background:#fff;z-index:300;padding:26px 22px;
  display:flex;flex-direction:column;gap:8px;
  transform:translateX(102%);transition:transform 220ms ease;
  box-shadow:-14px 0 40px rgba(16,32,31,.16);
}
.drawer.is-open{transform:translateX(0);}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer__close{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--ink-2);}
.drawer__close:hover{background:var(--bg);}
.drawer__link{
  padding:13px 14px;border-radius:var(--r-md);font-size:15px;color:var(--ink-2);
  transition:background var(--ease),color var(--ease);
}
.drawer__link:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.drawer__link.is-active{background:var(--c-primary-soft);color:var(--c-primary);font-weight:600;}
.drawer__foot{margin-top:auto;display:flex;flex-direction:column;gap:10px;}
.drawer__search{
  display:flex;align-items:center;gap:8px;height:44px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-pill);color:var(--ink-3);font-size:14px;
}

/* ===================== Hero ===================== */
.hero{
  position:relative;overflow:hidden;
  padding:150px 0 84px;
  background:linear-gradient(180deg,#FBF9F5 0%,var(--bg) 100%);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(23,112,107,.055) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(23,112,107,.055) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(ellipse at 50% 0%,#000 12%,transparent 72%);
  -webkit-mask-image:radial-gradient(ellipse at 50% 0%,#000 12%,transparent 72%);
  pointer-events:none;
}
.hero__inner{position:relative;z-index:2;display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center;}
.hero__title{font-size:40px;line-height:1.22;margin-bottom:18px;letter-spacing:.4px;}
.hero__title em{font-style:normal;color:var(--c-primary);}
.hero__lead{font-size:17px;color:var(--ink-2);max-width:520px;margin-bottom:28px;}
.hero__actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:30px;}
.hero__badges{display:flex;gap:10px;flex-wrap:wrap;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;padding:5px 12px;border-radius:var(--r-pill);
}
.badge--primary{background:var(--c-primary-soft);color:var(--c-primary);}
.badge--accent{background:var(--c-accent-soft);color:var(--c-accent-hover);}
.badge--aux{background:var(--c-aux-soft);color:var(--c-aux);}
.hero__visual{position:relative;}
.hero__frame{
  border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-1);
  aspect-ratio:4/3;background:var(--c-primary-soft);
}
.hero__frame img{width:100%;height:100%;object-fit:cover;}
.hero__card{
  position:absolute;left:-18px;bottom:-22px;width:58%;max-width:270px;
  background:#fff;border-radius:var(--r-md);border:1px solid var(--line);
  box-shadow:var(--sh-2);padding:16px 18px;
}
.hero__card-top{display:flex;align-items:center;gap:8px;margin-bottom:8px;}
.dot{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px rgba(47,143,107,.14);}
.hero__card-top span{font-size:12px;color:var(--ink-3);letter-spacing:.5px;}
.hero__card-title{font-size:14px;font-weight:600;margin-bottom:4px;}
.hero__card-text{font-size:13px;color:var(--ink-3);line-height:1.6;}

/* ===================== 三步上手 ===================== */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:8px;}
.step{position:relative;padding:0 30px;}
.step:first-child{padding-left:0;}
.step:last-child{padding-right:0;}
.step + .step::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;
  border-left:1px dashed var(--line);
}
.step__num{
  display:inline-block;font-size:34px;font-weight:700;line-height:1;
  color:transparent;-webkit-text-stroke:1.4px var(--c-accent);
  margin-bottom:16px;letter-spacing:1px;
}
.step__title{font-size:18px;margin-bottom:10px;}
.step__text{font-size:14px;color:var(--ink-2);line-height:1.7;}
.step__meta{margin-top:14px;font-size:12px;color:var(--ink-3);display:flex;align-items:center;gap:6px;}

/* ===================== 案例证明 ===================== */
.proof{display:grid;grid-template-columns:1.08fr .92fr;gap:26px;align-items:stretch;}
.proof__main{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);background:#fff;box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease);
}
.proof__main:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.proof__main-img{aspect-ratio:16/10;overflow:hidden;background:var(--c-primary-soft);}
.proof__main-img img{width:100%;height:100%;object-fit:cover;}
.proof__main-body{padding:22px 24px 26px;}
.proof__main-body h3{font-size:19px;margin:12px 0 8px;}
.proof__main-body p{font-size:14px;color:var(--ink-2);}
.proof__side{display:flex;flex-direction:column;gap:18px;}
.proof__row{
  display:flex;align-items:center;gap:16px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px;box-shadow:var(--sh-1);flex:1;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.proof__row:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-primary-soft);}
.proof__row-icon{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  background:var(--c-primary-soft);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
}
.proof__row-icon svg{width:20px;height:20px;}
.proof__row h4{font-size:15px;margin-bottom:4px;}
.proof__row p{font-size:13px;color:var(--ink-3);}
.proof__row .arrow{margin-left:auto;color:var(--ink-3);transition:transform var(--ease),color var(--ease);}
.proof__row:hover .arrow{transform:translateX(3px);color:var(--c-accent);}

.stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  margin-top:52px;padding-top:40px;border-top:1px solid var(--line);
}
.stat__num{font-size:30px;font-weight:700;color:var(--c-primary);letter-spacing:.5px;}
.stat__num small{font-size:16px;font-weight:600;margin-left:2px;}
.stat__label{font-size:13px;color:var(--ink-3);margin-top:4px;}

/* ===================== FAQ ===================== */
.faq-wrap{display:grid;grid-template-columns:.82fr 1.18fr;gap:56px;align-items:start;}
.faq-wrap h2{font-size:28px;margin-bottom:14px;}
.faq-wrap .faq-lead{color:var(--ink-2);font-size:15px;margin-bottom:24px;}
.faq{
  border:1px solid var(--line);border-radius:var(--r-md);background:#fff;
  box-shadow:var(--sh-1);padding:6px 26px;
}
.faq details{border-top:1px solid var(--line);}
.faq details:first-child{border-top:none;}
.faq summary{
  list-style:none;cursor:pointer;padding:20px 34px 20px 0;position:relative;
  font-size:15px;font-weight:600;color:var(--ink);
  transition:color var(--ease);
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary:hover{color:var(--c-primary);}
.faq summary::after{
  content:"";position:absolute;right:2px;top:50%;width:9px;height:9px;
  border-right:2px solid var(--ink-3);border-bottom:2px solid var(--ink-3);
  transform:translateY(-70%) rotate(45deg);
  transition:transform var(--ease),border-color var(--ease);
}
.faq details[open] summary::after{transform:translateY(-30%) rotate(-135deg);border-color:var(--c-accent);}
.faq details[open] summary{color:var(--c-primary);}
.faq__body{padding:0 30px 22px 0;font-size:14px;color:var(--ink-2);line-height:1.8;}
.faq__body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
.faq__body a:hover{color:var(--c-accent-hover);}

/* ===================== 立即开通 ===================== */
.cta-band{
  position:relative;overflow:hidden;background:var(--bg-deep);color:#E9EFED;
  border-radius:var(--r-lg);
  padding:52px 48px;
  display:grid;grid-template-columns:1.02fr .98fr;gap:52px;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(circle at 12% 18%,rgba(23,112,107,.42),transparent 42%),
                   radial-gradient(circle at 88% 82%,rgba(226,135,60,.2),transparent 46%);
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{font-size:27px;margin-bottom:14px;color:#fff;}
.cta-band .cta-lead{font-size:15px;color:#AEBDB9;margin-bottom:22px;max-width:420px;}
.cta-list{display:flex;flex-direction:column;gap:10px;}
.cta-list li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:#C8D4D1;}
.cta-list svg{width:17px;height:17px;flex:0 0 17px;margin-top:4px;color:var(--c-accent);}

.form-card{
  background:#fff;color:var(--ink);border-radius:var(--r-lg);
  padding:30px 28px;box-shadow:var(--sh-2);
}
.form-card h3{font-size:18px;margin-bottom:6px;}
.form-card .form-note{font-size:13px;color:var(--ink-3);margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:7px;color:var(--ink-2);}
.field input,
.field select{
  width:100%;height:44px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-sm);
  background:#fff;font-size:14px;color:var(--ink);
  transition:border-color var(--ease),box-shadow var(--ease);
  appearance:none;-webkit-appearance:none;
}
.field select{
  background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%237C8785' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 12px center;background-size:16px;
  padding-right:36px;
}
.field input:focus,
.field select:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(23,112,107,.14);}
.field.has-error input,
.field.has-error select{border-color:var(--err);}
.field__err{display:none;font-size:12px;color:var(--err);margin-top:6px;}
.field.has-error .field__err{display:block;}
.form-privacy{font-size:12px;color:var(--ink-3);margin-top:12px;line-height:1.6;}
.form-ok{
  display:none;margin-top:14px;padding:11px 14px;border-radius:var(--r-sm);
  background:rgba(47,143,107,.1);color:var(--ok);font-size:13px;font-weight:600;
}
.form-ok.is-show{display:block;}

.trust-row{
  display:flex;gap:34px;flex-wrap:wrap;justify-content:center;
  margin-top:34px;
}
.trust-item{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-2);}
.trust-item svg{width:18px;height:18px;color:var(--c-primary);}

/* ===================== 最新信息（CMS） ===================== */
.news-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.news-card{
  display:flex;flex-direction:column;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-primary-soft);}
.news-card--lead{grid-column:span 2;}
.news-card__media{aspect-ratio:16/9;overflow:hidden;background:var(--c-primary-soft);}
.news-card--lead .news-card__media{aspect-ratio:16/8;}
.news-card__media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms ease;}
.news-card:hover .news-card__media img{transform:scale(1.035);}
.news-card__body{padding:20px;display:flex;flex-direction:column;flex:1;}
.news-card__title{
  font-size:16px;font-weight:600;line-height:1.5;margin:12px 0 8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card--lead .news-card__title{font-size:19px;}
.news-card__desc{
  font-size:13px;color:var(--ink-2);line-height:1.7;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card__foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:12px;color:var(--ink-3);padding-top:14px;border-top:1px solid var(--line);
}
.news-card__read{display:inline-flex;align-items:center;gap:5px;color:var(--c-primary);font-weight:600;}
.news-card:hover .news-card__read svg{transform:translateX(3px);}
.news-card__read svg{width:14px;height:14px;transition:transform var(--ease);}

.empty-state{
  grid-column:1/-1;text-align:center;padding:54px 24px;
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-md);
}
.empty-state svg{width:64px;height:64px;color:var(--line);margin:0 auto 18px;}
.empty-state p{font-size:14px;color:var(--ink-3);margin-bottom:18px;}

/* ===================== 页脚 ===================== */
.site-footer{background:var(--bg-deep);color:#B9C6C3;padding:70px 0 0;margin-top:88px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.15fr;gap:44px;padding-bottom:52px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand__mark{background:rgba(255,255,255,.08);}
.footer-brand .brand__name{color:#fff;}
.footer-brand .brand__sub{color:#7E8D8A;}
.footer-desc{font-size:13.5px;line-height:1.85;color:#93A29F;max-width:330px;}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:18px;font-weight:600;}
.footer-col li{margin-bottom:11px;}
.footer-col a{font-size:13.5px;color:#93A29F;transition:color var(--ease);}
.footer-col a:hover{color:var(--c-accent);}
.footer-contact li{font-size:13.5px;color:#93A29F;display:flex;gap:9px;align-items:flex-start;}
.footer-contact svg{width:15px;height:15px;margin-top:5px;color:var(--c-primary);flex:0 0 15px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.09);
  padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:#7E8D8A;
}

/* ===================== 响应式 ===================== */
@media (max-width:1279px){
  .container{padding:0 24px;}
  .hero__title{font-size:34px;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .news-card--lead{grid-column:span 2;}
}
@media (max-width:1023px){
  :root{--sec:72px;}
  .hero{padding:132px 0 68px;}
  .hero__inner{grid-template-columns:1fr;gap:44px;}
  .hero__lead{max-width:none;}
  .hero__card{left:auto;right:14px;bottom:-18px;width:62%;}
  .steps{grid-template-columns:1fr 1fr;gap:34px 0;}
  .step:nth-child(3){padding-left:0;}
  .step:nth-child(3)::before{display:none;}
  .proof{grid-template-columns:1fr;}
  .stats{grid-template-columns:repeat(2,1fr);gap:26px;}
  .faq-wrap{grid-template-columns:1fr;gap:30px;}
  .cta-band{grid-template-columns:1fr;padding:40px 32px;gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:900px){
  .site-dock{top:auto;bottom:14px;padding:0 14px;}
  .dock-inner{height:58px;padding:0 12px;gap:8px;}
  .site-dock.is-scrolled .dock-inner{height:54px;}
  .dock-nav{display:none;}
  .brand__sub{display:none;}
  .brand__mark{width:30px;height:30px;flex:0 0 30px;border-radius:10px;}
  .dock-icon-btn{display:none;}
  .dock-toggle{display:flex;}
  .dock-actions{gap:6px;}
  .dock-actions .btn{height:38px;padding:0 15px;font-size:13.5px;}
  .site-footer{padding-bottom:82px;}
}
@media (max-width:767px){
  :root{--sec:56px;}
  .container{padding:0 18px;}
  .hero{padding:118px 0 56px;}
  .hero__title{font-size:28px;}
  .hero__lead{font-size:15.5px;}
  .sec-title{font-size:21px;}
  .sec-head{margin-bottom:30px;}
  .hero__actions .btn{flex:1;min-width:140px;}
  .hero__card{position:static;width:100%;max-width:none;margin-top:16px;left:auto;right:auto;bottom:auto;box-shadow:var(--sh-1);}
  .steps{grid-template-columns:1fr;gap:0;}
  .step{padding:0 0 26px 26px;position:relative;}
  .step::before{
    content:"";position:absolute;left:5px;top:8px;bottom:-6px;
    border-left:1px dashed var(--line);display:block !important;
  }
  .step:last-child::before{display:none !important;}
  .step:first-child{padding-left:26px;}
  .step:last-child{padding-bottom:0;}
  .step__num{font-size:26px;position:relative;}
  .step__num::before{
    content:"";position:absolute;left:-26px;top:50%;transform:translateY(-50%);
    width:11px;height:11px;border-radius:50%;background:var(--c-accent);
    box-shadow:0 0 0 4px rgba(226,135,60,.16);
  }
  .stats{grid-template-columns:1fr 1fr;gap:22px;margin-top:36px;padding-top:30px;}
  .stat__num{font-size:24px;}
  .faq{padding:4px 18px;}
  .faq summary{font-size:14.5px;padding:17px 30px 17px 0;}
  .faq__body{padding:0 26px 18px 0;}
  .cta-band{padding:32px 22px;border-radius:var(--r-md);}
  .cta-band h2{font-size:22px;}
  .form-card{padding:24px 20px;}
  .news-grid{grid-template-columns:1fr;gap:18px;}
  .news-card--lead{grid-column:span 1;}
  .news-card--lead .news-card__media{aspect-ratio:16/9;}
  .news-card--lead .news-card__title{font-size:17px;}
  .trust-row{gap:20px;justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:36px;}
  .site-footer{padding-top:52px;}
}
@media (max-width:420px){
  .hero__title{font-size:25px;}
  .sec-title{font-size:19px;}
  .btn{height:42px;font-size:14px;}
  .stats{grid-template-columns:1fr;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
:root{
  --c-primary:#17706B;
  --c-primary-hover:#125B57;
  --c-primary-soft:#E3F0EE;
  --c-accent:#E2873C;
  --c-accent-hover:#C9722B;
  --c-accent-soft:#FBEEE1;
  --c-aux:#6B6F8A;
  --c-aux-soft:#ECEDF4;
  --bg:#F7F5F1;
  --bg-card:#FFFFFF;
  --bg-deep:#10201F;
  --ink:#16211F;
  --ink-2:#4A5654;
  --ink-3:#7C8785;
  --line:#E2DED6;
  --ok:#2F8F6B;
  --err:#B4453A;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,32,31,.05),0 8px 24px rgba(16,32,31,.06);
  --sh-2:0 2px 6px rgba(16,32,31,.07),0 16px 34px rgba(16,32,31,.10);
  --container:1180px;
  --sec:88px;
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  padding-top:110px;
}
img{max-width:100%;display:block;border-radius:var(--r-md);}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-accent);}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:.2px;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:6px;}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- Dock 导航 ---------- */
.site-header{position:fixed;top:18px;left:0;right:0;z-index:120;pointer-events:none;}
.dock{
  pointer-events:auto;
  max-width:1080px;
  margin:0 auto;
  height:64px;
  display:flex;
  align-items:center;
  gap:16px;
  padding:0 14px 0 18px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.88);
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
  backdrop-filter:blur(12px);
  transition:height .2s ease,box-shadow .2s ease,background .2s ease;
}
.site-header.is-scrolled .dock{height:56px;background:rgba(255,255,255,.96);box-shadow:var(--sh-2);}
.brand{display:flex;align-items:center;gap:10px;flex:none;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand__mark{
  width:34px;height:34px;flex:none;display:grid;place-items:center;
  border-radius:10px;background:var(--c-primary);color:#fff;
}
.brand__mark svg{width:19px;height:19px;}
.brand__text{display:flex;flex-direction:column;line-height:1.15;}
.brand__name{font-size:15px;font-weight:700;letter-spacing:.5px;}
.brand__sub{font-size:11px;color:var(--ink-3);letter-spacing:.6px;}
.dock-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.dock-link{
  padding:8px 14px;border-radius:var(--r-pill);
  font-size:14px;color:var(--ink-2);white-space:nowrap;
  transition:background .2s ease,color .2s ease;
}
.dock-link:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.dock-link.is-active{background:var(--c-primary-soft);color:var(--c-primary);font-weight:600;}
.dock-actions{display:flex;align-items:center;gap:8px;flex:none;}
.icon-btn{
  width:38px;height:38px;display:grid;place-items:center;
  border-radius:var(--r-pill);border:1px solid var(--line);background:#fff;color:var(--ink-2);
  transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
.icon-btn:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-1px);}
.icon-btn svg{width:17px;height:17px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn svg{width:16px;height:16px;}
.btn--primary{background:var(--c-primary);color:#fff;}
.btn--primary:hover{background:var(--c-primary-hover);color:#fff;transform:translateY(-1px);}
.btn--accent{background:var(--c-accent);color:#fff;}
.btn--accent:hover{background:var(--c-accent-hover);color:#fff;transform:translateY(-1px);}
.btn--ghost{border:1px solid var(--line);color:var(--ink);background:#fff;}
.btn--ghost:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-1px);}
.btn--text{padding:0 4px;height:auto;color:var(--c-primary);font-weight:600;}
.btn--text:hover{color:var(--c-accent);}
.btn--sm{height:40px;padding:0 18px;font-size:14px;}
.btn:active{transform:translateY(0);}
.btn[disabled]{opacity:.5;pointer-events:none;}
.hamburger{display:none;}

/* 搜索面板 */
.search-panel{
  pointer-events:auto;
  display:none;
  max-width:1080px;margin:10px auto 0;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-2);padding:14px;
}
.search-panel.is-open{display:block;}
.search-form{display:flex;gap:10px;}
.search-form input{
  flex:1;height:44px;padding:0 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;outline:none;
}
.search-form input:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px var(--c-primary-soft);}

/* 移动抽屉 */
.drawer-backdrop{
  position:fixed;inset:0;background:rgba(16,32,31,.42);
  opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease;z-index:130;
}
.drawer-backdrop.is-open{opacity:1;visibility:visible;}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);
  background:#fff;z-index:140;padding:26px 22px;
  display:flex;flex-direction:column;gap:8px;
  transform:translateX(105%);transition:transform .22s ease;
  box-shadow:-12px 0 40px rgba(16,32,31,.14);
}
.nav-drawer.is-open{transform:translateX(0);}
.nav-drawer .drawer-title{font-size:13px;color:var(--ink-3);margin:6px 0 10px;}
.nav-drawer a.drawer-link{
  padding:12px 14px;border-radius:var(--r-md);color:var(--ink-2);font-size:15px;
  border:1px solid transparent;
}
.nav-drawer a.drawer-link:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.nav-drawer a.drawer-link.is-active{background:var(--c-primary-soft);color:var(--c-primary);font-weight:600;}
.drawer-close{align-self:flex-end;width:38px;height:38px;border-radius:var(--r-pill);border:1px solid var(--line);display:grid;place-items:center;color:var(--ink-2);}
.drawer-cta{margin-top:auto;display:grid;gap:10px;}

/* ---------- 文章头部 ---------- */
.article-hero{padding:26px 0 34px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:18px;}
.breadcrumb a{color:var(--ink-3);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb span.sep{color:#C9C4BA;}
.article-head{max-width:820px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);font-size:12px;font-weight:600;line-height:1.6;
}
.badge--teal{background:var(--c-primary-soft);color:var(--c-primary);}
.badge--orange{background:var(--c-accent-soft);color:var(--c-accent-hover);}
.badge--violet{background:var(--c-aux-soft);color:var(--c-aux);}
.article-head h1{font-size:40px;margin:16px 0 16px;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13.5px;color:var(--ink-3);}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C9C4BA;display:inline-block;}
.hero-cover{margin-top:30px;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);}
.hero-cover img{width:100%;height:340px;object-fit:cover;border-radius:0;}

/* ---------- 文章布局 ---------- */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:48px;
  align-items:start;
  padding-bottom:8px;
}
.article-body{max-width:760px;font-size:16.5px;color:var(--ink);}
.article-body > * + *{margin-top:18px;}
.article-body p{color:var(--ink-2);}
.article-body h2{
  position:relative;font-size:26px;margin:44px 0 18px;padding-left:16px;color:var(--ink);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.32em;width:4px;height:18px;border-radius:2px;background:var(--c-accent);
}
.article-body h3{font-size:20px;margin:30px 0 12px;color:var(--ink);}
.article-body ul,.article-body ol{padding-left:22px;color:var(--ink-2);}
.article-body ul{list-style:none;}
.article-body ul li{position:relative;padding-left:16px;margin:8px 0;}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--c-primary);
}
.article-body ol{list-style:decimal;}
.article-body ol li{margin:8px 0;}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--c-accent);}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;border-left:3px solid var(--c-primary);
  background:var(--c-primary-soft);border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--ink-2);
}
.article-body img{border-radius:var(--r-md);margin:22px 0;width:100%;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:8px;}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden;font-size:15px;}
.article-body th{background:var(--c-primary-soft);color:var(--c-primary);text-align:left;}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);}
.article-body tr:last-child td{border-bottom:none;}
.article-body code{background:#EFEDE7;padding:2px 6px;border-radius:6px;font-size:14px;}

/* 侧栏 */
.article-side{position:sticky;top:112px;display:grid;gap:16px;}
.side-card{background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;box-shadow:var(--sh-1);}
.side-card h3{font-size:16px;margin-bottom:14px;}
.side-list{display:grid;gap:12px;}
.side-list a{
  display:block;padding:12px 14px;border-radius:var(--r-md);border:1px solid var(--line);
  color:var(--ink);font-size:14.5px;transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.side-list a:hover{border-color:var(--c-primary);transform:translateY(-2px);box-shadow:var(--sh-1);color:var(--ink);}
.side-list span{display:block;font-size:12.5px;color:var(--ink-3);margin-top:4px;}
.side-card--deep{background:var(--bg-deep);border-color:transparent;color:#E9EFEE;}
.side-card--deep h3{color:#fff;}
.side-card--deep p{font-size:13.5px;color:#B7C4C2;margin-bottom:16px;}

/* 标签行 */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;padding:40px 0 8px;border-top:1px solid var(--line);margin-top:48px;}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);font-size:13px;color:var(--ink-2);
  transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
.tag:hover{border-color:var(--c-accent);color:var(--c-accent-hover);transform:translateY(-1px);}

/* 空态 */
.empty-state{
  display:grid;justify-items:center;gap:14px;text-align:center;
  padding:56px 24px;background:var(--bg-card);border:1px dashed var(--line);border-radius:var(--r-lg);
}
.empty-state svg{width:52px;height:52px;color:var(--c-primary);opacity:.7;}
.empty-state p{color:var(--ink-3);font-size:15px;max-width:420px;}

/* ---------- 区块通用 ---------- */
.section{padding:var(--sec) 0;}
.section--tight{padding:56px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px;}
.section-head h2{font-size:28px;}
.section-head p{font-size:14.5px;color:var(--ink-3);margin-top:8px;}
.eyebrow{font-size:12.5px;letter-spacing:2px;color:var(--c-accent);font-weight:700;text-transform:uppercase;margin-bottom:10px;}

/* 相关推荐卡 */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D6D1C7;}
.card__media{position:relative;aspect-ratio:16/9;overflow:hidden;}
.card__media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .3s ease;}
.card:hover .card__media img{transform:scale(1.04);}
.card__media .badge{position:absolute;top:12px;left:12px;background:rgba(255,255,255,.94);}
.card__body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card__title{
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card__desc{
  font-size:14px;color:var(--ink-2);
  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;font-size:13px;color:var(--ink-3);}
.card__foot .go{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-weight:600;transition:transform .2s ease;}
.card:hover .card__foot .go{transform:translateX(2px);}

/* 上一篇 下一篇 */
.post-nav{
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  padding:26px 0 0;margin-top:26px;border-top:1px solid var(--line);
}
.post-nav .links{display:flex;gap:18px;flex-wrap:wrap;font-size:14.5px;}

/* FAQ */
.faq-wrap{display:grid;grid-template-columns:360px minmax(0,1fr);gap:48px;align-items:start;}
.faq-wrap h2{font-size:28px;margin-bottom:14px;}
.faq-wrap .lead{color:var(--ink-2);font-size:15px;margin-bottom:20px;max-width:340px;}
.faq-list{border-top:1px solid var(--line);}
.faq-list details{border-bottom:1px solid var(--line);}
.faq-list summary{
  list-style:none;cursor:pointer;padding:18px 34px 18px 0;position:relative;
  font-size:16px;font-weight:600;color:var(--ink);
}
.faq-list summary::-webkit-details-marker{display:none;}
.faq-list summary::after{
  content:"";position:absolute;right:6px;top:50%;width:9px;height:9px;
  border-right:2px solid var(--c-primary);border-bottom:2px solid var(--c-primary);
  transform:translateY(-70%) rotate(45deg);transition:transform .2s ease;
}
.faq-list details[open] summary::after{transform:translateY(-30%) rotate(-135deg);}
.faq-list .answer{padding:0 34px 18px 0;color:var(--ink-2);font-size:14.5px;}

/* CTA 窄条 */
.cta-band{
  position:relative;overflow:hidden;background:var(--bg-deep);border-radius:var(--r-lg);
  padding:36px 40px;display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(circle at 12% 30%,rgba(23,112,107,.55),transparent 42%),
                   radial-gradient(circle at 88% 70%,rgba(226,135,60,.28),transparent 42%);
  opacity:.7;pointer-events:none;
}
.cta-band > *{position:relative;z-index:1;}
.cta-band h2{font-size:24px;color:#fff;margin-bottom:8px;}
.cta-band p{font-size:14.5px;color:#B7C4C2;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-deep);color:#C7D2D0;margin-top:var(--sec);padding:64px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand__mark{background:rgba(255,255,255,.10);color:#8FD3CB;}
.footer-brand .brand__name{color:#fff;font-size:15px;font-weight:700;display:block;}
.footer-brand .brand__sub{color:#8FA3A0;font-size:11px;letter-spacing:.6px;}
.footer-desc{font-size:13.5px;color:#9CACAA;max-width:320px;line-height:1.8;}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:16px;font-weight:600;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:13.5px;color:#9CACAA;}
.footer-col a:hover{color:var(--c-accent);}
.footer-contact li{display:flex;gap:10px;font-size:13.5px;color:#9CACAA;line-height:1.7;}
.footer-contact svg{width:16px;height:16px;flex:none;margin-top:4px;color:#8FD3CB;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.10);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12.5px;color:#7E908E;
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .article-head h1{font-size:34px;}
  .article-layout{grid-template-columns:minmax(0,1fr) 268px;gap:34px;}
  .hero-cover img{height:300px;}
}
@media (max-width:1023px){
  :root{--sec:72px;}
  body{padding-top:104px;}
  .dock-nav{display:none;}
  .hamburger{display:grid;}
  .brand__sub{display:none;}
  .article-layout{grid-template-columns:minmax(0,1fr);}
  .article-side{position:static;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .faq-wrap{grid-template-columns:1fr;gap:26px;}
  .faq-wrap .lead{max-width:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  body{padding-top:92px;padding-bottom:76px;}
  .site-header{top:auto;bottom:14px;}
  .dock{height:60px;max-width:calc(100% - 24px);margin:0 auto;padding:0 12px;}
  .site-header.is-scrolled .dock{height:56px;}
  .dock-actions .btn--accent{height:40px;padding:0 16px;font-size:14px;}
  .article-head h1{font-size:28px;}
  .hero-cover img{height:210px;}
  .article-body{font-size:16px;}
  .article-body h2{font-size:21px;}
  .article-body h3{font-size:17px;}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
  .section{padding:56px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .section-head h2{font-size:21px;}
  .card-grid{grid-template-columns:1fr;}
  .cta-band{padding:28px 22px;}
  .cta-band h2{font-size:20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;}
  .post-nav{flex-direction:column;align-items:flex-start;}
}
@media (max-width:420px){
  .container{padding:0 18px;}
  .article-head h1{font-size:24px;}
  .brand__name{font-size:14px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
:root{
  --c-primary:#17706B;
  --c-primary-hover:#125B57;
  --c-primary-soft:#E3F0EE;
  --c-accent:#E2873C;
  --c-accent-hover:#C9722B;
  --c-accent-soft:#FBEEE1;
  --c-aux:#6B6F8A;
  --c-aux-soft:#EDEDF4;
  --bg:#F7F5F1;
  --bg-card:#FFFFFF;
  --bg-deep:#10201F;
  --ink:#16211F;
  --ink-2:#4A5654;
  --ink-3:#7C8785;
  --line:#E2DED6;
  --ok:#2F8F6B;
  --warn:#C9722B;
  --err:#B4453A;

  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,32,31,.05),0 8px 24px rgba(16,32,31,.06);
  --sh-2:0 2px 4px rgba(16,32,31,.06),0 14px 34px rgba(16,32,31,.10);

  --container:1180px;
  --gap:24px;
  --sec-y:88px;
  --ease:180ms ease;
}

/* ============ reset / base ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-md)}
a{color:var(--c-primary);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--c-accent)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:600;letter-spacing:-.01em}
p{margin:0}
button{font:inherit;color:inherit;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
svg{display:block}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ============ 顶部浮动 Dock ============ */
.site-header{position:relative;z-index:60}
.dock{
  position:fixed;
  top:18px;
  left:50%;
  transform:translateX(-50%);
  width:min(1080px,calc(100% - 32px));
  height:64px;
  display:flex;
  align-items:center;
  gap:14px;
  padding:0 14px 0 18px;
  background:rgba(247,245,241,.92);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  box-shadow:var(--sh-1);
  transition:height var(--ease),box-shadow var(--ease),background var(--ease);
}
.dock.is-scrolled{height:56px;box-shadow:var(--sh-2);background:rgba(247,245,241,.97)}

.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand__mark{
  width:36px;height:36px;flex:0 0 auto;border-radius:12px;
  display:grid;place-items:center;color:#fff;
  background:linear-gradient(140deg,var(--c-primary),#0E4F4B);
  box-shadow:0 4px 12px rgba(23,112,107,.28);
}
.brand__mark svg{width:20px;height:20px}
.brand__text{display:flex;flex-direction:column;line-height:1.15}
.brand__name{font-size:15px;font-weight:700;letter-spacing:.02em}
.brand__sub{font-size:11px;color:var(--ink-3);letter-spacing:.08em}

.dock-nav{
  display:flex;align-items:center;gap:4px;
  margin:0 auto;
  padding:4px;
}
.dock-link{
  display:inline-flex;align-items:center;
  height:38px;padding:0 16px;
  border-radius:var(--r-pill);
  font-size:14px;color:var(--ink-2);
  white-space:nowrap;
  transition:background var(--ease),color var(--ease);
}
.dock-link:hover{background:var(--c-primary-soft);color:var(--c-primary)}
.dock-link.is-active{background:var(--c-primary-soft);color:var(--c-primary);font-weight:600}

.dock-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;display:grid;place-items:center;
  border:1px solid var(--line);border-radius:var(--r-pill);
  background:var(--bg-card);color:var(--ink-2);
  transition:border-color var(--ease),color var(--ease),transform var(--ease);
}
.icon-btn:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-1px)}
.icon-btn svg{width:18px;height:18px}

.menu-btn{display:none;width:40px;height:40px;place-items:center;border:1px solid var(--line);border-radius:var(--r-pill);background:var(--bg-card);color:var(--ink)}
.menu-btn svg{width:18px;height:18px}

/* 抽屉 */
.dock-drawer{
  position:fixed;inset:0 0 0 auto;
  width:min(320px,86vw);
  background:var(--bg-card);
  border-left:1px solid var(--line);
  box-shadow:var(--sh-2);
  transform:translateX(102%);
  transition:transform 220ms ease;
  z-index:80;
  padding:24px 22px;
  display:flex;flex-direction:column;gap:8px;
  overflow-y:auto;
}
.dock-drawer.is-open{transform:translateX(0)}
.dock-drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.dock-drawer__title{font-size:14px;color:var(--ink-3);letter-spacing:.08em}
.drawer-link{
  display:block;padding:13px 14px;border-radius:var(--r-md);
  color:var(--ink-2);font-size:15px;border:1px solid transparent;
}
.drawer-link:hover{background:var(--c-primary-soft);color:var(--c-primary)}
.drawer-link.is-active{background:var(--c-primary-soft);color:var(--c-primary);font-weight:600;border-color:#CDE3E0}
.drawer-close{width:36px;height:36px;display:grid;place-items:center;border:1px solid var(--line);border-radius:var(--r-pill);background:var(--bg)}
.drawer-close svg{width:16px;height:16px}
.drawer-search{
  display:flex;align-items:center;gap:8px;
  margin-top:14px;padding:0 14px;height:44px;
  border:1px solid var(--line);border-radius:var(--r-sm);background:var(--bg);
}
.drawer-search svg{width:16px;height:16px;color:var(--ink-3)}
.drawer-search input{border:0;background:transparent;outline:none;width:100%;font-size:14px}
.drawer-cta{margin-top:18px}

.scrim{
  position:fixed;inset:0;background:rgba(16,32,31,.42);
  opacity:0;visibility:hidden;transition:opacity 200ms ease,visibility 200ms ease;z-index:70;
}
.scrim.is-open{opacity:1;visibility:visible}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;
  border:1px solid transparent;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  cursor:pointer;transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
  white-space:nowrap;
}
.btn svg{width:16px;height:16px}
.btn--primary{background:var(--c-primary);color:#fff;box-shadow:0 6px 16px rgba(23,112,107,.22)}
.btn--primary:hover{background:var(--c-primary-hover);color:#fff;transform:translateY(-1px)}
.btn--primary:active{transform:translateY(0)}
.btn--accent{background:var(--c-accent);color:#fff;box-shadow:0 6px 16px rgba(226,135,60,.24)}
.btn--accent:hover{background:var(--c-accent-hover);color:#fff;transform:translateY(-1px)}
.btn--accent:active{transform:translateY(0)}
.btn--ghost{background:var(--bg-card);color:var(--ink);border-color:var(--line)}
.btn--ghost:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-1px)}
.btn--onDark{background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}
.btn--onDark:hover{background:#fff;color:var(--bg-deep);border-color:#fff}
.btn--sm{height:38px;padding:0 16px;font-size:14px}
.btn[disabled]{opacity:.5;pointer-events:none}

.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--c-primary);
}
.link-arrow svg{width:15px;height:15px;transition:transform var(--ease)}
.link-arrow:hover{color:var(--c-accent)}
.link-arrow:hover svg{transform:translateX(3px)}

/* ============ 内页 Banner ============ */
.page-banner{
  position:relative;
  margin-top:0;
  padding:150px 0 56px;
  overflow:hidden;
  isolation:isolate;
}
.page-banner__bg{
  position:absolute;inset:0;z-index:-2;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  transform:scale(1.02);
}
.page-banner::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(100deg,rgba(16,32,31,.90) 0%,rgba(23,112,107,.80) 52%,rgba(23,112,107,.55) 100%);
}
.page-banner::after{
  content:"";position:absolute;inset:0;z-index:-1;opacity:.28;
  background-image:
    repeating-linear-gradient(0deg,rgba(255,255,255,.16) 0 1px,transparent 1px 44px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.16) 0 1px,transparent 1px 44px);
  -webkit-mask-image:radial-gradient(circle at 78% 30%,#000 0%,transparent 68%);
  mask-image:radial-gradient(circle at 78% 30%,#000 0%,transparent 68%);
}
.page-banner__inner{position:relative;color:#fff}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:18px}
.breadcrumb a{color:rgba(255,255,255,.82)}
.breadcrumb a:hover{color:#fff}
.breadcrumb span.sep{opacity:.55}
.page-banner h1{
  font-size:38px;
  font-weight:700;
  letter-spacing:-.02em;
  max-width:760px;
}
.page-banner__lead{
  margin-top:14px;
  font-size:17px;
  color:rgba(255,255,255,.86);
  max-width:620px;
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  height:30px;padding:0 14px;border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.02em;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.26);
  color:#fff;
}
.tag svg{width:13px;height:13px;opacity:.9}
.tag--soft{background:var(--c-primary-soft);border-color:#CFE5E2;color:var(--c-primary)}
.tag--accent{background:var(--c-accent-soft);border-color:#F2DCC6;color:var(--c-accent-hover)}
.tag--aux{background:var(--c-aux-soft);border-color:#DEDEE9;color:var(--c-aux)}

/* ============ 主体布局：粘性目录 + 内容区 ============ */
.section{padding:var(--sec-y) 0}
.section--tight{padding:64px 0}

.layout{
  display:grid;
  grid-template-columns:264px minmax(0,1fr);
  gap:52px;
  align-items:start;
}

.toc{
  position:sticky;top:110px;
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:22px 20px;
  box-shadow:var(--sh-1);
}
.toc__title{
  font-size:12px;letter-spacing:.14em;color:var(--ink-3);
  text-transform:uppercase;margin-bottom:14px;
}
.toc li + li{margin-top:4px}
.toc a{
  display:flex;align-items:center;gap:10px;
  padding:9px 12px;border-radius:var(--r-sm);
  font-size:14px;color:var(--ink-2);
  border-left:2px solid transparent;
}
.toc a:hover{background:var(--c-primary-soft);color:var(--c-primary)}
.toc a.is-current{background:var(--c-primary-soft);color:var(--c-primary);font-weight:600;border-left-color:var(--c-accent)}
.toc__num{font-size:11px;color:var(--ink-3);font-variant-numeric:tabular-nums}
.toc a.is-current .toc__num{color:var(--c-accent)}
.toc__foot{
  margin-top:18px;padding-top:16px;border-top:1px dashed var(--line);
  font-size:13px;color:var(--ink-3);
}
.toc__foot a{display:inline-flex;align-items:center;gap:6px;margin-top:8px;font-weight:600}
.toc__foot a svg{width:14px;height:14px}

/* ============ 段落 ============ */
.segments{display:flex;flex-direction:column;gap:0}
.segment{
  scroll-margin-top:120px;
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:40px;
  align-items:center;
  padding:44px 0;
}
.segment + .segment{border-top:1px dashed var(--line)}
.segment--reverse .segment__media{order:2}
.segment__media{
  position:relative;
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--sh-1);
  background:linear-gradient(140deg,#EFF4F2,#E3F0EE);
}
.segment__media img{width:100%;height:280px;object-fit:cover;border-radius:var(--r-md);transition:transform 420ms ease}
.segment__media:hover img{transform:scale(1.03)}
.segment__badge{
  position:absolute;left:14px;top:14px;
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 12px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.94);color:var(--c-primary);
  font-size:12px;font-weight:600;
}
.segment__body h2{
  font-size:26px;
  margin-bottom:14px;
  max-width:460px;
}
.segment__body p{color:var(--ink-2);font-size:15.5px;max-width:520px}
.step-badge{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:40px;height:40px;padding:0 12px;
  border:1.5px solid var(--c-accent);color:var(--c-accent);
  border-radius:var(--r-pill);
  font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;
  margin-bottom:16px;
}
.check-list{margin:20px 0 22px;display:flex;flex-direction:column;gap:11px}
.check-list li{
  position:relative;padding-left:28px;
  font-size:15px;color:var(--ink-2);
}
.check-list li::before{
  content:"";position:absolute;left:0;top:8px;
  width:14px;height:14px;border-radius:50%;
  background:var(--c-primary-soft);
  box-shadow:inset 0 0 0 1.5px var(--c-primary);
}
.check-list li::after{
  content:"";position:absolute;left:4.5px;top:12px;
  width:5px;height:2.5px;border-left:1.6px solid var(--c-primary);
  border-bottom:1.6px solid var(--c-primary);
  transform:rotate(-45deg);
}
.check-list--accent li::before{background:var(--c-accent-soft);box-shadow:inset 0 0 0 1.5px var(--c-accent)}
.check-list--accent li::after{border-left-color:var(--c-accent);border-bottom-color:var(--c-accent)}

.note-strip{
  display:flex;gap:12px;align-items:flex-start;
  padding:16px 18px;border-radius:var(--r-md);
  background:var(--c-accent-soft);
  border:1px solid #F1DAC3;
  font-size:14px;color:#8A551F;
  max-width:520px;
}
.note-strip svg{width:18px;height:18px;flex:0 0 auto;margin-top:3px;color:var(--c-accent)}

/* ============ 指标带 ============ */
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;
}
.metric{
  background:var(--bg-card);
  padding:26px 22px;
}
.metric__num{
  font-size:32px;font-weight:700;color:var(--c-primary);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;line-height:1.1;
}
.metric__num em{font-style:normal;font-size:16px;margin-left:2px;color:var(--ink-3)}
.metric__label{margin-top:8px;font-size:13.5px;color:var(--ink-3)}

/* ============ 时间线 ============ */
.timeline-wrap{
  margin-top:44px;
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:34px 30px;
  box-shadow:var(--sh-1);
}
.timeline-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:26px}
.timeline-head h2{font-size:24px}
.timeline-head p{font-size:14px;color:var(--ink-3);max-width:420px}
.timeline{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  position:relative;
}
.timeline li{position:relative;padding:0 18px 0 0}
.timeline li::before{
  content:"";position:absolute;left:26px;right:-6px;top:15px;height:1px;
  background:repeating-linear-gradient(90deg,var(--line) 0 6px,transparent 6px 12px);
}
.timeline li:last-child::before{display:none}
.timeline__dot{
  position:relative;z-index:1;
  width:32px;height:32px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--c-primary-soft);color:var(--c-primary);
  font-size:13px;font-weight:700;margin-bottom:14px;
}
.timeline li:nth-child(2) .timeline__dot{background:var(--c-accent-soft);color:var(--c-accent-hover)}
.timeline li:nth-child(3) .timeline__dot{background:var(--c-aux-soft);color:var(--c-aux)}
.timeline h3{font-size:16px;margin-bottom:6px}
.timeline p{font-size:13.5px;color:var(--ink-3);padding-right:8px}

/* ============ FAQ ============ */
.faq-section{background:#F1EEE8}
.faq-grid{display:grid;grid-template-columns:320px minmax(0,1fr);gap:56px;align-items:start}
.faq-intro h2{font-size:28px;margin-bottom:14px}
.faq-intro p{color:var(--ink-2);font-size:15px;margin-bottom:22px}
.faq-list{border-top:1px solid #D9D4CA}
.faq-item{border-bottom:1px solid #D9D4CA}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 4px;font-size:16px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--c-primary)}
.faq-item .chev{
  width:26px;height:26px;flex:0 0 auto;border-radius:50%;
  display:grid;place-items:center;
  border:1px solid var(--line);background:var(--bg-card);color:var(--ink-2);
  transition:transform var(--ease),border-color var(--ease),color var(--ease);
}
.faq-item .chev svg{width:13px;height:13px}
.faq-item[open] .chev{transform:rotate(180deg);border-color:var(--c-primary);color:var(--c-primary)}
.faq-item[open] summary{color:var(--c-primary)}
.faq-body{padding:0 4px 22px;font-size:14.5px;color:var(--ink-2);max-width:640px}
.faq-body a{text-decoration:underline;text-underline-offset:3px}

/* ============ CTA 条 ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--bg-deep);
  border-radius:var(--r-lg);
  padding:40px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  color:#fff;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.12;
  background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.5) 0 1px,transparent 1px 40px);
  -webkit-mask-image:linear-gradient(100deg,#000,transparent 70%);
  mask-image:linear-gradient(100deg,#000,transparent 70%);
}
.cta-band__text{position:relative}
.cta-band h2{font-size:26px;margin-bottom:8px}
.cta-band p{color:rgba(255,255,255,.72);font-size:14.5px;max-width:560px}
.cta-band__actions{position:relative;display:flex;gap:12px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:88px;
  background:var(--bg-deep);
  color:rgba(255,255,255,.72);
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.3fr;
  gap:40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;color:#fff}
.footer-brand .brand__mark{background:linear-gradient(140deg,#1E8A83,#125B57);box-shadow:none}
.footer-brand .brand__name{color:#fff}
.footer-brand .brand__sub{color:rgba(255,255,255,.55)}
.footer-desc{font-size:14px;max-width:340px;line-height:1.8;color:rgba(255,255,255,.62)}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.62)}
.footer-col a:hover{color:var(--c-accent)}
.footer-contact li{display:flex;gap:10px;font-size:13.5px;line-height:1.7;color:rgba(255,255,255,.62)}
.footer-contact svg{width:16px;height:16px;flex:0 0 auto;margin-top:4px;color:var(--c-accent)}
.footer-bottom{
  margin-top:46px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.45);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  :root{--sec-y:72px}
  .container{padding:0 22px}
  .layout{grid-template-columns:232px minmax(0,1fr);gap:36px}
  .page-banner h1{font-size:34px}
  .segment__media img{height:250px}
}

@media (max-width:1023px){
  .dock-nav{display:none}
  .menu-btn{display:grid}
  .dock{justify-content:space-between;padding:0 12px 0 14px}
  .dock-actions .icon-btn{display:none}
  .layout{grid-template-columns:1fr;gap:28px}
  .toc{position:static;top:auto;padding:16px}
  .toc ul{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px}
  .toc li{flex:0 0 auto}
  .toc a{white-space:nowrap;border-left:0;border-bottom:2px solid transparent;border-radius:var(--r-pill);background:var(--bg)}
  .toc a.is-current{border-left:0;border-bottom-color:transparent}
  .toc__foot{display:none}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .timeline{grid-template-columns:repeat(2,1fr);gap:26px 0}
  .timeline li::before{display:none}
  .faq-grid{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .segment{grid-template-columns:1fr;gap:24px;padding:36px 0}
  .segment--reverse .segment__media{order:0}
  .segment__media img{height:230px}
  .segment__body h2{font-size:23px}
  .page-banner{padding:132px 0 48px}
}

@media (max-width:767px){
  :root{--sec-y:56px}
  html{scroll-behavior:auto}
  body{font-size:15.5px}
  .container{padding:0 18px}
  .dock{
    top:auto;bottom:14px;height:60px;
    width:calc(100% - 24px);
    padding:0 12px;
  }
  .dock.is-scrolled{height:60px}
  .brand__sub{display:none}
  .dock-actions .btn{display:none}
  .page-banner{padding:96px 0 40px;border-radius:0}
  .page-banner h1{font-size:27px}
  .page-banner__lead{font-size:15px}
  .page-banner::after{-webkit-mask-image:none;mask-image:none;opacity:.16}
  .segment__media img{height:200px}
  .metrics{grid-template-columns:1fr 1fr}
  .metric{padding:20px 16px}
  .metric__num{font-size:26px}
  .timeline{grid-template-columns:1fr;gap:20px}
  .timeline li{padding-left:0;padding-bottom:6px}
  .timeline-wrap{padding:26px 20px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 22px;border-radius:var(--r-md)}
  .cta-band h2{font-size:22px}
  .cta-band__actions{width:100%}
  .cta-band__actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .site-footer{margin-top:60px;padding:48px 0 110px}
  .faq-intro h2{font-size:24px}
  .faq-item summary{font-size:15px;padding:17px 2px}
  .segment__body h2{font-size:21px}
}

@media (max-width:420px){
  .page-banner h1{font-size:23px}
  .metrics{grid-template-columns:1fr}
  .btn{height:42px;padding:0 18px;font-size:14px}
  .tag{height:28px;font-size:11.5px}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
/* ===== 设计变量 ===== */
:root{
  --c-primary:#17706B;
  --c-primary-hover:#125B57;
  --c-primary-soft:#E3F0EE;
  --c-accent:#E2873C;
  --c-accent-hover:#C9722B;
  --c-accent-soft:#FBEEE1;
  --c-aux:#6B6F8A;
  --c-aux-soft:#EDEEF4;
  --bg:#F7F5F1;
  --bg-card:#FFFFFF;
  --bg-deep:#10201F;
  --ink:#16211F;
  --ink-2:#4A5654;
  --ink-3:#7C8785;
  --line:#E2DED6;
  --ok:#2F8F6B;
  --warn:#C9722B;
  --err:#B4453A;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,32,31,.05),0 8px 24px rgba(16,32,31,.06);
  --sh-2:0 2px 4px rgba(16,32,31,.06),0 14px 34px rgba(16,32,31,.10);
  --t:200ms ease;
  --container:1180px;
}

/* ===== reset / base ===== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color var(--t),background-color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:.2px;}
h1{font-size:40px;}
h2{font-size:28px;font-weight:600;}
h3{font-size:20px;}
p{margin:0;}
svg{display:block;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:6px;}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* ===== 容器 & 区块 ===== */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section--tight{padding:72px 0;}
.section-head{max-width:640px;margin-bottom:40px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:1.4px;
  color:var(--c-primary);background:var(--c-primary-soft);
  padding:5px 12px;border-radius:var(--r-pill);margin-bottom:16px;
}
.section-head h2{margin-bottom:12px;}
.section-head p{color:var(--ink-2);font-size:16px;}
.section-head--split{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;max-width:none;}
.section-head--split .section-head__text{max-width:620px;}

/* ===== 浮动 Dock 导航 ===== */
.dock{
  position:fixed;top:18px;left:50%;transform:translateX(-50%);
  width:min(1080px,calc(100% - 32px));
  z-index:60;
}
.dock-inner{
  display:flex;align-items:center;gap:18px;
  height:64px;padding:0 14px 0 18px;
  background:rgba(247,245,241,.88);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  box-shadow:var(--sh-1);
  transition:height var(--t),box-shadow var(--t),background-color var(--t);
}
.dock.is-scrolled .dock-inner{height:56px;box-shadow:var(--sh-2);background:rgba(247,245,241,.95);}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand__mark{
  width:34px;height:34px;border-radius:11px;
  display:grid;place-items:center;
  background:var(--c-primary);color:#fff;flex-shrink:0;
}
.brand__mark svg{width:19px;height:19px;}
.brand__text{display:flex;flex-direction:column;line-height:1.1;}
.brand__name{font-size:15px;font-weight:700;letter-spacing:.5px;}
.brand__sub{font-size:10.5px;color:var(--ink-3);letter-spacing:.6px;}
.dock-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.dock-link{
  font-size:14px;color:var(--ink-2);padding:8px 14px;border-radius:var(--r-pill);
  white-space:nowrap;
}
.dock-link:hover{background:rgba(23,112,107,.08);color:var(--c-primary);}
.dock-link.is-active{background:var(--c-primary-soft);color:var(--c-primary);font-weight:600;}
.dock-actions{display:flex;align-items:center;gap:8px;flex-shrink:0;}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-pill);
  border:1px solid var(--line);display:grid;place-items:center;
  color:var(--ink-2);background:var(--bg-card);
}
.icon-btn:hover{border-color:var(--c-primary);color:var(--c-primary);}
.icon-btn svg{width:18px;height:18px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;white-space:nowrap;
  border:1px solid transparent;transition:all var(--t);
}
.btn svg{width:16px;height:16px;}
.btn--primary{background:var(--c-primary);color:#fff;}
.btn--primary:hover{background:var(--c-primary-hover);transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn--primary:active{transform:translateY(0);box-shadow:none;}
.btn--accent{background:var(--c-accent);color:#fff;}
.btn--accent:hover{background:var(--c-accent-hover);transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn--ghost{border-color:var(--line);color:var(--ink);background:var(--bg-card);}
.btn--ghost:hover{border-color:var(--c-primary);color:var(--c-primary);}
.btn--onDark{background:transparent;border-color:rgba(255,255,255,.32);color:#fff;}
.btn--onDark:hover{border-color:var(--c-accent);color:var(--c-accent);}
.btn--sm{height:42px;padding:0 18px;font-size:14px;}
.btn[disabled]{opacity:.5;pointer-events:none;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--c-primary);
}
.link-arrow svg{width:15px;height:15px;transition:transform var(--t);}
.link-arrow:hover{color:var(--c-accent-hover);}
.link-arrow:hover svg{transform:translateX(3px);}
.hamburger{display:none;}

/* ===== 移动抽屉 ===== */
.drawer{
  position:fixed;inset:0 0 0 auto;width:min(320px,86vw);
  background:var(--bg-card);z-index:80;
  transform:translateX(102%);transition:transform var(--t);
  padding:22px 20px 26px;display:flex;flex-direction:column;gap:6px;
  box-shadow:-12px 0 40px rgba(16,32,31,.16);
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer__title{font-size:14px;font-weight:700;color:var(--ink-3);letter-spacing:1px;}
.drawer .dock-link{display:block;padding:13px 14px;font-size:15px;border-radius:var(--r-sm);}
.drawer__cta{margin-top:16px;display:grid;gap:10px;}
.drawer__cta .btn{width:100%;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,32,31,.42);
  z-index:70;opacity:0;pointer-events:none;transition:opacity var(--t);
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}

/* ===== 页面主区 ===== */
main{padding-top:118px;}

/* ===== Banner ===== */
.page-banner{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background-image:linear-gradient(115deg,rgba(16,32,31,.88) 0%,rgba(23,112,107,.72) 58%,rgba(16,32,31,.78) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  color:#fff;padding:52px 48px 48px;
}
.page-banner::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:46px 46px;pointer-events:none;
}
.page-banner > *{position:relative;z-index:1;}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:22px;flex-wrap:wrap;}
.crumbs a:hover{color:var(--c-accent);}
.crumbs span{opacity:.6;}
.page-banner h1{font-size:38px;max-width:720px;margin-bottom:14px;}
.page-banner .lede{font-size:17px;color:rgba(255,255,255,.86);max-width:620px;margin-bottom:24px;}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px;}
.banner-tags span{
  font-size:12.5px;padding:5px 13px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);
  color:rgba(255,255,255,.92);
}

/* ===== 标签 / 徽章 ===== */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;padding:4px 10px;border-radius:var(--r-pill);
}
.badge--primary{background:var(--c-primary-soft);color:var(--c-primary);}
.badge--accent{background:var(--c-accent-soft);color:var(--c-accent-hover);}
.badge--aux{background:var(--c-aux-soft);color:var(--c-aux);}

/* ===== 通用网格 ===== */
.grid{display:grid;gap:24px;}
.grid--3{grid-template-columns:repeat(3,1fr);}
.grid--2{grid-template-columns:repeat(2,1fr);}
.grid--4{grid-template-columns:repeat(4,1fr);}

/* ===== 信息卡 ===== */
.info-card{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px 24px;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;gap:12px;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.info-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-primary);}
.info-card__icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:var(--c-primary-soft);color:var(--c-primary);
}
.info-card__icon svg{width:22px;height:22px;}
.info-card:nth-child(2) .info-card__icon{background:var(--c-accent-soft);color:var(--c-accent-hover);}
.info-card:nth-child(3) .info-card__icon{background:var(--c-aux-soft);color:var(--c-aux);}
.info-card h3{font-size:19px;}
.info-card p{font-size:14.5px;color:var(--ink-2);}
.info-card__foot{margin-top:auto;padding-top:8px;border-top:1px dashed var(--line);}

/* ===== 流程时间轴 ===== */
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.tl-item{position:relative;padding-top:56px;}
.tl-num{
  position:absolute;top:0;left:0;
  width:42px;height:42px;border-radius:var(--r-pill);
  border:1.5px solid var(--c-accent);color:var(--c-accent);
  display:grid;place-items:center;font-size:15px;font-weight:700;
  background:var(--bg);
}
.tl-item:not(:last-child)::after{
  content:"";position:absolute;top:21px;left:52px;right:-24px;
  border-top:1px dashed var(--line);
}
.tl-item h3{font-size:17px;margin-bottom:8px;}
.tl-item p{font-size:14.5px;color:var(--ink-2);}

/* ===== 接入方式板块（非对称） ===== */
.access{display:grid;grid-template-columns:1.05fr 1fr;gap:40px;align-items:center;}
.access__media{
  border-radius:var(--r-md);overflow:hidden;position:relative;
  box-shadow:var(--sh-1);
}
.access__media img{width:100%;height:380px;object-fit:cover;}
.access__media figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:16px 20px;font-size:13px;color:rgba(255,255,255,.9);
  background:linear-gradient(transparent,rgba(16,32,31,.82));
}
.access-list{display:grid;gap:14px;}
.access-row{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px 22px;box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.access-row:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-primary);}
.access-row__icon{
  width:40px;height:40px;border-radius:11px;flex-shrink:0;
  display:grid;place-items:center;background:var(--c-primary-soft);color:var(--c-primary);
}
.access-row__icon svg{width:19px;height:19px;}
.access-row h3{font-size:17px;margin-bottom:4px;}
.access-row p{font-size:14.5px;color:var(--ink-2);}

/* ===== 数据指标 ===== */
.metrics{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:36px 24px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
}
.metric{text-align:center;padding:0 12px;}
.metric + .metric{border-left:1px solid var(--line);}
.metric__num{
  font-size:34px;font-weight:700;color:var(--c-primary);
  line-height:1.2;letter-spacing:-.5px;
}
.metric__num em{font-size:16px;font-style:normal;font-weight:600;margin-left:3px;color:var(--ink-2);}
.metric__label{font-size:13.5px;color:var(--ink-3);margin-top:6px;}

/* ===== FAQ ===== */
.faq-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:start;}
.faq-aside h2{margin-bottom:14px;}
.faq-aside p{color:var(--ink-2);font-size:15px;margin-bottom:22px;max-width:340px;}
.faq-list{border-top:1px solid var(--line);}
.faq-list details{border-bottom:1px solid var(--line);}
.faq-list summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 4px;font-size:16.5px;font-weight:600;color:var(--ink);
}
.faq-list summary::-webkit-details-marker{display:none;}
.faq-list summary::after{
  content:"";flex-shrink:0;width:11px;height:11px;
  border-right:2px solid var(--ink-3);border-bottom:2px solid var(--ink-3);
  transform:rotate(45deg);transition:transform var(--t),border-color var(--t);
}
.faq-list details[open] summary::after{transform:rotate(-135deg);border-color:var(--c-accent);}
.faq-list summary:hover{color:var(--c-primary);}
.faq-list .faq-body{padding:0 4px 22px;font-size:15px;color:var(--ink-2);max-width:640px;}
.faq-list .faq-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
.faq-list .faq-body a:hover{color:var(--c-accent-hover);}

/* ===== 深色开通区 ===== */
.open{
  background:var(--bg-deep);color:#fff;position:relative;overflow:hidden;
  border-radius:var(--r-lg);padding:52px 48px;
}
.open::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(circle at 18% 22%,rgba(23,112,107,.4),transparent 42%),radial-gradient(circle at 82% 78%,rgba(226,135,60,.22),transparent 46%);
  pointer-events:none;
}
.open__grid{position:relative;display:grid;grid-template-columns:1fr .92fr;gap:44px;align-items:center;}
.open h2{font-size:28px;margin-bottom:14px;}
.open .open__lede{color:rgba(255,255,255,.78);font-size:15.5px;margin-bottom:22px;}
.open ul{display:grid;gap:10px;}
.open ul li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:rgba(255,255,255,.86);}
.open ul li svg{width:16px;height:16px;flex-shrink:0;margin-top:5px;color:var(--c-accent);}
.form-card{
  background:var(--bg-card);color:var(--ink);border-radius:var(--r-lg);
  padding:28px 26px;box-shadow:var(--sh-2);
}
.form-card h3{font-size:19px;margin-bottom:6px;}
.form-card .form-note{font-size:13.5px;color:var(--ink-3);margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:7px;color:var(--ink-2);}
.field input,.field select{
  width:100%;height:44px;padding:0 14px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:#FCFBF9;color:var(--ink);
  transition:border-color var(--t),box-shadow var(--t),background-color var(--t);
}
.field select{appearance:none;background-image:url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%237C8785' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;background-size:16px;padding-right:38px;}
.field input::placeholder{color:#A9B2B0;}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--c-primary);background:#fff;
  box-shadow:0 0 0 3px rgba(23,112,107,.14);
}
.field.is-error input,.field.is-error select{border-color:var(--err);background:#FDF6F5;}
.field .err-msg{display:none;font-size:12px;color:var(--err);margin-top:6px;}
.field.is-error .err-msg{display:block;}
.form-card .btn{width:100%;margin-top:6px;}
.form-privacy{font-size:12px;color:var(--ink-3);margin-top:12px;line-height:1.6;}
.form-success{
  display:none;margin-top:14px;padding:12px 14px;border-radius:var(--r-sm);
  background:var(--c-primary-soft);color:var(--c-primary);font-size:13.5px;font-weight:600;
}
.form-success.is-visible{display:block;}

/* ===== CTA 条 ===== */
.cta-bar{
  background:var(--bg-deep);color:#fff;border-radius:var(--r-lg);
  padding:30px 36px;display:flex;align-items:center;justify-content:space-between;gap:28px;
  position:relative;overflow:hidden;
}
.cta-bar::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(90deg,rgba(23,112,107,.34),rgba(16,32,31,0));
  pointer-events:none;
}
.cta-bar__text{position:relative;}
.cta-bar h2{font-size:22px;margin-bottom:6px;}
.cta-bar p{font-size:14.5px;color:rgba(255,255,255,.76);}
.cta-bar .btn{position:relative;flex-shrink:0;}

/* ===== 页脚 ===== */
.site-footer{background:var(--bg-deep);color:rgba(255,255,255,.72);margin-top:88px;padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand__mark{background:var(--c-primary);color:#fff;}
.footer-brand .brand__name{color:#fff;font-size:16px;font-weight:700;display:block;}
.footer-brand .brand__sub{color:rgba(255,255,255,.6);font-size:11px;letter-spacing:.6px;}
.footer-desc{font-size:14px;line-height:1.8;max-width:330px;color:rgba(255,255,255,.66);}
.footer-col h4{color:#fff;font-size:14px;margin-bottom:16px;letter-spacing:.4px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.68);}
.footer-col a:hover{color:var(--c-accent);}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:rgba(255,255,255,.68);}
.footer-contact svg{width:16px;height:16px;flex-shrink:0;margin-top:5px;color:var(--c-primary);}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ===== 响应式 ===== */
@media (max-width:1279px){
  h1{font-size:34px;}
  .page-banner h1{font-size:32px;}
  h2{font-size:24px;}
  .section{padding:72px 0;}
  .section--tight{padding:64px 0;}
  .dock-link{padding:8px 11px;font-size:13.5px;}
}
@media (max-width:1023px){
  main{padding-top:106px;}
  .dock-nav{display:none;}
  .hamburger{display:grid;}
  .dock-inner{gap:12px;padding:0 12px;}
  .dock-actions .btn{display:none;}
  .grid--3,.grid--4{grid-template-columns:repeat(2,1fr);}
  .timeline{grid-template-columns:repeat(2,1fr);gap:28px 24px;}
  .tl-item:not(:last-child)::after{display:none;}
  .faq-wrap{grid-template-columns:1fr;gap:28px;}
  .faq-aside p{max-width:none;}
  .access{grid-template-columns:1fr;gap:28px;}
  .access__media img{height:320px;}
  .open__grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-desc{max-width:none;}
}
@media (max-width:767px){
  body{font-size:15.5px;}
  main{padding-top:96px;}
  .container{padding:0 18px;}
  h1{font-size:28px;}
  .page-banner{padding:34px 22px 32px;border-radius:var(--r-md);}
  .page-banner h1{font-size:26px;}
  .page-banner .lede{font-size:15.5px;}
  h2{font-size:21px;}
  h3{font-size:17px;}
  .section{padding:56px 0;}
  .section--tight{padding:52px 0;}
  .section-head{margin-bottom:28px;}
  .section-head--split{flex-direction:column;align-items:flex-start;gap:14px;}
  .grid{gap:16px;}
  .grid--3,.grid--2,.grid--4{grid-template-columns:1fr;}
  .timeline{grid-template-columns:1fr;gap:24px;}
  .tl-item{padding-top:0;padding-left:58px;}
  .tl-item:not(:last-child)::before{
    content:"";position:absolute;left:20px;top:46px;bottom:-24px;
    border-left:1px dashed var(--line);
  }
  .metrics{grid-template-columns:1fr 1fr;padding:26px 16px;gap:24px 12px;}
  .metric + .metric{border-left:0;}
  .metric:nth-child(even){border-left:1px solid var(--line);}
  .metric__num{font-size:27px;}
  .faq-list summary{font-size:15.5px;padding:17px 2px;}
  .open{padding:32px 20px;border-radius:var(--r-md);}
  .open h2{font-size:21px;}
  .form-card{padding:22px 18px;}
  .cta-bar{flex-direction:column;align-items:flex-start;gap:18px;padding:26px 20px;border-radius:var(--r-md);}
  .cta-bar .btn{width:100%;}
  .access-row{padding:18px;gap:14px;}
  .site-footer{padding:48px 0 24px;margin-top:56px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:420px){
  h1{font-size:25px;}
  .page-banner h1{font-size:23px;}
  h2{font-size:19px;}
  .brand__sub{display:none;}
  .metric__num{font-size:24px;}
}

/* roulang page: category3 */
:root{
  --c-primary:#17706B;
  --c-primary-hover:#125B57;
  --c-primary-soft:#E3F0EE;
  --c-accent:#E2873C;
  --c-accent-hover:#C9722B;
  --c-accent-soft:#FBEEE1;
  --c-aux:#6B6F8A;
  --c-aux-soft:#EDEEF4;
  --bg:#F7F5F1;
  --bg-card:#FFFFFF;
  --bg-deep:#10201F;
  --ink:#16211F;
  --ink-2:#4A5654;
  --ink-3:#7C8785;
  --line:#E2DED6;
  --ok:#2F8F6B;
  --warn:#C9722B;
  --err:#B4453A;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,32,31,.05), 0 8px 24px rgba(16,32,31,.06);
  --sh-2:0 2px 4px rgba(16,32,31,.07), 0 16px 34px rgba(16,32,31,.11);
  --dock-h:64px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  padding-top:108px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:.2px;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
svg{display:block;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px;}
::selection{background:var(--c-primary-soft);}

.container{max-width:1180px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section--paper{background:var(--bg-card);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.section-head h2{font-size:28px;}
.section-head p{margin-top:10px;color:var(--ink-2);max-width:640px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:2px;text-transform:uppercase;
  color:var(--c-aux);font-weight:600;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--c-accent);border-radius:2px;}

/* ---------- 顶部 Dock 导航 ---------- */
.site-header{
  position:fixed;left:0;right:0;top:18px;z-index:80;
  display:flex;justify-content:center;pointer-events:none;
  transition:top .2s ease;
}
.dock{
  pointer-events:auto;
  width:min(1080px,calc(100% - 32px));
  height:var(--dock-h);
  display:flex;align-items:center;gap:18px;
  padding:0 14px 0 18px;
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  background:rgba(247,245,241,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--sh-1);
  transition:height .2s ease,background .2s ease,box-shadow .2s ease;
}
.site-header.is-scrolled .dock{
  height:56px;
  background:rgba(247,245,241,.95);
  box-shadow:var(--sh-2);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand__mark{
  width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;
  background:var(--c-primary);color:#fff;flex:0 0 auto;
}
.brand__mark svg{width:20px;height:20px;}
.brand__text{display:flex;flex-direction:column;line-height:1.1;}
.brand__name{font-size:16px;font-weight:700;letter-spacing:1px;}
.brand__sub{font-size:11px;color:var(--ink-3);letter-spacing:.6px;}
.dock-nav{
  flex:1 1 auto;display:flex;justify-content:center;align-items:center;gap:4px;
}
.dock-link{
  padding:9px 14px;border-radius:var(--r-pill);
  font-size:14px;color:var(--ink-2);
  transition:background .18s ease,color .18s ease,transform .18s ease;
  white-space:nowrap;
}
.dock-link:hover{background:rgba(23,112,107,.08);color:var(--c-primary);}
.dock-link.is-active{background:var(--c-primary-soft);color:var(--c-primary);font-weight:600;}
.dock-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto;}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;color:var(--ink-2);
  display:grid;place-items:center;cursor:pointer;
  transition:color .18s ease,border-color .18s ease,transform .18s ease;
}
.icon-btn svg{width:18px;height:18px;}
.icon-btn:hover{color:var(--c-primary);border-color:var(--c-primary);transform:translateY(-1px);}
.menu-btn{display:none;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn svg{width:16px;height:16px;transition:transform .18s ease;}
.btn--primary{background:var(--c-primary);color:#fff;}
.btn--primary:hover{background:var(--c-primary-hover);transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn--accent{background:var(--c-accent);color:#fff;}
.btn--accent:hover{background:var(--c-accent-hover);transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn--ghost{background:#fff;color:var(--ink);border-color:var(--line);}
.btn--ghost:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-1px);}
.btn--quiet{background:transparent;color:#fff;border-color:rgba(255,255,255,.45);}
.btn--quiet:hover{background:rgba(255,255,255,.12);}
.btn--sm{height:38px;padding:0 16px;font-size:14px;}
.btn:active{transform:translateY(0);}
.btn:hover svg{transform:translateX(2px);}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;line-height:1.6;
}
.badge--primary{background:var(--c-primary-soft);color:var(--c-primary);}
.badge--accent{background:var(--c-accent-soft);color:var(--c-accent-hover);}
.badge--aux{background:var(--c-aux-soft);color:var(--c-aux);}
.badge--glass{background:rgba(255,255,255,.16);color:#fff;border:1px solid rgba(255,255,255,.28);}

/* ---------- 移动端抽屉 ---------- */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);
  background:#fff;z-index:120;
  transform:translateX(102%);transition:transform .24s ease;
  box-shadow:-20px 0 40px rgba(16,32,31,.16);
  padding:24px 22px;display:flex;flex-direction:column;gap:8px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px;}
.drawer__title{font-size:14px;color:var(--ink-3);letter-spacing:1px;}
.drawer__close{border:1px solid var(--line);background:#fff;border-radius:var(--r-pill);width:36px;height:36px;display:grid;place-items:center;cursor:pointer;}
.drawer__close svg{width:16px;height:16px;}
.drawer a.drawer__link{
  padding:12px 14px;border-radius:var(--r-md);color:var(--ink-2);font-size:15px;
  border:1px solid transparent;transition:background .18s ease,color .18s ease;
}
.drawer a.drawer__link:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.drawer a.drawer__link.is-active{background:var(--c-primary-soft);color:var(--c-primary);font-weight:600;}
.drawer__foot{margin-top:auto;display:flex;flex-direction:column;gap:10px;padding-top:18px;border-top:1px solid var(--line);}
.backdrop{
  position:fixed;inset:0;background:rgba(16,32,31,.42);z-index:110;
  opacity:0;visibility:hidden;transition:opacity .22s ease,visibility .22s ease;
}
.backdrop.is-open{opacity:1;visibility:visible;}

/* ---------- 分类 Banner ---------- */
.banner{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  margin:0 0 8px;
  background:
    linear-gradient(115deg,rgba(16,32,31,.88) 0%,rgba(23,112,107,.74) 62%,rgba(107,111,138,.66) 100%),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  color:#fff;
  padding:56px 0 52px;
  min-height:340px;
  display:flex;align-items:center;
}
.banner::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.06;
  background-image:linear-gradient(rgba(255,255,255,.9) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:52px 52px;
}
.banner .container{position:relative;z-index:2;}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:18px;flex-wrap:wrap;}
.crumbs a{transition:color .18s ease;}
.crumbs a:hover{color:#fff;}
.crumbs span.sep{opacity:.5;}
.banner h1{font-size:40px;max-width:760px;}
.banner__lede{margin-top:16px;font-size:17px;color:rgba(255,255,255,.86);max-width:620px;}
.banner__tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px;}
.banner__actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px;}

/* ---------- 案例卡带 ---------- */
.rail-wrap{
  position:relative;
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 3.5%,#000 96.5%,transparent 100%);
  mask-image:linear-gradient(90deg,transparent 0,#000 3.5%,#000 96.5%,transparent 100%);
}
.case-rail{
  display:flex;gap:20px;overflow-x:auto;padding:6px 4px 18px;
  scroll-snap-type:x mandatory;
  scrollbar-width:none;
}
.case-rail::-webkit-scrollbar{display:none;}
.case-card{
  flex:0 0 300px;scroll-snap-align:start;
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  display:flex;flex-direction:column;
}
.case-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-aux);}
.case-card__media{aspect-ratio:16/10;overflow:hidden;background:var(--c-aux-soft);}
.case-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.case-card:hover .case-card__media img{transform:scale(1.04);}
.case-card__body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.case-card__quote{font-size:17px;font-weight:600;line-height:1.5;}
.case-card__note{font-size:14px;color:var(--ink-2);line-height:1.7;}
.case-card__foot{margin-top:auto;padding-top:12px;display:flex;align-items:center;justify-content:space-between;border-top:1px dashed var(--line);}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);}
.text-link svg{width:15px;height:15px;transition:transform .18s ease;}
.text-link:hover svg{transform:translateX(3px);}
.text-link--aux{color:var(--c-aux);}

/* ---------- 数据指标 ---------- */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px 28px;box-shadow:var(--sh-1);
}
.stat{padding:0 8px;border-right:1px dashed var(--line);}
.stat:last-child{border-right:0;}
.stat__num{font-size:32px;font-weight:700;color:var(--c-primary);letter-spacing:.5px;font-family:"Inter","Noto Sans SC",system-ui,sans-serif;}
.stat__num em{font-style:normal;font-size:16px;font-weight:600;color:var(--ink-2);margin-left:4px;}
.stat__label{margin-top:6px;font-size:14px;color:var(--ink-3);}

/* ---------- 答疑区 ---------- */
.faq-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:40px;align-items:start;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 4px;font-size:17px;font-weight:600;color:var(--ink);
  transition:color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--c-primary);}
.faq-item .chev{
  flex:0 0 auto;width:26px;height:26px;border-radius:var(--r-pill);
  border:1px solid var(--line);position:relative;
  transition:transform .2s ease,border-color .2s ease,background .2s ease;
}
.faq-item .chev::before{
  content:"";position:absolute;left:50%;top:50%;
  width:8px;height:8px;border-right:2px solid var(--c-aux);border-bottom:2px solid var(--c-aux);
  transform:translate(-50%,-70%) rotate(45deg);
}
.faq-item[open] .chev{transform:rotate(180deg);border-color:var(--c-aux);background:var(--c-aux-soft);}
.faq-body{padding:0 46px 22px 4px;color:var(--ink-2);font-size:15px;line-height:1.8;}
.faq-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
.faq-body a:hover{color:var(--c-accent);}
.side-stack{display:flex;flex-direction:column;gap:20px;position:sticky;top:104px;}
.side-card{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--sh-1);
}
.side-card h3{font-size:17px;margin-bottom:14px;}
.side-card ul{display:flex;flex-direction:column;gap:2px;}
.side-card ul a{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:10px 12px;border-radius:var(--r-sm);font-size:14px;color:var(--ink-2);
  transition:background .18s ease,color .18s ease;
}
.side-card ul a:hover{background:var(--c-aux-soft);color:var(--c-aux);}
.side-card ul a svg{width:14px;height:14px;opacity:.6;}
.side-card--deep{background:var(--bg-deep);color:#fff;border-color:transparent;}
.side-card--deep h3{color:#fff;}
.side-card--deep p{color:rgba(255,255,255,.72);font-size:14px;margin-bottom:16px;}
.side-card--deep .btn{width:100%;}

/* ---------- 主题卡 ---------- */
.topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.topic-card{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px 24px;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  display:flex;flex-direction:column;gap:12px;
}
.topic-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-aux);}
.topic-card__icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:var(--c-aux-soft);color:var(--c-aux);
}
.topic-card__icon svg{width:22px;height:22px;}
.topic-card h3{font-size:18px;}
.topic-card p{font-size:14px;color:var(--ink-2);}

/* ---------- 提问表单 ---------- */
.ask-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:40px;align-items:center;}
.ask-points{margin-top:22px;display:flex;flex-direction:column;gap:12px;}
.ask-points li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-2);}
.ask-points svg{width:18px;height:18px;color:var(--c-aux);flex:0 0 auto;margin-top:4px;}
.form-card{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:30px;box-shadow:var(--sh-2);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:16px;}
.field label{font-size:14px;font-weight:600;color:var(--ink-2);}
.field input,.field select,.field textarea{
  width:100%;height:44px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;
  transition:border-color .18s ease,box-shadow .18s ease;
  font-size:15px;
}
.field textarea{height:auto;min-height:104px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(23,112,107,.14);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--err);}
.field .tip{font-size:12px;color:var(--err);min-height:16px;}
.form-note{font-size:12px;color:var(--ink-3);margin-top:12px;}
.form-success{
  margin-top:14px;padding:12px 14px;border-radius:var(--r-sm);
  background:rgba(47,143,107,.1);color:var(--ok);font-size:14px;display:none;
}
.form-success.is-visible{display:block;}

/* ---------- CTA 窄条 ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:linear-gradient(120deg,var(--bg-deep),#173938 78%,#1d4b47);
  color:#fff;padding:44px 0;
}
.cta-band::after{
  content:"";position:absolute;inset:0;opacity:.05;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.9) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:44px 44px;
}
.cta-band__inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;}
.cta-band h2{font-size:24px;}
.cta-band p{margin-top:8px;color:rgba(255,255,255,.76);font-size:15px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-deep);color:#fff;margin-top:88px;padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand__mark{background:var(--c-primary);}
.footer-brand .brand__name{color:#fff;}
.footer-brand .brand__sub{color:rgba(255,255,255,.55);}
.footer-desc{font-size:14px;color:rgba(255,255,255,.66);line-height:1.8;max-width:320px;}
.footer-col h4{font-size:14px;font-weight:700;margin-bottom:16px;color:#fff;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.62);transition:color .18s ease;}
.footer-col a:hover{color:var(--c-accent);}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:rgba(255,255,255,.62);line-height:1.7;}
.footer-contact svg{width:17px;height:17px;flex:0 0 auto;margin-top:3px;color:var(--c-primary);}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .section{padding:72px 0;}
  .banner h1{font-size:34px;}
  .topic-grid{grid-template-columns:repeat(2,1fr);}
  .faq-layout{grid-template-columns:minmax(0,1fr) 290px;gap:32px;}
}
@media (max-width:1023px){
  .dock-nav{display:none;}
  .menu-btn{display:grid;}
  .stats{grid-template-columns:repeat(2,1fr);gap:24px;}
  .stat{border-right:0;border-bottom:1px dashed var(--line);padding-bottom:16px;}
  .stat:nth-last-child(-n+2){border-bottom:0;padding-bottom:0;}
  .faq-layout{grid-template-columns:1fr;}
  .side-stack{position:static;}
  .ask-grid{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-desc{max-width:none;}
}
@media (max-width:767px){
  body{padding-top:96px;padding-bottom:84px;font-size:16px;}
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .site-header{top:auto;bottom:14px;}
  .dock{width:calc(100% - 24px);height:60px;gap:10px;padding:0 12px;}
  .site-header.is-scrolled .dock{height:56px;}
  .banner{padding:40px 0 38px;min-height:0;}
  .banner h1{font-size:28px;}
  .banner__lede{font-size:15px;}
  .section-head h2{font-size:22px;}
  .stats{padding:24px 20px;}
  .stat__num{font-size:26px;}
  .case-card{flex:0 0 260px;}
  .form-card{padding:24px 20px;}
  .form-row{grid-template-columns:1fr;}
  .faq-item summary{font-size:16px;padding:18px 2px;}
  .faq-body{padding:0 30px 20px 2px;}
  .cta-band__inner{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{padding:48px 0 24px;margin-top:56px;}
}
@media (max-width:420px){
  .banner h1{font-size:24px;}
  .brand__sub{display:none;}
  .topic-grid{grid-template-columns:1fr;}
  .case-card{flex:0 0 232px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}