/* roulang page: index */
:root{
  --brand-900:#0B231D;
  --brand-700:#103A32;
  --brand-500:#1F5A4C;
  --brand-100:#E4EDE9;
  --accent-500:#C8622F;
  --accent-600:#A94E22;
  --sand-100:#F1EBE0;
  --bg:#F7F5F1;
  --surface:#FFFFFF;
  --ink:#1A1D1C;
  --muted:#5C6663;
  --line:#E2E0DA;
  --ok:#2F7A5A;
  --warn:#B7791F;
  --err:#B23B2E;
  --r-card:14px;
  --r-img:12px;
  --r-input:10px;
  --r-pill:999px;
  --r-badge:6px;
  --shadow-card:0 1px 2px rgba(11,35,29,.06);
  --shadow-hover:0 10px 30px -12px rgba(11,35,29,.18);
  --ease:cubic-bezier(.22,.61,.36,1);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:"Noto Sans SC","PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--ink);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-family:var(--serif);font-weight:600;letter-spacing:.02em;color:var(--brand-900);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 40px;}
.section{padding:104px 0;}
.section--sand{background:var(--sand-100);}
.section--tight{padding:88px 0;}
.section-head{max-width:760px;margin-bottom:48px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;font-weight:500;letter-spacing:.14em;
  color:var(--accent-500);margin-bottom:14px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--accent-500);}
.section-title{font-size:clamp(24px,2.6vw,36px);line-height:1.25;}
.section-desc{margin-top:14px;color:var(--muted);font-size:16px;max-width:660px;}
.badge{
  display:inline-block;padding:4px 10px;border-radius:var(--r-badge);
  font-size:12px;font-weight:500;letter-spacing:.08em;
  background:var(--brand-100);color:var(--brand-700);
}
.badge--accent{background:rgba(200,98,47,.12);color:var(--accent-600);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:var(--r-pill);
  padding:12px 22px;font-size:15px;font-weight:500;line-height:1.4;
  cursor:pointer;white-space:nowrap;
  transition:background .3s var(--ease),color .3s var(--ease),border-color .3s var(--ease),
             transform .3s var(--ease),box-shadow .3s var(--ease);
}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:0 8px 22px -14px rgba(200,98,47,.9);}
.btn-primary:hover{background:var(--accent-600);transform:translateY(-2px);}
.btn-primary .arrow{transition:transform .3s var(--ease);}
.btn-primary:hover .arrow{transform:translateX(4px);}
.btn-outline{border-color:var(--brand-700);color:var(--brand-700);background:transparent;}
.btn-outline:hover{background:var(--brand-100);}
.btn-ghost{background:transparent;color:var(--brand-700);padding:8px 0;border-radius:6px;}
.btn-ghost:hover{color:var(--accent-500);}
.btn-ghost .arrow{transition:transform .3s var(--ease);}
.btn-ghost:hover .arrow{transform:translateX(4px);}
.btn-lg{padding:15px 30px;font-size:16px;}
.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,245,241,.86);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:background .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-stuck{
  background:rgba(247,245,241,.94);
  border-bottom-color:var(--line);
  box-shadow:0 6px 24px -20px rgba(11,35,29,.5);
}
.nav-wrap{display:flex;align-items:center;gap:28px;height:78px;}
.logo{display:flex;align-items:center;gap:11px;flex:0 0 auto;}
.logo-mark{
  width:38px;height:38px;border-radius:11px;flex:0 0 auto;
  background:var(--brand-700);color:#fff;display:grid;place-items:center;
  box-shadow:0 8px 18px -12px rgba(11,35,29,.9);
}
.logo-text{font-family:var(--serif);font-size:19px;font-weight:600;color:var(--brand-900);letter-spacing:.02em;}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto;}
.nav-link{
  position:relative;padding:8px 0;font-size:15px;color:var(--muted);
  transition:color .28s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:2px;height:2px;width:0;
  background:var(--accent-500);border-radius:2px;
  transition:width .3s var(--ease);
}
.nav-link:hover{color:var(--brand-900);}
.nav-link:hover::after{width:100%;}
.nav-link[aria-current="page"]{color:var(--brand-900);font-weight:500;}
.nav-link[aria-current="page"]::after{width:100%;}
.nav-actions{display:flex;align-items:center;gap:14px;margin-left:8px;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;
  background:var(--surface);cursor:pointer;padding:0;place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand-900);border-radius:2px;margin:3px auto;}
.nav-drawer{
  display:none;position:fixed;left:0;right:0;top:78px;z-index:79;
  background:var(--surface);border-bottom:1px solid var(--line);
  padding:12px 20px 24px;flex-direction:column;
  box-shadow:0 20px 40px -24px rgba(11,35,29,.4);
}
.nav-drawer.is-open{display:flex;}
.nav-drawer a{
  padding:15px 4px;font-size:16px;color:var(--brand-900);
  border-bottom:1px solid var(--line);
}
.nav-drawer a[aria-current="page"]{color:var(--accent-600);font-weight:500;}
.nav-drawer .btn{margin-top:18px;}

/* ---------- 首屏 ---------- */
.hero{padding:76px 0 100px;position:relative;}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.hero-title{font-size:clamp(32px,4.2vw,54px);line-height:1.2;}
.hero-title em{font-style:normal;color:var(--accent-500);}
.hero-sub{margin-top:20px;font-size:17px;color:var(--muted);max-width:460px;}
.hero-actions{display:flex;align-items:center;gap:24px;margin-top:32px;flex-wrap:wrap;}
.trust-row{
  display:flex;flex-wrap:wrap;gap:28px;margin-top:40px;
  padding-top:28px;border-top:1px solid var(--line);
}
.trust-item{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--muted);}
.trust-item svg{color:var(--ok);flex:0 0 auto;}
.hero-media{position:relative;}
.hero-media img{
  width:100%;height:466px;object-fit:cover;border-radius:var(--r-img);
  background:var(--sand-100);
}
.hero-media::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-img);
  background:rgba(11,35,29,.08);pointer-events:none;
}
.float-card{
  position:absolute;left:-26px;bottom:34px;z-index:2;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);padding:16px 20px;min-width:190px;
  box-shadow:var(--shadow-hover);
}
.float-card .fc-num{font-family:var(--serif);font-size:26px;color:var(--brand-700);line-height:1.2;}
.float-card .fc-label{font-size:13px;color:var(--muted);margin-top:4px;}
.float-card .fc-bar{height:3px;border-radius:2px;background:var(--brand-100);margin-top:12px;overflow:hidden;}
.float-card .fc-bar i{display:block;height:100%;width:86%;background:var(--accent-500);border-radius:2px;}

/* ---------- 痛点提问 ---------- */
.ask-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.ask-card{
  grid-column:span 4;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--shadow-card);
  transition:transform .32s var(--ease),box-shadow .32s var(--ease),border-color .32s var(--ease);
}
.ask-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand-100);}
.ask-card:nth-child(2){margin-top:28px;}
.ask-card:nth-child(4){margin-top:28px;}
.ask-q{display:flex;align-items:flex-start;gap:12px;font-family:var(--serif);font-size:19px;line-height:1.5;color:var(--brand-900);}
.ask-q span.qn{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  background:var(--brand-700);color:#fff;font-family:var(--sans);
  font-size:13px;display:grid;place-items:center;margin-top:3px;
}
.ask-a{margin-top:14px;font-size:15px;color:var(--muted);}

/* ---------- 方案卡片（1 大 2 小） ---------- */
.plan-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.plan-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-card);display:flex;flex-direction:column;
  transition:transform .32s var(--ease),box-shadow .32s var(--ease);
}
.plan-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.plan-card--lg{grid-column:span 6;}
.plan-card--sm{grid-column:span 3;}
.plan-figure{position:relative;}
.plan-figure img{width:100%;height:230px;object-fit:cover;background:var(--sand-100);}
.plan-card--sm .plan-figure img{height:150px;}
.plan-figure .badge{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.94);}
.plan-body{padding:26px;display:flex;flex-direction:column;gap:12px;flex:1;}
.plan-body h3{font-size:20px;line-height:1.45;}
.plan-body p{font-size:15px;color:var(--muted);}
.plan-list{display:flex;flex-direction:column;gap:10px;margin-top:4px;}
.plan-list li{position:relative;padding-left:20px;font-size:14.5px;color:var(--muted);}
.plan-list li::before{
  content:"";position:absolute;left:0;top:.68em;width:8px;height:8px;
  border-radius:2px;background:var(--brand-100);border:1px solid var(--brand-500);
}
.plan-foot{margin-top:auto;padding-top:16px;border-top:1px solid var(--line);font-size:14px;color:var(--accent-600);}

/* ---------- 数据带 ---------- */
.stats-band{position:relative;background:var(--brand-900);color:#fff;overflow:hidden;}
.stats-band::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-3.webp);
  background-size:cover;background-position:center;
  opacity:.16;
}
.stats-band::after{
  content:"";position:absolute;inset:0;
  background:rgba(11,35,29,.72);
}
.stats-band .inner{position:relative;z-index:2;padding:88px 0;}
.stats-band h2{color:#fff;}
.stats-band .section-desc{color:rgba(255,255,255,.68);}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;margin-top:16px;}
.stat-item{padding-top:22px;border-top:2px solid rgba(255,255,255,.16);}
.stat-num{font-family:var(--serif);font-size:clamp(40px,4vw,56px);line-height:1.1;color:#fff;}
.stat-num small{font-size:18px;font-family:var(--sans);margin-left:4px;color:var(--accent-500);}
.stat-label{margin-top:10px;font-size:14px;color:rgba(255,255,255,.72);}
.stat-bar{height:3px;border-radius:2px;background:rgba(255,255,255,.16);margin-top:16px;overflow:hidden;}
.stat-bar i{display:block;height:100%;background:var(--accent-500);border-radius:2px;}

/* ---------- 分类入口条 ---------- */
.cat-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.cat-item{
  display:flex;flex-direction:column;gap:12px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:30px 28px;box-shadow:var(--shadow-card);
  transition:transform .32s var(--ease),box-shadow .32s var(--ease),border-color .32s var(--ease);
}
.cat-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand-100);}
.cat-item h3{font-size:20px;}
.cat-item p{font-size:15px;color:var(--muted);}
.cat-more{
  margin-top:auto;padding-top:16px;display:flex;align-items:center;gap:8px;
  font-size:14px;color:var(--accent-600);font-weight:500;
}
.cat-more svg{transition:transform .3s var(--ease);}
.cat-item:hover .cat-more svg{transform:translateX(4px);}

/* ---------- 表单区 ---------- */
.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start;}
.trust-list{display:flex;flex-direction:column;gap:26px;margin-top:8px;}
.trust-list li{display:flex;gap:14px;}
.trust-list .tl-icon{
  flex:0 0 auto;width:40px;height:40px;border-radius:11px;
  background:var(--brand-100);color:var(--brand-700);
  display:grid;place-items:center;
}
.trust-list h3{font-size:17px;font-family:var(--sans);font-weight:500;color:var(--brand-900);}
.trust-list p{font-size:14.5px;color:var(--muted);margin-top:4px;}
.form-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:34px;box-shadow:var(--shadow-card);
}
.form-card h3{font-size:21px;margin-bottom:6px;}
.form-card .form-hint{font-size:14px;color:var(--muted);margin-bottom:24px;}
.field{margin-bottom:20px;}
.field label{display:block;font-size:14px;font-weight:500;color:var(--brand-900);margin-bottom:8px;}
.input,.select{
  width:100%;padding:13px 16px;font-size:15px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-input);
  transition:border-color .26s var(--ease),box-shadow .26s var(--ease);
}
.input::placeholder{color:#9AA3A0;}
.input:focus,.select:focus{
  outline:none;border-color:var(--brand-700);
  box-shadow:0 0 0 3px rgba(16,58,50,.12);
}
.input.is-error{border-color:var(--err);}
.field-error{font-size:13px;color:var(--err);margin-top:6px;display:none;}
.field-error.is-show{display:block;}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--muted);margin:6px 0 22px;}
.check-row input{width:17px;height:17px;margin-top:5px;accent-color:var(--accent-500);flex:0 0 auto;}
.form-msg{font-size:13px;margin-top:12px;}
.form-msg.is-err{color:var(--err);}
.form-msg.is-ok{color:var(--ok);}
.form-success{
  display:flex;flex-direction:column;align-items:center;gap:12px;
  padding:44px 16px;text-align:center;
}
.form-success svg{color:var(--ok);}
.form-success p{font-size:15px;color:var(--brand-700);}
.privacy-note{
  margin-top:26px;background:var(--sand-100);border-radius:var(--r-card);
  padding:18px 22px;display:flex;gap:12px;align-items:flex-start;
  font-size:13px;color:var(--muted);line-height:1.75;
}
.privacy-note svg{flex:0 0 auto;color:var(--brand-500);margin-top:2px;}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  display:flex;flex-direction:column;gap:12px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--shadow-card);
  transition:transform .32s var(--ease),box-shadow .32s var(--ease),border-color .32s var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand-100);}
.news-card .badge{align-self:flex-start;}
.news-title{
  font-size:18px;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-summary{
  font-size:14.5px;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--muted);
}
.news-more{color:var(--accent-600);font-weight:500;}
.empty-state{
  grid-column:1/-1;display:flex;flex-direction:column;align-items:center;gap:14px;
  padding:56px 20px;text-align:center;
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--r-card);
}
.empty-state svg{color:var(--brand-500);opacity:.7;}
.empty-state p{font-size:15px;color:var(--muted);}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);transition:background .3s var(--ease);}
.faq-item summary{
  position:relative;list-style:none;cursor:pointer;
  padding:22px 48px 22px 20px;
  font-family:var(--serif);font-size:18px;line-height:1.6;color:var(--brand-900);
  transition:color .28s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;
  background:transparent;border-radius:2px;transition:background .3s var(--ease);
}
.faq-item summary::after{
  content:"+";position:absolute;right:14px;top:20px;
  font-family:var(--sans);font-size:22px;color:var(--accent-500);line-height:1;
  transition:transform .3s var(--ease);
}
.faq-item[open] summary::before{background:var(--accent-500);}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item summary:hover{color:var(--accent-600);}
.faq-answer{padding:0 48px 24px 20px;font-size:15px;line-height:1.8;color:var(--muted);}
.faq-answer p+p{margin-top:12px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:#C4D2CD;padding:76px 0 28px;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand .logo-mark{background:var(--brand-500);}
.footer-brand p{margin-top:16px;max-width:300px;line-height:1.85;color:#9DB0AA;}
.footer-col h4{color:#fff;font-size:15px;font-family:var(--sans);font-weight:500;margin-bottom:16px;letter-spacing:.04em;}
.footer-col a{display:block;padding:5px 0;color:#C4D2CD;transition:color .26s var(--ease);}
.footer-col a:hover{color:var(--accent-500);}
.footer-col .fc-text{line-height:1.9;color:#9DB0AA;}
.footer-bottom{
  margin-top:52px;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:#8DA09B;
}

/* ---------- 弹层 ---------- */
.modal{position:fixed;inset:0;z-index:140;display:none;}
.modal.is-open{display:block;}
.modal-mask{
  position:absolute;inset:0;background:rgba(11,35,29,.55);
  -webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);
}
.modal-card{
  position:relative;width:min(520px,92vw);margin:8vh auto;
  background:var(--surface);border-radius:var(--r-card);
  padding:32px;box-shadow:0 26px 60px -20px rgba(11,35,29,.5);
  animation:modalIn .34s var(--ease);
}
@keyframes modalIn{from{opacity:0;transform:translateY(14px);}to{opacity:1;transform:none;}}
@keyframes sheetIn{from{transform:translateY(100%);}to{transform:none;}}
.modal-close{
  position:absolute;right:14px;top:14px;width:34px;height:34px;
  border:1px solid var(--line);border-radius:9px;background:#fff;
  color:var(--muted);font-size:18px;line-height:1;cursor:pointer;
  transition:color .26s var(--ease),border-color .26s var(--ease);
}
.modal-close:hover{color:var(--accent-500);border-color:var(--accent-500);}
.modal-card h3{font-size:21px;margin-bottom:6px;}
.modal-card .modal-sub{font-size:14px;color:var(--muted);margin-bottom:22px;}

/* ---------- 移动端底部 CTA ---------- */
.mobile-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:90;
  height:56px;padding:0 16px calc(0px + env(safe-area-inset-bottom));
  background:rgba(247,245,241,.96);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  border-top:1px solid var(--line);
  align-items:center;justify-content:space-between;gap:12px;
}
.mobile-bar .mbar-link{font-size:14px;color:var(--brand-700);}
.mobile-bar .btn{padding:9px 18px;font-size:14px;}

/* ---------- 骨架加载 ---------- */
.skeleton{
  background:linear-gradient(90deg,var(--sand-100) 25%,#E8E1D4 37%,var(--sand-100) 63%);
  background-size:400% 100%;animation:sk 1.4s ease infinite;border-radius:8px;
}
@keyframes sk{0%{background-position:100% 50%;}100%{background-position:0 50%;}}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .nav-links{gap:20px;}
}
@media (max-width:1024px){
  .container{padding:0 32px;}
  .section{padding:80px 0;}
  .section--tight{padding:68px 0;}
  .hero{padding:52px 0 72px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-media{order:2;}
  .hero-media img{height:360px;}
  .float-card{left:16px;}
  .nav-links,.nav-actions{display:none;}
  .nav-toggle{display:grid;}
  .ask-card{grid-column:span 6;}
  .ask-card:nth-child(2),.ask-card:nth-child(4){margin-top:0;}
  .plan-card--lg{grid-column:span 12;}
  .plan-card--sm{grid-column:span 6;}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:28px;}
  .stats-band .inner{padding:72px 0;}
  .cat-strip{grid-template-columns:1fr;gap:16px;}
  .contact-grid{grid-template-columns:1fr;gap:40px;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .section--tight{padding:52px 0;}
  .section-head{margin-bottom:32px;}
  .hero-title{font-size:clamp(28px,7vw,34px);}
  .hero-sub{font-size:16px;}
  .hero-actions{gap:16px;}
  .hero-actions .btn-lg{width:100%;}
  .trust-row{gap:16px;}
  .hero-media img{height:280px;}
  .float-card{left:12px;bottom:16px;padding:13px 16px;min-width:160px;}
  .ask-card{grid-column:span 12;padding:24px;}
  .plan-card--sm{grid-column:span 12;}
  .plan-figure img{height:180px;}
  .stats-grid{grid-template-columns:1fr;gap:24px;}
  .news-grid{grid-template-columns:1fr;}
  .form-card{padding:24px;}
  .faq-item summary{padding:18px 42px 18px 16px;font-size:17px;}
  .faq-answer{padding:0 24px 20px 16px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .mobile-bar{display:flex;}
  body{padding-bottom:56px;}
  .modal-card{
    position:absolute;left:0;right:0;bottom:0;top:auto;width:100%;
    margin:0;border-radius:16px 16px 0 0;padding:26px 20px calc(26px + env(safe-area-inset-bottom));
    animation:sheetIn .34s var(--ease);
  }
}
@media (max-width:520px){
  .hero-media img{height:220px;}
  .trust-row{flex-direction:column;gap:12px;}
  .stats-grid{gap:20px;}
  .form-card{padding:20px;}
}
@media (max-width:420px){
  .logo-text{font-size:17px;}
  .hero-title{font-size:26px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
}

/* roulang page: article */
:root{
  --brand-900:#0B231D;
  --brand-700:#103A32;
  --brand-500:#1F5A4C;
  --brand-100:#E4EDE9;
  --accent-500:#C8622F;
  --accent-600:#A94E22;
  --sand-100:#F1EBE0;
  --bg:#F7F5F1;
  --surface:#FFFFFF;
  --ink:#1A1D1C;
  --muted:#5C6663;
  --line:#E2E0DA;
  --ok:#2F7A5A;
  --warn:#B7791F;
  --err:#B23B2E;
  --radius-card:14px;
  --radius-img:12px;
  --radius-input:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(11,35,29,.06);
  --shadow-2:0 10px 30px -12px rgba(11,35,29,.18);
  --ease:cubic-bezier(.22,.61,.36,1);
  --serif:"Noto Serif SC","Songti SC","SimSun",serif;
  --sans:"Noto Sans SC","PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --sp-1:8px; --sp-2:16px; --sp-3:24px; --sp-4:32px; --sp-5:40px; --sp-6:56px;
  --sect:104px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4{margin:0;font-family:var(--serif);font-weight:600;letter-spacing:.015em;line-height:1.25;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:4px;}
.num,.stat-num,[data-num]{font-variant-numeric:tabular-nums;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 40px;}
.container-narrow{width:100%;max-width:760px;margin:0 auto;padding:0 40px;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,245,241,.72);
  border-bottom:1px solid transparent;
  transition:background .32s var(--ease),border-color .32s var(--ease),backdrop-filter .32s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(247,245,241,.92);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom-color:var(--line);
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:var(--sp-3);min-height:76px;
}
.logo{display:inline-flex;align-items:center;gap:10px;font-family:var(--serif);font-size:20px;font-weight:600;color:var(--brand-900);}
.logo-mark{
  width:38px;height:38px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-700);color:#F4E7DC;flex:0 0 auto;
}
.logo-text{white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:28px;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--brand-900);
  padding:8px 2px;transition:color .3s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--accent-500);transition:width .3s var(--ease);
}
.nav-link:hover{color:var(--accent-600);}
.nav-link:hover::after{width:100%;}
.nav-link[aria-current="page"]{color:var(--brand-700);}
.nav-link[aria-current="page"]::after{width:100%;background:var(--brand-700);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:500;line-height:1;letter-spacing:.02em;
  border-radius:var(--radius-pill);
  padding:13px 22px;
  transition:background .3s var(--ease),color .3s var(--ease),border-color .3s var(--ease),transform .3s var(--ease),box-shadow .3s var(--ease);
}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:0 8px 20px -12px rgba(200,98,47,.7);}
.btn-primary:hover{background:var(--accent-600);}
.btn-primary .btn-arrow{transition:transform .3s var(--ease);}
.btn-primary:hover .btn-arrow{transform:translateX(4px);}
.btn-ghost{border:1px solid var(--line);color:var(--brand-700);background:rgba(255,255,255,.6);}
.btn-ghost:hover{border-color:var(--brand-500);color:var(--brand-900);}
.btn-dark{background:var(--brand-700);color:#fff;}
.btn-dark:hover{background:var(--brand-900);}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;box-shadow:none;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:var(--surface);
  align-items:center;justify-content:center;color:var(--brand-900);
}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ---------- 面包屑 ---------- */
.crumbs{padding:28px 0 0;font-size:14px;color:var(--muted);}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.crumbs li{display:inline-flex;align-items:center;gap:8px;}
.crumbs li+li::before{content:"/";color:var(--line);}
.crumbs a{color:var(--muted);transition:color .3s var(--ease);}
.crumbs a:hover{color:var(--accent-600);}
.crumbs .current{color:var(--brand-900);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章头区 ---------- */
.article-head{padding:32px 0 0;}
.article-head h1{
  font-size:clamp(30px,3.6vw,44px);
  line-height:1.25;
  color:var(--brand-900);
  max-width:20ch;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
  margin-top:20px;font-size:14px;color:var(--muted);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line);}
.meta-tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:6px;font-size:12.5px;letter-spacing:.06em;
  background:var(--brand-100);color:var(--brand-700);font-weight:500;
}
.head-rule{margin-top:28px;height:1px;background:var(--line);}

/* ---------- 正文布局 ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 260px;
  gap:56px;align-items:start;
  padding:48px 0 0;
}
.article-main{max-width:760px;}
.article-body{font-size:17px;line-height:1.85;color:#242827;}
.article-body>*+*{margin-top:1.2em;}
.article-body p{margin:0;color:#242827;}
.article-body h2{
  font-size:clamp(22px,2.4vw,30px);line-height:1.3;color:var(--brand-900);
  margin-top:2em;margin-bottom:.6em;
}
.article-body h3{
  font-size:20px;line-height:1.4;color:var(--brand-900);
  margin-top:1.8em;margin-bottom:.6em;
}
.article-body h4{font-size:17px;color:var(--brand-700);margin-top:1.6em;margin-bottom:.5em;}
.article-body strong{color:var(--brand-900);font-weight:600;}
.article-body a{color:var(--accent-600);border-bottom:1px solid rgba(169,78,34,.32);transition:border-color .3s var(--ease),color .3s var(--ease);}
.article-body a:hover{color:var(--accent-500);border-bottom-color:var(--accent-500);}
.article-body ul,.article-body ol{margin:1.2em 0;padding-left:0;}
.article-body ul li,.article-body ol li{position:relative;padding-left:24px;line-height:1.8;margin-bottom:.5em;color:#242827;}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:.72em;width:7px;height:7px;border-radius:2px;
  background:var(--accent-500);
}
.article-body ol{counter-reset:item;}
.article-body ol li{counter-increment:item;}
.article-body ol li::before{
  content:counter(item);position:absolute;left:0;top:.2em;
  width:18px;height:18px;border-radius:50%;background:var(--brand-700);color:#fff;
  font-size:11px;line-height:18px;text-align:center;font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;
  background:var(--sand-100);border-left:3px solid var(--accent-500);
  border-radius:0 10px 10px 0;color:#313634;font-size:16px;
}
.article-body blockquote p{color:#313634;}
.article-body img{border-radius:var(--radius-img);width:100%;height:auto;margin:1.4em 0 .6em;}
.article-body figcaption,.article-body .caption{font-size:13px;color:var(--muted);text-align:center;}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:14px;background:var(--sand-100);padding:2px 6px;border-radius:5px;
}
.article-body pre{
  background:var(--sand-100);border:1px solid var(--line);border-radius:var(--radius-img);
  padding:18px 20px;overflow-x:auto;font-size:14px;line-height:1.7;
}
.article-body pre code{background:none;padding:0;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0;}
.empty-state{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:48px 32px;text-align:center;box-shadow:var(--shadow-1);
}
.empty-state svg{color:var(--brand-500);margin:0 auto 16px;}
.empty-state h2{font-size:22px;color:var(--brand-900);margin-bottom:10px;}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:20px;}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:104px;display:grid;gap:24px;}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-1);
}
.side-card h3{font-size:15px;color:var(--brand-900);margin-bottom:14px;letter-spacing:.04em;}
.side-list{display:grid;gap:12px;}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:14px;color:var(--muted);padding:10px 12px;border-radius:10px;
  background:var(--bg);transition:color .3s var(--ease),background .3s var(--ease),transform .3s var(--ease);
}
.side-list a:hover{color:var(--brand-900);background:var(--brand-100);transform:translateX(3px);}
.side-note{font-size:13px;color:var(--muted);line-height:1.7;}

/* ---------- 文末 CTA ---------- */
.end-cta{
  position:relative;overflow:hidden;margin-top:56px;
  border-radius:var(--radius-card);padding:40px 40px;
  background:var(--brand-700) url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  color:#fff;box-shadow:var(--shadow-2);
}
.end-cta::after{content:"";position:absolute;inset:0;background:rgba(11,35,29,.78);}
.end-cta-inner{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between;}
.end-cta h2{font-size:clamp(20px,2.2vw,26px);color:#fff;margin-bottom:8px;}
.end-cta p{font-size:15px;color:rgba(255,255,255,.82);max-width:52ch;}
.end-cta .btn-primary{flex:0 0 auto;}

/* ---------- 相关推荐 ---------- */
.related{padding:var(--sect) 0 0;}
.sect-head{max-width:640px;margin-bottom:40px;}
.sect-head h2{font-size:clamp(24px,2.6vw,34px);color:var(--brand-900);}
.sect-head p{margin-top:12px;color:var(--muted);font-size:16px;}
.card-grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .38s var(--ease),box-shadow .38s var(--ease),border-color .38s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#D6D3CA;}
.card-media{position:relative;aspect-ratio:16/10;background:var(--sand-100);overflow:hidden;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease);}
.card:hover .card-media img{transform:scale(1.03);}
.card-badge{
  position:absolute;left:12px;bottom:12px;
  padding:5px 10px;border-radius:6px;font-size:12px;font-weight:500;letter-spacing:.06em;
  background:rgba(11,35,29,.86);color:#F3E9E0;
}
.card-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-body h3{font-size:19px;line-height:1.45;color:var(--brand-900);}
.card-body p{font-size:14.5px;color:var(--muted);line-height:1.75;}
.card-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;
}
.card-foot .arrow{transition:transform .3s var(--ease);color:var(--accent-500);}
.card:hover .card-foot .arrow{transform:translateX(4px);}

/* ---------- 返回入口 ---------- */
.back-links{
  display:flex;flex-wrap:wrap;gap:16px 32px;align-items:center;
  padding:40px 0 0;margin-top:8px;border-top:1px solid var(--line);
}
.back-links a{
  display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:500;
  color:var(--brand-700);transition:color .3s var(--ease);
}
.back-links a:hover{color:var(--accent-600);}
.back-links a .arrow{transition:transform .3s var(--ease);}
.back-links a:hover .arrow{transform:translateX(4px);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.78);margin-top:var(--sect);padding:72px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .logo{color:#fff;}
.footer-brand .logo-mark{background:var(--brand-500);color:#F4E7DC;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.75;color:rgba(255,255,255,.66);max-width:34ch;}
.footer-col h4{font-size:15px;color:#fff;font-family:var(--sans);font-weight:600;margin-bottom:16px;letter-spacing:.04em;}
.footer-col a{display:block;font-size:14px;color:rgba(255,255,255,.72);padding:6px 0;transition:color .3s var(--ease),transform .3s var(--ease);}
.footer-col a:hover{color:var(--accent-500);transform:translateX(3px);}
.footer-col .fc-text{font-size:14px;color:rgba(255,255,255,.66);padding:6px 0;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);font-variant-numeric:tabular-nums;
}

/* ---------- 移动端底部 CTA ---------- */
.mobile-cta{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:90;
  height:56px;padding:0 16px calc(0px + env(safe-area-inset-bottom));
  align-items:center;justify-content:space-between;gap:12px;
  background:rgba(11,35,29,.96);color:#fff;font-size:14px;
}
.mobile-cta .btn{padding:10px 18px;font-size:14px;}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:48px;}
  .article-side{position:static;grid-template-columns:repeat(2,minmax(0,1fr));display:grid;}
}
@media (max-width:1023px){
  :root{--sect:80px;}
  .container,.container-narrow{padding:0 32px;}
  .nav-links{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:flex-start;gap:2px;
    background:rgba(247,245,241,.98);border-bottom:1px solid var(--line);
    padding:12px 32px 20px;display:none;
  }
  .nav-links.is-open{display:flex;}
  .nav-link{width:100%;padding:12px 0;font-size:16px;}
  .nav-link::after{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-actions .btn-ghost{display:none;}
  .header-wrap{position:relative;}
  .card-grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:767px){
  :root{--sect:56px;}
  body{font-size:16px;}
  .container,.container-narrow{padding:0 20px;}
  .logo{font-size:18px;}
  .logo-mark{width:34px;height:34px;border-radius:10px;}
  .article-head h1{font-size:clamp(24px,6.4vw,32px);max-width:none;}
  .article-body{font-size:16.5px;}
  .end-cta{padding:28px 22px;}
  .end-cta .btn-primary{width:100%;}
  .card-grid-3{grid-template-columns:minmax(0,1fr);}
  .article-side{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .mobile-cta{display:flex;}
  body{padding-bottom:56px;}
}
@media (max-width:419px){
  .container,.container-narrow{padding:0 16px;}
  .article-meta{gap:8px 12px;font-size:13px;}
  .crumbs{font-size:13px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;}
  .card:hover{transform:none;}
}

/* roulang page: category1 */
:root{
  --brand-900:#0B231D;
  --brand-700:#103A32;
  --brand-500:#1F5A4C;
  --brand-100:#E4EDE9;
  --accent-500:#C8622F;
  --accent-600:#A94E22;
  --sand-100:#F1EBE0;
  --bg:#F7F5F1;
  --surface:#FFFFFF;
  --ink:#1A1D1C;
  --muted:#5C6663;
  --line:#E2E0DA;
  --ok:#2F7A5A;
  --warn:#B7791F;
  --err:#B23B2E;

  --radius-card:14px;
  --radius-img:12px;
  --radius-input:10px;
  --radius-pill:999px;
  --radius-badge:6px;

  --shadow-card:0 1px 2px rgba(11,35,29,.06);
  --shadow-hover:0 10px 30px -12px rgba(11,35,29,.18);

  --ease:cubic-bezier(.22,.61,.36,1);

  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --font-sans:"Noto Sans SC","PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;

  --section-y:104px;
  --gutter:40px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.012em;
  color:var(--ink);
  background:var(--bg);
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;transition:color .24s var(--ease);}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{font-family:var(--font-serif);font-weight:600;letter-spacing:.01em;margin:0;color:var(--brand-900);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.num{font-variant-numeric:tabular-nums;}

:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:3px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--gutter);}
.narrow{max-width:760px;}
.section{padding:var(--section-y) 0;}
.section--tight{padding:72px 0;}
.section--sand{background:var(--sand-100);}
.section--paper{background:var(--surface);}

/* ---------- 通用标题 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:500;letter-spacing:.16em;
  color:var(--brand-500);text-transform:uppercase;margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--accent-500);display:block;}
.h2{font-size:clamp(24px,2.6vw,36px);line-height:1.25;}
.h3{font-size:20px;line-height:1.45;}
.lead{font-size:17px;color:var(--muted);line-height:1.8;}
.section-head{max-width:720px;margin-bottom:56px;}
.section-head .lead{margin-top:16px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--font-sans);font-size:15px;font-weight:500;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;
  transition:background .28s var(--ease),color .28s var(--ease),border-color .28s var(--ease),transform .28s var(--ease),box-shadow .28s var(--ease);
}
.btn-primary{
  padding:12px 22px;border-radius:var(--radius-pill);
  background:var(--accent-500);color:#fff;
  box-shadow:0 1px 2px rgba(11,35,29,.08);
}
.btn-primary:hover{background:var(--accent-600);box-shadow:var(--shadow-hover);}
.btn-primary .arrow{transition:transform .28s var(--ease);}
.btn-primary:hover .arrow{transform:translateX(4px);}
.btn-ghost{
  padding:11px 20px;border-radius:var(--radius-pill);
  border-color:var(--line);background:transparent;color:var(--brand-700);
}
.btn-ghost:hover{border-color:var(--brand-700);background:var(--brand-100);}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:500;color:var(--brand-700);
}
.btn-link .arrow{transition:transform .28s var(--ease);}
.btn-link:hover{color:var(--accent-500);}
.btn-link:hover .arrow{transform:translateX(4px);}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--radius-badge);
  font-size:12.5px;font-weight:500;letter-spacing:.06em;
  background:var(--brand-100);color:var(--brand-700);
}
.badge--accent{background:rgba(200,98,47,.12);color:var(--accent-600);}
.badge--ok{background:rgba(47,122,90,.12);color:var(--ok);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,241,.72);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:background .32s var(--ease),border-color .32s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(247,245,241,.92);
  border-bottom-color:var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;height:78px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:10px;
  background:var(--brand-700);color:#fff;flex-shrink:0;
}
.logo-text{font-family:var(--font-serif);font-size:19px;font-weight:600;color:var(--brand-900);letter-spacing:.04em;}

.nav-links{display:flex;align-items:center;gap:30px;}
.nav-link{
  position:relative;padding:6px 2px;
  font-size:15px;font-weight:500;color:var(--ink);white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--accent-500);transform:scaleX(0);transform-origin:left;
  transition:transform .32s var(--ease);
}
.nav-link:hover{color:var(--brand-700);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand-900);}
.nav-link.is-active::after{transform:scaleX(1);}

.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}

.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:var(--surface);cursor:pointer;padding:0 11px;
}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--brand-900);transition:transform .3s var(--ease),opacity .3s var(--ease);}

.mobile-drawer{
  position:fixed;top:0;right:0;height:100%;width:min(84vw,340px);
  background:var(--surface);z-index:110;
  transform:translateX(102%);transition:transform .38s var(--ease);
  padding:96px 24px 32px;display:flex;flex-direction:column;gap:4px;
  overflow-y:auto;box-shadow:-24px 0 48px -24px rgba(11,35,29,.35);
}
.mobile-drawer.is-open{transform:translateX(0);}
.mobile-drawer .drawer-link{
  padding:14px 4px;font-size:16px;font-weight:500;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.mobile-drawer .drawer-link.is-active{color:var(--accent-600);}
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,35,29,.45);z-index:100;
  opacity:0;visibility:hidden;transition:opacity .32s var(--ease),visibility .32s var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
body.no-scroll{overflow:hidden;}

/* ---------- 首屏（分类页小号） ---------- */
.page-hero{
  position:relative;
  background:linear-gradient(180deg,#FBF9F5 0%,var(--sand-100) 100%);
  border-bottom:1px solid var(--line);
  padding:56px 0 72px;
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;right:-160px;top:-120px;width:520px;height:520px;
  border-radius:50%;background:radial-gradient(circle,rgba(31,90,76,.10),transparent 68%);
  pointer-events:none;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);margin-bottom:28px;}
.breadcrumb a:hover{color:var(--accent-500);}
.breadcrumb .sep{opacity:.55;}
.breadcrumb .current{color:var(--brand-700);font-weight:500;}
.page-hero h1{
  font-size:clamp(32px,4.2vw,48px);line-height:1.2;max-width:820px;
}
.page-hero .lead{margin-top:20px;max-width:660px;font-size:17px;}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:20px;margin-top:32px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}

/* ---------- 时间线 ---------- */
.timeline{display:flex;flex-direction:column;gap:64px;}
.tl-item{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.tl-item--reverse .tl-media{order:2;}
.tl-item--reverse .tl-body{order:1;}
.tl-media{position:relative;border-radius:var(--radius-img);overflow:hidden;background:var(--sand-100);border:1px solid var(--line);}
.tl-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .48s var(--ease);}
.tl-item:hover .tl-media img{transform:scale(1.02);}
.tl-body{position:relative;padding-left:0;}
.tl-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:50%;
  background:var(--brand-700);color:#fff;
  font-family:var(--font-serif);font-size:18px;
  margin-bottom:18px;
}
.tl-body h3{font-size:22px;margin-bottom:12px;}
.tl-body p{color:var(--muted);line-height:1.85;}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}

/* ---------- 要点清单 ---------- */
.point-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.point-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px 26px;box-shadow:var(--shadow-card);
  transition:transform .32s var(--ease),box-shadow .32s var(--ease),border-color .32s var(--ease);
}
.point-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand-100);}
.point-card .pt-ico{
  width:40px;height:40px;border-radius:10px;background:var(--brand-100);color:var(--brand-700);
  display:inline-flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.point-card h3{font-size:19px;margin-bottom:10px;}
.point-card p{font-size:15px;color:var(--muted);line-height:1.8;}

/* ---------- 深色数据带 ---------- */
.stat-band{
  background:var(--brand-900);color:#fff;position:relative;overflow:hidden;
}
.stat-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(11,35,29,.86),rgba(11,35,29,.86)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;opacity:.9;
}
.stat-band .container{position:relative;z-index:1;}
.stat-band .h2{color:#fff;}
.stat-band .eyebrow{color:#E7C9B4;}
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin-top:48px;}
.stat-item{border-top:1px solid rgba(255,255,255,.16);padding-top:24px;}
.stat-num{
  font-family:var(--font-serif);font-size:clamp(40px,4.4vw,56px);line-height:1.05;
  color:#fff;font-variant-numeric:tabular-nums;
}
.stat-unit{font-size:16px;margin-left:6px;color:rgba(255,255,255,.7);font-family:var(--font-sans);}
.stat-item p{margin-top:12px;color:rgba(255,255,255,.72);font-size:15px;line-height:1.7;max-width:280px;}

/* ---------- 表单区 ---------- */
.contact-wrap{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;}
.trust-list{display:flex;flex-direction:column;gap:20px;margin-top:28px;}
.trust-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:var(--muted);line-height:1.75;}
.trust-list svg{flex-shrink:0;margin-top:6px;color:var(--ok);}

.form-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:32px;box-shadow:var(--shadow-card);
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:500;color:var(--brand-900);margin-bottom:8px;}
.field input,.field select{
  width:100%;padding:12px 14px;font-size:15px;
  border:1px solid var(--line);border-radius:var(--radius-input);
  background:var(--surface);color:var(--ink);
  transition:border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.field input::placeholder{color:#A6ADAA;}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--brand-700);
  box-shadow:0 0 0 4px rgba(16,58,50,.10);
}
.field.has-error input,.field.has-error select{border-color:var(--err);}
.field-error{display:none;font-size:13px;color:var(--err);margin-top:6px;}
.field.has-error .field-error{display:block;}

.check{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--muted);line-height:1.65;margin:6px 0 20px;cursor:pointer;}
.check input{margin-top:4px;accent-color:var(--brand-700);}
.form-note{font-size:13px;color:var(--muted);margin-top:14px;line-height:1.7;}
.form-success{
  display:flex;align-items:center;gap:12px;padding:20px;
  border:1px solid rgba(47,122,90,.28);background:rgba(47,122,90,.08);
  border-radius:var(--radius-card);color:var(--ok);font-size:15.5px;font-weight:500;
}

/* ---------- 横向链接条 ---------- */
.cross-links{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.cross-card{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:26px 28px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-card);
  transition:transform .32s var(--ease),box-shadow .32s var(--ease),border-color .32s var(--ease);
}
.cross-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand-100);}
.cross-card .cc-label{font-size:12.5px;letter-spacing:.12em;color:var(--accent-500);text-transform:uppercase;margin-bottom:8px;}
.cross-card h3{font-size:19px;margin-bottom:6px;}
.cross-card p{font-size:14px;color:var(--muted);}
.cross-card .cc-arrow{
  width:40px;height:40px;border-radius:50%;background:var(--brand-100);color:var(--brand-700);
  display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;
  transition:background .28s var(--ease),color .28s var(--ease),transform .28s var(--ease);
}
.cross-card:hover .cc-arrow{background:var(--accent-500);color:#fff;transform:translateX(4px);}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);position:relative;}
.faq-item summary{
  list-style:none;cursor:pointer;
  padding:22px 40px 22px 20px;position:relative;
  transition:background .28s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  background:var(--accent-500);border-radius:2px;
  transform:scaleY(0);transform-origin:top;
  transition:transform .32s var(--ease);
}
.faq-item summary h3{font-size:18px;line-height:1.5;color:var(--brand-900);}
.faq-item summary::after{
  content:"";position:absolute;right:14px;top:50%;width:10px;height:10px;
  border-right:2px solid var(--brand-500);border-bottom:2px solid var(--brand-500);
  transform:translateY(-70%) rotate(45deg);
  transition:transform .32s var(--ease);
}
.faq-item[open] summary::before{transform:scaleY(1);}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(225deg);}
.faq-item summary:hover{background:rgba(241,235,224,.5);}
.faq-answer{padding:0 40px 26px 20px;}
.faq-answer p{font-size:15px;line-height:1.8;color:var(--muted);}

/* ---------- 底部 CTA ---------- */
.cta-band{
  position:relative;border-radius:var(--radius-card);overflow:hidden;
  background-image:linear-gradient(rgba(11,35,29,.88),rgba(11,35,29,.88)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  padding:64px 56px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,32px);max-width:560px;line-height:1.3;}
.cta-band p{color:rgba(255,255,255,.72);margin-top:14px;font-size:15.5px;max-width:560px;}
.cta-band .btn-primary{background:var(--accent-500);}
.cta-band .btn-primary:hover{background:var(--accent-600);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);padding:72px 0 32px;margin-top:var(--section-y);}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .logo-mark{background:rgba(255,255,255,.10);}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.85;max-width:300px;color:rgba(255,255,255,.62);}
.footer-col h4{font-family:var(--font-sans);font-size:14px;font-weight:600;color:#fff;letter-spacing:.08em;margin-bottom:18px;}
.footer-col a{display:block;font-size:14px;color:rgba(255,255,255,.72);padding:6px 0;}
.footer-col a:hover{color:var(--accent-500);}
.footer-col .fc-text{font-size:14px;color:rgba(255,255,255,.62);padding:6px 0;}
.footer-bottom{
  margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.52);
}

/* ---------- 移动底部 CTA ---------- */
.mobile-cta-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;display:none;
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  background:rgba(247,245,241,.94);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  border-top:1px solid var(--line);
}

/* ---------- 弹层 ---------- */
.modal{
  position:fixed;inset:0;z-index:140;display:flex;align-items:center;justify-content:center;
  padding:24px;background:rgba(11,35,29,.55);
  opacity:0;visibility:hidden;transition:opacity .32s var(--ease),visibility .32s var(--ease);
}
.modal.is-open{opacity:1;visibility:visible;}
.modal-card{
  position:relative;width:min(520px,100%);background:var(--surface);
  border-radius:var(--radius-card);padding:34px;
  transform:translateY(14px);transition:transform .38s var(--ease);
  max-height:90vh;overflow-y:auto;
}
.modal.is-open .modal-card{transform:translateY(0);}
.modal-close{
  position:absolute;top:14px;right:14px;width:36px;height:36px;border-radius:50%;
  border:1px solid var(--line);background:var(--surface);cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;color:var(--muted);
  transition:border-color .28s var(--ease),color .28s var(--ease);
}
.modal-close:hover{border-color:var(--brand-700);color:var(--brand-700);}
.modal-card h2{font-size:24px;margin-bottom:10px;}
.modal-card .lead{font-size:15px;margin-bottom:24px;}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--section-y:88px;}
  .tl-item{gap:40px;}
}
@media (max-width:1023px){
  :root{--gutter:32px;--section-y:80px;}
  .nav-links,.header-actions{display:none;}
  .nav-toggle{display:flex;}
  .tl-item{grid-template-columns:1fr;gap:28px;}
  .tl-item--reverse .tl-media{order:0;}
  .tl-item--reverse .tl-body{order:1;}
  .stat-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .contact-wrap{grid-template-columns:1fr;gap:40px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  :root{--gutter:20px;--section-y:56px;}
  body{font-size:16px;}
  .point-grid{grid-template-columns:1fr;}
  .cross-links{grid-template-columns:1fr;}
  .stat-grid{grid-template-columns:1fr;}
  .cta-band{padding:40px 24px;}
  .mobile-cta-bar{display:block;}
  body{padding-bottom:72px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .page-hero{padding:36px 0 52px;}
  .tl-index{width:40px;height:40px;font-size:17px;}
  .form-card{padding:24px 20px;}
}
@media (max-width:520px){
  .page-hero h1{font-size:30px;}
  .section-head{margin-bottom:36px;}
  .faq-item summary{padding:18px 34px 18px 16px;}
  .faq-item summary h3{font-size:16.5px;}
  .faq-answer{padding:0 20px 22px 16px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category2 */
:root{
  --brand-900:#0B231D;
  --brand-700:#103A32;
  --brand-500:#1F5A4C;
  --brand-100:#E4EDE9;
  --accent-500:#C8622F;
  --accent-600:#A94E22;
  --sand-100:#F1EBE0;
  --bg:#F7F5F1;
  --surface:#FFFFFF;
  --ink:#1A1D1C;
  --muted:#5C6663;
  --line:#E2E0DA;
  --ok:#2F7A5A;
  --warn:#B7791F;
  --err:#B23B2E;
  --radius-card:14px;
  --radius-img:12px;
  --radius-input:10px;
  --radius-pill:999px;
  --radius-badge:6px;
  --shadow-sm:0 1px 2px rgba(11,35,29,.06);
  --shadow-md:0 10px 30px -12px rgba(11,35,29,.18);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:"Noto Sans SC","PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::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:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -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{font-family:var(--font-serif);font-weight:600;margin:0;letter-spacing:.02em;color:var(--brand-900);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 40px;}
.section{padding:104px 0;}
.section-tight{padding:72px 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:500;letter-spacing:.16em;
  color:var(--accent-600);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent-500);border-radius:2px;}
.section-head{max-width:720px;margin-bottom:48px;}
.section-head h2{font-size:clamp(24px,2.6vw,36px);line-height:1.25;margin-bottom:16px;}
.section-head p{color:var(--muted);font-size:16px;}
.num{font-variant-numeric:tabular-nums;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-pill);
  font-size:15px;font-weight:500;
  padding:12px 22px;
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .28s var(--ease),color .28s var(--ease),border-color .28s var(--ease),transform .28s var(--ease),box-shadow .28s var(--ease);
  white-space:nowrap;
}
.btn svg{transition:transform .28s var(--ease);}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:0 8px 20px -12px rgba(200,98,47,.9);}
.btn-primary:hover{background:var(--accent-600);}
.btn-primary:hover svg{transform:translateX(4px);}
.btn-outline{background:transparent;color:var(--brand-700);border-color:var(--line);}
.btn-outline:hover{border-color:var(--brand-700);background:var(--brand-100);}
.btn-ghost{background:transparent;color:var(--brand-700);border-color:var(--line);padding:10px 18px;font-size:14px;}
.btn-ghost:hover{background:var(--surface);border-color:var(--brand-500);}
.btn-dark{background:var(--brand-700);color:#fff;}
.btn-dark:hover{background:var(--brand-900);}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:500;color:var(--brand-700);
  border-bottom:1px solid transparent;padding-bottom:2px;
  transition:color .28s var(--ease),border-color .28s var(--ease);
}
.text-link svg{transition:transform .28s var(--ease);}
.text-link:hover{color:var(--accent-600);border-color:var(--accent-500);}
.text-link:hover svg{transform:translateX(4px);}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,241,.92);
  border-bottom:1px solid transparent;
  transition:background-color .32s var(--ease),border-color .32s var(--ease),box-shadow .32s var(--ease),backdrop-filter .32s var(--ease);
}
.site-header.is-stuck{
  background:rgba(247,245,241,.92);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom-color:var(--line);
  box-shadow:0 6px 24px -20px rgba(11,35,29,.55);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  min-height:76px;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:34px;height:34px;display:grid;place-items:center;
  background:var(--brand-700);color:#fff;border-radius:10px;flex-shrink:0;
}
.logo-text{font-family:var(--font-serif);font-size:19px;font-weight:600;color:var(--brand-900);letter-spacing:.02em;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;display:inline-block;
  padding:10px 12px;font-size:15px;color:var(--brand-900);
  transition:color .28s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:var(--accent-500);border-radius:2px;
  transform:scaleX(0);transform-origin:left center;
  transition:transform .32s var(--ease);
}
.nav-link:hover{color:var(--accent-600);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--brand-900);font-weight:500;}
.nav-link.active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  background:var(--surface);border:1px solid var(--line);cursor:pointer;
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand-900);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand-900);border-radius:2px;
  transition:transform .28s var(--ease);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:var(--surface);
  padding:16px 20px 24px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer a{
  display:block;padding:14px 4px;font-size:16px;color:var(--brand-900);
  border-bottom:1px solid var(--line);
}
.mobile-drawer a.active{color:var(--accent-600);font-weight:500;}
.mobile-drawer .btn{margin-top:18px;width:100%;}

/* ============ 内页 Hero ============ */
.page-hero{padding:56px 0 88px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:28px;}
.breadcrumb a{color:var(--muted);transition:color .28s var(--ease);}
.breadcrumb a:hover{color:var(--accent-600);}
.breadcrumb span.sep{color:var(--line);}
.breadcrumb .current{color:var(--brand-900);}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
.hero-copy h1{font-size:clamp(30px,3.6vw,46px);line-height:1.22;margin-bottom:20px;}
.hero-copy .lead{font-size:17px;color:var(--muted);margin-bottom:32px;max-width:520px;}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:20px;margin-bottom:32px;}
.hero-facts{display:flex;flex-wrap:wrap;gap:28px;padding-top:24px;border-top:1px solid var(--line);}
.fact strong{display:block;font-family:var(--font-serif);font-size:26px;color:var(--brand-700);font-variant-numeric:tabular-nums;}
.fact span{font-size:13px;color:var(--muted);}
.hero-visual{position:relative;}
.hero-visual .shot{
  border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line);
  background:var(--sand-100);box-shadow:var(--shadow-sm);
  aspect-ratio:16/11;
}
.hero-visual .shot img{width:100%;height:100%;object-fit:cover;}
.float-card{
  position:absolute;left:-24px;bottom:-24px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-md);padding:16px 20px;max-width:230px;
}
.float-card .tag{font-size:12px;letter-spacing:.1em;color:var(--muted);display:block;margin-bottom:6px;}
.float-card strong{font-family:var(--font-serif);font-size:22px;color:var(--brand-700);font-variant-numeric:tabular-nums;display:block;}
.float-card small{font-size:13px;color:var(--muted);}

/* ============ 对比矩阵 ============ */
.compare-block{background:var(--sand-100);}
.cmp-head{
  display:grid;grid-template-columns:1.1fr 1.6fr 1.6fr;gap:24px;
  padding:0 28px 16px;font-size:13px;letter-spacing:.08em;color:var(--muted);
}
.cmp-table{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-sm);
}
.cmp-row{
  display:grid;grid-template-columns:1.1fr 1.6fr 1.6fr;gap:24px;
  padding:24px 28px;border-top:1px solid var(--line);
  transition:background-color .28s var(--ease);
}
.cmp-row:first-child{border-top:none;}
.cmp-row:nth-child(even){background:var(--sand-100);}
.cmp-row:hover{background:var(--brand-100);}
.cmp-key{display:flex;align-items:flex-start;gap:10px;font-weight:500;color:var(--brand-900);}
.cmp-key .dot{
  width:8px;height:8px;border-radius:50%;background:var(--accent-500);
  margin-top:9px;flex-shrink:0;
}
.cmp-cell{font-size:15px;color:var(--muted);}
.cmp-cell.good{color:var(--brand-700);}
.cmp-badge{
  display:inline-block;font-size:12px;padding:3px 8px;border-radius:var(--radius-badge);
  background:var(--brand-100);color:var(--brand-700);margin-right:8px;letter-spacing:.04em;
}
.cmp-badge.warn{background:#F7EBD8;color:var(--warn);}

/* ============ FAQ 手风琴 ============ */
.faq-list{max-width:860px;}
.faq-item{border-bottom:1px solid var(--line);transition:border-color .28s var(--ease),padding .28s var(--ease);}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:22px 44px 22px 0;
  font-family:var(--font-serif);font-size:19px;color:var(--brand-900);
  transition:color .28s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"";position:absolute;right:8px;top:50%;
  width:11px;height:11px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);
  transform:translateY(-70%) rotate(45deg);
  transition:transform .32s var(--ease),border-color .28s var(--ease);
}
.faq-item summary:hover{color:var(--accent-600);}
.faq-item summary:hover::after{border-color:var(--accent-500);}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(-135deg);border-color:var(--accent-500);}
.faq-item[open]{border-left:3px solid var(--accent-500);padding-left:20px;}
.faq-item .faq-answer{padding:0 44px 24px 0;font-size:15px;line-height:1.8;color:var(--muted);}

/* ============ 横向链接条 ============ */
.link-strip{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.strip-card{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px 30px;box-shadow:var(--shadow-sm);
  transition:transform .32s var(--ease),box-shadow .32s var(--ease),border-color .32s var(--ease);
}
.strip-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--brand-100);}
.strip-card h3{font-size:19px;margin-bottom:8px;}
.strip-card p{font-size:14px;color:var(--muted);}
.strip-arrow{
  width:40px;height:40px;border-radius:50%;background:var(--brand-100);color:var(--brand-700);
  display:grid;place-items:center;flex-shrink:0;
  transition:background-color .28s var(--ease),color .28s var(--ease),transform .28s var(--ease);
}
.strip-card:hover .strip-arrow{background:var(--accent-500);color:#fff;transform:translateX(4px);}

/* ============ 表单 ============ */
.contact-block{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start;}
.trust-list li{display:flex;gap:14px;padding:18px 0;border-bottom:1px solid var(--line);}
.trust-list li:first-child{padding-top:0;}
.trust-icon{
  width:36px;height:36px;border-radius:10px;background:var(--brand-100);color:var(--brand-700);
  display:grid;place-items:center;flex-shrink:0;
}
.trust-list h3{font-size:17px;margin-bottom:4px;}
.trust-list p{font-size:14px;color:var(--muted);}
.form-card{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:32px;box-shadow:var(--shadow-sm);
}
.form-card h3{font-size:21px;margin-bottom:8px;}
.form-card .form-sub{font-size:14px;color:var(--muted);margin-bottom:24px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:500;margin-bottom:8px;color:var(--brand-900);}
.field input,.field select{
  width:100%;padding:12px 14px;border-radius:var(--radius-input);
  border:1px solid var(--line);background:var(--surface);
  transition:border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--brand-700);
  box-shadow:0 0 0 4px rgba(16,58,50,.10);
}
.field.has-error input,.field.has-error select{border-color:var(--err);}
.field-error{display:none;font-size:13px;color:var(--err);margin-top:6px;}
.field.has-error .field-error{display:block;}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--muted);margin:6px 0 20px;}
.consent input{margin-top:4px;}
.form-card .btn{width:100%;}
.form-success{
  display:flex;align-items:center;gap:12px;
  background:var(--brand-100);color:var(--brand-700);
  border-radius:var(--radius-card);padding:22px 24px;font-size:15px;font-weight:500;
}
.privacy-bar{
  display:flex;align-items:center;gap:12px;
  background:var(--sand-100);border-radius:var(--radius-card);
  padding:16px 22px;font-size:13px;color:var(--muted);line-height:1.7;margin-top:40px;
}
.privacy-bar svg{flex-shrink:0;color:var(--brand-700);}

/* ============ 结尾 CTA ============ */
.final-cta{
  border-radius:18px;padding:64px 56px;color:#fff;position:relative;overflow:hidden;
  background:
    linear-gradient(rgba(11,35,29,.92),rgba(16,58,50,.88)),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
}
.final-cta h2{color:#fff;font-size:clamp(24px,2.6vw,34px);margin-bottom:16px;}
.final-cta p{color:rgba(255,255,255,.78);max-width:620px;margin-bottom:32px;font-size:16px;}
.final-cta .btn-primary{box-shadow:none;}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);padding:72px 0 32px;margin-top:96px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{font-size:14px;line-height:1.8;margin-top:18px;max-width:320px;color:rgba(255,255,255,.66);}
.footer-col h4{font-family:var(--font-sans);font-size:14px;font-weight:500;letter-spacing:.06em;color:#fff;margin-bottom:18px;}
.footer-col a,.footer-col .fc-text{display:block;font-size:14px;color:rgba(255,255,255,.7);padding:6px 0;transition:color .28s var(--ease);}
.footer-col a:hover{color:var(--accent-500);}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  border-top:1px solid rgba(255,255,255,.12);margin-top:48px;padding-top:24px;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ============ 移动底栏 ============ */
.mobile-cta-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:rgba(247,245,241,.96);backdrop-filter:blur(8px);
  border-top:1px solid var(--line);
  padding:8px 20px calc(8px + env(safe-area-inset-bottom));
  align-items:center;justify-content:space-between;gap:12px;height:56px;
}
.mobile-cta-bar span{font-size:13px;color:var(--muted);}
.mobile-cta-bar .btn{padding:9px 18px;font-size:14px;}

/* ============ 状态样式 ============ */
.skeleton{background:var(--sand-100);border-radius:var(--radius-img);position:relative;overflow:hidden;}
.skeleton::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.65),transparent);
  animation:sk 1.6s infinite;
}
@keyframes sk{0%{transform:translateX(-100%);}100%{transform:translateX(100%);}}
.empty-state{
  text-align:center;padding:56px 24px;border:1px dashed var(--line);
  border-radius:var(--radius-card);background:var(--surface);color:var(--muted);
}
.badge-ok{display:inline-flex;align-items:center;gap:6px;font-size:12px;padding:3px 8px;border-radius:var(--radius-badge);background:var(--brand-100);color:var(--ok);}
.badge-warn{display:inline-flex;align-items:center;gap:6px;font-size:12px;padding:3px 8px;border-radius:var(--radius-badge);background:#F7EBD8;color:var(--warn);}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 32px;}
  .section{padding:88px 0;}
  .hero-grid{gap:36px;}
}
@media (max-width:1023px){
  .nav-links,.header-actions .btn-ghost{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-visual{order:-1;}
  .float-card{left:auto;right:16px;bottom:-20px;}
  .cmp-head,.cmp-row{grid-template-columns:1fr 1.4fr 1.4fr;gap:16px;padding-left:20px;padding-right:20px;}
  .contact-grid{grid-template-columns:1fr;gap:40px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .page-hero{padding:32px 0 56px;}
  .hero-copy h1{font-size:30px;}
  .hero-actions{gap:14px;}
  .cmp-head{display:none;}
  .cmp-row{grid-template-columns:1fr;gap:10px;padding:20px;}
  .cmp-cell::before{
    content:attr(data-label);display:block;
    font-size:12px;letter-spacing:.08em;color:var(--brand-500);margin-bottom:4px;
  }
  .link-strip{grid-template-columns:1fr;}
  .final-cta{padding:44px 24px;border-radius:14px;}
  .form-card{padding:24px;}
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{padding:56px 0 96px;margin-top:64px;}
  .mobile-cta-bar{display:flex;}
  body{padding-bottom:56px;}
}
@media (max-width:419px){
  .hero-copy h1{font-size:26px;}
  .fact strong{font-size:22px;}
  .float-card{position:static;margin-top:16px;max-width:none;}
  .btn{width:100%;}
  .hero-actions .text-link{width:100%;}
  .mobile-cta-bar .btn{width:auto;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
  .strip-card:hover,.btn-primary:hover svg,.text-link:hover svg{transform:none;}
}

/* roulang page: category3 */
:root{
  --brand-900:#0B231D;
  --brand-700:#103A32;
  --brand-500:#1F5A4C;
  --brand-100:#E4EDE9;
  --accent-500:#C8622F;
  --accent-600:#A94E22;
  --sand-100:#F1EBE0;
  --bg:#F7F5F1;
  --surface:#FFFFFF;
  --ink:#1A1D1C;
  --muted:#5C6663;
  --line:#E2E0DA;
  --ok:#2F7A5A;
  --warn:#B7791F;
  --err:#B23B2E;

  --radius-card:14px;
  --radius-img:12px;
  --radius-input:10px;
  --radius-pill:999px;
  --radius-badge:6px;

  --shadow-card:0 1px 2px rgba(11,35,29,.06);
  --shadow-hover:0 10px 30px -12px rgba(11,35,29,.18);

  --ease:cubic-bezier(.22,.61,.36,1);
  --t:320ms;

  --container:1200px;
  --narrow:760px;

  --font-serif:"Noto Serif SC","Songti SC","Source Han Serif SC",Georgia,serif;
  --font-sans:"Noto Sans SC","PingFang SC","HarmonyOS Sans","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;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.012em;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:inherit;text-decoration:none;transition:color var(--t) var(--ease);}
a:hover{color:var(--accent-500);}
h1,h2,h3,h4{font-family:var(--font-serif);font-weight:600;margin:0;letter-spacing:.014em;color:var(--brand-900);}
h1{font-size:clamp(32px,4.2vw,54px);line-height:1.2;}
h2{font-size:clamp(24px,2.6vw,36px);line-height:1.25;}
h3{font-size:20px;line-height:1.4;}
p{margin:0 0 1em;}
ul,ol{margin:0 0 1em;padding-left:1.25em;line-height:1.85;}
li{margin-bottom:.4em;}
button,input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:4px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 40px;
}
.narrow{max-width:var(--narrow);margin:0 auto;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(247,245,241,.94);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  transition:box-shadow var(--t) var(--ease),border-color var(--t) var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.is-stuck{
  border-bottom:1px solid var(--line);
  box-shadow:0 6px 20px -16px rgba(11,35,29,.35);
}
.nav-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:76px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-serif);
  font-weight:600;
  font-size:19px;
  color:var(--brand-900);
  white-space:nowrap;
}
.logo-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:36px;
  height:36px;
  border-radius:10px;
  background:var(--brand-700);
  color:#fff;
  flex:0 0 auto;
}
.logo:hover{color:var(--brand-700);}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
  flex-wrap:nowrap;
}
.nav-link{
  position:relative;
  padding:10px 14px;
  font-size:15px;
  color:var(--ink);
  font-weight:500;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:4px;
  height:2px;
  background:var(--accent-500);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--t) var(--ease);
}
.nav-link:hover::after,
.nav-link:focus-visible::after{transform:scaleX(1);}
.nav-link[aria-current="page"]{color:var(--brand-700);}
.nav-link[aria-current="page"]::after{transform:scaleX(1);background:var(--brand-700);}
.nav-actions{display:flex;align-items:center;gap:10px;}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  border-radius:var(--radius-pill);
  border:1px solid transparent;
  font-size:15px;
  font-weight:500;
  cursor:pointer;
  transition:background-color var(--t) var(--ease),color var(--t) var(--ease),border-color var(--t) var(--ease),transform var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:0 6px 18px -10px rgba(200,98,47,.75);}
.btn-primary:hover{background:var(--accent-600);color:#fff;transform:translateY(-2px);}
.btn-primary .arrow{transition:transform var(--t) var(--ease);}
.btn-primary:hover .arrow{transform:translateX(4px);}
.btn-ghost{border-color:var(--line);background:transparent;color:var(--brand-700);}
.btn-ghost:hover{border-color:var(--brand-700);color:var(--brand-700);background:var(--brand-100);}
.btn-light{background:#fff;color:var(--brand-900);border-color:#fff;}
.btn-light:hover{background:var(--sand-100);color:var(--brand-900);}
.btn-outline-light{border-color:rgba(255,255,255,.55);color:#fff;background:transparent;}
.btn-outline-light:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.08);}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}
.btn-sm{padding:9px 16px;font-size:14px;}

.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:10px;
  background:var(--surface);
  align-items:center;
  justify-content:center;
  cursor:pointer;
}
.nav-toggle span{
  display:block;width:18px;height:2px;background:var(--brand-900);position:relative;
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand-900);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ============ 通用区块 ============ */
.section{padding:104px 0;}
.section-tight{padding:72px 0;}
.section-sand{background:var(--sand-100);}
.section-dark{background:var(--brand-900);color:#fff;}
.section-dark h2,.section-dark h3{color:#fff;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--accent-600);
  font-weight:500;
  margin-bottom:16px;
}
.eyebrow::before{
  content:"";
  width:24px;height:1px;background:var(--accent-500);
}
.section-head{max-width:720px;margin-bottom:48px;}
.section-head p{color:var(--muted);margin-top:14px;font-size:16px;}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--muted);
  padding-top:28px;
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--accent-500);}
.breadcrumb .sep{opacity:.55;}
.breadcrumb .current{color:var(--brand-700);font-weight:500;}

/* ============ 小 Hero ============ */
.cat-hero{padding:32px 0 96px;}
.cat-hero-grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:24px;
  align-items:center;
}
.cat-hero-copy{grid-column:span 6;}
.cat-hero-copy h1{margin-bottom:16px;}
.cat-hero-copy .lead{
  font-size:17px;
  color:var(--muted);
  max-width:520px;
  margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:500;color:var(--brand-700);
}
.link-arrow .arrow{transition:transform var(--t) var(--ease);}
.link-arrow:hover{color:var(--accent-500);}
.link-arrow:hover .arrow{transform:translateX(4px);}
.cat-hero-media{grid-column:span 6;position:relative;}
.cat-hero-media img{
  width:100%;
  height:380px;
  object-fit:cover;
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-hover);
}
.float-card{
  position:absolute;
  left:-20px;
  bottom:-24px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:16px 20px;
  box-shadow:0 14px 34px -18px rgba(11,35,29,.4);
  min-width:190px;
}
.float-card .fc-num{
  font-family:var(--font-serif);
  font-size:28px;
  color:var(--brand-700);
  line-height:1.1;
}
.float-card .fc-label{font-size:13px;color:var(--muted);}

/* ============ 步骤流程 ============ */
.steps{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  position:relative;
  margin-top:8px;
}
.steps::before{
  content:"";
  position:absolute;
  top:24px;
  left:8%;
  right:8%;
  height:1px;
  background:linear-gradient(90deg,var(--brand-100),var(--brand-500),var(--brand-100));
}
.step{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:32px 24px 28px;
  box-shadow:var(--shadow-card);
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.step-dot{
  position:relative;
  z-index:1;
  width:48px;height:48px;
  border-radius:50%;
  background:var(--brand-700);
  color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-serif);
  font-size:20px;
  margin-bottom:20px;
  border:6px solid var(--bg);
  box-sizing:content-box;
  margin-left:-6px;
}
.step h3{margin-bottom:10px;}
.step p{color:var(--muted);font-size:15px;margin:0 0 16px;}
.step .tag-list{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-block;
  padding:4px 10px;
  border-radius:var(--radius-badge);
  background:var(--brand-100);
  color:var(--brand-700);
  font-size:12px;
  font-weight:500;
  letter-spacing:.06em;
}
.tag-warn{background:#FBF1DF;color:var(--warn);}
.tag-ok{background:#E5F1EA;color:var(--ok);}

/* ============ 卡片网格（1大2小） ============ */
.card-grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:24px;
}
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease);
  display:flex;
  flex-direction:column;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.card:focus-within{outline:2px solid var(--accent-500);outline-offset:2px;}
.card-media{position:relative;}
.card-media img{width:100%;height:200px;object-fit:cover;border-radius:0;}
.card-lg{grid-column:span 6;}
.card-lg .card-media img{height:300px;}
.card-sm{grid-column:span 3;}
.card-body{padding:24px;display:flex;flex-direction:column;flex:1;}
.card-body h3{margin-bottom:10px;}
.card-body p{color:var(--muted);font-size:15px;margin-bottom:18px;}
.card-foot{
  margin-top:auto;
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--muted);
  border-top:1px solid var(--line);
  padding-top:14px;
}
.badge{
  position:absolute;
  top:14px;left:14px;
  background:rgba(11,35,29,.86);
  color:#fff;
  font-size:12px;
  letter-spacing:.08em;
  padding:5px 10px;
  border-radius:var(--radius-badge);
}

/* ============ 异常对照清单 ============ */
.check-list{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:24px;
}
.check-item{
  grid-column:span 4;
  background:var(--surface);
  border:1px solid var(--line);
  border-left:3px solid var(--brand-500);
  border-radius:var(--radius-card);
  padding:24px;
  transition:border-color var(--t) var(--ease),transform var(--t) var(--ease);
}
.check-item:hover{transform:translateY(-4px);border-left-color:var(--accent-500);}
.check-item h3{font-size:18px;margin-bottom:8px;}
.check-item p{font-size:15px;color:var(--muted);margin:0;}
.check-item .status{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:500;letter-spacing:.08em;
  color:var(--ok);margin-bottom:12px;
}
.check-item .status.warn{color:var(--warn);}
.check-item .status.err{color:var(--err);}

/* ============ FAQ ============ */
.faq{border-top:1px solid var(--line);}
.faq details{
  border-bottom:1px solid var(--line);
  padding:0 0 0 0;
  transition:background var(--t) var(--ease);
}
.faq summary{
  list-style:none;
  cursor:pointer;
  padding:22px 8px 22px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  border-left:3px solid transparent;
  padding-left:16px;
  transition:border-color var(--t) var(--ease),color var(--t) var(--ease);
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary h3{
  font-size:19px;
  display:inline;
  margin:0;
}
.faq summary .plus{
  flex:0 0 auto;
  width:22px;height:22px;
  position:relative;
}
.faq summary .plus::before,
.faq summary .plus::after{
  content:"";position:absolute;background:var(--brand-500);transition:transform var(--t) var(--ease),background var(--t) var(--ease);
}
.faq summary .plus::before{left:0;top:10px;width:22px;height:2px;}
.faq summary .plus::after{left:10px;top:0;width:2px;height:22px;}
.faq details[open] summary{border-left-color:var(--accent-500);}
.faq details[open] summary .plus::after{transform:scaleY(0);}
.faq details[open] summary .plus::before{background:var(--accent-500);}
.faq .answer{
  padding:0 8px 24px 16px;
  font-size:15px;
  line-height:1.8;
  color:var(--muted);
}

/* ============ 表单 ============ */
.form-wrap{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:24px;
  align-items:start;
}
.trust-col{grid-column:span 5;}
.trust-col h2{margin-bottom:18px;}
.trust-col > p{color:var(--muted);margin-bottom:28px;}
.trust-item{
  display:flex;
  gap:14px;
  padding:16px 0;
  border-top:1px solid var(--line);
}
.trust-item:first-of-type{border-top:none;}
.trust-item .ti-icon{
  flex:0 0 auto;
  width:36px;height:36px;
  border-radius:10px;
  background:var(--brand-100);
  color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;
}
.trust-item h3{font-size:17px;margin-bottom:4px;}
.trust-item p{font-size:14px;color:var(--muted);margin:0;}

.form-card{
  grid-column:span 7;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:32px;
  box-shadow:var(--shadow-card);
}
.form-card h3{font-size:20px;margin-bottom:6px;}
.form-card .form-note{font-size:14px;color:var(--muted);margin-bottom:24px;}
.field{margin-bottom:18px;}
.field label{
  display:block;
  font-size:14px;
  font-weight:500;
  color:var(--brand-700);
  margin-bottom:8px;
}
.field input[type="text"],
.field input[type="tel"],
.field input[type="email"],
.field select{
  width:100%;
  padding:12px 14px;
  border:1px solid var(--line);
  border-radius:var(--radius-input);
  background:#FCFBF9;
  transition:border-color var(--t) var(--ease),box-shadow var(--t) var(--ease),background var(--t) var(--ease);
}
.field input:focus,
.field select:focus{
  outline:none;
  border-color:var(--brand-700);
  background:#fff;
  box-shadow:0 0 0 4px rgba(16,58,50,.12);
}
.field .err-msg{
  display:none;
  font-size:13px;
  color:var(--err);
  margin-top:6px;
}
.field.has-error input,
.field.has-error select{border-color:var(--err);}
.field.has-error .err-msg{display:block;}
.consent{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:13px;
  color:var(--muted);
  margin:6px 0 20px;
}
.consent input{margin-top:5px;accent-color:var(--brand-700);}
.form-card .btn{width:100%;}
.form-success{
  display:none;
  align-items:center;
  gap:10px;
  padding:16px;
  border-radius:var(--radius-input);
  background:#E5F1EA;
  color:var(--ok);
  font-size:15px;
  font-weight:500;
}
.form-success.is-visible{display:flex;}

/* ============ 隐私说明条 ============ */
.privacy-bar{
  background:var(--sand-100);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:18px 0;
}
.privacy-inner{
  display:flex;
  align-items:center;
  gap:12px;
  font-size:13px;
  color:var(--muted);
}
.privacy-inner .shield{color:var(--brand-500);flex:0 0 auto;}

/* ============ 横向链接条 ============ */
.cross-links{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.cross-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px 28px;
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease),border-color var(--t) var(--ease);
}
.cross-link:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  border-color:var(--brand-500);
}
.cross-link h3{font-size:19px;margin-bottom:6px;}
.cross-link p{font-size:14px;color:var(--muted);margin:0;}
.cross-link .arrow{color:var(--accent-500);transition:transform var(--t) var(--ease);flex:0 0 auto;}
.cross-link:hover .arrow{transform:translateX(4px);}

/* ============ 底部 CTA ============ */
.cta-band{
  background:var(--brand-700);
  color:#fff;
  border-radius:var(--radius-card);
  padding:56px;
  display:grid;
  grid-template-columns:1.3fr 1fr;
  gap:32px;
  align-items:center;
}
.cta-band h2{color:#fff;margin-bottom:12px;}
.cta-band p{color:rgba(255,255,255,.8);margin:0;}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--brand-900);
  color:rgba(255,255,255,.78);
  padding:72px 0 28px;
  margin-top:104px;
}
.site-footer h4{
  color:#fff;
  font-size:15px;
  font-family:var(--font-sans);
  font-weight:600;
  letter-spacing:.06em;
  margin-bottom:16px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:32px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(255,255,255,.14);
}
.footer-brand .logo{color:#fff;margin-bottom:16px;}
.footer-brand .logo-mark{background:rgba(255,255,255,.12);}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:320px;}
.footer-col a{
  display:block;
  font-size:14px;
  color:rgba(255,255,255,.78);
  padding:5px 0;
}
.footer-col a:hover{color:var(--accent-500);}
.footer-col .fc-text{font-size:14px;color:rgba(255,255,255,.66);margin:0 0 6px;}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  padding-top:22px;
  font-size:13px;
  color:rgba(255,255,255,.55);
}

/* ============ 移动端底部 CTA ============ */
.mobile-cta{
  display:none;
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:70;
  height:56px;
  background:var(--accent-500);
  color:#fff;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-size:15px;
  font-weight:500;
  padding-bottom:env(safe-area-inset-bottom);
  transition:background var(--t) var(--ease);
}
.mobile-cta:hover{background:var(--accent-600);color:#fff;}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 32px;}
  .card-lg{grid-column:span 6;}
  .card-sm{grid-column:span 6;}
}
@media (max-width:1023px){
  .section{padding:80px 0;}
  .container{padding:0 24px;}
  .nav-toggle{display:inline-flex;}
  .nav-links{
    position:fixed;
    top:76px;left:0;right:0;
    background:var(--bg);
    border-bottom:1px solid var(--line);
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:12px 24px 24px;
    margin-left:0;
    transform:translateY(-12px);
    opacity:0;
    pointer-events:none;
    transition:opacity var(--t) var(--ease),transform var(--t) var(--ease);
    box-shadow:0 18px 30px -22px rgba(11,35,29,.4);
  }
  .nav-links.is-open{opacity:1;transform:translateY(0);pointer-events:auto;}
  .nav-link{padding:14px 4px;font-size:16px;border-bottom:1px solid var(--line);}
  .nav-link::after{display:none;}
  .nav-link[aria-current="page"]{color:var(--accent-500);}
  .nav-actions .btn-ghost{display:none;}
  .cat-hero-copy,.cat-hero-media{grid-column:span 12;}
  .cat-hero-media img{height:300px;}
  .float-card{left:16px;bottom:-20px;}
  .card-lg,.card-sm{grid-column:span 12;}
  .card-lg .card-media img{height:260px;}
  .check-item{grid-column:span 6;}
  .trust-col,.form-card{grid-column:span 12;}
  .cta-band{grid-template-columns:1fr;padding:40px;}
  .cta-band .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  h1{font-size:clamp(28px,7vw,34px);}
  h2{font-size:clamp(22px,5.4vw,28px);}
  .section{padding:56px 0;}
  .section-tight{padding:48px 0;}
  .container{padding:0 20px;}
  .cat-hero{padding:20px 0 56px;}
  .cat-hero-media img{height:220px;}
  .float-card{position:static;margin-top:16px;left:auto;bottom:auto;}
  .steps{grid-template-columns:1fr;gap:16px;}
  .steps::before{display:none;}
  .step-dot{border-color:var(--sand-100);}
  .cross-links{grid-template-columns:1fr;}
  .check-item{grid-column:span 12;}
  .card-grid{gap:16px;}
  .mobile-cta{display:flex;}
  .site-footer{padding-bottom:80px;margin-top:56px;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .footer-bottom{flex-direction:column;}
  .form-card{padding:24px;}
  .cta-band{padding:32px 24px;}
}
@media (max-width:419px){
  .container{padding:0 16px;}
  .logo{font-size:17px;}
  .logo-mark{width:32px;height:32px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .card:hover,.step:hover,.cross-link:hover,.check-item:hover{transform:none;}
}