/* roulang page: index */
:root{
  --c-primary:#14545B;
  --c-primary-d:#0B3238;
  --c-primary-l:#A8C7C4;
  --c-accent:#C8763C;
  --c-accent-l:#F3E3D6;
  --bg:#F5F4F0;
  --card:#FFFFFF;
  --bg-alt:#EDEAE4;
  --line:#E3E1DA;
  --text:#1A1F20;
  --muted:#6B7574;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,50,56,.04), 0 8px 24px -12px rgba(11,50,56,.12);
  --sh-2:0 2px 4px rgba(11,50,56,.06), 0 16px 36px -16px rgba(11,50,56,.20);
  --ring:0 0 0 3px rgba(20,84,91,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::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:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color 160ms var(--ease);}
a:focus-visible{outline:none;box-shadow:var(--ring);border-radius:4px;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;}
.container-x{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}

/* ---------- 顶部工具条 ---------- */
.topbar{background:var(--c-primary-d);color:#C9D9D7;font-size:12.5px;letter-spacing:.06em;}
.topbar-inner{height:36px;display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar-links{display:flex;gap:20px;}
.topbar-links a{color:#C9D9D7;}
.topbar-links a:hover{color:#FFFFFF;}
@media (max-width:991.98px){.topbar{display:none;}}

/* ---------- 主导航 ---------- */
.mainnav{
  position:sticky;top:0;z-index:1035;
  background:#FFFFFF;
  border-bottom:1px solid var(--line);
  transition:box-shadow 200ms var(--ease),background 200ms var(--ease);
}
.mainnav.is-stuck{
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  box-shadow:var(--sh-1);
}
.nav-inner{height:76px;display:flex;align-items:center;gap:18px;transition:height 200ms var(--ease);}
.mainnav.is-stuck .nav-inner{height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--c-primary-d);font-family:var(--font-serif);font-weight:700;font-size:17px;letter-spacing:.01em;white-space:nowrap;}
.brand:hover{color:var(--c-primary);}
.brand-mark{
  width:36px;height:36px;flex:0 0 auto;border-radius:10px;
  background:var(--c-primary);color:#F2F7F6;
  display:grid;place-items:center;font-size:17px;font-weight:700;
  font-family:var(--font-serif);line-height:1;
}
.nav-links{display:flex;align-items:center;gap:2px;flex:0 0 auto;}
.nav-links a{
  display:block;padding:9px 12px;border-radius:var(--r-pill);
  font-size:15px;color:#33403F;white-space:nowrap;
  transition:background 160ms var(--ease),color 160ms var(--ease);
}
.nav-links a:hover{background:var(--bg-alt);color:var(--c-primary);}
.nav-links a.active{background:var(--c-accent-l);color:#8B4A1C;font-weight:600;}
.nav-links a.active:hover{background:var(--c-accent-l);color:#8B4A1C;}

/* ---------- 搜索（导航视觉中心） ---------- */
.search-wrap{position:relative;flex:1 1 auto;max-width:480px;margin:0 auto;min-width:0;}
.search-form{position:relative;display:flex;align-items:center;}
.search-input{
  width:100%;height:44px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:var(--bg);
  padding:0 20px 0 46px;font-size:14.5px;color:var(--text);
  font-family:inherit;
  transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease),background 180ms var(--ease);
}
.search-input::placeholder{color:var(--muted);}
.search-input:hover{border-color:var(--c-primary-l);}
.search-input:focus{outline:none;background:#FFFFFF;border-color:var(--c-primary);box-shadow:var(--ring);}
.search-icon{position:absolute;left:16px;top:50%;transform:translateY(-50%);width:19px;height:19px;color:var(--muted);pointer-events:none;}
.search-panel{
  position:absolute;left:0;right:0;top:calc(100% + 10px);
  background:#FFFFFF;border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-2);padding:16px;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity 180ms var(--ease),transform 180ms var(--ease),visibility 180ms;
  z-index:20;
}
.search-wrap:focus-within .search-panel{opacity:1;visibility:visible;transform:translateY(0);}
.search-panel .panel-label{display:block;font-size:12px;letter-spacing:.1em;color:var(--muted);margin-bottom:10px;}
.chips{display:flex;flex-wrap:wrap;gap:8px;}
.chip{
  display:inline-flex;align-items:center;height:30px;padding:0 13px;
  border-radius:var(--r-pill);background:var(--bg);border:1px solid var(--line);
  font-size:13px;color:#3A4746;transition:all 160ms var(--ease);
}
.chip:hover{background:var(--c-accent-l);border-color:var(--c-accent-l);color:#8B4A1C;}
.nav-cta{flex:0 0 auto;}
.burger{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:#FFFFFF;
  border-radius:12px;align-items:center;justify-content:center;cursor:pointer;
  transition:border-color 160ms var(--ease),background 160ms var(--ease);
}
.burger:hover{border-color:var(--c-primary-l);background:var(--bg);}
.burger span{display:block;width:18px;height:2px;background:var(--c-primary-d);border-radius:2px;position:relative;}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-primary-d);border-radius:2px;}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}

/* ---------- 移动抽屉 ---------- */
.scrim{
  position:fixed;inset:0;background:rgba(11,50,56,.45);z-index:1190;
  opacity:0;visibility:hidden;transition:opacity 220ms var(--ease),visibility 220ms;
}
.scrim.show{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(370px,88vw);
  background:#FFFFFF;z-index:1200;padding:22px 20px 32px;overflow-y:auto;
  transform:translateX(100%);transition:transform 220ms var(--ease);
  box-shadow:-20px 0 50px -30px rgba(11,50,56,.4);
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-close{
  width:44px;height:44px;border:1px solid var(--line);background:#FFFFFF;border-radius:12px;
  cursor:pointer;display:grid;place-items:center;color:var(--c-primary-d);font-size:20px;line-height:1;
}
.drawer-close:hover{background:var(--bg);}
.drawer .search-wrap{max-width:none;margin:0 0 20px;}
.drawer .search-panel{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;margin-top:10px;display:none;}
.drawer .search-wrap:focus-within .search-panel{display:block;}
.drawer-nav{display:grid;gap:4px;margin-bottom:22px;}
.drawer-nav a{
  display:block;padding:13px 14px;border-radius:var(--r-sm);
  color:#2C3837;font-size:15.5px;border:1px solid transparent;
}
.drawer-nav a:hover{background:var(--bg);border-color:var(--line);}
.drawer-nav a.active{background:var(--c-accent-l);color:#8B4A1C;font-weight:600;border-color:transparent;}
@media (max-width:991.98px){
  .nav-links,.search-wrap.nav-search,.nav-cta{display:none;}
  .burger{display:flex;}
  .nav-inner{height:66px;gap:12px;}
  .brand{font-size:16px;}
}
@media (max-width:575.98px){
  .container-x{padding:0 20px;}
  .brand{font-size:15px;}
  .brand-mark{width:32px;height:32px;border-radius:9px;font-size:15px;}
}

/* ---------- 按钮 ---------- */
.u-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:background 160ms var(--ease),color 160ms var(--ease),transform 160ms var(--ease),box-shadow 160ms var(--ease),border-color 160ms var(--ease);
}
.u-btn:focus-visible{outline:none;box-shadow:var(--ring);}
.u-btn-solid{background:var(--c-primary);color:#F2F7F6;}
.u-btn-solid:hover{background:#0F434A;color:#FFFFFF;transform:translateY(-1px);box-shadow:var(--sh-2);}
.u-btn-solid:active{transform:translateY(0);box-shadow:none;}
.u-btn-line{background:#FFFFFF;color:var(--c-primary);border-color:var(--line);}
.u-btn-line:hover{background:var(--c-accent-l);border-color:var(--c-primary);color:var(--c-primary);}
.u-btn-line:active{transform:translateY(1px);}
.u-btn[disabled]{opacity:.5;pointer-events:none;}
.u-btn-sm{height:42px;padding:0 20px;font-size:14px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;
  color:var(--c-primary);background-image:linear-gradient(var(--c-accent),var(--c-accent));
  background-size:0 2px;background-position:0 100%;background-repeat:no-repeat;
  padding-bottom:2px;transition:background-size 200ms var(--ease),color 160ms var(--ease);
}
.link-arrow:hover{background-size:100% 2px;color:var(--c-primary);}
.link-arrow svg{transition:transform 160ms var(--ease);}
.link-arrow:hover svg{transform:translateX(3px);}

/* ---------- 首屏 ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:70px 0 84px;
  background:linear-gradient(180deg,#F0F1EC 0%,var(--bg) 100%);
}
.hero::before{
  content:"";position:absolute;right:-160px;top:-160px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(168,199,196,.42),rgba(168,199,196,0) 70%);
  pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.eyebrow{
  display:inline-block;font-size:12.5px;font-weight:600;letter-spacing:.14em;
  color:var(--c-accent);margin-bottom:16px;
}
.hero h1{
  font-family:var(--font-serif);font-weight:700;
  font-size:clamp(30px,4.2vw,52px);line-height:1.15;letter-spacing:-.02em;
  color:var(--c-primary-d);margin-bottom:18px;
}
.hero-sub{font-size:clamp(15.5px,1.4vw,17.5px);line-height:1.8;color:#41504F;max-width:620px;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:20px;}
.hero-points{
  display:flex;flex-wrap:wrap;gap:12px 30px;
  margin-top:34px;padding-top:24px;border-top:1px solid var(--line);
}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:13.5px;letter-spacing:.03em;color:var(--muted);}
.hero-points svg{flex:0 0 auto;color:var(--c-accent);}
.hero-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-1);max-height:470px;background:var(--bg-alt);
}
.hero-media img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,50,56,.12),rgba(11,50,56,.36));
}
.hero-media-tag{
  position:absolute;left:20px;bottom:20px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 16px;
  border-radius:var(--r-pill);background:rgba(255,255,255,.92);color:var(--c-primary-d);
  font-size:13px;font-weight:600;letter-spacing:.03em;
}
@media (max-width:991.98px){
  .hero{padding:52px 0 60px;}
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .hero-media{order:2;max-height:none;}
  .hero-media img{aspect-ratio:16/10;}
}

/* ---------- 通用区块 ---------- */
.section{padding:96px 0;}
.section-alt{background:var(--bg-alt);}
.section-line{border-top:1px solid var(--line);}
.section-head{max-width:740px;margin-bottom:52px;}
.section-title{
  font-family:var(--font-serif);font-weight:700;
  font-size:clamp(22px,2.4vw,32px);line-height:1.32;letter-spacing:-.01em;
  color:var(--c-primary-d);margin-bottom:14px;
}
.section-desc{font-size:15.5px;color:var(--muted);max-width:660px;}
@media (max-width:991.98px){.section{padding:72px 0;}.section-head{margin-bottom:40px;}}
@media (max-width:575.98px){.section{padding:56px 0;}}

/* ---------- 痛点提问 ---------- */
.pain-layout{display:grid;grid-template-columns:320px 1fr;gap:56px;align-items:start;}
.pain-aside{position:sticky;top:120px;}
.pain-aside .section-title{margin-bottom:14px;}
.pain-list{border-top:1px solid var(--line);}
.pain-item{display:flex;gap:22px;padding:26px 0;border-bottom:1px solid var(--line);transition:padding-left 180ms var(--ease);}
.pain-item:hover{padding-left:8px;}
.pain-num{
  flex:0 0 auto;width:40px;font-family:var(--font-serif);font-weight:700;
  font-size:20px;color:var(--c-accent);line-height:1.5;
}
.pain-body h3{font-size:17px;font-weight:600;line-height:1.6;margin-bottom:6px;color:#22302F;}
.pain-body p{font-size:14.5px;color:var(--muted);margin-bottom:10px;}
@media (max-width:991.98px){
  .pain-layout{grid-template-columns:1fr;gap:28px;}
  .pain-aside{position:static;}
}

/* ---------- 方案 Bento ---------- */
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:24px;}
.bento-item{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-md);box-shadow:var(--sh-1);overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform 180ms var(--ease),box-shadow 180ms var(--ease);
}
.bento-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.bento-lg{grid-column:span 3;}
.bento-sm{grid-column:span 2;}
.bento-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--bg-alt);}
.bento-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 220ms var(--ease);}
.bento-item:hover .bento-thumb img{transform:scale(1.03);}
.bento-body{padding:24px 24px 26px;display:flex;flex-direction:column;gap:10px;flex:1;}
.bento-idx{font-family:var(--font-serif);font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--c-accent);}
.bento-body h3{font-size:18.5px;font-weight:700;line-height:1.5;color:var(--c-primary-d);}
.bento-body p{font-size:14.5px;color:var(--muted);margin-bottom:4px;}
.bento-icon{
  width:42px;height:42px;border-radius:12px;background:rgba(168,199,196,.35);
  display:grid;place-items:center;color:var(--c-primary);
}
@media (max-width:1199.98px){
  .bento-lg{grid-column:span 3;}
  .bento-sm{grid-column:span 3;}
}
@media (max-width:767.98px){
  .bento{grid-template-columns:1fr;gap:18px;}
  .bento-lg,.bento-sm{grid-column:span 1;}
}

/* ---------- 数据指标 ---------- */
.stats-band{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:64px 0;}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;}
.stat-num{
  font-family:var(--font-serif);font-weight:700;font-variant-numeric:tabular-nums;
  font-size:clamp(34px,4vw,52px);line-height:1.1;color:var(--c-accent);
  letter-spacing:-.01em;
}
.stat-label{font-size:14px;color:var(--muted);margin-top:10px;letter-spacing:.03em;}
@media (max-width:767.98px){
  .stats{grid-template-columns:repeat(2,1fr);gap:32px 20px;}
  .stats-band{padding:48px 0;}
}

/* ---------- 资讯卡片 ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);overflow:hidden;height:100%;
  display:flex;flex-direction:column;
  transition:transform 180ms var(--ease),box-shadow 180ms var(--ease);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.post-thumb{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--bg-alt);}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 220ms var(--ease);}
.post-card:hover .post-thumb img{transform:scale(1.03);}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.tag{
  display:inline-flex;align-items:center;align-self:flex-start;
  height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:rgba(168,199,196,.38);color:var(--c-primary);
  font-size:12px;letter-spacing:.04em;
}
.post-title{font-size:17px;font-weight:600;line-height:1.55;}
.post-title a{
  color:var(--c-primary-d);
  background-image:linear-gradient(var(--c-accent),var(--c-accent));
  background-size:0 2px;background-position:0 100%;background-repeat:no-repeat;
  transition:background-size 200ms var(--ease),color 160ms var(--ease);
}
.post-title a:hover{color:var(--c-primary);background-size:100% 2px;}
.post-excerpt{
  font-size:14px;color:var(--muted);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-time{font-size:13px;color:var(--muted);letter-spacing:.04em;margin-top:auto;padding-top:6px;}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:48px;flex-wrap:wrap;}
.section-head-row .section-head{margin-bottom:0;}
.empty-state{
  grid-column:1/-1;background:var(--card);border:1px dashed var(--line);border-radius:var(--r-md);
  padding:56px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px;
}
.empty-state svg{color:var(--c-primary-l);}
.empty-state p{font-size:15px;color:var(--muted);}
@media (max-width:1199.98px){.post-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:767.98px){.post-grid{grid-template-columns:1fr;gap:18px;}}

/* ---------- 表单 ---------- */
.form-layout{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start;}
.form-panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:34px 32px 36px;
}
.form-panel h3{font-family:var(--font-serif);font-size:20px;font-weight:700;color:var(--c-primary-d);margin-bottom:22px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13.5px;font-weight:600;color:#2C3837;margin-bottom:8px;letter-spacing:.02em;}
.field input,.field select,.field textarea{
  width:100%;height:44px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:#FFFFFF;
  padding:0 14px;font-size:14.5px;font-family:inherit;color:var(--text);
  transition:border-color 160ms var(--ease),box-shadow 160ms var(--ease);
}
.field textarea{height:auto;min-height:110px;padding:12px 14px;line-height:1.75;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--muted);}
.field input:hover,.field select:hover,.field textarea:hover{border-color:var(--c-primary-l);}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--c-primary);box-shadow:var(--ring);}
.field.has-error input,.field.has-error textarea,.field.has-error select{border-color:#B4472F;}
.field-note{font-size:13px;color:#B4472F;margin-top:6px;display:none;}
.field.has-error .field-note{display:block;}
.form-ok{
  display:none;align-items:center;gap:8px;margin-top:14px;
  font-size:13.5px;color:var(--c-primary);background:rgba(168,199,196,.28);
  border-radius:var(--r-sm);padding:10px 14px;
}
.form-ok.show{display:flex;}
.form-side h2{margin-bottom:16px;}
.form-side-list{display:grid;gap:14px;margin-top:26px;}
.form-side-list li{display:flex;gap:12px;font-size:14.5px;color:#3D4A49;}
.form-side-list span.num{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;background:var(--c-accent-l);color:#8B4A1C;
  display:grid;place-items:center;font-size:12.5px;font-weight:700;margin-top:4px;
}
@media (max-width:991.98px){
  .form-layout{grid-template-columns:1fr;gap:34px;}
  .form-panel{padding:26px 22px 30px;}
}

/* ---------- 隐私说明 ---------- */
.privacy{
  margin-top:22px;font-size:13px;color:var(--muted);line-height:1.8;
  display:flex;gap:10px;align-items:flex-start;
}
.privacy input[type="checkbox"]{
  width:16px;height:16px;margin-top:5px;flex:0 0 auto;accent-color:var(--c-primary);cursor:pointer;
}
.privacy a{color:var(--muted);text-decoration:underline;text-underline-offset:3px;}
.privacy a:hover{color:var(--c-primary);}

/* ---------- FAQ ---------- */
.faq-list{max-width:880px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-q{
  width:100%;background:none;border:0;padding:24px 0;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  text-align:left;font-size:17px;font-weight:600;color:#22302F;cursor:pointer;
  transition:color 160ms var(--ease);
}
.faq-q:hover{color:var(--c-primary);}
.faq-q:focus-visible{outline:none;box-shadow:var(--ring);border-radius:6px;}
.faq-icon{position:relative;width:14px;height:14px;flex:0 0 auto;transition:transform 160ms var(--ease);}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--c-accent);border-radius:2px;}
.faq-icon::before{left:0;top:6px;width:14px;height:2px;}
.faq-icon::after{top:0;left:6px;width:2px;height:14px;}
.faq-item.open .faq-icon{transform:rotate(45deg);}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows 160ms var(--ease);}
.faq-item.open .faq-a{grid-template-rows:1fr;}
.faq-a > div{overflow:hidden;}
.faq-a p{
  font-size:14.8px;color:#41504F;background:var(--bg-alt);
  border-radius:var(--r-sm);padding:20px;margin-top:-6px;margin-bottom:22px;
}

/* ---------- 结尾 CTA ---------- */
.cta-band{
  background:var(--c-primary);color:#EAF1F0;
  padding:76px 0;
}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:40px;
  flex-wrap:wrap;min-height:200px;
}
.cta-inner h2{
  font-family:var(--font-serif);font-size:clamp(22px,2.6vw,34px);font-weight:700;
  color:#FFFFFF;line-height:1.35;margin-bottom:12px;max-width:640px;
}
.cta-inner p{font-size:15px;color:#BBD0CE;max-width:560px;}
.cta-actions{display:flex;align-items:center;gap:22px;flex-wrap:wrap;}
.u-btn-light{background:#F5F4F0;color:var(--c-primary-d);}
.u-btn-light:hover{background:#FFFFFF;color:var(--c-primary-d);transform:translateY(-1px);box-shadow:0 14px 30px -14px rgba(0,0,0,.4);}
.cta-link{color:#EAF1F0;font-size:14.5px;font-weight:600;background-image:linear-gradient(var(--c-accent),var(--c-accent));background-size:0 2px;background-position:0 100%;background-repeat:no-repeat;padding-bottom:3px;transition:background-size 200ms var(--ease);}
.cta-link:hover{color:#FFFFFF;background-size:100% 2px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-primary-d);color:#C4D3D1;font-size:14px;padding-top:72px;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:44px;padding-bottom:52px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);color:#FFFFFF;}
.footer-brand span.bname{color:#FFFFFF;font-family:var(--font-serif);font-weight:700;font-size:16.5px;}
.footer-about{font-size:14px;line-height:1.9;color:#A9BDBA;max-width:340px;}
.footer-title{color:#FFFFFF;font-size:14px;font-weight:600;letter-spacing:.06em;margin-bottom:18px;}
.footer-links{display:grid;gap:12px;}
.footer-links a{color:#C4D3D1;font-size:14px;}
.footer-links a:hover{color:#FFFFFF;}
.footer-contact{display:grid;gap:12px;}
.footer-contact li{font-size:14px;line-height:1.7;color:#A9BDBA;}
.footer-contact li b{color:#E3ECEB;font-weight:600;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:22px 0;font-size:13px;color:#93A7A5;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
@media (max-width:991.98px){
  .site-footer{padding-top:56px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;padding-bottom:38px;}
}
@media (max-width:575.98px){
  .footer-grid{grid-template-columns:1fr;gap:28px;}
}

/* ---------- 悬浮咨询按钮 ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:1040;
  display:inline-flex;align-items:center;gap:9px;
  height:52px;padding:0 22px;border:0;border-radius:var(--r-pill);
  background:var(--c-primary-d);color:#F2F7F6;font-size:14.5px;font-weight:600;
  box-shadow:0 14px 34px -14px rgba(11,50,56,.6);cursor:pointer;
  transition:transform 180ms var(--ease),background 180ms var(--ease),box-shadow 180ms var(--ease);
}
.float-cta:hover{background:var(--c-primary);transform:translateY(-2px);box-shadow:0 20px 40px -16px rgba(11,50,56,.65);}
.float-cta:focus-visible{outline:none;box-shadow:var(--ring);}
.float-cta:active{transform:translateY(0);}
@media (max-width:575.98px){
  .float-cta{right:16px;bottom:16px;height:48px;padding:0 18px;font-size:14px;}
}

/* ---------- 弹层 ---------- */
.modal-backdrop.show{opacity:.5;}
.modal-content{border:none;border-radius:var(--r-lg);box-shadow:0 30px 70px -30px rgba(11,50,56,.45);}
.modal-dialog{max-width:520px;}
.modal-header{border-bottom:1px solid var(--line);padding:20px 24px;}
.modal-title{font-family:var(--font-serif);font-size:19px;font-weight:700;color:var(--c-primary-d);}
.modal-body{padding:22px 24px 8px;}
.modal-footer{border-top:1px solid var(--line);padding:16px 24px;}
.modal .btn-close:focus{box-shadow:var(--ring);}
@media (max-width:575.98px){
  .modal-dialog{margin:0;max-width:100%;}
  .modal-content{border-radius:20px 20px 0 0;}
  .modal-dialog-centered{min-height:100%;align-items:flex-end;}
}

/* ---------- 动效与无障碍 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 480ms var(--ease),transform 480ms var(--ease);}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category1 */
/* ================= 设计变量 ================= */
:root{
  --c-primary:#14545B;
  --c-primary-dark:#0B3238;
  --c-primary-mid:#0F434A;
  --c-primary-soft:#A8C7C4;
  --c-accent:#C8763C;
  --c-accent-soft:#F3E3D6;
  --c-bg:#F5F4F0;
  --c-surface:#FFFFFF;
  --c-bg-alt:#EDEAE4;
  --c-line:#E3E1DA;
  --c-ink:#1A1F20;
  --c-muted:#6B7574;
  --c-warn:#B4472F;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,50,56,.04), 0 8px 24px -12px rgba(11,50,56,.12);
  --sh-2:0 2px 4px rgba(11,50,56,.06), 0 16px 36px -16px rgba(11,50,56,.20);
  --ring:0 0 0 3px rgba(20,84,91,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
/* ================= 基础 reset ================= */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease),background-color .18s var(--ease),border-color .18s var(--ease)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-family:var(--serif);font-weight:700;letter-spacing:-.02em;line-height:1.25}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
::selection{background:rgba(20,84,91,.16)}

/* ================= 容器与板块 ================= */
.container-x{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-alt{background:var(--c-bg-alt);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.section-tight{padding:72px 0}
.sec-head{max-width:720px;margin-bottom:40px}
.sec-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.14em;
  color:var(--c-accent);text-transform:uppercase;margin-bottom:14px;
}
.sec-eyebrow::before{content:"";width:22px;height:2px;background:var(--c-accent);display:block}
.sec-title{font-size:clamp(22px,2.4vw,32px);color:var(--c-ink)}
.sec-desc{margin-top:14px;font-size:15px;color:var(--c-muted);line-height:1.9;max-width:640px}

/* ================= 按钮 ================= */
.u-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-family:var(--sans);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .18s var(--ease),background-color .18s var(--ease),box-shadow .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.u-btn-solid{background:var(--c-primary);color:#F2F7F6;box-shadow:var(--sh-1)}
.u-btn-solid:hover{background:var(--c-primary-mid);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.u-btn-solid:active{transform:translateY(0);box-shadow:var(--sh-1)}
.u-btn-ghost{background:var(--c-surface);border-color:var(--c-line);color:var(--c-primary)}
.u-btn-ghost:hover{background:var(--c-accent-soft);border-color:var(--c-primary);transform:translateY(-1px);box-shadow:var(--sh-1)}
.u-btn-ghost:active{transform:translateY(0)}
.u-btn-light{background:#F2F7F6;color:var(--c-primary-dark)}
.u-btn-light:hover{background:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.u-btn-sm{height:42px;padding:0 20px;font-size:14px}
.u-btn[disabled],.u-btn.is-disabled{opacity:.5;pointer-events:none}
.u-btn:focus-visible{outline:none;box-shadow:var(--ring)}
.text-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);
  font-size:14px;font-weight:600;padding-bottom:2px;
  border-bottom:2px solid transparent;transition:border-color .16s var(--ease),color .16s var(--ease);
}
.text-link:hover{border-bottom-color:var(--c-accent);color:var(--c-primary-mid)}
.text-link svg{width:16px;height:16px;stroke-width:1.5}

/* ================= 顶部工具条 ================= */
.topbar{background:var(--c-primary-dark);color:#D6E3E2;font-size:12.5px;letter-spacing:.06em}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;height:36px;gap:16px}
.topbar-links{display:flex;align-items:center;gap:20px}
.topbar-links a{color:#D6E3E2;border-bottom:1px solid transparent;padding-bottom:1px}
.topbar-links a:hover{color:#fff;border-bottom-color:var(--c-accent)}

/* ================= 主导航 ================= */
.site-header{position:sticky;top:0;z-index:1030}
.mainnav{
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.mainnav.is-shrink{box-shadow:0 8px 24px -18px rgba(11,50,56,.32)}
.nav-inner{display:flex;align-items:center;gap:22px;height:76px;transition:height .2s var(--ease)}
.mainnav.is-shrink .nav-inner{height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:12px;background:var(--c-primary);color:#EAF2F1;
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--serif);font-size:18px;font-weight:700;flex:0 0 auto;
}
.brand-text{font-family:var(--serif);font-size:17px;font-weight:700;color:var(--c-ink);letter-spacing:-.01em}
.brand:hover .brand-text{color:var(--c-primary)}
.nav-links{display:flex;align-items:center;gap:22px;flex:0 0 auto}
.nav-links a{
  position:relative;display:inline-block;font-size:15px;color:var(--c-ink);padding:6px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--c-accent);
  transform:scaleX(0);transform-origin:left;transition:transform .18s var(--ease);
}
.nav-links a:hover{color:var(--c-primary)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--c-primary);font-weight:600}
.nav-links a.active::after{transform:scaleX(1)}

/* 搜索为主视觉中心 */
.search-wrap{position:relative;flex:1 1 auto;max-width:520px;min-width:220px;margin-left:auto}
.search-form{position:relative;display:flex;align-items:center}
.search-input{
  width:100%;height:44px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:#F3F3F0;
  padding:0 18px 0 44px;font-size:14px;color:var(--c-ink);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease);
}
.search-input::placeholder{color:var(--c-muted);font-size:13.5px}
.search-input:hover{border-color:var(--c-primary-soft)}
.search-input:focus{outline:none;background:#fff;border-color:var(--c-primary);box-shadow:var(--ring)}
.search-icon{position:absolute;left:16px;top:50%;transform:translateY(-50%);width:18px;height:18px;color:var(--c-muted);pointer-events:none}
.search-panel{
  position:absolute;top:calc(100% + 10px);left:0;right:0;background:var(--c-surface);
  border-radius:var(--r-md);box-shadow:var(--sh-2);border:1px solid var(--c-line);
  padding:16px;opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .18s var(--ease),transform .18s var(--ease),visibility .18s;
  z-index:5;
}
.search-wrap:focus-within .search-panel{opacity:1;visibility:visible;transform:translateY(0)}
.panel-label{display:block;font-size:12px;letter-spacing:.08em;color:var(--c-muted);margin-bottom:8px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:rgba(20,84,91,.08);color:var(--c-primary);font-size:12px;white-space:nowrap;
}
.chip:hover{background:var(--c-accent-soft);color:var(--c-primary-dark)}
.nav-cta{flex:0 0 auto}
.burger{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);background:var(--c-surface);
  border-radius:12px;align-items:center;justify-content:center;flex:0 0 auto;
}
.burger span{display:block;width:18px;height:2px;background:var(--c-primary);position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-primary)}
.burger span::before{top:-6px}
.burger span::after{top:6px}
.burger:hover{background:var(--c-accent-soft);border-color:var(--c-primary)}

/* 移动端抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,50,56,.44);z-index:1050;
  opacity:0;transition:opacity .22s var(--ease);
}
.drawer-mask.show{opacity:1}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,360px);background:var(--c-surface);
  z-index:1051;transform:translateX(102%);transition:transform .22s var(--ease);
  padding:22px 20px 28px;display:flex;flex-direction:column;gap:20px;overflow-y:auto;
  box-shadow:var(--sh-2);
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-close{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--c-line);background:#fff;
  display:inline-flex;align-items:center;justify-content:center;color:var(--c-primary);
}
.drawer-close:hover{background:var(--c-accent-soft)}
.drawer-search .search-input{padding-left:44px}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{
  padding:14px 2px;font-size:15.5px;border-bottom:1px solid var(--c-line);color:var(--c-ink);
}
.drawer-nav a.active{color:var(--c-primary);font-weight:600}
.drawer-nav a:hover{color:var(--c-primary)}
.drawer-cta{width:100%}

/* ================= 内页 Hero ================= */
.page-hero{
  position:relative;color:#EDF4F3;overflow:hidden;
  background-image:linear-gradient(105deg, rgba(11,50,56,.94) 0%, rgba(20,84,91,.86) 52%, rgba(11,50,56,.72) 100%), url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(70% 120% at 88% 12%, rgba(200,118,60,.22), transparent 62%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;padding:76px 0 68px;max-width:920px}
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:10px;font-size:13px;letter-spacing:.04em;color:#B9CDCB;margin-bottom:22px}
.crumb a{color:#B9CDCB;border-bottom:1px solid transparent}
.crumb a:hover{color:#fff;border-bottom-color:var(--c-accent)}
.crumb-sep{opacity:.55}
.crumb-cur{color:#F0D6C2}
.page-hero-title{font-size:clamp(26px,3.4vw,42px);line-height:1.22;color:#FFFFFF;letter-spacing:-.02em}
.page-lead{margin-top:20px;font-size:16px;line-height:1.95;color:#CFE0DE;max-width:760px}
.hero-meta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-meta span{
  display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 16px;
  border-radius:var(--r-pill);border:1px solid rgba(255,255,255,.24);
  background:rgba(255,255,255,.08);font-size:13px;color:#DCEAE8;
}
.hero-meta svg{width:16px;height:16px;stroke-width:1.5;color:var(--c-accent-soft)}

/* ================= 清单式主栏 ================= */
.guide-list{display:flex;flex-direction:column;gap:16px;counter-reset:g}
.guide-item{
  display:flex;align-items:flex-start;gap:24px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:26px 28px;box-shadow:var(--sh-1);scroll-margin-top:120px;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.guide-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--c-primary-soft)}
.g-num{
  flex:0 0 auto;font-family:var(--serif);font-size:30px;font-weight:700;line-height:1;
  color:var(--c-accent);font-variant-numeric:tabular-nums;padding-top:6px;min-width:52px;
}
.g-body{flex:1 1 auto;min-width:0}
.g-title{font-size:20px;font-family:var(--sans);font-weight:600;letter-spacing:0;color:var(--c-ink)}
.g-desc{margin-top:10px;font-size:15px;line-height:1.9;color:var(--c-muted)}
.g-link{
  flex:0 0 auto;width:44px;height:44px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:#fff;color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;
  transition:transform .18s var(--ease),background-color .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.g-link svg{width:20px;height:20px;stroke-width:1.5}
.g-link:hover{background:var(--c-primary);border-color:var(--c-primary);color:#fff;transform:translateX(3px)}

/* ================= 粘性索引栏 ================= */
.aside-sticky{position:sticky;top:112px;display:flex;flex-direction:column;gap:20px}
.idx-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:24px 22px;box-shadow:var(--sh-1);
}
.idx-title{font-size:14px;font-weight:600;letter-spacing:.1em;color:var(--c-muted);margin-bottom:14px;font-family:var(--sans)}
.idx-list{display:flex;flex-direction:column}
.idx-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 12px;border-radius:var(--r-sm);font-size:14.5px;color:var(--c-ink);
  border-left:2px solid transparent;
}
.idx-list a:hover{background:var(--c-bg-alt);color:var(--c-primary);border-left-color:var(--c-accent)}
.idx-list a span.n{font-family:var(--serif);font-size:12px;color:var(--c-accent);font-variant-numeric:tabular-nums}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);
}
.side-img{width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--c-bg-alt)}
.side-body{padding:20px 22px 24px}
.side-body h3{font-size:17px;font-family:var(--sans);font-weight:600;color:var(--c-ink)}
.side-body p{margin-top:8px;font-size:14px;color:var(--c-muted);line-height:1.85}
.side-body .u-btn{margin-top:16px;width:100%}

/* ================= 场景卡 ================= */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.scene-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease);
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.scene-media{overflow:hidden;background:var(--c-bg-alt)}
.scene-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .22s var(--ease)}
.scene-card:hover .scene-media img{transform:scale(1.03)}
.scene-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:10px}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:rgba(20,84,91,.09);color:var(--c-primary);font-size:12px;font-weight:600;align-self:flex-start;
}
.scene-body h3{font-size:18px;font-family:var(--sans);font-weight:600;line-height:1.5}
.scene-body p{font-size:14.5px;color:var(--c-muted);line-height:1.85}

/* ================= 提示条 ================= */
.tip-strip{
  display:grid;grid-template-columns:repeat(3,1fr);gap:0;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);
}
.tip-item{padding:28px 26px;border-right:1px solid var(--c-line)}
.tip-item:last-child{border-right:0}
.tip-item .tip-i{
  width:44px;height:44px;border-radius:12px;background:var(--c-accent-soft);
  display:inline-flex;align-items:center;justify-content:center;color:var(--c-accent);margin-bottom:14px;
}
.tip-item .tip-i svg{width:22px;height:22px;stroke-width:1.5}
.tip-item h3{font-size:17px;font-family:var(--sans);font-weight:600}
.tip-item p{margin-top:8px;font-size:14.5px;color:var(--c-muted);line-height:1.85}

/* ================= FAQ ================= */
.faq-wrap{max-width:880px}
.accordion.faq-acc .accordion-item{
  background:transparent;border:0;border-bottom:1px solid var(--c-line);
}
.accordion.faq-acc .accordion-header{margin:0}
.accordion.faq-acc .accordion-button{
  background:transparent;border:0;box-shadow:none;padding:22px 4px;
  font-family:var(--sans);font-size:17px;font-weight:600;color:var(--c-ink);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.accordion.faq-acc .accordion-button:not(.collapsed){color:var(--c-primary)}
.accordion.faq-acc .accordion-button::after{
  content:"";flex:0 0 auto;width:22px;height:22px;margin-left:auto;
  background-image:none;border:1px solid var(--c-primary-soft);border-radius:6px;
  position:relative;transition:transform .16s var(--ease),border-color .16s var(--ease);
}
.accordion.faq-acc .accordion-button::before{
  content:"";position:absolute;right:9px;width:11px;height:11px;
  background:
    linear-gradient(var(--c-primary),var(--c-primary)) center/11px 1.5px no-repeat,
    linear-gradient(var(--c-primary),var(--c-primary)) center/1.5px 11px no-repeat;
  top:50%;transform:translateY(-50%) rotate(0deg);
  transition:transform .16s var(--ease);
}
.accordion.faq-acc .accordion-button{position:relative}
.accordion.faq-acc .accordion-button:not(.collapsed)::before{transform:translateY(-50%) rotate(45deg)}
.accordion.faq-acc .accordion-button:hover{color:var(--c-primary)}
.accordion.faq-acc .accordion-button:focus{box-shadow:none;outline:2px solid var(--c-primary);outline-offset:-2px}
.accordion.faq-acc .accordion-body{
  background:var(--c-bg-alt);border-radius:var(--r-md);padding:20px;
  font-size:15px;color:var(--c-muted);line-height:1.9;margin-bottom:16px;
}

/* ================= CTA 条 ================= */
.cta-band{
  position:relative;background:var(--c-primary-dark);color:#E7F0EF;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(60% 140% at 12% 0%, rgba(200,118,60,.24), transparent 58%),
             radial-gradient(50% 120% at 92% 100%, rgba(168,199,196,.18), transparent 60%);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:2;padding:104px 0;max-width:780px}
.cta-inner h2{font-size:clamp(24px,2.8vw,34px);color:#FFFFFF}
.cta-inner p{margin-top:18px;font-size:15.5px;line-height:1.95;color:#C6D8D6}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:22px;margin-top:32px}

/* ================= 表单与弹层 ================= */
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.field label{font-size:13.5px;font-weight:600;color:var(--c-ink)}
.field .ctrl{
  height:44px;border-radius:14px;border:1px solid var(--c-line);background:#fff;
  padding:0 14px;font-size:14.5px;width:100%;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.field textarea.ctrl{height:96px;padding:12px 14px;line-height:1.7;resize:vertical}
.field .ctrl:hover{border-color:var(--c-primary-soft)}
.field .ctrl:focus{outline:none;border-color:var(--c-primary);box-shadow:var(--ring)}
.field .ctrl::placeholder{color:var(--c-muted)}
.field.invalid .ctrl{border-color:var(--c-warn)}
.field .err{font-size:13px;color:var(--c-warn);display:none}
.field.invalid .err{display:block}
.consent{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--c-muted);margin:6px 0 18px}
.consent input{width:16px;height:16px;margin-top:4px;accent-color:var(--c-primary)}
.modal-content{
  border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-2);overflow:hidden;
}
.modal-header{border-bottom:1px solid var(--c-line);padding:20px 24px;align-items:center}
.modal-title{font-size:19px;font-family:var(--serif)}
.modal-body{padding:24px}
.modal-content .btn-close{
  width:36px;height:36px;border-radius:10px;background-size:12px;opacity:.7;
  border:1px solid var(--c-line);transition:background-color .18s var(--ease);
}
.modal-content .btn-close:hover{background-color:var(--c-accent-soft);opacity:1}
.form-note{font-size:13px;color:var(--c-muted);line-height:1.8}

/* ================= 页脚 ================= */
.site-footer{background:var(--c-primary-dark);color:#C9D9D7;padding:72px 0 0;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:rgba(255,255,255,.1);color:#EAF2F1}
.footer-brand .bname{font-family:var(--serif);font-size:17px;font-weight:700;color:#FFFFFF}
.footer-about{font-size:14px;line-height:1.9;color:#A9BFBD;max-width:340px}
.footer-title{font-family:var(--sans);font-size:14px;font-weight:600;color:#FFFFFF;letter-spacing:.06em;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{color:#C9D9D7;line-height:1.6}
.footer-links a:hover{color:#FFFFFF;border-bottom:1px solid var(--c-accent);align-self:flex-start}
.footer-contact{display:flex;flex-direction:column;gap:12px}
.footer-contact li{color:#A9BFBD;line-height:1.7}
.footer-contact b{color:#FFFFFF;font-weight:600}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0 26px;
  font-size:13px;color:#8FA8A6;
}

/* ================= 响应式 ================= */
@media (max-width:1199px){
  .aside-sticky{position:static}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:991px){
  .topbar{display:none}
  .nav-links,.nav-search,.nav-cta{display:none}
  .burger{display:inline-flex}
  .nav-inner{height:64px;gap:14px}
  .brand-text{font-size:15.5px}
  .section{padding:72px 0}
  .section-tight{padding:56px 0}
  .hero-inner{padding:56px 0 52px}
  .scene-grid{grid-template-columns:1fr 1fr}
  .tip-strip{grid-template-columns:1fr}
  .tip-item{border-right:0;border-bottom:1px solid var(--c-line)}
  .tip-item:last-child{border-bottom:0}
  .cta-inner{padding:80px 0}
}
@media (max-width:767px){
  .container-x{padding:0 20px}
  body{font-size:15.5px;line-height:1.8}
  .section{padding:56px 0}
  .page-hero-title{font-size:26px}
  .page-lead{font-size:15px}
  .guide-item{flex-wrap:wrap;gap:14px;padding:22px 20px}
  .g-num{min-width:auto;font-size:26px}
  .g-body{flex:1 1 100%;order:3}
  .g-link{order:2;margin-left:auto}
  .scene-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .accordion.faq-acc .accordion-button{font-size:15.5px;padding:18px 2px}
  .cta-actions{gap:14px}
  .cta-actions .u-btn{width:100%}
  .modal-dialog{margin:0;align-items:flex-end;min-height:100%}
  .modal-content{border-radius:var(--r-lg) var(--r-lg) 0 0}
}
@media (max-width:520px){
  .hero-meta span{width:100%}
  .idx-card{padding:20px 18px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
  .guide-item:hover,.scene-card:hover,.u-btn:hover{transform:none}
}

/* roulang page: article */
:root{
  --c-main:#14545B;
  --c-main-d:#0B3238;
  --c-main-t:#0F434A;
  --c-main-l:#A8C7C4;
  --c-accent:#C8763C;
  --c-accent-l:#F3E3D6;
  --bg:#F5F4F0;
  --panel:#FFFFFF;
  --bg-alt:#EDEAE4;
  --line:#E3E1DA;
  --text:#1A1F20;
  --muted:#6B7574;
  --warn:#B4472F;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,50,56,.04), 0 8px 24px -12px rgba(11,50,56,.12);
  --sh-2:0 2px 4px rgba(11,50,56,.06), 0 16px 36px -16px rgba(11,50,56,.20);
  --ring:0 0 0 3px rgba(20,84,91,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --f-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --f-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--f-sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-main);text-decoration:none;transition:color .16s var(--ease),border-color .16s var(--ease);}
a:hover{color:var(--c-main-t);}
button{font-family:inherit;}
h1,h2,h3,h4{font-family:var(--f-serif);color:var(--text);margin:0;font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
input,textarea,select{font-family:inherit;font-size:15px;color:var(--text);}
:focus-visible{outline:none;box-shadow:var(--ring);border-radius:var(--r-sm);}
.container-x{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
/* ---------- 顶部工具条 ---------- */
.topbar{
  background:var(--c-main-d);
  color:#E8EFEE;
  font-size:12.5px;
  letter-spacing:.06em;
  line-height:36px;
  min-height:36px;
}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar-links{display:flex;gap:20px;}
.topbar-links a{color:#CFE0DE;}
.topbar-links a:hover{color:#FFFFFF;text-decoration:underline;text-underline-offset:4px;}
/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:1040;}
.mainnav{
  background:rgba(245,244,240,.96);
  border-bottom:1px solid var(--line);
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.mainnav.shrink{background:rgba(245,244,240,.88);backdrop-filter:saturate(150%) blur(10px);border-bottom-color:#D8D5CC;}
.nav-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:76px;
  transition:height .2s var(--ease);
}
.mainnav.shrink .nav-inner{height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;
  display:grid;place-items:center;
  border-radius:11px;
  background:var(--c-main);
  color:#F2F7F6;
  font-family:var(--f-serif);
  font-size:19px;
  font-weight:700;
  box-shadow:var(--sh-1);
}
.brand-text{
  font-family:var(--f-serif);
  font-size:16.5px;
  font-weight:700;
  color:var(--c-main-d);
  letter-spacing:.01em;
  white-space:nowrap;
}
.brand:hover .brand-text{color:var(--c-main-t);}
.nav-links{display:flex;align-items:center;gap:16px;margin:0;}
.nav-links a{
  display:inline-block;
  padding:8px 2px;
  font-size:14px;
  color:#3A4544;
  border-bottom:2px solid transparent;
  white-space:nowrap;
}
.nav-links a:hover{color:var(--c-main);border-bottom-color:var(--c-accent);}
.nav-links a.active{color:var(--c-main);border-bottom-color:var(--c-accent);font-weight:600;}
/* 搜索 */
.search-wrap{position:relative;flex:1 1 240px;max-width:460px;margin-left:auto;}
.search-form{position:relative;display:flex;align-items:center;}
.search-icon{
  position:absolute;left:16px;width:18px;height:18px;color:var(--muted);
  pointer-events:none;transition:color .16s var(--ease);
}
.search-input{
  width:100%;height:44px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:var(--panel);
  padding:0 18px 0 44px;
  font-size:14px;
  color:var(--text);
  transition:border-color .16s var(--ease),box-shadow .16s var(--ease);
}
.search-input::placeholder{color:var(--muted);font-size:13.5px;}
.search-form:hover .search-input{border-color:var(--c-main-l);}
.search-form:hover .search-icon{color:var(--c-main);}
.search-input:focus{outline:none;border-color:var(--c-main);box-shadow:var(--ring);}
.search-panel{
  position:absolute;left:0;right:0;top:calc(100% + 10px);
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-2);
  padding:16px;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .18s var(--ease),transform .18s var(--ease),visibility .18s;
  z-index:20;
}
.search-wrap:hover .search-panel,
.search-wrap:focus-within .search-panel{opacity:1;visibility:visible;transform:translateY(0);}
.panel-label{display:block;font-size:12px;letter-spacing:.08em;color:var(--muted);margin-bottom:10px;}
.chips{display:flex;flex-wrap:wrap;gap:8px;}
.chip{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;
  border-radius:var(--r-pill);
  background:var(--bg-alt);
  color:#3A4544;font-size:12.5px;
  transition:background .16s var(--ease),color .16s var(--ease);
}
.chip:hover{background:var(--c-accent-l);color:var(--c-accent);}
/* 按钮 */
.u-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .16s var(--ease),background .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease),box-shadow .16s var(--ease);
}
.u-btn-solid{background:var(--c-main);color:#F2F7F6;}
.u-btn-solid:hover{background:var(--c-main-t);color:#FFFFFF;transform:translateY(-1px);box-shadow:var(--sh-2);}
.u-btn-solid:active{transform:translateY(0);box-shadow:var(--sh-1);}
.u-btn-ghost{background:var(--panel);color:var(--c-main);border-color:var(--line);}
.u-btn-ghost:hover{background:var(--c-accent-l);border-color:var(--c-main);color:var(--c-main-t);transform:translateY(-1px);}
.u-btn-ghost:active{transform:translateY(0);}
.u-btn-sm{height:40px;padding:0 20px;font-size:14px;}
.u-btn[disabled]{opacity:.5;pointer-events:none;}
.nav-cta{flex:0 0 auto;}
.burger{
  display:none;width:44px;height:44px;flex:0 0 44px;
  border:1px solid var(--line);border-radius:var(--r-sm);
  background:var(--panel);cursor:pointer;position:relative;
  transition:border-color .16s var(--ease);
}
.burger:hover{border-color:var(--c-main);}
.burger span,.burger span::before,.burger span::after{
  position:absolute;left:50%;width:18px;height:1.8px;background:var(--c-main-d);border-radius:2px;
  transform:translateX(-50%);content:"";
}
.burger span{top:21px;}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}
/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,50,56,.45);
  opacity:0;visibility:hidden;transition:opacity .2s var(--ease),visibility .2s;z-index:1050;
}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(360px,88vw);
  background:var(--bg);
  transform:translateX(100%);
  transition:transform .22s var(--ease);
  z-index:1060;
  padding:20px;
  overflow-y:auto;
}
body.drawer-open .drawer{transform:translateX(0);}
body.drawer-open .drawer-mask{opacity:1;visibility:visible;}
.drawer-close{
  width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:var(--panel);color:var(--c-main-d);font-size:16px;cursor:pointer;
  margin-left:auto;display:grid;place-items:center;
}
.drawer-search{position:relative;margin:18px 0 22px;}
.drawer-search .search-input{padding-left:44px;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{
  padding:13px 12px;border-radius:var(--r-sm);color:#3A4544;font-size:15px;
  border-bottom:1px solid var(--line);
  transition:background .16s var(--ease),color .16s var(--ease),padding-left .16s var(--ease);
}
.drawer-nav a:hover,.drawer-nav a.active{background:var(--panel);color:var(--c-main);padding-left:18px;}
.drawer-cta{margin-top:22px;width:100%;}
/* ---------- 文章头部 ---------- */
.page-head{
  background:
    linear-gradient(180deg,rgba(11,50,56,.055),rgba(11,50,56,0)),
    var(--bg);
  border-bottom:1px solid var(--line);
  padding:36px 0 42px;
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;letter-spacing:.04em;color:var(--muted);}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--c-main);}
.crumb .sep{color:#B9BDB8;}
.crumb .cur{color:var(--c-main);font-weight:600;}
.article-h1{
  font-size:clamp(24px,3vw,36px);
  line-height:1.25;
  margin:18px 0 16px;
  max-width:900px;
  letter-spacing:-.015em;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13px;letter-spacing:.04em;color:var(--muted);
}
.meta-row .dot{color:#C4C8C3;}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);
  background:#E4EDEC;color:var(--c-main);
  font-size:12px;letter-spacing:.04em;
}
/* ---------- 正文布局 ---------- */
.article-wrap{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:48px;
  padding-top:56px;
  padding-bottom:72px;
}
@media (min-width:1200px){
  .article-wrap{grid-template-columns:minmax(0,1fr) 300px;}
}
.article-body{
  max-width:820px;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:44px 48px 48px;
  font-size:16px;
  line-height:1.9;
  overflow-wrap:break-word;
}
.article-body > * + *{margin-top:20px;}
.article-body p{margin:0;color:#28302F;}
.article-body h2{
  font-size:clamp(22px,2.4vw,30px);
  line-height:1.35;
  padding-left:14px;
  border-left:3px solid var(--c-accent);
  margin-top:48px;
  margin-bottom:16px;
}
.article-body h3{
  font-family:var(--f-sans);
  font-size:21px;
  font-weight:600;
  letter-spacing:0;
  margin-top:34px;
  margin-bottom:12px;
}
.article-body h2 + p,.article-body h3 + p{margin-top:0;}
.article-body ul,.article-body ol{margin:0;padding-left:22px;list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:8px 0;line-height:1.85;}
.article-body li::marker{color:var(--c-accent);}
.article-body blockquote{
  margin:24px 0;
  background:var(--bg-alt);
  border-left:3px solid var(--c-main);
  border-radius:0 var(--r-md) var(--r-md) 0;
  padding:18px 22px;
  color:#33403F;
}
.article-body blockquote p{color:#33403F;}
.article-body img,
.article-body figure img{
  width:100%;height:auto;border-radius:var(--r-md);
}
.article-body figure{margin:26px 0;}
.article-body figcaption{
  margin-top:10px;font-size:13px;letter-spacing:.04em;color:var(--muted);text-align:center;
}
.article-body table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;
}
.article-body th,.article-body td{
  border:0;border-bottom:1px solid var(--line);
  padding:12px 14px;text-align:left;
}
.article-body th{font-family:var(--f-serif);font-weight:700;color:var(--c-main-d);background:var(--bg-alt);}
.article-body a{color:var(--c-main);border-bottom:1px solid rgba(20,84,91,.28);}
.article-body a:hover{color:var(--c-accent);border-bottom-color:var(--c-accent);}
.article-body code{
  background:var(--bg-alt);border-radius:6px;padding:2px 7px;font-size:14px;color:var(--c-main-d);
}
.article-empty{
  text-align:center;padding:26px 0 10px;
}
.article-empty svg{width:48px;height:48px;color:var(--c-main-l);margin-bottom:14px;}
.article-empty p{font-size:15px;color:var(--muted);margin-bottom:20px;}
/* ---------- 侧栏 ---------- */
.article-side{display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  padding:22px;
}
.side-title{
  font-size:14px;font-weight:600;font-family:var(--f-sans);
  letter-spacing:.06em;color:var(--c-main-d);
  margin-bottom:14px;
}
.side-nav{display:flex;flex-direction:column;}
.side-nav a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 0;
  font-size:14.5px;color:#3A4544;
  border-bottom:1px solid var(--line);
  transition:color .16s var(--ease),padding-left .16s var(--ease);
}
.side-nav a:last-child{border-bottom:0;}
.side-nav a:hover{color:var(--c-main);padding-left:6px;}
.side-nav a::after{content:"→";color:var(--c-main-l);font-size:14px;}
.side-list li{padding:10px 0;border-bottom:1px solid var(--line);}
.side-list li:last-child{border-bottom:0;}
.side-list a{font-size:14px;color:#3A4544;line-height:1.6;display:block;}
.side-list a:hover{color:var(--c-main);border-bottom:2px solid var(--c-accent);display:inline;}
.side-note{font-size:13px;color:var(--muted);line-height:1.75;margin-top:8px;}
@media (min-width:1200px){
  .article-side{position:sticky;top:96px;align-self:start;}
}
/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section-alt{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:720px;margin-bottom:36px;}
.section-head .kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.1em;color:var(--c-accent);font-weight:600;
  margin-bottom:12px;
}
.section-head .kicker::before{content:"";width:22px;height:2px;background:var(--c-accent);border-radius:2px;}
.section-head h2{font-size:clamp(22px,2.4vw,32px);line-height:1.3;}
.section-head p{margin-top:12px;font-size:15.5px;color:var(--muted);line-height:1.8;}
.card-grid{display:grid;gap:24px;grid-template-columns:repeat(3,minmax(0,1fr));}
.news-card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.news-thumb{
  position:relative;aspect-ratio:16/9;background:var(--bg-alt);overflow:hidden;
}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .2s var(--ease);}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-body h3{font-size:17.5px;line-height:1.5;font-family:var(--f-sans);font-weight:600;}
.news-card:hover .news-body h3{color:var(--c-main);}
.news-body p{font-size:14px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--muted);letter-spacing:.04em;}
/* ---------- 上下篇 ---------- */
.postnav{
  display:grid;grid-template-columns:1fr 1fr;gap:20px;
  margin-top:34px;
}
.postnav a{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-md);
  padding:18px 22px;display:flex;flex-direction:column;gap:6px;
  transition:transform .16s var(--ease),box-shadow .16s var(--ease),border-color .16s var(--ease);
}
.postnav a:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--c-main-l);}
.postnav .pn-label{font-size:12.5px;letter-spacing:.08em;color:var(--muted);}
.postnav .pn-title{font-size:15.5px;font-weight:600;color:var(--c-main-d);}
.postnav .pn-right{text-align:right;align-items:flex-end;}
.back-cat{margin-top:26px;text-align:center;font-size:14px;}
.back-cat a{border-bottom:2px solid transparent;padding-bottom:2px;}
.back-cat a:hover{border-bottom-color:var(--c-accent);color:var(--c-main);}
/* ---------- FAQ ---------- */
.faq-list{max-width:900px;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;background:none;border:0;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 4px;text-align:left;
  font-size:17px;font-weight:600;color:var(--text);font-family:var(--f-sans);
  transition:color .16s var(--ease);
}
.faq-q:hover{color:var(--c-main);}
.faq-icon{
  position:relative;flex:0 0 22px;width:22px;height:22px;border-radius:50%;
  background:var(--c-accent-l);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-accent);
  transform:translate(-50%,-50%);border-radius:2px;
}
.faq-icon::before{width:10px;height:2px;}
.faq-icon::after{width:2px;height:10px;transition:transform .16s var(--ease),opacity .16s var(--ease);}
.faq-item.open .faq-icon::after{transform:translate(-50%,-50%) rotate(45deg);opacity:0;}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .18s var(--ease);
}
.faq-a-inner{
  background:var(--bg-alt);border-radius:var(--r-sm);
  padding:18px 20px;font-size:15px;line-height:1.85;color:#33403F;margin:0 0 20px;
}
/* ---------- CTA ---------- */
.cta-band{
  background:var(--c-main-d);
  color:#DDE9E7;
  padding:64px 0;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(600px 300px at 88% 20%,rgba(200,118,60,.22),transparent 70%);
  pointer-events:none;
}
.cta-inner{position:relative;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;}
.cta-inner h2{color:#F4F8F7;font-size:clamp(22px,2.4vw,30px);line-height:1.3;max-width:620px;}
.cta-inner p{margin-top:12px;font-size:15px;color:#BFD3D1;max-width:560px;line-height:1.8;}
.cta-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}
.cta-band .u-btn-solid{background:#F2F7F6;color:var(--c-main-d);}
.cta-band .u-btn-solid:hover{background:#FFFFFF;color:var(--c-main-d);}
.link-quiet{color:#D6E4E2;font-size:14.5px;border-bottom:2px solid transparent;padding-bottom:2px;}
.link-quiet:hover{color:#FFFFFF;border-bottom-color:var(--c-accent);}
/* ---------- 表单区 ---------- */
.form-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:48px;align-items:start;}
.form-panel{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:32px;
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13.5px;color:#3A4544;margin-bottom:8px;letter-spacing:.03em;}
.field input,.field textarea,.field select{
  width:100%;height:44px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:#FCFCFA;padding:0 14px;
  transition:border-color .16s var(--ease),box-shadow .16s var(--ease),background .16s var(--ease);
}
.field textarea{height:auto;min-height:100px;padding:12px 14px;line-height:1.75;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--muted);}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--c-main);background:#FFFFFF;box-shadow:var(--ring);
}
.field .hint{font-size:12.5px;color:var(--muted);margin-top:6px;}
.form-note{font-size:13px;color:var(--muted);line-height:1.8;margin-top:14px;}
.check-line{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--muted);margin-top:16px;}
.check-line input{width:18px;height:18px;margin-top:2px;accent-color:var(--c-main);}
.form-ok{
  display:none;margin-top:14px;padding:12px 16px;border-radius:var(--r-sm);
  background:#E4EDEC;color:var(--c-main);font-size:14px;
}
/* 浮动入口 */
.float-entry{
  position:fixed;right:24px;bottom:24px;z-index:1030;
  display:inline-flex;align-items:center;gap:8px;
  height:52px;padding:0 24px;border:0;border-radius:var(--r-pill);
  background:var(--c-accent);color:#FFFFFF;font-size:15px;font-weight:600;
  box-shadow:var(--sh-2);cursor:pointer;
  transition:transform .16s var(--ease),background .16s var(--ease);
}
.float-entry:hover{background:#B3662F;transform:translateY(-2px);}
.to-top{
  position:fixed;right:24px;bottom:88px;z-index:1030;
  width:46px;height:46px;border-radius:50%;
  border:1px solid var(--line);background:var(--panel);color:var(--c-main);
  display:grid;place-items:center;cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;
  box-shadow:var(--sh-1);
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--c-accent-l);border-color:var(--c-accent);}
/* modal */
.modal-content{
  border:0;border-radius:var(--r-lg);box-shadow:var(--sh-2);
  background:var(--panel);
}
.modal-header{border-bottom:1px solid var(--line);padding:20px 26px;}
.modal-title{font-size:19px;font-family:var(--f-serif);}
.modal-body{padding:24px 26px 28px;}
.modal-footer{border-top:1px solid var(--line);padding:16px 26px;}
/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-main-d);color:#BFD3D1;padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.1);color:#F2F7F6;}
.footer-brand .bname{font-family:var(--f-serif);font-size:16.5px;color:#F4F8F7;font-weight:700;}
.footer-about{font-size:14px;line-height:1.85;color:#A9C1BF;max-width:340px;}
.footer-title{font-size:14px;font-weight:600;color:#E8F1F0;letter-spacing:.06em;margin-bottom:14px;font-family:var(--f-sans);}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:#BFD3D1;line-height:1.8;}
.footer-links a:hover{color:#FFFFFF;border-bottom:2px solid var(--c-accent);display:inline;}
.footer-contact li{font-size:14px;line-height:1.9;color:#BFD3D1;}
.footer-contact b{color:#EAF3F2;font-weight:600;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#9DB6B4;letter-spacing:.03em;
}
/* ---------- 动画 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
.reveal.in{opacity:1;transform:none;}
/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .nav-links{gap:10px;}
  .nav-links a{font-size:13px;}
  .search-wrap{max-width:320px;}
  .brand-text{font-size:15px;}
  .site-footer .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:991px){
  .nav-links,.nav-search,.nav-cta{display:none;}
  .burger{display:block;margin-left:auto;}
  .nav-inner{height:64px;}
  .topbar-inner{justify-content:center;}
  .topbar-links{display:none;}
  .article-body{padding:30px 24px 34px;}
  .article-wrap{padding-top:36px;padding-bottom:52px;gap:32px;}
  .section{padding:64px 0;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
  .form-grid{grid-template-columns:1fr;gap:28px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
}
@media (max-width:767px){
  .container-x{padding-left:20px;padding-right:20px;}
  .card-grid{grid-template-columns:1fr;}
  .article-h1{font-size:24px;}
  .article-body{font-size:15.5px;line-height:1.8;border-radius:var(--r-md);}
  .article-body h2{font-size:22px;margin-top:38px;}
  .article-body h3{font-size:19px;}
  .postnav{grid-template-columns:1fr;}
  .postnav .pn-right{text-align:left;align-items:flex-start;}
  .faq-q{font-size:15.5px;padding:18px 2px;}
  .cta-band{padding:48px 0;}
  .site-footer{padding-top:48px;}
  .site-footer .footer-grid{grid-template-columns:1fr;gap:26px;}
  .float-entry{right:16px;bottom:16px;height:48px;padding:0 20px;font-size:14px;}
  .to-top{right:16px;bottom:76px;width:42px;height:42px;}
  .form-panel{padding:24px 20px;}
}
@media (max-width:519px){
  .article-h1{font-size:22px;}
  .meta-row{font-size:12.5px;}
  .modal-dialog{margin:0;align-items:flex-end;}
  .modal-content{border-radius:20px 20px 0 0;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category2 */
:root{
  --c-main:#14545B;
  --c-main-d:#0B3238;
  --c-main-l:#A8C7C4;
  --c-accent:#C8763C;
  --c-accent-l:#F3E3D6;
  --c-bg:#F5F4F0;
  --c-card:#FFFFFF;
  --c-soft:#EDEAE4;
  --c-line:#E3E1DA;
  --c-text:#1A1F20;
  --c-muted:#6B7574;
  --c-warn:#B4472F;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,50,56,.04), 0 8px 24px -12px rgba(11,50,56,.12);
  --sh-2:0 2px 4px rgba(11,50,56,.06), 0 16px 36px -16px rgba(11,50,56,.20);
  --ring:0 0 0 3px rgba(20,84,91,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .16s var(--ease)}
a:hover{color:var(--c-main)}
button{font-family:inherit;border:0;background:none;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2{font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;letter-spacing:-.01em}
:focus-visible{outline:2px solid var(--c-main);outline-offset:2px}

.container-x{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}

/* ---------- 顶部工具条 ---------- */
.topbar{background:var(--c-main-d);color:#DCE7E6;font-size:12.5px;letter-spacing:.06em}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;height:36px}
.topbar-links{display:flex;gap:20px}
.topbar-links a{color:#A8C7C4}
.topbar-links a:hover{color:#F3E3D6}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:60}
.mainnav{
  background:var(--c-bg);
  border-bottom:1px solid transparent;
  transition:height .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease);
  height:76px;
}
.mainnav.shrink{
  height:64px;
  background:rgba(245,244,240,.92);
  backdrop-filter:blur(10px);
  border-bottom-color:var(--c-line);
  box-shadow:0 6px 20px -16px rgba(11,50,56,.35);
}
.nav-inner{display:flex;align-items:center;gap:18px;height:100%}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:10px;background:var(--c-main);color:#F5F4F0;
  display:flex;align-items:center;justify-content:center;font-family:"Noto Serif SC","Songti SC",serif;
  font-size:18px;font-weight:700;flex:0 0 36px;
}
.brand-text{font-family:"Noto Serif SC","Songti SC",serif;font-size:16.5px;font-weight:700;color:var(--c-main-d);letter-spacing:.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:16px}
.nav-links a{
  display:inline-block;padding:6px 2px;font-size:14.5px;color:#33403F;position:relative;
}
.nav-links a::after{
  content:"";position:absolute;left:2px;right:2px;bottom:0;height:2px;border-radius:2px;
  background:var(--c-accent);transform:scaleX(0);transform-origin:left;transition:transform .18s var(--ease);
}
.nav-links a:hover{color:var(--c-main)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--c-main);font-weight:600}
.nav-links a.active::after{transform:scaleX(1)}

.search-wrap{position:relative;flex:1 1 auto;max-width:440px;margin:0 auto;min-width:200px}
.search-form{display:flex;align-items:center;gap:10px;height:44px;padding:0 18px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-pill);transition:border-color .18s var(--ease), box-shadow .18s var(--ease)}
.search-wrap:hover .search-form{border-color:var(--c-main-l)}
.search-form:focus-within{border-color:var(--c-main);box-shadow:var(--ring)}
.search-icon{width:18px;height:18px;color:var(--c-muted);flex:0 0 18px}
.search-input{flex:1 1 auto;border:0;outline:none;background:transparent;font-size:14.5px;color:var(--c-text);height:40px;min-width:0}
.search-input::placeholder{color:var(--c-muted)}
.search-panel{
  position:absolute;top:calc(100% + 10px);left:0;right:0;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-md);box-shadow:var(--sh-2);padding:16px;
  opacity:0;visibility:hidden;transform:translateY(-6px);transition:opacity .18s var(--ease),transform .18s var(--ease),visibility .18s;
}
.search-wrap:focus-within .search-panel{opacity:1;visibility:visible;transform:translateY(0)}
.panel-label{display:block;font-size:12px;letter-spacing:.08em;color:var(--c-muted);margin-bottom:10px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-pill);background:#EAF1F0;color:var(--c-main);font-size:12.5px;transition:background .16s var(--ease)}
.chip:hover{background:var(--c-accent-l);color:var(--c-accent)}

.u-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;
  border-radius:var(--r-pill);border:1px solid transparent;font-size:15px;font-weight:600;
  transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.u-btn-solid{background:var(--c-main);color:#F5F4F0}
.u-btn-solid:hover{background:#0F434A;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.u-btn-solid:active{transform:translateY(0);box-shadow:var(--sh-1)}
.u-btn-ghost{background:#fff;border-color:var(--c-line);color:var(--c-main)}
.u-btn-ghost:hover{background:var(--c-accent-l);border-color:var(--c-main);color:var(--c-main)}
.u-btn-ghost:active{transform:translateY(1px)}
.u-btn-sm{height:40px;padding:0 18px;font-size:14px}
.nav-cta{flex:0 0 auto}

.burger{display:none;width:44px;height:44px;align-items:center;justify-content:center;border-radius:12px;background:#fff;border:1px solid var(--c-line)}
.burger span{position:relative;width:18px;height:2px;background:var(--c-main);border-radius:2px;display:block}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-main);border-radius:2px}
.burger span::before{top:-6px}
.burger span::after{top:6px}
.burger:hover{background:var(--c-accent-l);border-color:var(--c-main)}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(11,50,56,.42);opacity:0;visibility:hidden;transition:opacity .22s var(--ease),visibility .22s;z-index:80}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(360px,86vw);background:var(--c-bg);z-index:90;
  transform:translateX(102%);transition:transform .22s var(--ease);overflow-y:auto;padding:20px 20px 40px;
  box-shadow:-20px 0 40px -24px rgba(11,50,56,.5);
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);background:#fff;display:flex;align-items:center;justify-content:center}
.drawer-close:hover{background:var(--c-accent-l)}
.drawer-close svg{width:18px;height:18px;color:var(--c-main)}
.drawer .search-wrap{max-width:none;margin:0 0 20px}
.drawer-links{display:flex;flex-direction:column;gap:2px;margin-bottom:22px}
.drawer-links a{display:flex;align-items:center;justify-content:space-between;min-height:48px;padding:0 14px;border-radius:var(--r-sm);font-size:15px;color:#33403F;border:1px solid transparent}
.drawer-links a:hover{background:#fff;border-color:var(--c-line);color:var(--c-main)}
.drawer-links a.active{background:#EAF1F0;color:var(--c-main);font-weight:600}
.drawer-cta{width:100%}

/* ---------- 页面英雄区 ---------- */
.page-hero{padding:44px 0 72px;position:relative;overflow:hidden;border-bottom:1px solid var(--c-line)}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(237,234,228,.9),rgba(245,244,240,0));
  pointer-events:none;
}
.page-hero .container-x{position:relative}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.04em;color:var(--c-muted);margin-bottom:26px;flex-wrap:wrap}
.crumbs a{color:var(--c-muted)}
.crumbs a:hover{color:var(--c-main)}
.crumbs .cur{color:var(--c-main);font-weight:600}
.crumbs .sep{color:#C3C1B9}

.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:56px;align-items:center}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;border-radius:var(--r-pill);background:#EAF1F0;color:var(--c-main);font-size:12.5px;letter-spacing:.06em;margin-bottom:18px}
.hero-title{font-size:clamp(28px,3.6vw,44px);line-height:1.16;font-weight:700;color:var(--c-main-d)}
.hero-title .hl{color:var(--c-accent)}
.hero-lead{margin-top:20px;font-size:16px;line-height:1.9;color:#3B4645;max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-facts{display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:30px;padding-top:22px;border-top:1px solid var(--c-line)}
.hero-facts li{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--c-muted)}
.dot{width:8px;height:8px;border-radius:50%;background:var(--c-accent);flex:0 0 8px}
.hero-media{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);background:var(--c-soft)}
.hero-media img{width:100%;height:100%;max-height:420px;object-fit:cover;aspect-ratio:16/11}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(200deg,rgba(20,84,91,.34),rgba(11,50,56,.06) 62%)}

/* ---------- 板块通用 ---------- */
section{padding:96px 0}
.sec-soft{background:var(--c-soft)}
.sec-head{max-width:760px;margin-bottom:48px}
.sec-tag{display:inline-block;font-size:12.5px;letter-spacing:.1em;color:var(--c-accent);font-weight:600;margin-bottom:12px}
.sec-title{font-size:clamp(22px,2.4vw,32px);line-height:1.28;color:var(--c-main-d)}
.sec-desc{margin-top:16px;color:var(--c-muted);font-size:15.5px;line-height:1.9}

/* ---------- 两列交错网格 ---------- */
.stagger{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:32px 28px}
.v-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;
  box-shadow:var(--sh-1);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  display:flex;flex-direction:column;
}
.stagger .v-card:nth-child(even){margin-top:44px}
.v-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D6D3C9}
.v-thumb{display:block;overflow:hidden;background:var(--c-soft)}
.v-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .28s var(--ease)}
.v-card:hover .v-thumb img{transform:scale(1.03)}
.v-body{padding:26px 26px 24px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto}
.tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);background:#EAF1F0;color:var(--c-main);font-size:12px;letter-spacing:.03em;align-self:flex-start}
.v-body h3{font-size:20px;font-weight:600;line-height:1.5;color:var(--c-main-d)}
.v-body p{font-size:15px;color:#3B4645;line-height:1.85}
.link-more{margin-top:auto;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-main);align-self:flex-start;padding-bottom:2px;border-bottom:2px solid transparent;transition:border-color .16s var(--ease),color .16s var(--ease)}
.link-more svg{width:16px;height:16px;transition:transform .16s var(--ease)}
.link-more:hover{color:var(--c-accent);border-color:var(--c-accent)}
.link-more:hover svg{transform:translateX(3px)}

/* ---------- 数据条 ---------- */
.metrics{border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);padding:56px 0}
.metric-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:32px}
.metric-num{font-family:"Noto Serif SC","Songti SC",serif;font-size:clamp(34px,4vw,52px);font-weight:700;line-height:1;color:var(--c-accent);font-variant-numeric:tabular-nums}
.metric-num i{font-size:16px;font-style:normal;color:var(--c-main);margin-left:6px;font-family:"Noto Sans SC",sans-serif;font-weight:600}
.metric p{margin-top:12px;font-size:14px;color:var(--c-muted);line-height:1.8}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}
.step{background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-md);padding:26px 22px;box-shadow:var(--sh-1);transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.step-no{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;background:var(--c-accent-l);color:var(--c-accent);font-weight:700;font-size:14px;font-variant-numeric:tabular-nums}
.step h3{margin-top:16px;font-size:16.5px;font-weight:600;color:var(--c-main-d)}
.step p{margin-top:10px;font-size:14.5px;color:var(--c-muted);line-height:1.8}

/* ---------- 极简表格 ---------- */
.table-wrap{overflow-x:auto;background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-md);box-shadow:var(--sh-1)}
.min-table{width:100%;min-width:660px;border-collapse:collapse;font-size:15px}
.min-table th{
  text-align:left;padding:16px 22px;font-size:13.5px;font-weight:600;letter-spacing:.05em;color:var(--c-main);
  border-bottom:1px solid var(--c-line);background:#FAF9F6;white-space:nowrap;
}
.min-table td{padding:18px 22px;border-bottom:1px solid var(--c-line);vertical-align:top;color:#3B4645;line-height:1.8}
.min-table tr:last-child td{border-bottom:0}
.min-table tbody tr:hover td{background:#FBFAF7}
.min-table td:first-child{font-weight:600;color:var(--c-main-d)}

/* ---------- FAQ ---------- */
.faq{max-width:900px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item:first-child{border-top:1px solid var(--c-line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;text-align:left;font-size:17px;font-weight:600;color:var(--c-main-d);
  transition:color .16s var(--ease);
}
.faq-q:hover{color:var(--c-main)}
.pm{position:relative;width:18px;height:18px;flex:0 0 18px;transition:transform .16s var(--ease)}
.pm::before,.pm::after{content:"";position:absolute;background:var(--c-accent);border-radius:2px}
.pm::before{left:0;top:8px;width:18px;height:2px}
.pm::after{left:8px;top:0;width:2px;height:18px}
.faq-q[aria-expanded="true"] .pm{transform:rotate(45deg)}
.faq-a{padding:4px 4px 24px;font-size:15px;color:#3B4645;line-height:1.9;max-width:760px}

/* ---------- CTA ---------- */
.cta-band{background:var(--c-main);color:#E9F1F0;border-radius:0;padding:88px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(22px,2.6vw,32px);color:#F5F4F0;line-height:1.35;max-width:640px}
.cta-band p{margin-top:14px;color:#BCD3D1;font-size:15.5px;max-width:640px}
.cta-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.cta-band .u-btn-solid{background:#F3E3D6;color:#0B3238}
.cta-band .u-btn-solid:hover{background:#fff;color:#0B3238}
.cta-band .link-plain{color:#E9F1F0;font-size:15px;font-weight:600;border-bottom:2px solid transparent;padding-bottom:2px}
.cta-band .link-plain:hover{color:#F3E3D6;border-color:#C8763C}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-main-d);color:#C7D6D5;padding:72px 0 0;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:#F3E3D6;color:#0B3238}
.bname{font-family:"Noto Serif SC","Songti SC",serif;font-size:16.5px;font-weight:700;color:#F5F4F0}
.footer-about{color:#9FB5B4;line-height:1.9;font-size:14px;max-width:340px}
.footer-title{font-size:14px;font-weight:600;color:#F5F4F0;letter-spacing:.05em;margin-bottom:18px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{color:#AFC3C2}
.footer-links a:hover{color:#F3E3D6}
.footer-contact{display:flex;flex-direction:column;gap:12px;color:#9FB5B4}
.footer-contact b{color:#E4EDEC;font-weight:600}
.footer-bottom{
  border-top:1px solid rgba(168,199,196,.24);padding:22px 0 28px;display:flex;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:13px;color:#8FA5A4;letter-spacing:.03em;
}

/* ---------- 动效 ---------- */
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
.fade-up{opacity:0;animation:fadeUp .6s var(--ease) forwards}
.d1{animation-delay:.05s}.d2{animation-delay:.11s}.d3{animation-delay:.17s}.d4{animation-delay:.23s}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .nav-links{gap:12px}
  .nav-links a{font-size:14px}
  .search-wrap{max-width:320px}
}
@media (max-width:991.98px){
  .topbar{display:none}
  .nav-links,.nav-search,.nav-cta{display:none}
  .burger{display:flex}
  .nav-inner{justify-content:space-between}
  .mainnav{height:66px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-media{order:2}
  .hero-media img{max-height:320px}
  .stagger{grid-template-columns:1fr;gap:22px}
  .stagger .v-card:nth-child(even){margin-top:0}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  section{padding:72px 0}
  .page-hero{padding:32px 0 56px}
  .cta-band{padding:64px 0}
}
@media (max-width:575.98px){
  .container-x{padding:0 20px}
  .brand-text{font-size:15px}
  .hero-title{font-size:26px}
  .hero-lead{font-size:15.5px}
  .steps{grid-template-columns:1fr}
  .metric-grid{grid-template-columns:1fr 1fr;gap:22px}
  .v-body{padding:20px 20px 20px}
  .v-body h3{font-size:18px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  section{padding:56px 0}
  .u-btn{width:100%}
  .hero-actions{flex-direction:column;align-items:stretch}
  .cta-actions{width:100%}
  .cta-band .u-btn{width:100%}
  .faq-q{font-size:16px;padding:18px 2px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .fade-up{opacity:1}
}

/* roulang page: category3 */
:root{
  --brand:#14545B;
  --brand-dark:#0B3238;
  --brand-soft:#A8C7C4;
  --accent:#C8763C;
  --accent-soft:#F3E3D6;
  --bg:#F5F4F0;
  --card:#FFFFFF;
  --bg-alt:#EDEAE4;
  --line:#E3E1DA;
  --text:#1A1F20;
  --muted:#6B7574;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,50,56,.04), 0 8px 24px -12px rgba(11,50,56,.12);
  --sh-2:0 2px 4px rgba(11,50,56,.06), 0 16px 36px -16px rgba(11,50,56,.20);
  --focus:0 0 0 3px rgba(20,84,91,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .16s var(--ease),box-shadow .16s var(--ease);}
a:hover{color:var(--brand);}
h1,h2,h3,h4{margin:0;font-family:var(--serif);font-weight:700;color:var(--text);letter-spacing:-.01em;}
p{margin:0 0 18px;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:none;box-shadow:var(--focus);border-radius:var(--r-sm);}
.container-x{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}

/* ---------- 顶部工具条 ---------- */
.topbar{background:var(--brand-dark);color:#DDE6E4;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;height:36px;font-size:12.5px;letter-spacing:.06em;}
.topbar-links{display:flex;gap:22px;}
.topbar-links a{color:#DDE6E4;}
.topbar-links a:hover{color:#fff;}

/* ---------- 主导航 ---------- */
.site-header{position:relative;z-index:1040;}
.mainnav{
  position:sticky;top:0;z-index:1035;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  transition:height .2s var(--ease),box-shadow .2s var(--ease),backdrop-filter .2s var(--ease);
}
.mainnav.scrolled{backdrop-filter:saturate(160%) blur(10px);box-shadow:0 6px 22px -18px rgba(11,50,56,.5);}
.nav-inner{display:flex;align-items:center;gap:26px;height:76px;transition:height .2s var(--ease);}
.mainnav.scrolled .nav-inner{height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--brand),var(--brand-dark));
  color:#F5F4F0;font-family:var(--serif);font-size:18px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.brand-text{font-family:var(--serif);font-size:17px;font-weight:700;color:var(--brand-dark);white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:22px;margin:0;}
.nav-links a{
  display:inline-block;padding:6px 2px;font-size:15px;color:#3A4444;position:relative;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--accent);
  transform:scaleX(0);transform-origin:left;transition:transform .18s var(--ease);
}
.nav-links a:hover{color:var(--brand);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--brand);font-weight:600;}
.nav-links a.active::after{transform:scaleX(1);}

.search-wrap{position:relative;flex:1 1 auto;max-width:520px;margin-left:auto;}
.search-form{
  display:flex;align-items:center;gap:10px;height:44px;padding:0 18px;
  background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--r-pill);
  transition:border-color .16s var(--ease),box-shadow .16s var(--ease),background .16s var(--ease);
}
.search-wrap:hover .search-form{border-color:var(--brand-soft);}
.search-wrap:focus-within .search-form{background:#fff;border-color:var(--brand);box-shadow:var(--focus);}
.search-icon{width:18px;height:18px;flex:0 0 auto;color:var(--muted);}
.search-input{
  flex:1;border:0;background:transparent;font-size:14.5px;color:var(--text);
  height:100%;outline:none;
}
.search-input::placeholder{color:var(--muted);}
.search-panel{
  position:absolute;top:calc(100% + 10px);left:0;right:0;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-2);
  padding:16px 18px;opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .16s var(--ease),transform .16s var(--ease),visibility .16s;
  z-index:20;
}
.search-wrap:focus-within .search-panel{opacity:1;visibility:visible;transform:translateY(0);}
.panel-label{display:block;font-size:12px;letter-spacing:.06em;color:var(--muted);margin-bottom:10px;}
.chips{display:flex;flex-wrap:wrap;gap:8px;}
.chip{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--brand-soft);color:var(--brand);font-size:12px;line-height:1;transition:background .16s var(--ease);
}
.chip:hover{background:var(--accent-soft);color:var(--brand-dark);}

.nav-cta{flex:0 0 auto;}
.burger{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:#fff;position:relative;cursor:pointer;
}
.burger span,.burger span::before,.burger span::after{
  position:absolute;left:50%;width:18px;height:1.6px;background:var(--brand-dark);content:"";
  transform:translateX(-50%);transition:transform .18s var(--ease);
}
.burger span{top:21px;}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}

/* ---------- 按钮 ---------- */
.u-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .16s var(--ease),box-shadow .16s var(--ease),background .16s var(--ease),border-color .16s var(--ease),color .16s var(--ease);
}
.u-btn-solid{background:var(--brand);color:#F5F4F0;}
.u-btn-solid:hover{background:#0F434A;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.u-btn-solid:active{transform:translateY(0);}
.u-btn-ghost{background:#fff;border-color:var(--line);color:var(--brand);}
.u-btn-ghost:hover{background:var(--accent-soft);border-color:var(--brand);color:var(--brand-dark);}
.u-btn-light{background:#F5F4F0;color:var(--brand-dark);}
.u-btn-light:hover{background:#fff;color:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--sh-2);}
.u-btn-sm{height:42px;padding:0 20px;font-size:14px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);
  border-bottom:2px solid transparent;padding-bottom:2px;
}
.link-arrow:hover{border-bottom-color:var(--accent);color:var(--brand-dark);}
.link-arrow svg{width:16px;height:16px;}

/* ---------- 内页 Hero ---------- */
.cat-hero{
  position:relative;color:#EDF2F1;padding:62px 0 68px;overflow:hidden;
  background:
    linear-gradient(100deg,rgba(11,50,56,.92) 0%,rgba(11,50,56,.78) 46%,rgba(11,50,56,.52) 100%),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
}
.cat-hero .breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.04em;color:#B8CCC9;margin-bottom:20px;background:none;padding:0;
}
.cat-hero .breadcrumb a{color:#B8CCC9;}
.cat-hero .breadcrumb a:hover{color:#fff;}
.cat-hero .breadcrumb .cur{color:var(--accent);}
.cat-hero h1{
  color:#fff;font-size:clamp(26px,3.4vw,42px);line-height:1.24;letter-spacing:-.02em;max-width:820px;
}
.cat-hero .lede{
  margin:20px 0 30px;max-width:760px;font-size:16px;line-height:1.9;color:#D6E2E0;
}
.cat-hero .hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px;}
.cat-hero .hero-facts{
  display:flex;flex-wrap:wrap;gap:34px;margin-top:38px;padding-top:26px;border-top:1px solid rgba(237,242,241,.22);
  font-size:13.5px;letter-spacing:.04em;color:#C4D6D3;
}
.cat-hero .hero-facts b{display:block;color:#fff;font-family:var(--serif);font-size:19px;margin-bottom:2px;}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section-alt{background:var(--bg-alt);}
.section-head{max-width:760px;margin-bottom:52px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.1em;color:var(--accent);
  text-transform:uppercase;margin-bottom:14px;font-weight:600;
}
.section-head .eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);display:inline-block;}
.section-head h2{font-size:clamp(22px,2.4vw,32px);line-height:1.3;}
.section-head p{margin:16px 0 0;color:var(--muted);font-size:15.5px;}

/* ---------- 排查前准备 ---------- */
.prep-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.prep-item{background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);padding:26px 24px;box-shadow:var(--sh-1);transition:transform .18s var(--ease),box-shadow .18s var(--ease);}
.prep-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.prep-item .pnum{
  font-family:var(--serif);font-size:15px;font-weight:700;color:var(--accent);letter-spacing:.06em;
}
.prep-item h3{font-size:19px;margin:10px 0 10px;font-family:var(--sans);font-weight:600;}
.prep-item p{margin:0;font-size:14.5px;color:var(--muted);line-height:1.8;}

/* ---------- 时间线 ---------- */
.timeline{position:relative;padding:8px 0;}
.timeline::before{
  content:"";position:absolute;top:0;bottom:0;left:50%;width:2px;background:var(--line);transform:translateX(-50%);
}
.tl-item{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:56px;margin-bottom:40px;}
.tl-item:last-child{margin-bottom:0;}
.tl-dot{
  position:absolute;left:50%;top:34px;width:14px;height:14px;border-radius:50%;background:var(--accent);
  transform:translateX(-50%);box-shadow:0 0 0 6px var(--bg);z-index:2;
}
.section-alt .tl-dot{box-shadow:0 0 0 6px var(--bg-alt);}
.tl-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px 26px 24px;box-shadow:var(--sh-1);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease);
}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.tl-item:nth-child(odd) .tl-card{grid-column:1;}
.tl-item:nth-child(even) .tl-card{grid-column:2;}
.tl-step{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;
  color:var(--brand);background:var(--brand-soft);height:26px;padding:0 12px;border-radius:var(--r-pill);
  margin-bottom:14px;font-weight:600;
}
.tl-card h3{font-size:20px;font-family:var(--sans);font-weight:600;margin-bottom:10px;}
.tl-card p{margin:0 0 12px;font-size:14.8px;color:#3C4746;line-height:1.85;}
.tl-card .tl-note{
  margin:0;padding-left:14px;border-left:3px solid var(--accent-soft);font-size:13.5px;color:var(--muted);
}

/* ---------- 常见情况列表 ---------- */
.pattern-list{border-top:1px solid var(--line);}
.pattern-row{
  display:grid;grid-template-columns:52px 1.1fr 1.6fr 28px;gap:20px;align-items:center;
  padding:24px 0;border-bottom:1px solid var(--line);transition:background .16s var(--ease);
}
.pattern-row:hover{background:#fff;}
.pattern-row .idx{font-family:var(--serif);font-size:20px;font-weight:700;color:var(--accent);}
.pattern-row .pt{font-size:17px;font-weight:600;}
.pattern-row .pd{font-size:14.5px;color:var(--muted);}
.pattern-row .go{color:var(--brand-soft);}
.pattern-row .go svg{width:20px;height:20px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;background:none;border:0;text-align:left;display:flex;align-items:center;justify-content:space-between;
  gap:20px;padding:22px 0;font-size:16.5px;font-weight:600;color:var(--text);cursor:pointer;
  transition:color .16s var(--ease);
}
.faq-q:hover{color:var(--brand);}
.faq-q .sign{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);
  position:relative;transition:transform .16s var(--ease),background .16s var(--ease),border-color .16s var(--ease);
}
.faq-q .sign::before,.faq-q .sign::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);transform:translate(-50%,-50%);
}
.faq-q .sign::before{width:11px;height:1.6px;}
.faq-q .sign::after{width:1.6px;height:11px;}
.faq-q[aria-expanded="true"] .sign{transform:rotate(45deg);background:var(--accent-soft);border-color:var(--accent-soft);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .18s var(--ease);}
.faq-a .inner{
  background:var(--bg-alt);border-radius:var(--r-sm);padding:20px;font-size:14.8px;color:#3C4746;line-height:1.85;
  margin-bottom:20px;
}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:linear-gradient(120deg,var(--brand) 0%,var(--brand-dark) 100%);
  color:#EDF2F1;padding:64px 0;
}
.cta-band .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;min-height:130px;}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,30px);line-height:1.32;max-width:640px;}
.cta-band p{margin:12px 0 0;color:#C9DAD7;font-size:15px;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:16px;flex:0 0 auto;}
.cta-band .link-arrow{color:#F3E3D6;}
.cta-band .link-arrow:hover{color:#fff;border-bottom-color:var(--accent);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-dark);color:#C9DAD7;padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(245,244,240,.12);color:#F5F4F0;}
.footer-brand .bname{font-family:var(--serif);font-size:17px;font-weight:700;color:#F5F4F0;}
.footer-about{font-size:14px;line-height:1.9;color:#A9BFBC;margin:0;}
.footer-title{font-size:14px;font-weight:600;color:#F5F4F0;font-family:var(--sans);margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:4px;}
.footer-links a{color:#C9DAD7;font-size:14px;line-height:2;}
.footer-links a:hover{color:#fff;}
.footer-contact li{font-size:14px;line-height:2;color:#C9DAD7;}
.footer-contact b{color:#F5F4F0;font-weight:600;}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(201,218,215,.18);padding:22px 0;
  display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:13px;color:#8FA9A6;
}

/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,50,56,.5);opacity:0;visibility:hidden;
  transition:opacity .2s var(--ease),visibility .2s;z-index:1050;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(360px,88vw);background:#fff;z-index:1055;
  transform:translateX(100%);transition:transform .22s var(--ease);
  padding:24px 22px;overflow-y:auto;box-shadow:-12px 0 32px -20px rgba(11,50,56,.5);
}
.drawer.open{transform:translateX(0);}
.drawer .d-search{display:flex;align-items:center;gap:10px;height:44px;padding:0 16px;background:var(--bg-alt);border-radius:var(--r-pill);border:1px solid var(--line);margin-bottom:22px;}
.drawer .d-search input{flex:1;border:0;background:transparent;outline:none;font-size:14.5px;}
.drawer .d-links{display:flex;flex-direction:column;margin-bottom:24px;}
.drawer .d-links a{padding:14px 2px;border-bottom:1px solid var(--line);font-size:15.5px;color:#2B3636;}
.drawer .d-links a.active{color:var(--brand);font-weight:600;}
.drawer .u-btn{width:100%;}

/* ---------- 模态 ---------- */
.modal-content{border:0;border-radius:var(--r-lg);box-shadow:var(--sh-2);}
.modal-header{border-bottom:1px solid var(--line);padding:20px 24px;}
.modal-title{font-family:var(--serif);font-size:19px;}
.modal-body{padding:24px;}
.form-label{font-size:13.5px;color:var(--muted);margin-bottom:6px;}
.form-control{
  height:44px;border-radius:var(--r-sm);border:1px solid var(--line);font-size:14.5px;
  padding:0 14px;transition:border-color .16s var(--ease),box-shadow .16s var(--ease);
}
textarea.form-control{height:96px;padding:12px 14px;}
.form-control:focus{border-color:var(--brand);box-shadow:var(--focus);}
.form-control::placeholder{color:var(--muted);}

@media (max-width:1199px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:991px){
  .topbar{display:none;}
  .nav-links,.nav-cta,.nav-search{display:none;}
  .burger{display:block;}
  .nav-inner{height:64px;gap:14px;}
  .section{padding:72px 0;}
  .prep-grid{grid-template-columns:1fr;gap:18px;}
  .timeline::before{left:18px;transform:none;}
  .tl-item{grid-template-columns:1fr;gap:0;padding-left:48px;}
  .tl-item .tl-card{grid-column:1 !important;text-align:left;}
  .tl-dot{left:18px;transform:translateX(-50%);top:30px;}
  .pattern-row{grid-template-columns:40px 1fr;gap:12px;padding:20px 0;}
  .pattern-row .pd{grid-column:2;color:var(--muted);}
  .pattern-row .go{display:none;}
  .cta-band .cta-inner{flex-direction:column;align-items:flex-start;gap:26px;}
}
@media (max-width:575px){
  .container-x{padding:0 20px;}
  body{font-size:15.5px;line-height:1.8;}
  .section{padding:56px 0;}
  .cat-hero{padding:44px 0 52px;}
  .cat-hero .hero-facts{gap:22px;flex-direction:column;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .brand-text{font-size:15px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important;}
}

/* roulang page: category4 */
:root{
  --c-main:#14545B;
  --c-main-deep:#0B3238;
  --c-main-dark2:#0F434A;
  --c-main-soft:#A8C7C4;
  --c-accent:#C8763C;
  --c-accent-soft:#F3E3D6;
  --c-bg:#F5F4F0;
  --c-surface:#FFFFFF;
  --c-band:#EDEAE4;
  --c-line:#E3E1DA;
  --c-text:#1A1F20;
  --c-muted:#6B7574;
  --c-warn:#B4472F;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,50,56,.04),0 8px 24px -12px rgba(11,50,56,.12);
  --sh-2:0 2px 4px rgba(11,50,56,.06),0 16px 36px -16px rgba(11,50,56,.20);
  --focus:0 0 0 3px rgba(20,84,91,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",sans-serif;
  --sec-y:96px;
}

*,*::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:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--c-main);text-decoration:none;transition:color .18s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease)}
a:hover{color:var(--c-accent)}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-family:var(--font-serif);font-weight:700;color:var(--c-main-deep);letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:none;box-shadow:var(--focus);border-radius:6px}

.container-x{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}

/* ============ 顶部工具条 ============ */
.topbar{
  background:var(--c-main-deep);
  color:rgba(245,244,240,.84);
  font-size:12.5px;
  letter-spacing:.06em;
  height:36px;
  display:flex;
  align-items:center;
}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%}
.topbar-links{display:flex;gap:22px}
.topbar-links a{color:rgba(245,244,240,.84)}
.topbar-links a:hover{color:var(--c-accent-soft)}

/* ============ 主导航 ============ */
.site-header{position:sticky;top:0;z-index:1030}
.mainnav{
  background:rgba(255,255,255,.97);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s var(--ease);
}
.mainnav.is-shrink{box-shadow:var(--sh-1)}
.nav-inner{
  display:flex;
  align-items:center;
  gap:18px;
  height:76px;
  transition:height .2s var(--ease);
}
.mainnav.is-shrink .nav-inner{height:64px}

.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:var(--c-main);
  color:#F5F4F0;
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-serif);font-weight:700;font-size:17px;
  flex-shrink:0;
}
.brand-text{
  font-family:var(--font-serif);
  font-weight:700;
  font-size:17px;
  color:var(--c-main-deep);
  white-space:nowrap;
  letter-spacing:-.01em;
}
.brand:hover .brand-text{color:var(--c-main)}

.nav-links{display:flex;align-items:center;gap:2px;flex-shrink:0}
.nav-links > li > a{
  display:inline-flex;align-items:center;
  height:38px;
  padding:0 12px;
  border-radius:var(--r-pill);
  font-size:14.5px;
  color:var(--c-text);
  white-space:nowrap;
  transition:background-color .18s var(--ease),color .18s var(--ease);
}
.nav-links > li > a:hover{background:var(--c-band);color:var(--c-main)}
.nav-links > li > a.active{
  background:rgba(20,84,91,.10);
  color:var(--c-main);
  font-weight:600;
}

/* 搜索框 */
.search-wrap{position:relative;flex:1 1 auto;max-width:480px;min-width:180px;margin:0 auto}
.search-form{position:relative;display:flex;align-items:center}
.search-icon{
  position:absolute;left:15px;width:18px;height:18px;
  color:var(--c-muted);pointer-events:none;
}
.search-input{
  width:100%;height:44px;
  padding:0 16px 0 43px;
  border:1px solid var(--c-line);
  border-radius:var(--r-pill);
  background:var(--c-surface);
  font-size:14px;
  color:var(--c-text);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.search-input::placeholder{color:var(--c-muted)}
.search-input:hover{border-color:var(--c-main-soft)}
.search-input:focus{outline:none;border-color:var(--c-main);box-shadow:var(--focus)}

.search-panel{
  position:absolute;top:calc(100% + 10px);left:0;right:0;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-2);
  padding:16px 16px 14px;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .18s var(--ease),transform .18s var(--ease),visibility .18s;
  z-index:20;
}
.search-wrap:hover .search-panel,
.search-wrap:focus-within .search-panel{opacity:1;visibility:visible;transform:translateY(0)}
.panel-label{display:block;font-size:12px;letter-spacing:.06em;color:var(--c-muted);margin-bottom:10px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  display:inline-flex;align-items:center;
  height:28px;padding:0 12px;
  border-radius:var(--r-pill);
  background:rgba(168,199,196,.28);
  color:var(--c-main);
  font-size:12.5px;
  transition:background-color .18s var(--ease),color .18s var(--ease);
}
.chip:hover{background:var(--c-accent-soft);color:var(--c-main)}

/* 按钮 */
.u-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  font-size:15px;font-weight:600;
  cursor:pointer;
  white-space:nowrap;
  transition:background-color .18s var(--ease),color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.u-btn-solid{background:var(--c-main);color:#F5F4F0}
.u-btn-solid:hover{background:var(--c-main-dark2);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.u-btn-solid:active{transform:translateY(0);box-shadow:var(--sh-1)}
.u-btn-ghost{background:var(--c-surface);border-color:var(--c-line);color:var(--c-main)}
.u-btn-ghost:hover{background:var(--c-accent-soft);border-color:var(--c-main);color:var(--c-main);transform:translateY(-1px)}
.u-btn-ghost:active{transform:translateY(0)}
.u-btn-sm{height:40px;padding:0 20px;font-size:14px}
.u-btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

.link-more{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--c-main);font-weight:600;font-size:14px;
  border-bottom:2px solid transparent;
  padding-bottom:2px;
  transition:border-color .16s var(--ease),color .16s var(--ease);
}
.link-more:hover{border-color:var(--c-accent);color:var(--c-main)}
.link-more svg{width:16px;height:16px;stroke-width:1.5}

/* 汉堡 */
.burger{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--c-line);
  border-radius:12px;
  background:var(--c-surface);
  align-items:center;justify-content:center;
  cursor:pointer;
}
.burger span{display:block;width:18px;height:2px;background:var(--c-main-deep);position:relative;border-radius:2px}
.burger span::before,.burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-main-deep);border-radius:2px;
}
.burger span::before{top:-6px}
.burger span::after{top:6px}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,50,56,.42);
  opacity:0;transition:opacity .22s var(--ease);z-index:1040;
}
.drawer-mask.show{opacity:1}
.drawer{
  position:fixed;top:0;right:0;height:100%;
  width:330px;max-width:88vw;
  background:var(--c-surface);
  z-index:1050;
  transform:translateX(100%);
  transition:transform .22s var(--ease);
  padding:22px 22px 32px;
  overflow-y:auto;
  display:flex;flex-direction:column;gap:18px;
  box-shadow:var(--sh-2);
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-close{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--c-line);
  background:var(--c-surface);color:var(--c-main-deep);font-size:22px;line-height:1;
  cursor:pointer;transition:background-color .18s var(--ease),border-color .18s var(--ease);
}
.drawer-close:hover{background:var(--c-band);border-color:var(--c-main-soft)}
.drawer-search{max-width:none;margin:0}
.drawer-links{display:flex;flex-direction:column;gap:4px}
.drawer-links a{
  display:flex;align-items:center;
  min-height:46px;padding:0 14px;
  border-radius:var(--r-md);
  font-size:15px;color:var(--c-text);
}
.drawer-links a:hover{background:var(--c-band);color:var(--c-main)}
.drawer-links a.active{background:rgba(20,84,91,.10);color:var(--c-main);font-weight:600}
.drawer-cta{width:100%}

/* ============ 面包屑 ============ */
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.04em;color:var(--c-muted);
  padding-top:28px;
}
.crumb a{color:var(--c-muted)}
.crumb a:hover{color:var(--c-main)}
.crumb .sep{color:var(--c-line)}
.crumb .current{color:var(--c-main);font-weight:600}

/* ============ Hero ============ */
.hero{padding:26px 0 88px;background:var(--c-bg)}
.hero-grid{
  display:grid;
  grid-template-columns:1.12fr .88fr;
  gap:58px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:28px;padding:0 14px;
  border-radius:var(--r-pill);
  background:rgba(168,199,196,.30);
  color:var(--c-main);
  font-size:12.5px;letter-spacing:.06em;
  margin-bottom:20px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent)}
h1.hero-title{
  font-size:clamp(28px,3.6vw,44px);
  line-height:1.22;
  letter-spacing:-.015em;
  margin-bottom:20px;
}
h1.hero-title em{font-style:normal;color:var(--c-accent)}
.hero-lead{
  font-size:16.5px;
  line-height:1.9;
  color:#2E3A3A;
  max-width:620px;
  margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-bottom:32px}
.hero-facts{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:18px;
  padding-top:26px;
  border-top:1px solid var(--c-line);
}
.hero-facts .fact-num{
  font-family:var(--font-serif);
  font-size:22px;font-weight:700;color:var(--c-main);
  font-variant-numeric:tabular-nums;
  display:block;margin-bottom:4px;
}
.hero-facts .fact-label{font-size:13px;color:var(--c-muted);letter-spacing:.04em}

.hero-media{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1)}
.hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  background:var(--c-band);
  transition:transform .3s var(--ease);
}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,50,56,.10),rgba(11,50,56,.34));
  pointer-events:none;
}

/* ============ 通用板块 ============ */
.section{padding:var(--sec-y) 0}
.section--band{background:var(--c-band)}
.section--surface{background:var(--c-surface)}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head h2{font-size:clamp(22px,2.4vw,32px);line-height:1.3;margin-bottom:14px}
.sec-head p{font-size:15.5px;color:var(--c-muted);line-height:1.85}
.sec-eyebrow{
  display:block;font-size:12.5px;letter-spacing:.08em;
  color:var(--c-accent);font-weight:600;margin-bottom:12px;
}

/* 适用场景卡 */
.scene-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.scene-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:30px 26px 28px;
  box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
  display:flex;flex-direction:column;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.scene-icon{
  width:44px;height:44px;border-radius:12px;
  background:rgba(168,199,196,.30);
  color:var(--c-main);
  display:inline-flex;align-items:center;justify-content:center;
  margin-bottom:18px;
}
.scene-icon svg{width:22px;height:22px;stroke-width:1.5}
.scene-card h3{font-size:19px;margin-bottom:10px}
.scene-card p{font-size:14.5px;color:var(--c-muted);line-height:1.8;margin-bottom:18px}
.scene-card .link-more{margin-top:auto}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;position:relative}
.step{
  position:relative;
  padding:0 22px;
  border-left:1px solid var(--c-line);
}
.step:first-child{border-left:0;padding-left:0}
.step-dot{
  width:12px;height:12px;border-radius:50%;
  background:var(--c-accent);
  display:block;margin-bottom:18px;
  box-shadow:0 0 0 5px rgba(200,118,60,.14);
}
.step-num{
  font-family:var(--font-serif);
  font-size:13px;letter-spacing:.08em;color:var(--c-muted);
  display:block;margin-bottom:8px;
}
.step h3{font-size:18px;margin-bottom:10px;line-height:1.4}
.step p{font-size:14.5px;color:var(--c-muted);line-height:1.8}

/* FAQ 手风琴 */
.faq-wrap{max-width:900px}
.accordion{--bs-accordion-border-width:0;--bs-accordion-bg:transparent;--bs-accordion-btn-focus-box-shadow:none}
.accordion-item{
  background:transparent;
  border:0;
  border-top:1px solid var(--c-line);
}
.accordion-item:last-child{border-bottom:1px solid var(--c-line)}
.accordion-header{margin:0}
.accordion-button{
  background:transparent;
  border:0;
  box-shadow:none;
  padding:22px 48px 22px 0;
  font-family:var(--font-sans);
  font-size:17px;
  font-weight:600;
  color:var(--c-main-deep);
  line-height:1.55;
  transition:color .18s var(--ease);
}
.accordion-button:hover{color:var(--c-main)}
.accordion-button:not(.collapsed){color:var(--c-main);background:transparent;box-shadow:none}
.accordion-button::after{
  content:"";
  position:absolute;right:4px;top:24px;
  width:20px;height:20px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23C8763C' stroke-width='1.5' stroke-linecap='round'%3E%3Cpath d='M12 5v14M5 12h14'/%3E%3C/svg%3E");
  background-size:20px 20px;
  background-repeat:no-repeat;
  transform:none;
  transition:transform .16s var(--ease);
}
.accordion-button:not(.collapsed)::after{transform:rotate(45deg)}
.accordion-body{
  background:var(--c-band);
  border-radius:var(--r-sm);
  padding:20px 22px;
  font-size:15px;
  line-height:1.9;
  color:#2E3A3A;
  margin-bottom:22px;
}

/* 对照表 */
.table-scroll{
  overflow-x:auto;
  background:var(--c-surface);
  border-radius:var(--r-md);
  border:1px solid var(--c-line);
  box-shadow:var(--sh-1);
}
.compare-table{
  width:100%;
  min-width:720px;
  border-collapse:collapse;
  font-size:14.5px;
}
.compare-table thead th{
  text-align:left;
  font-family:var(--font-sans);
  font-weight:600;
  font-size:13px;
  letter-spacing:.06em;
  color:var(--c-muted);
  padding:20px 22px 14px;
  border-bottom:1px solid var(--c-main-soft);
  white-space:nowrap;
}
.compare-table tbody td{
  padding:18px 22px;
  border-bottom:1px solid var(--c-line);
  vertical-align:top;
  line-height:1.75;
}
.compare-table tbody tr:last-child td{border-bottom:0}
.compare-table tbody tr:hover{background:rgba(168,199,196,.14)}
.compare-table td:first-child{
  font-weight:600;
  color:var(--c-main-deep);
  white-space:nowrap;
}
.table-note{font-size:13px;color:var(--c-muted);margin-top:16px;letter-spacing:.04em}

/* 提示条 */
.notice{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-left:3px solid var(--c-accent);
  border-radius:var(--r-sm);
  padding:18px 22px;
  font-size:14.5px;
  color:#2E3A3A;
  line-height:1.8;
  box-shadow:var(--sh-1);
}
.notice svg{width:20px;height:20px;flex-shrink:0;color:var(--c-accent);stroke-width:1.5;margin-top:3px}

/* CTA 条 */
.cta-band{
  background:var(--c-main);
  color:#F5F4F0;
  padding:64px 0;
  border-radius:0;
}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:36px;flex-wrap:wrap;
}
.cta-band h2{color:#F5F4F0;font-size:clamp(22px,2.4vw,30px);margin-bottom:12px}
.cta-band p{color:rgba(245,244,240,.82);font-size:15.5px;max-width:640px;line-height:1.85}
.cta-band .u-btn-solid{background:#F5F4F0;color:var(--c-main-deep)}
.cta-band .u-btn-solid:hover{background:#fff;color:var(--c-main-deep)}
.cta-band .link-more{color:#F5F4F0}
.cta-band .link-more:hover{color:#fff}

/* 表单 */
.form-panel{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  padding:32px;
  box-shadow:var(--sh-1);
}
.field{margin-bottom:18px}
.field label{
  display:block;font-size:13.5px;font-weight:600;
  color:var(--c-main-deep);margin-bottom:8px;letter-spacing:.02em;
}
.field .control{
  width:100%;height:44px;
  padding:0 14px;
  border:1px solid var(--c-line);
  border-radius:var(--r-sm);
  background:var(--c-surface);
  font-size:14.5px;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
textarea.control{height:auto;padding:12px 14px;resize:vertical;min-height:96px;line-height:1.7}
.field .control::placeholder{color:var(--c-muted)}
.field .control:hover{border-color:var(--c-main-soft)}
.field .control:focus{outline:none;border-color:var(--c-main);box-shadow:var(--focus)}
.field .control.is-error{border-color:var(--c-warn);box-shadow:0 0 0 3px rgba(180,71,47,.12)}
.field .err{display:none;font-size:13px;color:var(--c-warn);margin-top:6px}
.field.has-error .err{display:block}
.form-hint{font-size:13px;color:var(--c-muted);line-height:1.75;margin-top:14px}
.form-ok{
  display:none;
  margin-top:16px;padding:12px 16px;
  border-radius:var(--r-sm);
  background:rgba(168,199,196,.24);
  color:var(--c-main);font-size:14px;
}
.form-ok.show{display:block}
.privacy-line{
  display:flex;gap:10px;align-items:flex-start;
  font-size:13px;color:var(--c-muted);line-height:1.75;margin-top:16px;
}
.privacy-line input{margin-top:4px;width:16px;height:16px;accent-color:var(--c-main);flex-shrink:0}
.privacy-line a{border-bottom:1px solid var(--c-main-soft)}

/* 悬浮入口 */
.float-entry{
  position:fixed;right:22px;bottom:26px;z-index:1020;
  display:inline-flex;align-items:center;gap:8px;
  height:48px;padding:0 22px;
  border:0;border-radius:var(--r-pill);
  background:var(--c-accent);
  color:#fff;font-size:14.5px;font-weight:600;
  cursor:pointer;
  box-shadow:var(--sh-2);
  transition:background-color .18s var(--ease),transform .18s var(--ease);
}
.float-entry:hover{background:#B76A34;transform:translateY(-2px)}
.float-entry svg{width:18px;height:18px;stroke-width:1.6}

/* 回到顶部 */
.to-top{
  position:fixed;right:22px;bottom:86px;z-index:1020;
  width:44px;height:44px;border-radius:50%;
  border:1px solid var(--c-line);
  background:var(--c-surface);
  color:var(--c-main);
  display:none;align-items:center;justify-content:center;
  cursor:pointer;box-shadow:var(--sh-1);
  transition:background-color .18s var(--ease),transform .18s var(--ease);
}
.to-top.show{display:inline-flex}
.to-top:hover{background:var(--c-band);transform:translateY(-2px)}
.to-top svg{width:18px;height:18px;stroke-width:1.5}

/* Modal */
.modal-content{
  border:0;
  border-radius:var(--r-lg);
  box-shadow:var(--sh-2);
  padding:8px;
  background:var(--c-surface);
}
.modal-header{border-bottom:1px solid var(--c-line);padding:20px 22px}
.modal-title{font-family:var(--font-serif);font-size:20px;color:var(--c-main-deep)}
.modal-body{padding:22px}
.modal-footer{border-top:1px solid var(--c-line);padding:16px 22px}
.btn-close{--bs-btn-close-focus-shadow:var(--focus)}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-main-deep);color:rgba(245,244,240,.78);padding:72px 0 0}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:44px;
  padding-bottom:44px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand .brand-mark{background:rgba(245,244,240,.12);color:#F5F4F0}
.footer-brand .bname{
  font-family:var(--font-serif);font-weight:700;font-size:17px;color:#F5F4F0;
}
.footer-about{font-size:14px;line-height:1.9;color:rgba(245,244,240,.68);max-width:340px}
.footer-title{font-family:var(--font-sans);font-size:14px;font-weight:600;color:#F5F4F0;margin-bottom:16px;letter-spacing:.04em}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:rgba(245,244,240,.72);line-height:2}
.footer-links a:hover{color:var(--c-accent-soft)}
.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:14px;line-height:1.85;color:rgba(245,244,240,.72)}
.footer-contact b{color:#F5F4F0;font-weight:600}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  border-top:1px solid rgba(245,244,240,.16);
  padding:22px 0;
  font-size:13px;
  color:rgba(245,244,240,.58);
  letter-spacing:.02em;
}

/* ============ 响应式 ============ */
@media (max-width:1399px){
  .container-x{max-width:1180px}
}
@media (max-width:1199px){
  :root{--sec-y:72px}
  .nav-links > li > a{padding:0 9px;font-size:14px}
  .search-wrap{max-width:360px}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px 0}
  .step:nth-child(3){border-left:0;padding-left:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:991px){
  .topbar{display:none}
  .nav-links,.nav-search,.nav-cta{display:none}
  .burger{display:inline-flex}
  .nav-inner{height:64px;gap:12px}
  .brand-text{font-size:16px}
  .hero{padding:18px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media{order:2}
  .hero-facts{grid-template-columns:repeat(3,minmax(0,1fr))}
  .cta-inner{flex-direction:column;align-items:flex-start}
}
@media (max-width:767px){
  :root{--sec-y:56px}
  .container-x{padding:0 20px}
  body{font-size:15.5px;line-height:1.8}
  .scene-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr;gap:28px}
  .step{border-left:0;padding-left:0}
  .hero-facts{grid-template-columns:1fr;gap:14px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .form-panel{padding:22px}
  .float-entry{right:16px;bottom:18px;height:44px;padding:0 18px;font-size:14px}
  .to-top{right:16px;bottom:74px}
  .accordion-button{font-size:16px;padding:20px 44px 20px 0}
}
@media (max-width:575px){
  h1.hero-title{font-size:26px}
  .hero-actions .u-btn{width:100%}
  .cta-band{padding:48px 0}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important}
  .scene-card:hover,.u-btn:hover,.float-entry:hover,.to-top:hover{transform:none}
}