/* roulang page: index */
:root{
  --c-primary:#0F4C4A;
  --c-primary-2:#16A79B;
  --c-accent:#FF6B2C;
  --c-bg:#F4F7F7;
  --c-bg-2:#E7EEEE;
  --c-surface:#FFFFFF;
  --c-dark:#082A2C;
  --c-on-dark:#D6E4E3;
  --c-ink:#0B1618;
  --c-ink-2:#4A5A5C;
  --c-ink-3:#7C8B8C;
  --c-line:#D8E2E2;
  --r-card:14px;
  --r-input:10px;
  --r-btn:999px;
  --r-badge:6px;
  --shadow-1:0 1px 2px rgba(11,22,24,.06), 0 8px 24px -14px rgba(11,22,24,.18);
  --shadow-2:0 2px 4px rgba(11,22,24,.08), 0 18px 40px -20px rgba(11,22,24,.28);
  --font-cn:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink-2);
  background:var(--c-bg);
  letter-spacing:0;
}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-family:var(--font-cn);letter-spacing:-0.015em;}
h1{font-size:clamp(30px,4.4vw,54px);line-height:1.15;font-weight:800;}
h2{font-size:clamp(24px,2.6vw,34px);line-height:1.25;font-weight:700;}
h3{font-size:20px;line-height:1.4;font-weight:600;}
p{margin:0 0 16px;}
a{color:var(--c-primary-2);text-decoration:none;transition:color .16s ease;}
a:hover,a:focus{color:var(--c-primary);}
img{max-width:100%;display:block;}
button,input{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-primary-2);outline-offset:2px;}
ul{margin:0;padding:0;list-style:none;}

/* ---------- Foundation 覆盖 ---------- */
.grid-container{max-width:1240px;padding-left:20px;padding-right:20px;}
@media screen and (min-width:1024px){
  .grid-container{padding-left:32px;padding-right:32px;}
}
.button,button{font-family:var(--font-cn);}
.button{background:var(--c-accent);color:#fff;border-radius:var(--r-btn);}
.button:hover,.button:focus{background:#e85c1f;color:#fff;}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s ease,background .2s ease;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.82);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  box-shadow:0 6px 20px -14px rgba(11,22,24,.4);
}
.header-top-inner{
  display:flex;align-items:center;gap:20px;
  min-height:76px;transition:min-height .2s ease;
}
.site-header.is-scrolled .header-top-inner{min-height:60px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{width:6px;height:30px;border-radius:3px;background:var(--c-primary);}
.brand-text{
  font-size:20px;font-weight:800;color:var(--c-ink);
  letter-spacing:-0.03em;line-height:1.1;display:flex;flex-direction:column;
}
.brand-sub{
  font-size:11px;font-weight:500;color:var(--c-ink-3);
  letter-spacing:.06em;margin-top:3px;
}
.search-box{
  flex:1 1 auto;max-width:400px;display:flex;align-items:center;
  background:var(--c-bg-2);border:1px solid transparent;border-radius:var(--r-btn);
  padding:0 6px 0 16px;height:42px;transition:border-color .16s ease,background .16s ease;
}
.search-box:focus-within{border-color:var(--c-primary-2);background:#fff;}
.search-box input{
  flex:1;border:0;background:transparent;height:40px;font-size:14px;color:var(--c-ink);
  outline:none;margin:0;
}
.search-box input::placeholder{color:var(--c-ink-3);}
.search-box button{
  border:0;background:var(--c-primary);color:#fff;width:32px;height:32px;border-radius:50%;
  cursor:pointer;font-size:13px;display:grid;place-items:center;transition:background .16s ease;
}
.search-box button:hover{background:var(--c-primary-2);}
.header-side{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.hot-tag{
  font-size:12px;padding:4px 10px;border-radius:var(--r-badge);
  border:1px solid var(--c-line);color:var(--c-ink-2);background:#fff;
  transition:border-color .16s ease,color .16s ease;
}
.hot-tag:hover{border-color:var(--c-primary-2);color:var(--c-primary);}
.header-cta{
  font-size:13px;font-weight:600;color:#fff;background:var(--c-primary);
  padding:9px 18px;border-radius:var(--r-btn);transition:background .16s ease;
}
.header-cta:hover{background:var(--c-primary-2);color:#fff;}
.menu-toggle{
  display:none;width:42px;height:38px;border:1px solid var(--c-line);background:#fff;
  border-radius:var(--r-input);cursor:pointer;position:relative;
}
.menu-toggle span,.menu-toggle::before,.menu-toggle::after{
  content:"";position:absolute;left:11px;width:20px;height:2px;background:var(--c-ink);border-radius:2px;
  transition:transform .2s ease,opacity .2s ease;
}
.menu-toggle::before{top:12px;}
.menu-toggle span{top:18px;}
.menu-toggle::after{top:24px;}
.menu-toggle.is-open::before{transform:translateY(6px) rotate(45deg);}
.menu-toggle.is-open span{opacity:0;}
.menu-toggle.is-open::after{transform:translateY(-6px) rotate(-45deg);}

.header-bottom{border-top:1px solid var(--c-line);background:transparent;}
.site-header.is-scrolled .header-bottom{border-color:transparent;}
.channel-row{display:flex;align-items:center;gap:26px;min-height:52px;}
.channel-link{
  position:relative;font-size:15px;color:var(--c-ink-2);padding:14px 0;white-space:nowrap;
  transition:color .16s ease;
}
.channel-link::after{
  content:"";position:absolute;left:0;right:0;bottom:8px;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.channel-link:hover{color:var(--c-primary);}
.channel-link:hover::after{transform:scaleX(1);}
.channel-link.is-active{color:var(--c-primary);font-weight:600;}
.channel-link.is-active::after{transform:scaleX(1);}
.channel-spacer{flex:1;}
.channel-mini{font-size:13px;color:var(--c-ink-3);white-space:nowrap;}
.channel-mini:hover{color:var(--c-accent);}

@media screen and (max-width:1023px){
  .header-side .hot-tag{display:none;}
  .menu-toggle{display:block;margin-left:auto;}
  .search-box{display:none;}
  .header-side{margin-left:auto;}
  .header-bottom{
    position:fixed;inset:0;background:rgba(8,42,44,.97);border:0;
    padding:88px 0 0;transform:translateY(-100%);opacity:0;pointer-events:none;
    transition:transform .26s ease,opacity .26s ease;overflow-y:auto;
  }
  .header-bottom.is-open{transform:translateY(0);opacity:1;pointer-events:auto;}
  .channel-row{flex-direction:column;align-items:stretch;gap:0;min-height:auto;}
  .channel-link{
    color:var(--c-on-dark);font-size:17px;padding:0 20px;line-height:52px;
    border-bottom:1px solid rgba(214,228,227,.14);display:flex;align-items:center;justify-content:space-between;
  }
  .channel-link::after{display:none;}
  .channel-link::before{content:"\f054";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;color:var(--c-primary-2);order:2;}
  .channel-link:hover,.channel-link.is-active{color:var(--c-accent);background:rgba(255,255,255,.04);}
  .channel-spacer{display:none;}
  .channel-mini{color:var(--c-on-dark);padding:20px;line-height:52px;}
}

/* ---------- 倒计时条 ---------- */
.countdown-bar{background:var(--c-dark);color:var(--c-on-dark);padding:10px 0;}
.cd-inner{display:flex;align-items:center;gap:18px;flex-wrap:wrap;min-height:36px;}
.cd-label{font-size:14px;color:var(--c-on-dark);display:flex;align-items:center;gap:8px;}
.cd-label::before{
  content:"";width:7px;height:7px;border-radius:50%;background:var(--c-accent);
  box-shadow:0 0 0 4px rgba(255,107,44,.18);
}
.cd-timer{display:flex;align-items:center;gap:0;margin-left:auto;}
.cd-unit{display:flex;align-items:baseline;gap:4px;padding:0 14px;border-left:1px solid rgba(214,228,227,.18);}
.cd-unit:first-child{border-left:0;}
.cd-unit b{
  font-family:var(--mono);font-size:22px;font-weight:700;color:var(--c-accent);
  font-variant-numeric:tabular-nums;
}
.cd-unit i{font-style:normal;font-size:12px;color:var(--c-on-dark);opacity:.75;}
.cd-cta{
  font-size:13px;font-weight:600;color:#fff;background:var(--c-accent);
  padding:8px 18px;border-radius:var(--r-btn);transition:background .16s ease,transform .16s ease;
}
.cd-cta:hover{background:#e85c1f;color:#fff;transform:translateY(-1px);}
@media screen and (max-width:767px){
  .cd-label{width:100%;font-size:13px;}
  .cd-timer{margin-left:0;}
  .cd-unit{padding:0 10px;}
  .cd-unit b{font-size:18px;}
  .cd-cta{margin-left:auto;}
}

/* ---------- 通用板块 ---------- */
.section{padding:clamp(56px,8vw,112px) 0;position:relative;overflow:hidden;}
.section--alt{background:var(--c-bg-2);}
.section--dark{background:var(--c-dark);color:var(--c-on-dark);}
.section--dark h2,.section--dark h3{color:#fff;}
.section-head{display:flex;align-items:center;gap:16px;margin-bottom:36px;}
.section-head h2{flex:0 0 auto;}
.head-line{flex:1;height:1px;background:var(--c-line);}
.section--dark .head-line{background:rgba(214,228,227,.2);}
.head-tag{
  font-family:var(--mono);font-size:12px;letter-spacing:.14em;color:var(--c-ink-3);
  text-transform:uppercase;white-space:nowrap;
}
.section--dark .head-tag{color:var(--c-primary-2);}
.section-index{
  position:absolute;right:20px;top:32px;font-size:clamp(64px,9vw,96px);font-weight:800;
  color:transparent;-webkit-text-stroke:1px rgba(11,22,24,.14);
  font-family:var(--mono);line-height:1;pointer-events:none;
}
.section--dark .section-index{-webkit-text-stroke:1px rgba(214,228,227,.14);}
.section-lead{max-width:760px;font-size:16px;color:var(--c-ink-2);line-height:1.9;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  cursor:pointer;border:1px solid transparent;transition:background .16s ease,color .16s ease,border-color .16s ease,transform .16s ease;
}
.btn:active{transform:translateY(1px);}
.btn--primary{background:var(--c-accent);color:#fff;}
.btn--primary:hover{background:#e85c1f;color:#fff;}
.btn--ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary);}
.btn--ghost:hover{background:rgba(15,76,74,.08);color:var(--c-primary);}
.btn--light{background:transparent;color:#fff;border-color:rgba(255,255,255,.4);}
.btn--light:hover{background:rgba(255,255,255,.1);color:#fff;}

/* ---------- Hero ---------- */
.hero{
  position:relative;padding:clamp(48px,6vw,76px) 0 clamp(48px,6vw,88px);
  background:
    linear-gradient(120deg,rgba(22,167,155,.05) 0%,rgba(244,247,247,0) 55%),
    repeating-linear-gradient(115deg,rgba(15,76,74,.045) 0 1px,transparent 1px 22px),
    var(--c-bg);
  min-height:clamp(520px,62vh,720px);
  display:flex;align-items:center;
}
.hero-copy{max-width:600px;}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--c-primary);
  background:rgba(22,167,155,.12);border-radius:var(--r-badge);padding:5px 12px;margin-bottom:20px;
}
.hero h1{margin-bottom:18px;}
.hero h1 em{font-style:normal;color:var(--c-primary);}
.hero-sub{font-size:17px;color:var(--c-ink-2);line-height:1.85;margin-bottom:28px;max-width:540px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-2);
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-badge);padding:6px 12px;
}
.hero-badge i{color:var(--c-primary-2);font-size:12px;}
.hero-media{position:relative;}
.hero-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-card);
  background:var(--c-bg-2);box-shadow:var(--shadow-2);
}
.hero-float{
  position:absolute;right:-8px;bottom:-18px;background:#fff;border-radius:var(--r-card);
  box-shadow:var(--shadow-2);padding:16px 20px;min-width:210px;border:1px solid var(--c-line);
}
.hero-float span{display:block;font-size:12px;color:var(--c-ink-3);margin-bottom:4px;}
.hero-float b{font-family:var(--mono);font-size:26px;color:var(--c-primary);font-weight:700;}
.hero-float em{font-style:normal;font-size:12px;color:var(--c-primary-2);margin-left:6px;font-family:var(--mono);}
@media screen and (max-width:1023px){
  .hero{min-height:auto;padding-top:40px;}
  .hero-media{margin-top:36px;}
  .hero-float{right:8px;bottom:-16px;}
}
@media screen and (max-width:520px){
  .hero-float{position:static;margin-top:14px;min-width:0;}
}

/* ---------- 卖点：粘性标题 + 编号长条 ---------- */
.feature-wrap{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:56px;align-items:start;}
.feature-sticky{position:sticky;top:96px;}
.feature-sticky h2{margin-bottom:14px;}
.feature-sticky p{font-size:15px;color:var(--c-ink-2);margin-bottom:22px;}
.feature-sticky .tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  font-size:12px;padding:4px 10px;border-radius:var(--r-badge);
  background:rgba(22,167,155,.12);color:var(--c-primary);
}
.tag--outline{background:transparent;border:1px solid var(--c-line);color:var(--c-ink-2);}
.feature-list{border-top:1px solid var(--c-line);}
.feature-item{
  display:grid;grid-template-columns:72px minmax(0,1fr);gap:20px;
  padding:26px 16px 26px 0;border-bottom:1px solid var(--c-line);position:relative;
  transition:background .18s ease,padding .18s ease;
}
.feature-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--c-primary);
  transform:scaleY(0);transform-origin:top;transition:transform .18s ease;
}
.feature-item:hover{background:var(--c-bg-2);padding-left:16px;}
.feature-item:hover::before{transform:scaleY(1);}
.feature-num{
  font-family:var(--mono);font-size:40px;font-weight:700;line-height:1;
  color:transparent;-webkit-text-stroke:1.2px var(--c-primary-2);
}
.feature-item h3{margin-bottom:8px;}
.feature-item p{margin:0;font-size:15px;color:var(--c-ink-2);line-height:1.8;}
@media screen and (max-width:1023px){
  .feature-wrap{grid-template-columns:1fr;gap:28px;}
  .feature-sticky{position:static;}
}

/* ---------- 图墙 ---------- */
.gallery{display:grid;grid-template-columns:repeat(12,1fr);gap:16px;}
.gal-item{
  position:relative;overflow:hidden;border-radius:var(--r-card);height:200px;
  background:var(--c-bg-2);margin:0;
}
.gal-item.g-6{grid-column:span 6;height:240px;}
.gal-item.g-4{grid-column:span 4;}
.gal-item.g-3{grid-column:span 3;}
.gal-item.g-5{grid-column:span 5;height:220px;}
.gal-item img{width:100%;height:100%;object-fit:cover;transition:transform .32s cubic-bezier(.2,.7,.3,1);}
.gal-item::after{
  content:"";position:absolute;inset:auto 0 0 0;height:52%;
  background:linear-gradient(to top,rgba(8,42,44,.78),rgba(8,42,44,0));
  opacity:0;transition:opacity .24s ease;
}
.gal-item figcaption{
  position:absolute;left:16px;right:16px;bottom:12px;z-index:2;
  color:#fff;font-size:15px;line-height:1.5;opacity:0;transform:translateY(8px);
  transition:opacity .24s ease,transform .24s ease;
}
.gal-item:hover img{transform:scale(1.03);}
.gal-item:hover::after,.gal-item:hover figcaption{opacity:1;}
.gal-item:hover figcaption{transform:translateY(0);}
@media screen and (max-width:767px){
  .gallery{grid-template-columns:repeat(2,1fr);}
  .gal-item,.gal-item.g-6,.gal-item.g-4,.gal-item.g-3,.gal-item.g-5{grid-column:span 1;height:150px;}
}

/* ---------- 资讯列表（CMS 区） ---------- */
.news-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:24px;align-items:start;min-height:420px;}
.card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);overflow:hidden;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-2px);border-color:var(--c-primary-2);box-shadow:var(--shadow-2);}
.card-cover{background:var(--c-bg-2);overflow:hidden;display:block;}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.card:hover .card-cover img{transform:scale(1.02);}
.card-body{padding:22px 24px 20px;}
.badge{
  display:inline-block;font-size:12px;padding:4px 10px;border-radius:var(--r-badge);
  background:rgba(22,167,155,.14);color:var(--c-primary);margin-bottom:12px;
}
.card h3{font-size:19px;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card .excerpt{
  font-size:14.5px;color:var(--c-ink-2);margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.meta{
  display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--c-ink-3);
  border-top:1px solid var(--c-line);padding-top:14px;
}
.meta .num{font-family:var(--mono);font-variant-numeric:tabular-nums;}
.meta .dot{width:3px;height:3px;border-radius:50%;background:var(--c-line);}
.meta .more{margin-left:auto;color:var(--c-primary-2);font-weight:600;}
.card--lead .card-cover{aspect-ratio:16/9;}
.card--lead h3{font-size:23px;}
.card--lead .excerpt{-webkit-line-clamp:3;font-size:15px;}
.news-side{display:flex;flex-direction:column;gap:16px;}
.card--mini{display:grid;grid-template-columns:112px minmax(0,1fr);gap:0;}
.card--mini .card-cover{aspect-ratio:1/1;height:100%;}
.card--mini .card-body{padding:16px 18px;}
.card--mini h3{font-size:16px;margin-bottom:8px;}
.card--mini .excerpt{font-size:13.5px;-webkit-line-clamp:2;margin-bottom:10px;}
.card--mini .meta{padding-top:10px;border:0;}
.card--mini .meta .more{display:none;}
.empty-state{
  min-height:220px;border:1px dashed var(--c-line);border-radius:var(--r-card);
  background:var(--c-surface);display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:12px;color:var(--c-ink-3);font-size:15px;text-align:center;padding:32px;
}
.empty-state i{font-size:26px;color:var(--c-primary-2);}
@media screen and (max-width:1023px){
  .news-grid{grid-template-columns:1fr;}
}
@media screen and (max-width:520px){
  .card--mini{grid-template-columns:96px minmax(0,1fr);}
}

/* ---------- CTA 表单 ---------- */
.cta-band .grid-container{position:relative;z-index:2;}
.cta-layout{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,6fr);gap:48px;align-items:center;}
.cta-layout h2{color:#fff;margin-bottom:14px;}
.cta-layout p{color:var(--c-on-dark);font-size:15.5px;margin:0;}
.form-card{
  background:#fff;border-radius:var(--r-card);padding:28px;box-shadow:var(--shadow-2);
}
.form-row{margin-bottom:16px;}
.form-row label{display:block;font-size:13px;color:var(--c-ink-2);margin-bottom:8px;}
.form-row input{
  width:100%;height:48px;border-radius:var(--r-input);border:1px solid var(--c-line);
  padding:0 14px;font-size:15px;color:var(--c-ink);background:var(--c-bg);outline:none;
  transition:border-color .16s ease,box-shadow .16s ease,background .16s ease;margin:0;
}
.form-row input:focus{border-color:var(--c-primary-2);background:#fff;box-shadow:0 0 0 3px rgba(22,167,155,.18);}
.form-card .btn{width:100%;}
.form-note{font-size:12.5px;color:var(--c-ink-3);margin:12px 0 0;line-height:1.7;}
@media screen and (max-width:1023px){
  .cta-layout{grid-template-columns:1fr;gap:28px;}
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  margin-bottom:12px;overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item[open]{border-color:var(--c-primary-2);box-shadow:var(--shadow-1);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 24px;font-size:17px;font-weight:600;color:var(--c-ink);
  display:flex;align-items:center;gap:14px;position:relative;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--c-accent);
  transform:scaleY(0);transform-origin:top;transition:transform .2s ease;
}
.faq-item[open] summary::before{transform:scaleY(1);}
.faq-item summary::after{
  content:"+";margin-left:auto;font-family:var(--mono);font-size:20px;font-weight:600;
  color:var(--c-primary-2);line-height:1;transition:transform .2s ease;
}
.faq-item[open] summary::after{content:"−";}
.faq-body{padding:0 24px 22px;font-size:15.5px;color:var(--c-ink-2);line-height:1.85;}
.faq-body p:last-child{margin-bottom:0;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-dark);color:var(--c-on-dark);padding:clamp(48px,6vw,72px) 0 24px;}
.footer-grid{display:grid;grid-template-columns:minmax(0,4fr) repeat(3,minmax(0,2.6fr));gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--c-primary-2);}
.footer-brand .brand-text{color:#fff;}
.footer-brand .brand-sub{color:var(--c-on-dark);opacity:.7;}
.site-footer p{color:var(--c-on-dark);font-size:14px;line-height:1.9;opacity:.85;margin-bottom:14px;}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:var(--c-on-dark);font-size:14px;line-height:2;}
.footer-col a:hover{color:var(--c-accent);}
.footer-col .num{font-family:var(--mono);font-variant-numeric:tabular-nums;}
.footer-bottom{
  border-top:1px solid rgba(214,228,227,.16);margin-top:40px;padding-top:20px;
  display:flex;flex-wrap:wrap;gap:12px;font-size:12.5px;color:var(--c-on-dark);opacity:.75;
}
.footer-bottom span:last-child{margin-left:auto;}
@media screen and (max-width:1023px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
}
@media screen and (max-width:520px){
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom span:last-child{margin-left:0;}
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s cubic-bezier(.2,.7,.3,1),transform .42s cubic-bezier(.2,.7,.3,1);}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}
@media screen and (max-width:479px){
  .section{padding:40px 0;}
  .card,.gal-item,.form-card{border-radius:12px;}
  h1{font-size:clamp(28px,8vw,34px);}
}

/* roulang page: article */
:root{
  --c-primary:#0F4C4A;
  --c-primary-2:#16A79B;
  --c-accent:#FF6B2C;
  --c-bg:#F4F7F7;
  --c-bg-2:#E7EEEE;
  --c-surface:#FFFFFF;
  --c-dark:#082A2C;
  --c-on-dark:#D6E4E3;
  --c-ink:#0B1618;
  --c-ink-2:#4A5A5C;
  --c-ink-3:#7C8B8C;
  --c-line:#D8E2E2;
  --r-card:14px;
  --r-input:10px;
  --r-pill:999px;
  --r-badge:6px;
  --shadow-1:0 1px 2px rgba(11,22,24,.06), 0 8px 24px -14px rgba(11,22,24,.18);
  --shadow-2:0 2px 4px rgba(11,22,24,.08), 0 18px 40px -20px rgba(11,22,24,.28);
  --sect-py:clamp(56px, 8vw, 112px);
  --mono:ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--c-ink-2);
  background:var(--c-bg);
  text-align:left;
  word-break:break-word;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-primary-2);text-decoration:none;transition:color .16s ease, border-color .16s ease, background-color .16s ease;}
a:hover{color:var(--c-accent);}
button,input{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-primary-2);outline-offset:2px;}
.num{font-family:var(--mono);font-weight:600;font-variant-numeric:tabular-nums;letter-spacing:0;}
h1,h2,h3,h4{color:var(--c-ink);margin:0;letter-spacing:-.015em;line-height:1.25;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.grid-container{max-width:1240px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media screen and (min-width:1024px){
  .grid-container{padding-left:32px;padding-right:32px;}
}
/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);padding:14px 28px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all .16s ease;line-height:1;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 10px 24px -14px rgba(255,107,44,.85);}
.btn-primary:hover{background:#ef5c1c;color:#fff;}
.btn-ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary);}
.btn-ghost:hover{background:rgba(15,76,74,.08);color:var(--c-primary);}
.btn-cyan{background:var(--c-primary-2);color:#fff;}
.btn-cyan:hover{background:#12968c;color:#fff;}
.btn-sm{padding:10px 20px;font-size:14px;}
/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-block;border-radius:var(--r-badge);padding:4px 10px;
  font-size:12.5px;line-height:1.5;background:rgba(22,167,155,.12);
  color:var(--c-primary);font-weight:600;
}
.tag{
  display:inline-block;border-radius:var(--r-badge);padding:4px 10px;
  font-size:12.5px;line-height:1.5;border:1px solid var(--c-line);color:var(--c-ink-2);
  background:var(--c-surface);transition:all .16s ease;
}
.tag:hover{border-color:var(--c-primary-2);color:var(--c-primary);}
/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;background:#fff;
  border-bottom:1px solid var(--c-line);
  transition:background .24s ease, box-shadow .24s ease;
}
.site-header.is-stuck{background:rgba(255,255,255,.9);backdrop-filter:blur(10px);box-shadow:0 8px 24px -20px rgba(11,22,24,.5);}
.top-row{display:flex;align-items:center;gap:20px;min-height:78px;transition:min-height .24s ease;}
.site-header.is-stuck .top-row{min-height:60px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{width:6px;height:30px;border-radius:3px;background:linear-gradient(180deg,var(--c-primary-2),var(--c-primary));display:inline-block;}
.brand-text{display:flex;flex-direction:column;line-height:1.1;font-weight:800;font-size:20px;color:var(--c-ink);letter-spacing:-.02em;}
.brand-sub{font-size:11.5px;font-weight:500;color:var(--c-ink-3);letter-spacing:.04em;margin-top:3px;}
.search-box{
  flex:1 1 auto;max-width:420px;display:flex;align-items:center;gap:8px;
  background:var(--c-bg-2);border:1px solid transparent;border-radius:var(--r-pill);
  padding:4px 4px 4px 16px;transition:all .16s ease;
}
.search-box:focus-within{background:#fff;border-color:var(--c-primary-2);box-shadow:0 0 0 3px rgba(22,167,155,.14);}
.search-box i{color:var(--c-ink-3);font-size:14px;}
.search-box input{border:0;background:transparent;flex:1 1 auto;height:38px;font-size:14px;color:var(--c-ink);outline:none;min-width:60px;}
.search-box input::placeholder{color:var(--c-ink-3);}
.search-box button{
  border:0;border-radius:var(--r-pill);background:var(--c-primary);color:#fff;
  height:36px;padding:0 20px;font-size:14px;font-weight:600;cursor:pointer;transition:background .16s ease;
}
.search-box button:hover{background:var(--c-primary-2);}
.hotwords{display:flex;align-items:center;gap:8px;flex:0 0 auto;}
.hotword{
  border:1px solid var(--c-line);border-radius:var(--r-badge);padding:4px 10px;
  font-size:12.5px;color:var(--c-ink-2);background:#fff;white-space:nowrap;transition:all .16s ease;
}
.hotword:hover{border-color:var(--c-primary-2);color:var(--c-primary);background:rgba(22,167,155,.08);}
.top-action{
  flex:0 0 auto;font-size:14px;font-weight:600;color:var(--c-primary);
  border:1px solid var(--c-line);border-radius:var(--r-pill);padding:9px 18px;transition:all .16s ease;
}
.top-action:hover{border-color:var(--c-primary-2);background:rgba(22,167,155,.08);color:var(--c-primary);}
.nav-toggle{
  display:none;flex:0 0 auto;background:transparent;border:1px solid var(--c-line);
  border-radius:var(--r-badge);width:42px;height:42px;color:var(--c-ink);cursor:pointer;
}
.channel-row{
  display:flex;align-items:center;gap:4px;border-top:1px solid var(--c-line);
  overflow-x:auto;overflow-y:hidden;scrollbar-width:none;
}
.channel-row::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;display:inline-block;padding:14px 12px;font-size:15px;
  color:var(--c-ink-2);font-weight:500;white-space:nowrap;
}
.channel-link:hover{color:var(--c-primary);}
.channel-link.is-active{color:var(--c-primary);font-weight:600;}
.channel-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;
  background:var(--c-primary-2);border-radius:2px;
}
.channel-spacer{flex:1 1 auto;}
.channel-mini{padding:14px 12px;font-size:14px;color:var(--c-ink-3);white-space:nowrap;}
.channel-mini:hover{color:var(--c-primary);}
.mobile-panel{
  position:fixed;inset:0;z-index:120;background:#fff;padding:0 0 40px;
  transform:translateY(-10px);opacity:0;visibility:hidden;
  transition:opacity .24s ease, transform .24s ease, visibility .24s;overflow-y:auto;
}
.mobile-panel.is-open{transform:translateY(0);opacity:1;visibility:visible;}
.mobile-panel-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--c-line);}
.mobile-panel-close{background:transparent;border:1px solid var(--c-line);border-radius:var(--r-badge);width:40px;height:40px;color:var(--c-ink);cursor:pointer;}
.mobile-link{
  display:flex;align-items:center;justify-content:space-between;height:52px;
  padding:0 20px;border-bottom:1px solid var(--c-line);color:var(--c-ink-2);font-size:16px;
}
.mobile-link:hover{background:var(--c-bg);color:var(--c-primary);}
.mobile-link.is-active{color:var(--c-primary);font-weight:600;}
.mobile-link i{color:var(--c-ink-3);font-size:13px;}
/* ============ 面包屑 ============ */
.crumb-bar{background:var(--c-surface);border-bottom:1px solid var(--c-line);}
.crumb{
  display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-3);
  padding:14px 0;overflow-x:auto;white-space:nowrap;scrollbar-width:none;
}
.crumb::-webkit-scrollbar{display:none;}
.crumb a{color:var(--c-ink-3);}
.crumb a:hover{color:var(--c-primary-2);}
.crumb .sep{color:var(--c-line);}
.crumb .current{color:var(--c-primary);font-weight:600;}
/* ============ 文章头 ============ */
.article-head{
  background:
    linear-gradient(180deg, rgba(8,42,44,.05), rgba(8,42,44,0)),
    var(--c-surface);
  border-bottom:1px solid var(--c-line);
  padding:clamp(32px, 5vw, 56px) 0 clamp(28px, 4vw, 44px);
}
.head-inner{max-width:860px;}
.head-badge-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:16px;}
.head-cat{
  display:inline-block;background:rgba(22,167,155,.12);color:var(--c-primary);
  border-radius:var(--r-badge);padding:5px 12px;font-size:13px;font-weight:600;
}
.article-h1{
  font-size:clamp(28px, 3.6vw, 44px);line-height:1.22;font-weight:800;
  color:var(--c-ink);letter-spacing:-.02em;margin-bottom:18px;
}
.article-lead{font-size:17px;color:var(--c-ink-2);line-height:1.8;margin-bottom:22px;}
.meta-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:13.5px;color:var(--c-ink-3);}
.meta-item{display:inline-flex;align-items:center;gap:6px;}
.meta-item .meta-label{color:var(--c-ink-3);}
.meta-item time,.meta-item .num{color:var(--c-ink);}
.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--c-line);display:inline-block;}
/* ============ 正文布局 ============ */
.main-wrap{padding:var(--sect-py) 0;}
.layout-x{align-items:flex-start;}
.entry{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-1);padding:clamp(22px, 3vw, 44px);}
.article-body{max-width:800px;margin:0 auto;font-size:17px;line-height:1.9;color:var(--c-ink-2);}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 20px;}
.article-body h2{font-size:clamp(22px, 2.4vw, 30px);font-weight:700;margin:48px 0 14px;line-height:1.3;}
.article-body h3{font-size:20px;font-weight:600;margin:34px 0 12px;line-height:1.4;}
.article-body h4{font-size:17px;font-weight:600;margin:24px 0 10px;}
.article-body a{color:var(--c-primary-2);border-bottom:1px solid rgba(22,167,155,.35);}
.article-body a:hover{color:var(--c-accent);border-color:rgba(255,107,44,.4);}
.article-body strong{color:var(--c-ink);font-weight:600;}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px;list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:10px;line-height:1.85;}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;background:var(--c-bg-2);
  border-left:3px solid var(--c-primary);border-radius:0 var(--r-card) var(--r-card) 0;color:var(--c-ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-card);margin:24px auto;height:auto;}
.article-body figure{margin:26px 0;}
.article-body figcaption{font-size:13px;color:var(--c-ink-3);text-align:center;margin-top:10px;}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;}
.article-body th{
  background:var(--c-bg-2);color:var(--c-ink);font-weight:600;text-align:left;
  padding:12px 14px;border:1px solid var(--c-line);
}
.article-body td{padding:12px 14px;border:1px solid var(--c-line);}
.article-body tbody tr:nth-child(even){background:rgba(231,238,238,.45);}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:36px 0;}
.empty-state{text-align:center;padding:44px 20px;}
.empty-title{font-size:22px;font-weight:700;color:var(--c-ink);margin-bottom:12px;}
.empty-desc{font-size:15px;color:var(--c-ink-2);margin-bottom:24px;max-width:520px;margin-left:auto;margin-right:auto;}
/* ============ 侧栏 ============ */
.side-col{display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);padding:22px;transition:box-shadow .2s ease, border-color .2s ease;
}
.side-card:hover{border-color:var(--c-primary-2);box-shadow:var(--shadow-2);}
.side-title{font-size:15px;font-weight:700;color:var(--c-ink);margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-title::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--c-primary-2);display:inline-block;}
.side-list li{display:flex;align-items:center;justify-content:space-between;padding:11px 0;border-bottom:1px dashed var(--c-line);font-size:14.5px;}
.side-list li:last-child{border-bottom:0;padding-bottom:0;}
.side-list a{color:var(--c-ink-2);}
.side-list a:hover{color:var(--c-primary);}
.side-list i{color:var(--c-ink-3);font-size:12px;}
.side-note{font-size:13.5px;color:var(--c-ink-3);line-height:1.8;}
.side-note .num{color:var(--c-primary);}
.sticky-col{position:sticky;top:104px;}
/* ============ 标签行 ============ */
.tag-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:32px;padding-top:22px;border-top:1px solid var(--c-line);}
.tag-row .tag-label{font-size:13.5px;color:var(--c-ink-3);margin-right:2px;}
/* ============ 上下篇 ============ */
.post-nav{display:grid;grid-template-columns:1fr;gap:16px;margin-top:32px;}
.post-nav-item{
  display:flex;align-items:center;gap:16px;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:18px 22px;box-shadow:var(--shadow-1);transition:all .2s ease;
}
.post-nav-item:hover{border-color:var(--c-primary-2);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.post-nav-item .nav-icon{
  flex:0 0 auto;width:42px;height:42px;border-radius:var(--r-badge);background:var(--c-bg-2);
  color:var(--c-primary);display:flex;align-items:center;justify-content:center;
}
.post-nav-item h3{font-size:15.5px;font-weight:600;margin-bottom:4px;}
.post-nav-item p{font-size:13.5px;color:var(--c-ink-3);}
@media screen and (min-width:768px){
  .post-nav{grid-template-columns:1fr 1fr;}
}
/* ============ 相关推荐 ============ */
.rec-section{padding:0 0 var(--sect-py);}
.sec-head{display:flex;align-items:center;gap:18px;margin-bottom:28px;}
.sec-head h2{font-size:clamp(22px, 2.4vw, 30px);font-weight:700;flex:0 0 auto;}
.sec-line{flex:1 1 auto;height:1px;background:var(--c-line);}
.sec-tag{flex:0 0 auto;font-size:12px;letter-spacing:.12em;color:var(--c-ink-3);text-transform:uppercase;}
.rec-card{
  display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--shadow-1);overflow:hidden;height:100%;
  transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.rec-card:hover{transform:translateY(-2px);border-color:var(--c-primary-2);box-shadow:var(--shadow-2);}
.rec-thumb{aspect-ratio:16/9;background:var(--c-bg-2);overflow:hidden;}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.rec-card:hover .rec-thumb img{transform:scale(1.03);}
.rec-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.rec-body h3{font-size:17px;font-weight:600;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rec-card:hover .rec-body h3{color:var(--c-primary);}
.rec-body p{font-size:14px;color:var(--c-ink-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rec-foot{margin-top:auto;display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-3);}
/* ============ CTA ============ */
.cta-band{background:var(--c-dark);color:var(--c-on-dark);padding:clamp(44px, 6vw, 76px) 0;}
.cta-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:center;}
.cta-band h2{color:#fff;font-size:clamp(22px, 2.4vw, 30px);margin-bottom:12px;}
.cta-band p{color:var(--c-on-dark);font-size:15.5px;line-height:1.85;max-width:560px;}
.cta-band a{color:var(--c-on-dark);}
.cta-band a:hover{color:var(--c-accent);}
.cta-form{display:grid;grid-template-columns:1fr;gap:12px;}
.cta-form input{
  height:48px;border-radius:var(--r-input);border:1px solid rgba(214,228,227,.28);
  background:rgba(255,255,255,.06);color:#fff;padding:0 16px;font-size:15px;outline:none;
  transition:border-color .16s ease, box-shadow .16s ease;
}
.cta-form input::placeholder{color:rgba(214,228,227,.6);}
.cta-form input:focus{border-color:var(--c-primary-2);box-shadow:0 0 0 3px rgba(22,167,155,.28);}
.cta-form button{height:48px;border:0;border-radius:var(--r-input);background:var(--c-accent);color:#fff;font-size:15px;font-weight:600;cursor:pointer;transition:background .16s ease;}
.cta-form button:hover{background:#ef5c1c;}
.cta-note{font-size:12.5px;color:rgba(214,228,227,.72);margin-top:10px;}
@media screen and (min-width:1024px){
  .cta-grid{grid-template-columns:1.15fr .85fr;gap:48px;}
}
/* ============ 页脚 ============ */
.site-footer{background:var(--c-dark);color:var(--c-on-dark);padding:clamp(44px, 6vw, 72px) 0 28px;font-size:14.5px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-text{color:#fff;font-size:19px;}
.footer-brand .brand-sub{color:rgba(214,228,227,.72);}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-col p{color:rgba(214,228,227,.82);line-height:1.9;margin-bottom:12px;}
.footer-col ul li{margin-bottom:12px;line-height:2;}
.footer-col ul a{color:var(--c-on-dark);}
.footer-col ul a:hover{color:var(--c-accent);}
.footer-col .num{color:#fff;}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid rgba(214,228,227,.18);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(214,228,227,.66);
}
@media screen and (min-width:768px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:28px;}
}
/* ============ 回到顶部 ============ */
.to-top{
  position:fixed;right:24px;bottom:28px;z-index:70;width:46px;height:46px;border-radius:50%;
  border:1px solid var(--c-line);background:#fff;color:var(--c-primary);cursor:pointer;
  box-shadow:var(--shadow-1);display:none;align-items:center;justify-content:center;transition:all .2s ease;
}
.to-top:hover{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
.to-top.show{display:flex;}
/* ============ 动效 ============ */
.fade-up{opacity:0;transform:translateY(12px);transition:opacity .42s cubic-bezier(.2,.7,.3,1), transform .42s cubic-bezier(.2,.7,.3,1);}
.fade-up.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;}
  .fade-up{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}
/* ============ 响应式 ============ */
@media screen and (max-width:1023px){
  .channel-row{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .hotwords{display:none;}
  .search-box{max-width:none;}
  .top-action{display:none;}
  .sticky-col{position:static;}
  .rec-section{padding-bottom:clamp(40px, 8vw, 72px);}
}
@media screen and (max-width:767px){
  body{font-size:16px;}
  .grid-container{padding-left:16px;padding-right:16px;}
  .top-row{min-height:64px;gap:12px;}
  .brand-text{font-size:17.5px;}
  .brand-sub{display:none;}
  .search-box{padding-left:12px;}
  .search-box button{padding:0 14px;}
  .article-head{padding:24px 0 26px;}
  .entry{padding:20px 16px;border-radius:12px;}
  .main-wrap{padding:40px 0;}
  .to-top{right:14px;bottom:16px;}
}
@media screen and (max-width:479px){
  .search-box{display:none;}
  .brand-text{font-size:16.5px;}
}

/* roulang page: category1 */
:root{
  --c-primary:#0F4C4A;
  --c-primary-2:#16A79B;
  --c-accent:#FF6B2C;
  --c-bg:#F4F7F7;
  --c-bg-2:#E7EEEE;
  --c-surface:#FFFFFF;
  --c-dark:#082A2C;
  --c-on-dark:#D6E4E3;
  --c-ink:#0B1618;
  --c-ink-2:#4A5A5C;
  --c-ink-3:#7C8B8C;
  --c-line:#D8E2E2;
  --r-card:14px;
  --r-input:10px;
  --r-btn:999px;
  --r-badge:6px;
  --shadow-1:0 1px 2px rgba(11,22,24,.06), 0 8px 24px -14px rgba(11,22,24,.18);
  --shadow-2:0 2px 4px rgba(11,22,24,.08), 0 18px 40px -20px rgba(11,22,24,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--c-bg);color:var(--c-ink-2);
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  font-size:16.5px;line-height:1.85;-webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.is-locked{overflow:hidden}
h1,h2,h3,h4{margin:0;color:var(--c-ink);line-height:1.25;font-weight:700}
h1{font-size:clamp(30px,4vw,48px);line-height:1.15;font-weight:800;letter-spacing:-0.02em}
h2{font-size:clamp(24px,2.6vw,34px);font-weight:700;letter-spacing:-0.015em}
h3{font-size:20px;font-weight:600;line-height:1.4}
p{margin:0 0 18px}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-primary-2);text-decoration:none;transition:color .16s ease}
a:hover{color:var(--c-primary)}
button,input{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--c-primary-2);outline-offset:2px;border-radius:6px}
.num{font-family:var(--mono);font-weight:700;font-variant-numeric:tabular-nums}

/* 容器 */
.grid-container{max-width:1240px;padding-left:20px;padding-right:20px;margin-left:auto;margin-right:auto}
@media (min-width:1024px){.grid-container{padding-left:32px;padding-right:32px}}
.grid-x.gx-gap{margin-left:-14px;margin-right:-14px}
.grid-x.gx-gap > .cell{padding-left:14px;padding-right:14px}

/* 头部 */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--c-line);transition:background .2s ease,box-shadow .2s ease}
.site-header.is-scrolled{background:rgba(255,255,255,.88);backdrop-filter:blur(10px);box-shadow:0 1px 0 var(--c-line),0 10px 30px -24px rgba(11,22,24,.55)}
.topbar-inner{display:flex;align-items:center;gap:22px;height:78px;transition:height .2s ease}
.site-header.is-scrolled .topbar-inner{height:60px}
.brand{display:inline-flex;align-items:center;gap:11px;flex:0 0 auto;color:var(--c-ink)}
.brand:hover{color:var(--c-ink)}
.brand-mark{width:6px;height:28px;border-radius:2px;background:var(--c-primary-2);display:inline-block;flex:0 0 auto}
.brand-text{font-size:19px;font-weight:800;letter-spacing:-0.01em;line-height:1.1;display:inline-block;white-space:nowrap}
.brand-sub{display:block;font-size:11px;font-weight:500;color:var(--c-ink-3);letter-spacing:0;margin-top:3px}
.search-box{display:flex;align-items:center;gap:8px;flex:1 1 300px;max-width:400px;background:var(--c-bg);border:1px solid var(--c-line);border-radius:var(--r-btn);padding:4px 4px 4px 16px;transition:border-color .16s ease,background .16s ease}
.search-box:focus-within{border-color:var(--c-primary-2);background:#fff}
.search-box input{flex:1 1 auto;min-width:0;border:0;background:transparent;color:var(--c-ink);font-size:15px;padding:8px 0;outline:none}
.search-box input::placeholder{color:var(--c-ink-3)}
.hot-tags{display:flex;align-items:center;gap:8px;margin-left:auto;flex:0 0 auto}
.hot-label{font-size:12.5px;color:var(--c-ink-3)}
.tag{display:inline-block;font-size:12.5px;padding:4px 10px;border-radius:var(--r-badge);border:1px solid var(--c-line);color:var(--c-ink-2);background:#fff;transition:all .16s ease}
.tag:hover{border-color:var(--c-primary-2);color:var(--c-primary);background:rgba(22,167,155,.06)}
.ghost-link{font-size:13.5px;color:var(--c-primary-2);padding:4px 2px}
.ghost-link:hover{color:var(--c-primary)}
.menu-toggle{display:none;align-items:center;gap:7px;border:1px solid var(--c-line);background:#fff;color:var(--c-ink);border-radius:var(--r-btn);padding:9px 16px;font-size:14px;font-weight:600;cursor:pointer;transition:all .16s ease}
.menu-toggle:hover{border-color:var(--c-primary-2);color:var(--c-primary)}
.menu-toggle i{display:block;width:16px;height:2px;background:currentColor;position:relative}
.menu-toggle i::before,.menu-toggle i::after{content:"";position:absolute;left:0;width:16px;height:2px;background:currentColor}
.menu-toggle i::before{top:-5px}
.menu-toggle i::after{top:5px}

/* 频道行 */
.channel-row{
  display:flex;align-items:center;gap:4px;height:52px;background:#fff;
  border-top:1px solid var(--c-line);
  padding-left:max(20px,calc((100% - 1176px)/2));
  padding-right:max(20px,calc((100% - 1176px)/2));
  overflow-x:auto;scrollbar-width:none;
}
.channel-row::-webkit-scrollbar{display:none}
.channel-link{flex:0 0 auto;font-size:15px;color:var(--c-ink-2);padding:0 12px;line-height:50px;border-bottom:2px solid transparent;transition:color .16s ease,border-color .16s ease}
.channel-link:hover{color:var(--c-primary)}
.channel-link.is-active{color:var(--c-ink);font-weight:600;border-bottom-color:var(--c-primary-2)}
.channel-spacer{flex:1 1 auto}
.channel-mini{flex:0 0 auto;font-size:13.5px;color:var(--c-ink-3);padding:0 12px;line-height:50px}
.channel-mini:hover{color:var(--c-accent)}

/* 抽屉导航 */
.drawer{position:fixed;inset:0;z-index:90;background:#fff;display:flex;flex-direction:column;transform:translateY(-102%);visibility:hidden;transition:transform .28s var(--ease),visibility .28s;overflow-y:auto}
.drawer.is-open{transform:translateY(0);visibility:visible}
.drawer-top{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--c-line)}
.drawer-close{border:1px solid var(--c-line);background:#fff;border-radius:var(--r-btn);padding:8px 18px;font-size:14px;color:var(--c-ink);cursor:pointer}
.drawer-close:hover{border-color:var(--c-primary-2);color:var(--c-primary)}
.drawer-nav{display:flex;flex-direction:column;padding:8px 0}
.drawer-nav a{display:flex;align-items:center;justify-content:space-between;min-height:52px;padding:0 20px;font-size:16px;color:var(--c-ink);border-bottom:1px solid var(--c-line)}
.drawer-nav a.is-active{color:var(--c-primary);font-weight:600;box-shadow:inset 3px 0 0 var(--c-primary-2)}
.drawer-nav a i{font-style:normal;color:var(--c-ink-3);font-size:18px}
.drawer-foot{padding:20px;color:var(--c-ink-3);font-size:13.5px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);border:1px solid transparent;cursor:pointer;
  font-size:15px;font-weight:600;line-height:1.2;padding:14px 28px;
  transition:background-color .16s ease,color .16s ease,border-color .16s ease,transform .16s ease,box-shadow .16s ease;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 10px 24px -14px rgba(255,107,44,.9)}
.btn-primary:hover{background:#e85c1f;color:#fff}
.btn-ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary)}
.btn-ghost:hover{background:rgba(15,76,74,.08);color:var(--c-primary)}
.btn-light{background:transparent;border-color:rgba(214,228,227,.45);color:var(--c-on-dark)}
.btn-light:hover{background:rgba(214,228,227,.14);border-color:var(--c-accent);color:var(--c-accent)}
.btn-sm{padding:9px 18px;font-size:14px}

/* 面包屑 */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-3);white-space:nowrap;overflow-x:auto;margin-bottom:16px;padding-bottom:2px}
.breadcrumb a{color:var(--c-ink-3)}
.breadcrumb a:hover{color:var(--c-primary-2)}
.breadcrumb .sep{color:var(--c-line)}
.breadcrumb .current{color:var(--c-primary);font-weight:600}

/* 分类 Hero */
.cat-hero{position:relative;background:linear-gradient(180deg,#fff 0%,var(--c-bg) 100%);border-bottom:1px solid var(--c-line);overflow:hidden}
.cat-hero::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(115deg,rgba(15,76,74,.05) 0 1px,transparent 1px 28px);pointer-events:none}
.cat-hero-inner{position:relative;min-height:clamp(280px,34vh,380px);display:flex;flex-direction:column;justify-content:center;padding:32px 0 36px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;color:var(--c-primary);background:rgba(22,167,155,.1);border-radius:var(--r-badge);padding:5px 12px;margin-bottom:16px}
.cat-hero h1{margin-bottom:14px}
.cat-hero .hero-sub{font-size:16.5px;color:var(--c-ink-2);max-width:620px;margin-bottom:24px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-figure{border-radius:var(--r-card);overflow:hidden;background:var(--c-bg-2);box-shadow:var(--shadow-1)}
.hero-figure img{width:100%;height:clamp(180px,26vh,240px);object-fit:cover}

/* 板块 */
.section{padding:clamp(48px,7vw,96px) 0}
.section-alt{background:var(--c-bg-2)}
.section-head{display:flex;align-items:center;gap:18px;margin-bottom:32px}
.section-head h2{flex:0 0 auto}
.section-head .rule{flex:1 1 auto;height:1px;background:var(--c-line);min-width:32px}
.section-head .ch{flex:0 0 auto;font-family:var(--mono);font-size:12px;color:var(--c-ink-3);letter-spacing:.12em}
.lead{font-size:16.5px;color:var(--c-ink-2);max-width:760px}

/* 简介 */
.prose p{font-size:16.5px;line-height:1.9}
.aside-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:26px;box-shadow:var(--shadow-1)}
.aside-card h3{margin-bottom:16px}
.ticks li{position:relative;padding-left:22px;margin-bottom:12px;font-size:15px;color:var(--c-ink-2);line-height:1.7}
.ticks li:last-child{margin-bottom:0}
.ticks li::before{content:"";position:absolute;left:0;top:9px;width:9px;height:9px;border-radius:2px;background:var(--c-primary-2);opacity:.75}
.aside-card .btn{margin-top:20px}

/* 时间线 */
.side-sticky{position:sticky;top:150px}
.side-sticky h2{margin-bottom:14px}
.side-sticky p{font-size:15.5px;color:var(--c-ink-2)}
.timeline{position:relative;padding-left:0}
.timeline::before{content:"";position:absolute;left:9px;top:10px;bottom:14px;width:2px;background:linear-gradient(180deg,var(--c-primary-2) 0%,var(--c-line) 100%)}
.timeline-item{position:relative;padding-left:44px;padding-bottom:26px}
.timeline-item:last-child{padding-bottom:0}
.timeline-dot{position:absolute;left:0;top:8px;width:20px;height:20px;border-radius:50%;background:#fff;border:2px solid var(--c-primary-2);box-shadow:0 0 0 4px rgba(22,167,155,.12)}
.timeline-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;box-shadow:var(--shadow-1);transition:transform .18s var(--ease),border-color .18s ease,box-shadow .18s ease}
.timeline-card:hover{transform:translateY(-2px);border-color:var(--c-primary-2);box-shadow:var(--shadow-2)}
.timeline-card .step-num{display:block;font-family:var(--mono);font-size:13px;font-weight:700;color:var(--c-primary-2);letter-spacing:.1em;margin-bottom:8px}
.timeline-card h3{margin-bottom:10px}
.timeline-card p{font-size:15.5px;color:var(--c-ink-2)}
.timeline-figure{margin-top:16px;border-radius:var(--r-card);overflow:hidden;background:var(--c-bg-2)}
.timeline-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s var(--ease)}
.timeline-card:hover .timeline-figure img{transform:scale(1.03)}

/* 指标条 */
.metric-row{display:grid;grid-template-columns:repeat(3,1fr);background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1)}
.metric{padding:34px 28px;border-left:1px solid var(--c-line)}
.metric:first-child{border-left:0}
.metric-num{display:block;font-family:var(--mono);font-size:clamp(30px,3.4vw,44px);font-weight:700;color:var(--c-primary);line-height:1;margin-bottom:12px}
.metric-label{display:block;font-size:14.5px;color:var(--c-ink-2);line-height:1.6}
.metric-note{display:block;font-size:13px;color:var(--c-ink-3);margin-top:6px}

/* FAQ */
.faq-list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{position:relative;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-1);overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease}
.faq-item::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--c-accent);transform:scaleY(0);transform-origin:top;transition:transform .2s var(--ease)}
.faq-item[open]{border-color:rgba(22,167,155,.5);box-shadow:var(--shadow-2)}
.faq-item[open]::before{transform:scaleY(1)}
.faq-item summary{position:relative;list-style:none;cursor:pointer;padding:20px 58px 20px 24px;font-size:17px;font-weight:600;color:var(--c-ink);line-height:1.5}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"";position:absolute;right:24px;top:50%;width:14px;height:14px;margin-top:-7px;background:
  linear-gradient(currentColor,currentColor) center/14px 2px no-repeat,
  linear-gradient(currentColor,currentColor) center/2px 14px no-repeat;
  color:var(--c-primary-2);transition:transform .2s ease}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item summary:hover{color:var(--c-primary)}
.faq-body{padding:0 24px 22px;font-size:15.5px;color:var(--c-ink-2);line-height:1.85}

/* CTA */
.cta-band{background:var(--c-dark);border-radius:var(--r-card);padding:clamp(28px,4vw,46px);display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;color:var(--c-on-dark)}
.cta-band h2{color:#fff;margin-bottom:10px}
.cta-band p{color:var(--c-on-dark);font-size:15.5px;max-width:620px;margin:0}
.cta-band .btn{flex:0 0 auto}

/* 图片遮罩与滚动动效 */
.reveal{opacity:1;transform:none}
.js .reveal{opacity:0;transform:translateY(12px);transition:opacity .42s var(--ease),transform .42s var(--ease)}
.js .reveal.is-in{opacity:1;transform:none}

/* 页脚 */
.site-footer{background:var(--c-dark);color:var(--c-on-dark);padding:clamp(48px,6vw,76px) 0 0;margin-top:clamp(40px,6vw,80px)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:16px;font-weight:600}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col li{font-size:14.5px;line-height:2;color:var(--c-on-dark)}
.footer-col a{color:var(--c-on-dark)}
.footer-col a:hover{color:var(--c-accent)}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-brand .brand-mark{background:var(--c-primary-2)}
.footer-brand .brand-text{color:#fff}
.footer-brand .brand-sub{color:rgba(214,228,227,.65)}
.footer-col p{font-size:14.5px;color:rgba(214,228,227,.82);line-height:1.9;margin-bottom:12px}
.footer-bottom{border-top:1px solid rgba(214,228,227,.18);margin-top:44px;padding:20px 0 24px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:rgba(214,228,227,.68)}

/* 响应式 */
@media (max-width:1023px){
  .hot-tags{display:none}
  .channel-row{display:none}
  .menu-toggle{display:inline-flex;margin-left:auto}
  .topbar-inner{gap:14px;height:66px}
  .search-box{flex:1 1 auto;max-width:none}
  .side-sticky{position:static;margin-bottom:26px}
  .metric-row{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:767px){
  .brand-text{font-size:17px}
  .brand-sub{display:none}
  .search-box{display:none}
  .site-header .search-box{display:none}
  .topbar-inner{height:60px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .metric-row{grid-template-columns:1fr}
  .metric{border-left:0;border-top:1px solid var(--c-line);padding:24px}
  .metric:first-child{border-top:0}
  .cta-band{flex-direction:column;align-items:flex-start}
  .cta-band .btn{width:100%}
  .timeline-item{padding-left:36px}
  .timeline-card{padding:20px}
  .hero-actions .btn{width:100%}
}
@media (max-width:519px){
  .footer-grid{grid-template-columns:1fr}
  .section-head{gap:12px}
  .section-head .ch{display:none}
  .brand-text{font-size:16px}
  .faq-item summary{padding:18px 50px 18px 18px;font-size:16px}
  .faq-body{padding:0 18px 18px;font-size:15px}
}
@media (prefers-reduced-motion: reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
  .js .reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --c-primary:#0F4C4A;
  --c-primary-2:#16A79B;
  --c-accent:#FF6B2C;
  --c-bg:#F4F7F7;
  --c-bg-2:#E7EEEE;
  --c-surface:#FFFFFF;
  --c-dark:#082A2C;
  --c-on-dark:#D6E4E3;
  --c-ink:#0B1618;
  --c-ink-2:#4A5A5C;
  --c-ink-3:#7C8B8C;
  --c-line:#D8E2E2;
  --r-card:14px;
  --r-img:14px;
  --r-input:10px;
  --r-pill:999px;
  --r-badge:6px;
  --shadow-1:0 1px 2px rgba(11,22,24,.06), 0 8px 24px -14px rgba(11,22,24,.18);
  --shadow-2:0 2px 4px rgba(11,22,24,.08), 0 18px 40px -20px rgba(11,22,24,.28);
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
  --sec-pad:clamp(56px,8vw,112px);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--c-ink-2);
  background:var(--c-bg);
  text-align:left;
}
h1,h2,h3,h4{color:var(--c-ink);margin:0;font-weight:700;letter-spacing:-0.015em;line-height:1.3}
p{margin:0 0 16px}
a{color:var(--c-primary);text-decoration:none;transition:color .16s ease}
a:hover{color:var(--c-primary-2)}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--c-primary-2);outline-offset:2px;border-radius:4px}
img{max-width:100%;display:block;border:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
.num{font-family:var(--mono);font-weight:700;letter-spacing:-0.01em}
.grid-container{max-width:1240px;padding-left:20px;padding-right:20px;margin:0 auto}
@media screen and (min-width:1024px){.grid-container{padding-left:32px;padding-right:32px}}
section{position:relative}
.sec{padding:var(--sec-pad) 0}
.sec-alt{background:var(--c-bg-2)}
.sec-head{display:flex;align-items:center;gap:20px;margin-bottom:36px}
.sec-head h2{font-size:clamp(24px,2.6vw,34px);flex:0 0 auto}
.sec-head .sec-line{flex:1 1 auto;height:1px;background:var(--c-line)}
.sec-head .sec-tag{flex:0 0 auto;font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--c-ink-3)}
.sec-lead{max-width:760px;color:var(--c-ink-2);margin-bottom:36px}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 28px;border-radius:var(--r-pill);
  font-size:15.5px;font-weight:600;line-height:1;border:1px solid transparent;cursor:pointer;transition:all .16s ease;text-align:center}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 10px 24px -14px rgba(255,107,44,.9)}
.btn-primary:hover{background:#f05c1c;color:#fff}
.btn-ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary);border-radius:10px}
.btn-ghost:hover{background:rgba(15,76,74,.08);color:var(--c-primary)}
.btn-light{background:var(--c-primary-2);color:#052726}
.btn-light:hover{background:#12bdb0;color:#052726}

/* 标签 */
.tag{display:inline-block;border-radius:var(--r-badge);font-size:12.5px;padding:4px 10px;line-height:1.5}
.tag-outline{border:1px solid var(--c-line);color:var(--c-ink-2);background:transparent}
.tag-outline:hover{border-color:var(--c-primary-2);color:var(--c-primary);background:rgba(22,167,155,.06)}
.badge{display:inline-block;background:rgba(22,167,155,.14);color:var(--c-primary);border-radius:var(--r-badge);font-size:12.5px;font-weight:600;padding:4px 10px}

/* 头部导航 */
.site-header{position:sticky;top:0;z-index:70;background:var(--c-surface);border-bottom:1px solid var(--c-line);transition:background .24s ease,box-shadow .24s ease}
.site-header.is-scrolled{background:rgba(255,255,255,.88);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 1px 0 var(--c-line),0 10px 28px -22px rgba(11,22,24,.55)}
.brand-row{padding:14px 0;transition:padding .24s ease}
.site-header.is-scrolled .brand-row{padding:8px 0}
.brand-inner{display:flex;align-items:center;gap:20px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--c-ink);text-decoration:none}
.brand-mark{width:6px;height:30px;border-radius:2px;background:var(--c-primary-2);display:inline-block}
.brand-text{display:flex;flex-direction:column;font-size:20px;font-weight:800;letter-spacing:-0.02em;line-height:1.05;color:var(--c-ink)}
.brand-sub{font-size:11px;font-weight:500;color:var(--c-ink-3);letter-spacing:.08em;margin-top:4px}
.search-box{display:flex;align-items:center;flex:1 1 auto;max-width:420px;min-width:220px;height:42px;background:var(--c-bg);border:1px solid var(--c-line);border-radius:var(--r-pill);overflow:hidden;transition:border-color .16s ease}
.search-box:focus-within{border-color:var(--c-primary-2);box-shadow:0 0 0 3px rgba(22,167,155,.14)}
.search-box input{flex:1 1 auto;border:0;background:transparent;height:100%;padding:0 18px;font-size:14px;color:var(--c-ink);outline:none}
.search-box button{flex:0 0 50px;height:100%;border:0;background:var(--c-primary);color:#fff;cursor:pointer;font-size:14px}
.search-box button:hover{background:var(--c-primary-2)}
.hot-words{display:flex;align-items:center;gap:8px;margin-left:auto;flex:0 0 auto}
.hot-label{font-size:12.5px;color:var(--c-ink-3)}
.head-entry{font-size:14px;font-weight:600;color:var(--c-primary);border-bottom:2px solid var(--c-accent);padding-bottom:2px}
.head-entry:hover{color:var(--c-accent)}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--c-line);border-radius:10px;background:var(--c-surface);color:var(--c-primary);font-size:17px;cursor:pointer}
.channel-row{display:flex;align-items:center;gap:4px;max-width:1240px;margin:0 auto;padding:0 20px;height:52px;background:transparent}
@media screen and (min-width:1024px){.channel-row{padding-left:32px;padding-right:32px}}
.channel-link{position:relative;display:inline-flex;align-items:center;height:52px;padding:0 12px;font-size:14.5px;color:var(--c-ink-2);white-space:nowrap}
.channel-link:hover{color:var(--c-primary)}
.channel-link.is-active{color:var(--c-primary);font-weight:600}
.channel-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;background:var(--c-primary-2);border-radius:2px}
.channel-spacer{flex:1 1 auto}
.channel-mini{font-size:13.5px;color:var(--c-ink-3);padding:0 6px;white-space:nowrap}
.channel-mini:hover{color:var(--c-accent)}

/* Hero 分屏 */
.hero-split{background:var(--c-bg);border-bottom:1px solid var(--c-line);overflow:hidden}
.hero-split::before{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(115deg,rgba(15,76,74,.05) 0 1px,transparent 1px 14px);}
.hero-split .hero-inner{position:relative}
.hero-copy{padding:clamp(28px,4vw,60px) 0 clamp(24px,3.4vw,52px)}
.hero-copy h1{font-size:clamp(30px,4vw,50px);font-weight:800;line-height:1.15;letter-spacing:-0.02em;margin-bottom:16px}
.hero-copy h1 em{font-style:normal;color:var(--c-primary);}
.hero-sub{font-size:17px;color:var(--c-ink-2);max-width:560px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:24px}
.hero-facts{display:flex;flex-wrap:wrap;gap:12px 22px}
.hero-facts li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-ink-2)}
.hero-facts i{color:var(--c-primary-2)}
.hero-media{position:relative;min-height:clamp(260px,38vh,440px);height:100%;margin:clamp(20px,3vw,36px) 0;border-radius:var(--r-img);overflow:hidden;background:var(--c-bg-2)}
.hero-media img{width:100%;height:100%;min-height:inherit;object-fit:cover}
.hero-media .media-cap{position:absolute;left:0;right:0;bottom:0;padding:16px 18px;font-size:15px;color:#fff;
  background:linear-gradient(to top,rgba(8,42,44,.82),rgba(8,42,44,0))}
.breadcrumb{font-size:13px;color:var(--c-ink-3);padding:18px 0 0;white-space:nowrap;overflow-x:auto}
.breadcrumb a{color:var(--c-ink-3)}
.breadcrumb a:hover{color:var(--c-primary-2)}
.breadcrumb .sep{margin:0 8px;color:var(--c-line)}
.breadcrumb .current{color:var(--c-primary);font-weight:600}

/* 编号清单 */
.rule-item{padding:clamp(28px,3.6vw,48px) 0;border-bottom:1px solid var(--c-line)}
.rule-item:last-child{border-bottom:0}
.rule-media{border-radius:var(--r-img);overflow:hidden;background:var(--c-bg-2);box-shadow:var(--shadow-1);transition:box-shadow .24s ease}
.rule-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.rule-body{position:relative;padding:6px 0}
.rule-no{font-family:var(--mono);font-size:clamp(64px,7vw,96px);font-weight:700;line-height:1;
  color:transparent;-webkit-text-stroke:1px rgba(15,76,74,.28);display:block;margin-bottom:10px}
.rule-body h3{font-size:20px;margin-bottom:12px}
.rule-body p{margin-bottom:12px}
.rule-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.rule-meta span{font-size:13px;color:var(--c-ink-3);display:inline-flex;align-items:center;gap:6px}
.rule-meta i{color:var(--c-primary-2)}

/* 对照表 */
.compare{border-top:1px solid var(--c-line)}
.compare-head{display:grid;grid-template-columns:1fr 1fr;gap:20px;padding:16px 0;border-bottom:1px solid var(--c-line)}
.compare-head span{font-size:14px;font-weight:700;color:var(--c-ink);font-family:var(--mono);letter-spacing:.02em}
.compare-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;padding:20px 0;border-bottom:1px solid var(--c-line);transition:background .2s ease}
.compare-row:hover{background:rgba(22,167,155,.05)}
.compare-row .cell{font-size:15.5px;color:var(--c-ink-2)}
.compare-row .cell strong{color:var(--c-ink);font-weight:600;display:block;margin-bottom:4px}
.compare-note{margin-top:18px;font-size:13.5px;color:var(--c-ink-3)}

/* 检查清单 */
.check-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 40px}
.check-item{display:flex;gap:14px;padding:18px 0;border-bottom:1px solid var(--c-line)}
.check-item i{color:var(--c-primary-2);margin-top:6px;font-size:15px}
.check-item strong{display:block;color:var(--c-ink);font-weight:600;margin-bottom:4px}
.check-item p{margin:0;font-size:15px}

/* FAQ */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{border:1px solid var(--c-line);border-radius:var(--r-card);background:var(--c-surface);margin-bottom:14px;box-shadow:var(--shadow-1);overflow:hidden}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 22px;font-size:17px;font-weight:600;color:var(--c-ink);transition:background .2s ease}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:var(--c-bg-2)}
.faq-item summary .fx{flex:0 0 auto;width:22px;height:22px;position:relative}
.faq-item summary .fx::before,.faq-item summary .fx::after{content:"";position:absolute;background:var(--c-primary-2);border-radius:2px}
.faq-item summary .fx::before{left:0;right:0;top:10px;height:2px}
.faq-item summary .fx::after{top:0;bottom:0;left:10px;width:2px;transition:transform .2s ease}
.faq-item[open] summary .fx::after{transform:scaleY(0)}
.faq-item[open]{border-left:3px solid var(--c-accent)}
.faq-item .faq-answer{padding:0 22px 22px;font-size:15.5px;line-height:1.85;color:var(--c-ink-2)}
.faq-item .faq-answer p:last-child{margin-bottom:0}

/* CTA 条 */
.cta-band{background:var(--c-dark);color:var(--c-on-dark);padding:clamp(40px,6vw,72px) 0}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,30px);margin-bottom:10px}
.cta-band p{color:var(--c-on-dark);margin:0;max-width:620px}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.cta-band .link-plain{color:var(--c-on-dark);font-size:14.5px;border-bottom:1px solid rgba(214,228,227,.4)}
.cta-band .link-plain:hover{color:var(--c-accent);border-color:var(--c-accent)}

/* 卡片（图墙基础样式复用） */
.card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--c-primary-2)}

/* 页脚 */
.site-footer{background:var(--c-dark);color:var(--c-on-dark);padding:clamp(48px,6vw,80px) 0 28px;font-size:14.5px;line-height:2}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:36px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:0}
.footer-col p{color:var(--c-on-dark);margin:0 0 12px;max-width:340px}
.footer-col ul li{margin-bottom:6px}
.footer-col a{color:var(--c-on-dark)}
.footer-col a:hover{color:var(--c-accent)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{background:var(--c-primary-2)}
.footer-brand .brand-text{color:#fff;font-size:18px;font-weight:800;letter-spacing:-0.02em;display:flex;flex-direction:column;line-height:1.1}
.footer-brand .brand-sub{color:var(--c-on-dark);font-size:11px;font-weight:500;letter-spacing:.08em;margin-top:4px}
.footer-bottom{display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;border-top:1px solid rgba(214,228,227,.18);margin-top:40px;padding-top:20px;font-size:13px;color:var(--c-on-dark)}

/* 动效 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s cubic-bezier(.2,.7,.3,1),transform .42s cubic-bezier(.2,.7,.3,1)}
.reveal.is-in{opacity:1;transform:none}

/* 响应式 */
@media screen and (max-width:1023px){
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .search-box{max-width:280px}
  .hot-words{display:none}
  .channel-row{position:fixed;left:0;right:0;top:0;bottom:0;height:auto;max-width:none;flex-direction:column;
    align-items:stretch;gap:0;padding:84px 24px 40px;background:var(--c-surface);overflow-y:auto;z-index:90;
    opacity:0;visibility:hidden;transform:translateY(-10px);transition:opacity .22s ease,transform .22s ease,visibility .22s ease}
  .channel-row.is-open{opacity:1;visibility:visible;transform:none}
  .channel-link{height:52px;font-size:17px;justify-content:space-between;border-bottom:1px solid var(--c-line);padding:0 4px}
  .channel-link.is-active::after{display:none}
  .channel-link::after{content:"\203A";color:var(--c-ink-3);font-size:20px;line-height:1}
  .channel-link.is-active::after{display:block;color:var(--c-primary-2)}
  .channel-spacer{display:none}
  .channel-mini{height:52px;display:flex;align-items:center;font-size:16px;color:var(--c-ink-2);border-bottom:1px solid var(--c-line);padding:0 4px}
  body.nav-open{overflow:hidden}
  .compare-head,.compare-row{grid-template-columns:1fr 1fr;gap:16px}
}
@media screen and (max-width:767px){
  :root{--r-card:12px;--r-img:12px;--sec-pad:40px}
  body{font-size:16px}
  .search-box{display:none}
  .brand-text{font-size:18px}
  .hero-actions .btn{width:100%}
  .hero-media{min-height:220px;margin-bottom:32px}
  .compare-head,.compare-row{grid-template-columns:1fr;gap:6px}
  .compare-head span:last-child{display:none}
  .check-grid{grid-template-columns:1fr;gap:0}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .cta-band .cta-actions .btn{width:100%}
}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
}