/* roulang page: index */
/* ============ 设计令牌 ============ */
:root{
  --ink:#0D0C0F;
  --slate:#16151A;
  --panel:#1C1B21;
  --paper:#F4F0E9;
  --paper-ink:#1A181C;
  --ember:#FF5A2B;
  --jade:#4E8C7E;
  --brass:#D8A94B;
  --tx-1:#F5F2ED;
  --tx-2:rgba(245,242,237,.62);
  --tx-3:rgba(245,242,237,.38);
  --line:rgba(245,242,237,.10);
  --err:#E5484D;
  --ok:#3FA46A;
  --r-card:14px;
  --r-img:12px;
  --r-pill:999px;
  --r-sq:10px;
  --sh-dark:0 18px 40px -20px rgba(0,0,0,.65);
  --sh-soft:0 10px 24px -18px rgba(26,24,28,.35);
  --ease:cubic-bezier(.22,.61,.36,1);
  --gap:24px;
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink);
  color:var(--tx-1);
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.85;font-weight:400;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .35s var(--ease)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
p{text-align:left}
:focus-visible{outline:2px solid var(--ember);outline-offset:2px;border-radius:4px}
::selection{background:rgba(255,90,43,.35);color:#fff}

/* ============ 容器 ============ */
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 40px}

/* ============ 通用文字 ============ */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;color:var(--tx-2);
  border:1px solid var(--line);border-radius:var(--r-pill);
  padding:6px 14px;background:rgba(255,255,255,.03);
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--ember);display:block}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.sec-title{font-size:clamp(24px,3vw,36px);line-height:1.25;font-weight:700;letter-spacing:-.01em}
.sec-desc{margin-top:12px;color:var(--tx-2);font-size:16px;max-width:620px}
.sec-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--tx-2);white-space:nowrap;padding-bottom:4px;border-bottom:1px solid var(--line)}
.sec-more .arw{transition:transform .35s var(--ease);display:inline-block}
.sec-more:hover{color:var(--ember);border-color:rgba(255,90,43,.5)}
.sec-more:hover .arw{transform:translateX(4px)}
.link-inline{color:var(--ember);border-bottom:1px solid rgba(255,90,43,.4);padding-bottom:1px}
.link-inline:hover{color:#fff;border-color:#fff}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;letter-spacing:.02em;
  padding:14px 28px;border-radius:var(--r-pill);border:1px solid transparent;
  transition:transform .35s var(--ease),background .35s var(--ease),border-color .35s var(--ease),box-shadow .35s var(--ease),color .35s var(--ease);
  cursor:pointer;
}
.btn-primary{background:var(--ember);color:#1a0d07;box-shadow:0 10px 26px -16px rgba(255,90,43,.9)}
.btn-primary:hover{background:#ff7043;transform:translateY(-2px);box-shadow:0 16px 34px -16px rgba(255,90,43,.85)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--tx-1);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--ember);color:var(--ember);background:rgba(255,90,43,.08);transform:translateY(-2px)}
.btn-sm{padding:11px 20px;font-size:14px}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;letter-spacing:.05em;line-height:1;
  padding:6px 11px;border-radius:var(--r-pill);
  background:rgba(78,140,126,.16);color:#8FC7B8;border:1px solid rgba(78,140,126,.28);
  white-space:nowrap;
}
.badge-hot{background:rgba(255,90,43,.16);color:#FF9166;border-color:rgba(255,90,43,.32)}
.badge-gold{background:rgba(216,169,75,.14);color:#E3BE72;border-color:rgba(216,169,75,.3)}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  height:72px;display:flex;align-items:center;
  background:rgba(13,12,15,.32);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
  box-shadow:0 10px 30px -24px #000;
  transition:height .3s var(--ease),background .3s var(--ease);
}
.site-header.is-solid{height:60px;background:rgba(13,12,15,.94)}
.nav-wrap{display:flex;align-items:center;gap:32px;width:100%;max-width:1240px;margin:0 auto;padding:0 40px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:4px;height:22px;border-radius:2px;background:var(--ember);display:block;transition:transform .3s var(--ease)}
.site-header.is-solid .brand-mark{transform:scaleY(.9)}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--tx-1);white-space:nowrap}
.site-header.is-solid .brand-text{font-size:16px}
.nav-main{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-link{position:relative;font-size:15px;color:var(--tx-2);padding:6px 0;white-space:nowrap}
.nav-link::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--ember);transition:width .35s var(--ease)}
.nav-link:hover{color:var(--tx-1)}
.nav-link:hover::after{width:100%}
.nav-link.is-active{color:var(--tx-1)}
.nav-link.is-active::after{width:100%}
.nav-right{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.search-box{
  display:flex;align-items:center;gap:8px;height:38px;
  border:1px solid var(--line);border-radius:var(--r-pill);
  padding:0 14px;background:rgba(255,255,255,.03);
  transition:border-color .35s var(--ease),background .35s var(--ease);
}
.search-box:focus-within{border-color:var(--ember);background:rgba(255,90,43,.06)}
.search-box svg{flex:0 0 16px;opacity:.7}
.search-box input{
  width:0;opacity:0;border:0;background:transparent;color:var(--tx-1);
  font-size:14px;outline:none;transition:width .35s var(--ease),opacity .35s var(--ease);
}
.search-box input::placeholder{color:var(--tx-3)}
.search-box:focus-within input,.search-box.is-open input{width:170px;opacity:1}
.hamburger{
  display:none;width:42px;height:42px;border-radius:var(--r-sq);
  border:1px solid var(--line);align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.hamburger span{display:block;width:17px;height:1.6px;background:var(--tx-1);transition:transform .3s var(--ease)}
.drawer-mask{position:fixed;inset:0;background:rgba(0,0,0,.55);opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s var(--ease);z-index:110}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:84vw;max-width:360px;z-index:120;
  background:var(--slate);border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .38s var(--ease);
  padding:26px 22px 40px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}
.drawer-close{width:38px;height:38px;border:1px solid var(--line);border-radius:var(--r-sq);display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--tx-2)}
.drawer-close:hover{color:var(--ember);border-color:rgba(255,90,43,.5)}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:26px}
.drawer-nav a{padding:13px 12px;border-radius:var(--r-sq);font-size:15px;color:var(--tx-2);border-left:2px solid transparent}
.drawer-nav a:hover{background:rgba(255,255,255,.04);color:var(--tx-1)}
.drawer-nav a.is-active{color:var(--tx-1);border-left-color:var(--ember);background:rgba(255,90,43,.08)}
.drawer-search{display:flex;align-items:center;gap:8px;height:46px;border:1px solid var(--line);border-radius:var(--r-sq);padding:0 14px;background:rgba(255,255,255,.03);margin-bottom:18px}
.drawer-search input{flex:1;border:0;background:transparent;color:var(--tx-1);outline:none;font-size:14px}
.drawer .btn{width:100%}
.drawer-foot{margin-top:28px;padding-top:20px;border-top:1px solid var(--line);font-size:13px;color:var(--tx-3);line-height:1.9}

/* ============ Hero ============ */
.hero{
  position:relative;min-height:100vh;display:flex;align-items:flex-end;overflow:hidden;
  background-color:var(--ink);
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.hero::before{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(13,12,15,.80) 0%,rgba(13,12,15,.42) 34%,rgba(13,12,15,.94) 100%);
}
.hero::after{content:"";position:absolute;inset:0;z-index:1;background:rgba(255,90,43,.06)}
.hero-inner{position:relative;z-index:3;width:100%;padding-top:150px;padding-bottom:76px}
.hero-copy{max-width:720px}
.hero-title{
  margin:22px 0 0;
  font-size:clamp(32px,5vw,64px);
  line-height:1.15;font-weight:800;letter-spacing:-.02em;
  color:#fff;
}
.hero-title em{font-style:normal;color:var(--ember)}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.85;color:rgba(245,242,237,.78);max-width:600px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-stats{
  display:flex;flex-wrap:wrap;margin-top:52px;padding-top:26px;
  border-top:1px solid var(--line);
}
.stat{padding-right:34px;margin-right:34px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0;margin-right:0;padding-right:0}
.stat-n{display:block;font-size:26px;font-weight:800;line-height:1.3;color:#fff;font-variant-numeric:tabular-nums}
.stat-l{display:block;font-size:12px;letter-spacing:.08em;color:var(--tx-3);margin-top:2px}
.hero-scroll{
  position:absolute;left:50%;bottom:24px;transform:translateX(-50%);z-index:3;
  display:flex;flex-direction:column;align-items:center;gap:8px;
  font-size:11px;letter-spacing:.16em;color:var(--tx-3);
}
.hero-scroll i{display:block;width:1px;height:38px;background:linear-gradient(180deg,var(--ember),transparent)}

.hero-title,.hero-sub,.hero-actions,.hero-stats,.hero-copy .eyebrow{opacity:0;transform:translateY(16px);animation:rise .85s var(--ease) forwards}
.hero-copy .eyebrow{animation-delay:0s}
.hero-title{animation-delay:.08s}
.hero-sub{animation-delay:.16s}
.hero-actions{animation-delay:.24s}
.hero-stats{animation-delay:.32s}
@keyframes rise{to{opacity:1;transform:translateY(0)}}

/* ============ 板块 ============ */
.section{padding:112px 0;position:relative}
.section--tight{padding:88px 0}
.section--dark{background:var(--ink)}
.section--slate{background:var(--slate)}
.section--paper{background:var(--paper);color:var(--paper-ink)}
.section--paper .sec-title{color:var(--paper-ink)}
.section--paper .sec-desc{color:rgba(26,24,28,.66)}
.section--paper .sec-more{color:rgba(26,24,28,.6);border-color:rgba(26,24,28,.18)}
.section--paper .sec-more:hover{color:#E14A1D;border-color:#E14A1D}
.rule{height:1px;background:var(--line);border:0;margin:0}

/* ============ 横滑轨道 ============ */
.rail-wrap{position:relative}
.rail-wrap::before,.rail-wrap::after{
  content:"";position:absolute;top:0;bottom:14px;width:56px;z-index:2;pointer-events:none;
}
.rail-wrap::before{left:-40px;background:linear-gradient(90deg,var(--ink),transparent);opacity:.9}
.rail-wrap::after{right:-40px;background:linear-gradient(270deg,var(--ink),transparent);opacity:.9}
.rail{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 4px 14px;scrollbar-width:none;-ms-overflow-style:none}
.rail::-webkit-scrollbar{display:none}
.rail-card{
  flex:0 0 260px;scroll-snap-align:start;position:relative;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  transition:transform .35s var(--ease),border-color .35s var(--ease),box-shadow .35s var(--ease);
}
.rail-card:hover{transform:translateY(-4px);border-color:rgba(255,90,43,.45);box-shadow:var(--sh-dark)}
.rail-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--slate)}
.rail-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.rail-card:hover .rail-thumb img{transform:scale(1.04)}
.rail-thumb .badge{position:absolute;right:10px;bottom:10px;backdrop-filter:blur(6px)}
.rail-body{padding:14px 16px 18px}
.rail-title{font-size:15px;font-weight:600;line-height:1.55;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rail-meta{margin-top:8px;font-size:12px;letter-spacing:.04em;color:var(--tx-3);display:flex;align-items:center;gap:8px}
.rail-meta i{width:3px;height:3px;border-radius:50%;background:var(--tx-3);display:block}

/* ============ 非对称推荐 ============ */
.feature-grid{display:grid;grid-template-columns:5fr 7fr;gap:28px;align-items:stretch}
.feat-main{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);aspect-ratio:2/3;display:block}
.feat-main img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.feat-main:hover img{transform:scale(1.05)}
.feat-main::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(13,12,15,.05) 30%,rgba(13,12,15,.92) 100%)}
.feat-main-body{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:26px}
.feat-main h3{font-size:22px;font-weight:700;line-height:1.4;color:#fff;margin-top:12px}
.feat-main p{margin-top:10px;font-size:14px;line-height:1.75;color:var(--tx-2)}
.feat-list{display:flex;flex-direction:column}
.feat-row{display:flex;gap:18px;padding:20px 4px 20px 0;border-bottom:1px solid var(--line);position:relative;transition:transform .35s var(--ease)}
.feat-row:first-child{padding-top:0}
.feat-row:last-child{border-bottom:0;padding-bottom:0}
.feat-row::before{content:"";position:absolute;left:-14px;top:22px;bottom:22px;width:3px;border-radius:2px;background:var(--ember);opacity:0;transition:opacity .35s var(--ease)}
.feat-row:first-child::before{top:2px}
.feat-row:hover{transform:translateX(4px)}
.feat-row:hover::before{opacity:1}
.feat-row-thumb{flex:0 0 80px;width:80px;height:112px;border-radius:var(--r-img);overflow:hidden;background:var(--slate)}
.feat-row-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.feat-row:hover .feat-row-thumb img{transform:scale(1.06)}
.feat-row-body{flex:1;min-width:0}
.feat-row h3{font-size:17px;font-weight:600;line-height:1.5;margin-top:8px}
.feat-row p{margin-top:8px;font-size:14px;line-height:1.7;color:var(--tx-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.feat-row time{display:block;margin-top:10px;font-size:12px;letter-spacing:.04em;color:var(--tx-3)}

/* ============ 数据带（浅色） ============ */
.paper-band{background:var(--paper);color:var(--paper-ink);padding:78px 0}
.paper-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.paper-item{border-left:1px solid rgba(26,24,28,.14);padding-left:22px}
.paper-item .n{display:block;font-size:clamp(30px,3.4vw,42px);font-weight:800;line-height:1.15;color:#1A181C;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.paper-item .n span{font-size:16px;font-weight:600;margin-left:4px;color:rgba(26,24,28,.55)}
.paper-item .t{display:block;margin-top:8px;font-size:14px;color:rgba(26,24,28,.62);line-height:1.7}
.paper-item .k{display:block;font-size:12px;letter-spacing:.1em;color:#E14A1D;font-weight:700;margin-bottom:6px}

/* ============ 错位分类格 ============ */
.mosaic{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.mosaic-item{
  position:relative;display:block;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);background:var(--slate);
  transition:transform .4s var(--ease),border-color .4s var(--ease),box-shadow .4s var(--ease);
}
.mosaic-item:nth-child(1){aspect-ratio:4/3}
.mosaic-item:nth-child(2){aspect-ratio:16/9;margin-top:34px}
.mosaic-item:nth-child(3){aspect-ratio:16/9}
.mosaic-item:nth-child(4){aspect-ratio:4/3;margin-top:34px}
.mosaic-item img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease),opacity .4s var(--ease);opacity:.62}
.mosaic-item::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(13,12,15,.15) 25%,rgba(13,12,15,.9) 100%);transition:background .4s var(--ease)}
.mosaic-item:hover{transform:translateY(-4px);border-color:rgba(255,90,43,.45);box-shadow:var(--sh-dark)}
.mosaic-item:hover img{transform:scale(1.06);opacity:.78}
.mosaic-body{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:24px;display:flex;align-items:flex-end;justify-content:space-between;gap:16px}
.mosaic-name{font-size:20px;font-weight:700;color:#fff;line-height:1.4}
.mosaic-count{display:block;margin-top:6px;font-size:13px;color:var(--tx-2);letter-spacing:.04em}
.mosaic-arw{
  flex:0 0 34px;width:34px;height:34px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--tx-1);
  transition:background .35s var(--ease),border-color .35s var(--ease),transform .35s var(--ease);
}
.mosaic-item:hover .mosaic-arw{background:var(--ember);border-color:var(--ember);color:#1a0d07;transform:translateX(3px)}

/* ============ 最新动态（CMS 区） ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.news-card{
  display:flex;flex-direction:column;background:var(--panel);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  transition:transform .35s var(--ease),border-color .35s var(--ease),box-shadow .35s var(--ease);
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(255,90,43,.42);box-shadow:var(--sh-dark)}
.news-thumb{position:relative;aspect-ratio:16/9;background:linear-gradient(135deg,#1C1B21,#242129);border-bottom:1px solid var(--line)}
.news-thumb .ph{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:repeating-linear-gradient(135deg,rgba(78,140,126,.10) 0 8px,transparent 8px 18px)}
.news-thumb .badge{position:absolute;left:12px;top:12px}
.news-body{padding:18px 20px 22px;display:flex;flex-direction:column;flex:1}
.news-title{font-size:16px;font-weight:600;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card:hover .news-title{color:#fff}
.news-sum{margin-top:10px;font-size:14px;line-height:1.75;color:var(--tx-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:auto;padding-top:16px;font-size:12px;letter-spacing:.04em;color:var(--tx-3);display:flex;align-items:center;gap:8px}
.news-meta i{width:6px;height:6px;border-radius:50%;background:var(--ember);display:block;flex:0 0 6px}
.empty-card{
  border:1px dashed rgba(245,242,237,.22);border-radius:var(--r-card);
  padding:38px 32px;background:rgba(255,255,255,.02);text-align:left;max-width:560px;
}
.empty-card h3{font-size:17px;font-weight:600;color:var(--tx-1)}
.empty-card p{margin-top:10px;font-size:14px;color:var(--tx-2);line-height:1.8}
.empty-card a{display:inline-block;margin-top:18px;font-size:14px;color:var(--ember);border-bottom:1px solid rgba(255,90,43,.4)}

/* ============ CTA 条 ============ */
.cta-band{
  position:relative;background:var(--ink);overflow:hidden;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:72px 0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(135deg,rgba(255,90,43,.075) 0 2px,transparent 2px 16px);
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:36px}
.cta-inner h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.35;letter-spacing:-.01em}
.cta-inner p{margin-top:12px;font-size:15px;color:var(--tx-2);line-height:1.8;max-width:640px}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;align-items:start}
.faq-item{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:border-color .35s var(--ease);
}
.faq-item:hover{border-color:rgba(78,140,126,.42)}
.faq-item.is-open{border-color:rgba(255,90,43,.42)}
.faq-q{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;min-height:56px;padding:18px 20px;text-align:left;
  font-size:16px;font-weight:600;color:var(--tx-1);line-height:1.6;
}
.faq-item.is-open .faq-q::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 2px 2px 0;background:var(--ember)}
.faq-icon{position:relative;flex:0 0 18px;width:18px;height:18px;transition:transform .35s var(--ease)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--ember);border-radius:2px}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .38s var(--ease)}
.faq-item.is-open .faq-a{grid-template-rows:1fr}
.faq-a-inner{overflow:hidden}
.faq-a p{padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--tx-2)}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);border-top:1px solid var(--line);padding:72px 0 34px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.foot-brand .brand-mark{transform:none}
.foot-desc{font-size:14px;line-height:1.85;color:var(--tx-2);max-width:340px}
.foot-col h4{font-size:13px;letter-spacing:.1em;color:var(--tx-3);font-weight:600;margin-bottom:16px}
.foot-col a{display:block;font-size:14px;color:var(--tx-2);padding:6px 0}
.foot-col a:hover{color:var(--ember)}
.foot-bottom{
  margin-top:52px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  font-size:13px;color:var(--tx-3);
}
.foot-bottom .made{letter-spacing:.04em}

/* ============ 响应式 ============ */
@media (min-width:1025px) and (max-width:1440px){
  .hero-inner{padding-bottom:70px}
}
@media (max-width:1024px){
  .container,.nav-wrap{padding:0 28px}
  .nav-main,.nav-right{display:none}
  .hamburger{display:flex;margin-left:auto}
  .section{padding:76px 0}
  .section--tight{padding:64px 0}
  .feature-grid{grid-template-columns:1fr;gap:24px}
  .feat-main{aspect-ratio:16/10}
  .mosaic-item:nth-child(2),.mosaic-item:nth-child(4){margin-top:0}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .faq-grid{grid-template-columns:1fr}
  .paper-grid{grid-template-columns:repeat(2,1fr);gap:32px 24px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:24px}
  .cta-inner .btn{width:100%}
  .rail-wrap::before,.rail-wrap::after{display:none}
  .hero-inner{padding-top:130px;padding-bottom:64px}
}
@media (max-width:640px){
  body{font-size:16px}
  .container,.nav-wrap{padding:0 20px}
  .section{padding:56px 0}
  .section--tight{padding:52px 0}
  .hero{min-height:86vh}
  .hero-inner{padding-top:120px;padding-bottom:56px}
  .hero-sub{font-size:16px}
  .hero-actions{gap:12px}
  .hero-actions .btn{width:100%}
  .hero-stats{display:grid;grid-template-columns:1fr 1fr;gap:20px 0;margin-top:40px}
  .stat{border-right:0;padding-right:0;margin-right:0;padding-left:14px;border-left:2px solid rgba(255,90,43,.5)}
  .hero-scroll{display:none}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px}
  .rail-card{flex:0 0 200px}
  .news-grid{grid-template-columns:1fr}
  .mosaic{grid-template-columns:1fr;gap:18px}
  .paper-band{padding:56px 0}
  .paper-grid{grid-template-columns:1fr 1fr;gap:26px 18px}
  .paper-item{padding-left:16px}
  .cta-band{padding:56px 0}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding:56px 0 28px}
  .feat-row-thumb{flex:0 0 68px;width:68px;height:96px}
  .feat-main{aspect-ratio:3/4}
  .faq-q{font-size:15px;padding:16px 18px}
  .faq-a p{padding:0 18px 18px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001s!important;transition-duration:.001s!important}
  .hero-title,.hero-sub,.hero-actions,.hero-stats,.hero-copy .eyebrow{opacity:1;transform:none}
  .rail-card:hover,.news-card:hover,.mosaic-item:hover,.feat-row:hover{transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --ink:#0D0C0F;
  --slate:#16151A;
  --panel:#1C1B21;
  --paper:#F4F0E9;
  --paper-ink:#1A181C;
  --ember:#FF5A2B;
  --jade:#4E8C7E;
  --brass:#D8A94B;
  --tx-1:#F5F2ED;
  --tx-2:rgba(245,242,237,.62);
  --tx-3:rgba(245,242,237,.38);
  --line:rgba(245,242,237,.10);
  --err:#E5484D;
  --ok:#3FA46A;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow-card:0 18px 40px -20px rgba(0,0,0,.65);
  --shadow-soft:0 10px 24px -18px rgba(26,24,28,.35);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink);
  color:var(--tx-1);
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6,p,figure,blockquote{margin:0}
a{color:inherit;text-decoration:none;transition:color .35s var(--ease),border-color .35s var(--ease)}
img{max-width:100%;height:auto;display:block}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea,select{font:inherit}
ul,ol{margin:0;padding:0;list-style:none}
table{border-collapse:collapse}
:focus-visible{outline:2px solid var(--ember);outline-offset:2px}
::selection{background:var(--ember);color:#fff}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.section{padding:56px 0}
.section-title{font-size:clamp(22px,2.6vw,32px);font-weight:700;letter-spacing:-.01em;line-height:1.3}
.section-sub{color:var(--tx-2);font-size:15px;margin-top:10px;max-width:640px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.16em;color:var(--tx-2);border:1px solid var(--line);border-radius:999px;padding:6px 14px;text-transform:uppercase}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--ember)}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:90;
  background:rgba(13,12,15,.32);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
  box-shadow:0 10px 30px -24px #000;
  transition:background .3s var(--ease);
}
.site-header.is-solid{background:rgba(13,12,15,.94)}
.nav-wrap{
  max-width:1440px;margin:0 auto;padding:0 24px;height:72px;
  display:flex;align-items:center;gap:26px;
  transition:height .3s var(--ease);
}
.site-header.is-solid .nav-wrap{height:60px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;transition:transform .3s var(--ease)}
.site-header.is-solid .brand{transform:scale(.94)}
.brand-mark{width:6px;height:24px;border-radius:3px;background:var(--ember);display:inline-block;box-shadow:0 0 18px rgba(255,90,43,.55)}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.nav-main{display:flex;align-items:center;gap:26px;margin-left:12px;flex:1 1 auto}
.nav-link{
  position:relative;font-size:14.5px;color:var(--tx-2);
  padding:6px 0;white-space:nowrap;transition:color .3s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--ember);transition:width .35s var(--ease);
}
.nav-link:hover{color:var(--tx-1)}
.nav-link:hover::after{width:100%}
.nav-link.is-active{color:var(--tx-1)}
.nav-link.is-active::after{width:100%}
.nav-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;margin-left:auto}
.icon-btn{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--tx-2);transition:.35s var(--ease);
}
.icon-btn:hover{color:var(--ember);border-color:rgba(255,90,43,.5)}
.icon-btn svg{width:17px;height:17px;stroke:currentColor;fill:none;stroke-width:1.5}
.search-box{display:flex;align-items:center;gap:8px;position:relative}
.search-input{
  width:0;opacity:0;padding:0;height:38px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);border-radius:10px;color:var(--tx-1);
  transition:width .35s var(--ease),opacity .3s var(--ease),padding .35s var(--ease);
}
.search-input::placeholder{color:var(--tx-3)}
.search-box.is-open .search-input{width:240px;opacity:1;padding:0 12px}
.search-input:focus{outline:none;border-color:var(--ember);box-shadow:0 0 0 4px rgba(255,90,43,.10)}
.burger{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);flex-direction:column;align-items:center;justify-content:center;gap:4px}
.burger span{display:block;width:16px;height:1.5px;background:var(--tx-1);transition:.3s var(--ease)}
.burger:hover span{background:var(--ember)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;padding:14px 28px;font-size:15px;font-weight:600;
  letter-spacing:.01em;white-space:nowrap;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),background .35s var(--ease),color .35s var(--ease),border-color .35s var(--ease);
}
.btn-primary{background:var(--ember);color:#fff;box-shadow:0 14px 30px -16px rgba(255,90,43,.75)}
.btn-primary:hover{background:#ff6d43;transform:translateY(-2px);box-shadow:0 20px 38px -16px rgba(255,90,43,.85)}
.btn-ghost{
  background:transparent;color:var(--tx-1);border:1px solid var(--line);border-radius:10px;
}
.btn-ghost:hover{border-color:var(--ember);color:var(--ember);background:rgba(255,90,43,.07);transform:translateY(-2px)}
.btn-sm{padding:10px 20px;font-size:14px;border-radius:10px}
.text-link{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--tx-2);transition:.35s var(--ease)}
.text-link .arrow{transition:transform .35s var(--ease)}
.text-link:hover{color:var(--ember)}
.text-link:hover .arrow{transform:translateX(4px)}

/* ============ 抽屉 ============ */
.drawer-mask{position:fixed;inset:0;background:rgba(0,0,0,.55);opacity:0;visibility:hidden;transition:.35s var(--ease);z-index:95}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:84vw;max-width:360px;z-index:100;
  background:var(--slate);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .4s var(--ease);
  padding:26px 22px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.drawer-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:22px}
.drawer-nav a{padding:12px 10px;border-radius:10px;font-size:15px;color:var(--tx-2);border:1px solid transparent}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--tx-1);background:rgba(255,255,255,.04);border-color:var(--line)}
.drawer-search{margin-bottom:22px}
.drawer-search input{
  width:100%;height:44px;padding:0 14px;background:rgba(255,255,255,.04);
  border:1px solid var(--line);border-radius:10px;color:var(--tx-1);
}
.drawer-search input::placeholder{color:var(--tx-3)}
.drawer-search input:focus{outline:none;border-color:var(--ember);box-shadow:0 0 0 4px rgba(255,90,43,.10)}
.drawer-foot{border-top:1px solid var(--line);padding-top:18px;color:var(--tx-3);font-size:13px;line-height:1.9}

/* ============ 面包屑 / 文章头 ============ */
main{padding-top:104px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--tx-3);margin-bottom:26px}
.breadcrumb a{color:var(--tx-3)}
.breadcrumb a:hover{color:var(--ember)}
.breadcrumb .sep{color:var(--tx-3);opacity:.6}
.breadcrumb .current{color:var(--ember);max-width:60vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.post-head{border-bottom:1px solid var(--line);padding-bottom:30px;margin-bottom:44px}
.post-head h1{
  font-size:clamp(28px,3.6vw,44px);
  font-weight:900;line-height:1.22;letter-spacing:-.02em;
  max-width:900px;
}
.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:20px;font-size:13px;color:var(--tx-3)}
.post-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--tx-3);opacity:.7}
.post-meta .meta-cat{
  display:inline-flex;align-items:center;font-size:12px;letter-spacing:.04em;
  color:var(--jade);background:rgba(78,140,126,.14);
  border-radius:999px;padding:4px 12px;
}

/* ============ 布局 ============ */
.layout{display:grid;grid-template-columns:minmax(0,1fr);gap:52px;padding-bottom:72px}
.main-col{min-width:0}

/* ============ 正文 ============ */
.article-body{
  max-width:760px;font-size:17px;line-height:1.9;color:var(--tx-1);
  word-wrap:break-word;overflow-wrap:break-word;
}
.article-body > :first-child{margin-top:0}
.article-body p{margin:0 0 22px}
.article-body h2{
  font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.4;
  margin:56px 0 18px;padding-left:14px;border-left:3px solid var(--ember);
  letter-spacing:-.01em;
}
.article-body h3{font-size:20px;font-weight:600;line-height:1.5;margin:38px 0 14px}
.article-body h4{font-size:17px;font-weight:600;margin:28px 0 12px}
.article-body a{color:var(--ember);border-bottom:1px solid rgba(255,90,43,.42)}
.article-body a:hover{color:#ff7a52;border-bottom-color:#ff7a52}
.article-body strong{font-weight:700;color:#fff}
.article-body ul,.article-body ol{padding-left:24px;margin:0 0 24px}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:10px;line-height:1.9}
.article-body li::marker{color:var(--ember)}
.article-body img{border-radius:var(--r-img);margin:26px 0}
.article-body figure{margin:26px 0}
.article-body figcaption,.article-body .caption{
  display:block;text-align:center;font-size:13px;color:var(--tx-3);margin-top:-12px;margin-bottom:24px;
}
.article-body blockquote{
  margin:28px 0;padding:18px 22px;border-left:3px solid var(--ember);
  background:rgba(244,240,233,.06);border-radius:0 10px 10px 0;color:var(--tx-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:40px 0}
.article-body table{
  display:block;width:100%;overflow-x:auto;margin:26px 0;
  border:1px solid var(--line);border-radius:10px;
}
.article-body table th,.article-body table td{padding:12px 16px;border-bottom:1px solid var(--line);font-size:15px;text-align:left;white-space:nowrap}
.article-body table th{background:rgba(255,255,255,.04);font-weight:600;color:var(--tx-1)}
.article-body table tr:last-child td{border-bottom:0}
.article-body pre{
  overflow-x:auto;padding:18px 20px;margin:26px 0;
  background:#141319;border:1px solid var(--line);border-radius:10px;
  font-size:14px;line-height:1.75;
}
.article-body code{
  font-family:"SFMono-Regular",Consolas,monospace;font-size:.92em;
  background:rgba(255,255,255,.06);border-radius:6px;padding:2px 6px;
}
.article-body pre code{background:none;padding:0}

/* ============ 空态 ============ */
.empty-state{
  max-width:760px;border:1px dashed rgba(255,90,43,.42);border-radius:var(--r-card);
  padding:40px 28px;background:rgba(255,90,43,.04);
}
.empty-state h2{font-size:20px;font-weight:700;margin-bottom:12px}
.empty-state p{color:var(--tx-2);font-size:15.5px;margin-bottom:22px}

/* ============ 标签 ============ */
.post-tags{margin-top:48px;padding-top:28px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:10px;max-width:760px}
.post-tags .tag{
  font-size:13px;color:var(--tx-2);border:1px solid var(--line);
  border-radius:999px;padding:7px 16px;transition:.35s var(--ease);
}
.post-tags .tag:hover{color:var(--ember);border-color:rgba(255,90,43,.55);background:rgba(255,90,43,.06)}

/* ============ 目录 ============ */
.toc{display:none}
.toc-inner{border:1px solid var(--line);border-radius:var(--r-card);padding:20px;background:rgba(255,255,255,.02)}
.toc-title{font-size:13px;letter-spacing:.1em;color:var(--tx-3);margin-bottom:14px}
.toc-list{display:flex;flex-direction:column;gap:2px}
.toc-list a{
  display:block;font-size:13.5px;line-height:1.7;color:var(--tx-2);
  padding:7px 10px;border-left:2px solid transparent;border-radius:0 8px 8px 0;
}
.toc-list a:hover{color:var(--tx-1);background:rgba(255,255,255,.04)}
.toc-list a.is-active{color:var(--ember);border-left-color:var(--ember);background:rgba(255,90,43,.06)}
.toc.is-hidden{display:none !important}

/* ============ 相关推荐 ============ */
.related{padding:0 0 72px}
.related-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px}
.card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;height:100%;display:flex;flex-direction:column;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card);border-color:rgba(255,90,43,.4)}
.card-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:#111015}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .55s var(--ease)}
.card:hover .card-cover img{transform:scale(1.04)}
.card-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.card-title{font-size:16px;font-weight:600;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-desc{font-size:14px;line-height:1.75;color:var(--tx-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-time{font-size:12.5px;color:var(--tx-3);display:flex;align-items:center;gap:8px;margin-top:auto}
.card-time::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--ember)}
.badge{
  display:inline-flex;align-items:center;font-size:12px;letter-spacing:.04em;
  border-radius:999px;padding:4px 12px;
  color:var(--jade);background:rgba(78,140,126,.14);
}
.badge-ember{color:#fff;background:rgba(255,90,43,.85)}

/* ============ 返回 ============ */
.back-row{padding:0 0 64px}

/* ============ CTA ============ */
.cta-band{
  position:relative;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background-image:linear-gradient(rgba(13,12,15,.86),rgba(13,12,15,.94)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  padding:56px 0;
}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px}
.cta-copy h2{font-size:clamp(22px,2.6vw,32px);font-weight:800;line-height:1.3;letter-spacing:-.01em}
.cta-copy p{color:var(--tx-2);font-size:15px;margin-top:12px;max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{border-top:1px solid var(--line);background:var(--slate);padding:64px 0 28px;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.foot-brand .brand-mark{width:6px;height:22px;border-radius:3px;background:var(--ember)}
.foot-brand .brand-text{font-size:16px;font-weight:700}
.foot-desc{color:var(--tx-2);font-size:14px;line-height:1.9;max-width:360px}
.foot-col h4{font-size:14px;font-weight:600;margin-bottom:16px;color:var(--tx-1)}
.foot-col a{display:block;font-size:14px;color:var(--tx-2);padding:6px 0}
.foot-col a:hover{color:var(--ember)}
.foot-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--tx-3);
}
.foot-bottom .made{color:var(--tx-3)}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .nav-main{display:none}
  .burger{display:flex}
  .search-box{display:none}
  .nav-wrap{height:64px;padding:0 20px;gap:16px}
  .site-header.is-solid .nav-wrap{height:58px}
  main{padding-top:92px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px}
  .cta-band{padding:48px 0}
}
@media (min-width:641px){
  .container{padding:0 28px}
}
@media (min-width:1025px){
  .container{padding:0 40px}
  .section{padding:96px 0}
  .cta-band{padding:64px 0}
}
@media (min-width:1200px){
  .layout{grid-template-columns:minmax(0,1fr) 248px}
  .toc{display:block;position:sticky;top:104px;align-self:start}
}
@media (max-width:640px){
  body{font-size:15.5px}
  .container{padding:0 20px}
  main{padding-top:88px}
  .post-head h1{font-size:26px}
  .breadcrumb .current{max-width:100%;white-space:normal}
  .article-body{font-size:16.5px;line-height:1.9}
  .article-body h2{margin-top:44px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .related-head{flex-direction:column;align-items:flex-start}
  .nav-actions .btn-sm{display:none}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;scroll-behavior:auto !important}
  .card:hover{transform:none}
  .card:hover .card-cover img{transform:none}
}
/* Foundation 覆盖 */
body,html{background:var(--ink)}
a{color:inherit}
a:hover{color:inherit}
button,.button{border-radius:999px}
.grid-x>.cell{padding-left:10px;padding-right:10px}
.grid-margin-x{margin-left:-10px;margin-right:-10px}

/* roulang page: category1 */
:root{
  --ink:#0D0C0F;
  --slate:#16151A;
  --panel:#1C1B21;
  --paper:#F4F0E9;
  --paper-card:#FCFAF6;
  --ember:#FF5A2B;
  --jade:#4E8C7E;
  --brass:#D8A94B;
  --tx-1:#F5F2ED;
  --tx-2:rgba(245,242,237,.62);
  --tx-3:rgba(245,242,237,.38);
  --line:rgba(245,242,237,.10);
  --dark-text:#1A181C;
  --dark-text-2:rgba(26,24,28,.62);
  --dark-text-3:rgba(26,24,28,.42);
  --dark-line:rgba(26,24,28,.12);
  --err:#E5484D;
  --ok:#3FA46A;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --tr:.35s cubic-bezier(.22,.61,.36,1);
  --shadow-dark:0 18px 40px -20px rgba(0,0,0,.65);
  --shadow-light:0 10px 24px -18px rgba(26,24,28,.35);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink);
  color:var(--tx-1);
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul{list-style:none;padding:0}
:focus-visible{outline:2px solid var(--ember);outline-offset:2px}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media (min-width:641px){.container{padding:0 28px}}
@media (min-width:1025px){.container{padding:0 40px}}

/* ============ 顶部玻璃导航 ============ */
.topbar{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(13,12,15,.32);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
  box-shadow:0 10px 30px -24px #000;
  transition:background .3s var(--ease);
}
.topbar.is-solid{background:rgba(13,12,15,.94)}
.topbar-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  height:72px;transition:height .3s var(--ease);
}
.topbar.is-solid .topbar-inner{height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;transition:transform .3s var(--ease)}
.topbar.is-solid .brand{transform:scale(.92)}
.brand-mark{width:4px;height:22px;border-radius:2px;background:var(--ember);display:inline-block}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.nav-main{display:flex;align-items:center;justify-content:center;gap:26px;flex:1 1 auto;min-width:0}
.nav-link{
  position:relative;display:inline-block;padding:6px 0;
  font-size:15px;font-weight:500;color:var(--tx-2);white-space:nowrap;
  transition:color .3s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--ember);transition:width .35s var(--ease);
}
.nav-link:hover,.nav-link:focus-visible{color:var(--tx-1)}
.nav-link:hover::after,.nav-link:focus-visible::after{width:100%}
.nav-link.is-active{color:var(--tx-1)}
.nav-link.is-active::after{width:100%}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.icon-btn{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;border:1px solid var(--line);background:rgba(245,242,237,.04);
  color:var(--tx-2);cursor:pointer;transition:color var(--tr),border-color var(--tr),background var(--tr);
}
.icon-btn:hover{color:var(--ember);border-color:rgba(255,90,43,.45);background:rgba(255,90,43,.07)}
.search-wrap{display:flex;align-items:center;gap:8px}
.search-field{
  width:0;opacity:0;height:38px;padding:0;border:1px solid transparent;
  border-radius:10px;background:rgba(245,242,237,.06);color:var(--tx-1);
  font-size:14px;transition:width .35s var(--ease),opacity .35s var(--ease),padding .35s var(--ease),border-color .35s var(--ease);
}
.search-field::placeholder{color:var(--tx-3)}
.search-wrap.is-open .search-field{width:220px;opacity:1;padding:0 12px;border-color:var(--line)}
.menu-toggle{display:none}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  padding:12px 24px;border-radius:999px;border:1px solid transparent;
  transition:transform var(--tr),box-shadow var(--tr),background var(--tr),color var(--tr),border-color var(--tr),filter var(--tr);
}
.btn-primary{background:var(--ember);color:#180C06;box-shadow:0 12px 28px -16px rgba(255,90,43,.85)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 18px 34px -16px rgba(255,90,43,.9)}
.btn-ghost{background:transparent;border-color:rgba(245,242,237,.28);color:var(--tx-1)}
.btn-ghost:hover{border-color:var(--ember);color:var(--ember);background:rgba(255,90,43,.06)}
.btn-sm{padding:9px 16px;font-size:14px}

/* ============ 抽屉菜单 ============ */
.drawer-mask{
  position:fixed;inset:0;z-index:70;background:rgba(0,0,0,.55);
  opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;z-index:80;height:100%;
  width:84vw;max-width:360px;padding:22px 22px 32px;
  background:#111014;border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .35s var(--ease);
  overflow-y:auto;display:flex;flex-direction:column;gap:4px;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-title{font-size:15px;font-weight:700;letter-spacing:.02em}
.drawer-close{
  width:34px;height:34px;border-radius:9px;border:1px solid var(--line);
  background:transparent;color:var(--tx-2);cursor:pointer;font-size:15px;
  transition:color var(--tr),border-color var(--tr);
}
.drawer-close:hover{color:var(--ember);border-color:rgba(255,90,43,.45)}
.drawer a.drawer-link{
  display:block;padding:13px 4px;font-size:16px;font-weight:500;color:var(--tx-2);
  border-bottom:1px solid var(--line);transition:color var(--tr),padding-left var(--tr);
}
.drawer a.drawer-link:hover{color:var(--ember);padding-left:10px}
.drawer a.drawer-link.is-active{color:var(--ember)}
.drawer-search{margin:18px 0 10px}
.drawer-search input{
  width:100%;height:44px;padding:0 14px;border-radius:10px;
  border:1px solid var(--line);background:rgba(245,242,237,.05);color:var(--tx-1);font-size:15px;
  transition:border-color var(--tr),box-shadow var(--tr);
}
.drawer-search input:focus{outline:none;border-color:var(--ember);box-shadow:0 0 0 3px rgba(255,90,43,.14)}
.drawer-foot{margin-top:auto;padding-top:24px;font-size:13px;color:var(--tx-3);line-height:1.9}

/* ============ 分类横幅 ============ */
.cat-banner{
  position:relative;display:flex;align-items:flex-end;
  min-height:360px;padding:132px 0 44px;
  background-image:
    linear-gradient(180deg,rgba(13,12,15,.70) 0%,rgba(13,12,15,.86) 58%,var(--ink) 100%),
    linear-gradient(90deg,rgba(255,90,43,.10),rgba(255,90,43,0) 62%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover,cover,cover;
  background-position:center,center,center;
}
@media (min-width:641px){.cat-banner{min-height:380px;padding-top:150px}}
.banner-眉{margin-bottom:18px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;color:var(--tx-2);
  padding:6px 14px;border:1px solid var(--line);border-radius:999px;
  background:rgba(13,12,15,.4);
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--ember)}
.cat-banner h1{
  font-size:clamp(30px,5vw,58px);line-height:1.15;font-weight:800;
  letter-spacing:-.02em;max-width:820px;text-align:left;
}
.cat-banner .banner-sub{margin-top:18px;font-size:16px;color:var(--tx-2);max-width:620px}
.banner-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.banner-badges .badge{background:rgba(78,140,126,.16);color:#8FC0B3;border:1px solid rgba(78,140,126,.32);padding:6px 14px;font-size:12.5px}
.banner-badges .badge-ember{background:rgba(255,90,43,.16);color:#FF8A63;border-color:rgba(255,90,43,.34)}

/* 面包屑 */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:22px 0 0;font-size:13px;color:var(--tx-3)}
.crumb a{color:var(--tx-3);transition:color var(--tr)}
.crumb a:hover{color:var(--ember)}
.crumb .sep{opacity:.55}
.crumb .cur{color:var(--ember)}

/* ============ 通用板块 ============ */
.section{padding:56px 0}
@media (min-width:641px){.section{padding:72px 0}}
@media (min-width:1025px){.section{padding:96px 0}}
.section-paper{background:var(--paper);color:var(--dark-text)}
.section-tight{padding-top:32px}
@media (min-width:1025px){.section-tight{padding-top:48px}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:34px}
.section-title{font-size:clamp(24px,3vw,36px);font-weight:700;line-height:1.25;letter-spacing:-.01em}
.section-sub{margin-top:12px;font-size:15.5px;color:var(--tx-2);max-width:660px}
.section-paper .section-sub{color:var(--dark-text-2)}
.text-link{
  display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:600;
  color:var(--ember);white-space:nowrap;
}
.text-link .arrow{transition:transform var(--tr)}
.text-link:hover .arrow{transform:translateX(4px)}

/* ============ 左文右图 ============ */
.split-row{padding:34px 0;border-bottom:1px solid var(--line)}
.split-row:last-child{border-bottom:0}
.split-row .split-text{padding-top:6px}
.split-label{
  display:inline-block;font-size:12px;letter-spacing:.08em;color:var(--jade);
  padding:5px 12px;border-radius:999px;background:rgba(78,140,126,.14);
  border:1px solid rgba(78,140,126,.28);margin-bottom:16px;
}
.split-text h2{font-size:clamp(21px,2.4vw,30px);font-weight:700;line-height:1.35;letter-spacing:-.01em}
.split-text p{margin-top:16px;font-size:16px;color:var(--tx-2);line-height:1.9}
.split-text .text-link{margin-top:18px}
.split-media img{
  width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-img);
  border:1px solid var(--line);
}
@media (min-width:1025px){
  .split-row.is-reverse .split-text{order:2}
  .split-row.is-reverse .split-media{order:1}
}

/* ============ 数据条 ============ */
.data-strip{
  display:grid;grid-template-columns:repeat(2,1fr);
  border:1px solid var(--dark-line);border-radius:var(--r-card);overflow:hidden;
  background:var(--dark-line);gap:1px;
}
@media (min-width:641px){.data-strip{grid-template-columns:repeat(4,1fr)}}
.data-cell{background:var(--paper-card);padding:26px 22px;text-align:left}
.data-num{font-size:clamp(28px,3vw,40px);font-weight:800;line-height:1.1;color:#E04A1C;letter-spacing:-.02em}
.data-label{margin-top:10px;font-size:13px;letter-spacing:.06em;color:var(--dark-text-3)}
.section-paper .section-title{color:var(--dark-text)}
.section-paper .section-sub{color:var(--dark-text-2)}

/* ============ 卡片 ============ */
.card-grid-row{padding-top:4px}
.news-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;
  transition:transform var(--tr),border-color var(--tr),box-shadow var(--tr);
}
.news-card:hover,.news-card:focus-visible{
  transform:translateY(-4px);border-color:rgba(255,90,43,.4);box-shadow:var(--shadow-dark);
}
.card-cover{aspect-ratio:16/9;overflow:hidden;background:#211F27}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform var(--tr)}
.news-card:hover .card-cover img{transform:scale(1.04)}
.card-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.badge{
  display:inline-flex;align-items:center;font-size:12px;letter-spacing:.04em;
  padding:4px 11px;border-radius:999px;
  background:rgba(78,140,126,.14);color:#8FC0B3;border:1px solid rgba(78,140,126,.26);
}
.badge-ember{background:rgba(255,90,43,.14);color:#FF8A63;border-color:rgba(255,90,43,.3)}
.card-body h3{font-size:16.5px;font-weight:600;line-height:1.5}
.card-body p{font-size:14.5px;color:var(--tx-2);line-height:1.8}
.card-foot{margin-top:auto;display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--tx-3)}
.card-foot .dot{width:5px;height:5px;border-radius:50%;background:var(--ember)}
.card-col{margin-bottom:24px}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:1fr;gap:14px}
@media (min-width:1025px){.faq-grid{grid-template-columns:repeat(2,1fr);gap:16px 24px}}
.faq-item{
  position:relative;background:var(--slate);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;
  transition:border-color var(--tr),background var(--tr);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--ember);
  transform:scaleY(0);transform-origin:top;transition:transform var(--tr);
}
.faq-item.is-open{border-color:rgba(255,90,43,.32);background:#191820}
.faq-item.is-open::before{transform:scaleY(1)}
.faq-q{
  width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 20px;background:none;border:0;color:var(--tx-1);
  font-size:16px;font-weight:600;line-height:1.6;text-align:left;cursor:pointer;
  transition:color var(--tr);
}
.faq-q:hover{color:var(--ember)}
.faq-icon{position:relative;flex:0 0 16px;width:16px;height:16px;transition:transform var(--tr)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--ember);border-radius:2px}
.faq-icon::before{left:0;top:7px;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .35s var(--ease)}
.faq-item.is-open .faq-a{grid-template-rows:1fr}
.faq-a-inner{overflow:hidden}
.faq-a-inner p{padding:0 20px 20px;font-size:15px;color:var(--tx-2);line-height:1.85}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background-image:
    linear-gradient(180deg,rgba(13,12,15,.94),rgba(13,12,15,.98)),
    url('/assets/images/backpic/back-2.png');
  background-size:cover,cover;background-position:center,center;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(115deg,rgba(255,90,43,.07) 0 2px,transparent 2px 22px);
}
.cta-inner{
  position:relative;z-index:1;
  padding:64px 0;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
@media (min-width:1025px){.cta-inner{padding:88px 0}}
.cta-copy{max-width:620px}
.cta-copy h2{font-size:clamp(24px,3vw,36px);font-weight:700;line-height:1.3;letter-spacing:-.01em}
.cta-copy p{margin-top:14px;font-size:15.5px;color:var(--tx-2)}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
@media (max-width:640px){
  .cta-inner{flex-direction:column;align-items:stretch;padding:56px 0}
  .cta-actions .btn{width:100%}
}

/* ============ 页脚 ============ */
.site-footer{background:#0A090C;border-top:1px solid var(--line);padding:56px 0 28px}
.foot-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:641px){.foot-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1025px){.foot-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.foot-brand .brand-mark{width:4px;height:20px;border-radius:2px;background:var(--ember);display:inline-block}
.foot-brand .brand-text{font-size:16.5px;font-weight:800;letter-spacing:-.01em}
.foot-desc{font-size:14px;color:var(--tx-3);line-height:1.9;max-width:420px}
.foot-col h4{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--tx-2);margin-bottom:16px}
.foot-col a{display:block;font-size:14px;color:var(--tx-3);padding:6px 0;transition:color var(--tr),padding-left var(--tr)}
.foot-col a:hover{color:var(--ember);padding-left:6px}
.foot-bottom{
  margin-top:40px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--tx-3);
}
.foot-bottom .made{color:rgba(245,242,237,.28)}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .nav-main{display:none}
  .search-wrap{display:none}
  .nav-actions .btn{display:none}
  .menu-toggle{display:inline-flex}
}
@media (min-width:1025px){
  .drawer,.drawer-mask{display:none}
}
@media (max-width:640px){
  .topbar-inner{height:64px;gap:14px}
  .brand-text{font-size:15px}
  .card-col{margin-bottom:20px}
  .section-head{margin-bottom:26px}
}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
  .news-card:hover{transform:none}
}

/* roulang page: category2 */
:root{
  --ink:#0D0C0F;
  --slate:#16151A;
  --panel:#1C1B21;
  --paper:#F4F0E9;
  --paper-ink:#1A181C;
  --ember:#FF5A2B;
  --jade:#4E8C7E;
  --jade-lt:#7FC3B2;
  --brass:#D8A94B;
  --tx-1:#F5F2ED;
  --tx-2:rgba(245,242,237,.62);
  --tx-3:rgba(245,242,237,.38);
  --line:rgba(245,242,237,.10);
  --err:#E5484D;
  --ok:#3FA46A;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --shadow:0 18px 40px -20px rgba(0,0,0,.65);
  --shadow-lt:0 10px 24px -18px rgba(26,24,28,.35);
  --ease:cubic-bezier(.22,.61,.36,1);
  --t:.35s;
  --pad:20px;
  --maxw:1240px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink);
  color:var(--tx-1);
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color var(--t) var(--ease),border-color var(--t) var(--ease),background-color var(--t) var(--ease),opacity var(--t) var(--ease)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select,textarea{font:inherit}
h1,h2,h3,h4,h5,h6{margin:0;font-weight:800;line-height:1.25;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--ember);outline-offset:2px}
section[id]{scroll-margin-top:84px}
::selection{background:rgba(255,90,43,.32);color:#fff}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 var(--pad)}
.section{padding:56px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px}
.section-head h2{font-size:clamp(24px,3vw,36px);font-weight:700}
.section-head .sub{margin-top:10px;color:var(--tx-2);font-size:15px;max-width:640px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--tx-3);
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--ember)}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  background:rgba(13,12,15,.32);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
  box-shadow:0 10px 30px -24px #000;
  transition:background .3s var(--ease);
}
.site-header.is-solid{background:rgba(13,12,15,.94)}
.nav-wrap{
  display:flex;align-items:center;gap:26px;
  height:72px;max-width:1440px;margin:0 auto;padding:0 var(--pad);
  transition:height .3s var(--ease);
}
.site-header.is-solid .nav-wrap{height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;transition:transform .3s var(--ease)}
.site-header.is-solid .brand{transform:scale(.92)}
.brand-mark{width:4px;height:22px;border-radius:2px;background:var(--ember);display:block;flex:0 0 auto}
.brand-text{font-size:16px;font-weight:800;letter-spacing:.02em;white-space:nowrap}
.nav-main{display:flex;align-items:center;gap:26px;margin-left:6px}
.nav-link{position:relative;font-size:15px;color:var(--tx-2);padding:6px 0;white-space:nowrap}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--ember);transition:width var(--t) var(--ease);
}
.nav-link:hover{color:var(--tx-1)}
.nav-link:hover::after{width:100%}
.nav-link.is-active{color:var(--tx-1);font-weight:600}
.nav-link.is-active::after{width:100%}
.nav-tools{display:flex;align-items:center;gap:12px;margin-left:auto}
.icon-btn{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:10px;color:var(--tx-2);
  transition:all var(--t) var(--ease);
}
.icon-btn:hover{color:var(--ember);border-color:rgba(255,90,43,.5);background:rgba(255,90,43,.06)}
.nav-search{width:0;overflow:hidden;transition:width var(--t) var(--ease)}
.nav-tools.is-open .nav-search{width:238px}
.nav-search input{
  width:238px;height:38px;border-radius:10px;padding:0 12px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--tx-1);
  font-size:14px;transition:border-color var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.nav-search input::placeholder{color:var(--tx-3)}
.nav-search input:focus{border-color:var(--ember);box-shadow:0 0 0 4px rgba(255,90,43,.14);outline:none}
.menu-toggle{display:none}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;white-space:nowrap;
  transition:all var(--t) var(--ease);
}
.btn-primary{
  background:var(--ember);color:#fff;border-radius:999px;
  box-shadow:0 10px 26px -14px rgba(255,90,43,.75);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 16px 32px -14px rgba(255,90,43,.85)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--tx-1)}
.btn-ghost:hover{border-color:var(--ember);color:var(--ember);background:rgba(255,90,43,.06)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-block{width:100%}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--ember);font-size:14px;font-weight:600}
.text-link i{transition:transform var(--t) var(--ease);font-size:12px}
.text-link:hover i{transform:translateX(4px)}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:200;
  width:84vw;max-width:360px;padding:22px 20px 28px;
  background:rgba(22,21,26,.98);
  border-left:1px solid var(--line);
  transform:translateX(102%);
  transition:transform .35s var(--ease);
  display:flex;flex-direction:column;gap:18px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-search input{
  width:100%;height:42px;border-radius:10px;padding:0 12px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--tx-1);font-size:14px;
}
.drawer-search input::placeholder{color:var(--tx-3)}
.drawer-search input:focus{border-color:var(--ember);box-shadow:0 0 0 4px rgba(255,90,43,.14);outline:none}
.drawer-nav{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.drawer-nav a{
  padding:15px 2px;border-bottom:1px solid var(--line);
  font-size:15px;color:var(--tx-2);display:flex;align-items:center;justify-content:space-between;
}
.drawer-nav a::after{content:"\f054";font-family:"Font Awesome 6 Free";font-weight:900;font-size:11px;color:var(--tx-3)}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--ember)}
.drawer-foot{margin-top:auto;font-size:12.5px;color:var(--tx-3);line-height:1.8}
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.55);
  z-index:190;opacity:0;pointer-events:none;transition:opacity .3s var(--ease);
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}

/* ---------- banner ---------- */
.page-banner{
  position:relative;min-height:420px;display:flex;align-items:flex-end;
  padding:120px 0 54px;
  background-image:
    linear-gradient(180deg,rgba(13,12,15,.62) 0%,rgba(13,12,15,.86) 62%,rgba(13,12,15,.97) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
}
.page-banner::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--line);
}
.banner-inner{position:relative;z-index:2;max-width:760px}
.chip-ember{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;border-radius:999px;
  font-size:12.5px;letter-spacing:.06em;
  color:var(--ember);border:1px solid rgba(255,90,43,.55);
  background:rgba(255,90,43,.08);
}
.page-banner h1{
  margin:20px 0 16px;
  font-size:clamp(30px,4.6vw,52px);
  font-weight:800;letter-spacing:-.02em;line-height:1.15;
  text-align:left;
}
.page-banner .lead{color:var(--tx-2);font-size:16px;max-width:620px;line-height:1.85}
.banner-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}

.breadcrumb-row{padding:20px 0 0}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:9px;font-size:13px;color:var(--tx-3)}
.breadcrumb a{color:var(--tx-2)}
.breadcrumb a:hover{color:var(--ember)}
.breadcrumb .sep{color:var(--tx-3)}
.breadcrumb .cur{color:var(--ember)}

/* ---------- stat strip ---------- */
.stat-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--slate)}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line)}
.stat-item{background:var(--slate);padding:28px 22px}
.stat-num{
  font-size:clamp(26px,3vw,38px);font-weight:800;color:var(--ember);
  letter-spacing:-.02em;font-variant-numeric:tabular-nums;line-height:1.1;
}
.stat-label{margin-top:8px;font-size:13px;color:var(--tx-3);letter-spacing:.05em}

/* ---------- cards ---------- */
.grid-gap{margin-bottom:0}
.media-card{display:block;color:inherit;transition:transform var(--t) var(--ease)}
.media-card:hover{transform:translateY(-4px)}
.media-card .card-cover{
  position:relative;aspect-ratio:16/9;overflow:hidden;border-radius:var(--r-img);
  background:linear-gradient(135deg,#1C1B21,#16151A);
}
.media-card .card-cover img{width:100%;height:100%;object-fit:cover;transition:transform var(--t) var(--ease)}
.media-card:hover .card-cover img{transform:scale(1.04)}
.chip{
  position:absolute;right:10px;bottom:10px;
  padding:4px 10px;border-radius:999px;font-size:12px;
  color:var(--jade-lt);background:rgba(78,140,126,.16);
  border:1px solid rgba(78,140,126,.38);
}
.media-card h3{margin:15px 0 9px;font-size:17px;font-weight:600;line-height:1.45}
.media-card:hover h3{color:var(--ember)}
.media-card p{
  color:var(--tx-2);font-size:14.5px;line-height:1.85;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{display:flex;align-items:center;gap:8px;margin-top:12px;font-size:12.5px;color:var(--tx-3)}
.dot{width:5px;height:5px;border-radius:50%;background:var(--ember);flex:0 0 auto}

/* ---------- timeline ---------- */
.timeline-section{background:var(--paper);color:var(--paper-ink)}
.timeline-section .section-head h2{color:var(--paper-ink)}
.timeline-section .sub{color:rgba(26,24,28,.62)}
.timeline-section .eyebrow{color:rgba(26,24,28,.42)}
.timeline{position:relative;padding-left:30px;max-width:900px}
.timeline::before{
  content:"";position:absolute;left:5px;top:8px;bottom:8px;width:1px;
  background:rgba(26,24,28,.16);
}
.tl-item{position:relative;padding:0 0 30px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-30px;top:8px;width:11px;height:11px;border-radius:50%;
  background:var(--ember);box-shadow:0 0 0 4px rgba(255,90,43,.14);
}
.tl-date{font-size:12.5px;letter-spacing:.08em;color:rgba(26,24,28,.45);font-variant-numeric:tabular-nums}
.tl-item h3{margin:8px 0 8px;font-size:18px;font-weight:700;color:var(--paper-ink)}
.tl-item p{font-size:15px;line-height:1.85;color:rgba(26,24,28,.66)}
.tl-item a{color:#C2401A;font-weight:600}
.tl-item a:hover{color:var(--ember)}

/* ---------- FAQ ---------- */
.faq-grid{margin-top:0}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-card);background:var(--panel);
  overflow:hidden;transition:border-color var(--t) var(--ease),box-shadow var(--t) var(--ease);
  margin-bottom:20px;
}
.faq-item:hover{border-color:rgba(245,242,237,.2)}
.faq-item.is-open{border-color:rgba(255,90,43,.42);box-shadow:inset 3px 0 0 var(--ember)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;min-height:56px;padding:16px 20px;text-align:left;
  font-size:15.5px;font-weight:600;color:var(--tx-1);line-height:1.6;
}
.faq-icon{position:relative;flex:0 0 16px;width:16px;height:16px;transition:transform var(--t) var(--ease)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--ember);border-radius:2px}
.faq-icon::before{left:0;top:7.25px;width:16px;height:1.5px}
.faq-icon::after{left:7.25px;top:0;width:1.5px;height:16px}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows var(--t) var(--ease)}
.faq-item.is-open .faq-a{grid-template-rows:1fr}
.faq-a>div{overflow:hidden}
.faq-a p{padding:0 20px 20px;color:var(--tx-2);font-size:15px;line-height:1.85}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  background:
    repeating-linear-gradient(115deg,rgba(255,90,43,.08) 0 2px,transparent 2px 14px),
    var(--ink);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:64px 0;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(22px,2.8vw,34px);font-weight:700}
.cta-inner .cta-sub{margin-top:12px;color:var(--tx-2);font-size:15px;max-width:620px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{background:#0A090C;border-top:1px solid var(--line);padding:64px 0 28px;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.foot-brand .brand-text{font-size:15.5px;font-weight:800}
.foot-desc{color:var(--tx-2);font-size:14px;line-height:1.9;max-width:360px}
.foot-col h4{font-size:14px;font-weight:600;color:var(--tx-1);margin-bottom:16px;letter-spacing:.04em}
.foot-col a{display:block;font-size:14px;color:var(--tx-2);padding:6px 0}
.foot-col a:hover{color:var(--ember)}
.foot-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--tx-3);
}
.foot-bottom .made{color:var(--tx-3)}

/* ---------- responsive ---------- */
@media (min-width:641px){
  :root{--pad:28px}
  .section{padding:72px 0}
}
@media (min-width:1025px){
  :root{--pad:40px}
  .section{padding:96px 0}
  .cta-band{padding:80px 0}
}
@media (max-width:1024px){
  .nav-main{display:none}
  .nav-search,.nav-tools .btn-sm{display:none}
  .menu-toggle{display:inline-flex}
  .timeline{padding-left:26px}
  .timeline::before{left:1px}
  .tl-item::before{left:-26px}
}
@media (max-width:900px){
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:640px){
  .page-banner{padding:110px 0 44px;min-height:380px}
  .banner-actions .btn{width:100%}
  .section-head{flex-direction:column;align-items:flex-start}
  .foot-grid{grid-template-columns:1fr;gap:24px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .foot-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition-duration:.01ms!important}
  .media-card:hover{transform:none}
  .media-card:hover .card-cover img{transform:none}
}