/* roulang page: index */
:root{
  --ink-900:#0B0D10;
  --ink-800:#111419;
  --ink-700:#171B21;
  --ink-600:#1F242C;
  --line:rgba(255,255,255,.08);
  --text-hi:#F4EFE8;
  --text-mid:#A7AEB8;
  --text-low:#6E7681;
  --brand:#FF6B35;
  --brand-2:#FF3D6E;
  --brand-grad:linear-gradient(120deg,#FF6B35,#FF3D6E);
  --mint:#2BC7AF;
  --warn:#FFC24B;
  --paper:#F4EFE8;
  --r-card:20px;
  --r-lg:28px;
  --r-sm:16px;
  --shadow:0 18px 48px rgba(0,0,0,.45);
  --pad:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text-hi);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font-family:inherit;border:0;background:none;cursor:pointer;color:inherit}
input,textarea{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 var(--pad)}
.section{padding:88px 0}
.section-tight{padding:64px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.16em;color:var(--brand);
  font-weight:600;text-transform:none;
}
.eyebrow::before{content:"";width:20px;height:2px;background:var(--brand-grad);border-radius:2px}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.sec-head h2{font-size:clamp(22px,2.6vw,34px);font-weight:700;line-height:1.3;letter-spacing:-.01em;margin-top:10px}
.sec-desc{color:var(--text-mid);font-size:15px;max-width:640px;margin-top:10px}
.muted{color:var(--text-mid)}
.tiny{font-size:13px;color:var(--text-low)}
.num{font-variant-numeric:tabular-nums;font-weight:700}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 28px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand-grad);color:#12100F;box-shadow:0 10px 26px rgba(255,61,110,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(255,61,110,.4);filter:brightness(1.06)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--text-hi);border:1px solid rgba(244,239,232,.28)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{height:38px;padding:0 20px;font-size:14px}
.btn-block{width:100%}
.text-link{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--text-hi);
  transition:color .2s ease;
}
.text-link .arw{transition:transform .2s ease}
.text-link:hover{color:var(--brand)}
.text-link:hover .arw{transform:translateX(4px)}

/* ============ 导航 ============ */
.site-head{
  position:sticky;top:0;z-index:200;
  height:68px;display:flex;align-items:center;
  background:transparent;
  transition:background .25s ease,backdrop-filter .25s ease,border-color .25s ease;
  border-bottom:1px solid transparent;
}
.site-head.is-scrolled{
  background:rgba(11,13,16,.92);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.head-inner{display:flex;align-items:center;gap:20px;width:100%;max-width:1280px;margin:0 auto;padding:0 var(--pad)}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:30px;height:30px;border-radius:9px;background:var(--brand-grad);
  position:relative;flex-shrink:0;
  box-shadow:0 6px 18px rgba(255,61,110,.35);
}
.brand-mark::after{
  content:"";position:absolute;inset:9px;border-radius:3px;
  background:rgba(11,13,16,.55);
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.brand-text em{font-style:normal;background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.chip-nav{
  display:flex;align-items:center;gap:8px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
  flex:1 1 auto;padding:4px 2px;
}
.chip-nav::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;
  border-radius:999px;border:1px solid var(--line);
  font-size:13.5px;font-weight:600;color:var(--text-mid);white-space:nowrap;
  transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease;
}
.chip:hover{color:var(--text-hi);border-color:rgba(255,107,53,.5);transform:translateY(-1px)}
.chip.is-active{background:var(--brand-grad);border-color:transparent;color:#12100F;box-shadow:0 8px 20px rgba(255,61,110,.26)}
.chip-solid{background:rgba(255,107,53,.16);border-color:rgba(255,107,53,.36);color:var(--brand)}
.head-actions{display:flex;align-items:center;gap:16px;flex-shrink:0;padding-left:16px;border-left:1px solid var(--line)}
.head-link{font-size:13.5px;color:var(--text-mid);transition:color .2s ease}
.head-link:hover{color:var(--brand)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  flex-direction:column;align-items:center;justify-content:center;gap:5px;flex-shrink:0;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-hi);border-radius:2px;transition:transform .25s ease,opacity .25s ease}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 抽屉 */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(340px,86vw);
  background:var(--ink-800);border-left:1px solid var(--line);
  z-index:300;padding:88px 24px 32px;
  transform:translateX(100%);transition:transform .3s ease;
  display:flex;flex-direction:column;gap:10px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer .chip{height:46px;justify-content:flex-start;font-size:15px;width:100%}
.drawer .btn{margin-top:16px}
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:250;
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
body.no-scroll{overflow:hidden}

/* ============ Hero ============ */
.hero{
  position:relative;min-height:620px;display:flex;align-items:center;
  background-image:url(/assets/images/backpic/back-1.webp);
  background-size:cover;background-position:center;
  overflow:hidden;margin-top:-68px;padding:150px 0 88px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(11,13,16,.96) 0%,rgba(11,13,16,.86) 34%,rgba(11,13,16,.28) 72%,rgba(11,13,16,.1) 100%),
    linear-gradient(180deg,rgba(11,13,16,.72) 0%,rgba(11,13,16,.18) 42%,rgba(11,13,16,.96) 100%);
}
.hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,107,53,.35),rgba(255,61,110,0) 68%);
  filter:blur(10px);pointer-events:none;
}
.hero-inner{position:relative;z-index:2;width:100%}
.hero-copy{max-width:640px}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;
  height:34px;padding:0 16px;border-radius:999px;
  border:1px solid rgba(255,107,53,.42);background:rgba(255,107,53,.12);
  font-size:13px;font-weight:600;color:#FFB294;margin-bottom:22px;
}
.hero-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px rgba(255,107,53,.18)}
.hero h1{
  font-size:clamp(30px,4.4vw,52px);font-weight:700;line-height:1.15;letter-spacing:-.02em;
  margin-bottom:18px;
}
.hero-sub{font-size:clamp(15px,1.6vw,18px);color:var(--text-mid);line-height:1.85;max-width:560px;margin-bottom:30px}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px}
.badge-row{display:flex;flex-wrap:wrap;align-items:center;gap:0}
.data-badge{
  display:flex;flex-direction:column;gap:2px;padding:0 22px;
  border-left:1px solid var(--line);
}
.data-badge:first-child{border-left:0;padding-left:0}
.data-badge .val{font-size:20px;font-weight:700;font-variant-numeric:tabular-nums;color:var(--mint);line-height:1.3}
.data-badge .val.warn{color:var(--warn)}
.data-badge .val.brand{color:var(--brand)}
.data-badge .lbl{font-size:12.5px;color:var(--text-low)}
.hero-thumbs{position:absolute;right:24px;bottom:88px;z-index:3;display:flex;gap:14px}
.hero-thumbs img{
  width:64px;height:64px;border-radius:50%;object-fit:cover;
  border:2px solid rgba(244,239,232,.18);box-shadow:var(--shadow);
  transition:transform .2s ease,border-color .2s ease;
}
.hero-thumbs img:hover{transform:translateY(-4px);border-color:var(--brand)}

/* ============ 横滑片库 ============ */
.track-nav{display:flex;gap:10px}
.circle-btn{
  width:42px;height:42px;border-radius:50%;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:20px;color:var(--text-mid);
  transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease;
}
.circle-btn:hover{color:var(--brand);border-color:var(--brand);background:rgba(255,107,53,.1);transform:translateY(-2px)}
.track{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 4px 22px;scrollbar-width:none;-ms-overflow-style:none;
}
.track::-webkit-scrollbar{display:none}
.poster-card{
  position:relative;flex:0 0 240px;height:340px;border-radius:var(--r-card);
  overflow:hidden;scroll-snap-align:start;border:1px solid var(--line);
  background:var(--ink-700);box-shadow:0 12px 30px rgba(0,0,0,.35);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.poster-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:rgba(255,107,53,.35)}
.poster-card img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.poster-card:hover img{transform:scale(1.05)}
.poster-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,13,16,.05) 30%,rgba(11,13,16,.62) 66%,rgba(11,13,16,.96) 100%);
}
.poster-body{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:18px}
.poster-body h3{font-size:17px;font-weight:600;line-height:1.45;margin:10px 0 6px}
.poster-body p{font-size:13px;color:var(--text-mid);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ============ CMS 资讯列表 ============ */
.news-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--ink-700);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:rgba(255,107,53,.35)}
.news-card:focus-visible{border-color:var(--brand)}
.news-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--ink-600)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.news-card:hover .news-thumb img{transform:scale(1.05)}
.news-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,13,16,0) 55%,rgba(11,13,16,.7) 100%)}
.news-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1 1 auto;gap:10px}
.news-body h3{
  font-size:18px;font-weight:600;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body p{
  font-size:14px;color:var(--text-mid);line-height:1.8;flex:1 1 auto;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:14px;border-top:1px solid var(--line)}
.news-meta .time{font-size:13px;color:var(--text-low);font-variant-numeric:tabular-nums}
.news-card.is-feature .news-thumb{aspect-ratio:16/9}
.news-card.is-feature .news-body h3{font-size:21px}
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;
  padding:56px 24px;border:1px dashed var(--line);border-radius:var(--r-card);
  background:var(--ink-800);text-align:center;
}
.empty-state .e-icon{
  width:52px;height:52px;border-radius:16px;background:rgba(255,107,53,.14);
  display:flex;align-items:center;justify-content:center;color:var(--brand);font-size:22px;
}
.empty-state p{color:var(--text-mid);font-size:15px}

/* ============ 热播推荐大卡 ============ */
.feature-card{
  display:flex;height:100%;background:var(--ink-700);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.feature-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:rgba(255,107,53,.3)}
.feature-media{position:relative;flex:0 0 58%;overflow:hidden;background:var(--ink-600)}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.feature-card:hover .feature-media img{transform:scale(1.04)}
.feature-media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(11,13,16,0) 55%,rgba(23,27,33,.85) 100%)}
.feature-body{padding:26px 24px;display:flex;flex-direction:column;gap:12px;justify-content:center;border-left:2px solid transparent;transition:border-color .2s ease}
.feature-card:hover .feature-body{border-left-color:var(--brand)}
.feature-body h3{font-size:20px;font-weight:600;line-height:1.45}
.feature-body p{font-size:14px;color:var(--text-mid);line-height:1.8}
.mini-badges{display:flex;flex-wrap:wrap;gap:8px;margin:2px 0 6px}
.mini-badge{
  font-size:12.5px;font-weight:700;padding:3px 10px;border-radius:999px;
  color:var(--mint);background:rgba(43,199,175,.12);border:1px solid rgba(43,199,175,.25);
  font-variant-numeric:tabular-nums;
}
.mini-badge.warn{color:var(--warn);background:rgba(255,194,75,.12);border-color:rgba(255,194,75,.25)}
.mini-badge.brand{color:var(--brand);background:rgba(255,107,53,.12);border-color:rgba(255,107,53,.26)}

/* ============ 频道分区 ============ */
.zone-big{
  display:flex;flex-direction:column;height:100%;
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  background:var(--ink-700);transition:transform .2s ease,box-shadow .2s ease;
}
.zone-big:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.zone-big .zm{position:relative;aspect-ratio:16/9;overflow:hidden}
.zone-big .zm img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.zone-big:hover .zm img{transform:scale(1.04)}
.zone-big .zm::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,13,16,.1) 40%,rgba(23,27,33,.95) 100%)}
.zone-big .zb{padding:22px 24px 26px}
.zone-big h3{font-size:22px;font-weight:700;margin:12px 0 8px}
.zone-big p{font-size:14px;color:var(--text-mid);margin-bottom:16px}
.zone-list{
  height:100%;display:flex;flex-direction:column;gap:14px;
}
.zone-item{
  background:var(--ink-700);border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px 20px;flex:1 1 auto;display:flex;flex-direction:column;gap:10px;
  transition:border-color .2s ease,transform .2s ease,background .2s ease;
}
.zone-item:hover{border-color:rgba(255,107,53,.32);transform:translateY(-3px);background:var(--ink-600)}
.zone-item h3{font-size:17px;font-weight:600;display:flex;align-items:center;justify-content:space-between;gap:10px}
.zone-item h3 span{font-size:12px;color:var(--brand);font-weight:600}
.zone-item ul{display:flex;flex-direction:column;gap:7px}
.zone-item li{font-size:13.5px;color:var(--text-mid);display:flex;align-items:center;gap:8px;line-height:1.7}
.zone-item li::before{content:"";width:5px;height:5px;border-radius:2px;background:var(--brand);flex-shrink:0}

/* ============ 三步 ============ */
.step-card{
  background:var(--ink-700);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;height:100%;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.step-card:hover{transform:translateY(-5px);border-color:rgba(255,107,53,.32);box-shadow:var(--shadow)}
.step-no{
  font-size:34px;font-weight:700;font-variant-numeric:tabular-nums;line-height:1;
  background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:14px;letter-spacing:-.02em;
}
.step-card h3{font-size:18px;font-weight:600;margin-bottom:8px}
.step-card p{font-size:14px;color:var(--text-mid);line-height:1.8}

/* ============ CTA ============ */
.cta-panel{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:var(--brand-grad);
  padding:56px 48px;color:#160D09;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-panel::before,.cta-panel::after{content:"";position:absolute;border-radius:50%;background:rgba(255,255,255,.28);filter:blur(2px)}
.cta-panel::before{width:260px;height:260px;right:-60px;top:-100px;opacity:.35}
.cta-panel::after{width:180px;height:180px;left:38%;bottom:-110px;opacity:.22}
.cta-panel h2{position:relative;z-index:2;font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.35;letter-spacing:-.01em}
.cta-panel p{position:relative;z-index:2;font-size:14.5px;margin-top:8px;color:rgba(22,13,9,.78)}
.cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap}
.cta-panel .btn-primary{background:#160D09;color:#F4EFE8;box-shadow:0 12px 30px rgba(0,0,0,.28)}
.cta-panel .btn-primary:hover{background:#241511}
.cta-panel .btn-ghost{border-color:rgba(22,13,9,.42);color:#160D09}
.cta-panel .btn-ghost:hover{border-color:#160D09;background:rgba(22,13,9,.1);color:#160D09}

/* ============ FAQ 浅色区 ============ */
.paper-section{background:var(--paper);color:var(--ink-900);padding:88px 0}
.paper-section .eyebrow{color:#C2401C}
.paper-section .sec-head h2{color:var(--ink-900)}
.paper-section .sec-desc{color:#5A5F66}
.faq-list{max-width:860px;margin:0 auto}
.faq-item{border-bottom:1px solid rgba(11,13,16,.14)}
.faq-item:first-child{border-top:1px solid rgba(11,13,16,.14)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;text-align:left;font-size:16px;font-weight:600;color:var(--ink-900);
  transition:color .2s ease;
}
.faq-q:hover{color:#C2401C}
.faq-ic{
  width:26px;height:26px;flex-shrink:0;border-radius:50%;border:1px solid rgba(11,13,16,.24);
  display:flex;align-items:center;justify-content:center;font-size:15px;line-height:1;
  transition:transform .25s ease,background .25s ease,color .25s ease,border-color .25s ease;
  color:#4A4F56;
}
.faq-item.is-open .faq-ic{transform:rotate(45deg);background:var(--brand-grad);border-color:transparent;color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{font-size:14px;line-height:1.9;color:#4A4F56;padding:0 4px 22px;max-width:760px}
.faq-item.is-open .faq-a{max-height:260px}

/* ============ 页脚 ============ */
.site-foot{background:var(--ink-800);border-top:1px solid var(--line);padding:64px 0 0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.foot-brand .brand{margin-bottom:14px}
.foot-brand p{font-size:14px;color:var(--text-mid);line-height:1.85;max-width:300px}
.social-row{display:flex;gap:10px;margin-top:18px}
.social-btn{
  width:38px;height:38px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--text-mid);font-size:14px;
  transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease;
}
.social-btn:hover{color:var(--brand);border-color:var(--brand);background:rgba(255,107,53,.1);transform:translateY(-2px)}
.foot-col h4{font-size:14px;font-weight:700;margin-bottom:16px;letter-spacing:.04em;color:var(--text-hi)}
.foot-col ul{display:flex;flex-direction:column;gap:11px}
.foot-col a,.foot-col li{font-size:13.5px;color:var(--text-mid);transition:color .2s ease}
.foot-col a:hover{color:var(--brand)}
.foot-bottom{
  margin-top:48px;border-top:1px solid var(--line);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-low);
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .chip-nav{display:none}
  .head-actions .head-link{display:none}
  .nav-toggle{display:flex}
  .hero{min-height:auto;padding:132px 0 72px}
  .hero-thumbs{display:none}
  .section{padding:64px 0}
  .paper-section{padding:64px 0}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .feature-media{flex:0 0 48%}
}
@media (max-width:768px){
  :root{--pad:18px}
  .section{padding:56px 0}
  .paper-section{padding:56px 0}
  .feature-card{flex-direction:column}
  .feature-media{flex:0 0 auto;aspect-ratio:16/10}
  .feature-media::after{background:linear-gradient(180deg,rgba(11,13,16,0) 50%,rgba(23,27,33,.9) 100%)}
  .feature-body{border-left:0;border-top:2px solid transparent;padding:22px}
  .feature-card:hover .feature-body{border-left-color:transparent;border-top-color:var(--brand)}
  .cta-panel{padding:40px 26px;gap:24px}
  .data-badge{padding:0 16px}
}
@media (max-width:640px){
  :root{--pad:16px}
  .head-inner{gap:12px}
  .brand-text{font-size:15px}
  .head-actions{padding-left:0;border-left:0}
  .btn{height:42px;padding:0 22px;font-size:14.5px}
  .hero{padding:120px 0 64px}
  .hero-btns .btn{width:100%}
  .hero-btns{flex-direction:column;align-items:stretch}
  .badge-row{gap:14px 0;flex-wrap:wrap}
  .data-badge{padding:0 14px}
  .data-badge .val{font-size:17px}
  .poster-card{flex:0 0 160px;height:230px}
  .poster-body{padding:14px}
  .poster-body h3{font-size:14.5px;margin:8px 0 4px}
  .poster-body p{font-size:12px}
  .track-nav{display:none}
  .sec-head{margin-bottom:24px}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn{width:100%}
  .faq-q{font-size:15px;padding:18px 2px}
  .poster-card:hover{transform:none}
}

/* roulang page: category1 */
:root{
  --ink-900:#0B0D10;
  --ink-800:#111419;
  --ink-700:#171B21;
  --ink-600:#1F242C;
  --line:rgba(255,255,255,.08);
  --text-hi:#F4EFE8;
  --text-mid:#A7AEB8;
  --text-low:#6E7681;
  --brand:#FF6B35;
  --brand-2:#FF3D6E;
  --brand-grad:linear-gradient(120deg,#FF6B35,#FF3D6E);
  --mint:#2BC7AF;
  --warn:#FFC24B;
  --paper:#F4EFE8;
  --r-card:20px;
  --r-big:28px;
  --r-img:16px;
  --shadow:0 18px 48px rgba(0,0,0,.45);
  --shadow-up:0 24px 60px rgba(0,0,0,.6);
  --sp:88px;
  --head-h:68px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text-hi);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;border:0;background:none;cursor:pointer;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}

.container{max-width:1280px;margin:0 auto;padding:0 24px;width:100%;}
.num{font-variant-numeric:tabular-nums;font-weight:700;}

/* ============ 顶部导航 ============ */
.site-head{
  position:sticky;top:0;z-index:80;
  background:transparent;
  transition:background .25s ease,backdrop-filter .25s ease,border-color .25s ease;
  border-bottom:1px solid transparent;
}
.site-head.is-scrolled{
  background:rgba(11,13,16,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.head-inner{
  max-width:1280px;margin:0 auto;padding:0 24px;
  height:var(--head-h);
  display:flex;align-items:center;gap:20px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none;}
.brand-mark{
  width:26px;height:26px;border-radius:8px;
  background:var(--brand-grad);
  box-shadow:0 6px 18px rgba(255,107,53,.35);
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.01em;color:var(--text-hi);white-space:nowrap;}
.brand-text em{font-style:normal;background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;}

.chip-nav{
  display:flex;align-items:center;gap:8px;
  overflow-x:auto;scrollbar-width:none;
  flex:1 1 auto;min-width:0;
  padding:4px 2px;
}
.chip-nav::-webkit-scrollbar{display:none;}
.chip{
  flex:none;
  display:inline-flex;align-items:center;
  height:34px;padding:0 15px;
  border-radius:999px;
  border:1px solid var(--line);
  color:var(--text-mid);
  font-size:13.5px;font-weight:500;
  white-space:nowrap;
  transition:all .2s ease;
}
.chip:hover{color:var(--text-hi);border-color:rgba(255,107,53,.45);}
.chip.is-active{
  background:var(--brand-grad);
  border-color:transparent;
  color:#15100D;
  font-weight:700;
  box-shadow:0 8px 22px rgba(255,61,110,.28);
}
.head-actions{
  display:flex;align-items:center;gap:14px;flex:none;
  padding-left:18px;border-left:1px solid var(--line);
}
.head-link{font-size:13.5px;color:var(--text-mid);}
.head-link:hover{color:var(--text-hi);}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);flex-direction:column;justify-content:center;align-items:center;gap:5px;}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-hi);border-radius:2px;transition:.25s ease;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 26px;border-radius:999px;
  font-size:14.5px;font-weight:600;line-height:1;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn-sm{height:36px;padding:0 18px;font-size:13.5px;}
.btn-primary{background:var(--brand-grad);color:#15100D;box-shadow:0 10px 26px rgba(255,61,110,.28);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(255,61,110,.4);color:#15100D;}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;border:1px solid rgba(244,239,232,.28);color:var(--text-hi);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:14px;font-weight:600;}
.btn-text i{transition:transform .2s ease;}
.btn-text:hover i{transform:translateX(4px);}

/* ============ 面包屑 ============ */
.crumb{padding:22px 0 0;font-size:13px;color:var(--text-low);display:flex;flex-wrap:wrap;gap:6px;align-items:center;}
.crumb a{color:var(--text-low);}
.crumb a:hover{color:var(--brand);}
.crumb span.sep{color:var(--text-low);opacity:.6;}
.crumb .now{color:var(--text-hi);}

/* ============ 分类 Hero ============ */
.cat-hero{position:relative;margin-top:16px;border-radius:var(--r-big);overflow:hidden;border:1px solid var(--line);}
.cat-hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  transform:scale(1.02);
}
.cat-hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(11,13,16,.95) 0%,rgba(11,13,16,.82) 46%,rgba(11,13,16,.35) 100%),
             linear-gradient(0deg,rgba(11,13,16,.96) 0%,rgba(11,13,16,0) 55%);
}
.cat-hero-inner{position:relative;z-index:2;padding:64px 48px;max-width:720px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;border-radius:999px;
  background:rgba(255,107,53,.12);
  border:1px solid rgba(255,107,53,.35);
  color:#FFB798;font-size:12.5px;font-weight:600;letter-spacing:.02em;
  margin-bottom:18px;
}
.hero-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--brand-grad);box-shadow:0 0 0 4px rgba(255,107,53,.16);}
.cat-hero h1{
  font-size:clamp(30px,4.4vw,52px);
  font-weight:700;line-height:1.15;letter-spacing:-.02em;
  margin-bottom:14px;
}
.cat-hero .lede{font-size:16px;color:var(--text-mid);max-width:560px;line-height:1.8;}
.cat-hero .hero-acts{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}

/* ============ 数据徽章 ============ */
.stat-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:0;
  margin-top:26px;
  border:1px solid var(--line);
  border-radius:18px;
  background:rgba(23,27,33,.72);
  backdrop-filter:blur(8px);
  padding:14px 6px;
}
.stat{
  flex:1 1 140px;min-width:130px;
  padding:4px 20px;
  border-left:1px solid var(--line);
}
.stat:first-child{border-left:0;}
.stat .v{font-variant-numeric:tabular-nums;font-weight:700;font-size:22px;color:var(--text-hi);line-height:1.3;}
.stat .v em{font-style:normal;font-size:13px;color:var(--mint);margin-left:4px;}
.stat .k{font-size:12.5px;color:var(--text-low);}

/* ============ 板块通用 ============ */
.section{padding:var(--sp) 0 0;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px;flex-wrap:wrap;}
.sec-head h2{font-size:clamp(22px,2.6vw,34px);font-weight:700;letter-spacing:-.01em;line-height:1.25;}
.sec-head .sub{font-size:14px;color:var(--text-low);margin-top:8px;}

/* ============ 筛选 ============ */
.filter-row{
  display:flex;gap:10px;overflow-x:auto;padding:2px 0 6px;
  scrollbar-width:none;margin-bottom:26px;
}
.filter-row::-webkit-scrollbar{display:none;}
.f-chip{
  flex:none;height:36px;padding:0 18px;border-radius:999px;
  display:inline-flex;align-items:center;
  border:1px solid var(--line);color:var(--text-mid);
  font-size:13.5px;transition:all .2s ease;
}
.f-chip:hover{color:var(--text-hi);border-color:rgba(255,107,53,.45);}
.f-chip.is-on{background:var(--brand-grad);border-color:transparent;color:#15100D;font-weight:700;}

/* ============ 海报网格 ============ */
.poster-card{height:100%;}
.poster-link{display:block;height:100%;}
.poster-media{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  aspect-ratio:3/4;background:var(--ink-700);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.poster-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.poster-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,13,16,.05) 30%,rgba(11,13,16,.55) 66%,rgba(11,13,16,.94) 100%);
}
.poster-link:hover .poster-media{transform:translateY(-6px);box-shadow:var(--shadow-up);border-color:rgba(255,107,53,.35);}
.poster-link:hover .poster-media img{transform:scale(1.05);}
.poster-tag{
  position:absolute;top:14px;left:14px;z-index:3;
  height:26px;padding:0 12px;border-radius:999px;
  display:inline-flex;align-items:center;
  background:rgba(11,13,16,.72);
  border:1px solid rgba(244,239,232,.2);
  color:var(--text-hi);font-size:12px;font-weight:600;
  backdrop-filter:blur(6px);
}
.poster-cap{position:absolute;left:18px;right:18px;bottom:16px;z-index:3;}
.poster-cap h3{font-size:17px;font-weight:600;line-height:1.4;margin-bottom:6px;}
.poster-cap p{font-size:12.5px;color:var(--text-mid);line-height:1.6;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.poster-steps{margin-top:8px;font-size:12px;color:var(--mint);font-weight:600;font-variant-numeric:tabular-nums;}

/* ============ 分页 ============ */
.pager{display:flex;justify-content:center;align-items:center;gap:8px;margin-top:44px;flex-wrap:wrap;}
.page-num{
  min-width:40px;height:40px;padding:0 12px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--text-mid);
  font-size:14px;font-variant-numeric:tabular-nums;transition:all .2s ease;
}
.page-num:hover{border-color:rgba(255,107,53,.5);color:var(--text-hi);}
.page-num.is-current{background:var(--brand-grad);border-color:transparent;color:#15100D;font-weight:700;}
.page-num.is-off{opacity:.38;pointer-events:none;}

/* ============ 流程 ============ */
.flow-grid{display:grid;gap:20px;grid-template-columns:repeat(4,1fr);}
.flow-item{
  position:relative;
  background:var(--ink-700);border:1px solid var(--line);
  border-radius:var(--r-card);padding:24px 20px;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.flow-item:hover{transform:translateY(-4px);border-color:rgba(255,107,53,.35);box-shadow:var(--shadow);}
.flow-no{
  font-variant-numeric:tabular-nums;font-weight:700;font-size:13px;
  color:var(--brand);letter-spacing:.1em;margin-bottom:12px;
}
.flow-item h3{font-size:16px;font-weight:600;margin-bottom:8px;}
.flow-item p{font-size:13.5px;color:var(--text-mid);line-height:1.75;}

/* ============ 适用场景 ============ */
.scene-wrap{
  display:grid;grid-template-columns:1fr 1fr;gap:20px;
}
.scene-card{
  display:flex;gap:18px;align-items:flex-start;
  background:var(--ink-800);border:1px solid var(--line);
  border-radius:var(--r-card);padding:22px;
  transition:border-color .2s ease,background .2s ease;
}
.scene-card:hover{border-color:rgba(255,107,53,.32);background:var(--ink-700);}
.scene-ico{
  flex:none;width:46px;height:46px;border-radius:14px;
  background:rgba(255,107,53,.12);border:1px solid rgba(255,107,53,.3);
  color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:18px;
}
.scene-card h3{font-size:16px;font-weight:600;margin-bottom:6px;}
.scene-card p{font-size:13.5px;color:var(--text-mid);line-height:1.75;}

/* ============ FAQ（浅色反向区块） ============ */
.faq-block{
  margin-top:var(--sp);
  background:var(--paper);
  border-radius:var(--r-big);
  padding:56px 44px;
  color:var(--ink-900);
}
.faq-block h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;color:var(--ink-900);line-height:1.25;}
.faq-block .sub{color:#5C5A55;font-size:14px;margin-top:8px;}
.faq-list{margin-top:28px;border-top:1px solid rgba(11,13,16,.12);}
.faq-item{border-bottom:1px solid rgba(11,13,16,.12);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 2px;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink-900);
  transition:color .2s ease;
}
.faq-q:hover{color:#C2410C;}
.faq-q .ic{
  flex:none;width:26px;height:26px;border-radius:50%;
  border:1px solid rgba(11,13,16,.25);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;line-height:1;color:inherit;
  transition:transform .25s ease,border-color .25s ease;
}
.faq-item.is-open .faq-q .ic{transform:rotate(45deg);border-color:#FF6B35;color:#FF6B35;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a p{padding:0 2px 20px;font-size:14px;line-height:1.9;color:#4A4844;max-width:760px;}

/* ============ CTA ============ */
.cta-panel{
  position:relative;overflow:hidden;
  margin-top:var(--sp);
  border-radius:var(--r-big);
  background:var(--brand-grad);
  padding:52px 48px;
  color:#150D0A;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-panel::before,.cta-panel::after{
  content:"";position:absolute;border-radius:50%;
  background:rgba(255,255,255,.22);filter:blur(38px);pointer-events:none;
}
.cta-panel::before{width:240px;height:240px;left:-70px;top:-90px;}
.cta-panel::after{width:200px;height:200px;right:-60px;bottom:-110px;}
.cta-copy{position:relative;z-index:2;max-width:620px;}
.cta-copy h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.3;letter-spacing:-.01em;}
.cta-copy p{margin-top:10px;font-size:14.5px;color:rgba(21,13,10,.78);line-height:1.7;}
.cta-acts{position:relative;z-index:2;display:flex;gap:12px;flex-wrap:wrap;}
.cta-acts .btn-dark{background:#150D0A;color:var(--paper);box-shadow:0 12px 30px rgba(0,0,0,.28);}
.cta-acts .btn-dark:hover{transform:translateY(-2px);color:var(--paper);box-shadow:0 18px 38px rgba(0,0,0,.36);}
.cta-acts .btn-line{border:1px solid rgba(21,13,10,.45);color:#150D0A;background:transparent;}
.cta-acts .btn-line:hover{background:rgba(21,13,10,.08);color:#150D0A;border-color:#150D0A;}

/* ============ 页脚 ============ */
.site-foot{background:var(--ink-800);border-top:1px solid var(--line);margin-top:var(--sp);}
.foot-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;
  padding:56px 0 40px;
}
.foot-brand p{font-size:13.5px;color:var(--text-mid);line-height:1.85;margin-top:14px;max-width:300px;}
.social-row{display:flex;gap:10px;margin-top:18px;}
.social-btn{
  width:36px;height:36px;border-radius:50%;
  border:1px solid var(--line);color:var(--text-mid);
  display:flex;align-items:center;justify-content:center;font-size:14px;
  transition:all .2s ease;
}
.social-btn:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.foot-col h4{font-size:14px;font-weight:600;margin-bottom:16px;color:var(--text-hi);}
.foot-col ul li{font-size:13.5px;color:var(--text-mid);line-height:2.1;}
.foot-col ul li a{color:var(--text-mid);}
.foot-col ul li a:hover{color:var(--brand);}
.foot-bottom{
  border-top:1px solid var(--line);
  padding:20px 0 28px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:12.5px;color:var(--text-low);
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  :root{--sp:56px;}
  .flow-grid{grid-template-columns:repeat(2,1fr);}
  .scene-wrap{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cat-hero-inner{padding:48px 32px;}
  .chip-nav{gap:6px;}
  .head-actions .head-link{display:none;}
}
@media (max-width:768px){
  .head-inner{gap:12px;}
  .head-actions{display:none;}
  .nav-toggle{display:flex;margin-left:auto;}
  .chip-nav{
    position:fixed;top:0;right:0;height:100vh;width:min(300px,82vw);
    background:rgba(11,13,16,.98);
    backdrop-filter:blur(18px);
    flex-direction:column;align-items:stretch;justify-content:flex-start;
    padding:88px 22px 24px;gap:10px;
    transform:translateX(105%);
    transition:transform .28s ease;
    border-left:1px solid var(--line);
    z-index:90;overflow-y:auto;
  }
  .site-head.nav-open .chip-nav{transform:translateX(0);}
  .chip{height:44px;justify-content:center;font-size:15px;}
  .site-head.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .site-head.nav-open .nav-toggle span:nth-child(2){opacity:0;}
  .site-head.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
  .cat-hero-inner{padding:40px 22px;}
  .stat{padding:4px 14px;flex:1 1 45%;}
  .stat:nth-child(3){border-left:0;}
  .faq-block{padding:36px 22px;border-radius:var(--r-card);}
  .cta-panel{padding:34px 22px;flex-direction:column;align-items:flex-start;}
  .cta-acts{width:100%;}
  .cta-acts .btn{flex:1 1 100%;}
}
@media (max-width:640px){
  :root{--sp:44px;--head-h:60px;}
  .container{padding:0 16px;}
  .head-inner{padding:0 16px;}
  .brand-text{font-size:15px;}
  .flow-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr;gap:26px;padding:40px 0 28px;}
  .cat-hero{margin-top:12px;border-radius:var(--r-card);}
  .poster-media{border-radius:16px;}
  .pager{gap:6px;}
  .page-num{min-width:36px;height:36px;font-size:13px;}
}

/* roulang page: article */
:root{
  --ink-900:#0B0D10;
  --ink-800:#111419;
  --ink-700:#171B21;
  --ink-600:#1F242C;
  --line:rgba(255,255,255,.08);
  --text-hi:#F4EFE8;
  --text-mid:#A7AEB8;
  --text-low:#6E7681;
  --brand:#FF6B35;
  --brand-2:#FF3D6E;
  --brand-grad:linear-gradient(120deg,#FF6B35,#FF3D6E);
  --mint:#2BC7AF;
  --warn:#FFC24B;
  --paper:#F4EFE8;
  --r-card:20px;
  --r-panel:28px;
  --r-img:16px;
  --shadow:0 18px 48px rgba(0,0,0,.45);
  --container:1280px;
  --font:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text-hi);
  background:var(--ink-900);
  background-image:radial-gradient(900px 520px at 82% -8%, rgba(255,61,110,.14), transparent 60%),radial-gradient(760px 460px at 4% 4%, rgba(255,107,53,.12), transparent 62%);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-2);}
button{font-family:inherit;}
h1,h2,h3,h4{font-family:var(--font);color:var(--text-hi);margin:0;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- 顶部导航 ---------- */
.site-head{
  position:sticky;top:0;z-index:80;
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,backdrop-filter .25s ease;
}
.site-head.is-scrolled{
  background:rgba(11,13,16,.88);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.head-inner{
  max-width:var(--container);margin:0 auto;padding:0 24px;
  height:68px;display:flex;align-items:center;gap:18px;
}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text-hi);font-size:18px;font-weight:700;text-decoration:none;white-space:nowrap;}
.brand-mark{width:26px;height:26px;border-radius:9px;background:var(--brand-grad);box-shadow:0 6px 18px rgba(255,61,110,.35);flex:none;}
.brand-text em{font-style:normal;color:var(--brand);}
.chip-nav{display:flex;align-items:center;gap:6px;margin:0 auto;overflow-x:auto;scrollbar-width:none;}
.chip-nav::-webkit-scrollbar{display:none;}
.chip{
  display:inline-flex;align-items:center;justify-content:center;
  padding:8px 15px;border-radius:999px;font-size:14px;line-height:1.2;
  color:var(--text-mid);border:1px solid var(--line);white-space:nowrap;
  text-decoration:none;transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease;
}
.chip:hover{color:var(--text-hi);border-color:rgba(255,107,53,.5);transform:translateY(-1px);}
.chip.is-active{background:var(--brand-grad);border-color:transparent;color:#14161b;font-weight:600;}
.head-actions{display:flex;align-items:center;gap:14px;padding-left:18px;border-left:1px solid var(--line);}
.head-link{font-size:14px;color:var(--text-mid);text-decoration:none;}
.head-link:hover{color:var(--brand);}
.nav-toggle{
  display:none;width:38px;height:38px;border-radius:12px;border:1px solid var(--line);
  background:var(--ink-700);cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:16px;height:2px;border-radius:2px;background:var(--text-hi);transition:.25s ease;}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(6px) rotate(45deg);}
body.nav-open .nav-toggle span:nth-child(2){opacity:0;}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 26px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;text-decoration:none;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{background:var(--brand-grad);color:#14161b;box-shadow:0 10px 26px rgba(255,61,110,.26);}
.btn-primary:hover{color:#14161b;transform:translateY(-2px);box-shadow:0 16px 36px rgba(255,61,110,.4);}
.btn-primary:active{transform:translateY(0);box-shadow:0 8px 18px rgba(255,61,110,.24);}
.btn-ghost{background:transparent;color:var(--text-hi);border-color:rgba(255,255,255,.22);}
.btn-ghost:hover{color:var(--brand);border-color:var(--brand);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;
  padding:44px 0 46px;
  background-image:
    linear-gradient(90deg,rgba(11,13,16,.96) 0%,rgba(11,13,16,.82) 52%,rgba(11,13,16,.5) 100%),
    linear-gradient(180deg,rgba(11,13,16,.2) 0%,rgba(11,13,16,.95) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-low);margin-bottom:18px;}
.breadcrumb a{color:var(--text-low);text-decoration:none;}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{opacity:.55;}
.breadcrumb .current{color:var(--text-hi);}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px;}
.chip-static{background:rgba(43,199,175,.12);border-color:rgba(43,199,175,.35);color:var(--mint);font-size:12px;padding:6px 13px;font-weight:600;}
.chip-ghost{background:rgba(255,107,53,.1);border-color:rgba(255,107,53,.35);color:var(--brand);font-size:12px;padding:6px 13px;font-weight:600;}
.article-title{
  font-size:clamp(26px,3.6vw,40px);
  line-height:1.25;font-weight:700;letter-spacing:-.02em;
  max-width:900px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.meta-bar{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.meta-item{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;border:1px solid var(--line);
  font-size:13px;color:var(--text-low);background:rgba(255,255,255,.02);
  font-variant-numeric:tabular-nums;
}

/* ---------- 主体双栏 ---------- */
.article-wrap{padding:56px 0 64px;}
.article-grid{display:flex;flex-wrap:wrap;margin-left:-14px;margin-right:-14px;}
.article-grid > .cell{padding-left:14px;padding-right:14px;width:100%;}
@media (min-width:1025px){
  .article-grid > .cell.large-8{width:66.6667%;}
  .article-grid > .cell.large-4{width:33.3333%;}
}
.article-card{
  background:var(--ink-800);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:30px 32px 34px;
  box-shadow:var(--shadow);
}
.article-body{font-size:16px;line-height:1.9;color:#DBD6CF;}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 18px;}
.article-body h2{
  position:relative;margin:42px 0 16px;padding-left:16px;
  font-size:clamp(20px,2.2vw,26px);line-height:1.42;font-weight:700;color:var(--text-hi);
  scroll-margin-top:96px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:4px;background:var(--brand-grad);
}
.article-body h3{margin:28px 0 12px;font-size:18px;font-weight:700;color:var(--text-hi);line-height:1.5;}
.article-body h4{margin:22px 0 10px;font-size:16px;font-weight:700;color:var(--text-hi);}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:4px;list-style:none;}
.article-body ul li,.article-body ol li{position:relative;padding-left:20px;margin-bottom:10px;}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:2px;background:var(--brand);
}
.article-body ol{counter-reset:item;}
.article-body ol li{counter-increment:item;}
.article-body ol li::before{
  content:counter(item);position:absolute;left:0;top:.28em;
  width:18px;height:18px;border-radius:6px;background:rgba(255,107,53,.16);color:var(--brand);
  font-size:12px;font-weight:700;line-height:18px;text-align:center;font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:24px 0;padding:20px 22px;
  background:var(--ink-700);
  border-left:3px solid var(--brand);
  border-radius:0 14px 14px 0;
  color:var(--text-mid);
  font-size:15px;line-height:1.85;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-img);margin:22px 0;width:100%;height:auto;object-fit:cover;}
.article-body figure{margin:22px 0;}
.article-body figcaption{font-size:12px;color:var(--text-low);text-align:center;margin-top:10px;}
.article-body a{color:var(--brand);text-decoration:underline;text-decoration-style:dashed;text-underline-offset:3px;}
.article-body a:hover{color:var(--brand-2);}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14px;}
.article-body th,.article-body td{padding:11px 14px;border-bottom:1px solid var(--line);text-align:left;}
.article-body th{color:var(--text-hi);font-weight:600;background:rgba(255,255,255,.02);}
.article-body td{color:var(--text-mid);}
.article-body strong{color:#fff;font-weight:700;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}

/* ---------- 空状态 ---------- */
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;padding:56px 20px;text-align:center;
  border:1px dashed rgba(255,255,255,.14);border-radius:18px;background:rgba(255,255,255,.015);
}
.empty-icon{
  width:46px;height:46px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:rgba(255,194,75,.14);color:var(--warn);font-size:20px;font-weight:700;
}
.empty-state p{color:var(--text-mid);font-size:15px;}

/* ---------- 标签与分享 ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px;}
.tag-link{
  font-size:13px;padding:7px 14px;border-radius:999px;border:1px solid var(--line);
  color:var(--text-mid);background:rgba(255,255,255,.02);text-decoration:none;transition:.2s ease;
}
.tag-link:hover{color:var(--brand);border-color:rgba(255,107,53,.45);}
.share-row{display:flex;align-items:center;gap:10px;margin-top:20px;padding-top:20px;border-top:1px solid var(--line);}
.share-row span{font-size:13px;color:var(--text-low);margin-right:4px;}
.share-btn{
  width:38px;height:38px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:var(--ink-700);color:var(--text-mid);
  font-size:14px;cursor:pointer;transition:.2s ease;
}
.share-btn:hover{color:var(--brand);border-color:rgba(255,107,53,.5);transform:translateY(-2px);}

/* ---------- 侧栏 ---------- */
.article-side{display:flex;flex-direction:column;gap:18px;}
@media (min-width:1025px){
  .article-side{position:sticky;top:96px;align-self:flex-start;}
}
.side-panel{
  background:var(--ink-800);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px;box-shadow:0 12px 32px rgba(0,0,0,.3);
}
.side-title{
  display:flex;align-items:center;gap:8px;
  font-size:14px;font-weight:700;color:var(--text-hi);margin-bottom:14px;
}
.side-title::before{
  content:"";width:5px;height:5px;border-radius:50%;background:var(--brand);
  box-shadow:0 0 0 4px rgba(255,107,53,.16);
}
.toc-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px;}
.toc-list a{
  display:block;padding:9px 12px;border-left:2px solid transparent;
  color:var(--text-mid);font-size:14px;line-height:1.5;
  border-radius:0 10px 10px 0;text-decoration:none;transition:.2s ease;
}
.toc-list a:hover{color:var(--text-hi);background:var(--ink-600);}
.toc-list a.is-current{color:var(--brand);border-left-color:var(--brand);background:rgba(255,107,53,.08);}
.toc-empty{font-size:13px;color:var(--text-low);line-height:1.8;}
.mini-list{display:flex;flex-direction:column;gap:6px;}
.mini-card{display:flex;gap:12px;align-items:center;padding:9px;border-radius:14px;text-decoration:none;transition:.2s ease;}
.mini-card:hover{background:var(--ink-600);}
.mini-card img{width:62px;height:62px;border-radius:12px;object-fit:cover;flex:none;}
.mini-card .mini-t{font-size:14px;font-weight:600;color:var(--text-hi);line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.mini-card .mini-d{font-size:12px;color:var(--text-low);margin-top:4px;}
.mini-card:hover .mini-t{color:var(--brand);}
.side-tip{
  background:rgba(43,199,175,.08);
  border:1px solid rgba(43,199,175,.28);
  border-radius:var(--r-card);
  padding:18px 20px;
}
.side-tip h4{font-size:14px;color:var(--mint);margin-bottom:8px;}
.side-tip p{font-size:13px;line-height:1.8;color:var(--text-mid);}

/* ---------- CTA 面板 ---------- */
.cta-section{padding:0 0 72px;}
.cta-panel{
  position:relative;overflow:hidden;
  border-radius:var(--r-panel);
  padding:46px 44px;
  background:var(--brand-grad);
  color:#16181d;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
  box-shadow:0 26px 60px rgba(255,61,110,.24);
}
.cta-panel::before,.cta-panel::after{
  content:"";position:absolute;border-radius:50%;pointer-events:none;
  background:radial-gradient(circle,rgba(255,255,255,.36),transparent 70%);
}
.cta-panel::before{width:320px;height:320px;right:-90px;top:-140px;}
.cta-panel::after{width:240px;height:240px;left:-80px;bottom:-150px;opacity:.6;}
.cta-copy{position:relative;z-index:1;max-width:560px;}
.cta-copy h2{font-size:clamp(22px,2.6vw,32px);line-height:1.28;color:#14161b;font-weight:700;}
.cta-copy p{margin-top:10px;font-size:15px;color:rgba(20,22,27,.78);}
.cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:12px;}
.cta-panel .btn-primary{background:#14161b;color:#FDF7F1;box-shadow:0 12px 28px rgba(11,13,16,.32);}
.cta-panel .btn-primary:hover{color:#fff;box-shadow:0 18px 38px rgba(11,13,16,.42);}
.cta-panel .btn-ghost{color:#14161b;border-color:rgba(20,22,27,.42);}
.cta-panel .btn-ghost:hover{color:#14161b;border-color:#14161b;background:rgba(255,255,255,.16);}

/* ---------- 相关推荐三卡 ---------- */
.rec-section{padding:0 0 76px;}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:28px;}
.sec-head h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;}
.sec-head p{font-size:14px;color:var(--text-mid);margin-top:8px;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--text-mid);text-decoration:none;transition:.2s ease;}
.text-link .arrow{transition:transform .2s ease;}
.text-link:hover{color:var(--brand);}
.text-link:hover .arrow{transform:translateX(4px);}
.rec-grid{margin-left:-10px;margin-right:-10px;}
.rec-grid > .cell{padding:0 10px 20px;}
.post-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--ink-700);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;text-decoration:none;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.post-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:rgba(255,107,53,.35);}
.post-thumb{position:relative;overflow:hidden;aspect-ratio:16/10;}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.post-card:hover .post-thumb img{transform:scale(1.05);}
.post-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,13,16,0) 35%,rgba(11,13,16,.72) 100%);
}
.post-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-card h3{font-size:17px;font-weight:600;line-height:1.5;color:var(--text-hi);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card:hover h3{color:var(--brand);}
.post-desc{font-size:14px;line-height:1.75;color:var(--text-mid);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--text-low);font-variant-numeric:tabular-nums;}
.post-foot .arrow{color:var(--brand);}

/* ---------- FAQ ---------- */
.faq-section{background:var(--paper);color:#191B20;padding:78px 0;}
.faq-section .sec-head h2{color:#14161b;}
.faq-section .sec-head p{color:#5C626B;}
.faq-list{max-width:880px;margin:0 auto;}
.faq-item{border-bottom:1px solid rgba(11,13,16,.12);}
.faq-item:first-child{border-top:1px solid rgba(11,13,16,.12);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:none;border:0;padding:22px 2px;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:#191B20;line-height:1.6;
}
.faq-q:hover{color:#C2431F;}
.faq-icon{position:relative;width:18px;height:18px;flex:none;transition:transform .25s ease;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:#C2431F;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;transition:opacity .25s ease;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-item.is-open .faq-icon::after{opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a p{padding:0 2px 22px;font-size:14px;line-height:1.9;color:#4B5158;max-width:780px;}
.faq-item.is-open .faq-a{max-height:240px;}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--ink-800);border-top:1px solid var(--line);padding:60px 0 0;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px;}
.foot-brand .brand{margin-bottom:14px;}
.foot-brand p{font-size:14px;line-height:1.85;color:var(--text-mid);max-width:300px;}
.social-row{display:flex;gap:10px;margin-top:18px;}
.social-btn{
  width:36px;height:36px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--text-mid);
  text-decoration:none;font-size:14px;transition:.2s ease;
}
.social-btn:hover{color:var(--brand);border-color:rgba(255,107,53,.5);transform:translateY(-2px);}
.foot-col h4{font-size:14px;color:var(--text-hi);margin-bottom:14px;font-weight:700;}
.foot-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px;}
.foot-col li{font-size:13px;color:var(--text-mid);line-height:1.7;}
.foot-col a{color:var(--text-mid);text-decoration:none;font-size:13px;transition:color .2s ease;}
.foot-col a:hover{color:var(--brand);}
.foot-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  border-top:1px solid var(--line);padding:20px 0 26px;
  font-size:12px;color:var(--text-low);line-height:1.7;
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .head-inner{gap:14px;}
  .chip-nav{margin:0;flex:1;}
  .head-actions .head-link{display:none;}
  .article-grid > .cell{padding-bottom:20px;}
  .article-side{position:static;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-panel{padding:36px 30px;}
}
@media (max-width:880px){
  .chip-nav{display:none;}
  .nav-toggle{display:flex;}
  body.nav-open .chip-nav{
    display:flex;flex-direction:column;align-items:stretch;gap:8px;
    position:fixed;top:68px;right:0;width:min(320px,88vw);height:calc(100vh - 68px);
    background:var(--ink-800);border-left:1px solid var(--line);
    padding:20px;overflow-y:auto;margin:0;z-index:79;
  }
  body.nav-open .chip-nav .chip{width:100%;justify-content:flex-start;padding:12px 16px;}
  .head-actions{padding-left:12px;margin-left:auto;}
}
@media (max-width:640px){
  .container{padding:0 16px;}
  .head-inner{padding:0 16px;height:60px;gap:10px;}
  .brand{font-size:16px;}
  .brand-mark{width:23px;height:23px;border-radius:8px;}
  .head-actions .btn{padding:0 14px;height:34px;font-size:13px;}
  .article-hero{padding:30px 0 34px;}
  .article-title{font-size:24px;}
  .meta-bar{gap:8px;margin-top:16px;}
  .meta-item{font-size:12px;padding:4px 10px;}
  .article-wrap{padding:36px 0 44px;}
  .article-card{padding:22px 18px 26px;border-radius:16px;}
  .article-body{font-size:15.5px;}
  .article-body h2{margin-top:32px;padding-left:13px;}
  .share-row{gap:8px;flex-wrap:wrap;}
  .cta-section{padding-bottom:52px;}
  .cta-panel{padding:28px 22px;border-radius:22px;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .rec-section{padding-bottom:52px;}
  .faq-section{padding:54px 0;}
  .faq-q{font-size:15px;padding:18px 2px;}
  .foot-grid{grid-template-columns:1fr;gap:26px;padding-bottom:32px;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
  .article-grid{margin-left:-10px;margin-right:-10px;}
  .article-grid > .cell{padding-left:10px;padding-right:10px;}
}

/* roulang page: category2 */
:root{
  --ink-900:#0B0D10;
  --ink-800:#111419;
  --ink-700:#171B21;
  --ink-600:#1F242C;
  --line:rgba(255,255,255,.08);
  --text-hi:#F4EFE8;
  --text-mid:#A7AEB8;
  --text-low:#6E7681;
  --brand:#FF6B35;
  --brand-2:#FF3D6E;
  --brand-grad:linear-gradient(120deg,#FF6B35,#FF3D6E);
  --mint:#2BC7AF;
  --warn:#FFC24B;
  --paper:#F4EFE8;
  --r-card:20px;
  --r-big:28px;
  --r-img:16px;
  --shadow:0 18px 48px rgba(0,0,0,.45);
  --ease:200ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text-hi);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
.container{max-width:1280px;margin:0 auto;padding:0 24px;width:100%}
.grid-margin-x{margin-left:-12px;margin-right:-12px}
.grid-margin-x>.cell{padding-left:12px;padding-right:12px}
.section{padding:88px 0}
.section.tight{padding:64px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap}
.sec-title{font-size:clamp(22px,2.6vw,34px);font-weight:700;line-height:1.3;letter-spacing:-.01em}
.sec-desc{margin-top:8px;font-size:14.5px;color:var(--text-mid);max-width:640px}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);transition:gap var(--ease)}
.text-link:hover{gap:12px}

/* ---------- header ---------- */
.site-head{position:sticky;top:0;z-index:60;background:rgba(11,13,16,.72);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid transparent;transition:background var(--ease),border-color var(--ease)}
.site-head.is-scrolled{background:rgba(11,13,16,.95);border-bottom-color:var(--line)}
.head-inner{max-width:1280px;margin:0 auto;padding:0 24px;height:68px;display:flex;align-items:center;gap:18px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:26px;height:26px;border-radius:8px;background:var(--brand-grad);box-shadow:0 0 0 1px rgba(255,107,53,.35);flex:0 0 auto}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.brand-text em{font-style:normal;color:var(--brand)}
.chip-nav{display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;flex:1 1 auto;padding:4px 0}
.chip-nav::-webkit-scrollbar{display:none}
.chip{flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;padding:8px 16px;border-radius:999px;border:1px solid var(--line);color:var(--text-mid);font-size:14px;line-height:1.4;white-space:nowrap;transition:color var(--ease),border-color var(--ease),background var(--ease),transform var(--ease)}
.chip:hover{color:var(--text-hi);border-color:rgba(255,107,53,.5)}
.chip.is-active{background:var(--brand-grad);border-color:transparent;color:#1A0A04;font-weight:700;box-shadow:0 8px 20px rgba(255,61,110,.22)}
.head-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;padding-left:20px;border-left:1px solid var(--line)}
.head-link{font-size:13.5px;color:var(--text-mid);transition:color var(--ease)}
.head-link:hover{color:var(--brand)}
.nav-toggle{display:none;width:42px;height:38px;border-radius:12px;border:1px solid var(--line);background:transparent;flex-direction:column;gap:5px;align-items:center;justify-content:center;cursor:pointer;padding:0}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-hi);border-radius:2px;transition:transform var(--ease),opacity var(--ease)}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
body.nav-open .nav-toggle span:nth-child(2){opacity:0}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 26px;border-radius:999px;font-size:14px;font-weight:600;letter-spacing:.01em;cursor:pointer;border:1px solid transparent;transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease)}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--brand-grad);color:#1A0A04;box-shadow:0 10px 26px rgba(255,61,110,.24)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(255,61,110,.38)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text-hi)}
.btn-ghost:hover{border-color:var(--brand);color:#fff;transform:translateY(-2px)}
.btn-dark{background:var(--ink-900);color:var(--text-hi);box-shadow:0 10px 24px rgba(0,0,0,.3)}
.btn-dark:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(0,0,0,.4)}
.btn-sm{height:38px;padding:0 20px;font-size:13px}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-bg{position:absolute;inset:0;background-image:url(/assets/images/backpic/back-2.webp);background-size:cover;background-position:center;transform:scale(1.02)}
.hero-bg::after{content:"";position:absolute;inset:0;background:
  linear-gradient(90deg,rgba(11,13,16,.97) 0%,rgba(11,13,16,.88) 40%,rgba(11,13,16,.42) 100%),
  linear-gradient(0deg,var(--ink-900) 1%,rgba(11,13,16,0) 48%)}
.hero-inner{position:relative;max-width:1280px;margin:0 auto;padding:56px 24px 84px}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-low);margin-bottom:22px;flex-wrap:wrap}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{color:var(--text-low);opacity:.7}
.crumbs .cur{color:var(--text-hi)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 15px;border-radius:999px;border:1px solid rgba(255,107,53,.35);background:rgba(255,107,53,.1);font-size:13px;color:#FFB59A;letter-spacing:.02em}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px rgba(255,107,53,.16)}
.hero-title{font-size:clamp(30px,4.4vw,52px);font-weight:700;line-height:1.15;letter-spacing:-.02em;margin:20px 0 16px;max-width:720px}
.hero-sub{font-size:16.5px;color:var(--text-mid);max-width:620px;line-height:1.8}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.badge{display:inline-flex;align-items:baseline;gap:6px;padding:8px 16px;border-radius:999px;background:rgba(43,199,175,.1);border:1px solid rgba(43,199,175,.28)}
.badge.warn{background:rgba(255,194,75,.1);border-color:rgba(255,194,75,.3)}
.badge.brandish{background:rgba(255,107,53,.1);border-color:rgba(255,107,53,.3)}
.badge-num{font-size:18px;font-weight:700;color:var(--mint);font-variant-numeric:tabular-nums;line-height:1}
.badge.warn .badge-num{color:var(--warn)}
.badge.brandish .badge-num{color:var(--brand)}
.badge-unit{font-size:12px;color:var(--mint);font-weight:600}
.badge.warn .badge-unit{color:var(--warn)}
.badge.brandish .badge-unit{color:var(--brand)}
.badge-desc{font-size:12.5px;color:var(--text-mid)}

/* ---------- stat strip ---------- */
.stat-strip{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);border-radius:var(--r-card);background:var(--ink-800);overflow:hidden}
.stat-cell{padding:22px 24px;border-right:1px solid var(--line)}
.stat-cell:last-child{border-right:0}
.stat-num{font-size:28px;font-weight:700;color:var(--mint);font-variant-numeric:tabular-nums;line-height:1.2}
.stat-num .u{font-size:13px;font-weight:600;color:var(--text-mid);margin-left:5px}
.stat-label{font-size:13px;color:var(--text-low);margin-top:4px}

/* ---------- filter row ---------- */
.filter-row{display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;padding-bottom:4px;margin-bottom:8px}
.filter-row::-webkit-scrollbar{display:none}
.filter-row .chip{cursor:pointer;background:transparent}
.filter-row .chip.is-active{background:var(--brand-grad);color:#1A0A04;border-color:transparent;font-weight:700}

/* ---------- row list ---------- */
.row-list{border-top:1px solid var(--line);margin-top:12px}
.row-item{display:flex;align-items:center;gap:22px;padding:20px 16px;border-bottom:1px solid var(--line);border-radius:16px;transition:background var(--ease),transform var(--ease)}
.row-item:hover{background:var(--ink-700);transform:translateX(4px)}
.row-thumb{flex:0 0 200px;width:200px;height:120px;border-radius:14px;overflow:hidden;background:linear-gradient(135deg,#241A16,#1A1020);position:relative}
.row-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 250ms ease}
.row-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,13,16,0) 45%,rgba(11,13,16,.55) 100%)}
.row-item:hover .row-thumb img{transform:scale(1.05)}
.row-body{flex:1 1 auto;min-width:0}
.row-body h3{font-size:18px;font-weight:600;line-height:1.45;margin-bottom:6px}
.row-body p{font-size:14.5px;color:var(--text-mid);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.row-meta{display:flex;flex-wrap:wrap;gap:6px 16px;margin-top:10px;font-size:12.5px;color:var(--text-low);font-variant-numeric:tabular-nums}
.row-arrow{flex:0 0 auto;width:40px;height:40px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--text-mid);font-size:16px;transition:color var(--ease),border-color var(--ease),background var(--ease)}
.row-item:hover .row-arrow{color:#1A0A04;background:var(--brand-grad);border-color:transparent}

/* ---------- pager ---------- */
.pager{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:36px}
.pager a{display:inline-flex;align-items:center;justify-content:center;min-width:44px;height:44px;padding:0 16px;border-radius:999px;border:1px solid var(--line);font-size:14px;color:var(--text-mid);transition:color var(--ease),border-color var(--ease)}
.pager a:hover{color:var(--text-hi);border-color:rgba(255,107,53,.5)}
.pager a.is-current{background:var(--brand-grad);border-color:transparent;color:#1A0A04;font-weight:700}

/* ---------- feature ---------- */
.feature-media{border-radius:var(--r-card);overflow:hidden;position:relative;box-shadow:var(--shadow)}
.feature-media img{width:100%;height:340px;object-fit:cover}
.feature-media::after{content:"";position:absolute;inset:0;background:linear-gradient(160deg,rgba(255,107,53,.16),rgba(11,13,16,.62))}
.feature-list{display:grid;gap:16px}
.feature-item{display:flex;gap:16px;padding:20px 22px;border-radius:18px;border:1px solid var(--line);background:var(--ink-800);transition:border-color var(--ease),transform var(--ease)}
.feature-item:hover{border-color:rgba(255,107,53,.4);transform:translateY(-3px)}
.feature-dot{flex:0 0 auto;width:36px;height:36px;border-radius:12px;background:rgba(255,107,53,.12);border:1px solid rgba(255,107,53,.32);display:flex;align-items:center;justify-content:center;color:var(--brand);font-weight:700;font-size:14px;font-variant-numeric:tabular-nums}
.feature-item h3{font-size:17px;font-weight:600;margin-bottom:4px}
.feature-item p{font-size:14.5px;color:var(--text-mid);line-height:1.75}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.step{padding:24px 22px;border-radius:var(--r-card);border:1px solid var(--line);background:var(--ink-800);position:relative;overflow:hidden;transition:transform var(--ease),border-color var(--ease)}
.step:hover{transform:translateY(-4px);border-color:rgba(255,107,53,.4)}
.step::before{content:"";position:absolute;top:0;left:22px;width:44px;height:3px;background:var(--brand-grad);border-radius:0 0 4px 4px}
.step-no{font-size:13px;font-weight:700;color:var(--brand);letter-spacing:.1em;font-variant-numeric:tabular-nums;margin-bottom:12px}
.step h3{font-size:17px;font-weight:600;margin-bottom:8px}
.step p{font-size:14px;color:var(--text-mid);line-height:1.75}

/* ---------- faq ---------- */
.faq-wrap{max-width:900px}
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 4px;background:none;border:0;color:var(--text-hi);font-size:16px;font-weight:600;text-align:left;cursor:pointer;line-height:1.6}
.faq-q:hover{color:var(--brand)}
.faq-icon{flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:15px;color:var(--text-mid);transition:transform var(--ease),color var(--ease),border-color var(--ease)}
.faq-item.is-open .faq-icon{transform:rotate(45deg);color:var(--brand);border-color:rgba(255,107,53,.5)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 300ms ease}
.faq-a p{padding:0 4px 22px;font-size:14.5px;color:var(--text-mid);line-height:1.9;max-width:760px}

/* ---------- cta band ---------- */
.cta-band{position:relative;overflow:hidden;border-radius:var(--r-big);padding:52px 48px;background:var(--brand-grad);color:#1A0A04}
.cta-band::before,.cta-band::after{content:"";position:absolute;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.4),rgba(255,255,255,0) 70%);pointer-events:none}
.cta-band::before{width:320px;height:320px;right:-80px;top:-140px}
.cta-band::after{width:220px;height:220px;right:180px;bottom:-130px;opacity:.7}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.3;letter-spacing:-.01em;max-width:620px}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(26,10,4,.78)}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-band .btn-ghost{border-color:rgba(26,10,4,.35);color:#1A0A04}
.cta-band .btn-ghost:hover{border-color:#1A0A04;background:rgba(26,10,4,.1);color:#1A0A04}

/* ---------- footer ---------- */
.site-foot{background:var(--ink-800);border-top:1px solid var(--line);padding:64px 0 0;margin-top:88px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.foot-brand p{margin-top:14px;font-size:14px;color:var(--text-mid);line-height:1.85;max-width:320px}
.social-row{display:flex;gap:10px;margin-top:18px}
.social-btn{width:38px;height:38px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--text-mid);font-size:15px;transition:color var(--ease),border-color var(--ease),transform var(--ease)}
.social-btn:hover{color:var(--brand);border-color:rgba(255,107,53,.5);transform:translateY(-2px)}
.foot-col h4{font-size:14px;font-weight:700;color:var(--text-hi);margin-bottom:16px;letter-spacing:.02em}
.foot-col ul{display:grid;gap:10px}
.foot-col li,.foot-col a{font-size:14px;color:var(--text-mid);line-height:1.7}
.foot-col a:hover{color:var(--brand)}
.foot-bottom{border-top:1px solid var(--line);padding:20px 0 28px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--text-low)}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .section{padding:64px 0}
  .steps{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:40px 32px}
}
@media (max-width:900px){
  .head-inner{height:60px;padding:0 16px;gap:12px}
  .chip-nav{position:fixed;top:0;right:0;bottom:0;width:min(80vw,330px);flex-direction:column;align-items:stretch;gap:10px;padding:86px 20px 110px;background:var(--ink-800);border-left:1px solid var(--line);transform:translateX(105%);transition:transform 280ms ease;z-index:70;overflow-y:auto}
  body.nav-open .chip-nav{transform:none}
  .chip-nav .chip{width:100%;padding:12px 16px}
  .head-actions{display:flex;position:fixed;bottom:0;right:0;width:min(80vw,330px);padding:16px 20px 24px;border-left:1px solid var(--line);border-top:1px solid var(--line);background:var(--ink-800);z-index:75;transform:translateX(105%);transition:transform 280ms ease;padding-left:20px}
  body.nav-open .head-actions{transform:none}
  .head-actions .head-link{display:none}
  .head-actions .btn{flex:1 1 auto;height:44px}
  .nav-toggle{display:flex;margin-left:auto;position:relative;z-index:80}
  .hero-inner{padding:40px 16px 64px}
}
@media (max-width:640px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  .hero-title{font-size:clamp(26px,7vw,34px)}
  .hero-sub{font-size:15px}
  .hero-actions .btn{width:100%}
  .stat-strip{grid-template-columns:1fr}
  .stat-cell{border-right:0;border-bottom:1px solid var(--line)}
  .stat-cell:last-child{border-bottom:0}
  .row-item{flex-direction:column;align-items:stretch;gap:12px;padding:16px 12px;transform:none}
  .row-item:hover{transform:none}
  .row-thumb{width:96px;height:72px;flex:0 0 auto}
  .row-arrow{display:none}
  .row-body h3{font-size:16.5px}
  .steps{grid-template-columns:1fr}
  .feature-media img{height:230px}
  .cta-band{padding:32px 22px;border-radius:22px}
  .cta-actions .btn{width:100%}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column;gap:8px}
  .sec-head{align-items:flex-start}
  .pager a{min-width:40px;height:40px;font-size:13px;padding:0 12px}
}

/* roulang page: category3 */
:root{
  --ink-900:#0B0D10;
  --ink-800:#111419;
  --ink-700:#171B21;
  --ink-600:#1F242C;
  --line:rgba(255,255,255,.08);
  --text-hi:#F4EFE8;
  --text-mid:#A7AEB8;
  --text-low:#6E7681;
  --brand:#FF6B35;
  --brand-2:#FF3D6E;
  --brand-grad:linear-gradient(120deg,#FF6B35,#FF3D6E);
  --mint:#2BC7AF;
  --warn:#FFC24B;
  --paper:#F4EFE8;
  --r-card:20px;
  --r-big:28px;
  --r-pill:999px;
  --shadow:0 18px 48px rgba(0,0,0,.45);
  --container:1280px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text-hi);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;width:100%}

/* ---------- header ---------- */
.site-head{
  position:sticky;top:0;z-index:80;
  background:rgba(11,13,16,.55);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-head.is-stuck{background:rgba(11,13,16,.95);border-bottom-color:var(--line);box-shadow:0 10px 30px rgba(0,0,0,.35)}
.head-inner{max-width:var(--container);margin:0 auto;padding:0 24px;height:68px;display:flex;align-items:center;gap:18px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.brand-mark{width:26px;height:26px;border-radius:9px;background:var(--brand-grad);box-shadow:0 0 0 1px rgba(255,107,53,.35);flex:none}
.brand-text{font-size:17px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;color:var(--text-hi)}
.brand-text em{font-style:normal;background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.chip-nav{display:flex;align-items:center;gap:8px;flex:1 1 auto;min-width:0;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;padding:4px 0}
.chip-nav::-webkit-scrollbar{display:none}
.chip-nav .chip{
  flex:none;display:inline-flex;align-items:center;justify-content:center;
  height:34px;padding:0 15px;border-radius:var(--r-pill);
  font-size:13.5px;font-weight:500;line-height:1;
  color:var(--text-mid);border:1px solid var(--line);background:transparent;
  white-space:nowrap;transition:all .2s ease;
}
.chip-nav .chip:hover{color:var(--text-hi);border-color:rgba(255,107,53,.5)}
.chip-nav .chip:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.chip-nav .chip.is-active{background:var(--brand-grad);color:#180F0B;border-color:transparent;font-weight:700;box-shadow:0 8px 22px rgba(255,61,110,.28)}
.head-actions{display:flex;align-items:center;gap:16px;padding-left:20px;border-left:1px solid var(--line);flex:none}
.head-link{font-size:13.5px;color:var(--text-mid)}
.head-link:hover{color:var(--brand)}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
  background:transparent;flex-direction:column;justify-content:center;align-items:center;gap:4px;cursor:pointer;padding:0;
}
.nav-toggle span{width:16px;height:2px;background:var(--text-hi);border-radius:2px;transition:.2s ease}
.nav-toggle:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 26px;border-radius:var(--r-pill);
  font-size:14.5px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease,filter .2s ease;
}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:3px}
.btn-primary{background:var(--brand-grad);color:#180F0B}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(255,61,110,.35);filter:brightness(1.06);color:#180F0B}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.22);color:var(--text-hi)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{height:38px;padding:0 20px;font-size:13.5px}
.btn-dark{background:#14100E;color:var(--paper)}
.btn-dark:hover{color:var(--paper);transform:translateY(-2px);box-shadow:0 14px 32px rgba(20,16,14,.35)}
.btn-line{border-color:rgba(24,15,11,.32);color:#180F0B;background:transparent}
.btn-line:hover{background:rgba(24,15,11,.08);transform:translateY(-2px);color:#180F0B}

/* ---------- hero ---------- */
.page-hero{position:relative;overflow:hidden;padding:52px 0 60px;border-bottom:1px solid var(--line)}
.page-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.4}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(11,13,16,.97) 0%,rgba(11,13,16,.84) 46%,rgba(11,13,16,.5) 100%),
             linear-gradient(180deg,rgba(11,13,16,.25) 0%,rgba(11,13,16,.9) 100%);
}
.page-hero-inner{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-low);margin-bottom:16px}
.breadcrumb a:hover{color:var(--text-mid)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .cur{color:var(--text-hi)}
.page-hero h1{
  font-size:clamp(30px,4.4vw,50px);line-height:1.15;letter-spacing:-.02em;font-weight:700;
  max-width:760px;margin-bottom:16px;
}
.hero-lead{font-size:16.5px;line-height:1.8;color:var(--text-mid);max-width:640px;margin-bottom:30px}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px}
.badge{
  display:inline-flex;align-items:baseline;gap:7px;
  padding:11px 18px;border-radius:14px;
  background:rgba(43,199,175,.08);border:1px solid rgba(43,199,175,.22);
}
.badge .num{font-size:21px;font-weight:800;line-height:1;color:var(--mint);font-variant-numeric:tabular-nums}
.badge .unit{font-size:12.5px;color:var(--mint);opacity:.9}
.badge .desc{font-size:12.5px;color:var(--text-mid)}

/* ---------- filter row ---------- */
.filter-bar{padding:24px 0 0}
.filter-row{display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;padding-bottom:4px}
.filter-row::-webkit-scrollbar{display:none}
.filter-chip{
  flex:none;display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:transparent;font-size:13px;color:var(--text-mid);
  cursor:pointer;transition:all .2s ease;white-space:nowrap;
}
.filter-chip:hover{color:var(--text-hi);border-color:rgba(255,107,53,.45)}
.filter-chip:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.filter-chip.is-on{background:var(--brand-grad);color:#180F0B;font-weight:700;border-color:transparent}

/* ---------- sections ---------- */
.section{padding:64px 0}
.section-head{margin-bottom:32px;max-width:760px}
.section-head h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;letter-spacing:-.01em;line-height:1.35;margin-bottom:10px}
.section-head p{color:var(--text-mid);font-size:15px;line-height:1.85}

/* ---------- split layout ---------- */
.split{display:grid;grid-template-columns:282px minmax(0,1fr);gap:32px;align-items:start}
.side-panel{
  position:sticky;top:92px;
  background:var(--ink-800);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:0 12px 32px rgba(0,0,0,.28);
}
.side-title{font-size:12px;letter-spacing:.14em;color:var(--text-low);margin-bottom:14px;font-weight:600}
.side-list{display:flex;flex-direction:column;gap:6px;margin-bottom:20px}
.side-item{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:9px 12px;border-radius:12px;border:1px solid transparent;
  font-size:14px;color:var(--text-mid);transition:all .2s ease;
}
.side-item:hover{background:var(--ink-700);color:var(--text-hi)}
.side-item.is-on{background:rgba(255,107,53,.12);border-color:rgba(255,107,53,.35);color:var(--brand);font-weight:600}
.side-item .cnt{font-size:12px;color:var(--text-low);font-variant-numeric:tabular-nums}
.side-item.is-on .cnt{color:var(--brand)}
.search-box{display:block;margin-bottom:18px}
.search-box span{display:block;font-size:12.5px;color:var(--text-low);margin-bottom:8px}
.search-box input{
  width:100%;height:42px;border-radius:12px;background:var(--ink-900);
  border:1px solid var(--line);color:var(--text-hi);padding:0 14px;font-size:14px;outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box input::placeholder{color:var(--text-low)}
.search-box input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(255,107,53,.16)}
.side-note{font-size:13px;line-height:1.85;color:var(--text-low);border-top:1px solid var(--line);padding-top:16px}

/* ---------- security cards ---------- */
.card-grid{margin-bottom:-24px}
.card-grid > .cell{margin-bottom:24px}
.sec-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--ink-700);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.sec-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:rgba(255,107,53,.35)}
.sec-card:focus-visible{outline:2px solid var(--brand);outline-offset:3px}
.sec-card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,#20161A,#101215)}
.sec-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.sec-card:hover .sec-card-media img{transform:scale(1.05)}
.sec-card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,13,16,0) 45%,rgba(23,27,33,.96) 100%)}
.sec-card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.tag{
  display:inline-flex;align-self:flex-start;padding:4px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;line-height:1.6;color:var(--brand);
  background:rgba(255,107,53,.1);border:1px solid rgba(255,107,53,.28);
}
.sec-card h3{font-size:18px;font-weight:600;line-height:1.45;color:var(--text-hi)}
.sec-card p{
  font-size:14px;line-height:1.8;color:var(--text-mid);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.meta-row{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--text-low);font-variant-numeric:tabular-nums;
}
.meta-row .arrow{color:var(--brand);transition:transform .2s ease}
.sec-card:hover .meta-row .arrow{transform:translateX(4px)}

/* ---------- steps ---------- */
.steps-band{background:var(--ink-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.steps-row{margin-bottom:-24px}
.steps-row > .cell{margin-bottom:24px}
.step{
  height:100%;padding:26px 22px;border-radius:var(--r-card);
  background:var(--ink-700);border:1px solid var(--line);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.step:hover{transform:translateY(-4px);border-color:rgba(255,107,53,.35);box-shadow:var(--shadow)}
.step-num{font-size:12.5px;font-weight:800;letter-spacing:.14em;color:var(--brand);font-variant-numeric:tabular-nums}
.step h3{font-size:16.5px;font-weight:600;margin:12px 0 8px;line-height:1.5}
.step p{font-size:13.5px;line-height:1.85;color:var(--text-mid)}

/* ---------- paper faq ---------- */
.paper{background:var(--paper);color:#12151A}
.paper .section-head h2{color:#0F1216}
.paper .section-head p{color:#5A616B}
.faq{max-width:840px}
.faq-item{border-bottom:1px solid rgba(15,18,22,.12)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:none;border:0;padding:20px 0;font-size:16px;font-weight:600;line-height:1.6;
  color:#0F1216;text-align:left;cursor:pointer;transition:color .2s ease;
}
.faq-q:hover{color:#C4421F}
.faq-q:focus-visible{outline:2px solid var(--brand);outline-offset:4px}
.faq-icon{
  flex:none;width:26px;height:26px;display:grid;place-items:center;border-radius:var(--r-pill);
  border:1px solid rgba(15,18,22,.2);font-size:15px;line-height:1;
  transition:transform .28s ease,background .28s ease,color .28s ease,border-color .28s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--brand-grad);color:#180F0B;border-color:transparent}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-a p{font-size:14.5px;line-height:1.9;color:#4A515B;padding-bottom:20px;max-width:720px}

/* ---------- pager ---------- */
.pager{display:flex;gap:8px;justify-content:center;margin-top:44px;flex-wrap:wrap}
.pager a,.pager span{
  min-width:40px;height:40px;display:grid;place-items:center;padding:0 12px;
  border-radius:12px;border:1px solid var(--line);
  font-size:14px;color:var(--text-mid);font-variant-numeric:tabular-nums;transition:all .2s ease;
}
.pager a:hover{border-color:rgba(255,107,53,.5);color:var(--text-hi)}
.pager .cur{background:var(--brand-grad);color:#180F0B;border-color:transparent;font-weight:700}

/* ---------- cta ---------- */
.cta-wrap{padding:64px 0 84px}
.cta-panel{
  position:relative;overflow:hidden;border-radius:var(--r-big);
  padding:56px 48px;background:var(--brand-grad);color:#180F0B;
}
.cta-panel::before,.cta-panel::after{
  content:"";position:absolute;border-radius:50%;background:rgba(255,255,255,.2);pointer-events:none;
}
.cta-panel::before{width:280px;height:280px;right:-70px;top:-110px}
.cta-panel::after{width:190px;height:190px;right:140px;bottom:-120px}
.cta-inner{position:relative;z-index:2;max-width:720px}
.cta-panel h2{font-size:clamp(22px,3vw,34px);line-height:1.3;font-weight:700;margin-bottom:12px;color:#180F0B}
.cta-panel p{font-size:15px;line-height:1.8;color:rgba(24,15,11,.78);margin-bottom:26px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- footer ---------- */
.site-foot{background:var(--ink-800);border-top:1px solid var(--line);padding-top:64px}
.foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:40px}
.foot-brand p{font-size:13.5px;line-height:1.9;color:var(--text-mid);margin:16px 0 18px;max-width:320px}
.social-row{display:flex;gap:10px}
.social-btn{
  width:34px;height:34px;border-radius:var(--r-pill);border:1px solid var(--line);
  display:grid;place-items:center;font-size:14px;color:var(--text-mid);transition:all .2s ease;
}
.social-btn:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.foot-col h4{font-size:14px;font-weight:600;color:var(--text-hi);margin-bottom:16px}
.foot-col ul{display:flex;flex-direction:column;gap:10px}
.foot-col li{font-size:13.5px;color:var(--text-mid);line-height:1.7}
.foot-col a:hover{color:var(--brand)}
.foot-bottom{
  margin-top:48px;padding:22px 0;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:var(--text-low);
}

/* ---------- responsive ---------- */
@media (max-width:1100px){
  .split{grid-template-columns:240px minmax(0,1fr);gap:24px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:960px){
  .site-head{background:rgba(11,13,16,.94);border-bottom-color:var(--line)}
  .head-inner{height:60px;gap:12px;padding:0 20px}
  .head-actions{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .chip-nav{
    position:absolute;top:60px;left:0;right:0;display:none;flex-direction:column;gap:6px;
    padding:14px 20px 20px;background:var(--ink-800);
    border-bottom:1px solid var(--line);box-shadow:var(--shadow);overflow:visible;
  }
  .site-head.is-open .chip-nav{display:flex}
  .chip-nav .chip{width:100%;height:44px;font-size:14px}
  .split{grid-template-columns:minmax(0,1fr)}
  .side-panel{position:static;padding:18px}
  .side-list{flex-direction:row;flex-wrap:wrap;gap:8px;margin-bottom:16px}
  .side-item{padding:7px 12px;font-size:13px}
  .side-item .cnt{display:none}
  .section{padding:48px 0}
  .page-hero{padding:40px 0 46px}
  .cta-panel{padding:40px 28px}
  .cta-wrap{padding:48px 0 64px}
}
@media (max-width:720px){
  .container{padding:0 16px}
  .head-inner{padding:0 16px}
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .hero-badges{gap:10px}
  .badge{padding:9px 14px}
  .badge .num{font-size:18px}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column;gap:8px}
  .cta-actions .btn{width:100%}
  .section{padding:44px 0}
  .faq-q{font-size:15px;padding:17px 0}
}
@media (max-width:520px){
  .brand-text{font-size:15.5px}
  .brand-mark{width:23px;height:23px;border-radius:8px}
  .page-hero h1{font-size:28px}
  .hero-lead{font-size:15px}
}

/* roulang page: category4 */
:root{
  --ink-900:#0B0D10;
  --ink-800:#111419;
  --ink-700:#171B21;
  --ink-600:#1F242C;
  --line:rgba(255,255,255,.08);
  --text-hi:#F4EFE8;
  --text-mid:#A7AEB8;
  --text-low:#6E7681;
  --brand:#FF6B35;
  --brand-2:#FF3D6E;
  --brand-grad:linear-gradient(120deg,#FF6B35,#FF3D6E);
  --mint:#2BC7AF;
  --warn:#FFC24B;
  --paper:#F4EFE8;
  --radius:20px;
  --radius-lg:28px;
  --shadow:0 18px 48px rgba(0,0,0,.45);
  --shadow-hover:0 24px 60px rgba(0,0,0,.55);
  --container:1280px;
  --space:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text-hi);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
::selection{background:rgba(255,107,53,.35);color:#fff;}
a:focus-visible,button:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}

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

/* ---------- 顶部导航 ---------- */
.site-head{
  position:sticky;
  top:0;
  z-index:120;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,backdrop-filter .25s ease;
}
.site-head.is-scrolled{
  background:rgba(11,13,16,.92);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.head-inner{
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
  height:68px;
  display:flex;
  align-items:center;
  gap:20px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:22px;height:22px;
  border-radius:7px;
  background:var(--brand-grad);
  box-shadow:0 6px 18px rgba(255,61,110,.35);
}
.brand-text{
  font-size:17px;
  font-weight:700;
  letter-spacing:.01em;
  color:var(--text-hi);
  white-space:nowrap;
}
.brand-text em{
  font-style:normal;
  background:var(--brand-grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.chip-nav{
  display:flex;
  align-items:center;
  gap:8px;
  overflow-x:auto;
  scrollbar-width:none;
  flex:1 1 auto;
  min-width:0;
  padding:4px 2px;
}
.chip-nav::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  height:34px;
  padding:0 15px;
  border-radius:999px;
  border:1px solid var(--line);
  color:var(--text-mid);
  font-size:13.5px;
  font-weight:600;
  white-space:nowrap;
  transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease;
}
.chip:hover{color:var(--text-hi);border-color:rgba(255,107,53,.5);transform:translateY(-1px);}
.chip.is-active{
  background:var(--brand-grad);
  border-color:transparent;
  color:#17090a;
}
.head-actions{
  display:flex;
  align-items:center;
  gap:16px;
  flex-shrink:0;
  padding-left:20px;
  border-left:1px solid var(--line);
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:44px;
  padding:0 28px;
  border-radius:999px;
  font-size:14.5px;
  font-weight:700;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--brand-grad);
  color:#17090a;
  box-shadow:0 10px 28px rgba(255,61,110,.28);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(255,61,110,.45);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;
  border-color:var(--line);
  color:var(--text-hi);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.btn-sm{height:38px;padding:0 20px;font-size:13.5px;}
.head-link{
  font-size:13.5px;
  color:var(--text-mid);
  font-weight:600;
  transition:color .2s ease;
}
.head-link:hover{color:var(--brand);}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(17,20,25,.8);
  cursor:pointer;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:4px;
  padding:0;
}
.nav-toggle span{
  display:block;
  width:16px;height:2px;
  background:var(--text-hi);
  border-radius:2px;
  transition:transform .25s ease,opacity .25s ease;
}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(6px) rotate(45deg);}
body.nav-open .nav-toggle span:nth-child(2){opacity:0;}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ---------- 首屏 ---------- */
.page-hero{
  position:relative;
  padding:56px 0 64px;
  background-size:cover;
  background-position:center;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(100deg,rgba(11,13,16,.97) 0%,rgba(11,13,16,.88) 48%,rgba(11,13,16,.58) 100%);
}
.page-hero::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:140px;
  background:linear-gradient(180deg,rgba(11,13,16,0),var(--ink-900));
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-low);
  margin-bottom:14px;
}
.breadcrumb a{color:var(--text-low);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb span.sep{opacity:.6;}
.breadcrumb .current{color:var(--text-hi);}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:30px;
  padding:0 14px;
  border-radius:999px;
  border:1px solid rgba(255,107,53,.35);
  background:rgba(255,107,53,.1);
  color:var(--brand);
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.04em;
  margin-bottom:18px;
}
.hero-tag i{width:6px;height:6px;border-radius:50%;background:var(--brand);}
h1{
  font-size:clamp(30px,4.4vw,52px);
  line-height:1.15;
  font-weight:700;
  letter-spacing:-.02em;
  max-width:820px;
}
.hero-sub{
  margin-top:16px;
  font-size:16px;
  line-height:1.85;
  color:var(--text-mid);
  max-width:640px;
}
.filter-row{
  display:flex;
  gap:10px;
  overflow-x:auto;
  scrollbar-width:none;
  margin-top:28px;
  padding-bottom:4px;
}
.filter-row::-webkit-scrollbar{display:none;}
.filter-chip{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  height:34px;
  padding:0 16px;
  border-radius:999px;
  border:1px solid var(--line);
  font-size:13px;
  font-weight:600;
  color:var(--text-mid);
  background:rgba(23,27,33,.6);
  transition:all .2s ease;
}
.filter-chip:hover{color:var(--text-hi);border-color:rgba(255,107,53,.55);}
.filter-chip.is-on{
  background:var(--brand-grad);
  border-color:transparent;
  color:#17090a;
}
.stat-strip{
  display:flex;
  flex-wrap:wrap;
  align-items:stretch;
  gap:0;
  margin-top:32px;
  padding:18px 6px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:rgba(23,27,33,.72);
  backdrop-filter:blur(8px);
  max-width:760px;
}
.stat-item{
  flex:1 1 240px;
  display:flex;
  align-items:baseline;
  gap:8px;
  padding:4px 22px;
}
.stat-item + .stat-item{border-left:1px solid var(--line);}
.stat-num{
  font-size:26px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  color:var(--mint);
  line-height:1.2;
}
.stat-num .unit{font-size:13px;font-weight:600;color:var(--mint);margin-left:2px;}
.stat-desc{font-size:13px;color:var(--text-mid);}

/* ---------- 通用板块 ---------- */
.section{padding:var(--space) 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:36px;
  flex-wrap:wrap;
}
.section-head h2{
  font-size:clamp(22px,2.6vw,34px);
  font-weight:700;
  letter-spacing:-.01em;
  line-height:1.3;
}
.section-head .sub{
  margin-top:10px;
  color:var(--text-mid);
  font-size:14.5px;
  max-width:640px;
}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:700;
  color:var(--brand);
  transition:gap .2s ease,color .2s ease;
}
.link-more:hover{gap:14px;color:var(--brand-2);}

/* ---------- 时间轴 ---------- */
.timeline-wrap{
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:linear-gradient(180deg,rgba(23,27,33,.9),rgba(17,20,25,.9));
  padding:16px 32px 8px;
  box-shadow:var(--shadow);
}
.timeline{
  position:relative;
  margin:0;
  padding:0;
}
.timeline::before{
  content:"";
  position:absolute;
  left:31px;
  top:34px;
  bottom:34px;
  width:1px;
  background:var(--line);
}
.tl-item{
  display:grid;
  grid-template-columns:64px 1fr;
  gap:32px;
  padding:26px 0;
  border-bottom:1px solid var(--line);
  transition:background .2s ease;
}
.tl-item:last-child{border-bottom:0;}
.tl-num{
  position:relative;
  z-index:2;
  width:64px;
  height:58px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:var(--ink-900);
  border:1px solid var(--line);
  border-radius:14px;
  font-size:24px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  color:var(--text-low);
  transition:color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.tl-item:hover .tl-num{
  color:var(--brand);
  border-color:rgba(255,107,53,.55);
  box-shadow:0 0 0 1px rgba(255,107,53,.25),0 10px 26px rgba(0,0,0,.4);
  transform:translateY(-2px);
}
.tl-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-bottom:8px;
}
.tag{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  color:var(--mint);
  background:rgba(43,199,175,.12);
  border:1px solid rgba(43,199,175,.28);
}
.tag.tag-warn{color:var(--warn);background:rgba(255,194,75,.12);border-color:rgba(255,194,75,.28);}
.tag.tag-brand{color:var(--brand);background:rgba(255,107,53,.12);border-color:rgba(255,107,53,.28);}
.tl-time{
  font-size:12.5px;
  color:var(--text-low);
  font-variant-numeric:tabular-nums;
}
.tl-body h3{
  font-size:19px;
  font-weight:600;
  line-height:1.5;
  margin-bottom:8px;
}
.tl-body p{
  font-size:15px;
  line-height:1.85;
  color:var(--text-mid);
  max-width:760px;
}
.tl-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:12px;
  font-size:13.5px;
  font-weight:700;
  color:var(--text-mid);
  transition:color .2s ease,gap .2s ease;
}
.tl-link:hover{color:var(--brand);gap:14px;}

/* ---------- 分页 ---------- */
.pager{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  margin-top:44px;
  flex-wrap:wrap;
}
.pager-btn{
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 18px;
  border-radius:999px;
  border:1px solid var(--line);
  font-size:13.5px;
  font-weight:600;
  color:var(--text-mid);
  transition:all .2s ease;
}
.pager-btn:hover{color:var(--brand);border-color:var(--brand);}
.pager-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;
  height:38px;
  border-radius:999px;
  border:1px solid var(--line);
  font-size:13.5px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  color:var(--text-mid);
  transition:all .2s ease;
}
.pager-num:hover{color:var(--brand);border-color:var(--brand);}
.pager-num.is-current{
  background:var(--brand-grad);
  border-color:transparent;
  color:#17090a;
  box-shadow:0 10px 24px rgba(255,61,110,.3);
}

/* ---------- 功能分区（左图右列表） ---------- */
.split-card{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:0;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  background:var(--ink-800);
  box-shadow:var(--shadow);
}
.split-media{
  position:relative;
  min-height:420px;
  overflow:hidden;
}
.split-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.split-card:hover .split-media img{transform:scale(1.04);}
.split-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(11,13,16,.15),rgba(11,13,16,.72));
}
.split-media .media-label{
  position:absolute;
  left:24px;
  bottom:24px;
  z-index:2;
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:30px;
  padding:0 14px;
  border-radius:999px;
  background:rgba(11,13,16,.7);
  border:1px solid var(--line);
  font-size:12.5px;
  font-weight:600;
  color:var(--text-hi);
}
.split-body{padding:36px 34px;}
.split-body h2{
  font-size:clamp(20px,2.2vw,28px);
  font-weight:700;
  line-height:1.35;
  margin-bottom:12px;
}
.split-body .lead{
  font-size:14.5px;
  color:var(--text-mid);
  margin-bottom:24px;
}
.feature-list li{
  display:flex;
  gap:16px;
  padding:16px 0;
  border-top:1px solid var(--line);
}
.feature-list li:first-child{border-top:0;padding-top:0;}
.feature-ico{
  flex:0 0 42px;
  width:42px;height:42px;
  border-radius:12px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:rgba(255,107,53,.12);
  border:1px solid rgba(255,107,53,.28);
  color:var(--brand);
  font-size:16px;
}
.feature-list h3{
  font-size:16px;
  font-weight:600;
  margin-bottom:4px;
}
.feature-list p{
  font-size:13.5px;
  line-height:1.8;
  color:var(--text-mid);
}

/* ---------- FAQ（浅色反向区块） ---------- */
.faq-section{
  background:var(--paper);
  color:#0B0D10;
  padding:var(--space) 0;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.faq-section .section-head h2{color:#0B0D10;}
.faq-section .section-head .sub{color:#4A4F58;}
.faq{
  max-width:860px;
  margin:0 auto;
  border-top:1px solid rgba(11,13,16,.14);
}
.faq-item{border-bottom:1px solid rgba(11,13,16,.14);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:22px 4px;
  background:none;
  border:0;
  cursor:pointer;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:#0B0D10;
  line-height:1.6;
}
.faq-q:hover{color:#C43A12;}
.faq-ico{
  flex:0 0 auto;
  width:26px;height:26px;
  border-radius:50%;
  border:1px solid rgba(11,13,16,.22);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:15px;
  font-weight:700;
  color:#0B0D10;
  transition:transform .25s ease,background .25s ease,color .25s ease,border-color .25s ease;
}
.faq-item.is-open .faq-ico{
  transform:rotate(45deg);
  background:var(--brand-grad);
  border-color:transparent;
  color:#fff;
}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
}
.faq-a p{
  font-size:14px;
  line-height:1.9;
  color:#3D434B;
  padding:0 4px 22px;
  max-width:760px;
}
.faq-a p a{color:#C43A12;text-decoration:underline;}

/* ---------- CTA ---------- */
.cta-section{padding:var(--space) 0;}
.cta-panel{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-lg);
  background:var(--brand-grad);
  padding:56px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
  flex-wrap:wrap;
  box-shadow:0 26px 60px rgba(255,61,110,.24);
}
.cta-panel::before,
.cta-panel::after{
  content:"";
  position:absolute;
  border-radius:50%;
  background:rgba(255,255,255,.16);
  filter:blur(2px);
  pointer-events:none;
}
.cta-panel::before{width:260px;height:260px;top:-110px;right:-60px;}
.cta-panel::after{width:180px;height:180px;bottom:-90px;left:32%;opacity:.6;}
.cta-copy{position:relative;z-index:2;max-width:640px;}
.cta-copy h2{
  font-size:clamp(22px,2.6vw,34px);
  font-weight:700;
  color:#17090a;
  line-height:1.3;
  letter-spacing:-.01em;
}
.cta-copy p{
  margin-top:12px;
  font-size:15px;
  color:rgba(23,9,10,.78);
  font-weight:600;
}
.cta-actions{
  position:relative;
  z-index:2;
  display:flex;
  gap:14px;
  flex-wrap:wrap;
}
.btn-dark{
  background:#17090a;
  color:var(--text-hi);
  box-shadow:0 12px 28px rgba(23,9,10,.28);
}
.btn-dark:hover{transform:translateY(-2px);box-shadow:0 18px 36px rgba(23,9,10,.38);}
.btn-outline-dark{
  background:transparent;
  border:1px solid rgba(23,9,10,.45);
  color:#17090a;
}
.btn-outline-dark:hover{background:rgba(23,9,10,.1);transform:translateY(-2px);}

/* ---------- 页脚 ---------- */
.site-foot{
  background:var(--ink-800);
  border-top:1px solid var(--line);
  padding:72px 0 0;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:48px;
  padding-bottom:56px;
}
.foot-brand p{
  margin-top:16px;
  font-size:13.5px;
  line-height:1.85;
  color:var(--text-mid);
  max-width:300px;
}
.social-row{display:flex;gap:10px;margin-top:20px;}
.social-btn{
  width:38px;height:38px;
  border-radius:50%;
  border:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:14px;
  color:var(--text-mid);
  transition:all .2s ease;
}
.social-btn:hover{color:var(--brand);border-color:var(--brand);transform:translateY(-2px);}
.foot-col h4{
  font-size:14px;
  font-weight:700;
  color:var(--text-hi);
  margin-bottom:18px;
  letter-spacing:.02em;
}
.foot-col ul li{
  font-size:13.5px;
  color:var(--text-mid);
  padding:6px 0;
}
.foot-col ul li a{transition:color .2s ease,padding-left .2s ease;}
.foot-col ul li a:hover{color:var(--brand);padding-left:4px;}
.foot-bottom{
  border-top:1px solid var(--line);
  padding:22px 0 26px;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  font-size:12.5px;
  color:var(--text-low);
}

/* ---------- 滚动淡入 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s ease;}
.reveal.in-view{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{--space:64px;}
  .head-actions .head-link{display:none;}
  .head-inner{gap:14px;}
  .chip{height:32px;padding:0 13px;font-size:13px;}
  .split-card{grid-template-columns:1fr;}
  .split-media{min-height:280px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:860px){
  .nav-toggle{display:flex;}
  .head-actions{display:none;}
  .chip-nav{
    position:fixed;
    top:0;
    right:0;
    width:min(320px,84vw);
    height:100vh;
    padding:88px 22px 28px;
    flex-direction:column;
    align-items:stretch;
    gap:12px;
    background:rgba(11,13,16,.98);
    backdrop-filter:blur(18px);
    border-left:1px solid var(--line);
    transform:translateX(105%);
    transition:transform .3s ease;
    z-index:130;
    overflow-y:auto;
  }
  body.nav-open .chip-nav{transform:translateX(0);}
  .chip{
    width:100%;
    justify-content:center;
    height:44px;
    font-size:15px;
  }
  .chip-nav::after{
    content:"立即登录";
    display:flex;
    align-items:center;
    justify-content:center;
    height:46px;
    margin-top:12px;
    border-radius:999px;
    background:var(--brand-grad);
    color:#17090a;
    font-size:15px;
    font-weight:700;
  }
  .chip-nav{padding-bottom:40px;}
  .timeline-wrap{padding:12px 20px 6px;}
  .timeline::before{left:24px;}
  .tl-item{grid-template-columns:52px 1fr;gap:18px;}
  .tl-num{width:52px;height:50px;font-size:19px;border-radius:12px;}
  .stat-item{flex:1 1 100%;}
  .stat-item + .stat-item{border-left:0;border-top:1px solid var(--line);margin-top:6px;padding-top:14px;}
  .cta-panel{padding:40px 28px;}
}
@media (max-width:640px){
  :root{--space:44px;}
  .container,.head-inner{padding:0 16px;}
  .head-inner{height:60px;}
  .brand-text{font-size:15px;}
  .page-hero{padding:36px 0 48px;}
  .hero-sub{font-size:15px;}
  .filter-row{margin-top:22px;}
  .stat-strip{padding:14px 4px;}
  .stat-item{padding:4px 16px;}
  .section-head{margin-bottom:24px;flex-direction:column;align-items:flex-start;}
  .timeline-wrap{padding:10px 16px 4px;border-radius:var(--radius);}
  .timeline::before{display:none;}
  .tl-item{grid-template-columns:1fr;gap:10px;padding:22px 0;}
  .tl-num{width:46px;height:44px;font-size:18px;}
  .tl-body h3{font-size:17px;}
  .tl-body p{font-size:14px;}
  .split-media{min-height:220px;}
  .split-body{padding:26px 20px;}
  .faq-q{font-size:15px;padding:18px 0;}
  .cta-panel{padding:32px 22px;border-radius:var(--radius);}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .foot-grid{grid-template-columns:1fr;gap:30px;padding-bottom:40px;}
  .site-foot{padding-top:52px;}
  .foot-bottom{flex-direction:column;}
  .pager{gap:8px;}
  .pager-num{width:34px;height:34px;}
}