/* roulang page: index */
:root{
  --bg-0:#060A11;
  --bg-1:#0B1220;
  --bg-2:#111A2A;
  --surface:rgba(255,255,255,.045);
  --surface-2:rgba(255,255,255,.075);
  --line:rgba(140,190,230,.16);
  --line-strong:rgba(140,190,230,.30);
  --primary:#21E6A8;
  --primary-ink:#04120D;
  --accent:#FF6A2B;
  --info:#5AA9FF;
  --text:#E8F1F8;
  --text-2:#B7C7D6;
  --muted:#8FA3B6;
  --danger:#FF5470;
  --warning:#FFC24B;
  --light-bg:#F2F6F9;
  --light-text:#0B1220;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:10px;
  --shadow-card:0 1px 0 rgba(255,255,255,.06) inset, 0 24px 48px -28px rgba(0,0,0,.9);
  --shadow-cta:0 0 0 1px rgba(33,230,168,.45), 0 10px 30px -10px rgba(33,230,168,.55);
  --max:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background-color:var(--bg-0);
  background-image:linear-gradient(rgba(140,190,230,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(140,190,230,.04) 1px,transparent 1px);
  background-size:120px 120px;
  background-attachment:fixed;
  color:var(--text);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding-left:1.15em}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--max);margin-inline:auto;padding-inline:24px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--primary);color:var(--primary-ink);padding:10px 18px;border-radius:0 0 10px 0;z-index:200;font-weight:700}
.skip-link:focus{left:0}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(11,18,32,.86);
  -webkit-backdrop-filter:blur(12px) saturate(120%);
  backdrop-filter:blur(12px) saturate(120%);
  border-top:2px solid var(--primary);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:inherit;flex:none}
.brand-mark{
  width:36px;height:36px;flex:none;
  display:grid;place-items:center;
  background:var(--primary);color:var(--primary-ink);
  font-size:15px;font-weight:800;letter-spacing:-.02em;
  border-radius:9px;
  clip-path:polygon(0 0,100% 0,100% 70%,calc(100% - 9px) 100%,0 100%);
  font-variant-numeric:tabular-nums;
}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-main{font-size:20px;font-weight:800;letter-spacing:-.01em}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.08em;margin-top:2px}
.nav-chips{
  display:flex;align-items:center;gap:4px;
  padding:4px;margin-inline:auto;
  border-radius:999px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
}
.chip{
  display:inline-flex;align-items:center;
  height:34px;padding:0 14px;
  border-radius:999px;
  font-size:14px;color:var(--text-2);
  text-decoration:none;white-space:nowrap;
  transition:background .18s ease-out,color .18s ease-out,box-shadow .18s ease-out;
}
.chip:hover{background:var(--surface-2);color:var(--text)}
.chip.is-active{
  background:rgba(33,230,168,.14);
  color:var(--primary);
  box-shadow:inset 0 0 0 1px rgba(33,230,168,.45),inset 0 -2px 0 var(--primary);
}
.header-right{display:flex;align-items:center;gap:16px;flex:none}
.header-right::before{content:"";width:1px;height:24px;background:var(--line)}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:10px;
  background:var(--surface);border:1px solid var(--line);
  color:var(--text);cursor:pointer;padding:0;
}
.nav-toggle span{display:block;width:16px;height:2px;background:currentColor;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:16px;height:2px;background:currentColor;transition:transform .2s ease-out}
.nav-toggle span::before{top:-5px}
.nav-toggle span::after{top:5px}

/* 移动抽屉 */
.drawer{
  position:fixed;left:0;right:0;top:64px;bottom:0;z-index:95;
  background:var(--bg-1);
  border-top:1px solid var(--line);
  padding:20px 16px 96px;
  overflow-y:auto;
  display:none;
  flex-direction:column;gap:6px;
}
.drawer.is-open{display:flex}
.drawer a{
  display:flex;align-items:center;
  height:48px;padding:0 16px;
  border-radius:12px;
  font-size:16px;color:var(--text-2);text-decoration:none;
  border:1px solid transparent;
  transition:background .18s,color .18s;
}
.drawer a:active{background:var(--surface-2)}
.drawer a.is-active{background:rgba(33,230,168,.14);color:var(--primary);border-color:rgba(33,230,168,.45)}
.drawer-cta{position:fixed;left:16px;right:16px;bottom:20px;display:none}
.drawer.is-open ~ .drawer-cta,.drawer-cta.is-open{display:flex}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;
  border-radius:var(--r-sm);
  font-size:15px;font-weight:700;
  text-decoration:none;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out,color .18s ease-out,border-color .18s ease-out,filter .18s ease-out;
}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--primary);color:var(--primary-ink);box-shadow:var(--shadow-cta)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0);filter:brightness(.97)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text)}
.btn-ghost:hover{background:var(--surface-2);border-color:var(--primary);transform:translateY(-2px)}
.btn-block{width:100%}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  background:none;border:0;padding:0;height:auto;
  color:var(--primary);font-weight:600;font-size:14px;text-decoration:none;cursor:pointer;
}
.btn-link .arw{transition:transform .18s ease-out}
.btn-link:hover .arw{transform:translateX(4px)}

/* ============ 眉标与板块标题 ============ */
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.1em;color:var(--text-2);margin-bottom:18px}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--primary);display:block}
.section{padding-block:88px}
.section--tight{padding-block:64px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:32px}
.section-head h2{
  font-size:clamp(24px,2.6vw,34px);line-height:1.25;font-weight:700;
  position:relative;padding-left:16px;letter-spacing:-.01em;
}
.section-head h2::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:2px;background:var(--primary)}
.section-head .head-note{font-size:14px;color:var(--muted);max-width:34em;margin-top:10px;padding-left:16px}

/* ============ 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-1.webp);
  background-size:cover;background-position:center;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(6,10,17,.94) 0%,rgba(6,10,17,.72) 55%,rgba(6,10,17,.55) 100%);
}
.hero-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:48px;align-items:center;
  padding-block:96px;
}
.hero h1{
  font-size:clamp(32px,4.4vw,54px);line-height:1.12;font-weight:800;
  letter-spacing:-.02em;margin-bottom:20px;
}
.hero-sub{font-size:17px;line-height:1.8;color:var(--text-2);max-width:36em;margin-bottom:32px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;gap:0;margin-top:44px;flex-wrap:wrap}
.hero-stat{padding-right:28px}
.hero-stat + .hero-stat{border-left:1px solid var(--line);padding-left:28px}
.hero-stat b{display:block;font-size:24px;font-weight:800;font-variant-numeric:tabular-nums;line-height:1.3}
.hero-stat span{font-size:12px;color:var(--muted);letter-spacing:.02em}

/* 入口面板 */
.entry-panel{
  position:relative;
  background:var(--surface);
  -webkit-backdrop-filter:blur(12px) saturate(120%);
  backdrop-filter:blur(12px) saturate(120%);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:30px 26px 24px;
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.entry-panel::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--primary)}
.panel-title{font-size:16px;font-weight:700;margin-bottom:4px}
.panel-desc{font-size:12px;color:var(--muted);margin-bottom:5px}
.entry-steps{margin-top:14px}
.entry-step{display:flex;gap:12px;padding:11px 0;border-bottom:1px dashed var(--line)}
.entry-step .num{font-size:13px;font-weight:800;color:var(--primary);font-variant-numeric:tabular-nums;letter-spacing:.04em;flex:none;padding-top:3px}
.entry-step h4{font-size:15px;font-weight:600;line-height:1.4}
.entry-step p{font-size:12px;color:var(--muted);line-height:1.6;margin-top:2px}
.field{margin-top:14px}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:6px}
.field label .req{color:var(--primary)}
.field input{
  width:100%;height:44px;padding:0 14px;
  border-radius:var(--r-sm);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  color:var(--text);font-size:14px;font-family:inherit;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.field input::placeholder{color:var(--muted)}
.field input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(33,230,168,.18)}
.entry-panel .btn{margin-top:18px}
.panel-note{font-size:11px;color:var(--muted);line-height:1.65;margin-top:14px}

/* ============ 信任数据条 ============ */
.trust-bar{background:var(--surface);border-bottom:1px solid var(--line)}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.trust-item{padding:26px 12px;text-align:center;border-left:1px solid var(--line)}
.trust-item:first-child{border-left:0}
.trust-item b{display:block;font-size:28px;font-weight:800;font-variant-numeric:tabular-nums;line-height:1.3}
.trust-item span{font-size:12px;color:var(--muted);letter-spacing:.02em}

/* ============ 痛点区 ============ */
.pain-grid{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:48px;align-items:start}
.pain-side h2{font-size:clamp(24px,2.6vw,34px);line-height:1.25;font-weight:700;letter-spacing:-.01em}
.pain-side p{font-size:15px;color:var(--text-2);margin-top:16px;line-height:1.8}
.pain-list{list-style:none;padding:0;margin:0}
.pain-item{display:flex;gap:20px;padding:26px 0;border-top:1px solid var(--line)}
.pain-item:last-child{border-bottom:1px solid var(--line)}
.pain-num{font-size:28px;font-weight:800;line-height:1.1;flex:none;color:var(--primary);-webkit-text-stroke:1px rgba(33,230,168,.55);font-variant-numeric:tabular-nums}
.pain-body h3{font-size:17px;font-weight:600;margin-bottom:6px}
.pain-body p{font-size:14px;color:var(--muted);line-height:1.75}

/* ============ 解决方案 ============ */
.solution-grid{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:24px;align-items:start}
.flow-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:32px;
  box-shadow:var(--shadow-card);
}
.flow-card h3{font-size:20px;font-weight:700}
.flow-card .flow-desc{font-size:14px;color:var(--muted);margin-top:8px}
.flow-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:34px}
.flow-step{position:relative;padding-top:26px;border-top:1px solid var(--line-strong)}
.flow-step::before{content:"";position:absolute;top:-5px;left:0;width:9px;height:9px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px rgba(33,230,168,.14)}
.flow-step b{display:block;font-size:13px;color:var(--primary);letter-spacing:.06em;margin-bottom:4px;font-variant-numeric:tabular-nums}
.flow-step h4{font-size:16px;font-weight:600;margin-bottom:6px}
.flow-step p{font-size:13px;color:var(--muted);line-height:1.7}
.cap-stack{display:flex;flex-direction:column;gap:16px}
.cap-card{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);padding:20px;
  transition:transform .18s ease-out,border-color .18s ease-out,background .18s ease-out;
}
.cap-card:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.cap-ico{
  width:38px;height:38px;flex:none;border-radius:10px;
  background:rgba(33,230,168,.12);color:var(--primary);
  display:grid;place-items:center;
}
.cap-ico svg{width:20px;height:20px}
.cap-card h4{font-size:16px;font-weight:600;margin-bottom:4px}
.cap-card p{font-size:13px;color:var(--muted);line-height:1.7}

/* ============ 成果区 ============ */
.light-panel{
  background:var(--light-bg);color:var(--light-text);
  border-radius:var(--r-lg);
  border:1px solid rgba(11,18,32,.10);
  padding:36px 34px;
}
.light-panel h3{font-size:20px;font-weight:700;color:var(--light-text)}
.light-panel .lp-note{font-size:14px;color:rgba(11,18,32,.66);margin-top:8px;line-height:1.75}
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:26px}
.stat-cell{border-left:2px solid rgba(11,18,32,.16);padding-left:16px}
.stat-cell:first-child{border-left:0;padding-left:0}
.stat-cell b{display:block;font-size:26px;font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:-.01em;color:#0B1220;line-height:1.35}
.stat-cell span{font-size:12px;color:rgba(11,18,32,.6);letter-spacing:.02em}
.case-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:24px}
.case-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;text-decoration:none;color:inherit;
  display:block;
  transition:transform .18s ease-out,border-color .18s ease-out;
}
.case-card:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.case-media{overflow:hidden;position:relative}
.case-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .2s ease-out}
.case-card:hover .case-media img{transform:scale(1.03)}
.case-body{padding:20px 22px 22px}
.case-body h4{font-size:18px;font-weight:700;line-height:1.5;margin-bottom:8px}
.case-body p{font-size:14px;color:var(--muted);line-height:1.7}
.case-body .btn-link{margin-top:14px}

/* ============ 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:24px;align-items:start}
.news-lead{
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;text-decoration:none;color:inherit;
  transition:transform .18s ease-out,border-color .18s ease-out;
}
.news-lead:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.news-lead__media{position:relative;overflow:hidden}
.news-lead__media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .2s ease-out}
.news-lead:hover .news-lead__media img{transform:scale(1.03)}
.tag{
  display:inline-flex;align-items:center;
  height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;letter-spacing:.02em;
  background:rgba(33,230,168,.14);color:var(--primary);
  box-shadow:inset 0 0 0 1px rgba(33,230,168,.4);
}
.tag--float{position:absolute;left:14px;bottom:14px;background:rgba(6,10,17,.78);box-shadow:inset 0 0 0 1px rgba(33,230,168,.45)}
.tag--sm{height:22px;font-size:11px;padding:0 9px}
.news-lead__body{padding:22px}
.news-lead__body h3{font-size:19px;font-weight:700;line-height:1.55;margin-bottom:8px}
.news-lead__body p{font-size:14px;color:var(--muted);line-height:1.75}
.meta-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:12px;color:var(--muted);margin-top:14px;letter-spacing:.02em}
.meta-row .dot{width:3px;height:3px;border-radius:50%;background:var(--muted);display:block}
.meta-row .link-more{margin-left:auto;color:var(--primary);font-weight:600}
.news-list{display:flex;flex-direction:column}
.news-item{
  display:flex;align-items:flex-start;gap:16px;
  padding:18px 0 18px 14px;
  border-bottom:1px solid var(--line);
  border-left:2px solid transparent;
  text-decoration:none;color:inherit;
  transition:border-left-color .18s ease-out,background .18s ease-out;
}
.news-item:first-child{padding-top:0}
.news-item:hover{border-left-color:var(--primary);background:rgba(255,255,255,.025)}
.news-item__text{flex:1;min-width:0}
.news-item h4{font-size:16px;font-weight:600;line-height:1.55;margin-bottom:5px}
.news-item p{font-size:13px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-item .meta-row{margin-top:8px;gap:8px}
.news-item__arrow{color:var(--muted);flex:none;font-size:16px;line-height:1.6;transition:transform .18s ease-out,color .18s ease-out}
.news-item:hover .news-item__arrow{color:var(--primary);transform:translateX(3px)}
.empty-state{
  grid-column:1 / -1;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  padding:56px 24px;text-align:center;
  background:var(--surface);border:1px dashed var(--line-strong);border-radius:var(--r-md);
}
.empty-state .empty-ico{width:40px;height:40px;color:var(--muted)}
.empty-state p{font-size:14px;color:var(--muted)}

/* ============ 证言 ============ */
.quotes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;align-items:start}
.quote{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);padding:24px 22px;
  -webkit-backdrop-filter:blur(12px) saturate(120%);
  backdrop-filter:blur(12px) saturate(120%);
  transition:transform .18s ease-out,border-color .18s ease-out;
}
.quote:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.quote-mark{font-size:32px;line-height:1;color:var(--primary);font-weight:800}
.quote-text{font-size:15px;color:var(--text-2);line-height:1.85;margin-top:8px}
.quote-foot{display:flex;align-items:center;gap:12px;margin-top:20px}
.avatar{
  width:40px;height:40px;border-radius:50%;flex:none;
  background:var(--bg-2);color:var(--primary);
  display:grid;place-items:center;font-size:13px;font-weight:700;
  border:1px solid var(--line);
}
.quote-who strong{display:block;font-size:14px;font-weight:600;line-height:1.4}
.quote-who span{font-size:12px;color:var(--muted)}
.rate{display:flex;gap:4px;margin-left:auto}
.rate i{width:8px;height:8px;border-radius:2px;background:var(--primary);display:block;opacity:.85}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:48px;align-items:start}
.faq-side h2{font-size:clamp(24px,2.6vw,34px);line-height:1.25;font-weight:700;letter-spacing:-.01em}
.faq-side p{font-size:15px;color:var(--text-2);margin-top:16px;line-height:1.8}
.faq-side .btn{margin-top:24px}
.faq-list{
  background:var(--surface);
  -webkit-backdrop-filter:blur(12px) saturate(120%);
  backdrop-filter:blur(12px) saturate(120%);
  border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;
}
.faq-item{border-bottom:1px solid var(--line);transition:box-shadow .2s ease-out}
.faq-item:last-child{border-bottom:0}
.faq-item.is-open{box-shadow:inset 0 0 0 1px rgba(33,230,168,.35)}
.faq-q{
  width:100%;min-height:56px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 22px;
  background:none;border:0;
  color:var(--text);font-size:17px;font-weight:600;text-align:left;
  cursor:pointer;line-height:1.55;
}
.faq-q:hover{color:var(--primary)}
.faq-ic{position:relative;width:18px;height:18px;flex:none;transition:transform .25s ease-out}
.faq-ic::before,.faq-ic::after{content:"";position:absolute;background:var(--primary);border-radius:2px}
.faq-ic::before{top:8px;left:0;width:18px;height:2px}
.faq-ic::after{left:8px;top:0;width:2px;height:18px}
.faq-item.is-open .faq-ic{transform:rotate(45deg)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .28s ease-out}
.faq-item.is-open .faq-a{grid-template-rows:1fr}
.faq-a > div{overflow:hidden}
.faq-a p{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--text-2)}

/* ============ CTA 横幅 ============ */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  background:var(--surface);
  border:1px solid rgba(33,230,168,.45);
  border-radius:var(--r-lg);
  padding:34px 40px;
  -webkit-backdrop-filter:blur(12px) saturate(120%);
  backdrop-filter:blur(12px) saturate(120%);
}
.cta-band h2{font-size:clamp(20px,2.1vw,26px);font-weight:700;line-height:1.4}
.cta-band p{font-size:14px;color:var(--text-2);margin-top:8px;max-width:36em}
.cta-band .btn{flex:none}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);margin-top:64px;padding-top:64px}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,2fr) minmax(0,1fr) minmax(0,1fr) minmax(0,1.3fr);
  gap:40px;padding-bottom:48px;
}
.footer-brand .brand{margin-bottom:16px}
.footer-desc{font-size:14px;color:var(--text-2);line-height:1.8;max-width:26em}
.footer-compliance{font-size:12px;color:var(--muted);line-height:1.7;margin-top:16px;max-width:30em}
.footer-col h5{font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--text);margin-bottom:16px}
.footer-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.footer-col a{
  font-size:14px;color:var(--text-2);text-decoration:none;
  transition:color .18s ease-out;
}
.footer-col a:hover{color:var(--primary)}
.footer-col p{font-size:13px;color:var(--muted);line-height:1.8}
.footer-bottom{
  border-top:1px solid var(--line);
  padding-block:20px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:var(--muted);letter-spacing:.02em;
}
.footer-bottom .to-top{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--text-2);text-decoration:none;font-size:12px;
  transition:color .18s ease-out;
}
.footer-bottom .to-top:hover{color:var(--primary)}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .hero-grid{gap:32px;padding-block:80px}
  .pain-grid,.faq-grid{gap:32px}
}
@media (max-width:1023px){
  .nav-chips{display:none}
  .nav-toggle{display:inline-flex}
  .header-right::before{display:none}
  .hero-grid{grid-template-columns:1fr;gap:36px;padding-block:64px}
  .hero-stats{margin-top:32px}
  .pain-grid,.solution-grid,.faq-grid,.news-grid,.case-grid{grid-template-columns:1fr}
  .flow-steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 20px}
  .quotes{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
  .trust-item:nth-child(3){border-left:0}
  .trust-item:nth-child(3),.trust-item:nth-child(4){border-top:1px solid var(--line)}
  .entry-panel{padding:26px 22px 22px}
  .section{padding-block:64px}
}
@media (max-width:767px){
  .container{padding-inline:16px}
  .header-inner{height:56px;gap:12px}
  .brand-main{font-size:17px}
  .brand-sub{font-size:10px;letter-spacing:.06em}
  .brand-mark{width:32px;height:32px;font-size:13px}
  .header-right .btn{height:34px;padding:0 14px;font-size:13px}
  .drawer{top:56px}
  .section{padding-block:48px}
  .hero-grid{padding-block:48px}
  .hero h1{font-size:clamp(28px,7.2vw,36px)}
  .hero-sub{font-size:15px;margin-bottom:24px}
  .hero-actions .btn{width:100%}
  .hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:28px}
  .hero-stat{padding:0;border-left:0!important}
  .hero-stat b{font-size:18px}
  .hero-stat span{font-size:11px;line-height:1.5;display:block}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
  .trust-item{padding:20px 8px}
  .trust-item b{font-size:22px}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px}
  .stat-row{grid-template-columns:1fr;gap:16px}
  .stat-cell{border-left:0;padding-left:0;border-top:1px solid rgba(11,18,32,.12);padding-top:14px}
  .stat-cell:first-child{border-top:0;padding-top:0}
  .light-panel{padding:26px 20px}
  .quotes{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:14px;padding-bottom:8px;-webkit-overflow-scrolling:touch}
  .quotes::-webkit-scrollbar{display:none}
  .quote{min-width:82%;scroll-snap-align:start}
  .flow-steps{grid-template-columns:1fr;gap:0}
  .flow-step{border-top:0;border-left:1px solid var(--line-strong);padding:0 0 24px 22px}
  .flow-step::before{top:6px;left:-5px}
  .flow-step:last-child{padding-bottom:0}
  .cta-band{padding:26px 20px;flex-direction:column;align-items:flex-start}
  .cta-band .btn{width:100%}
  .faq-q{font-size:16px;padding:16px 18px}
  .faq-a p{padding:0 18px 18px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .news-lead__body{padding:18px}
  .news-lead__body h3{font-size:17px}
}
@media (max-width:480px){
  .hero h1{font-size:26px}
  .section-head h2,.pain-side h2,.faq-side h2{font-size:22px}
  .quote{min-width:88%}
  .brand-sub{display:none}
  .entry-panel{padding:22px 16px 18px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .btn:hover,.cap-card:hover,.quote:hover,.case-card:hover,.news-lead:hover{transform:none}
}

/* roulang page: category1 */
:root{
  --bg-0:#060A11;
  --bg-1:#0B1220;
  --bg-2:#111A2A;
  --surface:rgba(255,255,255,.045);
  --surface-2:rgba(255,255,255,.075);
  --line:rgba(140,190,230,.16);
  --line-strong:rgba(140,190,230,.30);
  --primary:#21E6A8;
  --primary-ink:#04120D;
  --accent:#FF6A2B;
  --info:#5AA9FF;
  --text:#E8F1F8;
  --text-2:#B7C7D6;
  --muted:#8FA3B6;
  --danger:#FF5470;
  --warning:#FFC24B;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:10px;
  --r-pill:999px;
  --sh-card:0 1px 0 rgba(255,255,255,.06) inset,0 24px 48px -28px rgba(0,0,0,.9);
  --sh-cta:0 0 0 1px rgba(33,230,168,.45),0 10px 30px -10px rgba(33,230,168,.55);
  --ease:cubic-bezier(.32,.72,.28,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(140,190,230,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(140,190,230,.04) 1px,transparent 1px);
  background-size:120px 120px;
}
body::after{
  content:"";
  position:fixed;
  top:0;left:0;right:0;
  height:2px;
  background:var(--primary);
  z-index:80;
  pointer-events:none;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4,h5,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}
.num{font-variant-numeric:tabular-nums;}

/* ================= 顶部导航 ================= */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(11,18,32,.82);
  -webkit-backdrop-filter:blur(12px) saturate(120%);
  backdrop-filter:blur(12px) saturate(120%);
  border-bottom:1px solid var(--line);
}
.header-inner{
  height:64px;
  display:flex;
  align-items:center;
  gap:24px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.brand-mark{
  width:38px;height:38px;
  display:grid;place-items:center;
  background:var(--primary);
  color:var(--primary-ink);
  font-weight:800;
  font-size:15px;
  letter-spacing:.02em;
  border-radius:9px;
  clip-path:polygon(0 0,100% 0,100% 72%,88% 100%,0 100%);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-main{font-size:20px;font-weight:800;color:var(--text);letter-spacing:-.01em;}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.08em;}
.nav-chips{
  display:flex;
  align-items:center;
  gap:4px;
  padding:4px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  overflow-x:auto;
  scrollbar-width:none;
  scroll-snap-type:x proximity;
}
.nav-chips::-webkit-scrollbar{display:none;}
.chip{
  display:inline-flex;
  align-items:center;
  height:34px;
  padding:0 14px;
  border-radius:var(--r-pill);
  font-size:14px;
  color:var(--text-2);
  white-space:nowrap;
  scroll-snap-align:start;
  border:1px solid transparent;
  position:relative;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.chip:hover{background:var(--surface-2);color:var(--text);}
.chip.is-active{
  background:rgba(33,230,168,.14);
  color:var(--primary);
  border-color:rgba(33,230,168,.45);
}
.chip.is-active::after{
  content:"";
  position:absolute;
  left:50%;
  transform:translateX(-50%);
  bottom:-5px;
  width:18px;
  height:2px;
  background:var(--primary);
  border-radius:2px;
}
.header-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:16px;
  flex:0 0 auto;
}
.header-actions::before{
  content:"";
  width:1px;
  height:24px;
  background:var(--line);
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--r-sm);
  font-size:15px;
  font-weight:700;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s var(--ease),background .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.btn-primary{
  background:var(--primary);
  color:var(--primary-ink);
  box-shadow:var(--sh-cta);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(0) scale(.99);}
.btn-ghost{
  background:transparent;
  color:var(--text);
  border-color:var(--line-strong);
}
.btn-ghost:hover{background:var(--surface-2);border-color:var(--primary);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.nav-toggle{
  display:none;
  width:40px;height:40px;
  align-items:center;
  justify-content:center;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  color:var(--text);
  cursor:pointer;
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  background:currentColor;
  position:relative;
}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;height:2px;
  background:currentColor;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.mobile-drawer{
  position:fixed;
  inset:0;
  z-index:70;
  background:var(--bg-1);
  display:flex;
  flex-direction:column;
  padding:20px;
  transform:translateY(-102%);
  transition:transform .3s var(--ease);
  visibility:hidden;
}
.mobile-drawer.is-open{transform:translateY(0);visibility:visible;}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-bottom:16px;
  border-bottom:1px solid var(--line);
}
.drawer-close{
  width:40px;height:40px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  color:var(--text);
  font-size:20px;
  line-height:1;
  cursor:pointer;
}
.drawer-list{display:flex;flex-direction:column;padding:16px 0;flex:1;overflow-y:auto;}
.drawer-list a{
  height:48px;
  display:flex;
  align-items:center;
  padding:0 14px;
  border-radius:var(--r-sm);
  color:var(--text-2);
  font-size:16px;
  border-bottom:1px solid rgba(140,190,230,.08);
}
.drawer-list a.is-active{color:var(--primary);background:rgba(33,230,168,.10);}
.drawer-foot{padding-top:16px;border-top:1px solid var(--line);}

/* ================= 页头 ================= */
.page-hero{
  position:relative;
  padding:48px 0 56px;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  opacity:.55;
  z-index:0;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(6,10,17,.94) 0%,rgba(6,10,17,.72) 55%,rgba(6,10,17,.55) 100%);
  z-index:0;
}
.page-hero .container{position:relative;z-index:1;}
.crumbs{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  color:var(--muted);
  height:32px;
  flex-wrap:wrap;
}
.crumbs a{color:var(--muted);transition:color .18s var(--ease);}
.crumbs a:hover{color:var(--primary);}
.crumbs .sep{opacity:.6;}
.crumbs .current{color:var(--text-2);}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.10em;
  color:var(--primary);
  margin:24px 0 16px;
}
.eyebrow::before{
  content:"";
  width:24px;height:2px;
  background:var(--primary);
  border-radius:2px;
}
.page-hero h1{
  font-size:clamp(30px,4.2vw,50px);
  line-height:1.14;
  font-weight:800;
  letter-spacing:-.02em;
  max-width:900px;
}
.page-hero h1 em{
  font-style:normal;
  color:var(--primary);
}
.hero-lead{
  margin-top:20px;
  max-width:760px;
  font-size:16px;
  line-height:1.85;
  color:var(--text-2);
}
.subchips{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:28px;
}
.tag{
  display:inline-flex;
  align-items:center;
  height:32px;
  padding:0 14px;
  border-radius:var(--r-pill);
  font-size:13px;
  color:var(--text-2);
  background:var(--surface);
  border:1px solid var(--line);
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
a.tag:hover{background:var(--surface-2);color:var(--primary);border-color:rgba(33,230,168,.4);transform:translateY(-2px);}
.tag-strong{
  color:var(--primary);
  background:rgba(33,230,168,.12);
  border-color:rgba(33,230,168,.4);
}

/* ================= 数据条 ================= */
.stats-bar{
  margin-top:32px;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:24px 8px;
}
.stat{
  padding:0 24px;
  border-left:1px solid var(--line);
}
.stat:first-child{border-left:0;}
.stat-num{
  font-size:28px;
  font-weight:800;
  color:var(--primary);
  line-height:1.2;
  font-variant-numeric:tabular-nums;
}
.stat-label{
  display:block;
  margin-top:4px;
  font-size:12px;
  letter-spacing:.02em;
  color:var(--muted);
}

/* ================= 通用板块 ================= */
section{position:relative;}
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:32px;
}
.section-head h2{
  font-size:clamp(24px,2.6vw,34px);
  line-height:1.25;
  font-weight:700;
  letter-spacing:-.01em;
  padding-left:16px;
  position:relative;
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;top:6px;
  width:4px;height:24px;
  background:var(--primary);
  border-radius:2px;
}
.section-head .head-desc{
  margin-top:10px;
  padding-left:16px;
  font-size:14px;
  color:var(--muted);
  max-width:620px;
}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  color:var(--primary);
  white-space:nowrap;
}
.link-arrow i{font-style:normal;transition:transform .18s var(--ease);}
.link-arrow:hover i{transform:translateX(4px);}

/* ================= 分类主体布局 ================= */
.topic-layout{
  display:grid;
  grid-template-columns:250px minmax(0,1fr);
  gap:32px;
  align-items:start;
}
.anchor-nav{
  position:sticky;
  top:88px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:20px 16px;
  -webkit-backdrop-filter:blur(12px) saturate(120%);
  backdrop-filter:blur(12px) saturate(120%);
}
.anchor-nav h3{
  font-size:13px;
  letter-spacing:.06em;
  color:var(--muted);
  padding:0 10px 12px;
  border-bottom:1px solid var(--line);
  margin-bottom:10px;
  font-weight:600;
}
.anchor-nav a{
  display:flex;
  align-items:center;
  gap:10px;
  padding:10px 10px;
  border-radius:8px;
  font-size:14px;
  color:var(--text-2);
  border-left:2px solid transparent;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.anchor-nav a span{
  font-size:12px;
  color:var(--muted);
  font-variant-numeric:tabular-nums;
}
.anchor-nav a:hover{background:var(--surface-2);color:var(--text);}
.anchor-nav a.is-current{background:rgba(33,230,168,.10);color:var(--primary);border-left-color:var(--primary);}
.anchor-nav a.is-current span{color:var(--primary);}
.anchor-foot{
  margin-top:14px;
  padding:14px 10px 0;
  border-top:1px solid var(--line);
  font-size:12px;
  color:var(--muted);
  line-height:1.7;
}

/* ================= 卡片矩阵 ================= */
.block-title{
  display:flex;
  align-items:baseline;
  gap:12px;
  margin-bottom:20px;
}
.block-title h3{
  font-size:20px;
  font-weight:600;
}
.block-title .mini{
  font-size:12px;
  color:var(--muted);
  letter-spacing:.04em;
}
.card-matrix{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.card{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--sh-card);
  transition:transform .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
  display:flex;
  flex-direction:column;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);background:var(--surface-2);}
.card-media{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--bg-2);
}
.card-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .2s var(--ease);
}
.card:hover .card-media img{transform:scale(1.03);}
.card-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(6,10,17,0) 40%,rgba(6,10,17,.82) 100%);
}
.card-chip{
  position:absolute;
  left:14px;bottom:12px;
  z-index:2;
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  font-size:12px;
  letter-spacing:.02em;
  color:var(--primary-ink);
  background:var(--primary);
  border-radius:6px;
  clip-path:polygon(0 0,100% 0,100% 70%,90% 100%,0 100%);
}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h4{
  font-size:18px;
  font-weight:700;
  line-height:1.45;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-body p{
  font-size:14px;
  line-height:1.7;
  color:var(--text-2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-meta{
  margin-top:auto;
  padding-top:12px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  gap:10px;
  font-size:12px;
  color:var(--muted);
  font-variant-numeric:tabular-nums;
}
.card-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--muted);}
.card-meta .go{margin-left:auto;color:var(--primary);font-size:13px;}
.card-meta .go i{font-style:normal;display:inline-block;transition:transform .18s var(--ease);}
.card:hover .card-meta .go i{transform:translateX(4px);}
.card-big{grid-column:1 / -1;}
.card-big .card-body h4{font-size:21px;}
.card-big .card-body p{-webkit-line-clamp:3;font-size:15px;}

/* 小信息卡组 */
.mini-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:16px;
  margin-top:24px;
}
.mini-card{
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  padding:18px;
  transition:border-color .18s var(--ease),transform .18s var(--ease);
}
.mini-card:hover{border-color:rgba(33,230,168,.4);transform:translateY(-3px);}
.mini-card .idx{
  font-size:13px;
  color:var(--primary);
  font-weight:700;
  font-variant-numeric:tabular-nums;
  letter-spacing:.06em;
}
.mini-card h5{
  margin:8px 0 6px;
  font-size:15px;
  font-weight:600;
}
.mini-card p{font-size:13px;line-height:1.7;color:var(--muted);}

/* ================= 对照表 ================= */
.table-wrap{
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:auto;
  background:var(--surface);
}
table{
  width:100%;
  border-collapse:collapse;
  min-width:640px;
  font-size:14px;
}
thead th{
  text-align:left;
  padding:14px 18px;
  background:var(--surface-2);
  color:var(--text);
  font-weight:600;
  font-size:13px;
  letter-spacing:.04em;
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
tbody td{
  padding:14px 18px;
  color:var(--text-2);
  border-bottom:1px solid var(--line);
  line-height:1.7;
  vertical-align:top;
}
tbody tr:nth-child(odd){background:rgba(255,255,255,.02);}
tbody tr:last-child td{border-bottom:0;}
tbody tr:hover{background:rgba(33,230,168,.06);}
tbody td:first-child{color:var(--text);font-weight:600;white-space:nowrap;}
.pill-state{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:var(--r-pill);
  font-size:12px;
  border:1px solid var(--line);
  color:var(--text-2);
}
.pill-state.ok{color:var(--primary);border-color:rgba(33,230,168,.4);background:rgba(33,230,168,.10);}
.pill-state.wait{color:var(--warning);border-color:rgba(255,194,75,.35);background:rgba(255,194,75,.10);}

/* ================= 紧凑列表 ================= */
.list-block{
  border-top:1px solid var(--line);
}
.list-item{
  display:grid;
  grid-template-columns:minmax(0,1fr) 96px 72px;
  gap:20px;
  align-items:center;
  padding:18px 0 18px 16px;
  border-bottom:1px solid var(--line);
  position:relative;
  transition:background .18s var(--ease);
}
.list-item::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  transform:translateY(-50%) scaleY(0);
  width:2px;height:calc(100% - 20px);
  background:var(--primary);
  border-radius:2px;
  transition:transform .18s var(--ease);
}
.list-item:hover{background:rgba(255,255,255,.03);}
.list-item:hover::before{transform:translateY(-50%) scaleY(1);}
.list-item h4{
  font-size:16px;
  font-weight:600;
  line-height:1.5;
  margin-bottom:4px;
}
.list-item p{
  font-size:13px;
  color:var(--muted);
  line-height:1.7;
  display:-webkit-box;
  -webkit-line-clamp:1;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.list-cat{
  justify-self:start;
  font-size:12px;
  color:var(--text-2);
  padding:3px 10px;
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  white-space:nowrap;
}
.list-time{
  font-size:12px;
  color:var(--muted);
  text-align:right;
  font-variant-numeric:tabular-nums;
  white-space:nowrap;
}

/* ================= 结尾 CTA ================= */
.cta-band{
  margin:0 0 72px;
  background:var(--surface);
  border:1px solid rgba(33,230,168,.35);
  border-radius:var(--r-lg);
  padding:36px 40px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  -webkit-backdrop-filter:blur(12px) saturate(120%);
  backdrop-filter:blur(12px) saturate(120%);
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  left:0;top:0;
  width:100%;height:2px;
  background:linear-gradient(90deg,var(--primary),rgba(33,230,168,0));
}
.cta-band h3{
  font-size:clamp(20px,2.2vw,26px);
  font-weight:700;
  line-height:1.35;
}
.cta-band p{
  margin-top:8px;
  font-size:14px;
  color:var(--text-2);
  max-width:560px;
}
.cta-actions{display:flex;gap:12px;flex:0 0 auto;flex-wrap:wrap;}

/* 相关分类 */
.related-cats{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px;
  padding:28px 0 8px;
  border-top:1px solid var(--line);
}
.related-cats .label{
  font-size:13px;
  color:var(--muted);
  letter-spacing:.04em;
  margin-right:4px;
}
.back-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  color:var(--text-2);
  transition:color .18s var(--ease);
}
.back-link:hover{color:var(--primary);}

/* ================= 页脚 ================= */
.site-footer{
  border-top:1px solid var(--line);
  background:var(--bg-1);
  padding:64px 0 28px;
  margin-top:24px;
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.4fr;
  gap:40px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-desc{
  font-size:14px;
  color:var(--text-2);
  line-height:1.8;
  max-width:300px;
}
.footer-compliance{
  margin-top:14px;
  font-size:12px;
  line-height:1.8;
  color:var(--muted);
  max-width:320px;
}
.footer-col h5{
  font-size:14px;
  font-weight:600;
  color:var(--text);
  margin-bottom:16px;
  letter-spacing:.04em;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col ul a{
  font-size:14px;
  color:var(--text-2);
  transition:color .18s var(--ease);
}
.footer-col ul a:hover{color:var(--primary);}
.footer-col p{
  font-size:13px;
  color:var(--muted);
  line-height:1.85;
}
.footer-bottom{
  margin-top:48px;
  padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-size:12px;
  color:var(--muted);
  flex-wrap:wrap;
}
.to-top{
  color:var(--text-2);
  transition:color .18s var(--ease);
}
.to-top:hover{color:var(--primary);}

/* ================= 响应式 ================= */
@media (max-width:1279px){
  .topic-layout{grid-template-columns:220px minmax(0,1fr);gap:24px;}
  .footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:32px;}
}
@media (max-width:1023px){
  .nav-chips{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions .btn{display:none;}
  .topic-layout{grid-template-columns:minmax(0,1fr);}
  .anchor-nav{position:static;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px;}
  .anchor-nav h3{grid-column:1 / -1;}
  .anchor-foot{grid-column:1 / -1;}
  .stats-bar{grid-template-columns:repeat(2,1fr);gap:20px 0;padding:20px 8px;}
  .stat:nth-child(3){border-left:0;}
  .stat:nth-child(3),.stat:nth-child(4){padding-top:16px;border-top:1px solid var(--line);}
  .section{padding:64px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px;}
  .cta-actions{width:100%;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .header-inner{height:56px;gap:12px;}
  .brand-mark{width:34px;height:34px;font-size:14px;}
  .brand-main{font-size:17px;}
  .brand-sub{font-size:10px;}
  .page-hero{padding:32px 0 40px;}
  .page-hero h1{font-size:clamp(26px,7.4vw,34px);}
  .hero-lead{font-size:15px;}
  .subchips{gap:8px;}
  .tag{height:30px;padding:0 12px;font-size:12px;}
  .section{padding:48px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:24px;}
  .section-head h2{font-size:22px;}
  .card-matrix{grid-template-columns:minmax(0,1fr);gap:16px;}
  .mini-grid{grid-template-columns:minmax(0,1fr);gap:12px;}
  .card-big .card-body h4{font-size:18px;}
  .list-item{grid-template-columns:minmax(0,1fr) 64px;gap:12px;padding-left:12px;}
  .list-item .list-time{display:none;}
  .cta-band{margin-bottom:48px;padding:24px 20px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .footer-col h5{margin-bottom:10px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
  .related-cats{padding-top:20px;}
}
@media (max-width:480px){
  .stats-bar{grid-template-columns:repeat(2,1fr);}
  .stat{padding:0 16px;}
  .stat-num{font-size:24px;}
  .card-body{padding:16px;}
  .anchor-nav{grid-template-columns:minmax(0,1fr);}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
  .card:hover,.mini-card:hover,a.tag:hover,.btn-primary:hover{transform:none !important;}
  .card:hover .card-media img{transform:none !important;}
}

/* roulang page: article */
:root{
  --bg-0:#060A11;
  --bg-1:#0B1220;
  --bg-2:#111A2A;
  --surface:rgba(255,255,255,.045);
  --surface-2:rgba(255,255,255,.075);
  --line:rgba(140,190,230,.16);
  --line-strong:rgba(140,190,230,.30);
  --primary:#21E6A8;
  --primary-ink:#04120D;
  --accent:#FF6A2B;
  --info:#5AA9FF;
  --text:#E8F1F8;
  --text-2:#B7C7D6;
  --muted:#8FA3B6;
  --danger:#FF5470;
  --success:#21E6A8;
  --warning:#FFC24B;
  --light-bg:#F2F6F9;
  --light-text:#0B1220;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:10px;
  --container:1200px;
  --shadow-card:0 1px 0 rgba(255,255,255,.06) inset, 0 24px 48px -28px rgba(0,0,0,.9);
  --shadow-cta:0 0 0 1px rgba(33,230,168,.45), 0 10px 30px -10px rgba(33,230,168,.55);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",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);
  background-color:var(--bg-0);
  background-image:
    linear-gradient(rgba(140,190,230,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(140,190,230,.04) 1px, transparent 1px);
  background-size:120px 120px;
  border-top:2px solid var(--primary);
  -webkit-font-smoothing:antialiased;
}
body.nav-open{overflow:hidden}
img{max-width:100%;display:block;border-style:none}
a{color:var(--info);text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,h5,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:8px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,18,32,.86);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(12px) saturate(120%);
  -webkit-backdrop-filter:blur(12px) saturate(120%);
}
.header-inner{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:none;color:var(--text)}
.brand-mark{
  width:34px;height:34px;display:grid;place-items:center;flex:none;
  background:var(--primary);color:var(--primary-ink);
  font-size:13px;font-weight:800;letter-spacing:.02em;
  border-radius:8px;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 9px),calc(100% - 9px) 100%,0 100%);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-main{font-size:19px;font-weight:800;letter-spacing:-.01em}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.08em}
.nav-chips{
  display:flex;align-items:center;gap:6px;margin:0 auto;
  padding:4px;border-radius:999px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 14px;
  border-radius:999px;font-size:14px;color:var(--text-2);
  white-space:nowrap;transition:background .18s ease,color .18s ease,box-shadow .18s ease;
}
.chip:hover{background:var(--surface-2);color:var(--text)}
.chip.is-active{
  background:rgba(33,230,168,.14);color:var(--primary);
  box-shadow:inset 0 0 0 1px rgba(33,230,168,.45);
}
.header-actions{
  display:flex;align-items:center;gap:16px;flex:none;
  border-left:1px solid var(--line);padding-left:24px;
}
.header-link{font-size:13px;color:var(--muted)}
.header-link:hover{color:var(--primary)}
.nav-toggle{
  display:none;width:40px;height:40px;flex:none;position:relative;
  border:1px solid var(--line);border-radius:10px;background:var(--surface);cursor:pointer;
}
.nav-toggle span{position:absolute;left:11px;right:11px;height:2px;background:var(--text);border-radius:2px;transition:transform .2s ease,opacity .2s ease,top .2s ease}
.nav-toggle span:nth-child(1){top:13px}
.nav-toggle span:nth-child(2){top:19px}
.nav-toggle span:nth-child(3){top:25px}
.nav-toggle.is-open span:nth-child(1){top:19px;transform:rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){top:19px;transform:rotate(-45deg)}
.mobile-drawer{
  display:none;position:fixed;left:0;right:0;top:64px;bottom:0;z-index:55;
  background:var(--bg-1);padding:20px 24px 32px;flex-direction:column;gap:4px;
  overflow-y:auto;border-top:1px solid var(--line);
}
.mobile-drawer.is-open{display:flex}
.mobile-drawer a.drawer-link{
  display:flex;align-items:center;height:48px;padding:0 4px;
  color:var(--text-2);font-size:16px;border-bottom:1px solid var(--line);
}
.mobile-drawer a.drawer-link:hover,.mobile-drawer a.drawer-link.is-active{color:var(--primary)}
.mobile-drawer .btn{margin-top:20px;width:100%}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-sm);
  font-size:15px;font-weight:700;cursor:pointer;border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--primary);color:var(--primary-ink);box-shadow:var(--shadow-cta)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line-strong)}
.btn-ghost:hover{background:var(--surface-2);border-color:var(--primary);color:var(--primary)}
.btn-sm{height:36px;padding:0 16px;font-size:13px}
.btn-block{width:100%}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary)}
.link-more .arrow{transition:transform .18s ease}
.link-more:hover .arrow{transform:translateX(4px)}

/* ============ 文章页头 ============ */
.article-hero{
  position:relative;padding:44px 0 52px;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(90deg,rgba(6,10,17,.96) 0%,rgba(6,10,17,.84) 55%,rgba(6,10,17,.66) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:12px;color:var(--muted);min-height:24px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:var(--line-strong)}
.breadcrumb .crumb-cat{color:var(--text-2)}
.breadcrumb .current{color:var(--text-2);max-width:280px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-hero .badge{
  display:inline-flex;align-items:center;margin-top:22px;height:26px;padding:0 12px;
  border-radius:999px;font-size:12px;letter-spacing:.02em;
  color:var(--primary);background:rgba(33,230,168,.12);
  box-shadow:inset 0 0 0 1px rgba(33,230,168,.4);
  clip-path:polygon(0 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%);
}
.article-hero h1{
  margin-top:16px;max-width:900px;
  font-size:clamp(28px,3.6vw,46px);line-height:1.2;font-weight:800;letter-spacing:-.02em;
}
.article-hero .lede{
  margin-top:16px;max-width:700px;font-size:16px;line-height:1.8;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.meta-row{display:flex;align-items:center;flex-wrap:wrap;gap:12px;margin-top:24px;font-size:12px;color:var(--muted);letter-spacing:.02em}
.meta-row .divider{width:1px;height:12px;background:var(--line-strong)}
.meta-row .meta-strong{color:var(--text-2)}

/* ============ 主体两栏 ============ */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 340px;
  gap:48px;padding:56px 0 8px;align-items:start;
}
.article-main{min-width:0}
.article-body{
  max-width:760px;font-size:17px;line-height:1.9;color:var(--text-2);
  overflow-wrap:break-word;word-break:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.1em}
.article-body h2{
  position:relative;margin:48px 0 16px;padding-left:14px;
  font-size:clamp(22px,2.2vw,28px);line-height:1.35;font-weight:700;color:var(--text);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:2px;background:var(--primary);
}
.article-body h3{margin:32px 0 12px;font-size:20px;line-height:1.45;font-weight:600;color:var(--text)}
.article-body h4{margin:24px 0 10px;font-size:17px;font-weight:600;color:var(--text)}
.article-body ul,.article-body ol{margin:0 0 1.1em;padding-left:1.35em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:.4em 0}
.article-body li::marker{color:var(--primary)}
.article-body a{color:var(--info);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--primary)}
.article-body strong{color:var(--text);font-weight:700}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;border-left:3px solid var(--primary);
  background:var(--surface);border-radius:0 12px 12px 0;color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:24px 0}
.article-body figure{margin:24px 0}
.article-body figcaption{margin-top:8px;text-align:center;font-size:12px;color:var(--muted)}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px;text-align:left;vertical-align:top}
.article-body th{background:var(--surface-2);color:var(--text);font-weight:600}
.article-body tr:nth-child(even) td{background:rgba(255,255,255,.02)}
.article-body code{
  background:#0A1018;border:1px solid var(--line);border-radius:6px;
  padding:1px 6px;font-size:.92em;color:var(--primary);
}
.article-body pre{
  background:#0A1018;border:1px solid var(--line);border-radius:12px;
  padding:16px;overflow-x:auto;margin:24px 0;
}
.article-body pre code{border:0;background:none;padding:0;color:var(--text-2);font-size:14px}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}

/* 标签行 */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:40px;padding-top:24px;border-top:1px solid var(--line)}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  font-size:12px;color:var(--text-2);background:var(--surface);
  border:1px solid var(--line);transition:border-color .18s ease,color .18s ease;
}
.tag:hover{border-color:var(--primary);color:var(--primary)}

/* 继续阅读双卡 */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:32px}
.post-nav a{
  display:block;padding:20px;border-radius:var(--r-md);
  background:var(--bg-2);border:1px solid var(--line);box-shadow:var(--shadow-card);
  transition:transform .18s ease,border-color .18s ease;
}
.post-nav a:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.post-nav .pn-dir{display:block;font-size:12px;letter-spacing:.06em;color:var(--muted)}
.post-nav .pn-title{display:block;margin-top:8px;font-size:16px;font-weight:600;color:var(--text);line-height:1.5}
.post-nav .pn-desc{display:block;margin-top:6px;font-size:13px;color:var(--muted);line-height:1.6}
.post-nav a:hover .pn-title{color:var(--primary)}

/* 空态 */
.empty-state{
  padding:56px 32px;text-align:center;border-radius:var(--r-lg);
  background:var(--bg-2);border:1px solid var(--line);box-shadow:var(--shadow-card);
}
.empty-state h2{font-size:24px;font-weight:700;color:var(--text)}
.empty-state p{margin:14px auto 26px;max-width:460px;font-size:15px;color:var(--text-2)}

/* ============ 侧栏 ============ */
.article-side{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px}
.side-card{
  border-radius:var(--r-md);background:rgba(17,26,42,.86);
  border:1px solid var(--line);box-shadow:var(--shadow-card);padding:20px;
  backdrop-filter:blur(12px) saturate(120%);
  -webkit-backdrop-filter:blur(12px) saturate(120%);
}
.side-card h3{
  font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--muted);
  padding-bottom:12px;border-bottom:1px solid var(--line);
}
.side-list{margin-top:6px}
.side-list li{padding:12px 0;border-bottom:1px dashed rgba(140,190,230,.12)}
.side-list li:last-child{border-bottom:0;padding-bottom:0}
.side-list .sl-label{font-size:12px;color:var(--muted)}
.side-list .sl-value{display:block;margin-top:2px;font-size:14px;color:var(--text);font-weight:600}
.side-links{margin-top:4px}
.side-links a{
  display:flex;align-items:flex-start;gap:10px;padding:12px 0;
  border-bottom:1px solid var(--line);transition:color .18s ease;
}
.side-links a:last-child{border-bottom:0}
.side-links .dot{width:6px;height:6px;flex:none;margin-top:9px;border-radius:50%;background:var(--primary)}
.side-links .sl-t{display:block;font-size:14px;font-weight:600;color:var(--text);line-height:1.5}
.side-links .sl-d{display:block;font-size:12px;color:var(--muted);margin-top:2px;line-height:1.6}
.side-links a:hover .sl-t{color:var(--primary)}
.side-cta{background:linear-gradient(180deg,rgba(33,230,168,.10),rgba(33,230,168,.03));border-color:rgba(33,230,168,.32)}
.side-cta p{font-size:13px;color:var(--text-2);line-height:1.75;margin:12px 0 16px}

/* ============ 相关推荐 ============ */
.section{padding:64px 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;color:var(--primary)}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--primary);border-radius:2px}
.section-head h2{margin-top:10px;font-size:clamp(22px,2.4vw,30px);font-weight:700;letter-spacing:-.01em}
.related-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:24px}
.rcard{
  display:flex;flex-direction:column;overflow:hidden;border-radius:var(--r-md);
  background:var(--bg-2);border:1px solid var(--line);box-shadow:var(--shadow-card);
  transition:transform .18s ease,border-color .18s ease;
}
.rcard:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.rcard .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-2)}
.rcard .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease}
.rcard:hover .thumb img{transform:scale(1.03)}
.rcard .thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,17,0) 45%,rgba(6,10,17,.85) 100%)}
.rcard .thumb .chip-cat{
  position:absolute;left:12px;bottom:12px;z-index:2;
  height:24px;display:inline-flex;align-items:center;padding:0 10px;border-radius:999px;
  font-size:11px;color:var(--primary-ink);background:var(--primary);font-weight:700;
}
.rcard .rbody{padding:18px;display:flex;flex-direction:column;gap:8px;flex:1}
.rcard .rtitle{font-size:17px;font-weight:700;line-height:1.45;color:var(--text)}
.rcard.big .rtitle{font-size:20px}
.rcard .rdesc{font-size:13px;line-height:1.7;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rcard .rfoot{margin-top:auto;padding-top:12px;font-size:12px;color:var(--muted);display:flex;align-items:center;justify-content:space-between}
.rcard .rfoot .go{color:var(--primary);font-weight:600}
.rcard:hover .rtitle{color:var(--primary)}

/* ============ CTA 横幅 ============ */
.cta-band{
  margin-top:64px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:32px;border-radius:var(--r-lg);
  background:rgba(33,230,168,.06);border:1px solid rgba(33,230,168,.32);
}
.cta-band h2{font-size:clamp(20px,2.2vw,26px);font-weight:700;letter-spacing:-.01em}
.cta-band p{margin-top:8px;font-size:14px;color:var(--text-2);max-width:640px}
.cta-band .btn{flex:none}

/* ============ 页脚 ============ */
.site-footer{margin-top:96px;padding-top:64px;border-top:1px solid var(--line);background:var(--bg-1)}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:40px}
.footer-col h5{font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--text);margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14px;color:var(--muted)}
.footer-col ul a:hover{color:var(--primary)}
.footer-col p{font-size:13px;line-height:1.8;color:var(--muted)}
.footer-desc{margin-top:16px;font-size:13px;color:var(--text-2);line-height:1.8;max-width:320px}
.footer-compliance{margin-top:12px;font-size:12px;line-height:1.8;color:var(--muted);max-width:340px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:48px;padding:20px 0 28px;border-top:1px solid var(--line);
  font-size:12px;color:var(--muted);
}
.to-top{font-size:12px;color:var(--muted)}
.to-top:hover{color:var(--primary)}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:36px}
  .related-grid{grid-template-columns:1.2fr 1fr 1fr;gap:20px}
}
@media (max-width:1023px){
  .nav-chips{display:none}
  .header-actions{border-left:0;padding-left:0;margin-left:auto}
  .header-actions .header-link{display:none}
  .nav-toggle{display:block}
  .article-layout{grid-template-columns:1fr;gap:32px}
  .article-side{position:static;flex-direction:row;flex-wrap:wrap}
  .article-side .side-card{flex:1 1 280px}
  .related-grid{grid-template-columns:1fr 1fr}
  .rcard.big{grid-column:1 / -1}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{flex-direction:column;align-items:flex-start}
  .cta-band .btn{width:100%}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .header-inner{height:56px;gap:12px}
  .mobile-drawer{top:56px}
  .article-hero{padding:32px 0 40px}
  .article-layout{padding-top:36px}
  .article-body{font-size:16px;line-height:1.85}
  .post-nav{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .section{padding-top:48px}
  .site-footer{margin-top:64px;padding-top:48px}
  .btn{width:100%}
  .header-actions .btn{width:auto}
  .breadcrumb .current{max-width:180px}
}
@media (max-width:480px){
  .brand-main{font-size:17px}
  .brand-sub{font-size:10px}
  .article-hero h1{font-size:26px}
  .meta-row{gap:8px;font-size:11px}
  .cta-band{padding:22px}
  .side-card{padding:16px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;scroll-behavior:auto !important}
  .rcard:hover,.post-nav a:hover,.btn-primary:hover{transform:none}
}

/* roulang page: category2 */
:root{
  --bg-0:#060A11;
  --bg-1:#0B1220;
  --bg-2:#111A2A;
  --surface:rgba(255,255,255,.045);
  --surface-2:rgba(255,255,255,.075);
  --line:rgba(140,190,230,.16);
  --line-strong:rgba(140,190,230,.30);
  --primary:#21E6A8;
  --primary-ink:#04120D;
  --accent:#FF6A2B;
  --info:#5AA9FF;
  --text:#E8F1F8;
  --text-2:#B7C7D6;
  --muted:#8FA3B6;
  --danger:#FF5470;
  --success:#21E6A8;
  --warning:#FFC24B;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:10px;
  --r-pill:999px;
  --shadow-card:0 1px 0 rgba(255,255,255,.06) inset, 0 24px 48px -28px rgba(0,0,0,.9);
  --shadow-btn:0 0 0 1px rgba(33,230,168,.45), 0 10px 30px -10px rgba(33,230,168,.55);
  --ease:180ms ease-out;
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:
    linear-gradient(rgba(140,190,230,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(140,190,230,.04) 1px, transparent 1px);
  background-size:120px 120px;
  pointer-events:none;
  z-index:0;
}
body::after{
  content:"";
  position:fixed;
  top:0;left:0;right:0;
  height:2px;
  background:var(--primary);
  z-index:60;
  pointer-events:none;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,h5,p{margin:0;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:4px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(11,18,32,.82);
  backdrop-filter:blur(12px) saturate(120%);
  -webkit-backdrop-filter:blur(12px) saturate(120%);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:64px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:34px;
  height:34px;
  display:grid;
  place-items:center;
  background:var(--primary);
  color:var(--primary-ink);
  font-size:14px;
  font-weight:800;
  letter-spacing:.02em;
  clip-path:polygon(0 0,100% 0,100% 68%,68% 100%,0 100%);
  border-radius:6px;
}
.brand-main{
  display:block;
  font-size:20px;
  font-weight:800;
  line-height:1.1;
  letter-spacing:-.01em;
  color:var(--text);
}
.brand-sub{
  display:block;
  font-size:11px;
  letter-spacing:.08em;
  color:var(--muted);
  line-height:1.4;
}
.nav-chips{
  display:flex;
  align-items:center;
  gap:6px;
  padding:4px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  margin-left:8px;
  overflow-x:auto;
  scrollbar-width:none;
}
.nav-chips::-webkit-scrollbar{display:none;}
.chip{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:34px;
  padding:0 14px;
  border-radius:var(--r-pill);
  font-size:14px;
  color:var(--text-2);
  white-space:nowrap;
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.chip:hover{background:var(--surface-2);color:var(--text);}
.chip.is-active{
  background:rgba(33,230,168,.14);
  color:var(--primary);
  box-shadow:inset 0 0 0 1px rgba(33,230,168,.45);
  font-weight:600;
}
.chip.is-active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:3px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
}
.header-right{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:16px;
  flex-shrink:0;
}
.header-divider{
  width:1px;
  height:24px;
  background:var(--line);
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--r-sm);
  font-size:15px;
  font-weight:700;
  letter-spacing:.01em;
  transition:transform var(--ease),background var(--ease),box-shadow var(--ease),border-color var(--ease),color var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:var(--primary);
  color:var(--primary-ink);
  box-shadow:var(--shadow-btn);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(0) scale(.99);}
.btn-ghost{
  background:transparent;
  color:var(--text);
  box-shadow:inset 0 0 0 1px var(--line-strong);
}
.btn-ghost:hover{background:var(--surface-2);box-shadow:inset 0 0 0 1px var(--primary);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-wide{width:100%;}
.nav-toggle{
  display:none;
  width:40px;
  height:40px;
  border-radius:var(--r-sm);
  border:1px solid var(--line);
  align-items:center;
  justify-content:center;
  background:var(--surface);
}
.nav-toggle span{
  display:block;
  width:18px;
  height:2px;
  background:var(--text);
  position:relative;
  transition:background var(--ease);
}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;
  height:2px;
  background:var(--text);
  transition:transform var(--ease);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* 移动端抽屉 */
.nav-drawer{
  position:fixed;
  left:0;right:0;top:64px;bottom:0;
  background:var(--bg-1);
  z-index:45;
  padding:24px;
  display:flex;
  flex-direction:column;
  gap:8px;
  opacity:0;
  visibility:hidden;
  transform:translateY(-10px);
  transition:opacity var(--ease),transform var(--ease),visibility var(--ease);
  overflow-y:auto;
}
.nav-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.nav-drawer .chip{
  height:48px;
  border-radius:var(--r-sm);
  font-size:17px;
  justify-content:flex-start;
  padding:0 16px;
  background:var(--surface);
  border:1px solid var(--line);
}
.nav-drawer .chip.is-active{
  background:rgba(33,230,168,.14);
  box-shadow:inset 0 0 0 1px rgba(33,230,168,.45);
}
.nav-drawer .chip.is-active::after{display:none;}
.drawer-foot{
  margin-top:auto;
  padding-top:24px;
  border-top:1px solid var(--line);
}

/* ---------- 页头 ---------- */
.page-head{
  position:relative;
  padding:64px 0 56px;
  border-bottom:1px solid var(--line);
  background-image:
    linear-gradient(90deg, rgba(6,10,17,.94) 0%, rgba(6,10,17,.78) 55%, rgba(6,10,17,.58) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  color:var(--muted);
  letter-spacing:.02em;
  margin-bottom:22px;
  flex-wrap:wrap;
}
.breadcrumb a{color:var(--muted);transition:color var(--ease);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:rgba(143,163,182,.55);}
.breadcrumb .current{color:var(--text-2);}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 16px 5px 12px;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--primary);
  background:rgba(33,230,168,.12);
  border:1px solid rgba(33,230,168,.32);
  clip-path:polygon(0 0,100% 0,calc(100% - 8px) 100%,0 100%);
  margin-bottom:20px;
}
.eyebrow::before{
  content:"";
  width:16px;
  height:2px;
  background:var(--primary);
  display:block;
}
.page-head h1{
  font-size:clamp(30px,4.2vw,50px);
  line-height:1.14;
  font-weight:800;
  letter-spacing:-.02em;
  max-width:16em;
}
.page-lead{
  margin-top:20px;
  font-size:16px;
  line-height:1.85;
  color:var(--text-2);
  max-width:44em;
}
.sub-chips{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:28px;
}
.sub-chip{
  display:inline-flex;
  align-items:center;
  height:36px;
  padding:0 16px;
  border-radius:var(--r-pill);
  font-size:13px;
  color:var(--text-2);
  background:var(--surface);
  border:1px solid var(--line);
  transition:background var(--ease),border-color var(--ease),color var(--ease);
}
.sub-chip:hover{background:var(--surface-2);border-color:var(--line-strong);color:var(--text);}
.sub-chip.is-active{
  color:var(--primary);
  background:rgba(33,230,168,.14);
  border-color:rgba(33,230,168,.45);
  font-weight:600;
}

/* ---------- 板块通用 ---------- */
.section{padding:88px 0;}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:36px;
  flex-wrap:wrap;
}
.section-title{
  display:flex;
  gap:14px;
  align-items:flex-start;
}
.section-title::before{
  content:"";
  width:4px;
  height:26px;
  border-radius:2px;
  background:var(--primary);
  margin-top:6px;
  flex-shrink:0;
}
.section-head h2{
  font-size:clamp(23px,2.5vw,32px);
  line-height:1.28;
  font-weight:700;
  letter-spacing:-.01em;
}
.section-sub{
  margin-top:8px;
  font-size:14px;
  color:var(--muted);
  max-width:46em;
}
.section-action{
  font-size:14px;
  color:var(--info);
  font-weight:600;
  display:inline-flex;
  align-items:center;
  gap:6px;
  transition:color var(--ease);
}
.section-action:hover{color:var(--primary);}
.section-action .arrow{transition:transform var(--ease);}
.section-action:hover .arrow{transform:translateX(4px);}

/* ---------- 时间轴 ---------- */
.timeline{
  position:relative;
  margin-top:12px;
  max-width:900px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:31px;
  top:20px;
  bottom:20px;
  width:2px;
  background:linear-gradient(180deg,var(--primary),rgba(33,230,168,.10));
}
.tl-item{
  display:grid;
  grid-template-columns:64px 1fr;
  gap:24px;
  align-items:start;
  margin-bottom:24px;
  position:relative;
}
.tl-item:last-child{margin-bottom:0;}
.tl-num{
  width:64px;
  height:64px;
  border-radius:50%;
  display:grid;
  place-items:center;
  background:var(--bg-1);
  border:1px solid rgba(33,230,168,.45);
  color:var(--primary);
  font-size:20px;
  font-weight:800;
  font-variant-numeric:tabular-nums;
  position:relative;
  z-index:1;
}
.tl-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:22px 26px;
  backdrop-filter:blur(12px) saturate(120%);
  -webkit-backdrop-filter:blur(12px) saturate(120%);
  box-shadow:var(--shadow-card);
  transition:transform var(--ease),border-color var(--ease),background var(--ease);
}
.tl-card:hover{
  transform:translateY(-4px);
  border-color:var(--line-strong);
  background:var(--surface-2);
}
.tl-card h3{
  font-size:20px;
  font-weight:600;
  line-height:1.4;
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
}
.tl-card h3 .tag{
  font-size:11px;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--primary);
  background:rgba(33,230,168,.12);
  border:1px solid rgba(33,230,168,.28);
  padding:2px 9px;
  border-radius:var(--r-pill);
}
.tl-card p{
  margin-top:10px;
  font-size:15px;
  line-height:1.8;
  color:var(--text-2);
}
.tl-hint{
  margin-top:14px;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--muted);
  display:flex;
  gap:8px;
  align-items:flex-start;
}
.tl-hint::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--accent);
  margin-top:9px;
  flex-shrink:0;
}

/* ---------- 准备清单 ---------- */
.prep-grid{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:40px;
  align-items:center;
}
.prep-media{
  position:relative;
  border-radius:var(--r-md);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.prep-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  aspect-ratio:4/3;
  transition:transform 200ms ease-out;
}
.prep-media:hover img{transform:scale(1.03);}
.prep-media figcaption{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:28px 18px 14px;
  font-size:12px;
  color:var(--text-2);
  background:linear-gradient(180deg,rgba(6,10,17,0),rgba(6,10,17,.88));
}
.prep-list{
  display:flex;
  flex-direction:column;
  gap:6px;
}
.prep-item{
  display:flex;
  gap:16px;
  padding:18px 0;
  border-bottom:1px solid var(--line);
}
.prep-item:last-child{border-bottom:0;}
.prep-idx{
  font-size:13px;
  font-weight:800;
  color:var(--primary);
  font-variant-numeric:tabular-nums;
  padding-top:3px;
  min-width:28px;
  letter-spacing:.04em;
}
.prep-item h3{font-size:16px;font-weight:600;line-height:1.5;}
.prep-item p{margin-top:5px;font-size:14px;line-height:1.75;color:var(--muted);}

/* ---------- 做与不做 ---------- */
.compare-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
}
.compare-card{
  padding:28px;
  border-radius:var(--r-md);
  background:var(--surface);
  border:1px solid var(--line);
  border-left:4px solid var(--primary);
  backdrop-filter:blur(12px) saturate(120%);
  -webkit-backdrop-filter:blur(12px) saturate(120%);
}
.compare-card.dont{border-left-color:var(--danger);}
.compare-card h3{
  font-size:18px;
  font-weight:700;
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:8px;
}
.compare-card h3 .dot{
  width:9px;height:9px;border-radius:2px;background:var(--primary);
}
.compare-card.dont h3 .dot{background:var(--danger);}
.compare-card > p{
  font-size:13px;
  color:var(--muted);
  margin-bottom:14px;
}
.compare-card li{
  display:flex;
  gap:12px;
  padding:13px 0;
  font-size:15px;
  line-height:1.7;
  color:var(--text-2);
  border-bottom:1px dashed var(--line);
}
.compare-card li:last-child{border-bottom:0;padding-bottom:0;}
.compare-card li .mark{
  font-weight:800;
  color:var(--primary);
  flex-shrink:0;
  width:18px;
}
.compare-card.dont li .mark{color:var(--danger);}

/* ---------- FAQ ---------- */
.faq-layout{
  display:grid;
  grid-template-columns:4fr 8fr;
  gap:48px;
  align-items:start;
}
.faq-side h2{
  font-size:clamp(23px,2.5vw,32px);
  line-height:1.28;
  font-weight:700;
}
.faq-side p{
  margin-top:14px;
  font-size:14px;
  line-height:1.8;
  color:var(--muted);
}
.faq-side .side-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:20px;
  font-size:14px;
  font-weight:600;
  color:var(--info);
  transition:color var(--ease);
}
.faq-side .side-link:hover{color:var(--primary);}
.faq-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  backdrop-filter:blur(12px) saturate(120%);
  -webkit-backdrop-filter:blur(12px) saturate(120%);
}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;
  min-height:56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:14px 22px;
  text-align:left;
  font-size:16px;
  font-weight:600;
  line-height:1.6;
  color:var(--text);
  transition:color var(--ease),background var(--ease);
}
.faq-q:hover{background:var(--surface-2);}
.faq-icon{
  flex-shrink:0;
  width:20px;
  height:20px;
  position:relative;
  transition:transform var(--ease);
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--primary);
  border-radius:1px;
}
.faq-icon::before{left:0;top:9px;width:20px;height:2px;}
.faq-icon::after{left:9px;top:0;width:2px;height:20px;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-item.is-open{border-left:2px solid rgba(33,230,168,.35);}
.faq-item.is-open .faq-q{color:var(--primary);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 280ms ease-out;
}
.faq-a p{
  padding:0 22px 20px;
  font-size:15px;
  line-height:1.8;
  color:var(--text-2);
}

/* ---------- CTA 条 ---------- */
.cta-wrap{padding:0 0 88px;}
.cta-bar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  padding:30px 36px;
  border-radius:var(--r-lg);
  border:1px solid rgba(33,230,168,.35);
  background:linear-gradient(90deg,rgba(33,230,168,.10) 0%,rgba(255,255,255,.03) 70%);
  backdrop-filter:blur(12px) saturate(120%);
  -webkit-backdrop-filter:blur(12px) saturate(120%);
  flex-wrap:wrap;
}
.cta-bar h2{
  font-size:clamp(20px,2.2vw,26px);
  font-weight:700;
  line-height:1.35;
}
.cta-bar p{
  margin-top:6px;
  font-size:14px;
  color:var(--muted);
}
.cta-bar .btn{flex-shrink:0;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--bg-1);
  border-top:1px solid var(--line);
  padding:64px 0 24px;
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.4fr;
  gap:40px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-desc{
  font-size:14px;
  line-height:1.8;
  color:var(--text-2);
  max-width:22em;
}
.footer-compliance{
  margin-top:14px;
  font-size:12px;
  line-height:1.75;
  color:var(--muted);
  max-width:26em;
}
.footer-col h5{
  font-size:13px;
  letter-spacing:.08em;
  color:var(--text);
  font-weight:700;
  margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{
  font-size:14px;
  color:var(--text-2);
  transition:color var(--ease);
}
.footer-col a:hover{color:var(--primary);}
.footer-col p{
  font-size:13px;
  line-height:1.8;
  color:var(--muted);
}
.footer-bottom{
  margin-top:48px;
  padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:12px;
  color:var(--muted);
}
.to-top{
  color:var(--text-2);
  transition:color var(--ease);
}
.to-top:hover{color:var(--primary);}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-chips{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-divider{display:none;}
  .section{padding:64px 0;}
  .prep-grid{grid-template-columns:1fr;gap:28px;}
  .faq-layout{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1 / -1;}
  .cta-wrap{padding-bottom:64px;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .page-head{padding:44px 0 40px;}
  .compare-grid{grid-template-columns:1fr;}
  .cta-bar{padding:24px 22px;flex-direction:column;align-items:flex-start;}
  .cta-bar .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:8px;}
  .footer-col{border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:8px;}
  .footer-col:last-of-type{border-bottom:0;}
  .footer-col ul{flex-direction:column;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .header-inner{height:56px;gap:12px;}
  .brand-main{font-size:17px;}
  .brand-sub{font-size:10px;}
  .brand-mark{width:30px;height:30px;font-size:12px;}
  .nav-drawer{top:56px;}
  .header-right .btn-sm{height:34px;padding:0 14px;font-size:13px;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:26px;}
  .tl-item{grid-template-columns:48px 1fr;gap:14px;}
  .tl-num{width:48px;height:48px;font-size:16px;}
  .timeline::before{left:23px;}
  .tl-card{padding:18px;}
  .tl-card h3{font-size:17px;}
  .tl-card p{font-size:14px;}
  .compare-card{padding:20px;}
  .faq-q{padding:14px 16px;font-size:15px;}
  .faq-a p{padding:0 16px 18px;font-size:14px;}
  .page-head h1{font-size:26px;}
  .page-lead{font-size:15px;}
  .cta-wrap{padding-bottom:48px;}
  .site-footer{padding-top:48px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --bg-0:#060A11;
  --bg-1:#0B1220;
  --bg-2:#111A2A;
  --surface:rgba(255,255,255,.045);
  --surface-2:rgba(255,255,255,.075);
  --line:rgba(140,190,230,.16);
  --line-strong:rgba(140,190,230,.30);
  --primary:#21E6A8;
  --primary-ink:#04120D;
  --accent:#FF6A2B;
  --info:#5AA9FF;
  --text:#E8F1F8;
  --text-2:#B7C7D6;
  --muted:#8FA3B6;
  --danger:#FF5470;
  --success:#21E6A8;
  --warning:#FFC24B;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:10px;
  --sh-card:0 1px 0 rgba(255,255,255,.06) inset, 0 24px 48px -28px rgba(0,0,0,.9);
  --sh-cta:0 0 0 1px rgba(33,230,168,.45), 0 10px 30px -10px rgba(33,230,168,.55);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background-color:var(--bg-0);
  background-image:
    linear-gradient(rgba(140,190,230,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(140,190,230,.04) 1px, transparent 1px);
  background-size:120px 120px;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,p,ul,ol,dl,dd,figure{margin:0}
ul,ol{padding:0;list-style:none}
a{color:var(--info);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--primary)}
img{max-width:100%;display:block;border-radius:12px}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,18,32,.82);
  -webkit-backdrop-filter:blur(12px) saturate(120%);
  backdrop-filter:blur(12px) saturate(120%);
  border-top:2px solid var(--primary);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto}
.brand:hover{color:inherit}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:34px;background:var(--primary);color:var(--primary-ink);
  font-size:15px;font-weight:800;letter-spacing:.02em;
  clip-path:polygon(0 0,100% 0,calc(100% - 8px) 100%,0 100%);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-main{font-size:19px;font-weight:800;color:var(--text);letter-spacing:-.01em}
.brand-sub{font-size:11px;letter-spacing:.08em;color:var(--muted);margin-top:3px}
.nav-chips{
  display:flex;align-items:center;gap:6px;padding:4px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);border-radius:999px;margin-left:8px;
}
.chip{
  position:relative;display:inline-flex;align-items:center;height:34px;padding:0 14px;
  border-radius:999px;font-size:14px;color:var(--text-2);text-decoration:none;
  white-space:nowrap;transition:background .18s ease,color .18s ease;
}
.chip:hover{background:var(--surface-2);color:var(--text)}
.chip.is-active{
  background:rgba(33,230,168,.14);color:var(--primary);
  box-shadow:inset 0 0 0 1px rgba(33,230,168,.45);
}
.chip.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--primary);border-radius:2px;
}
.header-right{
  margin-left:auto;display:flex;align-items:center;gap:14px;
  padding-left:20px;border-left:1px solid var(--line);
}
.nav-toggle{
  display:none;align-items:center;justify-content:center;gap:8px;
  height:36px;padding:0 14px;border-radius:var(--r-sm);
  background:var(--surface);border:1px solid var(--line-strong);
  color:var(--text);font-size:14px;cursor:pointer;transition:background .18s,border-color .18s;
}
.nav-toggle:hover{background:var(--surface-2);border-color:var(--primary)}

/* 抽屉 */
.drawer{
  position:fixed;inset:0;z-index:90;background:var(--bg-1);
  display:flex;flex-direction:column;padding:20px 20px 28px;
  transform:translateY(-100%);opacity:0;pointer-events:none;
  transition:transform .26s ease,opacity .26s ease;
}
.drawer.is-open{transform:translateY(0);opacity:1;pointer-events:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-close{
  width:38px;height:38px;border-radius:var(--r-sm);background:var(--surface);
  border:1px solid var(--line-strong);color:var(--text);font-size:20px;line-height:1;cursor:pointer;
}
.drawer-nav{display:flex;flex-direction:column;margin-top:16px}
.drawer-nav a{
  display:flex;align-items:center;height:48px;font-size:17px;color:var(--text-2);
  border-bottom:1px solid var(--line);text-decoration:none;
}
.drawer-nav a.is-active{color:var(--primary)}
.drawer-cta{margin-top:auto;width:100%}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-sm);
  font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;
  text-decoration:none;transition:transform .18s ease-out,background .18s,box-shadow .18s,color .18s,filter .18s;
}
.btn-primary{background:var(--primary);color:var(--primary-ink);box-shadow:var(--sh-cta)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);color:var(--primary-ink)}
.btn-primary:active{transform:translateY(0) scale(.99)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text)}
.btn-ghost:hover{background:var(--surface-2);border-color:var(--primary);color:var(--primary)}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.btn-lg{height:50px;padding:0 26px;font-size:16px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary)}
.link-arrow span{transition:transform .18s ease}
.link-arrow:hover span{transform:translateX(4px)}

/* ============ 页头 ============ */
.page-head{
  position:relative;padding:44px 0 52px;
  background-image:
    linear-gradient(90deg, rgba(6,10,17,.95) 0%, rgba(6,10,17,.80) 55%, rgba(6,10,17,.62) 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:12px;color:var(--muted);min-height:22px}
.breadcrumb a{color:var(--muted);text-decoration:none}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:rgba(140,190,230,.4)}
.breadcrumb .current{color:var(--text-2)}
.page-head h1{
  font-size:clamp(30px,4vw,46px);line-height:1.14;letter-spacing:-.02em;font-weight:800;
  margin:18px 0 0;max-width:20ch;
}
.page-head h1 em{font-style:normal;color:var(--primary)}
.page-lead{margin-top:16px;max-width:760px;color:var(--text-2);font-size:16px;line-height:1.85}
.sub-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.sub-chip{
  display:inline-flex;align-items:center;height:32px;padding:0 16px;
  font-size:13px;color:var(--text-2);text-decoration:none;
  background:var(--surface);border:1px solid var(--line);
  clip-path:polygon(0 0,100% 0,calc(100% - 8px) 100%,0 100%);
  transition:background .18s,color .18s,border-color .18s;
}
.sub-chip:hover{background:var(--surface-2);color:var(--primary);border-color:rgba(33,230,168,.4)}
.head-rule{margin-top:34px;height:1px;background:var(--line)}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section.tight{padding:64px 0}
.section.alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;color:var(--primary);margin-bottom:12px;
}
.eyebrow::before{content:"";width:20px;height:2px;background:var(--primary);border-radius:2px}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.sec-head h2{font-size:clamp(24px,2.6vw,34px);line-height:1.25;font-weight:700;letter-spacing:-.01em;max-width:22ch}
.sec-desc{color:var(--text-2);font-size:15px;margin-top:10px;max-width:60ch}

/* ============ 主分栏：分组 + FAQ ============ */
.layout{
  display:grid;
  grid-template-columns:minmax(0,3fr) minmax(0,9fr);
  gap:32px;align-items:start;
}
.group-nav{
  position:sticky;top:88px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:18px 14px;
  -webkit-backdrop-filter:blur(12px) saturate(120%);
  backdrop-filter:blur(12px) saturate(120%);
  box-shadow:var(--sh-card);
}
.group-nav h3{font-size:13px;letter-spacing:.08em;color:var(--muted);font-weight:700;margin:0 0 12px 12px}
.group-nav ul{display:grid;gap:4px}
.group-nav a{
  display:flex;align-items:center;gap:10px;
  padding:11px 12px;border-left:2px solid transparent;
  color:var(--text-2);font-size:14px;text-decoration:none;border-radius:0 8px 8px 0;
  transition:background .18s,color .18s,border-color .18s;
}
.group-nav a .idx{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}
.group-nav a:hover{background:var(--surface-2);color:var(--text)}
.group-nav a.is-active{
  background:rgba(33,230,168,.10);border-left-color:var(--primary);color:var(--primary);
}
.group-nav a.is-active .idx{color:var(--primary)}

.faq-group{scroll-margin-top:92px}
.faq-group + .faq-group{margin-top:40px}
.group-title{display:flex;align-items:center;gap:12px;font-size:20px;font-weight:600;margin-bottom:16px}
.group-title::before{content:"";width:4px;height:22px;background:var(--primary);border-radius:2px}
.faq-list{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;
  -webkit-backdrop-filter:blur(12px) saturate(120%);
  backdrop-filter:blur(12px) saturate(120%);
}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-item.is-open{box-shadow:inset 0 0 0 1px rgba(33,230,168,.35)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 20px;background:none;border:0;
  color:var(--text);font-size:17px;font-weight:600;text-align:left;line-height:1.5;
  cursor:pointer;transition:background .18s,color .18s;
}
.faq-q:hover{background:var(--surface-2)}
.faq-q[aria-expanded="true"]{color:var(--primary)}
.faq-icon{
  flex:0 0 auto;width:20px;height:20px;display:inline-flex;align-items:center;justify-content:center;
  color:var(--primary);font-size:20px;line-height:1;transition:transform .22s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--text-2);margin:0}

/* ============ 速查卡 ============ */
.phrase-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.phrase-card{
  padding:22px;border-radius:var(--r-md);
  background:var(--surface);border:1px solid var(--line);
  transition:transform .18s ease-out,border-color .18s,background .18s;
}
.phrase-card:hover{transform:translateY(-4px);border-color:var(--line-strong);background:var(--surface-2)}
.phrase-tag{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;
  font-size:12px;font-weight:700;color:var(--primary-ink);background:var(--primary);
  clip-path:polygon(0 0,100% 0,calc(100% - 8px) 100%,0 100%);
}
.phrase-card h3{font-size:18px;font-weight:600;margin:14px 0 8px}
.phrase-card p{font-size:14px;line-height:1.75;color:var(--text-2)}
.phrase-action{display:flex;gap:8px;align-items:flex-start;margin-top:14px;padding-top:14px;border-top:1px solid var(--line);font-size:14px;color:var(--text)}
.phrase-action b{color:var(--warning);font-weight:600;flex:0 0 auto}

/* ============ 图文核对 ============ */
.check-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:40px;align-items:center}
.check-media{border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-card)}
.check-media img{width:100%;height:100%;object-fit:cover;border-radius:0;aspect-ratio:4/3}
.check-list{display:grid;gap:18px;margin-top:24px}
.check-item{display:flex;gap:16px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.check-item:last-child{border-bottom:0;padding-bottom:0}
.check-num{
  flex:0 0 auto;width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(33,230,168,.5);border-radius:10px;
  color:var(--primary);font-size:14px;font-weight:800;font-variant-numeric:tabular-nums;
}
.check-item h3{font-size:16px;font-weight:600;margin-bottom:4px}
.check-item p{font-size:14px;color:var(--text-2);line-height:1.75}

/* ============ 联系卡 ============ */
.contact-card{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  padding:30px 32px;border-radius:var(--r-lg);
  background:var(--surface);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(12px) saturate(120%);
  backdrop-filter:blur(12px) saturate(120%);
  box-shadow:var(--sh-card);
}
.contact-card h3{font-size:20px;font-weight:600;margin-bottom:8px}
.contact-card p{font-size:14px;color:var(--text-2);max-width:62ch}

/* ============ 相关分类 ============ */
.related{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:32px}
.related .label{font-size:13px;color:var(--muted);letter-spacing:.06em}
.related .sub-chip.is-current{
  background:rgba(33,230,168,.12);color:var(--primary);border-color:rgba(33,230,168,.45);
}
.back-link{display:inline-flex;align-items:center;gap:8px;margin-top:24px;font-size:14px;color:var(--text-2)}
.back-link:hover{color:var(--primary)}

/* ============ CTA ============ */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  padding:32px 36px;border-radius:var(--r-lg);
  background:linear-gradient(90deg, rgba(33,230,168,.08), rgba(255,255,255,.03));
  border:1px solid rgba(33,230,168,.55);
  -webkit-backdrop-filter:blur(12px) saturate(120%);
  backdrop-filter:blur(12px) saturate(120%);
}
.cta-band h2{font-size:clamp(20px,2.2vw,26px);font-weight:700;line-height:1.3}
.cta-band p{font-size:14px;color:var(--text-2);margin-top:8px;max-width:52ch}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto}

/* ============ 页脚 ============ */
.site-footer{margin-top:64px;background:var(--bg-1);border-top:1px solid var(--line)}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:32px;
  padding:64px 0 40px;
}
.footer-col h5{font-size:13px;letter-spacing:.08em;font-weight:700;color:var(--text);margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--text-2);text-decoration:none}
.footer-col a:hover{color:var(--primary)}
.footer-desc{font-size:14px;line-height:1.7;color:var(--text-2);margin:16px 0 12px;max-width:30ch}
.footer-compliance{font-size:12px;line-height:1.7;color:var(--muted);max-width:38ch}
.footer-col p{font-size:14px;line-height:1.75;color:var(--text-2)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  border-top:1px solid var(--line);padding:20px 0 28px;
  font-size:12px;color:var(--muted);
}
.to-top{font-size:12px;color:var(--text-2);text-decoration:none}
.to-top:hover{color:var(--primary)}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 22px}
  .nav-chips{gap:4px}
  .chip{padding:0 12px;font-size:13px}
}
@media (max-width:1023px){
  .container{padding:0 20px}
  .nav-chips{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{height:60px;gap:14px}
  .header-right{padding-left:0;border-left:0}
  .section{padding:64px 0}
  .section.tight{padding:52px 0}
  .layout{grid-template-columns:1fr;gap:24px}
  .group-nav{position:static}
  .group-nav ul{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
  .check-grid{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px 24px}
  .cta-band{flex-direction:column;align-items:flex-start}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .header-inner{height:56px}
  .brand-main{font-size:17px}
  .brand-sub{font-size:10px}
  .brand-mark{width:34px;height:30px;font-size:14px}
  .header-right .btn{display:none}
  .page-head{padding:32px 0 40px}
  .page-lead{font-size:15px}
  .section{padding:48px 0}
  .section.tight{padding:44px 0}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:24px}
  .faq-q{font-size:16px;padding:14px 16px}
  .faq-a p{padding:0 16px 18px;font-size:14px}
  .phrase-grid{grid-template-columns:1fr}
  .contact-card{flex-direction:column;align-items:flex-start;padding:24px}
  .contact-card .btn{width:100%}
  .cta-band{padding:24px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto;width:100%}
  .group-nav ul{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:48px 0 32px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (max-width:480px){
  .page-head h1{font-size:26px}
  .sec-head h2{font-size:22px}
  .sub-chip{font-size:12px;height:30px;padding:0 12px}
  .faq-q{font-size:15px}
}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  .phrase-card:hover,.btn-primary:hover{transform:none}
  html{scroll-behavior:auto}
}