/* roulang page: index */
:root{
  --ink-900:#060A12;
  --ink-800:#0B1220;
  --ink-700:#121C2B;
  --brand:#24E0B0;
  --brand-2:#FF6B35;
  --brand-3:#3D8BFF;
  --text:#E9F2F8;
  --muted:#93A7BC;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(36,224,176,.5);
  --white:#FFFFFF;
  --nav-line:#E6EBF2;
  --nav-text:#0B1220;
  --nav-soft:#F3F6FA;
  --r-card:18px;
  --r-tag:8px;
  --r-btn:12px;
  --shadow-card:0 10px 30px rgba(0,0,0,.35);
  --shadow-glow:0 0 0 1px rgba(36,224,176,.35),0 10px 28px rgba(36,224,176,.22);
  --shadow-nav:0 2px 10px rgba(11,18,32,.06);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}
::selection{background:rgba(36,224,176,.28);color:#04120E;}

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

/* ============ HEADER ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--white);
  border-bottom:1px solid var(--nav-line);
  box-shadow:var(--shadow-nav);
  transition:height .28s var(--ease);
}
.nav-wrap{
  display:flex;align-items:center;gap:28px;
  height:68px;
  transition:height .28s var(--ease);
}
.site-header.is-scrolled .nav-wrap{height:56px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  display:grid;place-items:center;
  background:#04120E;
  box-shadow:0 0 0 1px rgba(36,224,176,.75),0 0 14px rgba(36,224,176,.35);
  color:var(--brand);
}
.brand-mark svg{width:19px;height:19px;}
.brand-name{
  font-size:18px;font-weight:700;color:var(--nav-text);
  letter-spacing:-.2px;white-space:nowrap;
}
.nav-menu{display:flex;align-items:center;gap:28px;margin-left:12px;}
.nav-menu a{
  position:relative;
  font-size:15px;color:#33465C;padding:6px 0;
  transition:color .2s var(--ease);
  white-space:nowrap;
}
.nav-menu a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .24s var(--ease);
}
.nav-menu a:hover{color:var(--nav-text);}
.nav-menu a:hover::after{transform:scaleX(1);}
.nav-menu a.active{color:var(--nav-text);font-weight:600;}
.nav-menu a.active::after{transform:scaleX(1);}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:14px;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  width:220px;height:40px;padding:0 16px;
  background:var(--nav-soft);
  border:1px solid transparent;border-radius:999px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.nav-search i{color:#8A9BB0;font-size:13px;}
.nav-search input{
  width:100%;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--nav-text);
}
.nav-search input::placeholder{color:#8A9BB0;}
.nav-search:focus-within{
  background:var(--white);
  border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(36,224,176,.16);
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.2px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
  border:1px solid transparent;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#04120E;}
.btn-primary:hover{
  transform:translateY(-1px);
  background:#3AE9BC;
  box-shadow:var(--shadow-glow);
}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{
  background:rgba(255,255,255,.03);color:var(--brand);
  border-color:var(--line);
}
.btn-ghost:hover{border-color:var(--line-strong);background:rgba(36,224,176,.06);}
.btn-ghost:active{transform:translateY(0);}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-weight:600;font-size:15px;
  padding:4px 0;transition:color .2s var(--ease);
}
.btn-text i{transition:transform .22s var(--ease);font-size:13px;}
.btn-text:hover i{transform:translateX(4px);}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none;}

.nav-cta{height:40px;padding:0 20px;font-size:14px;border-radius:999px;}
.burger{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--nav-line);background:var(--white);
  color:var(--nav-text);align-items:center;justify-content:center;font-size:17px;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.burger:hover{border-color:var(--brand);background:#F7FFFC;}

/* drawer */
.drawer{
  position:fixed;inset:0;z-index:120;
  background:rgba(6,10,18,.62);
  backdrop-filter:blur(4px);
  opacity:0;visibility:hidden;transition:opacity .26s var(--ease),visibility .26s var(--ease);
}
.drawer.is-open{opacity:1;visibility:visible;}
.drawer-panel{
  position:absolute;top:0;right:0;height:100%;width:min(86vw,340px);
  background:var(--ink-800);
  border-left:1px solid var(--line);
  box-shadow:-20px 0 50px rgba(0,0,0,.5);
  padding:22px 22px 32px;
  transform:translateX(100%);
  transition:transform .3s var(--ease);
  display:flex;flex-direction:column;gap:20px;
  overflow-y:auto;
}
.drawer.is-open .drawer-panel{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);display:grid;place-items:center;color:var(--text);}
.drawer-close:hover{border-color:var(--line-strong);color:var(--brand);}
.drawer-links{display:flex;flex-direction:column;gap:4px;}
.drawer-links a{
  padding:13px 14px;border-radius:12px;font-size:15px;color:var(--text);
  border:1px solid transparent;
  transition:background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.drawer-links a:hover,.drawer-links a.active{
  background:rgba(36,224,176,.08);border-color:rgba(36,224,176,.28);color:var(--brand);
}
.drawer-search{
  display:flex;align-items:center;gap:9px;height:46px;padding:0 16px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:999px;
}
.drawer-search i{color:var(--muted);font-size:13px;}
.drawer-search input{flex:1;background:transparent;border:0;outline:none;color:var(--text);font-size:14px;}
.drawer-search input::placeholder{color:var(--muted);}
.drawer .btn{width:100%;}

/* ============ HERO ============ */
.hero{
  position:relative;overflow:hidden;
  padding:76px 0 88px;
  background:
    radial-gradient(680px 460px at 82% 6%, rgba(36,224,176,.08), transparent 68%),
    var(--ink-900);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center right;
  opacity:.12;
  mask-image:linear-gradient(90deg,transparent 30%,#000 100%);
  -webkit-mask-image:linear-gradient(90deg,transparent 30%,#000 100%);
}
.hero .container{position:relative;z-index:2;}
.hero-grid{
  display:grid;grid-template-columns:320px minmax(0,1fr);
  gap:56px;align-items:center;
}
.hero-card{
  position:relative;width:100%;aspect-ratio:9/16;
  border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  background:var(--ink-800);
}
.hero-card img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .5s var(--ease);
}
.hero-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,18,.05) 0%,rgba(6,10,18,.55) 62%,rgba(6,10,18,.92) 100%);
}
.hero-card:hover img{transform:scale(1.04);}
.hero-play{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:62px;height:62px;border-radius:50%;
  display:grid;place-items:center;z-index:3;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.34);
  backdrop-filter:blur(14px);
  color:#fff;font-size:19px;
  box-shadow:0 0 0 1px rgba(36,224,176,.28),0 10px 26px rgba(0,0,0,.4);
}
.hero-play::before{
  content:"";position:absolute;inset:-12px;border-radius:50%;
  border:1px solid rgba(36,224,176,.22);
}
.hero-badge{
  position:absolute;top:14px;left:14px;z-index:3;
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 10px;border-radius:var(--r-tag);
  font-size:12px;font-weight:700;color:#2A0E04;
  background:var(--brand-2);
}
.hero-meta{
  position:absolute;left:14px;right:14px;bottom:14px;z-index:3;
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:12px;color:#DCEAF4;font-variant-numeric:tabular-nums;
}
.hero-meta .dur{
  display:inline-flex;align-items:center;gap:5px;
  padding:3px 9px;border-radius:6px;background:rgba(6,10,18,.6);
  border:1px solid var(--line);
}
.hero-progress{
  position:absolute;left:14px;right:14px;bottom:0;z-index:3;
  height:3px;border-radius:3px;background:rgba(255,255,255,.18);overflow:hidden;
}
.hero-progress span{display:block;height:100%;width:38%;background:var(--brand);border-radius:3px;}

.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;border-radius:999px;
  background:rgba(36,224,176,.08);
  border:1px solid rgba(36,224,176,.28);
  color:var(--brand);font-size:13px;font-weight:600;
  margin-bottom:20px;
}
.hero h1{
  font-size:44px;line-height:1.18;font-weight:800;letter-spacing:-.5px;
  margin-bottom:18px;color:#F4FAFF;
}
.hero h1 em{font-style:normal;color:var(--brand);}
.hero-sub{
  font-size:17px;color:var(--muted);line-height:1.9;max-width:620px;margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;}
.stat-pill{
  display:flex;align-items:baseline;gap:8px;
  padding:11px 18px;border-radius:999px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  transition:border-color .22s var(--ease),background .22s var(--ease);
}
.stat-pill:hover{border-color:var(--line-strong);background:rgba(36,224,176,.06);}
.stat-pill b{
  font-size:19px;font-weight:800;color:var(--brand);
  font-variant-numeric:tabular-nums;letter-spacing:-.3px;
}
.stat-pill span{font-size:13px;color:var(--muted);}

/* ============ SECTION COMMON ============ */
.section{padding:96px 0;}
.section-alt{background:var(--ink-800);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:32px;
}
.section-title{
  position:relative;padding-left:16px;
  font-size:32px;line-height:1.3;font-weight:800;letter-spacing:-.4px;color:#F4FAFF;
}
.section-title::before{
  content:"";position:absolute;left:0;top:8px;
  width:4px;height:22px;border-radius:3px;background:var(--brand);
  box-shadow:0 0 14px rgba(36,224,176,.6);
}
.section-desc{
  margin-top:10px;padding-left:16px;font-size:15px;color:var(--muted);max-width:720px;
}

/* ============ RAIL / 片段卡 ============ */
.rail-outer{position:relative;}
.rail-outer::before,.rail-outer::after{
  content:"";position:absolute;top:0;bottom:16px;width:56px;z-index:4;pointer-events:none;
}
.rail-outer::before{left:-2px;background:linear-gradient(90deg,var(--ink-900),transparent);}
.rail-outer::after{right:-2px;background:linear-gradient(270deg,var(--ink-900),transparent);}
.rail{
  display:flex;gap:20px;overflow-x:auto;padding:6px 4px 18px;
  scrollbar-width:none;-ms-overflow-style:none;scroll-snap-type:x mandatory;
}
.rail::-webkit-scrollbar{display:none;}
.reel-card{
  position:relative;flex:0 0 220px;aspect-ratio:9/16;
  border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);
  background:var(--ink-800);
  box-shadow:var(--shadow-card);
  scroll-snap-align:start;
  transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.reel-card img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.reel-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,18,0) 38%,rgba(6,10,18,.86) 100%);
}
.reel-card:hover{transform:translateY(-6px);border-color:var(--line-strong);box-shadow:var(--shadow-glow);}
.reel-card:hover img{transform:scale(1.04);}
.reel-hot{
  position:absolute;top:12px;left:12px;z-index:3;
  height:24px;padding:0 9px;border-radius:6px;
  display:inline-flex;align-items:center;gap:4px;
  font-size:12px;font-weight:700;color:#2A0E04;background:var(--brand-2);
}
.reel-body{position:absolute;left:14px;right:14px;bottom:14px;z-index:3;}
.reel-body h3{
  font-size:16px;line-height:1.45;font-weight:700;color:#F2F9FE;margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.reel-tags{display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
.chip{
  display:inline-flex;align-items:center;height:22px;padding:0 9px;
  font-size:12px;border-radius:var(--r-tag);
  background:rgba(255,255,255,.06);border:1px solid var(--line);color:#C9DCEA;
}
.chip-brand{color:var(--brand);border-color:rgba(36,224,176,.4);background:rgba(36,224,176,.1);}
.chip-blue{color:#9CC4FF;border-color:rgba(61,139,255,.4);background:rgba(61,139,255,.12);}
.reel-time{
  font-size:12px;color:#C9DCEA;font-variant-numeric:tabular-nums;
  display:inline-flex;align-items:center;gap:5px;
}

/* ============ 榜单 ============ */
.rank-list{
  border-top:1px solid var(--line);
}
.rank-item{
  display:flex;align-items:center;gap:22px;
  min-height:88px;padding:18px 18px 18px 6px;
  border-bottom:1px solid var(--line);
  transition:background .24s var(--ease),padding-left .24s var(--ease);
}
.rank-item:hover{background:rgba(36,224,176,.05);padding-left:14px;}
.rank-num{
  flex:0 0 62px;
  font-size:34px;font-weight:800;letter-spacing:-1px;
  color:transparent;-webkit-text-stroke:1px rgba(36,224,176,.42);
  font-variant-numeric:tabular-nums;line-height:1;
  transition:color .24s var(--ease),-webkit-text-stroke-color .24s var(--ease);
}
.rank-item:hover .rank-num{color:rgba(36,224,176,.22);-webkit-text-stroke-color:rgba(36,224,176,.85);}
.rank-main{flex:1;min-width:0;}
.rank-main h3{
  font-size:18px;line-height:1.5;font-weight:700;color:#F2F9FE;margin-bottom:4px;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.rank-main p{
  font-size:14px;color:var(--muted);line-height:1.7;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.rank-go{
  flex:0 0 auto;width:38px;height:38px;border-radius:50%;
  display:grid;place-items:center;
  border:1px solid var(--line);color:var(--brand);font-size:13px;
  transition:transform .24s var(--ease),border-color .24s var(--ease),background .24s var(--ease);
}
.rank-item:hover .rank-go{transform:translateX(4px);border-color:var(--line-strong);background:rgba(36,224,176,.1);}

/* ============ 内容卡网格 ============ */
.filter-row{display:flex;flex-wrap:wrap;gap:10px;}
.filter-pill{
  height:34px;padding:0 16px;border-radius:999px;
  font-size:13px;color:var(--muted);
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  transition:all .2s var(--ease);
}
.filter-pill:hover{color:var(--text);border-color:rgba(255,255,255,.2);}
.filter-pill.is-active{
  color:#04120E;background:var(--brand);border-color:var(--brand);font-weight:700;
}
.card-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;
}
.post-card{
  display:flex;flex-direction:column;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.post-card:hover{
  transform:translateY(-4px);
  border-color:var(--line-strong);
  box-shadow:var(--shadow-glow);
}
.post-cover{
  position:relative;display:block;aspect-ratio:16/9;overflow:hidden;background:var(--ink-700);
}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease);}
.post-card:hover .post-cover img{transform:scale(1.04);}
.post-tag{
  position:absolute;left:12px;top:12px;
  height:24px;padding:0 10px;border-radius:6px;
  display:inline-flex;align-items:center;
  font-size:12px;font-weight:600;
  background:rgba(6,10,18,.72);border:1px solid rgba(36,224,176,.4);
  color:var(--brand);backdrop-filter:blur(8px);
}
.post-body{display:flex;flex-direction:column;flex:1;padding:20px 20px 18px;}
.post-body h3{
  font-size:18px;line-height:1.5;font-weight:700;color:#F2F9FE;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-body h3 a{transition:color .2s var(--ease);}
.post-body h3 a:hover{color:var(--brand);}
.post-body p{
  font-size:14px;line-height:1.8;color:var(--muted);margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.post-time{
  font-size:13px;color:#7F94A9;font-variant-numeric:tabular-nums;
  display:inline-flex;align-items:center;gap:6px;
}
.empty-state{
  grid-column:1/-1;
  padding:56px 28px;text-align:center;
  background:rgba(255,255,255,.03);
  border:1px dashed rgba(255,255,255,.16);
  border-radius:var(--r-card);
}
.empty-state i{font-size:28px;color:rgba(147,167,188,.7);margin-bottom:14px;display:block;}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:18px;}

/* ============ 口碑 ============ */
.reviews-rail{
  display:flex;gap:16px;overflow-x:auto;padding:6px 4px 16px;
  scrollbar-width:none;-ms-overflow-style:none;
}
.reviews-rail::-webkit-scrollbar{display:none;}
.review-pill{
  flex:0 0 300px;
  display:flex;gap:14px;align-items:flex-start;
  padding:18px 20px;border-radius:var(--r-card);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  transition:border-color .24s var(--ease),transform .24s var(--ease);
}
.review-pill:hover{border-color:var(--line-strong);transform:translateY(-3px);}
.avatar{
  flex:0 0 42px;width:42px;height:42px;border-radius:50%;
  display:grid;place-items:center;font-size:15px;font-weight:700;
  background:rgba(36,224,176,.14);color:var(--brand);
  border:1px solid rgba(36,224,176,.35);
}
.review-body{min-width:0;}
.review-top{display:flex;align-items:center;gap:10px;margin-bottom:6px;}
.review-top b{font-size:14px;color:#EAF3FA;font-weight:600;}
.stars{display:inline-flex;gap:2px;color:var(--brand);font-size:11px;}
.review-body p{font-size:13px;line-height:1.8;color:var(--muted);}
.review-sum{
  margin-top:22px;font-size:14px;color:var(--muted);
  display:flex;flex-wrap:wrap;align-items:center;gap:18px;
}
.review-sum b{color:var(--brand);font-variant-numeric:tabular-nums;font-size:17px;}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;}
.faq-item{
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:14px;
  backdrop-filter:blur(14px);
  overflow:hidden;
  transition:border-color .24s var(--ease);
}
.faq-item.is-open{border-color:rgba(36,224,176,.42);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:64px;padding:16px 22px;text-align:left;
  font-size:16px;font-weight:600;color:#EAF3FA;
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--brand);}
.faq-icon{
  flex:0 0 26px;width:26px;height:26px;border-radius:8px;
  display:grid;place-items:center;
  border:1px solid var(--line);color:var(--brand);font-size:11px;
  transition:transform .28s var(--ease),border-color .28s var(--ease),background .28s var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);border-color:var(--line-strong);background:rgba(36,224,176,.12);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .34s var(--ease);
}
.faq-a p{padding:0 22px 20px;font-size:15px;line-height:1.9;color:var(--muted);}

/* ============ CTA 转化条 ============ */
.cta-bar{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  padding:34px 38px;border-radius:22px;
  background:
    radial-gradient(420px 260px at 90% 0%, rgba(36,224,176,.15), transparent 70%),
    rgba(255,255,255,.04);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
}
.cta-bar h2{font-size:26px;line-height:1.4;font-weight:800;color:#F4FAFF;margin-bottom:8px;}
.cta-bar p{font-size:15px;color:var(--muted);}
.cta-bar .btn{height:48px;padding:0 28px;}

.sticky-cta{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  height:64px;padding:0 16px;
  align-items:center;gap:12px;
  background:rgba(11,18,32,.94);
  border-top:1px solid var(--line);
  backdrop-filter:blur(14px);
}
.sticky-cta .btn{flex:1;height:44px;}

/* ============ FOOTER ============ */
.site-footer{
  background:var(--ink-900);
  border-top:1px solid var(--line);
  padding:72px 0 28px;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:0;
}
.footer-col{padding:0 28px;}
.footer-col:first-child{padding-left:0;}
.footer-col:last-child{padding-right:0;}
.footer-col + .footer-col{border-left:1px solid var(--line);}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{width:32px;height:32px;}
.footer-brand span{font-size:17px;font-weight:700;color:#F2F9FE;}
.footer-col p{font-size:14px;line-height:1.9;color:var(--muted);max-width:320px;}
.footer-title{font-size:14px;font-weight:700;color:#EAF3FA;margin-bottom:16px;letter-spacing:.4px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{
  font-size:14px;color:var(--muted);
  transition:color .2s var(--ease),transform .2s var(--ease);
  display:inline-flex;align-items:center;gap:6px;
}
.footer-links a:hover{color:var(--brand);transform:translateX(3px);}
.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--muted);}
.footer-contact b{color:#DCEAF4;font-weight:600;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:#6F8499;
}
.footer-bottom a{color:#8FA5BA;}
.footer-bottom a:hover{color:var(--brand);}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .container{padding:0 22px;}
  .nav-menu{gap:20px;margin-left:4px;}
  .nav-menu a{font-size:14px;}
  .nav-search{width:176px;}
  .hero{padding:60px 0 70px;}
  .hero-grid{grid-template-columns:280px minmax(0,1fr);gap:38px;}
  .hero h1{font-size:36px;}
  .section{padding:72px 0;}
  .section-title{font-size:27px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px 0;}
  .footer-col{padding:0 22px;}
  .footer-col:nth-child(3){padding-left:0;border-left:0;}
  .footer-col:nth-child(2){border-left:0;}
}
@media (max-width:900px){
  .nav-menu,.nav-search{display:none;}
  .burger{display:inline-flex;}
  .nav-cta{display:none;}
  .cta-bar{flex-direction:column;align-items:flex-start;padding:28px 26px;}
  .sticky-cta{display:flex;}
  body{padding-bottom:80px;}
}
@media (max-width:768px){
  .hero-grid{grid-template-columns:1fr;gap:28px;}
  .hero-card{max-width:280px;margin:0 auto;}
  .hero h1{font-size:32px;}
  .hero-sub{font-size:16px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;}
  .section-title{font-size:25px;}
  .rank-item{gap:16px;}
  .rank-num{flex:0 0 48px;font-size:28px;}
  .rank-main h3{font-size:16px;white-space:normal;-webkit-line-clamp:2;display:-webkit-box;-webkit-box-orient:vertical;}
  .rank-main p{white-space:normal;}
}
@media (max-width:640px){
  .container{padding:0 16px;}
  .hero{padding:48px 0 56px;}
  .hero h1{font-size:30px;line-height:1.24;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{flex:1;min-width:140px;}
  .section{padding:56px 0;}
  .card-grid{grid-template-columns:1fr;}
  .reel-card{flex:0 0 176px;}
  .review-pill{flex:0 0 262px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-col{padding:0;border-left:0!important;}
  .footer-col + .footer-col{border-left:0;border-top:1px solid var(--line);padding-top:28px;}
  .stat-pill{padding:9px 14px;}
  .stat-pill b{font-size:17px;}
  .cta-bar h2{font-size:21px;}
}
@media (max-width:420px){
  .hero h1{font-size:27px;}
  .brand-name{font-size:16px;}
  .rank-go{display:none;}
}

/* roulang page: category1 */
:root{
  --ink-900:#060A12;
  --ink-800:#0B1220;
  --ink-700:#121C2B;
  --brand:#24E0B0;
  --brand-2:#FF6B35;
  --brand-3:#3D8BFF;
  --text:#E9F2F8;
  --muted:#93A7BC;
  --line:rgba(255,255,255,.08);
  --white:#FFFFFF;
  --paper-line:#E6EBF2;
  --radius-card:18px;
  --radius-btn:12px;
  --radius-tag:8px;
  --shadow-card:0 10px 30px rgba(0,0,0,.35);
  --shadow-glow:0 0 0 1px rgba(36,224,176,.35),0 10px 28px rgba(36,224,176,.22);
  --shadow-header:0 2px 10px rgba(11,18,32,.06);
  --container:1240px;
  --section-gap:96px;
  --font-cn:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,opacity .2s ease;}
button,input,textarea,select{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4,p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--white);outline-offset:3px;}
::selection{background:rgba(36,224,176,.3);color:#04120E;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.num{font-variant-numeric:tabular-nums;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:var(--white);
  border-bottom:1px solid var(--paper-line);
  box-shadow:var(--shadow-header);
  transition:height .25s ease;
}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  height:68px;
  transition:height .25s ease;
}
.site-header.is-compact .header-inner{height:56px;}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:700;
  font-size:17px;
  color:#0B1220;
  letter-spacing:-.2px;
  flex-shrink:0;
}
.brand-mark{
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:10px;
  background:#04120E;
  color:var(--brand);
  box-shadow:0 0 0 1px rgba(36,224,176,.5),0 6px 16px rgba(36,224,176,.22);
  flex-shrink:0;
}
.brand-mark svg{width:19px;height:19px;}
.nav-menu{
  display:flex;
  align-items:center;
  gap:28px;
  margin-left:8px;
}
.nav-menu a{
  position:relative;
  font-size:15px;
  color:#3A4A5E;
  padding:6px 0;
  font-weight:500;
  white-space:nowrap;
}
.nav-menu a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  background:var(--brand);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .22s ease;
}
.nav-menu a:hover{color:#0B1220;}
.nav-menu a:hover::after{transform:scaleX(1);}
.nav-menu a.active{color:#0B1220;font-weight:600;}
.nav-menu a.active::after{transform:scaleX(1);}
.header-actions{
  display:flex;
  align-items:center;
  gap:14px;
  margin-left:auto;
}
.search-box{
  display:flex;
  align-items:center;
  gap:8px;
  width:220px;
  height:40px;
  padding:0 16px;
  border-radius:999px;
  background:#F3F6FA;
  border:1px solid transparent;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.search-box svg{width:15px;height:15px;color:#7B8CA0;flex-shrink:0;}
.search-box input{
  width:100%;
  border:0;
  background:transparent;
  font-size:14px;
  color:#0B1220;
  outline:none;
}
.search-box input::placeholder{color:#8FA0B4;}
.search-box:focus-within{
  border-color:var(--brand);
  background:var(--white);
  box-shadow:0 0 0 3px rgba(36,224,176,.18);
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  padding:0 22px;
  height:44px;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--brand);
  color:#04120E;
  box-shadow:0 8px 20px rgba(36,224,176,.18);
}
.btn-primary:hover{
  background:linear-gradient(12deg,rgba(255,255,255,.16),rgba(255,255,255,0) 60%),#2BEDBC;
  transform:translateY(-1px);
  box-shadow:var(--shadow-glow);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(36,224,176,.2);}
.btn-primary:disabled{opacity:.45;box-shadow:none;cursor:not-allowed;}
.btn-ghost{
  background:transparent;
  color:var(--brand);
  border:1px solid var(--line);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--brand);
  font-size:14px;
  font-weight:600;
  height:auto;
  padding:0;
  border-radius:0;
}
.btn-text span.arrow{transition:transform .2s ease;}
.btn-text:hover span.arrow{transform:translateX(4px);}
.header-cta{height:40px;font-size:14px;padding:0 20px;}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid var(--paper-line);
  color:#0B1220;
  align-items:center;
  justify-content:center;
  background:#F7FAFD;
}
.nav-toggle svg{width:19px;height:19px;}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;
  inset:0 0 0 auto;
  width:min(340px,86vw);
  background:var(--ink-800);
  border-left:1px solid var(--line);
  padding:24px 22px 32px;
  transform:translateX(105%);
  transition:transform .3s cubic-bezier(.4,0,.2,1);
  z-index:120;
  display:flex;
  flex-direction:column;
  gap:18px;
  overflow-y:auto;
}
.mobile-drawer.open{transform:translateX(0);}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding-bottom:14px;
  border-bottom:1px solid var(--line);
}
.drawer-head .brand{color:var(--text);font-size:16px;}
.drawer-close{
  width:36px;height:36px;border-radius:10px;
  border:1px solid var(--line);
  color:var(--muted);
  display:grid;place-items:center;
}
.drawer-links{display:flex;flex-direction:column;gap:4px;}
.drawer-links a{
  padding:13px 12px;
  border-radius:12px;
  font-size:15px;
  color:var(--text);
  border:1px solid transparent;
}
.drawer-links a:hover{background:rgba(255,255,255,.04);border-color:var(--line);}
.drawer-links a.active{background:rgba(36,224,176,.1);border-color:rgba(36,224,176,.35);color:var(--brand);font-weight:600;}
.drawer-search{display:flex;align-items:center;gap:8px;height:46px;padding:0 16px;border-radius:999px;background:rgba(255,255,255,.05);border:1px solid var(--line);}
.drawer-search input{background:transparent;border:0;outline:none;width:100%;font-size:14px;}
.drawer-search input::placeholder{color:var(--muted);}
.drawer-cta{width:100%;height:48px;}
.drawer-tip{font-size:13px;color:var(--muted);line-height:1.8;}
.scrim{
  position:fixed;inset:0;background:rgba(4,8,14,.62);
  opacity:0;pointer-events:none;transition:opacity .3s ease;z-index:110;
  backdrop-filter:blur(2px);
}
.scrim.show{opacity:1;pointer-events:auto;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  padding:72px 0 84px;
  background:
    radial-gradient(circle at 78% 22%, rgba(36,224,176,.08), transparent 58%),
    linear-gradient(180deg,#060A12 0%,#080E18 100%);
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  opacity:.14;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,0));
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,0));
  pointer-events:none;
}
.hero .container{position:relative;z-index:2;}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:56px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--brand);
  border:1px solid rgba(36,224,176,.3);
  background:rgba(36,224,176,.08);
  padding:5px 12px;
  border-radius:999px;
  letter-spacing:.4px;
  margin-bottom:20px;
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--brand);display:block;}
h1{
  font-size:44px;
  line-height:1.18;
  font-weight:800;
  letter-spacing:-.5px;
  color:#F4FAFF;
  max-width:14em;
}
.hero-sub{
  margin-top:18px;
  font-size:17px;
  color:var(--muted);
  max-width:34em;
  line-height:1.85;
}
.hero-lead{
  margin-top:22px;
  font-size:15px;
  line-height:1.95;
  color:#C3D2E0;
  max-width:36em;
  padding-left:16px;
  border-left:2px solid rgba(36,224,176,.55);
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:30px;
}
.hero-actions .btn{height:48px;padding:0 26px;}
.stat-row{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:14px;
  margin-top:34px;
  max-width:520px;
}
.stat-pill{
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:14px;
  padding:14px 16px;
  backdrop-filter:blur(14px);
}
.stat-pill b{
  display:block;
  font-size:22px;
  font-weight:800;
  color:var(--brand);
  line-height:1.3;
  font-variant-numeric:tabular-nums;
}
.stat-pill span{font-size:12.5px;color:var(--muted);}
.hero-visual{position:relative;}
.vertical-frame{
  position:relative;
  aspect-ratio:9/16;
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  background:var(--ink-700);
}
.vertical-frame img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .4s ease;
}
.vertical-frame:hover img{transform:scale(1.04);}
.vertical-frame::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,18,0) 38%,rgba(6,10,18,.92) 100%);
}
.play-dot{
  position:absolute;
  top:50%;left:50%;
  transform:translate(-50%,-50%);
  width:60px;height:60px;
  border-radius:50%;
  display:grid;place-items:center;
  background:rgba(6,10,18,.55);
  border:1px solid rgba(36,224,176,.55);
  color:var(--brand);
  backdrop-filter:blur(8px);
  box-shadow:0 0 0 1px rgba(36,224,176,.2);
  z-index:2;
}
.play-dot svg{width:20px;height:20px;}
.duration-tag{
  position:absolute;
  top:14px;right:14px;
  z-index:2;
  background:var(--brand-2);
  color:#1A0A03;
  font-size:12px;
  font-weight:700;
  border-radius:var(--radius-tag);
  padding:3px 9px;
  font-variant-numeric:tabular-nums;
}
.frame-caption{
  position:absolute;
  left:16px;right:16px;bottom:16px;
  z-index:2;
}
.frame-caption .tag{
  display:inline-block;
  font-size:11.5px;
  color:var(--brand);
  border:1px solid rgba(36,224,176,.4);
  border-radius:var(--radius-tag);
  padding:2px 8px;
  margin-bottom:8px;
}
.frame-caption strong{
  display:block;
  font-size:15px;
  line-height:1.55;
  color:#F4FAFF;
  font-weight:600;
}
.progress-line{
  margin-top:10px;
  height:3px;
  border-radius:3px;
  background:rgba(255,255,255,.18);
  overflow:hidden;
}
.progress-line i{display:block;height:100%;width:64%;background:var(--brand);border-radius:3px;}

/* ---------- 通用板块 ---------- */
.section{padding:var(--section-gap) 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:32px;
  flex-wrap:wrap;
}
.section-title{
  position:relative;
  padding-left:16px;
  font-size:32px;
  line-height:1.3;
  font-weight:800;
  letter-spacing:-.3px;
  color:#F4FAFF;
}
.section-title::before{
  content:"";
  position:absolute;
  left:0;top:8px;
  width:4px;height:22px;
  border-radius:2px;
  background:var(--brand);
  box-shadow:0 0 12px rgba(36,224,176,.6);
}
.section-desc{
  margin-top:10px;
  padding-left:16px;
  font-size:14.5px;
  color:var(--muted);
  max-width:52em;
}
.filter-row{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
}
.chip{
  font-size:13px;
  color:var(--muted);
  border:1px solid var(--line);
  border-radius:999px;
  padding:7px 16px;
  background:rgba(255,255,255,.02);
  transition:all .2s ease;
}
.chip:hover{color:var(--text);border-color:rgba(36,224,176,.45);}
.chip.is-on{
  color:#04120E;
  background:var(--brand);
  border-color:var(--brand);
  font-weight:600;
}

/* ---------- 竖卡网格 ---------- */
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.v-card{
  position:relative;
  display:block;
  aspect-ratio:9/16;
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--ink-800);
  box-shadow:var(--shadow-card);
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.v-card img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .24s ease;
}
.v-card::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,18,.05) 30%,rgba(6,10,18,.95) 100%);
}
.v-card:hover{
  transform:translateY(-4px);
  border-color:rgba(36,224,176,.5);
  box-shadow:0 18px 40px rgba(0,0,0,.45);
}
.v-card:hover img{transform:scale(1.04);}
.v-card .duration-tag{
  top:14px;left:14px;right:auto;
  background:rgba(6,10,18,.72);
  color:var(--brand);
  border:1px solid rgba(36,224,176,.45);
  backdrop-filter:blur(8px);
}
.v-card-body{
  position:absolute;
  left:18px;right:18px;bottom:18px;
  z-index:2;
}
.v-card-body .tag{
  display:inline-block;
  font-size:11.5px;
  color:var(--brand-3);
  border:1px solid rgba(61,139,255,.4);
  border-radius:var(--radius-tag);
  padding:2px 8px;
  margin-bottom:9px;
}
.v-card-body h3{
  font-size:18px;
  line-height:1.45;
  font-weight:700;
  color:#F4FAFF;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.v-card-body p{
  margin-top:8px;
  font-size:13px;
  color:var(--muted);
  line-height:1.7;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.v-card-body .meta{
  margin-top:10px;
  font-size:12.5px;
  color:#6F8499;
  display:flex;
  align-items:center;
  gap:10px;
  font-variant-numeric:tabular-nums;
}
.hot-badge{
  position:absolute;
  top:14px;right:14px;
  z-index:2;
  font-size:11.5px;
  font-weight:700;
  color:#1A0A03;
  background:var(--brand-2);
  border-radius:6px;
  padding:2px 7px;
}

/* ---------- 要点清单 ---------- */
.point-list{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px 28px;
  margin-top:8px;
}
.point-item{
  display:flex;
  gap:16px;
  padding:22px 24px;
  border-radius:var(--radius-card);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  transition:border-color .22s ease,transform .22s ease;
}
.point-item:hover{border-color:rgba(36,224,176,.4);transform:translateY(-2px);}
.point-item .marker{
  flex-shrink:0;
  width:12px;height:12px;
  margin-top:9px;
  border-radius:3px;
  background:var(--brand);
  box-shadow:0 0 0 4px rgba(36,224,176,.14);
}
.point-item h3{
  font-size:16.5px;
  font-weight:700;
  color:#F4FAFF;
  margin-bottom:6px;
}
.point-item p{font-size:14px;color:var(--muted);line-height:1.85;}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:920px;}
.faq-item{
  border:1px solid var(--line);
  border-radius:14px;
  background:rgba(255,255,255,.04);
  backdrop-filter:blur(14px);
  overflow:hidden;
  transition:border-color .22s ease;
}
.faq-item.open{border-color:rgba(36,224,176,.4);}
.faq-q{
  width:100%;
  min-height:64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:14px 22px;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:#F4FAFF;
}
.faq-q .ico{
  flex-shrink:0;
  width:26px;height:26px;
  border-radius:50%;
  border:1px solid rgba(36,224,176,.4);
  color:var(--brand);
  display:grid;place-items:center;
  font-size:16px;
  line-height:1;
  transition:transform .25s ease,background .25s ease;
}
.faq-item.open .faq-q .ico{transform:rotate(45deg);background:rgba(36,224,176,.12);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
}
.faq-a p{
  padding:0 22px 22px;
  font-size:15px;
  color:var(--muted);
  line-height:1.95;
}

/* ---------- CTA 转化条 ---------- */
.cta-band{
  margin-top:12px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  padding:34px 40px;
  border-radius:22px;
  background:linear-gradient(120deg,rgba(36,224,176,.1),rgba(18,28,43,.9) 62%);
  border:1px solid rgba(36,224,176,.26);
  box-shadow:0 18px 44px rgba(0,0,0,.35);
}
.cta-band h2{
  font-size:26px;
  font-weight:800;
  letter-spacing:-.3px;
  color:#F4FAFF;
}
.cta-band p{
  margin-top:8px;
  font-size:14.5px;
  color:var(--muted);
  max-width:44em;
}
.cta-band .btn{height:50px;padding:0 30px;font-size:15.5px;}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--ink-900);
  border-top:1px solid var(--line);
  padding:64px 0 28px;
  margin-top:var(--section-gap);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-col{padding-right:20px;border-right:1px solid var(--line);}
.footer-col:last-child{border-right:0;padding-right:0;}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  color:#F4FAFF;
  margin-bottom:16px;
}
.footer-brand .brand-mark{width:32px;height:32px;}
.footer-col p{font-size:14px;color:var(--muted);line-height:1.9;max-width:30em;}
.footer-title{
  font-size:14px;
  font-weight:700;
  color:#F4FAFF;
  margin-bottom:16px;
  letter-spacing:.4px;
}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:var(--muted);}
.footer-links a:hover{color:var(--brand);}
.footer-contact{display:flex;flex-direction:column;gap:11px;font-size:14px;color:var(--muted);}
.footer-contact b{color:#D6E4F0;font-weight:600;}
.footer-bottom{
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-size:13px;
  color:#7288A0;
  flex-wrap:wrap;
}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .nav-menu{gap:22px;}
  .search-box{width:180px;}
}
@media (max-width:1024px){
  :root{--section-gap:72px;}
  .nav-menu{display:none;}
  .search-box{display:none;}
  .header-cta{display:none;}
  .nav-toggle{display:flex;}
  .hero{padding:56px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-visual{order:-1;max-width:320px;}
  h1{font-size:36px;line-height:1.22;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .point-list{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-col{border-right:0;padding-right:0;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 26px;}
}
@media (max-width:640px){
  :root{--section-gap:56px;}
  .container{padding:0 16px;}
  body{font-size:15.5px;}
  .header-inner{height:60px;gap:12px;}
  .brand{font-size:15.5px;}
  .brand-mark{width:30px;height:30px;}
  h1{font-size:30px;line-height:1.25;}
  .hero-sub{font-size:15.5px;}
  .hero-lead{font-size:14.5px;}
  .hero-actions .btn{width:100%;}
  .stat-row{grid-template-columns:1fr;gap:10px;}
  .stat-pill{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;}
  .stat-pill b{font-size:19px;}
  .hero-visual{max-width:100%;width:100%;}
  .vertical-frame{aspect-ratio:9/16;max-height:460px;}
  .section-title{font-size:24px;}
  .section-title::before{top:5px;height:19px;}
  .section-desc{padding-left:0;font-size:14px;}
  .card-grid{grid-template-columns:1fr;gap:18px;}
  .v-card{aspect-ratio:4/5;}
  .point-item{padding:18px;}
  .faq-q{font-size:15px;padding:12px 16px;}
  .faq-a p{padding:0 16px 18px;font-size:14.5px;}
  .cta-band{padding:24px 20px;border-radius:18px;}
  .cta-band h2{font-size:21px;}
  .cta-band .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .site-footer{padding:48px 0 24px;margin-top:64px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
:root{
  --ink-900:#060A12;
  --ink-800:#0B1220;
  --ink-700:#121C2B;
  --brand:#24E0B0;
  --brand-2:#FF6B35;
  --brand-3:#3D8BFF;
  --text:#E9F2F8;
  --muted:#93A7BC;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --radius-card:18px;
  --radius-btn:12px;
  --radius-tag:8px;
  --shadow:0 10px 30px rgba(0,0,0,.35);
  --glow:0 0 0 1px rgba(36,224,176,.35), 0 10px 28px rgba(36,224,176,.22);
  --glass:rgba(255,255,255,.04);
  --container:1240px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid #FFFFFF;outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:90;
  background:#FFFFFF;
  border-bottom:1px solid #E6EBF2;
  box-shadow:0 2px 10px rgba(11,18,32,.06);
  color:#0B1220;
}
.header-inner{
  display:flex;align-items:center;gap:26px;
  height:68px;transition:height .22s ease;
}
.site-header.compact .header-inner{height:56px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:#0B1220;color:var(--brand);
  box-shadow:0 0 0 1px rgba(36,224,176,.45),0 6px 16px rgba(36,224,176,.22);
  flex:0 0 auto;
}
.brand-mark svg{width:18px;height:18px}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.2px;color:#0B1220;white-space:nowrap}
.nav-menu{display:flex;align-items:center;gap:28px;margin-left:6px}
.nav-menu a{
  position:relative;font-size:15px;color:#4A5B70;padding:6px 0;
  transition:color .2s ease;
}
.nav-menu a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.nav-menu a:hover{color:#0B1220}
.nav-menu a:hover::after{transform:scaleX(1)}
.nav-menu a.active{color:#0B1220;font-weight:600}
.nav-menu a.active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-box{
  display:flex;align-items:center;gap:8px;height:38px;padding:0 14px;
  border-radius:999px;background:#F3F6FA;border:1px solid transparent;
  transition:border-color .2s ease, box-shadow .2s ease, background .2s ease;
}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(36,224,176,.18);background:#FFFFFF}
.search-box svg{width:15px;height:15px;color:#7C8CA0;flex:0 0 auto}
.search-box input{
  border:0;background:transparent;outline:none;font-size:14px;color:#0B1220;width:150px;
}
.search-box input::placeholder{color:#8C9BAE}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);border:1px solid transparent;
  font-weight:700;font-size:15px;line-height:1;white-space:nowrap;
  padding:14px 22px;transition:all .2s ease;
}
.btn-primary{
  background:var(--brand);color:#04120E;
  box-shadow:0 6px 18px rgba(36,224,176,.22);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:var(--glow)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(36,224,176,.2)}
.btn-ghost{
  background:transparent;border-color:var(--line-strong);color:var(--brand);
}
.btn-ghost:hover{border-color:var(--brand);background:rgba(36,224,176,.08);transform:translateY(-1px)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:15px;
  background:none;border:0;padding:0;
}
.btn-text .arrow{transition:transform .2s ease}
.btn-text:hover .arrow{transform:translateX(4px)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:12px;background:#F3F6FA;border:1px solid #E6EBF2;
  align-items:center;justify-content:center;color:#0B1220;
}
.menu-toggle svg{width:20px;height:20px}
.mobile-drawer{
  display:none;background:var(--ink-800);border-top:1px solid var(--line);
  padding:18px 0 22px;
}
.mobile-drawer.open{display:block}
.mobile-drawer .drawer-inner{display:flex;flex-direction:column;gap:14px}
.mobile-drawer .search-box{background:rgba(255,255,255,.06);border:1px solid var(--line);width:100%}
.mobile-drawer .search-box input{color:var(--text);width:100%}
.mobile-drawer .search-box input::placeholder{color:var(--muted)}
.mobile-drawer .search-box svg{color:var(--muted)}
.drawer-nav{display:flex;flex-direction:column;gap:2px;margin-top:4px}
.drawer-nav a{
  color:var(--text);font-size:15px;padding:12px 4px;border-bottom:1px solid var(--line);
}
.drawer-nav a.active{color:var(--brand);font-weight:600}

/* ============ Page hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  padding:44px 0 40px;
  background:
    radial-gradient(640px 320px at 16% -10%, rgba(36,224,176,.08), transparent 70%),
    var(--ink-900);
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;
  background:radial-gradient(circle, rgba(61,139,255,.10), transparent 65%);
  pointer-events:none;
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13px;color:var(--muted);margin-bottom:22px;
}
.breadcrumb a{color:var(--muted);transition:color .2s ease}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{width:1px;height:12px;background:var(--line-strong);display:inline-block}
.crumb-current{color:#C3D3E2;max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--radius-tag);
  font-size:12px;letter-spacing:.4px;line-height:1.6;
  background:rgba(36,224,176,.12);color:var(--brand);border:1px solid rgba(36,224,176,.28);
}
.tag-ghost{background:rgba(61,139,255,.10);color:#7FB2FF;border-color:rgba(61,139,255,.3)}
.tag-hot{background:rgba(255,107,53,.14);color:#FF8B5E;border-color:rgba(255,107,53,.32)}
.article-title{
  font-size:38px;line-height:1.32;font-weight:800;letter-spacing:-.4px;
  max-width:900px;color:#F3F9FD;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  margin-top:20px;font-size:13px;color:var(--muted);
  font-variant-numeric:tabular-nums;
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(147,167,188,.5)}
.article-meta b{color:#C7D7E6;font-weight:600}

/* ============ Article layout ============ */
.section{padding:64px 0}
.article-section{padding:56px 0 24px}
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;
  align-items:start;
}
.article-body{
  max-width:760px;font-size:16px;line-height:2;color:#D3E0EC;
}
.article-body p{margin:0 0 20px}
.article-body h2{
  position:relative;font-size:28px;line-height:1.42;font-weight:800;color:#F2F8FD;
  margin:44px 0 18px;padding-left:16px;letter-spacing:-.2px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:8px;width:4px;height:22px;border-radius:2px;background:var(--brand);
}
.article-body h3{font-size:21px;line-height:1.55;font-weight:700;color:#EAF4FC;margin:32px 0 14px}
.article-body h4{font-size:17px;font-weight:700;color:#E4EFF8;margin:24px 0 10px}
.article-body ul,.article-body ol{padding-left:24px;margin:0 0 20px;list-style:revert}
.article-body li{margin:8px 0}
.article-body ul li::marker{color:var(--brand)}
.article-body ol li::marker{color:var(--brand);font-weight:700}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;border-left:3px solid var(--brand);
  background:var(--glass);border-radius:0 12px 12px 0;color:#C9D9E7;
  box-shadow:inset 0 0 0 1px var(--line);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:26px 0 10px;width:100%}
.article-body figure{margin:26px 0}
.article-body figcaption{font-size:13px;color:var(--muted);line-height:1.8;margin-top:8px}
.article-body a{color:var(--brand-3);border-bottom:1px solid rgba(61,139,255,.35);transition:color .2s ease,border-color .2s ease}
.article-body a:hover{color:#7FB2FF;border-color:#7FB2FF}
.article-body hr{border:0;border-top:1px solid var(--line);margin:38px 0}
.article-body strong{color:#FFFFFF;font-weight:700}
.article-body code{
  background:rgba(255,255,255,.06);border:1px solid var(--line);
  padding:2px 6px;border-radius:6px;font-size:14px;
}
.empty-state{
  display:flex;flex-direction:column;align-items:center;text-align:center;gap:16px;
  padding:64px 28px;border-radius:var(--radius-card);
  background:var(--glass);border:1px solid var(--line);box-shadow:var(--shadow);
}
.empty-icon{
  width:56px;height:56px;border-radius:16px;display:grid;place-items:center;
  border:1px solid var(--line-strong);color:var(--brand);background:rgba(36,224,176,.08);
}
.empty-icon svg{width:24px;height:24px}
.empty-state h2{font-size:20px;font-weight:700;color:#EAF4FC;margin:0}
.empty-state p{color:var(--muted);font-size:15px;max-width:440px;margin:0}

/* ============ Aside ============ */
.article-aside{position:relative}
.side-sticky{position:sticky;top:88px;display:flex;flex-direction:column;gap:18px}
.side-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px;box-shadow:var(--shadow);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.side-title{
  font-size:13px;font-weight:700;letter-spacing:1.2px;color:var(--muted);
  text-transform:uppercase;margin-bottom:14px;
}
.side-nav{display:flex;flex-direction:column;gap:2px}
.side-nav a{
  display:flex;align-items:center;gap:10px;font-size:14px;color:#C6D5E3;
  padding:9px 0;border-bottom:1px solid var(--line);transition:color .2s ease,transform .2s ease;
}
.side-nav li:last-child a{border-bottom:0}
.side-nav a::before{
  content:"";width:5px;height:5px;border-radius:50%;background:rgba(36,224,176,.55);flex:0 0 auto;
}
.side-nav a:hover{color:var(--brand);transform:translateX(3px)}
.side-rec{display:flex;flex-direction:column;gap:14px}
.side-rec a{display:block;transition:transform .2s ease}
.side-rec a:hover{transform:translateX(3px)}
.rec-title{display:block;font-size:14px;line-height:1.7;color:#DCE8F3;transition:color .2s ease}
.side-rec a:hover .rec-title{color:var(--brand)}
.rec-time{display:block;font-size:12px;color:var(--muted);margin-top:6px;font-variant-numeric:tabular-nums}
.side-cta{
  background:linear-gradient(160deg, rgba(36,224,176,.14), rgba(36,224,176,.03));
  border:1px solid rgba(36,224,176,.28);border-radius:var(--radius-card);padding:22px;
}
.side-cta h3{font-size:16px;font-weight:700;color:#EAF7F2;margin:0 0 8px}
.side-cta p{font-size:13px;line-height:1.85;color:#A9C4BC;margin:0 0 16px}
.side-cta .btn{width:100%}

/* ============ Related ============ */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px}
.section-head h2{
  position:relative;font-size:32px;line-height:1.3;font-weight:800;color:#F2F8FD;padding-left:16px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:9px;width:4px;height:22px;border-radius:2px;background:var(--brand);
}
.section-head p{font-size:14px;color:var(--muted);margin-top:8px;padding-left:16px}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.content-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.content-card:hover{transform:translateY(-4px);border-color:rgba(36,224,176,.5);box-shadow:0 16px 36px rgba(0,0,0,.45)}
.card-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--ink-700)}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .28s ease}
.content-card:hover .card-cover img{transform:scale(1.04)}
.card-cover .card-tag{
  position:absolute;left:12px;top:12px;padding:4px 10px;border-radius:var(--radius-tag);
  font-size:12px;background:rgba(6,10,18,.72);color:var(--brand);border:1px solid rgba(36,224,176,.32);
  backdrop-filter:blur(6px);
}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{
  font-size:18px;line-height:1.6;font-weight:700;color:#EAF4FC;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-body p{
  font-size:14px;line-height:1.85;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
  font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums;
}
.card-foot .read{color:var(--brand);font-weight:600;font-size:13px}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{
  background:var(--glass);border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--shadow);overflow:hidden;transition:border-color .2s ease;
}
.faq-item.open{border-color:rgba(36,224,176,.42)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:none;border:0;color:#EAF4FC;text-align:left;
  padding:20px 22px;font-size:16px;font-weight:600;line-height:1.7;
}
.faq-q:hover{color:var(--brand)}
.faq-icon{
  flex:0 0 auto;width:22px;height:22px;position:relative;color:var(--brand);
  transition:transform .24s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
}
.faq-icon::before{left:0;right:0;top:10px;height:2px}
.faq-icon::after{top:0;bottom:0;left:10px;width:2px}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-a{display:none;padding:0 22px 20px;font-size:15px;line-height:1.95;color:#B7C8D8}
.faq-item.open .faq-a{display:block}

/* ============ CTA ============ */
.cta-band{
  margin:0 0 8px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  padding:32px 34px;border-radius:22px;
  background:
    radial-gradient(440px 200px at 12% 10%, rgba(36,224,176,.12), transparent 70%),
    var(--ink-800);
  border:1px solid var(--line);box-shadow:var(--shadow);
}
.cta-band h2{font-size:24px;line-height:1.45;font-weight:800;color:#F2F8FD}
.cta-band p{font-size:14px;color:var(--muted);margin-top:8px;max-width:56ch}
.cta-band .cta-actions{display:flex;gap:12px;flex:0 0 auto}
.return-row{margin-top:28px}

/* ============ Footer ============ */
.site-footer{
  background:var(--ink-900);border-top:1px solid var(--line);
  padding:64px 0 28px;margin-top:64px;
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;
  padding-bottom:40px;border-bottom:1px solid var(--line);
}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#F2F8FD;margin-bottom:14px}
.footer-brand .brand-mark{
  width:32px;height:32px;border-radius:9px;display:grid;place-items:center;
  background:#0B1220;color:var(--brand);box-shadow:0 0 0 1px rgba(36,224,176,.4);
}
.footer-brand .brand-mark svg{width:17px;height:17px}
.footer-col p{font-size:14px;line-height:1.95;color:var(--muted);max-width:34ch}
.footer-title{font-size:14px;font-weight:700;color:#E9F2F8;margin-bottom:16px;letter-spacing:.4px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--muted);transition:color .2s ease,transform .2s ease;width:fit-content}
.footer-links a:hover{color:var(--brand);transform:translateX(3px)}
.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--muted)}
.footer-contact b{color:#D8E6F2;font-weight:600}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding-top:24px;font-size:13px;color:#7C90A5;
}
.mobile-cta{display:none}

/* ============ Responsive ============ */
@media (max-width:1100px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:32px}
  .search-box input{width:120px}
  .nav-menu{gap:20px}
}
@media (max-width:1024px){
  .nav-menu{display:none}
  .search-box{display:none}
  .menu-toggle{display:flex}
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .side-sticky{position:static}
  .article-body{max-width:none}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .section{padding:56px 0}
  .article-title{font-size:32px}
  .section-head h2{font-size:28px}
}
@media (max-width:768px){
  .header-inner{height:60px;gap:12px}
  .site-header.compact .header-inner{height:56px}
  .brand-text{font-size:15px}
  .article-title{font-size:28px;line-height:1.36}
  .page-hero{padding:32px 0 30px}
  .article-body{font-size:15.5px;line-height:1.95}
  .article-body h2{font-size:24px}
  .article-body h3{font-size:19px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:26px 22px;gap:18px}
  .cta-band h2{font-size:21px}
  .cta-band .cta-actions{width:100%}
  .cta-band .cta-actions .btn{flex:1}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
  .crumb-current{max-width:100%}
}
@media (max-width:640px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
  .section-head h2{font-size:24px}
  .article-title{font-size:26px;line-height:1.38}
  .article-meta{gap:8px;font-size:12.5px}
  .side-card{padding:16px}
  .faq-q{padding:16px 16px;font-size:15px}
  .faq-a{padding:0 16px 16px;font-size:14.5px}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;padding-bottom:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;font-size:12px}
  .site-footer{padding:44px 0 20px;margin-top:48px}
  body{padding-bottom:76px}
  .mobile-cta{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:95;
    align-items:center;justify-content:space-between;gap:14px;
    padding:10px 16px;height:64px;
    background:rgba(11,18,32,.94);border-top:1px solid var(--line);
    backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  }
  .mobile-cta span{font-size:13px;color:#C6D5E3;line-height:1.4}
  .mobile-cta .btn{flex:0 0 auto;padding:12px 20px}
}

/* roulang page: category2 */
:root{
  --ink-900:#060A12;
  --ink-800:#0B1220;
  --ink-700:#121C2B;
  --brand:#24E0B0;
  --brand-2:#FF6B35;
  --brand-3:#3D8BFF;
  --text:#E9F2F8;
  --muted:#93A7BC;
  --line:rgba(255,255,255,.08);
  --nav-line:#E6EBF2;
  --nav-text:#0B1220;
  --white:#FFFFFF;
  --radius:18px;
  --radius-sm:8px;
  --radius-btn:12px;
  --shadow:0 10px 30px rgba(0,0,0,.35);
  --glow:0 0 0 1px rgba(36,224,176,.35),0 10px 28px rgba(36,224,176,.22);
  --container:1240px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;}
input,textarea,select{font-family:inherit;font-size:15px;color:var(--text);}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
::selection{background:rgba(36,224,176,.3);color:#fff;}
:focus-visible{outline:2px solid #ffffff;outline-offset:3px;border-radius:6px;}

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

/* ============ Header ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:var(--white);
  border-bottom:1px solid var(--nav-line);
  box-shadow:0 2px 10px rgba(11,18,32,.06);
  transition:box-shadow .25s ease;
}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  height:68px;
  transition:height .25s ease;
}
.site-header.is-scrolled .header-inner{height:56px;}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--nav-text);
  font-weight:700;
  font-size:17px;
  letter-spacing:-.2px;
  white-space:nowrap;
  flex:0 0 auto;
}
.brand-mark{
  width:34px;height:34px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:#04120E;
  color:var(--brand);
  box-shadow:0 0 0 1px rgba(36,224,176,.45),0 6px 16px rgba(36,224,176,.25);
}
.brand-mark svg{width:19px;height:19px;}
.nav-menu{
  display:flex;
  align-items:center;
  gap:28px;
  margin-right:auto;
}
.nav-menu a{
  position:relative;
  font-size:15px;
  color:#33465C;
  padding:6px 0;
  transition:color .2s ease;
  white-space:nowrap;
}
.nav-menu a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  background:var(--brand);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s ease;
}
.nav-menu a:hover{color:#0B1220;}
.nav-menu a:hover::after{transform:scaleX(1);}
.nav-menu a.active{color:#0B1220;font-weight:600;}
.nav-menu a.active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.nav-search{position:relative;}
.nav-search input{
  width:220px;
  height:40px;
  border-radius:999px;
  border:1px solid transparent;
  background:#F3F6FA;
  color:#0B1220;
  padding:0 16px;
  font-size:14px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.nav-search input::placeholder{color:#7E8FA3;}
.nav-search input:focus{
  outline:none;
  background:#fff;
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(36,224,176,.22);
}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid var(--nav-line);
  background:#F3F6FA;
  align-items:center;
  justify-content:center;
  gap:4px;
  flex-direction:column;
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  background:#0B1220;
  border-radius:2px;
  transition:transform .2s ease,opacity .2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* 移动抽屉 */
.mobile-drawer{
  display:none;
  background:var(--ink-800);
  border-top:1px solid var(--line);
  padding:20px 24px 26px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer .nav-search{width:100%;margin-bottom:14px;}
.mobile-drawer .nav-search input{width:100%;height:46px;background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text);}
.mobile-drawer .nav-search input::placeholder{color:var(--muted);}
.drawer-links{display:flex;flex-direction:column;gap:2px;margin-bottom:18px;}
.drawer-links a{
  padding:12px 4px;
  font-size:15px;
  color:#CBD9E6;
  border-bottom:1px solid var(--line);
}
.drawer-links a.active{color:var(--brand);font-weight:600;}
.drawer-links a:hover{color:var(--brand);}
.mobile-drawer .btn{width:100%;}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border:1px solid transparent;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  line-height:1;
  padding:14px 24px;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease,opacity .2s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--brand);
  color:#04120E;
  box-shadow:0 8px 22px rgba(36,224,176,.2);
}
.btn-primary:hover{
  background:linear-gradient(12deg,rgba(255,255,255,.16),rgba(255,255,255,0) 60%),#38E9BE;
  transform:translateY(-1px);
  box-shadow:var(--glow);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(36,224,176,.18);}
.btn-ghost{
  background:transparent;
  color:var(--brand);
  border-color:var(--line);
}
.btn-ghost:hover{border-color:rgba(36,224,176,.7);background:rgba(36,224,176,.07);}
.btn-sm{padding:11px 18px;font-size:14px;}
.btn-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--brand);
  font-size:14px;
  font-weight:600;
  background:none;
  border:0;
  padding:0;
}
.btn-link svg{transition:transform .2s ease;}
.btn-link:hover svg{transform:translateX(4px);}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none;}

/* ============ 通用区块 ============ */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:32px;
}
.section-title{
  position:relative;
  font-size:32px;
  line-height:1.25;
  font-weight:800;
  letter-spacing:-.3px;
  padding-left:16px;
}
.section-title::before{
  content:"";
  position:absolute;
  left:0;top:6px;
  width:4px;height:22px;
  border-radius:2px;
  background:var(--brand);
  box-shadow:0 0 12px rgba(36,224,176,.6);
}
.section-sub{
  color:var(--muted);
  font-size:14px;
  margin-top:8px;
  padding-left:16px;
  max-width:640px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--brand);
  font-weight:600;
  margin-bottom:18px;
}
.eyebrow::before{
  content:"";
  width:22px;height:1px;
  background:var(--brand);
  opacity:.7;
}

/* ============ Hero ============ */
.hero{
  position:relative;
  overflow:hidden;
  background:
    radial-gradient(circle at 78% 18%,rgba(36,224,176,.08),transparent 46%),
    radial-gradient(circle at 8% 82%,rgba(61,139,255,.08),transparent 50%),
    var(--ink-900);
  padding:80px 0 88px;
  border-bottom:1px solid var(--line);
}
.hero-grid{
  display:grid;
  grid-template-columns:1.08fr .92fr;
  gap:56px;
  align-items:center;
}
.hero h1{
  font-size:44px;
  line-height:1.18;
  font-weight:800;
  letter-spacing:-.5px;
  margin-bottom:18px;
}
.hero h1 em{
  font-style:normal;
  color:var(--brand);
}
.hero-lead{
  color:#C4D3E0;
  font-size:16px;
  line-height:1.9;
  max-width:560px;
  margin-bottom:26px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.stat-row{display:flex;flex-wrap:wrap;gap:12px;}
.stat-pill{
  display:flex;
  align-items:center;
  gap:10px;
  padding:10px 16px;
  border-radius:999px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  font-size:13px;
  color:var(--muted);
}
.stat-pill b{
  color:var(--text);
  font-size:16px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
}
.hero-media{position:relative;}
.hero-media .media-frame{
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  aspect-ratio:4/3;
}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-media::after{
  content:"";
  position:absolute;
  inset:auto -18px -18px auto;
  width:64%;height:60%;
  border-radius:var(--radius);
  border:1px solid rgba(36,224,176,.28);
  z-index:-1;
}
.hero-tag{
  position:absolute;
  left:18px;bottom:18px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 14px;
  border-radius:var(--radius-sm);
  background:rgba(6,10,18,.72);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  font-size:13px;
  color:#DCE8F3;
}
.dot{width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px var(--brand);}

/* ============ 交错图文 ============ */
.split-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:64px;
  align-items:center;
  padding:48px 0;
  border-bottom:1px solid var(--line);
}
.split-row:first-of-type{padding-top:0;}
.split-row:last-of-type{border-bottom:0;padding-bottom:0;}
.split-row.reverse .split-media{order:2;}
.split-media{
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  aspect-ratio:4/3;
  position:relative;
}
.split-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.split-media:hover img{transform:scale(1.04);}
.media-badge{
  position:absolute;
  left:14px;top:14px;
  padding:6px 12px;
  border-radius:var(--radius-sm);
  background:rgba(255,107,53,.92);
  color:#1A0A02;
  font-size:12px;
  font-weight:700;
  letter-spacing:.02em;
}
.split-body h2{
  font-size:28px;
  line-height:1.3;
  font-weight:800;
  letter-spacing:-.3px;
  margin-bottom:14px;
}
.split-body p{color:#B9C9D6;margin-bottom:16px;}
.check-list{display:flex;flex-direction:column;gap:12px;margin-bottom:22px;}
.check-list li{
  position:relative;
  padding-left:26px;
  font-size:15px;
  color:#CBD9E6;
}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;top:9px;
  width:12px;height:12px;
  border-radius:4px;
  background:rgba(36,224,176,.18);
  border:1px solid rgba(36,224,176,.6);
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px;}
.tag{
  display:inline-flex;
  align-items:center;
  padding:5px 12px;
  border-radius:var(--radius-sm);
  font-size:12px;
  color:#B8CBDD;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
}
.tag.is-brand{color:var(--brand);border-color:rgba(36,224,176,.45);background:rgba(36,224,176,.08);}
.tag.is-blue{color:#8AB8FF;border-color:rgba(61,139,255,.4);background:rgba(61,139,255,.09);}

/* ============ 对比要点 ============ */
.compare-wrap{
  background:linear-gradient(180deg,rgba(18,28,43,.9),rgba(11,18,32,.9));
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.compare-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
}
.compare-card{
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  backdrop-filter:blur(14px);
  padding:32px 30px;
  display:flex;
  flex-direction:column;
  gap:18px;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.compare-card:hover{transform:translateY(-4px);border-color:rgba(36,224,176,.5);box-shadow:var(--glow);}
.compare-card h3{font-size:22px;line-height:1.35;font-weight:700;}
.compare-card .compare-note{color:var(--muted);font-size:14px;}
.compare-list{display:flex;flex-direction:column;gap:12px;}
.compare-list li{
  display:flex;
  gap:12px;
  font-size:15px;
  color:#C9D8E4;
  padding-bottom:12px;
  border-bottom:1px dashed var(--line);
}
.compare-list li:last-child{border-bottom:0;padding-bottom:0;}
.compare-list b{color:var(--brand);font-variant-numeric:tabular-nums;flex:0 0 auto;}
.compare-card .btn-link{margin-top:auto;}

/* ============ 数据条 ============ */
.metric-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.metric{
  padding:26px 24px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
}
.metric b{
  display:block;
  font-size:34px;
  line-height:1.1;
  font-weight:800;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
  margin-bottom:8px;
}
.metric span{font-size:14px;color:var(--muted);}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;}
.faq-item{
  border-radius:14px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  backdrop-filter:blur(14px);
  overflow:hidden;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item.is-open{border-color:rgba(36,224,176,.45);box-shadow:0 0 0 1px rgba(36,224,176,.18);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:64px;
  padding:16px 22px;
  background:none;
  border:0;
  color:var(--text);
  font-size:16px;
  font-weight:600;
  text-align:left;
}
.faq-icon{
  position:relative;
  flex:0 0 auto;
  width:20px;height:20px;
  transition:transform .28s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--brand);
  border-radius:2px;
}
.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-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .32s ease;
}
.faq-a p{
  padding:0 22px 22px;
  color:#B7C7D5;
  font-size:15.5px;
  line-height:1.95;
}

/* ============ 相关推荐卡 ============ */
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.card{
  display:flex;
  flex-direction:column;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  backdrop-filter:blur(14px);
  overflow:hidden;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.card:hover{transform:translateY(-4px);border-color:rgba(36,224,176,.5);box-shadow:var(--shadow);}
.card-cover{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease;}
.card:hover .card-cover img{transform:scale(1.04);}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:18px;line-height:1.5;font-weight:700;}
.card-body p{font-size:14px;color:var(--muted);line-height:1.75;}
.card-meta{
  display:flex;
  align-items:center;
  gap:12px;
  font-size:13px;
  color:#7F93A8;
  margin-top:auto;
  padding-top:12px;
  border-top:1px solid var(--line);
  font-variant-numeric:tabular-nums;
}
.card-meta .btn-link{margin-left:auto;}

/* ============ CTA ============ */
.cta-band{
  border-radius:var(--radius);
  border:1px solid rgba(36,224,176,.28);
  background:
    radial-gradient(circle at 88% 20%,rgba(36,224,176,.12),transparent 55%),
    rgba(255,255,255,.04);
  backdrop-filter:blur(14px);
  padding:40px 44px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
}
.cta-band h2{font-size:28px;line-height:1.3;font-weight:800;margin-bottom:8px;}
.cta-band p{color:var(--muted);font-size:15px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ============ Footer ============ */
.site-footer{
  background:var(--ink-900);
  border-top:1px solid var(--line);
  padding:64px 0 28px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr .8fr .8fr 1fr;
  gap:40px;
  padding-bottom:36px;
}
.footer-col + .footer-col{border-left:1px solid var(--line);padding-left:32px;}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  color:var(--text);
  margin-bottom:14px;
}
.footer-col p{color:var(--muted);font-size:14px;line-height:1.9;max-width:340px;}
.footer-title{
  font-size:14px;
  font-weight:700;
  color:var(--text);
  margin-bottom:16px;
  letter-spacing:.02em;
}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:var(--muted);font-size:14px;transition:color .2s ease,transform .2s ease;}
.footer-links a:hover{color:var(--brand);}
.footer-contact{display:flex;flex-direction:column;gap:10px;color:var(--muted);font-size:14px;}
.footer-contact b{color:#CBD9E6;font-weight:600;}
.footer-bottom{
  border-top:1px solid var(--line);
  padding-top:22px;
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  color:#71849A;
  font-size:13px;
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .nav-menu{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions{gap:10px;}
  .nav-search input{width:180px;}
  .hero{padding:56px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero h1{font-size:36px;line-height:1.24;}
  .hero-media::after{display:none;}
  .split-row{grid-template-columns:1fr;gap:28px;padding:36px 0;}
  .split-row.reverse .split-media{order:0;}
  .compare-grid{grid-template-columns:1fr;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .metric-strip{grid-template-columns:repeat(2,1fr);}
  .section{padding:72px 0;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-col + .footer-col{border-left:0;padding-left:0;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .header-inner{height:62px;gap:16px;}
  .site-header.is-scrolled .header-inner{height:56px;}
  .brand{font-size:15px;}
  .brand-mark{width:30px;height:30px;border-radius:9px;}
  .nav-search{display:none;}
  .header-actions .btn{display:none;}
  .section{padding:56px 0;}
  .section-title{font-size:26px;}
  .hero h1{font-size:30px;line-height:1.28;}
  .hero-lead{font-size:15px;}
  .split-body h2{font-size:23px;}
  .card-grid{grid-template-columns:1fr;}
  .metric-strip{grid-template-columns:1fr 1fr;gap:14px;}
  .metric b{font-size:26px;}
  .cta-band h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .hero{padding:44px 0 52px;}
  .hero h1{font-size:26px;}
  .hero-cta{gap:10px;}
  .btn{padding:13px 20px;font-size:14px;}
  .stat-pill{padding:9px 13px;font-size:12px;}
  .stat-pill b{font-size:14px;}
  .metric-strip{grid-template-columns:1fr;}
  .faq-q{padding:14px 18px;font-size:15px;}
  .faq-a p{padding:0 18px 18px;font-size:15px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}

/* roulang page: category3 */
:root{
  --ink-900:#060A12;
  --ink-800:#0B1220;
  --ink-700:#121C2B;
  --brand:#24E0B0;
  --brand-2:#FF6B35;
  --brand-3:#3D8BFF;
  --text:#E9F2F8;
  --muted:#93A7BC;
  --line:rgba(255,255,255,.08);
  --card-bg:rgba(255,255,255,.04);
  --r-card:18px;
  --r-btn:12px;
  --r-tag:8px;
  --shadow:0 10px 30px rgba(0,0,0,.35);
  --glow:0 0 0 1px rgba(36,224,176,.35),0 10px 28px rgba(36,224,176,.22);
  --blur:blur(14px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select,textarea{font:inherit}
:focus-visible{outline:2px solid #fff;outline-offset:2px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}

/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid #E6EBF2;
  box-shadow:0 2px 10px rgba(11,18,32,.06);
  transition:box-shadow .25s ease;
}
.site-header.is-compact{box-shadow:0 4px 18px rgba(11,18,32,.12)}
.header-inner{display:flex;align-items:center;gap:24px;height:68px;transition:height .25s ease}
.site-header.is-compact .header-inner{height:56px}
.brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#0B1220;letter-spacing:-.2px;flex:none}
.brand-mark{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
  background:#0B1220;color:var(--brand);
  box-shadow:0 0 0 1px rgba(36,224,176,.45),0 4px 14px rgba(6,10,18,.25);
  flex:none;
}
.brand-mark svg{width:20px;height:20px}
.nav-menu{display:flex;align-items:center;gap:28px;margin:0 auto}
.nav-menu a{
  position:relative;font-size:15px;color:#31435A;padding:6px 0;
  transition:color .2s ease;
}
.nav-menu a::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:center;transition:transform .22s ease;
}
.nav-menu a:hover{color:#0B1220}
.nav-menu a:hover::after,.nav-menu a.active::after{transform:scaleX(1)}
.nav-menu a.active{color:#0B1220;font-weight:600}
.nav-actions{display:flex;align-items:center;gap:12px;flex:none}
.search{
  display:flex;align-items:center;gap:8px;width:220px;height:40px;padding:0 14px;
  border-radius:999px;background:#F3F6FA;border:1px solid transparent;
  transition:border-color .2s,box-shadow .2s,background .2s;
}
.search svg{width:16px;height:16px;color:#7A8CA0;flex:none}
.search input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14px;color:#0B1220}
.search input::placeholder{color:#8A9BAE}
.search:focus-within{border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(36,224,176,.22)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid #E6EBF2;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
  background:#fff;transition:border-color .2s;
}
.nav-toggle:hover{border-color:var(--brand)}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:#0B1220;transition:transform .22s,opacity .22s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.drawer{
  display:none;position:absolute;left:0;right:0;top:100%;
  background:var(--ink-800);border-top:1px solid var(--line);
  padding:20px 24px 26px;box-shadow:0 24px 40px rgba(0,0,0,.45);
}
.drawer.open{display:block}
.search-dark{width:100%;height:46px;background:rgba(255,255,255,.06);border-color:var(--line)}
.search-dark input{color:var(--text)}
.search-dark input::placeholder{color:#8194A8}
.search-dark svg{color:#8194A8}
.drawer-nav{display:flex;flex-direction:column;margin:16px 0 20px}
.drawer-nav a{padding:14px 2px;font-size:16px;color:var(--text);border-bottom:1px solid var(--line);transition:color .2s}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--brand)}
.drawer-cta{width:100%}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .24s ease,background .24s ease,border-color .24s ease,color .24s ease;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px}
.btn-primary{background:var(--brand);color:#04120E;box-shadow:0 6px 18px rgba(36,224,176,.22)}
.btn-primary:hover{
  transform:translateY(-1px);
  background:linear-gradient(12deg,#2BF3C0,#1FD5A6);
  box-shadow:var(--glow);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(36,224,176,.2)}
.btn-primary:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--brand)}
.btn-ghost:hover{border-color:var(--brand);box-shadow:0 0 0 1px rgba(36,224,176,.25);transform:translateY(-1px)}
.btn-text{background:none;border:0;padding:0;height:auto;color:var(--brand);display:inline-flex;align-items:center;gap:6px;font-weight:600}
.btn-text svg{transition:transform .22s ease}
.btn-text:hover svg{transform:translateX(4px)}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:76px 0 84px;background:var(--ink-900)}
.hero::before{
  content:"";position:absolute;width:820px;height:820px;right:-220px;top:-360px;border-radius:50%;
  background:radial-gradient(circle,rgba(36,224,176,.08),transparent 66%);pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:56px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  font-size:13px;color:var(--brand);background:rgba(36,224,176,.1);
  border:1px solid rgba(36,224,176,.28);margin-bottom:20px;
}
.hero h1{font-size:44px;line-height:1.18;font-weight:800;letter-spacing:-.5px;margin-bottom:18px}
.hero-sub{font-size:18px;line-height:1.7;color:#BFD2E2;font-weight:600;margin-bottom:16px}
.hero-lead{font-size:16px;line-height:1.95;color:var(--muted);max-width:600px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 30px}
.stats{display:flex;flex-wrap:wrap;gap:12px}
.stat{
  display:flex;flex-direction:column;gap:2px;padding:12px 18px;border-radius:14px;
  background:var(--card-bg);border:1px solid var(--line);backdrop-filter:var(--blur);
  transition:border-color .22s,transform .22s;
}
.stat:hover{border-color:rgba(36,224,176,.45);transform:translateY(-2px)}
.stat b{font-size:20px;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.3}
.stat span{font-size:12px;color:var(--muted);letter-spacing:.4px}
.hero-media{
  position:relative;max-width:380px;margin-left:auto;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);
}
.hero-media img{width:100%;aspect-ratio:9/16;object-fit:cover;transition:transform .4s ease}
.hero-media:hover img{transform:scale(1.03)}
.hero-tag{
  position:absolute;left:14px;bottom:14px;display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 12px;border-radius:var(--r-tag);font-size:12px;font-weight:700;
  color:#1A0A03;background:var(--brand-2);font-variant-numeric:tabular-nums;
}

/* ============ Sections ============ */
.section{padding:96px 0}
.section-alt{background:var(--ink-800);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;flex-wrap:wrap;margin-bottom:32px}
.section-title{
  position:relative;padding-left:16px;font-size:32px;line-height:1.3;font-weight:800;letter-spacing:-.3px;
}
.section-title::before{
  content:"";position:absolute;left:0;top:6px;width:4px;height:22px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 12px rgba(36,224,176,.6);
}
.section-desc{color:var(--muted);font-size:15px;max-width:560px;margin-top:10px;padding-left:16px}

/* ============ Scene Cards ============ */
.scene-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.scene-card{
  padding:26px;border-radius:var(--r-card);background:var(--card-bg);
  border:1px solid var(--line);backdrop-filter:var(--blur);
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.scene-card:hover{transform:translateY(-4px);border-color:rgba(36,224,176,.5);box-shadow:var(--shadow)}
.scene-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  color:var(--brand);background:rgba(36,224,176,.1);border:1px solid rgba(36,224,176,.3);
  margin-bottom:18px;
}
.scene-icon svg{width:22px;height:22px}
.scene-card h3{font-size:18px;line-height:1.5;margin-bottom:10px}
.scene-card p{font-size:15px;color:var(--muted);line-height:1.85}
.scene-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-tag);
  font-size:12px;color:var(--brand-3);border:1px solid rgba(61,139,255,.35);
  background:rgba(61,139,255,.08);
}

/* ============ Flow Steps ============ */
.flow{position:relative;margin-top:8px}
.flow::before{
  content:"";position:absolute;left:27px;top:14px;bottom:14px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,rgba(36,224,176,.9),rgba(36,224,176,.1));
}
.step{position:relative;padding-left:84px;padding-bottom:48px}
.step:last-child{padding-bottom:0}
.step-num{
  position:absolute;left:0;top:0;width:56px;height:56px;border-radius:50%;
  display:grid;place-items:center;font-size:16px;font-weight:800;color:var(--brand);
  background:var(--ink-800);border:1px solid rgba(36,224,176,.4);
  font-variant-numeric:tabular-nums;
  transition:box-shadow .25s ease,color .25s ease;
}
.step:hover .step-num{box-shadow:0 0 0 1px rgba(36,224,176,.55),0 0 22px rgba(36,224,176,.45);color:#fff}
.step-body h3{font-size:22px;line-height:1.45;margin-bottom:10px;font-weight:700}
.step-body p{font-size:15px;color:var(--muted);max-width:720px;line-height:1.95}
.step-figure{
  margin-top:18px;max-width:560px;border-radius:14px;overflow:hidden;
  border:1px solid var(--line);aspect-ratio:16/9;background:var(--ink-700);
}
.step-figure img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.step:hover .step-figure img{transform:scale(1.03)}

/* ============ Week Grid ============ */
.week-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.day-card{
  padding:20px;border-radius:16px;background:var(--card-bg);border:1px solid var(--line);
  backdrop-filter:var(--blur);
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.day-card:hover{transform:translateY(-3px);border-color:rgba(36,224,176,.45);box-shadow:var(--shadow)}
.day-tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-tag);
  font-size:12px;font-weight:700;color:#04120E;background:rgba(36,224,176,.92);margin-bottom:12px;
}
.day-tag.hot{background:var(--brand-2);color:#1A0A03}
.day-tag.rest{background:rgba(255,255,255,.12);color:var(--muted)}
.day-card h3{font-size:17px;line-height:1.5;margin-bottom:6px;font-weight:700}
.day-card p{font-size:14px;color:var(--muted);line-height:1.8}

/* ============ Check List ============ */
.check-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.check-item{
  display:flex;gap:14px;padding:22px;border-radius:14px;
  background:rgba(255,255,255,.03);border:1px solid var(--line);
  transition:border-color .24s ease,transform .24s ease;
}
.check-item:hover{border-color:rgba(36,224,176,.4);transform:translateY(-2px)}
.check-mark{
  width:12px;height:12px;border-radius:3px;background:var(--brand);flex:none;margin-top:11px;
  box-shadow:0 0 12px rgba(36,224,176,.55);
}
.check-item h3{font-size:17px;line-height:1.5;margin-bottom:6px;font-weight:700}
.check-item p{font-size:14px;color:var(--muted);line-height:1.85}

/* ============ FAQ ============ */
.faq-list{max-width:900px}
.faq-item{
  margin-bottom:12px;border-radius:14px;overflow:hidden;
  background:var(--card-bg);border:1px solid var(--line);backdrop-filter:var(--blur);
  transition:border-color .24s ease,box-shadow .24s ease;
}
.faq-item.open{border-color:rgba(36,224,176,.42);box-shadow:0 0 0 1px rgba(36,224,176,.16)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:64px;padding:14px 22px;text-align:left;font-size:17px;font-weight:600;color:var(--text);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--brand)}
.faq-icon{
  position:relative;width:22px;height:22px;flex:none;color:var(--muted);
  transition:transform .24s ease,color .24s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px}
.faq-item.open .faq-icon{transform:rotate(45deg);color:var(--brand)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.open .faq-a{max-height:360px}
.faq-a p{padding:0 22px 22px;margin:0;font-size:16px;line-height:1.9;color:var(--muted)}

/* ============ Consult ============ */
.consult-panel{
  display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:44px;
  padding:44px;border-radius:22px;background:var(--card-bg);border:1px solid var(--line);
  backdrop-filter:var(--blur);box-shadow:var(--shadow);
}
.consult-copy h2{font-size:30px;line-height:1.35;font-weight:800;margin-bottom:14px;letter-spacing:-.3px}
.consult-copy p{color:var(--muted);font-size:15px;line-height:1.95}
.consult-points{margin-top:22px;display:flex;flex-direction:column;gap:10px}
.consult-points li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:#C6D6E4}
.consult-points li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);margin-top:11px;flex:none;box-shadow:0 0 10px rgba(36,224,176,.6)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column}
.field.full{grid-column:1 / -1}
.field label{font-size:13px;color:var(--muted);margin-bottom:8px}
.field input,.field select{
  height:48px;width:100%;padding:0 14px;border-radius:12px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text);
  transition:border-color .2s,box-shadow .2s;
}
.field input::placeholder{color:#6C7F92}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(36,224,176,.18);
}
.field select option{color:#0B1220}
.form-note{font-size:12px;color:#6C7F92;margin-top:14px;line-height:1.8}

/* ============ Footer ============ */
.site-footer{background:var(--ink-900);border-top:1px solid var(--line);padding:72px 0 32px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;margin-bottom:14px}
.footer-col p{font-size:14px;color:var(--muted);line-height:1.9;max-width:340px}
.footer-title{font-size:14px;font-weight:700;letter-spacing:.5px;color:#fff;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--muted);transition:color .2s ease,transform .2s ease}
.footer-links a:hover{color:var(--brand);transform:translateX(2px)}
.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--muted)}
.footer-contact b{color:var(--text);font-weight:600}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  font-size:13px;color:#6C7F92;
}

/* ============ Mobile sticky bar ============ */
.mobile-bar{display:none}

/* ============ Responsive ============ */
@media (max-width:1024px){
  .nav-menu{display:none}
  .search{display:none}
  .nav-toggle{display:flex}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero h1{font-size:36px}
  .hero-media{margin:0 auto;max-width:320px}
  .section{padding:72px 0}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .week-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .check-list{grid-template-columns:1fr}
  .consult-panel{grid-template-columns:1fr;gap:30px;padding:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .hero{padding:56px 0 64px}
  .hero h1{font-size:32px}
  .section-title{font-size:26px}
  .section-title::before{height:19px;top:5px}
  .step{padding-left:66px;padding-bottom:38px}
  .step-num{width:42px;height:42px;font-size:14px}
  .flow::before{left:20px}
  .step-body h3{font-size:19px}
  .scene-grid{grid-template-columns:1fr}
  .week-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
}
@media (max-width:640px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  body{padding-bottom:80px}
  .header-inner{height:60px}
  .site-header.is-compact .header-inner{height:54px}
  .brand{font-size:15px}
  .brand-mark{width:32px;height:32px}
  .hero h1{font-size:28px;line-height:1.25}
  .hero-sub{font-size:16px}
  .hero-actions .btn{flex:1;min-width:140px}
  .stat{padding:10px 14px}
  .stat b{font-size:17px}
  .consult-panel{padding:24px}
  .consult-copy h2{font-size:24px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .mobile-bar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:70;
    height:64px;padding:8px 16px;gap:10px;align-items:center;
    background:rgba(11,18,32,.94);border-top:1px solid var(--line);
    backdrop-filter:blur(14px);
  }
  .mobile-bar .btn{width:100%;height:48px}
}