/* roulang page: index */
:root{
  --brand:#E8452B;
  --brand-dark:#B62F1C;
  --brand-soft:#FDEDE9;
  --accent:#16C79A;
  --accent-soft:#E4F8F2;
  --amber:#F2B24C;
  --ink:#0C0D10;
  --ink-2:#16181F;
  --bg:#FAF8F5;
  --card:#FFFFFF;
  --text:#1A1C22;
  --muted:#6B6F7A;
  --line:rgba(12,13,16,.08);
  --line-dark:rgba(255,255,255,.10);
  --r-sm:12px;
  --r-md:14px;
  --r-lg:18px;
  --r-pill:9999px;
  --sh-soft:0 8px 24px rgba(12,13,16,.06);
  --sh-mid:0 12px 32px rgba(12,13,16,.10);
  --sh-dark:0 16px 48px rgba(0,0,0,.45);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(232,69,43,.35);outline-offset:2px;border-radius:6px}
::selection{background:var(--brand);color:#fff}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 32px}}

/* ---------- 悬浮胶囊导航 ---------- */
.nav-shell{
  position:fixed;top:0;left:0;right:0;z-index:80;
  padding:16px 0;
  transition:padding .28s var(--ease);
}
.nav-pill{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  max-width:var(--container);margin:0 auto;
  padding:10px 12px 10px 22px;
  border-radius:var(--r-pill);
  border:1px solid var(--line-dark);
  background:rgba(12,13,16,.46);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  transition:background .28s var(--ease),box-shadow .28s var(--ease),padding .28s var(--ease);
}
.nav-shell.nav-scrolled{padding:10px 0}
.nav-shell.nav-scrolled .nav-pill{
  background:rgba(12,13,16,.86);
  box-shadow:var(--sh-dark);
  padding:8px 12px 8px 20px;
}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;letter-spacing:-.01em;white-space:nowrap}
.brand-mark{
  width:30px;height:30px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--brand) 0%,#F4703F 100%);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:800;color:#fff;
}
.nav-links{display:none;align-items:center;gap:6px}
@media(min-width:1024px){.nav-links{display:flex}}
.nav-link{
  position:relative;padding:8px 14px;border-radius:var(--r-pill);
  font-size:15px;color:rgba(255,255,255,.78);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:2px;width:0;height:2px;
  background:var(--brand);border-radius:2px;transform:translateX(-50%);
  transition:width .24s var(--ease);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.08)}
.nav-link:hover::after{width:8px}
.nav-link.active{color:#fff}
.nav-link.active::after{width:8px}
.nav-actions{display:flex;align-items:center;gap:10px}
.btn-login{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 22px;border-radius:var(--r-pill);
  background:var(--brand);color:#fff;font-size:15px;font-weight:600;
  transition:background .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-login:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 10px 22px rgba(232,69,43,.35)}
.nav-burger{
  display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  width:42px;height:42px;border-radius:var(--r-pill);
  border:1px solid var(--line-dark);background:rgba(255,255,255,.06);
}
.nav-burger span{display:block;width:17px;height:2px;background:#fff;margin:0 auto;border-radius:2px;transition:transform .24s var(--ease),opacity .24s var(--ease)}
@media(min-width:1024px){.nav-burger{display:none}}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,340px);z-index:90;
  background:var(--ink-2);border-left:1px solid var(--line-dark);
  transform:translateX(104%);transition:transform .32s var(--ease);
  padding:26px 22px;display:flex;flex-direction:column;gap:26px;
  box-shadow:var(--sh-dark);
}
.nav-drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-close{width:38px;height:38px;border-radius:var(--r-pill);border:1px solid var(--line-dark);color:#fff;font-size:18px;line-height:1}
.drawer-links{display:flex;flex-direction:column;gap:6px}
.drawer-links a{padding:13px 14px;border-radius:var(--r-sm);color:rgba(255,255,255,.82);font-size:16px;transition:background .2s var(--ease),color .2s var(--ease)}
.drawer-links a:hover,.drawer-links a.active{background:rgba(255,255,255,.08);color:#fff}
.drawer-mask{position:fixed;inset:0;background:rgba(6,7,10,.6);z-index:85;opacity:0;pointer-events:none;transition:opacity .3s var(--ease)}
.drawer-mask.open{opacity:1;pointer-events:auto}

/* ---------- Hero ---------- */
.hero{
  position:relative;min-height:80vh;display:flex;flex-direction:column;justify-content:flex-end;
  background:var(--ink);overflow:hidden;padding-top:140px;
}
.hero-media{position:absolute;inset:0}
.hero-media img{width:100%;height:100%;object-fit:cover;opacity:.68;transform:scale(1.03)}
.hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(12,13,16,.62) 0%,rgba(12,13,16,.10) 34%,rgba(12,13,16,.62) 72%,var(--ink) 100%);
}
.hero-inner{position:relative;z-index:2;padding-bottom:64px;max-width:860px}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.08);
  color:#fff;font-size:13px;letter-spacing:.02em;
  animation:fadeUp .7s var(--ease) both;
}
.hero-tag i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:block}
.hero-title{
  margin-top:22px;
  font-size:clamp(34px,6vw,64px);font-weight:800;line-height:1.12;
  letter-spacing:-.02em;color:#fff;
  animation:fadeUp .7s var(--ease) .08s both;
}
.hero-title em{font-style:normal;color:var(--amber)}
.hero-sub{
  margin-top:18px;max-width:560px;
  font-size:clamp(15px,1.6vw,18px);line-height:1.7;color:rgba(255,255,255,.76);
  animation:fadeUp .7s var(--ease) .16s both;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;animation:fadeUp .7s var(--ease) .24s both}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 30px;font-size:15px;font-weight:600;
  border-radius:var(--r-pill);border:1px solid transparent;
  transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 14px 30px rgba(232,69,43,.34)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.42)}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;transform:translateY(-2px)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#000;transform:translateY(-2px);box-shadow:var(--sh-mid)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-square{border-radius:var(--r-sm)}
.hero-bar{
  position:relative;z-index:2;
  border-top:1px solid var(--line-dark);
  background:rgba(12,13,16,.55);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.hero-bar-inner{
  display:flex;flex-wrap:wrap;gap:10px 34px;padding:14px 20px;
  font-size:12.5px;color:rgba(255,255,255,.66);letter-spacing:.02em;
}
@media(min-width:768px){.hero-bar-inner{padding:14px 32px}}
.hero-bar-inner span{display:inline-flex;align-items:center;gap:7px}
.hero-bar-inner span::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--accent);opacity:.85}

@keyframes fadeUp{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:translateY(0)}}

/* ---------- 通用板块 ---------- */
.section{padding:64px 0}
@media(min-width:768px){.section{padding:96px 0}}
.section-tight{padding:44px 0}
@media(min-width:768px){.section-tight{padding:64px 0}}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:18px;flex-wrap:wrap;margin-bottom:32px;
}
.eyebrow{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.14em;
  color:var(--brand);text-transform:uppercase;margin-bottom:10px;
}
.section-title{font-size:clamp(24px,3.2vw,34px);font-weight:800;letter-spacing:-.02em;line-height:1.25}
.section-desc{margin-top:10px;color:var(--muted);font-size:15px;max-width:600px}
.link-all{
  display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--brand);
  padding-bottom:2px;border-bottom:1px solid rgba(232,69,43,.3);
  transition:color .2s var(--ease),border-color .2s var(--ease),gap .2s var(--ease);
}
.link-all:hover{color:var(--brand-dark);border-color:var(--brand-dark);gap:10px}
.badge{
  display:inline-flex;align-items:center;
  padding:4px 11px;border-radius:var(--r-pill);
  font-size:11.5px;font-weight:600;letter-spacing:.02em;
  background:var(--brand-soft);color:var(--brand);
}
.badge-accent{background:var(--accent-soft);color:#0E8E6E}
.badge-amber{background:rgba(242,178,76,.18);color:#8A5A0B}
.badge-dark{background:rgba(255,255,255,.10);color:rgba(255,255,255,.82)}

/* ---------- 横滑片库 ---------- */
.rail-wrap{position:relative}
.rail-wrap::before,.rail-wrap::after{
  content:"";position:absolute;top:0;bottom:0;width:56px;pointer-events:none;z-index:3;
}
.rail-wrap::before{left:0;background:linear-gradient(90deg,var(--bg),rgba(250,248,245,0))}
.rail-wrap::after{right:0;background:linear-gradient(270deg,var(--bg),rgba(250,248,245,0))}
.rail{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 20px 22px;scrollbar-width:none;
}
.rail::-webkit-scrollbar{display:none}
@media(min-width:768px){.rail{padding-left:32px;padding-right:32px}}
.rail-item{
  flex:0 0 auto;width:78vw;max-width:300px;scroll-snap-align:start;
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  background:var(--card);border:1px solid var(--line);box-shadow:var(--sh-soft);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.rail-item:hover{transform:translateY(-4px);box-shadow:var(--sh-mid)}
@media(min-width:768px){.rail-item{width:290px}}
.rail-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--ink)}
.rail-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.rail-item:hover .rail-cover img{transform:scale(1.03)}
.rail-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(12,13,16,.05) 30%,rgba(12,13,16,.82) 100%);
}
.rail-item:hover .rail-cover::before{
  content:"";position:absolute;inset:0;z-index:2;
  background:linear-gradient(115deg,rgba(255,255,255,0) 35%,rgba(255,255,255,.08) 50%,rgba(255,255,255,0) 65%);
  animation:sheen .7s var(--ease);
}
@keyframes sheen{from{transform:translateX(-60%)}to{transform:translateX(60%)}}
.rail-badge{position:absolute;top:12px;left:12px;z-index:2}
.rail-cover-title{
  position:absolute;left:14px;right:14px;bottom:12px;z-index:2;
  color:#fff;font-size:15.5px;font-weight:700;line-height:1.4;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}
.rail-note{padding:13px 16px 16px;font-size:13.5px;color:var(--muted);line-height:1.65;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}

/* ---------- 热播推荐 ---------- */
.feature-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:1024px){.feature-grid{grid-template-columns:7fr 5fr}}
.feature-main{
  position:relative;display:block;border-radius:var(--r-lg);overflow:hidden;
  background:var(--ink);box-shadow:var(--sh-soft);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.feature-main:hover{transform:translateY(-4px);box-shadow:var(--sh-mid)}
.feature-main .cover{position:relative;aspect-ratio:16/9;overflow:hidden}
.feature-main .cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.feature-main:hover .cover img{transform:scale(1.03)}
.feature-main .cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(12,13,16,.08) 40%,rgba(12,13,16,.9) 100%)}
.feature-main .body{position:absolute;left:0;right:0;bottom:0;padding:26px 26px 24px;z-index:2;color:#fff}
.feature-main .body h3{font-size:clamp(19px,2.4vw,24px);font-weight:800;line-height:1.35;margin-top:12px}
.feature-main .body p{margin-top:10px;font-size:14.5px;color:rgba(255,255,255,.72);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rank-panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px 22px 10px;box-shadow:var(--sh-soft);
}
.rank-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.rank-head h3{font-size:17px;font-weight:700}
.rank-list{margin-top:6px}
.rank-item{position:relative;display:flex;align-items:center;gap:14px;padding:15px 0;border-bottom:1px solid var(--line)}
.rank-item:last-child{border-bottom:none}
.rank-num{
  flex:0 0 auto;width:44px;font-size:40px;font-weight:800;line-height:1;
  color:var(--ink);opacity:.10;letter-spacing:-.04em;
}
.rank-body{min-width:0;flex:1}
.rank-title{
  font-size:15.5px;font-weight:600;line-height:1.5;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  transition:color .2s var(--ease);
}
.rank-item:hover .rank-title{color:var(--brand)}
.rank-sub{margin-top:3px;font-size:12.5px;color:var(--muted)}
@media(max-width:1023px){.rank-num{width:36px;font-size:32px}}

/* ---------- 数据条 ---------- */
.stat-strip{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-soft);
  display:grid;grid-template-columns:repeat(2,1fr);
}
@media(min-width:768px){.stat-strip{grid-template-columns:repeat(4,1fr)}}
.stat-cell{padding:26px 24px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.stat-strip .stat-cell:nth-child(2n){border-right:none}
@media(min-width:768px){
  .stat-strip .stat-cell{border-bottom:none}
  .stat-strip .stat-cell:nth-child(2n){border-right:1px solid var(--line)}
  .stat-strip .stat-cell:last-child{border-right:none}
}
.stat-num{font-size:clamp(24px,3vw,32px);font-weight:800;letter-spacing:-.02em;color:var(--brand);font-variant-numeric:tabular-nums}
.stat-label{margin-top:6px;font-size:13.5px;color:var(--muted)}

/* ---------- 最新信息（CMS 列表） ---------- */
.post-grid{display:grid;grid-template-columns:1fr;gap:22px}
@media(min-width:768px){.post-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.post-grid{grid-template-columns:repeat(3,1fr)}}
.post-card{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:18px 18px 16px;box-shadow:var(--sh-soft);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-mid);border-color:rgba(232,69,43,.22)}
.post-thumb{border-radius:var(--r-md);overflow:hidden;aspect-ratio:16/9;margin-bottom:14px;background:var(--bg)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.post-card:hover .post-thumb img{transform:scale(1.03)}
.post-top{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.post-title{
  font-size:16.5px;font-weight:700;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s var(--ease);
}
.post-card:hover .post-title{color:var(--brand)}
.post-sum{
  margin-top:9px;font-size:13.5px;line-height:1.7;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  margin-top:auto;padding-top:14px;display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:12.5px;color:var(--muted);
}
.post-meta time{font-variant-numeric:tabular-nums;letter-spacing:.01em}
.empty-state{
  border:1px dashed rgba(12,13,16,.18);border-radius:var(--r-lg);
  background:var(--card);padding:52px 24px;text-align:center;
}
.empty-state strong{display:block;font-size:17px;font-weight:700}
.empty-state p{margin-top:8px;color:var(--muted);font-size:14.5px}
.empty-state .btn{margin-top:20px}

/* ---------- 深色分区大卡 ---------- */
.dark-band{background:var(--ink);color:#fff}
.dark-band .section-title{color:#fff}
.dark-band .section-desc{color:rgba(255,255,255,.62)}
.dark-band .eyebrow{color:var(--accent)}
.zone-grid{display:grid;grid-template-columns:1fr;gap:22px}
@media(min-width:768px){.zone-grid{grid-template-columns:repeat(2,1fr)}}
.zone-card{
  background:var(--ink-2);border:1px solid var(--line-dark);border-radius:var(--r-lg);
  padding:28px 26px;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.zone-card:hover{transform:translateY(-4px);border-color:rgba(232,69,43,.5);box-shadow:var(--sh-dark)}
.zone-top{display:flex;align-items:center;justify-content:space-between;gap:14px}
.zone-index{font-size:13px;font-weight:700;letter-spacing:.16em;color:rgba(255,255,255,.34)}
.zone-card h3{margin-top:16px;font-size:21px;font-weight:800;letter-spacing:-.01em}
.zone-card p{margin-top:10px;font-size:14.5px;line-height:1.75;color:rgba(255,255,255,.62)}
.zone-links{margin-top:20px;border-top:1px solid var(--line-dark);padding-top:8px}
.zone-links a{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 0;border-bottom:1px solid var(--line-dark);
  font-size:14.5px;color:rgba(255,255,255,.8);
  transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.zone-links a:last-child{border-bottom:none}
.zone-links a:hover{color:var(--brand);padding-left:6px}
.zone-links a span{color:rgba(255,255,255,.3);font-size:13px}

/* ---------- FAQ + CTA ---------- */
.faq-cta{display:grid;grid-template-columns:1fr;gap:26px}
@media(min-width:1024px){.faq-cta{grid-template-columns:7fr 5fr;align-items:start}}
.faq-list{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-soft);overflow:hidden}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:none}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;text-align:left;
  font-size:16.5px;font-weight:600;line-height:1.55;color:var(--text);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.faq-q:hover{color:var(--brand);background:rgba(232,69,43,.03)}
.faq-icon{
  flex:0 0 auto;position:relative;width:20px;height:20px;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;
  transform:translate(-50%,-50%);transition:transform .26s var(--ease),opacity .26s var(--ease);
}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px}
.faq-item.open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .32s var(--ease);
}
.faq-a p{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--muted)}
.cta-card{
  background:linear-gradient(160deg,#16181F 0%,#0C0D10 100%);
  border:1px solid var(--line-dark);border-radius:var(--r-lg);
  padding:34px 30px;color:#fff;box-shadow:var(--sh-dark);
  position:relative;overflow:hidden;
}
.cta-card::after{
  content:"";position:absolute;right:-70px;top:-70px;width:200px;height:200px;border-radius:50%;
  background:radial-gradient(circle,rgba(232,69,43,.42),rgba(232,69,43,0) 70%);
}
.cta-card h3{position:relative;z-index:1;font-size:23px;font-weight:800;line-height:1.4}
.cta-card p{position:relative;z-index:1;margin-top:12px;font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.66)}
.cta-card .btn{position:relative;z-index:1;margin-top:24px;width:100%}
.cta-list{position:relative;z-index:1;margin-top:20px;display:flex;flex-wrap:wrap;gap:8px}
.cta-list span{font-size:12.5px;padding:5px 12px;border-radius:var(--r-pill);border:1px solid var(--line-dark);color:rgba(255,255,255,.7)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#fff;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:2fr 1fr 1fr 1.2fr}}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800}
.footer-brand .brand-mark{width:32px;height:32px}
.footer-about{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.58);max-width:340px}
.footer-col h4{font-size:14px;font-weight:700;letter-spacing:.04em;color:#fff}
.footer-col ul{margin-top:16px;display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.6);transition:color .2s var(--ease)}
.footer-col a:hover{color:var(--brand)}
.footer-col p{font-size:14px;color:rgba(255,255,255,.6);line-height:1.9}
.footer-bottom{
  margin-top:52px;border-top:1px solid var(--line-dark);
  padding:22px 0 30px;display:flex;flex-wrap:wrap;gap:10px 22px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.42);
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
  .rail-item:hover,.post-card:hover,.zone-card:hover,.feature-main:hover,.btn:hover{transform:none}
}

/* roulang page: article */
:root{
  --brand:#E8452B;
  --brand-dark:#B62F1C;
  --brand-soft:#FDEDE9;
  --accent:#16C79A;
  --accent-soft:#E4F8F2;
  --amber:#F2B24C;
  --ink:#0C0D10;
  --ink-2:#16181F;
  --paper:#FAF8F5;
  --card:#FFFFFF;
  --text:#1A1C22;
  --sub:#2A2D35;
  --muted:#6B6F7A;
  --line:rgba(12,13,16,.08);
  --line-dark:rgba(255,255,255,.10);
  --r-sm:12px;
  --r:14px;
  --r-lg:18px;
  --shadow:0 8px 24px rgba(12,13,16,.06);
  --shadow-lg:0 16px 48px rgba(12,13,16,.14);
  --shadow-dark:0 16px 48px rgba(0,0,0,.45);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
::selection{background:var(--brand);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-thumb{background:rgba(12,13,16,.18);border-radius:9999px;border:2px solid var(--paper)}
::-webkit-scrollbar-track{background:transparent}
.container{max-width:1240px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}
a:focus-visible,button:focus-visible{outline:3px solid rgba(232,69,43,.35);outline-offset:2px;border-radius:8px}

/* ---------- 悬浮胶囊导航 ---------- */
.nav-shell{position:fixed;top:0;left:0;right:0;z-index:60;padding:12px 20px;transition:padding .3s var(--ease)}
.nav-shell.is-scrolled{padding:8px 20px}
.nav-pill{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  width:100%;max-width:1240px;
  margin-left:auto !important;margin-right:auto !important;
  padding:10px 12px 10px 18px;
  border-radius:9999px;
  background:rgba(255,255,255,.78);
  backdrop-filter:saturate(140%) blur(16px);
  -webkit-backdrop-filter:saturate(140%) blur(16px);
  border:1px solid var(--line);
  box-shadow:0 8px 24px rgba(12,13,16,.06);
  transition:background .3s var(--ease),box-shadow .3s var(--ease);
}
.nav-shell.is-scrolled .nav-pill{background:rgba(255,255,255,.95);box-shadow:0 14px 36px rgba(12,13,16,.12)}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:-.01em;white-space:nowrap}
.brand-mark{display:grid;place-items:center;width:32px;height:32px;border-radius:10px;background:var(--brand);color:#fff;font-size:16px;font-weight:800;flex:0 0 auto}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-link{position:relative;padding:8px 14px;border-radius:9999px;font-size:15px;font-weight:500;color:var(--muted);transition:color .22s var(--ease),background .22s var(--ease)}
.nav-link::after{content:"";position:absolute;left:50%;bottom:2px;width:8px;height:2px;border-radius:2px;background:var(--brand);transform:translateX(-50%) scaleX(0);transition:transform .25s var(--ease)}
.nav-link:hover{color:var(--text);background:rgba(12,13,16,.04)}
.nav-link:hover::after{transform:translateX(-50%) scaleX(1)}
.nav-link.active{color:var(--brand);font-weight:700}
.nav-link.active::after{transform:translateX(-50%) scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn-login{
  display:inline-flex;align-items:center;justify-content:center;
  height:42px;padding:0 22px;border-radius:9999px;
  background:var(--brand);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 8px 20px rgba(232,69,43,.26);
  transition:background .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-login:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 12px 26px rgba(232,69,43,.34)}
.nav-burger{display:none;width:40px;height:40px;border-radius:9999px;border:1px solid var(--line);background:#fff;flex-direction:column;justify-content:center;align-items:center;gap:4px;padding:0}
.nav-burger span{display:block;width:16px;height:2px;border-radius:2px;background:var(--ink);transition:transform .25s var(--ease)}
@media (max-width:899px){
  .nav-links{display:none}
  .nav-burger{display:flex}
}
@media (max-width:600px){
  .btn-login{display:none}
  .nav-pill{padding:8px 10px 8px 14px}
  .brand{font-size:15px}
}

/* ---------- 移动端抽屉 ---------- */
.nav-drawer{position:fixed;inset:0;z-index:80;visibility:hidden;pointer-events:none}
.nav-drawer.open{visibility:visible;pointer-events:auto}
.nav-drawer-mask{position:absolute;inset:0;background:rgba(12,13,16,.55);opacity:0;transition:opacity .3s var(--ease)}
.nav-drawer.open .nav-drawer-mask{opacity:1}
.nav-drawer-panel{
  position:absolute;top:0;right:0;height:100%;width:84%;max-width:340px;
  background:#fff;padding:24px 22px;display:flex;flex-direction:column;gap:8px;
  transform:translateX(102%);transition:transform .34s var(--ease);
  box-shadow:-20px 0 60px rgba(0,0,0,.24);
}
.nav-drawer.open .nav-drawer-panel{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
.drawer-close{width:38px;height:38px;border-radius:9999px;border:1px solid var(--line);font-size:20px;line-height:1;display:grid;place-items:center;color:var(--muted);transition:color .2s var(--ease),border-color .2s var(--ease)}
.drawer-close:hover{color:var(--brand);border-color:var(--brand)}
.drawer-links{display:flex;flex-direction:column}
.drawer-links a{padding:14px 4px;font-size:16px;font-weight:600;border-bottom:1px solid var(--line);transition:color .2s var(--ease)}
.drawer-links a:hover,.drawer-links a.active{color:var(--brand)}
.drawer-cta{margin-top:auto}
.drawer-note{font-size:13px;color:var(--muted);line-height:1.7;margin-bottom:14px}

/* ---------- 文章头部 ---------- */
.article-hero{position:relative;padding:132px 0 60px;background:var(--ink);color:#fff;overflow:hidden}
.article-hero .hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;opacity:.42}
.article-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(12,13,16,.88) 0%,rgba(12,13,16,.60) 45%,rgba(12,13,16,.94) 100%)}
.article-hero .container{position:relative;z-index:1}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.62);margin-bottom:20px}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px;max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.breadcrumb li+li::before{content:"/";color:rgba(255,255,255,.32)}
.breadcrumb a:hover{color:#fff}
.breadcrumb li[aria-current]{color:rgba(255,255,255,.92)}
.article-title{font-size:clamp(30px,5vw,52px);font-weight:800;line-height:1.22;letter-spacing:-.02em;max-width:940px;color:#fff}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:24px;font-size:13px;color:rgba(255,255,255,.72)}
.meta-badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:9999px;background:rgba(232,69,43,.18);border:1px solid rgba(232,69,43,.5);color:#FFB3A4;font-weight:600;font-size:12px}
.meta-dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.34)}
.article-cover{max-width:1160px;margin:-38px auto 0;padding:0 20px;position:relative;z-index:2}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-lg);box-shadow:0 24px 60px rgba(12,13,16,.26)}
@media (min-width:768px){.article-cover{padding:0 32px}}

/* ---------- 正文布局 ---------- */
.article-layout{max-width:1240px;margin:0 auto;padding:48px 20px 0;display:grid;grid-template-columns:minmax(0,1fr);gap:40px}
@media (min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,760px) 248px;justify-content:center;gap:56px;padding:64px 32px 0}
}
.article-main{min-width:0}

/* 目录 */
.toc-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);padding:4px 18px;margin-bottom:30px}
.toc-wrap summary{cursor:pointer;padding:14px 0;font-weight:600;font-size:15px;display:flex;justify-content:space-between;align-items:center;list-style:none}
.toc-wrap summary::-webkit-details-marker{display:none}
.toc-wrap summary::after{content:"+";color:var(--brand);font-size:20px;font-weight:700;line-height:1}
.toc-wrap[open] summary::after{content:"−"}
@media (min-width:1024px){.toc-mobile{display:none}}
.toc-list{display:flex;flex-direction:column;gap:2px;padding:0 0 14px}
.toc-list li{font-size:14px}
.toc-list a{display:block;padding:7px 0 7px 12px;border-left:2px solid var(--line);color:var(--muted);line-height:1.55;transition:color .2s var(--ease),border-color .2s var(--ease),padding-left .2s var(--ease)}
.toc-list a:hover{color:var(--brand);border-color:var(--brand);padding-left:16px}
.toc-list li.is-sub a{padding-left:26px;font-size:13px}

.article-aside{display:none}
@media (min-width:1024px){
  .article-aside{display:flex;flex-direction:column;gap:20px;position:sticky;top:104px;align-self:start}
}
.toc-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:20px;box-shadow:var(--shadow)}
.toc-title{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--muted);margin-bottom:12px}
.aside-card{background:var(--ink);color:#fff;border-radius:var(--r-lg);padding:22px;box-shadow:var(--shadow-dark)}
.aside-label{font-size:12px;font-weight:700;letter-spacing:.1em;color:var(--amber);margin-bottom:10px}
.aside-text{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);margin-bottom:16px}

/* 正文排版 */
.article-body{font-size:17px;line-height:1.9;color:var(--text);word-break:break-word}
.article-body p{margin:0 0 1.2em;color:var(--sub)}
.article-body h2{position:relative;font-size:clamp(22px,3.4vw,28px);font-weight:800;line-height:1.45;letter-spacing:-.01em;margin:2.2em 0 .9em;padding-left:16px;scroll-margin-top:110px}
.article-body h2::before{content:"";position:absolute;left:0;top:.28em;height:1.05em;width:3px;border-radius:3px;background:var(--brand)}
.article-body h3{font-size:20px;font-weight:700;line-height:1.5;margin:1.7em 0 .7em;color:var(--text);scroll-margin-top:110px}
.article-body ul,.article-body ol{padding-left:1.35em;margin:0 0 1.2em}
.article-body ul li{list-style:disc;margin:.5em 0}
.article-body ol li{list-style:decimal;margin:.5em 0}
.article-body blockquote{margin:1.6em 0;padding:16px 20px;background:var(--brand-soft);border-left:3px solid var(--brand);border-radius:0 var(--r-sm) var(--r-sm) 0;color:#3A3E48}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-sm);margin:1.8em auto}
.article-body figure{margin:1.8em 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(232,69,43,.35);transition:border-color .2s var(--ease),color .2s var(--ease)}
.article-body a:hover{color:var(--brand-dark);border-color:var(--brand-dark)}
.article-body strong{font-weight:700;color:var(--text)}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:1.6em 0;background:#fff;border-radius:var(--r-sm);overflow:hidden}
.article-body th,.article-body td{border-bottom:1px solid var(--line);padding:11px 14px;text-align:left}
.article-body thead th{background:#F2EFEA;font-weight:700;color:var(--text)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.2em 0}
.article-body code{background:#F2EFEA;padding:2px 6px;border-radius:6px;font-size:.92em}
.article-body>p:first-of-type{font-size:17.5px;color:var(--text)}

/* 空态 */
.empty-state{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow);padding:60px 28px;text-align:center}
.empty-icon{width:64px;height:64px;margin:0 auto 22px;border-radius:20px;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;font-size:26px;font-weight:800}
.empty-state h2{font-size:24px;font-weight:800;margin-bottom:10px}
.empty-state p{color:var(--muted);font-size:15px;max-width:44ch;margin:0 auto 26px}

/* 快捷帮助 */
.quick-help{display:flex;flex-wrap:wrap;gap:12px 20px;align-items:center;margin-top:48px;padding:18px 22px;background:var(--brand-soft);border:1px solid rgba(232,69,43,.16);border-radius:var(--r)}
.quick-help-label{font-size:13px;font-weight:700;color:var(--brand-dark);flex:0 0 auto}
.quick-help-list{display:flex;flex-wrap:wrap;gap:10px 22px}
.quick-help-list a{font-size:14px;color:var(--sub);border-bottom:1px dashed rgba(12,13,16,.2);padding-bottom:1px;transition:color .2s var(--ease),border-color .2s var(--ease)}
.quick-help-list a:hover{color:var(--brand);border-color:var(--brand)}

/* 相关推荐 */
.related{margin-top:64px;padding-top:40px;border-top:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px}
.section-head h2{font-size:clamp(20px,2.6vw,24px);font-weight:800;letter-spacing:-.01em}
.link-more{font-size:14px;font-weight:600;color:var(--brand);transition:color .2s var(--ease)}
.link-more:hover{color:var(--brand-dark)}
.related-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:640px){.related-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.related-grid{grid-template-columns:repeat(3,1fr)}}
.related-card{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease)}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(232,69,43,.28)}
.related-card img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s var(--ease)}
.related-card:hover img{transform:scale(1.03)}
.related-body{padding:16px 18px 20px}
.related-body h3{font-size:16px;font-weight:700;line-height:1.5;margin:10px 0 6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-body p{font-size:13px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.tag{display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:9999px;font-size:11px;font-weight:600;letter-spacing:.02em}
.tag-brand{background:var(--brand-soft);color:var(--brand-dark)}
.tag-accent{background:var(--accent-soft);color:#0E8F6E}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:9999px;border:1px solid transparent;font-size:15px;font-weight:600;line-height:1;transition:transform .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease)}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px rgba(232,69,43,.28)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px)}
.btn-outline{background:#fff;border-color:rgba(12,13,16,.16);color:var(--text)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--muted);padding:0 12px}
.btn-ghost:hover{color:var(--brand)}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{background:#F2EFEA;transform:translateY(-2px)}
.btn-line{border-color:rgba(255,255,255,.36);color:#fff}
.btn-line:hover{border-color:#fff;background:rgba(255,255,255,.08);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.back-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:40px}

/* CTA */
.cta-band{margin-top:88px;padding:72px 0;background:var(--ink);color:#fff;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-3.webp') center/cover no-repeat;opacity:.24}
.cta-band::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(12,13,16,.96),rgba(12,13,16,.74))}
.cta-inner{position:relative;z-index:1;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px}
.cta-inner h2{font-size:clamp(24px,3.4vw,34px);font-weight:800;letter-spacing:-.02em;margin-bottom:10px}
.cta-inner p{color:rgba(255,255,255,.72);font-size:15px;max-width:52ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* 页脚 */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:64px 0 28px;border-top:1px solid var(--line-dark)}
.footer-grid{display:grid;gap:36px;grid-template-columns:1fr}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;margin-bottom:16px}
.footer-about{font-size:14px;line-height:1.85;max-width:34ch;color:rgba(255,255,255,.62)}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.66);transition:color .2s var(--ease)}
.footer-col a:hover{color:var(--brand)}
.footer-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);margin-bottom:8px}
.footer-bottom{margin-top:44px;padding-top:22px;border-top:1px solid var(--line-dark);display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.5)}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .related-card:hover,.btn:hover,.btn-login:hover{transform:none}
}

/* roulang page: category1 */
:root{
  --brand:#E8452B;
  --brand-dark:#B62F1C;
  --brand-soft:#FDEDE9;
  --accent:#16C79A;
  --accent-deep:#0E9E7A;
  --accent-soft:#E4F8F2;
  --gold:#F2B24C;
  --gold-soft:#FDF3E2;
  --gold-deep:#B67A18;
  --ink:#0C0D10;
  --ink-2:#16181F;
  --bg:#FAF8F5;
  --card:#FFFFFF;
  --text:#1A1C22;
  --muted:#6B6F7A;
  --line:rgba(12,13,16,.08);
  --line-strong:rgba(12,13,16,.14);
  --line-dark:rgba(255,255,255,.10);
  --r-card:16px;
  --r-lg:22px;
  --r-sm:12px;
  --r-pill:9999px;
  --shadow-card:0 8px 24px rgba(12,13,16,.06);
  --shadow-hover:0 16px 36px rgba(12,13,16,.10);
  --shadow-dark:0 16px 48px rgba(0,0,0,.45);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1240px;
}

*,*::before,*::after{ box-sizing:border-box; }

html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }

body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

h1,h2,h3,h4,p,ul,ol,figure{ margin:0; padding:0; }
ul,ol{ list-style:none; }
img{ max-width:100%; display:block; border:0; }
a{ color:inherit; text-decoration:none; }
button{ font-family:inherit; }

a:focus-visible,button:focus-visible{
  outline:3px solid rgba(232,69,43,.32);
  outline-offset:2px;
  border-radius:6px;
}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}

@media (min-width:768px){
  .container{ padding-left:32px; padding-right:32px; }
}

/* ============ 悬浮胶囊导航 ============ */
.nav-shell{
  position:fixed;
  top:0; left:0; right:0;
  z-index:80;
  padding:14px 16px;
}

@media (min-width:768px){
  .nav-shell{ padding:18px 32px; }
}

.nav-pill{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  width:100%;
  max-width:var(--container);
  margin:0 auto !important;
  padding:10px 12px 10px 16px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.72);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border:1px solid rgba(12,13,16,.06);
  box-shadow:var(--shadow-card);
  transition:background .28s var(--ease),box-shadow .28s var(--ease),padding .28s var(--ease);
}

.nav-shell.is-stuck .nav-pill{
  background:rgba(255,255,255,.94);
  box-shadow:0 12px 32px rgba(12,13,16,.12);
  padding-top:8px;
  padding-bottom:8px;
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:16px;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--text);
  white-space:nowrap;
}

.brand-mark{
  width:32px; height:32px;
  flex:0 0 32px;
  border-radius:10px;
  background:linear-gradient(135deg,var(--brand),#F2704F);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:15px;
  font-weight:800;
  box-shadow:0 6px 14px rgba(232,69,43,.28);
}

.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
}

.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  padding:8px 14px;
  border-radius:var(--r-pill);
  font-size:15px;
  color:#3A3D45;
  transition:color .22s var(--ease),background .22s var(--ease);
}

.nav-link::before{
  content:"";
  position:absolute;
  left:14px; right:14px; bottom:4px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .24s var(--ease);
}

.nav-link:hover{ color:var(--brand); background:var(--brand-soft); }
.nav-link:hover::before{ transform:scaleX(1); }

.nav-link.active{ color:var(--brand); font-weight:600; }
.nav-link.active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:1px;
  width:6px; height:6px;
  margin-left:-3px;
  border-radius:50%;
  background:var(--brand);
}

.nav-actions{
  display:flex;
  align-items:center;
  gap:10px;
}

.btn-login{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:40px;
  padding:0 20px;
  border-radius:var(--r-pill);
  background:var(--brand);
  color:#fff;
  font-size:14px;
  font-weight:600;
  white-space:nowrap;
  box-shadow:0 6px 16px rgba(232,69,43,.26);
  transition:background .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}

.btn-login:hover{
  background:var(--brand-dark);
  transform:translateY(-1px);
  box-shadow:0 10px 22px rgba(232,69,43,.32);
}

.nav-burger{
  display:none;
  width:40px; height:40px;
  padding:0;
  border-radius:var(--r-pill);
  border:1px solid var(--line-strong);
  background:#fff;
  cursor:pointer;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:4px;
  transition:background .2s var(--ease);
}

.nav-burger span{
  display:block;
  width:16px; height:2px;
  border-radius:2px;
  background:var(--text);
  transition:transform .26s var(--ease),opacity .2s var(--ease);
}

.nav-burger.open span:nth-child(1){ transform:translateY(6px) rotate(45deg); }
.nav-burger.open span:nth-child(2){ opacity:0; }
.nav-burger.open span:nth-child(3){ transform:translateY(-6px) rotate(-45deg); }

@media (max-width:880px){
  .nav-pill{
    -webkit-backdrop-filter:none;
    backdrop-filter:none;
    background:rgba(255,255,255,.96);
  }
  .nav-links{
    position:fixed;
    top:0; right:0;
    width:270px;
    height:100vh;
    z-index:90;
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    padding:96px 20px 32px;
    background:#fff;
    box-shadow:-18px 0 48px rgba(12,13,16,.16);
    transform:translateX(100%);
    transition:transform .32s var(--ease);
  }
  .nav-links.open{ transform:translateX(0); }
  .nav-link{
    padding:14px 16px;
    border-radius:var(--r-sm);
    font-size:16px;
  }
  .nav-link::before{ display:none; }
  .nav-link.active{ background:var(--brand-soft); }
  .nav-link.active::after{ display:none; }
  .nav-burger{ display:inline-flex; }
  .btn-login{ height:36px; padding:0 15px; font-size:13px; }

  body.menu-open::before{
    content:"";
    position:fixed;
    inset:0;
    z-index:70;
    background:rgba(12,13,16,.42);
  }
}

/* ============ 顶部半高 band ============ */
.page-band{
  position:relative;
  padding:150px 0 64px;
  min-height:320px;
  overflow:hidden;
  background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%);
}

.page-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  opacity:.07;
}

.page-band::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(250,248,245,.96) 0%,rgba(250,248,245,.72) 46%,rgba(250,248,245,.30) 100%);
}

.band-inner{
  position:relative;
  z-index:1;
  max-width:860px;
}

.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--muted);
}

.breadcrumb a{
  color:var(--muted);
  transition:color .2s var(--ease);
}

.breadcrumb a:hover{ color:var(--brand); }

.breadcrumb li+li::before{
  content:"/";
  margin-right:8px;
  color:rgba(12,13,16,.24);
}

.breadcrumb li[aria-current="page"]{ color:var(--text); font-weight:600; }

.band-title{
  margin-top:16px;
  font-size:clamp(34px,5.4vw,58px);
  font-weight:800;
  line-height:1.12;
  letter-spacing:-.02em;
  color:var(--text);
}

.band-sub{
  margin-top:14px;
  font-size:16.5px;
  line-height:1.8;
  color:var(--muted);
  max-width:520px;
}

.band-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:22px;
}

@media (max-width:880px){
  .page-band{ padding:120px 0 48px; }
  .band-sub{ font-size:15.5px; }
}

/* ============ 通用标签 / 按钮 ============ */
.tag{
  display:inline-flex;
  align-items:center;
  padding:3px 10px;
  border-radius:var(--r-pill);
  font-size:11.5px;
  font-weight:600;
  line-height:1.7;
  white-space:nowrap;
}

.tag-brand{ background:var(--brand-soft); color:var(--brand); }
.tag-accent{ background:var(--accent-soft); color:var(--accent-deep); }
.tag-gold{ background:var(--gold-soft); color:var(--gold-deep); }

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}

.btn-primary{
  background:var(--brand);
  color:#fff;
  box-shadow:0 10px 24px rgba(232,69,43,.28);
}

.btn-primary:hover{
  background:var(--brand-dark);
  transform:translateY(-2px);
  box-shadow:0 14px 30px rgba(232,69,43,.34);
}

.btn-ghost{
  background:transparent;
  color:#fff;
  border-color:rgba(255,255,255,.55);
}

.btn-ghost:hover{
  background:rgba(255,255,255,.12);
  border-color:#fff;
  transform:translateY(-2px);
}

.btn-light{
  background:#fff;
  color:var(--text);
  border-color:var(--line-strong);
}

.btn-light:hover{
  background:var(--brand-soft);
  color:var(--brand);
  border-color:rgba(232,69,43,.28);
}

/* ============ 板块节奏 ============ */
.section{ padding:64px 0; }
.section-tight{ padding:40px 0 8px; }
.section-alt{ background:#fff; }

@media (min-width:768px){
  .section{ padding:96px 0; }
  .section-tight{ padding:56px 0 12px; }
}

.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:18px;
  margin-bottom:34px;
}

.section-title{
  font-size:clamp(26px,3.4vw,38px);
  font-weight:800;
  line-height:1.2;
  letter-spacing:-.02em;
  color:var(--text);
}

.section-lead{
  margin-top:12px;
  font-size:15.5px;
  line-height:1.85;
  color:var(--muted);
  max-width:640px;
}

.link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14.5px;
  font-weight:600;
  color:var(--brand);
  white-space:nowrap;
  transition:gap .22s var(--ease),color .22s var(--ease);
}

.link-more:hover{ gap:12px; color:var(--brand-dark); }

/* ============ 卖点条 ============ */
.metrics{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
}

.metric{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px 20px;
  box-shadow:var(--shadow-card);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}

.metric:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
}

.metric-num{
  display:block;
  font-size:13px;
  font-weight:800;
  letter-spacing:.10em;
  color:var(--brand);
}

.metric-title{
  margin-top:10px;
  font-size:16.5px;
  font-weight:700;
  color:var(--text);
}

.metric-desc{
  margin-top:8px;
  font-size:13.5px;
  line-height:1.8;
  color:var(--muted);
}

@media (max-width:1024px){
  .metrics{ grid-template-columns:repeat(2,1fr); }
}

@media (max-width:560px){
  .metrics{ grid-template-columns:1fr; }
}

/* ============ 左筛选 + 右网格 ============ */
.layout{
  display:grid;
  grid-template-columns:258px minmax(0,1fr);
  gap:32px;
  align-items:start;
}

.filter-panel{
  position:sticky;
  top:112px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:20px;
  box-shadow:var(--shadow-card);
}

.filter-head{
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--muted);
  margin-bottom:12px;
}

.filter-btn{
  display:flex;
  align-items:center;
  justify-content:space-between;
  width:100%;
  padding:11px 14px;
  margin-bottom:6px;
  border-radius:var(--r-sm);
  border:1px solid transparent;
  background:transparent;
  font-size:14.5px;
  color:#3A3D45;
  text-align:left;
  cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}

.filter-btn:hover{ background:var(--bg); color:var(--brand); }

.filter-btn.active{
  background:var(--brand-soft);
  color:var(--brand);
  font-weight:600;
  border-color:rgba(232,69,43,.18);
}

.filter-count{
  font-size:12px;
  color:var(--muted);
  font-variant-numeric:tabular-nums;
}

.filter-btn.active .filter-count{ color:var(--brand); }

.filter-note{
  margin-top:16px;
  padding-top:16px;
  border-top:1px solid var(--line);
  font-size:13px;
  line-height:1.8;
  color:var(--muted);
}

.grid-cards{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
}

.card{
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}

.card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
}

.card-cover{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:#EFEDE9;
}

.card-cover img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .38s var(--ease);
}

.card:hover .card-cover img{ transform:scale(1.03); }

.card-body{
  display:flex;
  flex-direction:column;
  gap:10px;
  flex:1;
  padding:16px;
}

.card-title{
  font-size:16.5px;
  font-weight:700;
  line-height:1.5;
  color:var(--text);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}

.card-desc{
  font-size:13.5px;
  line-height:1.8;
  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:10px;
  margin-top:auto;
  padding-top:6px;
}

.card-link{
  display:inline-flex;
  align-items:center;
  gap:4px;
  font-size:13.5px;
  font-weight:600;
  color:var(--brand);
  transition:gap .22s var(--ease),color .22s var(--ease);
}

.card-link:hover{ gap:10px; color:var(--brand-dark); }

@media (max-width:1280px){
  .grid-cards{ grid-template-columns:repeat(2,minmax(0,1fr)); }
}

@media (max-width:1024px){
  .layout{ grid-template-columns:minmax(0,1fr); gap:24px; }
  .filter-panel{ position:static; }
  .filter-list{ display:flex; flex-wrap:wrap; gap:8px; }
  .filter-btn{ width:auto; margin-bottom:0; }
}

@media (max-width:640px){
  .grid-cards{ grid-template-columns:minmax(0,1fr); }
}

/* ============ 流程步骤 ============ */
.steps{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;
}

.step{
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px 22px;
  box-shadow:var(--shadow-card);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}

.step:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
}

.step-num{
  display:block;
  font-size:42px;
  font-weight:800;
  line-height:1;
  letter-spacing:-.03em;
  color:rgba(232,69,43,.16);
}

.step-title{
  margin-top:12px;
  font-size:17px;
  font-weight:700;
  color:var(--text);
}

.step-desc{
  margin-top:8px;
  font-size:13.5px;
  line-height:1.8;
  color:var(--muted);
}

.step::after{
  content:"";
  position:absolute;
  right:-11px;
  top:44px;
  width:22px;
  height:1px;
  background:var(--line-strong);
}

.step:last-child::after{ display:none; }

@media (max-width:1024px){
  .steps{ grid-template-columns:repeat(2,minmax(0,1fr)); }
  .step:nth-child(2)::after{ display:none; }
}

@media (max-width:560px){
  .steps{ grid-template-columns:minmax(0,1fr); }
  .step::after{ display:none; }
}

/* ============ 深色面板 ============ */
.dark-panel{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-lg);
  padding:52px 40px;
  background:var(--ink);
  color:#fff;
  box-shadow:var(--shadow-dark);
}

.dark-panel::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  opacity:.16;
}

.dark-panel::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(120deg,rgba(12,13,16,.94) 0%,rgba(12,13,16,.78) 55%,rgba(12,13,16,.62) 100%);
}

.dark-inner{ position:relative; z-index:1; }

.dark-title{
  font-size:clamp(24px,3vw,34px);
  font-weight:800;
  line-height:1.25;
  letter-spacing:-.02em;
  color:#fff;
}

.dark-lead{
  margin-top:14px;
  font-size:15.5px;
  line-height:1.85;
  color:rgba(255,255,255,.70);
  max-width:640px;
}

.stat-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:16px;
  margin-top:36px;
}

.stat{
  padding:20px 18px;
  border-radius:var(--r-card);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line-dark);
  transition:background .22s var(--ease),transform .22s var(--ease);
}

.stat:hover{ background:rgba(255,255,255,.09); transform:translateY(-3px); }

.stat b{
  display:block;
  font-size:30px;
  font-weight:800;
  line-height:1.1;
  letter-spacing:-.02em;
  color:var(--gold);
  font-variant-numeric:tabular-nums;
}

.stat span{
  display:block;
  margin-top:8px;
  font-size:13.5px;
  line-height:1.7;
  color:rgba(255,255,255,.66);
}

@media (max-width:1024px){
  .dark-panel{ padding:40px 26px; }
  .stat-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); }
}

@media (max-width:520px){
  .stat-grid{ grid-template-columns:minmax(0,1fr); }
}

/* ============ FAQ + CTA 合并带 ============ */
.faq-cta{
  display:grid;
  grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);
  gap:32px;
  align-items:start;
}

.faq-block{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:26px 26px 12px;
  box-shadow:var(--shadow-card);
}

.faq-item{ border-bottom:1px solid var(--line); }
.faq-item:last-child{ border-bottom:0; }

.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  width:100%;
  padding:18px 0;
  border:0;
  background:transparent;
  text-align:left;
  font-size:16.5px;
  font-weight:600;
  color:var(--text);
  cursor:pointer;
  transition:color .2s var(--ease);
}

.faq-q:hover{ color:var(--brand); }

.faq-icon{
  flex:0 0 auto;
  width:22px;
  text-align:center;
  font-size:20px;
  font-weight:700;
  line-height:1;
  color:var(--brand);
}

.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .32s var(--ease);
}

.faq-a p{
  padding:0 30px 18px 0;
  font-size:15px;
  line-height:1.8;
  color:var(--muted);
}

.cta-card{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-lg);
  padding:38px 30px;
  background:linear-gradient(150deg,var(--ink-2) 0%,var(--ink) 100%);
  color:#fff;
  box-shadow:var(--shadow-dark);
}

.cta-card::before{
  content:"";
  position:absolute;
  right:-70px;
  top:-70px;
  width:220px;
  height:220px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(232,69,43,.42) 0%,rgba(232,69,43,0) 70%);
}

.cta-inner{ position:relative; z-index:1; }

.cta-title{
  font-size:22px;
  font-weight:800;
  line-height:1.35;
  letter-spacing:-.01em;
  color:#fff;
}

.cta-text{
  margin-top:12px;
  font-size:14.5px;
  line-height:1.85;
  color:rgba(255,255,255,.70);
}

.cta-card .btn{ margin-top:24px; width:100%; }

@media (max-width:1024px){
  .faq-cta{ grid-template-columns:minmax(0,1fr); gap:24px; }
  .faq-block{ padding:22px 20px 10px; }
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink);
  color:rgba(255,255,255,.72);
  padding:64px 0 28px;
}

.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:32px;
}

.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:16px;
  font-weight:800;
  color:#fff;
}

.footer-about{
  margin-top:16px;
  max-width:340px;
  font-size:13.5px;
  line-height:1.9;
  color:rgba(255,255,255,.60);
}

.footer-col h4{
  font-size:14px;
  font-weight:700;
  letter-spacing:.02em;
  color:#fff;
  margin-bottom:16px;
}

.footer-col ul li{ margin-bottom:10px; }

.footer-col a{
  font-size:14px;
  color:rgba(255,255,255,.66);
  transition:color .2s var(--ease);
}

.footer-col a:hover{ color:#fff; }

.footer-col p{
  font-size:13.5px;
  line-height:1.9;
  color:rgba(255,255,255,.60);
  margin-bottom:8px;
}

.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:48px;
  padding-top:20px;
  border-top:1px solid var(--line-dark);
  font-size:13px;
  color:rgba(255,255,255,.48);
}

@media (max-width:1024px){
  .footer-grid{ grid-template-columns:1fr 1fr; }
}

@media (max-width:560px){
  .footer-grid{ grid-template-columns:1fr; gap:26px; }
  .site-footer{ padding:48px 0 24px; }
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
  .card:hover,.metric:hover,.step:hover,.stat:hover,.btn:hover{ transform:none; }
}

/* roulang page: category2 */
:root{
  --brand:#E8452B;
  --brand-dark:#B62F1C;
  --brand-soft:#FDEDE9;
  --mint:#16C79A;
  --mint-soft:#E4F8F2;
  --amber:#F2B24C;
  --ink:#0C0D10;
  --ink-2:#16181F;
  --paper:#FAF8F5;
  --card:#FFFFFF;
  --text:#1A1C22;
  --muted:#6B6F7A;
  --line:rgba(12,13,16,.08);
  --line-dark:rgba(255,255,255,.10);
  --r-card:16px;
  --r-sm:12px;
  --r-pill:9999px;
  --sh-card:0 8px 24px rgba(12,13,16,.06);
  --sh-dark:0 16px 48px rgba(0,0,0,.45);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--paper);
  color:var(--text);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
button{font:inherit;color:inherit;cursor:pointer;}
ul,ol{margin:0;padding:0;}
h1,h2,h3,h4{margin:0;letter-spacing:-.02em;}
p{margin:0;}
:focus-visible{outline:3px solid rgba(232,69,43,.35);outline-offset:2px;border-radius:8px;}

.container{max-width:1240px;margin:0 auto;padding:0 20px;}
@media (min-width:768px){.container{padding:0 32px;}}

/* ---------- 悬浮胶囊导航 ---------- */
.nav-shell{
  position:fixed;top:0;left:0;right:0;z-index:60;
  padding-top:14px;
  transition:padding-top .25s var(--ease);
}
.nav-shell.compact{padding-top:8px;}
.nav-pill{
  max-width:1240px;margin:0 auto;
  display:flex;align-items:center;gap:14px;
  padding:10px 12px 10px 20px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.72);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border:1px solid rgba(12,13,16,.06);
  box-shadow:0 8px 24px rgba(12,13,16,.06);
  transition:background .25s var(--ease),padding .25s var(--ease),box-shadow .25s var(--ease);
}
.nav-shell.compact .nav-pill{
  background:rgba(255,255,255,.9);
  padding:7px 10px 7px 18px;
  box-shadow:0 10px 30px rgba(12,13,16,.1);
}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:var(--text);white-space:nowrap;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),#F2734F);
  color:#fff;font-weight:800;font-size:16px;
  box-shadow:0 6px 16px rgba(232,69,43,.28);
  flex:none;
}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;padding:9px 16px;border-radius:var(--r-pill);
  font-size:15px;color:var(--muted);white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--text);background:rgba(12,13,16,.045);}
.nav-link.active{color:var(--brand);font-weight:700;}
.nav-link.active::after{
  content:"";position:absolute;left:50%;bottom:2px;
  width:5px;height:5px;border-radius:50%;background:var(--brand);
  transform:translateX(-50%);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:none;}
.btn-login{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 22px;border-radius:var(--r-pill);
  background:var(--brand);color:#fff;font-weight:700;font-size:15px;
  box-shadow:0 8px 20px rgba(232,69,43,.28);
  transition:background .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-login:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 12px 26px rgba(232,69,43,.34);}
.nav-burger{
  display:none;width:42px;height:42px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-burger span{display:block;width:16px;height:2px;border-radius:2px;background:var(--text);transition:transform .2s var(--ease),opacity .2s var(--ease);}
body.nav-open .nav-burger span:nth-child(1){transform:translateY(6px) rotate(45deg);}
body.nav-open .nav-burger span:nth-child(2){opacity:0;}
body.nav-open .nav-burger span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

@media (max-width:1023px){
  .nav-burger{display:flex;}
  .nav-links{
    position:fixed;top:0;right:0;z-index:70;
    width:290px;max-width:86vw;height:100vh;
    flex-direction:column;align-items:stretch;gap:6px;
    padding:104px 22px 28px;margin:0;
    background:#fff;box-shadow:-16px 0 48px rgba(12,13,16,.14);
    transform:translateX(100%);
    transition:transform .32s var(--ease);
  }
  body.nav-open .nav-links{transform:translateX(0);}
  .nav-link{padding:13px 16px;font-size:16px;border-radius:var(--r-sm);}
  .nav-link.active::after{left:16px;bottom:50%;transform:translate(0,50%);}
  .nav-link.active{padding-left:30px;}
}

/* ---------- 分类半高 band ---------- */
.band{
  position:relative;overflow:hidden;
  padding:150px 0 46px;
  min-height:320px;
  border-bottom:1px solid var(--line);
  background:radial-gradient(120% 150% at 8% 0%,#FFFFFF 0%,var(--brand-soft) 46%,var(--paper) 100%);
}
.band::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.07;
}
.band .container{position:relative;z-index:1;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;font-size:13px;color:var(--muted);margin-bottom:20px;}
.crumb li{display:inline-flex;align-items:center;gap:8px;}
.crumb li+li::before{content:"/";color:rgba(12,13,16,.22);}
.crumb a:hover{color:var(--brand);}
.crumb .current{color:var(--text);font-weight:600;}
.band h1{
  font-size:clamp(34px,6vw,56px);font-weight:800;letter-spacing:-.02em;line-height:1.15;
}
.band-sub{margin-top:14px;font-size:16px;color:var(--muted);max-width:620px;}
.band-badge{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.06em;
  color:var(--brand);background:var(--brand-soft);
  border-radius:var(--r-pill);padding:5px 14px;margin-bottom:18px;
}
.metrics{display:flex;flex-wrap:wrap;gap:22px;margin-top:28px;font-size:13px;color:var(--muted);}
.metrics span{display:inline-flex;align-items:center;gap:8px;}
.dot{width:7px;height:7px;border-radius:50%;background:var(--mint);display:inline-block;flex:none;}

/* ---------- 通用区块 ---------- */
.sec{padding:64px 0;}
@media (min-width:768px){.sec{padding:96px 0;}}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:34px;}
.sec-title{font-size:clamp(24px,3.6vw,36px);font-weight:800;letter-spacing:-.02em;line-height:1.25;}
.sec-sub{margin-top:12px;color:var(--muted);font-size:15px;max-width:640px;}
.eyebrow{font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--brand);text-transform:uppercase;display:block;margin-bottom:12px;}
.link-all{font-size:14px;font-weight:700;color:var(--brand);display:inline-flex;align-items:center;gap:6px;}
.link-all:hover{color:var(--brand-dark);gap:10px;}

/* ---------- 标签切换 ---------- */
.tabs{display:flex;gap:10px;overflow-x:auto;padding:2px 2px 8px;margin-bottom:30px;scrollbar-width:none;}
.tabs::-webkit-scrollbar{display:none;}
.tab{
  white-space:nowrap;border:1px solid var(--line);background:#fff;
  border-radius:var(--r-pill);padding:10px 20px;font-size:14px;color:var(--muted);
  transition:all .2s var(--ease);
}
.tab:hover{border-color:rgba(232,69,43,.4);color:var(--text);transform:translateY(-1px);}
.tab.active{background:var(--ink);border-color:var(--ink);color:#fff;font-weight:700;}

/* ---------- 错落卡片 ---------- */
.stagger-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:768px){
  .stagger-grid{grid-template-columns:1fr 1fr;gap:24px;}
  .stagger-grid > .pcard:nth-child(even){margin-top:56px;}
}
.pcard{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-card);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.pcard:hover{transform:translateY(-4px);box-shadow:0 18px 44px rgba(12,13,16,.13);}
.pcard-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#f0edE8;}
.pcard-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease);}
.pcard:hover .pcard-media img{transform:scale(1.03);}
.pcard-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 45%,rgba(12,13,16,.42) 100%);
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;padding:4px 11px;border-radius:var(--r-pill);
  background:var(--brand-soft);color:var(--brand);
}
.badge-mint{background:var(--mint-soft);color:#0E8F6F;}
.badge-amber{background:rgba(242,178,76,.18);color:#95610E;}
.badge-solid{background:var(--ink);color:#fff;}
.pcard-badge{position:absolute;left:12px;top:12px;z-index:2;background:rgba(255,255,255,.92);color:var(--brand);backdrop-filter:blur(6px);}
.pcard-body{padding:20px 20px 22px;}
.pcard-title{
  font-size:19px;font-weight:700;line-height:1.5;margin:12px 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.pcard-desc{
  color:var(--muted);font-size:14px;line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.pcard-foot{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);
}
.more-link{font-size:14px;font-weight:700;color:var(--brand);display:inline-flex;align-items:center;gap:6px;}
.more-link:hover{color:var(--brand-dark);gap:10px;}

/* ---------- 深色区块 ---------- */
.dark{
  position:relative;overflow:hidden;
  background:var(--ink);color:#fff;
  padding:72px 0;
}
@media (min-width:768px){.dark{padding:104px 0;}}
.dark::before{
  content:"";position:absolute;width:620px;height:620px;border-radius:50%;
  top:-260px;right:-180px;
  background:radial-gradient(circle,rgba(232,69,43,.28),transparent 68%);
}
.dark::after{
  content:"";position:absolute;width:520px;height:520px;border-radius:50%;
  bottom:-280px;left:-160px;
  background:radial-gradient(circle,rgba(22,199,154,.18),transparent 70%);
}
.dark .container{position:relative;z-index:1;}
.dark .sec-sub{color:rgba(255,255,255,.62);}
.dark .eyebrow{color:var(--amber);}
.steps{display:grid;grid-template-columns:1fr;gap:18px;margin-top:8px;}
@media (min-width:768px){.steps{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.steps{grid-template-columns:repeat(4,1fr);}}
.step{
  position:relative;overflow:hidden;
  background:var(--ink-2);border:1px solid var(--line-dark);
  border-radius:var(--r-card);padding:26px 20px 24px;
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.step:hover{transform:translateY(-4px);border-color:rgba(232,69,43,.45);}
.step-num{
  position:absolute;top:-12px;right:10px;
  font-size:56px;font-weight:800;line-height:1;
  color:rgba(255,255,255,.07);
}
.step h3{font-size:17px;font-weight:700;margin-bottom:10px;}
.step p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);}

/* ---------- 排行表 ---------- */
.table-scroll{overflow-x:auto;margin-top:56px;border:1px solid var(--line-dark);border-radius:var(--r-card);background:rgba(255,255,255,.02);}
.rank-table{width:100%;min-width:640px;border-collapse:collapse;font-size:15px;}
.rank-table th{
  text-align:left;font-size:12px;font-weight:600;letter-spacing:.1em;
  color:rgba(255,255,255,.45);padding:18px 20px 14px;
}
.rank-table td{padding:16px 20px;border-top:1px solid var(--line-dark);vertical-align:middle;color:rgba(255,255,255,.86);}
.rank-table tbody tr{transition:background .2s var(--ease);}
.rank-table tbody tr:hover{background:rgba(255,255,255,.04);}
.rank-no{font-weight:800;color:var(--amber);width:56px;font-size:18px;}
.rank-note{color:rgba(255,255,255,.5);font-size:13px;}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:none;border:0;padding:22px 0;text-align:left;
  font-size:16.5px;font-weight:600;color:var(--text);line-height:1.6;
}
.faq-q i{color:var(--brand);font-size:15px;flex:none;transition:transform .25s var(--ease);}
.faq-q:hover{color:var(--brand);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
.faq-a p{margin:0 0 22px;font-size:15px;line-height:1.85;color:var(--muted);max-width:860px;}
.faq-item.open .faq-a{max-height:340px;}
.faq-item.open .faq-q i{transform:rotate(45deg);}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(135deg,var(--ink) 0%,#241a18 58%,#3d1a12 100%);
  color:#fff;padding:64px 0;
  position:relative;overflow:hidden;
}
@media (min-width:768px){.cta-band{padding:80px 0;}}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  opacity:.14;
}
.cta-inner{
  position:relative;z-index:1;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-inner h2{font-size:clamp(22px,3vw,30px);font-weight:800;line-height:1.35;}
.cta-inner p{margin-top:12px;color:rgba(255,255,255,.68);font-size:15px;max-width:520px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  border-radius:var(--r-pill);padding:14px 28px;font-size:15px;font-weight:700;
  border:1px solid transparent;
  transition:all .22s var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 12px 28px rgba(232,69,43,.3);}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 16px 34px rgba(232,69,43,.36);}
.btn-outline{background:transparent;border-color:rgba(255,255,255,.4);color:#fff;}
.btn-outline:hover{background:rgba(255,255,255,.1);border-color:#fff;transform:translateY(-2px);}
.btn-ghost{background:#fff;border-color:rgba(12,13,16,.14);color:var(--text);border-radius:var(--r-sm);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:38px;}
@media (min-width:768px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;}}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:18px;}
.footer-about{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.58);max-width:340px;}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-col ul{list-style:none;display:grid;gap:11px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.66);}
.footer-col a:hover{color:var(--brand);}
.footer-col p{font-size:14px;color:rgba(255,255,255,.58);margin-bottom:10px;line-height:1.8;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line-dark);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important;}
  html{scroll-behavior:auto;}
}