/* roulang page: index */
:root{
  --c-ink:#0E1116;
  --c-ink-2:#171B21;
  --c-accent:#C9FF3D;
  --c-secondary:#FF6A3D;
  --c-bg:#F6F6F3;
  --c-surface:#FFFFFF;
  --c-line:#E4E5E0;
  --c-text:#14161A;
  --c-text-2:#5A6169;
  --c-ok:#2FB344;
  --c-warn:#E8A400;
  --c-err:#E2453C;
  --r-xs:6px;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(14,17,22,.05);
  --sh-2:0 14px 40px -18px rgba(14,17,22,.22);
  --ease:cubic-bezier(.22,.7,.28,1);
  --nav-h:64px;
  --container:1240px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
body.is-locked{overflow:hidden;}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
button,input{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:var(--r-xs);}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
@media(min-width:1024px){.container{padding:0 32px;}}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:var(--r-sm);
  font-size:14px;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;white-space:nowrap;
  transition:transform .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease),color .18s var(--ease);
}
.btn:hover{transform:translateY(-2px);}
.btn:active{transform:translateY(0);}
.btn-primary{background:var(--c-accent);color:var(--c-ink);box-shadow:0 8px 22px -12px rgba(201,255,61,.9);}
.btn-primary:hover{background:#d5ff5e;}
.btn-outline{border-color:rgba(255,255,255,.28);color:#F2F3EF;}
.btn-outline:hover{border-color:var(--c-accent);color:var(--c-accent);}
.btn-ghost{border-color:var(--c-line);background:var(--c-surface);color:var(--c-text);}
.btn-ghost:hover{border-color:var(--c-accent);color:var(--c-ink);}
.btn-dark{background:var(--c-ink);color:#F2F3EF;}
.btn-dark:hover{background:var(--c-ink-2);}
.btn-lg{padding:15px 30px;font-size:16px;border-radius:var(--r-pill);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(14,17,22,.9);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:height .28s var(--ease),background .28s var(--ease);
}
.site-header.is-shrink{background:rgba(14,17,22,.97);}
.nav-wrap{
  max-width:var(--container);margin:0 auto;padding:0 20px;
  height:var(--nav-h);display:flex;align-items:center;gap:24px;
  transition:height .28s var(--ease);
}
.site-header.is-shrink .nav-wrap{height:60px;}
@media(min-width:1024px){.nav-wrap{padding:0 32px;}}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;color:#F2F3EF;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--c-accent);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
  transition:transform .28s var(--ease);
}
.brand:hover .brand-mark{transform:rotate(-6deg) scale(1.04);}
.brand-mark svg{width:18px;height:18px;display:block;}
.brand-text{font-size:16px;font-weight:800;letter-spacing:.01em;white-space:nowrap;}
.nav-main{display:none;align-items:center;gap:6px;margin-left:12px;}
.nav-link{
  position:relative;padding:10px 14px;border-radius:var(--r-sm);
  font-size:14.5px;font-weight:600;color:rgba(255,255,255,.66);
  transition:color .18s var(--ease),background .18s var(--ease);
}
.nav-link:hover{color:#F2F3EF;background:rgba(255,255,255,.06);}
.nav-link.is-active{color:#F2F3EF;}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--c-accent);border-radius:2px;
}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.nav-search{display:none;position:relative;align-items:center;}
.nav-search svg{position:absolute;left:12px;width:15px;height:15px;color:var(--c-text-2);pointer-events:none;}
.nav-search input{
  width:220px;padding:9px 14px 9px 34px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.06);
  color:#F2F3EF;font-size:13.5px;
  transition:width .28s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
}
.nav-search input::placeholder{color:rgba(255,255,255,.42);}
.nav-search input:focus{width:320px;outline:none;border-color:var(--c-accent);background:rgba(255,255,255,.1);}
.nav-actions .btn-ghost{display:none;background:transparent;color:rgba(255,255,255,.82);border-color:rgba(255,255,255,.18);}
.nav-actions .btn-ghost:hover{color:var(--c-accent);border-color:var(--c-accent);}
.nav-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:var(--r-sm);
  border:1px solid rgba(255,255,255,.18);color:#F2F3EF;
}
.nav-toggle svg{width:18px;height:18px;}
@media(min-width:1024px){
  .nav-main{display:flex;}
  .nav-search{display:flex;}
  .nav-actions .btn-ghost{display:inline-flex;}
  .nav-toggle{display:none;}
}
@media(max-width:520px){
  .brand-text{font-size:14.5px;}
  .nav-actions .btn-primary{padding:9px 14px;font-size:13.5px;}
}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:130;background:var(--c-ink);
  transform:translateY(-101%);transition:transform .42s var(--ease);
  display:flex;flex-direction:column;padding:18px 20px 24px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateY(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:20px;}
.drawer-close{width:40px;height:40px;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.2);color:#F2F3EF;display:flex;align-items:center;justify-content:center;}
.drawer-search{position:relative;display:flex;align-items:center;margin-bottom:22px;}
.drawer-search svg{position:absolute;left:14px;width:16px;height:16px;color:rgba(255,255,255,.5);}
.drawer-search input{
  width:100%;padding:12px 14px 12px 38px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.06);color:#F2F3EF;font-size:14px;
}
.drawer-search input::placeholder{color:rgba(255,255,255,.44);}
.drawer-nav{display:flex;flex-direction:column;gap:6px;}
.drawer-nav a{
  padding:15px 16px;border-radius:var(--r-md);font-size:17px;font-weight:700;
  color:rgba(255,255,255,.78);border:1px solid transparent;
}
.drawer-nav a.is-active{color:var(--c-ink);background:var(--c-accent);}
.drawer-nav a:hover{border-color:rgba(255,255,255,.18);color:#F2F3EF;}
.drawer-cta{margin-top:auto;padding-top:26px;display:flex;flex-direction:column;gap:10px;}
.drawer-cta .btn{width:100%;padding:15px;font-size:16px;}

/* ---------- 首屏 ---------- */
.hero{position:relative;background:var(--c-ink);color:#F2F3EF;overflow:hidden;}
.hero-grid-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(circle at 30% 20%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 30% 20%,#000 0%,transparent 78%);
  pointer-events:none;
}
.hero-glow{
  position:absolute;width:520px;height:520px;left:-140px;top:-180px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,255,61,.22) 0%,transparent 68%);
  pointer-events:none;
}
.hero-inner{
  position:relative;z-index:2;
  padding:64px 0 56px;
  display:grid;gap:40px;
}
@media(min-width:1024px){
  .hero-inner{padding:88px 0 76px;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:var(--r-pill);
  border:1px solid rgba(201,255,61,.35);background:rgba(201,255,61,.08);
  color:var(--c-accent);font-size:13px;font-weight:700;letter-spacing:.02em;
  margin-bottom:22px;
}
.hero-badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent);}
.hero h1{
  font-size:clamp(32px,6vw,64px);
  font-weight:800;line-height:1.12;letter-spacing:-.02em;margin-bottom:20px;
}
.hero h1 .hl{
  background:var(--c-accent);color:var(--c-ink);
  padding:0 10px;border-radius:var(--r-xs);display:inline-block;
}
.hero-sub{font-size:17px;line-height:1.8;color:rgba(255,255,255,.68);max-width:560px;margin-bottom:30px;}
@media(min-width:768px){.hero-sub{font-size:18px;}}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:34px;}
@media(max-width:520px){.hero-actions .btn{width:100%;}}
.hero-points{display:flex;flex-wrap:wrap;gap:12px 34px;border-top:1px solid rgba(255,255,255,.1);padding-top:24px;}
.hero-points li{display:flex;align-items:baseline;gap:8px;font-size:14px;color:rgba(255,255,255,.6);}
.hero-points strong{font-size:20px;font-weight:800;color:var(--c-accent);}
.hero-media{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid rgba(255,255,255,.1);}
.hero-media img{width:100%;aspect-ratio:21/9;object-fit:cover;background:linear-gradient(135deg,#1c2129,#0E1116);}
@media(max-width:1023px){.hero-media img{aspect-ratio:16/9;}}

/* ---------- 板块通用 ---------- */
.section{padding:clamp(64px,9vw,132px) 0;}
.section-alt{background:var(--c-surface);}
.section-dark{background:var(--c-ink);color:#F2F3EF;}
.section-head{max-width:760px;margin-bottom:clamp(32px,4vw,56px);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;
  color:var(--c-text-2);margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--c-accent);border-radius:2px;}
.section-dark .eyebrow{color:rgba(255,255,255,.55);}
.section-title{
  font-size:clamp(26px,3.4vw,40px);font-weight:800;line-height:1.2;letter-spacing:-.02em;
  margin-bottom:16px;
}
.section-lead{font-size:16px;line-height:1.85;color:var(--c-text-2);}
.section-dark .section-lead{color:rgba(255,255,255,.62);}

/* ---------- Bento 卖点 ---------- */
.bento{display:grid;grid-template-columns:1fr;gap:20px;}
@media(min-width:768px){.bento{grid-template-columns:repeat(6,1fr);gap:24px;}}
.bento-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:26px;box-shadow:var(--sh-1);
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
  display:flex;flex-direction:column;gap:12px;
}
.bento-item:hover{transform:translateY(-2px);border-color:var(--c-accent);box-shadow:var(--sh-2);}
.bento-item h3{font-size:19px;font-weight:800;line-height:1.4;}
.bento-item p{font-size:14.5px;line-height:1.8;color:var(--c-text-2);}
.bento-icon{
  width:40px;height:40px;border-radius:12px;background:rgba(201,255,61,.24);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.bento-icon svg{width:20px;height:20px;color:var(--c-ink);}
.bento-wide .bento-figure{margin-top:6px;border-radius:var(--r-sm);overflow:hidden;}
.bento-wide .bento-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;background:linear-gradient(135deg,#e8e9e4,#f7f7f4);}
@media(min-width:768px){
  .bento-item:nth-child(1){grid-column:span 4;}
  .bento-item:nth-child(2){grid-column:span 2;}
  .bento-item:nth-child(3){grid-column:span 2;}
  .bento-item:nth-child(4){grid-column:span 2;}
  .bento-item:nth-child(5){grid-column:span 2;}
}

/* ---------- 流程演示 ---------- */
.demo-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media(min-width:1024px){.demo-grid{grid-template-columns:1fr 1.05fr;gap:56px;align-items:start;}}
.steps{position:relative;padding-left:8px;}
.step{
  position:relative;padding:0 0 30px 40px;border-left:1px solid var(--c-line);
  transition:border-color .28s var(--ease);
}
.step:last-child{border-left-color:transparent;padding-bottom:0;}
.step:hover{border-left-color:var(--c-accent);}
.step-num{
  position:absolute;left:-17px;top:-2px;width:34px;height:34px;border-radius:50%;
  background:var(--c-surface);border:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:center;
  font-size:12.5px;font-weight:800;color:var(--c-text-2);
  transition:background .28s var(--ease),color .28s var(--ease),border-color .28s var(--ease);
}
.step:hover .step-num{background:var(--c-accent);color:var(--c-ink);border-color:var(--c-accent);}
.step h3{font-size:19px;font-weight:800;margin-bottom:8px;transition:color .28s var(--ease);}
.step p{font-size:14.5px;line-height:1.85;color:var(--c-text-2);max-width:520px;}
.demo-media{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--c-line);
  background:var(--c-surface);box-shadow:var(--sh-1);
}
.demo-media img{width:100%;aspect-ratio:16/10;object-fit:cover;background:linear-gradient(135deg,#eceee8,#f8f8f5);}
.demo-note{
  margin-top:18px;padding:16px 18px;border-radius:var(--r-md);
  background:var(--c-surface);border:1px solid var(--c-line);
  font-size:14px;line-height:1.8;color:var(--c-text-2);
}
.demo-note strong{color:var(--c-text);}

/* ---------- 数据与反馈 ---------- */
.stats{
  display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--c-line);
  border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;margin-bottom:44px;
}
@media(min-width:768px){.stats{grid-template-columns:repeat(4,1fr);}}
.stat{background:var(--c-surface);padding:28px 22px;}
.stat-num{font-size:clamp(28px,4vw,40px);font-weight:800;color:var(--c-ink);line-height:1.1;letter-spacing:-.02em;}
.stat-num em{font-style:normal;font-size:.55em;font-weight:700;color:var(--c-text-2);margin-left:4px;}
.stat-label{margin-top:8px;font-size:13.5px;color:var(--c-text-2);}
.quotes{display:grid;grid-template-columns:1fr;gap:20px;}
@media(min-width:768px){.quotes{grid-template-columns:repeat(2,1fr);}}
.quote{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--sh-1);
  transition:border-color .28s var(--ease),transform .28s var(--ease);
}
.quote:hover{border-color:var(--c-accent);transform:translateY(-2px);}
.quote p{font-size:15px;line-height:1.85;color:var(--c-text);margin-bottom:14px;}
.quote span{font-size:13px;color:var(--c-text-2);}
.quote::before{
  content:"“";display:block;font-size:34px;line-height:1;color:var(--c-accent);
  font-weight:800;margin-bottom:6px;
}

/* ---------- 登陆方式卡 ---------- */
.plans{display:grid;grid-template-columns:1fr;gap:22px;align-items:start;}
@media(min-width:900px){.plans{grid-template-columns:repeat(3,1fr);}}
.plan{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);padding:30px 26px 28px;box-shadow:var(--sh-1);
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.plan:hover{transform:translateY(-2px);border-color:var(--c-accent);box-shadow:var(--sh-2);}
.plan.is-featured{border-color:var(--c-accent);transform:translateY(-8px);box-shadow:var(--sh-2);}
.plan.is-featured:hover{transform:translateY(-10px);}
.plan-badge{
  position:absolute;top:-12px;left:26px;
  padding:5px 14px;border-radius:var(--r-pill);
  background:var(--c-secondary);color:#fff;font-size:12px;font-weight:800;letter-spacing:.04em;
}
.plan h3{font-size:21px;font-weight:800;margin-bottom:8px;}
.plan-desc{font-size:14px;color:var(--c-text-2);line-height:1.75;margin-bottom:22px;}
.plan-list{display:flex;flex-direction:column;gap:12px;margin-bottom:26px;}
.plan-list li{display:flex;gap:10px;font-size:14.5px;line-height:1.7;color:var(--c-text);}
.plan-list li svg{width:17px;height:17px;flex-shrink:0;margin-top:4px;color:var(--c-ok);}
.plan .btn{width:100%;}

/* ---------- 资讯列表 ---------- */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px;}
.chip{
  padding:8px 18px;border-radius:var(--r-pill);border:1px solid var(--c-line);
  background:var(--c-surface);font-size:13.5px;font-weight:600;color:var(--c-text-2);
  transition:all .18s var(--ease);
}
.chip:hover{border-color:var(--c-accent);color:var(--c-text);}
.chip.is-active{background:var(--c-ink);border-color:var(--c-ink);color:#F2F3EF;}
.news-grid{display:grid;grid-template-columns:1fr;gap:24px;}
@media(min-width:600px){.news-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.news-grid{grid-template-columns:repeat(3,1fr);}}
.news-card{
  display:flex;flex-direction:column;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.news-card:hover{transform:translateY(-3px);border-color:var(--c-accent);box-shadow:var(--sh-2);}
.news-cover{position:relative;overflow:hidden;background:linear-gradient(135deg,#e9ebe5,#f7f7f4);}
.news-cover img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .52s var(--ease);}
.news-card:hover .news-cover img{transform:scale(1.03);}
.news-cat{
  position:absolute;left:12px;top:12px;
  padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(14,17,22,.82);color:#F2F3EF;font-size:12px;font-weight:700;
  backdrop-filter:blur(6px);
}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-body h3{font-size:17.5px;font-weight:800;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-body p{font-size:14px;line-height:1.8;color:var(--c-text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{margin-top:auto;padding-top:12px;border-top:1px solid var(--c-line);display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-text-2);}
.news-more{font-weight:700;color:var(--c-ink);}
.news-card:hover .news-more{color:var(--c-secondary);}
.news-empty{
  grid-column:1/-1;padding:56px 24px;text-align:center;
  border:1px dashed var(--c-line);border-radius:var(--r-md);background:var(--c-surface);
}
.news-empty svg{width:34px;height:34px;color:var(--c-text-2);margin:0 auto 14px;}
.news-empty p{color:var(--c-text-2);font-size:15px;margin-bottom:18px;}

/* ---------- FAQ ---------- */
.faq-list{max-width:860px;border-top:1px solid var(--c-line);}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-item summary{
  position:relative;padding:22px 44px 22px 26px;cursor:pointer;list-style:none;
  font-size:16.5px;font-weight:700;line-height:1.6;
  transition:color .18s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:28px;
  width:8px;height:8px;border-right:2px solid var(--c-text-2);border-bottom:2px solid var(--c-text-2);
  transform:rotate(45deg);transition:transform .28s var(--ease),border-color .28s var(--ease);
}
.faq-item summary::after{
  content:"";position:absolute;left:0;top:20px;bottom:20px;width:3px;border-radius:3px;
  background:transparent;transition:background .28s var(--ease);
}
.faq-item summary:hover{color:var(--c-ink);}
.faq-item[open] summary::before{transform:rotate(-135deg);border-color:var(--c-secondary);}
.faq-item[open] summary::after{background:var(--c-accent);}
.faq-item[open] summary{color:var(--c-ink);}
.faq-body{padding:0 44px 24px 26px;font-size:15px;line-height:1.9;color:var(--c-text-2);animation:faqIn .28s var(--ease) both;}
@keyframes faqIn{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:none;}}

/* ---------- 结尾 CTA ---------- */
.cta-band{
  background:var(--c-ink);color:#F2F3EF;border-radius:var(--r-lg);
  padding:clamp(40px,6vw,72px) clamp(24px,5vw,64px);
  text-align:center;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;width:440px;height:440px;right:-160px;bottom:-220px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,255,61,.18) 0%,transparent 70%);
}
.cta-band h2{font-size:clamp(24px,3.4vw,38px);font-weight:800;line-height:1.24;letter-spacing:-.02em;margin-bottom:16px;position:relative;z-index:2;}
.cta-band p{font-size:16px;color:rgba(255,255,255,.68);max-width:620px;margin:0 auto 30px;position:relative;z-index:2;}
.cta-band .btn{position:relative;z-index:2;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);padding:clamp(48px,7vw,80px) 0 0;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding-bottom:44px;}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;color:#F2F3EF;}
.footer-brand .brand-mark{width:30px;height:30px;border-radius:9px;}
.footer-brand span{font-size:16px;font-weight:800;}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:320px;}
.footer-col h3{font-size:14px;font-weight:800;color:#F2F3EF;margin-bottom:16px;letter-spacing:.04em;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.62);transition:color .18s var(--ease);}
.footer-col a:hover{color:var(--c-accent);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);padding:22px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px 20px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.48);
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:90;
  display:inline-flex;align-items:center;gap:9px;
  padding:14px 24px;border-radius:var(--r-pill);
  background:var(--c-accent);color:var(--c-ink);font-size:15px;font-weight:800;
  box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s var(--ease);
}
.float-cta.is-on{opacity:1;visibility:visible;transform:none;}
.float-cta:hover{background:#d5ff5e;transform:translateY(-2px);}
.float-cta svg{width:17px;height:17px;}
@media(max-width:767px){
  .float-cta{
    left:0;right:0;bottom:0;border-radius:0;justify-content:center;
    height:56px;padding:0 16px calc(env(safe-area-inset-bottom,0px) * .5);
    font-size:15px;transform:translateY(100%);
  }
  .float-cta.is-on{transform:none;}
}

/* ---------- 滚动进入动效 ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .52s var(--ease),transform .52s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}
@media(prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --c-ink:#0E1116;
  --c-ink-2:#171B21;
  --c-accent:#C9FF3D;
  --c-accent-ink:#8FBF1F;
  --c-secondary:#FF6A3D;
  --c-bg:#F6F6F3;
  --c-surface:#FFFFFF;
  --c-line:#E4E5E0;
  --c-text:#14161A;
  --c-text-2:#5A6169;
  --c-ok:#2FB344;
  --c-warn:#E8A400;
  --c-err:#E2453C;
  --r-xs:6px;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(14,17,22,.05);
  --sh-2:0 14px 40px -18px rgba(14,17,22,.22);
  --ease:cubic-bezier(.22,.7,.28,1);
  --t1:180ms;
  --t2:280ms;
  --t3:520ms;
  --maxw:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:var(--r-xs)}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 32px}
.num{font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(14,17,22,.94);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:background var(--t2) var(--ease);
}
.header-inner{display:flex;align-items:center;gap:22px;height:64px;transition:height var(--t2) var(--ease)}
.site-header.is-scrolled .header-inner{height:60px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:30px;height:30px;border-radius:9px;background:var(--c-accent);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.brand-mark svg{width:19px;height:19px}
.brand-text{color:#F2F3EF;font-size:15.5px;font-weight:800;letter-spacing:.01em;white-space:nowrap}
.nav-main{display:flex;align-items:center;gap:2px;margin-left:6px}
.nav-link{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  border-radius:var(--r-sm);
  font-size:14.5px;
  color:rgba(255,255,255,.72);
  transition:color var(--t1) var(--ease),background var(--t1) var(--ease);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.07)}
.nav-link.is-active{color:#fff}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--c-accent);border-radius:2px;
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.search-box{
  display:flex;align-items:center;gap:8px;
  height:38px;padding:0 14px;width:220px;
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.05);
  transition:width var(--t2) var(--ease),border-color var(--t2) var(--ease),background var(--t2) var(--ease);
}
.search-box:focus-within{width:320px;border-color:var(--c-accent);background:rgba(255,255,255,.08)}
.search-box svg{width:15px;height:15px;flex:0 0 auto;opacity:.65}
.search-box input{
  border:0;background:transparent;outline:none;width:100%;
  font-size:13.5px;color:#F2F3EF;
}
.search-box input::placeholder{color:rgba(255,255,255,.5)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:38px;padding:0 18px;
  border-radius:var(--r-sm);
  border:1px solid transparent;
  font-size:14px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform var(--t1) var(--ease),background var(--t1) var(--ease),border-color var(--t1) var(--ease),color var(--t1) var(--ease),box-shadow var(--t1) var(--ease);
}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn-accent{background:var(--c-accent);color:var(--c-ink);border-radius:var(--r-pill);font-weight:700}
.btn-accent:hover{filter:brightness(1.06);box-shadow:0 10px 24px -14px rgba(201,255,61,.9)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.2);color:#F2F3EF}
.btn-ghost:hover{border-color:var(--c-accent);color:var(--c-accent)}
.btn-ghost-dark{border-color:var(--c-line);color:var(--c-text);background:var(--c-surface)}
.btn-ghost-dark:hover{border-color:var(--c-ink);}
.nav-toggle{
  display:none;width:40px;height:38px;border-radius:var(--r-sm);
  border:1px solid rgba(255,255,255,.16);background:transparent;cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{width:17px;height:2px;background:#F2F3EF;border-radius:2px;transition:transform var(--t1) var(--ease),opacity var(--t1) var(--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)}
.mobile-drawer{
  display:none;
  position:fixed;left:0;right:0;top:56px;bottom:0;
  background:var(--c-ink);
  padding:22px 20px 96px;
  flex-direction:column;gap:22px;
  overflow-y:auto;z-index:59;
}
.mobile-drawer.is-open{display:flex}
.mobile-search{display:flex;align-items:center;gap:10px;height:44px;padding:0 16px;border-radius:var(--r-sm);background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12)}
.mobile-search input{border:0;background:transparent;outline:none;width:100%;color:#F2F3EF;font-size:14px}
.mobile-nav{display:flex;flex-direction:column;gap:2px}
.mobile-nav a{padding:14px 4px;color:rgba(255,255,255,.85);font-size:16px;font-weight:600;border-bottom:1px solid rgba(255,255,255,.08)}
.mobile-nav a.is-active{color:var(--c-accent)}
.mobile-cta{margin-top:auto}

/* ---------- progress ---------- */
.read-progress{position:fixed;top:0;left:0;height:2px;width:0;background:var(--c-accent);z-index:80;transition:width 90ms linear}

/* ---------- article head ---------- */
.article-top{background:var(--c-surface);border-bottom:1px solid var(--c-line);padding:30px 0 34px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-2)}
.breadcrumb a{transition:color var(--t1) var(--ease)}
.breadcrumb a:hover{color:var(--c-accent-ink)}
.breadcrumb .sep{color:var(--c-accent-ink);font-weight:700}
.breadcrumb .now{color:var(--c-text);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-title{
  margin:16px 0 18px;max-width:900px;
  font-size:clamp(28px,4.2vw,44px);
  font-weight:800;line-height:1.2;letter-spacing:-.02em;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13.5px;color:var(--c-text-2)}
.meta-row .divider{width:1px;height:12px;background:var(--c-line)}
.meta-chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(201,255,61,.22);
  border:1px solid rgba(143,191,31,.35);
  color:#3f5a06;font-size:12.5px;font-weight:700;
}

/* ---------- layout ---------- */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:56px;
  align-items:start;
  padding-top:52px;
  padding-bottom:40px;
}
.article-main{min-width:0}
.article-body{max-width:760px;font-size:17px;line-height:1.9;color:var(--c-text)}
.article-body p{margin:0 0 1.4em}
.article-body h2{
  position:relative;
  margin:2.1em 0 .75em;
  padding-left:14px;
  font-size:clamp(21px,2.4vw,27px);
  font-weight:800;line-height:1.35;letter-spacing:-.01em;
}
.article-body h2::before{content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;background:var(--c-accent);border-radius:2px}
.article-body h3{margin:1.7em 0 .55em;font-size:20px;font-weight:700;line-height:1.4}
.article-body h4{margin:1.4em 0 .5em;font-size:17px;font-weight:700}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:1.35em}
.article-body ul{list-style:square}
.article-body ol{list-style:decimal}
.article-body ul li::marker{color:var(--c-accent-ink)}
.article-body ol li::marker{color:var(--c-accent-ink);font-weight:700}
.article-body li{margin:.42em 0}
.article-body a{color:#3f5a06;border-bottom:2px solid var(--c-accent);transition:background var(--t1) var(--ease)}
.article-body a:hover{background:rgba(201,255,61,.35)}
.article-body strong{font-weight:700}
.article-body blockquote{
  margin:1.6em 0;padding:16px 20px;
  background:var(--c-surface);
  border-left:3px solid var(--c-accent);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:var(--c-text-2);font-size:16px;
}
.article-body img{border-radius:12px;margin:1.6em auto;box-shadow:var(--sh-1)}
.article-body figure{margin:1.8em 0}
.article-body figcaption{margin-top:10px;text-align:center;font-size:13px;color:var(--c-text-2)}
.article-body code{background:#EDEEE9;padding:2px 6px;border-radius:var(--r-xs);font-size:.92em}
.article-body pre{
  margin:1.6em 0;padding:18px 20px;border-radius:var(--r-md);
  background:var(--c-ink);color:#F2F3EF;overflow:auto;font-size:14px;line-height:1.7;
}
.article-body pre code{background:transparent;padding:0;color:inherit}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:10px 14px;text-align:left}
.article-body th{background:#F1F2ED;font-weight:700}
.article-body hr{margin:2.2em 0;border:0;height:1px;background:var(--c-line)}

.empty-state{
  padding:48px 32px;text-align:center;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
}
.empty-state .empty-icon{
  width:52px;height:52px;margin:0 auto 18px;border-radius:14px;
  background:rgba(201,255,61,.3);
  display:flex;align-items:center;justify-content:center;
}
.empty-state h2{font-size:22px;font-weight:800;margin-bottom:10px;padding:0}
.empty-state h2::before{display:none}
.empty-state p{color:var(--c-text-2);font-size:15px;margin-bottom:22px}

/* ---------- side ---------- */
.article-side{position:relative}
.side-inner{position:sticky;top:88px;display:flex;flex-direction:column;gap:18px}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-md);padding:20px;
}
.side-card h3{
  margin-bottom:14px;font-size:13px;font-weight:800;
  letter-spacing:.08em;color:var(--c-text-2);
}
.toc-list{display:flex;flex-direction:column;gap:2px}
.toc-list a{
  display:block;padding:7px 10px;font-size:13.5px;color:var(--c-text-2);
  border-left:2px solid transparent;border-radius:0 var(--r-xs) var(--r-xs) 0;
  transition:color var(--t1) var(--ease),background var(--t1) var(--ease),border-color var(--t1) var(--ease);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.toc-list a:hover,.toc-list a.is-current{color:var(--c-text);background:#F1F2ED;border-left-color:var(--c-accent)}
.hot-list{display:flex;flex-direction:column;gap:12px}
.hot-list a{display:flex;gap:10px;font-size:14px;color:var(--c-text-2);line-height:1.5;transition:color var(--t1) var(--ease)}
.hot-list a:hover{color:var(--c-text)}
.hot-list span.idx{
  flex:0 0 20px;height:20px;border-radius:6px;background:#F1F2ED;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:11.5px;font-weight:800;color:var(--c-text-2);
}
.hot-list a:hover span.idx{background:var(--c-accent);color:var(--c-ink)}
.side-note{font-size:13px;color:var(--c-text-2);line-height:1.75}

/* ---------- tags & post nav ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin:38px 0 0;padding-top:26px;border-top:1px solid var(--c-line)}
.tag{
  display:inline-flex;align-items:center;
  padding:5px 13px;border-radius:var(--r-pill);
  background:var(--c-surface);border:1px solid var(--c-line);
  font-size:13px;color:var(--c-text-2);
  transition:border-color var(--t1) var(--ease),color var(--t1) var(--ease);
}
.tag:hover{border-color:var(--c-accent-ink);color:var(--c-text)}
.post-foot{margin-top:32px;display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between}

/* ---------- sections ---------- */
.section{padding:clamp(56px,7vw,96px) 0}
.section-head{max-width:720px;margin-bottom:36px}
.section-head h2{font-size:clamp(24px,3vw,36px);font-weight:800;line-height:1.2;letter-spacing:-.02em}
.section-head p{margin-top:12px;color:var(--c-text-2);font-size:15.5px}
.section-head .bar{width:56px;height:4px;border-radius:2px;background:var(--c-accent);margin-bottom:16px}

.card-grid{display:grid;gap:24px;grid-template-columns:repeat(3,minmax(0,1fr))}
.content-card{
  display:flex;flex-direction:column;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-md);overflow:hidden;
  transition:transform var(--t2) var(--ease),border-color var(--t2) var(--ease),box-shadow var(--t2) var(--ease);
}
.content-card:hover{transform:translateY(-2px);border-color:var(--c-accent);box-shadow:var(--sh-2)}
.card-media{position:relative;aspect-ratio:16/10;background:linear-gradient(135deg,#1a1f26,#0E1116);overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--t3) var(--ease)}
.content-card:hover .card-media img{transform:scale(1.03)}
.card-badge{
  position:absolute;top:12px;left:12px;
  padding:4px 11px;border-radius:var(--r-pill);
  background:var(--c-secondary);color:#fff;
  font-size:12px;font-weight:700;
}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:18px;font-weight:700;line-height:1.45}
.card-body p{font-size:14px;color:var(--c-text-2);line-height:1.7}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-text-2);padding-top:6px}
.card-foot .more{color:var(--c-accent-ink);font-weight:700}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--c-ink);color:#F2F3EF;
  border-radius:var(--r-lg);
  padding:clamp(40px,5vw,64px) clamp(24px,5vw,64px);
  text-align:center;
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:56px 56px;
  pointer-events:none;
}
.cta-band > *{position:relative}
.cta-band h2{font-size:clamp(24px,3.2vw,38px);font-weight:800;line-height:1.22;letter-spacing:-.02em}
.cta-band p{margin:16px auto 28px;max-width:640px;color:rgba(255,255,255,.66);font-size:15.5px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}

/* ---------- float cta ---------- */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:70;
  display:inline-flex;align-items:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-pill);
  background:var(--c-accent);color:var(--c-ink);
  font-size:14.5px;font-weight:800;
  box-shadow:0 16px 34px -16px rgba(14,17,22,.6);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity var(--t2) var(--ease),transform var(--t2) var(--ease),visibility var(--t2) var(--ease);
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta:hover{filter:brightness(1.06)}

/* ---------- footer ---------- */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.62);padding:64px 0 28px;margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.footer-col h3{font-size:14px;font-weight:800;color:#F2F3EF;margin-bottom:18px;letter-spacing:.02em}
.footer-brand{display:flex;align-items:center;gap:10px;color:#F2F3EF;font-weight:800;font-size:16px;margin-bottom:16px}
.footer-brand .brand-mark{width:28px;height:28px}
.footer-about{font-size:13.5px;line-height:1.85;max-width:340px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col ul a{font-size:13.5px;transition:color var(--t1) var(--ease)}
.footer-col ul a:hover{color:var(--c-accent)}
.footer-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:12.5px;color:rgba(255,255,255,.48);
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity var(--t3) var(--ease),transform var(--t3) var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  .search-box{width:190px}
  .search-box:focus-within{width:240px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav-main{display:none}
  .search-box{display:none}
  .nav-toggle{display:flex}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;padding-top:40px}
  .article-side{display:none}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .header-inner{height:56px}
  .site-header.is-scrolled .header-inner{height:56px}
  .mobile-drawer{top:56px}
  .btn-ghost{margin-left:auto}
  .header-actions .btn-ghost{display:none}
  .brand-text{font-size:14.5px}
  .article-top{padding:22px 0 26px}
  .article-body{font-size:16.5px;line-height:1.85}
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .cta-actions .btn{width:100%}
  .section{padding:52px 0}
}
@media (max-width:520px){
  .container{padding:0 20px}
  .header-actions{gap:8px}
  .btn{padding:0 14px;font-size:13.5px}
  .float-cta{
    left:0;right:0;bottom:0;height:56px;justify-content:center;
    border-radius:0;padding-bottom:env(safe-area-inset-bottom,0);
    transform:translateY(100%);
  }
  .float-cta.is-visible{transform:translateY(0)}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category1 */
:root{
  --c-ink:#0E1116;
  --c-ink-2:#171B21;
  --c-accent:#C9FF3D;
  --c-secondary:#FF6A3D;
  --c-bg:#F6F6F3;
  --c-surface:#FFFFFF;
  --c-line:#E4E5E0;
  --c-text:#14161A;
  --c-text-2:#5A6169;
  --c-dark-text:#F2F3EF;
  --c-dark-text-2:rgba(255,255,255,.62);
  --c-success:#2FB344;
  --c-warning:#E8A400;
  --c-error:#E2453C;
  --r-xs:6px;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(14,17,22,.05);
  --sh-2:0 14px 40px -18px rgba(14,17,22,.22);
  --ease:cubic-bezier(.22,.7,.28,1);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,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;transition:color .18s var(--ease)}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:700;line-height:1;
  transition:transform .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--c-accent);color:var(--c-ink);box-shadow:0 8px 22px -14px rgba(201,255,61,.9)}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.04)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{border:1px solid rgba(255,255,255,.35);color:var(--c-dark-text)}
.btn-outline:hover{border-color:var(--c-accent);color:var(--c-accent)}
.btn-ghost{border:1px solid var(--c-line);color:var(--c-text);background:transparent}
.btn-ghost:hover{border-color:var(--c-accent);color:var(--c-ink);background:rgba(201,255,61,.16)}
.btn-ink{background:var(--c-ink);color:var(--c-dark-text)}
.btn-ink:hover{transform:translateY(-2px);background:var(--c-ink-2)}
.btn-lg{padding:16px 30px;font-size:16px;border-radius:var(--r-pill)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(14,17,22,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:height .28s var(--ease),background .28s var(--ease);
}
.header-inner{display:flex;align-items:center;gap:24px;height:64px;transition:height .28s var(--ease)}
.site-header.is-scrolled .header-inner{height:60px}
.brand{display:flex;align-items:center;gap:10px;color:var(--c-dark-text);font-weight:800;font-size:17px;letter-spacing:-.01em}
.brand-mark{
  width:32px;height:32px;border-radius:10px;flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-accent);
}
.brand-mark svg{width:19px;height:19px}
.nav-main{display:flex;align-items:center;gap:6px;margin-left:8px}
.nav-link{
  position:relative;padding:10px 12px;font-size:15px;font-weight:600;
  color:rgba(255,255,255,.72);border-radius:var(--r-xs);
  transition:color .18s var(--ease);
}
.nav-link:hover{color:#fff}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--c-accent);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .28s var(--ease);
}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:#fff}
.nav-link.is-active::after{transform:scaleX(1)}
.header-tools{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{
  display:flex;align-items:center;gap:8px;
  width:220px;padding:9px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);
  transition:width .28s var(--ease),border-color .28s var(--ease),background .28s var(--ease);
}
.search-box:focus-within{width:320px;border-color:var(--c-accent);background:rgba(255,255,255,.12)}
.search-box svg{width:16px;height:16px;flex:0 0 auto;stroke:rgba(255,255,255,.6)}
.search-box input{flex:1;min-width:0;border:0;background:none;outline:none;font-size:14px;color:#fff}
.search-box input::placeholder{color:rgba(255,255,255,.5)}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--r-sm);
  border:1px solid rgba(255,255,255,.18);align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:#fff;transition:transform .28s var(--ease)
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-drawer{display:none}

@media (max-width:1023px){
  .nav-main{display:none}
  .search-box{display:none}
  .header-tools .btn-ghost{display:none}
  .nav-toggle{display:inline-flex}
  .mobile-drawer{
    display:block;position:fixed;inset:56px 0 0 0;z-index:55;
    background:var(--c-ink);padding:24px 20px 96px;
    transform:translateY(-8px);opacity:0;visibility:hidden;
    transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s;
    overflow-y:auto;
  }
  .mobile-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
  .mobile-drawer .search-box{display:flex;width:100%;margin-bottom:20px}
  .mobile-drawer .search-box:focus-within{width:100%}
  .mobile-drawer nav{display:flex;flex-direction:column;gap:4px}
  .mobile-drawer .nav-link{color:rgba(255,255,255,.78);font-size:17px;padding:14px 12px;border-bottom:1px solid rgba(255,255,255,.07)}
  .mobile-drawer .nav-link.is-active{color:var(--c-accent)}
  .mobile-drawer .drawer-cta{margin-top:24px;display:flex;flex-direction:column;gap:12px}
  .mobile-drawer .btn{width:100%}
}

/* ---------- 分类页首屏 ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  min-height:340px;height:38vh;max-height:440px;
  display:flex;align-items:center;
  background-color:var(--c-ink);
  background-image:linear-gradient(180deg,rgba(14,17,22,.72),rgba(14,17,22,.55)),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  color:var(--c-dark-text);
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:64px 64px;
  pointer-events:none;
}
.cat-hero::after{
  content:"";position:absolute;width:520px;height:520px;right:-140px;top:-200px;
  background:radial-gradient(circle,rgba(201,255,61,.28),transparent 65%);
  pointer-events:none;
}
.cat-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-dark-text-2);margin-bottom:16px}
.breadcrumb a:hover{color:var(--c-accent)}
.breadcrumb .sep{color:var(--c-accent)}
.cat-hero h1{
  font-size:clamp(30px,4.6vw,52px);font-weight:800;line-height:1.14;letter-spacing:-.02em;
  max-width:20ch;
}
.cat-hero .hero-sub{margin-top:14px;font-size:17px;color:rgba(255,255,255,.76);max-width:52ch}
.cat-hero .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}

/* ---------- 板块通用 ---------- */
.section{padding:clamp(64px,9vw,132px) 0}
.section-head{max-width:760px;margin-bottom:clamp(28px,4vw,48px)}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--c-text-2);
  text-transform:uppercase;margin-bottom:14px;
}
.section-tag::before{content:"";width:18px;height:2px;background:var(--c-accent);border-radius:2px}
.section-head h2{font-size:clamp(26px,3.4vw,40px);line-height:1.2;font-weight:800;letter-spacing:-.02em}
.section-head p{margin-top:14px;color:var(--c-text-2);font-size:16px;line-height:1.85}

/* ---------- 筛选 chips ---------- */
.chip-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 16px;border-radius:var(--r-pill);
  background:var(--c-surface);border:1px solid var(--c-line);
  font-size:13px;font-weight:600;color:var(--c-text-2);
  transition:all .18s var(--ease);
}
.chip:hover{border-color:var(--c-accent);color:var(--c-text)}
.chip.is-active{background:var(--c-ink);border-color:var(--c-ink);color:var(--c-accent)}

/* ---------- 卡片网格 ---------- */
.card-grid{display:grid;gap:24px;grid-template-columns:1fr}
@media (min-width:600px){.card-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(4,1fr)}}
.card{
  display:flex;flex-direction:column;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:var(--c-accent);box-shadow:var(--sh-2)}
.card-media{
  position:relative;aspect-ratio:16/10;overflow:hidden;
  background:linear-gradient(135deg,#1b2028,#2b323c);
}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .52s var(--ease)}
.card:hover .card-media img{transform:scale(1.04)}
.badge{
  position:absolute;top:12px;left:12px;
  padding:5px 11px;border-radius:var(--r-pill);
  background:rgba(14,17,22,.82);color:var(--c-accent);
  font-size:12px;font-weight:700;letter-spacing:.02em;
}
.card-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:18px;line-height:1.4;font-weight:700}
.card-body p{font-size:14px;line-height:1.75;color:var(--c-text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto}
.tag{
  padding:4px 10px;border-radius:var(--r-pill);
  background:var(--c-bg);border:1px solid var(--c-line);
  font-size:12px;color:var(--c-text-2);
}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;
  padding-top:12px;border-top:1px solid var(--c-line);
  font-size:13px;color:var(--c-text-2);
}
.card-foot .go{color:var(--c-text);font-weight:700}
.card:hover .card-foot .go{color:#0E1116;text-decoration:underline;text-decoration-color:var(--c-accent);text-decoration-thickness:3px;text-underline-offset:4px}
.card-grid .grid-break{grid-column:1/-1}

/* ---------- 全宽 CTA 条 ---------- */
.inline-cta{
  grid-column:1/-1;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
  padding:24px 26px;border-radius:var(--r-md);
  background:var(--c-ink);color:var(--c-dark-text);
  border:1px solid rgba(255,255,255,.08);
  position:relative;overflow:hidden;
}
.inline-cta::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--c-accent);
}
.inline-cta strong{display:block;font-size:19px;font-weight:800;line-height:1.4}
.inline-cta span{display:block;margin-top:6px;font-size:14px;color:var(--c-dark-text-2);max-width:60ch}

/* ---------- 三步流程 ---------- */
.steps-wrap{display:grid;gap:40px;grid-template-columns:1fr;align-items:start}
@media (min-width:1024px){.steps-wrap{grid-template-columns:1fr 1fr;gap:56px}}
.steps{position:relative;padding-left:34px}
.steps::before{content:"";position:absolute;left:11px;top:8px;bottom:8px;width:1px;background:var(--c-line)}
.step{position:relative;padding:0 0 30px}
.step:last-child{padding-bottom:0}
.step::before{
  content:"";position:absolute;left:-34px;top:6px;width:23px;height:23px;border-radius:50%;
  background:var(--c-surface);border:2px solid var(--c-line);
  transition:border-color .28s var(--ease),background .28s var(--ease);
}
.step-no{
  display:inline-block;font-size:13px;font-weight:800;letter-spacing:.1em;
  color:var(--c-text-2);margin-bottom:6px;
}
.step h3{font-size:19px;font-weight:700;line-height:1.4}
.step p{margin-top:8px;font-size:15px;color:var(--c-text-2)}
.step:hover::before{border-color:var(--c-accent);background:var(--c-accent)}
.step:hover .step-no{color:var(--c-text)}
.steps-figure{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--c-line);
  background:linear-gradient(135deg,#1b2028,#2b323c);aspect-ratio:16/10;
}
.steps-figure img{width:100%;height:100%;object-fit:cover}

/* ---------- 数据条 ---------- */
.stat-bar{
  display:grid;gap:1px;grid-template-columns:1fr;background:var(--c-line);
  border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;
}
@media (min-width:640px){.stat-bar{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.stat-bar{grid-template-columns:repeat(4,1fr)}}
.stat{background:var(--c-surface);padding:28px 24px}
.stat .num{font-size:clamp(30px,3.6vw,42px);font-weight:800;letter-spacing:-.02em;line-height:1.1;font-variant-numeric:tabular-nums}
.stat .num em{font-style:normal;font-size:18px;margin-left:4px;color:var(--c-text-2);font-weight:700}
.stat .label{margin-top:10px;font-size:14px;color:var(--c-text-2)}

/* ---------- 适用场景清单 ---------- */
.scene-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:640px){.scene-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.scene-grid{grid-template-columns:repeat(3,1fr)}}
.scene{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:24px;transition:border-color .28s var(--ease),transform .28s var(--ease);
}
.scene:hover{border-color:var(--c-accent);transform:translateY(-2px)}
.scene .ico{
  width:40px;height:40px;border-radius:var(--r-sm);
  display:flex;align-items:center;justify-content:center;
  background:rgba(201,255,61,.24);margin-bottom:16px;
}
.scene .ico svg{width:20px;height:20px;stroke:var(--c-ink)}
.scene h3{font-size:17px;font-weight:700;line-height:1.45}
.scene p{margin-top:8px;font-size:14px;color:var(--c-text-2)}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--c-line);max-width:900px}
.faq-item{border-bottom:1px solid var(--c-line);position:relative}
.faq-item::after{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--c-accent);
  transform:scaleY(0);transform-origin:top;transition:transform .28s var(--ease);
}
.faq-item[open]::after{transform:scaleY(1)}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:22px 40px 22px 24px;font-size:17px;font-weight:700;line-height:1.6;
  transition:color .18s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;right:16px;top:30px;width:8px;height:8px;
  border-right:2px solid var(--c-text-2);border-bottom:2px solid var(--c-text-2);
  transform:rotate(45deg);transition:transform .28s var(--ease),border-color .28s var(--ease);
}
.faq-item[open] summary::before{transform:rotate(-135deg);top:32px;border-color:var(--c-ink)}
.faq-item summary:hover{color:#000}
.faq-item .answer{padding:0 40px 24px 24px;font-size:15px;line-height:1.9;color:var(--c-text-2)}
.faq-item[open] .answer{animation:fadeUp .36s var(--ease)}
@keyframes fadeUp{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}

/* ---------- 相关分类 ---------- */
.related-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:768px){.related-grid{grid-template-columns:repeat(2,1fr)}}
.related-card{
  display:flex;gap:18px;align-items:center;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:18px;transition:border-color .28s var(--ease),transform .28s var(--ease);
}
.related-card:hover{border-color:var(--c-accent);transform:translateY(-2px)}
.related-card .thumb{
  width:104px;height:74px;flex:0 0 auto;border-radius:var(--r-sm);overflow:hidden;
  background:linear-gradient(135deg,#1b2028,#2b323c);
}
.related-card .thumb img{width:100%;height:100%;object-fit:cover}
.related-card h3{font-size:16px;font-weight:700}
.related-card p{margin-top:6px;font-size:13px;color:var(--c-text-2)}

/* ---------- 结尾 CTA ---------- */
.final-cta{
  background:var(--c-ink);color:var(--c-dark-text);position:relative;overflow:hidden;
  padding:clamp(56px,8vw,104px) 0;text-align:center;
}
.final-cta::before{
  content:"";position:absolute;width:620px;height:620px;left:50%;top:-320px;transform:translateX(-50%);
  background:radial-gradient(circle,rgba(201,255,61,.22),transparent 62%);
  pointer-events:none;
}
.final-cta .container{position:relative;z-index:2}
.final-cta h2{font-size:clamp(26px,3.4vw,40px);font-weight:800;line-height:1.22;letter-spacing:-.02em}
.final-cta p{margin:16px auto 30px;max-width:56ch;color:var(--c-dark-text-2);font-size:16px}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:70;
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 24px;border-radius:var(--r-pill);
  background:var(--c-accent);color:var(--c-ink);
  font-size:15px;font-weight:800;
  box-shadow:0 18px 40px -18px rgba(14,17,22,.55);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta:hover{transform:translateY(-3px)}
.float-cta svg{width:17px;height:17px;stroke:var(--c-ink)}
@media (max-width:767px){
  .float-cta{
    left:0;right:0;bottom:0;border-radius:0;justify-content:center;
    padding:16px 20px calc(16px + env(safe-area-inset-bottom));
    transform:translateY(100%);
  }
  .float-cta.is-visible{transform:translateY(0)}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:var(--c-dark-text);padding:clamp(48px,6vw,80px) 0 0;margin-top:0}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr}}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;margin-bottom:14px}
.footer-brand .brand-mark{width:30px;height:30px;border-radius:9px;background:var(--c-accent);display:inline-flex;align-items:center;justify-content:center}
.footer-brand .brand-mark svg{width:18px;height:18px}
.footer-about{font-size:14px;line-height:1.9;color:var(--c-dark-text-2);max-width:46ch}
.footer-col h3{font-size:14px;font-weight:700;letter-spacing:.06em;color:#fff;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14px;color:var(--c-dark-text-2)}
.footer-col a:hover{color:var(--c-accent)}
.footer-bottom{
  margin-top:clamp(36px,5vw,56px);padding:22px 0;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:var(--c-dark-text-2);
}

/* ---------- 滚动进入动效 ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .52s var(--ease),transform .52s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
}

/* roulang page: category2 */
:root{
  --c-ink:#0E1116;
  --c-ink-2:#171B21;
  --c-accent:#C9FF3D;
  --c-secondary:#FF6A3D;
  --c-bg:#F6F6F3;
  --c-surface:#FFFFFF;
  --c-line:#E4E5E0;
  --c-text:#14161A;
  --c-text-2:#5A6169;
  --c-ok:#2FB344;
  --c-warn:#E8A400;
  --c-err:#E2453C;
  --r-xs:6px;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(14,17,22,.05);
  --sh-2:0 14px 40px -18px rgba(14,17,22,.22);
  --ease:cubic-bezier(.22,.7,.28,1);
  --header-h:64px;
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:86px;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;font-size:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
@media(min-width:1024px){.container{padding:0 32px;}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 20px;border-radius:var(--r-sm);
  border:1px solid transparent;font-size:15px;font-weight:600;letter-spacing:.01em;
  cursor:pointer;transition:transform .18s var(--ease),background-color .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease),box-shadow .18s var(--ease);
  white-space:nowrap;
}
.btn:active{transform:translateY(0);}
.btn-primary{background:var(--c-accent);color:var(--c-ink);border-color:var(--c-accent);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 24px -12px rgba(201,255,61,.85);}
.btn-ghost{background:transparent;color:#F2F3EF;border-color:rgba(255,255,255,.28);}
.btn-ghost:hover{border-color:var(--c-accent);color:var(--c-accent);transform:translateY(-2px);}
.btn-outline{background:transparent;color:var(--c-text);border-color:var(--c-line);}
.btn-outline:hover{border-color:var(--c-ink);transform:translateY(-2px);}
.btn-light{background:#fff;color:var(--c-ink);border-color:#fff;}
.btn-light:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-sm{height:36px;padding:0 16px;font-size:14px;}
.btn-pill{border-radius:var(--r-pill);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(14,17,22,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:height .28s var(--ease),background-color .28s var(--ease);
}
.header-inner{display:flex;align-items:center;gap:20px;height:var(--header-h);transition:height .28s var(--ease);}
.site-header.is-shrink .header-inner{height:60px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;color:#F2F3EF;font-weight:800;font-size:17px;letter-spacing:-.01em;}
.brand-mark{
  width:32px;height:32px;border-radius:10px;display:grid;place-items:center;flex-shrink:0;
  background:var(--c-accent);
}
.brand-mark svg{width:19px;height:19px;}
.brand-name{white-space:nowrap;}
.nav-main{display:flex;align-items:center;gap:4px;margin-left:12px;}
.nav-link{
  position:relative;padding:8px 14px;border-radius:var(--r-sm);
  font-size:15px;color:rgba(255,255,255,.72);font-weight:500;
  transition:color .18s var(--ease),background-color .18s var(--ease);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.06);}
.nav-link.is-active{color:#fff;font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;
  background:var(--c-accent);border-radius:2px;
}
.header-right{display:flex;align-items:center;gap:10px;margin-left:auto;}
.search-box{
  display:flex;align-items:center;gap:8px;width:220px;height:38px;padding:0 14px;
  border-radius:var(--r-pill);background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.12);
  transition:width .28s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease);
}
.search-box:hover{border-color:rgba(255,255,255,.26);}
.search-box:focus-within{width:320px;border-color:var(--c-accent);background:rgba(255,255,255,.12);}
.search-box svg{width:15px;height:15px;flex-shrink:0;stroke:rgba(255,255,255,.6);}
.search-box input{flex:1;min-width:0;background:transparent;border:0;outline:none;font-size:14px;color:#F2F3EF;}
.search-box input::placeholder{color:rgba(255,255,255,.45);}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:16px;height:1.5px;background:#F2F3EF;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:16px;height:1.5px;background:#F2F3EF;}
.nav-toggle span::before{top:-5px;}
.nav-toggle span::after{top:5px;}
.mobile-drawer{
  display:none;position:fixed;inset:0;z-index:200;
  background:rgba(14,17,22,.98);
  padding:24px 20px 90px;overflow-y:auto;
}
.mobile-drawer.is-open{display:block;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{
  width:38px;height:38px;border-radius:var(--r-sm);background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);color:#F2F3EF;font-size:20px;cursor:pointer;line-height:1;
}
.drawer-search{width:100%;margin-bottom:20px;height:44px;}
.drawer-nav{display:flex;flex-direction:column;gap:6px;}
.drawer-nav a{
  padding:14px 16px;border-radius:var(--r-sm);color:rgba(255,255,255,.8);
  font-size:17px;font-weight:600;border:1px solid transparent;
}
.drawer-nav a:hover{background:rgba(255,255,255,.06);color:#fff;}
.drawer-nav a.is-active{color:var(--c-accent);border-color:rgba(201,255,61,.35);background:rgba(201,255,61,.08);}
.drawer-cta{position:fixed;left:20px;right:20px;bottom:calc(18px + env(safe-area-inset-bottom));}

/* ---------- 页面 Hero（窄幅） ---------- */
.page-hero{
  position:relative;background:var(--c-ink);overflow:hidden;
  min-height:38vh;display:flex;align-items:center;
  padding:clamp(72px,10vw,120px) 0 clamp(56px,8vw,88px);
}
.page-hero .hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.46;}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:1;
  background:
    linear-gradient(180deg,rgba(14,17,22,.55),rgba(14,17,22,.86)),
    repeating-linear-gradient(90deg,rgba(255,255,255,.05) 0 1px,transparent 1px 68px);
}
.page-hero::after{
  content:"";position:absolute;z-index:1;width:420px;height:420px;right:-90px;top:-160px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,255,61,.22),transparent 68%);
}
.hero-inner{position:relative;z-index:2;max-width:820px;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.55);margin-bottom:18px;}
.breadcrumb a:hover{color:var(--c-accent);}
.breadcrumb .sep{color:var(--c-accent);}
.page-hero h1{
  font-size:clamp(30px,4.6vw,54px);font-weight:800;line-height:1.14;letter-spacing:-.02em;color:#F2F3EF;
}
.page-hero h1 .hl{background:var(--c-accent);color:var(--c-ink);padding:0 10px;border-radius:8px;display:inline-block;}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.85;color:rgba(255,255,255,.68);max-width:640px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.hero-tags span{
  font-size:13px;padding:6px 14px;border-radius:var(--r-pill);
  color:rgba(255,255,255,.72);border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.04);
}

/* ---------- 筛选 chips ---------- */
.chips-bar{background:var(--c-surface);border-bottom:1px solid var(--c-line);}
.chips-inner{display:flex;align-items:center;gap:10px;padding:16px 0;overflow-x:auto;scrollbar-width:none;}
.chips-inner::-webkit-scrollbar{display:none;}
.chip{
  flex-shrink:0;font-size:14px;padding:8px 16px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);color:var(--c-text-2);background:#fff;cursor:pointer;
  transition:color .18s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease);
}
.chip:hover{border-color:var(--c-ink);color:var(--c-text);}
.chip.is-active{background:var(--c-ink);border-color:var(--c-ink);color:#fff;font-weight:600;}

/* ---------- 通用板块 ---------- */
.section{padding:clamp(56px,8vw,110px) 0;}
.section-alt{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.section-head{max-width:720px;margin-bottom:clamp(28px,4vw,48px);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--c-text-2);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--c-accent);border-radius:2px;}
.section-head h2{
  font-size:clamp(24px,3.2vw,38px);font-weight:800;line-height:1.22;letter-spacing:-.02em;
}
.section-head p{margin-top:14px;color:var(--c-text-2);font-size:16px;}

/* ---------- 卡片网格 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:24px;}
.card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.card:hover{transform:translateY(-2px);border-color:var(--c-accent);box-shadow:var(--sh-2);}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:linear-gradient(135deg,#e9eae4,#d8dad2);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .52s var(--ease);}
.card:hover .card-media img{transform:scale(1.03);}
.card-badge{
  position:absolute;left:12px;top:12px;font-size:12px;font-weight:600;
  padding:4px 10px;border-radius:var(--r-pill);background:var(--c-secondary);color:#fff;
}
.card-badge.is-soft{background:rgba(14,17,22,.82);color:#F2F3EF;}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:19px;font-weight:700;line-height:1.4;letter-spacing:-.01em;}
.card-body p{font-size:14px;line-height:1.8;color:var(--c-text-2);}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:12px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-text-2);}
.card-foot .go{color:var(--c-text);font-weight:600;}
.card-foot .go::after{content:" →";color:var(--c-secondary);}
.card:hover .card-foot .go{color:var(--c-secondary);}

/* 全宽打断条 */
.grid-divider{
  grid-column:1/-1;display:flex;flex-wrap:wrap;align-items:center;gap:16px;justify-content:space-between;
  padding:22px 26px;border-radius:var(--r-md);
  background:linear-gradient(90deg,rgba(201,255,61,.95),rgba(201,255,61,.7));
  color:var(--c-ink);border:1px solid rgba(14,17,22,.08);
}
.grid-divider strong{font-size:18px;font-weight:800;letter-spacing:-.01em;}
.grid-divider span{font-size:14px;color:rgba(14,17,22,.72);}

/* ---------- 清单卡（适用场景） ---------- */
.check-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px;}
.check-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:26px 24px;box-shadow:var(--sh-1);
  transition:transform .28s var(--ease),border-color .28s var(--ease);
}
.check-card:hover{transform:translateY(-2px);border-color:var(--c-accent);}
.check-ico{
  width:40px;height:40px;border-radius:var(--r-sm);display:grid;place-items:center;
  background:var(--c-ink);margin-bottom:16px;
}
.check-ico svg{width:20px;height:20px;stroke:var(--c-accent);}
.check-card h3{font-size:18px;font-weight:700;margin-bottom:10px;}
.check-list{display:flex;flex-direction:column;gap:9px;margin-top:6px;}
.check-list li{position:relative;padding-left:20px;font-size:14px;color:var(--c-text-2);line-height:1.75;}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;width:9px;height:9px;border-radius:2px;
  background:var(--c-accent);
}

/* ---------- 流程时间线 ---------- */
.flow-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:start;}
@media(min-width:960px){.flow-grid{grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:56px;}}
.flow-list{position:relative;padding-left:26px;}
.flow-list::before{content:"";position:absolute;left:7px;top:10px;bottom:10px;width:1px;background:var(--c-line);}
.flow-item{position:relative;padding:0 0 28px 14px;}
.flow-item:last-child{padding-bottom:0;}
.flow-item::before{
  content:"";position:absolute;left:-24px;top:6px;width:15px;height:15px;border-radius:50%;
  background:var(--c-surface);border:2px solid var(--c-line);
  transition:border-color .28s var(--ease),background-color .28s var(--ease);
}
.flow-item:hover::before{border-color:var(--c-accent);background:var(--c-accent);}
.flow-item h3{font-size:18px;font-weight:700;margin-bottom:8px;}
.flow-item p{font-size:14px;color:var(--c-text-2);line-height:1.85;}
.flow-item .num{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.08em;
  color:var(--c-text-2);margin-bottom:8px;
}
.flow-visual{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--c-line);
  background:var(--c-surface);box-shadow:var(--sh-2);
}
.flow-visual img{width:100%;aspect-ratio:16/10;object-fit:cover;}

/* ---------- 数据条 ---------- */
.metric-strip{
  display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--c-line);
  border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;
}
@media(min-width:768px){.metric-strip{grid-template-columns:repeat(4,1fr);}}
.metric{background:var(--c-surface);padding:26px 22px;}
.metric .num{font-size:clamp(28px,3.6vw,40px);font-weight:800;letter-spacing:-.03em;line-height:1.1;}
.metric .num em{font-style:normal;font-size:16px;font-weight:700;color:var(--c-secondary);margin-left:4px;}
.metric .label{margin-top:8px;font-size:14px;color:var(--c-text-2);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{
  border:1px solid var(--c-line);border-radius:var(--r-md);background:var(--c-surface);
  margin-bottom:14px;overflow:hidden;transition:border-color .28s var(--ease);
}
.faq-item[open]{border-color:var(--c-accent);}
.faq-item summary{
  cursor:pointer;list-style:none;padding:20px 52px 20px 22px;position:relative;
  font-size:16px;font-weight:600;line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";position:absolute;left:22px;top:29px;width:0;height:0;
  border-left:6px solid var(--c-accent);border-top:5px solid transparent;border-bottom:5px solid transparent;
  transition:transform .28s var(--ease);
  transform-origin:2px 5px;
}
.faq-item[open] summary::before{transform:rotate(90deg);}
.faq-item summary::after{
  content:"";position:absolute;right:22px;top:24px;width:16px;height:16px;
  border-right:2px solid var(--c-text-2);border-bottom:2px solid var(--c-text-2);
  transform:rotate(45deg);transition:transform .28s var(--ease);
}
.faq-item[open] summary::after{transform:rotate(-135deg);}
.faq-answer{padding:0 22px 22px 40px;border-left:3px solid transparent;transition:border-color .28s var(--ease);}
.faq-item[open] .faq-answer{border-left-color:var(--c-accent);}
.faq-answer p{font-size:15px;line-height:1.9;color:var(--c-text-2);}

/* ---------- 分页 / 相关分类 ---------- */
.pager{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:34px;}
.pager a,.pager span{
  min-width:38px;height:38px;padding:0 14px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--c-line);border-radius:var(--r-sm);font-size:14px;background:var(--c-surface);
  color:var(--c-text-2);transition:border-color .18s var(--ease),color .18s var(--ease);
}
.pager a:hover{border-color:var(--c-ink);color:var(--c-text);}
.pager .is-current{background:var(--c-ink);border-color:var(--c-ink);color:#fff;font-weight:600;}
.related-grid{display:grid;grid-template-columns:1fr;gap:18px;margin-top:26px;}
@media(min-width:768px){.related-grid{grid-template-columns:repeat(2,1fr);}}
.related-card{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 24px;border:1px solid var(--c-line);border-radius:var(--r-md);
  background:var(--c-surface);transition:transform .28s var(--ease),border-color .28s var(--ease);
}
.related-card:hover{transform:translateY(-2px);border-color:var(--c-accent);}
.related-card h3{font-size:17px;font-weight:700;margin-bottom:6px;}
.related-card p{font-size:14px;color:var(--c-text-2);}
.related-card .arrow{font-size:20px;color:var(--c-secondary);flex-shrink:0;}

/* ---------- 结尾 CTA ---------- */
.final-cta{
  position:relative;overflow:hidden;background:var(--c-ink);color:#F2F3EF;
  padding:clamp(56px,8vw,100px) 0;text-align:center;
}
.final-cta::before{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(90deg,rgba(255,255,255,.045) 0 1px,transparent 1px 72px);
}
.final-cta::after{
  content:"";position:absolute;width:520px;height:520px;left:50%;top:-260px;transform:translateX(-50%);
  border-radius:50%;background:radial-gradient(circle,rgba(201,255,61,.14),transparent 70%);
}
.final-cta .inner{position:relative;z-index:2;max-width:720px;margin:0 auto;}
.final-cta h2{font-size:clamp(24px,3.4vw,40px);font-weight:800;line-height:1.24;letter-spacing:-.02em;}
.final-cta p{margin-top:16px;color:rgba(255,255,255,.66);font-size:16px;}
.final-cta .actions{margin-top:30px;display:flex;justify-content:center;gap:12px;flex-wrap:wrap;}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:80;
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 20px;border-radius:var(--r-pill);
  background:var(--c-accent);color:var(--c-ink);font-weight:700;font-size:15px;
  box-shadow:0 14px 30px -14px rgba(201,255,61,.9);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s;
}
.float-cta.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta svg{width:16px;height:16px;stroke:var(--c-ink);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.62);padding:clamp(48px,7vw,80px) 0 26px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px;}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);gap:32px;}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;}}
.footer-col h3{font-size:15px;font-weight:700;color:#F2F3EF;margin-bottom:16px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#F2F3EF;font-weight:800;font-size:17px;margin-bottom:14px;}
.footer-about{font-size:14px;line-height:1.9;color:rgba(255,255,255,.55);max-width:340px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.62);transition:color .18s var(--ease);}
.footer-col ul a:hover{color:var(--c-accent);}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.45);
}

/* ---------- 滚动进入动效 ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .52s var(--ease),transform .52s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media(max-width:1279px){
  .search-box{width:180px;}
  .search-box:focus-within{width:240px;}
}
@media(max-width:1023px){
  .nav-main,.header-right .search-box,.header-right .btn-ghost{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-right{gap:8px;}
}
@media(max-width:767px){
  .header-right .btn-primary{display:none;}
  .page-hero{min-height:34vh;}
  .hero-actions .btn{width:100%;}
  .metric{padding:22px 18px;}
  .grid-divider{padding:18px 20px;}
  .float-cta{
    right:0;left:0;bottom:0;border-radius:0;justify-content:center;
    padding:calc(14px) 20px calc(14px + env(safe-area-inset-bottom));
    height:56px;transform:translateY(100%);
  }
  .float-cta.is-show{transform:translateY(0);}
  body{padding-bottom:0;}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *{transition:none!important;animation:none!important;}
  .reveal{opacity:1;transform:none;}
}