/* roulang page: index */
:root{
  --ink:#101015;
  --ink-soft:#2A2B33;
  --muted:#7A7A85;
  --paper:#F7F6F3;
  --card:#FFFFFF;
  --line:#E7E4DE;
  --brand:#12E1B8;
  --brand-deep:#0BB894;
  --accent:#FF7A2F;
  --dark-bg:#101015;
  --dark-text:#F2F2F0;
  --dark-muted:#9A9AA5;
  --shadow-sm:0 1px 2px rgba(16,16,21,.05);
  --shadow-md:0 10px 30px -12px rgba(16,16,21,.18);
  --radius-s:10px;
  --radius-m:16px;
  --radius-l:22px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink-soft);
  background:var(--paper);
  overflow-x:hidden;
  padding-bottom:96px;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
::selection{background:var(--brand);color:var(--ink)}
:focus-visible{outline:3px solid rgba(18,225,184,.45);outline-offset:2px;border-radius:8px}

.container{max-width:var(--container);margin:0 auto;padding:0 20px;width:100%}
@media (min-width:768px){.container{padding:0 32px}}
@media (min-width:1024px){.container{padding:0 40px}}

/* ---------- 顶栏导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,246,243,.82);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
  backdrop-filter:saturate(150%) blur(6px);
}
.site-header.is-scrolled{
  background:rgba(247,246,243,.94);
  border-bottom-color:var(--line);
  box-shadow:0 1px 0 rgba(16,16,21,.02);
}
.header-inner{display:flex;align-items:center;gap:16px;height:68px}
@media (min-width:1024px){.header-inner{height:72px;gap:28px}}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;min-height:44px}
.brand-mark{
  width:26px;height:26px;border-radius:9px;
  background:var(--brand);
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.brand-mark svg{width:15px;height:15px;stroke:var(--ink);fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.02em;color:var(--ink);white-space:nowrap}
@media (min-width:1024px){.brand-text{font-size:18px}}
.main-nav{display:none;align-items:center;gap:4px;margin-left:8px}
@media (min-width:1024px){.main-nav{display:flex}}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:40px;
  padding:0 14px;border-radius:999px;font-size:15px;color:var(--ink-soft);
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{background:rgba(16,16,21,.05);color:var(--ink)}
.nav-link.active{color:var(--ink);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;
  background:var(--brand);border-radius:2px;
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.menu-btn{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;border:1px solid var(--line);background:var(--card);cursor:pointer;
  transition:border-color .2s ease,background .2s ease;
}
.menu-btn:hover{border-color:rgba(18,225,184,.6)}
.menu-btn svg{width:20px;height:20px;stroke:var(--ink);stroke-width:1.9;fill:none;stroke-linecap:round}
@media (min-width:1024px){.menu-btn{display:none}}

/* 抽屉菜单 */
.drawer{
  position:fixed;inset:0;z-index:80;background:var(--paper);
  padding:22px 20px calc(32px + env(safe-area-inset-bottom));
  display:flex;flex-direction:column;gap:8px;
  transform:translateY(-12px);opacity:0;visibility:hidden;
  transition:opacity .25s ease,transform .25s ease,visibility .25s;
  overflow-y:auto;
}
.drawer.open{opacity:1;transform:none;visibility:visible}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:var(--card);
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
}
.drawer-close svg{width:18px;height:18px;stroke:var(--ink);stroke-width:2;fill:none;stroke-linecap:round}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:56px;padding:0 18px;border-radius:14px;background:var(--card);
  border:1px solid var(--line);font-size:17px;font-weight:600;color:var(--ink);
  transition:border-color .2s ease,transform .2s ease;
}
.drawer-link:hover{border-color:rgba(18,225,184,.6);transform:translateY(-2px)}
.drawer-link span{font-size:13px;font-weight:400;color:var(--muted)}

/* ---------- 按钮与标签 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;border:1px solid transparent;
  font-size:16px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
@media (max-width:767px){.btn{height:52px;width:100%}}
.btn-primary{background:var(--brand);color:var(--ink);box-shadow:var(--shadow-sm)}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0);opacity:.92}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--paper);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 18px;font-size:14.5px}
@media (max-width:767px){.btn-sm{height:44px;width:auto;padding:0 16px}}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
@media (max-width:767px){.btn-row{flex-direction:column}}
.text-link{
  color:var(--ink);font-weight:600;
  text-decoration:underline;text-decoration-color:var(--brand);text-decoration-thickness:2px;
  text-underline-offset:4px;transition:color .2s ease,text-decoration-color .2s ease;
}
.text-link:hover{color:var(--brand-deep);text-decoration-color:var(--brand-deep)}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 11px;border-radius:999px;
  background:rgba(18,225,184,.14);color:#0a7f67;font-size:12.5px;font-weight:600;letter-spacing:.02em;
  white-space:nowrap;
}
.tag-outline{background:transparent;border:1px solid var(--line);color:var(--muted);font-weight:500}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  letter-spacing:.14em;color:var(--brand-deep);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--brand);border-radius:2px}

/* ---------- 通用板块 ---------- */
.section{padding:56px 0}
@media (min-width:1024px){.section{padding:88px 0}}
.section-dark{background:var(--dark-bg);color:var(--dark-text)}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:28px;flex-wrap:wrap;
}
.section-title{font-size:clamp(24px,3.4vw,34px);font-weight:700;letter-spacing:-.02em;color:var(--ink);line-height:1.2}
.section-dark .section-title{color:var(--dark-text)}
.section-sub{margin-top:10px;font-size:15px;color:var(--muted);max-width:640px}
.section-dark .section-sub{color:var(--dark-muted)}

/* ---------- Hero ---------- */
.hero{padding:40px 0 56px}
@media (min-width:1024px){.hero{padding:56px 0 88px;min-height:clamp(520px,78vh,700px);display:flex;align-items:center}}
.hero-grid{display:grid;gap:40px;align-items:center}
@media (min-width:1024px){.hero-grid{grid-template-columns:1.08fr .92fr;gap:56px}}
.hero h1{
  font-size:clamp(30px,5vw,56px);font-weight:800;letter-spacing:-.02em;line-height:1.15;color:var(--ink);
}
.hero h1 em{font-style:normal;color:var(--brand-deep)}
.hero-lead{margin-top:20px;font-size:17px;line-height:1.85;color:var(--ink-soft);max-width:34em}
.pill-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.pill{
  display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 14px;border-radius:999px;
  border:1px solid var(--line);background:var(--card);font-size:13.5px;color:var(--ink-soft);
  box-shadow:var(--shadow-sm);
}
.pill b{color:var(--ink);font-weight:700}
.pill i{width:7px;height:7px;border-radius:50%;background:var(--brand);display:inline-block}
.hero-stage{position:relative;display:flex;justify-content:center}
@media (min-width:1024px){.hero-stage{justify-content:flex-end;padding-right:26px}}
.phone-card{
  position:relative;width:min(260px,80vw);aspect-ratio:9/16;border-radius:var(--radius-l);
  overflow:hidden;background:var(--paper);border:1px solid var(--line);box-shadow:var(--shadow-md);
}
@media (min-width:1024px){.phone-card{width:340px}}
.phone-card img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.phone-card:hover img{transform:scale(1.04)}
.phone-card::after{
  content:"";position:absolute;inset:auto 0 0 0;height:58%;
  background:linear-gradient(180deg,rgba(16,16,21,0) 0%,rgba(16,16,21,.78) 100%);
}
.phone-meta{position:absolute;left:16px;right:16px;bottom:16px;z-index:2;color:#fff}
.phone-meta h3{font-size:15px;font-weight:600;line-height:1.4}
.phone-meta p{margin-top:4px;font-size:12.5px;color:rgba(255,255,255,.72)}
.duration{
  position:absolute;top:14px;right:14px;z-index:2;height:26px;padding:0 10px;border-radius:999px;
  background:var(--accent);color:#fff;font-size:12px;font-weight:700;display:inline-flex;align-items:center;
}
.play{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);z-index:3;
  width:56px;height:56px;border-radius:50%;background:var(--brand);
  display:flex;align-items:center;justify-content:center;box-shadow:0 8px 20px -8px rgba(16,16,21,.5);
  transition:transform .25s ease;
}
.play::before{content:"";border-left:15px solid var(--ink);border-top:10px solid transparent;border-bottom:10px solid transparent;margin-left:4px}
.phone-card:hover .play{transform:translate(-50%,-50%) scale(1.06)}
.phone-mini{
  position:absolute;left:-6px;bottom:-22px;width:150px;aspect-ratio:9/16;border-radius:18px;
  overflow:hidden;border:1px solid var(--line);background:var(--paper);box-shadow:var(--shadow-md);
  display:none;
}
@media (min-width:1024px){.phone-mini{display:block}}
.phone-mini img{width:100%;height:100%;object-fit:cover}

/* ---------- 横滑带 ---------- */
.strip{
  display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:4px 0 14px;margin:0 -20px;padding-left:20px;padding-right:20px;
  -ms-overflow-style:none;scrollbar-width:none;
}
.strip::-webkit-scrollbar{display:none}
@media (min-width:768px){.strip{margin:0;padding-left:0;padding-right:0}}
.clip{
  flex:0 0 auto;width:158px;scroll-snap-align:start;
  border-radius:var(--radius-l);overflow:hidden;position:relative;
  background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.clip:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:rgba(18,225,184,.5)}
@media (min-width:768px){.clip{width:190px}}
@media (min-width:1024px){.clip{width:224px}}
.clip-thumb{position:relative;aspect-ratio:9/16;overflow:hidden;background:var(--paper)}
.clip-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.clip:hover .clip-thumb img{transform:scale(1.04)}
.clip-thumb::after{
  content:"";position:absolute;inset:auto 0 0 0;height:56px;
  background:linear-gradient(180deg,rgba(16,16,21,0) 0%,rgba(16,16,21,.72) 100%);
}
.clip-play{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) scale(.9);
  width:48px;height:48px;border-radius:50%;background:var(--brand);
  display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .22s ease,transform .22s ease;
}
.clip-play::before{content:"";border-left:13px solid var(--ink);border-top:9px solid transparent;border-bottom:9px solid transparent;margin-left:3px}
.clip:hover .clip-play{opacity:1;transform:translate(-50%,-50%) scale(1)}
.clip-body{padding:12px 12px 14px}
.clip-body h3{font-size:14.5px;font-weight:600;color:var(--ink);line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:42px}
.clip-meta{margin-top:8px;display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:12px;color:var(--muted)}
.clip-flag{color:var(--accent);font-weight:700}

/* ---------- 种草清单 ---------- */
.check-list{border-top:1px solid var(--line)}
.check-row{
  display:grid;grid-template-columns:auto 1fr;gap:14px 20px;align-items:start;
  padding:20px 8px;border-bottom:1px solid var(--line);
  transition:background .22s ease;
}
.check-row:hover{background:rgba(255,255,255,.85)}
@media (min-width:768px){.check-row{grid-template-columns:96px 1fr auto;gap:24px;align-items:center;padding:24px 12px;min-height:104px}}
.check-num{
  font-size:24px;font-weight:800;color:var(--line);letter-spacing:-.02em;font-variant-numeric:tabular-nums;
  line-height:1;transition:color .22s ease;
}
@media (min-width:768px){.check-num{font-size:46px}}
.check-row:hover .check-num{color:var(--brand)}
.check-main h3{font-size:18px;font-weight:600;color:var(--ink);line-height:1.4}
.check-main p{margin-top:6px;font-size:14px;color:var(--muted);max-width:34em}
.check-tags{display:flex;gap:8px;flex-wrap:wrap;grid-column:2}
@media (min-width:768px){.check-tags{grid-column:auto;justify-content:flex-end}}

/* ---------- 口碑 ---------- */
.review{
  flex:0 0 auto;width:270px;scroll-snap-align:start;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-m);
  padding:20px;box-shadow:var(--shadow-sm);
  display:flex;flex-direction:column;gap:12px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.review:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:rgba(18,225,184,.5)}
.stars{display:flex;gap:3px}
.stars svg{width:16px;height:16px;fill:var(--brand)}
.stars svg.off{fill:var(--line)}
.review p{font-size:14px;line-height:1.8;color:var(--ink-soft)}
.review-foot{display:flex;align-items:center;gap:10px;margin-top:auto}
.avatar{
  width:40px;height:40px;border-radius:50%;background:rgba(18,225,184,.18);color:#0a7f67;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;flex:0 0 auto;
}
.review-foot span{font-size:13px;color:var(--muted)}

/* ---------- 资讯列表 ---------- */
.news-grid{display:grid;gap:20px}
@media (min-width:768px){.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;gap:12px;height:100%;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-m);
  padding:22px;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:rgba(18,225,184,.5)}
.news-card h3{
  font-size:16.5px;font-weight:600;color:var(--ink);line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s ease;
}
.news-card:hover h3{color:var(--brand-deep)}
.news-card p{
  font-size:14px;color:var(--muted);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
}
.news-time{font-size:13px;color:var(--muted)}
.empty{
  border:1px dashed var(--line);border-radius:var(--radius-m);background:var(--card);
  padding:64px 24px;display:flex;flex-direction:column;align-items:center;gap:16px;text-align:center;
}
.empty svg{width:48px;height:48px;stroke:var(--muted);stroke-width:1.4;fill:none;stroke-linecap:round;stroke-linejoin:round}
.empty p{font-size:14px;color:var(--muted)}

/* ---------- 数据条 ---------- */
.stats{display:grid;gap:20px;grid-template-columns:repeat(2,1fr)}
@media (min-width:768px){.stats{grid-template-columns:repeat(4,1fr)}}
.stat{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-m);
  padding:24px 20px;box-shadow:var(--shadow-sm);
}
.stat b{display:block;font-size:30px;font-weight:800;color:var(--ink);letter-spacing:-.02em;font-variant-numeric:tabular-nums;line-height:1.1}
.stat span{display:block;margin-top:8px;font-size:13.5px;color:var(--muted)}

/* ---------- 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:16px;
  min-height:56px;padding:18px 4px;background:none;border:0;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink);cursor:pointer;line-height:1.5;
}
.faq-q:hover{color:var(--brand-deep)}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1.5px solid var(--ink);
  display:flex;align-items:center;justify-content:center;position:relative;
  transition:transform .24s ease,border-color .24s ease;
}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--ink);border-radius:2px;transition:background .24s ease}
.faq-icon::before{width:11px;height:1.5px}
.faq-icon::after{width:1.5px;height:11px}
.faq-item.open .faq-icon{transform:rotate(45deg);border-color:var(--brand-deep)}
.faq-item.open .faq-icon::before,.faq-item.open .faq-icon::after{background:var(--brand-deep)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-a p{padding:0 4px 22px;font-size:15px;color:var(--ink-soft);max-width:44em}

/* ---------- 深色 CTA ---------- */
.cta-dark{
  position:relative;overflow:hidden;background:var(--dark-bg);color:var(--dark-text);
  border-radius:24px;padding:48px 24px;
}
@media (min-width:1024px){.cta-dark{padding:72px 56px}}
.cta-dark::before{
  content:"";position:absolute;top:-40%;right:-10%;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(18,225,184,.16) 0%,rgba(18,225,184,0) 70%);
  pointer-events:none;
}
.cta-dark h2{position:relative;font-size:clamp(24px,3.6vw,36px);font-weight:700;letter-spacing:-.02em;line-height:1.25}
.cta-dark p{position:relative;margin-top:14px;font-size:16px;color:var(--dark-muted);max-width:36em}
.cta-dark .btn-row{position:relative;margin-top:28px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--dark-muted);margin-top:16px;padding:56px 0 32px}
@media (min-width:1024px){.site-footer{padding:72px 0 36px}}
.footer-grid{display:grid;gap:32px}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}}
.footer-brand .brand-text{color:var(--dark-text)}
.footer-brand p{margin-top:14px;font-size:14px;line-height:1.85;max-width:32em}
.footer-col h4{font-size:14px;font-weight:700;color:var(--dark-text);letter-spacing:.04em;margin-bottom:14px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;transition:color .2s ease}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;
}

/* ---------- 底部 Tab ---------- */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:rgba(255,255,255,.96);border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
  backdrop-filter:saturate(150%) blur(6px);
}
.tabbar-inner{display:grid;grid-template-columns:repeat(4,1fr);max-width:560px;margin:0 auto;height:64px}
.tab-item{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  font-size:11.5px;color:var(--muted);transition:color .2s ease;
}
.tab-item svg{width:24px;height:24px;stroke:currentColor;stroke-width:1.7;fill:none;stroke-linecap:round;stroke-linejoin:round}
.tab-item.active{color:var(--brand-deep);font-weight:600}
.tab-item.active::before{content:"";position:absolute;top:0;width:26px;height:2px;border-radius:2px;background:var(--brand)}
@media (min-width:768px){.tabbar{display:none}}

/* ---------- 移动悬浮条 ---------- */
.float-cta{
  position:fixed;left:14px;right:14px;z-index:69;
  bottom:calc(76px + env(safe-area-inset-bottom));
  display:none;align-items:center;gap:12px;
  height:60px;padding:6px 6px 6px 18px;border-radius:999px;
  background:var(--ink);color:var(--dark-text);box-shadow:var(--shadow-md);
}
.float-cta strong{display:block;font-size:13.5px;font-weight:700;color:var(--dark-text)}
.float-cta span{display:block;font-size:12px;color:var(--dark-muted)}
.float-cta .btn{margin-left:auto;height:48px;padding:0 20px;font-size:14.5px;width:auto}
@media (max-width:767px){.float-cta{display:flex}}

/* ---------- 动效 ---------- */
.js .reveal{opacity:0;transform:translateY(12px)}
.js .reveal.is-in{
  opacity:1;transform:none;
  transition:opacity .42s cubic-bezier(.22,.61,.36,1),transform .42s cubic-bezier(.22,.61,.36,1);
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .js .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}
.divider{height:1px;background:var(--line);border:0;margin:0}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* roulang page: article */
:root{
    --ink:#101015;
    --ink-soft:#2A2B33;
    --muted:#7A7A85;
    --paper:#F7F6F3;
    --card:#FFFFFF;
    --line:#E7E4DE;
    --brand:#12E1B8;
    --brand-deep:#0BB894;
    --accent:#FF7A2F;
    --dark-bg:#101015;
    --dark-text:#F2F2F0;
    --dark-muted:#9A9AA5;
    --r-sm:10px;
    --r-card:16px;
    --r-cover:22px;
    --r-pill:999px;
    --shadow-sm:0 1px 2px rgba(16,16,21,.05);
    --shadow-md:0 10px 30px -12px rgba(16,16,21,.18);
    --ease:cubic-bezier(.22,.61,.36,1);
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--paper);
    color:var(--ink-soft);
    font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
    padding-bottom:96px;
  }
  img{max-width:100%;display:block;border-radius:12px;border:1px solid var(--line);}
  a{color:inherit;text-decoration:none;background:transparent;}
  a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
    outline:none;box-shadow:0 0 0 3px rgba(18,225,184,.35);border-radius:var(--r-sm);
  }
  button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
  ul{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.02em;}
  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
  @media (min-width:768px){.container{padding:0 32px;}}
  @media (min-width:1024px){.container{padding:0 40px;}}

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(247,246,243,.86);
    backdrop-filter:saturate(180%) blur(12px);
    border-bottom:1px solid transparent;
    transition:background .25s var(--ease),border-color .25s var(--ease);
  }
  .site-header.is-scrolled{background:rgba(247,246,243,.94);border-bottom-color:var(--line);}
  .header-inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:20px;}
  .brand{display:inline-flex;align-items:center;gap:10px;min-height:44px;}
  .brand-mark{width:26px;height:26px;display:inline-flex;align-items:center;justify-content:center;color:var(--brand);}
  .brand-mark svg{width:26px;height:26px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linejoin:round;}
  .brand-text{font-size:17px;font-weight:800;color:var(--ink);letter-spacing:-.01em;}
  .brand-text em{font-style:normal;color:var(--brand-deep);}
  .main-nav{display:none;align-items:center;gap:6px;}
  .main-nav .nav-link{
    display:inline-flex;align-items:center;height:40px;padding:0 14px;border-radius:var(--r-pill);
    font-size:15px;color:var(--ink-soft);position:relative;transition:color .2s var(--ease),background .2s var(--ease);
  }
  .main-nav .nav-link:hover{color:var(--ink);background:rgba(16,16,21,.05);}
  .main-nav .nav-link.active{color:var(--ink);font-weight:600;}
  .main-nav .nav-link.active::after{
    content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;background:var(--brand);
  }
  .header-cta{display:none;}
  .hamburger{
    width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
    border:1px solid var(--line);border-radius:var(--r-sm);background:var(--card);color:var(--ink);
  }
  .hamburger svg{width:22px;height:22px;stroke:currentColor;stroke-width:1.8;fill:none;stroke-linecap:round;}
  @media (min-width:1024px){
    .main-nav{display:flex;}
    .header-cta{display:inline-flex;}
    .hamburger{display:none;}
  }
  .drawer{
    position:fixed;inset:0;z-index:90;background:var(--paper);
    display:none;flex-direction:column;padding:24px 20px 40px;
  }
  .drawer.is-open{display:flex;}
  .drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;}
  .drawer a.drawer-link{
    display:flex;align-items:center;justify-content:space-between;
    padding:18px 4px;border-bottom:1px solid var(--line);
    font-size:18px;font-weight:600;color:var(--ink);
  }
  .drawer a.drawer-link span{color:var(--muted);font-size:14px;font-weight:400;}
  .drawer .btn{margin-top:24px;justify-content:center;}

  /* ---------- 按钮 ---------- */
  .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;letter-spacing:.01em;
    transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
  }
  .btn-primary{background:var(--brand);color:var(--ink);}
  .btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px);}
  .btn-primary:active{transform:translateY(0);}
  .btn-ghost{border:1px solid var(--ink);color:var(--ink);background:transparent;}
  .btn-ghost:hover{background:var(--ink);color:var(--paper);transform:translateY(-2px);}
  .btn-sm{height:40px;padding:0 18px;font-size:14px;}

  /* ---------- 面包屑 ---------- */
  .breadcrumb{padding:28px 0 0;}
  .breadcrumb ol{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-deep);}
  .breadcrumb .sep{color:var(--line);}
  .breadcrumb .current{color:var(--muted);}

  /* ---------- 文章头 ---------- */
  .article-head{padding:24px 0 8px;}
  .pill{
    display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;
    border-radius:var(--r-pill);background:rgba(18,225,184,.14);color:#07735d;
    font-size:13px;font-weight:600;letter-spacing:.02em;
  }
  .article-head h1{
    margin:16px 0 14px;font-size:clamp(28px,4.4vw,44px);font-weight:800;line-height:1.2;letter-spacing:-.02em;
  }
  .meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:13px;color:var(--muted);}
  .meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--line);}
  .head-rule{height:1px;background:var(--line);margin-top:26px;}

  /* ---------- 正文阅读区 ---------- */
  .reading{max-width:740px;margin:0 auto;}
  .article-body{padding:36px 0 8px;font-size:17px;line-height:1.9;color:var(--ink-soft);}
  .article-body > * + *{margin-top:20px;}
  .article-body p{margin:0 0 20px;max-width:34em;}
  .article-body h2{font-size:26px;font-weight:700;margin:40px 0 14px;line-height:1.35;}
  .article-body h3{font-size:19px;font-weight:600;margin:30px 0 12px;}
  .article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px;list-style:disc;}
  .article-body ol{list-style:decimal;}
  .article-body li{margin-bottom:8px;}
  .article-body a{color:var(--ink);border-bottom:2px solid var(--brand);padding-bottom:1px;transition:color .2s var(--ease),border-color .2s var(--ease);}
  .article-body a:hover{color:var(--brand-deep);border-color:var(--brand-deep);}
  .article-body img{margin:24px auto;max-width:100%;height:auto;}
  .article-body blockquote{
    margin:24px 0;padding:16px 20px;border-left:3px solid var(--brand);
    background:var(--card);border-radius:var(--r-sm);color:var(--ink-soft);font-size:16px;
  }
  .article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;}
  .article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left;}
  .article-body th{background:var(--card);font-weight:600;}
  .article-body figure{margin:24px 0;}
  .article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px;}
  .empty-state{
    text-align:center;padding:64px 20px;background:var(--card);
    border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-sm);
  }
  .empty-state svg{width:48px;height:48px;margin:0 auto 18px;stroke:var(--muted);stroke-width:1.5;fill:none;stroke-linecap:round;}
  .empty-state p{font-size:14px;color:var(--muted);margin:0 0 20px;}

  /* ---------- 标签与返回 ---------- */
  .tag-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:40px;padding-top:24px;border-top:1px solid var(--line);}
  .tag-row .label{font-size:13px;color:var(--muted);margin-right:4px;}
  .tag{
    display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-pill);
    border:1px solid var(--line);background:var(--card);font-size:13px;color:var(--ink-soft);
    transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
  }
  .tag:hover{border-color:rgba(18,225,184,.6);color:var(--brand-deep);transform:translateY(-2px);}
  .back-row{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;margin-top:28px;}
  .link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--ink);}
  .link-arrow svg{width:16px;height:16px;stroke:currentColor;stroke-width:1.8;fill:none;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s var(--ease);}
  .link-arrow:hover svg{transform:translateX(3px);}
  .link-arrow:hover{color:var(--brand-deep);}

  /* ---------- 相关推荐 ---------- */
  .section{padding:72px 0;}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;}
  .section-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;}
  .section-head .more{font-size:14px;color:var(--muted);transition:color .2s var(--ease);}
  .section-head .more:hover{color:var(--brand-deep);}
  .rel-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
  @media (min-width:768px){.rel-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
  .rel-card{
    display:flex;flex-direction:column;overflow:hidden;
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--shadow-sm);
    transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;
  }
  .rel-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:rgba(18,225,184,.4);}
  .rel-thumb{position:relative;aspect-ratio:9/16;background:var(--paper);overflow:hidden;}
  .rel-thumb img{width:100%;height:100%;object-fit:cover;border:0;border-radius:0;transition:transform .6s var(--ease);}
  .rel-card:hover .rel-thumb img{transform:scale(1.04);}
  .rel-thumb .mask{position:absolute;inset:auto 0 0 0;height:56px;background:linear-gradient(to top,rgba(16,16,21,.72),rgba(16,16,21,0));}
  .rel-thumb .dur{
    position:absolute;top:10px;right:10px;height:24px;padding:0 10px;border-radius:var(--r-pill);
    background:var(--accent);color:#fff;font-size:12px;font-weight:600;display:inline-flex;align-items:center;
  }
  .rel-body{padding:14px 14px 16px;}
  .rel-body h3{font-size:15px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .2s var(--ease);}
  .rel-card:hover .rel-body h3{color:var(--brand-deep);}
  .rel-body .t{margin-top:8px;font-size:13px;color:var(--muted);}

  /* ---------- 评论区 ---------- */
  .comment-box{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--shadow-sm);padding:24px;
  }
  .comment-box .lead{font-size:14px;color:var(--muted);margin:0 0 20px;}
  .field{margin-bottom:14px;}
  .field label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px;}
  .field input,.field textarea{
    width:100%;border:1px solid var(--line);border-radius:12px;background:var(--paper);
    padding:12px 14px;font:inherit;font-size:15px;color:var(--ink);min-height:48px;
    transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .field textarea{min-height:110px;resize:vertical;}
  .field input:focus,.field textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(18,225,184,.22);outline:none;}
  .form-note{font-size:13px;color:var(--muted);margin-top:12px;}

  /* ---------- CTA 条 ---------- */
  .cta-strip{
    background:var(--dark-bg);border-radius:var(--r-card);color:var(--dark-text);
    padding:32px 24px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
    position:relative;overflow:hidden;
  }
  .cta-strip::after{
    content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
    background:radial-gradient(circle,rgba(18,225,184,.22),rgba(18,225,184,0) 70%);pointer-events:none;
  }
  .cta-strip h3{color:var(--dark-text);font-size:22px;font-weight:700;position:relative;}
  .cta-strip p{color:var(--dark-muted);font-size:14px;margin:8px 0 0;position:relative;}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--dark-bg);color:var(--dark-text);padding:56px 0 28px;margin-top:72px;}
  .footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
  @media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
  @media (min-width:1024px){.footer-grid{grid-template-columns:1.6fr repeat(3,1fr);gap:40px;}}
  .footer-brand .brand-text{color:var(--dark-text);}
  .footer-brand p{color:var(--dark-muted);font-size:14px;line-height:1.9;margin:16px 0 0;max-width:34em;}
  .footer-col h4{color:var(--dark-text);font-size:15px;font-weight:600;margin-bottom:16px;letter-spacing:0;}
  .footer-col li{margin-bottom:10px;}
  .footer-col a{color:var(--dark-muted);font-size:14px;transition:color .2s var(--ease);}
  .footer-col a:hover{color:var(--brand);}
  .footer-bottom{
    margin-top:40px;padding-top:20px;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(--dark-muted);
  }

  /* ---------- 底部 Tab ---------- */
  .tabbar{
    position:fixed;left:0;right:0;bottom:0;z-index:70;
    background:rgba(255,255,255,.96);backdrop-filter:blur(12px);
    border-top:1px solid var(--line);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .tabbar-inner{display:grid;grid-template-columns:repeat(4,1fr);max-width:560px;margin:0 auto;}
  .tab{
    position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
    min-height:56px;padding:8px 0 6px;font-size:11px;color:var(--muted);
    transition:color .2s var(--ease);
  }
  .tab svg{width:24px;height:24px;stroke:currentColor;stroke-width:1.6;fill:none;stroke-linecap:round;stroke-linejoin:round;}
  .tab.active{color:var(--brand-deep);font-weight:600;}
  .tab.active svg{stroke:var(--brand-deep);}
  .tab.active::before{
    content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
    width:22px;height:2px;border-radius:2px;background:var(--brand);
  }
  @media (min-width:1024px){.tabbar{display:none;}}

  /* ---------- 动效 ---------- */
  .reveal{opacity:0;transform:translateY(12px);transition:opacity .42s var(--ease),transform .42s var(--ease);}
  .reveal.is-visible{opacity:1;transform:translateY(0);}
  @media (prefers-reduced-motion:reduce){
    html{scroll-behavior:auto;}
    *,*::before,*::after{animation:none!important;transition:none!important;}
    .reveal{opacity:1;transform:none;}
  }

/* roulang page: category1 */
:root{
  --ink:#101015; --ink-soft:#2A2B33; --muted:#7A7A85;
  --paper:#F7F6F3; --card:#FFFFFF; --line:#E7E4DE;
  --brand:#12E1B8; --brand-deep:#0BB894; --accent:#FF7A2F;
  --dark-text:#F2F2F0; --dark-muted:#9A9AA5;
  --r-sm:10px; --r-card:16px; --r-poster:22px; --r-pill:999px;
  --shadow-sm:0 1px 2px rgba(16,16,21,.05);
  --shadow-md:0 10px 30px -12px rgba(16,16,21,.18);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;padding-bottom:96px;
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  background:var(--paper);color:var(--ink-soft);
  font-size:16px;line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.02em;line-height:1.25}
p{margin:0}
a{color:inherit;text-decoration:none}
ul{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea{font:inherit}
:focus-visible{outline:3px solid rgba(18,225,184,.45);outline-offset:2px;border-radius:6px}
.container{max-width:var(--container);margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}
@media (min-width:1024px){.container{padding:0 40px}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,246,243,.86);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:background .2s ease,border-color .2s ease;
}
.site-header.is-scrolled{background:rgba(247,246,243,.95);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;gap:16px;height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:800;font-size:17px;letter-spacing:-.01em;white-space:nowrap;flex:none}
.brand-mark{width:26px;height:26px;color:var(--brand);flex:none}
.brand-mark svg{width:100%;height:100%;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linejoin:round}
.main-nav{display:none}
.nav-link{position:relative;display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:var(--r-pill);font-size:15px;color:var(--ink-soft);transition:color .2s ease,background .2s ease}
.nav-link:hover{color:var(--ink);background:rgba(16,16,21,.05)}
.nav-link.active{color:var(--ink);font-weight:600}
.nav-link.active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--brand)}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.header-cta{display:none}
.menu-toggle{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:var(--r-pill);border:1px solid var(--line);background:#fff;color:var(--ink);transition:border-color .2s ease,color .2s ease}
.menu-toggle:hover{border-color:rgba(18,225,184,.55);color:var(--brand-deep)}
.menu-toggle svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round}
@media (min-width:1024px){
  .main-nav{display:flex;align-items:center;gap:2px;margin-left:26px}
  .header-actions{margin-left:0;gap:14px}
  .header-cta{display:inline-flex}
  .menu-toggle{display:none}
}

/* 移动端抽屉 */
.mobile-drawer{
  position:fixed;inset:0;z-index:90;background:var(--paper);
  transform:translateY(-101%);transition:transform .3s cubic-bezier(.22,.61,.36,1);
  display:flex;flex-direction:column;padding:20px 20px 32px;overflow-y:auto;
}
.mobile-drawer.open{transform:translateY(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;height:48px;margin-bottom:24px}
.drawer-close{width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:var(--r-pill);border:1px solid var(--line);background:#fff}
.drawer-close svg{width:18px;height:18px;fill:none;stroke:var(--ink);stroke-width:1.8;stroke-linecap:round}
.drawer-links{display:flex;flex-direction:column;gap:6px;margin-bottom:28px}
.drawer-link{display:flex;align-items:center;justify-content:space-between;min-height:56px;padding:0 18px;border-radius:14px;border:1px solid var(--line);background:#fff;font-size:16px;color:var(--ink)}
.drawer-link.active{border-color:rgba(18,225,184,.6);box-shadow:var(--shadow-sm)}
.drawer-link span.arrow{color:var(--muted);font-size:15px}

/* ---------- 按钮 ---------- */
.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;white-space:nowrap;border:1px solid transparent;
  transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease,opacity .2s ease;
}
.btn-primary{background:var(--brand);color:var(--ink)}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px)}
.btn-primary:active{transform:none;opacity:.92}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--paper)}
.btn-ghost.on-dark{border-color:rgba(242,242,240,.45);color:var(--dark-text)}
.btn-ghost.on-dark:hover{background:var(--dark-text);border-color:var(--dark-text);color:var(--ink)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
@media (max-width:767px){.btn{height:52px}}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--ink);
  border-bottom:2px solid var(--brand);padding-bottom:2px;
  transition:color .2s ease,border-color .2s ease;
}
.text-link:hover{color:var(--brand-deep);border-color:var(--brand-deep)}
.text-link i{font-style:normal;transition:transform .2s ease}
.text-link:hover i{transform:translateX(3px)}

/* ---------- 分类页头 ---------- */
.cat-hero{position:relative;overflow:hidden;background:var(--ink);color:var(--dark-text);padding:48px 0 56px}
.cat-hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;opacity:.32}
.cat-hero-glow{position:absolute;inset:0;background:radial-gradient(58% 68% at 18% 18%,rgba(18,225,184,.18),transparent 72%)}
.cat-hero-inner{position:relative;z-index:1;max-width:840px}
@media (min-width:1024px){.cat-hero{padding:68px 0 84px}}
.breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13px;color:var(--dark-muted);margin-bottom:20px}
.breadcrumb a{color:var(--dark-muted);transition:color .2s ease}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{opacity:.6}
.breadcrumb .cur{color:#C9C9D2}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.08em;color:var(--brand);font-weight:600}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--brand)}
.cat-hero h1{
  color:#fff;font-size:clamp(30px,5vw,52px);font-weight:800;line-height:1.15;
  letter-spacing:-.02em;margin:16px 0 16px;max-width:18em;
}
.cat-hero h1 em{font-style:normal;color:var(--brand)}
.cat-sub{font-size:16px;line-height:1.8;color:#C9C9D2;max-width:34em}
.cat-hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.cat-hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.pill-dark{display:inline-flex;align-items:center;gap:6px;height:32px;padding:0 14px;border-radius:var(--r-pill);border:1px solid rgba(255,255,255,.14);font-size:13px;color:#D6D6DC}

/* ---------- 通用板块 ---------- */
.section{padding:56px 0}
@media (min-width:1024px){.section{padding:88px 0}}
.section-tight{padding:44px 0}
@media (min-width:1024px){.section-tight{padding:64px 0}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:32px}
.section-head h2{font-size:clamp(24px,3.2vw,32px);font-weight:700}
.section-head .lead{margin-top:10px;font-size:15px;color:var(--muted);max-width:34em;line-height:1.8}

/* ---------- chips ---------- */
.chips{display:flex;gap:10px;overflow-x:auto;padding:2px 0 12px;scrollbar-width:none;-ms-overflow-style:none}
.chips::-webkit-scrollbar{display:none}
.chip{
  flex:none;display:inline-flex;align-items:center;height:40px;padding:0 18px;
  border-radius:var(--r-pill);border:1px solid var(--line);background:#fff;
  font-size:14px;color:var(--ink-soft);transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.chip:hover{border-color:rgba(18,225,184,.55);color:var(--ink)}
.chip.active{background:var(--ink);border-color:var(--ink);color:#fff}

/* ---------- 竖版卡片网格 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
@media (min-width:768px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}}
.poster-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-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.poster-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:rgba(18,225,184,.45)}
.poster-media{position:relative;aspect-ratio:9/16;background:var(--paper);overflow:hidden}
.poster-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.poster-card:hover .poster-media img{transform:scale(1.04)}
.poster-media::after{content:"";position:absolute;inset:auto 0 0 0;height:56px;background:linear-gradient(to top,rgba(16,16,21,.72),rgba(16,16,21,0))}
.poster-badge{
  position:absolute;top:10px;right:10px;z-index:2;
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  background:var(--accent);color:#fff;font-size:12px;font-weight:600;
}
.poster-cover-title{position:absolute;left:12px;right:12px;bottom:12px;z-index:2;color:#fff;font-size:13px;font-weight:600;line-height:1.4}
.poster-body{padding:12px 14px 16px}
.poster-title{
  font-size:15px;font-weight:600;color:var(--ink);line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s ease;
}
.poster-card:hover .poster-title{color:var(--brand-deep)}
.poster-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.tag{font-size:12px;line-height:1.8;color:var(--muted);border:1px solid var(--line);border-radius:var(--r-pill);padding:0 10px}

/* ---------- 横滑精选条 ---------- */
.rail{display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 0 12px;scrollbar-width:none;-ms-overflow-style:none}
.rail::-webkit-scrollbar{display:none}
.rail-item{
  flex:none;width:282px;scroll-snap-align:start;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 20px 20px;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.rail-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:rgba(18,225,184,.45)}
.rail-num{font-size:26px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1}
.rail-title{margin-top:14px;font-size:17px;font-weight:600;color:var(--ink);line-height:1.5}
.rail-desc{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.8}
.rail-foot{margin-top:16px;font-size:13px;color:var(--muted)}

/* ---------- 步骤流程 ---------- */
.steps{border-top:1px solid var(--line)}
.step{display:flex;gap:18px;align-items:flex-start;padding:26px 0;border-bottom:1px solid var(--line)}
.step-num{
  flex:none;width:52px;font-size:34px;font-weight:800;line-height:1;
  color:var(--line);font-variant-numeric:tabular-nums;transition:color .2s ease;
}
.step:hover .step-num{color:var(--brand)}
.step h3{font-size:18px;font-weight:600;margin-bottom:6px}
.step p{font-size:15px;color:var(--ink-soft);max-width:36em}
@media (max-width:519px){
  .step{gap:12px;padding:22px 0}
  .step-num{width:34px;font-size:24px}
}

/* ---------- 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:16px;
  min-height:56px;padding:18px 0;text-align:left;font-size:16px;font-weight:600;color:var(--ink);
}
.faq-icon{position:relative;width:18px;height:18px;flex:none}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--ink);border-radius:2px;transition:transform .24s ease,opacity .24s ease}
.faq-icon::before{left:0;top:8px;width:18px;height:1.5px}
.faq-icon::after{left:8px;top:0;width:1.5px;height:18px}
.faq-item.open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s cubic-bezier(.22,.61,.36,1)}
.faq-a p{padding:0 0 22px;font-size:15px;line-height:1.85;color:var(--ink-soft);max-width:44em}

/* ---------- CTA ---------- */
.cta-banner{
  position:relative;overflow:hidden;background:var(--ink);color:var(--dark-text);
  border-radius:var(--r-poster);padding:40px 24px;
}
.cta-banner::after{content:"";position:absolute;inset:0;background:radial-gradient(48% 70% at 85% 12%,rgba(18,225,184,.16),transparent 70%)}
.cta-inner{position:relative;z-index:1;display:flex;flex-direction:column;gap:24px}
.cta-banner h2{color:#fff;font-size:clamp(22px,3vw,30px);font-weight:700}
.cta-banner p{margin-top:12px;font-size:15px;color:#C9C9D2;max-width:36em}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
@media (min-width:1024px){
  .cta-banner{padding:56px 56px}
  .cta-inner{flex-direction:row;align-items:center;justify-content:space-between}
  .cta-actions{flex:none}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--dark-text);padding:56px 0 28px;margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:768px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}}
.footer-brand .brand{color:#fff;margin-bottom:14px}
.footer-brand p{font-size:14px;line-height:1.9;color:var(--dark-muted);max-width:32em}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--dark-muted);transition:color .2s ease}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);
  font-size:13px;color:var(--dark-muted);
}

/* ---------- 底部 Tab ---------- */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:flex;align-items:stretch;
  background:rgba(247,246,243,.96);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
}
.tab-item{
  position:relative;flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;
  padding:8px 0 10px;font-size:11px;color:var(--muted);
  transition:color .2s ease;
}
.tab-item svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;transition:stroke .2s ease,fill .2s ease}
.tab-item.active{color:var(--brand-deep);font-weight:600}
.tab-item.active svg{stroke:var(--brand);fill:rgba(18,225,184,.16)}
.tab-item.active::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:24px;height:2px;border-radius:2px;background:var(--brand)}
@media (min-width:768px){
  .tabbar{display:none}
  body{padding-bottom:0}
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s cubic-bezier(.22,.61,.36,1),transform .42s cubic-bezier(.22,.61,.36,1)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition-duration:.001ms!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
    --ink:#101015;
    --ink-soft:#2A2B33;
    --muted:#7A7A85;
    --paper:#F7F6F3;
    --card:#FFFFFF;
    --line:#E7E4DE;
    --brand:#12E1B8;
    --brand-deep:#0BB894;
    --accent:#FF7A2F;
    --dark-bg:#101015;
    --r-sm:10px;
    --r-md:16px;
    --r-poster:22px;
    --r-pill:999px;
    --shadow-sm:0 1px 2px rgba(16,16,21,.05);
    --shadow-md:0 10px 30px -12px rgba(16,16,21,.18);
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  .page-body{
    margin:0;
    font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;
    line-height:1.85;
    color:var(--ink-soft);
    background:var(--paper);
    -webkit-font-smoothing:antialiased;
  }
  .page-body h1,.page-body h2,.page-body h3,.page-body h4,.page-body p,.page-body figure{margin:0;}
  .page-body ul{margin:0;padding:0;list-style:none;}
  .page-body a{color:inherit;text-decoration:none;}
  .page-body img{max-width:100%;display:block;}
  .page-body button{font:inherit;cursor:pointer;}
  .page-body :focus-visible{outline:3px solid rgba(18,225,184,.45);outline-offset:2px;border-radius:8px;}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
  @media (min-width:768px){.container{padding:0 32px;}}
  @media (min-width:1024px){.container{padding:0 40px;}}

  .section{padding:56px 0;}
  @media (min-width:1024px){.section{padding:88px 0;}}
  .section-tight{padding:40px 0;}
  @media (min-width:1024px){.section-tight{padding:56px 0;}}

  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    height:30px;padding:0 14px;border-radius:var(--r-pill);
    background:#fff;border:1px solid var(--line);
    font-size:13px;font-weight:600;color:var(--ink-soft);
  }
  .eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);}

  .hero-title{
    font-size:clamp(30px,5vw,52px);
    font-weight:800;
    letter-spacing:-.02em;
    line-height:1.15;
    color:var(--ink);
  }
  .hero-title em{font-style:normal;color:var(--brand-deep);}
  .sec-title{
    font-size:clamp(24px,3vw,34px);
    font-weight:700;
    line-height:1.28;
    letter-spacing:-.01em;
    color:var(--ink);
  }
  .sub-title{font-size:18px;font-weight:600;color:var(--ink);}
  .lead{font-size:17px;line-height:1.85;color:var(--ink-soft);max-width:34em;}
  .muted-text{font-size:14px;color:var(--muted);}
  .tiny-text{font-size:13px;color:var(--muted);}

  .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;
    transition:transform .22s ease-out,background-color .22s ease-out,color .22s ease-out,border-color .22s ease-out;
    white-space:nowrap;min-height:48px;
  }
  .btn-primary{background:var(--brand);color:var(--ink);}
  .btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px);}
  .btn-primary:active{transform:translateY(0);}
  .btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink);}
  .btn-ghost:hover{background:var(--ink);color:var(--paper);}
  .btn-light{background:transparent;border-color:rgba(255,255,255,.28);color:#F2F2F0;}
  .btn-light:hover{background:#F2F2F0;color:var(--ink);border-color:#F2F2F0;}
  .btn-sm{height:44px;padding:0 20px;font-size:14px;}

  .link-underline{
    color:var(--ink);font-weight:600;
    border-bottom:2px solid var(--brand);padding-bottom:2px;
    transition:border-color .2s ease-out,color .2s ease-out;
  }
  .link-underline:hover{border-color:var(--brand-deep);color:var(--brand-deep);}

  .tag{
    display:inline-flex;align-items:center;height:26px;padding:0 10px;
    border-radius:var(--r-pill);background:#fff;border:1px solid var(--line);
    font-size:12px;color:var(--ink-soft);white-space:nowrap;
  }
  .tag-brand{background:rgba(18,225,184,.14);border-color:rgba(18,225,184,.4);color:#067a63;}
  .tag-accent{background:var(--accent);border-color:var(--accent);color:#fff;}

  /* ===== 顶部导航 ===== */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(247,246,243,.86);
    border-bottom:1px solid transparent;
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
    transition:background-color .25s ease-out,border-color .25s ease-out,box-shadow .25s ease-out;
  }
  .site-header.is-scrolled{
    background:rgba(247,246,243,.94);
    border-bottom-color:var(--line);
    box-shadow:0 1px 0 rgba(16,16,21,.02);
  }
  .header-inner{display:flex;align-items:center;gap:20px;height:72px;}
  .brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
  .brand-mark{width:26px;height:26px;color:var(--brand);display:inline-flex;flex:0 0 auto;}
  .brand-mark svg{width:100%;height:100%;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linejoin:round;stroke-linecap:round;}
  .brand-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-.01em;}

  .main-nav{display:none;align-items:center;gap:4px;margin-left:auto;}
  .nav-link{
    display:inline-flex;align-items:center;height:40px;padding:0 14px;
    border-radius:var(--r-pill);font-size:15px;color:var(--ink-soft);
    transition:background-color .2s ease-out,color .2s ease-out;
  }
  .nav-link:hover{background:rgba(16,16,21,.05);color:var(--ink);}
  .nav-link.active{background:rgba(18,225,184,.16);color:#067a63;font-weight:600;}

  .header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
  .header-cta{display:none;}
  .menu-toggle{
    display:inline-flex;align-items:center;justify-content:center;
    width:44px;height:44px;border-radius:12px;background:#fff;
    border:1px solid var(--line);color:var(--ink);
    transition:border-color .2s ease-out,transform .2s ease-out;
  }
  .menu-toggle:hover{border-color:var(--brand);transform:translateY(-1px);}
  .menu-toggle svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;}

  @media (min-width:1024px){
    .main-nav{display:flex;}
    .header-actions{margin-left:0;}
    .header-cta{display:inline-flex;}
    .menu-toggle{display:none;}
  }

  .drawer{
    position:fixed;inset:0;z-index:90;display:none;flex-direction:column;
    background:var(--paper);padding:20px;
  }
  .drawer.is-open{display:flex;}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;height:56px;}
  .drawer-close{
    width:44px;height:44px;border-radius:12px;background:#fff;border:1px solid var(--line);
    display:inline-flex;align-items:center;justify-content:center;color:var(--ink);
  }
  .drawer-close svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;}
  .drawer-nav{margin-top:28px;display:flex;flex-direction:column;gap:6px;}
  .drawer-nav a{
    display:flex;align-items:center;justify-content:space-between;
    min-height:56px;padding:0 18px;border-radius:14px;background:#fff;
    border:1px solid var(--line);font-size:17px;font-weight:600;color:var(--ink);
  }
  .drawer-nav a.active{border-color:rgba(18,225,184,.5);background:rgba(18,225,184,.1);color:#067a63;}
  .drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px;padding-bottom:20px;}

  /* ===== 分类页头 ===== */
  .hero{padding:44px 0 8px;}
  @media (min-width:1024px){.hero{padding:64px 0 16px;}}
  .hero-grid{display:grid;gap:36px;align-items:center;}
  @media (min-width:1024px){
    .hero-grid{grid-template-columns:1.1fr .9fr;gap:56px;}
  }
  .hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
  .badge-pill{
    display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 14px;
    border-radius:var(--r-pill);background:#fff;border:1px solid var(--line);
    font-size:13px;color:var(--ink-soft);
  }
  .badge-pill b{color:var(--ink);font-weight:700;font-variant-numeric:tabular-nums;}

  .hero-media{
    position:relative;border-radius:var(--r-poster);overflow:hidden;
    border:1px solid var(--line);background:#fff;box-shadow:var(--shadow-md);
    aspect-ratio:4/3;
  }
  .hero-media img{width:100%;height:100%;object-fit:cover;}
  .hero-media::after{
    content:"";position:absolute;inset:auto 0 0 0;height:56%;
    background:linear-gradient(to top,rgba(16,16,21,.86),rgba(16,16,21,0));
  }
  .hero-media-caption{
    position:absolute;left:20px;right:20px;bottom:18px;z-index:2;color:#fff;
  }
  .hero-media-caption strong{display:block;font-size:18px;font-weight:700;}
  .hero-media-caption span{font-size:13px;color:rgba(255,255,255,.78);}
  .duration-pill{
    position:absolute;top:14px;right:14px;z-index:2;
    height:26px;padding:0 10px;border-radius:var(--r-pill);
    background:var(--accent);color:#fff;font-size:12px;font-weight:600;
    display:inline-flex;align-items:center;
  }
  .play-btn{
    position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);z-index:2;
    width:60px;height:60px;border-radius:50%;background:var(--brand);
    display:inline-flex;align-items:center;justify-content:center;
    transition:transform .25s ease-out;box-shadow:0 8px 24px -10px rgba(16,16,21,.6);
  }
  .play-btn:hover{transform:translate(-50%,-50%) scale(1.06);}
  .play-btn::before{
    content:"";width:0;height:0;margin-left:4px;
    border-left:16px solid var(--ink);border-top:10px solid transparent;border-bottom:10px solid transparent;
  }

  /* ===== chips ===== */
  .chip-row{
    display:flex;gap:10px;overflow-x:auto;padding:4px 0 6px;
    scrollbar-width:none;-ms-overflow-style:none;
  }
  .chip-row::-webkit-scrollbar{display:none;}
  .chip{
    flex:0 0 auto;display:inline-flex;align-items:center;height:40px;padding:0 18px;
    border-radius:var(--r-pill);background:#fff;border:1px solid var(--line);
    font-size:14px;color:var(--ink-soft);white-space:nowrap;
    transition:border-color .2s ease-out,background-color .2s ease-out,color .2s ease-out;
  }
  .chip:hover{border-color:var(--brand);color:var(--ink);}
  .chip.is-active{background:var(--ink);border-color:var(--ink);color:#fff;}

  /* ===== 卡片网格 4:3 ===== */
  .card-grid{display:grid;grid-template-columns:1fr;gap:20px;}
  @media (min-width:640px){.card-grid{grid-template-columns:repeat(2,1fr);gap:24px;}}
  @media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,1fr);}}
  .card{
    display:block;background:var(--card);border:1px solid var(--line);
    border-radius:var(--r-md);overflow:hidden;box-shadow:var(--shadow-sm);
    transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;
  }
  .card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:rgba(18,225,184,.5);}
  .card-media{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--paper);}
  .card-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease-out;}
  .card:hover .card-media img{transform:scale(1.04);}
  .card-media .tag-accent{position:absolute;top:12px;left:12px;}
  .card-body{padding:18px 18px 20px;}
  .card-title{
    font-size:17px;font-weight:600;line-height:1.5;color:var(--ink);
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
    transition:color .2s ease-out;
  }
  .card:hover .card-title{color:var(--brand-deep);}
  .card-desc{
    margin-top:8px;font-size:14px;line-height:1.75;color:var(--muted);
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .card-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:14px;}

  /* ===== 编号清单 ===== */
  .num-list{border-top:1px solid var(--line);}
  .num-item{
    display:grid;grid-template-columns:52px 1fr;gap:16px;align-items:center;
    padding:20px 12px;border-bottom:1px solid var(--line);
    transition:background-color .2s ease-out;
  }
  @media (min-width:1024px){
    .num-item{grid-template-columns:88px 1fr auto;gap:24px;padding:24px 16px;}
  }
  .num-item:hover{background:#fff;}
  .num-index{
    font-size:26px;font-weight:800;line-height:1;color:var(--line);
    font-variant-numeric:tabular-nums;transition:color .2s ease-out;
  }
  @media (min-width:1024px){.num-index{font-size:46px;}}
  .num-item:hover .num-index{color:var(--brand);}
  .num-title{font-size:18px;font-weight:600;color:var(--ink);}
  .num-desc{font-size:14px;color:var(--muted);margin-top:4px;}
  .num-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px;}
  .num-side{display:none;}
  @media (min-width:1024px){.num-side{display:flex;align-items:center;gap:10px;}}

  /* ===== 横滑精选带 ===== */
  .strip{
    display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;
    padding:4px 4px 18px;scrollbar-width:none;-ms-overflow-style:none;
  }
  .strip::-webkit-scrollbar{display:none;}
  .strip-item{
    flex:0 0 auto;width:246px;scroll-snap-align:start;
    background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
    overflow:hidden;box-shadow:var(--shadow-sm);
    transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;
  }
  @media (min-width:1024px){.strip-item{width:288px;}}
  .strip-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:rgba(18,225,184,.5);}
  .strip-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--paper);}
  .strip-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease-out;}
  .strip-item:hover .strip-media img{transform:scale(1.04);}
  .strip-body{padding:14px 16px 16px;}
  .strip-title{font-size:15px;font-weight:600;color:var(--ink);line-height:1.5;}
  .strip-meta{font-size:12px;color:var(--muted);margin-top:6px;}

  /* ===== 上新行 ===== */
  .news-row{
    display:flex;flex-wrap:wrap;gap:8px 16px;align-items:center;
    padding:18px 16px;border-bottom:1px solid var(--line);
    transition:background-color .2s ease-out;
  }
  .news-row:hover{background:#fff;}
  .news-date{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;flex:0 0 auto;}
  .news-title{font-size:16px;font-weight:600;color:var(--ink);flex:1 1 260px;}
  .news-row:hover .news-title{color:var(--brand-deep);}
  .news-desc{flex:1 1 100%;font-size:14px;color:var(--muted);}

  /* ===== FAQ ===== */
  .faq-item{
    background:#fff;border:1px solid var(--line);border-radius:14px;
    margin-bottom:12px;overflow:hidden;transition:border-color .2s ease-out;
  }
  .faq-item.is-open{border-color:rgba(18,225,184,.55);}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    min-height:56px;padding:16px 20px;background:none;border:0;
    font-size:16px;font-weight:600;color:var(--ink);text-align:left;
  }
  .faq-icon{position:relative;width:16px;height:16px;flex:0 0 auto;}
  .faq-icon::before,.faq-icon::after{
    content:"";position:absolute;background:var(--ink-soft);
    transition:transform .24s ease-out,opacity .24s ease-out;
  }
  .faq-icon::before{left:0;top:7px;width:16px;height:1.5px;}
  .faq-icon::after{top:0;left:7px;width:1.5px;height:16px;}
  .faq-item.is-open .faq-icon::after{transform:scaleY(0);}
  .faq-item.is-open .faq-icon::before{background:var(--brand-deep);}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease-out;}
  .faq-a-inner{padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--ink-soft);}

  /* ===== CTA 横幅 ===== */
  .cta-band{
    position:relative;overflow:hidden;border-radius:var(--r-poster);
    background:var(--dark-bg);color:#F2F2F0;
    padding:40px 24px;
  }
  @media (min-width:1024px){.cta-band{padding:56px 48px;}}
  .cta-band::after{
    content:"";position:absolute;right:-80px;top:-120px;width:360px;height:360px;
    background:radial-gradient(closest-side,rgba(18,225,184,.22),rgba(18,225,184,0));
    pointer-events:none;
  }
  .cta-inner{position:relative;z-index:2;display:grid;gap:28px;}
  @media (min-width:1024px){
    .cta-inner{grid-template-columns:1.2fr .8fr;align-items:center;gap:48px;}
  }
  .cta-title{font-size:clamp(24px,3vw,34px);font-weight:800;line-height:1.25;color:#fff;letter-spacing:-.01em;}
  .cta-sub{margin-top:12px;font-size:15px;line-height:1.8;color:#9A9AA5;max-width:32em;}
  .form-row{display:flex;flex-direction:column;gap:12px;}
  @media (min-width:640px){.form-row{flex-direction:row;align-items:center;}}
  .input-field{
    width:100%;height:48px;padding:0 16px;border-radius:12px;
    background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.18);
    color:#F2F2F0;font-size:15px;
    transition:border-color .2s ease-out,box-shadow .2s ease-out;
  }
  .input-field::placeholder{color:#9A9AA5;}
  .input-field:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(18,225,184,.22);}
  .form-hint{font-size:12px;color:#9A9AA5;margin-top:10px;}

  /* ===== 页脚 ===== */
  .site-footer{background:var(--ink);color:#F2F2F0;padding:56px 0 26px;margin-top:8px;}
  .footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
  @media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
  @media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}}
  .site-footer .brand-text{color:#fff;}
  .footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:#9A9AA5;max-width:26em;}
  .footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px;}
  .footer-col li{margin-bottom:6px;}
  .footer-col a{font-size:14px;color:#9A9AA5;transition:color .2s ease-out;}
  .footer-col a:hover{color:var(--brand);}
  .footer-bottom{
    display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;
    margin-top:32px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);
    font-size:13px;color:#9A9AA5;
  }

  /* ===== 底部 Tab ===== */
  .tabbar{
    display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
    background:rgba(247,246,243,.96);border-top:1px solid var(--line);
    backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .tabbar-inner{display:flex;}
  .tabbar .tab{
    position:relative;flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;
    gap:3px;min-height:56px;padding:8px 2px 10px;font-size:11px;color:var(--muted);
    transition:color .2s ease-out;
  }
  .tabbar .tab svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
  .tabbar .tab.is-active{color:var(--brand-deep);}
  .tabbar .tab.is-active::before{
    content:"";position:absolute;top:0;width:20px;height:2px;border-radius:2px;background:var(--brand);
  }
  @media (max-width:767px){
    .tabbar{display:block;}
    .page-body{padding-bottom:96px;}
  }

  /* ===== 进入动效 ===== */
  .reveal{opacity:0;transform:translateY(12px);transition:opacity .42s cubic-bezier(.22,.61,.36,1),transform .42s cubic-bezier(.22,.61,.36,1);}
  .reveal.is-in{opacity:1;transform:translateY(0);}
  @media (prefers-reduced-motion:reduce){
    .reveal{opacity:1;transform:none;transition:none;}
    .card,.strip-item,.btn,.play-btn,.card-media img,.strip-media img{transition:none !important;}
  }