/* roulang page: index */
:root{
  --brand-ink:#0E1311;
  --ink-2:#3A423E;
  --ink-3:#7A8480;
  --line:#E6E9E4;
  --bg:#F6F7F4;
  --card:#FFFFFF;
  --neon:#C6F53A;
  --heat:#FF5A2B;
  --r-card:18px;
  --r-img:14px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(14,19,17,.06);
  --sh-2:0 12px 28px rgba(14,19,17,.12);
  --sh-3:0 20px 48px rgba(14,19,17,.18);
  --sp-4:4px; --sp-8:8px; --sp-12:12px; --sp-16:16px; --sp-24:24px; --sp-32:32px; --sp-48:48px; --sp-64:64px; --sp-96:96px;
  --container:1200px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand-ink);text-decoration:none;}
button,input{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--brand-ink);font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
body.nav-open{overflow:hidden;}
:focus-visible{outline:3px solid rgba(198,245,58,.9);outline-offset:2px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;cursor:pointer;border:1px solid transparent;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn--lg{height:52px;padding:0 30px;font-size:16px;}
.btn--primary{background:var(--brand-ink);color:#fff;}
.btn--primary:hover{background:var(--neon);color:var(--brand-ink);transform:scale(1.02);}
.btn--accent{background:var(--neon);color:var(--brand-ink);}
.btn--accent:hover{background:#b6e52c;transform:translateY(-2px);}
.btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.btn--ghost:hover{background:#fff;color:var(--brand-ink);border-color:#fff;}
.btn--outline{background:transparent;color:var(--brand-ink);border-color:var(--line);}
.btn--outline:hover{border-color:var(--brand-ink);}
.btn--block{width:100%;}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.nav{display:flex;align-items:center;gap:var(--sp-24);height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand__mark{
  width:32px;height:32px;border-radius:9px;background:var(--neon);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.brand__mark svg{width:18px;height:18px;display:block;}
.brand__text{
  font-size:15px;font-weight:700;color:var(--brand-ink);white-space:nowrap;letter-spacing:-.01em;
}
.nav__list{display:flex;align-items:center;gap:var(--sp-4);margin-left:var(--sp-16);}
.nav__link{
  position:relative;display:inline-block;padding:20px 14px;font-size:15px;font-weight:600;color:var(--ink-2);
  transition:color .2s ease;
}
.nav__link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:12px;height:2px;background:var(--neon);
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav__link:hover{color:var(--brand-ink);}
.nav__link:hover::after,.nav__link.is-active::after{transform:scaleX(1);}
.nav__link.is-active{color:var(--brand-ink);}
.nav__right{display:flex;align-items:center;gap:var(--sp-12);margin-left:auto;}
.search{
  display:flex;align-items:center;gap:8px;height:40px;width:200px;padding:0 16px;
  background:#F1F3EF;border:1px solid transparent;border-radius:var(--r-pill);
  transition:background-color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.search:focus-within{background:#fff;border-color:var(--neon);box-shadow:0 0 0 3px rgba(198,245,58,.3);}
.search svg{width:16px;height:16px;flex-shrink:0;stroke:var(--ink-3);}
.search input{flex:1;min-width:0;border:0;background:transparent;font-size:14px;outline:none;}
.search input::placeholder{color:var(--ink-3);}
.nav__burger{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;
  align-items:center;justify-content:center;cursor:pointer;
}
.nav__burger span{display:block;width:18px;height:2px;background:var(--brand-ink);position:relative;}
.nav__burger span::before,
.nav__burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand-ink);}
.nav__burger span::before{top:-6px;}
.nav__burger span::after{top:6px;}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0;background:#fff;z-index:200;
  transform:translateX(100%);transition:transform .28s ease;
  display:flex;flex-direction:column;padding:0 20px 32px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer__top{display:flex;align-items:center;justify-content:space-between;height:56px;border-bottom:1px solid var(--line);}
.drawer__close{width:36px;height:36px;border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer;font-size:16px;color:var(--brand-ink);}
.drawer__nav{display:flex;flex-direction:column;margin-top:var(--sp-8);}
.drawer__nav a{
  display:flex;align-items:center;height:56px;font-size:16px;font-weight:600;color:var(--brand-ink);
  border-bottom:1px solid var(--line);
}
.drawer__nav a.is-active{color:var(--brand-ink);}
.drawer__nav a.is-active::before{content:"";width:4px;height:18px;background:var(--neon);border-radius:2px;margin-right:10px;}
.drawer__foot{margin-top:var(--sp-24);display:flex;flex-direction:column;gap:var(--sp-12);}

/* ---------- Hero ---------- */
.hero{
  position:relative;background:var(--brand-ink);color:#fff;overflow:hidden;
}
.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:56px 56px;opacity:.7;pointer-events:none;
}
.hero__bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.22;
}
.hero__inner{
  position:relative;display:grid;grid-template-columns:minmax(0,6fr) minmax(0,4fr);
  gap:var(--sp-48);align-items:center;padding-top:var(--sp-64);padding-bottom:var(--sp-64);
}
.hero__tag{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;margin-bottom:var(--sp-16);
  background:var(--neon);color:var(--brand-ink);border-radius:6px;font-size:13px;font-weight:700;
  clip-path:polygon(8px 0,100% 0,calc(100% - 8px) 100%,0 100%);
}
.hero h1{
  color:#fff;font-size:clamp(28px,5vw,52px);font-weight:800;line-height:1.15;letter-spacing:-.02em;
}
.hero__sub{
  margin-top:var(--sp-16);font-size:17px;line-height:1.7;color:rgba(255,255,255,.78);max-width:520px;
}
.hero__actions{display:flex;gap:var(--sp-12);margin-top:var(--sp-32);flex-wrap:wrap;}
.hero__stats{
  display:grid;grid-template-columns:repeat(4,1fr);margin-top:var(--sp-48);
  border-top:1px solid rgba(255,255,255,.16);padding-top:var(--sp-24);
}
.hero__stat{padding-right:var(--sp-16);border-right:1px solid rgba(255,255,255,.16);}
.hero__stat:last-child{border-right:0;}
.hero__stat b{display:block;font-size:26px;font-weight:700;color:#fff;line-height:1.2;}
.hero__stat span{display:block;margin-top:4px;font-size:13px;color:rgba(255,255,255,.6);}

.hero__card{
  position:relative;width:100%;max-width:360px;margin-left:auto;
  aspect-ratio:9/16;border-radius:var(--r-card);overflow:hidden;background:#1B211E;
  box-shadow:var(--sh-3);
}
.hero__card img{width:100%;height:100%;object-fit:cover;}
.hero__card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,19,17,.05) 40%,rgba(14,19,17,.85) 100%);
}
.hero__card-tag{
  position:absolute;top:16px;left:0;z-index:2;height:28px;padding:0 14px 0 16px;
  display:flex;align-items:center;background:var(--heat);color:#fff;font-size:12px;font-weight:700;
  clip-path:polygon(0 0,100% 0,calc(100% - 10px) 100%,0 100%);
}
.play{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);z-index:2;
  width:64px;height:64px;border-radius:50%;background:rgba(198,245,58,.95);
  display:flex;align-items:center;justify-content:center;
  animation:breathe 1.2s ease-in-out infinite;
}
.play svg{width:20px;height:20px;margin-left:3px;fill:var(--brand-ink);}
@keyframes breathe{0%,100%{transform:translate(-50%,-50%) scale(1);}50%{transform:translate(-50%,-50%) scale(1.08);}}
.hero__card-foot{
  position:absolute;left:16px;right:16px;bottom:16px;z-index:2;
  display:flex;align-items:flex-end;justify-content:space-between;gap:12px;
}
.hero__card-foot p{font-size:13px;color:rgba(255,255,255,.9);line-height:1.5;}
.duration{
  display:inline-flex;align-items:center;height:22px;padding:0 8px;border-radius:6px;
  background:rgba(14,19,17,.6);color:#fff;font-size:12px;font-weight:600;flex-shrink:0;
}

/* ---------- 板块通用 ---------- */
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section--dark{background:var(--brand-ink);color:#fff;}
.section--white{background:#fff;}
.section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:var(--sp-24);margin-bottom:var(--sp-32);}
.section__head h2{font-size:clamp(22px,3.2vw,32px);font-weight:700;line-height:1.25;}
.section__head h2::before{
  content:"";display:inline-block;width:4px;height:20px;background:var(--neon);border-radius:2px;
  margin-right:12px;vertical-align:-2px;
}
.section__head p{margin-top:8px;font-size:15px;color:var(--ink-3);}
.more-link{
  font-size:14px;font-weight:700;color:var(--brand-ink);white-space:nowrap;
  border-bottom:2px solid transparent;transition:border-color .2s ease;
}
.more-link:hover{border-color:var(--neon);}
.section--dark .more-link{color:#fff;}
.section--dark .section__head p{color:rgba(255,255,255,.6);}

/* ---------- 横滑片段 ---------- */
.rail-wrap{position:relative;}
.rail{
  display:flex;gap:var(--sp-16);overflow-x:auto;scroll-snap-type:x mandatory;
  padding-bottom:var(--sp-4);scrollbar-width:none;
}
.rail::-webkit-scrollbar{display:none;}
.rail > *{scroll-snap-align:start;flex:0 0 auto;}
.clip-card{
  width:220px;border-radius:var(--r-card);overflow:hidden;background:#1B211E;
  position:relative;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease;
}
.clip-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.clip-card__media{position:relative;aspect-ratio:9/16;}
.clip-card__media img{width:100%;height:100%;object-fit:cover;}
.clip-card__media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,19,17,0) 45%,rgba(14,19,17,.88) 100%);
}
.clip-card__time{
  position:absolute;top:10px;right:10px;z-index:2;height:22px;padding:0 8px;border-radius:6px;
  background:rgba(14,19,17,.6);color:#fff;font-size:12px;font-weight:600;
  display:inline-flex;align-items:center;
}
.clip-card__body{position:absolute;left:12px;right:12px;bottom:12px;z-index:2;}
.clip-card__body h3{
  color:#fff;font-size:15px;font-weight:600;line-height:1.4;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.clip-card__meta{
  display:flex;gap:12px;margin-top:8px;font-size:12px;color:rgba(255,255,255,.72);
}
.rail-nav{display:flex;gap:8px;}
.rail-nav button{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:#fff;
  cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--brand-ink);
  transition:border-color .2s ease,background-color .2s ease;
}
.rail-nav button:hover{border-color:var(--brand-ink);background:#fff;}
.rail-nav button:disabled{opacity:.35;cursor:not-allowed;}

/* ---------- 种草清单 ---------- */
.pick-layout{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:var(--sp-32);align-items:start;}
.pick-list{display:flex;flex-direction:column;gap:var(--sp-16);}
.pick-item{
  display:flex;align-items:center;gap:var(--sp-24);background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:var(--sp-24);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.pick-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D8DDD5;}
.pick-item__idx{
  font-size:32px;font-weight:800;color:transparent;-webkit-text-stroke:1.4px var(--brand-ink);
  line-height:1;flex:0 0 56px;font-variant-numeric:tabular-nums;
}
.pick-item__txt{flex:1;min-width:0;}
.pick-item__txt h3{font-size:18px;font-weight:600;line-height:1.4;}
.pick-item__txt p{margin-top:6px;font-size:13px;color:var(--ink-3);}
.pick-item__thumb{width:88px;height:88px;border-radius:12px;overflow:hidden;flex-shrink:0;background:#EDF0EA;}
.pick-item__thumb img{width:100%;height:100%;object-fit:cover;}
.pick-side{
  position:sticky;top:88px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
}
.pick-side__media{aspect-ratio:3/4;background:#EDF0EA;}
.pick-side__media img{width:100%;height:100%;object-fit:cover;}
.pick-side__body{padding:var(--sp-24);}
.pick-side__body h3{font-size:18px;font-weight:600;}
.pick-side__body p{margin-top:8px;font-size:14px;color:var(--ink-3);line-height:1.7;}
.pick-side__body .btn{margin-top:var(--sp-16);}

/* ---------- 资讯列表 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--sp-24);}
.news-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,opacity .12s ease;
  display:flex;flex-direction:column;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D8DDD5;}
.news-card.is-in{animation:fadeIn .12s ease both;}
@keyframes fadeIn{from{opacity:.2;}to{opacity:1;}}
.news-card__link{display:block;height:100%;color:inherit;}
.news-card__media{position:relative;background:#EDF0EA;overflow:hidden;}
.news-card__media img{width:100%;height:100%;object-fit:cover;}
.news-card--lead{grid-column:1/-1;}
.news-card--lead .news-card__media{aspect-ratio:16/9;}
.news-card:not(.news-card--lead) .news-card__media{aspect-ratio:16/9;}
.badge-cat{
  position:absolute;top:12px;left:12px;z-index:2;height:26px;padding:0 12px;border-radius:6px;
  background:rgba(198,245,58,.92);color:var(--brand-ink);font-size:12px;font-weight:700;
  display:inline-flex;align-items:center;
}
.news-card__body{padding:var(--sp-24);display:flex;flex-direction:column;gap:12px;flex:1;}
.news-card__body h3{
  font-size:18px;font-weight:600;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card--lead .news-card__body h3{font-size:clamp(20px,2.4vw,26px);-webkit-line-clamp:2;}
.news-card__excerpt{
  font-size:14px;color:var(--ink-3);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card--lead .news-card__excerpt{-webkit-line-clamp:3;}
.news-card__foot{
  display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
  font-size:13px;color:var(--ink-3);
}
.news-card__foot .dot{width:4px;height:4px;border-radius:50%;background:var(--line);}
.empty-state{
  grid-column:1/-1;min-height:260px;border:1px dashed #CFD6CC;border-radius:var(--r-card);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  color:var(--ink-3);font-size:14px;background:rgba(255,255,255,.6);
}
.empty-state svg{width:36px;height:36px;stroke:var(--ink-3);}
.skeleton{background:linear-gradient(90deg,#EEF1EC 25%,#F7F8F5 37%,#EEF1EC 63%);background-size:400% 100%;animation:shimmer 1.4s ease infinite;}
@keyframes shimmer{0%{background-position:100% 0;}100%{background-position:0 0;}}

/* ---------- 口碑 ---------- */
.review-card{
  width:320px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:var(--sp-24);display:flex;flex-direction:column;gap:12px;transition:transform .2s ease,box-shadow .2s ease;
}
.review-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.review-card__top{display:flex;align-items:center;gap:12px;}
.avatar{
  width:40px;height:40px;border-radius:50%;flex-shrink:0;
  background:var(--brand-ink);color:var(--neon);display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;
}
.review-card__top b{display:block;font-size:15px;color:var(--brand-ink);}
.stars{display:flex;gap:2px;margin-top:2px;}
.stars svg{width:13px;height:13px;}
.stars .on{fill:var(--neon);}
.stars .off{fill:#DDE2D8;}
.review-card p{
  font-size:14px;color:var(--ink-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.review-card__foot{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--ink-3);}
.chip{
  display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:var(--r-pill);
  background:#F1F3EF;color:var(--ink-3);font-size:12px;
}

/* ---------- CTA 带 ---------- */
.cta-band{background:var(--brand-ink);color:#fff;position:relative;overflow:hidden;}
.cta-band::before{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(198,245,58,.22),transparent 65%);
}
.cta-band__inner{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:var(--sp-48);
  padding:64px 0;
}
.cta-band h2{color:#fff;font-size:clamp(22px,3vw,30px);}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.7);max-width:520px;}
.cta-band__steps{display:flex;gap:10px;margin-top:var(--sp-24);flex-wrap:wrap;}
.step-tag{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 16px;background:rgba(255,255,255,.08);
  border-radius:6px;font-size:13px;color:#fff;
  clip-path:polygon(8px 0,100% 0,calc(100% - 8px) 100%,0 100%);
}
.step-tag b{color:var(--neon);}
.cta-band__action{flex-shrink:0;}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;margin:0 auto;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-item__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;
  padding:24px;background:transparent;border:0;cursor:pointer;font-size:16px;font-weight:600;color:var(--brand-ink);
  position:relative;transition:background-color .2s ease;
}
.faq-item__q:hover{background:#FAFBF8;}
.faq-item__q::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:4px;background:var(--neon);
  border-radius:0 2px 2px 0;transform:scaleY(0);transition:transform .22s ease;
}
.faq-item.is-open .faq-item__q::before{transform:scaleY(1);}
.faq-item__icon{
  width:22px;height:22px;flex-shrink:0;position:relative;transition:transform .25s ease;
}
.faq-item__icon::before,
.faq-item__icon::after{
  content:"";position:absolute;background:var(--brand-ink);border-radius:2px;
}
.faq-item__icon::before{left:0;top:10px;width:22px;height:2px;}
.faq-item__icon::after{left:10px;top:0;width:2px;height:22px;}
.faq-item.is-open .faq-item__icon{transform:rotate(45deg);}
.faq-item__a{
  max-height:0;overflow:hidden;transition:max-height .3s ease;
}
.faq-item__a p{padding:0 24px 24px 24px;font-size:15px;line-height:1.7;color:var(--ink-2);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-ink);color:#fff;border-top:2px solid var(--neon);}
.footer__grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:var(--sp-48);
  padding:64px 0 48px;
}
.footer__brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer__brand .brand__text{color:#fff;}
.footer p,.footer a,.footer li{font-size:14px;color:rgba(255,255,255,.62);}
.footer__desc{line-height:1.8;max-width:300px;}
.footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;}
.footer__links{display:flex;flex-direction:column;gap:12px;}
.footer a{transition:color .2s ease;}
.footer a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer__bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:24px 0 40px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer__bottom p{font-size:13px;color:rgba(255,255,255,.5);}
.footer__note{margin-top:12px;font-size:13px;color:rgba(255,255,255,.45);line-height:1.7;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .section{padding:64px 0;}
  .hero__inner{grid-template-columns:1fr;gap:var(--sp-32);padding-top:var(--sp-48);padding-bottom:var(--sp-48);}
  .hero__card{max-width:300px;margin:0 auto;}
  .pick-layout{grid-template-columns:1fr;}
  .pick-side{position:static;}
  .footer__grid{grid-template-columns:1fr 1fr;gap:var(--sp-32);}
  .nav__list{display:none;}
  .search{width:160px;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .section{padding:48px 0;}
  .nav{height:56px;}
  .search{display:none;}
  .nav__burger{display:flex;}
  .nav__right{gap:8px;}
  .hero__card{max-width:100%;aspect-ratio:4/5;order:-1;margin-bottom:var(--sp-24);}
  .hero__actions .btn{width:100%;}
  .hero__stats{grid-template-columns:repeat(2,1fr);gap:var(--sp-16);border-top:1px solid rgba(255,255,255,.16);}
  .hero__stat{border-right:0;padding-right:0;}
  .clip-card{width:76vw;}
  .news-grid{grid-template-columns:1fr;}
  .news-card--lead{grid-column:auto;}
  .pick-item{align-items:flex-start;flex-wrap:wrap;gap:var(--sp-16);padding:20px;}
  .pick-item__idx{flex:0 0 44px;font-size:26px;}
  .pick-item__thumb{width:100%;height:150px;border-radius:12px;order:3;}
  .cta-band__inner{flex-direction:column;align-items:flex-start;padding:48px 0;}
  .cta-band__action{width:100%;}
  .cta-band__action .btn{width:100%;}
  .faq-item__q{padding:20px;font-size:15px;}
  .faq-item__a p{padding:0 20px 20px 20px;}
  .footer__grid{grid-template-columns:1fr;padding:48px 0 32px;}
  .footer__bottom{flex-direction:column;align-items:flex-start;}
  .rail-nav{display:none;}
}
@media (max-width:480px){
  body{font-size:15px;}
  .brand__text{font-size:13px;}
  .hero__stat b{font-size:22px;}
  .section__head{flex-direction:column;align-items:flex-start;gap:12px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
}

/* roulang page: category1 */
:root{
  --brand-ink:#0E1311;
  --ink-2:#3A423E;
  --ink-3:#7A8480;
  --line:#E6E9E4;
  --bg:#F6F7F4;
  --card:#FFFFFF;
  --neon:#C6F53A;
  --heat:#FF5A2B;
  --field:#EFF1EC;
  --danger:#E5484D;
  --success:#17A673;
  --on-dark:#FFFFFF;
  --on-dark-2:rgba(255,255,255,.68);
  --on-dark-3:rgba(255,255,255,.42);
  --grid-line:rgba(255,255,255,.06);

  --r-card:18px;
  --r-img:14px;
  --r-sm:10px;
  --r-pill:999px;

  --shadow-1:0 2px 8px rgba(14,19,17,.06);
  --shadow-2:0 12px 28px rgba(14,19,17,.12);
  --shadow-3:0 20px 48px rgba(14,19,17,.18);

  --s1:4px; --s2:8px; --s3:12px; --s4:16px; --s5:24px;
  --s6:32px; --s7:48px; --s8:64px; --s9:96px;

  --container:1200px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter","DIN Alternate",system-ui,-apple-system,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-ink);text-decoration:none;transition:color .2s ease,background-color .2s ease,opacity .2s ease}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--brand-ink);line-height:1.25}
p{margin:0}
svg{display:block}
:focus-visible{outline:3px solid rgba(198,245,58,.5);outline-offset:2px;border-radius:6px}

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

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border:none;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;letter-spacing:.02em;cursor:pointer;
  white-space:nowrap;transition:transform .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.btn--lg{height:52px;padding:0 30px;font-size:16px}
.btn--sm{height:38px;padding:0 18px;font-size:14px}
.btn--primary{background:var(--brand-ink);color:#fff}
.btn--primary:hover{background:var(--neon);color:var(--brand-ink);transform:scale(1.02)}
.btn--accent{background:var(--neon);color:var(--brand-ink)}
.btn--accent:hover{background:#B7E52C;transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn--ghost{background:transparent;color:var(--brand-ink);border:1px solid var(--line)}
.btn--ghost:hover{border-color:var(--brand-ink);transform:translateY(-2px)}
.btn--ghost-light{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.42)}
.btn--ghost-light:hover{background:#fff;color:var(--brand-ink);border-color:#fff}
.btn--block{width:100%}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:6px;font-size:13px;font-weight:700;line-height:1.6;
}
.badge--neon{background:rgba(198,245,58,.28);color:var(--brand-ink)}
.badge--heat{background:var(--heat);color:#fff;clip-path:polygon(8px 0,100% 0,calc(100% - 8px) 100%,0 100%);padding:4px 14px}
.badge--dark{background:rgba(0,0,0,.6);color:#fff}
.badge--line{border:1px solid var(--line);color:var(--ink-2);background:var(--card)}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:100;
  background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(14,19,17,.08)}
.nav{display:flex;align-items:center;gap:var(--s5);height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand__mark{
  width:32px;height:32px;border-radius:10px;background:var(--neon);
  display:flex;align-items:center;justify-content:center;flex:0 0 32px;
}
.brand__mark svg{width:18px;height:18px}
.brand__text{
  font-size:15px;font-weight:700;color:var(--brand-ink);
  white-space:nowrap;letter-spacing:.01em;
}
.nav__list{display:flex;align-items:center;gap:2px;margin-left:var(--s2);flex:1 1 auto}
.nav__link{
  position:relative;display:block;padding:8px 14px;border-radius:8px;
  font-size:15px;color:var(--ink-2);font-weight:500;
}
.nav__link:hover{color:var(--brand-ink);background:#F3F5F0}
.nav__link.is-active{color:var(--brand-ink);font-weight:700}
.nav__link.is-active::after{
  content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);
  width:20px;height:2px;background:var(--neon);border-radius:2px;
}
.nav__right{display:flex;align-items:center;gap:var(--s3);flex:0 0 auto}
.search{
  display:flex;align-items:center;gap:8px;width:200px;height:40px;padding:0 14px;
  background:var(--field);border:1px solid transparent;border-radius:var(--r-pill);
  transition:background-color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.search svg{width:16px;height:16px;stroke:var(--ink-3);fill:none;flex:0 0 16px}
.search input{
  width:100%;border:none;background:transparent;outline:none;
  font-size:14px;color:var(--brand-ink);
}
.search input::placeholder{color:var(--ink-3)}
.search:focus-within{background:#fff;border-color:var(--neon);box-shadow:0 0 0 3px rgba(198,245,58,.3)}
.nav__burger{
  display:none;width:40px;height:40px;border:1px solid var(--line);background:#fff;
  border-radius:10px;cursor:pointer;position:relative;
}
.nav__burger span,
.nav__burger span::before,
.nav__burger span::after{
  position:absolute;left:50%;transform:translateX(-50%);
  width:18px;height:2px;background:var(--brand-ink);border-radius:2px;content:"";
}
.nav__burger span{top:19px}
.nav__burger span::before{top:-6px}
.nav__burger span::after{top:6px}

/* 移动端抽屉 */
.drawer{
  position:fixed;inset:0;z-index:200;background:#fff;
  transform:translateY(-100%);opacity:0;visibility:hidden;
  transition:transform .28s ease,opacity .28s ease,visibility .28s;
  display:flex;flex-direction:column;overflow-y:auto;
}
.drawer.is-open{transform:translateY(0);opacity:1;visibility:visible}
.drawer__head{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;border-bottom:1px solid var(--line)}
.drawer__close{width:40px;height:40px;border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer;font-size:20px;line-height:1;color:var(--brand-ink)}
.drawer__body{padding:8px 20px 24px}
.drawer__nav a{
  display:block;padding:0 4px;line-height:56px;font-size:16px;font-weight:600;
  color:var(--brand-ink);border-bottom:1px solid var(--line);
}
.drawer__nav a.is-active{color:var(--brand-ink)}
.drawer__nav a.is-active::before{content:"";display:inline-block;width:6px;height:6px;background:var(--neon);border-radius:2px;margin-right:10px;vertical-align:middle}
.drawer__search{margin:20px 0}
.drawer__foot{padding:4px 0 32px}
body.is-locked{overflow:hidden}

/* ============ 首屏 ============ */
.page-hero{
  position:relative;background-color:var(--brand-ink);
  background-image:linear-gradient(115deg,rgba(14,19,17,.94) 0%,rgba(14,19,17,.78) 48%,rgba(14,19,17,.62) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  color:#fff;padding:var(--s9) 0;
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(var(--grid-line) 1px,transparent 1px),linear-gradient(90deg,var(--grid-line) 1px,transparent 1px);
  background-size:64px 64px;
}
.page-hero .container{position:relative;z-index:1;max-width:960px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--brand-ink);
  background:var(--neon);padding:5px 14px;border-radius:6px;margin-bottom:var(--s5);
}
.page-hero h1{
  color:#fff;font-size:clamp(28px,5vw,52px);font-weight:800;line-height:1.15;
  max-width:18em;
}
.page-hero__sub{
  margin-top:var(--s4);font-size:clamp(15px,1.6vw,18px);color:var(--on-dark-2);max-width:36em;
}
.crumbs{display:flex;align-items:center;gap:8px;margin-top:var(--s4);font-size:13px;color:var(--on-dark-3)}
.crumbs a{color:var(--on-dark-2)}
.crumbs a:hover{color:var(--neon)}
.page-hero__actions{display:flex;flex-wrap:wrap;gap:var(--s3);margin-top:var(--s6)}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:var(--s5);
  margin-top:var(--s8);padding-top:var(--s6);border-top:1px solid rgba(255,255,255,.14);
}
.hero-stats li{position:relative;padding-left:var(--s5)}
.hero-stats li::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:1px;background:rgba(255,255,255,.18)}
.hero-stats li:first-child{padding-left:0}
.hero-stats li:first-child::before{display:none}
.hero-stats b{
  display:block;font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:26px;font-weight:800;color:var(--neon);line-height:1.2;
}
.hero-stats span{font-size:13px;color:var(--on-dark-2)}

/* ============ 区块通用 ============ */
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section--alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section--dark{
  background:var(--brand-ink);color:#fff;position:relative;overflow:hidden;
}
.section--dark::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(var(--grid-line) 1px,transparent 1px),linear-gradient(90deg,var(--grid-line) 1px,transparent 1px);
  background-size:64px 64px;
}
.section--dark > .container{position:relative;z-index:1}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:var(--s5);margin-bottom:var(--s6)}
.section-head h2{font-size:clamp(22px,3.2vw,32px);font-weight:700}
.section-head p{margin-top:var(--s2);font-size:15px;color:var(--ink-3);max-width:52em}
.section--dark .section-head h2{color:#fff}
.section--dark .section-head p{color:var(--on-dark-2)}
.text-link{
  position:relative;display:inline-block;font-size:14px;font-weight:700;color:var(--brand-ink);
  padding-bottom:2px;
}
.text-link::after{
  content:"";position:absolute;left:0;bottom:0;width:100%;height:2px;background:var(--neon);
  transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.text-link:hover::after{transform:scaleX(1)}
.section--dark .text-link{color:var(--neon)}

/* ============ 注册落地布局 ============ */
.entry-layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:var(--s7);align-items:start}
.anchor-nav{position:sticky;top:96px}
.anchor-nav__title{
  font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--ink-3);
  text-transform:uppercase;margin-bottom:var(--s4);
}
.anchor-nav__list{position:relative;padding-left:var(--s4)}
.anchor-nav__list::before{content:"";position:absolute;left:0;top:4px;bottom:4px;width:1px;background:var(--line)}
.anchor-nav__link{
  position:relative;display:block;padding:9px 0;font-size:14px;color:var(--ink-3);
}
.anchor-nav__link:hover{color:var(--brand-ink)}
.anchor-nav__link.is-active{color:var(--brand-ink);font-weight:700}
.anchor-nav__link.is-active::before{
  content:"";position:absolute;left:calc(-1 * var(--s4));top:12px;bottom:12px;
  width:3px;border-radius:2px;background:var(--neon);
}
.anchor-note{
  margin-top:var(--s5);padding:var(--s4);border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--card);font-size:13px;color:var(--ink-3);line-height:1.7;
}

/* ============ 步骤卡 ============ */
.steps{position:relative;display:grid;gap:var(--s5)}
.steps::before{
  content:"";position:absolute;left:60px;top:40px;bottom:40px;
  border-left:2px dashed rgba(14,19,17,.14);
}
.step-card{
  position:relative;z-index:1;display:grid;grid-template-columns:72px minmax(0,1fr) 220px;
  gap:var(--s5);align-items:center;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:var(--s5);box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D8DED2}
.step-card__num{
  font-family:var(--font-num);font-size:40px;font-weight:800;line-height:1;
  text-align:center;color:transparent;-webkit-text-stroke:2px var(--neon);
}
.step-card__body h3{font-size:19px;font-weight:600;margin-bottom:var(--s2)}
.step-card__body p{font-size:15px;color:var(--ink-2)}
.step-card__meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:var(--s3)}

.media{
  position:relative;overflow:hidden;border-radius:var(--r-img);
  background:linear-gradient(135deg,#E9EDE4 0%,#D6DCCF 100%);
}
.media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.media img.is-broken{opacity:0}
.media--4x3{aspect-ratio:4/3}
.media--16x9{aspect-ratio:16/9}
.media--1x1{aspect-ratio:1/1}
.step-card:hover .media img{transform:scale(1.04)}

/* ============ 资料清单 ============ */
.material-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--s5)}
.material-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease;
}
.material-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.material-card__body{padding:var(--s5);display:flex;flex-direction:column;gap:var(--s2);flex:1}
.material-card h3{font-size:17px;font-weight:600}
.material-card p{font-size:14px;color:var(--ink-3)}
.material-card .tag{margin-top:auto;padding-top:var(--s3)}
.tag{
  display:inline-flex;align-self:flex-start;font-size:12px;font-weight:700;color:var(--brand-ink);
  background:rgba(198,245,58,.3);padding:3px 10px;border-radius:6px;
}

/* ============ 对照卡 ============ */
.compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--s5)}
.compare-col{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:var(--s6);box-shadow:var(--shadow-1);
}
.compare-col--hl{border-color:var(--neon);box-shadow:0 12px 28px rgba(198,245,58,.22)}
.compare-col h3{font-size:19px;font-weight:700;display:flex;align-items:center;gap:10px}
.compare-col__lead{margin-top:var(--s3);font-size:14px;color:var(--ink-3)}
.compare-list{margin-top:var(--s5);display:grid;gap:var(--s3)}
.compare-list li{
  display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-2);
  padding-bottom:var(--s3);border-bottom:1px solid var(--line);
}
.compare-list li:last-child{border-bottom:none;padding-bottom:0}
.dot{
  flex:0 0 16px;width:16px;height:16px;border-radius:5px;background:var(--neon);
  margin-top:5px;display:inline-flex;align-items:center;justify-content:center;
}
.dot::after{content:"";width:6px;height:6px;border-radius:2px;background:var(--brand-ink)}

/* ============ 提示条 ============ */
.notice{
  display:flex;gap:var(--s4);align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-left:3px solid var(--neon);
  border-radius:var(--r-sm);padding:var(--s5);
}
.notice b{display:block;color:var(--brand-ink);font-size:15px;margin-bottom:4px}
.notice p{font-size:14px;color:var(--ink-3)}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:var(--s3)}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;position:relative;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:4px;background:var(--neon);
  opacity:0;transition:opacity .2s ease;border-radius:0 2px 2px 0;
}
.faq-item[open]::before{opacity:1}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 56px 20px var(--s5);
  font-size:16px;font-weight:600;color:var(--brand-ink);position:relative;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{
  position:absolute;right:20px;top:50%;transform:translateY(-50%);
  width:26px;height:26px;border-radius:8px;background:var(--field);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;color:var(--brand-ink);
  transition:transform .25s ease,background-color .25s ease;
}
.faq-item[open] .faq-icon{transform:translateY(-50%) rotate(45deg);background:var(--neon)}
.faq-item__body{padding:0 var(--s5) 22px;font-size:15px;color:var(--ink-2);line-height:1.75}
.faq-item + .faq-item{margin-top:0}

/* ============ CTA 带 ============ */
.cta-band{
  background:var(--brand-ink);color:#fff;border-radius:var(--r-card);
  padding:var(--s8);display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);
  gap:var(--s7);align-items:center;position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(var(--grid-line) 1px,transparent 1px),linear-gradient(90deg,var(--grid-line) 1px,transparent 1px);
  background-size:56px 56px;
}
.cta-band > *{position:relative;z-index:1}
.cta-band h2{color:#fff;font-size:clamp(22px,3vw,30px)}
.cta-band p{margin-top:var(--s3);color:var(--on-dark-2);font-size:15px;max-width:34em}
.cta-band__right{display:flex;flex-direction:column;gap:var(--s5);align-items:flex-start}
.cta-steps{display:flex;flex-wrap:wrap;gap:var(--s3)}
.cta-chip{
  font-size:13px;font-weight:700;color:var(--brand-ink);background:var(--neon);
  padding:5px 16px;clip-path:polygon(8px 0,100% 0,calc(100% - 8px) 100%,0 100%);
}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-ink);color:var(--on-dark-2);border-top:2px solid var(--neon);margin-top:var(--s9)}
.footer{padding:var(--s8) 0 var(--s5)}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:var(--s7)}
.footer__brand{display:flex;align-items:center;gap:10px;margin-bottom:var(--s4)}
.footer__brand .brand__text{color:#fff}
.footer__desc{font-size:14px;line-height:1.8;color:var(--on-dark-2);max-width:30em}
.site-footer h4{color:#fff;font-size:14px;font-weight:700;margin-bottom:var(--s4);letter-spacing:.02em}
.footer__links{display:grid;gap:10px}
.footer__links a,.footer__links span{font-size:14px;color:var(--on-dark-2)}
.footer__links a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.footer__bottom{
  display:flex;flex-wrap:wrap;gap:var(--s3);justify-content:space-between;
  margin-top:var(--s7);padding-top:var(--s5);border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:var(--on-dark-3);
}
.footer__note{margin-top:var(--s3);font-size:13px;color:var(--on-dark-3)}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .nav__list{margin-left:0}
  .search{width:170px}
}
@media (max-width:1024px){
  .nav__list{display:none}
  .nav__burger{display:block}
  .section{padding:64px 0}
  .page-hero{padding:64px 0}
  .entry-layout{grid-template-columns:1fr;gap:var(--s5)}
  .anchor-nav{position:static}
  .anchor-nav__title{display:none}
  .anchor-nav__list{
    display:flex;gap:var(--s2);padding-left:0;overflow-x:auto;
    scrollbar-width:none;-ms-overflow-style:none;padding-bottom:4px;
  }
  .anchor-nav__list::-webkit-scrollbar{display:none}
  .anchor-nav__list::before{display:none}
  .anchor-nav__link{
    flex:0 0 auto;padding:8px 16px;border:1px solid var(--line);border-radius:var(--r-pill);
    background:#fff;font-size:13px;
  }
  .anchor-nav__link.is-active{border-color:var(--brand-ink);background:var(--brand-ink);color:#fff}
  .anchor-nav__link.is-active::before{display:none}
  .anchor-note{display:none}
  .step-card{grid-template-columns:60px minmax(0,1fr);}
  .step-card .media{grid-column:1 / -1}
  .steps::before{left:48px}
  .material-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band{grid-template-columns:1fr;padding:var(--s7)}
  .footer__grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--s6)}
}
@media (max-width:768px){
  .search{display:none}
  .nav{gap:var(--s4)}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--s5)}
  .hero-stats li:nth-child(3){padding-left:0}
  .hero-stats li:nth-child(3)::before{display:none}
  .compare{grid-template-columns:1fr}
  .section-head{flex-direction:column;align-items:flex-start;gap:var(--s3)}
}
@media (max-width:520px){
  .container{padding:0 20px}
  .section{padding:48px 0}
  .page-hero{padding:48px 0}
  .page-hero__actions .btn{width:100%}
  .material-grid{grid-template-columns:1fr}
  .step-card{grid-template-columns:1fr;padding:var(--s5) var(--s5) var(--s6);gap:var(--s4)}
  .step-card__num{text-align:left;-webkit-text-stroke-width:2px}
  .steps::before{display:none}
  .cta-band{padding:var(--s6) var(--s5)}
  .footer__grid{grid-template-columns:1fr;gap:var(--s6)}
  .footer__bottom{flex-direction:column}
  .faq-item summary{padding:18px 52px 18px 20px;font-size:15px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --brand-ink:#0E1311;
  --ink-2:#3A423E;
  --ink-3:#7A8480;
  --line:#E6E9E4;
  --line-soft:#F0F2ED;
  --bg:#F6F7F4;
  --card:#FFFFFF;
  --neon:#C6F53A;
  --neon-deep:#B4E52A;
  --heat:#FF5A2B;
  --danger:#E5484D;
  --ok:#17A673;
  --r-card:18px;
  --r-img:14px;
  --r-sm:10px;
  --shadow-1:0 2px 8px rgba(14,19,17,.06);
  --shadow-2:0 12px 28px rgba(14,19,17,.12);
  --shadow-3:0 20px 48px rgba(14,19,17,.18);
  --sp-1:4px;
  --sp-2:8px;
  --sp-3:12px;
  --sp-4:16px;
  --sp-5:24px;
  --sp-6:32px;
  --sp-7:48px;
  --sp-8:64px;
  --sp-9:88px;
  --font-cn:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter",DIN,system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;}
input,button{font-size:inherit;}
::selection{background:var(--neon);color:var(--brand-ink);}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:var(--sp-9) 0;}
.section--tight{padding:var(--sp-7) 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:var(--sp-5);margin-bottom:var(--sp-6);}
.section-head h2{font-size:clamp(22px,3.2vw,32px);line-height:1.25;font-weight:700;color:var(--brand-ink);letter-spacing:-.4px;}
.section-head p{margin-top:8px;font-size:14px;color:var(--ink-3);}
.link-more{font-size:14px;font-weight:600;color:var(--brand-ink);border-bottom:2px solid var(--neon);padding-bottom:2px;white-space:nowrap;}
.link-more:hover{background:var(--neon);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn--primary{background:var(--brand-ink);color:#fff;}
.btn--primary:hover{background:var(--neon);color:var(--brand-ink);transform:translateY(-2px);}
.btn--accent{background:var(--neon);color:var(--brand-ink);}
.btn--accent:hover{background:var(--neon-deep);transform:translateY(-2px);}
.btn--ghost{background:transparent;border-color:var(--line);color:var(--brand-ink);}
.btn--ghost:hover{border-color:var(--brand-ink);}
.btn--onDark{background:transparent;border-color:rgba(255,255,255,.4);color:#fff;}
.btn--onDark:hover{background:#fff;color:var(--brand-ink);border-color:#fff;}
.btn--lg{height:52px;padding:0 30px;font-size:16px;}
.btn--block{width:100%;}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(198,245,58,.55);}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;padding:5px 12px;border-radius:999px;}
.badge--soft{background:rgba(198,245,58,.22);color:var(--brand-ink);}
.badge--dark{background:rgba(14,19,17,.06);color:var(--ink-2);}
.badge--heat{background:var(--heat);color:#fff;clip-path:polygon(8px 0,100% 0,100% 100%,0 100%);border-radius:0;padding:5px 14px 5px 18px;}
.badge--time{background:rgba(14,19,17,.62);color:#fff;padding:4px 10px;font-size:12px;font-weight:500;}

/* ---------- 顶栏导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(14,19,17,.08);}
.nav{display:flex;align-items:center;justify-content:space-between;gap:var(--sp-5);height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand__mark{width:32px;height:32px;border-radius:9px;background:var(--neon);display:grid;place-items:center;flex:0 0 auto;}
.brand__mark svg{width:19px;height:19px;}
.brand__text{font-size:16px;font-weight:700;color:var(--brand-ink);white-space:nowrap;letter-spacing:-.2px;}
.nav__list{display:flex;align-items:center;height:64px;gap:2px;}
.nav__link{
  position:relative;display:flex;align-items:center;height:100%;padding:0 12px;
  font-size:15px;color:var(--ink-2);transition:color .2s ease,background .2s ease;
}
.nav__link:hover{color:var(--brand-ink);}
.nav__link.is-active{color:var(--brand-ink);font-weight:600;}
.nav__link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;background:var(--neon);border-radius:2px;}
.nav__right{display:flex;align-items:center;gap:12px;}
.search{
  display:flex;align-items:center;gap:8px;height:40px;width:200px;padding:0 14px;
  background:#F1F3EF;border:1px solid transparent;border-radius:999px;
  transition:background .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.search:focus-within{background:#fff;border-color:var(--neon);box-shadow:0 0 0 3px rgba(198,245,58,.3);}
.search svg{width:16px;height:16px;flex:0 0 auto;stroke:var(--ink-3);fill:none;}
.search input{border:0;background:transparent;outline:none;width:100%;font-size:14px;color:var(--brand-ink);}
.search input::placeholder{color:var(--ink-3);}
.nav__burger{display:none;width:40px;height:40px;border:1px solid var(--line);background:#fff;border-radius:12px;cursor:pointer;align-items:center;justify-content:center;}
.nav__burger span{display:block;width:16px;height:2px;background:var(--brand-ink);position:relative;border-radius:2px;}
.nav__burger span::before,.nav__burger span::after{content:"";position:absolute;left:0;width:16px;height:2px;background:var(--brand-ink);border-radius:2px;}
.nav__burger span::before{top:-5px;}
.nav__burger span::after{top:5px;}

.nav-drawer{
  position:fixed;inset:0;z-index:200;background:#fff;padding:20px 24px 32px;
  display:flex;flex-direction:column;gap:8px;
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity .24s ease,transform .24s ease,visibility .24s ease;
  overflow-y:auto;
}
.nav-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.nav-drawer__top{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.drawer__close{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;font-size:20px;line-height:1;color:var(--brand-ink);cursor:pointer;}
.nav-drawer a.drawer__link{display:flex;align-items:center;justify-content:space-between;height:56px;font-size:17px;font-weight:600;color:var(--brand-ink);border-bottom:1px solid var(--line-soft);}
.nav-drawer a.drawer__link.is-active{color:var(--brand-ink);}
.nav-drawer a.drawer__link.is-active::after{content:"";width:18px;height:4px;background:var(--neon);border-radius:2px;}
.nav-drawer .search{width:100%;margin-top:16px;}
.nav-drawer .btn{margin-top:12px;}
body.no-scroll{overflow:hidden;}

/* ---------- 文章头部 ---------- */
.article-head{
  position:relative;color:#fff;padding:40px 0 56px;overflow:hidden;
  background-color:var(--brand-ink);
  background-image:linear-gradient(100deg,rgba(14,19,17,.94) 0%,rgba(14,19,17,.78) 55%,rgba(14,19,17,.6) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
}
.article-head::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  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;
}
.article-head .container{position:relative;z-index:1;}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:rgba(255,255,255,.62);}
.breadcrumb a{color:rgba(255,255,255,.72);}
.breadcrumb a:hover{color:var(--neon);}
.breadcrumb span.sep{color:rgba(255,255,255,.35);}
.breadcrumb .breadcrumb__current{color:#fff;}
.article-head__body{max-width:860px;margin-top:22px;}
.article-title{
  font-size:clamp(28px,4.4vw,46px);line-height:1.18;font-weight:800;letter-spacing:-.6px;
  color:#fff;margin:14px 0 0;
}
.article-lead{margin-top:16px;font-size:16px;line-height:1.85;color:rgba(255,255,255,.74);max-width:760px;}
.meta-row{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-top:20px;font-size:13px;color:rgba(255,255,255,.6);font-variant-numeric:tabular-nums;}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.34);}

/* ---------- 文章布局 ---------- */
.article-wrap{padding:var(--sp-8) 0 var(--sp-7);}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:var(--sp-7);align-items:start;}
.article-main{max-width:780px;min-width:0;}

.prose-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);padding:40px 44px;
}
.prose{font-size:17px;line-height:1.9;color:var(--ink-2);letter-spacing:0;}
.prose>*:first-child{margin-top:0;}
.prose p{margin:0 0 1.2em;}
.prose h2{position:relative;font-size:24px;line-height:1.4;font-weight:700;color:var(--brand-ink);margin:40px 0 16px;padding-left:16px;}
.prose h2::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;background:var(--neon);border-radius:2px;}
.prose h3{font-size:19px;line-height:1.5;font-weight:700;color:var(--brand-ink);margin:28px 0 12px;}
.prose h4{font-size:16px;font-weight:700;color:var(--brand-ink);margin:22px 0 10px;}
.prose ul,.prose ol{margin:0 0 1.2em;padding:0;}
.prose li{position:relative;padding-left:22px;margin-bottom:10px;}
.prose li::before{content:"";position:absolute;left:2px;top:.72em;width:8px;height:8px;background:var(--neon);border-radius:2px;}
.prose ol{counter-reset:item;}
.prose ol li{padding-left:30px;}
.prose ol li::before{counter-increment:item;content:counter(item);width:auto;height:auto;background:none;color:var(--brand-ink);font-weight:700;font-size:15px;left:0;top:0;font-family:var(--font-num);}
.prose blockquote{margin:24px 0;padding:16px 22px;background:#F2FBE0;border-left:3px solid var(--neon);border-radius:0 12px 12px 0;color:var(--ink-2);}
.prose blockquote p:last-child{margin-bottom:0;}
.prose img{border-radius:var(--r-img);margin:24px auto;}
.prose a{color:var(--brand-ink);text-decoration:underline;text-decoration-color:var(--neon);text-decoration-thickness:2px;text-underline-offset:3px;}
.prose a:hover{background:var(--neon);text-decoration-color:transparent;}
.prose strong{color:var(--brand-ink);font-weight:700;}
.prose hr{border:0;border-top:1px solid var(--line);margin:32px 0;}
.prose table{width:100%;border-collapse:collapse;margin:20px 0;font-size:15px;}
.prose th,.prose td{border-bottom:1px solid var(--line);padding:12px 14px;text-align:left;}
.prose th{background:#F6F7F4;color:var(--brand-ink);font-weight:600;}
.prose figure{margin:24px 0;}
.prose figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:10px;}

/* ---------- 空态 ---------- */
.empty-state{border:1px dashed var(--line);border-radius:var(--r-card);padding:56px 24px;text-align:center;background:#FAFBF8;}
.empty-state__icon{width:56px;height:56px;margin:0 auto 18px;border-radius:16px;background:rgba(198,245,58,.25);display:grid;place-items:center;}
.empty-state__icon svg{width:26px;height:26px;stroke:var(--brand-ink);fill:none;stroke-width:2;}
.empty-state h2{font-size:22px;color:var(--brand-ink);font-weight:700;}
.empty-state p{margin:10px auto 22px;max-width:420px;font-size:15px;color:var(--ink-3);}

/* ---------- 上一篇 / 下一篇 ---------- */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px;}
.post-nav__item{
  display:flex;flex-direction:column;gap:6px;padding:20px 22px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.post-nav__item:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D8DED6;}
.post-nav__item small{font-size:13px;color:var(--ink-3);}
.post-nav__item strong{font-size:16px;color:var(--brand-ink);line-height:1.5;font-weight:700;}
.post-nav__item--next{text-align:right;align-items:flex-end;}
.back-link{display:inline-flex;align-items:center;gap:8px;margin-top:22px;font-size:14px;font-weight:600;color:var(--brand-ink);border-bottom:2px solid var(--neon);padding-bottom:2px;}
.back-link:hover{background:var(--neon);}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px;}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--shadow-1);}
.side-card h3{font-size:15px;font-weight:700;color:var(--brand-ink);display:flex;align-items:center;gap:8px;margin-bottom:14px;}
.side-card h3::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--neon);}
.toc{display:flex;flex-direction:column;}
.toc a{position:relative;display:block;padding:9px 0 9px 16px;font-size:14px;color:var(--ink-2);border-left:1px solid var(--line);}
.toc a::before{content:"";position:absolute;left:-1px;top:8px;bottom:8px;width:2px;background:transparent;border-radius:2px;}
.toc a:hover{color:var(--brand-ink);}
.toc a:hover::before{background:var(--neon);}
.mini-list{display:flex;flex-direction:column;gap:14px;}
.mini-item{display:flex;gap:12px;align-items:flex-start;}
.mini-item img{width:68px;height:68px;border-radius:12px;object-fit:cover;flex:0 0 auto;background:linear-gradient(135deg,#E7ECE4,#C6F53A);}
.mini-item h4{font-size:14px;line-height:1.55;font-weight:600;color:var(--brand-ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.mini-item span{display:block;margin-top:6px;font-size:12px;color:var(--ink-3);}
.mini-item:hover h4{color:#000;}
.side-cta{background:var(--brand-ink);border-radius:var(--r-card);padding:24px;color:#fff;position:relative;overflow:hidden;}
.side-cta::after{content:"";position:absolute;right:-40px;bottom:-40px;width:130px;height:130px;border-radius:50%;background:rgba(198,245,58,.16);}
.side-cta h3{font-size:18px;font-weight:700;color:#fff;margin-bottom:8px;}
.side-cta p{font-size:13px;line-height:1.7;color:rgba(255,255,255,.68);margin-bottom:18px;position:relative;z-index:1;}
.side-cta .btn{position:relative;z-index:1;}

/* ---------- 卡片通用 ---------- */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.card__media{position:relative;aspect-ratio:16/10;overflow:hidden;background:linear-gradient(135deg,#E7ECE4,#C6F53A);}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.card:hover .card__media img{transform:scale(1.04);}
.card__media .badge{position:absolute;left:14px;top:14px;}
.card__body{padding:20px 22px 24px;}
.card__body h3{font-size:17px;line-height:1.5;font-weight:700;color:var(--brand-ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card__body p{margin-top:10px;font-size:14px;line-height:1.7;color:var(--ink-3);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card__meta{display:flex;align-items:center;gap:12px;margin-top:16px;font-size:12px;color:var(--ink-3);font-variant-numeric:tabular-nums;}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}

/* ---------- 口碑 ---------- */
.rail{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 4px 12px;scrollbar-width:none;}
.rail::-webkit-scrollbar{display:none;}
.review-card{
  flex:0 0 auto;width:320px;scroll-snap-align:start;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:22px;box-shadow:var(--shadow-1);
}
.review-card__top{display:flex;align-items:center;gap:12px;}
.avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--neon),#7FB61F);display:grid;place-items:center;font-size:15px;font-weight:700;color:var(--brand-ink);flex:0 0 auto;}
.review-card__name{font-size:14px;font-weight:700;color:var(--brand-ink);}
.review-card__tag{font-size:12px;color:var(--ink-3);}
.stars{margin-left:auto;font-size:13px;letter-spacing:1px;color:var(--neon);white-space:nowrap;}
.stars i{color:#DCE2D8;font-style:normal;}
.review-card p{margin-top:14px;font-size:14px;line-height:1.75;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.review-card__foot{display:flex;justify-content:space-between;margin-top:16px;font-size:12px;color:var(--ink-3);}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line);}
.faq__item{background:#fff;border:1px solid var(--line);border-bottom:0;position:relative;}
.faq__item:first-child{border-radius:var(--r-card) var(--r-card) 0 0;}
.faq__item:last-child{border-bottom:1px solid var(--line);border-radius:0 0 var(--r-card) var(--r-card);}
.faq__item::before{content:"";position:absolute;left:0;top:12px;bottom:12px;width:4px;background:transparent;border-radius:0 2px 2px 0;transition:background .22s ease;}
.faq__item.is-open::before{background:var(--neon);}
.faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 26px;background:transparent;border:0;text-align:left;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--brand-ink);
}
.faq__icon{width:22px;height:22px;flex:0 0 auto;position:relative;transition:transform .25s ease;}
.faq__icon::before,.faq__icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--brand-ink);border-radius:2px;transform:translate(-50%,-50%);}
.faq__icon::before{width:14px;height:2px;}
.faq__icon::after{width:2px;height:14px;}
.faq__item.is-open .faq__icon{transform:rotate(45deg);}
.faq__a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq__a p{padding:0 26px 24px;font-size:15px;line-height:1.8;color:var(--ink-2);}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:24px;padding:44px 48px;
  background-color:var(--brand-ink);color:#fff;
  background-image:linear-gradient(100deg,rgba(14,19,17,.95),rgba(14,19,17,.68)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.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:52px 52px;
}
.cta-band__text{position:relative;z-index:1;max-width:560px;}
.cta-band h2{font-size:clamp(22px,3vw,30px);font-weight:800;line-height:1.3;color:#fff;}
.cta-band p{margin-top:12px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);}
.cta-band__side{position:relative;z-index:1;display:flex;flex-direction:column;gap:18px;align-items:flex-end;}
.steps{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end;}
.step-chip{
  font-size:13px;font-weight:600;color:var(--brand-ink);background:var(--neon);
  padding:7px 16px 7px 20px;clip-path:polygon(10px 0,100% 0,100% 100%,0 100%);
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-ink);color:#fff;margin-top:var(--sp-9);border-top:2px solid var(--neon);}
.footer{padding:64px 24px 28px;}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;}
.footer__brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer__brand .brand__text{color:#fff;}
.footer__desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:320px;}
.footer h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.4px;}
.footer__links{display:flex;flex-direction:column;gap:11px;font-size:14px;}
.footer__links a,.footer__links span{color:var(--ink-3);}
.footer__links a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--neon);text-underline-offset:3px;}
.footer__bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:rgba(255,255,255,.5);}
.footer__note{margin-top:14px;font-size:12px;line-height:1.8;color:rgba(255,255,255,.38);}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .nav__list,.nav__right .search,.nav__right .btn{display:none;}
  .nav__burger{display:flex;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;}
  .article-main{max-width:none;}
  .article-side{position:static;}
  .prose-card{padding:32px 28px;}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 32px;}
  .cta-band__side{align-items:flex-start;width:100%;}
  .steps{justify-content:flex-start;}
  .section{padding:64px 0;}
}
@media (max-width:768px){
  .brand__text{font-size:14px;}
  .article-head{padding:28px 0 40px;}
  .article-wrap{padding:40px 0 32px;}
  .prose{font-size:16px;}
  .prose-card{padding:26px 20px;border-radius:16px;}
  .post-nav{grid-template-columns:1fr;}
  .post-nav__item--next{text-align:left;align-items:flex-start;}
  .grid-3{grid-template-columns:1fr;}
  .review-card{width:280px;}
  .faq__q{padding:18px 20px;font-size:15px;}
  .faq__a p{padding:0 20px 20px;}
  .footer{padding:48px 24px 24px;}
  .footer__grid{grid-template-columns:1fr;}
  .cta-band{border-radius:18px;padding:30px 22px;}
  .section{padding:48px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;margin-bottom:24px;}
}
@media (max-width:520px){
  .container{padding:0 20px;}
  .article-title{font-size:27px;}
  .article-lead{font-size:15px;}
  .btn{width:100%;}
  .btn--inline{width:auto;}
  .cta-band .btn,.side-cta .btn{width:100%;}
  .steps{width:100%;}
  .step-chip{flex:1 1 auto;text-align:center;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
}

/* roulang page: category2 */
:root{
  --brand-ink:#0E1311;
  --ink-2:#3A423E;
  --ink-3:#7A8480;
  --line:#E6E9E4;
  --bg:#F6F7F4;
  --card:#FFFFFF;
  --neon:#C6F53A;
  --heat:#FF5A2B;
  --r-card:18px;
  --r-img:14px;
  --r-badge:6px;
  --sh-1:0 2px 8px rgba(14,19,17,.06);
  --sh-2:0 12px 28px rgba(14,19,17,.12);
  --sh-3:0 20px 48px rgba(14,19,17,.18);
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px;
  --sp-6:32px; --sp-7:48px; --sp-8:64px; --sp-9:96px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;line-height:1.75;color:var(--ink-2);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--brand-ink);font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(198,245,58,.55);outline-offset:2px;border-radius:8px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section--dark{background:var(--brand-ink);color:#D7DBD6}
.section--dark h2,.section--dark h3{color:#fff}
.section--card{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

.section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section__head h2{font-size:clamp(22px,3.2vw,32px);line-height:1.25}
.section__head p{margin-top:10px;color:var(--ink-3);font-size:14px;max-width:620px}
.eyebrow{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--brand-ink);
  background:var(--neon);padding:4px 10px;border-radius:var(--r-badge);margin-bottom:14px;
}
.link-more{font-size:14px;font-weight:600;color:var(--brand-ink);border-bottom:2px solid var(--neon);padding-bottom:2px}
.link-more:hover{color:var(--brand-ink);border-bottom-color:var(--brand-ink)}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:100;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .2s}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.nav{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand__mark{width:32px;height:32px;border-radius:9px;background:var(--neon);display:grid;place-items:center;flex:none}
.brand__mark svg{width:18px;height:18px}
.brand__text{font-size:16px;font-weight:700;color:var(--brand-ink);white-space:nowrap}
.nav__list{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav__link{position:relative;display:block;padding:8px 12px;font-size:14px;font-weight:600;color:var(--ink-2);border-radius:8px;transition:color .18s}
.nav__link::after{content:"";position:absolute;left:12px;right:12px;bottom:-2px;height:2px;background:var(--neon);transform:scaleX(0);transform-origin:left;transition:transform .2s}
.nav__link:hover{color:var(--brand-ink)}
.nav__link.is-active{color:var(--brand-ink)}
.nav__link.is-active::after{transform:scaleX(1)}
.nav__right{display:flex;align-items:center;gap:12px;margin-left:auto}
.search{display:flex;align-items:center;gap:8px;width:200px;height:38px;padding:0 14px;background:#F1F3EF;border:1px solid transparent;border-radius:999px;transition:.2s}
.search svg{width:16px;height:16px;stroke:var(--ink-3);flex:none}
.search input{width:100%;border:0;background:transparent;outline:none;font-size:13px}
.search input::placeholder{color:var(--ink-3)}
.search:focus-within{background:#fff;border-color:rgba(198,245,58,.9);box-shadow:0 0 0 3px rgba(198,245,58,.3)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:999px;border:1px solid transparent;
  font-size:14px;font-weight:700;cursor:pointer;transition:transform .18s,background .18s,color .18s,border-color .18s;
  white-space:nowrap;
}
.btn--primary{background:var(--brand-ink);color:#fff}
.btn--primary:hover{background:var(--neon);color:var(--brand-ink);transform:scale(1.02)}
.btn--accent{background:var(--neon);color:var(--brand-ink)}
.btn--accent:hover{background:#B8E62C;transform:translateY(-2px)}
.btn--ghost{background:transparent;border-color:rgba(255,255,255,.4);color:#fff}
.btn--ghost:hover{background:#fff;color:var(--brand-ink);border-color:#fff}
.btn--line{background:transparent;border-color:var(--line);color:var(--brand-ink)}
.btn--line:hover{border-color:var(--brand-ink)}
.btn--lg{height:52px;padding:0 30px;font-size:15px}
.nav__burger{display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:12px;background:#fff;position:relative;cursor:pointer}
.nav__burger span,.nav__burger span::before,.nav__burger span::after{
  position:absolute;left:50%;width:16px;height:2px;background:var(--brand-ink);border-radius:2px;transform:translateX(-50%);transition:.2s
}
.nav__burger span{top:19px}
.nav__burger span::before{content:"";top:-5px}
.nav__burger span::after{content:"";top:5px}
.nav__burger.is-open span{background:transparent}
.nav__burger.is-open span::before{top:0;transform:translateX(-50%) rotate(45deg)}
.nav__burger.is-open span::after{top:0;transform:translateX(-50%) rotate(-45deg)}

/* ---------- hero ---------- */
.hero{position:relative;background:var(--brand-ink);color:#D7DBD6;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;opacity:.28;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:48px 48px;
}
.hero__inner{position:relative;z-index:2;padding:72px 0 64px;max-width:860px}
.hero h1{color:#fff;font-size:clamp(28px,5vw,52px);line-height:1.15;font-weight:800}
.hero__sub{margin-top:18px;font-size:17px;color:#B9C0BA;max-width:640px}
.hero__actions{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap}
.hero__meta{margin-top:28px;display:flex;gap:20px;flex-wrap:wrap;font-size:13px;color:#8E968F}
.hero__meta span{display:flex;align-items:center;gap:6px}
.hero__meta i{width:6px;height:6px;border-radius:50%;background:var(--neon);display:block}

/* ---------- breadcrumb ---------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line)}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);padding:14px 0;flex-wrap:wrap}
.crumb a:hover{color:var(--brand-ink)}
.crumb span[aria-current]{color:var(--brand-ink);font-weight:600}

/* ---------- stat strip ---------- */
.stat-strip{display:flex;gap:12px;flex-wrap:wrap;padding:28px 0}
.stat-chip{
  display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--line);
  border-radius:999px;padding:10px 20px 10px 12px;box-shadow:var(--sh-1);transition:.2s
}
.stat-chip:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.stat-chip__num{font-family:"Inter",DIN,system-ui,sans-serif;font-variant-numeric:tabular-nums;font-size:22px;font-weight:700;color:var(--brand-ink);line-height:1}
.stat-chip__label{font-size:13px;color:var(--ink-3)}
.stat-chip__dot{width:8px;height:8px;border-radius:2px;background:var(--neon);transform:skewX(-14deg)}

/* ---------- zigzag ---------- */
.zigzag{display:grid;gap:56px}
.zigzag__row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.zigzag__media{position:relative;border-radius:var(--r-card);overflow:hidden;background:linear-gradient(135deg,#0E1311,#3A423E);aspect-ratio:4/3;box-shadow:var(--sh-1)}
.zigzag__media img{width:100%;height:100%;object-fit:cover;border-radius:var(--r-card)}
.zigzag__badge{
  position:absolute;top:16px;left:16px;background:var(--neon);color:var(--brand-ink);
  font-size:12px;font-weight:700;padding:5px 12px;border-radius:var(--r-badge);
  clip-path:polygon(8px 0,100% 0,calc(100% - 8px) 100%,0 100%);
}
.zigzag__body h3{font-size:clamp(20px,2.4vw,26px);line-height:1.3;margin-bottom:14px}
.zigzag__body p{font-size:16px;line-height:1.8}
.zigzag__list{margin-top:20px;display:grid;gap:10px}
.zigzag__list li{position:relative;padding-left:22px;font-size:15px;color:var(--ink-2)}
.zigzag__list li::before{content:"";position:absolute;left:0;top:10px;width:8px;height:8px;background:var(--neon);border-radius:2px;transform:skewX(-14deg)}
.zigzag__num{font-family:"Inter",DIN,system-ui,sans-serif;font-size:13px;font-weight:700;color:var(--ink-3);letter-spacing:.1em;margin-bottom:10px;display:block}
.zigzag__row.is-reverse .zigzag__media{order:2}

/* ---------- mosaic cards ---------- */
.mosaic{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.mosaic__col{display:grid;gap:24px}
.mosaic__col--offset{padding-top:32px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);transition:transform .2s,box-shadow .2s;display:block;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.card__media{position:relative;overflow:hidden;background:linear-gradient(135deg,#0E1311,#3A423E)}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.card:hover .card__media img{transform:scale(1.04)}
.card__media--tall{aspect-ratio:4/5}
.card__media--wide{aspect-ratio:16/9}
.card__tag{
  position:absolute;top:14px;left:14px;font-size:12px;font-weight:700;padding:4px 10px;
  border-radius:var(--r-badge);background:rgba(198,245,58,.92);color:var(--brand-ink);
}
.card__tag--heat{background:var(--heat);color:#fff;clip-path:polygon(7px 0,100% 0,calc(100% - 7px) 100%,0 100%);border-radius:0}
.card__body{padding:20px}
.card__body h3{font-size:18px;line-height:1.45;margin-bottom:8px}
.card__body p{font-size:14px;color:var(--ink-3);line-height:1.7}
.card__foot{display:flex;align-items:center;gap:12px;margin-top:14px;font-size:12px;color:var(--ink-3)}
.card__foot b{font-family:"Inter",DIN,system-ui,sans-serif;font-variant-numeric:tabular-nums;color:var(--brand-ink);font-weight:700}

/* ---------- compare ---------- */
.compare__grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
.compare__col{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-1)}
.compare__col h3{font-size:19px;margin-bottom:6px}
.compare__col .compare__lead{font-size:13px;color:var(--ink-3);margin-bottom:20px}
.compare__col ul{display:grid;gap:14px}
.compare__col li{display:flex;gap:12px;font-size:15px;line-height:1.65}
.compare__col li i{
  flex:none;width:20px;height:20px;border-radius:50%;display:grid;place-items:center;margin-top:3px;
  background:#EFF1EC;color:var(--ink-3);font-size:12px;font-style:normal;font-weight:700;
}
.compare__col.is-highlight{border:1px solid rgba(198,245,58,.9);box-shadow:0 12px 32px rgba(198,245,58,.22);position:relative}
.compare__col.is-highlight::before{
  content:"更顺畅";position:absolute;top:-12px;left:24px;background:var(--neon);color:var(--brand-ink);
  font-size:12px;font-weight:700;padding:4px 12px;border-radius:var(--r-badge);
}
.compare__col.is-highlight li i{background:var(--neon);color:var(--brand-ink)}

/* ---------- reviews ---------- */
.reviews{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px;scrollbar-width:none}
.reviews::-webkit-scrollbar{display:none}
.review{
  flex:0 0 320px;scroll-snap-align:start;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-1)
}
.review__top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.review__avatar{
  width:40px;height:40px;border-radius:50%;background:var(--neon);color:var(--brand-ink);
  display:grid;place-items:center;font-weight:700;font-size:15px;flex:none
}
.review__name{font-size:14px;font-weight:700;color:var(--brand-ink)}
.review__stars{font-size:13px;color:var(--neon);letter-spacing:2px;line-height:1.2}
.review__stars s{color:#D8DCD4;text-decoration:none}
.review__text{font-size:14px;line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.review__foot{margin-top:14px;display:flex;justify-content:space-between;font-size:12px;color:var(--ink-3)}

/* ---------- faq ---------- */
.faq{display:grid;gap:0;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden}
.faq__item{border-bottom:1px solid var(--line)}
.faq__item:last-child{border-bottom:0}
.faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;
  background:transparent;border:0;padding:20px 24px;cursor:pointer;font-size:16px;font-weight:600;color:var(--brand-ink);
  position:relative;transition:background .18s
}
.faq__q:hover{background:#FBFCF9}
.faq__q::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:4px;background:var(--neon);transform:scaleY(0);transition:transform .2s}
.faq__item.is-open .faq__q::before{transform:scaleY(1)}
.faq__plus{position:relative;width:16px;height:16px;flex:none;transition:transform .25s}
.faq__plus::before,.faq__plus::after{content:"";position:absolute;background:var(--brand-ink);border-radius:2px}
.faq__plus::before{left:0;top:7px;width:16px;height:2px}
.faq__plus::after{top:0;left:7px;width:2px;height:16px}
.faq__item.is-open .faq__plus{transform:rotate(45deg)}
.faq__a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq__a p{padding:0 24px 22px;font-size:15px;line-height:1.75;color:var(--ink-2)}

/* ---------- cta ---------- */
.cta-band{background:var(--brand-ink);color:#D7DBD6;border-top:2px solid var(--neon)}
.cta-band .container{display:flex;align-items:center;justify-content:space-between;gap:40px;padding-top:64px;padding-bottom:64px;flex-wrap:wrap}
.cta-band h2{color:#fff;font-size:clamp(22px,3vw,30px);line-height:1.3}
.cta-band p{margin-top:10px;font-size:15px;color:#9AA29B;max-width:520px}
.cta-band__steps{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.step-tag{
  font-size:12px;font-weight:700;color:var(--brand-ink);background:var(--neon);padding:5px 14px;
  clip-path:polygon(8px 0,100% 0,calc(100% - 8px) 100%,0 100%);
}
.cta-band__right{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-ink);color:#9AA29B;border-top:2px solid var(--neon)}
.footer{padding:64px 24px 32px}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer__brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer__brand .brand__text{color:#fff}
.footer__desc{font-size:14px;line-height:1.8;max-width:340px}
.footer h4{color:#fff;font-size:14px;margin-bottom:16px;letter-spacing:.02em}
.footer__links{display:grid;gap:10px;font-size:14px}
.footer__links a{color:#9AA29B;transition:color .18s}
.footer__links a:hover{color:#fff;text-decoration:underline}
.footer__links span{color:#7A8480;font-size:13px}
.footer__bottom{
  margin-top:40px;padding-top:24px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#7A8480
}
.footer__note{margin-top:16px;font-size:12px;color:#6C7570;line-height:1.7}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .nav__list{display:none}
  .nav__burger{display:block}
  .search{display:none}
  .section{padding:64px 0}
  .zigzag__row{gap:32px}
  .footer__grid{grid-template-columns:1fr 1fr}
  .mosaic__col--offset{padding-top:0}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .section{padding:48px 0}
  .hero__inner{padding:48px 0 44px}
  .hero__sub{font-size:15px}
  .hero__actions .btn{flex:1 1 100%}
  .zigzag__row{grid-template-columns:1fr;gap:24px}
  .zigzag__row.is-reverse .zigzag__media{order:0}
  .mosaic{grid-template-columns:1fr}
  .compare__grid{grid-template-columns:1fr}
  .reviews .review{flex:0 0 82%}
  .cta-band .container{flex-direction:column;align-items:flex-start;padding-top:48px;padding-bottom:48px}
  .cta-band__right{width:100%}
  .cta-band__right .btn{flex:1 1 100%}
  .footer{padding:48px 20px 28px}
  .footer__grid{grid-template-columns:1fr;gap:32px}
  .faq__q{padding:18px 20px;font-size:15px}
  .faq__a p{padding:0 20px 20px}
  .stat-strip{flex-wrap:nowrap;overflow-x:auto;padding:20px 0;scrollbar-width:none}
  .stat-strip::-webkit-scrollbar{display:none}
  .stat-chip{flex:0 0 auto}
}
@media (max-width:480px){
  .brand__text{font-size:13px}
  .nav{gap:12px;height:56px}
  .stat-chip__num{font-size:19px}
  .review{flex:0 0 88%}
}

/* ---------- mobile drawer ---------- */
.drawer{
  position:fixed;inset:64px 0 0;background:#fff;z-index:99;padding:16px 20px 32px;
  display:flex;flex-direction:column;gap:8px;transform:translateY(-8px);opacity:0;pointer-events:none;
  transition:opacity .2s,transform .2s;overflow-y:auto;border-top:1px solid var(--line)
}
.drawer.is-open{opacity:1;transform:none;pointer-events:auto}
.drawer a{display:flex;align-items:center;height:56px;font-size:16px;font-weight:600;color:var(--brand-ink);border-bottom:1px solid var(--line)}
.drawer a.is-active{color:var(--brand-ink)}
.drawer a.is-active::before{content:"";width:6px;height:6px;background:var(--neon);border-radius:2px;margin-right:10px;transform:skewX(-14deg)}
.drawer .btn{margin-top:16px;width:100%}
body.is-locked{overflow:hidden}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}