/* roulang page: index */
:root{
  --ink:#0F1213;
  --ink-2:#2B3134;
  --ink-3:#5C666A;
  --line:#E6E2DA;
  --bg:#F7F5F1;
  --surface:#FFFFFF;
  --mint:#00C2A8;
  --mint-deep:#009E8A;
  --mint-soft:#E3F7F3;
  --coral:#FF6A3D;
  --r-xl:20px;
  --r-lg:18px;
  --r-md:14px;
  --r-btn:12px;
  --r-pill:999px;
  --sh-sm:0 1px 2px rgba(15,18,19,.06);
  --sh-md:0 6px 18px rgba(15,18,19,.08);
  --sh-lg:0 16px 40px rgba(15,18,19,.12);
  --ease:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--ink-2);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--mint-deep)}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
button{font:inherit;cursor:pointer}
input,textarea{font:inherit}
:focus-visible{outline:2px solid var(--mint);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1280px}}
.section{padding:88px 0}
.section--tight{padding:72px 0}
.section-head{max-width:760px;margin-bottom:40px}
.section-head__tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--mint-deep);background:var(--mint-soft);
  border-radius:var(--r-pill);padding:6px 14px;margin-bottom:16px;
}
.section-head__tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--mint)}
h2.section-title{font-size:clamp(23px,2.4vw,28px);line-height:1.35;font-weight:800;color:var(--ink);letter-spacing:.02em}
.section-sub{margin-top:12px;font-size:16px;color:var(--ink-3);max-width:660px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--mint-soft);color:var(--mint-deep);
  border-radius:var(--r-pill);padding:4px 12px;font-size:13px;font-weight:600;white-space:nowrap;
}
.badge--hot{background:var(--coral);color:#fff}
.tag{display:inline-flex;align-items:center;background:#F1EFEA;color:var(--ink-3);border-radius:var(--r-pill);padding:3px 10px;font-size:12.5px;white-space:nowrap}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:0;cursor:pointer;
  transition:transform var(--ease),background var(--ease),box-shadow var(--ease),color var(--ease);
}
.btn--primary{background:var(--mint);color:#fff;box-shadow:0 6px 18px rgba(0,194,168,.28)}
.btn--primary:hover{background:var(--mint-deep);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(0,194,168,.32)}
.btn--ghost{background:transparent;color:var(--mint-deep);border:1.5px solid var(--mint)}
.btn--ghost:hover{background:var(--mint-soft);color:var(--mint-deep);transform:translateY(-2px)}
.btn--dark{background:transparent;color:#fff;border:1.5px solid var(--mint)}
.btn--dark:hover{background:var(--mint);border-color:var(--mint);color:#fff}
.btn--pill{border-radius:var(--r-pill)}
.btn:active{transform:translateY(1px)}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:70;
  background:rgba(247,245,241,.97);
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh-sm);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-md)}
.site-header__bar{height:68px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.site-header.is-scrolled .site-header__bar{height:60px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand__mark{
  width:32px;height:32px;border-radius:9px;
  background:linear-gradient(135deg,var(--mint),var(--mint-deep));
  color:#fff;font-size:13px;font-weight:800;letter-spacing:.04em;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 12px rgba(0,194,168,.3);
}
.brand__text{font-size:16px;font-weight:800;color:var(--ink);letter-spacing:.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{
  position:relative;display:inline-block;padding:8px 12px;border-radius:10px;
  font-size:15px;font-weight:500;color:var(--ink-2);white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:var(--mint);transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.nav-links a:hover{color:var(--mint-deep);background:var(--mint-soft)}
.nav-links a:hover::after,.nav-links a.is-active::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--mint-deep);font-weight:600}
.header-cta{flex-shrink:0}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:12px;
  background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform var(--ease),opacity var(--ease)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-drawer{
  position:fixed;top:68px;left:0;right:0;bottom:0;z-index:65;
  background:var(--bg);padding:24px;
  display:none;flex-direction:column;gap:6px;
  border-top:1px solid var(--line);
}
.mobile-drawer.is-open{display:flex}
.mobile-drawer a{
  padding:14px 16px;border-radius:var(--r-md);background:#fff;
  border:1px solid var(--line);font-size:16px;font-weight:600;color:var(--ink);
}
.mobile-drawer a.is-active{background:var(--mint-soft);border-color:rgba(0,194,168,.4);color:var(--mint-deep)}
.mobile-drawer .btn{margin-top:12px}

/* ---------- Hero ---------- */
.hero{position:relative;padding:132px 0 88px;overflow:hidden;background:var(--ink)}
.hero__bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center right;
}
.hero__bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(15,18,19,.95) 0%,rgba(15,18,19,.82) 42%,rgba(18,58,54,.62) 100%);
}
.hero__inner{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero__eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(0,194,168,.16);color:#8DF0E2;border:1px solid rgba(0,194,168,.35);
  border-radius:var(--r-pill);padding:6px 14px;font-size:13px;font-weight:600;margin-bottom:22px;
}
.hero h1{
  font-size:clamp(28px,4vw,40px);line-height:1.25;font-weight:800;
  color:#fff;letter-spacing:.01em;
}
.hero__sub{margin-top:18px;font-size:17px;font-weight:600;color:#9EF2E5}
.hero__lead{margin-top:16px;font-size:16px;line-height:1.85;color:rgba(255,255,255,.72);max-width:540px}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero__stats{display:flex;flex-wrap:wrap;gap:36px;margin-top:44px;padding-top:28px;border-top:1px solid rgba(255,255,255,.14)}
.hero__stats li{list-style:none}
.hero__stats strong{
  display:block;font-size:24px;font-weight:800;color:#fff;
  font-variant-numeric:tabular-nums;letter-spacing:.01em;
}
.hero__stats span{font-size:13.5px;color:rgba(255,255,255,.6)}
.hero__stage{display:flex;justify-content:center}
.phone-card{
  position:relative;width:100%;max-width:330px;aspect-ratio:9/16;
  border-radius:var(--r-xl);overflow:hidden;
  border:1px solid rgba(255,255,255,.18);box-shadow:var(--sh-lg);
  background:#111;
}
.phone-card img{width:100%;height:100%;object-fit:cover}
.phone-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(15,18,19,.88) 0%,rgba(15,18,19,.1) 45%,rgba(15,18,19,.32) 100%);
}
.phone-card__dur{
  position:absolute;top:14px;left:14px;z-index:3;
  background:rgba(15,18,19,.7);color:#fff;border-radius:var(--r-pill);
  padding:3px 10px;font-size:12.5px;font-variant-numeric:tabular-nums;
}
.phone-card__hot{
  position:absolute;top:14px;right:14px;z-index:3;
  background:var(--coral);color:#fff;border-radius:var(--r-pill);
  padding:3px 10px;font-size:12.5px;font-weight:600;
}
.phone-card__play{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);z-index:3;
  width:56px;height:56px;border-radius:50%;
  background:rgba(255,255,255,.9);border:2px solid rgba(0,194,168,.9);
  display:flex;align-items:center;justify-content:center;
}
.phone-card__play::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;
}
.phone-card__cap{
  position:absolute;left:16px;right:16px;bottom:16px;z-index:3;
  color:#fff;font-size:14.5px;font-weight:600;line-height:1.5;
}
.phone-card__cap small{display:block;font-weight:400;font-size:12.5px;color:rgba(255,255,255,.7);margin-top:4px}

/* ---------- Clip rail ---------- */
.clip-rail{
  display:flex;gap:20px;overflow-x:auto;padding:6px 24px 24px;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
}
.clip-rail::-webkit-scrollbar{height:6px}
.clip-rail::-webkit-scrollbar-thumb{background:#D8D3C8;border-radius:6px}
.clip-card{
  position:relative;flex:0 0 230px;aspect-ratio:9/16;border-radius:var(--r-lg);
  overflow:hidden;background:#111;border:1px solid var(--line);box-shadow:var(--sh-md);
  scroll-snap-align:start;transition:transform var(--ease),box-shadow var(--ease);
}
.clip-card:hover{transform:translateY(-2px);box-shadow:var(--sh-lg)}
.clip-card img{width:100%;height:100%;object-fit:cover}
.clip-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(15,18,19,.9) 0%,rgba(15,18,19,.05) 52%,rgba(15,18,19,.3) 100%);
}
.clip-card__dur{
  position:absolute;top:12px;left:12px;z-index:2;
  background:rgba(15,18,19,.72);color:#fff;border-radius:var(--r-pill);
  padding:2px 9px;font-size:12px;font-variant-numeric:tabular-nums;
}
.clip-card__hover-play{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) scale(.86);z-index:2;
  width:46px;height:46px;border-radius:50%;border:2px solid rgba(255,255,255,.9);
  background:rgba(0,194,168,.85);opacity:0;transition:opacity var(--ease),transform var(--ease);
}
.clip-card__hover-play::before{
  content:"";position:absolute;top:50%;left:50%;transform:translate(-40%,-50%);
  width:0;height:0;border-left:13px solid #fff;border-top:8px solid transparent;border-bottom:8px solid transparent;
}
.clip-card:hover .clip-card__hover-play{opacity:1;transform:translate(-50%,-50%) scale(1)}
.clip-card__body{position:absolute;left:14px;right:14px;bottom:14px;z-index:2;color:#fff}
.clip-card__tag{
  display:inline-block;background:rgba(0,194,168,.9);color:#fff;
  border-radius:var(--r-pill);padding:2px 9px;font-size:11.5px;font-weight:600;margin-bottom:8px;
}
.clip-card__title{font-size:15px;font-weight:600;line-height:1.45;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,.75);
  font-variant-numeric:tabular-nums;
}

/* ---------- Rank list ---------- */
.rank-list{max-width:760px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-md)}
.rank-item{display:flex;align-items:center;gap:20px;padding:22px 24px;border-bottom:1px solid var(--line);transition:background var(--ease)}
.rank-item:last-child{border-bottom:0}
.rank-item:hover{background:var(--mint-soft)}
.rank-item__no{
  flex:0 0 48px;font-size:26px;font-weight:800;color:var(--mint);
  font-variant-numeric:tabular-nums;line-height:1;
}
.rank-item__body{flex:1 1 auto;min-width:0}
.rank-item__body h3{font-size:18px;font-weight:700;color:var(--ink);line-height:1.45}
.rank-item__body p{margin-top:6px;font-size:14.5px;color:var(--ink-3);line-height:1.7}
.rank-item__tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.rank-item__go{
  flex:0 0 auto;width:38px;height:38px;border-radius:50%;
  border:1.5px solid var(--line);display:flex;align-items:center;justify-content:center;
  color:var(--ink-3);font-size:16px;transition:transform var(--ease),border-color var(--ease),color var(--ease);
}
.rank-item:hover .rank-item__go{transform:translateX(4px);border-color:var(--mint);color:var(--mint-deep)}

/* ---------- News (CMS) ---------- */
.section--news{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.news-card{
  height:100%;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-sm);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  overflow:hidden;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md);border-color:rgba(0,194,168,.45)}
.news-card__link{display:flex;flex-direction:column;height:100%;padding:20px}
.news-card__badge{
  align-self:flex-start;background:var(--mint-soft);color:var(--mint-deep);
  border-radius:var(--r-pill);padding:3px 12px;font-size:12.5px;font-weight:600;margin-bottom:14px;
}
.news-card__title{
  font-size:18px;font-weight:700;color:var(--ink);line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card__desc{
  margin-top:10px;font-size:14.5px;color:var(--ink-3);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card__meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:18px;border-top:1px solid var(--line);
  font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums;
}
.news-card__more{color:var(--mint-deep);font-weight:600}
.news-empty{
  text-align:center;background:#fff;border:1px dashed var(--line);border-radius:var(--r-lg);
  padding:64px 24px;box-shadow:var(--sh-sm);
}
.news-empty__icon{
  width:56px;height:56px;margin:0 auto 18px;border-radius:50%;
  background:var(--mint-soft);color:var(--mint-deep);font-size:24px;
  display:flex;align-items:center;justify-content:center;
}
.news-empty p{font-size:15.5px;color:var(--ink-3);margin-bottom:20px}

/* ---------- Reviews ---------- */
.review-rail{
  display:flex;gap:18px;overflow-x:auto;padding:6px 0 22px;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
  mask-image:linear-gradient(to right,#000 88%,transparent 100%);
  -webkit-mask-image:linear-gradient(to right,#000 88%,transparent 100%);
}
.review-rail::-webkit-scrollbar{height:6px}
.review-rail::-webkit-scrollbar-thumb{background:#D8D3C8;border-radius:6px}
.review-card{
  position:relative;flex:0 0 300px;background:#fff;border:1px solid var(--line);
  border-radius:16px;padding:22px;box-shadow:var(--sh-sm);scroll-snap-align:start;
}
.review-card::before{
  content:"";position:absolute;left:28px;bottom:-9px;width:16px;height:16px;
  background:#fff;border-right:1px solid var(--line);border-bottom:1px solid var(--line);
  transform:rotate(45deg);
}
.review-card__top{display:flex;align-items:center;gap:12px}
.review-card__avatar{
  width:40px;height:40px;border-radius:50%;background:var(--mint-soft);color:var(--mint-deep);
  font-weight:700;font-size:15px;display:flex;align-items:center;justify-content:center;
}
.review-card__name{font-size:14.5px;font-weight:600;color:var(--ink)}
.review-card__stars{color:var(--coral);font-size:13px;letter-spacing:2px}
.review-card__text{margin-top:14px;font-size:15px;line-height:1.8;color:var(--ink-2)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-md);overflow:hidden}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;background:transparent;border:0;text-align:left;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 24px;font-size:17px;font-weight:600;color:var(--ink);line-height:1.6;
  transition:background var(--ease);
}
.faq-q:hover{background:var(--mint-soft)}
.faq-q__icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  background:var(--mint-soft);color:var(--mint-deep);font-size:16px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  transition:transform var(--ease),background var(--ease),color var(--ease);
}
.faq-item.is-open .faq-q__icon{transform:rotate(45deg);background:var(--mint);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height 220ms ease-out}
.faq-a__inner{padding:0 24px 24px;font-size:15px;line-height:1.85;color:var(--ink-3)}

/* ---------- CTA band ---------- */
.cta-band{
  background:linear-gradient(135deg,#0F1213 0%,#123A36 100%);
  padding:80px 0;text-align:center;position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;top:-140px;right:-80px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,194,168,.34),transparent 68%);
}
.cta-band__inner{position:relative;max-width:720px;margin:0 auto}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;color:#fff;line-height:1.4;letter-spacing:.02em}
.cta-band p{margin-top:16px;font-size:16px;color:rgba(255,255,255,.72)}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:32px}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.66);padding:68px 0 28px;font-size:14px}
.footer-col h4{font-size:14px;font-weight:700;color:var(--mint);margin-bottom:18px;letter-spacing:.06em}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand span{color:#fff;font-size:16px;font-weight:800}
.footer-brand .brand__mark{width:30px;height:30px;font-size:12px}
.footer-desc{line-height:1.85;color:rgba(255,255,255,.6);max-width:320px}
.footer-list li{margin-bottom:11px}
.footer-list a{color:rgba(255,255,255,.66)}
.footer-list a:hover{color:var(--mint)}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.45);
}

/* ---------- Floating CTA & mobile tab ---------- */
.float-buy{
  position:fixed;right:28px;bottom:28px;z-index:60;
  height:52px;padding:0 26px;border-radius:var(--r-pill);
  background:var(--mint);color:#fff;font-weight:700;font-size:15px;
  display:inline-flex;align-items:center;gap:8px;box-shadow:var(--sh-lg);
  transition:transform var(--ease),background var(--ease);
}
.float-buy:hover{background:var(--mint-deep);color:#fff;transform:translateY(-2px)}
.mobile-tab{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:68;
  background:#fff;border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -6px 18px rgba(15,18,19,.08);
}
.mobile-tab__inner{display:flex;height:60px}
.mobile-tab a{
  flex:1 1 0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:11px;color:var(--ink-3);position:relative;
}
.mobile-tab a::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%) scaleX(0);width:26px;height:2px;border-radius:2px;background:var(--mint);transition:transform var(--ease)}
.mobile-tab a.is-active{color:var(--mint-deep);font-weight:600}
.mobile-tab a.is-active::before{transform:translateX(-50%) scaleX(1)}
.mobile-tab svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}

/* ---------- Responsive ---------- */
@media (max-width:1023px){
  .nav-links,.header-cta{display:none}
  .nav-toggle{display:flex}
  .hero{padding:112px 0 72px}
  .hero__inner{grid-template-columns:1fr;gap:44px}
  .hero__stage{order:-1}
  .phone-card{max-width:262px}
  .section{padding:64px 0}
  .float-buy{display:none}
  .mobile-tab{display:block}
  body{padding-bottom:64px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .clip-rail{padding:0 16px 20px}
  .clip-card{flex:0 0 186px}
  .section{padding:56px 0}
  .section-head{margin-bottom:28px}
  .hero__stats{gap:24px}
  .hero__stats strong{font-size:21px}
  .rank-item{gap:14px;padding:18px 16px}
  .rank-item__no{flex:0 0 38px;font-size:21px}
  .review-card{flex:0 0 262px;padding:18px}
  .faq-q{padding:18px 16px;font-size:16px}
  .faq-a__inner{padding:0 16px 20px}
  .cta-band{padding:60px 0}
  .site-footer{padding:52px 0 88px}
}
@media (max-width:520px){
  .brand__text{font-size:15px}
  .hero h1{font-size:26px}
  .hero__actions .btn{width:100%}
  .news-card__link{padding:18px}
  .rank-item__go{display:none}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --ink:#0F1213;
  --ink-2:#2B3134;
  --gray:#5C666A;
  --line:#E6E2DA;
  --bg:#F7F5F1;
  --surface:#FFFFFF;
  --primary:#00C2A8;
  --primary-dark:#009E8A;
  --primary-soft:#E3F7F3;
  --accent:#FF6A3D;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --sh-sm:0 1px 2px rgba(15,18,19,.06);
  --sh-md:0 6px 18px rgba(15,18,19,.08);
  --sh-lg:0 16px 40px rgba(15,18,19,.12);
  --container:1200px;
  --header-h:68px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  padding-bottom:72px;
}
img{max-width:100%;display:block;border-radius:var(--r-sm);object-fit:cover;}
a{color:inherit;text-decoration:none;transition:color .18s ease-out;}
a:hover{color:var(--primary-dark);}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;line-height:1.3;letter-spacing:.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,textarea{font-family:inherit;font-size:inherit;}
button{cursor:pointer;border:0;background:none;color:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 16px;}
@media (min-width:768px){.container{padding:0 24px;}}
@media (min-width:1440px){:root{--container:1280px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh-sm);
  transition:box-shadow .2s ease-out;
}
.site-header.is-scrolled{box-shadow:var(--sh-md);}
.site-header__bar{display:flex;align-items:center;gap:12px;height:var(--header-h);transition:height .2s ease-out;}
.site-header.is-scrolled .site-header__bar{height:60px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand__mark{
  width:34px;height:34px;border-radius:10px;background:var(--ink);color:var(--primary);
  display:grid;place-items:center;font-size:13px;font-weight:800;letter-spacing:.06em;line-height:1;
}
.brand__text{font-size:16px;font-weight:800;color:var(--ink);letter-spacing:.01em;}
.nav-links{display:none;}
.header-cta{display:none;}
.nav-toggle{display:flex;flex-direction:column;justify-content:center;gap:5px;margin-left:auto;width:42px;height:42px;border-radius:10px;padding:0 10px;}
.nav-toggle span{display:block;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease-out,opacity .2s ease-out;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
@media (min-width:1024px){
  .nav-toggle{display:none;}
  .nav-links{display:flex;align-items:center;gap:2px;margin-left:20px;}
  .nav-links a{position:relative;padding:9px 12px;border-radius:9px;font-size:15px;font-weight:500;color:var(--ink-2);}
  .nav-links a:hover{color:var(--primary-dark);background:var(--primary-soft);}
  .nav-links a.is-active{color:var(--primary-dark);font-weight:700;}
  .nav-links a.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;border-radius:2px;background:var(--primary);}
  .header-cta{display:inline-flex;margin-left:auto;}
}
.nav-drawer{
  position:fixed;left:0;right:0;top:var(--header-h);bottom:0;z-index:59;
  background:var(--surface);padding:20px 20px 32px;overflow-y:auto;
  transform:translateY(-10px);opacity:0;visibility:hidden;transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s;
}
.nav-drawer.is-open{transform:none;opacity:1;visibility:visible;}
.nav-drawer a.drawer-link{display:flex;align-items:center;justify-content:space-between;padding:16px 4px;font-size:16px;font-weight:600;color:var(--ink-2);border-bottom:1px solid var(--line);}
.nav-drawer a.drawer-link:hover{color:var(--primary-dark);}
.nav-drawer .btn{margin-top:20px;width:100%;justify-content:center;}
@media (min-width:1024px){.nav-drawer{display:none;}}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 20px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1;
  transition:transform .18s ease-out,background .18s ease-out,color .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.btn:active{transform:translateY(1px);}
.btn--primary{background:var(--primary);color:#fff;box-shadow:var(--sh-sm);}
.btn--primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-md);}
.btn--ghost{border:1.5px solid var(--primary);color:var(--primary-dark);background:transparent;}
.btn--ghost:hover{background:var(--primary-soft);color:var(--primary-dark);transform:translateY(-2px);}
.btn--pill{border-radius:999px;}
.btn--dark-ghost{border:1.5px solid var(--primary);color:#fff;background:transparent;}
.btn--dark-ghost:hover{background:var(--primary);color:#0F1213;transform:translateY(-2px);}

/* ---------- badges ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:999px;font-size:12.5px;font-weight:600;line-height:1.6;background:var(--primary-soft);color:var(--primary-dark);}
.badge--accent{background:var(--accent);color:#fff;}
.badge--outline{background:transparent;border:1px solid var(--line);color:var(--gray);}

/* ---------- breadcrumb ---------- */
.breadcrumb{padding:34px 0 0;font-size:13px;color:var(--gray);display:flex;align-items:center;gap:8px;flex-wrap:nowrap;overflow:hidden;}
.breadcrumb a{color:var(--gray);}
.breadcrumb a:hover{color:var(--primary-dark);}
.breadcrumb .sep{color:#B9B2A6;}
.breadcrumb .crumb-current{color:var(--ink-2);font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:60vw;}

/* ---------- article head ---------- */
.article-head{max-width:760px;margin:0 auto;padding:20px 0 0;}
.article-head h1{font-size:clamp(26px,4vw,38px);line-height:1.28;letter-spacing:.01em;}
.article-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:18px;font-size:13.5px;color:var(--gray);}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#CFC8BB;}
.article-meta .author{display:flex;align-items:center;gap:8px;color:var(--ink-2);font-weight:600;}
.article-meta .author .avatar{width:28px;height:28px;border-radius:50%;background:var(--primary-soft);color:var(--primary-dark);display:grid;place-items:center;font-size:12px;font-weight:800;}
.share-row{margin-left:auto;display:flex;align-items:center;gap:8px;}
.share-row button{width:34px;height:34px;border-radius:50%;border:1px solid var(--line);background:var(--surface);color:var(--gray);display:grid;place-items:center;font-size:13px;transition:all .18s ease-out;}
.share-row button:hover{color:var(--primary-dark);border-color:var(--primary);background:var(--primary-soft);}

/* ---------- article body ---------- */
.article-wrap{max-width:760px;margin:0 auto;padding:36px 0 0;}
.article-hero{margin:0 0 28px;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-md);}
.article-hero img{width:100%;aspect-ratio:16/9;border-radius:0;}
.article-body{font-size:17px;line-height:1.9;color:var(--ink-2);text-align:left;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  position:relative;margin:40px 0 .7em;padding-left:14px;
  font-size:25px;font-weight:700;line-height:1.4;letter-spacing:.02em;color:var(--ink);
}
.article-body h2::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:3px;background:var(--primary);}
.article-body h3{margin:30px 0 .6em;font-size:19px;font-weight:600;color:var(--ink);}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:6px;}
.article-body li{position:relative;padding-left:20px;margin-bottom:.5em;line-height:1.8;}
.article-body ul li::before{content:"";position:absolute;left:2px;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--primary);}
.article-body ol{counter-reset:item;}
.article-body ol li{counter-increment:item;}
.article-body ol li::before{content:counter(item);position:absolute;left:0;top:0;color:var(--primary-dark);font-weight:800;font-size:15px;}
.article-body blockquote{
  margin:1.4em 0;padding:16px 20px;border-left:4px solid var(--primary);
  background:var(--primary-soft);border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{margin:1.4em 0;border-radius:var(--r-sm);box-shadow:var(--sh-sm);}
.article-body a{color:var(--primary-dark);border-bottom:1px solid rgba(0,158,138,.35);}
.article-body a:hover{color:var(--primary);}
.article-body table{width:100%;border-collapse:collapse;margin:1.4em 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(--primary-soft);color:var(--ink);font-weight:700;}
.article-body code{background:#F1EEE8;border-radius:6px;padding:2px 6px;font-size:14px;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0;}

.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-lg);background:var(--surface);
  padding:56px 24px;text-align:center;box-shadow:var(--sh-sm);
}
.empty-state i{font-size:30px;color:var(--primary);}
.empty-state h3{margin:16px 0 8px;font-size:20px;}
.empty-state p{color:var(--gray);font-size:15px;margin-bottom:22px;}

/* ---------- tags & actions ---------- */
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin:36px 0 0;padding-top:24px;border-top:1px solid var(--line);}
.tag{padding:6px 14px;border-radius:999px;border:1px solid var(--line);background:var(--surface);font-size:13.5px;color:var(--gray);transition:all .18s ease-out;}
.tag:hover{border-color:var(--primary);color:var(--primary-dark);background:var(--primary-soft);}
.action-bar{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:26px;}
.action-btn{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:999px;border:1px solid var(--line);background:var(--surface);font-size:14px;color:var(--ink-2);transition:all .18s ease-out;box-shadow:var(--sh-sm);}
.action-btn:hover{border-color:var(--primary);color:var(--primary-dark);background:var(--primary-soft);transform:translateY(-2px);}
.action-btn i{color:var(--primary-dark);}

/* ---------- pager ---------- */
.pager{display:grid;grid-template-columns:1fr;gap:16px;margin-top:44px;}
@media (min-width:768px){.pager{grid-template-columns:1fr 1fr;}}
.pager-card{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:18px 20px;box-shadow:var(--sh-sm);transition:all .18s ease-out;
}
.pager-card:hover{transform:translateY(-3px);box-shadow:var(--sh-md);border-color:var(--primary);}
.pager-card .label{font-size:12.5px;font-weight:700;color:var(--primary-dark);letter-spacing:.04em;}
.pager-card .title{margin-top:8px;font-size:16.5px;font-weight:700;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.pager-card--next{text-align:right;}

/* ---------- related ---------- */
.section{padding:80px 0;}
@media (max-width:1023px){.section{padding:64px 0;}}
@media (max-width:767px){.section{padding:52px 0;}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px;}
.section-head h2{font-size:clamp(22px,3vw,28px);font-weight:700;letter-spacing:.02em;}
.section-head p{margin-top:8px;color:var(--gray);font-size:14.5px;}
.back-pill{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border-radius:999px;border:1.5px solid var(--primary);color:var(--primary-dark);font-size:14.5px;font-weight:600;transition:all .18s ease-out;}
.back-pill:hover{background:var(--primary-soft);transform:translateY(-2px);}
.card-grid{display:grid;gap:22px;grid-template-columns:1fr;}
@media (min-width:600px){.card-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,1fr);}}
.post-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-sm);transition:all .2s ease-out;
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--sh-md);border-color:#D8D2C7;}
.post-card__thumb{position:relative;overflow:hidden;}
.post-card__thumb img{width:100%;aspect-ratio:16/9;border-radius:0;transition:transform .3s ease-out;}
.post-card:hover .post-card__thumb img{transform:scale(1.04);}
.post-card__body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1;}
.post-card__body h3{font-size:17px;font-weight:700;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card__body p{margin-top:10px;font-size:14.5px;color:var(--gray);line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.post-card__meta{margin-top:auto;padding-top:16px;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--gray);}
.post-card__meta .dot{width:4px;height:4px;border-radius:50%;background:#CFC8BB;}

/* ---------- CTA band ---------- */
.cta-band{
  background:linear-gradient(135deg,#0F1213 0%,#123A36 100%);
  border-radius:0;padding:72px 0;
}
.cta-band__inner{display:flex;flex-direction:column;gap:24px;align-items:flex-start;}
.cta-band h2{color:#fff;font-size:clamp(22px,3vw,30px);font-weight:800;line-height:1.3;}
.cta-band p{margin-top:12px;color:rgba(255,255,255,.72);font-size:15.5px;max-width:560px;}
.cta-band .btn{align-self:flex-start;}
@media (min-width:1024px){
  .cta-band{padding:88px 0;}
  .cta-band__inner{flex-direction:row;align-items:center;justify-content:space-between;}
}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.68);padding:64px 0 24px;font-size:14.5px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:16px;margin-bottom:14px;}
.footer-brand .brand__mark{background:rgba(255,255,255,.08);color:var(--primary);}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);}
.footer-col h4{color:var(--primary);font-size:14px;font-weight:700;margin-bottom:14px;letter-spacing:.04em;}
.footer-list li{margin-bottom:10px;color:rgba(255,255,255,.62);}
.footer-list a{color:rgba(255,255,255,.72);}
.footer-list a:hover{color:var(--primary);}
.footer-bottom{margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.5);}
.site-footer .grid-margin-x{margin-left:-12px;margin-right:-12px;}
.site-footer .grid-margin-x > .cell{padding-left:12px;padding-right:12px;}
.site-footer .grid-margin-y{margin-top:-24px;}
.site-footer .grid-margin-y > .cell{margin-top:24px;}

/* ---------- mobile tabs ---------- */
.mobile-tabs{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:flex;background:var(--surface);border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -4px 16px rgba(15,18,19,.06);
}
.mobile-tabs a{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:3px;height:58px;font-size:11px;color:var(--gray);position:relative;
}
.mobile-tabs a i{font-size:19px;}
.mobile-tabs a.is-active{color:var(--primary-dark);font-weight:700;}
.mobile-tabs a.is-active::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:26px;height:2px;border-radius:2px;background:var(--primary);}
@media (min-width:1024px){.mobile-tabs{display:none;} body{padding-bottom:0;}}

/* ---------- floating buy ---------- */
.float-buy{
  position:fixed;right:28px;bottom:28px;z-index:65;
  display:none;align-items:center;gap:8px;padding:14px 24px;border-radius:999px;
  background:var(--primary);color:#fff;font-weight:700;font-size:15px;box-shadow:var(--sh-lg);
  transition:all .2s ease-out;
}
.float-buy:hover{background:var(--primary-dark);color:#fff;transform:translateY(-3px);}
@media (min-width:1024px){.float-buy{display:inline-flex;}}

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

/* roulang page: category1 */
:root{
  --ink:#0F1213;
  --ink-2:#2B3134;
  --gray:#5C666A;
  --gray-lt:#8A9296;
  --line:#E6E2DA;
  --bg:#F7F5F1;
  --card:#FFFFFF;
  --primary:#00C2A8;
  --primary-dark:#009E8A;
  --primary-soft:#E3F7F3;
  --accent:#FF6A3D;
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:12px;
  --shadow-sm:0 1px 2px rgba(15,18,19,.06);
  --shadow-md:0 6px 18px rgba(15,18,19,.08);
  --shadow-lg:0 16px 40px rgba(15,18,19,.12);
  --container:1200px;
  --header-h:68px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-2);
  background:var(--bg);
  padding-bottom:0;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease-out;}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:.01em;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1440px){
  .container{max-width:1280px;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:#FFFDFA;
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-sm);
  transition:box-shadow .2s ease-out,height .2s ease-out;
}
.site-header__bar{
  height:var(--header-h);
  display:flex;
  align-items:center;
  gap:24px;
  transition:height .2s ease-out;
}
.site-header.is-scrolled{box-shadow:var(--shadow-md);}
.site-header.is-scrolled .site-header__bar{height:60px;}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:700;
  color:var(--ink);
  flex:0 0 auto;
}
.brand__mark{
  width:34px;
  height:34px;
  border-radius:10px;
  background:var(--ink);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:13px;
  font-weight:800;
  letter-spacing:.02em;
  flex:0 0 auto;
}
.brand__text{
  font-size:17px;
  font-weight:800;
  letter-spacing:.01em;
  white-space:nowrap;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:15px;
  font-weight:500;
  color:var(--ink-2);
  border-radius:8px;
  white-space:nowrap;
}
.nav-links a:hover{color:var(--primary-dark);background:var(--primary-soft);}
.nav-links a.is-active{color:var(--primary-dark);font-weight:700;}
.nav-links a.is-active::after{
  content:"";
  position:absolute;
  left:12px;
  right:12px;
  bottom:2px;
  height:3px;
  border-radius:999px;
  background:var(--primary);
}
.header-cta{flex:0 0 auto;}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border:0;
  border-radius:var(--radius-sm);
  padding:11px 22px;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:transform .18s ease-out,background-color .18s ease-out,box-shadow .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.btn--pill{border-radius:999px;}
.btn--primary{
  background:var(--primary);
  color:#fff;
  box-shadow:var(--shadow-sm);
}
.btn--primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-md);color:#fff;}
.btn--primary:active{transform:translateY(0);}
.btn--outline{
  background:transparent;
  color:var(--primary-dark);
  border:1.5px solid var(--primary);
}
.btn--outline:hover{background:var(--primary-soft);transform:translateY(-2px);}
.btn--ghost-light{
  background:transparent;
  color:#fff;
  border:1.5px solid rgba(255,255,255,.6);
}
.btn--ghost-light:hover{background:rgba(255,255,255,.12);border-color:#fff;transform:translateY(-2px);}
.btn--sm{padding:9px 16px;font-size:14px;}

.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border:1px solid var(--line);
  border-radius:10px;
  background:#fff;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  cursor:pointer;
  margin-left:8px;
}
.nav-toggle span{
  display:block;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--ink);
  transition:transform .2s ease-out,opacity .2s ease-out;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:#FFFDFA;
  padding:12px 0 20px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer ul{display:flex;flex-direction:column;}
.mobile-drawer a{
  display:block;
  padding:12px 4px;
  font-size:16px;
  border-bottom:1px solid var(--line);
  color:var(--ink-2);
}
.mobile-drawer a:hover{color:var(--primary-dark);}
.mobile-drawer .btn{margin-top:16px;width:100%;}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  color:#fff;
  background-image:url(/assets/images/backpic/back-1.png);
  background-size:cover;
  background-position:center;
  padding:72px 0 64px;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(135deg,rgba(15,18,19,.9),rgba(18,58,54,.8));
}
.page-hero > .container{position:relative;z-index:1;}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.68);
  margin-bottom:22px;
}
.breadcrumb a{color:rgba(255,255,255,.82);}
.breadcrumb a:hover{color:#fff;}
.breadcrumb .sep{opacity:.55;}
.breadcrumb .current{color:#fff;font-weight:600;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  background:rgba(0,194,168,.18);
  border:1px solid rgba(0,194,168,.5);
  color:#8FF0E1;
  font-size:13px;
  font-weight:600;
  letter-spacing:.02em;
  margin-bottom:18px;
}
.page-hero h1{
  color:#fff;
  font-size:clamp(28px,4vw,40px);
  line-height:1.25;
  letter-spacing:.01em;
  max-width:640px;
}
.page-hero__lead{
  margin-top:14px;
  font-size:17px;
  color:rgba(255,255,255,.86);
  max-width:560px;
}
.page-hero__actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:28px;
}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:48px;
  align-items:center;
}
.hero-visual{
  position:relative;
  justify-self:end;
  width:100%;
  max-width:340px;
}
.hero-visual__frame{
  position:relative;
  border-radius:20px;
  overflow:hidden;
  box-shadow:var(--shadow-lg);
  border:1px solid rgba(255,255,255,.18);
}
.hero-visual__frame img{
  width:100%;
  aspect-ratio:9/16;
  object-fit:cover;
}
.hero-visual__time{
  position:absolute;
  top:14px;
  left:14px;
  padding:4px 10px;
  border-radius:999px;
  background:rgba(15,18,19,.72);
  color:#fff;
  font-size:12px;
  font-variant-numeric:tabular-nums;
}
.hero-visual__play{
  position:absolute;
  right:14px;
  bottom:14px;
  width:46px;
  height:46px;
  border-radius:50%;
  background:rgba(255,255,255,.92);
  color:var(--ink);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:16px;
}
.hero-visual__caption{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  padding:52px 16px 18px;
  background:linear-gradient(to top,rgba(15,18,19,.86),rgba(15,18,19,0));
  color:#fff;
  font-size:14px;
  line-height:1.5;
}
.hero-stats{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:12px;
  margin-top:18px;
}
.hero-stats div{
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius-sm);
  padding:12px 14px;
}
.hero-stats b{
  display:block;
  font-size:20px;
  color:#fff;
  font-variant-numeric:tabular-nums;
}
.hero-stats span{
  font-size:12px;
  color:rgba(255,255,255,.72);
}

/* ---------- section base ---------- */
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section--plain{background:#FFFDFA;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{
  max-width:720px;
  margin-bottom:40px;
}
.section-head--center{
  margin-left:auto;
  margin-right:auto;
  text-align:center;
}
.section-kicker{
  display:inline-block;
  font-size:13px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--primary-dark);
  margin-bottom:12px;
}
.section-head h2{
  font-size:clamp(23px,2.6vw,28px);
  line-height:1.35;
}
.section-head p{
  margin-top:12px;
  color:var(--gray);
  font-size:16px;
}

/* ---------- filter bar ---------- */
.filter-wrap{
  background:#FFFDFA;
  border-bottom:1px solid var(--line);
  padding:16px 0;
  position:sticky;
  top:60px;
  z-index:40;
}
.filter-bar{
  display:flex;
  gap:10px;
  overflow-x:auto;
  padding-bottom:4px;
  scrollbar-width:none;
  -webkit-overflow-scrolling:touch;
}
.filter-bar::-webkit-scrollbar{display:none;}
.filter-chip{
  flex:0 0 auto;
  padding:9px 18px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--gray);
  font-size:14px;
  font-weight:600;
  white-space:nowrap;
  transition:all .18s ease-out;
}
.filter-chip:hover{border-color:var(--primary);color:var(--primary-dark);background:var(--primary-soft);}
.filter-chip.is-active{background:var(--ink);border-color:var(--ink);color:#fff;}

/* ---------- clip wall ---------- */
.clip-wall{margin-top:8px;}
.clip-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease-out,box-shadow .2s ease-out;
  margin-bottom:24px;
  height:calc(100% - 24px);
  display:flex;
  flex-direction:column;
}
.clip-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);}
.clip-card__media{
  position:relative;
  display:block;
  overflow:hidden;
  background:#000;
}
.clip-card__media img{
  width:100%;
  aspect-ratio:9/16;
  object-fit:cover;
  transition:transform .3s ease-out;
}
.clip-card:hover .clip-card__media img{transform:scale(1.04);}
.clip-card__duration{
  position:absolute;
  top:10px;
  left:10px;
  padding:3px 9px;
  border-radius:999px;
  background:rgba(15,18,19,.74);
  color:#fff;
  font-size:12px;
  font-variant-numeric:tabular-nums;
}
.clip-card__hot{
  position:absolute;
  top:10px;
  right:10px;
  padding:3px 9px;
  border-radius:999px;
  background:var(--accent);
  color:#fff;
  font-size:11px;
  font-weight:700;
}
.clip-card__play{
  position:absolute;
  left:50%;
  top:50%;
  transform:translate(-50%,-50%) scale(.82);
  width:52px;
  height:52px;
  border-radius:50%;
  border:2px solid #fff;
  background:rgba(15,18,19,.42);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:16px;
  opacity:0;
  transition:opacity .2s ease-out,transform .2s ease-out;
}
.clip-card:hover .clip-card__play{opacity:1;transform:translate(-50%,-50%) scale(1);}
.clip-card__body{
  padding:14px 16px 16px;
  display:flex;
  flex-direction:column;
  gap:10px;
  flex:1 1 auto;
}
.clip-card__title{
  font-size:16px;
  font-weight:700;
  line-height:1.5;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.clip-card__meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  margin-top:auto;
  font-size:12px;
  color:var(--gray-lt);
  font-variant-numeric:tabular-nums;
}
.clip-card__meta .stat{display:inline-flex;align-items:center;gap:4px;}
.badge{
  display:inline-flex;
  align-items:center;
  padding:3px 10px;
  border-radius:999px;
  background:var(--primary-soft);
  color:var(--primary-dark);
  font-size:12px;
  font-weight:700;
}
.badge--accent{background:var(--accent);color:#fff;}

/* ---------- stats strip ---------- */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
}
.stat-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:22px 20px;
  box-shadow:var(--shadow-sm);
}
.stat-item b{
  display:block;
  font-size:28px;
  font-weight:800;
  color:var(--ink);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.stat-item span{
  display:block;
  margin-top:6px;
  font-size:14px;
  color:var(--gray);
}

/* ---------- feature split ---------- */
.split{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:48px;
  align-items:center;
}
.split__media{
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-md);
  border:1px solid var(--line);
}
.split__media img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.split--reverse .split__media{order:2;}
.split h3{font-size:21px;margin-bottom:14px;}
.split p{color:var(--gray);}
.check-list{margin-top:18px;}
.check-list li{
  position:relative;
  padding-left:28px;
  margin-bottom:10px;
  color:var(--ink-2);
  font-size:15px;
}
.check-list li::before{
  content:"\f00c";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  position:absolute;
  left:0;
  top:2px;
  color:var(--primary);
  font-size:13px;
}

/* ---------- scene list ---------- */
.scene-list{
  max-width:860px;
  margin:0 auto;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
}
.scene-row{
  display:flex;
  align-items:center;
  gap:20px;
  padding:20px 24px;
  border-bottom:1px solid var(--line);
  transition:background-color .18s ease-out;
}
.scene-row:last-child{border-bottom:0;}
.scene-row:hover{background:var(--primary-soft);}
.scene-row__num{
  font-size:20px;
  font-weight:800;
  color:var(--primary);
  font-variant-numeric:tabular-nums;
  flex:0 0 42px;
}
.scene-row__main{flex:1 1 auto;min-width:0;}
.scene-row__main h4{font-size:17px;font-weight:700;margin-bottom:4px;}
.scene-row__main p{font-size:14px;color:var(--gray);margin:0;}
.scene-row__arrow{color:var(--gray-lt);transition:transform .18s ease-out,color .18s ease-out;}
.scene-row:hover .scene-row__arrow{transform:translateX(4px);color:var(--primary-dark);}

/* ---------- steps ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:22px;
}
.step{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:24px 20px;
  box-shadow:var(--shadow-sm);
  position:relative;
}
.step__no{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;
  height:34px;
  border-radius:10px;
  background:var(--ink);
  color:#fff;
  font-size:14px;
  font-weight:800;
  margin-bottom:14px;
}
.step h4{font-size:17px;margin-bottom:8px;}
.step p{font-size:14px;color:var(--gray);margin:0;}

/* ---------- faq ---------- */
.faq-list{
  max-width:860px;
  margin:0 auto;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:20px 24px;
  display:flex;
  align-items:center;
  gap:16px;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  transition:background-color .18s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:var(--primary-soft);}
.faq-item summary::after{
  content:"\2b";
  margin-left:auto;
  font-size:20px;
  font-weight:400;
  color:var(--primary-dark);
  line-height:1;
  transition:transform .18s ease-out;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item__body{
  padding:0 24px 22px;
  font-size:15px;
  line-height:1.8;
  color:var(--gray);
}

/* ---------- cta band ---------- */
.cta-band{
  background:linear-gradient(135deg,#0F1213,#123A36);
  color:#fff;
  padding:72px 0;
  text-align:center;
}
.cta-band h2{
  color:#fff;
  font-size:clamp(22px,2.6vw,28px);
}
.cta-band p{
  margin-top:12px;
  color:rgba(255,255,255,.78);
  max-width:620px;
  margin-left:auto;
  margin-right:auto;
}
.cta-band .actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  justify-content:center;
  margin-top:28px;
}

/* ---------- footer ---------- */
.site-footer{
  background:var(--ink);
  color:rgba(255,255,255,.72);
  padding:64px 0 28px;
  font-size:14px;
}
.site-footer .footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:16px;
  font-weight:700;
  color:#fff;
  margin-bottom:14px;
}
.footer-desc{
  color:rgba(255,255,255,.6);
  font-size:14px;
  line-height:1.8;
  max-width:300px;
}
.footer-col h4{
  color:var(--primary);
  font-size:15px;
  font-weight:700;
  margin-bottom:16px;
}
.footer-list li{margin-bottom:10px;}
.footer-list a{color:rgba(255,255,255,.72);}
.footer-list a:hover{color:var(--primary);}
.footer-list span{color:rgba(255,255,255,.6);}
.footer-bottom{
  margin-top:44px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  justify-content:space-between;
  font-size:13px;
  color:rgba(255,255,255,.5);
}

/* ---------- float buy ---------- */
.float-buy{
  position:fixed;
  right:24px;
  bottom:28px;
  z-index:70;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:14px 24px;
  border-radius:999px;
  background:var(--primary);
  color:#fff;
  font-size:15px;
  font-weight:700;
  box-shadow:var(--shadow-lg);
  transition:transform .18s ease-out,background-color .18s ease-out;
}
.float-buy:hover{background:var(--primary-dark);transform:translateY(-2px);color:#fff;}

/* ---------- mobile tab ---------- */
.mobile-tab{display:none;}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .nav-links,.header-cta{display:none;}
  .nav-toggle{display:flex;margin-left:auto;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-visual{justify-self:start;max-width:300px;}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .split{gap:32px;}
  .filter-wrap{top:60px;}
  .float-buy{display:none;}
  .mobile-tab{
    display:flex;
    position:fixed;
    left:0;
    right:0;
    bottom:0;
    z-index:80;
    background:#FFFDFA;
    border-top:1px solid var(--line);
    box-shadow:0 -6px 18px rgba(15,18,19,.08);
    padding-bottom:env(safe-area-inset-bottom,0px);
  }
  .mobile-tab__item{
    flex:1 1 0;
    min-width:0;
    padding:8px 2px 9px;
    display:flex;
    flex-direction:column;
    align-items:center;
    gap:3px;
    font-size:11px;
    color:var(--gray-lt);
    position:relative;
  }
  .mobile-tab__item i{font-size:20px;}
  .mobile-tab__item.is-active{color:var(--primary-dark);font-weight:700;}
  .mobile-tab__item.is-active::before{
    content:"";
    position:absolute;
    top:0;
    left:22%;
    right:22%;
    height:2px;
    border-radius:999px;
    background:var(--primary);
  }
  body{padding-bottom:80px;}
}
@media (max-width:768px){
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  .page-hero{padding:48px 0 52px;}
  .site-header__bar{height:60px;gap:12px;}
  .brand__text{font-size:16px;}
  .brand__mark{width:30px;height:30px;font-size:12px;}
  .split{grid-template-columns:1fr;}
  .split--reverse .split__media{order:0;}
  .stat-strip{gap:12px;}
  .stat-item{padding:18px 16px;}
  .stat-item b{font-size:23px;}
  .scene-row{padding:16px;gap:14px;}
  .scene-row__num{flex:0 0 32px;font-size:17px;}
  .clip-card__body{padding:12px;}
  .clip-card__title{font-size:14px;}
  .faq-item summary{padding:16px;font-size:16px;}
  .faq-item__body{padding:0 16px 18px;}
  .footer-desc{max-width:100%;}
  .site-footer{padding:48px 0 24px;}
}
@media (max-width:520px){
  .steps{grid-template-columns:1fr;}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));}
  .page-hero h1{font-size:26px;}
  .clip-card__meta .stat:nth-of-type(2){display:none;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
  .clip-card:hover,.btn:hover,.float-buy:hover{transform:none !important;}
}

/* roulang page: category2 */
/* ============ 设计变量 ============ */
:root{
  --ink:#0F1213;
  --ink-2:#2B3134;
  --gray:#5C666A;
  --line:#E6E2DA;
  --bg:#F7F5F1;
  --card:#FFFFFF;
  --brand:#00C2A8;
  --brand-dark:#009E8A;
  --brand-soft:#E3F7F3;
  --coral:#FF6A3D;
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:12px;
  --shadow-sm:0 1px 2px rgba(15,18,19,.06);
  --shadow-md:0 6px 18px rgba(15,18,19,.08);
  --shadow-lg:0 16px 40px rgba(15,18,19,.12);
  --header-h:68px;
  --maxw:1200px;
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:var(--header-h) 0 0;
  font-family:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .18s ease-out,background-color .18s ease-out,border-color .18s ease-out;}
a:hover{color:var(--brand-dark);}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.35;color:var(--ink);}
p{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

/* ============ 容器 ============ */
.container{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1440px){ .container{max-width:1280px;} }

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 22px;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  border-radius:var(--radius-sm);
  border:1.5px solid transparent;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out;
  white-space:nowrap;
}
.btn--primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-sm);}
.btn--primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-md);}
.btn--primary:active{transform:translateY(1px);}
.btn--ghost{border-color:var(--brand);color:var(--brand-dark);background:transparent;}
.btn--ghost:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-2px);}
.btn--light{border-color:rgba(255,255,255,.6);color:#fff;background:transparent;}
.btn--light:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px);}
.btn--pill{border-radius:999px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:80;
  background:#FFFDFA;
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-sm);
  transition:box-shadow .2s ease-out;
}
.site-header.is-scrolled{box-shadow:var(--shadow-md);}
.site-header__bar{
  display:flex;
  align-items:center;
  gap:24px;
  height:var(--header-h);
  transition:height .2s ease-out;
}
.site-header.is-scrolled .site-header__bar{height:60px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand__mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;height:32px;
  background:var(--ink);
  color:#fff;
  font-size:12.5px;
  font-weight:800;
  letter-spacing:.03em;
  clip-path:polygon(14% 0,100% 0,86% 100%,0 100%);
}
.brand__text{
  font-size:19px;
  font-weight:800;
  letter-spacing:.01em;
  color:var(--ink);
  line-height:1.1;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:22px;
  margin-left:auto;
}
.nav-links > a{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--ink-2);
  padding:6px 0;
}
.nav-links > a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .2s ease-out;
}
.nav-links > a:hover{color:var(--brand-dark);}
.nav-links > a:hover::after,
.nav-links > a.is-active::after{transform:scaleX(1);}
.nav-links > a.is-active{color:var(--brand-dark);font-weight:600;}
.nav-links__cta-mobile{display:none;}
.header-cta{flex:0 0 auto;}
.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:42px;height:42px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:#fff;
}
.nav-toggle span{display:block;width:18px;height:2px;margin:0 auto;background:var(--ink);border-radius:2px;transition:transform .2s ease-out,opacity .2s ease-out;}
.site-header.is-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.site-header.is-open .nav-toggle span:nth-child(2){opacity:0;}
.site-header.is-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ============ 分类首屏 ============ */
.cat-hero{
  position:relative;
  overflow:hidden;
  padding:56px 0 52px;
  color:#fff;
  background:#0F1213 url("/assets/images/backpic/back-1.png") center/cover no-repeat;
}
.cat-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(135deg,rgba(15,18,19,.94) 0%,rgba(18,58,54,.80) 100%);
}
.cat-hero .container{position:relative;z-index:1;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.62);margin-bottom:22px;}
.crumb a{color:rgba(255,255,255,.78);}
.crumb a:hover{color:#fff;}
.crumb__current{color:rgba(255,255,255,.95);}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 13px;
  margin-bottom:18px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.04em;
  color:#fff;
  background:rgba(0,194,168,.20);
  border:1px solid rgba(0,194,168,.55);
  border-radius:999px;
}
.cat-hero h1{
  font-size:clamp(26px,4vw,40px);
  font-weight:800;
  line-height:1.25;
  letter-spacing:.01em;
  color:#fff;
  max-width:860px;
}
.cat-hero__lead{
  margin-top:16px;
  font-size:clamp(15px,1.6vw,17px);
  color:rgba(255,255,255,.82);
  max-width:640px;
}
.hero-stats{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:16px;
  margin-top:34px;
  padding-top:26px;
  border-top:1px solid rgba(255,255,255,.16);
  max-width:760px;
}
.hero-stats li{display:flex;flex-direction:column;gap:2px;}
.hero-stats strong{
  font-size:clamp(20px,2.4vw,26px);
  font-weight:800;
  color:#fff;
  font-variant-numeric:tabular-nums;
  letter-spacing:-.01em;
}
.hero-stats span{font-size:13px;color:rgba(255,255,255,.66);}

/* ============ 通用板块 ============ */
.section{padding:80px 0;}
.section--tight{padding:56px 0;}
.section--alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{margin-bottom:36px;max-width:720px;}
.section-head__label{
  display:inline-block;
  margin-bottom:10px;
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--brand-dark);
  text-transform:uppercase;
}
.section-head h2{font-size:clamp(22px,2.6vw,28px);font-weight:700;letter-spacing:.01em;}
.section-head p{margin-top:12px;font-size:16px;color:var(--gray);}

/* ============ 筛选条 ============ */
.filter-bar{
  display:flex;
  gap:10px;
  overflow-x:auto;
  padding:4px 0 14px;
  margin-bottom:8px;
  scrollbar-width:none;
}
.filter-bar::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;
  padding:8px 16px;
  font-size:14px;
  font-weight:500;
  color:var(--ink-2);
  background:#fff;
  border:1px solid var(--line);
  border-radius:999px;
  transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out;
}
.chip:hover{color:var(--brand-dark);border-color:var(--brand);background:var(--brand-soft);transform:translateY(-1px);}
.chip.is-active{background:var(--ink);color:#fff;border-color:var(--ink);}

/* ============ 排行榜长列表 ============ */
.rank-list{
  max-width:940px;
  margin:0 auto;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-md);
  overflow:hidden;
}
.rank-row{
  display:grid;
  grid-template-columns:64px 180px minmax(0,1fr) 40px;
  gap:22px;
  align-items:center;
  padding:22px 26px;
  border-bottom:1px solid var(--line);
  transition:background-color .18s ease-out;
}
.rank-row:last-child{border-bottom:0;}
.rank-row:hover{background:var(--brand-soft);}
.rank-num{
  font-size:28px;
  font-weight:800;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.03em;
  line-height:1;
}
.rank-thumb{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:var(--radius-sm);
  background:var(--bg);
}
.rank-info{min-width:0;}
.rank-title{
  font-size:18px;
  font-weight:700;
  line-height:1.4;
  color:var(--ink);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.rank-why{margin-top:6px;font-size:15px;color:var(--gray);}
.rank-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:10px;}
.tag{
  display:inline-flex;
  align-items:center;
  padding:3px 10px;
  font-size:12.5px;
  font-weight:500;
  color:var(--brand-dark);
  background:var(--brand-soft);
  border-radius:999px;
  white-space:nowrap;
}
.tag--hot{background:var(--coral);color:#fff;}
.rank-hot{
  font-size:13px;
  color:var(--gray);
  font-variant-numeric:tabular-nums;
}
.rank-row__arrow{
  display:flex;
  align-items:center;
  justify-content:center;
  width:36px;height:36px;
  border-radius:999px;
  border:1px solid var(--line);
  color:var(--brand-dark);
  background:#fff;
  transition:transform .18s ease-out,background-color .18s ease-out,border-color .18s ease-out,color .18s ease-out;
}
.rank-row:hover .rank-row__arrow{transform:translateX(4px);background:var(--brand);color:#fff;border-color:var(--brand);}

/* ============ 选读摘要卡 ============ */
.summary-card{
  height:100%;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.summary-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);}
.summary-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.summary-card__body{padding:20px;}
.summary-card__body h3{font-size:19px;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.summary-card__body p{margin-top:10px;font-size:15px;color:var(--gray);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.summary-card__meta{display:flex;align-items:center;gap:10px;margin-top:16px;font-size:13px;color:var(--gray);}
.summary-card__link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:16px;
  font-size:14px;
  font-weight:600;
  color:var(--brand-dark);
}
.summary-card__link i{transition:transform .18s ease-out;}
.summary-card:hover .summary-card__link i{transform:translateX(4px);}

/* ============ 数据口径说明条 ============ */
.note-band{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
  padding:28px 30px;
  background:var(--brand-soft);
  border:1px solid rgba(0,194,168,.28);
  border-radius:var(--radius-lg);
}
.note-band__item h4{font-size:16px;font-weight:700;color:var(--ink);}
.note-band__item p{margin-top:8px;font-size:14.5px;color:var(--ink-2);}

/* ============ 口碑条 ============ */
.voice-strip{
  display:flex;
  gap:18px;
  overflow-x:auto;
  padding:6px 24px 22px;
  scroll-snap-type:x mandatory;
  scrollbar-width:none;
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 28px,#000 calc(100% - 28px),transparent 100%);
  mask-image:linear-gradient(90deg,transparent 0,#000 28px,#000 calc(100% - 28px),transparent 100%);
}
.voice-strip::-webkit-scrollbar{display:none;}
.voice-card{
  position:relative;
  flex:0 0 288px;
  scroll-snap-align:start;
  padding:20px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:16px;
  box-shadow:var(--shadow-sm);
}
.voice-card::after{
  content:"";
  position:absolute;
  left:26px;bottom:-8px;
  width:16px;height:16px;
  background:#fff;
  border-right:1px solid var(--line);
  border-bottom:1px solid var(--line);
  transform:rotate(45deg);
}
.voice-card__head{display:flex;align-items:center;gap:10px;}
.voice-avatar{
  display:flex;align-items:center;justify-content:center;
  width:38px;height:38px;
  border-radius:999px;
  background:var(--brand-soft);
  color:var(--brand-dark);
  font-size:14px;
  font-weight:700;
}
.voice-name{font-size:14px;color:var(--gray);}
.stars{display:flex;gap:2px;margin-top:12px;color:var(--coral);font-size:12.5px;}
.voice-card p{margin-top:10px;font-size:15px;color:var(--ink-2);}

/* ============ FAQ ============ */
.faq-card{
  max-width:880px;
  margin:0 auto;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  width:100%;
  padding:20px 26px;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  transition:background-color .18s ease-out;
}
.faq-q:hover{background:var(--brand-soft);}
.faq-q i{
  flex:0 0 auto;
  font-size:14px;
  color:var(--brand-dark);
  transition:transform .18s ease-out;
}
.faq-item.is-open .faq-q i{transform:rotate(45deg);}
.faq-a{
  display:none;
  padding:0 26px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--gray);
}
.faq-item.is-open .faq-a{display:block;}

/* ============ 底部 CTA 带 ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  padding:64px 0;
  color:#fff;
  background:linear-gradient(135deg,#0F1213 0%,#123A36 100%);
}
.cta-band__inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:26px;
}
.cta-band h2{
  font-size:clamp(22px,2.8vw,30px);
  font-weight:800;
  color:#fff;
  letter-spacing:.01em;
}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.72);max-width:560px;}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink);
  color:rgba(255,255,255,.72);
  padding:60px 0 26px;
  font-size:14px;
}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:#fff;margin-bottom:14px;}
.footer-brand .brand__mark{background:var(--brand);color:#06110F;}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:320px;}
.footer-col h4{font-size:15px;font-weight:700;color:var(--brand);margin-bottom:14px;}
.footer-list li{margin-bottom:10px;}
.footer-list a{color:rgba(255,255,255,.72);}
.footer-list a:hover{color:#fff;}
.footer-list li span{color:rgba(255,255,255,.6);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px;
  margin-top:42px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;
  color:rgba(255,255,255,.5);
}

/* ============ 悬浮跟买 & 移动吸底 ============ */
.float-buy{
  position:fixed;
  right:24px;bottom:24px;
  z-index:70;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:13px 22px;
  font-size:15px;
  font-weight:700;
  color:#fff;
  background:var(--brand);
  border-radius:999px;
  box-shadow:var(--shadow-lg);
  transition:transform .18s ease-out,background-color .18s ease-out;
}
.float-buy:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);}
.sticky-buy{
  display:none;
  position:fixed;
  left:16px;right:16px;
  bottom:calc(74px + env(safe-area-inset-bottom));
  z-index:69;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 20px;
  font-size:15px;
  font-weight:700;
  color:#fff;
  background:var(--brand);
  border-radius:999px;
  box-shadow:var(--shadow-lg);
}
.sticky-buy:hover{background:var(--brand-dark);color:#fff;}

/* ============ 移动底部 Tab ============ */
.mobile-tab{display:none;}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .nav-links{
    position:absolute;
    top:100%;left:0;right:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    margin:0;
    padding:8px 16px 18px;
    background:#FFFDFA;
    border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-lg);
  }
  .site-header.is-open .nav-links{display:flex;}
  .nav-links > a{padding:14px 4px;border-bottom:1px solid var(--line);font-size:16px;}
  .nav-links > a::after{display:none;}
  .nav-links > a.is-active{color:var(--brand-dark);}
  .nav-links__cta-mobile{
    display:flex;
    justify-content:center;
    margin-top:14px;
    padding:12px 18px;
    font-size:15px;
    font-weight:700;
    color:#fff;
    background:var(--brand);
    border-radius:999px;
  }
  .nav-links__cta-mobile:hover{background:var(--brand-dark);color:#fff;}
  .header-cta{display:none;}
  .nav-toggle{display:flex;margin-left:auto;}

  body{padding-bottom:150px;}
  .float-buy{display:none;}
  .sticky-buy{display:flex;}

  .mobile-tab{
    display:flex;
    position:fixed;
    left:0;right:0;bottom:0;
    z-index:72;
    background:#FFFDFA;
    border-top:1px solid var(--line);
    box-shadow:0 -4px 18px rgba(15,18,19,.06);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .mobile-tab a{
    position:relative;
    flex:1 1 0;
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:3px;
    padding:9px 2px 8px;
    font-size:10.5px;
    line-height:1.2;
    color:var(--gray);
    white-space:nowrap;
  }
  .mobile-tab a i{font-size:19px;}
  .mobile-tab a.is-active{color:var(--brand-dark);font-weight:600;}
  .mobile-tab a.is-active::before{
    content:"";
    position:absolute;
    top:0;left:50%;
    width:26px;height:2px;
    transform:translateX(-50%);
    background:var(--brand);
    border-radius:0 0 2px 2px;
  }

  .section{padding:64px 0;}
  .note-band{grid-template-columns:1fr;gap:18px;padding:24px;}
  .rank-row{grid-template-columns:48px 140px minmax(0,1fr) 32px;gap:16px;padding:18px;}
  .rank-num{font-size:24px;}
}

@media (max-width:767px){
  .container{padding:0 16px;}
  .cat-hero{padding:40px 0 38px;}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 18px;margin-top:26px;padding-top:20px;}
  .section{padding:52px 0;}
  .section-head{margin-bottom:26px;}

  .rank-list{border-radius:var(--radius-md);}
  .rank-row{
    grid-template-columns:40px minmax(0,1fr) 28px;
    grid-template-areas:
      "num info arrow"
      "thumb thumb thumb";
    row-gap:14px;
    padding:18px 16px;
  }
  .rank-num{grid-area:num;font-size:22px;}
  .rank-thumb{grid-area:thumb;aspect-ratio:16/8;border-radius:var(--radius-sm);}
  .rank-info{grid-area:info;}
  .rank-row__arrow{grid-area:arrow;width:30px;height:30px;font-size:13px;}
  .rank-title{font-size:16.5px;}

  .cta-band{padding:52px 0;}
  .cta-band__actions{width:100%;}
  .cta-band__actions .btn{flex:1 1 auto;}

  .footer-bottom{flex-direction:column;}
}

@media (max-width:479px){
  .brand__text{font-size:17px;}
  .mobile-tab a{font-size:10px;}
  .mobile-tab a i{font-size:18px;}
  .summary-card__body{padding:16px;}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
  .btn:hover,.summary-card:hover,.float-buy:hover,.chip:hover{transform:none!important;}
}

/* roulang page: category3 */
:root{
  --ink:#0F1213;
  --ink-2:#2B3134;
  --gray:#5C666A;
  --line:#E6E2DA;
  --bg:#F7F5F1;
  --card:#FFFFFF;
  --primary:#00C2A8;
  --primary-d:#009E8A;
  --primary-l:#E3F7F3;
  --accent:#FF6A3D;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --sh-sm:0 1px 2px rgba(15,18,19,.06);
  --sh-md:0 6px 18px rgba(15,18,19,.08);
  --sh-lg:0 16px 40px rgba(15,18,19,.12);
  --ease:150ms ease-out;
}
*,*::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","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease),box-shadow var(--ease),transform var(--ease);}
button,input,textarea,select{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{color:var(--ink);line-height:1.35;letter-spacing:.01em;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--primary);color:#fff;padding:10px 18px;border-radius:0 0 var(--r-sm) 0;z-index:999;}
.skip-link:focus{left:0;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1440px){.container{max-width:1280px;}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh-sm);
  transition:box-shadow var(--ease),background-color var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-md);}
.site-header__bar{
  display:flex;align-items:center;gap:24px;
  height:68px;
  transition:height var(--ease);
}
.site-header.is-scrolled .site-header__bar{height:60px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand__mark{
  width:32px;height:32px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--primary),var(--primary-d));
  color:#fff;font-size:14px;font-weight:800;letter-spacing:.02em;
  box-shadow:0 4px 10px rgba(0,194,168,.28);
}
.brand__text{font-size:17px;font-weight:800;color:var(--ink);letter-spacing:.02em;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;flex-wrap:wrap;}
.nav-links a{
  position:relative;
  font-size:15px;font-weight:500;color:var(--gray);
  padding:8px 12px;border-radius:8px;white-space:nowrap;
}
.nav-links a:hover{color:var(--primary-d);background:var(--primary-l);}
.nav-links a.is-active{color:var(--primary-d);font-weight:700;}
.nav-links a.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--primary);border-radius:2px;
}
.header-cta{flex:0 0 auto;}
.nav-toggle{
  display:none;width:44px;height:44px;margin-left:auto;
  border:1px solid var(--line);border-radius:12px;background:#fff;
  padding:0;cursor:pointer;position:relative;
}
.nav-toggle span{
  display:block;width:18px;height:2px;background:var(--ink-2);border-radius:2px;
  margin:4px auto;transition:transform var(--ease),opacity var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:13px 22px;border-radius:var(--r-sm);border:1.5px solid transparent;
  cursor:pointer;text-align:center;
}
.btn--pill{border-radius:999px;}
.btn--primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(0,194,168,.26);}
.btn--primary:hover{background:var(--primary-d);transform:translateY(-2px);box-shadow:0 10px 22px rgba(0,158,138,.3);}
.btn--primary:active{transform:translateY(-1px);}
.btn--outline{border-color:var(--primary);color:var(--primary-d);background:#fff;}
.btn--outline:hover{background:var(--primary-l);transform:translateY(-2px);}
.btn--ghost-light{border-color:rgba(255,255,255,.5);color:#fff;background:rgba(255,255,255,.06);}
.btn--ghost-light:hover{background:rgba(255,255,255,.16);border-color:#fff;transform:translateY(-2px);}
.btn--accent{background:var(--accent);color:#fff;}
.btn--accent:hover{background:#ef5a2d;transform:translateY(-2px);}

/* ---------- 标签 / 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:700;letter-spacing:.02em;
  padding:4px 12px;border-radius:999px;
  background:var(--primary-l);color:var(--primary-d);
}
.badge--hot{background:var(--accent);color:#fff;}
.tag{
  display:inline-flex;align-items:center;
  font-size:13px;color:var(--gray);
  padding:4px 12px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
}
.eyebrow{
  display:inline-block;
  font-size:13px;font-weight:700;letter-spacing:.14em;
  color:var(--primary-d);text-transform:uppercase;
  margin-bottom:12px;
}
.eyebrow--light{color:#7FE9D8;}

/* ---------- 板块通用 ---------- */
.section{padding:88px 0;}
.section--tight{padding:40px 0 88px;}
.section--alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:720px;margin-bottom:48px;}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head h2{font-size:clamp(22px,2.6vw,28px);font-weight:700;}
.section-sub{margin-top:14px;font-size:16px;color:var(--gray);}

/* ---------- 首屏 ---------- */
.page-hero{
  position:relative;color:#fff;overflow:hidden;
  background-image:linear-gradient(135deg,rgba(15,18,19,.93) 0%,rgba(18,58,54,.84) 60%,rgba(15,18,19,.9) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  padding:76px 0 68px;
}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,194,168,.34),transparent 66%);
  pointer-events:none;
}
.page-hero__grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center;
}
.page-hero h1{
  color:#fff;font-size:clamp(28px,4vw,40px);font-weight:800;line-height:1.25;letter-spacing:.01em;
}
.page-hero__lead{margin-top:16px;font-size:17px;line-height:1.8;color:rgba(255,255,255,.82);max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:32px;font-size:13px;color:rgba(255,255,255,.7);}
.breadcrumb a{color:rgba(255,255,255,.82);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb span[aria-current]{color:#fff;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:180px;}
.page-hero__media{margin:0;position:relative;}
.page-hero__media img{
  width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-lg);
  box-shadow:var(--sh-lg);border:1px solid rgba(255,255,255,.14);
}
.page-hero__media figcaption{margin-top:12px;font-size:13px;color:rgba(255,255,255,.66);text-align:center;}

/* ---------- 对照卡 ---------- */
.compare-grid .cell{margin-bottom:8px;}
.compare-card{
  height:100%;display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-md);overflow:hidden;
  transition:transform var(--ease),box-shadow var(--ease);
}
.compare-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);}
.compare-card__media img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.compare-card__body{padding:26px 26px 28px;display:flex;flex-direction:column;gap:14px;flex:1;}
.compare-card h3{font-size:20px;font-weight:700;}
.compare-card p{font-size:15.5px;color:var(--gray);}
.tick-list{display:flex;flex-direction:column;gap:10px;margin-top:2px;}
.tick-list li{
  position:relative;padding-left:26px;font-size:15px;color:var(--ink-2);line-height:1.7;
}
.tick-list li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:3px;font-size:12px;color:var(--primary);
}
.compare-card .btn{align-self:flex-start;margin-top:auto;}

/* ---------- 结论卡 ---------- */
.conclusion{
  display:grid;grid-template-columns:56px 1fr;gap:22px;
  background:var(--primary-l);border:1px solid #C9EFE8;border-left:4px solid var(--primary);
  border-radius:var(--r-lg);padding:30px 32px;box-shadow:var(--sh-sm);
}
.conclusion__icon{
  width:56px;height:56px;border-radius:16px;background:#fff;color:var(--primary-d);
  display:flex;align-items:center;justify-content:center;font-size:22px;box-shadow:var(--sh-sm);
}
.conclusion h2{font-size:22px;font-weight:700;}
.conclusion p{margin-top:12px;font-size:15.5px;color:var(--ink-2);}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;}

/* ---------- 数据速览 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.stat-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px 22px;box-shadow:var(--sh-sm);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.stat-card:hover{transform:translateY(-3px);box-shadow:var(--sh-md);border-color:#CFEAE4;}
.stat-card__num{
  font-size:30px;font-weight:800;color:var(--primary-d);
  font-variant-numeric:tabular-nums;letter-spacing:.01em;line-height:1.2;
}
.stat-card__num span{font-size:15px;font-weight:700;margin-left:2px;color:var(--gray);}
.stat-card__label{margin-top:8px;font-size:15px;font-weight:600;color:var(--ink);}
.stat-card__desc{margin-top:6px;font-size:13.5px;color:var(--gray);line-height:1.7;}

/* ---------- 编号清单 ---------- */
.check-list{max-width:720px;margin:0 auto;display:flex;flex-direction:column;gap:6px;}
.check-item{
  display:grid;grid-template-columns:60px 1fr 24px;gap:18px;align-items:center;
  padding:22px 20px;border-radius:var(--r-md);border-bottom:1px solid var(--line);
  transition:background-color var(--ease),transform var(--ease);
}
.check-item:last-child{border-bottom:0;}
.check-item:hover{background:var(--primary-l);transform:translateX(4px);}
.check-item__num{
  font-size:28px;font-weight:800;color:var(--primary);line-height:1;
  font-variant-numeric:tabular-nums;
}
.check-item h3{font-size:17.5px;font-weight:700;}
.check-item p{margin-top:6px;font-size:14.5px;color:var(--gray);line-height:1.75;}
.check-item__arrow{color:var(--primary-d);font-size:15px;transition:transform var(--ease);}
.check-item:hover .check-item__arrow{transform:translateX(4px);}

/* ---------- FAQ ---------- */
.faq-list{
  max-width:860px;margin:0 auto;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-sm);overflow:hidden;
}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
  padding:22px 26px;font-size:17px;font-weight:600;color:var(--ink);line-height:1.6;
  transition:background-color var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex:0 0 auto;font-size:22px;font-weight:400;line-height:1.1;
  color:var(--primary);transition:transform var(--ease);
}
.faq-item summary:hover{background:var(--primary-l);}
.faq-item[open] summary{background:var(--primary-l);}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-body{padding:0 26px 22px;font-size:15px;color:var(--gray);line-height:1.85;}

/* ---------- 底部 CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;color:#fff;
  background-image:linear-gradient(135deg,#0F1213 0%,#123A36 100%);
  padding:72px 0;
}
.cta-band::before{
  content:"";position:absolute;left:-80px;bottom:-140px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,194,168,.3),transparent 68%);
}
.cta-band__inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-band h2{color:#fff;font-size:clamp(22px,2.8vw,28px);font-weight:800;}
.cta-band p{margin-top:12px;color:rgba(255,255,255,.76);font-size:16px;max-width:620px;}
.cta-band__actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:64px 0 24px;}
.site-footer .grid-margin-y > .cell{margin-top:0;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:800;letter-spacing:.02em;margin-bottom:14px;}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:300px;}
.footer-col h4{color:var(--primary);font-size:15px;font-weight:700;margin-bottom:16px;}
.footer-list{display:flex;flex-direction:column;gap:10px;}
.footer-list li{font-size:14px;color:rgba(255,255,255,.62);}
.footer-list a{color:rgba(255,255,255,.72);}
.footer-list a:hover{color:var(--primary);}
.footer-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 悬浮跟买 ---------- */
.float-buy{
  position:fixed;right:28px;bottom:28px;z-index:110;
  display:inline-flex;align-items:center;gap:8px;
  background:var(--primary);color:#fff;font-size:15px;font-weight:700;
  padding:14px 22px;border-radius:999px;
  box-shadow:var(--sh-lg);
}
.float-buy:hover{background:var(--primary-d);transform:translateY(-2px);}

/* ---------- 移动底部 Tab ---------- */
.mobile-tab{
  position:fixed;left:0;right:0;bottom:0;z-index:130;display:none;
  background:#fff;border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -4px 18px rgba(15,18,19,.07);
}
.mobile-tab__inner{display:flex;height:62px;}
.mobile-tab a{
  position:relative;flex:1;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:11px;color:var(--gray);
}
.mobile-tab a i{font-size:19px;}
.mobile-tab a.is-active{color:var(--primary-d);font-weight:700;}
.mobile-tab a.is-active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:26px;height:2px;border-radius:2px;background:var(--primary);
}

/* ---------- 滚动出现 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s ease-out,transform .5s ease-out;}
.reveal.is-visible{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-links{
    position:fixed;left:0;right:0;top:64px;bottom:0;
    display:none;flex-direction:column;align-items:stretch;gap:2px;
    background:#fff;padding:18px 20px 32px;margin:0;
    overflow-y:auto;border-top:1px solid var(--line);
  }
  .nav-links.is-open{display:flex;}
  .nav-links a{padding:14px 12px;font-size:16px;border-radius:10px;}
  .nav-links a.is-active::after{display:none;}
  .nav-links a.is-active{background:var(--primary-l);}
  .nav-toggle{display:block;}
  .header-cta{display:none;}
  .site-header__bar{height:64px;gap:12px;}
  .site-header.is-scrolled .site-header__bar{height:60px;}
  .page-hero__grid{grid-template-columns:1fr;gap:34px;}
  .page-hero{padding:56px 0 52px;}
  .section{padding:64px 0;}
  .section--tight{padding:28px 0 64px;}
  .mobile-tab{display:block;}
  .float-buy{display:none;}
  body{padding-bottom:84px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:52px 0;}
  .section-head{margin-bottom:32px;}
  .stats{grid-template-columns:repeat(2,1fr);gap:14px;}
  .conclusion{grid-template-columns:1fr;padding:24px 20px;}
  .conclusion__icon{width:46px;height:46px;border-radius:14px;font-size:19px;}
  .compare-card__body{padding:20px;}
  .check-item{grid-template-columns:44px 1fr;gap:12px;padding:18px 14px;}
  .check-item__arrow{display:none;}
  .check-item__num{font-size:24px;}
  .faq-item summary{padding:18px;font-size:16px;}
  .faq-body{padding:0 18px 18px;}
  .cta-band{padding:54px 0;}
  .footer-bottom{flex-direction:column;gap:6px;}
}
@media (max-width:519px){
  .hero-actions .btn{width:100%;}
  .stats{grid-template-columns:1fr;}
  .brand__text{font-size:16px;}
  .brand__mark{width:28px;height:28px;font-size:12.5px;}
  .cta-band__actions .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category4 */
:root{
  --ink:#0F1213;
  --ink-2:#2B3134;
  --grey:#5C666A;
  --line:#E6E2DA;
  --bg:#F7F5F1;
  --card:#FFFFFF;
  --primary:#00C2A8;
  --primary-deep:#009E8A;
  --primary-soft:#E3F7F3;
  --coral:#FF6A3D;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-sm:0 1px 2px rgba(15,18,19,.06);
  --sh-md:0 6px 18px rgba(15,18,19,.08);
  --sh-lg:0 16px 40px rgba(15,18,19,.12);
  --header-h:68px;
  --font-cn:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,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:1.85;
  color:var(--ink);
  background:var(--bg);
  padding-bottom:84px;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none;transition:color .2s ease-out,opacity .2s ease-out}
a:hover{color:var(--primary-deep)}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1280px}}
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section--dark{background:linear-gradient(135deg,#0F1213 0%,#123A36 100%);color:#fff}
.section__head{max-width:720px;margin-bottom:40px}
.section__eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;font-weight:600;color:var(--primary-deep);
  background:var(--primary-soft);border-radius:var(--r-pill);padding:6px 14px;margin-bottom:16px;
}
.section--dark .section__eyebrow{background:rgba(0,194,168,.16);color:#7FE7D8}
.section__title{font-size:clamp(22px,3vw,28px);font-weight:700;line-height:1.35;letter-spacing:.02em}
.section__desc{margin-top:14px;font-size:16px;color:var(--grey)}
.section--dark .section__desc{color:rgba(255,255,255,.72)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#FFFDFA;
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh-sm);
  transition:box-shadow .22s ease-out;
}
.site-header.is-scrolled{box-shadow:var(--sh-md)}
.site-header__bar{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  height:var(--header-h);
  transition:height .22s ease-out;
}
.site-header.is-scrolled .site-header__bar{height:60px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand__mark{
  width:30px;height:30px;border-radius:9px;
  background:var(--ink);color:#7FE7D8;
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:800;letter-spacing:.04em;
}
.brand:hover .brand__mark{background:var(--primary-deep);color:#fff}
.brand__text{
  font-size:19px;font-weight:800;letter-spacing:.01em;color:var(--ink);
  line-height:1;white-space:nowrap;
}
.nav-links{display:flex;align-items:center;gap:4px;flex:1;justify-content:center}
.nav-links a{
  position:relative;
  font-size:15px;font-weight:500;color:var(--ink-2);
  padding:9px 12px;border-radius:10px;
  transition:background .2s ease-out,color .2s ease-out;
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease-out;
}
.nav-links a:hover{background:var(--primary-soft);color:var(--primary-deep)}
.nav-links a:hover::after,.nav-links a.is-active::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--primary-deep);font-weight:600}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:13px 22px;border-radius:var(--r-sm);
  border:1.5px solid transparent;
  transition:transform .18s ease-out,background .18s ease-out,color .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.btn--pill{border-radius:var(--r-pill)}
.btn--primary{background:var(--primary);color:#fff;box-shadow:0 6px 18px rgba(0,194,168,.28)}
.btn--primary:hover{background:var(--primary-deep);color:#fff;transform:translateY(-2px);box-shadow:0 10px 24px rgba(0,158,138,.32)}
.btn--primary:active{transform:translateY(1px)}
.btn--ghost{background:transparent;color:var(--primary-deep);border-color:var(--primary)}
.btn--ghost:hover{background:var(--primary-soft);transform:translateY(-2px)}
.btn--ghost:active{transform:translateY(1px)}
.btn--onDark{background:transparent;color:#fff;border-color:var(--primary)}
.btn--onDark:hover{background:rgba(0,194,168,.18);color:#fff;transform:translateY(-2px)}
.btn--light{background:#fff;color:var(--ink);border-color:var(--line)}
.btn--light:hover{background:var(--primary-soft);color:var(--primary-deep);transform:translateY(-2px)}
.header-cta{padding:11px 20px;font-size:14px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:#fff;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .2s ease-out,opacity .2s ease-out}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- page head ---------- */
.page-head{
  position:relative;
  padding:56px 0 72px;
  background:#FFFDFA;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-head::after{
  content:"";position:absolute;right:-120px;top:-80px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,194,168,.16),rgba(0,194,168,0) 68%);
}
.breadcrumb{
  position:relative;z-index:2;
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--grey);margin-bottom:22px;
}
.breadcrumb a{color:var(--grey)}
.breadcrumb a:hover{color:var(--primary-deep)}
.breadcrumb span.sep{opacity:.5}
.breadcrumb .current{color:var(--ink-2);font-weight:600}
.page-head__grid{position:relative;z-index:2;display:grid;grid-template-columns:1fr 320px;gap:48px;align-items:center}
.page-head h1{
  font-size:clamp(28px,4vw,40px);font-weight:800;line-height:1.25;letter-spacing:.01em;margin:14px 0 16px;
}
.page-head__lead{font-size:17px;color:var(--ink-2);max-width:620px}
.page-head__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.page-head__figure{
  border-radius:20px;overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--sh-lg);background:#fff;
}
.page-head__figure img{width:100%;aspect-ratio:3/4;object-fit:cover}

/* ---------- banner ---------- */
.banner{
  position:relative;color:#fff;
  background-image:linear-gradient(120deg,rgba(15,18,19,.86),rgba(18,58,54,.72)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  padding:72px 0;
}
.banner__inner{display:grid;grid-template-columns:1.3fr 1fr;gap:40px;align-items:end}
.banner h2{font-size:clamp(21px,2.6vw,26px);font-weight:700;line-height:1.4;margin-bottom:12px}
.banner p{color:rgba(255,255,255,.78);max-width:560px;font-size:15.5px}
.banner__stats{display:flex;gap:36px;flex-wrap:wrap;justify-content:flex-end}
.stat{min-width:96px}
.stat__num{font-size:32px;font-weight:800;line-height:1.1;color:#7FE7D8;font-variant-numeric:tabular-nums}
.stat__label{font-size:13px;color:rgba(255,255,255,.7);margin-top:6px}

/* ---------- chips ---------- */
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chips a{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 16px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);
  font-size:14px;color:var(--ink-2);box-shadow:var(--sh-sm);
  transition:transform .18s ease-out,background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.chips a:hover{background:var(--primary-soft);border-color:var(--primary);color:var(--primary-deep);transform:translateY(-2px)}
.chips a i{color:var(--primary);font-size:13px}

/* ---------- timeline ---------- */
.timeline{position:relative;margin-top:48px}
.timeline::before{
  content:"";position:absolute;left:19px;top:12px;bottom:12px;width:2px;
  background:linear-gradient(180deg,var(--primary) 0%,rgba(0,194,168,.28) 100%);
}
.tl-item{position:relative;padding-left:74px;margin-bottom:34px}
.tl-item:last-child{margin-bottom:0}
.tl-node{
  position:absolute;left:0;top:6px;width:40px;height:40px;border-radius:50%;
  background:#fff;border:2px solid var(--primary);color:var(--primary-deep);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;box-shadow:var(--sh-sm);z-index:2;
}
.tl-item:hover .tl-node{background:var(--primary);color:#fff}
.tl-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-md);overflow:hidden;
  display:grid;grid-template-columns:300px 1fr;
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.tl-card:hover{transform:translateY(-2px);box-shadow:var(--sh-lg)}
.tl-card__media{position:relative;min-height:210px}
.tl-card__media img{width:100%;height:100%;object-fit:cover}
.tl-card__badge{
  position:absolute;left:14px;top:14px;
  background:var(--coral);color:#fff;font-size:12px;font-weight:600;
  padding:5px 12px;border-radius:var(--r-pill);
}
.tl-card__body{padding:26px 28px}
.tl-card__step{font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--primary-deep)}
.tl-card__body h3{font-size:20px;font-weight:600;margin:8px 0 10px;line-height:1.4}
.tl-card__body p{font-size:15.5px;color:var(--grey)}
.tl-points{margin-top:16px;display:grid;gap:8px}
.tl-points li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-2);line-height:1.7}
.tl-points i{color:var(--primary);margin-top:6px;font-size:12px;flex-shrink:0}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.tl-item--offset{padding-right:56px}

/* ---------- tags ---------- */
.tag{
  display:inline-flex;align-items:center;
  font-size:12.5px;font-weight:600;color:var(--primary-deep);
  background:var(--primary-soft);border-radius:var(--r-pill);padding:5px 12px;
}
.tag--hot{background:var(--coral);color:#fff}

/* ---------- gallery grid ---------- */
.gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.g-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-sm);
  transition:transform .2s ease-out,box-shadow .2s ease-out;
  display:flex;flex-direction:column;
}
.g-card:hover{transform:translateY(-2px);box-shadow:var(--sh-lg)}
.g-card__media{position:relative;overflow:hidden}
.g-card__media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease-out}
.g-card:hover .g-card__media img{transform:scale(1.04)}
.g-card__body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.g-card__body h3{font-size:17px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.g-card__body p{font-size:14px;color:var(--grey);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.g-card__meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;font-size:13px;color:var(--grey)}

/* ---------- notes on dark ---------- */
.note-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:36px}
.note{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-md);padding:24px 22px;
  transition:background .2s ease-out,transform .2s ease-out;
}
.note:hover{background:rgba(255,255,255,.1);transform:translateY(-2px)}
.note i{font-size:20px;color:#7FE7D8}
.note h3{font-size:17px;font-weight:600;margin:14px 0 10px}
.note p{font-size:14.5px;color:rgba(255,255,255,.72)}

/* ---------- FAQ ---------- */
.faq-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-md);overflow:hidden;
}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  text-align:left;padding:22px 26px;font-size:17px;font-weight:600;color:var(--ink);
  transition:background .2s ease-out,color .2s ease-out;
}
.faq-q:hover{background:var(--primary-soft);color:var(--primary-deep)}
.faq-icon{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;
  border:1.5px solid var(--primary);color:var(--primary-deep);
  display:flex;align-items:center;justify-content:center;font-size:15px;line-height:1;
  transition:transform .18s ease-out,background .18s ease-out,color .18s ease-out;
}
.faq-item.is-open .faq-icon{transform:rotate(135deg);background:var(--primary);color:#fff;border-color:var(--primary)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease-out}
.faq-a p{padding:0 26px 24px;font-size:15px;line-height:1.85;color:var(--grey)}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(135deg,#0F1213 0%,#123A36 100%);
  color:#fff;padding:72px 0;
}
.cta-band__inner{display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(22px,3vw,30px);font-weight:800;line-height:1.3;margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.74);max-width:560px;font-size:15.5px}
.cta-band__actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.78);padding:64px 0 28px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:800;margin-bottom:16px}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);max-width:320px}
.footer-col h4{font-size:15px;font-weight:600;color:var(--primary);margin-bottom:16px}
.footer-list li{font-size:14px;margin-bottom:11px;color:rgba(255,255,255,.68);line-height:1.7}
.footer-list a{color:rgba(255,255,255,.68)}
.footer-list a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- floating buy ---------- */
.float-buy{
  position:fixed;right:28px;bottom:28px;z-index:70;
  display:inline-flex;align-items:center;gap:8px;
  background:var(--primary);color:#fff;font-weight:600;font-size:15px;
  padding:14px 24px;border-radius:var(--r-pill);box-shadow:var(--sh-lg);
  transition:transform .2s ease-out,background .2s ease-out;
}
.float-buy:hover{background:var(--primary-deep);color:#fff;transform:translateY(-2px)}

/* ---------- mobile tab ---------- */
.mobile-tab{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:75;
  background:#FFFDFA;border-top:1px solid var(--line);
  box-shadow:0 -6px 18px rgba(15,18,19,.07);
  padding:6px 0 calc(6px + env(safe-area-inset-bottom));
}
.mobile-tab ul{display:flex;align-items:stretch}
.mobile-tab li{flex:1}
.mobile-tab a{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  height:56px;font-size:11px;color:var(--grey);
}
.mobile-tab a i{font-size:22px}
.mobile-tab a.is-active{color:var(--primary-deep);font-weight:600}
.mobile-tab a.is-active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:26px;height:2px;border-radius:2px;background:var(--primary);
}
.mobile-buy{
  display:none;position:fixed;left:16px;right:16px;bottom:80px;z-index:74;
  background:var(--primary);color:#fff;font-weight:600;font-size:15px;
  padding:13px 0;border-radius:var(--r-pill);text-align:center;
  box-shadow:var(--sh-lg);
}
.mobile-buy:hover{color:#fff;background:var(--primary-deep)}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .nav-links{
    position:fixed;left:0;right:0;top:var(--header-h);
    flex-direction:column;align-items:stretch;gap:2px;
    background:#FFFDFA;border-bottom:1px solid var(--line);
    padding:14px 20px 22px;
    box-shadow:var(--sh-lg);
    transform:translateY(-12px);opacity:0;pointer-events:none;
    transition:transform .22s ease-out,opacity .22s ease-out;
    max-height:calc(100vh - var(--header-h));overflow:auto;
  }
  .nav-links.is-open{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav-links a{padding:14px 12px;font-size:16px}
  .nav-links a::after{display:none}
  .nav-toggle{display:flex}
  .header-cta{display:none}
  .section{padding:64px 0}
  .section--tight{padding:52px 0}
  .page-head{padding:36px 0 52px}
  .page-head__grid{grid-template-columns:1fr;gap:32px}
  .page-head__figure img{aspect-ratio:16/9}
  .banner__inner{grid-template-columns:1fr;gap:28px}
  .banner__stats{justify-content:flex-start}
  .gallery-grid{grid-template-columns:repeat(2,1fr)}
  .note-grid{grid-template-columns:1fr}
  .tl-card{grid-template-columns:240px 1fr}
  .tl-item--offset{padding-right:0}
  .mobile-tab{display:block}
  .mobile-buy{display:block}
  .float-buy{display:none}
  body{padding-bottom:100px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:52px 0}
  .page-head h1{font-size:28px}
  .gallery-grid{grid-template-columns:1fr}
  .tl-item{padding-left:56px;margin-bottom:26px}
  .timeline::before{left:15px}
  .tl-node{width:32px;height:32px;font-size:13px;top:8px}
  .tl-card{grid-template-columns:1fr}
  .tl-card__media{min-height:180px}
  .tl-card__media img{aspect-ratio:16/9}
  .tl-card__body{padding:20px 18px}
  .faq-q{padding:18px 18px;font-size:16px}
  .faq-a p{padding:0 18px 20px}
  .banner{padding:56px 0}
  .stat__num{font-size:26px}
  .cta-band{padding:56px 0}
}
@media (max-width:520px){
  .brand__text{font-size:17px}
  .page-head__actions .btn{width:100%}
  .cta-band__actions{width:100%}
  .cta-band__actions .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .g-card:hover,.tl-card:hover,.note:hover,.btn:hover{transform:none}
}

/* roulang page: category5 */
:root{
  --ink:#0F1213;
  --ink-2:#2B3134;
  --gray:#5C666A;
  --line:#E6E2DA;
  --bg:#F7F5F1;
  --card:#FFFFFF;
  --primary:#00C2A8;
  --primary-dark:#009E8A;
  --primary-soft:#E3F7F3;
  --coral:#FF6A3D;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --sh-sm:0 1px 2px rgba(15,18,19,.06);
  --sh-md:0 6px 18px rgba(15,18,19,.08);
  --sh-lg:0 16px 40px rgba(15,18,19,.12);
  --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;
}
*,*::before,*::after{box-sizing:border-box;}
html{font-size:100%;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Noto Sans CJK SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  padding-bottom:0;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{list-style:none;padding:0;}
a{color:inherit;text-decoration:none;transition:color .18s ease-out;}
a:hover{color:var(--primary-dark);}
img{max-width:100%;display:block;height:auto;}
button,input,textarea,select{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
::selection{background:var(--primary-soft);color:var(--ink);}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
@media (min-width:1440px){
  .container{max-width:1280px;}
}

/* ============ 头部导航 ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:900;
  background:#FFFDFB;
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh-sm);
  transition:height .2s ease-out,box-shadow .2s ease-out;
}
.site-header__bar{
  display:flex;
  align-items:center;
  gap:var(--sp-5);
  height:68px;
  transition:height .2s ease-out;
}
.site-header.is-scrolled{box-shadow:var(--sh-md);}
.site-header.is-scrolled .site-header__bar{height:60px;}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand__mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;height:34px;
  border-radius:10px;
  background:var(--primary);
  color:#fff;
  font-weight:800;
  font-size:15px;
  letter-spacing:.04em;
  flex-shrink:0;
}
.brand__text{
  font-size:20px;
  font-weight:800;
  letter-spacing:.01em;
  color:var(--ink);
  line-height:1;
  white-space:nowrap;
}
.nav-links{
  display:none;
  align-items:center;
  gap:var(--sp-5);
  margin-left:auto;
}
.nav-links a{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--ink-2);
  padding:6px 2px;
  white-space:nowrap;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:2px;right:2px;bottom:-2px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .18s ease-out;
}
.nav-links a:hover{color:var(--primary-dark);}
.nav-links a:hover::after,
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--primary-dark);font-weight:600;}
.header-cta{display:none;}
.nav-toggle{
  margin-left:auto;
  width:42px;height:42px;
  display:flex;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  gap:5px;
  border-radius:var(--r-sm);
  border:1px solid var(--line);
  background:#fff;
  transition:border-color .18s ease-out,background .18s ease-out;
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--ink);
  transition:transform .2s ease-out,opacity .2s ease-out;
}
.nav-toggle:hover{border-color:var(--primary);background:var(--primary-soft);}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.mobile-drawer{
  position:fixed;
  top:68px;left:0;right:0;bottom:0;
  z-index:880;
  background:#FFFDFB;
  padding:var(--sp-5) 0 calc(var(--sp-8) + 80px);
  overflow-y:auto;
  transform:translateY(-8px);
  opacity:0;
  visibility:hidden;
  transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s;
}
.mobile-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.mobile-drawer__list{display:flex;flex-direction:column;}
.mobile-drawer__list a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:16px 20px;
  border-bottom:1px solid var(--line);
  font-size:16px;
  font-weight:500;
  color:var(--ink-2);
  background:#fff;
  border-radius:var(--r-sm);
  margin-bottom:10px;
  border:1px solid var(--line);
}
.mobile-drawer__list a.is-active{color:var(--primary-dark);border-color:var(--primary);background:var(--primary-soft);font-weight:600;}
.mobile-drawer__list a i{color:var(--gray);font-size:13px;transition:transform .18s ease-out;}
.mobile-drawer__list a:hover i{transform:translateX(4px);color:var(--primary-dark);}
.mobile-drawer .btn{width:100%;margin-top:var(--sp-4);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 22px;
  border-radius:var(--r-sm);
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  border:1.5px solid transparent;
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
  will-change:transform;
}
.btn:active{transform:translateY(1px);}
.btn--primary{background:var(--primary);color:#fff;box-shadow:var(--sh-sm);}
.btn--primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-md);}
.btn--outline{border-color:var(--primary);color:var(--primary-dark);background:transparent;}
.btn--outline:hover{background:var(--primary-soft);color:var(--primary-dark);transform:translateY(-2px);}
.btn--ghost-light{border-color:rgba(255,255,255,.55);color:#fff;background:transparent;}
.btn--ghost-light:hover{border-color:var(--primary);background:rgba(0,194,168,.14);color:#fff;transform:translateY(-2px);}
.btn--pill{border-radius:999px;}
.btn--block{width:100%;}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:999px;
  font-size:13px;
  font-weight:600;
  line-height:1.6;
  background:var(--primary-soft);
  color:var(--primary-dark);
  white-space:nowrap;
}
.badge--coral{background:var(--coral);color:#fff;}
.badge--ghost{background:#fff;border:1px solid var(--line);color:var(--gray);font-weight:500;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.14em;
  color:var(--primary-dark);
  text-transform:uppercase;
  margin-bottom:var(--sp-4);
}
.eyebrow::before{
  content:"";
  display:inline-block;
  width:22px;height:2px;
  border-radius:2px;
  background:var(--primary);
}

/* ============ 内页 Hero ============ */
.page-hero{
  position:relative;
  margin-top:68px;
  padding:var(--sp-8) 0 var(--sp-7);
  background-color:var(--ink);
  background-image:linear-gradient(135deg,rgba(15,18,19,.9),rgba(18,58,54,.82)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  color:#fff;
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-120px;top:-120px;
  width:340px;height:340px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(0,194,168,.35),transparent 68%);
  pointer-events:none;
}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.62);
  margin-bottom:var(--sp-5);
}
.breadcrumb a{color:rgba(255,255,255,.72);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb span[aria-current]{color:#fff;font-weight:500;}
.page-hero h1{
  font-size:clamp(28px,4vw,40px);
  font-weight:800;
  line-height:1.25;
  letter-spacing:.02em;
  color:#fff;
  max-width:18em;
}
.page-hero .lede{
  margin-top:var(--sp-4);
  font-size:17px;
  color:rgba(255,255,255,.82);
  max-width:36em;
}
.hero-pills{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:var(--sp-5);
}
.hero-pills span{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:7px 14px;
  border-radius:999px;
  font-size:13.5px;
  color:#fff;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.2);
  backdrop-filter:blur(2px);
}
.hero-pills i{color:var(--primary);}

/* ============ 板块通用 ============ */
.section{padding:var(--sp-8) 0;}
.section--tight{padding:var(--sp-7) 0;}
.section--white{background:#fff;}
.section-head{
  max-width:720px;
  margin-bottom:var(--sp-6);
}
.section-head h2{
  font-size:clamp(23px,2.6vw,28px);
  font-weight:700;
  line-height:1.35;
  letter-spacing:.02em;
  color:var(--ink);
}
.section-head p{
  margin-top:var(--sp-3);
  color:var(--gray);
  font-size:15.5px;
}
.section-head--row{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:var(--sp-4);
  max-width:none;
}

/* ============ 评分总览 ============ */
.score-panel{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-md);
  padding:var(--sp-6);
}
.score-lead{
  display:flex;
  align-items:baseline;
  gap:12px;
}
.score-lead strong{
  font-size:56px;
  font-weight:800;
  line-height:1;
  color:var(--ink);
  font-variant-numeric:tabular-nums;
}
.score-lead em{
  font-style:normal;
  font-size:16px;
  color:var(--gray);
}
.stars{
  display:inline-flex;
  gap:3px;
  color:var(--coral);
  font-size:15px;
  margin-top:var(--sp-3);
}
.stars i.is-off{color:#DAD5CB;}
.score-count{
  margin-top:var(--sp-3);
  font-size:14px;
  color:var(--gray);
  font-variant-numeric:tabular-nums;
}
.bars{display:flex;flex-direction:column;gap:12px;}
.bar-row{
  display:flex;
  align-items:center;
  gap:12px;
  font-size:13.5px;
  color:var(--gray);
}
.bar-row .lab{
  width:46px;
  flex-shrink:0;
  font-variant-numeric:tabular-nums;
}
.bar-track{
  flex:1;
  height:9px;
  border-radius:999px;
  background:#EFEBE4;
  overflow:hidden;
}
.bar-track span{
  display:block;
  height:100%;
  border-radius:999px;
  background:linear-gradient(90deg,var(--primary),var(--primary-dark));
  transition:width .6s ease-out;
}
.bar-row .pct{
  width:44px;
  text-align:right;
  flex-shrink:0;
  font-variant-numeric:tabular-nums;
}
.mini-stats{display:flex;flex-direction:column;gap:var(--sp-4);}
.mini-stat{
  border-left:3px solid var(--primary);
  padding-left:var(--sp-4);
}
.mini-stat b{
  display:block;
  font-size:24px;
  font-weight:800;
  color:var(--ink);
  line-height:1.3;
  font-variant-numeric:tabular-nums;
}
.mini-stat span{font-size:13.5px;color:var(--gray);}

/* ============ 关键词墙 ============ */
.tag-wall{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  padding:var(--sp-5);
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-sm);
}
.tag-chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 16px;
  border-radius:999px;
  background:var(--bg);
  border:1px solid var(--line);
  font-size:14.5px;
  font-weight:600;
  color:var(--ink-2);
  transition:background .18s ease-out,border-color .18s ease-out,color .18s ease-out,transform .18s ease-out;
}
.tag-chip b{
  font-size:12.5px;
  font-weight:600;
  color:var(--primary-dark);
  background:var(--primary-soft);
  border-radius:999px;
  padding:1px 9px;
  font-variant-numeric:tabular-nums;
}
.tag-chip:hover{
  background:var(--primary-soft);
  border-color:var(--primary);
  color:var(--primary-dark);
  transform:translateY(-2px);
}

/* ============ 评价气泡网格 ============ */
.review-card{
  position:relative;
  height:100%;
  background:#fff;
  border:1px solid var(--line);
  border-radius:16px;
  box-shadow:var(--sh-sm);
  padding:22px 22px 18px;
  transition:box-shadow .18s ease-out,transform .18s ease-out,border-color .18s ease-out;
}
.review-card:hover{
  box-shadow:var(--sh-md);
  transform:translateY(-2px);
  border-color:#D6F2EC;
}
.review-card::before{
  content:"";
  position:absolute;
  top:-8px;left:26px;
  width:16px;height:16px;
  background:#fff;
  border-left:1px solid var(--line);
  border-top:1px solid var(--line);
  transform:rotate(45deg);
  border-top-left-radius:3px;
}
.review-top{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:var(--sp-3);
}
.avatar{
  width:42px;height:42px;
  border-radius:50%;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:16px;
  font-weight:700;
  color:#fff;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  flex-shrink:0;
}
.avatar--alt{background:linear-gradient(135deg,#FF8A63,var(--coral));}
.avatar--ink{background:linear-gradient(135deg,#3A4245,var(--ink));}
.review-name{font-size:15px;font-weight:600;color:var(--ink);}
.review-meta{font-size:12.5px;color:var(--gray);font-variant-numeric:tabular-nums;}
.review-rate{margin-left:auto;display:inline-flex;gap:2px;color:var(--coral);font-size:13px;}
.review-rate i.is-off{color:#DAD5CB;}
.review-text{
  font-size:15px;
  line-height:1.85;
  color:var(--ink-2);
}
.review-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:var(--sp-4);}
.review-foot{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  margin-top:var(--sp-4);
  padding-top:var(--sp-3);
  border-top:1px dashed var(--line);
  font-size:12.5px;
  color:var(--gray);
}
.review-foot .useful{display:inline-flex;align-items:center;gap:6px;}
.review-foot .useful i{color:var(--primary);}

/* ============ 表单 ============ */
.form-panel{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-md);
  padding:var(--sp-6);
}
.form-row{margin-bottom:var(--sp-5);}
.form-label{
  display:block;
  font-size:14.5px;
  font-weight:600;
  color:var(--ink);
  margin-bottom:10px;
}
.form-label span{font-weight:400;color:var(--gray);font-size:13px;}
.field{
  width:100%;
  height:46px;
  padding:0 14px;
  border:1px solid var(--line);
  border-radius:10px;
  background:var(--bg);
  font-size:15px;
  transition:border-color .18s ease-out,background .18s ease-out,box-shadow .18s ease-out;
}
textarea.field{
  height:auto;
  min-height:120px;
  padding:12px 14px;
  line-height:1.8;
  resize:vertical;
}
.field::placeholder{color:#9AA3A6;}
.field:focus{
  border-color:var(--primary);
  background:#fff;
  box-shadow:0 0 0 3px rgba(0,194,168,.14);
  outline:none;
}
.rate-picker{
  display:inline-flex;
  flex-direction:row-reverse;
  gap:6px;
}
.rate-picker input{position:absolute;opacity:0;width:1px;height:1px;}
.rate-picker label{
  font-size:26px;
  color:#DAD5CB;
  cursor:pointer;
  transition:color .16s ease-out,transform .16s ease-out;
}
.rate-picker label:hover,
.rate-picker label:hover ~ label,
.rate-picker input:checked ~ label{color:var(--coral);}
.rate-picker label:hover{transform:scale(1.08);}
.form-hint{font-size:13px;color:var(--gray);margin-top:10px;}
.form-note{
  display:none;
  align-items:center;
  gap:10px;
  margin-top:var(--sp-4);
  padding:12px 16px;
  border-radius:var(--r-sm);
  background:var(--primary-soft);
  color:var(--primary-dark);
  font-size:14px;
  font-weight:500;
}
.form-note.is-visible{display:flex;}

/* ============ FAQ ============ */
.faq-list{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-sm);
  overflow:hidden;
}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:var(--sp-4);
  padding:20px 22px;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  transition:background .18s ease-out,color .18s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  flex-shrink:0;
  width:26px;height:26px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  border:1.5px solid var(--primary);
  color:var(--primary-dark);
  font-size:16px;
  font-weight:600;
  line-height:1;
  transition:transform .18s ease-out,background .18s ease-out;
}
.faq-item summary:hover{background:var(--primary-soft);color:var(--primary-dark);}
.faq-item[open] summary{color:var(--primary-dark);}
.faq-item[open] summary::after{transform:rotate(45deg);background:var(--primary-soft);}
.faq-body{
  padding:0 22px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--gray);
  max-width:64em;
}

/* ============ CTA 带 ============ */
.cta-band{
  background:linear-gradient(135deg,var(--ink),#123A36);
  color:#fff;
  padding:var(--sp-8) 0;
}
.cta-band__inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:var(--sp-6);
}
.cta-band h2{
  font-size:clamp(22px,2.6vw,28px);
  font-weight:800;
  line-height:1.35;
  color:#fff;
}
.cta-band p{
  margin-top:var(--sp-3);
  color:rgba(255,255,255,.76);
  font-size:15.5px;
  max-width:34em;
}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink);
  color:rgba(255,255,255,.72);
  padding:var(--sp-8) 0 var(--sp-5);
}
.site-footer .grid-x{margin-bottom:var(--sp-6);}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:19px;
  font-weight:800;
  margin-bottom:var(--sp-4);
}
.footer-desc{
  font-size:14px;
  line-height:1.9;
  color:rgba(255,255,255,.6);
  max-width:30em;
}
.footer-col h4{
  font-size:15px;
  font-weight:700;
  color:var(--primary);
  margin-bottom:var(--sp-4);
  letter-spacing:.02em;
}
.footer-list{display:flex;flex-direction:column;gap:12px;}
.footer-list li{font-size:14px;color:rgba(255,255,255,.6);line-height:1.7;}
.footer-list a{color:rgba(255,255,255,.72);}
.footer-list a:hover{color:var(--primary);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-top:var(--sp-5);
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;
  color:rgba(255,255,255,.5);
}

/* ============ 悬浮跟买 & 移动 Tab ============ */
.float-buy{
  display:none;
  position:fixed;
  right:28px;bottom:28px;
  z-index:850;
  box-shadow:var(--sh-lg);
}
.mobile-tab{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:860;
  display:flex;
  background:#FFFDFB;
  border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom,0px);
  box-shadow:0 -4px 16px rgba(15,18,19,.06);
}
.mobile-tab a{
  flex:1;
  min-height:58px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:4px;
  font-size:11px;
  color:var(--gray);
  position:relative;
}
.mobile-tab a i{font-size:20px;}
.mobile-tab a.is-active{color:var(--primary-dark);font-weight:600;}
.mobile-tab a.is-active::before{
  content:"";
  position:absolute;
  top:0;left:50%;
  transform:translateX(-50%);
  width:26px;height:2px;
  border-radius:2px;
  background:var(--primary);
}
body{padding-bottom:78px;}

/* ============ 栅格微调 ============ */
.grid-x.grid-margin-x{margin-left:-12px;margin-right:-12px;}
.grid-x.grid-margin-x > .cell{padding-left:12px;padding-right:12px;}
.grid-x.grid-margin-y{margin-top:-24px;margin-bottom:0;}
.grid-x.grid-margin-y > .cell{margin-top:24px;margin-bottom:0;}

/* ============ 响应式 ============ */
@media (min-width:768px){
  .section{padding:88px 0;}
  .page-hero{padding:80px 0 64px;}
}
@media (min-width:1024px){
  .nav-links{display:flex;}
  .header-cta{display:inline-flex;}
  .nav-toggle{display:none;}
  .mobile-drawer{display:none;}
  .mobile-tab{display:none;}
  body{padding-bottom:0;}
  .float-buy{display:inline-flex;}
  .form-panel{padding:36px;}
}
@media (max-width:767px){
  .container{padding-left:16px;padding-right:16px;}
  .brand__text{font-size:18px;}
  .score-lead strong{font-size:46px;}
  .score-panel{padding:22px;}
  .review-card{padding:18px 18px 16px;}
  .cta-band__actions{width:100%;}
  .cta-band__actions .btn{flex:1;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .section{padding:48px 0;}
  .page-hero{padding:44px 0 40px;}
  .page-hero .lede{font-size:15.5px;}
  .hero-pills span{font-size:12.5px;padding:6px 12px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .btn:hover,.tag-chip:hover,.review-card:hover{transform:none;}
}