/* roulang page: index */
:root{
  --brand-deep:#073B2E;
  --brand-green:#0E9F7A;
  --electric:#38D6B4;
  --lime:#C8F04A;
  --orange:#FF6A2B;
  --ink:#162621;
  --muted:#5E736C;
  --bg:#F4F8F5;
  --card:#FFFFFF;
  --surface:#EAF3EE;
  --line:#D8E6DF;
  --danger:#D84C3F;
  --warn:#E9A23B;
  --ring:rgba(56,214,180,.38);
  --grad:linear-gradient(135deg,#073B2E 0%,#0E9F7A 48%,#38D6B4 72%,#C8F04A 100%);
  --grad-soft:linear-gradient(120deg,rgba(14,159,122,.12),rgba(200,240,74,.16));
  --shadow:0 12px 30px rgba(11,30,25,.08);
  --shadow-hover:0 18px 44px rgba(11,30,25,.14);
  --r-xl:28px;
  --r-lg:24px;
  --r-md:20px;
  --r-sm:14px;
  --gap:24px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16.5px;line-height:1.75;color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-sm)}
a{color:var(--brand-green);text-decoration:none;transition:color .18s ease}
a:hover,a:focus{color:var(--brand-deep)}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 14px}
h1,h2,h3,h4{margin:0 0 14px;line-height:1.25;color:var(--ink);font-weight:750}
button{font-family:inherit}
:focus-visible{outline:3px solid var(--ring);outline-offset:2px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1320px}}

.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ---------- 按钮 ---------- */
.btn,.button{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:999px;border:1px solid transparent;
  font-size:15.5px;font-weight:700;cursor:pointer;text-decoration:none;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease;
  background:transparent;color:inherit;line-height:1;
}
.btn--primary,.button--primary{
  background:linear-gradient(120deg,#0E9F7A 0%,#38D6B4 100%);
  color:#fff;box-shadow:0 10px 24px rgba(14,159,122,.28);
}
.btn--primary:hover,.button--primary:hover{filter:brightness(.94);transform:translateY(-2px);color:#fff;box-shadow:0 14px 30px rgba(14,159,122,.34)}
.btn--ghost{background:#fff;border-color:var(--brand-deep);color:var(--brand-deep)}
.btn--ghost:hover{background:var(--surface);color:var(--brand-deep);transform:translateY(-2px)}
.btn--light{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.6);color:#fff}
.btn--light:hover{background:rgba(255,255,255,.24);color:#fff;transform:translateY(-2px)}
.btn--sm{height:42px;padding:0 18px;font-size:14.5px}
.btn--block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.55;filter:saturate(.5);box-shadow:none;cursor:not-allowed;transform:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:700;color:var(--brand-deep)}
.link-arrow span{transition:transform .18s ease}
.link-arrow:hover span{transform:translateX(4px)}

/* ---------- 头部 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line)}
.site-header.is-scrolled{box-shadow:0 8px 26px rgba(11,30,25,.10)}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:72px}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand__mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;background:var(--grad);
  color:#fff;font-weight:800;font-size:19px;display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px rgba(14,159,122,.28)
}
.brand__text{display:flex;flex-direction:column;line-height:1.2}
.brand__text strong{font-size:16.5px;font-weight:800;letter-spacing:.2px}
.brand__text em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.4px}
.topbar__right{display:flex;align-items:center;gap:12px}
.top-search{display:flex;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:999px;height:42px;padding:0 6px 0 16px;transition:border-color .18s ease,box-shadow .18s ease}
.top-search:focus-within{border-color:var(--brand-green);box-shadow:0 0 0 3px var(--ring)}
.top-search input{border:0;background:transparent;outline:none;height:40px;width:186px;font-size:14px;color:var(--ink)}
.top-search button{border:0;background:transparent;cursor:pointer;width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--brand-green)}
.top-search button:hover{background:#fff}
.menu-btn{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;cursor:pointer;align-items:center;justify-content:center;color:var(--brand-deep)}
.menu-btn:hover{background:var(--surface)}

.channel-bar{border-top:1px solid var(--line);background:#fff}
.channel-bar__inner{display:flex;align-items:center;gap:8px;min-height:52px;overflow-x:auto;scrollbar-width:none}
.channel-bar__inner::-webkit-scrollbar{display:none}
.channel{
  position:relative;flex:0 0 auto;padding:9px 16px;border-radius:999px;font-size:14px;font-weight:600;
  color:var(--muted);white-space:nowrap;transition:background .18s ease,color .18s ease
}
.channel:hover{background:var(--surface);color:var(--brand-deep)}
.channel.is-active{background:var(--grad);color:#fff;box-shadow:0 8px 18px rgba(14,159,122,.24)}
.channel.is-active::after{content:"";position:absolute;left:16px;right:16px;bottom:-12px;height:2px;border-radius:2px;background:var(--grad)}

/* ---------- 抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(7,59,46,.42);opacity:0;pointer-events:none;transition:opacity .2s ease;z-index:80}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:308px;max-width:86vw;background:#fff;z-index:90;
  transform:translateX(102%);transition:transform .26s ease;padding:22px 20px;overflow-y:auto;box-shadow:-14px 0 40px rgba(11,30,25,.16)
}
.drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.drawer__close{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;cursor:pointer;color:var(--brand-deep)}
.drawer__title{font-size:13px;color:var(--muted);letter-spacing:1px;margin:18px 0 8px}
.drawer__link{display:block;padding:13px 14px;border-radius:var(--r-sm);color:var(--ink);font-weight:600;border:1px solid transparent}
.drawer__link:hover{background:var(--surface);border-color:var(--line);color:var(--brand-deep)}
.drawer__link.is-active{background:var(--grad-soft);border-color:var(--line);color:var(--brand-deep)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--brand-deep)}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(135deg,rgba(7,59,46,.95) 0%,rgba(14,159,122,.88) 52%,rgba(56,214,180,.74) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center
}
.hero::after{
  content:"";position:absolute;inset:0;opacity:.07;
  background-image:repeating-linear-gradient(115deg,#fff 0 1px,transparent 1px 62px),radial-gradient(circle at 82% 22%,rgba(200,240,74,.6),transparent 42%)
}
.hero__grid{position:relative;z-index:2;padding:72px 0 80px;align-items:center}
.hero{min-height:640px;display:flex;align-items:center}
.hero h1{color:#fff;font-size:clamp(2rem,5vw,3.5rem);line-height:1.15;font-weight:800;letter-spacing:-.4px;margin-bottom:18px}
.hero__sub{color:rgba(255,255,255,.88);font-size:17px;max-width:600px;margin-bottom:26px}
.pill{
  display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.34);color:#fff;font-size:13.5px;font-weight:600;margin-bottom:20px
}
.pill i{width:8px;height:8px;border-radius:50%;background:var(--lime);display:block}
.hero__cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.badges{display:flex;flex-wrap:wrap;gap:12px}
.badge{
  display:flex;flex-direction:column;gap:2px;padding:12px 18px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.28);min-width:132px
}
.badge b{font-size:20px;font-weight:800;color:var(--lime);line-height:1.2}
.badge span{font-size:12.5px;color:rgba(255,255,255,.84)}

.login-card{
  background:#fff;border-radius:var(--r-lg);padding:26px;box-shadow:0 24px 60px rgba(3,26,20,.32);
  position:relative
}
.login-card::before{
  content:"";position:absolute;inset:0;border-radius:var(--r-lg);padding:1px;background:var(--grad);
  -webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none
}
.login-card h2{font-size:19px;margin-bottom:6px}
.login-card p.hint{font-size:13.5px;color:var(--muted);margin-bottom:16px}
.tabs{display:flex;gap:6px;padding:5px;background:var(--surface);border-radius:999px;margin-bottom:18px}
.tab{flex:1;border:0;background:transparent;height:38px;border-radius:999px;font-size:14px;font-weight:700;color:var(--muted);cursor:pointer;transition:all .18s ease}
.tab.is-active{background:#fff;color:var(--brand-deep);box-shadow:0 6px 16px rgba(11,30,25,.12)}
.tab-panel{display:none}
.tab-panel.is-active{display:block}
.field{margin-bottom:14px}
.field label{display:block;font-size:13.5px;font-weight:700;margin-bottom:6px;color:var(--ink)}
.field input,.field select{
  width:100%;height:48px;border-radius:var(--r-sm);border:1px solid var(--line);
  padding:0 14px;font-size:15px;color:var(--ink);background:#fff;outline:none;transition:border-color .18s ease,box-shadow .18s ease
}
.field input:focus{border-color:var(--brand-green);box-shadow:0 0 0 3px var(--ring)}
.field-row{display:flex;justify-content:space-between;align-items:center;font-size:13.5px;margin-bottom:16px;color:var(--muted)}
.field-row label{display:flex;align-items:center;gap:7px;font-size:13.5px}
.form-note{font-size:12.5px;color:var(--muted);text-align:center;margin:14px 0 0}

/* ---------- 板块通用 ---------- */
.section{padding:84px 0}
.section--tight{padding:64px 0}
.section--surface{background:var(--surface)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.section-head__left{max-width:660px}
.tag{
  display:inline-flex;align-items:center;gap:8px;padding:5px 14px;border-radius:999px;font-size:13px;font-weight:700;
  background:var(--grad-soft);color:var(--brand-deep);border:1px solid var(--line);margin-bottom:14px
}
.tag i{width:14px;height:2px;background:var(--grad);border-radius:2px;display:block}
.section-head h2{font-size:clamp(1.5rem,3vw,2.25rem);font-weight:750;margin-bottom:10px}
.section-head p{color:var(--muted);margin:0;max-width:620px}

/* ---------- 品牌主张 ---------- */
.claim__text{font-size:16.5px;color:var(--muted);margin-bottom:16px;max-width:620px}
.claim__text strong{color:var(--ink)}
.stat-stack{display:flex;flex-direction:column;gap:12px;margin-bottom:18px}
.stat{
  display:flex;align-items:center;gap:14px;padding:15px 18px;border-radius:var(--r-sm);
  background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)
}
.stat b{font-size:22px;font-weight:800;color:var(--brand-green);min-width:74px}
.stat span{font-size:14px;color:var(--muted)}
.claim__figure{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow)}
.claim__figure img{width:100%;height:320px;object-fit:cover;border-radius:0}
.claim__figure figcaption{
  position:absolute;left:16px;bottom:16px;background:rgba(7,59,46,.82);color:#fff;font-size:13px;
  padding:8px 14px;border-radius:999px
}

/* ---------- 登录步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}
.steps::before{content:"";position:absolute;left:6%;right:6%;top:34px;height:2px;background:linear-gradient(90deg,rgba(14,159,122,.5),rgba(200,240,74,.6));z-index:0}
.step{
  position:relative;z-index:1;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px 22px;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--electric)}
.step__no{
  width:44px;height:44px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:17px;color:#fff;background:var(--grad);margin-bottom:16px
}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:14.5px;color:var(--muted);margin:0}

/* ---------- 频道卡 ---------- */
.channel-cards .card--big{height:100%}
.card{
  position:relative;display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;height:100%
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:transparent}
.card::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-lg);padding:1px;background:var(--grad);opacity:0;
  transition:opacity .22s ease;-webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none
}
.card:hover::after{opacity:1}
.card__media{position:relative;overflow:hidden}
.card__media img{width:100%;border-radius:0;transition:transform .4s ease}
.card:hover .card__media img{transform:scale(1.05)}
.card--big .card__media img{height:270px;object-fit:cover}
.card--small .card__media img{height:132px;object-fit:cover}
.card__body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.card__meta{display:flex;align-items:center;gap:8px;margin-bottom:10px;flex-wrap:wrap}
.chip{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;font-size:12.5px;font-weight:700;
  background:var(--surface);color:var(--brand-deep);border:1px solid var(--line)
}
.chip--lime{background:rgba(200,240,74,.35);border-color:rgba(200,240,74,.7);color:#3c5213}
.chip--orange{background:rgba(255,106,43,.12);border-color:rgba(255,106,43,.3);color:#a83d13}
.card h3{font-size:18px;margin-bottom:8px}
.card--big h3{font-size:22px}
.card p{font-size:14.5px;color:var(--muted);margin-bottom:16px}
.card__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px}
.count{font-size:13px;color:var(--muted);font-weight:600}
.stack-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;height:100%}
.stack-cards .card:nth-child(3){grid-column:span 2}

/* ---------- 最新信息 ---------- */
.filter-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:26px}
.filter-tabs button{
  height:38px;padding:0 18px;border-radius:999px;border:1px solid var(--line);background:#fff;
  font-size:14px;font-weight:600;color:var(--muted);cursor:pointer;transition:all .18s ease
}
.filter-tabs button:hover{border-color:var(--electric);color:var(--brand-deep)}
.filter-tabs button.is-active{background:var(--grad);color:#fff;border-color:transparent}
.news-grid .cell{margin-bottom:24px}
.news-card{
  display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.news-card__media img{width:100%;height:186px;object-fit:cover;border-radius:0}
.news-card--featured .news-card__media img{height:100%;min-height:280px}
.news-card__body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.news-card h3{font-size:17.5px;margin-bottom:8px}
.news-card--featured h3{font-size:23px}
.news-card p{font-size:14.5px;color:var(--muted);margin-bottom:14px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-card__meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--muted)}
.empty-state{
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-lg);padding:56px 24px;text-align:center
}
.empty-state__icon{
  width:64px;height:64px;border-radius:20px;margin:0 auto 18px;background:var(--grad-soft);
  display:flex;align-items:center;justify-content:center;color:var(--brand-green)
}
.empty-state p{color:var(--muted);margin-bottom:20px}
.empty-state .empty-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* ---------- 信任背书 ---------- */
.trust-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:34px
}
.trust-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:22px;box-shadow:var(--shadow)
}
.trust-item b{display:block;font-size:26px;font-weight:800;color:var(--brand-deep);margin-bottom:6px}
.trust-item b em{font-style:normal;color:var(--brand-green);font-size:15px;margin-left:4px}
.trust-item span{font-size:14px;color:var(--muted)}
.trust-cards{display:grid;grid-template-columns:8fr 4fr;gap:22px}
.trust-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--shadow)}
.trust-card h3{font-size:19px;margin-bottom:12px}
.trust-card p{font-size:14.5px;color:var(--muted)}
.trust-card ul li{position:relative;padding-left:20px;font-size:14.5px;color:var(--muted);margin-bottom:9px}
.trust-card ul li::before{content:"";position:absolute;left:0;top:10px;width:8px;height:8px;border-radius:3px;background:var(--grad)}
.trust-card--dark{background:linear-gradient(140deg,#073B2E,#0E9F7A);border-color:transparent;color:#fff}
.trust-card--dark h3,.trust-card--dark p,.trust-card--dark ul li{color:#fff}
.trust-card--dark ul li{color:rgba(255,255,255,.86)}
.trust-card--dark ul li::before{background:var(--lime)}

/* ---------- FAQ ---------- */
.faq{max-width:800px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);margin-bottom:12px;overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease}
.faq-item:hover{border-color:var(--electric)}
.faq-item.is-open{box-shadow:var(--shadow);border-color:var(--electric)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;text-align:left;border:0;background:transparent;
  padding:20px 22px;font-size:17px;font-weight:700;color:var(--ink);cursor:pointer;
}
.faq-q__mark{width:26px;height:26px;flex:0 0 26px;border-radius:9px;background:var(--grad-soft);position:relative}
.faq-q__mark::before,.faq-q__mark::after{content:"";position:absolute;background:var(--brand-green);border-radius:2px;transition:transform .22s ease,opacity .22s ease}
.faq-q__mark::before{left:7px;top:12px;width:12px;height:2px}
.faq-q__mark::after{left:12px;top:7px;width:2px;height:12px}
.faq-item.is-open .faq-q__mark::after{transform:rotate(90deg);opacity:0}
.faq-a{display:none;padding:0 22px 22px 62px;font-size:15.5px;line-height:1.8;color:var(--muted)}
.faq-item.is-open .faq-a{display:block}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--grad);border-radius:var(--r-xl);padding:48px;display:grid;grid-template-columns:1.25fr 1fr;
  gap:32px;align-items:center;color:#fff;position:relative;overflow:hidden
}
.cta-band::after{content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;background:rgba(255,255,255,.12)}
.cta-band h2{color:#fff;font-size:clamp(1.4rem,2.6vw,2rem);margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.9);margin:0;font-size:15.5px}
.subscribe{position:relative;z-index:2;display:flex;gap:10px;background:rgba(255,255,255,.16);padding:10px;border-radius:999px;border:1px solid rgba(255,255,255,.4)}
.subscribe input{
  flex:1;height:46px;border:0;border-radius:999px;background:#fff;padding:0 18px;font-size:15px;outline:none;min-width:0
}
.subscribe .btn{height:46px;background:#073B2E;color:#fff}
.subscribe .btn:hover{background:#052c22;color:#fff}
.subscribe-note{position:relative;z-index:2;font-size:13px;color:rgba(255,255,255,.86);margin-top:12px}

/* ---------- 页脚 ---------- */
.site-footer{background:#062A21;color:rgba(255,255,255,.78);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;color:#fff}
.footer-brand .brand__mark{box-shadow:none}
.footer-brand .brand__text strong{color:#fff}
.footer-brand .brand__text em{color:rgba(255,255,255,.6)}
.site-footer p{font-size:14px;color:rgba(255,255,255,.68);max-width:320px}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700}
.footer-col a{display:block;font-size:14px;color:rgba(255,255,255,.72);padding:6px 0}
.footer-col a:hover{color:var(--lime)}
.footer-social{display:flex;gap:10px;margin-top:14px}
.footer-social a{width:38px;height:38px;border-radius:12px;background:rgba(255,255,255,.1);display:flex;align-items:center;justify-content:center;color:#fff;padding:0}
.footer-social a:hover{background:var(--brand-green);color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:20px 0;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.6)}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .section{padding:60px 0}
  .hero{min-height:auto}
  .hero__grid{padding:56px 0 64px}
  .top-search{display:none}
  .steps{grid-template-columns:repeat(2,1fr)}
  .steps::before{display:none}
  .stack-cards{grid-template-columns:1fr}
  .stack-cards .card:nth-child(3){grid-column:span 1}
  .trust-strip{grid-template-columns:repeat(2,1fr)}
  .trust-cards{grid-template-columns:1fr}
  .cta-band{grid-template-columns:1fr;padding:38px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:640px){
  body{font-size:16px}
  .container{padding:0 18px}
  .menu-btn{display:flex}
  .topbar__inner{min-height:56px}
  .brand__mark{width:36px;height:36px;flex:0 0 36px;font-size:17px}
  .brand__text strong{font-size:15px}
  .brand__text em{display:none}
  .channel-bar__inner{min-height:48px;scroll-snap-type:x mandatory}
  .channel{scroll-snap-align:start}
  .channel.is-active::after{display:none}
  .hero__grid{padding:40px 0 48px}
  .hero h1{font-size:1.9rem}
  .hero__sub{font-size:15.5px}
  .hero__cta .btn{width:100%}
  .badges{gap:10px}
  .badge{flex:1 1 44%;min-width:0;padding:10px 14px}
  .badge b{font-size:18px}
  .steps{grid-template-columns:1fr}
  .section{padding:44px 0}
  .section-head{margin-bottom:24px}
  .news-card--featured .news-card__media img{min-height:200px}
  .trust-strip{grid-template-columns:1fr}
  .faq-a{padding:0 18px 20px 18px}
  .cta-band{padding:28px 22px;border-radius:22px}
  .subscribe{flex-direction:column;border-radius:22px}
  .subscribe .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
}

/* roulang page: article */
:root{
  --brand-900:#073B2E;
  --brand-600:#0E9F7A;
  --cyan:#38D6B4;
  --lime:#C8F04A;
  --orange:#FF6A2B;
  --ink:#162621;
  --muted:#5E736C;
  --bg:#F4F8F5;
  --card:#FFFFFF;
  --surface:#EAF3EE;
  --line:#D8E6DF;
  --danger:#D84C3F;
  --warn:#E9A23B;
  --ring:rgba(56,214,180,.38);
  --grad:linear-gradient(135deg,#073B2E 0%,#0E9F7A 48%,#38D6B4 72%,#C8F04A 100%);
  --grad-soft:linear-gradient(135deg,rgba(14,159,122,.14) 0%,rgba(56,214,180,.10) 60%,rgba(200,240,74,.14) 100%);
  --radius-card:22px;
  --radius-img:15px;
  --radius-btn:999px;
  --shadow:0 12px 30px rgba(11,30,25,.08);
  --shadow-hover:0 18px 44px rgba(11,30,25,.14);
  --font:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius-img)}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease}
a:hover,a:focus{color:var(--brand-900)}
h1,h2,h3,h4{margin:0 0 .6em;color:var(--ink);letter-spacing:-.01em}
h1{font-size:clamp(2rem,5vw,3.5rem);line-height:1.15;font-weight:800}
h2{font-size:clamp(1.5rem,3vw,2.25rem);line-height:1.25;font-weight:750}
h3{font-size:1.3rem;line-height:1.35;font-weight:700}
h4{font-size:1.08rem;font-weight:700}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em;padding-left:1.25em}
li{margin-bottom:.4em}
strong{font-weight:700}
.num,.badge,.stat{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1440px){.container{max-width:1320px}}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  height:48px;padding:0 24px;border:1px solid transparent;
  border-radius:var(--radius-btn);font-size:15.5px;font-weight:700;
  cursor:pointer;text-align:center;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px var(--ring)}
.btn--primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(14,159,122,.28)}
.btn--primary:hover{color:#fff;transform:translateY(-2px);filter:brightness(.94);box-shadow:0 14px 30px rgba(14,159,122,.32)}
.btn--ghost{background:#fff;color:var(--brand-900);border-color:var(--line)}
.btn--ghost:hover{background:var(--surface);color:var(--brand-900);transform:translateY(-2px)}
.btn--sm{height:42px;padding:0 18px;font-size:14.5px}
.btn--text{height:auto;padding:0;color:var(--brand-600);background:none;border:none}
.btn--text .arrow{transition:transform .2s ease}
.btn--text:hover .arrow{transform:translateX(4px)}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:700;
  background:var(--surface);color:var(--brand-900);border:1px solid var(--line);
}
.tag--lime{background:rgba(200,240,74,.28);border-color:rgba(200,240,74,.6);color:#3b5310}
.tag--orange{background:rgba(255,106,43,.12);border-color:rgba(255,106,43,.32);color:#a23c0c}
.tag--cyan{background:rgba(56,214,180,.18);border-color:rgba(56,214,180,.45);color:#0a6a55}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line)}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:72px}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand__mark{
  width:40px;height:40px;border-radius:12px;flex:0 0 40px;
  background:var(--grad);color:#fff;font-weight:800;font-size:19px;
  display:flex;align-items:center;justify-content:center;box-shadow:0 8px 18px rgba(14,159,122,.28);
}
.brand__text{display:flex;flex-direction:column;line-height:1.2}
.brand__text strong{font-size:17px;font-weight:800;letter-spacing:-.01em}
.brand__text em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.02em}
.topbar__actions{display:flex;align-items:center;gap:12px}
.nav-search{display:flex;align-items:center;gap:6px;background:var(--bg);border:1px solid var(--line);border-radius:999px;padding:4px 6px 4px 14px}
.nav-search input{border:none;background:transparent;outline:none;height:36px;width:180px;font-size:14px;color:var(--ink);font-family:var(--font)}
.nav-search input::placeholder{color:#93a49d}
.nav-search button{width:34px;height:34px;border-radius:999px;border:none;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer}
.menu-toggle{display:none;width:44px;height:44px;border-radius:14px;border:1px solid var(--line);background:#fff;cursor:pointer;align-items:center;justify-content:center}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--brand-900);border-radius:2px;position:relative}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand-900);border-radius:2px}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}
.channel-bar{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.channel-bar__inner{display:flex;align-items:center;gap:8px;min-height:52px;overflow-x:auto;scroll-snap-type:x proximity;-webkit-overflow-scrolling:touch;scrollbar-width:none}
.channel-bar__inner::-webkit-scrollbar{display:none}
.channel{
  position:relative;flex:0 0 auto;scroll-snap-align:start;
  display:inline-flex;align-items:center;padding:8px 16px;border-radius:999px;
  font-size:14px;font-weight:600;color:var(--muted);transition:all .2s ease;
}
.channel:hover{color:var(--brand-900);background:var(--surface)}
.channel.is-active{color:#fff;background:var(--grad);box-shadow:0 8px 18px rgba(14,159,122,.26)}
.channel.is-active::after{content:"";position:absolute;left:16px;right:16px;bottom:-13px;height:2px;border-radius:2px;background:var(--grad)}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:#fff;padding:16px 0 22px}
.mobile-drawer.is-open{display:block}
.mobile-drawer a{display:block;padding:12px 4px;font-size:15px;font-weight:600;color:var(--ink);border-bottom:1px dashed var(--line)}
.mobile-drawer a:last-of-type{border-bottom:none}
.mobile-drawer .btn{width:100%;justify-content:center;margin-top:14px}

/* ---------- article banner ---------- */
.article-banner{
  position:relative;overflow:hidden;color:#fff;
  background-image:linear-gradient(115deg,rgba(7,59,46,.94) 0%,rgba(14,159,122,.88) 52%,rgba(56,214,180,.78) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.article-banner::after{
  content:"";position:absolute;inset:auto -80px -120px auto;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,240,74,.30),transparent 62%);
}
.article-banner__inner{position:relative;z-index:2;padding:56px 0 60px;max-width:900px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.82);margin-bottom:20px}
.crumbs a{color:rgba(255,255,255,.88)}
.crumbs a:hover{color:#fff;text-decoration:underline}
.crumbs span.sep{opacity:.6}
.crumbs .current{color:#fff;font-weight:600;max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-banner .kicker{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.32);
  font-size:13px;font-weight:700;color:#fff;margin-bottom:18px;
}
.article-banner h1{color:#fff;margin-bottom:18px;text-shadow:0 2px 18px rgba(4,32,24,.28)}
.article-meta{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:14px;color:rgba(255,255,255,.88)}
.article-meta b{color:#fff;font-weight:600}

/* ---------- layout ---------- */
.page{padding:56px 0 72px}
.article-layout{align-items:flex-start}
.article-main{min-width:0}
.article-shell{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow);padding:40px 44px;
}
.article-body{max-width:800px;font-size:17.5px;line-height:1.95;color:#22322c}
.article-body h2{position:relative;margin:2em 0 .7em;padding-left:18px;font-size:clamp(1.35rem,2.4vw,1.7rem)}
.article-body h2::before{content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:6px;border-radius:6px;background:var(--grad)}
.article-body h3{margin:1.6em 0 .6em;font-size:1.22rem}
.article-body h4{margin:1.4em 0 .5em;font-size:1.06rem;color:var(--brand-900)}
.article-body > p:first-of-type{font-size:1.1em;color:#1d2f29}
.article-body ul,.article-body ol{padding-left:1.3em}
.article-body li::marker{color:var(--brand-600);font-weight:700}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;border-left:5px solid var(--brand-600);
  background:var(--surface);border-radius:0 16px 16px 0;color:#25443a;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{margin:1.6em 0;border:1px solid var(--line)}
.article-body figure{margin:1.6em 0}
.article-body figure figcaption{font-size:14px;color:var(--muted);margin-top:8px;text-align:center}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15.5px;border:1px solid var(--line);border-radius:14px;overflow:hidden}
.article-body thead th{background:var(--brand-900);color:#fff;font-weight:700;text-align:left;padding:12px 16px}
.article-body tbody td{padding:11px 16px;border-top:1px solid var(--line)}
.article-body tbody tr:nth-child(even){background:#fafdfb}
.article-body a{text-decoration:underline;text-decoration-color:rgba(14,159,122,.4);text-underline-offset:3px}
.article-body a:hover{text-decoration-color:var(--brand-600)}
.article-body hr{border:none;border-top:1px dashed var(--line);margin:2em 0}
.empty-state{text-align:center;padding:48px 20px}
.empty-state .icon{width:64px;height:64px;margin:0 auto 18px;border-radius:20px;background:var(--grad-soft);display:flex;align-items:center;justify-content:center;color:var(--brand-600)}
.empty-state h3{margin-bottom:8px}
.empty-state p{color:var(--muted);margin-bottom:22px}

/* ---------- sidebar ---------- */
.article-side{display:flex;flex-direction:column;gap:20px;position:sticky;top:150px}
.side-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow);padding:24px}
.side-card h3{font-size:16.5px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--grad)}
.side-list{list-style:none;margin:0;padding:0}
.side-list li{margin-bottom:10px}
.side-list a{display:block;font-size:15px;color:var(--ink);font-weight:600;padding:10px 12px;border-radius:12px;background:var(--bg);border:1px solid transparent;transition:all .2s ease}
.side-list a:hover{background:var(--surface);border-color:var(--line);color:var(--brand-900);transform:translateX(3px)}
.side-note{font-size:14px;color:var(--muted);line-height:1.8}
.side-card--grad{background:var(--grad);border:none;color:#fff}
.side-card--grad h3{color:#fff}
.side-card--grad h3::before{background:rgba(255,255,255,.85)}
.side-card--grad p{color:rgba(255,255,255,.88);font-size:14.5px;margin-bottom:16px}
.side-card--grad .btn{background:#fff;color:var(--brand-900);width:100%;justify-content:center}
.side-card--grad .btn:hover{color:var(--brand-900);filter:none;background:#F2FBF7}

/* ---------- related ---------- */
.section{padding:64px 0}
.section--plain{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap}
.section-head .kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--brand-600);margin-bottom:10px}
.section-head .kicker::before{content:"";width:22px;height:3px;border-radius:3px;background:var(--grad)}
.section-head h2{margin-bottom:6px}
.section-head p{color:var(--muted);margin:0;max-width:640px}
.card-grid{display:grid;gap:22px;grid-template-columns:repeat(3,minmax(0,1fr))}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(56,214,180,.7)}
.card__media{position:relative;overflow:hidden;aspect-ratio:16/10}
.card__media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .4s ease}
.card:hover .card__media img{transform:scale(1.05)}
.card__body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card__body h3{font-size:17.5px;margin:0}
.card__body p{font-size:14.8px;color:var(--muted);margin:0;line-height:1.75}
.card__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13.5px;color:var(--muted)}
.card__foot .arrow{transition:transform .2s ease;color:var(--brand-600);font-weight:700}
.card:hover .card__foot .arrow{transform:translateX(4px)}

/* ---------- CTA ---------- */
.cta-banner{
  background:var(--grad);border-radius:28px;padding:48px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:0 22px 50px rgba(14,159,122,.26);position:relative;overflow:hidden;
}
.cta-banner::after{content:"";position:absolute;right:-60px;top:-70px;width:260px;height:260px;border-radius:50%;background:rgba(255,255,255,.14)}
.cta-banner h2{color:#fff;margin-bottom:8px;font-size:clamp(1.4rem,2.6vw,2rem)}
.cta-banner p{color:rgba(255,255,255,.9);margin:0;max-width:560px;font-size:15.5px}
.cta-banner .cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:2}
.cta-banner .btn--ghost{background:#fff;color:var(--brand-900);border-color:#fff}
.cta-banner .btn--ghost:hover{background:rgba(255,255,255,.88);color:var(--brand-900)}
.cta-banner .btn--line{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.6)}
.cta-banner .btn--line:hover{background:rgba(255,255,255,.2);color:#fff}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.82);padding:64px 0 0;margin-top:72px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand__mark{box-shadow:none}
.footer-brand .brand__text strong{color:#fff}
.footer-brand .brand__text em{color:rgba(255,255,255,.62)}
.site-footer p{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.7)}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social a{width:36px;height:36px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.1);color:#fff;transition:all .2s ease}
.footer-social a:hover{background:var(--cyan);color:var(--brand-900);transform:translateY(-2px)}
.footer-col h3{color:#fff;font-size:15.5px;margin-bottom:16px}
.footer-col a{display:block;font-size:14.5px;color:rgba(255,255,255,.72);padding:6px 0;transition:all .2s ease}
.footer-col a:hover{color:var(--lime);transform:translateX(3px)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0 26px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.6);
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .article-shell{padding:34px 32px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:1023px){
  .nav-search{display:none}
  .article-side{position:static}
  .article-banner__inner{padding:44px 0 48px}
  .page{padding:40px 0 56px}
  .section{padding:52px 0}
}
@media (max-width:767px){
  body{font-size:16px}
  .topbar__inner{min-height:56px}
  .brand__text em{display:none}
  .topbar__actions .btn--sm{display:none}
  .menu-toggle{display:flex}
  .article-shell{padding:24px 20px;border-radius:18px}
  .article-body{font-size:17px;line-height:1.9;max-width:100%}
  .article-banner .current{max-width:200px}
  .card-grid{grid-template-columns:1fr}
  .cta-banner{padding:32px 24px;border-radius:22px}
  .cta-banner .cta-actions{width:100%}
  .cta-banner .cta-actions .btn{width:100%;justify-content:center}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;gap:6px}
  .channel-bar__inner{min-height:48px}
  .channel{font-size:13.5px;padding:7px 14px}
}
@media (max-width:519px){
  .container{padding:0 16px}
  .brand__text strong{font-size:15.5px}
  .article-banner__inner{padding:34px 0 38px}
  .section-head{margin-bottom:22px}
}
.foundation-override,.site-header a,.site-footer a{text-decoration:none}
button:focus-visible,input:focus-visible,a:focus-visible{outline:none}
input[type="search"]::-webkit-search-cancel-button{display:none}

/* roulang page: category1 */
:root{
  --brand-900:#073B2E;
  --brand-600:#0E9F7A;
  --electric:#38D6B4;
  --lime:#C8F04A;
  --orange:#FF6A2B;
  --ink:#162621;
  --muted:#5E736C;
  --bg:#F4F8F5;
  --card:#FFFFFF;
  --surface:#EAF3EE;
  --border:#D8E6DF;
  --danger:#D84C3F;
  --warn:#E9A23B;
  --ring:rgba(56,214,180,.38);
  --grad:linear-gradient(135deg,#073B2E 0%,#0E9F7A 48%,#38D6B4 72%,#C8F04A 100%);
  --grad-soft:linear-gradient(135deg,rgba(14,159,122,.14) 0%,rgba(56,214,180,.14) 55%,rgba(200,240,74,.18) 100%);
  --radius:22px;
  --radius-sm:14px;
  --radius-lg:28px;
  --shadow:0 12px 30px rgba(11,30,25,.08);
  --shadow-hover:0 18px 44px rgba(11,30,25,.14);
  --font:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;border-style:none}
a{color:var(--brand-600);text-decoration:none;transition:color .22s ease,background-color .22s ease}
a:hover{color:var(--brand-900)}
h1,h2,h3,h4,p,ul,ol,dl,dd{margin:0}
ul,ol{padding-left:1.15em}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:15px}
:focus-visible{outline:3px solid var(--ring);outline-offset:2px}
.num{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1440px){.container{max-width:1320px}}
.section{padding:80px 0;position:relative}
.section--tight{padding:64px 0}
.section--surface{background:var(--surface)}
@media (max-width:1023px){.section{padding:56px 0}.section--tight{padding:48px 0}}
@media (max-width:639px){.section{padding:44px 0}.section--tight{padding:38px 0}}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--border);transition:box-shadow .25s ease}
.site-header.is-scrolled{box-shadow:0 10px 26px rgba(11,30,25,.10)}
.brand-bar__inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:72px}
.brand{display:flex;align-items:center;gap:12px;color:var(--brand-900)}
.brand:hover{color:var(--brand-900)}
.brand__mark{
  flex:0 0 auto;width:40px;height:40px;border-radius:13px;background:var(--grad);
  color:#fff;font-weight:800;font-size:19px;display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px rgba(14,159,122,.30);letter-spacing:.5px;
}
.brand__text strong{display:block;font-size:17px;font-weight:800;line-height:1.25;letter-spacing:.2px;color:var(--brand-900)}
.brand__text em{display:block;font-style:normal;font-size:12px;color:var(--muted);line-height:1.4;letter-spacing:.3px}
.brand-actions{display:flex;align-items:center;gap:12px}
.nav-search{display:flex;align-items:center;gap:6px;background:var(--surface);border:1px solid var(--border);border-radius:999px;padding:5px 6px 5px 16px;transition:border-color .2s ease,box-shadow .2s ease}
.nav-search:focus-within{border-color:var(--brand-600);box-shadow:0 0 0 3px var(--ring)}
.nav-search input{
  border:0;background:transparent;outline:none;width:190px;height:32px;color:var(--ink);
}
.nav-search input::placeholder{color:#93A79F}
.nav-search button{
  border:0;background:var(--brand-900);color:#fff;border-radius:999px;width:34px;height:34px;
  display:flex;align-items:center;justify-content:center;transition:background .2s ease;
}
.nav-search button:hover{background:var(--brand-600)}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:13px;border:1px solid var(--border);background:#fff;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.menu-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:var(--brand-900);transition:transform .2s ease,opacity .2s ease}
@media (max-width:1023px){
  .nav-search{display:none}
  .menu-toggle{display:flex}
  .brand-bar__inner{min-height:60px}
}
@media (max-width:639px){
  .brand-bar__inner{min-height:56px;gap:10px}
  .brand__mark{width:36px;height:36px;border-radius:11px;font-size:17px}
  .brand__text strong{font-size:15px}
  .brand__text em{display:none}
  .brand-actions .btn{display:none}
}

/* ---------- channel bar ---------- */
.channel-bar{background:#fff;border-top:1px solid var(--border)}
.channel-bar__inner{
  display:flex;align-items:center;gap:8px;min-height:52px;
  overflow-x:auto;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
  scrollbar-width:none;
}
.channel-bar__inner::-webkit-scrollbar{display:none}
.channel{
  flex:0 0 auto;scroll-snap-align:start;
  padding:8px 18px;border-radius:999px;font-size:14px;font-weight:600;color:var(--muted);
  white-space:nowrap;border:1px solid transparent;transition:all .22s ease;
}
.channel:hover{color:var(--brand-900);background:var(--surface)}
.channel.is-active{
  color:#fff;background:linear-gradient(135deg,#073B2E 0%,#0E9F7A 60%,#38D6B4 100%);
  box-shadow:0 8px 20px rgba(14,159,122,.28);
}
.channel.is-active:hover{color:#fff}

/* ---------- drawer ---------- */
.drawer{position:fixed;inset:0;z-index:90;display:none}
.drawer.is-open{display:block}
.drawer__mask{position:absolute;inset:0;background:rgba(7,32,25,.52);backdrop-filter:blur(2px)}
.drawer__panel{
  position:absolute;top:0;right:0;height:100%;width:min(88vw,360px);background:#fff;
  padding:22px 22px 32px;overflow-y:auto;box-shadow:-16px 0 40px rgba(11,30,25,.18);
  animation:drawerIn .28s ease;
}
@keyframes drawerIn{from{transform:translateX(24px);opacity:.4}to{transform:none;opacity:1}}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer__head strong{font-size:16px;color:var(--brand-900)}
.drawer__close{width:40px;height:40px;border-radius:12px;border:1px solid var(--border);background:#fff;font-size:20px;line-height:1;color:var(--brand-900)}
.drawer__link{
  display:block;padding:13px 14px;border-radius:14px;font-weight:600;color:var(--ink);
  border:1px solid var(--border);margin-bottom:10px;background:#fff;
}
.drawer__link:hover{background:var(--surface);color:var(--brand-900)}
.drawer__link.is-active{background:var(--grad);color:#fff;border-color:transparent}
.drawer__cta{margin-top:16px;display:block;text-align:center}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:999px;font-size:15px;font-weight:700;
  border:1px solid transparent;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease;
  text-align:center;line-height:1.2;
}
.btn--primary{background:linear-gradient(135deg,#0E9F7A 0%,#38D6B4 100%);color:#fff;box-shadow:0 12px 26px rgba(14,159,122,.28)}
.btn--primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px rgba(14,159,122,.34);filter:brightness(.94)}
.btn--primary:active{transform:translateY(0);filter:brightness(.9)}
.btn--ghost{background:#fff;color:var(--brand-900);border-color:var(--brand-900)}
.btn--ghost:hover{background:var(--surface);color:var(--brand-900);transform:translateY(-2px)}
.btn--light{background:rgba(255,255,255,.92);color:var(--brand-900);border-color:transparent}
.btn--light:hover{background:#fff;color:var(--brand-900);transform:translateY(-2px)}
.btn--outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.7)}
.btn--outline-light:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px)}
.btn--sm{min-height:42px;padding:0 20px;font-size:14px}
.btn--text{padding:0;min-height:auto;color:var(--brand-600);font-weight:700;background:none}
.btn--text .arrow{transition:transform .22s ease;display:inline-block}
.btn--text:hover{color:var(--brand-900)}
.btn--text:hover .arrow{transform:translateX(4px)}
.btn[disabled],.btn.is-disabled{background:#CFDCD6;color:#fff;box-shadow:none;transform:none;pointer-events:none}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;color:#fff;background-color:var(--brand-900);
  background-size:cover;background-position:center;
  padding:70px 0 76px;overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(circle at 88% 18%,rgba(200,240,74,.22),transparent 46%),
    radial-gradient(circle at 8% 88%,rgba(56,214,180,.20),transparent 52%);
}
.page-hero .container{position:relative;z-index:2}
.page-hero__grid{display:grid;grid-template-columns:1.35fr .95fr;gap:48px;align-items:center}
@media (max-width:1023px){
  .page-hero{padding:52px 0 58px}
  .page-hero__grid{grid-template-columns:1fr;gap:32px}
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.78);margin-bottom:18px}
.breadcrumb a{color:rgba(255,255,255,.86)}
.breadcrumb a:hover{color:#fff;text-decoration:underline}
.breadcrumb span.sep{opacity:.6}
.page-hero h1{
  font-size:clamp(2rem,4.4vw,3.1rem);line-height:1.15;font-weight:800;letter-spacing:-.5px;margin-bottom:18px;
}
.page-hero h1 .hl{
  background:linear-gradient(135deg,#C8F04A 0%,#38D6B4 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.page-hero__lead{font-size:17px;line-height:1.85;color:rgba(255,255,255,.88);max-width:640px;margin-bottom:14px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);color:#fff;
}
.tag--lime{background:rgba(200,240,74,.18);border-color:rgba(200,240,74,.42);color:#EAFBB4}
.tag--orange{background:rgba(255,106,43,.18);border-color:rgba(255,106,43,.45);color:#FFD6BF}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.hero-badges{display:flex;flex-wrap:wrap;gap:14px}
.badge-block{
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);border-radius:16px;
  padding:12px 18px;min-width:132px;
}
.badge-block strong{display:block;font-size:20px;font-weight:800;color:#fff;letter-spacing:.3px}
.badge-block span{display:block;font-size:12.5px;color:rgba(255,255,255,.78);margin-top:2px}
.hero-card{
  background:#fff;color:var(--ink);border-radius:24px;padding:8px;position:relative;
  box-shadow:0 24px 60px rgba(4,26,20,.34);
}
.hero-card::before{
  content:"";position:absolute;inset:0;border-radius:24px;padding:1px;
  background:linear-gradient(135deg,#0E9F7A,#38D6B4,#C8F04A);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;
}
.hero-card__img{border-radius:17px;overflow:hidden;aspect-ratio:16/10}
.hero-card__img img{width:100%;height:100%;object-fit:cover}
.hero-card__body{padding:18px 16px 14px}
.hero-card__body h2{font-size:16px;font-weight:800;color:var(--brand-900);margin-bottom:12px}
.mini-list{list-style:none;padding:0;margin:0 0 16px}
.mini-list li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--muted);padding:7px 0;border-bottom:1px dashed var(--border)}
.mini-list li:last-child{border-bottom:0}
.mini-list .dot{flex:0 0 auto;width:8px;height:8px;border-radius:50%;background:linear-gradient(135deg,#0E9F7A,#38D6B4);margin-top:8px}
.hero-card .btn{width:100%}

/* ---------- section head ---------- */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:38px}
.section-head__main{max-width:720px}
.section-badge{
  display:inline-flex;align-items:center;gap:8px;padding:5px 14px;border-radius:999px;
  background:var(--grad-soft);border:1px solid var(--border);color:var(--brand-900);
  font-size:12.5px;font-weight:700;letter-spacing:.6px;margin-bottom:14px;
}
.section-badge i{width:6px;height:16px;border-radius:3px;background:var(--grad);display:inline-block}
.section-title{font-size:clamp(1.5rem,3vw,2.15rem);line-height:1.25;font-weight:750;letter-spacing:-.3px;color:var(--brand-900)}
.section-title--light{color:#fff}
.section-desc{font-size:15.5px;color:var(--muted);margin-top:12px}
.section-desc--light{color:rgba(255,255,255,.82)}
.section-link{white-space:nowrap;font-weight:700;font-size:14.5px;color:var(--brand-600)}
.section-link:hover{color:var(--brand-900)}
@media (max-width:767px){
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px}
}

/* ---------- guide layout ---------- */
.guide-layout{align-items:flex-start}
.guide-aside{position:sticky;top:112px}
@media (max-width:1023px){
  .guide-aside{position:static;margin-bottom:26px}
}
.anchor-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px;
  box-shadow:var(--shadow);
}
.anchor-card h2{font-size:15px;font-weight:800;color:var(--brand-900);margin-bottom:14px;display:flex;align-items:center;gap:8px}
.anchor-card h2::before{content:"";width:5px;height:16px;border-radius:3px;background:var(--grad)}
.anchor-list{list-style:none;padding:0;margin:0}
.anchor-list li{margin-bottom:4px}
.anchor-list a{
  display:block;padding:10px 12px;border-radius:12px;font-size:14.2px;font-weight:600;color:var(--muted);
  border-left:3px solid transparent;transition:all .2s ease;
}
.anchor-list a:hover{background:var(--surface);color:var(--brand-900);border-left-color:var(--brand-600)}
.anchor-list a.is-current{background:var(--surface);color:var(--brand-900);border-left-color:var(--brand-600);font-weight:700}
.anchor-note{
  margin-top:18px;padding:14px;border-radius:16px;background:var(--grad-soft);border:1px dashed var(--border);
  font-size:13.5px;color:var(--muted);line-height:1.7;
}

/* ---------- content blocks ---------- */
.block{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow);margin-bottom:26px}
.block:last-child{margin-bottom:0}
.block > h2{font-size:clamp(1.25rem,2.2vw,1.6rem);font-weight:750;color:var(--brand-900);margin-bottom:10px;letter-spacing:-.2px}
.block > h2::before{
  content:"";display:block;width:46px;height:4px;border-radius:3px;background:var(--grad);margin-bottom:14px;
}
.block__lead{color:var(--muted);font-size:15.5px;margin-bottom:24px}
@media (max-width:639px){.block{padding:22px 18px;border-radius:18px}}

.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
@media (max-width:767px){.check-grid{grid-template-columns:1fr}}
.check-item{
  display:flex;gap:14px;padding:18px;border-radius:18px;background:var(--bg);
  border:1px solid var(--border);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.check-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#BFDCCE}
.check-item__ico{
  flex:0 0 auto;width:38px;height:38px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#0E9F7A,#38D6B4);color:#fff;font-weight:800;font-size:15px;
}
.check-item h3{font-size:15.5px;font-weight:700;color:var(--brand-900);margin-bottom:6px}
.check-item p{font-size:14.2px;color:var(--muted);line-height:1.7}

/* steps */
.steps{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
@media (max-width:900px){.steps{grid-template-columns:1fr}}
.step-card{
  position:relative;padding:24px 22px 22px;border-radius:20px;background:#fff;
  border:1px solid var(--border);box-shadow:var(--shadow);
  transition:transform .24s ease,box-shadow .24s ease;
}
.step-card::after{
  content:"";position:absolute;left:22px;right:22px;bottom:0;height:3px;border-radius:3px 3px 0 0;
  background:var(--grad);opacity:0;transition:opacity .24s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.step-card:hover::after{opacity:1}
.step-card__top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.step-card__num{
  width:40px;height:40px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:16px;color:#fff;background:linear-gradient(135deg,#073B2E,#0E9F7A);
  font-variant-numeric:tabular-nums;flex:0 0 auto;
}
.step-card h3{font-size:16.5px;font-weight:750;color:var(--brand-900)}
.step-card p{font-size:14.5px;color:var(--muted);line-height:1.75;margin-bottom:12px}
.step-card ul{font-size:14px;color:var(--muted);padding-left:18px}
.step-card ul li{margin-bottom:4px}
.step-flag{
  display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:700;color:#8A5A00;
  background:rgba(233,162,59,.16);border:1px solid rgba(233,162,59,.36);border-radius:999px;padding:4px 12px;
}
.step-flag--ok{color:#0A6B52;background:rgba(56,214,180,.16);border-color:rgba(56,214,180,.4)}

/* method compare */
.compare{width:100%;border-collapse:separate;border-spacing:0;font-size:14.5px;border:1px solid var(--border);border-radius:18px;overflow:hidden}
.compare thead th{
  background:linear-gradient(135deg,#073B2E,#0E9F7A);color:#fff;font-weight:700;text-align:left;
  padding:14px 18px;font-size:14px;letter-spacing:.3px;
}
.compare tbody td{padding:14px 18px;border-top:1px solid var(--border);color:var(--muted);vertical-align:top}
.compare tbody tr:nth-child(even){background:var(--bg)}
.compare tbody td:first-child{color:var(--brand-900);font-weight:700}
.table-wrap{overflow-x:auto;border-radius:18px}
@media (max-width:639px){.compare{min-width:560px}}

/* note cards */
.note-row{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
@media (max-width:767px){.note-row{grid-template-columns:1fr}}
.note-card{
  border-radius:18px;padding:20px;border:1px solid var(--border);background:var(--bg);
  border-left:4px solid var(--brand-600);
}
.note-card--warn{border-left-color:var(--warn);background:rgba(233,162,59,.08)}
.note-card--danger{border-left-color:var(--danger);background:rgba(216,76,63,.07)}
.note-card h3{font-size:15.5px;font-weight:750;color:var(--brand-900);margin-bottom:8px}
.note-card p{font-size:14.2px;color:var(--muted);line-height:1.75}

/* figures */
.figure{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center;margin-bottom:24px}
.figure:last-child{margin-bottom:0}
.figure--reverse .figure__media{order:2}
.figure__media{border-radius:18px;overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow)}
.figure__media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10;transition:transform .5s ease}
.figure__media:hover img{transform:scale(1.04)}
.figure__body h3{font-size:17px;font-weight:750;color:var(--brand-900);margin-bottom:10px}
.figure__body p{font-size:14.6px;color:var(--muted);line-height:1.8;margin-bottom:10px}
.figure__caption{font-size:13px;color:#8CA099;margin-top:8px}
.tick-list{list-style:none;padding:0;margin:0}
.tick-list li{position:relative;padding-left:26px;font-size:14.4px;color:var(--muted);margin-bottom:8px;line-height:1.7}
.tick-list li::before{
  content:"";position:absolute;left:0;top:7px;width:14px;height:14px;border-radius:50%;
  background:linear-gradient(135deg,#0E9F7A,#38D6B4);
  box-shadow:inset 0 0 0 3px #fff;
}
@media (max-width:767px){
  .figure{grid-template-columns:1fr}
  .figure--reverse .figure__media{order:0}
}

/* troubleshooting list */
.trouble-list{display:grid;gap:14px}
.trouble-item{
  display:grid;grid-template-columns:56px 1fr;gap:18px;padding:20px;border-radius:18px;
  border:1px solid var(--border);background:#fff;transition:box-shadow .22s ease,transform .22s ease;
}
.trouble-item:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px)}
.trouble-item__tag{
  width:56px;height:56px;border-radius:16px;display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:14px;color:var(--brand-900);background:var(--grad-soft);border:1px solid var(--border);
  text-align:center;line-height:1.2;
}
.trouble-item h3{font-size:15.8px;font-weight:750;color:var(--brand-900);margin-bottom:6px}
.trouble-item p{font-size:14.3px;color:var(--muted);line-height:1.75}
@media (max-width:639px){
  .trouble-item{grid-template-columns:1fr;gap:12px}
  .trouble-item__tag{width:52px;height:52px}
}

/* data strip */
.data-strip{
  background:#073B2E;color:#fff;border-radius:var(--radius-lg);padding:34px 32px;
  background-image:linear-gradient(135deg,rgba(7,59,46,.96) 0%,rgba(14,159,122,.92) 60%,rgba(56,214,180,.86) 100%),
    url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-bottom:26px;
}
.data-strip__item{border-left:2px solid rgba(200,240,74,.55);padding-left:16px}
.data-strip__item strong{display:block;font-size:26px;font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:.3px}
.data-strip__item span{display:block;font-size:13.4px;color:rgba(255,255,255,.8);margin-top:4px;line-height:1.6}
@media (max-width:1023px){.data-strip{grid-template-columns:repeat(2,1fr);padding:28px 24px;gap:18px}}
@media (max-width:519px){.data-strip{grid-template-columns:1fr}}

/* CTA banner */
.cta-banner{
  border-radius:var(--radius-lg);padding:48px;
  background-image:linear-gradient(120deg,rgba(7,59,46,.95) 0%,rgba(14,159,122,.88) 52%,rgba(56,214,180,.82) 100%),
    url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:34px;
}
.cta-banner h2{font-size:clamp(1.4rem,2.6vw,1.95rem);font-weight:800;color:#fff;margin-bottom:10px;letter-spacing:-.3px}
.cta-banner p{font-size:15.4px;color:rgba(255,255,255,.86);max-width:600px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex:0 0 auto}
@media (max-width:900px){
  .cta-banner{flex-direction:column;align-items:flex-start;padding:34px 26px;gap:22px}
}

/* footer */
.site-footer{background:#04241C;color:rgba(255,255,255,.72);padding:64px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px;padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.12)}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand__mark{width:40px;height:40px;border-radius:13px}
.footer-brand .brand__text strong{color:#fff;font-size:16.5px;display:block;font-weight:800}
.footer-brand .brand__text em{color:rgba(255,255,255,.6);font-style:normal;font-size:12px;display:block}
.site-footer p{font-size:14.2px;line-height:1.8;color:rgba(255,255,255,.66)}
.footer-col h3{font-size:15px;color:#fff;font-weight:750;margin-bottom:16px}
.footer-col a{display:block;font-size:14.2px;color:rgba(255,255,255,.7);padding:6px 0;transition:color .2s ease,transform .2s ease}
.footer-col a:hover{color:var(--lime);transform:translateX(3px)}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social a{
  width:38px;height:38px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);color:rgba(255,255,255,.82);
}
.footer-social a:hover{background:var(--brand-600);color:#fff;border-color:transparent}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  padding-top:22px;font-size:13.4px;color:rgba(255,255,255,.56);
}
@media (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
}
@media (max-width:639px){
  .site-footer{padding:44px 0 22px}
  .footer-grid{grid-template-columns:1fr;gap:22px}
  .footer-bottom{flex-direction:column;gap:6px}
}

/* roulang page: category2 */
:root{
  --brand-deep:#073B2E;
  --brand-green:#0E9F7A;
  --electric:#38D6B4;
  --lime:#C8F04A;
  --orange:#FF6A2B;
  --ink:#162621;
  --muted:#5E736C;
  --page:#F4F8F5;
  --card:#FFFFFF;
  --surface:#EAF3EE;
  --line:#D8E6DF;
  --danger:#D84C3F;
  --warn:#E9A23B;
  --ring:rgba(56,214,180,.38);
  --grad:linear-gradient(135deg,#073B2E 0%,#0E9F7A 48%,#38D6B4 72%,#C8F04A 100%);
  --grad-soft:linear-gradient(135deg,#0E9F7A 0%,#38D6B4 100%);
  --radius-lg:24px;
  --radius-md:18px;
  --radius-sm:14px;
  --shadow:0 12px 30px rgba(11,30,25,.08);
  --shadow-hover:0 18px 44px rgba(11,30,25,.14);
  --font:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-sm)}
a{color:#0B6E55;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-deep)}
h1,h2,h3,h4{font-family:var(--font);color:var(--brand-deep);margin:0;line-height:1.25}
h1{font-size:clamp(2rem,5vw,3.5rem);line-height:1.15;font-weight:800;letter-spacing:-.5px}
h2{font-size:clamp(1.5rem,3vw,2.25rem);font-weight:750;letter-spacing:-.3px}
h3{font-size:1.28rem;font-weight:700}
p{margin:0 0 12px}
button,input,select{font-family:inherit;font-size:16px}
button{cursor:pointer}
:focus-visible{outline:none;box-shadow:0 0 0 3px var(--ring)}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1440px){.container{max-width:1320px}}

/* ============ 顶部导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s ease}
.site-header.is-stuck{box-shadow:0 8px 24px rgba(11,30,25,.09)}
.brandbar{height:72px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:12px;color:var(--brand-deep)}
.brand__mark{
  width:40px;height:40px;border-radius:12px;background:var(--grad);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-weight:800;font-size:18px;flex:0 0 auto;box-shadow:0 6px 16px rgba(14,159,122,.35)
}
.brand__text{display:flex;flex-direction:column;line-height:1.15}
.brand__text strong{font-size:16px;font-weight:800;color:var(--brand-deep)}
.brand__text em{font-style:normal;font-size:11.5px;color:var(--muted);letter-spacing:.4px}
.brandbar__right{display:flex;align-items:center;gap:10px}
.search-mini{display:flex;align-items:center;gap:8px;background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:0 14px;height:42px}
.search-mini svg{flex:0 0 auto;color:var(--brand-green)}
.search-mini input{border:0;background:transparent;outline:none;height:40px;width:150px;color:var(--ink)}
.search-mini input::placeholder{color:#93A79F}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;border:1px solid transparent;
  font-weight:700;font-size:15.5px;text-decoration:none;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease,background .2s ease,color .2s ease
}
.btn--primary{background:var(--grad-soft);color:#fff;box-shadow:0 10px 24px rgba(14,159,122,.28)}
.btn--primary:hover{filter:brightness(.94);transform:translateY(-2px);color:#fff;box-shadow:0 16px 32px rgba(14,159,122,.34)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{background:#fff;color:var(--brand-deep);border-color:var(--brand-green)}
.btn--ghost:hover{background:#EAF7F2;color:var(--brand-deep);transform:translateY(-2px)}
.btn--light{background:rgba(255,255,255,.16);color:#fff;border-color:rgba(255,255,255,.55);backdrop-filter:blur(4px)}
.btn--light:hover{background:rgba(255,255,255,.28);color:#fff;transform:translateY(-2px)}
.btn--sm{height:42px;padding:0 20px;font-size:14.5px}
.btn--block{width:100%}
.btn--link{background:none;border:0;height:auto;padding:0;color:#0B6E55;font-weight:700;border-radius:0}
.btn--link:hover{color:var(--brand-deep)}
.btn--link .arrow{transition:transform .2s ease;display:inline-block}
.btn--link:hover .arrow{transform:translateX(4px)}
.menu-toggle{
  width:44px;height:44px;border-radius:14px;border:1px solid var(--line);background:#fff;
  display:none;align-items:center;justify-content:center;color:var(--brand-deep)
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--brand-deep);position:relative}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand-deep)}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}

.channel-bar{border-top:1px solid var(--line);background:#fff}
.channel-bar__inner{display:flex;align-items:center;gap:8px;height:52px;overflow-x:auto;scroll-snap-type:x proximity;-ms-overflow-style:none;scrollbar-width:none}
.channel-bar__inner::-webkit-scrollbar{display:none}
.channel{
  position:relative;flex:0 0 auto;scroll-snap-align:start;
  padding:7px 16px;border-radius:999px;font-size:14px;font-weight:600;color:var(--muted);
  border:1px solid transparent;transition:all .2s ease
}
.channel:hover{color:var(--brand-deep);background:var(--surface)}
.channel.is-active{color:#fff;background:var(--grad-soft);box-shadow:0 8px 18px rgba(14,159,122,.26)}
.channel.is-active::after{content:"";position:absolute;left:18px;right:18px;bottom:-14px;height:2px;border-radius:2px;background:var(--grad)}

/* 抽屉 */
.drawer{
  position:fixed;inset:0 0 0 auto;width:min(86vw,340px);background:#fff;z-index:90;
  transform:translateX(102%);transition:transform .28s ease;padding:22px;overflow-y:auto;
  box-shadow:-16px 0 40px rgba(11,30,25,.18)
}
body.drawer-open .drawer{transform:translateX(0)}
body.drawer-open{overflow:hidden}
.drawer__mask{position:fixed;inset:0;background:rgba(7,59,46,.42);opacity:0;pointer-events:none;transition:opacity .28s ease;z-index:80}
body.drawer-open .drawer__mask{opacity:1;pointer-events:auto}
.drawer h3{font-size:15px;color:var(--muted);font-weight:700;margin:20px 0 8px}
.drawer a.drawer-link{display:block;padding:12px 14px;border-radius:14px;color:var(--ink);font-weight:600}
.drawer a.drawer-link:hover{background:var(--surface);color:var(--brand-deep)}
.drawer .btn{margin-top:16px}
.drawer__close{position:absolute;top:16px;right:16px;width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--brand-deep);font-size:20px;line-height:1}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background-image:linear-gradient(115deg,rgba(7,59,46,.94) 0%,rgba(14,159,122,.86) 52%,rgba(56,214,180,.62) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  min-height:640px;display:flex;align-items:center;padding:72px 0
}
.hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,240,74,.30) 0%,rgba(200,240,74,0) 68%)
}
.hero__inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:48px;align-items:center}
.hero__eyebrow{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.34);border-radius:999px;padding:6px 16px;font-size:13.5px;font-weight:600;margin-bottom:20px}
.hero__eyebrow i{width:8px;height:8px;border-radius:50%;background:var(--lime);display:inline-block}
.hero h1{color:#fff;max-width:14em}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,#C8F04A,#38D6B4);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero__sub{margin-top:18px;font-size:17px;line-height:1.85;color:rgba(255,255,255,.9);max-width:36em}
.hero__chips{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0 28px}
.chip{font-size:13.5px;font-weight:600;padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);color:#fff}
.hero__cta{display:flex;flex-wrap:wrap;gap:14px}
.hero__stats{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.stat{
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.26);border-radius:18px;
  padding:12px 18px;min-width:132px;backdrop-filter:blur(4px)
}
.stat b{display:block;font-size:20px;font-weight:800;color:var(--lime);font-variant-numeric:tabular-nums}
.stat span{font-size:13px;color:rgba(255,255,255,.82)}

/* Hero 右侧赛事预告卡 */
.panel{
  background:#fff;color:var(--ink);border-radius:var(--radius-lg);padding:26px;box-shadow:0 24px 56px rgba(4,32,24,.28);
  position:relative
}
.panel::before{content:"";position:absolute;inset:0;border-radius:var(--radius-lg);padding:1px;background:var(--grad);-webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}
.panel__head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
.panel__head h2{font-size:18px;font-weight:800}
.panel__tag{font-size:12.5px;font-weight:700;color:#0B6E55;background:var(--surface);padding:4px 12px;border-radius:999px}
.panel__item{display:flex;gap:14px;padding:14px 0;border-bottom:1px dashed var(--line)}
.panel__item:last-of-type{border-bottom:0}
.date-badge{
  flex:0 0 auto;width:58px;text-align:center;border-radius:14px;background:var(--surface);
  padding:8px 0;color:var(--brand-deep);font-weight:800;line-height:1.1
}
.date-badge b{display:block;font-size:19px;font-variant-numeric:tabular-nums}
.date-badge span{font-size:11.5px;font-weight:600;color:var(--muted)}
.panel__item h3{font-size:15.5px;margin-bottom:4px}
.panel__item p{font-size:13.5px;color:var(--muted);margin:0}
.panel__foot{margin-top:18px}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section--surface{background:var(--surface)}
.section--ink{background:var(--brand-deep);color:#fff}
.section--ink h2,.section--ink h3{color:#fff}
.section--ink .sec-head p{color:rgba(255,255,255,.78)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:38px}
.sec-head__left{max-width:640px}
.sec-label{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--brand-green);letter-spacing:.6px;margin-bottom:12px}
.sec-label::before{content:"";width:26px;height:3px;border-radius:3px;background:var(--grad-soft);display:inline-block}
.sec-head p{color:var(--muted);margin:12px 0 0;font-size:15.5px}

/* ============ 时间线 ============ */
.timeline{position:relative;padding-left:0}
.month-group{margin-bottom:44px}
.month-head{display:flex;align-items:center;gap:14px;margin-bottom:20px}
.month-head h3{font-size:1.25rem;font-weight:800}
.month-head .count{font-size:12.5px;font-weight:700;color:#0B6E55;background:rgba(56,214,180,.18);border-radius:999px;padding:3px 12px}
.month-head::after{content:"";flex:1;height:1px;background:var(--line)}
.tl-list{position:relative;padding-left:26px;border-left:2px solid var(--line)}
.tl-item{position:relative;padding:0 0 26px 22px}
.tl-item::before{content:"";position:absolute;left:-33px;top:8px;width:14px;height:14px;border-radius:50%;background:var(--grad-soft);border:3px solid #fff;box-shadow:0 0 0 2px rgba(56,214,180,.34)}
.tl-item__card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);padding:20px 22px;box-shadow:var(--shadow);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.tl-item__card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--electric)}
.tl-item__top{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-bottom:10px}
.tl-date{font-weight:800;color:var(--brand-deep);font-variant-numeric:tabular-nums;font-size:15px}
.tag{font-size:12.5px;font-weight:700;padding:3px 12px;border-radius:999px;background:var(--surface);color:#0B6E55}
.tag--orange{background:rgba(255,106,43,.14);color:#C24A17}
.tag--lime{background:rgba(200,240,74,.34);color:#4F6B05}
.tag--ghost{background:transparent;border:1px solid var(--line);color:var(--muted)}
.tl-item__card h4{font-size:17px;font-weight:750;color:var(--brand-deep);margin-bottom:6px}
.tl-item__card p{color:var(--muted);font-size:14.5px;margin:0 0 10px}

/* ============ 横向滚动赛事卡 ============ */
.rail-wrap{position:relative}
.rail{
  display:flex;gap:20px;overflow-x:auto;padding:6px 4px 22px;
  scroll-snap-type:x mandatory;-ms-overflow-style:none;scrollbar-width:none
}
.rail::-webkit-scrollbar{display:none}
.rail__item{
  flex:0 0 306px;scroll-snap-align:start;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;display:flex;flex-direction:column
}
.rail__item:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--electric)}
.rail__media{position:relative;aspect-ratio:4/3;overflow:hidden}
.rail__media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .5s ease}
.rail__item:hover .rail__media img{transform:scale(1.06)}
.rail__media .float-tag{position:absolute;left:14px;top:14px;background:rgba(7,59,46,.86);color:#fff;font-size:12.5px;font-weight:700;padding:4px 12px;border-radius:999px}
.rail__body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:8px;flex:1}
.rail__body h3{font-size:16.5px}
.rail__body p{color:var(--muted);font-size:14px;margin:0;flex:1}
.rail__meta{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.rail-hint{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);margin-top:2px}

/* ============ 排行 ============ */
.rank-list{list-style:none;margin:0;padding:0}
.rank-list li{display:flex;align-items:center;gap:16px;padding:16px 0;border-bottom:1px solid var(--line)}
.rank-list li:last-child{border-bottom:0}
.rank-no{
  width:34px;height:34px;flex:0 0 auto;border-radius:12px;display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:15px;background:var(--surface);color:var(--brand-deep);font-variant-numeric:tabular-nums
}
.rank-list li:nth-child(1) .rank-no{background:var(--grad-soft);color:#fff}
.rank-list li:nth-child(2) .rank-no{background:rgba(200,240,74,.5);color:#43610A}
.rank-list li:nth-child(3) .rank-no{background:rgba(255,106,43,.18);color:#B8461A}
.rank-body{flex:1;min-width:0}
.rank-body h4{font-size:15.5px;color:var(--brand-deep);margin-bottom:2px}
.rank-body span{font-size:13.5px;color:var(--muted)}
.rank-num{font-weight:800;color:var(--brand-green);font-variant-numeric:tabular-nums;font-size:15px}

.mini-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;box-shadow:var(--shadow);height:100%}
.mini-card h3{font-size:18px;margin-bottom:10px}
.mini-card p{color:var(--muted);font-size:14.5px}
.mini-list{list-style:none;margin:16px 0 0;padding:0}
.mini-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--muted);padding:7px 0}
.mini-list li::before{content:"";flex:0 0 auto;width:8px;height:8px;border-radius:50%;background:var(--electric);margin-top:8px}

/* ============ FAQ ============ */
.faq{max-width:820px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);margin-bottom:14px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq details[open]{border-color:var(--electric);box-shadow:var(--shadow)}
.faq summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;
  padding:20px 24px;font-weight:700;font-size:17px;color:var(--brand-deep)
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"";width:4px;height:22px;border-radius:3px;background:var(--grad-soft);flex:0 0 auto}
.faq summary::after{content:"+";margin-left:auto;font-size:22px;font-weight:600;color:var(--brand-green);transition:transform .2s ease}
.faq details[open] summary::after{content:"−"}
.faq__body{padding:0 24px 22px 42px;color:var(--muted);font-size:15.5px;line-height:1.8;max-width:720px}

/* ============ CTA / 表单 ============ */
.cta-band{
  background:var(--grad);border-radius:28px;padding:48px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;position:relative;overflow:hidden
}
.cta-band::after{content:"";position:absolute;right:-90px;bottom:-120px;width:320px;height:320px;border-radius:50%;background:rgba(255,255,255,.12)}
.cta-band__text{max-width:560px;position:relative;z-index:1}
.cta-band h2{color:#fff;font-size:clamp(1.4rem,2.4vw,1.9rem)}
.cta-band p{color:rgba(255,255,255,.88);margin:10px 0 0}
.cta-band__form{position:relative;z-index:1;display:flex;gap:12px;align-items:flex-end;flex-wrap:wrap}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:13.5px;font-weight:600;color:rgba(255,255,255,.9)}
.field input,.field select{
  height:48px;border-radius:var(--radius-sm);border:1px solid var(--line);padding:0 16px;background:#fff;color:var(--ink);
  min-width:230px;transition:border-color .2s ease,box-shadow .2s ease
}
.field input::placeholder{color:#9DAFA9}
.field input:focus,.field select:focus{border-color:var(--brand-green);box-shadow:0 0 0 3px var(--ring);outline:none}
.form-note{font-size:13px;color:var(--muted);margin-top:10px;max-width:640px}
.form-note--light{color:rgba(255,255,255,.82)}

/* ============ 面包屑 ============ */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);padding:20px 0 0}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand-deep)}
.crumb span.sep{color:#B7C8C1}

/* ============ 页脚 ============ */
.site-footer{background:#08281F;color:#fff;padding:64px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand__mark{box-shadow:none}
.footer-brand strong{display:block;font-size:16px;font-weight:800;color:#fff}
.footer-brand em{font-style:normal;font-size:12px;color:rgba(255,255,255,.62)}
.site-footer p{color:rgba(255,255,255,.7);font-size:14.5px;max-width:34em}
.footer-col h3{color:#fff;font-size:15.5px;margin-bottom:14px}
.footer-col a{display:block;color:rgba(255,255,255,.72);font-size:14.5px;padding:5px 0}
.footer-col a:hover{color:var(--lime)}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social a{
  width:38px;height:38px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.14)
}
.footer-social a:hover{background:var(--grad-soft);color:#fff}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13.5px;color:rgba(255,255,255,.6)
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .hero__inner{grid-template-columns:1fr;gap:34px}
  .hero{min-height:0;padding:56px 0 64px}
  .section{padding:56px 0}
  .section--tight{padding:46px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .search-mini{display:none}
  .menu-toggle{display:flex}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px}
}
@media (max-width:639px){
  .brandbar{height:56px}
  .brand__mark{width:36px;height:36px;border-radius:11px;font-size:16px}
  .brand__text strong{font-size:14.5px}
  .brand__text em{display:none}
  .hero{padding:40px 0 52px}
  .hero__stats{gap:10px}
  .stat{min-width:calc(50% - 5px);padding:10px 14px}
  .section{padding:44px 0}
  .section--tight{padding:40px 0}
  .cta-band{padding:30px 22px;border-radius:22px}
  .cta-band__form{width:100%}
  .field{width:100%}
  .field input,.field select{min-width:0;width:100%}
  .cta-band__form .btn{width:100%}
  .rail__item{flex:0 0 82%}
  .tl-list{padding-left:16px}
  .tl-item{padding-left:16px}
  .tl-item::before{left:-23px}
  .faq__body{padding:0 20px 20px 30px}
  .footer-grid{grid-template-columns:1fr;gap:22px}
  .footer-bottom{flex-direction:column;gap:6px}
}

/* roulang page: category3 */
:root{
  --brand-deep:#073B2E;
  --brand:#0E9F7A;
  --cyan:#38D6B4;
  --lime:#C8F04A;
  --orange:#FF6A2B;
  --ink:#162621;
  --muted:#5E736C;
  --bg:#F4F8F5;
  --card:#FFFFFF;
  --surface:#EAF3EE;
  --border:#D8E6DF;
  --danger:#D84C3F;
  --warn:#E9A23B;
  --focus:rgba(56,214,180,.38);
  --grad:linear-gradient(135deg,#073B2E 0%,#0E9F7A 48%,#38D6B4 72%,#C8F04A 100%);
  --grad-soft:linear-gradient(135deg,rgba(14,159,122,.14) 0%,rgba(56,214,180,.12) 55%,rgba(200,240,74,.16) 100%);
  --shadow:0 12px 30px rgba(11,30,25,.08);
  --shadow-hover:0 18px 44px rgba(11,30,25,.14);
  --r-lg:24px;
  --r-md:20px;
  --r-sm:14px;
  --num-font:"DIN Alternate","Barlow","Segoe UI",-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16.5px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-sm)}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover,a:focus{color:var(--brand-deep)}
h1,h2,h3,h4{margin:0;line-height:1.25;color:var(--brand-deep);font-weight:750}
p{margin:0 0 14px}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.num{font-family:var(--num-font);font-variant-numeric:tabular-nums;letter-spacing:.02em}

/* ===== foundation overrides ===== */
.button,.button.primary,.button.secondary{
  background:var(--grad);color:#fff;border:0;border-radius:999px;
  font-weight:700;box-shadow:var(--shadow);transition:all .22s ease;
}
.button:hover{filter:brightness(.94)}
.accordion{border:0;background:transparent}
.accordion-item{border:1px solid var(--border);border-radius:var(--r-md);background:#fff;margin-bottom:14px;box-shadow:var(--shadow);overflow:hidden}
.accordion-title{border:0;border-bottom:0;background:#fff;color:var(--brand-deep);font-weight:700;font-size:17px;padding:20px 56px 20px 24px;transition:background .2s ease}
.accordion-title:hover{background:var(--surface)}
.accordion-item.is-active .accordion-title{background:var(--grad-soft)}
.accordion-title::before{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--brand);line-height:1;transition:transform .25s ease
}
.accordion-item.is-active .accordion-title::before{content:"−";transform:translateY(-50%) rotate(180deg)}
.accordion-content{border:0;padding:4px 24px 22px;color:var(--muted);font-size:15.5px;line-height:1.8}
.accordion-content p{max-width:720px}
.callout{border-radius:var(--r-md);border:1px solid var(--border);background:#fff;box-shadow:var(--shadow)}

/* ===== header ===== */
.site-header{position:relative;z-index:80}
.brand-bar{background:#fff;border-bottom:1px solid var(--border)}
.brand-bar__inner{
  display:flex;align-items:center;justify-content:space-between;gap:18px;height:72px;
}
.brand{display:flex;align-items:center;gap:12px;color:var(--brand-deep)}
.brand:hover{color:var(--brand-deep)}
.brand__mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:13px;background:var(--grad);
  color:#fff;font-weight:800;font-size:19px;display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 20px rgba(14,159,122,.32)
}
.brand__text{display:flex;flex-direction:column;line-height:1.25}
.brand__text strong{font-size:17px;font-weight:800;letter-spacing:.2px}
.brand__text em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.4px}
.brand-bar__actions{display:flex;align-items:center;gap:12px}
.search-mini{display:flex;align-items:center;background:var(--surface);border:1px solid var(--border);border-radius:999px;padding:4px 6px 4px 16px;height:42px;transition:border-color .2s,box-shadow .2s}
.search-mini:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px var(--focus)}
.search-mini input{border:0;background:transparent;outline:none;font-size:14px;width:180px;color:var(--ink);height:100%}
.search-mini input::placeholder{color:#94a8a1}
.search-mini button{border:0;background:var(--grad);color:#fff;width:32px;height:32px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center}
.menu-toggle{display:none;width:44px;height:44px;border-radius:13px;border:1px solid var(--border);background:#fff;color:var(--brand-deep);font-size:18px;cursor:pointer;align-items:center;justify-content:center}

/* channel bar */
.channel-bar{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:70;transition:box-shadow .25s ease}
.channel-bar.is-stuck{box-shadow:0 8px 24px rgba(11,30,25,.09)}
.channel-bar__inner{display:flex;align-items:center;gap:8px;height:52px;overflow-x:auto;scroll-snap-type:x proximity;-ms-overflow-style:none;scrollbar-width:none}
.channel-bar__inner::-webkit-scrollbar{display:none}
.channel{
  flex:0 0 auto;scroll-snap-align:start;position:relative;
  padding:8px 16px;font-size:14px;font-weight:600;color:var(--muted);border-radius:999px;
  transition:all .22s ease;white-space:nowrap
}
.channel:hover{color:var(--brand-deep);background:var(--surface)}
.channel.is-active{color:#fff;background:var(--grad);box-shadow:0 8px 18px rgba(14,159,122,.28)}
.channel.is-active::after{display:none}

/* drawer */
.drawer{position:fixed;inset:0;background:rgba(7,35,27,.5);opacity:0;visibility:hidden;transition:all .25s ease;z-index:200}
.drawer.is-open{opacity:1;visibility:visible}
.drawer__panel{position:absolute;top:0;right:0;width:86%;max-width:340px;height:100%;background:#fff;padding:20px;transform:translateX(100%);transition:transform .3s ease;overflow-y:auto}
.drawer.is-open .drawer__panel{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--border);margin-bottom:8px}
.drawer__head span{font-weight:800;color:var(--brand-deep);font-size:16px}
.drawer__close{width:40px;height:40px;border-radius:12px;border:1px solid var(--border);background:#fff;font-size:22px;line-height:1;color:var(--brand-deep);cursor:pointer}
.drawer__nav{display:flex;flex-direction:column;padding:8px 0 18px}
.drawer__nav a{padding:14px 4px;font-size:15.5px;font-weight:600;color:var(--brand-deep);border-bottom:1px dashed var(--border)}
.drawer__nav a.is-active{color:var(--brand)}

/* ===== buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;font-size:15.5px;font-weight:700;
  border:1px solid transparent;cursor:pointer;transition:all .22s ease;white-space:nowrap
}
.btn--primary{background:var(--grad);color:#fff;box-shadow:0 12px 26px rgba(14,159,122,.28)}
.btn--primary:hover{filter:brightness(.94);transform:translateY(-2px);color:#fff;box-shadow:0 16px 34px rgba(14,159,122,.34)}
.btn--ghost{background:#fff;color:var(--brand-deep);border-color:var(--border)}
.btn--ghost:hover{background:var(--surface);transform:translateY(-2px);color:var(--brand-deep)}
.btn--light{background:rgba(255,255,255,.16);color:#fff;border-color:rgba(255,255,255,.4);backdrop-filter:blur(4px)}
.btn--light:hover{background:rgba(255,255,255,.28);color:#fff}
.btn--sm{height:40px;padding:0 18px;font-size:14px}
.btn--block{width:100%}
.btn[disabled],.btn.is-disabled{filter:grayscale(.6);opacity:.6;box-shadow:none;transform:none;cursor:not-allowed}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:15px}
.link-arrow i{transition:transform .22s ease}
.link-arrow:hover i{transform:translateX(4px)}
.btn i{transition:transform .22s ease}
.btn:hover i{transform:translateX(3px)}

/* ===== hero ===== */
.hero-cat{
  position:relative;overflow:hidden;color:#fff;
  background-color:var(--brand-deep);
  background-image:linear-gradient(120deg,rgba(7,59,46,.94) 0%,rgba(7,59,46,.82) 42%,rgba(14,159,122,.72) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
}
.hero-cat::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(circle at 84% 18%,rgba(200,240,74,.20),transparent 42%),
                   radial-gradient(circle at 12% 82%,rgba(56,214,180,.18),transparent 46%);
}
.hero-cat__inner{position:relative;z-index:2;display:grid;grid-template-columns:8fr 4fr;gap:48px;align-items:center;padding:76px 0 84px}
.hero-cat .eyebrow{
  display:inline-flex;align-items:center;gap:8px;background:rgba(200,240,74,.16);
  border:1px solid rgba(200,240,74,.42);color:var(--lime);font-size:13px;font-weight:700;
  padding:7px 14px;border-radius:999px;margin-bottom:20px;letter-spacing:.4px
}
.hero-cat h1{color:#fff;font-size:clamp(2rem,4.4vw,3.15rem);font-weight:800;line-height:1.16;letter-spacing:-.5px;margin-bottom:18px}
.hero-cat h1 span{background:linear-gradient(90deg,#C8F04A,#38D6B4);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-cat__lead{font-size:17px;line-height:1.85;color:rgba(255,255,255,.86);max-width:600px;margin-bottom:26px}
.hero-cat__cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.badges{display:flex;flex-wrap:wrap;gap:12px}
.badge{
  display:flex;align-items:center;gap:10px;background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.22);border-radius:14px;padding:10px 16px;backdrop-filter:blur(6px)
}
.badge b{font-family:var(--num-font);font-size:15px;color:var(--lime);font-weight:700}
.badge em{font-style:normal;font-size:13px;color:rgba(255,255,255,.8)}

/* hero side card */
.service-card{
  background:#fff;border-radius:var(--r-lg);padding:26px;color:var(--ink);
  box-shadow:0 24px 60px rgba(4,26,20,.30);position:relative
}
.service-card::before{
  content:"";position:absolute;inset:-1px;border-radius:calc(var(--r-lg) + 1px);
  background:var(--grad);z-index:-1
}
.service-card h2{font-size:18px;margin-bottom:4px}
.service-card__sub{font-size:13.5px;color:var(--muted);margin-bottom:18px}
.service-list{display:flex;flex-direction:column;gap:10px;margin-bottom:20px}
.service-list li{display:flex;align-items:center;gap:12px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-sm);padding:12px 14px}
.service-list li span.ico{width:34px;height:34px;flex:0 0 34px;border-radius:11px;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px}
.service-list li strong{display:block;font-size:14.5px;color:var(--brand-deep);font-weight:700}
.service-list li em{font-style:normal;font-size:12.5px;color:var(--muted)}
.service-card__foot{text-align:center;font-size:12.5px;color:var(--muted);padding-top:14px;border-top:1px dashed var(--border)}

/* ===== sections ===== */
.section{padding:84px 0}
.section--tight{padding:64px 0}
.section--surface{background:var(--surface)}
.section--white{background:#fff}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap}
.section-head__left{max-width:720px}
.tag{
  display:inline-flex;align-items:center;gap:8px;background:var(--grad-soft);color:var(--brand);
  font-size:12.5px;font-weight:800;letter-spacing:.6px;padding:6px 13px;border-radius:999px;margin-bottom:14px
}
.tag::before{content:"";width:14px;height:3px;border-radius:2px;background:var(--grad)}
.section-head h2{font-size:clamp(1.5rem,2.6vw,2.1rem);font-weight:750;margin-bottom:10px}
.section-head p{color:var(--muted);font-size:15.5px;line-height:1.8;margin:0}

/* alternating rows */
.alt-row{display:grid;grid-template-columns:8fr 4fr;gap:44px;align-items:center}
.alt-row + .alt-row{margin-top:72px}
.alt-row--flip{grid-template-columns:4fr 8fr}
.alt-row--flip .alt-row__media{order:2}
.alt-row--flip .alt-row__body{order:1}
.alt-row__media{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--border);background:#fff}
.alt-row__media img{width:100%;height:340px;object-fit:cover;border-radius:0;transition:transform .5s ease}
.alt-row:hover .alt-row__media img{transform:scale(1.04)}
.alt-row__media .chip{
  position:absolute;left:16px;bottom:16px;background:rgba(7,59,46,.86);color:#fff;
  font-size:12.5px;font-weight:700;padding:7px 14px;border-radius:999px;backdrop-filter:blur(4px)
}
.alt-row__body h3{font-size:1.32rem;margin-bottom:12px;padding-left:16px;position:relative}
.alt-row__body h3::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--grad)}
.alt-row__body p{color:var(--muted);font-size:15.5px}
.feat-list{display:flex;flex-direction:column;gap:10px;margin-top:18px}
.feat-list li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--ink)}
.feat-list li i{color:var(--brand);margin-top:5px;font-size:13px}
.mini-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.mini-badge{font-size:12.5px;font-weight:700;padding:6px 12px;border-radius:999px;background:var(--surface);color:var(--brand-deep);border:1px solid var(--border)}
.mini-badge--lime{background:rgba(200,240,74,.26);border-color:rgba(200,240,74,.6)}
.mini-badge--orange{background:rgba(255,106,43,.12);border-color:rgba(255,106,43,.32);color:#B2430F}

/* spec table */
.table-wrap{border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;background:#fff;box-shadow:var(--shadow)}
table.spec{width:100%;border-collapse:collapse;margin:0;font-size:15px}
table.spec thead th{background:linear-gradient(135deg,#073B2E 0%,#0E9F7A 100%);color:#fff;text-align:left;padding:16px 20px;font-weight:700;font-size:14.5px;letter-spacing:.3px;border:0}
table.spec tbody td{padding:16px 20px;border:0;border-bottom:1px solid var(--border);color:var(--ink);vertical-align:middle}
table.spec tbody tr:nth-child(even){background:#F8FCFA}
table.spec tbody tr:hover{background:rgba(56,214,180,.08)}
table.spec tbody tr:last-child td{border-bottom:0}
table.spec td.fname{font-weight:700;color:var(--brand-deep)}
.state{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:700;padding:5px 12px;border-radius:999px;background:rgba(14,159,122,.12);color:#0B7A5D}
.state::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand)}
.state--warn{background:rgba(233,162,59,.16);color:#9A6612}
.state--warn::before{background:var(--warn)}
.table-note{font-size:13px;color:var(--muted);margin-top:14px}

/* device cards */
.device-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.device-card{background:#fff;border:1px solid var(--border);border-radius:var(--r-md);padding:26px 24px;box-shadow:var(--shadow);transition:all .25s ease;position:relative;overflow:hidden}
.device-card::after{content:"";position:absolute;left:0;top:0;right:0;height:3px;background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .3s ease}
.device-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.device-card:hover::after{transform:scaleX(1)}
.device-card .ico{width:46px;height:46px;border-radius:14px;background:var(--grad-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:19px;margin-bottom:16px}
.device-card h3{font-size:17px;margin-bottom:8px}
.device-card p{font-size:14.5px;color:var(--muted);margin-bottom:14px}
.device-card .meta{font-size:12.5px;color:var(--muted);display:flex;gap:8px;flex-wrap:wrap}
.device-card .meta span{background:var(--surface);border:1px solid var(--border);border-radius:999px;padding:4px 10px}

/* stat strip */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:36px}
.stat{background:#fff;border:1px solid var(--border);border-radius:var(--r-md);padding:22px;text-align:center;box-shadow:var(--shadow)}
.stat b{display:block;font-family:var(--num-font);font-size:24px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:6px}
.stat em{font-style:normal;font-size:13.5px;color:var(--muted)}

/* faq */
.faq-wrap{max-width:860px}
.faq-intro{color:var(--muted);font-size:15.5px;margin-bottom:26px}

/* cta */
.cta-band{
  background:var(--grad);border-radius:28px;padding:48px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:0 24px 54px rgba(11,60,48,.26);position:relative;overflow:hidden
}
.cta-band::after{content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;background:rgba(255,255,255,.10)}
.cta-band__text{max-width:620px;position:relative;z-index:2}
.cta-band h2{color:#fff;font-size:clamp(1.5rem,2.6vw,2rem);margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.88);font-size:15.5px;margin:0}
.cta-band__actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2}

/* footer */
.site-footer{background:#07271E;color:rgba(255,255,255,.82);padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand__mark{width:40px;height:40px;border-radius:13px}
.footer-brand strong{display:block;font-size:16.5px;color:#fff;font-weight:800}
.footer-brand em{font-style:normal;font-size:12px;color:rgba(255,255,255,.6)}
.site-footer p{font-size:14px;color:rgba(255,255,255,.66);line-height:1.8}
.site-footer .footer-col h3{color:#fff;font-size:15px;margin-bottom:16px;font-weight:700}
.site-footer .footer-col a{display:block;font-size:14px;color:rgba(255,255,255,.68);padding:6px 0;transition:color .2s,padding-left .2s}
.site-footer .footer-col a:hover{color:var(--lime);padding-left:4px}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social a{width:38px;height:38px;border-radius:12px;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.8)}
.footer-social a:hover{background:var(--grad);color:#fff}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.52)
}
.site-footer .btn--primary{background:var(--grad)}

/* responsive */
@media screen and (max-width:1023px){
  .hero-cat__inner{grid-template-columns:1fr;gap:34px;padding:56px 0 62px}
  .alt-row,.alt-row--flip{grid-template-columns:1fr;gap:26px}
  .alt-row--flip .alt-row__media,.alt-row--flip .alt-row__body{order:0}
  .device-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .section{padding:56px 0}
  .alt-row__media img{height:280px}
}
@media screen and (max-width:1023px){
  .search-mini{display:none}
}
@media screen and (max-width:767px){
  .menu-toggle{display:flex}
  .brand-bar__inner{height:56px}
  .brand__text strong{font-size:15px}
  .brand__text em{font-size:11px}
  .channel-bar__inner{height:48px}
  .brand-bar__actions .btn{display:none}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .cta-band{padding:32px 24px;border-radius:22px}
  .table-wrap{border-radius:var(--r-md);overflow-x:auto}
  table.spec{min-width:660px}
}
@media screen and (max-width:639px){
  body{font-size:16px}
  .section{padding:42px 0}
  .hero-cat__inner{padding:44px 0 50px}
  .hero-cat h1{font-size:1.75rem}
  .hero-cat__lead{font-size:15.5px}
  .badges{gap:8px}
  .badge{width:100%}
  .device-grid{grid-template-columns:1fr}
  .alt-row__media img{height:220px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;gap:8px}
  .cta-band__actions{width:100%}
  .cta-band__actions .btn{width:100%}
  .section-head{margin-bottom:28px}
}

/* roulang page: category4 */
:root{
  --brand-deep:#073B2E;
  --brand:#0E9F7A;
  --electric:#38D6B4;
  --lime:#C8F04A;
  --orange:#FF6A2B;
  --ink:#162621;
  --muted:#5E736C;
  --page:#F4F8F5;
  --card:#FFFFFF;
  --surface:#EAF3EE;
  --line:#D8E6DF;
  --danger:#D84C3F;
  --warn:#E9A23B;
  --focus:rgba(56,214,180,.38);
  --grad:linear-gradient(135deg,#073B2E 0%,#0E9F7A 48%,#38D6B4 72%,#C8F04A 100%);
  --grad-soft:linear-gradient(135deg,rgba(14,159,122,.14) 0%,rgba(200,240,74,.18) 100%);
  --r-xl:28px;
  --r-lg:24px;
  --r-md:20px;
  --r-sm:14px;
  --shadow:0 12px 30px rgba(11,30,25,.08);
  --shadow-hover:0 18px 44px rgba(11,30,25,.14);
  --font-cn:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.75;
  color:var(--ink);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--brand-deep);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--brand-deep);}
p{margin:0 0 14px;}
ul,ol{margin:0;padding:0;list-style:none;}
.num{font-variant-numeric:tabular-nums;}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- Foundation 覆盖 ---------- */
.button,.button.primary,.button.secondary{
  background:var(--brand);
  color:#fff;
  border-radius:999px;
  font-family:var(--font-cn);
  font-weight:700;
}
.button:hover,.button:focus{background:var(--brand-deep);color:#fff;}
.grid-x{display:flex;flex-wrap:wrap;}
.grid-x > .cell{min-width:0;}
.grid-margin-x{margin-left:-12px;margin-right:-12px;}
.grid-margin-x > .cell{margin-left:12px;margin-right:12px;}
.small-12{width:calc(100% - 24px);}
@media screen and (min-width:640px){
  .medium-6{width:calc(50% - 24px);}
  .medium-12{width:calc(100% - 24px);}
}
@media screen and (min-width:1024px){
  .large-5{width:calc(41.6667% - 24px);}
  .large-6{width:calc(50% - 24px);}
  .large-7{width:calc(58.3333% - 24px);}
  .large-8{width:calc(66.6667% - 24px);}
  .large-4{width:calc(33.3333% - 24px);}
  .large-12{width:calc(100% - 24px);}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;
  border-radius:999px;border:1px solid transparent;
  font-size:15.5px;font-weight:700;letter-spacing:.2px;
  cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  text-align:center;
}
.btn--primary{
  background:linear-gradient(135deg,#0E9F7A 0%,#38D6B4 100%);
  color:#fff;box-shadow:0 10px 24px rgba(14,159,122,.26);
}
.btn--primary:hover{transform:translateY(-2px);filter:brightness(.94);color:#fff;box-shadow:0 14px 30px rgba(14,159,122,.32);}
.btn--ghost{background:#fff;color:var(--brand-deep);border-color:var(--line);}
.btn--ghost:hover{background:var(--surface);border-color:var(--brand);color:var(--brand-deep);transform:translateY(-2px);}
.btn--light{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.5);}
.btn--light:hover{background:rgba(255,255,255,.24);color:#fff;transform:translateY(-2px);}
.btn--sm{min-height:42px;padding:0 20px;font-size:14.5px;}
.btn--block{width:100%;}
.btn--text{padding:0;min-height:auto;background:none;color:var(--brand);font-weight:700;}
.btn--text:hover{color:var(--brand-deep);}
.btn--text .arrow{display:inline-block;transition:transform .2s ease;}
.btn--text:hover .arrow{transform:translateX(4px);}

/* ---------- 品牌行 ---------- */
.site-header{position:sticky;top:0;z-index:80;background:#fff;box-shadow:0 1px 0 var(--line);}
.site-header.is-scrolled{box-shadow:0 10px 26px rgba(11,30,25,.1);}
.brand-bar{border-bottom:1px solid var(--line);background:#fff;}
.brand-bar__inner{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:72px;}
.brand{display:flex;align-items:center;gap:12px;color:var(--brand-deep);}
.brand__mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:13px;
  background:var(--grad);color:#fff;font-weight:800;font-size:19px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px rgba(14,159,122,.28);
}
.brand__text{display:flex;flex-direction:column;line-height:1.2;}
.brand__text strong{font-size:16.5px;font-weight:800;letter-spacing:.2px;}
.brand__text em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.4px;}
.brand-bar__tools{display:flex;align-items:center;gap:10px;}
.icon-btn{
  width:42px;height:42px;border-radius:50%;border:1px solid var(--line);background:#fff;
  display:inline-flex;align-items:center;justify-content:center;color:var(--brand-deep);
  cursor:pointer;transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.icon-btn:hover{background:var(--surface);border-color:var(--brand);transform:translateY(-2px);}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:14px;border:1px solid var(--line);
  background:#fff;cursor:pointer;padding:0;flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.menu-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:var(--brand-deep);}

/* ---------- 频道行 ---------- */
.channel-bar{background:#fff;border-bottom:1px solid var(--line);}
.channel-bar__inner{display:flex;align-items:center;gap:8px;height:52px;overflow-x:auto;scrollbar-width:none;}
.channel-bar__inner::-webkit-scrollbar{display:none;}
.channel{
  flex:0 0 auto;display:inline-flex;align-items:center;height:34px;padding:0 16px;
  border-radius:999px;font-size:14px;font-weight:700;color:var(--muted);
  border:1px solid transparent;transition:all .2s ease;white-space:nowrap;
}
.channel:hover{color:var(--brand-deep);background:var(--surface);}
.channel.is-active{
  color:#fff;background:linear-gradient(135deg,#0E9F7A 0%,#38D6B4 100%);
  box-shadow:0 8px 18px rgba(14,159,122,.26);
}

/* ---------- 抽屉 ---------- */
.drawer{position:fixed;inset:0;z-index:120;display:none;}
.drawer.is-open{display:block;}
.drawer__mask{position:absolute;inset:0;background:rgba(7,59,46,.45);}
.drawer__panel{
  position:absolute;top:0;right:0;width:min(86vw,340px);height:100%;background:#fff;
  padding:22px 20px 30px;overflow-y:auto;box-shadow:-16px 0 40px rgba(11,30,25,.18);
  display:flex;flex-direction:column;gap:16px;
}
.drawer__head{display:flex;align-items:center;justify-content:space-between;}
.drawer__head strong{font-size:16px;color:var(--brand-deep);}
.drawer nav{display:flex;flex-direction:column;gap:6px;}
.drawer nav a{
  padding:12px 14px;border-radius:14px;font-size:15px;font-weight:700;color:var(--brand-deep);
  background:var(--page);border:1px solid var(--line);
}
.drawer nav a.is-active{background:var(--grad);color:#fff;border-color:transparent;}
.drawer__note{font-size:13.5px;color:var(--muted);line-height:1.7;}

/* ---------- Hero ---------- */
.hero-secure{
  position:relative;overflow:hidden;color:#fff;
  background-image:linear-gradient(135deg,rgba(7,59,46,.95) 0%,rgba(14,159,122,.9) 50%,rgba(56,214,180,.78) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  padding:56px 0 68px;
}
.hero-secure::after{
  content:"";position:absolute;right:-120px;bottom:-140px;width:420px;height:420px;border-radius:50%;
  border:1px dashed rgba(200,240,74,.35);opacity:.7;pointer-events:none;
}
.hero-secure__inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:32px;align-items:flex-start;}
.hero-copy{flex:1 1 420px;min-width:0;}
.crumbs{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13.5px;color:rgba(255,255,255,.78);margin-bottom:18px;}
.crumbs a{color:rgba(255,255,255,.86);}
.crumbs a:hover{color:#fff;text-decoration:underline;}
.crumbs span.sep{opacity:.6;}
.hero-copy h1{
  color:#fff;font-size:clamp(2rem,4.2vw,3rem);font-weight:800;line-height:1.18;letter-spacing:.5px;
  margin-bottom:16px;
}
.hero-copy h1 .hl{background:linear-gradient(135deg,#C8F04A 0%,#38D6B4 100%);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-copy p.lead{font-size:17px;line-height:1.85;color:rgba(255,255,255,.9);max-width:620px;margin-bottom:24px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;}
.badge-chip{
  display:inline-flex;align-items:center;gap:8px;padding:9px 15px;border-radius:999px;
  background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.32);
  font-size:13.5px;font-weight:700;color:#fff;backdrop-filter:blur(2px);
}
.badge-chip .dot{width:8px;height:8px;border-radius:50%;background:var(--lime);flex:0 0 8px;}
.badge-chip.alt .dot{background:var(--electric);}
.badge-chip.warm .dot{background:var(--orange);}

.hero-search-card{
  flex:1 1 340px;min-width:0;background:#fff;border-radius:var(--r-lg);padding:26px 24px;
  box-shadow:0 24px 60px rgba(4,32,24,.28);
  border:1px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad);
  background-origin:border-box;background-clip:padding-box,border-box;
  color:var(--ink);
}
.hero-search-card h2{font-size:19px;margin-bottom:6px;}
.hero-search-card p.note{font-size:13.5px;color:var(--muted);margin-bottom:16px;}
.search-box{
  display:flex;align-items:center;gap:10px;border:1px solid var(--line);border-radius:var(--r-sm);
  padding:0 14px;height:52px;background:var(--page);transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.search-box:focus-within{border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px var(--focus);}
.search-box svg{flex:0 0 18px;color:var(--brand);}
.search-box input{
  flex:1 1 auto;border:0;background:transparent;height:50px;font-size:15px;color:var(--ink);outline:none;
  font-family:var(--font-cn);
}
.search-box input::placeholder{color:#93A8A0;}
.hot-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.hot-tag{
  border:1px solid var(--line);background:#fff;color:var(--muted);font-size:13px;font-weight:700;
  padding:6px 12px;border-radius:999px;cursor:pointer;transition:all .2s ease;
}
.hot-tag:hover{border-color:var(--brand);color:var(--brand-deep);background:var(--surface);}
.hero-search-card .security-mini{display:flex;gap:10px;margin-top:20px;padding-top:18px;border-top:1px dashed var(--line);}
.hero-search-card .security-mini div{flex:1 1 0;text-align:center;}
.hero-search-card .security-mini strong{display:block;font-size:17px;color:var(--brand-deep);}
.hero-search-card .security-mini span{font-size:12.5px;color:var(--muted);}

/* ---------- 通用板块 ---------- */
.section{padding:76px 0;}
.section--tight{padding:56px 0;}
.section--surface{background:var(--surface);}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:34px;}
.section-head__left{max-width:680px;}
.kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:800;letter-spacing:1px;
  color:var(--brand);text-transform:none;margin-bottom:12px;
}
.kicker::before{content:"";width:26px;height:3px;border-radius:3px;background:var(--grad);display:block;}
.section-head h2{font-size:clamp(1.5rem,2.6vw,2.15rem);font-weight:750;margin-bottom:10px;}
.section-head p{color:var(--muted);font-size:15.5px;margin:0;max-width:640px;}
.section-head .btn--text{white-space:nowrap;}

/* ---------- 安全机制卡 ---------- */
.mech-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 24px;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  height:100%;overflow:hidden;
}
.mech-card::before{
  content:"";position:absolute;left:0;top:0;height:4px;width:100%;
  background:var(--grad);opacity:0;transition:opacity .25s ease;
}
.mech-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(14,159,122,.4);}
.mech-card:hover::before{opacity:1;}
.mech-card__top{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.mech-icon{
  width:46px;height:46px;border-radius:14px;background:var(--grad-soft);
  display:flex;align-items:center;justify-content:center;color:var(--brand-deep);flex:0 0 46px;
}
.mech-card h3{font-size:19px;}
.mech-card p{color:var(--muted);font-size:15px;margin:0;}
.mech-list{margin-top:14px;display:flex;flex-direction:column;gap:8px;}
.mech-list li{display:flex;gap:9px;font-size:14.5px;color:var(--muted);}
.mech-list li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--electric);margin-top:9px;flex:0 0 6px;}
.mech-card--feature{background:linear-gradient(180deg,#fff 0%,#F7FCFA 100%);}
.mech-media{border-radius:var(--r-sm);overflow:hidden;margin-bottom:16px;}
.mech-media img{width:100%;height:168px;object-fit:cover;transition:transform .4s ease;}
.mech-card:hover .mech-media img{transform:scale(1.04);}

/* ---------- FAQ ---------- */
.faq-toolbar{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:16px 18px;margin-bottom:26px;
  box-shadow:var(--shadow);
}
.faq-toolbar .search-box{flex:1 1 320px;height:48px;background:#fff;}
.faq-toolbar__count{font-size:14px;color:var(--muted);}
.faq-toolbar__count b{color:var(--brand-deep);font-size:16px;}
.faq-group{margin-bottom:34px;}
.faq-group.is-hidden{display:none;}
.faq-group__title{
  display:flex;align-items:center;gap:10px;font-size:16px;color:var(--brand-deep);
  padding-bottom:12px;margin-bottom:14px;border-bottom:1px solid var(--line);
}
.faq-group__title span.tag{
  font-size:12px;font-weight:800;color:#fff;background:linear-gradient(135deg,#0E9F7A,#38D6B4);
  padding:3px 10px;border-radius:999px;
}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);
  transition:border-color .2s ease,box-shadow .2s ease;
  overflow:hidden;
}
.faq-item:hover{border-color:rgba(14,159,122,.45);}
.faq-item.is-open{border-color:var(--brand);box-shadow:0 12px 30px rgba(11,30,25,.08);}
.faq-item.is-hidden{display:none;}
.faq-item__q{margin:0;font-size:16.5px;}
.faq-trigger{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:none;border:0;padding:18px 20px;text-align:left;cursor:pointer;
  font-size:16.5px;font-weight:700;color:var(--brand-deep);line-height:1.55;
}
.faq-trigger span{flex:1 1 auto;}
.faq-icon{
  position:relative;width:24px;height:24px;border-radius:50%;background:var(--surface);flex:0 0 24px;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:11px;height:2px;}
.faq-icon::after{width:2px;height:11px;transition:transform .25s ease,opacity .25s ease;}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-panel{padding:0 20px 20px;color:var(--muted);font-size:15.5px;line-height:1.85;border-top:1px dashed transparent;}
.faq-panel p:last-child{margin-bottom:0;}
.faq-panel ul{margin:8px 0 0;display:flex;flex-direction:column;gap:6px;}
.faq-panel ul li{display:flex;gap:8px;}
.faq-panel ul li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--electric);margin-top:9px;flex:0 0 6px;}
.faq-empty{
  display:none;background:#fff;border:1px dashed var(--line);border-radius:var(--r-md);
  padding:38px 20px;text-align:center;color:var(--muted);
}
.faq-empty.is-show{display:block;}
.faq-empty strong{display:block;color:var(--brand-deep);font-size:16px;margin-bottom:6px;}

/* ---------- 习惯双卡 ---------- */
.habit-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px 26px;box-shadow:var(--shadow);height:100%;
}
.habit-card h3{display:flex;align-items:center;gap:10px;font-size:20px;margin-bottom:8px;}
.habit-card .hint{font-size:14px;color:var(--muted);margin-bottom:18px;}
.habit-list{display:flex;flex-direction:column;gap:12px;}
.habit-list li{display:flex;gap:12px;font-size:15px;color:var(--ink);}
.habit-list li .mark{
  width:24px;height:24px;flex:0 0 24px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:800;color:#fff;
}
.habit-card--do .mark{background:linear-gradient(135deg,#0E9F7A,#38D6B4);}
.habit-card--avoid .mark{background:linear-gradient(135deg,#E9A23B,#FF6A2B);}
.habit-card--avoid{background:linear-gradient(180deg,#fff 0%,#FFF9F4 100%);}

/* ---------- 排查步骤 ---------- */
.step-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px 22px;height:100%;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.step-num{
  width:42px;height:42px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:17px;color:var(--brand-deep);background:var(--surface);margin-bottom:14px;
}
.step-card:nth-child(1) .step-num{background:rgba(14,159,122,.14);}
.step-card h3{font-size:18px;margin-bottom:8px;}
.step-card p{font-size:14.8px;color:var(--muted);margin:0;}

/* ---------- 联系区 ---------- */
.contact-wrap{display:flex;flex-wrap:wrap;gap:28px;align-items:flex-start;}
.form-card{
  flex:1 1 420px;min-width:0;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px 26px;box-shadow:var(--shadow);
}
.form-card h3{font-size:20px;margin-bottom:6px;}
.form-card .hint{font-size:14px;color:var(--muted);margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:14px;font-weight:700;color:var(--brand-deep);margin-bottom:7px;}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--page);
  font-family:var(--font-cn);font-size:15px;color:var(--ink);padding:0 14px;height:48px;outline:none;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{height:auto;padding:12px 14px;min-height:112px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px var(--focus);}
.field .tip{font-size:12.8px;color:var(--muted);margin-top:6px;}
.form-note{font-size:13px;color:var(--muted);margin-top:14px;}
.form-msg{margin-top:12px;font-size:14px;font-weight:700;color:var(--brand);display:none;}
.form-msg.is-show{display:block;}

.help-col{flex:1 1 300px;min-width:0;display:flex;flex-direction:column;gap:18px;}
.help-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--shadow);
}
.help-card h3{font-size:18px;margin-bottom:12px;}
.help-card p{font-size:14.5px;color:var(--muted);margin-bottom:0;}
.help-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;}
.help-meta span{
  font-size:12.5px;font-weight:700;color:var(--brand-deep);background:var(--surface);
  padding:6px 12px;border-radius:999px;
}
.help-card--accent{
  background:linear-gradient(135deg,#073B2E 0%,#0E9F7A 60%,#38D6B4 100%);
  color:#fff;border-color:transparent;
}
.help-card--accent h3{color:#fff;}
.help-card--accent p{color:rgba(255,255,255,.88);}
.help-card--accent .btn--light{margin-top:16px;}
.help-media{border-radius:var(--r-sm);overflow:hidden;}
.help-media img{width:100%;height:172px;object-fit:cover;}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(135deg,#073B2E 0%,#0E9F7A 48%,#38D6B4 78%,#C8F04A 100%);
  border-radius:var(--r-xl);padding:48px 40px;color:#fff;
  display:flex;flex-wrap:wrap;gap:26px;align-items:center;justify-content:space-between;
  box-shadow:0 20px 50px rgba(11,30,25,.16);position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-70px;width:280px;height:280px;border-radius:50%;
  border:1px solid rgba(255,255,255,.28);
}
.cta-band__text{max-width:620px;position:relative;z-index:2;}
.cta-band h2{color:#fff;font-size:clamp(1.4rem,2.4vw,2rem);margin-bottom:10px;}
.cta-band p{color:rgba(255,255,255,.9);font-size:15.5px;margin:0;}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:2;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-deep);color:rgba(255,255,255,.82);padding:60px 0 0;margin-top:0;}
.footer-grid{display:flex;flex-wrap:wrap;gap:34px;padding-bottom:40px;}
.footer-grid > div{flex:1 1 220px;min-width:0;}
.footer-grid > div:first-child{flex:1 1 300px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand .brand__mark{box-shadow:none;}
.footer-brand .brand__text strong{color:#fff;font-size:16.5px;}
.footer-brand .brand__text em{color:rgba(255,255,255,.62);}
.site-footer p{font-size:14px;color:rgba(255,255,255,.68);line-height:1.8;}
.footer-col h3{color:#fff;font-size:15px;margin-bottom:14px;}
.footer-col a{display:block;font-size:14px;color:rgba(255,255,255,.72);padding:5px 0;}
.footer-col a:hover{color:var(--lime);}
.footer-social{display:flex;gap:10px;margin-top:16px;}
.footer-social a{
  width:38px;height:38px;border-radius:12px;border:1px solid rgba(255,255,255,.22);
  display:inline-flex;align-items:center;justify-content:center;color:#fff;background:rgba(255,255,255,.06);
  transition:background .2s ease,transform .2s ease;
}
.footer-social a:hover{background:rgba(200,240,74,.18);transform:translateY(-2px);color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .section{padding:56px 0;}
  .hero-secure{padding:44px 0 56px;}
  .menu-toggle{display:flex;}
  .brand-bar__tools .nav-cta{display:none;}
}
@media screen and (max-width:767px){
  .container{padding:0 18px;}
  body{font-size:16px;}
  .section{padding:44px 0;}
  .hero-secure{padding:36px 0 46px;}
  .hero-copy h1{font-size:clamp(1.7rem,7vw,2.2rem);}
  .hero-search-card{padding:22px 18px;}
  .cta-band{padding:32px 22px;border-radius:var(--r-lg);}
  .footer-grid{gap:26px;}
  .faq-trigger{font-size:15.5px;padding:16px 16px;}
  .faq-panel{padding:0 16px 18px;}
}
@media screen and (max-width:520px){
  .brand__text strong{font-size:15px;}
  .brand__text em{font-size:11px;}
  .hero-actions .btn{width:100%;}
  .cta-band__actions .btn{width:100%;}
  .faq-toolbar{padding:14px;}
}
@media screen and (min-width:1440px){
  .container{max-width:1320px;}
}