/* roulang page: index */
:root{
  --brand-900:#0B3A32;--brand-700:#14584E;--brand-500:#1E8A6E;--brand-300:#63C6A4;--brand-100:#DCF1E7;
  --accent:#F07A46;--accent-600:#D9612F;--accent-100:#FDE6D9;
  --lime:#D6EC5B;
  --ink:#14201D;--ink-2:#4C5A56;--ink-3:#7B8A85;
  --line:#E2E7E1;--bg:#F5F7F2;--surface:#FFFFFF;--surface-2:#EEF3EC;
  --g-brand:linear-gradient(118deg,#0B3A32 0%,#1E8A6E 58%,#63C6A4 100%);
  --g-warm:linear-gradient(118deg,#F07A46 0%,#F7B473 100%);
  --g-soft:linear-gradient(160deg,#FFFFFF 0%,#EEF3EC 100%);
  --f-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --sh-1:0 2px 8px rgba(11,58,50,.05);
  --sh-2:0 8px 24px rgba(11,58,50,.08);
  --sh-3:0 18px 44px rgba(11,58,50,.14);
  --r-card:22px;--r-big:28px;--r-sm:14px;
  --section-gap:88px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:132px}
body{margin:0;font-family:var(--f-sans);font-size:16px;line-height:1.8;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--accent-600)}
button,input,textarea,select{font-family:inherit;font-size:inherit}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:6px}
.container{max-width:1200px;padding:0 24px;margin:0 auto}
.section{padding:var(--section-gap) 0 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.sec-title{position:relative;font-size:30px;line-height:1.35;font-weight:700;margin:0;color:var(--ink);letter-spacing:-.3px}
.sec-title::before{content:"";display:block;width:28px;height:6px;border-radius:3px;background:var(--lime);margin-bottom:14px}
.sec-sub{margin:10px 0 0;font-size:15px;line-height:1.8;color:var(--ink-2);max-width:640px}
/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(245,247,242,.82);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.topbar{display:flex;align-items:center;gap:24px;height:68px;transition:height .22s var(--ease),box-shadow .22s var(--ease)}
.site-header.is-compact .topbar{height:56px;box-shadow:var(--sh-1)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:38px;height:38px;border-radius:11px;background:var(--g-brand);color:#fff;display:flex;align-items:center;justify-content:center;font-family:"Inter",var(--f-sans);font-weight:700;font-size:15px;letter-spacing:.5px;box-shadow:var(--sh-1)}
.brand-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-.2px;white-space:nowrap}
.brand-text span{color:var(--brand-500)}
.topbar-search{flex:1 1 320px;max-width:320px;margin-left:12px}
.search-form{display:flex;align-items:center;background:var(--surface);border:1.5px solid var(--line);border-radius:999px;padding:4px 4px 4px 18px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.search-form:focus-within,.search-form:hover{border-color:var(--brand-500);box-shadow:0 0 0 3px var(--brand-100)}
.search-form input{flex:1;border:0;outline:0;background:transparent;height:36px;font-size:14px;color:var(--ink)}
.search-form input::placeholder{color:var(--ink-3)}
.search-form button{border:0;background:var(--brand-700);color:#fff;font-size:14px;font-weight:600;padding:7px 18px;border-radius:999px;cursor:pointer;transition:background .2s var(--ease)}
.search-form button:hover{background:var(--brand-500)}
.topbar-actions{display:flex;align-items:center;gap:14px;margin-left:auto;flex:0 0 auto}
.link-login{font-size:15px;font-weight:600;color:var(--brand-700)}
.btn-main{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:16px 32px;border-radius:999px;border:0;background:var(--g-warm);color:#fff;font-size:15px;font-weight:700;cursor:pointer;box-shadow:var(--sh-1);transition:transform .22s var(--ease),box-shadow .22s var(--ease)}
.btn-main:hover{transform:translateY(-2px);box-shadow:var(--sh-3);color:#fff}
.btn-main:active{transform:translateY(0)}
.btn-main.sm{padding:10px 22px;font-size:14px}
.btn-outline{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 30px;border-radius:999px;border:1.5px solid var(--brand-700);background:transparent;color:var(--brand-700);font-size:15px;font-weight:700;cursor:pointer;transition:background .2s var(--ease),transform .2s var(--ease)}
.btn-outline:hover{background:var(--brand-100);color:var(--brand-700);transform:translateY(-2px)}
.btn-outline.on-dark{border-color:rgba(255,255,255,.6);color:#fff}
.btn-outline.on-dark:hover{background:rgba(255,255,255,.14);color:#fff}
.btn-link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-700)}
.btn-link-arrow span{transition:transform .2s var(--ease)}
.btn-link-arrow:hover{color:var(--accent-600)}
.btn-link-arrow:hover span{transform:translateX(6px)}
/* ---------- nav tabs ---------- */
.navtabs{border-top:1px solid var(--line);background:rgba(245,247,242,.86)}
.navtabs-inner{display:flex;align-items:center;gap:10px;height:48px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.navtabs-inner::-webkit-scrollbar{display:none}
.navtabs a{flex:0 0 auto;height:34px;display:inline-flex;align-items:center;padding:0 18px;border-radius:999px;font-size:15px;font-weight:600;color:var(--ink-2);transition:background .2s var(--ease),color .2s var(--ease)}
.navtabs a:hover{background:var(--brand-100);color:var(--brand-700)}
.navtabs a.active{background:var(--brand-700);color:#fff}
/* ---------- hero ---------- */
.hero{margin-top:28px}
.hero-panel{position:relative;overflow:hidden;border-radius:var(--r-big);background:var(--g-brand);color:#fff;padding:56px;display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:center;box-shadow:var(--sh-2)}
.hero-panel::after{content:"";position:absolute;inset:0;pointer-events:none;background-image:radial-gradient(rgba(255,255,255,.9) 1px,transparent 1px);background-size:22px 22px;opacity:.06}
.hero-copy{position:relative;z-index:2}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.14);font-size:13px;font-weight:600;letter-spacing:.4px;margin-bottom:20px}
.hero-eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--lime);display:inline-block}
.hero-copy h1{margin:0;font-size:44px;line-height:1.25;font-weight:700;letter-spacing:-.5px;color:#fff}
.hero-copy p.sub{margin:14px 0 0;font-size:17px;line-height:1.7;color:rgba(255,255,255,.84);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-actions .btn-outline{border-color:rgba(255,255,255,.55);color:#fff}
.hero-actions .btn-outline:hover{background:rgba(255,255,255,.16);color:#fff}
.hero-media{position:relative;z-index:2;border-radius:22px;overflow:hidden;box-shadow:var(--sh-3)}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-media::after{content:"";position:absolute;inset:0;background:var(--g-soft);opacity:.04}
/* ---------- stat row ---------- */
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:22px}
.stat-card{background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:16px 22px;box-shadow:var(--sh-1);display:flex;align-items:center;gap:14px;transition:box-shadow .22s var(--ease),transform .22s var(--ease)}
.stat-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px)}
.stat-dot{width:10px;height:10px;border-radius:50%;background:var(--lime);flex:0 0 auto;box-shadow:0 0 0 4px rgba(214,236,91,.28)}
.stat-num{font-family:"Inter",var(--f-sans);font-weight:700;font-size:19px;font-variant-numeric:tabular-nums;color:var(--brand-700);line-height:1.2}
.stat-label{font-size:12px;color:var(--ink-3);line-height:1.5;margin-top:2px}
/* ---------- compare table ---------- */
.compare-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden}
.compare-table{width:100%;border-collapse:collapse;font-size:15px}
.compare-table th,.compare-table td{padding:16px 20px;text-align:left;border-bottom:1px solid var(--line);vertical-align:middle}
.compare-table thead th{background:var(--surface-2);font-size:14px;font-weight:700;color:var(--brand-700)}
.compare-table thead th:first-child{color:var(--ink-2);font-weight:600}
.compare-table tbody tr:last-child td{border-bottom:0}
.compare-table tbody tr:hover{background:#FAFBF7}
.col-reco{background:var(--brand-100);position:relative}
th.col-reco::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--g-warm)}
.plan-name{display:block;font-size:16px;color:var(--ink);font-weight:700}
.plan-price{display:block;font-size:12px;color:var(--ink-3);margin-top:2px;font-weight:400}
.mark-yes{display:inline-flex;width:22px;height:22px;border-radius:50%;background:var(--brand-500);color:#fff;align-items:center;justify-content:center;font-size:12px;font-weight:700}
.mark-no{display:inline-flex;width:22px;height:22px;border-radius:50%;background:#E7ECE6;color:var(--ink-3);align-items:center;justify-content:center;font-size:12px}
.compare-note{margin-top:16px;font-size:13px;color:var(--ink-3);line-height:1.8}
.plan-mobile{display:none}
/* ---------- plan cards ---------- */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.plan-card{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:34px 28px 28px;min-height:290px;display:flex;flex-direction:column;box-shadow:var(--sh-1);transition:box-shadow .22s var(--ease),transform .22s var(--ease)}
.plan-card::before{content:"";position:absolute;top:0;left:0;right:0;height:8px;border-radius:var(--r-card) var(--r-card) 0 0;background:var(--brand-300)}
.plan-card:nth-child(2)::before{background:var(--g-warm)}
.plan-card:nth-child(3)::before{background:var(--brand-700)}
.plan-card:hover{box-shadow:var(--sh-3);transform:translateY(-3px)}
.plan-card.featured{transform:scale(1.03);box-shadow:var(--sh-3);border-color:var(--brand-300)}
.plan-card.featured:hover{transform:scale(1.03) translateY(-3px)}
.plan-tag{align-self:flex-start;background:var(--lime);color:var(--ink);font-size:12px;font-weight:700;padding:5px 12px;border-radius:999px;letter-spacing:.3px}
.plan-badge{position:absolute;top:-13px;right:22px;background:var(--accent);color:#fff;font-size:12px;font-weight:700;padding:5px 14px;border-radius:999px;box-shadow:var(--sh-2)}
.plan-card h3{margin:18px 0 8px;font-size:22px;font-weight:700;color:var(--ink)}
.plan-card p{margin:0;font-size:14px;line-height:1.8;color:var(--ink-2);flex:1}
.plan-card .btn-link-arrow{margin-top:20px}
/* ---------- preview grid ---------- */
.preview-grid{display:grid;grid-template-columns:repeat(4,1fr);grid-template-rows:repeat(2,200px);gap:20px}
.pv{position:relative;border-radius:20px;overflow:hidden;display:block;border:1px solid var(--line);box-shadow:var(--sh-1);transition:box-shadow .22s var(--ease),transform .22s var(--ease)}
.pv:hover{box-shadow:var(--sh-3);transform:translateY(-3px)}
.pv img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.pv:hover img{transform:scale(1.04)}
.pv::after{content:"";position:absolute;inset:auto 0 0 0;height:48%;background:linear-gradient(180deg,rgba(11,58,50,0) 0%,rgba(11,58,50,.78) 100%)}
.pv:nth-child(1){grid-column:span 2;grid-row:span 2}
.pv:nth-child(4){grid-row:span 2}
.pv-badge{position:absolute;z-index:3;top:14px;left:14px;background:rgba(255,255,255,.86);color:var(--brand-900);font-size:12px;font-weight:700;padding:4px 12px;border-radius:999px}
.pv-title{position:absolute;z-index:3;left:18px;right:18px;bottom:16px;color:#fff;font-size:16px;font-weight:600;line-height:1.5}
.pv:nth-child(1) .pv-title{font-size:19px}
/* ---------- news ---------- */
.news-layout{display:grid;grid-template-columns:1.15fr 1fr;gap:24px;align-items:start}
.news-main{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:box-shadow .22s var(--ease),transform .22s var(--ease);display:grid;grid-template-columns:40% 60%}
.news-main:hover{box-shadow:var(--sh-3);transform:translateY(-3px)}
.news-main-img{height:100%;min-height:220px;overflow:hidden}
.news-main-img img{width:100%;height:100%;object-fit:cover}
.news-main-body{padding:24px 26px;display:flex;flex-direction:column;gap:10px}
.pill-cat{align-self:flex-start;font-size:12px;font-weight:700;padding:4px 12px;border-radius:999px;background:var(--brand-100);color:var(--brand-700)}
.news-main-body h3{margin:0;font-size:20px;line-height:1.5;font-weight:600;color:var(--ink);transition:color .2s var(--ease)}
.news-main:hover h3{color:var(--accent-600)}
.news-main-body p{margin:0;font-size:14px;line-height:1.7;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{font-size:13px;color:var(--ink-3);margin-top:auto}
.news-list{display:flex;flex-direction:column;gap:12px}
.news-item{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:18px 22px;transition:box-shadow .22s var(--ease),transform .22s var(--ease)}
.news-item:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.news-item h3{margin:0 0 6px;font-size:16px;line-height:1.55;font-weight:600;color:var(--ink);display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;transition:color .2s var(--ease)}
.news-item:hover h3{color:var(--accent-600)}
.news-item p{margin:0 0 10px;font-size:13px;line-height:1.7;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-3)}
.news-item-meta .pill-cat{font-size:11px;padding:3px 10px}
.news-link{position:absolute;inset:0;z-index:4;font-size:0;color:transparent}
.news-link:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:16px}
.news-more{margin-top:18px;text-align:right}
/* ---------- empty ---------- */
.empty-state{border:1.5px dashed var(--line);border-radius:var(--r-card);padding:48px 24px;text-align:center;background:var(--surface)}
.empty-art{width:86px;height:60px;margin:0 auto 18px;border-radius:14px;position:relative;background:var(--surface-2);border:1.5px solid var(--line)}
.empty-art::before{content:"";position:absolute;left:14px;right:14px;top:18px;height:2px;background:var(--line);border-radius:2px}
.empty-art::after{content:"";position:absolute;left:14px;width:40px;top:30px;height:2px;background:var(--line);border-radius:2px}
.empty-state p{margin:0 0 18px;font-size:14px;color:var(--ink-2)}
/* ---------- faq ---------- */
.faq-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:8px 28px}
.faq-item{border-bottom:1px solid var(--line);padding:0}
.faq-item:last-child{border-bottom:0}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:22px 0;font-size:17px;font-weight:600;color:var(--ink);transition:color .2s var(--ease)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";flex:0 0 auto;width:30px;height:30px;border-radius:50%;background:var(--brand-100);color:var(--brand-700);display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;transition:transform .2s var(--ease),background .2s var(--ease)}
.faq-item[open] summary{color:var(--brand-700)}
.faq-item[open] summary::after{content:"−";background:var(--brand-700);color:#fff}
.faq-answer{padding:0 0 20px;font-size:15px;line-height:1.8;color:var(--ink-2);max-width:900px}
/* ---------- cta band ---------- */
.cta-band{position:relative;overflow:hidden;margin-top:var(--section-gap);border-radius:var(--r-big);background:var(--g-brand);color:#fff;padding:44px 52px;display:flex;align-items:center;justify-content:space-between;gap:28px;box-shadow:var(--sh-2)}
.cta-band::after{content:"";position:absolute;inset:0;pointer-events:none;background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.06) 0 1px,transparent 1px 16px);opacity:.7}
.cta-band h2{position:relative;z-index:2;margin:0;font-size:23px;line-height:1.4;font-weight:700;color:#fff}
.cta-band p{position:relative;z-index:2;margin:8px 0 0;font-size:14px;color:rgba(255,255,255,.78)}
.cta-band .btn-main{position:relative;z-index:2;flex:0 0 auto}
/* ---------- footer ---------- */
.site-footer{margin-top:var(--section-gap);background:var(--brand-900);color:rgba(255,255,255,.72);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{box-shadow:none}
.footer-brand strong{color:#fff;font-size:17px;font-weight:700}
.footer-col h4{margin:0 0 16px;font-size:15px;font-weight:600;color:#fff}
.footer-col p{margin:0;font-size:14px;line-height:1.9;color:rgba(255,255,255,.72)}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.72)}
.footer-col ul a:hover{color:var(--brand-300);text-decoration:underline;text-underline-offset:4px}
.footer-bottom{margin-top:44px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0 26px;font-size:12px;line-height:1.9;color:rgba(255,255,255,.55);display:flex;flex-wrap:wrap;gap:8px 22px;justify-content:space-between}
.footer-bottom a{color:rgba(255,255,255,.6)}
.footer-bottom a:hover{color:var(--brand-300)}
/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .hero-panel{padding:44px;gap:32px}
  .hero-copy h1{font-size:38px}
}
@media (max-width:991.98px){
  :root{--section-gap:64px}
  .topbar-search{max-width:220px;margin-left:0}
  .hero-panel{grid-template-columns:1fr;padding:40px}
  .hero-copy h1{font-size:34px}
  .hero-media{order:2}
  .navtabs-inner{position:relative;padding-right:16px;padding-left:0}
  .news-layout{grid-template-columns:1fr}
  .plan-card.featured{transform:none}
  .plan-card.featured:hover{transform:translateY(-3px)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .preview-grid{grid-template-columns:repeat(2,1fr);grid-template-rows:repeat(2,200px)}
  .preview-grid .pv:nth-child(1){grid-column:span 2;grid-row:span 1}
  .preview-grid .pv:nth-child(4){grid-row:span 1}
}
@media (max-width:767.98px){
  :root{--section-gap:52px}
  .container{padding:0 16px}
  .topbar{gap:12px}
  .topbar-search{display:none}
  .top-link-login{display:none}
  .brand-text{font-size:15px}
  .hero-panel{padding:28px 22px;border-radius:22px}
  .hero-copy h1{font-size:29px;line-height:1.32}
  .hero-copy p.sub{font-size:15px}
  .hero-actions .btn-main,.hero-actions .btn-outline{width:100%}
  .sec-title{font-size:23px}
  .stat-row{grid-template-columns:repeat(2,1fr);gap:14px}
  .stat-card{padding:14px 16px;gap:10px}
  .compare-wrap{display:none}
  .plan-mobile{display:grid;gap:16px}
  .plan-mobile .m-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1)}
  .plan-mobile .m-card.reco{background:var(--brand-100);border-color:var(--brand-300)}
  .plan-mobile h3{margin:0 0 4px;font-size:18px;font-weight:700}
  .plan-mobile .m-price{font-size:13px;color:var(--ink-3);margin-bottom:12px}
  .plan-mobile ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
  .plan-mobile li{font-size:14px;color:var(--ink-2);display:flex;gap:10px;align-items:flex-start;line-height:1.7}
  .plan-mobile li .dot{flex:0 0 auto;width:18px;height:18px;border-radius:50%;background:var(--brand-500);color:#fff;font-size:11px;display:flex;align-items:center;justify-content:center;margin-top:4px}
  .plan-mobile li .dot.off{background:#E7ECE6;color:var(--ink-3)}
  .plan-grid{grid-template-columns:1fr;gap:18px}
  .plan-card{min-height:auto}
  .preview-grid{grid-template-columns:1fr;grid-template-rows:repeat(4,190px)}
  .preview-grid .pv:nth-child(1),.preview-grid .pv:nth-child(4){grid-column:span 1;grid-row:span 1}
  .news-main{grid-template-columns:1fr}
  .news-main-img{min-height:180px}
  .faq-card{padding:6px 18px}
  .faq-item summary{font-size:16px;padding:18px 0}
  .cta-band{flex-direction:column;align-items:flex-start;padding:30px 24px;gap:18px}
  .cta-band h2{font-size:20px}
  .cta-band .btn-main{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding-top:44px}
}
@media (max-width:399.98px){
  .hero-copy h1{font-size:26px}
  .stat-num{font-size:17px}
}

/* roulang page: category1 */
:root{
  --brand-900:#0B3A32;--brand-700:#14584E;--brand-500:#1E8A6E;--brand-300:#63C6A4;--brand-100:#DCF1E7;
  --accent:#F07A46;--accent-600:#D9612F;--accent-100:#FDE6D9;--lime:#D6EC5B;
  --ink:#14201D;--ink-2:#4C5A56;--ink-3:#7B8A85;
  --line:#E2E7E1;--bg:#F5F7F2;--surface:#FFFFFF;--surface-2:#EEF3EC;
  --g-brand:linear-gradient(118deg,#0B3A32 0%,#1E8A6E 58%,#63C6A4 100%);
  --g-warm:linear-gradient(118deg,#F07A46 0%,#F7B473 100%);
  --g-soft:linear-gradient(160deg,#FFFFFF 0%,#EEF3EC 100%);
  --f-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --f-num:"Inter","Noto Sans SC",system-ui,sans-serif;
  --r-card:22px;--r-big:28px;--r-sm:14px;--r-pill:999px;
  --sh-1:0 2px 8px rgba(11,58,50,.05);
  --sh-2:0 8px 24px rgba(11,58,50,.08);
  --sh-3:0 18px 44px rgba(11,58,50,.14);
  --section-gap:88px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:140px}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--f-sans);font-size:16px;line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--accent-600)}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:-.2px}
p{margin:0 0 14px}
ul{margin:0;padding:0;list-style:none}
button,input,textarea,select{font-family:inherit;font-size:inherit}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(245,247,242,.82);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s var(--ease);
}
.site-header.is-stuck{box-shadow:var(--sh-1)}
.topbar{
  height:68px;display:flex;align-items:center;gap:20px;
  transition:height .24s var(--ease);
}
.site-header.is-stuck .topbar{height:56px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:42px;height:42px;border-radius:13px;
  background:var(--g-brand);
  color:#fff;font-family:var(--f-num);font-weight:700;font-size:16px;
  display:inline-flex;align-items:center;justify-content:center;
  letter-spacing:-.4px;box-shadow:var(--sh-1);
}
.brand-text{font-weight:700;font-size:17px;color:var(--brand-900);letter-spacing:-.3px}
.brand-text span{color:var(--brand-500)}
.topbar-search{flex:1 1 auto;display:flex;justify-content:center}
.search-form{
  display:flex;align-items:center;width:100%;max-width:320px;
  background:var(--surface);border:1.5px solid var(--line);
  border-radius:var(--r-pill);padding:3px 3px 3px 16px;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.search-form:hover{border-color:var(--brand-500)}
.search-form:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 3px var(--brand-100)}
.search-form input{
  flex:1;border:0;background:transparent;height:36px;color:var(--ink);
  font-size:14px;outline:none;
}
.search-form input::placeholder{color:var(--ink-3)}
.search-form button{
  border:0;border-radius:var(--r-pill);height:36px;padding:0 18px;
  background:var(--brand-700);color:#fff;font-size:14px;font-weight:600;cursor:pointer;
  transition:background .22s var(--ease),transform .22s var(--ease);
}
.search-form button:hover{background:var(--brand-500)}
.topbar-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.top-link-login{font-size:15px;font-weight:600;color:var(--brand-700)}
.top-link-login:hover{color:var(--accent-600)}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 28px;border-radius:var(--r-pill);border:0;
  background:var(--g-warm);color:#fff;font-weight:600;font-size:15px;
  box-shadow:var(--sh-1);cursor:pointer;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-main:hover{transform:translateY(-2px);box-shadow:var(--sh-3);color:#fff}
.btn-main:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-main.sm{padding:10px 22px;font-size:14px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:var(--r-pill);
  background:transparent;border:1.5px solid var(--brand-700);
  color:var(--brand-700);font-weight:600;font-size:15px;
  transition:background .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-ghost:hover{background:var(--brand-100);transform:translateY(-2px);color:var(--brand-700)}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--brand-700);font-size:15px}
.btn-text::after{content:"→";transition:transform .22s var(--ease)}
.btn-text:hover::after{transform:translateX(5px)}
.navtabs{background:rgba(245,247,242,.6);border-top:1px solid var(--line)}
.navtabs-inner{
  height:48px;display:flex;align-items:center;gap:8px;
  scroll-padding:0 16px;
}
.navtabs-inner a{
  display:inline-flex;align-items:center;height:34px;padding:0 18px;
  border-radius:var(--r-pill);font-size:15px;font-weight:600;color:var(--ink-2);
  white-space:nowrap;transition:background .22s var(--ease),color .22s var(--ease);
}
.navtabs-inner a:hover{background:var(--brand-100);color:var(--brand-700)}
.navtabs-inner a.active{background:var(--brand-700);color:#fff}

/* ---------- 通用板块 ---------- */
.page-main{padding:36px 0 0}
.section{margin-bottom:var(--section-gap)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px;flex-wrap:wrap}
.sec-head h2{font-size:30px;line-height:1.35}
.sec-head h2::before{
  content:"";display:block;width:28px;height:6px;border-radius:3px;
  background:var(--lime);margin-bottom:14px;
}
.sec-head p{color:var(--ink-2);font-size:15px;margin:8px 0 0;max-width:640px}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:var(--r-pill);
  background:var(--lime);color:var(--ink);font-size:13px;font-weight:600;
}
.pill.soft{background:var(--brand-100);color:var(--brand-700)}
.meta-line{font-size:13px;color:var(--ink-3);font-family:var(--f-num)}

/* ---------- 页头 Banner ---------- */
.page-banner{
  background:var(--g-soft);border:1px solid var(--line);border-radius:var(--r-big);
  padding:44px 46px;display:grid;grid-template-columns:1.5fr 1fr;gap:34px;
  box-shadow:var(--sh-1);position:relative;overflow:hidden;
}
.page-banner::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(30,138,110,.14) 0%,rgba(30,138,110,0) 70%);
}
.banner-left h1{font-size:40px;line-height:1.26;letter-spacing:-.5px}
.banner-left .lead{font-size:17px;color:var(--ink-2);margin-top:16px;max-width:520px}
.banner-crumb{font-size:13px;color:var(--ink-3);margin-bottom:18px}
.banner-crumb a{color:var(--ink-3)}
.banner-crumb a:hover{color:var(--brand-700)}
.banner-crumb span.sep{margin:0 8px;color:var(--line)}
.banner-crumb strong{color:var(--ink);font-weight:600}
.banner-note{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);align-self:start;
}
.banner-note h2{font-size:16px;font-weight:600;color:var(--brand-700);margin-bottom:10px}
.banner-note p{font-size:15px;color:var(--ink-2);margin:0}
.banner-note .note-foot{margin-top:16px;padding-top:16px;border-top:1px solid var(--line);font-size:14px;color:var(--ink-3)}
.anchor-row{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:10px;margin-top:4px}
.anchor-row a{
  display:inline-flex;align-items:center;padding:8px 18px;border-radius:var(--r-pill);
  background:var(--surface);border:1px solid var(--line);font-size:14px;font-weight:600;color:var(--brand-700);
  transition:border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.anchor-row a:hover{border-color:var(--brand-500);transform:translateY(-2px);box-shadow:var(--sh-1);color:var(--brand-700)}

/* ---------- 图文大卡 ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.feature-card{
  display:grid;grid-template-columns:40% 1fr;gap:0;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:box-shadow .22s var(--ease),transform .22s var(--ease);
}
.feature-card:hover{box-shadow:var(--sh-3);transform:translateY(-3px)}
.feature-card figure{margin:0;position:relative;overflow:hidden}
.feature-card img{width:100%;height:100%;min-height:230px;object-fit:cover;transition:transform .4s var(--ease)}
.feature-card:hover img{transform:scale(1.04)}
.feature-body{padding:26px 24px;display:flex;flex-direction:column;gap:12px}
.feature-body h3{font-size:20px;line-height:1.5}
.feature-body p{font-size:15px;color:var(--ink-2);margin:0}
.feature-list{display:flex;flex-direction:column;gap:8px;margin-top:2px}
.feature-list li{position:relative;padding-left:18px;font-size:14px;color:var(--ink-2);line-height:1.7}
.feature-list li::before{
  content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:50%;
  background:var(--brand-500);
}
.feature-body .btn-text{margin-top:auto;font-size:14px}

/* ---------- 等级卡 ---------- */
.tier-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.tier-card{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);padding:30px 26px 26px;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;gap:14px;
  transition:box-shadow .22s var(--ease),transform .22s var(--ease);
}
.tier-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:8px;
  border-radius:var(--r-card) var(--r-card) 0 0;
  background:linear-gradient(90deg,var(--brand-300),var(--brand-500));
}
.tier-card.is-featured{
  border-color:var(--brand-300);box-shadow:var(--sh-3);transform:scale(1.02);
}
.tier-card.is-featured::before{background:var(--g-warm)}
.tier-card:hover{box-shadow:var(--sh-3);transform:translateY(-3px)}
.tier-card.is-featured:hover{transform:translateY(-3px) scale(1.02)}
.tier-tag{align-self:flex-start;background:var(--lime);color:var(--ink);font-size:13px;font-weight:600;padding:4px 12px;border-radius:var(--r-pill)}
.tier-flag{
  position:absolute;right:22px;top:22px;font-size:12px;font-weight:600;
  background:var(--accent-100);color:var(--accent-600);padding:4px 12px;border-radius:var(--r-pill);
}
.tier-card h3{font-size:21px}
.tier-card .tier-desc{font-size:14px;color:var(--ink-2);margin:0}
.tier-facts{display:flex;flex-direction:column;gap:9px;padding-top:6px;border-top:1px solid var(--line);margin-top:2px}
.tier-facts li{display:flex;justify-content:space-between;gap:12px;font-size:14px;color:var(--ink-2)}
.tier-facts b{font-family:var(--f-num);font-weight:700;color:var(--brand-700)}
.tier-card .btn-text{margin-top:auto;font-size:14px}

/* ---------- 速查条 ---------- */
.quickstrip{
  background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
}
.qs-item{
  background:var(--surface);border:1px solid var(--line);border-radius:18px;
  padding:18px 20px;display:flex;flex-direction:column;gap:4px;box-shadow:var(--sh-1);
}
.qs-item .qs-top{display:flex;align-items:center;gap:8px}
.qs-dot{width:9px;height:9px;border-radius:50%;background:var(--lime);flex:0 0 auto}
.qs-num{font-family:var(--f-num);font-size:24px;font-weight:700;color:var(--brand-900);font-variant-numeric:tabular-nums;line-height:1.2}
.qs-label{font-size:13px;color:var(--ink-3);line-height:1.6}

/* ---------- 开通路径 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.step-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 26px;box-shadow:var(--sh-1);position:relative;
  transition:box-shadow .22s var(--ease),transform .22s var(--ease);
}
.step-card:hover{box-shadow:var(--sh-3);transform:translateY(-3px)}
.step-num{
  font-family:var(--f-num);font-weight:700;font-size:34px;line-height:1;
  color:var(--brand-100);display:block;margin-bottom:12px;
}
.step-card h3{font-size:18px;margin-bottom:10px}
.step-card p{font-size:14px;color:var(--ink-2);margin:0}
.step-card .step-result{
  margin-top:14px;padding-top:14px;border-top:1px solid var(--line);
  font-size:13px;color:var(--brand-700);font-weight:600;
}

/* ---------- CTA 通栏 ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-big);
  background:var(--g-brand);padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:6px 6px;opacity:.06;pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;right:-30px;bottom:-50px;width:240px;height:240px;
  border-radius:50%;background:radial-gradient(circle,rgba(214,236,91,.22) 0%,rgba(214,236,91,0) 70%);
  pointer-events:none;
}
.cta-copy{position:relative;z-index:2;max-width:600px}
.cta-copy h2{color:#fff;font-size:24px;line-height:1.4;margin-bottom:8px}
.cta-copy p{color:rgba(255,255,255,.78);font-size:15px;margin:0}
.cta-band .btn-main{position:relative;z-index:2}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);margin-top:96px;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.footer-col h4{color:#fff;font-size:16px;font-weight:600;margin-bottom:16px}
.footer-col p{font-size:14px;line-height:1.9;margin:0 0 10px;color:rgba(255,255,255,.72)}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.72)}
.footer-col ul a:hover{color:var(--brand-300);text-decoration:underline;text-underline-offset:4px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:38px;height:38px;border-radius:12px;font-size:14px}
.footer-brand strong{color:#fff;font-size:17px;font-weight:700}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12px;color:rgba(255,255,255,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  :root{--section-gap:76px}
  .banner-left h1{font-size:34px}
}
@media (max-width:992px){
  .container{padding:0 20px}
  .topbar-search{display:none}
  .navtabs-inner{
    overflow-x:auto;height:44px;padding:0 16px;
    -webkit-overflow-scrolling:touch;scrollbar-width:none;
    mask-image:linear-gradient(90deg,transparent 0,#000 16px,#000 calc(100% - 16px),transparent 100%);
    -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 16px,#000 calc(100% - 16px),transparent 100%);
  }
  .navtabs-inner::-webkit-scrollbar{display:none}
  .page-banner{grid-template-columns:1fr;padding:34px 28px;gap:24px}
  .banner-left h1{font-size:30px}
  .feature-grid{grid-template-columns:1fr}
  .tier-grid{grid-template-columns:1fr}
  .tier-card.is-featured{transform:none}
  .tier-card.is-featured:hover{transform:translateY(-3px)}
  .quickstrip{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .cta-band{padding:34px 28px}
}
@media (max-width:768px){
  :root{--section-gap:56px}
  .sec-head h2{font-size:23px}
  .feature-card{grid-template-columns:1fr}
  .feature-card img{min-height:200px;aspect-ratio:16/10}
  .page-banner{padding:28px 22px;border-radius:22px}
  .banner-left h1{font-size:26px;line-height:1.32}
  .banner-left .lead{font-size:15px}
  .cta-copy h2{font-size:20px}
  .footer-grid{grid-template-columns:1fr}
  .site-footer{margin-top:64px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .brand-text{font-size:15px}
  .brand-mark{width:38px;height:38px;border-radius:11px;font-size:14px}
  .topbar-actions{gap:10px}
  .btn-main.sm{padding:9px 16px;font-size:13px}
  .top-link-login{font-size:14px}
  .quickstrip{grid-template-columns:1fr}
  .page-banner{padding:24px 18px}
  .banner-left h1{font-size:23px}
  .cta-band{padding:28px 20px;border-radius:22px}
}

/* roulang page: article */
:root{
  --brand-900:#0B3A32;
  --brand-700:#14584E;
  --brand-500:#1E8A6E;
  --brand-300:#63C6A4;
  --brand-100:#DCF1E7;
  --accent:#F07A46;
  --accent-600:#D9612F;
  --accent-100:#FDE6D9;
  --lime:#D6EC5B;
  --ink:#14201D;
  --ink-2:#4C5A56;
  --ink-3:#7B8A85;
  --line:#E2E7E1;
  --bg:#F5F7F2;
  --surface:#FFFFFF;
  --surface-2:#EEF3EC;
  --g-brand:linear-gradient(118deg,#0B3A32 0%,#1E8A6E 58%,#63C6A4 100%);
  --g-warm:linear-gradient(118deg,#F07A46 0%,#F7B473 100%);
  --g-soft:linear-gradient(160deg,#FFFFFF 0%,#EEF3EC 100%);
  --f-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --f-num:"Inter","Noto Sans SC",system-ui,sans-serif;
  --sh-1:0 2px 8px rgba(11,58,50,.05);
  --sh-2:0 8px 24px rgba(11,58,50,.08);
  --sh-3:0 18px 44px rgba(11,58,50,.14);
  --r-card:22px;
  --r-big:28px;
  --r-sm:14px;
  --r-pill:999px;
  --section-gap:88px;
  --ease:cubic-bezier(.2,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:140px;}
body{
  margin:0;
  font-family:var(--f-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-sm);}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--accent-600);}
button{font-family:inherit;}
h1,h2,h3,h4{color:var(--ink);margin:0;line-height:1.35;font-weight:700;}
p{margin:0 0 1em;}
ul,ol{margin:0 0 1em;padding-left:1.25em;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.num{font-family:var(--f-num);font-variant-numeric:tabular-nums;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:rgba(245,247,242,.82);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-compact{box-shadow:var(--sh-2);}
.topbar{
  display:flex;
  align-items:center;
  gap:20px;
  height:68px;
  transition:height .25s var(--ease);
}
.site-header.is-compact .topbar{height:56px;}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--ink);
}
.brand:hover{color:var(--ink);}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:42px;
  height:42px;
  border-radius:13px;
  background:var(--g-brand);
  color:#fff;
  font-family:var(--f-num);
  font-weight:700;
  font-size:16px;
  letter-spacing:.5px;
  box-shadow:var(--sh-1);
}
.brand-text{
  font-size:18px;
  font-weight:700;
  letter-spacing:.2px;
  color:var(--ink);
  white-space:nowrap;
}
.brand-text span{color:var(--brand-500);}
.topbar-search{flex:1 1 auto;display:flex;justify-content:center;}
.search-form{
  position:relative;
  display:flex;
  align-items:center;
  width:100%;
  max-width:320px;
  background:var(--surface);
  border:1.5px solid var(--line);
  border-radius:var(--r-pill);
  padding:3px 3px 3px 18px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-form:hover{border-color:var(--brand-500);}
.search-form:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 3px var(--brand-100);}
.search-form input{
  flex:1 1 auto;
  min-width:0;
  border:0;
  outline:0;
  background:transparent;
  font-size:14px;
  color:var(--ink);
  height:34px;
}
.search-form input::placeholder{color:var(--ink-3);}
.search-form button{
  flex:0 0 auto;
  border:0;
  height:34px;
  padding:0 16px;
  border-radius:var(--r-pill);
  background:var(--brand-700);
  color:#fff;
  font-size:14px;
  font-weight:500;
  cursor:pointer;
  transition:background .2s var(--ease);
}
.search-form button:hover{background:var(--brand-500);}
.topbar-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.link-login{font-size:15px;color:var(--ink-2);font-weight:500;}
.link-login:hover{color:var(--brand-700);}
.btn-main{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:6px;
  padding:12px 26px;
  border:0;
  border-radius:var(--r-pill);
  background:var(--g-warm);
  color:#fff;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),filter .2s var(--ease);
}
.btn-main:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--sh-3);}
.btn-main:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-main.sm{padding:9px 20px;font-size:14px;}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:6px;
  padding:11px 24px;
  border:1.5px solid var(--brand-700);
  border-radius:var(--r-pill);
  background:transparent;
  color:var(--brand-700);
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),transform .22s var(--ease);
}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-700);transform:translateY(-2px);}
.btn-main:focus-visible,.btn-ghost:focus-visible,.link-more:focus-visible,
.search-form button:focus-visible,.tag-link:focus-visible,
.navtabs-inner a:focus-visible,.side-card a:focus-visible{
  outline:3px solid var(--accent);
  outline-offset:2px;
}

/* 第二行频道 */
.navtabs{
  border-top:1px solid rgba(226,231,225,.7);
  background:rgba(255,255,255,.5);
}
.navtabs-inner{
  display:flex;
  align-items:center;
  gap:8px;
  height:48px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.navtabs-inner::-webkit-scrollbar{display:none;}
.navtabs-inner a{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  height:34px;
  padding:0 18px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:500;
  color:var(--ink-2);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.navtabs-inner a:hover{background:var(--brand-100);color:var(--brand-700);}
.navtabs-inner a.active{background:var(--brand-700);color:#fff;}
.navtabs-inner a.active:hover{background:var(--brand-700);color:#fff;}

/* ============ 面包屑 ============ */
.breadcrumb-bar{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding:26px 0 0;
  font-size:13px;
  line-height:1.6;
  color:var(--ink-3);
}
.breadcrumb-bar a{color:var(--ink-3);}
.breadcrumb-bar a:hover{color:var(--brand-700);}
.breadcrumb-bar .sep{color:var(--line);}
.breadcrumb-bar .current{color:var(--ink);font-weight:500;}

/* ============ 文章布局 ============ */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,820px) 280px;
  gap:44px;
  align-items:start;
  justify-content:center;
  padding:26px 0 var(--section-gap);
}
.article-main{min-width:0;}

.article-head{margin-bottom:28px;}
.cat-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:30px;
  padding:0 16px;
  border-radius:var(--r-pill);
  background:var(--brand-100);
  color:var(--brand-700);
  font-size:13px;
  font-weight:600;
  margin-bottom:18px;
}
.cat-pill::before{
  content:"";
  width:7px;height:7px;border-radius:50%;
  background:var(--brand-500);
}
.article-head h1{
  font-size:34px;
  line-height:1.4;
  letter-spacing:-.4px;
  margin-bottom:18px;
  word-break:break-word;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--ink-3);
}
.article-meta .dot{color:var(--line);}
.article-meta .num{color:var(--ink-3);}

/* 正文排版 */
.article-body{
  font-size:17px;
  line-height:1.9;
  color:var(--ink-2);
  word-break:break-word;
}
.article-body p{margin:0 0 1.4em;}
.article-body h2{
  position:relative;
  font-size:24px;
  line-height:1.5;
  margin:40px 0 16px;
  padding-top:6px;
  color:var(--ink);
}
.article-body h2::before{
  content:"";
  position:absolute;
  top:-8px;left:0;
  width:28px;height:6px;
  border-radius:3px;
  background:var(--lime);
}
.article-body h3{
  font-size:19px;
  line-height:1.6;
  margin:28px 0 12px;
  color:var(--ink);
}
.article-body h4{font-size:17px;margin:22px 0 10px;color:var(--ink);}
.article-body ul,.article-body ol{padding-left:1.4em;margin:0 0 1.4em;}
.article-body li{margin-bottom:.5em;line-height:1.9;}
.article-body li::marker{color:var(--brand-500);}
.article-body blockquote{
  margin:24px 0;
  padding:18px 22px;
  border-left:3px solid var(--brand-300);
  background:var(--surface-2);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:16px;margin:22px auto;}
.article-body figure{margin:24px 0;}
.article-body figcaption{
  font-size:13px;
  text-align:center;
  color:var(--ink-3);
  margin-top:10px;
}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:22px 0;
  font-size:15px;
}
.article-body th,.article-body td{
  border:0;
  border-bottom:1px solid var(--line);
  padding:12px 14px;
  text-align:left;
  vertical-align:top;
}
.article-body th{background:var(--surface-2);color:var(--ink);font-weight:600;}
.article-body pre{
  background:var(--surface-2);
  border-radius:14px;
  padding:18px 20px;
  overflow-x:auto;
  font-size:14px;
  line-height:1.7;
  margin:22px 0;
}
.article-body code{
  background:var(--surface-2);
  border-radius:6px;
  padding:2px 6px;
  font-size:.92em;
}
.article-body pre code{background:transparent;padding:0;}
.article-body a{color:var(--brand-700);border-bottom:1px solid var(--brand-100);}
.article-body a:hover{color:var(--accent-600);border-bottom-color:var(--accent-100);}

/* 空态 */
.empty-state{
  border:1.5px dashed var(--line);
  border-radius:var(--r-card);
  padding:56px 28px;
  text-align:center;
  background:var(--surface);
}
.empty-state p{color:var(--ink-3);font-size:15px;margin-bottom:22px;}

/* 标签行 */
.tag-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-top:40px;
  padding-top:26px;
  border-top:1px solid var(--line);
}
.tag-row .tag-label{font-size:13px;color:var(--ink-3);margin-right:4px;}
.tag-link{
  display:inline-flex;
  align-items:center;
  height:30px;
  padding:0 15px;
  border-radius:var(--r-pill);
  background:var(--surface-2);
  color:var(--ink-2);
  font-size:13px;
  border:1px solid var(--line);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.tag-link:hover{background:var(--brand-100);color:var(--brand-700);border-color:var(--brand-100);}

/* 上一篇 / 下一篇 */
.pn-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:20px;
  margin-top:32px;
}
.pn-card{
  display:block;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px 24px;
  box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .2s var(--ease);
}
.pn-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:var(--brand-100);}
.pn-card .pn-label{
  display:block;
  font-size:13px;
  color:var(--ink-3);
  margin-bottom:8px;
}
.pn-card .pn-title{
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  line-height:1.6;
}
.pn-card:hover .pn-title{color:var(--accent-600);}

/* 侧栏 */
.article-side{position:sticky;top:136px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px;
  box-shadow:var(--sh-1);
}
.side-card h4{
  font-size:15px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:14px;
  display:flex;
  align-items:center;
  gap:8px;
}
.side-card h4::before{
  content:"";
  width:6px;height:16px;border-radius:3px;
  background:var(--lime);
}
.side-card ul{list-style:none;margin:0;padding:0;}
.side-card li{margin-bottom:10px;}
.side-card li:last-child{margin-bottom:0;}
.side-card a{
  display:block;
  font-size:14px;
  line-height:1.7;
  color:var(--ink-2);
  padding-left:14px;
  position:relative;
}
.side-card a::before{
  content:"";
  position:absolute;
  left:0;top:.72em;
  width:5px;height:5px;
  border-radius:50%;
  background:var(--brand-300);
  transition:background .2s var(--ease);
}
.side-card a:hover{color:var(--accent-600);}
.side-card a:hover::before{background:var(--accent);}

/* 相关推荐 */
.rel-section{padding:0 0 var(--section-gap);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:32px;
}
.sec-title{
  position:relative;
  font-size:30px;
  line-height:1.35;
  padding-top:14px;
  margin:0;
}
.sec-title::before{
  content:"";
  position:absolute;
  top:0;left:0;
  width:28px;height:6px;
  border-radius:3px;
  background:var(--lime);
}
.sec-desc{font-size:15px;color:var(--ink-2);margin:10px 0 0;}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--brand-700);
  white-space:nowrap;
}
.link-more::after{content:"→";transition:transform .22s var(--ease);}
.link-more:hover{color:var(--accent-600);}
.link-more:hover::after{transform:translateX(4px);}

.rel-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:22px;
}
.rel-card{
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .2s var(--ease);
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:var(--brand-100);}
.rel-thumb{
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--surface-2);
}
.rel-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.rel-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.rel-tag{
  align-self:flex-start;
  height:24px;
  display:inline-flex;
  align-items:center;
  padding:0 12px;
  border-radius:var(--r-pill);
  background:var(--surface-2);
  color:var(--brand-700);
  font-size:12px;
  font-weight:600;
}
.rel-body h3{
  font-size:17px;
  line-height:1.6;
  font-weight:600;
  color:var(--ink);
  transition:color .2s var(--ease);
}
.rel-card:hover .rel-body h3{color:var(--accent-600);}
.rel-body p{
  font-size:14px;
  line-height:1.7;
  color:var(--ink-2);
  margin:0;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}

/* 返回栏目 */
.back-row{display:flex;justify-content:center;padding:0 0 var(--section-gap);}

/* CTA 通栏 */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-big);
  background:var(--g-brand);
  padding:44px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  margin-bottom:var(--section-gap);
  box-shadow:var(--sh-2);
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:6px 6px;
  opacity:.06;
  pointer-events:none;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-60px;top:-60px;
  width:260px;height:260px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.16);
  pointer-events:none;
}
.cta-text{position:relative;z-index:1;}
.cta-text h2{
  color:#fff;
  font-size:24px;
  line-height:1.4;
  margin-bottom:8px;
}
.cta-text p{
  margin:0;
  color:rgba(255,255,255,.78);
  font-size:15px;
}
.cta-band .btn-main{position:relative;z-index:1;flex:0 0 auto;}

/* 页脚 */
.site-footer{
  background:var(--brand-900);
  color:rgba(255,255,255,.72);
  padding:64px 0 28px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  gap:36px;
  padding-bottom:40px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:16px;
}
.footer-brand .brand-mark{width:38px;height:38px;border-radius:12px;font-size:14px;}
.footer-brand strong{color:#fff;font-size:16px;font-weight:700;}
.footer-col p{font-size:14px;line-height:1.85;margin:0;color:rgba(255,255,255,.72);}
.footer-col h4{
  color:#fff;
  font-size:15px;
  font-weight:600;
  margin-bottom:16px;
}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a{
  font-size:14px;
  color:rgba(255,255,255,.72);
  transition:color .2s var(--ease);
}
.footer-col a:hover{color:var(--brand-300);text-decoration:underline;text-underline-offset:4px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding-top:22px;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px;
  font-size:12px;
  color:rgba(255,255,255,.56);
}

/* ============ 响应式 ============ */
@media (max-width:1140px){
  .article-layout{grid-template-columns:minmax(0,820px);}
  .article-side{display:none;}
}
@media (max-width:992px){
  :root{--section-gap:64px;}
  .topbar-search{display:none;}
  .topbar-actions{margin-left:auto;}
  .article-head h1{font-size:29px;}
  .navtabs-inner{
    padding:0 4px;
    scroll-snap-type:x proximity;
    -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 16px,#000 calc(100% - 16px),transparent 100%);
    mask-image:linear-gradient(90deg,transparent 0,#000 16px,#000 calc(100% - 16px),transparent 100%);
  }
  .navtabs-inner a{scroll-snap-align:start;height:36px;}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:768px){
  :root{--section-gap:52px;--r-card:18px;--r-big:22px;}
  .container{padding:0 16px;}
  .topbar{height:60px;gap:12px;}
  .brand-mark{width:36px;height:36px;border-radius:11px;font-size:14px;}
  .brand-text{font-size:16px;}
  .topbar-actions{gap:10px;}
  .link-login{display:none;}
  .article-layout{padding-top:20px;gap:0;}
  .article-head h1{font-size:25px;line-height:1.45;}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:21px;margin-top:32px;}
  .article-body h3{font-size:18px;}
  .sec-title{font-size:23px;}
  .rel-grid{grid-template-columns:1fr;}
  .pn-grid{grid-template-columns:1fr;}
  .cta-band{
    flex-direction:column;
    align-items:flex-start;
    padding:32px 26px;
    text-align:left;
  }
  .cta-band .btn-main{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .breadcrumb-bar{padding-top:18px;}
}
@media (max-width:520px){
  .article-head h1{font-size:22px;}
  .rel-body{padding:18px;}
  .side-card{padding:18px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category2 */
:root{
  --brand-900:#0B3A32;
  --brand-700:#14584E;
  --brand-500:#1E8A6E;
  --brand-300:#63C6A4;
  --brand-100:#DCF1E7;
  --accent:#F07A46;
  --accent-600:#D9612F;
  --accent-100:#FDE6D9;
  --lime:#D6EC5B;
  --ink:#14201D;
  --ink-2:#4C5A56;
  --ink-3:#7B8A85;
  --line:#E2E7E1;
  --bg:#F5F7F2;
  --surface:#FFFFFF;
  --surface-2:#EEF3EC;
  --g-brand:linear-gradient(118deg,#0B3A32 0%,#1E8A6E 58%,#63C6A4 100%);
  --g-warm:linear-gradient(118deg,#F07A46 0%,#F7B473 100%);
  --g-soft:linear-gradient(160deg,#FFFFFF 0%,#EEF3EC 100%);
  --r-card:22px;
  --r-lg:28px;
  --r-sm:14px;
  --sh-1:0 2px 8px rgba(11,58,50,.05);
  --sh-2:0 8px 24px rgba(11,58,50,.08);
  --sh-3:0 18px 44px rgba(11,58,50,.14);
  --section-gap:88px;
  --f-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --f-num:"Inter","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-padding-top:140px;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--f-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none;transition:color .2s ease,background .2s ease,border-color .2s ease}
a:hover{color:var(--accent-600)}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 14px}
p:last-child{margin-bottom:0}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.2px}
button{font-family:inherit}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:6px}

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

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(245,247,242,.82);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.topbar{
  display:flex;
  align-items:center;
  gap:24px;
  height:68px;
  transition:height .22s cubic-bezier(.2,.7,.3,1);
}
.site-header.is-scrolled .topbar{height:56px}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.brand-mark{
  width:40px;
  height:40px;
  border-radius:12px;
  background:var(--g-brand);
  color:#fff;
  font-family:var(--f-num);
  font-weight:700;
  font-size:15px;
  letter-spacing:.5px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  box-shadow:var(--sh-1);
}
.brand-text{
  font-size:17px;
  font-weight:700;
  color:var(--brand-900);
  letter-spacing:-.3px;
  white-space:nowrap;
}
.brand-text span{color:var(--brand-500)}
.topbar-search{flex:1 1 auto;display:flex;justify-content:center}
.search-form{
  display:flex;
  align-items:center;
  width:320px;
  max-width:100%;
  height:42px;
  padding:4px 4px 4px 18px;
  border:1.5px solid var(--line);
  border-radius:999px;
  background:var(--surface);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-form:hover{border-color:var(--brand-500)}
.search-form:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 3px var(--brand-100)}
.search-form input{
  flex:1 1 auto;
  min-width:0;
  border:0;
  outline:none;
  background:transparent;
  font-size:14px;
  color:var(--ink);
  height:100%;
}
.search-form input::placeholder{color:var(--ink-3)}
.search-form button{
  flex:0 0 auto;
  height:34px;
  padding:0 18px;
  border:0;
  border-radius:999px;
  background:var(--g-warm);
  color:#fff;
  font-size:14px;
  font-weight:600;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease;
}
.search-form button:hover{transform:translateY(-1px);box-shadow:var(--sh-2)}
.search-form button:active{transform:translateY(0)}
.topbar-actions{display:flex;align-items:center;gap:18px;flex:0 0 auto}
.top-link-login{
  font-size:15px;
  font-weight:600;
  color:var(--brand-700);
  padding:6px 2px;
  border-bottom:2px solid transparent;
}
.top-link-login:hover{color:var(--accent-600);border-bottom-color:var(--accent-100)}
.btn-main{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:16px 32px;
  border-radius:999px;
  border:0;
  background:var(--g-warm);
  color:#fff;
  font-size:16px;
  font-weight:600;
  cursor:pointer;
  box-shadow:var(--sh-1);
  transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s ease;
}
.btn-main:hover{transform:translateY(-2px);box-shadow:var(--sh-3);color:#fff}
.btn-main:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-main.sm{padding:11px 24px;font-size:15px}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:15px 30px;
  border-radius:999px;
  border:1.5px solid var(--brand-700);
  background:transparent;
  color:var(--brand-700);
  font-size:16px;
  font-weight:600;
  cursor:pointer;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-900);transform:translateY(-2px)}
.btn-ghost.on-dark{border-color:rgba(255,255,255,.5);color:#fff}
.btn-ghost.on-dark:hover{background:rgba(255,255,255,.14);color:#fff}

.navtabs{
  border-top:1px solid var(--line);
  background:rgba(255,255,255,.55);
}
.navtabs-inner{
  display:flex;
  align-items:center;
  gap:8px;
  height:48px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
  scroll-padding-left:16px;
}
.navtabs-inner::-webkit-scrollbar{display:none}
.navtabs-inner a{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  height:34px;
  padding:0 20px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  color:var(--ink-2);
  white-space:nowrap;
  transition:background .2s ease,color .2s ease;
}
.navtabs-inner a:hover{background:var(--brand-100);color:var(--brand-700)}
.navtabs-inner a.active{background:var(--brand-700);color:#fff}

/* ---------- 页面主区 ---------- */
main{padding-top:36px;padding-bottom:calc(var(--section-gap) - 20px)}
.section{margin-bottom:var(--section-gap)}
.section-head{margin-bottom:32px;max-width:760px}
.section-head h2{
  position:relative;
  font-size:30px;
  line-height:1.35;
  font-weight:700;
  padding-top:18px;
}
.section-head h2::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  width:28px;
  height:6px;
  border-radius:3px;
  background:var(--lime);
}
.section-head p{
  margin-top:12px;
  font-size:15px;
  line-height:1.8;
  color:var(--ink-2);
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.6px;
  color:var(--brand-700);
  text-transform:uppercase;
}
.eyebrow::before{
  content:"";
  width:8px;height:8px;border-radius:50%;
  background:var(--lime);
}

/* ---------- 面包屑 ---------- */
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--ink-3);
  margin-bottom:20px;
}
.crumbs a{color:var(--ink-3)}
.crumbs a:hover{color:var(--brand-700)}
.crumbs .sep{color:var(--line)}
.crumbs .now{color:var(--ink)}

/* ---------- 深色页头 Banner ---------- */
.page-banner{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-lg);
  padding:48px 44px;
  background:var(--g-brand);
  color:#fff;
  box-shadow:var(--sh-2);
}
.page-banner::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:22px 22px;
  opacity:.5;
  pointer-events:none;
}
.page-banner::after{
  content:"";
  position:absolute;
  right:-120px;
  bottom:-160px;
  width:420px;
  height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(214,236,91,.22) 0%,rgba(214,236,91,0) 68%);
  pointer-events:none;
}
.page-banner .inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:40px;
  align-items:center;
}
.page-banner h1{
  color:#fff;
  font-size:38px;
  line-height:1.28;
  font-weight:700;
  letter-spacing:-.6px;
  margin-bottom:16px;
}
.page-banner .lead{
  font-size:16px;
  line-height:1.8;
  color:rgba(255,255,255,.82);
  max-width:540px;
  margin-bottom:24px;
}
.banner-side{
  border-radius:22px;
  border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.08);
  padding:24px 26px;
}
.banner-side h2{
  color:#fff;
  font-size:16px;
  font-weight:600;
  margin-bottom:12px;
}
.banner-side ul li{
  position:relative;
  padding-left:18px;
  font-size:14px;
  line-height:1.9;
  color:rgba(255,255,255,.82);
}
.banner-side ul li::before{
  content:"";
  position:absolute;
  left:0;
  top:11px;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--lime);
}
.anchor-pills{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:4px;
}
.anchor-pills a{
  display:inline-flex;
  align-items:center;
  height:36px;
  padding:0 18px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.32);
  font-size:14px;
  font-weight:600;
  color:rgba(255,255,255,.9);
  transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.anchor-pills a:hover{
  background:rgba(255,255,255,.14);
  border-color:rgba(255,255,255,.6);
  color:#fff;
  transform:translateY(-2px);
}

/* ---------- 问题分组 ---------- */
.group-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:22px;
}
.qgroup{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--surface);
  padding:26px 26px 20px;
  box-shadow:var(--sh-1);
  transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s ease,border-color .22s ease;
}
.qgroup:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:var(--brand-100)}
.qgroup-top{
  display:flex;
  align-items:flex-start;
  gap:16px;
  padding-bottom:16px;
  border-bottom:1px solid var(--line);
  margin-bottom:14px;
}
.qgroup-num{
  font-family:var(--f-num);
  font-variant-numeric:tabular-nums;
  font-size:40px;
  font-weight:700;
  line-height:1;
  color:var(--brand-100);
  flex:0 0 auto;
}
.qgroup-top h3{
  font-size:19px;
  line-height:1.5;
  font-weight:600;
  margin-bottom:4px;
}
.qgroup-top .qdesc{
  font-size:13px;
  line-height:1.7;
  color:var(--ink-3);
  margin:0;
}
.qlist li{margin-bottom:2px}
.qlist a{
  display:flex;
  align-items:flex-start;
  gap:10px;
  padding:9px 0;
  font-size:15px;
  line-height:1.7;
  color:var(--ink-2);
  border-bottom:1px dashed transparent;
  transition:color .2s ease,gap .2s ease;
}
.qlist a::before{
  content:"";
  flex:0 0 auto;
  width:6px;
  height:6px;
  margin-top:9px;
  border-radius:50%;
  background:var(--brand-300);
  transition:background .2s ease;
}
.qlist a:hover{color:var(--accent-600)}
.qlist a:hover::before{background:var(--accent)}

/* ---------- 排查步骤 ---------- */
.steps-wrap{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--g-soft);
  padding:36px 32px 30px;
  box-shadow:var(--sh-1);
}
.steps{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
  counter-reset:step;
}
.step{
  position:relative;
  padding-top:26px;
  counter-increment:step;
}
.step::before{
  content:"";
  position:absolute;
  top:7px;
  left:0;
  right:0;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--brand-300) 0%,var(--brand-100) 100%);
}
.step::after{
  content:"";
  position:absolute;
  top:0;
  left:0;
  width:16px;
  height:16px;
  border-radius:50%;
  background:var(--surface);
  border:3px solid var(--brand-500);
}
.step h3{
  font-size:17px;
  font-weight:600;
  line-height:1.5;
  margin-bottom:8px;
}
.step h3 span{
  display:inline-block;
  font-family:var(--f-num);
  font-size:13px;
  font-weight:700;
  color:var(--brand-700);
  margin-right:6px;
}
.step p{font-size:14px;line-height:1.75;color:var(--ink-2)}

/* ---------- FAQ ---------- */
.faq-card{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--surface);
  box-shadow:var(--sh-1);
  padding:6px 30px 10px;
}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:20px 0;
  font-size:18px;
  font-weight:600;
  line-height:1.55;
  color:var(--ink);
  cursor:pointer;
  list-style:none;
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand-700)}
.faq-item[open] summary{color:var(--brand-700)}
.faq-icon{
  position:relative;
  flex:0 0 auto;
  width:28px;
  height:28px;
  border-radius:50%;
  background:var(--brand-100);
  transition:background .2s ease;
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--brand-700);
  border-radius:2px;
  transition:transform .22s ease,opacity .22s ease;
}
.faq-icon::before{width:12px;height:2px;top:13px;left:8px}
.faq-icon::after{width:2px;height:12px;top:8px;left:13px}
.faq-item[open] .faq-icon{background:var(--brand-300)}
.faq-item[open] .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-a{
  padding:0 0 20px;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-2);
  max-width:860px;
}
.faq-a strong{color:var(--ink);font-weight:600}

/* ---------- 联系区 ---------- */
.contact-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:28px;
  align-items:start;
}
.contact-info{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--surface);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.contact-info figure{margin:0}
.contact-info img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:0;
}
.contact-info .info-body{padding:26px 28px 28px}
.contact-info h3{
  font-size:20px;
  font-weight:600;
  margin-bottom:10px;
}
.contact-info p{font-size:15px;line-height:1.8;color:var(--ink-2)}
.info-list{margin-top:18px;border-top:1px solid var(--line);padding-top:16px}
.info-list li{
  display:flex;
  justify-content:space-between;
  gap:14px;
  padding:9px 0;
  font-size:14px;
  color:var(--ink-2);
  border-bottom:1px dashed var(--line);
}
.info-list li:last-child{border-bottom:0}
.info-list strong{color:var(--ink);font-weight:600}
.contact-form{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--surface);
  box-shadow:var(--sh-1);
  padding:30px 30px 28px;
}
.contact-form h3{font-size:20px;font-weight:600;margin-bottom:6px}
.form-sub{font-size:14px;color:var(--ink-3);margin-bottom:22px}
.field{margin-bottom:18px}
.field label{
  display:block;
  font-size:14px;
  font-weight:600;
  color:var(--ink);
  margin-bottom:8px;
}
.field input,
.field textarea{
  width:100%;
  height:44px;
  padding:0 14px;
  border:1.5px solid var(--line);
  border-radius:12px;
  background:var(--surface);
  font-family:inherit;
  font-size:15px;
  color:var(--ink);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{
  height:auto;
  min-height:118px;
  padding:12px 14px;
  line-height:1.7;
  resize:vertical;
}
.field input::placeholder,
.field textarea::placeholder{color:var(--ink-3)}
.field input:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--brand-500);
  box-shadow:0 0 0 3px var(--brand-100);
}
.form-note{
  margin-top:14px;
  font-size:13px;
  line-height:1.7;
  color:var(--ink-3);
}

/* ---------- CTA 通栏 ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-lg);
  background:var(--g-brand);
  padding:40px 44px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  box-shadow:var(--sh-2);
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.06) 0 1px,transparent 1px 14px);
  pointer-events:none;
}
.cta-band h2{
  position:relative;
  z-index:2;
  color:#fff;
  font-size:24px;
  line-height:1.5;
  font-weight:700;
  margin-bottom:8px;
}
.cta-band p{
  position:relative;
  z-index:2;
  color:rgba(255,255,255,.82);
  font-size:15px;
  margin:0;
}
.cta-band .btn-main{position:relative;z-index:2;flex:0 0 auto}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand-900);
  color:rgba(255,255,255,.72);
  padding:64px 0 26px;
  margin-top:16px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:40px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:16px;
}
.footer-brand strong{
  color:#fff;
  font-size:17px;
  font-weight:600;
  letter-spacing:-.2px;
}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.72)}
.footer-col h4{
  color:#fff;
  font-size:15px;
  font-weight:600;
  margin-bottom:16px;
}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{
  font-size:14px;
  color:rgba(255,255,255,.72);
  text-underline-offset:4px;
}
.footer-col ul a:hover{color:var(--brand-300);text-decoration:underline}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding-top:20px;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px;
  font-size:12px;
  color:rgba(255,255,255,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .page-banner h1{font-size:34px}
}
@media (max-width:991px){
  :root{--section-gap:64px}
  .topbar{gap:14px;height:62px}
  .topbar-search{display:none}
  .topbar-actions{margin-left:auto}
  .navtabs-inner{height:44px}
  .page-banner{padding:36px 30px}
  .page-banner .inner{grid-template-columns:1fr;gap:28px}
  .page-banner h1{font-size:30px}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px 20px}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 30px}
}
@media (max-width:767px){
  :root{--section-gap:52px}
  .container{padding-left:16px;padding-right:16px}
  .brand-text{font-size:15px}
  .brand-mark{width:36px;height:36px;border-radius:10px;font-size:14px}
  .btn-main{padding:14px 26px;font-size:15px}
  .btn-main.sm{padding:10px 18px;font-size:14px}
  .topbar-actions{gap:12px}
  .top-link-login{font-size:14px}
  .section-head h2{font-size:23px}
  .page-banner{padding:28px 22px;border-radius:22px}
  .page-banner h1{font-size:25px;line-height:1.34}
  .page-banner .lead{font-size:15px}
  .banner-side{padding:20px}
  .group-grid{grid-template-columns:1fr;gap:18px}
  .qgroup{padding:22px 20px 16px}
  .qgroup-num{font-size:34px}
  .steps-wrap{padding:26px 22px 20px}
  .steps{grid-template-columns:1fr;gap:22px}
  .faq-card{padding:4px 18px 8px}
  .faq-item summary{font-size:16px;padding:18px 0}
  .faq-a{font-size:15px;padding-bottom:18px}
  .contact-form{padding:24px 20px 22px}
  .cta-band{padding:28px 22px;border-radius:22px}
  .cta-band h2{font-size:20px}
  .cta-band .btn-main{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding:44px 0 22px}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media (max-width:359px){
  .page-banner h1{font-size:22px}
  .brand-text{display:none}
}