/* roulang page: index */
:root{
  --brand:#0B6B5E;
  --brand-dark:#08423A;
  --brand-light:#17A08F;
  --brand-mint:#3FC6A5;
  --amber:#F0A93B;
  --amber-soft:#FFD79A;
  --coral:#FF6B5A;
  --success:#128A6B;
  --warn:#C8871B;
  --bg:#F7F5EF;
  --card:#FFFFFF;
  --surface:#EFEDE4;
  --ink:#0F1A18;
  --text:#33403D;
  --muted:#6B7A76;
  --line:#E3E1D8;
  --dark:#07201C;
  --reverse:#F3F7F5;
  --r-sm:14px;
  --r:20px;
  --r-lg:28px;
  --r-hero:32px;
  --r-pill:999px;
  --sd1:0 1px 2px rgba(8,66,58,.06),0 8px 24px -12px rgba(8,66,58,.18);
  --sd2:0 18px 44px -18px rgba(8,66,58,.28);
  --sd3:0 30px 70px -28px rgba(8,66,58,.35);
  --grad:linear-gradient(128deg,#0B6B5E 0%,#17A08F 52%,#3FC6A5 100%);
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
svg{display:block}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(23,160,143,.55);outline-offset:2px;border-radius:6px}

/* ---------- 顶部状态条 ---------- */
.topbar{background:var(--dark);color:var(--reverse);font-size:13px;min-height:40px;display:flex;align-items:center}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.topbar-left{display:flex;align-items:center;gap:10px;min-height:40px}
.status-label{display:inline-flex;align-items:center;gap:6px;background:rgba(255,215,154,.14);color:var(--amber-soft);border-radius:var(--r-pill);padding:2px 10px;font-weight:700}
.status-dot{width:7px;height:7px;border-radius:50%;background:var(--brand-mint);box-shadow:0 0 0 3px rgba(63,198,165,.22)}
.countdown{font-variant-numeric:tabular-nums;font-weight:800;color:var(--amber-soft)}
.topbar-right{display:flex;align-items:center;gap:14px}
.topbar-right a{color:rgba(243,247,245,.78)}
.topbar-right a:hover{color:var(--brand-mint)}
.topbar-close{width:28px;height:28px;border-radius:50%;border:1px solid rgba(255,255,255,.18);background:none;cursor:pointer;display:grid;place-items:center;min-width:28px}
.topbar-close:hover{background:rgba(255,255,255,.1)}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid transparent;transition:box-shadow .24s ease-out,border-color .24s ease-out}
.site-header.is-scrolled{box-shadow:var(--sd1);border-bottom-color:var(--line)}
.nav{height:72px}
.nav .container{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:var(--ink);letter-spacing:-.01em}
.logo-mark{width:34px;height:34px;border-radius:11px;background:var(--grad);display:grid;place-items:center;box-shadow:var(--sd1);flex:0 0 34px}
.nav-links{display:flex;align-items:center;gap:2px}
.nav-links a{display:inline-flex;align-items:center;height:40px;padding:0 14px;border-radius:var(--r-pill);font-size:15px;color:var(--text);position:relative;transition:background .2s ease-out,color .2s ease-out}
.nav-links a:hover{background:var(--surface);color:var(--brand-dark)}
.nav-links a.active{color:var(--brand-dark);font-weight:700}
.nav-links a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:1px;height:3px;border-radius:3px;background:var(--grad)}
.nav-actions{display:flex;align-items:center;gap:10px}
.hamburger{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;cursor:pointer;place-items:center}
.hamburger:hover{background:var(--surface)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;
  background:none;transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out,color .2s ease-out,border-color .2s ease-out;
  white-space:nowrap;
}
.btn svg{width:16px;height:16px}
.btn-primary{background:var(--grad);background-size:150% 100%;background-position:0% 50%;color:#fff;box-shadow:var(--sd2)}
.btn-primary:hover{transform:translateY(-2px);background-position:22% 50%;box-shadow:var(--sd3)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:#fff;color:var(--brand-dark);border-color:var(--brand)}
.btn-outline:hover{background:var(--surface);transform:translateY(-2px)}
.btn-ghost{background:rgba(11,107,94,.08);color:var(--brand-dark)}
.btn-ghost:hover{background:rgba(11,107,94,.16)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.6;filter:saturate(.6);pointer-events:none}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 12px;border-radius:var(--r-pill);font-size:13px;font-weight:700;line-height:1}
.badge-amber{background:var(--amber-soft);color:#4A3208}
.badge-line{background:#fff;border:1px solid var(--brand);color:var(--brand-dark)}
.badge-dark{background:var(--dark);color:var(--reverse)}
.badge-soft{background:rgba(11,107,94,.1);color:var(--brand-dark)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:72px 0 88px}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(128deg,rgba(11,107,94,.12) 0%,rgba(23,160,143,.10) 55%,rgba(63,198,165,.09) 100%);z-index:0}
.hero::after{content:"";position:absolute;width:640px;height:640px;right:-200px;top:-240px;border-radius:50%;background:radial-gradient(circle,rgba(23,160,143,.30),rgba(23,160,143,0) 66%);z-index:0}
.hero .container{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(2.1rem,4.8vw,3.35rem);line-height:1.15;font-weight:800;letter-spacing:-.02em;color:var(--ink);margin:18px 0 20px}
.hero-sub{font-size:17.5px;line-height:1.9;color:var(--muted);max-width:560px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}
.stat{display:flex;flex-direction:column;gap:2px;background:#fff;border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sd1);padding:12px 18px;min-width:134px}
.stat b{font-size:26px;line-height:1.15;color:var(--brand-dark);font-variant-numeric:tabular-nums;font-weight:800}
.stat b i{font-style:normal;font-size:13px;font-weight:600;color:var(--muted);margin-left:3px}
.stat span{font-size:13px;color:var(--muted);line-height:1.5}
.hero-media{position:relative;border-radius:var(--r-hero);overflow:hidden;box-shadow:var(--sd3);background:#fff}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.float-card{position:absolute;right:16px;bottom:16px;display:flex;align-items:center;gap:10px;background:rgba(255,255,255,.96);border-radius:var(--r);padding:12px 16px;box-shadow:var(--sd2);min-width:196px}
.float-ico{width:34px;height:34px;border-radius:50%;background:var(--grad);display:grid;place-items:center;color:#fff;flex:0 0 34px}
.float-card strong{display:block;font-size:14px;color:var(--ink);line-height:1.4}
.float-card span{font-size:12.5px;color:var(--muted);line-height:1.4}

/* ---------- 板块 ---------- */
.section{padding:96px 0}
.section.is-surface{background:var(--surface)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:48px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--brand);letter-spacing:.06em}
.eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--grad)}
.section-head h2{font-size:clamp(1.6rem,3vw,2.25rem);line-height:1.25;font-weight:750;color:var(--ink);margin:12px 0 12px;letter-spacing:-.01em}
.section-head p{color:var(--muted);font-size:15.5px;max-width:620px}
.section-head .head-action{flex:0 0 auto;padding-bottom:6px}

/* ---------- 权益对比 ---------- */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.plan{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sd1);transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;display:flex;flex-direction:column}
.plan:hover{transform:translateY(-2px);box-shadow:var(--sd2);border-color:var(--brand-light)}
.plan.featured{border:2px solid transparent;background-image:linear-gradient(#fff,#fff),var(--grad);background-origin:border-box;background-clip:padding-box,border-box;box-shadow:var(--sd3);transform:translateY(-12px)}
.plan.featured:hover{transform:translateY(-14px)}
.plan-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:8px}
.plan-name{font-size:19px;font-weight:800;color:var(--ink)}
.plan-price{font-size:15px;color:var(--brand-dark);font-weight:700;margin-bottom:20px}
.plan-price i{font-style:normal;font-size:13px;color:var(--muted);font-weight:600;margin-left:6px}
.plan-list{display:flex;flex-direction:column;margin:6px 0 24px}
.plan-row{display:flex;align-items:center;gap:10px;padding:11px 0;font-size:14.5px;border-bottom:1px dashed var(--line);color:var(--text)}
.plan-row:last-child{border-bottom:0}
.plan-row.is-off{color:var(--muted)}
.row-ico{width:20px;height:20px;border-radius:50%;flex:0 0 20px;display:grid;place-items:center;background:rgba(11,107,94,.12);color:var(--brand)}
.row-ico::before{content:"";width:9px;height:5px;border-left:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(-45deg) translate(1px,-2px)}
.row-ico.is-off{background:#EDEBE3;color:#B9B7AC}
.row-ico.is-off::before{width:9px;height:2px;border:0;background:currentColor;border-radius:2px;transform:none}
.plan-foot{margin-top:auto}

/* ---------- 等级亮点 ---------- */
.levels{display:grid;grid-template-columns:repeat(6,1fr);gap:24px}
.level{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sd1);transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out,background .2s ease-out;display:flex;flex-direction:column}
.level:hover{transform:translateY(-2px);box-shadow:var(--sd2);border-color:var(--brand-light);background:#FFFDF8}
.level:nth-child(1){grid-column:span 4}
.level:nth-child(2){grid-column:span 2}
.level:nth-child(3){grid-column:span 3}
.level:nth-child(4){grid-column:span 3}
.level-ico{width:48px;height:48px;border-radius:14px;background:rgba(11,107,94,.09);display:grid;place-items:center;color:var(--brand);margin-bottom:18px}
.level h3{font-size:1.25rem;line-height:1.4;font-weight:700;color:var(--ink);margin-bottom:10px}
.level p{color:var(--muted);font-size:15px;margin-bottom:20px}
.level .badge{align-self:flex-start;margin-top:auto}

/* ---------- 内容预览 ---------- */
.previews{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.preview{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sd1);transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;display:flex;flex-direction:column}
.preview:hover{transform:translateY(-2px);box-shadow:var(--sd2);border-color:var(--brand-light)}
.preview-cover{position:relative;overflow:hidden}
.preview-cover img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .2s ease-out}
.preview:hover .preview-cover img{transform:scale(1.03)}
.cat-tag{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.94);color:var(--brand-dark);font-size:12.5px;font-weight:700;border-radius:var(--r-pill);padding:4px 12px}
.lock-badge{position:absolute;right:14px;top:14px;display:inline-flex;align-items:center;gap:5px;background:rgba(7,32,28,.72);color:var(--amber-soft);font-size:12px;font-weight:700;border-radius:var(--r-pill);padding:4px 11px}
.lock-overlay{position:absolute;inset:0;background:linear-gradient(128deg,rgba(11,107,94,.55) 0%,rgba(23,160,143,.42) 60%,rgba(63,198,165,.36) 100%);pointer-events:none}
.preview-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.preview-body h3{font-size:17px;font-weight:700;color:var(--ink);margin-bottom:10px}
.preview-body p{font-size:14.5px;color:var(--muted);margin-bottom:18px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.preview-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;border-top:1px solid var(--line);padding-top:14px}
.preview-meta a{color:var(--brand-dark);font-weight:700}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sd1);transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sd2);border-color:var(--brand-light)}
.news-link{display:flex;flex-direction:column;height:100%}
.news-cover{position:relative;overflow:hidden}
.news-cover img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .2s ease-out}
.news-card:hover .news-cover img{transform:scale(1.03)}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.news-title{font-size:17px;font-weight:700;color:var(--ink);line-height:1.5;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-sum{font-size:14.5px;color:var(--muted);margin-bottom:18px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;border-top:1px solid var(--line);padding-top:14px}
.news-meta .go{color:var(--brand-dark);font-weight:700}
.empty-state{background:#fff;border:1px dashed var(--line);border-radius:var(--r-lg);padding:56px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px;box-shadow:var(--sd1)}
.empty-state svg{width:44px;height:44px;color:var(--brand-light)}
.empty-state p{font-size:15px;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start}
.faq-intro h2{font-size:clamp(1.6rem,3vw,2.25rem);line-height:1.25;font-weight:750;color:var(--ink);margin:12px 0 16px;letter-spacing:-.01em}
.faq-intro p{color:var(--muted);font-size:15.5px;max-width:420px}
.faq-intro .badge{margin-top:20px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px;padding:16px 0;background:none;border:0;text-align:left;font-size:16.5px;font-weight:700;color:var(--ink);cursor:pointer;transition:color .2s ease-out}
.faq-q:hover{color:var(--brand-dark)}
.faq-q .arrow{flex:0 0 22px;color:var(--brand);transition:transform .25s ease-out}
.faq-item.is-open .faq-q .arrow{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease-out}
.faq-item.is-open .faq-a{max-height:340px}
.faq-a p{padding:0 0 20px;font-size:15px;color:var(--muted);border-top:1px solid var(--line);padding-top:16px;margin-top:0}

/* ---------- CTA ---------- */
.cta-section{padding:0 0 96px}
.cta-card{position:relative;overflow:hidden;background:var(--dark);border-radius:var(--r-lg);padding:48px;display:grid;grid-template-columns:6fr 6fr;gap:48px;color:var(--reverse);box-shadow:var(--sd3)}
.cta-card::before{content:"";position:absolute;width:560px;height:560px;left:-160px;top:-240px;border-radius:50%;background:radial-gradient(circle,rgba(23,160,143,.55),rgba(23,160,143,0) 66%)}
.cta-card::after{content:"";position:absolute;width:420px;height:420px;right:-140px;bottom:-200px;border-radius:50%;background:radial-gradient(circle,rgba(240,169,59,.28),rgba(240,169,59,0) 68%)}
.cta-copy,.cta-form{position:relative;z-index:1}
.cta-copy h2{font-size:clamp(1.6rem,3vw,2.15rem);line-height:1.28;font-weight:750;color:#fff;margin:14px 0 16px}
.cta-copy p{color:rgba(243,247,245,.76);font-size:15.5px;max-width:460px}
.cta-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;color:rgba(243,247,245,.72);margin-bottom:8px}
.field input{width:100%;height:48px;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.08);color:#fff;font-size:15px;padding:0 16px;transition:border-color .2s ease-out,box-shadow .2s ease-out}
.field input::placeholder{color:rgba(243,247,245,.45)}
.field input:focus{outline:none;border-color:var(--brand-mint);box-shadow:0 0 0 3px rgba(63,198,165,.3)}
.field.has-error input{border-color:var(--coral);box-shadow:0 0 0 3px rgba(255,107,90,.25)}
.field-msg{font-size:13px;color:var(--coral);margin-top:8px;display:none}
.field.has-error .field-msg{display:block}
.checkline{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:rgba(243,247,245,.72);margin:16px 0 20px;line-height:1.7}
.checkline input{width:20px;height:20px;flex:0 0 20px;margin-top:2px;accent-color:#17A08F}
.hint-line{margin-top:14px;font-size:13px;color:rgba(243,247,245,.6)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:rgba(243,247,245,.72);padding:72px 0 0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.foot-col h3{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.foot-brand .logo{color:#fff;margin-bottom:16px}
.foot-brand .logo-mark{box-shadow:none}
.foot-brand p{font-size:14px;color:rgba(243,247,245,.66);max-width:300px}
.foot-col a{display:block;padding:6px 0;font-size:14px;color:rgba(243,247,245,.72);transition:color .2s ease-out}
.foot-col a:hover{color:var(--brand-mint)}
.foot-col .contact-item{display:block;padding:6px 0;font-size:14px}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(243,247,245,.6)}
.foot-bottom a{color:rgba(243,247,245,.78)}
.foot-bottom a:hover{color:var(--brand-mint)}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(7,32,28,.45);opacity:0;visibility:hidden;transition:opacity .24s ease-out,visibility .24s ease-out;z-index:90}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;bottom:0;width:86%;max-width:380px;background:#fff;border-radius:24px 0 0 24px;transform:translateX(102%);transition:transform .28s ease-out;z-index:100;padding:22px;overflow-y:auto;box-shadow:var(--sd3)}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;cursor:pointer;display:grid;place-items:center}
.drawer-close:hover{background:var(--surface)}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:22px}
.drawer-nav a{padding:13px 14px;border-radius:var(--r-sm);font-size:15.5px;color:var(--text)}
.drawer-nav a:hover{background:var(--surface)}
.drawer-nav a.active{background:rgba(11,107,94,.09);color:var(--brand-dark);font-weight:700}
.drawer-cta{display:flex;flex-direction:column;gap:12px}
.drawer-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .hero-grid{gap:40px}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .nav-links,.nav-actions .btn-outline{display:none}
  .hamburger{display:grid}
  .hero{padding:56px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media{order:2}
  .hero-sub{max-width:none}
  .levels{grid-template-columns:repeat(2,1fr)}
  .level:nth-child(1){grid-column:span 2}
  .level:nth-child(2),.level:nth-child(3),.level:nth-child(4){grid-column:span 1}
  .plans{grid-template-columns:1fr;gap:20px}
  .plan.featured{transform:none}
  .plan.featured:hover{transform:translateY(-2px)}
  .previews,.news-grid{grid-template-columns:repeat(2,1fr)}
  .faq-wrap{grid-template-columns:1fr;gap:32px}
  .cta-card{grid-template-columns:1fr;gap:32px;padding:36px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-section{padding-bottom:72px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 18px}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:32px}
  .section-head .head-action{padding-bottom:0;width:100%}
  .section-head .head-action .btn{width:100%}
  .hero h1{margin:14px 0 16px}
  .hero-cta .btn{flex:1 1 auto}
  .stat{flex:1 1 calc(50% - 8px);min-width:0}
  .previews,.news-grid{grid-template-columns:1fr}
  .levels{grid-template-columns:1fr}
  .level:nth-child(1),.level:nth-child(2),.level:nth-child(3),.level:nth-child(4){grid-column:span 1}
  .footer{padding-top:56px}
  .foot-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .foot-bottom{flex-direction:column;align-items:flex-start}
  .cta-card{padding:28px}
  .float-card{right:12px;bottom:12px;min-width:0;padding:10px 14px}
}
@media (max-width:479px){
  body{font-size:15.2px}
  .hero-cta{flex-direction:column}
  .hero-cta .btn{width:100%}
  .cta-form .btn{width:100%}
  .badge{height:28px;font-size:12.5px}
  .section-head h2{font-size:1.5rem}
}

/* roulang page: article */
:root{
  --brand:#0B6B5E;
  --brand-deep:#08423A;
  --brand-light:#17A08F;
  --brand-grad:linear-gradient(128deg,#0B6B5E 0%,#17A08F 52%,#3FC6A5 100%);
  --amber:#F0A93B;
  --amber-soft:#FFD79A;
  --coral:#FF6B5A;
  --success:#128A6B;
  --warn:#C8871B;
  --bg:#F7F5EF;
  --paper:#FFFFFF;
  --surface:#EFEDE4;
  --dark:#07201C;
  --ink:#0F1A18;
  --text:#33403D;
  --muted:#6B7A76;
  --inverse:#F3F7F5;
  --line:#E3E1D8;
  --sd1:0 1px 2px rgba(8,66,58,.06),0 8px 24px -12px rgba(8,66,58,.18);
  --sd2:0 18px 44px -18px rgba(8,66,58,.28);
  --sd3:0 30px 70px -28px rgba(8,66,58,.35);
  --r-card:20px;
  --r-lg:28px;
  --r-hero:32px;
  --r-btn:999px;
  --r-input:14px;
  --s1:4px; --s2:8px; --s3:12px; --s4:16px; --s5:24px; --s6:32px; --s7:48px; --s8:64px; --s9:96px;
  --ease:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:750;letter-spacing:-0.01em}
p{margin:0 0 1em}
a{color:var(--brand);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--brand-light)}
img{max-width:100%;display:block;height:auto}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font-family:inherit;font-size:1rem}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(23,160,143,.45);border-radius:6px}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ---------- 顶部状态条 ---------- */
.topbar{background:var(--dark);color:#CFE2DC;font-size:13px;height:40px;display:flex;align-items:center}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%}
.topbar-left{display:flex;align-items:center;gap:10px;min-width:0}
.topbar-right{display:flex;align-items:center;gap:14px;flex-shrink:0}
.topbar-right a{color:var(--amber-soft)}
.topbar-right a:hover{color:#fff}
.status-dot{width:8px;height:8px;border-radius:50%;background:#3FC6A5;box-shadow:0 0 0 4px rgba(63,198,165,.18);flex-shrink:0}
.status-label{color:#fff;font-weight:500}
.countdown{font-variant-numeric:tabular-nums;color:var(--amber-soft);font-weight:700}
.topbar-close{width:24px;height:24px;display:grid;place-items:center;border-radius:50%;color:#9FB8B1;transition:background var(--ease),color var(--ease)}
.topbar-close:hover{background:rgba(255,255,255,.1);color:#fff}
.topbar.is-hidden{display:none}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60}
.nav{background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid transparent;transition:box-shadow var(--ease),border-color var(--ease)}
.site-header.is-stuck .nav{border-bottom-color:var(--line);box-shadow:var(--sd1)}
.nav .container{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:1.06rem;font-weight:800;color:var(--ink);letter-spacing:-0.01em;white-space:nowrap}
.logo:hover{color:var(--brand)}
.logo-mark{width:32px;height:32px;border-radius:10px;background:var(--brand-grad);display:grid;place-items:center;box-shadow:var(--sd1);flex-shrink:0}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{position:relative;display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:10px;color:var(--text);font-size:.95rem;font-weight:500;transition:color var(--ease),background var(--ease)}
.nav-links a:hover{color:var(--brand);background:var(--surface)}
.nav-links a.active{color:var(--brand-deep);font-weight:700}
.nav-links a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:-16px;height:3px;border-radius:3px;background:var(--brand-grad)}
.nav-actions{display:flex;align-items:center;gap:10px}
.hamburger{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:var(--paper);align-items:center;justify-content:center;transition:background var(--ease),border-color var(--ease)}
.hamburger:hover{background:var(--surface);border-color:var(--brand-light)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--r-btn);font-size:.95rem;font-weight:700;white-space:nowrap;transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease)}
.btn-sm{height:40px;padding:0 18px;font-size:.9rem}
.btn-primary{background:var(--brand-grad);background-size:140% 100%;background-position:0 0;color:#fff;box-shadow:var(--sd2)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);background-position:100% 0;box-shadow:var(--sd3)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:var(--paper);color:var(--brand-deep);border:1px solid var(--brand-light)}
.btn-outline:hover{background:var(--surface);color:var(--brand-deep);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--brand-deep);padding:0 6px;height:auto}
.btn-ghost:hover{color:var(--brand-light)}
.btn-ghost svg{transition:transform var(--ease)}
.btn-ghost:hover svg{transform:translateX(3px)}
.btn[disabled],.btn.is-disabled{filter:saturate(40%);pointer-events:none}

/* ---------- 徽章 / 标签 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:var(--r-btn);font-size:13px;font-weight:600;line-height:1}
.badge-amber{background:var(--amber-soft);color:#4A3208}
.badge-line{background:var(--paper);border:1px solid var(--brand-light);color:var(--brand-deep)}
.badge-soft{background:var(--surface);color:var(--muted)}
.tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-btn);background:rgba(11,107,94,.09);color:var(--brand-deep);font-size:13px;font-weight:600}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;height:32px;font-size:13px;color:var(--muted)}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:#C4C0B4}
.crumb .current{color:var(--muted);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头部 ---------- */
.page-head{padding:40px 0 0}
.page-head .crumb{margin-bottom:22px}
.head-main{max-width:860px}
.head-main h1{font-size:clamp(2rem,4.2vw,3.15rem);line-height:1.18;font-weight:800;letter-spacing:-0.02em;margin:14px 0 18px}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;font-size:13.5px;color:var(--muted);padding-top:6px}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#CFCBBE;display:inline-block}
.meta-row .num{font-weight:600;color:var(--text)}

/* ---------- 正文区 ---------- */
.article-body{padding:40px 0 0}
.cover{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sd2);background:var(--surface)}
.cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.read-wrap{max-width:760px;margin:0 auto;background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sd1);padding:56px 56px 48px;margin-top:-56px;position:relative}
.prose{font-size:17px;line-height:1.95;color:var(--text);word-break:break-word}
.prose > *:first-child{margin-top:0}
.prose h2{position:relative;font-size:1.45rem;line-height:1.4;font-weight:750;margin:44px 0 16px;padding-left:16px}
.prose h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;background:var(--brand-grad)}
.prose h3{font-size:1.25rem;line-height:1.4;font-weight:700;margin:32px 0 12px}
.prose h4{font-size:1.08rem;font-weight:700;margin:24px 0 10px;color:var(--brand-deep)}
.prose p{margin:0 0 20px}
.prose a{border-bottom:1px solid rgba(23,160,143,.4)}
.prose a:hover{border-bottom-color:var(--brand)}
.prose strong{color:var(--ink);font-weight:700}
.prose ul,.prose ol{margin:0 0 22px;padding-left:2px}
.prose ul li,.prose ol li{position:relative;padding-left:26px;margin-bottom:10px}
.prose ul li::before{content:"";position:absolute;left:6px;top:.72em;width:7px;height:7px;border-radius:50%;background:var(--brand-light)}
.prose ol{counter-reset:li}
.prose ol li{counter-increment:li}
.prose ol li::before{content:counter(li);position:absolute;left:0;top:.15em;width:18px;height:18px;display:grid;place-items:center;border-radius:6px;background:rgba(11,107,94,.1);color:var(--brand-deep);font-size:12px;font-weight:700}
.prose img{border-radius:var(--r-card);margin:26px auto;box-shadow:var(--sd1)}
.prose blockquote{margin:28px 0;padding:20px 24px;background:rgba(23,160,143,.07);border-left:4px solid var(--brand-light);border-radius:0 16px 16px 0;color:var(--brand-deep)}
.prose blockquote p:last-child{margin-bottom:0}
.prose code{background:var(--surface);padding:2px 7px;border-radius:8px;font-size:.92em;color:var(--brand-deep)}
.prose pre{background:var(--dark);color:var(--inverse);padding:20px 22px;border-radius:16px;overflow:auto;font-size:.9rem;line-height:1.7}
.prose pre code{background:none;color:inherit;padding:0}
.prose table{width:100%;border-collapse:collapse;margin:24px 0;font-size:.95rem;border:1px solid var(--line);border-radius:16px;overflow:hidden}
.prose th,.prose td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line)}
.prose th{background:var(--surface);color:var(--ink);font-weight:700}
.prose tr:last-child td{border-bottom:0}
.prose hr{border:0;height:1px;background:var(--line);margin:36px 0}

.notice{margin:26px 0;padding:18px 22px;border-radius:16px;background:rgba(240,169,59,.12);border:1px solid rgba(240,169,59,.35);color:#6A4A0D;font-size:.95rem}
.notice strong{color:#4A3208}

.empty-state{text-align:center;padding:64px 24px}
.empty-state svg{margin:0 auto 18px}
.empty-state h2{font-size:1.5rem;margin-bottom:10px}
.empty-state p{color:var(--muted);margin-bottom:24px}

/* ---------- 标签行 ---------- */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:40px;padding-top:28px;border-top:1px solid var(--line)}
.tag-row .label{font-size:13px;color:var(--muted);font-weight:600}

/* ---------- 板块标题 ---------- */
.section{padding:80px 0}
.section-title{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px}
.section-title h2{font-size:clamp(1.6rem,3vw,2.25rem);line-height:1.25;font-weight:750}
.section-title p{margin:8px 0 0;color:var(--muted);font-size:.95rem}
.section-title .more{display:inline-flex;align-items:center;gap:6px;font-size:.92rem;font-weight:600;flex-shrink:0}

/* ---------- 相关卡片 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{display:flex;flex-direction:column;background:var(--paper);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sd1);overflow:hidden;transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease)}
.card:hover{transform:translateY(-2px);border-color:var(--brand-light);box-shadow:var(--sd2)}
.card-thumb{position:relative;overflow:hidden;background:var(--surface)}
.card-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform var(--ease)}
.card:hover .card-thumb img{transform:scale(1.03)}
.card-thumb .tag{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.92);backdrop-filter:blur(4px)}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:1.08rem;line-height:1.45;font-weight:700}
.card-body p{margin:0;font-size:.92rem;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{margin-top:auto;padding-top:14px;display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--muted);border-top:1px solid var(--line)}

/* ---------- 上一篇 / 下一篇 ---------- */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.post-nav a{display:flex;flex-direction:column;gap:8px;padding:22px 24px;background:var(--paper);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sd1);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease)}
.post-nav a:hover{transform:translateY(-2px);border-color:var(--brand-light);box-shadow:var(--sd2);color:var(--brand-deep)}
.post-nav .k{font-size:12.5px;color:var(--muted);font-weight:600;letter-spacing:.02em}
.post-nav .t{font-size:1rem;font-weight:700;color:var(--ink);line-height:1.5}
.post-nav .next{align-items:flex-end;text-align:right}

/* ---------- 返回栏目 ---------- */
.back-strip{background:var(--dark);border-radius:var(--r-lg);padding:36px 40px;display:flex;align-items:center;justify-content:space-between;gap:24px;position:relative;overflow:hidden}
.back-strip::after{content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(63,198,165,.35),transparent 68%)}
.back-strip h2{color:#fff;font-size:1.35rem;margin-bottom:8px;position:relative;z-index:1}
.back-strip p{color:#A9C4BC;margin:0;font-size:.93rem;position:relative;z-index:1}
.back-strip .btn{position:relative;z-index:1;flex-shrink:0}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#A9C4BC;padding:72px 0 0;margin-top:96px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.foot-col{display:flex;flex-direction:column;gap:12px;position:relative}
.foot-col + .foot-col{padding-left:40px}
.foot-col + .foot-col::before{content:"";position:absolute;left:0;top:4px;bottom:4px;width:1px;background:rgba(255,255,255,.1)}
.foot-col h3{color:#fff;font-size:.98rem;font-weight:700;margin-bottom:4px}
.foot-col a{color:#A9C4BC;font-size:.92rem}
.foot-col a:hover{color:var(--amber-soft)}
.foot-brand .logo{color:#fff;margin-bottom:6px}
.foot-brand p{margin:0;font-size:.92rem;line-height:1.8;max-width:34ch}
.contact-item{font-size:.92rem;line-height:1.7}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);padding:22px 0 30px;display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;font-size:12.5px;color:#7E9A93}
.foot-bottom a{color:#A9C4BC}
.foot-bottom a:hover{color:var(--amber-soft)}

/* ---------- 移动端抽屉 ---------- */
.mask{position:fixed;inset:0;background:rgba(7,32,28,.45);opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);z-index:80}
.mask.open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;height:100%;width:86%;max-width:360px;background:var(--paper);border-radius:24px 0 0 24px;box-shadow:var(--sd3);transform:translateX(102%);transition:transform 260ms ease-out;z-index:90;display:flex;flex-direction:column;padding:20px 22px 28px;overflow-y:auto}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;border:1px solid var(--line)}
.drawer-close:hover{background:var(--surface)}
.drawer nav{display:flex;flex-direction:column;gap:4px;margin-bottom:22px}
.drawer nav a{padding:14px 12px;border-radius:12px;font-size:1rem;font-weight:600;color:var(--ink)}
.drawer nav a.active{background:rgba(11,107,94,.08);color:var(--brand-deep)}
.drawer nav a:hover{background:var(--surface)}
.drawer .drawer-cta{display:flex;flex-direction:column;gap:12px;margin-top:auto}
.drawer .drawer-cta .btn{width:100%}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 22px}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .hamburger{display:flex}
  .nav-actions .btn-outline{display:none}
  .section{padding:72px 0}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .foot-col + .foot-col{padding-left:0}
  .foot-col + .foot-col::before{display:none}
  .card-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:767px){
  body{font-size:16px}
  .topbar{height:auto;padding:8px 0;font-size:12px}
  .topbar .container{flex-direction:column;align-items:flex-start;gap:6px}
  .topbar-right{width:100%;justify-content:space-between}
  .nav .container{height:64px;gap:12px}
  .logo{font-size:.98rem}
  .page-head{padding:28px 0 0}
  .head-main h1{font-size:clamp(1.6rem,6vw,2.1rem)}
  .read-wrap{padding:32px 20px 28px;margin-top:-32px;border-radius:var(--r-card)}
  .prose{font-size:16.5px;line-height:1.9}
  .section{padding:56px 0}
  .section-title{flex-direction:column;align-items:flex-start;gap:12px}
  .card-grid{grid-template-columns:1fr}
  .post-nav{grid-template-columns:1fr}
  .post-nav .next{align-items:flex-start;text-align:left}
  .back-strip{flex-direction:column;align-items:flex-start;padding:28px 24px}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column}
  .site-footer{margin-top:64px;padding-top:56px}
}
@media (max-width:480px){
  .container{padding:0 18px}
  .btn{width:100%}
  .nav-actions .btn{width:auto}
  .btn-sm{padding:0 16px;font-size:.86rem}
  .card-body{padding:18px 18px 20px}
}

/* roulang page: category1 */
:root{
  --brand:#0B6B5E;
  --brand-d:#08423A;
  --brand-l:#17A08F;
  --grad:linear-gradient(128deg,#0B6B5E 0%,#17A08F 52%,#3FC6A5 100%);
  --amber:#F0A93B;
  --amber-l:#FFD79A;
  --coral:#FF6B5A;
  --ok:#128A6B;
  --warn:#C8871B;
  --bg:#F7F5EF;
  --paper:#FFFFFF;
  --sub:#EFEDE4;
  --dark:#07201C;
  --ink:#0F1A18;
  --text:#33403D;
  --muted:#6B7A76;
  --inv:#F3F7F5;
  --line:#E3E1D8;
  --sd1:0 1px 2px rgba(8,66,58,.06),0 8px 24px -12px rgba(8,66,58,.18);
  --sd2:0 18px 44px -18px rgba(8,66,58,.28);
  --sd3:0 30px 70px -28px rgba(8,66,58,.35);
  --r:20px;
  --r-lg:28px;
  --r-hero:32px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-l)}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:750;line-height:1.25;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;cursor:pointer}
input{font:inherit}
:focus-visible{outline:3px solid rgba(23,160,143,.45);outline-offset:2px;border-radius:8px}
.skip{position:absolute;left:-9999px;top:0;background:#fff;padding:10px 16px;border-radius:0 0 12px 0;z-index:200}
.skip:focus{left:0}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
.section{padding:96px 0}
.section-tight{padding:64px 0}

/* ============ 顶部状态条 ============ */
.topbar{background:var(--dark);color:#C9D6D2;font-size:13px;height:40px;display:flex;align-items:center;position:relative;z-index:70}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;height:40px}
.topbar-left{display:flex;align-items:center;gap:12px;flex-wrap:nowrap;overflow:hidden;white-space:nowrap}
.status-dot{width:7px;height:7px;border-radius:50%;background:#3FC6A5;box-shadow:0 0 0 4px rgba(63,198,165,.18);flex:none}
.status-label{color:#F3F7F5;font-weight:600}
.countdown{font-variant-numeric:tabular-nums;color:var(--amber-l);font-weight:700}
.topbar-right{display:flex;align-items:center;gap:14px;flex:none}
.topbar-right a{color:#C9D6D2;font-size:13px}
.topbar-right a:hover{color:#3FC6A5}
.topbar-close{width:28px;height:28px;display:grid;place-items:center;border-radius:50%;background:transparent;border:1px solid rgba(255,255,255,.18);color:#C9D6D2;transition:.2s}
.topbar-close:hover{background:rgba(255,255,255,.1);color:#fff}

/* ============ 导航 ============ */
.site-header{position:relative;z-index:60}
.nav{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.93);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid transparent;transition:box-shadow .25s ease,border-color .25s ease}
.nav.scrolled{border-bottom-color:var(--line);box-shadow:var(--sd1)}
.nav .container{display:flex;align-items:center;gap:8px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:var(--ink);letter-spacing:-.02em}
.logo:hover{color:var(--brand-d)}
.logo-mark{width:32px;height:32px;border-radius:10px;background:var(--grad);display:grid;place-items:center;box-shadow:var(--sd1);flex:none}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:14px}
.nav-links a{display:inline-block;padding:9px 14px;border-radius:999px;color:var(--text);font-size:15px;font-weight:500;position:relative;transition:background .2s ease,color .2s ease}
.nav-links a:hover{background:var(--sub);color:var(--brand-d)}
.nav-links a.active{color:var(--brand-d);font-weight:700}
.nav-links a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:1px;height:3px;border-radius:999px;background:var(--grad)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.hamburger{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;transition:.2s}
.hamburger:hover{background:var(--sub)}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:999px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;white-space:nowrap;transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out,color .2s ease-out}
.btn:disabled{filter:saturate(.4);cursor:not-allowed}
.btn-primary{background:var(--grad);background-size:140% 100%;background-position:0 0;color:#fff;box-shadow:var(--sd2)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--sd3);background-position:60% 0}
.btn-outline{background:#fff;color:var(--brand-d);border-color:rgba(11,107,94,.35);border-radius:14px}
.btn-outline:hover{background:var(--sub);color:var(--brand-d);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.3)}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-lg{padding:15px 30px;font-size:16px}
.btn-block{width:100%}

/* ============ 徽章 / 标签 ============ */
.badge{display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:999px;font-size:13px;font-weight:600;line-height:1}
.badge-amber{background:var(--amber-l);color:#5C3B00}
.badge-line{background:#fff;color:var(--brand-d);border:1px solid rgba(11,107,94,.3)}
.badge-soft{background:rgba(23,160,143,.12);color:var(--brand-d)}
.badge-coral{background:rgba(255,107,90,.14);color:#B03A2C}
.tag{display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--text);font-size:13.5px;transition:.2s}
.tag:hover{border-color:var(--brand-l);color:var(--brand-d)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--brand-d);background:rgba(23,160,143,.12);padding:6px 14px;border-radius:999px}

/* ============ 页头 ============ */
.page-head{padding:48px 0 56px;background:radial-gradient(720px 340px at 88% -20%,rgba(63,198,165,.24),transparent 70%),linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%);border-bottom:1px solid var(--line)}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);line-height:32px;margin-bottom:22px;flex-wrap:wrap}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--brand-d)}
.crumbs .sep{color:#BFBCB1}
.head-grid{display:grid;grid-template-columns:1.55fr 1fr;gap:48px;align-items:end}
.page-head h1{font-size:clamp(2.1rem,4.4vw,3.15rem);line-height:1.15;font-weight:800;letter-spacing:-.02em;margin:18px 0 16px}
.lead{font-size:17px;line-height:1.9;color:var(--text);max-width:640px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.search-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--sd2)}
.search-card h2{font-size:16px;margin-bottom:6px}
.search-card p{font-size:13.5px;color:var(--muted);margin-bottom:14px}
.search-form{display:flex;gap:10px}
.search-form input{flex:1;min-width:0;height:48px;padding:0 16px;border-radius:14px;border:1px solid var(--line);background:#FCFBF7;color:var(--ink);transition:.2s}
.search-form input::placeholder{color:#9BA6A2}
.search-form input:focus{outline:none;border-color:var(--brand-l);box-shadow:0 0 0 3px rgba(23,160,143,.18);background:#fff}
.search-hint{margin-top:12px;font-size:13px;color:var(--muted)}

/* ============ 分栏布局 ============ */
.layout-4-8{display:grid;grid-template-columns:300px 1fr;gap:48px;align-items:start}

/* ============ 粘性目录 ============ */
.toc{position:sticky;top:96px;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px;box-shadow:var(--sd1)}
.toc-title{font-size:13px;font-weight:700;color:var(--muted);letter-spacing:.08em;margin-bottom:12px}
.toc-list li+li{margin-top:4px}
.toc-list a{display:flex;gap:10px;align-items:flex-start;padding:9px 12px;border-radius:12px;font-size:14.5px;color:var(--text);border-left:3px solid transparent;transition:.2s}
.toc-list a:hover{background:var(--sub);color:var(--brand-d)}
.toc-list a.active{background:rgba(23,160,143,.1);border-left-color:var(--brand);color:var(--brand-d);font-weight:600}
.toc-list .num{font-variant-numeric:tabular-nums;color:var(--brand-l);font-weight:700;font-size:13px;line-height:1.9}
.toc-foot{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
.toc-foot a{display:block;margin-top:8px;font-size:14px;font-weight:600}

/* ============ 板块标题 ============ */
.sec-head{max-width:760px;margin-bottom:40px}
.sec-head h2{font-size:clamp(1.6rem,3vw,2.25rem);font-weight:750;margin-bottom:14px}
.sec-head p{color:var(--muted);font-size:16px}

/* ============ 步骤条 ============ */
.steps{display:grid;gap:0}
.step{position:relative;padding:0 0 32px 76px}
.step:last-child{padding-bottom:0}
.step::before{content:"";position:absolute;left:21px;top:52px;bottom:0;width:2px;background:linear-gradient(180deg,rgba(23,160,143,.55),rgba(23,160,143,.06))}
.step:last-child::before{display:none}
.step-num{position:absolute;left:0;top:0;width:44px;height:44px;border-radius:14px;background:var(--grad);color:#fff;display:grid;place-items:center;font-weight:800;font-size:16px;font-variant-numeric:tabular-nums;box-shadow:var(--sd2)}
.step-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px 26px;box-shadow:var(--sd1);transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease-out}
.step-card:hover{border-color:var(--brand-l);box-shadow:var(--sd2);transform:translateY(-2px)}
.step-card h3{font-size:1.25rem;font-weight:700;margin-bottom:10px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.step-card p{color:var(--text)}
.point-list{margin-top:14px;display:grid;gap:8px}
.point-list li{position:relative;padding-left:24px;font-size:15px;color:var(--muted)}
.point-list li::before{content:"";position:absolute;left:6px;top:11px;width:6px;height:6px;border-radius:50%;background:var(--brand-l)}
.step-figure{margin:18px 0 0;border-radius:20px;overflow:hidden;border:1px solid var(--line);background:var(--sub)}
.step-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease-out}
.step-card:hover .step-figure img{transform:scale(1.03)}
.step-figure figcaption{font-size:13px;color:var(--muted);padding:10px 14px;background:#fff;border-top:1px solid var(--line)}

/* ============ 准备区（7/5） ============ */
.prep{background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.prep-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:48px;align-items:center}
.prep-figure{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sd2);border:1px solid var(--line)}
.prep-figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.check-list{display:grid;gap:14px;margin-top:26px}
.check-list li{display:flex;gap:14px;align-items:flex-start;background:#FCFBF7;border:1px solid var(--line);border-radius:16px;padding:16px 18px}
.check-icon{width:34px;height:34px;border-radius:11px;background:rgba(23,160,143,.12);color:var(--brand-d);display:grid;place-items:center;flex:none}
.check-list strong{display:block;color:var(--ink);font-size:15.5px;margin-bottom:2px}
.check-list span{font-size:14px;color:var(--muted);line-height:1.7}

/* ============ 速查区 ============ */
.tips-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:40px;align-items:start}
.tip-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.tip-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px;box-shadow:var(--sd1);transition:.2s ease-out}
.tip-card:hover{border-color:var(--brand-l);box-shadow:var(--sd2);transform:translateY(-2px)}
.tip-card .ico{width:44px;height:44px;border-radius:14px;background:rgba(240,169,59,.16);color:#8A5A00;display:grid;place-items:center;margin-bottom:14px}
.tip-card h3{font-size:16px;margin-bottom:8px}
.tip-card p{font-size:14.5px;color:var(--muted)}
.order-card{background:var(--dark);color:#C9D6D2;border-radius:var(--r-lg);padding:28px;box-shadow:var(--sd2);position:relative;overflow:hidden}
.order-card::after{content:"";position:absolute;right:-60px;top:-60px;width:200px;height:200px;border-radius:50%;background:radial-gradient(circle,rgba(63,198,165,.35),transparent 70%)}
.order-card h3{color:#fff;font-size:17px;margin-bottom:8px;position:relative}
.order-card p{font-size:14px;color:#A8BAB5;position:relative}
.order-list{margin-top:20px;display:grid;gap:12px;position:relative;counter-reset:o}
.order-list li{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:#D9E4E1}
.order-list li .on{width:24px;height:24px;border-radius:50%;background:rgba(63,198,165,.18);color:#3FC6A5;display:grid;place-items:center;font-size:12.5px;font-weight:700;flex:none;font-variant-numeric:tabular-nums}

/* ============ FAQ ============ */
.faq{background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.faq-grid{display:grid;grid-template-columns:0.85fr 1.4fr;gap:48px;align-items:start}
.faq-side h2{font-size:clamp(1.6rem,3vw,2.25rem);margin-bottom:14px}
.faq-side p{color:var(--muted);font-size:15.5px}
.faq-side .badge{margin-top:20px}
.acc{display:grid;gap:12px}
.acc-item{background:#FCFBF7;border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.acc-item.open{border-color:var(--brand-l);box-shadow:var(--sd1);background:#fff}
.acc-q{width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;padding:16px 20px;background:transparent;border:0;color:var(--ink);font-size:16px;font-weight:600}
.acc-q .chev{width:26px;height:26px;border-radius:50%;background:rgba(23,160,143,.12);color:var(--brand-d);display:grid;place-items:center;flex:none;transition:transform .25s ease}
.acc-item.open .chev{transform:rotate(180deg)}
.acc-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.acc-a-inner{padding:0 20px 18px 36px;border-top:1px solid var(--line);margin-top:0;padding-top:14px;font-size:15px;color:var(--muted)}

/* ============ CTA ============ */
.cta-card{background:var(--dark);border-radius:var(--r-lg);padding:48px;color:#C9D6D2;position:relative;overflow:hidden;display:grid;grid-template-columns:1.15fr 1fr;gap:40px;align-items:center;box-shadow:var(--sd2)}
.cta-card::before{content:"";position:absolute;left:-80px;bottom:-120px;width:340px;height:340px;border-radius:50%;background:radial-gradient(circle,rgba(23,160,143,.45),transparent 70%)}
.cta-card h2{color:#fff;font-size:clamp(1.5rem,2.6vw,2rem);margin-bottom:12px;position:relative}
.cta-card p{position:relative;font-size:15.5px;max-width:520px}
.cta-form{position:relative;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);border-radius:var(--r);padding:24px}
.cta-form input{width:100%;height:48px;padding:0 16px;border-radius:14px;border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.06);color:#fff;transition:.2s}
.cta-form input::placeholder{color:#8FA5A0}
.cta-form input:focus{outline:none;border-color:var(--brand-l);box-shadow:0 0 0 3px rgba(23,160,143,.3);background:rgba(255,255,255,.1)}
.cta-form .field{margin-bottom:14px}
.agree{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:#A8BAB5;margin:14px 0 18px}
.agree input{width:20px;height:20px;flex:none;accent-color:var(--brand-l);margin-top:2px}
.cta-note{margin-top:14px;font-size:13px;color:#8FA5A0}
.err-msg{display:none;color:#FF9A8D;font-size:13px;margin-top:8px}
.err-msg.show{display:block}

/* ============ 移动端抽屉 ============ */
.drawer-mask{position:fixed;inset:0;background:rgba(7,32,28,.45);z-index:90;opacity:0;pointer-events:none;transition:opacity .3s ease}
.drawer-mask.open{opacity:1;pointer-events:auto}
.drawer{position:fixed;top:0;right:0;bottom:0;width:86%;max-width:380px;background:#fff;z-index:100;transform:translateX(102%);transition:transform .3s ease;border-radius:24px 0 0 24px;padding:22px;overflow-y:auto;box-shadow:var(--sd3)}
.drawer.open{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;display:grid;place-items:center}
.drawer-nav a{display:block;padding:14px 16px;border-radius:14px;color:var(--ink);font-size:16px;font-weight:600}
.drawer-nav a.active{background:rgba(23,160,143,.1);color:var(--brand-d)}
.drawer-badges{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0}
.drawer-actions{display:grid;gap:10px;margin-top:8px}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:#C9D6D2;padding:64px 0 0;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.25fr;gap:32px;padding-bottom:48px}
.foot-col h3{color:#fff;font-size:15px;margin-bottom:16px;font-weight:700}
.foot-col a{display:block;color:#A8BAB5;font-size:14.5px;padding:5px 0;transition:color .2s ease,transform .2s ease}
.foot-col a:hover{color:#3FC6A5}
.foot-brand .logo{color:var(--inv);margin-bottom:14px}
.foot-brand .logo:hover{color:var(--inv)}
.foot-brand p{font-size:14.5px;color:#A8BAB5;max-width:330px;margin:0;line-height:1.8}
.contact-item{display:block;color:#A8BAB5;font-size:14.5px;padding:4px 0}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;justify-content:space-between;gap:16px;font-size:13px;color:#8C9E99;flex-wrap:wrap;align-items:center}
.foot-bottom a{color:#8C9E99}
.foot-bottom a:hover{color:#3FC6A5}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .layout-4-8{grid-template-columns:260px 1fr;gap:36px}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .nav-links{display:none}
  .hamburger{display:flex}
  .nav-actions .btn-outline{display:none}
  .head-grid{grid-template-columns:1fr;gap:32px;align-items:start}
  .layout-4-8{grid-template-columns:1fr;gap:32px}
  .toc{position:static;top:auto}
  .toc-list{display:grid;grid-template-columns:1fr 1fr;gap:4px}
  .prep-grid{grid-template-columns:1fr;gap:32px}
  .tips-grid{grid-template-columns:1fr;gap:28px}
  .tip-cards{grid-template-columns:1fr 1fr}
  .faq-grid{grid-template-columns:1fr;gap:28px}
  .cta-card{grid-template-columns:1fr;gap:28px;padding:36px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 18px}
  .section{padding:56px 0}
  .topbar{height:auto;min-height:40px}
  .topbar .container{height:auto;padding-top:8px;padding-bottom:8px;flex-wrap:wrap}
  .topbar-left{font-size:12.5px;gap:8px}
  .topbar-left .status-label{display:none}
  .nav .container{height:64px}
  .logo{font-size:15.5px}
  .logo-mark{width:28px;height:28px;border-radius:9px}
  .nav-actions .btn-primary{display:none}
  .page-head{padding:32px 0 40px}
  .page-head h1{margin:14px 0 12px}
  .search-form{flex-direction:column}
  .search-form .btn{width:100%}
  .toc-list{grid-template-columns:1fr}
  .step{padding-left:60px;padding-bottom:26px}
  .step::before{left:19px}
  .step-num{width:40px;height:40px;border-radius:12px;font-size:15px}
  .step-card{padding:20px}
  .tip-cards{grid-template-columns:1fr}
  .cta-card{padding:28px 22px;border-radius:24px}
  .cta-form{padding:20px}
  .acc-a-inner{padding-left:20px}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .foot-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:479px){
  body{font-size:15.2px}
  .page-head h1{font-size:1.85rem}
  .btn{padding:11px 18px;font-size:14.5px}
  .cta-card h2{font-size:1.35rem}
  .step{padding-left:54px}
  .step::before{left:16px}
  .step-num{width:36px;height:36px;font-size:14px}
}

/* roulang page: category2 */
:root{
  --brand:#0B6B5E;
  --brand-d:#08423A;
  --brand-l:#17A08F;
  --brand-x:#3FC6A5;
  --grad:linear-gradient(128deg,#0B6B5E 0%,#17A08F 52%,#3FC6A5 100%);
  --amber:#F0A93B;
  --amber-l:#FFD79A;
  --coral:#FF6B5A;
  --ok:#128A6B;
  --warn:#C8871B;
  --bg:#F7F5EF;
  --bg2:#EFEDE4;
  --paper:#FFFFFF;
  --dark:#07201C;
  --ink:#0F1A18;
  --text:#33403D;
  --muted:#6B7A76;
  --inv:#F3F7F5;
  --line:#E3E1D8;
  --r-s:14px;
  --r-m:20px;
  --r-l:28px;
  --r-xl:32px;
  --sd1:0 1px 2px rgba(8,66,58,.06),0 8px 24px -12px rgba(8,66,58,.18);
  --sd2:0 18px 44px -18px rgba(8,66,58,.28);
  --sd3:0 30px 70px -28px rgba(8,66,58,.35);
  --sp:24px;
  --num:"Manrope",Inter,system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16.5px;
  line-height:1.85;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .2s ease-out,opacity .2s ease-out}
a:hover{color:var(--brand-l)}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input{font:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.01em}
h1{font-size:clamp(2.1rem,4.8vw,3.35rem);line-height:1.15;font-weight:800;letter-spacing:-.02em}
h2{font-size:clamp(1.6rem,3vw,2.25rem);line-height:1.25;font-weight:750}
h3{font-size:1.25rem;line-height:1.4;font-weight:700}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
:focus-visible{outline:3px solid rgba(23,160,143,.55);outline-offset:2px;border-radius:6px}

.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
.section{padding:96px 0}
.section-alt{background:var(--bg2)}
.section-head{max-width:760px;margin-bottom:48px}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--brand);letter-spacing:.02em;margin-bottom:14px}
.section-head .eyebrow::before{content:"";width:22px;height:2px;background:var(--grad);border-radius:2px}
.section-head p{margin-top:14px;color:var(--muted)}
.num{font-family:var(--num);font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

/* ---------- topbar ---------- */
.topbar{background:var(--dark);color:var(--inv);font-size:13px;min-height:40px}
.topbar.is-hidden{display:none}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:40px;padding-top:4px;padding-bottom:4px}
.topbar-left,.topbar-right{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.topbar-left{color:rgba(243,247,245,.82)}
.topbar-right a{color:var(--inv);opacity:.9}
.topbar-right a:hover{color:var(--brand-x);opacity:1}
.status-dot{width:8px;height:8px;border-radius:50%;background:var(--brand-x);box-shadow:0 0 0 4px rgba(63,198,165,.18);flex:none}
.status-label{color:var(--brand-x);font-weight:700}
.countdown{font-family:var(--num);font-variant-numeric:tabular-nums;color:var(--amber-l);font-weight:700}
.topbar-close{width:28px;height:28px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;color:rgba(243,247,245,.7);transition:background .2s ease-out,color .2s ease-out}
.topbar-close:hover{background:rgba(243,247,245,.12);color:#fff}

/* ---------- nav ---------- */
.site-header{position:sticky;top:0;z-index:60}
.nav{background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid transparent;transition:box-shadow .25s ease-out,border-color .25s ease-out}
.nav.is-stuck{box-shadow:var(--sd1);border-bottom-color:var(--line)}
.nav .container{display:flex;align-items:center;gap:24px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:var(--ink);letter-spacing:-.01em}
.logo:hover{color:var(--ink)}
.logo-mark{width:32px;height:32px;border-radius:10px;background:var(--grad);display:inline-flex;align-items:center;justify-content:center;box-shadow:var(--sd1);flex:none}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-links a{display:inline-flex;align-items:center;height:44px;padding:0 14px;color:var(--text);font-size:15px;font-weight:500;border-radius:12px;position:relative}
.nav-links a:hover{color:var(--brand);background:rgba(23,160,143,.07)}
.nav-links a.active{color:var(--brand-d);font-weight:700}
.nav-links a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:6px;height:3px;border-radius:3px;background:var(--grad)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.hamburger{display:none;width:44px;height:44px;align-items:center;justify-content:center;border-radius:12px;border:1px solid var(--line);background:#fff}
.hamburger:hover{border-color:var(--brand-l)}

/* ---------- buttons / badges ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;font-weight:700;font-size:15px;padding:0 24px;height:48px;transition:transform .2s ease-out,box-shadow .2s ease-out,background-color .2s ease-out,border-color .2s ease-out,color .2s ease-out;white-space:nowrap}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-primary{background-image:var(--grad);background-size:130% 100%;background-position:0 0;color:#fff;box-shadow:var(--sd2)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);background-position:12% 0;box-shadow:var(--sd3)}
.btn-outline{background:#fff;color:var(--brand-d);border:1.5px solid rgba(11,107,94,.35)}
.btn-outline:hover{background:var(--bg2);color:var(--brand-d);transform:translateY(-2px)}
.btn-ghost{background:#fff;border:1.5px solid var(--line);color:var(--text);border-radius:14px}
.btn-ghost:hover{border-color:var(--brand-l);color:var(--brand-d)}
.btn-light{background:#fff;color:var(--brand-d)}
.btn-light:hover{color:var(--brand-d);transform:translateY(-2px);box-shadow:var(--sd2)}
.btn-line{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.45)}
.btn-line:hover{color:#fff;background:rgba(255,255,255,.1)}
.btn[disabled],.btn.is-disabled{filter:saturate(.4);opacity:.75;pointer-events:none}
.btn-block{width:100%}
.badge{display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:999px;font-size:13px;font-weight:700;line-height:1}
.badge-amber{background:var(--amber-l);color:#5C3A08}
.badge-outline{background:#fff;border:1px solid rgba(11,107,94,.3);color:var(--brand-d)}
.badge-dark{background:rgba(7,32,28,.72);color:var(--amber-l);border:1px solid rgba(255,215,154,.3)}
.tag{display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:999px;background:rgba(11,107,94,.09);color:var(--brand-d);font-size:12.5px;font-weight:700}

/* ---------- breadcrumb ---------- */
.crumb{display:flex;align-items:center;gap:8px;height:32px;font-size:13px;color:var(--muted);flex-wrap:wrap}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:#BCC5C2}
.crumb .cur{color:var(--muted)}

/* ---------- hero ---------- */
.cat-hero{position:relative;overflow:hidden;background-color:var(--dark);background-image:linear-gradient(100deg,rgba(7,32,28,.94) 0%,rgba(8,66,58,.86) 48%,rgba(11,107,94,.62) 100%),url(/assets/images/backpic/back-2.webp);background-size:cover;background-position:center;color:var(--inv);border-radius:0 0 var(--r-xl) var(--r-xl)}
.cat-hero::after{content:"";position:absolute;width:520px;height:520px;right:-160px;top:-200px;border-radius:50%;background:radial-gradient(circle,rgba(63,198,165,.42),rgba(63,198,165,0) 70%)}
.cat-hero .container{position:relative;z-index:2;padding-top:36px;padding-bottom:72px}
.cat-hero .crumb,.cat-hero .crumb a{color:rgba(243,247,245,.78)}
.cat-hero .crumb a:hover{color:var(--brand-x)}
.cat-hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:center;margin-top:28px}
.cat-hero h1{color:#fff;max-width:15em}
.cat-hero .lead{color:rgba(243,247,245,.88);font-size:17px;max-width:36em;margin-top:18px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.hero-badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}
.hero-stats{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}
.hero-stat{background:rgba(243,247,245,.1);border:1px solid rgba(243,247,245,.22);border-radius:var(--r-m);padding:14px 18px;min-width:120px}
.hero-stat b{display:block;font-family:var(--num);font-size:26px;font-weight:800;color:#fff;line-height:1.2}
.hero-stat b span{font-size:14px;font-weight:700;margin-left:2px}
.hero-stat i{font-style:normal;font-size:13px;color:rgba(243,247,245,.72)}
.hero-search{background:rgba(255,255,255,.96);border-radius:var(--r-l);padding:22px;box-shadow:var(--sd3);color:var(--text)}
.hero-search h2{font-size:1.05rem;margin-bottom:6px}
.hero-search p{font-size:13.5px;color:var(--muted);margin-bottom:14px}
.search-row{display:flex;gap:10px}
.search-row input{flex:1;height:48px;border:1.5px solid var(--line);border-radius:var(--r-s);padding:0 14px;background:#fff;color:var(--ink);min-width:0}
.search-row input::placeholder{color:#9AA5A2}
.search-row input:focus{outline:none;border-color:var(--brand-l);box-shadow:0 0 0 3px rgba(23,160,143,.18)}
.search-row .btn{height:48px}
.hero-side-list{margin-top:16px;display:grid;gap:10px}
.hero-side-list li{display:flex;gap:10px;font-size:13.5px;color:var(--text);align-items:flex-start}
.hero-side-list svg{flex:none;margin-top:4px}

/* ---------- metrics ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.metric{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-m);padding:26px;box-shadow:var(--sd1);transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out}
.metric:hover{transform:translateY(-2px);box-shadow:var(--sd2);border-color:var(--brand-l)}
.metric b{display:block;font-family:var(--num);font-size:34px;font-weight:800;color:var(--brand-d);line-height:1.2;font-variant-numeric:tabular-nums}
.metric b span{font-size:15px;font-weight:700;margin-left:2px;color:var(--brand-l)}
.metric i{font-style:normal;display:block;font-size:13px;color:var(--muted);margin-top:4px}
.metric p{font-size:14px;color:var(--text);margin-top:12px}

/* ---------- timeline ---------- */
.tl{position:relative;display:grid;gap:32px}
.tl-item{display:grid;grid-template-columns:64px 1fr;gap:24px;position:relative}
.tl-item::before{content:"";position:absolute;left:31px;top:68px;bottom:-32px;width:2px;background:linear-gradient(180deg,rgba(23,160,143,.5),rgba(23,160,143,.12))}
.tl-item:last-child::before{display:none}
.tl-dot{width:64px;height:64px;border-radius:50%;background:#fff;border:2px solid rgba(23,160,143,.45);display:flex;align-items:center;justify-content:center;font-family:var(--num);font-weight:800;font-size:19px;color:var(--brand-d);box-shadow:var(--sd1);position:relative;z-index:2}
.tl-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-m);padding:28px;box-shadow:var(--sd1);transition:border-color .2s ease-out,box-shadow .2s ease-out,transform .2s ease-out}
.tl-card:hover{border-color:var(--brand-l);box-shadow:var(--sd2);transform:translateY(-2px)}
.tl-card h3{margin-bottom:10px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.tl-card p{font-size:15.5px}
.tl-card ul{margin-top:16px;display:grid;gap:10px}
.tl-card li{display:flex;gap:10px;font-size:14.5px;color:var(--text);align-items:flex-start}
.tl-card li svg{flex:none;margin-top:5px}
.tl-media{margin-top:20px;border-radius:var(--r-m);overflow:hidden;border:1px solid var(--line);aspect-ratio:16/9;background:var(--bg2)}
.tl-media img{width:100%;height:100%;object-fit:cover}

/* ---------- device panel ---------- */
.split{display:grid;grid-template-columns:7fr 5fr;gap:32px;align-items:start}
.panel{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-l);padding:32px;box-shadow:var(--sd1)}
.row-list{display:grid;gap:14px;margin-top:8px}
.row-item{display:flex;align-items:center;gap:14px;padding:16px;border:1px solid var(--line);border-radius:var(--r-m);background:#fff;transition:border-color .2s ease-out,background .2s ease-out}
.row-item:hover{border-color:var(--brand-l);background:rgba(23,160,143,.04)}
.row-icon{width:44px;height:44px;border-radius:14px;background:rgba(11,107,94,.1);display:flex;align-items:center;justify-content:center;flex:none}
.row-main{flex:1;min-width:0}
.row-main strong{display:block;color:var(--ink);font-size:15.5px}
.row-main span{font-size:13px;color:var(--muted)}
.row-state{font-size:12.5px;font-weight:700;padding:4px 10px;border-radius:999px;background:rgba(18,138,107,.12);color:var(--ok);flex:none}
.row-state.warn{background:rgba(200,135,27,.14);color:var(--warn)}
.row-state.off{background:var(--bg2);color:var(--muted)}
.aside-card{background:var(--dark);color:var(--inv);border-radius:var(--r-l);padding:30px;box-shadow:var(--sd3);position:relative;overflow:hidden}
.aside-card::after{content:"";position:absolute;width:300px;height:300px;right:-120px;bottom:-140px;border-radius:50%;background:radial-gradient(circle,rgba(63,198,165,.35),rgba(63,198,165,0) 70%)}
.aside-card h3{color:#fff;position:relative;z-index:2}
.aside-card p{color:rgba(243,247,245,.82);font-size:14.5px;position:relative;z-index:2;margin-top:10px}
.aside-card ul{position:relative;z-index:2;margin-top:18px;display:grid;gap:12px}
.aside-card li{display:flex;gap:10px;font-size:14px;color:rgba(243,247,245,.9);align-items:flex-start}
.aside-card li svg{flex:none;margin-top:5px}
.aside-cover{margin-top:22px;border-radius:var(--r-m);overflow:hidden;aspect-ratio:16/10;position:relative;z-index:2;border:1px solid rgba(243,247,245,.2)}
.aside-cover img{width:100%;height:100%;object-fit:cover}

/* ---------- warning cards ---------- */
.warn-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.warn-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-m);padding:26px;box-shadow:var(--sd1);display:flex;gap:18px;transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out}
.warn-card:hover{transform:translateY(-2px);box-shadow:var(--sd2);border-color:var(--brand-l)}
.warn-ico{width:48px;height:48px;border-radius:16px;background:rgba(255,107,90,.12);display:flex;align-items:center;justify-content:center;flex:none}
.warn-card h3{font-size:1.1rem;margin-bottom:8px}
.warn-card p{font-size:14.5px;color:var(--text)}
.warn-card .tag{margin-top:12px}

/* ---------- faq ---------- */
.faq-wrap{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start}
.faq-list{display:grid;gap:12px}
.faq-item{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-m);box-shadow:var(--sd1);overflow:hidden;transition:border-color .2s ease-out,box-shadow .2s ease-out}
.faq-item:hover{border-color:var(--brand-l)}
.faq-item.open{border-color:var(--brand-l);box-shadow:var(--sd2)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;padding:18px 22px;min-height:56px;font-size:16px;font-weight:700;color:var(--ink)}
.faq-q svg{flex:none;transition:transform .25s ease-out;color:var(--brand)}
.faq-item.open .faq-q svg{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease-out}
.faq-a-inner{padding:16px 22px 22px 38px;border-top:1px solid var(--line);font-size:15px;color:var(--text)}
.faq-aside{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-l);padding:30px;box-shadow:var(--sd1)}
.faq-aside h2{font-size:1.35rem;margin-bottom:12px}
.faq-aside p{font-size:14.5px;color:var(--muted)}
.faq-aside .btn{margin-top:22px}
.faq-points{margin-top:22px;display:grid;gap:12px}
.faq-points li{display:flex;gap:10px;font-size:14px;color:var(--text);align-items:flex-start}
.faq-points svg{flex:none;margin-top:5px}

/* ---------- cta ---------- */
.cta-card{position:relative;overflow:hidden;background:var(--dark);border-radius:var(--r-l);padding:48px;display:grid;grid-template-columns:6fr 5fr;gap:40px;align-items:center;box-shadow:var(--sd3)}
.cta-card::after{content:"";position:absolute;width:460px;height:460px;left:-160px;bottom:-240px;border-radius:50%;background:radial-gradient(circle,rgba(63,198,165,.38),rgba(63,198,165,0) 70%)}
.cta-card h2{color:#fff;position:relative;z-index:2}
.cta-card p{color:rgba(243,247,245,.84);position:relative;z-index:2;margin-top:14px}
.cta-badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px;position:relative;z-index:2}
.cta-form{background:rgba(255,255,255,.97);border-radius:var(--r-m);padding:26px;position:relative;z-index:2}
.cta-form label{display:block;font-size:13.5px;font-weight:700;color:var(--ink);margin-bottom:8px}
.cta-form input[type="text"]{width:100%;height:48px;border:1.5px solid var(--line);border-radius:var(--r-s);padding:0 14px;background:#fff;color:var(--ink)}
.cta-form input[type="text"]:focus{outline:none;border-color:var(--brand-l);box-shadow:0 0 0 3px rgba(23,160,143,.18)}
.cta-form input.is-error{border-color:var(--coral);box-shadow:0 0 0 3px rgba(255,107,90,.16)}
.field-err{display:none;font-size:13px;color:var(--coral);margin-top:8px}
.field-err.show{display:block}
.check-row{display:flex;gap:10px;align-items:flex-start;margin:16px 0 18px;font-size:13px;color:var(--muted)}
.check-row input{width:20px;height:20px;accent-color:var(--brand);margin-top:3px;flex:none}
.cta-note{font-size:13px;color:var(--muted);margin-top:14px;text-align:center}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:rgba(243,247,245,.78);margin-top:96px;padding:64px 0 0;font-size:14.5px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:32px;padding-bottom:40px}
.foot-col h3{color:#fff;font-size:15px;margin-bottom:16px;font-weight:700}
.foot-col a{display:block;color:rgba(243,247,245,.78);padding:6px 0}
.foot-col a:hover{color:var(--brand-x)}
.foot-brand .logo{color:#fff;margin-bottom:16px}
.foot-brand p{font-size:14px;color:rgba(243,247,245,.7);max-width:34em}
.contact-item{display:block;padding:6px 0;color:rgba(243,247,245,.78)}
.foot-bottom{border-top:1px solid rgba(243,247,245,.14);padding:20px 0 28px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:rgba(243,247,245,.62)}
.foot-bottom a{color:rgba(243,247,245,.78)}
.foot-bottom a:hover{color:var(--brand-x)}

/* ---------- drawer ---------- */
.drawer{position:fixed;inset:0;z-index:120;display:none}
.drawer.open{display:block}
.drawer-mask{position:absolute;inset:0;background:rgba(7,32,28,.45)}
.drawer-panel{position:absolute;top:0;right:0;height:100%;width:86%;max-width:360px;background:#fff;border-radius:24px 0 0 24px;padding:22px;box-shadow:var(--sd3);overflow-y:auto;display:flex;flex-direction:column;gap:6px}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.drawer-head .logo{font-size:16px}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center}
.drawer-panel a.drawer-link{display:flex;align-items:center;height:48px;padding:0 12px;border-radius:12px;color:var(--text);font-weight:600}
.drawer-panel a.drawer-link:hover{background:var(--bg2);color:var(--brand-d)}
.drawer-panel a.drawer-link.active{background:rgba(23,160,143,.1);color:var(--brand-d)}
.drawer-cta{margin-top:18px;display:grid;gap:10px}
.drawer-badge{margin-top:16px}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .cat-hero-grid{grid-template-columns:1fr;}
  .hero-search{max-width:620px}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .nav-links{display:none}
  .hamburger{display:inline-flex}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr}
  .faq-wrap{grid-template-columns:1fr;gap:32px}
  .cta-card{grid-template-columns:1fr;padding:36px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 18px}
  .section{padding:56px 0}
  .topbar .container{flex-direction:column;align-items:flex-start;gap:6px;padding-top:8px;padding-bottom:8px}
  .topbar-right{align-self:flex-end;margin-top:-32px}
  .cat-hero .container{padding-bottom:52px}
  .cat-hero-grid{margin-top:20px}
  .hero-actions .btn{width:100%}
  .metrics{grid-template-columns:1fr}
  .warn-grid{grid-template-columns:1fr}
  .tl-item{grid-template-columns:48px 1fr;gap:16px}
  .tl-item::before{left:23px;top:56px}
  .tl-dot{width:48px;height:48px;font-size:16px}
  .tl-card{padding:22px}
  .panel{padding:24px}
  .cta-card{padding:26px;border-radius:var(--r-m)}
  .foot-grid{grid-template-columns:1fr}
  .site-footer{margin-top:64px}
  .foot-bottom{flex-direction:column;gap:8px}
  .search-row{flex-direction:column}
  .search-row .btn{width:100%}
}
@media (max-width:479px){
  h1{font-size:clamp(1.9rem,7.4vw,2.3rem)}
  .btn{height:46px;padding:0 20px;font-size:14.5px}
  .metric b{font-size:30px}
  .faq-q{font-size:15px;padding:16px 18px}
  .faq-a-inner{padding-left:28px}
}

/* roulang page: category3 */
/* ============================================================
   设计变量
   ============================================================ */
:root{
  --brand:#0B6B5E;
  --brand-dark:#08423A;
  --brand-light:#17A08F;
  --brand-grad:linear-gradient(128deg,#0B6B5E 0%,#17A08F 52%,#3FC6A5 100%);
  --amber:#F0A93B;
  --amber-soft:#FFD79A;
  --coral:#FF6B5A;
  --success:#128A6B;
  --warn:#C8871B;

  --bg:#F7F5EF;
  --paper:#FFFFFF;
  --sub:#EFEDE4;
  --dark:#07201C;

  --ink:#0F1A18;
  --text:#33403D;
  --muted:#6B7A76;
  --inverse:#F3F7F5;
  --line:#E3E1D8;

  --sd1:0 1px 2px rgba(8,66,58,.06),0 8px 24px -12px rgba(8,66,58,.18);
  --sd2:0 18px 44px -18px rgba(8,66,58,.28);
  --sd3:0 30px 70px -28px rgba(8,66,58,.35);

  --r-card:20px;
  --r-lg:28px;
  --r-hero:32px;

  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px;
  --sp-5:24px; --sp-6:32px; --sp-7:48px; --sp-8:64px; --sp-9:96px;

  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Manrope",Inter,"SF Pro Display",system-ui,sans-serif;
}

/* ============================================================
   Reset / Base
   ============================================================ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:750;line-height:1.25}
p{margin:0}
a{color:inherit;text-decoration:none;transition:color .2s ease-out}
img{max-width:100%;display:block;height:auto}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
svg{display:block}
::selection{background:rgba(23,160,143,.22)}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(23,160,143,.42);border-radius:10px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.tabular{font-variant-numeric:tabular-nums;font-family:var(--font-num)}

/* ============================================================
   顶部状态条
   ============================================================ */
.topbar{
  background:var(--dark);
  color:rgba(243,247,245,.85);
  font-size:13px;
  height:40px;
  display:flex;
  align-items:center;
}
.topbar.is-hidden{display:none}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-left{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.status-dot{
  width:8px;height:8px;border-radius:50%;background:#3FC6A5;
  box-shadow:0 0 0 3px rgba(63,198,165,.22);flex:0 0 auto;
}
.status-label{font-weight:600;color:#fff}
.countdown{font-variant-numeric:tabular-nums;font-weight:700;color:var(--amber-soft);font-family:var(--font-num)}
.topbar-right{display:flex;align-items:center;gap:10px}
.topbar-right a{color:var(--amber-soft);font-weight:600}
.topbar-right a:hover{color:#fff;text-decoration:underline}
.topbar-close{
  width:28px;height:28px;border-radius:50%;display:grid;place-items:center;
  color:rgba(243,247,245,.7);transition:background .2s,color .2s;
}
.topbar-close:hover{background:rgba(255,255,255,.12);color:#fff}

/* ============================================================
   Header / Nav
   ============================================================ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,245,239,.88);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s ease-out,background .25s ease-out,border-color .25s ease-out;
}
.site-header.scrolled{
  background:rgba(255,255,255,.94);
  box-shadow:var(--sd1);
  border-bottom-color:var(--line);
}
.nav .container{display:flex;align-items:center;gap:24px;min-height:72px}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-weight:800;font-size:18px;color:var(--ink);
  letter-spacing:-.01em;white-space:nowrap;
}
.logo-mark{
  width:34px;height:34px;border-radius:11px;
  background:var(--brand-grad);
  display:grid;place-items:center;flex:0 0 auto;
  box-shadow:0 6px 16px -8px rgba(11,107,94,.85);
}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;height:44px;
  padding:0 14px;font-size:15px;font-weight:600;color:var(--text);
  border-radius:12px;transition:color .2s,background .2s;white-space:nowrap;
}
.nav-links a:hover{color:var(--brand);background:var(--sub)}
.nav-links a.active{color:var(--brand)}
.nav-links a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:5px;height:3px;
  border-radius:3px;background:var(--brand-grad);
}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.hamburger{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;place-items:center;
  transition:background .2s,border-color .2s;
}
.hamburger:hover{background:var(--sub);border-color:var(--brand-light)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:700;border:1px solid transparent;
  text-align:center;white-space:nowrap;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out,color .2s ease-out;
}
.btn-primary{
  background-image:var(--brand-grad);
  background-size:180% 100%;background-position:0 0;
  color:#fff;box-shadow:var(--sd2);
}
.btn-primary:hover{transform:translateY(-2px);background-position:62% 0;box-shadow:var(--sd3)}
.btn-outline{background:#fff;border-color:var(--brand);color:var(--brand)}
.btn-outline:hover{background:var(--sub);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:700;color:var(--brand);
  padding:4px 0;transition:gap .2s ease-out,color .2s;
}
.btn-text:hover{gap:10px;color:var(--brand-dark)}
.btn-text svg{transition:transform .2s}
.btn-text:hover svg{transform:translateX(2px)}

/* ============================================================
   移动端抽屉
   ============================================================ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(7,32,28,.45);
  opacity:0;pointer-events:none;transition:opacity .25s ease-out;z-index:90;
}
.drawer-mask.open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:86%;max-width:360px;
  background:var(--paper);z-index:100;
  border-radius:24px 0 0 24px;
  padding:24px 22px 32px;
  transform:translateX(101%);
  transition:transform .3s cubic-bezier(.22,.61,.36,1);
  overflow-y:auto;box-shadow:var(--sd3);
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  display:grid;place-items:center;background:#fff;transition:background .2s;
}
.drawer-close:hover{background:var(--sub)}
.drawer-links li + li{margin-top:4px}
.drawer-links a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 14px;border-radius:14px;font-weight:600;font-size:16px;
  color:var(--text);transition:background .2s,color .2s;
}
.drawer-links a:hover{background:var(--sub);color:var(--brand)}
.drawer-links a.active{background:rgba(23,160,143,.1);color:var(--brand)}
.drawer-badge{
  display:inline-flex;align-items:center;gap:6px;margin:20px 0 16px;
  padding:6px 12px;border-radius:999px;background:var(--amber-soft);
  color:#5A3A05;font-size:13px;font-weight:700;
}
.drawer-cta{display:flex;flex-direction:column;gap:12px}

/* ============================================================
   面包屑
   ============================================================ */
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13.5px;color:var(--muted);padding:20px 0 0;line-height:32px;min-height:32px;
}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#B9C2BE}
.breadcrumb .current{color:var(--muted)}

/* ============================================================
   Hero 分类头
   ============================================================ */
.hero-cat{
  position:relative;overflow:hidden;padding:32px 0 72px;
}
.hero-cat::before{
  content:"";position:absolute;inset:0;z-index:0;
  background:linear-gradient(128deg,rgba(11,107,94,.11) 0%,rgba(23,160,143,.07) 52%,rgba(63,198,165,.13) 100%);
}
.hero-cat::after{
  content:"";position:absolute;top:-180px;right:-140px;width:560px;height:560px;
  border-radius:50%;z-index:0;pointer-events:none;
  background:radial-gradient(circle,rgba(63,198,165,.30),rgba(63,198,165,0) 70%);
}
.hero-cat .container{position:relative;z-index:1}
.hero-cat-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;color:var(--brand);
  padding:5px 14px;border-radius:999px;
  background:rgba(23,160,143,.12);margin-bottom:18px;
}
.hero-cat h1{
  font-size:clamp(2.1rem,4.8vw,3.35rem);
  font-weight:800;line-height:1.15;letter-spacing:-.02em;
}
.hero-cat-sub{margin-top:18px;font-size:16.5px;color:var(--text);max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}

.search-box{
  margin-top:28px;display:flex;align-items:center;gap:10px;
  background:var(--paper);border:1px solid var(--line);border-radius:16px;
  padding:8px 8px 8px 16px;box-shadow:var(--sd1);max-width:560px;
  transition:border-color .2s,box-shadow .2s;
}
.search-box:focus-within{border-color:var(--brand-light);box-shadow:0 0 0 3px rgba(23,160,143,.28),var(--sd1)}
.search-box svg{flex:0 0 auto;color:var(--muted)}
.search-box input{
  flex:1 1 auto;min-width:0;border:0;background:transparent;
  height:40px;font-size:15px;color:var(--ink);
}
.search-box input::placeholder{color:#9AA6A2}
.search-box input:focus{outline:none}

.hero-cat-media{position:relative}
.hero-cat-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-hero);box-shadow:var(--sd3);
}
.float-card{
  position:absolute;right:-12px;bottom:-18px;
  display:flex;align-items:center;gap:12px;
  background:var(--paper);border:1px solid var(--line);border-radius:18px;
  padding:14px 18px;box-shadow:var(--sd2);max-width:250px;
}
.float-badge{
  width:34px;height:34px;border-radius:50%;flex:0 0 auto;
  background:var(--brand-grad);color:#fff;display:grid;place-items:center;
  font-size:16px;font-weight:800;
}
.float-card strong{display:block;font-size:14.5px;color:var(--ink);line-height:1.4}
.float-card span{font-size:12.5px;color:var(--muted);line-height:1.4}

/* ============================================================
   通用板块
   ============================================================ */
.section{padding:96px 0}
.section-tight{padding:56px 0}
.section-alt{background:var(--sub)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{font-size:clamp(1.6rem,3vw,2.25rem);font-weight:750;line-height:1.25}
.section-head p{margin-top:16px;color:var(--muted);font-size:16px}

/* 徽章横排 */
.badge-row{display:flex;flex-wrap:wrap;gap:12px;margin:0}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  height:34px;padding:0 16px;border-radius:999px;
  font-size:13.5px;font-weight:600;color:var(--text);
  background:var(--paper);border:1px solid rgba(23,160,143,.35);
}
.badge b{color:var(--brand);font-size:15px;font-weight:800;font-variant-numeric:tabular-nums}
.badge-amber{background:var(--amber-soft);border-color:transparent;color:#5A3A05}
.badge-amber b{color:#5A3A05}
.badge-coral{background:rgba(255,107,90,.12);border-color:rgba(255,107,90,.35);color:#B33A2C}
.badge-coral b{color:#B33A2C}

/* ============================================================
   等级大卡网格
   ============================================================ */
.tier-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.tier-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sd1);
  display:flex;flex-direction:column;
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out,background .2s;
}
.tier-card:hover{transform:translateY(-2px);border-color:var(--brand-light);box-shadow:var(--sd2)}
.tier-card-wide{
  grid-column:span 2;
  display:grid;grid-template-columns:0.9fr 1.1fr;gap:28px;align-items:center;
  padding:0;overflow:hidden;
  background:linear-gradient(140deg,#FFFFFF 0%,#F4FBF8 100%);
}
.tier-wide-media{height:100%;min-height:260px;overflow:hidden}
.tier-wide-media img{
  width:100%;height:100%;min-height:260px;object-fit:cover;
  transition:transform .35s ease-out;
}
.tier-card-wide:hover .tier-wide-media img{transform:scale(1.03)}
.tier-wide-body{padding:32px 32px 32px 0}
.tier-wide-body h3{font-size:1.5rem}
.tier-card h3{font-size:1.25rem;margin-top:16px}
.tier-card > p{margin-top:12px;font-size:15px;color:var(--muted);line-height:1.8}
.tier-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.tier-icon{
  width:48px;height:48px;border-radius:14px;
  display:grid;place-items:center;flex:0 0 auto;
  background:rgba(23,160,143,.12);color:var(--brand);
}
.tier-list{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.tier-list li{
  position:relative;padding-left:26px;font-size:14.5px;color:var(--text);line-height:1.7;
}
.tier-list li::before{
  content:"";position:absolute;left:0;top:9px;width:14px;height:8px;
  border-left:2px solid var(--brand-light);border-bottom:2px solid var(--brand-light);
  transform:rotate(-45deg);border-radius:1px;
}
.tier-foot{
  margin-top:24px;padding-top:18px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
}
.tier-meta{font-size:13px;color:var(--muted)}
.tier-price{font-size:15px;font-weight:700;color:var(--brand-dark)}
.tier-price b{font-size:1.6rem;font-weight:800;font-family:var(--font-num);font-variant-numeric:tabular-nums}

.search-empty{
  margin-top:28px;padding:24px;border-radius:var(--r-card);
  background:var(--paper);border:1px dashed var(--line);
  text-align:center;color:var(--muted);font-size:14.5px;
}
.search-empty[hidden]{display:none}

/* ============================================================
   权益明细
   ============================================================ */
.detail-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start}
.detail-side{position:sticky;top:112px}
.detail-side h2{font-size:clamp(1.5rem,2.6vw,2rem)}
.detail-side p{margin-top:14px;color:var(--muted);font-size:15.5px}
.detail-list{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.detail-item{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sd1);
  transition:transform .2s ease-out,border-color .2s,box-shadow .2s;
}
.detail-item:hover{transform:translateY(-2px);border-color:var(--brand-light);box-shadow:var(--sd2)}
.detail-item h3{font-size:1.05rem;display:flex;align-items:center;gap:10px}
.detail-item h3 svg{color:var(--brand-light);flex:0 0 auto}
.detail-item p{margin-top:10px;font-size:14.5px;color:var(--muted);line-height:1.8}

/* ============================================================
   流程
   ============================================================ */
.flow-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.flow-steps{display:flex;flex-direction:column;gap:20px}
.flow-step{
  display:flex;gap:20px;background:var(--paper);border:1px solid var(--line);
  border-radius:var(--r-card);padding:24px;box-shadow:var(--sd1);
  transition:transform .2s ease-out,border-color .2s,box-shadow .2s;
}
.flow-step:hover{transform:translateY(-2px);border-color:var(--brand-light);box-shadow:var(--sd2)}
.flow-num{
  width:44px;height:44px;border-radius:14px;flex:0 0 auto;
  background:var(--brand-grad);color:#fff;
  display:grid;place-items:center;font-weight:800;font-size:17px;
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
}
.flow-step h3{font-size:1.05rem}
.flow-step p{margin-top:8px;font-size:14.5px;color:var(--muted);line-height:1.8}
.flow-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-lg);box-shadow:var(--sd2);
}

/* ============================================================
   FAQ
   ============================================================ */
.faq-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start}
.faq-intro h2{font-size:clamp(1.5rem,2.6vw,2rem)}
.faq-intro p{margin-top:14px;color:var(--muted);font-size:15.5px}
.faq-intro .btn{margin-top:24px}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--paper);border:1px solid var(--line);
  border-radius:16px;overflow:hidden;transition:border-color .2s,box-shadow .2s;
}
.faq-item.open{border-color:var(--brand-light);box-shadow:var(--sd1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:16px 22px;text-align:left;
  font-size:15.5px;font-weight:700;color:var(--ink);
}
.faq-q:hover{color:var(--brand)}
.faq-q .chev{flex:0 0 auto;color:var(--muted);transition:transform .25s ease-out}
.faq-item.open .chev{transform:rotate(180deg);color:var(--brand)}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .3s ease-out;
}
.faq-a-inner{
  padding:0 22px 20px 22px;margin-left:16px;
  border-top:1px solid var(--line);padding-top:16px;
  font-size:15px;color:var(--muted);line-height:1.9;
}

/* ============================================================
   CTA
   ============================================================ */
.cta-card{
  position:relative;overflow:hidden;
  background:var(--dark);border-radius:var(--r-lg);
  padding:56px;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;
}
.cta-glow{
  position:absolute;top:-160px;left:-80px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(63,198,165,.35),rgba(63,198,165,0) 70%);
  pointer-events:none;
}
.cta-left{position:relative;z-index:1}
.cta-left h2{color:#fff;font-size:clamp(1.5rem,2.8vw,2.1rem)}
.cta-left p{margin-top:16px;color:rgba(243,247,245,.75);font-size:15.5px;max-width:520px}
.cta-points{margin-top:22px;display:flex;flex-direction:column;gap:10px}
.cta-points li{
  position:relative;padding-left:24px;font-size:14.5px;color:rgba(243,247,245,.85);
}
.cta-points li::before{
  content:"";position:absolute;left:0;top:9px;width:13px;height:7px;
  border-left:2px solid var(--amber);border-bottom:2px solid var(--amber);
  transform:rotate(-45deg);
}
.cta-form{
  position:relative;z-index:1;background:rgba(255,255,255,.06);
  border:1px solid rgba(243,247,245,.16);border-radius:var(--r-card);
  padding:28px;backdrop-filter:blur(4px);
}
.field-label{display:block;font-size:13.5px;color:rgba(243,247,245,.8);margin-bottom:8px;font-weight:600}
.field{
  width:100%;height:48px;border-radius:14px;padding:0 16px;
  background:rgba(255,255,255,.96);border:1px solid transparent;
  color:var(--ink);font-size:15px;transition:box-shadow .2s,border-color .2s;
}
.field::placeholder{color:#9AA6A2}
.field:focus{outline:none;border-color:var(--brand-light);box-shadow:0 0 0 3px rgba(23,160,143,.4)}
.field.is-error{border-color:var(--coral);box-shadow:0 0 0 3px rgba(255,107,90,.28)}
.field-error{font-size:13px;color:var(--coral);margin-top:8px}
.field-error[hidden]{display:none}
.agree{
  display:flex;align-items:flex-start;gap:10px;margin:16px 0 4px;
  font-size:13.5px;color:rgba(243,247,245,.75);line-height:1.7;cursor:pointer;
}
.agree input{
  appearance:none;-webkit-appearance:none;
  width:20px;height:20px;flex:0 0 auto;margin-top:2px;
  border-radius:6px;background:rgba(255,255,255,.92);
  border:1px solid rgba(243,247,245,.4);position:relative;cursor:pointer;
  transition:background .2s,border-color .2s;
}
.agree input:checked{background:var(--brand-light);border-color:var(--brand-light)}
.agree input:checked::after{
  content:"";position:absolute;left:6px;top:2px;width:6px;height:11px;
  border-left:2px solid #fff;border-bottom:2px solid #fff;transform:rotate(-45deg);
}
.cta-form .btn{margin-top:20px}
.form-hint{margin-top:14px;font-size:12.5px;color:rgba(243,247,245,.6);line-height:1.7}
.form-success{
  margin-top:14px;font-size:13.5px;color:#7FE3BF;font-weight:600;
}
.form-success[hidden]{display:none}

/* ============================================================
   Footer
   ============================================================ */
.site-footer{background:var(--dark);color:rgba(243,247,245,.72);padding:72px 0 0;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.foot-col h3{color:#fff;font-size:15px;margin-bottom:16px;font-weight:700}
.foot-col a{display:block;padding:7px 0;font-size:14px;color:rgba(243,247,245,.72)}
.foot-col a:hover{color:var(--amber-soft)}
.foot-brand .logo{color:#fff}
.foot-brand p{font-size:14px;line-height:1.85;margin-top:16px;max-width:330px;color:rgba(243,247,245,.72)}
.contact-item{display:block;padding:6px 0;font-size:14px}
.foot-bottom{
  border-top:1px solid rgba(243,247,245,.14);
  padding:20px 0 28px;display:flex;justify-content:space-between;
  gap:12px;flex-wrap:wrap;font-size:13px;color:rgba(243,247,245,.55);
}
.foot-bottom a{color:rgba(243,247,245,.78)}
.foot-bottom a:hover{color:var(--amber-soft)}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1279px){
  .hero-cat-grid{gap:40px}
  .tier-wide-body{padding:28px 28px 28px 0}
}

@media (max-width:1023px){
  .nav-links{display:none}
  .nav-actions .btn-outline{display:none}
  .hamburger{display:grid}
  .section{padding:72px 0}
  .section-tight{padding:44px 0}
  .hero-cat{padding:24px 0 56px}
  .hero-cat-grid{grid-template-columns:1fr;gap:36px}
  .hero-cat-sub{max-width:100%}
  .float-card{right:12px;bottom:-16px}
  .tier-grid{grid-template-columns:repeat(2,1fr)}
  .tier-card-wide{grid-column:span 2;grid-template-columns:1fr;padding:0}
  .tier-wide-media img{min-height:220px}
  .tier-wide-body{padding:26px 28px 30px}
  .detail-grid{grid-template-columns:1fr;gap:32px}
  .detail-side{position:static}
  .flow-grid{grid-template-columns:1fr;gap:36px}
  .faq-grid{grid-template-columns:1fr;gap:32px}
  .cta-card{grid-template-columns:1fr;padding:40px;gap:32px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}

@media (max-width:767px){
  body{font-size:16px;line-height:1.8}
  .container{padding:0 18px}
  .topbar{height:auto;padding:8px 0;font-size:12.5px}
  .topbar .container{flex-direction:row;align-items:center}
  .topbar-left span:last-child{display:none}
  .nav .container{min-height:64px;gap:12px}
  .logo{font-size:16.5px}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .hero-cat h1{font-size:clamp(1.85rem,7vw,2.4rem)}
  .search-box{padding:6px 6px 6px 14px}
  .search-box .btn{height:38px;padding:0 14px}
  .float-card{position:static;margin-top:16px;max-width:100%}
  .tier-grid{grid-template-columns:1fr}
  .tier-card-wide{grid-column:span 1}
  .detail-list{grid-template-columns:1fr}
  .cta-card{padding:28px 22px;border-radius:22px}
  .cta-form{padding:22px}
  .foot-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .foot-bottom{flex-direction:column}
}

@media (max-width:479px){
  body{font-size:15.5px}
  .btn{width:100%;padding:0 18px}
  .btn-sm{width:auto}
  .nav-actions .btn-sm{width:auto;padding:0 14px;font-size:13px}
  .hero-actions .btn{width:100%}
  .search-box{flex-wrap:wrap}
  .search-box input{width:100%;flex:1 0 100%}
  .search-box .btn{width:100%}
  .tier-foot{flex-direction:column;align-items:flex-start}
  h1{letter-spacing:-.01em}
}

/* roulang page: category4 */
:root{
  --brand:#0B6B5E;
  --brand-d:#08423A;
  --brand-l:#17A08F;
  --brand-grad:linear-gradient(128deg,#0B6B5E 0%,#17A08F 52%,#3FC6A5 100%);
  --amber:#F0A93B;
  --amber-l:#FFD79A;
  --coral:#FF6B5A;
  --ok:#128A6B;
  --warn:#C8871B;
  --bg:#F7F5EF;
  --paper:#FFFFFF;
  --surface:#EFEDE4;
  --dark:#07201C;
  --ink:#0F1A18;
  --body:#33403D;
  --muted:#6B7A76;
  --inv:#F3F7F5;
  --line:#E3E1D8;
  --r:20px;
  --r-lg:28px;
  --r-hero:32px;
  --pill:999px;
  --sd1:0 1px 2px rgba(8,66,58,.06),0 8px 24px -12px rgba(8,66,58,.18);
  --sd2:0 18px 44px -18px rgba(8,66,58,.28);
  --sd3:0 30px 70px -28px rgba(8,66,58,.35);
  --sp:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--body);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.02em}
h1{font-size:clamp(2.1rem,4.8vw,3.35rem);line-height:1.15}
h2{font-size:clamp(1.6rem,3vw,2.25rem);line-height:1.25;font-weight:750}
h3{font-size:1.25rem;line-height:1.4;font-weight:700}
p{margin:0}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
button,input{font:inherit;color:inherit}
ul{margin:0;padding:0;list-style:none}
svg{flex:none}
[hidden]{display:none !important}
.num{font-variant-numeric:tabular-nums;font-family:"Manrope",system-ui,sans-serif}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-alt{background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* ---------- 顶部状态条 ---------- */
.topbar{
  height:40px;
  background:var(--dark);
  color:#BFD3CD;
  font-size:13px;
  display:flex;
  align-items:center;
}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-left,.topbar-right{display:flex;align-items:center;gap:12px}
.topbar-right a{color:#9FC4BB;border-bottom:1px solid transparent;transition:.2s}
.topbar-right a:hover{color:#3FC6A5;border-color:#3FC6A5}
.status-dot{width:8px;height:8px;border-radius:50%;background:#3FC6A5;box-shadow:0 0 0 4px rgba(63,198,165,.18)}
.status-label{color:#E4F2EE;font-weight:500}
.countdown{color:var(--amber-l);font-weight:800;letter-spacing:.02em}
.topbar-close{
  width:26px;height:26px;border:0;border-radius:8px;background:rgba(255,255,255,.08);
  display:grid;place-items:center;color:#BFD3CD;cursor:pointer;transition:.2s;
}
.topbar-close:hover{background:rgba(255,255,255,.18);color:#fff}
.topbar-close:focus-visible{outline:3px solid rgba(63,198,165,.5);outline-offset:2px}

/* ---------- 导航 ---------- */
.site-header{position:relative;z-index:60}
.nav{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s ease,border-color .25s ease;
}
.nav.is-stuck{box-shadow:var(--sd1);border-bottom-color:var(--line)}
.nav .container{display:flex;align-items:center;gap:20px;height:72px}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-weight:800;font-size:17px;color:var(--ink);letter-spacing:-.01em;white-space:nowrap;
}
.logo-mark{
  width:34px;height:34px;border-radius:11px;background:var(--brand-grad);
  display:grid;place-items:center;box-shadow:var(--sd1);flex:none;
}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:8px}
.nav-links a{
  position:relative;display:block;padding:9px 14px;border-radius:12px;
  font-size:15px;font-weight:600;color:var(--body);transition:.2s ease-out;
}
.nav-links a:hover{background:var(--surface);color:var(--brand-d)}
.nav-links a.active{color:var(--brand-d);font-weight:700}
.nav-links a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;
  border-radius:3px;background:var(--brand-grad);
}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:var(--pill);
  font-weight:700;font-size:15px;line-height:1;padding:13px 24px;
  cursor:pointer;transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-primary{
  background:var(--brand-grad);background-size:130% 100%;
  color:#fff;box-shadow:var(--sd2);
}
.btn-primary:hover{transform:translateY(-2px);background-position:14% 0;box-shadow:var(--sd3)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{
  background:#fff;border-color:#BFD9D2;color:var(--brand-d);border-radius:14px;
}
.btn-outline:hover{background:var(--surface);border-color:var(--brand-l)}
.btn:focus-visible{outline:3px solid rgba(23,160,143,.45);outline-offset:2px}
.btn[disabled]{filter:saturate(.4);cursor:not-allowed;box-shadow:none;transform:none}
.hamburger{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;
  border-radius:14px;cursor:pointer;align-items:center;justify-content:center;transition:.2s;
}
.hamburger:hover{background:var(--surface)}
.hamburger:focus-visible{outline:3px solid rgba(23,160,143,.45);outline-offset:2px}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(7,32,28,.45);
  opacity:0;visibility:hidden;transition:.25s ease-out;z-index:80;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:86%;max-width:360px;z-index:90;
  background:#fff;border-radius:24px 0 0 24px;box-shadow:var(--sd3);
  transform:translateX(102%);transition:transform .28s ease-out;
  padding:22px;display:flex;flex-direction:column;gap:8px;overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}
.drawer-close{
  width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:14px;
  display:grid;place-items:center;cursor:pointer;
}
.drawer-close:focus-visible{outline:3px solid rgba(23,160,143,.45);outline-offset:2px}
.drawer a.drawer-link{
  padding:14px 16px;border-radius:14px;font-weight:600;color:var(--body);
  border:1px solid transparent;transition:.2s;
}
.drawer a.drawer-link:hover{background:var(--surface);color:var(--brand-d)}
.drawer a.drawer-link.active{background:#EAF6F2;color:var(--brand-d);border-color:#CBEAE2}
.drawer-cta{display:flex;flex-direction:column;gap:10px;margin-top:12px}
.drawer-cta .btn{width:100%}
.drawer-badge{
  margin-top:14px;display:inline-flex;align-items:center;gap:8px;align-self:flex-start;
  background:var(--amber-l);color:#3D2A05;font-size:13px;font-weight:700;
  padding:7px 14px;border-radius:var(--pill);
}

/* ---------- 面包屑 ---------- */
.crumb-wrap{background:var(--bg);border-bottom:1px solid var(--line)}
.crumb{display:flex;align-items:center;gap:8px;height:48px;font-size:13.5px;color:var(--muted);flex-wrap:wrap}
.crumb a{color:var(--brand-d);transition:.2s}
.crumb a:hover{color:var(--brand-l)}
.crumb .sep{color:#B9C2BE}
.crumb .now{color:var(--muted)}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:64px 0 76px;
  background:
    radial-gradient(920px 460px at 90% -12%, rgba(63,198,165,.22), transparent 68%),
    linear-gradient(180deg,#F1F7F4 0%,#F7F5EF 100%);
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid #CBEAE2;color:var(--brand-d);
  font-size:13px;font-weight:700;padding:7px 14px;border-radius:var(--pill);
  box-shadow:var(--sd1);margin-bottom:20px;
}
.hero h1{margin-bottom:18px}
.hero-sub{font-size:17px;line-height:1.9;color:var(--body);max-width:600px}
.search-form{
  margin-top:28px;display:flex;gap:8px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--pill);
  padding:8px 8px 8px 18px;box-shadow:var(--sd2);max-width:620px;
  transition:border-color .2s,box-shadow .2s;
}
.search-form:focus-within{border-color:var(--brand-l);box-shadow:var(--sd3),0 0 0 4px rgba(23,160,143,.14)}
.search-form svg{color:var(--muted)}
.search-form input{
  flex:1;min-width:0;border:0;outline:none;background:transparent;
  padding:12px 4px;font-size:15px;
}
.search-form input::placeholder{color:#9AA8A4}
.search-form .btn{border-radius:var(--pill);padding:12px 22px}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.chip-label{font-size:13px;color:var(--muted);align-self:center}
.chip{
  background:#fff;border:1px solid var(--line);border-radius:var(--pill);
  padding:6px 14px;font-size:13px;color:var(--body);cursor:pointer;transition:.2s;
}
.chip:hover{border-color:var(--brand-l);color:var(--brand-d);background:#F4FBF9}
.chip:focus-visible{outline:3px solid rgba(23,160,143,.45);outline-offset:2px}

.hero-figure{position:relative}
.hero-figure img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-hero);
  box-shadow:var(--sd3);
}
.float-card{
  position:absolute;right:-12px;bottom:-20px;
  background:#fff;border:1px solid var(--line);border-radius:18px;
  box-shadow:var(--sd2);padding:14px 18px;display:flex;align-items:center;gap:12px;
  max-width:270px;
}
.float-card .fc-ic{
  width:38px;height:38px;border-radius:50%;background:#E4F5F0;color:var(--ok);
  display:grid;place-items:center;flex:none;
}
.float-card strong{display:block;font-size:14px;color:var(--ink)}
.float-card span{display:block;font-size:12.5px;color:var(--muted);line-height:1.5}

/* ---------- 通用板块头 ---------- */
.sec-head{margin-bottom:40px;max-width:760px}
.sec-head p{margin-top:14px;color:var(--muted);line-height:1.85}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.tagline{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--brand);background:#E4F5F0;padding:6px 14px;border-radius:var(--pill);margin-bottom:16px;
}

/* ---------- 帮助入口卡片（12 列非等宽） ---------- */
.help-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.help-card{
  grid-column:span 5;
  display:flex;flex-direction:column;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r);
  box-shadow:var(--sd1);overflow:hidden;
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.help-card.wide{grid-column:span 7}
.help-card:hover{transform:translateY(-2px);border-color:var(--brand-l);box-shadow:var(--sd2)}
.help-card .thumb{overflow:hidden}
.help-card .thumb img{
  width:100%;aspect-ratio:16/7;object-fit:cover;transition:transform .2s ease-out;
}
.help-card.wide .thumb img{aspect-ratio:16/6.4}
.help-card:hover .thumb img{transform:scale(1.03)}
.help-body{padding:24px 26px 26px;display:flex;flex-direction:column;gap:12px;flex:1}
.help-body h3{margin:0}
.help-body p{font-size:15px;color:var(--muted);line-height:1.8}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;
  border-radius:var(--pill);font-size:12.5px;font-weight:700;
}
.badge-amber{background:var(--amber-l);color:#3D2A05}
.badge-line{background:#fff;border:1px solid #CBEAE2;color:var(--brand-d)}
.badge-ok{background:#E4F5F0;color:var(--ok)}
.help-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  gap:12px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);
}
.link-arrow{color:var(--brand-d);font-weight:700;display:inline-flex;align-items:center;gap:6px}
.link-arrow:hover{color:var(--brand-l)}
.link-arrow svg{transition:transform .2s ease-out}
.link-arrow:hover svg{transform:translateY(2px)}

/* ---------- 自助排查步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:st}
.step{
  position:relative;background:var(--paper);border:1px solid var(--line);
  border-radius:var(--r);padding:28px 24px;box-shadow:var(--sd1);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.step:hover{transform:translateY(-2px);border-color:var(--brand-l);box-shadow:var(--sd2)}
.step-no{
  width:44px;height:44px;border-radius:14px;background:#E4F5F0;color:var(--brand-d);
  display:grid;place-items:center;font-weight:800;font-size:17px;margin-bottom:18px;
  font-family:"Manrope",system-ui,sans-serif;
}
.step h3{font-size:1.05rem;margin-bottom:10px}
.step p{font-size:14.5px;color:var(--muted);line-height:1.8}
.step-line{position:absolute;top:50px;right:-14px;width:28px;height:2px;background:linear-gradient(90deg,#CBEAE2,transparent)}
.step:last-child .step-line{display:none}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start}
.faq-aside{position:sticky;top:104px}
.faq-aside h2{margin-bottom:16px}
.faq-aside p{color:var(--muted);line-height:1.85}
.faq-aside .aside-note{
  margin-top:24px;background:#fff;border:1px solid var(--line);border-radius:var(--r);
  padding:22px;box-shadow:var(--sd1);
}
.faq-aside .aside-note strong{display:block;color:var(--ink);margin-bottom:8px;font-size:15px}
.faq-aside .aside-note span{font-size:14px;color:var(--muted);line-height:1.8}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;min-height:56px;background:transparent;border:0;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 4px;text-align:left;font-size:16px;font-weight:700;color:var(--ink);
  transition:color .2s;
}
.faq-q:hover{color:var(--brand-d)}
.faq-q:focus-visible{outline:3px solid rgba(23,160,143,.4);outline-offset:-2px;border-radius:10px}
.faq-ico{
  width:30px;height:30px;border-radius:50%;background:#F1F5F3;color:var(--brand-d);
  display:grid;place-items:center;flex:none;transition:transform .25s ease-out,background .2s;
}
.faq-item.open .faq-ico{transform:rotate(180deg);background:#E4F5F0}
.faq-a{padding:0 4px 20px 16px;border-top:1px solid var(--line);margin-top:2px}
.faq-a p{font-size:15px;color:var(--body);line-height:1.95;padding-top:16px}
.faq-empty{
  padding:40px 24px;text-align:center;color:var(--muted);
  display:flex;flex-direction:column;align-items:center;gap:14px;
}
.faq-empty strong{color:var(--ink);font-size:16px}

/* ---------- 标签云 ---------- */
.tag-panel{
  display:grid;grid-template-columns:8fr 4fr;gap:32px;align-items:stretch;
}
.tag-box,.service-box{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px;box-shadow:var(--sd1);
}
.tag-box h3,.service-box h3{margin-bottom:16px}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  border:1px solid var(--line);background:#FCFBF7;border-radius:var(--pill);
  padding:8px 16px;font-size:14px;color:var(--body);cursor:pointer;transition:.2s;
}
.tag:hover{background:#E4F5F0;border-color:#CBEAE2;color:var(--brand-d)}
.tag:focus-visible{outline:3px solid rgba(23,160,143,.45);outline-offset:2px}
.service-box{background:var(--paper)}
.service-list li{
  display:flex;align-items:flex-start;gap:10px;padding:10px 0;
  font-size:14.5px;color:var(--body);border-bottom:1px dashed var(--line);
}
.service-list li:last-child{border-bottom:0}
.dot-ok{width:18px;height:18px;border-radius:50%;background:#E4F5F0;color:var(--ok);display:grid;place-items:center;flex:none;margin-top:4px}

/* ---------- CTA ---------- */
.cta-card{
  position:relative;overflow:hidden;background:var(--dark);color:var(--inv);
  border-radius:var(--r-lg);padding:56px;
  display:grid;grid-template-columns:6fr 5fr;gap:48px;align-items:center;
  background-image:
    radial-gradient(520px 320px at 12% 0%, rgba(23,160,143,.42), transparent 70%),
    radial-gradient(460px 320px at 100% 100%, rgba(63,198,165,.30), transparent 72%),
    linear-gradient(128deg,#07201C 0%,#0A2C26 100%);
  background-size:cover;background-position:center;
  box-shadow:var(--sd3);
}
.cta-card h2{color:#fff}
.cta-card p{color:#B9D2CB;margin-top:16px;line-height:1.9;max-width:520px}
.cta-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.cta-points .badge{background:rgba(255,255,255,.1);color:#DFF3EE;border:1px solid rgba(255,255,255,.16)}
.cta-form{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r);padding:26px;backdrop-filter:blur(6px);
}
.cta-form label{display:block;font-size:13.5px;color:#CFE4DE;margin-bottom:10px;font-weight:600}
.cta-form input[type="text"]{
  width:100%;height:48px;border-radius:14px;border:1px solid rgba(255,255,255,.2);
  background:rgba(7,32,28,.5);color:#fff;padding:0 16px;outline:none;
  transition:border-color .2s,box-shadow .2s;
}
.cta-form input[type="text"]::placeholder{color:#8FA9A2}
.cta-form input[type="text"]:focus{border-color:var(--brand-l);box-shadow:0 0 0 3px rgba(23,160,143,.35)}
.cta-form input.invalid{border-color:var(--coral);box-shadow:0 0 0 3px rgba(255,107,90,.22)}
.form-row{display:flex;gap:10px;margin-top:16px}
.form-row .btn{width:100%}
.form-err{display:block;margin-top:8px;font-size:13px;color:#FFB4A9;min-height:18px}
.agree{display:flex;align-items:flex-start;gap:10px;margin-top:16px;font-size:13.5px;color:#B9D2CB}
.agree input{width:20px;height:20px;accent-color:var(--brand-l);margin:2px 0 0;flex:none}
.tip-line{margin-top:14px;font-size:13px;color:#9CBDB5}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#A9BDB7;padding:72px 0 0;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.foot-col h3{color:#fff;font-size:15px;margin:0 0 16px;font-weight:700;letter-spacing:0}
.foot-col a{display:block;padding:6px 0;font-size:14px;color:#A9BDB7;transition:color .2s}
.foot-col a:hover{color:#3FC6A5}
.foot-brand .logo{color:#fff;font-size:16.5px;margin-bottom:16px}
.foot-brand p{font-size:14px;line-height:1.85;color:#A9BDB7;max-width:340px}
.contact-item{display:block;font-size:14px;padding:6px 0;color:#A9BDB7}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.1);margin-top:48px;padding:22px 0;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8FA9A2;
}
.foot-bottom a{color:#3FC6A5}
.foot-bottom a:hover{text-decoration:underline}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .section{padding:72px 0}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-figure img{aspect-ratio:16/9}
  .float-card{right:12px;bottom:-16px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step-line{display:none}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .faq-aside{position:static}
  .tag-panel{grid-template-columns:1fr}
  .cta-card{grid-template-columns:1fr;padding:44px}
  .help-card,.help-card.wide{grid-column:span 6}
}
@media (max-width:768px){
  body{font-size:16px}
  .nav .container{height:64px;gap:12px}
  .nav-links{display:none}
  .nav-actions .btn-outline{display:none}
  .hamburger{display:inline-flex}
  .topbar{height:auto;padding:8px 0;font-size:12.5px}
  .topbar .container{flex-wrap:wrap;gap:8px}
  .topbar-left{flex-wrap:wrap;gap:8px}
  .section{padding:56px 0}
  .hero{padding:48px 0 56px}
  .help-card,.help-card.wide{grid-column:span 12}
  .steps{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .search-form{flex-wrap:wrap;border-radius:20px;padding:12px}
  .search-form input{width:100%;padding:8px 4px}
  .search-form .btn{width:100%}
}
@media (max-width:520px){
  .container{padding:0 18px}
  h1{font-size:clamp(1.75rem,7.4vw,2.2rem)}
  .foot-grid{grid-template-columns:1fr}
  .cta-card{padding:28px 22px}
  .cta-points{flex-direction:column;align-items:flex-start}
  .btn{width:100%}
  .nav-actions .btn{width:auto}
  .help-meta{flex-wrap:wrap}
  .tag-box,.service-box{padding:24px}
}