/* roulang page: index */
:root{
  --deep:#063B35;
  --deep-2:#0B6A5E;
  --teal:#12A08C;
  --teal-soft:#6ED0BE;
  --teal-pale:#DCF1EC;
  --coral:#FF7A59;
  --coral-dark:#E85C3B;
  --amber:#F2B33D;
  --ink:#0E2A26;
  --muted:#4A6360;
  --ph:#8AA09B;
  --line:#DDE7E3;
  --bg:#F6F8F5;
  --bg-alt:#ECF4F1;
  --white:#FFFFFF;
  --grad-brand:linear-gradient(120deg,#063B35 0%,#0B6A5E 45%,#12A08C 100%);
  --grad-warm:linear-gradient(120deg,#FF7A59 0%,#F2B33D 100%);
  --r-card:22px;
  --r-img:16px;
  --r-btn:999px;
  --r-in:12px;
  --sh-1:0 1px 2px rgba(6,59,53,.06),0 8px 24px rgba(6,59,53,.08);
  --sh-2:0 16px 40px rgba(6,59,53,.14);
  --ease:cubic-bezier(.3,.7,.4,1);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--deep-2);text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--teal)}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
::selection{background:var(--teal-pale);color:var(--deep)}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(18,160,140,.28);border-radius:8px}

.container{width:min(1200px,calc(100% - 48px));margin-inline:auto}

/* ---------- 顶部头图 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.99);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s var(--ease),background .3s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(12px);
  box-shadow:0 8px 26px rgba(6,59,53,.09);
}
.header-top{height:72px;display:flex;align-items:center}
.header-top-inner{display:flex;align-items:center;gap:22px;width:min(1200px,calc(100% - 48px));margin-inline:auto;height:100%}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background:var(--grad-brand);
  display:grid;place-items:center;box-shadow:0 6px 16px rgba(6,59,53,.22);
}
.brand-mark svg{width:22px;height:22px;display:block}
.brand-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-.3px;white-space:nowrap}
.header-search{
  flex:1;max-width:360px;display:flex;align-items:center;gap:8px;
  height:40px;padding:0 6px 0 16px;border-radius:999px;
  background:var(--bg-alt);border:1px solid transparent;transition:all .24s var(--ease);
}
.header-search:focus-within{background:#fff;border-color:var(--teal-soft);box-shadow:0 0 0 3px rgba(18,160,140,.16)}
.header-search input{
  flex:1;border:0;background:transparent;font-size:14px;color:var(--ink);height:100%;padding:0;
}
.header-search input::placeholder{color:var(--ph)}
.header-search input:focus{outline:none}
.header-search button{
  width:30px;height:30px;border:0;border-radius:999px;background:var(--teal);
  display:grid;place-items:center;cursor:pointer;transition:background .22s var(--ease);
}
.header-search button:hover{background:var(--deep-2)}
.header-search button svg{width:14px;height:14px;stroke:#fff;fill:none;stroke-width:2.2}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:#fff;cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--deep-2);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--deep-2);border-radius:2px;transition:transform .24s var(--ease)
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.site-header.menu-open .nav-toggle span{background:transparent}
.site-header.menu-open .nav-toggle span::before{transform:translateY(6px) rotate(45deg)}
.site-header.menu-open .nav-toggle span::after{transform:translateY(-6px) rotate(-45deg)}

.header-channels{border-top:1px solid var(--line);background:#fff}
.channels-inner{
  display:flex;gap:8px;overflow-x:auto;padding:10px 0;scrollbar-width:none;
  -ms-overflow-style:none;
}
.channels-inner::-webkit-scrollbar{display:none}
.channel{
  flex:none;padding:8px 18px;border-radius:999px;border:1px solid var(--line);
  color:var(--muted);font-size:14px;font-weight:500;white-space:nowrap;
  transition:all .22s var(--ease);
}
.channel:hover{background:var(--teal-pale);border-color:var(--teal-soft);color:var(--deep-2)}
.channel.is-active{background:var(--teal);border-color:var(--teal);color:#fff;font-weight:600;box-shadow:0 6px 16px rgba(18,160,140,.26)}
.channel.is-active:hover{color:#fff;background:var(--deep-2);border-color:var(--deep-2)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .22s var(--ease),background .22s var(--ease),box-shadow .22s var(--ease),color .22s var(--ease);
}
.btn-primary{background:var(--coral);color:#fff;box-shadow:0 10px 24px rgba(255,122,89,.28)}
.btn-primary:hover{background:var(--coral-dark);color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(232,92,59,.34)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(232,92,59,.28)}
.btn-outline{background:#fff;border-color:var(--teal);color:var(--deep-2)}
.btn-outline:hover{background:var(--teal-pale);color:var(--deep-2);transform:translateY(-2px)}
.btn-outline:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--muted)}
.btn-ghost:hover{border-color:var(--teal-soft);color:var(--deep-2);background:var(--teal-pale)}
.btn-sm{min-height:38px;padding:0 18px;font-size:14px}
.btn-light{background:#fff;color:var(--deep-2)}
.btn-light:hover{background:var(--teal-pale);color:var(--deep)}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--deep-2)}
.link-arrow span{transition:transform .22s var(--ease)}
.link-arrow:hover{color:var(--teal)}
.link-arrow:hover span{transform:translateX(4px)}

/* ---------- Hero ---------- */
.hero{position:relative;padding:64px 0 80px;overflow:hidden;background:
  radial-gradient(900px 460px at 88% 6%,rgba(110,208,190,.16),transparent 70%),
  var(--bg);
}
.hero-inner{display:grid;grid-template-columns:1.06fr .94fr;gap:56px;align-items:center}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
  background:var(--teal-pale);color:var(--deep-2);font-size:12px;font-weight:600;letter-spacing:.2px;
}
.tag-warm{background:rgba(255,122,89,.13);color:var(--coral-dark)}
.hero h1{
  font-size:clamp(30px,3.6vw,50px);
  line-height:1.18;letter-spacing:-.5px;font-weight:700;color:var(--ink);
}
.hero h1 em{font-style:normal;color:var(--deep-2);position:relative}
.hero h1 em::after{
  content:"";position:absolute;left:0;right:0;bottom:.08em;height:.34em;
  background:rgba(110,208,190,.42);border-radius:4px;z-index:-1;
}
.hero-sub{margin-top:22px;font-size:17px;line-height:1.85;color:var(--muted);max-width:46ch}
.hero-actions{margin-top:32px;display:flex;flex-wrap:wrap;gap:12px}
.hero-note{margin-top:20px;font-size:13px;color:var(--ph);display:flex;align-items:center;gap:8px}
.hero-note::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--teal-soft);flex:none}

.hero-visual{position:relative}
.hero-media{
  position:relative;border-radius:26px;overflow:hidden;aspect-ratio:16/11;
  background:var(--grad-brand);box-shadow:var(--sh-1);
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(125deg,rgba(6,59,53,.42) 0%,rgba(11,106,94,.24) 48%,rgba(18,160,140,.32) 100%);
}
.hero-media-label{
  position:absolute;left:22px;top:22px;z-index:2;
  padding:7px 14px;border-radius:999px;background:rgba(255,255,255,.9);
  color:var(--deep-2);font-size:12px;font-weight:700;letter-spacing:.3px;
}
.hero-stats{
  position:absolute;right:-10px;bottom:-26px;display:grid;grid-template-columns:repeat(3,auto);
  gap:10px;z-index:3;
}
.stat{
  background:rgba(255,255,255,.97);border:1px solid var(--line);border-radius:16px;
  padding:12px 16px;box-shadow:var(--sh-1);backdrop-filter:blur(6px);
}
.stat b{display:block;font-size:26px;line-height:1.1;font-weight:700;color:var(--teal);font-variant-numeric:tabular-nums;letter-spacing:-.5px}
.stat b small{font-size:12px;font-weight:600;margin-left:2px;color:var(--muted)}
.stat span{display:block;margin-top:2px;font-size:12px;color:var(--muted);white-space:nowrap}

/* ---------- 信任条 ---------- */
.trust{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.trust-item{padding:30px 26px;border-left:1px solid var(--line)}
.trust-item:first-child{border-left:0;padding-left:0}
.trust-item b{display:block;font-size:17px;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums}
.trust-item span{display:block;margin-top:6px;font-size:14px;line-height:1.7;color:var(--muted)}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section-alt{background:var(--bg-alt)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:40px}
.section-head .eyebrow{display:block;font-size:13px;font-weight:700;letter-spacing:1.2px;color:var(--teal);text-transform:uppercase;margin-bottom:10px}
.section-title{font-size:32px;line-height:1.25;font-weight:700;letter-spacing:-.5px;color:var(--ink)}
.section-desc{margin-top:12px;max-width:62ch;color:var(--muted);font-size:15px}

/* ---------- 阶梯卡 ---------- */
.ladder-wrap{position:relative}
.ladder-wrap::before{
  content:"";position:absolute;left:0;right:0;top:74px;border-top:1px dashed var(--line);z-index:0;
}
.ladder{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;z-index:1}
.stair-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:30px 24px 26px;overflow:hidden;
  transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease);
}
.stair-card::before{
  content:attr(data-num);position:absolute;right:12px;top:2px;
  font-size:64px;font-weight:700;line-height:1;color:rgba(18,160,140,.12);
  font-variant-numeric:tabular-nums;pointer-events:none;
}
.stair-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--teal-soft)}
.stair-card h3{font-size:19px;font-weight:700;color:var(--ink);letter-spacing:-.2px}
.stair-card .stair-desc{margin-top:10px;font-size:14px;line-height:1.75;color:var(--muted);min-height:74px}
.stair-list{margin-top:16px;padding-top:16px;border-top:1px dashed var(--line)}
.stair-list li{position:relative;padding-left:18px;font-size:14px;line-height:1.9;color:var(--muted)}
.stair-list li::before{
  content:"";position:absolute;left:0;top:.78em;width:6px;height:6px;border-radius:50%;
  background:var(--teal-soft);
}
.stair-card .link-arrow{margin-top:18px}

/* ---------- 对比表 ---------- */
.compare{border:1px solid var(--line);border-radius:24px;overflow:hidden;background:#fff;box-shadow:var(--sh-1)}
.compare-table{width:100%;border-collapse:collapse;font-size:15px}
.compare-table th,.compare-table td{padding:18px 20px;text-align:left;border-bottom:1px solid var(--line)}
.compare-table thead th{
  background:var(--teal-pale);color:var(--deep);font-size:14px;font-weight:700;letter-spacing:.2px;
}
.compare-table thead th:first-child{background:var(--bg-alt);color:var(--muted)}
.compare-table tbody th{font-weight:600;color:var(--muted);background:#FCFDFC;font-size:14px}
.compare-table tbody tr:hover td,.compare-table tbody tr:hover th{background:#F2F9F7}
.compare-table tbody tr:last-child th,.compare-table tbody tr:last-child td{border-bottom:0}
.compare-table .col-best{background:#F2F9F7;position:relative}
.compare-table thead .col-best{background:#CFEDE5;color:var(--deep)}
.badge-best{
  display:inline-block;margin-left:8px;padding:2px 9px;border-radius:999px;
  background:var(--coral);color:#fff;font-size:11px;font-weight:700;vertical-align:2px;
}
.compare-cards{display:none;gap:18px;grid-template-columns:1fr}
.compare-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:24px}
.compare-card h3{font-size:18px;font-weight:700;margin-bottom:14px;color:var(--ink)}
.compare-card dl{display:grid;grid-template-columns:auto 1fr;gap:10px 14px;font-size:14px}
.compare-card dt{color:var(--muted)}
.compare-card dd{margin:0;text-align:right;color:var(--ink);font-weight:600}

/* ---------- 限时条 ---------- */
.promo{
  background:var(--grad-warm);border-radius:24px;padding:34px 36px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:0 18px 44px rgba(232,92,59,.24);
}
.promo h3{font-size:22px;font-weight:700;letter-spacing:-.3px}
.promo p{margin-top:8px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.92);max-width:52ch}
.promo-right{display:flex;align-items:center;gap:24px;flex-wrap:wrap}
.count{display:flex;align-items:center;gap:6px}
.count span{
  display:grid;place-items:center;min-width:52px;height:52px;border-radius:12px;
  background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.28);
  font-size:21px;font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:.5px;
}
.count i{font-style:normal;font-weight:700;opacity:.7}

/* ---------- 资讯卡片 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:20px;overflow:hidden;
  transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--teal-soft)}
.news-thumb{display:block;aspect-ratio:16/10;overflow:hidden;background:var(--teal-pale)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.05)}
.news-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.pill{
  align-self:flex-start;padding:4px 11px;border-radius:999px;background:var(--teal-pale);
  color:var(--deep-2);font-size:11px;font-weight:700;letter-spacing:.3px;
}
.news-title{font-size:17px;line-height:1.5;font-weight:600;color:var(--ink)}
.news-title a{color:inherit}
.news-title a:hover{color:var(--deep-2)}
.news-title{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-excerpt{
  font-size:14px;line-height:1.75;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;padding-top:14px;border-top:1px dashed var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--ph);font-variant-numeric:tabular-nums;
}
.news-meta .link-arrow{font-size:13px}
.empty{
  grid-column:1/-1;border:2px dashed var(--teal-soft);border-radius:20px;
  background:rgba(220,241,236,.45);padding:56px 24px;text-align:center;
}
.empty svg{width:44px;height:44px;margin:0 auto 14px;stroke:var(--teal);fill:none;stroke-width:1.6}
.empty p{font-size:15px;color:var(--muted)}
.empty .btn{margin-top:18px}

/* ---------- 表单 ---------- */
.contact-grid{display:grid;grid-template-columns:.86fr 1.14fr;gap:56px;align-items:start}
.contact-copy h2{font-size:32px;line-height:1.28;font-weight:700;letter-spacing:-.5px}
.contact-copy p{margin-top:16px;font-size:15px;color:var(--muted);max-width:42ch}
.point-list{margin-top:26px;display:grid;gap:14px}
.point-list li{display:flex;gap:12px;font-size:15px;color:var(--muted);line-height:1.75}
.point-list i{
  flex:none;width:22px;height:22px;margin-top:4px;border-radius:7px;background:var(--teal-pale);
  display:grid;place-items:center;font-style:normal;font-size:12px;font-weight:700;color:var(--deep-2);
}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:24px;padding:32px;
  box-shadow:var(--sh-1);
}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px}
.field .req{color:var(--coral);margin-left:2px}
.field input,.field select,.field textarea{
  width:100%;height:48px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-in);
  font-size:15px;font-family:inherit;color:var(--ink);background:#fff;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.field textarea{height:120px;padding:12px 14px;line-height:1.75;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--ph)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--teal);box-shadow:0 0 0 3px rgba(18,160,140,.18);
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);
  background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.field-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:8px}
.form-note{margin-top:14px;font-size:12px;line-height:1.7;color:var(--ph)}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:.62fr 1.38fr;gap:56px;align-items:start}
.faq-side h2{font-size:32px;line-height:1.28;font-weight:700;letter-spacing:-.5px}
.faq-side p{margin-top:16px;font-size:15px;color:var(--muted);max-width:36ch}
.faq-side .btn{margin-top:24px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;margin-bottom:12px;overflow:hidden;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.faq-item:hover{border-color:var(--teal-soft)}
.faq-item.is-open{border-color:var(--teal-soft);box-shadow:var(--sh-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;background:none;border:0;text-align:left;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-q:hover{color:var(--deep-2)}
.faq-ic{
  flex:none;width:24px;height:24px;position:relative;transition:transform .3s var(--ease);
}
.faq-ic::before,.faq-ic::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--teal);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-ic::before{width:14px;height:2px}
.faq-ic::after{width:2px;height:14px}
.faq-item.is-open .faq-ic{transform:rotate(45deg)}
.faq-item.is-open .faq-q{color:var(--deep-2)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s var(--ease)}
.faq-a > div{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--muted)}

/* ---------- CTA & 页脚 ---------- */
.cta-section{padding:0 0 96px}
.cta-band{
  background:var(--grad-brand);border-radius:28px;padding:48px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:0 24px 60px rgba(6,59,53,.22);
}
.cta-band h2{font-size:30px;line-height:1.3;font-weight:700;letter-spacing:-.5px}
.cta-band p{margin-top:12px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.82);max-width:52ch}
.cta-band .btn{flex:none}

.site-footer{background:var(--deep);color:#A9C6C0;padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{box-shadow:none}
.footer-brand b{color:#fff;font-size:17px;font-weight:700;letter-spacing:-.2px}
.footer-about{font-size:14px;line-height:1.9;color:#A9C6C0;max-width:34ch}
.footer-title{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:#A9C6C0}
.footer-links a:hover{color:var(--teal-soft)}
.footer-contact li{font-size:14px;line-height:1.9;margin-bottom:8px;color:#A9C6C0}
.footer-contact b{color:#fff;font-weight:600}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7FA39C;
}
.footer-bottom a{color:#7FA39C}
.footer-bottom a:hover{color:var(--teal-soft)}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .section{padding:72px 0}
  .hero{padding:48px 0 64px}
  .hero-inner{grid-template-columns:1fr;gap:44px}
  .hero-sub{max-width:none}
  .hero-stats{position:static;margin-top:18px;grid-template-columns:repeat(3,1fr);right:auto;bottom:auto}
  .stat{padding:14px}
  .ladder{grid-template-columns:repeat(2,1fr)}
  .ladder-wrap::before{display:none}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
  .trust-item:nth-child(1),.trust-item:nth-child(2){border-bottom:1px solid var(--line)}
  .trust-item:nth-child(3){border-left:0;padding-left:0}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid,.faq-layout{grid-template-columns:1fr;gap:36px}
  .section-title,.contact-copy h2,.faq-side h2{font-size:28px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{width:calc(100% - 32px)}
  .header-top{height:56px}
  .header-top-inner{width:calc(100% - 32px);gap:12px}
  .header-search{display:none}
  .header-actions .btn-ghost{display:none}
  .nav-toggle{display:inline-flex}
  .header-channels{display:none}
  .site-header.menu-open .header-channels{display:block;border-top:1px solid var(--line)}
  .channels-inner{flex-direction:column;overflow:visible;padding:12px 0;gap:6px}
  .channel{width:100%;text-align:center;padding:11px 16px;border-radius:12px;font-size:15px}
  .hero{padding:36px 0 52px}
  .hero h1{font-size:31px}
  .hero-sub{font-size:16px;margin-top:18px}
  .hero-actions{gap:10px}
  .hero-actions .btn{flex:1 1 100%}
  .hero-stats{grid-template-columns:repeat(3,1fr);gap:8px}
  .stat b{font-size:21px}
  .stat span{font-size:11px;white-space:normal}
  .section{padding:48px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px}
  .section-title,.contact-copy h2,.faq-side h2{font-size:24px}
  .ladder{grid-template-columns:1fr}
  .stair-card .stair-desc{min-height:0}
  .compare{display:none}
  .compare-cards{display:grid}
  .promo{flex-direction:column;align-items:flex-start;padding:26px 24px;gap:22px}
  .promo-right{width:100%;justify-content:space-between}
  .count span{min-width:44px;height:44px;font-size:18px}
  .news-grid{grid-template-columns:1fr}
  .form-card{padding:22px}
  .field-2{grid-template-columns:1fr}
  .form-foot{flex-direction:column;align-items:stretch}
  .form-foot .btn{width:100%}
  .cta-band{padding:32px 24px;border-radius:22px}
  .cta-band h2{font-size:23px}
  .cta-band .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding:52px 0 0}
  .footer-bottom{flex-direction:column;align-items:flex-start;font-size:12px}
}
@media (max-width:480px){
  .hero h1{font-size:28px}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .hero-stats .stat:last-child{grid-column:1/-1}
  .trust-grid{grid-template-columns:1fr}
  .trust-item{border-left:0;padding-left:0;border-bottom:1px solid var(--line)}
  .trust-item:last-child{border-bottom:0}
  .brand-text{font-size:15px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --brand-900:#063B35;
  --brand-700:#0B6A5E;
  --brand-500:#12A08C;
  --brand-300:#6ED0BE;
  --brand-100:#DCF1EC;
  --coral:#FF7A59;
  --coral-dark:#E85C3B;
  --amber:#F2B33D;
  --ink:#0E2A26;
  --ink-2:#4A6360;
  --muted:#8AA09B;
  --line:#DDE7E3;
  --bg:#F6F8F5;
  --bg-alt:#ECF4F1;
  --white:#FFFFFF;
  --r-card:22px;
  --r-img:16px;
  --r-pill:999px;
  --r-input:12px;
  --shadow-sm:0 1px 2px rgba(6,59,53,.06),0 8px 24px rgba(6,59,53,.08);
  --shadow-lg:0 16px 40px rgba(6,59,53,.14);
  --container:1200px;
  --grad-brand:linear-gradient(120deg,#063B35 0%,#0B6A5E 45%,#12A08C 100%);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(18,160,140,.28);border-radius:8px}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font-family:inherit}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:72px 0}
.section-tight{padding:48px 0}
.section-title{font-size:30px;line-height:1.28;font-weight:700;letter-spacing:-.5px;color:var(--brand-900)}
.section-sub{margin-top:12px;font-size:15px;color:var(--ink-2);max-width:640px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-700)}
.link-arrow span{transition:transform .2s ease;display:inline-block}
.link-arrow:hover span{transform:translateX(4px)}
.link-arrow:hover{color:var(--brand-500)}

/* ===== 头部 ===== */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s ease,background-color .25s ease}
.site-header.is-scrolled{box-shadow:0 10px 30px rgba(6,59,53,.10);background:rgba(255,255,255,.94);backdrop-filter:saturate(160%) blur(10px)}
.header-top-inner{max-width:var(--container);margin:0 auto;padding:0 24px;min-height:72px;display:flex;align-items:center;gap:22px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.brand-mark{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,#0B6A5E,#12A08C);display:inline-flex;align-items:center;justify-content:center;flex:none}
.brand-mark svg{width:22px;height:22px;display:block}
.brand-text{font-size:18px;font-weight:700;letter-spacing:-.2px;color:var(--brand-900);white-space:nowrap}
.header-search{position:relative;flex:1 1 auto;max-width:340px;margin-left:auto}
.header-search input{width:100%;height:42px;border-radius:var(--r-pill);border:1px solid transparent;background:var(--bg-alt);padding:0 46px 0 18px;font-size:14px;color:var(--ink);outline:none;transition:.2s}
.header-search input::placeholder{color:var(--muted)}
.header-search input:focus{background:#fff;border-color:var(--brand-300);box-shadow:0 0 0 3px rgba(18,160,140,.18)}
.header-search button{position:absolute;right:6px;top:50%;transform:translateY(-50%);width:32px;height:32px;border:0;border-radius:50%;background:var(--brand-500);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background-color .2s ease}
.header-search button:hover{background:var(--brand-700)}
.header-search button svg{width:16px;height:16px;stroke:#fff;fill:none;stroke-width:1.8;stroke-linecap:round}
.header-actions{display:flex;align-items:center;gap:10px;flex:none}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:12px;cursor:pointer;position:relative}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{position:absolute;left:50%;transform:translateX(-50%);width:18px;height:2px;background:var(--brand-700);border-radius:2px;content:"";display:block;transition:.22s}
.nav-toggle span{top:50%;margin-top:-1px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{top:0;transform:translateX(-50%) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{top:0;transform:translateX(-50%) rotate(-45deg)}
.header-channels{border-top:1px solid var(--line);background:#fff}
.channels-inner{display:flex;gap:10px;overflow-x:auto;padding:10px 24px;scrollbar-width:none}
.channels-inner::-webkit-scrollbar{display:none}
.channel{flex:none;padding:8px 18px;border-radius:var(--r-pill);font-size:14px;font-weight:600;color:var(--brand-700);background:var(--bg-alt);border:1px solid var(--line);white-space:nowrap;transition:.2s}
.channel:hover{background:#fff;border-color:var(--brand-300);color:var(--brand-900)}
.channel.is-active{background:var(--brand-500);border-color:var(--brand-500);color:#fff;box-shadow:0 6px 16px rgba(18,160,140,.28)}
.channel.is-active:hover{background:var(--brand-700);border-color:var(--brand-700);color:#fff}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:var(--r-pill);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-primary{background:var(--coral);color:#fff;box-shadow:0 6px 18px rgba(255,122,89,.28)}
.btn-primary:hover{background:var(--coral-dark);transform:translateY(-2px);box-shadow:0 10px 26px rgba(232,92,59,.34)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(232,92,59,.26)}
.btn-ghost{background:#fff;color:var(--brand-700);border-color:var(--brand-300)}
.btn-ghost:hover{background:var(--brand-100);border-color:var(--brand-500)}
.btn-line{background:transparent;color:var(--brand-700);border-color:var(--line)}
.btn-line:hover{border-color:var(--brand-500);background:#fff}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

/* ===== 徽章 / 标签 ===== */
.pill{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--r-pill);font-size:12px;font-weight:600;line-height:1.4}
.pill-brand{background:var(--brand-100);color:var(--brand-700)}
.pill-coral{background:rgba(255,122,89,.14);color:#C64624}
.pill-line{background:#fff;border:1px solid var(--line);color:var(--ink-2)}
.pill-soft{background:var(--bg-alt);color:var(--brand-700)}

/* ===== 面包屑 ===== */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line)}
.crumb-inner{padding:16px 24px;max-width:var(--container);margin:0 auto}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.breadcrumb li{display:flex;align-items:center;gap:8px;min-width:0}
.breadcrumb li+li::before{content:"/";color:var(--line);font-size:13px}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb a:hover{color:var(--brand-500)}
.breadcrumb li[aria-current]{color:var(--ink);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:block}

/* ===== 文章头 ===== */
.article-hero{padding:44px 0 40px;background:linear-gradient(180deg,#ECF4F1 0%,#F6F8F5 100%);border-bottom:1px solid var(--line)}
.article-hero-inner{max-width:820px}
.article-title{font-size:38px;line-height:1.24;font-weight:700;letter-spacing:-.5px;color:var(--brand-900);margin-top:16px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:20px;padding-top:18px;border-top:1px solid rgba(6,59,53,.10);font-size:13px;color:var(--ink-2)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--brand-300)}

/* ===== 正文布局 ===== */
.article-main{padding:48px 0 72px}
.article-layout{display:grid;grid-template-columns:minmax(0,760px) 280px;gap:44px;justify-content:center;align-items:start}
.article-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:36px 38px;box-shadow:var(--shadow-sm)}
.article-body{font-size:16px;line-height:1.9;color:var(--ink)}
.article-body p{margin:0 0 20px;font-size:16px;line-height:1.9}
.article-body h2{font-size:26px;line-height:1.4;font-weight:700;color:var(--brand-900);margin:44px 0 16px;padding-left:14px;border-left:4px solid var(--brand-500)}
.article-body h3{font-size:20px;line-height:1.45;font-weight:700;color:var(--brand-900);margin:30px 0 12px}
.article-body h4{font-size:17px;font-weight:700;color:var(--brand-900);margin:22px 0 10px}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:4px}
.article-body ul li,.article-body ol li{position:relative;padding-left:20px;margin-bottom:8px;line-height:1.9}
.article-body ul li::before{content:"";position:absolute;left:2px;top:12px;width:6px;height:6px;border-radius:50%;background:var(--brand-500)}
.article-body ol{counter-reset:olnum}
.article-body ol li{counter-increment:olnum}
.article-body ol li::before{content:counter(olnum);position:absolute;left:0;top:2px;color:var(--brand-500);font-weight:700;font-size:14px}
.article-body blockquote{margin:24px 0;padding:18px 22px;background:var(--bg-alt);border-left:4px solid var(--brand-300);border-radius:0 14px 14px 0;color:var(--ink-2)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body a{color:var(--brand-700);border-bottom:1px solid var(--brand-300)}
.article-body a:hover{color:var(--brand-500)}
.article-body img{border-radius:var(--r-img);margin:24px auto}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:separate;border-spacing:0;margin:24px 0;font-size:14px;border:1px solid var(--line);border-radius:14px;overflow:hidden}
.article-body th{background:var(--bg-alt);color:var(--brand-900);font-weight:700;text-align:left}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line)}
.article-body tr:last-child td{border-bottom:0}
.article-body tr:hover td{background:#F2F9F7}
.article-body strong{font-weight:700;color:var(--brand-900)}
.empty-note{border:2px dashed var(--brand-300);background:#F7FCFA;border-radius:20px;padding:44px 28px;text-align:center}
.empty-note h2{font-size:22px;border:0;padding:0;margin:0 0 10px}
.empty-note p{color:var(--ink-2);margin:0 auto 20px;max-width:460px}

/* ===== 文末标签 ===== */
.article-foot{margin-top:34px;padding-top:24px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.article-foot .foot-label{font-size:13px;font-weight:700;color:var(--ink-2);margin-right:4px}
.tag-pill{display:inline-flex;align-items:center;padding:6px 14px;border-radius:var(--r-pill);background:var(--bg-alt);color:var(--brand-700);font-size:13px;font-weight:600;border:1px solid transparent;transition:.2s}
.tag-pill:hover{background:#fff;border-color:var(--brand-300);color:var(--brand-900)}

/* ===== 侧栏 ===== */
.article-side{display:flex;flex-direction:column;gap:20px;position:sticky;top:130px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:22px;box-shadow:var(--shadow-sm)}
.side-title{font-size:15px;font-weight:700;color:var(--brand-900);margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-title::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--brand-500);display:inline-block}
.side-list li+li{margin-top:12px;padding-top:12px;border-top:1px dashed var(--line)}
.side-list a{font-size:14px;line-height:1.65;color:var(--ink-2);display:block}
.side-list a:hover{color:var(--brand-500)}
.side-list .side-meta{display:block;font-size:12px;color:var(--muted);margin-top:4px}
.side-cta{background:var(--grad-brand);border:0;color:#fff}
.side-cta .side-title{color:#fff}
.side-cta .side-title::before{background:var(--brand-300)}
.side-cta p{font-size:13.5px;line-height:1.75;color:rgba(255,255,255,.82);margin-bottom:16px}

/* ===== 相关推荐 ===== */
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.rel-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;display:flex;flex-direction:column}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--brand-300)}
.rel-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--bg-alt)}
.rel-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .4s ease}
.rel-card:hover .rel-thumb img{transform:scale(1.04)}
.rel-thumb .pill{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.94);color:var(--brand-700)}
.rel-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-body h3{font-size:17px;line-height:1.5;font-weight:700;color:var(--brand-900);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-body p{font-size:13.5px;line-height:1.75;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-foot{margin-top:auto;font-size:13px;color:var(--muted);display:flex;align-items:center;justify-content:space-between}
.rel-foot .go{color:var(--brand-500);font-weight:700}

/* ===== CTA 条 ===== */
.cta-band{background:var(--grad-brand);border-radius:26px;padding:44px 46px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;border-radius:50%;background:rgba(110,208,190,.18)}
.cta-band h2{font-size:27px;line-height:1.35;font-weight:700;color:#fff;letter-spacing:-.4px;position:relative}
.cta-band p{margin-top:10px;font-size:14.5px;color:rgba(255,255,255,.80);max-width:620px;position:relative}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative}
.cta-actions .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff}

/* ===== 页脚 ===== */
.site-footer{background:var(--brand-900);color:#A9C6C0;padding:64px 0 0;margin-top:72px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.12)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand b{color:#fff;font-size:17px;font-weight:700;letter-spacing:-.2px}
.footer-about{font-size:13.5px;line-height:1.85;color:#A9C6C0;max-width:340px}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.2px}
.footer-links li+li,.footer-contact li+li{margin-top:10px}
.footer-links a{font-size:13.5px;color:#A9C6C0}
.footer-links a:hover{color:var(--brand-300)}
.footer-contact li{font-size:13.5px;line-height:1.7;color:#A9C6C0}
.footer-contact b{color:#fff;font-weight:600}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:22px 0 26px;font-size:12.5px;color:rgba(169,198,192,.78)}
.site-footer .brand-mark{width:34px;height:34px;border-radius:10px}

/* ===== 响应式 ===== */
@media (max-width:1023px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .article-side{position:static;flex-direction:row;flex-wrap:wrap}
  .article-side .side-card{flex:1 1 260px}
  .article-title{font-size:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .header-search{max-width:260px}
}
@media (max-width:900px){
  .header-search{display:none}
  .nav-toggle{display:block}
  .header-channels{display:none}
  .header-channels.is-open{display:block}
  .channels-inner{flex-wrap:wrap;overflow:visible;padding:12px 20px 16px}
  .channel{flex:1 1 auto;text-align:center}
  .header-top-inner{min-height:56px;gap:12px;padding:0 16px}
  .brand-text{font-size:16px}
  .brand-mark{width:34px;height:34px;border-radius:10px}
  .header-actions .btn-ghost{display:none}
}
@media (max-width:767px){
  body{font-size:15px}
  .container{padding:0 18px}
  .crumb-inner{padding:14px 18px}
  .breadcrumb li[aria-current]{max-width:180px}
  .article-hero{padding:30px 0 28px}
  .article-title{font-size:26px;line-height:1.32}
  .article-meta{font-size:12.5px;gap:8px;margin-top:16px;padding-top:14px}
  .article-main{padding:32px 0 48px}
  .article-card{padding:24px 20px;border-radius:18px}
  .article-body h2{font-size:21px;margin:32px 0 12px}
  .article-body h3{font-size:18px}
  .section{padding:48px 0}
  .section-title{font-size:24px}
  .rel-grid{grid-template-columns:minmax(0,1fr)}
  .cta-band{padding:30px 22px;border-radius:20px}
  .cta-band h2{font-size:21px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .site-footer{padding:44px 0 0;margin-top:48px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:480px){
  .brand-text{font-size:15px;white-space:normal;line-height:1.2;max-width:150px}
  .article-title{font-size:23px}
  .article-side{flex-direction:column}
}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
:root{
  --teal-900:#063B35;
  --teal-800:#0B6A5E;
  --teal-500:#12A08C;
  --teal-300:#6ED0BE;
  --teal-100:#DCF1EC;
  --coral:#FF7A59;
  --coral-dark:#E85C3B;
  --amber:#F2B33D;
  --bg:#F6F8F5;
  --bg-alt:#ECF4F1;
  --white:#FFFFFF;
  --ink:#0E2A26;
  --ink-2:#4A6360;
  --ink-3:#8AA09B;
  --line:#DDE7E3;
  --r-lg:24px;
  --r-md:20px;
  --r-sm:16px;
  --r-xs:12px;
  --sh-1:0 1px 2px rgba(6,59,53,.06), 0 8px 24px rgba(6,59,53,.08);
  --sh-2:0 16px 40px rgba(6,59,53,.14);
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--teal-900);letter-spacing:-.5px;line-height:1.25;}
h1{font-size:clamp(30px,4.2vw,50px);line-height:1.18;}
h2{font-size:clamp(23px,2.8vw,32px);}
h3{font-size:20px;letter-spacing:-.2px;line-height:1.4;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;display:block;border-radius:var(--r-sm);}
a{color:var(--teal-800);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--teal-500);}
button,input,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:3px solid rgba(18,160,140,.45);outline-offset:2px;}
section[id]{scroll-margin-top:150px;}

/* ============ 容器与板块 ============ */
.container{width:100%;max-width:1200px;margin-inline:auto;padding-inline:24px;}
.section{padding-block:88px;}
.section-alt{background:var(--bg-alt);}
.section-head{max-width:740px;margin-bottom:40px;}
.section-head h2{margin-bottom:14px;}
.section-head p{color:var(--ink-2);font-size:16px;}

/* ============ 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:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-primary{background:var(--coral);color:#fff;box-shadow:0 10px 24px rgba(255,122,89,.28);}
.btn-primary:hover{background:var(--coral-dark);color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(255,122,89,.34);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(255,122,89,.28);}
.btn-outline{background:#fff;color:var(--teal-800);border-color:var(--teal-300);}
.btn-outline:hover{background:var(--teal-100);border-color:var(--teal-500);color:var(--teal-800);}
.btn-ghost{background:transparent;color:var(--teal-800);border-color:var(--line);}
.btn-ghost:hover{background:var(--bg-alt);border-color:var(--teal-300);color:var(--teal-800);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.btn-outline-light:hover{background:rgba(255,255,255,.14);border-color:#fff;color:#fff;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease),background-color .25s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  box-shadow:0 8px 24px rgba(6,59,53,.10);
}
.header-top-inner{
  max-width:1200px;margin-inline:auto;padding-inline:24px;
  height:72px;display:flex;align-items:center;gap:24px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(135deg,var(--teal-800),var(--teal-500));
  display:grid;place-items:center;flex:0 0 auto;
}
.brand-mark svg{width:22px;height:22px;}
.brand-text{font-size:17px;font-weight:700;color:var(--teal-900);letter-spacing:-.3px;white-space:nowrap;}

.header-search{position:relative;flex:1 1 auto;max-width:420px;display:flex;align-items:center;}
.header-search input{
  width:100%;height:40px;border-radius:999px;
  border:1px solid transparent;background:var(--bg-alt);
  padding:0 44px 0 18px;font-size:14px;color:var(--ink);
  transition:background-color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.header-search input::placeholder{color:var(--ink-3);}
.header-search input:focus{outline:none;background:#fff;border-color:var(--teal-300);box-shadow:0 0 0 3px rgba(18,160,140,.18);}
.header-search button{
  position:absolute;right:5px;width:30px;height:30px;border:none;border-radius:50%;
  background:transparent;display:grid;place-items:center;cursor:pointer;
  transition:background-color .2s var(--ease);
}
.header-search button:hover{background:var(--teal-100);}
.header-search button svg{width:16px;height:16px;fill:none;stroke:var(--ink-3);stroke-width:1.8;stroke-linecap:round;}
.header-search button:hover svg{stroke:var(--teal-800);}

.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex:0 0 auto;}

.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;cursor:pointer;
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--teal-900);border-radius:2px;position:relative;transition:background-color .2s var(--ease);}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--teal-900);
  border-radius:2px;transition:transform .2s var(--ease),top .2s var(--ease);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{top:0;transform:rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg);}

.header-channels{border-top:1px solid var(--line);}
.channels-inner{display:flex;gap:8px;overflow-x:auto;padding-block:10px;scrollbar-width:none;}
.channels-inner::-webkit-scrollbar{display:none;}
.channel{
  flex:0 0 auto;padding:8px 18px;border-radius:999px;
  font-size:14px;font-weight:500;color:var(--ink-2);
  border:1px solid var(--line);background:#fff;
  transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease);
}
.channel:hover{color:var(--teal-800);background:var(--teal-100);border-color:var(--teal-300);}
.channel.is-active{background:var(--teal-500);color:#fff;border-color:var(--teal-500);box-shadow:0 6px 16px rgba(18,160,140,.26);}
.channel.is-active:hover{background:var(--teal-800);border-color:var(--teal-800);color:#fff;}

/* ============ 分类页首屏 ============ */
.page-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(120deg,#063B35 0%,#0B6A5E 45%,#12A08C 100%);
  color:#fff;padding:64px 0 60px;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  opacity:.18;mix-blend-mode:luminosity;pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.7);margin-bottom:22px;}
.breadcrumb a{color:rgba(255,255,255,.86);}
.breadcrumb a:hover{color:#fff;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);
  font-size:13px;letter-spacing:.4px;color:#fff;margin-bottom:18px;
}
.page-hero h1{color:#fff;max-width:840px;}
.hero-lead{max-width:700px;margin-top:20px;font-size:17px;line-height:1.85;color:rgba(255,255,255,.86);}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px;}
.hero-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:42px;max-width:760px;}
.hero-stats li{
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  border-radius:var(--r-sm);padding:16px 18px;
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.hero-stats b{
  display:block;font-size:26px;font-weight:700;color:var(--amber);
  font-variant-numeric:tabular-nums;letter-spacing:-.5px;line-height:1.3;
}
.hero-stats span{font-size:13px;color:rgba(255,255,255,.8);}

/* ============ 导语区 ============ */
.intro-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:start;}
.intro-grid h2{margin-bottom:18px;}
.lead-text{font-size:17px;color:var(--ink-2);margin-bottom:16px;}
.intro-body{color:var(--ink-2);}
.intro-points{display:grid;gap:14px;}
.intro-points li{
  display:flex;gap:14px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-sm);padding:20px 22px;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease),transform .25s var(--ease);
}
.intro-points li:hover{border-color:var(--teal-300);box-shadow:var(--sh-1);transform:translateY(-2px);}
.point-dot{
  flex:0 0 auto;width:10px;height:10px;border-radius:50%;
  background:var(--coral);margin-top:10px;box-shadow:0 0 0 4px rgba(255,122,89,.16);
}
.intro-points b{display:block;color:var(--teal-900);font-size:15px;margin-bottom:4px;}
.intro-points p{font-size:14px;color:var(--ink-2);line-height:1.7;}

/* ============ 方案长条卡 ============ */
.plan-row{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
  padding:36px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.plan-row + .plan-row{margin-top:24px;}
.plan-row:hover{border-color:var(--teal-300);box-shadow:var(--sh-1);}
.plan-row.is-reverse .plan-media{order:-1;}
.plan-index{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:2px;
  color:var(--teal-800);background:var(--teal-100);border-radius:999px;
  padding:4px 12px;margin-bottom:14px;font-variant-numeric:tabular-nums;
}
.plan-copy h3{margin-bottom:12px;}
.plan-copy > p{color:var(--ink-2);}
.tick-list{margin-top:18px;display:grid;gap:10px;}
.tick-list li{position:relative;padding-left:26px;font-size:15px;color:var(--ink-2);line-height:1.75;}
.tick-list li::before{
  content:"";position:absolute;left:0;top:9px;width:14px;height:7px;
  border-left:2px solid var(--teal-500);border-bottom:2px solid var(--teal-500);
  transform:rotate(-45deg);border-radius:1px;
}
.plan-media img{width:100%;height:320px;object-fit:cover;border-radius:var(--r-sm);}
.link-arrow{display:inline-flex;align-items:center;gap:8px;margin-top:22px;font-size:15px;font-weight:600;color:var(--teal-800);}
.link-arrow span{transition:transform .2s var(--ease);}
.link-arrow:hover span{transform:translateX(4px);}

/* ============ 适用场景 ============ */
.scenario-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.scenario-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px 24px;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.scenario-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--teal-300);}
.scenario-tag{display:inline-block;font-size:12px;color:var(--teal-800);background:var(--teal-100);border-radius:999px;padding:2px 10px;margin-bottom:12px;}
.scenario-card h3{font-size:17px;margin-bottom:10px;}
.scenario-card p{font-size:14px;color:var(--ink-2);line-height:1.75;}

/* ============ 流程 ============ */
.step-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.step-grid li{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);padding:26px 24px;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease),transform .25s var(--ease);
}
.step-grid li:hover{border-color:var(--teal-300);box-shadow:var(--sh-1);transform:translateY(-3px);}
.step-grid li::after{
  content:"";position:absolute;top:44px;right:-13px;width:8px;height:8px;
  border-top:2px solid var(--teal-300);border-right:2px solid var(--teal-300);
  transform:rotate(45deg);
}
.step-grid li:last-child::after{display:none;}
.step-num{
  display:inline-flex;width:38px;height:38px;border-radius:50%;
  align-items:center;justify-content:center;background:var(--teal-900);color:#fff;
  font-size:14px;font-weight:700;margin-bottom:14px;font-variant-numeric:tabular-nums;
}
.step-grid h3{font-size:17px;margin-bottom:8px;}
.step-grid p{font-size:14px;color:var(--ink-2);line-height:1.75;}

/* ============ 常见疑问 ============ */
.faq-wrap{display:grid;grid-template-columns:.72fr 1.4fr;gap:48px;align-items:start;}
.faq-wrap h2{margin-bottom:14px;}
.faq-note{color:var(--ink-2);font-size:15px;margin-bottom:20px;}
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);
  padding:0 22px;transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.faq-item:hover{border-color:var(--teal-300);}
.faq-item[open]{border-color:var(--teal-300);box-shadow:var(--sh-1);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 0;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
  font-size:16px;font-weight:600;color:var(--teal-900);
  transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-size:20px;color:var(--teal-500);line-height:1;
  flex:0 0 auto;transition:transform .25s var(--ease);
}
.faq-item[open] summary{color:var(--teal-500);}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item p{padding-bottom:20px;color:var(--ink-2);font-size:15px;line-height:1.8;}

/* ============ 收口 CTA ============ */
.cta-band{
  background:linear-gradient(120deg,#063B35 0%,#0B6A5E 55%,#12A08C 100%);
  border-radius:var(--r-lg);padding:48px;
  display:grid;grid-template-columns:1.4fr auto;gap:32px;align-items:center;
  color:#fff;box-shadow:var(--sh-1);
}
.cta-band h2{color:#fff;margin-bottom:12px;}
.cta-band p{color:rgba(255,255,255,.84);font-size:15px;max-width:620px;}
.cta-band .btn-wrap{display:flex;flex-wrap:wrap;gap:12px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--teal-900);color:#A9C6C0;padding-top:72px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px;}
.footer-brand b{color:#fff;font-size:16px;letter-spacing:-.2px;}
.footer-about{font-size:14px;line-height:1.8;color:#A9C6C0;max-width:340px;}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-links li + li,.footer-contact li + li{margin-top:10px;}
.footer-links a{font-size:14px;color:#A9C6C0;}
.footer-links a:hover{color:var(--teal-300);}
.footer-contact li{font-size:14px;color:#A9C6C0;line-height:1.7;}
.footer-contact b{color:#CFE3DE;font-weight:600;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:22px 0 30px;display:flex;flex-wrap:wrap;justify-content:space-between;
  gap:10px;font-size:13px;color:#8FB0AA;
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .header-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-channels{display:none;}
  .header-channels.is-open{display:block;}
  .channels-inner{flex-wrap:wrap;overflow:visible;padding-block:12px;}
  .header-top-inner{height:64px;gap:16px;}

  .section{padding-block:64px;}
  .page-hero{padding:48px 0 44px;}
  .intro-grid{grid-template-columns:1fr;gap:32px;}
  .plan-row{grid-template-columns:1fr;gap:24px;padding:28px;}
  .plan-row.is-reverse .plan-media{order:0;}
  .plan-media img{height:260px;}
  .scenario-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .step-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .step-grid li:nth-child(2)::after{display:none;}
  .faq-wrap{grid-template-columns:1fr;gap:28px;}
  .cta-band{grid-template-columns:1fr;padding:36px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
}

@media (max-width:767px){
  .section{padding-block:48px;}
  .container{padding-inline:18px;}
  .header-top-inner{padding-inline:18px;height:56px;}
  .brand-text{font-size:15px;}
  .header-actions .btn-ghost{display:none;}
  .hero-lead{font-size:15.5px;}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));margin-top:32px;}
  .hero-stats b{font-size:22px;}
  .hero-actions{flex-direction:column;}
  .hero-actions .btn{width:100%;}
  .scenario-grid{grid-template-columns:1fr;}
  .step-grid{grid-template-columns:1fr;}
  .step-grid li::after{display:none;}
  .plan-media img{height:210px;}
  .cta-band{padding:28px;gap:20px;}
  .cta-band .btn-wrap{width:100%;}
  .cta-band .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

@media (max-width:520px){
  .hero-stats{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  h1{font-size:28px;}
}

/* roulang page: category2 */
:root{
  --brand-900:#063B35;
  --brand-700:#0B6A5E;
  --brand-500:#12A08C;
  --brand-300:#6ED0BE;
  --brand-100:#DCF1EC;
  --coral:#FF7A59;
  --coral-dark:#E85C3B;
  --amber:#F2B33D;
  --ink:#0E2A26;
  --sub:#4A6360;
  --muted:#8AA09B;
  --line:#DDE7E3;
  --bg:#F6F8F5;
  --bg-alt:#ECF4F1;
  --white:#FFFFFF;
  --radius-xl:26px;
  --radius-lg:24px;
  --radius-md:20px;
  --radius-sm:12px;
  --shadow-sm:0 1px 2px rgba(6,59,53,.06), 0 8px 24px rgba(6,59,53,.08);
  --shadow-lg:0 16px 40px rgba(6,59,53,.14);
  --focus-ring:0 0 0 3px rgba(18,160,140,.28);
  --ease:.25s ease;
  --font-base:"PingFang SC","Hiragino Sans GB","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-base);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:16px;}
a{color:var(--brand-700);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--brand-500);}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:none;box-shadow:var(--focus-ring);border-radius:8px;}
h1,h2,h3,h4,h5,p,ul,ol,figure{margin:0;padding:0;}
h1,h2,h3,h4{font-family:var(--font-base);color:var(--ink);font-weight:700;letter-spacing:-.5px;line-height:1.25;}
h1{font-size:44px;line-height:1.18;}
h2{font-size:32px;line-height:1.28;}
h3{font-size:22px;line-height:1.4;font-weight:600;letter-spacing:0;}
ul,ol{list-style:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;}
input,textarea,select{font-family:inherit;font-size:16px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}
.grid-x{margin-left:-12px;margin-right:-12px;}
.grid-x>.cell{padding-left:12px;padding-right:12px;}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:0;
  border:1px solid transparent;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--coral);color:#fff;box-shadow:0 8px 20px rgba(232,92,59,.24);}
.btn-primary:hover{background:var(--coral-dark);color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px rgba(232,92,59,.30);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(232,92,59,.22);}
.btn-ghost{background:#fff;color:var(--brand-700);border-color:var(--brand-300);}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-700);border-color:var(--brand-500);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-solid{background:var(--brand-700);color:#fff;}
.btn-solid:hover{background:var(--brand-900);color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px rgba(6,59,53,.22);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--brand-700);}
.link-arrow svg{width:16px;height:16px;transition:transform var(--ease);}
.link-arrow:hover svg{transform:translateX(4px);}

/* ===== 站点头部 ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease),background var(--ease);
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(160%) blur(8px);
  box-shadow:0 6px 22px rgba(6,59,53,.10);
}
.header-top-inner{
  max-width:1200px;margin:0 auto;padding:0 24px;
  min-height:72px;display:flex;align-items:center;gap:24px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand-700),var(--brand-500));
  box-shadow:0 6px 16px rgba(11,106,94,.28);
}
.brand-mark svg{width:22px;height:22px;}
.brand-text{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:-.3px;}
.header-search{
  flex:1 1 auto;max-width:400px;display:flex;align-items:center;
  height:40px;border-radius:999px;background:var(--bg-alt);
  border:1px solid transparent;padding:0 6px 0 16px;
  transition:background var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.header-search:focus-within{background:#fff;border-color:var(--brand-300);box-shadow:var(--focus-ring);}
.header-search input{
  flex:1;border:none;background:transparent;height:36px;font-size:14px;color:var(--ink);
}
.header-search input::placeholder{color:var(--muted);}
.header-search input:focus{outline:none;}
.header-search button{
  width:32px;height:32px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-500);color:#fff;transition:background var(--ease),transform var(--ease);
}
.header-search button:hover{background:var(--brand-700);}
.header-search button svg{width:16px;height:16px;fill:none;stroke:#fff;stroke-width:2;stroke-linecap:round;}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;content:"";
  position:relative;transition:transform var(--ease),background var(--ease);
}
.nav-toggle span::before{position:absolute;top:-6px;}
.nav-toggle span::after{position:absolute;top:6px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg);}

.header-channels{border-top:1px solid var(--line);background:#fff;}
.channels-inner{
  display:flex;align-items:center;gap:8px;
  overflow-x:auto;padding-top:10px;padding-bottom:12px;
  scrollbar-width:none;
}
.channels-inner::-webkit-scrollbar{display:none;}
.channel{
  flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;
  min-height:38px;padding:0 18px;border-radius:999px;
  font-size:14px;font-weight:600;color:var(--brand-700);
  background:var(--bg-alt);border:1px solid transparent;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease);
}
.channel:hover{background:var(--brand-100);border-color:var(--brand-300);color:var(--brand-900);transform:translateY(-1px);}
.channel.is-active{background:var(--brand-500);color:#fff;box-shadow:0 8px 18px rgba(18,160,140,.26);}
.channel.is-active:hover{background:var(--brand-700);color:#fff;}

/* ===== 分类 Hero ===== */
.category-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(120deg,#063B35 0%,#0B6A5E 45%,#12A08C 100%);
  color:#fff;
}
.category-hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  opacity:.26;
}
.category-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(6,59,53,.94) 0%,rgba(11,106,94,.82) 52%,rgba(18,160,140,.62) 100%);
}
.category-hero .container{position:relative;z-index:2;}
.hero-inner{padding:64px 0 68px;max-width:820px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:#A9C6C0;margin-bottom:22px;}
.breadcrumb a{color:#CFE7E1;}
.breadcrumb a:hover{color:#fff;}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"/";color:rgba(255,255,255,.4);}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);
  color:#EAF7F4;margin-bottom:20px;
}
.hero-tag i{width:6px;height:6px;border-radius:50%;background:var(--amber);display:inline-block;}
.category-hero h1{color:#fff;font-size:44px;letter-spacing:-.6px;max-width:16em;}
.hero-lead{
  margin-top:22px;font-size:17px;line-height:1.85;color:rgba(255,255,255,.88);max-width:44em;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;}
.hero-actions .btn-ghost{background:rgba(255,255,255,.10);color:#fff;border-color:rgba(255,255,255,.46);}
.hero-actions .btn-ghost:hover{background:rgba(255,255,255,.20);color:#fff;border-color:#fff;}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,1fr);gap:14px;
  margin-top:40px;max-width:640px;
}
.hero-stat{
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.20);
  border-radius:16px;padding:16px 18px;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.06);
}
.hero-stat b{display:block;font-size:30px;line-height:1.1;color:#fff;letter-spacing:-1px;}
.hero-stat span{font-size:13px;color:rgba(255,255,255,.78);}

/* ===== 通用板块 ===== */
.section{padding:88px 0;}
.section-alt{background:var(--bg-alt);}
.section-head{max-width:720px;margin-bottom:40px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:1px;
  color:var(--brand-500);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--brand-300);border-radius:2px;}
.section-head h2{font-size:32px;}
.section-head p{margin-top:16px;color:var(--sub);font-size:16px;line-height:1.85;}

/* 导语区 */
.intro-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.intro-copy p{color:var(--sub);margin-top:18px;line-height:1.9;}
.intro-copy p+p{margin-top:14px;}
.intro-figure{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);border:1px solid var(--line);}
.intro-figure img{width:100%;height:100%;object-fit:cover;border-radius:0;aspect-ratio:4/3;}
.intro-figure figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:18px 22px;font-size:13px;color:#EAF7F4;
  background:linear-gradient(180deg,rgba(6,59,53,0) 0%,rgba(6,59,53,.86) 100%);
}

/* 准备要点卡 */
.prep-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.prep-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:26px 24px;transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  display:flex;flex-direction:column;gap:12px;
}
.prep-card:hover{transform:translateY(-4px);border-color:var(--brand-300);box-shadow:var(--shadow-lg);}
.prep-icon{
  width:44px;height:44px;border-radius:14px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-100);color:var(--brand-700);
}
.prep-icon svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.prep-card h3{font-size:18px;font-weight:600;}
.prep-card p{font-size:14.5px;color:var(--sub);line-height:1.8;}

/* 时间线 */
.timeline{position:relative;margin-top:8px;}
.timeline::before{
  content:"";position:absolute;top:6px;bottom:6px;left:50%;
  width:2px;transform:translateX(-50%);
  background:linear-gradient(180deg,var(--brand-300) 0%,var(--brand-500) 55%,rgba(18,160,140,.15) 100%);
}
.timeline-item{
  position:relative;display:grid;grid-template-columns:1fr 1fr;column-gap:72px;
  margin-bottom:36px;
}
.timeline-item:last-child{margin-bottom:0;}
.tl-dot{
  position:absolute;left:50%;top:34px;transform:translate(-50%,-50%);
  width:16px;height:16px;border-radius:50%;background:#fff;
  border:3px solid var(--brand-500);box-shadow:0 0 0 6px rgba(18,160,140,.14);z-index:2;
}
.tl-side{position:relative;display:flex;flex-direction:column;justify-content:flex-start;padding-top:18px;}
.tl-num{font-size:56px;font-weight:700;line-height:1;color:rgba(18,160,140,.18);letter-spacing:-2px;}
.tl-side span{font-size:14px;font-weight:600;color:var(--brand-700);margin-top:6px;}
.tl-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:26px 28px;box-shadow:var(--shadow-sm);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.tl-card:hover{transform:translateY(-3px);border-color:var(--brand-300);box-shadow:var(--shadow-lg);}
.tl-card h3{font-size:19px;margin-bottom:10px;}
.tl-card p{font-size:15px;color:var(--sub);line-height:1.85;}
.tl-card ul{margin-top:14px;display:flex;flex-direction:column;gap:8px;}
.tl-card li{
  position:relative;padding-left:20px;font-size:14.5px;color:var(--sub);line-height:1.75;
}
.tl-card li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;
  background:var(--brand-300);
}
.timeline-item:nth-child(odd) .tl-side{grid-column:1;text-align:right;}
.timeline-item:nth-child(odd) .tl-card{grid-column:2;}
.timeline-item:nth-child(even) .tl-card{grid-column:1;grid-row:1;}
.timeline-item:nth-child(even) .tl-side{grid-column:2;grid-row:1;text-align:left;}

/* 提示对照 */
.check-list{display:flex;flex-direction:column;gap:14px;}
.check-row{
  display:grid;grid-template-columns:1fr 1.25fr;gap:28px;
  background:#fff;border:1px solid var(--line);border-left:4px solid var(--brand-300);
  border-radius:16px;padding:22px 26px;
  transition:border-color var(--ease),box-shadow var(--ease),transform var(--ease);
}
.check-row:hover{border-left-color:var(--coral);box-shadow:var(--shadow-sm);transform:translateY(-2px);}
.check-row dt{font-size:15.5px;font-weight:600;color:var(--ink);}
.check-row dt em{display:block;font-style:normal;font-size:13px;color:var(--muted);font-weight:400;margin-top:6px;}
.check-row dd{font-size:15px;color:var(--sub);line-height:1.85;}
.check-row dd b{color:var(--brand-700);font-weight:600;}

/* FAQ */
.faq-wrap{display:grid;grid-template-columns:.85fr 1.6fr;gap:56px;align-items:start;}
.faq-side h2{font-size:30px;}
.faq-side p{margin-top:16px;color:var(--sub);font-size:15px;line-height:1.85;}
.faq-side .btn{margin-top:26px;}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.faq-item.is-open{border-color:var(--brand-300);box-shadow:var(--shadow-sm);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;text-align:left;font-size:16px;font-weight:600;color:var(--ink);
  transition:color var(--ease);
}
.faq-q:hover{color:var(--brand-700);}
.faq-item.is-open .faq-q{color:var(--brand-700);}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-100);color:var(--brand-700);font-size:16px;font-weight:700;line-height:1;
  transition:transform var(--ease),background var(--ease),color var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--brand-500);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease;}
.faq-a p{padding:0 24px 20px;font-size:15px;color:var(--sub);line-height:1.9;}

/* CTA */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  background:linear-gradient(120deg,var(--brand-900) 0%,var(--brand-700) 52%,var(--brand-500) 100%);
  color:#fff;padding:48px 52px;
  display:grid;grid-template-columns:1.4fr auto;gap:36px;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(110,208,190,.32) 0%,rgba(110,208,190,0) 70%);
}
.cta-band h2{position:relative;color:#fff;font-size:30px;letter-spacing:-.4px;}
.cta-band p{position:relative;margin-top:14px;color:rgba(255,255,255,.84);font-size:15.5px;max-width:44em;line-height:1.85;}
.cta-actions{position:relative;display:flex;flex-wrap:wrap;gap:12px;}
.cta-actions .btn-ghost{background:rgba(255,255,255,.10);color:#fff;border-color:rgba(255,255,255,.44);}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.20);color:#fff;border-color:#fff;}

/* 页脚 */
.site-footer{background:var(--brand-900);color:#A9C6C0;padding:72px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px;padding-bottom:52px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.footer-brand b{color:#fff;font-size:17px;font-weight:700;}
.footer-brand .brand-mark{background:linear-gradient(135deg,rgba(110,208,190,.55),rgba(18,160,140,.85));}
.footer-about{font-size:14px;line-height:1.9;color:#9FBDB7;max-width:32em;}
.footer-title{color:#fff;font-size:14px;font-weight:700;letter-spacing:.5px;margin-bottom:18px;}
.footer-links,.footer-contact{display:flex;flex-direction:column;gap:12px;font-size:14px;}
.footer-links a{color:#A9C6C0;}
.footer-links a:hover{color:var(--brand-300);}
.footer-contact li{color:#9FBDB7;line-height:1.7;}
.footer-contact b{color:#CFE7E1;font-weight:600;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 26px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#8FB0AA;
}

/* ===== 响应式 ===== */
@media (max-width:1023px){
  h1{font-size:36px;}
  .category-hero h1{font-size:36px;}
  .section{padding:68px 0;}
  .intro-grid{grid-template-columns:1fr;gap:36px;}
  .prep-grid{grid-template-columns:repeat(2,1fr);}
  .faq-wrap{grid-template-columns:1fr;gap:32px;}
  .cta-band{grid-template-columns:1fr;padding:40px 34px;text-align:left;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .check-row{grid-template-columns:1fr;gap:12px;}
}
@media (max-width:900px){
  .header-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions{margin-left:auto;}
  .header-actions .btn-ghost{display:none;}
  .header-channels{display:none;}
  .header-channels.is-open{display:block;}
  .channels-inner{flex-direction:column;overflow:visible;align-items:stretch;padding-top:6px;padding-bottom:16px;gap:8px;}
  .channel{width:100%;min-height:44px;}
  .header-top-inner{min-height:60px;gap:14px;padding:0 18px;}
  .brand-text{font-size:16px;}
}
@media (max-width:767px){
  .section{padding:56px 0;}
  h2,.section-head h2{font-size:26px;}
  .category-hero h1{font-size:30px;}
  .hero-inner{padding:44px 0 48px;}
  .hero-lead{font-size:15.5px;}
  .hero-stats{grid-template-columns:1fr 1fr;gap:10px;}
  .hero-stat b{font-size:24px;}
  .prep-grid{grid-template-columns:1fr;}
  .timeline::before{left:14px;}
  .timeline-item{grid-template-columns:1fr;margin-bottom:24px;padding-left:44px;}
  .timeline-item:nth-child(odd) .tl-side,
  .timeline-item:nth-child(even) .tl-side{grid-column:1;grid-row:auto;text-align:left;padding-top:0;margin-bottom:10px;flex-direction:row;align-items:baseline;gap:10px;}
  .timeline-item:nth-child(odd) .tl-card,
  .timeline-item:nth-child(even) .tl-card{grid-column:1;grid-row:auto;}
  .tl-num{font-size:34px;}
  .tl-dot{left:14px;top:26px;}
  .tl-card{padding:22px 20px;}
  .cta-band{padding:32px 24px;}
  .cta-band h2{font-size:24px;}
  .cta-actions .btn{width:100%;}
  .faq-q{padding:18px 18px;font-size:15px;}
  .faq-a p{padding:0 18px 18px;}
  .check-row{padding:20px 18px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .site-footer{padding-top:52px;}
}
@media (max-width:480px){
  .container{padding-left:16px;padding-right:16px;}
  .category-hero h1{font-size:26px;}
  .hero-stats{grid-template-columns:1fr 1fr;}
  .hero-actions .btn{width:100%;}
  .btn{font-size:14px;}
}

/* roulang page: category3 */
:root{
  --ink-900:#063B35;
  --ink-700:#0B6A5E;
  --brand:#12A08C;
  --brand-soft:#6ED0BE;
  --brand-pale:#DCF1EC;
  --coral:#FF7A59;
  --coral-dark:#E85C3B;
  --amber:#F2B33D;
  --bg:#F6F8F5;
  --bg-alt:#ECF4F1;
  --white:#FFFFFF;
  --text:#0E2A26;
  --text-2:#4A6360;
  --text-3:#8AA09B;
  --line:#DDE7E3;
  --radius-card:22px;
  --radius-img:16px;
  --radius-input:12px;
  --shadow-rest:0 1px 2px rgba(6,59,53,.06),0 8px 24px rgba(6,59,53,.08);
  --shadow-hover:0 16px 40px rgba(6,59,53,.14);
  --focus-ring:0 0 0 3px rgba(18,160,140,.28);
  --grad-brand:linear-gradient(120deg,#063B35 0%,#0B6A5E 45%,#12A08C 100%);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
a:hover{color:var(--ink-700);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:none;box-shadow:var(--focus-ring);border-radius:8px;}

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

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:12px 26px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-sm{min-height:40px;padding:9px 18px;font-size:14px;}
.btn-primary{background:var(--coral);color:#fff;border-color:var(--coral);box-shadow:0 6px 18px rgba(255,122,89,.28);}
.btn-primary:hover{background:var(--coral-dark);border-color:var(--coral-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(232,92,59,.34);}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(232,92,59,.24);}
.btn-ghost{background:#fff;color:var(--ink-700);border-color:var(--brand-soft);}
.btn-ghost:hover{background:var(--brand-pale);border-color:var(--brand);color:var(--ink-900);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-solid{background:var(--ink-900);color:#fff;border-color:var(--ink-900);}
.btn-solid:hover{background:var(--ink-700);border-color:var(--ink-700);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.btn-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--brand);}
.btn-link i{transition:transform .2s ease;}
.btn-link:hover i{transform:translateX(4px);}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background-color .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 26px rgba(6,59,53,.10);background:rgba(255,255,255,.92);backdrop-filter:blur(10px);}
.header-top-inner{
  max-width:var(--container);margin:0 auto;padding:0 24px;
  min-height:72px;display:flex;align-items:center;gap:24px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--grad-brand);box-shadow:0 6px 16px rgba(6,59,53,.22);
}
.brand-mark svg{width:22px;height:22px;}
.brand-text{font-size:19px;font-weight:700;letter-spacing:-.3px;color:var(--ink-900);}
.header-search{
  flex:1;max-width:360px;position:relative;display:flex;align-items:center;
  background:var(--bg-alt);border:1px solid transparent;border-radius:999px;height:40px;padding:0 6px 0 16px;
  transition:background-color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.header-search:focus-within{background:#fff;border-color:var(--brand-soft);box-shadow:var(--focus-ring);}
.header-search input{
  flex:1;border:none;background:transparent;height:38px;font-size:14px;color:var(--text);
  font-family:inherit;min-width:0;
}
.header-search input::placeholder{color:var(--text-3);}
.header-search input:focus{outline:none;}
.header-search button{
  width:32px;height:32px;border-radius:50%;border:none;background:var(--brand);cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;transition:background-color .2s ease;
}
.header-search button:hover{background:var(--ink-700);}
.header-search button svg{width:15px;height:15px;fill:none;stroke:#fff;stroke-width:2;stroke-linecap:round;}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;
  cursor:pointer;position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;transform:translateX(-50%);width:18px;height:2px;background:var(--ink-900);
  border-radius:2px;content:"";transition:transform .2s ease,opacity .2s ease;
}
.nav-toggle span{top:20px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateX(-50%) rotate(45deg);top:0;}
.nav-toggle[aria-expanded="true"] span::after{transform:translateX(-50%) rotate(-45deg);top:0;}

.header-channels{
  border-top:1px solid var(--line);
  background:rgba(255,255,255,.9);
}
.channels-inner{
  display:flex;gap:10px;overflow-x:auto;padding:10px 24px;
  scrollbar-width:none;-ms-overflow-style:none;
}
.channels-inner::-webkit-scrollbar{display:none;}
.channel{
  flex:0 0 auto;padding:8px 18px;border-radius:999px;font-size:14px;font-weight:600;
  color:var(--ink-700);background:#fff;border:1px solid var(--line);
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.channel:hover{background:var(--brand-pale);border-color:var(--brand-soft);color:var(--ink-900);transform:translateY(-1px);}
.channel:active{transform:translateY(0);}
.channel.is-active{background:var(--brand);border-color:var(--brand);color:#fff;}
.channel.is-active:hover{background:var(--ink-700);border-color:var(--ink-700);color:#fff;}

/* ---------- Section base ---------- */
.section{padding:96px 0;}
.section-alt{background:var(--bg-alt);}
.section-head{margin-bottom:40px;max-width:760px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--ink-700);
  background:var(--brand-pale);padding:6px 14px;border-radius:999px;margin-bottom:16px;
}
h2.section-title{font-size:32px;line-height:1.25;font-weight:700;letter-spacing:-.5px;color:var(--ink-900);}
.section-sub{margin-top:14px;font-size:16px;color:var(--text-2);line-height:1.85;}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--grad-brand);
  color:#fff;
  padding:80px 0 72px;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  opacity:.24;mix-blend-mode:luminosity;
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.76);margin-bottom:22px;}
.breadcrumb a{color:rgba(255,255,255,.9);}
.breadcrumb a:hover{color:#fff;text-decoration:underline;}
.breadcrumb span.sep{opacity:.55;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);
  color:#fff;font-size:13px;font-weight:600;padding:6px 14px;border-radius:999px;margin-bottom:20px;
}
.page-hero h1{
  font-size:48px;line-height:1.18;font-weight:700;letter-spacing:-.5px;max-width:900px;color:#fff;
}
.page-hero .hero-lead{
  margin-top:20px;max-width:720px;font-size:17px;line-height:1.9;color:rgba(255,255,255,.88);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px;}
.page-hero .btn-ghost{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.5);color:#fff;}
.page-hero .btn-ghost:hover{background:rgba(255,255,255,.2);border-color:#fff;color:#fff;}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:32px;margin-top:44px;padding-top:28px;
  border-top:1px solid rgba(255,255,255,.2);
}
.hero-meta-item b{display:block;font-size:32px;font-weight:700;letter-spacing:-1px;line-height:1.1;color:var(--amber);}
.hero-meta-item span{display:block;margin-top:6px;font-size:13px;color:rgba(255,255,255,.78);}

/* ---------- Intro ---------- */
.intro-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;}
.intro-copy p{font-size:16px;line-height:1.95;color:var(--text-2);}
.intro-copy p + p{margin-top:16px;}
.intro-copy strong{color:var(--ink-900);}
.intro-figure{position:relative;border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-rest);}
.intro-figure img{width:100%;height:340px;object-fit:cover;border-radius:0;}
.intro-figure figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:16px 20px;font-size:13px;color:#fff;
  background:linear-gradient(0deg,rgba(6,59,53,.86),rgba(6,59,53,0));
}
.point-list{margin-top:26px;display:grid;gap:12px;}
.point-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--text-2);}
.point-list li i{color:var(--brand);margin-top:6px;font-size:13px;}

/* ---------- Plan cards ---------- */
.plan-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch;
  padding-top:16px;
}
.plan-card{
  position:relative;display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:0 0 28px;overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.plan-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand-soft);}
.plan-card.is-featured{
  border-color:var(--brand);transform:translateY(-8px);
  box-shadow:0 18px 44px rgba(6,59,53,.14);
}
.plan-card.is-featured:hover{transform:translateY(-12px);}
.plan-thumb{position:relative;}
.plan-thumb img{width:100%;height:150px;object-fit:cover;border-radius:0;}
.plan-flag{
  position:absolute;top:14px;left:14px;
  background:var(--coral);color:#fff;font-size:12px;font-weight:700;letter-spacing:.04em;
  padding:5px 12px;border-radius:999px;box-shadow:0 6px 16px rgba(232,92,59,.3);
}
.plan-body{padding:24px 26px 0;display:flex;flex-direction:column;flex:1;}
.plan-name{font-size:22px;font-weight:700;color:var(--ink-900);line-height:1.4;}
.plan-note{margin-top:8px;font-size:14px;color:var(--text-2);line-height:1.8;min-height:50px;}
.plan-price{
  margin-top:18px;padding:16px 0;border-top:1px dashed var(--line);border-bottom:1px dashed var(--line);
  display:flex;align-items:baseline;gap:8px;
}
.plan-price b{font-size:15px;font-weight:700;color:var(--ink-900);}
.plan-price span{font-size:13px;color:var(--text-3);}
.plan-features{margin-top:18px;display:grid;gap:10px;flex:1;}
.plan-features li{display:flex;gap:9px;font-size:14px;line-height:1.7;color:var(--text-2);}
.plan-features li i{color:var(--brand);margin-top:5px;font-size:12px;}
.plan-card .btn{margin-top:24px;width:100%;}

/* ---------- Compare table ---------- */
.compare-wrap{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-rest);
}
table.compare{width:100%;border-collapse:collapse;margin:0;font-size:15px;background:#fff;}
table.compare thead th{
  background:var(--bg-alt);color:var(--ink-900);font-weight:700;font-size:14px;
  padding:18px 20px;text-align:left;border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:2;
}
table.compare thead th.col-hl{background:var(--brand-pale);color:var(--ink-900);}
table.compare tbody td{
  padding:16px 20px;border-bottom:1px solid var(--line);color:var(--text-2);vertical-align:top;
}
table.compare tbody td:first-child{font-weight:600;color:var(--ink-900);width:26%;}
table.compare tbody tr:last-child td{border-bottom:none;}
table.compare tbody tr:hover td{background:#F2F9F7;}
table.compare tbody td.col-hl{background:rgba(220,241,236,.4);color:var(--ink-900);font-weight:600;}
table.compare tbody tr:hover td.col-hl{background:#E4F4EF;}
.tag{display:inline-block;font-size:11px;font-weight:700;padding:3px 9px;border-radius:999px;background:var(--brand-pale);color:var(--ink-700);}
.tag-warm{background:rgba(255,122,89,.14);color:var(--coral-dark);}

/* ---------- Billing rules ---------- */
.rule-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.rule-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:26px 24px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.rule-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand-soft);}
.rule-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;background:var(--brand-pale);color:var(--ink-700);
  font-size:15px;font-weight:700;margin-bottom:16px;
}
.rule-card h3{font-size:18px;font-weight:600;color:var(--ink-900);line-height:1.5;}
.rule-card p{margin-top:10px;font-size:14px;color:var(--text-2);line-height:1.85;}

/* ---------- Scenario split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.split-figure{border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-rest);}
.split-figure img{width:100%;height:100%;min-height:320px;object-fit:cover;border-radius:0;}
.split-copy h2{font-size:32px;line-height:1.25;font-weight:700;letter-spacing:-.5px;color:var(--ink-900);}
.split-copy p{margin-top:16px;font-size:16px;line-height:1.9;color:var(--text-2);}
.check-list{margin-top:26px;display:grid;gap:16px;}
.check-list li{display:flex;gap:14px;align-items:flex-start;}
.check-list .ck{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:var(--brand-pale);color:var(--ink-700);
  display:inline-flex;align-items:center;justify-content:center;font-size:12px;margin-top:3px;
}
.check-list b{display:block;font-size:15px;color:var(--ink-900);font-weight:600;}
.check-list span{display:block;font-size:14px;color:var(--text-2);line-height:1.8;margin-top:2px;}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:.62fr 1.38fr;gap:56px;align-items:start;}
.faq-aside h2{font-size:32px;line-height:1.28;font-weight:700;letter-spacing:-.5px;color:var(--ink-900);}
.faq-aside p{margin-top:16px;font-size:15px;color:var(--text-2);line-height:1.9;}
.faq-aside .btn{margin-top:24px;}
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:var(--brand-soft);box-shadow:var(--shadow-rest);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;cursor:pointer;font-size:16px;font-weight:600;color:var(--ink-900);
  list-style:none;transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand);}
.faq-item[open] summary{color:var(--brand);}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1px solid var(--brand-soft);
  color:var(--brand);display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:600;line-height:1;transition:transform .22s ease,background-color .22s ease;
}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--brand-pale);}
.faq-answer{padding:0 24px 20px;font-size:15px;line-height:1.9;color:var(--text-2);}

/* ---------- CTA ---------- */
.cta-band{padding:0 0 96px;}
.cta-card{
  position:relative;overflow:hidden;border-radius:26px;padding:56px 56px;color:#fff;
  background:var(--grad-brand);
  display:grid;grid-template-columns:1.4fr .6fr;gap:40px;align-items:center;
}
.cta-card::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(110,208,190,.35),rgba(110,208,190,0) 70%);
}
.cta-card h2{position:relative;font-size:30px;line-height:1.3;font-weight:700;letter-spacing:-.5px;color:#fff;}
.cta-card p{position:relative;margin-top:14px;font-size:15px;line-height:1.9;color:rgba(255,255,255,.85);max-width:640px;}
.cta-actions{position:relative;display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink-900);color:#A9C6C0;padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand b{font-size:18px;font-weight:700;color:#fff;letter-spacing:-.3px;}
.footer-about{font-size:14px;line-height:1.9;color:#A9C6C0;max-width:360px;}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-links li + li{margin-top:10px;}
.footer-links a{font-size:14px;color:#A9C6C0;}
.footer-links a:hover{color:var(--brand-soft);}
.footer-contact li{font-size:14px;line-height:1.85;margin-bottom:10px;color:#A9C6C0;}
.footer-contact b{color:#D7E7E3;font-weight:600;}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0 28px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:#8FB0AA;
}

/* ---------- Responsive ---------- */
@media (max-width:1023px){
  .section{padding:72px 0;}
  .page-hero{padding:64px 0 56px;}
  .page-hero h1{font-size:38px;}
  .intro-grid{grid-template-columns:1fr;gap:36px;}
  .intro-figure img{height:280px;}
  .plan-grid{grid-template-columns:1fr;gap:20px;padding-top:8px;}
  .plan-card.is-featured{transform:none;}
  .plan-card.is-featured:hover{transform:translateY(-4px);}
  .rule-grid{grid-template-columns:repeat(2,1fr);}
  .split{grid-template-columns:1fr;gap:36px;}
  .split-figure img{min-height:260px;}
  .faq-layout{grid-template-columns:1fr;gap:32px;}
  .cta-card{grid-template-columns:1fr;padding:44px 36px;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .header-search{max-width:240px;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .header-top-inner{min-height:56px;padding:0 18px;gap:12px;}
  .brand-text{font-size:16px;}
  .brand-mark{width:34px;height:34px;border-radius:10px;}
  .header-search{display:none;}
  .header-actions .btn-ghost{display:none;}
  .nav-toggle{display:inline-block;}
  .header-channels{max-height:0;overflow:hidden;transition:max-height .28s ease;}
  .header-channels.is-open{max-height:280px;}
  .channels-inner{padding:10px 18px 14px;flex-wrap:wrap;overflow:visible;}
  .section{padding:52px 0;}
  h2.section-title,.split-copy h2,.faq-aside h2{font-size:25px;}
  .page-hero{padding:48px 0 44px;}
  .page-hero h1{font-size:30px;line-height:1.25;}
  .page-hero .hero-lead{font-size:15px;}
  .hero-meta{gap:20px;padding-top:22px;margin-top:32px;}
  .hero-meta-item b{font-size:26px;}
  .hero-actions .btn{flex:1 1 100%;}
  .rule-grid{grid-template-columns:1fr;}
  .plan-body{padding:20px 20px 0;}
  .plan-note{min-height:0;}
  .compare-wrap{border:none;box-shadow:none;background:transparent;border-radius:0;}
  table.compare,table.compare tbody,table.compare tr,table.compare td{display:block;width:100%;}
  table.compare thead{display:none;}
  table.compare tbody tr{
    background:#fff;border:1px solid var(--line);border-radius:16px;margin-bottom:14px;padding:6px 4px;
  }
  table.compare tbody td{
    border:none;padding:10px 16px;display:flex;gap:12px;justify-content:space-between;
    font-size:14px;text-align:right;
  }
  table.compare tbody td::before{
    content:attr(data-label);font-weight:600;color:var(--text-3);text-align:left;flex:0 0 40%;
  }
  table.compare tbody td:first-child{
    width:100%;background:var(--bg-alt);border-radius:12px;font-weight:700;color:var(--ink-900);
    padding:12px 16px;
  }
  table.compare tbody td:first-child::before{display:none;}
  table.compare tbody td.col-hl{background:transparent;}
  .cta-band{padding:0 0 52px;}
  .cta-card{padding:34px 24px;border-radius:20px;}
  .cta-card h2{font-size:23px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{padding:52px 0 0;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .faq-item summary{padding:16px 18px;font-size:15px;}
  .faq-answer{padding:0 18px 16px;font-size:14px;}
}
@media (max-width:480px){
  .page-hero h1{font-size:26px;}
  .hero-meta-item b{font-size:22px;}
  .hero-meta{gap:16px;}
}

/* roulang page: category4 */
:root{
  --teal-900:#063B35;
  --teal-700:#0B6A5E;
  --teal-500:#12A08C;
  --teal-300:#6ED0BE;
  --teal-100:#DCF1EC;
  --coral:#FF7A59;
  --coral-dark:#E85C3B;
  --amber:#F2B33D;
  --bg:#F6F8F5;
  --bg-alt:#ECF4F1;
  --white:#FFFFFF;
  --ink:#0E2A26;
  --ink-2:#4A6360;
  --ink-3:#8AA09B;
  --line:#DDE7E3;
  --radius-lg:24px;
  --radius-md:20px;
  --radius-sm:12px;
  --shadow-sm:0 1px 2px rgba(6,59,53,.06),0 8px 24px rgba(6,59,53,.08);
  --shadow-lg:0 16px 40px rgba(6,59,53,.14);
  --grad-brand:linear-gradient(120deg,#063B35 0%,#0B6A5E 45%,#12A08C 100%);
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--teal-700);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--teal-500)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--teal-900);letter-spacing:-.5px;line-height:1.25}
p{margin:0}
button{font-family:inherit}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(18,160,140,.28);border-radius:6px}
[id]{scroll-margin-top:140px}

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

/* ---------- 头部双层导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  background:#FFFFFF;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  box-shadow:0 10px 30px rgba(6,59,53,.10);
}
.header-top-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:72px;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;
  height:34px;
  border-radius:10px;
  background:var(--grad-brand);
  flex:0 0 auto;
}
.brand-mark svg{width:20px;height:20px}
.brand-text{
  font-size:17px;
  font-weight:700;
  color:var(--teal-900);
  letter-spacing:-.3px;
  white-space:nowrap;
}
.header-search{
  position:relative;
  flex:1 1 auto;
  max-width:400px;
  margin:0;
}
.header-search input{
  width:100%;
  height:40px;
  border-radius:999px;
  border:1px solid transparent;
  background:var(--bg-alt);
  color:var(--ink);
  font-size:14px;
  padding:0 46px 0 18px;
  transition:background .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.header-search input::placeholder{color:var(--ink-3)}
.header-search input:focus{
  outline:none;
  background:#FFFFFF;
  border-color:var(--teal-300);
  box-shadow:0 0 0 3px rgba(18,160,140,.18);
}
.header-search button{
  position:absolute;
  right:5px;
  top:5px;
  width:30px;
  height:30px;
  border:0;
  border-radius:50%;
  background:var(--teal-100);
  color:var(--teal-700);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  transition:background .2s ease,color .2s ease;
}
.header-search button:hover{background:var(--teal-500);color:#FFFFFF}
.header-search button svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex:0 0 auto}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  line-height:1;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--coral);color:#FFFFFF;border-color:var(--coral)}
.btn-primary:hover{background:var(--coral-dark);border-color:var(--coral-dark);color:#FFFFFF;transform:translateY(-2px);box-shadow:0 10px 22px rgba(255,122,89,.32)}
.btn-ghost{background:#FFFFFF;color:var(--teal-700);border-color:var(--teal-300)}
.btn-ghost:hover{background:var(--teal-100);color:var(--teal-700);border-color:var(--teal-500)}
.btn-light{background:#FFFFFF;color:var(--teal-900);border-color:#FFFFFF}
.btn-light:hover{background:var(--teal-100);color:var(--teal-900)}
.btn-outline-light{background:transparent;color:#FFFFFF;border-color:rgba(255,255,255,.5)}
.btn-outline-light:hover{background:rgba(255,255,255,.14);border-color:#FFFFFF;color:#FFFFFF}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

.nav-toggle{
  display:none;
  width:40px;
  height:40px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#FFFFFF;
  align-items:center;
  justify-content:center;
  cursor:pointer;
}
.nav-toggle span{display:block;width:16px;height:2px;background:var(--teal-700);border-radius:2px;position:relative;transition:background .2s ease}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";
  position:absolute;
  left:0;
  width:16px;
  height:2px;
  background:var(--teal-700);
  border-radius:2px;
  transition:transform .25s ease,top .25s ease;
}
.nav-toggle span::before{top:-5px}
.nav-toggle span::after{top:5px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{top:0;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg)}

.header-channels{border-top:1px solid var(--line)}
.channels-inner{
  display:flex;
  align-items:center;
  gap:10px;
  padding:10px 24px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.channels-inner::-webkit-scrollbar{display:none}
.channel{
  white-space:nowrap;
  padding:8px 18px;
  border-radius:999px;
  font-size:14px;
  font-weight:600;
  color:var(--ink-2);
  background:var(--bg-alt);
  border:1px solid var(--line);
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.channel:hover{background:#FFFFFF;color:var(--teal-700);border-color:var(--teal-300)}
.channel.is-active{background:var(--teal-500);border-color:var(--teal-500);color:#FFFFFF}
.channel.is-active:hover{background:var(--teal-700);border-color:var(--teal-700);color:#FFFFFF}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:56px 0 72px;
  color:#FFFFFF;
  background-image:linear-gradient(118deg,rgba(6,59,53,.95) 0%,rgba(11,106,94,.90) 46%,rgba(18,160,140,.74) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-120px;
  bottom:-160px;
  width:420px;
  height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(110,208,190,.28) 0%,rgba(110,208,190,0) 70%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:1}
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.68);
  margin-bottom:26px;
}
.crumbs a{color:rgba(255,255,255,.86)}
.crumbs a:hover{color:#FFFFFF}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 16px;
  border-radius:999px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.28);
  font-size:13px;
  font-weight:600;
  color:#FFFFFF;
  margin-bottom:20px;
}
.page-hero h1{
  color:#FFFFFF;
  font-size:clamp(30px,4.2vw,46px);
  line-height:1.2;
  max-width:20em;
}
.hero-lead{
  max-width:640px;
  margin-top:18px;
  font-size:16px;
  color:rgba(255,255,255,.86);
  line-height:1.8;
}
.hero-search{position:relative;max-width:520px;margin-top:28px}
.hero-search input{
  width:100%;
  height:52px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.14);
  color:#FFFFFF;
  font-size:15px;
  padding:0 132px 0 22px;
  transition:background .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.hero-search input::placeholder{color:rgba(255,255,255,.68)}
.hero-search input:focus{
  outline:none;
  background:rgba(255,255,255,.22);
  border-color:rgba(255,255,255,.6);
  box-shadow:0 0 0 3px rgba(110,208,190,.3);
}
.hero-search button{
  position:absolute;
  right:6px;
  top:6px;
  height:40px;
  padding:0 22px;
  border:0;
  border-radius:999px;
  background:var(--coral);
  color:#FFFFFF;
  font-size:14px;
  font-weight:600;
  cursor:pointer;
  transition:background .2s ease,transform .2s ease;
}
.hero-search button:hover{background:var(--coral-dark);transform:translateY(-1px)}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.hero-tags a{
  display:inline-flex;
  align-items:center;
  min-height:34px;
  padding:0 16px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.28);
  color:rgba(255,255,255,.9);
  font-size:13px;
  transition:background .2s ease,border-color .2s ease,color .2s ease;
}
.hero-tags a:hover{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.55);color:#FFFFFF}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0}
.section--alt{background:var(--bg-alt)}
.section-head{max-width:740px;margin-bottom:40px}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.5px;
  color:var(--teal-700);
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--teal-500)}
.section-head h2{font-size:clamp(24px,2.6vw,32px)}
.section-head p{margin-top:14px;font-size:15px;color:var(--ink-2)}

/* ---------- 导语 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split h2{font-size:clamp(24px,2.6vw,32px)}
.lead-p{margin-top:20px;font-size:16px;color:var(--ink-2)}
.body-p{margin-top:14px;font-size:15px;color:var(--ink-2)}
.media-card{margin:0}
.media-card img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:16px;
  border:1px solid var(--line);
  box-shadow:var(--shadow-sm);
}
.media-caption{margin-top:12px;font-size:13px;color:var(--ink-3);text-align:center}

/* ---------- 帮助中心主布局 ---------- */
.support-layout{
  display:grid;
  grid-template-columns:268px minmax(0,1fr);
  gap:36px;
  align-items:start;
}
.anchor-card{
  position:sticky;
  top:140px;
  background:#FFFFFF;
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:22px;
}
.anchor-card h3{
  font-size:15px;
  font-weight:600;
  color:var(--ink-2);
  letter-spacing:0;
  margin-bottom:14px;
}
.anchor-list{display:flex;flex-direction:column;gap:6px}
.anchor-list a{
  display:flex;
  align-items:center;
  gap:10px;
  min-height:44px;
  padding:0 16px;
  border-radius:999px;
  font-size:14px;
  font-weight:600;
  color:var(--ink-2);
  background:var(--bg-alt);
  transition:background .2s ease,color .2s ease;
}
.anchor-list a::before{
  content:"";
  flex:0 0 auto;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--teal-300);
  transition:background .2s ease;
}
.anchor-list a:hover{background:var(--teal-100);color:var(--teal-700)}
.anchor-list a:hover::before{background:var(--teal-500)}
.anchor-list a.is-active{background:var(--teal-500);color:#FFFFFF}
.anchor-list a.is-active::before{background:#FFFFFF}
.anchor-note{
  margin-top:18px;
  padding-top:16px;
  border-top:1px dashed var(--line);
  font-size:13px;
  color:var(--ink-3);
  line-height:1.7;
}

.support-main{min-width:0}
.support-tools{position:relative;margin-bottom:22px}
.support-tools input{
  width:100%;
  height:52px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#FFFFFF;
  color:var(--ink);
  font-size:15px;
  padding:0 56px 0 22px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.support-tools input::placeholder{color:var(--ink-3)}
.support-tools input:focus{
  outline:none;
  border-color:var(--teal-300);
  box-shadow:0 0 0 3px rgba(18,160,140,.18);
}
.support-tools .tool-icon{
  position:absolute;
  right:20px;
  top:50%;
  transform:translateY(-50%);
  width:20px;
  height:20px;
  color:var(--teal-500);
  pointer-events:none;
}
.support-tools .tool-icon svg{width:100%;height:100%;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round}

.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:#FFFFFF;
  border:1px solid var(--line);
  border-radius:16px;
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:var(--teal-300)}
.faq-item[open]{border-color:var(--teal-300);box-shadow:var(--shadow-sm)}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 22px;
  min-height:44px;
  cursor:pointer;
  list-style:none;
  font-size:16px;
  font-weight:600;
  color:var(--teal-900);
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item[open] summary{color:var(--teal-500)}
.faq-icon{
  flex:0 0 auto;
  width:22px;
  height:22px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:currentColor;
  transition:transform .25s ease;
}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-body{
  padding:16px 22px 20px;
  border-top:1px dashed var(--line);
  font-size:15px;
  line-height:1.85;
  color:var(--ink-2);
}

/* ---------- 三步 ---------- */
.step-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.step-card{
  background:#FFFFFF;
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:28px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.step-card:hover{transform:translateY(-4px);border-color:var(--teal-300);box-shadow:var(--shadow-lg)}
.step-num{
  font-size:44px;
  font-weight:700;
  line-height:1;
  letter-spacing:-1.5px;
  color:var(--teal-100);
  font-variant-numeric:tabular-nums;
  margin-bottom:14px;
}
.step-card h3{font-size:19px;margin-bottom:10px}
.step-card p{font-size:15px;color:var(--ink-2)}

/* ---------- 准备材料 ---------- */
.check-list{display:flex;flex-direction:column;gap:14px;margin-top:26px}
.check-list li{
  display:flex;
  align-items:flex-start;
  gap:12px;
  padding:16px 18px;
  background:#FFFFFF;
  border:1px solid var(--line);
  border-radius:14px;
  font-size:15px;
  color:var(--ink-2);
  transition:border-color .2s ease,transform .2s ease;
}
.check-list li:hover{border-color:var(--teal-300);transform:translateX(3px)}
.check-list li::before{
  content:"";
  flex:0 0 auto;
  width:18px;
  height:18px;
  margin-top:4px;
  border-radius:50%;
  background:var(--teal-100);
  border:1px solid var(--teal-300);
}

/* ---------- 指标卡 ---------- */
.metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.metric{
  background:#FFFFFF;
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:28px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.metric:hover{transform:translateY(-3px);border-color:var(--teal-300);box-shadow:var(--shadow-sm)}
.metric-value{
  font-size:clamp(28px,3vw,38px);
  font-weight:700;
  line-height:1.1;
  letter-spacing:-1px;
  color:var(--teal-700);
  font-variant-numeric:tabular-nums;
}
.metric-value small{font-size:15px;font-weight:600;color:var(--ink-3);margin-left:4px;letter-spacing:0}
.metric-label{margin-top:6px;font-size:14px;font-weight:600;color:var(--teal-900)}
.metric p{margin-top:10px;font-size:14px;color:var(--ink-2);line-height:1.75}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  display:grid;
  grid-template-columns:1.4fr auto;
  gap:36px;
  align-items:center;
  padding:48px;
  border-radius:var(--radius-lg);
  background:var(--grad-brand);
  color:#FFFFFF;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-80px;
  top:-100px;
  width:320px;
  height:320px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(110,208,190,.26) 0%,rgba(110,208,190,0) 70%);
  pointer-events:none;
}
.cta-band h2{color:#FFFFFF;font-size:clamp(22px,2.4vw,30px);position:relative;z-index:1}
.cta-band p{
  margin-top:12px;
  max-width:640px;
  font-size:15px;
  color:rgba(255,255,255,.84);
  position:relative;
  z-index:1;
}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:1}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--teal-900);color:#A9C6C0;padding:72px 0 0;margin-top:0}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{display:flex;align-items:center;gap:10px;color:#FFFFFF;margin-bottom:16px;font-size:17px;font-weight:700}
.footer-about{font-size:14px;line-height:1.85;color:#A9C6C0}
.footer-title{color:#FFFFFF;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-links li,.footer-contact li{font-size:14px;line-height:1.9;margin-bottom:8px}
.footer-links a{color:#A9C6C0}
.footer-links a:hover{color:var(--teal-300)}
.footer-contact b{color:#FFFFFF;font-weight:600}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:14px;
  font-size:13px;
  color:rgba(169,198,192,.82);
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .section{padding:72px 0}
  .split{grid-template-columns:1fr;gap:36px}
  .support-layout{grid-template-columns:1fr;gap:28px}
  .anchor-card{position:static}
  .anchor-list{flex-direction:row;flex-wrap:wrap;gap:8px}
  .anchor-list a{padding:0 14px}
  .anchor-note{margin-top:14px}
  .step-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{grid-template-columns:1fr;padding:36px}
  .header-search{max-width:280px}
}

@media (max-width:767px){
  body{font-size:15px}
  .section{padding:48px 0}
  .header-top-inner{height:56px;gap:12px;padding:0 16px}
  .brand-text{font-size:15px}
  .header-search{display:none}
  .header-actions .btn-ghost{display:none}
  .nav-toggle{display:inline-flex}
  .header-channels{display:none}
  .header-channels.is-open{display:block}
  .channels-inner{flex-wrap:wrap;overflow:visible;padding:12px 16px 16px}
  .page-hero{padding:40px 0 52px}
  .hero-lead{font-size:15px}
  .hero-tags{gap:8px}
  .step-grid{grid-template-columns:1fr}
  .metrics{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-band{padding:28px;border-radius:20px;gap:24px}
  .cta-actions .btn{width:100%}
  .faq-item summary{padding:16px 18px;font-size:15px}
  .faq-body{padding:14px 18px 18px;font-size:14px}
  .support-tools input{height:48px;font-size:14px;padding:0 48px 0 18px}
  .anchor-card{padding:18px}
  .site-footer{padding-top:48px}
}

@media (max-width:520px){
  .container{padding:0 16px}
  .page-hero h1{font-size:28px}
  .hero-search input{height:48px;padding:0 124px 0 18px;font-size:14px}
  .hero-search button{height:36px;top:6px;padding:0 16px;font-size:13px}
  .hero-tags a{font-size:12px;padding:0 13px;min-height:32px}
  .step-card,.metric{padding:22px}
  .btn{width:100%}
  .header-actions .btn-sm{width:auto}
}

/* roulang page: category5 */
:root{
  --jade-900:#063B35;
  --jade-800:#0B6A5E;
  --jade-600:#0F8677;
  --jade-500:#12A08C;
  --jade-300:#6ED0BE;
  --jade-100:#DCF1EC;
  --coral:#FF7A59;
  --coral-dark:#E85C3B;
  --amber:#F2B33D;
  --bg:#F6F8F5;
  --bg-alt:#ECF4F1;
  --white:#FFFFFF;
  --text:#0E2A26;
  --text-2:#4A6360;
  --text-3:#8AA09B;
  --line:#DDE7E3;
  --radius-lg:24px;
  --radius-md:20px;
  --radius-sm:16px;
  --radius-xs:12px;
  --shadow-1:0 1px 2px rgba(6,59,53,.06),0 8px 24px rgba(6,59,53,.08);
  --shadow-2:0 16px 40px rgba(6,59,53,.14);
  --grad-brand:linear-gradient(120deg,#063B35 0%,#0B6A5E 45%,#12A08C 100%);
  --grad-warm:linear-gradient(120deg,#FF7A59 0%,#F2B33D 100%);
  --focus-ring:0 0 0 3px rgba(18,160,140,.28);
  --font-cn:"PingFang SC","Hiragino Sans GB","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-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0}
a{color:var(--jade-800);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover{color:var(--jade-500)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure{margin:0}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:none;box-shadow:var(--focus-ring);border-radius:8px}
::selection{background:var(--jade-100);color:var(--jade-900)}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
.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}

/* ============ 顶部双层导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:300;
  background:var(--white);
  border-bottom:1px solid var(--line);
  transition:box-shadow .28s ease,background-color .28s ease;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.94);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  box-shadow:0 10px 28px rgba(6,59,53,.10);
}
.header-top-inner{
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
  height:72px;
  display:flex;
  align-items:center;
  gap:24px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand:hover{color:var(--jade-900)}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--grad-brand);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(11,106,94,.28);
  flex:0 0 auto;
}
.brand-mark svg{width:22px;height:22px}
.brand-text{font-size:18px;font-weight:700;color:var(--jade-900);letter-spacing:-.4px;white-space:nowrap}

.header-search{
  flex:1 1 auto;
  max-width:340px;
  height:40px;
  display:flex;
  align-items:center;
  gap:8px;
  padding:0 6px 0 16px;
  background:var(--bg-alt);
  border:1px solid transparent;
  border-radius:999px;
  transition:background-color .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.header-search:focus-within{background:#fff;border-color:var(--jade-300);box-shadow:var(--focus-ring)}
.header-search input{
  flex:1 1 auto;min-width:0;height:100%;
  border:0;background:transparent;outline:none;
  font-size:14px;color:var(--text);
}
.header-search input::placeholder{color:var(--text-3)}
.header-search button{
  width:32px;height:32px;border-radius:999px;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--jade-800);
  transition:background-color .2s ease,color .2s ease;
}
.header-search button:hover{background:var(--jade-100);color:var(--jade-900)}
.header-search button svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round}

.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);
  align-items:center;justify-content:center;
  transition:background-color .2s ease,border-color .2s ease;
}
.nav-toggle:hover{background:var(--jade-100);border-color:var(--jade-300)}
.nav-toggle span{
  position:relative;display:block;width:18px;height:2px;border-radius:2px;
  background:var(--jade-900);transition:background-color .2s ease;
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;
  background:var(--jade-900);transition:transform .25s ease;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

.header-channels{border-top:1px solid var(--line);background:var(--white)}
.channels-inner{
  display:flex;align-items:center;gap:8px;
  padding-top:10px;padding-bottom:10px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.channels-inner::-webkit-scrollbar{display:none}
.channel{
  flex:0 0 auto;
  display:inline-flex;align-items:center;
  height:36px;padding:0 18px;
  border-radius:999px;
  font-size:14px;font-weight:500;
  color:var(--text-2);
  background:#F2F7F5;
  border:1px solid var(--line);
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.channel:hover{background:var(--jade-100);border-color:var(--jade-300);color:var(--jade-900)}
.channel:active{transform:translateY(1px)}
.channel.is-active{background:var(--jade-800);border-color:var(--jade-800);color:#fff}
.channel.is-active:hover{background:var(--jade-900);border-color:var(--jade-900);color:#fff}

/* ============ 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:600;letter-spacing:.2px;
  border:1px solid transparent;
  white-space:nowrap;
  transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease,color .22s ease,border-color .22s ease;
}
.btn:active{transform:translateY(0)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--coral);color:#fff;box-shadow:0 8px 20px rgba(255,122,89,.28)}
.btn-primary:hover{background:var(--coral-dark);color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(255,122,89,.34)}
.btn-ghost{background:#fff;color:var(--jade-800);border-color:var(--line)}
.btn-ghost:hover{background:var(--jade-100);border-color:var(--jade-300);color:var(--jade-900)}
.btn-jade{background:var(--jade-800);color:#fff;box-shadow:0 8px 20px rgba(11,106,94,.24)}
.btn-jade:hover{background:var(--jade-900);color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(11,106,94,.3)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-outline-light:hover{background:rgba(255,255,255,.14);border-color:#fff;color:#fff;transform:translateY(-2px)}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none!important;box-shadow:none!important}

.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--jade-800);
  transition:color .2s ease;
}
.link-arrow i{font-size:12px;transition:transform .22s ease}
.link-arrow:hover{color:var(--jade-500)}
.link-arrow:hover i{transform:translateX(4px)}

/* ============ Hero ============ */
.page-hero{position:relative;overflow:hidden;background:var(--jade-900);color:#fff}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.6;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(6,59,53,.95) 0%,rgba(11,106,94,.88) 46%,rgba(18,160,140,.76) 100%);
}
.page-hero-inner{position:relative;z-index:2;padding-top:44px;padding-bottom:64px}
.crumbs{margin-bottom:26px}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.7)}
.crumbs li{display:inline-flex;align-items:center;gap:8px}
.crumbs li+li::before{content:"/";color:rgba(255,255,255,.4)}
.crumbs a{color:rgba(255,255,255,.86)}
.crumbs a:hover{color:#fff}
.crumbs [aria-current]{color:#fff;font-weight:600}

.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;margin-bottom:18px;
  border-radius:999px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.28);
  font-size:12px;font-weight:600;letter-spacing:1px;
  color:#fff;
}
.hero-eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--jade-300)}

.page-hero h1{
  font-size:clamp(30px,4.4vw,50px);
  line-height:1.18;
  font-weight:700;
  letter-spacing:-.5px;
  max-width:16em;
  margin-bottom:18px;
  color:#fff;
}
.page-hero .hero-lead{
  max-width:46em;
  font-size:16px;
  line-height:1.9;
  color:rgba(255,255,255,.84);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

.hero-stats{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:14px;
  margin-top:44px;
  max-width:760px;
}
.stat-card{
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.22);
  border-radius:var(--radius-sm);
  padding:16px 18px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.18);
  transition:background-color .22s ease,transform .22s ease;
}
.stat-card:hover{background:rgba(255,255,255,.18);transform:translateY(-3px)}
.stat-num{
  font-size:30px;line-height:1.1;font-weight:700;
  letter-spacing:-1px;
  font-variant-numeric:tabular-nums;
  color:#fff;
}
.stat-num small{font-size:13px;font-weight:600;letter-spacing:0;margin-left:4px;color:var(--jade-300)}
.stat-label{font-size:12.5px;color:rgba(255,255,255,.72);margin-top:4px}

/* ============ 通用板块 ============ */
.section{padding:96px 0}
.section--alt{background:var(--bg-alt)}
.section--tight{padding:72px 0}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{
  font-size:clamp(24px,2.6vw,32px);
  line-height:1.25;
  font-weight:700;
  letter-spacing:-.5px;
  color:var(--jade-900);
  margin-bottom:14px;
}
.section-head p{font-size:16px;line-height:1.9;color:var(--text-2)}
.section-head--row{
  max-width:none;
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;
}
.section-head--row > div{max-width:680px}

.tag{
  display:inline-flex;align-items:center;
  height:24px;padding:0 10px;border-radius:999px;
  background:var(--jade-100);color:var(--jade-800);
  font-size:11.5px;font-weight:600;letter-spacing:.4px;
  white-space:nowrap;
}
.tag--coral{background:rgba(255,122,89,.14);color:var(--coral-dark)}
.tag--amber{background:rgba(242,179,61,.18);color:#8A5B00}

/* ============ 导语块 ============ */
.intro-panel{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:40px;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:40px;
  box-shadow:var(--shadow-1);
}
.intro-panel h2{
  font-size:clamp(22px,2.3vw,28px);
  line-height:1.3;font-weight:700;letter-spacing:-.4px;
  color:var(--jade-900);margin-bottom:16px;
}
.intro-panel p{font-size:16px;line-height:1.9;color:var(--text-2)}
.intro-panel p+p{margin-top:14px}
.intro-list li{
  display:flex;gap:14px;
  padding:16px 0;
  border-bottom:1px dashed var(--line);
}
.intro-list li:last-child{border-bottom:0;padding-bottom:0}
.intro-list li:first-child{padding-top:0}
.intro-list .num{
  flex:0 0 auto;
  width:32px;height:32px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--jade-100);color:var(--jade-800);
  font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;
}
.intro-list b{display:block;font-size:15.5px;color:var(--jade-900);margin-bottom:2px}
.intro-list span{font-size:14.5px;color:var(--text-2);line-height:1.8}

/* ============ 三卡网格 ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}

.info-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:28px;
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.info-card:hover{
  border-color:var(--jade-300);
  transform:translateY(-4px);
  box-shadow:var(--shadow-2);
}
.info-card .icon-box{
  width:46px;height:46px;border-radius:14px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--jade-100);color:var(--jade-800);
  font-size:18px;margin-bottom:18px;
  transition:background-color .25s ease,color .25s ease;
}
.info-card:hover .icon-box{background:var(--jade-800);color:#fff}
.info-card h3{font-size:19px;line-height:1.45;font-weight:600;color:var(--jade-900);margin-bottom:10px}
.info-card p{font-size:15px;line-height:1.85;color:var(--text-2)}
.info-card .card-foot{margin-top:20px}

/* ============ 交错长条卡 ============ */
.update-stack{display:flex;flex-direction:column;gap:24px}
.update-card{
  display:grid;
  grid-template-columns:1.02fr 1fr;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  transition:border-color .25s ease,box-shadow .25s ease,transform .25s ease;
}
.update-card:hover{border-color:var(--jade-300);box-shadow:var(--shadow-2);transform:translateY(-3px)}
.update-card.reverse .update-media{order:2}
.update-media{position:relative;min-height:260px;overflow:hidden;background:var(--jade-100)}
.update-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.update-card:hover .update-media img{transform:scale(1.04)}
.update-body{padding:34px 36px;display:flex;flex-direction:column;justify-content:center}
.update-body .meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:14px;font-size:12.5px;color:var(--text-3)}
.update-body h3{font-size:21px;line-height:1.45;font-weight:600;color:var(--jade-900);margin-bottom:12px}
.update-body p{font-size:15px;line-height:1.9;color:var(--text-2)}
.update-body .points{margin-top:18px;display:flex;flex-direction:column;gap:8px}
.update-body .points li{
  position:relative;padding-left:20px;
  font-size:14.5px;line-height:1.8;color:var(--text-2);
}
.update-body .points li::before{
  content:"";position:absolute;left:0;top:10px;
  width:7px;height:7px;border-radius:2px;
  background:var(--jade-300);
}

/* ============ 时间线 ============ */
.timeline{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
  position:relative;
}
.timeline::before{
  content:"";position:absolute;left:0;right:0;top:22px;height:2px;
  background:linear-gradient(90deg,var(--jade-300),var(--jade-100));
  border-radius:2px;
}
.step{position:relative;padding-top:60px}
.step::before{
  content:"";position:absolute;top:14px;left:0;
  width:18px;height:18px;border-radius:50%;
  background:#fff;border:3px solid var(--jade-500);
  box-shadow:0 0 0 5px rgba(18,160,140,.12);
  z-index:1;
}
.step-num{
  position:absolute;top:0;left:32px;
  font-size:12px;font-weight:700;letter-spacing:1px;
  color:var(--jade-500);
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:17px;font-weight:600;color:var(--jade-900);margin-bottom:8px;line-height:1.5}
.step p{font-size:14.5px;line-height:1.85;color:var(--text-2)}

/* ============ 获取方式 / 双栏清单 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:start}
.check-list li{
  display:flex;gap:12px;
  padding:14px 0;
  border-bottom:1px solid var(--line);
  font-size:15px;line-height:1.8;color:var(--text-2);
}
.check-list li:last-child{border-bottom:0}
.check-list i{color:var(--jade-500);font-size:15px;margin-top:6px;flex:0 0 auto}
.check-list b{color:var(--jade-900);font-weight:600}

.panel-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:32px;
  box-shadow:var(--shadow-1);
}
.panel-card h3{font-size:20px;font-weight:600;color:var(--jade-900);margin-bottom:10px;line-height:1.5}
.panel-card > p{font-size:15px;line-height:1.85;color:var(--text-2);margin-bottom:22px}
.mini-rows{display:flex;flex-direction:column;gap:0}
.mini-row{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:14px 0;border-top:1px solid var(--line);
  font-size:14.5px;color:var(--text-2);
}
.mini-row:first-child{border-top:0}
.mini-row b{color:var(--jade-900);font-weight:600}
.mini-row .val{color:var(--jade-800);font-weight:600;font-variant-numeric:tabular-nums;white-space:nowrap}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:280px 1fr;gap:56px;align-items:start}
.faq-side h2{
  font-size:clamp(24px,2.6vw,30px);
  line-height:1.3;font-weight:700;letter-spacing:-.5px;color:var(--jade-900);
  margin-bottom:14px;
}
.faq-side p{font-size:15px;line-height:1.85;color:var(--text-2);margin-bottom:22px}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  padding:0 24px;
  transition:border-color .22s ease,box-shadow .22s ease,background-color .22s ease;
}
.faq-item:hover{border-color:var(--jade-300)}
.faq-item[open]{border-color:var(--jade-300);box-shadow:var(--shadow-1);background:#fff}
.faq-item summary{
  list-style:none;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;
  font-size:16px;font-weight:600;color:var(--jade-900);
  cursor:pointer;
  transition:color .22s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--jade-600)}
.faq-item[open] summary{color:var(--jade-600)}
.faq-icon{
  flex:0 0 auto;
  width:26px;height:26px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--jade-100);color:var(--jade-800);
  font-size:13px;line-height:1;
  transition:transform .28s ease,background-color .22s ease,color .22s ease;
}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--jade-800);color:#fff}
.faq-body{
  padding:0 0 20px;
  font-size:15px;line-height:1.9;color:var(--text-2);
  border-top:1px solid var(--line);
  padding-top:16px;
}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-lg);
  background:var(--grad-brand);
  color:#fff;
  padding:52px;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:44px;
  align-items:center;
  box-shadow:0 24px 60px rgba(6,59,53,.22);
}
.cta-band::before{
  content:"";position:absolute;right:-80px;top:-80px;
  width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(110,208,190,.28),transparent 70%);
}
.cta-band h2{
  position:relative;
  font-size:clamp(24px,2.6vw,30px);
  line-height:1.3;font-weight:700;letter-spacing:-.5px;
  margin-bottom:14px;
}
.cta-band p{position:relative;font-size:15.5px;line-height:1.9;color:rgba(255,255,255,.84);margin-bottom:26px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

.consult-card{
  position:relative;
  background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.22);
  border-radius:var(--radius-md);
  padding:26px;
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
}
.consult-card .field{margin-bottom:14px}
.consult-card label{display:block;font-size:13.5px;font-weight:600;color:rgba(255,255,255,.9);margin-bottom:6px}
.consult-card label .req{color:var(--amber);margin-left:2px}
.consult-card input,
.consult-card textarea{
  width:100%;
  height:46px;
  padding:0 14px;
  border-radius:var(--radius-xs);
  border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.14);
  color:#fff;
  font-size:14.5px;
  outline:none;
  transition:background-color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.consult-card textarea{height:84px;padding:12px 14px;resize:vertical;line-height:1.7}
.consult-card input::placeholder,
.consult-card textarea::placeholder{color:rgba(255,255,255,.62)}
.consult-card input:focus,
.consult-card textarea:focus{background:rgba(255,255,255,.22);border-color:var(--jade-300);box-shadow:0 0 0 3px rgba(110,208,190,.28)}
.consult-note{font-size:12px;line-height:1.7;color:rgba(255,255,255,.66);margin-top:12px}

/* ============ 页脚 ============ */
.site-footer{background:var(--jade-900);color:#A9C6C0;padding:72px 0 0;margin-top:0}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand b{font-size:17px;color:#fff;font-weight:700;letter-spacing:-.3px}
.footer-about{font-size:14px;line-height:1.9;color:#A9C6C0;max-width:34em}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.5px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:#A9C6C0;transition:color .2s ease,padding-left .2s ease}
.footer-links a:hover{color:var(--jade-300);padding-left:3px}
.footer-contact li{font-size:14px;line-height:1.8;margin-bottom:10px;color:#A9C6C0}
.footer-contact b{color:#DCF1EC;font-weight:600}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:12.5px;color:rgba(169,198,192,.8);
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .section{padding:72px 0}
  .section--tight{padding:56px 0}
  .header-top-inner{height:64px;gap:16px}
  .header-search{max-width:240px}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .intro-panel{grid-template-columns:1fr;gap:28px;padding:32px}
  .update-card{grid-template-columns:1fr}
  .update-card.reverse .update-media{order:0}
  .update-media{min-height:210px}
  .update-body{padding:28px}
  .timeline{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
  .timeline::before{display:none}
  .step{padding-top:34px}
  .step::before{top:0}
  .step-num{top:0;left:32px}
  .faq-wrap{grid-template-columns:1fr;gap:32px}
  .cta-band{grid-template-columns:1fr;padding:38px;gap:30px}
  .split{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}

@media (max-width:767px){
  body{font-size:15px}
  .header-top-inner{height:58px;padding:0 16px;gap:10px}
  .brand-text{font-size:15px;letter-spacing:-.2px}
  .brand-mark{width:32px;height:32px;border-radius:10px}
  .brand-mark svg{width:19px;height:19px}
  .header-search{display:none}
  .header-actions .btn-ghost{display:none}
  .header-actions .btn-sm{height:36px;padding:0 14px;font-size:13px}
  .nav-toggle{display:inline-flex}
  .header-channels{display:none}
  .site-header.nav-open .header-channels{display:block}
  .site-header.nav-open .nav-toggle span{background:transparent}
  .site-header.nav-open .nav-toggle span::before{transform:translateY(6px) rotate(45deg)}
  .site-header.nav-open .nav-toggle span::after{transform:translateY(-6px) rotate(-45deg)}
  .channels-inner{flex-wrap:wrap;gap:8px;padding:12px 16px 16px}
  .channel{height:34px;padding:0 14px;font-size:13.5px}

  .container{padding-left:16px;padding-right:16px}
  .page-hero-inner{padding-top:30px;padding-bottom:44px}
  .page-hero h1{font-size:clamp(26px,7vw,32px);letter-spacing:-.3px}
  .page-hero .hero-lead{font-size:15px}
  .hero-actions{gap:10px;margin-top:22px}
  .btn{height:46px;padding:0 20px;font-size:14.5px}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:30px}
  .stat-card{padding:14px}
  .stat-num{font-size:24px}

  .section{padding:48px 0}
  .section--tight{padding:40px 0}
  .section-head{margin-bottom:28px}
  .section-head p{font-size:15px}

  .grid-3,.grid-2{grid-template-columns:1fr;gap:16px}
  .info-card{padding:22px;border-radius:var(--radius-md)}
  .intro-panel{padding:24px;border-radius:var(--radius-md)}
  .update-body{padding:22px}
  .update-body h3{font-size:18px}
  .update-media{min-height:180px}

  .timeline{grid-template-columns:1fr;gap:22px}
  .step{padding-top:0;padding-left:44px}
  .step::before{top:4px;left:0}
  .step-num{position:static;display:block;margin-bottom:4px}

  .faq-item{padding:0 18px}
  .faq-item summary{font-size:15px;padding:16px 0}
  .faq-body{font-size:14.5px}

  .cta-band{padding:26px;border-radius:var(--radius-md)}
  .consult-card{padding:20px}
  .cta-actions .btn{width:100%}

  .site-footer{padding-top:48px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;gap:8px;font-size:12px}
}

@media (max-width:400px){
  .hero-stats{grid-template-columns:1fr}
  .brand-text{font-size:14px}
}