/* roulang page: index */
:root{
  --brand-700:#0F5E9C;
  --brand-600:#1673BE;
  --brand-900:#0A3F6B;
  --brand-100:#E7F1FA;
  --brand-050:#F4F9FD;
  --mint-500:#16B39A;
  --hot-500:#FF7A2F;
  --hot-600:#EA6418;
  --ink-900:#14202B;
  --ink-600:#4A5A6A;
  --ink-400:#8A98A6;
  --line:#E4EAF1;
  --bg:#F6F8FB;
  --surface:#FFFFFF;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-chip:999px;
  --radius-input:10px;
  --shadow-1:0 1px 2px rgba(16,42,67,.06),0 6px 18px rgba(16,42,67,.05);
  --shadow-2:0 4px 10px rgba(16,42,67,.08),0 16px 36px rgba(16,42,67,.10);
  --sec:88px;
}
*{box-sizing:border-box}
*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;line-height:1.85;color:var(--ink-900);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-600);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--brand-700)}
h1,h2,h3,h4,h5{margin:0;font-weight:700;color:var(--ink-900)}
h1{font-size:clamp(30px,4vw,44px);line-height:1.25;letter-spacing:-.01em}
h2{font-size:clamp(24px,2.6vw,32px);line-height:1.35}
h3{font-size:20px;line-height:1.5;font-weight:600}
p{margin:0 0 1.25em;text-align:left}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand-700);outline-offset:2px;border-radius:4px}
@media (min-width:1200px){.container{max-width:1200px}}
.container{padding-left:24px;padding-right:24px}
@media (max-width:575.98px){.container{padding-left:16px;padding-right:16px}}
.sec{padding:var(--sec) 0}
.sec-alt{background:var(--surface)}
@media (max-width:991.98px){:root{--sec:64px}}
@media (max-width:575.98px){:root{--sec:56px}}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--brand-900);color:rgba(255,255,255,.86);font-size:13px;line-height:36px;height:36px;overflow:hidden}
.topbar .tb-inner{display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar .tb-promise{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar .tb-links{display:flex;align-items:center;gap:18px;white-space:nowrap}
.topbar a{color:rgba(255,255,255,.86)}
.topbar a:hover{color:#fff}
@media (max-width:767.98px){.topbar .tb-promise{display:none}.topbar .tb-inner{justify-content:flex-end}}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:var(--surface);border-bottom:1px solid var(--line);transition:box-shadow .2s ease}
.site-header.scrolled{box-shadow:var(--shadow-1)}
.hdr-inner{display:flex;align-items:center;gap:24px;height:74px}
.brand{display:flex;align-items:center;gap:10px;color:var(--brand-900);flex-shrink:0}
.brand:hover{color:var(--brand-700)}
.brand-mark{color:var(--brand-700);display:flex}
.brand-text{font-size:20px;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.seg-nav{flex:1 1 auto;min-width:0;display:flex}
.seg-wrap{display:flex;align-items:center;gap:2px;background:var(--brand-050);border:1px solid var(--line);border-radius:var(--radius-chip);padding:4px;max-width:100%}
.chip{padding:8px 18px;border-radius:var(--radius-chip);color:var(--ink-600);font-size:14px;font-weight:500;white-space:nowrap;transition:background .18s ease,color .18s ease}
.chip:hover{background:var(--brand-050);color:var(--brand-700);background:rgba(15,94,156,.08);text-decoration:none}
.chip.active{background:var(--brand-100);color:var(--brand-700);font-weight:600;box-shadow:inset 0 0 0 1px rgba(15,94,156,.18)}
.hdr-actions{display:flex;align-items:center;gap:12px;margin-left:24px;flex-shrink:0}
.icon-btn{width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:var(--surface);display:flex;align-items:center;justify-content:center;color:var(--ink-600);cursor:pointer;transition:background .18s ease,color .18s ease,border-color .18s ease}
.icon-btn:hover{background:var(--brand-050);color:var(--brand-700);border-color:var(--brand-100)}
@media (max-width:1199.98px){
  .hdr-inner{gap:14px}
  .chip{padding:8px 13px;font-size:13.5px}
  .hdr-actions{margin-left:12px}
}
@media (max-width:991.98px){
  .hdr-inner{flex-wrap:wrap;height:auto;padding:10px 0 8px;gap:10px 12px}
  .brand{order:1;flex:1 1 auto}
  .brand-text{font-size:18px}
  .hdr-actions{order:2;margin-left:0}
  .seg-nav{order:3;flex:1 0 100%;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;padding-bottom:4px}
  .seg-nav::-webkit-scrollbar{display:none}
  .seg-wrap{width:max-content;flex-wrap:nowrap}
}
@media (max-width:575.98px){
  .btn-hdr{display:none}
  .brand-text{font-size:17px}
}

/* ---------- 按钮 ---------- */
.btn-x{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--radius-btn);font-weight:600;padding:12px 24px;border:1px solid transparent;cursor:pointer;transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;line-height:1.4;text-align:center}
.btn-brand{background:var(--brand-700);color:#fff;border-color:var(--brand-700)}
.btn-brand:hover{background:var(--brand-900);border-color:var(--brand-900);color:#fff;transform:translateY(-1px);text-decoration:none}
.btn-brand:active{transform:none}
.btn-ghost{background:var(--surface);color:var(--brand-700);border-color:var(--brand-700)}
.btn-ghost:hover{background:var(--brand-050);color:var(--brand-700);text-decoration:none}
.btn-hot{background:var(--hot-500);color:#fff;border-color:var(--hot-500)}
.btn-hot:hover{background:var(--hot-600);border-color:var(--hot-600);color:#fff;text-decoration:none;transform:translateY(-1px)}
.btn-sm-x{padding:9px 18px;font-size:14px}
.btn-lg-x{padding:14px 30px;font-size:16px}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--brand-700);font-weight:600;padding:6px 0}
.btn-text .arw{transition:transform .2s ease}
.btn-text:hover .arw{transform:translateX(3px)}
.btn-full{width:100%}

/* ---------- 通用卡片 / 标签 ---------- */
.card-x{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;display:block;color:inherit}
.card-x:hover{transform:translateY(-2px);border-color:var(--brand-100);box-shadow:var(--shadow-2);color:inherit;text-decoration:none}
.chip-cat{display:inline-block;background:var(--brand-100);color:var(--brand-700);font-size:13px;line-height:1.6;padding:3px 12px;border-radius:var(--radius-chip);font-weight:600}
.tag-out{display:inline-block;border:1px solid var(--line);background:var(--surface);color:var(--ink-600);font-size:13px;padding:4px 12px;border-radius:var(--radius-chip)}
.tag-mint{display:inline-block;background:rgba(22,179,154,.10);color:#0E8A76;border:1px solid rgba(22,179,154,.28);font-size:13px;padding:4px 12px;border-radius:var(--radius-chip);font-weight:600}
.sec-head{margin-bottom:32px}
.sec-title{padding-left:16px;border-left:4px solid var(--brand-700);line-height:1.25}
.sec-sub{margin-top:12px;padding-left:20px;color:var(--ink-600);font-size:15px;max-width:720px;margin-bottom:0}
.num{font-variant-numeric:tabular-nums}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:72px 0 84px;background:linear-gradient(135deg,var(--brand-050) 0%,#FFFFFF 62%)}
.hero::after{content:"";position:absolute;right:-140px;top:-90px;width:520px;height:520px;border-radius:50%;border:1px solid var(--brand-100);pointer-events:none}
.hero-inner{position:relative;z-index:1}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-chip);padding:6px 14px;font-size:13px;color:var(--ink-600);margin-bottom:20px;box-shadow:var(--shadow-1)}
.hero-dot{width:7px;height:7px;border-radius:50%;background:var(--mint-500);display:inline-block}
.hero h1{margin-bottom:18px}
.hero-sub{font-size:17px;color:var(--ink-600);max-width:540px;margin-bottom:28px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px}
.hero-stats{display:flex;flex-wrap:wrap;gap:36px;border-top:1px solid var(--line);padding-top:24px}
.hero-stat b{display:block;font-size:24px;color:var(--brand-700);font-weight:700;line-height:1.25;font-variant-numeric:tabular-nums}
.hero-stat span{font-size:13px;color:var(--ink-400)}
.hero-visual{position:relative;border-radius:20px;overflow:hidden;box-shadow:var(--shadow-2)}
.hero-visual img{width:100%;border-radius:20px;aspect-ratio:4/3;object-fit:cover}
.hero-veil{position:absolute;inset:0;background:rgba(10,63,107,.08);border-radius:20px}
.hero-badge{position:absolute;left:16px;bottom:16px;background:rgba(255,255,255,.94);color:var(--brand-900);font-size:13px;font-weight:600;padding:7px 14px;border-radius:var(--radius-chip);box-shadow:var(--shadow-1)}
@media (max-width:991.98px){
  .hero{padding:48px 0 56px}
  .hero-stats{gap:26px;padding-top:20px}
  .hero-visual{margin-top:8px}
}

/* ---------- 信任横条 ---------- */
.trust{padding:28px 0;background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.trust-row{display:flex;flex-wrap:wrap;gap:14px 40px;align-items:center;justify-content:space-between}
.trust-item{display:flex;align-items:center;gap:9px;color:var(--ink-600);font-size:14px}
.trust-item svg{color:var(--ink-400);flex-shrink:0}
@media (max-width:767.98px){.trust-row{gap:12px 24px;justify-content:flex-start}.trust-item{font-size:13px}}

/* ---------- 优惠阶梯 ---------- */
.ladder{position:relative;padding-right:0}
.ladder::before{content:"";position:absolute;right:0;top:8px;bottom:8px;width:1px;background:var(--line)}
.ladder-row{display:flex;align-items:center;gap:28px;padding:26px 32px 26px 0;border-bottom:1px solid var(--line);transition:background .2s ease}
.ladder-row:last-child{border-bottom:0}
.ladder-row:hover{background:var(--brand-050)}
.ladder-row:nth-child(2){margin-left:24px}
.ladder-row:nth-child(3){margin-left:48px}
.ladder-row:nth-child(4){margin-left:72px}
.ladder-no{font-size:40px;font-weight:700;color:var(--brand-700);opacity:.22;line-height:1;font-variant-numeric:tabular-nums;flex-shrink:0;min-width:64px}
.ladder-body{flex:1 1 auto;min-width:0}
.ladder-body h3{margin-bottom:8px}
.ladder-body p{margin:0;color:var(--ink-600);font-size:14px}
.ladder-side{flex-shrink:0}
@media (max-width:991.98px){
  .ladder::before{display:none}
  .ladder-row,.ladder-row:nth-child(2),.ladder-row:nth-child(3),.ladder-row:nth-child(4){margin-left:0;padding-right:0;flex-wrap:wrap;gap:14px}
  .ladder-no{font-size:32px;min-width:48px}
  .ladder-side{width:100%}
}

/* ---------- 对比表 ---------- */
.cmp-wrap{border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:var(--surface);box-shadow:var(--shadow-1)}
.cmp-table{width:100%;border-collapse:separate;border-spacing:0}
.cmp-table th,.cmp-table td{padding:16px 18px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--line);vertical-align:middle}
.cmp-table thead th{background:var(--brand-050);color:var(--ink-900);font-weight:600;font-size:14px;white-space:nowrap}
.cmp-table tbody tr{transition:background .18s ease}
.cmp-table tbody tr:hover{background:var(--brand-050)}
.cmp-table tbody tr:last-child td{border-bottom:0}
.cmp-table td:first-child{font-weight:600;color:var(--brand-900);white-space:nowrap}
.cmp-table .col-best{background:rgba(231,241,250,.55)}
.cmp-table thead th.col-best{background:var(--brand-100);position:relative;color:var(--brand-700)}
.cmp-table thead th.col-best::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--brand-700)}
.mini-badge{display:inline-block;background:var(--brand-700);color:#fff;font-size:11px;font-weight:600;padding:1px 8px;border-radius:var(--radius-chip);margin-left:6px;vertical-align:middle}
.ok{color:var(--mint-500);font-weight:700}
.no{color:var(--ink-400)}
.cmp-note{margin-top:16px;font-size:13px;color:var(--ink-400);margin-bottom:0}
@media (max-width:767.98px){
  .cmp-wrap{border:0;box-shadow:none;background:transparent;overflow:visible}
  .cmp-table,.cmp-table tbody,.cmp-table tr,.cmp-table td{display:block;width:100%}
  .cmp-table thead{display:none}
  .cmp-table tr{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);padding:16px;margin-bottom:16px}
  .cmp-table td{border:0;padding:7px 0;display:flex;gap:12px;align-items:flex-start}
  .cmp-table td::before{content:attr(data-label);flex:0 0 92px;color:var(--ink-400);font-size:13px;line-height:1.7}
  .cmp-table td:first-child{font-size:18px;font-weight:700;color:var(--brand-900);padding-bottom:10px;border-bottom:1px dashed var(--line);margin-bottom:8px}
  .cmp-table td:first-child::before{display:none}
  .cmp-table .col-best{background:transparent}
}

/* ---------- 限时条 ---------- */
.limit-bar{display:flex;align-items:center;gap:24px;background:var(--brand-050);border:1px solid var(--line);border-radius:var(--radius-card);padding:20px 28px;box-shadow:var(--shadow-1)}
.pulse{width:10px;height:10px;border-radius:50%;background:var(--hot-500);position:relative;flex-shrink:0}
.pulse::after{content:"";position:absolute;inset:-6px;border-radius:50%;border:1px solid var(--hot-500);opacity:.5;animation:pulse 1.8s ease-out infinite}
@keyframes pulse{0%{transform:scale(.7);opacity:.7}100%{transform:scale(1.35);opacity:0}}
.limit-text{flex:1 1 auto;min-width:0}
.limit-text strong{display:block;font-size:17px;color:var(--brand-900)}
.limit-text span{font-size:13.5px;color:var(--ink-600)}
.countdown{display:flex;align-items:center;flex-shrink:0}
.cd-cell{display:flex;flex-direction:column;align-items:center;padding:0 14px;border-left:1px solid var(--line);min-width:64px}
.cd-cell b{font-size:24px;font-weight:700;color:var(--brand-900);line-height:1.15;font-variant-numeric:tabular-nums}
.cd-cell i{font-style:normal;font-size:12px;color:var(--ink-400)}
@media (max-width:767.98px){
  .limit-bar{flex-direction:column;align-items:stretch;gap:16px;padding:20px}
  .countdown{justify-content:space-between}
  .cd-cell{border-left:0;border-top:1px solid var(--line);padding:10px 0 0;flex:1;min-width:0;margin-right:8px}
  .cd-cell:last-child{margin-right:0}
}

/* ---------- 资讯列表 ---------- */
.news-card{padding:24px;height:100%;display:flex;flex-direction:column;gap:12px}
.news-title{margin:0;font-size:18px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:54px}
.news-sum{margin:0;font-size:14px;line-height:1.75;color:var(--ink-600);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:49px}
.news-meta{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-400)}
.news-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--ink-400)}
.news-meta .arrow{margin-left:auto;color:var(--brand-600);font-weight:700;transition:transform .2s ease}
.news-card:hover .news-meta .arrow{transform:translateX(3px)}
.empty-state{border:1px dashed var(--line);border-radius:var(--radius-card);background:var(--surface);padding:56px 24px;text-align:center}
.empty-state svg{color:var(--ink-400);margin-bottom:14px}
.empty-state p{color:var(--ink-600);margin-bottom:18px}

/* ---------- 分类导航区 ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.cat-card{position:relative;overflow:hidden;border-radius:var(--radius-card);border:1px solid var(--line);box-shadow:var(--shadow-1);background:var(--surface);display:block;color:inherit;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.cat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-100);color:inherit;text-decoration:none}
.cat-card img{width:100%;height:220px;object-fit:cover}
.cat-card.big img{height:300px}
.cat-body{padding:24px}
.cat-body h3{margin-bottom:10px}
.cat-body p{margin:0 0 16px;font-size:14.5px;color:var(--ink-600)}
.cat-more{display:inline-flex;align-items:center;gap:6px;color:var(--brand-700);font-weight:600;font-size:14px}
.cat-card:hover .arw{transform:translateX(3px)}
.cat-grid .cat-card:nth-child(3),.cat-grid .cat-card:nth-child(4){grid-column:span 1}
.cat-grid .cat-card:nth-child(1){grid-column:span 1}
@media (min-width:992px){
  .cat-grid{grid-template-columns:repeat(12,1fr)}
  .cat-grid .cat-card:nth-child(1){grid-column:span 7}
  .cat-grid .cat-card:nth-child(2){grid-column:span 5}
  .cat-grid .cat-card:nth-child(3){grid-column:span 5}
  .cat-grid .cat-card:nth-child(4){grid-column:span 7}
  .cat-grid .cat-card:nth-child(1) img{height:280px}
  .cat-grid .cat-card:nth-child(2) img{height:200px}
  .cat-grid .cat-card:nth-child(3) img{height:200px}
  .cat-grid .cat-card:nth-child(4) img{height:280px}
}
@media (max-width:575.98px){
  .cat-grid{grid-template-columns:1fr}
  .cat-card img,.cat-card.big img{height:190px}
}

/* ---------- 服务优势交错图文 ---------- */
.feat-row{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center;margin-bottom:72px}
.feat-row:last-child{margin-bottom:0}
.feat-row.rev .feat-media{order:2}
.feat-row.rev .feat-text{order:1}
.feat-media{position:relative}
.feat-media img{width:100%;border-radius:var(--radius-card);aspect-ratio:4/3;object-fit:cover;box-shadow:var(--shadow-1);position:relative;z-index:1}
.feat-media::before{content:"";position:absolute;left:-16px;top:22px;width:120px;height:120px;border-radius:50%;background:var(--brand-100);z-index:0}
.feat-text h3{margin-bottom:14px;font-size:22px}
.feat-text p{color:var(--ink-600)}
.feat-list{margin-top:18px;display:grid;gap:10px}
.feat-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--ink-600)}
.feat-list svg{color:var(--mint-500);flex-shrink:0;margin-top:6px}
@media (max-width:991.98px){
  .feat-row{grid-template-columns:1fr;gap:28px;margin-bottom:56px}
  .feat-row.rev .feat-media{order:0}
  .feat-row.rev .feat-text{order:0}
  .feat-media::before{left:-10px;top:14px;width:90px;height:90px}
}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%;background:transparent;border:0;text-align:left;padding:22px 44px 22px 0;font-size:17px;font-weight:600;color:var(--ink-900);position:relative;cursor:pointer;transition:color .2s ease}
.faq-q:hover{color:var(--brand-700)}
.faq-q .sign{position:absolute;right:6px;top:50%;transform:translateY(-50%);width:22px;height:22px;display:flex;align-items:center;justify-content:center;color:var(--brand-600);transition:transform .2s ease}
.faq-q[aria-expanded="true"]{color:var(--brand-700)}
.faq-q[aria-expanded="true"] .sign{transform:translateY(-50%) rotate(45deg)}
.faq-a{padding:0 44px 22px 0;color:var(--ink-600);font-size:15px;animation:fadeIn .22s ease}
.faq-a p{margin:0;font-size:15px}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* ---------- 表单 ---------- */
.consult{background:var(--surface)}
.consult-left h2{margin-bottom:16px}
.consult-left p{color:var(--ink-600)}
.trust-points{margin-top:24px;display:grid;gap:12px}
.trust-points li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--ink-600)}
.trust-points svg{color:var(--mint-500);flex-shrink:0;margin-top:6px}
.form-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);padding:32px}
.form-label-x{display:block;font-size:14px;font-weight:600;color:var(--ink-900);margin-bottom:8px}
.form-label-x .req{color:var(--hot-500);margin-left:2px}
.input-x{width:100%;border:1px solid var(--line);border-radius:var(--radius-input);padding:11px 14px;font-size:15px;background:var(--surface);transition:border-color .18s ease,box-shadow .18s ease;appearance:none}
.input-x:focus{border-color:var(--brand-700);box-shadow:0 0 0 3px rgba(15,94,156,.12);outline:none}
.input-x::placeholder{color:var(--ink-400)}
.textarea-x{min-height:110px;resize:vertical;line-height:1.75}
.form-row{margin-bottom:20px}
.form-hint{font-size:13px;color:var(--ink-400);margin-top:6px}
.check-row{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--ink-600)}
.check-row input{width:18px;height:18px;margin-top:4px;accent-color:var(--brand-700);flex-shrink:0}
.form-actions{display:flex;justify-content:flex-end}
@media (max-width:767.98px){.form-actions{justify-content:stretch}.form-actions .btn-x{width:100%}.form-card{padding:22px}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.8);padding:64px 0 0;margin-top:0}
.f-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px}
.f-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:20px;position:relative;padding-bottom:12px}
.f-col h4::after{content:"";position:absolute;left:0;bottom:0;width:28px;height:2px;background:var(--brand-600)}
.f-brand{display:flex;align-items:center;gap:10px;color:#fff;margin-bottom:16px}
.f-brand .brand-mark{color:#fff}
.f-brand span{font-size:18px;font-weight:700}
.f-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);margin:0}
.f-links{display:grid;gap:11px}
.f-links a{color:rgba(255,255,255,.72);font-size:14px}
.f-links a:hover{color:#fff;text-decoration:none}
.f-contact{display:grid;gap:14px}
.f-contact li{font-size:14px;color:rgba(255,255,255,.72);line-height:1.7}
.f-contact strong{display:block;color:#fff;font-size:16px;font-weight:600;font-variant-numeric:tabular-nums}
.f-bottom{margin-top:48px;border-top:1px solid rgba(255,255,255,.14);padding:20px 0;display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.6)}
.f-bottom a{color:rgba(255,255,255,.6)}
.f-bottom a:hover{color:#fff}
@media (max-width:991.98px){.f-grid{grid-template-columns:1fr 1fr;gap:32px}}
@media (max-width:575.98px){.f-grid{grid-template-columns:1fr;gap:28px}.site-footer{padding-top:48px}}

/* ---------- 入场动效 ---------- */
html.js .reveal{opacity:0;transform:translateY(16px);transition:opacity .5s ease,transform .5s ease}
html.js .reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html.js .reveal{opacity:1;transform:none;transition:none}
  .pulse::after{animation:none}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --brand-700:#0F5E9C;
  --brand-600:#1673BE;
  --brand-900:#0A3F6B;
  --brand-100:#E7F1FA;
  --brand-050:#F4F9FD;
  --mint-500:#16B39A;
  --hot-500:#FF7A2F;
  --ink-900:#14202B;
  --ink-600:#4A5A6A;
  --ink-400:#8A98A6;
  --line:#E4EAF1;
  --bg:#F6F8FB;
  --surface:#FFFFFF;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-chip:999px;
  --radius-input:10px;
  --shadow-1:0 1px 2px rgba(16,42,67,.06),0 6px 18px rgba(16,42,67,.05);
  --shadow-2:0 4px 10px rgba(16,42,67,.08),0 16px 36px rgba(16,42,67,.10);
  --gap-sec:88px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-900);
  background:var(--bg);
  text-align:left;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease,background-color .2s ease;}
a:hover{color:var(--brand-700);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink-900);}
p{margin:0 0 1.25em;}
ul,ol{margin:0;padding:0;list-style:none;}
.num,.tabular{font-variant-numeric:tabular-nums;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}
:focus-visible{outline:2px solid var(--brand-700);outline-offset:2px;border-radius:4px;}

/* ---------- 按钮 ---------- */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--radius-btn);font-weight:600;font-size:15px;
  border:1px solid transparent;cursor:pointer;line-height:1.4;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-brand{background:var(--brand-700);color:#fff;box-shadow:var(--shadow-1);}
.btn-brand:hover{background:var(--brand-900);color:#fff;transform:translateY(-1px);}
.btn-brand:active{transform:none;}
.btn-ghost{background:#fff;color:var(--brand-700);border-color:var(--brand-700);}
.btn-ghost:hover{background:var(--brand-050);color:var(--brand-700);}
.btn-hot{background:var(--hot-500);color:#fff;}
.btn-hot:hover{background:#F06A1C;color:#fff;}
.btn-sm-x{padding:9px 18px;font-size:14px;}
.btn-block-x{width:100%;}
.link-more{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--brand-700);font-size:15px;}
.link-more svg{transition:transform .2s ease;}
.link-more:hover svg{transform:translateX(2px);}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1);}
.hdr-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:14px 0;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--brand-700);font-weight:700;font-size:20px;letter-spacing:-.01em;}
.brand:hover{color:var(--brand-900);}
.brand-mark{display:inline-flex;color:var(--brand-700);}
.brand-text{white-space:nowrap;}
.seg-nav{flex:1;display:flex;justify-content:center;}
.seg-wrap{display:flex;align-items:center;gap:4px;background:var(--brand-050);border:1px solid var(--line);border-radius:var(--radius-chip);padding:4px;}
.chip{
  display:inline-block;padding:8px 18px;border-radius:var(--radius-chip);
  font-size:14px;font-weight:500;color:var(--ink-600);white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,box-shadow .2s ease;
}
.chip:hover{background:#fff;color:var(--brand-700);}
.chip.active{background:var(--brand-100);color:var(--brand-700);font-weight:600;box-shadow:inset 0 0 0 1px rgba(15,94,156,.18);}
.hdr-actions{display:flex;align-items:center;gap:12px;}
.btn-hdr{white-space:nowrap;}
.icon-btn{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:#fff;
  display:inline-flex;align-items:center;justify-content:center;color:var(--ink-600);cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.icon-btn:hover{background:var(--brand-050);color:var(--brand-700);border-color:var(--brand-100);}

/* ---------- 阅读进度 ---------- */
.read-progress{position:fixed;top:0;left:0;height:3px;width:0;background:var(--brand-600);z-index:1040;transition:width .1s linear;}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line);}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-400);padding:14px 0;}
.crumb a{color:var(--ink-600);}
.crumb a:hover{color:var(--brand-700);}
.crumb .sep{color:#C3CDD8;}
.crumb .cur{color:var(--ink-400);}

/* ---------- 文章头 ---------- */
.article-hero{background:#fff;padding:40px 0 32px;border-bottom:1px solid var(--line);}
.article-hero h1{
  font-size:clamp(28px,3.6vw,42px);line-height:1.28;font-weight:700;letter-spacing:-.01em;
  max-width:900px;margin-bottom:20px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;font-size:14px;color:var(--ink-400);}
.meta-row .meta-item{display:inline-flex;align-items:center;gap:6px;}
.cat-chip{display:inline-block;padding:4px 14px;border-radius:var(--radius-chip);background:var(--brand-100);color:var(--brand-700);font-size:13px;font-weight:600;}
.rule-line{height:1px;background:var(--line);margin-top:24px;}

/* ---------- 封面 ---------- */
.cover-wrap{padding:32px 0 0;}
.cover-wrap img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius-card);border:1px solid var(--line);}

/* ---------- 主体布局 ---------- */
.article-main{padding:48px 0 var(--gap-sec);}
.layout-grid{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:24px;align-items:start;}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);padding:32px;}
.body-panel{padding:40px 40px 32px;}

/* ---------- 正文排版 ---------- */
.article-content{font-size:16px;line-height:1.9;color:var(--ink-900);max-width:720px;}
.article-content p{margin:0 0 1.25em;}
.article-content h2{
  font-size:clamp(22px,2.4vw,28px);line-height:1.45;font-weight:700;
  border-left:4px solid var(--brand-700);padding-left:16px;
  margin:2em 0 .9em;
}
.article-content h3{font-size:20px;line-height:1.5;font-weight:600;margin:1.6em 0 .7em;color:var(--brand-900);}
.article-content h4{font-size:17px;font-weight:600;margin:1.4em 0 .6em;}
.article-content ul,.article-content ol{margin:0 0 1.25em;padding-left:22px;}
.article-content ul li{position:relative;padding-left:16px;margin-bottom:8px;list-style:none;}
.article-content ul li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--brand-600);}
.article-content ol{list-style:decimal;padding-left:26px;}
.article-content ol li{margin-bottom:8px;}
.article-content blockquote{
  margin:1.4em 0;padding:18px 22px;background:var(--brand-050);
  border-left:4px solid var(--brand-700);border-radius:0 var(--radius-card) var(--radius-card) 0;color:var(--ink-600);
}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content img{border-radius:var(--radius-card);border:1px solid var(--line);margin:1.4em 0;width:100%;}
.article-content figure{margin:1.4em 0;}
.article-content figcaption{font-size:13px;color:var(--ink-400);text-align:center;margin-top:8px;}
.article-content a{color:var(--brand-600);border-bottom:1px solid rgba(22,115,190,.35);}
.article-content a:hover{color:var(--brand-900);border-bottom-color:var(--brand-900);}
.article-content table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:15px;display:block;overflow-x:auto;}
.article-content th,.article-content td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article-content th{background:var(--brand-050);font-weight:600;}
.article-content code{background:var(--brand-050);padding:2px 6px;border-radius:6px;font-size:14px;color:var(--brand-900);}
.article-content hr{border:0;border-top:1px solid var(--line);margin:2em 0;}

/* ---------- 空态 ---------- */
.art-empty{
  border:1px dashed #C7D6E3;border-radius:var(--radius-card);background:var(--brand-050);
  padding:56px 24px;text-align:center;
}
.art-empty .ico{color:var(--brand-600);margin-bottom:14px;}
.art-empty h2{font-size:22px;border:0;padding:0;margin:0 0 10px;}
.art-empty p{color:var(--ink-600);font-size:15px;margin:0 0 22px;}

/* ---------- 标签 + 操作 ---------- */
.tagbar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;margin-top:36px;padding-top:24px;border-top:1px solid var(--line);}
.tag-list{display:flex;flex-wrap:wrap;gap:8px;}
.tag-chip{display:inline-block;padding:6px 14px;border-radius:var(--radius-chip);background:var(--brand-050);border:1px solid var(--line);font-size:13px;color:var(--ink-600);}
.tag-chip:hover{background:var(--brand-100);color:var(--brand-700);border-color:var(--brand-100);}
.act-list{display:flex;gap:10px;}
.act-btn{
  display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:var(--radius-btn);
  border:1px solid var(--line);background:#fff;color:var(--ink-600);font-size:13px;cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.act-btn:hover{background:var(--brand-050);color:var(--brand-700);border-color:var(--brand-100);}

/* ---------- 侧栏 ---------- */
.side-col{display:flex;flex-direction:column;gap:24px;position:sticky;top:96px;}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);padding:22px;transition:box-shadow .2s ease,border-color .2s ease,transform .2s ease;}
.side-card:hover{border-color:var(--brand-100);box-shadow:var(--shadow-2);}
.side-title{font-size:15px;font-weight:600;padding-bottom:10px;border-bottom:2px solid var(--brand-600);display:inline-block;margin-bottom:16px;}
.toc-list li{margin-bottom:2px;}
.toc-list a{display:block;font-size:14px;color:var(--ink-600);padding:7px 10px;border-radius:8px;border-left:2px solid transparent;line-height:1.6;}
.toc-list a:hover{background:var(--brand-050);color:var(--brand-700);}
.toc-list a.is-active{background:var(--brand-050);color:var(--brand-700);border-left-color:var(--brand-700);font-weight:600;}
.toc-list .lvl3 a{padding-left:22px;font-size:13px;color:var(--ink-400);}
.hot-item{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--line);}
.hot-item:last-child{border-bottom:0;padding-bottom:0;}
.hot-item img{width:72px;height:54px;object-fit:cover;border-radius:10px;flex:0 0 72px;border:1px solid var(--line);}
.hot-item .ht{font-size:14px;font-weight:600;line-height:1.5;color:var(--ink-900);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.hot-item:hover .ht{color:var(--brand-700);}
.hot-item .hm{font-size:12px;color:var(--ink-400);margin-top:4px;}
.side-cta{background:linear-gradient(180deg,var(--brand-050),#fff);}
.side-cta h3{font-size:17px;font-weight:700;margin-bottom:10px;}
.side-cta p{font-size:14px;color:var(--ink-600);line-height:1.75;margin-bottom:16px;}
.side-check li{display:flex;gap:8px;align-items:flex-start;font-size:13px;color:var(--ink-600);margin-bottom:8px;}
.side-check svg{flex:0 0 16px;margin-top:5px;color:var(--mint-500);}

/* ---------- 双卡 / 相关推荐 ---------- */
.sec-block{margin-top:64px;}
.sec-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:24px;}
.sec-head h2{font-size:clamp(22px,2.4vw,28px);font-weight:700;border-left:4px solid var(--brand-700);padding-left:16px;line-height:1.4;}
.pager-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.pager-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.pager-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-100);}
.pager-card .plabel{font-size:12px;letter-spacing:.08em;color:var(--ink-400);text-transform:uppercase;}
.pager-card .ptitle{font-size:17px;font-weight:600;color:var(--ink-900);margin:10px 0 8px;}
.pager-card p{font-size:14px;color:var(--ink-600);margin:0;line-height:1.75;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rel-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-100);}
.rel-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.rel-card .rc-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rel-card .rc-tag{align-self:flex-start;padding:3px 12px;border-radius:var(--radius-chip);background:var(--brand-100);color:var(--brand-700);font-size:12px;font-weight:600;}
.rel-card h3{font-size:17px;font-weight:600;line-height:1.55;}
.rel-card p{font-size:14px;color:var(--ink-600);margin:0;line-height:1.75;}
.rel-card .rc-meta{margin-top:auto;font-size:13px;color:var(--ink-400);padding-top:12px;border-top:1px solid var(--line);}
.back-row{margin-top:32px;}

/* ---------- 底部咨询条 ---------- */
.consult-strip{
  margin-top:64px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:28px 32px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.consult-strip .cs-text strong{display:block;font-size:19px;font-weight:700;margin-bottom:6px;}
.consult-strip .cs-text span{font-size:14px;color:var(--ink-600);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.8);padding:56px 0 0;margin-top:var(--gap-sec);}
.f-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;}
.f-col h4{font-size:15px;font-weight:600;color:#fff;padding-bottom:12px;margin-bottom:16px;position:relative;}
.f-col h4::after{content:"";position:absolute;left:0;bottom:0;width:28px;height:2px;background:var(--brand-600);border-radius:2px;}
.f-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px;margin-bottom:14px;}
.f-brand .brand-mark{color:#fff;}
.f-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);margin:0;}
.f-links li,.f-contact li{font-size:14px;line-height:1.8;margin-bottom:10px;color:rgba(255,255,255,.72);}
.f-links a{color:rgba(255,255,255,.72);}
.f-links a:hover{color:#fff;}
.f-contact strong{display:block;color:#fff;font-size:17px;font-weight:700;margin-bottom:2px;}
.f-bottom{
  margin-top:40px;padding:20px 0;border-top:1px solid rgba(255,255,255,.15);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- 入场动画 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s ease,transform .5s ease;}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  :root{--gap-sec:72px;}
}
@media (max-width:991.98px){
  :root{--gap-sec:64px;}
  .hdr-inner{flex-wrap:wrap;padding:12px 0;gap:12px;}
  .seg-nav{order:3;width:100%;justify-content:flex-start;}
  .seg-wrap{width:100%;overflow-x:auto;flex-wrap:nowrap;justify-content:flex-start;-ms-overflow-style:none;scrollbar-width:none;}
  .seg-wrap::-webkit-scrollbar{display:none;}
  .layout-grid{grid-template-columns:minmax(0,1fr);}
  .side-col{position:static;top:auto;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .f-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767.98px){
  :root{--gap-sec:56px;}
  body{font-size:15px;}
  .container{padding-left:16px;padding-right:16px;}
  .brand{font-size:18px;}
  .body-panel{padding:24px 20px;}
  .article-hero{padding:28px 0 22px;}
  .pager-grid{grid-template-columns:minmax(0,1fr);}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .consult-strip{padding:22px;flex-direction:column;align-items:flex-start;}
  .consult-strip .btn-x{width:100%;}
  .tagbar{flex-direction:column;align-items:flex-start;}
  .f-grid{grid-template-columns:1fr;}
  .f-bottom{flex-direction:column;gap:6px;}
}
@media (max-width:575.98px){
  .hdr-actions .icon-btn{display:none;}
  .btn-hdr{padding:8px 14px;font-size:13px;}
  .panel{padding:22px 18px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category1 */
:root{
  --brand-700:#0F5E9C;
  --brand-600:#1673BE;
  --brand-900:#0A3F6B;
  --brand-100:#E7F1FA;
  --brand-050:#F4F9FD;
  --mint-500:#16B39A;
  --hot-500:#FF7A2F;
  --ink-900:#14202B;
  --ink-600:#4A5A6A;
  --ink-400:#8A98A6;
  --line:#E4EAF1;
  --bg:#F6F8FB;
  --surface:#FFFFFF;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-chip:999px;
  --radius-input:10px;
  --shadow-1:0 1px 2px rgba(16,42,67,.06), 0 6px 18px rgba(16,42,67,.05);
  --shadow-2:0 4px 10px rgba(16,42,67,.08), 0 16px 36px rgba(16,42,67,.10);
  --ease:200ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-900);
  background:var(--bg);
  text-align:left;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-600);text-decoration:none;transition:color var(--ease),background var(--ease),border-color var(--ease)}
a:hover{color:var(--brand-700)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5{margin:0;color:var(--ink-900);font-weight:700}
p{margin:0 0 1.25em}
p:last-child{margin-bottom:0}
button,input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--brand-700);outline-offset:2px}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.num{font-variant-numeric:tabular-nums}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease);
}
.site-header.is-stuck{box-shadow:var(--shadow-1)}
.hdr-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:72px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--brand-900);
  font-weight:700;
  font-size:20px;
  letter-spacing:-.01em;
  white-space:nowrap;
  flex:0 0 auto;
}
.brand:hover{color:var(--brand-700)}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;height:38px;
  border-radius:12px;
  background:var(--brand-050);
  color:var(--brand-700);
  border:1px solid var(--brand-100);
}
.seg-nav{flex:1 1 auto;display:flex;justify-content:center;min-width:0}
.seg-wrap{
  display:flex;
  align-items:center;
  gap:2px;
  padding:4px;
  background:var(--brand-050);
  border:1px solid var(--line);
  border-radius:var(--radius-chip);
  overflow-x:auto;
  scrollbar-width:none;
  max-width:100%;
}
.seg-wrap::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;
  align-items:center;
  padding:8px 18px;
  border-radius:var(--radius-chip);
  font-size:14px;
  font-weight:500;
  color:var(--ink-600);
  background:transparent;
  white-space:nowrap;
  transition:background var(--ease),color var(--ease),box-shadow var(--ease);
}
.chip:hover{background:var(--brand-100);color:var(--brand-700)}
.chip.active{
  background:var(--brand-100);
  color:var(--brand-700);
  font-weight:600;
  box-shadow:inset 0 0 0 1px rgba(15,94,156,.22);
}
.hdr-actions{display:flex;align-items:center;gap:12px;margin-left:24px;flex:0 0 auto}
.btn-x{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--radius-btn);
  font-weight:600;
  font-size:15px;
  padding:12px 24px;
  border:1px solid transparent;
  cursor:pointer;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
  text-align:center;
}
.btn-brand{background:var(--brand-700);color:#fff;border-color:var(--brand-700)}
.btn-brand:hover{background:var(--brand-900);border-color:var(--brand-900);color:#fff;transform:translateY(-1px)}
.btn-brand:active{transform:none;background:var(--brand-900)}
.btn-ghost{background:#fff;color:var(--brand-700);border-color:var(--brand-700)}
.btn-ghost:hover{background:var(--brand-050);color:var(--brand-700)}
.btn-ghost:active{transform:none}
.btn-sm-x{padding:10px 18px;font-size:14px}
.btn-lg-x{padding:14px 30px;font-size:16px}
.btn-block-x{width:100%}
.icon-btn{
  width:40px;height:40px;
  border-radius:50%;
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink-600);
  display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.icon-btn:hover{background:var(--brand-050);color:var(--brand-700);border-color:var(--brand-100)}

/* ============ 面包屑 ============ */
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--ink-400);
  padding:20px 0 0;
}
.crumb a{color:var(--ink-600)}
.crumb a:hover{color:var(--brand-700)}
.crumb .sep{color:var(--ink-400)}
.crumb .cur{color:var(--ink-400)}

/* ============ 分类页 Banner ============ */
.cat-hero{
  position:relative;
  margin-top:20px;
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--line);
  background:
    linear-gradient(100deg, rgba(255,255,255,.96) 0%, rgba(255,255,255,.90) 46%, rgba(231,241,250,.72) 100%),
    url("/assets/images/backpic/back-1.png") center/cover no-repeat;
  box-shadow:var(--shadow-1);
}
.cat-hero::after{
  content:"";
  position:absolute;
  right:-70px;bottom:-90px;
  width:320px;height:320px;
  border-radius:50%;
  border:1px solid var(--brand-100);
  pointer-events:none;
}
.cat-hero-inner{
  position:relative;
  z-index:1;
  padding:52px 48px 46px;
  max-width:820px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;
  border-radius:var(--radius-chip);
  background:var(--brand-100);
  color:var(--brand-700);
  font-size:13px;
  font-weight:600;
  margin-bottom:18px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--hot-500)}
.cat-hero h1{
  font-size:clamp(30px,4vw,44px);
  line-height:1.25;
  letter-spacing:-.01em;
  margin-bottom:16px;
}
.cat-hero .sub{
  font-size:16px;
  line-height:1.85;
  color:var(--ink-600);
  max-width:660px;
  margin-bottom:26px;
}
.cat-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.stat-row{
  display:flex;flex-wrap:wrap;gap:40px;
  padding-top:26px;
  border-top:1px solid var(--line);
}
.stat-item .stat-num{
  font-size:24px;font-weight:700;color:var(--brand-700);line-height:1.2;
  font-variant-numeric:tabular-nums;
}
.stat-item .stat-txt{font-size:13px;color:var(--ink-400);margin-top:2px}

/* ============ 主布局 ============ */
.cat-layout{
  display:grid;
  grid-template-columns:260px minmax(0,1fr);
  gap:48px;
  padding:56px 0 0;
  align-items:start;
}
.toc-side{
  position:sticky;
  top:96px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:24px 20px;
}
.toc-side h2{
  font-size:15px;
  font-weight:700;
  padding-left:12px;
  border-left:3px solid var(--brand-700);
  margin-bottom:16px;
}
.toc-list li + li{margin-top:4px}
.toc-list a{
  display:block;
  padding:9px 12px;
  border-radius:var(--radius-btn);
  font-size:14px;
  color:var(--ink-600);
  transition:background var(--ease),color var(--ease);
}
.toc-list a:hover{background:var(--brand-050);color:var(--brand-700)}
.toc-list a.is-on{background:var(--brand-100);color:var(--brand-700);font-weight:600}
.toc-cta{
  margin-top:20px;
  padding-top:20px;
  border-top:1px solid var(--line);
}
.toc-cta p{font-size:13px;color:var(--ink-400);line-height:1.75;margin-bottom:12px}

/* ============ 分节 ============ */
.sec-head{max-width:760px}
.sec-title{
  font-size:clamp(24px,2.6vw,32px);
  line-height:1.35;
  padding-left:16px;
  border-left:4px solid var(--brand-700);
  margin-bottom:24px;
}
.sec-desc{color:var(--ink-600);margin-bottom:8px}
.sub-title{
  font-size:20px;
  font-weight:600;
  line-height:1.5;
  margin-bottom:12px;
}
.cat-body > .block + .block{margin-top:64px}
.block{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:32px;
  transition:box-shadow var(--ease),border-color var(--ease),transform var(--ease);
}
.block:hover{box-shadow:var(--shadow-2);border-color:var(--brand-100);transform:translateY(-2px)}
.block-grid{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:32px;
  align-items:center;
}
.block-grid.rev .blk-media{order:2}
.block-grid.rev .blk-text{order:1}
.blk-media{
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--brand-050);
  aspect-ratio:4/3;
}
.blk-media img{width:100%;height:100%;object-fit:cover;transition:transform 300ms ease}
.block:hover .blk-media img{transform:scale(1.03)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.tag{
  display:inline-flex;align-items:center;
  padding:5px 12px;
  border-radius:var(--radius-chip);
  font-size:13px;
  background:var(--brand-050);
  color:var(--brand-700);
  border:1px solid var(--brand-100);
}
.tag.mint{color:#0E7F6E;background:#E9F8F5;border-color:#C9EDE6}
.blk-text p{color:var(--ink-600);font-size:15px}
.spec-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:12px;
  margin-top:20px;
}
.spec{
  background:var(--brand-050);
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  padding:12px 14px;
}
.spec .k{font-size:12px;color:var(--ink-400);display:block;line-height:1.6}
.spec .v{font-size:15px;font-weight:600;color:var(--brand-900);font-variant-numeric:tabular-nums}

/* ============ 适用场景 ============ */
.sec{padding:88px 0 0}
.scene-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
  margin-top:32px;
}
.scene-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:26px 24px;
  transition:box-shadow var(--ease),transform var(--ease),border-color var(--ease);
}
.scene-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:var(--brand-100)}
.scene-icon{
  width:44px;height:44px;border-radius:12px;
  background:var(--brand-100);color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:16px;
}
.scene-card h3{font-size:18px;margin-bottom:8px}
.scene-card p{font-size:14px;color:var(--ink-600);line-height:1.75;margin:0}

/* ============ 流程 ============ */
.flow{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
  margin-top:32px;
  counter-reset:flow;
}
.flow-item{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:26px 22px;
}
.flow-item::before{
  counter-increment:flow;
  content:"0" counter(flow);
  display:block;
  font-size:22px;
  font-weight:700;
  color:var(--brand-700);
  margin-bottom:12px;
  font-variant-numeric:tabular-nums;
}
.flow-item h3{font-size:17px;margin-bottom:8px}
.flow-item p{font-size:14px;color:var(--ink-600);line-height:1.75;margin:0}

/* ============ FAQ ============ */
.faq-x{
  margin-top:32px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:8px 28px;
}
.faq-x .accordion-item{
  background:transparent;
  border:0;
  border-bottom:1px solid var(--line);
}
.faq-x .accordion-item:last-child{border-bottom:0}
.faq-x .accordion-button{
  position:relative;
  background:transparent;
  box-shadow:none;
  color:var(--ink-900);
  font-size:16px;
  font-weight:600;
  padding:20px 48px 20px 0;
  line-height:1.6;
  transition:color var(--ease);
}
.faq-x .accordion-button:not(.collapsed){color:var(--brand-700)}
.faq-x .accordion-button::after{
  content:"";
  position:absolute;
  right:23px;top:50%;
  width:2px;height:12px;
  background:currentColor;
  transform:translateY(-50%);
  transition:transform var(--ease);
  background-image:none;
  border-radius:2px;
}
.faq-x .accordion-button::before{
  content:"";
  position:absolute;
  right:18px;top:50%;
  width:12px;height:2px;
  background:currentColor;
  transform:translateY(-50%);
  border-radius:2px;
}
.faq-x .accordion-button:not(.collapsed)::after{transform:translateY(-50%) rotate(90deg)}
.faq-x .accordion-button:focus{box-shadow:none;outline:2px solid var(--brand-700);outline-offset:-2px}
.faq-x .accordion-body{
  padding:0 0 22px;
  font-size:15px;
  color:var(--ink-600);
  line-height:1.85;
  max-width:820px;
}

/* ============ CTA + 表单 ============ */
.cta-wrap{padding:88px 0 0}
.cta-card{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:0;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
}
.cta-left{
  background:linear-gradient(160deg,var(--brand-900) 0%,var(--brand-700) 100%);
  color:#fff;
  padding:40px 34px;
}
.cta-left h2{color:#fff;font-size:26px;line-height:1.35;margin-bottom:14px}
.cta-left p{color:rgba(255,255,255,.82);font-size:15px;line-height:1.8}
.trust-list{margin-top:24px}
.trust-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14px;color:rgba(255,255,255,.9);
  line-height:1.7;
}
.trust-list li + li{margin-top:10px}
.trust-list svg{flex:0 0 auto;margin-top:4px;color:#5FE0C8}
.cta-right{padding:36px 34px}
.form-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px;
}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1/-1}
.field label{font-size:14px;font-weight:600;color:var(--ink-900)}
.field .req{color:var(--hot-500)}
.field input,.field select,.field textarea{
  width:100%;
  padding:12px 14px;
  border:1px solid var(--line);
  border-radius:var(--radius-input);
  background:#fff;
  color:var(--ink-900);
  font-size:15px;
  line-height:1.5;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field textarea{min-height:104px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-400)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--brand-700);
  box-shadow:0 0 0 3px rgba(15,94,156,.14);
}
.check-line{
  display:flex;gap:10px;align-items:flex-start;
  font-size:13px;color:var(--ink-600);line-height:1.7;
}
.check-line input{width:16px;height:16px;margin-top:4px;accent-color:var(--brand-700)}
.form-foot{
  grid-column:1/-1;
  display:flex;align-items:center;justify-content:flex-end;
  gap:16px;flex-wrap:wrap;
  margin-top:4px;
}
.form-note{font-size:13px;color:var(--ink-400)}
.form-msg{
  grid-column:1/-1;
  display:none;
  border-radius:var(--radius-btn);
  padding:12px 16px;
  font-size:14px;
  background:#E9F8F5;
  color:#0E7F6E;
  border:1px solid #C9EDE6;
}
.form-msg.show{display:block}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:88px;
  background:var(--brand-900);
  color:rgba(255,255,255,.8);
  font-size:14px;
  line-height:1.8;
}
.f-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
  padding:56px 0 40px;
}
.f-brand{
  display:flex;align-items:center;gap:10px;
  color:#fff;font-size:18px;font-weight:700;margin-bottom:16px;
}
.f-brand .brand-mark{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.16)}
.f-col h4{
  color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;
  padding-bottom:8px;position:relative;
}
.f-col h4::after{
  content:"";position:absolute;left:0;bottom:0;width:28px;height:2px;background:var(--brand-600);
}
.f-links li + li{margin-top:8px}
.f-links a,.f-contact li{color:rgba(255,255,255,.72)}
.f-contact li{font-size:13.5px}
.f-links a:hover{color:#fff}
.f-contact li + li{margin-top:8px}
.f-contact .num{color:#fff;font-size:18px;display:block;line-height:1.4}
.f-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  border-top:1px solid rgba(255,255,255,.14);
  padding:20px 0 28px;
  font-size:13px;
  color:rgba(255,255,255,.6);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .cat-layout{grid-template-columns:220px minmax(0,1fr);gap:32px}
}
@media (max-width:991.98px){
  .hdr-inner{flex-wrap:wrap;gap:12px;padding:12px 0}
  .seg-nav{order:3;width:100%;justify-content:flex-start;flex:0 0 100%}
  .seg-wrap{width:100%;justify-content:flex-start}
  .hdr-actions{margin-left:auto}
  .cat-layout{grid-template-columns:minmax(0,1fr);gap:24px}
  .toc-side{position:static;padding:16px}
  .toc-side h2{margin-bottom:12px}
  .toc-list{display:flex;gap:8px;overflow-x:auto;padding-bottom:6px;scrollbar-width:none}
  .toc-list::-webkit-scrollbar{display:none}
  .toc-list li+li{margin-top:0}
  .toc-list a{white-space:nowrap;background:var(--brand-050)}
  .toc-cta{display:none}
  .block-grid{grid-template-columns:minmax(0,1fr);gap:24px}
  .block-grid.rev .blk-media{order:1}
  .block-grid.rev .blk-text{order:2}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-card{grid-template-columns:minmax(0,1fr)}
  .f-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
  .cat-hero-inner{padding:40px 32px 36px}
  .sec,.cta-wrap{padding-top:64px}
  .site-footer{margin-top:64px}
}
@media (max-width:767.98px){
  .container{padding:0 16px}
  .brand{font-size:18px}
  .cat-hero-inner{padding:32px 22px 30px}
  .cat-hero-actions{gap:10px}
  .cat-hero-actions .btn-x{width:100%}
  .stat-row{gap:24px}
  .block{padding:22px 18px}
  .spec-grid{grid-template-columns:minmax(0,1fr)}
  .scene-grid{grid-template-columns:minmax(0,1fr)}
  .flow{grid-template-columns:minmax(0,1fr)}
  .faq-x{padding:4px 18px}
  .form-grid{grid-template-columns:minmax(0,1fr)}
  .cta-left,.cta-right{padding:28px 22px}
  .form-foot{justify-content:stretch}
  .form-foot .btn-x{width:100%}
  .f-grid{grid-template-columns:minmax(0,1fr);gap:28px;padding:40px 0 28px}
  .cat-layout{padding-top:36px}
  .sec,.cta-wrap{padding-top:56px}
  .site-footer{margin-top:56px}
  .block + .block{margin-top:40px}
  body{font-size:15px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category2 */
:root{
  --brand-700:#0F5E9C;
  --brand-600:#1673BE;
  --brand-900:#0A3F6B;
  --brand-100:#E7F1FA;
  --brand-050:#F4F9FD;
  --mint-500:#16B39A;
  --hot-500:#FF7A2F;
  --ink-900:#14202B;
  --ink-600:#4A5A6A;
  --ink-400:#8A98A6;
  --line:#E4EAF1;
  --bg:#F6F8FB;
  --surface:#FFFFFF;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-chip:999px;
  --radius-input:10px;
  --shadow-1:0 1px 2px rgba(16,42,67,.06),0 6px 18px rgba(16,42,67,.05);
  --shadow-2:0 4px 10px rgba(16,42,67,.08),0 16px 36px rgba(16,42,67,.10);
  --sec-y:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-600);
  background:var(--bg);
  text-align:left;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-700);}
h1,h2,h3,h4{color:var(--ink-900);margin:0;text-align:left;}
p{margin:0 0 1.25em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--brand-700);outline-offset:2px;}
.container{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}
.num{font-variant-numeric:tabular-nums;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1);}
.hdr-inner{display:flex;align-items:center;gap:24px;min-height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--brand-900);font-weight:700;font-size:20px;letter-spacing:-.01em;}
.brand:hover{color:var(--brand-700);}
.brand-mark{display:inline-flex;color:var(--brand-700);}
.brand-text{white-space:nowrap;}
.seg-nav{flex:1 1 auto;display:flex;justify-content:center;min-width:0;}
.seg-wrap{
  display:inline-flex;align-items:center;gap:4px;
  background:var(--brand-050);border:1px solid var(--line);
  border-radius:var(--radius-chip);padding:4px;
}
.chip{
  display:inline-block;padding:8px 18px;border-radius:var(--radius-chip);
  font-size:15px;font-weight:500;color:var(--ink-600);white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,box-shadow .2s ease;
}
.chip:hover{background:var(--surface);color:var(--brand-700);}
.chip.active{background:var(--brand-100);color:var(--brand-700);font-weight:600;box-shadow:inset 0 0 0 1px rgba(15,94,156,.18);}
.hdr-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex:0 0 auto;}
.icon-btn{
  width:40px;height:40px;border-radius:50%;
  border:1px solid var(--line);background:var(--surface);color:var(--ink-600);
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.icon-btn:hover{background:var(--brand-050);color:var(--brand-700);border-color:var(--brand-100);}

/* ============ 按钮 ============ */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:600;font-size:15px;line-height:1.4;
  border-radius:var(--radius-btn);padding:12px 24px;
  border:1px solid transparent;cursor:pointer;text-decoration:none;white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.btn-brand{background:var(--brand-700);color:#fff;}
.btn-brand:hover{background:var(--brand-900);color:#fff;transform:translateY(-1px);}
.btn-brand:active{transform:none;}
.btn-ghost{background:var(--surface);color:var(--brand-700);border-color:var(--brand-700);}
.btn-ghost:hover{background:var(--brand-050);color:var(--brand-700);}
.btn-hot{background:var(--hot-500);color:#fff;}
.btn-hot:hover{background:#e86a20;color:#fff;transform:translateY(-1px);}
.btn-hot:active{transform:none;}
.btn-sm-x{padding:9px 18px;font-size:14px;}
.btn-hdr{font-size:14px;}
.btn-block-x{width:100%;}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,var(--brand-050) 0%,#FFFFFF 62%);
  padding:48px 0 72px;
}
.hero::after{
  content:"";position:absolute;right:-160px;top:-180px;width:520px;height:520px;
  border:1px solid var(--brand-100);border-radius:50%;pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;position:relative;z-index:1;}
.breadcrumb-x{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;margin:0 0 22px;padding:0;font-size:13px;color:var(--ink-400);}
.breadcrumb-x li{display:inline-flex;align-items:center;gap:8px;}
.breadcrumb-x li+li::before{content:"/";color:#C7D3DF;}
.breadcrumb-x a{color:var(--ink-600);}
.breadcrumb-x a:hover{color:var(--brand-700);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand-100);color:var(--brand-700);
  font-size:13px;font-weight:600;letter-spacing:.02em;
  border-radius:var(--radius-chip);padding:6px 14px;margin-bottom:18px;
}
.hero-title{font-size:clamp(30px,4vw,44px);line-height:1.25;font-weight:700;letter-spacing:-.01em;margin-bottom:18px;}
.hero-sub{font-size:17px;line-height:1.8;color:var(--ink-600);max-width:36ch;margin-bottom:28px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;border-top:1px solid var(--line);padding-top:24px;}
.stat-num{font-size:24px;font-weight:700;color:var(--brand-700);line-height:1.3;font-variant-numeric:tabular-nums;}
.stat-lbl{font-size:13px;color:var(--ink-400);line-height:1.6;}
.hero-visual{position:relative;}
.hero-visual img{width:100%;border-radius:20px;box-shadow:var(--shadow-2);object-fit:cover;aspect-ratio:4/3;}
.hero-badge{
  position:absolute;left:18px;bottom:18px;
  background:rgba(10,63,107,.92);color:#fff;font-size:13px;font-weight:600;
  border-radius:var(--radius-chip);padding:8px 16px;
}

/* ============ 板块 ============ */
.sec{padding:var(--sec-y) 0;}
.sec-bg{background:var(--bg);}
.sec-white{background:var(--surface);}
.sec-head{max-width:820px;margin-bottom:40px;}
.sec-title{
  font-size:clamp(24px,2.6vw,32px);line-height:1.35;font-weight:700;
  border-left:4px solid var(--brand-700);padding-left:16px;margin-bottom:14px;
}
.sec-sub{font-size:16px;line-height:1.85;color:var(--ink-600);}
.sec-title-sm{font-size:20px;line-height:1.5;font-weight:600;margin-bottom:12px;}

/* ============ 筛选 chip ============ */
.filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;}
.fchip{
  border:1px solid var(--line);background:var(--surface);color:var(--ink-600);
  border-radius:var(--radius-chip);padding:8px 18px;font-size:14px;font-weight:500;
  cursor:pointer;transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.fchip:hover{background:var(--brand-050);color:var(--brand-700);border-color:var(--brand-100);}
.fchip.active{background:var(--brand-700);border-color:var(--brand-700);color:#fff;font-weight:600;}

/* ============ 对比矩阵 ============ */
.matrix-wrap{
  overflow-x:auto;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);
}
table.matrix{width:100%;min-width:880px;border-collapse:separate;border-spacing:0;font-size:15px;}
.matrix th,.matrix td{padding:16px 18px;text-align:left;vertical-align:middle;border-bottom:1px solid var(--line);}
.matrix thead th{background:var(--brand-050);color:var(--brand-900);font-weight:600;font-size:15px;}
.matrix tbody tr:last-child th,.matrix tbody tr:last-child td{border-bottom:0;}
.matrix tbody th{position:sticky;left:0;background:var(--surface);font-weight:600;color:var(--ink-900);box-shadow:1px 0 0 var(--line);}
.matrix tbody tr:hover th{background:var(--brand-050);}
.matrix tbody tr:hover td{background:var(--brand-050);}
.matrix .col-reco{background:var(--brand-100);}
.matrix thead th.col-reco{box-shadow:inset 0 3px 0 var(--brand-700);}
.matrix tbody tr:hover td.col-reco{background:#DCEBF8;}
.badge-reco{display:inline-block;margin-left:8px;padding:2px 8px;border-radius:var(--radius-chip);background:var(--brand-700);color:#fff;font-size:12px;font-weight:600;vertical-align:middle;}
.tick{display:inline-flex;align-items:center;gap:6px;color:var(--mint-500);font-weight:600;}
.tick svg{flex:0 0 auto;}
.matrix-foot{margin-top:16px;font-size:14px;color:var(--ink-400);}

.matrix-cards{display:none;gap:16px;}
.mcard{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);padding:20px;}
.mcard-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:8px;}
.mcard-title{font-size:18px;font-weight:600;color:var(--ink-900);}
.mcard-tag{font-size:12px;font-weight:600;color:var(--brand-700);background:var(--brand-100);border-radius:var(--radius-chip);padding:3px 10px;white-space:nowrap;}
.mrow{display:flex;justify-content:space-between;gap:16px;padding:10px 0;border-bottom:1px dashed var(--line);font-size:15px;}
.mrow:last-child{border-bottom:0;}
.mrow-k{color:var(--ink-400);flex:0 0 auto;}
.mrow-v{color:var(--ink-900);text-align:right;}

/* ============ 图文两列 ============ */
.split{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center;}
.split.reverse{grid-template-columns:7fr 5fr;}
.split + .split{margin-top:64px;}
.split-media img{width:100%;border-radius:var(--radius-card);box-shadow:var(--shadow-1);object-fit:cover;}
.split-body p{font-size:16px;line-height:1.85;}
.checklist{list-style:none;margin:0 0 4px;padding:0;}
.checklist li{position:relative;padding-left:28px;margin-bottom:12px;font-size:15.5px;line-height:1.75;color:var(--ink-600);}
.checklist li::before{
  content:"";position:absolute;left:0;top:4px;width:16px;height:16px;border-radius:4px;
  background:rgba(22,179,154,.14);border:1px solid rgba(22,179,154,.5);
}
.checklist li::after{
  content:"";position:absolute;left:5px;top:8px;width:6px;height:9px;
  border:2px solid var(--mint-500);border-top:0;border-left:0;transform:rotate(45deg);
}
.panel-dark{background:var(--brand-900);border-radius:var(--radius-card);padding:24px 26px;box-shadow:var(--shadow-1);margin-bottom:24px;}
.panel-dark h4{color:#fff;font-size:16px;font-weight:600;margin-bottom:6px;}
.panel-dark .pd-tip{font-size:13px;color:rgba(255,255,255,.62);margin-bottom:10px;}
.pd-row{display:flex;justify-content:space-between;gap:16px;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.14);font-size:15px;color:rgba(255,255,255,.9);}
.pd-row:last-child{border-bottom:0;}
.pd-row span:last-child{color:#BEDCF3;font-variant-numeric:tabular-nums;}

/* ============ 流程阶梯 ============ */
.flow{margin-top:8px;}
.flow-item{
  display:grid;grid-template-columns:88px minmax(0,1fr) auto;gap:24px;align-items:center;
  padding:24px 0;border-bottom:1px solid var(--line);
  transition:background-color .2s ease;
}
.flow-item:last-child{border-bottom:0;}
.flow-item:hover{background:var(--brand-050);}
.flow-item:nth-child(2){padding-left:24px;}
.flow-item:nth-child(3){padding-left:48px;}
.flow-item:nth-child(4){padding-left:72px;}
.flow-num{font-size:40px;font-weight:700;line-height:1;color:var(--brand-100);font-variant-numeric:tabular-nums;}
@supports (-webkit-text-stroke:1px #000){
  .flow-num{color:transparent;-webkit-text-stroke:1.5px var(--brand-700);}
}
.flow-title{font-size:18px;font-weight:600;color:var(--ink-900);margin-bottom:4px;}
.flow-desc{font-size:15px;line-height:1.75;color:var(--ink-600);}
.flow-tag{
  font-size:13px;font-weight:600;color:var(--brand-700);background:var(--brand-050);
  border:1px solid var(--brand-100);border-radius:var(--radius-chip);padding:6px 14px;white-space:nowrap;
}

/* ============ 限时条 ============ */
.promo-bar{
  display:flex;align-items:center;gap:24px;flex-wrap:wrap;
  background:var(--brand-050);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px 26px;box-shadow:var(--shadow-1);
}
.pulse{position:relative;width:10px;height:10px;border-radius:50%;background:var(--hot-500);flex:0 0 auto;}
.pulse::after{
  content:"";position:absolute;inset:-6px;border-radius:50%;
  border:2px solid var(--hot-500);opacity:.5;animation:pulseRing 1.8s ease-out infinite;
}
@keyframes pulseRing{0%{transform:scale(.6);opacity:.55;}100%{transform:scale(1.5);opacity:0;}}
.promo-text{flex:1 1 260px;min-width:220px;}
.promo-text strong{display:block;color:var(--ink-900);font-size:17px;font-weight:600;margin-bottom:4px;}
.promo-text span{font-size:14px;color:var(--ink-600);}
.promo-tag{display:inline-block;background:var(--hot-500);color:#fff;font-size:12px;font-weight:600;border-radius:var(--radius-chip);padding:3px 10px;margin-right:8px;vertical-align:middle;}
.countdown{display:flex;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:var(--surface);}
.cd-cell{display:flex;flex-direction:column;align-items:center;justify-content:center;min-width:64px;padding:8px 12px;border-right:1px solid var(--line);}
.cd-cell:last-child{border-right:0;}
.cd-num{font-size:22px;font-weight:700;line-height:1.2;color:var(--brand-700);font-variant-numeric:tabular-nums;}
.cd-lbl{font-size:12px;color:var(--ink-400);line-height:1.4;}

/* ============ FAQ ============ */
.faq-x{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);padding:8px 26px;}
.faq-x details{border-bottom:1px solid var(--line);}
.faq-x details:last-child{border-bottom:0;}
.faq-x summary{
  list-style:none;cursor:pointer;position:relative;
  padding:20px 44px 20px 0;font-size:17px;font-weight:600;color:var(--ink-900);
  transition:color .2s ease;
}
.faq-x summary::-webkit-details-marker{display:none;}
.faq-x summary::after{
  content:"+";position:absolute;right:8px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--brand-600);transition:transform .2s ease,color .2s ease;
}
.faq-x details[open] summary{color:var(--brand-700);}
.faq-x details[open] summary::after{content:"−";color:var(--brand-700);}
.faq-body{padding:0 44px 22px 0;font-size:15.5px;line-height:1.85;color:var(--ink-600);}
.faq-x details[open] .faq-body{animation:fadeUp .2s ease;}
@keyframes fadeUp{from{opacity:0;transform:translateY(6px);}to{opacity:1;transform:none;}}

/* ============ 咨询表单 ============ */
.consult-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;}
.trust-list{list-style:none;margin:0 0 24px;padding:0;}
.trust-list li{position:relative;padding-left:28px;margin-bottom:12px;font-size:15px;line-height:1.75;color:var(--ink-600);}
.trust-list li::before{
  content:"";position:absolute;left:0;top:4px;width:16px;height:16px;border-radius:4px;
  background:rgba(22,179,154,.14);border:1px solid rgba(22,179,154,.5);
}
.trust-list li::after{
  content:"";position:absolute;left:5px;top:8px;width:6px;height:9px;
  border:2px solid var(--mint-500);border-top:0;border-left:0;transform:rotate(45deg);
}
.form-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);padding:28px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink-900);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;padding:11px 14px;font-size:15px;color:var(--ink-900);
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-input);
  transition:border-color .2s ease,box-shadow .2s ease;appearance:none;
}
.field textarea{min-height:96px;resize:vertical;}
.field select{background-image:linear-gradient(45deg,transparent 50%,var(--ink-400) 50%),linear-gradient(135deg,var(--ink-400) 50%,transparent 50%);background-position:calc(100% - 20px) 50%,calc(100% - 15px) 50%;background-size:5px 5px,5px 5px;background-repeat:no-repeat;padding-right:38px;}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand-700);box-shadow:0 0 0 3px rgba(15,94,156,.12);}
.field.has-err input,.field.has-err select,.field.has-err textarea{border-color:var(--hot-500);}
.err{display:none;margin-top:6px;font-size:13px;color:var(--hot-500);}
.field.has-err .err{display:block;}
.agree{display:flex;align-items:flex-start;gap:10px;font-size:14px;line-height:1.7;color:var(--ink-600);margin-bottom:18px;}
.agree input{width:16px;height:16px;margin-top:4px;flex:0 0 auto;accent-color:var(--brand-700);}
.form-actions{display:flex;justify-content:flex-end;}
.form-ok{display:none;margin-top:16px;padding:12px 16px;font-size:15px;color:var(--ink-900);background:var(--brand-050);border-left:4px solid var(--mint-500);border-radius:8px;}
.form-ok.show{display:block;}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.8);padding:64px 0 0;font-size:15px;}
.f-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.f-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px;margin-bottom:16px;}
.f-brand .brand-mark{color:#fff;}
.f-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);}
.f-col h4{position:relative;color:#fff;font-size:15px;font-weight:600;margin:0 0 16px;padding-bottom:10px;}
.f-col h4::after{content:"";position:absolute;left:0;bottom:0;width:28px;height:2px;background:var(--brand-600);}
.f-links,.f-contact{list-style:none;margin:0;padding:0;}
.f-links li{margin-bottom:10px;}
.f-links a{color:rgba(255,255,255,.8);font-size:14px;}
.f-links a:hover{color:#fff;}
.f-contact li{margin-bottom:12px;font-size:14px;line-height:1.7;color:rgba(255,255,255,.8);}
.f-contact .num{display:block;color:#fff;font-size:18px;font-weight:600;}
.f-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;padding:20px 0;border-top:1px solid rgba(255,255,255,.16);font-size:13px;color:rgba(255,255,255,.6);}

/* ============ 入场动效 ============ */
html.js .reveal{opacity:0;transform:translateY(16px);transition:opacity .5s ease,transform .5s ease;}
html.js .reveal.is-in{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .hero-grid{gap:36px;}
}
@media (max-width:991.98px){
  :root{--sec-y:64px;}
  .hdr-inner{flex-wrap:wrap;gap:12px;padding:12px 0;}
  .brand{font-size:18px;}
  .seg-nav{order:3;width:100%;justify-content:flex-start;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;margin:0 -24px;padding:0 24px;}
  .seg-nav::-webkit-scrollbar{display:none;}
  .seg-wrap{flex-wrap:nowrap;}
  .hdr-actions{margin-left:auto;}
  .hero{padding:32px 0 56px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-sub{max-width:none;}
  .hero-visual img{aspect-ratio:16/9;}
  .split,.split.reverse{grid-template-columns:1fr;gap:24px;}
  .split + .split{margin-top:48px;}
  .consult-grid{grid-template-columns:1fr;gap:28px;}
  .f-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767.98px){
  :root{--sec-y:56px;}
  .hero-stats{grid-template-columns:1fr 1fr;gap:18px 16px;}
  .matrix-wrap{display:none;}
  .matrix-cards{display:grid;}
  .flow-item,.flow-item:nth-child(2),.flow-item:nth-child(3),.flow-item:nth-child(4){
    grid-template-columns:56px minmax(0,1fr);gap:16px;padding:20px 0;
  }
  .flow-num{font-size:30px;}
  .flow-item .flow-tag{grid-column:2;justify-self:start;}
  .promo-bar{flex-direction:column;align-items:flex-start;gap:16px;}
  .promo-bar .btn-x{width:100%;}
  .faq-x{padding:4px 18px;}
  .faq-x summary{font-size:16px;padding-right:36px;}
  .faq-body{padding-right:0;}
  .form-card{padding:20px;}
  .form-actions{justify-content:stretch;}
  .form-actions .btn-x{width:100%;}
  .f-grid{grid-template-columns:1fr;gap:28px;}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px;}
  .seg-nav{margin:0 -16px;padding:0 16px;}
  .brand{font-size:16px;}
  .brand-mark svg{width:24px;height:24px;}
  .hero-cta .btn-x{width:100%;}
  .countdown{width:100%;}
  .cd-cell{flex:1 1 auto;}
  .mcard{padding:16px;}
  .mrow{font-size:14.5px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  html.js .reveal{opacity:1;transform:none;}
}

/* roulang page: category3 */
:root{
  --brand-700:#0F5E9C;
  --brand-600:#1673BE;
  --brand-900:#0A3F6B;
  --brand-100:#E7F1FA;
  --brand-050:#F4F9FD;
  --mint-500:#16B39A;
  --hot-500:#FF7A2F;
  --ink-900:#14202B;
  --ink-600:#4A5A6A;
  --ink-400:#8A98A6;
  --line:#E4EAF1;
  --bg:#F6F8FB;
  --surface:#FFFFFF;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-chip:999px;
  --radius-input:10px;
  --shadow-1:0 1px 2px rgba(16,42,67,.06),0 6px 18px rgba(16,42,67,.05);
  --shadow-2:0 4px 10px rgba(16,42,67,.08),0 16px 36px rgba(16,42,67,.10);
  --sec-y:88px;
  --font-sans:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-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-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--ink-900);
  background:var(--bg);
  text-align:left;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease,background-color .2s ease,box-shadow .2s ease,transform .2s ease}
a:hover{color:var(--brand-700)}
p{margin:0 0 1.25em}
p:last-child{margin-bottom:0}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-0.01em;color:var(--ink-900)}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:4px}
.num{font-variant-numeric:tabular-nums}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
@media (min-width:1400px){.container{max-width:1200px}}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--brand-900);color:rgba(255,255,255,.86);font-size:13px;line-height:36px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px}
.topbar-note{letter-spacing:.2px}
.topbar-links{display:flex;align-items:center;gap:18px}
.topbar-links a{color:rgba(255,255,255,.86);font-size:13px}
.topbar-links a:hover{color:#fff}
.topbar-cta{display:inline-flex;align-items:center;gap:6px;padding:0 12px;height:24px;border-radius:var(--radius-chip);background:rgba(255,255,255,.12);color:#fff !important}
.topbar-cta:hover{background:rgba(255,255,255,.22)}
@media (max-width:767px){.topbar-note{display:none}.topbar-inner{justify-content:flex-end}}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.hdr-inner{display:flex;align-items:center;gap:24px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--brand-700)}
.brand:hover{color:var(--brand-900)}
.brand-mark{display:inline-flex;color:var(--brand-600)}
.brand-text{font-size:20px;font-weight:700;letter-spacing:-0.01em;white-space:nowrap}
.seg-nav{flex:1 1 auto;display:flex;justify-content:center}
.seg-wrap{display:flex;align-items:center;gap:4px;padding:4px;background:var(--brand-050);border-radius:var(--radius-chip);border:1px solid var(--line)}
.chip{
  display:inline-block;padding:8px 18px;border-radius:var(--radius-chip);
  font-size:14px;font-weight:500;color:var(--ink-600);white-space:nowrap;line-height:1.4;
}
.chip:hover{background:#fff;color:var(--brand-700)}
.chip.active{background:var(--brand-100);color:var(--brand-700);font-weight:600;box-shadow:inset 0 0 0 1px rgba(15,94,156,.18)}
.hdr-actions{flex:0 0 auto;display:flex;align-items:center;gap:12px;margin-left:24px}
.icon-btn{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:#fff;
  color:var(--ink-600);display:inline-flex;align-items:center;justify-content:center;
  transition:all .2s ease;cursor:pointer;
}
.icon-btn:hover{background:var(--brand-050);color:var(--brand-700);border-color:var(--brand-100)}

/* ---------- 按钮系统 ---------- */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);padding:12px 24px;font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.btn-brand{background:var(--brand-700);color:#fff}
.btn-brand:hover{background:var(--brand-900);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-brand:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:#fff;border-color:var(--brand-700);color:var(--brand-700)}
.btn-ghost:hover{background:var(--brand-050);color:var(--brand-700);transform:translateY(-1px)}
.btn-hot{background:var(--hot-500);color:#fff}
.btn-hot:hover{background:#e9691f;color:#fff;transform:translateY(-1px)}
.btn-sm-x{padding:9px 18px;font-size:14px}
.btn-lg-x{padding:14px 30px;font-size:16px}
.btn-block-x{width:100%}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--brand-600);font-weight:600;font-size:15px}
.btn-text i{transition:transform .2s ease}
.btn-text:hover{color:var(--brand-900)}
.btn-text:hover i{transform:translateX(2px)}
.btn-hdr{padding:9px 20px;font-size:14px}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sec-y) 0}
.section-alt{background:var(--surface)}
.sec-head{max-width:760px;margin-bottom:40px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
h2.sec-title{
  font-size:clamp(24px,2.6vw,32px);line-height:1.35;font-weight:700;
  border-left:4px solid var(--brand-700);padding-left:16px;margin-bottom:16px;
}
.sec-sub{color:var(--ink-600);font-size:15px;line-height:1.8}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--brand-700);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--brand-600);display:inline-block}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:var(--surface);border-bottom:1px solid var(--line)}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-400);padding:12px 0}
.crumb a{color:var(--ink-600)}
.crumb a:hover{color:var(--brand-700)}
.crumb .sep{color:var(--ink-400)}
.crumb .now{color:var(--ink-400)}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,var(--brand-050) 0%,#fff 64%);
  padding:56px 0 72px;
  border-bottom:1px solid var(--line);
}
.hero::after{
  content:"";position:absolute;right:-180px;top:-240px;width:620px;height:620px;
  border:1px solid var(--brand-100);border-radius:50%;pointer-events:none;
}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:56px;align-items:center}
.hero h1{font-size:clamp(30px,4vw,44px);line-height:1.25;letter-spacing:-0.01em;margin-bottom:18px}
.hero h1 .hl{color:var(--brand-700)}
.hero-lead{font-size:17px;line-height:1.8;color:var(--ink-600);margin-bottom:28px;max-width:34em}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;padding-top:26px;border-top:1px solid var(--line)}
.stat-num{font-size:24px;font-weight:700;color:var(--brand-700);line-height:1.2}
.stat-label{font-size:13px;color:var(--ink-400);margin-top:4px}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:20px;box-shadow:var(--shadow-2)}
.hero-media::after{content:"";position:absolute;inset:0;border-radius:20px;background:rgba(15,94,156,.08);pointer-events:none}
.hero-badge{
  position:absolute;left:-14px;bottom:22px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-2);padding:12px 18px;display:flex;align-items:center;gap:10px;
}
.dot-pulse{width:9px;height:9px;border-radius:50%;background:var(--hot-500);position:relative;flex:0 0 auto}
.dot-pulse::after{content:"";position:absolute;inset:-5px;border-radius:50%;border:1px solid var(--hot-500);opacity:.5;animation:pulse 1.8s ease-out infinite}
@keyframes pulse{0%{transform:scale(.7);opacity:.6}100%{transform:scale(1.5);opacity:0}}
.hero-badge strong{font-size:14px;display:block;line-height:1.4}
.hero-badge span{font-size:12px;color:var(--ink-400)}

/* ---------- 时间轴 ---------- */
.cal-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);padding:40px 36px}
.tl-track{position:relative;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:20px}
.tl-track::before{
  content:"";position:absolute;top:6px;left:2%;right:2%;height:2px;
  background:linear-gradient(90deg,var(--brand-100),var(--brand-600),var(--brand-100));
}
.tl-node{position:relative;padding-top:32px}
.tl-dot{
  position:absolute;top:0;left:0;width:14px;height:14px;border-radius:50%;
  background:#fff;border:3px solid var(--brand-600);box-shadow:0 0 0 4px var(--brand-100);
}
.tl-date{display:block;font-size:15px;font-weight:700;color:var(--brand-900);font-variant-numeric:tabular-nums}
.tl-tag{
  display:inline-block;margin:8px 0 10px;padding:3px 12px;border-radius:var(--radius-chip);
  background:var(--brand-100);color:var(--brand-700);font-size:13px;font-weight:600;
}
.tl-text{font-size:14px;line-height:1.75;color:var(--ink-600)}
.cal-foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;margin-top:36px;padding-top:24px;border-top:1px solid var(--line)}
.cal-foot p{font-size:14px;color:var(--ink-600);margin:0}

/* ---------- 深色信息面板 ---------- */
.panel-dark{
  background:var(--brand-900);color:rgba(255,255,255,.84);
  border-radius:var(--radius-card);padding:48px 44px;position:relative;overflow:hidden;
}
.panel-dark::before{
  content:"";position:absolute;left:-80px;bottom:-120px;width:340px;height:340px;border-radius:50%;
  border:1px solid rgba(255,255,255,.10);
}
.panel-dark h2{color:#fff;border-left-color:var(--brand-600)}
.panel-dark .sec-sub{color:rgba(255,255,255,.70)}
.panel-grid{position:relative;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;margin-top:34px}
.panel-item{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:12px;padding:20px 18px}
.panel-item .pi-top{display:flex;align-items:center;gap:8px;margin-bottom:10px}
.panel-item i{color:var(--mint-500);font-size:15px}
.panel-item h3{font-size:16px;color:#fff;font-weight:600}
.panel-item p{font-size:14px;line-height:1.75;color:rgba(255,255,255,.72);margin:0}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;position:relative}
.tag-x{
  display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:var(--radius-chip);
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.16);color:rgba(255,255,255,.86);
  font-size:13px;font-weight:500;
}
.tag-x i{color:var(--mint-500);font-size:12px}

/* ---------- 赛事卡片流 ---------- */
.ev-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.ev-card{
  display:grid;grid-template-columns:42% minmax(0,1fr);
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.ev-card:hover{transform:translateY(-2px);border-color:var(--brand-100);box-shadow:var(--shadow-2)}
.ev-thumb{position:relative;overflow:hidden;background:var(--brand-050)}
.ev-thumb img{width:100%;height:100%;aspect-ratio:3/2;object-fit:cover;transition:transform .35s ease}
.ev-card:hover .ev-thumb img{transform:scale(1.04)}
.ev-thumb .ev-flag{
  position:absolute;left:12px;top:12px;padding:4px 12px;border-radius:var(--radius-chip);
  background:rgba(10,63,107,.86);color:#fff;font-size:12px;font-weight:600;letter-spacing:.02em;
}
.ev-body{padding:22px 22px 20px}
.ev-body h3{font-size:18px;line-height:1.5;font-weight:600;margin-bottom:10px}
.ev-body p{font-size:14px;line-height:1.75;color:var(--ink-600);margin-bottom:14px}
.ev-meta{display:flex;flex-wrap:wrap;gap:8px}
.ev-meta span{
  display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:var(--radius-chip);
  background:var(--brand-050);border:1px solid var(--line);color:var(--ink-600);font-size:12.5px;
}
.ev-meta i{color:var(--brand-600);font-size:12px}

/* ---------- 流程 ---------- */
.flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;counter-reset:step}
.flow-item{
  position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 22px 22px;box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.flow-item:hover{transform:translateY(-2px);border-color:var(--brand-100);box-shadow:var(--shadow-2)}
.flow-no{
  font-size:30px;font-weight:700;line-height:1;color:transparent;
  -webkit-text-stroke:1.4px var(--brand-100);letter-spacing:.02em;margin-bottom:14px;
  font-variant-numeric:tabular-nums;
}
.flow-item h3{font-size:17px;font-weight:600;margin-bottom:10px}
.flow-item p{font-size:14px;line-height:1.75;color:var(--ink-600);margin:0}

/* ---------- FAQ ---------- */
.faq-acc{border-top:1px solid var(--line)}
.faq-acc .accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent}
.faq-acc .accordion-header{margin:0}
.faq-acc .accordion-button{
  width:100%;background:transparent;border:0;box-shadow:none;
  padding:22px 4px;font-size:17px;font-weight:600;color:var(--ink-900);
  display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;
  transition:color .2s ease,background-color .2s ease;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--brand-700)}
.faq-acc .accordion-button:hover{color:var(--brand-700)}
.faq-acc .accordion-button:focus{box-shadow:none;outline:2px solid var(--brand-600);outline-offset:-2px}
.faq-acc .accordion-button::after{
  content:"+";background-image:none;width:26px;height:26px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;font-size:19px;font-weight:400;
  color:var(--ink-400);transition:transform .2s ease,color .2s ease;
}
.faq-acc .accordion-button:not(.collapsed)::after{content:"−";color:var(--brand-700);transform:rotate(180deg)}
.faq-acc .accordion-body{padding:0 4px 24px;font-size:15px;line-height:1.85;color:var(--ink-600);max-width:62em}
.faq-acc .accordion-body p{margin-bottom:.9em}

/* ---------- CTA / 表单 ---------- */
.cta-band{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cta-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:48px;align-items:start}
.trust-list{margin-top:26px}
.trust-list li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--ink-600);padding:9px 0;border-bottom:1px dashed var(--line)}
.trust-list li:last-child{border-bottom:0}
.trust-list i{color:var(--mint-500);margin-top:5px;font-size:14px}
.form-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);padding:32px}
.form-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--ink-900)}
.field label .req{color:var(--hot-500);margin-left:4px}
.field input,.field select,.field textarea{
  width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:var(--radius-input);
  background:#fff;font-size:15px;line-height:1.5;transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:110px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(22,115,190,.14);
}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-400)}
.field .hint{font-size:13px;color:var(--ink-400);margin-top:6px}
.check-line{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--ink-600);margin:22px 0 24px}
.check-line input{width:18px;height:18px;margin-top:4px;accent-color:var(--brand-700);flex:0 0 auto}
.check-line a{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px}
.form-actions{display:flex;justify-content:flex-end}
.form-note{font-size:13px;color:var(--ink-400);margin-top:14px;text-align:right}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.80);padding:64px 0 0;font-size:14px}
.f-grid{display:grid;grid-template-columns:minmax(0,1.6fr) repeat(3,minmax(0,1fr));gap:40px;padding-bottom:48px}
.f-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:19px;font-weight:700;margin-bottom:16px}
.f-brand .brand-mark{color:var(--brand-600)}
.f-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.70);margin:0}
.f-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px;position:relative;padding-bottom:12px}
.f-col h4::after{content:"";position:absolute;left:0;bottom:0;width:28px;height:2px;background:var(--brand-600)}
.f-links li{margin-bottom:10px}
.f-links a{color:rgba(255,255,255,.78);font-size:14px}
.f-links a:hover{color:#fff;padding-left:2px}
.f-contact li{margin-bottom:12px;color:rgba(255,255,255,.72);font-size:14px;line-height:1.7}
.f-contact .num{display:block;color:#fff;font-size:19px;font-weight:700;letter-spacing:.02em}
.f-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0;display:flex;flex-wrap:wrap;
  align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:rgba(255,255,255,.60);
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .55s ease,transform .55s ease}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero-grid{gap:40px}
  .panel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:991px){
  :root{--sec-y:64px}
  .hdr-inner{flex-wrap:wrap;gap:12px;padding:12px 0}
  .seg-nav{order:3;flex:1 0 100%;justify-content:flex-start;overflow-x:auto;-ms-overflow-style:none;scrollbar-width:none}
  .seg-nav::-webkit-scrollbar{display:none}
  .seg-wrap{padding:4px;min-width:max-content}
  .hdr-actions{margin-left:auto}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-media{max-width:560px}
  .hero-badge{left:12px}
  .tl-track{grid-template-columns:repeat(3,minmax(0,1fr));gap:26px 20px}
  .tl-track::before{display:none}
  .tl-node{padding-top:26px;border-top:2px solid var(--brand-100)}
  .tl-dot{top:-8px}
  .ev-grid{grid-template-columns:1fr}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-grid{grid-template-columns:1fr;gap:36px}
  .f-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
}
@media (max-width:767px){
  :root{--sec-y:56px}
  .container{padding-left:16px;padding-right:16px}
  .hero{padding:36px 0 56px}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
  .cal-wrap{padding:26px 20px}
  .tl-track{grid-template-columns:1fr;gap:0}
  .tl-track::before{display:block;left:7px;right:auto;top:8px;bottom:8px;width:2px;height:auto;background:linear-gradient(180deg,var(--brand-100),var(--brand-600),var(--brand-100))}
  .tl-node{padding:0 0 26px 0;border-top:0}
  .tl-node:last-child{padding-bottom:0}
  .tl-dot{top:6px;left:-22px}
  .tl-track{padding-left:22px}
  .flow{grid-template-columns:1fr}
  .panel-dark{padding:32px 22px}
  .panel-grid{grid-template-columns:1fr;gap:14px}
  .ev-card{grid-template-columns:1fr}
  .ev-thumb img{aspect-ratio:16/9}
  .form-card{padding:24px 20px}
  .form-row{grid-template-columns:1fr;gap:0}
  .form-actions{justify-content:stretch}
  .form-actions .btn-x{width:100%}
  .form-note{text-align:left}
  .f-grid{grid-template-columns:1fr;gap:30px}
  .f-bottom{flex-direction:column;align-items:flex-start}
  .hero-cta .btn-x{width:100%}
  .cal-foot{flex-direction:column;align-items:flex-start}
  .cal-foot .btn-x{width:100%}
}
@media (max-width:575px){
  .brand-text{font-size:17px}
  .btn-hdr{padding:8px 14px;font-size:13px}
  .icon-btn{width:36px;height:36px}
  .crumb{font-size:12px}
}

/* roulang page: category4 */
:root{
  --brand-900:#0A3F6B;
  --brand-700:#0F5E9C;
  --brand-600:#1673BE;
  --brand-100:#E7F1FA;
  --brand-050:#F4F9FD;
  --mint-500:#16B39A;
  --hot-500:#FF7A2F;
  --ink-900:#14202B;
  --ink-600:#4A5A6A;
  --ink-400:#8A98A6;
  --line:#E4EAF1;
  --bg:#F6F8FB;
  --surface:#FFFFFF;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-chip:999px;
  --radius-input:10px;
  --shadow-1:0 1px 2px rgba(16,42,67,.06), 0 6px 18px rgba(16,42,67,.05);
  --shadow-2:0 4px 10px rgba(16,42,67,.08), 0 16px 36px rgba(16,42,67,.10);
  --font-cn:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;padding:0;
  font-family:var(--font-cn);
  font-size:16px;line-height:1.85;
  color:var(--ink-900);
  background:var(--surface);
  text-align:left;
}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:var(--brand-700);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,box-shadow .2s ease;}
a:hover{color:var(--brand-900);}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0 0 1.25em;text-align:left;}
h1,h2,h3,h4,h5{margin:0;font-weight:700;color:var(--ink-900);letter-spacing:-.01em;}
button,input,select,textarea{font-family:inherit;font-size:16px;line-height:1.6;}
button{cursor:pointer;}
:focus-visible{outline:2px solid var(--brand-700);outline-offset:2px;}
.num{font-variant-numeric:tabular-nums;}

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

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.scrolled{box-shadow:var(--shadow-1);}
.hdr-inner{display:flex;align-items:center;gap:24px;height:72px;}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--brand-900);font-weight:700;font-size:20px;letter-spacing:-.01em;
  flex:0 0 auto;
}
.brand:hover{color:var(--brand-700);}
.brand-mark{display:inline-flex;align-items:center;color:var(--brand-700);}
.brand-text{white-space:nowrap;}

.seg-nav{margin-left:auto;}
.seg-wrap{
  display:flex;align-items:center;gap:4px;
  background:var(--brand-050);
  border-radius:var(--radius-chip);
  padding:4px;
}
.chip{
  display:inline-block;
  padding:8px 18px;
  border-radius:var(--radius-chip);
  font-size:15px;
  color:var(--ink-600);
  white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,box-shadow .2s ease;
}
.chip:hover{background:rgba(15,94,156,.08);color:var(--brand-700);}
.chip.active{
  background:var(--brand-100);
  color:var(--brand-700);
  font-weight:600;
  box-shadow:inset 0 0 0 1px rgba(15,94,156,.18);
}

.hdr-actions{display:flex;align-items:center;gap:12px;margin-left:24px;flex:0 0 auto;}
.icon-btn{
  width:40px;height:40px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);color:var(--ink-600);
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.icon-btn:hover{background:var(--brand-050);color:var(--brand-700);border-color:var(--brand-100);}

/* ---------- buttons ---------- */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;
  border-radius:var(--radius-btn);
  font-size:16px;font-weight:600;
  border:1px solid transparent;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  text-align:center;
}
.btn-brand{background:var(--brand-700);color:#fff;border-color:var(--brand-700);}
.btn-brand:hover{background:var(--brand-900);border-color:var(--brand-900);color:#fff;transform:translateY(-1px);}
.btn-brand:active{transform:translateY(0);background:var(--brand-900);}
.btn-ghost{background:#fff;color:var(--brand-700);border-color:var(--brand-700);}
.btn-ghost:hover{background:var(--brand-050);color:var(--brand-900);border-color:var(--brand-900);}
.btn-hot{background:var(--hot-500);color:#fff;border-color:var(--hot-500);}
.btn-hot:hover{background:#ea6a1e;border-color:#ea6a1e;color:#fff;transform:translateY(-1px);}
.btn-sm-x{padding:9px 18px;font-size:15px;}
.btn-block-x{width:100%;}
.btn-hdr{white-space:nowrap;}

.text-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand-700);font-weight:600;font-size:15px;
}
.text-link svg{transition:transform .2s ease;}
.text-link:hover svg{transform:translateX(2px);}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:44px 0 76px;
  background:linear-gradient(160deg,var(--brand-050) 0%,#ffffff 62%);
}
.page-hero::after{
  content:"";position:absolute;right:-140px;top:-120px;
  width:460px;height:460px;border-radius:50%;
  border:1px solid var(--brand-100);
  pointer-events:none;
}
.crumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:14px;color:var(--ink-400);margin-bottom:24px;
}
.crumb a{color:var(--ink-600);}
.crumb a:hover{color:var(--brand-700);}
.crumb .sep{color:var(--ink-400);}
.crumb .now{color:var(--ink-400);}

.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);
  gap:48px;
  align-items:start;
  position:relative;z-index:1;
}
.eyebrow{
  display:inline-block;
  padding:6px 14px;
  border-radius:var(--radius-chip);
  background:var(--brand-100);
  color:var(--brand-700);
  font-size:13px;font-weight:600;letter-spacing:.02em;
  margin-bottom:18px;
}
.page-hero h1{
  font-size:clamp(30px,4vw,44px);
  line-height:1.25;
  letter-spacing:-.01em;
  margin-bottom:18px;
  max-width:22em;
}
.page-hero .lead{
  font-size:18px;line-height:1.8;color:var(--ink-600);
  max-width:38em;margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
  border-top:1px solid var(--line);
  padding-top:24px;
}
.hero-stats .stat-num{
  font-size:24px;font-weight:700;color:var(--brand-700);
  font-variant-numeric:tabular-nums;line-height:1.3;
}
.hero-stats .stat-lbl{font-size:13px;color:var(--ink-400);line-height:1.6;}

.hero-visual{position:relative;}
.hero-visual .shot{
  position:relative;border-radius:20px;overflow:hidden;
  box-shadow:var(--shadow-1);
  aspect-ratio:16/11;
  background:var(--brand-100);
}
.hero-visual .shot img{width:100%;height:100%;object-fit:cover;}
.hero-visual .shot::after{
  content:"";position:absolute;inset:0;
  background:rgba(10,63,107,.08);
}
.quick-panel{
  margin-top:18px;
  background:var(--brand-900);
  color:rgba(255,255,255,.88);
  border-radius:var(--radius-card);
  padding:22px 24px;
  box-shadow:var(--shadow-1);
}
.quick-panel h3{
  color:#fff;font-size:16px;font-weight:600;
  display:flex;align-items:center;gap:10px;margin-bottom:14px;
}
.dot-pulse{
  width:9px;height:9px;border-radius:50%;background:var(--hot-500);
  box-shadow:0 0 0 0 rgba(255,122,47,.6);
  animation:pulse 2s infinite;
  flex:0 0 auto;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(255,122,47,.55);}
  70%{box-shadow:0 0 0 12px rgba(255,122,47,0);}
  100%{box-shadow:0 0 0 0 rgba(255,122,47,0);}
}
.quick-panel ul li{
  display:flex;justify-content:space-between;gap:16px;
  padding:9px 0;
  border-bottom:1px solid rgba(255,255,255,.14);
  font-size:14px;
}
.quick-panel ul li:last-child{border-bottom:0;}
.quick-panel ul li span:first-child{color:rgba(255,255,255,.65);}
.quick-panel ul li span:last-child{color:#fff;font-weight:600;}

/* ---------- section basics ---------- */
.section{padding:88px 0;}
.section-tight{padding:72px 0;}
.section-alt{background:var(--bg);}
.sec-head{max-width:52em;margin-bottom:40px;}
.sec-head h2{
  font-size:clamp(24px,2.6vw,32px);
  line-height:1.35;
  padding-left:16px;
  border-left:4px solid var(--brand-700);
  margin-bottom:14px;
}
.sec-head p{color:var(--ink-600);font-size:16px;margin:0;}

/* ---------- qa layout ---------- */
.qa-layout{
  display:grid;
  grid-template-columns:260px minmax(0,1fr);
  gap:40px;
  align-items:start;
}
.qa-side{
  position:sticky;top:96px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:22px 18px;
  box-shadow:var(--shadow-1);
}
.side-title{
  font-size:15px;font-weight:600;color:var(--ink-900);
  padding-bottom:12px;margin-bottom:12px;
  border-bottom:1px solid var(--line);
}
.qa-chips{display:flex;flex-direction:column;gap:6px;margin-bottom:18px;}
.qa-chip{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 12px;
  border-radius:var(--radius-btn);
  font-size:15px;color:var(--ink-600);
  transition:background-color .2s ease,color .2s ease;
}
.qa-chip em{
  font-style:normal;font-size:12px;color:var(--ink-400);
  background:var(--brand-050);border-radius:var(--radius-chip);padding:2px 9px;
}
.qa-chip:hover{background:var(--brand-050);color:var(--brand-700);}
.qa-chip.active{background:var(--brand-100);color:var(--brand-700);font-weight:600;}
.qa-chip.active em{background:#fff;color:var(--brand-700);}
.side-note{
  background:var(--brand-050);
  border-radius:var(--radius-btn);
  padding:14px;
  font-size:13px;line-height:1.75;color:var(--ink-600);
}
.side-note strong{display:block;color:var(--brand-900);font-size:14px;margin-bottom:4px;}

.qa-group{margin-bottom:56px;}
.qa-group:last-child{margin-bottom:0;}
.group-title{
  font-size:20px;line-height:1.5;font-weight:600;
  padding-left:14px;border-left:4px solid var(--brand-600);
  margin-bottom:6px;
}
.group-desc{color:var(--ink-600);font-size:15px;margin:0 0 14px 14px;}

/* accordion 重塑 */
.qa-acc .accordion-item{
  border:0;
  border-bottom:1px solid var(--line);
  background:transparent;
  border-radius:0;
}
.qa-acc .accordion-item:first-of-type{border-top:1px solid var(--line);}
.qa-acc .accordion-header{margin:0;}
.qa-acc .accordion-button{
  background:transparent;
  border:0;
  box-shadow:none;
  padding:20px 52px 20px 0;
  font-size:16px;font-weight:600;line-height:1.7;
  color:var(--ink-900);
  text-align:left;
  position:relative;
  transition:color .2s ease;
}
.qa-acc .accordion-button:not(.collapsed){color:var(--brand-700);background:transparent;box-shadow:none;}
.qa-acc .accordion-button:focus{box-shadow:none;border:0;}
.qa-acc .accordion-button:focus-visible{outline:2px solid var(--brand-700);outline-offset:-2px;}
.qa-acc .accordion-button::after,
.qa-acc .accordion-button::before{
  content:"";position:absolute;right:10px;top:50%;
  background:var(--brand-700);transition:transform .2s ease,opacity .2s ease;
}
.qa-acc .accordion-button::after{width:14px;height:2px;transform:translateY(-50%);}
.qa-acc .accordion-button::before{width:2px;height:14px;transform:translateY(-50%);}
.qa-acc .accordion-button.collapsed::after,
.qa-acc .accordion-button.collapsed::before{background:var(--ink-400);}
.qa-acc .accordion-button:not(.collapsed)::before{opacity:0;transform:translateY(-50%) rotate(90deg);}
.qa-acc .accordion-button:hover{color:var(--brand-700);}
.qa-acc .accordion-body{
  padding:0 52px 24px 0;
  color:var(--ink-600);
  font-size:15.5px;line-height:1.85;
}
.qa-acc .accordion-body p:last-child{margin-bottom:0;}

/* ---------- dark band ---------- */
.band-dark{
  background:var(--brand-900);
  color:rgba(255,255,255,.85);
  padding:72px 0;
}
.band-inner{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,2.1fr);
  gap:48px;align-items:center;
}
.band-inner h2{
  color:#fff;font-size:clamp(22px,2.4vw,28px);
  line-height:1.4;margin-bottom:14px;
}
.band-inner p{color:rgba(255,255,255,.72);font-size:15px;margin:0;}
.band-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.band-stat{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius-card);
  padding:22px 20px;
}
.band-stat .bs-num{
  font-size:26px;font-weight:700;color:#fff;
  font-variant-numeric:tabular-nums;line-height:1.25;
  display:flex;align-items:center;gap:8px;
}
.band-stat .bs-num i{
  width:8px;height:8px;border-radius:50%;background:var(--hot-500);
  display:inline-block;flex:0 0 auto;
}
.band-stat .bs-lbl{
  font-size:13px;color:rgba(255,255,255,.65);margin-top:6px;line-height:1.65;
}

/* ---------- flow ---------- */
.flow-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
}
.flow-card{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px 22px 24px;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.flow-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-100);}
.flow-num{
  font-size:32px;font-weight:700;color:var(--brand-100);
  line-height:1;font-variant-numeric:tabular-nums;margin-bottom:14px;
}
.flow-card h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.flow-card p{font-size:14px;color:var(--ink-600);margin:0;line-height:1.8;}
.flow-card .flow-tag{
  display:inline-block;margin-top:14px;
  padding:4px 12px;border-radius:var(--radius-chip);
  background:var(--brand-050);color:var(--brand-700);
  font-size:13px;
}

/* ---------- scene ---------- */
.scene-row{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:48px;
  align-items:center;
  margin-bottom:64px;
}
.scene-row:last-child{margin-bottom:0;}
.scene-row.reverse .scene-media{order:2;}
.scene-row.reverse .scene-text{order:1;}
.scene-media{
  position:relative;
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  aspect-ratio:4/3;
  background:var(--brand-100);
}
.scene-media img{width:100%;height:100%;object-fit:cover;}
.scene-media .arc{
  position:absolute;left:-40px;bottom:-40px;
  width:150px;height:150px;border-radius:50%;
  border:14px solid rgba(231,241,250,.85);
  pointer-events:none;
}
.scene-text h3{font-size:22px;line-height:1.5;margin-bottom:14px;}
.scene-text p{color:var(--ink-600);font-size:16px;}
.scene-list{display:flex;flex-direction:column;gap:10px;margin-top:18px;}
.scene-list li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:15px;color:var(--ink-600);
}
.scene-list li svg{flex:0 0 auto;margin-top:5px;color:var(--mint-500);}

/* ---------- unresolved + form ---------- */
.resolve-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:40px;
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:48px;
  align-items:start;
}
.resolve-text h2{
  font-size:clamp(22px,2.4vw,28px);
  line-height:1.4;margin-bottom:14px;
}
.resolve-text p{color:var(--ink-600);font-size:16px;}
.trust-list{display:flex;flex-direction:column;gap:12px;margin-top:20px;}
.trust-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-600);}
.trust-list li svg{flex:0 0 auto;margin-top:5px;color:var(--mint-500);}

.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.field{display:flex;flex-direction:column;gap:7px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:14px;color:var(--ink-600);font-weight:600;}
.field input,
.field select,
.field textarea{
  width:100%;
  padding:12px 14px;
  border:1px solid var(--line);
  border-radius:var(--radius-input);
  background:#fff;
  color:var(--ink-900);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:104px;resize:vertical;}
.field input::placeholder,
.field textarea::placeholder{color:var(--ink-400);}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--brand-700);
  box-shadow:0 0 0 2px rgba(15,94,156,.16);
}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--ink-600);line-height:1.7;}
.check-row input{width:17px;height:17px;margin-top:4px;flex:0 0 auto;accent-color:var(--brand-700);}
.form-foot{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;margin-top:6px;flex-wrap:wrap;
}
.form-tip{font-size:14px;color:var(--ink-400);margin:0;}
.form-msg{
  display:none;margin-top:14px;padding:12px 14px;
  border-radius:var(--radius-input);
  background:var(--brand-050);border:1px solid var(--brand-100);
  color:var(--brand-900);font-size:14px;
}
.form-msg.show{display:block;}

/* ---------- footer ---------- */
.site-footer{
  background:var(--brand-900);
  color:rgba(255,255,255,.8);
  padding:72px 0 28px;
  font-size:15px;
}
.f-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:40px;
  padding-bottom:40px;
}
.f-brand{
  display:flex;align-items:center;gap:10px;
  color:#fff;font-size:19px;font-weight:700;
  margin-bottom:16px;
}
.f-brand .brand-mark{color:#fff;opacity:.9;}
.f-col p{color:rgba(255,255,255,.68);font-size:14px;line-height:1.85;margin:0;}
.f-col h4{
  color:#fff;font-size:15px;font-weight:600;
  padding-bottom:10px;margin-bottom:16px;position:relative;
}
.f-col h4::after{
  content:"";position:absolute;left:0;bottom:0;
  width:28px;height:2px;background:var(--brand-600);border-radius:2px;
}
.f-links{display:flex;flex-direction:column;gap:10px;}
.f-links a{color:rgba(255,255,255,.78);font-size:14px;}
.f-links a:hover{color:#fff;}
.f-contact{display:flex;flex-direction:column;gap:12px;font-size:14px;color:rgba(255,255,255,.68);}
.f-contact .num{color:#fff;font-size:17px;font-weight:700;margin-right:8px;}
.f-bottom{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.16);
  padding-top:22px;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .hero-grid{gap:36px;}
  .qa-layout{grid-template-columns:230px minmax(0,1fr);gap:32px;}
}
@media (max-width:991.98px){
  .hdr-inner{height:auto;flex-wrap:wrap;padding:12px 0 10px;gap:12px;}
  .brand{font-size:18px;}
  .seg-nav{order:3;flex:0 0 100%;width:100%;margin-left:0;}
  .seg-wrap{overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;}
  .seg-wrap::-webkit-scrollbar{display:none;}
  .hdr-actions{margin-left:auto;}
  .page-hero{padding:32px 0 56px;}
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:32px;}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
  .hero-visual .shot{aspect-ratio:16/9;}
  .section{padding:64px 0;}
  .section-tight{padding:56px 0;}
  .qa-layout{grid-template-columns:minmax(0,1fr);gap:28px;}
  .qa-side{position:static;}
  .qa-chips{flex-direction:row;flex-wrap:wrap;}
  .qa-chip{flex:1 1 auto;min-width:150px;}
  .band-inner{grid-template-columns:minmax(0,1fr);gap:32px;}
  .flow-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .scene-row{grid-template-columns:minmax(0,1fr);gap:28px;margin-bottom:48px;}
  .scene-row.reverse .scene-media{order:1;}
  .scene-row.reverse .scene-text{order:2;}
  .resolve-card{grid-template-columns:minmax(0,1fr);gap:32px;padding:30px;}
  .f-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px;}
  .page-hero h1{font-size:clamp(26px,7vw,32px);}
  .page-hero .lead{font-size:16px;}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));}
  .hero-actions .btn-x{flex:1 1 100%;}
  .band-stats{grid-template-columns:minmax(0,1fr);}
  .flow-grid{grid-template-columns:minmax(0,1fr);}
  .form-grid{grid-template-columns:minmax(0,1fr);}
  .form-foot{flex-direction:column;align-items:stretch;}
  .form-foot .btn-x{width:100%;}
  .qa-acc .accordion-button{padding:18px 44px 18px 0;font-size:15.5px;}
  .qa-acc .accordion-body{padding:0 8px 22px 0;font-size:15px;}
  .resolve-card{padding:24px 18px;}
  .f-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .f-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}