/* roulang page: index */
:root{
  --brand:#1E5288;
  --brand-dark:#14365C;
  --brand-light:#E7F0FA;
  --jade:#17A38A;
  --amber:#C8871F;
  --danger:#C0392B;
  --ink:#0F1B2A;
  --text:#33475B;
  --muted:#6B7C90;
  --line:#E3EAF2;
  --divide:#EEF3F8;
  --bg:#F7F9FC;
  --card:#FFFFFF;
  --deep:#10243A;
  --r-sm:8px;--r-md:12px;--r-lg:16px;--r-xl:20px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(15,27,42,.04),0 8px 24px rgba(15,27,42,.06);
  --sh-2:0 16px 40px rgba(15,27,42,.10);
  --sh-nav:0 8px 28px rgba(15,27,42,.10);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:17px;line-height:1.85;color:var(--text);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
body.lock{overflow:hidden}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:600;line-height:1.28;letter-spacing:-.01em}
p{margin:0}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(30,82,136,.3);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-head{max-width:780px;margin-bottom:48px}
.section-head h2{font-size:clamp(24px,2.6vw,32px);position:relative;padding-left:16px}
.section-head h2::before{content:"";position:absolute;left:0;top:.28em;width:3px;height:.72em;border-radius:2px;background:var(--brand)}
.section-head p{margin-top:16px;font-size:16px;line-height:1.85;color:var(--muted)}
.eyebrow{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);background:var(--brand-light);color:var(--brand);font-size:12px;font-weight:500;letter-spacing:.08em}
.tag{display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:6px;background:var(--brand-light);color:var(--brand);font-size:12px;font-weight:500;letter-spacing:.04em;white-space:nowrap}
.tag-soft{background:#F1F5F9;color:var(--muted)}
.tag-jade{background:#E4F5F1;color:var(--jade)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--r-pill);font-size:15px;font-weight:500;border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background 180ms ease-out,color 180ms ease-out,border-color 180ms ease-out,transform 220ms cubic-bezier(.2,.7,.3,1),box-shadow 220ms cubic-bezier(.2,.7,.3,1)}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(30,82,136,.22)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 10px 26px rgba(30,82,136,.28)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(30,82,136,.2)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:var(--brand-light);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn[disabled]{background:var(--line);color:#9AA9B8;border-color:var(--line);cursor:not-allowed;transform:none;box-shadow:none}
.btn-link{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:500;color:var(--brand)}
.btn-link span{transition:transform 220ms cubic-bezier(.2,.7,.3,1)}
.btn-link:hover span{transform:translateX(4px)}

/* ===== 悬浮胶囊导航 ===== */
.nav-wrap{position:fixed;top:0;left:0;right:0;z-index:100;display:flex;justify-content:center;padding:16px 16px 0;pointer-events:none;
  transition:padding-top 220ms cubic-bezier(.2,.7,.3,1)}
.nav-wrap.scrolled{padding-top:10px}
.nav-cap{pointer-events:auto;width:100%;max-width:1120px;height:64px;display:flex;align-items:center;gap:18px;padding:0 12px 0 18px;
  border-radius:var(--r-pill);background:rgba(255,255,255,.86);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);box-shadow:var(--sh-nav);
  transition:height 220ms cubic-bezier(.2,.7,.3,1),background 180ms ease-out}
.nav-wrap.scrolled .nav-cap{height:56px;background:rgba(255,255,255,.94)}
.nav-logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{width:32px;height:32px;border-radius:10px;background:linear-gradient(135deg,var(--brand),var(--brand-dark));display:grid;place-items:center;flex-shrink:0}
.logo-mark svg{width:18px;height:18px;stroke:#fff;fill:none;stroke-width:1.5}
.logo-text{font-size:16px;font-weight:700;color:var(--ink);letter-spacing:0}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:8px;flex:1}
.nav-links a{display:inline-flex;align-items:center;height:40px;padding:0 14px;border-radius:var(--r-pill);font-size:15px;color:var(--text);
  transition:color 180ms ease-out,background 180ms ease-out}
.nav-links a:hover{color:var(--brand);background:var(--brand-light)}
.nav-links a.active{color:var(--brand);font-weight:600;background:var(--brand-light)}
.nav-actions{display:flex;align-items:center;gap:16px;flex-shrink:0}
.nav-text-link{font-size:14px;color:var(--muted);transition:color 180ms ease-out}
.nav-text-link:hover{color:var(--brand)}
.nav-toggle{display:none;width:44px;height:44px;margin-left:auto;border:1px solid var(--line);border-radius:12px;background:#fff;
  flex-direction:column;justify-content:center;align-items:center;gap:4px;cursor:pointer;flex-shrink:0}
.nav-toggle span{display:block;width:18px;height:1.5px;border-radius:2px;background:var(--ink);
  transition:transform 220ms cubic-bezier(.2,.7,.3,1),opacity 180ms ease-out}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(5.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-5.5px) rotate(-45deg)}
.nav-mask{position:fixed;inset:0;z-index:98;background:rgba(15,27,42,.42);opacity:0;visibility:hidden;
  transition:opacity 220ms ease-out,visibility 220ms ease-out}
.nav-mask.show{opacity:1;visibility:visible}
.nav-drawer{position:fixed;top:0;left:0;right:0;z-index:99;padding:92px 24px 28px;background:rgba(255,255,255,.98);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-radius:0 0 20px 20px;border-bottom:1px solid var(--line);box-shadow:var(--sh-2);
  transform:translateY(-110%);transition:transform 260ms cubic-bezier(.2,.7,.3,1)}
.nav-drawer.open{transform:translateY(0)}
.drawer-link{display:flex;align-items:center;justify-content:space-between;height:48px;font-size:16px;color:var(--ink);border-bottom:1px solid var(--divide)}
.drawer-link.active{color:var(--brand);font-weight:600}
.drawer-link::after{content:"›";font-size:18px;color:var(--muted)}
.drawer-cta{width:100%;margin-top:20px}

/* ===== Hero ===== */
.hero{position:relative;padding:148px 0 96px;overflow:hidden}
.hero-bg{position:absolute;inset:0;background:linear-gradient(180deg,#EAF2FA 0%,rgba(247,249,252,0) 64%);z-index:0}
.hero .container{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.hero-copy h1{font-size:clamp(30px,3.5vw,46px);font-weight:700;margin:20px 0 0;line-height:1.26}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.85;color:var(--text);max-width:560px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.hero-trust{display:flex;flex-wrap:wrap;gap:24px;margin-top:32px}
.hero-trust li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted)}
.hero-trust svg{width:18px;height:18px;stroke:var(--jade);fill:none;stroke-width:1.5;flex-shrink:0}
.hero-visual{position:relative}
.hero-visual img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-xl)}
.hero-visual::after{content:"";position:absolute;left:0;right:0;bottom:0;height:46%;border-radius:0 0 var(--r-xl) var(--r-xl);
  background:linear-gradient(180deg,rgba(16,36,58,0) 0%,rgba(16,36,58,.52) 100%);pointer-events:none}
.hero-badge-card{position:absolute;right:16px;bottom:16px;z-index:2;display:flex;gap:24px;padding:14px 20px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1)}
.hero-badge-card strong{display:block;font-size:22px;font-weight:600;color:var(--brand);line-height:1.2;font-variant-numeric:tabular-nums}
.hero-badge-card span{font-size:12px;color:var(--muted)}

/* ===== 指标卡 ===== */
.metrics{margin-top:-48px;position:relative;z-index:5}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.metric-card{position:relative;overflow:hidden;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:26px 24px 26px;
  transition:transform 220ms cubic-bezier(.2,.7,.3,1),box-shadow 220ms cubic-bezier(.2,.7,.3,1)}
.metric-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.metric-card::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:linear-gradient(90deg,var(--brand),var(--jade))}
.metric-num{font-size:40px;font-weight:600;color:var(--brand);line-height:1.1;font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.metric-label{font-size:14px;color:var(--muted);margin-top:6px}
.metric-desc{font-size:14px;color:var(--text);margin-top:12px;line-height:1.75}

/* ===== Bento ===== */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.bento-7{grid-column:span 7}
.bento-5{grid-column:span 5}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);
  padding:28px 26px 26px;display:flex;flex-direction:column;
  transition:transform 220ms cubic-bezier(.2,.7,.3,1),box-shadow 220ms cubic-bezier(.2,.7,.3,1),border-color 180ms ease-out}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D3E1F0}
.card h3{font-size:18px;font-weight:600;margin-bottom:10px}
.card p{font-size:15px;line-height:1.8;color:var(--text)}
.card-icon{width:42px;height:42px;border-radius:12px;background:var(--brand-light);display:grid;place-items:center;margin-bottom:18px}
.card-icon svg{width:20px;height:20px;stroke:var(--brand);fill:none;stroke-width:1.5}
.card-foot{margin-top:auto;padding-top:20px}
.card-media{padding:0;overflow:hidden}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.card-media .card-body{padding:26px 26px 26px;display:flex;flex-direction:column;flex:1}
.card-points{margin-top:16px;display:flex;flex-direction:column;gap:8px}
.card-points li{position:relative;padding-left:20px;font-size:14px;color:var(--muted);line-height:1.75}
.card-points li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--jade)}

/* ===== 对比 ===== */
.compare{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.compare-col{border-radius:var(--r-lg);padding:28px 26px;border:1px solid var(--line);background:#fff}
.compare-col.before{background:#F1F4F8}
.compare-col.after{background:var(--brand-light);border-top:3px solid var(--brand)}
.compare-col h3{font-size:18px;margin-bottom:16px}
.compare-col ul{display:flex;flex-direction:column;gap:12px}
.compare-col li{position:relative;padding-left:22px;font-size:15px;line-height:1.8;color:var(--text)}
.compare-col.before li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:2px;background:#9AA9B8}
.compare-col.after li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--jade)}
.table-wrap{margin-top:32px;overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-lg);background:#fff;box-shadow:var(--sh-1)}
table{width:100%;border-collapse:collapse;font-size:15px}
thead th{background:#F4F7FB;color:var(--ink);font-weight:600;text-align:left;padding:16px 20px;font-size:14px;white-space:nowrap}
tbody td{padding:16px 20px;border-top:1px solid var(--divide);color:var(--text)}
tbody tr:nth-child(even){background:#FBFCFE}
td.num{text-align:right;font-variant-numeric:tabular-nums;font-weight:600;color:var(--brand)}

/* ===== 步骤 ===== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{position:relative;padding-top:4px}
.step-num{width:36px;height:36px;border-radius:50%;border:1px solid var(--brand);color:var(--brand);background:#fff;
  display:grid;place-items:center;font-size:15px;font-weight:600;font-variant-numeric:tabular-nums}
.step:nth-child(1) .step-num{background:var(--brand);color:#fff}
.step h3{font-size:18px;margin:18px 0 8px}
.step p{font-size:14px;color:var(--muted);line-height:1.78}

/* ===== 资讯列表 ===== */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.news-feature{display:grid;grid-template-columns:45% 1fr;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform 220ms cubic-bezier(.2,.7,.3,1),box-shadow 220ms cubic-bezier(.2,.7,.3,1)}
.news-feature:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.news-feature-img img{width:100%;height:100%;min-height:250px;object-fit:cover}
.news-feature-body{padding:28px 30px;display:flex;flex-direction:column;gap:12px}
.news-feature-body h3{font-size:20px;line-height:1.45}
.news-feature-body p{font-size:15px;color:var(--muted);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:auto;padding-top:8px}
.news-time{font-size:14px;color:var(--muted);font-variant-numeric:tabular-nums}
.news-arrow{color:var(--brand);font-size:16px;transition:transform 220ms cubic-bezier(.2,.7,.3,1)}
.news-feature:hover .news-arrow,.news-item:hover .news-arrow{transform:translateX(4px)}
.news-list-box{margin-top:16px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1)}
.news-item{display:grid;grid-template-columns:118px 1fr auto;gap:20px;align-items:center;min-height:64px;padding:18px 24px;
  border-top:1px solid var(--divide);transition:background 180ms ease-out}
.news-item:first-child{border-top:0}
.news-item:hover{background:#F8FBFE}
.news-item-main{min-width:0}
.news-item-main strong{display:block;font-size:16px;font-weight:600;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.news-item-main em{display:block;font-style:normal;font-size:14px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:2px}
.news-item-side{display:flex;align-items:center;gap:16px}
.empty-state{background:#fff;border:1px dashed var(--line);border-radius:var(--r-lg);padding:56px 24px;text-align:center;color:var(--muted)}
.empty-state svg{width:48px;height:48px;stroke:#C3D2E2;fill:none;stroke-width:1.2;margin:0 auto 16px}
.empty-state p{font-size:15px}

/* ===== FAQ ===== */
.faq{max-width:860px;margin:0 auto}
.faq details{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:16px 20px;margin-bottom:12px;
  transition:border-color 180ms ease-out,box-shadow 180ms ease-out}
.faq details[open]{border-color:#D3E1F0;box-shadow:var(--sh-1)}
.faq summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:17px;font-weight:600;color:var(--ink);min-height:32px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:20px;color:var(--brand);flex-shrink:0;line-height:1;
  transition:transform 220ms cubic-bezier(.2,.7,.3,1)}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq-body{padding-top:12px;font-size:15px;line-height:1.85;color:var(--muted)}

/* ===== 表单 ===== */
.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start}
.contact-copy h2{font-size:clamp(24px,2.6vw,32px)}
.contact-copy > p{margin-top:16px;font-size:16px;color:var(--muted);line-height:1.85}
.contact-points{margin-top:28px;display:flex;flex-direction:column;gap:14px}
.contact-points li{position:relative;padding-left:24px;font-size:15px;line-height:1.8;color:var(--text)}
.contact-points li::before{content:"";position:absolute;left:0;top:9px;width:14px;height:8px;border-left:2px solid var(--jade);border-bottom:2px solid var(--jade);transform:rotate(-45deg)}
.contact-line{margin-top:28px;font-size:14px;color:var(--muted)}
.contact-line strong{color:var(--ink);font-weight:600}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:32px}
.form-row{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:500;color:var(--ink);margin-bottom:8px}
.field input,.field select,.field textarea{width:100%;min-height:44px;border:1px solid var(--line);border-radius:var(--r-md);
  padding:10px 14px;font-size:15px;background:#fff;color:var(--ink);
  transition:border-color 180ms ease-out,box-shadow 180ms ease-out}
.field textarea{min-height:110px;resize:vertical;line-height:1.7}
.field select{appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%236B7C90' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;padding-right:40px}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(30,82,136,.15)}
.field input.is-error,.field textarea.is-error{border-color:var(--danger);box-shadow:0 0 0 3px rgba(192,57,43,.12)}
.field-err{display:none;font-size:12px;color:var(--danger);margin-top:6px}
.field input:disabled{background:var(--line);color:#9AA9B8;cursor:not-allowed}
.check{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--muted);line-height:1.7}
.check input{width:18px;height:18px;min-height:18px;margin-top:3px;flex-shrink:0;accent-color:var(--brand)}
.form-submit{width:100%;margin-top:8px}
.form-success{display:none;text-align:center;padding:24px 8px}
.form-success svg{width:52px;height:52px;stroke:var(--jade);fill:none;stroke-width:1.5;margin:0 auto 16px}
.form-success strong{display:block;font-size:18px;color:var(--ink);margin-bottom:8px}
.form-success p{font-size:15px;color:var(--muted)}

/* ===== 页脚 ===== */
.footer{background:var(--deep);color:#C7D5E3;padding:64px 0 32px;margin-top:96px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand .logo-mark{background:rgba(255,255,255,.12)}
.footer-brand .logo-text{color:#fff;font-size:16px;font-weight:700}
.footer p{font-size:14px;line-height:1.85;color:#9FB3C8}
.footer h4{font-size:14px;color:#fff;margin-bottom:18px;font-weight:600;letter-spacing:.06em}
.footer-list{display:flex;flex-direction:column;gap:12px}
.footer-list a{font-size:14px;color:#C7D5E3;transition:color 180ms ease-out}
.footer-list a:hover{color:#fff}
.footer-bottom{margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,.10);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.footer-bottom p{font-size:13px;color:#8296AB}
.back-top{position:fixed;right:24px;bottom:24px;z-index:60;width:44px;height:44px;border-radius:50%;
  background:var(--brand);color:#fff;border:0;display:grid;place-items:center;cursor:pointer;
  box-shadow:0 8px 24px rgba(30,82,136,.32);opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity 220ms ease-out,visibility 220ms ease-out,transform 220ms cubic-bezier(.2,.7,.3,1),background 180ms ease-out}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.back-top:hover{background:var(--brand-dark)}
.back-top svg{width:20px;height:20px;stroke:#fff;fill:none;stroke-width:1.8}

/* ===== 响应式 ===== */
@media (max-width:1023px){
  .section{padding:72px 0}
  .nav-links,.nav-actions{display:none}
  .nav-toggle{display:flex}
  .nav-cap{padding:0 12px 0 16px}
  .hero{padding:132px 0 88px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-copy h1{font-size:clamp(28px,5vw,36px)}
  .metrics{margin-top:-40px}
  .metrics-grid{grid-template-columns:repeat(2,1fr)}
  .bento{grid-template-columns:repeat(2,1fr)}
  .bento-7{grid-column:span 2}
  .bento-5{grid-column:span 1}
  .steps{grid-template-columns:repeat(2,1fr);gap:32px}
  .contact-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .news-feature{grid-template-columns:1fr}
  .news-feature-img img{min-height:200px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 18px}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .hero{padding:120px 0 80px}
  .hero-cta .btn{width:100%}
  .metrics-grid{grid-template-columns:1fr}
  .bento{grid-template-columns:1fr}
  .bento-7,.bento-5{grid-column:span 1}
  .compare{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr;gap:28px;padding-left:20px;position:relative}
  .steps::before{content:"";position:absolute;left:17px;top:10px;bottom:16px;border-left:2px dashed #D3E1F0}
  .step{position:relative}
  .step-num{position:relative;z-index:1}
  .news-item{grid-template-columns:1fr;gap:8px;padding:18px 20px}
  .news-item-side{justify-content:space-between}
  .news-feature-body{padding:22px 20px}
  .form-row{grid-template-columns:1fr;gap:0}
  .form-card{padding:24px 20px}
  .footer{padding:48px 0 28px;margin-top:64px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .back-top{right:16px;bottom:16px}
  .table-wrap{border:0;background:transparent;box-shadow:none;overflow:visible}
  table,thead,tbody,tr,td,th{display:block}
  thead{display:none}
  tbody tr{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:12px;padding:6px 0;box-shadow:var(--sh-1)}
  tbody td{border:0;padding:8px 18px;display:flex;justify-content:space-between;gap:16px}
  tbody td::before{content:attr(data-label);color:var(--muted);font-size:14px;flex-shrink:0}
  td.num{text-align:right}
}
@media (max-width:400px){
  .hero-badge-card{gap:16px;padding:12px 16px;right:10px;bottom:10px}
  .hero-badge-card strong{font-size:19px}
}

/* roulang page: article */
:root{
  --c-primary:#1E5288;
  --c-primary-dark:#14365C;
  --c-primary-light:#E7F0FA;
  --c-green:#17A38A;
  --c-amber:#C8871F;
  --c-danger:#C0392B;
  --t-main:#0F1B2A;
  --t-body:#33475B;
  --t-muted:#6B7C90;
  --border:#E3EAF2;
  --divider:#EEF3F8;
  --bg:#F7F9FC;
  --card:#FFFFFF;
  --dark:#10243A;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,27,42,.04),0 8px 24px rgba(15,27,42,.06);
  --sh-2:0 16px 40px rgba(15,27,42,.10);
  --sh-nav:0 8px 28px rgba(15,27,42,.10);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--t-body);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
h1,h2,h3,h4{color:var(--t-main);line-height:1.28;letter-spacing:-0.01em;font-weight:600}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--c-primary-dark)}
img{max-width:100%;display:block;border-radius:14px}
button{font-family:inherit}
ul,ol{padding-left:1.2em}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.eyebrow{font-size:12px;letter-spacing:.08em;color:var(--t-muted)}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.h2-bar{display:inline-flex;align-items:center;gap:12px;font-size:30px;margin:0 0 12px}
.h2-bar::before{content:"";width:3px;height:20px;background:var(--c-primary);border-radius:2px;display:inline-block}
.section-sub{color:var(--t-muted);font-size:15px;max-width:640px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-pill);
  font-size:16px;font-weight:500;border:1px solid transparent;
  cursor:pointer;transition:transform .22s cubic-bezier(.2,.7,.3,1),background-color .18s ease-out,box-shadow .18s ease-out,color .18s ease-out;
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--sh-1)}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-light);color:var(--c-primary-dark);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn:focus-visible,a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:3px solid rgba(30,82,136,.30);outline-offset:2px;
}
.text-link{display:inline-flex;align-items:center;gap:6px;font-weight:500}
.text-link svg{transition:transform .22s cubic-bezier(.2,.7,.3,1)}
.text-link:hover svg{transform:translateX(4px)}
.badge{display:inline-flex;align-items:center;height:20px;padding:0 8px;border-radius:6px;font-size:12px;background:var(--c-primary-light);color:var(--c-primary);letter-spacing:.02em}
.badge-green{background:rgba(23,163,138,.12);color:#0F7C69}
.badge-amber{background:rgba(200,135,31,.14);color:#8F5F12}

/* 导航 */
.nav-wrap{position:fixed;top:16px;left:0;right:0;z-index:60;transition:top .22s cubic-bezier(.2,.7,.3,1)}
.nav-cap{
  width:calc(100% - 32px);max-width:1120px;margin:0 auto;height:64px;
  display:flex;align-items:center;gap:20px;padding:0 12px 0 18px;
  background:rgba(255,255,255,.86);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--border);border-radius:var(--r-pill);box-shadow:var(--sh-nav);
  transition:height .22s cubic-bezier(.2,.7,.3,1),background-color .18s ease-out;
}
.nav-wrap.scrolled{top:10px}
.nav-wrap.scrolled .nav-cap{height:56px;background:rgba(255,255,255,.94)}
.nav-logo{display:inline-flex;align-items:center;gap:10px;color:var(--t-main);font-weight:600;font-size:17px;flex-shrink:0}
.nav-logo:hover{color:var(--c-primary)}
.logo-mark{width:32px;height:32px;border-radius:10px;background:var(--c-primary-light);display:inline-flex;align-items:center;justify-content:center;flex-shrink:0}
.logo-mark svg{width:18px;height:18px;fill:none;stroke:var(--c-primary);stroke-width:1.5;stroke-linejoin:round;stroke-linecap:round}
.logo-text{white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;list-style:none;margin:0 auto;padding:0}
.nav-links a{
  display:inline-flex;align-items:center;height:40px;padding:0 14px;border-radius:var(--r-pill);
  color:var(--t-body);font-size:15px;position:relative;
}
.nav-links a:hover{color:var(--c-primary);background:var(--c-primary-light)}
.nav-links a.active{color:var(--c-primary);font-weight:600;background:var(--c-primary-light)}
.nav-actions{display:flex;align-items:center;gap:14px;flex-shrink:0}
.nav-text-link{font-size:14px;color:var(--t-muted)}
.nav-text-link:hover{color:var(--c-primary)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--border);background:#fff;border-radius:var(--r-md);
  flex-direction:column;justify-content:center;align-items:center;gap:4px;cursor:pointer;margin-left:auto;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--t-main);border-radius:2px;transition:transform .22s ease-out,opacity .18s ease-out}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(6px) rotate(45deg)}
body.nav-open .nav-toggle span:nth-child(2){opacity:0}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* 面包屑 */
.page-main{padding-top:124px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--t-muted);margin-bottom:28px}
.breadcrumb a{color:var(--t-muted)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:#B9C6D4}
.breadcrumb .current{color:var(--t-muted);max-width:56ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* 文章布局 */
.article-layout{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:40px;align-items:start}
.article-head{padding-bottom:28px;border-bottom:1px solid var(--divider);margin-bottom:32px}
.article-head h1{font-size:38px;margin:14px 0 16px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;color:var(--t-muted);font-variant-numeric:tabular-nums}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C6D2DE;display:inline-block}
.article-body{max-width:760px;font-size:17px;line-height:1.9;color:var(--t-body)}
.article-body p{margin:0 0 1.2em}
.article-body h2{font-size:24px;margin:2.4em 0 .8em;padding-left:14px;position:relative}
.article-body h2::before{content:"";position:absolute;left:0;top:.24em;width:3px;height:20px;background:var(--c-primary);border-radius:2px}
.article-body h3{font-size:20px;font-weight:600;margin:1.8em 0 .6em}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:1.3em}
.article-body li{margin:.4em 0}
.article-body ul li::marker{color:var(--c-primary)}
.article-body ol li::marker{color:var(--c-primary);font-weight:600}
.article-body blockquote{
  margin:1.6em 0;padding:20px 22px;background:#F7F9FC;border-left:3px solid var(--c-primary);
  border-radius:0 var(--r-md) var(--r-md) 0;color:var(--t-body);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{margin:1.6em 0;border-radius:14px}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--t-muted);text-align:center;margin-top:10px}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--border);padding:12px 14px;text-align:left}
.article-body th{background:#F2F6FA;color:var(--t-main);font-weight:600}
.article-body tbody tr:nth-child(even){background:#FAFCFE}
.article-body code{background:#F2F6FA;border-radius:6px;padding:2px 6px;font-size:15px;color:var(--c-primary-dark)}

/* 侧栏 */
.sidebar{position:sticky;top:96px;display:grid;gap:20px}
.side-card{background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:24px}
.side-card h3{font-size:16px;margin-bottom:14px}
.toc-list{list-style:none;margin:0;padding:0;max-height:320px;overflow:auto}
.toc-list li{margin:0}
.toc-list a{display:block;padding:9px 12px;border-left:2px solid var(--divider);font-size:14px;color:var(--t-body);line-height:1.6}
.toc-list a:hover{border-left-color:var(--c-primary);color:var(--c-primary);background:#F7F9FC}
.side-links{list-style:none;margin:0;padding:0}
.side-links li{border-top:1px solid var(--divider)}
.side-links li:first-child{border-top:0}
.side-links a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 0;font-size:15px;color:var(--t-body)}
.side-links a:hover{color:var(--c-primary)}
.side-links .idx{font-size:12px;color:var(--t-muted);font-variant-numeric:tabular-nums}
.side-cta{background:var(--c-primary-light);border-color:#D3E3F4}
.side-cta p{font-size:14px;color:var(--t-body);margin:8px 0 16px}

/* 标签与继续阅读 */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:40px 0 0}
.tag{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--r-pill);background:#fff;border:1px solid var(--border);font-size:13px;color:var(--t-body)}
.tag:hover{border-color:var(--c-primary);color:var(--c-primary)}
.next-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:40px}
.next-card{display:block;background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);padding:22px;box-shadow:var(--sh-1);transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .18s ease-out}
.next-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);color:var(--t-main)}
.next-card span{font-size:12px;letter-spacing:.08em;color:var(--t-muted)}
.next-card strong{display:block;font-size:17px;font-weight:600;color:var(--t-main);margin-top:8px}
.next-card em{display:block;font-style:normal;font-size:14px;color:var(--t-muted);margin-top:6px}

/* 相关推荐 */
.card-grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rec-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .18s ease-out}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.rec-card figure{margin:0;aspect-ratio:16/9;overflow:hidden}
.rec-card img{width:100%;height:100%;object-fit:cover;border-radius:0}
.rec-card .rec-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rec-card h3{font-size:18px}
.rec-card p{font-size:14px;color:var(--t-muted);line-height:1.75}
.rec-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--t-muted);margin-top:auto;font-variant-numeric:tabular-nums}

/* FAQ */
.faq-list{max-width:860px;display:grid;gap:12px}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);padding:16px 20px}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:17px;font-weight:600;color:var(--t-main)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:20px;color:var(--c-primary);transition:transform .22s cubic-bezier(.2,.7,.3,1)}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item p{font-size:15px;line-height:1.8;color:var(--t-muted);margin-top:12px}

/* CTA */
.cta-box{
  background:var(--dark);border-radius:var(--r-xl);padding:56px;display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:40px;align-items:center;color:#C7D5E3;
}
.cta-box h2{color:#fff;font-size:30px;margin-bottom:14px}
.cta-box p{color:#C7D5E3;font-size:15px;line-height:1.8}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
.cta-box .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.cta-box .btn-ghost:hover{background:rgba(255,255,255,.10);color:#fff}

/* 空态 */
.empty-state{background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);padding:56px 32px;text-align:center;box-shadow:var(--sh-1)}
.empty-state svg{width:48px;height:48px;margin:0 auto 16px;display:block;stroke:var(--c-primary);fill:none;stroke-width:1.5}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--t-muted);font-size:15px;margin-bottom:22px}

/* 页脚 */
.footer{background:var(--dark);color:#C7D5E3;margin-top:96px;padding:64px 0 32px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:600;font-size:17px;margin-bottom:16px}
.footer-brand .logo-mark{background:rgba(255,255,255,.10)}
.footer-brand .logo-mark svg{stroke:#fff}
.footer p{font-size:14px;line-height:1.8;color:#C7D5E3}
.footer h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-list{display:grid;gap:10px}
.footer-list a{color:#C7D5E3;font-size:14px}
.footer-list a:hover{color:#fff}
.footer-bottom{
  margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,.10);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
}
.footer-bottom p{font-size:13px;color:#93A8BF}
#toTop{
  position:fixed;right:24px;bottom:24px;width:44px;height:44px;border-radius:50%;
  background:#fff;border:1px solid var(--border);box-shadow:var(--sh-1);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;pointer-events:none;
  transition:opacity .22s ease-out,transform .22s cubic-bezier(.2,.7,.3,1);z-index:50;
}
#toTop.show{opacity:1;pointer-events:auto}
#toTop:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
#toTop svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}

@media (max-width:1023px){
  .nav-links{
    position:absolute;top:calc(100% + 10px);left:16px;right:16px;flex-direction:column;align-items:stretch;
    background:rgba(255,255,255,.98);backdrop-filter:blur(14px);border:1px solid var(--border);
    border-radius:0 0 var(--r-xl) var(--r-xl);box-shadow:var(--sh-2);padding:10px;
    display:none;max-height:70vh;overflow:auto;
  }
  body.nav-open .nav-links{display:flex}
  .nav-links a{height:48px;justify-content:space-between;padding:0 16px;border-radius:var(--r-md)}
  .nav-links a::after{content:"›";color:var(--t-muted);font-size:18px}
  .nav-actions{display:none}
  .nav-toggle{display:flex}
  .nav-cap{padding-right:8px}
  .article-layout{grid-template-columns:1fr;gap:32px}
  .sidebar{position:static}
  .cta-box{grid-template-columns:1fr;padding:40px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .section{padding:72px 0}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 16px}
  .page-main{padding-top:108px}
  .article-head h1{font-size:26px}
  .h2-bar{font-size:24px}
  .article-body h2{font-size:20px}
  .article-body h3{font-size:18px}
  .card-grid-3{grid-template-columns:1fr}
  .next-grid{grid-template-columns:1fr}
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .nav-wrap{top:10px}
  .nav-logo{font-size:16px}
  .breadcrumb .current{white-space:normal}
  .faq-item summary{font-size:16px}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr}
  .cta-box{padding:32px 24px}
  .cta-box h2{font-size:24px}
  .btn{width:100%}
  .cta-actions{flex-direction:column}
  .nav-actions .btn{width:auto}
}

/* roulang page: category1 */
:root{
  --primary:#1E5288;
  --primary-dark:#14365C;
  --primary-light:#E7F0FA;
  --jade:#17A38A;
  --amber:#C8871F;
  --danger:#C0392B;
  --text:#0F1B2A;
  --body:#33475B;
  --muted:#6B7C90;
  --line:#E3EAF2;
  --split:#EEF3F8;
  --bg:#F7F9FC;
  --card:#FFFFFF;
  --deep:#10243A;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,27,42,.04),0 8px 24px rgba(15,27,42,.06);
  --sh-2:0 16px 40px rgba(15,27,42,.10);
  --sh-nav:0 8px 28px rgba(15,27,42,.10);
  --ease:.18s ease-out;
  --ease-move:.22s cubic-bezier(.2,.7,.3,1);
  --nav-h:64px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.85;color:var(--body);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--primary-dark)}
h1,h2,h3,h4{color:var(--text);line-height:1.28;letter-spacing:-.01em;margin:0}
h1{font-size:38px;font-weight:700}
h2{font-size:30px;font-weight:700}
h3{font-size:18px;font-weight:600}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:3px solid rgba(30,82,136,.30);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ---------- 悬浮胶囊导航 ---------- */
.nav-wrap{
  position:fixed;top:16px;left:0;right:0;z-index:80;
  display:flex;justify-content:center;padding:0 16px;
  transition:top var(--ease-move);
}
.nav-wrap.scrolled{top:10px}
.nav-cap{
  width:100%;max-width:1120px;height:var(--nav-h);
  display:flex;align-items:center;gap:20px;
  padding:0 12px 0 18px;
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid var(--line);border-radius:var(--r-pill);
  box-shadow:var(--sh-nav);
  transition:height var(--ease-move),background var(--ease);
}
.nav-wrap.scrolled .nav-cap{height:56px;background:rgba(255,255,255,.94)}
.nav-logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text)}
.nav-logo:hover{color:var(--primary)}
.logo-mark{
  width:32px;height:32px;flex:0 0 auto;border-radius:10px;
  background:var(--primary);display:flex;align-items:center;justify-content:center;
}
.logo-mark svg{width:19px;height:19px;fill:none;stroke:#fff;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.logo-text{font-size:17px;font-weight:600;letter-spacing:.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1 1 auto}
.nav-links a{
  display:flex;align-items:center;height:40px;padding:0 14px;border-radius:var(--r-pill);
  font-size:15px;color:var(--body);white-space:nowrap;
  transition:background var(--ease),color var(--ease);
}
.nav-links a:hover{background:var(--split);color:var(--primary)}
.nav-links a.active{color:var(--primary);font-weight:600;background:var(--primary-light)}
.nav-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto;margin-left:auto}
.nav-text-link{font-size:15px;color:var(--muted);padding:0 10px;height:44px;display:flex;align-items:center}
.nav-text-link:hover{color:var(--primary)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:background var(--ease),color var(--ease),box-shadow var(--ease),transform var(--ease-move),border-color var(--ease);
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 18px rgba(30,82,136,.22)}
.btn-primary:hover{background:var(--primary-dark);color:#fff;box-shadow:0 10px 24px rgba(30,82,136,.28)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 12px rgba(30,82,136,.20)}
.btn-ghost{background:#fff;color:var(--primary);border:1px solid var(--primary)}
.btn-ghost:hover{background:var(--primary-light);color:var(--primary-dark)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn[disabled]{background:var(--line)!important;color:#9AA9B8!important;border-color:var(--line)!important;cursor:not-allowed;box-shadow:none!important}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--primary)}
.link-arrow svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.5;transition:transform var(--ease-move)}
.link-arrow:hover svg{transform:translateX(4px)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-pill);
  flex-direction:column;align-items:center;justify-content:center;gap:5px;margin-left:auto;
}
.nav-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:var(--text);transition:transform var(--ease-move),opacity var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.sec-head{max-width:760px;margin-bottom:48px}
.sec-head h2{position:relative;padding-left:14px}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:.28em;
  width:3px;height:20px;border-radius:2px;background:var(--primary);
}
.sec-head p{margin-top:16px;font-size:16px;color:var(--muted)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--primary-light);color:var(--primary);
  font-size:12px;font-weight:600;letter-spacing:.08em;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--jade)}
.sec-head-center{max-width:720px;margin:0 auto 48px;text-align:center}
.sec-head-center h2{padding-left:0}
.sec-head-center h2::before{display:none}
.sec-head-center p{margin-top:14px}

/* ---------- Hero ---------- */
.hero{padding:150px 0 40px}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.hero h1{margin-top:20px;font-size:44px;font-weight:700}
.hero .sub{margin-top:18px;font-size:17px;color:var(--body);max-width:540px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.hero-trust{display:flex;flex-wrap:wrap;gap:22px;margin-top:30px;padding-top:26px;border-top:1px solid var(--line)}
.hero-trust li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted)}
.hero-trust svg{width:18px;height:18px;fill:none;stroke:var(--jade);stroke-width:1.5;flex:0 0 auto}
.hero-visual{position:relative;border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-1)}
.hero-visual img{width:100%;aspect-ratio:16/9;object-fit:cover}
.hero-visual::after{
  content:"";position:absolute;inset:auto 0 0 0;height:45%;
  background:linear-gradient(to top,rgba(16,36,58,.55),rgba(16,36,58,0));
}
.hero-tag{
  position:absolute;right:18px;bottom:18px;z-index:2;
  background:#fff;border-radius:var(--r-md);padding:12px 16px;
  box-shadow:var(--sh-2);min-width:132px;
}
.hero-tag strong{display:block;font-size:20px;font-weight:600;color:var(--primary);letter-spacing:-.01em}
.hero-tag span{font-size:12px;color:var(--muted);letter-spacing:.08em}

/* ---------- 指标卡 ---------- */
.metrics{margin-top:-40px;position:relative;z-index:3}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.metric-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px 24px 22px;box-shadow:var(--sh-1);position:relative;overflow:hidden;
  transition:transform var(--ease-move),box-shadow var(--ease-move);
}
.metric-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.metric-card .label{font-size:14px;color:var(--muted)}
.metric-card .value{margin-top:10px;font-size:22px;font-weight:600;color:var(--primary);line-height:1.4}
.metric-card .note{margin-top:8px;font-size:13px;color:var(--muted);line-height:1.7}
.metric-card::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:linear-gradient(90deg,var(--primary),var(--jade));
}

/* ---------- 要点卡 ---------- */
.points-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.point-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px 26px 24px;box-shadow:var(--sh-1);
  transition:transform var(--ease-move),box-shadow var(--ease-move),border-color var(--ease);
}
.point-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D6E3F0}
.point-head{display:flex;align-items:center;gap:14px}
.point-ico{
  width:44px;height:44px;flex:0 0 auto;border-radius:var(--r-md);
  background:var(--primary-light);display:flex;align-items:center;justify-content:center;
}
.point-ico svg{width:22px;height:22px;fill:none;stroke:var(--primary);stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.point-card p{margin-top:14px;font-size:15px;color:var(--body)}
.point-card .tagline{
  display:inline-flex;align-items:center;height:22px;padding:0 10px;margin-top:16px;
  border-radius:6px;background:var(--split);color:var(--muted);font-size:12px;letter-spacing:.04em;
}

/* ---------- 对比表 ---------- */
.compare-wrap{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1)}
table.compare{width:100%;border-collapse:collapse;font-size:15px}
table.compare thead th{
  background:var(--split);color:var(--text);font-weight:600;text-align:left;
  padding:16px 20px;font-size:14px;white-space:nowrap;
}
table.compare tbody td{padding:16px 20px;border-top:1px solid var(--split);color:var(--body);vertical-align:top}
table.compare tbody tr:nth-child(even){background:#FBFCFE}
table.compare tbody td:first-child{color:var(--text);font-weight:600}
.cell-tag{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600}
.cell-tag.ok{color:var(--jade)}
.cell-tag.warn{color:var(--amber)}
.cell-tag svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.5}

/* ---------- FAQ ---------- */
.faq-list{max-width:860px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  margin-bottom:12px;overflow:hidden;transition:border-color var(--ease),box-shadow var(--ease);
}
.faq-item[open]{border-color:#D6E3F0;box-shadow:var(--sh-1)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:17px 20px;font-size:17px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .sign{
  position:relative;width:20px;height:20px;flex:0 0 auto;
  transition:transform var(--ease-move);
}
.faq-item summary .sign::before,
.faq-item summary .sign::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;
}
.faq-item summary .sign::before{left:0;top:9px;width:20px;height:2px}
.faq-item summary .sign::after{left:9px;top:0;width:2px;height:20px;transition:transform var(--ease-move)}
.faq-item[open] summary .sign{transform:rotate(180deg)}
.faq-item[open] summary .sign::after{transform:scaleY(0)}
.faq-body{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--muted)}

/* ---------- 转化表单 ---------- */
.cta-band{
  background:var(--deep);border-radius:var(--r-xl);
  padding:64px 48px;color:#C7D5E3;position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(23,163,138,.28),rgba(23,163,138,0) 70%);
}
.cta-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;position:relative;z-index:2}
.cta-copy h2{color:#fff}
.cta-copy p{margin-top:16px;font-size:15px;line-height:1.85;color:#C7D5E3}
.cta-points{margin-top:26px;display:flex;flex-direction:column;gap:12px}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:#C7D5E3}
.cta-points svg{width:18px;height:18px;flex:0 0 auto;margin-top:4px;fill:none;stroke:var(--jade);stroke-width:1.5}
.form-card{
  background:#fff;border-radius:var(--r-lg);padding:32px;box-shadow:var(--sh-2);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--text);margin-bottom:8px}
.field label .req{color:var(--danger)}
.field input,.field select,.field textarea{
  width:100%;height:44px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-md);
  background:#fff;font-size:15px;color:var(--text);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field textarea{height:auto;min-height:104px;padding:12px 14px;line-height:1.7;resize:vertical}
.field select{
  appearance:none;-webkit-appearance:none;
  background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236B7C90' stroke-width='1.8' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;padding-right:40px;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(30,82,136,.16);
}
.field.error input,.field.error select,.field.error textarea{border-color:var(--danger)}
.field.error input:focus,.field.error textarea:focus{box-shadow:0 0 0 3px rgba(192,57,43,.14)}
.field .err{display:none;margin-top:6px;font-size:12px;color:var(--danger)}
.field.error .err{display:block}
.check-row{display:flex;align-items:flex-start;gap:10px;margin:6px 0 20px}
.check-row input{width:18px;height:18px;margin-top:3px;accent-color:var(--primary);flex:0 0 auto}
.check-row label{font-size:13px;color:var(--muted);line-height:1.7}
.check-row.error label{color:var(--danger)}
.form-success{
  display:none;text-align:center;padding:40px 12px;
}
.form-success.show{display:block}
.form-success .ok-ico{
  width:56px;height:56px;margin:0 auto 18px;border-radius:50%;
  background:var(--primary-light);display:flex;align-items:center;justify-content:center;
}
.form-success .ok-ico svg{width:26px;height:26px;fill:none;stroke:var(--jade);stroke-width:1.8}
.form-success strong{display:block;font-size:18px;color:var(--text)}
.form-success p{margin-top:10px;font-size:14px;color:var(--muted)}
.spinner{
  display:inline-block;width:16px;height:16px;border-radius:50%;
  border:2px solid rgba(255,255,255,.45);border-top-color:#fff;
  animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- 面包屑 ---------- */
.crumb{padding:120px 0 0}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted)}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb .sep{color:#C3D0DE}
.crumb .cur{color:var(--muted)}

/* ---------- 页脚 ---------- */
.footer{background:var(--deep);color:#C7D5E3;padding:64px 0 32px;margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .logo-text{color:#fff;font-size:17px;font-weight:600}
.footer p{font-size:14px;line-height:1.8;color:#C7D5E3}
.footer-list{display:flex;flex-direction:column;gap:10px}
.footer-list a{font-size:14px;color:#C7D5E3;transition:color var(--ease)}
.footer-list a:hover{color:#fff}
.footer-bottom{
  margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,.10);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
}
.footer-bottom p{font-size:13px;color:#9BB0C6}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:70;
  width:44px;height:44px;border-radius:50%;background:var(--primary);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 10px 24px rgba(30,82,136,.28);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity var(--ease-move),transform var(--ease-move),visibility var(--ease-move),background var(--ease);
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--primary-dark)}
.to-top svg{width:20px;height:20px;fill:none;stroke:#fff;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .hero h1{font-size:40px}
}
@media (max-width:1023px){
  h2{font-size:26px}
  .section{padding:72px 0}
  .nav-toggle{display:flex}
  .nav-actions{display:none}
  .nav-links{
    position:absolute;top:calc(100% + 10px);left:0;right:0;
    display:none;flex-direction:column;align-items:stretch;gap:2px;margin:0;
    background:#fff;border:1px solid var(--line);border-radius:0 0 20px 20px;
    padding:10px;box-shadow:var(--sh-2);
  }
  .nav-links.open{display:flex}
  .nav-links a{height:48px;border-radius:var(--r-md);padding:0 16px;justify-content:space-between}
  .nav-links a::after{content:"›";font-size:18px;color:#B7C5D4;line-height:1}
  .nav-links a.active::after{color:var(--primary)}
  .nav-cap{position:relative}
  .hero{padding:126px 0 32px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero h1{font-size:34px}
  .metrics{margin-top:0}
  .metrics-grid{grid-template-columns:repeat(2,1fr)}
  .points-grid{grid-template-columns:1fr}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .cta-band{padding:48px 28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  body{font-size:15px}
  .container{padding:0 16px}
  h1{font-size:28px}
  h2{font-size:23px}
  .section{padding:56px 0}
  .crumb{padding:112px 0 0}
  .hero{padding:116px 0 28px}
  .hero h1{font-size:29px}
  .hero .sub{font-size:16px}
  .hero-cta .btn{width:100%}
  .hero-trust{gap:16px}
  .metrics-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .form-card{padding:24px 20px}
  .cta-band{padding:40px 20px;border-radius:var(--r-lg)}
  .footer{padding:48px 0 24px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  table.compare thead{display:none}
  table.compare,table.compare tbody,table.compare tr,table.compare td{display:block;width:100%}
  table.compare tbody tr{
    border-top:1px solid var(--split);padding:14px 16px;
  }
  table.compare tbody tr:first-child{border-top:0}
  table.compare tbody td{border-top:0;padding:6px 0}
  table.compare tbody td:first-child{padding-top:0;font-size:15px}
  table.compare tbody td[data-th]::before{
    content:attr(data-th) "：";color:var(--muted);font-size:13px;
  }
  .to-top{right:16px;bottom:16px}
}

/* roulang page: category2 */
:root{
  --brand:#1E5288;
  --brand-deep:#14365C;
  --brand-light:#E7F0FA;
  --jade:#17A38A;
  --amber:#C8871F;
  --danger:#C0392B;
  --ink:#0F1B2A;
  --text:#33475B;
  --muted:#6B7C90;
  --line:#E3EAF2;
  --divide:#EEF3F8;
  --bg:#F7F9FC;
  --card:#FFFFFF;
  --dark:#10243A;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:20px;
  --r-pill:999px;
  --sh1:0 1px 2px rgba(15,27,42,.04),0 8px 24px rgba(15,27,42,.06);
  --sh2:0 16px 40px rgba(15,27,42,.10);
  --sh-nav:0 8px 28px rgba(15,27,42,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
body.nav-open{overflow:hidden}
h1,h2,h3,h4{margin:0;color:var(--ink);line-height:1.28;letter-spacing:-0.01em;font-weight:600}
p{margin:0}
ul,ol{margin:0;padding:0}
li{list-style:none}
a{color:var(--brand);text-decoration:none;transition:color .18s ease-out}
img{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
svg{display:block}
:focus-visible{outline:3px solid rgba(30,82,136,.32);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.tnum{font-variant-numeric:tabular-nums}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-pill);
  border:1px solid transparent;background:transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(30,82,136,.22)}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px);box-shadow:0 14px 30px rgba(30,82,136,.26)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(30,82,136,.20)}
.btn-ghost{border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover{background:var(--brand-light);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn:disabled{background:var(--line);color:#9AA9B8;border-color:var(--line);cursor:not-allowed;transform:none;box-shadow:none}
.btn.loading{pointer-events:none}
.btn.loading::after{
  content:"";width:16px;height:16px;border-radius:50%;
  border:2px solid rgba(255,255,255,.45);border-top-color:#fff;
  animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;
  border-radius:6px;background:var(--brand-light);color:var(--brand);
  font-size:12px;font-weight:600;letter-spacing:.08em;
}
.badge-jade{background:rgba(23,163,138,.12);color:#0F7A67}

/* ---------- 悬浮胶囊导航 ---------- */
.nav-wrap{
  position:fixed;top:16px;left:0;right:0;z-index:100;
  display:flex;justify-content:center;
  transition:top .22s var(--ease);
}
.nav-wrap.scrolled{top:10px}
.nav-cap{
  width:calc(100% - 32px);max-width:1120px;height:64px;
  display:flex;align-items:center;gap:20px;
  padding:0 20px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid var(--line);
  box-shadow:var(--sh-nav);
  transition:height .22s var(--ease),background .22s var(--ease),border-radius .22s var(--ease);
}
.nav-wrap.scrolled .nav-cap{height:56px;background:rgba(255,255,255,.94)}
.nav-logo{order:0;display:flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto}
.logo-mark{
  width:32px;height:32px;border-radius:10px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-light);color:var(--brand);
}
.logo-mark svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.logo-text{font-size:17px;font-weight:700;letter-spacing:-0.01em;color:var(--ink)}
.nav-links{order:2;display:flex;align-items:center;gap:4px;flex:1 1 auto}
.nav-links li{list-style:none}
.nav-links a{
  display:flex;align-items:center;min-height:44px;padding:0 14px;
  border-radius:var(--r-pill);font-size:15px;font-weight:500;color:var(--text);
  transition:background .18s ease-out,color .18s ease-out;
}
.nav-links a:hover{background:var(--brand-light);color:var(--brand)}
.nav-links a.active{background:var(--brand-light);color:var(--brand);font-weight:600}
.nav-actions{order:3;display:flex;align-items:center;gap:14px;flex:0 0 auto;margin-left:auto}
.nav-text-link{
  display:inline-flex;align-items:center;min-height:44px;padding:0 4px;
  font-size:14px;font-weight:500;color:var(--muted);
  text-decoration:underline;text-underline-offset:4px;text-decoration-color:rgba(107,124,144,.4);
}
.nav-text-link:hover{color:var(--brand);text-decoration-color:var(--brand)}
.nav-toggle{
  order:1;display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;margin-left:auto;padding:0 10px;
  background:transparent;border:1px solid var(--line);border-radius:12px;cursor:pointer;
}
.nav-toggle span{display:block;height:1.5px;width:100%;background:var(--ink);border-radius:2px;transition:transform .22s var(--ease),opacity .18s ease-out}
.nav-wrap.open .nav-toggle span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.nav-wrap.open .nav-toggle span:nth-child(2){opacity:0}
.nav-wrap.open .nav-toggle span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}

/* ---------- 首屏 ---------- */
.hero-slim{
  position:relative;
  padding:176px 0 24px;
  text-align:center;
  background:
    radial-gradient(920px 420px at 50% -12%, var(--brand-light) 0%, rgba(231,240,250,0) 72%),
    var(--bg);
}
.hero-slim .badge{margin-bottom:22px}
.hero-slim h1{
  font-size:48px;
  max-width:860px;
  margin:0 auto 20px;
}
.hero-sub{
  max-width:660px;margin:0 auto 32px;
  font-size:17px;line-height:1.85;color:var(--muted);
}
.hero-actions{display:flex;justify-content:center;gap:12px;flex-wrap:wrap}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0}
.section-tight{padding-top:64px}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{
  position:relative;
  padding-left:16px;
  font-size:30px;
  margin-bottom:14px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.34em;
  width:3px;height:20px;border-radius:2px;background:var(--brand);
}
.section-head p{font-size:16px;color:var(--muted);line-height:1.85}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head.center h2{padding-left:0}
.section-head.center h2::before{display:none}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;max-width:880px;margin:0 auto}
.timeline::before{
  content:"";position:absolute;left:19px;top:14px;bottom:14px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,var(--brand) 0%,rgba(30,82,136,.16) 100%);
}
.timeline li{position:relative;padding:0 0 44px 76px}
.timeline li:last-child{padding-bottom:0}
.tl-index{
  position:absolute;left:0;top:0;width:40px;height:40px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;background:var(--card);border:1px solid var(--brand);
  color:var(--brand);font-size:14px;font-weight:600;font-variant-numeric:tabular-nums;
  box-shadow:0 0 0 6px rgba(231,240,250,.9);
}
.timeline li h3{font-size:19px;margin-bottom:8px}
.timeline li p{font-size:15px;color:var(--muted);line-height:1.85;max-width:640px}
.tl-note{
  display:inline-flex;align-items:center;gap:8px;margin-top:12px;
  font-size:13px;color:var(--brand);background:var(--brand-light);
  border-radius:var(--r-sm);padding:6px 12px;
}

/* ---------- 图文交替 ---------- */
.split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:center;
  padding:36px 0;
}
.split + .split{border-top:1px solid var(--divide)}
.split.reverse .split-media{order:2}
.split-media img{
  width:100%;aspect-ratio:16 / 10;object-fit:cover;
  border-radius:14px;box-shadow:var(--sh1);
}
.split-body .num-tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:6px;background:var(--divide);color:var(--muted);
  font-size:12px;font-weight:600;letter-spacing:.08em;margin-bottom:14px;
}
.split-body h3{font-size:24px;margin-bottom:12px}
.split-body p{font-size:15.5px;line-height:1.9;color:var(--muted)}
.split-list{margin-top:20px;display:grid;gap:10px}
.split-list li{position:relative;padding-left:24px;font-size:15px;color:var(--text)}
.split-list li::before{
  content:"";position:absolute;left:4px;top:.68em;
  width:8px;height:8px;border-radius:50%;
  background:var(--card);border:2px solid var(--brand);
}

/* ---------- 数据小卡 ---------- */
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.stat-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh1);padding:28px 24px 24px;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--sh2)}
.stat-card .num{
  font-size:40px;font-weight:600;line-height:1.1;color:var(--brand);
  font-variant-numeric:tabular-nums;
}
.stat-card .num small{font-size:16px;font-weight:500;color:var(--muted);margin-left:4px}
.stat-card h3{font-size:17px;margin:12px 0 8px}
.stat-card p{font-size:14.5px;color:var(--muted);line-height:1.8}
.stat-bar{height:3px;border-radius:2px;margin-top:20px;background:linear-gradient(90deg,var(--brand),var(--jade))}

/* ---------- 转化表单 ---------- */
.contact{background:var(--brand-light);padding:96px 0}
.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start}
.contact-intro h2{position:relative;padding-left:16px;font-size:30px;margin-bottom:16px}
.contact-intro h2::before{content:"";position:absolute;left:0;top:.34em;width:3px;height:20px;border-radius:2px;background:var(--brand)}
.contact-intro > p{font-size:15.5px;color:var(--text);line-height:1.9;max-width:420px}
.contact-points{margin-top:26px;display:grid;gap:14px}
.contact-points li{position:relative;padding-left:30px;font-size:15px;color:var(--text)}
.contact-points li svg{
  position:absolute;left:0;top:.28em;width:20px;height:20px;
  fill:none;stroke:var(--jade);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;
}
.contact-note{
  margin-top:28px;padding:16px 18px;border-radius:var(--r-md);
  background:rgba(255,255,255,.7);border:1px solid var(--line);
  font-size:13.5px;color:var(--muted);line-height:1.8;
}
.form-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh1);padding:32px;
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:16px}
.field label{display:block;margin-bottom:8px;font-size:14px;font-weight:500;color:var(--ink)}
.field input,.field select,.field textarea{
  width:100%;height:44px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-md);background:#fff;
  font-size:15px;color:var(--text);
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.field textarea{height:auto;min-height:112px;padding:12px 14px;line-height:1.7;resize:vertical}
.field select{
  appearance:none;-webkit-appearance:none;padding-right:40px;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236B7C90' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><path d='M6 9l6 6 6-6'/></svg>");
  background-repeat:no-repeat;background-position:right 14px center;
}
.field input::placeholder,.field textarea::placeholder{color:#9AA9B8}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(30,82,136,.18);
}
.field.invalid input,.field.invalid select,.field.invalid textarea{
  border-color:var(--danger);box-shadow:0 0 0 3px rgba(192,57,43,.12);
}
.field input:disabled,.field select:disabled,.field textarea:disabled{
  background:var(--line);color:#9AA9B8;cursor:not-allowed;
}
.field .err{display:none;margin-top:6px;font-size:12px;color:var(--danger)}
.field.invalid .err{display:block}
.agree{display:flex;align-items:flex-start;gap:10px;margin:6px 0 20px;font-size:13px;color:var(--muted);line-height:1.7}
.agree input{width:18px;height:18px;margin-top:3px;accent-color:var(--brand);flex:0 0 auto}
.agree-err{display:none;margin:-12px 0 16px;font-size:12px;color:var(--danger)}
.agree-err.show{display:block}
.form-ok{text-align:center;padding:20px 8px}
.form-ok[hidden]{display:none}
.ok-icon{
  width:56px;height:56px;margin:0 auto 18px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(23,163,138,.12);color:var(--jade);
}
.ok-icon svg{width:26px;height:26px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.form-ok h3{font-size:20px;margin-bottom:10px}
.form-ok p{font-size:14.5px;color:var(--muted);line-height:1.8;max-width:400px;margin:0 auto}

/* ---------- 页脚 ---------- */
.footer{background:var(--dark);color:#C7D5E3;padding:64px 0 32px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .logo-mark{background:rgba(255,255,255,.10);color:#fff}
.footer-brand .logo-text{color:#fff;font-size:17px;font-weight:700}
.footer h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600}
.footer p{font-size:14px;line-height:1.85;color:#C7D5E3;max-width:340px}
.footer-list{display:grid;gap:10px}
.footer-list a{font-size:14px;color:#C7D5E3}
.footer-list a:hover{color:#fff}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  margin-top:44px;padding-top:24px;border-top:1px solid rgba(255,255,255,.10);
}
.footer-bottom p{font-size:13px;color:#93A6BA;max-width:none}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:90;
  width:44px;height:44px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--line);box-shadow:var(--sh1);
  color:var(--brand);cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--brand-light)}
.to-top svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{max-width:1140px}
}
@media (max-width:1023px){
  .nav-cap{
    height:auto;min-height:64px;flex-wrap:wrap;
    padding:12px 16px;border-radius:var(--r-xl);gap:12px;
  }
  .nav-toggle{display:flex}
  .nav-links,.nav-actions{
    display:none;width:100%;flex-direction:column;align-items:stretch;
    gap:2px;margin-left:0;
  }
  .nav-wrap.open .nav-links,.nav-wrap.open .nav-actions{display:flex}
  .nav-wrap.open .nav-cap{background:rgba(255,255,255,.97)}
  .nav-links a{
    justify-content:space-between;min-height:48px;padding:0 14px;
    border-radius:var(--r-md);font-size:15.5px;
  }
  .nav-links a::after{content:"›";color:var(--muted);font-size:18px;line-height:1}
  .nav-actions{padding-top:12px;border-top:1px solid var(--divide);gap:10px}
  .nav-actions .btn{width:100%}
  .nav-text-link{min-height:44px;justify-content:center}

  .hero-slim{padding:150px 0 16px}
  .hero-slim h1{font-size:36px}
  .section{padding:72px 0}
  .contact{padding:72px 0}
  .section-head h2,.contact-intro h2{font-size:26px}
  .split{grid-template-columns:1fr;gap:24px;padding:32px 0}
  .split.reverse .split-media{order:0}
  .contact-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer p{max-width:none}
}
@media (max-width:767px){
  body{font-size:15px}
  .container{padding:0 16px}
  .hero-slim{padding:132px 0 8px}
  .hero-slim h1{font-size:28px;margin-bottom:16px}
  .hero-sub{font-size:15.5px;margin-bottom:26px}
  .hero-actions .btn{width:100%}
  .section{padding:56px 0}
  .contact{padding:56px 0}
  .section-head{margin-bottom:32px}
  .section-head h2,.contact-intro h2{font-size:22px}
  .timeline li{padding:0 0 36px 62px}
  .tl-index{width:36px;height:36px;font-size:13px}
  .timeline::before{left:17px}
  .timeline li h3{font-size:17px}
  .split-body h3{font-size:20px}
  .stat-row{grid-template-columns:1fr}
  .stat-card .num{font-size:32px}
  .form-row{grid-template-columns:1fr}
  .form-card{padding:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .to-top{right:16px;bottom:16px}
}
@media (max-width:520px){
  .hero-slim h1{font-size:25px}
  .badge{font-size:11px}
  .logo-text{font-size:15.5px}
}

/* roulang page: category3 */
:root{
  --primary:#1E5288;--primary-dark:#14365C;--primary-light:#E7F0FA;
  --jade:#17A38A;--amber:#C8871F;--danger:#C0392B;
  --text:#0F1B2A;--body-text:#33475B;--muted:#6B7C90;
  --border:#E3EAF2;--divider:#EEF3F8;
  --bg:#F7F9FC;--card:#FFFFFF;--deep:#10243A;
  --r-sm:8px;--r-md:12px;--r-lg:16px;--r-xl:20px;--pill:999px;
  --sh-1:0 1px 2px rgba(15,27,42,.04),0 8px 24px rgba(15,27,42,.06);
  --sh-2:0 16px 40px rgba(15,27,42,.10);
  --sh-nav:0 8px 28px rgba(15,27,42,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--body-text);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;color:var(--text);line-height:1.28;letter-spacing:-.01em;font-weight:700}
p{margin:0}
:focus-visible{outline:3px solid rgba(30,82,136,.3);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 悬浮胶囊导航 ---------- */
.nav-wrap{position:fixed;top:16px;left:0;right:0;z-index:60;display:flex;justify-content:center;padding:0 16px;transition:top .22s var(--ease)}
.nav-cap{
  position:relative;width:100%;max-width:1120px;height:64px;display:flex;align-items:center;gap:20px;
  padding:0 12px 0 20px;border-radius:var(--pill);background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid var(--border);box-shadow:var(--sh-nav);
  transition:height .22s var(--ease),background .22s ease-out;
}
.nav-wrap.shrink{top:10px}
.nav-wrap.shrink .nav-cap{height:56px;background:rgba(255,255,255,.94)}
.nav-logo{display:inline-flex;align-items:center;gap:10px;min-height:44px;flex:none}
.logo-mark{width:32px;height:32px;border-radius:10px;background:var(--primary);display:inline-flex;align-items:center;justify-content:center;flex:none}
.logo-mark svg{width:18px;height:18px;fill:none;stroke:#fff;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.logo-text{font-size:17px;font-weight:700;color:var(--text);letter-spacing:-.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;list-style:none;margin:0 0 0 auto;padding:0}
.nav-links a{display:inline-flex;align-items:center;min-height:40px;padding:0 14px;font-size:15px;color:var(--body-text);border-radius:var(--pill);transition:color .18s ease-out,background .18s ease-out}
.nav-links a:hover{color:var(--primary);background:var(--primary-light)}
.nav-links a.active{color:var(--primary);font-weight:600;background:var(--primary-light)}
.nav-actions{display:flex;align-items:center;gap:12px;flex:none}
.nav-text-link{font-size:15px;color:var(--body-text);padding:8px 4px;transition:color .18s ease-out}
.nav-text-link:hover{color:var(--primary)}
.nav-toggle{display:none;width:44px;height:44px;flex-direction:column;justify-content:center;align-items:center;gap:5px;background:transparent;border:1px solid var(--border);border-radius:var(--r-md);cursor:pointer;margin-left:auto}
.nav-toggle span{display:block;width:20px;height:1.5px;border-radius:2px;background:var(--text);transition:transform .22s var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;
  border-radius:var(--pill);border:1px solid transparent;font-size:15px;font-weight:600;cursor:pointer;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .18s ease-out,color .18s ease-out;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--sh-1)}
.btn-ghost{background:#fff;color:var(--primary);border-color:var(--primary)}
.btn-ghost:hover{background:var(--primary-light);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn[disabled]{background:var(--border);color:#9AA9B8;box-shadow:none;cursor:not-allowed;transform:none}
.btn.loading::after{content:"";width:16px;height:16px;border-radius:50%;border:2px solid rgba(255,255,255,.45);border-top-color:#fff;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;font-size:15px}
.link-more svg{width:16px;height:16px;stroke:var(--primary);stroke-width:1.8;fill:none;transition:transform .22s var(--ease)}
.link-more:hover svg{transform:translateX(4px)}

/* ---------- Hero ---------- */
.hero{position:relative;padding:184px 0 76px;overflow:hidden}
.hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-2.png') center/cover no-repeat}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(247,249,252,.93) 0%,rgba(247,249,252,.97) 60%,var(--bg) 100%)}
.hero-inner{position:relative;max-width:800px;margin:0 auto;text-align:center}
.crumbs{display:flex;justify-content:center;gap:8px;font-size:14px;color:var(--muted);margin-bottom:28px;flex-wrap:wrap}
.crumbs a{color:var(--muted);transition:color .18s ease-out}
.crumbs a:hover{color:var(--primary)}
.crumbs .sep{color:var(--border)}
.crumbs .now{color:var(--muted)}
.badge{display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;border-radius:var(--pill);background:var(--primary-light);color:var(--primary);font-size:12px;font-weight:600;letter-spacing:.08em}
.hero h1{margin:20px 0 0;font-size:clamp(28px,4.2vw,46px);line-height:1.28;letter-spacing:-.01em}
.hero-sub{margin:18px auto 0;max-width:640px;font-size:17px;line-height:1.85;color:var(--body-text)}
.hero-cta{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin-top:32px}
.hero-trust{display:flex;justify-content:center;gap:26px;flex-wrap:wrap;margin-top:30px;font-size:14px;color:var(--muted)}
.hero-trust span{display:inline-flex;align-items:center;gap:8px}
.hero-trust svg{width:16px;height:16px;stroke:var(--jade);stroke-width:1.8;fill:none}

/* ---------- 板块与标题 ---------- */
.section{padding:96px 0}
.section.tight{padding-top:0}
.sec-head{max-width:760px;margin-bottom:40px}
.sec-head.center{text-align:center;margin-left:auto;margin-right:auto}
.eyebrow{display:block;font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--muted)}
.sec-head h2{margin-top:12px}
h2{position:relative;padding-left:14px;font-size:30px;line-height:1.28}
h2::before{content:"";position:absolute;left:0;top:.3em;width:3px;height:20px;border-radius:2px;background:var(--primary)}
.sec-head p{margin-top:14px;font-size:16px;color:var(--body-text)}

/* ---------- 目录 + 清单 ---------- */
.split{display:grid;grid-template-columns:300px minmax(0,1fr);gap:48px;align-items:start}
.toc{position:sticky;top:104px;background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:24px}
.toc h3{font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--muted)}
.toc ol{list-style:none;margin:14px 0 0;padding:0;display:flex;flex-direction:column;gap:2px}
.toc a{display:flex;align-items:center;min-height:44px;padding:0 12px;border-radius:var(--r-md);font-size:15px;color:var(--body-text);transition:background .18s ease-out,color .18s ease-out}
.toc a:hover{background:var(--primary-light);color:var(--primary)}
.toc .toc-note{margin-top:18px;padding-top:18px;border-top:1px solid var(--divider);font-size:13px;color:var(--muted);line-height:1.7}
.check-groups{display:flex;flex-direction:column;gap:28px}
.check-group{background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:28px 28px 24px}
.check-group h2{font-size:20px;padding-left:12px}
.check-group h2::before{height:16px}
.check-list{list-style:none;margin:18px 0 0;padding:0;display:flex;flex-direction:column;gap:12px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:16px;line-height:1.75}
.check-list svg{width:20px;height:20px;flex:none;margin-top:5px;stroke:var(--jade);stroke-width:1.8;fill:none}

/* ---------- 对照表 ---------- */
.table-card{background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden}
table{width:100%;border-collapse:collapse;font-size:15px}
thead th{background:var(--divider);color:var(--text);font-weight:600;text-align:left;padding:0 20px;height:52px;white-space:nowrap}
tbody td{padding:15px 20px;border-top:1px solid var(--divider);color:var(--body-text);vertical-align:top}
tbody tr{transition:background .18s ease-out}
tbody tr:hover{background:#FAFCFE}
table .num{font-variant-numeric:tabular-nums}
.table-foot{padding:16px 20px;border-top:1px solid var(--divider);font-size:13px;color:var(--muted);background:#FCFDFE}

/* ---------- Bento ---------- */
.bento{display:grid;grid-template-columns:1.35fr 1fr;grid-auto-rows:minmax(0,auto);gap:24px}
.bento-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;transition:transform .22s var(--ease),box-shadow .22s var(--ease)}
.bento-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.bento-main{grid-row:span 2}
.bento-main>img{width:100%;aspect-ratio:16/9;object-fit:cover}
.bento-card.small{flex-direction:row}
.bento-card.small>img{flex:0 0 40%;align-self:stretch;height:auto;min-height:170px;object-fit:cover}
.bento-body{padding:24px 28px 28px;display:flex;flex-direction:column;gap:12px}
.bento-body p{font-size:15px;line-height:1.8;color:var(--body-text)}
.bento-body .link-more{margin-top:auto}
.tag{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-sm);background:var(--primary-light);color:var(--primary);font-size:12px;font-weight:600;letter-spacing:.02em;width:fit-content}

/* ---------- FAQ ---------- */
.faq-list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
details{background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);padding:14px 20px;transition:box-shadow .22s var(--ease),border-color .18s ease-out}
details:hover{border-color:#D3E0EE}
details[open]{box-shadow:var(--sh-1)}
summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;min-height:44px;font-size:17px;font-weight:600;color:var(--text)}
summary::-webkit-details-marker{display:none}
summary::after{content:"＋";font-size:20px;font-weight:400;color:var(--primary);transition:transform .22s var(--ease)}
details[open] summary::after{transform:rotate(45deg)}
details p{margin-top:12px;font-size:15px;line-height:1.8;color:var(--body-text)}

/* ---------- 转化表单 ---------- */
.contact-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:48px;align-items:start}
.contact-intro h2{margin-bottom:16px}
.contact-intro>p{font-size:16px;color:var(--body-text)}
.point-list{list-style:none;margin:24px 0 0;padding:0;display:flex;flex-direction:column;gap:14px}
.point-list li{display:flex;gap:12px;align-items:flex-start;font-size:16px;color:var(--body-text)}
.point-list svg{width:20px;height:20px;flex:none;margin-top:5px;stroke:var(--jade);stroke-width:1.8;fill:none}
.contact-line{margin-top:26px;padding-top:22px;border-top:1px solid var(--border);font-size:14px;color:var(--muted);line-height:1.8}
.form-card{background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:32px}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--text);margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;height:44px;padding:0 14px;border:1px solid var(--border);border-radius:var(--r-md);
  background:#fff;color:var(--text);font-size:15px;transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.field textarea{height:auto;padding:12px 14px;line-height:1.7;resize:vertical}
.field select{appearance:none;background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236B7C90' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:40px}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(30,82,136,.15)}
.field.error input,.field.error select,.field.error textarea{border-color:var(--danger)}
.err-msg{display:none;margin-top:6px;font-size:12px;color:var(--danger)}
.field.error .err-msg{display:block}
.field.check{display:flex;gap:10px;align-items:flex-start;margin-bottom:22px}
.field.check input{width:18px;height:18px;flex:none;margin-top:3px;accent-color:var(--primary)}
.field.check label{margin:0;font-weight:400;font-size:14px;color:var(--body-text);line-height:1.7}
.form-card .btn{width:100%}
.form-ok{text-align:center;padding:40px 8px}
.form-ok svg{width:48px;height:48px;margin:0 auto 16px;stroke:var(--jade);stroke-width:1.5;fill:none}
.form-ok h3{font-size:20px;margin-bottom:10px}
.form-ok p{font-size:15px;color:var(--muted)}

/* ---------- 页脚 ---------- */
.footer{background:var(--deep);color:#C7D5E3;padding:64px 0 32px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer .logo-text{color:#fff}
.footer .logo-mark{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18)}
.footer h4{color:#fff;font-size:15px;margin-bottom:14px;letter-spacing:0}
.footer p{font-size:14px;line-height:1.9;color:#C7D5E3}
.footer-list{display:flex;flex-direction:column;gap:6px}
.footer-list a{font-size:14px;color:#C7D5E3;padding:6px 0;transition:color .18s ease-out,transform .18s var(--ease)}
.footer-list a:hover{color:#fff;transform:translateX(3px)}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,.10);font-size:13px;color:#93A7BC}
.footer-bottom p{font-size:13px;color:#93A7BC}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;width:44px;height:44px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;background:#fff;border:1px solid var(--border);
  box-shadow:var(--sh-1);cursor:pointer;opacity:0;visibility:hidden;transition:opacity .22s ease-out,transform .22s var(--ease);z-index:55;
}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.to-top svg{width:20px;height:20px;stroke:var(--primary);stroke-width:1.8;fill:none}

/* ---------- 断点 ---------- */
@media (max-width:1279px){
  .container{max-width:100%}
}
@media (max-width:1023px){
  .nav-toggle{display:flex}
  .nav-actions .nav-text-link{display:none}
  .nav-links{
    position:absolute;top:calc(100% + 12px);left:0;right:0;display:none;flex-direction:column;align-items:stretch;
    gap:2px;margin:0;padding:10px 12px 16px;background:rgba(255,255,255,.98);border:1px solid var(--border);
    border-radius:0 0 var(--r-xl) var(--r-xl);box-shadow:var(--sh-2);
  }
  .nav-links.open{display:flex}
  .nav-links a{min-height:48px;border-radius:var(--r-md);justify-content:space-between}
  .nav-links a::after{content:"›";color:var(--muted);font-size:18px}
  .section{padding:72px 0}
  .split{grid-template-columns:1fr;gap:32px}
  .toc{position:static}
  .toc ol{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px}
  .contact-grid{grid-template-columns:1fr;gap:32px}
  .bento{grid-template-columns:1fr}
  .bento-main{grid-row:auto}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px 24px}
}
@media (max-width:767px){
  body{font-size:15px}
  .container{padding:0 16px}
  .section{padding:56px 0}
  .hero{padding:150px 0 52px}
  h2{font-size:24px}
  .sec-head{margin-bottom:28px}
  .toc ol{grid-template-columns:1fr}
  .check-group{padding:22px 20px}
  .check-group h2{font-size:18px}
  .form-card{padding:24px 20px}
  .bento-body{padding:20px 22px 24px}
  .footer-grid{grid-template-columns:1fr}
  .footer{padding:48px 0 28px}
  .footer-bottom{margin-top:32px}
  .to-top{right:16px;bottom:16px}
  .table-card{background:transparent;border:0;box-shadow:none}
  thead{display:none}
  tbody tr{display:block;background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);box-shadow:var(--sh-1);margin-bottom:12px;padding:8px 0}
  tbody td{display:flex;justify-content:space-between;gap:16px;border:0;padding:9px 18px;font-size:15px}
  tbody td::before{content:attr(data-label);flex:none;font-size:13px;font-weight:600;color:var(--text)}
  .table-foot{border:0;background:transparent;padding:4px 4px 0}
}
@media (max-width:520px){
  .hero-trust{gap:14px}
  .btn{width:100%;padding:0 18px}
  .nav-cap{padding:0 10px 0 14px}
  .bento-card.small{flex-direction:column}
  .bento-card.small>img{flex:none;width:100%;min-height:0;aspect-ratio:16/9}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
}