/* roulang page: index */
:root {
    --brand: #2F6F9E;
    --brand-deep: #245A82;
    --brand-soft: #DCEBF5;
    --brand-tint: #E8F3FA;
    --ink: #12212E;
    --subink: #4A5B68;
    --line: #E1EAF1;
    --mist: #F7FAFC;
    --surface: #FFFFFF;
    --teal: #3D9A8B;
    --sand: #E89B5B;
    --radius-card: 18px;
    --radius-pic: 16px;
    --radius-btn: 12px;
    --shadow-soft: 0 10px 30px rgba(18, 33, 46, 0.08);
    --shadow-lift: 0 16px 40px rgba(18, 33, 46, 0.12);
    --header-h: 72px;
    --tab-h: 64px;
  }

  *, *::before, *::after { box-sizing: border-box; }

  html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

  body {
    margin: 0;
    padding-top: var(--header-h);
    padding-bottom: calc(var(--tab-h) + env(safe-area-inset-bottom, 0px) + 16px);
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
    font-size: 16px;
    line-height: 1.8;
    color: var(--ink);
    background: var(--surface);
    -webkit-font-smoothing: antialiased;
  }

  img { max-width: 100%; display: block; }
  a { color: inherit; text-decoration: none; }
  button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
  ul, ol { margin: 0; padding: 0; list-style: none; }
  h1, h2, h3, h4, p { margin: 0; }

  :focus-visible {
    outline: 2px solid rgba(47, 111, 158, 0.5);
    outline-offset: 3px;
    border-radius: 8px;
  }

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

  @media (min-width: 1024px) {
    .shell { padding-left: 32px; padding-right: 32px; }
    body { padding-bottom: 0; }
  }

  /* ---------- 排版 ---------- */
  .h-display {
    font-size: clamp(32px, 4.4vw, 54px);
    line-height: 1.22;
    font-weight: 800;
    letter-spacing: -0.01em;
  }
  .h2 {
    font-size: clamp(24px, 2.6vw, 32px);
    line-height: 1.32;
    font-weight: 700;
    letter-spacing: -0.01em;
  }
  .h3 {
    font-size: 19px;
    line-height: 1.45;
    font-weight: 700;
  }
  .lede {
    font-size: 17px;
    line-height: 1.8;
    color: var(--subink);
  }
  .body-text { font-size: 16px; line-height: 1.85; color: var(--subink); }
  .meta-text { font-size: 13px; color: var(--subink); }
  .num { font-variant-numeric: tabular-nums; }

  /* ---------- 导航 ---------- */
  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 60;
    height: var(--header-h);
    background: rgba(255, 255, 255, 0.93);
    border-bottom: 1px solid var(--line);
    transition: box-shadow 0.25s ease, background 0.25s ease;
  }
  .site-header.is-scrolled {
    box-shadow: 0 8px 26px rgba(18, 33, 46, 0.08);
  }
  .nav-wrap {
    height: var(--header-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
  }
  .brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
  }
  .brand-mark {
    width: 38px;
    height: 38px;
    border-radius: 11px;
    background: linear-gradient(140deg, #2F6F9E 0%, #3D9A8B 100%);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 6px 16px rgba(47, 111, 158, 0.24);
  }
  .brand-mark svg { width: 22px; height: 22px; }
  .brand-name {
    font-size: 18px;
    font-weight: 800;
    letter-spacing: -0.01em;
    color: var(--ink);
    white-space: nowrap;
  }
  .nav-desktop {
    display: none;
    align-items: center;
    gap: 4px;
  }
  .nav-link {
    position: relative;
    display: inline-flex;
    align-items: center;
    height: 40px;
    padding: 0 12px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 500;
    color: var(--subink);
    transition: color 0.18s ease, background 0.18s ease;
    white-space: nowrap;
  }
  .nav-link:hover { color: var(--brand); background: var(--mist); }
  .nav-link.is-active { color: var(--brand); font-weight: 600; }
  .nav-link.is-active::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 2px;
    transform: translateX(-50%);
    width: 18px;
    height: 2px;
    border-radius: 2px;
    background: var(--brand);
  }
  .nav-cta { display: none; height: 42px; padding: 0 18px; font-size: 14px; }

  @media (min-width: 1024px) {
    .nav-desktop { display: flex; }
    .nav-cta { display: inline-flex; }
  }

  /* ---------- 按钮 ---------- */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 48px;
    padding: 0 22px;
    border-radius: var(--radius-btn);
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0;
    transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
    white-space: nowrap;
    min-height: 44px;
  }
  .btn-primary {
    background: var(--brand);
    color: #fff;
    box-shadow: 0 8px 20px rgba(47, 111, 158, 0.22);
  }
  .btn-primary:hover { background: var(--brand-deep); transform: translateY(-1px); box-shadow: 0 12px 26px rgba(47, 111, 158, 0.28); }
  .btn-primary:active { transform: translateY(0); box-shadow: 0 6px 14px rgba(47, 111, 158, 0.22); }
  .btn-ghost {
    background: #fff;
    color: var(--ink);
    border: 1px solid var(--line);
  }
  .btn-ghost:hover { background: var(--brand-tint); border-color: #C7DCEB; color: var(--brand-deep); }
  .btn-ghost:active { transform: translateY(1px); }
  .btn-block { width: 100%; }

  .link-arrow {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 600;
    color: var(--brand);
    transition: color 0.18s ease;
  }
  .link-arrow svg { transition: transform 0.2s ease; }
  .link-arrow:hover { color: var(--brand-deep); }
  .link-arrow:hover svg { transform: translateX(2px); }

  /* ---------- 徽章 / 标签 ---------- */
  .badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    height: 24px;
    padding: 0 10px;
    border-radius: 999px;
    background: var(--brand-tint);
    color: var(--brand-deep);
    font-size: 12px;
    font-weight: 600;
    line-height: 1;
    white-space: nowrap;
  }
  .badge-warm {
    background: #FDF1E6;
    color: #B76A25;
  }
  .badge-teal {
    background: #E6F3F1;
    color: #2C7A6E;
  }

  /* ---------- 板块 ---------- */
  .section { padding-top: 56px; padding-bottom: 56px; scroll-margin-top: 88px; }
  @media (min-width: 1024px) {
    .section { padding-top: 88px; padding-bottom: 88px; }
  }
  .section-head { max-width: 720px; }
  .section-head .h2 { margin-bottom: 14px; }
  .eyebrow {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--brand);
    margin-bottom: 12px;
  }

  /* ---------- Hero ---------- */
  .hero {
    position: relative;
    overflow: hidden;
    background:
      radial-gradient(680px 420px at 10% -12%, #E8F3FA 0%, rgba(232, 243, 250, 0) 70%),
      radial-gradient(560px 380px at 94% 6%, #F1F7FB 0%, rgba(241, 247, 251, 0) 72%),
      #FFFFFF;
    padding-top: 40px;
    padding-bottom: 56px;
  }
  .hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image: radial-gradient(#D8E5F0 1px, transparent 1px);
    background-size: 22px 22px;
    opacity: 0.5;
    pointer-events: none;
    -webkit-mask-image: linear-gradient(to bottom, #000 0%, transparent 76%);
    mask-image: linear-gradient(to bottom, #000 0%, transparent 76%);
  }
  .hero-inner {
    position: relative;
    z-index: 1;
    display: grid;
    gap: 36px;
    align-items: center;
  }
  @media (min-width: 1024px) {
    .hero { padding-top: 64px; padding-bottom: 88px; }
    .hero-inner { grid-template-columns: 55fr 45fr; gap: 56px; }
  }
  .hero-title { margin: 16px 0 18px; }
  .hero-sub { max-width: 560px; font-size: 17px; line-height: 1.8; color: var(--subink); }
  .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
  .hero-actions .btn { flex: 1 1 180px; }
  @media (min-width: 640px) {
    .hero-actions .btn { flex: 0 0 auto; }
  }
  .trust-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    margin-top: 30px;
    font-size: 13px;
    color: var(--subink);
  }
  .trust-row li { position: relative; padding-left: 14px; }
  .trust-row li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 14px;
    border-radius: 2px;
    background: var(--brand-soft);
  }
  .trust-row li:first-child { padding-left: 0; }
  .trust-row li:first-child::before { display: none; }

  .hero-figure {
    position: relative;
    border-radius: 24px;
    overflow: hidden;
    background: var(--brand-tint);
    border: 1px solid #E7F0F6;
    box-shadow: var(--shadow-soft);
    aspect-ratio: 4 / 3;
  }
  .hero-figure img { width: 100%; height: 100%; object-fit: cover; }
  .hero-figure .float-badge {
    position: absolute;
    left: 16px;
    top: 16px;
    background: rgba(255, 255, 255, 0.94);
    color: var(--brand-deep);
    border-radius: 999px;
    padding: 6px 14px;
    font-size: 12px;
    font-weight: 700;
    box-shadow: 0 6px 16px rgba(18, 33, 46, 0.12);
  }

  /* ---------- 卖点 2×2 错位 ---------- */
  .value-grid { display: grid; gap: 20px; margin-top: 40px; }
  @media (min-width: 1024px) {
    .value-grid { grid-template-columns: 1fr 1fr; gap: 28px 48px; margin-top: 56px; }
    .value-item:nth-child(even) { margin-top: 56px; }
  }
  .value-item {
    display: flex;
    gap: 18px;
    padding: 24px 22px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-soft);
    transition: transform 0.22s ease, box-shadow 0.22s ease;
  }
  .value-item:hover { transform: translateY(-2px); box-shadow: var(--shadow-lift); }
  .value-num {
    flex-shrink: 0;
    font-size: 30px;
    font-weight: 800;
    line-height: 1;
    color: var(--brand-soft);
    font-variant-numeric: tabular-nums;
    letter-spacing: -0.02em;
  }
  .value-item h3 { margin-bottom: 8px; }
  .value-item p { font-size: 15px; line-height: 1.8; color: var(--subink); }

  /* ---------- 演示区 ---------- */
  .demo-grid { display: grid; gap: 32px; margin-top: 40px; align-items: center; }
  @media (min-width: 1024px) {
    .demo-grid { grid-template-columns: 1fr 1.05fr; gap: 56px; margin-top: 56px; }
  }
  .steps { display: grid; gap: 0; }
  .step {
    position: relative;
    display: flex;
    gap: 16px;
    padding-bottom: 28px;
  }
  .step:last-child { padding-bottom: 0; }
  .step::before {
    content: "";
    position: absolute;
    left: 15px;
    top: 34px;
    bottom: 4px;
    width: 2px;
    background: linear-gradient(to bottom, var(--brand-soft), rgba(220, 235, 245, 0.2));
  }
  .step:last-child::before { display: none; }
  .step-dot {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    border-radius: 999px;
    background: var(--brand-tint);
    color: var(--brand-deep);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    border: 1px solid #D3E5F2;
    font-variant-numeric: tabular-nums;
  }
  .step h3 { font-size: 17px; margin-bottom: 6px; }
  .step p { font-size: 15px; color: var(--subink); line-height: 1.8; }

  .device-frame {
    border-radius: 22px;
    border: 1px solid var(--line);
    background: #fff;
    padding: 14px;
    box-shadow: var(--shadow-lift);
  }
  .device-bar {
    display: flex;
    gap: 6px;
    padding: 0 4px 12px;
  }
  .device-bar span {
    width: 9px;
    height: 9px;
    border-radius: 999px;
    background: #DDE8F0;
  }
  .device-shot {
    border-radius: 14px;
    overflow: hidden;
    background: var(--mist);
    aspect-ratio: 16 / 10;
  }
  .device-shot img { width: 100%; height: 100%; object-fit: cover; }

  /* ---------- 证据区 ---------- */
  .stat-strip {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    overflow: hidden;
    margin-top: 36px;
  }
  @media (min-width: 768px) { .stat-strip { grid-template-columns: repeat(4, 1fr); } }
  .stat-cell {
    background: #fff;
    padding: 24px 18px;
    text-align: center;
  }
  .stat-value {
    font-size: clamp(26px, 3vw, 34px);
    font-weight: 800;
    line-height: 1.1;
    color: var(--brand-deep);
    font-variant-numeric: tabular-nums;
    letter-spacing: -0.01em;
  }
  .stat-value em { font-style: normal; font-size: 15px; font-weight: 700; margin-left: 2px; color: var(--brand); }
  .stat-label { margin-top: 8px; font-size: 13px; color: var(--subink); }

  .proof-grid { display: grid; gap: 20px; margin-top: 32px; }
  @media (min-width: 1024px) { .proof-grid { grid-template-columns: 1fr 1fr; gap: 28px; } }
  .proof-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    padding: 26px;
    box-shadow: var(--shadow-soft);
    display: flex;
    flex-direction: column;
    gap: 12px;
    transition: transform 0.22s ease, box-shadow 0.22s ease;
  }
  .proof-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lift); }
  .proof-card h3 { font-size: 18px; line-height: 1.5; }
  .proof-card p { font-size: 15px; line-height: 1.8; color: var(--subink); }
  .proof-card .link-arrow { margin-top: 4px; }

  /* ---------- 分类入口 ---------- */
  .cat-grid { display: grid; gap: 16px; margin-top: 36px; }
  @media (min-width: 640px) { .cat-grid { grid-template-columns: 1fr 1fr; } }
  @media (min-width: 1024px) { .cat-grid { grid-template-columns: repeat(3, 1fr); gap: 20px; } }
  .cat-card {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 24px 22px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-soft);
    transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
  }
  .cat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lift);
    border-color: #C9DEEC;
  }
  .cat-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: var(--brand-tint);
    color: var(--brand-deep);
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
  .cat-icon svg { width: 20px; height: 20px; }
  .cat-card h3 { font-size: 17px; }
  .cat-card p { font-size: 14px; line-height: 1.75; color: var(--subink); }
  .cat-card .link-arrow { margin-top: auto; padding-top: 6px; }

  /* ---------- 价格 ---------- */
  .price-grid { display: grid; gap: 20px; margin-top: 40px; align-items: stretch; }
  @media (min-width: 1024px) {
    .price-grid { grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 56px; align-items: start; }
  }
  .price-card {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: 28px 24px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-soft);
  }
  .price-card.featured {
    border: 1.5px solid var(--brand);
    box-shadow: 0 18px 44px rgba(47, 111, 158, 0.16);
  }
  @media (min-width: 1024px) {
    .price-card.featured { padding: 38px 28px; margin-top: -16px; }
  }
  .price-tag {
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--brand);
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 999px;
  }
  .price-card h3 { font-size: 19px; }
  .price-for { font-size: 13px; color: var(--subink); }
  .price-list { display: grid; gap: 10px; margin: 6px 0 4px; }
  .price-list li {
    display: flex;
    gap: 8px;
    font-size: 14px;
    line-height: 1.7;
    color: var(--subink);
  }
  .price-list li svg { flex-shrink: 0; margin-top: 4px; color: var(--teal); }
  .price-card .btn { margin-top: auto; }

  .compare-wrap {
    margin-top: 32px;
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    overflow: hidden;
    background: #fff;
  }
  .compare-scroll { overflow-x: auto; }
  table.compare {
    width: 100%;
    min-width: 620px;
    border-collapse: collapse;
    font-size: 14px;
  }
  table.compare th,
  table.compare td {
    padding: 14px 18px;
    text-align: left;
    border-bottom: 1px solid var(--line);
    white-space: nowrap;
  }
  table.compare thead th {
    background: var(--mist);
    font-size: 13px;
    font-weight: 700;
    color: var(--subink);
    letter-spacing: 0.02em;
  }
  table.compare tbody tr:last-child td { border-bottom: 0; }
  table.compare tbody th {
    font-weight: 600;
    color: var(--ink);
    background: #fff;
  }
  table.compare td { color: var(--subink); }
  table.compare td.yes { color: var(--brand-deep); font-weight: 600; }
  table.compare td.no { color: #B7C4CE; }

  /* ---------- FAQ ---------- */
  .faq-layout { display: grid; gap: 28px; margin-top: 36px; }
  @media (min-width: 1024px) {
    .faq-layout { grid-template-columns: 1fr 2fr; gap: 56px; margin-top: 48px; align-items: start; }
    .faq-aside { position: sticky; top: 96px; }
  }
  .faq-aside p { font-size: 15px; line-height: 1.85; color: var(--subink); margin-top: 12px; }
  .faq-list { border-top: 1px solid var(--line); }
  .faq-item { border-bottom: 1px solid var(--line); }
  .faq-q {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 2px;
    text-align: left;
    font-size: 16px;
    font-weight: 600;
    line-height: 1.6;
    color: var(--ink);
    transition: color 0.18s ease;
  }
  .faq-q:hover { color: var(--brand); }
  .faq-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    color: var(--brand);
    transition: transform 0.25s ease;
  }
  .faq-q[aria-expanded="true"] .faq-icon { transform: rotate(180deg); }
  .faq-a { padding: 0 2px 20px; }
  .faq-a p { font-size: 15px; line-height: 1.85; color: var(--subink); }
  .faq-a[hidden] { display: none; }

  /* ---------- 最新信息 ---------- */
  .news-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
  }
  .news-grid { display: grid; gap: 20px; margin-top: 32px; }
  @media (min-width: 768px) { .news-grid { grid-template-columns: 1fr 1fr; } }
  @media (min-width: 1024px) { .news-grid { grid-template-columns: repeat(3, 1fr); gap: 24px; } }
  .news-card {
    display: flex;
    flex-direction: column;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    transition: transform 0.22s ease, box-shadow 0.22s ease;
  }
  .news-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lift); }
  .news-thumb {
    aspect-ratio: 16 / 9;
    background: var(--mist);
    overflow: hidden;
  }
  .news-thumb img { width: 100%; height: 100%; object-fit: cover; }
  .news-body { padding: 20px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
  .news-title {
    font-size: 16px;
    font-weight: 700;
    line-height: 1.55;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .news-excerpt {
    font-size: 14px;
    line-height: 1.75;
    color: var(--subink);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .news-foot {
    margin-top: auto;
    padding-top: 8px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    font-size: 13px;
    color: var(--subink);
  }
  .news-empty {
    margin-top: 32px;
    min-height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1.5px dashed #CFE0EC;
    border-radius: var(--radius-card);
    background: var(--mist);
    color: var(--subink);
    font-size: 15px;
  }

  /* ---------- CTA 表单 ---------- */
  .cta-band {
    position: relative;
    overflow: hidden;
    border-radius: 24px;
    background: linear-gradient(135deg, #12212E 0%, #1B3550 60%, #245A82 100%);
    color: #fff;
    padding: 32px 22px;
  }
  @media (min-width: 1024px) { .cta-band { padding: 56px 48px; } }
  .cta-band::after {
    content: "";
    position: absolute;
    right: -80px;
    top: -80px;
    width: 320px;
    height: 320px;
    border-radius: 999px;
    background: radial-gradient(circle, rgba(61, 154, 139, 0.35) 0%, rgba(61, 154, 139, 0) 70%);
    pointer-events: none;
  }
  .cta-grid { position: relative; z-index: 1; display: grid; gap: 32px; }
  @media (min-width: 1024px) { .cta-grid { grid-template-columns: 1fr 1.1fr; gap: 56px; align-items: start; } }
  .cta-band h2 { color: #fff; font-size: clamp(24px, 2.6vw, 32px); line-height: 1.35; font-weight: 700; }
  .cta-band .cta-sub { margin-top: 14px; font-size: 15px; line-height: 1.85; color: #C9D6E0; max-width: 420px; }
  .cta-points { margin-top: 22px; display: grid; gap: 10px; }
  .cta-points li { display: flex; gap: 10px; font-size: 14px; color: #D5E1EA; }
  .cta-points svg { flex-shrink: 0; margin-top: 4px; color: #7FC8BB; }

  .form-card {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 18px;
    padding: 22px;
  }
  @media (min-width: 768px) { .form-card { padding: 26px; } }
  .field { margin-bottom: 16px; }
  .field label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: #D5E1EA;
    margin-bottom: 7px;
  }
  .field input,
  .field select,
  .field textarea {
    width: 100%;
    min-height: 48px;
    padding: 12px 14px;
    border-radius: var(--radius-btn);
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    font-family: inherit;
    font-size: 15px;
    line-height: 1.6;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  }
  .field textarea { min-height: 96px; resize: vertical; }
  .field input::placeholder,
  .field textarea::placeholder { color: rgba(201, 214, 224, 0.7); }
  .field input:focus,
  .field select:focus,
  .field textarea:focus {
    outline: none;
    border-color: #7FC8BB;
    background: rgba(255, 255, 255, 0.16);
    box-shadow: 0 0 0 3px rgba(127, 200, 187, 0.24);
  }
  .field select option { color: #12212E; }
  .field-row { display: grid; gap: 0; }
  @media (min-width: 640px) {
    .field-row { grid-template-columns: 1fr 1fr; gap: 0 16px; }
  }
  .check-row {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 13px;
    line-height: 1.7;
    color: #C9D6E0;
    margin-bottom: 18px;
  }
  .check-row input {
    width: 18px;
    height: 18px;
    min-height: 18px;
    margin-top: 2px;
    flex-shrink: 0;
    accent-color: #3D9A8B;
  }
  .form-note { font-size: 12px; color: #9FB3C4; margin-top: 12px; text-align: center; }

  /* ---------- 页脚 ---------- */
  .site-footer {
    background: var(--ink);
    color: #C9D6E0;
    padding-top: 48px;
    padding-bottom: 32px;
    margin-top: 0;
  }
  @media (min-width: 1024px) { .site-footer { padding-top: 64px; } }
  .footer-grid { display: grid; gap: 32px; }
  @media (min-width: 640px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
  @media (min-width: 1024px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr 1.2fr; gap: 40px; } }
  .footer-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
  .footer-brand .brand-name { color: #fff; font-size: 17px; }
  .footer-desc { font-size: 14px; line-height: 1.8; color: #A9BCCB; max-width: 320px; }
  .footer-title {
    font-size: 14px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 14px;
    letter-spacing: 0.02em;
  }
  .footer-links { display: grid; gap: 10px; }
  .footer-links a {
    font-size: 14px;
    color: #A9BCCB;
    transition: color 0.18s ease;
    width: fit-content;
  }
  .footer-links a:hover { color: #fff; }
  .footer-contact { display: grid; gap: 10px; font-size: 14px; color: #A9BCCB; line-height: 1.75; }
  .footer-contact strong { color: #E4EDF4; font-weight: 600; }
  .footer-bottom {
    margin-top: 36px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    display: flex;
    flex-wrap: wrap;
    gap: 10px 20px;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
    color: #8FA4B4;
  }

  /* ---------- 浮动 CTA ---------- */
  .float-cta {
    position: fixed;
    z-index: 70;
    right: 16px;
    bottom: calc(var(--tab-h) + env(safe-area-inset-bottom, 0px) + 12px);
    left: 16px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: 999px;
    background: var(--brand);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    box-shadow: 0 12px 28px rgba(47, 111, 158, 0.32);
    opacity: 0;
    visibility: hidden;
    transform: translateY(14px);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease, background 0.2s ease;
  }
  .float-cta.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
  .float-cta:hover { background: var(--brand-deep); }
  @media (min-width: 768px) {
    .float-cta {
      left: auto;
      right: 24px;
      bottom: 24px;
      height: 48px;
      padding: 0 22px;
      width: auto;
    }
  }

  /* ---------- 移动底部 Tab ---------- */
  .mobile-tab {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 80;
    height: calc(var(--tab-h) + env(safe-area-inset-bottom, 0px));
    padding-bottom: env(safe-area-inset-bottom, 0px);
    display: flex;
    align-items: stretch;
    background: rgba(255, 255, 255, 0.97);
    border-top: 1px solid var(--line);
    box-shadow: 0 -6px 20px rgba(18, 33, 46, 0.06);
  }
  @media (min-width: 1024px) { .mobile-tab { display: none; } }
  .tab-item {
    position: relative;
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    font-size: 11px;
    line-height: 1.2;
    color: var(--subink);
    transition: color 0.18s ease;
    min-height: 44px;
    background: none;
    border: 0;
  }
  .tab-item svg { width: 22px; height: 22px; stroke-width: 1.5; }
  .tab-item.is-active { color: var(--brand); font-weight: 600; }
  .tab-item.is-active::before {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    border-radius: 0 0 2px 2px;
    background: var(--brand);
  }

  /* 分类抽屉 */
  .sheet-mask {
    position: fixed;
    inset: 0;
    z-index: 90;
    background: rgba(18, 33, 46, 0.42);
    opacity: 0;
    transition: opacity 0.25s ease;
  }
  .sheet-mask.is-open { opacity: 1; }
  .cat-sheet {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 91;
    background: #fff;
    border-radius: 22px 22px 0 0;
    padding: 18px 20px calc(24px + env(safe-area-inset-bottom, 0px));
    transform: translateY(100%);
    transition: transform 0.28s cubic-bezier(0.22, 1, 0.36, 1);
    box-shadow: 0 -14px 40px rgba(18, 33, 46, 0.18);
  }
  .cat-sheet.is-open { transform: translateY(0); }
  .sheet-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
  }
  .sheet-head h3 { font-size: 16px; font-weight: 700; }
  .sheet-close {
    width: 34px;
    height: 34px;
    border-radius: 999px;
    background: var(--mist);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--subink);
  }
  .sheet-links { display: grid; gap: 8px; }
  .sheet-links a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 13px 16px;
    border-radius: 12px;
    background: var(--mist);
    font-size: 15px;
    font-weight: 500;
    color: var(--ink);
    transition: background 0.18s ease, color 0.18s ease;
  }
  .sheet-links a:hover { background: var(--brand-tint); color: var(--brand-deep); }
  .sheet-links a svg { color: #9DB4C5; }

  @media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after {
      animation-duration: 0.001ms !important;
      transition-duration: 0.001ms !important;
    }
  }

/* roulang page: article */
:root{
  --primary:#2F6F9E;
  --primary-dark:#245A82;
  --primary-light:#DCEBF5;
  --bg:#F7FAFC;
  --surface:#FFFFFF;
  --ink:#12212E;
  --ink-2:#4A5B68;
  --line:#E1EAF1;
  --teal:#3D9A8B;
  --sand:#E89B5B;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 10px 30px rgba(18,33,46,.08);
  --shadow-hover:0 16px 40px rgba(18,33,46,.12);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding-left:0;list-style:none;}
:focus-visible{outline:2px solid rgba(47,111,158,.45);outline-offset:3px;border-radius:6px;}

.shell{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}

/* ---------- 进度条 ---------- */
.read-progress{
  position:fixed;top:0;left:0;height:3px;width:0;
  background:linear-gradient(90deg,var(--primary),var(--teal));
  z-index:120;transition:width .1s linear;
}

/* ---------- 头部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(255,255,255,.92);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(140%) blur(6px);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 22px rgba(18,33,46,.09);background:rgba(255,255,255,.97);}
.nav-wrap{
  display:flex;align-items:center;gap:28px;
  height:72px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--primary),var(--teal));
  box-shadow:0 6px 14px rgba(47,111,158,.28);
}
.brand-mark svg{width:22px;height:22px;}
.brand-name{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--ink);white-space:nowrap;}
.nav-desktop{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:8px 12px;font-size:15px;font-weight:500;color:var(--ink-2);
  border-radius:10px;transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--primary);background:rgba(220,235,245,.5);}
.nav-link.is-active{color:var(--primary);font-weight:700;}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;
  border-radius:2px;background:var(--primary);
}
.nav-cta{margin-left:14px;flex:0 0 auto;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,background .2s ease,color .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn:active{transform:translateY(0);}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(47,111,158,.24);}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 12px 26px rgba(36,90,130,.28);}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{background:var(--primary-light);color:var(--primary-dark);border-color:#C7DEEC;transform:translateY(-1px);}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-weight:600;font-size:15px;
}
.btn-text .arrow{transition:transform .2s ease;display:inline-block;}
.btn-text:hover{color:var(--primary-dark);}
.btn-text:hover .arrow{transform:translateX(3px);}

/* ---------- 主体 ---------- */
.page-main{padding-top:72px;}
.crumb-bar{
  background:#fff;border-bottom:1px solid var(--line);
}
.crumb-inner{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  padding:14px 0;font-size:13.5px;color:var(--ink-2);
}
.crumb-inner a{color:var(--ink-2);}
.crumb-inner a:hover{color:var(--primary);}
.crumb-sep{color:#B5C6D3;}
.crumb-current{color:var(--ink);font-weight:600;max-width:62vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

.article-hero{
  background:
    radial-gradient(circle at 12% 18%,rgba(47,111,158,.10),transparent 46%),
    radial-gradient(circle at 86% 6%,rgba(61,154,139,.10),transparent 44%),
    #fff;
  border-bottom:1px solid var(--line);
  padding:44px 0 40px;
}
.article-hero .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.04em;color:var(--primary);
  background:#E8F3FA;border-radius:999px;padding:6px 14px;
}
.article-hero h1{
  margin-top:18px;
  font-size:clamp(30px,4.4vw,44px);
  line-height:1.28;font-weight:800;letter-spacing:-.01em;
  color:var(--ink);
  max-width:900px;
}
.article-meta{
  margin-top:20px;display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  font-size:13.5px;color:var(--ink-2);
}
.meta-item{display:inline-flex;align-items:center;gap:7px;}
.meta-dot{width:5px;height:5px;border-radius:50%;background:var(--primary);display:inline-block;}
.meta-badge{
  display:inline-flex;align-items:center;
  background:#E8F3FA;color:var(--primary-dark);
  border-radius:999px;padding:4px 12px;font-size:12.5px;font-weight:700;
}

.article-layout{
  display:grid;grid-template-columns:minmax(0,760px) 280px;
  gap:56px;align-items:start;
  padding:56px 0 72px;
}
.article-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:40px 44px 44px;
}
.article-body{font-size:16px;line-height:1.85;color:#1B2C3A;max-width:760px;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  position:relative;
  font-size:clamp(21px,2.4vw,26px);font-weight:800;line-height:1.35;letter-spacing:-.01em;
  color:var(--ink);margin:2em 0 .8em;padding-left:14px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:3px;
  background:var(--primary);
}
.article-body h3{font-size:18px;font-weight:700;color:var(--ink);margin:1.6em 0 .6em;}
.article-body h4{font-size:16.5px;font-weight:700;color:var(--ink);margin:1.4em 0 .5em;}
.article-body ul{list-style:none;margin:0 0 1.2em;padding:0;}
.article-body ul > li{
  position:relative;padding-left:20px;margin-bottom:.55em;line-height:1.8;
}
.article-body ul > li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:50%;
  background:var(--primary);opacity:.75;
}
.article-body ol{list-style:none;counter-reset:art;margin:0 0 1.2em;padding:0;}
.article-body ol > li{
  counter-increment:art;position:relative;padding-left:30px;margin-bottom:.6em;
}
.article-body ol > li::before{
  content:counter(art);position:absolute;left:0;top:.18em;
  width:21px;height:21px;border-radius:7px;background:var(--primary-light);color:var(--primary-dark);
  font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;border-left:4px solid var(--primary);
  background:#F2F8FC;border-radius:0 12px 12px 0;color:#20394B;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:16px;margin:1.4em 0 .6em;box-shadow:var(--shadow);}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{font-size:13px;color:var(--ink-2);text-align:center;margin-top:8px;}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--primary-dark);}
.article-body strong{font-weight:700;color:var(--ink);}
.article-body table{width:100%;border-collapse:collapse;font-size:14.5px;margin:1.4em 0;}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left;}
.article-body th{background:#F2F7FB;font-weight:700;}
.article-body .table-wrap{overflow-x:auto;}

.article-foot{
  margin-top:38px;padding-top:24px;border-top:1px dashed var(--line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
}
.foot-note{font-size:13.5px;color:var(--ink-2);}

.empty-state{
  text-align:center;padding:56px 20px;
  border:1px dashed #C9DBE7;border-radius:var(--radius);background:#FBFDFE;
}
.empty-title{font-size:20px;font-weight:800;color:var(--ink);margin-bottom:10px;}
.empty-desc{font-size:15px;color:var(--ink-2);margin-bottom:22px;}

/* ---------- 侧栏 ---------- */
.side-col{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:22px 22px 24px;
}
.side-title{
  font-size:13px;font-weight:800;letter-spacing:.06em;color:var(--primary);
  text-transform:uppercase;margin-bottom:14px;
}
.side-nav{display:flex;flex-direction:column;gap:4px;}
.side-nav a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 12px;border-radius:10px;font-size:14.5px;color:var(--ink-2);
  transition:background .2s ease,color .2s ease;
}
.side-nav a:hover{background:#F2F8FC;color:var(--primary-dark);}
.side-nav a span.tag{
  font-size:11.5px;font-weight:700;color:var(--primary);
  background:#E8F3FA;border-radius:999px;padding:2px 8px;
}
.side-tip{
  font-size:13.5px;line-height:1.75;color:var(--ink-2);
}
.side-tip strong{color:var(--ink);}
.side-cta{
  background:linear-gradient(135deg,#2F6F9E,#245A82);
  border-radius:var(--radius);padding:24px 22px;color:#fff;
  box-shadow:0 14px 34px rgba(36,90,130,.26);
}
.side-cta h3{font-size:17px;font-weight:800;line-height:1.4;margin-bottom:8px;}
.side-cta p{font-size:13.5px;line-height:1.7;color:rgba(255,255,255,.82);margin-bottom:16px;}
.side-cta .btn{width:100%;background:#fff;color:var(--primary-dark);box-shadow:none;}
.side-cta .btn:hover{background:#EAF4FA;color:var(--primary-dark);}

/* ---------- 相关推荐 ---------- */
.related-block{padding:0 0 84px;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:26px;
}
.section-head h2{
  font-size:clamp(22px,2.6vw,28px);font-weight:800;letter-spacing:-.01em;color:var(--ink);
}
.section-head p{font-size:14.5px;color:var(--ink-2);margin-top:8px;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.news-card{
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#CFE1ED;}
.news-cover{position:relative;aspect-ratio:16/9;background:#E8F0F6;overflow:hidden;}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.news-card:hover .news-cover img{transform:scale(1.04);}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;gap:10px;}
.news-badge{
  align-self:flex-start;font-size:12px;font-weight:700;color:var(--primary-dark);
  background:#E8F3FA;border-radius:999px;padding:4px 11px;
}
.news-title{
  font-size:16.5px;font-weight:700;line-height:1.5;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card:hover .news-title{color:var(--primary-dark);}
.news-desc{
  font-size:13.8px;line-height:1.7;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:12.8px;color:#7C8C99;padding-top:6px;
}
.news-foot .more{color:var(--primary);font-weight:700;}

/* ---------- 底部 CTA ---------- */
.cta-block{padding:0 0 88px;}
.cta-card{
  position:relative;overflow:hidden;
  display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:center;
  background:linear-gradient(120deg,#245A82 0%,#2F6F9E 62%,#3D8AA8 100%);
  border-radius:24px;padding:48px 52px;
  box-shadow:0 22px 50px rgba(36,90,130,.28);
}
.cta-card::after{
  content:"";position:absolute;right:-60px;top:-70px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.16),transparent 68%);
  pointer-events:none;
}
.cta-card h2{
  font-size:clamp(23px,2.8vw,31px);font-weight:800;line-height:1.32;color:#fff;letter-spacing:-.01em;
}
.cta-card p{margin-top:14px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.84);max-width:520px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;position:relative;z-index:2;}
.cta-actions .btn-primary{background:#fff;color:var(--primary-dark);box-shadow:0 10px 24px rgba(9,30,45,.22);}
.cta-actions .btn-primary:hover{background:#EAF4FA;color:var(--primary-dark);}
.cta-actions .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.42);}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.6);}

/* ---------- 页脚 ---------- */
.site-footer{background:#12212E;color:#C9D6E0;padding:64px 0 0;}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-name{color:#fff;font-size:17px;}
.footer-desc{font-size:13.8px;line-height:1.8;color:#9FB2C1;max-width:330px;}
.footer-title{font-size:14px;font-weight:800;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:13.8px;color:#9FB2C1;transition:color .2s ease,transform .2s ease;}
.footer-links a:hover{color:#fff;transform:translateX(2px);}
.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:13.8px;color:#9FB2C1;}
.footer-contact strong{color:#E4EDF4;font-weight:600;}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  padding:22px 0 28px;font-size:13px;color:#7F93A3;
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:90;
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 22px;border-radius:999px;
  background:var(--primary);color:#fff;font-size:14.5px;font-weight:700;
  box-shadow:0 14px 32px rgba(47,111,158,.34);
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity .26s ease,transform .26s ease,visibility .26s,background .2s ease;
}
.float-cta.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:var(--primary-dark);}

/* ---------- 移动底部 Tab ---------- */
.mobile-tab{
  position:fixed;left:0;right:0;bottom:0;z-index:95;
  display:none;
  background:rgba(255,255,255,.97);
  border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -6px 20px rgba(18,33,46,.07);
}
.tab-inner{display:flex;align-items:stretch;height:60px;}
.tab-item{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:11px;color:var(--ink-2);position:relative;min-height:44px;
  transition:color .2s ease;
}
.tab-item svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;}
.tab-item.is-active{color:var(--primary);font-weight:700;}
.tab-item.is-active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:22px;height:2px;border-radius:2px;background:var(--primary);
}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .nav-desktop{gap:2px;}
  .nav-link{padding:8px 9px;font-size:14.5px;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:36px;}
  .side-col{position:static;}
  .side-cta{display:none;}
}
@media (max-width:1024px){
  .shell{padding:0 24px;}
  .nav-desktop{display:none;}
  .nav-wrap{justify-content:space-between;}
  .nav-cta{margin-left:auto;}
  .mobile-tab{display:block;}
  body{padding-bottom:76px;}
  .float-cta{
    right:12px;left:12px;bottom:calc(72px + env(safe-area-inset-bottom));
    justify-content:center;padding:12px 18px;border-radius:12px;font-size:14px;
  }
  .cta-card{grid-template-columns:1fr;gap:26px;padding:38px 30px;}
  .cta-actions{justify-content:flex-start;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  body{font-size:15.5px;}
  .page-main{padding-top:72px;}
  .article-hero{padding:32px 0 30px;}
  .article-hero h1{margin-top:14px;font-size:clamp(27px,7vw,34px);}
  .article-layout{padding:34px 0 52px;}
  .article-panel{padding:26px 22px 30px;border-radius:16px;}
  .article-body{font-size:15.5px;line-height:1.85;}
  .article-body h2{font-size:21px;}
  .article-body h3{font-size:17.5px;}
  .card-grid{grid-template-columns:1fr;gap:18px;}
  .related-block{padding-bottom:56px;}
  .cta-block{padding-bottom:64px;}
  .cta-card{padding:32px 22px;border-radius:18px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .site-footer{padding-top:48px;}
  .crumb-current{max-width:56vw;}
  .btn{width:auto;}
  .cta-actions .btn{width:100%;}
}
@media (max-width:520px){
  .shell{padding:0 18px;}
  .brand-name{font-size:15.5px;}
  .brand-mark{width:31px;height:31px;}
  .nav-cta{padding:10px 14px;font-size:13.5px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .article-meta{gap:8px 16px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
  --primary:#2F6F9E;
  --primary-dark:#245A82;
  --primary-light:#DCEBF5;
  --primary-soft:#E8F3FA;
  --bg:#F7FAFC;
  --surface:#FFFFFF;
  --ink:#12212E;
  --ink-2:#4A5B68;
  --line:#E1EAF1;
  --teal:#3D9A8B;
  --sand:#E89B5B;
  --sand-soft:#FDF4EC;
  --radius-card:18px;
  --radius-img:16px;
  --radius-btn:12px;
  --shadow:0 10px 30px rgba(18,33,46,.08);
  --shadow-hover:0 16px 40px rgba(18,33,46,.12);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--surface);
  padding-bottom:80px;
  -webkit-font-smoothing:antialiased;
}
@media (min-width:1024px){body{padding-bottom:0}}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid rgba(47,111,158,.45);outline-offset:3px;border-radius:6px}

/* 容器 */
.shell{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
@media (min-width:768px){.shell{padding:0 32px}}

/* 头部导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 22px rgba(18,33,46,.09)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,#2F6F9E 0%,#3D9A8B 100%);
  box-shadow:0 4px 12px rgba(47,111,158,.28);flex:none;
}
.brand-mark svg{width:20px;height:20px}
.brand-name{font-weight:800;font-size:17px;letter-spacing:-.01em;color:var(--ink);white-space:nowrap}
.nav-desktop{display:none;align-items:center;gap:2px}
@media (min-width:1024px){.nav-desktop{display:flex}}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:8px 13px;border-radius:10px;
  font-size:15px;font-weight:500;color:var(--ink-2);
  transition:color .18s ease,background .18s ease;
  white-space:nowrap;
}
@media (max-width:1180px){.nav-link{padding:8px 10px;font-size:14px}}
.nav-link:hover{color:var(--primary);background:var(--primary-soft)}
.nav-link.is-active{color:var(--primary);font-weight:600;background:transparent}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;border-radius:2px;background:var(--primary);
}
.nav-cta{flex:none}
@media (max-width:420px){.nav-cta{padding:0 14px;font-size:14px;min-height:40px}}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,background .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(47,111,158,.24)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 12px 26px rgba(47,111,158,.3)}
.btn-primary:active{transform:none}
.btn-secondary{background:#fff;color:var(--primary);border-color:var(--line)}
.btn-secondary:hover{background:var(--primary-soft);border-color:#C9DEEF;transform:translateY(-1px)}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.32)}
.btn-ghost:hover{background:rgba(255,255,255,.2)}
.btn .arrow{transition:transform .18s ease}
.btn:hover .arrow{transform:translateX(2px)}

/* 徽章与标签 */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  background:var(--primary-soft);color:var(--primary);
}
.badge-sand{background:#FBEDE0;color:#B96C2B}
.badge-teal{background:#E7F4F1;color:#2C7A6E}

/* 板块 */
.section{padding:56px 0}
@media (min-width:1024px){.section{padding:88px 0}}
.section-alt{background:var(--bg)}
.section-head{max-width:720px;margin-bottom:36px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--primary);
  margin-bottom:12px;
}
.eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--primary)}
.h2{font-size:clamp(24px,3.4vw,32px);line-height:1.3;font-weight:800;letter-spacing:-.01em;margin-bottom:12px}
.h3{font-size:18px;line-height:1.45;font-weight:700;margin-bottom:8px}
.lead{font-size:16px;line-height:1.8;color:var(--ink-2);max-width:62ch}

/* 面包屑 */
.crumbs{font-size:13px;color:var(--ink-2);display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:22px}
.crumbs a{color:var(--ink-2);transition:color .18s}
.crumbs a:hover{color:var(--primary)}
.crumbs .sep{color:#B7C7D3}
.crumbs .current{color:var(--ink);font-weight:600}

/* Hero */
.page-hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(900px 420px at 8% -12%, #E8F3FA 0%, rgba(232,243,250,0) 72%),
    radial-gradient(720px 360px at 94% 4%, #EAF5F2 0%, rgba(234,245,242,0) 70%),
    var(--bg);
  border-bottom:1px solid var(--line);
  padding:32px 0 52px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(47,111,158,.14) 1px, transparent 1px);
  background-size:22px 22px;
  opacity:.5;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,0) 78%);
          mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,0) 78%);
}
.page-hero > .shell{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:1fr;gap:36px;align-items:center}
@media (min-width:1024px){.hero-grid{grid-template-columns:1.06fr .94fr;gap:56px}}
.hero-title{
  font-size:clamp(32px,5vw,50px);line-height:1.22;font-weight:800;letter-spacing:-.015em;
  margin-bottom:16px;
}
.hero-title em{font-style:normal;color:var(--primary)}
.hero-sub{font-size:17px;line-height:1.8;color:var(--ink-2);max-width:36em;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
@media (max-width:520px){.hero-actions{flex-direction:column;align-items:stretch}.hero-actions .btn{width:100%}}
.trust-row{
  display:flex;flex-wrap:wrap;gap:0;margin-top:26px;
  font-size:13.5px;color:var(--ink-2);
}
.trust-row li{padding:0 16px;border-left:2px solid var(--primary-light);line-height:1.5}
.trust-row li:first-child{padding-left:0;border-left:0}
@media (max-width:520px){
  .trust-row{flex-direction:column;gap:10px}
  .trust-row li{padding:0;border-left:0}
}
.hero-figure{position:relative}
.hero-figure .frame{
  position:relative;border-radius:20px;overflow:hidden;background:#EAF1F6;
  aspect-ratio:4/3;border:6px solid #fff;box-shadow:var(--shadow);
}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.hero-figure .corner-badge{
  position:absolute;left:18px;bottom:18px;
  background:rgba(255,255,255,.95);color:var(--primary);
  font-size:12px;font-weight:700;letter-spacing:.04em;
  padding:6px 14px;border-radius:999px;box-shadow:0 6px 18px rgba(18,33,46,.14);
}

/* 步骤条 */
.steps{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:1024px){.steps{grid-template-columns:repeat(4,1fr);gap:20px}}
.step{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 22px 24px;box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.step::before{
  content:"";position:absolute;left:0;top:0;height:3px;width:56px;
  border-radius:18px 0 18px 0;background:linear-gradient(90deg,var(--primary),var(--teal));
}
@media (min-width:1024px){
  .step:not(:last-child)::after{
    content:"";position:absolute;top:52px;right:-20px;width:20px;
    border-top:2px dashed #C9DEEF;
  }
}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:999px;
  background:var(--primary-soft);border:1px solid #CFE3F1;color:var(--primary);
  font-size:16px;font-weight:800;font-variant-numeric:tabular-nums;
  margin-bottom:16px;
}
.step-title{font-size:17px;font-weight:700;margin-bottom:8px}
.step-text{font-size:14.5px;line-height:1.75;color:var(--ink-2)}

/* 核对清单 */
.check-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:768px){.check-grid{grid-template-columns:1fr 1fr;gap:28px}}
.check-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px 24px;box-shadow:var(--shadow);
}
.check-card-head{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.check-card-head .dot{width:10px;height:10px;border-radius:999px;background:var(--primary)}
.check-card.is-warn .check-card-head .dot{background:var(--sand)}
.check-list{display:grid;gap:14px}
.check-list li{display:grid;grid-template-columns:22px 1fr;gap:12px;font-size:15px;line-height:1.75;color:var(--ink-2)}
.tick{
  width:22px;height:22px;border-radius:999px;margin-top:4px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary-soft);color:var(--primary);
  font-size:12px;font-weight:800;line-height:1;
}
.tick-warn{background:#FBEDE0;color:#B96C2B}

/* 提示框 */
.notice{
  margin-top:26px;display:flex;gap:16px;align-items:flex-start;
  background:var(--sand-soft);border:1px solid #F3DCC6;border-left:4px solid var(--sand);
  border-radius:14px;padding:20px 22px;
}
.notice-icon{
  flex:none;width:28px;height:28px;border-radius:999px;
  background:#F7DFC9;color:#A85F1F;display:inline-flex;align-items:center;justify-content:center;
  font-weight:800;font-size:14px;
}
.notice h3{font-size:15px;font-weight:700;margin-bottom:6px;color:#8A4E18}
.notice p{font-size:14.5px;line-height:1.8;color:#7B5232}

/* 相关入口 */
.link-grid{display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width:768px){.link-grid{grid-template-columns:repeat(3,1fr)}}
.link-card{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:20px 22px;box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.link-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#C9DEEF}
.link-card .lc-title{font-size:15.5px;font-weight:700;margin-bottom:4px}
.link-card .lc-desc{font-size:13.5px;color:var(--ink-2);line-height:1.6}
.link-card .lc-arrow{color:var(--primary);font-weight:700;flex:none;transition:transform .2s ease}
.link-card:hover .lc-arrow{transform:translateX(3px)}

/* FAQ */
.faq-wrap{display:grid;grid-template-columns:1fr;gap:8px}
@media (min-width:1024px){.faq-wrap{grid-template-columns:1fr 1.6fr;gap:48px;align-items:start}}
.faq-intro{position:static}
@media (min-width:1024px){.faq-intro{position:sticky;top:100px}}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 4px;background:none;border:0;text-align:left;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
  transition:color .18s ease;
}
.faq-q:hover{color:var(--primary)}
.faq-icon{flex:none;width:20px;height:20px;transition:transform .28s ease;color:var(--primary)}
.faq-item.is-open .faq-icon{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-item.is-open .faq-a{max-height:320px}
.faq-a p{padding:0 4px 22px;font-size:15px;line-height:1.8;color:var(--ink-2)}

/* CTA */
.cta-band{
  position:relative;overflow:hidden;
  background:#12212E;color:#fff;border-radius:24px;
  padding:44px 28px;
}
@media (min-width:1024px){.cta-band{padding:56px 56px;display:flex;align-items:center;justify-content:space-between;gap:48px}}
.cta-band::before{
  content:"";position:absolute;right:-80px;top:-90px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(61,154,139,.32),rgba(61,154,139,0) 68%);
}
.cta-band::after{
  content:"";position:absolute;left:-60px;bottom:-110px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,111,158,.42),rgba(47,111,158,0) 70%);
}
.cta-content{position:relative;z-index:1;max-width:640px}
.cta-content h2{font-size:clamp(22px,3vw,30px);line-height:1.35;font-weight:800;margin-bottom:12px}
.cta-content p{font-size:15px;line-height:1.8;color:#B9CBD8}
.cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
@media (min-width:1024px){.cta-actions{margin-top:0;flex-direction:column;min-width:200px}}
@media (max-width:520px){.cta-actions .btn{width:100%}}

/* 页脚 */
.site-footer{background:#12212E;color:#C9D6E0;padding:56px 0 32px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px}
@media (min-width:768px){.footer-grid{grid-template-columns:1fr 1fr;gap:36px}}
@media (min-width:1024px){.footer-grid{grid-template-columns:2fr 1fr 1fr 1.2fr;gap:44px}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-name{color:#fff}
.footer-desc{font-size:14px;line-height:1.85;color:#A9BCCB;max-width:36ch}
.footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:14px}
.footer-links{display:grid;gap:10px;font-size:14px}
.footer-links a{color:#A9BCCB;transition:color .18s ease}
.footer-links a:hover{color:#fff}
.footer-contact{display:grid;gap:10px;font-size:14px;color:#A9BCCB;line-height:1.7}
.footer-contact strong{color:#fff;font-weight:600}
.footer-bottom{
  margin-top:38px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:#8FA6B6;
}

/* 移动端底部 Tab */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:grid;grid-template-columns:repeat(5,1fr);
  background:rgba(255,255,255,.98);
  border-top:1px solid var(--line);
  box-shadow:0 -6px 22px rgba(18,33,46,.07);
  padding-bottom:env(safe-area-inset-bottom);
}
@media (min-width:1024px){.tabbar{display:none}}
.tabbar a{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  height:64px;font-size:11px;color:var(--ink-2);transition:color .18s ease;
}
.tabbar a svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.tabbar a.is-active{color:var(--primary);font-weight:600}
.tabbar a.is-active::before{
  content:"";position:absolute;top:0;width:22px;height:2px;border-radius:2px;background:var(--primary);
}

/* 浮动 CTA */
.float-cta{
  position:fixed;z-index:65;left:16px;right:16px;
  bottom:calc(76px + env(safe-area-inset-bottom));
  height:48px;border-radius:999px;
  display:flex;align-items:center;justify-content:center;gap:8px;
  background:var(--primary);color:#fff;font-size:14.5px;font-weight:600;
  box-shadow:0 12px 28px rgba(47,111,158,.34);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease,background .18s ease;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:none}
.float-cta:hover{background:var(--primary-dark)}
@media (min-width:1024px){
  .float-cta{left:auto;right:24px;bottom:24px;height:52px;padding:0 26px;font-size:15px}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --primary:#2F6F9E;
  --primary-deep:#245A82;
  --primary-soft:#DCEBF5;
  --primary-tint:#E8F3FA;
  --bg:#F7FAFC;
  --surface:#FFFFFF;
  --ink:#12212E;
  --ink-2:#4A5B68;
  --line:#E1EAF1;
  --line-strong:#DCE6EE;
  --teal:#3D9A8B;
  --sand:#E89B5B;
  --sand-soft:#FBF0E6;
  --radius-card:18px;
  --radius-img:16px;
  --radius-btn:12px;
  --shadow-1:0 10px 30px rgba(18,33,46,.08);
  --shadow-2:0 16px 40px rgba(18,33,46,.12);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body.site-body{
  margin:0;
  font-family:'PingFang SC','Microsoft YaHei','Noto Sans SC',system-ui,-apple-system,'Segoe UI',sans-serif;
  font-size:16px;
  line-height:1.78;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.site-body img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
.shell{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}
@media (min-width:1024px){.shell{padding:0 32px}}
.skip{position:absolute;left:-9999px;top:0;background:var(--primary);color:#fff;padding:10px 16px;border-radius:0 0 12px 0;z-index:200}
.skip:focus{left:0}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 26px rgba(18,33,46,.09);background:rgba(255,255,255,.98)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:14px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;min-height:44px}
.brand-mark{
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,#2F6F9E 0%,#3D9A8B 100%);
  box-shadow:0 6px 16px rgba(47,111,158,.28);
  flex:0 0 auto;
}
.brand-mark svg{width:22px;height:22px}
.brand-name{font-size:17px;font-weight:700;letter-spacing:-.01em;color:var(--ink);white-space:nowrap}
.nav-desktop{display:none}
@media (min-width:1024px){
  .nav-desktop{display:flex;align-items:center;gap:2px}
}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 12px;
  font-size:15px;font-weight:500;color:var(--ink-2);border-radius:10px;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--primary);background:#F1F7FB}
.nav-link:focus-visible{outline:2px solid rgba(47,111,158,.4);outline-offset:2px}
.nav-link.is-active{color:var(--primary);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;background:var(--primary);
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;cursor:pointer;
  border:1px solid transparent;
  transition:background .2s ease,color .2s ease,box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.btn:focus-visible{outline:2px solid rgba(47,111,158,.45);outline-offset:2px}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(47,111,158,.24)}
.btn-primary:hover{background:var(--primary-deep);transform:translateY(-1px);box-shadow:0 12px 26px rgba(36,90,130,.28)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--primary);border-color:var(--line-strong)}
.btn-ghost:hover{background:var(--primary-tint);border-color:#C9DFEE}
.btn-light{background:#fff;color:var(--primary-deep)}
.btn-light:hover{background:#EAF3FA;transform:translateY(-1px)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.42)}
.btn-outline-light:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.7)}
.nav-cta{font-size:13px;padding:0 14px;min-height:40px;white-space:nowrap}
@media (min-width:1024px){.nav-cta{font-size:15px;padding:0 20px;min-height:44px}}

/* ---------- breadcrumb ---------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line)}
.crumb-wrap{display:flex;align-items:center;gap:8px;min-height:48px;font-size:13px;color:var(--ink-2);flex-wrap:wrap}
.crumb-wrap a{color:var(--ink-2);transition:color .18s ease}
.crumb-wrap a:hover{color:var(--primary)}
.crumb-sep{color:#B8C7D3}
.crumb-current{color:var(--primary);font-weight:600}

/* ---------- hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:52px 0 56px;
  text-align:center;
  background:
    radial-gradient(720px 340px at 50% -120px, rgba(47,111,158,.16), transparent 72%),
    radial-gradient(520px 280px at 88% 8%, rgba(61,154,139,.10), transparent 70%),
    #F7FAFC;
  border-bottom:1px solid var(--line);
}
.hero-dots{
  position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(47,111,158,.20) 1px, transparent 1px);
  background-size:22px 22px;
  opacity:.45;
  -webkit-mask-image:radial-gradient(600px 320px at 50% 30%, #000 20%, transparent 78%);
  mask-image:radial-gradient(600px 320px at 50% 30%, #000 20%, transparent 78%);
}
.page-hero .shell{position:relative;z-index:1}
.hero-inner{max-width:840px;margin:0 auto}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;
  background:var(--primary-tint);color:var(--primary-deep);
  font-size:12px;font-weight:600;letter-spacing:.04em;
}
.tag-sand{background:var(--sand-soft);color:#B26B2C}
.hero-title{
  margin:18px 0 0;
  font-size:clamp(30px,4.6vw,46px);
  line-height:1.24;font-weight:800;letter-spacing:-.012em;color:var(--ink);
}
.hero-sub{
  margin:16px auto 0;max-width:640px;
  font-size:clamp(16px,2vw,19px);line-height:1.7;color:var(--primary-deep);font-weight:600;
}
.hero-lead{
  margin:12px auto 0;max-width:640px;
  font-size:15px;line-height:1.85;color:var(--ink-2);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:26px}
@media (max-width:520px){
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
}

/* ---------- sections ---------- */
.section{padding:56px 0}
@media (min-width:1024px){.section{padding:88px 0}}
.sec-head{max-width:760px;margin:0 auto 32px;text-align:center}
.sec-head-left{text-align:left;margin-left:0}
.sec-title{
  font-size:clamp(23px,3vw,31px);
  line-height:1.28;font-weight:800;letter-spacing:-.01em;color:var(--ink);
  margin-top:12px;
}
.sec-desc{margin-top:12px;font-size:15px;line-height:1.85;color:var(--ink-2)}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* ---------- capability matrix ---------- */
.cap-grid{display:grid;grid-template-columns:1fr;gap:18px}
@media (min-width:768px){.cap-grid{grid-template-columns:repeat(2,1fr);gap:22px}}
.cap-item{
  display:flex;gap:18px;align-items:flex-start;
  padding:24px 24px 26px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.cap-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#CFE2EE}
.cap-num{
  flex:0 0 auto;width:46px;
  font-size:26px;font-weight:800;line-height:1.1;
  color:var(--primary);font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.cap-num::after{content:"";display:block;width:22px;height:3px;border-radius:3px;background:var(--sand);margin-top:8px}
.cap-title{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:-.005em}
.cap-text{margin-top:8px;font-size:14.5px;line-height:1.8;color:var(--ink-2)}

/* ---------- stat bar ---------- */
.stat-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;
}
.stat-bar{display:grid;grid-template-columns:1fr}
@media (min-width:768px){.stat-bar{grid-template-columns:repeat(3,1fr)}}
.stat{padding:28px 24px;text-align:center;border-bottom:1px solid var(--line)}
.stat:last-child{border-bottom:none}
@media (min-width:768px){
  .stat{border-bottom:none;border-right:1px solid var(--line)}
  .stat:last-child{border-right:none}
}
.stat-num{
  font-size:clamp(32px,4.4vw,44px);font-weight:800;line-height:1.1;
  color:var(--primary);font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.stat-num span{font-size:.5em;font-weight:700;margin-left:4px;color:var(--primary-deep)}
.stat-label{margin-top:8px;font-size:14px;font-weight:600;color:var(--ink)}
.stat-note{margin-top:6px;font-size:13px;color:var(--ink-2);line-height:1.7}

/* ---------- split ---------- */
.split{display:grid;grid-template-columns:1fr;gap:28px;align-items:center}
@media (min-width:1024px){.split{grid-template-columns:1fr 1fr;gap:56px}}
.split-media{margin:0}
.split-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:20px;border:1px solid var(--line);
  box-shadow:var(--shadow-1);background:#E9F1F7;
}
.split-body .sec-title{margin-top:12px}
.check-list{margin-top:20px;display:grid;gap:12px}
.check-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:15px;line-height:1.8;color:var(--ink-2);
}
.check-list .dot{
  flex:0 0 auto;margin-top:7px;width:8px;height:8px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 0 4px var(--primary-tint);
}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;margin-top:22px;
  font-size:15px;font-weight:600;color:var(--primary);
  border-bottom:1px solid rgba(47,111,158,.35);padding-bottom:3px;
  transition:color .2s ease,border-color .2s ease;
}
.link-arrow svg{width:16px;height:16px;transition:transform .2s ease}
.link-arrow:hover{color:var(--primary-deep);border-color:var(--primary-deep)}
.link-arrow:hover svg{transform:translateX(3px)}

/* ---------- faq ---------- */
.faq-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:6px 24px;
}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:none}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;background:none;border:none;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-q:hover{color:var(--primary)}
.faq-q:focus-visible{outline:2px solid rgba(47,111,158,.42);outline-offset:3px;border-radius:8px}
.faq-icon{
  flex:0 0 auto;width:22px;height:22px;color:var(--primary);
  transition:transform .25s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(180deg)}
.faq-a{padding:0 0 20px;font-size:15px;line-height:1.85;color:var(--ink-2);max-width:72ch}

/* ---------- cta ---------- */
.cta-card{
  position:relative;overflow:hidden;
  background:linear-gradient(140deg,#12212E 0%,#1B3346 62%,#245A82 100%);
  border-radius:24px;padding:36px 24px;color:#fff;
  box-shadow:0 24px 50px rgba(18,33,46,.22);
}
@media (min-width:768px){.cta-card{padding:52px 48px}}
.cta-card::after{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(61,154,139,.35),transparent 68%);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:1;display:grid;gap:24px;align-items:center}
@media (min-width:1024px){.cta-inner{grid-template-columns:1.2fr .8fr;gap:48px}}
.cta-title{font-size:clamp(22px,2.8vw,30px);line-height:1.3;font-weight:800;color:#fff;letter-spacing:-.01em}
.cta-text{margin-top:12px;font-size:15px;line-height:1.85;color:#C9D6E0;max-width:52ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
@media (max-width:520px){
  .cta-actions{flex-direction:column}
  .cta-actions .btn{width:100%}
}

/* ---------- footer ---------- */
.site-footer{background:#12212E;color:#C9D6E0;padding:56px 0 0;margin-top:64px}
@media (min-width:1024px){.site-footer{padding:72px 0 0;margin-top:88px}}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:2fr 1fr 1fr 1.2fr;gap:40px}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-name{color:#fff;font-size:16px}
.footer-desc{font-size:14px;line-height:1.85;color:#A9BAC7;max-width:34ch}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:.02em}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14px;color:#B7C6D3;transition:color .2s ease}
.footer-links a:hover{color:#fff}
.footer-links a:focus-visible{outline:2px solid rgba(255,255,255,.5);outline-offset:3px;border-radius:4px}
.footer-contact{display:grid;gap:10px;font-size:14px;color:#B7C6D3;line-height:1.7}
.footer-contact strong{color:#fff;font-weight:600}
.footer-bottom{
  margin-top:40px;padding:20px 0 26px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:#8FA3B2;
}

/* ---------- mobile tabs ---------- */
.mobile-tabs{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:grid;grid-template-columns:repeat(6,1fr);
  background:rgba(255,255,255,.97);
  border-top:1px solid var(--line);
  box-shadow:0 -6px 22px rgba(18,33,46,.08);
  padding-bottom:env(safe-area-inset-bottom);
}
@media (min-width:1024px){.mobile-tabs{display:none}}
.tab{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  height:64px;font-size:10px;line-height:1.2;color:var(--ink-2);letter-spacing:-.01em;
  transition:color .2s ease;
}
.tab svg{width:20px;height:20px;stroke-width:1.5}
.tab:active{background:#F1F7FB}
.tab.is-active{color:var(--primary);font-weight:600}
.tab.is-active::after{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:20px;height:2px;border-radius:2px;background:var(--primary);
}
@media (max-width:1023px){body.site-body{padding-bottom:80px}}

/* ---------- float cta ---------- */
.float-cta{
  position:fixed;z-index:65;right:24px;bottom:24px;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 22px;border-radius:999px;
  background:var(--primary);color:#fff;font-size:14px;font-weight:600;
  box-shadow:0 14px 30px rgba(36,90,130,.32);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,background .2s ease,visibility .25s;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta:hover{background:var(--primary-deep)}
.float-cta:focus-visible{outline:2px solid rgba(47,111,158,.5);outline-offset:3px}
.float-cta svg{width:16px;height:16px}
@media (max-width:1023px){
  .float-cta{
    left:16px;right:16px;bottom:76px;width:auto;border-radius:12px;
    height:48px;min-height:48px;font-size:14px;transform:translateY(14px);
  }
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important}
  .cap-item:hover,.btn-primary:hover,.btn-light:hover{transform:none}
}

/* roulang page: category3 */
:root{
  --primary:#2F6F9E;
  --primary-dark:#245A82;
  --primary-light:#DCEBF5;
  --primary-soft:#E8F3FA;
  --ink:#12212E;
  --ink-2:#4A5B68;
  --bg:#F7FAFC;
  --surface:#FFFFFF;
  --border:#E1EAF1;
  --border-strong:#DCE6EE;
  --teal:#3D9A8B;
  --teal-soft:#E7F4F1;
  --sand:#E89B5B;
  --sand-soft:#FCF1E6;
  --r-card:18px;
  --r-img:16px;
  --r-btn:12px;
  --r-pill:999px;
  --shadow:0 10px 30px rgba(18,33,46,.08);
  --shadow-hover:0 16px 40px rgba(18,33,46,.12);
  --shell:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  padding-bottom:0;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--primary-dark)}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(47,111,158,.4);outline-offset:2px;border-radius:6px}
.shell{width:100%;max-width:var(--shell);margin:0 auto;padding:0 32px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;text-decoration:none;
  transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease,border-color .18s ease,color .18s ease;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(47,111,158,.22)}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(47,111,158,.28)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--primary);border-color:var(--border-strong)}
.btn-ghost:hover{background:var(--primary-light);color:var(--primary-dark);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-light{background:#fff;color:var(--primary-dark)}
.btn-light:hover{background:var(--primary-light);color:var(--primary-dark);transform:translateY(-1px)}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px}

/* ---------- 头部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid var(--border);
  transition:box-shadow .2s ease,background-color .2s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(18,33,46,.08);background:rgba(255,255,255,.98)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary) 0%,var(--teal) 100%);
  box-shadow:0 6px 14px rgba(47,111,158,.24);
}
.brand-mark svg{width:22px;height:22px}
.brand-name{font-size:18px;font-weight:800;letter-spacing:-.01em;color:var(--ink);white-space:nowrap}
.nav-desktop{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  min-height:40px;padding:0 12px;border-radius:10px;
  font-size:15px;font-weight:500;color:var(--ink-2);text-decoration:none;
  transition:color .18s ease,background-color .18s ease;
}
.nav-link:hover{color:var(--primary);background:var(--primary-soft)}
.nav-link.is-active{color:var(--primary);font-weight:700}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  border-radius:2px;background:var(--primary);
}
.nav-cta{flex-shrink:0;min-height:42px;padding:0 18px;font-size:14px}

/* ---------- 主体通用 ---------- */
main{display:block}
.section{padding:76px 0}
.section-tight{padding:56px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--primary-soft);color:var(--primary-dark);
  font-size:13px;font-weight:600;letter-spacing:.02em;
}
.eyebrow-warm{background:var(--sand-soft);color:#B96C2A}
.section-head{max-width:760px}
.section-title{font-size:clamp(24px,3vw,31px);line-height:1.28;font-weight:800;letter-spacing:-.01em;color:var(--ink)}
.section-sub{margin-top:14px;font-size:15px;line-height:1.85;color:var(--ink-2)}
.text-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--primary)}
.text-link .arrow{transition:transform .18s ease}
.text-link:hover .arrow{transform:translateX(3px)}

/* ---------- 面包屑 ---------- */
.crumbs{padding:100px 0 0}
.crumbs-inner{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-2)}
.crumbs-inner a{color:var(--ink-2)}
.crumbs-inner a:hover{color:var(--primary)}
.crumbs-sep{color:#A9BAC8}
.crumbs-current{color:var(--ink);font-weight:600}

/* ---------- Hero（左图右文） ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:36px 0 64px;
  background:
    radial-gradient(1100px 380px at 12% -8%, #E8F3FA 0%, rgba(232,243,250,0) 72%),
    radial-gradient(900px 320px at 92% 4%, #F0F8F6 0%, rgba(240,248,246,0) 70%),
    var(--bg);
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(#D7E5F0 1px, transparent 1px);
  background-size:24px 24px;opacity:.45;
  mask-image:linear-gradient(to bottom, rgba(0,0,0,.7), rgba(0,0,0,0));
  -webkit-mask-image:linear-gradient(to bottom, rgba(0,0,0,.7), rgba(0,0,0,0));
}
.hero-grid{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.hero-figure{position:relative}
.hero-figure img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:20px;border:6px solid #fff;
  box-shadow:var(--shadow);
  background:var(--primary-light);
}
.hero-badge{
  position:absolute;left:20px;bottom:-14px;
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 16px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--border);
  font-size:13px;font-weight:700;color:var(--primary-dark);
  box-shadow:var(--shadow);
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--teal)}
.hero-copy h1{
  margin-top:18px;
  font-size:clamp(32px,4vw,50px);
  line-height:1.2;font-weight:800;letter-spacing:-.015em;color:var(--ink);
}
.hero-lead{margin-top:18px;font-size:17px;line-height:1.75;font-weight:600;color:var(--primary-dark)}
.hero-desc{margin-top:12px;font-size:15px;line-height:1.85;color:var(--ink-2);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-trust{
  display:flex;flex-wrap:wrap;align-items:center;gap:0;margin-top:30px;
  font-size:13px;color:var(--ink-2);
}
.hero-trust span{padding:0 16px;position:relative;line-height:1.4}
.hero-trust span:first-child{padding-left:0}
.hero-trust span + span::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:1px;height:14px;background:var(--border-strong);
}
.hero-trust strong{color:var(--ink);font-weight:700}

/* ---------- 双栏清单 ---------- */
.check-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:40px}
.check-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-card);padding:30px;box-shadow:var(--shadow);
  transition:box-shadow .2s ease,transform .2s ease;
}
.check-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.check-head{display:flex;align-items:center;gap:12px;margin-bottom:8px}
.check-icon{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;flex-shrink:0;
}
.check-icon svg{width:20px;height:20px}
.icon-teal{background:var(--teal-soft);color:#2E7C70}
.icon-warm{background:var(--sand-soft);color:#B96C2A}
.check-title{font-size:19px;font-weight:800;letter-spacing:-.01em}
.check-note{font-size:14px;color:var(--ink-2);margin-bottom:18px}
.check-list li{
  position:relative;padding-left:26px;font-size:15px;line-height:1.8;color:var(--ink-2);
  margin-bottom:12px;
}
.check-list li:last-child{margin-bottom:0}
.check-list li::before{
  content:"";position:absolute;left:0;top:.65em;
  width:8px;height:8px;border-radius:50%;background:var(--teal);
}
.check-list.warn li::before{background:var(--sand)}
.check-list strong{color:var(--ink);font-weight:700}

/* ---------- 时间线 ---------- */
.timeline{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:44px}
.timeline::before{
  content:"";position:absolute;left:24px;right:24px;top:46px;height:2px;
  background:linear-gradient(90deg,var(--primary-light),var(--primary-light));
  z-index:0;
}
.tl-item{
  position:relative;z-index:1;background:var(--surface);
  border:1px solid var(--border);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--shadow);
  transition:box-shadow .2s ease,transform .2s ease;
}
.tl-item:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.tl-num{
  width:48px;height:48px;border-radius:var(--r-pill);
  display:grid;place-items:center;
  background:var(--primary-light);color:var(--primary-dark);
  font-size:17px;font-weight:800;letter-spacing:.02em;
  border:3px solid #fff;box-shadow:0 6px 14px rgba(47,111,158,.16);
  font-variant-numeric:tabular-nums;
}
.tl-title{margin-top:18px;font-size:18px;font-weight:800;letter-spacing:-.01em}
.tl-text{margin-top:10px;font-size:15px;line-height:1.8;color:var(--ink-2)}
.tl-meta{margin-top:14px;display:inline-flex;padding:4px 12px;border-radius:var(--r-pill);background:var(--primary-soft);color:var(--primary-dark);font-size:12px;font-weight:600}

/* ---------- 深墨蓝提示卡 ---------- */
.dark-note{
  margin-top:40px;
  background:var(--ink);color:#fff;border-radius:22px;
  padding:38px 40px;display:grid;grid-template-columns:auto 1fr;gap:26px;align-items:start;
  box-shadow:0 18px 44px rgba(18,33,46,.22);
}
.dark-note-icon{
  width:52px;height:52px;border-radius:14px;display:grid;place-items:center;
  background:rgba(232,155,91,.16);color:#F0B581;
}
.dark-note-icon svg{width:26px;height:26px}
.dark-note h3{font-size:21px;font-weight:800;letter-spacing:-.01em;color:#fff}
.dark-note p{margin-top:10px;font-size:15px;line-height:1.85;color:#C9D6E0;max-width:820px}
.dark-note ul{margin-top:16px;display:grid;grid-template-columns:1fr 1fr;gap:10px 28px}
.dark-note li{position:relative;padding-left:22px;font-size:14px;line-height:1.75;color:#E3ECF3}
.dark-note li::before{
  content:"";position:absolute;left:0;top:.7em;width:8px;height:8px;border-radius:2px;
  background:#E89B5B;
}
.dark-note .btn{margin-top:22px}

/* ---------- 场景卡 ---------- */
.scene-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:40px}
.scene-card{
  display:grid;grid-template-columns:112px 1fr;gap:20px;align-items:center;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--shadow);
  transition:box-shadow .2s ease,transform .2s ease;
}
.scene-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.scene-card img{
  width:112px;height:112px;object-fit:cover;border-radius:14px;background:var(--primary-light);
}
.scene-card h3{font-size:17px;font-weight:800;letter-spacing:-.01em}
.scene-card p{margin-top:8px;font-size:14px;line-height:1.75;color:var(--ink-2)}

/* ---------- FAQ ---------- */
.faq-wrap{margin-top:36px;border-top:1px solid var(--border)}
.faq-item{border-bottom:1px solid var(--border)}
.faq-btn{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 4px;min-height:56px;
  background:none;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:700;color:var(--ink);
  transition:color .18s ease;
}
.faq-btn:hover{color:var(--primary)}
.faq-icon{
  flex-shrink:0;width:22px;height:22px;display:grid;place-items:center;color:var(--primary);
  transition:transform .25s ease;
}
.faq-btn[aria-expanded="true"] .faq-icon{transform:rotate(180deg)}
.faq-panel{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-panel p{padding:0 4px 22px;font-size:15px;line-height:1.85;color:var(--ink-2);max-width:840px}

/* ---------- 相关入口 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:36px}
.related-card{
  display:block;background:var(--surface);border:1px solid var(--border);
  border-radius:16px;padding:22px;text-decoration:none;
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.related-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:var(--primary-light)}
.related-card .tag{
  display:inline-flex;padding:3px 10px;border-radius:var(--r-pill);
  background:var(--primary-soft);color:var(--primary-dark);font-size:12px;font-weight:600;
}
.related-card h3{margin-top:12px;font-size:16px;font-weight:800;color:var(--ink)}
.related-card p{margin-top:8px;font-size:13px;line-height:1.75;color:var(--ink-2)}
.related-card .go{margin-top:14px;display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:700;color:var(--primary)}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--primary);color:#fff;border-radius:24px;
  padding:48px 52px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
  box-shadow:0 18px 44px rgba(47,111,158,.24);
}
.cta-band h2{font-size:clamp(22px,2.6vw,28px);line-height:1.3;font-weight:800;letter-spacing:-.01em;color:#fff}
.cta-band p{margin-top:12px;font-size:15px;line-height:1.8;color:#DCEBF5;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#C9D6E0;margin-top:88px;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px;box-shadow:none}
.footer-brand .brand-name{color:#fff;font-size:17px;font-weight:800}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:#C9D6E0;max-width:340px}
.footer-title{font-size:14px;font-weight:700;color:#fff;letter-spacing:.04em;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:#C9D6E0}
.footer-links a:hover{color:#fff}
.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:14px;color:#C9D6E0}
.footer-contact strong{color:#fff;font-weight:600}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#9FB2C1;
}

/* ---------- 移动底部 Tab ---------- */
.mobile-tab{
  position:fixed;left:0;right:0;bottom:0;z-index:70;display:none;
  background:rgba(255,255,255,.98);
  border-top:1px solid var(--border);
  padding-bottom:env(safe-area-inset-bottom,0px);
  box-shadow:0 -6px 20px rgba(18,33,46,.06);
}
.tab-inner{display:flex;height:64px}
.tab-item{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:11px;color:var(--ink-2);text-decoration:none;position:relative;
  padding:0 2px;transition:color .18s ease;
}
.tab-item svg{width:22px;height:22px;stroke-width:1.5}
.tab-item.is-active{color:var(--primary);font-weight:700}
.tab-item.is-active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:22px;height:2px;border-radius:2px;background:var(--primary);
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:80;
  display:inline-flex;align-items:center;gap:8px;
  min-height:48px;padding:0 22px;border-radius:var(--r-pill);
  background:var(--primary);color:#fff;font-size:14px;font-weight:700;
  box-shadow:0 12px 30px rgba(47,111,158,.32);text-decoration:none;
  opacity:0;pointer-events:none;transform:translateY(14px);
  transition:opacity .25s ease,transform .25s ease,background-color .18s ease;
}
.float-cta:hover{background:var(--primary-dark);color:#fff}
.float-cta.is-visible{opacity:1;pointer-events:auto;transform:translateY(0)}
.float-cta svg{width:18px;height:18px}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .nav-desktop{gap:0}
  .nav-link{padding:0 9px;font-size:14px}
  .hero-grid{gap:36px}
  .related-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1.6fr 1fr 1fr;gap:32px}
  .footer-grid > div:last-child{grid-column:1 / -1}
}
@media (max-width:900px){
  .nav-desktop{display:none}
  .nav-cta{min-height:40px;padding:0 14px;font-size:13px}
  .mobile-tab{display:block}
  body{padding-bottom:84px}
  .float-cta{
    left:12px;right:12px;bottom:76px;height:48px;min-height:48px;
    border-radius:12px;justify-content:center;font-size:14px;
  }
  .site-footer{margin-top:64px}
  .section{padding:56px 0}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-copy{order:1}
  .hero-figure{order:2}
  .hero-badge{left:14px;bottom:-12px}
  .check-grid{grid-template-columns:1fr;gap:18px}
  .scene-grid{grid-template-columns:1fr;gap:18px}
  .timeline{grid-template-columns:1fr;gap:18px}
  .timeline::before{
    left:22px;right:auto;top:20px;bottom:20px;width:2px;height:auto;
    background:var(--primary-light);
  }
  .tl-item{margin-left:0}
  .dark-note{grid-template-columns:1fr;padding:28px 24px;gap:18px}
  .dark-note ul{grid-template-columns:1fr}
  .cta-band{padding:32px 24px;gap:22px;border-radius:20px}
  .related-grid{grid-template-columns:1fr;gap:14px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-grid > div:last-child{grid-column:auto}
}
@media (max-width:520px){
  .shell{padding:0 20px}
  .brand-name{font-size:16px}
  .brand-mark{width:32px;height:32px;border-radius:9px}
  .nav-cta{padding:0 12px;font-size:12px}
  .hero-copy h1{font-size:30px}
  .hero-lead{font-size:16px}
  .hero-actions .btn{width:100%}
  .hero-trust span{padding:0 10px;font-size:12px}
  .scene-card{grid-template-columns:1fr}
  .scene-card img{width:100%;height:150px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
  .tab-item{font-size:10px}
  .tab-item svg{width:21px;height:21px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
  }
}

/* roulang page: category4 */
:root{
    --brand:#2F6F9E;
    --brand-dark:#245A82;
    --brand-light:#DCEBF5;
    --brand-mist:#E8F3FA;
    --bg:#F7FAFC;
    --surface:#FFFFFF;
    --ink:#12212E;
    --ink-2:#4A5B68;
    --line:#E1EAF1;
    --teal:#3D9A8B;
    --sand:#E89B5B;
    --sand-soft:#FBF0E4;
    --shadow-card:0 10px 30px rgba(18,33,46,.08);
    --shadow-card-hover:0 16px 40px rgba(18,33,46,.12);
    --r-card:18px;
    --r-img:16px;
    --r-btn:12px;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
    font-size:16px;
    line-height:1.8;
    color:var(--ink);
    background:var(--bg);
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button{font-family:inherit;}
  h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.25;letter-spacing:-.01em;}
  p{margin:0;}
  ul{margin:0;padding:0;list-style:none;}
  .num{font-variant-numeric:tabular-nums;}
  a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
    outline:2px solid rgba(47,111,158,.42);
    outline-offset:2px;
    border-radius:8px;
  }

  /* 容器 */
  .shell{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
  @media (max-width:768px){.shell{padding:0 20px;}}

  /* 顶部导航 */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(255,255,255,.94);
    border-bottom:1px solid var(--line);
    transition:box-shadow .25s ease;
  }
  .site-header.is-scrolled{box-shadow:0 6px 20px rgba(18,33,46,.08);}
  .nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px;}
  .brand{display:flex;align-items:center;gap:10px;flex:none;}
  .brand-mark{
    width:38px;height:38px;border-radius:12px;flex:none;
    background:linear-gradient(150deg,#3A82B4,#245A82);
    display:flex;align-items:center;justify-content:center;
    box-shadow:0 6px 16px rgba(36,90,130,.28);
  }
  .brand-mark svg{width:22px;height:22px;}
  .brand-name{font-size:18px;font-weight:800;letter-spacing:-.01em;color:var(--ink);white-space:nowrap;}
  .nav-desktop{display:flex;align-items:center;gap:6px;}
  .nav-link{
    position:relative;display:inline-flex;align-items:center;height:40px;padding:0 12px;
    font-size:15px;font-weight:500;color:var(--ink-2);border-radius:10px;
    transition:color .2s ease,background .2s ease;
  }
  .nav-link:hover{color:var(--brand);background:var(--brand-mist);}
  .nav-link.is-active{color:var(--brand);font-weight:600;}
  .nav-link.is-active::after{
    content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
    background:var(--brand);border-radius:2px;
  }
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 22px;border-radius:var(--r-btn);
    font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
    transition:background .2s ease,color .2s ease,transform .15s ease,box-shadow .2s ease;
  }
  .btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(47,111,158,.24);}
  .btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);}
  .btn-primary:active{transform:translateY(0);}
  .btn-ghost{background:#fff;color:var(--brand);border-color:var(--line);}
  .btn-ghost:hover{background:var(--brand-mist);border-color:#C7DEEE;}
  .btn-block{width:100%;}
  .nav-cta{flex:none;height:42px;padding:0 18px;font-size:14px;}
  @media (max-width:1024px){
    .nav-desktop{display:none;}
    .brand-name{font-size:17px;}
  }

  /* Hero */
  .hero{
    position:relative;overflow:hidden;
    padding:72px 0 64px;
    background:
      radial-gradient(760px 360px at 18% 2%,#E7F2FA 0%,rgba(231,242,250,0) 68%),
      radial-gradient(620px 300px at 84% 8%,#EAF6F3 0%,rgba(234,246,243,0) 70%),
      #FBFDFE;
    border-bottom:1px solid var(--line);
  }
  .hero::after{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:radial-gradient(#C9DCEA 1px,transparent 1px);
    background-size:22px 22px;opacity:.35;
    -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.55),transparent 72%);
    mask-image:linear-gradient(180deg,rgba(0,0,0,.55),transparent 72%);
  }
  .hero-inner{position:relative;z-index:1;max-width:840px;margin:0 auto;text-align:center;}
  .crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);margin-bottom:26px;justify-content:center;}
  .crumb a{color:var(--ink-2);transition:color .2s ease;}
  .crumb a:hover{color:var(--brand);}
  .crumb .sep{color:#AFC4D3;}
  .crumb .current{color:var(--brand);font-weight:600;}
  .hero h1{font-size:clamp(32px,4.6vw,50px);}
  .hero-sub{
    margin:20px auto 0;max-width:660px;
    font-size:17px;line-height:1.85;color:var(--ink-2);
  }
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:32px;}
  .hero-points{
    display:flex;flex-wrap:wrap;justify-content:center;gap:0;margin-top:34px;
    font-size:14px;color:var(--ink-2);
  }
  .hero-points li{padding:0 18px;position:relative;}
  .hero-points li + li::before{
    content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
    width:1px;height:14px;background:var(--line);
  }
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    padding:5px 12px;border-radius:999px;
    background:var(--brand-mist);color:var(--brand);
    font-size:12px;font-weight:600;letter-spacing:.02em;
  }
  .badge-sand{background:var(--sand-soft);color:#B87333;}

  /* 通用板块 */
  .section{padding:84px 0;}
  .section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
  .section-head{max-width:720px;margin-bottom:44px;}
  .section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
  .section-head h2{font-size:clamp(24px,2.6vw,32px);}
  .section-head p{margin-top:14px;color:var(--ink-2);font-size:16px;line-height:1.85;}
  .eyebrow{font-size:13px;font-weight:700;color:var(--brand);letter-spacing:.08em;margin-bottom:12px;}

  /* 流程步骤 */
  .flow{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
  .flow-step{
    position:relative;background:var(--surface);border:1px solid var(--line);
    border-radius:var(--r-card);padding:26px 22px 24px;box-shadow:var(--shadow-card);
    transition:transform .2s ease,box-shadow .2s ease;
  }
  .flow-step:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover);}
  .flow-step .idx{
    display:inline-flex;align-items:center;justify-content:center;
    width:38px;height:38px;border-radius:999px;
    background:var(--brand-light);color:var(--brand-dark);
    font-weight:800;font-size:15px;margin-bottom:14px;
  }
  .flow-step h3{font-size:18px;margin-bottom:8px;}
  .flow-step p{font-size:14px;color:var(--ink-2);line-height:1.75;}
  .flow-line{position:absolute;top:44px;right:-14px;width:26px;height:0;border-top:2px dashed #C7DEEE;}
  .flow-step:last-child .flow-line{display:none;}

  /* 服务卡 2x2 */
  .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
  .card{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
    padding:28px;box-shadow:var(--shadow-card);
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover);border-color:#CFE1EE;}
  .card h3{font-size:19px;margin:14px 0 10px;}
  .card p{font-size:15px;color:var(--ink-2);line-height:1.8;}
  .card-list{margin-top:16px;display:grid;gap:8px;}
  .card-list li{
    position:relative;padding-left:20px;font-size:14px;color:var(--ink-2);line-height:1.75;
  }
  .card-list li::before{
    content:"";position:absolute;left:2px;top:.62em;
    width:7px;height:7px;border-radius:2px;background:var(--teal);opacity:.85;
  }
  .icon-box{
    width:44px;height:44px;border-radius:14px;
    background:var(--brand-mist);color:var(--brand-dark);
    display:flex;align-items:center;justify-content:center;
  }
  .icon-box svg{width:22px;height:22px;}

  /* 响应说明 */
  .split{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;}
  .figure{
    border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);
    box-shadow:var(--shadow-card);background:#EDF3F8;aspect-ratio:4/3;
  }
  .figure img{width:100%;height:100%;object-fit:cover;}
  .table-like{
    margin-top:26px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
    overflow:hidden;box-shadow:var(--shadow-card);
  }
  .row{
    display:grid;grid-template-columns:1fr 1.2fr;gap:12px;
    padding:14px 20px;font-size:14px;border-bottom:1px solid var(--line);
  }
  .row:last-child{border-bottom:none;}
  .row dt{color:var(--ink);font-weight:600;}
  .row dd{margin:0;color:var(--ink-2);}
  .note{
    margin-top:22px;display:flex;gap:12px;
    background:var(--sand-soft);border:1px solid #F0D9BF;border-radius:14px;
    padding:16px 18px;font-size:14px;color:#7A5326;line-height:1.75;
  }
  .note svg{width:20px;height:20px;flex:none;margin-top:2px;color:#B87333;}

  /* 表单 */
  .contact-wrap{display:grid;grid-template-columns:.95fr 1.05fr;gap:44px;align-items:start;}
  .form-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
    padding:30px;box-shadow:var(--shadow-card);
  }
  .field{margin-bottom:18px;}
  .field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--ink);}
  .field input,.field select{
    width:100%;height:48px;padding:0 14px;
    font-size:15px;color:var(--ink);
    background:var(--bg);border:1px solid #DCE6EE;border-radius:12px;
    transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
  }
  .field input::placeholder{color:#93A6B4;}
  .field input:focus,.field select:focus{
    background:#fff;border-color:var(--brand);
    box-shadow:0 0 0 3px rgba(47,111,158,.14);outline:none;
  }
  .hint{font-size:13px;color:var(--ink-2);margin-top:10px;line-height:1.7;}
  .form-msg{
    display:none;margin-top:14px;font-size:14px;color:#1F6F62;
    background:#EAF6F3;border:1px solid #CBE7E0;border-radius:12px;padding:12px 14px;
  }
  .form-msg.is-visible{display:block;}

  /* FAQ */
  .faq{border:1px solid var(--line);border-radius:var(--r-card);background:#fff;box-shadow:var(--shadow-card);overflow:hidden;}
  .faq-item + .faq-item{border-top:1px solid var(--line);}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:20px 24px;background:transparent;border:0;cursor:pointer;
    font-size:16px;font-weight:600;color:var(--ink);text-align:left;
    transition:background .2s ease;
  }
  .faq-q:hover{background:#F6FAFD;}
  .faq-q svg{width:20px;height:20px;flex:none;color:var(--brand);transition:transform .25s ease;}
  .faq-q[aria-expanded="true"] svg{transform:rotate(180deg);}
  .faq-a{padding:0 24px 22px;font-size:15px;color:var(--ink-2);line-height:1.85;display:none;}
  .faq-a.is-open{display:block;}

  /* 结尾 CTA */
  .cta-band{
    background:linear-gradient(135deg,#245A82,#2F6F9E 55%,#3A82B4);
    border-radius:24px;padding:48px 44px;color:#fff;
    display:flex;align-items:center;justify-content:space-between;gap:32px;
    box-shadow:0 18px 44px rgba(36,90,130,.28);
  }
  .cta-band h2{font-size:clamp(22px,2.4vw,28px);color:#fff;}
  .cta-band p{margin-top:12px;color:#D6E6F1;font-size:15px;max-width:520px;line-height:1.8;}
  .btn-white{background:#fff;color:var(--brand-dark);}
  .btn-white:hover{background:#EAF3F9;transform:translateY(-1px);}
  .back-link{
    display:inline-flex;align-items:center;gap:6px;
    font-size:15px;font-weight:600;color:var(--brand);
    transition:gap .2s ease,color .2s ease;
  }
  .back-link:hover{gap:10px;color:var(--brand-dark);}

  /* 页脚 */
  .site-footer{background:var(--ink);color:#C9D6E0;margin-top:84px;padding:64px 0 32px;}
  .footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:40px;}
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
  .footer-brand .brand-name{color:#fff;font-size:17px;}
  .footer-desc{font-size:14px;line-height:1.85;color:#A9BCCA;max-width:320px;}
  .footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
  .footer-links{display:grid;gap:10px;}
  .footer-links a{font-size:14px;color:#C9D6E0;transition:color .2s ease,transform .2s ease;}
  .footer-links a:hover{color:#fff;}
  .footer-contact{display:grid;gap:10px;font-size:14px;color:#C9D6E0;}
  .footer-contact strong{color:#fff;font-weight:600;}
  .footer-bottom{
    margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
    display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
    font-size:13px;color:#8FA4B3;
  }

  /* 浮动 CTA */
  .float-cta{
    position:fixed;right:24px;bottom:24px;z-index:55;
    display:inline-flex;align-items:center;gap:8px;
    height:48px;padding:0 22px;border-radius:999px;
    background:var(--brand);color:#fff;font-size:15px;font-weight:600;
    box-shadow:0 12px 28px rgba(47,111,158,.34);
    opacity:0;visibility:hidden;transform:translateY(12px);
    transition:opacity .25s ease,transform .25s ease,background .2s ease,visibility .25s;
  }
  .float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
  .float-cta:hover{background:var(--brand-dark);}
  .float-cta svg{width:18px;height:18px;}

  /* 移动底部 Tab */
  .tabbar{display:none;}
  .tab-drawer{display:none;}

  @media (max-width:1024px){
    .flow{grid-template-columns:repeat(2,1fr);}
    .flow-step:nth-child(2) .flow-line{display:none;}
    .split{gap:32px;}
    .contact-wrap{grid-template-columns:1fr;gap:32px;}
    .section{padding:64px 0;}
  }
  @media (max-width:768px){
    body{padding-bottom:calc(80px + env(safe-area-inset-bottom));}
    .hero{padding:52px 0 48px;}
    .hero-points{flex-direction:column;gap:8px;}
    .hero-points li{padding:0;}
    .hero-points li + li::before{display:none;}
    .hero-actions .btn{width:100%;}
    .grid-2{grid-template-columns:1fr;}
    .split{grid-template-columns:1fr;}
    .split .figure{order:-1;}
    .flow{grid-template-columns:1fr;gap:14px;}
    .flow-line{display:none;}
    .cta-band{flex-direction:column;align-items:flex-start;padding:34px 26px;border-radius:20px;}
    .cta-band .btn{width:100%;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
    .site-footer{margin-top:64px;padding:48px 0 28px;}
    .section{padding:56px 0;}
    .section-head{margin-bottom:30px;}
    .float-cta{
      left:12px;right:12px;bottom:calc(76px + env(safe-area-inset-bottom));
      width:auto;justify-content:center;height:48px;font-size:14px;
    }
    .tabbar{
      display:flex;position:fixed;left:0;right:0;bottom:0;z-index:70;
      height:calc(64px + env(safe-area-inset-bottom));
      padding-bottom:env(safe-area-inset-bottom);
      background:rgba(255,255,255,.98);border-top:1px solid var(--line);
      box-shadow:0 -6px 20px rgba(18,33,46,.07);
    }
    .tab-item{
      flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
      font-size:11px;color:var(--ink-2);position:relative;border:0;background:none;cursor:pointer;
      min-height:44px;
    }
    .tab-item svg{width:22px;height:22px;stroke-width:1.5;}
    .tab-item.is-active{color:var(--brand);font-weight:600;}
    .tab-item.is-active::before{
      content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
      width:22px;height:2px;border-radius:2px;background:var(--brand);
    }
    .tab-drawer{
      display:block;position:fixed;left:0;right:0;bottom:0;z-index:80;
      background:#fff;border-radius:20px 20px 0 0;
      box-shadow:0 -14px 40px rgba(18,33,46,.18);
      transform:translateY(110%);transition:transform .3s ease;
      padding:18px 20px calc(28px + env(safe-area-inset-bottom));
    }
    .tab-drawer.is-open{transform:translateY(0);}
    .tab-drawer-title{font-size:14px;font-weight:700;color:var(--ink);margin-bottom:12px;}
    .tab-drawer a{
      display:flex;align-items:center;justify-content:space-between;
      padding:14px 4px;font-size:15px;color:var(--ink);border-bottom:1px solid var(--line);
    }
    .tab-drawer a:last-of-type{border-bottom:0;}
    .tab-drawer a.is-current{color:var(--brand);font-weight:600;}
    .drawer-mask{
      display:none;position:fixed;inset:0;background:rgba(18,33,46,.36);z-index:75;
    }
    .drawer-mask.is-open{display:block;}
  }
  @media (max-width:520px){
    .footer-grid{grid-template-columns:1fr;gap:26px;}
    .footer-bottom{flex-direction:column;}
    .brand-name{font-size:16px;}
    .nav-cta{height:38px;padding:0 12px;font-size:13px;}
    .card{padding:22px;}
    .form-card{padding:22px;}
    .faq-q{padding:16px 18px;font-size:15px;}
    .faq-a{padding:0 18px 18px;}
    .row{grid-template-columns:1fr;gap:2px;}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
    html{scroll-behavior:auto;}
  }

/* roulang page: category5 */
:root {
    --brand: #2F6F9E;
    --brand-dark: #245A82;
    --brand-soft: #DCEBF5;
    --brand-tint: #E8F3FA;
    --canvas: #F7FAFC;
    --surface: #FFFFFF;
    --ink: #12212E;
    --muted: #4A5B68;
    --line: #E1EAF1;
    --teal: #3D9A8B;
    --sand: #E89B5B;
    --sand-soft: #FDF1E5;
    --radius-card: 18px;
    --radius-img: 16px;
    --radius-btn: 12px;
    --shadow-sm: 0 10px 30px rgba(18, 33, 46, 0.08);
    --shadow-md: 0 16px 40px rgba(18, 33, 46, 0.12);
    --header-h: 72px;
  }

  *, *::before, *::after { box-sizing: border-box; }

  html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

  body {
    margin: 0;
    padding-top: var(--header-h);
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
    font-size: 16px;
    line-height: 1.8;
    color: var(--ink);
    background: var(--canvas);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
  }

  @media (max-width: 1023px) {
    body { padding-bottom: 88px; }
  }

  img { max-width: 100%; display: block; }
  a { color: var(--brand); text-decoration: none; }
  button { font-family: inherit; }
  h1, h2, h3, h4 { margin: 0; letter-spacing: -0.01em; line-height: 1.25; font-weight: 800; }
  p { margin: 0; }
  ul, ol { margin: 0; padding: 0; list-style: none; }

  :focus-visible {
    outline: 2px solid rgba(47, 111, 158, 0.4);
    outline-offset: 2px;
  }

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

  @media (min-width: 1024px) {
    .shell { padding-left: 32px; padding-right: 32px; }
  }

  /* ---------- Header ---------- */
  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 60;
    background: rgba(255, 255, 255, 0.94);
    border-bottom: 1px solid var(--line);
    transition: box-shadow 0.25s ease, background 0.25s ease;
  }

  .site-header.is-scrolled {
    box-shadow: 0 8px 24px rgba(18, 33, 46, 0.09);
    background: rgba(255, 255, 255, 0.98);
  }

  .nav-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    height: var(--header-h);
  }

  .brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--ink);
    flex-shrink: 0;
  }

  .brand-mark {
    width: 36px;
    height: 36px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #3C86B8, var(--brand) 55%, var(--brand-dark));
    box-shadow: 0 6px 16px rgba(47, 111, 158, 0.28);
    flex: 0 0 auto;
  }

  .brand-mark svg { width: 22px; height: 22px; }

  .brand-name {
    font-size: 17px;
    font-weight: 800;
    letter-spacing: -0.01em;
    white-space: nowrap;
  }

  .nav-desktop { display: none; }

  @media (min-width: 1024px) {
    .nav-desktop {
      display: flex;
      align-items: center;
      gap: 4px;
    }
  }

  .nav-link {
    position: relative;
    display: inline-flex;
    align-items: center;
    min-height: 40px;
    padding: 8px 12px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 500;
    color: var(--muted);
    transition: color 0.2s ease, background 0.2s ease;
    white-space: nowrap;
  }

  .nav-link:hover { color: var(--brand-dark); background: var(--brand-soft); }

  .nav-link.is-active { color: var(--brand); font-weight: 600; }

  .nav-link.is-active::after {
    content: "";
    position: absolute;
    left: 12px;
    right: 12px;
    bottom: 2px;
    height: 2px;
    border-radius: 2px;
    background: var(--brand);
  }

  /* ---------- Buttons ---------- */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 46px;
    padding: 12px 22px;
    border-radius: var(--radius-btn);
    border: 1px solid transparent;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.18s ease, background 0.18s ease, color 0.18s ease,
                box-shadow 0.18s ease, border-color 0.18s ease;
  }

  .btn-primary {
    background: var(--brand);
    color: #fff;
    box-shadow: 0 10px 24px rgba(47, 111, 158, 0.24);
  }

  .btn-primary:hover { background: var(--brand-dark); transform: translateY(-1px); }
  .btn-primary:active { transform: translateY(0); box-shadow: 0 6px 16px rgba(47, 111, 158, 0.22); }

  .btn-ghost {
    background: #fff;
    color: var(--ink);
    border-color: var(--line);
  }

  .btn-ghost:hover { background: var(--brand-soft); border-color: #CBE0EE; color: var(--brand-dark); }

  .btn-light { background: #fff; color: var(--brand-dark); }
  .btn-light:hover { background: var(--brand-soft); }

  .btn-outline-light {
    background: transparent;
    color: #fff;
    border-color: rgba(255, 255, 255, 0.42);
  }

  .btn-outline-light:hover { background: rgba(255, 255, 255, 0.12); border-color: #fff; }

  .nav-cta { padding: 9px 16px; min-height: 40px; font-size: 13.5px; white-space: nowrap; }

  @media (min-width: 1024px) {
    .nav-cta { padding: 11px 20px; min-height: 44px; font-size: 14.5px; }
  }

  /* ---------- Breadcrumb ---------- */
  .breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    padding-top: 22px;
    font-size: 13.5px;
    color: var(--muted);
  }

  .breadcrumb a { color: var(--muted); }
  .breadcrumb a:hover { color: var(--brand); }
  .breadcrumb .sep { color: #B7C7D3; }
  .breadcrumb [aria-current="page"] { color: var(--ink); font-weight: 600; }

  /* ---------- Hero ---------- */
  .hero-sec {
    position: relative;
    overflow: hidden;
    background: linear-gradient(180deg, #F0F7FB 0%, var(--canvas) 100%);
    border-bottom: 1px solid var(--line);
  }

  .hero-bg {
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/backpic/back-1.webp');
    background-size: cover;
    background-position: center;
    opacity: 0.14;
    pointer-events: none;
  }

  .hero-dots {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(rgba(47, 111, 158, 0.18) 1px, transparent 1px);
    background-size: 22px 22px;
    opacity: 0.55;
    pointer-events: none;
    mask-image: radial-gradient(circle at 50% 30%, #000 0%, transparent 72%);
    -webkit-mask-image: radial-gradient(circle at 50% 30%, #000 0%, transparent 72%);
  }

  .hero-narrow {
    position: relative;
    max-width: 860px;
    margin: 0 auto;
    padding: 48px 0 56px;
    text-align: center;
  }

  @media (min-width: 1024px) {
    .hero-narrow { padding: 72px 0 76px; }
  }

  .badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 13px;
    border-radius: 999px;
    background: var(--brand-tint);
    color: var(--brand-dark);
    font-size: 12.5px;
    font-weight: 600;
    letter-spacing: 0.02em;
  }

  .badge-sand {
    background: var(--sand-soft);
    color: #B4702F;
  }

  .hero-title {
    margin-top: 18px;
    font-size: clamp(32px, 6.4vw, 48px);
    font-weight: 800;
    letter-spacing: -0.02em;
  }

  .hero-lead {
    margin: 16px auto 0;
    max-width: 620px;
    font-size: 16px;
    color: var(--muted);
    line-height: 1.85;
  }

  @media (min-width: 768px) {
    .hero-lead { font-size: 17px; }
  }

  .hero-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 28px;
    align-items: stretch;
  }

  @media (min-width: 520px) {
    .hero-actions { flex-direction: row; justify-content: center; align-items: center; }
  }

  .hero-meta {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px 22px;
    margin-top: 30px;
    font-size: 13.5px;
    color: var(--muted);
  }

  .hero-meta li { display: inline-flex; align-items: center; gap: 7px; }

  .hero-meta li::before {
    content: "";
    width: 6px;
    height: 6px;
    border-radius: 999px;
    background: var(--teal);
    flex: 0 0 auto;
  }

  .hero-meta li + li { border-left: 1px solid var(--line); padding-left: 22px; }
  @media (max-width: 519px) {
    .hero-meta li + li { border-left: 0; padding-left: 0; }
  }

  /* ---------- Section base ---------- */
  .section { padding: 56px 0; }
  @media (min-width: 1024px) { .section { padding: 88px 0; } }

  .sec-head { max-width: 700px; }

  .eyebrow {
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--brand);
    text-transform: uppercase;
  }

  .sec-title {
    margin-top: 10px;
    font-size: clamp(24px, 4vw, 32px);
  }

  .sec-desc {
    margin-top: 12px;
    font-size: 15.5px;
    color: var(--muted);
  }

  /* ---------- FAQ layout ---------- */
  .faq-layout { display: grid; gap: 32px; }

  @media (min-width: 1024px) {
    .faq-layout {
      grid-template-columns: 268px minmax(0, 1fr);
      gap: 52px;
      align-items: start;
    }
  }

  .group-nav {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    padding: 18px;
    box-shadow: var(--shadow-sm);
  }

  @media (min-width: 1024px) {
    .group-nav {
      position: sticky;
      top: 96px;
    }
  }

  .group-nav-title {
    font-size: 12.5px;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--muted);
    padding: 0 6px 12px;
    border-bottom: 1px solid var(--line);
  }

  .group-nav-list {
    display: flex;
    gap: 8px;
    margin-top: 12px;
    overflow-x: auto;
    padding-bottom: 4px;
    scrollbar-width: thin;
  }

  @media (min-width: 1024px) {
    .group-nav-list {
      display: block;
      overflow: visible;
      margin-top: 10px;
      padding-bottom: 0;
    }
  }

  .group-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 10px;
    font-size: 14.5px;
    font-weight: 500;
    color: var(--muted);
    white-space: nowrap;
    transition: background 0.2s ease, color 0.2s ease;
  }

  .group-link .dot {
    width: 6px;
    height: 6px;
    border-radius: 999px;
    background: #BFD3E0;
    flex: 0 0 auto;
    transition: background 0.2s ease;
  }

  .group-link:hover { background: var(--brand-soft); color: var(--brand-dark); }
  .group-link:hover .dot { background: var(--brand); }

  .group-link.is-active {
    background: var(--brand-tint);
    color: var(--brand-dark);
    font-weight: 600;
  }

  .group-link.is-active .dot { background: var(--brand); }

  .group-nav-foot {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--line);
    font-size: 13px;
    color: var(--muted);
    line-height: 1.7;
  }

  .group-nav-foot a {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    margin-top: 8px;
    font-weight: 600;
  }

  .group-nav-foot a:hover { color: var(--brand-dark); }

  /* ---------- FAQ groups ---------- */
  .faq-group { scroll-margin-top: 96px; }
  .faq-group + .faq-group { margin-top: 44px; }

  .faq-group-head {
    display: flex;
    align-items: baseline;
    gap: 12px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--line);
    margin-bottom: 18px;
  }

  .faq-group-head h2 { font-size: 21px; }
  @media (min-width: 768px) { .faq-group-head h2 { font-size: 23px; } }

  .faq-group-head .count {
    font-size: 12.5px;
    font-weight: 600;
    color: var(--brand);
    background: var(--brand-tint);
    padding: 3px 10px;
    border-radius: 999px;
    white-space: nowrap;
  }

  .faq-group-note {
    font-size: 14px;
    color: var(--muted);
    margin: -6px 0 18px;
  }

  .faq-item {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 14px;
    transition: box-shadow 0.22s ease, border-color 0.22s ease;
    overflow: hidden;
  }

  .faq-item + .faq-item { margin-top: 12px; }

  .faq-item:hover { border-color: #CBE0EE; }

  .faq-item.is-open {
    border-color: #BEDAEC;
    box-shadow: var(--shadow-sm);
  }

  .faq-q {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 17px 20px;
    background: none;
    border: 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--ink);
    text-align: left;
    cursor: pointer;
    min-height: 56px;
    transition: color 0.18s ease;
  }

  .faq-q:hover { color: var(--brand); }

  .faq-icon {
    flex: 0 0 auto;
    width: 26px;
    height: 26px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--brand-tint);
    color: var(--brand);
    transition: transform 0.25s ease, background 0.25s ease, color 0.25s ease;
  }

  .faq-icon svg { width: 15px; height: 15px; }

  .faq-item.is-open .faq-icon {
    transform: rotate(180deg);
    background: var(--brand);
    color: #fff;
  }

  .faq-a {
    padding: 0 20px 20px;
    font-size: 15px;
    color: var(--muted);
    line-height: 1.9;
  }

  .faq-a p + p { margin-top: 10px; }
  .faq-a strong { color: var(--ink); font-weight: 600; }

  [hidden] { display: none !important; }

  /* ---------- Steps ---------- */
  .steps-3 {
    display: grid;
    gap: 18px;
    margin-top: 34px;
  }

  @media (min-width: 768px) {
    .steps-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
  }

  .step-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    padding: 24px 22px;
    box-shadow: var(--shadow-sm);
    transition: transform 0.22s ease, box-shadow 0.22s ease;
  }

  .step-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }

  .step-num {
    font-size: 13px;
    font-weight: 800;
    color: var(--brand);
    letter-spacing: 0.08em;
    font-variant-numeric: tabular-nums;
  }

  .step-card h3 { margin-top: 10px; font-size: 18px; }
  .step-card p { margin-top: 8px; font-size: 14.5px; color: var(--muted); }

  /* ---------- Notice ---------- */
  .notice {
    border: 1px solid #F2D9BF;
    border-left: 4px solid var(--sand);
    background: var(--sand-soft);
    border-radius: 14px;
    padding: 22px 22px;
  }

  .notice h2 {
    font-size: 19px;
    color: #8A5220;
    display: flex;
    align-items: center;
    gap: 9px;
  }

  .notice ul { margin-top: 14px; display: grid; gap: 10px; }

  @media (min-width: 768px) {
    .notice ul { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 28px; }
  }

  .notice li {
    position: relative;
    padding-left: 20px;
    font-size: 14.5px;
    color: #6E4519;
    line-height: 1.8;
  }

  .notice li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 11px;
    width: 7px;
    height: 7px;
    border-radius: 2px;
    background: var(--sand);
  }

  /* ---------- Split (image + text) ---------- */
  .split {
    display: grid;
    gap: 32px;
    align-items: center;
  }

  @media (min-width: 900px) {
    .split { grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); gap: 56px; }
  }

  .figure {
    border-radius: var(--radius-img);
    overflow: hidden;
    border: 1px solid var(--line);
    background: #EAF1F6;
    box-shadow: var(--shadow-sm);
    aspect-ratio: 4 / 3;
  }

  .figure img { width: 100%; height: 100%; object-fit: cover; }

  .check-list { margin-top: 22px; display: grid; gap: 14px; }

  .check-list li {
    display: flex;
    gap: 12px;
    font-size: 15px;
    color: var(--muted);
    line-height: 1.8;
  }

  .check-list .tick {
    flex: 0 0 auto;
    width: 22px;
    height: 22px;
    margin-top: 3px;
    border-radius: 999px;
    background: var(--brand-tint);
    color: var(--brand);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 800;
  }

  .check-list strong { color: var(--ink); font-weight: 600; }

  .text-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14.5px;
    font-weight: 600;
    color: var(--brand);
  }

  .text-link svg { width: 14px; height: 14px; transition: transform 0.2s ease; }
  .text-link:hover { color: var(--brand-dark); }
  .text-link:hover svg { transform: translateX(3px); }

  /* ---------- CTA ---------- */
  .cta-card {
    position: relative;
    overflow: hidden;
    border-radius: 22px;
    background: linear-gradient(120deg, #16324A 0%, #12212E 60%, #17394F 100%);
    color: #fff;
    padding: 34px 24px;
  }

  @media (min-width: 900px) {
    .cta-card {
      padding: 52px;
      display: grid;
      grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
      gap: 48px;
      align-items: center;
    }
  }

  .cta-card::after {
    content: "";
    position: absolute;
    right: -80px;
    top: -80px;
    width: 280px;
    height: 280px;
    border-radius: 999px;
    background: radial-gradient(circle, rgba(61, 154, 139, 0.35) 0%, transparent 68%);
    pointer-events: none;
  }

  .cta-card h2 {
    font-size: clamp(23px, 3.6vw, 30px);
    letter-spacing: -0.01em;
  }

  .cta-card p {
    margin-top: 14px;
    font-size: 15px;
    color: #C9D6E0;
    line-height: 1.85;
    max-width: 520px;
  }

  .cta-actions {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 26px;
  }

  @media (min-width: 520px) {
    .cta-actions { flex-direction: row; }
  }

  @media (min-width: 900px) {
    .cta-actions { margin-top: 0; flex-direction: column; }
  }

  .cta-note {
    position: relative;
    font-size: 13px;
    color: #9FB4C3;
    line-height: 1.8;
  }

  /* ---------- Footer ---------- */
  .site-footer {
    background: var(--ink);
    color: #C9D6E0;
    padding: 56px 0 28px;
    margin-top: 8px;
  }

  .footer-grid {
    display: grid;
    gap: 30px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  @media (min-width: 900px) {
    .footer-grid {
      grid-template-columns: 1.9fr 1fr 1fr 1.2fr;
      gap: 40px;
    }
  }

  @media (max-width: 519px) {
    .footer-grid { grid-template-columns: minmax(0, 1fr); }
  }

  .footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #fff;
  }

  .footer-brand .brand-name { color: #fff; }

  .footer-desc {
    margin-top: 14px;
    font-size: 14px;
    line-height: 1.85;
    color: #A9BCCA;
    max-width: 360px;
  }

  .footer-title {
    color: #fff;
    font-size: 14.5px;
    font-weight: 700;
    margin-bottom: 14px;
    letter-spacing: 0.01em;
  }

  .footer-links { display: grid; gap: 10px; }

  .footer-links a {
    color: #A9BCCA;
    font-size: 14px;
    transition: color 0.18s ease;
  }

  .footer-links a:hover { color: #fff; }

  .footer-contact { display: grid; gap: 10px; font-size: 14px; color: #A9BCCA; }
  .footer-contact strong { color: #fff; font-weight: 600; }

  .footer-bottom {
    margin-top: 40px;
    padding-top: 22px;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 10px;
    font-size: 13px;
    color: #8FA6B6;
  }

  /* ---------- Mobile tab bar ---------- */
  .tabbar {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 60;
    display: flex;
    align-items: stretch;
    height: 64px;
    padding-bottom: env(safe-area-inset-bottom);
    background: rgba(255, 255, 255, 0.98);
    border-top: 1px solid var(--line);
    box-shadow: 0 -6px 20px rgba(18, 33, 46, 0.07);
  }

  @media (min-width: 1024px) {
    .tabbar { display: none; }
  }

  .tabbar a {
    flex: 1 1 0;
    min-width: 0;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    color: var(--muted);
    font-size: 10px;
    line-height: 1.2;
    transition: color 0.18s ease;
  }

  .tabbar a svg {
    width: 20px;
    height: 20px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.5;
    stroke-linecap: round;
    stroke-linejoin: round;
  }

  .tabbar a .tab-label {
    display: block;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    padding: 0 2px;
  }

  .tabbar a:hover { color: var(--brand-dark); }

  .tabbar a.is-active { color: var(--brand); }

  .tabbar a.is-active::before {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    border-radius: 2px;
    background: var(--brand);
  }

  /* ---------- Floating CTA ---------- */
  .float-cta {
    position: fixed;
    right: 16px;
    bottom: 20px;
    z-index: 58;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 48px;
    padding: 0 20px;
    border-radius: 999px;
    background: var(--brand);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    box-shadow: 0 14px 30px rgba(36, 90, 130, 0.34);
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease, background 0.2s ease;
  }

  .float-cta:hover { background: var(--brand-dark); }

  .float-cta.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }

  @media (max-width: 1023px) {
    .float-cta {
      left: 12px;
      right: 12px;
      bottom: calc(76px + env(safe-area-inset-bottom));
      height: 48px;
      border-radius: 999px;
    }
  }

  @media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after {
      animation-duration: 0.001ms !important;
      transition-duration: 0.001ms !important;
    }
  }