/* roulang page: index */
:root {
      --brand: #0E4A33;
      --brand-deep: #072A20;
      --brand-mid: #17795A;
      --brand-soft: #E4F2EC;
      --accent: #E4550A;
      --accent-hi: #FF7A1A;
      --accent-soft: #FFF1E8;
      --gold: #F2B01E;
      --bg: #F6F7F4;
      --card: #FFFFFF;
      --line: #E3E8E4;
      --ink: #14201B;
      --ink-soft: #4E5F58;
      --ink-mute: #7E8D86;
      --radius-card: 14px;
      --radius-btn: 10px;
      --shadow-card: 0 1px 2px rgba(7, 42, 32, .06);
      --shadow-lift: 0 10px 28px -14px rgba(7, 42, 32, .22);
      --ease: 180ms ease-out;
    }

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

    html { scroll-behavior: smooth; }

    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
      background: var(--bg);
      color: var(--ink);
      font-size: 16px;
      line-height: 1.85;
      -webkit-font-smoothing: antialiased;
      text-align: left;
      overflow-x: hidden;
    }

    img { max-width: 100%; display: block; }
    a { color: inherit; text-decoration: none; }
    button, input, select, textarea { font: inherit; color: inherit; }
    ul, ol { margin: 0; padding: 0; list-style: none; }

    h1, h2, h3, h4 { margin: 0; line-height: 1.35; }
    p { margin: 0; }

    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 16px;
    }

    @media (min-width: 768px) { .container { padding: 0 24px; } }
    @media (min-width: 1024px) { .container { padding: 0 32px; } }

    .num { font-variant-numeric: tabular-nums; }

    /* ---------- 顶部活动条 ---------- */
    .topbar {
      background: var(--brand-deep);
      color: #C9D8D1;
      font-size: 13px;
    }
    .topbar-inner {
      display: flex;
      align-items: center;
      gap: 12px;
      min-height: 38px;
      padding-top: 6px;
      padding-bottom: 6px;
    }
    .topbar-pill {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(255, 122, 26, .16);
      color: #FFB37A;
      border: 1px solid rgba(255, 122, 26, .4);
      border-radius: 999px;
      padding: 2px 10px;
      font-size: 12px;
      white-space: nowrap;
    }
    .topbar-dot {
      width: 6px; height: 6px; border-radius: 50%;
      background: var(--accent-hi);
      box-shadow: 0 0 0 3px rgba(255, 122, 26, .22);
    }
    .topbar-text { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
    .topbar-link { color: #C9D8D1; border-bottom: 1px solid rgba(201, 216, 209, .35); padding-bottom: 1px; }
    .topbar-link:hover { color: var(--accent-hi); border-color: var(--accent-hi); }
    .topbar-close {
      background: none; border: 0; cursor: pointer; color: #7E8D86;
      font-size: 16px; line-height: 1; padding: 4px 6px; border-radius: 6px;
    }
    .topbar-close:hover { color: #fff; background: rgba(255, 255, 255, .08); }

    /* ---------- 导航 ---------- */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 60;
      background: #fff;
      border-bottom: 1px solid var(--line);
      transition: box-shadow var(--ease);
    }
    .site-header.is-stuck { box-shadow: 0 6px 18px -12px rgba(7, 42, 32, .3); }
    .nav-inner {
      display: flex;
      align-items: center;
      gap: 18px;
      min-height: 68px;
    }
    .logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }
    .logo-mark {
      width: 38px; height: 38px;
      border-radius: 10px;
      background: linear-gradient(140deg, var(--brand-mid), var(--brand));
      color: #fff;
      display: grid;
      place-items: center;
      font-size: 15px;
      font-weight: 700;
      letter-spacing: 1px;
    }
    .logo-text { display: flex; flex-direction: column; }
    .logo-name { font-size: 16px; font-weight: 700; color: var(--brand-deep); letter-spacing: .2px; }
    .logo-sub { font-size: 11px; color: var(--ink-mute); letter-spacing: 1.4px; }

    .nav-links { display: none; align-items: center; gap: 20px; margin-left: 6px; }
    .nav-link {
      position: relative;
      font-size: 14.5px;
      color: var(--ink-soft);
      padding: 22px 0;
      letter-spacing: .3px;
      white-space: nowrap;
      transition: color var(--ease);
    }
    .nav-link:hover { color: var(--brand); }
    .nav-link::after {
      content: "";
      position: absolute;
      left: 0; right: 0; bottom: 14px;
      height: 2px;
      background: transparent;
      border-radius: 2px;
      transition: background var(--ease);
    }
    .nav-link.is-active { color: var(--brand); font-weight: 600; }
    .nav-link.is-active::after { background: var(--accent-hi); }

    .nav-right { margin-left: auto; display: flex; align-items: center; gap: 10px; }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border-radius: var(--radius-btn);
      padding: 11px 20px;
      font-size: 16px;
      font-weight: 700;
      border: 1.5px solid transparent;
      cursor: pointer;
      transition: transform var(--ease), background var(--ease), color var(--ease), border-color var(--ease), box-shadow var(--ease);
      white-space: nowrap;
    }
    .btn:focus-visible { outline: 2px solid var(--accent-hi); outline-offset: 2px; }
    .btn-primary { background: var(--accent); color: #fff; }
    .btn-primary:hover { background: #F0600F; transform: translateY(-1px); box-shadow: var(--shadow-lift); }
    .btn-primary:active { transform: translateY(0); background: #C94A08; }
    .btn-secondary {
      background: #fff; color: var(--brand); border-color: var(--brand);
    }
    .btn-secondary:hover { background: var(--brand-soft); transform: translateY(-1px); }
    .btn-secondary:active { background: #D3E9E0; transform: translateY(0); }
    .btn-ghost {
      background: rgba(255, 255, 255, .06);
      color: #fff;
      border-color: rgba(255, 255, 255, .3);
    }
    .btn-ghost:hover { background: rgba(255, 255, 255, .14); transform: translateY(-1px); }
    .btn-sm { padding: 9px 16px; font-size: 14px; }
    .btn-block { width: 100%; }
    .btn[disabled], .btn.is-disabled { opacity: .5; cursor: not-allowed; transform: none; }

    .nav-icon-btn {
      width: 40px; height: 40px;
      border-radius: 10px;
      border: 1.5px solid var(--line);
      background: #fff;
      color: var(--brand);
      display: grid;
      place-items: center;
      cursor: pointer;
      transition: background var(--ease), border-color var(--ease);
    }
    .nav-icon-btn:hover { background: var(--brand-soft); border-color: var(--brand-mid); }

    .nav-toggle {
      display: grid;
      place-items: center;
      width: 42px; height: 42px;
      border-radius: 10px;
      border: 1.5px solid var(--line);
      background: #fff;
      cursor: pointer;
      color: var(--brand-deep);
    }
    .nav-toggle:hover { background: var(--brand-soft); }

    .mobile-drawer {
      display: none;
      border-top: 1px solid var(--line);
      background: #fff;
      padding: 10px 16px 20px;
    }
    .mobile-drawer.is-open { display: block; }
    .mobile-link {
      display: block;
      padding: 13px 12px;
      border-radius: 10px;
      color: var(--ink-soft);
      font-size: 15px;
    }
    .mobile-link:hover { background: var(--brand-soft); color: var(--brand); }
    .mobile-link.is-active { background: var(--brand-soft); color: var(--brand); font-weight: 600; }

    @media (min-width: 1024px) {
      .nav-links { display: flex; }
      .nav-toggle { display: none; }
      .mobile-drawer { display: none !important; }
    }

    /* ---------- Hero ---------- */
    .hero {
      position: relative;
      background: linear-gradient(120deg, #072A20 0%, #0E4A33 62%, #10603F 100%);
      color: #fff;
      overflow: hidden;
      padding: 64px 0 72px;
    }
    .hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(rgba(255, 255, 255, .07) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .07) 1px, transparent 1px);
      background-size: 54px 54px;
      opacity: .55;
      pointer-events: none;
    }
    .hero::after {
      content: "";
      position: absolute;
      right: -140px; top: -120px;
      width: 460px; height: 460px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(255, 122, 26, .22), transparent 68%);
      pointer-events: none;
    }
    .hero-grid {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: 1fr;
      gap: 40px;
      align-items: center;
    }
    @media (min-width: 1024px) {
      .hero-grid { grid-template-columns: 1.08fr .92fr; gap: 56px; }
      .hero { padding: 84px 0 92px; }
    }

    .hero-eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(255, 255, 255, .1);
      border: 1px solid rgba(255, 255, 255, .22);
      color: #FFD9BC;
      border-radius: 999px;
      padding: 5px 14px;
      font-size: 13px;
    }
    .hero h1 {
      font-size: clamp(28px, 4vw, 44px);
      font-weight: 800;
      line-height: 1.25;
      margin: 18px 0 16px;
      letter-spacing: -.5px;
    }
    .hero-sub {
      font-size: 16px;
      line-height: 1.85;
      color: #CFE3DA;
      max-width: 40em;
    }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

    .trust-row {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 28px;
    }
    .trust-item {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      font-size: 13px;
      color: #CFE3DA;
      background: rgba(255, 255, 255, .07);
      border: 1px solid rgba(255, 255, 255, .14);
      border-radius: 999px;
      padding: 6px 13px;
    }
    .trust-item i { color: var(--accent-hi); }

    .hero-visual { position: relative; }
    .hero-visual img {
      width: 100%;
      border-radius: 16px;
      border: 1px solid rgba(255, 255, 255, .16);
      object-fit: cover;
    }
    .float-badge {
      position: absolute;
      display: inline-flex;
      align-items: center;
      gap: 7px;
      background: #fff;
      color: var(--brand-deep);
      border-radius: 999px;
      padding: 8px 14px;
      font-size: 13px;
      font-weight: 600;
      box-shadow: 0 12px 26px -14px rgba(0, 0, 0, .5);
    }
    .float-badge i { color: var(--accent); }
    .float-badge.b1 { top: 16px; left: -8px; }
    .float-badge.b2 { bottom: 20px; right: -6px; }
    @media (max-width: 520px) {
      .float-badge { font-size: 12px; padding: 6px 11px; }
      .float-badge.b1 { left: 6px; }
      .float-badge.b2 { right: 6px; }
    }

    .stat-strip {
      position: relative;
      z-index: 2;
      margin-top: 48px;
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 1px;
      background: rgba(255, 255, 255, .14);
      border: 1px solid rgba(255, 255, 255, .14);
      border-radius: 14px;
      overflow: hidden;
    }
    @media (min-width: 768px) { .stat-strip { grid-template-columns: repeat(4, 1fr); } }
    .stat-cell {
      background: rgba(7, 42, 32, .55);
      padding: 18px 20px;
    }
    .stat-value { font-size: 24px; font-weight: 800; color: #fff; letter-spacing: -.5px; }
    .stat-value span { font-size: 14px; font-weight: 600; color: #A9C7B9; margin-left: 3px; }
    .stat-label { font-size: 13px; color: #9DBBAE; margin-top: 2px; }

    /* ---------- 通用板块 ---------- */
    .section { padding: 56px 0; }
    @media (min-width: 1024px) { .section { padding: 92px 0; } }
    .section-alt { background: #fff; }
    .section-head { margin-bottom: 34px; }
    .section-head h2 {
      font-size: 26px;
      font-weight: 700;
      letter-spacing: -.3px;
      position: relative;
      padding-left: 16px;
    }
    @media (min-width: 768px) { .section-head h2 { font-size: 30px; } }
    .section-head h2::before {
      content: "";
      position: absolute;
      left: 0; top: 6px; bottom: 6px;
      width: 4px;
      border-radius: 3px;
      background: var(--brand);
    }
    .section-desc { color: var(--ink-soft); margin-top: 12px; max-width: 46em; }
    .head-row {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
    }
    .more-link {
      font-size: 14px;
      color: var(--brand);
      font-weight: 600;
      border-bottom: 1.5px solid rgba(14, 74, 51, .25);
      padding-bottom: 2px;
    }
    .more-link:hover { color: var(--accent); border-color: var(--accent); }

    /* ---------- 阶梯 ---------- */
    .ladder { position: relative; padding-left: 30px; }
    .ladder::before {
      content: "";
      position: absolute;
      left: 9px; top: 12px; bottom: 12px;
      width: 2px;
      background: linear-gradient(180deg, var(--brand-mid), rgba(23, 121, 90, .15));
    }
    .ladder-item { position: relative; margin-bottom: 16px; }
    .ladder-item:last-child { margin-bottom: 0; }
    .ladder-node {
      position: absolute;
      left: -30px; top: 20px;
      width: 20px; height: 20px;
      border-radius: 50%;
      background: #fff;
      border: 2px solid var(--brand-mid);
      color: var(--brand);
      font-size: 11px;
      font-weight: 700;
      display: grid;
      place-items: center;
    }
    .ladder-card {
      background: var(--brand-soft);
      border: 1px solid #CFE6DC;
      border-radius: var(--radius-card);
      padding: 18px 22px;
      transition: transform var(--ease), box-shadow var(--ease);
    }
    .ladder-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lift); }
    .ladder-card h3 { font-size: 17px; font-weight: 700; color: var(--brand-deep); }
    .ladder-cond { font-size: 13px; color: var(--ink-mute); margin-top: 4px; }
    .ladder-benefit { font-size: 14.5px; color: var(--ink-soft); margin-top: 8px; }
    .ladder-item:nth-child(1) .ladder-card { width: 100%; }
    .ladder-item:nth-child(2) .ladder-card { width: 96%; background: #DCEFE6; }
    .ladder-item:nth-child(3) .ladder-card { width: 92%; background: #D2EADF; }
    .ladder-item:nth-child(4) .ladder-card { width: 88%; background: #C7E5D8; }
    @media (max-width: 767px) {
      .ladder-item .ladder-card { width: 100% !important; }
    }

    /* ---------- 对比 ---------- */
    .compare-wrap {
      overflow-x: auto;
      padding-bottom: 6px;
      -webkit-overflow-scrolling: touch;
    }
    .compare-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(212px, 1fr));
      gap: 14px;
      min-width: 900px;
    }
    .plan {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius-card);
      padding: 20px;
      display: flex;
      flex-direction: column;
      position: relative;
      transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
    }
    .plan:hover { transform: translateY(-2px); box-shadow: var(--shadow-lift); }
    .plan.is-featured { border: 1.5px solid var(--brand); background: #FBFEFC; }
    .plan-flag {
      position: absolute;
      top: -12px; right: 16px;
      background: var(--gold);
      color: #3A2A00;
      font-size: 12px;
      font-weight: 700;
      border-radius: 999px;
      padding: 3px 11px;
    }
    .plan-name { font-size: 17px; font-weight: 700; color: var(--brand-deep); }
    .plan-tag { font-size: 13px; color: var(--ink-mute); margin-top: 2px; }
    .plan-rows { margin-top: 16px; flex: 1; }
    .plan-row {
      display: flex;
      justify-content: space-between;
      gap: 10px;
      font-size: 14px;
      padding: 8px 8px;
      border-radius: 8px;
    }
    .plan-row:nth-child(odd) { background: var(--bg); }
    .plan-row dt { color: var(--ink-mute); }
    .plan-row dd { margin: 0; color: var(--ink); font-weight: 600; text-align: right; }

    /* ---------- 最新信息 ---------- */
    .news-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 20px;
    }
    @media (min-width: 640px) { .news-grid { grid-template-columns: repeat(2, 1fr); } }
    @media (min-width: 1024px) { .news-grid { grid-template-columns: repeat(3, 1fr); } }
    .news-card {
      background: var(--card);
      border: 1px solid var(--line);
      border-radius: var(--radius-card);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-card);
      transition: transform var(--ease), box-shadow var(--ease);
    }
    .news-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lift); }
    .news-thumb { display: block; aspect-ratio: 16 / 10; background: var(--brand-soft); overflow: hidden; }
    .news-thumb img { width: 100%; height: 100%; object-fit: cover; }
    .news-body { padding: 18px 20px 20px; display: flex; flex-direction: column; flex: 1; }
    .tag {
      display: inline-block;
      align-self: flex-start;
      background: var(--brand-soft);
      color: var(--brand);
      font-size: 12px;
      border-radius: 999px;
      padding: 3px 11px;
    }
    .news-body h3 { font-size: 17px; font-weight: 600; margin-top: 10px; line-height: 1.5; }
    .news-body h3 a:hover { color: var(--brand); }
    .news-sum {
      font-size: 14px;
      color: var(--ink-soft);
      margin-top: 8px;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
      flex: 1;
    }
    .news-meta {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 10px;
      margin-top: 14px;
      padding-top: 12px;
      border-top: 1px solid var(--line);
      font-size: 13px;
      color: var(--ink-mute);
    }
    .news-meta a { color: var(--brand); font-weight: 600; }
    .news-meta a:hover { color: var(--accent); }
    .news-empty {
      grid-column: 1 / -1;
      background: #fff;
      border: 1px dashed #C6D6CE;
      border-radius: var(--radius-card);
      padding: 40px 20px;
      text-align: center;
      color: var(--ink-mute);
      font-size: 15px;
    }

    /* ---------- 限时入口 ---------- */
    .dark-band {
      position: relative;
      background: linear-gradient(120deg, #072A20, #0E4A33);
      color: #fff;
      border-radius: 18px;
      padding: 32px 24px;
      overflow: hidden;
    }
    .dark-band::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(rgba(255, 255, 255, .06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .06) 1px, transparent 1px);
      background-size: 42px 42px;
      pointer-events: none;
    }
    @media (min-width: 768px) { .dark-band { padding: 40px 40px; } }
    .band-inner {
      position: relative;
      z-index: 2;
      display: flex;
      flex-direction: column;
      gap: 24px;
    }
    @media (min-width: 1024px) {
      .band-inner { flex-direction: row; align-items: center; justify-content: space-between; gap: 40px; }
    }
    .band-title { font-size: 22px; font-weight: 700; }
    .band-desc { font-size: 14.5px; color: #B9D3C7; margin-top: 6px; max-width: 34em; }
    .countdown { display: flex; gap: 10px; margin-top: 18px; }
    .cd-block {
      background: rgba(7, 42, 32, .7);
      border: 1px solid rgba(242, 176, 30, .55);
      border-radius: 10px;
      min-width: 62px;
      padding: 8px 4px;
      text-align: center;
    }
    .cd-num { font-size: 24px; font-weight: 800; color: var(--gold); line-height: 1.2; }
    .cd-label { font-size: 11px; color: #9DBBAE; }
    .progress {
      height: 6px;
      border-radius: 999px;
      background: rgba(255, 255, 255, .16);
      margin-top: 18px;
      overflow: hidden;
    }
    .progress span { display: block; height: 100%; width: 68%; background: linear-gradient(90deg, var(--gold), var(--accent-hi)); }
    .progress-note { font-size: 12.5px; color: #9DBBAE; margin-top: 8px; }
    .band-cta { display: flex; flex-direction: column; gap: 10px; min-width: 210px; }

    /* ---------- 表单 ---------- */
    .form-grid { display: grid; grid-template-columns: 1fr; gap: 34px; }
    @media (min-width: 1024px) { .form-grid { grid-template-columns: .85fr 1.15fr; gap: 48px; align-items: start; } }
    .point-list li {
      display: flex;
      gap: 12px;
      padding: 14px 0;
      border-bottom: 1px dashed var(--line);
    }
    .point-list li:last-child { border-bottom: 0; }
    .point-icon {
      flex-shrink: 0;
      width: 34px; height: 34px;
      border-radius: 10px;
      background: var(--brand-soft);
      color: var(--brand);
      display: grid;
      place-items: center;
      font-size: 14px;
    }
    .point-title { font-size: 15.5px; font-weight: 600; }
    .point-desc { font-size: 14px; color: var(--ink-soft); }

    .form-card {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius-card);
      padding: 24px;
      box-shadow: var(--shadow-card);
    }
    @media (min-width: 768px) { .form-card { padding: 30px; } }
    .field { margin-bottom: 16px; }
    .field label { display: block; font-size: 14px; color: var(--ink-soft); margin-bottom: 6px; }
    .req { color: #C0392B; margin-left: 2px; }
    .field input, .field select, .field textarea {
      width: 100%;
      border: 1px solid var(--line);
      border-radius: var(--radius-btn);
      padding: 10px 13px;
      background: #fff;
      outline: none;
      transition: border-color var(--ease), box-shadow var(--ease);
    }
    .field input, .field select { height: 44px; }
    .field textarea { min-height: 104px; resize: vertical; }
    .field input:focus, .field select:focus, .field textarea:focus {
      border-color: var(--brand-mid);
      box-shadow: 0 0 0 3px rgba(23, 121, 90, .14);
    }
    .field-row { display: grid; grid-template-columns: 1fr; gap: 16px; }
    @media (min-width: 640px) { .field-row { grid-template-columns: 1fr 1fr; } }
    .check-row { display: flex; align-items: flex-start; gap: 9px; font-size: 13.5px; color: var(--ink-soft); }
    .check-row input { width: 17px; height: 17px; margin-top: 4px; accent-color: var(--brand); }
    .form-tip { font-size: 13px; color: var(--ink-mute); margin-top: 12px; }
    .alert-success {
      display: none;
      align-items: center;
      gap: 10px;
      background: var(--brand-soft);
      border: 1px solid #BFE0D1;
      color: var(--brand);
      border-radius: 10px;
      padding: 11px 14px;
      font-size: 14px;
      margin-bottom: 16px;
    }
    .alert-success.is-show { display: flex; }

    /* ---------- FAQ ---------- */
    .faq-wrap { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-card); overflow: hidden; }
    .faq-item { border-bottom: 1px solid var(--line); }
    .faq-item:last-child { border-bottom: 0; }
    .faq-q {
      width: 100%;
      background: none;
      border: 0;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      text-align: left;
      padding: 18px 20px;
      min-height: 56px;
      font-size: 16px;
      font-weight: 600;
      color: var(--ink);
      transition: background var(--ease);
    }
    .faq-q:hover { background: #F9FBFA; }
    .faq-q:focus-visible { outline: 2px solid var(--accent-hi); outline-offset: -2px; }
    .faq-mark {
      flex-shrink: 0;
      width: 24px; height: 24px;
      border-radius: 50%;
      background: var(--brand-soft);
      color: var(--brand);
      display: grid;
      place-items: center;
      font-size: 15px;
      transition: transform var(--ease), background var(--ease);
    }
    .faq-item.is-open .faq-mark { transform: rotate(45deg); background: var(--accent-soft); color: var(--accent); }
    .faq-a { display: none; padding: 0 20px 20px; font-size: 15px; color: var(--ink-soft); }
    .faq-item.is-open .faq-a { display: block; }

    /* ---------- 通栏 CTA ---------- */
    .end-cta {
      position: relative;
      background: linear-gradient(120deg, #072A20, #0E4A33);
      color: #fff;
      overflow: hidden;
    }
    .end-cta::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(rgba(255, 255, 255, .06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .06) 1px, transparent 1px);
      background-size: 46px 46px;
      pointer-events: none;
    }
    .end-cta-inner {
      position: relative;
      z-index: 2;
      padding: 52px 0;
      display: flex;
      flex-direction: column;
      gap: 22px;
    }
    @media (min-width: 900px) {
      .end-cta-inner { flex-direction: row; align-items: center; justify-content: space-between; gap: 40px; padding: 60px 0; }
    }
    .end-cta h2 { font-size: 24px; font-weight: 700; }
    @media (min-width: 768px) { .end-cta h2 { font-size: 28px; } }
    .end-cta p { color: #B9D3C7; margin-top: 8px; font-size: 15px; }
    .end-cta-actions { display: flex; flex-wrap: wrap; gap: 12px; }

    /* ---------- 页脚 ---------- */
    .site-footer { background: var(--brand-deep); color: #C9D8D1; padding: 52px 0 0; }
    .footer-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 30px;
      padding-bottom: 34px;
    }
    @media (min-width: 640px) { .footer-grid { grid-template-columns: repeat(2, 1fr); } }
    @media (min-width: 1024px) { .footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1.1fr; gap: 40px; } }
    .footer-brand { display: flex; align-items: center; gap: 10px; }
    .footer-brand .logo-mark { background: linear-gradient(140deg, #17795A, #0E4A33); }
    .footer-brand-name { font-size: 16px; font-weight: 700; color: #fff; }
    .footer-about { font-size: 13.5px; line-height: 1.9; color: #9DBBAE; margin-top: 14px; max-width: 34em; }
    .footer-title { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 14px; }
    .footer-links li { margin-bottom: 10px; }
    .footer-links a {
      font-size: 14px;
      color: #C9D8D1;
      transition: color var(--ease);
    }
    .footer-links a:hover { color: var(--accent-hi); }
    .footer-contact li { font-size: 14px; color: #C9D8D1; margin-bottom: 10px; display: flex; gap: 9px; }
    .footer-contact i { color: var(--accent-hi); margin-top: 4px; }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, .1);
      padding: 18px 0 24px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      font-size: 13px;
      color: #8FA79B;
    }
    .to-top {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      border: 1px solid rgba(255, 255, 255, .2);
      background: rgba(255, 255, 255, .05);
      color: #C9D8D1;
      border-radius: 999px;
      padding: 7px 14px;
      cursor: pointer;
      font-size: 13px;
      transition: background var(--ease), color var(--ease);
    }
    .to-top:hover { background: rgba(255, 122, 26, .18); color: #FFB37A; }

    .sr-only {
      position: absolute;
      width: 1px; height: 1px;
      padding: 0; margin: -1px;
      overflow: hidden;
      clip: rect(0, 0, 0, 0);
      white-space: nowrap;
      border: 0;
    }

/* roulang page: category1 */
:root{
      --brand:#0E4A33;
      --brand-deep:#072A20;
      --brand-mid:#17795A;
      --brand-light:#E4F2EC;
      --accent:#E4550A;
      --accent-hi:#FF7A1A;
      --accent-light:#FFF1E8;
      --gold:#F2B01E;
      --bg:#F6F7F4;
      --card:#FFFFFF;
      --line:#E3E8E4;
      --ink:#14201B;
      --ink-2:#4E5F58;
      --ink-3:#7E8D86;
      --radius-card:14px;
      --radius-btn:10px;
      --radius-img:12px;
      --shadow-sm:0 1px 2px rgba(7,42,32,.06);
      --shadow-hover:0 10px 28px -14px rgba(7,42,32,.22);
      --font-cn:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
    }

    *,*::before,*::after{box-sizing:border-box}
    html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font-cn);
      background:var(--bg);
      color:var(--ink);
      font-size:16px;
      line-height:1.85;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    h1,h2,h3,h4,p,figure{margin:0}
    ul,ol{margin:0;padding:0;list-style:none}
    img{display:block;max-width:100%;height:auto}
    a{color:inherit;text-decoration:none}
    button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
    input,select,textarea{font:inherit}
    :focus-visible{outline:2px solid var(--accent-hi);outline-offset:2px;border-radius:6px}
    ::selection{background:var(--brand-light);color:var(--brand-deep)}

    .container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
    @media (max-width:1024px){.container{padding:0 24px}}
    @media (max-width:640px){.container{padding:0 16px}}

    /* ---------- header ---------- */
    .site-header{
      position:sticky;top:0;z-index:60;
      background:#fff;
      border-bottom:1px solid var(--line);
      transition:box-shadow .2s ease-out;
    }
    .site-header.is-scrolled{box-shadow:0 8px 24px -16px rgba(7,42,32,.35)}
    .nav-inner{display:flex;align-items:center;gap:22px;height:68px}
    .logo{display:flex;align-items:center;gap:10px;margin-right:auto;flex-shrink:0}
    .logo-mark{
      width:40px;height:40px;border-radius:11px;
      background:var(--brand);color:#fff;
      display:grid;place-items:center;
      font-size:15px;font-weight:800;letter-spacing:1px;
      flex-shrink:0;
    }
    .logo-text{display:flex;flex-direction:column;line-height:1.25}
    .logo-name{font-size:16px;font-weight:800;color:var(--brand-deep);letter-spacing:.2px}
    .logo-sub{font-size:11px;color:var(--ink-3);letter-spacing:.6px}
    .nav-links{display:flex;align-items:center;gap:24px}
    .nav-link{
      position:relative;
      display:inline-block;
      padding:22px 2px;
      font-size:15px;
      color:var(--ink-2);
      letter-spacing:.4px;
      transition:color .18s ease-out;
    }
    .nav-link:hover{color:var(--brand)}
    .nav-link.is-active{color:var(--brand);font-weight:600}
    .nav-link.is-active::after{
      content:"";position:absolute;left:0;right:0;bottom:14px;height:2px;
      border-radius:2px;background:var(--accent);
    }
    .nav-right{display:flex;align-items:center;gap:12px;flex-shrink:0}
    .nav-icon-btn{
      width:40px;height:40px;border-radius:10px;
      border:1px solid var(--line);background:#fff;color:var(--brand);
      display:grid;place-items:center;
      transition:background-color .18s ease-out,border-color .18s ease-out,transform .18s ease-out;
    }
    .nav-icon-btn:hover{background:var(--brand-light);border-color:var(--brand-mid);transform:translateY(-1px)}
    .nav-toggle{
      display:none;width:40px;height:40px;border-radius:10px;
      border:1px solid var(--line);background:#fff;color:var(--brand);
      place-items:center;font-size:16px;
    }
    .nav-toggle:hover{background:var(--brand-light)}
    .mobile-drawer{
      display:none;
      border-top:1px solid var(--line);
      padding:14px 24px 20px;
      background:#fff;
    }
    .mobile-drawer.is-open{display:block}
    .mobile-link{
      display:block;padding:12px 4px;font-size:15px;color:var(--ink-2);
      border-bottom:1px solid var(--line);
    }
    .mobile-link.is-active{color:var(--brand);font-weight:700}
    .mobile-link:last-of-type{border-bottom:0}

    /* ---------- buttons ---------- */
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      height:46px;padding:0 22px;
      border-radius:var(--radius-btn);
      border:1.5px solid transparent;
      font-size:16px;font-weight:700;letter-spacing:.3px;
      transition:transform .18s ease-out,background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
      white-space:nowrap;
    }
    .btn:disabled{opacity:.55;cursor:not-allowed}
    .btn-primary{background:var(--accent);color:#fff}
    .btn-primary:hover{background:#C9480A;transform:translateY(-1px);box-shadow:0 12px 24px -14px rgba(228,85,10,.85)}
    .btn-primary:active{transform:translateY(0);background:#B33F08}
    .btn-secondary{background:#fff;color:var(--brand);border-color:var(--brand)}
    .btn-secondary:hover{background:var(--brand-light);transform:translateY(-1px)}
    .btn-ghost{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.35)}
    .btn-ghost:hover{background:rgba(255,255,255,.2)}
    .btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:9px}
    .btn-lg{height:52px;padding:0 28px;font-size:17px}
    .btn-block{width:100%}

    /* ---------- badges ---------- */
    .badge{
      display:inline-flex;align-items:center;gap:6px;
      padding:4px 12px;border-radius:999px;
      font-size:12.5px;font-weight:600;letter-spacing:.3px;
      background:var(--brand-light);color:var(--brand);
    }
    .badge-accent{background:var(--accent);color:#fff}
    .badge-gold{background:rgba(242,176,30,.18);color:#8A5F00;border:1px solid rgba(242,176,30,.5)}
    .badge-outline{background:#fff;color:var(--ink-2);border:1px solid var(--line)}

    /* ---------- page hero ---------- */
    .page-hero{position:relative;overflow:hidden;background:var(--brand-deep);color:#fff}
    .page-hero__bg{
      position:absolute;inset:0;
      background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
      opacity:.3;
    }
    .page-hero__veil{
      position:absolute;inset:0;
      background:linear-gradient(120deg,rgba(7,42,32,.95) 0%,rgba(14,74,51,.82) 60%,rgba(7,42,32,.92) 100%);
    }
    .page-hero__inner{position:relative;z-index:2;padding:44px 0 58px}
    .breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:#A7C2B8;flex-wrap:wrap}
    .breadcrumb a{transition:color .18s ease-out}
    .breadcrumb a:hover{color:var(--accent-hi)}
    .breadcrumb .sep{opacity:.6}
    .breadcrumb .current{color:#fff;font-weight:700}
    .page-hero h1{
      margin-top:20px;
      font-size:clamp(28px,4vw,44px);
      font-weight:800;line-height:1.25;letter-spacing:.5px;
      max-width:20em;
    }
    .page-hero__sub{
      margin-top:16px;
      max-width:44em;
      font-size:16.5px;
      line-height:1.85;
      color:rgba(255,255,255,.86);
    }
    .hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
    .hero-tag{
      display:inline-flex;align-items:center;gap:7px;
      padding:7px 14px;border-radius:999px;
      border:1px solid rgba(255,255,255,.28);
      background:rgba(255,255,255,.08);
      font-size:13px;color:#EAF6F0;
    }
    .hero-tag i{color:var(--accent-hi)}

    /* ---------- sections ---------- */
    .section{padding:88px 0}
    .section--tight{padding:64px 0}
    .section--alt{background:#fff}
    .section--green{background:var(--brand-light)}
    @media (max-width:768px){.section{padding:56px 0}.section--tight{padding:44px 0}}
    .section-head{max-width:760px;margin-bottom:38px}
    .section-title{
      position:relative;
      padding-left:16px;
      font-size:clamp(24px,3vw,32px);
      font-weight:700;line-height:1.35;color:var(--brand-deep);
    }
    .section-title::before{
      content:"";position:absolute;left:0;top:.22em;
      width:4px;height:20px;border-radius:2px;background:var(--brand);
    }
    .section-desc{margin-top:14px;font-size:16px;color:var(--ink-2);max-width:42em}

    /* ---------- steps timeline ---------- */
    .steps{max-width:920px}
    .step{position:relative;display:grid;grid-template-columns:52px 1fr;gap:22px;padding-bottom:30px}
    .step:last-child{padding-bottom:0}
    .step::before{
      content:"";position:absolute;left:25px;top:56px;bottom:4px;width:2px;
      background:linear-gradient(180deg,var(--line),rgba(227,232,228,.35));
    }
    .step:last-child::before{display:none}
    .step__num{
      position:relative;z-index:2;
      width:52px;height:52px;border-radius:50%;
      background:var(--brand);color:#fff;
      display:grid;place-items:center;
      font-size:17px;font-weight:800;
      font-variant-numeric:tabular-nums;
      box-shadow:0 0 0 6px rgba(228,242,236,.9);
    }
    .step__card{
      background:var(--card);
      border:1px solid var(--line);
      border-radius:var(--radius-card);
      padding:22px 24px;
      box-shadow:var(--shadow-sm);
      transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
    }
    .step__card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#D3E2DB}
    .step__title{font-size:19px;font-weight:700;color:var(--brand-deep);line-height:1.45}
    .step__text{margin-top:10px;font-size:15.5px;color:var(--ink-2);line-height:1.85}
    .step__shot{
      margin-top:16px;
      border-radius:var(--radius-img);
      overflow:hidden;
      border:1px solid var(--line);
      max-width:420px;
      background:var(--brand-light);
    }
    .step__shot img{width:100%;aspect-ratio:16/10;object-fit:cover}
    .step__meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}

    /* ---------- notice card ---------- */
    .notice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
    @media (max-width:900px){.notice-grid{grid-template-columns:1fr}}
    .notice{
      background:#fff;border:1px solid var(--line);border-left:4px solid var(--brand-mid);
      border-radius:var(--radius-card);
      padding:24px;
      transition:transform .18s ease-out,box-shadow .18s ease-out;
    }
    .notice:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
    .notice__icon{
      width:38px;height:38px;border-radius:10px;
      background:var(--brand-light);color:var(--brand);
      display:grid;place-items:center;font-size:16px;margin-bottom:14px;
    }
    .notice__title{font-size:17px;font-weight:700;color:var(--brand-deep)}
    .notice__text{margin-top:8px;font-size:14.5px;color:var(--ink-2);line-height:1.8}

    /* ---------- entry rows ---------- */
    .entry-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden}
    .entry-row{
      display:grid;grid-template-columns:200px 1fr auto;gap:24px;align-items:center;
      padding:22px 26px;
      border-bottom:1px solid var(--line);
      transition:background-color .18s ease-out;
    }
    .entry-row:last-child{border-bottom:0}
    .entry-row:hover{background:#FBFCFA}
    .entry-row__name{display:flex;align-items:center;gap:12px;font-size:16.5px;font-weight:700;color:var(--brand-deep)}
    .entry-row__name i{color:var(--brand-mid)}
    .entry-row__desc{font-size:15px;color:var(--ink-2);line-height:1.8}
    @media (max-width:900px){
      .entry-row{grid-template-columns:1fr;gap:12px;padding:20px}
      .entry-row__tag{justify-self:start}
    }

    /* ---------- help panel ---------- */
    .help-panel{
      display:grid;grid-template-columns:1.1fr .9fr;gap:40px;
      background:#fff;border:1px solid var(--line);border-radius:18px;
      padding:40px;
      box-shadow:var(--shadow-sm);
    }
    .help-panel__list{margin-top:20px;display:grid;gap:14px}
    .help-panel__list li{display:flex;gap:12px;font-size:15px;color:var(--ink-2);line-height:1.8}
    .help-panel__list i{color:var(--brand-mid);margin-top:6px}
    .help-side{
      background:var(--brand-light);
      border-radius:14px;
      padding:26px;
      display:flex;flex-direction:column;justify-content:center;gap:14px;
    }
    .help-side__title{font-size:18px;font-weight:700;color:var(--brand-deep)}
    .help-side__text{font-size:14.5px;color:var(--ink-2);line-height:1.8}
    @media (max-width:900px){.help-panel{grid-template-columns:1fr;padding:26px;gap:26px}}

    /* ---------- faq ---------- */
    .faq{max-width:900px;display:grid;gap:12px}
    .faq-item{
      background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
      overflow:hidden;transition:border-color .18s ease-out,box-shadow .18s ease-out;
    }
    .faq-item[open]{border-color:#CFE2D9;box-shadow:var(--shadow-sm)}
    .faq-item summary{
      list-style:none;cursor:pointer;
      display:flex;align-items:center;justify-content:space-between;gap:18px;
      min-height:56px;padding:16px 22px;
      font-size:16px;font-weight:600;color:var(--brand-deep);
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:hover{background:#FBFCFA}
    .faq-item summary .faq-icon{
      flex-shrink:0;width:26px;height:26px;border-radius:50%;
      background:var(--brand-light);color:var(--brand);
      display:grid;place-items:center;font-size:12px;
      transition:transform .2s ease-out,background-color .2s ease-out,color .2s ease-out;
    }
    .faq-item[open] summary .faq-icon{transform:rotate(45deg);background:var(--accent);color:#fff}
    .faq-body{padding:0 22px 20px;font-size:15px;color:var(--ink-2);line-height:1.9;border-top:1px solid var(--line);padding-top:16px;margin:0 0 0}

    /* ---------- cta band ---------- */
    .cta-band{
      position:relative;overflow:hidden;
      background:var(--brand-deep);
      border-radius:18px;
      padding:44px 48px;
      display:flex;align-items:center;justify-content:space-between;gap:32px;
      color:#fff;
    }
    .cta-band::before{
      content:"";position:absolute;inset:0;
      background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
      background-size:46px 46px;
      pointer-events:none;
    }
    .cta-band__content{position:relative;z-index:2;max-width:58ch}
    .cta-band__title{font-size:clamp(22px,2.6vw,28px);font-weight:800;line-height:1.35}
    .cta-band__text{margin-top:10px;font-size:15.5px;color:rgba(255,255,255,.82);line-height:1.85}
    .cta-band .btn{position:relative;z-index:2}
    @media (max-width:820px){
      .cta-band{flex-direction:column;align-items:flex-start;padding:32px 26px;gap:22px}
      .cta-band .btn{width:100%}
    }

    /* ---------- footer ---------- */
    .site-footer{background:var(--brand-deep);color:#C9D8D1;padding:64px 0 28px;margin-top:88px}
    @media (max-width:768px){.site-footer{margin-top:56px;padding:48px 0 24px}}
    .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
    @media (max-width:1000px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}
    @media (max-width:560px){.footer-grid{grid-template-columns:1fr;gap:28px}}
    .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
    .footer-brand-name{font-size:16px;font-weight:800;color:#fff}
    .footer-about{font-size:14px;line-height:1.9;color:#C9D8D1;max-width:38ch}
    .footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
    .footer-links li{margin-bottom:10px}
    .footer-links a{font-size:14px;color:#C9D8D1;transition:color .18s ease-out}
    .footer-links a:hover{color:var(--accent-hi)}
    .footer-contact li{display:flex;gap:10px;font-size:14px;margin-bottom:12px;align-items:flex-start;line-height:1.7}
    .footer-contact i{color:var(--brand-mid);margin-top:5px;filter:brightness(1.6)}
    .footer-bottom{
      margin-top:44px;padding-top:20px;
      border-top:1px solid rgba(255,255,255,.12);
      display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
      font-size:13px;color:#9FB8AE;
    }
    .to-top{
      display:inline-flex;align-items:center;gap:8px;
      padding:8px 16px;border-radius:999px;
      border:1px solid rgba(255,255,255,.2);
      color:#C9D8D1;font-size:13px;
      transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out;
    }
    .to-top:hover{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.4)}

    /* ---------- responsive nav ---------- */
    @media (max-width:1080px){
      .nav-links{gap:18px}
      .nav-link{font-size:14px}
    }
    @media (max-width:940px){
      .nav-links{display:none}
      .nav-toggle{display:grid}
      .nav-right .nav-icon-btn{display:none}
      .nav-right .btn-primary{display:none}
    }
    @media (min-width:941px){
      .mobile-drawer{display:none !important}
    }
    @media (max-width:520px){
      .logo-sub{display:none}
      .logo-name{font-size:15px}
      .page-hero__inner{padding:32px 0 44px}
      .step{grid-template-columns:44px 1fr;gap:16px}
      .step__num{width:44px;height:44px;font-size:15px}
      .step::before{left:21px;top:48px}
      .step__card{padding:18px 18px}
    }

/* roulang page: article */
:root {
      --brand: #0E4A33;
      --brand-dark: #072A20;
      --brand-mid: #17795A;
      --brand-soft: #E4F2EC;
      --accent: #E4550A;
      --accent-light: #FF7A1A;
      --accent-soft: #FFF1E8;
      --gold: #F2B01E;
      --ink: #14201B;
      --muted: #4E5F58;
      --meta: #7E8D86;
      --ok: #1F8A5B;
      --warn: #C97A08;
      --err: #C0392B;
      --bg: #F6F7F4;
      --card: #FFFFFF;
      --line: #E3E8E4;
      --r-card: 14px;
      --r-btn: 10px;
      --r-img: 12px;
      --sh-card: 0 1px 2px rgba(7, 42, 32, .06);
      --sh-lift: 0 10px 28px -14px rgba(7, 42, 32, .22);
      --ease: cubic-bezier(.4, 0, .2, 1);
    }

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

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

    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
      font-size: 16px;
      line-height: 1.85;
      color: var(--ink);
      background: var(--bg);
      font-variant-numeric: tabular-nums;
    }

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

    a:focus-visible,
    button:focus-visible {
      outline: 2px solid var(--accent-light);
      outline-offset: 2px;
      border-radius: 6px;
    }

    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 16px;
    }

    @media (min-width: 768px) { .container { padding: 0 24px; } }
    @media (min-width: 1024px) { .container { padding: 0 32px; } }

    /* ============ 顶部活动条 ============ */
    .topbar { background: var(--brand-dark); color: #C9D8D1; font-size: 13px; }
    .topbar-inner { display: flex; align-items: center; gap: 14px; min-height: 38px; padding-top: 6px; padding-bottom: 6px; }
    .topbar-badge {
      display: inline-flex; align-items: center; gap: 6px; flex: none;
      background: rgba(255, 122, 26, .16);
      border: 1px solid rgba(255, 122, 26, .35);
      color: #FFB27A;
      border-radius: 999px;
      padding: 3px 11px;
      font-size: 12.5px;
      line-height: 1.5;
    }
    .topbar-text { color: #C9D8D1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
    .topbar-link { margin-left: auto; flex: none; color: #FFB27A; font-size: 12.5px; }
    .topbar-link:hover { color: #FFFFFF; }

    @media (max-width: 767px) { .topbar-text { display: none; } }

    /* ============ 导航 ============ */
    .site-header {
      position: sticky; top: 0; z-index: 60;
      background: #FFFFFF;
      border-bottom: 1px solid var(--line);
      transition: box-shadow .2s var(--ease);
    }
    .site-header.is-stuck { box-shadow: 0 8px 22px -16px rgba(7, 42, 32, .45); }

    .nav-inner { display: flex; align-items: center; gap: 18px; height: 68px; }

    .logo { display: flex; align-items: center; gap: 11px; flex: none; }
    .logo-mark {
      width: 40px; height: 40px; border-radius: 12px;
      background: var(--brand); color: #FFFFFF;
      display: grid; place-items: center;
      font-weight: 800; font-size: 15px; letter-spacing: 1px;
    }
    .logo-text { display: flex; flex-direction: column; line-height: 1.25; }
    .logo-name { font-size: 17px; font-weight: 800; color: var(--brand-dark); }
    .logo-sub { font-size: 11.5px; color: var(--meta); letter-spacing: .06em; }

    .nav-links { display: flex; align-items: center; gap: 2px; margin-left: auto; }
    .nav-link {
      position: relative;
      padding: 10px 12px;
      font-size: 15px;
      letter-spacing: .02em;
      color: var(--muted);
      border-radius: 8px;
      transition: color .18s var(--ease), background .18s var(--ease);
    }
    .nav-link:hover { color: var(--brand); 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: 3px;
      height: 2px; border-radius: 2px; background: var(--accent);
    }

    .nav-right { display: flex; align-items: center; gap: 10px; margin-left: auto; }

    .btn {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      border: 1.5px solid transparent;
      border-radius: var(--r-btn);
      padding: 12px 22px;
      font-size: 16px; font-weight: 700;
      line-height: 1.3;
      transition: transform .18s var(--ease), background .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease), box-shadow .18s var(--ease);
    }
    .btn:active { transform: translateY(1px); }
    .btn-primary { background: var(--accent); color: #FFFFFF; }
    .btn-primary:hover { background: #C94A08; transform: translateY(-1px); box-shadow: 0 8px 20px -10px rgba(228, 85, 10, .6); }
    .btn-outline { background: #FFFFFF; border-color: var(--brand); color: var(--brand); }
    .btn-outline:hover { background: var(--brand-soft); transform: translateY(-1px); }
    .btn-ghost { background: rgba(255, 255, 255, .08); border-color: rgba(255, 255, 255, .32); color: #FFFFFF; }
    .btn-ghost:hover { background: rgba(255, 255, 255, .18); transform: translateY(-1px); }
    .btn-sm { padding: 9px 16px; font-size: 14.5px; }
    .btn-block { width: 100%; }

    .nav-icon-btn {
      width: 40px; height: 40px; border-radius: 50%;
      display: inline-flex; align-items: center; justify-content: center;
      background: var(--brand-soft); color: var(--brand);
      font-size: 16px;
      transition: background .18s var(--ease), color .18s var(--ease);
    }
    .nav-icon-btn:hover { background: var(--brand); color: #FFFFFF; }

    .nav-toggle {
      display: none;
      width: 40px; height: 40px;
      align-items: center; justify-content: center;
      border: 1px solid var(--line); border-radius: var(--r-btn);
      background: #FFFFFF; color: var(--brand); font-size: 16px;
    }
    .nav-toggle:hover { background: var(--brand-soft); }

    .mobile-drawer {
      display: none;
      flex-direction: column; gap: 4px;
      padding: 12px 16px 20px;
      background: #FFFFFF;
      border-top: 1px solid var(--line);
    }
    .mobile-drawer.is-open { display: flex; }
    .mobile-link { padding: 12px 10px; border-radius: 10px; color: var(--muted); font-size: 15px; }
    .mobile-link:hover { background: var(--brand-soft); color: var(--brand); }
    .mobile-link.is-active { background: var(--brand-soft); color: var(--brand); font-weight: 600; }

    @media (max-width: 1024px) {
      .nav-links { display: none; }
      .nav-toggle { display: inline-flex; }
      .nav-right .nav-icon-btn { display: none; }
      .nav-right { margin-left: auto; }
    }
    @media (min-width: 1025px) { .mobile-drawer { display: none !important; } }
    @media (max-width: 480px) { .logo-sub { display: none; } .logo-name { font-size: 15.5px; } }

    /* ============ 面包屑 ============ */
    .breadcrumb {
      display: flex; flex-wrap: wrap; align-items: center; gap: 6px;
      padding: 22px 0 0;
      font-size: 13px;
      color: var(--meta);
    }
    .breadcrumb a:hover { color: var(--brand); }
    .breadcrumb .sep { color: #C3CFC8; }
    .breadcrumb .current { color: var(--brand); font-weight: 600; }

    /* ============ 文章布局 ============ */
    .article-layout {
      display: grid;
      grid-template-columns: minmax(0, 1fr);
      gap: 44px;
      padding: 18px 0 88px;
    }
    @media (min-width: 1024px) {
      .article-layout { grid-template-columns: minmax(0, 1fr) 336px; gap: 56px; }
    }

    .article-main { min-width: 0; max-width: 760px; }

    .article-header h1 {
      font-size: clamp(28px, 4vw, 40px);
      font-weight: 800;
      line-height: 1.25;
      color: var(--brand-dark);
      letter-spacing: -.01em;
    }

    .article-meta {
      display: flex; flex-wrap: wrap; align-items: center; gap: 10px 16px;
      margin-top: 16px;
      font-size: 13.5px;
      color: var(--meta);
    }
    .article-meta .meta-item { display: inline-flex; align-items: center; gap: 7px; }

    .tag {
      display: inline-flex; align-items: center;
      padding: 3px 11px;
      border-radius: 999px;
      font-size: 12.5px;
      line-height: 1.7;
    }
    .tag-brand { background: var(--brand-soft); color: var(--brand); }
    .tag-accent { background: var(--accent-soft); color: #B93F05; }
    .tag-gold { background: #FDF3D8; color: #96690A; }

    .article-cover {
      margin-top: 26px;
      width: 100%;
      aspect-ratio: 16 / 9;
      object-fit: cover;
      border-radius: var(--r-img);
      border: 1px solid var(--line);
    }

    .article-body {
      margin-top: 30px;
      font-size: 16px;
      line-height: 1.85;
      color: #1E2B25;
      overflow-wrap: break-word;
    }
    .article-body p { margin: 0 0 1.1em; }
    .article-body h2 {
      position: relative;
      margin: 44px 0 18px;
      padding-left: 16px;
      font-size: clamp(22px, 3vw, 28px);
      font-weight: 700;
      line-height: 1.35;
      color: var(--brand-dark);
    }
    .article-body h2::before {
      content: ""; position: absolute; left: 0; top: .28em;
      width: 4px; height: 20px; border-radius: 2px; background: var(--brand);
    }
    .article-body h3 { margin: 32px 0 14px; font-size: 21px; font-weight: 600; line-height: 1.45; }
    .article-body h4 { margin: 26px 0 12px; font-size: 18px; font-weight: 600; }

    .article-body ul { margin: 0 0 1.2em; }
    .article-body ul > li { position: relative; padding-left: 22px; margin-bottom: 8px; }
    .article-body ul > li::before {
      content: ""; position: absolute; left: 6px; top: .74em;
      width: 7px; height: 7px; border-radius: 50%; background: var(--brand-mid);
    }
    .article-body ol { margin: 0 0 1.2em; padding-left: 24px; list-style: decimal; }
    .article-body ol > li { margin-bottom: 8px; padding-left: 4px; }
    .article-body ol > li::marker { color: var(--brand); font-weight: 700; }

    .article-body blockquote {
      margin: 24px 0;
      padding: 16px 20px;
      background: var(--brand-soft);
      border-left: 3px solid var(--brand);
      border-radius: 8px;
      color: var(--muted);
    }
    .article-body blockquote p:last-child { margin-bottom: 0; }

    .article-body a { color: var(--brand-mid); text-decoration: underline; text-underline-offset: 3px; }
    .article-body a:hover { color: var(--accent); }

    .article-body img { border-radius: var(--r-img); margin: 24px auto; }

    .article-body table {
      width: 100%;
      margin: 26px 0;
      border-collapse: collapse;
      font-size: 15px;
      background: #FFFFFF;
      border-radius: var(--r-img);
      overflow: hidden;
    }
    .article-body th { background: var(--brand); color: #FFFFFF; font-weight: 600; text-align: left; padding: 12px 14px; }
    .article-body td { padding: 12px 14px; border-bottom: 1px solid var(--line); }
    .article-body tr:nth-child(even) td { background: #F8FAF9; }
    .article-body hr { margin: 36px 0; border: 0; border-top: 1px solid var(--line); }
    .article-body code { background: var(--brand-soft); color: var(--brand-dark); padding: 2px 6px; border-radius: 6px; font-size: 14.5px; }

    @media (max-width: 767px) {
      .article-body table { font-size: 14px; }
      .article-body th, .article-body td { padding: 10px; }
    }

    .empty-state {
      margin-top: 30px;
      padding: 56px 24px;
      background: var(--card);
      border: 1px solid var(--line);
      border-radius: var(--r-card);
      text-align: center;
      box-shadow: var(--sh-card);
    }
    .empty-state i { font-size: 34px; color: var(--brand-mid); }
    .empty-state h2 { margin: 18px 0 10px; font-size: 22px; font-weight: 700; color: var(--brand-dark); }
    .empty-state p { margin: 0 auto 22px; max-width: 420px; font-size: 15px; color: var(--muted); }

    /* ============ 文末工具区 ============ */
    .article-foot {
      margin-top: 44px;
      padding-top: 26px;
      border-top: 1px solid var(--line);
    }
    .foot-label { font-size: 13.5px; color: var(--meta); margin-bottom: 12px; }
    .tag-group { display: flex; flex-wrap: wrap; gap: 8px; }
    .foot-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }

    /* ============ 侧栏 ============ */
    .article-side { display: none; }
    @media (min-width: 1024px) { .article-side { display: block; } }

    .side-inner { position: sticky; top: 100px; display: flex; flex-direction: column; gap: 20px; }

    .side-card {
      background: var(--card);
      border: 1px solid var(--line);
      border-radius: var(--r-card);
      padding: 20px;
      box-shadow: var(--sh-card);
    }
    .side-title {
      display: flex; align-items: center; gap: 8px;
      font-size: 15px; font-weight: 700; color: var(--brand-dark);
      margin-bottom: 14px;
    }
    .side-title i { color: var(--brand-mid); }

    .toc-list { display: flex; flex-direction: column; gap: 2px; }
    .toc-link {
      display: block;
      padding: 8px 10px;
      border-left: 2px solid var(--line);
      font-size: 14px;
      line-height: 1.6;
      color: var(--muted);
      transition: all .18s var(--ease);
    }
    .toc-link:hover { color: var(--brand); background: var(--brand-soft); }
    .toc-link.is-active { border-left-color: var(--accent); color: var(--brand); font-weight: 600; background: var(--brand-soft); }

    .side-list li + li { margin-top: 14px; }
    .side-list a { display: block; font-size: 14.5px; line-height: 1.65; color: var(--muted); transition: color .18s var(--ease); }
    .side-list a:hover { color: var(--accent); }
    .side-list .side-date { display: block; margin-top: 4px; font-size: 12.5px; color: var(--meta); }

    .side-cta { background: var(--brand-soft); border-color: #CFE6DC; }
    .side-cta h3 { font-size: 17px; font-weight: 700; color: var(--brand-dark); line-height: 1.45; }
    .side-cta p { margin: 10px 0 18px; font-size: 14px; line-height: 1.8; color: var(--muted); }

    /* ============ 相关推荐 ============ */
    .section { padding: 0 0 88px; }
    .section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 26px; }
    .section-title { font-size: 26px; font-weight: 700; line-height: 1.35; color: var(--brand-dark); }
    .section-sub { margin-top: 8px; font-size: 15px; color: var(--muted); }
    .section-more { flex: none; font-size: 14.5px; color: var(--brand-mid); display: inline-flex; align-items: center; gap: 7px; }
    .section-more:hover { color: var(--accent); }

    .card-grid { display: grid; grid-template-columns: 1fr; gap: 22px; }
    @media (min-width: 640px) { .card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
    @media (min-width: 1024px) { .card-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }

    .card {
      display: flex; flex-direction: column;
      background: var(--card);
      border: 1px solid var(--line);
      border-radius: var(--r-card);
      overflow: hidden;
      box-shadow: var(--sh-card);
      transition: transform .18s var(--ease), box-shadow .18s var(--ease), border-color .18s var(--ease);
    }
    .card:hover { transform: translateY(-2px); box-shadow: var(--sh-lift); border-color: #CFE6DC; }
    .card-media { aspect-ratio: 16 / 10; background: var(--brand-soft); overflow: hidden; }
    .card-media img { width: 100%; height: 100%; object-fit: cover; }
    .card-body { padding: 20px; display: flex; flex-direction: column; flex: 1; }
    .card-title { font-size: 17.5px; font-weight: 600; line-height: 1.5; color: var(--brand-dark); }
    .card-text {
      margin-top: 10px;
      font-size: 14.5px;
      line-height: 1.8;
      color: var(--muted);
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    .card-meta { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--line); font-size: 13px; color: var(--meta); }
    .card-link { color: var(--brand-mid); font-weight: 600; }
    .card-link:hover { color: var(--accent); }

    /* ============ 通栏 CTA ============ */
    .cta-band {
      position: relative;
      background: linear-gradient(120deg, var(--brand-dark) 0%, var(--brand) 100%);
      border-radius: 18px;
      padding: 40px 28px;
      overflow: hidden;
      color: #FFFFFF;
    }
    .cta-band::after {
      content: "";
      position: absolute; inset: 0;
      background-image: linear-gradient(rgba(255,255,255,.07) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.07) 1px, transparent 1px);
      background-size: 42px 42px;
      pointer-events: none;
    }
    .cta-inner { position: relative; z-index: 1; display: flex; flex-direction: column; gap: 24px; }
    .cta-band h2 { font-size: clamp(22px, 3vw, 28px); font-weight: 800; line-height: 1.35; }
    .cta-band p { margin-top: 12px; max-width: 620px; font-size: 15px; line-height: 1.85; color: #C9D8D1; }
    .cta-actions { display: flex; flex-wrap: wrap; gap: 12px; }

    @media (min-width: 900px) {
      .cta-band { padding: 48px 48px; }
      .cta-inner { flex-direction: row; align-items: center; justify-content: space-between; }
    }

    /* ============ 页脚 ============ */
    .site-footer { background: var(--brand-dark); color: #C9D8D1; padding: 64px 0 0; }
    .footer-grid { display: grid; grid-template-columns: 1fr; gap: 36px; padding-bottom: 46px; }
    @media (min-width: 768px) { .footer-grid { grid-template-columns: 1.5fr 1fr 1fr 1.1fr; gap: 30px; } }

    .footer-brand { display: flex; align-items: center; gap: 11px; margin-bottom: 16px; }
    .site-footer .logo-mark { background: var(--brand-mid); }
    .footer-brand-name { color: #FFFFFF; font-size: 16px; font-weight: 700; }
    .footer-about { font-size: 14px; line-height: 1.9; color: #A9BDB4; max-width: 340px; }
    .footer-title { color: #FFFFFF; font-size: 15px; font-weight: 600; margin-bottom: 16px; }
    .footer-links li + li { margin-top: 10px; }
    .footer-links a { font-size: 14px; color: #C9D8D1; transition: color .18s var(--ease); }
    .footer-links a:hover { color: var(--accent-light); }
    .footer-contact li { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; color: #C9D8D1; }
    .footer-contact li + li { margin-top: 12px; }
    .footer-contact i { margin-top: 5px; color: var(--brand-mid); }

    .footer-bottom {
      display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px;
      padding: 20px 0 26px;
      border-top: 1px solid rgba(255, 255, 255, .1);
      font-size: 13.5px;
      color: #8FA79D;
    }
    .to-top {
      display: inline-flex; align-items: center; gap: 8px;
      padding: 8px 16px;
      border-radius: 999px;
      border: 1px solid rgba(255, 255, 255, .16);
      background: rgba(255, 255, 255, .06);
      color: #C9D8D1;
      font-size: 13.5px;
      transition: all .18s var(--ease);
    }
    .to-top:hover { background: rgba(255, 122, 26, .16); border-color: rgba(255, 122, 26, .5); color: #FFB27A; }

    @media (max-width: 767px) {
      .article-layout { padding-bottom: 64px; }
      .section { padding-bottom: 64px; }
      .cta-band { padding: 32px 20px; }
    }

/* roulang page: category3 */
:root {
      --brand: #0E4A33;
      --brand-deep: #072A20;
      --brand-mid: #17795A;
      --brand-soft: #E4F2EC;
      --accent: #E4550A;
      --accent-light: #FF7A1A;
      --accent-soft: #FFF1E8;
      --gold: #F2B01E;
      --bg: #F6F7F4;
      --card: #FFFFFF;
      --line: #E3E8E4;
      --ink: #14201B;
      --ink-2: #4E5F58;
      --ink-3: #7E8D86;
      --ok: #1F8A5B;
      --warn: #C97A08;
      --err: #C0392B;
      --radius-card: 14px;
      --radius-btn: 10px;
      --radius-img: 12px;
      --shadow-1: 0 1px 2px rgba(7, 42, 32, .06);
      --shadow-2: 0 10px 28px -14px rgba(7, 42, 32, .22);
      --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: var(--font);
      font-size: 16px;
      line-height: 1.85;
      color: var(--ink);
      background: var(--bg);
      -webkit-font-smoothing: antialiased;
      font-variant-numeric: tabular-nums;
    }

    img {
      max-width: 100%;
      display: block;
      border-radius: var(--radius-img);
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color .18s ease-out, background-color .18s ease-out, border-color .18s ease-out;
    }

    ul, ol {
      margin: 0;
      padding: 0;
      list-style: none;
    }

    p {
      margin: 0 0 1.1em;
    }

    h1, h2, h3, h4 {
      margin: 0;
      line-height: 1.35;
      letter-spacing: .01em;
    }

    button {
      font-family: inherit;
    }

    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    select:focus-visible,
    textarea:focus-visible {
      outline: 2px solid var(--accent-light);
      outline-offset: 2px;
      border-radius: 6px;
    }

    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 32px;
    }

    /* ---------- 顶部活动条 ---------- */
    .announce {
      background: var(--brand-deep);
      color: #C9D8D1;
      font-size: 13px;
    }

    .announce .container {
      min-height: 40px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
    }

    .announce-left {
      display: flex;
      align-items: center;
      gap: 12px;
      min-width: 0;
    }

    .pill-live {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 3px 12px;
      border-radius: 999px;
      background: var(--accent);
      color: #fff;
      font-size: 12px;
      font-weight: 600;
      white-space: nowrap;
    }

    .pill-live .dot {
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: #FFD9BF;
    }

    .announce-text {
      color: #B9CCC4;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .announce-right {
      display: flex;
      align-items: center;
      gap: 16px;
      white-space: nowrap;
    }

    .announce-right a:hover {
      color: var(--accent-light);
    }

    /* ---------- 导航 ---------- */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 60;
      background: #fff;
      border-bottom: 1px solid var(--line);
      transition: box-shadow .2s ease-out;
    }

    .site-header.is-stuck {
      box-shadow: 0 6px 20px -14px rgba(7, 42, 32, .5);
    }

    .nav-inner {
      height: 68px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }

    .logo-mark {
      width: 40px;
      height: 40px;
      border-radius: 11px;
      background: var(--brand);
      color: #fff;
      font-size: 15px;
      font-weight: 800;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      letter-spacing: .04em;
      flex-shrink: 0;
    }

    .logo-text {
      display: flex;
      flex-direction: column;
      line-height: 1.2;
    }

    .logo-name {
      font-size: 15px;
      font-weight: 700;
      color: var(--ink);
    }

    .logo-sub {
      font-size: 11px;
      color: var(--ink-3);
      letter-spacing: .06em;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 2px;
      margin-left: 20px;
    }

    .nav-link {
      position: relative;
      padding: 8px 13px;
      font-size: 15px;
      letter-spacing: .02em;
      color: var(--ink-2);
      border-radius: 8px;
      white-space: nowrap;
    }

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

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

    .nav-link.is-active::after {
      content: "";
      position: absolute;
      left: 13px;
      right: 13px;
      bottom: 2px;
      height: 2px;
      border-radius: 2px;
      background: var(--accent);
    }

    .nav-right {
      margin-left: auto;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .nav-icon-btn {
      width: 40px;
      height: 40px;
      border-radius: 10px;
      border: 1.5px solid var(--line);
      color: var(--brand);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 16px;
      background: #fff;
    }

    .nav-icon-btn:hover {
      background: var(--brand-soft);
      border-color: var(--brand-mid);
    }

    .nav-toggle {
      display: none;
      width: 40px;
      height: 40px;
      border-radius: 10px;
      border: 1.5px solid var(--line);
      background: #fff;
      color: var(--brand);
      font-size: 17px;
      cursor: pointer;
    }

    .nav-toggle:hover {
      background: var(--brand-soft);
    }

    .mobile-drawer {
      display: none;
      border-top: 1px solid var(--line);
      background: #fff;
      padding: 12px 16px 20px;
    }

    .mobile-drawer.is-open {
      display: block;
    }

    .mobile-link {
      display: block;
      padding: 13px 14px;
      border-radius: 10px;
      font-size: 15px;
      color: var(--ink-2);
    }

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

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

    /* ---------- 按钮 ---------- */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      height: 44px;
      padding: 0 20px;
      border-radius: var(--radius-btn);
      border: 1.5px solid transparent;
      font-size: 16px;
      font-weight: 600;
      letter-spacing: .02em;
      cursor: pointer;
      transition: transform .18s ease-out, background-color .18s ease-out, color .18s ease-out, border-color .18s ease-out, box-shadow .18s ease-out;
    }

    .btn-primary {
      background: var(--accent);
      color: #fff;
      box-shadow: 0 6px 16px -10px rgba(228, 85, 10, .9);
    }

    .btn-primary:hover {
      background: var(--accent-light);
      transform: translateY(-1px);
    }

    .btn-primary:active {
      transform: translateY(0);
    }

    .btn-outline {
      background: #fff;
      border-color: var(--brand);
      color: var(--brand);
    }

    .btn-outline:hover {
      background: var(--brand-soft);
      transform: translateY(-1px);
    }

    .btn-ghost {
      background: transparent;
      border-color: rgba(255, 255, 255, .3);
      color: #fff;
    }

    .btn-ghost:hover {
      background: rgba(255, 255, 255, .1);
      border-color: rgba(255, 255, 255, .6);
      transform: translateY(-1px);
    }

    .btn-sm {
      height: 38px;
      padding: 0 16px;
      font-size: 14px;
      border-radius: 9px;
    }

    .btn-block {
      width: 100%;
    }

    .btn:disabled {
      opacity: .5;
      cursor: not-allowed;
      transform: none;
    }

    /* ---------- 内页 Hero ---------- */
    .page-hero {
      position: relative;
      background: linear-gradient(115deg, #072A20 0%, #0E4A33 62%, #13593E 100%);
      color: #fff;
      padding: 40px 0 56px;
      overflow: hidden;
    }

    .page-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image: url("/assets/images/backpic/back-2.webp");
      background-size: cover;
      background-position: center;
      opacity: .18;
    }

    .page-hero::after {
      content: "";
      position: absolute;
      inset: 0;
      background-image: linear-gradient(rgba(255, 255, 255, .07) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .07) 1px, transparent 1px);
      background-size: 48px 48px;
    }

    .page-hero .container {
      position: relative;
      z-index: 2;
    }

    .breadcrumb {
      font-size: 13px;
      color: #9DB6AC;
      display: flex;
      align-items: center;
      gap: 8px;
      flex-wrap: wrap;
      margin-bottom: 18px;
    }

    .breadcrumb a:hover {
      color: var(--accent-light);
    }

    .breadcrumb .sep {
      color: #6E8A7F;
    }

    .breadcrumb .current {
      color: #fff;
      font-weight: 600;
    }

    .hero-head {
      display: grid;
      grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
      gap: 48px;
      align-items: center;
    }

    .page-hero h1 {
      font-size: clamp(26px, 3.4vw, 40px);
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 14px;
    }

    .hero-sub {
      font-size: 16px;
      color: #C9D8D1;
      max-width: 620px;
      margin-bottom: 26px;
    }

    .hero-actions {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
      margin-bottom: 22px;
    }

    .hero-badges {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 5px 13px;
      border-radius: 999px;
      background: rgba(255, 255, 255, .1);
      border: 1px solid rgba(255, 255, 255, .16);
      font-size: 13px;
      color: #DCEAE4;
    }

    .hero-badge i {
      color: var(--accent-light);
    }

    .hero-visual {
      position: relative;
    }

    .hero-visual img {
      width: 100%;
      aspect-ratio: 4 / 3;
      object-fit: cover;
      border-radius: 16px;
      border: 1px solid rgba(255, 255, 255, .14);
    }

    .float-card {
      position: absolute;
      left: -14px;
      bottom: 22px;
      background: #fff;
      color: var(--ink);
      border-radius: 12px;
      padding: 12px 16px;
      box-shadow: 0 14px 32px -18px rgba(0, 0, 0, .55);
      max-width: 220px;
    }

    .float-card .fc-title {
      font-size: 13px;
      font-weight: 700;
      color: var(--brand);
    }

    .float-card .fc-text {
      font-size: 12px;
      color: var(--ink-3);
      line-height: 1.6;
    }

    /* ---------- 通用板块 ---------- */
    .section {
      padding: 88px 0;
    }

    .section-tight {
      padding: 64px 0;
    }

    .section-soft {
      background: var(--brand-soft);
    }

    .section-white {
      background: #fff;
    }

    .section-head {
      margin-bottom: 44px;
      max-width: 760px;
    }

    .section-head h2 {
      font-size: clamp(24px, 2.6vw, 30px);
      font-weight: 700;
      padding-left: 14px;
      position: relative;
      margin-bottom: 12px;
    }

    .section-head h2::before {
      content: "";
      position: absolute;
      left: 0;
      top: .22em;
      width: 4px;
      height: 20px;
      border-radius: 2px;
      background: var(--brand);
    }

    .section-head p {
      color: var(--ink-2);
      margin-bottom: 0;
      max-width: 42em;
    }

    .eyebrow {
      display: inline-block;
      font-size: 13px;
      font-weight: 600;
      letter-spacing: .12em;
      color: var(--brand-mid);
      margin-bottom: 10px;
    }

    /* ---------- 图文交替 ---------- */
    .feature-row {
      display: grid;
      grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
      gap: 56px;
      align-items: center;
      padding: 34px 0;
    }

    .feature-row.reverse .feature-media {
      order: 2;
    }

    .feature-row h3 {
      font-size: 21px;
      font-weight: 700;
      margin-bottom: 14px;
    }

    .feature-row p {
      color: var(--ink-2);
      font-size: 16px;
    }

    .feature-media img {
      width: 100%;
      aspect-ratio: 16 / 10;
      object-fit: cover;
      border: 1px solid var(--line);
      box-shadow: var(--shadow-1);
    }

    .tag-row {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 18px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 12px;
      border-radius: 999px;
      background: var(--brand-soft);
      color: var(--brand);
      font-size: 13px;
    }

    .tag-accent {
      background: var(--accent-soft);
      color: #A83C05;
    }

    .tag-gold {
      background: #FDF3DA;
      color: #8A6205;
    }

    .divider-line {
      height: 1px;
      background: var(--line);
      border: 0;
      margin: 0;
    }

    /* ---------- 规格表 ---------- */
    .table-scroll {
      overflow-x: auto;
      border-radius: var(--radius-card);
      border: 1px solid var(--line);
      background: #fff;
      box-shadow: var(--shadow-1);
    }

    .spec-table {
      width: 100%;
      min-width: 660px;
      border-collapse: collapse;
      font-size: 14px;
    }

    .spec-table thead th {
      background: var(--brand);
      color: #fff;
      text-align: left;
      font-weight: 600;
      padding: 14px 20px;
      white-space: nowrap;
    }

    .spec-table td {
      padding: 14px 20px;
      border-top: 1px solid var(--line);
      color: var(--ink-2);
      vertical-align: top;
    }

    .spec-table tbody tr:nth-child(even) {
      background: #F6F7F4;
    }

    .spec-table td:first-child {
      color: var(--ink);
      font-weight: 600;
      white-space: nowrap;
    }

    .spec-note {
      font-size: 13px;
      color: var(--ink-3);
      margin-top: 14px;
    }

    /* ---------- 徽章组 ---------- */
    .badge-panel {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius-card);
      padding: 28px;
      box-shadow: var(--shadow-1);
    }

    .badge-group {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      padding: 8px 15px;
      border-radius: 999px;
      border: 1px solid var(--line);
      background: #F9FBF9;
      font-size: 13px;
      color: var(--ink-2);
    }

    .badge i {
      font-size: 12px;
      color: var(--ok);
    }

    .badge.is-pending i {
      color: var(--warn);
    }

    /* ---------- 浅绿提示卡 ---------- */
    .notice-card {
      background: var(--brand-soft);
      border-radius: var(--radius-card);
      padding: 24px 26px;
      border: 1px solid #CFE6DC;
    }

    .notice-card .nc-title {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .notice-card .nc-title i {
      color: var(--brand-mid);
    }

    .notice-list li {
      display: flex;
      gap: 10px;
      font-size: 15px;
      color: var(--ink-2);
      padding: 6px 0;
    }

    .notice-list li i {
      color: var(--brand-mid);
      margin-top: 6px;
      font-size: 13px;
    }

    /* ---------- FAQ ---------- */
    .faq-list {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius-card);
      overflow: hidden;
      box-shadow: var(--shadow-1);
    }

    .faq-item + .faq-item {
      border-top: 1px solid var(--line);
    }

    .faq-q {
      width: 100%;
      min-height: 56px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 16px 22px;
      background: transparent;
      border: 0;
      text-align: left;
      font-size: 16px;
      font-weight: 600;
      color: var(--ink);
      cursor: pointer;
      transition: background-color .18s ease-out;
    }

    .faq-q:hover {
      background: #F9FBF9;
    }

    .faq-q .faq-icon {
      flex-shrink: 0;
      width: 26px;
      height: 26px;
      border-radius: 50%;
      background: var(--brand-soft);
      color: var(--brand);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      transition: transform .22s ease-out, background-color .18s ease-out;
    }

    .faq-item.is-open .faq-q .faq-icon {
      transform: rotate(45deg);
      background: var(--accent);
      color: #fff;
    }

    .faq-a {
      max-height: 0;
      overflow: hidden;
      transition: max-height .28s ease-out;
    }

    .faq-a-inner {
      padding: 0 22px 20px;
      font-size: 15px;
      color: var(--ink-2);
      max-width: 44em;
    }

    /* ---------- CTA 通栏 ---------- */
    .cta-band {
      position: relative;
      background: linear-gradient(120deg, #072A20 0%, #0E4A33 70%, #14573C 100%);
      color: #fff;
      padding: 56px 0;
      overflow: hidden;
    }

    .cta-band::after {
      content: "";
      position: absolute;
      inset: 0;
      background-image: radial-gradient(circle at 88% 20%, rgba(255, 122, 26, .18) 0, transparent 42%),
        linear-gradient(rgba(255, 255, 255, .06) 1px, transparent 1px);
      background-size: auto, 100% 44px;
    }

    .cta-band .container {
      position: relative;
      z-index: 2;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 28px;
      flex-wrap: wrap;
    }

    .cta-band h2 {
      font-size: clamp(22px, 2.4vw, 28px);
      font-weight: 700;
      margin-bottom: 8px;
    }

    .cta-band p {
      color: #C9D8D1;
      margin-bottom: 0;
      max-width: 46em;
    }

    .cta-actions {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
    }

    /* ---------- 表单 ---------- */
    .form-card {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius-card);
      padding: 26px;
      box-shadow: var(--shadow-1);
    }

    .form-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 18px;
    }

    .field {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .field-full {
      grid-column: 1 / -1;
    }

    .field label {
      font-size: 14px;
      color: var(--ink-2);
    }

    .field .req {
      color: var(--err);
      margin-left: 2px;
    }

    .field input,
    .field select,
    .field textarea {
      height: 44px;
      padding: 0 14px;
      border: 1.5px solid var(--line);
      border-radius: var(--radius-btn);
      font-size: 15px;
      color: var(--ink);
      background: #fff;
      font-family: inherit;
      transition: border-color .18s ease-out, box-shadow .18s ease-out;
    }

    .field textarea {
      height: auto;
      min-height: 104px;
      padding: 12px 14px;
      line-height: 1.7;
      resize: vertical;
    }

    .field input:focus,
    .field select:focus,
    .field textarea:focus {
      border-color: var(--brand-mid);
      box-shadow: 0 0 0 3px rgba(23, 121, 90, .14);
      outline: none;
    }

    .check-row {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 14px;
      color: var(--ink-2);
    }

    .check-row input {
      margin-top: 5px;
      width: 16px;
      height: 16px;
      accent-color: var(--brand-mid);
    }

    .form-ok {
      display: none;
      align-items: center;
      gap: 10px;
      background: var(--brand-soft);
      border: 1px solid #CFE6DC;
      color: var(--brand);
      border-radius: var(--radius-btn);
      padding: 12px 16px;
      font-size: 14px;
      margin-bottom: 18px;
    }

    .form-ok.is-visible {
      display: flex;
    }

    /* ---------- 页脚 ---------- */
    .site-footer {
      background: var(--brand-deep);
      color: #C9D8D1;
      padding: 60px 0 24px;
      font-size: 14px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.15fr;
      gap: 40px;
      padding-bottom: 40px;
      border-bottom: 1px solid rgba(255, 255, 255, .1);
    }

    .footer-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 14px;
    }

    .footer-brand-name {
      font-size: 15px;
      font-weight: 700;
      color: #fff;
    }

    .footer-about {
      color: #9DB6AC;
      font-size: 13.5px;
      line-height: 1.9;
      margin-bottom: 0;
      max-width: 34em;
    }

    .footer-title {
      font-size: 14px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 16px;
      letter-spacing: .04em;
    }

    .footer-links li,
    .footer-contact li {
      margin-bottom: 10px;
      font-size: 14px;
      color: #C9D8D1;
    }

    .footer-links a:hover {
      color: var(--accent-light);
    }

    .footer-contact li {
      display: flex;
      align-items: flex-start;
      gap: 9px;
      color: #9DB6AC;
    }

    .footer-contact i {
      color: var(--brand-mid);
      margin-top: 6px;
      font-size: 12px;
    }

    .footer-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding-top: 20px;
      font-size: 13px;
      color: #8FA79D;
      flex-wrap: wrap;
    }

    .to-top {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      height: 36px;
      padding: 0 14px;
      border-radius: 999px;
      border: 1px solid rgba(255, 255, 255, .2);
      background: transparent;
      color: #C9D8D1;
      font-size: 13px;
      cursor: pointer;
      transition: background-color .18s ease-out, color .18s ease-out, border-color .18s ease-out;
    }

    .to-top:hover {
      background: rgba(255, 255, 255, .08);
      color: #fff;
      border-color: rgba(255, 255, 255, .45);
    }

    /* ---------- 响应式 ---------- */
    @media (max-width: 1024px) {
      .container {
        padding: 0 24px;
      }

      .nav-links {
        display: none;
      }

      .nav-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
      }

      .hero-head {
        grid-template-columns: minmax(0, 1fr);
        gap: 32px;
      }

      .hero-visual {
        order: 2;
      }

      .feature-row {
        gap: 32px;
      }

      .section {
        padding: 64px 0;
      }

      .footer-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 32px;
      }
    }

    @media (max-width: 768px) {
      .announce-text,
      .announce-right {
        display: none;
      }

      .nav-right .nav-icon-btn {
        display: none;
      }

      .logo-sub {
        display: none;
      }

      .feature-row,
      .feature-row.reverse {
        grid-template-columns: minmax(0, 1fr);
        gap: 22px;
      }

      .feature-row.reverse .feature-media {
        order: 0;
      }

      .form-grid {
        grid-template-columns: minmax(0, 1fr);
      }

      .cta-band .container {
        flex-direction: column;
        align-items: flex-start;
      }

      .cta-actions .btn {
        width: 100%;
      }
    }

    @media (max-width: 520px) {
      .container {
        padding: 0 16px;
      }

      body {
        font-size: 15.5px;
      }

      .section {
        padding: 52px 0;
      }

      .page-hero {
        padding: 28px 0 44px;
      }

      .hero-actions .btn {
        width: 100%;
      }

      .float-card {
        position: static;
        margin-top: 14px;
        max-width: none;
        box-shadow: var(--shadow-1);
      }

      .footer-grid {
        grid-template-columns: minmax(0, 1fr);
      }

      .badge-panel,
      .form-card,
      .notice-card {
        padding: 20px;
      }
    }

/* roulang page: category2 */
:root{
      --brand:#0E4A33;
      --brand-deep:#072A20;
      --brand-mid:#17795A;
      --brand-light:#E4F2EC;
      --accent:#E4550A;
      --accent-hi:#FF7A1A;
      --accent-light:#FFF1E8;
      --gold:#F2B01E;
      --bg:#F6F7F4;
      --card:#FFFFFF;
      --line:#E3E8E4;
      --ink:#14201B;
      --ink-2:#4E5F58;
      --ink-3:#7E8D86;
      --ok:#1F8A5B;
      --warn:#C97A08;
      --err:#C0392B;
      --r-lg:14px;
      --r-md:10px;
      --r-sm:8px;
      --sh-1:0 1px 2px rgba(7,42,32,.06);
      --sh-2:0 10px 28px -14px rgba(7,42,32,.22);
      --ease:cubic-bezier(.2,.7,.3,1);
    }

    *,*::before,*::after{box-sizing:border-box;}
    html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
      font-size:16px;
      line-height:1.85;
      color:var(--ink);
      background:var(--bg);
      -webkit-font-smoothing:antialiased;
    }
    img{max-width:100%;display:block;}
    a{color:inherit;}
    button{font-family:inherit;}
    h1,h2,h3,h4,p,ul,ol{margin:0;padding:0;}
    ul,ol{list-style:none;}
    .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

    .container{
      width:100%;
      max-width:1200px;
      margin:0 auto;
      padding-left:16px;
      padding-right:16px;
    }
    @media (min-width:768px){
      .container{padding-left:24px;padding-right:24px;}
    }
    @media (min-width:1024px){
      .container{padding-left:32px;padding-right:32px;}
    }

    /* ---------- 顶部活动条 ---------- */
    .topbar{
      background:var(--brand-deep);
      color:#C9D8D1;
      font-size:13px;
      min-height:38px;
      display:flex;
      align-items:center;
    }
    .topbar-inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      min-height:38px;
    }
    .topbar-left{display:flex;align-items:center;gap:12px;min-width:0;}
    .topbar-pill{
      display:inline-flex;
      align-items:center;
      gap:6px;
      background:rgba(255,122,26,.16);
      color:#FFB27A;
      border:1px solid rgba(255,122,26,.36);
      border-radius:999px;
      padding:3px 10px;
      font-size:12px;
      white-space:nowrap;
    }
    .topbar-pill .dot{
      width:6px;height:6px;border-radius:50%;background:#FF7A1A;
      animation:blink 1.8s var(--ease) infinite;
    }
    @keyframes blink{0%,100%{opacity:1;}50%{opacity:.35;}}
    .topbar-text{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
    .topbar-links{display:flex;align-items:center;gap:16px;white-space:nowrap;}
    .topbar-links a{color:#C9D8D1;text-decoration:none;transition:color .18s var(--ease);}
    .topbar-links a:hover{color:var(--accent-hi);}
    @media (max-width:640px){
      .topbar-text,.topbar-links a.topbar-help{display:none;}
    }

    /* ---------- 导航 ---------- */
    .site-header{
      position:sticky;
      top:0;
      z-index:60;
      background:#fff;
      border-bottom:1px solid var(--line);
      transition:box-shadow .2s var(--ease);
    }
    .site-header.is-stuck{box-shadow:0 8px 24px -18px rgba(7,42,32,.5);}
    .nav-inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
      min-height:68px;
    }
    .logo{
      display:flex;
      align-items:center;
      gap:10px;
      text-decoration:none;
      flex-shrink:0;
    }
    .logo-mark{
      width:40px;height:40px;
      border-radius:12px;
      background:var(--brand);
      color:#fff;
      display:grid;place-items:center;
      font-size:15px;font-weight:800;
      letter-spacing:.06em;
      flex-shrink:0;
    }
    .logo-text{display:flex;flex-direction:column;line-height:1.2;}
    .logo-name{font-size:16px;font-weight:800;color:var(--brand-deep);white-space:nowrap;}
    .logo-sub{font-size:11px;color:var(--ink-3);letter-spacing:.08em;white-space:nowrap;}
    @media (max-width:400px){
      .logo-sub{display:none;}
    }

    .nav-links{display:flex;align-items:center;gap:4px;}
    .nav-link{
      position:relative;
      display:inline-block;
      padding:8px 12px;
      font-size:15px;
      color:var(--ink-2);
      text-decoration:none;
      letter-spacing:.02em;
      border-radius:8px;
      transition:color .18s var(--ease),background .18s var(--ease);
      white-space:nowrap;
    }
    .nav-link:hover{color:var(--brand);background:var(--brand-light);}
    .nav-link.is-active{color:var(--brand);font-weight:700;}
    .nav-link.is-active::after{
      content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;
      background:var(--accent);border-radius:2px;
    }

    .nav-right{display:flex;align-items:center;gap:10px;flex-shrink:0;}
    .nav-icon-btn{
      width:38px;height:38px;border-radius:var(--r-md);
      border:1px solid var(--line);
      background:#fff;
      color:var(--brand);
      display:grid;place-items:center;
      text-decoration:none;
      transition:border-color .18s var(--ease),background .18s var(--ease),transform .18s var(--ease);
    }
    .nav-icon-btn:hover{border-color:var(--brand);background:var(--brand-light);transform:translateY(-1px);}
    .nav-toggle{
      display:none;
      width:38px;height:38px;border-radius:var(--r-md);
      border:1px solid var(--line);
      background:#fff;
      color:var(--brand);
      place-items:center;
      cursor:pointer;
      transition:border-color .18s var(--ease),background .18s var(--ease);
    }
    .nav-toggle:hover{border-color:var(--brand);background:var(--brand-light);}

    .mobile-drawer{
      display:none;
      border-top:1px solid var(--line);
      background:#fff;
      padding:12px 16px 20px;
    }
    .mobile-drawer.is-open{display:block;}
    .mobile-link{
      display:block;
      padding:12px 14px;
      border-radius:var(--r-md);
      font-size:15px;
      color:var(--ink-2);
      text-decoration:none;
      transition:background .18s var(--ease),color .18s var(--ease);
    }
    .mobile-link:hover{background:var(--brand-light);color:var(--brand);}
    .mobile-link.is-active{background:var(--brand-light);color:var(--brand);font-weight:700;}

    @media (max-width:1023px){
      .nav-links,.nav-icon-btn{display:none;}
      .nav-toggle{display:grid;}
    }
    @media (min-width:1024px){
      .mobile-drawer{display:none !important;}
    }

    /* ---------- 按钮 ---------- */
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:44px;
      padding:0 18px;
      border-radius:var(--r-md);
      border:1.5px solid transparent;
      font-size:16px;
      font-weight:700;
      text-decoration:none;
      cursor:pointer;
      transition:background .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
    }
    .btn-primary{background:var(--accent);color:#fff;border-color:var(--accent);}
    .btn-primary:hover{background:#C9480A;transform:translateY(-1px);box-shadow:0 10px 22px -12px rgba(228,85,10,.75);}
    .btn-primary:active{background:#B03F06;transform:translateY(0);}
    .btn-secondary{background:#fff;color:var(--brand);border-color:var(--brand);}
    .btn-secondary:hover{background:var(--brand-light);transform:translateY(-1px);}
    .btn-secondary:active{transform:translateY(0);}
    .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.35);}
    .btn-ghost:hover{background:rgba(255,255,255,.14);}
    .btn-sm{min-height:38px;font-size:14px;padding:0 14px;}
    .btn-block{width:100%;}
    .btn:focus-visible{outline:2px solid var(--accent-hi);outline-offset:2px;}
    .btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}

    /* ---------- 内页 Hero ---------- */
    .page-hero{
      position:relative;
      overflow:hidden;
      background:linear-gradient(135deg,#072A20 0%,#0E4A33 100%);
      color:#fff;
      padding:48px 0 78px;
    }
    .page-hero::before{
      content:"";
      position:absolute;inset:0;
      background-image:
        linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),
        linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
      background-size:46px 46px;
      pointer-events:none;
    }
    .page-hero::after{
      content:"";
      position:absolute;
      right:-120px;top:-90px;
      width:420px;height:420px;
      border-radius:50%;
      background:radial-gradient(circle,rgba(255,122,26,.22),transparent 68%);
      pointer-events:none;
    }
    .page-hero .container{position:relative;z-index:2;}
    .breadcrumb{
      display:flex;align-items:center;gap:8px;flex-wrap:wrap;
      font-size:13px;
      color:rgba(255,255,255,.68);
      margin-bottom:18px;
    }
    .breadcrumb a{color:rgba(255,255,255,.68);text-decoration:none;transition:color .18s var(--ease);}
    .breadcrumb a:hover{color:var(--accent-hi);}
    .breadcrumb .sep{opacity:.5;}
    .breadcrumb .current{color:#fff;font-weight:700;}
    .page-title{
      font-size:clamp(28px,4vw,42px);
      font-weight:800;
      line-height:1.25;
      letter-spacing:-.01em;
      margin-bottom:14px;
    }
    .hero-sub{
      max-width:760px;
      font-size:16px;
      line-height:1.85;
      color:rgba(255,255,255,.84);
    }
    .hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
    .hero-badge{
      display:inline-flex;align-items:center;gap:6px;
      border-radius:999px;
      padding:5px 12px;
      font-size:12.5px;
      color:#DCEAE4;
      background:rgba(255,255,255,.09);
      border:1px solid rgba(255,255,255,.16);
    }
    .hero-badge i{color:var(--accent-hi);}

    /* ---------- 搜索区 ---------- */
    .search-strip{
      position:relative;
      z-index:5;
      margin-top:-42px;
      padding-bottom:8px;
    }
    .search-card{
      background:#fff;
      border:1px solid var(--line);
      border-radius:16px;
      box-shadow:0 20px 44px -26px rgba(7,42,32,.45);
      padding:20px;
    }
    @media (min-width:768px){
      .search-card{padding:24px;}
    }
    .search-form{display:flex;gap:12px;flex-wrap:wrap;}
    .search-input{
      flex:1 1 260px;
      min-width:0;
      height:48px;
      border:1px solid var(--line);
      border-radius:var(--r-md);
      padding:0 16px;
      font-size:16px;
      color:var(--ink);
      background:#fff;
      transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
    }
    .search-input::placeholder{color:var(--ink-3);}
    .search-input:focus{
      outline:none;
      border-color:var(--brand-mid);
      box-shadow:0 0 0 3px rgba(23,121,90,.14);
    }
    .search-form .btn{flex:0 0 auto;}
    @media (max-width:640px){
      .search-form .btn{flex:1 1 100%;}
    }
    .search-tags{
      display:flex;align-items:center;flex-wrap:wrap;gap:8px;
      margin-top:16px;
      font-size:13px;
      color:var(--ink-3);
    }
    .search-tags a{
      display:inline-block;
      padding:5px 12px;
      border-radius:999px;
      background:var(--brand-light);
      color:var(--brand);
      text-decoration:none;
      transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
    }
    .search-tags a:hover{background:var(--brand);color:#fff;transform:translateY(-1px);}

    /* ---------- 主体双栏 ---------- */
    .section{padding:64px 0;}
    @media (min-width:1024px){
      .section{padding:88px 0;}
    }
    .section-tight{padding-top:28px;}
    .section-head{max-width:760px;margin-bottom:32px;}
    .section-title{
      position:relative;
      padding-left:16px;
      font-size:clamp(22px,2.6vw,30px);
      font-weight:700;
      line-height:1.35;
      color:var(--ink);
    }
    .section-title::before{
      content:"";
      position:absolute;left:0;top:6px;bottom:6px;
      width:4px;border-radius:2px;
      background:var(--brand);
    }
    .section-desc{margin-top:12px;font-size:15.5px;color:var(--ink-2);}

    .faq-layout{
      display:grid;
      grid-template-columns:250px 1fr;
      gap:40px;
      align-items:start;
    }
    @media (max-width:1023px){
      .faq-layout{grid-template-columns:1fr;gap:24px;}
    }

    .anchor-nav{
      position:sticky;
      top:100px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:var(--r-lg);
      padding:14px;
      box-shadow:var(--sh-1);
    }
    .anchor-nav-title{
      font-size:12.5px;
      letter-spacing:.1em;
      color:var(--ink-3);
      padding:4px 8px 10px;
    }
    .anchor-list{display:flex;flex-direction:column;gap:4px;}
    .anchor-link{
      display:block;
      padding:10px 12px;
      border-radius:var(--r-md);
      border-left:3px solid transparent;
      font-size:14.5px;
      color:var(--ink-2);
      text-decoration:none;
      transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
    }
    .anchor-link:hover{background:var(--brand-light);color:var(--brand);}
    .anchor-link.is-active{
      background:var(--brand-light);
      color:var(--brand);
      font-weight:700;
      border-left-color:var(--brand);
    }
    @media (max-width:1023px){
      .anchor-nav{position:static;padding:12px;}
      .anchor-list{flex-direction:row;gap:8px;overflow-x:auto;padding-bottom:4px;}
      .anchor-link{border-left:0;border-radius:999px;background:var(--bg);white-space:nowrap;padding:8px 14px;}
      .anchor-link.is-active{border-left:0;}
    }

    .faq-group{margin-bottom:44px;scroll-margin-top:110px;}
    .faq-group:last-child{margin-bottom:0;}
    .group-title{
      display:flex;
      align-items:center;
      gap:10px;
      font-size:20px;
      font-weight:700;
      color:var(--ink);
      margin-bottom:16px;
    }
    .group-title .group-icon{
      width:34px;height:34px;border-radius:10px;
      background:var(--brand-light);
      color:var(--brand);
      display:grid;place-items:center;
      font-size:14px;
      flex-shrink:0;
    }
    .group-count{
      font-size:12.5px;
      font-weight:600;
      color:var(--ink-3);
      background:var(--bg);
      border-radius:999px;
      padding:3px 10px;
    }

    .faq-list{
      background:#fff;
      border:1px solid var(--line);
      border-radius:var(--r-lg);
      overflow:hidden;
      box-shadow:var(--sh-1);
    }
    .faq-item + .faq-item{border-top:1px solid var(--line);}
    .faq-q{
      width:100%;
      min-height:56px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding:16px 20px;
      background:transparent;
      border:0;
      font-size:16px;
      font-weight:600;
      color:var(--ink);
      text-align:left;
      cursor:pointer;
      transition:background .18s var(--ease);
    }
    .faq-q:hover{background:var(--brand-light);}
    .faq-q:focus-visible{outline:2px solid var(--accent-hi);outline-offset:-2px;}
    .faq-q i{
      color:var(--brand-mid);
      font-size:14px;
      transition:transform .22s var(--ease),color .22s var(--ease);
      flex-shrink:0;
    }
    .faq-item.is-open .faq-q i{transform:rotate(45deg);color:var(--accent);}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
    .faq-a-inner{
      padding:0 20px 20px;
      font-size:15px;
      line-height:1.85;
      color:var(--ink-2);
    }
    .faq-a-inner p + p{margin-top:10px;}

    /* ---------- 自查清单 ---------- */
    .check-band{
      background:var(--brand-light);
      border-top:1px solid #D5E9E0;
      border-bottom:1px solid #D5E9E0;
    }
    .check-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:44px;
      align-items:center;
    }
    @media (max-width:900px){
      .check-grid{grid-template-columns:1fr;gap:28px;}
    }
    .check-figure{
      border-radius:var(--r-lg);
      overflow:hidden;
      border:1px solid #CFE6DC;
      background:#fff;
      box-shadow:var(--sh-2);
    }
    .check-figure img{
      width:100%;
      aspect-ratio:16/10;
      object-fit:cover;
    }
    .check-list{display:flex;flex-direction:column;gap:14px;margin-top:22px;}
    .check-item{
      display:flex;
      gap:12px;
      background:#fff;
      border:1px solid #D5E9E0;
      border-radius:var(--r-md);
      padding:14px 16px;
      box-shadow:var(--sh-1);
      transition:transform .18s var(--ease),box-shadow .18s var(--ease);
    }
    .check-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
    .check-item i{
      color:var(--brand-mid);
      font-size:15px;
      margin-top:5px;
      flex-shrink:0;
    }
    .check-item strong{display:block;font-size:15.5px;font-weight:700;color:var(--ink);}
    .check-item span{display:block;font-size:14px;color:var(--ink-2);line-height:1.75;margin-top:2px;}

    /* ---------- 未解决卡片 ---------- */
    .unresolved{
      background:var(--accent-light);
      border:1px solid #FBD9C3;
      border-radius:16px;
      padding:28px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
      flex-wrap:wrap;
    }
    .unresolved h3{font-size:20px;font-weight:700;color:var(--ink);}
    .unresolved p{font-size:15px;color:var(--ink-2);margin-top:8px;max-width:620px;}
    @media (max-width:640px){
      .unresolved{padding:22px;}
      .unresolved .btn{width:100%;}
    }

    /* ---------- 通栏 CTA ---------- */
    .cta-band{
      position:relative;
      overflow:hidden;
      background:linear-gradient(135deg,#072A20 0%,#0E4A33 100%);
      color:#fff;
      padding:56px 0;
    }
    .cta-band::before{
      content:"";
      position:absolute;inset:0;
      background-image:
        repeating-linear-gradient(115deg,rgba(255,255,255,.06) 0 1px,transparent 1px 22px);
      pointer-events:none;
    }
    .cta-inner{
      position:relative;
      z-index:2;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:28px;
      flex-wrap:wrap;
    }
    .cta-inner h2{font-size:clamp(22px,2.6vw,28px);font-weight:700;line-height:1.35;}
    .cta-inner p{color:rgba(255,255,255,.8);font-size:15px;margin-top:10px;max-width:640px;}
    .cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
    @media (max-width:640px){
      .cta-actions{width:100%;}
      .cta-actions .btn{width:100%;}
    }

    /* ---------- 页脚 ---------- */
    .site-footer{
      background:var(--brand-deep);
      color:#C9D8D1;
      padding:56px 0 24px;
      font-size:14.5px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.5fr 1fr 1fr 1.2fr;
      gap:36px;
    }
    @media (max-width:1023px){
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
    }
    @media (max-width:640px){
      .footer-grid{grid-template-columns:1fr;gap:26px;}
    }
    .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
    .footer-brand .logo-mark{background:rgba(255,255,255,.1);color:#fff;}
    .footer-brand-name{font-size:16px;font-weight:800;color:#fff;}
    .footer-about{font-size:14px;line-height:1.85;color:#A9BEB6;max-width:360px;}
    .footer-title{
      font-size:13px;
      letter-spacing:.1em;
      color:#fff;
      font-weight:700;
      margin-bottom:16px;
    }
    .footer-links li + li{margin-top:10px;}
    .footer-links a{
      color:#C9D8D1;
      text-decoration:none;
      transition:color .18s var(--ease);
    }
    .footer-links a:hover{color:var(--accent-hi);}
    .footer-contact li{
      display:flex;
      align-items:flex-start;
      gap:10px;
      margin-bottom:12px;
      color:#C9D8D1;
    }
    .footer-contact i{color:var(--brand-mid);margin-top:5px;}
    .footer-bottom{
      margin-top:44px;
      padding-top:20px;
      border-top:1px solid rgba(255,255,255,.12);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
      font-size:13px;
      color:#9DB3AB;
    }
    .to-top{
      display:inline-flex;
      align-items:center;
      gap:8px;
      background:transparent;
      border:1px solid rgba(255,255,255,.24);
      color:#C9D8D1;
      border-radius:999px;
      padding:7px 14px;
      font-size:13px;
      cursor:pointer;
      transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
    }
    .to-top:hover{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.4);}
    .to-top:focus-visible{outline:2px solid var(--accent-hi);outline-offset:2px;}

/* roulang page: category4 */
:root{
    --brand:#0E4A33;
    --brand-deep:#072A20;
    --brand-mid:#17795A;
    --brand-soft:#E4F2EC;
    --accent:#E4550A;
    --accent-hover:#CB4B06;
    --accent-light:#FF7A1A;
    --accent-soft:#FFF1E8;
    --gold:#F2B01E;
    --bg:#F6F7F4;
    --card:#FFFFFF;
    --line:#E3E8E4;
    --ink:#14201B;
    --ink-2:#4E5F58;
    --ink-3:#7E8D86;
    --ok:#1F8A5B;
    --warn:#C97A08;
    --err:#C0392B;
    --r-card:14px;
    --r-btn:10px;
    --r-img:12px;
    --sh-soft:0 1px 2px rgba(7,42,32,.06);
    --sh-lift:0 10px 28px -14px rgba(7,42,32,.22);
    --container:1200px;
    --font-cn:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
  html body{
    margin:0;
    padding:0;
    font-family:var(--font-cn);
    font-size:16px;
    line-height:1.85;
    color:var(--ink);
    background:var(--bg);
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;border-style:none;}
  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;}
  :focus-visible{outline:2px solid var(--accent-light);outline-offset:2px;}

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

  /* ============ 顶部导航 ============ */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:#fff;
    border-bottom:1px solid var(--line);
    transition:box-shadow .2s ease-out;
  }
  .site-header.is-stuck{box-shadow:0 8px 24px -18px rgba(7,42,32,.45);}
  .nav-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:20px;
    height:68px;
  }
  .logo{
    display:inline-flex;
    align-items:center;
    gap:10px;
    flex-shrink:0;
  }
  .logo-mark{
    width:40px;
    height:40px;
    border-radius:10px;
    background:var(--brand);
    color:#fff;
    font-size:15px;
    font-weight:700;
    letter-spacing:1px;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    flex-shrink:0;
  }
  .logo-text{display:flex;flex-direction:column;line-height:1.25;}
  .logo-name{font-size:15px;font-weight:700;color:var(--brand);}
  .logo-sub{font-size:11px;color:var(--ink-3);letter-spacing:.4px;}
  .nav-links{display:flex;align-items:center;gap:2px;}
  .nav-link{
    position:relative;
    display:inline-block;
    padding:9px 13px;
    border-radius:8px;
    font-size:15px;
    letter-spacing:.4px;
    color:var(--ink-2);
    transition:color .18s ease-out,background-color .18s ease-out;
  }
  .nav-link:hover{color:var(--brand);background:var(--brand-soft);}
  .nav-link.is-active{color:var(--brand);font-weight:600;}
  .nav-link.is-active::after{
    content:"";
    position:absolute;
    left:50%;
    bottom:1px;
    width:20px;
    height:2px;
    margin-left:-10px;
    border-radius:2px;
    background:var(--accent-light);
  }
  .nav-right{display:flex;align-items:center;gap:10px;flex-shrink:0;}
  .nav-icon-btn{
    width:38px;
    height:38px;
    border-radius:10px;
    border:1px solid var(--line);
    background:#fff;
    color:var(--brand);
    display:inline-flex;
    align-items:center;
    justify-content:center;
    font-size:16px;
    transition:background-color .18s ease-out,border-color .18s ease-out,transform .18s ease-out;
  }
  .nav-icon-btn:hover{background:var(--brand-soft);border-color:#BFE0D3;transform:translateY(-1px);}
  .nav-toggle{
    display:none;
    width:40px;
    height:40px;
    border-radius:10px;
    border:1px solid var(--line);
    background:#fff;
    color:var(--brand);
    font-size:17px;
    cursor:pointer;
  }
  .mobile-drawer{
    display:none;
    flex-direction:column;
    gap:4px;
    padding:14px 32px 20px;
    background:#fff;
    border-top:1px solid var(--line);
    box-shadow:0 16px 30px -22px rgba(7,42,32,.5);
  }
  .mobile-drawer.is-open{display:flex;}
  .mobile-link{
    padding:12px 10px;
    border-radius:8px;
    font-size:15px;
    color:var(--ink-2);
  }
  .mobile-link.is-active{background:var(--brand-soft);color:var(--brand);font-weight:600;}

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    padding:12px 22px;
    border-radius:var(--r-btn);
    border:1.5px solid transparent;
    font-size:16px;
    font-weight:700;
    line-height:1.2;
    cursor:pointer;
    transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
  }
  .btn:active{transform:translateY(1px);}
  .btn:disabled,.btn[aria-disabled="true"]{opacity:.55;cursor:not-allowed;transform:none;}
  .btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 20px -14px rgba(228,85,10,.85);}
  .btn-primary:hover{background:var(--accent-hover);transform:translateY(-1px);box-shadow:0 12px 26px -14px rgba(228,85,10,.9);}
  .btn-secondary{background:#fff;color:var(--brand);border-color:var(--brand);}
  .btn-secondary:hover{background:var(--brand-soft);transform:translateY(-1px);}
  .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.45);}
  .btn-ghost:hover{background:rgba(255,255,255,.12);transform:translateY(-1px);}
  .btn-sm{padding:9px 16px;font-size:14px;}
  .btn-block{width:100%;}

  /* ============ 标签 / 徽章 ============ */
  .badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    padding:5px 12px;
    border-radius:999px;
    font-size:12.5px;
    line-height:1.6;
    background:var(--brand-soft);
    color:var(--brand);
  }
  .badge-accent{background:var(--accent);color:#fff;}
  .badge-gold{background:#FDF3D8;color:#8A5D00;border:1px solid #F2DFA8;}
  .badge-line{background:#fff;border:1px solid var(--line);color:var(--ink-2);}

  /* ============ 内页 Hero ============ */
  .page-hero{
    position:relative;
    overflow:hidden;
    padding:44px 0 72px;
    background:linear-gradient(135deg,#072A20 0%,#0E4A33 58%,#17795A 100%);
    color:#fff;
  }
  .page-hero::before{
    content:"";
    position:absolute;
    inset:0;
    background-image:url("/assets/images/backpic/back-2.webp");
    background-size:cover;
    background-position:center;
    opacity:.15;
  }
  .page-hero::after{
    content:"";
    position:absolute;
    inset:0;
    background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
    background-size:52px 52px;
    opacity:.6;
  }
  .page-hero .container{position:relative;z-index:1;}
  .crumb{font-size:12.5px;color:#A9C4B8;display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
  .crumb a{color:#A9C4B8;transition:color .18s ease-out;}
  .crumb a:hover{color:#fff;}
  .crumb .sep{opacity:.6;}
  .crumb .current{color:#fff;font-weight:600;}
  .hero-grid{
    display:grid;
    grid-template-columns:1.1fr .9fr;
    gap:48px;
    align-items:center;
    margin-top:26px;
  }
  .hero-title{
    font-size:clamp(28px,4vw,44px);
    font-weight:800;
    line-height:1.25;
    letter-spacing:.5px;
    margin-bottom:16px;
  }
  .hero-sub{
    font-size:16.5px;
    line-height:1.85;
    color:#D7E7DF;
    max-width:620px;
    margin-bottom:26px;
  }
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:24px;}
  .hero-tags{display:flex;flex-wrap:wrap;gap:10px;}
  .hero-tags .badge{background:rgba(255,255,255,.12);color:#EAF4EF;border:1px solid rgba(255,255,255,.2);}
  .hero-figure{
    border-radius:16px;
    overflow:hidden;
    border:1px solid rgba(255,255,255,.22);
    background:rgba(255,255,255,.06);
    box-shadow:0 24px 50px -30px rgba(0,0,0,.7);
  }
  .hero-figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10;}

  /* ============ 通用板块 ============ */
  .section{padding:88px 0;}
  .section-tint{background:#fff;}
  .section-deep{background:var(--brand-deep);color:#fff;}
  .sec-head{max-width:760px;margin-bottom:44px;}
  .sec-title{
    position:relative;
    padding-left:16px;
    font-size:clamp(24px,3vw,32px);
    font-weight:700;
    line-height:1.35;
    color:var(--brand);
    margin-bottom:14px;
  }
  .sec-title::before{
    content:"";
    position:absolute;
    left:0;
    top:6px;
    width:4px;
    height:22px;
    border-radius:2px;
    background:var(--brand);
  }
  .sec-desc{font-size:16px;line-height:1.85;color:var(--ink-2);}
  .sec-head-inline{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:24px;
    flex-wrap:wrap;
    margin-bottom:44px;
  }
  .sec-head-inline .sec-head{margin-bottom:0;}
  .link-more{
    font-size:15px;
    font-weight:600;
    color:var(--accent);
    display:inline-flex;
    align-items:center;
    gap:6px;
    transition:gap .18s ease-out,color .18s ease-out;
  }
  .link-more:hover{gap:10px;color:var(--accent-hover);}

  /* ============ 设备卡 ============ */
  .device-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
  .device-card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    padding:24px;
    box-shadow:var(--sh-soft);
    display:flex;
    flex-direction:column;
    transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
  }
  .device-card:hover{transform:translateY(-2px);box-shadow:var(--sh-lift);border-color:#CFE3DA;}
  .device-icon{
    width:56px;
    height:56px;
    border-radius:14px;
    background:var(--brand-soft);
    color:var(--brand);
    display:inline-flex;
    align-items:center;
    justify-content:center;
    font-size:22px;
    margin-bottom:18px;
  }
  .device-title{font-size:18px;font-weight:600;margin-bottom:10px;color:var(--ink);}
  .device-text{font-size:15px;line-height:1.85;color:var(--ink-2);margin-bottom:18px;}
  .device-meta{
    display:flex;
    flex-wrap:wrap;
    gap:8px;
    margin-bottom:22px;
  }
  .device-card .btn{margin-top:auto;}

  /* ============ 图文区块 ============ */
  .split{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:56px;
    align-items:center;
  }
  .split-figure{
    border-radius:var(--r-img);
    overflow:hidden;
    border:1px solid var(--line);
    box-shadow:var(--sh-soft);
  }
  .split-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}
  .split-body h2{
    position:relative;
    padding-left:16px;
    font-size:clamp(22px,2.6vw,28px);
    font-weight:700;
    line-height:1.4;
    color:var(--brand);
    margin-bottom:16px;
  }
  .split-body h2::before{
    content:"";
    position:absolute;
    left:0;
    top:7px;
    width:4px;
    height:20px;
    border-radius:2px;
    background:var(--brand);
  }
  .split-body p{font-size:16px;line-height:1.85;color:var(--ink-2);margin-bottom:14px;}
  .check-list{display:flex;flex-direction:column;gap:12px;margin-top:20px;}
  .check-list li{
    display:flex;
    gap:10px;
    align-items:flex-start;
    font-size:15px;
    line-height:1.8;
    color:var(--ink-2);
  }
  .check-list i{color:var(--brand-mid);margin-top:6px;}

  /* ============ 步骤 ============ */
  .steps-wrap{position:relative;padding-top:6px;}
  .steps{position:relative;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}
  .steps-line{
    position:absolute;
    left:7%;
    right:7%;
    top:26px;
    height:2px;
    border-radius:2px;
    background:linear-gradient(90deg,var(--brand-mid),var(--accent-light));
    opacity:.3;
  }
  .step{position:relative;}
  .step-node{
    width:40px;
    height:40px;
    border-radius:999px;
    background:var(--brand);
    color:#fff;
    font-weight:700;
    font-size:15px;
    display:flex;
    align-items:center;
    justify-content:center;
    box-shadow:0 0 0 6px var(--bg);
    margin-bottom:18px;
  }
  .step-title{font-size:17px;font-weight:600;margin-bottom:8px;}
  .step-text{font-size:15px;line-height:1.8;color:var(--ink-2);}

  /* ============ 表格 ============ */
  .table-wrap{
    overflow-x:auto;
    border:1px solid var(--line);
    border-radius:var(--r-card);
    background:#fff;
    box-shadow:var(--sh-soft);
  }
  .spec-table{width:100%;border-collapse:collapse;min-width:680px;}
  .spec-table caption{
    caption-side:top;
    text-align:left;
    padding:18px 22px 4px;
    font-size:13px;
    color:var(--ink-3);
  }
  .spec-table th,.spec-table td{
    padding:16px 22px;
    text-align:left;
    font-size:14.5px;
    line-height:1.7;
    border-bottom:1px solid var(--line);
    white-space:nowrap;
  }
  .spec-table thead th{
    background:var(--brand);
    color:#fff;
    font-weight:600;
    font-size:14.5px;
    border-bottom:none;
  }
  .spec-table tbody tr:nth-child(even){background:var(--bg);}
  .spec-table tbody tr:last-child td{border-bottom:none;}
  .spec-table td:first-child{font-weight:600;color:var(--ink);}

  /* ============ 提示条 ============ */
  .notice{
    display:flex;
    gap:16px;
    align-items:flex-start;
    background:var(--accent-soft);
    border-left:4px solid var(--accent);
    border-radius:var(--r-card);
    padding:22px 24px;
    margin-top:32px;
  }
  .notice i{color:var(--accent);font-size:20px;margin-top:4px;}
  .notice-title{font-size:16px;font-weight:600;margin-bottom:6px;}
  .notice-text{font-size:15px;line-height:1.85;color:var(--ink-2);}

  .notice-soft{
    background:var(--brand-soft);
    border-left-color:var(--brand-mid);
  }
  .notice-soft i{color:var(--brand-mid);}

  /* ============ FAQ ============ */
  .faq-list{
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--r-card);
    overflow:hidden;
    box-shadow:var(--sh-soft);
  }
  .faq-item + .faq-item{border-top:1px solid var(--line);}
  .faq-question{
    width:100%;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:20px;
    min-height:56px;
    padding:18px 24px;
    background:#fff;
    border:none;
    text-align:left;
    font-size:16px;
    font-weight:600;
    color:var(--ink);
    cursor:pointer;
    transition:background-color .18s ease-out,color .18s ease-out;
  }
  .faq-question:hover{background:var(--brand-soft);color:var(--brand);}
  .faq-question i{
    color:var(--accent);
    font-size:15px;
    transition:transform .2s ease-out;
    flex-shrink:0;
  }
  .faq-item.is-open .faq-question{color:var(--brand);background:var(--brand-soft);}
  .faq-item.is-open .faq-question i{transform:rotate(45deg);}
  .faq-answer{
    display:none;
    padding:0 24px 22px;
    font-size:15px;
    line-height:1.85;
    color:var(--ink-2);
  }
  .faq-item.is-open .faq-answer{display:block;}

  /* ============ 表单 ============ */
  .form-layout{display:grid;grid-template-columns:1fr 1.05fr;gap:56px;align-items:start;}
  .form-points{display:flex;flex-direction:column;gap:20px;margin-top:28px;}
  .form-point{display:flex;gap:14px;align-items:flex-start;}
  .form-point span.icon{
    width:42px;
    height:42px;
    border-radius:12px;
    background:var(--brand-soft);
    color:var(--brand);
    display:inline-flex;
    align-items:center;
    justify-content:center;
    flex-shrink:0;
    font-size:16px;
  }
  .form-point h3{font-size:16.5px;font-weight:600;margin-bottom:4px;}
  .form-point p{font-size:14.5px;line-height:1.8;color:var(--ink-2);}
  .form-card{
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--r-card);
    padding:28px;
    box-shadow:var(--sh-soft);
  }
  .form-row{margin-bottom:18px;}
  .form-row label{
    display:block;
    font-size:14px;
    color:var(--ink-2);
    margin-bottom:8px;
  }
  .req{color:var(--err);margin-left:2px;}
  .form-row input[type="text"],
  .form-row input[type="tel"],
  .form-row select,
  .form-row textarea{
    width:100%;
    height:44px;
    padding:0 14px;
    border:1px solid var(--line);
    border-radius:var(--r-btn);
    background:#fff;
    font-size:15px;
    color:var(--ink);
    font-family:inherit;
    transition:border-color .18s ease-out,box-shadow .18s ease-out;
  }
  .form-row textarea{height:112px;padding:12px 14px;line-height:1.8;resize:vertical;}
  .form-row input:focus,
  .form-row select:focus,
  .form-row textarea:focus{
    outline:none;
    border-color:var(--brand-mid);
    box-shadow:0 0 0 3px rgba(23,121,90,.14);
  }
  .form-check{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--ink-2);line-height:1.7;}
  .form-check input{margin-top:5px;width:16px;height:16px;accent-color:var(--brand);}
  .form-error{display:none;font-size:13px;color:var(--err);margin-top:6px;}
  .form-error.is-show{display:block;}
  .form-success{
    display:none;
    align-items:center;
    gap:10px;
    background:var(--brand-soft);
    color:var(--brand);
    border-radius:var(--r-btn);
    padding:14px 16px;
    font-size:14.5px;
    margin-bottom:18px;
  }
  .form-success.is-show{display:flex;}

  /* ============ 通栏 CTA ============ */
  .cta-band{
    position:relative;
    overflow:hidden;
    background:linear-gradient(135deg,#072A20 0%,#0E4A33 100%);
    color:#fff;
    padding:64px 0;
  }
  .cta-band::after{
    content:"";
    position:absolute;
    inset:0;
    background-image:radial-gradient(circle at 88% 20%,rgba(255,122,26,.22),transparent 42%),linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px);
    background-size:auto,44px 44px;
  }
  .cta-inner{
    position:relative;
    z-index:1;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:32px;
    flex-wrap:wrap;
  }
  .cta-inner h2{font-size:clamp(22px,2.8vw,30px);font-weight:700;line-height:1.4;margin-bottom:10px;}
  .cta-inner p{font-size:15.5px;line-height:1.85;color:#CFE3DA;max-width:640px;}

  /* ============ 页脚 ============ */
  .site-footer{background:var(--brand-deep);color:#C9D8D1;padding:64px 0 28px;}
  .footer-grid{
    display:grid;
    grid-template-columns:1.5fr 1fr 1fr 1.2fr;
    gap:40px;
    padding-bottom:40px;
    border-bottom:1px solid rgba(255,255,255,.1);
  }
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
  .footer-brand .logo-mark{background:#fff;color:var(--brand);}
  .footer-brand-name{font-size:16px;font-weight:700;color:#fff;}
  .footer-about{font-size:14.5px;line-height:1.9;color:#C9D8D1;max-width:360px;}
  .footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
  .footer-links li{margin-bottom:10px;}
  .footer-links a{font-size:14.5px;color:#C9D8D1;transition:color .18s ease-out;}
  .footer-links a:hover{color:var(--accent-light);}
  .footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;line-height:1.8;margin-bottom:12px;color:#C9D8D1;}
  .footer-contact i{color:var(--brand-mid);margin-top:5px;}
  .footer-bottom{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    flex-wrap:wrap;
    padding-top:24px;
    font-size:13.5px;
    color:#9FB7AC;
  }
  .to-top{
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:9px 16px;
    border-radius:999px;
    border:1px solid rgba(255,255,255,.25);
    background:transparent;
    color:#EAF4EF;
    font-size:13.5px;
    cursor:pointer;
    transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out;
  }
  .to-top:hover{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.45);}

  /* ============ 响应式 ============ */
  @media (max-width:1024px){
    .nav-links{display:none;}
    .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
    .logo-sub{display:none;}
    .hero-grid{grid-template-columns:1fr;gap:32px;}
    .device-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .split{grid-template-columns:1fr;gap:32px;}
    .steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
    .steps-line{display:none;}
    .form-layout{grid-template-columns:1fr;gap:36px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
    .section{padding:72px 0;}
  }
  @media (min-width:1025px){
    .mobile-drawer{display:none !important;}
  }
  @media (max-width:768px){
    .container{padding:0 20px;}
    .mobile-drawer{padding:14px 20px 20px;}
    .section{padding:56px 0;}
    .page-hero{padding:32px 0 56px;}
    .hero-sub{font-size:15.5px;}
    .device-grid{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr;gap:28px;}
    .spec-table th,.spec-table td{padding:14px 16px;}
  }
  @media (max-width:520px){
    .container{padding:0 16px;}
    .mobile-drawer{padding:12px 16px 18px;}
    .hero-actions .btn{width:100%;}
    .steps{grid-template-columns:1fr;gap:26px;}
    .step-node{box-shadow:0 0 0 5px var(--bg);}
    .cta-inner .btn{width:100%;}
    .form-card{padding:20px;}
    .footer-bottom{flex-direction:column;align-items:flex-start;}
  }