/* roulang page: index */
:root {
      --primary: #2563eb;
      --primary-dark: #1d4ed8;
      --primary-soft: #dbeafe;
      --secondary: #0ea5e9;
      --accent: #f59e0b;
      --accent-soft: #fff7ed;
      --success: #10b981;
      --danger: #ef4444;
      --ink: #0f172a;
      --text: #334155;
      --muted: #64748b;
      --weak: #94a3b8;
      --line: #e2e8f0;
      --bg: #f8fafc;
      --surface: #ffffff;
      --surface-blue: #f1f7ff;
      --deep: #0b1220;
      --radius-xs: 10px;
      --radius-sm: 14px;
      --radius-md: 20px;
      --radius-lg: 28px;
      --shadow-sm: 0 10px 28px rgba(15, 23, 42, 0.08);
      --shadow-md: 0 18px 45px rgba(37, 99, 235, 0.16);
      --shadow-lg: 0 28px 70px rgba(15, 23, 42, 0.18);
      --container: 1180px;
      --nav-height: 76px;
      --transition: all .25s ease;
    }

    * {
      box-sizing: border-box;
    }

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

    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at 8% 3%, rgba(37, 99, 235, .13), transparent 30%),
        radial-gradient(circle at 92% 2%, rgba(14, 165, 233, .12), transparent 26%),
        linear-gradient(180deg, #f8fbff 0%, #ffffff 34%, #f8fafc 100%);
      line-height: 1.75;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition);
    }

    a:hover {
      color: var(--primary);
    }

    img, svg {
      max-width: 100%;
      display: block;
    }

    button, input {
      font: inherit;
    }

    button:focus-visible,
    a:focus-visible,
    input:focus-visible {
      outline: 3px solid rgba(37, 99, 235, .28);
      outline-offset: 3px;
      border-radius: 12px;
    }

    ::selection {
      background: rgba(37, 99, 235, .18);
      color: var(--ink);
    }

    .container-page {
      width: min(var(--container), calc(100% - 40px));
      margin: 0 auto;
    }

    .site-header {
      position: fixed;
      inset: 18px 0 auto 0;
      z-index: 1000;
      transition: var(--transition);
      pointer-events: none;
    }

    .site-header .navbar-shell {
      pointer-events: auto;
      width: min(var(--container), calc(100% - 40px));
      min-height: var(--nav-height);
      margin: 0 auto;
      padding: 12px 14px 12px 18px;
      display: flex;
      align-items: center;
      gap: 18px;
      border: 1px solid rgba(255, 255, 255, .62);
      border-radius: 999px;
      background: rgba(255, 255, 255, .66);
      box-shadow: 0 18px 45px rgba(30, 64, 175, .10);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
    }

    .site-header.is-scrolled {
      inset-top: 10px;
    }

    .site-header.is-scrolled .navbar-shell {
      background: rgba(255, 255, 255, .92);
      border-color: rgba(226, 232, 240, .95);
      box-shadow: 0 12px 35px rgba(15, 23, 42, .10);
    }

    .brand-link {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      flex: 0 0 auto;
      color: var(--ink);
      font-weight: 900;
      letter-spacing: -.02em;
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      border-radius: 15px;
      display: grid;
      place-items: center;
      color: #fff;
      font-weight: 900;
      background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
      box-shadow: 0 12px 25px rgba(37, 99, 235, .25);
    }

    .brand-text {
      font-size: 1.12rem;
      white-space: nowrap;
    }

    .nav-main {
      display: flex;
      align-items: center;
      gap: 6px;
      margin-left: 12px;
    }

    .nav-main a {
      padding: 10px 16px;
      border-radius: 999px;
      font-size: .95rem;
      font-weight: 800;
      color: var(--muted);
    }

    .nav-main a:hover,
    .nav-main a.active {
      color: var(--primary-dark);
      background: rgba(37, 99, 235, .10);
    }

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

    .nav-search {
      position: relative;
      width: 250px;
      max-width: 28vw;
    }

    .nav-search input {
      width: 100%;
      height: 44px;
      border: 1px solid rgba(203, 213, 225, .95);
      border-radius: 999px;
      padding: 0 42px 0 16px;
      color: var(--ink);
      background: rgba(248, 250, 252, .82);
      transition: var(--transition);
    }

    .nav-search input::placeholder {
      color: var(--weak);
    }

    .nav-search input:focus {
      border-color: rgba(37, 99, 235, .55);
      background: #fff;
      box-shadow: 0 0 0 5px rgba(37, 99, 235, .10);
      outline: none;
    }

    .nav-search .search-icon {
      position: absolute;
      right: 15px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--primary);
      font-weight: 900;
    }

    .btn-brand {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 46px;
      padding: 12px 20px;
      border: 0;
      border-radius: 999px;
      color: #fff;
      font-weight: 900;
      letter-spacing: .01em;
      background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
      box-shadow: 0 14px 30px rgba(37, 99, 235, .24);
      transition: var(--transition);
      cursor: pointer;
      white-space: nowrap;
    }

    .btn-brand:hover {
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 20px 38px rgba(37, 99, 235, .30);
    }

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

    .btn-soft {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 46px;
      padding: 12px 20px;
      border: 1px solid rgba(37, 99, 235, .18);
      border-radius: 999px;
      color: var(--primary-dark);
      font-weight: 900;
      background: rgba(219, 234, 254, .78);
      transition: var(--transition);
      white-space: nowrap;
    }

    .btn-soft:hover {
      color: var(--primary-dark);
      background: #dbeafe;
      border-color: rgba(37, 99, 235, .32);
      transform: translateY(-2px);
      box-shadow: var(--shadow-sm);
    }

    .btn-ghost {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 44px;
      padding: 10px 16px;
      border-radius: 999px;
      border: 1px solid var(--line);
      color: var(--text);
      font-weight: 800;
      background: #fff;
      transition: var(--transition);
    }

    .btn-ghost:hover {
      border-color: rgba(37, 99, 235, .35);
      color: var(--primary);
      box-shadow: var(--shadow-sm);
      transform: translateY(-2px);
    }

    .mobile-toggle {
      display: none;
      width: 46px;
      height: 46px;
      border: 1px solid rgba(203, 213, 225, .9);
      border-radius: 16px;
      background: rgba(255, 255, 255, .76);
      color: var(--ink);
      align-items: center;
      justify-content: center;
      padding: 0;
    }

    .mobile-toggle span,
    .mobile-toggle span::before,
    .mobile-toggle span::after {
      display: block;
      width: 18px;
      height: 2px;
      border-radius: 99px;
      background: var(--ink);
      position: relative;
      transition: var(--transition);
    }

    .mobile-toggle span::before,
    .mobile-toggle span::after {
      content: "";
      position: absolute;
      left: 0;
    }

    .mobile-toggle span::before {
      top: -6px;
    }

    .mobile-toggle span::after {
      top: 6px;
    }

    .hero {
      position: relative;
      padding: 146px 0 72px;
      overflow: hidden;
    }

    .hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        linear-gradient(115deg, rgba(37, 99, 235, .10), transparent 38%),
        radial-gradient(circle at 75% 28%, rgba(245, 158, 11, .18), transparent 22%);
      pointer-events: none;
    }

    .hero-ribbon {
      position: relative;
      border: 1px solid rgba(191, 219, 254, .88);
      border-radius: 36px;
      background: rgba(255, 255, 255, .78);
      box-shadow: var(--shadow-lg);
      backdrop-filter: blur(16px);
      overflow: hidden;
    }

    .hero-top {
      padding: 42px 42px 18px;
      display: grid;
      grid-template-columns: 1.08fr .92fr;
      gap: 30px;
      align-items: end;
      background:
        linear-gradient(135deg, rgba(239, 246, 255, .96) 0%, rgba(255, 255, 255, .88) 58%, rgba(255, 247, 237, .86) 100%);
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 16px;
      padding: 8px 12px;
      border-radius: 999px;
      color: var(--primary-dark);
      background: rgba(219, 234, 254, .88);
      font-size: .88rem;
      font-weight: 900;
      border: 1px solid rgba(37, 99, 235, .14);
    }

    .eyebrow .dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--success);
      box-shadow: 0 0 0 5px rgba(16, 185, 129, .12);
    }

    h1 {
      margin: 0;
      color: var(--ink);
      font-size: clamp(2.35rem, 5vw, 5.2rem);
      line-height: .98;
      letter-spacing: -.07em;
      font-weight: 950;
    }

    .hero-intro {
      max-width: 760px;
      margin: 22px 0 0;
      color: var(--text);
      font-size: 1.08rem;
    }

    .hero-cta {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 28px;
    }

    .hero-facts {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      margin-top: 30px;
      max-width: 720px;
    }

    .fact-pill {
      padding: 16px 18px;
      border-radius: 20px;
      background: rgba(255, 255, 255, .76);
      border: 1px solid rgba(226, 232, 240, .92);
      box-shadow: 0 10px 25px rgba(15, 23, 42, .05);
    }

    .fact-pill strong {
      display: block;
      color: var(--ink);
      font-size: 1.25rem;
      line-height: 1.1;
      font-weight: 950;
    }

    .fact-pill span {
      color: var(--muted);
      font-size: .9rem;
    }

    .coupon-hero {
      border-radius: 30px;
      padding: 24px;
      color: #fff;
      background:
        radial-gradient(circle at 85% 15%, rgba(255, 255, 255, .28), transparent 24%),
        linear-gradient(145deg, #1d4ed8 0%, #2563eb 48%, #0ea5e9 100%);
      box-shadow: 0 25px 55px rgba(37, 99, 235, .30);
      min-height: 326px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      position: relative;
      overflow: hidden;
    }

    .coupon-hero::after {
      content: "88";
      position: absolute;
      right: -8px;
      bottom: -50px;
      font-size: 9rem;
      line-height: 1;
      font-weight: 950;
      color: rgba(255, 255, 255, .12);
      letter-spacing: -.08em;
    }

    .coupon-hero .label {
      width: fit-content;
      padding: 8px 12px;
      border-radius: 999px;
      color: #dbeafe;
      background: rgba(255, 255, 255, .14);
      border: 1px solid rgba(255, 255, 255, .22);
      font-weight: 900;
      font-size: .88rem;
    }

    .coupon-amount {
      margin-top: 28px;
      font-weight: 950;
      letter-spacing: -.06em;
      font-size: clamp(3rem, 6vw, 5.8rem);
      line-height: .85;
    }

    .coupon-hero p {
      position: relative;
      z-index: 1;
      margin: 16px 0 0;
      max-width: 380px;
      color: rgba(255, 255, 255, .88);
    }

    .coupon-meta {
      position: relative;
      z-index: 1;
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 22px;
    }

    .coupon-meta span {
      padding: 8px 11px;
      border-radius: 999px;
      background: rgba(255, 255, 255, .14);
      border: 1px solid rgba(255, 255, 255, .20);
      font-size: .88rem;
      font-weight: 800;
    }

    .plan-row {
      padding: 18px;
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      background: #fff;
    }

    .plan-card {
      position: relative;
      padding: 22px;
      border-radius: 26px;
      background: var(--surface);
      border: 1px solid var(--line);
      box-shadow: 0 12px 28px rgba(15, 23, 42, .06);
      transition: var(--transition);
    }

    .plan-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
      border-color: rgba(37, 99, 235, .28);
    }

    .plan-card.recommend {
      margin-top: -34px;
      border-color: rgba(37, 99, 235, .35);
      box-shadow: 0 24px 55px rgba(37, 99, 235, .20);
      background: linear-gradient(180deg, #ffffff 0%, #eff6ff 100%);
    }

    .badge-hot {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 7px 10px;
      border-radius: 999px;
      color: #92400e;
      background: #fef3c7;
      font-size: .82rem;
      font-weight: 900;
    }

    .plan-title {
      margin: 13px 0 6px;
      color: var(--ink);
      font-weight: 950;
      font-size: 1.18rem;
    }

    .plan-desc {
      margin: 0;
      color: var(--muted);
      font-size: .94rem;
    }

    .plan-price {
      margin: 18px 0 16px;
      color: var(--ink);
      font-size: 2rem;
      font-weight: 950;
      letter-spacing: -.04em;
    }

    .plan-price small {
      font-size: .85rem;
      color: var(--muted);
      font-weight: 800;
      letter-spacing: 0;
    }

    .check-list {
      list-style: none;
      padding: 0;
      margin: 0;
      display: grid;
      gap: 10px;
    }

    .check-list li {
      display: flex;
      gap: 9px;
      color: var(--text);
      font-size: .94rem;
    }

    .check-list li::before {
      content: "✓";
      flex: 0 0 22px;
      width: 22px;
      height: 22px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      color: var(--primary);
      background: var(--primary-soft);
      font-weight: 950;
      line-height: 1;
    }

    main {
      position: relative;
      z-index: 1;
    }

    .section {
      padding: 76px 0;
    }

    .section-tight {
      padding: 54px 0;
    }

    .section-head {
      margin-bottom: 30px;
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 24px;
    }

    .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 10px;
      color: var(--primary);
      font-weight: 950;
      font-size: .9rem;
    }

    .section-kicker::before {
      content: "";
      width: 28px;
      height: 3px;
      border-radius: 999px;
      background: linear-gradient(90deg, var(--primary), var(--secondary));
    }

    .section-title {
      margin: 0;
      color: var(--ink);
      font-size: clamp(1.72rem, 3.1vw, 3.05rem);
      line-height: 1.16;
      letter-spacing: -.045em;
      font-weight: 950;
    }

    .section-desc {
      margin: 12px 0 0;
      max-width: 720px;
      color: var(--muted);
      font-size: 1.02rem;
    }

    .surface-card {
      border-radius: var(--radius-lg);
      background: rgba(255, 255, 255, .88);
      border: 1px solid rgba(226, 232, 240, .95);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .surface-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }

    .vertical-strip {
      display: grid;
      grid-template-columns: .72fr 1.28fr;
      gap: 24px;
      align-items: stretch;
    }

    .seed-feature {
      padding: 30px;
      background:
        radial-gradient(circle at top right, rgba(37, 99, 235, .14), transparent 36%),
        #fff;
      min-height: 100%;
    }

    .seed-feature .big-icon {
      width: 66px;
      height: 66px;
      border-radius: 22px;
      display: grid;
      place-items: center;
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      box-shadow: 0 18px 36px rgba(37, 99, 235, .22);
      font-size: 1.7rem;
    }

    .seed-feature h3 {
      margin: 22px 0 10px;
      color: var(--ink);
      font-size: 1.55rem;
      font-weight: 950;
      letter-spacing: -.03em;
    }

    .seed-feature p {
      margin: 0;
      color: var(--muted);
    }

    .seed-posters {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 16px;
    }

    .poster-card {
      min-height: 276px;
      padding: 18px;
      border-radius: 28px;
      border: 1px solid rgba(226, 232, 240, .9);
      background: #fff;
      box-shadow: 0 14px 32px rgba(15, 23, 42, .08);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: var(--transition);
      overflow: hidden;
      position: relative;
    }

    .poster-card:nth-child(even) {
      transform: translateY(24px);
    }

    .poster-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-md);
    }

    .poster-card:nth-child(even):hover {
      transform: translateY(12px);
    }

    .poster-art {
      height: 118px;
      border-radius: 22px;
      background:
        linear-gradient(135deg, rgba(37, 99, 235, .92), rgba(14, 165, 233, .72)),
        radial-gradient(circle at 20% 20%, #fff, transparent 20%);
      position: relative;
      overflow: hidden;
    }

    .poster-art::after {
      content: "";
      position: absolute;
      inset: 18px;
      border-radius: 18px;
      border: 1px solid rgba(255, 255, 255, .36);
      background: rgba(255, 255, 255, .10);
    }

    .poster-card:nth-child(2) .poster-art {
      background: linear-gradient(135deg, #0f172a, #2563eb 62%, #f59e0b);
    }

    .poster-card:nth-child(3) .poster-art {
      background: linear-gradient(135deg, #0369a1, #22c55e);
    }

    .poster-card:nth-child(4) .poster-art {
      background: linear-gradient(135deg, #7c3aed, #0ea5e9);
    }

    .poster-card h3 {
      margin: 16px 0 8px;
      color: var(--ink);
      font-size: 1.06rem;
      font-weight: 950;
    }

    .poster-card p {
      margin: 0;
      color: var(--muted);
      font-size: .92rem;
      line-height: 1.6;
    }

    .tag-row {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 14px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      padding: 6px 10px;
      border-radius: 999px;
      color: var(--primary-dark);
      background: rgba(219, 234, 254, .70);
      font-size: .82rem;
      font-weight: 850;
      border: 1px solid rgba(37, 99, 235, .12);
    }

    .hot-layout {
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 24px;
      align-items: start;
    }

    .rank-list {
      padding: 14px;
      display: grid;
      gap: 12px;
    }

    .rank-item {
      display: grid;
      grid-template-columns: 52px 1fr auto;
      gap: 14px;
      align-items: center;
      padding: 16px;
      border-radius: 22px;
      background: #fff;
      border: 1px solid var(--line);
      transition: var(--transition);
    }

    .rank-item:hover {
      border-color: rgba(37, 99, 235, .28);
      transform: translateX(4px);
      box-shadow: 0 12px 28px rgba(15, 23, 42, .07);
    }

    .rank-no {
      width: 46px;
      height: 46px;
      border-radius: 16px;
      display: grid;
      place-items: center;
      color: var(--primary);
      background: var(--primary-soft);
      font-weight: 950;
      font-size: 1.05rem;
    }

    .rank-item:first-child .rank-no {
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      box-shadow: 0 12px 24px rgba(37, 99, 235, .20);
    }

    .rank-title {
      margin: 0;
      color: var(--ink);
      font-size: 1.05rem;
      font-weight: 950;
    }

    .rank-text {
      margin: 3px 0 0;
      color: var(--muted);
      font-size: .92rem;
    }

    .rank-score {
      color: var(--accent);
      font-weight: 950;
      white-space: nowrap;
    }

    .deal-box {
      padding: 30px;
      background:
        linear-gradient(145deg, #0f172a, #1e3a8a 62%, #2563eb);
      color: #fff;
      position: sticky;
      top: 112px;
      overflow: hidden;
    }

    .deal-box::after {
      content: "";
      position: absolute;
      width: 210px;
      height: 210px;
      right: -90px;
      bottom: -90px;
      border-radius: 50%;
      background: rgba(255, 255, 255, .10);
    }

    .deal-box h3 {
      position: relative;
      z-index: 1;
      margin: 0 0 10px;
      font-size: 1.45rem;
      font-weight: 950;
    }

    .deal-box p {
      position: relative;
      z-index: 1;
      margin: 0;
      color: rgba(255, 255, 255, .78);
    }

    .deal-steps {
      position: relative;
      z-index: 1;
      margin-top: 22px;
      display: grid;
      gap: 12px;
    }

    .deal-step {
      display: flex;
      gap: 12px;
      align-items: flex-start;
      padding: 14px;
      border-radius: 18px;
      background: rgba(255, 255, 255, .10);
      border: 1px solid rgba(255, 255, 255, .14);
    }

    .deal-step span {
      flex: 0 0 28px;
      width: 28px;
      height: 28px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      background: rgba(255, 255, 255, .18);
      font-weight: 950;
    }

    .deal-step strong {
      display: block;
      color: #fff;
      line-height: 1.3;
    }

    .deal-step small {
      color: rgba(255, 255, 255, .74);
    }

    .topic-band {
      border-radius: 32px;
      padding: 34px;
      background:
        linear-gradient(135deg, rgba(239, 246, 255, .96), #ffffff 58%, rgba(255, 247, 237, .85));
      border: 1px solid rgba(191, 219, 254, .65);
      box-shadow: var(--shadow-sm);
      display: grid;
      grid-template-columns: .86fr 1.14fr;
      gap: 26px;
      align-items: center;
    }

    .topic-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .topic-link {
      padding: 11px 15px;
      border-radius: 999px;
      background: #fff;
      border: 1px solid rgba(226, 232, 240, .95);
      color: var(--text);
      font-weight: 850;
      box-shadow: 0 10px 22px rgba(15, 23, 42, .05);
      transition: var(--transition);
    }

    .topic-link:hover {
      color: var(--primary);
      border-color: rgba(37, 99, 235, .30);
      background: #eff6ff;
      transform: translateY(-3px);
    }

    .review-wall {
      display: grid;
      grid-template-columns: repeat(12, 1fr);
      gap: 16px;
    }

    .review-card {
      padding: 24px;
      border-radius: 28px;
      background: #fff;
      border: 1px solid var(--line);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .review-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
    }

    .review-card:nth-child(1) {
      grid-column: span 5;
    }

    .review-card:nth-child(2) {
      grid-column: span 4;
    }

    .review-card:nth-child(3) {
      grid-column: span 3;
    }

    .review-card:nth-child(4) {
      grid-column: span 4;
    }

    .review-card:nth-child(5) {
      grid-column: span 5;
    }

    .review-card:nth-child(6) {
      grid-column: span 3;
    }

    .stars {
      color: var(--accent);
      letter-spacing: 2px;
      font-weight: 950;
      margin-bottom: 12px;
    }

    .review-card p {
      margin: 0;
      color: var(--text);
    }

    .reviewer {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-top: 18px;
      color: var(--muted);
      font-weight: 850;
      font-size: .94rem;
    }

    .avatar {
      width: 38px;
      height: 38px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      font-weight: 950;
    }

    .story-band {
      position: relative;
      padding: 44px;
      border-radius: 36px;
      overflow: hidden;
      background:
        radial-gradient(circle at 86% 18%, rgba(14, 165, 233, .22), transparent 24%),
        linear-gradient(135deg, #0b1220 0%, #102a56 52%, #1d4ed8 100%);
      color: #fff;
      box-shadow: var(--shadow-lg);
    }

    .story-band::after {
      content: "";
      position: absolute;
      width: 280px;
      height: 280px;
      right: -90px;
      bottom: -130px;
      border: 1px solid rgba(255, 255, 255, .16);
      border-radius: 50%;
      background: rgba(255, 255, 255, .06);
    }

    .story-grid {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: 1fr .85fr;
      gap: 34px;
      align-items: center;
    }

    .story-band h2 {
      margin: 0;
      font-size: clamp(1.8rem, 3vw, 3rem);
      line-height: 1.15;
      letter-spacing: -.045em;
      font-weight: 950;
    }

    .story-band p {
      margin: 16px 0 0;
      color: rgba(255, 255, 255, .78);
      max-width: 720px;
    }

    .story-values {
      display: grid;
      gap: 12px;
    }

    .value-card {
      padding: 17px;
      border-radius: 22px;
      background: rgba(255, 255, 255, .10);
      border: 1px solid rgba(255, 255, 255, .14);
    }

    .value-card strong {
      display: block;
      color: #fff;
      margin-bottom: 4px;
    }

    .value-card span {
      color: rgba(255, 255, 255, .72);
      font-size: .94rem;
    }

    .news-layout {
      display: grid;
      grid-template-columns: 1.25fr .75fr;
      gap: 24px;
      align-items: start;
    }

    .news-list {
      padding: 12px;
      display: grid;
      gap: 10px;
    }

    .news-item {
      display: grid;
      grid-template-columns: 108px 1fr;
      gap: 16px;
      align-items: center;
      padding: 16px;
      border-radius: 22px;
      border: 1px solid transparent;
      transition: var(--transition);
      background: #fff;
    }

    .news-item:hover {
      border-color: rgba(37, 99, 235, .28);
      background: #f8fbff;
      transform: translateY(-2px);
    }

    .news-date {
      padding: 12px;
      border-radius: 18px;
      background: var(--surface-blue);
      color: var(--primary-dark);
      text-align: center;
      font-weight: 950;
      line-height: 1.2;
    }

    .news-date small {
      display: block;
      margin-top: 4px;
      color: var(--muted);
      font-weight: 800;
      font-size: .78rem;
    }

    .news-item h3 {
      margin: 0;
      color: var(--ink);
      font-size: 1.06rem;
      font-weight: 950;
      line-height: 1.45;
    }

    .news-item p {
      margin: 5px 0 0;
      color: var(--muted);
      font-size: .92rem;
      line-height: 1.6;
    }

    .recommend-panel {
      padding: 28px;
      background: #fff;
      position: sticky;
      top: 112px;
    }

    .recommend-panel h3 {
      margin: 0 0 14px;
      color: var(--ink);
      font-size: 1.25rem;
      font-weight: 950;
    }

    .mini-list {
      list-style: none;
      margin: 0;
      padding: 0;
      display: grid;
      gap: 12px;
    }

    .mini-list a {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      padding: 12px 0;
      border-bottom: 1px solid var(--line);
      font-weight: 850;
      color: var(--text);
    }

    .mini-list li:last-child a {
      border-bottom: 0;
    }

    .mini-list a:hover {
      color: var(--primary);
      padding-left: 4px;
    }

    .mini-list span {
      color: var(--weak);
      font-size: .88rem;
      white-space: nowrap;
    }

    .faq-wrap {
      display: grid;
      grid-template-columns: .78fr 1.22fr;
      gap: 26px;
      align-items: start;
    }

    .faq-aside {
      padding: 28px;
      background:
        linear-gradient(180deg, #eff6ff, #ffffff);
      border: 1px solid rgba(191, 219, 254, .70);
    }

    .faq-aside h2 {
      margin: 0 0 12px;
      color: var(--ink);
      font-size: 1.8rem;
      font-weight: 950;
      letter-spacing: -.035em;
    }

    .faq-aside p {
      margin: 0;
      color: var(--muted);
    }

    .accordion {
      display: grid;
      gap: 12px;
    }

    .accordion-item {
      border: 1px solid var(--line) !important;
      border-radius: 22px !important;
      overflow: hidden;
      background: #fff;
      box-shadow: 0 10px 24px rgba(15, 23, 42, .04);
    }

    .accordion-button {
      padding: 20px 22px;
      color: var(--ink);
      font-weight: 950;
      background: #fff;
      box-shadow: none !important;
    }

    .accordion-button:not(.collapsed) {
      color: var(--primary-dark);
      background: #eff6ff;
    }

    .accordion-button::after {
      border-radius: 50%;
      background-color: rgba(37, 99, 235, .10);
      background-position: center;
      padding: 12px;
    }

    .accordion-body {
      padding: 0 22px 22px;
      color: var(--muted);
      line-height: 1.8;
      background: #fff;
    }

    .coupon-section {
      padding-bottom: 92px;
    }

    .coupon-board {
      border-radius: 38px;
      padding: 34px;
      background:
        radial-gradient(circle at 16% 12%, rgba(255, 255, 255, .75), transparent 25%),
        linear-gradient(135deg, #eaf3ff 0%, #ffffff 48%, #fff7ed 100%);
      border: 1px solid rgba(191, 219, 254, .78);
      box-shadow: var(--shadow-lg);
      overflow: hidden;
    }

    .coupon-board-head {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 24px;
      align-items: center;
      margin-bottom: 26px;
    }

    .coupon-board h2 {
      margin: 0;
      color: var(--ink);
      font-size: clamp(1.8rem, 3vw, 3.15rem);
      line-height: 1.12;
      letter-spacing: -.045em;
      font-weight: 950;
    }

    .coupon-board p {
      margin: 12px 0 0;
      max-width: 760px;
      color: var(--muted);
    }

    .coupon-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
    }

    .coupon-card {
      position: relative;
      padding: 22px;
      min-height: 190px;
      border-radius: 28px;
      background: #fff;
      border: 1px solid rgba(226, 232, 240, .95);
      box-shadow: 0 16px 34px rgba(15, 23, 42, .08);
      overflow: hidden;
      transition: var(--transition);
    }

    .coupon-card::before,
    .coupon-card::after {
      content: "";
      position: absolute;
      top: 50%;
      width: 20px;
      height: 20px;
      border-radius: 50%;
      background: #eef6ff;
      transform: translateY(-50%);
      border: 1px solid rgba(226, 232, 240, .8);
    }

    .coupon-card::before {
      left: -10px;
    }

    .coupon-card::after {
      right: -10px;
    }

    .coupon-card:hover {
      transform: translateY(-6px);
      border-color: rgba(37, 99, 235, .28);
      box-shadow: var(--shadow-md);
    }

    .coupon-card .coupon-name {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      color: var(--ink);
      font-weight: 950;
    }

    .coupon-card .coupon-name span {
      padding: 5px 9px;
      border-radius: 999px;
      color: var(--primary);
      background: var(--primary-soft);
      font-size: .78rem;
    }

    .coupon-value {
      margin: 18px 0 8px;
      color: var(--primary-dark);
      font-size: 2.4rem;
      line-height: 1;
      font-weight: 950;
      letter-spacing: -.04em;
    }

    .coupon-card p {
      margin: 0;
      color: var(--muted);
      font-size: .93rem;
      line-height: 1.65;
    }

    .rule-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 14px;
      margin-top: 18px;
    }

    .rule-item {
      display: flex;
      gap: 12px;
      align-items: flex-start;
      padding: 16px;
      border-radius: 22px;
      background: rgba(255, 255, 255, .78);
      border: 1px solid rgba(226, 232, 240, .95);
    }

    .rule-item .rule-icon {
      flex: 0 0 34px;
      width: 34px;
      height: 34px;
      border-radius: 12px;
      display: grid;
      place-items: center;
      color: var(--primary);
      background: var(--primary-soft);
      font-weight: 950;
    }

    .rule-item strong {
      display: block;
      color: var(--ink);
      margin-bottom: 2px;
    }

    .rule-item span {
      color: var(--muted);
      font-size: .9rem;
    }

    .site-footer {
      padding: 58px 0 30px;
      color: rgba(255, 255, 255, .78);
      background:
        radial-gradient(circle at 80% 20%, rgba(37, 99, 235, .25), transparent 28%),
        linear-gradient(135deg, #08111f 0%, #0f172a 62%, #102a56 100%);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.2fr .8fr .8fr;
      gap: 34px;
      align-items: start;
    }

    .footer-brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      color: #fff;
      font-weight: 950;
      font-size: 1.18rem;
      margin-bottom: 16px;
    }

    .footer-brand .brand-mark {
      box-shadow: none;
    }

    .footer-text {
      margin: 0;
      max-width: 560px;
      color: rgba(255, 255, 255, .70);
    }

    .footer-col h3 {
      margin: 0 0 14px;
      color: #fff;
      font-size: 1rem;
      font-weight: 950;
    }

    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
      display: grid;
      gap: 10px;
    }

    .footer-links a {
      color: rgba(255, 255, 255, .70);
    }

    .footer-links a:hover {
      color: #fff;
      padding-left: 4px;
    }

    .footer-bottom {
      margin-top: 34px;
      padding-top: 22px;
      border-top: 1px solid rgba(255, 255, 255, .12);
      display: flex;
      justify-content: space-between;
      gap: 18px;
      flex-wrap: wrap;
      color: rgba(255, 255, 255, .58);
      font-size: .92rem;
    }

    .floating-cta {
      position: fixed;
      left: 50%;
      bottom: 18px;
      z-index: 900;
      transform: translateX(-50%);
      width: min(640px, calc(100% - 28px));
      padding: 10px 12px 10px 18px;
      border-radius: 999px;
      background: rgba(15, 23, 42, .86);
      color: #fff;
      border: 1px solid rgba(255, 255, 255, .16);
      box-shadow: 0 20px 60px rgba(15, 23, 42, .30);
      backdrop-filter: blur(16px);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
    }

    .floating-cta strong {
      font-weight: 950;
    }

    .floating-cta span {
      color: rgba(255, 255, 255, .70);
      font-size: .9rem;
    }

    .floating-cta .btn-brand {
      min-height: 42px;
      padding: 10px 16px;
      box-shadow: none;
    }

    @media (max-width: 1024px) {
      :root {
        --nav-height: auto;
      }

      .nav-search {
        width: 210px;
      }

      .hero-top,
      .vertical-strip,
      .hot-layout,
      .topic-band,
      .story-grid,
      .news-layout,
      .faq-wrap {
        grid-template-columns: 1fr;
      }

      .plan-row,
      .coupon-grid,
      .rule-row {
        grid-template-columns: 1fr;
      }

      .plan-card.recommend {
        margin-top: 0;
      }

      .seed-posters {
        grid-template-columns: repeat(2, 1fr);
      }

      .poster-card:nth-child(even),
      .poster-card:nth-child(even):hover {
        transform: none;
      }

      .deal-box,
      .recommend-panel {
        position: static;
      }

      .review-card:nth-child(n) {
        grid-column: span 6;
      }

      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .container-page,
      .site-header .navbar-shell {
        width: min(100% - 24px, var(--container));
      }

      .site-header {
        inset: 10px 0 auto 0;
      }

      .site-header .navbar-shell {
        border-radius: 26px;
        flex-wrap: wrap;
        align-items: center;
        padding: 10px;
      }

      .mobile-toggle {
        display: inline-flex;
        margin-left: auto;
      }

      .nav-main,
      .nav-actions {
        display: none;
        width: 100%;
        margin-left: 0;
      }

      .navbar-shell.open .nav-main,
      .navbar-shell.open .nav-actions {
        display: flex;
      }

      .navbar-shell.open .nav-main {
        padding-top: 8px;
        flex-direction: column;
        align-items: stretch;
      }

      .navbar-shell.open .nav-actions {
        flex-direction: column;
        align-items: stretch;
        padding: 4px 2px 6px;
      }

      .navbar-shell.open .mobile-toggle span {
        background: transparent;
      }

      .navbar-shell.open .mobile-toggle span::before {
        top: 0;
        transform: rotate(45deg);
      }

      .navbar-shell.open .mobile-toggle span::after {
        top: 0;
        transform: rotate(-45deg);
      }

      .nav-main a,
      .nav-actions .btn-brand {
        width: 100%;
        justify-content: center;
      }

      .nav-search {
        width: 100%;
        max-width: none;
      }

      .hero {
        padding: 118px 0 54px;
      }

      .hero-top {
        padding: 28px 20px 16px;
      }

      .hero-ribbon {
        border-radius: 28px;
      }

      .coupon-hero {
        min-height: 270px;
        border-radius: 24px;
      }

      .hero-facts {
        grid-template-columns: 1fr;
      }

      .plan-row {
        padding: 14px;
      }

      .section {
        padding: 58px 0;
      }

      .section-head,
      .coupon-board-head {
        display: block;
      }

      .section-head .btn-ghost,
      .coupon-board-head .btn-brand {
        margin-top: 16px;
      }

      .seed-posters {
        grid-template-columns: 1fr;
      }

      .review-wall {
        grid-template-columns: 1fr;
      }

      .review-card:nth-child(n) {
        grid-column: auto;
      }

      .news-item {
        grid-template-columns: 1fr;
      }

      .coupon-board,
      .story-band {
        padding: 26px 20px;
        border-radius: 28px;
      }

      .footer-grid {
        grid-template-columns: 1fr;
      }

      .floating-cta {
        border-radius: 24px;
        align-items: stretch;
        flex-direction: column;
      }

      .floating-cta .btn-brand {
        width: 100%;
      }
    }

    @media (max-width: 520px) {
      .brand-text {
        font-size: 1rem;
      }

      .brand-mark {
        width: 38px;
        height: 38px;
        border-radius: 13px;
      }

      h1 {
        font-size: 2.3rem;
      }

      .hero-intro,
      .section-desc {
        font-size: .98rem;
      }

      .hero-cta {
        align-items: stretch;
        flex-direction: column;
      }

      .hero-cta .btn-brand,
      .hero-cta .btn-soft,
      .hero-cta .btn-ghost {
        width: 100%;
      }

      .rank-item {
        grid-template-columns: 44px 1fr;
      }

      .rank-score {
        grid-column: 2;
      }

      .topic-link {
        width: 100%;
        justify-content: center;
        text-align: center;
      }

      .footer-bottom {
        display: block;
      }

      .footer-bottom span {
        display: block;
        margin-top: 8px;
      }
    }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}