/* roulang page: index */
:root {
      --color-bg: #f5f7fb;
      --color-surface: #ffffff;
      --color-surface-soft: #f0f4fa;
      --color-dark: #0b1020;
      --color-dark-2: #111a2f;
      --color-primary: #4f7cff;
      --color-primary-2: #7c5cff;
      --color-accent: #17d6a3;
      --color-warning: #ffb84d;
      --color-danger: #ff6b6b;
      --color-text: #172033;
      --color-muted: #667085;
      --color-subtle: #98a2b3;
      --color-border: rgba(15, 23, 42, .10);
      --shadow-sm: 0 8px 24px rgba(15, 23, 42, .07);
      --shadow-md: 0 18px 48px rgba(15, 23, 42, .12);
      --shadow-dark: 0 26px 70px rgba(0, 0, 0, .28);
      --radius-xs: 10px;
      --radius-sm: 14px;
      --radius-md: 20px;
      --radius-lg: 28px;
      --radius-xl: 36px;
      --container: 1180px;
      --header-height: 72px;
      --sidebar: 248px;
      --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
      --ease: cubic-bezier(.2, .8, .2, 1);
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
      background: var(--color-bg);
    }

    body {
      margin: 0;
      font-family: var(--font-main);
      color: var(--color-text);
      background:
        radial-gradient(circle at 10% 0%, rgba(79, 124, 255, .12), transparent 30%),
        radial-gradient(circle at 90% 12%, rgba(23, 214, 163, .12), transparent 28%),
        linear-gradient(180deg, #f8fbff 0%, #f4f7fb 42%, #eef3f8 100%);
      line-height: 1.75;
      letter-spacing: .01em;
      min-height: 100vh;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color .2s var(--ease), background .2s var(--ease), transform .2s var(--ease), box-shadow .2s var(--ease);
    }

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

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

    button,
    input,
    textarea,
    select {
      font: inherit;
    }

    button {
      cursor: pointer;
      border: 0;
    }

    input,
    textarea {
      width: 100%;
      outline: none;
    }

    :focus-visible {
      outline: 3px solid rgba(79, 124, 255, .35);
      outline-offset: 3px;
      border-radius: 10px;
    }

    .site-shell {
      min-height: 100vh;
      padding-top: var(--header-height);
    }

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

    .site-header {
      position: fixed;
      z-index: 1000;
      top: 0;
      left: 0;
      right: 0;
      height: var(--header-height);
      background: rgba(255, 255, 255, .86);
      border-bottom: 1px solid rgba(15, 23, 42, .08);
      backdrop-filter: blur(18px);
      box-shadow: 0 8px 24px rgba(15, 23, 42, .04);
    }

    .header-inner {
      width: min(1380px, calc(100% - 36px));
      height: 100%;
      margin: 0 auto;
      display: flex;
      align-items: center;
      gap: 18px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      flex: 0 0 auto;
      min-width: 232px;
      color: var(--color-dark);
      font-weight: 900;
      letter-spacing: -.03em;
    }

    .brand-mark {
      width: 40px;
      height: 40px;
      border-radius: 14px;
      display: grid;
      place-items: center;
      color: #fff;
      background:
        linear-gradient(135deg, rgba(79, 124, 255, 1), rgba(124, 92, 255, 1) 55%, rgba(23, 214, 163, 1));
      box-shadow: 0 12px 26px rgba(79, 124, 255, .28);
    }

    .brand-text {
      display: flex;
      flex-direction: column;
      line-height: 1.1;
    }

    .brand-name {
      font-size: 15px;
      white-space: nowrap;
    }

    .brand-note {
      margin-top: 3px;
      font-size: 11px;
      color: var(--color-muted);
      font-weight: 700;
      letter-spacing: .04em;
    }

    .top-search {
      position: relative;
      flex: 1 1 auto;
      max-width: 520px;
      min-width: 180px;
    }

    .top-search i {
      position: absolute;
      left: 16px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--color-subtle);
      font-size: 14px;
    }

    .top-search input {
      height: 42px;
      padding: 0 18px 0 42px;
      border: 1px solid rgba(15, 23, 42, .10);
      border-radius: 999px;
      background: rgba(246, 248, 252, .9);
      color: var(--color-text);
      box-shadow: inset 0 1px 0 rgba(255, 255, 255, .8);
      transition: border .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease);
    }

    .top-search input:focus {
      border-color: rgba(79, 124, 255, .42);
      background: #fff;
      box-shadow: 0 0 0 5px rgba(79, 124, 255, .10);
    }

    .top-nav {
      display: flex;
      align-items: center;
      gap: 8px;
      margin-left: auto;
    }

    .nav-link {
      padding: 10px 14px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 800;
      color: var(--color-muted);
    }

    .nav-link:hover {
      background: rgba(79, 124, 255, .08);
      color: var(--color-primary);
    }

    .nav-link.active {
      color: var(--color-dark);
      background: rgba(15, 23, 42, .06);
    }

    .switch-group {
      display: flex;
      align-items: center;
      gap: 8px;
      padding-left: 8px;
      border-left: 1px solid rgba(15, 23, 42, .08);
    }

    .switch-pill {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      height: 36px;
      padding: 0 12px;
      border-radius: 999px;
      background: #fff;
      border: 1px solid rgba(15, 23, 42, .10);
      color: var(--color-muted);
      font-size: 13px;
      font-weight: 800;
    }

    .mobile-menu-btn {
      display: none;
      width: 42px;
      height: 42px;
      border-radius: 14px;
      background: var(--color-dark);
      color: #fff;
      align-items: center;
      justify-content: center;
    }

    .layout {
      display: flex;
      align-items: flex-start;
      width: min(1380px, calc(100% - 36px));
      margin: 0 auto;
    }

    .doc-sidebar {
      position: sticky;
      top: calc(var(--header-height) + 22px);
      flex: 0 0 var(--sidebar);
      max-height: calc(100vh - var(--header-height) - 44px);
      padding: 20px 14px;
      margin-right: 28px;
      margin-top: 24px;
      overflow: auto;
      border: 1px solid rgba(15, 23, 42, .08);
      border-radius: 24px;
      background: rgba(255, 255, 255, .78);
      backdrop-filter: blur(16px);
      box-shadow: var(--shadow-sm);
    }

    .sidebar-title {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 8px 12px;
      color: var(--color-dark);
      font-size: 13px;
      font-weight: 900;
    }

    .sidebar-list {
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .sidebar-list a {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 10px 12px;
      border-radius: 14px;
      color: var(--color-muted);
      font-size: 13px;
      font-weight: 800;
    }

    .sidebar-list a i {
      width: 18px;
      color: var(--color-subtle);
      text-align: center;
    }

    .sidebar-list a:hover,
    .sidebar-list a.active {
      color: var(--color-primary);
      background: rgba(79, 124, 255, .09);
    }

    .sidebar-card {
      margin-top: 18px;
      padding: 16px;
      border-radius: 20px;
      color: #fff;
      background: linear-gradient(145deg, var(--color-dark), #1d2b57);
      box-shadow: 0 18px 42px rgba(11, 16, 32, .18);
    }

    .sidebar-card strong {
      display: block;
      margin-bottom: 6px;
      font-size: 15px;
    }

    .sidebar-card p {
      margin: 0;
      color: rgba(255, 255, 255, .72);
      font-size: 12px;
      line-height: 1.7;
    }

    .page-content {
      min-width: 0;
      flex: 1 1 auto;
      padding-bottom: 0;
    }

    .section {
      padding: 72px 0;
    }

    .section.compact {
      padding: 54px 0;
    }

    .section-head {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 28px;
      margin-bottom: 28px;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 12px;
      padding: 7px 12px;
      border: 1px solid rgba(79, 124, 255, .20);
      border-radius: 999px;
      color: var(--color-primary);
      background: rgba(79, 124, 255, .08);
      font-size: 12px;
      font-weight: 900;
      letter-spacing: .08em;
    }

    .section-title {
      margin: 0;
      color: var(--color-dark);
      font-size: clamp(28px, 3vw, 44px);
      line-height: 1.15;
      letter-spacing: -.045em;
      font-weight: 950;
    }

    .section-desc {
      max-width: 620px;
      margin: 14px 0 0;
      color: var(--color-muted);
      font-size: 16px;
    }

    .section-side-note {
      flex: 0 0 310px;
      padding: 16px 18px;
      border: 1px solid rgba(15, 23, 42, .08);
      border-radius: 18px;
      background: rgba(255, 255, 255, .72);
      color: var(--color-muted);
      font-size: 14px;
      box-shadow: var(--shadow-sm);
    }

    .hero {
      padding: 34px 0 72px;
    }

    .hero-panel {
      position: relative;
      overflow: hidden;
      min-height: 520px;
      padding: 34px;
      border-radius: 34px;
      color: #fff;
      background:
        linear-gradient(120deg, rgba(11, 16, 32, .98), rgba(17, 26, 47, .95)),
        radial-gradient(circle at 20% 30%, rgba(79, 124, 255, .28), transparent 32%);
      box-shadow: var(--shadow-dark);
      isolation: isolate;
    }

    .hero-panel::before,
    .hero-panel::after {
      content: "";
      position: absolute;
      z-index: -1;
      border-radius: 999px;
      filter: blur(2px);
    }

    .hero-panel::before {
      width: 520px;
      height: 520px;
      right: -170px;
      top: -190px;
      background: radial-gradient(circle, rgba(79, 124, 255, .46), transparent 66%);
      animation: floatGlow 7s var(--ease) infinite alternate;
    }

    .hero-panel::after {
      width: 360px;
      height: 360px;
      left: 28%;
      bottom: -180px;
      background: radial-gradient(circle, rgba(23, 214, 163, .25), transparent 68%);
      animation: floatGlow 9s var(--ease) infinite alternate-reverse;
    }

    @keyframes floatGlow {
      from { transform: translate3d(0, 0, 0) scale(1); }
      to { transform: translate3d(-18px, 16px, 0) scale(1.08); }
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 180px minmax(0, 1fr) 350px;
      gap: 26px;
      align-items: stretch;
      min-height: 452px;
    }

    .entry-rail {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      gap: 18px;
      padding: 18px;
      border: 1px solid rgba(255, 255, 255, .10);
      border-radius: 24px;
      background: rgba(255, 255, 255, .06);
      backdrop-filter: blur(12px);
    }

    .entry-top {
      display: flex;
      align-items: center;
      gap: 10px;
      color: rgba(255, 255, 255, .82);
      font-size: 13px;
      font-weight: 900;
    }

    .entry-code {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 8px;
    }

    .entry-code span {
      height: 36px;
      border-radius: 10px;
      background: rgba(255, 255, 255, .10);
      border: 1px solid rgba(255, 255, 255, .08);
    }

    .entry-mini {
      margin: 0;
      color: rgba(255, 255, 255, .58);
      font-size: 12px;
      line-height: 1.7;
    }

    .hero-main {
      display: flex;
      flex-direction: column;
      justify-content: center;
      padding: 14px 0;
    }

    .hero-badge-row {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-bottom: 20px;
    }

    .hud-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 12px;
      border-radius: 999px;
      color: rgba(255, 255, 255, .82);
      background: rgba(255, 255, 255, .08);
      border: 1px solid rgba(255, 255, 255, .12);
      font-size: 12px;
      font-weight: 900;
    }

    h1 {
      max-width: 730px;
      margin: 0;
      color: #fff;
      font-size: clamp(40px, 6vw, 74px);
      line-height: .98;
      letter-spacing: -.07em;
      font-weight: 950;
    }

    .hero-desc {
      max-width: 690px;
      margin: 24px 0 0;
      color: rgba(255, 255, 255, .72);
      font-size: 17px;
      line-height: 1.85;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-top: 30px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      min-height: 46px;
      padding: 0 20px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 900;
      letter-spacing: .01em;
      border: 1px solid transparent;
      transition: transform .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease), border .2s var(--ease), color .2s var(--ease);
    }

    .btn:hover {
      transform: translateY(-2px);
    }

    .btn:active {
      transform: translateY(0) scale(.98);
    }

    .btn-primary {
      color: #fff;
      background: linear-gradient(135deg, var(--color-primary), var(--color-primary-2));
      box-shadow: 0 16px 36px rgba(79, 124, 255, .30);
    }

    .btn-primary:hover,
    .btn-primary:focus {
      color: #fff;
      box-shadow: 0 20px 46px rgba(79, 124, 255, .40);
    }

    .btn-ghost {
      color: rgba(255, 255, 255, .86);
      background: rgba(255, 255, 255, .08);
      border-color: rgba(255, 255, 255, .16);
    }

    .btn-ghost:hover,
    .btn-ghost:focus {
      color: #fff;
      background: rgba(255, 255, 255, .13);
    }

    .btn-light {
      color: var(--color-dark);
      background: #fff;
      border-color: rgba(15, 23, 42, .08);
      box-shadow: var(--shadow-sm);
    }

    .btn-light:hover {
      color: var(--color-primary);
      box-shadow: var(--shadow-md);
    }

    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 12px;
      max-width: 620px;
      margin-top: 32px;
    }

    .metric-tile {
      padding: 16px;
      border-radius: 18px;
      background: rgba(255, 255, 255, .07);
      border: 1px solid rgba(255, 255, 255, .10);
    }

    .metric-num {
      display: block;
      color: #fff;
      font-size: 26px;
      line-height: 1;
      font-weight: 950;
      letter-spacing: -.04em;
    }

    .metric-label {
      display: block;
      margin-top: 8px;
      color: rgba(255, 255, 255, .58);
      font-size: 12px;
      font-weight: 800;
    }

    .rank-panel {
      align-self: center;
      padding: 18px;
      border-radius: 26px;
      background:
        linear-gradient(180deg, rgba(255, 255, 255, .12), rgba(255, 255, 255, .06));
      border: 1px solid rgba(255, 255, 255, .14);
      backdrop-filter: blur(18px);
      box-shadow: 0 22px 55px rgba(0, 0, 0, .22);
    }

    .rank-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 14px;
    }

    .rank-head strong {
      font-size: 15px;
      letter-spacing: -.02em;
    }

    .live-dot {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: rgba(255, 255, 255, .64);
      font-size: 12px;
      font-weight: 800;
    }

    .live-dot::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--color-accent);
      box-shadow: 0 0 0 6px rgba(23, 214, 163, .12);
    }

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

    .rank-item {
      display: grid;
      grid-template-columns: 34px minmax(0, 1fr) auto;
      align-items: center;
      gap: 10px;
      padding: 13px 12px;
      border-radius: 16px;
      background: rgba(10, 16, 32, .32);
      border: 1px solid rgba(255, 255, 255, .08);
    }

    .rank-no {
      width: 30px;
      height: 30px;
      display: grid;
      place-items: center;
      border-radius: 10px;
      color: #fff;
      background: rgba(255, 255, 255, .10);
      font-size: 12px;
      font-weight: 950;
    }

    .rank-title {
      min-width: 0;
    }

    .rank-title b {
      display: block;
      overflow: hidden;
      color: rgba(255, 255, 255, .90);
      font-size: 13px;
      line-height: 1.3;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    .rank-title small {
      display: block;
      margin-top: 4px;
      color: rgba(255, 255, 255, .46);
      font-size: 11px;
      font-weight: 700;
    }

    .rank-score {
      color: var(--color-accent);
      font-size: 12px;
      font-weight: 950;
    }

    .coupon-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 18px;
    }

    .coupon-card {
      position: relative;
      overflow: hidden;
      min-height: 206px;
      padding: 22px;
      border-radius: 24px;
      background: var(--color-surface);
      border: 1px solid rgba(15, 23, 42, .08);
      box-shadow: var(--shadow-sm);
      transition: transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
    }

    .coupon-card::before,
    .coupon-card::after {
      content: "";
      position: absolute;
      top: 86px;
      width: 22px;
      height: 22px;
      border-radius: 50%;
      background: var(--color-bg);
      border: 1px solid rgba(15, 23, 42, .08);
    }

    .coupon-card::before {
      left: -12px;
    }

    .coupon-card::after {
      right: -12px;
    }

    .coupon-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-md);
      border-color: rgba(79, 124, 255, .22);
    }

    .coupon-top {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      gap: 12px;
      padding-bottom: 18px;
      margin-bottom: 18px;
      border-bottom: 1px dashed rgba(15, 23, 42, .16);
    }

    .coupon-icon {
      width: 46px;
      height: 46px;
      display: grid;
      place-items: center;
      border-radius: 16px;
      color: #fff;
      background: linear-gradient(135deg, var(--color-primary), var(--color-primary-2));
      box-shadow: 0 12px 26px rgba(79, 124, 255, .22);
    }

    .coupon-tag {
      padding: 6px 10px;
      border-radius: 999px;
      color: var(--color-primary);
      background: rgba(79, 124, 255, .08);
      font-size: 12px;
      font-weight: 900;
      white-space: nowrap;
    }

    .coupon-card h3 {
      margin: 0 0 10px;
      color: var(--color-dark);
      font-size: 19px;
      line-height: 1.25;
      font-weight: 950;
      letter-spacing: -.03em;
    }

    .coupon-card p {
      margin: 0;
      color: var(--color-muted);
      font-size: 14px;
    }

    .rules-wrap {
      display: grid;
      grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
      gap: 24px;
      align-items: stretch;
    }

    .rule-board {
      padding: 28px;
      border-radius: 28px;
      color: #fff;
      background:
        radial-gradient(circle at 84% 18%, rgba(23, 214, 163, .22), transparent 30%),
        linear-gradient(145deg, var(--color-dark), #16213d);
      box-shadow: var(--shadow-dark);
    }

    .rule-board h2 {
      margin: 0;
      color: #fff;
      font-size: 34px;
      line-height: 1.1;
      font-weight: 950;
      letter-spacing: -.05em;
    }

    .rule-board p {
      margin: 16px 0 0;
      color: rgba(255, 255, 255, .68);
    }

    .rule-checks {
      display: grid;
      gap: 14px;
      margin-top: 26px;
    }

    .rule-check {
      display: flex;
      gap: 12px;
      padding: 14px;
      border-radius: 18px;
      background: rgba(255, 255, 255, .08);
      border: 1px solid rgba(255, 255, 255, .10);
    }

    .rule-check i {
      flex: 0 0 auto;
      width: 28px;
      height: 28px;
      display: grid;
      place-items: center;
      border-radius: 10px;
      color: var(--color-accent);
      background: rgba(23, 214, 163, .12);
    }

    .rule-check span {
      color: rgba(255, 255, 255, .82);
      font-size: 14px;
      font-weight: 800;
    }

    .steps-list {
      display: grid;
      gap: 14px;
    }

    .step-card {
      display: grid;
      grid-template-columns: 54px minmax(0, 1fr);
      gap: 16px;
      padding: 20px;
      border-radius: 22px;
      background: rgba(255, 255, 255, .82);
      border: 1px solid rgba(15, 23, 42, .08);
      box-shadow: var(--shadow-sm);
    }

    .step-num {
      width: 54px;
      height: 54px;
      display: grid;
      place-items: center;
      border-radius: 18px;
      color: var(--color-primary);
      background: rgba(79, 124, 255, .10);
      font-size: 18px;
      font-weight: 950;
    }

    .step-card h3 {
      margin: 0 0 6px;
      color: var(--color-dark);
      font-size: 18px;
      font-weight: 950;
      letter-spacing: -.02em;
    }

    .step-card p {
      margin: 0;
      color: var(--color-muted);
      font-size: 14px;
    }

    .news-layout {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 330px;
      gap: 24px;
      align-items: start;
    }

    .news-list,
    .recommend-box {
      padding: 22px;
      border-radius: 26px;
      background: rgba(255, 255, 255, .82);
      border: 1px solid rgba(15, 23, 42, .08);
      box-shadow: var(--shadow-sm);
    }

    .news-item {
      display: grid;
      grid-template-columns: 92px minmax(0, 1fr) auto;
      gap: 18px;
      align-items: center;
      padding: 18px 0;
      border-bottom: 1px solid rgba(15, 23, 42, .08);
    }

    .news-item:first-child {
      padding-top: 0;
    }

    .news-item:last-child {
      padding-bottom: 0;
      border-bottom: 0;
    }

    .news-date {
      display: inline-flex;
      justify-content: center;
      align-items: center;
      height: 34px;
      border-radius: 999px;
      color: var(--color-muted);
      background: var(--color-surface-soft);
      font-size: 12px;
      font-weight: 900;
    }

    .news-title {
      display: inline-block;
      color: var(--color-dark);
      font-size: 17px;
      font-weight: 950;
      letter-spacing: -.02em;
    }

    .news-title:hover {
      color: var(--color-primary);
    }

    .news-summary {
      margin: 5px 0 0;
      color: var(--color-muted);
      font-size: 14px;
      line-height: 1.65;
    }

    .news-arrow {
      width: 38px;
      height: 38px;
      display: grid;
      place-items: center;
      border-radius: 14px;
      color: var(--color-subtle);
      background: rgba(15, 23, 42, .04);
    }

    .news-item:hover .news-arrow {
      color: #fff;
      background: var(--color-primary);
      transform: translateX(2px);
    }

    .recommend-box h3 {
      margin: 0 0 14px;
      color: var(--color-dark);
      font-size: 20px;
      font-weight: 950;
      letter-spacing: -.03em;
    }

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

    .recommend-list a {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      padding: 13px 14px;
      border-radius: 16px;
      background: rgba(15, 23, 42, .04);
      color: var(--color-muted);
      font-size: 14px;
      font-weight: 850;
    }

    .recommend-list a:hover {
      color: var(--color-primary);
      background: rgba(79, 124, 255, .08);
      transform: translateX(2px);
    }

    .data-strip {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      overflow: hidden;
      border: 1px solid rgba(15, 23, 42, .08);
      border-radius: 28px;
      background: var(--color-surface);
      box-shadow: var(--shadow-md);
    }

    .data-cell {
      padding: 28px;
      border-right: 1px solid rgba(15, 23, 42, .08);
    }

    .data-cell:last-child {
      border-right: 0;
    }

    .data-cell strong {
      display: block;
      color: var(--color-dark);
      font-size: clamp(28px, 3vw, 44px);
      line-height: 1;
      letter-spacing: -.06em;
      font-weight: 950;
    }

    .data-cell span {
      display: block;
      margin-top: 10px;
      color: var(--color-muted);
      font-size: 14px;
      font-weight: 800;
    }

    .compare-panel {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 18px;
      margin-top: 26px;
    }

    .compare-card {
      padding: 24px;
      border-radius: 26px;
      border: 1px solid rgba(15, 23, 42, .08);
      background: var(--color-surface);
      box-shadow: var(--shadow-sm);
    }

    .compare-card.dark {
      color: #fff;
      background: linear-gradient(145deg, var(--color-dark), #1b2850);
      box-shadow: var(--shadow-dark);
    }

    .compare-card h3 {
      display: flex;
      align-items: center;
      gap: 10px;
      margin: 0 0 18px;
      color: inherit;
      font-size: 20px;
      font-weight: 950;
      letter-spacing: -.03em;
    }

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

    .compare-list li {
      display: flex;
      gap: 10px;
      color: var(--color-muted);
      font-size: 14px;
    }

    .compare-card.dark .compare-list li {
      color: rgba(255, 255, 255, .72);
    }

    .compare-list i {
      margin-top: 5px;
      color: var(--color-danger);
    }

    .compare-card.dark .compare-list i {
      color: var(--color-accent);
    }

    .poster-track {
      display: grid;
      grid-auto-flow: column;
      grid-auto-columns: minmax(210px, 1fr);
      gap: 18px;
      overflow-x: auto;
      padding: 4px 4px 18px;
      scroll-snap-type: x proximity;
    }

    .poster-card {
      position: relative;
      min-height: 280px;
      overflow: hidden;
      scroll-snap-align: start;
      border-radius: 26px;
      background:
        linear-gradient(145deg, rgba(79, 124, 255, .85), rgba(17, 26, 47, .94)),
        radial-gradient(circle at 40% 20%, rgba(255, 255, 255, .20), transparent 30%);
      box-shadow: var(--shadow-sm);
      transition: transform .22s var(--ease), box-shadow .22s var(--ease);
    }

    .poster-card:nth-child(2) {
      background: linear-gradient(145deg, rgba(23, 214, 163, .82), rgba(17, 26, 47, .96));
    }

    .poster-card:nth-child(3) {
      background: linear-gradient(145deg, rgba(124, 92, 255, .88), rgba(17, 26, 47, .96));
    }

    .poster-card:nth-child(4) {
      background: linear-gradient(145deg, rgba(255, 184, 77, .88), rgba(17, 26, 47, .96));
    }

    .poster-card:nth-child(5) {
      background: linear-gradient(145deg, rgba(255, 107, 107, .78), rgba(17, 26, 47, .96));
    }

    .poster-card:hover {
      transform: translateY(-7px) scale(1.01);
      box-shadow: var(--shadow-md);
    }

    .poster-pattern {
      position: absolute;
      inset: 0;
      opacity: .24;
      background-image:
        linear-gradient(rgba(255, 255, 255, .18) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .18) 1px, transparent 1px);
      background-size: 24px 24px;
      mask-image: linear-gradient(180deg, #000, transparent 80%);
    }

    .poster-content {
      position: absolute;
      left: 18px;
      right: 18px;
      bottom: 18px;
      z-index: 2;
      color: #fff;
    }

    .poster-content .tag {
      display: inline-flex;
      margin-bottom: 10px;
      padding: 6px 10px;
      border-radius: 999px;
      background: rgba(255, 255, 255, .14);
      color: rgba(255, 255, 255, .84);
      font-size: 12px;
      font-weight: 900;
    }

    .poster-content h3 {
      margin: 0;
      color: #fff;
      font-size: 22px;
      line-height: 1.2;
      font-weight: 950;
      letter-spacing: -.04em;
    }

    .poster-content p {
      margin: 9px 0 0;
      color: rgba(255, 255, 255, .68);
      font-size: 13px;
      line-height: 1.65;
    }

    .poster-cta {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-top: 14px;
      color: #fff;
      font-size: 13px;
      font-weight: 950;
      opacity: 0;
      transform: translateY(8px);
      transition: opacity .22s var(--ease), transform .22s var(--ease);
    }

    .poster-card:hover .poster-cta {
      opacity: 1;
      transform: translateY(0);
    }

    .story-band {
      position: relative;
      overflow: hidden;
      display: grid;
      grid-template-columns: minmax(0, 1fr) 410px;
      gap: 30px;
      align-items: center;
      padding: 34px;
      border-radius: 32px;
      color: #fff;
      background:
        radial-gradient(circle at 8% 15%, rgba(23, 214, 163, .22), transparent 30%),
        linear-gradient(135deg, #111a2f, #090d18);
      box-shadow: var(--shadow-dark);
    }

    .story-band h2 {
      margin: 0;
      color: #fff;
      font-size: clamp(30px, 4vw, 52px);
      line-height: 1.05;
      letter-spacing: -.06em;
      font-weight: 950;
    }

    .story-band p {
      margin: 18px 0 0;
      max-width: 690px;
      color: rgba(255, 255, 255, .68);
      font-size: 16px;
    }

    .story-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 24px;
    }

    .story-proof {
      display: grid;
      gap: 14px;
    }

    .proof-card {
      padding: 18px;
      border-radius: 20px;
      background: rgba(255, 255, 255, .08);
      border: 1px solid rgba(255, 255, 255, .10);
    }

    .proof-card strong {
      display: block;
      color: #fff;
      font-size: 22px;
      font-weight: 950;
      letter-spacing: -.04em;
    }

    .proof-card span {
      display: block;
      margin-top: 5px;
      color: rgba(255, 255, 255, .56);
      font-size: 13px;
      font-weight: 800;
    }

    .trust-wall {
      display: grid;
      grid-template-columns: 320px minmax(0, 1fr);
      gap: 24px;
      align-items: stretch;
    }

    .trust-score {
      padding: 28px;
      border-radius: 28px;
      background: var(--color-surface);
      border: 1px solid rgba(15, 23, 42, .08);
      box-shadow: var(--shadow-sm);
    }

    .stars {
      display: flex;
      gap: 5px;
      color: var(--color-warning);
      font-size: 18px;
      margin-bottom: 14px;
    }

    .trust-score strong {
      display: block;
      color: var(--color-dark);
      font-size: 48px;
      line-height: 1;
      font-weight: 950;
      letter-spacing: -.06em;
    }

    .trust-score p {
      margin: 14px 0 0;
      color: var(--color-muted);
      font-size: 14px;
    }

    .voice-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 16px;
    }

    .voice-card {
      padding: 22px;
      border-radius: 24px;
      background: rgba(255, 255, 255, .82);
      border: 1px solid rgba(15, 23, 42, .08);
      box-shadow: var(--shadow-sm);
    }

    .voice-card p {
      margin: 0;
      color: var(--color-muted);
      font-size: 14px;
      line-height: 1.75;
    }

    .voice-author {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-top: 16px;
      color: var(--color-dark);
      font-size: 13px;
      font-weight: 950;
    }

    .avatar {
      width: 34px;
      height: 34px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      color: #fff;
      background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    }

    .faq-grid {
      display: grid;
      grid-template-columns: minmax(0, .78fr) minmax(0, 1.22fr);
      gap: 24px;
      align-items: start;
    }

    .faq-aside {
      position: sticky;
      top: calc(var(--header-height) + 24px);
      padding: 26px;
      border-radius: 28px;
      color: #fff;
      background: linear-gradient(145deg, var(--color-dark), #1a2750);
      box-shadow: var(--shadow-dark);
    }

    .faq-aside h2 {
      margin: 0;
      color: #fff;
      font-size: 32px;
      line-height: 1.12;
      font-weight: 950;
      letter-spacing: -.05em;
    }

    .faq-aside p {
      margin: 14px 0 0;
      color: rgba(255, 255, 255, .66);
    }

    .accordion {
      background: transparent;
      border: 0;
    }

    .accordion-item {
      margin-bottom: 14px;
      border-radius: 22px;
      overflow: hidden;
      border: 1px solid rgba(15, 23, 42, .08);
      background: rgba(255, 255, 255, .85);
      box-shadow: var(--shadow-sm);
    }

    .accordion-title {
      position: relative;
      display: block;
      padding: 20px 54px 20px 22px;
      color: var(--color-dark);
      border: 0;
      font-size: 16px;
      font-weight: 950;
      letter-spacing: -.02em;
    }

    .accordion-title:hover,
    .accordion-title:focus {
      color: var(--color-primary);
      background: rgba(79, 124, 255, .04);
    }

    .accordion-title::before {
      right: 22px;
      margin-top: -12px;
      font-size: 24px;
      color: var(--color-primary);
    }

    .accordion-content {
      padding: 0 22px 22px;
      border: 0;
      background: transparent;
      color: var(--color-muted);
      font-size: 14px;
      line-height: 1.85;
    }

    .cta-card {
      position: relative;
      overflow: hidden;
      display: grid;
      grid-template-columns: minmax(0, 1fr) 410px;
      gap: 28px;
      padding: 34px;
      border-radius: 34px;
      background: #fff;
      border: 1px solid rgba(15, 23, 42, .08);
      box-shadow: var(--shadow-md);
    }

    .cta-card::before {
      content: "";
      position: absolute;
      width: 360px;
      height: 360px;
      right: -140px;
      top: -160px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(79, 124, 255, .18), transparent 65%);
    }

    .cta-copy {
      position: relative;
      z-index: 1;
    }

    .cta-card h2 {
      margin: 0;
      color: var(--color-dark);
      font-size: clamp(30px, 4vw, 54px);
      line-height: 1.05;
      letter-spacing: -.06em;
      font-weight: 950;
    }

    .cta-card p {
      margin: 18px 0 0;
      max-width: 660px;
      color: var(--color-muted);
      font-size: 16px;
    }

    .cta-form {
      position: relative;
      z-index: 1;
      display: grid;
      gap: 12px;
      padding: 22px;
      border-radius: 26px;
      background: var(--color-surface-soft);
      border: 1px solid rgba(15, 23, 42, .08);
    }

    .form-row {
      display: grid;
      gap: 8px;
    }

    .form-row label {
      color: var(--color-dark);
      font-size: 13px;
      font-weight: 950;
    }

    .form-row input,
    .form-row textarea {
      min-height: 46px;
      padding: 12px 14px;
      border-radius: 16px;
      border: 1px solid rgba(15, 23, 42, .10);
      background: #fff;
      color: var(--color-text);
      transition: border .2s var(--ease), box-shadow .2s var(--ease);
    }

    .form-row textarea {
      min-height: 96px;
      resize: vertical;
    }

    .form-row input:focus,
    .form-row textarea:focus {
      border-color: rgba(79, 124, 255, .42);
      box-shadow: 0 0 0 5px rgba(79, 124, 255, .10);
    }

    .form-tip {
      min-height: 22px;
      margin: 0;
      color: var(--color-muted);
      font-size: 12px;
    }

    .site-footer {
      margin-top: 0;
      padding: 48px 0 28px;
      color: rgba(255, 255, 255, .74);
      background:
        radial-gradient(circle at 85% 0%, rgba(79, 124, 255, .20), transparent 30%),
        linear-gradient(180deg, #111827, #090d18);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 320px;
      gap: 34px;
      align-items: start;
    }

    .footer-brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      color: #fff;
      font-size: 18px;
      font-weight: 950;
      letter-spacing: -.03em;
    }

    .footer-text {
      max-width: 720px;
      margin: 16px 0 0;
      color: rgba(255, 255, 255, .62);
      font-size: 14px;
    }

    .footer-links {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 10px;
    }

    .footer-links a {
      padding: 10px 12px;
      border-radius: 14px;
      color: rgba(255, 255, 255, .66);
      background: rgba(255, 255, 255, .05);
      font-size: 13px;
      font-weight: 850;
    }

    .footer-links a:hover {
      color: #fff;
      background: rgba(79, 124, 255, .18);
      transform: translateY(-2px);
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 20px;
      margin-top: 34px;
      padding-top: 22px;
      border-top: 1px solid rgba(255, 255, 255, .10);
      color: rgba(255, 255, 255, .48);
      font-size: 12px;
    }

    .back-top {
      position: fixed;
      right: 22px;
      bottom: 22px;
      z-index: 900;
      width: 46px;
      height: 46px;
      display: grid;
      place-items: center;
      border-radius: 16px;
      color: #fff;
      background: var(--color-dark);
      box-shadow: var(--shadow-md);
    }

    .back-top:hover {
      color: #fff;
      transform: translateY(-4px);
      background: var(--color-primary);
    }

    @media (max-width: 1200px) {
      .layout {
        display: block;
      }

      .doc-sidebar {
        position: fixed;
        z-index: 1100;
        left: 18px;
        top: calc(var(--header-height) + 12px);
        width: min(320px, calc(100vw - 36px));
        max-height: calc(100vh - var(--header-height) - 28px);
        margin: 0;
        transform: translateX(calc(-100% - 30px));
        transition: transform .25s var(--ease);
      }

      .doc-sidebar.open {
        transform: translateX(0);
      }

      .mobile-menu-btn {
        display: inline-flex;
      }

      .brand {
        min-width: auto;
      }

      .brand-note {
        display: none;
      }

      .hero-grid {
        grid-template-columns: 150px minmax(0, 1fr);
      }

      .rank-panel {
        grid-column: 1 / -1;
      }

      .coupon-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }
    }

    @media (max-width: 1024px) {
      .header-inner {
        width: min(100% - 24px, 980px);
        gap: 12px;
      }

      .top-search {
        max-width: none;
      }

      .switch-group {
        display: none;
      }

      .section {
        padding: 58px 0;
      }

      .hero-panel {
        padding: 24px;
      }

      .rules-wrap,
      .news-layout,
      .story-band,
      .trust-wall,
      .faq-grid,
      .cta-card,
      .footer-grid {
        grid-template-columns: 1fr;
      }

      .faq-aside {
        position: static;
      }

      .data-strip {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .data-cell:nth-child(2) {
        border-right: 0;
      }

      .data-cell:nth-child(1),
      .data-cell:nth-child(2) {
        border-bottom: 1px solid rgba(15, 23, 42, .08);
      }
    }

    @media (max-width: 768px) {
      .container,
      .layout {
        width: min(100% - 28px, 720px);
      }

      .site-header {
        height: auto;
        min-height: var(--header-height);
      }

      .header-inner {
        flex-wrap: wrap;
        padding: 12px 0;
      }

      .brand {
        flex: 1 1 auto;
      }

      .brand-name {
        white-space: normal;
        font-size: 14px;
      }

      .top-search {
        order: 5;
        flex-basis: 100%;
      }

      .top-nav {
        margin-left: 0;
      }

      .site-shell {
        padding-top: 126px;
      }

      .doc-sidebar {
        top: 136px;
        max-height: calc(100vh - 154px);
      }

      .hero {
        padding-top: 22px;
      }

      .hero-panel {
        border-radius: 26px;
      }

      .hero-grid {
        grid-template-columns: 1fr;
        min-height: auto;
      }

      .entry-rail {
        order: 2;
      }

      .hero-main {
        order: 1;
      }

      .rank-panel {
        order: 3;
      }

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

      .section-head {
        display: block;
      }

      .section-side-note {
        margin-top: 18px;
      }

      .coupon-grid,
      .compare-panel,
      .voice-grid {
        grid-template-columns: 1fr;
      }

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

      .news-date {
        justify-content: flex-start;
        padding: 0 12px;
      }

      .news-copy {
        grid-column: 1 / -1;
      }

      .story-band,
      .cta-card {
        padding: 24px;
        border-radius: 26px;
      }

      .footer-bottom {
        flex-direction: column;
      }
    }

    @media (max-width: 520px) {
      h1 {
        font-size: 38px;
      }

      .section {
        padding: 48px 0;
      }

      .hero-panel {
        padding: 18px;
      }

      .rank-item {
        grid-template-columns: 30px minmax(0, 1fr);
      }

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

      .coupon-card,
      .rule-board,
      .news-list,
      .recommend-box,
      .trust-score,
      .voice-card,
      .faq-aside,
      .cta-form {
        border-radius: 20px;
        padding: 18px;
      }

      .data-strip {
        grid-template-columns: 1fr;
      }

      .data-cell {
        border-right: 0;
        border-bottom: 1px solid rgba(15, 23, 42, .08);
      }

      .data-cell:last-child {
        border-bottom: 0;
      }

      .poster-track {
        grid-auto-columns: minmax(230px, 82vw);
      }

      .btn {
        width: 100%;
      }

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

      .back-top {
        right: 14px;
        bottom: 14px;
      }
    }