/* roulang page: index */
:root {
      --bg: #f7f8fc;
      --bg-soft: #eef3ff;
      --surface: #ffffff;
      --surface-2: #f9fbff;
      --text: #111827;
      --muted: #5f6b7a;
      --muted-2: #7b8797;
      --primary: #2563eb;
      --primary-dark: #1d4ed8;
      --primary-soft: #dbeafe;
      --accent: #14b8a6;
      --accent-soft: #ccfbf1;
      --warning: #f59e0b;
      --danger: #ef4444;
      --border: #e5e7eb;
      --border-strong: #d1d5db;
      --shadow-sm: 0 8px 22px rgba(15, 23, 42, .06);
      --shadow-md: 0 18px 48px rgba(15, 23, 42, .10);
      --shadow-lg: 0 30px 70px rgba(37, 99, 235, .16);
      --radius-sm: 12px;
      --radius-md: 18px;
      --radius-lg: 28px;
      --radius-xl: 36px;
      --container: 1180px;
      --ease: all .22s ease;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at 10% 8%, rgba(37, 99, 235, .12), transparent 28%),
        radial-gradient(circle at 90% 0%, rgba(20, 184, 166, .12), transparent 30%),
        linear-gradient(180deg, #fbfdff 0%, var(--bg) 42%, #ffffff 100%);
      line-height: 1.72;
      min-height: 100vh;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

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

    button, input {
      font: inherit;
    }

    button {
      border: 0;
      cursor: pointer;
    }

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(255, 255, 255, .82);
      border-bottom: 1px solid rgba(229, 231, 235, .8);
      backdrop-filter: blur(16px);
    }

    .nav-wrap {
      height: 76px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 22px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      font-weight: 900;
      letter-spacing: -.02em;
      white-space: nowrap;
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      display: grid;
      place-items: center;
      border-radius: 15px;
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      box-shadow: 0 12px 30px rgba(37, 99, 235, .24);
    }

    .brand-text {
      font-size: 18px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 8px;
      border: 1px solid rgba(229, 231, 235, .92);
      background: rgba(249, 250, 251, .78);
      border-radius: 999px;
    }

    .nav-links a {
      position: relative;
      display: inline-flex;
      align-items: center;
      min-height: 38px;
      padding: 0 16px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 700;
      color: var(--muted);
      transition: var(--ease);
    }

    .nav-links a:hover {
      color: var(--primary);
      background: #fff;
      box-shadow: var(--shadow-sm);
    }

    .nav-links a.active {
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      box-shadow: 0 10px 24px rgba(37, 99, 235, .22);
    }

    .nav-cta {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      min-height: 44px;
      padding: 0 18px;
      border-radius: 999px;
      background: #0f172a;
      color: #fff;
      font-size: 14px;
      font-weight: 800;
      transition: var(--ease);
      box-shadow: 0 14px 30px rgba(15, 23, 42, .15);
    }

    .nav-cta:hover {
      transform: translateY(-2px);
      background: #020617;
      box-shadow: 0 18px 38px rgba(15, 23, 42, .22);
    }

    .menu-btn {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: 14px;
      background: var(--surface);
      border: 1px solid var(--border);
      color: var(--text);
      align-items: center;
      justify-content: center;
    }

    .hero {
      padding: 34px 0 56px;
    }

    .hero-stage {
      position: relative;
      min-height: 520px;
      overflow: hidden;
      border-radius: var(--radius-xl);
      background:
        linear-gradient(135deg, rgba(15, 23, 42, .88), rgba(30, 64, 175, .78)),
        radial-gradient(circle at 78% 22%, rgba(20, 184, 166, .55), transparent 34%),
        linear-gradient(135deg, #172554, #020617);
      box-shadow: var(--shadow-lg);
      isolation: isolate;
    }

    .hero-stage::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(rgba(255,255,255,.10) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.10) 1px, transparent 1px);
      background-size: 44px 44px;
      opacity: .18;
      z-index: -1;
    }

    .series-nav {
      position: absolute;
      left: 24px;
      right: 24px;
      top: 24px;
      z-index: 2;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 10px;
      border: 1px solid rgba(255,255,255,.18);
      border-radius: 999px;
      background: rgba(255,255,255,.12);
      backdrop-filter: blur(16px);
      color: rgba(255,255,255,.82);
    }

    .series-tabs {
      display: flex;
      align-items: center;
      gap: 8px;
      overflow-x: auto;
      scrollbar-width: none;
    }

    .series-tabs::-webkit-scrollbar {
      display: none;
    }

    .series-tabs span {
      flex: 0 0 auto;
      padding: 8px 14px;
      border-radius: 999px;
      font-size: 13px;
      font-weight: 800;
      background: rgba(255,255,255,.10);
      border: 1px solid rgba(255,255,255,.10);
    }

    .series-tabs span.hot {
      color: #0f172a;
      background: #fff;
    }

    .series-note {
      flex: 0 0 auto;
      padding-right: 10px;
      font-size: 13px;
      font-weight: 700;
    }

    .hero-content {
      position: relative;
      z-index: 1;
      padding: 120px 58px 54px;
      color: #fff;
      display: grid;
      grid-template-columns: 1.15fr .85fr;
      gap: 42px;
      align-items: end;
    }

    .hero-copy {
      max-width: 740px;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 12px;
      border-radius: 999px;
      background: rgba(255,255,255,.12);
      border: 1px solid rgba(255,255,255,.18);
      color: rgba(255,255,255,.90);
      font-size: 13px;
      font-weight: 800;
      margin-bottom: 18px;
    }

    h1 {
      font-size: clamp(34px, 5.2vw, 68px);
      line-height: 1.05;
      letter-spacing: -.055em;
      font-weight: 950;
      max-width: 850px;
    }

    .hero-desc {
      margin-top: 22px;
      max-width: 690px;
      font-size: 18px;
      line-height: 1.9;
      color: rgba(255,255,255,.82);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      min-height: 48px;
      padding: 0 20px;
      border-radius: 999px;
      font-size: 15px;
      font-weight: 900;
      transition: var(--ease);
      border: 1px solid transparent;
      white-space: nowrap;
    }

    .btn-primary {
      background: #fff;
      color: #0f172a;
      box-shadow: 0 16px 36px rgba(255,255,255,.18);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 20px 46px rgba(255,255,255,.25);
    }

    .btn-secondary {
      color: #fff;
      border-color: rgba(255,255,255,.24);
      background: rgba(255,255,255,.10);
      backdrop-filter: blur(10px);
    }

    .btn-secondary:hover {
      background: rgba(255,255,255,.18);
      transform: translateY(-2px);
    }

    .btn-dark {
      background: #0f172a;
      color: #fff;
      box-shadow: 0 14px 30px rgba(15, 23, 42, .16);
    }

    .btn-dark:hover {
      background: #020617;
      transform: translateY(-2px);
    }

    .btn-light {
      background: var(--surface);
      color: var(--primary);
      border-color: var(--border);
    }

    .btn-light:hover {
      border-color: rgba(37, 99, 235, .3);
      box-shadow: var(--shadow-sm);
      transform: translateY(-2px);
    }

    .hero-panel {
      padding: 22px;
      border-radius: 28px;
      background: rgba(255,255,255,.14);
      border: 1px solid rgba(255,255,255,.18);
      backdrop-filter: blur(18px);
      box-shadow: 0 24px 70px rgba(0, 0, 0, .18);
    }

    .panel-head {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 14px;
      margin-bottom: 16px;
    }

    .panel-title {
      font-size: 18px;
      font-weight: 900;
      color: #fff;
    }

    .status-pill {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 10px;
      border-radius: 999px;
      color: #042f2e;
      background: #99f6e4;
      font-size: 12px;
      font-weight: 900;
    }

    .status-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #0f766e;
      box-shadow: 0 0 0 5px rgba(15, 118, 110, .16);
    }

    .check-list {
      display: grid;
      gap: 10px;
    }

    .check-item {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      padding: 13px;
      border-radius: 16px;
      background: rgba(255,255,255,.10);
      border: 1px solid rgba(255,255,255,.12);
      color: rgba(255,255,255,.86);
      font-size: 14px;
    }

    .check-icon {
      flex: 0 0 auto;
      width: 22px;
      height: 22px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      background: rgba(20, 184, 166, .22);
      color: #99f6e4;
      font-weight: 900;
      line-height: 1;
    }

    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      margin-top: 18px;
    }

    .metric {
      padding: 14px;
      border-radius: 18px;
      background: rgba(255,255,255,.12);
      border: 1px solid rgba(255,255,255,.12);
    }

    .metric strong {
      display: block;
      font-size: 22px;
      line-height: 1.1;
      color: #fff;
    }

    .metric span {
      display: block;
      margin-top: 5px;
      font-size: 12px;
      color: rgba(255,255,255,.68);
    }

    main {
      overflow: hidden;
    }

    section {
      padding: 70px 0;
    }

    .section-head {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 24px;
      margin-bottom: 28px;
    }

    .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--primary);
      font-size: 13px;
      font-weight: 950;
      letter-spacing: .04em;
      margin-bottom: 10px;
    }

    .section-title {
      font-size: clamp(26px, 3.4vw, 42px);
      line-height: 1.18;
      letter-spacing: -.035em;
      font-weight: 950;
    }

    .section-desc {
      max-width: 620px;
      color: var(--muted);
      font-size: 16px;
      line-height: 1.9;
    }

    .commission-band {
      padding-top: 18px;
    }

    .commission-grid {
      display: grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 22px;
      align-items: stretch;
    }

    .highlight-card {
      position: relative;
      overflow: hidden;
      padding: 34px;
      border-radius: var(--radius-lg);
      background: var(--surface);
      border: 1px solid var(--border);
      box-shadow: var(--shadow-md);
    }

    .highlight-card::after {
      content: "";
      position: absolute;
      width: 210px;
      height: 210px;
      right: -80px;
      top: -80px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(37,99,235,.18), transparent 70%);
    }

    .highlight-card h2 {
      font-size: 30px;
      line-height: 1.25;
      letter-spacing: -.03em;
      margin-bottom: 14px;
    }

    .highlight-card p {
      color: var(--muted);
      max-width: 580px;
    }

    .reward-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      margin-top: 24px;
    }

    .reward-box {
      padding: 18px;
      border-radius: 18px;
      background: var(--surface-2);
      border: 1px solid var(--border);
    }

    .reward-box strong {
      display: block;
      font-size: 26px;
      color: var(--primary);
      line-height: 1.1;
      letter-spacing: -.03em;
    }

    .reward-box span {
      display: block;
      margin-top: 8px;
      color: var(--muted);
      font-size: 13px;
    }

    .feature-stack {
      display: grid;
      gap: 14px;
    }

    .feature-item {
      display: flex;
      gap: 14px;
      align-items: flex-start;
      padding: 20px;
      border-radius: 22px;
      background: #fff;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
      transition: var(--ease);
    }

    .feature-item:hover {
      transform: translateY(-3px);
      border-color: rgba(37,99,235,.25);
      box-shadow: var(--shadow-md);
    }

    .feature-icon {
      width: 44px;
      height: 44px;
      border-radius: 15px;
      display: grid;
      place-items: center;
      color: var(--primary);
      background: var(--primary-soft);
      flex: 0 0 auto;
      font-weight: 950;
    }

    .feature-item h3 {
      font-size: 17px;
      margin-bottom: 5px;
    }

    .feature-item p {
      font-size: 14px;
      color: var(--muted);
    }

    .materials {
      background: linear-gradient(180deg, rgba(238,243,255,.75), rgba(255,255,255,0));
    }

    .material-layout {
      display: grid;
      grid-template-columns: .85fr 1.15fr;
      gap: 24px;
      align-items: start;
    }

    .toolbox {
      position: sticky;
      top: 100px;
      padding: 26px;
      border-radius: var(--radius-lg);
      background: #0f172a;
      color: #fff;
      overflow: hidden;
      box-shadow: var(--shadow-lg);
    }

    .toolbox::before {
      content: "";
      position: absolute;
      width: 220px;
      height: 220px;
      border-radius: 50%;
      right: -80px;
      bottom: -90px;
      background: rgba(20,184,166,.32);
      filter: blur(4px);
    }

    .toolbox h2 {
      position: relative;
      font-size: 28px;
      line-height: 1.25;
      letter-spacing: -.03em;
      margin-bottom: 12px;
    }

    .toolbox p {
      position: relative;
      color: rgba(255,255,255,.74);
    }

    .toolbox-actions {
      position: relative;
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 22px;
    }

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

    .material-card {
      min-height: 188px;
      padding: 22px;
      border-radius: 24px;
      background: #fff;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
      transition: var(--ease);
    }

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

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 10px;
      border-radius: 999px;
      background: var(--accent-soft);
      color: #0f766e;
      font-size: 12px;
      font-weight: 900;
      margin-bottom: 14px;
    }

    .material-card h3 {
      font-size: 19px;
      margin-bottom: 8px;
    }

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

    .topic-strip {
      padding: 64px 0;
      background: #fff;
    }

    .topic-row {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 22px;
    }

    .topic-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 11px 15px;
      border-radius: 999px;
      background: var(--surface-2);
      border: 1px solid var(--border);
      color: var(--muted);
      font-size: 14px;
      font-weight: 800;
      transition: var(--ease);
    }

    .topic-tag:hover {
      color: var(--primary);
      border-color: rgba(37,99,235,.28);
      background: #fff;
      transform: translateY(-2px);
      box-shadow: var(--shadow-sm);
    }

    .hot-list-wrap {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
      align-items: stretch;
    }

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

    .rank-item {
      display: grid;
      grid-template-columns: 54px 1fr auto;
      gap: 16px;
      align-items: center;
      padding: 18px;
      border-radius: 22px;
      background: #fff;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
      transition: var(--ease);
    }

    .rank-item:hover {
      transform: translateX(4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(37,99,235,.26);
    }

    .rank-num {
      width: 44px;
      height: 44px;
      display: grid;
      place-items: center;
      border-radius: 16px;
      background: var(--primary-soft);
      color: var(--primary);
      font-weight: 950;
    }

    .rank-item h3 {
      font-size: 17px;
      margin-bottom: 4px;
    }

    .rank-item p {
      color: var(--muted);
      font-size: 14px;
      line-height: 1.6;
    }

    .mini-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 36px;
      padding: 0 12px;
      border-radius: 999px;
      background: #f1f5f9;
      color: var(--primary);
      font-weight: 900;
      font-size: 13px;
      transition: var(--ease);
      white-space: nowrap;
    }

    .mini-btn:hover {
      background: var(--primary);
      color: #fff;
    }

    .proof-card {
      padding: 28px;
      border-radius: var(--radius-lg);
      background:
        linear-gradient(135deg, rgba(37,99,235,.10), rgba(20,184,166,.10)),
        #fff;
      border: 1px solid rgba(37,99,235,.16);
      box-shadow: var(--shadow-md);
    }

    .proof-card h3 {
      font-size: 26px;
      line-height: 1.25;
      letter-spacing: -.03em;
      margin-bottom: 12px;
    }

    .proof-card p {
      color: var(--muted);
      margin-bottom: 20px;
    }

    .proof-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 12px;
    }

    .proof-grid div {
      padding: 16px;
      border-radius: 18px;
      background: rgba(255,255,255,.74);
      border: 1px solid rgba(255,255,255,.86);
    }

    .proof-grid strong {
      display: block;
      font-size: 24px;
      color: var(--primary);
      line-height: 1.1;
    }

    .proof-grid span {
      display: block;
      margin-top: 6px;
      color: var(--muted);
      font-size: 13px;
    }

    .steps {
      background: #0f172a;
      color: #fff;
      position: relative;
    }

    .steps::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        radial-gradient(circle at 20% 20%, rgba(37,99,235,.32), transparent 30%),
        radial-gradient(circle at 80% 80%, rgba(20,184,166,.22), transparent 34%);
      pointer-events: none;
    }

    .steps .container {
      position: relative;
      z-index: 1;
    }

    .steps .section-desc {
      color: rgba(255,255,255,.72);
    }

    .step-line {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 18px;
      margin-top: 30px;
    }

    .step-card {
      position: relative;
      padding: 26px;
      border-radius: 26px;
      background: rgba(255,255,255,.09);
      border: 1px solid rgba(255,255,255,.13);
      backdrop-filter: blur(12px);
      transition: var(--ease);
    }

    .step-card:hover {
      background: rgba(255,255,255,.13);
      transform: translateY(-4px);
    }

    .step-index {
      width: 44px;
      height: 44px;
      display: grid;
      place-items: center;
      border-radius: 15px;
      background: #fff;
      color: var(--primary);
      font-weight: 950;
      margin-bottom: 18px;
    }

    .step-card h3 {
      font-size: 20px;
      margin-bottom: 8px;
    }

    .step-card p {
      color: rgba(255,255,255,.72);
      font-size: 14px;
    }

    .news-section {
      background: var(--surface);
    }

    .news-layout {
      display: grid;
      grid-template-columns: 1.2fr .8fr;
      gap: 26px;
      align-items: start;
    }

    .news-list {
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border);
      background: #fff;
      box-shadow: var(--shadow-sm);
    }

    .news-item {
      display: grid;
      grid-template-columns: 120px 1fr;
      gap: 18px;
      padding: 20px;
      border-bottom: 1px solid var(--border);
      transition: var(--ease);
    }

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

    .news-item:hover {
      background: var(--surface-2);
    }

    .news-date {
      display: flex;
      flex-direction: column;
      justify-content: center;
      min-height: 74px;
      padding: 12px;
      border-radius: 18px;
      background: var(--bg-soft);
      color: var(--primary);
      text-align: center;
      font-weight: 900;
    }

    .news-date span {
      font-size: 12px;
      color: var(--muted);
      font-weight: 800;
      margin-top: 4px;
    }

    .news-item h3 {
      font-size: 18px;
      margin-bottom: 6px;
    }

    .news-item h3 a {
      transition: var(--ease);
    }

    .news-item h3 a:hover {
      color: var(--primary);
    }

    .news-item p {
      color: var(--muted);
      font-size: 14px;
      line-height: 1.7;
    }

    .recommend-panel {
      padding: 24px;
      border-radius: var(--radius-lg);
      background: #fff;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-md);
    }

    .recommend-panel h3 {
      font-size: 22px;
      margin-bottom: 12px;
    }

    .recommend-panel p {
      color: var(--muted);
      font-size: 14px;
      margin-bottom: 18px;
    }

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

    .recommend-links a {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding: 14px;
      border-radius: 16px;
      background: var(--surface-2);
      border: 1px solid var(--border);
      color: var(--muted);
      font-size: 14px;
      font-weight: 800;
      transition: var(--ease);
    }

    .recommend-links a:hover {
      color: var(--primary);
      background: #fff;
      transform: translateX(3px);
      box-shadow: var(--shadow-sm);
    }

    .faq-grid {
      display: grid;
      grid-template-columns: .78fr 1.22fr;
      gap: 28px;
      align-items: start;
    }

    .faq-aside {
      padding: 28px;
      border-radius: var(--radius-lg);
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: #fff;
      box-shadow: var(--shadow-lg);
    }

    .faq-aside h2 {
      font-size: 30px;
      line-height: 1.25;
      margin-bottom: 12px;
      letter-spacing: -.03em;
    }

    .faq-aside p {
      color: rgba(255,255,255,.78);
      margin-bottom: 20px;
    }

    .faq-list {
      display: grid;
      gap: 12px;
    }

    .faq-item {
      padding: 20px;
      border-radius: 22px;
      background: #fff;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
    }

    .faq-item h3 {
      font-size: 17px;
      margin-bottom: 8px;
    }

    .faq-item p {
      color: var(--muted);
      font-size: 14px;
      line-height: 1.85;
    }

    .join {
      padding-bottom: 94px;
    }

    .join-card {
      position: relative;
      overflow: hidden;
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 28px;
      align-items: center;
      padding: 38px;
      border-radius: var(--radius-xl);
      background:
        radial-gradient(circle at 15% 20%, rgba(255,255,255,.28), transparent 34%),
        linear-gradient(135deg, #1e3a8a, #0f172a);
      color: #fff;
      box-shadow: var(--shadow-lg);
    }

    .join-card::after {
      content: "";
      position: absolute;
      right: -120px;
      top: -120px;
      width: 300px;
      height: 300px;
      border-radius: 50%;
      background: rgba(20,184,166,.26);
    }

    .join-card h2 {
      position: relative;
      z-index: 1;
      font-size: clamp(26px, 3vw, 42px);
      line-height: 1.2;
      letter-spacing: -.04em;
      margin-bottom: 12px;
    }

    .join-card p {
      position: relative;
      z-index: 1;
      max-width: 730px;
      color: rgba(255,255,255,.76);
    }

    .join-actions {
      position: relative;
      z-index: 1;
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
      justify-content: flex-end;
    }

    .floating-cta {
      position: fixed;
      left: 50%;
      bottom: 18px;
      transform: translateX(-50%);
      z-index: 60;
      width: min(780px, calc(100% - 28px));
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      padding: 12px 14px 12px 18px;
      border-radius: 999px;
      background: rgba(15, 23, 42, .92);
      color: #fff;
      border: 1px solid rgba(255,255,255,.14);
      box-shadow: 0 18px 46px rgba(15, 23, 42, .28);
      backdrop-filter: blur(16px);
    }

    .floating-cta p {
      font-size: 14px;
      font-weight: 800;
      color: rgba(255,255,255,.88);
    }

    .floating-cta a {
      flex: 0 0 auto;
      min-height: 38px;
      padding: 0 14px;
      border-radius: 999px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: #fff;
      color: #0f172a;
      font-size: 13px;
      font-weight: 950;
      transition: var(--ease);
    }

    .floating-cta a:hover {
      transform: translateY(-2px);
    }

    .site-footer {
      background: #020617;
      color: rgba(255,255,255,.72);
      padding: 56px 0 92px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 34px;
      align-items: start;
    }

    .footer-brand {
      display: flex;
      align-items: center;
      gap: 12px;
      color: #fff;
      font-weight: 950;
      font-size: 18px;
      margin-bottom: 14px;
    }

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

    .footer-desc {
      max-width: 620px;
      color: rgba(255,255,255,.62);
      font-size: 14px;
      line-height: 1.9;
    }

    .footer-links {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: flex-end;
    }

    .footer-links a {
      padding: 9px 12px;
      border-radius: 999px;
      background: rgba(255,255,255,.06);
      border: 1px solid rgba(255,255,255,.08);
      color: rgba(255,255,255,.72);
      font-size: 13px;
      font-weight: 800;
      transition: var(--ease);
    }

    .footer-links a:hover {
      color: #fff;
      background: rgba(255,255,255,.12);
    }

    .copyright {
      margin-top: 34px;
      padding-top: 22px;
      border-top: 1px solid rgba(255,255,255,.10);
      display: flex;
      justify-content: space-between;
      gap: 20px;
      flex-wrap: wrap;
      font-size: 13px;
      color: rgba(255,255,255,.48);
    }

    a:focus-visible, button:focus-visible, input:focus-visible {
      outline: 3px solid rgba(37, 99, 235, .35);
      outline-offset: 3px;
    }

    @media (max-width: 1024px) {
      .nav-cta {
        display: none;
      }

      .hero-content,
      .commission-grid,
      .material-layout,
      .hot-list-wrap,
      .news-layout,
      .faq-grid,
      .footer-grid {
        grid-template-columns: 1fr;
      }

      .toolbox {
        position: relative;
        top: auto;
      }

      .join-card {
        grid-template-columns: 1fr;
      }

      .join-actions {
        justify-content: flex-start;
      }
    }

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

      .nav-wrap {
        height: auto;
        min-height: 70px;
        flex-wrap: wrap;
        padding: 12px 0;
      }

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

      .nav-links {
        order: 3;
        width: 100%;
        justify-content: flex-start;
        overflow-x: auto;
        border-radius: 20px;
      }

      .brand-text {
        font-size: 16px;
        max-width: 230px;
        overflow: hidden;
        text-overflow: ellipsis;
      }

      .hero {
        padding-top: 20px;
      }

      .hero-stage {
        border-radius: 28px;
        min-height: auto;
      }

      .series-nav {
        position: relative;
        left: auto;
        right: auto;
        top: auto;
        margin: 14px;
        border-radius: 22px;
        align-items: flex-start;
        flex-direction: column;
      }

      .series-note {
        padding-left: 4px;
      }

      .hero-content {
        padding: 26px 22px 28px;
        gap: 26px;
      }

      .hero-desc {
        font-size: 16px;
      }

      .hero-metrics,
      .reward-row,
      .step-line,
      .proof-grid {
        grid-template-columns: 1fr;
      }

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

      .section-head {
        align-items: flex-start;
        flex-direction: column;
      }

      section {
        padding: 54px 0;
      }

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

      .rank-item .mini-btn {
        grid-column: 2;
        justify-self: start;
      }

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

      .news-date {
        align-items: flex-start;
        text-align: left;
      }
    }

    @media (max-width: 520px) {
      .hero-actions,
      .toolbox-actions,
      .join-actions {
        flex-direction: column;
        align-items: stretch;
      }

      .btn {
        width: 100%;
      }

      .highlight-card,
      .toolbox,
      .proof-card,
      .faq-aside,
      .join-card {
        padding: 22px;
        border-radius: 24px;
      }

      .floating-cta {
        align-items: stretch;
        flex-direction: column;
        border-radius: 22px;
      }

      .floating-cta a {
        width: 100%;
      }

      .site-footer {
        padding-bottom: 130px;
      }

      .footer-links {
        justify-content: flex-start;
      }
    }

/* roulang page: category2 */
:root{
      --bg:#f5fbf9;
      --bg-soft:#eaf7f3;
      --surface:#ffffff;
      --surface-2:#f8fffd;
      --text:#10201d;
      --muted:#60746f;
      --muted-2:#7b8d89;
      --primary:#0f766e;
      --primary-2:#14b8a6;
      --primary-dark:#0b5d56;
      --accent:#f59e0b;
      --accent-soft:#fff7e6;
      --danger:#dc2626;
      --line:#dbe9e5;
      --line-strong:#c4d8d2;
      --shadow-sm:0 8px 22px rgba(15,118,110,.08);
      --shadow:0 18px 55px rgba(15,118,110,.14);
      --shadow-strong:0 28px 80px rgba(12,74,68,.18);
      --radius-sm:12px;
      --radius:20px;
      --radius-lg:30px;
      --container:1160px;
      --ease:.24s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;
      line-height:1.75;
      color:var(--text);
      background:
        radial-gradient(circle at 10% 0%, rgba(20,184,166,.16), transparent 30%),
        radial-gradient(circle at 88% 12%, rgba(245,158,11,.12), transparent 28%),
        linear-gradient(180deg,#f7fffd 0%, var(--bg) 42%, #ffffff 100%);
      min-height:100vh;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none}
    img,svg{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(20,184,166,.22)}
    .container{
      width:min(var(--container), calc(100% - 40px));
      margin:0 auto;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      backdrop-filter:blur(18px);
      background:rgba(255,255,255,.84);
      border-bottom:1px solid rgba(219,233,229,.82);
      box-shadow:0 10px 28px rgba(15,32,29,.04);
    }
    .nav-wrap{
      min-height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .brand,.footer-brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      font-weight:900;
      letter-spacing:-.02em;
    }
    .brand-mark{
      width:40px;
      height:40px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      border-radius:14px;
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      box-shadow:0 10px 24px rgba(15,118,110,.22);
      font-weight:900;
    }
    .brand-text{font-size:18px;white-space:nowrap}
    .nav-links{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      padding:6px;
      background:rgba(234,247,243,.72);
      border:1px solid rgba(219,233,229,.88);
      border-radius:999px;
    }
    .nav-links a{
      position:relative;
      display:inline-flex;
      align-items:center;
      min-height:40px;
      padding:0 16px;
      border-radius:999px;
      color:var(--muted);
      font-weight:800;
      font-size:14px;
      transition:background var(--ease), color var(--ease), transform var(--ease), box-shadow var(--ease);
      white-space:nowrap;
    }
    .nav-links a:hover{
      color:var(--primary-dark);
      background:rgba(255,255,255,.72);
      transform:translateY(-1px);
    }
    .nav-links a.active{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      box-shadow:0 10px 22px rgba(15,118,110,.18);
    }
    .nav-cta{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:42px;
      padding:0 18px;
      border-radius:999px;
      background:var(--text);
      color:#fff;
      font-weight:900;
      font-size:14px;
      box-shadow:0 14px 28px rgba(16,32,29,.14);
      transition:transform var(--ease), box-shadow var(--ease), background var(--ease);
      white-space:nowrap;
    }
    .nav-cta:hover{transform:translateY(-2px);box-shadow:0 20px 34px rgba(16,32,29,.18);background:#163c36}
    .menu-btn{
      display:none;
      width:44px;
      height:44px;
      border:1px solid var(--line);
      border-radius:14px;
      background:#fff;
      color:var(--text);
      font-size:20px;
      box-shadow:var(--shadow-sm);
    }
    .menu-btn:focus-visible,.btn:focus-visible,.nav-links a:focus-visible,.nav-cta:focus-visible,input:focus-visible{
      outline:3px solid rgba(20,184,166,.34);
      outline-offset:3px;
    }

    main{overflow:hidden}
    .hero{
      padding:72px 0 46px;
    }
    .hero-layout{
      display:grid;
      grid-template-columns:minmax(0,1.02fr) minmax(360px,.78fr);
      gap:34px;
      align-items:stretch;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border:1px solid rgba(15,118,110,.18);
      border-radius:999px;
      background:rgba(255,255,255,.78);
      color:var(--primary-dark);
      font-weight:900;
      font-size:13px;
      box-shadow:var(--shadow-sm);
    }
    .eyebrow::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--primary-2);
      box-shadow:0 0 0 5px rgba(20,184,166,.12);
    }
    h1{
      margin:18px 0 16px;
      font-size:clamp(34px,5vw,62px);
      line-height:1.08;
      letter-spacing:-.06em;
      max-width:780px;
    }
    .hero-sub{
      margin:0;
      max-width:760px;
      color:var(--muted);
      font-size:18px;
      line-height:1.9;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:14px;
      margin-top:28px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:48px;
      padding:0 20px;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:900;
      transition:transform var(--ease), box-shadow var(--ease), background var(--ease), border-color var(--ease), color var(--ease);
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      box-shadow:0 16px 34px rgba(15,118,110,.23);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 22px 44px rgba(15,118,110,.28)}
    .btn-secondary{
      background:#fff;
      border-color:var(--line);
      color:var(--text);
      box-shadow:var(--shadow-sm);
    }
    .btn-secondary:hover{transform:translateY(-2px);border-color:var(--primary-2);color:var(--primary-dark)}
    .btn-ghost{
      color:var(--primary-dark);
      background:rgba(234,247,243,.8);
      border-color:rgba(15,118,110,.14);
    }
    .btn-ghost:hover{background:#fff;box-shadow:var(--shadow-sm);transform:translateY(-2px)}
    .mini-note{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:22px;
      color:var(--muted);
      font-size:14px;
    }
    .mini-note span{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:6px 10px;
      border-radius:999px;
      background:rgba(255,255,255,.72);
      border:1px solid var(--line);
    }
    .coupon-wall{
      position:relative;
      border-radius:var(--radius-lg);
      padding:18px;
      background:
        linear-gradient(135deg, rgba(15,118,110,.92), rgba(20,184,166,.78)),
        radial-gradient(circle at 20% 20%, rgba(255,255,255,.22), transparent 28%);
      box-shadow:var(--shadow-strong);
      color:#fff;
      overflow:hidden;
    }
    .coupon-wall::before,.coupon-wall::after{
      content:"";
      position:absolute;
      border-radius:999px;
      background:rgba(255,255,255,.16);
    }
    .coupon-wall::before{width:180px;height:180px;right:-72px;top:-70px}
    .coupon-wall::after{width:110px;height:110px;left:-42px;bottom:34px}
    .coupon-head{
      position:relative;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      margin-bottom:14px;
      z-index:1;
    }
    .coupon-head strong{font-size:18px}
    .coupon-badge{
      display:inline-flex;
      align-items:center;
      padding:6px 10px;
      border-radius:999px;
      background:rgba(255,255,255,.18);
      border:1px solid rgba(255,255,255,.28);
      font-size:13px;
      font-weight:900;
      white-space:nowrap;
    }
    .main-coupon{
      position:relative;
      z-index:1;
      padding:24px;
      border-radius:24px;
      background:#fff;
      color:var(--text);
      box-shadow:0 20px 46px rgba(4,47,43,.18);
    }
    .main-coupon::before,.main-coupon::after{
      content:"";
      position:absolute;
      top:50%;
      width:24px;
      height:24px;
      border-radius:50%;
      background:linear-gradient(135deg, rgba(15,118,110,.92), rgba(20,184,166,.78));
      transform:translateY(-50%);
    }
    .main-coupon::before{left:-12px}
    .main-coupon::after{right:-12px}
    .coupon-label{
      color:var(--muted);
      font-weight:900;
      font-size:13px;
    }
    .coupon-title{
      margin:8px 0 8px;
      font-size:30px;
      line-height:1.16;
      letter-spacing:-.04em;
      font-weight:950;
    }
    .coupon-text{
      margin:0 0 18px;
      color:var(--muted);
      font-size:15px;
    }
    .coupon-code{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:12px;
      border:1px dashed var(--primary-2);
      border-radius:18px;
      background:var(--bg-soft);
      margin-bottom:16px;
    }
    .coupon-code span{font-weight:950;color:var(--primary-dark)}
    .coupon-code small{color:var(--muted)}
    .coupon-small-grid{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:12px;
      margin-top:14px;
    }
    .small-ticket{
      padding:14px;
      border-radius:18px;
      background:rgba(255,255,255,.14);
      border:1px solid rgba(255,255,255,.22);
      backdrop-filter:blur(10px);
    }
    .small-ticket b{display:block;font-size:15px}
    .small-ticket span{display:block;color:rgba(255,255,255,.78);font-size:13px;margin-top:2px}

    .section{padding:58px 0}
    .section.alt{
      background:linear-gradient(180deg, rgba(234,247,243,.48), rgba(255,255,255,.72));
      border-top:1px solid rgba(219,233,229,.72);
      border-bottom:1px solid rgba(219,233,229,.72);
    }
    .section-head{
      display:flex;
      justify-content:space-between;
      align-items:flex-end;
      gap:28px;
      margin-bottom:26px;
    }
    .section-kicker{
      margin:0 0 8px;
      color:var(--primary-dark);
      font-weight:950;
      font-size:14px;
    }
    h2{
      margin:0;
      font-size:clamp(26px,3.4vw,42px);
      line-height:1.18;
      letter-spacing:-.045em;
    }
    .section-summary{
      margin:0;
      max-width:520px;
      color:var(--muted);
      font-size:16px;
    }
    .two-col{
      display:grid;
      grid-template-columns:.82fr 1.18fr;
      gap:24px;
      align-items:start;
    }
    .info-panel{
      padding:24px;
      border-radius:var(--radius);
      background:var(--surface);
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
    }
    .info-panel.dark{
      color:#fff;
      background:linear-gradient(145deg,#10201d,#0f766e);
      border-color:rgba(255,255,255,.12);
      box-shadow:var(--shadow);
    }
    .info-panel h3{margin:0 0 12px;font-size:24px;line-height:1.25}
    .info-panel p{margin:0;color:var(--muted)}
    .info-panel.dark p{color:rgba(255,255,255,.78)}
    .rating-list{
      display:grid;
      gap:14px;
    }
    .rating-item{
      display:grid;
      grid-template-columns:64px 1fr auto;
      gap:16px;
      align-items:center;
      padding:18px;
      border-radius:20px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:0 8px 22px rgba(15,32,29,.05);
      transition:transform var(--ease), box-shadow var(--ease), border-color var(--ease);
    }
    .rating-item:hover{
      transform:translateY(-3px);
      border-color:rgba(20,184,166,.42);
      box-shadow:var(--shadow);
    }
    .rating-icon{
      width:54px;
      height:54px;
      display:grid;
      place-items:center;
      border-radius:18px;
      background:var(--bg-soft);
      color:var(--primary-dark);
      font-weight:950;
      font-size:18px;
    }
    .rating-item h3{margin:0 0 4px;font-size:18px}
    .rating-item p{margin:0;color:var(--muted);font-size:14px}
    .risk-tag{
      display:inline-flex;
      align-items:center;
      padding:7px 10px;
      border-radius:999px;
      font-size:12px;
      font-weight:950;
      background:var(--accent-soft);
      color:#8a4b00;
      white-space:nowrap;
    }
    .risk-tag.high{background:#fff1f2;color:#be123c}
    .risk-tag.safe{background:#ecfdf5;color:#047857}

    .screen-wrap{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:22px;
      align-items:stretch;
    }
    .screen-card{
      position:relative;
      padding:22px;
      min-height:330px;
      border-radius:28px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
      overflow:hidden;
    }
    .screen-card.featured{
      background:linear-gradient(160deg,#ffffff 0%, #effbf8 60%, #fff7e6 100%);
    }
    .browser-bar{
      display:flex;
      align-items:center;
      gap:7px;
      padding-bottom:18px;
      border-bottom:1px solid var(--line);
    }
    .dot{width:10px;height:10px;border-radius:50%;background:var(--line-strong)}
    .dot:nth-child(1){background:#fb7185}.dot:nth-child(2){background:#fbbf24}.dot:nth-child(3){background:#34d399}
    .check-list{
      display:grid;
      gap:12px;
      margin:22px 0 0;
      padding:0;
      list-style:none;
    }
    .check-list li{
      display:flex;
      gap:10px;
      align-items:flex-start;
      padding:12px;
      border-radius:16px;
      background:rgba(255,255,255,.72);
      border:1px solid rgba(219,233,229,.78);
      color:var(--muted);
    }
    .check-list li::before{
      content:"✓";
      flex:0 0 24px;
      width:24px;
      height:24px;
      display:grid;
      place-items:center;
      border-radius:50%;
      color:#fff;
      background:var(--primary);
      font-weight:900;
      line-height:1;
    }
    .slider-dots{
      position:absolute;
      left:22px;
      right:22px;
      bottom:20px;
      display:flex;
      gap:8px;
    }
    .slider-dots span{
      height:8px;
      border-radius:999px;
      background:var(--line-strong);
      flex:1;
    }
    .slider-dots span.active{background:linear-gradient(90deg,var(--primary),var(--primary-2));flex:2}

    .requirements{
      display:grid;
      grid-template-columns:1.08fr .92fr;
      gap:24px;
    }
    .req-card{
      padding:24px;
      border-radius:var(--radius);
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
    }
    .req-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:12px;
      margin-top:18px;
    }
    .req-item{
      padding:16px;
      border-radius:16px;
      background:var(--surface-2);
      border:1px solid var(--line);
    }
    .req-item b{display:block;margin-bottom:4px}
    .req-item span{color:var(--muted);font-size:14px}
    .meter{
      display:grid;
      gap:12px;
      margin-top:18px;
    }
    .meter-row{
      display:grid;
      grid-template-columns:90px 1fr 48px;
      gap:12px;
      align-items:center;
      color:var(--muted);
      font-size:14px;
    }
    .bar{
      height:10px;
      background:var(--bg-soft);
      border-radius:999px;
      overflow:hidden;
    }
    .bar i{
      display:block;
      height:100%;
      border-radius:999px;
      background:linear-gradient(90deg,var(--primary),var(--primary-2));
    }

    .steps{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
      counter-reset:step;
    }
    .step{
      position:relative;
      padding:22px;
      border-radius:22px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
      counter-increment:step;
    }
    .step::before{
      content:"0" counter(step);
      display:inline-flex;
      align-items:center;
      justify-content:center;
      width:42px;
      height:42px;
      margin-bottom:18px;
      border-radius:15px;
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      font-weight:950;
      box-shadow:0 10px 22px rgba(15,118,110,.18);
    }
    .step h3{margin:0 0 8px;font-size:18px}
    .step p{margin:0;color:var(--muted);font-size:14px}

    .review-wall{
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:24px;
      align-items:stretch;
    }
    .quote-large{
      padding:30px;
      border-radius:28px;
      background:#10201d;
      color:#fff;
      box-shadow:var(--shadow-strong);
    }
    .quote-large .stars{color:#fbbf24;font-size:18px;letter-spacing:2px}
    .quote-large p{
      margin:18px 0 22px;
      font-size:22px;
      line-height:1.75;
      letter-spacing:-.02em;
    }
    .quote-large small{color:rgba(255,255,255,.7)}
    .review-list{
      display:grid;
      gap:14px;
    }
    .review-item{
      padding:18px;
      border-radius:20px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
    }
    .review-item b{display:block;margin-bottom:6px}
    .review-item p{margin:0;color:var(--muted);font-size:14px}

    .faq-wrap{
      display:grid;
      grid-template-columns:.72fr 1.28fr;
      gap:26px;
      align-items:start;
    }
    .faq-list{display:grid;gap:12px}
    details{
      background:#fff;
      border:1px solid var(--line);
      border-radius:18px;
      box-shadow:0 8px 20px rgba(15,32,29,.045);
      overflow:hidden;
    }
    summary{
      list-style:none;
      cursor:pointer;
      padding:18px 20px;
      font-weight:950;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
    }
    summary::-webkit-details-marker{display:none}
    summary::after{
      content:"+";
      flex:0 0 28px;
      width:28px;
      height:28px;
      display:grid;
      place-items:center;
      border-radius:50%;
      background:var(--bg-soft);
      color:var(--primary-dark);
      transition:transform var(--ease), background var(--ease);
    }
    details[open] summary::after{content:"–";background:var(--primary);color:#fff}
    details p{
      margin:0;
      padding:0 20px 20px;
      color:var(--muted);
    }

    .cta-panel{
      position:relative;
      display:grid;
      grid-template-columns:1fr auto;
      gap:24px;
      align-items:center;
      padding:34px;
      border-radius:32px;
      background:
        radial-gradient(circle at 8% 0%, rgba(255,255,255,.24), transparent 30%),
        linear-gradient(135deg,var(--primary-dark),var(--primary-2));
      color:#fff;
      box-shadow:var(--shadow-strong);
      overflow:hidden;
    }
    .cta-panel::after{
      content:"";
      position:absolute;
      width:260px;
      height:260px;
      right:-92px;
      bottom:-120px;
      border-radius:50%;
      background:rgba(255,255,255,.12);
    }
    .cta-panel h2{position:relative;z-index:1;color:#fff}
    .cta-panel p{position:relative;z-index:1;margin:12px 0 0;color:rgba(255,255,255,.8);max-width:680px}
    .download-buttons{
      position:relative;
      z-index:1;
      display:flex;
      flex-direction:column;
      gap:12px;
      min-width:250px;
    }
    .download-buttons .btn{
      width:100%;
      background:#fff;
      color:var(--primary-dark);
      border-color:rgba(255,255,255,.6);
    }
    .download-buttons .btn:hover{transform:translateY(-2px);box-shadow:0 18px 34px rgba(0,0,0,.16)}
    .download-buttons .btn.dark{
      background:rgba(16,32,29,.24);
      color:#fff;
      border-color:rgba(255,255,255,.24);
    }

    .site-footer{
      padding:52px 0 26px;
      background:#0d1c19;
      color:#fff;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:34px;
      align-items:start;
      padding-bottom:28px;
      border-bottom:1px solid rgba(255,255,255,.12);
    }
    .footer-brand{
      font-size:18px;
      margin-bottom:14px;
    }
    .footer-desc{
      margin:0;
      max-width:660px;
      color:rgba(255,255,255,.66);
      line-height:1.9;
    }
    .footer-links{
      display:flex;
      flex-wrap:wrap;
      justify-content:flex-end;
      gap:12px;
    }
    .footer-links a{
      display:inline-flex;
      align-items:center;
      min-height:38px;
      padding:0 13px;
      border-radius:999px;
      color:rgba(255,255,255,.72);
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.1);
      font-weight:800;
      font-size:14px;
      transition:background var(--ease), color var(--ease), transform var(--ease);
    }
    .footer-links a:hover{background:rgba(20,184,166,.22);color:#fff;transform:translateY(-1px)}
    .copyright{
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
      padding-top:22px;
      color:rgba(255,255,255,.58);
      font-size:13px;
    }

    @media (max-width:1024px){
      .nav-cta{display:none}
      .hero-layout,.two-col,.requirements,.review-wall,.faq-wrap{
        grid-template-columns:1fr;
      }
      .coupon-wall{max-width:720px}
      .steps{grid-template-columns:repeat(2,1fr)}
      .section-head{align-items:flex-start;flex-direction:column}
      .cta-panel{grid-template-columns:1fr}
      .download-buttons{min-width:0;flex-direction:row;flex-wrap:wrap}
      .download-buttons .btn{width:auto}
    }
    @media (max-width:768px){
      .container{width:min(100% - 28px, var(--container))}
      .nav-wrap{min-height:68px}
      .brand-text{font-size:16px}
      .menu-btn{display:inline-flex;align-items:center;justify-content:center}
      .nav-links{
        position:absolute;
        left:14px;
        right:14px;
        top:74px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        border-radius:22px;
        padding:10px;
        background:rgba(255,255,255,.96);
        box-shadow:var(--shadow);
      }
      .site-header.is-open .nav-links{display:flex}
      .nav-links a{justify-content:center}
      .hero{padding:48px 0 34px}
      .hero-actions{align-items:stretch}
      .btn{width:100%}
      .coupon-small-grid,.screen-wrap,.req-grid{
        grid-template-columns:1fr;
      }
      .rating-item{
        grid-template-columns:54px 1fr;
      }
      .risk-tag{
        grid-column:1 / -1;
        width:max-content;
      }
      .footer-grid{grid-template-columns:1fr}
      .footer-links{justify-content:flex-start}
    }
    @media (max-width:520px){
      body{line-height:1.7}
      .brand-mark{width:36px;height:36px;border-radius:12px}
      h1{font-size:34px;letter-spacing:-.045em}
      .hero-sub{font-size:16px}
      .section{padding:44px 0}
      .main-coupon{padding:20px}
      .coupon-title{font-size:25px}
      .steps{grid-template-columns:1fr}
      .screen-card{min-height:auto}
      .meter-row{grid-template-columns:78px 1fr 42px}
      .quote-large p{font-size:18px}
      .cta-panel{padding:24px;border-radius:24px}
      .download-buttons{flex-direction:column}
      .download-buttons .btn{width:100%}
      .copyright{flex-direction:column}
    }

/* roulang page: category1 */
:root {
      --bg: #f6f8fb;
      --surface: #ffffff;
      --surface-soft: #f1f5f9;
      --surface-dark: #0f172a;
      --primary: #2563eb;
      --primary-dark: #1d4ed8;
      --primary-soft: #dbeafe;
      --accent: #14b8a6;
      --accent-soft: #ccfbf1;
      --warning: #f59e0b;
      --danger: #ef4444;
      --text: #111827;
      --text-muted: #64748b;
      --text-light: #e5e7eb;
      --border: #e2e8f0;
      --border-strong: #cbd5e1;
      --radius-sm: 10px;
      --radius-md: 16px;
      --radius-lg: 24px;
      --radius-xl: 32px;
      --shadow-sm: 0 8px 24px rgba(15, 23, 42, 0.06);
      --shadow-md: 0 16px 45px rgba(15, 23, 42, 0.10);
      --shadow-lg: 0 24px 70px rgba(15, 23, 42, 0.16);
      --container: 1180px;
      --ease: all .22s ease;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      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 12% 4%, rgba(37, 99, 235, .10), transparent 32%),
        radial-gradient(circle at 88% 12%, rgba(20, 184, 166, .12), transparent 30%),
        var(--bg);
      line-height: 1.72;
      font-size: 16px;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

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

    button, input {
      font: inherit;
    }

    button {
      cursor: pointer;
      border: 0;
      background: none;
    }

    ::selection {
      background: var(--primary);
      color: #fff;
    }

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(255, 255, 255, .86);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(226, 232, 240, .9);
    }

    .nav-wrap {
      min-height: 76px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 22px;
    }

    .brand,
    .footer-brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      font-weight: 900;
      letter-spacing: -0.02em;
      color: var(--surface-dark);
      white-space: nowrap;
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      border-radius: 14px;
      display: inline-grid;
      place-items: center;
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      box-shadow: 0 12px 28px rgba(37, 99, 235, .28);
      font-weight: 900;
    }

    .brand-text {
      font-size: 18px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 6px;
      border: 1px solid rgba(226, 232, 240, .92);
      background: rgba(248, 250, 252, .78);
      border-radius: 999px;
    }

    .nav-links a {
      padding: 10px 16px;
      color: var(--text-muted);
      border-radius: 999px;
      font-size: 14px;
      font-weight: 700;
      transition: var(--ease);
    }

    .nav-links a:hover,
    .nav-links a:focus {
      color: var(--primary);
      background: #fff;
      box-shadow: var(--shadow-sm);
      outline: none;
    }

    .nav-links a.active {
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      box-shadow: 0 10px 24px rgba(37, 99, 235, .22);
    }

    .nav-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 42px;
      padding: 0 18px;
      border-radius: 999px;
      color: #fff;
      background: var(--surface-dark);
      font-size: 14px;
      font-weight: 800;
      transition: var(--ease);
      box-shadow: 0 12px 24px rgba(15, 23, 42, .16);
      white-space: nowrap;
    }

    .nav-cta:hover,
    .nav-cta:focus {
      transform: translateY(-2px);
      box-shadow: var(--shadow-md);
      outline: 3px solid rgba(37, 99, 235, .18);
    }

    .menu-btn {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: 14px;
      color: var(--surface-dark);
      background: var(--surface-soft);
      border: 1px solid var(--border);
      font-size: 20px;
    }

    main {
      display: block;
    }

    .section {
      padding: 78px 0;
    }

    .section-tight {
      padding: 56px 0;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 12px;
      border-radius: 999px;
      color: var(--primary-dark);
      background: var(--primary-soft);
      font-size: 13px;
      font-weight: 900;
      letter-spacing: .02em;
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 999px;
      background: var(--accent);
      box-shadow: 0 0 0 6px rgba(20, 184, 166, .12);
    }

    .hero {
      padding: 70px 0 48px;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.05fr) minmax(340px, .95fr);
      gap: 34px;
      align-items: stretch;
    }

    .hero-copy {
      padding: 42px;
      border: 1px solid rgba(226, 232, 240, .88);
      border-radius: var(--radius-xl);
      background:
        linear-gradient(135deg, rgba(255, 255, 255, .94), rgba(255, 255, 255, .72)),
        radial-gradient(circle at top right, rgba(37, 99, 235, .14), transparent 34%);
      box-shadow: var(--shadow-md);
    }

    .hero h1 {
      margin-top: 18px;
      font-size: clamp(34px, 5vw, 58px);
      line-height: 1.12;
      letter-spacing: -0.05em;
      color: var(--surface-dark);
    }

    .hero-lead {
      margin-top: 20px;
      max-width: 720px;
      color: var(--text-muted);
      font-size: 18px;
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 48px;
      padding: 0 20px;
      border-radius: 14px;
      font-weight: 900;
      transition: var(--ease);
      border: 1px solid transparent;
    }

    .btn-primary {
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      box-shadow: 0 16px 30px rgba(37, 99, 235, .26);
    }

    .btn-primary:hover,
    .btn-primary:focus {
      transform: translateY(-2px);
      box-shadow: var(--shadow-lg);
      outline: 3px solid rgba(37, 99, 235, .20);
    }

    .btn-secondary {
      color: var(--surface-dark);
      background: #fff;
      border-color: var(--border);
      box-shadow: var(--shadow-sm);
    }

    .btn-secondary:hover,
    .btn-secondary:focus {
      color: var(--primary);
      border-color: rgba(37, 99, 235, .38);
      transform: translateY(-2px);
      outline: 3px solid rgba(37, 99, 235, .13);
    }

    .invite-panel {
      position: relative;
      padding: 30px;
      border-radius: var(--radius-xl);
      background: linear-gradient(150deg, #0f172a 0%, #172554 52%, #0f766e 100%);
      color: #fff;
      overflow: hidden;
      box-shadow: var(--shadow-lg);
      min-height: 100%;
    }

    .invite-panel::before,
    .invite-panel::after {
      content: "";
      position: absolute;
      border-radius: 999px;
      filter: blur(6px);
      opacity: .55;
    }

    .invite-panel::before {
      width: 180px;
      height: 180px;
      right: -48px;
      top: -52px;
      background: rgba(59, 130, 246, .45);
    }

    .invite-panel::after {
      width: 130px;
      height: 130px;
      left: -45px;
      bottom: -45px;
      background: rgba(20, 184, 166, .42);
    }

    .invite-inner {
      position: relative;
      z-index: 1;
    }

    .badge-line {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-bottom: 22px;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      padding: 7px 10px;
      border-radius: 999px;
      background: rgba(255, 255, 255, .12);
      border: 1px solid rgba(255, 255, 255, .18);
      color: rgba(255, 255, 255, .90);
      font-size: 13px;
      font-weight: 800;
    }

    .invite-title {
      font-size: 26px;
      line-height: 1.25;
      font-weight: 950;
      letter-spacing: -0.03em;
    }

    .invite-desc {
      margin-top: 12px;
      color: rgba(255, 255, 255, .76);
    }

    .reward-card {
      margin-top: 24px;
      padding: 18px;
      border-radius: 20px;
      background: rgba(255, 255, 255, .10);
      border: 1px solid rgba(255, 255, 255, .18);
    }

    .reward-row {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 12px;
      color: rgba(255, 255, 255, .90);
      font-weight: 800;
    }

    .progress {
      width: 100%;
      height: 12px;
      border-radius: 999px;
      background: rgba(255, 255, 255, .16);
      overflow: hidden;
    }

    .progress span {
      display: block;
      width: 68%;
      height: 100%;
      border-radius: inherit;
      background: linear-gradient(90deg, #38bdf8, #5eead4);
      box-shadow: 0 0 20px rgba(94, 234, 212, .45);
    }

    .invite-code {
      margin-top: 18px;
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 10px;
      align-items: center;
    }

    .code-box {
      padding: 13px 14px;
      border-radius: 14px;
      color: #e0f2fe;
      background: rgba(15, 23, 42, .42);
      border: 1px dashed rgba(255, 255, 255, .32);
      font-weight: 900;
      letter-spacing: .06em;
    }

    .mini-btn {
      min-height: 46px;
      padding: 0 16px;
      border-radius: 14px;
      color: var(--surface-dark);
      background: #fff;
      font-weight: 950;
      transition: var(--ease);
    }

    .mini-btn:hover,
    .mini-btn:focus {
      transform: translateY(-2px);
      outline: 3px solid rgba(255, 255, 255, .18);
    }

    .notice-strip {
      margin-top: 18px;
      display: flex;
      gap: 10px;
      color: rgba(255, 255, 255, .82);
      font-size: 14px;
    }

    .content-head {
      display: grid;
      grid-template-columns: .78fr 1.22fr;
      gap: 34px;
      align-items: end;
      margin-bottom: 32px;
    }

    .content-head h2 {
      margin-top: 14px;
      font-size: clamp(28px, 3.4vw, 42px);
      line-height: 1.18;
      letter-spacing: -0.04em;
      color: var(--surface-dark);
    }

    .content-head p {
      color: var(--text-muted);
      font-size: 17px;
    }

    .value-layout {
      display: grid;
      grid-template-columns: 340px minmax(0, 1fr);
      gap: 22px;
      align-items: start;
    }

    .value-side {
      position: sticky;
      top: 100px;
      padding: 24px;
      border-radius: var(--radius-lg);
      background: var(--surface-dark);
      color: #fff;
      box-shadow: var(--shadow-md);
    }

    .value-side h3 {
      font-size: 24px;
      line-height: 1.3;
    }

    .value-side p {
      margin-top: 12px;
      color: rgba(255, 255, 255, .72);
    }

    .side-list {
      margin-top: 22px;
      display: grid;
      gap: 12px;
      list-style: none;
    }

    .side-list li {
      display: flex;
      gap: 10px;
      align-items: flex-start;
      padding: 12px;
      border-radius: 14px;
      background: rgba(255, 255, 255, .08);
      border: 1px solid rgba(255, 255, 255, .12);
      color: rgba(255, 255, 255, .88);
      font-weight: 700;
    }

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

    .feature-card {
      padding: 24px;
      border-radius: var(--radius-lg);
      background: rgba(255, 255, 255, .92);
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
      transition: var(--ease);
    }

    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(37, 99, 235, .28);
    }

    .icon {
      width: 46px;
      height: 46px;
      border-radius: 16px;
      display: grid;
      place-items: center;
      color: var(--primary-dark);
      background: var(--primary-soft);
      font-size: 22px;
      font-weight: 900;
      margin-bottom: 16px;
    }

    .feature-card h3 {
      font-size: 20px;
      line-height: 1.32;
      color: var(--surface-dark);
    }

    .feature-card p {
      margin-top: 10px;
      color: var(--text-muted);
    }

    .screen-section {
      background: linear-gradient(180deg, rgba(255,255,255,.62), rgba(241,245,249,.96));
      border-top: 1px solid rgba(226,232,240,.72);
      border-bottom: 1px solid rgba(226,232,240,.72);
    }

    .screen-wrap {
      display: grid;
      grid-template-columns: minmax(0, .95fr) minmax(360px, 1.05fr);
      gap: 28px;
      align-items: center;
    }

    .screen-copy h2 {
      font-size: clamp(28px, 3.4vw, 44px);
      line-height: 1.16;
      letter-spacing: -0.04em;
      color: var(--surface-dark);
      margin-top: 14px;
    }

    .screen-copy p {
      margin-top: 16px;
      color: var(--text-muted);
      font-size: 17px;
    }

    .screen-tabs {
      margin-top: 24px;
      display: grid;
      gap: 12px;
    }

    .screen-tab {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      padding: 16px;
      border-radius: 18px;
      border: 1px solid var(--border);
      background: rgba(255,255,255,.82);
      box-shadow: var(--shadow-sm);
      transition: var(--ease);
    }

    .screen-tab:hover {
      transform: translateX(4px);
      border-color: rgba(37,99,235,.32);
    }

    .tab-num {
      flex: 0 0 auto;
      width: 34px;
      height: 34px;
      border-radius: 12px;
      display: grid;
      place-items: center;
      background: var(--surface-dark);
      color: #fff;
      font-weight: 950;
      font-size: 13px;
    }

    .screen-tab strong {
      display: block;
      color: var(--surface-dark);
      line-height: 1.35;
    }

    .screen-tab span {
      display: block;
      margin-top: 4px;
      color: var(--text-muted);
      font-size: 14px;
    }

    .mock-slider {
      position: relative;
      padding: 22px;
      border-radius: var(--radius-xl);
      background: #fff;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-lg);
      overflow: hidden;
    }

    .mock-slider::before {
      content: "";
      position: absolute;
      inset: 0;
      background: radial-gradient(circle at 80% 0%, rgba(37,99,235,.12), transparent 34%);
      pointer-events: none;
    }

    .mock-window {
      position: relative;
      border-radius: 24px;
      overflow: hidden;
      border: 1px solid var(--border);
      background: #f8fafc;
    }

    .window-top {
      height: 48px;
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 0 16px;
      background: #fff;
      border-bottom: 1px solid var(--border);
    }

    .dot {
      width: 10px;
      height: 10px;
      border-radius: 999px;
      background: var(--border-strong);
    }

    .dot:nth-child(1) { background: #ef4444; }
    .dot:nth-child(2) { background: #f59e0b; }
    .dot:nth-child(3) { background: #22c55e; }

    .window-body {
      padding: 22px;
      display: grid;
      gap: 16px;
    }

    .check-row {
      display: grid;
      grid-template-columns: auto 1fr auto;
      align-items: center;
      gap: 12px;
      padding: 16px;
      border-radius: 18px;
      background: #fff;
      border: 1px solid var(--border);
    }

    .check-icon {
      width: 34px;
      height: 34px;
      border-radius: 12px;
      display: grid;
      place-items: center;
      background: var(--accent-soft);
      color: #0f766e;
      font-weight: 950;
    }

    .check-row strong {
      display: block;
      color: var(--surface-dark);
      line-height: 1.25;
    }

    .check-row small {
      display: block;
      color: var(--text-muted);
      margin-top: 3px;
    }

    .status {
      padding: 6px 10px;
      border-radius: 999px;
      font-size: 12px;
      font-weight: 900;
      color: #0f766e;
      background: var(--accent-soft);
      white-space: nowrap;
    }

    .system-grid {
      display: grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 22px;
      align-items: stretch;
    }

    .requirements-card,
    .download-card {
      padding: 28px;
      border-radius: var(--radius-lg);
      background: #fff;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
    }

    .requirements-card h2,
    .download-card h2 {
      font-size: 28px;
      line-height: 1.22;
      color: var(--surface-dark);
    }

    .requirements-card p,
    .download-card p {
      margin-top: 12px;
      color: var(--text-muted);
    }

    .req-list {
      margin-top: 22px;
      display: grid;
      gap: 12px;
      list-style: none;
    }

    .req-list li {
      display: grid;
      grid-template-columns: 140px 1fr;
      gap: 14px;
      padding: 14px 0;
      border-bottom: 1px solid var(--border);
    }

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

    .req-list b {
      color: var(--surface-dark);
    }

    .req-list span {
      color: var(--text-muted);
    }

    .download-buttons {
      margin-top: 24px;
      display: grid;
      gap: 12px;
    }

    .download-option {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 16px;
      border-radius: 18px;
      border: 1px solid var(--border);
      background: var(--surface-soft);
      transition: var(--ease);
    }

    .download-option:hover,
    .download-option:focus-within {
      background: #fff;
      border-color: rgba(37,99,235,.32);
      box-shadow: var(--shadow-sm);
      transform: translateY(-2px);
    }

    .download-option strong {
      display: block;
      color: var(--surface-dark);
    }

    .download-option span {
      color: var(--text-muted);
      font-size: 14px;
    }

    .download-option a {
      flex: 0 0 auto;
      padding: 10px 14px;
      border-radius: 12px;
      background: var(--surface-dark);
      color: #fff;
      font-size: 14px;
      font-weight: 900;
      transition: var(--ease);
    }

    .download-option a:hover,
    .download-option a:focus {
      background: var(--primary);
      outline: 3px solid rgba(37,99,235,.18);
    }

    .review-wall {
      background: var(--surface-dark);
      color: #fff;
    }

    .review-wall .content-head h2 {
      color: #fff;
    }

    .review-wall .content-head p {
      color: rgba(255,255,255,.68);
    }

    .review-grid {
      display: grid;
      grid-template-columns: 1.2fr .8fr;
      gap: 22px;
      align-items: stretch;
    }

    .review-large,
    .review-stack .review-item {
      border-radius: var(--radius-lg);
      background: rgba(255,255,255,.08);
      border: 1px solid rgba(255,255,255,.12);
      box-shadow: 0 16px 48px rgba(0,0,0,.16);
    }

    .review-large {
      padding: 30px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      min-height: 320px;
    }

    .quote {
      font-size: 24px;
      line-height: 1.55;
      font-weight: 800;
      letter-spacing: -0.02em;
    }

    .review-meta {
      margin-top: 24px;
      display: flex;
      align-items: center;
      gap: 12px;
      color: rgba(255,255,255,.72);
    }

    .avatar {
      width: 42px;
      height: 42px;
      border-radius: 999px;
      display: grid;
      place-items: center;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: #fff;
      font-weight: 950;
    }

    .review-stack {
      display: grid;
      gap: 16px;
    }

    .review-item {
      padding: 22px;
    }

    .review-item p {
      color: rgba(255,255,255,.78);
    }

    .stars {
      color: #fbbf24;
      letter-spacing: .08em;
      margin-bottom: 10px;
    }

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

    .flow-step {
      position: relative;
      padding: 24px;
      border-radius: var(--radius-lg);
      background: #fff;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
      min-height: 210px;
    }

    .flow-step::after {
      content: "";
      position: absolute;
      top: 42px;
      right: -16px;
      width: 16px;
      height: 2px;
      background: var(--border-strong);
    }

    .flow-step:last-child::after {
      display: none;
    }

    .flow-step .step-num {
      width: 42px;
      height: 42px;
      border-radius: 15px;
      display: grid;
      place-items: center;
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      font-weight: 950;
      margin-bottom: 16px;
    }

    .flow-step h3 {
      color: var(--surface-dark);
      font-size: 18px;
      line-height: 1.35;
    }

    .flow-step p {
      margin-top: 10px;
      color: var(--text-muted);
      font-size: 15px;
    }

    .faq-wrap {
      display: grid;
      grid-template-columns: 360px minmax(0, 1fr);
      gap: 28px;
      align-items: start;
    }

    .faq-intro {
      padding: 28px;
      border-radius: var(--radius-lg);
      background: linear-gradient(135deg, var(--primary-soft), #fff);
      border: 1px solid var(--border);
    }

    .faq-intro h2 {
      font-size: 30px;
      line-height: 1.22;
      color: var(--surface-dark);
    }

    .faq-intro p {
      margin-top: 12px;
      color: var(--text-muted);
    }

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

    .faq-item {
      border-radius: 18px;
      background: #fff;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
      overflow: hidden;
    }

    .faq-question {
      width: 100%;
      padding: 18px 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      color: var(--surface-dark);
      text-align: left;
      font-weight: 900;
    }

    .faq-question:hover,
    .faq-question:focus {
      color: var(--primary);
      outline: none;
    }

    .faq-answer {
      padding: 0 20px 18px;
      color: var(--text-muted);
      display: block;
    }

    .cta-panel {
      position: relative;
      overflow: hidden;
      border-radius: var(--radius-xl);
      padding: 42px;
      background:
        linear-gradient(135deg, rgba(15,23,42,.96), rgba(30,64,175,.92)),
        radial-gradient(circle at 85% 15%, rgba(20,184,166,.42), transparent 35%);
      color: #fff;
      box-shadow: var(--shadow-lg);
    }

    .cta-panel::after {
      content: "";
      position: absolute;
      width: 240px;
      height: 240px;
      right: -80px;
      bottom: -90px;
      border-radius: 999px;
      background: rgba(255,255,255,.10);
    }

    .cta-content {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 24px;
      align-items: center;
    }

    .cta-panel h2 {
      font-size: clamp(28px, 3.4vw, 42px);
      line-height: 1.16;
      letter-spacing: -0.04em;
    }

    .cta-panel p {
      margin-top: 12px;
      max-width: 760px;
      color: rgba(255,255,255,.74);
    }

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

    .cta-actions .btn-secondary {
      background: rgba(255,255,255,.12);
      color: #fff;
      border-color: rgba(255,255,255,.22);
      box-shadow: none;
    }

    .site-footer {
      padding: 54px 0 28px;
      background: #ffffff;
      border-top: 1px solid var(--border);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 34px;
      align-items: start;
    }

    .footer-brand {
      font-size: 18px;
      margin-bottom: 14px;
    }

    .footer-desc {
      max-width: 680px;
      color: var(--text-muted);
      font-size: 15px;
    }

    .footer-links {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: flex-end;
    }

    .footer-links a {
      padding: 9px 12px;
      border-radius: 999px;
      color: var(--text-muted);
      background: var(--surface-soft);
      font-size: 14px;
      font-weight: 800;
      transition: var(--ease);
    }

    .footer-links a:hover,
    .footer-links a:focus {
      color: var(--primary);
      background: var(--primary-soft);
      outline: none;
    }

    .copyright {
      margin-top: 34px;
      padding-top: 20px;
      border-top: 1px solid var(--border);
      display: flex;
      justify-content: space-between;
      gap: 14px;
      color: var(--text-muted);
      font-size: 13px;
    }

    @media (max-width: 1024px) {
      .hero-grid,
      .screen-wrap,
      .system-grid,
      .review-grid,
      .faq-wrap,
      .content-head,
      .value-layout {
        grid-template-columns: 1fr;
      }

      .value-side {
        position: relative;
        top: auto;
      }

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

      .flow-step::after {
        display: none;
      }

      .cta-content {
        grid-template-columns: 1fr;
      }

      .cta-actions {
        justify-content: flex-start;
      }
    }

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

      .nav-wrap {
        min-height: 68px;
      }

      .nav-links {
        position: absolute;
        left: 14px;
        right: 14px;
        top: 74px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 10px;
        border-radius: 22px;
        background: rgba(255,255,255,.96);
        box-shadow: var(--shadow-md);
      }

      .site-header.nav-open .nav-links {
        display: flex;
      }

      .nav-links a {
        text-align: center;
      }

      .nav-cta {
        display: none;
      }

      .menu-btn {
        display: grid;
        place-items: center;
      }

      .hero {
        padding-top: 34px;
      }

      .hero-copy,
      .invite-panel,
      .cta-panel {
        padding: 26px;
      }

      .section {
        padding: 56px 0;
      }

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

      .footer-links {
        justify-content: flex-start;
      }

      .copyright {
        flex-direction: column;
      }
    }

    @media (max-width: 520px) {
      body {
        font-size: 15px;
      }

      .brand-text {
        font-size: 16px;
      }

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

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

      .btn,
      .mini-btn {
        width: 100%;
      }

      .invite-code {
        grid-template-columns: 1fr;
      }

      .check-row {
        grid-template-columns: auto 1fr;
      }

      .check-row .status {
        grid-column: 1 / -1;
        justify-self: start;
      }

      .req-list li {
        grid-template-columns: 1fr;
        gap: 4px;
      }

      .download-option {
        flex-direction: column;
        align-items: stretch;
      }

      .download-option a {
        text-align: center;
      }

      .quote {
        font-size: 20px;
      }
    }