/* roulang page: index */
:root {
      --bg: #f7f4ee;
      --bg-soft: #fffaf2;
      --surface: #ffffff;
      --surface-2: #fff6e7;
      --ink: #18202f;
      --muted: #657084;
      --light-muted: #8a94a7;
      --primary: #d94824;
      --primary-dark: #b93618;
      --primary-soft: #fff0e9;
      --accent: #15616d;
      --accent-soft: #e7f6f7;
      --gold: #f4b63d;
      --green: #1f9d6a;
      --border: rgba(24, 32, 47, .12);
      --border-strong: rgba(24, 32, 47, .18);
      --shadow-sm: 0 10px 24px rgba(24, 32, 47, .08);
      --shadow-md: 0 20px 48px rgba(24, 32, 47, .12);
      --shadow-lg: 0 28px 80px rgba(24, 32, 47, .18);
      --radius-sm: 12px;
      --radius: 18px;
      --radius-lg: 28px;
      --radius-xl: 36px;
      --container: 1180px;
      --header-h: 116px;
      --ease: cubic-bezier(.2, .8, .2, 1);
    }

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

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

    body {
      min-height: 100vh;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--ink);
      background:
        radial-gradient(circle at 9% 8%, rgba(244, 182, 61, .22), transparent 28%),
        radial-gradient(circle at 90% 0%, rgba(21, 97, 109, .16), transparent 30%),
        linear-gradient(180deg, #fff9ef 0%, var(--bg) 42%, #fff 100%);
      line-height: 1.65;
      overflow-x: hidden;
    }

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

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

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

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

    input,
    select,
    textarea {
      width: 100%;
      border: 1px solid var(--border);
      border-radius: 14px;
      background: rgba(255, 255, 255, .92);
      color: var(--ink);
      outline: none;
      transition: border-color .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease);
    }

    input:focus,
    select:focus,
    textarea:focus,
    button:focus-visible,
    a:focus-visible {
      outline: 3px solid rgba(217, 72, 36, .22);
      outline-offset: 3px;
    }

    input:focus,
    select:focus,
    textarea:focus {
      border-color: rgba(217, 72, 36, .55);
      box-shadow: 0 0 0 4px rgba(217, 72, 36, .1);
      background: #fff;
    }

    ul, ol {
      list-style: none;
    }

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(255, 250, 242, .88);
      backdrop-filter: blur(20px);
      border-bottom: 1px solid rgba(24, 32, 47, .08);
      box-shadow: 0 12px 36px rgba(24, 32, 47, .06);
    }

    .brand-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 22px;
      padding: 14px 0 10px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: max-content;
      font-weight: 900;
      letter-spacing: -.02em;
      color: var(--ink);
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      display: grid;
      place-items: center;
      border-radius: 15px;
      color: #fff;
      background:
        linear-gradient(135deg, var(--primary), #ff8b43 58%, var(--gold));
      box-shadow: 0 12px 28px rgba(217, 72, 36, .24);
      font-size: 18px;
      font-weight: 900;
    }

    .brand-name {
      font-size: 20px;
      line-height: 1.1;
    }

    .brand-sub {
      display: block;
      margin-top: 2px;
      color: var(--muted);
      font-size: 12px;
      font-weight: 700;
      letter-spacing: .08em;
    }

    .header-search {
      flex: 1;
      max-width: 560px;
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 6px;
      border: 1px solid var(--border);
      border-radius: 999px;
      background: rgba(255, 255, 255, .78);
      box-shadow: inset 0 1px 0 rgba(255, 255, 255, .7);
    }

    .header-search input {
      height: 38px;
      padding: 0 14px;
      border: 0;
      border-radius: 999px;
      background: transparent;
      font-size: 14px;
    }

    .search-submit {
      min-width: 72px;
      height: 38px;
      border-radius: 999px;
      background: var(--ink);
      color: #fff;
      font-size: 14px;
      font-weight: 800;
      transition: transform .2s var(--ease), background .2s var(--ease);
    }

    .search-submit:hover {
      transform: translateY(-1px);
      background: var(--primary);
    }

    .mobile-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: 14px;
      background: var(--surface);
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
    }

    .mobile-toggle span {
      display: block;
      width: 18px;
      height: 2px;
      margin: 4px auto;
      border-radius: 99px;
      background: var(--ink);
      transition: transform .2s var(--ease), opacity .2s var(--ease);
    }

    .channel-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding: 0 0 12px;
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .nav-link {
      display: inline-flex;
      align-items: center;
      min-height: 38px;
      padding: 8px 16px;
      border-radius: 999px;
      color: var(--muted);
      font-size: 14px;
      font-weight: 850;
      transition: color .2s var(--ease), background .2s var(--ease), transform .2s var(--ease);
    }

    .nav-link:hover {
      color: var(--ink);
      background: rgba(217, 72, 36, .08);
      transform: translateY(-1px);
    }

    .nav-link.active {
      color: #fff;
      background: var(--primary);
      box-shadow: 0 10px 22px rgba(217, 72, 36, .22);
    }

    .trend-strip {
      display: flex;
      align-items: center;
      gap: 8px;
      min-width: 0;
      overflow-x: auto;
      scrollbar-width: none;
    }

    .trend-strip::-webkit-scrollbar {
      display: none;
    }

    .trend-label {
      flex: 0 0 auto;
      color: var(--light-muted);
      font-size: 13px;
      font-weight: 800;
    }

    .trend-chip {
      flex: 0 0 auto;
      padding: 7px 11px;
      border: 1px solid rgba(21, 97, 109, .14);
      border-radius: 999px;
      background: rgba(231, 246, 247, .7);
      color: var(--accent);
      font-size: 13px;
      font-weight: 750;
      transition: background .2s var(--ease), transform .2s var(--ease);
    }

    .trend-chip:hover {
      background: #dff3f5;
      transform: translateY(-1px);
    }

    main {
      overflow: hidden;
    }

    .section {
      padding: 82px 0;
    }

    .section.compact {
      padding: 58px 0;
    }

    .section-head {
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 24px;
      align-items: end;
      margin-bottom: 28px;
    }

    .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 10px;
      color: var(--primary);
      font-size: 13px;
      font-weight: 900;
      letter-spacing: .08em;
    }

    .section-kicker::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--primary);
      box-shadow: 0 0 0 6px rgba(217, 72, 36, .1);
    }

    .section-title {
      font-size: clamp(28px, 4vw, 44px);
      line-height: 1.15;
      letter-spacing: -.04em;
      color: var(--ink);
    }

    .section-desc {
      max-width: 720px;
      margin-top: 12px;
      color: var(--muted);
      font-size: 16px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 46px;
      padding: 12px 18px;
      border-radius: 999px;
      font-weight: 900;
      letter-spacing: -.01em;
      border: 1px solid transparent;
      transition: transform .22s var(--ease), box-shadow .22s var(--ease), background .22s var(--ease), border-color .22s var(--ease), color .22s var(--ease);
      user-select: none;
      white-space: nowrap;
    }

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

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

    .btn-primary {
      background: var(--primary);
      color: #fff;
      box-shadow: 0 15px 30px rgba(217, 72, 36, .25);
    }

    .btn-primary:hover {
      background: var(--primary-dark);
      box-shadow: 0 20px 40px rgba(217, 72, 36, .32);
    }

    .btn-dark {
      background: var(--ink);
      color: #fff;
      box-shadow: 0 16px 36px rgba(24, 32, 47, .18);
    }

    .btn-dark:hover {
      background: #0f1624;
      box-shadow: 0 22px 44px rgba(24, 32, 47, .24);
    }

    .btn-ghost {
      border-color: var(--border-strong);
      background: rgba(255, 255, 255, .72);
      color: var(--ink);
    }

    .btn-ghost:hover {
      border-color: rgba(217, 72, 36, .35);
      background: var(--primary-soft);
      color: var(--primary-dark);
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      padding: 7px 10px;
      border-radius: 999px;
      background: var(--primary-soft);
      color: var(--primary-dark);
      font-size: 13px;
      font-weight: 850;
    }

    .badge.accent {
      background: var(--accent-soft);
      color: var(--accent);
    }

    .card {
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      background: rgba(255, 255, 255, .84);
      box-shadow: var(--shadow-sm);
      transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
    }

    .card:hover {
      transform: translateY(-4px);
      border-color: rgba(217, 72, 36, .22);
      box-shadow: var(--shadow-md);
    }

    .hero {
      padding: 40px 0 76px;
    }

    .hero-shell {
      position: relative;
      display: grid;
      grid-template-columns: 330px minmax(0, 1fr) 360px;
      gap: 22px;
      align-items: stretch;
      padding: 22px;
      border: 1px solid rgba(24, 32, 47, .1);
      border-radius: var(--radius-xl);
      background:
        linear-gradient(135deg, rgba(255, 255, 255, .72), rgba(255, 246, 231, .88)),
        radial-gradient(circle at 80% 10%, rgba(217, 72, 36, .12), transparent 34%);
      box-shadow: var(--shadow-lg);
    }

    .hero-shell::after {
      content: "";
      position: absolute;
      inset: auto 48px -20px 48px;
      height: 44px;
      border-radius: 999px;
      background: rgba(217, 72, 36, .14);
      filter: blur(26px);
      z-index: -1;
    }

    .whitepaper-cover {
      position: relative;
      min-height: 430px;
      overflow: hidden;
      border-radius: 30px;
      padding: 24px;
      color: #fff;
      background:
        linear-gradient(145deg, rgba(24, 32, 47, .96), rgba(21, 97, 109, .92)),
        radial-gradient(circle at 30% 20%, rgba(244, 182, 61, .42), transparent 32%);
      box-shadow: inset 0 1px 0 rgba(255, 255, 255, .18), 0 24px 54px rgba(24, 32, 47, .24);
    }

    .cover-ribbon {
      display: inline-flex;
      padding: 7px 10px;
      border-radius: 999px;
      background: rgba(255, 255, 255, .14);
      color: rgba(255, 255, 255, .86);
      font-size: 12px;
      font-weight: 850;
      letter-spacing: .08em;
    }

    .cover-title {
      margin-top: 46px;
      font-size: 34px;
      line-height: 1.12;
      letter-spacing: -.05em;
      font-weight: 950;
    }

    .cover-title span {
      color: var(--gold);
    }

    .cover-lines {
      position: absolute;
      right: -34px;
      bottom: 62px;
      width: 190px;
      height: 190px;
      border: 28px solid rgba(255, 255, 255, .12);
      border-radius: 50%;
    }

    .cover-meta {
      position: absolute;
      left: 24px;
      right: 24px;
      bottom: 24px;
      display: flex;
      justify-content: space-between;
      gap: 12px;
      padding-top: 18px;
      border-top: 1px solid rgba(255, 255, 255, .18);
      color: rgba(255, 255, 255, .78);
      font-size: 13px;
      font-weight: 750;
    }

    .hero-copy {
      padding: 18px 8px 10px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      min-width: 0;
    }

    .hero h1 {
      max-width: 690px;
      font-size: clamp(36px, 5vw, 62px);
      line-height: 1.04;
      letter-spacing: -.06em;
      color: var(--ink);
    }

    .hero-intro {
      max-width: 660px;
      margin-top: 18px;
      color: var(--muted);
      font-size: 18px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 26px;
    }

    .hero-points {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 12px;
      margin-top: 30px;
    }

    .point {
      padding: 16px;
      border-radius: 20px;
      border: 1px solid rgba(24, 32, 47, .1);
      background: rgba(255, 255, 255, .72);
    }

    .point strong {
      display: block;
      color: var(--primary);
      font-size: 26px;
      line-height: 1.1;
      letter-spacing: -.04em;
    }

    .point span {
      display: block;
      margin-top: 5px;
      color: var(--muted);
      font-size: 13px;
      font-weight: 750;
    }

    .lead-form-card {
      padding: 20px;
      border-radius: 30px;
      background: #fff;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-md);
    }

    .toc-box {
      padding: 16px;
      border-radius: 22px;
      background: var(--bg-soft);
      border: 1px dashed rgba(217, 72, 36, .28);
    }

    .toc-box h2 {
      font-size: 17px;
      line-height: 1.3;
    }

    .toc-list {
      display: grid;
      gap: 10px;
      margin-top: 12px;
    }

    .toc-list li {
      display: flex;
      gap: 9px;
      color: var(--muted);
      font-size: 14px;
    }

    .toc-list li::before {
      content: "✓";
      flex: 0 0 auto;
      width: 19px;
      height: 19px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      background: var(--accent-soft);
      color: var(--accent);
      font-size: 12px;
      font-weight: 950;
      margin-top: 2px;
    }

    .download-form {
      display: grid;
      gap: 12px;
      margin-top: 16px;
    }

    .form-label {
      display: grid;
      gap: 7px;
      color: var(--muted);
      font-size: 13px;
      font-weight: 800;
    }

    .download-form input,
    .download-form select {
      height: 46px;
      padding: 0 13px;
    }

    .form-note {
      color: var(--light-muted);
      font-size: 12px;
      line-height: 1.6;
    }

    .form-message {
      display: none;
      padding: 10px 12px;
      border-radius: 14px;
      background: rgba(31, 157, 106, .1);
      color: #13764e;
      font-size: 13px;
      font-weight: 800;
    }

    .form-message.show {
      display: block;
    }

    .coupon-section {
      background: linear-gradient(180deg, rgba(255, 255, 255, .44), rgba(255, 246, 231, .5));
    }

    .coupon-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 18px;
    }

    .coupon {
      position: relative;
      min-height: 178px;
      overflow: hidden;
      border-radius: 26px;
      padding: 22px;
      background:
        radial-gradient(circle at 100% 0%, rgba(244, 182, 61, .24), transparent 35%),
        linear-gradient(135deg, #fff, #fff7ec);
      border: 1px solid rgba(217, 72, 36, .16);
      box-shadow: var(--shadow-sm);
      transition: transform .25s var(--ease), box-shadow .25s var(--ease);
    }

    .coupon::before,
    .coupon::after {
      content: "";
      position: absolute;
      top: 50%;
      width: 26px;
      height: 26px;
      border-radius: 50%;
      background: var(--bg);
      transform: translateY(-50%);
      border: 1px solid rgba(217, 72, 36, .08);
    }

    .coupon::before {
      left: -13px;
    }

    .coupon::after {
      right: -13px;
    }

    .coupon:hover {
      transform: translateY(-5px) rotate(-.3deg);
      box-shadow: var(--shadow-md);
    }

    .coupon-top {
      display: flex;
      justify-content: space-between;
      gap: 14px;
      align-items: flex-start;
    }

    .coupon h3 {
      font-size: 21px;
      line-height: 1.25;
    }

    .coupon-value {
      color: var(--primary);
      font-size: 28px;
      line-height: 1;
      font-weight: 950;
      letter-spacing: -.05em;
    }

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

    .coupon-foot {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 10px;
      margin-top: 18px;
      padding-top: 14px;
      border-top: 1px dashed rgba(217, 72, 36, .24);
    }

    .coupon-code {
      color: var(--accent);
      font-size: 13px;
      font-weight: 900;
    }

    .coupon-link {
      color: var(--primary-dark);
      font-size: 13px;
      font-weight: 900;
    }

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

    .rules-aside {
      position: sticky;
      top: 140px;
      padding: 28px;
      border-radius: var(--radius-lg);
      color: #fff;
      background:
        linear-gradient(145deg, rgba(217, 72, 36, .94), rgba(177, 54, 24, .96)),
        radial-gradient(circle at 20% 10%, rgba(244, 182, 61, .35), transparent 38%);
      box-shadow: var(--shadow-md);
    }

    .rules-aside h2 {
      font-size: 32px;
      line-height: 1.15;
      letter-spacing: -.04em;
    }

    .rules-aside p {
      margin-top: 12px;
      color: rgba(255, 255, 255, .82);
    }

    .rules-list {
      display: grid;
      gap: 14px;
      counter-reset: rule;
    }

    .rule-item {
      counter-increment: rule;
      display: grid;
      grid-template-columns: 54px minmax(0, 1fr);
      gap: 15px;
      padding: 20px;
      border: 1px solid var(--border);
      border-radius: 24px;
      background: rgba(255, 255, 255, .86);
      box-shadow: var(--shadow-sm);
      transition: transform .22s var(--ease), border-color .22s var(--ease);
    }

    .rule-item:hover {
      transform: translateX(4px);
      border-color: rgba(21, 97, 109, .26);
    }

    .rule-number {
      width: 54px;
      height: 54px;
      display: grid;
      place-items: center;
      border-radius: 18px;
      background: var(--accent-soft);
      color: var(--accent);
      font-weight: 950;
      font-size: 18px;
    }

    .rule-number::before {
      content: counter(rule, decimal-leading-zero);
    }

    .rule-item h3 {
      font-size: 20px;
      line-height: 1.25;
    }

    .rule-item p {
      margin-top: 7px;
      color: var(--muted);
      font-size: 14px;
    }

    .analytics {
      background: #fff;
    }

    .dashboard {
      display: grid;
      grid-template-columns: 1fr 1.25fr;
      gap: 22px;
      align-items: stretch;
    }

    .kpi-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 14px;
    }

    .kpi {
      padding: 20px;
      border-radius: 24px;
      border: 1px solid var(--border);
      background: linear-gradient(180deg, #fff, #fff9ef);
      box-shadow: var(--shadow-sm);
    }

    .kpi small {
      color: var(--muted);
      font-weight: 850;
    }

    .kpi strong {
      display: block;
      margin-top: 8px;
      color: var(--ink);
      font-size: 34px;
      line-height: 1;
      letter-spacing: -.05em;
    }

    .kpi span {
      display: block;
      margin-top: 10px;
      color: var(--light-muted);
      font-size: 13px;
    }

    .chart-card {
      padding: 24px;
      border-radius: var(--radius-lg);
      background: var(--ink);
      color: #fff;
      box-shadow: var(--shadow-md);
    }

    .chart-card h3 {
      font-size: 22px;
      line-height: 1.25;
    }

    .chart-card p {
      margin-top: 8px;
      color: rgba(255, 255, 255, .68);
      font-size: 14px;
    }

    .bar-list {
      display: grid;
      gap: 16px;
      margin-top: 24px;
    }

    .bar-row {
      display: grid;
      grid-template-columns: 92px minmax(0, 1fr) 48px;
      gap: 12px;
      align-items: center;
      font-size: 14px;
      font-weight: 850;
    }

    .bar-track {
      height: 12px;
      overflow: hidden;
      border-radius: 999px;
      background: rgba(255, 255, 255, .13);
    }

    .bar-fill {
      height: 100%;
      border-radius: inherit;
      background: linear-gradient(90deg, var(--gold), #ff7442);
    }

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

    .timeline-wrap::before {
      content: "";
      position: absolute;
      left: 8%;
      right: 8%;
      top: 34px;
      height: 2px;
      background: linear-gradient(90deg, rgba(217, 72, 36, .25), rgba(21, 97, 109, .35));
    }

    .time-node {
      position: relative;
      padding: 68px 18px 20px;
      border-radius: 24px;
      background: rgba(255, 255, 255, .86);
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
    }

    .time-dot {
      position: absolute;
      top: 23px;
      left: 18px;
      width: 24px;
      height: 24px;
      border: 6px solid #fff;
      border-radius: 50%;
      background: var(--primary);
      box-shadow: 0 0 0 5px rgba(217, 72, 36, .14);
    }

    .time-node time {
      color: var(--primary-dark);
      font-size: 13px;
      font-weight: 950;
    }

    .time-node h3 {
      margin-top: 8px;
      font-size: 18px;
      line-height: 1.25;
    }

    .time-node p {
      margin-top: 8px;
      color: var(--muted);
      font-size: 14px;
    }

    .guarantee-strip {
      display: grid;
      grid-template-columns: repeat(5, minmax(0, 1fr));
      gap: 12px;
      padding: 14px;
      border-radius: 28px;
      background: var(--surface);
      border: 1px solid var(--border);
      box-shadow: var(--shadow-md);
    }

    .guarantee-item {
      display: grid;
      gap: 10px;
      justify-items: center;
      text-align: center;
      padding: 20px 14px;
      border-radius: 22px;
      background: linear-gradient(180deg, #fff, #fff8ee);
      transition: transform .2s var(--ease), background .2s var(--ease);
    }

    .guarantee-item:hover {
      transform: translateY(-3px);
      background: var(--accent-soft);
    }

    .guarantee-icon {
      width: 46px;
      height: 46px;
      display: grid;
      place-items: center;
      border-radius: 17px;
      background: var(--ink);
      color: #fff;
      font-size: 22px;
    }

    .guarantee-item strong {
      font-size: 16px;
    }

    .guarantee-item span {
      color: var(--muted);
      font-size: 13px;
    }

    .plans {
      background:
        radial-gradient(circle at 10% 20%, rgba(21, 97, 109, .12), transparent 26%),
        linear-gradient(180deg, #fff, #fff8ee);
    }

    .plan-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 18px;
      align-items: stretch;
    }

    .plan-card {
      position: relative;
      display: flex;
      flex-direction: column;
      padding: 24px;
      border-radius: 30px;
      border: 1px solid var(--border);
      background: rgba(255, 255, 255, .88);
      box-shadow: var(--shadow-sm);
      transition: transform .25s var(--ease), box-shadow .25s var(--ease);
    }

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

    .plan-card.featured {
      border-color: rgba(217, 72, 36, .34);
      background:
        radial-gradient(circle at 80% 0%, rgba(244, 182, 61, .22), transparent 36%),
        #fff;
      box-shadow: var(--shadow-lg);
    }

    .plan-tag {
      position: absolute;
      top: 18px;
      right: 18px;
    }

    .plan-card h3 {
      padding-right: 82px;
      font-size: 22px;
    }

    .plan-price {
      margin: 18px 0 8px;
      color: var(--primary);
      font-size: 38px;
      line-height: 1;
      font-weight: 950;
      letter-spacing: -.06em;
    }

    .plan-price small {
      color: var(--muted);
      font-size: 14px;
      font-weight: 800;
      letter-spacing: 0;
    }

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

    .plan-features {
      display: grid;
      gap: 10px;
      margin: 20px 0 24px;
    }

    .plan-features li {
      display: flex;
      gap: 9px;
      color: var(--ink);
      font-size: 14px;
      font-weight: 750;
    }

    .plan-features li::before {
      content: "●";
      color: var(--green);
      font-size: 12px;
      margin-top: 3px;
    }

    .plan-card .btn {
      margin-top: auto;
      width: 100%;
    }

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

    .faq-side {
      padding: 28px;
      border-radius: var(--radius-lg);
      background: var(--accent);
      color: #fff;
      box-shadow: var(--shadow-md);
    }

    .faq-side h2 {
      font-size: 32px;
      line-height: 1.12;
      letter-spacing: -.04em;
    }

    .faq-side p {
      margin-top: 12px;
      color: rgba(255, 255, 255, .74);
    }

    .faq-list {
      display: grid;
      gap: 13px;
    }

    .faq-item {
      border: 1px solid var(--border);
      border-radius: 22px;
      overflow: hidden;
      background: rgba(255, 255, 255, .86);
      box-shadow: var(--shadow-sm);
    }

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

    .faq-question:hover {
      background: var(--primary-soft);
    }

    .faq-question::after {
      content: "+";
      flex: 0 0 auto;
      width: 28px;
      height: 28px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      background: var(--bg-soft);
      color: var(--primary);
      font-size: 20px;
      line-height: 1;
      transition: transform .2s var(--ease);
    }

    .faq-item.open .faq-question::after {
      content: "−";
      transform: rotate(180deg);
    }

    .faq-answer {
      display: none;
      padding: 0 20px 18px;
      color: var(--muted);
      font-size: 14px;
    }

    .faq-item.open .faq-answer {
      display: block;
    }

    .news-section {
      background: #fff;
    }

    .news-layout {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 340px;
      gap: 24px;
      align-items: start;
    }

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

    .news-item {
      display: grid;
      grid-template-columns: 108px minmax(0, 1fr) auto;
      gap: 16px;
      align-items: center;
      padding: 18px 20px;
      border-bottom: 1px solid var(--border);
      transition: background .2s var(--ease), transform .2s var(--ease);
    }

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

    .news-item:hover {
      background: var(--bg-soft);
      transform: translateX(3px);
    }

    .news-date {
      color: var(--primary);
      font-size: 13px;
      font-weight: 950;
    }

    .news-item h3 {
      font-size: 18px;
      line-height: 1.32;
    }

    .news-item p {
      margin-top: 5px;
      color: var(--muted);
      font-size: 13px;
    }

    .news-arrow {
      width: 34px;
      height: 34px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      background: var(--accent-soft);
      color: var(--accent);
      font-weight: 950;
    }

    .recommend-card {
      padding: 22px;
      border-radius: var(--radius-lg);
      background:
        linear-gradient(145deg, #18202f, #21314a),
        radial-gradient(circle at 20% 0%, rgba(244, 182, 61, .32), transparent 34%);
      color: #fff;
      box-shadow: var(--shadow-md);
    }

    .recommend-card h3 {
      font-size: 24px;
      line-height: 1.18;
      letter-spacing: -.03em;
    }

    .recommend-card p {
      margin-top: 10px;
      color: rgba(255, 255, 255, .7);
      font-size: 14px;
    }

    .recommend-list {
      display: grid;
      gap: 10px;
      margin-top: 18px;
    }

    .recommend-list a {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      padding: 12px 0;
      border-top: 1px solid rgba(255, 255, 255, .12);
      color: rgba(255, 255, 255, .88);
      font-size: 14px;
      font-weight: 800;
      transition: color .2s var(--ease), padding-left .2s var(--ease);
    }

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

    .cta {
      padding: 72px 0;
    }

    .cta-panel {
      position: relative;
      overflow: hidden;
      display: grid;
      grid-template-columns: minmax(0, 1fr) 360px;
      gap: 28px;
      align-items: center;
      padding: 36px;
      border-radius: 36px;
      color: #fff;
      background:
        radial-gradient(circle at 85% 15%, rgba(244, 182, 61, .34), transparent 34%),
        linear-gradient(135deg, var(--primary-dark), var(--primary) 48%, #ff8a3d);
      box-shadow: var(--shadow-lg);
    }

    .cta-panel::before {
      content: "";
      position: absolute;
      right: -80px;
      bottom: -100px;
      width: 260px;
      height: 260px;
      border-radius: 50%;
      border: 42px solid rgba(255, 255, 255, .12);
    }

    .cta h2 {
      position: relative;
      font-size: clamp(30px, 4vw, 48px);
      line-height: 1.12;
      letter-spacing: -.05em;
    }

    .cta p {
      position: relative;
      max-width: 720px;
      margin-top: 12px;
      color: rgba(255, 255, 255, .82);
      font-size: 16px;
    }

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

    .cta .btn-ghost {
      color: #fff;
      border-color: rgba(255, 255, 255, .36);
      background: rgba(255, 255, 255, .12);
    }

    .cta .btn-ghost:hover {
      background: rgba(255, 255, 255, .22);
      color: #fff;
    }

    .cta-mini-card {
      position: relative;
      padding: 22px;
      border-radius: 26px;
      background: rgba(255, 255, 255, .14);
      border: 1px solid rgba(255, 255, 255, .2);
      backdrop-filter: blur(12px);
    }

    .cta-mini-card strong {
      display: block;
      font-size: 36px;
      line-height: 1;
      letter-spacing: -.05em;
    }

    .cta-mini-card span {
      display: block;
      margin-top: 10px;
      color: rgba(255, 255, 255, .76);
      font-size: 14px;
    }

    .site-footer {
      padding: 52px 0 28px;
      background: #111827;
      color: rgba(255, 255, 255, .76);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.1fr .7fr .7fr;
      gap: 28px;
      align-items: start;
    }

    .footer-brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      color: #fff;
      font-size: 20px;
      font-weight: 950;
    }

    .footer-brand .brand-mark {
      width: 40px;
      height: 40px;
      border-radius: 14px;
    }

    .footer-desc {
      max-width: 520px;
      margin-top: 14px;
      color: rgba(255, 255, 255, .62);
      font-size: 14px;
    }

    .footer-col h3 {
      color: #fff;
      font-size: 15px;
      margin-bottom: 12px;
    }

    .footer-links {
      display: grid;
      gap: 9px;
    }

    .footer-links a,
    .footer-links span {
      color: rgba(255, 255, 255, .64);
      font-size: 14px;
      transition: color .2s var(--ease), transform .2s var(--ease);
    }

    .footer-links a:hover {
      color: #fff;
      transform: translateX(3px);
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 16px;
      margin-top: 34px;
      padding-top: 20px;
      border-top: 1px solid rgba(255, 255, 255, .1);
      color: rgba(255, 255, 255, .5);
      font-size: 13px;
    }

    .floating-cta {
      position: fixed;
      right: 22px;
      bottom: 22px;
      z-index: 45;
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 12px 14px;
      border-radius: 999px;
      background: rgba(24, 32, 47, .92);
      color: #fff;
      box-shadow: 0 16px 34px rgba(24, 32, 47, .24);
      backdrop-filter: blur(14px);
      transition: transform .2s var(--ease), background .2s var(--ease);
    }

    .floating-cta:hover {
      transform: translateY(-3px);
      background: var(--primary);
    }

    .floating-cta span {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: var(--green);
      box-shadow: 0 0 0 6px rgba(31, 157, 106, .18);
    }

    @media (max-width: 1120px) {
      .hero-shell {
        grid-template-columns: 300px minmax(0, 1fr);
      }

      .lead-form-card {
        grid-column: 1 / -1;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 16px;
      }

      .download-form {
        margin-top: 0;
      }

      .dashboard,
      .rules-wrap,
      .faq-grid {
        grid-template-columns: 1fr;
      }

      .rules-aside {
        position: relative;
        top: 0;
      }

      .guarantee-strip {
        grid-template-columns: repeat(3, minmax(0, 1fr));
      }
    }

    @media (max-width: 900px) {
      .container {
        width: min(100% - 28px, var(--container));
      }

      .brand-row {
        flex-wrap: wrap;
      }

      .header-search {
        order: 3;
        width: 100%;
        max-width: none;
      }

      .mobile-toggle {
        display: inline-grid;
        place-items: center;
      }

      .channel-row {
        display: none;
        align-items: stretch;
        flex-direction: column;
        padding: 0 0 14px;
      }

      .site-header.menu-open .channel-row {
        display: flex;
      }

      .site-header.menu-open .mobile-toggle span:nth-child(1) {
        transform: translateY(6px) rotate(45deg);
      }

      .site-header.menu-open .mobile-toggle span:nth-child(2) {
        opacity: 0;
      }

      .site-header.menu-open .mobile-toggle span:nth-child(3) {
        transform: translateY(-6px) rotate(-45deg);
      }

      .main-nav {
        width: 100%;
      }

      .nav-link {
        width: 100%;
        justify-content: center;
      }

      .trend-strip {
        width: 100%;
        padding-bottom: 2px;
      }

      .hero {
        padding-top: 24px;
      }

      .hero-shell {
        grid-template-columns: 1fr;
        padding: 16px;
      }

      .whitepaper-cover {
        min-height: 360px;
      }

      .hero-copy {
        padding: 8px 2px;
      }

      .lead-form-card {
        display: block;
      }

      .download-form {
        margin-top: 16px;
      }

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

      .dashboard {
        gap: 16px;
      }

      .timeline-wrap {
        grid-template-columns: 1fr 1fr;
      }

      .timeline-wrap::before {
        display: none;
      }

      .news-layout,
      .cta-panel {
        grid-template-columns: 1fr;
      }

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

    @media (max-width: 640px) {
      .section {
        padding: 62px 0;
      }

      .section.compact {
        padding: 44px 0;
      }

      .section-head {
        grid-template-columns: 1fr;
        align-items: start;
      }

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

      .brand-sub {
        display: none;
      }

      .hero h1 {
        font-size: 38px;
      }

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

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

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

      .cover-title {
        font-size: 30px;
      }

      .kpi-grid,
      .timeline-wrap,
      .guarantee-strip {
        grid-template-columns: 1fr;
      }

      .bar-row {
        grid-template-columns: 76px minmax(0, 1fr) 40px;
        gap: 9px;
      }

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

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

      .cta-panel {
        padding: 26px 20px;
        border-radius: 28px;
      }

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

      .floating-cta {
        left: 14px;
        right: 14px;
        justify-content: center;
      }
    }

    @media (max-width: 420px) {
      .brand-row {
        gap: 12px;
      }

      .header-search {
        border-radius: 20px;
      }

      .search-submit {
        min-width: 62px;
      }

      .whitepaper-cover {
        min-height: 320px;
        padding: 20px;
      }

      .cover-meta {
        left: 20px;
        right: 20px;
        flex-direction: column;
      }

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

      .rule-number {
        width: 48px;
        height: 48px;
      }
    }