/* roulang page: index */
:root {
      --color-primary: #1769e0;
      --color-primary-dark: #0f4fb3;
      --color-primary-soft: #eaf3ff;
      --color-secondary: #10b8d8;
      --color-accent: #ffb020;
      --color-success: #19a974;
      --color-bg: #f6f9ff;
      --color-surface: #ffffff;
      --color-surface-2: #eef6ff;
      --color-text: #14213d;
      --color-muted: #64748b;
      --color-light: #94a3b8;
      --color-border: #dbe7f5;
      --shadow-sm: 0 8px 24px rgba(23, 105, 224, 0.08);
      --shadow-md: 0 18px 48px rgba(23, 105, 224, 0.14);
      --shadow-lg: 0 28px 80px rgba(23, 105, 224, 0.18);
      --radius-sm: 12px;
      --radius-md: 18px;
      --radius-lg: 28px;
      --radius-xl: 36px;
      --container: 1180px;
      --section-y: 84px;
      --nav-h: 74px;
      --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    }

    * {
      box-sizing: border-box;
    }

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

    body {
      margin: 0;
      font-family: var(--font-main);
      color: var(--color-text);
      background:
        radial-gradient(circle at 10% 0%, rgba(23, 105, 224, 0.10), transparent 32%),
        radial-gradient(circle at 90% 12%, rgba(16, 184, 216, 0.12), transparent 28%),
        var(--color-bg);
      line-height: 1.7;
      padding-bottom: 86px;
    }

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

    a:hover,
    a:focus {
      color: var(--color-primary);
      outline: none;
    }

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

    button,
    input {
      font: inherit;
    }

    button {
      cursor: pointer;
      border: 0;
    }

    input:focus,
    button:focus,
    a:focus-visible {
      outline: 3px solid rgba(23, 105, 224, 0.24);
      outline-offset: 3px;
    }

    .site-shell {
      overflow: hidden;
    }

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      backdrop-filter: blur(18px);
      background: rgba(255, 255, 255, 0.86);
      border-bottom: 1px solid rgba(219, 231, 245, 0.86);
      box-shadow: 0 8px 30px rgba(15, 79, 179, 0.05);
    }

    .nav-wrap {
      height: var(--nav-h);
      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: -0.02em;
      color: var(--color-text);
      min-width: max-content;
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      border-radius: 15px;
      display: grid;
      place-items: center;
      color: #fff;
      background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
      box-shadow: 0 12px 30px rgba(23, 105, 224, 0.26);
    }

    .brand-text {
      font-size: 1.05rem;
      line-height: 1.1;
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 6px;
      border: 1px solid rgba(219, 231, 245, 0.88);
      background: rgba(246, 249, 255, 0.72);
      border-radius: 999px;
    }

    .nav-link {
      padding: 10px 18px;
      border-radius: 999px;
      color: #334155;
      font-weight: 700;
      font-size: .95rem;
    }

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

    .nav-link.active {
      background: var(--color-primary);
      color: #fff;
      box-shadow: 0 10px 24px rgba(23, 105, 224, 0.26);
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .mini-search {
      width: 220px;
      position: relative;
    }

    .mini-search i {
      position: absolute;
      left: 14px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--color-light);
      font-size: .9rem;
    }

    .mini-search input {
      width: 100%;
      height: 42px;
      border: 1px solid var(--color-border);
      background: #fff;
      border-radius: 999px;
      padding: 0 16px 0 38px;
      color: var(--color-text);
      box-shadow: 0 8px 22px rgba(23, 105, 224, 0.04);
    }

    .mini-search input::placeholder {
      color: var(--color-light);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 46px;
      padding: 12px 20px;
      border-radius: 999px;
      font-weight: 800;
      border: 1px solid transparent;
      line-height: 1;
      white-space: nowrap;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease, color .2s ease;
    }

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

    .btn-primary {
      color: #fff;
      background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
      box-shadow: 0 16px 34px rgba(23, 105, 224, 0.28);
    }

    .btn-primary:hover {
      color: #fff;
      box-shadow: 0 20px 44px rgba(23, 105, 224, 0.34);
    }

    .btn-secondary {
      color: var(--color-primary);
      background: #fff;
      border-color: rgba(23, 105, 224, 0.18);
      box-shadow: var(--shadow-sm);
    }

    .btn-secondary:hover {
      background: var(--color-primary-soft);
      border-color: rgba(23, 105, 224, 0.32);
    }

    .btn-ghost {
      color: #334155;
      background: rgba(255, 255, 255, 0.7);
      border-color: var(--color-border);
    }

    .btn-ghost:hover {
      background: #fff;
      color: var(--color-primary);
      box-shadow: var(--shadow-sm);
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      padding: 8px 12px;
      border-radius: 999px;
      background: var(--color-primary-soft);
      color: var(--color-primary);
      font-weight: 800;
      font-size: .86rem;
      border: 1px solid rgba(23, 105, 224, 0.12);
    }

    .badge.light {
      background: rgba(255, 255, 255, 0.72);
      color: #315277;
      border-color: rgba(255, 255, 255, 0.88);
    }

    .section {
      padding: var(--section-y) 0;
      position: relative;
    }

    .section-tight {
      padding: 58px 0;
    }

    .section-head {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 28px;
      margin-bottom: 30px;
    }

    .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--color-primary);
      font-weight: 900;
      margin-bottom: 10px;
      font-size: .92rem;
    }

    .section-title {
      margin: 0;
      font-size: clamp(1.9rem, 3vw, 2.75rem);
      line-height: 1.18;
      letter-spacing: -0.04em;
      color: var(--color-text);
    }

    .section-desc {
      max-width: 680px;
      margin: 12px 0 0;
      color: var(--color-muted);
      font-size: 1.04rem;
    }

    .hero {
      padding: 36px 0 78px;
    }

    .creator-cover {
      position: relative;
      min-height: 440px;
      border-radius: var(--radius-xl);
      overflow: hidden;
      background:
        linear-gradient(120deg, rgba(15, 79, 179, 0.88), rgba(23, 105, 224, 0.64) 45%, rgba(16, 184, 216, 0.62)),
        radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.34), transparent 28%),
        linear-gradient(135deg, #0f4fb3, #eaf3ff);
      box-shadow: var(--shadow-lg);
      border: 1px solid rgba(255, 255, 255, 0.7);
    }

    .cover-pattern {
      position: absolute;
      inset: 0;
      opacity: .28;
      background-image:
        linear-gradient(rgba(255, 255, 255, .28) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .28) 1px, transparent 1px);
      background-size: 48px 48px;
      mask-image: linear-gradient(90deg, #000, transparent);
    }

    .cover-content {
      position: relative;
      padding: clamp(28px, 6vw, 62px);
      display: grid;
      grid-template-columns: minmax(0, 1.2fr) 380px;
      gap: 34px;
      align-items: end;
      min-height: 440px;
    }

    .profile-row {
      display: flex;
      align-items: center;
      gap: 18px;
      margin-bottom: 22px;
      color: #fff;
    }

    .avatar {
      width: 82px;
      height: 82px;
      border-radius: 26px;
      display: grid;
      place-items: center;
      background: rgba(255, 255, 255, .96);
      color: var(--color-primary);
      font-size: 2rem;
      box-shadow: 0 18px 40px rgba(4, 35, 86, 0.22);
      border: 4px solid rgba(255, 255, 255, 0.38);
    }

    .profile-name {
      margin: 0;
      color: #fff;
      font-size: 1.28rem;
      font-weight: 900;
    }

    .profile-note {
      margin: 4px 0 0;
      color: rgba(255, 255, 255, 0.84);
      font-weight: 600;
    }

    .hero h1 {
      margin: 0;
      color: #fff;
      font-size: clamp(2.35rem, 5.2vw, 5.1rem);
      line-height: 1.02;
      letter-spacing: -0.065em;
      max-width: 880px;
    }

    .hero-intro {
      margin: 22px 0 0;
      max-width: 760px;
      color: rgba(255, 255, 255, 0.88);
      font-size: clamp(1.02rem, 1.4vw, 1.18rem);
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 28px;
    }

    .profile-card {
      background: rgba(255, 255, 255, 0.88);
      backdrop-filter: blur(20px);
      border: 1px solid rgba(255, 255, 255, 0.78);
      border-radius: 30px;
      padding: 22px;
      box-shadow: 0 22px 54px rgba(4, 35, 86, 0.22);
    }

    .follow-line {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      margin-bottom: 18px;
    }

    .follow-line strong {
      display: block;
      font-size: 1.05rem;
      line-height: 1.25;
    }

    .follow-line span {
      color: var(--color-muted);
      font-size: .92rem;
    }

    .stat-badges {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 12px;
    }

    .stat-badge {
      padding: 16px;
      border-radius: 20px;
      background: linear-gradient(180deg, #fff, #f5f9ff);
      border: 1px solid rgba(219, 231, 245, 0.9);
    }

    .stat-badge b {
      display: block;
      font-size: 1.4rem;
      line-height: 1.1;
      color: var(--color-primary);
      letter-spacing: -0.04em;
    }

    .stat-badge span {
      color: var(--color-muted);
      font-size: .88rem;
      font-weight: 700;
    }

    .hero-mini-list {
      margin-top: 16px;
      padding: 16px;
      border-radius: 22px;
      background: #f7fbff;
      border: 1px dashed rgba(23, 105, 224, 0.2);
    }

    .hero-mini-list p {
      margin: 0;
      color: #315277;
      font-weight: 700;
      font-size: .95rem;
    }

    .trust-strip {
      transform: translateY(-32px);
      margin-bottom: -24px;
    }

    .trust-card {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 14px;
      background: #fff;
      border: 1px solid var(--color-border);
      border-radius: 26px;
      padding: 14px;
      box-shadow: var(--shadow-md);
    }

    .trust-item {
      padding: 18px;
      border-radius: 20px;
      background: linear-gradient(180deg, #f8fbff, #fff);
      display: flex;
      align-items: flex-start;
      gap: 12px;
    }

    .trust-item i {
      width: 42px;
      height: 42px;
      border-radius: 15px;
      display: grid;
      place-items: center;
      color: var(--color-primary);
      background: var(--color-primary-soft);
      flex: 0 0 auto;
    }

    .trust-item strong {
      display: block;
      margin-bottom: 4px;
      color: var(--color-text);
    }

    .trust-item p {
      margin: 0;
      color: var(--color-muted);
      font-size: .93rem;
      line-height: 1.55;
    }

    .directory-shell {
      display: grid;
      grid-template-columns: 330px minmax(0, 1fr);
      gap: 24px;
      align-items: stretch;
    }

    .tree-card,
    .content-card,
    .news-panel,
    .share-card,
    .topic-card,
    .stage-card,
    .plan-card,
    .faq-item,
    .milestone-card {
      background: var(--color-surface);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-sm);
    }

    .tree-card {
      padding: 24px;
      position: sticky;
      top: 94px;
      align-self: start;
    }

    .tree-title {
      margin: 0 0 16px;
      font-size: 1.15rem;
      font-weight: 900;
    }

    .tree-list {
      list-style: none;
      padding: 0;
      margin: 0;
      display: grid;
      gap: 8px;
    }

    .tree-list a {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 12px 14px;
      border-radius: 14px;
      color: #315277;
      font-weight: 750;
      background: #f8fbff;
      border: 1px solid transparent;
    }

    .tree-list a:hover {
      background: var(--color-primary-soft);
      border-color: rgba(23, 105, 224, 0.18);
      transform: translateX(3px);
    }

    .tree-list small {
      color: var(--color-light);
      font-weight: 800;
    }

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

    .collection-card {
      padding: 22px;
      border-radius: var(--radius-lg);
      background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(248, 251, 255, 0.98));
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-sm);
      min-height: 188px;
      position: relative;
      overflow: hidden;
    }

    .collection-card::after {
      content: "";
      position: absolute;
      width: 120px;
      height: 120px;
      right: -48px;
      bottom: -52px;
      background: radial-gradient(circle, rgba(23, 105, 224, .13), transparent 70%);
    }

    .collection-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(23, 105, 224, 0.28);
    }

    .collection-icon {
      width: 48px;
      height: 48px;
      border-radius: 17px;
      display: grid;
      place-items: center;
      color: #fff;
      background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
      margin-bottom: 16px;
      box-shadow: 0 12px 26px rgba(23, 105, 224, 0.18);
    }

    .collection-card h3,
    .recommend-card h3,
    .topic-card h3,
    .stage-card h3,
    .plan-card h3 {
      margin: 0 0 8px;
      font-size: 1.18rem;
      font-weight: 900;
      letter-spacing: -0.02em;
    }

    .collection-card p,
    .recommend-card p,
    .topic-card p,
    .stage-card p,
    .plan-card p {
      margin: 0;
      color: var(--color-muted);
      font-size: .96rem;
    }

    .card-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 16px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 10px;
      border-radius: 999px;
      background: #f2f7ff;
      color: #315277;
      font-size: .82rem;
      font-weight: 800;
      border: 1px solid rgba(219, 231, 245, .9);
    }

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

    .feature-recommend {
      min-height: 360px;
      padding: 28px;
      border-radius: 32px;
      background:
        linear-gradient(135deg, rgba(15, 79, 179, 0.92), rgba(23, 105, 224, 0.78)),
        radial-gradient(circle at 70% 20%, rgba(255, 255, 255, .38), transparent 25%);
      color: #fff;
      box-shadow: var(--shadow-lg);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      overflow: hidden;
      position: relative;
    }

    .feature-recommend::before {
      content: "";
      position: absolute;
      inset: auto -90px -120px auto;
      width: 300px;
      height: 300px;
      border-radius: 50%;
      background: rgba(255, 255, 255, .14);
    }

    .feature-recommend h3 {
      position: relative;
      margin: 16px 0 12px;
      font-size: clamp(1.8rem, 3vw, 3rem);
      line-height: 1.1;
      letter-spacing: -0.055em;
    }

    .feature-recommend p {
      position: relative;
      max-width: 600px;
      margin: 0;
      color: rgba(255, 255, 255, .86);
    }

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

    .recommend-card {
      padding: 22px;
      display: grid;
      grid-template-columns: 64px minmax(0, 1fr);
      gap: 16px;
      align-items: center;
      border-radius: var(--radius-lg);
      background: #fff;
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-sm);
    }

    .recommend-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(23, 105, 224, .24);
    }

    .cover-tile {
      width: 64px;
      height: 82px;
      border-radius: 18px;
      background:
        linear-gradient(145deg, rgba(23, 105, 224, 0.95), rgba(16, 184, 216, 0.75)),
        linear-gradient(45deg, #fff, transparent);
      position: relative;
      box-shadow: 0 14px 30px rgba(23, 105, 224, 0.18);
    }

    .cover-tile::after {
      content: "\f04b";
      font-family: "Font Awesome 6 Free";
      font-weight: 900;
      position: absolute;
      inset: 0;
      display: grid;
      place-items: center;
      color: #fff;
      font-size: 1rem;
    }

    .news-layout {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 360px;
      gap: 24px;
      align-items: start;
    }

    .news-panel {
      padding: 26px;
    }

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

    .news-list a {
      display: grid;
      grid-template-columns: 100px minmax(0, 1fr) auto;
      gap: 16px;
      align-items: center;
      padding: 16px;
      border-radius: 18px;
      background: #f8fbff;
      border: 1px solid transparent;
    }

    .news-list a:hover {
      background: #fff;
      border-color: rgba(23, 105, 224, 0.22);
      box-shadow: var(--shadow-sm);
      transform: translateY(-2px);
    }

    .news-date {
      color: var(--color-primary);
      font-weight: 900;
      font-size: .9rem;
    }

    .news-title {
      color: var(--color-text);
      font-weight: 850;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    .news-arrow {
      color: var(--color-light);
    }

    .side-rank {
      background: linear-gradient(180deg, #fff, #f5f9ff);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }

    .rank-list {
      counter-reset: rank;
      list-style: none;
      padding: 0;
      margin: 18px 0 0;
      display: grid;
      gap: 12px;
    }

    .rank-list li {
      counter-increment: rank;
      display: flex;
      gap: 12px;
      align-items: flex-start;
      padding-bottom: 12px;
      border-bottom: 1px solid rgba(219, 231, 245, .8);
    }

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

    .rank-list li::before {
      content: counter(rank);
      width: 28px;
      height: 28px;
      flex: 0 0 auto;
      border-radius: 10px;
      display: grid;
      place-items: center;
      background: var(--color-primary-soft);
      color: var(--color-primary);
      font-weight: 900;
    }

    .rank-list strong {
      display: block;
      line-height: 1.35;
    }

    .rank-list span {
      color: var(--color-muted);
      font-size: .88rem;
    }

    .share-section {
      padding-top: 20px;
    }

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

    .share-card {
      padding: 30px;
      overflow: hidden;
      position: relative;
    }

    .share-card.blue {
      background: linear-gradient(135deg, #ffffff, #eef6ff);
    }

    .share-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 22px;
    }

    .subscribe-form {
      display: flex;
      gap: 10px;
      margin-top: 20px;
      padding: 8px;
      border-radius: 999px;
      background: #f4f8ff;
      border: 1px solid var(--color-border);
    }

    .subscribe-form input {
      min-width: 0;
      flex: 1;
      border: 0;
      background: transparent;
      padding: 0 14px;
      color: var(--color-text);
    }

    .subscribe-form input::placeholder {
      color: var(--color-light);
    }

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

    .topic-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 12px 16px;
      border-radius: 999px;
      background: #fff;
      color: #315277;
      border: 1px solid var(--color-border);
      box-shadow: 0 8px 20px rgba(23, 105, 224, 0.05);
      font-weight: 800;
    }

    .topic-pill:hover {
      color: var(--color-primary);
      border-color: rgba(23, 105, 224, .25);
      transform: translateY(-2px);
      box-shadow: var(--shadow-sm);
    }

    .stage-wrap {
      display: grid;
      grid-template-columns: .95fr 1.05fr;
      gap: 28px;
      align-items: center;
    }

    .stage-card {
      padding: 30px;
    }

    .device-frame {
      padding: 16px;
      border-radius: 34px;
      background: linear-gradient(180deg, #0f274d, #143b75);
      box-shadow: var(--shadow-lg);
      border: 1px solid rgba(255, 255, 255, .16);
    }

    .device-screen {
      min-height: 380px;
      border-radius: 24px;
      background: #f7fbff;
      padding: 18px;
      overflow: hidden;
    }

    .screen-top {
      display: flex;
      gap: 8px;
      margin-bottom: 16px;
    }

    .dot {
      width: 10px;
      height: 10px;
      border-radius: 999px;
      background: #bdd2ef;
    }

    .screen-search {
      height: 44px;
      border-radius: 999px;
      background: #fff;
      border: 1px solid var(--color-border);
      margin-bottom: 18px;
      display: flex;
      align-items: center;
      padding: 0 16px;
      color: var(--color-muted);
      font-weight: 700;
    }

    .screen-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 12px;
    }

    .screen-card {
      min-height: 112px;
      border-radius: 18px;
      background: linear-gradient(145deg, rgba(23, 105, 224, .95), rgba(16, 184, 216, .66));
      position: relative;
      overflow: hidden;
    }

    .screen-card:nth-child(2n) {
      background: linear-gradient(145deg, #66a6ff, #89f7fe);
    }

    .screen-card::after {
      content: "";
      position: absolute;
      inset: auto 12px 12px 12px;
      height: 10px;
      border-radius: 999px;
      background: rgba(255, 255, 255, .68);
      box-shadow: 0 -18px 0 rgba(255, 255, 255, .38);
    }

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

    .plan-card {
      padding: 26px;
      position: relative;
    }

    .plan-card.featured {
      border-color: rgba(23, 105, 224, .36);
      box-shadow: var(--shadow-md);
      transform: translateY(-8px);
    }

    .plan-label {
      position: absolute;
      top: 18px;
      right: 18px;
      padding: 6px 10px;
      border-radius: 999px;
      background: var(--color-accent);
      color: #5a3800;
      font-size: .78rem;
      font-weight: 900;
    }

    .price {
      margin: 18px 0 14px;
      font-size: 2.2rem;
      line-height: 1;
      letter-spacing: -0.04em;
      font-weight: 950;
      color: var(--color-primary);
    }

    .price small {
      font-size: .9rem;
      color: var(--color-muted);
      font-weight: 750;
    }

    .check-list {
      list-style: none;
      padding: 0;
      margin: 18px 0 22px;
      display: grid;
      gap: 10px;
    }

    .check-list li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      color: #315277;
      font-weight: 650;
      line-height: 1.55;
    }

    .check-list i {
      color: var(--color-success);
      margin-top: 4px;
    }

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

    .milestone-card {
      padding: 24px;
      min-height: 188px;
    }

    .milestone-card .num {
      width: 42px;
      height: 42px;
      border-radius: 15px;
      display: grid;
      place-items: center;
      color: #fff;
      background: var(--color-primary);
      font-weight: 900;
      margin-bottom: 16px;
      box-shadow: 0 12px 24px rgba(23, 105, 224, .22);
    }

    .milestone-card h3 {
      margin: 0 0 8px;
      font-size: 1.08rem;
      font-weight: 900;
    }

    .milestone-card p {
      margin: 0;
      color: var(--color-muted);
      font-size: .94rem;
    }

    .faq-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

    .faq-item {
      padding: 24px;
    }

    .faq-item h3 {
      margin: 0 0 10px;
      font-size: 1.08rem;
      font-weight: 900;
    }

    .faq-item p {
      margin: 0;
      color: var(--color-muted);
      font-size: .96rem;
    }

    .final-cta {
      padding: 56px;
      border-radius: 36px;
      background:
        linear-gradient(135deg, rgba(15, 79, 179, .96), rgba(23, 105, 224, .84)),
        radial-gradient(circle at 85% 20%, rgba(255, 255, 255, .35), transparent 25%);
      color: #fff;
      box-shadow: var(--shadow-lg);
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 24px;
      align-items: center;
    }

    .final-cta h2 {
      margin: 0 0 12px;
      font-size: clamp(2rem, 3.6vw, 3.4rem);
      line-height: 1.08;
      letter-spacing: -0.055em;
      color: #fff;
    }

    .final-cta p {
      margin: 0;
      color: rgba(255, 255, 255, .84);
      max-width: 720px;
    }

    .site-footer {
      background: #0d1b33;
      color: rgba(255, 255, 255, .82);
      padding: 54px 0 34px;
      margin-top: 32px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.2fr .8fr;
      gap: 32px;
      align-items: start;
    }

    .footer-brand {
      display: flex;
      align-items: center;
      gap: 12px;
      color: #fff;
      font-weight: 900;
      font-size: 1.1rem;
      margin-bottom: 16px;
    }

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

    .footer-text {
      max-width: 660px;
      margin: 0;
      color: rgba(255, 255, 255, .68);
    }

    .footer-links {
      display: flex;
      flex-wrap: wrap;
      justify-content: flex-end;
      gap: 12px;
    }

    .footer-links a {
      padding: 8px 12px;
      border-radius: 999px;
      color: rgba(255, 255, 255, .72);
      background: rgba(255, 255, 255, .06);
      border: 1px solid rgba(255, 255, 255, .08);
    }

    .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: 16px;
      color: rgba(255, 255, 255, .52);
      font-size: .92rem;
    }

    .floating-cta {
      position: fixed;
      left: 50%;
      bottom: 16px;
      transform: translateX(-50%);
      z-index: 80;
      width: min(calc(100% - 28px), 980px);
      background: rgba(255, 255, 255, .92);
      backdrop-filter: blur(18px);
      border: 1px solid rgba(219, 231, 245, .95);
      border-radius: 24px;
      box-shadow: 0 22px 60px rgba(15, 79, 179, .18);
      padding: 12px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
    }

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

    .floating-icon {
      width: 42px;
      height: 42px;
      border-radius: 15px;
      display: grid;
      place-items: center;
      background: var(--color-primary-soft);
      color: var(--color-primary);
      flex: 0 0 auto;
    }

    .floating-copy strong {
      display: block;
      line-height: 1.2;
      color: var(--color-text);
    }

    .floating-copy span {
      display: block;
      color: var(--color-muted);
      font-size: .88rem;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      max-width: 520px;
    }

    @media (max-width: 1024px) {
      :root {
        --section-y: 68px;
      }

      .mini-search {
        display: none;
      }

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

      .profile-card {
        max-width: 560px;
      }

      .directory-shell,
      .recommend-row,
      .news-layout,
      .stage-wrap {
        grid-template-columns: 1fr;
      }

      .tree-card {
        position: relative;
        top: auto;
      }

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

      .final-cta {
        grid-template-columns: 1fr;
        padding: 42px;
      }
    }

    @media (max-width: 768px) {
      body {
        padding-bottom: 116px;
      }

      .container {
        width: min(calc(100% - 28px), var(--container));
      }

      .nav-wrap {
        height: auto;
        min-height: var(--nav-h);
        flex-wrap: wrap;
        padding: 12px 0;
      }

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

      .main-nav {
        order: 3;
        width: 100%;
        display: none;
        border-radius: 18px;
        justify-content: stretch;
        padding: 8px;
      }

      .main-nav.open {
        display: flex;
      }

      .nav-link {
        flex: 1;
        text-align: center;
      }

      .nav-actions {
        margin-left: auto;
      }

      .nav-actions > .btn {
        display: none;
      }

      .hero {
        padding-top: 22px;
      }

      .creator-cover {
        min-height: auto;
        border-radius: 28px;
      }

      .cover-content {
        min-height: auto;
        padding: 28px;
      }

      .profile-row {
        align-items: flex-start;
      }

      .avatar {
        width: 66px;
        height: 66px;
        border-radius: 22px;
      }

      .hero h1 {
        font-size: clamp(2.1rem, 11vw, 3.35rem);
      }

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

      .trust-card,
      .collection-grid,
      .share-wrap,
      .faq-grid {
        grid-template-columns: 1fr;
      }

      .section-head {
        display: block;
      }

      .recommend-card {
        grid-template-columns: 54px minmax(0, 1fr);
      }

      .cover-tile {
        width: 54px;
        height: 72px;
      }

      .news-list a {
        grid-template-columns: 1fr auto;
        gap: 8px 12px;
      }

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

      .subscribe-form {
        border-radius: 22px;
        flex-direction: column;
        padding: 10px;
      }

      .subscribe-form input {
        height: 44px;
      }

      .subscribe-form .btn {
        width: 100%;
      }

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

      .plans-grid,
      .milestone-line {
        grid-template-columns: 1fr;
      }

      .plan-card.featured {
        transform: none;
      }

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

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

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

      .floating-copy span {
        max-width: 100%;
      }

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

    @media (max-width: 520px) {
      :root {
        --section-y: 56px;
      }

      .brand-text {
        font-size: .98rem;
      }

      .profile-row {
        gap: 12px;
      }

      .stat-badges {
        grid-template-columns: 1fr;
      }

      .trust-item {
        padding: 14px;
      }

      .collection-card,
      .news-panel,
      .share-card,
      .stage-card,
      .plan-card,
      .faq-item,
      .milestone-card {
        padding: 20px;
        border-radius: 22px;
      }

      .feature-recommend {
        min-height: 310px;
        padding: 24px;
        border-radius: 26px;
      }

      .device-screen {
        min-height: 320px;
      }

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