/* roulang page: index */
:root {
      --bg: #f7f8f5;
      --surface: #ffffff;
      --surface-soft: #f0f3ef;
      --ink: #141414;
      --muted: #666b63;
      --line: #dde2d8;
      --accent: #ff4d2e;
      --accent-strong: #e63d20;
      --cyan: #1ee6b7;
      --lime: #d8ff3e;
      --dark: #171a16;
      --radius: 16px;
      --radius-sm: 12px;
      --shadow: 0 18px 45px rgba(20, 20, 20, .10);
      --shadow-soft: 0 10px 30px rgba(20, 20, 20, .07);
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--ink);
      background:
        linear-gradient(180deg, rgba(255, 77, 46, .08), transparent 340px),
        var(--bg);
      line-height: 1.6;
      text-rendering: optimizeLegibility;
    }

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

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

    button,
    input {
      font: inherit;
    }

    .site-container {
      width: min(1180px, calc(100% - 32px));
      margin: 0 auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(247, 248, 245, .92);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(221, 226, 216, .92);
    }

    .topbar {
      min-height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      min-width: 0;
      font-weight: 900;
      letter-spacing: 0;
    }

    .brand-mark {
      width: 38px;
      height: 38px;
      border-radius: 12px;
      display: grid;
      place-items: center;
      color: #101310;
      background: linear-gradient(135deg, var(--lime), var(--cyan));
      box-shadow: 0 10px 22px rgba(30, 230, 183, .22);
      flex: 0 0 auto;
    }

    .brand-text {
      overflow-wrap: anywhere;
      font-size: 16px;
      line-height: 1.25;
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 10px;
      flex: 0 0 auto;
    }

    .nav-shell {
      padding: 0 0 14px;
      overflow-x: auto;
      scrollbar-width: none;
    }

    .nav-shell::-webkit-scrollbar {
      display: none;
    }

    .seg-nav {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px;
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: 999px;
      box-shadow: var(--shadow-soft);
      white-space: nowrap;
    }

    .nav-chip,
    .hero-chip,
    .filter-chip {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      border-radius: 999px;
      border: 1px solid transparent;
      transition: transform .18s ease, background .18s ease, border-color .18s ease, color .18s ease, box-shadow .18s ease;
    }

    .nav-chip {
      padding: 9px 14px;
      color: var(--muted);
      font-size: 14px;
      font-weight: 800;
    }

    .nav-chip:hover,
    .nav-chip:focus-visible {
      color: var(--ink);
      background: var(--surface-soft);
      outline: none;
    }

    .nav-chip.active {
      color: #fff;
      background: var(--dark);
      box-shadow: 0 8px 18px rgba(20, 20, 20, .16);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 42px;
      padding: 11px 16px;
      border-radius: 999px;
      border: 1px solid transparent;
      font-weight: 900;
      line-height: 1;
      cursor: pointer;
      transition: transform .18s ease, background .18s ease, border-color .18s ease, box-shadow .18s ease;
    }

    .btn:hover,
    .btn:focus-visible {
      transform: translateY(-2px);
      outline: none;
    }

    .btn-primary {
      color: #fff;
      background: var(--accent);
      box-shadow: 0 14px 28px rgba(255, 77, 46, .24);
    }

    .btn-primary:hover,
    .btn-primary:focus-visible {
      background: var(--accent-strong);
      box-shadow: 0 16px 34px rgba(255, 77, 46, .32);
    }

    .btn-dark {
      color: #fff;
      background: var(--dark);
      border-color: rgba(255, 255, 255, .16);
    }

    .btn-dark:hover,
    .btn-dark:focus-visible {
      background: #000;
      border-color: var(--cyan);
    }

    .btn-ghost {
      color: var(--ink);
      background: rgba(255, 255, 255, .84);
      border-color: var(--line);
    }

    .btn-ghost:hover,
    .btn-ghost:focus-visible {
      border-color: var(--accent);
      box-shadow: var(--shadow-soft);
    }

    .section {
      padding: 72px 0;
    }

    .section-tight {
      padding: 48px 0;
    }

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

    .section-title {
      font-size: clamp(26px, 3vw, 42px);
      line-height: 1.15;
      font-weight: 950;
      letter-spacing: 0;
      margin: 0;
    }

    .section-desc {
      max-width: 680px;
      color: var(--muted);
      margin: 12px 0 0;
      font-size: 16px;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      padding: 7px 11px;
      border-radius: 999px;
      font-size: 13px;
      font-weight: 900;
      background: rgba(255, 77, 46, .10);
      color: var(--accent-strong);
      border: 1px solid rgba(255, 77, 46, .20);
    }

    .hero {
      padding: 26px 0 56px;
    }

    .hero-stage {
      position: relative;
      min-height: 560px;
      overflow: hidden;
      border-radius: 28px;
      background:
        linear-gradient(90deg, rgba(20, 20, 20, .88), rgba(20, 20, 20, .56), rgba(20, 20, 20, .18)),
        repeating-linear-gradient(135deg, rgba(255, 255, 255, .10) 0 1px, transparent 1px 18px),
        linear-gradient(135deg, #20231d 0%, #36402f 45%, #ff4d2e 100%);
      box-shadow: var(--shadow);
      color: #fff;
    }

    .hero-stage::after {
      content: "";
      position: absolute;
      inset: auto 26px 24px auto;
      width: min(430px, 48vw);
      height: 270px;
      border-radius: 26px;
      border: 1px solid rgba(255, 255, 255, .20);
      background:
        linear-gradient(180deg, rgba(255, 255, 255, .22), rgba(255, 255, 255, .08)),
        repeating-linear-gradient(90deg, rgba(216, 255, 62, .28) 0 22px, transparent 22px 34px);
      opacity: .82;
    }

    .hero-overlay-nav {
      position: absolute;
      top: 22px;
      left: 22px;
      right: 22px;
      z-index: 2;
      display: flex;
      gap: 10px;
      overflow-x: auto;
      padding-bottom: 4px;
      scrollbar-width: none;
    }

    .hero-overlay-nav::-webkit-scrollbar {
      display: none;
    }

    .hero-chip {
      padding: 9px 13px;
      color: rgba(255, 255, 255, .86);
      background: rgba(255, 255, 255, .12);
      border-color: rgba(255, 255, 255, .18);
      backdrop-filter: blur(12px);
      font-weight: 900;
      white-space: nowrap;
    }

    .hero-chip.active,
    .hero-chip:hover,
    .hero-chip:focus-visible {
      color: #111;
      background: var(--lime);
      outline: none;
    }

    .hero-content {
      position: relative;
      z-index: 3;
      width: min(760px, 100%);
      padding: 116px 42px 42px;
    }

    .hero h1 {
      margin: 18px 0 16px;
      font-size: clamp(38px, 7vw, 82px);
      line-height: .98;
      font-weight: 1000;
      letter-spacing: 0;
      overflow-wrap: anywhere;
    }

    .hero-lead {
      max-width: 690px;
      color: rgba(255, 255, 255, .84);
      font-size: clamp(17px, 2vw, 21px);
      margin: 0 0 26px;
    }

    .hero-actions,
    .cta-actions {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }

    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 12px;
      margin-top: 34px;
      max-width: 760px;
    }

    .metric-card {
      padding: 15px;
      border-radius: var(--radius-sm);
      background: rgba(255, 255, 255, .12);
      border: 1px solid rgba(255, 255, 255, .16);
      backdrop-filter: blur(10px);
    }

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

    .metric-card span {
      display: block;
      margin-top: 4px;
      color: rgba(255, 255, 255, .75);
      font-size: 13px;
    }

    .tier-ladder {
      display: grid;
      grid-template-columns: 1fr 1.15fr 1.35fr;
      gap: 16px;
      align-items: stretch;
    }

    .ladder-card,
    .plan-card,
    .vertical-card,
    .news-panel,
    .faq-card,
    .entry-card {
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      box-shadow: var(--shadow-soft);
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }

    .ladder-card:hover,
    .plan-card:hover,
    .vertical-card:hover,
    .entry-card:hover {
      transform: translateY(-4px);
      border-color: rgba(255, 77, 46, .42);
      box-shadow: var(--shadow);
    }

    .ladder-card {
      padding: 22px;
      min-height: 210px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .ladder-card.featured {
      background: var(--dark);
      color: #fff;
      border-color: rgba(30, 230, 183, .45);
    }

    .ladder-card h3 {
      margin: 12px 0 8px;
      font-size: 24px;
      font-weight: 950;
    }

    .ladder-card p {
      margin: 0;
      color: var(--muted);
    }

    .ladder-card.featured p {
      color: rgba(255, 255, 255, .72);
    }

    .price-tag {
      margin-top: 18px;
      display: inline-flex;
      align-items: baseline;
      gap: 4px;
      font-weight: 950;
      color: var(--accent);
    }

    .featured .price-tag {
      color: var(--lime);
    }

    .compare-wrap {
      overflow-x: auto;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--surface);
      box-shadow: var(--shadow-soft);
    }

    .compare-table {
      width: 100%;
      min-width: 760px;
      border-collapse: separate;
      border-spacing: 0;
    }

    .compare-table th,
    .compare-table td {
      padding: 18px 16px;
      text-align: left;
      border-bottom: 1px solid var(--line);
      vertical-align: middle;
    }

    .compare-table th {
      background: #f3f5f1;
      font-size: 14px;
      color: var(--muted);
      font-weight: 950;
    }

    .compare-table tr:last-child td {
      border-bottom: 0;
    }

    .compare-table td:first-child {
      font-weight: 950;
      color: var(--ink);
    }

    .check {
      color: #0fa77e;
      font-weight: 950;
    }

    .hot-cell {
      background: rgba(255, 77, 46, .08);
      color: var(--accent-strong);
      font-weight: 950;
    }

    .guard-strip {
      background: var(--dark);
      color: #fff;
      border-radius: 22px;
      padding: 22px;
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 14px;
      box-shadow: var(--shadow);
    }

    .guard-item {
      padding: 18px;
      border-radius: var(--radius-sm);
      background: rgba(255, 255, 255, .08);
      border: 1px solid rgba(255, 255, 255, .12);
    }

    .guard-icon {
      width: 38px;
      height: 38px;
      border-radius: 12px;
      display: grid;
      place-items: center;
      background: var(--cyan);
      color: #07110e;
      font-weight: 950;
      margin-bottom: 12px;
    }

    .guard-item h3 {
      margin: 0 0 6px;
      font-size: 17px;
      font-weight: 950;
    }

    .guard-item p {
      margin: 0;
      color: rgba(255, 255, 255, .70);
      font-size: 14px;
    }

    .news-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.6fr) minmax(280px, .8fr);
      gap: 18px;
      align-items: start;
    }

    .news-panel {
      padding: 22px;
    }

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

    .news-list li + li {
      border-top: 1px solid var(--line);
    }

    .news-link {
      display: grid;
      grid-template-columns: 92px minmax(0, 1fr) auto;
      gap: 14px;
      align-items: center;
      padding: 16px 0;
    }

    .news-link:hover .news-title,
    .news-link:focus-visible .news-title {
      color: var(--accent-strong);
    }

    .news-date {
      color: var(--muted);
      font-size: 13px;
      font-weight: 800;
    }

    .news-title {
      font-weight: 950;
      overflow-wrap: anywhere;
      transition: color .18s ease;
    }

    .news-desc {
      margin-top: 4px;
      color: var(--muted);
      font-size: 14px;
    }

    .arrow {
      color: var(--accent);
      font-weight: 950;
    }

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

    .recommend-card {
      padding: 16px;
      border-radius: var(--radius-sm);
      background: #f7faf5;
      border: 1px solid var(--line);
    }

    .recommend-card strong {
      display: block;
      margin-bottom: 6px;
      font-size: 18px;
    }

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

    .campaign {
      border-radius: 26px;
      overflow: hidden;
      background:
        linear-gradient(135deg, rgba(255, 77, 46, .96), rgba(255, 116, 46, .88)),
        var(--accent);
      color: #fff;
      box-shadow: var(--shadow);
    }

    .campaign-inner {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 18px;
      padding: 32px;
      align-items: center;
    }

    .campaign h2 {
      margin: 10px 0 12px;
      font-size: clamp(28px, 4vw, 48px);
      line-height: 1.08;
      font-weight: 1000;
    }

    .campaign p {
      margin: 0;
      color: rgba(255, 255, 255, .86);
    }

    .campaign-box {
      background: rgba(20, 20, 20, .20);
      border: 1px solid rgba(255, 255, 255, .20);
      border-radius: 20px;
      padding: 18px;
    }

    .countdown {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 10px;
      margin-top: 18px;
    }

    .countdown span {
      display: block;
      padding: 14px 10px;
      border-radius: 14px;
      background: rgba(255, 255, 255, .16);
      text-align: center;
      font-weight: 950;
    }

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

    .vertical-card {
      overflow: hidden;
    }

    .card-visual {
      min-height: 150px;
      padding: 16px;
      display: flex;
      align-items: end;
      background:
        linear-gradient(135deg, rgba(30, 230, 183, .95), rgba(216, 255, 62, .86)),
        #1ee6b7;
      color: #101310;
    }

    .card-visual.alt {
      background:
        linear-gradient(135deg, rgba(255, 77, 46, .96), rgba(255, 214, 46, .82)),
        #ff4d2e;
    }

    .card-visual.dark {
      background:
        linear-gradient(135deg, #20231d, #444d3b),
        #20231d;
      color: #fff;
    }

    .card-visual strong {
      font-size: 25px;
      line-height: 1.08;
      font-weight: 1000;
    }

    .card-body {
      padding: 18px;
    }

    .card-body h3 {
      margin: 0 0 8px;
      font-size: 18px;
      font-weight: 950;
    }

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

    .status-line {
      height: 7px;
      margin-top: 16px;
      border-radius: 999px;
      background: #edf1ea;
      overflow: hidden;
    }

    .status-line span {
      display: block;
      height: 100%;
      border-radius: inherit;
      background: var(--accent);
    }

    .entry-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 14px;
    }

    .entry-card {
      padding: 18px;
    }

    .entry-card .icon {
      width: 42px;
      height: 42px;
      border-radius: 14px;
      display: grid;
      place-items: center;
      margin-bottom: 14px;
      background: rgba(255, 77, 46, .10);
      color: var(--accent-strong);
      font-weight: 950;
    }

    .entry-card h3 {
      margin: 0 0 7px;
      font-size: 18px;
      font-weight: 950;
    }

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

    .faq-wrap {
      display: grid;
      grid-template-columns: .78fr 1.22fr;
      gap: 22px;
      align-items: start;
    }

    .faq-card {
      padding: 12px;
    }

    details {
      border-radius: 14px;
      border: 1px solid transparent;
      transition: background .18s ease, border-color .18s ease;
    }

    details + details {
      margin-top: 8px;
    }

    details[open] {
      background: #f7faf5;
      border-color: var(--line);
    }

    summary {
      cursor: pointer;
      list-style: none;
      padding: 16px;
      font-weight: 950;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
    }

    summary::-webkit-details-marker {
      display: none;
    }

    summary::after {
      content: "+";
      width: 26px;
      height: 26px;
      border-radius: 999px;
      display: grid;
      place-items: center;
      background: var(--surface-soft);
      color: var(--accent-strong);
      flex: 0 0 auto;
    }

    details[open] summary::after {
      content: "−";
      background: var(--accent);
      color: #fff;
    }

    details p {
      margin: 0;
      padding: 0 16px 16px;
      color: var(--muted);
    }

    .final-cta {
      background: var(--dark);
      color: #fff;
      border-radius: 28px;
      padding: 38px;
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 22px;
      align-items: center;
      box-shadow: var(--shadow);
      overflow: hidden;
      position: relative;
    }

    .final-cta::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, rgba(255, 77, 46, .28), transparent 62%);
      pointer-events: none;
    }

    .final-cta > * {
      position: relative;
      z-index: 1;
    }

    .final-cta h2 {
      margin: 0 0 10px;
      font-size: clamp(28px, 4vw, 48px);
      line-height: 1.1;
      font-weight: 1000;
    }

    .final-cta p {
      margin: 0;
      color: rgba(255, 255, 255, .72);
      max-width: 720px;
    }

    .site-footer {
      padding: 44px 0 28px;
      background: #11130f;
      color: #fff;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr .8fr .8fr;
      gap: 24px;
      padding-bottom: 30px;
      border-bottom: 1px solid rgba(255, 255, 255, .12);
    }

    .footer-brand {
      font-size: 18px;
      font-weight: 950;
      margin-bottom: 10px;
      overflow-wrap: anywhere;
    }

    .footer-text {
      color: rgba(255, 255, 255, .66);
      margin: 0;
      max-width: 560px;
    }

    .footer-title {
      font-weight: 950;
      margin-bottom: 12px;
    }

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

    .footer-links a {
      color: rgba(255, 255, 255, .66);
      transition: color .18s ease;
    }

    .footer-links a:hover,
    .footer-links a:focus-visible {
      color: var(--lime);
      outline: none;
    }

    .copyright {
      padding-top: 22px;
      color: rgba(255, 255, 255, .52);
      font-size: 14px;
    }

    @media (max-width: 1024px) {
      .tier-ladder,
      .content-flow,
      .entry-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

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

      .hero-stage::after {
        width: 360px;
        height: 210px;
        opacity: .52;
      }
    }

    @media (max-width: 768px) {
      .site-container {
        width: min(100% - 24px, 1180px);
      }

      .topbar {
        min-height: 66px;
      }

      .brand-text {
        font-size: 14px;
        max-width: 178px;
      }

      .header-actions .btn-ghost {
        display: none;
      }

      .nav-shell {
        margin-left: -12px;
        margin-right: -12px;
        padding-left: 12px;
      }

      .hero-stage {
        min-height: auto;
        border-radius: 22px;
      }

      .hero-stage::after {
        display: none;
      }

      .hero-content {
        padding: 104px 22px 28px;
      }

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

      .section {
        padding: 52px 0;
      }

      .section-head {
        display: block;
      }

      .tier-ladder,
      .news-grid,
      .campaign-inner,
      .faq-wrap,
      .final-cta,
      .footer-grid {
        grid-template-columns: 1fr;
      }

      .final-cta {
        padding: 28px;
      }

      .guard-strip,
      .content-flow,
      .entry-grid {
        grid-template-columns: 1fr;
      }

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

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

    @media (max-width: 520px) {
      .brand-mark {
        width: 34px;
        height: 34px;
      }

      .btn {
        min-height: 40px;
        padding: 10px 13px;
        font-size: 14px;
      }

      .header-actions .btn-primary {
        padding-inline: 12px;
      }

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

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

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

      .metric-card strong {
        font-size: 20px;
      }

      .campaign-inner {
        padding: 22px;
      }

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

      .compare-table {
        min-width: 680px;
      }
    }

/* roulang page: category1 */
:root {
      --color-ink: #111111;
      --color-muted: #666b73;
      --color-soft: #f6f7f9;
      --color-card: #ffffff;
      --color-line: #e7e8ec;
      --color-primary: #ff4d1d;
      --color-primary-dark: #df3810;
      --color-accent: #10e0a2;
      --color-warm: #fff1eb;
      --radius-sm: 10px;
      --radius-md: 14px;
      --radius-lg: 22px;
      --shadow-card: 0 16px 44px rgba(20, 20, 20, 0.08);
      --shadow-hover: 0 20px 54px rgba(255, 77, 29, 0.16);
      --container: 1180px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      min-height: 100vh;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--color-ink);
      line-height: 1.65;
      background:
        radial-gradient(circle at 8% 0%, rgba(255, 77, 29, 0.10), transparent 28%),
        linear-gradient(180deg, #fffaf7 0%, #f7f8fa 38%, #ffffff 100%);
    }

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

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

    button,
    input {
      font: inherit;
    }

    button {
      cursor: pointer;
    }

    :focus-visible {
      outline: 3px solid rgba(16, 224, 162, 0.55);
      outline-offset: 3px;
    }

    .site-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, 0.88);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(231, 232, 236, 0.9);
    }

    .topbar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding: 16px 0 10px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      min-width: 0;
      font-weight: 900;
      letter-spacing: 0;
    }

    .brand-mark {
      width: 38px;
      height: 38px;
      border-radius: 12px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      background: linear-gradient(135deg, var(--color-primary), #ff7b2e);
      box-shadow: 0 10px 26px rgba(255, 77, 29, 0.28);
      flex: 0 0 auto;
    }

    .brand-text {
      font-size: 17px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      max-width: 46vw;
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 10px;
      flex: 0 0 auto;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 42px;
      padding: 10px 18px;
      border-radius: 999px;
      border: 1px solid transparent;
      font-size: 14px;
      font-weight: 800;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease, background .2s ease, color .2s ease;
      white-space: nowrap;
    }

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

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

    .btn-primary {
      color: #fff;
      background: var(--color-primary);
      box-shadow: 0 12px 28px rgba(255, 77, 29, 0.28);
    }

    .btn-primary:hover {
      background: var(--color-primary-dark);
      box-shadow: var(--shadow-hover);
    }

    .btn-ghost {
      color: var(--color-ink);
      background: #fff;
      border-color: var(--color-line);
    }

    .btn-ghost:hover {
      border-color: var(--color-primary);
      color: var(--color-primary-dark);
    }

    .btn-dark {
      color: #fff;
      background: #111;
      border-color: #111;
    }

    .btn-dark:hover {
      background: #242424;
      box-shadow: 0 12px 28px rgba(17, 17, 17, 0.22);
    }

    .nav-shell {
      padding: 0 0 14px;
      overflow: hidden;
    }

    .seg-nav {
      display: flex;
      gap: 10px;
      overflow-x: auto;
      padding: 4px 0 2px;
      scrollbar-width: none;
    }

    .seg-nav::-webkit-scrollbar {
      display: none;
    }

    .nav-chip {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 38px;
      padding: 8px 16px;
      border: 1px solid var(--color-line);
      border-radius: 999px;
      background: #fff;
      color: #333840;
      font-size: 14px;
      font-weight: 800;
      white-space: nowrap;
      transition: background .2s ease, color .2s ease, border-color .2s ease, transform .2s ease;
    }

    .nav-chip:hover {
      transform: translateY(-1px);
      border-color: rgba(255, 77, 29, 0.45);
      color: var(--color-primary-dark);
    }

    .nav-chip.active {
      color: #fff;
      background: #111;
      border-color: #111;
    }

    .hero {
      padding: 54px 0 42px;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 5fr 7fr;
      gap: 34px;
      align-items: center;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      border-radius: 999px;
      background: rgba(16, 224, 162, 0.16);
      color: #057957;
      font-size: 13px;
      font-weight: 900;
      border: 1px solid rgba(16, 224, 162, 0.28);
    }

    .hero h1 {
      margin: 18px 0 14px;
      font-size: clamp(36px, 5vw, 64px);
      line-height: 1.05;
      font-weight: 950;
      letter-spacing: 0;
    }

    .hero-lead {
      max-width: 650px;
      color: #4d535b;
      font-size: 18px;
      line-height: 1.8;
    }

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

    .kpi-row {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 10px;
      margin-top: 28px;
    }

    .kpi {
      padding: 14px;
      border-radius: var(--radius-md);
      background: rgba(255, 255, 255, 0.78);
      border: 1px solid var(--color-line);
    }

    .kpi strong {
      display: block;
      font-size: 22px;
      line-height: 1.1;
      font-weight: 950;
    }

    .kpi span {
      display: block;
      margin-top: 4px;
      color: var(--color-muted);
      font-size: 12px;
      font-weight: 700;
    }

    .dp-cover {
      position: relative;
      min-height: 430px;
      border-radius: 28px;
      overflow: hidden;
      border: 1px solid rgba(17, 17, 17, 0.08);
      box-shadow: 0 28px 70px rgba(17, 17, 17, 0.16);
      transform: rotate(-1.6deg);
      background:
        linear-gradient(135deg, rgba(17, 17, 17, 0.86), rgba(17, 17, 17, 0.52)),
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='1200' height='760' viewBox='0 0 1200 760'%3E%3Crect width='1200' height='760' fill='%23f7f7f7'/%3E%3Cg fill='none' stroke='%23ff4d1d' stroke-width='3' opacity='.8'%3E%3Cpath d='M80 120h360v160H80zM520 88h560v92H520zM520 220h280v210H520zM840 220h240v210H840zM120 350h340v260H120zM520 480h560v96H520zM520 620h420v58H520z'/%3E%3C/g%3E%3Cg fill='%2310e0a2' opacity='.9'%3E%3Ccircle cx='1020' cy='126' r='24'/%3E%3Crect x='160' y='410' width='120' height='18' rx='9'/%3E%3Crect x='560' y='258' width='160' height='18' rx='9'/%3E%3C/g%3E%3Cg fill='%23111111' opacity='.76'%3E%3Crect x='115' y='155' width='220' height='22' rx='11'/%3E%3Crect x='115' y='198' width='280' height='16' rx='8'/%3E%3Crect x='560' y='118' width='330' height='18' rx='9'/%3E%3Crect x='560' y='312' width='150' height='14' rx='7'/%3E%3Crect x='880' y='312' width='120' height='14' rx='7'/%3E%3Crect x='560' y='512' width='360' height='16' rx='8'/%3E%3C/g%3E%3C/svg%3E") center/cover no-repeat;
    }

    .dp-cover::after {
      content: "";
      position: absolute;
      inset: 18px;
      border-radius: 22px;
      border: 1px solid rgba(255,255,255,.22);
      pointer-events: none;
    }

    .cover-panel {
      position: absolute;
      left: 26px;
      right: 26px;
      bottom: 26px;
      padding: 22px;
      border-radius: 20px;
      color: #fff;
      background: rgba(17, 17, 17, 0.72);
      backdrop-filter: blur(14px);
      border: 1px solid rgba(255, 255, 255, 0.16);
      transform: rotate(1.6deg);
    }

    .cover-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 14px;
    }

    .cover-tags span,
    .tag {
      display: inline-flex;
      align-items: center;
      min-height: 28px;
      padding: 5px 10px;
      border-radius: 999px;
      font-size: 12px;
      font-weight: 900;
      background: rgba(255, 255, 255, 0.14);
      border: 1px solid rgba(255,255,255,.18);
    }

    .cover-panel h2 {
      font-size: 28px;
      line-height: 1.18;
      font-weight: 950;
      margin: 0 0 8px;
    }

    .cover-panel p {
      margin: 0;
      color: rgba(255,255,255,.82);
      font-size: 14px;
    }

    .section {
      padding: 42px 0;
    }

    .section-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 24px;
      margin-bottom: 22px;
    }

    .section-kicker {
      color: var(--color-primary-dark);
      font-size: 13px;
      font-weight: 950;
      margin-bottom: 6px;
    }

    .section-title {
      font-size: clamp(26px, 3.4vw, 42px);
      line-height: 1.18;
      font-weight: 950;
      margin: 0;
    }

    .section-desc {
      color: var(--color-muted);
      max-width: 560px;
      margin: 8px 0 0;
    }

    .filter-band {
      padding: 16px;
      border-radius: var(--radius-lg);
      background: #111;
      color: #fff;
      box-shadow: var(--shadow-card);
    }

    .filter-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
    }

    .filter-chips {
      display: flex;
      gap: 10px;
      overflow-x: auto;
      padding-bottom: 2px;
      scrollbar-width: none;
    }

    .filter-chips::-webkit-scrollbar {
      display: none;
    }

    .filter-chip {
      flex: 0 0 auto;
      border: 1px solid rgba(255,255,255,.18);
      background: rgba(255,255,255,.08);
      color: #fff;
      border-radius: 999px;
      padding: 9px 13px;
      font-size: 13px;
      font-weight: 900;
      transition: background .2s ease, transform .2s ease, border-color .2s ease;
    }

    .filter-chip:hover,
    .filter-chip.active {
      background: var(--color-primary);
      border-color: var(--color-primary);
      transform: translateY(-1px);
    }

    .search-box {
      min-width: 260px;
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 9px 12px;
      border-radius: 999px;
      background: #fff;
      color: #111;
      border: 1px solid rgba(255,255,255,.2);
    }

    .search-box input {
      width: 100%;
      border: 0;
      outline: 0;
      background: transparent;
      color: #111;
      font-size: 14px;
    }

    .search-box input::placeholder {
      color: #8a8f98;
    }

    .level-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 16px;
    }

    .level-card,
    .item-card,
    .recommend-card,
    .faq-card {
      border: 1px solid var(--color-line);
      border-radius: var(--radius-md);
      background: var(--color-card);
      box-shadow: 0 10px 30px rgba(17,17,17,.05);
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }

    .level-card:hover,
    .item-card:hover,
    .recommend-card:hover,
    .faq-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-card);
      border-color: rgba(255, 77, 29, 0.32);
    }

    .level-card {
      padding: 20px;
      position: relative;
      overflow: hidden;
    }

    .level-card.featured {
      background: linear-gradient(180deg, #fff7f2 0%, #fff 78%);
      border-color: rgba(255, 77, 29, 0.35);
    }

    .level-card.featured::before {
      content: "推荐";
      position: absolute;
      top: 16px;
      right: 16px;
      padding: 4px 9px;
      border-radius: 999px;
      color: #fff;
      background: var(--color-primary);
      font-size: 12px;
      font-weight: 900;
    }

    .level-name {
      font-size: 20px;
      font-weight: 950;
      margin: 0;
    }

    .level-price {
      margin-top: 10px;
      font-size: 34px;
      line-height: 1;
      font-weight: 950;
    }

    .level-note {
      color: var(--color-muted);
      font-size: 14px;
      margin: 10px 0 16px;
    }

    .check-list {
      display: grid;
      gap: 10px;
      color: #333840;
      font-size: 14px;
    }

    .check-list li {
      display: flex;
      gap: 8px;
      align-items: flex-start;
    }

    .check-list li::before {
      content: "✓";
      flex: 0 0 auto;
      color: #059669;
      font-weight: 950;
    }

    .content-layout {
      display: grid;
      grid-template-columns: minmax(0, 1.8fr) minmax(280px, .8fr);
      gap: 20px;
      align-items: start;
    }

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

    .item-card {
      padding: 16px;
      min-height: 230px;
      display: flex;
      flex-direction: column;
    }

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

    .badge {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 26px;
      padding: 4px 9px;
      border-radius: 999px;
      background: var(--color-warm);
      color: var(--color-primary-dark);
      font-size: 12px;
      font-weight: 950;
    }

    .status {
      color: #057957;
      background: rgba(16, 224, 162, 0.16);
      border: 1px solid rgba(16, 224, 162, 0.25);
    }

    .item-card h3 {
      font-size: 19px;
      line-height: 1.35;
      font-weight: 950;
      margin: 0 0 8px;
    }

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

    .item-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: auto;
      padding-top: 18px;
    }

    .meta-pill {
      display: inline-flex;
      padding: 5px 9px;
      border-radius: 999px;
      background: #f3f4f6;
      color: #555b64;
      font-size: 12px;
      font-weight: 800;
    }

    .side-panel {
      position: sticky;
      top: 130px;
      display: grid;
      gap: 16px;
    }

    .rank-box {
      border-radius: var(--radius-lg);
      background: #111;
      color: #fff;
      padding: 20px;
    }

    .rank-box h3 {
      font-size: 22px;
      font-weight: 950;
      margin: 0 0 14px;
    }

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

    .rank-list li {
      display: flex;
      align-items: center;
      gap: 10px;
      padding-bottom: 12px;
      border-bottom: 1px solid rgba(255,255,255,.12);
      color: rgba(255,255,255,.86);
      font-size: 14px;
    }

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

    .rank-num {
      width: 26px;
      height: 26px;
      border-radius: 9px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: #111;
      background: var(--color-accent);
      font-weight: 950;
      flex: 0 0 auto;
    }

    .notice-box {
      border: 1px solid var(--color-line);
      border-radius: var(--radius-lg);
      padding: 18px;
      background: #fff;
    }

    .notice-box h3 {
      font-size: 18px;
      font-weight: 950;
      margin: 0 0 8px;
    }

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

    .compare-wrap {
      overflow-x: auto;
      border: 1px solid var(--color-line);
      border-radius: var(--radius-lg);
      background: #fff;
      box-shadow: 0 10px 30px rgba(17,17,17,.05);
    }

    .compare-table {
      width: 100%;
      min-width: 760px;
      border-collapse: collapse;
    }

    .compare-table th,
    .compare-table td {
      padding: 16px;
      border-bottom: 1px solid var(--color-line);
      text-align: left;
      font-size: 14px;
    }

    .compare-table th {
      background: #111;
      color: #fff;
      font-weight: 950;
    }

    .compare-table tr:last-child td {
      border-bottom: 0;
    }

    .compare-table td:not(:first-child) {
      font-weight: 800;
    }

    .highlight-cell {
      color: var(--color-primary-dark);
      background: #fff7f2;
    }

    .recommend-grid {
      display: grid;
      grid-template-columns: 1.15fr .85fr;
      gap: 16px;
    }

    .recommend-card {
      padding: 20px;
    }

    .recommend-card h3 {
      font-size: 21px;
      font-weight: 950;
      margin: 0 0 8px;
    }

    .recommend-card p {
      color: var(--color-muted);
      margin: 0 0 16px;
    }

    .tag-wall {
      display: flex;
      flex-wrap: wrap;
      gap: 9px;
    }

    .tag-wall span {
      display: inline-flex;
      padding: 7px 11px;
      border-radius: 999px;
      background: #f3f4f6;
      color: #333840;
      font-size: 13px;
      font-weight: 850;
      border: 1px solid transparent;
      transition: border-color .2s ease, background .2s ease, color .2s ease;
    }

    .tag-wall span:hover {
      border-color: rgba(255,77,29,.35);
      background: #fff7f2;
      color: var(--color-primary-dark);
    }

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

    .faq-card {
      padding: 0;
      overflow: hidden;
    }

    .faq-card summary {
      list-style: none;
      padding: 18px 20px;
      font-size: 17px;
      font-weight: 950;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
    }

    .faq-card summary::-webkit-details-marker {
      display: none;
    }

    .faq-card summary::after {
      content: "+";
      width: 28px;
      height: 28px;
      border-radius: 999px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--color-warm);
      color: var(--color-primary-dark);
      font-weight: 950;
      flex: 0 0 auto;
    }

    .faq-card[open] summary::after {
      content: "−";
      background: var(--color-primary);
      color: #fff;
    }

    .faq-card p {
      margin: 0;
      padding: 0 20px 20px;
      color: var(--color-muted);
    }

    .cta-panel {
      position: relative;
      overflow: hidden;
      border-radius: 28px;
      padding: 34px;
      color: #fff;
      background:
        linear-gradient(135deg, rgba(255, 77, 29, 0.96), rgba(17, 17, 17, 0.96)),
        radial-gradient(circle at 80% 18%, rgba(16, 224, 162, .5), transparent 30%);
      box-shadow: 0 24px 70px rgba(255, 77, 29, .22);
    }

    .cta-panel h2 {
      font-size: clamp(28px, 4vw, 46px);
      line-height: 1.15;
      font-weight: 950;
      margin: 0 0 10px;
    }

    .cta-panel p {
      max-width: 700px;
      margin: 0;
      color: rgba(255,255,255,.86);
    }

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

    .site-footer {
      margin-top: 36px;
      padding: 44px 0 26px;
      background: #111;
      color: #fff;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.35fr .7fr .7fr;
      gap: 28px;
      padding-bottom: 28px;
      border-bottom: 1px solid rgba(255,255,255,.12);
    }

    .footer-brand {
      font-size: 20px;
      font-weight: 950;
      margin-bottom: 10px;
    }

    .footer-text {
      margin: 0;
      color: rgba(255,255,255,.68);
      max-width: 560px;
    }

    .footer-title {
      font-size: 14px;
      font-weight: 950;
      margin-bottom: 12px;
      color: rgba(255,255,255,.94);
    }

    .footer-links {
      display: grid;
      gap: 8px;
    }

    .footer-links a {
      color: rgba(255,255,255,.68);
      transition: color .2s ease, transform .2s ease;
    }

    .footer-links a:hover {
      color: #fff;
      transform: translateX(2px);
    }

    .copyright {
      padding-top: 20px;
      color: rgba(255,255,255,.55);
      font-size: 13px;
    }

    @media (max-width: 1024px) {
      .hero-grid,
      .content-layout,
      .recommend-grid {
        grid-template-columns: 1fr;
      }

      .dp-cover {
        min-height: 380px;
      }

      .side-panel {
        position: static;
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }
    }

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

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

      .brand-text {
        max-width: calc(100vw - 92px);
      }

      .header-actions {
        width: 100%;
        overflow-x: auto;
        padding-bottom: 2px;
      }

      .hero {
        padding-top: 34px;
      }

      .hero-grid,
      .level-grid,
      .item-flow,
      .side-panel,
      .footer-grid {
        grid-template-columns: 1fr;
      }

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

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

      .filter-row {
        align-items: stretch;
      }

      .search-box {
        width: 100%;
        min-width: 0;
      }

      .dp-cover {
        min-height: 340px;
        transform: none;
      }

      .cover-panel {
        left: 18px;
        right: 18px;
        bottom: 18px;
        transform: none;
      }

      .cover-panel h2 {
        font-size: 22px;
      }

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

    @media (max-width: 520px) {
      .btn {
        min-height: 40px;
        padding: 9px 14px;
        font-size: 13px;
      }

      .hero h1 {
        font-size: 34px;
      }

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

      .section {
        padding: 32px 0;
      }

      .level-price {
        font-size: 28px;
      }

      .item-card {
        min-height: auto;
      }

      .compare-table th,
      .compare-table td {
        padding: 13px;
      }
    }