/* roulang page: index */
:root {
      --bg-dark: #0F0F12;
      --bg-dark-2: #15120F;
      --bg-warm: #FFF7ED;
      --bg-soft: #FFFBF5;
      --text: #171717;
      --muted: #6B7280;
      --muted-dark: #A3A3A3;
      --white: #FFFFFF;
      --orange: #F97316;
      --red: #EF4444;
      --red-deep: #DC2626;
      --yellow: #FACC15;
      --cyan: #22D3EE;
      --border: #FED7AA;
      --border-soft: #FFE4C7;
      --radius-sm: 12px;
      --radius: 16px;
      --radius-lg: 20px;
      --shadow: 0 16px 36px rgba(249, 115, 22, .14);
      --shadow-strong: 0 22px 54px rgba(239, 68, 68, .22);
      --container: 1200px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      color: var(--text);
      background: var(--bg-soft);
      line-height: 1.7;
      text-rendering: optimizeLegibility;
    }

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

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

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

    button {
      border: 0;
      cursor: pointer;
    }

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

    ::selection {
      background: rgba(249, 115, 22, .25);
    }

    .site-container {
      width: min(100% - 32px, var(--container));
      margin-inline: auto;
    }

    .promo-strip {
      background: linear-gradient(90deg, var(--red-deep), var(--orange));
      color: #fff;
      font-size: 14px;
      font-weight: 700;
      letter-spacing: 0;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(15, 15, 18, .92);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(249, 115, 22, .35);
    }

    .nav-shell {
      min-height: 76px;
      display: grid;
      grid-template-columns: 1fr auto 1fr;
      align-items: center;
      gap: 28px;
    }

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

    .nav-side.left {
      justify-content: flex-end;
    }

    .nav-side.right {
      justify-content: flex-start;
    }

    .brand-mark {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: #fff;
      font-weight: 900;
      white-space: nowrap;
      letter-spacing: 0;
    }

    .brand-icon {
      width: 34px;
      height: 34px;
      border-radius: 999px;
      background: radial-gradient(circle at 32% 28%, var(--yellow), var(--orange) 45%, var(--red) 76%);
      box-shadow: 0 0 0 4px rgba(249, 115, 22, .14), 0 0 26px rgba(239, 68, 68, .38);
      position: relative;
    }

    .brand-icon::after {
      content: "";
      position: absolute;
      inset: 9px 11px;
      border-left: 4px solid #fff;
      border-bottom: 4px solid #fff;
      transform: skew(-12deg) rotate(-28deg);
      border-radius: 2px;
    }

    .nav-link {
      color: rgba(255, 255, 255, .78);
      padding: 9px 14px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 700;
      transition: color .2s ease, background .2s ease, transform .2s ease;
    }

    .nav-link:hover,
    .nav-link:focus-visible {
      color: #fff;
      background: rgba(255, 255, 255, .08);
      transform: translateY(-1px);
    }

    .nav-link.active {
      color: #fff;
      background: linear-gradient(135deg, rgba(249, 115, 22, .95), rgba(239, 68, 68, .95));
      box-shadow: 0 10px 24px rgba(239, 68, 68, .2);
    }

    .nav-cta,
    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border-radius: 999px;
      background: linear-gradient(135deg, var(--orange), var(--red));
      color: #fff;
      font-weight: 900;
      padding: 12px 18px;
      box-shadow: 0 14px 30px rgba(239, 68, 68, .26);
      transition: transform .2s ease, box-shadow .2s ease, filter .2s ease;
      min-height: 46px;
    }

    .nav-cta:hover,
    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-strong);
      filter: brightness(1.05);
    }

    .btn-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border-radius: 999px;
      border: 1px solid rgba(255, 255, 255, .28);
      color: #fff;
      font-weight: 800;
      padding: 12px 18px;
      min-height: 46px;
      transition: background .2s ease, border-color .2s ease, transform .2s ease;
    }

    .btn-secondary:hover {
      background: rgba(255, 255, 255, .1);
      border-color: rgba(255, 255, 255, .48);
      transform: translateY(-2px);
    }

    .btn-light {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 999px;
      border: 1px solid var(--border);
      background: #fff;
      color: var(--red-deep);
      font-weight: 900;
      padding: 11px 17px;
      transition: background .2s ease, transform .2s ease, box-shadow .2s ease;
    }

    .btn-light:hover {
      background: #FFF1E6;
      transform: translateY(-2px);
      box-shadow: var(--shadow);
    }

    .mobile-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: 14px;
      background: rgba(255, 255, 255, .08);
      color: #fff;
      align-items: center;
      justify-content: center;
      border: 1px solid rgba(255, 255, 255, .14);
    }

    .mobile-panel {
      display: none;
      border-top: 1px solid rgba(255, 255, 255, .1);
      padding: 12px 0 18px;
    }

    .mobile-panel.open {
      display: block;
    }

    .hero {
      position: relative;
      overflow: hidden;
      color: #fff;
      background:
        linear-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px),
        radial-gradient(circle at 18% 20%, rgba(249, 115, 22, .24), transparent 30%),
        radial-gradient(circle at 82% 35%, rgba(34, 211, 238, .14), transparent 28%),
        linear-gradient(135deg, #0F0F12 0%, #17110F 56%, #210D0A 100%);
      background-size: 42px 42px, 42px 42px, auto, auto, auto;
      padding: 54px 0 34px;
    }

    .hero::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: 0;
      height: 2px;
      background: linear-gradient(90deg, transparent, var(--orange), var(--cyan), transparent);
      opacity: .75;
    }

    .creator-cover {
      border: 1px solid rgba(255, 255, 255, .12);
      border-radius: 28px;
      background:
        linear-gradient(135deg, rgba(255, 255, 255, .08), rgba(255, 255, 255, .03)),
        linear-gradient(90deg, rgba(249, 115, 22, .18), rgba(239, 68, 68, .12));
      box-shadow: 0 28px 80px rgba(0, 0, 0, .28);
      padding: 28px;
      position: relative;
      overflow: hidden;
    }

    .creator-cover::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        linear-gradient(120deg, transparent 0 45%, rgba(250, 204, 21, .14) 48%, transparent 52% 100%),
        repeating-linear-gradient(90deg, rgba(255,255,255,.08) 0 1px, transparent 1px 24px);
      pointer-events: none;
      opacity: .65;
    }

    .creator-grid {
      position: relative;
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 28px;
      align-items: stretch;
    }

    .profile-row {
      display: flex;
      align-items: center;
      gap: 16px;
      margin-bottom: 24px;
    }

    .avatar-badge {
      width: 72px;
      height: 72px;
      flex: 0 0 auto;
      border-radius: 24px;
      background: linear-gradient(135deg, var(--yellow), var(--orange) 52%, var(--red));
      display: grid;
      place-items: center;
      font-size: 28px;
      font-weight: 900;
      box-shadow: 0 14px 30px rgba(249, 115, 22, .34);
    }

    .hero h1 {
      font-size: clamp(34px, 5vw, 56px);
      line-height: 1.12;
      margin: 0 0 18px;
      letter-spacing: 0;
      max-width: 780px;
      font-weight: 950;
    }

    .hero-intro {
      font-size: 17px;
      color: rgba(255, 255, 255, .78);
      max-width: 720px;
      margin: 0 0 24px;
    }

    .data-badges {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 12px;
      margin: 24px 0;
    }

    .data-badge {
      border: 1px solid rgba(255, 255, 255, .12);
      background: rgba(255, 255, 255, .06);
      border-radius: 16px;
      padding: 14px;
    }

    .data-badge strong {
      display: block;
      color: var(--yellow);
      font-size: 24px;
      line-height: 1.1;
    }

    .data-badge span {
      color: rgba(255, 255, 255, .68);
      font-size: 13px;
    }

    .vertical-stack {
      display: grid;
      gap: 14px;
      align-content: start;
    }

    .screen-card {
      min-height: 136px;
      border-radius: 22px;
      border: 1px solid rgba(255, 255, 255, .14);
      background: rgba(15, 15, 18, .62);
      padding: 18px;
      box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .03);
      transition: transform .2s ease, border-color .2s ease;
    }

    .screen-card:hover {
      transform: translateY(-2px);
      border-color: rgba(249, 115, 22, .55);
    }

    .screen-card:nth-child(2) {
      transform: translateX(22px);
    }

    .screen-card:nth-child(3) {
      transform: translateX(44px);
    }

    .screen-card:nth-child(2):hover,
    .screen-card:nth-child(3):hover {
      transform: translateX(22px) translateY(-2px);
    }

    .screen-card:nth-child(3):hover {
      transform: translateX(44px) translateY(-2px);
    }

    .hotline {
      height: 8px;
      border-radius: 999px;
      background: rgba(255,255,255,.12);
      overflow: hidden;
      margin-top: 14px;
    }

    .hotline span {
      display: block;
      height: 100%;
      border-radius: inherit;
      background: linear-gradient(90deg, var(--orange), var(--red), var(--yellow));
    }

    .section {
      padding: 76px 0;
    }

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

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

    .section-title {
      font-size: clamp(28px, 3.2vw, 38px);
      line-height: 1.2;
      margin: 0 0 10px;
      font-weight: 950;
      letter-spacing: 0;
    }

    .section-desc {
      margin: 0;
      color: var(--muted);
      max-width: 720px;
      font-size: 16px;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      border-radius: 999px;
      padding: 7px 11px;
      font-size: 13px;
      font-weight: 900;
      color: var(--red-deep);
      background: #FFF1E6;
      border: 1px solid var(--border);
    }

    .card {
      border: 1px solid var(--border-soft);
      border-radius: var(--radius-lg);
      background: #fff;
      box-shadow: 0 12px 28px rgba(249, 115, 22, .08);
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }

    .card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow);
      border-color: var(--border);
    }

    .deal-track {
      display: grid;
      grid-auto-flow: column;
      grid-auto-columns: minmax(250px, 1fr);
      gap: 16px;
      overflow-x: auto;
      padding: 4px 4px 18px;
      scrollbar-width: thin;
      scrollbar-color: var(--orange) #FFE4C7;
    }

    .deal-card {
      min-height: 330px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      position: relative;
      overflow: hidden;
      padding: 20px;
      aspect-ratio: 4 / 5;
    }

    .deal-card.featured {
      background: linear-gradient(145deg, #1B120F, #32100B);
      color: #fff;
      border-color: rgba(249, 115, 22, .55);
    }

    .corner {
      position: absolute;
      top: 14px;
      right: -34px;
      transform: rotate(35deg);
      background: var(--red);
      color: #fff;
      font-size: 12px;
      font-weight: 900;
      padding: 6px 42px;
    }

    .price-mark {
      color: var(--red-deep);
      font-size: 34px;
      font-weight: 950;
      line-height: 1;
    }

    .featured .price-mark {
      color: var(--yellow);
    }

    .compare-grid {
      display: grid;
      grid-template-columns: 1fr 1.1fr 1fr;
      gap: 18px;
      align-items: stretch;
    }

    .plan-card {
      padding: 24px;
      display: flex;
      flex-direction: column;
      gap: 18px;
    }

    .plan-card.recommend {
      border-color: rgba(239, 68, 68, .4);
      box-shadow: var(--shadow-strong);
      position: relative;
    }

    .plan-list {
      display: grid;
      gap: 10px;
      color: var(--muted);
      font-size: 15px;
    }

    .plan-list li,
    .check-item {
      display: flex;
      gap: 10px;
      align-items: flex-start;
    }

    .plan-list li::before,
    .check-item::before {
      content: "✓";
      flex: 0 0 auto;
      width: 22px;
      height: 22px;
      border-radius: 999px;
      display: grid;
      place-items: center;
      background: #FFF1E6;
      color: var(--orange);
      font-weight: 950;
      font-size: 13px;
      margin-top: 2px;
    }

    .guard-band {
      background: #15120F;
      color: #fff;
      border-top: 1px solid rgba(249, 115, 22, .34);
      border-bottom: 1px solid rgba(249, 115, 22, .34);
    }

    .guard-grid {
      display: grid;
      grid-template-columns: repeat(5, minmax(0, 1fr));
      gap: 14px;
    }

    .guard-item {
      border: 1px solid rgba(255, 255, 255, .12);
      border-radius: 16px;
      padding: 16px;
      background: rgba(255, 255, 255, .05);
      min-height: 132px;
    }

    .guard-icon {
      width: 42px;
      height: 42px;
      border-radius: 14px;
      display: grid;
      place-items: center;
      color: #191007;
      background: linear-gradient(135deg, var(--yellow), var(--orange));
      font-weight: 950;
      margin-bottom: 12px;
    }

    .checklist-wrap {
      display: grid;
      grid-template-columns: .85fr 1.15fr;
      gap: 26px;
      align-items: start;
    }

    .tag-row {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 18px;
    }

    .filter-tag {
      border-radius: 999px;
      background: #fff;
      color: #7C2D12;
      border: 1px solid var(--border);
      padding: 8px 12px;
      font-size: 14px;
      font-weight: 800;
      transition: background .2s ease, color .2s ease, transform .2s ease;
    }

    .filter-tag:hover,
    .filter-tag.active {
      background: linear-gradient(135deg, var(--orange), var(--red));
      color: #fff;
      transform: translateY(-1px);
    }

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

    .choice-item {
      display: grid;
      grid-template-columns: auto 1fr auto;
      gap: 14px;
      align-items: center;
      padding: 16px;
      border-radius: 16px;
      border: 1px solid var(--border-soft);
      background: #fff;
      transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease;
    }

    .choice-item:hover {
      border-color: var(--orange);
      box-shadow: var(--shadow);
      transform: translateY(-2px);
    }

    .choice-icon {
      width: 44px;
      height: 44px;
      border-radius: 15px;
      display: grid;
      place-items: center;
      background: #FFF1E6;
      color: var(--red-deep);
      font-weight: 950;
    }

    .arrow {
      color: var(--orange);
      font-weight: 950;
      transition: transform .2s ease;
    }

    .choice-item:hover .arrow {
      transform: translateX(4px);
    }

    .proof-row {
      display: grid;
      grid-template-columns: 1.15fr .85fr;
      gap: 22px;
      align-items: stretch;
    }

    .review-marquee {
      overflow: hidden;
      border-radius: 20px;
      border: 1px solid var(--border-soft);
      background: #fff;
      padding: 16px;
    }

    .review-track {
      display: flex;
      gap: 14px;
      animation: scrollReviews 24s linear infinite;
      width: max-content;
    }

    @keyframes scrollReviews {
      from { transform: translateX(0); }
      to { transform: translateX(-50%); }
    }

    .review-card {
      width: 300px;
      border: 1px solid var(--border-soft);
      border-radius: 16px;
      background: #FFFBF5;
      padding: 16px;
    }

    .avatar-dot {
      width: 34px;
      height: 34px;
      border-radius: 999px;
      background: linear-gradient(135deg, var(--orange), var(--red));
      box-shadow: 0 0 0 4px #FFF1E6;
    }

    .stars {
      color: var(--orange);
      letter-spacing: 0;
      font-weight: 950;
    }

    .news-grid {
      display: grid;
      grid-template-columns: 1.25fr .75fr;
      gap: 22px;
    }

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

    .news-link {
      display: grid;
      grid-template-columns: auto 1fr auto;
      gap: 12px;
      align-items: center;
      padding: 15px;
      border-radius: 16px;
      background: #fff;
      border: 1px solid var(--border-soft);
      transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease;
    }

    .news-link:hover {
      border-color: var(--orange);
      transform: translateY(-2px);
      box-shadow: var(--shadow);
    }

    .rank-num {
      width: 34px;
      height: 34px;
      border-radius: 12px;
      display: grid;
      place-items: center;
      background: #FFF1E6;
      color: var(--red-deep);
      font-weight: 950;
    }

    .side-panel {
      border-radius: 20px;
      background: linear-gradient(145deg, #15120F, #26110C);
      color: #fff;
      border: 1px solid rgba(249, 115, 22, .32);
      padding: 22px;
      box-shadow: 0 16px 38px rgba(0,0,0,.18);
    }

    .meter {
      height: 8px;
      border-radius: 999px;
      background: rgba(255,255,255,.12);
      overflow: hidden;
    }

    .meter span {
      display: block;
      height: 100%;
      background: linear-gradient(90deg, var(--orange), var(--red), var(--yellow));
      border-radius: inherit;
    }

    .cta-panel {
      position: relative;
      overflow: hidden;
      border-radius: 28px;
      color: #fff;
      background:
        linear-gradient(135deg, rgba(15,15,18,.92), rgba(38,17,12,.88)),
        linear-gradient(120deg, var(--red), var(--orange));
      border: 1px solid rgba(249, 115, 22, .45);
      box-shadow: var(--shadow-strong);
      padding: 30px;
    }

    .cta-panel::before {
      content: "";
      position: absolute;
      inset: 0;
      background: repeating-linear-gradient(90deg, rgba(255,255,255,.07) 0 1px, transparent 1px 28px);
      pointer-events: none;
      opacity: .35;
    }

    .cta-inner {
      position: relative;
      display: grid;
      grid-template-columns: .95fr 1.05fr;
      gap: 24px;
      align-items: center;
    }

    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }

    .form-field {
      border-radius: 14px;
      border: 1px solid rgba(255,255,255,.18);
      background: rgba(255,255,255,.96);
      color: var(--text);
      padding: 13px 14px;
      min-height: 48px;
      transition: border-color .2s ease, box-shadow .2s ease;
    }

    .form-field:focus {
      border-color: var(--yellow);
      box-shadow: 0 0 0 4px rgba(250, 204, 21, .16);
    }

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

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

    details.faq-item {
      border: 1px solid var(--border-soft);
      border-radius: 16px;
      background: #fff;
      padding: 18px;
      box-shadow: 0 10px 22px rgba(249, 115, 22, .06);
      transition: border-color .2s ease, box-shadow .2s ease;
    }

    details.faq-item[open],
    details.faq-item:hover {
      border-color: var(--orange);
      box-shadow: var(--shadow);
    }

    .faq-item summary {
      list-style: none;
      cursor: pointer;
      display: flex;
      gap: 12px;
      align-items: center;
      font-size: 17px;
      font-weight: 900;
    }

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

    .faq-num {
      width: 32px;
      height: 32px;
      border-radius: 12px;
      display: grid;
      place-items: center;
      color: #fff;
      background: linear-gradient(135deg, var(--orange), var(--red));
      flex: 0 0 auto;
      font-size: 13px;
    }

    .faq-item p {
      margin: 14px 0 0 44px;
      color: var(--muted);
      font-size: 15px;
    }

    .site-footer {
      background: #0F0F12;
      color: #fff;
      border-top: 2px solid var(--orange);
      padding: 46px 0 24px;
    }

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

    .footer-links {
      display: grid;
      gap: 9px;
      color: rgba(255,255,255,.68);
      font-size: 14px;
    }

    .footer-links a {
      transition: color .2s ease, transform .2s ease;
    }

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

    .copyright {
      margin-top: 28px;
      padding-top: 18px;
      border-top: 1px solid rgba(255,255,255,.1);
      color: rgba(255,255,255,.55);
      font-size: 13px;
    }

    .focusable:focus-visible,
    a:focus-visible,
    button:focus-visible {
      outline: 3px solid rgba(250, 204, 21, .55);
      outline-offset: 3px;
    }

    @media (max-width: 1024px) {
      .nav-shell {
        grid-template-columns: auto 1fr auto;
      }

      .nav-side {
        display: none;
      }

      .brand-mark {
        justify-self: start;
      }

      .mobile-toggle {
        display: inline-flex;
        justify-self: end;
      }

      .creator-grid,
      .checklist-wrap,
      .proof-row,
      .news-grid,
      .cta-inner {
        grid-template-columns: 1fr;
      }

      .screen-card:nth-child(2),
      .screen-card:nth-child(3),
      .screen-card:nth-child(2):hover,
      .screen-card:nth-child(3):hover {
        transform: none;
      }

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

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

      .section {
        padding: 62px 0;
      }
    }

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

      .promo-strip {
        font-size: 13px;
      }

      .hero {
        padding: 34px 0 26px;
      }

      .creator-cover {
        padding: 20px;
        border-radius: 22px;
      }

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

      .avatar-badge {
        width: 60px;
        height: 60px;
        border-radius: 20px;
      }

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

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

      .section-head {
        display: block;
      }

      .deal-track {
        grid-auto-columns: 80vw;
      }

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

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

      .choice-item .arrow,
      .news-link .arrow {
        grid-column: 2;
      }

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

      .cta-panel {
        padding: 22px;
        border-radius: 22px;
      }
    }

    @media (max-width: 520px) {
      .brand-mark span {
        font-size: 15px;
      }

      .brand-icon {
        width: 30px;
        height: 30px;
      }

      .nav-shell {
        min-height: 68px;
        gap: 10px;
      }

      .hero h1 {
        font-size: 32px;
      }

      .section-title {
        font-size: 27px;
      }

      .btn-primary,
      .btn-secondary,
      .btn-light {
        width: 100%;
      }

      .hero-actions,
      .cta-actions {
        display: grid;
        width: 100%;
      }

      .review-card {
        width: 260px;
      }
    }

/* roulang page: category1 */
:root {
      --bg-dark: #0f0f12;
      --bg-dark-2: #17120f;
      --bg-warm: #fff7ed;
      --bg-soft: #fffbf5;
      --text-main: #171717;
      --text-muted: #6b7280;
      --text-light: #f9fafb;
      --orange: #f97316;
      --red: #ef4444;
      --yellow: #facc15;
      --cyan: #22d3ee;
      --border-warm: #fed7aa;
      --border-soft: #ffe4c7;
      --radius-lg: 20px;
      --radius-md: 16px;
      --radius-sm: 12px;
      --shadow-warm: 0 16px 36px rgba(249, 115, 22, .14);
      --shadow-strong: 0 18px 44px rgba(239, 68, 68, .24);
      --container: 1200px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      background: var(--bg-soft);
      color: var(--text-main);
      line-height: 1.75;
    }

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

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

    button {
      cursor: pointer;
    }

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

    :focus-visible {
      outline: 3px solid rgba(34, 211, 238, .8);
      outline-offset: 3px;
    }

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(15, 15, 18, .92);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(249, 115, 22, .34);
      box-shadow: 0 8px 30px rgba(0, 0, 0, .22);
    }

    .nav-shell {
      min-height: 78px;
      display: grid;
      grid-template-columns: 1fr auto 1fr;
      align-items: center;
      gap: 20px;
    }

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

    .nav-side.left {
      justify-content: flex-start;
    }

    .nav-side.right {
      justify-content: flex-end;
    }

    .brand-mark {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      color: #fff;
      font-weight: 900;
      font-size: 18px;
      white-space: nowrap;
    }

    .brand-icon {
      width: 34px;
      height: 34px;
      border-radius: 999px;
      background:
        radial-gradient(circle at 35% 30%, #fff7b1 0 15%, transparent 16%),
        conic-gradient(from 210deg, var(--red), var(--orange), var(--yellow), var(--red));
      box-shadow: 0 0 24px rgba(249, 115, 22, .58);
      position: relative;
    }

    .brand-icon::after {
      content: "";
      position: absolute;
      inset: 9px 11px;
      border-left: 6px solid transparent;
      border-right: 3px solid transparent;
      border-top: 14px solid #15120f;
      transform: skewX(-12deg);
    }

    .nav-link {
      display: inline-flex;
      align-items: center;
      min-height: 40px;
      padding: 0 14px;
      border-radius: 999px;
      color: rgba(255, 255, 255, .76);
      font-size: 14px;
      font-weight: 800;
      transition: transform .2s ease, background .2s ease, color .2s ease;
    }

    .nav-link:hover,
    .nav-link.active {
      color: #fff;
      background: linear-gradient(135deg, rgba(249, 115, 22, .95), rgba(239, 68, 68, .95));
      transform: translateY(-1px);
    }

    .nav-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 42px;
      padding: 0 18px;
      border-radius: 999px;
      color: #19110d;
      background: linear-gradient(135deg, #facc15, #f97316 58%, #ef4444);
      font-size: 14px;
      font-weight: 950;
      box-shadow: 0 12px 26px rgba(249, 115, 22, .28);
      transition: transform .2s ease, filter .2s ease, box-shadow .2s ease;
    }

    .nav-cta:hover {
      transform: translateY(-2px);
      filter: brightness(1.05);
      box-shadow: var(--shadow-strong);
    }

    .mobile-toggle {
      display: none;
      width: 44px;
      height: 44px;
      align-items: center;
      justify-content: center;
      border: 1px solid rgba(255, 255, 255, .16);
      border-radius: 12px;
      color: #fff;
      background: rgba(255, 255, 255, .07);
    }

    .mobile-panel {
      display: none;
      padding: 0 0 16px;
    }

    .section {
      padding: 76px 0;
    }

    .category-hero {
      position: relative;
      overflow: hidden;
      padding: 54px 0 42px;
      color: var(--text-light);
      background:
        linear-gradient(90deg, rgba(34, 211, 238, .08) 1px, transparent 1px),
        linear-gradient(0deg, rgba(34, 211, 238, .06) 1px, transparent 1px),
        radial-gradient(circle at 85% 20%, rgba(239, 68, 68, .26), transparent 32%),
        linear-gradient(135deg, #0f0f12, #17120f 62%, #24110d);
      background-size: 36px 36px, 36px 36px, auto, auto;
      border-bottom: 1px solid rgba(249, 115, 22, .24);
    }

    .category-hero::after {
      content: "";
      position: absolute;
      inset: auto -10% -1px -10%;
      height: 4px;
      background: linear-gradient(90deg, transparent, var(--orange), var(--red), var(--cyan), transparent);
      opacity: .88;
    }

    .hero-grid {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: minmax(0, 1.1fr) minmax(320px, .9fr);
      gap: 34px;
      align-items: center;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      border-radius: 999px;
      color: #fff;
      background: rgba(249, 115, 22, .16);
      border: 1px solid rgba(249, 115, 22, .34);
      font-size: 13px;
      font-weight: 900;
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 999px;
      background: var(--yellow);
      box-shadow: 0 0 18px rgba(250, 204, 21, .75);
    }

    h1 {
      margin: 18px 0 16px;
      font-size: clamp(30px, 4vw, 42px);
      line-height: 1.18;
      font-weight: 950;
      letter-spacing: 0;
    }

    .hero-summary {
      max-width: 720px;
      color: rgba(255, 255, 255, .76);
      font-size: 16px;
    }

    .sell-points {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 10px;
      margin-top: 22px;
      max-width: 720px;
    }

    .sell-points li {
      display: flex;
      align-items: center;
      gap: 9px;
      padding: 10px 12px;
      border-radius: 14px;
      background: rgba(255, 255, 255, .07);
      border: 1px solid rgba(255, 255, 255, .12);
      color: rgba(255, 255, 255, .9);
      font-size: 14px;
      font-weight: 800;
    }

    .dot-check {
      width: 18px;
      height: 18px;
      flex: 0 0 auto;
      border-radius: 999px;
      background: linear-gradient(135deg, var(--yellow), var(--orange));
      position: relative;
    }

    .dot-check::after {
      content: "";
      position: absolute;
      left: 6px;
      top: 4px;
      width: 5px;
      height: 8px;
      border-right: 2px solid #1b120d;
      border-bottom: 2px solid #1b120d;
      transform: rotate(42deg);
    }

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

    .btn-primary,
    .btn-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 48px;
      padding: 0 22px;
      border-radius: 999px;
      font-weight: 950;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
    }

    .btn-primary {
      color: #21110b;
      background: linear-gradient(135deg, #facc15, #f97316 55%, #ef4444);
      box-shadow: var(--shadow-strong);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 22px 54px rgba(239, 68, 68, .3);
    }

    .btn-secondary {
      color: #fff;
      background: rgba(255, 255, 255, .08);
      border: 1px solid rgba(255, 255, 255, .18);
    }

    .btn-secondary:hover {
      transform: translateY(-2px);
      background: rgba(249, 115, 22, .18);
      border-color: rgba(249, 115, 22, .5);
    }

    .summary-panel {
      border-radius: var(--radius-lg);
      padding: 18px;
      background: rgba(255, 255, 255, .08);
      border: 1px solid rgba(255, 255, 255, .14);
      box-shadow: 0 24px 60px rgba(0, 0, 0, .24);
    }

    .panel-top {
      display: flex;
      justify-content: space-between;
      gap: 14px;
      align-items: flex-start;
      padding-bottom: 14px;
      border-bottom: 1px solid rgba(255, 255, 255, .12);
    }

    .panel-number {
      color: var(--yellow);
      font-size: 34px;
      line-height: 1;
      font-weight: 950;
    }

    .status-pill {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      padding: 7px 10px;
      border-radius: 999px;
      color: #fff;
      background: rgba(34, 211, 238, .12);
      border: 1px solid rgba(34, 211, 238, .3);
      font-size: 12px;
      font-weight: 900;
    }

    .status-pill::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 999px;
      background: var(--cyan);
      box-shadow: 0 0 16px rgba(34, 211, 238, .8);
    }

    .meter-list {
      display: grid;
      gap: 13px;
      margin-top: 16px;
    }

    .meter-item {
      display: grid;
      gap: 7px;
    }

    .meter-head {
      display: flex;
      justify-content: space-between;
      gap: 10px;
      color: rgba(255, 255, 255, .78);
      font-size: 13px;
      font-weight: 800;
    }

    .meter {
      height: 8px;
      overflow: hidden;
      border-radius: 999px;
      background: rgba(255, 255, 255, .1);
    }

    .meter span {
      display: block;
      height: 100%;
      border-radius: inherit;
      background: linear-gradient(90deg, var(--orange), var(--red), var(--yellow));
    }

    .filter-band {
      padding: 22px 0;
      background: #fff;
      border-bottom: 1px solid var(--border-soft);
    }

    .filter-wrap {
      display: flex;
      gap: 10px;
      overflow-x: auto;
      padding-bottom: 2px;
      scrollbar-width: thin;
    }

    .filter-tag {
      flex: 0 0 auto;
      display: inline-flex;
      align-items: center;
      min-height: 40px;
      padding: 0 15px;
      border-radius: 999px;
      color: #7c2d12;
      background: #fff7ed;
      border: 1px solid var(--border-warm);
      font-size: 14px;
      font-weight: 900;
      transition: transform .2s ease, background .2s ease, color .2s ease;
    }

    .filter-tag:hover,
    .filter-tag.active {
      color: #fff;
      background: linear-gradient(135deg, var(--orange), var(--red));
      transform: translateY(-1px);
    }

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

    .section-head {
      display: grid;
      gap: 8px;
      margin-bottom: 22px;
    }

    .section-head h2 {
      margin: 0;
      font-size: clamp(26px, 3vw, 34px);
      line-height: 1.25;
      font-weight: 950;
      letter-spacing: 0;
    }

    .section-head p {
      margin: 0;
      max-width: 760px;
      color: var(--text-muted);
      font-size: 15px;
    }

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

    .guide-card {
      display: grid;
      grid-template-columns: 58px minmax(0, 1fr) auto;
      gap: 16px;
      align-items: center;
      padding: 18px;
      border-radius: var(--radius-md);
      background: #fff;
      border: 1px solid var(--border-soft);
      box-shadow: 0 8px 22px rgba(17, 24, 39, .05);
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }

    .guide-card:hover {
      transform: translateY(-3px);
      border-color: rgba(249, 115, 22, .72);
      box-shadow: var(--shadow-warm);
    }

    .guide-icon {
      width: 58px;
      height: 58px;
      display: grid;
      place-items: center;
      border-radius: 18px;
      color: #7c2d12;
      background: linear-gradient(135deg, #fff7ed, #fed7aa);
      border: 1px solid #fdba74;
      font-size: 24px;
      font-weight: 950;
    }

    .guide-title-row {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px;
      margin-bottom: 4px;
    }

    .guide-title-row h3 {
      margin: 0;
      font-size: 18px;
      line-height: 1.35;
      font-weight: 950;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      min-height: 24px;
      padding: 0 9px;
      border-radius: 999px;
      color: #991b1b;
      background: #fee2e2;
      font-size: 12px;
      font-weight: 950;
      white-space: nowrap;
    }

    .badge.orange {
      color: #9a3412;
      background: #ffedd5;
    }

    .guide-card p {
      margin: 0;
      color: var(--text-muted);
      font-size: 14px;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .guide-action {
      display: grid;
      justify-items: end;
      gap: 8px;
      min-width: 150px;
    }

    .price-note {
      display: inline-flex;
      align-items: center;
      padding: 6px 10px;
      border-radius: 12px;
      color: #dc2626;
      background: #fff1f2;
      border: 1px solid #fecdd3;
      font-size: 13px;
      font-weight: 950;
    }

    .small-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 36px;
      padding: 0 13px;
      border-radius: 999px;
      color: #fff;
      background: linear-gradient(135deg, var(--orange), var(--red));
      font-size: 13px;
      font-weight: 950;
      box-shadow: 0 10px 20px rgba(239, 68, 68, .18);
      transition: transform .2s ease, filter .2s ease;
    }

    .guide-card:hover .small-cta {
      transform: translateX(2px);
      filter: brightness(1.04);
    }

    .promo-card {
      position: relative;
      overflow: hidden;
      padding: 22px;
      border-radius: var(--radius-lg);
      color: #fff;
      background:
        linear-gradient(135deg, rgba(34, 211, 238, .1), transparent 38%),
        linear-gradient(135deg, #19110d, #2a120c 60%, #44110f);
      border: 1px solid rgba(249, 115, 22, .42);
      box-shadow: var(--shadow-strong);
    }

    .promo-card h3 {
      margin: 0 0 8px;
      font-size: 22px;
      font-weight: 950;
    }

    .promo-card p {
      margin: 0;
      color: rgba(255, 255, 255, .76);
      font-size: 14px;
    }

    .sidebar {
      position: sticky;
      top: 100px;
      display: grid;
      gap: 14px;
    }

    .side-card {
      padding: 18px;
      border-radius: var(--radius-md);
      background: #fff;
      border: 1px solid var(--border-soft);
      box-shadow: 0 8px 22px rgba(17, 24, 39, .05);
    }

    .side-card.dark {
      color: #fff;
      background: linear-gradient(145deg, #121215, #21110c);
      border-color: rgba(249, 115, 22, .28);
    }

    .side-card h3 {
      margin: 0 0 12px;
      font-size: 18px;
      font-weight: 950;
    }

    .hot-item {
      display: grid;
      gap: 7px;
      padding: 12px 0;
      border-top: 1px solid rgba(249, 115, 22, .18);
    }

    .hot-item:first-of-type {
      border-top: 0;
      padding-top: 0;
    }

    .hot-line {
      display: flex;
      justify-content: space-between;
      gap: 10px;
      font-size: 14px;
      font-weight: 900;
    }

    .hot-line span:last-child {
      color: var(--orange);
    }

    .side-meter {
      height: 7px;
      overflow: hidden;
      border-radius: 999px;
      background: #ffedd5;
    }

    .side-meter span {
      display: block;
      height: 100%;
      border-radius: inherit;
      background: linear-gradient(90deg, var(--orange), var(--red));
    }

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

    .guard-list li {
      display: flex;
      align-items: flex-start;
      gap: 9px;
      color: var(--text-muted);
      font-size: 14px;
    }

    .guard-list li::before {
      content: "◆";
      color: var(--orange);
      line-height: 1.7;
      font-size: 11px;
    }

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

    .faq-item {
      padding: 18px;
      border-radius: var(--radius-md);
      background: #fff;
      border: 1px solid var(--border-soft);
      transition: border-color .2s ease, box-shadow .2s ease;
    }

    .faq-item:hover {
      border-color: rgba(249, 115, 22, .7);
      box-shadow: var(--shadow-warm);
    }

    .faq-item summary {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      list-style: none;
      cursor: pointer;
      color: #1f1f23;
      font-size: 16px;
      font-weight: 950;
    }

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

    .faq-item summary::after {
      content: "+";
      width: 28px;
      height: 28px;
      flex: 0 0 auto;
      display: grid;
      place-items: center;
      border-radius: 999px;
      color: #fff;
      background: linear-gradient(135deg, var(--orange), var(--red));
      font-weight: 950;
    }

    .faq-item[open] summary::after {
      content: "−";
    }

    .faq-item p {
      margin: 12px 0 0;
      color: var(--text-muted);
      font-size: 15px;
    }

    .bottom-cta {
      overflow: hidden;
      border-radius: 26px;
      padding: 30px;
      color: #fff;
      background:
        linear-gradient(90deg, rgba(250, 204, 21, .18), transparent 36%),
        linear-gradient(135deg, #17120f, #2a130c 58%, #dc2626);
      border: 1px solid rgba(249, 115, 22, .42);
      box-shadow: var(--shadow-strong);
    }

    .cta-grid {
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 20px;
      align-items: center;
    }

    .bottom-cta h2 {
      margin: 0 0 8px;
      font-size: clamp(24px, 3vw, 34px);
      line-height: 1.28;
      font-weight: 950;
    }

    .bottom-cta p {
      margin: 0;
      color: rgba(255, 255, 255, .76);
      font-size: 15px;
    }

    .trust-row {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 16px;
    }

    .trust-item {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      min-height: 34px;
      padding: 0 11px;
      border-radius: 999px;
      color: rgba(255, 255, 255, .88);
      background: rgba(255, 255, 255, .08);
      border: 1px solid rgba(255, 255, 255, .13);
      font-size: 13px;
      font-weight: 900;
    }

    .trust-item::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 999px;
      background: var(--yellow);
    }

    .site-footer {
      padding: 52px 0 26px;
      color: #fff;
      background: #0f0f12;
      border-top: 3px solid var(--orange);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.3fr) .6fr .8fr;
      gap: 30px;
    }

    .footer-links {
      display: grid;
      gap: 9px;
      color: rgba(255, 255, 255, .66);
      font-size: 14px;
    }

    .footer-links a,
    .footer-links span {
      transition: color .2s ease, transform .2s ease;
    }

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

    .copyright {
      margin-top: 34px;
      padding-top: 20px;
      border-top: 1px solid rgba(255, 255, 255, .1);
      color: rgba(255, 255, 255, .52);
      font-size: 13px;
    }

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

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

      .summary-panel {
        max-width: 680px;
      }
    }

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

      .nav-shell {
        min-height: 68px;
        grid-template-columns: 1fr auto;
      }

      .nav-side {
        display: none;
      }

      .brand-mark {
        justify-content: flex-start;
        font-size: 16px;
      }

      .mobile-toggle {
        display: inline-flex;
      }

      .mobile-panel.open {
        display: block;
      }

      .mobile-panel .nav-link,
      .mobile-panel .nav-cta {
        width: 100%;
        justify-content: center;
      }

      .category-hero {
        padding: 36px 0 34px;
      }

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

      .guide-card {
        grid-template-columns: 48px minmax(0, 1fr);
      }

      .guide-icon {
        width: 48px;
        height: 48px;
        border-radius: 15px;
        font-size: 20px;
      }

      .guide-action {
        grid-column: 1 / -1;
        justify-items: start;
        min-width: 0;
        display: flex;
        flex-wrap: wrap;
        align-items: center;
      }

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

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

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

    @media (max-width: 520px) {
      .section {
        padding: 54px 0;
      }

      .hero-actions,
      .bottom-cta .hero-actions {
        display: grid;
      }

      .btn-primary,
      .btn-secondary {
        width: 100%;
      }

      .bottom-cta {
        padding: 22px;
        border-radius: 20px;
      }

      .panel-top {
        display: grid;
      }
    }