/* roulang page: index */
:root {
      --bg: #fbfaf6;
      --surface: #ffffff;
      --surface-soft: #f4f1ea;
      --ink: #181817;
      --muted: #66645f;
      --faint: #8b877e;
      --line: #e7e1d7;
      --brand: #1d6bff;
      --brand-2: #00b9c7;
      --accent: #f45b69;
      --violet: #8d4df3;
      --ok: #16a36a;
      --warn: #d88a00;
      --hot: #ef3f5a;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 22px;
      --shadow-sm: 0 8px 24px rgba(24, 24, 23, .06);
      --shadow-md: 0 18px 48px rgba(24, 24, 23, .10);
      --container: 1160px;
      --nav-h: 72px;
      --grad: linear-gradient(135deg, #1d6bff 0%, #00b9c7 52%, #f45b69 100%);
    }

    * {
      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", Arial, sans-serif;
      color: var(--ink);
      background:
        radial-gradient(circle at top left, rgba(29, 107, 255, .08), transparent 34rem),
        linear-gradient(180deg, #fffdf8 0%, var(--bg) 48%, #f6f4ee 100%);
      line-height: 1.65;
      letter-spacing: 0;
    }

    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(29, 107, 255, .26);
      outline-offset: 3px;
    }

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(251, 250, 246, .88);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(231, 225, 215, .92);
    }

    .nav {
      height: var(--nav-h);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 26px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-weight: 800;
      color: var(--ink);
      white-space: nowrap;
    }

    .brand-mark {
      width: 30px;
      height: 30px;
      border-radius: 9px;
      background: var(--grad);
      box-shadow: 0 10px 26px rgba(29, 107, 255, .18);
      position: relative;
    }

    .brand-mark::after {
      content: "";
      position: absolute;
      inset: 8px 6px;
      border-top: 2px solid #fff;
      border-bottom: 2px solid rgba(255, 255, 255, .86);
    }

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

    .nav-links {
      display: flex;
      align-items: center;
      gap: 8px;
      margin-left: auto;
    }

    .nav-links a {
      position: relative;
      display: inline-flex;
      align-items: center;
      min-height: 38px;
      padding: 0 12px;
      border-radius: 999px;
      color: var(--muted);
      font-size: 14px;
      transition: color .2s ease, background .2s ease;
    }

    .nav-links a:hover {
      color: var(--ink);
      background: rgba(255, 255, 255, .72);
    }

    .nav-links a.active {
      color: var(--ink);
      background: #fff;
      box-shadow: inset 0 0 0 1px var(--line);
    }

    .nav-links a.active::after {
      content: "";
      position: absolute;
      left: 50%;
      bottom: 4px;
      width: 18px;
      height: 2px;
      transform: translateX(-50%);
      border-radius: 2px;
      background: var(--grad);
    }

    .nav-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 38px;
      padding: 0 16px;
      border: 1px solid rgba(24, 24, 23, .12);
      border-radius: 999px;
      background: #fff;
      font-size: 14px;
      font-weight: 700;
      color: var(--ink);
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }

    .nav-cta:hover {
      transform: translateY(-1px);
      border-color: rgba(29, 107, 255, .26);
      box-shadow: var(--shadow-sm);
    }

    .mobile-toggle {
      display: none;
      width: 42px;
      height: 42px;
      border: 1px solid var(--line);
      border-radius: 999px;
      background: #fff;
      color: var(--ink);
    }

    .mobile-toggle span {
      display: block;
      width: 16px;
      height: 2px;
      margin: 4px auto;
      background: currentColor;
      border-radius: 2px;
    }

    main {
      overflow: hidden;
    }

    section {
      padding: 82px 0;
    }

    .section-head {
      display: grid;
      grid-template-columns: minmax(0, 1fr) minmax(260px, 430px);
      gap: 36px;
      align-items: end;
      margin-bottom: 30px;
    }

    .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      width: fit-content;
      margin-bottom: 12px;
      padding: 5px 10px;
      border-radius: 999px;
      background: rgba(29, 107, 255, .08);
      color: #164db1;
      font-size: 13px;
      font-weight: 800;
    }

    .section-kicker::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--brand-2);
    }

    h1,
    h2,
    h3 {
      margin: 0;
      line-height: 1.16;
      letter-spacing: 0;
    }

    h1 {
      font-size: clamp(34px, 5vw, 64px);
      max-width: 920px;
    }

    h2 {
      font-size: clamp(26px, 3vw, 42px);
    }

    h3 {
      font-size: 19px;
    }

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

    .lead {
      font-size: 17px;
      color: #4d4b47;
    }

    .btn-row {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      align-items: center;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 46px;
      padding: 0 18px;
      border-radius: 999px;
      border: 1px solid transparent;
      font-weight: 800;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
    }

    .btn-primary {
      color: #fff;
      background: var(--grad);
      box-shadow: 0 14px 30px rgba(29, 107, 255, .22);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 18px 38px rgba(29, 107, 255, .28);
    }

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

    .btn-secondary:hover {
      transform: translateY(-2px);
      border-color: rgba(29, 107, 255, .32);
      box-shadow: var(--shadow-sm);
    }

    .btn-light {
      min-height: 38px;
      padding: 0 13px;
      color: var(--muted);
      background: rgba(255, 255, 255, .76);
      border-color: var(--line);
      font-size: 14px;
    }

    .btn-light:hover {
      color: var(--ink);
      background: #fff;
    }

    .hero {
      padding: 34px 0 70px;
    }

    .hero-band {
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      background:
        linear-gradient(90deg, rgba(255,255,255,.92), rgba(255,255,255,.72)),
        linear-gradient(135deg, rgba(29,107,255,.13), rgba(0,185,199,.12) 55%, rgba(244,91,105,.12));
      box-shadow: var(--shadow-sm);
      overflow: hidden;
    }

    .hero-topline {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 14px 18px;
      border-bottom: 1px solid rgba(231, 225, 215, .86);
      color: var(--faint);
      font-size: 13px;
      background: rgba(255, 255, 255, .45);
    }

    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.25fr) minmax(320px, .75fr);
      gap: 34px;
      padding: 46px;
      align-items: center;
    }

    .hero-copy {
      display: grid;
      gap: 24px;
    }

    .hero-copy .lead {
      max-width: 720px;
    }

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

    .point {
      min-height: 88px;
      padding: 15px;
      border: 1px solid rgba(231, 225, 215, .9);
      border-radius: var(--radius-md);
      background: rgba(255, 255, 255, .74);
    }

    .point strong {
      display: block;
      font-size: 24px;
      line-height: 1;
      margin-bottom: 8px;
    }

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

    .hero-panel {
      border: 1px solid rgba(231, 225, 215, .9);
      border-radius: var(--radius-lg);
      background: #fff;
      box-shadow: var(--shadow-md);
      overflow: hidden;
    }

    .panel-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding: 16px 18px;
      border-bottom: 1px solid var(--line);
    }

    .status-dot {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      color: var(--muted);
      font-size: 13px;
    }

    .status-dot::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--ok);
      box-shadow: 0 0 0 4px rgba(22, 163, 106, .12);
    }

    .check-list {
      display: grid;
      gap: 10px;
      padding: 18px;
    }

    .check-item {
      display: grid;
      grid-template-columns: 44px 1fr auto;
      gap: 12px;
      align-items: center;
      padding: 13px;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      background: #fffdfa;
    }

    .code {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 44px;
      height: 34px;
      border-radius: 9px;
      background: #f0f6ff;
      color: #164db1;
      font-weight: 900;
      font-size: 13px;
    }

    .check-item b {
      display: block;
      line-height: 1.25;
    }

    .check-item small {
      color: var(--faint);
    }

    .badge {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 26px;
      padding: 0 9px;
      border-radius: 999px;
      font-size: 12px;
      font-weight: 800;
      white-space: nowrap;
    }

    .badge-update {
      color: #0a7b84;
      background: rgba(0, 185, 199, .13);
    }

    .badge-verified {
      color: #107145;
      background: rgba(22, 163, 106, .13);
    }

    .badge-hot {
      color: #bc1f39;
      background: rgba(239, 63, 90, .13);
    }

    .badge-note {
      color: #7440c7;
      background: rgba(141, 77, 243, .12);
    }

    .anchor-strip {
      position: sticky;
      top: var(--nav-h);
      z-index: 45;
      border-top: 1px solid rgba(231, 225, 215, .7);
      border-bottom: 1px solid rgba(231, 225, 215, .9);
      background: rgba(251, 250, 246, .9);
      backdrop-filter: blur(14px);
    }

    .anchor-strip .container {
      display: flex;
      gap: 10px;
      padding: 10px 0;
      overflow-x: auto;
      scrollbar-width: none;
    }

    .anchor-strip .container::-webkit-scrollbar {
      display: none;
    }

    .anchor-strip a {
      flex: 0 0 auto;
      padding: 7px 12px;
      border: 1px solid transparent;
      border-radius: 999px;
      color: var(--muted);
      font-size: 13px;
      font-weight: 700;
      transition: background .2s ease, color .2s ease, border-color .2s ease;
    }

    .anchor-strip a:hover {
      color: var(--ink);
      background: #fff;
      border-color: var(--line);
    }

    .coupon-section {
      padding-top: 64px;
    }

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

    .ticket {
      position: relative;
      min-height: 210px;
      padding: 22px;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      background: var(--surface);
      box-shadow: var(--shadow-sm);
      overflow: hidden;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }

    .ticket:hover {
      transform: translateY(-4px);
      border-color: rgba(29, 107, 255, .28);
      box-shadow: var(--shadow-md);
    }

    .ticket::before,
    .ticket::after {
      content: "";
      position: absolute;
      top: 86px;
      width: 18px;
      height: 18px;
      border-radius: 50%;
      background: var(--bg);
      border: 1px solid var(--line);
    }

    .ticket::before {
      left: -10px;
    }

    .ticket::after {
      right: -10px;
    }

    .ticket .badge {
      margin-bottom: 22px;
    }

    .ticket h3 {
      margin-bottom: 10px;
    }

    .ticket p {
      font-size: 14px;
    }

    .rule-wrap {
      display: grid;
      grid-template-columns: .86fr 1.14fr;
      gap: 18px;
      align-items: stretch;
    }

    .note-card,
    .large-card {
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      background: #fff;
      box-shadow: var(--shadow-sm);
    }

    .note-card {
      padding: 26px;
      background:
        linear-gradient(180deg, rgba(255, 255, 255, .96), rgba(244, 241, 234, .72)),
        var(--surface);
    }

    .note-card h3 {
      margin-bottom: 12px;
    }

    .rule-list {
      display: grid;
      gap: 12px;
      padding: 26px;
    }

    .rule-item {
      display: grid;
      grid-template-columns: 34px 1fr;
      gap: 14px;
      padding: 15px;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      background: #fffdfa;
    }

    .step-no {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 34px;
      height: 34px;
      border-radius: 10px;
      color: #fff;
      background: var(--grad);
      font-weight: 900;
      font-size: 13px;
    }

    .rule-item b {
      display: block;
      margin-bottom: 4px;
    }

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

    .stage {
      background: #171716;
      color: #fff;
    }

    .stage p,
    .stage .lead {
      color: rgba(255, 255, 255, .72);
    }

    .stage .section-kicker {
      background: rgba(255, 255, 255, .08);
      color: #fff;
    }

    .screen-frame {
      display: grid;
      grid-template-columns: .86fr 1.14fr;
      gap: 18px;
      align-items: stretch;
    }

    .screen-menu,
    .screen-main {
      border: 1px solid rgba(255, 255, 255, .12);
      border-radius: var(--radius-lg);
      background: rgba(255, 255, 255, .06);
      box-shadow: 0 18px 50px rgba(0, 0, 0, .2);
    }

    .screen-menu {
      padding: 20px;
    }

    .filter-pill {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding: 12px 0;
      border-bottom: 1px solid rgba(255, 255, 255, .1);
      color: rgba(255, 255, 255, .82);
      font-size: 14px;
    }

    .filter-pill:last-child {
      border-bottom: 0;
    }

    .screen-main {
      padding: 18px;
    }

    .result-row {
      display: grid;
      grid-template-columns: auto 1fr auto;
      gap: 13px;
      align-items: center;
      padding: 14px;
      border-radius: var(--radius-md);
      background: rgba(255, 255, 255, .08);
      border: 1px solid rgba(255, 255, 255, .1);
      margin-bottom: 10px;
    }

    .result-row:last-child {
      margin-bottom: 0;
    }

    .result-row strong {
      display: block;
      color: #fff;
    }

    .result-row small {
      color: rgba(255, 255, 255, .62);
    }

    .evidence-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 14px;
      margin-bottom: 18px;
    }

    .metric {
      padding: 22px;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      background: #fff;
      box-shadow: var(--shadow-sm);
    }

    .metric strong {
      display: block;
      margin-bottom: 8px;
      font-size: 30px;
      line-height: 1;
    }

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

    .proof-row {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 14px;
    }

    .proof {
      padding: 22px;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      background: linear-gradient(180deg, #fff, #fffaf2);
    }

    .proof h3 {
      margin: 10px 0 8px;
    }

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

    .focus-card {
      min-height: 190px;
      padding: 22px;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      background: #fff;
      box-shadow: var(--shadow-sm);
    }

    .focus-card h3 {
      margin: 16px 0 10px;
    }

    .mini-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 18px;
    }

    .mini-tags span {
      padding: 5px 9px;
      border-radius: 999px;
      background: var(--surface-soft);
      color: var(--muted);
      font-size: 12px;
      font-weight: 700;
    }

    .news-wrap {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 340px;
      gap: 18px;
      align-items: start;
    }

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

    .news-link {
      display: grid;
      grid-template-columns: 92px 1fr auto;
      gap: 16px;
      align-items: center;
      padding: 18px 20px;
      border-bottom: 1px solid var(--line);
      transition: background .2s ease;
    }

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

    .news-link:hover {
      background: #fffaf2;
    }

    .news-link time {
      color: var(--faint);
      font-size: 13px;
      font-weight: 800;
    }

    .news-link b {
      display: block;
      margin-bottom: 4px;
    }

    .news-link span {
      display: block;
      color: var(--muted);
      font-size: 14px;
    }

    .arrow {
      color: var(--brand);
      font-weight: 900;
    }

    .recommend-panel {
      padding: 22px;
      position: sticky;
      top: calc(var(--nav-h) + 64px);
    }

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

    .recommend-panel p {
      margin-bottom: 18px;
      font-size: 14px;
    }

    .mini-list {
      display: grid;
      gap: 10px;
      margin-bottom: 18px;
    }

    .mini-list div {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      padding: 10px 0;
      border-bottom: 1px solid var(--line);
      color: var(--muted);
      font-size: 14px;
    }

    .mini-list div:last-child {
      border-bottom: 0;
    }

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

    .plan {
      position: relative;
      display: flex;
      flex-direction: column;
      padding: 24px;
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      background: #fff;
      box-shadow: var(--shadow-sm);
    }

    .plan.recommended {
      border-color: rgba(29, 107, 255, .38);
      box-shadow: 0 18px 46px rgba(29, 107, 255, .12);
    }

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

    .price {
      margin: 18px 0 16px;
      font-size: 34px;
      font-weight: 900;
      line-height: 1;
    }

    .price small {
      font-size: 13px;
      color: var(--faint);
      font-weight: 700;
    }

    .plan ul {
      display: grid;
      gap: 10px;
      margin: 0 0 22px;
      padding: 0;
      list-style: none;
      color: var(--muted);
      font-size: 14px;
    }

    .plan li {
      padding-left: 18px;
      position: relative;
    }

    .plan li::before {
      content: "";
      position: absolute;
      left: 0;
      top: 10px;
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--brand-2);
    }

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

    .reviews {
      display: grid;
      grid-template-columns: 320px minmax(0, 1fr);
      gap: 18px;
    }

    .score-card,
    .review-card {
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      background: #fff;
      box-shadow: var(--shadow-sm);
    }

    .score-card {
      padding: 26px;
    }

    .score {
      display: flex;
      align-items: baseline;
      gap: 8px;
      margin: 16px 0 8px;
    }

    .score strong {
      font-size: 54px;
      line-height: 1;
    }

    .score span {
      color: var(--faint);
      font-weight: 800;
    }

    .bar {
      height: 8px;
      border-radius: 999px;
      background: var(--surface-soft);
      overflow: hidden;
      margin: 16px 0;
    }

    .bar i {
      display: block;
      width: 92%;
      height: 100%;
      background: var(--grad);
      border-radius: inherit;
    }

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

    .review-card {
      padding: 22px;
    }

    .review-card p {
      margin: 12px 0 14px;
    }

    .review-card strong {
      display: block;
    }

    .review-card small {
      color: var(--faint);
    }

    .faq-wrap {
      display: grid;
      gap: 12px;
      max-width: 920px;
      margin: 0 auto;
    }

    details {
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      background: #fff;
      box-shadow: var(--shadow-sm);
      overflow: hidden;
    }

    summary {
      list-style: none;
      padding: 18px 20px;
      font-weight: 900;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      gap: 18px;
    }

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

    summary::after {
      content: "+";
      color: var(--brand);
      font-size: 20px;
      line-height: 1;
    }

    details[open] summary {
      background: #fffaf2;
      border-bottom: 1px solid var(--line);
    }

    details[open] summary::after {
      content: "-";
    }

    details p {
      padding: 18px 20px 20px;
    }

    .cta-section {
      padding: 58px 0 88px;
    }

    .cta-box {
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 26px;
      align-items: center;
      padding: 30px;
      border-radius: var(--radius-lg);
      background:
        linear-gradient(135deg, rgba(29, 107, 255, .94), rgba(0, 185, 199, .9) 58%, rgba(244, 91, 105, .88));
      color: #fff;
      box-shadow: 0 24px 60px rgba(29, 107, 255, .24);
    }

    .cta-box p {
      color: rgba(255, 255, 255, .82);
      margin-top: 10px;
    }

    .cta-box .btn-secondary {
      border-color: rgba(255, 255, 255, .4);
      background: #fff;
    }

    .floating-cta {
      position: fixed;
      right: 20px;
      bottom: 20px;
      z-index: 60;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      min-height: 50px;
      padding: 0 18px;
      border-radius: 999px;
      color: #fff;
      background: var(--grad);
      box-shadow: 0 16px 42px rgba(29, 107, 255, .28);
      font-weight: 900;
      transition: transform .2s ease, box-shadow .2s ease;
    }

    .floating-cta:hover {
      transform: translateY(-2px);
      box-shadow: 0 20px 52px rgba(29, 107, 255, .34);
    }

    .site-footer {
      border-top: 1px solid var(--line);
      background: #fffdfa;
      padding: 38px 0 28px;
    }

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

    .footer-brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-weight: 900;
      margin-bottom: 12px;
    }

    .footer-brand .brand-mark {
      width: 26px;
      height: 26px;
      border-radius: 8px;
    }

    .footer-links {
      display: flex;
      flex-wrap: wrap;
      gap: 10px 18px;
      justify-content: flex-end;
    }

    .footer-links a {
      color: var(--muted);
      font-size: 14px;
      transition: color .2s ease;
    }

    .footer-links a:hover {
      color: var(--ink);
    }

    .copyright {
      margin-top: 24px;
      padding-top: 20px;
      border-top: 1px solid var(--line);
      color: var(--faint);
      font-size: 13px;
    }

    @media (max-width: 1024px) {
      .hero-grid,
      .rule-wrap,
      .screen-frame,
      .news-wrap,
      .reviews {
        grid-template-columns: 1fr;
      }

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

      .focus-grid,
      .plans,
      .proof-row {
        grid-template-columns: 1fr;
      }

      .recommend-panel {
        position: static;
      }

      .section-head {
        grid-template-columns: 1fr;
        gap: 14px;
      }
    }

    @media (max-width: 768px) {
      :root {
        --nav-h: 64px;
      }

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

      .nav {
        height: auto;
        min-height: var(--nav-h);
        flex-wrap: wrap;
        gap: 10px;
        padding: 10px 0;
      }

      .mobile-toggle {
        display: inline-block;
        margin-left: auto;
      }

      .nav-links {
        order: 5;
        width: 100%;
        display: none;
        padding: 8px 0 4px;
        border-top: 1px solid var(--line);
        overflow-x: auto;
      }

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

      .nav-cta {
        display: none;
      }

      section {
        padding: 58px 0;
      }

      .hero {
        padding-top: 22px;
      }

      .hero-grid {
        padding: 28px;
      }

      .hero-points,
      .review-list,
      .plans {
        grid-template-columns: 1fr;
      }

      .news-link {
        grid-template-columns: 1fr;
        gap: 6px;
      }

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

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

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

    @media (max-width: 520px) {
      h1 {
        font-size: 32px;
      }

      .hero-grid,
      .note-card,
      .rule-list,
      .screen-menu,
      .screen-main,
      .cta-box {
        padding: 20px;
      }

      .ticket-grid,
      .evidence-grid {
        grid-template-columns: 1fr;
      }

      .check-item,
      .result-row {
        grid-template-columns: 1fr;
      }

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

      .site-footer {
        padding-bottom: 84px;
      }
    }

/* roulang page: category1 */
:root {
      --bg: #fbfaf6;
      --bg-soft: #f2f5f1;
      --surface: #ffffff;
      --surface-strong: #111317;
      --text: #17191d;
      --muted: #666d78;
      --muted-2: #8b929e;
      --line: #e4e7e1;
      --line-strong: #ced5cc;
      --brand: #2457ff;
      --brand-2: #00b9c8;
      --accent: #ff5d5d;
      --violet: #9a4dff;
      --ok: #19a76f;
      --warn: #f29b18;
      --hot: #e83d61;
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --shadow-sm: 0 10px 26px rgba(17, 19, 23, .06);
      --shadow-md: 0 18px 50px rgba(17, 19, 23, .10);
      --container: 1180px;
      --header-h: 72px;
      --gradient: linear-gradient(135deg, #2457ff 0%, #00b9c8 52%, #ff5d5d 100%);
    }

    * {
      box-sizing: border-box;
    }

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

    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at top left, rgba(36, 87, 255, .08), transparent 34rem),
        linear-gradient(180deg, #fbfaf6 0%, #f6f7f2 45%, #fbfaf6 100%);
      line-height: 1.65;
      letter-spacing: 0;
    }

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

    button,
    input,
    select {
      font: inherit;
    }

    button {
      cursor: pointer;
    }

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

    :focus-visible {
      outline: 3px solid rgba(36, 87, 255, .28);
      outline-offset: 3px;
    }

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(251, 250, 246, .9);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(228, 231, 225, .9);
    }

    .nav-shell {
      min-height: var(--header-h);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 26px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-weight: 850;
      color: var(--text);
      white-space: nowrap;
      letter-spacing: 0;
    }

    .brand-mark {
      width: 18px;
      height: 18px;
      display: inline-block;
      border-radius: 6px;
      background: var(--gradient);
      box-shadow: 0 7px 18px rgba(36, 87, 255, .28);
      position: relative;
    }

    .brand-mark::after {
      content: "";
      position: absolute;
      inset: 4px;
      border: 1px solid rgba(255, 255, 255, .78);
      border-radius: 4px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      justify-content: flex-end;
      gap: 4px;
      flex: 1;
    }

    .nav-links a {
      position: relative;
      padding: 9px 12px;
      color: #333942;
      font-size: 14px;
      border-radius: 999px;
      transition: color .2s ease, background .2s ease, transform .2s ease;
      white-space: nowrap;
    }

    .nav-links a:hover {
      color: var(--brand);
      background: rgba(36, 87, 255, .06);
      transform: translateY(-1px);
    }

    .nav-links a.active {
      color: var(--text);
      background: #fff;
      box-shadow: inset 0 0 0 1px var(--line);
    }

    .nav-links a.active::after {
      content: "";
      position: absolute;
      left: 14px;
      right: 14px;
      bottom: 5px;
      height: 2px;
      border-radius: 999px;
      background: var(--gradient);
    }

    .nav-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 38px;
      padding: 0 15px;
      border: 1px solid var(--text);
      border-radius: 999px;
      font-size: 14px;
      font-weight: 750;
      background: var(--text);
      color: #fff;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
      white-space: nowrap;
    }

    .nav-cta:hover {
      transform: translateY(-1px);
      box-shadow: var(--shadow-sm);
      background: #262a31;
    }

    .mobile-toggle {
      display: none;
      width: 42px;
      height: 42px;
      border: 1px solid var(--line);
      border-radius: 50%;
      background: var(--surface);
      color: var(--text);
    }

    .mobile-toggle span {
      width: 18px;
      height: 2px;
      display: block;
      margin: 4px auto;
      background: currentColor;
      border-radius: 999px;
    }

    main {
      overflow: hidden;
    }

    .section {
      padding: 84px 0;
      position: relative;
    }

    .section.compact {
      padding: 64px 0;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 16px;
      color: #2e4246;
      font-size: 13px;
      font-weight: 800;
      letter-spacing: 0;
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--brand-2);
      box-shadow: 0 0 0 6px rgba(0, 185, 200, .12);
    }

    .hero {
      padding: 58px 0 44px;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.08fr) minmax(360px, .92fr);
      gap: 34px;
      align-items: stretch;
    }

    .hero-copy {
      padding: 36px 0 20px;
    }

    h1 {
      margin: 0 0 18px;
      max-width: 760px;
      font-size: clamp(34px, 5vw, 66px);
      line-height: 1.06;
      letter-spacing: 0;
      color: var(--text);
    }

    .hero-lead {
      max-width: 720px;
      margin: 0 0 26px;
      color: #3f4650;
      font-size: 18px;
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 46px;
      padding: 0 18px;
      border-radius: 999px;
      border: 1px solid transparent;
      font-weight: 780;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease, color .2s ease;
      white-space: nowrap;
    }

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

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

    .btn-primary {
      color: #fff;
      background: var(--text);
      box-shadow: 0 14px 28px rgba(17, 19, 23, .15);
    }

    .btn-primary:hover {
      background: #292d34;
      box-shadow: 0 18px 34px rgba(17, 19, 23, .20);
    }

    .btn-secondary {
      color: var(--text);
      background: #fff;
      border-color: var(--line-strong);
    }

    .btn-secondary:hover {
      border-color: var(--brand);
      color: var(--brand);
      box-shadow: var(--shadow-sm);
    }

    .btn-light {
      min-height: 38px;
      padding: 0 13px;
      background: rgba(36, 87, 255, .07);
      color: var(--brand);
      border-color: rgba(36, 87, 255, .14);
      font-size: 14px;
    }

    .btn-light:hover {
      background: rgba(36, 87, 255, .11);
    }

    .hero-panel {
      background: rgba(255, 255, 255, .9);
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-md);
      padding: 22px;
      position: relative;
    }

    .hero-panel::before {
      content: "";
      position: absolute;
      inset: 0 0 auto;
      height: 5px;
      border-radius: var(--radius-lg) var(--radius-lg) 0 0;
      background: var(--gradient);
    }

    .question-card {
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      padding: 18px;
      background: #fbfcfb;
      margin-bottom: 16px;
    }

    .question-card strong {
      display: block;
      font-size: 18px;
      line-height: 1.35;
      margin-bottom: 8px;
    }

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

    .search-form {
      display: grid;
      gap: 10px;
    }

    .field-row {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 10px;
    }

    .search-input,
    .select-input {
      min-height: 48px;
      width: 100%;
      border: 1px solid var(--line-strong);
      border-radius: var(--radius-sm);
      background: #fff;
      color: var(--text);
      padding: 0 14px;
      transition: border-color .2s ease, box-shadow .2s ease;
    }

    .search-input:focus,
    .select-input:focus {
      border-color: var(--brand);
      box-shadow: 0 0 0 4px rgba(36, 87, 255, .10);
      outline: none;
    }

    .mini-metrics {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 10px;
      margin-top: 16px;
    }

    .metric {
      border: 1px solid var(--line);
      background: #fff;
      border-radius: var(--radius-sm);
      padding: 12px;
    }

    .metric b {
      display: block;
      font-size: 22px;
      line-height: 1;
      margin-bottom: 6px;
    }

    .metric span {
      color: var(--muted);
      font-size: 12px;
    }

    .anchor-strip {
      position: sticky;
      top: var(--header-h);
      z-index: 40;
      background: rgba(251, 250, 246, .88);
      backdrop-filter: blur(16px);
      border-top: 1px solid rgba(228, 231, 225, .72);
      border-bottom: 1px solid rgba(228, 231, 225, .9);
    }

    .anchor-row {
      display: flex;
      gap: 8px;
      overflow-x: auto;
      padding: 10px 0;
      scrollbar-width: none;
    }

    .anchor-row::-webkit-scrollbar {
      display: none;
    }

    .anchor-row a {
      flex: 0 0 auto;
      padding: 7px 12px;
      border: 1px solid transparent;
      border-radius: 999px;
      color: #49505a;
      font-size: 13px;
      font-weight: 750;
    }

    .anchor-row a:hover {
      border-color: var(--line-strong);
      background: #fff;
      color: var(--brand);
    }

    .section-head {
      display: grid;
      grid-template-columns: minmax(0, .78fr) minmax(260px, .22fr);
      gap: 26px;
      align-items: end;
      margin-bottom: 28px;
    }

    .section-title {
      margin: 0;
      font-size: clamp(26px, 3vw, 42px);
      line-height: 1.14;
      letter-spacing: 0;
    }

    .section-desc {
      margin: 10px 0 0;
      color: var(--muted);
      max-width: 760px;
    }

    .status-note {
      border-left: 3px solid var(--brand-2);
      padding: 10px 0 10px 14px;
      color: var(--muted);
      font-size: 14px;
      background: linear-gradient(90deg, rgba(0, 185, 200, .08), transparent);
    }

    .filter-bar {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      padding: 14px;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      background: rgba(255, 255, 255, .74);
      box-shadow: var(--shadow-sm);
      margin-bottom: 22px;
    }

    .tag,
    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      min-height: 30px;
      padding: 0 10px;
      border-radius: 999px;
      border: 1px solid var(--line);
      background: #fff;
      color: #4f5661;
      font-size: 13px;
      font-weight: 740;
      white-space: nowrap;
    }

    .tag.is-active {
      color: #fff;
      background: var(--text);
      border-color: var(--text);
    }

    .tag:hover {
      border-color: var(--brand);
      color: var(--brand);
      transform: translateY(-1px);
    }

    .badge.update {
      color: #075f65;
      background: rgba(0, 185, 200, .12);
      border-color: rgba(0, 185, 200, .25);
    }

    .badge.verify {
      color: #0f6c4d;
      background: rgba(25, 167, 111, .12);
      border-color: rgba(25, 167, 111, .24);
    }

    .badge.hot {
      color: #9d1537;
      background: rgba(232, 61, 97, .11);
      border-color: rgba(232, 61, 97, .24);
    }

    .badge.warn {
      color: #7a4a05;
      background: rgba(242, 155, 24, .13);
      border-color: rgba(242, 155, 24, .25);
    }

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

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

    .entry-card {
      display: grid;
      grid-template-columns: 96px minmax(0, 1fr) auto;
      gap: 16px;
      align-items: center;
      padding: 18px;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      background: rgba(255, 255, 255, .86);
      box-shadow: 0 8px 20px rgba(17, 19, 23, .04);
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }

    .entry-card:hover {
      transform: translateY(-2px);
      border-color: rgba(36, 87, 255, .28);
      box-shadow: var(--shadow-sm);
    }

    .date-box {
      border-radius: var(--radius-sm);
      background: #111317;
      color: #fff;
      text-align: center;
      padding: 12px 8px;
      line-height: 1.1;
    }

    .date-box span {
      display: block;
      font-size: 12px;
      color: rgba(255, 255, 255, .68);
      margin-bottom: 6px;
    }

    .date-box b {
      display: block;
      font-size: 20px;
    }

    .entry-main h2 {
      margin: 0 0 7px;
      font-size: 19px;
      line-height: 1.35;
      letter-spacing: 0;
    }

    .entry-main p {
      margin: 0 0 10px;
      color: var(--muted);
      font-size: 14px;
    }

    .entry-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .entry-action {
      align-self: stretch;
      display: flex;
      align-items: center;
    }

    .side-stack {
      display: grid;
      gap: 14px;
      position: sticky;
      top: 130px;
    }

    .side-card,
    .panel-card,
    .price-card,
    .faq-item {
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      background: rgba(255, 255, 255, .88);
      box-shadow: var(--shadow-sm);
    }

    .side-card {
      padding: 18px;
    }

    .side-card h3 {
      margin: 0 0 12px;
      font-size: 17px;
    }

    .side-list {
      list-style: none;
      padding: 0;
      margin: 0;
      display: grid;
      gap: 11px;
    }

    .side-list li {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      color: var(--muted);
      font-size: 14px;
      border-bottom: 1px dashed var(--line);
      padding-bottom: 10px;
    }

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

    .side-list strong {
      color: var(--text);
      white-space: nowrap;
    }

    .demo-area {
      display: grid;
      grid-template-columns: .9fr 1.1fr;
      gap: 22px;
      align-items: stretch;
    }

    .step-list {
      display: grid;
      gap: 12px;
      counter-reset: steps;
    }

    .step-item {
      counter-increment: steps;
      display: grid;
      grid-template-columns: 40px 1fr;
      gap: 12px;
      padding: 16px;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      background: #fff;
    }

    .step-item::before {
      content: counter(steps);
      width: 36px;
      height: 36px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 50%;
      color: #fff;
      font-weight: 850;
      background: var(--gradient);
    }

    .step-item strong {
      display: block;
      margin-bottom: 4px;
    }

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

    .preview-board {
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      padding: 20px;
      background: #111317;
      color: #fff;
      box-shadow: var(--shadow-md);
    }

    .preview-head {
      display: flex;
      justify-content: space-between;
      gap: 16px;
      align-items: center;
      padding-bottom: 14px;
      border-bottom: 1px solid rgba(255, 255, 255, .12);
      margin-bottom: 14px;
    }

    .preview-head strong {
      font-size: 18px;
    }

    .signal-row {
      display: grid;
      gap: 10px;
    }

    .signal {
      display: grid;
      grid-template-columns: 14px 1fr auto;
      align-items: center;
      gap: 10px;
      padding: 12px;
      border-radius: var(--radius-sm);
      background: rgba(255, 255, 255, .07);
      border: 1px solid rgba(255, 255, 255, .10);
    }

    .dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: var(--brand-2);
      box-shadow: 0 0 0 5px rgba(0, 185, 200, .12);
    }

    .dot.ok {
      background: var(--ok);
      box-shadow: 0 0 0 5px rgba(25, 167, 111, .14);
    }

    .dot.warn {
      background: var(--warn);
      box-shadow: 0 0 0 5px rgba(242, 155, 24, .14);
    }

    .signal span {
      color: rgba(255, 255, 255, .72);
      font-size: 13px;
    }

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

    .evidence-card {
      padding: 20px;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      background: #fff;
      min-height: 155px;
    }

    .evidence-card b {
      display: block;
      font-size: 32px;
      line-height: 1;
      margin-bottom: 12px;
    }

    .evidence-card h3 {
      margin: 0 0 8px;
      font-size: 16px;
    }

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

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

    .price-card {
      padding: 22px;
      display: flex;
      flex-direction: column;
      min-height: 360px;
      position: relative;
    }

    .price-card.recommended {
      border-color: rgba(36, 87, 255, .38);
      box-shadow: 0 22px 52px rgba(36, 87, 255, .12);
    }

    .price-card h3 {
      margin: 0 0 8px;
      font-size: 22px;
    }

    .price-card .price {
      margin: 10px 0 14px;
      font-size: 34px;
      font-weight: 900;
      line-height: 1;
    }

    .price-card .price small {
      color: var(--muted);
      font-size: 14px;
      font-weight: 650;
    }

    .feature-list {
      list-style: none;
      padding: 0;
      margin: 8px 0 20px;
      display: grid;
      gap: 10px;
      color: var(--muted);
    }

    .feature-list li {
      display: grid;
      grid-template-columns: 18px 1fr;
      gap: 9px;
      font-size: 14px;
    }

    .feature-list li::before {
      content: "";
      width: 10px;
      height: 10px;
      margin-top: 7px;
      border-radius: 50%;
      background: var(--ok);
    }

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

    .faq-wrap {
      display: grid;
      grid-template-columns: .36fr .64fr;
      gap: 28px;
      align-items: start;
    }

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

    .faq-item {
      overflow: hidden;
    }

    .faq-question {
      width: 100%;
      min-height: 58px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding: 0 18px;
      border: 0;
      background: #fff;
      color: var(--text);
      font-weight: 820;
      text-align: left;
    }

    .faq-question::after {
      content: "+";
      flex: 0 0 auto;
      width: 28px;
      height: 28px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border: 1px solid var(--line);
      border-radius: 50%;
      color: var(--brand);
      transition: transform .2s ease, background .2s ease;
    }

    .faq-item.is-open .faq-question::after {
      content: "−";
      background: rgba(36, 87, 255, .08);
      transform: rotate(180deg);
    }

    .faq-answer {
      display: none;
      padding: 0 18px 18px;
      color: var(--muted);
      border-top: 1px solid var(--line);
      background: linear-gradient(180deg, #fff, #fbfcfb);
    }

    .faq-answer p {
      margin: 14px 0 0;
    }

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

    .cta-band {
      border-radius: var(--radius-lg);
      padding: 34px;
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 24px;
      align-items: center;
      color: #fff;
      background:
        linear-gradient(135deg, rgba(36, 87, 255, .94), rgba(0, 185, 200, .88) 54%, rgba(255, 93, 93, .9)),
        #111317;
      box-shadow: var(--shadow-md);
    }

    .cta-band h2 {
      margin: 0 0 8px;
      font-size: clamp(24px, 3vw, 36px);
      line-height: 1.18;
    }

    .cta-band p {
      margin: 0;
      color: rgba(255, 255, 255, .84);
    }

    .cta-band .btn {
      background: #fff;
      color: var(--text);
      box-shadow: none;
    }

    .site-footer {
      padding: 54px 0 28px;
      background: #111317;
      color: rgba(255, 255, 255, .78);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 32px;
      padding-bottom: 28px;
      border-bottom: 1px solid rgba(255, 255, 255, .12);
    }

    .footer-brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 12px;
      color: #fff;
      font-weight: 850;
    }

    .site-footer p {
      max-width: 560px;
      margin: 0;
      color: rgba(255, 255, 255, .64);
    }

    .footer-links {
      display: flex;
      flex-wrap: wrap;
      justify-content: flex-end;
      gap: 10px 16px;
      align-content: start;
    }

    .footer-links a {
      color: rgba(255, 255, 255, .76);
      font-size: 14px;
      transition: color .2s ease;
    }

    .footer-links a:hover {
      color: #fff;
    }

    .copyright {
      padding-top: 18px;
      color: rgba(255, 255, 255, .48);
      font-size: 13px;
    }

    .floating-cta {
      position: fixed;
      right: 22px;
      bottom: 22px;
      z-index: 45;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      min-height: 48px;
      padding: 0 18px;
      border-radius: 999px;
      color: #fff;
      background: var(--text);
      box-shadow: 0 18px 42px rgba(17, 19, 23, .25);
      font-weight: 820;
      transition: transform .2s ease, box-shadow .2s ease;
    }

    .floating-cta:hover {
      transform: translateY(-3px);
      box-shadow: 0 24px 52px rgba(17, 19, 23, .30);
    }

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

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

      .evidence-grid,
      .price-grid {
        grid-template-columns: repeat(2, 1fr);
      }

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

      .nav-links {
        gap: 0;
      }

      .nav-links a {
        padding-left: 9px;
        padding-right: 9px;
      }
    }

    @media (max-width: 768px) {
      :root {
        --header-h: 64px;
      }

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

      .mobile-toggle {
        display: block;
      }

      .nav-shell {
        min-height: var(--header-h);
        flex-wrap: wrap;
      }

      .nav-links {
        order: 4;
        width: 100%;
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 0 0 14px;
      }

      .nav-links.is-open {
        display: flex;
      }

      .nav-links a {
        padding: 11px 12px;
      }

      .nav-cta {
        display: none;
      }

      .hero {
        padding-top: 34px;
      }

      .hero-copy {
        padding: 8px 0 0;
      }

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

      .mini-metrics,
      .side-stack,
      .evidence-grid,
      .price-grid,
      .footer-grid,
      .cta-band {
        grid-template-columns: 1fr;
      }

      .entry-card {
        grid-template-columns: 1fr;
        gap: 12px;
      }

      .date-box {
        width: 110px;
        text-align: left;
      }

      .entry-action {
        align-self: auto;
      }

      .entry-action .btn {
        width: 100%;
      }

      .section {
        padding: 58px 0;
      }

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

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

    @media (max-width: 520px) {
      h1 {
        font-size: 34px;
      }

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

      .hero-panel,
      .cta-band {
        padding: 18px;
      }

      .button-row,
      .hero-actions {
        align-items: stretch;
      }

      .btn {
        width: 100%;
      }

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

      .signal {
        grid-template-columns: 12px 1fr;
      }

      .signal span {
        grid-column: 2;
      }

      .anchor-strip {
        top: 64px;
      }
    }

/* roulang page: category2 */
:root{
  --bg:#f7f4ee;
  --bg-2:#fcfaf6;
  --card:#ffffff;
  --text:#191919;
  --muted:#66615a;
  --soft:#8e887f;
  --line:rgba(24,24,24,.09);
  --line-strong:rgba(24,24,24,.14);
  --brand:#0f6bff;
  --brand-2:#25d0b3;
  --brand-3:#ff6a5c;
  --ok:#1f9d57;
  --warn:#d98a14;
  --info:#266ef1;
  --shadow:0 18px 50px rgba(35,28,18,.08);
  --shadow-sm:0 8px 24px rgba(35,28,18,.06);
  --radius:18px;
  --radius-sm:12px;
  --radius-xs:10px;
  --container:1180px;
  --gap:24px;
  --transition:.24s ease;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  color:var(--text);
  background:
    radial-gradient(circle at top left, rgba(15,107,255,.08), transparent 34%),
    radial-gradient(circle at top right, rgba(37,208,179,.08), transparent 28%),
    linear-gradient(180deg, #fbf8f2 0%, var(--bg) 100%);
  line-height:1.75;
  text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none;transition:all var(--transition)}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit}
::selection{background:rgba(15,107,255,.16)}
.container{
  width:min(var(--container), calc(100% - 32px));
  margin:0 auto;
}
.skip-link{
  position:absolute;
  left:-9999px;
  top:12px;
  background:#000;
  color:#fff;
  padding:10px 14px;
  border-radius:999px;
  z-index:1000;
}
.skip-link:focus{left:12px}
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  backdrop-filter:blur(16px);
  background:rgba(250,247,240,.82);
  border-bottom:1px solid rgba(20,20,20,.08);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  min-height:76px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  font-weight:800;
  letter-spacing:.02em;
  color:#121212;
  white-space:nowrap;
}
.brand-mark,
.footer-brand .brand-mark{
  width:14px;height:14px;border-radius:50%;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 0 0 5px rgba(15,107,255,.12);
  display:inline-block;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:22px;
  flex-wrap:wrap;
  justify-content:center;
}
.nav-links a{
  position:relative;
  padding:10px 2px;
  color:var(--muted);
  font-weight:600;
  font-size:15px;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;
  bottom:6px;
  width:100%;
  height:2px;
  border-radius:999px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--transition);
}
.nav-links a:hover{color:var(--text)}
.nav-links a:hover::after,
.nav-links a.active::after{transform:scaleX(1)}
.nav-cta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:11px 16px;
  border-radius:999px;
  background:linear-gradient(135deg,var(--brand),#0054d8);
  color:#fff;
  box-shadow:0 12px 30px rgba(15,107,255,.2);
  font-weight:700;
  white-space:nowrap;
}
.nav-cta:hover{transform:translateY(-1px);filter:saturate(1.05)}
.hero{
  padding:28px 0 8px;
}
.notice-bar{
  display:flex;
  align-items:center;
  gap:12px;
  justify-content:space-between;
  flex-wrap:wrap;
  padding:14px 18px;
  border:1px solid rgba(15,107,255,.14);
  border-radius:999px;
  background:linear-gradient(135deg, rgba(15,107,255,.08), rgba(37,208,179,.08));
  box-shadow:var(--shadow-sm);
}
.notice-bar strong{font-size:14px}
.notice-bar span{color:var(--muted);font-size:14px}
.hero-grid{
  display:grid;
  grid-template-columns:1.08fr .92fr;
  gap:24px;
  align-items:stretch;
  margin-top:18px;
}
.hero-copy,
.hero-panel,
.panel-card,
.section-card,
.price-card,
.faq-item,
.stat-card,
.side-card{
  background:rgba(255,255,255,.82);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}
.hero-copy{
  padding:34px;
  display:flex;
  flex-direction:column;
  justify-content:center;
  min-height:420px;
}
.kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  width:fit-content;
  padding:7px 12px;
  border-radius:999px;
  background:rgba(15,107,255,.09);
  color:#0b4fd7;
  font-size:13px;
  font-weight:700;
}
.kicker .dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--brand-3);
  box-shadow:0 0 0 4px rgba(255,106,92,.14);
}
.hero h1{
  margin:16px 0 14px;
  font-size:clamp(34px,4.5vw,58px);
  line-height:1.08;
  letter-spacing:-.03em;
}
.hero p{
  margin:0;
  color:var(--muted);
  font-size:16px;
  max-width:46ch;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:24px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 18px;
  border-radius:999px;
  border:1px solid transparent;
  cursor:pointer;
  font-weight:700;
  transition:all var(--transition);
  user-select:none;
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),#0058e0);
  color:#fff;
  box-shadow:0 14px 30px rgba(15,107,255,.18);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 18px 36px rgba(15,107,255,.24)}
.btn-secondary{
  background:#fff;
  border-color:var(--line-strong);
  color:var(--text);
}
.btn-secondary:hover{border-color:rgba(15,107,255,.26);color:#0d51d8;transform:translateY(-1px)}
.btn-light{
  background:rgba(15,107,255,.06);
  color:#0d51d8;
}
.btn-light:hover{background:rgba(15,107,255,.1)}
.btn:focus-visible,
input:focus-visible,
select:focus-visible,
summary:focus-visible{
  outline:3px solid rgba(15,107,255,.22);
  outline-offset:2px;
}
.hero-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:22px;
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:8px 12px;
  border-radius:999px;
  background:#fff;
  border:1px solid var(--line);
  font-size:13px;
  color:var(--muted);
}
.tag strong{color:var(--text)}
.hero-panel{
  padding:22px;
  display:grid;
  gap:14px;
}
.panel-top{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:14px;
}
.panel-title{
  margin:0;
  font-size:18px;
}
.panel-note{
  color:var(--muted);
  font-size:13px;
}
.matrix{
  display:grid;
  gap:12px;
}
.matrix-grid{
  display:grid;
  grid-template-columns:repeat(2, minmax(0,1fr));
  gap:12px;
}
.mini-card{
  border-radius:16px;
  border:1px solid var(--line);
  background:linear-gradient(180deg,#fff, #faf9f6);
  padding:16px;
}
.mini-card .mini-label{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  margin-bottom:10px;
  color:var(--muted);
  font-size:13px;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 10px;
  border-radius:999px;
  font-size:12px;
  font-weight:700;
  white-space:nowrap;
}
.badge.ok{background:rgba(31,157,87,.12);color:var(--ok)}
.badge.info{background:rgba(38,110,241,.12);color:var(--info)}
.badge.warn{background:rgba(217,138,20,.12);color:var(--warn)}
.badge.hot{background:rgba(255,106,92,.12);color:#cb4a3e}
.mini-card h3{
  margin:0 0 6px;
  font-size:16px;
}
.mini-card p{
  margin:0;
  color:var(--muted);
  font-size:13px;
  line-height:1.7;
}
.progress-line{
  height:10px;
  border-radius:999px;
  background:#ece7df;
  overflow:hidden;
  margin-top:12px;
}
.progress-line span{
  display:block;
  height:100%;
  border-radius:inherit;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
}
.progress-row{
  display:flex;
  justify-content:space-between;
  gap:12px;
  color:var(--muted);
  font-size:13px;
  margin-top:6px;
}
.floating-cta{
  position:fixed;
  right:18px;
  bottom:18px;
  z-index:40;
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:14px 18px;
  border-radius:999px;
  background:linear-gradient(135deg,#0f6bff,#26c9b7);
  color:#fff;
  box-shadow:0 18px 40px rgba(15,107,255,.28);
  font-weight:800;
}
.floating-cta:hover{transform:translateY(-2px)}
main{padding:22px 0 40px}
.section{
  margin-top:24px;
}
.section-card{
  padding:24px;
}
.section-head{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap:16px;
  flex-wrap:wrap;
  margin-bottom:18px;
}
.section-head h2{
  margin:0;
  font-size:28px;
  line-height:1.16;
}
.section-head p{
  margin:0;
  color:var(--muted);
  max-width:62ch;
}
.layout-two{
  display:grid;
  grid-template-columns:320px minmax(0,1fr);
  gap:22px;
  align-items:start;
}
.side-sticky{
  position:sticky;
  top:94px;
  display:grid;
  gap:14px;
}
.side-card{
  padding:18px;
}
.side-card h3{
  margin:0 0 10px;
  font-size:18px;
}
.filter-list{
  display:grid;
  gap:10px;
}
.filter-chip{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:12px 14px;
  border-radius:14px;
  border:1px solid var(--line);
  background:#fff;
}
.filter-chip:hover{
  border-color:rgba(15,107,255,.22);
  transform:translateY(-1px);
}
.filter-chip .left{
  display:flex;
  align-items:center;
  gap:10px;
}
.marker{
  width:10px;height:10px;border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 0 4px rgba(15,107,255,.12);
}
.marker.green{background:var(--ok);box-shadow:0 0 0 4px rgba(31,157,87,.12)}
.marker.orange{background:var(--warn);box-shadow:0 0 0 4px rgba(217,138,20,.12)}
.marker.red{background:var(--brand-3);box-shadow:0 0 0 4px rgba(255,106,92,.12)}
.filter-chip span{
  color:var(--text);
  font-weight:700;
}
.filter-chip small{
  color:var(--muted);
}
.summary-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:14px;
}
.stat-card{
  padding:18px;
}
.stat-card .label{
  color:var(--muted);
  font-size:13px;
}
.stat-card .value{
  margin-top:8px;
  font-size:30px;
  font-weight:800;
  letter-spacing:-.02em;
}
.stat-card .desc{
  margin-top:8px;
  color:var(--muted);
  font-size:13px;
}
.flow-list{
  display:grid;
  gap:14px;
}
.flow-item{
  display:grid;
  grid-template-columns:auto 1fr auto;
  gap:14px;
  align-items:flex-start;
  padding:18px;
  border-radius:18px;
  border:1px solid var(--line);
  background:linear-gradient(180deg,#fff, #fcfbf7);
}
.flow-index{
  width:34px;height:34px;border-radius:12px;
  display:grid;place-items:center;
  background:rgba(15,107,255,.1);
  color:#0a57df;
  font-weight:800;
}
.flow-body h3{
  margin:0 0 6px;
  font-size:18px;
}
.flow-body p{
  margin:0;
  color:var(--muted);
}
.flow-meta{
  display:grid;
  justify-items:end;
  gap:8px;
  text-align:right;
}
.flow-meta .time{
  color:var(--muted);
  font-size:13px;
}
.flow-meta .link{
  color:#0d51d8;
  font-weight:700;
  font-size:13px;
}
.demo-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:14px;
}
.demo-card{
  padding:18px;
  border:1px solid var(--line);
  border-radius:16px;
  background:#fff;
}
.demo-card h3{
  margin:12px 0 8px;
  font-size:17px;
}
.demo-card p{
  margin:0;
  color:var(--muted);
  font-size:14px;
}
.demo-step{
  width:40px;height:40px;border-radius:14px;
  display:grid;place-items:center;
  background:linear-gradient(135deg, rgba(15,107,255,.14), rgba(37,208,179,.14));
  color:#0d51d8;
  font-weight:800;
}
.evidence-grid{
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:18px;
}
.evidence-box{
  padding:22px;
  border-radius:18px;
  border:1px solid var(--line);
  background:linear-gradient(180deg,#fff,#fbfaf7);
}
.evidence-box h3{
  margin:0 0 12px;
  font-size:20px;
}
.evidence-box p{margin:0;color:var(--muted)}
.evidence-points{
  display:grid;
  gap:12px;
  margin-top:16px;
}
.evidence-point{
  display:flex;
  gap:12px;
  align-items:flex-start;
  padding:14px 0;
  border-top:1px dashed rgba(24,24,24,.1);
}
.evidence-point:first-child{border-top:0;padding-top:0}
.evidence-point strong{
  min-width:88px;
  font-size:14px;
}
.evidence-point span{
  color:var(--muted);
  font-size:14px;
}
.quote-card{
  position:relative;
  padding:22px;
  border-radius:18px;
  border:1px solid rgba(15,107,255,.18);
  background:
    linear-gradient(180deg, rgba(15,107,255,.08), rgba(37,208,179,.08)),
    #fff;
}
.quote-card .quote{
  font-size:18px;
  line-height:1.7;
  margin:0 0 10px;
}
.quote-card .byline{
  color:var(--muted);
  font-size:13px;
}
.price-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:14px;
}
.price-card{
  padding:22px;
  position:relative;
}
.price-card.recommended{
  border-color:rgba(15,107,255,.24);
  box-shadow:0 20px 48px rgba(15,107,255,.12);
  transform:translateY(-4px);
}
.price-card .topline{
  display:flex;
  justify-content:space-between;
  gap:12px;
  align-items:flex-start;
}
.price-card h3{
  margin:0;
  font-size:20px;
}
.price-card .price{
  margin:16px 0 10px;
  font-size:34px;
  font-weight:900;
  letter-spacing:-.03em;
}
.price-card .price small{
  font-size:14px;
  color:var(--muted);
  font-weight:600;
}
.price-card .desc{
  color:var(--muted);
  margin:0 0 18px;
}
.check-list{
  list-style:none;
  padding:0;
  margin:0 0 18px;
  display:grid;
  gap:10px;
}
.check-list li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  color:var(--text);
  font-size:14px;
}
.check-list li::before{
  content:"";
  width:18px;height:18px;
  border-radius:50%;
  margin-top:3px;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 0 0 4px rgba(15,107,255,.1);
  flex:none;
}
.price-actions{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
}
.faq-wrap{
  display:grid;
  gap:12px;
}
.faq-item{
  padding:4px 18px;
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:16px 0;
  font-weight:700;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary span{
  color:var(--muted);
  font-weight:600;
  font-size:14px;
}
.faq-item .answer{
  color:var(--muted);
  padding:0 0 18px;
  margin-top:-6px;
}
.cta-band{
  margin-top:22px;
  padding:24px;
  border-radius:24px;
  background:linear-gradient(135deg,#0c57d8,#1ab8b4);
  color:#fff;
  box-shadow:0 20px 46px rgba(13,81,216,.2);
}
.cta-band .inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
}
.cta-band h2{
  margin:0 0 8px;
  font-size:28px;
}
.cta-band p{
  margin:0;
  max-width:58ch;
  color:rgba(255,255,255,.88);
}
.cta-band .btn-secondary{
  background:rgba(255,255,255,.14);
  border-color:rgba(255,255,255,.18);
  color:#fff;
}
.site-footer{
  margin-top:26px;
  padding:30px 0 84px;
  border-top:1px solid rgba(24,24,24,.08);
  background:rgba(255,255,255,.5);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.2fr .8fr;
  gap:24px;
  align-items:start;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  font-weight:800;
  font-size:18px;
  margin-bottom:10px;
}
.footer-grid p{
  margin:0;
  color:var(--muted);
  max-width:52ch;
}
.footer-links{
  display:grid;
  gap:10px;
  justify-items:start;
}
.footer-links a{
  color:var(--muted);
  font-weight:600;
}
.footer-links a:hover{color:var(--text)}
.copyright{
  margin-top:20px;
  padding-top:18px;
  border-top:1px solid rgba(24,24,24,.08);
  color:var(--soft);
  font-size:13px;
}
.bottom-bar{
  position:fixed;
  left:50%;
  bottom:18px;
  transform:translateX(-50%);
  z-index:35;
  width:min(760px, calc(100% - 24px));
  padding:10px;
  border-radius:999px;
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(16px);
  border:1px solid rgba(24,24,24,.08);
  box-shadow:var(--shadow);
  display:none;
}
.bottom-bar .row{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:10px;
}
.bottom-bar .row a{
  flex:1;
  text-align:center;
  padding:10px 12px;
  border-radius:999px;
  color:var(--muted);
  font-weight:700;
}
.bottom-bar .row a.active{
  background:rgba(15,107,255,.1);
  color:#0d51d8;
}
.divider{
  height:1px;
  background:linear-gradient(90deg, transparent, rgba(24,24,24,.12), transparent);
  margin:24px 0;
}
@media (max-width: 1080px){
  .hero-grid,
  .layout-two,
  .evidence-grid{
    grid-template-columns:1fr;
  }
  .side-sticky{position:static}
  .summary-grid,
  .price-grid{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
}
@media (max-width: 900px){
  .header-inner{flex-wrap:wrap;padding:12px 0}
  .nav-links{gap:16px;justify-content:flex-start}
  .hero-copy{min-height:auto;padding:26px}
  .demo-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .matrix-grid{grid-template-columns:1fr}
}
@media (max-width: 720px){
  .section-card{padding:18px}
  .hero h1{font-size:clamp(30px,10vw,42px)}
  .summary-grid,
  .price-grid,
  .demo-grid{
    grid-template-columns:1fr;
  }
  .flow-item{
    grid-template-columns:1fr;
  }
  .flow-meta{text-align:left;justify-items:start}
  .hero-actions,.price-actions,.cta-band .inner{
    width:100%;
  }
  .nav-cta{display:none}
  .nav-links{
    overflow-x:auto;
    scrollbar-width:none;
    padding-bottom:2px;
    white-space:nowrap;
    width:100%;
  }
  .nav-links::-webkit-scrollbar{display:none}
  .floating-cta{right:12px;bottom:12px;padding:12px 16px}
  .site-footer{padding-bottom:106px}
  .bottom-bar{display:block}
}
@media (max-width: 520px){
  .container{width:min(var(--container), calc(100% - 22px))}
  .hero-copy,.hero-panel,.section-card,.side-card,.price-card,.evidence-box,.quote-card{border-radius:16px}
  .section-head h2{font-size:23px}
  .cta-band{border-radius:18px}
  .cta-band h2{font-size:24px}
  .notice-bar{border-radius:18px}
}