/* roulang page: index */
:root {
      --bg: #F6F2EA;
      --bg-soft: #F8F7F3;
      --panel: #FFFDF8;
      --panel-warm: #ECE7DD;
      --text: #20231F;
      --muted: #66645D;
      --light: #FAF7EF;
      --primary: #24443A;
      --primary-deep: #18332B;
      --secondary: #A66F3F;
      --secondary-soft: #F0E1D1;
      --accent: #4FA3A5;
      --amber: #D89B43;
      --border: rgba(32, 35, 31, .12);
      --border-strong: rgba(36, 68, 58, .22);
      --shadow: 0 18px 45px rgba(33, 29, 24, .08);
      --shadow-hover: 0 22px 55px rgba(33, 29, 24, .13);
      --radius: 10px;
      --radius-sm: 8px;
      --container: 1200px;
      --ease: .22s ease;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      color: var(--text);
      background:
        radial-gradient(circle at 18% 10%, rgba(196, 154, 108, .18), transparent 28%),
        linear-gradient(180deg, var(--bg) 0%, #F8F7F3 48%, #F1EADF 100%);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
      font-size: 16px;
      line-height: 1.72;
      letter-spacing: 0;
      padding-bottom: 0;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color var(--ease), background var(--ease), border-color var(--ease), transform var(--ease), box-shadow var(--ease);
    }

    button,
    input {
      font: inherit;
    }

    input {
      outline: none;
    }

    input:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 4px rgba(79, 163, 165, .14);
      background: #fff;
    }

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

    .site-shell {
      overflow: hidden;
      min-height: 100vh;
    }

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      backdrop-filter: blur(14px);
      background: rgba(248, 247, 243, .88);
      border-bottom: 1px solid var(--border);
    }

    .top-bar {
      min-height: 56px;
      padding: 0;
      background: transparent;
    }

    .nav-inner {
      display: grid;
      grid-template-columns: minmax(340px, 1fr) minmax(360px, .92fr);
      align-items: center;
      gap: 22px;
      width: min(var(--container), calc(100% - 40px));
      margin: 0 auto;
      min-height: 56px;
    }

    .nav-left,
    .nav-right,
    .nav-links,
    .nav-actions {
      display: flex;
      align-items: center;
    }

    .nav-left {
      gap: 24px;
      min-width: 0;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      min-width: 0;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.18;
    }

    .brand-mark {
      width: 32px;
      height: 32px;
      border-radius: 9px;
      display: grid;
      place-items: center;
      flex: 0 0 auto;
      color: var(--light);
      background: linear-gradient(135deg, var(--primary), var(--accent));
      box-shadow: 0 10px 22px rgba(36, 68, 58, .2);
    }

    .brand-name {
      white-space: normal;
      font-size: 15px;
      max-width: 210px;
    }

    .nav-links {
      gap: 6px;
      flex-wrap: wrap;
    }

    .nav-links a {
      padding: 7px 10px;
      border-radius: 999px;
      color: #3B3B35;
      font-size: 14px;
      line-height: 1;
    }

    .nav-links a:hover,
    .nav-links a.active {
      color: var(--primary);
      background: rgba(36, 68, 58, .08);
    }

    .nav-right {
      justify-content: flex-end;
      gap: 12px;
      min-width: 0;
    }

    .nav-search {
      position: relative;
      flex: 1 1 210px;
      max-width: 280px;
    }

    .nav-search input {
      width: 100%;
      height: 38px;
      border: 1px solid var(--border);
      border-radius: 999px;
      padding: 0 38px 0 14px;
      color: var(--text);
      background: rgba(255, 253, 248, .78);
      font-size: 14px;
    }

    .nav-search span {
      position: absolute;
      right: 13px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--muted);
      font-size: 14px;
    }

    .menu-toggle {
      display: none;
      width: 38px;
      height: 38px;
      border: 1px solid var(--border);
      border-radius: 999px;
      background: var(--panel);
      color: var(--primary);
      cursor: pointer;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 42px;
      padding: 11px 18px;
      border-radius: 999px;
      border: 1px solid transparent;
      font-weight: 700;
      line-height: 1.1;
      cursor: pointer;
      transition: transform var(--ease), box-shadow var(--ease), background var(--ease), color var(--ease), border-color var(--ease);
      white-space: nowrap;
    }

    .btn-primary {
      color: var(--light);
      background: var(--primary);
      box-shadow: 0 13px 26px rgba(36, 68, 58, .2);
    }

    .btn-primary:hover,
    .btn-primary:focus {
      color: var(--light);
      background: var(--primary-deep);
      transform: translateY(-1px);
      box-shadow: 0 17px 34px rgba(36, 68, 58, .25);
    }

    .btn-secondary {
      color: var(--primary);
      background: rgba(255, 253, 248, .76);
      border-color: var(--border-strong);
    }

    .btn-secondary:hover,
    .btn-secondary:focus {
      color: var(--primary-deep);
      background: #fff;
      border-color: var(--secondary);
      transform: translateY(-1px);
    }

    .btn-copper {
      color: #241B12;
      background: var(--secondary-soft);
      border-color: rgba(166, 111, 63, .28);
    }

    .btn-copper:hover,
    .btn-copper:focus {
      background: #E7C69E;
      color: #1C1712;
      transform: translateY(-1px);
    }

    .hero {
      position: relative;
      padding: 72px 0 86px;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: minmax(280px, .94fr) minmax(360px, 1.16fr) minmax(230px, .72fr);
      align-items: center;
      gap: 26px;
    }

    .hero-side {
      display: grid;
      gap: 14px;
    }

    .value-note,
    .route-card,
    .stage-card,
    .metric-card,
    .price-card,
    .news-list,
    .proof-card,
    .faq-wrap,
    .tool-panel,
    .quote-card {
      background: rgba(255, 253, 248, .86);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
    }

    .value-note {
      padding: 18px;
    }

    .value-note strong {
      display: block;
      color: var(--primary);
      font-size: 17px;
      margin-bottom: 7px;
    }

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

    .hero-center {
      text-align: center;
      padding: 14px 0;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--primary);
      background: rgba(36, 68, 58, .08);
      border: 1px solid rgba(36, 68, 58, .14);
      border-radius: 999px;
      padding: 7px 12px;
      font-size: 13px;
      font-weight: 700;
      margin-bottom: 18px;
    }

    .hero h1 {
      max-width: 760px;
      margin: 0 auto 18px;
      font-size: clamp(32px, 5vw, 54px);
      line-height: 1.13;
      letter-spacing: 0;
      color: var(--text);
    }

    .hero-desc {
      max-width: 700px;
      margin: 0 auto 24px;
      color: var(--muted);
      font-size: 17px;
    }

    .hero-actions,
    .hero-data {
      display: flex;
      justify-content: center;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 18px;
    }

    .data-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 12px;
      border-radius: 999px;
      border: 1px solid var(--border);
      background: rgba(255, 253, 248, .72);
      color: #4E4A43;
      font-size: 14px;
    }

    .stage {
      margin-top: 30px;
      background:
        linear-gradient(135deg, rgba(36, 68, 58, .95), rgba(47, 79, 70, .92)),
        linear-gradient(180deg, #24443A, #18332B);
      border-radius: 14px;
      padding: 18px;
      box-shadow: 0 24px 65px rgba(33, 29, 24, .18);
      border: 1px solid rgba(255, 253, 248, .18);
      color: var(--light);
    }

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

    .stage-title {
      font-weight: 800;
    }

    .status-dot {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      font-size: 13px;
      color: rgba(250, 247, 239, .88);
    }

    .status-dot::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 999px;
      background: var(--accent);
      box-shadow: 0 0 0 5px rgba(79, 163, 165, .18);
    }

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

    .entry-cell {
      min-height: 90px;
      padding: 13px;
      border-radius: 8px;
      background: rgba(255, 253, 248, .1);
      border: 1px solid rgba(255, 253, 248, .16);
      text-align: left;
    }

    .entry-cell b {
      display: block;
      font-size: 15px;
      margin-bottom: 6px;
    }

    .entry-cell span {
      display: block;
      color: rgba(250, 247, 239, .72);
      font-size: 13px;
      line-height: 1.55;
    }

    .section {
      padding: 86px 0;
      position: relative;
    }

    .section-tight {
      padding-top: 40px;
    }

    .section-head {
      display: grid;
      grid-template-columns: minmax(240px, .72fr) minmax(320px, 1fr);
      align-items: end;
      gap: 28px;
      margin-bottom: 32px;
    }

    .section-head h2 {
      margin: 0;
      font-size: clamp(25px, 3vw, 36px);
      line-height: 1.24;
      color: var(--text);
      letter-spacing: 0;
    }

    .section-head p {
      margin: 0;
      color: var(--muted);
      max-width: 680px;
    }

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

    .tier-index {
      padding: 24px;
      border-radius: var(--radius);
      background: var(--primary);
      color: var(--light);
      box-shadow: var(--shadow);
    }

    .tier-index h3 {
      margin: 0 0 16px;
      font-size: 22px;
    }

    .tier-index p {
      margin: 0 0 18px;
      color: rgba(250, 247, 239, .78);
    }

    .metric-stack {
      display: grid;
      gap: 12px;
    }

    .metric-card {
      padding: 16px;
      display: grid;
      grid-template-columns: auto 1fr;
      gap: 12px;
      align-items: center;
    }

    .metric-number {
      width: 38px;
      height: 38px;
      display: grid;
      place-items: center;
      border-radius: 8px;
      background: var(--secondary-soft);
      color: var(--primary);
      font-weight: 900;
    }

    .metric-card b {
      display: block;
      color: var(--text);
    }

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

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

    .route-card {
      padding: 20px;
      transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
    }

    .route-card:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(166, 111, 63, .35);
    }

    .route-card h3 {
      margin: 0 0 8px;
      font-size: 19px;
      color: var(--primary);
    }

    .route-card p {
      margin: 0;
      color: var(--muted);
      font-size: 15px;
    }

    .demo-panel {
      display: grid;
      grid-template-columns: 310px 1fr;
      gap: 22px;
      align-items: start;
    }

    .tool-panel {
      padding: 22px;
    }

    .step-nav {
      display: grid;
      gap: 10px;
    }

    .step-item {
      display: flex;
      gap: 12px;
      align-items: flex-start;
      padding: 13px;
      border: 1px solid var(--border);
      border-radius: 8px;
      background: var(--bg-soft);
    }

    .step-item.is-active {
      background: rgba(36, 68, 58, .08);
      border-color: var(--border-strong);
    }

    .step-item em {
      width: 28px;
      height: 28px;
      flex: 0 0 auto;
      display: grid;
      place-items: center;
      border-radius: 999px;
      background: var(--primary);
      color: var(--light);
      font-style: normal;
      font-weight: 800;
      font-size: 13px;
    }

    .step-item b {
      display: block;
      font-size: 15px;
      margin-bottom: 3px;
    }

    .step-item span {
      display: block;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.45;
    }

    .segmented {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 16px;
    }

    .chip,
    .tag {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 999px;
      border: 1px solid var(--border);
      background: rgba(255, 253, 248, .82);
      color: #4C4A45;
      font-size: 13px;
      line-height: 1;
      padding: 8px 11px;
    }

    .chip.active {
      color: var(--light);
      background: var(--primary);
      border-color: var(--primary);
    }

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

    .result-card {
      min-height: 142px;
      padding: 16px;
      border-radius: 8px;
      background: var(--panel);
      border: 1px solid var(--border);
    }

    .result-card h3 {
      margin: 0 0 9px;
      color: var(--text);
      font-size: 17px;
    }

    .result-card p {
      margin: 0 0 12px;
      color: var(--muted);
      font-size: 14px;
    }

    .mini-status {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 10px;
      color: var(--primary);
      font-size: 13px;
      font-weight: 700;
    }

    .proof-band {
      background: #ECE7DD;
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
    }

    .proof-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 22px;
    }

    .timeline {
      display: grid;
      gap: 12px;
      padding: 22px;
      background: var(--panel);
      border-radius: var(--radius);
      border: 1px solid var(--border);
    }

    .time-row {
      display: grid;
      grid-template-columns: 96px 1fr;
      gap: 14px;
      padding: 14px 0;
      border-bottom: 1px solid var(--border);
    }

    .time-row:last-child {
      border-bottom: 0;
    }

    .time-row time {
      color: var(--secondary);
      font-weight: 800;
      font-size: 14px;
    }

    .time-row b {
      display: block;
      margin-bottom: 3px;
    }

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

    .proof-card {
      padding: 22px;
    }

    .compare-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-top: 14px;
    }

    .compare-box {
      padding: 16px;
      border-radius: 8px;
      border: 1px solid var(--border);
      background: var(--bg-soft);
    }

    .compare-box b {
      display: block;
      color: var(--primary);
      margin-bottom: 6px;
    }

    .compare-box 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;
      transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
    }

    .price-card:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(166, 111, 63, .36);
    }

    .price-card.featured {
      background: var(--primary);
      color: var(--light);
      border-color: rgba(255, 253, 248, .22);
    }

    .price-card h3 {
      margin: 0 0 8px;
      font-size: 21px;
    }

    .price-card .price {
      margin: 8px 0 14px;
      font-size: 28px;
      font-weight: 900;
      color: var(--primary);
    }

    .price-card.featured .price,
    .price-card.featured p,
    .price-card.featured li {
      color: rgba(250, 247, 239, .82);
    }

    .price-card p {
      margin: 0 0 16px;
      color: var(--muted);
      min-height: 54px;
    }

    .price-card ul {
      margin: 0 0 20px;
      padding: 0;
      list-style: none;
      display: grid;
      gap: 10px;
      flex: 1;
    }

    .price-card li {
      color: #514E47;
      font-size: 14px;
    }

    .price-card li::before {
      content: "✓";
      margin-right: 8px;
      color: var(--accent);
      font-weight: 900;
    }

    .news-layout {
      display: grid;
      grid-template-columns: 1.2fr .8fr;
      gap: 20px;
      align-items: start;
    }

    .news-list {
      padding: 10px 20px;
    }

    .news-row {
      display: grid;
      grid-template-columns: 120px 1fr auto;
      align-items: center;
      gap: 16px;
      min-height: 66px;
      border-bottom: 1px solid var(--border);
    }

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

    .news-row time {
      color: var(--secondary);
      font-weight: 800;
      font-size: 14px;
    }

    .news-row a {
      color: var(--text);
      font-weight: 700;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    .news-row a:hover {
      color: var(--primary);
    }

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

    .quote-card {
      padding: 24px;
    }

    .quote-card h3 {
      margin: 0 0 14px;
      color: var(--primary);
    }

    .quote-card blockquote {
      margin: 0;
      padding: 0;
      border: 0;
      color: var(--text);
      font-size: 18px;
      line-height: 1.7;
    }

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

    .accordion {
      background: transparent;
    }

    .faq-wrap {
      padding: 10px;
    }

    .accordion-item {
      border-bottom: 1px solid var(--border);
    }

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

    .accordion-title {
      padding: 18px 48px 18px 18px;
      color: var(--text);
      background: var(--panel);
      border: 0;
      font-weight: 800;
      font-size: 16px;
      line-height: 1.5;
    }

    .accordion-title:hover,
    .accordion-title:focus {
      background: rgba(36, 68, 58, .07);
      color: var(--primary);
    }

    .accordion-title::before {
      right: 18px;
      color: var(--primary);
      font-size: 22px;
      margin-top: -12px;
    }

    .accordion-content {
      border: 0;
      background: var(--bg-soft);
      color: var(--muted);
      padding: 0 18px 18px;
      font-size: 15px;
    }

    .final-cta {
      padding: 54px 0;
      background: linear-gradient(135deg, var(--primary), #2E3A34);
      color: var(--light);
    }

    .cta-inner {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 22px;
      align-items: center;
    }

    .cta-inner h2 {
      margin: 0 0 8px;
      font-size: clamp(24px, 3vw, 34px);
      color: var(--light);
    }

    .cta-inner p {
      margin: 0;
      color: rgba(250, 247, 239, .78);
      max-width: 720px;
    }

    .site-footer {
      padding: 46px 0 28px;
      background: #25231F;
      color: rgba(250, 247, 239, .78);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.15fr .7fr .7fr .9fr;
      gap: 28px;
      margin-bottom: 30px;
    }

    .footer-logo {
      display: flex;
      gap: 10px;
      align-items: center;
      color: #FFF7EA;
      font-weight: 900;
      margin-bottom: 12px;
    }

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

    .footer-col h3 {
      margin: 0 0 12px;
      color: #FFF7EA;
      font-size: 16px;
    }

    .footer-col p,
    .footer-col a {
      color: rgba(250, 247, 239, .68);
      font-size: 14px;
    }

    .footer-col a {
      display: block;
      margin: 8px 0;
    }

    .footer-col a:hover {
      color: #FFF7EA;
    }

    .copyright {
      display: flex;
      justify-content: space-between;
      gap: 18px;
      flex-wrap: wrap;
      padding-top: 22px;
      border-top: 1px solid rgba(250, 247, 239, .12);
      font-size: 13px;
      color: rgba(250, 247, 239, .55);
    }

    .floating-cta {
      position: fixed;
      right: 22px;
      bottom: 24px;
      z-index: 60;
      display: grid;
      gap: 8px;
    }

    .float-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-width: 126px;
      padding: 11px 14px;
      border-radius: 999px;
      background: var(--primary);
      color: var(--light);
      box-shadow: 0 14px 35px rgba(36, 68, 58, .26);
      font-weight: 800;
      font-size: 14px;
    }

    .float-btn.alt {
      background: var(--secondary-soft);
      color: #2B2118;
      border: 1px solid rgba(166, 111, 63, .25);
    }

    .float-btn:hover {
      color: var(--light);
      background: var(--primary-deep);
      transform: translateY(-2px);
    }

    .float-btn.alt:hover {
      color: #2B2118;
      background: #EAC89F;
    }

    .mobile-action {
      display: none;
      position: fixed;
      left: 0;
      right: 0;
      bottom: 0;
      z-index: 70;
      padding: 8px 12px calc(8px + env(safe-area-inset-bottom));
      background: rgba(248, 247, 243, .94);
      border-top: 1px solid var(--border);
      backdrop-filter: blur(12px);
      gap: 10px;
    }

    @media (max-width: 1024px) {
      .nav-inner {
        grid-template-columns: 1fr;
        gap: 8px;
        padding: 8px 0;
      }

      .nav-right {
        justify-content: space-between;
      }

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

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

      .stage {
        max-width: 760px;
        margin-left: auto;
        margin-right: auto;
      }

      .demo-panel,
      .tier-band,
      .proof-layout,
      .news-layout {
        grid-template-columns: 1fr;
      }

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

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

    @media (max-width: 768px) {
      body {
        padding-bottom: 66px;
      }

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

      .top-bar,
      .nav-inner {
        min-height: 52px;
      }

      .nav-left {
        justify-content: space-between;
        gap: 12px;
      }

      .brand-name {
        max-width: 230px;
        font-size: 14px;
      }

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

      .nav-links {
        display: none;
        width: 100%;
        padding: 10px 0 2px;
      }

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

      .nav-right {
        display: none;
      }

      .nav-right.is-open {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        padding-bottom: 10px;
      }

      .nav-search {
        max-width: none;
        width: 100%;
      }

      .hero {
        padding: 48px 0 62px;
      }

      .hero-side,
      .entry-grid,
      .result-grid,
      .price-grid,
      .compare-row {
        grid-template-columns: 1fr;
      }

      .section {
        padding: 58px 0;
      }

      .section-head {
        grid-template-columns: 1fr;
        gap: 12px;
        margin-bottom: 22px;
      }

      .news-row {
        grid-template-columns: 1fr;
        gap: 3px;
        padding: 13px 0;
      }

      .news-row a {
        white-space: normal;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
      }

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

      .floating-cta {
        display: none;
      }

      .mobile-action {
        display: grid;
        grid-template-columns: 1fr 1fr;
      }

      .mobile-action .btn {
        min-height: 46px;
        padding: 10px 12px;
        font-size: 14px;
      }
    }

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

      .hero-desc {
        font-size: 15px;
      }

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

      .stage-head,
      .copyright {
        align-items: flex-start;
        flex-direction: column;
      }

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

      .time-row {
        grid-template-columns: 1fr;
        gap: 4px;
      }
    }

/* roulang page: category1 */
:root{
      --bg:#F6F2EA;
      --bg-soft:#F8F7F3;
      --paper:#FFFDF8;
      --paper-2:#ECE7DD;
      --ink:#20231F;
      --muted:#6F6A61;
      --weak:#8B8377;
      --primary:#24443A;
      --primary-2:#2F4F46;
      --copper:#A66F3F;
      --copper-2:#C49A6C;
      --teal:#4FA3A5;
      --amber:#D89B43;
      --border:rgba(32,35,31,.12);
      --border-strong:rgba(36,68,58,.24);
      --shadow:0 18px 50px rgba(33,29,24,.08);
      --shadow-hover:0 22px 58px rgba(33,29,24,.13);
      --radius:10px;
      --radius-sm:8px;
      --container:1200px;
      --focus:0 0 0 4px rgba(79,163,165,.18);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      color:var(--ink);
      background:
        radial-gradient(circle at 20% 0%, rgba(196,154,108,.15), transparent 34%),
        linear-gradient(180deg,var(--bg) 0%,var(--bg-soft) 58%,#F2EDE4 100%);
      line-height:1.72;
      letter-spacing:0;
      padding-bottom:0;
    }
    a{color:inherit;text-decoration:none;transition:color .2s ease,background .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease}
    a:hover,a:focus{color:var(--primary)}
    button,input,select{font:inherit}
    button{cursor:pointer}
    input,select{outline:none}
    input:focus,select:focus,button:focus-visible,a:focus-visible{box-shadow:var(--focus);outline:none}
    .site-container{
      width:min(calc(100% - 40px),var(--container));
      margin:0 auto;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:80;
      background:rgba(248,247,243,.92);
      backdrop-filter:saturate(140%) blur(14px);
      border-bottom:1px solid var(--border);
    }
    .top-bar.custom-nav{
      min-height:56px;
      padding:0;
      background:transparent;
    }
    .nav-shell{
      width:min(calc(100% - 40px),var(--container));
      margin:0 auto;
      display:grid;
      grid-template-columns:auto 1fr auto;
      align-items:center;
      gap:18px;
      min-height:56px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:10px;
      min-width:0;
      font-weight:800;
      color:var(--ink);
      line-height:1.2;
      max-width:270px;
    }
    .brand-mark{
      width:32px;
      height:32px;
      border-radius:8px;
      display:inline-grid;
      place-items:center;
      flex:0 0 auto;
      color:#FFF8EA;
      background:linear-gradient(145deg,var(--primary),var(--copper));
      box-shadow:0 8px 20px rgba(36,68,58,.18);
      font-weight:900;
    }
    .brand-text{
      overflow:hidden;
      text-overflow:ellipsis;
      white-space:nowrap;
    }
    .nav-links{
      display:flex;
      align-items:center;
      gap:4px;
      min-width:0;
      overflow-x:auto;
      scrollbar-width:none;
    }
    .nav-links::-webkit-scrollbar{display:none}
    .nav-links a{
      flex:0 0 auto;
      padding:8px 10px;
      border-radius:999px;
      color:#47433D;
      font-size:14px;
      line-height:1;
      border:1px solid transparent;
    }
    .nav-links a:hover{
      background:rgba(36,68,58,.08);
      border-color:rgba(36,68,58,.12);
      color:var(--primary);
    }
    .nav-links a.active{
      color:#FFF8EA;
      background:var(--primary);
      border-color:var(--primary);
    }
    .nav-actions{
      display:flex;
      align-items:center;
      justify-content:flex-end;
      gap:10px;
      min-width:280px;
    }
    .nav-search{
      position:relative;
      width:190px;
    }
    .nav-search input{
      width:100%;
      height:36px;
      border:1px solid var(--border);
      background:rgba(255,253,248,.78);
      border-radius:999px;
      padding:0 14px 0 34px;
      color:var(--ink);
      font-size:14px;
    }
    .nav-search:before{
      content:"";
      position:absolute;
      left:13px;
      top:50%;
      width:12px;
      height:12px;
      border:2px solid var(--muted);
      border-radius:50%;
      transform:translateY(-50%);
      opacity:.72;
    }
    .nav-search:after{
      content:"";
      position:absolute;
      left:24px;
      top:21px;
      width:7px;
      height:2px;
      background:var(--muted);
      transform:rotate(45deg);
      opacity:.72;
    }
    .nav-cta{
      height:36px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      padding:0 14px;
      border-radius:999px;
      background:var(--copper);
      color:#FFF8EA;
      font-size:14px;
      font-weight:700;
      white-space:nowrap;
      box-shadow:0 10px 22px rgba(166,111,63,.18);
    }
    .nav-cta:hover{background:#8D5D34;color:#FFF8EA;transform:translateY(-1px)}
    .menu-toggle{
      display:none;
      width:38px;
      height:38px;
      border:1px solid var(--border);
      border-radius:999px;
      background:var(--paper);
      color:var(--primary);
      font-weight:800;
    }
    .button,.site-button{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:42px;
      padding:11px 18px;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:800;
      line-height:1.2;
      transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
      margin:0;
    }
    .button.primary,.site-button.primary{
      background:var(--primary);
      color:#FFF8EA;
      box-shadow:0 14px 28px rgba(36,68,58,.18);
    }
    .button.primary:hover,.site-button.primary:hover{background:#1D382F;color:#FFF8EA;transform:translateY(-2px);box-shadow:var(--shadow-hover)}
    .button.secondary,.site-button.secondary{
      background:transparent;
      color:var(--primary);
      border-color:var(--border-strong);
    }
    .button.secondary:hover,.site-button.secondary:hover{background:rgba(36,68,58,.08);color:var(--primary);transform:translateY(-2px)}
    .button.copper,.site-button.copper{
      background:var(--copper);
      color:#FFF8EA;
      box-shadow:0 14px 30px rgba(166,111,63,.18);
    }
    .button.copper:hover,.site-button.copper:hover{background:#8D5D34;color:#FFF8EA;transform:translateY(-2px)}
    .category-hero{
      padding:58px 0 38px;
      border-bottom:1px solid var(--border);
      background:
        linear-gradient(90deg,rgba(255,253,248,.8),rgba(236,231,221,.45)),
        radial-gradient(circle at 82% 30%,rgba(79,163,165,.18),transparent 32%);
    }
    .crumbs{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      align-items:center;
      color:var(--muted);
      font-size:14px;
      margin-bottom:20px;
    }
    .crumbs a{color:var(--primary);font-weight:700}
    .page-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:6px 10px;
      border-radius:999px;
      border:1px solid rgba(166,111,63,.22);
      background:rgba(255,253,248,.72);
      color:var(--copper);
      font-weight:800;
      font-size:13px;
      margin-bottom:16px;
    }
    .category-hero h1{
      margin:0 0 16px;
      font-size:clamp(31px,4.5vw,48px);
      line-height:1.16;
      letter-spacing:0;
      max-width:760px;
    }
    .category-hero p{
      margin:0;
      max-width:770px;
      color:var(--muted);
      font-size:17px;
    }
    .hero-panel{
      background:var(--paper);
      border:1px solid var(--border);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
      padding:20px;
      position:relative;
      overflow:hidden;
    }
    .hero-panel:before{
      content:"";
      position:absolute;
      inset:0 0 auto;
      height:4px;
      background:linear-gradient(90deg,var(--primary),var(--teal),var(--copper));
    }
    .main-coupon{
      border:1px solid rgba(36,68,58,.15);
      background:linear-gradient(135deg,#FFFDF8,#F0E7DA);
      border-radius:10px;
      padding:18px;
      margin-bottom:14px;
    }
    .coupon-label{font-size:13px;color:var(--weak);font-weight:700}
    .coupon-title{font-size:24px;font-weight:900;color:var(--primary);line-height:1.25;margin:6px 0}
    .coupon-note{font-size:14px;color:var(--muted);margin-bottom:14px}
    .mini-status{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:10px;
    }
    .mini-status span{
      display:block;
      border:1px solid var(--border);
      background:rgba(248,247,243,.74);
      border-radius:8px;
      padding:10px;
      color:var(--muted);
      font-size:13px;
    }
    .mini-status strong{display:block;color:var(--ink);font-size:15px}
    main{overflow:hidden}
    .section{
      padding:72px 0;
    }
    .section.alt{
      background:rgba(255,253,248,.52);
      border-top:1px solid var(--border);
      border-bottom:1px solid var(--border);
    }
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:24px;
      margin-bottom:26px;
    }
    .section-head h2{
      margin:0;
      font-size:clamp(24px,3vw,34px);
      line-height:1.24;
      letter-spacing:0;
    }
    .section-head p{
      margin:8px 0 0;
      color:var(--muted);
      max-width:620px;
    }
    .toolbar{
      display:grid;
      grid-template-columns:1.1fr auto auto;
      gap:12px;
      align-items:center;
      padding:14px;
      border:1px solid var(--border);
      background:rgba(255,253,248,.82);
      border-radius:10px;
      box-shadow:0 10px 28px rgba(33,29,24,.05);
      margin-bottom:24px;
    }
    .search-field{
      position:relative;
    }
    .search-field input{
      width:100%;
      height:44px;
      border:1px solid var(--border);
      background:#FFFDF8;
      border-radius:8px;
      padding:0 14px;
      color:var(--ink);
    }
    .select-field select{
      height:44px;
      min-width:150px;
      border:1px solid var(--border);
      background:#FFFDF8;
      border-radius:8px;
      padding:0 34px 0 12px;
      color:var(--ink);
      margin:0;
    }
    .chip-row{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-bottom:22px;
    }
    .chip{
      border:1px solid var(--border);
      background:var(--paper);
      color:var(--muted);
      border-radius:999px;
      padding:7px 12px;
      font-size:14px;
      font-weight:700;
    }
    .chip.active,.chip:hover{
      border-color:rgba(36,68,58,.35);
      background:rgba(36,68,58,.08);
      color:var(--primary);
    }
    .layout-grid{
      display:grid;
      grid-template-columns:280px 1fr;
      gap:26px;
      align-items:start;
    }
    .filter-panel{
      position:sticky;
      top:78px;
      border:1px solid var(--border);
      background:var(--paper);
      border-radius:10px;
      padding:18px;
      box-shadow:var(--shadow);
    }
    .filter-panel h3{
      margin:0 0 14px;
      font-size:18px;
    }
    .filter-group{
      padding:16px 0;
      border-top:1px solid var(--border);
    }
    .filter-group:first-of-type{border-top:0;padding-top:0}
    .filter-group strong{
      display:block;
      margin-bottom:10px;
      color:var(--ink);
    }
    .check-line{
      display:flex;
      align-items:flex-start;
      gap:10px;
      color:var(--muted);
      font-size:14px;
      margin:9px 0;
    }
    .check-line input{margin-top:5px;accent-color:var(--primary)}
    .callout.note-box{
      margin:0;
      border:1px solid rgba(166,111,63,.24);
      background:rgba(216,155,67,.08);
      border-radius:8px;
      color:#5E4931;
      padding:14px;
      font-size:14px;
    }
    .content-list{
      display:grid;
      gap:14px;
    }
    .entry-card{
      min-height:176px;
      display:grid;
      grid-template-columns:118px 1fr auto;
      gap:18px;
      align-items:center;
      border:1px solid var(--border);
      border-radius:10px;
      background:var(--paper);
      padding:16px;
      box-shadow:0 12px 34px rgba(33,29,24,.06);
      transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
    }
    .entry-card:hover{
      transform:translateY(-2px);
      box-shadow:var(--shadow-hover);
      border-color:rgba(166,111,63,.34);
    }
    .abstract-cover{
      height:118px;
      border-radius:8px;
      border:1px solid rgba(36,68,58,.15);
      background:
        linear-gradient(135deg,rgba(36,68,58,.9),rgba(79,163,165,.48)),
        repeating-linear-gradient(90deg,rgba(255,253,248,.18) 0 1px,transparent 1px 12px);
      position:relative;
      overflow:hidden;
    }
    .abstract-cover:before{
      content:"一区";
      position:absolute;
      left:12px;
      top:10px;
      color:#FFF8EA;
      font-weight:900;
      font-size:16px;
    }
    .abstract-cover:after{
      content:"";
      position:absolute;
      left:12px;
      right:12px;
      bottom:14px;
      height:34px;
      border-radius:6px;
      background:rgba(255,253,248,.22);
      border:1px solid rgba(255,253,248,.28);
    }
    .entry-content{min-width:0}
    .entry-content h2{
      margin:0 0 8px;
      font-size:20px;
      line-height:1.35;
      letter-spacing:0;
      display:-webkit-box;
      -webkit-line-clamp:2;
      -webkit-box-orient:vertical;
      overflow:hidden;
    }
    .entry-content p{
      margin:8px 0 0;
      color:var(--muted);
      display:-webkit-box;
      -webkit-line-clamp:3;
      -webkit-box-orient:vertical;
      overflow:hidden;
    }
    .tag-list{
      display:flex;
      flex-wrap:wrap;
      gap:7px;
      margin-bottom:8px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      padding:4px 8px;
      border-radius:999px;
      background:rgba(79,163,165,.1);
      color:#2D696A;
      font-size:12px;
      font-weight:800;
      line-height:1.2;
    }
    .tag.copper{background:rgba(166,111,63,.1);color:#81522D}
    .tag.green{background:rgba(36,68,58,.1);color:var(--primary)}
    .entry-meta{
      display:flex;
      flex-direction:column;
      align-items:flex-end;
      gap:12px;
      min-width:136px;
      color:var(--weak);
      font-size:13px;
    }
    .status-dot{
      display:inline-flex;
      align-items:center;
      gap:6px;
      color:var(--primary);
      font-weight:800;
    }
    .status-dot:before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--teal);
      box-shadow:0 0 0 4px rgba(79,163,165,.14);
    }
    .info-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:24px;
      align-items:stretch;
    }
    .info-card,.steps-card{
      border:1px solid var(--border);
      background:var(--paper);
      border-radius:10px;
      padding:24px;
      box-shadow:var(--shadow);
    }
    .info-card h2,.steps-card h2{
      margin:0 0 12px;
      font-size:26px;
      line-height:1.25;
    }
    .info-card p,.steps-card p{color:var(--muted);margin:0 0 16px}
    .feature-lines{
      display:grid;
      gap:12px;
      margin-top:18px;
    }
    .feature-line{
      display:grid;
      grid-template-columns:34px 1fr;
      gap:12px;
      align-items:start;
      padding:13px;
      border-radius:8px;
      background:rgba(248,247,243,.78);
      border:1px solid var(--border);
    }
    .feature-line i{
      width:34px;
      height:34px;
      display:grid;
      place-items:center;
      border-radius:8px;
      background:rgba(36,68,58,.1);
      color:var(--primary);
      font-style:normal;
      font-weight:900;
    }
    .feature-line strong{display:block;margin-bottom:2px}
    .feature-line span{display:block;color:var(--muted);font-size:14px}
    .step-list{
      counter-reset:step;
      display:grid;
      gap:12px;
      margin-top:18px;
    }
    .step-item{
      counter-increment:step;
      display:grid;
      grid-template-columns:42px 1fr;
      gap:12px;
      align-items:start;
      padding:14px;
      border:1px solid var(--border);
      border-radius:8px;
      background:linear-gradient(135deg,#FFFDF8,#F4EFE7);
    }
    .step-item:before{
      content:counter(step);
      width:42px;
      height:42px;
      border-radius:50%;
      display:grid;
      place-items:center;
      background:var(--primary);
      color:#FFF8EA;
      font-weight:900;
    }
    .step-item strong{display:block;margin-bottom:3px}
    .step-item span{display:block;color:var(--muted);font-size:14px}
    .faq-wrap{
      max-width:900px;
      margin:0 auto;
    }
    .accordion{
      background:transparent;
      border:0;
    }
    .accordion-item{
      margin-bottom:12px;
      border:1px solid var(--border);
      border-radius:10px;
      overflow:hidden;
      background:var(--paper);
      box-shadow:0 10px 28px rgba(33,29,24,.05);
    }
    .accordion-title{
      border:0;
      color:var(--ink);
      background:var(--paper);
      font-size:16px;
      font-weight:900;
      padding:18px 46px 18px 18px;
    }
    .accordion-title:hover,.accordion-title:focus{
      background:rgba(36,68,58,.06);
      color:var(--primary);
    }
    .accordion-title:before{
      right:18px;
      font-size:22px;
      margin-top:-12px;
      color:var(--copper);
    }
    .accordion-content{
      border:0;
      border-top:1px solid var(--border);
      background:#FFFDF8;
      color:var(--muted);
      padding:18px;
    }
    .cta-band{
      background:linear-gradient(135deg,var(--primary),#1E2D28);
      color:#FFF8EA;
      padding:38px;
      border-radius:10px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
      box-shadow:0 22px 60px rgba(36,68,58,.22);
    }
    .cta-band h2{
      margin:0 0 8px;
      font-size:28px;
      color:#FFF8EA;
      line-height:1.25;
    }
    .cta-band p{
      margin:0;
      color:rgba(255,248,234,.78);
      max-width:680px;
    }
    .site-footer{
      background:#24251F;
      color:#EDE5D8;
      padding:54px 0 24px;
      margin-top:0;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.35fr .7fr .85fr 1fr;
      gap:28px;
      margin-bottom:32px;
    }
    .footer-logo{
      display:flex;
      align-items:center;
      gap:10px;
      font-weight:900;
      color:#FFF8EA;
      margin-bottom:12px;
      line-height:1.25;
    }
    .footer-col h3{
      font-size:16px;
      margin:0 0 12px;
      color:#FFF8EA;
    }
    .footer-col p{
      margin:0;
      color:rgba(237,229,216,.72);
      font-size:14px;
    }
    .footer-col a{
      display:block;
      width:max-content;
      max-width:100%;
      color:rgba(237,229,216,.72);
      margin:7px 0;
      font-size:14px;
    }
    .footer-col a:hover{color:#FFF8EA}
    .copyright{
      border-top:1px solid rgba(237,229,216,.15);
      padding-top:18px;
      display:flex;
      justify-content:space-between;
      gap:16px;
      color:rgba(237,229,216,.62);
      font-size:13px;
    }
    .floating-cta{
      position:fixed;
      right:18px;
      bottom:24px;
      z-index:70;
      display:flex;
      flex-direction:column;
      gap:10px;
    }
    .floating-cta a{
      width:54px;
      min-height:54px;
      border-radius:999px;
      display:grid;
      place-items:center;
      padding:9px;
      text-align:center;
      background:var(--primary);
      color:#FFF8EA;
      font-weight:900;
      font-size:12px;
      line-height:1.2;
      box-shadow:0 16px 34px rgba(36,68,58,.25);
    }
    .floating-cta a.secondary{
      background:var(--paper);
      color:var(--primary);
      border:1px solid var(--border-strong);
    }
    .floating-cta a:hover{transform:translateY(-2px)}
    .mobile-action-bar{
      display:none;
      position:fixed;
      left:0;
      right:0;
      bottom:0;
      z-index:90;
      padding:8px 14px calc(8px + env(safe-area-inset-bottom));
      background:rgba(248,247,243,.94);
      backdrop-filter:blur(14px);
      border-top:1px solid var(--border);
      gap:10px;
    }
    .mobile-action-bar a{
      flex:1;
      min-height:44px;
      border-radius:999px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      font-weight:900;
      font-size:14px;
    }
    .mobile-action-bar .primary{background:var(--primary);color:#FFF8EA}
    .mobile-action-bar .secondary{border:1px solid var(--border-strong);color:var(--primary);background:var(--paper)}
    @media (max-width:1024px){
      .nav-shell{grid-template-columns:auto 1fr auto;gap:12px}
      .nav-actions{min-width:0}
      .nav-search{display:none}
      .layout-grid{grid-template-columns:1fr}
      .filter-panel{position:static}
      .footer-grid{grid-template-columns:1fr 1fr}
      .entry-card{grid-template-columns:104px 1fr}
      .entry-meta{grid-column:1/-1;flex-direction:row;align-items:center;justify-content:space-between}
      .info-grid{grid-template-columns:1fr}
    }
    @media (max-width:768px){
      body{padding-bottom:66px}
      .site-container,.nav-shell{width:min(calc(100% - 28px),var(--container))}
      .top-bar.custom-nav,.nav-shell{min-height:52px}
      .brand{max-width:210px}
      .brand-mark{width:30px;height:30px}
      .nav-links{
        position:absolute;
        left:14px;
        right:14px;
        top:58px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        padding:10px;
        border:1px solid var(--border);
        border-radius:10px;
        background:var(--paper);
        box-shadow:var(--shadow);
        overflow:visible;
      }
      .nav-links.is-open{display:flex}
      .nav-links a{border-radius:8px;padding:12px 14px}
      .menu-toggle{display:inline-grid;place-items:center}
      .nav-cta{display:none}
      .category-hero{padding:42px 0 28px}
      .hero-panel{margin-top:24px}
      .section{padding:54px 0}
      .section-head{display:block}
      .toolbar{grid-template-columns:1fr}
      .select-field select{width:100%}
      .chip-row{flex-wrap:nowrap;overflow-x:auto;padding-bottom:4px}
      .chip{flex:0 0 auto}
      .entry-card{grid-template-columns:1fr;min-height:0}
      .abstract-cover{height:112px}
      .entry-meta{display:grid;grid-template-columns:1fr;align-items:stretch}
      .entry-meta .site-button{width:100%}
      .cta-band{display:block;padding:26px}
      .cta-band .site-button{margin-top:18px;width:100%}
      .floating-cta{display:none}
      .mobile-action-bar{display:flex}
      .copyright{display:block}
      .copyright span{display:block;margin:5px 0}
    }
    @media (max-width:520px){
      .brand-text{max-width:158px}
      .category-hero h1{font-size:31px}
      .mini-status{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
      .info-card,.steps-card{padding:20px}
      .feature-line,.step-item{grid-template-columns:1fr}
      .section-head h2{font-size:24px}
    }

/* roulang page: category2 */
:root {
      --bg: #F6F2EA;
      --bg-soft: #F8F7F3;
      --panel: #FFFDF8;
      --panel-warm: #ECE7DD;
      --text: #20231F;
      --muted: #66645D;
      --weak: #8A847A;
      --primary: #24443A;
      --primary-deep: #1A332B;
      --secondary: #A66F3F;
      --secondary-soft: #E7D3BC;
      --accent: #4FA3A5;
      --amber: #D89B43;
      --border: rgba(32, 35, 31, .12);
      --border-strong: rgba(36, 68, 58, .24);
      --shadow: 0 18px 45px rgba(33, 29, 24, .08);
      --shadow-soft: 0 10px 28px rgba(33, 29, 24, .06);
      --radius: 10px;
      --radius-sm: 8px;
      --container: 1200px;
      --ease: all .22s ease;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at 12% 6%, rgba(196, 154, 108, .12), transparent 28%),
        linear-gradient(180deg, var(--bg) 0%, var(--bg-soft) 42%, #F2EEE6 100%);
      font-size: 16px;
      line-height: 1.72;
      letter-spacing: 0;
      min-height: 100vh;
      padding-bottom: 0;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: var(--ease);
    }

    a:hover,
    a:focus {
      color: var(--primary);
    }

    button,
    input {
      font: inherit;
    }

    button {
      cursor: pointer;
    }

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

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(248, 247, 243, .92);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border);
    }

    .top-bar {
      min-height: 56px;
      padding: 0;
      background: transparent;
    }

    .nav-shell {
      display: grid;
      grid-template-columns: minmax(220px, 1fr) auto minmax(260px, .85fr);
      align-items: center;
      gap: 18px;
      min-height: 56px;
      width: 100%;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      min-width: 0;
      color: var(--text);
      font-weight: 800;
      line-height: 1.2;
    }

    .brand-mark {
      width: 32px;
      height: 32px;
      border-radius: 8px;
      display: inline-grid;
      place-items: center;
      flex: 0 0 auto;
      color: #FFF9EF;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      box-shadow: 0 8px 18px rgba(36, 68, 58, .18);
      font-weight: 800;
    }

    .brand span:last-child {
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 4px;
      white-space: nowrap;
    }

    .nav-links a {
      padding: 7px 10px;
      border-radius: 999px;
      font-size: 14px;
      color: var(--muted);
      line-height: 1.2;
    }

    .nav-links a:hover,
    .nav-links a:focus {
      background: rgba(36, 68, 58, .08);
      color: var(--primary);
    }

    .nav-links a.active {
      background: var(--primary);
      color: #FFF9EF;
      box-shadow: 0 8px 20px rgba(36, 68, 58, .16);
    }

    .nav-actions {
      display: flex;
      align-items: center;
      justify-content: flex-end;
      gap: 10px;
      min-width: 0;
    }

    .nav-search {
      position: relative;
      width: min(230px, 100%);
    }

    .nav-search input,
    .tool-search input {
      width: 100%;
      height: 38px;
      border: 1px solid var(--border);
      border-radius: 999px;
      background: rgba(255, 253, 248, .78);
      color: var(--text);
      padding: 0 14px;
      outline: none;
      transition: var(--ease);
      box-shadow: inset 0 1px 0 rgba(255, 255, 255, .65);
    }

    .nav-search input:focus,
    .tool-search input:focus,
    .filter-select:focus {
      border-color: var(--primary);
      background: #fff;
      box-shadow: 0 0 0 4px rgba(79, 163, 165, .15);
    }

    .nav-cta,
    .button.primary-btn,
    .primary-btn {
      border-radius: 999px;
      background: var(--primary);
      color: #FFF9EF;
      border: 1px solid transparent;
      font-weight: 700;
      padding: 10px 18px;
      box-shadow: 0 12px 26px rgba(36, 68, 58, .16);
      line-height: 1.1;
    }

    .nav-cta:hover,
    .button.primary-btn:hover,
    .primary-btn:hover {
      background: var(--primary-deep);
      color: #fff;
      transform: translateY(-1px);
      box-shadow: 0 16px 30px rgba(36, 68, 58, .22);
    }

    .ghost-btn,
    .button.ghost-btn {
      border-radius: 999px;
      background: transparent;
      border: 1px solid var(--border-strong);
      color: var(--primary);
      font-weight: 700;
      padding: 10px 18px;
      line-height: 1.1;
    }

    .ghost-btn:hover,
    .button.ghost-btn:hover {
      background: rgba(36, 68, 58, .08);
      color: var(--primary-deep);
      border-color: var(--primary);
      transform: translateY(-1px);
    }

    .menu-toggle {
      display: none;
      width: 38px;
      height: 38px;
      border: 1px solid var(--border);
      border-radius: 999px;
      background: var(--panel);
      color: var(--primary);
      align-items: center;
      justify-content: center;
      font-weight: 800;
    }

    .category-head {
      padding: 70px 0 44px;
      border-bottom: 1px solid var(--border);
      background:
        linear-gradient(90deg, rgba(36, 68, 58, .08) 0%, transparent 45%),
        linear-gradient(180deg, rgba(255, 253, 248, .78), rgba(236, 231, 221, .28));
    }

    .category-hero-grid {
      align-items: stretch;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--primary);
      font-size: 13px;
      font-weight: 800;
      padding: 6px 10px;
      border: 1px solid rgba(36, 68, 58, .16);
      border-radius: 999px;
      background: rgba(255, 253, 248, .72);
      margin-bottom: 18px;
    }

    .eyebrow::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 99px;
      background: var(--accent);
      box-shadow: 0 0 0 4px rgba(79, 163, 165, .14);
    }

    h1 {
      margin: 0 0 16px;
      font-size: clamp(31px, 4.8vw, 52px);
      line-height: 1.14;
      letter-spacing: 0;
      color: var(--text);
      max-width: 760px;
    }

    .lead {
      max-width: 720px;
      color: var(--muted);
      font-size: 17px;
      margin: 0 0 24px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 12px;
      margin-bottom: 22px;
    }

    .notice-row {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .notice-pill,
    .tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      min-height: 28px;
      padding: 5px 10px;
      border-radius: 999px;
      background: rgba(255, 253, 248, .8);
      border: 1px solid var(--border);
      color: var(--muted);
      font-size: 13px;
      line-height: 1.25;
    }

    .visual-panel {
      position: relative;
      min-height: 360px;
      background: #201F1C;
      border-radius: var(--radius);
      padding: 18px;
      overflow: hidden;
      box-shadow: var(--shadow);
      border: 1px solid rgba(32, 35, 31, .14);
    }

    .visual-panel::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        linear-gradient(160deg, rgba(79, 163, 165, .22), transparent 34%),
        radial-gradient(circle at 82% 18%, rgba(216, 155, 67, .20), transparent 28%);
      pointer-events: none;
    }

    .vertical-screen {
      position: relative;
      margin-left: auto;
      width: min(260px, 82%);
      min-height: 328px;
      border-radius: 22px;
      border: 1px solid rgba(255, 249, 239, .16);
      background: linear-gradient(180deg, #30312C, #171A16);
      padding: 14px;
      color: #FFF9EF;
      box-shadow: 0 22px 48px rgba(0, 0, 0, .24);
    }

    .screen-top {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 10px;
      margin-bottom: 14px;
      color: rgba(255, 249, 239, .74);
      font-size: 12px;
    }

    .signal {
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .signal i {
      display: block;
      width: 5px;
      border-radius: 9px;
      background: var(--accent);
    }

    .signal i:nth-child(1) {
      height: 7px;
    }

    .signal i:nth-child(2) {
      height: 11px;
    }

    .signal i:nth-child(3) {
      height: 15px;
    }

    .screen-card {
      padding: 13px;
      border-radius: 10px;
      background: rgba(255, 249, 239, .08);
      border: 1px solid rgba(255, 249, 239, .12);
      margin-bottom: 10px;
    }

    .screen-card strong {
      display: block;
      font-size: 15px;
      margin-bottom: 6px;
    }

    .screen-card span {
      display: block;
      color: rgba(255, 249, 239, .72);
      font-size: 12px;
      line-height: 1.55;
    }

    .status-line {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 8px;
      padding: 10px 0;
      border-top: 1px solid rgba(255, 249, 239, .12);
      color: rgba(255, 249, 239, .78);
      font-size: 12px;
    }

    .status-dot {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .status-dot::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 999px;
      background: #70C8A8;
    }

    main {
      overflow: hidden;
    }

    .section {
      padding: 82px 0;
    }

    .section.compact {
      padding: 56px 0;
    }

    .section-title {
      margin-bottom: 28px;
    }

    .section-title h2 {
      margin: 0 0 10px;
      font-size: clamp(24px, 3.2vw, 34px);
      line-height: 1.24;
      letter-spacing: 0;
      color: var(--text);
    }

    .section-title p {
      margin: 0;
      color: var(--muted);
      max-width: 720px;
    }

    .toolbar-band {
      margin-top: -28px;
      position: relative;
      z-index: 2;
    }

    .filter-toolbar {
      background: var(--panel);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      box-shadow: var(--shadow-soft);
      padding: 16px;
      display: grid;
      grid-template-columns: minmax(220px, 1fr) auto auto;
      gap: 14px;
      align-items: center;
    }

    .tool-search input {
      height: 44px;
      border-radius: var(--radius-sm);
    }

    .chip-row {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .chip {
      appearance: none;
      min-height: 34px;
      border: 1px solid var(--border);
      background: #FBF8F0;
      color: var(--muted);
      border-radius: 999px;
      padding: 7px 12px;
      font-weight: 700;
      font-size: 13px;
      transition: var(--ease);
    }

    .chip:hover,
    .chip:focus,
    .chip.active {
      border-color: var(--primary);
      background: rgba(36, 68, 58, .08);
      color: var(--primary);
      outline: none;
    }

    .filter-select {
      height: 44px;
      min-width: 145px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border);
      background-color: #FBF8F0;
      color: var(--text);
      margin: 0;
      outline: none;
      transition: var(--ease);
      padding-left: 12px;
    }

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

    .entry-card {
      min-height: 246px;
      background: var(--panel);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      box-shadow: var(--shadow-soft);
      overflow: hidden;
      transition: var(--ease);
      display: grid;
      grid-template-columns: 142px minmax(0, 1fr);
    }

    .entry-card:hover {
      transform: translateY(-2px);
      border-color: rgba(166, 111, 63, .36);
      box-shadow: var(--shadow);
    }

    .abstract-cover {
      position: relative;
      min-height: 100%;
      background:
        linear-gradient(135deg, rgba(36, 68, 58, .96), rgba(79, 163, 165, .62)),
        repeating-linear-gradient(0deg, rgba(255, 255, 255, .08) 0 1px, transparent 1px 11px);
      overflow: hidden;
    }

    .abstract-cover::before,
    .abstract-cover::after {
      content: "";
      position: absolute;
      left: 18px;
      right: 18px;
      height: 9px;
      border-radius: 999px;
      background: rgba(255, 249, 239, .42);
    }

    .abstract-cover::before {
      top: 28px;
      width: 66%;
    }

    .abstract-cover::after {
      top: 50px;
      width: 45%;
    }

    .cover-stack {
      position: absolute;
      inset: auto 18px 18px;
      display: grid;
      gap: 8px;
    }

    .cover-stack i {
      display: block;
      height: 34px;
      border-radius: 8px;
      border: 1px solid rgba(255, 249, 239, .16);
      background: rgba(255, 249, 239, .12);
    }

    .entry-body {
      padding: 18px;
      display: flex;
      flex-direction: column;
      min-width: 0;
    }

    .entry-body h3 {
      margin: 0 0 10px;
      font-size: 18px;
      line-height: 1.36;
      letter-spacing: 0;
      color: var(--text);
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .entry-body p {
      margin: 0 0 14px;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.65;
      display: -webkit-box;
      -webkit-line-clamp: 3;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .card-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 7px;
      margin-bottom: 12px;
    }

    .tag.is-accent {
      background: rgba(79, 163, 165, .10);
      color: #2E6E6F;
      border-color: rgba(79, 163, 165, .22);
    }

    .tag.is-warm {
      background: rgba(216, 155, 67, .12);
      color: #8A5F25;
      border-color: rgba(216, 155, 67, .28);
    }

    .entry-meta {
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 8px;
      margin-top: auto;
      padding-top: 14px;
      border-top: 1px solid var(--border);
      color: var(--weak);
      font-size: 13px;
    }

    .mini-link {
      color: var(--primary);
      font-weight: 800;
    }

    .mini-link:hover {
      color: var(--secondary);
    }

    .info-band {
      background: rgba(255, 253, 248, .62);
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
    }

    .guide-panel {
      background: var(--panel);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      box-shadow: var(--shadow-soft);
      padding: 24px;
      height: 100%;
    }

    .guide-panel h3 {
      margin: 0 0 14px;
      font-size: 21px;
      letter-spacing: 0;
    }

    .check-list {
      margin: 0;
      list-style: none;
    }

    .check-list li {
      position: relative;
      padding: 13px 0 13px 30px;
      border-bottom: 1px solid var(--border);
      color: var(--muted);
    }

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

    .check-list li::before {
      content: "";
      position: absolute;
      left: 0;
      top: 19px;
      width: 14px;
      height: 14px;
      border-radius: 4px;
      background: var(--primary);
      box-shadow: inset 0 0 0 4px rgba(255, 249, 239, .82);
    }

    .route-table {
      width: 100%;
      border-collapse: separate;
      border-spacing: 0;
      overflow: hidden;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      background: var(--panel);
      box-shadow: var(--shadow-soft);
    }

    .route-table th,
    .route-table td {
      padding: 14px 16px;
      text-align: left;
      border-bottom: 1px solid var(--border);
      color: var(--muted);
      vertical-align: top;
    }

    .route-table th {
      background: #F0E9DD;
      color: var(--text);
      font-weight: 800;
    }

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

    .callout.custom-callout {
      margin: 0;
      border: 1px solid rgba(166, 111, 63, .26);
      border-radius: var(--radius);
      background: rgba(216, 155, 67, .10);
      color: var(--text);
      box-shadow: none;
    }

    .accordion {
      background: transparent;
    }

    .accordion-item {
      margin-bottom: 10px;
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      background: var(--panel);
      overflow: hidden;
      box-shadow: var(--shadow-soft);
    }

    .accordion-title {
      border: 0;
      color: var(--text);
      font-weight: 800;
      font-size: 16px;
      padding: 17px 48px 17px 18px;
      background: var(--panel);
    }

    .accordion-title:hover,
    .accordion-title:focus {
      background: #F1EBDD;
      color: var(--primary);
    }

    .accordion-title::before {
      right: 18px;
      font-size: 22px;
      color: var(--primary);
      margin-top: -12px;
    }

    .accordion-content {
      border: 0;
      border-top: 1px solid var(--border);
      background: #FFFDF8;
      color: var(--muted);
      padding: 17px 18px 20px;
    }

    .cta-band {
      padding: 58px 0;
      background:
        linear-gradient(135deg, var(--primary), #2B2A27);
      color: #FFF9EF;
    }

    .cta-inner {
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      align-items: center;
      gap: 24px;
    }

    .cta-inner h2 {
      margin: 0 0 8px;
      font-size: clamp(24px, 3vw, 34px);
      letter-spacing: 0;
      color: #FFF9EF;
    }

    .cta-inner p {
      margin: 0;
      color: rgba(255, 249, 239, .76);
      max-width: 760px;
    }

    .cta-inner .button {
      margin: 0;
      background: var(--secondary);
      color: #FFF9EF;
      border-radius: 999px;
      font-weight: 800;
      border: 1px solid rgba(255, 249, 239, .2);
      padding: 13px 20px;
    }

    .cta-inner .button:hover {
      background: #8E5C31;
      color: #fff;
      transform: translateY(-1px);
    }

    .floating-cta {
      position: fixed;
      right: 22px;
      bottom: 22px;
      z-index: 40;
      display: grid;
      gap: 8px;
    }

    .floating-cta a {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-width: 132px;
      min-height: 42px;
      border-radius: 999px;
      padding: 10px 16px;
      font-weight: 800;
      box-shadow: 0 14px 30px rgba(32, 35, 31, .16);
      border: 1px solid rgba(255, 249, 239, .18);
    }

    .floating-cta .main {
      background: var(--primary);
      color: #FFF9EF;
    }

    .floating-cta .sub {
      background: var(--panel);
      color: var(--primary);
      border-color: var(--border);
    }

    .floating-cta a:hover {
      transform: translateY(-2px);
    }

    .mobile-action {
      display: none;
      position: fixed;
      z-index: 45;
      left: 0;
      right: 0;
      bottom: 0;
      min-height: 60px;
      padding: 8px 14px calc(8px + env(safe-area-inset-bottom));
      background: rgba(248, 247, 243, .94);
      backdrop-filter: blur(14px);
      border-top: 1px solid var(--border);
      gap: 10px;
    }

    .mobile-action a {
      flex: 1;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 44px;
      border-radius: 999px;
      font-weight: 800;
    }

    .mobile-action a:first-child {
      background: var(--primary);
      color: #FFF9EF;
    }

    .mobile-action a:last-child {
      border: 1px solid var(--border-strong);
      color: var(--primary);
      background: var(--panel);
    }

    .site-footer {
      background: #242720;
      color: rgba(255, 249, 239, .78);
      padding: 54px 0 28px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.45fr .8fr .9fr 1.05fr;
      gap: 30px;
      margin-bottom: 30px;
    }

    .footer-logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: #FFF9EF;
      font-weight: 800;
      margin-bottom: 12px;
    }

    .footer-col h3 {
      margin: 0 0 12px;
      color: #FFF9EF;
      font-size: 16px;
      letter-spacing: 0;
    }

    .footer-col p {
      margin: 0;
      color: rgba(255, 249, 239, .68);
      font-size: 14px;
    }

    .footer-col a {
      display: block;
      color: rgba(255, 249, 239, .68);
      font-size: 14px;
      margin: 8px 0;
    }

    .footer-col a:hover {
      color: #FFF9EF;
      transform: translateX(2px);
    }

    .copyright {
      display: flex;
      justify-content: space-between;
      gap: 14px;
      border-top: 1px solid rgba(255, 249, 239, .12);
      padding-top: 20px;
      color: rgba(255, 249, 239, .55);
      font-size: 13px;
      flex-wrap: wrap;
    }

    @media screen and (max-width: 1100px) {
      .nav-shell {
        grid-template-columns: 1fr auto;
      }

      .nav-links {
        grid-column: 1 / -1;
        order: 3;
        width: 100%;
        overflow-x: auto;
        padding-bottom: 8px;
        scrollbar-width: thin;
      }

      .nav-actions {
        justify-content: flex-end;
      }

      .site-header .top-bar {
        min-height: auto;
        padding: 8px 0 0;
      }
    }

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

      .category-head {
        padding: 44px 0 36px;
      }

      .visual-panel {
        margin-top: 26px;
        min-height: 330px;
      }

      .filter-toolbar {
        grid-template-columns: 1fr;
      }

      .chip-row {
        flex-wrap: nowrap;
        overflow-x: auto;
        padding-bottom: 4px;
      }

      .chip {
        flex: 0 0 auto;
      }

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

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

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

    @media screen and (max-width: 640px) {
      body {
        font-size: 15px;
        padding-bottom: 68px;
      }

      .site-header .top-bar {
        min-height: 52px;
        padding-top: 7px;
      }

      .nav-shell {
        gap: 8px;
      }

      .brand span:last-child {
        max-width: 210px;
      }

      .nav-actions {
        display: none;
      }

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

      .nav-links {
        display: none;
        padding: 8px 0 10px;
        flex-direction: column;
        align-items: stretch;
        overflow: visible;
      }

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

      .nav-links a {
        border-radius: var(--radius-sm);
        padding: 11px 12px;
        background: rgba(255, 253, 248, .56);
      }

      .category-head {
        padding: 34px 0 30px;
      }

      .lead {
        font-size: 15px;
      }

      .hero-actions .button {
        width: 100%;
        margin: 0;
      }

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

      .vertical-screen {
        width: 100%;
        min-height: 302px;
      }

      .section {
        padding: 56px 0;
      }

      .section.compact {
        padding: 42px 0;
      }

      .toolbar-band {
        margin-top: 0;
        padding-top: 18px;
      }

      .entry-card {
        grid-template-columns: 1fr;
        min-height: auto;
      }

      .abstract-cover {
        min-height: 128px;
      }

      .entry-meta {
        display: grid;
      }

      .route-table {
        display: block;
        overflow-x: auto;
      }

      .route-table th,
      .route-table td {
        min-width: 130px;
        white-space: nowrap;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
      }

      .floating-cta {
        display: none;
      }

      .mobile-action {
        display: flex;
      }

      .copyright {
        display: grid;
      }
    }