/* roulang page: index */
:root {
      --brand: #1F4A3A;
      --brand-dark: #143328;
      --brand-light: #2D7A4F;
      --accent: #D9A441;
      --accent-light: #F5E7C8;
      --accent-dark: #C08A2E;
      --cream: #FAF7F2;
      --sand: #F0EBE2;
      --white: #FFFFFF;
      --ink: #1C2321;
      --body: #2E3A36;
      --muted: #66736D;
      --faint: #98A19D;
      --line: #E5DFD5;
      --success: #2D7A4F;
      --warning: #C2752D;
      --danger: #C0392B;
      --info: #4A6572;
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-sm: 8px;
      --shadow-sm: 0 1px 3px rgba(31,74,58,0.06);
      --shadow-md: 0 8px 30px rgba(31,74,58,0.08);
      --shadow-lg: 0 20px 45px rgba(31,74,58,0.12);
      --transition: 200ms ease;
      --container-max: 1280px;
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
      font-family: 'Noto Sans SC', 'Microsoft YaHei', system-ui, sans-serif;
      background: var(--cream);
      color: var(--body);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }
    h1, h2, h3, h4, h5 { font-family: 'Noto Serif SC', 'Songti SC', serif; color: var(--ink); line-height: 1.35; }
    a { text-decoration: none; color: inherit; transition: color var(--transition), border-color var(--transition), background var(--transition), box-shadow var(--transition); }
    img { max-width: 100%; display: block; }
    button { font-family: inherit; cursor: pointer; border: none; background: none; }
    input { font-family: inherit; }

    .container-x {
      max-width: var(--container-max);
      margin: 0 auto;
      padding-left: 1rem;
      padding-right: 1rem;
    }
    @media (min-width: 768px) {
      .container-x { padding-left: 1.5rem; padding-right: 1.5rem; }
    }
    @media (min-width: 1024px) {
      .container-x { padding-left: 2rem; padding-right: 2rem; }
    }

    /* ===== Header ===== */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      height: 72px;
      background: rgba(250, 247, 242, 0.92);
      -webkit-backdrop-filter: blur(12px);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--line);
      z-index: 100;
    }
    .site-header .header-inner {
      height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1.5rem;
    }
    .logo-text {
      font-family: 'Noto Serif SC', serif;
      font-weight: 700;
      font-size: 1.35rem;
      color: var(--brand);
      letter-spacing: 0.02em;
      display: flex;
      align-items: center;
      gap: 0.35rem;
      white-space: nowrap;
    }
    .logo-text .logo-z6 {
      background: var(--accent);
      color: #fff;
      font-family: 'Noto Sans SC', sans-serif;
      font-size: 0.72rem;
      font-weight: 700;
      padding: 0.14rem 0.42rem;
      border-radius: 6px;
      letter-spacing: 0;
    }
    .main-nav {
      display: flex;
      align-items: center;
      gap: 2rem;
    }
    .nav-link {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--body);
      padding: 0.3rem 0;
      position: relative;
      white-space: nowrap;
    }
    .nav-link::after {
      content: '';
      position: absolute;
      left: 0;
      bottom: -2px;
      width: 0;
      height: 2px;
      background: var(--accent);
      transition: width var(--transition);
    }
    .nav-link:hover { color: var(--brand); }
    .nav-link:hover::after { width: 100%; }
    .nav-link.active { color: var(--brand); font-weight: 600; }
    .nav-link.active::after { width: 100%; background: var(--brand); }

    .command-search {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      background: var(--sand);
      border: 1px solid transparent;
      border-radius: 999px;
      padding: 0.42rem 0.8rem;
      width: 240px;
      color: var(--faint);
      font-size: 0.85rem;
      transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
    }
    .command-search:hover { border-color: var(--accent); background: #fff; }
    .command-search .kbd {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 4px;
      padding: 0.05rem 0.35rem;
      font-size: 0.72rem;
      color: var(--muted);
      margin-left: auto;
      font-family: ui-monospace, monospace;
    }
    .command-search svg { flex-shrink: 0; }

    @media (max-width: 1024px) {
      .main-nav { display: none; }
      .command-search { display: none; }
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      flex-shrink: 0;
    }
    .login-link {
      font-size: 0.9rem;
      color: var(--body);
      font-weight: 500;
      padding: 0.35rem 0.5rem;
      white-space: nowrap;
    }
    .login-link:hover { color: var(--brand); }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      font-size: 0.95rem;
      font-weight: 500;
      border-radius: 999px;
      padding: 0.6rem 1.5rem;
      transition: all var(--transition);
      border: 1px solid transparent;
      white-space: nowrap;
    }
    .btn-accent {
      background: var(--accent);
      color: #fff;
      box-shadow: 0 2px 10px rgba(217, 164, 65, 0.3);
    }
    .btn-accent:hover {
      background: #E2B456;
      box-shadow: 0 4px 18px rgba(217, 164, 65, 0.4);
      transform: translateY(-1px);
      color: #fff;
    }
    .btn-accent:active { transform: translateY(0); box-shadow: 0 1px 5px rgba(217,164,65,0.3); }
    .btn-accent:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
    .btn-dark {
      background: var(--brand);
      color: #fff;
    }
    .btn-dark:hover { background: #2A5E4A; transform: translateY(-1px); color: #fff; }
    .btn-outline {
      background: transparent;
      border-color: var(--line);
      color: var(--body);
    }
    .btn-outline:hover { border-color: var(--brand); color: var(--brand); background: rgba(31,74,58,0.04); }
    .btn-sm { padding: 0.42rem 1rem; font-size: 0.88rem; }

    .hamburger {
      display: none;
      width: 40px;
      height: 40px;
      align-items: center;
      justify-content: center;
      background: var(--sand);
      border-radius: 10px;
      color: var(--brand);
      flex-shrink: 0;
    }
    .hamburger:hover { background: #e5ddd0; }
    @media (max-width: 1024px) {
      .hamburger { display: inline-flex; }
    }

    /* ===== Mobile Drawer ===== */
    .mobile-drawer {
      position: fixed;
      top: 0;
      right: 0;
      bottom: 0;
      width: 300px;
      max-width: 85vw;
      background: #fff;
      z-index: 200;
      transform: translateX(105%);
      transition: transform 300ms ease;
      padding: 2rem 1.5rem;
      display: flex;
      flex-direction: column;
      box-shadow: -20px 0 50px rgba(31,74,58,0.15);
      border-left: 1px solid var(--line);
    }
    .mobile-drawer.open { transform: translateX(0); }
    .drawer-close {
      align-self: flex-end;
      width: 36px;
      height: 36px;
      border-radius: 8px;
      background: var(--sand);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--ink);
      font-size: 1.1rem;
    }
    .drawer-close:hover { background: #e5ddd0; }
    .drawer-nav {
      margin-top: 2rem;
      display: flex;
      flex-direction: column;
      gap: 0.4rem;
    }
    .drawer-nav a {
      font-size: 1.15rem;
      font-weight: 500;
      color: var(--ink);
      padding: 0.9rem 0.75rem;
      border-radius: 10px;
      transition: background var(--transition);
    }
    .drawer-nav a:hover { background: var(--cream); color: var(--brand); }
    .drawer-cta { margin-top: auto; }

    .drawer-overlay {
      position: fixed;
      inset: 0;
      background: rgba(20, 51, 40, 0.5);
      z-index: 190;
      opacity: 0;
      pointer-events: none;
      transition: opacity 300ms ease;
    }
    .drawer-overlay.open { opacity: 1; pointer-events: auto; }

    /* ===== Section ===== */
    .section { padding: 5rem 0; }
    .section-sm { padding: 3rem 0; }
    @media (min-width: 1024px) {
      .section { padding: 6.5rem 0; }
    }
    .sec-label {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 0.82rem;
      font-weight: 500;
      color: var(--accent-dark);
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }
    .sec-label::before {
      content: '';
      display: block;
      width: 26px;
      height: 2px;
      background: var(--accent);
      border-radius: 2px;
    }

    /* ===== Hero ===== */
    .hero-main {
      position: relative;
      background-color: var(--cream);
      background-image:
        linear-gradient(rgba(31,74,58,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(31,74,58,0.04) 1px, transparent 1px);
      background-size: 40px 40px;
      padding: 7.5rem 0 5rem;
      overflow: hidden;
    }
    .hero-main::before {
      content: '';
      position: absolute;
      top: -120px;
      right: -100px;
      width: 480px;
      height: 480px;
      background: radial-gradient(circle, rgba(217,164,65,0.18) 0%, rgba(217,164,65,0) 70%);
      border-radius: 50%;
      pointer-events: none;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 3rem;
      align-items: center;
      position: relative;
      z-index: 1;
    }
    @media (min-width: 1024px) {
      .hero-grid { grid-template-columns: 1.4fr 1fr; gap: 4rem; }
      .hero-main { padding: 8.5rem 0 6rem; }
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      background: rgba(217,164,65,0.12);
      border: 1px solid rgba(217,164,65,0.3);
      color: var(--accent-dark);
      border-radius: 999px;
      padding: 0.32rem 1rem;
      font-size: 0.82rem;
      font-weight: 500;
      margin-bottom: 1.5rem;
    }
    .hero-badge-dot {
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--accent);
      animation: pulseDot 2s infinite;
    }
    @keyframes pulseDot {
      0%, 100% { opacity: 1; }
      50% { opacity: 0.4; }
    }
    .hero-h1 {
      font-size: 2.1rem;
      line-height: 1.3;
      font-weight: 700;
      color: var(--ink);
      margin-bottom: 1.2rem;
      letter-spacing: -0.01em;
    }
    .hero-h1 .txt-brand { color: var(--brand); }
    .hero-h1 .txt-accent { color: var(--accent-dark); }
    @media (min-width: 768px) {
      .hero-h1 { font-size: 2.7rem; }
    }
    @media (min-width: 1280px) {
      .hero-h1 { font-size: 3.1rem; }
    }
    .hero-sub {
      font-size: 1.05rem;
      color: var(--muted);
      max-width: 520px;
      margin-bottom: 2rem;
      line-height: 1.8;
    }
    .hero-ctas { display: flex; flex-wrap: wrap; gap: 1rem; margin-bottom: 2rem; }
    .hero-trust {
      display: flex;
      align-items: center;
      gap: 1.2rem;
      color: var(--faint);
      font-size: 0.85rem;
    }
    .hero-trust span { display: inline-flex; align-items: center; gap: 0.35rem; }

    .hero-visual {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-deep);
      background-color: var(--sand);
      background-image: url('/assets/images/backpic/back-1.png');
      background-size: cover;
      background-position: center;
      min-height: 320px;
    }
    @media (min-width: 768px) {
      .hero-visual { min-height: 420px; }
    }
    .hero-visual::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(20,51,40,0.1) 0%, rgba(20,51,40,0.35) 100%);
      border-radius: inherit;
    }
    .hero-float-card {
      position: absolute;
      left: 1.5rem;
      right: 1.5rem;
      bottom: 1.5rem;
      background: rgba(255,255,255,0.95);
      -webkit-backdrop-filter: blur(8px);
      backdrop-filter: blur(8px);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-lg);
      padding: 1.2rem 1.4rem;
      z-index: 2;
      border: 1px solid rgba(255,255,255,0.3);
    }
    .float-card-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .float-card-badge {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      font-family: 'Noto Serif SC', serif;
      font-weight: 600;
      color: var(--brand);
      font-size: 1rem;
    }
    .float-card-badge .lv-tag {
      background: var(--accent-light);
      color: var(--accent-dark);
      font-size: 0.72rem;
      padding: 0.12rem 0.5rem;
      border-radius: 999px;
      font-weight: 500;
      font-family: 'Noto Sans SC', sans-serif;
    }
    .float-card-meta {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 0.75rem;
      margin-top: 1rem;
      padding-top: 1rem;
      border-top: 1px solid var(--line);
    }
    .float-card-meta div { text-align: center; }
    .float-card-meta .m-val {
      font-size: 0.8rem;
      font-weight: 600;
      color: var(--ink);
      display: block;
    }
    .float-card-meta .m-label {
      font-size: 0.7rem;
      color: var(--faint);
      display: block;
      margin-top: 2px;
    }

    /* ===== Tier Cards ===== */
    .tier-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 1.5rem;
    }
    @media (min-width: 768px) {
      .tier-grid { grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
    }
    .tier-card {
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      padding: 2rem 1.75rem;
      display: flex;
      flex-direction: column;
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
      position: relative;
    }
    .tier-card:hover {
      box-shadow: var(--shadow-mid);
      border-color: rgba(217,164,65,0.4);
      transform: translateY(-4px);
    }
    .tier-card.recommended {
      border-color: var(--accent);
      box-shadow: var(--shadow-mid);
    }
    @media (min-width: 768px) {
      .tier-card.recommended { transform: translateY(-8px); }
      .tier-card.recommended:hover { transform: translateY(-12px); }
    }
    .tier-badge {
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--accent);
      color: #fff;
      font-size: 0.76rem;
      font-weight: 600;
      padding: 0.22rem 0.9rem;
      border-radius: 999px;
      box-shadow: 0 4px 12px rgba(217,164,65,0.35);
    }
    .tier-name {
      font-family: 'Noto Serif SC', serif;
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--ink);
      margin-bottom: 0.3rem;
    }
    .tier-desc {
      font-size: 0.9rem;
      color: var(--muted);
      margin-bottom: 1.5rem;
    }
    .tier-price-row {
      margin-bottom: 1.5rem;
      display: flex;
      align-items: baseline;
      gap: 0.4rem;
    }
    .tier-price {
      font-size: 2rem;
      font-weight: 700;
      font-family: 'Noto Serif SC', serif;
      color: var(--brand);
    }
    .tier-price-unit { font-size: 0.88rem; color: var(--faint); }
    .tier-features {
      list-style: none;
      padding: 0;
      margin: 0 0 1.75rem;
      border-top: 1px solid var(--line);
      flex: 1;
    }
    .tier-features li {
      display: flex;
      align-items: flex-start;
      gap: 0.55rem;
      padding: 0.75rem 0;
      font-size: 0.9rem;
      color: var(--body);
      border-bottom: 1px dashed var(--line);
    }
    .tier-features li:last-child { border-bottom: none; }
    .tier-features .ico {
      flex-shrink: 0;
      width: 18px;
      height: 18px;
      margin-top: 2px;
      color: var(--success);
    }
    .tier-features .ico.no { color: var(--faint); }
    .tier-features .ico.num {
      color: var(--accent-dark);
      font-weight: 600;
      font-family: 'Noto Serif SC', serif;
      font-size: 0.82rem;
      text-align: center;
      line-height: 18px;
    }
    .tier-btn { width: 100%; }

    /* ===== CMS List ===== */
    .cms-layout {
      display: grid;
      grid-template-columns: 1fr;
      gap: 2.5rem;
    }
    @media (min-width: 1024px) {
      .cms-layout { grid-template-columns: 4fr 8fr; gap: 3.5rem; }
    }
    .cms-list { display: flex; flex-direction: column; }
    .cms-row {
      display: flex;
      align-items: center;
      gap: 1.5rem;
      padding: 1.15rem 1.25rem;
      border-radius: var(--radius-md);
      border: 1px solid transparent;
      transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
      cursor: pointer;
    }
    .cms-row:hover {
      background: #fff;
      border-color: var(--line);
      box-shadow: var(--shadow-sm);
    }
    .cms-row + .cms-row { border-top: 1px dashed var(--line); border-radius: 0; }
    .cms-row + .cms-row:hover { border-top-color: transparent; border-radius: var(--radius-md); }
    .cms-cat {
      flex-shrink: 0;
      background: var(--accent-light);
      color: var(--accent-dark);
      font-size: 0.74rem;
      font-weight: 500;
      padding: 0.2rem 0.65rem;
      border-radius: 999px;
    }
    .cms-body { flex: 1; min-width: 0; }
    .cms-title {
      font-size: 1rem;
      font-weight: 600;
      color: var(--ink);
      display: block;
      margin-bottom: 0.25rem;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
      font-family: 'Noto Serif SC', serif;
    }
    .cms-row:hover .cms-title { color: var(--brand); }
    .cms-summary {
      font-size: 0.85rem;
      color: var(--muted);
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }
    .cms-date {
      flex-shrink: 0;
      font-size: 0.78rem;
      color: var(--faint);
      white-space: nowrap;
    }
    .cms-arrow {
      flex-shrink: 0;
      color: var(--faint);
    }
    .cms-empty {
      background: var(--cream);
      border: 1px dashed var(--line);
      border-radius: var(--radius-md);
      padding: 3rem 2rem;
      text-align: center;
      color: var(--muted);
      font-size: 0.95rem;
    }
    .cms-empty .empty-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 56px;
      height: 56px;
      background: var(--sand);
      border-radius: 50%;
      margin-bottom: 1rem;
      color: var(--faint);
    }

    /* ===== Timeline ===== */
    .timeline-wrap {
      display: grid;
      grid-template-columns: 1fr;
      gap: 3rem;
    }
    @media (min-width: 1024px) {
      .timeline-wrap { grid-template-columns: 1fr 1.1fr; gap: 4rem; }
    }
    .timeline {
      position: relative;
      padding-left: 2.2rem;
      list-style: none;
    }
    .timeline::before {
      content: '';
      position: absolute;
      left: 12px;
      top: 8px;
      bottom: 8px;
      width: 2px;
      background: var(--accent);
      opacity: 0.6;
      border-radius: 2px;
    }
    .timeline-item {
      position: relative;
      padding: 0 0 2.5rem 0;
    }
    .timeline-item:last-child { padding-bottom: 0; }
    .timeline-dot {
      position: absolute;
      left: -2.2rem;
      top: 6px;
      width: 28px;
      height: 28px;
      border-radius: 50%;
      border: 2px solid var(--accent);
      background: var(--cream);
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 0 0 5px rgba(217,164,65,0.15);
    }
    .timeline-dot::after {
      content: '';
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: var(--brand);
    }
    .timeline-item:hover .timeline-dot::after { background: var(--accent); }
    .lv-badge {
      display: inline-block;
      font-size: 0.72rem;
      font-weight: 600;
      padding: 0.15rem 0.55rem;
      border-radius: 6px;
      margin-bottom: 0.4rem;
      font-family: 'Noto Sans SC', sans-serif;
    }
    .lv-1 { background: #e8f0ec; color: var(--brand-light); }
    .lv-2 { background: var(--accent-light); color: var(--accent-dark); }
    .lv-3 { background: #dddfe5; color: #4A5568; }
    .timeline-title {
      font-family: 'Noto Serif SC', serif;
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--ink);
      margin-bottom: 0.4rem;
    }
    .timeline-desc {
      font-size: 0.92rem;
      color: var(--muted);
      line-height: 1.8;
      margin-bottom: 0.75rem;
      max-width: 34rem;
    }
    .timeline-tags { display: flex; flex-wrap: wrap; gap: 0.55rem; }
    .tag-pill {
      display: inline-flex;
      align-items: center;
      gap: 0.3rem;
      background: var(--accent-light);
      color: var(--accent-dark);
      font-size: 0.78rem;
      padding: 0.22rem 0.75rem;
      border-radius: 999px;
      font-weight: 500;
    }
    .timeline-panel {
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      padding: 2.2rem;
      box-shadow: var(--shadow-sm);
      align-self: start;
    }
    @media (min-width: 1024px) {
      .timeline-panel { position: sticky; top: 100px; }
    }
    .panel-list { list-style: none; margin-top: 1.2rem; }
    .panel-list li {
      display: flex;
      gap: 0.7rem;
      padding: 0.65rem 0;
      font-size: 0.92rem;
      color: var(--body);
      border-bottom: 1px dashed var(--line);
    }
    .panel-list li:last-child { border-bottom: none; }
    .panel-list .dot {
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--accent);
      margin-top: 8px;
      flex-shrink: 0;
    }

    /* ===== Content Preview ===== */
    .preview-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 1.5rem;
    }
    @media (min-width: 1024px) {
      .preview-grid { grid-template-columns: 1.3fr 1fr; gap: 2rem; }
    }
    .preview-main {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      min-height: 280px;
      background-color: var(--sand);
      background-image: url('/assets/images/coverpic/cover-1.webp');
      background-size: cover;
      background-position: center;
      display: flex;
      align-items: flex-end;
      box-shadow: var(--shadow-mid);
    }
    @media (min-width: 768px) {
      .preview-main { min-height: 380px; }
    }
    .preview-main::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(200deg, rgba(20,51,40,0.1) 0%, rgba(20,51,40,0.72) 70%);
    }
    .preview-main-content {
      position: relative;
      z-index: 3;
      padding: 1.8rem;
      color: #fff;
      width: 100%;
    }
    .preview-lock {
      position: absolute;
      top: 1.2rem;
      right: 1.2rem;
      width: 40px;
      height: 40px;
      background: rgba(255,255,255,0.85);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--brand);
      z-index: 3;
      box-shadow: var(--shadow-sm);
    }
    .preview-main-title {
      font-family: 'Noto Serif SC', serif;
      font-size: 1.35rem;
      font-weight: 600;
      line-height: 1.5;
      margin-bottom: 0.5rem;
      color: #fff;
    }
    .preview-main-meta { font-size: 0.82rem; opacity: 0.8; display: flex; gap: 1rem; align-items: center; }
    .preview-main-meta span { display: inline-flex; align-items: center; gap: 0.3rem; }
    .preview-side {
      display: flex;
      flex-direction: column;
      gap: 1.2rem;
    }
    .preview-sm-card {
      display: flex;
      gap: 1rem;
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      padding: 1rem;
      align-items: center;
      transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
      cursor: pointer;
    }
    .preview-sm-card:hover {
      box-shadow: var(--shadow-mid);
      border-color: rgba(217,164,65,0.5);
      transform: translateY(-2px);
    }
    .preview-sm-thumb {
      width: 92px;
      height: 72px;
      border-radius: var(--radius-sm);
      object-fit: cover;
      flex-shrink: 0;
      background-color: var(--sand);
    }
    .preview-sm-title {
      font-size: 0.98rem;
      font-weight: 600;
      color: var(--ink);
      line-height: 1.5;
      margin-bottom: 0.35rem;
      font-family: 'Noto Serif SC', serif;
    }
    .preview-sm-card:hover .preview-sm-title { color: var(--brand); }
    .preview-sm-meta {
      display: flex;
      gap: 0.75rem;
      align-items: center;
      font-size: 0.78rem;
      color: var(--faint);
    }
    .cta-strip {
      background: var(--brand-dark);
      border-radius: var(--radius-lg);
      padding: 2rem 2.5rem;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 1.5rem;
      margin-top: 2.5rem;
      color: #fff;
    }
    .cta-strip-title {
      font-family: 'Noto Serif SC', serif;
      font-size: 1.3rem;
      font-weight: 600;
      color: #fff;
      margin-bottom: 0.3rem;
    }
    .cta-strip-desc { font-size: 0.9rem; color: rgba(250,247,242,0.8); }

    /* ===== FAQ ===== */
    .faq-layout {
      display: grid;
      grid-template-columns: 1fr;
      gap: 2.5rem;
    }
    @media (min-width: 1024px) {
      .faq-layout { grid-template-columns: 4fr 8fr; gap: 3.5rem; }
    }
    .faq-list { display: flex; flex-direction: column; gap: 0.9rem; }
    .faq-item {
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: border-color var(--transition), box-shadow var(--transition);
    }
    .faq-item:hover { border-color: rgba(217,164,65,0.5); }
    .faq-item.active {
      border-color: var(--accent);
      box-shadow: var(--shadow-sm);
      border-left: 3px solid var(--accent);
    }
    .faq-question {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
      padding: 1.2rem 1.4rem;
      width: 100%;
      text-align: left;
      font-size: 0.98rem;
      font-weight: 600;
      color: var(--ink);
      font-family: 'Noto Serif SC', serif;
    }
    .faq-toggle {
      flex-shrink: 0;
      width: 30px;
      height: 30px;
      border-radius: 50%;
      background: var(--cream);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent-dark);
      transition: transform 300ms ease, background var(--transition);
    }
    .faq-item.active .faq-toggle {
      background: var(--accent-light);
      transform: rotate(45deg);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 350ms ease;
    }
    .faq-answer-inner {
      padding: 0 1.4rem 1.4rem;
      font-size: 0.92rem;
      color: var(--muted);
      line-height: 1.9;
      border-top: 1px solid var(--line);
      padding-top: 1rem;
    }

    /* ===== CTA Banner ===== */
    .cta-banner {
      background-color: var(--brand-dark);
      background-image: url('/assets/images/backpic/back-2.png');
      background-size: cover;
      background-position: center;
      border-radius: var(--radius-lg);
      overflow: hidden;
      position: relative;
    }
    .cta-banner::before {
      content: '';
      position: absolute;
      inset: 0;
      background: rgba(20,51,40,0.84);
    }
    .cta-banner-inner {
      position: relative;
      z-index: 2;
      padding: 3.5rem 2.5rem;
      text-align: center;
    }
    @media (min-width: 768px) {
      .cta-banner-inner { padding: 4.5rem 4rem; }
    }
    .cta-banner-title {
      font-family: 'Noto Serif SC', serif;
      font-size: 1.8rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 0.75rem;
      line-height: 1.4;
    }
    .cta-banner-title .txt-accent { color: var(--accent); }
    .cta-banner-desc {
      color: rgba(250,247,242,0.8);
      font-size: 1rem;
      max-width: 560px;
      margin: 0 auto 2rem;
    }
    .cta-banner-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 1rem; }
    .cta-banner-form {
      display: flex;
      gap: 0.75rem;
      justify-content: center;
      flex-wrap: wrap;
      margin-top: 1.5rem;
    }
    .cta-input {
      background: rgba(255,255,255,0.12);
      border: 1px solid rgba(255,255,255,0.25);
      border-radius: 999px;
      padding: 0.65rem 1.25rem;
      color: #fff;
      font-size: 0.92rem;
      min-width: 240px;
      outline: none;
      transition: border-color var(--transition), background var(--transition);
    }
    .cta-input::placeholder { color: rgba(250,247,242,0.55); }
    .cta-input:focus {
      border-color: var(--accent);
      background: rgba(255,255,255,0.2);
    }

    /* ===== Footer ===== */
    .site-footer {
      background: var(--brand-dark);
      color: #B8C6C0;
      padding: 4rem 0 0;
      margin-top: 2rem;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 2.5rem;
      padding-bottom: 3rem;
    }
    @media (min-width: 768px) {
      .footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 2rem; }
    }
    .footer-logo {
      font-family: 'Noto Serif SC', serif;
      font-size: 1.4rem;
      font-weight: 700;
      color: #fff;
      display: flex;
      align-items: center;
      gap: 0.4rem;
      margin-bottom: 0.8rem;
    }
    .footer-logo .logo-z6 {
      background: var(--accent);
      color: var(--brand-dark);
      font-size: 0.72rem;
      padding: 0.15rem 0.45rem;
      border-radius: 6px;
      font-weight: 700;
    }
    .footer-tagline {
      font-size: 0.88rem;
      color: #8FA69E;
      margin-bottom: 1.2rem;
      max-width: 240px;
      line-height: 1.7;
    }
    .footer-social { display: flex; gap: 0.6rem; }
    .footer-social a {
      width: 34px;
      height: 34px;
      border-radius: 8px;
      border: 1px solid rgba(250,247,242,0.15);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #A7BCB4;
      transition: background var(--transition), color var(--transition), border-color var(--transition);
    }
    .footer-social a:hover { background: var(--accent); color: var(--brand-dark); border-color: var(--accent); }
    .footer-title {
      font-size: 0.9rem;
      font-weight: 600;
      color: #fff;
      margin-bottom: 1.2rem;
      letter-spacing: 0.04em;
    }
    .footer-links { list-style: none; padding: 0; }
    .footer-links li { margin-bottom: 0.7rem; }
    .footer-links a {
      font-size: 0.88rem;
      color: #A7BCB4;
    }
    .footer-links a:hover { color: var(--accent); }
    .footer-copy {
      border-top: 1px solid rgba(250,247,242,0.15);
      padding: 1.5rem 0;
      display: flex;
      flex-wrap: wrap;
      gap: 1rem;
      align-items: center;
      justify-content: space-between;
      font-size: 0.8rem;
      color: #8FA69E;
    }

    /* ===== Focus visible global ===== */
    a:focus-visible, button:focus-visible {
      outline: 2px solid var(--accent);
      outline-offset: 2px;
      border-radius: 4px;
    }

    /* ===== Utilities ===== */
    .bg-cream { background: var(--cream); }
    .bg-white { background: var(--white); }
    .bg-sand { background: var(--sand); }
    .bg-brand-dark { background: var(--brand-dark); }
    .text-brand { color: var(--brand); }
    .text-muted { color: var(--muted); }
    .text-faint { color: var(--faint); }

    .grid-pattern {
      background-image:
        linear-gradient(rgba(31,74,58,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(31,74,58,0.04) 1px, transparent 1px);
      background-size: 40px 40px;
    }

    .link-more {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      font-size: 0.9rem;
      font-weight: 500;
      color: var(--brand);
      border-bottom: 1px solid transparent;
      padding-bottom: 2px;
      transition: border-color var(--transition);
    }
    .link-more:hover { border-color: var(--brand); }

    @media (max-width: 768px) {
      .footer-grid { gap: 2rem; }
      .hero-main { padding-top: 6rem; }
    }

/* roulang page: category1 */
:root {
      --ink: #1C2321;
      --ink-2: #2E3A36;
      --muted: #66736D;
      --brand: #1F4A3A;
      --brand-deep: #143328;
      --gold: #D9A441;
      --gold-soft: #F6EDDD;
      --gold-deep: #A9771F;
      --bg: #FAF7F2;
      --bg-2: #F0EBE2;
      --line: #E5DFD5;
      --white: #FFFFFF;
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-pill: 999px;
      --shadow-sm: 0 1px 3px rgba(31, 74, 58, 0.06);
      --shadow-md: 0 8px 30px rgba(31, 74, 58, 0.08);
      --shadow-lg: 0 20px 45px rgba(31, 74, 58, 0.12);
      --transition: 200ms ease;
    }

    *,
    *::before,
    *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
      background-color: var(--bg);
      color: var(--ink-2);
      line-height: 1.75;
      font-size: 16px;
      overflow-x: hidden;
    }

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

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

    button,
    input {
      font-family: inherit;
      border: none;
      background: none;
    }

    .container-x {
      max-width: 1200px;
      margin-inline: auto;
      padding-inline: 1.5rem;
    }

    h1,
    h2,
    h3,
    h4 {
      font-family: 'Noto Serif SC', 'Songti SC', serif;
      line-height: 1.3;
      color: var(--ink);
      letter-spacing: -0.01em;
    }

    /* header */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      height: 72px;
      background: rgba(250, 247, 242, 0.92);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--line);
      z-index: 60;
    }

    .header-inner {
      height: 72px;
      display: flex;
      align-items: center;
      gap: 1.75rem;
    }

    .logo {
      display: inline-flex;
      align-items: center;
      gap: 0.35rem;
      font-family: 'Noto Serif SC', serif;
      font-weight: 900;
      font-size: 1.375rem;
      color: var(--brand);
      letter-spacing: -0.02em;
      white-space: nowrap;
    }

    .logo-z6 {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--gold);
      color: #fff;
      font-family: 'Noto Sans SC', sans-serif;
      font-size: 0.7rem;
      font-weight: 700;
      border-radius: 6px;
      padding: 0.1rem 0.4rem;
      letter-spacing: 0;
      transform: translateY(-1px);
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 1.75rem;
      margin-left: 0.5rem;
    }

    .nav-link {
      position: relative;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--ink-2);
      padding: 0.25rem 0;
      white-space: nowrap;
    }

    .nav-link::after {
      content: '';
      position: absolute;
      left: 0;
      bottom: -4px;
      width: 0;
      height: 2px;
      background: var(--gold);
      border-radius: 2px;
      transition: width var(--transition);
    }

    .nav-link:hover {
      color: var(--brand);
    }

    .nav-link:hover::after {
      width: 100%;
    }

    .nav-link.active {
      color: var(--brand);
      font-weight: 700;
    }

    .nav-link.active::after {
      width: 100%;
      background: var(--brand);
    }

    .header-right {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      margin-left: auto;
    }

    .search-box {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      width: 240px;
      background: var(--bg-2);
      border: 1px solid transparent;
      border-radius: 999px;
      padding: 0.4rem 0.75rem;
      color: var(--muted);
      transition: border-color var(--transition), box-shadow var(--transition);
    }

    .search-box:focus-within {
      border-color: var(--gold);
      box-shadow: 0 0 0 3px rgba(217, 164, 65, 0.18);
      background: #fff;
    }

    .search-box input {
      flex: 1;
      min-width: 0;
      font-size: 0.85rem;
      color: var(--ink-2);
      outline: none;
      background: transparent;
    }

    .search-box input::placeholder {
      color: #98A19D;
    }

    .kbd-key {
      font-size: 0.7rem;
      color: var(--muted);
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 5px;
      padding: 0.05rem 0.4rem;
      line-height: 1.4;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      border-radius: 999px;
      font-weight: 700;
      font-size: 0.95rem;
      padding: 0.6rem 1.5rem;
      cursor: pointer;
      transition: background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition), transform var(--transition);
      white-space: nowrap;
    }

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

    .btn-gold:hover {
      background: #c9942f;
      box-shadow: var(--shadow-md);
      transform: translateY(-1px);
    }

    .btn-gold:active {
      transform: translateY(0);
      box-shadow: var(--shadow-sm);
    }

    .btn-gold:focus-visible,
    .btn-outline:focus-visible,
    .btn-brand:focus-visible {
      outline: 3px solid rgba(217, 164, 65, 0.4);
      outline-offset: 2px;
    }

    .btn-outline {
      border: 1.5px solid var(--brand);
      color: var(--brand);
      background: transparent;
    }

    .btn-outline:hover {
      background: rgba(31, 74, 58, 0.06);
      border-color: var(--brand);
    }

    .btn-brand {
      background: var(--brand);
      color: #fff;
    }

    .btn-brand:hover {
      background: #173d30;
      box-shadow: var(--shadow-md);
      transform: translateY(-1px);
    }

    .btn-sm {
      padding: 0.4rem 1.1rem;
      font-size: 0.85rem;
    }

    .btn-lg {
      padding: 0.85rem 2.2rem;
      font-size: 1.05rem;
    }

    .link-quiet {
      font-size: 0.9rem;
      color: var(--muted);
      font-weight: 500;
    }

    .link-quiet:hover {
      color: var(--brand);
    }

    .mobile-menu-btn {
      display: none;
      align-items: center;
      justify-content: center;
      width: 40px;
      height: 40px;
      border-radius: 10px;
      color: var(--brand);
      background: var(--bg-2);
      cursor: pointer;
      margin-left: auto;
    }

    .mobile-menu-btn svg {
      width: 22px;
      height: 22px;
    }

    /* hero */
    .hero-category {
      position: relative;
      background-image: url('/assets/images/backpic/back-1.png');
      background-size: cover;
      background-position: center;
      padding: 150px 0 100px;
      margin-top: 72px;
    }

    .hero-cat-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(100deg, rgba(20, 51, 40, 0.94) 0%, rgba(20, 51, 40, 0.78) 60%, rgba(20, 51, 40, 0.6) 100%);
      z-index: 1;
    }

    .hero-cat-content {
      position: relative;
      z-index: 2;
      max-width: 720px;
    }

    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 0.85rem;
      color: rgba(250, 247, 242, 0.72);
      margin-bottom: 1.5rem;
    }

    .breadcrumb a:hover {
      color: var(--gold);
    }

    .hero-cat-tag {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      background: rgba(217, 164, 65, 0.16);
      border: 1px solid rgba(217, 164, 65, 0.4);
      color: #F0D9A5;
      font-size: 0.8rem;
      font-weight: 500;
      padding: 0.3rem 0.9rem;
      border-radius: 999px;
      margin-bottom: 1.25rem;
    }

    .hero-cat-title {
      font-size: clamp(2.2rem, 5vw, 3.5rem);
      font-weight: 900;
      color: #fff;
      line-height: 1.2;
      margin-bottom: 1.25rem;
    }

    .hero-cat-title .highlight {
      color: var(--gold);
      position: relative;
    }

    .hero-cat-desc {
      font-size: 1.1rem;
      color: rgba(250, 247, 242, 0.8);
      max-width: 560px;
      margin-bottom: 2rem;
      line-height: 1.8;
    }

    .hero-cat-btns {
      display: flex;
      flex-wrap: wrap;
      gap: 1rem;
    }

    /* body */
    .cat-body {
      display: grid;
      grid-template-columns: 256px 1fr;
      gap: 3.5rem;
      padding: 4.5rem 1.5rem 5rem;
      align-items: start;
    }

    .anchor-nav-wrap {
      position: sticky;
      top: 100px;
    }

    .anchor-nav-title {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--muted);
      letter-spacing: 0.04em;
      margin-bottom: 1rem;
      text-transform: uppercase;
    }

    .anchor-nav {
      display: flex;
      flex-direction: column;
      gap: 0.25rem;
      border-left: 2px solid var(--line);
      padding-left: 0;
    }

    .anchor-link {
      position: relative;
      display: block;
      padding: 0.5rem 1rem;
      font-size: 0.92rem;
      color: var(--ink-2);
      font-weight: 500;
      border-radius: 8px 0 0 8px;
      transition: color var(--transition), background var(--transition);
    }

    .anchor-link::before {
      content: '';
      position: absolute;
      left: -2px;
      top: 0.55rem;
      bottom: 0.55rem;
      width: 2px;
      background: var(--gold);
      border-radius: 2px;
      opacity: 0;
      transition: opacity var(--transition);
    }

    .anchor-link:hover {
      color: var(--gold-deep);
      background: var(--gold-soft);
    }

    .anchor-link.active {
      color: var(--brand);
      background: var(--gold-soft);
      font-weight: 700;
    }

    .anchor-link.active::before {
      opacity: 1;
    }

    .guide-block {
      scroll-margin-top: 120px;
      margin-bottom: 3.5rem;
    }

    .guide-block:last-of-type {
      margin-bottom: 0;
    }

    .section-kicker {
      display: inline-block;
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--gold-deep);
      letter-spacing: 0.06em;
      background: var(--gold-soft);
      padding: 0.25rem 0.9rem;
      border-radius: 999px;
      margin-bottom: 0.8rem;
    }

    .section-title {
      font-size: clamp(1.6rem, 3vw, 2.1rem);
      font-weight: 800;
      margin-bottom: 0.75rem;
    }

    .section-lede {
      color: var(--muted);
      font-size: 1rem;
      max-width: 640px;
      margin-bottom: 1.75rem;
      line-height: 1.8;
    }

    /* intro */
    .intro-card {
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      padding: 2rem 2.25rem;
      box-shadow: var(--shadow-sm);
    }

    .intro-card p {
      color: var(--muted);
      margin-bottom: 1rem;
      line-height: 1.9;
    }

    .intro-card p:last-of-type {
      margin-bottom: 1.5rem;
    }

    .data-points {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1rem;
      border-top: 1px dashed var(--line);
      padding-top: 1.5rem;
    }

    .data-point {
      text-align: center;
      background: var(--bg);
      border-radius: var(--radius-md);
      padding: 1rem 0.5rem;
    }

    .data-point strong {
      display: block;
      font-family: 'Noto Serif SC', serif;
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--brand);
    }

    .data-point span {
      font-size: 0.8rem;
      color: var(--muted);
    }

    /* topics grid */
    .topics-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 1.5rem;
    }

    .cover-card {
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
      display: flex;
      flex-direction: column;
    }

    .cover-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
      border-color: var(--gold);
    }

    .cover-img-wrap {
      position: relative;
      aspect-ratio: 4 / 3;
      overflow: hidden;
      background: var(--bg-2);
    }

    .cover-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 400ms ease;
    }

    .cover-card:hover .cover-img-wrap img {
      transform: scale(1.03);
    }

    .cover-cat-tag {
      position: absolute;
      top: 0.9rem;
      left: 0.9rem;
      background: rgba(250, 247, 242, 0.92);
      color: var(--brand);
      font-size: 0.75rem;
      font-weight: 700;
      padding: 0.25rem 0.75rem;
      border-radius: 999px;
      backdrop-filter: blur(6px);
    }

    .cover-body {
      display: flex;
      flex-direction: column;
      flex: 1;
      padding: 1.4rem 1.5rem 1.5rem;
    }

    .cover-body h3 {
      font-size: 1.15rem;
      font-weight: 800;
      margin-bottom: 0.5rem;
      transition: color var(--transition);
    }

    .cover-card:hover .cover-body h3 {
      color: var(--brand);
    }

    .cover-body p {
      font-size: 0.9rem;
      color: var(--muted);
      line-height: 1.7;
      margin-bottom: 1rem;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .read-more {
      margin-top: auto;
      display: inline-flex;
      align-items: center;
      gap: 0.35rem;
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--brand);
    }

    .read-more svg {
      width: 15px;
      height: 15px;
      transition: transform var(--transition);
    }

    .read-more:hover svg {
      transform: translateX(4px);
    }

    /* path timeline */
    .path-timeline {
      position: relative;
      padding-left: 2.25rem;
    }

    .path-timeline::before {
      content: '';
      position: absolute;
      left: 11px;
      top: 8px;
      bottom: 8px;
      width: 2px;
      background: var(--gold);
      border-radius: 2px;
    }

    .path-item {
      position: relative;
      padding-bottom: 2.25rem;
    }

    .path-item:last-child {
      padding-bottom: 0;
    }

    .path-dot {
      position: absolute;
      left: -2.25rem;
      top: 0.35rem;
      width: 24px;
      height: 24px;
      border-radius: 50%;
      background: var(--gold-soft);
      border: 2px solid var(--gold);
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .path-dot::after {
      content: '';
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--brand);
    }

    .path-card {
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      padding: 1.5rem 1.75rem;
      box-shadow: var(--shadow-sm);
      transition: box-shadow var(--transition), border-color var(--transition);
    }

    .path-card:hover {
      box-shadow: var(--shadow-md);
      border-color: var(--gold);
    }

    .path-step-label {
      display: inline-block;
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--gold-deep);
      background: var(--gold-soft);
      padding: 0.2rem 0.75rem;
      border-radius: 999px;
      margin-bottom: 0.6rem;
    }

    .path-card h3 {
      font-size: 1.05rem;
      font-weight: 800;
      margin-bottom: 0.4rem;
    }

    .path-card p {
      font-size: 0.92rem;
      color: var(--muted);
      line-height: 1.7;
    }

    /* faq */
    .faq-item {
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      margin-bottom: 0.9rem;
      overflow: hidden;
      transition: border-color var(--transition), box-shadow var(--transition);
    }

    .faq-item.open {
      border-color: var(--gold);
      box-shadow: var(--shadow-sm);
    }

    .faq-q {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
      width: 100%;
      padding: 1.25rem 1.5rem;
      font-size: 1rem;
      font-weight: 700;
      color: var(--ink);
      cursor: pointer;
      text-align: left;
      transition: color var(--transition);
    }

    .faq-q:hover {
      color: var(--brand);
    }

    .faq-q svg {
      flex-shrink: 0;
      width: 18px;
      height: 18px;
      color: var(--muted);
      transition: transform 300ms ease, color var(--transition);
    }

    .faq-item.open .faq-q svg {
      transform: rotate(45deg);
      color: var(--gold-deep);
    }

    .faq-a {
      max-height: 0;
      overflow: hidden;
      transition: max-height 300ms ease;
    }

    .faq-a-inner {
      padding: 0 1.5rem 1.5rem;
      font-size: 0.95rem;
      color: var(--muted);
      line-height: 1.85;
      border-left: 3px solid var(--gold);
      margin: 0 1.5rem 1.25rem;
      background: var(--bg);
      border-radius: 0 8px 8px 0;
    }

    .faq-item.open .faq-a {
      max-height: 400px;
    }

    /* cta */
    .cta-band {
      background: var(--brand-deep);
      padding: 4.5rem 1.5rem;
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .cta-band::before {
      content: '';
      position: absolute;
      right: -120px;
      top: -120px;
      width: 360px;
      height: 360px;
      background: radial-gradient(circle, rgba(217, 164, 65, 0.22) 0%, transparent 70%);
      border-radius: 50%;
    }

    .cta-band-inner {
      position: relative;
      z-index: 1;
      max-width: 720px;
    }

    .cta-band h2 {
      font-size: clamp(1.7rem, 3.5vw, 2.4rem);
      color: #fff;
      font-weight: 800;
      margin-bottom: 0.75rem;
    }

    .cta-band h2 .gold {
      color: var(--gold);
    }

    .cta-band p {
      color: rgba(250, 247, 242, 0.8);
      margin-bottom: 1.75rem;
      font-size: 1rem;
    }

    /* footer */
    .site-footer {
      background: var(--brand-deep);
      color: #B8C6C0;
      padding: 4rem 1.5rem 2rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 2.5rem;
      max-width: 1200px;
      margin-inline: auto;
      padding-bottom: 2.5rem;
      border-bottom: 1px solid rgba(250, 247, 242, 0.12);
    }

    .footer-logo {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      font-family: 'Noto Serif SC', serif;
      font-weight: 900;
      font-size: 1.25rem;
      color: #fff;
      margin-bottom: 0.9rem;
    }

    .footer-tagline {
      font-size: 0.92rem;
      color: #B8C6C0;
      line-height: 1.8;
      margin-bottom: 1.25rem;
      max-width: 280px;
    }

    .footer-social {
      display: flex;
      gap: 0.75rem;
    }

    .footer-social a {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 36px;
      height: 36px;
      border-radius: 10px;
      background: rgba(250, 247, 242, 0.08);
      color: #B8C6C0;
      transition: background var(--transition), color var(--transition), transform var(--transition);
    }

    .footer-social a:hover {
      background: var(--gold);
      color: var(--brand-deep);
      transform: translateY(-2px);
    }

    .footer-title {
      font-size: 0.9rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 1rem;
    }

    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 0.6rem;
    }

    .footer-links a {
      font-size: 0.9rem;
      color: #B8C6C0;
      transition: color var(--transition);
    }

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

    .footer-copy {
      max-width: 1200px;
      margin-inline: auto;
      padding-top: 1.5rem;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 0.75rem;
      font-size: 0.82rem;
      color: #8AA097;
    }

    /* responsive */
    @media (max-width: 1024px) {
      .search-box {
        width: 170px;
      }

      .main-nav {
        gap: 1.1rem;
      }

      .cat-body {
        grid-template-columns: 1fr;
        gap: 2.5rem;
      }

      .anchor-nav-wrap {
        position: static;
        overflow-x: auto;
        padding-bottom: 0.5rem;
      }

      .anchor-nav {
        flex-direction: row;
        border-left: none;
        border-bottom: 2px solid var(--line);
        padding-bottom: 0.5rem;
        gap: 0.75rem;
      }

      .anchor-link {
        border-radius: 8px;
        padding: 0.4rem 1rem;
        white-space: nowrap;
      }

      .anchor-link::before {
        display: none;
      }

      .anchor-link.active {
        background: var(--brand);
        color: #fff;
      }
    }

    @media (max-width: 900px) {
      .header-inner {
        gap: 1rem;
      }

      .main-nav {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
        padding: 1.25rem 1.5rem 1.5rem;
        box-shadow: var(--shadow-lg);
        border-bottom: 1px solid var(--line);
        display: none;
        z-index: 59;
      }

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

      .nav-link {
        padding: 0.75rem 0;
        font-size: 1.05rem;
        width: 100%;
      }

      .nav-link::after {
        display: none;
      }

      .search-box {
        display: none;
      }

      .header-right .link-quiet {
        display: none;
      }

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

      .hero-category {
        padding: 120px 0 70px;
      }

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

    @media (max-width: 640px) {
      .container-x {
        padding-inline: 1rem;
      }

      .data-points {
        grid-template-columns: 1fr;
        gap: 0.75rem;
      }

      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
      }

      .cta-band {
        padding: 3.5rem 1rem;
      }

      .hero-cat-btns {
        flex-direction: column;
        width: 100%;
      }

      .hero-cat-btns .btn {
        width: 100%;
      }

      .cat-body {
        padding: 3rem 1rem 3.5rem;
      }

      .intro-card {
        padding: 1.5rem;
      }

      .footer-copy {
        flex-direction: column;
        text-align: center;
      }
    }

    @media (max-width: 480px) {
      .footer-grid {
        grid-template-columns: 1fr;
      }

      .logo {
        font-size: 1.15rem;
      }

      .btn-gold.header-cta {
        padding: 0.5rem 1rem;
        font-size: 0.85rem;
      }
    }

/* roulang page: article */
:root {
      --primary: #1F4A3A;
      --primary-dark: #143328;
      --accent: #D9A441;
      --accent-dark: #B8892F;
      --bg: #FAF7F2;
      --bg-secondary: #F0EBE2;
      --card-bg: #FFFFFF;
      --text-main: #1C2321;
      --text-body: #2E3A36;
      --text-muted: #66736D;
      --text-faint: #98A19D;
      --border-color: #E5DFD5;
      --border-light: #D6D0C5;
      --success: #2D7A4F;
      --warning: #C2752D;
      --danger: #C0392B;
      --info: #4A6572;
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-sm: 8px;
      --shadow-sm: 0 1px 3px rgba(31, 74, 58, 0.06);
      --shadow-md: 0 8px 30px rgba(31, 74, 58, 0.08);
      --shadow-lg: 0 20px 45px rgba(31, 74, 58, 0.12);
      --font-serif: 'Noto Serif SC', 'Songti SC', serif;
      --font-sans: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
    }
    * { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
      font-family: var(--font-sans);
      background: var(--bg);
      color: var(--text-body);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }
    a { color: inherit; }
    img { max-width: 100%; display: block; }
    button { font-family: inherit; }

    .container-x {
      max-width: 1280px;
      margin: 0 auto;
      padding-left: 1rem;
      padding-right: 1rem;
    }
    @media (min-width: 768px) {
      .container-x { padding-left: 1.5rem; padding-right: 1.5rem; }
    }
    @media (min-width: 1024px) {
      .container-x { padding-left: 2rem; padding-right: 2rem; }
    }

    /* ===== Header ===== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      height: 72px;
      background: rgba(250, 247, 242, 0.92);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border-color);
    }
    .site-header .container-x {
      display: flex;
      align-items: center;
      height: 100%;
      gap: 1.5rem;
    }
    .brand-logo {
      font-family: var(--font-serif);
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--text-main);
      text-decoration: none;
      letter-spacing: 0.01em;
      white-space: nowrap;
      display: inline-flex;
      align-items: baseline;
    }
    .logo-z6 {
      color: var(--accent);
      font-size: 1.05em;
      margin-left: 2px;
      font-weight: 700;
    }
    .main-nav {
      display: flex;
      gap: 0.25rem;
      margin-left: 0.5rem;
    }
    .nav-link {
      display: inline-flex;
      align-items: center;
      padding: 0.5rem 0.875rem;
      font-size: 0.9rem;
      font-weight: 500;
      color: var(--text-body);
      text-decoration: none;
      border-radius: 999px;
      transition: all 0.2s ease;
      border-bottom: 2px solid transparent;
    }
    .nav-link:hover {
      color: var(--primary);
      background: rgba(31, 74, 58, 0.06);
    }
    .nav-link.active {
      color: var(--primary);
      font-weight: 600;
      border-bottom-color: var(--primary);
      border-radius: 0;
      padding-bottom: 0.35rem;
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      margin-left: auto;
    }
    .search-box {
      display: flex;
      align-items: center;
      width: 220px;
      height: 38px;
      background: var(--bg-secondary);
      border: 1px solid transparent;
      border-radius: 999px;
      padding: 0 0.75rem;
      gap: 0.5rem;
      transition: all 0.2s ease;
    }
    .search-box:hover,
    .search-box:focus-within {
      border-color: var(--accent);
      background: #fff;
      box-shadow: 0 0 0 3px rgba(217, 164, 65, 0.15);
    }
    .search-box input {
      flex: 1;
      border: none;
      outline: none;
      background: transparent;
      font-size: 0.85rem;
      color: var(--text-body);
      min-width: 0;
    }
    .search-box .kbd {
      font-size: 0.68rem;
      color: var(--text-faint);
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: 4px;
      padding: 1px 5px;
      font-family: var(--font-sans);
      white-space: nowrap;
    }
    .search-box .search-icon {
      flex-shrink: 0;
      color: var(--text-faint);
    }
    .header-login {
      font-size: 0.85rem;
      font-weight: 500;
      color: var(--text-body);
      text-decoration: none;
      padding: 0.375rem 0.75rem;
      border-radius: 999px;
      transition: all 0.2s ease;
      white-space: nowrap;
    }
    .header-login:hover {
      color: var(--primary);
      background: rgba(31, 74, 58, 0.06);
    }
    .btn-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 0.5rem 1.25rem;
      font-size: 0.875rem;
      font-weight: 600;
      color: #fff;
      background: var(--accent);
      border-radius: 999px;
      text-decoration: none;
      transition: all 0.2s ease;
      border: 1px solid transparent;
      white-space: nowrap;
      cursor: pointer;
    }
    .btn-cta:hover {
      background: var(--accent-dark);
      box-shadow: var(--shadow-md);
      transform: translateY(-1px);
    }
    .btn-cta:active { transform: translateY(0); }
    .btn-cta:focus-visible {
      outline: 3px solid rgba(217, 164, 65, 0.4);
      outline-offset: 2px;
    }
    .menu-toggle {
      display: none;
      background: none;
      border: 1px solid var(--border-color);
      cursor: pointer;
      padding: 0.5rem;
      border-radius: 8px;
      color: var(--text-body);
      transition: all 0.2s ease;
    }
    .menu-toggle:hover {
      border-color: var(--accent);
      color: var(--primary);
    }
    .mobile-drawer {
      display: none;
      position: fixed;
      top: 72px;
      right: 0;
      bottom: 0;
      left: 0;
      background: var(--card-bg);
      z-index: 99;
      padding: 2rem 1.5rem;
      flex-direction: column;
      gap: 0rem;
      box-shadow: var(--shadow-lg);
      overflow-y: auto;
    }
    .mobile-drawer.open { display: flex; }
    .mobile-drawer a {
      font-size: 1.1rem;
      font-weight: 500;
      color: var(--text-body);
      text-decoration: none;
      padding: 0.9rem 0;
      border-bottom: 1px solid var(--border-color);
      transition: color 0.2s ease;
    }
    .mobile-drawer a:hover { color: var(--primary); }
    .mobile-drawer a.active { color: var(--primary); font-weight: 600; }
    .mobile-drawer .drawer-cta {
      margin-top: 1.5rem;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--accent);
      color: #fff;
      border-radius: 999px;
      padding: 0.75rem 1.5rem;
      font-weight: 600;
      border: none;
    }
    .mobile-drawer .drawer-cta:hover { background: var(--accent-dark); }
    @media (max-width: 1024px) {
      .main-nav { display: none; }
      .search-box { display: none; }
      .menu-toggle { display: inline-flex; }
    }
    @media (max-width: 768px) {
      .header-login { display: none; }
      .site-header .container-x { gap: 0.75rem; }
      .brand-logo { font-size: 1.15rem; }
    }

    /* ===== Footer ===== */
    .site-footer {
      background: var(--primary-dark);
      color: #B8C6C0;
      padding: 3.5rem 0 1.5rem;
      margin-top: 0;
    }
    .site-footer .footer-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 2rem;
      padding-bottom: 2rem;
      border-bottom: 1px solid rgba(250, 247, 242, 0.15);
    }
    @media (min-width: 768px) {
      .site-footer .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
    }
    .footer-logo {
      font-family: var(--font-serif);
      font-size: 1.3rem;
      font-weight: 700;
      color: #fff;
      text-decoration: none;
      display: inline-flex;
      align-items: baseline;
    }
    .footer-logo .logo-z6 { color: var(--accent); }
    .footer-tagline {
      margin-top: 0.75rem;
      font-size: 0.875rem;
      line-height: 1.6;
      color: #B8C6C0;
      max-width: 280px;
    }
    .footer-social {
      display: flex;
      gap: 0.5rem;
      margin-top: 1rem;
    }
    .footer-social a {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 32px;
      height: 32px;
      border-radius: 50%;
      border: 1px solid rgba(255, 255, 255, 0.25);
      color: #B8C6C0;
      transition: all 0.2s ease;
    }
    .footer-social a:hover {
      border-color: var(--accent);
      color: var(--accent);
      background: rgba(217, 164, 65, 0.1);
    }
    .footer-title {
      font-family: var(--font-serif);
      font-size: 0.95rem;
      font-weight: 600;
      color: #fff;
      margin-bottom: 1rem;
    }
    .footer-links { list-style: none; }
    .footer-links li { margin-bottom: 0.5rem; }
    .footer-links a {
      font-size: 0.85rem;
      color: #B8C6C0;
      text-decoration: none;
      transition: color 0.2s ease;
    }
    .footer-links a:hover { color: var(--accent); }
    .footer-copy {
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 0.5rem;
      padding-top: 1.5rem;
      font-size: 0.8rem;
      color: rgba(184, 198, 192, 0.7);
    }

    /* ===== Article Page ===== */
    .article-banner {
      position: relative;
      padding: 2.5rem 0 1.5rem;
      background-color: var(--bg-secondary);
      overflow: hidden;
    }
    .article-banner .banner-bg {
      position: absolute;
      inset: 0;
      background-image: url('/assets/images/backpic/back-1.png');
      background-size: cover;
      background-position: center;
      opacity: 0.18;
    }
    .article-banner .banner-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, var(--bg-secondary) 30%, rgba(240, 235, 226, 0.3) 100%);
    }
    .article-banner .banner-content {
      position: relative;
      z-index: 1;
    }
    .breadcrumb {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 0.4rem;
      font-size: 0.85rem;
      color: var(--text-muted);
    }
    .breadcrumb a {
      color: var(--text-muted);
      text-decoration: none;
      transition: color 0.2s ease;
    }
    .breadcrumb a:hover { color: var(--primary); }
    .breadcrumb .sep { color: var(--text-faint); }
    .breadcrumb .current {
      color: var(--text-main);
      font-weight: 500;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
      max-width: 280px;
    }

    .article-header {
      padding: 2.5rem 0 1.5rem;
      background: var(--bg);
    }
    .article-header .article-title {
      font-family: var(--font-serif);
      font-size: 1.8rem;
      line-height: 1.4;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 1rem;
      word-wrap: break-word;
    }
    @media (min-width: 768px) {
      .article-header .article-title { font-size: 2.2rem; }
    }
    .article-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 1rem;
      align-items: center;
      color: var(--text-muted);
      font-size: 0.85rem;
    }
    .article-meta .meta-item {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
    }
    .article-meta .meta-item svg { color: var(--text-faint); }
    .article-meta .meta-divider {
      width: 1px;
      height: 14px;
      background: var(--border-color);
    }
    .article-meta .meta-category {
      display: inline-flex;
      align-items: center;
      padding: 0.2rem 0.75rem;
      background: rgba(31, 74, 58, 0.08);
      color: var(--primary);
      border-radius: 999px;
      font-size: 0.78rem;
      font-weight: 600;
      text-decoration: none;
      transition: background 0.2s ease;
    }
    .article-meta .meta-category:hover { background: rgba(31, 74, 58, 0.14); }

    .article-body-section {
      padding: 0.5rem 0 3rem;
      background: var(--bg);
    }
    .article-content {
      max-width: 760px;
      margin: 0 auto;
      font-size: 1.0625rem;
      line-height: 1.9;
      color: var(--text-body);
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 2rem 1.5rem;
      box-shadow: var(--shadow-sm);
    }
    @media (min-width: 768px) {
      .article-content { padding: 3rem 3.5rem; }
    }
    .article-content p { margin-bottom: 1.8em; }
    .article-content h2 {
      font-family: var(--font-serif);
      font-size: 1.45rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 0.9em;
      margin-top: 1.6em;
      padding-left: 0.75rem;
      border-left: 4px solid var(--accent);
    }
    .article-content h3 {
      font-family: var(--font-serif);
      font-size: 1.2rem;
      font-weight: 600;
      color: var(--text-main);
      margin-top: 1.3em;
      margin-bottom: 0.7em;
    }
    .article-content blockquote {
      background: var(--bg-secondary);
      border-left: 4px solid var(--primary);
      padding: 1rem 1.5rem;
      border-radius: 0 var(--radius-md) var(--radius-md) 0;
      margin: 1.8em 0;
      color: var(--text-muted);
      font-size: 0.95rem;
    }
    .article-content img {
      border-radius: var(--radius-md);
      max-width: 100%;
      height: auto;
      margin: 1.5em 0;
    }
    .article-content a {
      color: var(--primary);
      text-decoration: underline;
      text-underline-offset: 2px;
      transition: color 0.2s ease;
    }
    .article-content a:hover { color: var(--accent-dark); }
    .article-content ul,
    .article-content ol {
      margin: 1em 0 1.8em;
      padding-left: 1.6em;
    }
    .article-content li { margin-bottom: 0.5em; }
    .article-content table {
      width: 100%;
      border-collapse: collapse;
      margin: 1.8em 0;
      font-size: 0.9rem;
    }
    .article-content th,
    .article-content td {
      padding: 0.7rem 1rem;
      border: 1px solid var(--border-color);
      text-align: left;
    }
    .article-content th {
      background: var(--bg-secondary);
      font-weight: 600;
    }
    .article-content code {
      background: var(--bg-secondary);
      padding: 0.2em 0.4em;
      border-radius: 4px;
      font-size: 0.85em;
      font-family: Consolas, monospace;
    }

    .article-not-found {
      text-align: center;
      padding: 3rem 1rem;
    }
    .article-not-found h2 {
      font-family: var(--font-serif);
      font-size: 1.4rem;
      color: var(--text-main);
      margin-bottom: 0.75rem;
    }
    .article-not-found p {
      color: var(--text-muted);
      margin-bottom: 1.5rem;
    }
    .btn-primary-outline {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      padding: 0.6rem 1.5rem;
      border: 1px solid var(--primary);
      color: var(--primary);
      border-radius: 999px;
      font-size: 0.875rem;
      font-weight: 500;
      text-decoration: none;
      transition: all 0.2s ease;
      background: transparent;
    }
    .btn-primary-outline:hover {
      background: var(--primary);
      color: #fff;
      box-shadow: var(--shadow-sm);
    }

    /* ===== Article Foot: Tags ===== */
    .article-foot-section {
      padding: 2rem 0;
      background: var(--bg);
      border-top: 1px solid var(--border-color);
    }
    .article-foot-inner {
      max-width: 760px;
      margin: 0 auto;
    }
    .article-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 0.5rem;
      margin-bottom: 1.5rem;
    }
    .tag-item {
      display: inline-flex;
      align-items: center;
      padding: 0.25rem 0.75rem;
      background: var(--bg-secondary);
      border: 1px solid var(--border-color);
      border-radius: 999px;
      font-size: 0.78rem;
      color: var(--text-muted);
      transition: all 0.2s ease;
    }
    .tag-item:hover {
      border-color: var(--accent);
      color: var(--primary);
      background: #fff;
    }
    .article-back-link {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      font-size: 0.85rem;
      color: var(--text-muted);
      text-decoration: none;
      transition: color 0.2s ease;
    }
    .article-back-link:hover { color: var(--primary); }

    /* ===== Related Articles ===== */
    .related-section {
      padding: 3.5rem 0;
      background: var(--bg-secondary);
    }
    .related-section .related-head {
      display: flex;
      align-items: baseline;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 0.75rem;
      margin-bottom: 2rem;
    }
    .related-section .related-head h2 {
      font-family: var(--font-serif);
      font-size: 1.5rem;
      font-weight: 700;
      color: var(--text-main);
    }
    .related-section .related-head .related-sub {
      font-size: 0.875rem;
      color: var(--text-muted);
    }
    .related-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 1.5rem;
    }
    @media (min-width: 768px) {
      .related-grid { grid-template-columns: repeat(3, 1fr); }
    }
    .related-card {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
      text-decoration: none;
      display: block;
      transition: all 0.2s ease;
    }
    .related-card:hover {
      border-color: var(--accent);
      box-shadow: var(--shadow-md);
      transform: translateY(-2px);
    }
    .related-card .card-img {
      aspect-ratio: 16/10;
      background: var(--bg-secondary);
      overflow: hidden;
      position: relative;
    }
    .related-card .card-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.3s ease;
    }
    .related-card:hover .card-img img { transform: scale(1.03); }
    .related-card .card-img .img-placeholder {
      width: 100%;
      height: 100%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--text-faint);
      font-size: 0.85rem;
      background: linear-gradient(135deg, var(--bg-secondary), #e0d8cc);
    }
    .related-card .card-body {
      padding: 1rem 1.25rem 1.25rem;
    }
    .related-card .card-cat {
      display: inline-block;
      padding: 0.15rem 0.6rem;
      background: rgba(31, 74, 58, 0.08);
      color: var(--primary);
      border-radius: 999px;
      font-size: 0.72rem;
      font-weight: 600;
      margin-bottom: 0.6rem;
    }
    .related-card .card-title {
      font-family: var(--font-serif);
      font-size: 1rem;
      font-weight: 600;
      color: var(--text-main);
      line-height: 1.5;
      margin-bottom: 0.5rem;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    .related-card:hover .card-title { color: var(--primary); }
    .related-card .card-excerpt {
      font-size: 0.82rem;
      color: var(--text-muted);
      line-height: 1.6;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    .related-card .card-link {
      display: inline-flex;
      align-items: center;
      gap: 0.3rem;
      font-size: 0.82rem;
      font-weight: 500;
      color: var(--primary);
      text-decoration: none;
      margin-top: 0.75rem;
      transition: gap 0.2s ease;
    }
    .related-card:hover .card-link { gap: 0.5rem; }

    /* ===== Article CTA ===== */
    .article-cta-section {
      background: var(--primary-dark);
      padding: 2.5rem 0;
    }
    .article-cta-inner {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 1.25rem;
      text-align: center;
    }
    @media (min-width: 768px) {
      .article-cta-inner {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
      }
    }
    .article-cta-inner .cta-text h3 {
      font-family: var(--font-serif);
      font-size: 1.35rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 0.35rem;
    }
    .article-cta-inner .cta-text p {
      font-size: 0.9rem;
      color: #B8C6C0;
    }
    .article-cta-inner .btn-cta {
      flex-shrink: 0;
      padding: 0.75rem 1.75rem;
      font-size: 0.95rem;
    }

    @media (max-width: 640px) {
      .article-header .article-title { font-size: 1.5rem; }
      .article-content { padding: 1.5rem 1rem; font-size: 1rem; line-height: 1.85; }
      .related-grid { grid-template-columns: 1fr; }
    }

/* roulang page: category2 */
:root {
      --primary: #1F4A3A;
      --primary-dark: #143328;
      --accent: #D9A441;
      --accent-light: #F5E6C4;
      --bg-cream: #FAF7F2;
      --bg-sand: #F0EBE2;
      --card-bg: #ffffff;
      --text-main: #1C2321;
      --text-body: #2E3A36;
      --text-muted: #66736D;
      --text-faint: #98A19D;
      --border-soft: #E5DFD5;
      --success: #2D7A4F;
      --warning: #C2752D;
      --danger: #C0392B;
      --info: #4A6572;
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-sm: 8px;
      --shadow-sm: 0 1px 3px rgba(31, 74, 58, 0.06);
      --shadow-md: 0 8px 30px rgba(31, 74, 58, 0.08);
      --shadow-lg: 0 20px 45px rgba(31, 74, 58, 0.12);
      --transition: 200ms ease;
      --font-serif: 'Noto Serif SC', 'Songti SC', 'Microsoft YaHei', serif;
      --font-sans: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      scroll-behavior: smooth;
      scroll-padding-top: 88px;
    }

    body {
      font-family: var(--font-sans);
      background-color: var(--bg-cream);
      color: var(--text-body);
      line-height: 1.7;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
    }

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

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

    button {
      font-family: inherit;
      cursor: pointer;
      border: none;
    }

    .container-x {
      max-width: 1280px;
      margin: 0 auto;
      padding-left: 1rem;
      padding-right: 1rem;
    }

    @media (min-width: 768px) {
      .container-x {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
      }
    }

    @media (min-width: 1024px) {
      .container-x {
        padding-left: 2rem;
        padding-right: 2rem;
      }
    }

    /* ============ Header 导航 ============ */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 100;
      height: 72px;
      background: rgba(250, 247, 242, 0.92);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border-soft);
      transition: box-shadow var(--transition);
    }

    .site-header.scrolled {
      box-shadow: 0 4px 20px rgba(31, 74, 58, 0.06);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
      gap: 1rem;
    }

    .header-logo {
      display: inline-flex;
      align-items: center;
      gap: 2px;
      font-family: var(--font-serif);
      font-size: 1.35rem;
      font-weight: 900;
      color: var(--primary);
      letter-spacing: -0.01em;
      white-space: nowrap;
    }

    .header-logo .logo-z6 {
      background: var(--accent);
      color: #fff;
      font-size: 0.72rem;
      font-weight: 700;
      border-radius: 6px;
      padding: 2px 6px;
      letter-spacing: 0.04em;
      margin-top: 2px;
    }

    .main-nav {
      display: none;
      align-items: center;
      gap: 0.3rem;
    }

    @media (min-width: 768px) {
      .main-nav {
        display: flex;
        margin-left: 1.5rem;
      }
    }

    .nav-link {
      position: relative;
      padding: 0.5rem 0.85rem;
      font-size: 0.92rem;
      font-weight: 500;
      color: var(--text-muted);
      border-radius: 8px;
      transition: color var(--transition), background var(--transition);
    }

    .nav-link:hover {
      color: var(--primary);
      background: rgba(31, 74, 58, 0.04);
    }

    .nav-link.active {
      color: var(--primary);
      font-weight: 600;
    }

    .nav-link.active::after {
      content: '';
      position: absolute;
      left: 0.85rem;
      right: 0.85rem;
      bottom: 0px;
      height: 2px;
      border-radius: 2px;
      background: var(--accent);
    }

    .header-right {
      display: flex;
      align-items: center;
      gap: 0.6rem;
      margin-left: auto;
    }

    .search-btn {
      display: inline-flex;
      align-items: center;
      gap: 0.45rem;
      background: var(--bg-sand);
      border: 1px solid transparent;
      border-radius: 999px;
      padding: 0.4rem 0.7rem;
      font-size: 0.82rem;
      color: var(--text-muted);
      transition: border-color var(--transition), box-shadow var(--transition);
    }

    .search-btn:hover {
      border-color: var(--accent);
      box-shadow: 0 0 0 3px rgba(217, 164, 65, 0.12);
    }

    .search-btn .kbd {
      display: inline-flex;
      background: #fff;
      border: 1px solid var(--border-soft);
      border-radius: 4px;
      font-size: 0.68rem;
      padding: 1px 6px;
      color: var(--text-faint);
      font-family: monospace;
    }

    .nav-login {
      display: none;
      padding: 0.45rem 0.8rem;
      font-size: 0.88rem;
      color: var(--text-body);
      font-weight: 500;
      border-radius: 999px;
      transition: background var(--transition);
    }

    @media (min-width: 640px) {
      .nav-login {
        display: inline-block;
      }
    }

    .nav-login:hover {
      background: rgba(31, 74, 58, 0.05);
      color: var(--primary);
    }

    .btn-primary-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--accent);
      color: #fff;
      font-size: 0.88rem;
      font-weight: 600;
      padding: 0.5rem 1.15rem;
      border-radius: 999px;
      transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
      white-space: nowrap;
    }

    .btn-primary-cta:hover {
      background: #e4b653;
      box-shadow: 0 6px 18px rgba(217, 164, 65, 0.35);
      transform: translateY(-1px);
    }

    .btn-primary-cta:active {
      transform: translateY(0);
      box-shadow: 0 3px 10px rgba(217, 164, 65, 0.3);
    }

    .btn-primary-cta:focus-visible {
      outline: 3px solid rgba(217, 164, 65, 0.4);
      outline-offset: 2px;
    }

    .menu-toggle {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 42px;
      height: 42px;
      border-radius: 10px;
      background: transparent;
      color: var(--primary);
      transition: background var(--transition);
    }

    @media (min-width: 768px) {
      .menu-toggle {
        display: none;
      }
    }

    .menu-toggle:hover {
      background: rgba(31, 74, 58, 0.05);
    }

    /* 移动端抽屉 */
    .mobile-drawer {
      position: fixed;
      top: 72px;
      right: 0;
      width: 280px;
      height: calc(100vh - 72px);
      background: #fff;
      border-radius: 0 0 0 20px;
      box-shadow: -10px 10px 40px rgba(31, 74, 58, 0.12);
      padding: 2rem 1.5rem;
      z-index: 99;
      transform: translateX(100%);
      transition: transform 300ms cubic-bezier(0.4, 0, 0.2, 1);
      display: flex;
      flex-direction: column;
      gap: 0.4rem;
    }

    .mobile-drawer.open {
      transform: translateX(0);
    }

    .mobile-drawer .drawer-link {
      padding: 0.8rem 0.4rem;
      font-size: 1.1rem;
      font-weight: 500;
      color: var(--text-body);
      border-bottom: 1px solid var(--border-soft);
      transition: color var(--transition), padding-left var(--transition);
    }

    .mobile-drawer .drawer-link:hover {
      color: var(--primary);
      padding-left: 0.8rem;
    }

    .mobile-drawer .drawer-link.active {
      color: var(--primary);
      font-weight: 600;
      border-left: 3px solid var(--accent);
      padding-left: 0.8rem;
    }

    .mobile-drawer .drawer-cta {
      margin-top: auto;
      text-align: center;
    }

    /* ============ Hero ============ */
    .cat-hero {
      position: relative;
      background-size: cover;
      background-position: center;
      padding: 150px 0 80px;
    }

    @media (min-width: 768px) {
      .cat-hero {
        padding: 180px 0 110px;
      }
    }

    .cat-hero-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(20, 51, 40, 0.92) 0%, rgba(31, 74, 58, 0.82) 50%, rgba(20, 51, 40, 0.68) 100%);
    }

    .cat-hero-content {
      position: relative;
      z-index: 2;
      max-width: 680px;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      background: rgba(255, 255, 255, 0.15);
      border: 1px solid rgba(255, 255, 255, 0.2);
      color: var(--accent);
      font-size: 0.82rem;
      font-weight: 500;
      padding: 0.35rem 1rem;
      border-radius: 999px;
      margin-bottom: 1.2rem;
      backdrop-filter: blur(8px);
      letter-spacing: 0.03em;
    }

    .hero-badge svg {
      width: 14px;
      height: 14px;
    }

    .cat-hero h1 {
      font-family: var(--font-serif);
      font-size: 2.3rem;
      line-height: 1.25;
      color: #fff;
      font-weight: 900;
      letter-spacing: -0.01em;
      margin-bottom: 1.2rem;
    }

    @media (min-width: 768px) {
      .cat-hero h1 {
        font-size: 3.1rem;
      }
    }

    .cat-hero p {
      font-size: 1.05rem;
      line-height: 1.8;
      color: rgba(255, 255, 255, 0.85);
      max-width: 520px;
    }

    /* ============ 内容区（目录+卡片网格） ============ */
    .cat-main {
      padding: 70px 0 50px;
      background: var(--bg-cream);
    }

    @media (min-width: 1024px) {
      .cat-main {
        padding: 90px 0 60px;
      }
    }

    .cat-layout {
      display: grid;
      grid-template-columns: 1fr;
      gap: 2.5rem;
    }

    @media (min-width: 1024px) {
      .cat-layout {
        grid-template-columns: 260px 1fr;
        gap: 3rem;
      }
    }

    .toc-box {
      position: sticky;
      top: 100px;
      background: #fff;
      border: 1px solid var(--border-soft);
      border-radius: 16px;
      padding: 1.5rem;
      box-shadow: var(--shadow-sm);
      display: none;
    }

    @media (min-width: 1024px) {
      .toc-box {
        display: block;
      }
    }

    .toc-title {
      font-size: 0.82rem;
      font-weight: 600;
      color: var(--text-faint);
      letter-spacing: 0.08em;
      text-transform: uppercase;
      margin-bottom: 1rem;
      padding-bottom: 0.8rem;
      border-bottom: 1px solid var(--border-soft);
    }

    .toc-box ul {
      list-style: none;
    }

    .toc-box ul li {
      margin-bottom: 0.2rem;
    }

    .toc-box ul li a {
      display: block;
      padding: 0.5rem 0.7rem;
      font-size: 0.92rem;
      font-weight: 500;
      color: var(--text-muted);
      border-left: 3px solid transparent;
      border-radius: 0 8px 8px 0;
      transition: color var(--transition), background var(--transition), border-color var(--transition);
    }

    .toc-box ul li a:hover {
      color: var(--accent);
      background: rgba(217, 164, 65, 0.05);
    }

    .toc-box ul li a.active {
      color: var(--primary);
      border-left-color: var(--accent);
      background: rgba(31, 74, 58, 0.04);
    }

    .cat-cards {
      display: grid;
      grid-template-columns: 1fr;
      gap: 1.5rem;
    }

    @media (min-width: 640px) {
      .cat-cards {
        grid-template-columns: 1fr 1fr;
      }
    }

    .benefit-card {
      background: #fff;
      border: 1px solid var(--border-soft);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
      display: flex;
      flex-direction: column;
      height: 100%;
    }

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

    .benefit-card .card-thumb {
      position: relative;
      aspect-ratio: 4/3;
      overflow: hidden;
      background: var(--bg-sand);
    }

    .benefit-card .card-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 400ms ease;
    }

    .benefit-card:hover .card-thumb img {
      transform: scale(1.05);
    }

    .benefit-card .card-tag {
      position: absolute;
      top: 12px;
      left: 12px;
      display: inline-flex;
      background: rgba(255, 255, 255, 0.9);
      backdrop-filter: blur(6px);
      color: var(--primary);
      font-size: 0.72rem;
      font-weight: 600;
      padding: 0.25rem 0.75rem;
      border-radius: 999px;
      letter-spacing: 0.02em;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    }

    .benefit-card .card-body {
      padding: 1.4rem 1.4rem 1.5rem;
      display: flex;
      flex-direction: column;
      flex: 1;
    }

    .benefit-card .card-body h3 {
      font-family: var(--font-serif);
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 0.55rem;
      line-height: 1.4;
    }

    .benefit-card .card-body p {
      font-size: 0.9rem;
      line-height: 1.7;
      color: var(--text-muted);
      margin-bottom: 1.2rem;
      display: -webkit-box;
      -webkit-line-clamp: 3;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .benefit-card .card-link {
      margin-top: auto;
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--primary);
      transition: color var(--transition), gap var(--transition);
    }

    .benefit-card .card-link:hover {
      color: var(--accent);
      gap: 0.65rem;
    }

    .benefit-card .card-link svg {
      width: 14px;
      height: 14px;
    }

    /* ============ 对比区 ============ */
    .compare-sec {
      padding: 70px 0;
      background: #fff;
    }

    @media (min-width: 768px) {
      .compare-sec {
        padding: 90px 0;
      }
    }

    .sec-header {
      text-align: center;
      max-width: 680px;
      margin: 0 auto 3rem;
    }

    .sec-header h2 {
      font-family: var(--font-serif);
      font-size: 2rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 0.8rem;
      line-height: 1.3;
    }

    @media (min-width: 768px) {
      .sec-header h2 {
        font-size: 2.4rem;
      }
    }

    .sec-header p {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.8;
    }

    .tier-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 1.5rem;
    }

    @media (min-width: 768px) {
      .tier-grid {
        grid-template-columns: repeat(3, 1fr);
        align-items: stretch;
      }
    }

    .tier-card {
      background: var(--bg-cream);
      border: 1px solid var(--border-soft);
      border-radius: var(--radius-lg);
      padding: 2rem 1.6rem;
      position: relative;
      display: flex;
      flex-direction: column;
      transition: box-shadow var(--transition), transform var(--transition);
    }

    .tier-card:hover {
      box-shadow: var(--shadow-md);
    }

    .tier-card.recommended {
      background: #fff;
      border: 2px solid var(--accent);
      box-shadow: var(--shadow-lg);
    }

    @media (min-width: 768px) {
      .tier-card.recommended {
        transform: translateY(-10px);
      }
    }

    .tier-card .tier-badge {
      position: absolute;
      top: -10px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--accent);
      color: #fff;
      font-size: 0.72rem;
      font-weight: 600;
      padding: 0.25rem 1rem;
      border-radius: 999px;
      letter-spacing: 0.05em;
      white-space: nowrap;
    }

    .tier-card .tier-name {
      font-family: var(--font-serif);
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 0.4rem;
    }

    .tier-card .tier-price {
      font-size: 0.92rem;
      color: var(--text-muted);
      margin-bottom: 1.5rem;
    }

    .tier-card .tier-price .price {
      font-size: 1.8rem;
      font-weight: 700;
      color: var(--primary);
      font-family: var(--font-serif);
    }

    .tier-card .tier-list {
      list-style: none;
      flex: 1;
      margin: 0 0 1.5rem;
    }

    .tier-card .tier-list li {
      display: flex;
      align-items: flex-start;
      gap: 0.6rem;
      padding: 0.45rem 0;
      font-size: 0.88rem;
      color: var(--text-body);
      line-height: 1.5;
      border-bottom: 1px dashed var(--border-soft);
    }

    .tier-card .tier-list li:last-child {
      border-bottom: none;
    }

    .tier-card .tier-list .check {
      color: var(--success);
      flex-shrink: 0;
      margin-top: 2px;
    }

    .tier-card .tier-list .cross {
      color: var(--text-faint);
      flex-shrink: 0;
      margin-top: 2px;
    }

    .tier-card .tier-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 100%;
      padding: 0.65rem 1rem;
      border-radius: 999px;
      font-size: 0.9rem;
      font-weight: 600;
      transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
    }

    .tier-btn-outline {
      border: 1.5px solid var(--primary);
      color: var(--primary);
      background: transparent;
    }

    .tier-btn-outline:hover {
      background: rgba(31, 74, 58, 0.05);
    }

    .tier-btn-solid {
      background: var(--accent);
      color: #fff;
    }

    .tier-btn-solid:hover {
      background: #e4b653;
      box-shadow: 0 6px 18px rgba(217, 164, 65, 0.35);
      transform: translateY(-1px);
    }

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

    .tier-btn-solid:focus-visible,
    .tier-btn-outline:focus-visible {
      outline: 3px solid rgba(217, 164, 65, 0.4);
      outline-offset: 2px;
    }

    /* ============ FAQ ============ */
    .faq-sec {
      padding: 70px 0;
      background: var(--bg-sand);
    }

    @media (min-width: 768px) {
      .faq-sec {
        padding: 90px 0;
      }
    }

    .faq-wrap {
      max-width: 860px;
      margin: 0 auto;
    }

    .accordion-item {
      background: #fff;
      border: 1px solid var(--border-soft);
      border-radius: var(--radius-md);
      margin-bottom: 0.9rem;
      overflow: hidden;
      transition: border-color var(--transition), box-shadow var(--transition);
    }

    .accordion-item.open {
      border-color: var(--accent);
      box-shadow: var(--shadow-sm);
    }

    .accordion-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 1.1rem 1.4rem;
      cursor: pointer;
      transition: background var(--transition);
      font-weight: 600;
      font-size: 0.98rem;
      color: var(--text-main);
      border: none;
      background: transparent;
      width: 100%;
      text-align: left;
    }

    .accordion-header:hover {
      background: rgba(31, 74, 58, 0.02);
    }

    .accordion-header .acc-icon {
      flex-shrink: 0;
      width: 28px;
      height: 28px;
      border-radius: 999px;
      background: var(--bg-cream);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 1rem;
      color: var(--primary);
      transition: transform 300ms ease, background var(--transition);
      margin-left: 1rem;
    }

    .accordion-item.open .accordion-header .acc-icon {
      transform: rotate(45deg);
      background: var(--accent);
      color: #fff;
    }

    .accordion-body {
      max-height: 0;
      overflow: hidden;
      transition: max-height 300ms ease;
    }

    .accordion-body-inner {
      padding: 0 1.4rem 1.2rem;
      font-size: 0.92rem;
      line-height: 1.8;
      color: var(--text-muted);
      border-left: 3px solid var(--accent);
      margin-left: 1.4rem;
      margin-right: 1.4rem;
      margin-bottom: 0.8rem;
      border-radius: 0 0 4px 4px;
    }

    /* ============ CTA ============ */
    .cta-sec {
      padding: 70px 0;
      background: var(--primary-dark);
      position: relative;
      overflow: hidden;
    }

    @media (min-width: 768px) {
      .cta-sec {
        padding: 90px 0;
      }
    }

    .cta-sec::before {
      content: '';
      position: absolute;
      top: -120px;
      right: -120px;
      width: 360px;
      height: 360px;
      border-radius: 50%;
      background: rgba(217, 164, 65, 0.12);
      filter: blur(60px);
    }

    .cta-inner {
      position: relative;
      z-index: 2;
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      gap: 1.5rem;
    }

    @media (min-width: 768px) {
      .cta-inner {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
      }
    }

    .cta-copy h2 {
      font-family: var(--font-serif);
      font-size: 1.9rem;
      font-weight: 800;
      color: #fff;
      margin-bottom: 0.6rem;
      line-height: 1.35;
    }

    @media (min-width: 768px) {
      .cta-copy h2 {
        font-size: 2.3rem;
      }
    }

    .cta-copy p {
      font-size: 1rem;
      color: rgba(255, 255, 255, 0.75);
      line-height: 1.7;
      max-width: 520px;
    }

    .cta-action {
      flex-shrink: 0;
      display: flex;
      flex-direction: column;
      gap: 0.8rem;
      align-items: center;
    }

    .btn-accent-lg {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      background: var(--accent);
      color: #fff;
      font-size: 1rem;
      font-weight: 700;
      padding: 0.85rem 2.2rem;
      border-radius: 999px;
      transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
      white-space: nowrap;
    }

    .btn-accent-lg:hover {
      background: #e4b653;
      box-shadow: 0 8px 25px rgba(217, 164, 65, 0.4);
      transform: translateY(-2px);
    }

    .btn-accent-lg:active {
      transform: translateY(0);
      box-shadow: 0 4px 12px rgba(217, 164, 65, 0.3);
    }

    .cta-note {
      font-size: 0.82rem;
      color: rgba(255, 255, 255, 0.55);
    }

    /* ============ Footer ============ */
    .site-footer {
      background: var(--primary-dark);
      padding: 60px 0 0;
      color: #B8C6C0;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 2.5rem;
      padding-bottom: 2.5rem;
      border-bottom: 1px solid rgba(250, 247, 242, 0.15);
    }

    @media (min-width: 640px) {
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (min-width: 1024px) {
      .footer-grid {
        grid-template-columns: 2fr 1fr 1fr 1fr;
        gap: 3rem;
      }
    }

    .footer-logo {
      display: inline-flex;
      align-items: center;
      gap: 2px;
      font-family: var(--font-serif);
      font-size: 1.5rem;
      font-weight: 900;
      color: #fff;
      letter-spacing: -0.01em;
      margin-bottom: 0.8rem;
    }

    .footer-logo .logo-z6 {
      background: var(--accent);
      color: #fff;
      font-size: 0.72rem;
      font-weight: 700;
      border-radius: 6px;
      padding: 2px 6px;
      margin-top: 2px;
    }

    .footer-tagline {
      font-size: 0.9rem;
      line-height: 1.7;
      color: rgba(255, 255, 255, 0.7);
      margin-bottom: 1.2rem;
      max-width: 300px;
    }

    .footer-social {
      display: flex;
      gap: 0.6rem;
    }

    .footer-social a {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 36px;
      height: 36px;
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.08);
      color: #B8C6C0;
      transition: background var(--transition), color var(--transition), transform var(--transition);
    }

    .footer-social a:hover {
      background: var(--accent);
      color: #fff;
      transform: translateY(-2px);
    }

    .footer-title {
      font-size: 0.95rem;
      font-weight: 600;
      color: #fff;
      margin-bottom: 1rem;
      letter-spacing: 0.02em;
    }

    .footer-links {
      list-style: none;
    }

    .footer-links li {
      margin-bottom: 0.5rem;
    }

    .footer-links a {
      font-size: 0.88rem;
      color: #B8C6C0;
      transition: color var(--transition), padding-left var(--transition);
    }

    .footer-links a:hover {
      color: var(--accent);
      padding-left: 4px;
    }

    .footer-copy {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 0.5rem;
      padding: 1.5rem 0;
      font-size: 0.82rem;
      color: rgba(255, 255, 255, 0.45);
    }

    .footer-copy a {
      color: rgba(255, 255, 255, 0.55);
      transition: color var(--transition);
    }

    .footer-copy a:hover {
      color: var(--accent);
    }

    /* ============ 移动端响应式细节 ============ */
    @media (max-width: 640px) {
      .cat-hero h1 {
        font-size: 1.9rem;
      }

      .cat-hero p {
        font-size: 0.95rem;
      }

      .cat-cards {
        grid-template-columns: 1fr;
      }

      .sec-header h2 {
        font-size: 1.7rem;
      }

      .cta-copy h2 {
        font-size: 1.6rem;
      }

      .btn-primary-cta span {
        display: none;
      }

      .footer-copy {
        flex-direction: column;
        text-align: center;
      }
    }

    @media (pointer: coarse) {
      .search-btn {
        display: inline-flex;
      }
      .search-btn .kbd {
        display: none;
      }
    }