/* roulang page: index */
:root {
      --color-primary: #2563eb;
      --color-primary-dark: #1d4ed8;
      --color-primary-soft: #dbeafe;
      --color-accent: #06b6d4;
      --color-accent-soft: #cffafe;
      --color-bg: #f6f9fc;
      --color-bg-2: #f8faff;
      --color-card: #ffffff;
      --color-text: #0f172a;
      --color-muted: #475569;
      --color-light: #64748b;
      --color-border: #e2e8f0;
      --color-border-blue: #bfdbfe;
      --shadow-sm: 0 8px 22px rgba(15, 23, 42, 0.06);
      --shadow-md: 0 12px 32px rgba(15, 23, 42, 0.08);
      --shadow-lg: 0 18px 44px rgba(37, 99, 235, 0.14);
      --radius-xs: 10px;
      --radius-sm: 14px;
      --radius-md: 18px;
      --radius-lg: 24px;
      --radius-xl: 32px;
      --container: 1220px;
      --font-main: system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      --transition: 180ms ease;
      --nav-height: 116px;
    }

    * {
      box-sizing: border-box;
    }

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

    body {
      margin: 0;
      font-family: var(--font-main);
      color: var(--color-text);
      background:
        radial-gradient(circle at 12% 8%, rgba(37, 99, 235, 0.10), transparent 32%),
        radial-gradient(circle at 88% 0%, rgba(6, 182, 212, 0.10), transparent 26%),
        linear-gradient(180deg, #ffffff 0%, var(--color-bg) 46%, #ffffff 100%);
      line-height: 1.75;
      min-width: 320px;
      padding-bottom: 92px;
    }

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

    a:hover,
    a:focus {
      color: var(--color-primary);
      outline: none;
    }

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

    button,
    input,
    textarea {
      font: inherit;
    }

    button {
      cursor: pointer;
    }

    input,
    textarea {
      width: 100%;
      border: 1px solid var(--color-border);
      background: #ffffff;
      border-radius: var(--radius-sm);
      color: var(--color-text);
      transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
    }

    input:focus,
    textarea:focus {
      outline: none;
      border-color: var(--color-primary);
      box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
      background: #ffffff;
    }

    section {
      position: relative;
    }

    h1,
    h2,
    h3,
    h4,
    p {
      margin-top: 0;
    }

    h1 {
      font-size: clamp(2rem, 5vw, 3.5rem);
      line-height: 1.12;
      letter-spacing: -0.04em;
      margin-bottom: 20px;
      color: var(--color-text);
      font-weight: 850;
    }

    h2 {
      font-size: clamp(1.75rem, 3.3vw, 2.35rem);
      line-height: 1.22;
      letter-spacing: -0.03em;
      margin-bottom: 16px;
      font-weight: 820;
      color: var(--color-text);
    }

    h3 {
      font-size: 1.25rem;
      line-height: 1.35;
      margin-bottom: 10px;
      font-weight: 760;
    }

    p {
      color: var(--color-muted);
      font-size: 1rem;
    }

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

    .section-pad {
      padding: 82px 0;
    }

    .section-pad-sm {
      padding: 58px 0;
    }

    .section-heading {
      display: flex;
      justify-content: space-between;
      align-items: flex-end;
      gap: 24px;
      margin-bottom: 30px;
    }

    .section-heading .intro {
      max-width: 680px;
      margin-bottom: 0;
      font-size: 1.05rem;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      border-radius: 999px;
      background: var(--color-primary-soft);
      color: var(--color-primary-dark);
      font-size: 0.86rem;
      font-weight: 740;
      margin-bottom: 14px;
      border: 1px solid rgba(37, 99, 235, 0.12);
    }

    .eyebrow::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 999px;
      background: var(--color-accent);
      box-shadow: 0 0 0 5px rgba(6, 182, 212, 0.16);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 48px;
      padding: 0 20px;
      border-radius: 999px;
      border: 1px solid transparent;
      font-weight: 760;
      letter-spacing: -0.01em;
      line-height: 1;
      white-space: nowrap;
      transition: transform var(--transition), box-shadow var(--transition), color var(--transition), background var(--transition), border-color var(--transition);
    }

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

    .btn:focus {
      outline: 3px solid rgba(37, 99, 235, 0.22);
      outline-offset: 3px;
    }

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

    .btn-primary {
      background: var(--color-primary);
      color: #ffffff;
      box-shadow: 0 12px 28px rgba(37, 99, 235, 0.25);
    }

    .btn-primary:hover,
    .btn-primary:focus {
      background: var(--color-primary-dark);
      color: #ffffff;
      box-shadow: 0 18px 38px rgba(37, 99, 235, 0.30);
    }

    .btn-secondary {
      background: #ffffff;
      color: var(--color-primary-dark);
      border-color: var(--color-border-blue);
      box-shadow: var(--shadow-sm);
    }

    .btn-secondary:hover,
    .btn-secondary:focus {
      background: #eff6ff;
      border-color: #93c5fd;
      color: var(--color-primary-dark);
      box-shadow: var(--shadow-md);
    }

    .btn-ghost {
      background: rgba(37, 99, 235, 0.08);
      color: var(--color-primary-dark);
      border-color: transparent;
    }

    .btn-ghost:hover {
      background: rgba(37, 99, 235, 0.13);
    }

    .btn-small {
      min-height: 38px;
      padding: 0 14px;
      font-size: 0.9rem;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      border-radius: 999px;
      padding: 6px 10px;
      background: #f1f5f9;
      color: var(--color-muted);
      font-size: 0.84rem;
      font-weight: 700;
      line-height: 1;
      border: 1px solid var(--color-border);
    }

    .badge-blue {
      background: var(--color-primary-soft);
      color: var(--color-primary-dark);
      border-color: #bfdbfe;
    }

    .badge-cyan {
      background: var(--color-accent-soft);
      color: #0e7490;
      border-color: #a5f3fc;
    }

    .badge-hot {
      background: #fff7ed;
      color: #c2410c;
      border-color: #fed7aa;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.88);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(226, 232, 240, 0.86);
      box-shadow: 0 6px 22px rgba(15, 23, 42, 0.04);
    }

    .brand-row {
      min-height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding: 12px 0;
    }

    .brand-link {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: fit-content;
    }

    .logo-mark {
      width: 42px;
      height: 42px;
      border-radius: 14px;
      background:
        linear-gradient(135deg, rgba(37, 99, 235, 0.95), rgba(6, 182, 212, 0.95)),
        #2563eb;
      display: grid;
      place-items: center;
      color: #ffffff;
      font-weight: 900;
      box-shadow: 0 12px 24px rgba(37, 99, 235, 0.24);
      letter-spacing: -0.04em;
    }

    .brand-text {
      display: flex;
      flex-direction: column;
      line-height: 1.15;
    }

    .brand-name {
      color: var(--color-text);
      font-size: 1rem;
      font-weight: 840;
      letter-spacing: -0.02em;
    }

    .brand-sub {
      color: var(--color-light);
      font-size: 0.78rem;
      margin-top: 4px;
    }

    .search-wrap {
      flex: 1 1 480px;
      max-width: 560px;
      display: flex;
      align-items: center;
      background: #f8fafc;
      border: 1px solid var(--color-border);
      border-radius: 999px;
      padding: 6px;
      transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
    }

    .search-wrap:focus-within {
      background: #ffffff;
      border-color: #93c5fd;
      box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.10);
    }

    .search-wrap input {
      border: 0;
      box-shadow: none;
      background: transparent;
      min-height: 38px;
      padding: 0 14px;
    }

    .search-wrap input:focus {
      box-shadow: none;
      background: transparent;
    }

    .search-wrap button {
      border: 0;
      border-radius: 999px;
      min-width: 78px;
      height: 38px;
      background: var(--color-primary);
      color: #ffffff;
      font-weight: 760;
      transition: background var(--transition), transform var(--transition);
    }

    .search-wrap button:hover {
      background: var(--color-primary-dark);
      transform: translateY(-1px);
    }

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

    .trend-pills {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .title-bar {
      display: none;
      background: transparent;
      color: var(--color-text);
      padding: 0;
    }

    .menu-icon::after {
      background: var(--color-primary);
      box-shadow: 0 7px 0 var(--color-primary), 0 14px 0 var(--color-primary);
    }

    .channel-row {
      border-top: 1px solid rgba(226, 232, 240, 0.78);
      min-height: 44px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      padding: 8px 0;
    }

    .channel-menu {
      display: flex;
      align-items: center;
      gap: 8px;
      margin: 0;
      list-style: none;
      overflow-x: auto;
      scrollbar-width: none;
    }

    .channel-menu::-webkit-scrollbar {
      display: none;
    }

    .channel-menu a {
      display: inline-flex;
      align-items: center;
      min-height: 32px;
      padding: 0 13px;
      border-radius: 999px;
      color: var(--color-muted);
      font-size: 0.92rem;
      font-weight: 730;
      border: 1px solid transparent;
      white-space: nowrap;
    }

    .channel-menu a:hover,
    .channel-menu a.active {
      color: var(--color-primary-dark);
      background: #eff6ff;
      border-color: #bfdbfe;
    }

    .channel-note {
      color: var(--color-light);
      font-size: 0.86rem;
      white-space: nowrap;
    }

    .hero {
      padding: 54px 0 74px;
      overflow: hidden;
    }

    .hero::before {
      content: "";
      position: absolute;
      inset: 18px 0 auto 0;
      height: 420px;
      pointer-events: none;
      background-image:
        linear-gradient(rgba(37, 99, 235, 0.055) 1px, transparent 1px),
        linear-gradient(90deg, rgba(37, 99, 235, 0.055) 1px, transparent 1px);
      background-size: 34px 34px;
      mask-image: linear-gradient(180deg, #000 0%, transparent 85%);
      opacity: 0.9;
    }

    .hero-board {
      position: relative;
      overflow: hidden;
      border: 1px solid rgba(191, 219, 254, 0.92);
      border-radius: 34px;
      background:
        radial-gradient(circle at 14% 22%, rgba(6, 182, 212, 0.15), transparent 24%),
        radial-gradient(circle at 86% 18%, rgba(37, 99, 235, 0.15), transparent 24%),
        linear-gradient(135deg, #ffffff 0%, #f8fbff 52%, #eff6ff 100%);
      box-shadow: 0 26px 70px rgba(37, 99, 235, 0.13);
      padding: clamp(28px, 6vw, 62px);
    }

    .hero-board::after {
      content: "";
      position: absolute;
      width: 220px;
      height: 220px;
      right: -70px;
      bottom: -70px;
      border-radius: 999px;
      background: rgba(6, 182, 212, 0.12);
      border: 34px solid rgba(37, 99, 235, 0.09);
    }

    .hero-topline {
      display: flex;
      justify-content: center;
      flex-wrap: wrap;
      gap: 10px;
      margin-bottom: 22px;
    }

    .burst-badge {
      position: absolute;
      top: 26px;
      right: 28px;
      z-index: 2;
      display: inline-flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      width: 106px;
      height: 106px;
      color: #ffffff;
      text-align: center;
      font-weight: 900;
      line-height: 1.12;
      transform: rotate(8deg);
      background: var(--color-primary);
      clip-path: polygon(50% 0%, 60% 18%, 79% 9%, 82% 31%, 100% 39%, 87% 55%, 96% 75%, 73% 77%, 64% 98%, 48% 84%, 30% 99%, 25% 77%, 2% 73%, 15% 55%, 0% 39%, 20% 31%, 21% 8%, 40% 18%);
      box-shadow: 0 18px 32px rgba(37, 99, 235, 0.25);
    }

    .burst-badge small {
      font-size: 0.68rem;
      font-weight: 800;
      opacity: 0.92;
    }

    .hero-content {
      position: relative;
      z-index: 1;
      text-align: center;
      max-width: 890px;
      margin: 0 auto;
      padding-right: 84px;
      padding-left: 84px;
    }

    .hero-desc {
      margin: 0 auto 26px;
      max-width: 770px;
      font-size: clamp(1.03rem, 2vw, 1.18rem);
      color: var(--color-muted);
    }

    .hero-cta {
      display: flex;
      justify-content: center;
      flex-wrap: wrap;
      gap: 12px;
      margin-bottom: 24px;
    }

    .hero-countdown {
      margin: 0 auto 24px;
      max-width: 680px;
      border: 1px solid rgba(191, 219, 254, 0.98);
      border-radius: 20px;
      background: rgba(255, 255, 255, 0.76);
      box-shadow: var(--shadow-sm);
      padding: 12px 14px;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 12px;
      flex-wrap: wrap;
    }

    .count-label {
      color: var(--color-primary-dark);
      font-weight: 800;
      font-size: 0.95rem;
    }

    .count-time {
      display: inline-flex;
      gap: 6px;
      align-items: center;
      font-variant-numeric: tabular-nums;
    }

    .count-time span {
      display: inline-grid;
      place-items: center;
      min-width: 36px;
      height: 32px;
      padding: 0 7px;
      border-radius: 10px;
      background: #0f172a;
      color: #ffffff;
      font-weight: 860;
      line-height: 1;
    }

    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 12px;
      max-width: 780px;
      margin: 0 auto;
    }

    .metric-tile {
      background: rgba(255, 255, 255, 0.78);
      border: 1px solid rgba(226, 232, 240, 0.92);
      border-radius: 18px;
      padding: 15px;
      box-shadow: 0 10px 24px rgba(15, 23, 42, 0.05);
      text-align: left;
    }

    .metric-tile strong {
      display: block;
      color: var(--color-text);
      font-size: 1.05rem;
      margin-bottom: 3px;
    }

    .metric-tile span {
      color: var(--color-light);
      font-size: 0.88rem;
    }

    .hero-index {
      position: relative;
      z-index: 1;
      margin-top: 28px;
      display: grid;
      grid-template-columns: 1.2fr 0.9fr 1fr;
      gap: 14px;
    }

    .index-card {
      background: rgba(255, 255, 255, 0.86);
      border: 1px solid rgba(191, 219, 254, 0.88);
      border-radius: 20px;
      padding: 18px;
      box-shadow: var(--shadow-sm);
    }

    .index-card h3 {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 10px;
      font-size: 1.05rem;
    }

    .mini-list {
      margin: 0;
      padding: 0;
      list-style: none;
      display: grid;
      gap: 10px;
    }

    .mini-list li {
      display: flex;
      gap: 10px;
      align-items: flex-start;
      color: var(--color-muted);
      font-size: 0.94rem;
    }

    .mini-list li::before {
      content: "";
      flex: 0 0 8px;
      width: 8px;
      height: 8px;
      margin-top: 9px;
      border-radius: 999px;
      background: var(--color-accent);
      box-shadow: 0 0 0 4px rgba(6, 182, 212, 0.12);
    }

    .highlight-strip {
      background: #ffffff;
      border-top: 1px solid var(--color-border);
      border-bottom: 1px solid var(--color-border);
      padding: 18px 0;
    }

    .guarantee-row {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 12px;
    }

    .guarantee-item {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 15px;
      border-radius: 18px;
      background: #f8fafc;
      border: 1px solid var(--color-border);
    }

    .guarantee-icon {
      width: 42px;
      height: 42px;
      border-radius: 14px;
      display: grid;
      place-items: center;
      background: var(--color-primary-soft);
      color: var(--color-primary-dark);
      font-weight: 900;
      flex: 0 0 auto;
    }

    .guarantee-item strong {
      display: block;
      line-height: 1.2;
      margin-bottom: 4px;
    }

    .guarantee-item span {
      display: block;
      color: var(--color-light);
      font-size: 0.87rem;
      line-height: 1.35;
    }

    .feature-section {
      background: transparent;
    }

    .feature-lane {
      display: grid;
      grid-template-columns: 0.9fr 1.2fr 0.9fr;
      gap: 18px;
      align-items: stretch;
    }

    .feature-card {
      position: relative;
      min-height: 248px;
      background: #ffffff;
      border: 1px solid var(--color-border);
      border-radius: 24px;
      padding: 24px;
      box-shadow: var(--shadow-md);
      overflow: hidden;
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    }

    .feature-card:hover {
      transform: translateY(-4px);
      border-color: #93c5fd;
      box-shadow: var(--shadow-lg);
    }

    .feature-card.large {
      min-height: 296px;
      background:
        linear-gradient(180deg, rgba(219, 234, 254, 0.42), transparent 48%),
        #ffffff;
    }

    .feature-card::after {
      content: attr(data-no);
      position: absolute;
      right: 22px;
      bottom: 10px;
      font-size: 4.5rem;
      line-height: 1;
      font-weight: 900;
      color: rgba(37, 99, 235, 0.07);
      letter-spacing: -0.08em;
    }

    .feature-card .tagline {
      display: inline-flex;
      margin-bottom: 16px;
    }

    .feature-card p {
      margin-bottom: 0;
    }

    .time-grid {
      display: grid;
      grid-template-columns: 1.05fr 1fr 1fr;
      gap: 18px;
    }

    .time-card {
      background: #ffffff;
      border: 1px solid var(--color-border);
      border-radius: 24px;
      padding: 22px;
      box-shadow: var(--shadow-sm);
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    }

    .time-card:hover {
      transform: translateY(-3px);
      border-color: #93c5fd;
      box-shadow: var(--shadow-md);
    }

    .time-card.featured {
      background:
        radial-gradient(circle at 90% 10%, rgba(6, 182, 212, 0.13), transparent 30%),
        linear-gradient(135deg, #eff6ff, #ffffff 62%);
      border-color: #bfdbfe;
    }

    .time-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 14px;
      color: var(--color-primary-dark);
      font-weight: 840;
    }

    .progress {
      height: 9px;
      background: #e2e8f0;
      border-radius: 999px;
      overflow: hidden;
      margin: 18px 0 12px;
    }

    .progress-meter {
      display: block;
      height: 100%;
      border-radius: 999px;
      background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    }

    .time-card ul {
      margin: 14px 0 0;
      padding-left: 20px;
      color: var(--color-muted);
    }

    .time-card li {
      margin-bottom: 8px;
    }

    .news-section {
      background:
        linear-gradient(180deg, rgba(239, 246, 255, 0.62), rgba(255, 255, 255, 0.20)),
        transparent;
    }

    .news-layout {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 330px;
      gap: 22px;
      align-items: start;
    }

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

    .news-card {
      display: flex;
      flex-direction: column;
      min-height: 220px;
      padding: 20px;
      border-radius: 22px;
      background: #ffffff;
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-sm);
      color: inherit;
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    }

    .news-card:hover,
    .news-card:focus {
      transform: translateY(-3px);
      border-color: #93c5fd;
      box-shadow: var(--shadow-lg);
      color: inherit;
    }

    .news-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      align-items: center;
      margin-bottom: 14px;
    }

    .news-title {
      font-size: 1.16rem;
      line-height: 1.4;
      margin-bottom: 10px;
      color: var(--color-text);
      font-weight: 820;
    }

    .news-summary {
      color: var(--color-muted);
      font-size: 0.96rem;
      line-height: 1.7;
      margin-bottom: 18px;
      display: -webkit-box;
      -webkit-line-clamp: 3;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .news-link {
      margin-top: auto;
      display: inline-flex;
      color: var(--color-primary-dark);
      font-weight: 800;
      align-items: center;
      gap: 6px;
    }

    .news-link::after {
      content: "→";
      transition: transform var(--transition);
    }

    .news-card:hover .news-link::after {
      transform: translateX(4px);
    }

    .news-side {
      position: sticky;
      top: calc(var(--nav-height) + 20px);
      display: grid;
      gap: 14px;
    }

    .side-card {
      background: #ffffff;
      border: 1px solid var(--color-border);
      border-radius: 22px;
      padding: 20px;
      box-shadow: var(--shadow-sm);
    }

    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 9px;
      margin-top: 14px;
    }

    .empty-state {
      grid-column: 1 / -1;
      min-height: 180px;
      display: grid;
      place-items: center;
      text-align: center;
      border: 1px dashed #93c5fd;
      border-radius: 24px;
      background: rgba(239, 246, 255, 0.70);
      color: var(--color-primary-dark);
      font-weight: 780;
      padding: 30px;
    }

    .form-section {
      padding-top: 74px;
    }

    .lead-panel {
      overflow: hidden;
      border-radius: 30px;
      background:
        radial-gradient(circle at 8% 8%, rgba(6, 182, 212, 0.15), transparent 28%),
        linear-gradient(135deg, #ffffff 0%, #eff6ff 100%);
      border: 1px solid #bfdbfe;
      box-shadow: 0 22px 60px rgba(37, 99, 235, 0.12);
    }

    .lead-copy {
      padding: clamp(26px, 5vw, 46px);
    }

    .lead-form-wrap {
      background: rgba(255, 255, 255, 0.78);
      border-left: 1px solid #bfdbfe;
      height: 100%;
      padding: clamp(24px, 4vw, 36px);
    }

    .form-grid {
      display: grid;
      gap: 14px;
    }

    .field-label {
      display: block;
      color: var(--color-text);
      font-weight: 760;
      margin-bottom: 7px;
      font-size: 0.94rem;
    }

    .field-control {
      min-height: 48px;
      padding: 0 14px;
    }

    textarea.field-control {
      min-height: 108px;
      resize: vertical;
      padding-top: 12px;
    }

    .form-tip {
      color: var(--color-light);
      font-size: 0.88rem;
      margin: 4px 0 0;
    }

    .form-message {
      display: none;
      margin-top: 12px;
      padding: 12px 14px;
      border-radius: 14px;
      background: #ecfeff;
      border: 1px solid #a5f3fc;
      color: #0e7490;
      font-weight: 730;
    }

    .proof-section {
      background: #ffffff;
    }

    .bubble-wall {
      display: grid;
      grid-template-columns: 1fr 1.15fr 0.95fr;
      gap: 16px;
      align-items: start;
    }

    .quote-bubble {
      position: relative;
      border: 1px solid var(--color-border);
      border-radius: 24px;
      background: #ffffff;
      box-shadow: var(--shadow-sm);
      padding: 22px;
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    }

    .quote-bubble:hover {
      transform: translateY(-3px);
      border-color: #93c5fd;
      box-shadow: var(--shadow-md);
    }

    .quote-bubble p {
      margin-bottom: 16px;
      color: var(--color-muted);
    }

    .quote-person {
      display: flex;
      align-items: center;
      gap: 10px;
      color: var(--color-text);
      font-weight: 760;
    }

    .avatar {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: linear-gradient(135deg, #dbeafe, #cffafe);
      display: grid;
      place-items: center;
      color: var(--color-primary-dark);
      font-size: 0.9rem;
      font-weight: 900;
      border: 1px solid #bfdbfe;
    }

    .faq-section {
      background:
        linear-gradient(180deg, #ffffff 0%, #f8faff 100%);
    }

    .accordion {
      background: transparent;
    }

    .accordion-item {
      border: 1px solid var(--color-border);
      border-radius: 18px;
      background: #ffffff;
      margin-bottom: 12px;
      overflow: hidden;
      box-shadow: 0 8px 20px rgba(15, 23, 42, 0.04);
    }

    .accordion-title {
      border: 0;
      color: var(--color-text);
      font-size: 1.04rem;
      font-weight: 800;
      padding: 18px 52px 18px 22px;
      background: #ffffff;
    }

    .accordion-title:hover,
    .accordion-title:focus {
      background: #eff6ff;
      color: var(--color-primary-dark);
    }

    .accordion-title::before {
      color: var(--color-primary);
      font-weight: 900;
      margin-top: -0.55rem;
    }

    .accordion-content {
      border: 0;
      border-top: 1px solid var(--color-border);
      color: var(--color-muted);
      line-height: 1.8;
      padding: 18px 22px;
      background: #fbfdff;
    }

    .faq-grid {
      display: grid;
      grid-template-columns: 0.82fr 1.18fr;
      gap: 28px;
      align-items: start;
    }

    .quick-card {
      border-radius: 24px;
      border: 1px solid #bfdbfe;
      background: linear-gradient(135deg, #eff6ff, #ffffff);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }

    .cta-section {
      padding: 0 0 76px;
    }

    .bottom-cta {
      border-radius: 30px;
      background:
        radial-gradient(circle at 80% 20%, rgba(6, 182, 212, 0.18), transparent 24%),
        linear-gradient(135deg, #eff6ff 0%, #ffffff 56%, #e0f2fe 100%);
      border: 1px solid #bfdbfe;
      box-shadow: 0 22px 60px rgba(37, 99, 235, 0.12);
      padding: clamp(28px, 5vw, 48px);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }

    .bottom-cta p {
      max-width: 680px;
      margin-bottom: 0;
    }

    .site-footer {
      background: #0f172a;
      color: #dbeafe;
      padding: 54px 0 34px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr 0.8fr;
      gap: 28px;
      align-items: start;
    }

    .footer-brand {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }

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

    .footer-title {
      color: #ffffff;
      font-weight: 850;
      line-height: 1.2;
    }

    .footer-text {
      color: #cbd5e1;
      max-width: 560px;
      margin-bottom: 0;
    }

    .footer-links {
      list-style: none;
      padding: 0;
      margin: 10px 0 0;
      display: grid;
      gap: 9px;
    }

    .footer-links a {
      color: #cbd5e1;
      display: inline-flex;
      padding: 2px 0;
    }

    .footer-links a:hover {
      color: #ffffff;
      transform: translateX(3px);
    }

    .footer-heading {
      color: #ffffff;
      font-weight: 800;
      margin-bottom: 8px;
    }

    .copyright {
      margin-top: 34px;
      padding-top: 22px;
      border-top: 1px solid rgba(226, 232, 240, 0.14);
      color: #94a3b8;
      display: flex;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
      font-size: 0.92rem;
    }

    .fixed-cta {
      position: fixed;
      left: 50%;
      bottom: max(18px, env(safe-area-inset-bottom));
      transform: translateX(-50%);
      z-index: 1200;
      width: min(calc(100% - 28px), 760px);
      border: 1px solid rgba(191, 219, 254, 0.96);
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(18px);
      box-shadow: 0 18px 54px rgba(15, 23, 42, 0.16);
      border-radius: 999px;
      padding: 10px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
    }

    .fixed-cta-text {
      padding-left: 10px;
      color: var(--color-muted);
      font-size: 0.94rem;
      font-weight: 720;
      overflow: hidden;
      white-space: nowrap;
      text-overflow: ellipsis;
    }

    .fixed-actions {
      display: flex;
      align-items: center;
      gap: 8px;
      flex: 0 0 auto;
    }

    @media (max-width: 1023px) {
      :root {
        --nav-height: 104px;
      }

      .brand-row {
        flex-wrap: wrap;
      }

      .search-wrap {
        order: 3;
        flex-basis: 100%;
        max-width: none;
      }

      .trend-pills {
        display: none;
      }

      .hero-content {
        padding-inline: 0;
      }

      .burst-badge {
        width: 86px;
        height: 86px;
        font-size: 0.9rem;
        right: 18px;
        top: 18px;
      }

      .hero-topline {
        padding-right: 78px;
      }

      .hero-index,
      .feature-lane,
      .time-grid,
      .news-layout,
      .bubble-wall,
      .faq-grid {
        grid-template-columns: 1fr;
      }

      .hero-metrics,
      .guarantee-row {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .news-side {
        position: static;
      }

      .lead-form-wrap {
        border-left: 0;
        border-top: 1px solid #bfdbfe;
      }

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

      .footer-grid > :first-child {
        grid-column: 1 / -1;
      }
    }

    @media (max-width: 767px) {
      body {
        padding-bottom: 126px;
      }

      .site-container {
        width: min(calc(100% - 24px), var(--container));
      }

      .section-pad {
        padding: 58px 0;
      }

      .section-heading {
        display: block;
      }

      .title-bar {
        display: flex;
        align-items: center;
        justify-content: flex-end;
      }

      .brand-row {
        min-height: auto;
        gap: 12px;
      }

      .brand-name {
        font-size: 0.94rem;
      }

      .brand-sub,
      .channel-note {
        display: none;
      }

      .nav-actions {
        margin-left: auto;
      }

      .nav-actions .btn {
        display: none;
      }

      .channel-row {
        display: block;
        padding-bottom: 10px;
      }

      .channel-menu {
        padding-top: 8px;
      }

      .search-wrap {
        padding: 5px;
      }

      .search-wrap button {
        min-width: 68px;
      }

      .hero {
        padding: 34px 0 56px;
      }

      .hero-board {
        border-radius: 26px;
        padding: 26px 18px;
      }

      .hero-topline {
        justify-content: flex-start;
        padding-right: 74px;
      }

      .hero-content {
        text-align: left;
      }

      .hero-desc,
      .hero-countdown {
        margin-left: 0;
        margin-right: 0;
      }

      .hero-cta {
        justify-content: flex-start;
      }

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

      .hero-metrics,
      .guarantee-row,
      .news-list {
        grid-template-columns: 1fr;
      }

      .index-card,
      .feature-card,
      .time-card,
      .side-card,
      .quote-bubble {
        border-radius: 20px;
      }

      .bottom-cta {
        display: block;
      }

      .bottom-cta .btn {
        width: 100%;
        margin-top: 14px;
      }

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

      .copyright {
        display: block;
      }

      .fixed-cta {
        width: calc(100% - 18px);
        border-radius: 24px;
        display: grid;
        gap: 8px;
        padding: 10px;
      }

      .fixed-cta-text {
        padding-left: 4px;
        text-align: center;
        white-space: normal;
        line-height: 1.35;
      }

      .fixed-actions {
        display: grid;
        grid-template-columns: 1fr 1fr;
        width: 100%;
      }

      .fixed-actions .btn {
        width: 100%;
        min-height: 44px;
        padding: 0 12px;
      }
    }

    @media (max-width: 520px) {
      h1 {
        font-size: 2rem;
      }

      .logo-mark {
        width: 38px;
        height: 38px;
      }

      .brand-link {
        gap: 9px;
      }

      .burst-badge {
        position: relative;
        right: auto;
        top: auto;
        transform: rotate(0);
        margin-bottom: 12px;
        width: auto;
        height: auto;
        clip-path: none;
        border-radius: 999px;
        padding: 9px 14px;
        flex-direction: row;
        gap: 6px;
      }

      .hero-topline {
        padding-right: 0;
      }

      .count-time span {
        min-width: 32px;
        height: 30px;
      }

      .hero-countdown {
        justify-content: flex-start;
      }

      .feature-card::after {
        font-size: 3.4rem;
      }

      .lead-copy,
      .lead-form-wrap {
        padding: 22px 18px;
      }
    }

/* roulang page: article */
:root {
      --color-primary: #2563eb;
      --color-primary-dark: #1d4ed8;
      --color-primary-soft: #dbeafe;
      --color-accent: #06b6d4;
      --color-accent-soft: #cffafe;
      --color-bg: #f6f9fc;
      --color-bg-2: #f8faff;
      --color-card: #ffffff;
      --color-text: #0f172a;
      --color-muted: #475569;
      --color-light: #64748b;
      --color-border: #e2e8f0;
      --color-border-blue: #bfdbfe;
      --shadow-sm: 0 8px 22px rgba(15, 23, 42, 0.06);
      --shadow-md: 0 12px 32px rgba(15, 23, 42, 0.08);
      --shadow-lg: 0 18px 44px rgba(37, 99, 235, 0.14);
      --radius-xs: 10px;
      --radius-sm: 14px;
      --radius-md: 18px;
      --radius-lg: 24px;
      --radius-xl: 32px;
      --container: 1220px;
      --font-main: system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      --transition: 180ms ease;
      --nav-height: 104px;
      --bottom-bar-height: 78px;
    }

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

    * {
      box-sizing: border-box;
    }

    body {
      margin: 0;
      font-family: var(--font-main);
      color: var(--color-text);
      background:
        radial-gradient(circle at 12% 8%, rgba(37, 99, 235, 0.10), transparent 32%),
        radial-gradient(circle at 88% 0%, rgba(6, 182, 212, 0.10), transparent 26%),
        linear-gradient(180deg, #ffffff 0%, var(--color-bg) 46%, #ffffff 100%);
      line-height: 1.75;
      min-width: 320px;
      padding-bottom: calc(var(--bottom-bar-height) + env(safe-area-inset-bottom, 0px) + 16px);
    }

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

    a:hover,
    a:focus {
      color: var(--color-primary);
      outline: none;
    }

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

    button,
    input,
    textarea {
      font: inherit;
    }

    button {
      cursor: pointer;
    }

    input,
    textarea {
      width: 100%;
      border: 1px solid var(--color-border);
      background: #ffffff;
      border-radius: var(--radius-sm);
      color: var(--color-text);
      transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
    }

    input:focus,
    textarea:focus {
      outline: none;
      border-color: var(--color-primary);
      box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
      background: #ffffff;
    }

    section {
      position: relative;
    }

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

    .section-pad {
      padding: 86px 0;
    }

    .section-pad-sm {
      padding: 58px 0;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      border-radius: 999px;
      background: var(--color-primary-soft);
      color: var(--color-primary-dark);
      font-size: 0.86rem;
      font-weight: 740;
      margin-bottom: 14px;
      border: 1px solid rgba(37, 99, 235, 0.12);
      letter-spacing: 0.01em;
    }

    .eyebrow::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 999px;
      background: var(--color-accent);
      box-shadow: 0 0 0 5px rgba(6, 182, 212, 0.16);
      flex: 0 0 auto;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 48px;
      padding: 0 20px;
      border-radius: 999px;
      border: 1px solid transparent;
      font-weight: 760;
      letter-spacing: -0.01em;
      line-height: 1;
      white-space: nowrap;
      transition: transform var(--transition), box-shadow var(--transition), color var(--transition), background var(--transition), border-color var(--transition);
    }

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

    .btn:focus {
      outline: 3px solid rgba(37, 99, 235, 0.22);
      outline-offset: 3px;
    }

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

    .btn-primary {
      background: var(--color-primary);
      color: #ffffff;
      box-shadow: 0 12px 28px rgba(37, 99, 235, 0.25);
    }

    .btn-primary:hover,
    .btn-primary:focus {
      background: var(--color-primary-dark);
      color: #ffffff;
      box-shadow: 0 18px 38px rgba(37, 99, 235, 0.30);
    }

    .btn-secondary {
      background: #ffffff;
      color: var(--color-primary-dark);
      border-color: var(--color-border-blue);
      box-shadow: var(--shadow-sm);
    }

    .btn-secondary:hover,
    .btn-secondary:focus {
      background: #eff6ff;
      border-color: #93c5fd;
      color: var(--color-primary-dark);
      box-shadow: var(--shadow-md);
    }

    .btn-ghost {
      background: rgba(37, 99, 235, 0.08);
      color: var(--color-primary-dark);
      border-color: transparent;
    }

    .btn-ghost:hover,
    .btn-ghost:focus {
      background: rgba(37, 99, 235, 0.13);
      color: var(--color-primary-dark);
    }

    .btn-small {
      min-height: 38px;
      padding: 0 14px;
      font-size: 0.9rem;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      border-radius: 999px;
      padding: 6px 10px;
      background: #f1f5f9;
      color: var(--color-muted);
      font-size: 0.84rem;
      font-weight: 700;
      line-height: 1;
      border: 1px solid var(--color-border);
    }

    .badge-blue {
      background: var(--color-primary-soft);
      color: var(--color-primary-dark);
      border-color: #bfdbfe;
    }

    .badge-cyan {
      background: var(--color-accent-soft);
      color: #0e7490;
      border-color: #a5f3fc;
    }

    .badge-hot {
      background: #fff7ed;
      color: #c2410c;
      border-color: #fed7aa;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.88);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(226, 232, 240, 0.86);
      box-shadow: 0 8px 24px rgba(15, 23, 42, 0.04);
    }

    .site-header .site-container {
      padding-top: 12px;
      padding-bottom: 12px;
    }

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

    .brand-link {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: 0;
    }

    .logo-mark {
      width: 44px;
      height: 44px;
      border-radius: 16px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, var(--color-primary) 0%, #3b82f6 52%, var(--color-accent) 100%);
      color: #ffffff;
      font-weight: 850;
      box-shadow: 0 12px 24px rgba(37, 99, 235, 0.24);
      flex: 0 0 auto;
    }

    .brand-text {
      display: flex;
      flex-direction: column;
      min-width: 0;
    }

    .brand-name {
      font-size: 1.1rem;
      font-weight: 820;
      color: var(--color-text);
      line-height: 1.15;
      letter-spacing: -0.01em;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .brand-note {
      font-size: 0.86rem;
      color: var(--color-light);
      line-height: 1.3;
    }

    .header-tools {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-wrap: wrap;
      justify-content: flex-end;
      flex: 1 1 auto;
      min-width: 0;
    }

    .site-search {
      display: flex;
      align-items: center;
      gap: 10px;
      flex: 1 1 380px;
      max-width: 560px;
      min-width: 260px;
      background: #ffffff;
      border: 1px solid var(--color-border);
      border-radius: 18px;
      padding: 8px;
      box-shadow: var(--shadow-sm);
    }

    .site-search input {
      border: 0;
      background: transparent;
      min-height: 34px;
      padding: 0 10px;
      box-shadow: none;
    }

    .site-search input:focus {
      box-shadow: none;
    }

    .site-search .btn {
      flex: 0 0 auto;
    }

    .trend-strip {
      display: flex;
      align-items: center;
      gap: 8px;
      flex-wrap: wrap;
      max-width: 340px;
    }

    .trend-label {
      font-size: 0.82rem;
      color: var(--color-light);
      font-weight: 700;
      white-space: nowrap;
    }

    .trend-link {
      display: inline-flex;
      align-items: center;
      border-radius: 999px;
      padding: 6px 10px;
      background: #f8fafc;
      border: 1px solid var(--color-border);
      color: var(--color-muted);
      font-size: 0.82rem;
      font-weight: 700;
    }

    .trend-link:hover,
    .trend-link:focus {
      background: var(--color-primary-soft);
      color: var(--color-primary-dark);
      border-color: #bfdbfe;
      transform: translateY(-1px);
    }

    .channel-row {
      margin-top: 12px;
      padding-top: 12px;
      border-top: 1px solid rgba(226, 232, 240, 0.82);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      flex-wrap: wrap;
    }

    .channel-menu {
      display: flex;
      align-items: center;
      gap: 10px;
      list-style: none;
      padding: 0;
      margin: 0;
      overflow-x: auto;
      scrollbar-width: none;
    }

    .channel-menu::-webkit-scrollbar {
      display: none;
    }

    .channel-menu a {
      display: inline-flex;
      align-items: center;
      min-height: 36px;
      padding: 0 14px;
      border-radius: 999px;
      background: #ffffff;
      border: 1px solid var(--color-border);
      color: var(--color-muted);
      font-size: 0.92rem;
      font-weight: 700;
      box-shadow: 0 1px 0 rgba(15, 23, 42, 0.03);
    }

    .channel-menu a:hover,
    .channel-menu a:focus {
      color: var(--color-primary-dark);
      border-color: #bfdbfe;
      background: #eff6ff;
      transform: translateY(-1px);
    }

    .channel-menu a.active {
      background: var(--color-primary-soft);
      color: var(--color-primary-dark);
      border-color: #bfdbfe;
    }

    .channel-note {
      font-size: 0.9rem;
      color: var(--color-light);
    }

    .page-main {
      padding-bottom: 30px;
    }

    .article-hero {
      padding-top: 36px;
      padding-bottom: 26px;
    }

    .article-hero .site-container {
      position: relative;
    }

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

    .hero-main,
    .hero-side {
      min-width: 0;
    }

    .hero-main {
      background:
        linear-gradient(135deg, rgba(219, 234, 254, 0.70) 0%, rgba(255, 255, 255, 0.94) 42%, rgba(245, 248, 255, 0.92) 100%);
      border: 1px solid rgba(191, 219, 254, 0.9);
      border-radius: var(--radius-xl);
      padding: 34px;
      box-shadow: var(--shadow-md);
      position: relative;
      overflow: hidden;
    }

    .hero-main::before {
      content: "";
      position: absolute;
      inset: -20% auto auto -10%;
      width: 260px;
      height: 260px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(37, 99, 235, 0.12) 0%, rgba(37, 99, 235, 0.04) 42%, transparent 70%);
      pointer-events: none;
    }

    .hero-main::after {
      content: "";
      position: absolute;
      inset: auto -30px -36px auto;
      width: 180px;
      height: 180px;
      border-radius: 40px;
      background: linear-gradient(135deg, rgba(6, 182, 212, 0.08), rgba(37, 99, 235, 0.05));
      transform: rotate(18deg);
      pointer-events: none;
    }

    .article-breadcrumb {
      display: flex;
      align-items: center;
      gap: 8px;
      flex-wrap: wrap;
      font-size: 0.88rem;
      color: var(--color-light);
      margin-bottom: 16px;
      position: relative;
      z-index: 1;
    }

    .article-breadcrumb a {
      color: var(--color-primary-dark);
      font-weight: 700;
    }

    .article-breadcrumb .sep {
      color: #94a3b8;
    }

    .article-title {
      font-size: clamp(2rem, 5vw, 3.45rem);
      line-height: 1.15;
      letter-spacing: -0.03em;
      margin: 0 0 14px;
      position: relative;
      z-index: 1;
    }

    .article-summary {
      font-size: 1.05rem;
      line-height: 1.8;
      color: var(--color-muted);
      max-width: 58ch;
      margin: 0 0 22px;
      position: relative;
      z-index: 1;
    }

    .hero-actions {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-wrap: wrap;
      margin-bottom: 20px;
      position: relative;
      z-index: 1;
    }

    .hero-badges {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-wrap: wrap;
      position: relative;
      z-index: 1;
    }

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

    .panel-card {
      background: var(--color-card);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-sm);
      padding: 20px;
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    }

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

    .panel-title {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1rem;
      font-weight: 820;
      margin: 0 0 12px;
      color: var(--color-text);
    }

    .panel-title .mini-mark {
      width: 10px;
      height: 10px;
      border-radius: 999px;
      background: var(--color-accent);
      box-shadow: 0 0 0 5px rgba(6, 182, 212, 0.14);
      flex: 0 0 auto;
    }

    .panel-list {
      list-style: none;
      padding: 0;
      margin: 0;
      display: grid;
      gap: 10px;
    }

    .panel-list li {
      display: flex;
      gap: 10px;
      color: var(--color-muted);
      font-size: 0.95rem;
      line-height: 1.7;
    }

    .panel-list .index {
      width: 24px;
      height: 24px;
      border-radius: 999px;
      background: var(--color-primary-soft);
      color: var(--color-primary-dark);
      font-weight: 800;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      flex: 0 0 auto;
      margin-top: 1px;
      font-size: 0.8rem;
    }

    .panel-callout {
      background: linear-gradient(135deg, rgba(219, 234, 254, 0.60), rgba(255, 255, 255, 1));
      border-color: #bfdbfe;
    }

    .panel-callout p {
      margin: 0;
      color: var(--color-muted);
      line-height: 1.75;
      font-size: 0.96rem;
    }

    .panel-metrics {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 12px;
    }

    .metric-box {
      padding: 16px;
      border-radius: 18px;
      background: #f8fbff;
      border: 1px solid var(--color-border);
    }

    .metric-label {
      font-size: 0.82rem;
      color: var(--color-light);
      margin-bottom: 8px;
      font-weight: 700;
    }

    .metric-value {
      font-size: 1rem;
      font-weight: 820;
      color: var(--color-text);
      line-height: 1.35;
    }

    .metric-sub {
      margin-top: 6px;
      font-size: 0.85rem;
      color: var(--color-muted);
      line-height: 1.5;
    }

    .article-layout {
      align-items: flex-start;
    }

    .content-card {
      background: var(--color-card);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-xl);
      box-shadow: var(--shadow-sm);
      overflow: hidden;
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    }

    .content-card:hover {
      transform: translateY(-2px);
      border-color: #bfdbfe;
      box-shadow: var(--shadow-md);
    }

    .content-card-head {
      padding: 26px 28px 18px;
      border-bottom: 1px solid rgba(226, 232, 240, 0.85);
      background: linear-gradient(180deg, rgba(248, 250, 255, 0.96), rgba(255, 255, 255, 0.98));
    }

    .content-section-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 0.86rem;
      color: var(--color-primary-dark);
      font-weight: 740;
      background: var(--color-primary-soft);
      border: 1px solid #bfdbfe;
      padding: 6px 12px;
      border-radius: 999px;
      margin-bottom: 12px;
    }

    .content-section-tag::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--color-accent);
    }

    .article-meta {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-wrap: wrap;
      color: var(--color-light);
      font-size: 0.88rem;
    }

    .meta-chip {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      border-radius: 999px;
      padding: 5px 10px;
      background: #f8fafc;
      border: 1px solid var(--color-border);
      color: var(--color-muted);
      font-weight: 700;
      line-height: 1;
    }

    .meta-chip strong {
      color: var(--color-primary-dark);
      font-weight: 800;
    }

    .article-abstract {
      margin: 18px 0 0;
      padding: 18px 20px;
      border-radius: 18px;
      background: linear-gradient(135deg, rgba(219, 234, 254, 0.62), rgba(255, 255, 255, 0.96));
      border: 1px solid #bfdbfe;
      color: var(--color-muted);
      line-height: 1.85;
      font-size: 0.98rem;
    }

    .article-body-wrap {
      padding: 28px;
    }

    .rich-content {
      font-size: 1.02rem;
      line-height: 1.85;
      color: var(--color-text);
      word-break: break-word;
    }

    .rich-content > :first-child {
      margin-top: 0;
    }

    .rich-content > :last-child {
      margin-bottom: 0;
    }

    .rich-content p {
      margin: 0 0 1.1em;
      color: var(--color-text);
    }

    .rich-content h2,
    .rich-content h3,
    .rich-content h4 {
      margin: 1.8em 0 0.8em;
      line-height: 1.35;
      letter-spacing: -0.02em;
      color: var(--color-text);
    }

    .rich-content h2 {
      font-size: clamp(1.35rem, 2.5vw, 1.75rem);
      padding-left: 14px;
      border-left: 4px solid var(--color-primary);
    }

    .rich-content h3 {
      font-size: 1.2rem;
      color: #12346b;
    }

    .rich-content ul,
    .rich-content ol {
      margin: 0 0 1.15em 1.15em;
      padding-left: 1rem;
      color: var(--color-text);
    }

    .rich-content li {
      margin-bottom: 0.45em;
    }

    .rich-content blockquote {
      margin: 1.4em 0;
      padding: 18px 20px;
      border-left: 4px solid var(--color-accent);
      background: #f8fbff;
      border-radius: 0 16px 16px 0;
      color: var(--color-muted);
      box-shadow: inset 0 0 0 1px rgba(226, 232, 240, 0.7);
    }

    .rich-content code {
      padding: 0.18em 0.42em;
      border-radius: 8px;
      background: #eff6ff;
      color: #1d4ed8;
      font-size: 0.94em;
    }

    .rich-content pre {
      margin: 1.2em 0;
      overflow-x: auto;
      background: #0f172a;
      color: #e2e8f0;
      border-radius: 18px;
      padding: 18px 20px;
      box-shadow: var(--shadow-sm);
    }

    .rich-content pre code {
      background: transparent;
      color: inherit;
      padding: 0;
    }

    .rich-content img {
      border-radius: 18px;
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-sm);
      margin: 1.25em 0;
      max-width: 100%;
      height: auto;
    }

    .rich-content figure {
      margin: 1.25em 0;
    }

    .rich-content figcaption {
      margin-top: 8px;
      color: var(--color-light);
      font-size: 0.9rem;
      text-align: center;
    }

    .rich-content table {
      width: 100%;
      border-collapse: collapse;
      margin: 1.2em 0;
      display: block;
      overflow-x: auto;
      background: #ffffff;
      border-radius: 16px;
      box-shadow: var(--shadow-sm);
    }

    .rich-content table thead th {
      background: #eff6ff;
      color: var(--color-primary-dark);
      font-weight: 800;
    }

    .rich-content th,
    .rich-content td {
      border: 1px solid var(--color-border);
      padding: 12px 14px;
      text-align: left;
      white-space: nowrap;
    }

    .article-aside {
      position: sticky;
      top: 148px;
      display: grid;
      gap: 14px;
    }

    .aside-card {
      background: var(--color-card);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-sm);
      padding: 20px;
    }

    .aside-title {
      font-size: 1rem;
      font-weight: 820;
      margin: 0 0 12px;
      color: var(--color-text);
    }

    .step-list {
      list-style: none;
      padding: 0;
      margin: 0;
      display: grid;
      gap: 12px;
    }

    .step-list li {
      display: flex;
      gap: 12px;
      align-items: flex-start;
      color: var(--color-muted);
      line-height: 1.75;
      font-size: 0.95rem;
    }

    .step-dot {
      width: 26px;
      height: 26px;
      border-radius: 999px;
      background: var(--color-primary-soft);
      color: var(--color-primary-dark);
      font-size: 0.82rem;
      font-weight: 850;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      flex: 0 0 auto;
      margin-top: 1px;
      border: 1px solid #bfdbfe;
    }

    .tip-list {
      list-style: none;
      padding: 0;
      margin: 0;
      display: grid;
      gap: 10px;
    }

    .tip-list li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      color: var(--color-muted);
      line-height: 1.7;
      font-size: 0.94rem;
    }

    .tip-list li::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 999px;
      background: var(--color-accent);
      margin-top: 9px;
      flex: 0 0 auto;
      box-shadow: 0 0 0 4px rgba(6, 182, 212, 0.14);
    }

    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .tag-cloud .badge {
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    }

    .tag-cloud .badge:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-sm);
      border-color: #bfdbfe;
    }

    .remind-card {
      background: linear-gradient(135deg, rgba(219, 234, 254, 0.68), rgba(255, 255, 255, 1));
      border-color: #bfdbfe;
    }

    .remind-card p {
      margin: 0 0 12px;
      color: var(--color-muted);
      line-height: 1.75;
    }

    .continue-section {
      padding-top: 18px;
    }

    .continue-grid {
      margin-top: 16px;
    }

    .mini-link-card {
      background: #ffffff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      padding: 22px;
      box-shadow: var(--shadow-sm);
      height: 100%;
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    }

    .mini-link-card:hover {
      transform: translateY(-3px);
      border-color: #bfdbfe;
      box-shadow: var(--shadow-lg);
    }

    .mini-link-card .card-label {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 10px;
      border-radius: 999px;
      background: #eff6ff;
      color: var(--color-primary-dark);
      border: 1px solid #bfdbfe;
      font-size: 0.82rem;
      font-weight: 740;
      margin-bottom: 12px;
    }

    .mini-link-card h3 {
      margin: 0 0 10px;
      font-size: 1.14rem;
      line-height: 1.4;
      color: var(--color-text);
    }

    .mini-link-card p {
      margin: 0 0 16px;
      color: var(--color-muted);
      line-height: 1.75;
      font-size: 0.96rem;
    }

    .mini-link-card .btn {
      width: 100%;
    }

    .faq-section {
      padding-top: 18px;
    }

    .faq-shell {
      background: #ffffff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-xl);
      box-shadow: var(--shadow-sm);
      overflow: hidden;
    }

    .faq-head {
      padding: 26px 28px 10px;
    }

    .faq-head h2 {
      margin: 0 0 10px;
      font-size: clamp(1.5rem, 3vw, 2.15rem);
      line-height: 1.2;
      letter-spacing: -0.03em;
    }

    .faq-head p {
      margin: 0;
      color: var(--color-muted);
      line-height: 1.8;
      max-width: 60ch;
    }

    .accordion {
      background: transparent;
      margin: 0;
      padding: 0 28px 28px;
      border: 0;
    }

    .accordion-item {
      border: 1px solid var(--color-border);
      border-radius: 18px;
      overflow: hidden;
      margin-top: 12px;
      background: #ffffff;
      box-shadow: 0 1px 0 rgba(15, 23, 42, 0.02);
    }

    .accordion-title {
      display: block;
      padding: 16px 18px 16px 46px;
      color: var(--color-text);
      font-weight: 780;
      line-height: 1.5;
      position: relative;
      background: #ffffff;
      border: 0;
    }

    .accordion-title::before {
      content: "＋";
      position: absolute;
      left: 16px;
      top: 15px;
      width: 22px;
      height: 22px;
      border-radius: 999px;
      background: var(--color-primary-soft);
      color: var(--color-primary-dark);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 0.9rem;
      font-weight: 800;
    }

    .accordion-item.is-active .accordion-title {
      background: #eff6ff;
      color: var(--color-primary-dark);
    }

    .accordion-item.is-active .accordion-title::before {
      content: "－";
    }

    .accordion-content {
      border: 0;
      background: #f8fbff;
      color: var(--color-muted);
      line-height: 1.8;
      padding: 0 18px 18px 46px;
    }

    .bottom-cta {
      padding-top: 28px;
    }

    .bottom-cta-box {
      background: linear-gradient(135deg, rgba(219, 234, 254, 0.78), rgba(248, 250, 255, 1));
      border: 1px solid #bfdbfe;
      border-radius: var(--radius-xl);
      padding: 28px;
      box-shadow: var(--shadow-md);
    }

    .bottom-cta-title {
      margin: 0 0 10px;
      font-size: clamp(1.4rem, 3vw, 2rem);
      line-height: 1.2;
      letter-spacing: -0.02em;
    }

    .bottom-cta-text {
      margin: 0 0 20px;
      color: var(--color-muted);
      line-height: 1.8;
      max-width: 66ch;
    }

    .bottom-cta-actions {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
    }

    .fixed-bottom-bar {
      position: fixed;
      left: 0;
      right: 0;
      bottom: 0;
      z-index: 980;
      padding: 10px 0 calc(10px + env(safe-area-inset-bottom, 0px));
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(18px);
      border-top: 1px solid rgba(226, 232, 240, 0.9);
      box-shadow: 0 -10px 28px rgba(15, 23, 42, 0.07);
    }

    .fixed-bottom-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      flex-wrap: wrap;
    }

    .fixed-bottom-text {
      color: var(--color-muted);
      font-size: 0.94rem;
      line-height: 1.6;
    }

    .fixed-bottom-actions {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
    }

    .site-footer {
      padding: 42px 0 26px;
      background: linear-gradient(180deg, rgba(248, 250, 255, 0.92), rgba(255, 255, 255, 1));
      border-top: 1px solid rgba(226, 232, 240, 0.86);
      margin-top: 30px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.6fr 1fr 1fr;
      gap: 28px;
      align-items: start;
      margin-bottom: 24px;
    }

    .footer-brand {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }

    .footer-title {
      font-size: 1.05rem;
      font-weight: 820;
      color: var(--color-text);
    }

    .footer-text {
      margin: 0;
      color: var(--color-muted);
      line-height: 1.8;
      max-width: 54ch;
    }

    .footer-heading {
      font-size: 0.96rem;
      font-weight: 820;
      color: var(--color-text);
      margin-bottom: 12px;
    }

    .footer-links {
      list-style: none;
      margin: 0;
      padding: 0;
      display: grid;
      gap: 10px;
    }

    .footer-links a {
      color: var(--color-muted);
      font-weight: 650;
    }

    .footer-links a:hover,
    .footer-links a:focus {
      color: var(--color-primary-dark);
    }

    .copyright {
      padding-top: 18px;
      border-top: 1px solid rgba(226, 232, 240, 0.86);
      display: flex;
      justify-content: space-between;
      gap: 12px;
      flex-wrap: wrap;
      color: var(--color-light);
      font-size: 0.88rem;
      line-height: 1.7;
    }

    .empty-state {
      background: #ffffff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-xl);
      box-shadow: var(--shadow-sm);
      padding: 40px 28px;
      text-align: center;
      max-width: 760px;
      margin: 0 auto;
    }

    .empty-state .icon {
      width: 72px;
      height: 72px;
      margin: 0 auto 16px;
      border-radius: 24px;
      background: var(--color-primary-soft);
      color: var(--color-primary-dark);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 2rem;
      font-weight: 900;
      box-shadow: inset 0 0 0 1px #bfdbfe;
    }

    .empty-state h2 {
      margin: 0 0 10px;
      font-size: 1.6rem;
      line-height: 1.3;
    }

    .empty-state p {
      margin: 0 0 18px;
      color: var(--color-muted);
      line-height: 1.8;
    }

    .empty-state .btn {
      min-width: 160px;
    }

    .page-gap {
      height: 22px;
    }

    .sticky-shadow {
      box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
    }

    .visually-hidden {
      position: absolute;
      width: 1px;
      height: 1px;
      padding: 0;
      margin: -1px;
      overflow: hidden;
      clip: rect(0, 0, 0, 0);
      white-space: nowrap;
      border: 0;
    }

    @media (max-width: 1023px) {
      .hero-main {
        padding: 28px;
      }

      .article-aside {
        position: static;
      }

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

      .footer-grid > :first-child {
        grid-column: 1 / -1;
      }
    }

    @media (max-width: 639px) {
      body {
        padding-bottom: calc(102px + env(safe-area-inset-bottom, 0px));
      }

      .site-header .site-container {
        padding-top: 10px;
        padding-bottom: 10px;
      }

      .header-top {
        align-items: stretch;
      }

      .brand-link {
        width: 100%;
      }

      .brand-name {
        white-space: normal;
      }

      .header-tools {
        width: 100%;
        justify-content: stretch;
      }

      .site-search {
        max-width: none;
        width: 100%;
        flex-basis: 100%;
      }

      .trend-strip {
        max-width: none;
        width: 100%;
      }

      .header-cta {
        width: 100%;
      }

      .header-cta .btn {
        width: 100%;
      }

      .channel-row {
        gap: 10px;
      }

      .channel-note {
        width: 100%;
      }

      .section-pad {
        padding: 58px 0;
      }

      .section-pad-sm {
        padding: 42px 0;
      }

      .hero-main {
        padding: 22px;
        border-radius: 24px;
      }

      .article-title {
        font-size: clamp(1.9rem, 9vw, 2.7rem);
      }

      .article-summary {
        font-size: 0.98rem;
      }

      .hero-actions,
      .bottom-cta-actions,
      .fixed-bottom-actions {
        width: 100%;
      }

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

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

      .content-card-head,
      .article-body-wrap,
      .faq-head,
      .accordion {
        padding-left: 18px;
        padding-right: 18px;
      }

      .accordion-content {
        padding-left: 18px;
      }

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

      .copyright {
        flex-direction: column;
      }

      .bottom-cta-box {
        padding: 22px;
      }

      .fixed-bottom-inner {
        flex-direction: column;
        align-items: stretch;
      }

      .fixed-bottom-text {
        text-align: center;
      }
    }