/* roulang page: index */
:root {
      --ink: #1c1717;
      --ink-2: #2b2221;
      --charcoal: #130f10;
      --wine: #8f2131;
      --wine-dark: #651727;
      --amber: #d99a3a;
      --amber-soft: #fff1d5;
      --sand: #f7f0e6;
      --sand-2: #efe4d6;
      --paper: #fffaf2;
      --white: #ffffff;
      --muted: #766a62;
      --slate: #71807f;
      --line: rgba(73, 55, 45, .14);
      --line-strong: rgba(143, 33, 49, .28);
      --shadow: 0 18px 48px rgba(33, 22, 18, .10);
      --shadow-strong: 0 24px 70px rgba(33, 22, 18, .16);
      --radius-sm: 14px;
      --radius: 22px;
      --radius-lg: 32px;
      --container: 1200px;
      --ease: 180ms ease;
      --font: PingFang SC, Microsoft YaHei, Noto Sans SC, Heiti SC, Arial, sans-serif;
    }

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

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

    body {
      font-family: var(--font);
      color: var(--ink);
      background:
        radial-gradient(circle at 8% 4%, rgba(217, 154, 58, .18), transparent 30%),
        radial-gradient(circle at 92% 10%, rgba(143, 33, 49, .13), transparent 28%),
        linear-gradient(180deg, #fff8ef 0%, var(--sand) 44%, #fbf6ee 100%);
      line-height: 1.72;
      font-size: 16px;
      overflow-x: hidden;
    }

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

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

    button, input, textarea {
      font: inherit;
    }

    button {
      border: 0;
      cursor: pointer;
    }

    ::selection {
      background: rgba(143, 33, 49, .18);
      color: var(--wine-dark);
    }

    :focus-visible {
      outline: 3px solid rgba(217, 154, 58, .58);
      outline-offset: 3px;
      border-radius: 12px;
    }

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

    .section {
      padding: 92px 0;
      position: relative;
    }

    .section-tight {
      padding: 72px 0;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      border-radius: 999px;
      color: var(--wine-dark);
      background: rgba(255, 241, 213, .88);
      border: 1px solid rgba(217, 154, 58, .34);
      font-size: 13px;
      font-weight: 700;
      letter-spacing: .03em;
    }

    .eyebrow::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 99px;
      background: linear-gradient(135deg, var(--wine), var(--amber));
      box-shadow: 0 0 0 5px rgba(217, 154, 58, .14);
    }

    .section-head {
      display: grid;
      grid-template-columns: minmax(0, 1fr) minmax(280px, 430px);
      gap: 28px;
      align-items: end;
      margin-bottom: 34px;
    }

    .section-head h2 {
      font-size: clamp(28px, 3.4vw, 40px);
      line-height: 1.18;
      letter-spacing: -.03em;
      color: var(--ink);
      margin-top: 14px;
    }

    .section-head p {
      color: var(--muted);
      font-size: 17px;
    }

    .muted {
      color: var(--muted);
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(255, 248, 239, .86);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--line);
      transition: box-shadow var(--ease), background var(--ease);
    }

    .site-header.is-scrolled {
      background: rgba(255, 250, 242, .96);
      box-shadow: 0 12px 36px rgba(33, 22, 18, .08);
    }

    .nav {
      height: 80px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 22px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: max-content;
      font-weight: 900;
      color: var(--ink);
      letter-spacing: -.02em;
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      border-radius: 15px;
      background:
        linear-gradient(135deg, rgba(143, 33, 49, .96), rgba(217, 154, 58, .88)),
        var(--wine);
      position: relative;
      box-shadow: 0 12px 28px rgba(143, 33, 49, .22);
      overflow: hidden;
    }

    .brand-mark::before,
    .brand-mark::after {
      content: "";
      position: absolute;
      inset: 8px 10px;
      border: 2px solid rgba(255, 250, 242, .78);
      border-radius: 8px;
    }

    .brand-mark::after {
      width: 9px;
      height: 9px;
      inset: 16px auto auto 17px;
      border-radius: 2px;
      background: rgba(255, 250, 242, .9);
      transform: rotate(45deg);
    }

    .brand-text {
      display: flex;
      flex-direction: column;
      line-height: 1.12;
    }

    .brand-text strong {
      font-size: 18px;
    }

    .brand-text span {
      font-size: 12px;
      color: var(--muted);
      font-weight: 700;
      margin-top: 3px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      flex: 1;
    }

    .nav-links a {
      padding: 10px 13px;
      border-radius: 999px;
      color: #4c403b;
      font-weight: 700;
      font-size: 14px;
    }

    .nav-links a:hover,
    .nav-links a.active {
      color: var(--wine-dark);
      background: rgba(143, 33, 49, .08);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 44px;
      padding: 12px 18px;
      border-radius: 999px;
      font-weight: 800;
      font-size: 14px;
      letter-spacing: .01em;
      border: 1px solid transparent;
      transition: transform var(--ease), box-shadow var(--ease), background var(--ease), border-color var(--ease), color var(--ease);
      white-space: nowrap;
    }

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

    .btn:active {
      transform: translateY(0) scale(.98);
    }

    .btn-primary {
      color: #fffaf2;
      background: linear-gradient(135deg, var(--wine-dark), var(--wine) 48%, #be7734 100%);
      box-shadow: 0 14px 32px rgba(143, 33, 49, .24);
    }

    .btn-primary:hover {
      box-shadow: 0 18px 42px rgba(143, 33, 49, .32);
    }

    .btn-secondary {
      color: var(--ink);
      background: rgba(255, 250, 242, .72);
      border-color: rgba(73, 55, 45, .16);
    }

    .btn-secondary:hover {
      background: var(--amber-soft);
      border-color: rgba(217, 154, 58, .42);
    }

    .btn-dark {
      color: var(--paper);
      background: rgba(28, 23, 23, .92);
      border-color: rgba(255, 255, 255, .12);
    }

    .btn-ghost {
      color: var(--paper);
      background: rgba(255, 255, 255, .08);
      border-color: rgba(255, 255, 255, .18);
    }

    .btn-ghost:hover {
      background: rgba(255, 255, 255, .14);
      border-color: rgba(217, 154, 58, .42);
    }

    .menu-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: 14px;
      background: var(--white);
      border: 1px solid var(--line);
      align-items: center;
      justify-content: center;
      color: var(--ink);
      box-shadow: 0 10px 24px rgba(33, 22, 18, .06);
    }

    .menu-toggle span {
      width: 19px;
      height: 2px;
      background: currentColor;
      position: relative;
      border-radius: 20px;
    }

    .menu-toggle span::before,
    .menu-toggle span::after {
      content: "";
      position: absolute;
      left: 0;
      width: 19px;
      height: 2px;
      border-radius: 20px;
      background: currentColor;
      transition: transform var(--ease), top var(--ease);
    }

    .menu-toggle span::before {
      top: -6px;
    }

    .menu-toggle span::after {
      top: 6px;
    }

    .menu-toggle.open span {
      background: transparent;
    }

    .menu-toggle.open span::before {
      top: 0;
      transform: rotate(45deg);
      background: var(--ink);
    }

    .menu-toggle.open span::after {
      top: 0;
      transform: rotate(-45deg);
      background: var(--ink);
    }

    .hero {
      padding: 38px 0 88px;
    }

    .hero-panel {
      min-height: 620px;
      border-radius: 38px;
      color: var(--paper);
      background:
        radial-gradient(circle at 16% 12%, rgba(217, 154, 58, .24), transparent 28%),
        radial-gradient(circle at 82% 24%, rgba(143, 33, 49, .32), transparent 32%),
        linear-gradient(135deg, #171111 0%, #251919 48%, #4b1623 100%);
      box-shadow: var(--shadow-strong);
      border: 1px solid rgba(255, 255, 255, .12);
      position: relative;
      overflow: hidden;
      padding: clamp(26px, 4.2vw, 56px);
      display: grid;
      grid-template-columns: minmax(0, .94fr) minmax(360px, .82fr);
      gap: 42px;
      align-items: stretch;
    }

    .hero-panel::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px),
        linear-gradient(180deg, rgba(255, 255, 255, .025) 1px, transparent 1px);
      background-size: 48px 48px;
      mask-image: radial-gradient(circle at 35% 35%, #000 0, transparent 72%);
      pointer-events: none;
    }

    .hero-panel::after {
      content: "";
      position: absolute;
      width: 420px;
      height: 420px;
      right: -180px;
      bottom: -150px;
      border-radius: 50%;
      background: rgba(217, 154, 58, .13);
      filter: blur(3px);
    }

    .hero-copy,
    .hero-board {
      position: relative;
      z-index: 1;
    }

    .hero-copy {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      gap: 30px;
    }

    .hero-copy h1 {
      max-width: 720px;
      margin-top: 18px;
      font-size: clamp(36px, 5vw, 58px);
      line-height: 1.12;
      letter-spacing: -.055em;
      color: var(--paper);
    }

    .hero-copy .lead {
      max-width: 680px;
      color: rgba(255, 250, 242, .78);
      font-size: 18px;
      line-height: 1.86;
      margin-top: 18px;
    }

    .hero-copy .eyebrow {
      color: #ffe8b6;
      background: rgba(255, 255, 255, .08);
      border-color: rgba(217, 154, 58, .32);
    }

    .hero-actions {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-wrap: wrap;
      margin-top: 28px;
    }

    .hero-data {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
      margin-top: 24px;
    }

    .data-badge {
      min-width: 132px;
      padding: 14px 16px;
      border-radius: 18px;
      background: rgba(255, 250, 242, .09);
      border: 1px solid rgba(255, 255, 255, .13);
      box-shadow: inset 0 1px 0 rgba(255, 255, 255, .08);
    }

    .data-badge strong {
      display: block;
      font-size: 24px;
      line-height: 1;
      letter-spacing: -.03em;
      color: #ffd28a;
    }

    .data-badge span {
      display: block;
      margin-top: 8px;
      color: rgba(255, 250, 242, .68);
      font-size: 13px;
      font-weight: 700;
    }

    .hero-note {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      padding: 16px;
      border-radius: 22px;
      background: rgba(255, 255, 255, .07);
      border: 1px solid rgba(255, 255, 255, .12);
      color: rgba(255, 250, 242, .72);
      font-size: 14px;
      max-width: 640px;
    }

    .hero-note i {
      width: 28px;
      height: 28px;
      flex: 0 0 28px;
      border-radius: 10px;
      background: rgba(217, 154, 58, .2);
      position: relative;
    }

    .hero-note i::after {
      content: "✓";
      position: absolute;
      inset: 0;
      display: grid;
      place-items: center;
      color: #ffd28a;
      font-style: normal;
      font-weight: 900;
    }

    .hero-board {
      align-self: center;
      background: rgba(255, 250, 242, .96);
      color: var(--ink);
      border-radius: 30px;
      padding: 22px;
      border: 1px solid rgba(255, 255, 255, .7);
      box-shadow: 0 26px 80px rgba(0, 0, 0, .24);
    }

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

    .board-title {
      display: flex;
      align-items: center;
      gap: 11px;
      font-weight: 900;
      letter-spacing: -.02em;
    }

    .board-icon {
      width: 38px;
      height: 38px;
      border-radius: 14px;
      background:
        linear-gradient(135deg, rgba(143, 33, 49, .12), rgba(217, 154, 58, .22));
      border: 1px solid rgba(217, 154, 58, .34);
      position: relative;
    }

    .board-icon::before,
    .board-icon::after {
      content: "";
      position: absolute;
      left: 10px;
      right: 10px;
      height: 3px;
      border-radius: 999px;
      background: var(--wine);
    }

    .board-icon::before {
      top: 12px;
    }

    .board-icon::after {
      top: 22px;
      background: var(--amber);
    }

    .board-status {
      padding: 6px 10px;
      border-radius: 999px;
      font-size: 12px;
      font-weight: 900;
      color: var(--wine-dark);
      background: var(--amber-soft);
      border: 1px solid rgba(217, 154, 58, .28);
    }

    .rank-list {
      display: grid;
      gap: 12px;
      margin-top: 18px;
    }

    .rank-item {
      display: grid;
      grid-template-columns: 36px minmax(0, 1fr) auto;
      gap: 12px;
      align-items: center;
      padding: 14px;
      border-radius: 18px;
      border: 1px solid rgba(73, 55, 45, .10);
      background: #fffdf8;
      transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease);
    }

    .rank-item:hover {
      transform: translateX(4px);
      border-color: rgba(143, 33, 49, .28);
      box-shadow: 0 12px 28px rgba(33, 22, 18, .08);
    }

    .rank-num {
      width: 34px;
      height: 34px;
      border-radius: 13px;
      display: grid;
      place-items: center;
      font-weight: 900;
      color: var(--wine-dark);
      background: linear-gradient(135deg, rgba(143, 33, 49, .08), rgba(217, 154, 58, .18));
    }

    .rank-text strong {
      display: block;
      font-size: 15px;
      line-height: 1.35;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

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

    .rank-trend {
      color: var(--wine);
      font-weight: 900;
      font-size: 13px;
    }

    .board-mini {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-top: 16px;
    }

    .mini-card {
      padding: 16px;
      border-radius: 20px;
      background: linear-gradient(180deg, #fff7e8, #fffdf9);
      border: 1px solid rgba(217, 154, 58, .28);
    }

    .mini-card b {
      display: block;
      font-size: 22px;
      color: var(--wine-dark);
      line-height: 1;
    }

    .mini-card small {
      display: block;
      margin-top: 8px;
      color: var(--muted);
      font-weight: 700;
    }

    .feature-grid {
      display: grid;
      grid-template-columns: 1.15fr .85fr;
      grid-template-rows: auto auto;
      gap: 18px;
    }

    .feature-card {
      position: relative;
      padding: 28px;
      min-height: 260px;
      border-radius: var(--radius-lg);
      background: rgba(255, 250, 242, .84);
      border: 1px solid var(--line);
      box-shadow: var(--shadow);
      overflow: hidden;
      transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease);
    }

    .feature-card:hover {
      transform: translateY(-5px);
      border-color: var(--line-strong);
      box-shadow: var(--shadow-strong);
    }

    .feature-card.wide {
      grid-row: span 2;
      background:
        radial-gradient(circle at 85% 20%, rgba(217, 154, 58, .18), transparent 32%),
        linear-gradient(135deg, rgba(255, 250, 242, .95), rgba(255, 241, 213, .72));
    }

    .line-icon {
      width: 48px;
      height: 48px;
      border-radius: 17px;
      background: #fffaf2;
      border: 1px solid rgba(143, 33, 49, .18);
      display: grid;
      place-items: center;
      margin-bottom: 22px;
      color: var(--wine-dark);
      box-shadow: 0 10px 26px rgba(33, 22, 18, .06);
    }

    .line-icon svg {
      width: 24px;
      height: 24px;
      stroke: currentColor;
      fill: none;
      stroke-width: 2;
      stroke-linecap: round;
      stroke-linejoin: round;
    }

    .feature-card h3 {
      font-size: 24px;
      line-height: 1.25;
      letter-spacing: -.03em;
      margin-bottom: 12px;
    }

    .feature-card p {
      color: var(--muted);
      max-width: 620px;
    }

    .feature-list {
      display: grid;
      gap: 10px;
      margin-top: 22px;
      list-style: none;
    }

    .feature-list li {
      display: flex;
      gap: 10px;
      color: #4a3f3b;
      font-weight: 700;
      font-size: 14px;
    }

    .feature-list li::before {
      content: "";
      width: 7px;
      height: 7px;
      flex: 0 0 7px;
      margin-top: 9px;
      border-radius: 99px;
      background: var(--amber);
      box-shadow: 0 0 0 5px rgba(217, 154, 58, .13);
    }

    .screen-stage {
      margin-top: 26px;
      border-radius: 28px;
      background: #171111;
      border: 1px solid rgba(255, 255, 255, .14);
      padding: 16px;
      box-shadow: inset 0 1px 0 rgba(255, 255, 255, .08);
    }

    .screen-bar {
      display: flex;
      align-items: center;
      gap: 7px;
      margin-bottom: 14px;
    }

    .screen-bar i {
      width: 9px;
      height: 9px;
      border-radius: 99px;
      background: rgba(255, 250, 242, .34);
    }

    .screen-body {
      display: grid;
      gap: 10px;
    }

    .screen-row {
      display: grid;
      grid-template-columns: 1fr 70px;
      gap: 10px;
      align-items: center;
      padding: 12px;
      border-radius: 16px;
      background: rgba(255, 250, 242, .08);
    }

    .screen-line {
      height: 10px;
      border-radius: 999px;
      background: linear-gradient(90deg, rgba(255, 250, 242, .82), rgba(255, 250, 242, .18));
    }

    .screen-chip {
      height: 24px;
      border-radius: 999px;
      background: rgba(217, 154, 58, .2);
      border: 1px solid rgba(217, 154, 58, .34);
    }

    .timeline-wrap {
      position: relative;
      background: rgba(255, 250, 242, .66);
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      padding: 26px;
      box-shadow: var(--shadow);
      overflow: hidden;
    }

    .timeline-wrap::before {
      content: "";
      position: absolute;
      left: 48px;
      right: 48px;
      top: 93px;
      height: 1px;
      background: linear-gradient(90deg, rgba(143, 33, 49, .08), rgba(143, 33, 49, .38), rgba(217, 154, 58, .36), rgba(143, 33, 49, .08));
    }

    .steps {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 14px;
      position: relative;
      z-index: 1;
    }

    .step-card {
      padding: 20px;
      border-radius: 24px;
      background: #fffdf8;
      border: 1px solid rgba(73, 55, 45, .12);
      min-height: 220px;
      transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
    }

    .step-card:hover {
      transform: translateY(-4px);
      border-color: rgba(217, 154, 58, .44);
      box-shadow: 0 18px 40px rgba(33, 22, 18, .10);
    }

    .step-num {
      width: 44px;
      height: 44px;
      display: grid;
      place-items: center;
      border-radius: 16px;
      color: #fffaf2;
      font-weight: 900;
      background: linear-gradient(135deg, var(--wine), var(--amber));
      box-shadow: 0 12px 24px rgba(143, 33, 49, .20);
      margin-bottom: 18px;
    }

    .step-card h3 {
      font-size: 18px;
      line-height: 1.3;
      margin-bottom: 10px;
    }

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

    .updates-layout {
      display: grid;
      grid-template-columns: minmax(0, .95fr) minmax(320px, .45fr);
      gap: 22px;
      align-items: start;
    }

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

    .post-card {
      display: grid;
      gap: 12px;
      padding: 22px;
      border-radius: 24px;
      background: rgba(255, 250, 242, .88);
      border: 1px solid var(--line);
      box-shadow: 0 12px 34px rgba(33, 22, 18, .07);
      transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease);
    }

    .post-card:hover {
      transform: translateY(-4px);
      border-color: rgba(143, 33, 49, .30);
      box-shadow: var(--shadow);
    }

    .post-meta {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-wrap: wrap;
      color: var(--muted);
      font-size: 13px;
      font-weight: 700;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      min-height: 26px;
      padding: 4px 10px;
      border-radius: 999px;
      color: var(--wine-dark);
      background: rgba(143, 33, 49, .08);
      border: 1px solid rgba(143, 33, 49, .14);
      font-size: 12px;
      font-weight: 900;
    }

    .post-title {
      font-size: 20px;
      line-height: 1.36;
      letter-spacing: -.02em;
      font-weight: 900;
    }

    .post-title a:hover {
      color: var(--wine);
      transform: translateX(4px);
      display: inline-block;
    }

    .post-excerpt {
      color: var(--muted);
      line-height: 1.78;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .read-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--wine-dark);
      font-weight: 900;
      width: fit-content;
      border-bottom: 1px solid rgba(143, 33, 49, .18);
    }

    .read-link:hover {
      color: var(--amber);
      border-color: rgba(217, 154, 58, .48);
      transform: translateX(3px);
    }

    .recommend-panel {
      position: sticky;
      top: 104px;
      padding: 24px;
      border-radius: var(--radius-lg);
      background:
        radial-gradient(circle at 92% 12%, rgba(217, 154, 58, .20), transparent 34%),
        linear-gradient(180deg, #fffdf8, #fff4e5);
      border: 1px solid rgba(217, 154, 58, .28);
      box-shadow: var(--shadow);
    }

    .recommend-panel h3 {
      font-size: 22px;
      letter-spacing: -.02em;
      margin-bottom: 12px;
    }

    .recommend-panel p {
      color: var(--muted);
      margin-bottom: 18px;
    }

    .filter-tags {
      display: flex;
      gap: 9px;
      flex-wrap: wrap;
      margin: 16px 0 20px;
    }

    .filter-tags span {
      padding: 8px 11px;
      border-radius: 999px;
      color: #4d4039;
      background: rgba(255, 250, 242, .78);
      border: 1px solid rgba(73, 55, 45, .12);
      font-weight: 800;
      font-size: 13px;
    }

    .empty-state {
      min-height: 240px;
      border-radius: 28px;
      display: grid;
      place-items: center;
      text-align: center;
      padding: 34px;
      color: var(--muted);
      background: rgba(255, 250, 242, .78);
      border: 1px dashed rgba(143, 33, 49, .28);
      font-weight: 800;
    }

    .case-grid {
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 20px;
    }

    .case-card {
      border-radius: var(--radius-lg);
      padding: 30px;
      background: #fffaf2;
      border: 1px solid var(--line);
      box-shadow: var(--shadow);
      transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
    }

    .case-card:hover {
      transform: translateY(-5px);
      border-color: var(--line-strong);
      box-shadow: var(--shadow-strong);
    }

    .case-card.featured {
      background:
        radial-gradient(circle at 88% 14%, rgba(217, 154, 58, .20), transparent 34%),
        linear-gradient(135deg, #211818, #5d1a28);
      color: var(--paper);
      min-height: 380px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .case-card h3 {
      font-size: 25px;
      line-height: 1.28;
      letter-spacing: -.03em;
      margin-bottom: 14px;
    }

    .case-card p {
      color: var(--muted);
    }

    .case-card.featured p {
      color: rgba(255, 250, 242, .72);
    }

    .quote {
      margin-top: 24px;
      padding-left: 18px;
      border-left: 3px solid var(--amber);
      font-size: 18px;
      line-height: 1.75;
      color: rgba(255, 250, 242, .88);
      font-weight: 700;
    }

    .case-metrics {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
      margin-top: 28px;
    }

    .metric-pill {
      padding: 12px 14px;
      border-radius: 16px;
      background: rgba(255, 250, 242, .10);
      border: 1px solid rgba(255, 255, 255, .12);
    }

    .metric-pill b {
      display: block;
      color: #ffd28a;
      font-size: 22px;
      line-height: 1;
    }

    .metric-pill span {
      display: block;
      margin-top: 7px;
      color: rgba(255, 250, 242, .66);
      font-size: 12px;
      font-weight: 800;
    }

    .case-side {
      display: grid;
      gap: 20px;
    }

    .wall-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 24px;
    }

    .wall-card {
      border-radius: 24px;
      padding: 22px;
      background: rgba(255, 250, 242, .82);
      border: 1px solid var(--line);
      min-height: 170px;
      transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease);
    }

    .wall-card:hover {
      transform: translateY(-4px);
      border-color: rgba(217, 154, 58, .42);
      box-shadow: var(--shadow);
    }

    .wall-card b {
      display: block;
      font-size: 18px;
      margin-bottom: 10px;
    }

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

    .pricing-wrap {
      display: grid;
      grid-template-columns: .94fr 1.08fr .94fr;
      gap: 18px;
      align-items: center;
    }

    .price-card {
      padding: 28px;
      border-radius: var(--radius-lg);
      background: rgba(255, 250, 242, .88);
      border: 1px solid var(--line);
      box-shadow: var(--shadow);
      transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
    }

    .price-card:hover {
      transform: translateY(-5px);
      border-color: var(--line-strong);
      box-shadow: var(--shadow-strong);
    }

    .price-card.recommended {
      position: relative;
      padding: 34px 30px;
      background:
        linear-gradient(#fffaf2, #fffaf2) padding-box,
        linear-gradient(135deg, var(--wine), var(--amber)) border-box;
      border: 2px solid transparent;
      min-height: 520px;
    }

    .recommend-badge {
      position: absolute;
      right: 24px;
      top: 24px;
      padding: 6px 10px;
      border-radius: 999px;
      color: #fffaf2;
      background: linear-gradient(135deg, var(--wine), var(--amber));
      font-size: 12px;
      font-weight: 900;
    }

    .price-card h3 {
      font-size: 23px;
      letter-spacing: -.02em;
      margin-bottom: 10px;
    }

    .price {
      display: flex;
      align-items: baseline;
      gap: 8px;
      margin: 18px 0 12px;
    }

    .price strong {
      font-size: 38px;
      line-height: 1;
      color: var(--wine-dark);
      letter-spacing: -.04em;
    }

    .price span {
      color: var(--muted);
      font-weight: 800;
    }

    .fit {
      color: var(--muted);
      margin-bottom: 20px;
    }

    .check-list {
      display: grid;
      gap: 12px;
      list-style: none;
      margin: 22px 0 26px;
    }

    .check-list li {
      display: flex;
      gap: 10px;
      color: #493e39;
      font-weight: 700;
    }

    .check-list li::before {
      content: "✓";
      display: grid;
      place-items: center;
      width: 22px;
      height: 22px;
      flex: 0 0 22px;
      border-radius: 8px;
      color: var(--wine-dark);
      background: rgba(217, 154, 58, .17);
      font-weight: 900;
      font-size: 13px;
      margin-top: 2px;
    }

    .faq-wrap {
      display: grid;
      grid-template-columns: .42fr .58fr;
      gap: 28px;
      align-items: start;
    }

    .faq-intro {
      padding: 28px;
      border-radius: var(--radius-lg);
      background: #211818;
      color: var(--paper);
      border: 1px solid rgba(255, 255, 255, .10);
      box-shadow: var(--shadow);
      position: sticky;
      top: 104px;
    }

    .faq-intro h2 {
      font-size: clamp(27px, 3vw, 38px);
      line-height: 1.18;
      margin-bottom: 12px;
    }

    .faq-intro p {
      color: rgba(255, 250, 242, .74);
      max-width: 420px;
      margin-bottom: 24px;
    }

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

    .faq-point {
      padding: 14px 16px;
      border-radius: 18px;
      background: rgba(255, 255, 255, .06);
      border: 1px solid rgba(255, 255, 255, .10);
      color: rgba(255, 250, 242, .84);
      font-weight: 700;
      font-size: 14px;
    }

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

    details.faq-item {
      border-radius: 22px;
      border: 1px solid var(--line);
      background: rgba(255, 250, 242, .88);
      box-shadow: var(--shadow);
      overflow: hidden;
      transition: border-color var(--ease), box-shadow var(--ease), transform var(--ease);
    }

    details.faq-item[open] {
      border-color: rgba(143, 33, 49, .26);
      box-shadow: var(--shadow-strong);
    }

    details.faq-item:hover {
      transform: translateY(-2px);
    }

    summary.faq-q {
      list-style: none;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 20px 22px;
      font-size: 18px;
      font-weight: 900;
      color: var(--ink);
    }

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

    .faq-q span:last-child {
      width: 30px;
      height: 30px;
      flex: 0 0 30px;
      border-radius: 10px;
      display: grid;
      place-items: center;
      color: var(--wine-dark);
      background: rgba(143, 33, 49, .08);
      border: 1px solid rgba(143, 33, 49, .12);
      transition: transform var(--ease), background var(--ease);
    }

    details[open] .faq-q span:last-child {
      transform: rotate(45deg);
      background: rgba(217, 154, 58, .14);
    }

    .faq-a {
      padding: 0 22px 22px;
      color: var(--muted);
      line-height: 1.84;
      font-size: 15px;
    }

    .cta-banner {
      padding: 0 0 94px;
    }

    .cta-box {
      border-radius: 34px;
      padding: clamp(28px, 4vw, 42px);
      background:
        radial-gradient(circle at 15% 18%, rgba(217, 154, 58, .24), transparent 30%),
        radial-gradient(circle at 84% 12%, rgba(255, 255, 255, .10), transparent 28%),
        linear-gradient(135deg, #5b1625, #221919 56%, #4b3021 100%);
      color: var(--paper);
      border: 1px solid rgba(255, 255, 255, .10);
      box-shadow: var(--shadow-strong);
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      align-items: center;
      gap: 22px;
      overflow: hidden;
      position: relative;
    }

    .cta-box::after {
      content: "";
      position: absolute;
      right: -120px;
      bottom: -120px;
      width: 300px;
      height: 300px;
      border-radius: 50%;
      background: rgba(217, 154, 58, .15);
      filter: blur(8px);
    }

    .cta-box h2 {
      font-size: clamp(28px, 3.5vw, 40px);
      line-height: 1.18;
      letter-spacing: -.03em;
      margin-bottom: 12px;
    }

    .cta-box p {
      max-width: 680px;
      color: rgba(255, 250, 242, .74);
      font-size: 16px;
      line-height: 1.82;
    }

    .cta-buttons {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
      justify-content: flex-end;
      position: relative;
      z-index: 1;
    }

    .site-footer {
      background: #171111;
      color: rgba(255, 250, 242, .78);
      border-top: 1px solid rgba(255, 255, 255, .08);
      padding: 30px 0 26px;
    }

    .footer-top {
      display: grid;
      grid-template-columns: 1.2fr .8fr .8fr .8fr;
      gap: 18px;
      align-items: start;
      padding-bottom: 24px;
      border-bottom: 1px solid rgba(255, 255, 255, .10);
    }

    .footer-brand .brand {
      color: var(--paper);
      margin-bottom: 16px;
    }

    .footer-brand p {
      max-width: 360px;
      color: rgba(255, 250, 242, .68);
      line-height: 1.82;
      font-size: 14px;
    }

    .footer-col h3 {
      font-size: 15px;
      color: var(--paper);
      margin-bottom: 14px;
      letter-spacing: -.01em;
    }

    .footer-links {
      display: grid;
      gap: 10px;
    }

    .footer-links a {
      color: rgba(255, 250, 242, .70);
      font-size: 14px;
      font-weight: 700;
      width: fit-content;
    }

    .footer-links a:hover {
      color: #ffd28a;
      transform: translateX(3px);
    }

    .footer-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      padding-top: 18px;
      font-size: 13px;
      color: rgba(255, 250, 242, .60);
      flex-wrap: wrap;
    }

    .footer-line {
      display: inline-flex;
      align-items: center;
      gap: 10px;
    }

    .footer-line b {
      color: #ffd28a;
    }

    .mobile-drawer {
      display: none;
    }

    .img-card {
      border-radius: 24px;
      background:
        radial-gradient(circle at 20% 20%, rgba(255, 255, 255, .14), transparent 25%),
        linear-gradient(180deg, rgba(255, 250, 242, .10), rgba(255, 255, 255, .04));
      border: 1px solid rgba(255, 255, 255, .12);
      min-height: 166px;
      position: relative;
      overflow: hidden;
    }

    .img-card::before {
      content: "";
      position: absolute;
      inset: 18px;
      border-radius: 18px;
      border: 1px dashed rgba(255, 250, 242, .20);
    }

    .img-card::after {
      content: "";
      position: absolute;
      left: 18px;
      right: 18px;
      top: 38%;
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(255, 250, 242, .28), transparent);
    }

    .info-strip {
      margin-top: 18px;
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .info-strip span {
      padding: 8px 10px;
      border-radius: 999px;
      background: rgba(255, 250, 242, .08);
      border: 1px solid rgba(255, 255, 255, .10);
      color: rgba(255, 250, 242, .78);
      font-size: 12px;
      font-weight: 800;
    }

    .subhead {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      font-weight: 900;
      letter-spacing: .03em;
      color: var(--wine-dark);
      text-transform: uppercase;
    }

    .subhead::before {
      content: "";
      width: 22px;
      height: 1px;
      background: linear-gradient(90deg, var(--wine), var(--amber));
    }

    .section-soft {
      background: linear-gradient(180deg, rgba(255, 250, 242, .22), rgba(255, 250, 242, .06));
    }

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

    .card-note {
      padding: 18px;
      border-radius: 22px;
      background: rgba(255, 250, 242, .82);
      border: 1px solid var(--line);
      color: var(--muted);
      box-shadow: var(--shadow);
    }

    .card-note strong {
      display: block;
      color: var(--ink);
      font-size: 16px;
      margin-bottom: 6px;
    }

    .tiny {
      font-size: 13px;
    }

    @media (max-width: 1199px) {
      .hero-panel {
        grid-template-columns: 1fr .92fr;
      }

      .updates-layout,
      .faq-wrap,
      .case-grid,
      .pricing-wrap,
      .footer-top {
        grid-template-columns: 1fr;
      }

      .recommend-panel,
      .faq-intro {
        position: relative;
        top: auto;
      }

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

      .feature-card.wide {
        grid-row: auto;
        grid-column: 1 / -1;
      }

      .steps {
        grid-template-columns: repeat(3, 1fr);
      }

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

      .footer-top {
        gap: 24px;
      }
    }

    @media (max-width: 991px) {
      .nav {
        height: 76px;
      }

      .nav-links {
        display: none;
      }

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

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

      .hero-panel {
        grid-template-columns: 1fr;
        padding: 26px;
      }

      .hero-copy h1 {
        max-width: 100%;
      }

      .hero-board {
        max-width: 760px;
      }

      .section {
        padding: 72px 0;
      }

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

      .timeline-wrap::before {
        display: none;
      }

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

      .pricing-wrap {
        grid-template-columns: 1fr;
      }

      .price-card.recommended {
        min-height: auto;
      }

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

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

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

    @media (max-width: 767px) {
      body {
        font-size: 15px;
      }

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

      .hero {
        padding: 24px 0 64px;
      }

      .hero-panel {
        border-radius: 28px;
        gap: 28px;
      }

      .hero-copy h1 {
        font-size: clamp(32px, 9vw, 38px);
      }

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

      .hero-actions,
      .cta-buttons {
        flex-direction: column;
        align-items: stretch;
      }

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

      .hero-data {
        gap: 10px;
      }

      .data-badge {
        flex: 1 1 160px;
      }

      .feature-grid,
      .wall-grid,
      .steps,
      .grid-two {
        grid-template-columns: 1fr;
      }

      .feature-card,
      .step-card,
      .post-card,
      .price-card,
      .case-card,
      .wall-card,
      .faq-intro,
      .timeline-wrap,
      .card-note {
        padding: 22px;
        border-radius: 22px;
      }

      .post-title {
        font-size: 18px;
      }

      .case-card h3,
      .feature-card h3 {
        font-size: 21px;
      }

      summary.faq-q {
        padding: 18px 18px;
        font-size: 17px;
      }

      .faq-a {
        padding: 0 18px 18px;
      }

      .screen-stage {
        padding: 14px;
        border-radius: 22px;
      }

      .screen-row {
        grid-template-columns: 1fr 56px;
      }

      .cta-box {
        border-radius: 26px;
      }

      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }

      .board-mini {
        grid-template-columns: 1fr;
      }

      .mobile-drawer {
        display: block;
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--ease), opacity var(--ease);
        opacity: 0;
        background: rgba(255, 250, 242, .98);
        border-top: 1px solid var(--line);
      }

      .mobile-drawer.open {
        max-height: 360px;
        opacity: 1;
      }

      .mobile-drawer .inner {
        padding: 14px 20px 20px;
        display: grid;
        gap: 12px;
      }

      .mobile-drawer .links {
        display: grid;
        gap: 6px;
      }

      .mobile-drawer .links a {
        padding: 12px 0;
        border-bottom: 1px solid var(--line);
        color: var(--ink);
        font-weight: 800;
      }

      .mobile-drawer .actions {
        display: grid;
        gap: 10px;
        margin-top: 4px;
      }

      .mobile-drawer .actions .btn {
        width: 100%;
      }
    }

    @media (max-width: 420px) {
      .nav {
        gap: 14px;
      }

      .brand-text strong {
        font-size: 16px;
      }

      .brand-text span {
        display: none;
      }

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

      .hero-panel {
        padding: 22px;
      }

      .data-badge {
        min-width: 0;
        padding: 13px 14px;
      }

      .data-badge strong {
        font-size: 20px;
      }

      .btn {
        width: 100%;
      }

      .post-meta {
        gap: 8px;
      }

      .rank-item {
        grid-template-columns: 32px 1fr;
      }

      .rank-trend {
        grid-column: 2 / -1;
        margin-left: 44px;
      }

      .board-top {
        flex-direction: column;
        align-items: flex-start;
      }

      .footer-top {
        gap: 18px;
      }
    }

/* roulang page: article */
:root {
      --ink: #1c1717;
      --ink-2: #2b2221;
      --charcoal: #130f10;
      --wine: #8f2131;
      --wine-dark: #651727;
      --amber: #d99a3a;
      --amber-soft: #fff1d5;
      --sand: #f7f0e6;
      --sand-2: #efe4d6;
      --paper: #fffaf2;
      --white: #ffffff;
      --muted: #766a62;
      --slate: #71807f;
      --line: rgba(73, 55, 45, .14);
      --line-strong: rgba(143, 33, 49, .28);
      --shadow: 0 18px 48px rgba(33, 22, 18, .10);
      --shadow-strong: 0 24px 70px rgba(33, 22, 18, .16);
      --radius-sm: 14px;
      --radius: 22px;
      --radius-lg: 32px;
      --container: 1200px;
      --ease: 180ms ease;
      --font: PingFang SC, Microsoft YaHei, Noto Sans SC, Heiti SC, Arial, sans-serif;
    }

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

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

    body {
      font-family: var(--font);
      color: var(--ink);
      background:
        radial-gradient(circle at 8% 4%, rgba(217, 154, 58, .18), transparent 30%),
        radial-gradient(circle at 92% 10%, rgba(143, 33, 49, .13), transparent 28%),
        linear-gradient(180deg, #fff8ef 0%, var(--sand) 44%, #fbf6ee 100%);
      line-height: 1.72;
      font-size: 16px;
      overflow-x: hidden;
    }

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

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

    button,
    input,
    textarea {
      font: inherit;
    }

    button {
      border: 0;
      cursor: pointer;
      background: transparent;
    }

    input,
    textarea {
      border: 0;
      outline: 0;
    }

    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    textarea:focus-visible {
      outline: 3px solid rgba(217, 154, 58, .52);
      outline-offset: 3px;
    }

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

    .section {
      padding: 92px 0;
      position: relative;
    }

    .section-tight {
      padding: 72px 0;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      border-radius: 999px;
      color: var(--wine-dark);
      background: rgba(255, 241, 213, .88);
      border: 1px solid rgba(217, 154, 58, .34);
      font-size: 13px;
      font-weight: 700;
      letter-spacing: .03em;
      width: fit-content;
    }

    .eyebrow::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 99px;
      background: linear-gradient(135deg, var(--wine), var(--amber));
      box-shadow: 0 0 0 5px rgba(217, 154, 58, .14);
      flex: 0 0 auto;
    }

    .muted {
      color: var(--muted);
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(255, 248, 239, .86);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--line);
      transition: box-shadow var(--ease), background var(--ease);
    }

    .site-header.is-scrolled {
      background: rgba(255, 250, 242, .96);
      box-shadow: 0 12px 36px rgba(33, 22, 18, .08);
    }

    .nav {
      height: 80px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 22px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: max-content;
      font-weight: 900;
      color: var(--ink);
      letter-spacing: -.02em;
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      border-radius: 15px;
      background:
        linear-gradient(135deg, rgba(143, 33, 49, .96), rgba(217, 154, 58, .88)),
        var(--wine);
      position: relative;
      box-shadow: 0 12px 28px rgba(143, 33, 49, .22);
      overflow: hidden;
      flex: 0 0 auto;
    }

    .brand-mark::before,
    .brand-mark::after {
      content: "";
      position: absolute;
      inset: 8px 10px;
      border: 2px solid rgba(255, 250, 242, .78);
      border-radius: 8px;
    }

    .brand-mark::after {
      width: 9px;
      height: 9px;
      inset: 16px auto auto 17px;
      border-radius: 2px;
      background: rgba(255, 250, 242, .9);
      transform: rotate(45deg);
    }

    .brand-text {
      display: flex;
      flex-direction: column;
      line-height: 1.12;
    }

    .brand-text strong {
      font-size: 18px;
    }

    .brand-text span {
      font-size: 12px;
      color: var(--muted);
      font-weight: 700;
      margin-top: 3px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      flex: 1;
    }

    .nav-links a {
      padding: 10px 13px;
      border-radius: 999px;
      color: #4c403b;
      font-weight: 700;
      font-size: 14px;
    }

    .nav-links a:hover,
    .nav-links a.active {
      color: var(--wine-dark);
      background: rgba(143, 33, 49, .08);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 44px;
      padding: 12px 18px;
      border-radius: 999px;
      font-weight: 800;
      font-size: 14px;
      letter-spacing: .01em;
      border: 1px solid transparent;
      transition: transform var(--ease), box-shadow var(--ease), background var(--ease), border-color var(--ease), color var(--ease);
      white-space: nowrap;
    }

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

    .btn:active {
      transform: translateY(0) scale(.98);
    }

    .btn-primary {
      color: #fffaf2;
      background: linear-gradient(135deg, var(--wine-dark), var(--wine) 48%, #be7734 100%);
      box-shadow: 0 14px 32px rgba(143, 33, 49, .24);
    }

    .btn-primary:hover {
      box-shadow: 0 18px 42px rgba(143, 33, 49, .32);
    }

    .btn-secondary {
      color: var(--ink);
      background: rgba(255, 250, 242, .72);
      border-color: rgba(73, 55, 45, .16);
    }

    .btn-secondary:hover {
      background: var(--amber-soft);
      border-color: rgba(217, 154, 58, .42);
    }

    .btn-dark {
      color: var(--paper);
      background: rgba(28, 23, 23, .92);
      border-color: rgba(255, 255, 255, .12);
    }

    .btn-dark:hover {
      background: var(--charcoal);
      box-shadow: 0 16px 36px rgba(19, 15, 16, .18);
    }

    .btn-ghost {
      color: var(--wine-dark);
      background: rgba(255, 250, 242, .25);
      border-color: rgba(143, 33, 49, .22);
    }

    .btn-ghost:hover {
      background: rgba(255, 241, 213, .86);
      border-color: rgba(217, 154, 58, .48);
    }

    .menu-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: 14px;
      border: 1px solid var(--line);
      background: rgba(255, 250, 242, .82);
      color: var(--ink);
      align-items: center;
      justify-content: center;
      flex-direction: column;
      gap: 5px;
    }

    .menu-toggle span {
      width: 19px;
      height: 2px;
      background: currentColor;
      border-radius: 99px;
      transition: transform var(--ease), opacity var(--ease);
    }

    .menu-toggle.is-open span:nth-child(1) {
      transform: translateY(7px) rotate(45deg);
    }

    .menu-toggle.is-open span:nth-child(2) {
      opacity: 0;
    }

    .menu-toggle.is-open span:nth-child(3) {
      transform: translateY(-7px) rotate(-45deg);
    }

    .article-hero {
      padding: 54px 0 34px;
      background:
        radial-gradient(circle at 15% 18%, rgba(217, 154, 58, .20), transparent 29%),
        radial-gradient(circle at 88% 12%, rgba(143, 33, 49, .14), transparent 24%);
    }

    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 9px;
      flex-wrap: wrap;
      color: var(--muted);
      font-size: 14px;
      font-weight: 700;
      margin-bottom: 24px;
    }

    .breadcrumb a {
      color: var(--wine-dark);
      padding: 5px 9px;
      border-radius: 999px;
      background: rgba(143, 33, 49, .06);
    }

    .breadcrumb a:hover {
      background: rgba(217, 154, 58, .18);
      color: var(--wine);
      transform: translateY(-1px);
    }

    .breadcrumb .sep {
      color: rgba(118, 106, 98, .55);
    }

    .article-shell {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 330px;
      gap: 34px;
      align-items: start;
    }

    .article-head-card {
      border-radius: var(--radius-lg);
      border: 1px solid rgba(73, 55, 45, .13);
      background:
        linear-gradient(135deg, rgba(255, 250, 242, .94), rgba(255, 241, 213, .45)),
        var(--paper);
      box-shadow: var(--shadow);
      padding: clamp(28px, 4vw, 46px);
      position: relative;
      overflow: hidden;
    }

    .article-head-card::before {
      content: "";
      position: absolute;
      right: -78px;
      top: -92px;
      width: 240px;
      height: 240px;
      border-radius: 999px;
      background: radial-gradient(circle, rgba(143, 33, 49, .18), transparent 68%);
      pointer-events: none;
    }

    .article-title {
      position: relative;
      z-index: 1;
      max-width: 820px;
      font-size: clamp(32px, 4.6vw, 54px);
      line-height: 1.15;
      letter-spacing: -.045em;
      color: var(--ink);
      margin: 18px 0 18px;
      word-break: break-word;
    }

    .article-summary {
      position: relative;
      z-index: 1;
      max-width: 820px;
      color: #5d514b;
      font-size: 18px;
      line-height: 1.82;
      margin-bottom: 24px;
    }

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

    .meta-pill,
    .data-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      border-radius: 999px;
      padding: 8px 12px;
      font-size: 13px;
      font-weight: 800;
      color: var(--ink-2);
      background: rgba(255, 250, 242, .80);
      border: 1px solid rgba(73, 55, 45, .14);
    }

    .data-badge {
      color: var(--wine-dark);
      background: rgba(255, 241, 213, .78);
      border-color: rgba(217, 154, 58, .34);
    }

    .data-badge strong {
      color: var(--wine);
      font-size: 16px;
      letter-spacing: -.02em;
    }

    .lead-panel {
      border-radius: var(--radius-lg);
      border: 1px solid rgba(143, 33, 49, .18);
      background:
        linear-gradient(145deg, rgba(19, 15, 16, .96), rgba(43, 34, 33, .94) 58%, rgba(101, 23, 39, .90));
      color: var(--paper);
      padding: 26px;
      box-shadow: var(--shadow-strong);
      position: sticky;
      top: 104px;
      overflow: hidden;
    }

    .lead-panel::before {
      content: "";
      position: absolute;
      right: -56px;
      top: -48px;
      width: 150px;
      height: 150px;
      border-radius: 999px;
      background: rgba(217, 154, 58, .18);
      filter: blur(2px);
    }

    .lead-panel h2 {
      position: relative;
      z-index: 1;
      font-size: 24px;
      line-height: 1.25;
      letter-spacing: -.03em;
      margin: 14px 0 10px;
    }

    .lead-panel p {
      position: relative;
      z-index: 1;
      color: rgba(255, 250, 242, .74);
      font-size: 15px;
      margin-bottom: 18px;
    }

    .mini-form {
      position: relative;
      z-index: 1;
      display: grid;
      gap: 10px;
    }

    .field {
      display: flex;
      flex-direction: column;
      gap: 7px;
    }

    .field label {
      font-size: 13px;
      color: rgba(255, 250, 242, .76);
      font-weight: 800;
    }

    .field input {
      width: 100%;
      min-height: 46px;
      border-radius: 15px;
      padding: 12px 14px;
      color: var(--paper);
      background: rgba(255, 250, 242, .10);
      border: 1px solid rgba(255, 250, 242, .16);
      transition: border-color var(--ease), background var(--ease), box-shadow var(--ease);
    }

    .field input::placeholder {
      color: rgba(255, 250, 242, .45);
    }

    .field input:focus {
      border-color: rgba(217, 154, 58, .70);
      background: rgba(255, 250, 242, .14);
      box-shadow: 0 0 0 4px rgba(217, 154, 58, .12);
    }

    .lead-note {
      color: rgba(255, 250, 242, .55);
      font-size: 12px;
      line-height: 1.6;
      margin-top: 10px;
    }

    .side-stats {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
      margin-top: 18px;
    }

    .side-stat {
      border-radius: 18px;
      padding: 14px;
      background: rgba(255, 250, 242, .08);
      border: 1px solid rgba(255, 250, 242, .13);
    }

    .side-stat b {
      display: block;
      color: var(--amber);
      font-size: 22px;
      line-height: 1;
      margin-bottom: 5px;
    }

    .side-stat span {
      color: rgba(255, 250, 242, .66);
      font-size: 12px;
      font-weight: 700;
    }

    .main-area {
      padding: 48px 0 0;
    }

    .reader-grid {
      display: grid;
      grid-template-columns: minmax(0, 820px) 330px;
      gap: 34px;
      align-items: start;
    }

    .article-card {
      background: rgba(255, 250, 242, .92);
      border: 1px solid rgba(73, 55, 45, .13);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow);
      padding: clamp(24px, 4vw, 46px);
      overflow: hidden;
    }

    .article-content {
      color: #2f2926;
      font-size: 17px;
      line-height: 1.86;
      word-break: break-word;
    }

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

    .article-content p {
      margin: 1em 0;
    }

    .article-content h2 {
      font-size: clamp(24px, 3vw, 32px);
      line-height: 1.28;
      letter-spacing: -.03em;
      margin: 2.05em 0 .75em;
      color: var(--ink);
      padding-top: .2em;
    }

    .article-content h3 {
      font-size: clamp(20px, 2.2vw, 24px);
      line-height: 1.36;
      letter-spacing: -.02em;
      margin: 1.7em 0 .65em;
      color: var(--ink-2);
    }

    .article-content h4 {
      font-size: 18px;
      margin: 1.5em 0 .5em;
      color: var(--wine-dark);
    }

    .article-content a {
      color: var(--wine-dark);
      font-weight: 800;
      text-decoration: underline;
      text-decoration-color: rgba(217, 154, 58, .55);
      text-underline-offset: 4px;
      text-decoration-thickness: 1px;
    }

    .article-content a:hover {
      color: var(--wine);
      text-decoration-color: var(--wine);
    }

    .article-content ul,
    .article-content ol {
      margin: 1em 0 1em 1.25em;
      padding-left: .8em;
    }

    .article-content li {
      margin: .42em 0;
      padding-left: .12em;
    }

    .article-content blockquote {
      margin: 1.45em 0;
      padding: 20px 22px;
      border-left: 4px solid var(--amber);
      border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
      background: rgba(255, 241, 213, .60);
      color: #4b403a;
      font-weight: 700;
    }

    .article-content img {
      border-radius: 20px;
      border: 1px solid rgba(73, 55, 45, .12);
      box-shadow: 0 12px 30px rgba(33, 22, 18, .08);
      margin: 26px auto 10px;
    }

    .article-content figure {
      margin: 28px 0;
    }

    .article-content figcaption {
      text-align: center;
      color: var(--muted);
      font-size: 13px;
      margin-top: 10px;
    }

    .article-content table {
      width: 100%;
      border-collapse: separate;
      border-spacing: 0;
      overflow: hidden;
      border: 1px solid var(--line);
      border-radius: 18px;
      margin: 26px 0;
      background: #fff;
    }

    .article-content th,
    .article-content td {
      padding: 13px 14px;
      border-bottom: 1px solid rgba(73, 55, 45, .10);
      text-align: left;
      vertical-align: top;
    }

    .article-content th {
      background: rgba(255, 241, 213, .65);
      color: var(--ink);
      font-weight: 900;
    }

    .article-content tr:last-child td {
      border-bottom: 0;
    }

    .article-content code {
      padding: 2px 7px;
      border-radius: 8px;
      background: rgba(143, 33, 49, .08);
      color: var(--wine-dark);
      font-family: Consolas, Menlo, Monaco, monospace;
      font-size: .92em;
    }

    .article-content pre {
      overflow: auto;
      padding: 18px;
      border-radius: 18px;
      background: #201a19;
      color: #fff6e9;
      border: 1px solid rgba(217, 154, 58, .20);
      margin: 24px 0;
    }

    .empty-state {
      text-align: center;
      padding: 58px 20px;
      border-radius: 24px;
      background:
        radial-gradient(circle at 50% 0, rgba(217, 154, 58, .15), transparent 34%),
        rgba(255, 250, 242, .80);
      border: 1px dashed rgba(143, 33, 49, .24);
    }

    .empty-icon {
      width: 62px;
      height: 62px;
      border-radius: 22px;
      margin: 0 auto 18px;
      background: linear-gradient(135deg, rgba(143, 33, 49, .94), rgba(217, 154, 58, .86));
      position: relative;
      box-shadow: 0 16px 34px rgba(143, 33, 49, .20);
    }

    .empty-icon::before {
      content: "";
      position: absolute;
      left: 15px;
      right: 15px;
      top: 17px;
      height: 4px;
      border-radius: 99px;
      background: rgba(255, 250, 242, .90);
      box-shadow: 0 11px 0 rgba(255, 250, 242, .82), 0 22px 0 rgba(255, 250, 242, .70);
    }

    .empty-state h2 {
      font-size: 28px;
      line-height: 1.25;
      margin-bottom: 10px;
      color: var(--ink);
    }

    .empty-state p {
      color: var(--muted);
      max-width: 520px;
      margin: 0 auto 22px;
    }

    .sidebar {
      display: grid;
      gap: 18px;
      position: sticky;
      top: 104px;
    }

    .side-card {
      border-radius: var(--radius);
      background: rgba(255, 250, 242, .84);
      border: 1px solid rgba(73, 55, 45, .13);
      box-shadow: 0 14px 36px rgba(33, 22, 18, .07);
      padding: 22px;
    }

    .side-card h2,
    .side-card h3 {
      font-size: 20px;
      line-height: 1.3;
      letter-spacing: -.02em;
      margin-bottom: 12px;
      color: var(--ink);
    }

    .toc-list,
    .check-list {
      display: grid;
      gap: 10px;
      list-style: none;
    }

    .toc-list a,
    .check-list li {
      display: flex;
      gap: 10px;
      align-items: flex-start;
      color: #5c514c;
      font-size: 14px;
      font-weight: 700;
    }

    .toc-list a {
      padding: 10px 10px;
      border-radius: 14px;
      border: 1px solid transparent;
    }

    .toc-list a:hover {
      color: var(--wine-dark);
      background: rgba(255, 241, 213, .58);
      border-color: rgba(217, 154, 58, .24);
      transform: translateX(3px);
    }

    .toc-list a::before,
    .check-list li::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 99px;
      margin-top: 8px;
      background: linear-gradient(135deg, var(--wine), var(--amber));
      flex: 0 0 auto;
    }

    .notice-card {
      background:
        linear-gradient(145deg, rgba(255, 241, 213, .72), rgba(255, 250, 242, .92));
      border-color: rgba(217, 154, 58, .30);
    }

    .notice-card p {
      color: var(--muted);
      font-size: 14px;
      margin-top: 8px;
    }

    .related-section {
      padding: 74px 0 92px;
    }

    .section-head {
      display: grid;
      grid-template-columns: minmax(0, 1fr) minmax(280px, 430px);
      gap: 28px;
      align-items: end;
      margin-bottom: 34px;
    }

    .section-head h2 {
      font-size: clamp(28px, 3.4vw, 40px);
      line-height: 1.18;
      letter-spacing: -.03em;
      color: var(--ink);
      margin-top: 14px;
    }

    .section-head p {
      color: var(--muted);
      font-size: 17px;
    }

    .related-grid {
      display: grid;
      grid-template-columns: 1.05fr .95fr .95fr;
      gap: 18px;
      align-items: stretch;
    }

    .related-card {
      position: relative;
      display: flex;
      flex-direction: column;
      gap: 14px;
      min-height: 210px;
      border-radius: var(--radius);
      padding: 24px;
      border: 1px solid rgba(73, 55, 45, .13);
      background: rgba(255, 250, 242, .86);
      box-shadow: 0 14px 36px rgba(33, 22, 18, .07);
      overflow: hidden;
    }

    .related-card:first-child {
      min-height: 242px;
      background:
        radial-gradient(circle at 88% 18%, rgba(217, 154, 58, .18), transparent 28%),
        linear-gradient(145deg, rgba(255, 250, 242, .96), rgba(255, 241, 213, .55));
    }

    .related-card:hover {
      transform: translateY(-5px);
      border-color: rgba(143, 33, 49, .26);
      box-shadow: var(--shadow);
    }

    .related-card .tag {
      width: fit-content;
      display: inline-flex;
      align-items: center;
      border-radius: 999px;
      padding: 6px 10px;
      color: var(--wine-dark);
      background: rgba(143, 33, 49, .07);
      border: 1px solid rgba(143, 33, 49, .12);
      font-size: 12px;
      font-weight: 900;
    }

    .related-card h3 {
      font-size: 22px;
      line-height: 1.32;
      letter-spacing: -.025em;
      color: var(--ink);
    }

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

    .related-card .more {
      margin-top: auto;
      color: var(--wine-dark);
      font-weight: 900;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .related-card .more::after {
      content: "→";
      transition: transform var(--ease);
    }

    .related-card:hover .more::after {
      transform: translateX(4px);
    }

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

    .faq-item {
      border: 1px solid rgba(73, 55, 45, .13);
      border-radius: 20px;
      background: rgba(255, 250, 242, .78);
      overflow: hidden;
      box-shadow: 0 10px 28px rgba(33, 22, 18, .05);
    }

    .faq-question {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 18px 20px;
      color: var(--ink);
      text-align: left;
      font-weight: 900;
    }

    .faq-question span {
      font-size: 16px;
    }

    .faq-question i {
      width: 26px;
      height: 26px;
      border-radius: 99px;
      background: rgba(143, 33, 49, .08);
      border: 1px solid rgba(143, 33, 49, .12);
      position: relative;
      flex: 0 0 auto;
    }

    .faq-question i::before,
    .faq-question i::after {
      content: "";
      position: absolute;
      left: 7px;
      right: 7px;
      top: 12px;
      height: 2px;
      border-radius: 99px;
      background: var(--wine-dark);
      transition: transform var(--ease);
    }

    .faq-question i::after {
      transform: rotate(90deg);
    }

    .faq-item.is-open .faq-question i::after {
      transform: rotate(0);
    }

    .faq-answer {
      display: none;
      padding: 0 20px 20px;
      color: var(--muted);
      font-size: 15px;
    }

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

    .cta-band {
      padding: 0 0 92px;
    }

    .cta-card {
      border-radius: var(--radius-lg);
      padding: clamp(28px, 5vw, 48px);
      color: var(--paper);
      background:
        radial-gradient(circle at 18% 18%, rgba(217, 154, 58, .26), transparent 28%),
        linear-gradient(135deg, var(--charcoal), #2a1719 54%, var(--wine-dark));
      border: 1px solid rgba(255, 250, 242, .10);
      box-shadow: var(--shadow-strong);
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 26px;
      align-items: center;
      overflow: hidden;
      position: relative;
    }

    .cta-card::after {
      content: "";
      position: absolute;
      right: 8%;
      top: -80px;
      width: 210px;
      height: 210px;
      border-radius: 999px;
      background: rgba(217, 154, 58, .14);
      pointer-events: none;
    }

    .cta-card h2 {
      position: relative;
      z-index: 1;
      font-size: clamp(28px, 3.6vw, 42px);
      line-height: 1.16;
      letter-spacing: -.035em;
      margin-bottom: 10px;
    }

    .cta-card p {
      position: relative;
      z-index: 1;
      color: rgba(255, 250, 242, .72);
      max-width: 680px;
    }

    .cta-actions {
      position: relative;
      z-index: 1;
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
      justify-content: flex-end;
    }

    .site-footer {
      background:
        radial-gradient(circle at 12% 0%, rgba(217, 154, 58, .12), transparent 24%),
        linear-gradient(180deg, #171212 0%, #100d0d 100%);
      color: rgba(255, 250, 242, .82);
      padding: 66px 0 28px;
      border-top: 1px solid rgba(255, 250, 242, .08);
    }

    .footer-top {
      display: grid;
      grid-template-columns: minmax(280px, 1.3fr) repeat(3, minmax(150px, .7fr));
      gap: 34px;
      padding-bottom: 38px;
      border-bottom: 1px solid rgba(255, 250, 242, .10);
    }

    .footer-brand .brand {
      color: var(--paper);
      margin-bottom: 16px;
    }

    .footer-brand .brand-text span {
      color: rgba(255, 250, 242, .58);
    }

    .footer-brand p {
      color: rgba(255, 250, 242, .62);
      max-width: 410px;
      font-size: 14px;
    }

    .footer-col h3 {
      color: var(--paper);
      font-size: 15px;
      margin-bottom: 14px;
      letter-spacing: .02em;
    }

    .footer-links {
      display: grid;
      gap: 10px;
    }

    .footer-links a {
      color: rgba(255, 250, 242, .62);
      font-size: 14px;
      width: fit-content;
    }

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

    .footer-bottom {
      padding-top: 22px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      color: rgba(255, 250, 242, .52);
      font-size: 13px;
      flex-wrap: wrap;
    }

    .footer-line b {
      color: var(--paper);
    }

    @media (max-width: 1100px) {
      .article-shell,
      .reader-grid {
        grid-template-columns: minmax(0, 1fr);
      }

      .lead-panel,
      .sidebar {
        position: static;
      }

      .lead-panel {
        display: grid;
        grid-template-columns: minmax(0, 1fr) minmax(260px, 360px);
        gap: 20px;
        align-items: end;
      }

      .side-stats {
        grid-column: 1 / -1;
      }

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

      .related-card:first-child {
        grid-column: 1 / -1;
      }

      .footer-top {
        grid-template-columns: 1.2fr 1fr 1fr;
      }

      .footer-brand {
        grid-column: 1 / -1;
      }
    }

    @media (max-width: 920px) {
      .menu-toggle {
        display: inline-flex;
      }

      .nav {
        height: 74px;
      }

      .nav-links,
      .nav-actions {
        position: fixed;
        left: 20px;
        right: 20px;
        top: 82px;
        display: none;
        background: rgba(255, 250, 242, .98);
        border: 1px solid var(--line);
        box-shadow: var(--shadow);
        border-radius: 24px;
        padding: 16px;
        z-index: 60;
      }

      .nav-links {
        flex-direction: column;
        align-items: stretch;
        gap: 6px;
      }

      .nav-actions {
        top: 276px;
        flex-direction: column;
        align-items: stretch;
      }

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

      .nav-links a,
      .nav-actions .btn {
        width: 100%;
        justify-content: center;
      }

      .article-hero {
        padding-top: 34px;
      }

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

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

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

    @media (max-width: 720px) {
      .container {
        width: min(100% - 28px, var(--container));
      }

      .section,
      .related-section {
        padding: 56px 0;
      }

      .cta-band {
        padding-bottom: 58px;
      }

      .article-head-card,
      .article-card,
      .lead-panel,
      .side-card,
      .cta-card {
        border-radius: 24px;
      }

      .article-summary {
        font-size: 16px;
      }

      .article-meta {
        align-items: stretch;
      }

      .meta-pill,
      .data-badge {
        max-width: 100%;
      }

      .article-content {
        font-size: 16px;
        line-height: 1.82;
      }

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

      .related-card:first-child {
        grid-column: auto;
      }

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

      .cta-actions {
        justify-content: stretch;
      }

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

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

      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }

    @media (max-width: 520px) {
      .brand-text span {
        display: none;
      }

      .brand-mark {
        width: 38px;
        height: 38px;
        border-radius: 14px;
      }

      .nav {
        gap: 12px;
      }

      .article-title {
        font-size: 32px;
      }

      .article-head-card,
      .article-card {
        padding: 22px;
      }

      .breadcrumb {
        font-size: 13px;
      }

      .side-stats {
        grid-template-columns: 1fr;
      }

      .btn {
        width: 100%;
      }

      .article-content table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
      }
    }