/* roulang page: index */
:root {
      --bg: #12090f;
      --bg-deep: #090508;
      --panel: rgba(34, 18, 29, 0.82);
      --panel-strong: rgba(47, 23, 38, 0.92);
      --panel-soft: rgba(255, 247, 235, 0.06);
      --primary: #9f2945;
      --primary-dark: #751a33;
      --primary-light: #d55d72;
      --gold: #e1aa58;
      --gold-soft: rgba(225, 170, 88, 0.14);
      --text: #fff7ef;
      --muted: #c8b8be;
      --faint: #93848c;
      --border: rgba(255, 221, 180, 0.16);
      --border-strong: rgba(225, 170, 88, 0.34);
      --shadow: 0 24px 70px rgba(0, 0, 0, 0.38);
      --shadow-soft: 0 14px 36px rgba(0, 0, 0, 0.28);
      --radius-xl: 28px;
      --radius-lg: 22px;
      --radius-md: 16px;
      --radius-sm: 12px;
      --container: 1180px;
      --nav-h: 78px;
      --ease: 180ms ease;
    }

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

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

    body {
      min-height: 100vh;
      color: var(--text);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", Arial, sans-serif;
      font-size: 16px;
      line-height: 1.75;
      background:
        radial-gradient(circle at 18% 12%, rgba(159, 41, 69, 0.22), transparent 34%),
        radial-gradient(circle at 88% 8%, rgba(225, 170, 88, 0.13), transparent 28%),
        linear-gradient(180deg, #160a12 0%, var(--bg) 48%, #0b0609 100%);
      overflow-x: hidden;
    }

    body::before {
      content: "";
      position: fixed;
      inset: 0;
      z-index: -2;
      pointer-events: none;
      opacity: 0.18;
      background-image:
        linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
      background-size: 36px 36px;
      mask-image: radial-gradient(circle at center, #000 0%, transparent 82%);
    }

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

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

    button,
    input {
      font: inherit;
    }

    button {
      border: 0;
      cursor: pointer;
      color: inherit;
      background: none;
    }

    input {
      width: 100%;
      border: 1px solid var(--border);
      outline: 0;
      color: var(--text);
      background: rgba(9, 5, 8, 0.58);
      border-radius: 14px;
      padding: 14px 16px;
      transition: border-color var(--ease), box-shadow var(--ease), background var(--ease);
    }

    input::placeholder {
      color: rgba(200, 184, 190, 0.68);
    }

    input:focus,
    button:focus-visible,
    a:focus-visible {
      outline: 2px solid rgba(225, 170, 88, 0.84);
      outline-offset: 3px;
    }

    input:focus {
      border-color: var(--gold);
      box-shadow: 0 0 0 4px rgba(225, 170, 88, 0.12);
      background: rgba(18, 9, 15, 0.92);
    }

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 80;
      min-height: var(--nav-h);
      background: rgba(12, 6, 10, 0.78);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(255, 221, 180, 0.10);
      transition: box-shadow var(--ease), background var(--ease);
    }

    .site-header.is-scrolled {
      background: rgba(10, 5, 8, 0.94);
      box-shadow: 0 18px 44px rgba(0, 0, 0, 0.26);
    }

    .nav {
      min-height: var(--nav-h);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: 0;
      font-weight: 800;
      letter-spacing: -0.02em;
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      display: grid;
      place-items: center;
      flex: 0 0 auto;
      border-radius: 14px;
      color: #fff;
      background:
        linear-gradient(135deg, rgba(159, 41, 69, 0.98), rgba(225, 170, 88, 0.72)),
        radial-gradient(circle at 20% 20%, rgba(255,255,255,0.26), transparent 34%);
      box-shadow: 0 14px 30px rgba(159, 41, 69, 0.28);
    }

    .brand-text {
      display: flex;
      flex-direction: column;
      line-height: 1.18;
    }

    .brand-text strong {
      font-size: 16px;
      color: var(--text);
      white-space: nowrap;
    }

    .brand-text span {
      font-size: 12px;
      font-weight: 600;
      color: var(--gold);
      letter-spacing: 0.08em;
    }

    .nav-links {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      list-style: none;
    }

    .nav-links a {
      position: relative;
      display: inline-flex;
      align-items: center;
      min-height: 42px;
      padding: 0 14px;
      border-radius: 999px;
      color: var(--muted);
      font-size: 14px;
      font-weight: 650;
    }

    .nav-links a:hover,
    .nav-links a.active {
      color: var(--text);
      background: rgba(255, 247, 235, 0.08);
    }

    .nav-links a.active::after {
      content: "";
      position: absolute;
      left: 50%;
      bottom: 6px;
      width: 18px;
      height: 2px;
      border-radius: 99px;
      background: var(--gold);
      transform: translateX(-50%);
    }

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

    .menu-toggle {
      display: none;
      width: 46px;
      height: 46px;
      border-radius: 14px;
      border: 1px solid var(--border);
      background: rgba(255, 247, 235, 0.06);
    }

    .menu-toggle span {
      display: block;
      width: 20px;
      height: 2px;
      margin: 5px auto;
      border-radius: 9px;
      background: var(--text);
      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);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 46px;
      padding: 0 18px;
      border-radius: 15px;
      font-size: 14px;
      font-weight: 750;
      letter-spacing: 0.01em;
      border: 1px solid transparent;
      transition: transform var(--ease), box-shadow var(--ease), background var(--ease), border-color var(--ease), color var(--ease);
      user-select: none;
      white-space: nowrap;
    }

    .btn-primary {
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      box-shadow: 0 14px 28px rgba(159, 41, 69, 0.30);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 18px 38px rgba(159, 41, 69, 0.42);
      background: linear-gradient(135deg, #b73555, #841d3a);
    }

    .btn-secondary {
      color: var(--text);
      border-color: var(--border-strong);
      background: rgba(255, 247, 235, 0.05);
    }

    .btn-secondary:hover {
      transform: translateY(-2px);
      border-color: rgba(225, 170, 88, 0.66);
      background: rgba(225, 170, 88, 0.12);
      box-shadow: 0 16px 34px rgba(0, 0, 0, 0.22);
    }

    .btn-ghost {
      color: var(--gold);
      padding: 0;
      min-height: auto;
      border-radius: 0;
      border-bottom: 1px solid rgba(225, 170, 88, 0.36);
    }

    .btn-ghost:hover {
      color: #ffd38a;
      border-color: #ffd38a;
      transform: translateX(3px);
    }

    .badge,
    .tag {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      width: fit-content;
      border-radius: 999px;
      border: 1px solid rgba(225, 170, 88, 0.24);
      background: var(--gold-soft);
      color: #ffdca1;
      font-size: 13px;
      font-weight: 750;
      line-height: 1;
      padding: 8px 12px;
    }

    .tag.is-muted {
      color: var(--muted);
      border-color: rgba(255, 247, 235, 0.12);
      background: rgba(255, 247, 235, 0.06);
    }

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

    .section-head {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 28px;
      margin-bottom: 34px;
    }

    .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--gold);
      font-size: 14px;
      font-weight: 800;
      letter-spacing: 0.08em;
      margin-bottom: 10px;
    }

    .section-kicker::before {
      content: "";
      width: 22px;
      height: 2px;
      border-radius: 99px;
      background: var(--gold);
    }

    .section-title {
      max-width: 760px;
      font-size: clamp(28px, 4vw, 38px);
      line-height: 1.22;
      letter-spacing: -0.04em;
      font-weight: 820;
    }

    .section-desc {
      max-width: 560px;
      color: var(--muted);
      font-size: 16px;
      line-height: 1.85;
    }

    .hero {
      position: relative;
      min-height: calc(100vh - var(--nav-h));
      display: grid;
      align-items: center;
      overflow: hidden;
      padding: 72px 0 64px;
    }

    .hero::before {
      content: "";
      position: absolute;
      inset: 0;
      z-index: -2;
      background:
        linear-gradient(90deg, rgba(9,5,8,0.92) 0%, rgba(18,9,15,0.78) 46%, rgba(18,9,15,0.34) 100%),
        url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
      transform: scale(1.02);
    }

    .hero::after {
      content: "";
      position: absolute;
      inset: 0;
      z-index: -1;
      background:
        radial-gradient(circle at 70% 20%, rgba(225, 170, 88, 0.15), transparent 28%),
        linear-gradient(180deg, transparent 76%, var(--bg) 100%);
    }

    .hero-layout {
      display: grid;
      grid-template-columns: 1.03fr 0.97fr;
      gap: 54px;
      align-items: center;
    }

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

    .hero-brand {
      margin-bottom: 20px;
    }

    .hero h1 {
      font-size: clamp(36px, 5.3vw, 58px);
      line-height: 1.13;
      letter-spacing: -0.055em;
      font-weight: 860;
      text-wrap: balance;
    }

    .hero h1 .accent {
      color: #ffd28a;
      text-shadow: 0 0 36px rgba(225, 170, 88, 0.24);
    }

    .hero-subtitle {
      margin-top: 22px;
      max-width: 690px;
      color: #e1d3d7;
      font-size: clamp(16px, 2vw, 19px);
      line-height: 1.9;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-top: 34px;
    }

    .hero-note {
      margin-top: 22px;
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      color: var(--muted);
      font-size: 14px;
    }

    .hero-note span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 8px 11px;
      border-radius: 999px;
      background: rgba(255, 247, 235, 0.06);
      border: 1px solid rgba(255, 247, 235, 0.10);
    }

    .cinema-panel {
      position: relative;
      min-height: 500px;
      border-radius: var(--radius-xl);
      overflow: hidden;
      background: rgba(9, 5, 8, 0.44);
      border: 1px solid rgba(255, 221, 180, 0.18);
      box-shadow: var(--shadow);
      transform: rotate(1deg);
    }

    .cinema-panel::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        linear-gradient(180deg, rgba(9,5,8,0.10) 0%, rgba(9,5,8,0.86) 82%),
        url("/assets/images/coverpic/cover-1.webp") center/cover no-repeat;
      transition: transform 500ms ease;
    }

    .cinema-panel:hover::before {
      transform: scale(1.045);
    }

    .cinema-panel-content {
      position: absolute;
      inset: auto 24px 24px 24px;
      padding: 24px;
      border-radius: 24px;
      border: 1px solid rgba(255, 221, 180, 0.18);
      background: rgba(14, 7, 12, 0.82);
      backdrop-filter: blur(14px);
    }

    .panel-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      padding: 14px 0;
      border-bottom: 1px solid rgba(255, 247, 235, 0.10);
    }

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

    .panel-row:first-of-type {
      padding-top: 18px;
    }

    .panel-label {
      color: var(--muted);
      font-size: 14px;
    }

    .panel-value {
      color: var(--text);
      font-weight: 800;
      text-align: right;
    }

    .overview {
      margin-top: -22px;
      position: relative;
      z-index: 3;
    }

    .overview-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1px;
      overflow: hidden;
      border: 1px solid var(--border);
      border-radius: 24px;
      background: rgba(255, 221, 180, 0.10);
      box-shadow: var(--shadow-soft);
    }

    .overview-item {
      padding: 24px;
      background: rgba(26, 13, 22, 0.88);
    }

    .overview-icon {
      width: 38px;
      height: 38px;
      display: grid;
      place-items: center;
      margin-bottom: 14px;
      border-radius: 13px;
      color: var(--gold);
      background: rgba(225, 170, 88, 0.12);
    }

    .overview-item strong {
      display: block;
      font-size: 18px;
      line-height: 1.35;
      margin-bottom: 5px;
    }

    .overview-item p {
      color: var(--muted);
      font-size: 14px;
      line-height: 1.65;
    }

    .guide-wrap {
      display: grid;
      grid-template-columns: 0.82fr 1.18fr;
      gap: 38px;
      align-items: start;
    }

    .guide-intro {
      position: sticky;
      top: calc(var(--nav-h) + 24px);
      padding: 30px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border);
      background:
        linear-gradient(180deg, rgba(255, 247, 235, 0.07), rgba(255, 247, 235, 0.03)),
        rgba(34, 18, 29, 0.72);
      box-shadow: var(--shadow-soft);
    }

    .guide-intro p {
      color: var(--muted);
      margin-top: 16px;
    }

    .guide-steps {
      position: relative;
      display: grid;
      gap: 18px;
    }

    .step-card {
      position: relative;
      display: grid;
      grid-template-columns: 72px 1fr;
      gap: 20px;
      padding: 24px;
      border-radius: 22px;
      border: 1px solid var(--border);
      background: rgba(28, 14, 24, 0.74);
      box-shadow: 0 12px 30px rgba(0, 0, 0, 0.18);
      transition: transform var(--ease), border-color var(--ease), background var(--ease);
    }

    .step-card:hover {
      transform: translateY(-3px);
      border-color: var(--border-strong);
      background: rgba(39, 20, 33, 0.86);
    }

    .step-num {
      width: 56px;
      height: 56px;
      display: grid;
      place-items: center;
      border-radius: 18px;
      color: #23120c;
      font-size: 18px;
      font-weight: 900;
      background: linear-gradient(135deg, #ffd38a, #c98338);
      box-shadow: 0 16px 30px rgba(225, 170, 88, 0.18);
    }

    .step-card h3 {
      font-size: 21px;
      line-height: 1.35;
      margin-bottom: 6px;
    }

    .step-card p {
      color: var(--muted);
      margin-bottom: 12px;
    }

    .updates {
      background:
        radial-gradient(circle at 10% 20%, rgba(159, 41, 69, 0.16), transparent 30%),
        linear-gradient(180deg, rgba(255, 247, 235, 0.025), transparent);
    }

    .updates-grid {
      display: grid;
      grid-template-columns: 1.04fr 0.96fr;
      gap: 24px;
      align-items: stretch;
    }

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

    .post-card:hover {
      transform: translateY(-4px);
      border-color: var(--border-strong);
      box-shadow: var(--shadow);
    }

    .post-media {
      position: relative;
      aspect-ratio: 16 / 9;
      overflow: hidden;
      background: rgba(255, 247, 235, 0.06);
    }

    .post-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 520ms ease;
    }

    .post-card:hover .post-media img {
      transform: scale(1.055);
    }

    .post-media::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 45%, rgba(9, 5, 8, 0.72) 100%);
    }

    .post-body {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }

    .post-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      align-items: center;
      color: var(--faint);
      font-size: 13px;
      margin-bottom: 14px;
    }

    .post-title {
      font-size: 24px;
      line-height: 1.35;
      font-weight: 820;
      margin-bottom: 12px;
    }

    .post-title a:hover {
      color: #ffd38a;
    }

    .post-excerpt {
      color: var(--muted);
      line-height: 1.78;
      margin-bottom: 20px;
    }

    .post-body .btn-ghost {
      margin-top: auto;
      align-self: flex-start;
    }

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

    .post-mini {
      display: grid;
      grid-template-columns: 132px 1fr;
      gap: 16px;
      padding: 14px;
      border-radius: 20px;
      border: 1px solid var(--border);
      background: rgba(34, 18, 29, 0.70);
      transition: transform var(--ease), border-color var(--ease), background var(--ease);
    }

    .post-mini:hover {
      transform: translateY(-2px);
      border-color: var(--border-strong);
      background: rgba(46, 23, 38, 0.86);
    }

    .post-mini-thumb {
      position: relative;
      overflow: hidden;
      min-height: 112px;
      border-radius: 16px;
      background: rgba(255, 247, 235, 0.06);
    }

    .post-mini-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 420ms ease;
    }

    .post-mini:hover .post-mini-thumb img {
      transform: scale(1.06);
    }

    .post-mini h3 {
      font-size: 17px;
      line-height: 1.45;
      margin-bottom: 8px;
    }

    .post-mini h3 a:hover {
      color: #ffd38a;
    }

    .post-mini p {
      color: var(--muted);
      font-size: 14px;
      line-height: 1.65;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
      margin-bottom: 10px;
    }

    .empty-state {
      grid-column: 1 / -1;
      padding: 42px;
      text-align: center;
      border-radius: var(--radius-xl);
      border: 1px dashed rgba(225, 170, 88, 0.40);
      background:
        radial-gradient(circle at 50% 0%, rgba(225, 170, 88, 0.14), transparent 38%),
        rgba(34, 18, 29, 0.72);
      box-shadow: var(--shadow-soft);
    }

    .empty-icon {
      width: 62px;
      height: 62px;
      display: grid;
      place-items: center;
      margin: 0 auto 14px;
      border-radius: 22px;
      color: var(--gold);
      background: rgba(225, 170, 88, 0.12);
      font-size: 28px;
    }

    .empty-state strong {
      display: block;
      font-size: 22px;
      margin-bottom: 8px;
    }

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

    .feature-layout {
      display: grid;
      grid-template-columns: 0.92fr 1.08fr;
      gap: 44px;
      align-items: center;
    }

    .feature-copy {
      padding: 34px;
      border-radius: var(--radius-xl);
      border: 1px solid var(--border);
      background:
        linear-gradient(180deg, rgba(255, 247, 235, 0.075), rgba(255, 247, 235, 0.025)),
        rgba(26, 13, 22, 0.74);
      box-shadow: var(--shadow-soft);
    }

    .feature-copy p {
      color: var(--muted);
      margin-top: 16px;
    }

    .feature-cards {
      display: grid;
      gap: 16px;
    }

    .feature-card {
      display: grid;
      grid-template-columns: 52px 1fr;
      gap: 16px;
      padding: 22px;
      border-radius: 20px;
      border: 1px solid var(--border);
      background: rgba(34, 18, 29, 0.72);
      transition: transform var(--ease), border-color var(--ease), background var(--ease);
    }

    .feature-card:hover {
      transform: translateX(4px);
      border-color: var(--border-strong);
      background: rgba(44, 22, 36, 0.88);
    }

    .feature-icon {
      width: 48px;
      height: 48px;
      display: grid;
      place-items: center;
      border-radius: 16px;
      color: var(--gold);
      background: rgba(225, 170, 88, 0.12);
      font-size: 22px;
    }

    .feature-card h3 {
      font-size: 19px;
      line-height: 1.35;
      margin-bottom: 5px;
    }

    .feature-card p {
      color: var(--muted);
      line-height: 1.7;
      font-size: 15px;
    }

    .visual-showcase {
      padding-top: 0;
    }

    .showcase-card {
      position: relative;
      overflow: hidden;
      min-height: 420px;
      border-radius: 30px;
      border: 1px solid var(--border);
      box-shadow: var(--shadow);
      background: var(--panel);
    }

    .showcase-card img {
      width: 100%;
      height: 100%;
      min-height: 420px;
      object-fit: cover;
      filter: saturate(0.92) contrast(1.06);
    }

    .showcase-card::after {
      content: "";
      position: absolute;
      inset: 0;
      background:
        linear-gradient(90deg, rgba(9,5,8,0.88) 0%, rgba(9,5,8,0.62) 42%, rgba(9,5,8,0.12) 100%),
        linear-gradient(180deg, transparent 58%, rgba(9,5,8,0.72) 100%);
    }

    .showcase-content {
      position: absolute;
      z-index: 2;
      left: 38px;
      bottom: 36px;
      max-width: 560px;
    }

    .showcase-content h2 {
      margin-top: 16px;
      font-size: clamp(28px, 4vw, 42px);
      line-height: 1.2;
      letter-spacing: -0.045em;
    }

    .showcase-content p {
      color: #e4d5d9;
      margin: 14px 0 24px;
      font-size: 17px;
      line-height: 1.85;
    }

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

    .evidence-card {
      padding: 26px;
      border-radius: 22px;
      border: 1px solid var(--border);
      background:
        linear-gradient(180deg, rgba(255, 247, 235, 0.06), rgba(255, 247, 235, 0.025)),
        rgba(34, 18, 29, 0.74);
      transition: transform var(--ease), border-color var(--ease);
    }

    .evidence-card:hover {
      transform: translateY(-3px);
      border-color: var(--border-strong);
    }

    .evidence-card strong {
      display: block;
      color: var(--gold);
      font-size: 30px;
      line-height: 1;
      margin-bottom: 14px;
    }

    .evidence-card h3 {
      font-size: 20px;
      margin-bottom: 8px;
    }

    .evidence-card p {
      color: var(--muted);
      font-size: 15px;
      line-height: 1.75;
    }

    .faq-wrap {
      display: grid;
      grid-template-columns: 0.78fr 1.22fr;
      gap: 38px;
      align-items: start;
    }

    .faq-aside {
      padding: 30px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border);
      background: rgba(26, 13, 22, 0.78);
      box-shadow: var(--shadow-soft);
    }

    .faq-aside p {
      color: var(--muted);
      margin-top: 12px;
    }

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

    .faq-item {
      border: 1px solid var(--border);
      border-radius: 20px;
      overflow: hidden;
      background: rgba(34, 18, 29, 0.72);
      transition: border-color var(--ease), background var(--ease);
    }

    .faq-item.is-open {
      border-color: var(--border-strong);
      background: rgba(43, 21, 35, 0.90);
    }

    .faq-question {
      width: 100%;
      min-height: 62px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding: 20px 22px;
      text-align: left;
      font-size: 17px;
      font-weight: 780;
    }

    .faq-question .mark {
      width: 30px;
      height: 30px;
      flex: 0 0 auto;
      display: grid;
      place-items: center;
      border-radius: 50%;
      color: var(--gold);
      background: rgba(225, 170, 88, 0.12);
      transition: transform var(--ease);
    }

    .faq-item.is-open .faq-question .mark {
      transform: rotate(45deg);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 240ms ease;
    }

    .faq-answer p {
      padding: 0 22px 22px;
      color: var(--muted);
      line-height: 1.85;
    }

    .subscribe {
      padding-top: 0;
    }

    .subscribe-box {
      display: grid;
      grid-template-columns: 1fr 0.82fr;
      gap: 28px;
      align-items: center;
      padding: 34px;
      border-radius: var(--radius-xl);
      border: 1px solid rgba(225, 170, 88, 0.24);
      background:
        radial-gradient(circle at 20% 20%, rgba(159, 41, 69, 0.24), transparent 34%),
        linear-gradient(135deg, rgba(53, 24, 39, 0.95), rgba(18, 9, 15, 0.95));
      box-shadow: var(--shadow);
    }

    .subscribe-box h2 {
      font-size: clamp(26px, 3.6vw, 38px);
      line-height: 1.25;
      letter-spacing: -0.04em;
      margin-bottom: 12px;
    }

    .subscribe-box p {
      color: var(--muted);
    }

    .subscribe-form {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 12px;
      padding: 10px;
      border-radius: 20px;
      background: rgba(9, 5, 8, 0.42);
      border: 1px solid var(--border);
    }

    .subscribe-form .btn {
      min-height: 52px;
    }

    .site-footer {
      padding: 54px 0 28px;
      background: rgba(7, 4, 6, 0.88);
      border-top: 1px solid rgba(255, 221, 180, 0.12);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.25fr 0.75fr 0.75fr;
      gap: 34px;
      align-items: start;
    }

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

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

    .footer-desc {
      max-width: 520px;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.8;
    }

    .footer-col h3 {
      font-size: 15px;
      margin-bottom: 14px;
      color: var(--gold);
    }

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

    .footer-links a,
    .footer-links span {
      color: var(--muted);
      font-size: 14px;
    }

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

    .copyright {
      margin-top: 36px;
      padding-top: 20px;
      border-top: 1px solid rgba(255, 247, 235, 0.08);
      color: var(--faint);
      font-size: 13px;
      display: flex;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
    }

    @media (max-width: 1024px) {
      :root {
        --nav-h: 72px;
      }

      .nav-links {
        position: fixed;
        top: var(--nav-h);
        left: 20px;
        right: 20px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 14px;
        border-radius: 22px;
        border: 1px solid var(--border);
        background: rgba(12, 6, 10, 0.98);
        box-shadow: var(--shadow);
      }

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

      .nav-links a {
        justify-content: center;
        min-height: 48px;
      }

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

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

      .hero-layout,
      .guide-wrap,
      .feature-layout,
      .faq-wrap,
      .subscribe-box {
        grid-template-columns: 1fr;
      }

      .guide-intro {
        position: relative;
        top: auto;
      }

      .cinema-panel {
        min-height: 420px;
        transform: none;
      }

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

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

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

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

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

    @media (max-width: 768px) {
      .container {
        width: min(100% - 28px, var(--container));
      }

      .section {
        padding: 64px 0;
      }

      .section-head {
        display: block;
      }

      .section-desc {
        margin-top: 12px;
      }

      .hero {
        min-height: auto;
        padding: 54px 0 52px;
      }

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

      .btn {
        width: 100%;
        min-height: 50px;
      }

      .hero-note span {
        width: 100%;
      }

      .cinema-panel {
        min-height: 360px;
        border-radius: 24px;
      }

      .cinema-panel-content {
        inset: auto 14px 14px 14px;
        padding: 18px;
        border-radius: 20px;
      }

      .overview-bar {
        grid-template-columns: 1fr;
        border-radius: 22px;
      }

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

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

      .post-mini-thumb {
        aspect-ratio: 16 / 9;
        min-height: auto;
      }

      .showcase-card,
      .showcase-card img {
        min-height: 500px;
      }

      .showcase-content {
        left: 20px;
        right: 20px;
        bottom: 22px;
      }

      .subscribe-form {
        grid-template-columns: 1fr;
      }

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

      .brand-text strong {
        font-size: 14px;
      }

      .brand-text span {
        display: none;
      }
    }

    @media (max-width: 520px) {
      .hero h1 {
        font-size: 33px;
      }

      .post-title {
        font-size: 21px;
      }

      .overview-item,
      .post-body,
      .feature-copy,
      .faq-aside,
      .subscribe-box {
        padding: 22px;
      }

      .copyright {
        display: block;
      }

      .copyright span + span {
        display: block;
        margin-top: 8px;
      }
    }

/* roulang page: article */
:root {
      --bg: #12090f;
      --bg-deep: #090508;
      --panel: rgba(34, 18, 29, 0.82);
      --panel-strong: rgba(47, 23, 38, 0.92);
      --panel-soft: rgba(255, 247, 235, 0.06);
      --primary: #9f2945;
      --primary-dark: #751a33;
      --primary-light: #d55d72;
      --gold: #e1aa58;
      --gold-soft: rgba(225, 170, 88, 0.14);
      --text: #fff7ef;
      --muted: #c8b8be;
      --faint: #93848c;
      --border: rgba(255, 221, 180, 0.16);
      --border-strong: rgba(225, 170, 88, 0.34);
      --shadow: 0 24px 70px rgba(0, 0, 0, 0.38);
      --shadow-soft: 0 14px 36px rgba(0, 0, 0, 0.28);
      --radius-xl: 28px;
      --radius-lg: 22px;
      --radius-md: 16px;
      --radius-sm: 12px;
      --container: 1180px;
      --nav-h: 78px;
      --ease: 180ms ease;
    }

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

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

    body {
      min-height: 100vh;
      margin: 0;
      color: var(--text);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", Arial, sans-serif;
      font-size: 16px;
      line-height: 1.75;
      background:
        radial-gradient(circle at 18% 12%, rgba(159, 41, 69, 0.22), transparent 34%),
        radial-gradient(circle at 88% 8%, rgba(225, 170, 88, 0.13), transparent 28%),
        linear-gradient(180deg, #160a12 0%, var(--bg) 48%, #0b0609 100%);
      overflow-x: hidden;
    }

    body::before {
      content: "";
      position: fixed;
      inset: 0;
      z-index: -2;
      pointer-events: none;
      opacity: 0.18;
      background-image:
        linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
      background-size: 36px 36px;
      mask-image: radial-gradient(circle at center, #000 0%, transparent 82%);
    }

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

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

    ul,
    ol {
      margin: 0;
      padding: 0;
    }

    p {
      margin: 0;
    }

    button,
    input {
      font: inherit;
    }

    button {
      border: 0;
      cursor: pointer;
      color: inherit;
      background: none;
    }

    input {
      width: 100%;
      border: 1px solid var(--border);
      outline: 0;
      color: var(--text);
      background: rgba(9, 5, 8, 0.58);
      border-radius: 14px;
      padding: 14px 16px;
      transition: border-color var(--ease), box-shadow var(--ease), background var(--ease);
    }

    input::placeholder {
      color: rgba(200, 184, 190, 0.68);
    }

    input:focus,
    button:focus-visible,
    a:focus-visible {
      outline: 2px solid rgba(225, 170, 88, 0.84);
      outline-offset: 3px;
    }

    input:focus {
      border-color: var(--gold);
      box-shadow: 0 0 0 4px rgba(225, 170, 88, 0.12);
      background: rgba(18, 9, 15, 0.92);
    }

    .container {
      width: min(var(--container), calc(100% - 40px));
      margin: 0 auto;
      padding-left: 0;
      padding-right: 0;
      max-width: none;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 80;
      min-height: var(--nav-h);
      background: rgba(12, 6, 10, 0.78);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(255, 221, 180, 0.10);
      transition: box-shadow var(--ease), background var(--ease);
    }

    .site-header.is-scrolled {
      background: rgba(10, 5, 8, 0.94);
      box-shadow: 0 18px 44px rgba(0, 0, 0, 0.26);
    }

    .nav {
      min-height: var(--nav-h);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: 0;
      font-weight: 800;
      letter-spacing: -0.02em;
    }

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

    .brand-mark {
      width: 42px;
      height: 42px;
      display: grid;
      place-items: center;
      flex: 0 0 auto;
      border-radius: 14px;
      color: #fff;
      background:
        linear-gradient(135deg, rgba(159, 41, 69, 0.98), rgba(225, 170, 88, 0.72)),
        radial-gradient(circle at 20% 20%, rgba(255,255,255,0.26), transparent 34%);
      box-shadow: 0 14px 30px rgba(159, 41, 69, 0.28);
    }

    .brand-text {
      display: flex;
      flex-direction: column;
      line-height: 1.18;
    }

    .brand-text strong {
      font-size: 16px;
      color: var(--text);
      white-space: nowrap;
    }

    .brand-text span {
      font-size: 12px;
      font-weight: 600;
      color: var(--gold);
      letter-spacing: 0.08em;
    }

    .nav-links {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      list-style: none;
    }

    .nav-links a {
      position: relative;
      display: inline-flex;
      align-items: center;
      min-height: 42px;
      padding: 0 14px;
      border-radius: 999px;
      color: var(--muted);
      font-size: 14px;
      font-weight: 650;
    }

    .nav-links a:hover,
    .nav-links a.active {
      color: var(--text);
      background: rgba(255, 247, 235, 0.08);
    }

    .nav-links a.active::after {
      content: "";
      position: absolute;
      left: 50%;
      bottom: 6px;
      width: 18px;
      height: 2px;
      border-radius: 99px;
      background: var(--gold);
      transform: translateX(-50%);
    }

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

    .menu-toggle {
      display: none;
      width: 46px;
      height: 46px;
      border-radius: 14px;
      border: 1px solid var(--border);
      background: rgba(255, 247, 235, 0.06);
    }

    .menu-toggle:hover {
      border-color: var(--border-strong);
      background: rgba(255, 247, 235, 0.10);
    }

    .menu-toggle span {
      display: block;
      width: 20px;
      height: 2px;
      margin: 5px auto;
      border-radius: 9px;
      background: var(--text);
      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);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 46px;
      padding: 0 18px;
      gap: 8px;
      border-radius: 14px;
      border: 1px solid transparent;
      font-size: 14px;
      font-weight: 750;
      line-height: 1;
      transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease), background var(--ease), color var(--ease);
    }

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

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

    .btn-primary {
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      border-color: rgba(255, 255, 255, 0.08);
      box-shadow: 0 16px 34px rgba(159, 41, 69, 0.30);
    }

    .btn-primary:hover {
      color: #fff;
      background: linear-gradient(135deg, #b43252, #7d1c36);
      box-shadow: 0 20px 44px rgba(159, 41, 69, 0.42);
    }

    .btn-ghost {
      color: var(--text);
      background: rgba(255, 247, 235, 0.06);
      border-color: var(--border);
    }

    .btn-ghost:hover {
      color: var(--text);
      background: rgba(225, 170, 88, 0.10);
      border-color: var(--border-strong);
      box-shadow: 0 16px 34px rgba(0, 0, 0, 0.18);
    }

    .badge-soft {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      width: fit-content;
      min-height: 32px;
      padding: 5px 12px;
      border-radius: 999px;
      color: #ffe4b8;
      font-size: 13px;
      font-weight: 750;
      background: rgba(225, 170, 88, 0.12);
      border: 1px solid rgba(225, 170, 88, 0.24);
    }

    .badge-soft::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 99px;
      background: var(--gold);
      box-shadow: 0 0 0 4px rgba(225, 170, 88, 0.12);
    }

    .section {
      padding: 86px 0;
    }

    .section-heading {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 28px;
      margin-bottom: 30px;
    }

    .section-kicker {
      margin-bottom: 10px;
      color: var(--gold);
      font-size: 13px;
      font-weight: 800;
      letter-spacing: 0.13em;
    }

    .section-title {
      margin: 0;
      color: var(--text);
      font-size: clamp(28px, 4vw, 38px);
      font-weight: 800;
      line-height: 1.2;
      letter-spacing: -0.035em;
    }

    .section-desc {
      max-width: 620px;
      margin-top: 12px;
      color: var(--muted);
      font-size: 16px;
      line-height: 1.85;
    }

    .page-top {
      position: relative;
      padding: 54px 0 0;
      overflow: hidden;
    }

    .page-top::before {
      content: "";
      position: absolute;
      inset: 0 0 auto 0;
      height: 420px;
      z-index: -1;
      background:
        linear-gradient(180deg, rgba(9, 5, 8, 0.30), var(--bg) 88%),
        linear-gradient(90deg, rgba(9, 5, 8, 0.92), rgba(18, 9, 15, 0.68), rgba(9, 5, 8, 0.96)),
        url("/assets/images/backpic/back-2.jpg") center/cover no-repeat;
      opacity: 0.92;
    }

    .breadcrumb-wrap {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px;
      color: var(--muted);
      font-size: 14px;
      margin-bottom: 26px;
    }

    .breadcrumb-wrap a {
      color: rgba(255, 247, 239, 0.78);
      border-bottom: 1px solid transparent;
    }

    .breadcrumb-wrap a:hover {
      color: var(--gold);
      border-color: rgba(225, 170, 88, 0.55);
    }

    .breadcrumb-wrap span {
      color: rgba(200, 184, 190, 0.70);
    }

    .breadcrumb-current {
      max-width: 520px;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    .article-hero {
      display: grid;
      grid-template-columns: minmax(0, 1.02fr) minmax(360px, 0.78fr);
      gap: 34px;
      align-items: stretch;
      padding-bottom: 50px;
    }

    .article-head-card {
      min-height: 100%;
      padding: clamp(26px, 4vw, 42px);
      border-radius: var(--radius-xl);
      border: 1px solid var(--border);
      background:
        linear-gradient(145deg, rgba(47, 23, 38, 0.84), rgba(18, 9, 15, 0.78)),
        radial-gradient(circle at 12% 16%, rgba(225, 170, 88, 0.12), transparent 34%);
      box-shadow: var(--shadow);
    }

    .article-title {
      margin: 20px 0 18px;
      color: var(--text);
      font-size: clamp(30px, 5vw, 50px);
      line-height: 1.16;
      font-weight: 850;
      letter-spacing: -0.05em;
    }

    .article-summary {
      max-width: 760px;
      color: var(--muted);
      font-size: 17px;
      line-height: 1.9;
      margin-bottom: 24px;
    }

    .article-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      list-style: none;
    }

    .article-meta li {
      display: inline-flex;
      align-items: center;
      min-height: 34px;
      padding: 5px 12px;
      border-radius: 999px;
      color: var(--muted);
      font-size: 13px;
      font-weight: 700;
      background: rgba(255, 247, 235, 0.06);
      border: 1px solid rgba(255, 221, 180, 0.12);
    }

    .article-cover {
      position: relative;
      min-height: 360px;
      overflow: hidden;
      border-radius: var(--radius-xl);
      border: 1px solid var(--border);
      box-shadow: var(--shadow);
      background: var(--panel);
    }

    .article-cover img {
      width: 100%;
      height: 100%;
      min-height: 360px;
      object-fit: cover;
      transform: scale(1.02);
      filter: saturate(0.86) contrast(1.04);
    }

    .article-cover::after {
      content: "";
      position: absolute;
      inset: 0;
      background:
        linear-gradient(180deg, rgba(9, 5, 8, 0.10), rgba(9, 5, 8, 0.72)),
        radial-gradient(circle at 70% 12%, rgba(225, 170, 88, 0.18), transparent 34%);
    }

    .cover-caption {
      position: absolute;
      left: 22px;
      right: 22px;
      bottom: 22px;
      z-index: 2;
      padding: 18px;
      border-radius: 18px;
      background: rgba(9, 5, 8, 0.62);
      border: 1px solid rgba(255, 221, 180, 0.18);
      backdrop-filter: blur(14px);
    }

    .cover-caption strong {
      display: block;
      margin-bottom: 6px;
      color: var(--text);
      font-size: 18px;
    }

    .cover-caption span {
      color: var(--muted);
      font-size: 14px;
      line-height: 1.65;
    }

    .content-section {
      padding: 34px 0 78px;
    }

    .article-layout {
      display: grid;
      grid-template-columns: minmax(0, 820px) 300px;
      gap: 34px;
      align-items: start;
    }

    .reader-card {
      overflow: hidden;
      border-radius: var(--radius-xl);
      border: 1px solid var(--border);
      background: rgba(20, 10, 17, 0.84);
      box-shadow: var(--shadow-soft);
    }

    .reader-note {
      display: flex;
      gap: 14px;
      padding: 18px 22px;
      color: var(--muted);
      font-size: 14px;
      background: rgba(225, 170, 88, 0.08);
      border-bottom: 1px solid rgba(225, 170, 88, 0.16);
    }

    .reader-note strong {
      color: #ffe1aa;
      white-space: nowrap;
    }

    .article-body {
      padding: clamp(24px, 4vw, 42px);
      color: #f4e9e0;
      font-size: 17px;
      line-height: 1.9;
      word-break: break-word;
    }

    .article-body h2 {
      margin: 2.1em 0 0.8em;
      color: var(--text);
      font-size: clamp(24px, 3vw, 32px);
      line-height: 1.28;
      font-weight: 800;
      letter-spacing: -0.035em;
    }

    .article-body h2:first-child {
      margin-top: 0;
    }

    .article-body h3 {
      margin: 1.8em 0 0.65em;
      color: #ffe4c0;
      font-size: 21px;
      line-height: 1.35;
      font-weight: 760;
    }

    .article-body p {
      margin: 0 0 1.15em;
    }

    .article-body a {
      color: #ffd08a;
      border-bottom: 1px solid rgba(225, 170, 88, 0.45);
    }

    .article-body a:hover {
      color: #ffe1b0;
      border-color: rgba(225, 170, 88, 0.88);
    }

    .article-body ul,
    .article-body ol {
      margin: 0 0 1.3em 1.25em;
      padding-left: 1em;
    }

    .article-body li {
      margin: 0.46em 0;
      padding-left: 0.1em;
    }

    .article-body blockquote {
      margin: 1.6em 0;
      padding: 18px 20px;
      border-left: 4px solid var(--gold);
      border-radius: 0 18px 18px 0;
      color: #f7e7d9;
      background: rgba(225, 170, 88, 0.10);
    }

    .article-body img {
      margin: 1.8em auto;
      border-radius: 18px;
      border: 1px solid rgba(255, 221, 180, 0.14);
      box-shadow: 0 18px 44px rgba(0, 0, 0, 0.28);
    }

    .article-body hr {
      height: 1px;
      margin: 2.2em 0;
      border: 0;
      background: linear-gradient(90deg, transparent, rgba(225, 170, 88, 0.38), transparent);
    }

    .article-body table {
      width: 100%;
      margin: 1.6em 0;
      border-collapse: collapse;
      overflow: hidden;
      border-radius: 16px;
      background: rgba(255, 247, 235, 0.04);
    }

    .article-body th,
    .article-body td {
      padding: 13px 14px;
      border: 1px solid rgba(255, 221, 180, 0.14);
      color: #f6e9de;
      text-align: left;
    }

    .article-body th {
      color: #ffe0ae;
      background: rgba(225, 170, 88, 0.09);
      font-weight: 750;
    }

    .empty-state {
      padding: 30px;
      border-radius: var(--radius-lg);
      border: 1px dashed rgba(225, 170, 88, 0.35);
      background:
        radial-gradient(circle at 18% 0%, rgba(225, 170, 88, 0.12), transparent 34%),
        rgba(255, 247, 235, 0.05);
      text-align: center;
    }

    .empty-state .empty-icon {
      width: 58px;
      height: 58px;
      display: grid;
      place-items: center;
      margin: 0 auto 16px;
      border-radius: 20px;
      color: var(--gold);
      font-size: 26px;
      background: rgba(225, 170, 88, 0.12);
      border: 1px solid rgba(225, 170, 88, 0.24);
    }

    .empty-state h2 {
      margin: 0 0 10px;
      color: var(--text);
      font-size: 24px;
    }

    .empty-state p {
      max-width: 520px;
      margin: 0 auto 20px;
      color: var(--muted);
      font-size: 15px;
    }

    .sidebar {
      position: sticky;
      top: calc(var(--nav-h) + 22px);
      display: grid;
      gap: 18px;
    }

    .side-card {
      padding: 20px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border);
      background: rgba(34, 18, 29, 0.74);
      box-shadow: 0 16px 36px rgba(0, 0, 0, 0.22);
    }

    .side-card h2,
    .side-card h3 {
      margin: 0 0 12px;
      color: var(--text);
      font-size: 18px;
      font-weight: 800;
    }

    .side-card p {
      color: var(--muted);
      font-size: 14px;
      line-height: 1.75;
    }

    .side-list {
      display: grid;
      gap: 12px;
      list-style: none;
    }

    .side-list a,
    .side-list span {
      display: block;
      padding: 12px 13px;
      border-radius: 14px;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.55;
      background: rgba(255, 247, 235, 0.05);
      border: 1px solid rgba(255, 221, 180, 0.10);
    }

    .side-list a:hover {
      color: var(--text);
      border-color: rgba(225, 170, 88, 0.32);
      background: rgba(225, 170, 88, 0.10);
      transform: translateY(-1px);
    }

    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .tag-cloud span,
    .tag-cloud a {
      display: inline-flex;
      align-items: center;
      min-height: 32px;
      padding: 5px 10px;
      border-radius: 999px;
      color: #f8dcae;
      font-size: 13px;
      font-weight: 700;
      background: rgba(225, 170, 88, 0.10);
      border: 1px solid rgba(225, 170, 88, 0.20);
    }

    .related-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 18px;
    }

    .info-card {
      position: relative;
      overflow: hidden;
      min-height: 100%;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border);
      background: rgba(34, 18, 29, 0.78);
      box-shadow: var(--shadow-soft);
      transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease), background var(--ease);
    }

    .info-card:hover {
      transform: translateY(-4px);
      border-color: rgba(225, 170, 88, 0.36);
      background: rgba(47, 23, 38, 0.88);
      box-shadow: 0 22px 52px rgba(0, 0, 0, 0.32);
    }

    .info-card-img {
      position: relative;
      overflow: hidden;
      aspect-ratio: 16 / 9;
      background: rgba(255, 247, 235, 0.06);
    }

    .info-card-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 360ms ease;
      filter: saturate(0.9) contrast(1.03);
    }

    .info-card-img::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent, rgba(9, 5, 8, 0.68));
    }

    .info-card:hover .info-card-img img {
      transform: scale(1.055);
    }

    .info-card-body {
      padding: 18px;
    }

    .info-card-body h3 {
      margin: 10px 0 8px;
      color: var(--text);
      font-size: 19px;
      line-height: 1.4;
      font-weight: 800;
    }

    .info-card:hover h3 {
      color: #ffe0ad;
    }

    .info-card-body p {
      color: var(--muted);
      font-size: 14px;
      line-height: 1.75;
      margin-bottom: 14px;
    }

    .card-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: #ffd08a;
      font-size: 14px;
      font-weight: 800;
    }

    .card-link:hover {
      color: #ffe4bb;
      gap: 9px;
    }

    .guide-panel {
      display: grid;
      grid-template-columns: 0.82fr 1.18fr;
      gap: 22px;
      align-items: stretch;
    }

    .guide-visual {
      position: relative;
      overflow: hidden;
      min-height: 360px;
      border-radius: var(--radius-xl);
      border: 1px solid var(--border);
      box-shadow: var(--shadow-soft);
      background: var(--panel);
    }

    .guide-visual img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      min-height: 360px;
      filter: saturate(0.86) brightness(0.84);
    }

    .guide-visual::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(9, 5, 8, 0.10), rgba(9, 5, 8, 0.76));
    }

    .guide-visual-text {
      position: absolute;
      z-index: 2;
      left: 24px;
      right: 24px;
      bottom: 24px;
    }

    .guide-visual-text h2 {
      margin: 12px 0 8px;
      color: var(--text);
      font-size: 27px;
      font-weight: 850;
      line-height: 1.24;
    }

    .guide-visual-text p {
      color: var(--muted);
      font-size: 15px;
      line-height: 1.8;
    }

    .steps {
      display: grid;
      gap: 14px;
    }

    .step-card {
      display: grid;
      grid-template-columns: 48px minmax(0, 1fr);
      gap: 14px;
      padding: 18px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border);
      background: rgba(34, 18, 29, 0.72);
      transition: transform var(--ease), border-color var(--ease), background var(--ease);
    }

    .step-card:hover {
      transform: translateX(3px);
      border-color: rgba(225, 170, 88, 0.34);
      background: rgba(47, 23, 38, 0.88);
    }

    .step-num {
      width: 48px;
      height: 48px;
      display: grid;
      place-items: center;
      border-radius: 16px;
      color: #fff;
      font-size: 16px;
      font-weight: 850;
      background: linear-gradient(135deg, rgba(159, 41, 69, 0.96), rgba(225, 170, 88, 0.72));
      box-shadow: 0 12px 26px rgba(159, 41, 69, 0.22);
    }

    .step-card h3 {
      margin: 0 0 5px;
      color: var(--text);
      font-size: 18px;
      font-weight: 800;
    }

    .step-card p {
      color: var(--muted);
      font-size: 14px;
      line-height: 1.75;
    }

    .faq-list {
      display: grid;
      gap: 14px;
      max-width: 920px;
      margin: 0 auto;
    }

    .faq-item {
      border-radius: var(--radius-lg);
      border: 1px solid var(--border);
      background: rgba(34, 18, 29, 0.72);
      overflow: hidden;
      transition: border-color var(--ease), background var(--ease);
    }

    .faq-item:hover {
      border-color: rgba(225, 170, 88, 0.30);
      background: rgba(47, 23, 38, 0.82);
    }

    .faq-question {
      width: 100%;
      min-height: 64px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding: 18px 22px;
      text-align: left;
      color: var(--text);
      font-weight: 800;
    }

    .faq-question span {
      display: inline-flex;
      align-items: center;
      gap: 12px;
    }

    .faq-question span::before {
      content: "问";
      width: 28px;
      height: 28px;
      display: grid;
      place-items: center;
      flex: 0 0 auto;
      border-radius: 10px;
      color: #ffe1af;
      font-size: 13px;
      background: rgba(225, 170, 88, 0.13);
      border: 1px solid rgba(225, 170, 88, 0.20);
    }

    .faq-question i {
      width: 26px;
      height: 26px;
      display: grid;
      place-items: center;
      flex: 0 0 auto;
      border-radius: 999px;
      color: var(--gold);
      font-style: normal;
      background: rgba(255, 247, 235, 0.06);
      transition: transform var(--ease), background var(--ease);
    }

    .faq-answer {
      display: none;
      padding: 0 22px 20px 62px;
      color: var(--muted);
      font-size: 15px;
      line-height: 1.8;
    }

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

    .faq-item.is-open .faq-question i {
      transform: rotate(45deg);
      background: rgba(225, 170, 88, 0.14);
    }

    .cta-band {
      position: relative;
      overflow: hidden;
      padding: 42px;
      border-radius: var(--radius-xl);
      border: 1px solid rgba(225, 170, 88, 0.26);
      background:
        radial-gradient(circle at 18% 22%, rgba(225, 170, 88, 0.20), transparent 28%),
        radial-gradient(circle at 88% 72%, rgba(159, 41, 69, 0.36), transparent 34%),
        linear-gradient(135deg, rgba(47, 23, 38, 0.94), rgba(15, 7, 12, 0.96));
      box-shadow: var(--shadow);
    }

    .cta-band::after {
      content: "";
      position: absolute;
      inset: 0;
      pointer-events: none;
      background-image: linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px);
      background-size: 100% 18px;
      opacity: 0.25;
    }

    .cta-content {
      position: relative;
      z-index: 2;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 28px;
    }

    .cta-content h2 {
      margin: 0 0 10px;
      color: var(--text);
      font-size: clamp(26px, 4vw, 38px);
      font-weight: 850;
      line-height: 1.2;
      letter-spacing: -0.04em;
    }

    .cta-content p {
      max-width: 690px;
      color: var(--muted);
      font-size: 16px;
      line-height: 1.85;
    }

    .cta-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      flex: 0 0 auto;
    }

    .site-footer {
      margin-top: 36px;
      padding: 62px 0 26px;
      background: linear-gradient(180deg, rgba(9, 5, 8, 0.08), rgba(5, 3, 5, 0.88));
      border-top: 1px solid rgba(255, 221, 180, 0.12);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.45fr) 0.7fr 0.8fr;
      gap: 38px;
      align-items: start;
    }

    .footer-brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 16px;
      color: var(--text);
      font-size: 18px;
      font-weight: 850;
    }

    .footer-desc {
      max-width: 560px;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.85;
    }

    .footer-col h3 {
      margin: 0 0 14px;
      color: var(--text);
      font-size: 16px;
      font-weight: 800;
    }

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

    .footer-links a,
    .footer-links span {
      color: var(--muted);
      font-size: 14px;
    }

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

    .copyright {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      margin-top: 42px;
      padding-top: 20px;
      border-top: 1px solid rgba(255, 221, 180, 0.10);
      color: var(--faint);
      font-size: 13px;
    }

    @media (max-width: 1024px) {
      :root {
        --nav-h: 72px;
      }

      .nav {
        gap: 14px;
      }

      .brand-text strong {
        font-size: 15px;
      }

      .nav-links {
        gap: 2px;
      }

      .nav-links a {
        padding: 0 10px;
      }

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

      .article-cover,
      .article-cover img {
        min-height: 300px;
      }

      .article-layout {
        grid-template-columns: 1fr;
      }

      .sidebar {
        position: static;
        grid-template-columns: repeat(3, minmax(0, 1fr));
      }

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

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

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

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

    @media (max-width: 860px) {
      .menu-toggle {
        display: block;
      }

      .nav-links {
        position: fixed;
        top: var(--nav-h);
        left: 20px;
        right: 20px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 14px;
        border-radius: 22px;
        background: rgba(13, 7, 11, 0.98);
        border: 1px solid var(--border);
        box-shadow: var(--shadow);
      }

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

      .nav-links a {
        justify-content: center;
        min-height: 48px;
      }

      .nav-links a.active::after {
        bottom: 7px;
      }

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

      .section {
        padding: 62px 0;
      }

      .page-top {
        padding-top: 36px;
      }

      .section-heading {
        display: block;
      }

      .cta-content {
        display: block;
      }

      .cta-actions {
        margin-top: 22px;
      }
    }

    @media (max-width: 640px) {
      .container {
        width: min(100% - 28px, var(--container));
      }

      .brand-mark {
        width: 38px;
        height: 38px;
        border-radius: 13px;
      }

      .brand-text strong {
        max-width: 190px;
        overflow: hidden;
        text-overflow: ellipsis;
      }

      .brand-text span {
        display: none;
      }

      .breadcrumb-current {
        max-width: 260px;
      }

      .article-head-card {
        padding: 24px 20px;
        border-radius: 22px;
      }

      .article-title {
        margin-top: 16px;
      }

      .article-summary {
        font-size: 15px;
      }

      .article-cover,
      .article-cover img {
        min-height: 240px;
      }

      .cover-caption {
        left: 14px;
        right: 14px;
        bottom: 14px;
        padding: 14px;
      }

      .reader-note {
        display: block;
        padding: 16px;
      }

      .reader-note strong {
        display: block;
        margin-bottom: 4px;
      }

      .article-body {
        padding: 22px 18px;
        font-size: 16px;
      }

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

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

      .guide-visual,
      .guide-visual img {
        min-height: 260px;
      }

      .step-card {
        grid-template-columns: 42px minmax(0, 1fr);
        padding: 16px;
      }

      .step-num {
        width: 42px;
        height: 42px;
      }

      .faq-question {
        padding: 16px;
      }

      .faq-answer {
        padding: 0 16px 18px 16px;
      }

      .cta-band {
        padding: 28px 20px;
        border-radius: 22px;
      }

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

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
      }

      .copyright {
        display: grid;
        gap: 8px;
      }
    }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}