/* roulang page: index */
:root {
      --berry-950: #190616;
      --berry-900: #2a0a22;
      --berry-800: #43102f;
      --berry-700: #64163f;
      --wine-600: #8e254b;
      --coral-500: #ff6b57;
      --coral-600: #eb503f;
      --amber-400: #ffbf5c;
      --rose-100: #fff0ea;
      --cream-50: #fff9f2;
      --cream-100: #f8eadf;
      --mist-200: #ead6d8;
      --text-900: #21151a;
      --text-700: #5d4750;
      --text-500: #8b737b;
      --white: #ffffff;
      --line: rgba(255, 255, 255, .16);
      --line-dark: rgba(99, 22, 63, .14);
      --shadow-soft: 0 18px 50px rgba(67, 16, 47, .14);
      --shadow-glow: 0 18px 60px rgba(255, 107, 87, .22);
      --radius-xl: 30px;
      --radius-lg: 24px;
      --radius-md: 18px;
      --radius-pill: 999px;
      --nav-h: 76px;
      --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: var(--font);
      color: var(--text-900);
      background: var(--cream-50);
      line-height: 1.75;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color .2s ease, transform .2s ease, opacity .2s ease;
    }

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

    button,
    input {
      font: inherit;
    }

    button:focus-visible,
    a:focus-visible,
    input:focus-visible {
      outline: 3px solid rgba(255, 191, 92, .75);
      outline-offset: 3px;
    }

    .site-wrap {
      position: relative;
      min-height: 100vh;
      background:
        radial-gradient(circle at 9% 9%, rgba(255, 107, 87, .22), transparent 28%),
        radial-gradient(circle at 90% 0%, rgba(255, 191, 92, .16), transparent 26%),
        linear-gradient(180deg, var(--berry-950) 0 720px, var(--cream-50) 720px 100%);
    }

    .container {
      max-width: 1220px;
    }

    .top-alert {
      position: relative;
      z-index: 1031;
      background: linear-gradient(90deg, var(--coral-500), var(--amber-400), #ffd9a2);
      color: #321018;
      font-size: 14px;
      font-weight: 700;
      letter-spacing: .02em;
      overflow: hidden;
    }

    .top-alert .container {
      min-height: 38px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
    }

    .top-alert span {
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .top-alert .pulse-dot {
      width: 9px;
      height: 9px;
      border-radius: 50%;
      background: var(--berry-800);
      box-shadow: 0 0 0 6px rgba(67, 16, 47, .16);
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1030;
      backdrop-filter: blur(18px);
      background: rgba(25, 6, 22, .88);
      border-bottom: 1px solid rgba(255, 255, 255, .12);
      box-shadow: 0 12px 36px rgba(0, 0, 0, .18);
    }

    .navbar {
      padding: 14px 0 10px;
    }

    .navbar-brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: var(--white);
      font-weight: 900;
      letter-spacing: -.02em;
      white-space: normal;
    }

    .logo-mark {
      width: 42px;
      height: 42px;
      flex: 0 0 auto;
      border-radius: 50%;
      background:
        repeating-linear-gradient(90deg, rgba(255, 255, 255, .92) 0 3px, transparent 3px 7px),
        radial-gradient(circle, var(--coral-500), var(--wine-600));
      box-shadow: inset 0 0 0 7px rgba(255, 255, 255, .12), 0 10px 26px rgba(255, 107, 87, .28);
    }

    .brand-text {
      display: grid;
      line-height: 1.15;
    }

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

    .brand-text small {
      color: rgba(255, 255, 255, .68);
      font-size: 12px;
      font-weight: 600;
    }

    .navbar-toggler {
      border: 1px solid rgba(255, 255, 255, .2);
      border-radius: 14px;
      padding: 9px 11px;
      color: var(--white);
      box-shadow: none;
    }

    .navbar-toggler-icon {
      filter: invert(1);
    }

    .nav-shell {
      display: flex;
      align-items: center;
      justify-content: flex-end;
      gap: 14px;
      width: 100%;
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 6px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .main-nav .nav-link {
      color: rgba(255, 255, 255, .78);
      border-radius: var(--radius-pill);
      padding: 9px 14px;
      font-size: 14px;
      font-weight: 800;
      position: relative;
    }

    .main-nav .nav-link:hover,
    .main-nav .nav-link.active {
      color: var(--white);
      background: rgba(255, 107, 87, .18);
    }

    .main-nav .nav-link.active::after {
      content: "";
      position: absolute;
      left: 18px;
      right: 18px;
      bottom: 4px;
      height: 3px;
      border-radius: 999px;
      background: var(--coral-500);
    }

    .nav-search {
      min-width: 280px;
      max-width: 350px;
      flex: 1 1 300px;
      position: relative;
    }

    .nav-search input,
    .hero-search input,
    .lead-form input {
      width: 100%;
      min-height: 48px;
      border: 1px solid rgba(255, 255, 255, .16);
      border-radius: var(--radius-pill);
      background: rgba(255, 255, 255, .1);
      color: var(--white);
      padding: 0 18px;
      transition: border-color .2s ease, background .2s ease, box-shadow .2s ease;
    }

    .nav-search input::placeholder,
    .hero-search input::placeholder {
      color: rgba(255, 255, 255, .62);
    }

    .nav-search input:focus,
    .hero-search input:focus {
      border-color: rgba(255, 191, 92, .7);
      background: rgba(255, 255, 255, .15);
      box-shadow: 0 0 0 4px rgba(255, 191, 92, .12);
    }

    .age-pill {
      display: inline-flex;
      align-items: center;
      min-height: 40px;
      padding: 0 14px;
      border-radius: var(--radius-pill);
      color: var(--amber-400);
      background: rgba(255, 191, 92, .1);
      border: 1px solid rgba(255, 191, 92, .24);
      font-size: 13px;
      font-weight: 900;
      white-space: nowrap;
    }

    .trend-row {
      padding: 0 0 14px;
      overflow-x: auto;
      scrollbar-width: none;
    }

    .trend-row::-webkit-scrollbar {
      display: none;
    }

    .trend-pills {
      display: flex;
      gap: 10px;
      min-width: max-content;
    }

    .trend-pills a {
      display: inline-flex;
      align-items: center;
      min-height: 34px;
      padding: 0 13px;
      border-radius: var(--radius-pill);
      color: rgba(255, 255, 255, .78);
      background: rgba(255, 255, 255, .08);
      border: 1px solid rgba(255, 255, 255, .12);
      font-size: 13px;
      font-weight: 700;
    }

    .trend-pills a:hover {
      color: var(--white);
      transform: translateY(-1px);
      border-color: rgba(255, 107, 87, .45);
      background: rgba(255, 107, 87, .14);
    }

    .hero {
      position: relative;
      padding: 74px 0 72px;
      color: var(--white);
      overflow: hidden;
    }

    .hero::before {
      content: "";
      position: absolute;
      inset: 36px auto auto 50%;
      width: 520px;
      height: 520px;
      transform: translateX(-50%);
      border-radius: 50%;
      background:
        repeating-radial-gradient(circle, rgba(255,255,255,.14) 0 2px, transparent 2px 20px),
        radial-gradient(circle, rgba(255,107,87,.16), transparent 62%);
      opacity: .65;
      pointer-events: none;
    }

    .hero-bento {
      position: relative;
      display: grid;
      grid-template-columns: minmax(0, 1.05fr) minmax(320px, .95fr);
      gap: 24px;
      align-items: stretch;
    }

    .hero-panel {
      min-height: 540px;
      padding: 46px;
      border-radius: 36px;
      background:
        linear-gradient(135deg, rgba(255, 255, 255, .12), rgba(255, 255, 255, .04)),
        linear-gradient(145deg, rgba(100, 22, 63, .88), rgba(42, 10, 34, .92));
      border: 1px solid rgba(255, 255, 255, .16);
      box-shadow: var(--shadow-glow);
      position: relative;
      overflow: hidden;
    }

    .hero-panel::after {
      content: "";
      position: absolute;
      right: -80px;
      bottom: -70px;
      width: 280px;
      height: 160px;
      background: repeating-linear-gradient(90deg, rgba(255, 191, 92, .35) 0 5px, transparent 5px 13px);
      transform: rotate(-12deg);
      opacity: .5;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      min-height: 34px;
      padding: 0 13px;
      border-radius: var(--radius-pill);
      color: #ffe2c1;
      background: rgba(255, 191, 92, .13);
      border: 1px solid rgba(255, 191, 92, .22);
      font-size: 13px;
      font-weight: 900;
      letter-spacing: .04em;
    }

    .hero h1 {
      margin: 22px 0 18px;
      max-width: 800px;
      font-size: clamp(32px, 5vw, 56px);
      line-height: 1.08;
      font-weight: 950;
      letter-spacing: -.055em;
    }

    .hero .lead {
      max-width: 760px;
      color: rgba(255, 255, 255, .8);
      font-size: 18px;
      margin: 0 0 26px;
    }

    .hero-search {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 12px;
      max-width: 720px;
      margin: 28px 0 18px;
    }

    .btn-brand,
    .btn-outline-brand,
    .btn-dark-soft {
      min-height: 48px;
      border-radius: var(--radius-pill);
      padding: 0 20px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border: 0;
      font-weight: 900;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease, color .2s ease;
      white-space: nowrap;
    }

    .btn-brand {
      color: #341017;
      background: linear-gradient(135deg, var(--amber-400), var(--coral-500));
      box-shadow: 0 14px 34px rgba(255, 107, 87, .26);
    }

    .btn-brand:hover,
    .btn-brand:active {
      color: #2a0a22;
      transform: translateY(-2px);
      background: linear-gradient(135deg, #ffd278, var(--coral-600));
      box-shadow: 0 18px 42px rgba(255, 107, 87, .34);
    }

    .btn-outline-brand {
      color: var(--white);
      background: rgba(255,255,255,.06);
      border: 1px solid rgba(255,255,255,.22);
    }

    .btn-outline-brand:hover {
      color: var(--berry-900);
      background: var(--cream-50);
      transform: translateY(-2px);
    }

    .btn-dark-soft {
      color: var(--white);
      background: var(--berry-800);
    }

    .btn-dark-soft:hover {
      color: var(--white);
      background: var(--wine-600);
      transform: translateY(-2px);
      box-shadow: var(--shadow-soft);
    }

    .hero-points {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 18px;
    }

    .hero-points span,
    .tag {
      display: inline-flex;
      align-items: center;
      min-height: 32px;
      padding: 0 12px;
      border-radius: var(--radius-pill);
      font-size: 13px;
      font-weight: 800;
    }

    .hero-points span {
      color: rgba(255,255,255,.84);
      background: rgba(255,255,255,.08);
      border: 1px solid rgba(255,255,255,.14);
    }

    .demo-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 14px;
    }

    .demo-card {
      min-height: 160px;
      border-radius: 28px;
      padding: 22px;
      color: var(--white);
      position: relative;
      overflow: hidden;
      border: 1px solid rgba(255,255,255,.16);
      box-shadow: 0 16px 42px rgba(0,0,0,.16);
    }

    .demo-card.large {
      grid-column: span 2;
      min-height: 210px;
      background:
        linear-gradient(135deg, rgba(255, 107, 87, .88), rgba(142, 37, 75, .92)),
        repeating-linear-gradient(90deg, rgba(255,255,255,.18) 0 5px, transparent 5px 12px);
    }

    .demo-card:nth-child(2) {
      background: linear-gradient(135deg, #5d173d, #2a0a22);
    }

    .demo-card:nth-child(3) {
      background: linear-gradient(135deg, #ffbf5c, #b8464b);
      color: #2c1016;
    }

    .demo-card:nth-child(4) {
      background: linear-gradient(135deg, #341128, #6d1a44);
    }

    .demo-card:nth-child(5) {
      background: linear-gradient(135deg, #fff0ea, #ffbf5c);
      color: #321018;
    }

    .demo-card::after {
      content: "";
      position: absolute;
      right: -36px;
      bottom: -28px;
      width: 120px;
      height: 120px;
      border-radius: 50%;
      border: 18px solid rgba(255,255,255,.14);
    }

    .demo-card .tag {
      background: rgba(255,255,255,.16);
      border: 1px solid rgba(255,255,255,.18);
      margin-bottom: 14px;
    }

    .demo-card h3 {
      font-size: 20px;
      font-weight: 950;
      margin: 0 0 8px;
    }

    .demo-card p {
      margin: 0;
      font-size: 14px;
      opacity: .82;
      line-height: 1.65;
    }

    .section {
      padding: 82px 0;
      position: relative;
    }

    .section-light {
      background: var(--cream-50);
    }

    .section-rose {
      background:
        radial-gradient(circle at 85% 12%, rgba(255,107,87,.14), transparent 24%),
        linear-gradient(180deg, var(--rose-100), var(--cream-50));
    }

    .section-dark {
      color: var(--white);
      background:
        radial-gradient(circle at 18% 0%, rgba(255,107,87,.26), transparent 32%),
        linear-gradient(145deg, var(--berry-950), var(--berry-800));
    }

    .section-head {
      max-width: 760px;
      margin-bottom: 34px;
    }

    .section-head.center {
      margin-left: auto;
      margin-right: auto;
      text-align: center;
    }

    .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--wine-600);
      background: rgba(142, 37, 75, .08);
      border: 1px solid rgba(142, 37, 75, .12);
      border-radius: var(--radius-pill);
      padding: 6px 13px;
      font-size: 13px;
      font-weight: 900;
      margin-bottom: 12px;
    }

    .section-dark .section-kicker {
      color: var(--amber-400);
      background: rgba(255, 191, 92, .1);
      border-color: rgba(255, 191, 92, .2);
    }

    .section-title {
      font-size: clamp(28px, 3.4vw, 38px);
      line-height: 1.16;
      font-weight: 950;
      letter-spacing: -.04em;
      margin: 0 0 12px;
    }

    .section-desc {
      color: var(--text-700);
      font-size: 17px;
      margin: 0;
    }

    .section-dark .section-desc {
      color: rgba(255,255,255,.72);
    }

    .principle-wrap {
      display: grid;
      grid-template-columns: .9fr 1.1fr;
      gap: 28px;
      align-items: stretch;
    }

    .story-tile {
      border-radius: var(--radius-xl);
      padding: 32px;
      background: linear-gradient(145deg, var(--berry-800), var(--wine-600));
      color: var(--white);
      min-height: 360px;
      position: relative;
      overflow: hidden;
      box-shadow: var(--shadow-soft);
    }

    .story-tile::before {
      content: "";
      position: absolute;
      inset: auto 30px 28px 30px;
      height: 68px;
      background: repeating-linear-gradient(90deg, rgba(255,255,255,.34) 0 4px, transparent 4px 14px);
      border-radius: 18px;
      opacity: .45;
    }

    .story-tile h2 {
      font-size: 32px;
      font-weight: 950;
      letter-spacing: -.04em;
      margin-bottom: 14px;
    }

    .story-tile p {
      color: rgba(255,255,255,.78);
      margin: 0;
    }

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

    .step-item {
      display: grid;
      grid-template-columns: auto 1fr;
      gap: 16px;
      align-items: start;
      padding: 20px;
      border-radius: var(--radius-lg);
      background: var(--white);
      border: 1px solid var(--line-dark);
      box-shadow: 0 12px 30px rgba(67, 16, 47, .07);
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }

    .step-item:hover {
      transform: translateY(-3px);
      border-color: rgba(255, 107, 87, .36);
      box-shadow: var(--shadow-soft);
    }

    .step-no {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: var(--white);
      background: var(--berry-800);
      font-weight: 950;
      box-shadow: inset 0 0 0 7px rgba(255,255,255,.1);
    }

    .step-item h3 {
      font-size: 19px;
      font-weight: 950;
      margin: 0 0 5px;
    }

    .step-item p {
      color: var(--text-700);
      margin: 0;
      font-size: 15px;
      line-height: 1.65;
    }

    .stats-strip {
      margin-top: 10px;
      border-radius: 34px;
      padding: 20px;
      background: rgba(255,255,255,.08);
      border: 1px solid rgba(255,255,255,.14);
      box-shadow: 0 20px 70px rgba(0,0,0,.24);
    }

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

    .stat-item {
      padding: 24px;
      border-radius: 24px;
      background: rgba(255,255,255,.08);
      border: 1px solid rgba(255,255,255,.12);
      min-height: 150px;
    }

    .stat-item strong {
      display: block;
      color: var(--amber-400);
      font-size: 34px;
      line-height: 1;
      font-weight: 950;
      margin-bottom: 10px;
    }

    .stat-item span {
      display: block;
      color: rgba(255,255,255,.78);
      font-size: 14px;
      line-height: 1.65;
    }

    .lead-card {
      display: grid;
      grid-template-columns: 1fr .82fr;
      gap: 22px;
      border-radius: 36px;
      padding: 28px;
      background:
        linear-gradient(135deg, rgba(255, 255, 255, .92), rgba(255, 240, 234, .9)),
        radial-gradient(circle at 90% 12%, rgba(255, 107, 87, .18), transparent 26%);
      border: 1px solid rgba(142, 37, 75, .12);
      box-shadow: var(--shadow-soft);
    }

    .lead-panel {
      padding: 28px;
      border-radius: 28px;
      background: var(--berry-900);
      color: var(--white);
      position: relative;
      overflow: hidden;
    }

    .lead-panel::after {
      content: "";
      position: absolute;
      top: 24px;
      right: -50px;
      width: 190px;
      height: 190px;
      border-radius: 50%;
      border: 28px solid rgba(255,191,92,.16);
    }

    .lead-form {
      display: grid;
      gap: 12px;
      margin-top: 20px;
      position: relative;
      z-index: 1;
    }

    .lead-form input {
      background: rgba(255,255,255,.1);
    }

    .lead-note {
      color: rgba(255,255,255,.62);
      font-size: 13px;
      margin: 0;
    }

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

    .check-list li {
      display: flex;
      gap: 12px;
      align-items: flex-start;
      padding: 16px;
      border-radius: 20px;
      background: rgba(255,255,255,.68);
      border: 1px solid rgba(142, 37, 75, .12);
      color: var(--text-700);
      font-weight: 700;
    }

    .check-list li::before {
      content: "✓";
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 24px;
      height: 24px;
      flex: 0 0 auto;
      border-radius: 50%;
      color: #2a0a22;
      background: var(--amber-400);
      font-weight: 950;
    }

    .content-layout {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 340px;
      gap: 24px;
      align-items: start;
    }

    .feature-card {
      border: 0;
      border-radius: 30px;
      overflow: hidden;
      background: var(--white);
      box-shadow: var(--shadow-soft);
      transition: transform .2s ease, box-shadow .2s ease;
    }

    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 24px 64px rgba(67, 16, 47, .17);
    }

    .abstract-cover {
      min-height: 210px;
      background:
        radial-gradient(circle at 20% 20%, rgba(255, 191, 92, .7), transparent 24%),
        repeating-linear-gradient(90deg, rgba(255,255,255,.16) 0 5px, transparent 5px 13px),
        linear-gradient(135deg, var(--wine-600), var(--berry-900));
      position: relative;
    }

    .abstract-cover::after {
      content: "";
      position: absolute;
      right: 30px;
      bottom: 24px;
      width: 112px;
      height: 112px;
      border-radius: 50%;
      border: 18px solid rgba(255,255,255,.2);
    }

    .card-body {
      padding: 26px;
    }

    .tag {
      color: var(--wine-600);
      background: rgba(142, 37, 75, .08);
      border: 1px solid rgba(142, 37, 75, .12);
      margin-right: 6px;
      margin-bottom: 8px;
    }

    .feature-card h3,
    .article-item h3 {
      margin: 8px 0 9px;
      font-size: 22px;
      line-height: 1.3;
      font-weight: 950;
      letter-spacing: -.02em;
    }

    .feature-card p,
    .article-item p {
      color: var(--text-700);
      margin: 0 0 16px;
      font-size: 15px;
    }

    .meta-line {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      color: var(--text-500);
      font-size: 13px;
      font-weight: 800;
    }

    .article-list {
      display: grid;
      gap: 14px;
      margin-top: 18px;
    }

    .article-item {
      display: grid;
      grid-template-columns: 92px 1fr;
      gap: 16px;
      padding: 18px;
      border-radius: 24px;
      background: var(--white);
      border: 1px solid var(--line-dark);
      transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
    }

    .article-item:hover {
      transform: translateY(-3px);
      border-color: rgba(255,107,87,.34);
      box-shadow: var(--shadow-soft);
    }

    .thumb {
      width: 92px;
      aspect-ratio: 1;
      border-radius: 22px;
      background:
        repeating-linear-gradient(90deg, rgba(255,255,255,.36) 0 4px, transparent 4px 10px),
        linear-gradient(135deg, var(--coral-500), var(--berry-800));
    }

    .article-item h3 {
      font-size: 18px;
      margin-top: 0;
    }

    .side-panel {
      position: sticky;
      top: 132px;
      display: grid;
      gap: 14px;
    }

    .side-card {
      padding: 22px;
      border-radius: 28px;
      background: var(--berry-900);
      color: var(--white);
      border: 1px solid rgba(255,255,255,.14);
      box-shadow: 0 18px 48px rgba(42, 10, 34, .2);
    }

    .side-card.light {
      color: var(--text-900);
      background: var(--white);
      border: 1px solid var(--line-dark);
    }

    .side-card h3 {
      font-size: 20px;
      font-weight: 950;
      margin-bottom: 14px;
    }

    .hot-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 9px;
    }

    .hot-tags a {
      display: inline-flex;
      align-items: center;
      min-height: 32px;
      padding: 0 11px;
      border-radius: var(--radius-pill);
      background: rgba(255,255,255,.1);
      color: rgba(255,255,255,.82);
      border: 1px solid rgba(255,255,255,.12);
      font-size: 13px;
      font-weight: 800;
    }

    .side-card.light .hot-tags a {
      background: rgba(142,37,75,.08);
      color: var(--wine-600);
      border-color: rgba(142,37,75,.12);
    }

    .hot-tags a:hover {
      transform: translateY(-2px);
      background: var(--coral-500);
      color: var(--white);
    }

    .privacy-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 16px;
    }

    .privacy-card {
      padding: 24px;
      border-radius: 28px;
      background: rgba(255,255,255,.08);
      border: 1px solid rgba(255,255,255,.14);
      min-height: 210px;
    }

    .privacy-icon {
      width: 48px;
      height: 48px;
      border-radius: 16px;
      background: rgba(255,191,92,.16);
      color: var(--amber-400);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 950;
      margin-bottom: 16px;
    }

    .privacy-card h3 {
      font-size: 20px;
      font-weight: 950;
      margin-bottom: 10px;
    }

    .privacy-card p {
      color: rgba(255,255,255,.72);
      margin: 0;
      font-size: 15px;
    }

    .accordion {
      display: grid;
      gap: 12px;
    }

    .accordion-item {
      border: 1px solid rgba(142,37,75,.12);
      border-radius: 24px !important;
      overflow: hidden;
      background: var(--white);
      box-shadow: 0 10px 26px rgba(67,16,47,.06);
    }

    .accordion-button {
      min-height: 68px;
      padding: 18px 22px;
      color: var(--text-900);
      background: var(--white);
      font-weight: 950;
      box-shadow: none !important;
    }

    .accordion-button:not(.collapsed) {
      color: var(--berry-900);
      background: var(--rose-100);
    }

    .accordion-button::after {
      width: 28px;
      height: 28px;
      border-radius: 50%;
      background-color: rgba(142,37,75,.1);
      background-position: center;
      background-size: 14px;
    }

    .accordion-body {
      color: var(--text-700);
      padding: 0 22px 22px;
      font-size: 15px;
    }

    .cta-banner {
      border-radius: 38px;
      padding: 36px;
      color: var(--white);
      background:
        radial-gradient(circle at 85% 12%, rgba(255,191,92,.32), transparent 26%),
        repeating-linear-gradient(90deg, rgba(255,255,255,.08) 0 4px, transparent 4px 14px),
        linear-gradient(135deg, var(--coral-500), var(--berry-800));
      box-shadow: var(--shadow-glow);
      overflow: hidden;
      position: relative;
    }

    .cta-banner h2 {
      font-size: clamp(28px, 3.4vw, 40px);
      line-height: 1.18;
      font-weight: 950;
      letter-spacing: -.04em;
      margin-bottom: 12px;
    }

    .cta-banner p {
      color: rgba(255,255,255,.8);
      margin-bottom: 22px;
      max-width: 760px;
    }

    .site-footer {
      color: rgba(255,255,255,.74);
      background: #140411;
      border-top: 1px solid rgba(255,255,255,.1);
      padding: 50px 0 28px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.2fr .8fr .8fr;
      gap: 28px;
      margin-bottom: 32px;
    }

    .footer-brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: var(--white);
      font-weight: 950;
      margin-bottom: 14px;
    }

    .footer-title {
      color: var(--white);
      font-size: 15px;
      font-weight: 950;
      margin-bottom: 12px;
    }

    .footer-links {
      display: grid;
      gap: 9px;
    }

    .footer-links a {
      color: rgba(255,255,255,.68);
      font-size: 14px;
    }

    .footer-links a:hover {
      color: var(--amber-400);
      transform: translateX(3px);
    }

    .copyright {
      padding-top: 22px;
      border-top: 1px solid rgba(255,255,255,.1);
      display: flex;
      justify-content: space-between;
      gap: 18px;
      flex-wrap: wrap;
      font-size: 13px;
      color: rgba(255,255,255,.54);
    }

    .offcanvas {
      background: var(--berry-950);
      color: var(--white);
    }

    .offcanvas .btn-close {
      filter: invert(1);
    }

    @media (max-width: 1199px) {
      .nav-shell {
        gap: 10px;
      }

      .nav-search {
        min-width: 220px;
      }

      .hero-panel {
        padding: 34px;
      }
    }

    @media (max-width: 991px) {
      .nav-shell {
        display: grid;
        justify-content: stretch;
        padding: 16px 0 6px;
      }

      .main-nav {
        flex-wrap: wrap;
      }

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

      .hero {
        padding-top: 48px;
      }

      .hero-bento,
      .principle-wrap,
      .lead-card,
      .content-layout {
        grid-template-columns: 1fr;
      }

      .hero-panel {
        min-height: auto;
      }

      .side-panel {
        position: static;
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

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

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

    @media (max-width: 767px) {
      .top-alert .container {
        min-height: 34px;
        font-size: 12px;
      }

      .top-alert .container > span:last-child {
        display: none;
      }

      .navbar {
        padding: 10px 0;
      }

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

      .brand-text small {
        display: none;
      }

      .trend-row {
        padding-bottom: 10px;
      }

      .hero {
        padding: 34px 0 48px;
      }

      .hero-panel {
        padding: 26px;
        border-radius: 28px;
      }

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

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

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

      .demo-card.large {
        grid-column: span 1;
      }

      .section {
        padding: 58px 0;
      }

      .story-tile,
      .lead-card,
      .cta-banner {
        border-radius: 28px;
        padding: 24px;
      }

      .stat-grid,
      .privacy-grid,
      .side-panel,
      .footer-grid {
        grid-template-columns: 1fr;
      }

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

      .thumb {
        width: 100%;
        aspect-ratio: 16 / 7;
      }

      .copyright {
        display: grid;
      }
    }

    @media (max-width: 520px) {
      .container {
        padding-left: 18px;
        padding-right: 18px;
      }

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

      .main-nav .nav-link {
        padding: 8px 12px;
      }

      .section-title {
        font-size: 27px;
      }

      .lead-panel {
        padding: 22px;
      }

      .card-body {
        padding: 22px;
      }
    }

/* roulang page: category1 */
:root {
      --color-plum: #2b071c;
      --color-plum-2: #44112f;
      --color-wine: #6f1d3f;
      --color-coral: #ff7a5c;
      --color-coral-dark: #ef6548;
      --color-amber: #ffb84d;
      --color-rose: #f5d6d1;
      --color-cream: #fff4e8;
      --color-mist: #f7ebe7;
      --color-ink: #261923;
      --color-muted: #7a6570;
      --color-line: rgba(111, 29, 63, .16);
      --white: #ffffff;
      --radius-xl: 30px;
      --radius-lg: 24px;
      --radius-md: 18px;
      --radius-pill: 999px;
      --shadow-soft: 0 18px 50px rgba(69, 13, 43, .14);
      --shadow-deep: 0 26px 70px rgba(16, 2, 12, .38);
      --container: 1200px;
      --transition: all .25s ease;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
      color: var(--color-ink);
      background: linear-gradient(180deg, #2b071c 0, #fff4e8 520px, #fffaf4 100%);
      line-height: 1.75;
      overflow-x: hidden;
    }

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

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

    button,
    input {
      font: inherit;
    }

    button:focus-visible,
    a:focus-visible,
    input:focus-visible {
      outline: 3px solid rgba(255, 184, 77, .78);
      outline-offset: 3px;
    }

    .container {
      max-width: var(--container);
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(43, 7, 28, .94);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(255, 244, 232, .12);
      box-shadow: 0 10px 30px rgba(24, 3, 17, .22);
    }

    .navbar {
      padding: 14px 0 10px;
    }

    .navbar-brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: 255px;
      color: var(--white);
    }

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

    .logo-mark {
      width: 46px;
      height: 46px;
      flex: 0 0 46px;
      border-radius: 50%;
      background:
        radial-gradient(circle at 50% 50%, var(--color-amber) 0 5px, transparent 6px),
        repeating-conic-gradient(from 8deg, var(--color-coral) 0 10deg, #7e244a 10deg 20deg, var(--color-cream) 20deg 26deg, #3b0b27 26deg 35deg);
      box-shadow: 0 0 0 7px rgba(255, 122, 92, .13), inset 0 0 0 6px rgba(43, 7, 28, .28);
    }

    .brand-text {
      display: grid;
      gap: 1px;
      line-height: 1.2;
    }

    .brand-text strong {
      font-size: 17px;
      letter-spacing: .02em;
    }

    .brand-text small {
      font-size: 12px;
      color: rgba(255, 244, 232, .74);
    }

    .navbar-toggler {
      border: 1px solid rgba(255, 244, 232, .32);
      border-radius: 14px;
      padding: 8px 10px;
      background: rgba(255, 244, 232, .1);
    }

    .navbar-toggler-icon {
      filter: invert(1) brightness(1.8);
    }

    .nav-shell {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: flex-end;
      gap: 14px;
    }

    .main-nav {
      gap: 6px;
      align-items: center;
    }

    .main-nav .nav-link {
      color: rgba(255, 244, 232, .8);
      font-weight: 700;
      padding: 10px 16px;
      border-radius: var(--radius-pill);
      position: relative;
    }

    .main-nav .nav-link:hover {
      color: var(--white);
      background: rgba(255, 244, 232, .11);
    }

    .main-nav .nav-link.active {
      color: #32101f;
      background: var(--color-coral);
      box-shadow: 0 10px 22px rgba(255, 122, 92, .24);
    }

    .nav-search {
      width: min(350px, 34vw);
      position: relative;
    }

    .nav-search input {
      width: 100%;
      min-height: 44px;
      border: 1px solid rgba(255, 244, 232, .18);
      border-radius: var(--radius-pill);
      background: rgba(255, 244, 232, .1);
      color: var(--white);
      padding: 10px 18px;
      transition: var(--transition);
    }

    .nav-search input::placeholder {
      color: rgba(255, 244, 232, .62);
    }

    .nav-search input:focus {
      border-color: rgba(255, 184, 77, .8);
      background: rgba(255, 244, 232, .16);
      box-shadow: 0 0 0 4px rgba(255, 184, 77, .1);
    }

    .age-pill {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 44px;
      padding: 10px 16px;
      border-radius: var(--radius-pill);
      color: var(--color-cream);
      border: 1px solid rgba(255, 184, 77, .5);
      background: rgba(255, 184, 77, .11);
      font-size: 14px;
      font-weight: 800;
      white-space: nowrap;
    }

    .age-pill:hover {
      color: var(--color-plum);
      background: var(--color-amber);
      transform: translateY(-1px);
    }

    .trend-row {
      border-top: 1px solid rgba(255, 244, 232, .1);
      padding: 8px 0 10px;
    }

    .trend-pills {
      display: flex;
      gap: 10px;
      overflow-x: auto;
      scrollbar-width: none;
      padding-bottom: 1px;
    }

    .trend-pills::-webkit-scrollbar {
      display: none;
    }

    .trend-pills a {
      flex: 0 0 auto;
      padding: 7px 13px;
      border-radius: var(--radius-pill);
      color: rgba(255, 244, 232, .76);
      background: rgba(255, 244, 232, .08);
      border: 1px solid rgba(255, 244, 232, .1);
      font-size: 13px;
      font-weight: 700;
    }

    .trend-pills a:hover {
      color: var(--color-plum);
      background: var(--color-cream);
    }

    .limit-strip {
      margin-top: 34px;
      display: inline-flex;
      align-items: center;
      gap: 12px;
      color: var(--color-cream);
      background: linear-gradient(90deg, rgba(255, 122, 92, .28), rgba(255, 184, 77, .15));
      border: 1px solid rgba(255, 244, 232, .2);
      border-radius: var(--radius-pill);
      padding: 9px 16px;
      font-weight: 800;
      box-shadow: var(--shadow-deep);
    }

    .limit-strip .dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: var(--color-amber);
      box-shadow: 0 0 0 7px rgba(255, 184, 77, .14);
    }

    .hero {
      position: relative;
      padding: 0 0 76px;
      color: var(--white);
      overflow: hidden;
    }

    .hero::before,
    .hero::after {
      content: "";
      position: absolute;
      pointer-events: none;
      border-radius: 50%;
      opacity: .55;
    }

    .hero::before {
      width: 480px;
      height: 480px;
      right: -180px;
      top: 40px;
      background: radial-gradient(circle, rgba(255, 122, 92, .4), transparent 68%);
    }

    .hero::after {
      width: 680px;
      height: 190px;
      left: -120px;
      bottom: 15px;
      background: repeating-linear-gradient(90deg, transparent 0 14px, rgba(255, 244, 232, .13) 14px 17px);
      transform: rotate(-6deg);
      border-radius: 40px;
    }

    .hero-inner {
      position: relative;
      z-index: 2;
      padding-top: 32px;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--color-amber);
      font-size: 14px;
      font-weight: 900;
      letter-spacing: .06em;
      margin-bottom: 18px;
    }

    .eyebrow::before {
      content: "";
      width: 34px;
      height: 2px;
      border-radius: 999px;
      background: var(--color-coral);
    }

    h1 {
      font-size: clamp(32px, 5vw, 54px);
      line-height: 1.12;
      letter-spacing: -.04em;
      font-weight: 950;
      margin: 0 0 20px;
      max-width: 820px;
    }

    .hero-lead {
      color: rgba(255, 244, 232, .84);
      font-size: 18px;
      max-width: 760px;
      margin: 0 0 24px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin: 26px 0 18px;
    }

    .btn-brand,
    .btn-ghost {
      min-height: 48px;
      border-radius: var(--radius-pill);
      padding: 12px 22px;
      font-weight: 900;
      border: 1px solid transparent;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      transition: var(--transition);
    }

    .btn-brand {
      background: var(--color-coral);
      color: #2c0c1e;
      box-shadow: 0 14px 32px rgba(255, 122, 92, .28);
    }

    .btn-brand:hover {
      background: var(--color-coral-dark);
      color: #260719;
      transform: translateY(-2px);
      box-shadow: 0 18px 42px rgba(255, 122, 92, .34);
    }

    .btn-ghost {
      color: var(--color-cream);
      border-color: rgba(255, 244, 232, .3);
      background: rgba(255, 244, 232, .08);
    }

    .btn-ghost:hover {
      color: var(--color-plum);
      background: var(--color-cream);
      transform: translateY(-2px);
    }

    .group-note {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      color: rgba(255, 244, 232, .78);
      font-size: 14px;
    }

    .group-note span {
      padding: 7px 12px;
      border-radius: var(--radius-pill);
      background: rgba(255, 244, 232, .08);
      border: 1px solid rgba(255, 244, 232, .12);
    }

    .filter-panel {
      background: linear-gradient(145deg, rgba(255, 244, 232, .15), rgba(255, 122, 92, .08));
      border: 1px solid rgba(255, 244, 232, .2);
      border-radius: var(--radius-xl);
      box-shadow: var(--shadow-deep);
      padding: 24px;
      position: relative;
      overflow: hidden;
    }

    .filter-panel::before {
      content: "";
      position: absolute;
      inset: 18px 18px auto auto;
      width: 118px;
      height: 118px;
      border-radius: 50%;
      background: repeating-conic-gradient(from 0deg, rgba(255, 184, 77, .65) 0 10deg, rgba(255, 244, 232, .08) 10deg 22deg);
      opacity: .7;
    }

    .panel-title {
      position: relative;
      font-size: 22px;
      font-weight: 950;
      margin-bottom: 18px;
    }

    .chosen-line {
      position: relative;
      padding: 14px 16px;
      border-radius: 18px;
      background: rgba(43, 7, 28, .34);
      border: 1px solid rgba(255, 244, 232, .14);
      color: rgba(255, 244, 232, .9);
      margin-bottom: 18px;
    }

    .filter-group {
      position: relative;
      margin-bottom: 17px;
    }

    .filter-label {
      display: block;
      font-size: 13px;
      color: rgba(255, 244, 232, .68);
      margin-bottom: 9px;
      font-weight: 800;
    }

    .pill-list {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .filter-pill {
      border: 1px solid rgba(255, 244, 232, .18);
      border-radius: var(--radius-pill);
      color: var(--color-cream);
      background: rgba(255, 244, 232, .08);
      padding: 8px 12px;
      font-size: 13px;
      font-weight: 800;
      transition: var(--transition);
    }

    .filter-pill.active,
    .filter-pill:hover {
      color: var(--color-plum);
      background: var(--color-amber);
      border-color: var(--color-amber);
      transform: translateY(-1px);
    }

    .mobile-filter {
      display: none;
      margin-top: 20px;
    }

    main {
      background: #fffaf4;
    }

    .section {
      padding: 78px 0;
      position: relative;
    }

    .section-soft {
      background: var(--color-cream);
    }

    .section-rose {
      background: linear-gradient(180deg, #fffaf4, var(--color-mist));
    }

    .section-dark {
      background:
        radial-gradient(circle at 12% 20%, rgba(255, 122, 92, .22), transparent 30%),
        linear-gradient(135deg, var(--color-plum), #18020f);
      color: var(--white);
    }

    .section-head {
      margin-bottom: 32px;
      max-width: 790px;
    }

    .section-head h2 {
      font-size: clamp(27px, 3.4vw, 38px);
      line-height: 1.22;
      font-weight: 950;
      letter-spacing: -.03em;
      margin-bottom: 12px;
    }

    .section-head p {
      color: var(--color-muted);
      font-size: 17px;
      margin: 0;
    }

    .section-dark .section-head p {
      color: rgba(255, 244, 232, .78);
    }

    .principle-wrap {
      display: grid;
      grid-template-columns: .88fr 1.12fr;
      gap: 28px;
      align-items: stretch;
    }

    .principle-card,
    .note-card,
    .topic-card,
    .trend-card,
    .faq-wrap,
    .lead-card {
      border-radius: var(--radius-xl);
      box-shadow: var(--shadow-soft);
      border: 1px solid var(--color-line);
      background: rgba(255, 255, 255, .82);
    }

    .principle-card {
      padding: 30px;
      background:
        linear-gradient(145deg, rgba(111, 29, 63, .96), rgba(43, 7, 28, .96)),
        repeating-linear-gradient(90deg, transparent 0 16px, rgba(255,255,255,.1) 16px 18px);
      color: var(--white);
      overflow: hidden;
      position: relative;
    }

    .principle-card::after {
      content: "";
      position: absolute;
      right: -54px;
      bottom: -54px;
      width: 220px;
      height: 220px;
      border-radius: 50%;
      background: repeating-conic-gradient(var(--color-coral) 0 10deg, rgba(255,244,232,.12) 10deg 22deg);
      opacity: .55;
    }

    .principle-card h2 {
      font-size: 31px;
      line-height: 1.22;
      font-weight: 950;
      margin-bottom: 15px;
      position: relative;
      z-index: 1;
    }

    .principle-card p {
      color: rgba(255, 244, 232, .82);
      margin-bottom: 24px;
      position: relative;
      z-index: 1;
    }

    .mini-stat {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 12px;
      position: relative;
      z-index: 1;
    }

    .mini-stat div {
      padding: 15px;
      border-radius: 18px;
      background: rgba(255, 244, 232, .1);
      border: 1px solid rgba(255, 244, 232, .14);
    }

    .mini-stat strong {
      display: block;
      font-size: 24px;
      color: var(--color-amber);
      line-height: 1;
      margin-bottom: 7px;
    }

    .mini-stat span {
      color: rgba(255, 244, 232, .78);
      font-size: 13px;
    }

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

    .principle-item {
      display: grid;
      grid-template-columns: 52px 1fr;
      gap: 14px;
      align-items: start;
      padding: 18px;
      border-radius: 22px;
      background: var(--white);
      border: 1px solid var(--color-line);
      box-shadow: 0 12px 28px rgba(111, 29, 63, .08);
      transition: var(--transition);
    }

    .principle-item:hover {
      transform: translateX(4px);
      border-color: rgba(255, 122, 92, .48);
    }

    .chapter {
      width: 52px;
      height: 52px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      color: var(--color-plum);
      background: radial-gradient(circle, var(--color-amber), var(--color-coral));
      font-weight: 950;
      box-shadow: 0 8px 18px rgba(255, 122, 92, .22);
    }

    .principle-item h3 {
      font-size: 18px;
      font-weight: 950;
      margin: 0 0 4px;
    }

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

    .content-layout {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 330px;
      gap: 24px;
      align-items: start;
    }

    .topic-list {
      display: grid;
      gap: 16px;
    }

    .topic-card {
      display: grid;
      grid-template-columns: 172px 1fr;
      gap: 18px;
      padding: 16px;
      transition: var(--transition);
      overflow: hidden;
    }

    .topic-card:hover {
      transform: translateY(-4px);
      border-color: rgba(255, 122, 92, .55);
      box-shadow: 0 22px 54px rgba(111, 29, 63, .16);
    }

    .abstract-cover {
      min-height: 138px;
      border-radius: 22px;
      background:
        radial-gradient(circle at 28% 30%, rgba(255, 184, 77, .9), transparent 22%),
        radial-gradient(circle at 76% 70%, rgba(255, 122, 92, .7), transparent 24%),
        repeating-linear-gradient(90deg, rgba(255,255,255,.28) 0 8px, transparent 8px 16px),
        linear-gradient(135deg, #6f1d3f, #2b071c);
      position: relative;
      overflow: hidden;
    }

    .abstract-cover::after {
      content: "";
      position: absolute;
      inset: auto 16px 18px 16px;
      height: 34px;
      border-radius: 18px;
      background: repeating-linear-gradient(90deg, rgba(255,244,232,.72) 0 4px, transparent 4px 12px);
      opacity: .72;
    }

    .topic-body {
      min-width: 0;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }

    .tag-row {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 9px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      border-radius: var(--radius-pill);
      padding: 5px 10px;
      font-size: 12px;
      font-weight: 900;
      color: var(--color-wine);
      background: rgba(255, 122, 92, .13);
      border: 1px solid rgba(255, 122, 92, .18);
    }

    .tag.amber {
      color: #6b4100;
      background: rgba(255, 184, 77, .25);
      border-color: rgba(255, 184, 77, .35);
    }

    .topic-card h3 {
      font-size: 21px;
      line-height: 1.32;
      font-weight: 950;
      margin: 0 0 8px;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .topic-card p {
      color: var(--color-muted);
      margin: 0 0 12px;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .meta-line {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      color: #8d7580;
      font-size: 13px;
      font-weight: 800;
      margin-bottom: 12px;
    }

    .card-link {
      color: var(--color-wine);
      font-weight: 950;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .card-link span {
      transition: var(--transition);
    }

    .topic-card:hover .card-link span {
      transform: translateX(4px);
    }

    .campaign-banner {
      margin: 18px 0;
      padding: 26px;
      border-radius: var(--radius-xl);
      color: var(--white);
      background:
        radial-gradient(circle at 80% 30%, rgba(255, 184, 77, .42), transparent 27%),
        linear-gradient(120deg, var(--color-wine), var(--color-plum));
      border: 1px solid rgba(255, 244, 232, .16);
      box-shadow: var(--shadow-soft);
      overflow: hidden;
      position: relative;
    }

    .campaign-banner::after {
      content: "";
      position: absolute;
      right: -30px;
      top: -40px;
      width: 180px;
      height: 180px;
      border-radius: 50%;
      background: repeating-conic-gradient(from 10deg, rgba(255, 244, 232, .34) 0 8deg, transparent 8deg 18deg);
      opacity: .8;
    }

    .campaign-banner h3 {
      position: relative;
      z-index: 1;
      font-size: 25px;
      font-weight: 950;
      margin-bottom: 8px;
    }

    .campaign-banner p {
      position: relative;
      z-index: 1;
      color: rgba(255, 244, 232, .82);
      max-width: 660px;
      margin-bottom: 18px;
    }

    .sidebar {
      position: sticky;
      top: 132px;
      display: grid;
      gap: 16px;
    }

    .trend-card,
    .note-card {
      padding: 20px;
    }

    .side-title {
      font-size: 18px;
      font-weight: 950;
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .side-title small {
      color: var(--color-coral);
      font-size: 12px;
      font-weight: 950;
    }

    .hot-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 9px;
    }

    .hot-tags a {
      padding: 7px 11px;
      border-radius: var(--radius-pill);
      background: #fff4e8;
      color: var(--color-wine);
      border: 1px solid var(--color-line);
      font-size: 13px;
      font-weight: 850;
    }

    .hot-tags a:hover {
      background: var(--color-coral);
      color: var(--color-plum);
      transform: translateY(-2px);
    }

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

    .safety-list li {
      padding-left: 22px;
      position: relative;
      color: var(--color-muted);
      font-size: 14px;
    }

    .safety-list li::before {
      content: "";
      position: absolute;
      left: 0;
      top: 11px;
      width: 9px;
      height: 9px;
      border-radius: 50%;
      background: var(--color-coral);
      box-shadow: 0 0 0 5px rgba(255, 122, 92, .12);
    }

    .pagination-wrap {
      margin-top: 26px;
    }

    .pagination {
      gap: 8px;
      flex-wrap: wrap;
    }

    .page-link {
      border: 1px solid var(--color-line);
      color: var(--color-wine);
      border-radius: var(--radius-pill) !important;
      min-width: 42px;
      min-height: 42px;
      display: grid;
      place-items: center;
      font-weight: 900;
      background: var(--white);
      box-shadow: 0 8px 20px rgba(111, 29, 63, .07);
    }

    .page-link:hover {
      color: var(--color-plum);
      background: var(--color-amber);
      border-color: var(--color-amber);
      transform: translateY(-2px);
    }

    .page-item.active .page-link {
      color: var(--color-plum);
      background: var(--color-coral);
      border-color: var(--color-coral);
    }

    .trust-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 14px;
    }

    .trust-item {
      padding: 22px;
      border-radius: 24px;
      background: rgba(255, 244, 232, .08);
      border: 1px solid rgba(255, 244, 232, .13);
      box-shadow: 0 18px 42px rgba(0,0,0,.12);
    }

    .trust-item strong {
      display: block;
      color: var(--color-amber);
      font-size: 29px;
      line-height: 1;
      margin-bottom: 10px;
    }

    .trust-item h3 {
      font-size: 17px;
      font-weight: 950;
      margin-bottom: 7px;
    }

    .trust-item p {
      color: rgba(255, 244, 232, .76);
      margin: 0;
      font-size: 14px;
    }

    .faq-wrap {
      padding: 10px;
      background: var(--white);
    }

    .accordion-item {
      border: 0;
      border-radius: 20px !important;
      overflow: hidden;
      margin-bottom: 10px;
      background: #fff8f0;
    }

    .accordion-button {
      color: var(--color-ink);
      background: #fff8f0;
      font-weight: 950;
      border-radius: 20px !important;
      box-shadow: none;
      padding: 18px 20px;
    }

    .accordion-button:not(.collapsed) {
      color: var(--color-plum);
      background: linear-gradient(90deg, rgba(255, 122, 92, .18), rgba(255, 184, 77, .16));
      box-shadow: none;
    }

    .accordion-button::after {
      width: 34px;
      height: 34px;
      border-radius: 50%;
      background-color: rgba(111, 29, 63, .08);
      background-position: center;
      background-size: 16px;
    }

    .accordion-body {
      color: var(--color-muted);
      padding: 0 20px 20px;
    }

    .lead-card {
      overflow: hidden;
      display: grid;
      grid-template-columns: 1.05fr .95fr;
      background:
        radial-gradient(circle at 88% 14%, rgba(255, 184, 77, .5), transparent 28%),
        linear-gradient(135deg, #6f1d3f, #2b071c);
      color: var(--white);
      border: 0;
      box-shadow: var(--shadow-deep);
    }

    .lead-content {
      padding: 42px;
    }

    .lead-content h2 {
      font-size: clamp(28px, 3.5vw, 42px);
      line-height: 1.18;
      font-weight: 950;
      margin-bottom: 14px;
    }

    .lead-content p {
      color: rgba(255, 244, 232, .8);
      margin-bottom: 24px;
    }

    .lead-form {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
    }

    .lead-form input {
      flex: 1 1 260px;
      min-height: 50px;
      border-radius: var(--radius-pill);
      border: 1px solid rgba(255, 244, 232, .24);
      background: rgba(255, 244, 232, .12);
      color: var(--white);
      padding: 12px 18px;
    }

    .lead-form input::placeholder {
      color: rgba(255, 244, 232, .58);
    }

    .privacy-tip {
      color: rgba(255, 244, 232, .66);
      font-size: 13px;
      margin-top: 12px;
    }

    .lead-visual {
      min-height: 320px;
      background:
        repeating-linear-gradient(90deg, rgba(255, 244, 232, .28) 0 5px, transparent 5px 17px),
        radial-gradient(circle at 50% 50%, rgba(255, 122, 92, .55), transparent 34%);
      margin: 26px;
      border-radius: 28px;
      border: 1px solid rgba(255, 244, 232, .16);
      position: relative;
      overflow: hidden;
    }

    .lead-visual::before {
      content: "18+";
      position: absolute;
      right: 24px;
      top: 24px;
      width: 82px;
      height: 82px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      background: var(--color-amber);
      color: var(--color-plum);
      font-weight: 950;
      font-size: 26px;
      box-shadow: 0 18px 42px rgba(255, 184, 77, .25);
    }

    .lead-visual::after {
      content: "";
      position: absolute;
      left: 24px;
      bottom: 28px;
      right: 24px;
      height: 82px;
      border-radius: 24px;
      background: linear-gradient(90deg, rgba(255,244,232,.18), rgba(255,122,92,.18));
      border: 1px solid rgba(255, 244, 232, .16);
    }

    .site-footer {
      background: #17020e;
      color: rgba(255, 244, 232, .76);
      padding: 54px 0 28px;
      border-top: 1px solid rgba(255, 244, 232, .12);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr .8fr .8fr;
      gap: 34px;
      padding-bottom: 32px;
    }

    .footer-brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      color: var(--white);
      font-weight: 950;
      margin-bottom: 14px;
    }

    .footer-brand:hover {
      color: var(--color-amber);
    }

    .footer-grid p {
      max-width: 520px;
      margin: 0;
      color: rgba(255, 244, 232, .68);
    }

    .footer-title {
      color: var(--color-amber);
      font-weight: 950;
      margin-bottom: 13px;
    }

    .footer-links {
      display: grid;
      gap: 9px;
    }

    .footer-links a {
      color: rgba(255, 244, 232, .72);
    }

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

    .copyright {
      border-top: 1px solid rgba(255, 244, 232, .11);
      padding-top: 20px;
      display: flex;
      justify-content: space-between;
      gap: 18px;
      flex-wrap: wrap;
      font-size: 13px;
      color: rgba(255, 244, 232, .52);
    }

    .offcanvas {
      background: var(--color-plum);
      color: var(--white);
    }

    .offcanvas-header {
      border-bottom: 1px solid rgba(255, 244, 232, .12);
    }

    .btn-close {
      filter: invert(1);
    }

    @media (max-width: 991.98px) {
      .navbar-brand {
        min-width: auto;
      }

      .nav-shell {
        align-items: stretch;
        padding-top: 16px;
        flex-direction: column;
      }

      .main-nav {
        align-items: stretch;
      }

      .nav-search {
        width: 100%;
      }

      .age-pill {
        align-self: flex-start;
      }

      .hero {
        padding-bottom: 56px;
      }

      .filter-panel {
        margin-top: 28px;
      }

      .principle-wrap,
      .content-layout,
      .lead-card {
        grid-template-columns: 1fr;
      }

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

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

      .lead-visual {
        min-height: 230px;
      }
    }

    @media (max-width: 767.98px) {
      body {
        background: linear-gradient(180deg, #2b071c 0, #fff4e8 640px, #fffaf4 100%);
      }

      .navbar {
        padding: 10px 0;
      }

      .brand-text small {
        display: none;
      }

      .trend-row {
        padding: 7px 0;
      }

      .limit-strip {
        margin-top: 20px;
        font-size: 13px;
        align-items: flex-start;
        border-radius: 18px;
      }

      .hero-inner {
        padding-top: 14px;
      }

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

      .hero-actions {
        flex-direction: column;
      }

      .btn-brand,
      .btn-ghost {
        width: 100%;
      }

      .filter-panel {
        display: none;
      }

      .mobile-filter {
        display: block;
      }

      .section {
        padding: 56px 0;
      }

      .principle-card,
      .lead-content {
        padding: 24px;
      }

      .mini-stat,
      .sidebar,
      .trust-grid,
      .footer-grid {
        grid-template-columns: 1fr;
      }

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

      .abstract-cover {
        min-height: 170px;
      }

      .campaign-banner {
        padding: 22px;
      }

      .lead-form {
        flex-direction: column;
      }

      .lead-form input,
      .lead-form .btn-brand {
        width: 100%;
      }

      .copyright {
        display: grid;
      }
    }

    @media (max-width: 520px) {
      .container {
        padding-left: 18px;
        padding-right: 18px;
      }

      .navbar-brand {
        gap: 9px;
      }

      .logo-mark {
        width: 40px;
        height: 40px;
        flex-basis: 40px;
      }

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

      .group-note {
        display: grid;
      }

      .principle-item {
        grid-template-columns: 1fr;
      }

      .chapter {
        width: 44px;
        height: 44px;
      }

      .topic-card h3 {
        font-size: 19px;
      }

      .lead-visual {
        margin: 0 20px 24px;
      }
    }