/* roulang page: index */
:root {
      --bg: #090a12;
      --bg-soft: #10121f;
      --surface: rgba(255,255,255,.08);
      --surface-strong: rgba(255,255,255,.13);
      --card: #151827;
      --card-light: #ffffff;
      --text: #f7f3ea;
      --text-dark: #171821;
      --muted: #b5b8c7;
      --muted-dark: #636777;
      --line: rgba(255,255,255,.14);
      --line-dark: rgba(20,24,38,.10);
      --primary: #ff6b35;
      --primary-2: #ffb000;
      --secondary: #7c5cff;
      --green: #32d39a;
      --cream: #fff6e6;
      --radius-sm: 12px;
      --radius-md: 18px;
      --radius-lg: 28px;
      --radius-xl: 38px;
      --shadow-sm: 0 12px 30px rgba(0,0,0,.14);
      --shadow-md: 0 22px 60px rgba(0,0,0,.22);
      --shadow-glow: 0 20px 70px rgba(255,107,53,.22);
      --container: 1160px;
      --ease: all .24s ease;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
      line-height: 1.72;
      color: var(--text-dark);
      background:
        radial-gradient(circle at top left, rgba(255,107,53,.18), transparent 32rem),
        radial-gradient(circle at 85% 10%, rgba(124,92,255,.16), transparent 28rem),
        linear-gradient(180deg, #090a12 0%, #11131f 26%, #f7f2e8 26%, #fffaf1 100%);
      overflow-x: hidden;
    }

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

    a:hover {
      color: var(--primary);
    }

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

    button,
    input,
    textarea {
      font: inherit;
    }

    button:focus,
    a:focus,
    input:focus,
    textarea:focus {
      outline: 3px solid rgba(255,176,0,.35);
      outline-offset: 3px;
    }

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

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

    .section-tight {
      padding: 54px 0;
    }

    .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      border-radius: 999px;
      background: rgba(255,107,53,.12);
      color: #9b3b19;
      font-weight: 800;
      font-size: 13px;
      letter-spacing: .02em;
      margin-bottom: 14px;
    }

    .section-title {
      font-size: clamp(28px, 4vw, 46px);
      line-height: 1.14;
      font-weight: 900;
      letter-spacing: -.04em;
      margin: 0 0 14px;
      color: #151722;
    }

    .section-desc {
      max-width: 760px;
      color: var(--muted-dark);
      font-size: 17px;
      margin: 0 0 34px;
    }

    .text-on-dark .section-title,
    .text-on-dark .section-desc {
      color: var(--text);
    }

    .text-on-dark .section-desc {
      color: var(--muted);
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      padding: 18px 0 8px;
      pointer-events: none;
    }

    .nav-shell {
      pointer-events: auto;
      border: 1px solid rgba(255,255,255,.16);
      border-radius: 999px;
      background: rgba(14,16,28,.78);
      backdrop-filter: blur(18px);
      box-shadow: 0 18px 50px rgba(0,0,0,.24);
      padding: 10px 12px;
    }

    .navbar {
      padding: 0;
    }

    .navbar-brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: var(--text) !important;
      font-weight: 900;
      letter-spacing: -.02em;
      font-size: 19px;
      margin-right: 22px;
      white-space: nowrap;
    }

    .logo-mark {
      width: 38px;
      height: 38px;
      border-radius: 14px;
      display: grid;
      place-items: center;
      background:
        radial-gradient(circle at 70% 18%, #ffe09a 0 9px, transparent 10px),
        linear-gradient(135deg, var(--primary), var(--secondary));
      color: #fff;
      box-shadow: 0 10px 26px rgba(255,107,53,.32);
    }

    .navbar-toggler {
      border: 0;
      color: var(--text);
      padding: 8px 10px;
      border-radius: 14px;
      background: rgba(255,255,255,.08);
    }

    .navbar-toggler:focus {
      box-shadow: none;
    }

    .nav-link {
      color: rgba(255,255,255,.78) !important;
      font-weight: 700;
      padding: 10px 16px !important;
      border-radius: 999px;
      margin: 0 4px;
    }

    .nav-link:hover,
    .nav-link.active {
      color: #fff !important;
      background: rgba(255,255,255,.10);
    }

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

    .mini-search {
      min-width: 210px;
      position: relative;
    }

    .mini-search i {
      position: absolute;
      left: 14px;
      top: 50%;
      transform: translateY(-50%);
      color: rgba(255,255,255,.56);
      font-size: 13px;
    }

    .mini-search input {
      width: 100%;
      height: 42px;
      border: 1px solid rgba(255,255,255,.13);
      border-radius: 999px;
      background: rgba(255,255,255,.07);
      color: #fff;
      padding: 0 14px 0 36px;
      font-size: 14px;
    }

    .mini-search input::placeholder {
      color: rgba(255,255,255,.50);
    }

    .btn-brand,
    .btn-ghost,
    .btn-dark-soft,
    .btn-light-soft {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      border: 0;
      border-radius: 999px;
      min-height: 46px;
      padding: 12px 20px;
      font-weight: 900;
      line-height: 1.2;
      transition: var(--ease);
      cursor: pointer;
      white-space: nowrap;
    }

    .btn-brand {
      color: #19120c;
      background: linear-gradient(135deg, var(--primary-2), var(--primary));
      box-shadow: 0 16px 34px rgba(255,107,53,.34);
    }

    .btn-brand:hover {
      transform: translateY(-2px);
      color: #16120d;
      box-shadow: 0 20px 44px rgba(255,107,53,.42);
    }

    .btn-ghost {
      color: #fff;
      background: rgba(255,255,255,.10);
      border: 1px solid rgba(255,255,255,.16);
    }

    .btn-ghost:hover {
      background: rgba(255,255,255,.17);
      color: #fff;
      transform: translateY(-2px);
    }

    .btn-dark-soft {
      background: #171926;
      color: #fff;
      box-shadow: 0 14px 30px rgba(19,22,35,.20);
    }

    .btn-dark-soft:hover {
      color: #fff;
      background: #25283a;
      transform: translateY(-2px);
    }

    .btn-light-soft {
      background: rgba(255,255,255,.88);
      color: #1a1c27;
      border: 1px solid rgba(255,255,255,.62);
    }

    .btn-light-soft:hover {
      color: #10121a;
      transform: translateY(-2px);
      background: #fff;
    }

    .hero {
      min-height: 760px;
      padding: 78px 0 66px;
      color: var(--text);
      position: relative;
      overflow: hidden;
    }

    .hero::before {
      content: "";
      position: absolute;
      inset: -140px -80px auto auto;
      width: 560px;
      height: 560px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(255,176,0,.25), transparent 66%);
      filter: blur(6px);
      pointer-events: none;
    }

    .hero-stage {
      position: relative;
      border-radius: var(--radius-xl);
      overflow: hidden;
      min-height: 590px;
      background:
        linear-gradient(90deg, rgba(8,10,18,.92) 0%, rgba(8,10,18,.78) 44%, rgba(8,10,18,.30) 100%),
        radial-gradient(circle at 74% 25%, rgba(255,176,0,.38), transparent 22rem),
        radial-gradient(circle at 88% 70%, rgba(124,92,255,.38), transparent 22rem),
        linear-gradient(135deg, #171827, #090a12 48%, #24140e);
      box-shadow: var(--shadow-md);
      border: 1px solid rgba(255,255,255,.12);
    }

    .hero-stage::after {
      content: "";
      position: absolute;
      inset: 0;
      background:
        linear-gradient(90deg, transparent 0 48%, rgba(255,255,255,.06) 49% 50%, transparent 51% 100%),
        repeating-linear-gradient(90deg, rgba(255,255,255,.045) 0 1px, transparent 1px 86px);
      opacity: .35;
      pointer-events: none;
    }

    .poster-wall {
      position: absolute;
      right: -36px;
      top: 58px;
      width: 52%;
      height: calc(100% - 116px);
      display: grid;
      grid-template-columns: repeat(3, minmax(120px, 1fr));
      gap: 16px;
      transform: rotate(-2deg);
      z-index: 1;
      opacity: .96;
    }

    .poster-tile {
      border-radius: 26px;
      min-height: 168px;
      position: relative;
      overflow: hidden;
      border: 1px solid rgba(255,255,255,.16);
      box-shadow: 0 20px 50px rgba(0,0,0,.30);
      background: linear-gradient(145deg, rgba(255,255,255,.16), rgba(255,255,255,.04));
    }

    .poster-tile:nth-child(1) { background: linear-gradient(145deg, #ff6b35, #36151a); }
    .poster-tile:nth-child(2) { background: linear-gradient(145deg, #7c5cff, #10121f); margin-top: 36px; }
    .poster-tile:nth-child(3) { background: linear-gradient(145deg, #32d39a, #0b2d28); }
    .poster-tile:nth-child(4) { background: linear-gradient(145deg, #ffb000, #3a2306); }
    .poster-tile:nth-child(5) { background: linear-gradient(145deg, #243b55, #141e30); margin-top: 24px; }
    .poster-tile:nth-child(6) { background: linear-gradient(145deg, #e96443, #904e95); }

    .poster-tile::before {
      content: "";
      position: absolute;
      inset: 18px;
      border: 1px solid rgba(255,255,255,.18);
      border-radius: 18px;
    }

    .poster-tile span {
      position: absolute;
      left: 18px;
      right: 18px;
      bottom: 18px;
      color: rgba(255,255,255,.94);
      font-weight: 900;
      font-size: 16px;
      z-index: 2;
    }

    .hero-content {
      position: relative;
      z-index: 2;
      max-width: 650px;
      padding: clamp(34px, 6vw, 72px);
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      padding: 8px 13px;
      border-radius: 999px;
      background: rgba(255,255,255,.10);
      border: 1px solid rgba(255,255,255,.16);
      color: rgba(255,255,255,.86);
      font-weight: 800;
      font-size: 14px;
      margin-bottom: 22px;
    }

    .hero h1 {
      font-size: clamp(40px, 7vw, 74px);
      line-height: 1.04;
      letter-spacing: -.06em;
      font-weight: 950;
      margin: 0 0 22px;
    }

    .hero .lead {
      color: rgba(255,255,255,.76);
      font-size: clamp(17px, 2vw, 20px);
      line-height: 1.85;
      margin: 0 0 30px;
      max-width: 610px;
    }

    .hero-cta {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      align-items: center;
      margin-bottom: 34px;
    }

    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 12px;
      max-width: 610px;
    }

    .metric-pill {
      border-radius: 20px;
      background: rgba(255,255,255,.08);
      border: 1px solid rgba(255,255,255,.14);
      padding: 16px;
      backdrop-filter: blur(10px);
    }

    .metric-pill strong {
      display: block;
      font-size: 25px;
      line-height: 1.1;
      color: #fff;
      font-weight: 950;
      margin-bottom: 5px;
    }

    .metric-pill span {
      font-size: 13px;
      color: rgba(255,255,255,.65);
      font-weight: 700;
    }

    .directory-wrap {
      display: grid;
      grid-template-columns: 1.15fr .85fr;
      gap: 22px;
      align-items: stretch;
    }

    .directory-panel,
    .side-panel,
    .value-card,
    .collection-card,
    .timeline-card,
    .news-panel,
    .faq-card,
    .download-card {
      border-radius: var(--radius-lg);
      border: 1px solid var(--line-dark);
      background: rgba(255,255,255,.74);
      box-shadow: var(--shadow-sm);
      backdrop-filter: blur(16px);
    }

    .directory-panel {
      padding: 26px;
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 14px;
    }

    .directory-item {
      display: flex;
      gap: 14px;
      padding: 18px;
      border-radius: 22px;
      background: #fffaf3;
      border: 1px solid rgba(25,28,40,.08);
      min-height: 132px;
      transition: var(--ease);
    }

    .directory-item:hover {
      transform: translateY(-4px);
      box-shadow: 0 18px 34px rgba(24,26,38,.12);
      border-color: rgba(255,107,53,.24);
    }

    .directory-icon {
      width: 46px;
      height: 46px;
      flex: 0 0 auto;
      border-radius: 16px;
      display: grid;
      place-items: center;
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      box-shadow: 0 14px 24px rgba(124,92,255,.20);
    }

    .directory-item h3 {
      font-size: 18px;
      font-weight: 900;
      margin: 0 0 7px;
      color: #191b27;
    }

    .directory-item p {
      color: var(--muted-dark);
      margin: 0;
      font-size: 14.5px;
      line-height: 1.7;
    }

    .side-panel {
      padding: 28px;
      background:
        linear-gradient(145deg, rgba(21,24,39,.96), rgba(45,26,20,.92)),
        radial-gradient(circle at 80% 20%, rgba(255,176,0,.28), transparent 12rem);
      color: var(--text);
      overflow: hidden;
      position: relative;
    }

    .side-panel::after {
      content: "";
      position: absolute;
      right: -48px;
      bottom: -70px;
      width: 210px;
      height: 210px;
      border-radius: 50%;
      background: rgba(255,107,53,.18);
      filter: blur(2px);
    }

    .side-panel h3 {
      font-size: 25px;
      font-weight: 950;
      letter-spacing: -.03em;
      margin: 0 0 12px;
      position: relative;
      z-index: 1;
    }

    .side-panel p {
      color: rgba(255,255,255,.70);
      margin-bottom: 22px;
      position: relative;
      z-index: 1;
    }

    .check-list {
      list-style: none;
      padding: 0;
      margin: 0;
      display: grid;
      gap: 12px;
      position: relative;
      z-index: 1;
    }

    .check-list li {
      display: flex;
      gap: 10px;
      align-items: flex-start;
      color: rgba(255,255,255,.82);
      font-weight: 700;
    }

    .check-list i {
      color: var(--green);
      margin-top: 5px;
    }

    .rail-section {
      overflow: hidden;
    }

    .poster-rail {
      display: flex;
      gap: 18px;
      overflow-x: auto;
      padding: 8px 2px 22px;
      scroll-snap-type: x mandatory;
      scrollbar-width: thin;
      scrollbar-color: rgba(255,107,53,.55) rgba(0,0,0,.08);
    }

    .rail-card {
      min-width: 212px;
      height: 306px;
      border-radius: 30px;
      position: relative;
      overflow: hidden;
      scroll-snap-align: start;
      background: #151827;
      border: 1px solid rgba(255,255,255,.18);
      box-shadow: 0 18px 36px rgba(16,18,31,.18);
      transition: var(--ease);
    }

    .rail-card:nth-child(1) { background: linear-gradient(145deg, #ff6b35, #191b27 72%); }
    .rail-card:nth-child(2) { background: linear-gradient(145deg, #7c5cff, #151827 72%); }
    .rail-card:nth-child(3) { background: linear-gradient(145deg, #32d39a, #111827 72%); }
    .rail-card:nth-child(4) { background: linear-gradient(145deg, #ffb000, #2b1b0a 72%); }
    .rail-card:nth-child(5) { background: linear-gradient(145deg, #e96443, #191b27 72%); }
    .rail-card:nth-child(6) { background: linear-gradient(145deg, #243b55, #141e30 72%); }

    .rail-card:hover {
      transform: translateY(-8px) scale(1.01);
      box-shadow: 0 24px 56px rgba(16,18,31,.28);
    }

    .rail-card::before {
      content: "";
      position: absolute;
      inset: 18px;
      border-radius: 22px;
      border: 1px solid rgba(255,255,255,.16);
      background:
        radial-gradient(circle at 50% 36%, rgba(255,255,255,.20), transparent 46%),
        linear-gradient(180deg, transparent 20%, rgba(0,0,0,.48) 100%);
    }

    .rail-badge {
      position: absolute;
      top: 18px;
      left: 18px;
      padding: 6px 10px;
      border-radius: 999px;
      background: rgba(255,255,255,.16);
      color: #fff;
      font-size: 12px;
      font-weight: 900;
      backdrop-filter: blur(8px);
    }

    .rail-info {
      position: absolute;
      left: 18px;
      right: 18px;
      bottom: 18px;
      color: #fff;
    }

    .rail-info h3 {
      font-size: 21px;
      font-weight: 950;
      margin: 0 0 8px;
    }

    .rail-info p {
      color: rgba(255,255,255,.70);
      font-size: 14px;
      margin: 0 0 12px;
    }

    .rail-link {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      color: #fff;
      font-size: 13px;
      font-weight: 900;
      padding: 8px 11px;
      border-radius: 999px;
      background: rgba(255,255,255,.14);
    }

    .rail-link:hover {
      color: #fff;
      background: rgba(255,255,255,.23);
    }

    .collection-grid {
      display: grid;
      grid-template-columns: 1.1fr .9fr .9fr;
      gap: 18px;
    }

    .collection-card {
      padding: 24px;
      min-height: 238px;
      position: relative;
      overflow: hidden;
      transition: var(--ease);
    }

    .collection-card.featured {
      background:
        linear-gradient(145deg, rgba(255,107,53,.94), rgba(124,92,255,.88)),
        radial-gradient(circle at top right, rgba(255,255,255,.38), transparent 13rem);
      color: #fff;
      border-color: rgba(255,255,255,.26);
    }

    .collection-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 22px 46px rgba(20,24,38,.14);
    }

    .collection-count {
      display: inline-flex;
      padding: 6px 10px;
      border-radius: 999px;
      background: rgba(255,107,53,.12);
      color: #8d3516;
      font-weight: 900;
      font-size: 13px;
      margin-bottom: 18px;
    }

    .collection-card.featured .collection-count {
      background: rgba(255,255,255,.18);
      color: #fff;
    }

    .collection-card h3 {
      font-size: 23px;
      font-weight: 950;
      letter-spacing: -.03em;
      margin-bottom: 10px;
    }

    .collection-card p {
      color: var(--muted-dark);
      margin-bottom: 20px;
    }

    .collection-card.featured p {
      color: rgba(255,255,255,.78);
    }

    .arrow-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: #181a25;
      font-weight: 950;
    }

    .collection-card.featured .arrow-link {
      color: #fff;
    }

    .arrow-link:hover {
      gap: 12px;
    }

    .value-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 16px;
    }

    .value-card {
      padding: 24px;
      background: #fff;
      min-height: 230px;
      transition: var(--ease);
    }

    .value-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 22px 44px rgba(20,24,38,.13);
    }

    .value-card .num {
      font-size: 13px;
      color: var(--primary);
      font-weight: 950;
      letter-spacing: .08em;
      margin-bottom: 16px;
    }

    .value-card h3 {
      font-size: 20px;
      font-weight: 950;
      margin-bottom: 10px;
      color: #151722;
    }

    .value-card p {
      color: var(--muted-dark);
      font-size: 15px;
      margin: 0;
    }

    .timeline-section {
      background: #11131f;
      color: var(--text);
      border-radius: 42px;
      margin: 26px auto;
      width: min(100% - 32px, 1240px);
      overflow: hidden;
      box-shadow: var(--shadow-md);
    }

    .timeline-track {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 0;
      border: 1px solid rgba(255,255,255,.10);
      border-radius: 28px;
      overflow: hidden;
      background: rgba(255,255,255,.04);
    }

    .timeline-card {
      border-radius: 0;
      border: 0;
      border-right: 1px solid rgba(255,255,255,.10);
      background: rgba(255,255,255,.04);
      padding: 25px;
      color: var(--text);
      box-shadow: none;
      position: relative;
    }

    .timeline-card:last-child {
      border-right: 0;
    }

    .timeline-dot {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      background: linear-gradient(135deg, var(--primary-2), var(--primary));
      color: #19120c;
      font-weight: 950;
      margin-bottom: 18px;
      box-shadow: 0 12px 26px rgba(255,107,53,.28);
    }

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

    .timeline-card p {
      color: rgba(255,255,255,.68);
      margin: 0;
      font-size: 15px;
    }

    .faq-grid {
      display: grid;
      grid-template-columns: .86fr 1.14fr;
      gap: 22px;
      align-items: start;
    }

    .faq-note {
      padding: 30px;
      border-radius: var(--radius-lg);
      color: #fff;
      background:
        linear-gradient(145deg, rgba(21,24,39,.96), rgba(22,26,42,.92)),
        radial-gradient(circle at 20% 10%, rgba(255,107,53,.22), transparent 12rem);
      box-shadow: var(--shadow-sm);
    }

    .faq-note h3 {
      font-size: 28px;
      font-weight: 950;
      margin-bottom: 14px;
      letter-spacing: -.03em;
    }

    .faq-note p {
      color: rgba(255,255,255,.70);
      margin-bottom: 18px;
    }

    .faq-card {
      background: #fff;
      padding: 0;
      overflow: hidden;
    }

    .accordion-item {
      border: 0;
      border-bottom: 1px solid rgba(20,24,38,.09);
      background: transparent;
    }

    .accordion-item:last-child {
      border-bottom: 0;
    }

    .accordion-button {
      padding: 20px 22px;
      font-weight: 950;
      color: #151722;
      background: #fff;
      box-shadow: none;
    }

    .accordion-button:not(.collapsed) {
      color: #9b3b19;
      background: #fff8ee;
      box-shadow: none;
    }

    .accordion-button:focus {
      box-shadow: none;
      border-color: transparent;
    }

    .accordion-body {
      padding: 0 22px 22px;
      color: var(--muted-dark);
    }

    .news-layout {
      display: grid;
      grid-template-columns: 1.25fr .75fr;
      gap: 22px;
      align-items: start;
    }

    .news-panel {
      background: #fff;
      padding: 8px;
      overflow: hidden;
    }

    .news-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }

    .news-list li + li {
      border-top: 1px solid rgba(20,24,38,.08);
    }

    .news-list a {
      display: grid;
      grid-template-columns: auto 1fr auto;
      gap: 15px;
      align-items: center;
      padding: 18px;
      border-radius: 20px;
      color: #171821;
    }

    .news-list a:hover {
      background: #fff6e6;
      color: #171821;
    }

    .news-tag {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-width: 72px;
      padding: 6px 10px;
      border-radius: 999px;
      background: rgba(124,92,255,.10);
      color: #5842c6;
      font-size: 13px;
      font-weight: 900;
    }

    .news-title {
      font-weight: 900;
      line-height: 1.45;
    }

    .news-meta {
      color: var(--muted-dark);
      font-size: 13px;
      white-space: nowrap;
    }

    .recommend-card {
      border-radius: var(--radius-lg);
      padding: 26px;
      color: #fff;
      background:
        linear-gradient(145deg, rgba(255,107,53,.95), rgba(24,26,38,.96)),
        radial-gradient(circle at top right, rgba(255,176,0,.30), transparent 12rem);
      box-shadow: var(--shadow-sm);
      position: sticky;
      top: 110px;
    }

    .recommend-card h3 {
      font-size: 27px;
      font-weight: 950;
      letter-spacing: -.03em;
      margin-bottom: 12px;
    }

    .recommend-card p {
      color: rgba(255,255,255,.76);
      margin-bottom: 22px;
    }

    .recommend-mini {
      display: grid;
      gap: 10px;
      margin-bottom: 22px;
    }

    .recommend-mini span {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      padding: 11px 12px;
      border-radius: 14px;
      background: rgba(255,255,255,.12);
      color: rgba(255,255,255,.86);
      font-weight: 800;
      font-size: 14px;
    }

    .download-section {
      padding-bottom: 92px;
    }

    .download-card {
      display: grid;
      grid-template-columns: .95fr 1.05fr;
      gap: 22px;
      padding: 28px;
      background:
        linear-gradient(135deg, rgba(255,255,255,.88), rgba(255,249,238,.88)),
        radial-gradient(circle at 12% 20%, rgba(255,107,53,.12), transparent 18rem);
    }

    .download-copy {
      padding: 16px 12px;
    }

    .download-copy h2 {
      font-size: clamp(30px, 4vw, 48px);
      line-height: 1.15;
      letter-spacing: -.04em;
      font-weight: 950;
      margin-bottom: 16px;
    }

    .download-copy p {
      color: var(--muted-dark);
      font-size: 17px;
      margin-bottom: 22px;
    }

    .download-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .download-tags span {
      padding: 8px 12px;
      border-radius: 999px;
      background: #fff;
      border: 1px solid rgba(20,24,38,.08);
      color: #383b48;
      font-weight: 800;
      font-size: 14px;
    }

    .lead-form {
      background: #11131f;
      border-radius: 26px;
      padding: 24px;
      color: #fff;
      box-shadow: 0 22px 48px rgba(17,19,31,.22);
    }

    .form-label {
      color: rgba(255,255,255,.78);
      font-weight: 800;
      margin-bottom: 8px;
      font-size: 14px;
    }

    .form-control,
    .form-select {
      border-radius: 16px;
      min-height: 48px;
      background: rgba(255,255,255,.08);
      border: 1px solid rgba(255,255,255,.13);
      color: #fff;
      padding: 12px 14px;
    }

    .form-control::placeholder {
      color: rgba(255,255,255,.42);
    }

    .form-control:focus,
    .form-select:focus {
      background: rgba(255,255,255,.10);
      color: #fff;
      border-color: rgba(255,176,0,.65);
      box-shadow: 0 0 0 .25rem rgba(255,176,0,.14);
    }

    .form-select option {
      color: #171821;
    }

    .form-hint {
      color: rgba(255,255,255,.55);
      font-size: 13px;
      margin-top: 12px;
    }

    .form-message {
      display: none;
      margin-top: 14px;
      padding: 12px 14px;
      border-radius: 16px;
      color: #b7ffe5;
      background: rgba(50,211,154,.12);
      border: 1px solid rgba(50,211,154,.22);
      font-weight: 800;
    }

    .site-footer {
      background: #090a12;
      color: rgba(255,255,255,.72);
      padding: 48px 0 34px;
      border-top: 1px solid rgba(255,255,255,.10);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 24px;
      align-items: start;
    }

    .footer-brand {
      display: flex;
      align-items: center;
      gap: 12px;
      color: #fff;
      font-size: 20px;
      font-weight: 950;
      margin-bottom: 12px;
    }

    .footer-text {
      max-width: 650px;
      color: rgba(255,255,255,.62);
      margin: 0;
    }

    .footer-links {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
      justify-content: flex-end;
    }

    .footer-links a {
      padding: 9px 12px;
      border-radius: 999px;
      background: rgba(255,255,255,.07);
      color: rgba(255,255,255,.76);
      font-weight: 800;
      font-size: 14px;
    }

    .footer-links a:hover {
      color: #fff;
      background: rgba(255,255,255,.13);
    }

    .copyright {
      margin-top: 28px;
      padding-top: 22px;
      border-top: 1px solid rgba(255,255,255,.10);
      display: flex;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
      color: rgba(255,255,255,.48);
      font-size: 14px;
    }

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

      .poster-wall {
        opacity: .46;
        width: 58%;
      }

      .directory-wrap,
      .news-layout,
      .faq-grid,
      .download-card {
        grid-template-columns: 1fr;
      }

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

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

      .recommend-card {
        position: relative;
        top: auto;
      }
    }

    @media (max-width: 768px) {
      body {
        background:
          radial-gradient(circle at top left, rgba(255,107,53,.18), transparent 22rem),
          linear-gradient(180deg, #090a12 0%, #11131f 20%, #fffaf1 20%, #fffaf1 100%);
      }

      .site-header {
        padding: 12px 0 6px;
      }

      .nav-shell {
        border-radius: 26px;
      }

      .navbar-collapse {
        padding-top: 12px;
      }

      .nav-actions {
        width: 100%;
        margin: 12px 0 0;
      }

      .nav-actions .btn-brand {
        width: 100%;
      }

      .nav-link {
        margin: 4px 0;
      }

      .hero {
        min-height: auto;
        padding: 42px 0 48px;
      }

      .hero-stage {
        min-height: auto;
        border-radius: 30px;
      }

      .hero-content {
        padding: 34px 24px;
      }

      .poster-wall {
        position: relative;
        right: auto;
        top: auto;
        width: auto;
        height: auto;
        grid-template-columns: repeat(3, 1fr);
        padding: 0 22px 26px;
        transform: none;
        opacity: .88;
      }

      .poster-tile {
        min-height: 116px;
        border-radius: 20px;
      }

      .poster-tile span {
        font-size: 13px;
        left: 12px;
        right: 12px;
        bottom: 12px;
      }

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

      .section {
        padding: 56px 0;
      }

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

      .collection-grid,
      .value-grid,
      .timeline-track {
        grid-template-columns: 1fr;
      }

      .timeline-card {
        border-right: 0;
        border-bottom: 1px solid rgba(255,255,255,.10);
      }

      .timeline-card:last-child {
        border-bottom: 0;
      }

      .news-list a {
        grid-template-columns: 1fr;
        gap: 8px;
      }

      .news-tag {
        width: fit-content;
      }

      .news-meta {
        white-space: normal;
      }

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

      .footer-links {
        justify-content: flex-start;
      }
    }

    @media (max-width: 520px) {
      .container-custom {
        width: min(100% - 22px, var(--container));
      }

      .navbar-brand {
        font-size: 17px;
      }

      .logo-mark {
        width: 34px;
        height: 34px;
        border-radius: 12px;
      }

      .hero-cta,
      .download-tags {
        flex-direction: column;
        align-items: stretch;
      }

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

      .poster-wall {
        grid-template-columns: 1fr;
      }

      .poster-tile:nth-child(n+4) {
        display: none;
      }

      .rail-card {
        min-width: 184px;
        height: 278px;
      }

      .directory-panel,
      .side-panel,
      .lead-form,
      .download-card {
        padding: 18px;
      }

      .section-title {
        letter-spacing: -.03em;
      }
    }

/* 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}