/* roulang page: index */
:root {
      --bg-dark: #0B0F19;
      --bg-card: rgba(18, 24, 38, 0.85);
      --bg-card-hover: rgba(26, 35, 55, 0.95);
      --cyan: #00F0FF;
      --cyan-glow: rgba(0, 240, 255, 0.25);
      --purple: #7B2CBF;
      --emerald: #10B981;
      --text-main: #FFFFFF;
      --text-muted: #94A3B8;
      --border-color: rgba(255, 255, 255, 0.1);
      --border-accent: rgba(0, 240, 255, 0.4);
      --font-stack: system-ui, -apple-system, "PingFang SC", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --shadow-card: 0 10px 30px -10px rgba(0, 240, 255, 0.08);
      --shadow-hover: 0 15px 35px -5px rgba(0, 240, 255, 0.22);
      --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    html {
      scroll-behavior: smooth;
      background-color: var(--bg-dark);
      color: var(--text-main);
      font-family: var(--font-stack);
    }

    body {
      overflow-x: hidden;
      line-height: 1.65;
      font-size: 16px;
      background: radial-gradient(circle at 50% 0%, #151b2e 0%, var(--bg-dark) 70%);
      min-height: 100vh;
    }

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

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

    .container {
      width: 100%;
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 1.5rem;
    }

    /* 顶部双行导航系统 */
    .top-bar {
      background: rgba(8, 12, 20, 0.95);
      border-bottom: 1px solid var(--border-color);
      font-size: 0.85rem;
      color: var(--text-muted);
      padding: 0.45rem 0;
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .status-badge {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      color: var(--emerald);
      font-weight: 500;
    }
    .status-dot {
      width: 7px;
      height: 7px;
      background: var(--emerald);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--emerald);
      animation: pulse 2s infinite;
    }
    @keyframes pulse {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.5; transform: scale(0.85); }
    }

    .main-nav-wrapper {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(11, 15, 25, 0.85);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border-color);
    }
    .nav-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      font-size: 1.25rem;
      font-weight: 800;
      color: #fff;
      letter-spacing: -0.02em;
    }
    .logo-glow-icon {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, var(--cyan), var(--purple));
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #0b0f19;
      font-size: 1.1rem;
      box-shadow: 0 0 15px var(--cyan-glow);
    }
    .nav-menu {
      display: flex;
      align-items: center;
      gap: 2rem;
      list-style: none;
    }
    .nav-menu a {
      font-size: 0.95rem;
      color: var(--text-muted);
      font-weight: 500;
      position: relative;
    }
    .nav-menu a:hover,
    .nav-menu a.active {
      color: var(--cyan);
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 1rem;
    }
    .btn-capsule {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      padding: 0.6rem 1.4rem;
      border-radius: 9999px;
      font-size: 0.9rem;
      font-weight: 600;
      min-height: 44px;
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      white-space: nowrap;
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--cyan) 0%, #0099ff 100%);
      color: #040914;
      box-shadow: 0 0 20px rgba(0, 240, 255, 0.35);
    }
    .btn-primary:hover {
      box-shadow: 0 0 28px rgba(0, 240, 255, 0.6);
      transform: translateY(-2px);
    }
    .btn-secondary {
      background: rgba(255, 255, 255, 0.05);
      border-color: var(--border-color);
      color: var(--text-main);
    }
    .btn-secondary:hover {
      background: rgba(255, 255, 255, 0.12);
      border-color: var(--cyan);
      color: var(--cyan);
      transform: translateY(-2px);
    }
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      color: #fff;
      font-size: 1.5rem;
      cursor: pointer;
      min-height: 44px;
      min-width: 44px;
      align-items: center;
      justify-content: center;
    }

    /* 通用板块系统 */
    section {
      padding: 5.5rem 0;
      position: relative;
    }
    .section-header {
      margin-bottom: 3.5rem;
      max-width: 760px;
    }
    .section-header.text-center {
      margin-left: auto;
      margin-right: auto;
      text-align: center;
    }
    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      font-size: 0.8rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: var(--cyan);
      background: rgba(0, 240, 255, 0.1);
      border: 1px solid rgba(0, 240, 255, 0.2);
      padding: 0.25rem 0.75rem;
      border-radius: 9999px;
      margin-bottom: 1rem;
    }
    .section-title {
      font-size: clamp(1.75rem, 3.5vw, 2.4rem);
      font-weight: 700;
      line-height: 1.25;
      margin-bottom: 1rem;
      color: #fff;
    }
    .section-desc {
      color: var(--text-muted);
      font-size: 1.05rem;
      line-height: 1.7;
    }

    /* 板块 1: 首屏叙事与创作者主页头图架构 */
    .hero-section {
      padding: 3rem 0 4.5rem;
      position: relative;
      overflow: hidden;
    }
    .hero-banner-card {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      background: #111726;
      border: 1px solid var(--border-color);
      box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
    }
    .hero-cover-bg {
      height: 380px;
      width: 100%;
      object-fit: cover;
      filter: brightness(0.65);
    }
    .hero-cover-overlay {
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background: linear-gradient(180deg, rgba(11, 15, 25, 0.1) 0%, rgba(11, 15, 25, 0.95) 100%);
    }
    .hero-profile-bar {
      position: relative;
      margin-top: -80px;
      padding: 0 2.5rem 2.5rem;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: flex-end;
      gap: 1.5rem;
    }
    .hero-identity {
      display: flex;
      align-items: flex-end;
      gap: 1.5rem;
    }
    .hero-avatar {
      width: 110px;
      height: 110px;
      border-radius: var(--radius-md);
      border: 3px solid var(--cyan);
      box-shadow: 0 0 25px var(--cyan-glow);
      background: #0f172a;
      overflow: hidden;
      flex-shrink: 0;
    }
    .hero-avatar img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .hero-meta h1 {
      font-size: clamp(1.8rem, 3.8vw, 2.7rem);
      font-weight: 800;
      line-height: 1.15;
      margin-bottom: 0.4rem;
      color: #fff;
    }
    .hero-meta p {
      color: var(--text-muted);
      font-size: 0.95rem;
      display: flex;
      align-items: center;
      gap: 0.6rem;
    }
    .hero-badges-row {
      display: flex;
      gap: 0.75rem;
      flex-wrap: wrap;
    }
    .stat-badge-chip {
      background: rgba(18, 24, 38, 0.9);
      border: 1px solid var(--border-color);
      padding: 0.5rem 1rem;
      border-radius: var(--radius-sm);
      display: flex;
      flex-direction: column;
      min-width: 110px;
    }
    .stat-badge-chip span:first-child {
      font-size: 0.75rem;
      color: var(--text-muted);
    }
    .stat-badge-chip span:last-child {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--cyan);
    }
    .hero-intro-text {
      padding: 1.5rem 2.5rem 2.5rem;
      max-width: 980px;
      font-size: 1.05rem;
      color: #cbd5e1;
      line-height: 1.8;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
    }
    .hero-actions-line {
      display: flex;
      gap: 1rem;
      margin-top: 1.5rem;
      flex-wrap: wrap;
    }

    /* 板块 2: 倒计时 / 算力峰值调度演练 */
    .countdown-section {
      background: linear-gradient(180deg, rgba(16, 24, 40, 0.6) 0%, rgba(11, 15, 25, 0.9) 100%);
      border-bottom: 1px solid var(--border-color);
      padding: 3.5rem 0;
    }
    .countdown-box {
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid var(--border-accent);
      border-radius: var(--radius-md);
      padding: 2rem;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 2rem;
      box-shadow: inset 0 0 30px rgba(0, 240, 255, 0.05);
    }
    .timer-units {
      display: flex;
      gap: 1rem;
    }
    .time-slot {
      background: #0f1626;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 0.8rem 1.2rem;
      min-width: 80px;
      text-align: center;
    }
    .time-num {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--cyan);
      line-height: 1;
      font-family: monospace;
    }
    .time-lbl {
      font-size: 0.75rem;
      color: var(--text-muted);
      margin-top: 0.35rem;
    }

    /* 板块 3: 行业痛点与技术破局 */
    .grid-4 {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 1.5rem;
    }
    .pain-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 1.8rem;
      transition: var(--transition);
      position: relative;
    }
    .pain-card:hover {
      border-color: var(--border-accent);
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .pain-icon {
      font-size: 1.6rem;
      color: #f87171;
      margin-bottom: 1.2rem;
    }
    .solution-tag {
      display: inline-block;
      font-size: 0.75rem;
      padding: 0.2rem 0.6rem;
      background: rgba(16, 185, 129, 0.15);
      color: var(--emerald);
      border-radius: 4px;
      font-weight: 600;
      margin-bottom: 0.8rem;
    }
    .pain-card h3 {
      font-size: 1.15rem;
      margin-bottom: 0.6rem;
      color: #fff;
    }
    .pain-card p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块 4: 品牌与体系架构（左右非对称双栏） */
    .two-col-layout {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 3rem;
      align-items: center;
    }
    .spec-table {
      width: 100%;
      border-collapse: collapse;
      margin-top: 1.5rem;
    }
    .spec-table th, .spec-table td {
      padding: 0.8rem 1rem;
      text-align: left;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 0.9rem;
    }
    .spec-table th {
      color: var(--text-muted);
      font-weight: 500;
      background: rgba(255, 255, 255, 0.02);
    }
    .spec-table td {
      color: #e2e8f0;
      font-weight: 600;
    }
    .arch-preview-card {
      background: #111726;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      position: relative;
    }
    .arch-preview-card img {
      width: 100%;
      height: 380px;
      object-fit: cover;
      filter: saturate(1.1);
    }
    .card-caption {
      padding: 1.2rem;
      background: rgba(15, 23, 42, 0.9);
      border-top: 1px solid var(--border-color);
    }

    /* 板块 5: 核心优势集群（6张微拟物卡片） */
    .grid-6 {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
      gap: 1.5rem;
    }
    .feature-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 2rem;
      transition: var(--transition);
      box-shadow: var(--shadow-card);
    }
    .feature-card:hover {
      transform: translateY(-5px);
      border-color: var(--border-accent);
      background: var(--bg-card-hover);
      box-shadow: var(--shadow-hover);
    }
    .feature-icon-wrapper {
      width: 48px;
      height: 48px;
      background: rgba(0, 240, 255, 0.1);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--cyan);
      font-size: 1.25rem;
      margin-bottom: 1.2rem;
      border: 1px solid rgba(0, 240, 255, 0.2);
    }
    .feature-card h3 {
      font-size: 1.2rem;
      margin-bottom: 0.7rem;
      color: #fff;
    }
    .feature-card p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 板块 6: 纵向高权重产品矩阵对比 */
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 2rem;
    }
    .product-tier-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 2.5rem 2rem;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
      position: relative;
    }
    .product-tier-card.featured {
      border-color: var(--cyan);
      background: linear-gradient(180deg, rgba(0, 240, 255, 0.08) 0%, rgba(18, 24, 38, 0.9) 100%);
      box-shadow: 0 10px 40px -10px rgba(0, 240, 255, 0.25);
    }
    .tier-badge {
      position: absolute;
      top: -12px;
      right: 24px;
      background: linear-gradient(90deg, var(--cyan), #0099ff);
      color: #040914;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 0.2rem 0.8rem;
      border-radius: 9999px;
    }
    .product-tier-card h3 {
      font-size: 1.4rem;
      margin-bottom: 0.5rem;
    }
    .tier-subtitle {
      color: var(--text-muted);
      font-size: 0.9rem;
      margin-bottom: 1.5rem;
      min-height: 48px;
    }
    .tier-price {
      font-size: 2rem;
      font-weight: 800;
      color: var(--cyan);
      margin-bottom: 1.5rem;
      display: flex;
      align-items: baseline;
      gap: 0.3rem;
    }
    .tier-price span {
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: normal;
    }
    .tier-features {
      list-style: none;
      margin-bottom: 2rem;
      flex-grow: 1;
    }
    .tier-features li {
      padding: 0.55rem 0;
      font-size: 0.9rem;
      color: #cbd5e1;
      display: flex;
      align-items: center;
      gap: 0.6rem;
    }
    .tier-features li i {
      color: var(--emerald);
      font-size: 0.85rem;
    }

    /* 板块 7: 全景深色技术底座 (Dark Tech Engine) */
    .dark-engine-section {
      background: #060911;
      border-top: 1px solid rgba(0, 240, 255, 0.15);
      border-bottom: 1px solid rgba(0, 240, 255, 0.15);
      position: relative;
    }
    .engine-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 2rem;
    }
    .engine-box {
      border-left: 3px solid var(--cyan);
      padding: 0.5rem 0 0.5rem 1.5rem;
    }
    .engine-box h4 {
      font-size: 1.15rem;
      color: #fff;
      margin-bottom: 0.5rem;
    }
    .engine-box p {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    /* 板块 8: 落地故事与实践图文 */
    .story-item {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 3rem;
      align-items: center;
      margin-bottom: 4rem;
    }
    .story-item:last-child {
      margin-bottom: 0;
    }
    .story-item.reverse {
      grid-template-columns: 1fr 1fr;
      direction: rtl;
    }
    .story-item.reverse .story-content {
      direction: ltr;
    }
    .story-item.reverse .story-thumb {
      direction: ltr;
    }
    .story-thumb {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: 0 15px 30px rgba(0, 0, 0, 0.5);
    }
    .story-thumb img {
      width: 100%;
      height: 320px;
      object-fit: cover;
      transition: var(--transition);
    }
    .story-thumb:hover img {
      transform: scale(1.03);
    }
    .story-content h3 {
      font-size: 1.45rem;
      margin-bottom: 1rem;
      color: #fff;
    }
    .story-content p {
      color: var(--text-muted);
      margin-bottom: 1.2rem;
      font-size: 0.95rem;
      line-height: 1.7;
    }

    /* 板块 9: 量化成果数据统计条 */
    .metrics-bar-section {
      background: radial-gradient(circle at center, rgba(123, 44, 191, 0.15) 0%, rgba(11, 15, 25, 1) 70%);
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
      padding: 3.5rem 0;
    }
    .metrics-wrapper {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 2rem;
      text-align: center;
    }
    .metric-cell .num {
      font-size: clamp(2.4rem, 4vw, 3.2rem);
      font-weight: 800;
      line-height: 1.1;
      font-family: monospace;
      background: linear-gradient(135deg, #fff 0%, var(--cyan) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .metric-cell .label {
      font-size: 0.95rem;
      color: #cbd5e1;
      margin-top: 0.5rem;
      font-weight: 500;
    }
    .metric-cell .sub {
      font-size: 0.8rem;
      color: var(--text-muted);
      margin-top: 0.2rem;
    }

    /* 板块 10: 客户评价与口碑墙 */
    .review-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 2rem;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .stars {
      color: #fbbf24;
      margin-bottom: 1rem;
      font-size: 0.9rem;
    }
    .review-quote {
      font-size: 0.95rem;
      color: #cbd5e1;
      line-height: 1.7;
      margin-bottom: 1.5rem;
      flex-grow: 1;
    }
    .reviewer {
      display: flex;
      align-items: center;
      gap: 0.8rem;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 1rem;
    }
    .rev-avatar-circle {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--purple);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: #fff;
    }
    .rev-info h5 {
      font-size: 0.95rem;
      color: #fff;
    }
    .rev-info p {
      font-size: 0.78rem;
      color: var(--text-muted);
    }

    /* 板块 11: 技术资讯与动态速递 */
    .news-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .news-card:hover {
      border-color: var(--border-accent);
      transform: translateY(-4px);
    }
    .news-card img {
      width: 100%;
      height: 200px;
      object-fit: cover;
    }
    .news-body {
      padding: 1.5rem;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .news-meta {
      font-size: 0.8rem;
      color: var(--cyan);
      margin-bottom: 0.5rem;
      display: flex;
      justify-content: space-between;
    }
    .news-body h4 {
      font-size: 1.1rem;
      color: #fff;
      margin-bottom: 0.6rem;
      line-height: 1.4;
    }
    .news-body p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 1rem;
      flex-grow: 1;
    }
    .news-link {
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--cyan);
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
    }

    /* 板块 12: FAQ 交互手风琴面板 */
    .faq-list {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 1rem;
    }
    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-item[open] {
      border-color: var(--border-accent);
      background: rgba(22, 30, 48, 0.95);
    }
    .faq-question {
      padding: 1.25rem 1.5rem;
      font-size: 1.05rem;
      font-weight: 600;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      color: #fff;
      list-style: none;
      user-select: none;
    }
    .faq-question::-webkit-details-marker {
      display: none;
    }
    .faq-icon-arrow {
      color: var(--cyan);
      transition: transform 0.3s ease;
    }
    .faq-item[open] .faq-icon-arrow {
      transform: rotate(180deg);
    }
    .faq-answer {
      padding: 0 1.5rem 1.5rem;
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.7;
    }

    /* 板块 13: 底线行动召唤收口区 */
    .cta-card {
      background: linear-gradient(135deg, rgba(16, 24, 40, 0.95) 0%, rgba(123, 44, 191, 0.25) 100%);
      border: 1px solid var(--border-accent);
      border-radius: var(--radius-lg);
      padding: 3.5rem 2.5rem;
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 3rem;
      align-items: center;
      box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
    }
    .cta-form {
      background: rgba(11, 15, 25, 0.7);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 1.8rem;
    }
    .form-group {
      margin-bottom: 1rem;
    }
    .form-input {
      width: 100%;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border-color);
      padding: 0.75rem 1rem;
      border-radius: var(--radius-sm);
      color: #fff;
      font-size: 0.9rem;
      outline: none;
      transition: var(--transition);
    }
    .form-input:focus {
      border-color: var(--cyan);
      background: rgba(255, 255, 255, 0.08);
    }

    /* 统一页脚 */
    .site-footer {
      background: #070a12;
      border-top: 1px solid var(--border-color);
      padding: 4.5rem 0 2rem;
      color: var(--text-muted);
      font-size: 0.9rem;
    }
    .footer-top {
      display: grid;
      grid-template-columns: 1.5fr repeat(3, 1fr);
      gap: 2.5rem;
      margin-bottom: 3.5rem;
    }
    .footer-brand-title {
      font-size: 1.2rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 0.8rem;
    }
    .footer-desc {
      font-size: 0.88rem;
      line-height: 1.7;
      max-width: 320px;
    }
    .footer-col h5 {
      color: #fff;
      font-size: 1rem;
      margin-bottom: 1.2rem;
      font-weight: 600;
    }
    .footer-col ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 0.6rem;
    }
    .footer-col ul li a:hover {
      color: var(--cyan);
    }
    .footer-trust-strip {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 1.8rem 0;
      font-size: 0.85rem;
      gap: 1.5rem;
    }
    .trust-badges {
      display: flex;
      gap: 1.5rem;
      align-items: center;
    }
    .trust-item {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      color: #94a3b8;
    }
    .trust-item i {
      color: var(--cyan);
    }
    .copyright-line {
      text-align: center;
      font-size: 0.8rem;
      color: #64748b;
      padding-top: 1.5rem;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
    }

    /* 响应式断点适配 */
    @media (max-width: 1024px) {
      .two-col-layout,
      .cta-card {
        grid-template-columns: 1fr;
      }
      .footer-top {
        grid-template-columns: 1fr 1fr;
      }
      .story-item, .story-item.reverse {
        grid-template-columns: 1fr;
        direction: ltr !important;
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .nav-menu {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #0d1322;
        flex-direction: column;
        padding: 1.5rem;
        gap: 1rem;
        border-bottom: 1px solid var(--border-color);
      }
      .nav-menu.open {
        display: flex;
      }
      .menu-toggle {
        display: flex;
      }
      .hero-cover-bg {
        height: 240px;
      }
      .hero-profile-bar {
        margin-top: -50px;
        padding: 0 1.2rem 1.5rem;
      }
      .hero-avatar {
        width: 80px;
        height: 80px;
      }
      .hero-intro-text {
        padding: 1.2rem 1.2rem 2rem;
      }
      .footer-top {
        grid-template-columns: 1fr;
      }
      .grid-6, .grid-3 {
        grid-template-columns: 1fr;
      }
      .countdown-box {
        flex-direction: column;
        align-items: flex-start;
      }
    }

    @media (max-width: 480px) {
      .hero-identity {
        flex-direction: column;
        align-items: flex-start;
      }
      .timer-units {
        flex-wrap: wrap;
      }
      .time-slot {
        min-width: 65px;
      }
    }