/* roulang page: index */
:root {
      --primary: #0F241D;
      --primary-light: #16362C;
      --accent: #10B981;
      --accent-hover: #059669;
      --warning: #F59E0B;
      --danger: #EF4444;
      --bg-dark: #0A110E;
      --bg-light: #F8FAFB;
      --bg-card: #FFFFFF;
      --border-light: #E2E8F0;
      --border-dark: rgba(255, 255, 255, 0.08);
      --text-main: #0B1712;
      --text-body: #334155;
      --text-muted: #64748B;
      --text-white: #F8FAFC;
      --radius-sm: 6px;
      --radius-md: 8px;
      --radius-lg: 12px;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
      --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.05), 0 2px 4px -2px rgba(0,0,0,0.05);
      --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.04), 0 4px 6px -4px rgba(0,0,0,0.02);
      --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
      --font-sans: system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
      font-family: var(--font-sans);
      color: var(--text-body);
      background-color: var(--bg-light);
    }

    body {
      line-height: 1.65;
      font-size: 1rem;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.2s ease;
    }

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

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 1.25rem;
    }

    /* 顶部双行导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(8px);
      border-bottom: 1px solid var(--border-light);
    }

    .info-bar {
      background-color: var(--primary);
      color: var(--text-white);
      font-size: 0.75rem;
      padding: 0.35rem 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

    .info-bar-content {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
    }

    .status-pulse {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
    }

    .pulse-dot {
      width: 8px;
      height: 8px;
      background-color: var(--accent);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--accent);
    }

    .main-nav {
      padding: 0.85rem 0;
    }

    .nav-wrapper {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .nav-brand {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary);
    }

    .brand-icon {
      width: 28px;
      height: 28px;
      background: var(--primary);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent);
      font-weight: 800;
      font-size: 0.9rem;
    }

    .nav-menu {
      display: flex;
      align-items: center;
      gap: 1.5rem;
      list-style: none;
    }

    .nav-link {
      font-size: 0.9rem;
      font-weight: 500;
      color: var(--text-main);
    }

    .nav-link:hover, .nav-link.active {
      color: var(--accent);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 0.6rem 1.25rem;
      font-size: 0.9rem;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: all 0.2s ease;
      border: 1px solid transparent;
      gap: 0.5rem;
    }

    .btn-primary {
      background-color: var(--accent);
      color: #FFFFFF;
    }

    .btn-primary:hover {
      background-color: var(--accent-hover);
      box-shadow: 0 4px 12px rgba(16, 185, 129, 0.25);
    }

    .btn-outline-white {
      border-color: rgba(255, 255, 255, 0.3);
      color: var(--text-white);
      background: rgba(255, 255, 255, 0.05);
    }

    .btn-outline-white:hover {
      background: rgba(255, 255, 255, 0.15);
      border-color: #FFFFFF;
    }

    .btn-dark {
      background-color: var(--primary);
      color: #FFFFFF;
    }

    .btn-dark:hover {
      background-color: var(--primary-light);
    }

    .menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      cursor: pointer;
      color: var(--text-main);
    }

    /* 闪购倒计时条（硬性蓝图） */
    .flash-banner {
      background: linear-gradient(90deg, #0A110E 0%, #16362C 100%);
      color: var(--text-white);
      padding: 0.6rem 0;
      border-bottom: 1px solid var(--border-dark);
      font-size: 0.85rem;
    }

    .flash-wrapper {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 0.5rem;
    }

    .countdown-timer {
      font-family: var(--font-mono);
      color: var(--warning);
      font-weight: 700;
      margin-left: 0.3rem;
    }

    /* Hero：优惠券墙入口 + 主券面放大 */
    .hero-section {
      position: relative;
      background: url('/assets/images/250eedce2125374a.jpg') center/cover no-repeat;
      padding: 5rem 0 4.5rem;
      color: var(--text-white);
    }

    .hero-overlay {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: linear-gradient(135deg, rgba(10, 17, 14, 0.94) 0%, rgba(15, 36, 29, 0.88) 100%);
      z-index: 1;
    }

    .hero-container {
      position: relative;
      z-index: 2;
    }

    .hero-header {
      max-width: 800px;
      margin: 0 auto 3rem;
      text-align: center;
    }

    .hero-tag {
      display: inline-block;
      padding: 0.25rem 0.75rem;
      background: rgba(16, 185, 129, 0.2);
      border: 1px solid var(--accent);
      color: var(--accent);
      font-size: 0.8rem;
      font-weight: 600;
      border-radius: var(--radius-sm);
      margin-bottom: 1rem;
    }

    h1.hero-title {
      font-size: 2.75rem;
      line-height: 1.2;
      font-weight: 800;
      margin-bottom: 1.25rem;
      color: #FFFFFF;
      letter-spacing: -0.02em;
    }

    .hero-desc {
      font-size: 1.05rem;
      line-height: 1.7;
      color: #CBD5E1;
      margin-bottom: 2rem;
    }

    /* 蓝图：优惠券墙 */
    .coupon-wall {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 1.5rem;
      max-width: 1050px;
      margin: 0 auto;
    }

    .coupon-card {
      background: rgba(255, 255, 255, 0.05);
      border: 1px dashed rgba(255, 255, 255, 0.2);
      border-radius: var(--radius-md);
      padding: 1.5rem;
      position: relative;
      backdrop-filter: blur(4px);
      transition: transform 0.2s ease, border-color 0.2s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

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

    .coupon-card.featured {
      background: linear-gradient(145deg, rgba(16, 185, 129, 0.15) 0%, rgba(15, 36, 29, 0.4) 100%);
      border: 2px solid var(--accent);
      transform: scale(1.03);
    }

    .coupon-badge {
      position: absolute;
      top: -10px;
      right: 15px;
      background: var(--warning);
      color: #000;
      font-size: 0.7rem;
      font-weight: 800;
      padding: 0.15rem 0.5rem;
      border-radius: var(--radius-sm);
    }

    .coupon-amount {
      font-size: 2.25rem;
      font-weight: 800;
      color: var(--accent);
      font-family: var(--font-mono);
      line-height: 1;
      margin-bottom: 0.5rem;
    }

    .coupon-amount span {
      font-size: 1rem;
    }

    .coupon-title {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 0.35rem;
      color: #FFFFFF;
    }

    .coupon-note {
      font-size: 0.8rem;
      color: #94A3B8;
      margin-bottom: 1.25rem;
    }

    /* 板块通用布局 */
    .section-padding {
      padding: 5rem 0;
    }

    .section-title-wrap {
      text-align: center;
      max-width: 750px;
      margin: 0 auto 3rem;
    }

    .section-sub {
      color: var(--accent);
      font-size: 0.85rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.05em;
      margin-bottom: 0.5rem;
      display: block;
    }

    h2.section-heading {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 1rem;
    }

    .section-lead {
      color: var(--text-muted);
      font-size: 1rem;
      line-height: 1.7;
    }

    /* 板块1：痛点与破局 */
    .pain-points-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 1.5rem;
    }

    .pain-card {
      background: var(--bg-card);
      border-radius: var(--radius-md);
      padding: 1.75rem;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
      position: relative;
    }

    .pain-num {
      font-family: var(--font-mono);
      font-size: 1.5rem;
      font-weight: 800;
      color: #CBD5E1;
      margin-bottom: 0.75rem;
    }

    .pain-title {
      font-size: 1.15rem;
      color: var(--text-main);
      margin-bottom: 0.75rem;
      font-weight: 700;
    }

    .pain-desc {
      color: var(--text-muted);
      font-size: 0.9rem;
      line-height: 1.6;
    }

    .pain-solution {
      margin-top: 1rem;
      padding-top: 0.75rem;
      border-top: 1px dashed var(--border-light);
      font-size: 0.85rem;
      color: var(--accent);
      font-weight: 600;
    }

    /* 板块2：核心解决方案体系 */
    .bg-white {
      background-color: #FFFFFF;
    }

    .solution-band {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 3rem;
      align-items: center;
      margin-bottom: 3.5rem;
    }

    .solution-band:nth-child(even) {
      direction: rtl;
    }

    .solution-band:nth-child(even) .band-text {
      direction: ltr;
    }

    .band-img-wrap img {
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-md);
      width: 100%;
      height: 340px;
      object-fit: cover;
    }

    .band-tag {
      font-size: 0.8rem;
      color: var(--accent);
      font-weight: 700;
      margin-bottom: 0.5rem;
    }

    .band-title {
      font-size: 1.6rem;
      color: var(--text-main);
      margin-bottom: 1rem;
      font-weight: 700;
    }

    .band-desc {
      font-size: 0.95rem;
      color: var(--text-body);
      line-height: 1.7;
      margin-bottom: 1.25rem;
    }

    .band-points {
      list-style: none;
    }

    .band-points li {
      font-size: 0.9rem;
      color: var(--text-muted);
      margin-bottom: 0.5rem;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }

    .band-points li::before {
      content: "✔";
      color: var(--accent);
      font-weight: bold;
    }

    /* 板块3：架构优势 6卡网格 */
    .advantages-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 1.5rem;
    }

    .adv-card {
      background: var(--bg-card);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 1.75rem;
      transition: all 0.2s ease;
    }

    .adv-card:hover {
      border-color: var(--accent);
      box-shadow: var(--shadow-md);
    }

    .adv-icon-badge {
      width: 44px;
      height: 44px;
      border-radius: var(--radius-sm);
      background: rgba(16, 185, 129, 0.1);
      color: var(--accent);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.2rem;
      font-weight: bold;
      margin-bottom: 1.25rem;
    }

    .adv-card h3 {
      font-size: 1.15rem;
      color: var(--text-main);
      margin-bottom: 0.5rem;
    }

    .adv-card p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块4：深色数据拓扑与清洗理念 */
    .bg-dark-section {
      background-color: var(--bg-dark);
      color: var(--text-white);
    }

    .pipeline-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
      gap: 1.5rem;
      position: relative;
    }

    .pipeline-step {
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 1.75rem;
      position: relative;
    }

    .step-index {
      font-family: var(--font-mono);
      font-size: 0.85rem;
      color: var(--accent);
      font-weight: 700;
      margin-bottom: 0.75rem;
      display: block;
    }

    .pipeline-step h3 {
      font-size: 1.1rem;
      color: var(--text-white);
      margin-bottom: 0.5rem;
    }

    .pipeline-step p {
      font-size: 0.85rem;
      color: #94A3B8;
      line-height: 1.6;
    }

    /* 板块5：业务场景落地 */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 2rem;
    }

    .scenario-card {
      background: var(--bg-card);
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
    }

    .scenario-card img {
      width: 100%;
      height: 200px;
      object-fit: cover;
    }

    .scenario-content {
      padding: 1.5rem;
    }

    .scenario-content h3 {
      font-size: 1.15rem;
      color: var(--text-main);
      margin-bottom: 0.75rem;
    }

    .scenario-content p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 1rem;
    }

    .scenario-metric {
      font-size: 0.85rem;
      background: var(--bg-light);
      padding: 0.5rem 0.75rem;
      border-radius: var(--radius-sm);
      color: var(--primary);
      font-weight: 600;
    }

    /* 板块6：关键数据指标条 */
    .metrics-bar {
      background: var(--primary);
      color: var(--text-white);
      padding: 3.5rem 0;
    }

    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 2rem;
      text-align: center;
    }

    .metric-value {
      font-family: var(--font-mono);
      font-size: 2.75rem;
      font-weight: 800;
      color: var(--accent);
      line-height: 1;
      margin-bottom: 0.5rem;
    }

    .metric-label {
      font-size: 0.95rem;
      color: #94A3B8;
    }

    /* 板块7：社会认同机构评价 */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 1.5rem;
    }

    .testimonial-card {
      background: var(--bg-card);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 1.75rem;
      box-shadow: var(--shadow-sm);
    }

    .stars {
      color: var(--warning);
      font-size: 1rem;
      margin-bottom: 1rem;
      letter-spacing: 2px;
    }

    .quote-text {
      font-size: 0.95rem;
      color: var(--text-body);
      line-height: 1.7;
      margin-bottom: 1.25rem;
      font-style: italic;
    }

    .reviewer-meta {
      display: flex;
      align-items: center;
      gap: 0.75rem;
    }

    .reviewer-avatar {
      width: 40px;
      height: 40px;
      background: #E2E8F0;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      color: var(--primary);
    }

    .reviewer-info h4 {
      font-size: 0.95rem;
      color: var(--text-main);
    }

    .reviewer-info span {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* 板块8：传统模式 vs 实时多币种对比 */
    .comparison-table-wrap {
      background: var(--bg-card);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-light);
      overflow-x: auto;
      box-shadow: var(--shadow-sm);
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }

    .compare-table th, .compare-table td {
      padding: 1.2rem 1.5rem;
      border-bottom: 1px solid var(--border-light);
      font-size: 0.95rem;
    }

    .compare-table th {
      background: var(--bg-light);
      font-weight: 700;
      color: var(--text-main);
    }

    .compare-table td.dimmed {
      color: var(--text-muted);
      background: #FAFAFA;
    }

    .compare-table td.highlight {
      color: var(--primary);
      font-weight: 600;
      background: rgba(16, 185, 129, 0.05);
    }

    /* 板块9：资讯证据与异动简讯 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 1.5rem;
    }

    .news-card {
      background: var(--bg-card);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 1.5rem;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .news-date {
      font-size: 0.8rem;
      color: var(--text-muted);
      margin-bottom: 0.5rem;
      font-family: var(--font-mono);
    }

    .news-card h3 {
      font-size: 1.05rem;
      color: var(--text-main);
      margin-bottom: 0.75rem;
      line-height: 1.4;
    }

    .news-card p {
      font-size: 0.85rem;
      color: var(--text-body);
      line-height: 1.6;
      margin-bottom: 1rem;
    }

    /* 板块10：产品规格矩阵与对比 */
    .packages-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 1.5rem;
    }

    .package-card {
      background: var(--bg-card);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 2.25rem 1.75rem;
      text-align: center;
      position: relative;
    }

    .package-card.recommended {
      border: 2px solid var(--accent);
      box-shadow: var(--shadow-lg);
    }

    .pkg-ribbon {
      position: absolute;
      top: 15px;
      right: 15px;
      background: var(--accent);
      color: #FFFFFF;
      font-size: 0.7rem;
      font-weight: 700;
      padding: 0.2rem 0.5rem;
      border-radius: var(--radius-sm);
    }

    .pkg-title {
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 0.5rem;
    }

    .pkg-price {
      font-size: 2rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 1rem;
      font-family: var(--font-mono);
    }

    .pkg-features {
      list-style: none;
      text-align: left;
      margin: 1.5rem 0 2rem;
      border-top: 1px solid var(--border-light);
      padding-top: 1.5rem;
    }

    .pkg-features li {
      font-size: 0.9rem;
      color: var(--text-body);
      margin-bottom: 0.75rem;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }

    .pkg-features li::before {
      content: "•";
      color: var(--accent);
      font-size: 1.2rem;
    }

    /* 板块11：异议拆解 FAQ */
    .faq-container {
      max-width: 800px;
      margin: 0 auto;
    }

    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-sm);
      margin-bottom: 0.75rem;
      overflow: hidden;
    }

    .faq-question {
      padding: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      user-select: none;
    }

    .faq-answer {
      padding: 0 1.25rem 1.25rem;
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.7;
      display: none;
    }

    .faq-item.active .faq-answer {
      display: block;
    }

    /* 板块12：安全与标准保障条 */
    .trust-strip {
      background: #FFFFFF;
      border-top: 1px solid var(--border-light);
      border-bottom: 1px solid var(--border-light);
      padding: 2.5rem 0;
    }

    .trust-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 2rem;
      text-align: center;
    }

    .trust-item h4 {
      font-size: 1rem;
      color: var(--text-main);
      margin-bottom: 0.35rem;
    }

    .trust-item p {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* 板块13：转化表单 */
    .cta-box-section {
      background: linear-gradient(135deg, #0F241D 0%, #0A110E 100%);
      color: var(--text-white);
      padding: 5rem 0;
    }

    .form-container {
      max-width: 600px;
      margin: 0 auto;
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 2.5rem;
      backdrop-filter: blur(10px);
    }

    .form-group {
      margin-bottom: 1.25rem;
    }

    .form-label {
      display: block;
      font-size: 0.85rem;
      margin-bottom: 0.5rem;
      color: #CBD5E1;
    }

    .form-input {
      width: 100%;
      padding: 0.75rem 1rem;
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-sm);
      color: #FFFFFF;
      font-size: 0.95rem;
    }

    .form-input:focus {
      outline: none;
      border-color: var(--accent);
      background: rgba(255, 255, 255, 0.12);
    }

    .form-checkbox-group {
      display: flex;
      gap: 1rem;
      flex-wrap: wrap;
    }

    .checkbox-item {
      display: flex;
      align-items: center;
      gap: 0.35rem;
      font-size: 0.85rem;
      color: #CBD5E1;
    }

    /* 页脚 */
    .site-footer {
      background: #050B08;
      color: #94A3B8;
      padding: 4.5rem 0 2rem;
      border-top: 1px solid var(--border-dark);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 2fr;
      gap: 3rem;
      margin-bottom: 3.5rem;
    }

    .footer-brand h3 {
      color: var(--text-white);
      font-size: 1.2rem;
      margin-bottom: 1rem;
    }

    .footer-desc {
      font-size: 0.85rem;
      line-height: 1.7;
      margin-bottom: 1.5rem;
    }

    .footer-col h4 {
      color: var(--text-white);
      font-size: 0.95rem;
      margin-bottom: 1.2rem;
      font-weight: 600;
    }

    .footer-links {
      list-style: none;
    }

    .footer-links li {
      margin-bottom: 0.6rem;
    }

    .footer-links a {
      font-size: 0.85rem;
      color: #94A3B8;
    }

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

    .footer-contact p {
      font-size: 0.85rem;
      margin-bottom: 0.5rem;
      line-height: 1.6;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 1.5rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 1rem;
      font-size: 0.8rem;
    }

    /* 移动端常驻底部转化条 */
    .mobile-sticky-bar {
      display: none;
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      background: var(--bg-dark);
      padding: 0.75rem 1rem;
      border-top: 1px solid var(--border-dark);
      z-index: 999;
      justify-content: space-between;
      align-items: center;
      box-shadow: 0 -4px 10px rgba(0,0,0,0.2);
    }

    .sticky-bar-info {
      color: var(--text-white);
      font-size: 0.8rem;
    }

    .sticky-bar-info span {
      display: block;
      color: var(--accent);
      font-weight: 700;
      font-family: var(--font-mono);
    }

    /* 响应式样式 */
    @media (max-width: 1024px) {
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      h1.hero-title {
        font-size: 2.1rem;
      }
      .nav-menu {
        display: none;
      }
      .menu-toggle {
        display: block;
      }
      .solution-band {
        grid-template-columns: 1fr;
        gap: 1.5rem;
      }
      .solution-band:nth-child(even) {
        direction: ltr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
      }
      .mobile-sticky-bar {
        display: flex;
      }
      body {
        padding-bottom: 60px;
      }
    }