/* roulang page: index */
:root {
      --primary: #FF5500;
      --primary-hover: #E04B00;
      --primary-light: #FFF0E6;
      --secondary: #12161A;
      --secondary-light: #1E242B;
      --accent: #00C896;
      --bg: #F8FAFC;
      --surface: #FFFFFF;
      --text: #0F172A;
      --text-muted: #475569;
      --text-subtle: #94A3B8;
      --border: #E2E8F0;
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --radius-pill: 9999px;
      --shadow-sm: 0 2px 8px rgba(18, 22, 26, 0.04);
      --shadow-md: 0 10px 25px -5px rgba(18, 22, 26, 0.08);
      --shadow-lg: 0 20px 35px -10px rgba(18, 22, 26, 0.12);
      --container-max: 1240px;
      --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }
    *, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
      font-size: 16px;
      background-color: var(--bg);
      color: var(--text);
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.6;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition);
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    button, input {
      font-family: inherit;
    }
    .container {
      width: 100%;
      max-width: var(--container-max);
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }
    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 14px;
      font-size: 0.8125rem;
      font-weight: 600;
      border-radius: var(--radius-pill);
      background-color: var(--primary-light);
      color: var(--primary);
    }
    .badge-accent {
      background-color: rgba(0, 200, 150, 0.12);
      color: var(--accent);
    }
    .badge-dark {
      background-color: rgba(255, 255, 255, 0.15);
      color: #FFFFFF;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      height: 48px;
      padding: 0 28px;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: var(--radius-md);
      border: 1px solid transparent;
      cursor: pointer;
      transition: var(--transition);
      white-space: nowrap;
    }
    .btn-primary {
      background-color: var(--primary);
      color: #FFFFFF;
      box-shadow: 0 4px 14px rgba(255, 85, 0, 0.35);
    }
    .btn-primary:hover {
      background-color: var(--primary-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(255, 85, 0, 0.45);
    }
    .btn-outline {
      background-color: transparent;
      border-color: var(--border);
      color: var(--text);
    }
    .btn-outline:hover {
      background-color: var(--surface);
      border-color: var(--primary);
      color: var(--primary);
      transform: translateY(-2px);
    }
    .btn-light {
      background-color: #FFFFFF;
      color: var(--secondary);
    }
    .btn-light:hover {
      background-color: #F1F5F9;
      transform: translateY(-2px);
    }
    .section {
      padding: 88px 0;
      position: relative;
    }
    .section-light {
      background-color: var(--bg);
    }
    .section-surface {
      background-color: var(--surface);
    }
    .section-dark {
      background-color: var(--secondary);
      color: #FFFFFF;
    }
    .section-header {
      margin-bottom: 56px;
    }
    .section-header.text-center {
      text-align: center;
      max-width: 760px;
      margin-left: auto;
      margin-right: auto;
    }
    .section-title {
      font-size: 2.25rem;
      font-weight: 800;
      line-height: 1.25;
      margin-top: 14px;
      margin-bottom: 16px;
      color: inherit;
      letter-spacing: -0.02em;
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.7;
    }
    .section-dark .section-desc {
      color: #94A3B8;
    }

    /* 顶部导航 */
    .top-bar {
      background-color: var(--secondary);
      color: #94A3B8;
      font-size: 0.8125rem;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      padding: 8px 0;
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .top-bar-contact {
      display: flex;
      gap: 24px;
    }
    .navbar {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border);
      height: 76px;
      display: flex;
      align-items: center;
    }
    .navbar-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--secondary);
      letter-spacing: -0.03em;
    }
    .brand-logo-mark {
      width: 38px;
      height: 38px;
      background: linear-gradient(135deg, var(--primary) 0%, #FF8533 100%);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #FFFFFF;
      font-weight: 900;
      font-size: 1.1rem;
      box-shadow: 0 4px 10px rgba(255, 85, 0, 0.3);
    }
    .nav-menu {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 32px;
    }
    .nav-link {
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-muted);
      position: relative;
      padding: 6px 0;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--primary);
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
      color: var(--secondary);
    }

    /* Hero: 卡片堆叠架构 */
    .hero {
      padding: 70px 0 90px;
      background: radial-gradient(circle at 80% 20%, rgba(255, 85, 0, 0.08) 0%, transparent 50%),
                  radial-gradient(circle at 10% 80%, rgba(0, 200, 150, 0.05) 0%, transparent 40%),
                  var(--bg);
      overflow: hidden;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 48px;
      align-items: center;
    }
    .hero-content {
      max-width: 620px;
    }
    .hero-title {
      font-size: 3.1rem;
      font-weight: 900;
      line-height: 1.18;
      margin-top: 18px;
      margin-bottom: 22px;
      letter-spacing: -0.03em;
      color: var(--secondary);
    }
    .hero-title span {
      color: var(--primary);
      position: relative;
      display: inline-block;
    }
    .hero-description {
      font-size: 1.125rem;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 34px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 40px;
    }
    .hero-trust {
      display: flex;
      align-items: center;
      gap: 16px;
      padding-top: 24px;
      border-top: 1px solid rgba(0, 0, 0, 0.06);
    }
    .trust-avatars {
      display: flex;
    }
    .trust-avatar {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      border: 2px solid #FFFFFF;
      margin-left: -10px;
      background-color: #E2E8F0;
      overflow: hidden;
    }
    .trust-avatar:first-child {
      margin-left: 0;
    }
    .trust-text {
      font-size: 0.875rem;
      color: var(--text-muted);
      font-weight: 500;
    }
    .trust-text strong {
      color: var(--secondary);
      font-weight: 700;
    }

    /* 堆叠卡片舞台视觉 */
    .hero-stack-stage {
      position: relative;
      height: 520px;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .stack-card {
      position: absolute;
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-lg);
      transition: var(--transition);
      border: 1px solid rgba(226, 232, 240, 0.8);
      overflow: hidden;
    }
    .stack-card-main {
      width: 390px;
      z-index: 3;
      transform: translateY(0) scale(1);
    }
    .stack-card-left {
      width: 310px;
      z-index: 2;
      left: 0;
      bottom: 20px;
      transform: rotate(-5deg) translateY(-10px);
      opacity: 0.95;
    }
    .stack-card-right {
      width: 310px;
      z-index: 1;
      right: 0;
      top: 20px;
      transform: rotate(6deg) translateY(-15px);
      opacity: 0.92;
    }
    .stack-card-main:hover {
      transform: translateY(-8px) scale(1.02);
    }
    .stack-card-left:hover {
      transform: rotate(-2deg) translateY(-20px);
      z-index: 4;
    }
    .stack-card-right:hover {
      transform: rotate(2deg) translateY(-25px);
      z-index: 4;
    }
    .card-preview-thumb {
      height: 180px;
      overflow: hidden;
      position: relative;
    }
    .card-preview-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .card-preview-body {
      padding: 22px;
    }
    .metric-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-top: 14px;
      padding-top: 14px;
      border-top: 1px solid #F1F5F9;
    }
    .metric-item-num {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--secondary);
    }
    .metric-item-num.accent {
      color: var(--accent);
    }
    .metric-item-num.primary {
      color: var(--primary);
    }
    .metric-item-label {
      font-size: 0.75rem;
      color: var(--text-subtle);
    }

    /* 优惠券墙 */
    .coupon-wall-section {
      background: linear-gradient(180deg, var(--bg) 0%, #FFFFFF 100%);
      padding: 60px 0 80px;
    }
    .coupon-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-top: 36px;
    }
    .coupon-card {
      background: #FFFFFF;
      border: 1px dashed var(--primary);
      border-radius: var(--radius-md);
      position: relative;
      display: flex;
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .coupon-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 12px 28px rgba(255, 85, 0, 0.12);
    }
    .coupon-left {
      background: var(--primary-light);
      padding: 24px 20px;
      width: 40%;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      border-right: 1px dashed rgba(255, 85, 0, 0.4);
      position: relative;
    }
    .coupon-val {
      font-size: 2.25rem;
      font-weight: 900;
      color: var(--primary);
      line-height: 1;
    }
    .coupon-unit {
      font-size: 1rem;
      margin-right: 2px;
    }
    .coupon-condition {
      font-size: 0.75rem;
      color: var(--primary-hover);
      margin-top: 8px;
      text-align: center;
      font-weight: 600;
    }
    .coupon-right {
      padding: 20px;
      width: 60%;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .coupon-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--secondary);
      margin-bottom: 6px;
    }
    .coupon-desc {
      font-size: 0.8125rem;
      color: var(--text-muted);
      line-height: 1.5;
      margin-bottom: 12px;
    }
    .coupon-rule {
      font-size: 0.725rem;
      color: var(--text-subtle);
    }
    .coupon-claim-btn {
      align-self: flex-start;
      padding: 6px 16px;
      font-size: 0.8125rem;
      border-radius: var(--radius-pill);
      background-color: var(--primary);
      color: #FFFFFF;
      font-weight: 600;
      border: none;
      cursor: pointer;
      transition: var(--transition);
    }
    .coupon-claim-btn:hover {
      background-color: var(--primary-hover);
    }

    /* 适用人群 & 谁适合/谁不适合 */
    .matrix-split-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }
    .matrix-box {
      border-radius: var(--radius-lg);
      padding: 40px;
      background: #FFFFFF;
      border: 1px solid var(--border);
    }
    .matrix-box.suitable {
      border-top: 6px solid var(--accent);
      background: linear-gradient(180deg, rgba(0, 200, 150, 0.02) 0%, #FFFFFF 100%);
    }
    .matrix-box.unsuitable {
      border-top: 6px solid #94A3B8;
      background: linear-gradient(180deg, rgba(148, 163, 184, 0.03) 0%, #FFFFFF 100%);
    }
    .matrix-list {
      list-style: none;
      margin-top: 24px;
      display: flex;
      flex-direction: column;
      gap: 18px;
    }
    .matrix-list-item {
      display: flex;
      align-items: flex-start;
      gap: 14px;
    }
    .matrix-icon-mark {
      width: 24px;
      height: 24px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.75rem;
      font-weight: bold;
      flex-shrink: 0;
      margin-top: 2px;
    }
    .matrix-box.suitable .matrix-icon-mark {
      background-color: rgba(0, 200, 150, 0.15);
      color: var(--accent);
    }
    .matrix-box.unsuitable .matrix-icon-mark {
      background-color: rgba(148, 163, 184, 0.2);
      color: #64748B;
    }
    .matrix-text-title {
      font-weight: 700;
      font-size: 1rem;
      color: var(--secondary);
      margin-bottom: 2px;
    }
    .matrix-text-desc {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.55;
    }

    /* 卖点三连 */
    .trio-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .trio-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 36px 30px;
      border: 1px solid var(--border);
      transition: var(--transition);
      box-shadow: var(--shadow-sm);
    }
    .trio-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-md);
      border-color: rgba(255, 85, 0, 0.4);
    }
    .trio-icon {
      width: 58px;
      height: 58px;
      border-radius: var(--radius-md);
      background-color: var(--primary-light);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 1.5rem;
      font-weight: 800;
      margin-bottom: 22px;
    }
    .trio-title {
      font-size: 1.25rem;
      font-weight: 800;
      margin-bottom: 12px;
      color: var(--secondary);
    }
    .trio-desc {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 匹配方案对比 */
    .plans-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
      align-items: stretch;
    }
    .plan-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 40px 32px;
      border: 1px solid var(--border);
      display: flex;
      flex-direction: column;
      position: relative;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .plan-card.featured {
      border: 2px solid var(--primary);
      box-shadow: 0 16px 36px rgba(255, 85, 0, 0.12);
      transform: scale(1.02);
    }
    .plan-badge-flag {
      position: absolute;
      top: -14px;
      right: 32px;
      background: var(--primary);
      color: #FFFFFF;
      padding: 4px 14px;
      font-size: 0.75rem;
      font-weight: 700;
      border-radius: var(--radius-pill);
      letter-spacing: 0.05em;
    }
    .plan-name {
      font-size: 1.4rem;
      font-weight: 800;
      color: var(--secondary);
      margin-bottom: 8px;
    }
    .plan-summary {
      font-size: 0.875rem;
      color: var(--text-muted);
      margin-bottom: 22px;
      min-height: 42px;
    }
    .plan-highlight-list {
      list-style: none;
      margin: 24px 0 36px;
      display: flex;
      flex-direction: column;
      gap: 14px;
      flex-grow: 1;
    }
    .plan-highlight-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.9rem;
      color: var(--text);
    }
    .plan-check {
      color: var(--accent);
      font-weight: bold;
    }

    /* 场景演示板块 */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .scenario-item {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .scenario-item:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .scenario-thumb {
      height: 220px;
      width: 100%;
      overflow: hidden;
      position: relative;
    }
    .scenario-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .scenario-item:hover .scenario-thumb img {
      transform: scale(1.05);
    }
    .scenario-content {
      padding: 24px;
    }
    .scenario-title {
      font-size: 1.15rem;
      font-weight: 800;
      color: var(--secondary);
      margin-bottom: 10px;
    }
    .scenario-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 数据与指标条 */
    .stats-bar {
      background: var(--secondary);
      padding: 64px 0;
      color: #FFFFFF;
    }
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
      text-align: center;
    }
    .stat-number {
      font-size: 3rem;
      font-weight: 900;
      color: var(--primary);
      line-height: 1;
      margin-bottom: 10px;
      font-feature-settings: "tnum";
    }
    .stat-label {
      font-size: 1rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 6px;
    }
    .stat-sub {
      font-size: 0.8125rem;
      color: #94A3B8;
    }

    /* 社会认同与评价 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .review-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 30px;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .review-stars {
      color: #FFB800;
      font-size: 0.9rem;
      margin-bottom: 14px;
      letter-spacing: 2px;
    }
    .review-body {
      font-size: 0.925rem;
      color: var(--text);
      line-height: 1.65;
      margin-bottom: 20px;
      font-style: italic;
    }
    .review-user {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #F1F5F9;
      padding-top: 16px;
    }
    .review-avatar-mock {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #E2E8F0;
      color: var(--secondary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.9rem;
    }
    .review-user-name {
      font-weight: 700;
      font-size: 0.95rem;
      color: var(--secondary);
    }
    .review-user-info {
      font-size: 0.8rem;
      color: var(--text-subtle);
    }

    /* 资讯与知识库 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .news-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .news-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .news-thumb {
      height: 200px;
      position: relative;
    }
    .news-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .news-body {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .news-tag {
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--primary);
      text-transform: uppercase;
      margin-bottom: 8px;
      display: block;
    }
    .news-title {
      font-size: 1.15rem;
      font-weight: 800;
      color: var(--secondary);
      line-height: 1.4;
      margin-bottom: 12px;
    }
    .news-summary {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }
    .news-meta {
      font-size: 0.8rem;
      color: var(--text-subtle);
    }

    /* 保障说明条 */
    .guarantee-bar {
      background: #F1F5F9;
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
      padding: 42px 0;
    }
    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .guarantee-item {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .guarantee-icon-box {
      width: 48px;
      height: 48px;
      border-radius: var(--radius-md);
      background: #FFFFFF;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent);
      font-size: 1.25rem;
      font-weight: 900;
      box-shadow: var(--shadow-sm);
      flex-shrink: 0;
    }
    .guarantee-title {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--secondary);
      margin-bottom: 2px;
    }
    .guarantee-desc {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* 常见异议与解答 */
    .faq-list {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-question {
      padding: 22px 28px;
      font-weight: 700;
      font-size: 1.05rem;
      color: var(--secondary);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .faq-toggle-icon {
      font-size: 1.25rem;
      transition: transform 0.25s ease;
      color: var(--primary);
      font-weight: 600;
    }
    .faq-item.active .faq-toggle-icon {
      transform: rotate(45deg);
    }
    .faq-answer {
      padding: 0 28px 24px;
      font-size: 0.925rem;
      color: var(--text-muted);
      line-height: 1.7;
      display: none;
      border-top: 1px solid #F8FAFC;
    }
    .faq-item.active .faq-answer {
      display: block;
    }

    /* 底部收口行动区 */
    .cta-banner {
      background: linear-gradient(135deg, #12161A 0%, #1E252D 100%);
      border-radius: var(--radius-lg);
      padding: 64px 48px;
      position: relative;
      overflow: hidden;
      color: #FFFFFF;
      text-align: center;
      box-shadow: var(--shadow-lg);
      border: 1px solid rgba(255, 255, 255, 0.08);
    }
    .cta-banner::before {
      content: "";
      position: absolute;
      top: -100px;
      right: -100px;
      width: 320px;
      height: 320px;
      background: radial-gradient(circle, rgba(255, 85, 0, 0.25) 0%, transparent 70%);
      pointer-events: none;
    }
    .cta-form {
      max-width: 520px;
      margin: 36px auto 16px;
      display: flex;
      gap: 12px;
    }
    .cta-input {
      flex-grow: 1;
      height: 52px;
      border-radius: var(--radius-md);
      border: 1px solid rgba(255, 255, 255, 0.2);
      background: rgba(255, 255, 255, 0.08);
      padding: 0 20px;
      font-size: 1rem;
      color: #FFFFFF;
      outline: none;
      transition: var(--transition);
    }
    .cta-input::placeholder {
      color: #94A3B8;
    }
    .cta-input:focus {
      border-color: var(--primary);
      background: rgba(255, 255, 255, 0.12);
    }
    .cta-note {
      font-size: 0.785rem;
      color: #94A3B8;
    }

    /* 固定底部转化条 */
    .fixed-action-bar {
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      background: rgba(18, 22, 26, 0.96);
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      z-index: 999;
      padding: 12px 0;
      box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
      transform: translateY(100%);
      transition: transform 0.3s ease;
    }
    .fixed-action-bar.visible {
      transform: translateY(0);
    }
    .fixed-bar-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .fixed-bar-info {
      display: flex;
      align-items: center;
      gap: 16px;
      color: #FFFFFF;
    }
    .fixed-bar-title {
      font-weight: 700;
      font-size: 0.95rem;
    }
    .fixed-bar-tip {
      font-size: 0.8rem;
      color: #94A3B8;
    }

    /* 页脚 */
    .footer {
      background-color: #0B0E11;
      color: #94A3B8;
      padding: 80px 0 32px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 48px;
      margin-bottom: 60px;
    }
    .footer-logo {
      color: #FFFFFF;
      font-size: 1.3rem;
      font-weight: 800;
      margin-bottom: 18px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .footer-desc {
      font-size: 0.875rem;
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .footer-title {
      font-size: 1rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 20px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .footer-links a {
      font-size: 0.875rem;
      color: #94A3B8;
    }
    .footer-links a:hover {
      color: var(--primary);
    }
    .footer-contact-item {
      font-size: 0.875rem;
      margin-bottom: 12px;
      line-height: 1.6;
    }
    .footer-contact-item strong {
      color: #E2E8F0;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 30px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.8125rem;
      color: #64748B;
      flex-wrap: wrap;
      gap: 16px;
    }

    /* 响应式断点适配 */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
        gap: 60px;
      }
      .hero-content {
        max-width: 100%;
        text-align: center;
      }
      .hero-actions {
        justify-content: center;
      }
      .hero-trust {
        justify-content: center;
      }
      .coupon-grid, .trio-grid, .plans-grid, .scenario-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .guarantee-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        row-gap: 40px;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
        row-gap: 40px;
      }
    }
    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .nav-menu {
        display: none;
      }
      .menu-toggle {
        display: block;
      }
      .hero-title {
        font-size: 2.25rem;
      }
      .matrix-split-grid {
        grid-template-columns: 1fr;
      }
      .coupon-grid, .trio-grid, .plans-grid, .scenario-grid, .news-grid, .reviews-grid {
        grid-template-columns: 1fr;
      }
      .guarantee-grid {
        grid-template-columns: 1fr;
      }
      .cta-form {
        flex-direction: column;
      }
      .cta-banner {
        padding: 40px 20px;
      }
      .fixed-bar-tip {
        display: none;
      }
      .hero-stack-stage {
        height: 440px;
      }
      .stack-card-main {
        width: 320px;
      }
      .stack-card-left {
        width: 260px;
      }
      .stack-card-right {
        width: 260px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }