/* ========================================
   Vidu 定价页 - 完整样式表
   颜色体系：暗色主题 + 紫蓝渐变
   ======================================== */

/* CSS 变量 - 颜色配置 */
:root {
    /* 主色调 */
    --purple-400: #4d94ff;
    --purple-500: #006CE6;
    --purple-600: #0066cc;
    --purple-700: #004499;
    --purple-900: #002266;

    /* 靛蓝色 */
    --indigo-500: #006CE6;
    --indigo-600: #0055b8;

    /* 背景色 */
    --bg-primary: #09090b;
    --bg-secondary: #111114;
    --bg-tertiary: #18181b;
    --bg-card: rgba(255, 255, 255, 0.03);
    --bg-card-hover: rgba(255, 255, 255, 0.06);

    /* 表面色 */
    --surface-1: #1c1c20;
    --surface-2: #232328;
    --surface-3: #2a2a30;

    /* 文本色 */
    --text-primary: #fafafa;
    --text-secondary: #a1a1aa;
    --text-tertiary: #71717a;
    --text-muted: #52525b;

    /* 边框色 */
    --border-default: rgba(255, 255, 255, 0.06);
    --border-light: rgba(255, 255, 255, 0.1);
    --border-purple: rgba(0, 108, 230, 0.3);
    --border-purple-strong: rgba(0, 108, 230, 0.5);

    /* 渐变 */
    --gradient-primary: linear-gradient(135deg, #006CE6, #006CE6);
    --gradient-purple: linear-gradient(135deg, #4d94ff, #006CE6);
    --gradient-bg: radial-gradient(ellipse at top, rgba(0, 108, 230, 0.08) 0%, transparent 60%);
    --gradient-card-glow: radial-gradient(ellipse at 50% 0%, rgba(0, 108, 230, 0.12) 0%, transparent 70%);

    /* 阴影 */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-purple: 0 8px 32px rgba(0, 108, 230, 0.15);
    --shadow-purple-strong: 0 12px 48px rgba(0, 108, 230, 0.25);

    /* 其他 */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========================================
   基础重置
   ======================================== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
    color: inherit;
}

/* ========================================
   导航栏
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(9, 9, 11, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-default);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-text {
    font-size: 22px;
    font-weight: 800;
    letter-spacing: -0.5px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-link {
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.nav-link.active {
    color: var(--text-primary);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-btn {
    padding: 8px 20px;
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.login-btn {
    color: var(--text-secondary);
}

.login-btn:hover {
    color: var(--text-primary);
}

.trial-btn {
    background: var(--gradient-primary);
    color: white;
    border-radius: var(--radius-sm);
}

.trial-btn:hover {
    opacity: 0.9;
    transform: translateY(-1px);
    box-shadow: var(--shadow-purple);
}

/* ========================================
   定价区域
   ======================================== */
.pricing-section {
    max-width: 1280px;
    margin: 0 auto;
    padding: 40px 24px 80px;
}

/* 计费周期切换 */
.billing-toggle {
    display: flex;
    justify-content: center;
    margin-bottom: 48px;
}

.toggle-container {
    display: flex;
    background: var(--surface-1);
    border-radius: var(--radius-lg);
    padding: 4px;
    border: 1px solid var(--border-default);
}

.toggle-btn {
    padding: 10px 24px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
}

.toggle-btn.active {
    background: var(--surface-3);
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
}

.toggle-btn:hover:not(.active) {
    color: var(--text-primary);
}

.save-badge {
    font-size: 11px;
    font-weight: 600;
    color: #22c55e;
    background: rgba(34, 197, 94, 0.1);
    padding: 2px 8px;
    border-radius: 99px;
    border: 1px solid rgba(34, 197, 94, 0.2);
}

/* 定价卡片网格 */
.pricing-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    align-items: start;
}

/* 定价卡片基础样式 */
.pricing-card {
    background: var(--bg-card);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-xl);
    padding: 32px 28px;
    transition: var(--transition);
    position: relative;
    backdrop-filter: blur(10px);
}

.pricing-card:hover {
    border-color: var(--border-light);
    background: var(--bg-card-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* 推荐卡片 */
.pricing-card.recommended {
    border-color: var(--border-purple-strong);
    background: var(--gradient-card-glow);
    box-shadow: var(--shadow-purple);
}

.pricing-card.recommended:hover {
    border-color: var(--purple-500);
    box-shadow: var(--shadow-purple-strong);
    transform: translateY(-6px);
}

.recommend-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: white;
    font-size: 12px;
    font-weight: 600;
    padding: 4px 16px;
    border-radius: 99px;
    white-space: nowrap;
}

/* 卡片头部 */
.card-header {
    margin-bottom: 24px;
}

.plan-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.free-icon {
    background: rgba(161, 161, 170, 0.1);
    color: var(--text-secondary);
    border: 1px solid rgba(161, 161, 170, 0.15);
}

.standard-icon {
    background: rgba(59, 130, 246, 0.1);
    color: #60a5fa;
    border: 1px solid rgba(59, 130, 246, 0.15);
}

.pro-icon {
    background: rgba(0, 108, 230, 0.15);
    color: var(--purple-400);
    border: 1px solid rgba(0, 108, 230, 0.2);
}

.ultimate-icon {
    background: rgba(245, 158, 11, 0.1);
    color: #fbbf24;
    border: 1px solid rgba(245, 158, 11, 0.15);
}

.plan-name {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 6px;
    letter-spacing: -0.3px;
}

.plan-desc {
    font-size: 13px;
    color: var(--text-tertiary);
    line-height: 1.4;
}

/* 价格显示 */
.card-price {
    display: flex;
    align-items: baseline;
    margin-bottom: 16px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-default);
}

.price-amount {
    display: flex;
    align-items: baseline;
}

.currency {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-right: 2px;
}

.price-value {
    font-size: 40px;
    font-weight: 800;
    letter-spacing: -2px;
    line-height: 1;
    transition: var(--transition);
}

.price-period {
    font-size: 14px;
    color: var(--text-tertiary);
    margin-left: 4px;
}

/* 积分信息 */
.card-credits {
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.credit-info {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--purple-400);
    font-weight: 500;
}

.credit-info svg {
    flex-shrink: 0;
}

.credit-info.secondary {
    color: var(--text-tertiary);
    font-weight: 400;
}

/* 按钮 */
.card-btn {
    width: 100%;
    padding: 12px 24px;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: var(--transition);
    margin-bottom: 28px;
}

.free-btn {
    background: var(--surface-2);
    color: var(--text-primary);
    border: 1px solid var(--border-light);
}

.free-btn:hover {
    background: var(--surface-3);
    transform: translateY(-1px);
}

.standard-btn {
    background: var(--surface-2);
    color: var(--text-primary);
    border: 1px solid var(--border-light);
}

.standard-btn:hover {
    background: var(--surface-3);
    transform: translateY(-1px);
}

.pro-btn {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-purple);
}

.pro-btn:hover {
    opacity: 0.9;
    transform: translateY(-1px);
    box-shadow: var(--shadow-purple-strong);
}

.ultimate-btn {
    background: var(--surface-2);
    color: var(--text-primary);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.ultimate-btn:hover {
    background: rgba(245, 158, 11, 0.1);
    border-color: rgba(245, 158, 11, 0.5);
    transform: translateY(-1px);
}

/* 特性列表 */
.card-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--text-secondary);
}

.feature-item svg {
    flex-shrink: 0;
    color: var(--purple-500);
}

.feature-item.disabled {
    color: var(--text-muted);
}

.feature-item.disabled svg {
    color: var(--text-muted);
}

/* ========================================
   功能对比表
   ======================================== */
.comparison-section {
    max-width: 1100px;
    margin: 0 auto;
    padding: 80px 24px;
}

.section-title {
    text-align: center;
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 48px;
    letter-spacing: -0.5px;
}

.comparison-table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-default);
    background: var(--bg-card);
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.comparison-table thead th {
    padding: 16px 20px;
    font-weight: 600;
    font-size: 13px;
    color: var(--text-secondary);
    text-align: center;
    border-bottom: 1px solid var(--border-default);
    background: rgba(255, 255, 255, 0.02);
    white-space: nowrap;
}

.comparison-table thead th.feature-col {
    text-align: left;
    width: 200px;
}

.comparison-table thead th.highlight-col {
    color: var(--purple-400);
    background: rgba(0, 108, 230, 0.05);
}

.comparison-table tbody td {
    padding: 14px 20px;
    text-align: center;
    border-bottom: 1px solid var(--border-default);
    color: var(--text-secondary);
    white-space: nowrap;
}

.comparison-table tbody td.feature-col {
    text-align: left;
    color: var(--text-primary);
    font-weight: 500;
}

.comparison-table tbody td.highlight-col {
    background: rgba(0, 108, 230, 0.03);
}

.comparison-table tbody tr:last-child td {
    border-bottom: none;
}

.comparison-table tbody tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

.comparison-table tbody tr:hover td.highlight-col {
    background: rgba(0, 108, 230, 0.06);
}

/* ========================================
   FAQ 区域
   ======================================== */
.faq-section {
    max-width: 800px;
    margin: 0 auto;
    padding: 80px 24px;
}

.faq-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    background: var(--bg-card);
}

.faq-item:hover {
    border-color: var(--border-light);
}

.faq-item.active {
    border-color: var(--border-purple);
    background: rgba(0, 108, 230, 0.03);
}

.faq-question {
    width: 100%;
    padding: 20px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-primary);
    text-align: left;
    transition: var(--transition);
}

.faq-question:hover {
    color: var(--purple-400);
}

.faq-arrow {
    flex-shrink: 0;
    color: var(--text-tertiary);
    transition: transform 0.3s ease;
}

.faq-item.active .faq-arrow {
    transform: rotate(180deg);
    color: var(--purple-400);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 200px;
}

.faq-answer p {
    padding: 0 24px 20px;
    font-size: 14px;
    line-height: 1.7;
    color: var(--text-secondary);
}

/* ========================================
   CTA 区域
   ======================================== */
.cta-section {
    position: relative;
    padding: 100px 24px;
    text-align: center;
    overflow: hidden;
}

.cta-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 400px;
    background: radial-gradient(ellipse, rgba(0, 108, 230, 0.1) 0%, rgba(99, 102, 241, 0.05) 40%, transparent 70%);
    pointer-events: none;
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta-content h2 {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}

.cta-content p {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
}

.cta-primary-btn {
    display: inline-flex;
    align-items: center;
    padding: 14px 32px;
    font-size: 15px;
    font-weight: 600;
    color: white;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    transition: var(--transition);
    box-shadow: var(--shadow-purple);
}

.cta-primary-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-purple-strong);
    opacity: 0.95;
}

.cta-secondary-btn {
    display: inline-flex;
    align-items: center;
    padding: 14px 32px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    background: var(--surface-2);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.cta-secondary-btn:hover {
    background: var(--surface-3);
    transform: translateY(-2px);
}

/* ========================================
   页脚
   ======================================== */
.footer {
    border-top: 1px solid var(--border-default);
    background: var(--bg-secondary);
}

.footer-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 64px 24px 32px;
}

.footer-grid {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand .logo {
    margin-bottom: 12px;
}

.footer-desc {
    font-size: 13px;
    color: var(--text-tertiary);
    margin-bottom: 20px;
    line-height: 1.6;
    max-width: 420px;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: var(--surface-2);
    color: var(--text-tertiary);
    border: 1px solid var(--border-default);
    transition: var(--transition);
}

.social-link:hover {
    color: var(--purple-400);
    border-color: var(--border-purple);
    background: rgba(0, 108, 230, 0.08);
}

.footer-links-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links-group h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.footer-links-group a {
    font-size: 13px;
    color: var(--text-tertiary);
    transition: var(--transition);
}

.footer-links-group a:hover {
    color: var(--text-primary);
}

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid var(--border-default);
    text-align: center;
}

.footer-beian {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px 18px;
    margin-bottom: 10px;
}

.footer-beian__item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--text-muted);
    font-size: 13px;
    line-height: 1.4;
    transition: var(--transition);
}

.footer-beian__item:hover {
    color: var(--text-primary);
}

.footer-beian__item img {
    width: 18px;
    height: 18px;
    flex: 0 0 auto;
}

.footer-bottom p {
    font-size: 13px;
    color: var(--text-muted);
}

/* ========================================
   响应式设计
   ======================================== */
@media (max-width: 1200px) {
    .pricing-cards {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .pricing-card.recommended {
        order: -1;
        grid-column: span 2;
        max-width: 480px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero-title {
        font-size: 36px;
        letter-spacing: -1px;
    }

    .hero-subtitle {
        font-size: 15px;
    }

    .pricing-cards {
        grid-template-columns: 1fr;
        max-width: 420px;
        margin: 0 auto;
    }

    .pricing-card.recommended {
        grid-column: span 1;
        max-width: 100%;
    }

    .section-title {
        font-size: 26px;
    }

    .cta-content h2 {
        font-size: 28px;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .toggle-btn {
        padding: 8px 16px;
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 0 16px;
    }

    .hero {
        padding: 120px 16px 40px;
    }

    .hero-title {
        font-size: 28px;
    }

    .pricing-section {
        padding: 20px 16px 60px;
    }

    .pricing-card {
        padding: 24px 20px;
    }

    .price-value {
        font-size: 32px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .comparison-section,
    .faq-section {
        padding: 60px 16px;
    }
}

/* ========================================
   滚动条样式
   ======================================== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--surface-3);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* ========================================
   页面加载动画
   ======================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.pricing-card {
    animation: fadeInUp 0.6s ease-out backwards;
}

.pricing-card:nth-child(1) { animation-delay: 0.1s; }
.pricing-card:nth-child(2) { animation-delay: 0.2s; }
.pricing-card:nth-child(3) { animation-delay: 0.3s; }
.pricing-card:nth-child(4) { animation-delay: 0.4s; }

.comparison-section {
    animation: fadeInUp 0.6s ease-out 0.5s backwards;
}

.faq-section {
    animation: fadeInUp 0.6s ease-out 0.6s backwards;
}

/* ========================================
   选择框样式（计费切换内部指示器）
   ======================================== */
.toggle-container {
    position: relative;
}

/* ========================================
   价格动画
   ======================================== */
.price-value.changing {
    animation: priceChange 0.3s ease;
}

@keyframes priceChange {
    0% { opacity: 1; transform: translateY(0); }
    50% { opacity: 0; transform: translateY(-10px); }
    100% { opacity: 1; transform: translateY(0); }
}

/* ========================================
   展云枢 Hero 区域 - 样式整合
   ======================================== */

/* 展云枢 Hero 粒子 Canvas */
canvas.hero-canvas {
    position: fixed;
    inset: 0;
    z-index: -1;
    width: 100%;
    height: 100%;
    pointer-events: none;
    opacity: 0.76;
}

/* 展云枢 Hero 区域重写 */
.hero {
    position: relative;
    min-height: 760px;
    padding: clamp(100px, 10vw, 140px) 0 clamp(58px, 8vw, 88px);
    text-align: left;
    overflow: visible;
    background:
        radial-gradient(circle at 50% -20%, rgba(0, 108, 230, 0.18), transparent 42rem),
        radial-gradient(circle at 95% 18%, rgba(77, 148, 255, 0.10), transparent 30rem);
}

.hero::before {
    content: "";
    position: absolute;
    inset: 12% -16% auto auto;
    width: min(44vw, 640px);
    aspect-ratio: 1;
    background: radial-gradient(circle, rgba(0, 108, 230, 0.20), transparent 68%);
    filter: blur(10px);
    pointer-events: none;
}

/* 展云枢容器 */
.section-shell {
    width: min(1180px, calc(100% - 44px));
    margin: 0 auto;
}

/* Hero 两栏布局 */
.hero-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(380px, .92fr);
    align-items: center;
    gap: clamp(28px, 5vw, 72px);
}

/* 信号徽章 */
.signal-pill {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    width: fit-content;
    padding: 9px 13px;
    color: var(--text-primary);
    background: rgba(0, 108, 230, .10);
    border: 1px solid rgba(0, 108, 230, .24);
    border-radius: 12px;
    font-size: 14px;
    font-weight: 800;
}

.signal-pill span {
    width: 9px;
    height: 9px;
    background: #4ade80;
    border-radius: 50%;
    box-shadow: 0 0 16px rgba(0, 108, 230, .8);
}

/* 展云枢 Hero 标题 */
.expo-hero-title {
    max-width: min(100vw - 44px, 1040px);
    margin-top: 22px;
    color: var(--text-primary);
    font-size: clamp(44px, 5.6vw, 76px);
    font-weight: 800;
    line-height: 1.02;
    letter-spacing: 0;
    text-wrap: balance;
    text-shadow:
        0 0 18px rgba(0, 108, 230, .30),
        0 0 48px rgba(0, 68, 153, .24);
}

.expo-hero-title span {
    display: block;
    white-space: nowrap;
}

@supports (background-clip: text) or (-webkit-background-clip: text) {
    .expo-hero-title {
        color: transparent;
        background: linear-gradient(180deg, #ffffff 6%, #e9d5ff 42%, #4d94ff 78%, #0055b8 100%);
        -webkit-background-clip: text;
        background-clip: text;
    }
}

/* 展云枢 Hero 副标题覆盖 */
.hero .hero-subtitle {
    max-width: 680px;
    margin-top: 24px;
    font-size: clamp(14px, 2vw, 15px);
    line-height: 1.78;
    text-wrap: pretty;
}

/* Hero 操作按钮 */
.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 34px;
}

.expo-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 50px;
    padding: 0 22px;
    border: 1px solid transparent;
    border-radius: 16px;
    font-weight: 800;
    font-size: 15px;
    text-decoration: none;
    color: inherit;
    cursor: pointer;
    transition: transform .25s cubic-bezier(.16, 1, .3, 1), border-color .25s cubic-bezier(.16, 1, .3, 1), background .25s cubic-bezier(.16, 1, .3, 1), box-shadow .25s cubic-bezier(.16, 1, .3, 1);
}

.expo-button:hover {
    transform: translateY(-2px);
}

.expo-button.primary {
    color: #121624;
    background: #006CE6;
    box-shadow: 0 16px 42px rgba(0, 108, 230, .28);
}

.expo-button.primary:hover {
    background: #f0a050;
}

.expo-button.ghost {
    color: var(--text-primary);
    background: rgba(255, 255, 255, .06);
    border-color: rgba(168, 220, 255, .24);
}

/* ========================================
   Hero 舞台区域（右侧可视化）
   ======================================== */
.hero-stage {
    position: relative;
    min-height: 570px;
    isolation: isolate;
    overflow: visible;
}

/* 背景网格 */
.stage-grid {
    position: absolute;
    inset: 5% 0 0;
    border: 1px solid rgba(0, 108, 230, .14);
    border-radius: 32px;
    background:
        linear-gradient(rgba(0, 102, 204, .09) 1px, transparent 1px) 0 0 / 36px 36px,
        linear-gradient(90deg, rgba(0, 102, 204, .09) 1px, transparent 1px) 0 0 / 36px 36px,
        radial-gradient(circle at 50% 40%, rgba(0, 68, 153, .24), transparent 52%);
    transform: perspective(760px) rotateX(55deg) rotateZ(-9deg);
    transform-origin: center;
}

.stage-grid span {
    position: absolute;
    width: 9px;
    height: 9px;
    background: oklch(0.65 0.18 250);
    border-radius: 50%;
    box-shadow: 0 0 24px rgba(0, 108, 230, .9);
    animation: stagePulse 3.2s ease-in-out infinite;
}

.stage-grid span:nth-child(1) { left: 19%; top: 26%; }
.stage-grid span:nth-child(2) { right: 23%; top: 18%; animation-delay: .4s; }
.stage-grid span:nth-child(3) { left: 42%; bottom: 24%; animation-delay: .8s; }
.stage-grid span:nth-child(4) { right: 12%; bottom: 34%; animation-delay: 1.2s; }

/* 核心引擎 */
.engine-core {
    position: absolute;
    left: 50%;
    top: 42%;
    z-index: 3;
    width: 180px;
    height: 180px;
    transform: translate(-50%, -50%);
}

.core-ring,
.core-dot {
    position: absolute;
    inset: 0;
    border-radius: 50%;
}

.core-ring {
    border: 1px solid rgba(0, 108, 230, .36);
    box-shadow: inset 0 0 34px rgba(0, 102, 204, .22), 0 0 60px rgba(0, 68, 153, .3);
    animation: coreRotate 18s linear infinite;
}

.core-ring::before,
.core-ring::after {
    content: "";
    position: absolute;
    inset: 20px;
    border: 1px dashed rgba(77, 148, 255, .32);
    border-radius: 50%;
}

.core-ring::after {
    inset: 46px;
    border-style: solid;
    border-color: rgba(244, 159, 65, .38);
}

.core-dot {
    inset: 58px;
    background: radial-gradient(circle, oklch(0.65 0.18 250), rgba(0, 68, 153, .2) 62%, transparent);
    filter: drop-shadow(0 0 28px rgba(0, 108, 230, .85));
}

.core-label {
    position: absolute;
    left: 50%;
    bottom: 10px;
    width: max-content;
    padding: 6px 10px;
    color: var(--text-primary);
    background: rgba(4, 13, 28, .7);
    border: 1px solid rgba(0, 108, 230, .24);
    border-radius: 10px;
    font-size: 11px;
    font-weight: 800;
    transform: translateX(-50%);
}

/* 数据卡片 */
.data-card {
    position: absolute;
    z-index: 4;
    width: 190px;
    padding: 17px;
    border-radius: 18px;
    background: linear-gradient(180deg, rgba(255, 255, 255, .10), rgba(255, 255, 255, .045));
    border: 1px solid rgba(255, 255, 255, .06);
    box-shadow: 0 34px 90px rgba(0, 12, 32, .52);
    backdrop-filter: blur(16px);
    animation: stageFloat 5.5s ease-in-out infinite;
}

.data-card small {
    color: var(--text-secondary);
}

.data-card strong {
    display: block;
    margin: 2px 0;
    color: var(--text-primary);
    font-size: 34px;
    line-height: 1;
}

.data-card em {
    color: var(--text-tertiary);
    font-size: 12px;
    font-style: normal;
}

.card-checkin { right: 0; top: 78px; }
.card-match { left: -8%; bottom: 54px; animation-delay: 1.4s; }

/* 产品屏幕面板 */
.product-screen {
    position: absolute;
    right: 5%;
    bottom: 6%;
    z-index: 2;
    width: min(86%, 430px);
    padding: 18px;
    border-radius: 24px;
    background: rgba(7, 19, 38, .84);
    border: 1px solid rgba(255, 255, 255, .06);
    box-shadow: 0 34px 90px rgba(0, 12, 32, .52);
    backdrop-filter: blur(18px);
}

.screen-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--text-primary);
    font-weight: 800;
}

.screen-top i {
    width: 72px;
    height: 8px;
    background: linear-gradient(90deg, oklch(0.65 0.18 250), transparent);
    border-radius: 99px;
}

.screen-metrics {
    display: flex;
    gap: 10px;
    margin-top: 18px;
}

.screen-metrics div {
    flex: 1;
    min-width: 0;
    padding: 13px;
    background: rgba(255, 255, 255, .07);
    border: 1px solid rgba(0, 108, 230, .12);
    border-radius: 14px;
}

.screen-metrics strong {
    display: block;
    margin-top: 5px;
    color: oklch(0.65 0.18 250);
    font-size: 20px;
}

.screen-metrics small {
    color: var(--text-secondary);
}

.screen-body {
    display: grid;
    gap: 10px;
    margin-top: 14px;
}

.flow-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 13px;
    background: rgba(255, 255, 255, .055);
    border: 1px solid rgba(0, 108, 230, .12);
    border-radius: 13px;
}

.flow-card.active {
    background: rgba(0, 102, 204, .14);
    border-color: rgba(0, 108, 230, .38);
}

.flow-card span {
    color: #006CE6;
    font-weight: 800;
}

.flow-card strong {
    font-size: 13px;
    color: var(--text-primary);
}

/* ========================================
   展云枢 Reveal 动画
   ======================================== */
.expo-reveal-init .reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity .72s cubic-bezier(.16, 1, .3, 1), transform .72s cubic-bezier(.16, 1, .3, 1);
}

.expo-reveal-init .reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   展云枢 Hero 动画 Keyframes
   ======================================== */
@keyframes stagePulse {
    0%, 100% { opacity: .45; transform: scale(.82); }
    50% { opacity: 1; transform: scale(1.28); }
}

@keyframes stageFloat {
    0%, 100% { transform: translate3d(0, 0, 0); }
    50% { transform: translate3d(0, -14px, 0); }
}

@keyframes coreRotate {
    to { transform: rotate(360deg); }
}

/* ========================================
   展云枢 Hero 响应式
   ======================================== */
@media (max-width: 1120px) {
    .hero-layout {
        grid-template-columns: 1fr;
    }

    .hero-stage {
        min-height: 520px;
    }
}

@media (max-width: 768px) {
    .hero {
        min-height: auto;
        padding-top: 80px;
    }

    .hero-stage {
        min-height: 500px;
    }

    .engine-core {
        width: 150px;
        height: 150px;
    }

    .data-card {
        width: 166px;
    }

    .card-checkin {
        right: 0;
        top: 40px;
    }

    .card-match {
        left: 0;
        bottom: 86px;
    }

    .product-screen {
        width: 100%;
        right: 0;
    }

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

    .hero-actions .expo-button {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .hero-stage {
        min-height: 470px;
    }

    .core-label {
        font-size: 10px;
    }

    .data-card strong {
        font-size: 28px;
    }
}

@media (prefers-reduced-motion: reduce) {
    canvas.hero-canvas {
        display: none;
    }

    .stage-grid span,
    .core-ring,
    .data-card {
        animation: none;
    }

    .expo-reveal-init .reveal,
    .expo-reveal-init .reveal.is-visible {
        opacity: 1;
        transform: none;
    }
}

/* ========================================
   展云枢 信任条 - 角色滚动
   ======================================== */
.trust-strip {
    padding: 18px 0;
    background: rgba(4, 13, 27, 0.44);
}

.strip-window {
    position: relative;
    overflow: hidden;
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 9%, #000 91%, transparent);
    mask-image: linear-gradient(90deg, transparent, #000 9%, #000 91%, transparent);
}

.strip-track {
    display: flex;
    width: max-content;
    animation: stripMarquee 28s linear infinite;
    will-change: transform;
}

.strip-group {
    display: flex;
    flex: 0 0 auto;
    gap: 10px;
    padding-right: 10px;
}

.strip-track span {
    padding: 7px 12px;
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.045);
    border: 1px solid rgba(0, 108, 230, 0.14);
    border-radius: 10px;
    font-size: 12px;
    line-height: 1.2;
    white-space: nowrap;
}

@keyframes stripMarquee {
    to { transform: translateX(-50%); }
}

/* ========================================
   展云枢 客户痛点 / 翻转卡片
   ======================================== */
.pain-section,
.solutions-section,
.role-upgrade,
.infra-security,
.pricing-section {
    scroll-margin-top: 80px;
}

.pain-section {
    padding: clamp(78px, 10vw, 132px) 0;
}

.section-intro {
    max-width: 820px;
    margin: 0 auto 44px;
}

.pain-intro {
    max-width: 980px;
    margin-inline: auto;
    text-align: center;
}

.pain-intro h2::after {
    margin-inline: auto;
}

.section-label {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    width: fit-content;
    color: #006CE6;
    font-size: 14px;
    font-weight: 800;
}

.section-intro h2 {
    margin-top: 12px;
}

.section-intro h2::after {
    content: "";
    display: block;
    width: 86px;
    height: 2px;
    margin-top: 18px;
    background: linear-gradient(90deg, transparent, #006CE6, transparent);
    border-radius: 99px;
    box-shadow: 0 0 18px rgba(0, 108, 230, .58);
}

.tech-title {
    font-size: clamp(31px, 4.7vw, 56px);
    color: var(--text-primary);
    text-shadow:
        0 0 20px rgba(0, 108, 230, .24),
        0 0 44px rgba(0, 68, 153, .20);
}

@supports (background-clip: text) or (-webkit-background-clip: text) {
    .tech-title {
        color: transparent;
        background: linear-gradient(180deg, #ffffff 8%, #e9d5ff 48%, #006CE6 100%);
        -webkit-background-clip: text;
        background-clip: text;
    }
}

.section-intro p {
    max-width: 760px;
    margin: 16px auto 0;
    font-size: 15px;
    text-wrap: pretty;
    color: var(--text-secondary);
}

.pain-intro p {
    margin-inline: auto;
}

/* 痛点卡片网格 */
.pain-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

/* 痛点卡片 */
.pain-card {
    min-height: 342px;
    position: relative;
    border: 0;
    border-radius: 24px;
    background: transparent;
    box-shadow: none;
    cursor: pointer;
    outline: none;
    perspective: 1200px;
}

.pain-card:focus-visible .pain-card-inner {
    box-shadow: 0 0 0 3px rgba(0, 108, 230, .38), var(--shadow-lg);
}

.pain-card-inner {
    position: relative;
    min-height: 342px;
    height: 100%;
    border-radius: 24px;
    transform-style: preserve-3d;
    transition: transform .72s cubic-bezier(.16, 1, .3, 1), box-shadow .35s ease;
}

.pain-card:hover .pain-card-inner,
.pain-card.is-flipped .pain-card-inner {
    transform: rotateY(180deg);
}

.pain-face {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    min-height: 342px;
    padding: 26px;
    overflow: hidden;
    border: 1px solid var(--border-default);
    border-radius: 24px;
    background: linear-gradient(180deg, rgba(255, 255, 255, .10), rgba(255, 255, 255, .045));
    backface-visibility: hidden;
    box-shadow: var(--shadow-lg);
}

.pain-face::after {
    content: "";
    position: absolute;
    inset: auto -30% -35% 18%;
    height: 160px;
    background: radial-gradient(circle, rgba(0, 102, 204, .16), transparent 66%);
    pointer-events: none;
}

.pain-face.back {
    background:
        radial-gradient(circle at 72% 18%, rgba(0, 108, 230, .36), transparent 18rem),
        linear-gradient(155deg, rgba(0, 102, 204, .22), rgba(255, 255, 255, .055));
    border-color: rgba(0, 108, 230, .44);
    transform: rotateY(180deg);
}

.pain-face.back::before {
    content: "";
    position: absolute;
    inset: 18px 18px auto auto;
    width: 74px;
    height: 74px;
    border: 1px solid rgba(77, 148, 255, .30);
    border-radius: 50%;
    box-shadow: inset 0 0 26px rgba(0, 108, 230, .22), 0 0 28px rgba(0, 108, 230, .20);
}

.pain-index {
    color: #006CE6;
    font-size: 14px;
    font-weight: 900;
}

.pain-card h3 {
    margin-top: 14px;
    font-size: 24px;
    color: var(--text-primary);
}

.pain-card p {
    margin-top: 12px;
    font-size: 14px;
    color: var(--text-secondary);
}

.flip-hint {
    margin-top: auto;
    color: var(--text-tertiary);
    font-size: 13px;
    font-weight: 800;
}

.pain-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 9px;
    margin-top: auto;
}

.pain-tags span {
    padding: 7px 10px;
    color: #071326;
    background: #006CE6;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 900;
}

/* ========================================
   展云枢 痛点翻转卡片 响应式
   ======================================== */
@media (max-width: 1120px) {
    .pain-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .pain-section {
        padding: 60px 0;
    }

    .pain-card,
    .pain-card-inner,
    .pain-face {
        min-height: 300px;
    }

    .pain-card:hover .pain-card-inner {
        transform: none;
    }

    .pain-card.is-flipped .pain-card-inner {
        transform: rotateY(180deg);
    }

    .pain-grid {
        grid-template-columns: 1fr;
        max-width: 420px;
        margin: 0 auto;
    }
}

@media (prefers-reduced-motion: reduce) {
    .pain-card,
    .pain-card-inner,
    .pain-face {
        min-height: auto;
    }

    .pain-card {
        cursor: default;
    }

    .pain-card-inner,
    .pain-card:hover .pain-card-inner,
    .pain-card.is-flipped .pain-card-inner {
        display: grid;
        gap: 14px;
        transform: none;
    }

    .pain-face {
        position: relative;
        transform: none !important;
        backface-visibility: visible;
    }

    .flip-hint {
        display: none;
    }
}

/* ========================================
   解决方案 - 多元会展场景
   ======================================== */
.solutions-section {
    padding: clamp(78px, 10vw, 132px) 0;
}

.vidu-container {
    width: min(1180px, calc(100% - 44px));
    margin: 0 auto;
}

.section-header {
    max-width: 820px;
    margin: 0 auto 44px;
    text-align: center;
}

.solutions-section .section-header {
    max-width: 820px;
    margin: 0 auto 44px;
    text-align: center;
}

.solutions-section .section-label {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    width: fit-content;
    color: #4d94ff;
    font-size: 14px;
    font-weight: 800;
}

.solutions-section .section-label svg {
    width: 16px;
    height: 16px;
}

.vidu-section-title {
    margin-top: 12px;
    margin-bottom: 0;
    font-size: clamp(31px, 4.7vw, 56px);
    font-weight: 700;
    line-height: 1.12;
    letter-spacing: -0.5px;
    color: var(--text-primary);
}

.vidu-section-title::after {
    content: "";
    display: block;
    width: 86px;
    height: 2px;
    margin: 18px auto 0;
    background: linear-gradient(90deg, transparent, #006CE6, transparent);
    border-radius: 99px;
    box-shadow: 0 0 18px rgba(0, 108, 230, 0.58);
}

.section-desc {
    max-width: 760px;
    margin: 16px auto 0;
    font-size: 15px;
    text-wrap: pretty;
    color: var(--text-secondary);
}

.solutions-section .section-desc {
    max-width: 760px;
    margin: 16px auto 0;
    font-size: 15px;
    text-wrap: pretty;
    color: var(--text-secondary);
}

/* 选项卡导航 */
.solutions-tabs {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 40px;
}

.solutions-tab {
    position: relative;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 16px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-default);
    border-radius: 12px;
    color: var(--text-secondary);
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.25s ease;
    overflow: visible;
}

.solutions-tab:hover {
    border-color: #0055b8;
    color: var(--text-primary);
}

.solutions-tab.solutions-tab--active {
    background: linear-gradient(135deg, rgba(0, 85, 184, 0.2), rgba(0, 108, 230, 0.1));
    border-color: transparent;
    box-shadow: 0 0 0 1px rgba(0, 85, 184, 0.5);
    color: var(--text-primary);
}

.solutions-tab svg {
    opacity: 0.6;
    transition: opacity 0.25s ease;
}

.solutions-tab--active svg,
.solutions-tab:hover svg {
    opacity: 1;
}

/* 选项卡内容 */
.solutions-content {
    position: relative;
    min-height: 500px;
}

.solution-panel {
    display: none;
    animation: solFadeIn 0.4s ease forwards;
}

.solution-panel--active {
    display: block;
}

@keyframes solFadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.solution-panel__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.solution-panel__tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(0, 85, 184, 0.15);
    color: #4d94ff;
    font-size: 13px;
    font-weight: 500;
    border-radius: 20px;
    margin-bottom: 16px;
}

.solution-panel__title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.3;
    margin-bottom: 16px;
}

.solution-panel__pain {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 14px;
    background: rgba(239, 68, 68, 0.1);
    border-radius: 8px;
    color: #ef4444;
    font-size: 13px;
    margin-bottom: 24px;
}

.solution-panel__pain svg {
    flex-shrink: 0;
    margin-top: 2px;
    width: 14px;
    height: 14px;
}

/* 功能列表 */
.solution-features {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.solution-features--compact {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.solution-feature {
    display: flex;
    gap: 14px;
    padding: 16px;
    background: var(--bg-card);
    border-radius: 12px;
    border: 1px solid var(--border-default);
    transition: all 0.25s ease;
}

.solution-feature:hover {
    border-color: #0055b8;
}

.solution-feature--small {
    padding: 12px;
}

.solution-feature__icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: linear-gradient(135deg, rgba(0, 85, 184, 0.15), rgba(0, 108, 230, 0.1));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #4d94ff;
    flex-shrink: 0;
}

.solution-feature--small .solution-feature__icon {
    width: 36px;
    height: 36px;
}

.solution-feature__content h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.solution-feature--small .solution-feature__content h4 {
    font-size: 13px;
}

.solution-feature__content p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* 右侧可视化 */
.solution-panel__visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

/* 数据卡片通用样式 */
.visual-data-card {
    width: 100%;
    max-width: 380px;
    padding: 32px;
    background: linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.03));
    border: 1px solid var(--border-default);
    border-radius: 24px;
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.visual-data-card__header {
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
}

.visual-data-card__number {
    font-size: 56px;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -2px;
    line-height: 1;
    margin-bottom: 16px;
}

.visual-data-card__tags,
.visual-match__tags,
.visual-conf__tags {
    display: flex;
    gap: 8px;
    justify-content: center;
    flex-wrap: wrap;
}

.visual-data-card__tags span,
.visual-match__tags span,
.visual-conf__tags span {
    padding: 4px 12px;
    background: rgba(0, 85, 184, 0.15);
    color: #4d94ff;
    border-radius: 99px;
    font-size: 11px;
    font-weight: 600;
}

/* 采购对接可视化 */
.visual-match__pair {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 20px;
}

.visual-match__side {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 20px 16px;
    border-radius: 12px;
    min-width: 110px;
}

.visual-match__side.buyer {
    background: rgba(0, 108, 230, 0.08);
    border: 1px solid rgba(0, 108, 230, 0.25);
}

.visual-match__side.supplier {
    background: rgba(0, 108, 230, 0.08);
    border: 1px solid rgba(0, 108, 230, 0.25);
}

.visual-match__label {
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 700;
}

.visual-match__tag {
    font-size: 11px;
    color: var(--text-secondary);
    background: rgba(255,255,255,0.06);
    padding: 4px 10px;
    border-radius: 6px;
}

.visual-match__center {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.visual-match__ai {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: #0f172a;
    border: 2px solid #10b981;
    color: #10b981;
    font-size: 16px;
    font-weight: 800;
}

.visual-match__score {
    font-size: 10px;
    color: #10b981;
    font-weight: 600;
}

.visual-match__tags {
    margin-top: 8px;
}

/* 行业峰会可视化 */
.visual-conf__scene {
    text-align: center;
}

.visual-conf__stage {
    padding: 20px;
    background: linear-gradient(180deg, #0055b8, #1e293b);
    border-radius: 12px;
    margin-bottom: 20px;
}

.visual-conf__stage span {
    display: block;
    color: #fff;
    font-size: 16px;
    font-weight: 700;
}

.visual-conf__stage small {
    color: rgba(255,255,255,0.6);
    font-size: 12px;
}

.visual-conf__tables {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 16px;
}

.visual-conf__table {
    width: 80px;
    height: 80px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    border-radius: 50%;
    background: rgba(72, 88, 255, 0.08);
    border: 1px solid rgba(0, 85, 184, 0.25);
}

.visual-conf__table span {
    color: var(--text-primary);
    font-size: 13px;
    font-weight: 600;
}

.vip-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #f59e0b;
    box-shadow: 0 0 8px rgba(245, 158, 11, 0.8);
    animation: vipPulse 2s ease-in-out infinite;
}

@keyframes vipPulse {
    0%, 100% { opacity: 0.5; transform: scale(0.8); }
    50% { opacity: 1; transform: scale(1.2); }
}

.visual-conf__vip {
    margin-bottom: 16px;
}

.vip-badge {
    display: inline-block;
    padding: 6px 16px;
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: #0f172a;
    font-size: 12px;
    font-weight: 700;
    border-radius: 99px;
}

/* ========================================
   解决方案 响应式
   ======================================== */
@media (max-width: 1120px) {
    .solution-panel__inner {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .solution-panel__visual {
        order: -1;
    }

    .visual-data-card {
        max-width: 320px;
    }
}

@media (max-width: 768px) {
    .solutions-tabs {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }

    .solutions-tab {
        justify-content: center;
    }

    .solution-panel__title {
        font-size: 22px;
    }

    .solution-features--compact {
        grid-template-columns: 1fr;
    }

    .solution-panel__inner {
        gap: 24px;
    }

    .visual-match__pair {
        flex-direction: column;
        gap: 8px;
    }

    .visual-conf__tables {
        gap: 10px;
    }

    .visual-conf__table {
        width: 64px;
        height: 64px;
    }
}

/* ========================================
   SVG 可视化容器
   ======================================== */
.solution-visual {
    position: relative;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.solution-visual--trade {
    padding: 16px;
}

.solution-visual--match {
    padding: 16px;
}

.solution-visual--conference {
    padding: 16px;
}

.solution-visual svg {
    width: 100%;
    max-width: 400px;
    height: auto;
}

.trade-scene-svg,
.match-scene-svg,
.conference-scene-svg {
    filter: drop-shadow(0 0 20px rgba(0, 85, 184, 0.2));
}

/* SVG badge 悬浮动画 */
.trade-scene-svg:hover .badge {
    animation: badge-float 2s ease-in-out infinite;
}

@keyframes badge-float {
    0%, 100% { transform: translate(170px, 160px); }
    50% { transform: translate(170px, 155px); }
}

@keyframes scanLine {
    0% { transform: translateY(-100%); }
    55%, 100% { transform: translateY(100%); }
}

/* ========================================
   角色升级
   ======================================== */
.role-upgrade {
    position: relative;
    padding: clamp(78px, 10vw, 132px) 0;
    overflow: hidden;
}

.role-upgrade__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 48px;
}

.role-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border-default);
    border-radius: 24px;
    padding: 40px;
    text-align: center;
    transition: all 0.35s ease;
    overflow: hidden;
}

.role-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #0055b8, #006CE6);
    opacity: 0;
    transition: opacity 0.25s ease;
}

.role-card:hover {
    border-color: #0055b8;
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 85, 184, 0.2);
}

.role-card:hover::before {
    opacity: 1;
}

.role-card__before,
.role-card__after {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.role-card__before {
    opacity: 0.5;
}

.role-card__after {
    margin-bottom: 16px;
}

.role-card__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
    transition: all 0.25s ease;
}

.role-card__icon--before {
    width: 64px;
    height: 64px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-muted);
}

.role-card__icon--after {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.role-card__icon--data {
    color: #0055b8;
    background: radial-gradient(circle at top left, rgba(0, 85, 184, 0.25), rgba(72, 88, 255, 0.05));
    box-shadow: 0 0 30px rgba(0, 85, 184, 0.2);
}

.role-card__icon--connect {
    color: #006CE6;
    background: radial-gradient(circle at top left, rgba(0, 108, 230, 0.25), rgba(0, 108, 230, 0.05));
    box-shadow: 0 0 30px rgba(0, 108, 230, 0.2);
}

.role-card__icon--asset {
    color: #006CE6;
    background: radial-gradient(circle at top left, rgba(0, 108, 230, 0.25), rgba(0, 212, 255, 0.05));
    box-shadow: 0 0 30px rgba(0, 108, 230, 0.2);
}

.role-card:hover .role-card__icon--after {
    transform: scale(1.1);
    box-shadow: 0 0 50px rgba(0, 85, 184, 0.3);
}

.role-card__old-title {
    font-size: 13px;
    color: var(--text-muted);
    text-decoration: line-through;
    font-weight: 400;
}

.role-card__new-title {
    font-size: 22px;
    font-weight: 700;
    background: linear-gradient(135deg, #4d94ff, #006CE6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: var(--text-primary);
    transition: transform 0.25s ease;
}

.role-card:hover .role-card__new-title {
    transform: scale(1.05);
}

.role-card__arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: -4px 0 8px;
    color: #10b981;
}

.role-card__arrow svg {
    animation: arrowPulse 1.5s ease-in-out infinite;
}

@keyframes arrowPulse {
    0%, 100% { transform: translateY(0); opacity: 0.7; }
    50% { transform: translateY(4px); opacity: 1; }
}

.role-card__desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-default);
    transition: color 0.25s ease;
}

.role-card:hover .role-card__desc {
    color: var(--text-primary);
}

/* ========================================
   技术保障
   ======================================== */
.infra-security {
    padding: clamp(78px, 10vw, 132px) 0;
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.infra-security__bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 40% 40% at 20% 80%, rgba(0, 85, 184, 0.06), transparent),
        radial-gradient(ellipse 40% 40% at 80% 20%, rgba(0, 108, 230, 0.06), transparent);
    pointer-events: none;
}

.security-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 24px;
    position: relative;
    z-index: 1;
}

.security-card {
    padding: 32px;
    border-radius: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-default);
    text-align: center;
    transition: all 0.25s ease;
}

.security-card:hover {
    transform: translateY(-6px);
    border-color: #0055b8;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2), 0 0 30px rgba(0, 85, 184, 0.15);
}

.security-card:nth-child(1) { grid-column: 1 / 3; }
.security-card:nth-child(2) { grid-column: 3 / 5; }
.security-card:nth-child(3) { grid-column: 5 / 7; }
.security-card:nth-child(4) { grid-column: 2 / 4; }
.security-card:nth-child(5) { grid-column: 4 / 6; }

.security-card__icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(0, 85, 184, 0.1);
    color: #0055b8;
    transition: all 0.25s ease;
}

.security-card:hover .security-card__icon {
    background: #0055b8;
    color: white;
    transform: scale(1.1);
}

.security-card__title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.security-card__desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 角色升级+技术保障 响应式 */
@media (max-width: 1024px) {
    .role-upgrade__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .security-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .security-card:nth-child(1),
    .security-card:nth-child(2),
    .security-card:nth-child(3),
    .security-card:nth-child(4),
    .security-card:nth-child(5) {
        grid-column: auto;
    }
}

@media (max-width: 768px) {
    .role-upgrade__grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .role-card {
        padding: 32px;
    }

    .role-card__new-title {
        font-size: 20px;
    }

    .security-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .security-card {
        padding: 24px;
    }
}

/* ========================================
   订阅申请弹窗
   ======================================== */
body.application-modal-open {
    overflow: hidden;
}

.application-modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
    overflow: hidden;
}

.application-modal.is-open {
    display: flex;
}

.application-modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(2, 8, 18, 0.76);
    backdrop-filter: blur(14px);
}

.application-modal__panel {
    position: relative;
    width: min(860px, 100%);
    max-height: calc(100vh - 40px);
    overflow: visible;
    padding: clamp(20px, 3vw, 30px);
    border: 1px solid rgba(98, 151, 220, 0.34);
    border-radius: 24px;
    background:
        radial-gradient(circle at 82% 0%, rgba(0, 108, 230, 0.20), transparent 26rem),
        linear-gradient(180deg, rgba(18, 30, 52, 0.98), rgba(6, 13, 25, 0.98));
    box-shadow: 0 36px 100px rgba(0, 0, 0, 0.55);
}

.application-modal__close {
    position: absolute;
    top: 14px;
    right: 14px;
    width: 38px;
    height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 14px;
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.07);
    cursor: pointer;
}

.application-modal__header {
    max-width: 620px;
    padding-right: 48px;
    margin-bottom: 18px;
}

.application-modal__eyebrow {
    display: inline-flex;
    margin-bottom: 8px;
    color: #4cc9ff;
    font-size: 13px;
    font-weight: 800;
}

.application-modal__header h2 {
    margin: 0;
    color: var(--text-primary);
    font-size: clamp(24px, 3vw, 34px);
    line-height: 1.16;
}

.application-modal__header p {
    margin: 8px 0 0;
    color: var(--text-secondary);
    line-height: 1.58;
    font-size: 14px;
}

.application-form {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.application-form label {
    display: grid;
    gap: 6px;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 600;
}

.application-form input,
.application-form select,
.application-form textarea {
    width: 100%;
    min-width: 0;
    border: 1px solid rgba(120, 168, 230, 0.26);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.07);
    color: var(--text-primary);
    outline: none;
    padding: 10px 12px;
    font: inherit;
    font-size: 14px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.application-form input::placeholder,
.application-form textarea::placeholder {
    color: rgba(196, 208, 226, 0.58);
}

.application-form input:focus,
.application-form select:focus,
.application-form textarea:focus {
    border-color: rgba(76, 201, 255, 0.76);
    background: rgba(255, 255, 255, 0.10);
    box-shadow: 0 0 0 4px rgba(0, 108, 230, 0.16);
}

.application-form textarea {
    height: 78px;
    resize: none;
}

.application-form__wide,
.application-form__submit,
.application-form__message {
    grid-column: 1 / -1;
}

.application-form__submit {
    justify-self: start;
    min-width: 180px;
    min-height: 46px;
    border: 0;
    border-radius: 14px;
    color: #fff;
    background: linear-gradient(135deg, #006ce6, #4c8dff);
    font-weight: 800;
    cursor: pointer;
    box-shadow: 0 18px 42px rgba(0, 108, 230, 0.28);
}

.application-form__submit:disabled {
    cursor: not-allowed;
    opacity: 0.62;
}

.application-form__message {
    min-height: 18px;
    margin: -2px 0 0;
    color: #4cc9ff;
    font-size: 13px;
}

.application-form__message.error {
    color: #ff8a4c;
}

.application-success {
    position: absolute;
    inset: 0;
    z-index: 3;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: rgba(2, 8, 18, 0.54);
    backdrop-filter: blur(10px);
}

.application-success.is-open {
    display: flex;
}

.application-success__card {
    width: min(420px, 100%);
    padding: 30px 28px;
    border: 1px solid rgba(76, 201, 255, 0.34);
    border-radius: 22px;
    background:
        radial-gradient(circle at 50% 0%, rgba(76, 201, 255, 0.22), transparent 18rem),
        linear-gradient(180deg, rgba(16, 29, 51, 0.98), rgba(6, 13, 25, 0.98));
    color: var(--text-primary);
    text-align: center;
    box-shadow: 0 28px 70px rgba(0, 0, 0, 0.48);
}

.application-success__icon {
    width: 66px;
    height: 66px;
    margin: 0 auto 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: #07111f;
    background: linear-gradient(135deg, #4cc9ff, #8fffd2);
    box-shadow: 0 18px 46px rgba(76, 201, 255, 0.26);
}

.application-success h3 {
    margin: 0;
    font-size: 26px;
    line-height: 1.22;
}

.application-success p {
    margin: 12px 0 22px;
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.7;
}

.application-success__confirm {
    width: 100%;
    min-height: 46px;
    border: 0;
    border-radius: 14px;
    color: #fff;
    background: linear-gradient(135deg, #006ce6, #4c8dff);
    font-weight: 800;
    cursor: pointer;
    box-shadow: 0 18px 42px rgba(0, 108, 230, 0.28);
}

@media (max-width: 720px) {
    .application-modal {
        padding: 10px;
    }

    .application-modal__panel {
        max-height: calc(100vh - 20px);
        padding: 16px;
        border-radius: 18px;
    }

    .application-modal__header {
        padding-right: 42px;
        margin-bottom: 12px;
    }

    .application-form {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 9px;
    }

    .application-modal__header h2 {
        font-size: 22px;
    }

    .application-modal__header p {
        font-size: 12px;
        line-height: 1.45;
    }

    .application-form input,
    .application-form select,
    .application-form textarea {
        min-height: 38px;
        padding: 8px 10px;
        font-size: 13px;
        border-radius: 11px;
    }

    .application-form textarea {
        height: 58px;
    }

    .application-form__submit {
        width: 100%;
        min-height: 42px;
    }

    .application-success {
        padding: 16px;
    }

    .application-success__card {
        padding: 24px 20px;
        border-radius: 18px;
    }

    .application-success h3 {
        font-size: 22px;
    }
}