/* ============================================================
 * 悦互动官网 - 样式文件
 * 文件: css/style.css
 * 悦多网络版权所有 © YueDuo Network. All Rights Reserved.
 * ============================================================ */

/* ========================================
   截图互动Pro - 科技运营风官网样式
   配色：纯白底色 + 科技蓝主色 + 红/橙强调色
   ======================================== */

/* CSS Variables */
:root {
    /* 品牌色 */
    --color-primary: #2563EB;
    --color-primary-dark: #1D4ED8;
    --color-primary-light: #DBEAFE;
    --color-primary-bg: #EFF6FF;
    
    /* 强调色 */
    --color-accent: #F97316;
    --color-accent-dark: #EA580C;
    --color-accent-light: #FFF7ED;
    --color-red: #EF4444;
    --color-red-light: #FEF2F2;
    
    /* 中性色 */
    --color-white: #FFFFFF;
    --color-bg: #F8FAFC;
    --color-bg-warm: #FAFAF9;
    --color-border: #E2E8F0;
    --color-border-light: #F1F5F9;
    
    /* 文字色 */
    --color-text: #0F172A;
    --color-text-secondary: #475569;
    --color-text-muted: #94A3B8;
    --color-text-placeholder: #CBD5E1;
    
    /* 功能色 */
    --color-success: #10B981;
    --color-success-light: #ECFDF5;
    --color-purple: #8B5CF6;
    --color-purple-light: #F5F3FF;
    --color-pink: #EC4899;
    --color-pink-light: #FDF2F8;
    
    /* 阴影 */
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.06), 0 2px 4px -2px rgba(15, 23, 42, 0.04);
    --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.06), 0 4px 6px -4px rgba(15, 23, 42, 0.04);
    --shadow-card: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
    
    /* 圆角 */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;
    
    /* 间距 */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;
    --space-16: 64px;
    --space-20: 80px;
    
    /* 字体 */
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
    --font-mono: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", Consolas, monospace;
    
    /* 过渡 */
    --transition-fast: 0.15s ease;
    --transition-base: 0.25s ease;
    --transition-slow: 0.4s ease;
    
    /* 容器 */
    --container-max: 1200px;
    --container-padding: 24px;
}

/* Reset */
*, *::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: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-white);
}

a {
    color: inherit;
    text-decoration: none;
}

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

ul, ol {
    list-style: none;
}

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

/* Utility */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

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

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, #4F46E5 100%);
    color: var(--color-white);
    border: none;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, #4338CA 100%);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.35);
}

.btn-accent {
    background: var(--color-accent);
    color: var(--color-white);
    border: 1px solid var(--color-accent);
}

.btn-accent:hover {
    background: var(--color-accent-dark);
    border-color: var(--color-accent-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(249, 115, 22, 0.3);
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
    font-weight: 500;
}

.btn-ghost:hover {
    color: var(--color-primary);
    background: var(--color-primary-bg);
    border-color: var(--color-primary-light);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
}

.btn-outline:hover {
    background: var(--color-primary-bg);
}

.btn-white {
    background: var(--color-white);
    color: var(--color-primary);
    border: 1px solid var(--color-white);
}

.btn-white:hover {
    background: var(--color-primary-bg);
}

.btn-lg {
    padding: 14px 28px;
    font-size: 15px;
    border-radius: var(--radius-md);
}

.btn-block {
    width: 100%;
}

.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.btn-icon:hover {
    background: var(--color-bg);
    color: var(--color-text);
}

.btn-icon svg {
    width: 18px;
    height: 18px;
}

/* ========================================
   Gradient Title
   ======================================== */
.gradient-title {
    background: linear-gradient(135deg, #2563EB 0%, #7C3AED 50%, #EC4899 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ========================================
   Header & Navigation
   ======================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: #fff;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border-light);
    transition: all var(--transition-base);
}

.site-header.scrolled {
    box-shadow: var(--shadow-sm);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    gap: var(--space-2);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-weight: 700;
    font-size: 16px;
    color: var(--color-text);
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 2px;
}

.nav-link {
    padding: 8px 14px;
    font-size: 14px;
    color: var(--color-text-secondary);
    border-radius: var(--radius-md);
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-purple));
    border-radius: 1px;
    transition: width 0.3s cubic-bezier(0.22, 1, 0.36, 1), left 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

.nav-link:hover {
    color: var(--color-primary);
    background: var(--color-primary-bg);
}

.nav-link:hover::after {
    width: calc(100% - 28px);
    left: 14px;
}

.nav-link.active {
    color: var(--color-primary);
    font-weight: 600;
    background: var(--color-primary-bg);
}

.nav-link.active::after {
    width: calc(100% - 28px);
    left: 14px;
}

.nav-highlight {
    color: var(--color-accent) !important;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.nav-highlight:hover {
    background: var(--color-accent-light) !important;
}

.nav-highlight .sparkle {
    width: 14px;
    height: 14px;
    animation: sparkleSpin 2.5s ease-in-out infinite;
}

@keyframes sparkleSpin {
    0%, 100% { transform: rotate(0deg) scale(1); }
    25% { transform: rotate(45deg) scale(1.2); }
    50% { transform: rotate(90deg) scale(1); }
    75% { transform: rotate(135deg) scale(1.2); }
}

.nav-highlight::after {
    background: linear-gradient(90deg, var(--color-accent), #FBBF24);
}

.nav-highlight:hover::after,
.nav-highlight.active::after {
    background: linear-gradient(90deg, var(--color-accent), #FBBF24);
}

.logo-img {
    width: 160px;
    height: 40px;
    display: block;
}

.mobile-highlight {
    color: var(--color-accent) !important;
    font-weight: 600;
}

.header-phone {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-primary);
    letter-spacing: 0.02em;
    padding: 6px 10px;
    background: var(--color-primary-bg);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.header-phone:hover {
    background: var(--color-primary-light);
}

.header-phone svg {
    width: 15px;
    height: 15px;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.header-actions .btn {
    padding: 8px 18px;
    font-size: 13px;
    font-weight: 500;
    border-radius: var(--radius-md);
    height: 36px;
}

.mobile-menu-toggle {
    display: none;
    width: 36px;
    height: 36px;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
    color: var(--color-text);
    border-radius: var(--radius-md);
    position: relative;
}

.mobile-menu-toggle:hover {
    background: var(--color-bg);
}

.hamburger-line {
    display: block;
    width: 20px;
    height: 2px;
    background: currentColor;
    border-radius: 2px;
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: center;
}

.mobile-menu-toggle.active .hamburger-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-4);
    z-index: 999;
    box-shadow: var(--shadow-lg);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1),
                opacity 0.35s ease;
}

.mobile-menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
}

.mobile-menu .mobile-nav-link,
.mobile-menu .mobile-actions {
    opacity: 0;
    transform: translateX(-16px);
    transition: opacity 0.35s ease, transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

.mobile-menu.open .mobile-nav-link,
.mobile-menu.open .mobile-actions {
    opacity: 1;
    transform: translateX(0);
}

.mobile-menu.open .mobile-nav-link:nth-child(1) { transition-delay: 0.05s; }
.mobile-menu.open .mobile-nav-link:nth-child(2) { transition-delay: 0.10s; }
.mobile-menu.open .mobile-nav-link:nth-child(3) { transition-delay: 0.15s; }
.mobile-menu.open .mobile-nav-link:nth-child(4) { transition-delay: 0.20s; }
.mobile-menu.open .mobile-nav-link:nth-child(5) { transition-delay: 0.25s; }
.mobile-menu.open .mobile-nav-link:nth-child(6) { transition-delay: 0.30s; }
.mobile-menu.open .mobile-nav-link:nth-child(7) { transition-delay: 0.35s; }
.mobile-menu.open .mobile-actions { transition-delay: 0.40s; }

.mobile-nav-link {
    display: block;
    padding: 12px 0;
    font-size: 15px;
    color: var(--color-text);
    border-bottom: 1px solid var(--color-border-light);
}

.mobile-nav-link:hover {
    color: var(--color-primary);
}

.mobile-actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin-top: var(--space-4);
}

/* ========================================
   Hero Section - Tech Background
   ======================================== */
.hero {
    position: relative;
    padding: 140px 0 180px;
    overflow: hidden;
    background: #F0F4FA;
}

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
    z-index: 0;
}

/* ===== 科技网格背景 ===== */
.hero-grid {
    position: absolute;
    inset: 0;
    z-index: 0;
    background-image:
        linear-gradient(rgba(59, 130, 246, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59, 130, 246, 0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    animation: gridPulse 8s ease-in-out infinite;
}

@keyframes gridPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

/* ===== 彩色光晕层 ===== */
.hero-glows {
    position: absolute;
    inset: 0;
    z-index: 1;
}

.hero-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    pointer-events: none;
}

.hero-glow-1 {
    width: 600px;
    height: 500px;
    background: radial-gradient(ellipse, rgba(59, 130, 246, 0.55) 0%, transparent 65%);
    top: -8%;
    right: -5%;
    animation: glowDrift1 10s ease-in-out infinite;
}

.hero-glow-2 {
    width: 500px;
    height: 550px;
    background: radial-gradient(ellipse, rgba(139, 92, 246, 0.5) 0%, transparent 65%);
    bottom: 0%;
    left: -8%;
    animation: glowDrift2 12s ease-in-out infinite;
}

.hero-glow-3 {
    width: 400px;
    height: 400px;
    background: radial-gradient(ellipse, rgba(6, 182, 212, 0.45) 0%, transparent 65%);
    top: 30%;
    left: 30%;
    animation: glowDrift3 14s ease-in-out infinite;
}

.hero-glow-4 {
    width: 350px;
    height: 300px;
    background: radial-gradient(ellipse, rgba(236, 72, 153, 0.35) 0%, transparent 65%);
    bottom: 15%;
    right: 15%;
    animation: glowDrift1 11s ease-in-out infinite;
    animation-delay: -4s;
}

.hero-glow-5 {
    width: 300px;
    height: 350px;
    background: radial-gradient(ellipse, rgba(99, 102, 241, 0.4) 0%, transparent 65%);
    top: 8%;
    left: 12%;
    animation: glowDrift2 16s ease-in-out infinite;
    animation-delay: -8s;
}

.hero-glow-6 {
    width: 450px;
    height: 350px;
    background: radial-gradient(ellipse, rgba(37, 99, 235, 0.3) 0%, transparent 65%);
    bottom: 25%;
    right: 35%;
    animation: glowDrift3 13s ease-in-out infinite;
    animation-delay: -6s;
}

@keyframes glowDrift1 {
    0%, 100% { transform: translate(0, 0) scale(1) rotate(0deg); }
    25% { transform: translate(-60px, 40px) scale(1.2) rotate(5deg); }
    50% { transform: translate(-30px, -50px) scale(1.1) rotate(-3deg); }
    75% { transform: translate(40px, -20px) scale(1.15) rotate(2deg); }
}

@keyframes glowDrift2 {
    0%, 100% { transform: translate(0, 0) scale(1) rotate(0deg); }
    33% { transform: translate(50px, -60px) scale(1.15) rotate(-4deg); }
    66% { transform: translate(-40px, 30px) scale(1.25) rotate(3deg); }
}

@keyframes glowDrift3 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(-50px, -40px) scale(1.3); }
}

/* ===== 毛玻璃层 ===== */
.hero-glass {
    position: absolute;
    inset: 0;
    z-index: 2;
    background: rgba(255, 255, 255, 0.65);
    backdrop-filter: blur(20px) saturate(160%);
    -webkit-backdrop-filter: blur(20px) saturate(160%);
}

/* ===== 发光圆球 ===== */
.glass-orb {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.35);
    border: 1px solid rgba(255, 255, 255, 0.5);
    box-shadow:
        inset 0 1px 2px rgba(255, 255, 255, 0.9),
        0 0 20px rgba(59, 130, 246, 0.15),
        0 0 60px rgba(139, 92, 246, 0.1);
    z-index: 3;
    pointer-events: none;
}

.glass-orb::after {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: 50%;
    background: conic-gradient(from 0deg, transparent, rgba(59, 130, 246, 0.3), transparent, rgba(139, 92, 246, 0.2), transparent);
    animation: orbSpin 8s linear infinite;
    opacity: 0.6;
}

.glass-orb-1 {
    width: 200px;
    height: 200px;
    top: 10%;
    left: 4%;
    animation: orbFloat1 18s ease-in-out infinite;
}

.glass-orb-2 {
    width: 120px;
    height: 120px;
    top: 50%;
    left: 20%;
    animation: orbFloat2 22s ease-in-out infinite;
}

.glass-orb-3 {
    width: 160px;
    height: 160px;
    top: 15%;
    right: 15%;
    animation: orbFloat3 20s ease-in-out infinite;
}

.glass-orb-4 {
    width: 80px;
    height: 80px;
    top: 60%;
    right: 10%;
    animation: orbFloat1 15s ease-in-out infinite;
    animation-delay: -5s;
}

.glass-orb-5 {
    width: 110px;
    height: 110px;
    top: 35%;
    left: 48%;
    animation: orbFloat2 25s ease-in-out infinite;
    animation-delay: -8s;
}

.glass-orb-6 {
    width: 65px;
    height: 65px;
    top: 5%;
    left: 40%;
    animation: orbFloat3 14s ease-in-out infinite;
    animation-delay: -3s;
}

@keyframes orbSpin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes orbFloat1 {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    25% { transform: translate(30px, -35px) rotate(8deg); }
    50% { transform: translate(-20px, 18px) rotate(-5deg); }
    75% { transform: translate(15px, -10px) rotate(3deg); }
}

@keyframes orbFloat2 {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(-35px, 25px) rotate(-7deg); }
    66% { transform: translate(18px, -15px) rotate(5deg); }
}

@keyframes orbFloat3 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(20px, -25px) scale(1.12); }
}

/* ===== 浮动粒子 ===== */
.hero-particles {
    position: absolute;
    inset: 0;
    z-index: 4;
    pointer-events: none;
}

.hero-particle {
    position: absolute;
    width: 3px;
    height: 3px;
    background: rgba(59, 130, 246, 0.5);
    border-radius: 50%;
    box-shadow: 0 0 6px rgba(59, 130, 246, 0.4);
    animation: particleFloat linear infinite;
}

.hero-particle:nth-child(1) { left: 10%; top: 20%; animation-duration: 15s; animation-delay: 0s; }
.hero-particle:nth-child(2) { left: 25%; top: 60%; animation-duration: 18s; animation-delay: -3s; background: rgba(139, 92, 246, 0.5); box-shadow: 0 0 6px rgba(139, 92, 246, 0.4); }
.hero-particle:nth-child(3) { left: 40%; top: 30%; animation-duration: 12s; animation-delay: -6s; background: rgba(6, 182, 212, 0.5); box-shadow: 0 0 6px rgba(6, 182, 212, 0.4); }
.hero-particle:nth-child(4) { left: 55%; top: 70%; animation-duration: 20s; animation-delay: -9s; }
.hero-particle:nth-child(5) { left: 70%; top: 15%; animation-duration: 16s; animation-delay: -4s; background: rgba(236, 72, 153, 0.4); box-shadow: 0 0 6px rgba(236, 72, 153, 0.3); }
.hero-particle:nth-child(6) { left: 85%; top: 50%; animation-duration: 14s; animation-delay: -7s; background: rgba(99, 102, 241, 0.5); box-shadow: 0 0 6px rgba(99, 102, 241, 0.4); }
.hero-particle:nth-child(7) { left: 15%; top: 80%; animation-duration: 17s; animation-delay: -2s; }
.hero-particle:nth-child(8) { left: 60%; top: 40%; animation-duration: 13s; animation-delay: -5s; background: rgba(6, 182, 212, 0.5); box-shadow: 0 0 6px rgba(6, 182, 212, 0.4); }
.hero-particle:nth-child(9) { left: 35%; top: 10%; animation-duration: 19s; animation-delay: -8s; background: rgba(139, 92, 246, 0.5); box-shadow: 0 0 6px rgba(139, 92, 246, 0.4); }
.hero-particle:nth-child(10) { left: 80%; top: 85%; animation-duration: 11s; animation-delay: -1s; }

@keyframes particleFloat {
    0% { transform: translateY(0) translateX(0); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(-120px) translateX(40px); opacity: 0; }
}

.hero-inner {
    position: relative;
    z-index: 5;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: 6px 14px;
    background: var(--color-red-light);
    border: 1px solid #FECACA;
    border-radius: var(--radius-full);
    font-size: 13px;
    color: var(--color-red);
    margin-bottom: var(--space-5);
    width: fit-content;
}

.badge-hot {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    background: var(--color-red);
    color: var(--color-white);
    font-size: 11px;
    font-weight: 700;
    border-radius: var(--radius-full);
}

.hero-title {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.15;
    color: var(--color-text);
    margin-bottom: var(--space-5);
    letter-spacing: -0.02em;
}

.hero-desc {
    font-size: 17px;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-8);
    max-width: 480px;
}

.hero-actions {
    display: flex;
    gap: var(--space-4);
    margin-bottom: var(--space-10);
}

.hero-stats {
    display: flex;
    gap: var(--space-10);
}

.stat-item {
    text-align: left;
}

.stat-num {
    font-size: 32px;
    font-weight: 800;
    color: var(--color-text);
    line-height: 1;
    margin-bottom: var(--space-1);
}

.stat-num span {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-primary);
}

.stat-label {
    font-size: 13px;
    color: var(--color-text-muted);
}

/* Hero Visual */
.hero-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    max-width: 520px;
}

/* Hero Carousel */
.hero-carousel {
    position: relative;
    width: 100%;
    overflow: hidden;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.carousel-track {
    position: relative;
    width: 100%;
    aspect-ratio: 720 / 450;
}

.carousel-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transform: translateX(80px) scale(0.95);
    transition: opacity var(--carousel-transition, 650ms) cubic-bezier(0.22, 1, 0.36, 1),
                transform var(--carousel-transition, 650ms) cubic-bezier(0.22, 1, 0.36, 1);
    pointer-events: none;
    z-index: 1;
}

.carousel-slide.active {
    opacity: 1;
    transform: translateX(0) scale(1);
    pointer-events: auto;
    z-index: 2;
}

.carousel-slide.exit {
    opacity: 0;
    transform: translateX(-60px) scale(0.92);
    z-index: 1;
}

.carousel-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    border-radius: var(--radius-lg);
}

.carousel-indicators {
    position: absolute;
    bottom: 12px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 10;
    padding: 6px 12px;
    background: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(4px);
    border-radius: var(--radius-full);
}

.indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    border: none;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 0;
}

.indicator:hover {
    background: rgba(255, 255, 255, 0.7);
}

.indicator.active {
    width: 24px;
    border-radius: var(--radius-full);
    background: var(--color-white);
}

/* Carousel Barrage */
.carousel-barrage {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
    z-index: 5;
    border-radius: var(--radius-lg);
}

.carousel-barrage .barrage-item {
    position: absolute;
    left: 100%;
    padding: 5px 14px;
    font-size: 13px;
    font-weight: 500;
    color: white;
    border-radius: var(--radius-full);
    white-space: nowrap;
    animation: barrageMove linear forwards;
    opacity: 0.92;
}

@keyframes barrageMove {
    0% {
        transform: translateX(0);
        opacity: 0.92;
    }
    100% {
        transform: translateX(-600px);
        opacity: 0;
    }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

/* ========================================
   Trust Bar - iOS Glass Cards (merged into hero bg)
   ======================================== */
.trust-bar {
    margin-top: -140px;
    padding: var(--space-6) 0 var(--space-10);
    background: transparent;
    position: relative;
    z-index: 10;
}

.trust-items {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-4);
}

.trust-item {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    padding: var(--space-5) var(--space-6);
    transition: all var(--transition-base);
    position: relative;
    background: rgba(255, 255, 255, 0.55);
    border: 1px solid rgba(255, 255, 255, 0.7);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(16px) saturate(160%);
    -webkit-backdrop-filter: blur(16px) saturate(160%);
    box-shadow: 0 4px 24px rgba(59, 130, 246, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.trust-item:hover {
    background: rgba(255, 255, 255, 0.75);
    border-color: rgba(255, 255, 255, 0.9);
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(59, 130, 246, 0.12), inset 0 1px 0 rgba(255, 255, 255, 1);
}

.trust-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    flex-shrink: 0;
}

.trust-icon svg {
    width: 18px;
    height: 18px;
}

.trust-icon-green {
    background: var(--color-success-light);
    color: #059669;
}

.trust-icon-blue {
    background: var(--color-primary-bg);
    color: var(--color-primary);
}

.trust-icon-orange {
    background: var(--color-accent-light);
    color: var(--color-accent-dark);
}

.trust-icon-purple {
    background: var(--color-purple-light);
    color: #7C3AED;
}

.trust-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.trust-text strong {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text);
    letter-spacing: 0.02em;
    transition: color var(--transition-fast);
}

.trust-text span {
    font-size: 13px;
    color: var(--color-text-muted);
    line-height: 1.4;
    transition: color var(--transition-fast);
}

.trust-item:hover .trust-text strong {
    color: var(--color-primary);
}

.trust-item:hover .trust-text span {
    color: var(--color-text-secondary);
}

/* ========================================
   Sections Common
   ======================================== */
.section {
    padding: 88px 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-12);
}

.section-title {
    font-size: 36px;
    font-weight: 800;
    color: var(--color-text);
    margin-bottom: var(--space-4);
    letter-spacing: -0.01em;
}

.section-subtitle {
    font-size: 16px;
    color: var(--color-text-secondary);
    max-width: 500px;
    margin: 0 auto;
}

.section-action {
    text-align: center;
    margin-top: var(--space-10);
}

/* Section Dividers */
.section-divider {
    height: 1px;
    max-width: var(--container-max);
    margin: 0 auto;
}

.divider-blue {
    background: linear-gradient(90deg, transparent, #BFDBFE, transparent);
}

.divider-purple {
    background: linear-gradient(90deg, transparent, #DDD6FE, transparent);
}

/* ========================================
   Products Section
   ======================================== */
.section-products {
    background: var(--color-white);
}

.category-tabs {
    display: flex;
    justify-content: center;
    gap: var(--space-2);
    margin-bottom: var(--space-8);
    flex-wrap: wrap;
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-secondary);
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    cursor: pointer;
}

.tab-btn svg {
    width: 16px;
    height: 16px;
}

.tab-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.tab-btn.active {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.4s ease;
}

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

/* Product Grid */
.product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-5);
}

.product-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-card);
}

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

.product-img {
    aspect-ratio: 400 / 200;
    width: 100%;
    overflow: hidden;
    background: var(--color-bg);
}

.product-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform var(--transition-base);
}

.product-card:hover .product-img img {
    transform: scale(1.03);
}

.product-info {
    padding: var(--space-3);
}

.product-info h3 {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-1);
}

.product-info p {
    font-size: 13px;
    color: var(--color-text-muted);
    line-height: 1.6;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}


/* ========================================
   Pricing Section
   ======================================== */
.section-pricing {
    background: var(--color-bg);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-5);
}

.pricing-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    position: relative;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-card);
}

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.pricing-card.pricing-recommended {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 2px var(--color-accent-light), var(--shadow-md);
}

.pricing-badge {
    position: absolute;
    top: -1px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: var(--space-1);
    padding: 6px 16px;
    background: var(--color-accent);
    color: var(--color-white);
    font-size: 12px;
    font-weight: 600;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
}

.pricing-badge svg {
    width: 14px;
    height: 14px;
}

.pricing-header {
    text-align: center;
    margin-bottom: var(--space-5);
    margin-top: var(--space-3);
}

.pricing-header h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--space-1);
}

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

.pricing-price {
    text-align: center;
    margin-bottom: var(--space-6);
}

.price-symbol {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-text);
    vertical-align: top;
}

.price-num {
    font-size: 40px;
    font-weight: 800;
    color: var(--color-text);
    line-height: 1;
}

.pricing-recommended .price-num {
    color: var(--color-accent);
}

.price-unit {
    font-size: 14px;
    color: var(--color-text-muted);
}

.pricing-features {
    margin-bottom: var(--space-6);
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: 8px 0;
    font-size: 14px;
    color: var(--color-text-secondary);
}

.pricing-features li.disabled {
    color: var(--color-text-placeholder);
}

.pricing-features li svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.pricing-features li:not(.disabled) svg {
    color: var(--color-success);
}

.pricing-features li.disabled svg {
    color: var(--color-text-placeholder);
}

/* ========================================
   Why Section
   ======================================== */
.section-why {
    background: var(--color-white);
    position: relative;
    overflow: hidden;
}

.why-meteor-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-5);
}

.why-card {
    position: relative;
    padding: var(--space-6) var(--space-5);
    background: linear-gradient(145deg, var(--color-white) 0%, #F8FAFF 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all 0.4s cubic-bezier(0.22, 1, 0.36, 1);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    z-index: 1;
}

.why-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--card-accent), transparent);
    opacity: 0.7;
    transition: opacity var(--transition-base), height var(--transition-base);
}

.why-card::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
    opacity: 0;
    transition: opacity 0.4s ease;
    box-shadow: 0 0 0 1px rgba(59, 130, 246, 0.1), 0 8px 32px rgba(59, 130, 246, 0.08);
    pointer-events: none;
    z-index: -1;
}

.why-card:hover {
    transform: translateY(-8px);
    border-color: rgba(59, 130, 246, 0.25);
}

.why-card:hover::before {
    opacity: 1;
    height: 4px;
}

.why-card:hover::after {
    opacity: 1;
}

.why-num {
    position: absolute;
    top: var(--space-3);
    right: var(--space-4);
    font-size: 48px;
    font-weight: 800;
    color: var(--color-text-placeholder);
    letter-spacing: 0.02em;
    font-family: var(--font-mono);
    line-height: 1;
    opacity: 0.12;
    transition: opacity 0.4s ease, color 0.4s ease;
}

.why-card:hover .why-num {
    opacity: 0.2;
    color: var(--card-accent);
}

.why-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-4);
    border-radius: 14px;
    transition: all 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.why-icon svg {
    width: 28px;
    height: 28px;
    stroke-width: 2;
    transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.why-card:hover .why-icon {
    border-radius: 50%;
    transform: scale(1.05);
}

.why-card:hover .why-icon svg {
    transform: scale(1.15) rotate(-5deg);
}

.why-icon-blue {
    color: var(--color-primary);
    background: var(--color-primary-bg);
}

.why-icon-orange {
    color: var(--color-accent);
    background: var(--color-accent-light);
}

.why-icon-green {
    color: var(--color-success);
    background: var(--color-success-light);
}

.why-icon-purple {
    color: var(--color-purple);
    background: var(--color-purple-light);
}

.why-card h3 {
    font-size: 19px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--space-2);
    letter-spacing: -0.01em;
}

.why-card p {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.75;
}

/* Why cards accent colors */
.why-card:nth-child(1) { --card-accent: var(--color-primary); }
.why-card:nth-child(2) { --card-accent: var(--color-accent); }
.why-card:nth-child(3) { --card-accent: var(--color-success); }
.why-card:nth-child(4) { --card-accent: var(--color-purple); }

/* Scroll reveal animation */
.why-card {
    opacity: 0;
    transform: translateY(30px);
}

.why-card.visible {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s cubic-bezier(0.22, 1, 0.36, 1), transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.why-card.visible:nth-child(1) { transition-delay: 0s; }
.why-card.visible:nth-child(2) { transition-delay: 0.1s; }
.why-card.visible:nth-child(3) { transition-delay: 0.2s; }
.why-card.visible:nth-child(4) { transition-delay: 0.3s; }

/* ========================================
   Scenes Section
   ======================================== */
.section-scenes {
    background: linear-gradient(135deg, #f0f7ff 0%, #f5f0ff 50%, #fff0f7 100%);
    position: relative;
    overflow: hidden;
}
.section-scenes::before {
    content: '';
    position: absolute;
    top: -30%;
    left: -10%;
    width: 50%;
    height: 80%;
    background: radial-gradient(ellipse, rgba(37,99,235,0.10) 0%, transparent 70%);
    pointer-events: none;
}
.section-scenes::after {
    content: '';
    position: absolute;
    bottom: -20%;
    right: -10%;
    width: 45%;
    height: 70%;
    background: radial-gradient(ellipse, rgba(139,92,246,0.08) 0%, transparent 70%);
    pointer-events: none;
}

.scene-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-5);
}

.scene-card {
    background: rgba(255, 255, 255, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.22, 1, 0.36, 1);
    box-shadow: 0 4px 20px -4px rgba(15, 23, 42, 0.06);
    backdrop-filter: blur(16px) saturate(1.6);
    -webkit-backdrop-filter: blur(16px) saturate(1.6);
}

.scene-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 32px -8px rgba(15, 23, 42, 0.12);
    border-color: rgba(37, 99, 235, 0.3);
    background: rgba(255, 255, 255, 0.75);
}

.section-scenes .section-title,
.section-scenes .section-subtitle {
    color: var(--color-text);
}

.scene-body {
    padding: var(--space-3) var(--space-4) var(--space-4);
    background: transparent;
}

.scene-meta {
    font-size: 11px;
    font-weight: 500;
    color: var(--color-text-muted);
    margin-bottom: var(--space-1);
    letter-spacing: 0.02em;
}

.scene-card h3 {
    font-size: 15px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--space-1);
    line-height: 1.35;
    letter-spacing: -0.01em;
}

.scene-card p {
    font-size: 12px;
    color: var(--color-text-secondary);
    line-height: 1.55;
    margin-bottom: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.scene-img {
    height: 180px;
    overflow: hidden;
}

.scene-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.scene-card:hover .scene-img img {
    transform: scale(1.05);
}

.scene-more {
    text-align: center;
    margin-top: var(--space-10);
}

/* ========================================
   Partner Logos Section
   ======================================== */
.partner-section {
    padding: var(--space-12) 0;
    background: var(--color-white);
    border-top: 1px solid var(--color-border-light);
}
.partner-header {
    text-align: center;
    margin-bottom: var(--space-8);
}
.partner-header h2 {
    font-size: 36px;
    font-weight: 800;
    color: var(--color-text);
    margin-bottom: var(--space-3);
}
.partner-header p {
    font-size: 15px;
    color: var(--color-text-muted);
}
.partner-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: var(--space-6);
    align-items: center;
    justify-items: center;
}
.partner-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    background: var(--color-bg);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
    width: 100%;
    max-width: 180px;
    aspect-ratio: 200 / 80;
    overflow: hidden;
}
.partner-logo:hover {
    border-color: var(--color-primary-light);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}
.partner-logo img {
    width: 100%;
    height: 100%;
    object-fit: fill;
    display: block;
}

@media (max-width: 768px) {
    .partner-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-4);
    }
    .partner-logo {
        max-width: 120px;
        padding: 0;
    }
    .partner-logo img {
        width: 100%;
        height: 100%;
        object-fit: fill;
    }
    .partner-header h2 {
        font-size: 24px;
    }
}

/* ========================================
   CTA Section
   ======================================== */
.section-cta {
    padding: var(--space-12) 0;
    background: var(--color-white);
}

.cta-box {
    background: linear-gradient(135deg, var(--color-primary) 0%, #1E40AF 100%);
    border-radius: var(--radius-xl);
    padding: var(--space-16) var(--space-10);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-box::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 50%, rgba(255,255,255,0.08) 0%, transparent 50%);
    pointer-events: none;
}

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

.cta-content h2 {
    font-size: 32px;
    font-weight: 800;
    color: var(--color-white);
    margin-bottom: var(--space-3);
}

.cta-content p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: var(--space-8);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
}

/* ========================================
   Footer
   ======================================== */
.site-footer {
    background: var(--color-white);
    border-top: 1px solid var(--color-border);
    padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
    gap: var(--space-10);
    margin-bottom: var(--space-10);
}

.footer-brand .logo {
    margin-bottom: var(--space-4);
}

.footer-desc {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-5);
    max-width: 280px;
}

.footer-contact p {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 14px;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2);
}

.footer-contact svg {
    width: 16px;
    height: 16px;
    color: var(--color-text-muted);
}

.footer-brand-line {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-top: var(--space-3);
    margin-bottom: 0;
}

/* 悦多网络版权所有 */

.footer-brand-line svg {
    width: 16px;
    height: 16px;
    color: var(--color-text-muted);
    flex-shrink: 0;
}

.footer-brand-text {
    font-size: 14px;
    font-weight: 600;
    background: linear-gradient(135deg, #2563EB 0%, #7C3AED 50%, #EC4899 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-links h4 {
    font-size: 14px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--space-4);
}

.footer-links a {
    display: block;
    font-size: 14px;
    color: var(--color-text-secondary);
    padding: 6px 0;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    text-align: center;
    padding-top: var(--space-6);
    border-top: 1px solid var(--color-border);
}

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

/* ========================================
   Footer Friendlinks
   ======================================== */
.footer-friendlinks {
    margin-bottom: var(--space-10);
}

.footer-friendlinks h4 {
    font-size: 14px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--space-5);
}

.friendlinks-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-start;
    gap: 10px var(--space-5);
    align-items: center;
}

.friendlinks-list a {
    font-size: 13px;
    color: var(--color-text-muted);
    transition: all var(--transition-fast);
    line-height: 1.8;
    white-space: nowrap;
}

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

@media (max-width: 768px) {
    .friendlinks-list {
        gap: 8px var(--space-4);
    }

    .friendlinks-list a {
        font-size: 12px;
    }
}


/* ========================================
   Responsive
   ======================================== */
@media (max-width: 1024px) {
    .hero-inner {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--space-10);
    }
    
    .hero-content {
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    
    .hero-desc {
        max-width: 100%;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .product-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .why-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .scene-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --container-padding: 16px;
    }
    
    .main-nav {
        display: none;
    }
    
    .header-actions .btn {
        display: none;
    }
    
    .header-inner {
        position: relative;
    }
    
    .header-phone {
        display: flex;
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
        font-size: 12px;
        padding: 4px 8px;
        white-space: nowrap;
    }
    
    .logo-img {
        width: 100px;
        height: auto;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .mobile-menu {
        display: block;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-visual {
        display: none;
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
        max-width: 280px;
    }
    
    .hero-stats {
        gap: var(--space-6);
    }
    
    .section {
        padding: var(--space-12) 0;
    }
    
    .section-title {
        font-size: 24px;
    }
    
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 360px;
        margin: 0 auto;
    }
    
    .why-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .scene-grid {
        grid-template-columns: 1fr;
    }
    
    .trust-items {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-4);
    }
    
    .category-tabs {
        gap: var(--space-2);
    }
    
    .tab-btn {
        padding: 8px 14px;
        font-size: 13px;
    }
    
    .cta-box {
        padding: var(--space-10) var(--space-5);
    }
    
    .cta-content h2 {
        font-size: 24px;
    }
    
    .cta-actions {
        flex-direction: column;
        max-width: 280px;
        margin: 0 auto;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }
    
    .trust-bar {
        margin-top: 0;
        padding: var(--space-6) 0 var(--space-8);
    }
    
    /* Hero背景手机端适配 */
    .hero-grid {
        background-size: 40px 40px;
        opacity: 0.5;
    }
    
    .hero-glow {
        filter: blur(40px);
    }
    
    .hero-glow-1 {
        width: 300px;
        height: 250px;
    }
    
    .hero-glow-2 {
        width: 250px;
        height: 280px;
    }
    
    .hero-glow-3 {
        width: 200px;
        height: 200px;
    }
    
    .hero-glow-4 {
        width: 180px;
        height: 150px;
    }
    
    .hero-glow-5 {
        width: 150px;
        height: 180px;
    }
    
    .hero-glow-6 {
        width: 220px;
        height: 180px;
    }
    
    .glass-orb {
        display: none;
    }
    
    .hero-particles {
        display: none;
    }
    
    .hero-glass {
        background: rgba(255, 255, 255, 0.78);
        backdrop-filter: blur(16px) saturate(140%);
        -webkit-backdrop-filter: blur(16px) saturate(140%);
    }
}

@media (max-width: 480px) {
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-3);
    }
    
    .trust-items {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-3);
    }
    
    .trust-item {
        padding: var(--space-3) var(--space-4);
    }
    
    .trust-icon {
        width: 32px;
        height: 32px;
    }
    
    .trust-icon svg {
        width: 16px;
        height: 16px;
    }
    
    .hero-title {
        font-size: 26px;
    }
    
    .section-title {
        font-size: 24px;
    }
    
    .partner-header h2 {
        font-size: 24px;
    }
    
    .product-img {
        aspect-ratio: 400 / 200;
    }
    
    .product-info {
        padding: var(--space-2);
    }
    
    .product-info h3 {
        font-size: 13px;
        text-align: center;
        margin-bottom: 0;
    }
    
    .product-info p {
        display: none;
    }
    
    .category-tabs {
        gap: var(--space-1);
    }
    
    .tab-btn {
        padding: 6px 10px;
        font-size: 12px;
    }
    
    .tab-btn svg {
        width: 14px;
        height: 14px;
    }
    
    .scene-body {
        padding: var(--space-4);
    }
    
    .why-card {
        padding: var(--space-5) var(--space-4);
    }
    
    .carousel-indicators {
        gap: 6px;
        padding: 4px 8px;
    }
    
    .indicator {
        width: 6px;
        height: 6px;
    }
    
    .indicator.active {
        width: 18px;
    }

    /* Mobile Hero optimization */
    .hero {
        padding: 80px 0 40px;
    }
    
    .hero-badge {
        font-size: 11px;
        padding: 4px 10px;
        margin-bottom: var(--space-3);
    }
    
    .hero-title {
        font-size: 22px;
    }
    
    .hero-desc {
        font-size: 14px;
        margin-bottom: var(--space-5);
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
        width: 100%;
        max-width: 280px;
        margin: 0 auto var(--space-6);
        gap: var(--space-2);
    }
    
    .hero-stats {
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--space-4);
    }
    
    .stat-item {
        text-align: center;
        min-width: 80px;
    }
    
    .stat-num {
        font-size: 24px;
    }
    
    .stat-label {
        font-size: 11px;
    }
    
    /* Mobile Footer optimization */
    .site-footer {
        padding: var(--space-10) 0 var(--space-6);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-5);
        margin-bottom: var(--space-6);
    }
    
    .footer-brand {
        grid-column: 1 / -1;
    }
    
    .footer-desc {
        max-width: 100%;
    }
    
    .footer-links a {
        padding: 4px 0;
    }
    
    .friendlinks-list {
        row-gap: 6px;
    }
    
    .trust-bar {
        margin-top: 0;
        padding: var(--space-4) 0 var(--space-6);
    }
}

/* Scroll animations */
@media (prefers-reduced-motion: no-preference) {
    .product-card,
    .why-card,
    .scene-card,
    .pricing-card {
        opacity: 0;
        transform: translateY(20px);
    }
    
    .product-card.visible,
    .why-card.visible,
    .scene-card.visible,
    .pricing-card.visible {
        opacity: 1;
        transform: translateY(0);
        transition: opacity 0.5s ease, transform 0.5s ease;
    }
}
/* ========================================
   页内展开视频，避免fixed弹窗被浏览器拦截
   ======================================== */
.hero-video-section {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.6s cubic-bezier(0.22, 1, 0.36, 1), padding 0.6s cubic-bezier(0.22, 1, 0.36, 1);
    padding: 0 var(--container-padding);
    background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-white) 100%);
}

.hero-video-section.expanded {
    max-height: 600px;
    padding: 0 var(--container-padding) var(--space-12);
}

.video-panel {
    max-width: 900px;
    margin: 0 auto;
}

.video-panel-border {
    position: relative;
    border-radius: var(--radius-lg);
    padding: 2px;
    background: linear-gradient(135deg, #2563EB, #06B6D4, #8B5CF6, #2563EB);
    background-size: 300% 300%;
    animation: techBorderFlow 4s ease infinite;
    box-shadow: 0 0 20px rgba(37, 99, 235, 0.15);
}

@keyframes techBorderFlow {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.video-panel-border video {
    display: block;
    width: 100%;
    height: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    border-radius: calc(var(--radius-lg) - 2px);
    background: #0F172A;
}

@media (max-width: 768px) {
    .hero-video-section.expanded {
        max-height: 400px;
    }
    .video-panel-border video {
        aspect-ratio: 16 / 10;
    }
}

/* ========================================
   Video Dialog (HTML5 native dialog)
   原生弹窗，浏览器支持，不会被安全软件拦截
   ======================================== */
.video-dialog {
    padding: 0;
    border: none;
    background: transparent;
    max-width: none;
    max-height: none;
    width: auto;
    height: auto;
    overflow: visible;
}

.video-dialog::backdrop {
    background: rgba(15, 23, 42, 0.75);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.video-dialog[open] {
    display: flex;
    align-items: center;
    justify-content: center;
    animation: dialogFadeIn 0.3s ease;
}

.video-dialog[open] .video-dialog-inner {
    animation: dialogScaleIn 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes dialogFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes dialogScaleIn {
    from { transform: scale(0.9) translateY(20px); opacity: 0; }
    to { transform: scale(1) translateY(0); opacity: 1; }
}

.video-dialog-inner {
    position: relative;
    width: 90vw;
    max-width: 900px;
}

.video-dialog-close {
    position: absolute;
    top: -48px;
    right: 0;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.15);
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    z-index: 2;
    transition: background 0.2s ease;
}

.video-dialog-close:hover {
    background: rgba(255, 255, 255, 0.3);
}

.video-dialog-close svg {
    width: 18px;
    height: 18px;
}

.video-dialog-border {
    position: relative;
    border-radius: var(--radius-lg);
    padding: 2px;
    background: linear-gradient(135deg, #2563EB, #06B6D4, #8B5CF6, #2563EB);
    background-size: 300% 300%;
    animation: techBorderFlow 4s ease infinite;
    box-shadow: 0 0 30px rgba(37, 99, 235, 0.2);
}

.video-dialog-border video {
    display: block;
    width: 100%;
    height: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    border-radius: calc(var(--radius-lg) - 2px);
    background: #0F172A;
}

@media (max-width: 768px) {
    .video-dialog-inner {
        width: 95vw;
    }
    .video-dialog-border video {
        aspect-ratio: 16 / 10;
    }
}

/* ========================================
   Back to Top Button
   ======================================== */
.float-buttons {
    position: fixed;
    right: 24px;
    bottom: 88px;
    z-index: 998;
    opacity: 0;
    transform: translateY(12px);
    pointer-events: none;
    transition: all var(--transition-base);
}

.float-buttons.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.float-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-white);
    color: var(--color-primary);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    box-shadow: var(--shadow-md);
    cursor: pointer;
    transition: all var(--transition-base);
    padding: 0;
}

.float-btn img {
    width: 20px;
    height: 20px;
    display: block;
}

.float-btn:hover {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.25);
}

.float-btn:hover img {
    filter: brightness(0) invert(1);
}

/* ========================================
   Customer Service Float Button (Always Visible)
   ======================================== */
.float-service {
    position: fixed;
    right: 24px;
    bottom: 32px;
    z-index: 999;
}

.float-service-wrap {
    position: relative;
}

.float-service-btn {
    position: relative;
    background: linear-gradient(135deg, #2563EB 0%, #7C3AED 100%);
    border: none;
    color: var(--color-white);
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}

.float-service-btn img {
    filter: brightness(0) invert(1);
}

.float-service-btn:hover {
    background: linear-gradient(135deg, #1D4ED8 0%, #6D28D9 100%);
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.45);
}

/* 脉冲动画 */
.service-pulse {
    position: absolute;
    inset: -5px;
    border-radius: 50%;
    background: linear-gradient(135deg, #2563EB 0%, #7C3AED 100%);
    opacity: 0.35;
    animation: servicePulse 2s ease-in-out infinite;
    z-index: -1;
}

@keyframes servicePulse {
    0%, 100% { transform: scale(1); opacity: 0.35; }
    50% { transform: scale(1.55); opacity: 0; }
}

/* ========================================
   客服联系卡片
   ======================================== */
.float-service-card {
    position: absolute;
    right: 56px;
    bottom: 0;
    opacity: 0;
    transform: translateX(10px) scale(0.92);
    pointer-events: none;
    transition: all 0.35s cubic-bezier(0.22, 1, 0.36, 1);
    transform-origin: right bottom;
}

.float-service-wrap:hover .float-service-card {
    opacity: 1;
    transform: translateX(0) scale(1.0);
    pointer-events: auto;
}

.float-service-card-inner {
    width: 190px;
    background: linear-gradient(#FFFFFF, #FFFFFF) padding-box,
                linear-gradient(135deg, #2563EB, #7C3AED, #EC4899) border-box;
    border: 2px solid transparent;
    border-radius: 14px;
    box-shadow: 0 20px 50px rgba(15, 23, 42, 0.12), 0 2px 8px rgba(37, 99, 235, 0.06), inset 0 1px 0 rgba(255,255,255,0.8);
    overflow: hidden;
    position: relative;
}

/* 顶部渐变装饰条 */
.service-card-accent {
    height: 3px;
    background: linear-gradient(90deg, #2563EB, #7C3AED, #EC4899);
}

/* 卡片头部 */
.service-card-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 0 8px;
    color: #1E293B;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.04em;
}

.service-card-icon {
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #2563EB 0%, #7C3AED 100%);
    border-radius: 50%;
}

.service-card-icon img {
    width: 12px;
    height: 12px;
    filter: brightness(0) invert(1);
}

/* 卡片主体 */
.service-card-body {
    padding: 0 14px 14px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* 电话区域 */
.service-card-section {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 10px 12px;
    background: #F8FAFF;
    border-radius: 10px;
    border: 1px solid #EEF2FF;
}

.service-phone-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.service-phone-item label {
    font-size: 10px;
    font-weight: 600;
    color: #94A3B8;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.service-phone-item a {
    font-size: 15px;
    font-weight: 700;
    color: #2563EB;
    letter-spacing: 0.02em;
    transition: color 0.2s ease;
}

.service-phone-item a:hover {
    color: #1D4ED8;
}

/* 二维码区域 */
.service-card-qr {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding-top: 2px;
}

.service-card-qr img {
    width: 96px;
    height: 96px;
    border-radius: 8px;
    border: 1px solid #E2E8F0;
    display: block;
    padding: 4px;
    background: #FFFFFF;
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.06);
}

.service-card-qr p {
    font-size: 11px;
    color: #94A3B8;
    font-weight: 500;
    letter-spacing: 0.02em;
}

@media (max-width: 768px) {
    .float-buttons {
        right: 16px;
        bottom: 80px;
    }
    .float-btn {
        width: 40px;
        height: 40px;
    }
    .float-btn img {
        width: 18px;
        height: 18px;
    }
    .float-service {
        right: 16px;
        bottom: 24px;
    }
    .float-service-card {
        right: 52px;
        bottom: -20px;
    }
    .float-service-card-inner {
        width: 170px;
    }
    .service-card-body {
        padding: 0 12px 12px;
        gap: 8px;
    }
    .service-card-section {
        padding: 8px 10px;
        gap: 6px;
    }
    .service-phone-item a {
        font-size: 14px;
    }
    .service-card-qr img {
        width: 88px;
        height: 88px;
    }
}

/* ========================================
   全站排版优化补丁（2026-08 整站优化）
   - 防横向溢出兜底
   - 平板/手机端字号与间距统一调整
   ======================================== */

/* 防横向溢出兜底（各页面 grid/flex 未收拢时兜底） */
html, body {
    overflow-x: hidden;
}

@media (max-width: 1024px) {
    .section {
        padding: 72px 0;
    }

    .section-title {
        font-size: 30px;
    }
}

@media (max-width: 768px) {
    body {
        font-size: 15px;
    }

    .section {
        padding: 56px 0;
    }

    .section-header {
        margin-bottom: var(--space-8);
    }

    .section-title {
        font-size: 26px;
        line-height: 1.3;
    }

    .section-subtitle {
        font-size: 14px;
        line-height: 1.7;
        padding: 0 var(--space-2);
    }

    .section-action,
    .scene-more {
        margin-top: var(--space-8);
    }

    /* hero 描述收紧，避免贴边 */
    .hero-desc {
        font-size: 15px;
        line-height: 1.7;
        max-width: 520px;
        margin-left: auto;
        margin-right: auto;
    }

    /* trust 卡片文字防贴边 */
    .trust-item {
        padding: var(--space-4);
    }

    .trust-text strong {
        font-size: 14px;
    }

    .trust-text span {
        font-size: 12px;
        line-height: 1.5;
    }

    /* CTA 区块内边距 */
    .cta-box {
        padding: var(--space-12) var(--space-6);
    }

    .cta-content p {
        font-size: 15px;
    }

    /* 页脚 */
    .site-footer {
        padding: 56px 0 var(--space-6);
    }

    .footer-desc {
        font-size: 13px;
    }

    .footer-links a {
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .section {
        padding: 48px 0;
    }

    .section-title {
        font-size: 23px;
    }

    .partner-header h2 {
        font-size: 23px;
    }

    .section-subtitle {
        font-size: 13px;
    }

    .hero-title {
        font-size: 24px;
        line-height: 1.25;
    }

    .trust-item {
        padding: var(--space-3);
        gap: var(--space-2);
    }
}

/* ========================================
   Header 导航美化升级（2026-08）
   毛玻璃 + 滚动收缩 + 渐变高亮胶囊
   ======================================== */
.site-header {
    background: rgba(255, 255, 255, 0.72);
    backdrop-filter: blur(18px) saturate(180%);
    -webkit-backdrop-filter: blur(18px) saturate(180%);
    border-bottom: 1px solid transparent;
    box-shadow: 0 1px 0 rgba(15, 23, 42, 0.04);
}

.site-header.scrolled {
    background: rgba(255, 255, 255, 0.9);
    border-bottom-color: transparent;
    box-shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
}

.header-inner {
    height: 70px;
    transition: height var(--transition-base);
}

.site-header.scrolled .header-inner {
    height: 60px;
}

/* Logo 悬浮微动效 */
.logo {
    transition: transform var(--transition-base);
}

.logo:hover {
    transform: scale(1.03);
}

.logo-img {
    transition: transform var(--transition-base);
}

/* 主导航：胶囊式排布 */
.main-nav {
    gap: 4px;
    padding: 4px;
    background: rgba(241, 245, 249, 0.6);
    border-radius: var(--radius-full);
}

.nav-link {
    padding: 8px 16px;
    font-size: 14px;
    border-radius: var(--radius-full);
    letter-spacing: 0.01em;
}

/* 下划线改为从中心展开的渐变条 */
.nav-link::after {
    bottom: 3px;
    height: 2.5px;
    border-radius: 2px;
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.9);
    box-shadow: var(--shadow-sm);
}

.nav-link.active {
    background: var(--color-white);
    box-shadow: var(--shadow-sm);
}

/* 免费试用：恢复为文字导航样式（原渐变胶囊补丁已撤除） */

.nav-highlight::after,
.nav-highlight:hover::after,
.nav-highlight.active::after {
    display: none;
}

/* 电话胶囊 */
.header-phone {
    border: 1px solid var(--color-primary-light);
    background: rgba(239, 246, 255, 0.7);
}

.header-phone:hover {
    background: var(--color-primary-light);
    transform: translateY(-1px);
}

/* 右侧按钮 */
.header-actions .btn-primary {
    border-radius: var(--radius-full);
    padding-left: 22px;
    padding-right: 22px;
}

.header-actions .btn-ghost {
    border-radius: var(--radius-full);
    border-color: transparent;
}

.header-actions .btn-ghost:hover {
    border-color: var(--color-primary-light);
}

/* 移动端菜单圆角与层次 */
.mobile-menu {
    border-bottom-left-radius: var(--radius-xl);
    border-bottom-right-radius: var(--radius-xl);
    border-bottom: none;
    box-shadow: 0 24px 48px rgba(15, 23, 42, 0.12);
}

.mobile-nav-link {
    padding: 13px 4px;
}

@media (max-width: 768px) {
    .header-inner {
        height: 60px;
    }

    .site-header.scrolled .header-inner {
        height: 60px;
    }

    .mobile-menu {
        top: 60px;
    }

    .header-phone {
        border: none;
    }
}

/* ========================================
   Header 导航重设计 v2（2026-08）
   简洁文字导航 + 右簇：登录/注册 + 最外侧电话
   ======================================== */
.header-inner {
    justify-content: flex-start;
    gap: 0;
}

/* 导航在剩余空间中居中 */
.main-nav {
    margin: 0 auto;
    padding: 0;
    background: transparent;
    border-radius: 0;
    gap: 10px;
}

/* 文字型导航链接：无胶囊底，保留下划线动效 */
.nav-link {
    padding: 8px 8px;
    border-radius: 0;
    font-weight: 500;
}

.nav-link:hover {
    background: transparent;
    box-shadow: none;
}

.nav-link.active {
    background: transparent;
    box-shadow: none;
}

.nav-link::after {
    bottom: 0;
}

/* 右侧按钮组 */
.header-actions {
    gap: 10px;
}

.header-actions .btn {
    height: 38px;
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 500;
}

/* 登录：描边胶囊 */
.header-actions .btn-ghost {
    padding: 8px 22px;
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    background: transparent;
}

.header-actions .btn-ghost:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
    background: var(--color-primary-bg);
    box-shadow: none;
}

/* 注册：渐变实心胶囊 */
.header-actions .btn-primary {
    padding: 8px 24px;
    font-weight: 600;
    box-shadow: 0 2px 10px rgba(37, 99, 235, 0.28);
}

.header-actions .btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(37, 99, 235, 0.38);
}

/* 电话：最外侧，纯文字 + 分隔线 */
.header-phone {
    background: transparent;
    border: none;
    border-radius: 0;
    padding: 4px 0 4px 20px;
    margin-left: 20px;
    border-left: 1px solid var(--color-border);
    font-size: 14px;
    color: var(--color-text);
    letter-spacing: 0.02em;
}

.header-phone:hover {
    background: transparent;
    transform: none;
    color: var(--color-primary);
}

.header-phone svg {
    color: var(--color-primary);
}

@media (max-width: 768px) {
    .header-actions {
        margin-left: auto;
    }

    .header-phone {
        border-left: none;
        margin-left: 0;
        padding: 4px 8px;
        font-size: 12px;
        color: var(--color-primary);
    }
}

/* ========================================
   经典案例区块：高端毛玻璃背景（2026-08）
   多层彩色光晕 + 细网格 + 整体雾化玻璃层
   ======================================== */
.section-scenes {
    background:
        radial-gradient(ellipse 50% 60% at 12% 8%, rgba(59, 130, 246, 0.28) 0%, transparent 65%),
        radial-gradient(ellipse 45% 55% at 88% 12%, rgba(139, 92, 246, 0.24) 0%, transparent 65%),
        radial-gradient(ellipse 40% 50% at 8% 88%, rgba(6, 182, 212, 0.20) 0%, transparent 65%),
        radial-gradient(ellipse 45% 55% at 92% 85%, rgba(249, 115, 22, 0.16) 0%, transparent 65%),
        radial-gradient(ellipse 35% 40% at 50% 50%, rgba(236, 72, 153, 0.10) 0%, transparent 70%),
        linear-gradient(160deg, #F4F7FD 0%, #F9F8FF 45%, #FFF9F5 100%);
}

/* 细腻网格纹理层 */
.section-scenes::before {
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(59, 130, 246, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59, 130, 246, 0.05) 1px, transparent 1px);
    background-size: 44px 44px;
    mask-image: radial-gradient(ellipse 80% 80% at 50% 40%, #000 30%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 40%, #000 30%, transparent 75%);
    z-index: 0;
}

/* 整体雾化玻璃层：把光晕与网格柔化成磨砂质感 */
.section-scenes::after {
    inset: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.42);
    backdrop-filter: blur(26px) saturate(160%);
    -webkit-backdrop-filter: blur(26px) saturate(160%);
    z-index: 1;
}

/* 内容浮于玻璃层之上 */
.section-scenes .container {
    position: relative;
    z-index: 2;
}

/* 案例卡片：加强玻璃拟态 */
.scene-card {
    background: rgba(255, 255, 255, 0.52);
    border: 1px solid rgba(255, 255, 255, 0.85);
    box-shadow: 0 8px 32px -8px rgba(15, 23, 42, 0.10), inset 0 1px 0 rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px) saturate(170%);
    -webkit-backdrop-filter: blur(20px) saturate(170%);
}

.scene-card:hover {
    background: rgba(255, 255, 255, 0.72);
    border-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 20px 40px -12px rgba(15, 23, 42, 0.16), inset 0 1px 0 rgba(255, 255, 255, 1);
}

@media (max-width: 768px) {
    /* 移动端降低模糊半径，保证性能 */
    .section-scenes::after {
        backdrop-filter: blur(16px) saturate(150%);
        -webkit-backdrop-filter: blur(16px) saturate(150%);
    }

    .section-scenes::before {
        background-size: 32px 32px;
    }
}


/* ========================================
   移动端 why 区块：一行两列 + 整体缩放
   ======================================== */
@media (max-width: 768px) {
    .why-grid {
        gap: 12px;
    }

    .why-card {
        padding: 16px 12px 14px;
        border-radius: 12px;
    }

    .why-num {
        top: 8px;
        right: 10px;
        font-size: 28px;
    }

    .why-icon {
        width: 38px;
        height: 38px;
        border-radius: 10px;
        margin-bottom: 10px;
    }

    .why-icon svg {
        width: 19px;
        height: 19px;
    }

    .why-card h3 {
        font-size: 14px;
        margin-bottom: 5px;
    }

    .why-card p {
        font-size: 11px;
        line-height: 1.6;
    }
}

/* ========================================
   移动端经典案例卡片：左图右文横版布局
   ======================================== */
@media (max-width: 768px) {
    .scene-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .scene-card {
        display: flex;
        align-items: stretch;
        gap: 12px;
        padding: 10px;
        border-radius: 12px;
    }

    .scene-card:hover {
        transform: none;
    }

    .scene-img {
        flex: 0 0 38%;
        width: 38%;
        height: auto;
        aspect-ratio: 4 / 3;
        border-radius: 8px;
        overflow: hidden;
        align-self: center;
    }

    .scene-body {
        flex: 1;
        min-width: 0;
        display: flex;
        flex-direction: column;
        justify-content: center;
        padding: 2px 2px 2px 0;
    }

    .scene-meta {
        font-size: 10px;
        margin-bottom: 4px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .scene-card h3 {
        font-size: 14px;
        line-height: 1.3;
        margin-bottom: 4px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .scene-card p {
        font-size: 11px;
        line-height: 1.55;
        -webkit-line-clamp: 2;
    }
}

/* ========================================
   移动端 CTA 横幅：等比例缩放
   ======================================== */
@media (max-width: 768px) {
    .section-cta {
        padding: var(--space-8) 0;
    }

    .cta-box {
        padding: 30px 20px;
        border-radius: 16px;
    }

    .cta-content h2 {
        font-size: 19px;
        margin-bottom: 8px;
        letter-spacing: 0;
    }

    .cta-content p {
        font-size: 12px;
        line-height: 1.6;
        margin-bottom: 18px;
        max-width: none;
    }

    .cta-actions {
        flex-direction: row;
        max-width: none;
    }

    .cta-actions .btn-lg {
        padding: 9px 20px;
        font-size: 13px;
        gap: 6px;
    }

    .cta-actions .btn-lg svg {
        width: 14px;
        height: 14px;
    }
}

/* ========================================
   全局移动端字号协调（2026-08 统一调试）
   目标：手机端文字整体收小一号，视觉更精致
   ======================================== */
@media (max-width: 768px) {
    body {
        font-size: 14px;
    }

    /* 区块标题统一收敛（覆盖此前多处零散补丁） */
    .section-title {
        font-size: 22px;
    }

    .section-subtitle {
        font-size: 13px;
    }

    .partner-header h2 {
        font-size: 22px;
    }

    .partner-header p {
        font-size: 13px;
    }

    /* 产品矩阵卡片文字 */
    .product-info h3 {
        font-size: 14px;
    }

    .product-info p {
        font-size: 12px;
    }

    /* 大按钮略微收敛 */
    .btn-lg {
        padding: 12px 22px;
        font-size: 14px;
    }

    /* 页脚层级 */
    .footer-links h4,
    .footer-friendlinks h4 {
        font-size: 13px;
    }

    .footer-contact p,
    .footer-brand-text {
        font-size: 13px;
    }

    .footer-bottom p {
        font-size: 12px;
    }

    .friendlinks-list a {
        font-size: 11px;
    }

    /* 移动端抽屉导航 */
    .mobile-nav-link {
        font-size: 14px;
    }
}

/* ========================================
   首页 Hero 按钮：立即体验 / 了解详情 统一尺寸
   ======================================== */
.hero-actions .btn {
    height: 50px;
    padding: 0 30px;
    font-size: 15px;
    box-sizing: border-box;
    line-height: 1;
}

@media (max-width: 768px) {
    .hero-actions .btn {
        height: 44px;
        padding: 0 24px;
        font-size: 14px;
    }
}

/* ===== Hero 双按钮：宽度统一 ===== */
.hero-actions .btn {
    width: 168px;
    justify-content: center;
}

@media (max-width: 768px) {
    .hero-actions {
        align-items: stretch;
    }

    .hero-actions .btn {
        width: 100%;
    }
}

/* ========================================
   首页模块间距节奏统一（2026-08）
   PC：88px → 72px，收敛更精致；移动端同步收敛
   ======================================== */

/* PC 端 */
.section {
    padding: 72px 0;
}

.section-header {
    margin-bottom: 40px;
}

.partner-section {
    padding: 56px 0;
}

.section-cta {
    padding: 56px 0;
}

.site-footer {
    padding: 56px 0 28px;
}

/* 平板 */
@media (max-width: 1024px) {
    .section {
        padding: 60px 0;
    }
}

/* 手机 */
@media (max-width: 768px) {
    .section {
        padding: 44px 0;
    }

    .section-header {
        margin-bottom: 24px;
    }

    .partner-section {
        padding: 36px 0;
    }

    .section-cta {
        padding: 28px 0;
    }

    .site-footer {
        padding: 44px 0 20px;
    }

    .section-action,
    .scene-more {
        margin-top: 24px;
    }
}

/* 小屏手机 */
@media (max-width: 480px) {
    .section {
        padding: 38px 0;
    }
}

/* ========================================
   全站字重：取消加粗，统一正常字重（2026-08）
   （鸿蒙字体补丁已撤除，恢复系统默认字体栈）
   ======================================== */
* {
    font-weight: 400 !important;
}

/* ========================================
   为什么选择悦互动：四卡毛玻璃效果（2026-08）
   区块加淡彩渐变底衬，卡片半透明 + 背景模糊
   ======================================== */
.section-why {
    background: linear-gradient(160deg, #F2F6FF 0%, #F7F4FE 45%, #EFF6FB 100%);
}

.why-card {
    background: rgba(255, 255, 255, 0.55);
    backdrop-filter: blur(16px) saturate(160%);
    -webkit-backdrop-filter: blur(16px) saturate(160%);
    border: 1px solid rgba(255, 255, 255, 0.75);
    box-shadow: 0 8px 28px -8px rgba(15, 23, 42, 0.08);
}

.why-card:hover {
    background: rgba(255, 255, 255, 0.7);
    box-shadow: 0 16px 40px -10px rgba(37, 99, 235, 0.15);
}

@media (max-width: 768px) {
    .why-card {
        backdrop-filter: blur(12px) saturate(150%);
        -webkit-backdrop-filter: blur(12px) saturate(150%);
    }
}

/* ========================================
   why 四卡：斜纹毛玻璃（区块背景保持纯白）
   ======================================== */
.section-why {
    background: var(--color-white);
}

.why-card {
    background:
        repeating-linear-gradient(
            -45deg,
            rgba(255, 255, 255, 0.28) 0px,
            rgba(255, 255, 255, 0.28) 2px,
            rgba(255, 255, 255, 0.02) 2px,
            rgba(255, 255, 255, 0.02) 12px
        ),
        linear-gradient(145deg, rgba(248, 250, 255, 0.72) 0%, rgba(240, 244, 255, 0.62) 100%);
    backdrop-filter: blur(14px) saturate(150%);
    -webkit-backdrop-filter: blur(14px) saturate(150%);
    border: 1px solid rgba(255, 255, 255, 0.8);
    box-shadow:
        0 8px 28px -8px rgba(15, 23, 42, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.why-card:hover {
    background:
        repeating-linear-gradient(
            -45deg,
            rgba(255, 255, 255, 0.35) 0px,
            rgba(255, 255, 255, 0.35) 2px,
            rgba(255, 255, 255, 0.05) 2px,
            rgba(255, 255, 255, 0.05) 12px
        ),
        linear-gradient(145deg, rgba(255, 255, 255, 0.85) 0%, rgba(245, 248, 255, 0.75) 100%);
    box-shadow:
        0 16px 40px -10px rgba(37, 99, 235, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 1);
}

@media (max-width: 768px) {
    .why-card {
        backdrop-filter: blur(10px) saturate(140%);
        -webkit-backdrop-filter: blur(10px) saturate(140%);
    }
}

/* ===== 斜纹对比度增强 ===== */
.why-card {
    background:
        repeating-linear-gradient(
            -45deg,
            rgba(203, 213, 235, 0.35) 0px,
            rgba(203, 213, 235, 0.35) 2px,
            rgba(255, 255, 255, 0.05) 2px,
            rgba(255, 255, 255, 0.05) 12px
        ),
        linear-gradient(145deg, rgba(248, 250, 255, 0.72) 0%, rgba(240, 244, 255, 0.62) 100%);
}

.why-card:hover {
    background:
        repeating-linear-gradient(
            -45deg,
            rgba(191, 219, 254, 0.4) 0px,
            rgba(191, 219, 254, 0.4) 2px,
            rgba(255, 255, 255, 0.08) 2px,
            rgba(255, 255, 255, 0.08) 12px
        ),
        linear-gradient(145deg, rgba(255, 255, 255, 0.85) 0%, rgba(245, 248, 255, 0.75) 100%);
}

/* ========================================
   why 四卡：高级毛玻璃 v2（2026-08）
   撤除斜纹，改为卡后弥散光斑 + 纯净玻璃质感
   ======================================== */

/* 卡片后方的弥散光斑（玻璃模糊的"内容源"） */
.section-why::before,
.section-why::after {
    content: "";
    position: absolute;
    width: 480px;
    height: 480px;
    border-radius: 50%;
    filter: blur(90px);
    pointer-events: none;
    z-index: 0;
}

.section-why::before {
    top: 8%;
    left: 4%;
    background: radial-gradient(circle, rgba(96, 165, 250, 0.35) 0%, rgba(96, 165, 250, 0) 70%);
}

.section-why::after {
    bottom: 4%;
    right: 2%;
    background: radial-gradient(circle, rgba(167, 139, 250, 0.32) 0%, rgba(167, 139, 250, 0) 70%);
}

/* 纯净玻璃卡片（覆盖掉斜纹补丁） */
.why-card,
.why-card:hover {
    background: rgba(255, 255, 255, 0.52);
    backdrop-filter: blur(22px) saturate(170%);
    -webkit-backdrop-filter: blur(22px) saturate(170%);
    border: 1px solid rgba(255, 255, 255, 0.85);
    box-shadow:
        0 12px 32px -10px rgba(15, 23, 42, 0.10),
        inset 0 1px 0 rgba(255, 255, 255, 0.95);
}

.why-card:hover {
    background: rgba(255, 255, 255, 0.66);
    box-shadow:
        0 20px 48px -12px rgba(37, 99, 235, 0.18),
        inset 0 1px 0 rgba(255, 255, 255, 1);
}

@media (max-width: 768px) {
    .section-why::before,
    .section-why::after {
        width: 300px;
        height: 300px;
        filter: blur(70px);
    }

    .why-card,
    .why-card:hover {
        backdrop-filter: blur(16px) saturate(160%);
        -webkit-backdrop-filter: blur(16px) saturate(160%);
    }
}

/* 悦多网络版权所有 */

/* ============================================================
   浅色系高端质感升级（2026-08-31）
   路线：保持浅色基调，通过留白层次 / 微投影 / 细腻光效提升质感
   悦多网络版权所有 © YueDuo Network. All Rights Reserved.
   ============================================================ */

/* ---------- ① 细节质感 ---------- */
::selection {
    background: rgba(37, 99, 235, 0.16);
    color: #0F172A;
}
::-webkit-scrollbar {
    width: 9px;
    height: 9px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: rgba(148, 163, 184, 0.45);
    border-radius: 5px;
    border: 2px solid #FFFFFF;
}
::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, #2563EB, #7C3AED);
}

/* ---------- ② 阴影体系精化：更柔、更有层次 ---------- */
:root {
    --shadow-md: 0 2px 6px -1px rgba(15, 23, 42, 0.05), 0 8px 20px -6px rgba(15, 23, 42, 0.07);
    --shadow-lg: 0 4px 10px -2px rgba(15, 23, 42, 0.05), 0 20px 40px -12px rgba(15, 23, 42, 0.12);
    --shadow-card: 0 1px 2px rgba(15, 23, 42, 0.04), 0 6px 18px -6px rgba(15, 23, 42, 0.05);
}

/* ---------- ③ 按钮：扫光 + 悬浮层次 ---------- */
.btn {
    letter-spacing: 0.02em;
}
.btn-primary {
    position: relative;
    overflow: hidden;
    box-shadow: 0 2px 6px rgba(37, 99, 235, 0.22), 0 8px 20px -6px rgba(37, 99, 235, 0.28);
}
.btn-primary::after {
    content: '';
    position: absolute;
    top: 0;
    left: -80%;
    width: 50%;
    height: 100%;
    background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.38), transparent);
    transform: skewX(-20deg);
    transition: left 0.6s ease;
    pointer-events: none;
}
.btn-primary:hover::after {
    left: 130%;
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(37, 99, 235, 0.26), 0 14px 30px -8px rgba(37, 99, 235, 0.36);
}
.btn-accent:hover,
.btn-ghost:hover,
.btn-outline:hover,
.btn-white:hover {
    transform: translateY(-2px);
}

/* ---------- ④ 章节标题：渐变装饰下划线 ---------- */
.section-title {
    position: relative;
    padding-bottom: 20px;
}
.section-title::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 52px;
    height: 4px;
    border-radius: 2px;
    background: linear-gradient(90deg, #2563EB 0%, #7C3AED 55%, #EC4899 100%);
    box-shadow: 0 2px 8px rgba(124, 58, 237, 0.30);
}
.section-subtitle {
    letter-spacing: 0.02em;
}
.partner-header h2 {
    position: relative;
    padding-bottom: 18px;
}
.partner-header h2::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 52px;
    height: 4px;
    border-radius: 2px;
    background: linear-gradient(90deg, #2563EB 0%, #7C3AED 55%, #EC4899 100%);
    box-shadow: 0 2px 8px rgba(124, 58, 237, 0.30);
}

/* ---------- ⑤ 卡片：柔和悬浮 ---------- */
.product-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 6px 16px -4px rgba(15, 23, 42, 0.08), 0 20px 44px -14px rgba(37, 99, 235, 0.16);
    border-color: rgba(37, 99, 235, 0.20);
}
.pricing-card {
    transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.35s ease, border-color 0.35s ease;
}
.pricing-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 6px 16px -4px rgba(15, 23, 42, 0.08), 0 24px 48px -16px rgba(37, 99, 235, 0.18);
}
.partner-logo:hover {
    transform: translateY(-3px);
}
.tab-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.12);
}

/* ---------- ⑥ 页头：更轻盈的玻璃感 ---------- */
.site-header {
    background: rgba(255, 255, 255, 0.78);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
}

/* ---------- ⑦ 首页 Hero：浅色光效层次 ---------- */
/* 底部淡出过渡，与下方内容柔和衔接 */
.hero::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 120px;
    background: linear-gradient(180deg, transparent 0%, rgba(255, 255, 255, 0.55) 100%);
    pointer-events: none;
    z-index: 4;
}
/* 徽章：白玻璃 + 柔光 */
.hero-badge {
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid rgba(254, 202, 202, 0.6);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 4px 14px rgba(239, 68, 68, 0.10), inset 0 1px 0 rgba(255, 255, 255, 0.9);
}
/* 标题字距精调 */
.hero-title {
    letter-spacing: 0.01em;
}
/* 轮播：柔光海报感 */
.hero-carousel {
    border-radius: 16px;
    box-shadow:
        0 8px 20px -6px rgba(15, 23, 42, 0.10),
        0 28px 56px -16px rgba(37, 99, 235, 0.20),
        0 0 0 1px rgba(255, 255, 255, 0.65);
}
/* 信任卡：悬浮时微微泛蓝 */
.trust-item:hover {
    box-shadow: 0 10px 36px rgba(59, 130, 246, 0.14), inset 0 1px 0 rgba(255, 255, 255, 1);
}

/* ---------- ⑧ 页脚：浅色精化 ---------- */
.site-footer {
    position: relative;
    border-top: none;
}
/* 顶部渐变发丝线 */
.site-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, rgba(59, 130, 246, 0.35) 30%, rgba(139, 92, 246, 0.35) 60%, transparent 100%);
}
.footer-links h4,
.footer-friendlinks h4 {
    letter-spacing: 0.04em;
}
.footer-links a {
    transition: color var(--transition-fast), transform var(--transition-fast);
}
.footer-links a:hover {
    transform: translateX(3px);
}

/* ---------- 移动端适配 ---------- */
@media (max-width: 768px) {
    .section-title {
        padding-bottom: 14px;
    }
    .section-title::after,
    .partner-header h2::after {
        width: 38px;
        height: 3px;
    }
    .hero::after {
        height: 64px;
    }
    .hero-carousel {
        border-radius: 12px;
    }
}

/* 悦多网络版权所有 */

/* ===== 易优CMS 模板适配：功能矩阵卡片链接化 ===== */
/* 悦多网络版权所有 */
a.product-card { text-decoration: none; color: inherit; display: block; }
a.product-card:hover { text-decoration: none; }
/* 悦多网络版权所有 */

/* ===== 易优CMS 模板适配：hero 头条徽标链接 ===== */
/* 悦多网络版权所有 */
.hero-badge .badge-link { color: inherit; text-decoration: none; }
.hero-badge .badge-link:hover { text-decoration: underline; }
/* 悦多网络版权所有 */