/* ============================================
   AI内容智造 - 企业官网样式表
   ============================================ */

/* ========== CSS变量 - 佳恒圣远VI主题系统 ========== */
:root {
    /* --- 品牌主色（VI规范） --- */
    --color-primary: #1677ff;
    --color-primary-light: #4096ff;
    --color-primary-dark: #0958d9;
    --color-primary-bg: rgba(22, 119, 255, 0.06);
    --color-secondary: #00c6ff;
    --color-accent: #faad14;

    /* --- 语义色（VI规范） --- */
    --color-success: #52c41a;
    --color-warning: #faad14;
    --color-danger: #ff4d4f;
    --color-info: #1677ff;

    /* --- 渐变（VI规范） --- */
    --gradient-primary: linear-gradient(135deg, #1677ff 0%, #00c6ff 100%);
    --gradient-dark: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    --gradient-accent: linear-gradient(135deg, #faad14 0%, #ff7a45 100%);

    /* --- 文字色（VI规范） --- */
    --text-primary: #111827;
    --text-secondary: #4b5563;
    --text-tertiary: #9ca3af;
    --text-white: #ffffff;

    /* --- 背景色（VI规范） --- */
    --bg-white: #ffffff;
    --bg-gray-50: #f9fafb;
    --bg-gray-100: #f3f4f6;
    --bg-gray-200: #e5e7eb;
    --bg-dark: #0f172a;
    --bg-dark-2: #1e293b;

    /* --- 边框色（VI规范） --- */
    --border-color: #e5e7eb;
    --border-light: #f3f4f6;

    /* --- 阴影（VI规范5级） --- */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.06);
    --shadow-xl: 0 16px 32px rgba(0, 0, 0, 0.08);
    --shadow-glow: 0 0 30px rgba(22, 119, 255, 0.3);
    --shadow-glow-strong: 0 0 60px rgba(22, 119, 255, 0.5);

    /* --- 字体（VI规范） --- */
    --font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;

    --font-size-xs: 12px;
    --font-size-sm: 14px;
    --font-size-base: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;
    --font-size-3xl: 32px;
    --font-size-4xl: 40px;
    --font-size-5xl: 48px;

    /* --- 间距（VI规范12级） --- */
    --spacing-1: 4px;
    --spacing-2: 8px;
    --spacing-3: 12px;
    --spacing-4: 16px;
    --spacing-5: 20px;
    --spacing-6: 24px;
    --spacing-8: 32px;
    --spacing-10: 40px;
    --spacing-12: 48px;
    --spacing-16: 64px;
    --spacing-20: 80px;
    --spacing-24: 96px;

    /* 兼容旧变量名 */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    --spacing-4xl: 96px;

    /* --- 圆角（VI规范） --- */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --radius-full: 9999px;

    /* --- 过渡（VI规范） --- */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* --- 布局 --- */
    --header-height: 72px;
    --container-width: 1200px;

    /* --- 层级 --- */
    --z-index-dropdown: 100;
    --z-index-sticky: 200;
    --z-index-modal: 1000;
    --z-index-tooltip: 1100;
}

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

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-white);
    overflow-x: hidden;
}

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

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

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

ul, ol {
    list-style: none;
}

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

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
    color: inherit;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
}

/* ========== 通用工具类 ========== */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.section {
    padding: var(--spacing-4xl) 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-tag {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-primary);
    background: rgba(22, 119, 255, 0.1);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-md);
    letter-spacing: 1px;
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 900;
    margin-bottom: var(--spacing-md);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-desc {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ========== 按钮样式 ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: 600;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.btn-small {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
}

.btn-block {
    width: 100%;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-white);
    box-shadow: 0 4px 15px rgba(22, 119, 255, 0.3);
}

.btn-primary:hover {
    color: var(--text-white);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(22, 119, 255, 0.4);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-outline:hover {
    background: var(--color-primary);
    color: var(--text-white);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(22, 119, 255, 0.3);
}

.btn-glow {
    animation: btnGlow 2s ease-in-out infinite;
}

.btn-arrow {
    width: 18px;
    height: 18px;
    transition: transform var(--transition-base);
}

.btn:hover .btn-arrow {
    transform: translateX(4px);
}

/* ========== 滚动动画 ========== */
.scroll-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.scroll-animate.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========== 顶部导航 ========== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-index-sticky);
    transition: all var(--transition-base);
    height: var(--header-height);
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow-md);
    height: 64px;
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo a {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo-icon img {
    width: 36px;
    height: 36px;
    display: block;
}

.logo-text {
    font-size: var(--font-size-xl);
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-link {
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: var(--spacing-sm) 0;
    transition: color var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
}

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

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-cta {
    display: flex;
    align-items: center;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: var(--spacing-sm);
    z-index: var(--z-index-sticky);
    position: relative;
}

.hamburger.active {
    z-index: 10000 !important;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-base);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* ========== Hero Banner ========== */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: var(--header-height);
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
    background: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
}

.hero-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(rgba(22, 119, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(22, 119, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    z-index: 1;
}

.particles-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.gradient-flow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: 
        radial-gradient(circle at 30% 30%, rgba(22, 119, 255, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 70% 70%, rgba(0, 198, 255, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 50% 50%, rgba(250, 173, 20, 0.08) 0%, transparent 30%);
    animation: gradientFlow 20s ease-in-out infinite;
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: floatOrb 15s ease-in-out infinite;
}

.orb-1 {
    width: 400px;
    height: 400px;
    background: rgba(22, 119, 255, 0.3);
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.orb-2 {
    width: 300px;
    height: 300px;
    background: rgba(0, 198, 255, 0.3);
    bottom: 20%;
    right: 15%;
    animation-delay: -5s;
}

.orb-3 {
    width: 250px;
    height: 250px;
    background: rgba(250, 173, 20, 0.2);
    top: 50%;
    left: 50%;
    animation-delay: -10s;
}

/* ========== Hero Banner 轮播 ========== */
.hero-carousel {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 40px;
    transform: translateY(-15vh);
}

.hero-slide {
    display: none;
    text-align: center;
    padding: 0 var(--spacing-lg);
    animation: fadeInSlide 0.6s ease;
}

.hero-slide.active {
    display: block;
}

@keyframes fadeInSlide {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.hero-slide .hero-badge {
    margin-bottom: var(--spacing-xl);
}

.hero-slide .hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 900;
    color: var(--text-white);
    line-height: 1.2;
    margin-bottom: var(--spacing-xl);
}

.hero-slide .hero-subtitle {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
    margin-bottom: var(--spacing-2xl);
}

.hero-slide .hero-buttons {
    margin-bottom: 0;
}

/* 轮播指示器 */
.hero-carousel-dots {
    position: absolute;
    bottom: 35vh;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    gap: var(--spacing-md);
}

.hero-carousel-dots .carousel-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: all var(--transition-base);
    border: none;
    padding: 0;
}

.hero-carousel-dots .carousel-dot:hover {
    background: rgba(255, 255, 255, 0.7);
}

.hero-carousel-dots .carousel-dot.active {
    background: var(--text-white);
    width: 36px;
    border-radius: 6px;
}

/* 轮播箭头 */
.hero-carousel-arrow {
    position: absolute;
    top: 35%;
    transform: translateY(-50%);
    z-index: 2;
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    cursor: pointer;
    transition: all var(--transition-base);
    opacity: 0.6;
}

.hero-carousel-arrow:hover {
    background: rgba(255, 255, 255, 0.2);
    opacity: 1;
}

.hero-carousel-arrow svg {
    width: 24px;
    height: 24px;
}

.carousel-arrow-prev {
    left: var(--spacing-xl);
}

.carousel-arrow-next {
    right: var(--spacing-xl);
}

/* 统计数据位置调整 */
.hero-section .hero-stats {
    position: absolute;
    bottom: 20vh;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-carousel {
        padding-top: 20px;
        transform: translateY(-12vh);
    }
    
    .hero-slide .hero-title {
        font-size: 28px;
    }
    
    .hero-slide .hero-subtitle {
        font-size: 14px;
    }
    
    .hero-carousel-dots {
        bottom: 38vh;
    }
    
    .hero-carousel-arrow {
        width: 36px;
        height: 36px;
        opacity: 0.8;
        top: 30%;
    }
    
    .carousel-arrow-prev {
        left: 10px;
    }
    
    .carousel-arrow-next {
        right: 10px;
    }
    
    .hero-section .hero-stats {
        bottom: 15vh;
        gap: var(--spacing-lg);
        padding: var(--spacing-md) var(--spacing-lg);
    }
    
    .hero-section .hero-stats .stat-number {
        font-size: var(--font-size-xl);
    }
    
    .hero-section .hero-stats .stat-label {
        font-size: var(--font-size-xs);
    }
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 10px var(--spacing-xl);
    border-radius: var(--radius-full);
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-bottom: var(--spacing-xl);
    letter-spacing: 0.5px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1), inset 0 0 20px rgba(255, 255, 255, 0.05);
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--color-success);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 900;
    color: var(--text-white);
    line-height: 0.8;
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.hero-title .char {
    display: inline-block;
    opacity: 0;
    transform: translateY(30px);
    animation: charReveal 0.5s ease forwards;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
    margin-bottom: var(--spacing-2xl);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    margin-bottom: var(--spacing-3xl);
    flex-wrap: wrap;
}

.hero-buttons .btn-outline {
    color: rgba(255, 255, 255, 0.9);
    border-color: rgba(255, 255, 255, 0.3);
}

.hero-buttons .btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
    color: var(--text-white);
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2xl);
    flex-wrap: wrap;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-xl) var(--spacing-2xl);
}

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

.stat-number {
    font-size: var(--font-size-2xl);
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.6);
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    color: rgba(255, 255, 255, 0.5);
    font-size: var(--font-size-xs);
}

.scroll-mouse {
    width: 24px;
    height: 40px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 12px;
    position: relative;
}

.scroll-mouse::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 2px;
    animation: scrollWheel 2s ease-in-out infinite;
}

/* ========== 核心优势 ========== */
.advantages-section {
    background: var(--bg-gray-50);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
}

.advantage-card {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    transition: all var(--transition-base);
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.6);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.05);
}

.advantage-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(22, 119, 255, 0.15);
    border-color: rgba(22, 119, 255, 0.3);
}

.advantage-card.highlight {
    background: var(--gradient-primary);
    color: var(--text-white);
    border-color: transparent;
}

.advantage-card.highlight .advantage-title,
.advantage-card.highlight .advantage-list li strong {
    color: var(--text-white);
}

.advantage-card.highlight .advantage-list li {
    color: rgba(255, 255, 255, 0.9);
}

.advantage-icon {
    width: 64px;
    height: 64px;
    background: rgba(22, 119, 255, 0.1);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    color: var(--color-primary);
    transition: all var(--transition-base);
}

.advantage-card.highlight .advantage-icon {
    background: rgba(255, 255, 255, 0.2);
    color: var(--text-white);
}

.advantage-card:hover .advantage-icon {
    transform: scale(1.1) rotate(5deg);
}

.advantage-icon svg {
    width: 44px;
    height: 44px;
}

.advantage-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.advantage-list li {
    padding: var(--spacing-sm) 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: var(--spacing-lg);
}

.advantage-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
}

.advantage-card.highlight .advantage-list li::before {
    color: var(--color-accent);
}

.advantage-list li strong {
    color: var(--text-primary);
    font-weight: 600;
}

.advantage-badge {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    background: var(--color-accent);
    color: var(--text-white);
    font-size: var(--font-size-xs);
    font-weight: 600;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
}

.advantage-card.highlight::before {
    content: '';
    position: absolute;
    top: -1px;
    left: -1px;
    right: -1px;
    bottom: -1px;
    background: var(--gradient-primary);
    border-radius: var(--radius-2xl);
    z-index: -1;
    opacity: 0.15;
}

/* ========== 六大服务 ========== */
.services-section {
    background: var(--bg-white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.service-card {
    position: relative;
    border-radius: var(--radius-2xl);
    transition: all var(--transition-base);
    cursor: pointer;
}

.service-card-inner {
    position: relative;
    z-index: 1;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    height: 100%;
    transition: all var(--transition-base);
    overflow: hidden;
}

.service-card-inner::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(22, 119, 255, 0.05), transparent);
    transition: left 0.6s ease;
}

.service-card:hover .service-card-inner::before {
    left: 100%;
}

.service-card:hover .service-card-inner {
    border-color: transparent;
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(22, 119, 255, 0.12);
}

.service-icon {
    width: 72px;
    height: 72px;
    background: linear-gradient(135deg, rgba(22, 119, 255, 0.1) 0%, rgba(0, 198, 255, 0.1) 100%);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    color: var(--color-primary);
    transition: all var(--transition-base);
}

.service-card:hover .service-icon {
    transform: rotateY(360deg);
    background: var(--gradient-primary);
    color: var(--text-white);
}

.service-icon svg {
    width: 50px;
    height: 50px;
}

.service-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.service-desc {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.service-features {
    margin-bottom: var(--spacing-xl);
}

.service-features li {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    padding: var(--spacing-xs) 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.service-features li::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--color-primary);
    border-radius: 50%;
    flex-shrink: 0;
}



.service-number {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    font-size: 48px;
    font-weight: 900;
    color: rgba(22, 119, 255, 0.06);
    line-height: 1;
    z-index: 0;
    transition: color var(--transition-base);
}

.service-card:hover .service-number {
    color: rgba(22, 119, 255, 0.12);
}

.card-glow {
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: var(--gradient-primary);
    border-radius: calc(var(--radius-2xl) + 2px);
    z-index: 0;
    opacity: 0;
    transition: opacity var(--transition-base);
    filter: blur(10px);
}

.service-card:hover .card-glow {
    opacity: 0.3;
}

/* ========== 外拍计费规则 ========== */
.shooting-section {
    background: linear-gradient(180deg, var(--bg-gray-50) 0%, var(--bg-white) 100%);
}

.shooting-notice {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
    background: linear-gradient(135deg, #fff7e6 0%, #ffe7ba 100%);
    border: 1px solid #ffd591;
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl) var(--spacing-2xl);
    margin-bottom: var(--spacing-3xl);
}

.notice-icon {
    width: 48px;
    height: 48px;
    background: var(--color-accent);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    flex-shrink: 0;
}

.notice-icon svg {
    width: 24px;
    height: 24px;
}

.notice-content h4 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: #ad4e00;
    margin-bottom: var(--spacing-sm);
}

.notice-content p {
    color: #d46b08;
    line-height: 1.7;
}

.notice-content strong {
    color: #ad4e00;
    font-weight: 700;
}

.shooting-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.shooting-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.shooting-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary);
}

.shooting-card.featured {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-glow);
}

.shooting-card-header {
    margin-bottom: var(--spacing-lg);
}

.shooting-badge {
    display: inline-block;
    background: rgba(22, 119, 255, 0.1);
    color: var(--color-primary);
    font-size: var(--font-size-sm);
    font-weight: 600;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-md);
}

.shooting-price {
    display: flex;
    align-items: baseline;
    gap: 2px;
}

.price-unit {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-primary);
}

.price-num {
    font-size: var(--font-size-4xl);
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.price-period {
    font-size: var(--font-size-base);
    color: var(--text-tertiary);
    margin-left: var(--spacing-xs);
}

.shooting-capacity {
    display: flex;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    margin-bottom: var(--spacing-lg);
}

.capacity-item {
    flex: 1;
    text-align: center;
}

.capacity-label {
    display: block;
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    margin-bottom: var(--spacing-xs);
}

.capacity-value {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
}

.shooting-list li {
    padding: var(--spacing-sm) 0;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.shooting-list li::before {
    content: '✓';
    color: var(--color-success);
    font-weight: 700;
    flex-shrink: 0;
}

.recommend-tag {
    position: absolute;
    top: var(--spacing-lg);
    right: -32px;
    background: var(--gradient-primary);
    color: var(--text-white);
    font-size: var(--font-size-xs);
    font-weight: 600;
    padding: var(--spacing-xs) 40px;
    transform: rotate(45deg);
}

/* ========== 套餐体系 ========== */
.pricing-section {
    background: var(--bg-white);
}

.pricing-tabs {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-3xl);
    background: var(--bg-gray-100);
    padding: var(--spacing-xs);
    border-radius: var(--radius-full);
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
}

.tab-btn {
    padding: var(--spacing-sm) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

.tab-btn.active {
    background: var(--gradient-primary);
    color: var(--text-white);
    box-shadow: var(--shadow-md);
}

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

.pricing-panels {
    position: relative;
}

.pricing-panel {
    display: none;
}

.pricing-panel.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    align-items: stretch;
}

.pricing-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary);
}

.pricing-card.recommended {
    border-color: var(--color-primary);
    transform: scale(1.05);
    box-shadow: 0 0 40px rgba(22, 119, 255, 0.25), 0 0 80px rgba(22, 119, 255, 0.1);
    background: linear-gradient(180deg, #f0f7ff 0%, #ffffff 30%);
    animation: breathing 3s ease-in-out infinite;
}

.pricing-card.recommended:hover {
    transform: scale(1.05) translateY(-8px);
    box-shadow: 0 0 60px rgba(22, 119, 255, 0.4), 0 0 100px rgba(22, 119, 255, 0.15);
}

.pricing-card-header {
    margin-bottom: var(--spacing-lg);
}

.pricing-name {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.pricing-desc {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
}

.pricing-price {
    display: flex;
    align-items: baseline;
    margin-bottom: var(--spacing-lg);
}

.currency {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-primary);
}

.amount {
    font-size: var(--font-size-5xl);
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin: 0 var(--spacing-xs);
}

.price-animate {
    display: inline-block;
    min-width: 3ch;
    text-align: center;
    font-variant-numeric: tabular-nums;
    transition: text-shadow 0.3s ease;
}

.price-animate.animating {
    text-shadow: 0 0 20px rgba(102, 126, 234, 0.5);
}

.period {
    font-size: var(--font-size-base);
    color: var(--text-tertiary);
}

.pricing-save {
    display: inline-block;
    background: linear-gradient(135deg, #ff7a45 0%, #fa541c 100%);
    color: var(--text-white);
    font-size: var(--font-size-xs);
    font-weight: 600;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-lg);
}

.pricing-features {
    margin-bottom: var(--spacing-xl);
    flex: 1;
}

.pricing-features li {
    padding: var(--spacing-sm) 0;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
}

.pricing-features li::before {
    content: '✓';
    color: var(--color-success);
    font-weight: 700;
    flex-shrink: 0;
}

.recommend-badge {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    background: var(--gradient-accent);
    color: var(--text-white);
    font-size: var(--font-size-xs);
    font-weight: 600;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
}

/* ========== 服务保障 & 交付流程 ========== */
.process-section {
    background: var(--bg-gray-50);
}

.guarantees-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-3xl);
}

.guarantee-item {
    text-align: center;
    padding: var(--spacing-xl);
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

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

.guarantee-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, rgba(22, 119, 255, 0.1) 0%, rgba(0, 198, 255, 0.1) 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    color: var(--color-primary);
}

.guarantee-icon svg {
    width: 28px;
    height: 28px;
}

.guarantee-item h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.guarantee-item p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.process-timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.timeline-line {
    position: absolute;
    top: 30px;
    left: 5%;
    right: 5%;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    border-radius: 2px;
}

.timeline-items {
    display: flex;
    justify-content: space-between;
    position: relative;
    z-index: 1;
}

.timeline-item {
    text-align: center;
    flex: 1;
    padding: 0 var(--spacing-md);
}

.timeline-dot {
    width: 60px;
    height: 60px;
    background: var(--bg-white);
    border: 3px solid var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    font-size: var(--font-size-lg);
    font-weight: 900;
    color: var(--color-primary);
    transition: all var(--transition-base);
    box-shadow: 0 4px 15px rgba(22, 119, 255, 0.15);
}

.timeline-item:hover .timeline-dot {
    background: var(--gradient-primary);
    color: var(--text-white);
    transform: scale(1.15);
    box-shadow: 0 8px 30px rgba(22, 119, 255, 0.3);
}

.timeline-content h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.timeline-content p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ========== 案例展示 ========== */
.cases-section {
    background: var(--bg-white);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.case-item {
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
    cursor: pointer;
}

.case-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.case-image {
    position: relative;
    overflow: hidden;
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.case-item:hover .case-image img {
    transform: scale(1.1);
}

.case-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-white);
    transition: transform var(--transition-slow);
}

.case-1 { background: linear-gradient(135deg, #1677ff 0%, #0958d9 100%); }
.case-2 { background: linear-gradient(135deg, #4096ff 0%, #00c6ff 100%); }
.case-3 { background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%); }
.case-4 { background: linear-gradient(135deg, #00c6ff 0%, #52c41a 100%); }
.case-5 { background: linear-gradient(135deg, #faad14 0%, #ff7a45 100%); }
.case-6 { background: linear-gradient(135deg, #1677ff 0%, #00c6ff 100%); }

.case-item:hover .case-placeholder {
    transform: scale(1.1);
}

.case-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, transparent 30%, rgba(0, 0, 0, 0.85) 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: var(--spacing-xl);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.case-item:hover .case-overlay {
    opacity: 1;
}

.case-overlay h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-white);
    margin-bottom: var(--spacing-xs);
    transform: translateY(20px);
    transition: transform var(--transition-base);
}

.case-overlay p {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.8);
    transform: translateY(20px);
    transition: transform var(--transition-base) 0.1s;
}

.case-item:hover .case-overlay h4,
.case-item:hover .case-overlay p {
    transform: translateY(0);
}

.case-info {
    padding: var(--spacing-lg);
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-top: none;
}

.case-tag {
    display: inline-block;
    font-size: var(--font-size-xs);
    color: var(--color-primary);
    background: rgba(22, 119, 255, 0.1);
    padding: 2px var(--spacing-sm);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-xs);
}

.case-title {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
}

/* ========== 联系我们 ========== */
.contact-section {
    background: linear-gradient(180deg, var(--bg-gray-50) 0%, var(--bg-white) 100%);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.contact-info .section-tag {
    margin-bottom: var(--spacing-md);
}

.contact-info .section-title {
    text-align: left;
    margin-bottom: var(--spacing-lg);
}

.contact-desc {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-2xl);
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.contact-qrcode {
    text-align: left;
    padding-top: var(--spacing-md);
}

.qrcode-label {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.contact-qrcode img {
    width: 140px;
    height: 140px;
    object-fit: cover;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.contact-method {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.contact-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, rgba(22, 119, 255, 0.1) 0%, rgba(0, 198, 255, 0.1) 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    flex-shrink: 0;
    transition: all var(--transition-base);
}

.contact-method:hover .contact-icon {
    background: var(--gradient-primary);
    color: var(--text-white);
    transform: scale(1.1);
}

.contact-icon svg {
    width: 24px;
    height: 24px;
}

.contact-icon img {
    width: 36px;
    height: 36px;
    object-fit: contain;
    border-radius: 4px;
}

.contact-method h5 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.contact-method p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.contact-form-wrap {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.8);
}

.contact-form h3 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.form-desc {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: var(--spacing-md);
    font-size: var(--font-size-base);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-white);
    transition: all var(--transition-fast);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(22, 119, 255, 0.1), 0 4px 12px rgba(22, 119, 255, 0.08);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-tip {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    text-align: center;
    margin-top: var(--spacing-md);
}

.form-tip a {
    color: var(--color-primary);
}

/* ========== 页脚 ========== */
.footer {
    background: var(--bg-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
}

.footer-top {
    display: grid;
    grid-template-columns: 1.5fr 3fr;
    gap: var(--spacing-3xl);
    padding-bottom: var(--spacing-2xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.footer-desc {
    font-size: var(--font-size-sm);
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
}

.footer-col h5 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-white);
    margin-bottom: var(--spacing-lg);
}

.footer-col ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-col ul li a {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.6);
    transition: color var(--transition-fast);
}

.footer-col ul li a:hover {
    color: var(--color-secondary);
}

.footer-bottom {
    padding-top: var(--spacing-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-copyright p {
    font-size: var(--font-size-xs);
    color: rgba(255, 255, 255, 0.5);
}

.footer-icp {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
    font-size: var(--font-size-xs);
}

.footer-icp a {
    color: rgba(255, 255, 255, 0.5);
}

.footer-icp a:hover {
    color: var(--color-secondary);
}

.footer-icp span {
    color: rgba(255, 255, 255, 0.3);
}

/* ========== 弹窗样式 ========== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: var(--z-index-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    visibility: hidden;
    opacity: 0;
    transition: opacity var(--transition-base), visibility var(--transition-base);
}

.modal.active {
    visibility: visible;
    opacity: 1;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
}

.modal-container {
    position: relative;
    width: 90%;
    max-width: 900px;
    max-height: 90vh;
    background: var(--bg-white);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    transform: scale(0.9);
    transition: transform var(--transition-base);
}

.modal.active .modal-container {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    z-index: 10;
    width: 40px;
    height: 40px;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--color-danger);
    transform: rotate(90deg);
}

.modal-close svg {
    width: 20px;
    height: 20px;
}

.modal-content {
    display: flex;
    flex-direction: column;
    height: 100%;
    max-height: 90vh;
}

.modal-header {
    padding: var(--spacing-xl) var(--spacing-2xl);
    border-bottom: 1px solid var(--border-color);
}

.modal-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
}

.modal-body {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-2xl);
}

.modal-footer {
    padding: var(--spacing-xl) var(--spacing-2xl);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
}

/* ========== 轮播图 ========== */
.carousel {
    position: relative;
    margin-bottom: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.carousel-track {
    display: flex;
    transition: transform 0.5s ease;
}



/* ========== 返回顶部 ========== */
.back-to-top {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    color: var(--text-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: var(--z-index-sticky);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-lg);
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.back-to-top svg {
    width: 20px;
    height: 20px;
}

/* ========== 动画关键帧 ========== */
@keyframes gradientFlow {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg);
    }
    33% {
        transform: translate(5%, -5%) rotate(5deg);
    }
    66% {
        transform: translate(-5%, 5%) rotate(-5deg);
    }
}

@keyframes floatOrb {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    50% {
        transform: translate(30px, -30px) scale(1.1);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.5;
        transform: scale(1.5);
    }
}

@keyframes btnGlow {
    0%, 100% {
        box-shadow: 0 4px 15px rgba(22, 119, 255, 0.3);
    }
    50% {
        box-shadow: 0 4px 30px rgba(22, 119, 255, 0.5), 0 0 40px rgba(0, 198, 255, 0.2);
    }
}

@keyframes charReveal {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scrollWheel {
    0% {
        transform: translateX(-50%) translateY(0);
        opacity: 1;
    }
    100% {
        transform: translateX(-50%) translateY(16px);
        opacity: 0;
    }
}

@keyframes breathing {
    0%, 100% {
        box-shadow: 0 0 30px rgba(22, 119, 255, 0.3);
    }
    50% {
        box-shadow: 0 0 60px rgba(22, 119, 255, 0.5);
    }
}

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

/* ========== 响应式设计 ========== */

/* 大屏桌面 */
@media (min-width: 1200px) {
    .hero-title {
        font-size: 56px;
    }
}

/* 小屏桌面 */
@media (max-width: 1199px) {
    :root {
        --container-width: 960px;
    }
    
    .hero-title {
        font-size: var(--font-size-5xl);
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .shooting-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .shooting-card:last-child {
        grid-column: span 2;
        max-width: 50%;
        margin: 0 auto;
    }
    
    .pricing-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .amount {
        font-size: var(--font-size-4xl);
    }
    
    .guarantees-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-top {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    .footer-links {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* 平板 */
@media (max-width: 991px) {
    :root {
        --container-width: 720px;
        --spacing-4xl: 72px;
        --spacing-3xl: 48px;
    }
    
    .hamburger {
        display: flex;
    }
    
    body.menu-open main,
    body.menu-open .hero-section,
    body.menu-open section {
        filter: blur(8px);
        transition: filter 0.3s ease;
    }
    
    .nav-menu {
        display: flex;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        margin: 0 !important;
        padding: 0 !important;
        list-style: none !important;
        background: linear-gradient(135deg, rgba(15, 23, 42, 0.85) 0%, rgba(30, 41, 59, 0.85) 100%) !important;
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: var(--spacing-2xl);
        z-index: 9999 !important;
        opacity: 0;
        visibility: hidden;
        transform: translateX(100%);
        transition: opacity 0.3s ease, transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        padding-top: var(--header-height) !important;
        pointer-events: none;
        width: 100%;
        height: 100vh;
    }
    
    .nav-menu.active {
        opacity: 1;
        visibility: visible;
        transform: translateX(0);
        pointer-events: auto;
    }
    
    .nav-menu.active .nav-link {
        font-size: var(--font-size-2xl);
        font-weight: 600;
        color: #ffffff !important;
        opacity: 0;
        transform: translateX(30px);
        animation: slideInRight 0.4s ease forwards;
    }
    
    .nav-menu.active .nav-link:hover,
    .nav-menu.active .nav-link.active {
        color: #00c6ff !important;
    }
    
    .nav-menu.active .nav-link:nth-child(1) { animation-delay: 0.1s; }
    .nav-menu.active .nav-link:nth-child(2) { animation-delay: 0.15s; }
    .nav-menu.active .nav-link:nth-child(3) { animation-delay: 0.2s; }
    .nav-menu.active .nav-link:nth-child(4) { animation-delay: 0.25s; }
    .nav-menu.active .nav-link:nth-child(5) { animation-delay: 0.3s; }
    .nav-menu.active .nav-link:nth-child(6) { animation-delay: 0.35s; }
    .nav-menu.active .nav-link:nth-child(7) { animation-delay: 0.4s; }
    .nav-menu.active .nav-link:nth-child(8) { animation-delay: 0.45s; }
    
    .nav-menu.active .nav-link::after {
        display: none;
    }
    
    @keyframes slideInRight {
        to {
            opacity: 1;
            transform: translateX(0);
        }
    }
    
    .hero-title {
        font-size: var(--font-size-4xl);
    }
    
    .hero-stats {
        gap: var(--spacing-xl);
    }
    
    .stat-divider {
        display: none;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .pricing-card.recommended {
        transform: scale(1);
    }
    
    .pricing-card.recommended:hover {
        transform: translateY(-8px);
    }
    
    .timeline-line {
        display: none;
    }
    
    .timeline-items {
        flex-direction: column;
        gap: var(--spacing-xl);
    }
    
    .timeline-item {
        display: flex;
        align-items: center;
        gap: var(--spacing-lg);
        text-align: left;
    }
    
    .timeline-dot {
        margin: 0;
        flex-shrink: 0;
        width: 50px;
        height: 50px;
        font-size: var(--font-size-base);
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .service-cards {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 手机横屏 */
@media (max-width: 767px) {
    :root {
        --spacing-4xl: 60px;
        --spacing-3xl: 40px;
        --spacing-2xl: 32px;
    }
    
    .section-title {
        font-size: var(--font-size-3xl);
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-base);
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-buttons .btn {
        width: 100%;
        max-width: 280px;
    }
    
    .hero-stats {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .shooting-cards {
        grid-template-columns: 1fr;
    }
    
    .shooting-card:last-child {
        grid-column: span 1;
        max-width: 100%;
        margin: 0;
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .modal-container {
        width: 100%;
        max-width: 100%;
        max-height: 100vh;
        height: 100vh;
        border-radius: 0;
    }
    
    .modal-content {
        max-height: 100vh;
    }
    
    .modal-header {
        padding: var(--spacing-lg);
        padding-right: 60px;
    }
    
    .modal-body {
        padding: var(--spacing-lg);
    }
    
    .modal-footer {
        padding: var(--spacing-lg);
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 40px;
        height: 40px;
    }
}

/* 手机竖屏 */
@media (max-width: 575px) {
    :root {
        --header-height: 64px;
        --spacing-4xl: 48px;
        --spacing-3xl: 32px;
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .section-title {
        font-size: var(--font-size-2xl);
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .pricing-tabs {
        flex-wrap: wrap;
        width: 100%;
    }
    
    .tab-btn {
        flex: 1;
        min-width: 80px;
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-sm);
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .guarantees-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-lg);
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .modal-features {
        grid-template-columns: 1fr;
    }
    
    .carousel-btn {
        width: 36px;
        height: 36px;
    }
    
    .carousel-btn svg {
        width: 18px;
        height: 18px;
    }
}

/* ========== 减少动画偏好 ========== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* ========== 打印样式 ========== */
@media print {
    .header,
    .footer,
    .back-to-top,
    .scroll-indicator,
    .modal,
    .nav-cta,
    .hamburger {
        display: none !important;
    }
    
    .section {
        page-break-inside: avoid;
    }
}

/* ========== 滚动进度条 ========== */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: var(--gradient-primary);
    z-index: calc(var(--z-index-sticky) + 1);
    transition: width 0.1s linear;
    box-shadow: 0 0 10px rgba(22, 119, 255, 0.5);
}

/* ========== 装饰分割 ========== */
.section-divider {
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 80px;
    overflow: hidden;
}

.section-divider svg {
    position: absolute;
    bottom: 0;
    width: 100%;
    height: 80px;
}

/* ========== 外拍服务说明 ========== */
.shooting-section {
    background: var(--bg-white);
}

.shooting-tabs {
    width: 100%;
    margin: 0 auto;
}

.shooting-tab-nav {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-2xl);
    background: var(--bg-gray-100);
    padding: var(--spacing-xs);
    border-radius: var(--radius-full);
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
}

.shooting-tab-btn {
    padding: var(--spacing-sm) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    border: none;
    background: transparent;
    cursor: pointer;
}

.shooting-tab-btn.active {
    background: var(--gradient-primary);
    color: var(--text-white);
    box-shadow: var(--shadow-md);
}

.shooting-tab-btn:hover:not(.active) {
    color: var(--color-primary);
}

.shooting-tab-content {
    display: none;
    animation: fadeIn 0.5s ease;
}

.shooting-tab-content.active {
    display: block;
}

/* 服务卡片网格布局 */
.service-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    align-items: stretch;
}

/* 服务卡片v2样式 - 参考合作套餐体系 */
.service-card-v2 {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.service-card-v2::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.service-card-v2:hover::before {
    transform: scaleX(1);
}

.service-card-v2:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary);
}

.service-card-v2 .service-card-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, rgba(22, 119, 255, 0.1) 0%, rgba(0, 198, 255, 0.1) 100%);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    color: var(--color-primary);
    transition: all var(--transition-base);
    flex-shrink: 0;
}

.service-card-v2:hover .service-card-icon {
    background: var(--gradient-primary);
    color: var(--text-white);
    transform: scale(1.1);
}

.service-card-v2 .service-card-icon svg {
    width: 32px;
    height: 32px;
}

.service-card-v2 h4 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.service-card-v2 .shooting-price {
    display: flex;
    align-items: baseline;
    margin-bottom: var(--spacing-md);
}

.service-card-v2 .shooting-price .currency {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-primary);
}

.service-card-v2 .shooting-price .amount {
    font-size: var(--font-size-3xl);
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin: 0 var(--spacing-xs);
}

.service-card-v2 .shooting-price .period {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
}

.service-card-v2 p {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.service-card-v2 .service-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
}

.service-card-v2 .service-tags span {
    background: var(--bg-gray-100);
    color: var(--text-secondary);
    font-size: var(--font-size-xs);
    padding: 4px 10px;
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    font-weight: 500;
}

.service-card-v2:hover .service-tags span {
    background: rgba(22, 119, 255, 0.1);
    color: var(--color-primary);
}

.service-card-v2 .service-list {
    list-style: none;
    padding: 0;
    margin: 0;
    margin-top: auto;
}

.service-card-v2 .service-list li {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    padding: var(--spacing-sm) 0;
    padding-left: var(--spacing-lg);
    position: relative;
    display: flex;
    align-items: center;
}

.service-card-v2 .service-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-success);
    font-weight: 700;
}

.shooting-sub-tabs {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    flex-wrap: wrap;
}

.sub-tab-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--bg-white);
    transition: all var(--transition-base);
    cursor: pointer;
}

.sub-tab-btn.active {
    background: var(--color-primary);
    color: var(--text-white);
    border-color: var(--color-primary);
}

.sub-tab-btn:hover:not(.active) {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.shooting-sub-content {
    display: none;
}

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

.service-detail {
    background: var(--bg-gray-50);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
}

.service-detail-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.service-detail-header .service-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    margin-bottom: 0;
    flex-shrink: 0;
}

.service-detail-header .service-icon svg {
    width: 32px;
    height: 32px;
}

.service-detail-header h4 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.service-intro {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    padding-left: 78px;
}

.service-features {
    margin-bottom: var(--spacing-lg);
}

.service-features .feature-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) 0;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.service-features .feature-icon {
    color: var(--color-primary);
    flex-shrink: 0;
    margin-top: 2px;
}

.service-suitable {
    background: rgba(22, 119, 255, 0.05);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-sm);
}

.service-suitable .suitable-label {
    font-weight: 600;
    color: var(--color-primary);
    margin-right: var(--spacing-xs);
}

/* 移动端适配 */
@media (max-width: 768px) {
    .shooting-tab-nav {
        flex-wrap: wrap;
        width: 100%;
    }
    
    .shooting-tab-btn {
        flex: 1;
        min-width: 100px;
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-sm);
        text-align: center;
    }
    
    .shooting-sub-tabs {
        flex-wrap: wrap;
        gap: var(--spacing-xs);
    }
    
    .sub-tab-btn {
        padding: var(--spacing-xs) var(--spacing-md);
        font-size: var(--font-size-xs);
    }
    
    .service-detail {
        padding: var(--spacing-lg);
    }
    
    .service-detail-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
    
    .service-detail-header .service-icon {
        width: 50px;
        height: 50px;
    }
    
    .service-detail-header .service-icon svg {
        width: 28px;
        height: 28px;
    }
    
    .service-intro {
        padding-left: 0;
    }
    
    .service-cards {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
}

/* ========== 图片放大预览 ========== */
.image-lightbox {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    visibility: hidden;
    opacity: 0;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.image-lightbox.active {
    visibility: visible;
    opacity: 1;
}

.image-lightbox-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(8px);
}

.image-lightbox-close {
    position: absolute;
    top: 24px;
    right: 24px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
    transition: all 0.2s ease;
}

.image-lightbox-close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

.image-lightbox-close svg {
    width: 24px;
    height: 24px;
}

.image-lightbox-img {
    max-width: 90vw;
    max-height: 90vh;
    object-fit: contain;
    z-index: 1;
    cursor: zoom-out;
    user-select: none;
}

.carousel-slide img {
    cursor: zoom-in;
}

/* ========== 案例详情弹窗 ========== */
.case-detail-modal-container {
    max-width: 1000px;
    max-height: 90vh;
    overflow-y: auto;
}

.case-detail-desc {
    font-size: var(--font-size-base);
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
}

.case-detail-section {
    margin-bottom: var(--spacing-2xl);
}

.case-detail-section-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    padding-left: var(--spacing-sm);
    border-left: 4px solid var(--color-primary);
}

/* ========== 案例详情轮播 ========== */
.case-detail-carousel {
    position: relative;
    width: 100%;
    aspect-ratio: 16/10;
    background: var(--bg-gray-100);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.case-carousel-track {
    display: flex;
    width: 100%;
    height: 100%;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.case-carousel-slide {
    flex: 0 0 100%;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.case-carousel-img-wrapper {
    width: 100%;
    height: 100%;
    background-color: #1a1a1a;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.case-carousel-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    cursor: zoom-in;
    transition: transform 0.3s ease;
}

.case-carousel-img-wrapper img:hover {
    transform: scale(1.02);
}

.case-carousel-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: var(--font-size-xl);
}

/* 指示器 */
.case-carousel-indicators {
    position: absolute;
    bottom: 60px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: var(--spacing-sm);
    z-index: 2;
}

.case-carousel-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    padding: 0;
}

.case-carousel-dot:hover {
    background: rgba(255, 255, 255, 0.8);
}

.case-carousel-dot.active {
    background: #fff;
    width: 28px;
    border-radius: 5px;
}

/* 箭头按钮 */
.case-carousel-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 2;
    width: 44px;
    height: 44px;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    cursor: pointer;
    transition: all 0.3s ease;
    opacity: 0.7;
}

.case-carousel-arrow:hover {
    background: rgba(0, 0, 0, 0.7);
    opacity: 1;
}

.case-carousel-arrow svg {
    width: 20px;
    height: 20px;
}

.case-carousel-prev {
    left: var(--spacing-lg);
}

.case-carousel-next {
    right: var(--spacing-lg);
}

/* 图片说明文字 */
.case-carousel-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-md) var(--spacing-lg);
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
    color: #fff;
    font-size: var(--font-size-sm);
    text-align: center;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .case-detail-carousel {
        aspect-ratio: 4/3;
    }
    
    .case-carousel-indicators {
        bottom: 50px;
    }
    
    .case-carousel-arrow {
        width: 36px;
        height: 36px;
        opacity: 0.9;
    }
    
    .case-carousel-prev {
        left: var(--spacing-sm);
    }
    
    .case-carousel-next {
        right: var(--spacing-sm);
    }
}

.case-detail-video {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--bg-gray-100);
}

.case-detail-video .case-video-wrapper {
    aspect-ratio: 16/9;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: var(--font-size-lg);
    position: relative;
}

.case-detail-video .case-video-wrapper .play-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    backdrop-filter: blur(10px);
}

.case-detail-video .case-video-caption {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    background: var(--bg-white);
    text-align: center;
}

.case-detail-video .case-video-with-player {
    background: #000;
}

.case-detail-video .case-video-with-player video {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.case-supplementary-text {
    padding: var(--spacing-xl);
    background: var(--bg-white);
    border-radius: var(--radius-lg);
}

.case-supplementary-content {
    font-size: var(--font-size-base);
    line-height: 1.8;
    color: var(--text-secondary);
}

.case-video-item {
    margin-bottom: var(--spacing-lg);
}

.case-video-item:last-child {
    margin-bottom: 0;
}

@media (max-width: 768px) {
    .case-detail-images {
        grid-template-columns: 1fr;
    }
}