/* ==================== 全局样式 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 主色调 - 优雅的紫罗兰色系 */
    --primary-color: #7c3aed;
    --primary-dark: #6d28d9;
    --primary-light: #a78bfa;

    /* 辅助色 - 温暖的珊瑚粉 */
    --secondary-color: #f43f5e;
    --secondary-light: #fb7185;

    /* 点缀色 - 青柠绿 */
    --accent-color: #06b6d4;
    --success-color: #10b981;
    --warning-color: #f59e0b;

    /* 中性色 */
    --dark: #0f172a;
    --dark-light: #1e293b;
    --gray-dark: #475569;
    --gray: #64748b;
    --gray-light: #cbd5e1;
    --gray-lighter: #f1f5f9;
    --white: #ffffff;
    --background: #fafbfc;

    /* 渐变色 */
    --gradient-primary: linear-gradient(135deg, #7c3aed 0%, #a78bfa 50%, #f43f5e 100%);
    --gradient-secondary: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%);
    --gradient-hero: linear-gradient(180deg, #0f172a 0%, #1e293b 50%, #334155 100%);
    --gradient-card: linear-gradient(135deg, rgba(124, 58, 237, 0.1) 0%, rgba(244, 63, 94, 0.1) 100%);

    /* 阴影 - 更柔和 */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.15);
    --shadow-colored: 0 8px 30px rgba(124, 58, 237, 0.15);

    /* 圆角 */
    --radius-sm: 10px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;

    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}


body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB',
                 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--dark);
    background-color: var(--background);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ==================== 导航栏 ==================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    padding: 1rem 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.badge-ai {
    background: var(--gradient-primary);
    color: var(--white);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(124, 58, 237, 0.25);
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: var(--dark);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 8px 16px;
    border-radius: 8px;
}

.nav-links a:hover {
    color: var(--primary-color);
    background: rgba(124, 58, 237, 0.1);
}

.nav-links a.active {
    background: rgba(124, 58, 237, 0.12);
    color: var(--primary-color);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition);
}

.nav-links a:hover::after {
    width: 100%;
}

/* 移动端菜单按钮 */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--dark);
    border-radius: 3px;
    transition: var(--transition);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* ==================== 英雄区 ==================== */
.hero {
    padding: 140px 0 100px;
    background: var(--gradient-hero);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(124, 58, 237, 0.2), transparent 60%),
                radial-gradient(circle at 70% 50%, rgba(244, 63, 94, 0.15), transparent 60%);
    pointer-events: none;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content-center {
    text-align: center;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-block;
    background: rgba(124, 58, 237, 0.12);
    border: 1px solid rgba(167, 139, 250, 0.3);
    color: #c4b5fd;
    padding: 12px 28px;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 2rem;
    backdrop-filter: blur(10px);
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: #ffffff;
    letter-spacing: -0.02em;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.375rem;
    color: #cbd5e1;
    margin-bottom: 2.5rem;
    line-height: 1.8;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    margin-bottom: 4rem;
}

.hero-note {
    font-size: 0.875rem;
    color: #94a3b8;
    margin: 0;
}

.hero-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.stat-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border: 2px solid rgba(167, 139, 250, 0.25);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.stat-card:hover {
    border-color: rgba(167, 139, 250, 0.4);
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    background: rgba(255, 255, 255, 0.15);
}

.hero-stats {
    display: flex;
    gap: 3rem;
    margin-bottom: 2.5rem;
    justify-content: center;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.75rem;
    position: relative;
    z-index: 1;
    letter-spacing: -0.02em;
}

.stat-label {
    font-size: 0.9rem;
    color: #cbd5e1;
    font-weight: 600;
    position: relative;
    z-index: 1;
    transition: color 0.3s ease;
}

.stat-card:hover .stat-label {
    color: #ffffff;
}

/* ==================== 按钮 ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow-colored);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn-secondary {
    background: var(--white);
    color: var(--dark);
    border: 2px solid var(--gray-light);
}

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

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

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

.btn-large {
    padding: 16px 32px;
    font-size: 1.125rem;
}

/* ==================== 通用区块样式 ==================== */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--dark);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--gray);
}

/* ==================== 照片风格展示 ==================== */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

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

.lightbox-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
}

.lightbox-content {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.lightbox-image {
    max-width: 90%;
    max-height: 85%;
    object-fit: contain;
    border-radius: var(--radius-md);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.lightbox-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    color: var(--white);
    font-size: 2rem;
    font-weight: 300;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: rotate(90deg);
}

.lightbox-prev,
.lightbox-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    color: var(--white);
    font-size: 2rem;
    font-weight: 300;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.lightbox-prev {
    left: 2rem;
}

.lightbox-next {
    right: 2rem;
}

.lightbox-prev:hover,
.lightbox-next:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-50%) scale(1.1);
}

.lightbox-caption {
    position: absolute;
    bottom: 6rem;
    left: 50%;
    transform: translateX(-50%);
    color: var(--white);
    font-size: 1.125rem;
    text-align: center;
    padding: 0.75rem 1.5rem;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-md);
}

.lightbox-counter {
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%);
    color: var(--white);
    font-size: 0.875rem;
    opacity: 0.8;
}

/* ==================== 照片风格列表 ==================== */
.styles-section {
    padding: 80px 0;
    background: var(--background);
}

/* 类型切换标签 - 滑动指示器设计 */
.photo-type-tabs {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 3.5rem;
    padding: 8px;
    background: var(--background);
    border-radius: 60px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
    box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.05);
    position: relative;
}

/* 滑动背景指示器 */
.photo-type-tabs::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 8px;
    width: calc(50% - 12px);
    height: calc(100% - 16px);
    background: var(--gradient-primary);
    border-radius: 50px;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 6px 20px rgba(124, 58, 237, 0.35);
    z-index: 0;
}

/* 滑动到第二个标签 */
.photo-type-tabs:has(.photo-type-tab:nth-child(2).active)::before {
    transform: translateX(calc(100% + 8px));
}

.photo-type-tab {
    flex: 1;
    padding: 18px 48px;
    background: transparent;
    border: none;
    border-radius: 50px;
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--gray-dark);
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
    position: relative;
    z-index: 1;
}

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

.photo-type-tab.active {
    color: var(--white);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

/* 照片类型内容容器 */
.photo-type-content {
    display: none;
    animation: fadeIn 0.5s ease-in-out;
}

.photo-type-content.active {
    display: block;
}

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

/* 风格过滤按钮包装 - 用于居中 */
.style-filter-wrapper {
    display: flex;
    justify-content: center;
    margin-bottom: 3.5rem;
}

/* 风格过滤按钮 - 滑动指示器设计 */
.style-filter-buttons {
    display: inline-flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 0.4rem;
    padding: 6px;
    max-width: 95%;
    background: var(--background);
    border-radius: 60px;
    box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.05);
    position: relative;
}

/* 滑动背景指示器 */
.style-filter-buttons {
    --slider-left: 0px;
    --slider-width: 0px;
}

.style-filter-buttons::before {
    content: '';
    position: absolute;
    top: 6px;
    left: var(--slider-left, 6px);
    width: var(--slider-width, 0);
    height: calc(100% - 12px);
    background: var(--gradient-secondary);
    border-radius: 50px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 16px rgba(6, 182, 212, 0.35);
    z-index: 0;
    opacity: 0;
}

.style-filter-buttons.has-active::before {
    opacity: 1;
}

.style-filter-btn {
    padding: 10px 22px;
    background: transparent;
    border: none;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--gray-dark);
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
    position: relative;
    z-index: 1;
    margin: 0;
}

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

.style-filter-btn.active {
    color: var(--white);
    font-weight: 700;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

/* 按钮点击动画 */
.style-filter-btn:active {
    transform: scale(0.98);
    transition-duration: 0.1s;
}

/* 照片展示网格 */
.photo-showcase-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.photo-showcase-item {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    aspect-ratio: 9/16;
    cursor: pointer;
    width: 100%;
    background: var(--white);
}

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

.photo-showcase-item.original-photo {
    box-shadow: var(--shadow-md);
}

.photo-showcase-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* 原始照片标签 */
.original-photo-label {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    background: var(--gradient-primary);
    color: var(--white);
    padding: 14px;
    font-size: 0.9rem;
    font-weight: 700;
    text-align: center;
    z-index: 2;
    letter-spacing: 1px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

/* 风格标签 */
.photo-style-label {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(10px);
    color: var(--white);
    padding: 10px;
    font-size: 0.85rem;
    font-weight: 600;
    text-align: center;
    z-index: 2;
    opacity: 0;
    transform: translateY(-100%);
    transition: all 0.3s ease;
}

.photo-showcase-item:hover .photo-style-label {
    opacity: 1;
    transform: translateY(0);
}

/* 原始照片特殊样式 */
.original-photo {
    /* 边框已移除 */
}

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

/* ==================== 服务流程 ==================== */
.process-section {
    padding: 80px 0;
    background: var(--white);
    position: relative;
}

.process-steps {
    display: flex;
    justify-content: space-between;
    align-items: stretch;
    gap: 1.5rem;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.process-step {
    flex: 1;
    min-width: 200px;
    text-align: center;
    padding: 0;
    background: var(--white);
    border-radius: var(--radius-lg);
    position: relative;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid var(--gray-lighter);
    box-shadow: var(--shadow-md);
    overflow: visible;
}

/* 底部进度线连接 */
.process-step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 50%;
    right: -1.5rem;
    width: 1.5rem;
    height: 2px;
    background: linear-gradient(90deg, var(--gray-lighter) 0%, var(--gray-light) 50%, var(--gray-lighter) 100%);
    transform: translateY(-50%);
    z-index: -1;
}

/* 步骤编号标签条 */
.step-number {
    position: relative;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--gradient-primary);
    color: var(--white);
    padding: 14px;
    font-weight: 700;
    font-size: 0.9rem;
    text-align: center;
    letter-spacing: 1px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    z-index: 2;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

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

/* 图标容器 */
.step-icon {
    margin: 2rem 0 1rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    transition: transform 0.3s ease;
}

.step-icon svg {
    width: 100%;
    height: 100%;
    display: block;
}

.process-step h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--dark);
    font-weight: 700;
    padding: 0 1.5rem;
}

.process-step p {
    color: var(--gray);
    line-height: 1.8;
    font-size: 0.95rem;
    padding: 0 1.5rem 2rem;
}


/* 步骤进入动画 */
.process-step {
    animation: slideInUp 0.6s ease-out backwards;
}

.process-step:nth-child(1) { animation-delay: 0.1s; }
.process-step:nth-child(2) { animation-delay: 0.2s; }
.process-step:nth-child(3) { animation-delay: 0.3s; }
.process-step:nth-child(4) { animation-delay: 0.4s; }
.process-step:nth-child(5) { animation-delay: 0.2s; }
.process-step:nth-child(6) { animation-delay: 0.3s; }
.process-step:nth-child(7) { animation-delay: 0.4s; }

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==================== 价格方案 ==================== */
.pricing-section {
    padding: 80px 0;
    background: var(--background);
    position: relative;
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 360px));
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
    justify-content: center;
    padding: 0 20px;
}

.pricing-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 0;
    box-shadow: var(--shadow-md);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    border: 2px solid var(--gray-lighter);
    display: flex;
    flex-direction: column;
}

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

/* 推荐方案特殊样式 */
.pricing-card.featured {
    background: var(--white);
    border: 2px solid var(--gray-lighter);
    position: relative;
}

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

/* 定制方案特殊样式 */
.pricing-card.custom {
    background: var(--white);
    border: 2px solid var(--gray-lighter);
    position: relative;
}

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

/* 价格标签条 */
.pricing-label {
    position: relative;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--gradient-primary);
    color: var(--white);
    padding: 14px;
    font-weight: 700;
    font-size: 0.9rem;
    text-align: center;
    letter-spacing: 1px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    z-index: 2;
}

.pricing-card.custom .pricing-label {
    background: var(--gradient-secondary);
}

.pricing-card:not(.featured):not(.custom) .pricing-label {
    background: var(--gray-light);
    color: var(--gray-dark);
    text-shadow: none;
}

/* 内容区域 */
.pricing-content {
    padding: 2rem 2rem 2rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.pricing-header {
    text-align: center;
    margin-bottom: 1.25rem;
    position: relative;
}

.price-container {
    text-align: center;
    margin-bottom: 1.5rem;
    padding: 0.5rem 0;
}

.currency {
    font-size: 1.75rem;
    color: var(--gray-dark);
    font-weight: 700;
    vertical-align: super;
    margin-right: 0.25rem;
}

.price {
    font-size: 4rem;
    font-weight: 900;
    color: var(--dark);
    line-height: 1;
    letter-spacing: -0.03em;
}

.price-text {
    font-size: 3rem;
    font-weight: 800;
    color: var(--dark);
    line-height: 1;
    letter-spacing: -0.02em;
}

.pricing-card.featured .price {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.pricing-features {
    list-style: none;
    margin-bottom: auto;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.pricing-features li {
    padding: 0.75rem 1rem;
    color: var(--dark-light);
    font-size: 0.95rem;
    font-weight: 500;
    position: relative;
    line-height: 1.5;
    word-wrap: break-word;
    overflow-wrap: break-word;
    background: var(--gray-lighter);
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
    letter-spacing: 0.05em;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.pricing-features li:hover {
    background: var(--gray-light);
    transform: translateX(4px);
}

/* 普通方案的特征项 */
.pricing-card:not(.featured):not(.custom) .pricing-features li {
    color: var(--gray-dark);
    background: rgba(0, 0, 0, 0.03);
}

.pricing-card:not(.featured):not(.custom) .pricing-features li:hover {
    background: rgba(0, 0, 0, 0.06);
}

.pricing-card:not(.featured):not(.custom) .pricing-features li::before {
    content: '✗';
    font-weight: 800;
    color: #ef4444;
    font-size: 1.1rem;
    flex-shrink: 0;
}

/* 推荐方案的特征项（带勾选标记） */
.pricing-card.featured .pricing-features li {
    color: var(--dark);
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.08), rgba(244, 63, 94, 0.08));
    border: 1px solid rgba(124, 58, 237, 0.15);
}

.pricing-card.featured .pricing-features li:hover {
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.12), rgba(244, 63, 94, 0.12));
    border-color: rgba(124, 58, 237, 0.25);
}

.pricing-card.featured .pricing-features li::before {
    content: '✓';
    font-weight: 800;
    color: var(--success-color);
    font-size: 1.1rem;
    flex-shrink: 0;
}

/* 定制方案的特征项 */
.pricing-card.custom .pricing-features li {
    color: var(--dark);
    background: rgba(59, 130, 246, 0.08);
    border: 1px solid rgba(59, 130, 246, 0.15);
}

.pricing-card.custom .pricing-features li:hover {
    background: rgba(59, 130, 246, 0.12);
    border-color: rgba(59, 130, 246, 0.25);
}

.pricing-card.custom .pricing-features li::before {
    content: '★';
    font-weight: 800;
    color: var(--secondary-color);
    font-size: 1.1rem;
    flex-shrink: 0;
}

.pricing-card .btn {
    width: 100%;
    justify-content: center;
    margin-top: 1.5rem;
    padding: 16px 28px;
    font-size: 1.125rem;
    font-weight: 700;
}

.guarantee-badges {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 4rem;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    position: relative;
    z-index: 1;
    padding: 0 20px;
}

.guarantee-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    color: var(--dark);
    font-weight: 600;
    padding: 2rem 1rem;
    background: var(--white);
    border-radius: var(--radius-lg);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid var(--gray-lighter);
    box-shadow: var(--shadow-sm);
    text-align: center;
}

.guarantee-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(167, 139, 250, 0.3);
}

.guarantee-icon {
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.guarantee-icon svg {
    width: 100%;
    height: 100%;
    display: block;
}

.guarantee-item span:last-child {
    font-size: 0.95rem;
}

/* ==================== 常见问题 ==================== */
.faq-section {
    padding: 80px 0;
    background: var(--white);
}

.faq-list {
    max-width: 1200px;
    margin: 0 auto;
}

.faq-item {
    background: var(--white);
    border-radius: var(--radius-lg);
    margin-bottom: 1.25rem;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid var(--gray-lighter);
    box-shadow: var(--shadow-sm);
}

.faq-item:hover {
    box-shadow: var(--shadow-md);
    border-color: rgba(124, 58, 237, 0.2);
}

.faq-item.active {
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
    background: rgba(249, 247, 255, 1);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.75rem 2rem;
    cursor: pointer;
    user-select: none;
    transition: padding 0.3s ease;
}

.faq-item.active .faq-question {
    padding-bottom: 1.25rem;
}

.faq-question h3 {
    font-size: 1.125rem;
    color: var(--dark);
    font-weight: 600;
    transition: color 0.3s ease;
}

.faq-item.active .faq-question h3 {
    color: var(--primary-color);
}

.faq-toggle {
    font-size: 1.75rem;
    font-weight: 300;
    color: var(--primary-color);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(124, 58, 237, 0.1);
    flex-shrink: 0;
}

.faq-item:hover .faq-toggle {
    background: rgba(124, 58, 237, 0.15);
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
    background: var(--primary-color);
    color: var(--white);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 2rem 1.75rem;
    color: var(--gray-dark);
    line-height: 1.8;
    font-size: 1rem;
}

/* ==================== CTA区域 ==================== */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #7c3aed 0%, #a855f7 50%, #ec4899 100%);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.cta-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

.cta-content h2 {
    font-size: 2.75rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    letter-spacing: -0.02em;
}

.cta-content p {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    opacity: 0.95;
    font-weight: 500;
}

.cta-content .btn-primary {
    background: var(--white);
    color: var(--primary-color);
    font-size: 1.125rem;
    padding: 16px 40px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.cta-content .btn-primary:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

/* ==================== 页脚 ==================== */
.footer {
    background: #1a1a1a;
    color: #f5f5f7;
    padding: 60px 0 40px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-section {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--white);
}

.footer-desc {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 0.25rem;
}

.footer-tech {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
}

.footer-heading {
    font-size: 0.875rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.6);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.footer-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-list a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.2s ease;
}

.footer-list a:hover {
    color: var(--white);
}

.footer-bottom {
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
}

/* ==================== 响应式设计 ==================== */
/* 平板端 - 显示2列 */
@media (max-width: 1200px) {
    .pricing-cards {
        grid-template-columns: repeat(2, minmax(0, 400px));
        gap: 2rem;
    }
}

@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-image {
        margin: 0 auto;
        max-width: 500px;
    }

    .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
        max-width: 600px;
    }

    .hero-cta {
        justify-content: center;
    }

    .nav-links {
        gap: 1rem;
    }

    .process-arrow {
        display: none;
    }

    .pricing-cards {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .pricing-card.featured,
    .pricing-card.custom {
        transform: scale(1);
    }

    .pricing-card.featured:hover,
    .pricing-card.custom:hover {
        transform: scale(1.02) translateY(-10px);
    }

    .guarantee-badges {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.25rem;
        margin-top: 3rem;
    }

    .guarantee-item {
        padding: 1.25rem 0.75rem;
    }

    /* Photo styles section tablet responsive */
    .photo-showcase-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    /* 新组件响应式 */
    .hero-showcase {
        height: 450px;
    }

    .hero-slide .hero-title {
        font-size: 2rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .comparison-slider {
        aspect-ratio: 2/3;
    }

    .comparison-viewer {
        padding: 1.5rem;
    }
}

@media (max-width: 640px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        background: var(--white);
        flex-direction: column;
        align-items: center;
        padding: 2rem 0;
        gap: 1.5rem;
        box-shadow: var(--shadow-lg);
        transition: left 0.3s ease;
        z-index: 999;
    }

    .nav-links.active {
        left: 0;
    }

    .nav-links a {
        font-size: 1.125rem;
    }

    .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .stat-number {
        font-size: 1.5rem;
    }

    .stat-card {
        padding: 1.5rem 1rem;
    }

    .stat-label {
        font-size: 0.8rem;
    }

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

    .image-grid {
        grid-template-columns: 1fr;
    }

    .gallery-image {
        height: 300px;
    }

    .pricing-cards {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .pricing-card {
        padding: 2rem 1.5rem;
    }

    .price {
        font-size: 3.5rem;
    }

    .currency {
        font-size: 1.5rem;
    }

    .pricing-features {
        gap: 0.65rem;
    }

    .pricing-features li {
        padding: 0.65rem 0.85rem;
        font-size: 0.9rem;
    }

    .pricing-card.featured .pricing-features li {
        padding-left: 2.25rem;
    }

    .guarantee-badges {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
        margin-top: 2.5rem;
    }

    .guarantee-item {
        padding: 1.25rem 0.75rem;
    }

    .guarantee-icon {
        font-size: 2rem;
    }

    .guarantee-item span:last-child {
        font-size: 0.85rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2.5rem;
        text-align: left;
    }

    .footer-section:first-child {
        padding-bottom: 1rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .lightbox-close {
        top: 20px;
        right: 20px;
        font-size: 2rem;
    }

    /* Photo styles section responsive */
    .photo-type-tabs {
        flex-direction: row;
        gap: 0.75rem;
        padding: 6px;
        max-width: 90%;
    }

    .photo-type-tab {
        padding: 14px 28px;
        font-size: 0.95rem;
    }

    .style-filter-wrapper {
        margin-bottom: 2.5rem;
    }

    .style-filter-buttons {
        gap: 0.5rem;
        padding: 8px;
        max-width: 100%;
        border-radius: 20px;
    }

    .style-filter-btn {
        padding: 10px 18px;
        font-size: 0.85rem;
    }

    /* 移动端隐藏滑动指示器，使用简单的背景色 */
    .style-filter-buttons::before {
        display: none;
    }

    .style-filter-btn.active {
        background: var(--gradient-secondary);
        transform: none;
    }

    .photo-showcase-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
        padding: 0 10px;
    }

    .original-photo-label,
    .photo-style-label {
        font-size: 0.75rem;
        padding: 8px;
    }

    /* 新组件移动端优化 */
    .hero-showcase {
        height: 350px;
    }

    .hero-slide .hero-content {
        padding: 1.5rem;
    }

    .hero-slide .hero-title {
        font-size: 1.5rem;
    }

    .hero-description {
        font-size: 0.875rem;
    }

    .hero-controls {
        bottom: 1rem;
        right: 1rem;
        gap: 0.5rem;
    }

    .hero-nav {
        width: 35px;
        height: 35px;
        font-size: 1.25rem;
    }

    .comparison-title {
        font-size: 1.25rem;
    }

    .comparison-slider {
        aspect-ratio: 1/1;
    }

    .comparison-viewer {
        padding: 1rem;
    }

    .comparison-selector {
        gap: 0.5rem;
    }

    .selector-btn {
        padding: 0.5rem 1rem;
        font-size: 0.75rem;
    }

    .gallery-tabs {
        flex-direction: column;
    }

    .image-wrapper img {
        height: 300px;
    }

    .lightbox-prev,
    .lightbox-next {
        width: 40px;
        height: 40px;
        font-size: 1.5rem;
    }

    .lightbox-prev {
        left: 1rem;
    }

    .lightbox-next {
        right: 1rem;
    }

    .lightbox-caption {
        font-size: 0.875rem;
        bottom: 4rem;
    }

    .lightbox-counter {
        bottom: 2rem;
    }
}

/* ==================== 动画效果 ==================== */
/* 滚动进入动画 */
.animate-ready {
    opacity: 0;
    transform: translateY(30px);
}

.animate-in {
    animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

/* 为不同元素添加延迟 */
.style-group:nth-child(1).animate-in { animation-delay: 0s; }
.style-group:nth-child(2).animate-in { animation-delay: 0.1s; }
.style-group:nth-child(3).animate-in { animation-delay: 0.2s; }
.style-group:nth-child(4).animate-in { animation-delay: 0.3s; }

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.btn-primary:active {
    animation: pulse 0.3s ease;
}

/* 平滑滚动 */
html {
    scroll-behavior: smooth;
}

/* 选中文本样式 */
::selection {
    background: var(--primary-light);
    color: var(--white);
}

/* ==================== 超小屏幕优化 (400px以下) ==================== */
@media (max-width: 400px) {
    .hero-stats-grid {
        gap: 0.75rem;
        padding: 0 0.5rem;
    }

    .stat-card {
        padding: 1.25rem 0.75rem;
    }

    .stat-number {
        font-size: 1.25rem;
    }

    .stat-label {
        font-size: 0.75rem;
    }

    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .container {
        padding: 0 15px;
    }
}