/* ========================================
   北京幻梅科技有限公司 - 全新视觉风格
   专注于宣传展示，无购物产品元素
   ======================================== */

/* 全局重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #ec4899;
    --accent: #06b6d4;
    --dark: #0f172a;
    --dark-light: #1e293b;
    --gray: #64748b;
    --light: #f1f5f9;
    --white: #ffffff;
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);
    --gradient-dark: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
    --gradient-accent: linear-gradient(135deg, #06b6d4 0%, #3b82f6 50%, #8b5cf6 100%);
    --shadow-sm: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 10px 40px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.18);
    --shadow-glow: 0 0 60px rgba(99, 102, 241, 0.3);
    --radius-sm: 12px;
    --radius-md: 20px;
    --radius-lg: 32px;
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.8;
    color: var(--dark);
    background: var(--light);
    overflow-x: hidden;
}

/* 动态背景动画 */
@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}

@keyframes pulse {
    0%, 100% { opacity: 0.6; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.05); }
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
}

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

@keyframes borderGlow {
    0%, 100% { box-shadow: 0 0 20px rgba(99, 102, 241, 0.3); }
    50% { box-shadow: 0 0 40px rgba(99, 102, 241, 0.6); }
}

/* 容器 */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 5%;
}

/* 导航栏 */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

header.scrolled {
    background: rgba(15, 23, 42, 0.95);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5%;
    max-width: 1600px;
    margin: 0 auto;
}

.logo {
    font-size: 1.6rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 2.5rem;
    flex-wrap: wrap;
    justify-content: center;
}

nav a {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.6rem 1.2rem;
    border-radius: 50px;
    transition: var(--transition);
    position: relative;
}

nav a:hover {
    color: white;
    background: rgba(99, 102, 241, 0.3);
}

/* 主内容 */
main {
    padding-top: 80px;
}

/* 英雄区域 */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-dark);
    overflow: hidden;
    margin: 0;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 80%, rgba(99, 102, 241, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(236, 72, 153, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(6, 182, 212, 0.1) 0%, transparent 70%);
    animation: pulse 8s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M50 50m-2 0a2 2 0 1 0 4 0a2 2 0 1 0-4 0' fill='rgba(255,255,255,0.05)'/%3E%3C/svg%3E");
    pointer-events: none;
}

.hero-decoration {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    z-index: 0;
}

.hero-decoration-1 {
    width: 600px;
    height: 600px;
    top: -200px;
    right: -200px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.4) 0%, transparent 70%);
    animation: float 15s ease-in-out infinite;
}

.hero-decoration-2 {
    width: 400px;
    height: 400px;
    bottom: -100px;
    left: -100px;
    background: radial-gradient(circle, rgba(236, 72, 153, 0.3) 0%, transparent 70%);
    animation: float 12s ease-in-out infinite reverse;
}

.hero-decoration-3 {
    width: 300px;
    height: 300px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: radial-gradient(circle, rgba(6, 182, 212, 0.2) 0%, transparent 70%);
    animation: float 10s ease-in-out infinite;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 1000px;
    padding: 0 2rem;
    animation: slideUp 1s ease-out;
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    color: white;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
    line-height: 1.2;
    text-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.hero h1 span {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% 200%;
    animation: gradientShift 5s ease infinite;
}

.hero p {
    font-size: clamp(1rem, 2vw, 1.4rem);
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 2.5rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.9;
}

.hero-btns {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 1rem 2.5rem;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn::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 ease;
}

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

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 10px 40px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 15px 50px rgba(99, 102, 241, 0.5);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-4px);
}

/* 区域头部 */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
    animation: slideUp 0.8s ease-out;
}

.section-header h2 {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.section-header p {
    font-size: 1.15rem;
    color: var(--gray);
    max-width: 600px;
    margin: 1.5rem auto 0;
}

/* 通用区块 */
section {
    padding: 6rem 0;
    position: relative;
}

/* 卡片网格 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

/* 通用卡片 */
.card {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: 2.5rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    animation: slideUp 0.8s ease-out;
    animation-fill-mode: both;
}

.card:nth-child(1) { animation-delay: 0.1s; }
.card:nth-child(2) { animation-delay: 0.2s; }
.card:nth-child(3) { animation-delay: 0.3s; }
.card:nth-child(4) { animation-delay: 0.4s; }
.card:nth-child(5) { animation-delay: 0.5s; }
.card:nth-child(6) { animation-delay: 0.6s; }

.card::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;
}

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

.card:hover {
    transform: translateY(-12px);
    box-shadow: var(--shadow-lg);
}

/* 服务卡片 */
.service-card {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: 3rem 2.5rem;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.service-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 0;
    background: linear-gradient(to top, rgba(99, 102, 241, 0.05), transparent);
    transition: height 0.4s ease;
}

.service-card:hover::after {
    height: 100%;
}

.service-card:hover {
    transform: translateY(-15px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(99, 102, 241, 0.2);
}

.service-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto 2rem;
    border-radius: 30px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2) 0%, rgba(139, 92, 246, 0.2) 100%);
}

.service-card h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
}

.service-card p {
    color: var(--gray);
    font-size: 1rem;
    line-height: 1.8;
    position: relative;
    z-index: 1;
}

/* 评测卡片 */
.review-card {
    background: var(--white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
}

.review-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.02) 0%, rgba(236, 72, 153, 0.02) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

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

.review-card:hover {
    transform: translateY(-12px);
    box-shadow: var(--shadow-lg);
}

.review-card img {
    width: 100%;
    height: 240px;
    object-fit: cover;
    transition: var(--transition);
}

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

.review-card .content {
    padding: 2rem;
    position: relative;
    z-index: 1;
}

.review-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 0.8rem;
    line-height: 1.5;
}

.review-card .rating {
    color: #f59e0b;
    font-size: 1.2rem;
    margin-bottom: 1rem;
    letter-spacing: 2px;
}

.review-card p {
    color: var(--gray);
    font-size: 0.95rem;
    line-height: 1.8;
}

/* 平台卡片 */
.platform-card {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: 2.5rem;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid transparent;
}

.platform-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-md);
    border-color: rgba(99, 102, 241, 0.3);
}

.platform-card img {
    width: 90px;
    height: 90px;
    object-fit: contain;
    margin-bottom: 1.5rem;
    transition: var(--transition);
}

.platform-card:hover img {
    transform: scale(1.1);
}

.platform-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 0.8rem;
}

.platform-card p {
    color: var(--gray);
    font-size: 0.95rem;
}

/* 域名卡片 */
.domain-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--radius-md);
    padding: 2.5rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
    backdrop-filter: blur(10px);
}

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

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

.domain-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-md);
}

.domain-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 1.2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid rgba(99, 102, 241, 0.1);
}

.domain-card ul {
    list-style: none;
}

.domain-card li {
    margin-bottom: 0.8rem;
}

.domain-card a {
    color: var(--gray);
    text-decoration: none;
    font-size: 0.95rem;
    transition: var(--transition);
    display: flex;
    align-items: center;
    padding: 0.5rem 0;
}

.domain-card a::before {
    content: '→';
    margin-right: 0.8rem;
    color: var(--primary);
    transition: var(--transition);
}

.domain-card a:hover {
    color: var(--primary);
    transform: translateX(5px);
}

.domain-card a:hover::before {
    transform: translateX(4px);
}

/* 统计区域 */
.stats-section {
    background: var(--gradient-dark);
    color: white;
    padding: 5rem 0;
    position: relative;
    overflow: hidden;
}

.stats-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 30% 50%, rgba(99, 102, 241, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 70% 50%, rgba(236, 72, 153, 0.2) 0%, transparent 50%);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    position: relative;
    z-index: 2;
}

.stat-item {
    text-align: center;
    padding: 2rem;
    animation: slideUp 0.8s ease-out;
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
}

/* 特色区域 */
.features-section {
    background: linear-gradient(180deg, var(--light) 0%, #e2e8f0 100%);
    padding: 6rem 0;
}

.feature-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-bottom: 5rem;
}

.feature-row:last-child {
    margin-bottom: 0;
}

.feature-row:nth-child(even) {
    direction: rtl;
}

.feature-row:nth-child(even) > * {
    direction: ltr;
}

.feature-visual {
    position: relative;
    height: 400px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.feature-visual::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary);
    opacity: 0.9;
}

.feature-visual-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: white;
    z-index: 2;
}

.feature-visual-content h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.feature-text h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 1.5rem;
}

.feature-text p {
    color: var(--gray);
    font-size: 1.1rem;
    line-height: 2;
    margin-bottom: 2rem;
}

/* 底部 */
/* 免责声明区域 */
.disclaimer {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.08) 0%, rgba(139, 92, 246, 0.08) 100%);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-md);
    padding: 2rem 2.5rem;
    margin: 3rem auto;
    max-width: 1000px;
    text-align: left;
}

.disclaimer-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.disclaimer-title::before {
    content: '⚠️';
}

.disclaimer-content {
    color: var(--gray);
    font-size: 0.95rem;
    line-height: 1.9;
}

.disclaimer-content strong {
    color: var(--dark);
    font-weight: 600;
}

.disclaimer-links {
    display: flex;
    gap: 1rem;
    margin-top: 1.2rem;
    flex-wrap: wrap;
}

.disclaimer-links a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    padding: 0.4rem 1rem;
    background: rgba(99, 102, 241, 0.1);
    border-radius: 50px;
    font-size: 0.9rem;
    transition: var(--transition);
}

.disclaimer-links a:hover {
    background: rgba(99, 102, 241, 0.2);
    transform: translateY(-2px);
}

/* 外链按钮样式 */
.external-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    background: var(--gradient-primary);
    color: white !important;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3);
}

.external-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.4);
}

.external-link::after {
    content: '↗';
    font-size: 0.85rem;
}

/* 平台比较卡片 */
.price-compare-card {
    background: white;
    border-radius: var(--radius-md);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.price-compare-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.price-compare-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
    border-color: rgba(99, 102, 241, 0.3);
}

.price-compare-card .platform-name {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 0.8rem;
}

.price-compare-card .price {
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
}

.price-compare-card .btn {
    width: 100%;
    justify-content: center;
    margin-top: 1rem;
}

footer {
    background: var(--dark);
    color: white;
    padding: 4rem 0 2rem;
    text-align: center;
}

footer p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 0.8rem;
}

footer a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.footer-links a {
    padding: 0.5rem 1rem;
    border-radius: 50px;
    background: rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

.footer-links a:hover {
    background: rgba(99, 102, 241, 0.3);
}

/* 关于区域 */
.about-section {
    background: var(--gradient-dark);
    color: white;
    position: relative;
    overflow: hidden;
}

.about-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 30%, rgba(99, 102, 241, 0.2) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(236, 72, 153, 0.15) 0%, transparent 40%);
}

.about-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.about-content h2 {
    color: white;
    margin-bottom: 2rem;
}

.about-content p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.2rem;
    line-height: 2;
}

/* 价值网格 */
.value-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.value-item {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-md);
    padding: 2.5rem;
    border: 1px solid rgba(255, 255, 255, 0.15);
    transition: var(--transition);
}

.value-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-10px);
    border-color: rgba(255, 255, 255, 0.3);
}

.value-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.value-item h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: white;
}

.value-item p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
    line-height: 1.8;
}

/* 表格样式 */
.comparison-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: white;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.comparison-table th {
    background: var(--gradient-primary);
    color: white;
    padding: 1.5rem;
    font-weight: 600;
    text-align: left;
}

.comparison-table td {
    padding: 1.5rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    color: var(--dark-light);
}

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

.comparison-table tr:hover td {
    background: rgba(99, 102, 241, 0.03);
}

/* 指南项 */
.guide-item {
    display: flex;
    align-items: flex-start;
    background: white;
    border-radius: var(--radius-md);
    padding: 2rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border-left: 4px solid transparent;
}

.guide-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(10px);
    border-left-color: var(--primary);
}

.guide-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1.5rem;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.guide-content h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 0.5rem;
}

.guide-content p {
    color: var(--gray);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* 分类标签 */
.category-tag {
    display: inline-block;
    padding: 0.6rem 1.4rem;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    border-radius: 50px;
    color: var(--primary);
    font-size: 0.9rem;
    font-weight: 500;
    margin-right: 0.8rem;
    margin-bottom: 0.8rem;
    transition: var(--transition);
    cursor: pointer;
}

.category-tag:hover {
    background: var(--gradient-primary);
    color: white;
    transform: translateY(-3px);
}

/* 品牌区域 */
.brand-section {
    background: white;
    padding: 5rem 0;
}

.brand-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 3rem;
    align-items: center;
    justify-items: center;
}

.brand-item {
    padding: 1.5rem 2rem;
    border-radius: var(--radius-sm);
    background: var(--light);
    transition: var(--transition);
    font-weight: 600;
    color: var(--gray);
}

.brand-item:hover {
    background: var(--gradient-primary);
    color: white;
    transform: scale(1.05);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .feature-row {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .feature-row:nth-child(even) {
        direction: ltr;
    }

    .feature-visual {
        height: 300px;
    }
}

@media (max-width: 768px) {
    nav ul {
        gap: 1rem;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

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

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

    .stat-number {
        font-size: 2.5rem;
    }

    section {
        padding: 4rem 0;
    }
}

@media (max-width: 480px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }

    nav ul {
        gap: 0.8rem;
    }

    nav a {
        padding: 0.4rem 0.8rem;
        font-size: 0.85rem;
    }

    .hero-btns {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

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

/* 动画类 */
.animate-float {
    animation: float 6s ease-in-out infinite;
}

.animate-pulse {
    animation: pulse 3s ease-in-out infinite;
}

.animate-glow {
    animation: borderGlow 2s ease-in-out infinite;
}

/* 玻璃态效果 */
.glass {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
}

/* 暗色主题变体 */
.dark-theme {
    background: var(--dark);
    color: white;
}

.dark-theme .section-header h2 {
    color: white;
}

.dark-theme .section-header p {
    color: rgba(255, 255, 255, 0.7);
}

/* 科技感线条背景 */
.tech-grid-bg {
    position: relative;
}

.tech-grid-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(rgba(99, 102, 241, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99, 102, 241, 0.05) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
}