:root {
    --primary-red: #C41E3A;
    --primary-dark-red: #A01830;
    --primary-darker-red: #8B1528;
    --primary-gold: #D4AF37;
    --primary-light-gold: #FFE066;
    --gold-gradient: linear-gradient(135deg, var(--primary-gold) 0%, #FFD700 100%);
    --red-gradient: linear-gradient(135deg, var(--primary-red) 0%, var(--primary-dark-red) 100%);
    
    /* 补充常用颜色变量 */
    --white: #FFFFFF;
    --light-gray: #FAF9F6;
    --medium-gray: #E8E4D9;
    --dark-gray: #666666;
    --darker-gray: #333333;
    --border-color: var(--medium-gray);
    
    /* 阴影变量 */
    --shadow-light: 0 2px 8px rgba(0,0,0,0.1);
    --shadow-medium: 0 5px 20px rgba(0,0,0,0.15);
    --shadow-heavy: 0 10px 40px rgba(0,0,0,0.2);
    --red-shadow: 0 5px 20px rgba(196, 30, 58, 0.3);
    --gold-shadow: 0 5px 20px rgba(212, 175, 55, 0.3);
    
    /* 动画变量 */
    --transition-fast: 0.3s;
    --transition-medium: 0.4s;
    --transition-slow: 0.6s;
    --ease-standard: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 平滑滚动 */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 100px; /* 考虑导航栏高度 */
}

body {
    font-family: "Microsoft YaHei", "SimHei", Arial, sans-serif;
    line-height: 1.8;
    color: var(--darker-gray);
    background: var(--light-gray);
    overflow-x: hidden;
}

/* 英雄区域标题高亮样式 */
.hero-highlight {
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: bold;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 25px;
}

/* 顶部导航 - 去模板化 */
.navbar {
    background: var(--primary-red);
    color: white;
    padding: 0;
    border-bottom: 4px solid var(--primary-gold);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 3px 20px rgba(196, 30, 58, 0.3);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 25px;
}

.logo-image {
    width: 240px;
    height: 65px;
    background: linear-gradient(135deg, var(--primary-gold) 0%, var(--primary-red) 100%);
    border: 3px solid white;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    box-shadow: 0 5px 20px rgba(0,0,0,0.25);
    position: relative;
    overflow: hidden;
}

.logo-image::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.2), transparent);
    transform: rotate(45deg);
    transition: all 0.6s;
}

.logo-image:hover::before {
    left: 100%;
}

.logo-image:hover {
    transform: scale(1.1) rotate(-2deg);
    border-color: var(--primary-light-gold);
    box-shadow: 0 8px 30px rgba(212, 175, 55, 0.5);
}

.logo-placeholder {
    color: white;
    text-align: center;
    font-size: 1.2rem;
    font-weight: bold;
    line-height: 1.4;
    letter-spacing: 5px;
    padding: 10px;
    position: relative;
    z-index: 1;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 8px;
}

.nav-links a {
    color: white;
    text-decoration: none;
    padding: 12px 25px;
    display: block;
    font-size: 1.05rem;
    font-weight: bold;
    letter-spacing: 2px;
    transition: all 0.3s;
    border: 2px solid transparent;
    border-radius: 8px;
    position: relative;
    overflow: hidden;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background: var(--primary-gold);
    transition: all 0.3s;
    transform: translateX(-50%);
}

.nav-links a:hover::after {
    width: 80%;
}

.nav-links a:hover {
    background: rgba(212, 175, 55, 0.25);
    border-color: var(--primary-gold);
    transform: translateY(-3px);
    box-shadow: 0 5px 20px rgba(212, 175, 55, 0.4);
}

/* 页面头部 - 错落布局 */
.page-header {
    background: linear-gradient(135deg, #C41E3A 0%, #A01830 50%, #8B1528 100%);
    color: white;
    padding: 100px 0 120px;
    text-align: center;
    border-bottom: 4px solid #D4AF37;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 60%;
    height: 200%;
    background: radial-gradient(circle, rgba(212,175,55,0.15) 0%, transparent 70%);
    transform: rotate(15deg);
}

.page-header h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    letter-spacing: 6px;
    font-weight: 900;
    position: relative;
    z-index: 1;
    text-shadow: 3px 3px 6px rgba(0,0,0,0.3);
}

.page-header p {
    font-size: 1.2rem;
    opacity: 0.95;
    letter-spacing: 2px;
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Banner - 非对称设计 */
.hero {
    background: linear-gradient(135deg, #C41E3A 0%, #A01830 50%, #8B1528 100%);
    color: white;
    padding: 100px 0 120px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(212,175,55,0.2) 0%, transparent 40%),
        radial-gradient(circle at 80% 20%, rgba(255,255,255,0.1) 0%, transparent 30%);
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    letter-spacing: 10px;
    font-weight: 900;
    text-align: center;
    text-shadow: 4px 4px 8px rgba(0,0,0,0.4);
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 45px;
    opacity: 0.95;
    letter-spacing: 3px;
    text-align: center;
}

.hero-buttons {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* 按钮 - 增加质感 */
.btn-primary {
    display: inline-block;
    background: var(--red-gradient);
    color: white;
    padding: 16px 45px;
    text-decoration: none;
    border: 2px solid var(--primary-gold);
    border-radius: 12px;
    font-weight: bold;
    font-size: 1.1rem;
    letter-spacing: 3px;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    box-shadow: 0 5px 20px rgba(196, 30, 58, 0.4);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255,255,255,0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-primary:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary:hover {
    transform: translateY(-5px) scale(1.05);
    border-color: var(--primary-light-gold);
    box-shadow: 0 10px 35px rgba(212, 175, 55, 0.5);
}

.btn-secondary {
    display: inline-block;
    background: transparent;
    color: white;
    padding: 16px 45px;
    text-decoration: none;
    border: 2px solid var(--primary-gold);
    border-radius: 12px;
    font-weight: bold;
    font-size: 1.1rem;
    letter-spacing: 3px;
    cursor: pointer;
    transition: all 0.4s;
    position: relative;
    overflow: hidden;
}

.btn-secondary::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(212,175,55,0.3), transparent);
    transition: left 0.5s;
}

.btn-secondary:hover::after {
    left: 100%;
}

.btn-secondary:hover {
    background: var(--primary-gold);
    color: var(--primary-red);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(212, 175, 55, 0.4);
}

/* 分类区域 - 破格布局 */
.categories {
    padding: 60px 0;
    background: white;
    margin-top: 0;
    position: relative;
    z-index: 2;
    box-shadow: 0 -10px 40px rgba(0,0,0,0.1);
    border-top: 4px solid #D4AF37;
    border-bottom: 4px solid #D4AF37;
}

.categories::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 20px;
    right: 20px;
    bottom: 20px;
    border: 2px dashed rgba(212,175,55,0.2);
    border-radius: 20px;
    pointer-events: none;
}

.categories h2 {
    text-align: center;
    margin-bottom: 50px;
    font-size: 2.2rem;
    color: #C41E3A;
    letter-spacing: 5px;
    padding-bottom: 20px;
    border-bottom: 3px solid #D4AF37;
    display: inline-block;
    position: relative;
    margin-top: 0;
}

.categories h2::after {
    content: '✦';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    color: #D4AF37;
    font-size: 1.5rem;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1100px;
    margin: 0 auto;
}

/* 文章分类标签 - 连接到对应分类的文章列表页 */
.category-card {
    background: linear-gradient(135deg, var(--light-gray) 0%, #f5f1e8 100%);
    padding: 40px 25px;
    border: 2px solid var(--primary-gold);
    text-align: center;
    text-decoration: none;
    color: var(--darker-gray);
    transition: all 0.4s var(--ease-bounce);
    border-radius: 15px;
    position: relative;
    overflow: hidden;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-red), var(--primary-gold), var(--primary-red));
    transform: scaleX(0);
    transition: transform 0.4s;
}

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

.category-card:hover {
    background: var(--red-gradient);
    color: white;
    border-color: var(--primary-red);
    transform: translateY(-12px) scale(1.03);
    box-shadow: 0 20px 50px rgba(196, 30, 58, 0.3);
}

.category-card:nth-child(2) {
    transform: translateY(-20px);
}

.category-card:nth-child(2):hover {
    transform: translateY(-32px) scale(1.03);
}

.category-card:nth-child(5) {
    transform: translateY(-15px);
}

.category-card:nth-child(5):hover {
    transform: translateY(-27px) scale(1.03);
}

.category-icon {
    font-size: 3.5rem;
    margin-bottom: 20px;
    display: block;
    transition: transform 0.4s;
}

.category-card:hover .category-icon {
    transform: scale(1.2) rotate(10deg);
}

.category-card h3 {
    margin-bottom: 15px;
    color: var(--primary-red);
    font-size: 1.4rem;
    letter-spacing: 3px;
    font-weight: bold;
    transition: color 0.4s;
}

.category-card:hover h3 {
    color: white;
}

.category-card p {
    color: var(--dark-gray);
    font-size: 0.95rem;
    line-height: 1.7;
    transition: color 0.4s;
}

.category-card:hover p {
    color: rgba(255,255,255,0.9);
}

/* 文章列表 - 杂志风格 */
.featured-articles, .articles-page {
    padding: 60px 0;
    background: #faf9f6;
    border-top: 4px solid #D4AF37;
    border-bottom: 4px solid #D4AF37;
    position: relative;
}

.featured-articles::before, .articles-page::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 20px;
    right: 20px;
    bottom: 20px;
    border: 2px dashed rgba(212,175,55,0.2);
    border-radius: 20px;
    pointer-events: none;
}

.featured-articles h2, .articles-page h2 {
    text-align: center;
    margin-bottom: 60px;
    font-size: 2.2rem;
    color: #C41E3A;
    letter-spacing: 5px;
    padding-bottom: 20px;
    border-bottom: 3px solid #D4AF37;
    display: inline-block;
    position: relative;
}

.featured-articles h2::after, .articles-page h2::after {
    content: '📝';
    position: absolute;
    bottom: -14px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 1.8rem;
}

.article-list, .article-list-full {
    max-width: 950px;
    margin: 0 auto;
}

.article-card, .article-card-full {
    background: white;
    padding: 40px;
    margin-bottom: 35px;
    border: 2px solid var(--border-color);
    border-left: 5px solid var(--primary-red);
    transition: all 0.4s var(--ease-standard);
    border-radius: 12px;
    position: relative;
    overflow: hidden;
}

.article-card::before, .article-card-full::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #C41E3A, #D4AF37, #C41E3A);
    transform: scaleX(0);
    transition: transform 0.4s;
}

.article-card:hover::before, .article-card-full:hover::before {
    transform: scaleX(1);
}

.article-card-full:hover {
    box-shadow: 0 15px 50px rgba(196, 30, 58, 0.18);
    transform: translateX(15px);
    border-color: #D4AF37;
    border-left-color: #C41E3A;
}

.article-card-full h2 a {
    color: var(--darker-gray);
    text-decoration: none;
    font-size: 1.5rem;
    line-height: 1.5;
    font-weight: bold;
    letter-spacing: 0.5px;
    transition: color 0.3s;
    display: block;
    margin-bottom: 15px;
}

.article-card h3 a:hover, .article-card-full h2 a:hover {
    color: var(--primary-red);
}

.article-card-full .excerpt {
    color: var(--dark-gray);
    margin: 25px 0;
    line-height: 1.8;
    font-size: 1.05rem;
    text-align: justify;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    /* 标准属性，用于支持现代浏览器 */
    line-clamp: 3;
    overflow: hidden;
}

.article-meta {
    display: flex;
    gap: 2rem;
    color: #999;
    font-size: 0.9rem;
    margin-top: 25px;
    padding-top: 25px;
    border-top: 2px dashed #e8e4d9;
    align-items: center;
    flex-wrap: wrap;
}

.article-meta .category {
    color: white;
    background: linear-gradient(135deg, #C41E3A 0%, #A01830 100%);
    padding: 6px 18px;
    border-radius: 20px;
    font-weight: bold;
    letter-spacing: 1px;
    box-shadow: 0 2px 8px rgba(196, 30, 58, 0.2);
    transition: transform 0.3s;
}

.article-meta .category:hover {
    transform: scale(1.05);
}

.read-more {
    display: inline-block;
    margin-top: 25px;
    color: var(--primary-red);
    text-decoration: none;
    font-weight: bold;
    font-size: 1.05rem;
    letter-spacing: 1px;
    padding: 10px 25px;
    border: 2px solid var(--primary-red);
    border-radius: 25px;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.read-more::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: var(--primary-red);
    transition: width 0.3s;
    z-index: -1;
}

.read-more::after {
    content: '→';
    position: absolute;
    right: 0;
    transition: transform 0.3s;
}

.read-more:hover::before {
    width: 100%;
}

.read-more:hover {
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(196, 30, 58, 0.3);
}

.read-more:hover::after {
    transform: translateX(5px);
}

.case-card a.read-more {
    color: #C41E3A;
    text-decoration: none;
    font-weight: bold;
    display: inline-block;
    margin-top: 20px;
    letter-spacing: 2px;
    position: relative;
    padding-right: 30px;
}

.center-btn {
    text-align: center;
    margin-top: 60px;
}

/* 成功案例 - 画廊式布局 */
.cases {
    padding: 60px 0;
    background: white;
    border-top: 4px solid #D4AF37;
    border-bottom: 4px solid #D4AF37;
    position: relative;
}

.cases::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 20px;
    right: 20px;
    bottom: 20px;
    border: 2px dashed rgba(212,175,55,0.2);
    border-radius: 20px;
    pointer-events: none;
}

.cases h2 {
    text-align: center;
    margin-bottom: 50px;
    font-size: 2.4rem;
    color: #C41E3A;
    letter-spacing: 6px;
    padding-bottom: 25px;
    border-bottom: 3px solid #D4AF37;
    display: inline-block;
    position: relative;
    margin-top: 0;
}

.cases h2::after {
    content: '⭐';
    position: absolute;
    bottom: -16px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 2rem;
}

.case-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 45px;
    max-width: 1200px;
    margin: 30px auto 0;
}

.case-card {
    background: #faf9f6;
    border: 3px solid var(--primary-gold);
    overflow: hidden;
    transition: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    border-radius: 20px;
    position: relative;
}

.case-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(196,30,58,0.1) 0%, transparent 50%);
    pointer-events: none;
}

.case-card:hover {
    transform: translateY(-15px) rotate(2deg) scale(1.02);
    box-shadow: 0 25px 60px rgba(196, 30, 58, 0.25);
    border-color: var(--primary-red);
}

/* 每列中间卡片向上移动 30px - 在 3 列网格中，第 2、5、8、11... 个卡片是中间列 */
.case-card:nth-child(3n+2) {
    transform: translateY(-30px);
}

.case-card:nth-child(3n+2):hover {
    transform: translateY(-45px) rotate(2deg) scale(1.02);
}

.case-image {
    height: 280px;
    background: linear-gradient(135deg, #C41E3A 0%, #A01830 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 4px solid #D4AF37;
    position: relative;
    overflow: hidden;
}

.case-image::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    50% { transform: translate(20%, 20%) rotate(10deg); }
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s;
    position: relative;
    z-index: 1;
}

.case-card:hover .case-image img {
    transform: scale(1.15);
}

.case-placeholder {
    color: white;
    text-align: center;
    font-size: 1.4rem;
    line-height: 1.8;
    letter-spacing: 2px;
    font-weight: bold;
    padding: 25px;
    position: relative;
    z-index: 1;
}

.case-info {
    padding: 30px;
    background: white;
    position: relative;
    z-index: 1;
}

.case-info h3 {
    color: var(--primary-red);
    margin-bottom: 18px;
    font-size: 1.4rem;
    letter-spacing: 3px;
    font-weight: bold;
    text-align: center;
    padding-bottom: 15px;
    border-bottom: 2px dashed var(--primary-gold);
}

.case-desc {
    color: var(--dark-gray);
    line-height: 2.1;
    margin-bottom: 20px;
    font-size: 1rem;
    text-align: justify;
}

.case-result {
    color: white;
    background: var(--red-gradient);
    padding: 12px 25px;
    font-weight: bold;
    font-size: 1.05rem;
    letter-spacing: 2px;
    text-align: center;
    border: 2px solid var(--primary-gold);
    border-radius: 10px;
    box-shadow: 0 4px 15px var(--red-shadow);
}

/* 案例缩略图样式 */
.case-thumbnails {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-top: 20px;
    padding: 15px;
    background: #f8f8f8;
    border-radius: 10px;
    border: 1px solid #e0e0e0;
}

.thumbnail-item {
    cursor: pointer;
    overflow: hidden;
    border-radius: 8px;
    border: 2px solid var(--primary-gold);
    transition: all 0.3s ease;
    aspect-ratio: 1;
}

.thumbnail-item:hover {
    transform: translateY(-5px) scale(1.05);
    border-color: var(--primary-red);
    box-shadow: 0 8px 20px rgba(196, 30, 58, 0.3);
}

.thumbnail-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 0.3s ease;
}

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

/* 图片放大弹窗 */
.image-modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: transparent;
    overflow: auto;
    backdrop-filter: none;
}

.modal-content {
    position: relative;
    margin: 5% auto;
    max-width: 90%;
    max-height: 85vh;
    background: transparent;
    animation: modalZoom 0.4s;
}

@keyframes modalZoom {
    from { transform: scale(0.8); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.modal-close {
    position: absolute;
    top: -50px;
    right: 0;
    color: #D4AF37;
    font-size: 45px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s;
    z-index: 10000;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.modal-close:hover {
    color: #C41E3A;
    transform: rotate(90deg) scale(1.2);
}

.modal-image {
    width: 100%;
    max-height: 75vh;
    object-fit: contain;
    display: block;
    margin: 0 auto;
    border-radius: 10px;
    box-shadow: 0 10px 50px rgba(0,0,0,0.5);
}

.modal-caption {
    text-align: center;
    color: white;
    padding: 25px;
    font-size: 1.3rem;
    letter-spacing: 3px;
    background: linear-gradient(135deg, rgba(196, 30, 58, 0.95) 0%, rgba(160, 24, 48, 0.95) 100%);
    border-top: 3px solid #D4AF37;
    border-radius: 0 0 10px 10px;
}

/* 微信二维码弹窗样式 */
.wechat-modal-content {
    background: linear-gradient(135deg, rgba(196, 30, 58, 0.98) 0%, rgba(160, 24, 48, 0.95) 100%);
    padding: 35px 30px;
    border-radius: 15px;
    box-shadow: 0 20px 100px rgba(0,0,0,0.5), 0 0 0 3px rgba(212, 175, 55, 0.3);
    border: 2px solid #D4AF37;
    max-width: 350px;
    width: 90%;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    backdrop-filter: blur(10px);
    animation: wechatModalSlide 0.4s ease-out;
}

@keyframes wechatModalSlide {
    from {
        transform: translate(-50%, -60%);
        opacity: 0;
    }
    to {
        transform: translate(-50%, -50%);
        opacity: 1;
    }
}

.wechat-modal-content .modal-close {
    top: 12px;
    right: 12px;
    color: rgba(255, 255, 255, 0.9);
    font-size: 32px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    transition: all 0.3s ease;
}

.wechat-modal-content .modal-close:hover {
    color: #D4AF37;
    transform: rotate(90deg) scale(1.2);
    text-shadow: 0 0 10px rgba(212, 175, 55, 0.8);
}

.wechat-modal-content h3 {
    color: white;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    margin-bottom: 25px !important;
    font-weight: bold;
}

.wechat-modal-content .modal-image {
    max-width: 280px !important;
    border: 3px solid #D4AF37;
    border-radius: 10px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.4);
}

.wechat-modal-content p {
    color: white;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.3);
    margin-top: 20px !important;
}

.wechat-modal-content button {
    background: linear-gradient(135deg, #D4AF37 0%, #C4A030 100%);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    padding: 12px 30px !important;
    border-radius: 8px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    text-shadow: 1px 1px 2px rgba(0,0,0,0.3);
}

.wechat-modal-content button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(212, 175, 55, 0.4);
    background: linear-gradient(135deg, #E5C050 0%, #D4B040 100%);
}

/* FAQ - 手风琴风格 */
.faq {
    padding: 60px 0;
    background: #faf9f6;
    border-top: 4px solid #D4AF37;
    border-bottom: 4px solid #D4AF37;
    position: relative;
}

.faq::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 20px;
    right: 20px;
    bottom: 20px;
    border: 2px dashed rgba(212,175,55,0.2);
    border-radius: 20px;
    pointer-events: none;
}

.faq h2 {
    text-align: center;
    margin-bottom: 50px;
    font-size: 2.2rem;
    color: #C41E3A;
    letter-spacing: 5px;
    padding-bottom: 20px;
    border-bottom: 3px solid #D4AF37;
    display: inline-block;
    position: relative;
    margin-top: 0;
}

.faq h2::after {
    content: '❓';
    position: absolute;
    bottom: -14px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 1.8rem;
}

.faq-list {
    max-width: 850px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    padding: 30px;
    border: 2px solid #D4AF37;
    margin-bottom: 20px;
    border-radius: 12px;
    transition: all 0.4s;
    position: relative;
    overflow: hidden;
}

.faq-item::before {
    content: '💡';
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 2rem;
    opacity: 0.3;
}

.faq-item:hover {
    border-color: var(--primary-red);
    box-shadow: 0 8px 30px rgba(196, 30, 58, 0.15);
    transform: translateX(10px);
}

.faq-item h3 {
    color: #C41E3A;
    margin-bottom: 15px;
    font-size: 1.15rem;
    letter-spacing: 1px;
    font-weight: bold;
    padding-right: 40px;
}

.faq-item p {
    color: var(--dark-gray);
    line-height: 2;
    text-align: justify;
}

/* CTA - 渐变背景 */
.cta {
    background: linear-gradient(135deg, #C41E3A 0%, #A01830 50%, #8B1528 100%);
    color: white;
    padding: 80px 0;
    text-align: center;
    border-top: 4px solid #D4AF37;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 60%;
    height: 200%;
    background: radial-gradient(circle, rgba(212,175,55,0.2) 0%, transparent 70%);
    transform: rotate(15deg);
}

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

.cta h2 {
    font-size: 2.2rem;
    margin-bottom: 20px;
    letter-spacing: 5px;
    font-weight: 900;
    text-shadow: 3px 3px 6px rgba(0,0,0,0.3);
}

.cta p {
    opacity: 0.95;
    margin-bottom: 30px;
    letter-spacing: 2px;
    font-size: 1.15rem;
}

/* 页脚 - 增加层次 */
/* 页脚 - 红色主题风格 */
.footer {
    background: linear-gradient(180deg, #C41E3A 0%, #A01830 50%, #8B1528 100%);
    color: rgba(255, 255, 255, 0.9);
    padding: 60px 0 0;
    text-align: center;
    border-top: 4px solid #D4AF37;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, #D4AF37, transparent);
}

.footer::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -10%;
    width: 60%;
    height: 200%;
    background: radial-gradient(circle, rgba(212,175,55,0.08) 0%, transparent 70%);
    transform: rotate(-15deg);
    pointer-events: none;
}

.footer-links {
    margin-bottom: 30px;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 30px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    padding: 10px 20px;
    transition: all 0.3s;
    letter-spacing: 2px;
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 8px;
    background: rgba(212, 175, 55, 0.05);
}

.footer-links a:hover {
    color: white;
    background: rgba(212,175,55,0.2);
    border-color: #D4AF37;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(212, 175, 55, 0.3);
}

.footer p {
    margin-top: 20px;
    font-size: 0.95rem;
    letter-spacing: 1px;
    color: rgba(255, 255, 255, 0.85);
}

.footer .disclaimer {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.8);
    margin-top: 15px;
    padding: 10px;
    background: rgba(255,255,255,0.1);
    border-radius: 8px;
    border: 1px solid rgba(212, 175, 55, 0.2);
    display: inline-block;
    backdrop-filter: blur(5px);
}

/* 友情链接 */
.footer-friendlinks {
    margin-top: 25px;
    padding-top: 20px;
    border-top: 2px solid rgba(212, 175, 55, 0.3);
}

.footer-friendlinks h3 {
    color: white;
    font-size: 1.1rem;
    margin-bottom: 20px;
    letter-spacing: 3px;
    font-weight: bold;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.friendlinks-grid {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
}

.friendlinks-grid a {
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    padding: 8px 18px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(212, 175, 55, 0.25);
    border-radius: 6px;
    font-size: 0.9rem;
    letter-spacing: 1px;
    transition: all 0.3s;
}

.friendlinks-grid a:hover {
    color: white;
    background: rgba(212,175,55,0.15);
    border-color: #D4AF37;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(212, 175, 55, 0.25);
}

/* 分类筛选 */
.category-filter {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    margin-bottom: 45px;
    justify-content: center;
}

.filter-btn {
    padding: 14px 32px;
    background: white;
    border: 2px solid #C41E3A;
    color: #C41E3A;
    text-decoration: none;
    border-radius: 30px;
    font-weight: bold;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
    font-size: 1rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.filter-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: #C41E3A;
    transition: width 0.4s;
    z-index: -1;
}

.filter-btn:hover::before, .filter-btn.active::before {
    width: 100%;
}

.filter-btn:hover, .filter-btn.active {
    color: white;
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(196, 30, 58, 0.35);
}

/* 分页 */
.pagination {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-top: 50px;
}

.page-btn {
    padding: 12px 25px;
    background: white;
    border: 2px solid #C41E3A;
    color: #C41E3A;
    text-decoration: none;
    border-radius: 10px;
    transition: all 0.4s;
    letter-spacing: 1px;
    font-weight: bold;
}

.page-btn:hover, .page-btn.active {
    background: #C41E3A;
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 5px 20px rgba(196, 30, 58, 0.3);
}

/* 文章详情 */
.article-detail-page {
    padding: 60px 0;
    background: white;
}

.breadcrumb {
    color: #999;
    margin-bottom: 30px;
    font-size: 0.95rem;
}

.breadcrumb a {
    color: #C41E3A;
    text-decoration: none;
    font-weight: bold;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.article-header {
    margin-bottom: 50px;
    padding-bottom: 30px;
    border-bottom: 3px solid #D4AF37;
}

.article-header h1 {
    font-size: 2.2rem;
    margin-bottom: 20px;
    line-height: 1.5;
    color: #C41E3A;
    letter-spacing: 2px;
    font-weight: 900;
}

/* 目录 */
.table-of-contents {
    background: linear-gradient(135deg, var(--light-gray) 0%, #f5f1e8 100%);
    padding: 30px;
    border: 2px solid #D4AF37;
    margin-bottom: 40px;
    border-radius: 12px;
}

.table-of-contents h3 {
    margin-bottom: 20px;
    color: #C41E3A;
    font-size: 1.2rem;
    letter-spacing: 2px;
    font-weight: bold;
}

.table-of-contents ul {
    list-style: square;
    padding-left: 30px;
}

.table-of-contents li {
    margin-bottom: 12px;
}

.table-of-contents a {
    color: var(--darker-gray);
    text-decoration: none;
    transition: color 0.3s;
    font-weight: 500;
}

.table-of-contents a:hover {
    color: #C41E3A;
}

/* 文章内容 */
.article-content {
    max-width: 100%;
    font-size: 1.1rem;
    line-height: 1.7; /* 从 2.1 调整为 1.7 */
}

.article-content p {
    margin-bottom: 25px; /* 从 30px 调整为 25px */
    text-align: justify;
    text-indent: 2em; /* 段首缩进 2 字符 */
}

/* 首段不缩进 */
.article-content > p:first-of-type {
    text-indent: 0;
}

.article-content h2 {
    margin: 55px 0 25px;
    color: #C41E3A;
    padding-bottom: 15px;
    border-bottom: 3px solid #D4AF37;
    font-size: 1.6rem;
    letter-spacing: 2px;
    font-weight: bold;
    text-indent: 0; /* 标题不缩进 */
}

.article-content h3 {
    margin: 40px 0 20px;
    color: var(--darker-gray);
    font-size: 1.25rem;
    letter-spacing: 1px;
    font-weight: bold;
    text-indent: 0; /* 标题不缩进 */
}

.article-content ul, .article-content ol {
    margin: 25px 0;
    padding-left: 35px;
    background: #faf9f6;
    padding: 20px 20px 20px 45px;
    border-left: 4px solid #C41E3A;
    border-radius: 6px;
}

.article-content li {
    margin-bottom: 12px; /* 从 15px 调整为 12px */
    line-height: 1.7; /* 从 2.0 调整为 1.7 */
    position: relative;
    padding-left: 5px;
}

.article-summary {
    background: linear-gradient(135deg, #faf9f6 0%, #f5f1e8 100%);
    padding: 35px;
    border: 2px solid #D4AF37;
    border-left: 5px solid #C41E3A;
    margin-top: 50px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(196, 30, 58, 0.1);
}

.article-summary h3 {
    color: #C41E3A;
    margin-bottom: 20px;
    font-size: 1.2rem;
    letter-spacing: 2px;
    font-weight: bold;
}

/* 重点内容高亮框 */
.article-content .highlight {
    background: linear-gradient(135deg, #fff5f5 0%, #ffe8e8 100%);
    border-left: 4px solid #C41E3A;
    padding: 20px 25px;
    margin: 30px 0;
    border-radius: 6px;
    box-shadow: 0 2px 10px rgba(196, 30, 58, 0.08);
    font-weight: 500;
}

/* 提示框 */
.article-content .tip {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border-left: 4px solid #0284c7;
    padding: 20px 25px;
    margin: 30px 0;
    border-radius: 6px;
    box-shadow: 0 2px 10px rgba(2, 132, 199, 0.08);
}

/* 警告框 */
.article-content .warning {
    background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
    border-left: 4px solid #d97706;
    padding: 20px 25px;
    margin: 30px 0;
    border-radius: 6px;
    box-shadow: 0 2px 10px rgba(217, 119, 6, 0.08);
}

/* 相关文章 */
.related-articles {
    margin-top: 60px;
    padding-top: 40px;
    border-top: 3px dashed #D4AF37;
}

.related-articles h3 {
    margin-bottom: 30px;
    color: #C41E3A;
    font-size: 1.4rem;
    letter-spacing: 3px;
    font-weight: bold;
    text-align: center;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.related-card {
    background: #faf9f6;
    padding: 25px;
    border: 2px solid #D4AF37;
    text-decoration: none;
    color: var(--darker-gray);
    transition: all 0.4s;
    border-radius: 12px;
}

.related-card:hover {
    background: #C41E3A;
    color: white;
    transform: translateY(-8px);
    box-shadow: 0 10px 30px rgba(196, 30, 58, 0.25);
}

.related-card h4 {
    color: #C41E3A;
    margin-bottom: 12px;
    font-size: 1rem;
    line-height: 1.6;
    font-weight: bold;
}

.related-card:hover h4 {
    color: white;
}

.related-card .date {
    color: #999;
    font-size: 0.85rem;
}

.related-card:hover .date {
    color: rgba(255,255,255,0.8);
}

.back-link {
    margin-top: 50px;
    padding-top: 25px;
    border-top: 2px solid var(--border-color);
}

.back-link a {
    color: #C41E3A;
    text-decoration: none;
    font-weight: bold;
    letter-spacing: 2px;
    font-size: 1.05rem;
}

.back-link a:hover {
    text-decoration: underline;
}

/* 关于页面 */
.about-page {
    padding: 80px 0;
}

.about-content {
    max-width: 950px;
    margin: 0 auto;
}

.about-content h2 {
    margin: 50px 0 25px;
    color: #C41E3A;
    font-size: 1.6rem;
    letter-spacing: 3px;
    padding-bottom: 15px;
    border-bottom: 2px solid #D4AF37;
    font-weight: bold;
}

.about-content p {
    margin-bottom: 25px;
    line-height: 2.1;
    text-align: justify;
    font-size: 1.05rem;
}

.features-grid, .stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin: 40px 0;
}

.feature-box, .stat-box {
    background: linear-gradient(135deg, #faf9f6 0%, #f5f1e8 100%);
    padding: 35px;
    border: 2px solid #D4AF37;
    text-align: center;
    border-radius: 15px;
    transition: all 0.4s;
}

.feature-box:hover, .stat-box:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(196, 30, 58, 0.15);
    border-color: #C41E3A;
}

.feature-box h3 {
    color: #C41E3A;
    margin-bottom: 15px;
    font-size: 1.2rem;
    letter-spacing: 2px;
    font-weight: bold;
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 900;
    color: #C41E3A;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
}

.stat-label {
    color: var(--dark-gray);
    font-size: 1rem;
    letter-spacing: 1px;
}

.disclaimer-box {
    background: #FFF8DC;
    padding: 30px;
    border: 2px solid #D4AF37;
    border-left: 5px solid #C41E3A;
    border-radius: 12px;
}

.disclaimer-box p {
    margin-bottom: 15px;
    color: var(--dark-gray);
    line-height: 2;
}

.cta-box {
    background: linear-gradient(135deg, #C41E3A 0%, #A01830 100%);
    color: white;
    padding: 50px;
    border: 3px solid #D4AF37;
    text-align: center;
    margin-top: 50px;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(196, 30, 58, 0.3);
}

.cta-box h2 {
    color: white;
    margin-bottom: 20px;
    letter-spacing: 4px;
    font-size: 1.8rem;
    font-weight: 900;
}

.cta-box p {
    margin-bottom: 30px;
    opacity: 0.95;
    letter-spacing: 2px;
    font-size: 1.1rem;
}

/* 联系页面 */
.contact-page {
    padding: 80px 0;
    background: #faf9f6;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    margin-bottom: 60px;
}

.contact-info, .contact-form-box {
    background: white;
    padding: 45px;
    border: 2px solid #D4AF37;
    border-radius: 15px;
    box-shadow: 0 5px 30px rgba(0,0,0,0.08);
}

.contact-info h2, .contact-form-box h2 {
    margin-bottom: 30px;
    color: #C41E3A;
    font-size: 1.5rem;
    letter-spacing: 3px;
    padding-bottom: 15px;
    border-bottom: 3px solid #D4AF37;
    font-weight: bold;
}

.contact-item {
    display: flex;
    gap: 25px;
    margin-bottom: 30px;
    align-items: center;
}

.contact-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
}

.contact-detail h3 {
    margin-bottom: 8px;
    color: var(--darker-gray);
    font-size: 1.1rem;
    letter-spacing: 1px;
    font-weight: bold;
}

.contact-detail p {
    color: #C41E3A;
    font-weight: 600;
    font-size: 1.1rem;
}

.service-time {
    color: #999;
    font-size: 0.9rem;
    margin-top: 5px;
}

.contact-form .form-group {
    margin-bottom: 25px;
}

.contact-form label {
    display: block;
    margin-bottom: 10px;
    color: var(--darker-gray);
    font-weight: 600;
    letter-spacing: 1px;
    font-size: 1rem;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: #C41E3A;
    box-shadow: 0 0 0 3px rgba(196, 30, 58, 0.1);
}

.form-tip {
    color: #999;
    font-size: 0.9rem;
    margin-top: 20px;
    text-align: center;
}

.contact-faq {
    background: white;
    padding: 50px;
    border: 2px solid #D4AF37;
    border-radius: 15px;
    box-shadow: 0 5px 30px rgba(0,0,0,0.08);
}

.contact-faq h2 {
    text-align: center;
    margin-bottom: 45px;
    color: #C41E3A;
    font-size: 1.6rem;
    letter-spacing: 3px;
    padding-bottom: 15px;
    border-bottom: 3px solid #D4AF37;
    font-weight: bold;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.faq-grid .faq-item {
    background: #faf9f6;
    padding: 30px;
    border: 2px solid #D4AF37;
    border-radius: 12px;
}

.faq-grid .faq-item h3 {
    color: #C41E3A;
    margin-bottom: 15px;
    font-size: 1.05rem;
    letter-spacing: 1px;
    font-weight: bold;
}

/* ========================================
   移动端专属优化
   ======================================== */

/* 汉堡菜单按钮 - 默认隐藏 */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 32px;
    height: 24px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
    margin-left: auto;
}

.mobile-menu-btn span {
    display: block;
    width: 100%;
    height: 3px;
    background: white;
    border-radius: 2px;
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: translateY(10.5px) rotate(45deg);
    background: #D4AF37;
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
    transform: translateX(-10px);
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: translateY(-10.5px) rotate(-45deg);
    background: #D4AF37;
}

/* 触摸反馈优化 */
@media (hover: none) and (pointer: coarse) {
    .category-card:hover,
    .case-card:hover,
    .article-card:hover,
    .article-card-full:hover,
    .btn-primary:hover,
    .btn-secondary:hover,
    .filter-btn:hover,
    .page-btn:hover,
    .related-card:hover,
    .feature-box:hover,
    .stat-box:hover {
        transform: none !important;
    }
    
    .category-card:active,
    .case-card:active,
    .article-card:active,
    .article-card-full:active {
        transform: scale(0.98) !important;
    }
    
    .btn-primary:active,
    .btn-secondary:active {
        transform: scale(0.95) !important;
    }
    
    .nav-links a:active,
    .filter-btn:active,
    .page-btn:active {
        background: rgba(212, 175, 55, 0.4) !important;
    }
}

/* 减少动画，提升性能 */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* 响应式 */
@media (max-width: 1024px) {
    .category-grid,
    .case-grid,
    .related-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .category-card:nth-child(2),
    .category-card:nth-child(5),
    .case-card:nth-child(2),
    .case-card:nth-child(5) {
        transform: none;
    }
    
    .hero h1 {
        font-size: 2.8rem;
    }
}

@media (max-width: 768px) {
    /* 导航栏移动端样式 */
    .mobile-menu-btn {
        display: flex;
    }
    
    .navbar .container {
        flex-wrap: wrap;
        padding: 15px 20px;
    }
    
    .logo-image {
        width: 180px;
        height: 55px;
        margin-right: auto;
    }
    
    .logo-placeholder {
        font-size: 0.95rem;
        letter-spacing: 2px;
    }
    
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: linear-gradient(135deg, #C41E3A 0%, #A01830 100%);
        flex-direction: column;
        padding: 80px 30px 30px;
        gap: 0;
        transition: right 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
        box-shadow: -10px 0 40px rgba(0,0,0,0.3);
        z-index: 1000;
        overflow-y: auto;
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .nav-links li {
        border-left: none;
        border-bottom: 1px solid rgba(255,255,255,0.2);
    }
    
    .nav-links a {
        padding: 18px 25px;
        text-align: left;
        font-size: 1.15rem;
        letter-spacing: 2px;
        color: white;
    }
    
    .nav-links a::after {
        display: none;
    }
    
    .nav-links a:hover {
        background: rgba(212, 175, 55, 0.3);
        transform: none;
        padding-left: 35px;
    }
    
    /* 遮罩层 */
    .nav-links.active::before {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0,0,0,0.5);
        z-index: -1;
    }
    
    .hero {
        padding: 80px 20px 120px;
    }
    
    .hero h1 {
        font-size: 2rem;
        letter-spacing: 5px;
    }
    
    .hero p {
        font-size: 1.1rem;
        letter-spacing: 2px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 20px;
    }
    
    .btn-primary, .btn-secondary {
        width: 100%;
        max-width: 280px;
        text-align: center;
    }
    
    /* 移动端微信二维码弹窗优化 */
    .wechat-modal-content {
        width: 95%;
        max-width: 320px;
        padding: 30px 20px;
        position: fixed;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        animation: wechatModalSlideMobile 0.4s ease-out;
    }
    
    /* 移动端文章页面优化 */
    .article-detail-page {
        padding: 30px 15px;
    }
    
    .article-header h1 {
        font-size: 1.6rem;
        letter-spacing: 1px;
    }
    
    .article-content {
        font-size: 1rem;
        line-height: 1.6; /* 移动端从 1.9 调整为 1.6 */
        padding: 0 5px;
    }
    
    .article-content p {
        margin-bottom: 18px; /* 移动端从 20px 调整为 18px */
        font-size: 1rem;
    }
    
    .article-content h2 {
        font-size: 1.3rem;
        margin: 40px 0 20px;
    }
    
    .article-content h3 {
        font-size: 1.1rem;
        margin: 30px 0 15px;
    }
    
    .article-content ul, .article-content ol {
        padding: 12px 15px 12px 35px; /* 移动端调整内边距 */
        font-size: 0.95rem;
    }
    
    .table-of-contents {
        padding: 20px;
        font-size: 0.95rem;
    }
    
    .related-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .back-link {
        margin-top: 30px;
        padding-top: 20px;
    }
    
    @keyframes wechatModalSlideMobile {
        from {
            transform: translate(-50%, -60%);
            opacity: 0;
        }
        to {
            transform: translate(-50%, -50%);
            opacity: 1;
        }
    }
    
    .wechat-modal-content h3 {
        font-size: 1.2rem !important;
    }
    
    .wechat-modal-content .modal-image {
        max-width: 240px !important;
    }
    
    .wechat-modal-content button {
        width: 100%;
        max-width: 280px;
    }
    
    .categories {
        padding: 60px 20px;
        margin-top: -40px;
    }
    
    .categories h2,
    .featured-articles h2,
    .cases h2,
    .faq h2 {
        font-size: 1.8rem;
        letter-spacing: 3px;
    }
    
    .category-grid,
    .case-grid,
    .related-grid,
    .features-grid,
    .stats-grid,
    .faq-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .category-card,
    .case-card {
        transform: none !important;
    }
    
    .case-image {
        height: 260px;
    }
    
    /* 移动端缩略图优化 */
    .case-thumbnails {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 8px;
        margin-top: 15px;
    }
    
    .thumbnail-item {
        width: 100%;
        height: 60px;
    }
    
    .thumbnail-item img {
        width: 100%;
        height: 100%;
    }
    
    .article-list,
    .article-list-full {
        padding: 0 20px;
    }
    
    .article-card,
    .article-card-full {
        padding: 25px;
    }
    
    .article-card h3 a,
    .article-card-full h2 a {
        font-size: 1.2rem;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .contact-info,
    .contact-form-box {
        padding: 35px;
    }
    
    .article-header h1 {
        font-size: 1.6rem;
        letter-spacing: 1px;
    }
    
    .article-content {
        padding: 0 20px;
        font-size: 1.05rem;
    }
    
    .modal-content {
        margin: 10% auto;
        width: 95%;
    }
    
    .modal-close {
        font-size: 40px;
        top: -45px;
    }
    
    .page-header {
        padding: 60px 0 80px;
    }
    
    .page-header h1 {
        font-size: 2rem;
        letter-spacing: 4px;
    }
    
    /* 页脚移动端适配 */
    .footer {
        padding: 60px 20px 40px;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 15px;
    }
    
    .footer-links a {
        padding: 12px 25px;
        font-size: 0.95rem;
    }
    
    .footer p,
    .footer .disclaimer {
        font-size: 0.85rem;
        padding: 12px;
    }
    
    /* 友情链接移动端适配 */
    .footer-friendlinks {
        margin-top: 30px;
        padding-top: 25px;
    }
    
    .friendlinks-grid {
        flex-direction: column;
        gap: 12px;
    }
    
    .friendlinks-grid a {
        padding: 10px 20px;
        text-align: center;
    }
    
    /* 文章列表页移动端优化 */
    .article-card-full {
        padding: 25px;
        margin-bottom: 25px;
    }
    
    .article-card-full h2 a {
        font-size: 1.2rem;
        line-height: 1.4;
    }
    
    .article-card-full .excerpt {
        font-size: 0.95rem;
        line-height: 1.7;
        margin: 18px 0;
    }
    
    .article-meta {
        flex-direction: column;
        gap: 12px;
        align-items: flex-start;
    }
    
    .read-more {
        width: 100%;
        text-align: center;
        margin-top: 20px;
        padding: 12px 20px;
    }
    
    .filter-btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    
    .category-filter {
        gap: 10px;
        margin-bottom: 30px;
    }
    
    .page-header {
        padding: 60px 0 80px;
    }
    
    .page-header h1 {
        font-size: 2rem;
        letter-spacing: 3px;
    }
    
    .page-header p {
        font-size: 1rem;
        padding: 0 15px;
    }
}

/* 超小屏幕优化（iPhone 等） */
@media (max-width: 480px) {
    .case-thumbnails {
        grid-template-columns: repeat(4, 1fr);
        gap: 6px;
    }
    
    .thumbnail-item {
        height: 50px;
    }
    
    .case-image {
        height: 220px;
    }
}

/* ===== 底部固定悬浮联系方式栏 ===== */
.fixed-contact-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    height: 50px;
    z-index: 9999;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
}

/* 心跳动画关键帧 */
@keyframes heartbeat {
    0% {
        transform: scale(1);
    }
    15% {
        transform: scale(1.12);
    }
    30% {
        transform: scale(1);
    }
    45% {
        transform: scale(1.12);
    }
    60% {
        transform: scale(1);
    }
    100% {
        transform: scale(1);
    }
}

/* 通用图标样式 */
.fixed-contact-bar .phone-icon,
.fixed-contact-bar .call-icon {
    width: 28px;
    height: 28px;
    margin-right: 10px;
    display: inline-block;
    vertical-align: middle;
    filter: brightness(0) invert(1); /* 白色图标 */
    animation: heartbeat 1.8s ease-in-out infinite;
    transform-origin: center center;
    object-fit: contain;
}

.fixed-contact-bar .phone-display {
    flex: 1;
    background: linear-gradient(135deg, #D4AF37, #FFD700);
    color: #C41E3A;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    font-weight: bold;
    text-decoration: none;
    transition: all 0.3s ease;
    border-right: 1px solid rgba(255, 255, 255, 0.2);
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: default;
    /* 防止长按时弹出菜单 */
    touch-action: manipulation;
}

.fixed-contact-bar .phone-display:hover {
    background: linear-gradient(135deg, #FFD700, #D4AF37);
    transform: translateY(-2px);
    box-shadow: 0 -3px 10px rgba(212, 175, 55, 0.4);
}

.fixed-contact-bar .call-button {
    flex: 1;
    background: linear-gradient(135deg, #C41E3A, #E02846);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    font-weight: bold;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.fixed-contact-bar .call-button:hover {
    background: linear-gradient(135deg, #E02846, #C41E3A);
    transform: translateY(-2px);
    box-shadow: 0 -3px 10px rgba(196, 30, 58, 0.4);
}

.fixed-contact-bar .call-button .call-icon {
    margin-right: 10px;
    width: 32px;
    height: 32px;
    object-fit: contain;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .fixed-contact-bar {
        height: 50px;
    }
    
    .fixed-contact-bar .phone-display {
        font-size: 1.2rem;
        cursor: pointer;
        -webkit-tap-highlight-color: transparent;
        -webkit-touch-callout: default;
        touch-action: manipulation;
    }
    
    .fixed-contact-bar .call-button {
        font-size: 0.95rem;
    }
}

/* 客户真实反馈区域 */
.testimonials-section {
    padding: 60px 20px;
    background: linear-gradient(135deg, var(--primary-red) 0%, var(--primary-dark-red) 100%);
    color: white;
    border-top: 4px solid #D4AF37;
    border-bottom: 4px solid #D4AF37;
    position: relative;
}

.testimonials-section::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 20px;
    right: 20px;
    bottom: 20px;
    border: 2px dashed rgba(212,175,55,0.2);
    border-radius: 20px;
    pointer-events: none;
}

.testimonials-section .section-title-wrapper h2 {
    color: white;
    text-align: center;
    margin: 0;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 30px auto 0;
}

.testimonial-card {
    background: rgba(255, 255, 255, 0.1);
    padding: 30px;
    border-radius: 15px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-8px);
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 15px 40px rgba(0,0,0,0.25);
}

.testimonial-content {
    font-style: italic;
    margin-bottom: 15px;
    line-height: 1.6;
    font-size: 0.95rem;
}

.testimonial-author {
    font-weight: bold;
    opacity: 0.9;
    font-size: 0.9rem;
}

/* 服务流程区域 */
.process-section {
    padding: 60px 20px;
    background: white;
    border-top: 4px solid #D4AF37;
    border-bottom: 4px solid #D4AF37;
    position: relative;
}

.process-section::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 20px;
    right: 20px;
    bottom: 20px;
    border: 2px dashed rgba(212,175,55,0.2);
    border-radius: 20px;
    pointer-events: none;
}

.process-section .section-title-wrapper h2 {
    color: var(--primary-dark-red);
    text-align: center;
    margin: 0;
}

.process-steps {
    display: flex;
    justify-content: center;
    max-width: 1400px;
    margin: 30px auto 0;
    flex-wrap: wrap;
    gap: 25px;
}

.step {
    flex: 1;
    min-width: 200px;
    max-width: 260px;
    text-align: center;
    padding: 25px 20px;
    position: relative;
    background: var(--light-gray);
    border-radius: 15px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 2px solid transparent;
}

.step:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(196, 30, 58, 0.15);
    border-color: var(--primary-red);
    background: linear-gradient(135deg, #fff5f5 0%, white 100%);
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--primary-red);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    margin: 0 auto 15px;
    box-shadow: 0 5px 15px rgba(196, 30, 58, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.step:hover .step-number {
    transform: scale(1.1);
    box-shadow: 0 8px 25px rgba(196, 30, 58, 0.4);
}

.step h3 {
    color: var(--primary-dark-red);
    font-size: 1.1rem;
    margin-bottom: 8px;
    transition: color 0.3s ease;
}

.step:hover h3 {
    color: var(--primary-red);
}

.step p {
    color: var(--dark-gray);
    font-size: 0.9rem;
    line-height: 1.6;
    transition: color 0.3s ease;
}

.step:hover p {
    color: var(--darker-gray);
}

.service-commitment {
    max-width: 1000px;
    margin: 60px auto 0;
    text-align: center;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .testimonials-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .process-steps {
        flex-direction: column;
        align-items: center;
    }
    
    .step {
        width: 100%;
        max-width: none;
    }
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 100px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-red) 0%, var(--primary-dark-red) 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    font-weight: bold;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    box-shadow: 0 5px 20px rgba(196, 30, 58, 0.4);
    z-index: 999;
}

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

.back-to-top:hover {
    background: linear-gradient(135deg, var(--primary-dark-red) 0%, var(--primary-darker-red) 100%);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(196, 30, 58, 0.5);
}

/* 移动端适配 */
@media (max-width: 768px) {
    .back-to-top {
        bottom: 80px;
        right: 20px;
        width: 45px;
        height: 45px;
        font-size: 1.5rem;
    }
}

/* ========================================
   通用弹窗样式 (WeChat Modal)
   ======================================== */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.7);
    opacity: 0;
    transition: opacity 0.3s ease;
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: #fefefe;
    margin: 10% auto;
    padding: 30px;
    border: 3px solid var(--primary-gold);
    width: 90%;
    max-width: 400px;
    border-radius: 15px;
    position: relative;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
}

.close-btn {
    color: #aaa;
    position: absolute;
    right: 20px;
    top: 10px;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: 0.3s;
}

.close-btn:hover {
    color: var(--primary-red);
}

.modal-content h3 {
    margin-bottom: 20px;
    color: var(--primary-red);
}

.modal-content img {
    max-width: 250px;
    height: auto;
    border-radius: 10px;
    margin-bottom: 20px;
    border: 1px solid #eee;
}

/* 兼容旧的类名 */
.image-modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.8);
}