/* ========================================
   嘉兴嘉乐网络科技有限公司 - GEO官网
   全局样式表
   深蓝白经典商务风格
======================================== */

/* ===== CSS 变量 ===== */
:root {
    --primary: #0d2b5e;
    --primary-light: #1a4fa0;
    --primary-lighter: #2b6fd6;
    --primary-dark: #061a3d;
    --accent: #c9a558;
    --accent-light: #dbb870;
    --bg: #ffffff;
    --bg-light: #f4f7fb;
    --bg-gray: #eef2f7;
    --text: #1a2238;
    --text-light: #5a6478;
    --text-lighter: #8993a8;
    --border: #e2e8f0;
    --border-light: #edf0f5;
    --white: #ffffff;
    --shadow-sm: 0 2px 8px rgba(13, 43, 94, 0.06);
    --shadow-md: 0 4px 20px rgba(13, 43, 94, 0.1);
    --shadow-lg: 0 8px 40px rgba(13, 43, 94, 0.15);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --transition: 0.3s ease;
    --header-height: 72px;
    --container: 1440px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "微软雅黑", sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

ul, ol {
    list-style: none;
}

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

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

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

/* ===== 布局容器 ===== */
.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 20px;
}

.container-wide {
    max-width: 1600px;
}

.section {
    padding: 80px 0;
}

.section-sm {
    padding: 50px 0;
}

.bg-light {
    background: var(--bg-light);
}

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

.bg-gradient {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
    color: var(--white);
}

/* ===== 排版 ===== */
.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header .eyebrow {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary-light);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 12px;
    padding: 4px 16px;
    background: rgba(26, 79, 160, 0.08);
    border-radius: 20px;
}

.section-header h2 {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--text);
    line-height: 1.3;
    margin-bottom: 16px;
}

.bg-primary .section-header h2,
.bg-gradient .section-header h2 {
    color: var(--white);
}

.section-header p {
    font-size: 1.05rem;
    color: var(--text-light);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
}

.bg-primary .section-header p,
.bg-gradient .section-header p {
    color: rgba(255, 255, 255, 0.8);
}

.bg-primary .section-header .eyebrow,
.bg-gradient .section-header .eyebrow {
    background: rgba(255, 255, 255, 0.12);
    color: var(--accent-light);
}

/* ===== 按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 36px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
    cursor: pointer;
    white-space: nowrap;
    line-height: 1.2;
}

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

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

.btn-accent {
    background: var(--accent);
    color: var(--white);
}

.btn-accent:hover {
    background: var(--accent-light);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(201, 165, 88, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.5);
}

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

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

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

.btn-lg {
    padding: 16px 44px;
    font-size: 1.1rem;
}

.btn-sm {
    padding: 10px 24px;
    font-size: 0.9rem;
}

/* ===== 导航栏 ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all var(--transition);
    border-bottom: 1px solid transparent;
}

.site-header.scrolled {
    box-shadow: var(--shadow-sm);
    border-bottom-color: var(--border-light);
}

.nav-container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 20px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary);
    flex-shrink: 0;
}

.logo-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.1rem;
    font-weight: 700;
    flex-shrink: 0;
}

.logo-text {
    line-height: 1.2;
}

.logo-text .logo-name {
    font-size: 1.1rem;
    color: var(--primary);
}

.logo-text .logo-sub {
    font-size: 0.7rem;
    color: var(--text-lighter);
    font-weight: 400;
    letter-spacing: 1px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-menu li a {
    display: block;
    padding: 8px 18px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text);
    border-radius: var(--radius-sm);
    transition: all var(--transition);
    position: relative;
}

.nav-menu li a:hover,
.nav-menu li a.active {
    color: var(--primary-light);
}

.nav-menu li a.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 3px;
    background: var(--primary-light);
    border-radius: 2px;
}

.nav-cta {
    margin-left: 12px;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 30px;
    height: 30px;
    justify-content: center;
    align-items: center;
}

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

.nav-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

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

.nav-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ===== Hero 区域 ===== */
.hero {
    position: relative;
    min-height: 600px;
    padding: 140px 0 80px;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
    color: var(--white);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60' viewBox='0 0 60 60'%3E%3Cg fill='none' stroke='%23ffffff' stroke-opacity='0.03' stroke-width='1'%3E%3Cpath d='M0 0h60v60H0z'/%3E%3C/g%3E%3C/svg%3E");
}

.hero::after {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(43, 111, 214, 0.3) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 720px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 30px;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
}

.hero-badge .dot {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.25;
    margin-bottom: 24px;
    letter-spacing: -0.5px;
}

.hero h1 .highlight {
    color: var(--accent);
    position: relative;
}

.hero-subtitle {
    font-size: 1.2rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 36px;
    max-width: 600px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: 48px;
    margin-top: 60px;
    padding-top: 36px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.hero-stat .stat-number {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--accent);
    line-height: 1.2;
}

.hero-stat .stat-label {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
}

/* 页面横幅（内页通用） */
.page-banner {
    position: relative;
    padding: 120px 0 60px;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
    color: var(--white);
    overflow: hidden;
}

.page-banner::after {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(43, 111, 214, 0.25) 0%, transparent 70%);
    border-radius: 50%;
}

.page-banner-content {
    position: relative;
    z-index: 2;
    max-width: 680px;
}

.page-banner h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.page-banner p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
}

.breadcrumb {
    margin-top: 20px;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
}

.breadcrumb a:hover {
    color: var(--accent);
}

.breadcrumb span {
    margin: 0 8px;
}

/* ===== 卡片 ===== */
.card {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: 36px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    transition: all var(--transition);
    height: 100%;
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-6px);
    border-color: var(--primary-lighter);
}

.card-icon {
    width: 60px;
    height: 60px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    background: linear-gradient(135deg, rgba(26, 79, 160, 0.1) 0%, rgba(43, 111, 214, 0.05) 100%);
    color: var(--primary-light);
}

.card-icon svg {
    width: 30px;
    height: 30px;
}

.card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text);
}

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

.card-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 16px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary-light);
    transition: gap var(--transition);
}

.card-link:hover {
    gap: 12px;
    color: var(--primary);
}

/* 网格 */
.grid {
    display: grid;
    gap: 28px;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ===== GEO 特性区域 ===== */
.geo-feature {
    display: flex;
    gap: 60px;
    align-items: center;
}

.geo-feature-text h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text);
}

.geo-feature-text p {
    font-size: 1.05rem;
    color: var(--text-light);
    line-height: 1.9;
    margin-bottom: 24px;
}

.geo-feature-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.geo-feature-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 1rem;
    color: var(--text);
    line-height: 1.7;
}

.geo-feature-list li::before {
    content: '';
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--primary-light);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
    margin-top: 2px;
}

.geo-feature-visual {
    flex: 1;
    max-width: 680px;
    flex-shrink: 0;
}

/* ===== 对比表 ===== */
.compare-table {
    width: 100%;
    border-collapse: collapse;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    background: var(--white);
}

.compare-table th,
.compare-table td {
    padding: 18px 24px;
    text-align: left;
    border-bottom: 1px solid var(--border-light);
    font-size: 0.95rem;
}

.compare-table thead th {
    background: var(--primary);
    color: var(--white);
    font-weight: 600;
    font-size: 0.95rem;
}

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

.compare-table tbody tr:hover {
    background: var(--bg-light);
}

.compare-table .col-label {
    font-weight: 600;
    color: var(--text);
    width: 22%;
}

.compare-table .check {
    color: #2d8a4e;
    font-weight: 600;
}

.compare-table .cross {
    color: #c0392b;
    font-weight: 600;
}

.compare-table .partial {
    color: var(--text-lighter);
}

/* ===== 服务流程 ===== */
.process-steps {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    position: relative;
}

.process-steps::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 10%;
    right: 10%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-light), var(--accent));
    opacity: 0.3;
}

.process-step {
    flex: 1;
    text-align: center;
    position: relative;
    z-index: 2;
}

.process-step-num {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    border-radius: 50%;
    background: var(--white);
    border: 3px solid var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}

.process-step:hover .process-step-num {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
    transform: scale(1.08);
}

.process-step h4 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text);
}

.process-step p {
    font-size: 0.88rem;
    color: var(--text-light);
    line-height: 1.7;
    padding: 0 8px;
}

/* ===== 合作伙伴 Logo 墙 ===== */
.partner-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
}

.partner-logo {
    width: 160px;
    height: 70px;
    border-radius: var(--radius-sm);
    background: var(--white);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-light);
    transition: all var(--transition);
    padding: 10px;
    text-align: center;
}

.partner-logo:hover {
    border-color: var(--primary-lighter);
    color: var(--primary);
    box-shadow: var(--shadow-sm);
    transform: translateY(-3px);
}

/* ===== FAQ 手风琴 ===== */
.faq-list {
    max-width: 820px;
    margin: 0 auto;
}

.faq-item {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    overflow: hidden;
    transition: all var(--transition);
}

.faq-item.active {
    box-shadow: var(--shadow-md);
    border-color: var(--primary-lighter);
}

.faq-question {
    padding: 22px 28px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text);
    user-select: none;
}

.faq-question .faq-icon {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--bg-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
    color: var(--primary);
    font-size: 1.2rem;
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
    padding: 0 28px;
}

.faq-item.active .faq-answer {
    max-height: 400px;
    padding: 0 28px 22px;
}

.faq-answer p {
    color: var(--text-light);
    line-height: 1.9;
    font-size: 0.95rem;
}

/* ===== 表单 ===== */
.form-group {
    margin-bottom: 22px;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
}

.form-group label .required {
    color: #e74c3c;
    margin-left: 2px;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    color: var(--text);
    background: var(--white);
    transition: all var(--transition);
    outline: none;
}

.form-control:focus {
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(26, 79, 160, 0.1);
}

.form-control::placeholder {
    color: var(--text-lighter);
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-note {
    font-size: 0.85rem;
    color: var(--text-lighter);
    margin-top: 8px;
}

.form-success {
    display: none;
    padding: 16px 20px;
    background: #e8f5e9;
    border: 1px solid #a5d6a7;
    border-radius: var(--radius-sm);
    color: #2e7d32;
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.form-success.show {
    display: block;
    animation: fadeIn 0.4s ease;
}

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

/* ===== 联系信息卡 ===== */
.contact-info-card {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: 36px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    height: 100%;
}

.contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px 0;
    border-bottom: 1px solid var(--border-light);
}

.contact-info-item:last-child {
    border-bottom: none;
}

.contact-info-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border-radius: 10px;
    background: linear-gradient(135deg, rgba(26, 79, 160, 0.08) 0%, rgba(43, 111, 214, 0.04) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-light);
}

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

.contact-info-text h4 {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-lighter);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.contact-info-text p,
.contact-info-text a {
    font-size: 1.05rem;
    color: var(--text);
    font-weight: 500;
}

.contact-info-text a:hover {
    color: var(--primary-light);
}

/* ===== 时间线 ===== */
.timeline {
    position: relative;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 12px;
    top: 8px;
    bottom: 8px;
    width: 2px;
    background: linear-gradient(180deg, var(--primary-light), var(--border));
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
    padding-left: 24px;
}

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

.timeline-item::before {
    content: '';
    position: absolute;
    left: -34px;
    top: 6px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--white);
    border: 3px solid var(--primary-light);
    z-index: 2;
}

.timeline-year {
    display: inline-block;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 6px;
}

.timeline-content h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text);
}

.timeline-content p {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.8;
}

/* ===== 案例/新闻列表项 ===== */
.article-card {
    background: var(--white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.article-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-6px);
    border-color: var(--primary-lighter);
}

.article-card-img {
    width: 100%;
    height: 200px;
    overflow: hidden;
    position: relative;
}

.article-card-img .img-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: rgba(255, 255, 255, 0.9);
}

.article-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.article-card:hover .article-card-img img {
    transform: scale(1.06);
}

.article-card-body {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.article-tag {
    display: inline-block;
    padding: 3px 12px;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--primary-light);
    background: rgba(26, 79, 160, 0.08);
    border-radius: 4px;
    margin-bottom: 12px;
    align-self: flex-start;
}

.article-card-body h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text);
    line-height: 1.5;
    transition: color var(--transition);
}

.article-card:hover h3 {
    color: var(--primary-light);
}

.article-card-body p {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 16px;
    flex: 1;
}

.article-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--text-lighter);
    padding-top: 16px;
    border-top: 1px solid var(--border-light);
}

.article-meta span {
    display: flex;
    align-items: center;
    gap: 6px;
}

/* 筛选标签 */
.filter-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin-bottom: 40px;
}

.filter-tab {
    padding: 8px 22px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-light);
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 30px;
    cursor: pointer;
    transition: all var(--transition);
}

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

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

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 50px;
}

.pagination a {
    min-width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 12px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-light);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.pagination a:hover {
    border-color: var(--primary-lighter);
    color: var(--primary);
}

.pagination a.active {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

/* ===== CTA 区域 ===== */
.cta-section {
    position: relative;
    padding: 70px 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: var(--white);
    overflow: hidden;
}

.cta-section::after {
    content: '';
    position: absolute;
    top: -80px;
    right: -80px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.06) 0%, transparent 70%);
    border-radius: 50%;
}

.cta-content {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    flex-wrap: wrap;
}

.cta-text h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.cta-text p {
    font-size: 1.05rem;
    color: rgba(255, 255, 255, 0.8);
}

/* ===== 文章详情页 ===== */
.article-detail {
    max-width: 820px;
    margin: 0 auto;
}

.article-detail-header {
    margin-bottom: 36px;
    padding-bottom: 28px;
    border-bottom: 1px solid var(--border);
}

.article-detail-header .article-tag {
    margin-bottom: 16px;
}

.article-detail-header h1 {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 20px;
    color: var(--text);
}

.article-detail-meta {
    display: flex;
    align-items: center;
    gap: 24px;
    font-size: 0.9rem;
    color: var(--text-lighter);
}

.article-detail-meta span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.article-detail-body {
    font-size: 1.05rem;
    line-height: 2;
    color: var(--text);
}

.article-detail-body h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 40px 0 20px;
    padding-left: 16px;
    border-left: 4px solid var(--primary-light);
}

.article-detail-body h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin: 32px 0 16px;
    color: var(--text);
}

.article-detail-body p {
    margin-bottom: 24px;
}

.article-detail-body ul,
.article-detail-body ol {
    margin-bottom: 24px;
    padding-left: 24px;
}

.article-detail-body ul li,
.article-detail-body ol li {
    margin-bottom: 10px;
    list-style: disc;
    line-height: 1.9;
}

.article-detail-body ol li {
    list-style: decimal;
}

.article-detail-body blockquote {
    margin: 28px 0;
    padding: 20px 28px;
    background: var(--bg-light);
    border-left: 4px solid var(--primary-light);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    color: var(--text-light);
    font-size: 1rem;
    font-style: italic;
}

.article-detail-body img {
    width: 100%;
    border-radius: var(--radius-md);
    margin: 28px 0;
}

.article-detail-footer {
    margin-top: 50px;
    padding-top: 30px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.article-share {
    display: flex;
    gap: 10px;
}

.article-nav {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid var(--border);
}

.article-nav a {
    flex: 1;
    padding: 20px 24px;
    background: var(--bg-light);
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.article-nav a:hover {
    background: var(--bg-gray);
}

.article-nav a .nav-label {
    font-size: 0.8rem;
    color: var(--text-lighter);
    margin-bottom: 6px;
}

.article-nav a .nav-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text);
}

.article-nav a.next {
    text-align: right;
}

/* ===== 案例详情页 ===== */
.case-header {
    text-align: center;
    margin-bottom: 50px;
}

.case-header .case-badge {
    display: inline-block;
    padding: 6px 18px;
    background: rgba(26, 79, 160, 0.08);
    color: var(--primary-light);
    border-radius: 30px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.case-header h1 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text);
}

.case-header p {
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 640px;
    margin: 0 auto;
}

.case-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 50px;
}

.case-stat-card {
    text-align: center;
    padding: 30px 20px;
    background: var(--white);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
}

.case-stat-card .stat-num {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.2;
    margin-bottom: 8px;
}

.case-stat-card .stat-num .unit {
    font-size: 1.2rem;
    color: var(--accent);
}

.case-stat-card .stat-desc {
    font-size: 0.9rem;
    color: var(--text-light);
}

.case-section {
    margin-bottom: 50px;
}

.case-section h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 20px;
    padding-left: 16px;
    border-left: 4px solid var(--primary-light);
    color: var(--text);
}

.case-section p {
    font-size: 1rem;
    line-height: 2;
    color: var(--text-light);
    margin-bottom: 16px;
}

.case-section ul {
    padding-left: 20px;
}

.case-section ul li {
    list-style: disc;
    margin-bottom: 12px;
    line-height: 1.9;
    color: var(--text-light);
}

.case-testimonial {
    background: var(--bg-light);
    border-radius: var(--radius-md);
    padding: 40px;
    margin-top: 40px;
}

.case-testimonial p {
    font-size: 1.15rem;
    line-height: 2;
    color: var(--text);
    font-style: italic;
    margin-bottom: 20px;
}

.case-testimonial .author {
    display: flex;
    align-items: center;
    gap: 14px;
}

.case-testimonial .author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--primary);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    font-weight: 600;
    flex-shrink: 0;
}

.case-testimonial .author-info h4 {
    font-size: 1rem;
    font-weight: 600;
}

.case-testimonial .author-info p {
    font-size: 0.9rem;
    color: var(--text-lighter);
    margin: 0;
}

/* ===== 优势条 ===== */
.advantage-bar {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 24px;
    background: var(--white);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
    transition: all var(--transition);
}

.advantage-bar:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--primary-lighter);
    transform: translateX(6px);
}

.advantage-bar .adv-icon {
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
}

.advantage-bar .adv-icon svg {
    width: 28px;
    height: 28px;
}

.advantage-bar .adv-content h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text);
}

.advantage-bar .adv-content p {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.6;
}

/* ===== 数字展示区 ===== */
.stats-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
}

.stats-bar .stat-item .stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--accent);
    line-height: 1.1;
    margin-bottom: 10px;
}

.stats-bar .stat-item .stat-number .unit {
    font-size: 1.3rem;
}

.stats-bar .stat-item .stat-label {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
}

.bg-primary .stats-bar .stat-item .stat-label,
.bg-gradient .stats-bar .stat-item .stat-label {
    color: rgba(255, 255, 255, 0.8);
}

/* ===== 页脚 ===== */
.site-footer {
    background: var(--primary-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 60px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 40px;
    margin-bottom: 50px;
}

.footer-brand .logo {
    color: var(--white);
    margin-bottom: 20px;
}

.footer-brand p {
    font-size: 0.9rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 20px;
}

.footer-brand .footer-contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 10px;
}

.footer-brand .footer-contact-item svg {
    width: 18px;
    height: 18px;
    color: var(--accent);
    flex-shrink: 0;
}

.footer-col h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 12px;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--accent);
}

.footer-col ul li {
    margin-bottom: 12px;
}

.footer-col ul li a {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.65);
    transition: all var(--transition);
}

.footer-col ul li a:hover {
    color: var(--accent);
    padding-left: 4px;
}

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

.footer-qr .qr-placeholder {
    width: 120px;
    height: 120px;
    margin: 0 auto 12px;
    border-radius: var(--radius-sm);
    background: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 0.8rem;
    font-weight: 600;
    overflow: hidden;
}

.footer-qr .qr-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.qr-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.footer-qr p {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
}

.footer-bottom {
    padding: 24px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
}

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

.footer-bottom a:hover {
    color: var(--accent);
}

/* ===== 滚动渐显动画（渐进增强） =====
   默认完全可见：JS 被禁用、main.js 加载失败或执行出错时，正文照常显示，
   不会出现「导航在、正文一片空白」的情况。
   只有 main.js 成功运行并给 <html> 加上 .js-ready 之后，
   才启用「先隐藏、进入视口再渐显」的效果。 */
.reveal {
    opacity: 1;
    transform: none;
}

html.js-ready .reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

html.js-ready .reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ===== 通用工具类 ===== */
.text-center { text-align: center; }
.mt-0 { margin-top: 0 !important; }
.mt-20 { margin-top: 20px; }
.mt-40 { margin-top: 40px; }
.mb-0 { margin-bottom: 0 !important; }
.mb-20 { margin-bottom: 20px; }
.mb-40 { margin-bottom: 40px; }
.hidden { display: none !important; }

/* ===== 移动端导航遮罩 ===== */
.nav-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    z-index: 999;
    opacity: 0;
    transition: opacity var(--transition);
}

.nav-overlay.show {
    display: block;
    opacity: 1;
}

/* ===== 浮动联系按钮 ===== */
.float-contact {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 900;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.float-btn {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: var(--primary);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition);
    cursor: pointer;
}

.float-btn:hover {
    background: var(--primary-light);
    transform: scale(1.1);
}

.float-btn svg {
    width: 24px;
    height: 24px;
}

/* ===== Logo 图片 ===== */
.logo-img {
    height: 44px;
    width: auto;
    flex-shrink: 0;
    border-radius: 6px;
}

.footer-brand .logo-img {
    height: 40px;
}

/* ===== Hero 两列布局（左文右图） ===== */
.hero-two-col {
    display: flex;
    align-items: center;
    gap: 60px;
    position: relative;
    z-index: 2;
}

.hero-two-col .hero-content {
    flex: 1;
    max-width: 640px;
}

.hero-two-col .hero-visual {
    flex: 1;
    max-width: 560px;
    flex-shrink: 0;
}

.hero-visual img {
    width: 120%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

/* ===== 公司简介板块 ===== */
.company-intro {
    display: flex;
    align-items: center;
    gap: 60px;
}

.company-intro-text {
    flex: 1;
}

.company-intro-text h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text);
}

.company-intro-text p {
    font-size: 1.05rem;
    color: var(--text-light);
    line-height: 1.9;
    margin-bottom: 16px;
}

.company-intro-text .intro-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 24px;
}

.company-intro-text .intro-tag {
    padding: 6px 16px;
    background: rgba(26, 79, 160, 0.08);
    color: var(--primary-light);
    border-radius: 20px;
    font-size: 0.88rem;
    font-weight: 600;
}

.company-intro-visual {
    flex: 1;
    max-width: 520px;
    flex-shrink: 0;
}

.company-intro-visual img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.company-intro-stats {
    display: flex;
    gap: 40px;
    margin-top: 28px;
}

.company-intro-stats .stat-item {
    text-align: left;
}

.company-intro-stats .stat-item .stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.2;
}

.company-intro-stats .stat-item .stat-label {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* ===== FAQ 2列布局 ===== */
.faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    max-width: 100%;
}

.faq-grid .faq-item {
    margin-bottom: 0;
}

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

.faq-more-link {
    text-align: center;
    margin-top: 36px;
}

.faq-more-link a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 32px;
    background: var(--primary);
    color: var(--white);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 600;
    transition: all var(--transition);
}

.faq-more-link a:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 30px; }
    .case-stats { grid-template-columns: repeat(2, 1fr); }
    .stats-bar { grid-template-columns: repeat(2, 1fr); gap: 30px; }
    .geo-feature { flex-direction: column !important; gap: 40px; }
    .geo-feature-visual { max-width: 100%; }
    .hero h1 { font-size: 2.4rem; }
    .cta-content { flex-direction: column; text-align: center; }
    .hero-two-col { flex-direction: column; gap: 40px; }
    .hero-two-col .hero-content { max-width: 100%; }
    .hero-two-col .hero-visual { max-width: 100%; }
    .company-intro { flex-direction: column; gap: 40px; }
    .company-intro-visual { max-width: 100%; }
    .faq-grid { grid-template-columns: 1fr; }
}

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

    .section { padding: 50px 0; }
    .section-header h2 { font-size: 1.7rem; }

    .nav-menu {
        position: fixed;
        top: var(--header-height);
        right: 0;
        width: 280px;
        height: calc(100vh - var(--header-height));
        background: var(--white);
        flex-direction: column;
        align-items: flex-start;
        padding: 24px;
        gap: 0;
        transform: translateX(100%);
        transition: transform var(--transition);
        box-shadow: var(--shadow-lg);
        overflow-y: auto;
    }

    .nav-menu.active {
        transform: translateX(0);
    }

    .nav-menu li {
        width: 100%;
        border-bottom: 1px solid var(--border-light);
    }

    .nav-menu li a {
        display: block;
        padding: 14px 0;
        width: 100%;
    }

    .nav-menu li a.active::after {
        display: none;
    }

    .nav-cta {
        margin-left: 0;
        margin-top: 16px;
        width: 100%;
    }

    .nav-cta .btn {
        width: 100%;
    }

    .nav-toggle { display: flex; }

    .hero { padding: 110px 0 50px; min-height: auto; }
    .hero h1 { font-size: 2rem; }
    .hero-subtitle { font-size: 1.05rem; }
    .hero-stats { gap: 24px; flex-wrap: wrap; }
    .hero-stat .stat-number { font-size: 1.6rem; }

    .page-banner { padding: 90px 0 40px; }
    .page-banner h1 { font-size: 1.8rem; }

    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }

    .process-steps {
        flex-direction: column;
        gap: 30px;
    }

    .process-steps::before { display: none; }

    .form-row { grid-template-columns: 1fr; }

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

    .footer-bottom { flex-direction: column; text-align: center; }

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

    .article-detail-header h1 { font-size: 1.5rem; }
    .article-detail-body { font-size: 1rem; }

    .case-header h1 { font-size: 1.6rem; }

    .cta-text h2 { font-size: 1.5rem; }

    .advantage-bar { flex-direction: column; text-align: center; gap: 12px; }

    .partner-logo { width: 130px; height: 60px; font-size: 0.8rem; }

    .compare-table { font-size: 0.85rem; }
    .compare-table th, .compare-table td { padding: 12px 14px; }

    .float-contact { right: 16px; bottom: 16px; }
    .float-btn { width: 44px; height: 44px; }
    .float-btn svg { width: 20px; height: 20px; }

    .card { padding: 24px; }

    .article-nav { flex-direction: column; }
}

@media (max-width: 480px) {
    .hero h1 { font-size: 1.7rem; }
    .hero-stats { gap: 20px; }
    .hero-stat .stat-number { font-size: 1.4rem; }
    .hero-stat .stat-label { font-size: 0.8rem; }

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

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

    .section-header h2 { font-size: 1.4rem; }

    .btn { padding: 12px 28px; font-size: 0.9rem; }
}