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

:root {
    --primary-color: #1a73e8;
    --secondary-color: #00897b;
    --accent-color: #ff6b35;
    --dark-bg: #0f1419;
    --light-bg: #f8fafc;
    --glass-bg: rgba(255, 255, 255, 0.15);
    --glass-border: rgba(255, 255, 255, 0.25);
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.2);
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--light-bg);
    overflow-x: hidden;
    writing-mode: horizontal-tb;
    direction: ltr;
}

/* 导航栏 - 液态玻璃效果 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 5%;
    background: linear-gradient(135deg, 
        rgba(26, 115, 232, 0.12) 0%, 
        rgba(0, 137, 123, 0.08) 50%,
        rgba(255, 107, 53, 0.06) 100%);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--glass-border);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.navbar.scrolled {
    padding: 0.6rem 5%;
    background: linear-gradient(135deg, 
        rgba(255, 255, 255, 0.85) 0%, 
        rgba(248, 250, 252, 0.9) 100%);
    backdrop-filter: blur(30px) saturate(200%);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: -0.5px;
    position: relative;
}

.logo::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color), var(--accent-color));
    border-radius: 2px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 0.3rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-primary);
    text-decoration: none;
    padding: 0.7rem 1.2rem;
    border-radius: var(--border-radius-sm);
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.nav-links a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.nav-links a:hover {
    background: var(--glass-bg);
    color: var(--primary-color);
}

.nav-links a:hover::before {
    width: 60%;
}

.nav-links .btn-login {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white !important;
    padding: 0.7rem 1.8rem;
    border-radius: var(--border-radius-sm);
}

.nav-links .btn-login:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
    background: none;
    border: none;
}

.mobile-menu-btn span {
    display: block;
    width: 28px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* Hero区域 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background: url('../img/beijing.jpg') center center / cover no-repeat fixed;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(15, 20, 25, 0.75) 0%,
        rgba(26, 115, 232, 0.35) 50%,
        rgba(0, 137, 123, 0.45) 100%
    );
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 5%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-text h1 {
    font-size: 3.8rem;
    font-weight: 800;
    color: white;
    line-height: 1.15;
    letter-spacing: -2px;
    margin-bottom: 1.5rem;
    animation: slideUp 0.8s ease-out;
}

.hero-text h1 span {
    background: linear-gradient(135deg, #60a5fa, #34d399, #fbbf24);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-text p {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2.5rem;
    max-width: 520px;
    line-height: 1.8;
    animation: slideUp 0.8s ease-out 0.2s both;
}

.hero-buttons {
    display: flex;
    gap: 1.2rem;
    animation: slideUp 0.8s ease-out 0.4s both;
}

.btn {
    padding: 1rem 2.5rem;
    border-radius: var(--border-radius-sm);
    font-size: 1.05rem;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), #2563eb);
    color: white;
    box-shadow: 0 4px 20px rgba(26, 115, 232, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(26, 115, 232, 0.55);
}

.btn-outline {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: white;
    transform: translateY(-3px);
}

.hero-visual {
    position: relative;
    animation: fadeInRight 1s ease-out 0.3s both;
}

.hero-card {
    background: linear-gradient(
        145deg,
        rgba(255, 255, 255, 0.18),
        rgba(255, 255, 255, 0.05)
    );
    backdrop-filter: blur(25px);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: var(--border-radius-lg);
    padding: 3rem;
    position: relative;
    overflow: hidden;
}

.hero-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(96, 165, 250, 0.2) 0%, transparent 70%);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    position: relative;
    z-index: 1;
}

.stat-item {
    text-align: center;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-md);
    transition: all 0.3s ease;
}

.stat-item:hover {
    background: rgba(255, 255, 255, 0.18);
    transform: translateY(-5px);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: white;
    display: block;
}

.stat-label {
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.95rem;
    margin-top: 0.3rem;
}

/* 内容区块 */
.section {
    padding: 7rem 5%;
    position: relative;
}

.section-title {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title h2 {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -1px;
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

.section-title p {
    color: var(--text-secondary);
    font-size: 1.15rem;
    max-width: 650px;
    margin: 1.5rem auto 0;
}

.container {
    max-width: 1300px;
    margin: 0 auto;
}

/* 服务卡片 */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.service-card {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: 2.5rem;
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

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

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.service-icon {
    width: 70px;
    height: 70px;
    border-radius: var(--border-radius-md);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 1.8rem;
    color: white;
}

.service-card h3 {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 0.8rem;
    color: var(--text-primary);
}

.service-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 特色区域 */
.features-section {
    background: linear-gradient(180deg, var(--dark-bg) 0%, #1a2332 100%);
    color: white;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: linear-gradient(
        145deg,
        rgba(255, 255, 255, 0.1),
        rgba(255, 255, 255, 0.03)
    );
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-md);
    padding: 2.5rem;
    transition: all 0.4s ease;
    backdrop-filter: blur(10px);
}

.feature-card:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-5px);
}

.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--primary-color), #60a5fa);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.2rem;
    font-size: 1.5rem;
}

.feature-card h4 {
    font-size: 1.2rem;
    margin-bottom: 0.7rem;
    font-weight: 600;
}

.feature-card p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
    line-height: 1.65;
}

/* 页脚 - 液态玻璃效果 */
.footer {
    background: linear-gradient(
        180deg,
        var(--dark-bg) 0%,
        #0d1117 100%
    );
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 250px;
    background: url('../img/beijing.jpg') center center / cover no-repeat;
    opacity: 0.08;
    filter: grayscale(50%) blur(3px);
}

.footer-glass {
    background: linear-gradient(
        135deg,
        rgba(26, 115, 232, 0.07),
        rgba(0, 137, 123, 0.05),
        rgba(255, 107, 53, 0.04)
    );
    backdrop-filter: blur(40px) saturate(150%);
    -webkit-backdrop-filter: blur(40px) saturate(150%);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 5rem 5% 3rem;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 3rem;
    position: relative;
    z-index: 1;
}

.footer-brand h3 {
    color: white;
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.footer-contact {
    list-style: none;
}

.footer-contact li {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.footer-column h4 {
    color: white;
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 0.8rem;
}

.footer-column h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.7rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.footer-links a:hover {
    color: #60a5fa;
    transform: translateX(5px);
}

/* 底部版权栏 */
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 1.5rem 5%;
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
    line-height: 1.9;
}

.footer-bottom a {
    color: #60a5fa;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-bottom a:hover {
    color: #93c5fd;
    text-decoration: underline;
}

/* 表单样式 */
.form-group {
    margin-bottom: 1.5rem;
    writing-mode: horizontal-tb;
    direction: ltr;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.form-control {
    width: 100%;
    padding: 0.9rem 1.2rem;
    border: 2px solid #e2e8f0;
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    transition: all 0.3s ease;
    font-family: inherit;
    background: white;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(26, 115, 232, 0.1);
}

/* 卡片容器 */
.card {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0, 0, 0, 0.04);
    writing-mode: horizontal-tb;
}

/* 登录注册页面 */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    background: linear-gradient(135deg, var(--dark-bg) 0%, #1a2332 50%, var(--dark-bg) 100%);
    padding: 2rem;
    position: relative;
}

.auth-page::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('../img/beijing.jpg') center center / cover no-repeat;
    opacity: 0.08;
}

.auth-container {
    width: 100%;
    max-width: 480px;
    position: relative;
    z-index: 1;
}

.auth-card {
    background: linear-gradient(
        145deg,
        rgba(255, 255, 255, 0.98),
        rgba(248, 250, 252, 0.95)
    );
    backdrop-filter: blur(30px);
    border-radius: var(--border-radius-lg);
    padding: 3rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.5);
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-header h2 {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.auth-header p {
    color: var(--text-secondary);
}

/* 一网通办页面 */
.ywtb-layout {
    display: flex;
    min-height: 100vh;
    width: 100%;
}

.ywtb-sidebar {
    background: var(--dark-bg);
    padding: 2rem 1.5rem;
    position: fixed;
    left: 0;
    top: 0;
    width: 260px;
    height: 100vh;
    overflow-y: auto;
    border-right: 1px solid rgba(255, 255, 255, 0.08);
    z-index: 50;
}

.sidebar-logo {
    color: white;
    font-size: 1.4rem;
    font-weight: 700;
    padding: 1rem 0;
    margin-bottom: 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-nav {
    list-style: none;
    writing-mode: horizontal-tb;
}

.sidebar-nav li {
    margin-bottom: 0.4rem;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.9rem 1.2rem;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    border-radius: var(--border-radius-sm);
    transition: all 0.3s ease;
    font-size: 0.95rem;
    white-space: nowrap;
    overflow: hidden;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    background: rgba(26, 115, 232, 0.2);
    color: white;
}

.ywtb-main {
    margin-left: 260px;
    padding: 2rem;
    background: #f1f5f9;
    min-height: 100vh;
    width: calc(100% - 260px);
    box-sizing: border-box;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.page-header {
    margin-bottom: 2rem;
}

.page-header h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.page-header p {
    color: var(--text-secondary);
    margin-top: 0.4rem;
}

/* 进度条 */
.progress-bar {
    height: 8px;
    background: #e2e8f0;
    border-radius: 4px;
    overflow: hidden;
    margin: 1rem 0;
}

.progress-bar .progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 4px;
    transition: width 0.5s ease;
}

/* 状态标签 */
.status-badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.status-submitted { background: #dbeafe; color: #1d4ed8; }
.status-reviewing { background: #fef3c7; color: #d97706; }
.status-approved { background: #dcfce7; color: #15803d; }
.status-rejected { background: #fee2e2; color: #dc2626; }
.status-pending { background: #f3e8ff; color: #7c3aed; }

/* 表格 */
.data-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.data-table thead {
    background: var(--dark-bg);
    color: white;
}

.data-table th,
.data-table td {
    padding: 1rem 1.2rem;
    text-align: left;
}

.data-table th {
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.data-table tbody tr {
    border-bottom: 1px solid #f1f5f9;
    transition: background 0.2s ease;
}

.data-table tbody tr:hover {
    background: #f8fafc;
}

/* 后台布局 */
.admin-layout {
    display: flex;
    min-height: 100vh;
    width: 100%;
}

.admin-sidebar {
    background: linear-gradient(180deg, var(--dark-bg) 0%, #161b22 100%);
    padding: 1.5rem;
    position: fixed;
    left: 0;
    top: 0;
    width: 270px;
    height: 100vh;
    overflow-y: auto;
    border-right: 1px solid rgba(255, 255, 255, 0.08);
}

.admin-logo {
    color: white;
    font-size: 1.3rem;
    font-weight: 700;
    padding: 1rem 0.8rem;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.admin-nav {
    list-style: none;
    writing-mode: horizontal-tb;
}

.admin-nav > li {
    margin-bottom: 0.3rem;
}

.admin-nav a {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.85rem 1rem;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    border-radius: var(--border-radius-sm);
    transition: all 0.3s ease;
    font-size: 0.92rem;
    white-space: nowrap;
}

.admin-nav a:hover,
.admin-nav a.active {
    background: rgba(26, 115, 232, 0.18);
    color: white;
    padding-left: 1.3rem;
}

.admin-main {
    margin-left: 270px;
    background: #f8fafc;
    min-height: 100vh;
    width: calc(100% - 270px);
    box-sizing: border-box;
}

.admin-topbar {
    background: white;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #e2e8f0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.admin-content {
    padding: 2rem;
}

/* 动画 */
@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-text p {
        margin: 0 auto 2.5rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .footer-main {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .ywtb-layout {
        flex-direction: column;
    }

    .admin-layout {
        display: flex;
        flex-direction: column;
    }
    
    .ywtb-sidebar,
    .admin-sidebar {
        position: relative;
        width: 100%;
        height: auto;
        overflow-y: visible;
    }
    
    .ywtb-main,
    .admin-main {
        margin-left: 0;
        width: 100%;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 1rem;
        box-shadow: var(--shadow-md);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero-text h1 {
        font-size: 2.5rem;
    }
    
    .footer-main {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
}