* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
:root {
    --primary-dark: #4A3A6B;
    --primary-dark-purple: #4A3A6B;
    --primary-mid: #6C5F7B;
    --primary-mid-purple: #6C5F7B;
    --primary-light: #E0D9F0;
    --primary-light-purple: #E0D9F0;
    --accent-gold: #D4AF37;
    --accent-teal: #14B8A6;
    --accent-purple: #8B5CF6;
    --white: #FFFFFF;
    --bg-white: #FFFFFF;
    --bg-light: #F8F8F8;
    --bg-warm: #FAF7F2;
    --bg-gray: #F1F5F9;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D0D0D0;
    --text-title: #2E2E2E;
    --text-body: #4F4F4F;
    --text-muted: #8A8A8A;
    --text-dark: #2D3748;
    --border-light: #E2E8F0;
    --border-medium: #CBD5E1;
    --border-gray: #E8E8E8;
    --radius: 8px;
    --radius-btn: 50px;
    --radius-card: 16px;
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --container-px: 120px;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --font-heading: 'Poppins', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: #F8F9FC;
    color: #1F2937;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}
.site-header {
    background-color: var(--primary-dark);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}
.top-bar {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 32px;
    height: 48px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.logo-area {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}
.logo-icon {
    width: 32px;
    height: 32px;
    background: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}
.logo-icon::after {
    content: '';
    width: 12px;
    height: 12px;
    background: var(--primary-dark);
    border-radius: 50%;
}
.logo-text {
    font-size: 1rem;
    font-weight: 600;
    color: var(--white);
    letter-spacing: 0.5px;
}
.logo-text span {
    color: var(--accent-gold);
}
.top-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}
.lang-dropdown {
    position: relative;
}
.lang-btn {
    color: var(--white);
    font-size: 0.85rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 4px;
    background: none;
    border: none;
}
.lang-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--white);
    border-radius: 8px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
    min-width: 100px;
    padding: 8px 0;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 1002;
}
.lang-dropdown:hover .lang-menu {
    opacity: 1;
    visibility: visible;
}
.lang-menu a {
    display: block;
    padding: 8px 16px;
    text-decoration: none;
    color: var(--text-dark);
    font-size: 0.85rem;
    cursor: pointer;
}
.lang-menu a:hover {
    background: var(--primary-light);
    color: var(--primary-dark);
}
.top-link {
    color: var(--white);
    text-decoration: none;
    font-size: 0.85rem;
    transition: var(--transition);
}
.top-link:hover {
    color: var(--accent-gold);
}
.user-dropdown {
    position: relative;
    display: inline-flex;
}
.user-btn {
    background-color: var(--accent-gold);
    color: var(--primary-dark);
    padding: 4px 14px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 0.85rem;
    transition: 0.2s;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
}
.user-btn:hover {
    background-color: #f0c94d;
    transform: translateY(-1px);
}
.user-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--white);
    border-radius: 8px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
    min-width: 140px;
    padding: 8px 0;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 1002;
}
.user-dropdown:hover .user-menu {
    opacity: 1;
    visibility: visible;
}
.user-menu a {
    display: block;
    padding: 10px 16px;
    text-decoration: none;
    color: var(--text-dark);
    font-size: 0.85rem;
}
.user-menu a:hover {
    background: var(--primary-light);
    color: var(--primary-dark);
}
.main-nav {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 32px;
    height: 48px;
    display: flex;
    justify-content: center;
    align-items: center;
}
.nav-list {
    display: flex;
    gap: 32px;
    list-style: none;
}
.nav-item {
    position: relative;
}
.nav-item > a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    padding: 12px 0;
    display: inline-block;
    transition: var(--transition);
}
.nav-item > a:hover {
    color: var(--accent-gold);
}
.dropdown-menu {
    position: absolute;
    top: 48px;
    left: 0;
    background: var(--white);
    min-width: 220px;
    border-radius: 12px;
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12);
    opacity: 0;
    visibility: hidden;
    transition: all 0.25s ease;
    transform: translateY(10px);
    z-index: 1001;
    padding: 8px 0;
    border-top: 3px solid var(--accent-gold);
}
.nav-item:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.dropdown-menu li {
    list-style: none;
    position: relative;
}
.dropdown-menu a {
    display: block;
    padding: 10px 20px;
    color: var(--text-dark);
    text-decoration: none;
    font-size: 0.85rem;
    transition: background 0.2s;
}
.dropdown-menu a:hover {
    background: var(--primary-light);
    color: var(--primary-dark);
}
.submenu {
    position: absolute;
    top: 0;
    left: 100%;
    background: var(--white);
    min-width: 200px;
    border-radius: 12px;
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12);
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    transform: translateX(8px);
    padding: 8px 0;
    border-top: 3px solid var(--accent-gold);
}
.dropdown-menu li:hover > .submenu {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}
.has-submenu > a::after {
    content: "›";
    float: right;
    margin-left: 12px;
    font-size: 1.1rem;
}
.mobile-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    width: 30px;
    height: 30px;
    position: relative;
    z-index: 1010;
}
.mobile-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--white);
    margin: 5px 0;
    transition: 0.3s;
}
.mobile-sidebar {
    position: fixed;
    top: 0;
    left: -100%;
    width: 85%;
    max-width: 320px;
    height: 100%;
    background-color: var(--primary-dark);
    z-index: 2000;
    transition: left 0.3s ease;
    overflow-y: auto;
    padding: 20px;
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.3);
}
.mobile-sidebar.open {
    left: 0;
}
.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}
.close-sidebar {
    background: none;
    border: none;
    color: white;
    font-size: 28px;
    cursor: pointer;
}
.mobile-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 24px;
}
.mobile-actions a {
    color: white;
    text-decoration: none;
    background: rgba(255,255,255,0.1);
    padding: 8px 12px;
    border-radius: 8px;
    text-align: center;
}
.mobile-user {
    background: var(--accent-gold);
    color: var(--primary-dark) !important;
    font-weight: bold;
}
.mobile-lang {
    display: flex;
    justify-content: space-around;
    gap: 10px;
}
.mobile-lang a {
    flex: 1;
    text-align: center;
    color: white;
    text-decoration: none;
    background: rgba(255,255,255,0.2);
    border-radius: 8px;
    padding: 6px;
}
.mobile-nav-list {
    list-style: none;
}
.mobile-nav-item {
    border-bottom: 1px solid rgba(255,255,255,0.1);
}
.mobile-nav-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 0;
    color: white;
    text-decoration: none;
    font-size: 1rem;
    cursor: pointer;
}
.mobile-submenu {
    padding-left: 16px;
    display: none;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 12px;
}
.mobile-submenu.open {
    display: flex;
}
.mobile-submenu a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    font-size: 0.85rem;
    padding: 6px 0;
}
.chevron {
    transition: transform 0.3s;
}
.chevron.rotated {
    transform: rotate(180deg);
}
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1999;
    display: none;
}
.overlay.active {
    display: block;
}
@media (max-width: 1024px) {
    .main-nav {
        display: none;
    }
    .mobile-toggle {
        display: block;
    }
    .top-actions .top-link:not(.user-btn) {
        display: none;
    }
    .top-actions .user-dropdown {
        display: none;
    }
    .lang-dropdown {
        display: none;
    }
}
.site-footer {
    background-color: var(--primary-dark);
    color: rgba(255, 255, 255, 0.8);
    padding: 48px 0 24px;
    margin-top: auto;
    font-size: 0.85rem;
}
.footer-container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 32px;
}
.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}
.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}
.footer-logo-text {
    font-weight: 600;
    color: var(--white);
    font-size: 1rem;
}
.footer-logo-text span {
    color: var(--accent-gold);
}
.footer-desc {
    line-height: 1.6;
    opacity: 0.8;
    margin-top: 8px;
}
.footer-cert {
    display: flex;
    gap: 12px;
    margin-top: 16px;
}
.cert-badge {
    background: rgba(255, 255, 255, 0.15);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--accent-gold);
}
.footer-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--accent-gold);
    position: relative;
    display: inline-block;
}
.footer-links, .footer-contact {
    list-style: none;
    padding: 0;
}
.footer-links li, .footer-contact li {
    margin-bottom: 12px;
}
.footer-links a, .footer-contact a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.2s;
}
.footer-links a:hover, .footer-contact a:hover {
    color: var(--accent-gold);
}
.footer-contact i {
    width: 24px;
    color: var(--accent-gold);
    margin-right: 8px;
}
.footer-social {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
}
.footer-social a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: var(--white);
    text-decoration: none;
    transition: all 0.2s;
}
.footer-social a:hover {
    background: var(--accent-gold);
    color: var(--primary-dark);
    transform: translateY(-2px);
}
.wechat-qrcode {
    display: none;
    position: absolute;
    top: 50%;
    left: calc(50% + 12px);
    transform: translateY(-50%);
    background: var(--white);
    padding: 8px;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    z-index: 9999;
}
.wechat-qrcode img {
    width: 120px;
    height: 120px;
    transition: transform 0.3s ease;
}
.wechat-trigger:hover + .wechat-qrcode,
.wechat-qrcode:hover {
    display: block;
}
.wechat-qrcode:hover img {
    transform: scale(1.3);
}
.footer-social {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
    position: relative;
}
.footer-legal {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}
.footer-legal a {
    color: rgba(255, 255, 255, 0.5);
    text-decoration: none;
    font-size: 0.75rem;
}
.footer-legal a:hover {
    color: var(--accent-gold);
}
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    padding-top: 24px;
    text-align: center;
    font-size: 0.75rem;
    opacity: 0.6;
}
@media (max-width: 900px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }
}
@media (max-width: 600px) {
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .footer-logo {
        justify-content: center;
    }
    .footer-cert {
        justify-content: center;
    }
    .footer-social {
        justify-content: center;
    }
    .footer-legal {
        justify-content: center;
    }
}

/* ========== 响应式变量 ========== */
@media (max-width: 1200px) {
    :root {
        --container-px: 40px;
    }
}

/* ========== 按钮 ========== */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 9999px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-size: 0.9rem;
}

.btn-primary {
    background: var(--accent-gold);
    color: white;
    box-shadow: 0 4px 20px rgba(212, 175, 55, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    opacity: 0.9;
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    transform: translateY(-2px);
    opacity: 0.9;
}

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

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

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

/* ========== 卡片 ========== */
.card {
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    padding: 1.5rem;
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-gold);
}

/* ========== 表单 ========== */
.input-field {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    font-size: 0.9rem;
    transition: var(--transition);
    background: var(--bg-white);
}

.input-field:focus {
    outline: none;
    border-color: var(--accent-gold);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

.input-field::placeholder {
    color: var(--text-muted);
}

label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 0.25rem;
    color: var(--text-title);
}

.form-group {
    margin-bottom: 1rem;
}

/* 选择框 */
select.input-field {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3E%3Cpath stroke='%236B7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1.25rem;
}

/* 文本域 */
textarea.input-field {
    resize: vertical;
    min-height: 100px;
}

/* 复选框和单选框 */
.checkbox-label, .radio-label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-weight: normal;
}

/* ========== 表格 ========== */
.table-wrapper {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th {
    text-align: left;
    padding: 0.75rem 1rem;
    background: var(--bg-gray);
    font-weight: 600;
    color: var(--text-title);
    border-bottom: 1px solid var(--border-light);
}

.table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-light);
}

.table tr:hover {
    background: var(--bg-gray);
}

/* ========== 徽章 ========== */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-pending {
    background: #FEF3C7;
    color: #D97706;
}

.badge-approved {
    background: #D1FAE5;
    color: #059669;
}

.badge-rejected {
    background: #FEE2E2;
    color: #DC2626;
}

.badge-gold {
    background: var(--accent-gold);
    color: var(--primary-dark);
}

/* ========== 分割线 ========== */
.divider {
    border-top: 1px solid var(--border-light);
    margin: 1rem 0;
}

/* ========== 工具类 ========== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mx-auto { margin-left: auto; margin-right: auto; }
.w-full { width: 100%; }
.hidden { display: none; }

@media (max-width: 768px) {
    .btn {
        padding: 0.5rem 1rem;
        font-size: 0.8rem;
    }
    .card {
        padding: 1rem;
    }
}