/* 
 * 服务器资产管理平台 - 科技透明风格
 * 风格：科技感 · 动态 · 玻璃拟态
 */

:root {
    --primary: #00d4ff;
    --primary-dark: #00a8cc;
    --secondary: #7c3aed;
    --accent: #f59e0b;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    
    --bg-dark: #0a0e27;
    --bg-darker: #050816;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    
    --text: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-dark);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ==================== 动态背景 ==================== */
.animated-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
}

.bg-gradient {
    position: absolute;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #0a0e27 0%, #1a1f3a 50%, #0a0e27 100%);
}

.grid-overlay {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: orbFloat 15s ease-in-out infinite;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, #00d4ff, transparent);
    top: -200px;
    left: -100px;
    animation-delay: 0s;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, #7c3aed, transparent);
    bottom: -150px;
    right: -100px;
    animation-delay: -5s;
}

.orb-3 {
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, #f59e0b, transparent);
    top: 50%;
    left: 50%;
    animation-delay: -10s;
}

@keyframes orbFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.1); }
    66% { transform: translate(-30px, 30px) scale(0.9); }
}

/* 粒子画布 */
#particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 32px;
    position: relative;
    z-index: 10;
}

/* ==================== 头部 ==================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(10, 14, 39, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-icon {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
    animation: logoGlow 3s ease-in-out infinite;
}

@keyframes logoGlow {
    0%, 100% { box-shadow: 0 0 20px rgba(0, 212, 255, 0.5); }
    50% { box-shadow: 0 0 30px rgba(0, 212, 255, 0.8); }
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), white);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ==================== 主区域 ==================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
}

.hero-content {
    max-width: 700px;
    text-align: center;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    font-size: 13px;
    margin-bottom: 32px;
    animation: fadeInUp 0.6s ease;
}

.hero-badge i {
    color: var(--primary);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero h1 {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 24px;
    animation: fadeInUp 0.6s ease 0.1s both;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary) 0%, white 50%, var(--primary) 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmer 3s linear infinite;
}

@keyframes shimmer {
    0% { background-position: 0% center; }
    100% { background-position: 200% center; }
}

.hero p {
    font-size: 18px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 48px;
    animation: fadeInUp 0.6s ease 0.2s both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 搜索框 */
.search-container {
    animation: fadeInUp 0.6s ease 0.3s both;
}

.search-box {
    display: flex;
    gap: 12px;
    padding: 8px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    max-width: 600px;
    margin: 0 auto;
    transition: all 0.3s ease;
}

.search-box:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.3);
}

.search-box input {
    flex: 1;
    border: none;
    padding: 18px 24px;
    font-size: 16px;
    background: transparent;
    color: var(--text);
    outline: none;
}

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

.btn {
    padding: 16px 32px;
    border: none;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    position: relative;
    overflow: hidden;
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    box-shadow: 0 4px 20px rgba(0, 212, 255, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(0, 212, 255, 0.6);
}

.btn-secondary {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    color: var(--text);
    border: 1px solid var(--glass-border);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--primary);
}

.btn-warning {
    background: linear-gradient(135deg, var(--warning), #d97706);
    color: white;
}

.btn-success {
    background: linear-gradient(135deg, var(--success), #059669);
    color: white;
}

.hero-tips {
    margin-top: 32px;
    font-size: 14px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    animation: fadeInUp 0.6s ease 0.4s both;
}

.hero-tips i {
    color: var(--primary);
}

/* ==================== 功能区 ==================== */
.features {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 16px;
}

.section-header p {
    font-size: 18px;
    color: var(--text-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.feature-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 40px 32px;
    text-align: center;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.1), transparent);
    transition: left 0.6s ease;
}

.feature-card:hover::before {
    left: 100%;
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary);
    box-shadow: 0 20px 40px rgba(0, 212, 255, 0.2);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 28px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    position: relative;
}

.feature-icon::after {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: 20px;
    padding: 2px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.3s;
}

.feature-card:hover .feature-icon::after {
    opacity: 1;
}

.feature-icon.cyan {
    background: rgba(0, 212, 255, 0.1);
    color: var(--primary);
}

.feature-icon.purple {
    background: rgba(124, 58, 237, 0.1);
    color: var(--secondary);
}

.feature-icon.orange {
    background: rgba(245, 158, 11, 0.1);
    color: var(--accent);
}

.feature-card h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 14px;
}

.feature-card p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ==================== 页脚 ==================== */
.footer {
    padding: 60px 0;
    text-align: center;
    border-top: 1px solid var(--glass-border);
}

.footer p {
    color: var(--text-muted);
    font-size: 14px;
}

/* ==================== 内容页 ==================== */
.content-section {
    padding: 0 0 60px;
    min-height: 100vh;
}

/* 卡片 */
.card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.card:hover {
    border-color: rgba(0, 212, 255, 0.3);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.1);
}

.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-title {
    font-size: 18px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}

.card-title i {
    color: var(--primary);
}

.card-subtitle {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 3px;
}

.card-body {
    padding: 24px;
}

/* 服务器信息 */
.server-info {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.info-item {
    padding: 24px;
    background: rgba(0, 212, 255, 0.05);
    border-radius: 16px;
    border-left: 4px solid var(--primary);
    transition: all 0.3s ease;
}

.info-item:hover {
    background: rgba(0, 212, 255, 0.1);
    transform: translateX(4px);
}

.info-label {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.info-value {
    font-size: 32px;
    font-weight: 700;
}

.info-value.success { color: var(--success); }
.info-value.warning { color: var(--warning); }
.info-value.danger { color: var(--danger); }

/* 配置网格 */
.config-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--glass-border);
}

.config-item {
    text-align: center;
    padding: 18px 12px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.config-item:hover {
    background: rgba(0, 212, 255, 0.1);
    transform: scale(1.05);
}

.config-icon {
    font-size: 24px;
    margin-bottom: 10px;
    color: var(--primary);
}

.config-label {
    font-size: 10px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 5px;
}

.config-value {
    font-size: 16px;
    font-weight: 600;
}

/* 续费区 */
.action-box {
    margin-top: 20px;
    padding: 20px 24px;
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.15), rgba(245, 158, 11, 0.05));
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-radius: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.action-box h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
}

.action-box p {
    color: var(--text-secondary);
    font-size: 13px;
}

/* 状态标签 */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 500;
}

.badge-success { background: rgba(16, 185, 129, 0.2); color: #34d399; }
.badge-warning { background: rgba(245, 158, 11, 0.2); color: #fbbf24; }
.badge-danger { background: rgba(239, 68, 68, 0.2); color: #f87171; }
.badge-info { background: rgba(0, 212, 255, 0.2); color: var(--primary); }

/* ==================== 弹窗 ==================== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--glass-bg);
    backdrop-filter: blur(30px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow: hidden;
    transform: scale(0.9) translateY(20px);
    transition: transform 0.3s ease;
}

.modal-overlay.active .modal {
    transform: scale(1) translateY(0);
}

.modal-header {
    padding: 28px 32px;
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-title {
    font-size: 20px;
    font-weight: 600;
}

.modal-close {
    width: 36px;
    height: 36px;
    border: none;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text);
    font-size: 24px;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: rotate(90deg);
}

.modal-body {
    padding: 32px;
    max-height: 60vh;
    overflow-y: auto;
}

.modal-footer {
    padding: 20px 32px;
    border-top: 1px solid var(--glass-border);
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

/* 周期选择 */
.period-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.period-item {
    padding: 20px 24px;
    background: rgba(255, 255, 255, 0.03);
    border: 2px solid var(--glass-border);
    border-radius: 14px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.period-item:hover {
    background: rgba(0, 212, 255, 0.05);
    border-color: rgba(0, 212, 255, 0.3);
}

.period-item.selected {
    background: rgba(0, 212, 255, 0.15);
    border-color: var(--primary);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
}

.period-name {
    font-size: 16px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
}

.period-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 50px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.period-badge.recommended {
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.3);
}

.period-badge.discount {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: white;
    box-shadow: 0 2px 8px rgba(245, 158, 11, 0.3);
}

.period-price {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
}

.period-price span {
    font-size: 14px;
    font-weight: 400;
    color: var(--text-secondary);
}

/* 支付弹窗 */
.payment-modal {
    background: var(--glass-bg);
    backdrop-filter: blur(30px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    width: 90%;
    max-width: 420px;
    position: relative;
    transform: scale(0.9) translateY(20px);
    transition: transform 0.3s ease;
}

.modal-overlay.active .payment-modal {
    transform: scale(1) translateY(0);
}

.payment-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 36px;
    height: 36px;
    border: none;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text);
    font-size: 24px;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 10;
}

.payment-close:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: rotate(90deg);
}

.payment-header {
    padding: 40px 32px 28px;
    text-align: center;
    border-bottom: 1px solid var(--glass-border);
    position: relative;
}

.payment-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary), var(--primary));
    background-size: 200% 100%;
    animation: gradientMove 3s linear infinite;
}

@keyframes gradientMove {
    0% { background-position: 0% center; }
    100% { background-position: 200% center; }
}

.payment-amount {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 8px;
    margin-bottom: 12px;
}

.amount-value {
    font-size: 48px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), white);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.amount-unit {
    font-size: 20px;
    color: var(--text-secondary);
    font-weight: 500;
}

.network-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(0, 212, 255, 0.15);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 50px;
    font-size: 13px;
    color: var(--primary);
    font-weight: 500;
}

.payment-body {
    padding: 32px;
}

.qr-box {
    width: 160px;
    height: 160px;
    margin: 0 auto 28px;
    padding: 6px;
    background: white;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.2);
}

.qr-box img {
    width: 100%;
    height: 100%;
    display: block;
}

.address-group {
    margin-bottom: 28px;
}

.address-label {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.address-input {
    display: flex;
    gap: 8px;
    padding: 4px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
}

.address-input input {
    flex: 1;
    padding: 12px 16px;
    background: transparent;
    border: none;
    color: var(--text);
    font-size: 13px;
    font-family: 'Courier New', monospace;
    outline: none;
}

.address-input button {
    padding: 12px 20px;
    background: rgba(0, 212, 255, 0.1);
    border: none;
    border-radius: 8px;
    color: var(--primary);
    cursor: pointer;
    transition: all 0.3s ease;
}

.address-input button:hover {
    background: rgba(0, 212, 255, 0.2);
}

.payment-notice {
    padding: 20px;
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.2);
    border-radius: 12px;
}

.payment-notice h5 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--warning);
}

.payment-notice ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.payment-notice li {
    font-size: 13px;
    color: var(--text-secondary);
    padding: 6px 0;
    padding-left: 20px;
    position: relative;
}

.payment-notice li::before {
    content: '•';
    position: absolute;
    left: 8px;
    color: var(--warning);
}

.payment-footer {
    padding: 20px 32px;
    border-top: 1px solid var(--glass-border);
    display: flex;
    gap: 12px;
}

.payment-footer .btn {
    flex: 1;
}

/* 表单 */
.form-group {
    margin-bottom: 24px;
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text);
}

.form-input {
    width: 100%;
    padding: 14px 18px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: var(--text);
    font-size: 15px;
    outline: none;
    transition: all 0.3s ease;
}

.form-input:focus {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--primary);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.2);
}

/* 下拉选择框选项样式 */
.form-input option {
    background: #1a1f3a;
    color: var(--text);
    padding: 10px;
}

.form-input select option:hover,
.form-input select option:checked {
    background: rgba(0, 212, 255, 0.2);
}

.form-hint {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 6px;
}

/* 页面头部 */
.page-header {
    padding: 100px 0 30px;
    text-align: center;
    position: relative;
    z-index: 10;
}

.page-header h1 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.page-header h1 i {
    color: var(--primary);
}

.page-header p {
    font-size: 14px;
    color: var(--text-secondary);
}

/* 服务器统计 */
.server-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 20px;
}

.stat-item {
    padding: 18px 20px;
    background: rgba(0, 212, 255, 0.05);
    border-radius: 12px;
    border-left: 3px solid var(--primary);
    transition: all 0.3s ease;
}

.stat-item:hover {
    background: rgba(0, 212, 255, 0.1);
    transform: translateX(4px);
}

.stat-label {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 6px;
}

.stat-value {
    font-size: 24px;
    font-weight: 700;
}

/* 响应式 */
@media (max-width: 768px) {
    .hero h1 { font-size: 36px; }
    .hero p { font-size: 16px; }
    .search-box { flex-direction: column; }
    .features-grid { grid-template-columns: 1fr; }
    .config-grid { grid-template-columns: repeat(2, 1fr); }
    .server-stats { grid-template-columns: 1fr; }
    .server-info { grid-template-columns: 1fr; }
    .payment-modal { max-width: 95%; }
    .modal { max-width: 95%; }
    
    /* 续费区域手机端保持横向 */
    .action-box {
        flex-direction: row;
        gap: 12px;
    }
    
    .action-box > div {
        flex: 1;
        min-width: 0;
    }
    
    .action-box h4 {
        font-size: 15px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    
    .action-box p {
        font-size: 12px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    
    .action-box .btn {
        padding: 14px 20px;
        font-size: 14px;
        white-space: nowrap;
        flex-shrink: 0;
    }
    
    /* 支付弹窗移动端优化 */
    .payment-modal {
        max-height: 95vh;
        overflow-y: auto;
    }
    
    .payment-header {
        padding: 28px 20px 20px;
    }
    
    .amount-value {
        font-size: 36px;
    }
    
    .amount-unit {
        font-size: 16px;
    }
    
    .network-tag {
        font-size: 12px;
        padding: 5px 14px;
    }
    
    .payment-body {
        padding: 20px;
    }
    
    .qr-box {
        width: 140px;
        height: 140px;
        margin: 0 auto 20px;
        padding: 6px;
    }
    
    .address-group {
        margin-bottom: 20px;
    }
    
    .address-label {
        font-size: 12px;
        margin-bottom: 6px;
    }
    
    .address-input input {
        padding: 10px 12px;
        font-size: 12px;
    }
    
    .address-input button {
        padding: 10px 16px;
    }
    
    .payment-notice {
        padding: 16px;
    }
    
    .payment-notice h5 {
        font-size: 13px;
        margin-bottom: 10px;
    }
    
    .payment-notice li {
        font-size: 12px;
        padding: 4px 0;
    }
    
    .payment-footer {
        padding: 16px 20px;
        gap: 10px;
    }
    
    .payment-footer .btn {
        padding: 12px 16px;
        font-size: 14px;
    }
    
    .payment-close {
        width: 32px;
        height: 32px;
        font-size: 20px;
        top: 16px;
        right: 16px;
    }
}