/* ===== 全局样式 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-gold: #e2b04a;
    --primary-gold-light: #f0c95c;
    --primary-gold-dark: #c99a3a;
    --primary-gold-gradient: linear-gradient(135deg, #e2b04a 0%, #f0c95c 100%);
    
    --bg-dark: #0a0a1a;
    --bg-darker: #060612;
    --bg-secondary: #1a1a2e;
    --bg-tertiary: #16213e;
    --bg-card: rgba(255, 255, 255, 0.03);
    --bg-card-hover: rgba(255, 255, 255, 0.06);
    --bg-input: rgba(128, 128, 128, 0.06);
    
    --text-primary: #ffffff;
    --text-secondary: #a0aec0;
    --text-tertiary: #718096;
    --text-muted: #4a5568;
    
    --border-color: rgba(128, 128, 128, 0.1);
    --border-gold: rgba(226, 176, 74, 0.3);
    
    --max-width: 1200px;
    --nav-height: 64px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

ul {
    list-style: none;
}

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

.section-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.section-tag {
    font-size: 14px;
    color: var(--primary-gold);
    text-align: center;
    margin-bottom: 12px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.section-title {
    font-size: 48px;
    font-weight: 600;
    text-align: center;
    margin-bottom: 60px;
    letter-spacing: -0.5px;
    color: var(--text-primary);
    background: linear-gradient(180deg, #fff 0%, #a0aec0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle-center {
    font-size: 18px;
    color: var(--text-secondary);
    text-align: center;
    margin-top: -40px;
    margin-bottom: 60px;
}

/* ===== 导航栏 ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    background: rgba(10, 10, 26, 0.8);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    z-index: 1000;
    border-bottom: 1px solid rgba(226, 176, 74, 0.1);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-logo .logo-icon {
    width: 36px;
    height: 36px;
    background: var(--primary-gold-gradient);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
    color: var(--bg-dark);
}

.nav-logo .logo-text {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 1px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-size: 14px;
    color: var(--text-secondary);
    position: relative;
    padding: 4px 0;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--primary-gold);
}

.nav-link.active {
    color: var(--primary-gold);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary-gold-gradient);
    border-radius: 1px;
}

.nav-shop {
    color: var(--primary-gold) !important;
    font-weight: 500;
    padding: 8px 20px !important;
    border: 1px solid var(--border-gold);
    border-radius: 20px;
    transition: all 0.3s ease;
}

.nav-shop:hover {
    background: rgba(226, 176, 74, 0.1);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: 0.3s;
}

/* ===== Hero 首屏 ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: var(--nav-height);
    padding-bottom: 80px;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-bg-gradient {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(ellipse at 30% 20%, rgba(226, 176, 74, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 80%, rgba(66, 153, 225, 0.08) 0%, transparent 50%),
        linear-gradient(180deg, var(--bg-darker) 0%, var(--bg-dark) 50%, var(--bg-secondary) 100%);
}

.hero-bg-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(226, 176, 74, 0.1) 0%, transparent 2px),
        radial-gradient(circle at 60% 70%, rgba(226, 176, 74, 0.08) 0%, transparent 1px),
        radial-gradient(circle at 80% 20%, rgba(66, 153, 225, 0.08) 0%, transparent 1px),
        radial-gradient(circle at 40% 80%, rgba(226, 176, 74, 0.06) 0%, transparent 1px);
    background-size: 300px 300px, 250px 250px, 200px 200px, 350px 350px;
    animation: floatParticles 20s ease-in-out infinite;
}

@keyframes floatParticles {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(20px, -20px); }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    animation: fadeInUp 1s ease-out;
    width: 100%;
    max-width: 1000px;
}

.hero-tag {
    font-size: 16px;
    color: var(--primary-gold);
    letter-spacing: 4px;
    margin-bottom: 20px;
    opacity: 0.9;
}

.hero-number {
    margin-bottom: 20px;
}

.num-7 {
    font-size: 160px;
    font-weight: 700;
    background: var(--primary-gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    filter: drop-shadow(0 0 60px rgba(226, 176, 74, 0.3));
    animation: numGlow 3s ease-in-out infinite;
}

@keyframes numGlow {
    0%, 100% { filter: drop-shadow(0 0 40px rgba(226, 176, 74, 0.3)); }
    50% { filter: drop-shadow(0 0 80px rgba(226, 176, 74, 0.5)); }
}

.hero-text {
    margin-bottom: 50px;
}

.hero-title {
    font-size: 42px;
    font-weight: 600;
    margin-bottom: 12px;
    letter-spacing: 4px;
    color: var(--text-primary);
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    letter-spacing: 4px;
}

.hero-demo {
    margin-top: 40px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.demo-window {
    display: flex;
    background: rgba(26, 26, 46, 0.8);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(226, 176, 74, 0.2);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(226, 176, 74, 0.1);
    text-align: left;
    height: 420px;
    animation: demoFloat 6s ease-in-out infinite;
}

@keyframes demoFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.demo-sidebar {
    width: 200px;
    background: rgba(15, 15, 35, 0.8);
    border-right: 1px solid var(--border-color);
    padding: 20px 12px;
    display: flex;
    flex-direction: column;
}

.demo-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0 8px 20px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 16px;
}

.demo-logo-icon {
    width: 28px;
    height: 28px;
    background: var(--primary-gold-gradient);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 700;
    color: var(--bg-dark);
}

.demo-logo-text {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.demo-nav {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.demo-nav-item {
    padding: 10px 12px;
    font-size: 13px;
    color: var(--text-secondary);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.demo-nav-item:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
}

.demo-nav-item.active {
    background: rgba(226, 176, 74, 0.15);
    color: var(--primary-gold);
}

.demo-user {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 10px;
    margin-top: auto;
}

.demo-avatar {
    width: 36px;
    height: 36px;
    background: var(--primary-gold-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 600;
    color: var(--bg-dark);
    flex-shrink: 0;
}

.demo-user-info {
    min-width: 0;
}

.demo-username {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.demo-user-role {
    font-size: 11px;
    color: var(--primary-gold);
}

.demo-main {
    flex: 1;
    padding: 24px;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.demo-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.demo-header h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
}

.demo-actions {
    display: flex;
    gap: 8px;
}

.demo-btn {
    padding: 6px 14px;
    font-size: 12px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    white-space: nowrap;
}

.demo-btn.primary {
    background: var(--primary-gold);
    border-color: var(--primary-gold);
    color: var(--bg-dark);
    font-weight: 500;
}

.demo-filters {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.demo-filter {
    padding: 6px 16px;
    font-size: 12px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    color: var(--text-tertiary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.demo-filter.active {
    background: rgba(226, 176, 74, 0.15);
    border-color: var(--primary-gold);
    color: var(--primary-gold);
}

.demo-table {
    flex: 1;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    overflow: hidden;
}

.demo-table-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    padding: 12px 16px;
    font-size: 13px;
    border-bottom: 1px solid var(--border-color);
    align-items: center;
}

.demo-table-row:last-child {
    border-bottom: none;
}

.demo-table-row.header {
    background: rgba(255, 255, 255, 0.02);
    font-size: 12px;
    color: var(--text-tertiary);
    font-weight: 500;
}

.demo-table-row.header span {
    font-weight: 500;
}

.demo-table-row strong {
    color: var(--text-primary);
    font-weight: 500;
}

.tag {
    display: inline-block;
    padding: 2px 10px;
    font-size: 11px;
    border-radius: 10px;
}

.tag.gold {
    background: rgba(226, 176, 74, 0.15);
    color: var(--primary-gold);
}

.tag.blue {
    background: rgba(66, 153, 225, 0.15);
    color: #4299e1;
}

.tag.green {
    background: rgba(72, 187, 120, 0.15);
    color: #48bb78;
}

.status-dot {
    display: inline-block;
    width: 6px;
    height: 6px;
    background: #48bb78;
    border-radius: 50%;
    margin-right: 6px;
    vertical-align: middle;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    color: rgba(255, 255, 255, 0.4);
    font-size: 12px;
    text-align: center;
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    margin: 8px auto 0;
    border-right: 1px solid rgba(226, 176, 74, 0.5);
    border-bottom: 1px solid rgba(226, 176, 74, 0.5);
    transform: rotate(45deg);
}

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

@keyframes bounce {
    0%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    50% {
        transform: translateX(-50%) translateY(-10px);
    }
}

/* ===== 本次更新亮点 ===== */
.highlights {
    padding: 100px 0 60px;
    background: var(--bg-dark);
}

.highlight-carousel {
    position: relative;
    margin-top: 40px;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.highlight-slides {
    display: flex;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.highlight-slide {
    min-width: 100%;
    flex-shrink: 0;
}

.highlight-image {
    height: 400px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.highlight-1 {
    background: url('images/highlight-1.jpg') center / cover no-repeat;
}

.highlight-2 {
    background: url('images/highlight-2.jpg') center / cover no-repeat;
}

.highlight-3 {
    background: url('images/highlight-3.jpg') center / cover no-repeat;
}

.highlight-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(10, 10, 26, 0.55) 0%, rgba(10, 10, 26, 0.7) 100%);
    z-index: 0;
}

.highlight-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.highlight-icon {
    font-size: 64px;
    margin-bottom: 24px;
    color: var(--primary-gold);
    filter: drop-shadow(0 0 20px rgba(226, 176, 74, 0.4));
}

.highlight-content h3 {
    font-size: 42px;
    font-weight: 600;
    margin-bottom: 12px;
    background: var(--primary-gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 2px 12px rgba(0, 0, 0, 0.6));
}

.highlight-content p {
    font-size: 18px;
    color: var(--text-secondary);
    text-shadow: 0 1px 10px rgba(0, 0, 0, 0.5);
}

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 24px;
}

.dot {
    padding: 6px 16px;
    border: 1px solid var(--border-color);
    background: transparent;
    border-radius: 20px;
    font-size: 12px;
    color: var(--text-tertiary);
    cursor: pointer;
    transition: all 0.3s ease;
}

.dot:hover {
    border-color: var(--primary-gold);
    color: var(--primary-gold);
}

.dot.active {
    background: var(--primary-gold);
    border-color: var(--primary-gold);
    color: var(--bg-dark);
}

/* ===== 核心功能 ===== */
.core-features {
    padding: 80px 0;
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-secondary) 100%);
}

.features-grid-large {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.feature-large-card {
    padding: 36px 28px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all 0.4s ease;
}

.feature-large-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-gold);
    box-shadow: 0 20px 60px rgba(226, 176, 74, 0.1);
    background: rgba(226, 176, 74, 0.03);
}

.feature-large-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-large-card h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.feature-large-card > p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 20px;
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.feature-list li {
    font-size: 13px;
    color: var(--text-tertiary);
}

/* ===== 成员管理详情 ===== */
.management {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.mgmt-showcase {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 40px;
    align-items: center;
}

.mgmt-left {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.mgmt-item {
    display: flex;
    gap: 20px;
    padding: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.3s ease;
}

.mgmt-item:hover {
    border-color: var(--border-gold);
}

.mgmt-item.active {
    border-color: var(--primary-gold);
    background: rgba(226, 176, 74, 0.05);
}

.mgmt-num {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-gold);
    line-height: 1;
    flex-shrink: 0;
    opacity: 0.6;
}

.mgmt-item.active .mgmt-num {
    opacity: 1;
}

.mgmt-content h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.mgmt-content p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.mgmt-preview {
    background: rgba(26, 26, 46, 0.8);
    border: 1px solid var(--border-gold);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 20px;
    background: rgba(226, 176, 74, 0.08);
    border-bottom: 1px solid var(--border-gold);
    font-size: 13px;
    color: var(--text-secondary);
}

.preview-badge {
    padding: 4px 12px;
    background: var(--primary-gold);
    color: var(--bg-dark);
    border-radius: 10px;
    font-size: 12px;
    font-weight: 500;
}

.preview-table {
    padding: 4px 0;
}

.preview-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1.2fr 1fr;
    padding: 12px 20px;
    font-size: 13px;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
    align-items: center;
}

.preview-row:last-child {
    border-bottom: none;
}

.preview-row.head {
    font-size: 12px;
    color: var(--text-tertiary);
    background: rgba(255, 255, 255, 0.02);
    font-weight: 500;
}

.ptag {
    display: inline-block;
    padding: 2px 10px;
    font-size: 11px;
    border-radius: 10px;
}

.ptag.gold {
    background: rgba(226, 176, 74, 0.15);
    color: var(--primary-gold);
}

.ptag.blue {
    background: rgba(66, 153, 225, 0.15);
    color: #4299e1;
}

.ptag.green {
    background: rgba(72, 187, 120, 0.15);
    color: #48bb78;
}

.status-active {
    color: #48bb78;
    font-size: 12px;
}

/* ===== 通知系统 ===== */
.notification {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-dark) 100%);
}

.notif-showcase {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.notif-card {
    padding: 32px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
}

.notif-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-gold);
    box-shadow: 0 12px 40px rgba(226, 176, 74, 0.08);
}

.notif-card-icon {
    font-size: 40px;
    margin-bottom: 16px;
}

.notif-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.notif-card > p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
}

.notif-demo-box {
    padding: 16px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 10px;
}

.notif-demo-item {
    display: flex;
    gap: 12px;
    padding: 12px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 8px;
    border-left: 3px solid var(--primary-gold);
}

.notif-demo-item.unread {
    background: rgba(226, 176, 74, 0.08);
}

.notif-demo-icon {
    font-size: 24px;
    flex-shrink: 0;
}

.notif-demo-content {
    flex: 1;
    min-width: 0;
}

.notif-demo-title {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.notif-demo-text {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ===== 使用体验 ===== */
.experience {
    padding: 100px 0;
    background: var(--bg-dark);
}

.exp-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 80px;
}

.exp-feature {
    text-align: center;
    padding: 40px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
}

.exp-feature:hover {
    transform: translateY(-4px);
    border-color: var(--border-gold);
    box-shadow: 0 12px 40px rgba(226, 176, 74, 0.08);
}

.exp-icon {
    font-size: 44px;
    margin-bottom: 16px;
}

.exp-feature h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.exp-feature p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.tech-support {
    margin-top: 60px;
    padding: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
}

.tech-title {
    font-size: 20px;
    font-weight: 600;
    text-align: center;
    color: var(--text-primary);
    margin-bottom: 32px;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.tech-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 16px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    font-size: 14px;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.tech-item:hover {
    border-color: var(--border-gold);
    color: var(--primary-gold);
}

.tech-icon {
    font-size: 18px;
}

/* ===== 双权限体系 ===== */
.roles {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-secondary) 100%);
}

.roles-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    max-width: 900px;
    margin: 0 auto;
}

.role-card {
    padding: 40px 32px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    text-align: center;
    position: relative;
    transition: all 0.3s ease;
}

.role-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.role-card.minister {
    border-color: var(--border-gold);
    background: linear-gradient(180deg, rgba(226, 176, 74, 0.08) 0%, var(--bg-card) 100%);
}

.role-card.member {
    border-color: rgba(66, 153, 225, 0.3);
    background: linear-gradient(180deg, rgba(66, 153, 225, 0.08) 0%, var(--bg-card) 100%);
}

.role-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 4px 12px;
    font-size: 12px;
    border-radius: 10px;
    font-weight: 500;
}

.role-card.minister .role-badge {
    background: rgba(226, 176, 74, 0.15);
    color: var(--primary-gold);
}

.role-card.member .role-badge {
    background: rgba(66, 153, 225, 0.15);
    color: #4299e1;
}

.role-icon {
    font-size: 64px;
    margin-bottom: 20px;
}

.role-card h3 {
    font-size: 28px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.role-desc {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 28px;
}

.role-features {
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.role-features li {
    font-size: 14px;
    color: var(--text-secondary);
    padding: 8px 12px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
}

/* ===== 版本更新 ===== */
.updates {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.version-current {
    text-align: center;
    margin-bottom: 60px;
    padding: 40px;
    background: linear-gradient(135deg, rgba(226, 176, 74, 0.1) 0%, rgba(226, 176, 74, 0.02) 100%);
    border: 1px solid var(--border-gold);
    border-radius: var(--radius-lg);
}

.version-number {
    font-size: 56px;
    font-weight: 700;
    background: var(--primary-gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 8px;
}

.version-label {
    display: inline-block;
    padding: 4px 16px;
    background: var(--primary-gold);
    color: var(--bg-dark);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 12px;
}

.version-desc {
    font-size: 16px;
    color: var(--text-secondary);
}

.changelog-main {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.changelog-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all 0.3s ease;
}

.changelog-item:hover {
    border-color: var(--border-gold);
}

.changelog-item.latest {
    border-color: var(--primary-gold);
    box-shadow: 0 0 0 1px var(--primary-gold), 0 8px 30px rgba(226, 176, 74, 0.1);
}

.changelog-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    background: rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid var(--border-color);
}

.changelog-item.latest .changelog-header {
    background: rgba(226, 176, 74, 0.08);
}

.changelog-version {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.changelog-date {
    font-size: 13px;
    color: var(--text-tertiary);
    padding: 4px 12px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
}

.changelog-item.latest .changelog-date {
    background: var(--primary-gold);
    color: var(--bg-dark);
    font-weight: 500;
}

.changelog-body {
    padding: 24px;
}

.changelog-section {
    margin-bottom: 20px;
}

.changelog-section:last-child {
    margin-bottom: 0;
}

.changelog-section h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--primary-gold);
    margin-bottom: 12px;
}

.changelog-section ul,
.changelog-body > ul {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.changelog-section li,
.changelog-body > ul li {
    font-size: 14px;
    color: var(--text-secondary);
    padding-left: 16px;
    position: relative;
}

.changelog-section li::before,
.changelog-body > ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 6px;
    height: 6px;
    background: var(--primary-gold);
    border-radius: 50%;
    opacity: 0.6;
}

/* ===== CTA区域 ===== */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-dark) 100%);
}

.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: 42px;
    font-weight: 600;
    margin-bottom: 16px;
    background: var(--primary-gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cta-content p {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
}

.cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 36px;
    font-size: 16px;
    font-weight: 500;
    border-radius: 30px;
    transition: all 0.3s ease;
}

.cta-btn.primary {
    background: var(--primary-gold-gradient);
    color: var(--bg-dark);
    box-shadow: 0 8px 30px rgba(226, 176, 74, 0.3);
}

.cta-btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(226, 176, 74, 0.4);
}

.cta-btn.secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.cta-btn.secondary:hover {
    border-color: var(--primary-gold);
    color: var(--primary-gold);
}

.cta-arrow {
    transition: transform 0.3s ease;
}

.cta-btn.primary:hover .cta-arrow {
    transform: translateX(4px);
}

/* ===== 页脚 ===== */
.footer {
    background: var(--bg-darker);
    color: var(--text-secondary);
    padding: 60px 0 30px;
    border-top: 1px solid var(--border-color);
}

.footer-main {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--border-color);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.footer-logo .logo-icon {
    width: 44px;
    height: 44px;
    background: var(--primary-gold-gradient);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    color: var(--bg-dark);
}

.footer-logo .logo-name {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 1px;
}

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

.footer-school {
    font-size: 13px;
    color: var(--text-muted);
}

.footer-links-group {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.footer-col h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-col a {
    font-size: 13px;
    color: var(--text-tertiary);
    transition: color 0.3s ease;
}

.footer-col a:hover {
    color: var(--primary-gold);
}

.footer-bottom {
    padding-top: 30px;
}

.footer-bottom-links {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
    font-size: 13px;
}

.footer-bottom-links a {
    color: var(--text-tertiary);
}

.footer-bottom-links a:hover {
    color: var(--primary-gold);
}

.divider {
    color: var(--text-muted);
}

.copyright {
    font-size: 12px;
    color: var(--text-muted);
}

/* ===== 滚动动画 ===== */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ===== 响应式设计 ===== */
@media (max-width: 968px) {
    .section-title {
        font-size: 36px;
    }

    .features-grid-large,
    .exp-features,
    .notif-showcase {
        grid-template-columns: repeat(2, 1fr);
    }

    .mgmt-showcase {
        grid-template-columns: 1fr;
    }

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

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

    .nav-menu {
        display: none;
        position: absolute;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background: rgba(10, 10, 26, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 20px;
        gap: 16px;
        border-bottom: 1px solid var(--border-color);
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-toggle {
        display: flex;
    }

    .num-7 {
        font-size: 100px;
    }

    .hero-title {
        font-size: 28px;
    }

    .highlight-content h3 {
        font-size: 32px;
    }

    .highlight-image {
        height: 300px;
    }

    .demo-sidebar {
        display: none;
    }

    .footer-main {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-links-group {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 640px) {
    .section-title {
        font-size: 28px;
        margin-bottom: 40px;
    }

    .section-container {
        padding: 0 16px;
    }

    .num-7 {
        font-size: 80px;
    }

    .hero-title {
        font-size: 24px;
        letter-spacing: 2px;
    }

    .hero-subtitle {
        font-size: 14px;
        letter-spacing: 2px;
    }

    .features-grid-large,
    .exp-features,
    .notif-showcase {
        grid-template-columns: 1fr;
    }

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

    .footer-links-group {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .cta-content h2 {
        font-size: 32px;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .cta-btn {
        width: 100%;
        justify-content: center;
    }

    .version-number {
        font-size: 40px;
    }

    .demo-window {
        height: auto;
    }

    .demo-header {
        flex-direction: column;
        gap: 12px;
        align-items: flex-start;
    }

    .demo-actions {
        width: 100%;
        overflow-x: auto;
    }

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

    .preview-row.head span:nth-child(4),
    .preview-row span:nth-child(4) {
        display: none;
    }
}