/* ===================================
   全局设置与CSS变量
   =================================== */
:root {
    /* 主色系 */
    --color-primary: #0D0F1A;
    --color-accent: #48D5FF;
    --color-energy: #FF4D8A;
    --color-neo-green: #5BFF9C;
    --color-neutral: #8A93B2;
    --color-neutral-light: #C7CCE8;

    /* 渐变色 */
    --gradient-cool: linear-gradient(135deg, #48D5FF, #5BFF9C);
    --gradient-hot: linear-gradient(135deg, #FF4D8A, #FFC857);

    /* 间距体系 */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;

    /* 字体 */
    --font-primary: 'Noto Sans SC', 'Poppins', sans-serif;
    --font-display: 'Orbitron', 'Noto Sans SC', sans-serif;

    /* 圆角 */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 999px;

    /* 阴影 */
    --shadow-neon: 0 0 20px rgba(72, 213, 255, 0.25);
    --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.3);

    /* 过渡 */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

body[data-theme="light"] {
    --color-primary: #F4F6FB;
    --color-accent: #2F8CFF;
    --color-energy: #FF5E9B;
    --color-neo-green: #36D67C;
    --color-neutral: #4D5C7A;
    --color-neutral-light: #0B1A32;
    --shadow-card: 0 10px 30px rgba(11, 26, 50, 0.08);
    background-color: #F4F6FB;
    color: var(--color-neutral-light);
    background-image:
        radial-gradient(circle at 25% 25%, rgba(47, 140, 255, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 60%, rgba(255, 94, 155, 0.08) 0%, transparent 55%);
}

body[data-theme="light"] .header {
    background-color: rgba(255, 255, 255, 0.92);
    box-shadow: 0 10px 25px rgba(11, 26, 50, 0.08);
}

body[data-theme="light"] .section-alt {
    background-color: rgba(255, 255, 255, 0.9);
    color: var(--color-neutral-light);
}

body[data-theme="light"] .btn-join-header {
    box-shadow: 0 10px 25px rgba(47, 140, 255, 0.25);
}

body[data-theme="light"] .info-card,
body[data-theme="light"] .step-item,
body[data-theme="light"] .command-card {
    background: rgba(255, 255, 255, 0.85);
    border-color: rgba(47, 140, 255, 0.25);
    color: var(--color-neutral-light);
}

body[data-theme="light"] .rules-section {
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(11, 26, 50, 0.08);
    box-shadow: 0 12px 32px rgba(11, 26, 50, 0.08);
}

body[data-theme="light"] .command-card {
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(11, 26, 50, 0.08);
}

body[data-theme="light"] .rules-subtitle,
body[data-theme="light"] .command-title,
body[data-theme="light"] .step-title {
    color: var(--color-neutral-light);
}

body[data-theme="light"] .hero-section {
    color: var(--color-neutral-light);
    background: radial-gradient(circle at 20% 30%, rgba(47, 140, 255, 0.15) 0%, transparent 60%),
        radial-gradient(circle at 80% 70%, rgba(255, 94, 155, 0.15) 0%, transparent 60%);
}

body[data-theme="light"] .hero-bg {
    opacity: 0.2;
}

body[data-theme="light"] .hero-desc,
body[data-theme="light"] .hero-title,
body[data-theme="light"] .section-title,
body[data-theme="light"] .owner-text,
body[data-theme="light"] .command-desc,
body[data-theme="light"] .command-example {
    color: var(--color-neutral-light);
}

body[data-theme="light"] .steps-list .step-item,
body[data-theme="light"] .how-step {
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(11, 26, 50, 0.08);
    color: var(--color-neutral-light);
}

body[data-theme="light"] .hero-tag,
body[data-theme="light"] .hero-badges .badge,
body[data-theme="light"] .section-line {
    border-color: rgba(11, 26, 50, 0.1);
    color: var(--color-neutral-light);
}

body[data-theme="light"] .server-status-card {
    background: rgba(255, 255, 255, 0.82);
    color: var(--color-neutral-light);
}

body[data-theme="light"] .hero-image-wrapper .image-badge {
    background: rgba(47, 140, 255, 0.15);
    color: var(--color-neutral-light);
}

body[data-theme="light"] .owner-message,
body[data-theme="light"] .owner-right,
body[data-theme="light"] .owner-section,
body[data-theme="light"] .owner-section-grid .owner-section {
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid rgba(11, 26, 50, 0.08);
    color: var(--color-neutral-light);
}

body[data-theme="light"] .owner-message-title,
body[data-theme="light"] .owner-subtitle,
body[data-theme="light"] .owner-name {
    color: var(--color-neutral-light);
}

body[data-theme="light"] .owner-message-content .highlight {
    color: #EF476F;
}

body[data-theme="light"] .section,
body[data-theme="light"] .section-alt {
    color: var(--color-neutral-light);
}

body[data-theme="light"] .footer {
    background: rgba(11, 26, 50, 0.05);
    color: var(--color-neutral-light);
}

body[data-theme="light"] .footer-link,
body[data-theme="light"] .footer-title,
body[data-theme="light"] .footer-slogan {
    color: var(--color-neutral-light);
}

body[data-theme="light"] .back-to-top {
    background: linear-gradient(135deg, #2F8CFF, #36D67C);
    color: #fff;
}

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

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

body {
    font-family: var(--font-primary);
    background-color: var(--color-primary);
    color: var(--color-neutral-light);
    line-height: 1.6;
    overflow-x: hidden;
    background-image:
        radial-gradient(circle at 20% 30%, rgba(72, 213, 255, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(255, 77, 138, 0.05) 0%, transparent 50%);
    background-attachment: fixed;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--color-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--color-accent);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-energy);
}

/* ===================================
   容器
   =================================== */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===================================
   固定导航栏
   =================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(13, 15, 26, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(72, 213, 255, 0.2);
    transition: var(--transition-normal);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo-img {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 2px solid var(--color-accent);
    animation: pulse-glow 2s infinite;
}

@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 0 10px rgba(72, 213, 255, 0.5);
    }
    50% {
        box-shadow: 0 0 20px rgba(72, 213, 255, 0.8);
    }
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-title {
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 700;
    color: var(--color-accent);
    text-shadow: 0 0 10px rgba(72, 213, 255, 0.5);
}

.logo-subtitle {
    font-size: 12px;
    color: var(--color-neutral);
}

/* 桌面导航 */
.nav-desktop {
    display: flex;
    gap: var(--spacing-lg);
}

.nav-link {
    position: relative;
    color: var(--color-neutral-light);
    text-decoration: none;
    font-weight: 500;
    padding: 8px 0;
    transition: var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-cool);
    transition: var(--transition-normal);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-accent);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

/* 头部CTA按钮 */
.btn-join-header {
    display: none;
    padding: 12px 24px;
    background: var(--gradient-cool);
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: var(--transition-normal);
    box-shadow: var(--shadow-neon);
}

.btn-join-header:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(72, 213, 255, 0.4);
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    background: none;
    border: 2px solid var(--color-accent);
    color: var(--color-accent);
    padding: 10px 15px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition-fast);
}

.mobile-menu-btn:hover {
    background: rgba(72, 213, 255, 0.1);
}

.theme-toggle {
    margin-left: 16px;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    border: none;
    background: var(--gradient-cool);
    box-shadow: 0 10px 25px rgba(72, 213, 255, 0.35);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    color: var(--color-primary);
}

.theme-toggle:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 35px rgba(72, 213, 255, 0.45);
}

.theme-toggle:active {
    transform: scale(0.96);
}

.theme-toggle i {
    font-size: 1.1rem;
}

body[data-theme="light"] .theme-toggle {
    background: linear-gradient(135deg, #2F8CFF, #36D67C);
    color: #F4F6FB;
    box-shadow: 0 10px 25px rgba(47, 140, 255, 0.3);
}

/* 移动端菜单 */
.mobile-menu {
    background: rgba(13, 15, 26, 0.98);
    backdrop-filter: blur(15px);
    border-bottom: 1px solid rgba(72, 213, 255, 0.2);
}

.mobile-menu.hidden {
    display: none;
}

.mobile-nav {
    display: flex;
    flex-direction: column;
    padding: var(--spacing-sm) 0;
}

.mobile-nav-link {
    color: var(--color-neutral-light);
    text-decoration: none;
    padding: var(--spacing-sm);
    border-left: 3px solid transparent;
    transition: var(--transition-fast);
}

.mobile-nav-link:hover {
    color: var(--color-accent);
    background: rgba(72, 213, 255, 0.05);
    border-left-color: var(--color-accent);
}

/* ===================================
   Hero区块
   =================================== */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 100px;
    padding-bottom: 60px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 30% 20%, rgba(72, 213, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 70% 80%, rgba(255, 77, 138, 0.1) 0%, transparent 50%);
    z-index: 0;
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%2348D5FF' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.3;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.hero-left {
    animation: fadeInUp 0.8s ease-out;
}

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

/* Hero标语 */
.hero-tag {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.tag-line {
    flex: 1;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--color-accent), transparent);
}

.tag-text {
    color: var(--color-neo-green);
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 1px;
}

/* Hero标题 */
.hero-title {
    font-family: var(--font-display);
    font-size: clamp(36px, 5vw, 64px);
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

.title-accent {
    color: var(--color-accent);
    text-shadow: 0 0 20px rgba(72, 213, 255, 0.6);
}

/* Hero徽章 */
.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.badge {
    padding: 8px 16px;
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 600;
}

.badge-primary {
    background: rgba(72, 213, 255, 0.15);
    color: var(--color-accent);
    border: 1px solid rgba(72, 213, 255, 0.3);
}

.badge-secondary {
    background: rgba(91, 255, 156, 0.15);
    color: var(--color-neo-green);
    border: 1px solid rgba(91, 255, 156, 0.3);
}

.badge-accent {
    background: rgba(255, 77, 138, 0.15);
    color: var(--color-energy);
    border: 1px solid rgba(255, 77, 138, 0.3);
}

/* Hero描述 */
.hero-desc {
    font-size: 18px;
    line-height: 1.8;
    color: var(--color-neutral-light);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
}

/* 服务器状态卡片 */
.server-status-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: rgba(13, 15, 26, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(72, 213, 255, 0.2);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-card);
}

.status-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-neo-green);
    box-shadow: 0 0 10px var(--color-neo-green);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.2);
        opacity: 0.8;
    }
}

.status-text {
    font-size: 16px;
    font-weight: 600;
}

.status-online {
    color: var(--color-neo-green);
}

/* CTA按钮 */
.btn-cta {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 16px 32px;
    background: var(--gradient-cool);
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 700;
    font-size: 18px;
    border-radius: var(--radius-md);
    box-shadow: 0 0 20px rgba(72, 213, 255, 0.4);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: var(--transition-slow);
}

.btn-cta:hover::before {
    left: 100%;
}

.btn-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 30px rgba(72, 213, 255, 0.6);
}

/* Hero右侧图片 */
.hero-right {
    animation: fadeIn 1s ease-out 0.3s both;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.hero-image-wrapper {
    position: relative;
}

.image-glow {
    position: absolute;
    inset: -20px;
    background: var(--gradient-cool);
    border-radius: var(--radius-lg);
    filter: blur(40px);
    opacity: 0.3;
    z-index: 0;
}

.hero-image {
    position: relative;
    width: 100%;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(72, 213, 255, 0.3);
    box-shadow: var(--shadow-neon);
    z-index: 1;
}

.image-badge {
    position: absolute;
    bottom: -15px;
    right: -15px;
    background: var(--gradient-hot);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transform: rotate(3deg);
    box-shadow: var(--shadow-card);
    z-index: 2;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(3deg);
    }
    50% {
        transform: translateY(-10px) rotate(3deg);
    }
}

.image-badge p {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 16px;
    color: white;
    margin: 0;
}

/* 滚动提示 */
.scroll-hint {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

.scroll-hint a {
    color: var(--color-accent);
    font-size: 24px;
    transition: var(--transition-fast);
}

.scroll-hint a:hover {
    color: var(--color-energy);
}

/* ===================================
   通用Section样式
   =================================== */
.section {
    padding: var(--spacing-xl) 0;
    position: relative;
}

.section-alt {
    background: rgba(0, 0, 0, 0.2);
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-xl);
    gap: var(--spacing-md);
}

.section-line {
    width: 60px;
    height: 1px;
    background: var(--gradient-cool);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(28px, 4vw, 48px);
    font-weight: 700;
    text-align: center;
}

/* ===================================
   信息卡片网格
   =================================== */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.info-card {
    background: rgba(13, 15, 26, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(72, 213, 255, 0.2);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    transition: var(--transition-normal);
}

.info-card:hover {
    transform: translateY(-5px);
    border-color: rgba(72, 213, 255, 0.5);
    box-shadow: var(--shadow-neon);
}

.card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.card-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.icon-primary {
    background: rgba(72, 213, 255, 0.15);
    color: var(--color-accent);
}

.icon-secondary {
    background: rgba(91, 255, 156, 0.15);
    color: var(--color-neo-green);
}

.icon-accent {
    background: rgba(255, 77, 138, 0.15);
    color: var(--color-energy);
}

.card-title {
    font-size: 20px;
    font-weight: 700;
}

.card-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.card-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-neutral-light);
}

.card-list i {
    color: var(--color-accent);
    width: 20px;
}

/* ===================================
   加入服务器
   =================================== */
.join-content {
    max-width: 900px;
    margin: 0 auto;
}

.join-intro {
    text-align: center;
    font-size: 20px;
    margin-bottom: var(--spacing-xl);
    color: var(--color-neutral-light);
}

.steps-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.step-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(13, 15, 26, 0.5);
    border-left: 3px solid var(--color-accent);
    border-radius: var(--radius-md);
    transition: var(--transition-normal);
}

.step-item:hover {
    background: rgba(13, 15, 26, 0.7);
    border-left-width: 5px;
}

.step-number {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--gradient-cool);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 700;
}

.step-content {
    flex: 1;
}

.step-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--color-accent);
}

.step-desc {
    color: var(--color-neutral-light);
    line-height: 1.8;
}

.code-highlight {
    background: rgba(72, 213, 255, 0.15);
    color: var(--color-accent);
    padding: 2px 8px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-weight: 600;
}

.code-block {
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(72, 213, 255, 0.3);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm);
    margin: var(--spacing-sm) 0;
    font-family: 'Courier New', monospace;
    color: var(--color-neo-green);
    font-size: 16px;
}

/* 注意事项 */
.notice-box {
    background: rgba(255, 77, 138, 0.1);
    border: 1px solid rgba(255, 77, 138, 0.3);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
}

.notice-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 20px;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-energy);
}

.notice-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.notice-list li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
}

.notice-list i {
    color: var(--color-neo-green);
    margin-top: 4px;
    flex-shrink: 0;
}

/* ===================================
   服务器规则
   =================================== */
.rules-content {
    max-width: 1200px;
    margin: 0 auto;
}

.rules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-lg);
}

.rules-section {
    background: rgba(13, 15, 26, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(72, 213, 255, 0.2);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
}

.rules-subtitle {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 24px;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-accent);
}

.rules-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.rules-list li {
    display: flex;
    gap: var(--spacing-sm);
}

.rule-num {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(72, 213, 255, 0.15);
    color: var(--color-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
}

/* ===================================
   服务器指令
   =================================== */
.commands-content {
    max-width: 1200px;
    margin: 0 auto;
}

.commands-how {
    margin-bottom: var(--spacing-xl);
}

.commands-subtitle {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 28px;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-accent);
}

.how-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.how-step {
    background: rgba(13, 15, 26, 0.7);
    border: 1px solid rgba(72, 213, 255, 0.2);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    text-align: center;
}

.how-number {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--spacing-sm);
    border-radius: 50%;
    background: var(--gradient-cool);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 700;
}

.how-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.how-desc {
    color: var(--color-neutral-light);
    line-height: 1.6;
}

.commands-list-section {
    margin-top: var(--spacing-xl);
}

.commands-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.command-card {
    background: rgba(13, 15, 26, 0.7);
    border: 1px solid rgba(91, 255, 156, 0.2);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    transition: var(--transition-normal);
}

.command-card:hover {
    transform: translateY(-5px);
    border-color: rgba(91, 255, 156, 0.5);
    box-shadow: 0 0 20px rgba(91, 255, 156, 0.25);
}

.command-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.command-code {
    background: rgba(91, 255, 156, 0.15);
    color: var(--color-neo-green);
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-family: 'Courier New', monospace;
    font-weight: 700;
    font-size: 16px;
}

.command-title {
    font-size: 18px;
    font-weight: 700;
}

.command-desc {
    margin-bottom: var(--spacing-xs);
    color: var(--color-neutral-light);
}

.command-example {
    font-size: 14px;
    color: var(--color-neutral);
}

.command-example code {
    background: rgba(0, 0, 0, 0.3);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
}

.commands-tip {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: rgba(255, 197, 87, 0.1);
    border: 1px solid rgba(255, 197, 87, 0.3);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
}

.commands-tip i {
    color: #FFC857;
    font-size: 20px;
}

.commands-tip code {
    background: rgba(0, 0, 0, 0.3);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
}

/* ===================================
   关于服主
   =================================== */
.owner-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-xl);
}

.owner-left {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.owner-avatar-wrapper {
    position: relative;
    width: 200px;
    height: 200px;
    margin: 0 auto;
}

.avatar-glow {
    position: absolute;
    inset: -10px;
    background: var(--gradient-hot);
    border-radius: 50%;
    filter: blur(20px);
    opacity: 0.5;
    animation: pulse 2s infinite;
}

.owner-avatar {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 4px solid var(--color-energy);
    object-fit: cover;
    z-index: 1;
}

.owner-badge {
    position: absolute;
    top: -10px;
    right: -10px;
    background: var(--gradient-hot);
    color: white;
    padding: 8px 16px;
    border-radius: var(--radius-md);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 14px;
    transform: rotate(12deg);
    box-shadow: var(--shadow-card);
    z-index: 2;
}

.owner-message {
    background: rgba(13, 15, 26, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 77, 138, 0.2);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
}

.owner-message-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 20px;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-energy);
}

.owner-message-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.owner-message-content p {
    line-height: 1.8;
    color: var(--color-neutral-light);
}

.owner-message-content .highlight {
    color: var(--color-accent);
    font-weight: 700;
}

.owner-right {
    background: rgba(13, 15, 26, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(72, 213, 255, 0.2);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
}

.owner-name {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-md);
    color: var(--color-accent);
    text-shadow: 0 0 10px rgba(72, 213, 255, 0.5);
}

.owner-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.owner-section {
    padding: var(--spacing-sm);
}

.owner-subtitle {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 20px;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--color-accent);
}

.owner-text {
    line-height: 1.8;
    color: var(--color-neutral-light);
}

.owner-section-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

/* ===================================
   页脚
   =================================== */
.footer {
    background: rgba(13, 15, 26, 0.95);
    border-top: 1px solid rgba(72, 213, 255, 0.2);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.footer-logo-img {
    width: 48px;
    height: 48px;
    border-radius: 50%;
}

.footer-logo-text {
    display: flex;
    flex-direction: column;
}

.footer-title {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 700;
    color: var(--color-accent);
}

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

.footer-links-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-accent);
}

.footer-links-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xs);
}

.footer-link {
    color: var(--color-neutral-light);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition-fast);
}

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

.footer-bottom {
    border-top: 1px solid rgba(72, 213, 255, 0.1);
    padding-top: var(--spacing-md);
    text-align: center;
}

.footer-beian,
.footer-copyright,
.footer-valve,
.footer-disclaimer {
    font-size: 14px;
    color: var(--color-neutral);
    margin: 4px 0;
}

.footer-beian a {
    color: var(--color-neutral);
    text-decoration: none;
    transition: var(--transition-fast);
}

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

/* ===================================
   返回顶部按钮
   =================================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-cool);
    color: var(--color-primary);
    border: none;
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    box-shadow: var(--shadow-neon);
    transition: var(--transition-normal);
    opacity: 0;
    visibility: hidden;
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 30px rgba(72, 213, 255, 0.5);
}

/* ===================================
   响应式设计
   =================================== */
@media (max-width: 1024px) {
    .btn-join-header {
        display: inline-block;
    }

    .nav-desktop {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .hero-content {
        grid-template-columns: 1fr;
    }

    .owner-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    .hero-section {
        padding-top: 80px;
    }

    .hero-desc {
        font-size: 16px;
    }

    .hero-right {
        display: none;
    }

    .cards-grid,
    .rules-grid,
    .commands-grid,
    .how-steps {
        grid-template-columns: 1fr;
    }

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

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

    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 32px;
    }

    .hero-badges {
        flex-direction: column;
        align-items: flex-start;
    }

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

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .hero-particles {
        display: none !important;
    }
}