```css
/* ============================================================
   星空动漫 - 仰望星空看动漫，热门番剧在线追
   网站: poijdk.cn
   完整样式表 - 渐变Banner / 毛玻璃 / 圆角卡片 / 暗色模式 / 响应式
   ============================================================ */

/* ---------- CSS 变量 ---------- */
:root {
    --primary: #1a5f9e;
    --primary-light: #4a9fdf;
    --primary-dark: #0d3b6b;
    --primary-glow: #7bb8ff;
    --accent: #6c5ce7;
    --accent-2: #00cec9;
    --bg: #f4f7fc;
    --bg-alt: #eef2f9;
    --surface: #ffffff;
    --surface-alt: #f8fafd;
    --text: #1e2b3c;
    --text-secondary: #3a5a7a;
    --text-muted: #5a6f86;
    --text-light: #8aa0b8;
    --border: rgba(0, 0, 0, .06);
    --border-strong: #ccd9e8;
    --shadow-sm: 0 1px 6px rgba(0, 0, 0, .03);
    --shadow: 0 2px 12px rgba(0, 0, 0, .05);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, .1);
    --shadow-glow: 0 4px 20px rgba(26, 95, 158, .3);
    --radius-sm: 8px;
    --radius: 14px;
    --radius-lg: 20px;
    --radius-full: 9999px;
    --glass-bg: rgba(255, 255, 255, .72);
    --glass-border: rgba(255, 255, 255, .35);
    --glass-blur: blur(16px) saturate(180%);
    --gradient-primary: linear-gradient(135deg, #1a5f9e 0%, #4a9fdf 50%, #7bb8ff 100%);
    --gradient-hero: linear-gradient(135deg, #e8f0fe 0%, #d4e4fc 40%, #c8dcfa 100%);
    --gradient-accent: linear-gradient(135deg, #6c5ce7 0%, #a29bfe 100%);
    --gradient-dark: linear-gradient(135deg, #0b1a2f 0%, #122b44 100%);
    --transition: .25s cubic-bezier(.4, 0, .2, 1);
    --transition-slow: .5s cubic-bezier(.4, 0, .2, 1);
}

/* ---------- 暗色模式变量 ---------- */
body.dark-mode {
    --primary: #4a9fdf;
    --primary-light: #7bb8ff;
    --primary-dark: #2a6fbb;
    --primary-glow: #a0d0ff;
    --bg: #0b1a2f;
    --bg-alt: #0d1f33;
    --surface: #122b44;
    --surface-alt: #0d1f33;
    --text: #e0e9f5;
    --text-secondary: #a0b8d0;
    --text-muted: #8aa8c0;
    --text-light: #6a8aa8;
    --border: #1e3a5a;
    --border-strong: #1e3a5a;
    --shadow-sm: 0 1px 6px rgba(0, 0, 0, .3);
    --shadow: 0 2px 16px rgba(0, 0, 0, .4);
    --shadow-lg: 0 8px 36px rgba(0, 0, 0, .5);
    --shadow-glow: 0 4px 24px rgba(74, 159, 223, .35);
    --glass-bg: rgba(18, 43, 68, .75);
    --glass-border: rgba(74, 159, 223, .15);
    --gradient-hero: linear-gradient(135deg, #122b44 0%, #0d1f33 50%, #0b1a2f 100%);
}

/* ---------- 基础重置 ---------- */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    transition: background var(--transition-slow), color var(--transition-slow);
    overflow-x: hidden;
    min-height: 100vh;
    position: relative;
}

/* 星空背景装饰 */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    background:
        radial-gradient(1.5px 1.5px at 10% 20%, rgba(74, 159, 223, .25), transparent),
        radial-gradient(1px 1px at 30% 60%, rgba(123, 184, 255, .2), transparent),
        radial-gradient(2px 2px at 55% 15%, rgba(160, 208, 255, .18), transparent),
        radial-gradient(1px 1px at 75% 40%, rgba(74, 159, 223, .22), transparent),
        radial-gradient(1.5px 1.5px at 90% 75%, rgba(123, 184, 255, .15), transparent),
        radial-gradient(1px 1px at 45% 85%, rgba(160, 208, 255, .2), transparent),
        radial-gradient(1px 1px at 20% 90%, rgba(74, 159, 223, .12), transparent),
        radial-gradient(1.5px 1.5px at 65% 55%, rgba(123, 184, 255, .1), transparent);
    opacity: .6;
    transition: opacity var(--transition-slow);
}

body.dark-mode::before {
    opacity: 1;
}

body > * {
    position: relative;
    z-index: 1;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--primary-dark);
}

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

ul,
ol {
    list-style: none;
}

/* ---------- 容器 ---------- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

/* ============================================================
   头部导航 - 毛玻璃效果
   ============================================================ */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: 0 2px 20px rgba(0, 0, 0, .06);
    transition: background var(--transition), box-shadow var(--transition), border-color var(--transition);
}

body.dark-mode .header {
    background: rgba(13, 31, 51, .82);
    box-shadow: 0 2px 24px rgba(0, 0, 0, .4);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0;
    flex-wrap: wrap;
    gap: 12px;
}

/* Logo */
.logo-area {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.logo-svg {
    width: 42px;
    height: 42px;
    flex-shrink: 0;
    filter: drop-shadow(0 2px 8px rgba(74, 159, 223, .35));
    transition: transform var(--transition), filter var(--transition);
}

.logo-area:hover .logo-svg {
    transform: rotate(-8deg) scale(1.08);
    filter: drop-shadow(0 4px 14px rgba(74, 159, 223, .55));
}

.logo-text {
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: .5px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    transition: filter var(--transition);
}

body.dark-mode .logo-text {
    background: linear-gradient(135deg, #7bb8ff 0%, #a0d0ff 50%, #4a9fdf 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* 导航 */
.nav {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
    align-items: center;
}

.nav a {
    padding: 7px 13px;
    border-radius: var(--radius-sm);
    font-size: .9rem;
    font-weight: 500;
    color: var(--text);
    position: relative;
    transition: background var(--transition), color var(--transition), transform var(--transition);
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 2px;
    transform: translateX(-50%);
    transition: width var(--transition);
}

.nav a:hover {
    background: rgba(26, 95, 158, .08);
    color: var(--primary);
    transform: translateY(-1px);
}

.nav a:hover::after {
    width: 60%;
}

body.dark-mode .nav a {
    color: var(--text-secondary);
}

body.dark-mode .nav a:hover {
    background: rgba(74, 159, 223, .12);
    color: var(--primary-light);
}

/* 头部操作区 */
.header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

/* 搜索框 */
.search-box {
    display: flex;
    align-items: center;
    background: rgba(26, 95, 158, .06);
    border: 1px solid transparent;
    border-radius: var(--radius-full);
    padding: 2px 4px 2px 14px;
    transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.search-box:focus-within {
    background: var(--surface);
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(74, 159, 223, .15);
}

body.dark-mode .search-box {
    background: rgba(74, 159, 223, .08);
}

body.dark-mode .search-box:focus-within {
    background: var(--surface-alt);
    box-shadow: 0 0 0 3px rgba(74, 159, 223, .2);
}

.search-box input {
    border: none;
    background: transparent;
    outline: none;
    padding: 6px 4px;
    font-size: .88rem;
    width: 120px;
    color: inherit;
    font-family: inherit;
}

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

.search-btn {
    background: var(--gradient-primary);
    color: #fff;
    border: none;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: transform var(--transition), box-shadow var(--transition), filter var(--transition);
}

.search-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-glow);
    filter: brightness(1.1);
}

.search-btn:active {
    transform: scale(.95);
}

/* 主题切换 */
.theme-toggle {
    background: rgba(26, 95, 158, .06);
    border: 1px solid var(--border-strong);
    border-radius: 50%;
    width: 36px;
    height: 36px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
    color: inherit;
    flex-shrink: 0;
}

.theme-toggle:hover {
    background: rgba(26, 95, 158, .12);
    transform: rotate(30deg) scale(1.05);
    box-shadow: var(--shadow);
}

.theme-toggle:active {
    transform: rotate(30deg) scale(.95);
}

body.dark-mode .theme-toggle {
    background: rgba(74, 159, 223, .08);
    border-color: var(--border);
}

body.dark-mode .theme-toggle:hover {
    background: rgba(74, 159, 223, .18);
}

.theme-toggle svg {
    transition: transform var(--transition-slow);
}

body.dark-mode .theme-toggle svg {
    transform: rotate(180deg);
}

/* 移动菜单按钮 */
.mobile-menu-btn {
    display: none;
    background: rgba(26, 95, 158, .06);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-sm);
    padding: 6px 11px;
    cursor: pointer;
    color: inherit;
    font-size: 1.15rem;
    line-height: 1;
    transition: background var(--transition), transform var(--transition);
}

.mobile-menu-btn:hover {
    background: rgba(26, 95, 158, .12);
    transform: scale(1.05);
}

body.dark-mode .mobile-menu-btn {
    background: rgba(74, 159, 223, .08);
    border-color: var(--border);
}

/* ============================================================
   面包屑
   ============================================================ */
.breadcrumb {
    padding: 14px 0;
    font-size: .85rem;
    color: var(--text-muted);
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    align-items: center;
}

.breadcrumb a {
    color: var(--primary);
    padding: 2px 4px;
    border-radius: 4px;
    transition: background var(--transition), color var(--transition);
}

.breadcrumb a:hover {
    background: rgba(26, 95, 158, .08);
    color: var(--primary-dark);
}

body.dark-mode .breadcrumb a:hover {
    background: rgba(74, 159, 223, .12);
    color: var(--primary-light);
}

.breadcrumb span {
    margin: 0 2px;
    color: var(--text-light);
}

/* ============================================================
   轮播 - 渐变Banner
   ============================================================ */
.carousel {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg);
    margin: 16px 0 36px;
    background: var(--gradient-hero);
    box-shadow: var(--shadow-lg);
    isolation: isolate;
}

.carousel::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
    border: 1px solid var(--glass-border);
    pointer-events: none;
    z-index: 3;
}

.carousel-inner {
    display: flex;
    transition: transform .6s cubic-bezier(.4, 0, .2, 1);
    will-change: transform;
}

.carousel-slide {
    min-width: 100%;
    padding: 56px 48px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    background: var(--gradient-hero);
    position: relative;
    overflow: hidden;
}

/* 轮播装饰光晕 */
.carousel-slide::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(74, 159, 223, .18) 0%, transparent 70%);
    pointer-events: none;
}

.carousel-slide::after {
    content: '';
    position: absolute;
    bottom: -40%;
    left: -10%;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(108, 92, 231, .12) 0%, transparent 70%);
    pointer-events: none;
}

.carousel-slide h2 {
    font-size: 2rem;
    margin: 12px 0 10px;
    color: var(--text);
    line-height: 1.3;
    position: relative;
    z-index: 1;
    font-weight: 800;
    letter-spacing: -.5px;
}

.carousel-slide p {
    font-size: 1rem;
    color: var(--text-secondary);
    max-width: 600px;
    position: relative;
    z-index: 1;
    line-height: 1.75;
}

.carousel-slide .badge {
    position: relative;
    z-index: 1;
}

/* 轮播指示点 */
.carousel-dots {
    position: absolute;
    bottom: 18px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 4;
}

.carousel-dot {
    width: 10px;
    height: 10px;
    border-radius: var(--radius-full);
    background: rgba(26, 95, 158, .25);
    border: none;
    cursor: pointer;
    transition: background var(--transition), transform var(--transition), width var(--transition);
    padding: 0;
}

.carousel-dot:hover {
    background: rgba(26, 95, 158, .5);
    transform: scale(1.2);
}

.carousel-dot.active {
    background: var(--gradient-primary);
    width: 28px;
    transform: scale(1);
}

body.dark-mode .carousel-dot {
    background: rgba(74, 159, 223, .25);
}

body.dark-mode .carousel-dot:hover {
    background: rgba(74, 159, 223, .5);
}

body.dark-mode .carousel-dot.active {
    background: var(--gradient-primary);
}

/* ============================================================
   通用区块
   ============================================================ */
.section {
    padding: 52px 0;
}

.section-title {
    font-size: 1.65rem;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 12px;
    line-height: 1.35;
    letter-spacing: -.3px;
}

.section-title::before {
    content: '';
    display: inline-block;
    width: 5px;
    height: 30px;
    border-radius: 3px;
    background: var(--gradient-primary);
    flex-shrink: 0;
    box-shadow: 0 0 12px rgba(74, 159, 223, .4);
}

.section-sub {
    color: var(--text-muted);
    font-size: .95rem;
    margin-bottom: 30px;
    padding-left: 17px;
}

/* ============================================================
   卡片 - 圆角 + 毛玻璃 + hover动画
   ============================================================ */
.card {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 26px;
    box-shadow: var(--shadow);
    transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition);
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(74, 159, 223, .25);
}

.card:hover::before {
    opacity: 1;
}

body.dark-mode .card {
    background: var(--surface);
    border-color: var(--border);
}

body.dark-mode .card:hover {
    border-color: rgba(74, 159, 223, .3);
    box-shadow: 0 8px 36px rgba(0, 0, 0, .5), 0 0 0 1px rgba(74, 159, 223, .1);
}

/* 卡片内文字颜色适配 */
.card p,
.card li,
.card span {
    color: var(--text-secondary);
}

.card h2,
.card h3,
.card h4 {
    color: var(--text);
}

/* ============================================================
   网格布局
   ============================================================ */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

/* ============================================================
   统计数字
   ============================================================ */
.stats-row {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
    justify-content: center;
    margin: 36px 0 8px;
}

.stats-box {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 26px 32px;
    text-align: center;
    box-shadow: var(--shadow);
    flex: 1;
    min-width: 150px;
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.stats-box::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    border-radius: 3px 3px 0 0;
    background: var(--gradient-primary);
    transition: width var(--transition);
}

.stats-box:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(74, 159, 223, .25);
}

.stats-box:hover::after {
    width: 80%;
}

.stats-number {
    font-size: 2.1rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.2;
    letter-spacing: -1px;
}

body.dark-mode .stats-number {
    background: linear-gradient(135deg, #7bb8ff 0%, #a0d0ff 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stats-label {
    font-size: .88rem;
    color: var(--text-muted);
    margin-top: 6px;
}

/* ============================================================
   文章列表
   ============================================================ */
.article-item {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 22px 26px;
    border-left: 4px solid var(--primary);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition);
    position: relative;
    overflow: hidden;
}

.article-item::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: linear-gradient(90deg, rgba(74, 159, 223, .06), transparent);
    transition: width var(--transition-slow);
    pointer-events: none;
}

.article-item:hover {
    transform: translateX(6px);
    box-shadow: var(--shadow-lg);
    border-left-color: var(--primary-light);
}

.article-item:hover::after {
    width: 100%;
}

body.dark-mode .article-item {
    background: var(--surface);
    border-left-color: var(--primary-light);
}

.article-item h4 {
    font-size: 1.08rem;
    margin-bottom: 8px;
    position: relative;
    z-index: 1;
    line-height: 1.5;
}

.article-item h4 a {
    color: var(--text);
    transition: color var(--transition);
}

.article-item h4 a:hover {
    color: var(--primary);
}

body.dark-mode .article-item h4 a {
    color: var(--text);
}

body.dark-mode .article-item h4 a:hover {
    color: var(--primary-light);
}

.article-meta {
    font-size: .8rem;
    color: var(--text-light);
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 8px;
    position: relative;
    z-index: 1;
}

.article-meta span {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.article-summary {
    font-size: .9rem;
    color: var(--text-secondary);
    line-height: 1.7;
    position: relative;
    z-index: 1;
}

.read-more {
    font-size: .85rem;
    font-weight: 600;
    color: var(--primary);
    display: inline-block;
    margin-top: 10px;
    position: relative;
    z-index: 1;
    transition: color var(--transition), gap var(--transition);
}

.read-more:hover {
    color: var(--primary-dark);
    text-decoration: underline;
    text-underline-offset: 3px;
}

body.dark-mode .read-more:hover {
    color: var(--primary-light);
}

/* ============================================================
   FAQ 手风琴
   ============================================================ */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    background: var(--surface);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

.faq-item:hover {
    border-color: rgba(74, 159, 223, .25);
    box-shadow: var(--shadow);
}

.faq-item.open {
    border-color: rgba(74, 159, 223, .35);
    box-shadow: var(--shadow);
}

.faq-question {
    padding: 17px 22px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    background: var(--surface-alt);
    transition: background var(--transition), color var(--transition);
    color: var(--text);
    user-select: none;
    line-height: 1.5;
}

.faq-question:hover {
    background: rgba(26, 95, 158, .06);
}

body.dark-mode .faq-question {
    background: var(--surface-alt);
    color: var(--text);
}

body.dark-mode .faq-question:hover {
    background: rgba(74, 159, 223, .1);
}

.faq-icon {
    font-size: 1.3rem;
    font-weight: 300;
    transition: transform var(--transition-slow), color var(--transition);
    color: var(--primary);
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.faq-item.open .faq-icon {
    transform: rotate(45deg);
    color: var(--primary-light);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height .4s cubic-bezier(.4, 0, .2, 1), padding .3s;
    padding: 0 22px;
    color: var(--text-secondary);
    font-size: .92rem;
    line-height: 1.75;
}

.faq-item.open .faq-answer {
    max-height: 600px;
    padding: 18px 22px;
}

/* ============================================================
   HowTo 步骤
   ============================================================ */
.howto-steps {
    display: flex;
    flex-direction: column;
    gap: 20px;
    counter-reset: step;
}

.howto-step {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 22px 26px 22px 68px;
    position: relative;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.howto-step:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow);
    border-color: rgba(74, 159, 223, .25);
}

.howto-step::before {
    counter-increment: step;
    content: counter(step);
    position: absolute;
    left: 22px;
    top: 22px;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: .95rem;
    box-shadow: 0 4px 12px rgba(26, 95, 158, .3);
    transition: transform var(--transition), box-shadow var(--transition);
}

.howto-step:hover::before {
    transform: scale(1.1);
    box-shadow: 0 6px 18px rgba(26, 95, 158, .45);
}

.howto-step h4 {
    margin-bottom: 6px;
    font-size: 1.05rem;
    color: var(--text);
}

.howto-step p {
    font-size: .9rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ============================================================
   团队卡片
   ============================================================ */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

.team-card {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 26px 22px;
    text-align: center;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.team-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(74, 159, 223, .25);
}

.team-avatar {
    width: 76px;
    height: 76px;
    margin: 0 auto 14px;
    border-radius: 50%;
    transition: transform var(--transition), box-shadow var(--transition);
    box-shadow: 0 4px 16px rgba(26, 95, 158, .15);
}

.team-card:hover .team-avatar {
    transform: scale(1.08) rotate(-3deg);
    box-shadow: 0 6px 24px rgba(26, 95, 158, .3);
}

.team-name {
    font-weight: 700;
    margin-bottom: 4px;
    font-size: 1rem;
    color: var(--text);
}

.team-role {
    font-size: .82rem;
    color: var(--text-muted);
}

/* ============================================================
   联系方式
   ============================================================ */
.contact-info {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 30px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    transition: box-shadow var(--transition), border-color var(--transition);
}

.contact-info:hover {
    box-shadow: var(--shadow-lg);
    border-color: rgba(74, 159, 223, .2);
}

.contact-row {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
    align-items: flex-start;
}

.contact-row:last-child {
    margin-bottom: 0;
}

.contact-row svg {
    flex-shrink: 0;
    margin-top: 3px;
    color: var(--primary);
    transition: transform var(--transition);
}

.contact-row:hover svg {
    transform: scale(1.15);
}

.contact-row strong {
    min-width: 76px;
    font-size: .9rem;
    color: var(--text);
    flex-shrink: 0;
}

.contact-row span {
    font-size: .9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ============================================================
   新闻列表
   ============================================================ */
.news-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.news-item {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 20px 24px;
    border-left: 3px solid var(--primary-light);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    position: relative;
}

.news-item:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow);
    border-left-color: var(--accent);
}

.news-item h4 {
    font-size: 1rem;
    margin-bottom: 5px;
    line-height: 1.5;
}

.news-item h4 a {
    color: var(--text);
    transition: color var(--transition);
}

.news-item h4 a:hover {
    color: var(--primary);
}

body.dark-mode .news-item h4 a:hover {
    color: var(--primary-light);
}

.news-item .meta {
    font-size: .78rem;
    color: var(--text-light);
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.news-item p {
    font-size: .88rem;
    color: var(--text-secondary);
    margin-top: 6px;
    line-height: 1.65;
}

/* ============================================================
   徽章
   ============================================================ */
.badge {
    display: inline-block;
    padding: 3px 12px;
    border-radius: var(--radius-full);
    font-size: .75rem;
    font-weight: 600;
    background: rgba(26, 95, 158, .1);
    color: var(--primary);
    border: 1px solid rgba(26, 95, 158, .15);
    transition: background var(--transition), transform var(--transition);
}

.badge:hover {
    background: rgba(26, 95, 158, .18);
    transform: translateY(-1px);
}

body.dark-mode .badge {
    background: rgba(74, 159, 223, .15);
    color: var(--primary-light);
    border-color: rgba(74, 159, 223, .2);
}

/* ============================================================
   页脚
   ============================================================ */
.footer {
    background: var(--gradient-dark);
    color: #b0c8e0;
    padding: 52px 0 28px;
    margin-top: 52px;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(74, 159, 223, .4), transparent);
}

.footer::after {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(74, 159, 223, .08) 0%, transparent 70%);
    pointer-events: none;
}

body.dark-mode .footer {
    background: linear-gradient(135deg, #081524 0%, #0b1a2f 100%);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 36px;
    position: relative;
    z-index: 1;
}

.footer h4 {
    color: #ffffff;
    margin-bottom: 16px;
    font-size: 1rem;
    font-weight: 700;
    position: relative;
    padding-bottom: 8px;
}

.footer h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 24px;
    height: 2px;
    border-radius: 2px;
    background: var(--gradient-primary);
}

.footer p {
    font-size: .85rem;
    color: #8aa8c0;
    line-height: 1.75;
}

.footer a {
    color: #8aa8c0;
    font-size: .88rem;
    display: block;
    margin-bottom: 9px;
    transition: color var(--transition), transform var(--transition), padding-left var(--transition);
    position: relative;
}

.footer a:hover {
    color: #ffffff;
    transform: translateX(4px);
    padding-left: 4px;
}

.footer-bottom {
    border-top: 1px solid rgba(74, 159, 223, .15);
    margin-top: 36px;
    padding-top: 22px;
    text-align: center;
    font-size: .82rem;
    color: #6a8aa8;
    position: relative;
    z-index: 1;
}

.footer-bottom p {
    color: #6a8aa8;
}

.footer-bottom a {
    display: inline;
    margin: 0 8px;
    color: #8aa8c0;
}

.footer-bottom a:hover {
    color: #fff;
    transform: none;
    padding-left: 0;
}

/* ============================================================
   返回顶部
   ============================================================ */
.back-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 999;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: #fff;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-glow);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition), visibility var(--transition), transform var(--transition), box-shadow var(--transition);
    transform: translateY(12px) scale(.9);
}

.back-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.back-top:hover {
    transform: translateY(-4px) scale(1.08);
    box-shadow: 0 8px 28px rgba(26, 95, 158, .55);
}

.back-top:active {
    transform: translateY(-2px) scale(1);
}

/* ============================================================
   滚动动画
   ============================================================ */
.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity .7s cubic-bezier(.4, 0, .2, 1), transform .7s cubic-bezier(.4, 0, .2, 1);
    will-change: opacity, transform;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================================
   暗色模式补充适配
   ============================================================ */
body.dark-mode a {
    color: var(--primary-light);
}

body.dark-mode a:hover {
    color: var(--primary-glow);
}

body.dark-mode .section-title {
    color: var(--text);
}

body.dark-mode .section-sub {
    color: var(--text-muted);
}

body.dark-mode .stats-label {
    color: var(--text-muted);
}

body.dark-mode .article-meta {
    color: var(--text-light);
}

body.dark-mode .article-summary {
    color: var(--text-secondary);
}

body.dark-mode .faq-answer {
    color: var(--text-secondary);
}

body.dark-mode .howto-step p {
    color: var(--text-secondary);
}

body.dark-mode .contact-row span {
    color: var(--text-secondary);
}

body.dark-mode .team-role {
    color: var(--text-muted);
}

body.dark-mode .news-item .meta {
    color: var(--text-light);
}

body.dark-mode .news-item p {
    color: var(--text-secondary);
}

body.dark-mode .breadcrumb {
    color: var(--text-muted);
}

body.dark-mode .breadcrumb span {
    color: var(--text-light);
}

body.dark-mode .search-box input::placeholder {
    color: var(--text-light);
}

body.dark-mode input,
body.dark-mode textarea {
    background: var(--surface-alt);
    color: var(--text);
    border-color: var(--border);
}

body.dark-mode .carousel-slide h2 {
    color: var(--text);
}

body.dark-mode .carousel-slide p {
    color: var(--text-secondary);
}

/* 卡片内联样式颜色覆盖 */
.card [style*="color:#3a5a7a"] {
    color: var(--text-secondary) !important;
}

body.dark-mode .card [style*="color:#3a5a7a"] {
    color: var(--text-secondary) !important;
}

.card [style*="color:#0b1a2f"] {
    color: var(--text) !important;
}

body.dark-mode .card [style*="color:#0b1a2f"] {
    color: var(--text) !important;
}

.card [style*="color:#5a6f86"] {
    color: var(--text-muted) !important;
}

body.dark-mode .card [style*="color:#5a6f86"] {
    color: var(--text-muted) !important;
}

/* 内联样式中的背景色适配 */
body.dark-mode [style*="background:#f8fafd"] {
    background: var(--surface-alt) !important;
}

body.dark-mode [style*="background:#e8f0fe"] {
    background: rgba(74, 159, 223, .1) !important;
}

/* ============================================================
   响应式 - 平板 (≤900px)
   ============================================================ */
@media (max-width: 900px) {
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr 1fr;
    }

    .section {
        padding: 44px 0;
    }

    .section-title {
        font-size: 1.45rem;
    }

    .carousel-slide {
        padding: 44px 36px;
    }

    .carousel-slide h2 {
        font-size: 1.6rem;
    }

    .stats-row {
        gap: 16px;
    }

    .stats-box {
        padding: 22px 24px;
    }
}

/* ============================================================
   响应式 - 手机 (≤640px)
   ============================================================ */
@media (max-width: 640px) {
    html {
        font-size: 15px;
    }

    .container {
        padding: 0 16px;
    }

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    /* 头部移动端布局 */
    .header-inner {
        flex-direction: row;
        flex-wrap: wrap;
        align-items: center;
        padding: 10px 0;
        gap: 10px;
    }

    .logo-area {
        flex: 1;
    }

    .logo-svg {
        width: 36px;
        height: 36px;
    }

    .logo-text {
        font-size: 1.15rem;
    }

    .nav {
        display: none;
        width: 100%;
        flex-direction: column;
        gap: 2px;
        order: 3;
        padding-top: 8px;
        border-top: 1px solid var(--border);
        margin-top: 4px;
    }

    .nav.open {
        display: flex;
        animation: slideDown .3s ease;
    }

    @keyframes slideDown {
        from {
            opacity: 0;
            transform: translateY(-8px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    .nav a {
        padding: 10px 14px;
        border-radius: var(--radius-sm);
        width: 100%;
    }

    .nav a::after {
        display: none;
    }

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

    .header-actions {
        width: 100%;
        justify-content: space-between;
        order: 2;
    }

    .search-box {
        flex: 1;
    }

    .search-box input {
        width: 100%;
        min-width: 0;
    }

    /* 轮播移动端 */
    .carousel {
        border-radius: var(--radius);
        margin: 12px 0 28px;
    }

    .carousel-slide {
        padding: 36px 24px;
    }

    .carousel-slide h2 {
        font-size: 1.3rem;
    }

    .carousel-slide p {
        font-size: .9rem;
    }

    .carousel-dots {
        bottom: 12px;
    }

    /* 区块移动端 */
    .section {
        padding: 34px 0;
    }

    .section-title {
        font-size: 1.25rem;
        gap: 10px;
    }

    .section-title::before {
        width: 4px;
        height: 24px;
    }

    .section-sub {
        font-size: .88rem;
        margin-bottom: 22px;
        padding-left: 14px;
    }

    /* 卡片移动端 */
    .card {
        padding: 20px;
        border-radius: var(--radius-sm);
    }

    /* 统计移动端 */
    .stats-row {
        flex-direction: column;
        gap: 12px;
        margin: 24px 0 4px;
    }

    .stats-box {
        padding: 20px 24px;
    }

    .stats-number {
        font-size: 1.8rem;
    }

    /* 文章移动端 */
    .article-item {
        padding: 18px 20px;
    }

    .article-item:hover {
        transform: translateX(3px);
    }

    .article-item h4 {
        font-size: 1rem;
    }

    /* FAQ移动端 */
    .faq-question {
        padding: 15px 18px;
        font-size: .95rem;
    }

    .faq-answer {
        padding: 0 18px;
        font-size: .88rem;
    }

    .faq-item.open .faq-answer {
        padding: 16px 18px;
    }

    /* HowTo移动端 */
    .howto-step {
        padding: 18px 20px 18px 60px;
    }

    .howto-step::before {
        left: 18px;
        top: 18px;
        width: 30px;
        height: 30px;
        font-size: .88rem;
    }

    /* 新闻移动端 */
    .news-item {
        padding: 16px 18px;
    }

    .news-item:hover {
        transform: translateX(3px);
    }

    /* 联系移动端 */
    .contact-info {
        padding: 22px 20px;
    }

    .contact-row {
        flex-direction: column;
        gap: 4px;
    }

    .contact-row strong {
        min-width: auto;
    }

    /* 团队移动端 */
    .team-card {
        padding: 22px 18px;
    }

    /* 页脚移动端 */
    .footer {
        padding: 40px 0 24px;
        margin-top: 40px;
    }

    .footer-grid {
        gap: 28px;
    }

    .footer a:hover {
        transform: translateX(3px);
    }

    /* 返回顶部移动端 */
    .back-top {
        bottom: 20px;
        right: 20px;
        width: 42px;
        height: 42px;
    }

    .back-top:hover {
        transform: translateY(-3px) scale(1.05);
    }
}

/* ============================================================
   超小屏幕 (≤380px)
   ============================================================ */
@media (max-width: 380px) {
    html {
        font-size: 14px;
    }

    .container {
        padding: 0 12px;
    }

    .logo-text {
        font-size: 1rem;
    }

    .carousel-slide {
        padding: 28px 18px;
    }

    .carousel-slide h2 {
        font-size: 1.15rem;
    }

    .section-title {
        font-size: 1.15rem;
    }

    .stats-number {
        font-size: 1.6rem;
    }

    .howto-step {
        padding: 16px 16px 16px 54px;
    }

    .howto-step::before {
        left: 14px;
        top: 16px;
        width: 28px;
        height: 28px;
        font-size: .82rem;
    }
}

/* ============================================================
   打印样式
   ============================================================ */
@media print {
    .header,
    .back-top,
    .carousel-dots,
    .mobile-menu-btn,
    .theme-toggle,
    .search-box {
        display: none !important;
    }

    body {
        background: #fff;
        color: #000;
    }

    .card,
    .article-item,
    .faq-item,
    .news-item {
        box-shadow: none;
        border: 1px solid #ddd;
        break-inside: avoid;
    }
}

/* ============================================================
   无障碍与减少动画偏好
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
        scroll-behavior: auto !important;
    }

    .fade-in {
        opacity: 1;
        transform: none;
    }
}

/* 焦点可见性 */
a:focus-visible,
button:focus-visible,
input:focus-visible {
    outline: 2px solid var(--primary-light);
    outline-offset: 2px;
    border-radius: 4px;
}

/* 选中文本样式 */
::selection {
    background: rgba(74, 159, 223, .3);
    color: var(--text);
}

body.dark-mode ::selection {
    background: rgba(74, 159, 223, .4);
    color: #fff;
}

/* 滚动条美化 */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(26, 95, 158, .25);
    border-radius: 5px;
    border: 2px solid transparent;
    background-clip: content-box;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(26, 95, 158, .45);
    background-clip: content-box;
}

body.dark-mode ::-webkit-scrollbar-thumb {
    background: rgba(74, 159, 223, .3);
    background-clip: content-box;
}

body.dark-mode ::-webkit-scrollbar-thumb:hover {
    background: rgba(74, 159, 223, .5);
    background-clip: content-box;
}
```