```css
/* ============================================
   污网站(esaulcy.cn) - 完整样式表
   光影世界随心看 · 热门电影与冷门佳作齐聚
   ============================================ */

/* ---------- 全局变量与主题体系 ---------- */
:root {
    --bg-primary: #f5f7fb;
    --bg-card: #ffffff;
    --bg-soft: #eef2f8;
    --text-primary: #1a2634;
    --text-secondary: #2d3e50;
    --text-heading: #0f1c2e;
    --text-accent: #0b3b5e;
    --border-light: #dce3ec;
    --nav-bg: rgba(255, 255, 255, 0.82);
    --footer-bg: #101c2b;
    --footer-text: #dfe7f0;
    --white: #ffffff;
    --btn-bg: #1f3a5f;
    --btn-text: #f0f7ff;
    --shadow: 0 8px 25px rgba(0, 0, 0, 0.06);
    --shadow-hover: 0 16px 40px rgba(0, 0, 0, 0.12);
    --banner-gradient: linear-gradient(135deg, #172a3a 0%, #1a3b54 50%, #1e4a6d 100%);
    --card-radius: 20px;
    --transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --font-main: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
}

[data-theme="dark"] {
    --bg-primary: #0d1a26;
    --bg-card: #152433;
    --bg-soft: #1a2c3d;
    --text-primary: #e1e9f2;
    --text-secondary: #cbd5e1;
    --text-heading: #f4f8fd;
    --text-accent: #b5d1ec;
    --border-light: #2d3f54;
    --nav-bg: rgba(15, 30, 46, 0.85);
    --footer-bg: #0a141f;
    --footer-text: #cbdae9;
    --btn-bg: #b8d0e8;
    --btn-text: #0b1e2f;
    --shadow: 0 8px 25px rgba(0, 0, 0, 0.5);
    --shadow-hover: 0 16px 40px rgba(0, 0, 0, 0.7);
    --banner-gradient: linear-gradient(145deg, #0b1725, #102433, #0e2a3f);
}

/* ---------- 基础重置与全局 ---------- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-main);
    line-height: 1.75;
    font-size: 17px;
    transition: background-color 0.4s ease, color 0.4s ease;
    overflow-x: hidden;
    min-height: 100vh;
}

/* ---------- 排版 ---------- */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-heading);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 0.6rem;
    letter-spacing: -0.01em;
}

h1 {
    font-size: clamp(2.2rem, 5vw, 3.2rem);
    letter-spacing: -0.03em;
    font-weight: 800;
}

h2 {
    font-size: clamp(1.8rem, 3.5vw, 2.4rem);
    margin-top: 2.2rem;
    margin-bottom: 1.2rem;
    border-left: 6px solid #2c5f8a;
    padding-left: 1.2rem;
    position: relative;
}

h2::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -8px;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #2c5f8a, transparent);
    border-radius: 4px;
}

h3 {
    font-size: clamp(1.3rem, 2.2vw, 1.65rem);
    margin-top: 1.5rem;
    color: var(--text-accent);
    font-weight: 600;
}

h4 {
    font-size: clamp(1.1rem, 1.8vw, 1.3rem);
    color: var(--text-secondary);
    font-weight: 600;
}

p {
    color: var(--text-primary);
    margin-bottom: 1.2rem;
    font-weight: 400;
    line-height: 1.8;
}

a {
    color: #1d5b8e;
    text-decoration: none;
    transition: color 0.25s, text-decoration 0.25s;
    text-underline-offset: 3px;
}

a:hover {
    color: #0f3c5c;
    text-decoration: underline;
    text-decoration-thickness: 1.5px;
}

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

strong {
    font-weight: 700;
    color: var(--text-heading);
}

/* ---------- 容器 ---------- */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
}

/* ---------- 导航栏 ---------- */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--nav-bg);
    backdrop-filter: blur(18px) saturate(180%);
    -webkit-backdrop-filter: blur(18px) saturate(180%);
    border-bottom: 1px solid var(--border-light);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
    transition: background 0.4s ease, border-color 0.4s ease;
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 24px;
    flex-wrap: wrap;
    gap: 10px;
}

.logo {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text-heading);
    text-decoration: none;
    background: linear-gradient(145deg, #0f2c44, #1d4b6e);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.02em;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: scale(1.03);
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 1.8rem;
    align-items: center;
    list-style: none;
    flex-wrap: wrap;
    margin: 0;
    padding: 0;
}

.nav-links a {
    color: var(--text-secondary);
    font-weight: 500;
    text-decoration: none;
    font-size: 1.02rem;
    border-bottom: 2px solid transparent;
    padding-bottom: 4px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #2c6c9e, #4a9fd8);
    transition: width 0.3s ease;
}

.nav-links a:hover {
    color: var(--text-heading);
    text-decoration: none;
}

.nav-links a:hover::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    background: transparent;
    border: 1px solid var(--border-light);
    color: var(--text-primary);
    font-size: 1.8rem;
    padding: 0 12px;
    border-radius: 10px;
    cursor: pointer;
    line-height: 1.4;
    transition: all 0.3s ease;
}

.menu-toggle:hover {
    background: var(--bg-soft);
}

/* ---------- 按钮 ---------- */
.btn {
    background-color: var(--btn-bg);
    color: var(--btn-text);
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    display: inline-block;
    text-decoration: none;
    transition: all 0.35s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.12);
    font-size: 1rem;
    letter-spacing: 0.02em;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s ease;
}

.btn:hover {
    filter: brightness(1.15);
    color: var(--btn-text);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    text-decoration: none;
}

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

.btn:active {
    transform: translateY(0);
}

/* ---------- Hero Banner ---------- */
.hero {
    background: var(--banner-gradient);
    color: white;
    padding: 70px 0;
    margin: 24px 0 40px;
    border-radius: 28px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -30%;
    width: 80%;
    height: 200%;
    background: radial-gradient(circle at center, rgba(255,255,255,0.06) 0%, transparent 70%);
    animation: heroGlow 8s ease-in-out infinite alternate;
}

@keyframes heroGlow {
    0% { transform: translateX(0) rotate(0deg); opacity: 0.6; }
    100% { transform: translateX(20px) rotate(3deg); opacity: 1; }
}

.hero-content {
    padding: 20px 30px;
    text-align: center;
    color: #ffffff;
    position: relative;
    z-index: 2;
}

.hero h1 {
    color: #ffffff;
    font-size: clamp(2.2rem, 5.5vw, 3.4rem);
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
    margin-bottom: 16px;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.hero p {
    color: #e8f0fe;
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    max-width: 800px;
    margin: 0 auto 20px;
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
    line-height: 1.7;
}

.hero .btn {
    background-color: #ffffff;
    color: #0b1f2e;
    margin-top: 24px;
    font-weight: 700;
    box-shadow: 0 8px 30px rgba(255, 255, 255, 0.2);
}

.hero .btn:hover {
    background-color: #e0edf9;
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 12px 35px rgba(255, 255, 255, 0.3);
}

/* ---------- 卡片网格 ---------- */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 28px;
    margin: 40px 0;
}

.card {
    background-color: var(--bg-card);
    border-radius: var(--card-radius);
    padding: 28px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
    transition: all 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #2c5f8a, #4a9fd8, #2c5f8a);
    background-size: 200% 100%;
    animation: gradientMove 3s ease infinite;
    opacity: 0;
    transition: opacity 0.4s ease;
}

@keyframes gradientMove {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(44, 108, 158, 0.3);
}

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

.card h3 {
    margin-top: 8px;
    color: var(--text-heading);
    font-size: 1.4rem;
}

.card h4 {
    color: var(--text-heading);
    font-size: 1.2rem;
    margin-bottom: 12px;
}

.card p {
    color: var(--text-primary);
    line-height: 1.7;
}

/* ---------- 文章列表 ---------- */
.article-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.article-item {
    padding: 22px 18px;
    border-bottom: 1px solid var(--border-light);
    border-radius: 12px;
    transition: all 0.35s ease;
    position: relative;
    padding-left: 24px;
}

.article-item::before {
    content: '▶';
    position: absolute;
    left: 4px;
    top: 22px;
    font-size: 0.7rem;
    color: #2c6c9e;
    opacity: 0.6;
    transition: all 0.3s ease;
}

.article-item:hover {
    background: var(--bg-card);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transform: translateX(6px);
}

.article-item:hover::before {
    opacity: 1;
    color: #1d5b8e;
}

.article-item h4 {
    color: var(--text-heading);
    font-size: 1.25rem;
    margin-bottom: 6px;
    transition: color 0.3s ease;
}

.article-item:hover h4 {
    color: #1d5b8e;
}

.article-meta {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.article-item p {
    color: var(--text-primary);
    font-size: 0.95rem;
    margin-bottom: 0;
    opacity: 0.85;
}

/* ---------- FAQ 样式 ---------- */
.faq-details {
    background-color: var(--bg-card);
    border-radius: 16px;
    padding: 0 24px;
    margin: 12px 0;
    border: 1px solid var(--border-light);
    transition: all 0.35s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
}

.faq-details:hover {
    border-color: rgba(44, 108, 158, 0.3);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
}

.faq-question {
    padding: 18px 0;
    font-weight: 700;
    color: var(--text-heading);
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.05rem;
    transition: color 0.3s ease;
    position: relative;
}

.faq-question::after {
    content: '▾';
    font-size: 1.2rem;
    color: #2c6c9e;
    transition: transform 0.3s ease;
}

.faq-details:hover .faq-question {
    color: #1d5b8e;
}

.faq-answer {
    padding: 0 0 20px 0;
    color: var(--text-primary);
    line-height: 1.7;
    border-top: 1px dashed var(--border-light);
    padding-top: 14px;
}

/* ---------- 面包屑 ---------- */
.breadcrumb {
    padding: 18px 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

.breadcrumb a {
    color: var(--text-accent);
    text-decoration: none;
    transition: color 0.3s ease;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

/* ---------- 表格 ---------- */
.table-wrap {
    overflow-x: auto;
    border-radius: 16px;
    box-shadow: var(--shadow);
    margin: 30px 0;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-card);
    border-radius: 16px;
    overflow: hidden;
}

th, td {
    padding: 16px 20px;
    border: 1px solid var(--border-light);
    color: var(--text-primary);
    text-align: left;
}

th {
    background: linear-gradient(135deg, #1f3247, #2c4a6b);
    color: white;
    font-weight: 600;
    letter-spacing: 0.03em;
}

tr:nth-child(even) {
    background: var(--bg-soft);
}

tr:hover {
    background: rgba(44, 108, 158, 0.08);
}

/* ---------- 主题切换按钮 ---------- */
.theme-toggle {
    background: transparent;
    border: 1px solid var(--border-light);
    color: var(--text-primary);
    padding: 8px 16px;
    border-radius: 40px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.theme-toggle:hover {
    background: var(--bg-soft);
    transform: rotate(15deg) scale(1.05);
}

/* ---------- 返回顶部 ---------- */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: linear-gradient(135deg, #1f3a5f, #2c6c9e);
    color: white;
    border: none;
    border-radius: 50%;
    width: 52px;
    height: 52px;
    font-size: 24px;
    cursor: pointer;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.25);
    z-index: 200;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    display: none;
    opacity: 0;
    transform: translateY(20px);
}

.back-to-top.show {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.35);
    background: linear-gradient(135deg, #2c6c9e, #4a9fd8);
}

/* ---------- Footer ---------- */
footer {
    background-color: var(--footer-bg);
    color: var(--footer-text);
    padding: 50px 0 40px;
    margin-top: 70px;
    border-radius: 32px 32px 0 0;
    position: relative;
    overflow: hidden;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, #2c6c9e, #4a9fd8, #2c6c9e, transparent);
}

footer a {
    color: #aec9e0;
    transition: color 0.3s ease;
}

footer a:hover {
    color: #ffffff;
    text-decoration: underline;
}

footer .copyright {
    color: #b6cbd9;
    opacity: 0.9;
}

/* ---------- 章节通用样式 ---------- */
section {
    margin: 30px 0;
    scroll-margin-top: 100px;
}

section[id] {
    scroll-margin-top: 90px;
}

/* ---------- 背景装饰块 ---------- */
[style*="background: var(--bg-card)"] {
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow);
    transition: all 0.4s ease;
}

[style*="background: var(--bg-card)"]:hover {
    box-shadow: var(--shadow-hover);
}

/* ---------- 联系区块 ---------- */
#contact > div {
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow);
    transition: all 0.4s ease;
}

#contact > div:hover {
    box-shadow: var(--shadow-hover);
}

#contact p {
    margin-bottom: 0.6rem;
}

/* ---------- 响应式 ---------- */
@media (max-width: 992px) {
    .container {
        padding: 0 20px;
    }
    
    .hero {
        padding: 50px 0;
        border-radius: 22px;
    }
    
    .card-grid {
        gap: 20px;
    }
}

@media (max-width: 768px) {
    body {
        font-size: 16px;
    }
    
    .container {
        padding: 0 16px;
    }
    
    .nav-inner {
        padding: 12px 16px;
    }
    
    .nav-links {
        display: none;
        width: 100%;
        flex-direction: column;
        align-items: flex-start;
        padding: 20px 0;
        gap: 1rem;
        animation: slideDown 0.4s ease;
    }
    
    @keyframes slideDown {
        from { opacity: 0; transform: translateY(-10px); }
        to { opacity: 1; transform: translateY(0); }
    }
    
    .nav-links.open {
        display: flex;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .nav-links a {
        font-size: 1.1rem;
        padding: 6px 0;
        width: 100%;
        border-bottom: 1px solid var(--border-light);
    }
    
    .nav-links a::after {
        display: none;
    }
    
    .theme-toggle {
        margin-top: 8px;
        width: 100%;
        justify-content: center;
    }
    
    .hero {
        padding: 40px 0;
        margin-bottom: 30px;
        border-radius: 18px;
    }
    
    .hero-content {
        padding: 16px;
    }
    
    .hero h1 {
        font-size: 1.9rem;
    }
    
    .hero p {
        font-size: 1.05rem;
    }
    
    h2 {
        font-size: 1.5rem;
        padding-left: 14px;
    }
    
    .card-grid {
        grid-template-columns: 1fr;
        gap: 18px;
    }
    
    .card {
        padding: 22px;
    }
    
    .article-item {
        padding-left: 20px;
    }
    
    .faq-details {
        padding: 0 16px;
    }
    
    .faq-question {
        font-size: 0.98rem;
        padding: 14px 0;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 46px;
        height: 46px;
        font-size: 20px;
    }
    
    footer {
        padding: 35px 0;
        border-radius: 24px 24px 0 0;
    }
    
    th, td {
        padding: 12px 14px;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 12px;
    }
    
    .logo {
        font-size: 1.4rem;
    }
    
    .hero {
        padding: 30px 0;
    }
    
    .hero h1 {
        font-size: 1.6rem;
    }
    
    .hero p {
        font-size: 0.98rem;
    }
    
    h2 {
        font-size: 1.3rem;
    }
    
    .card {
        padding: 18px;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    
    .faq-question {
        font-size: 0.9rem;
    }
    
    .breadcrumb {
        font-size: 0.85rem;
    }
}

/* ---------- 滚动动画 ---------- */
@media (prefers-reduced-motion: no-preference) {
    section {
        animation: fadeInUp 0.8s ease both;
    }
    
    .card, .article-item, .faq-details {
        animation: fadeInUp 0.6s ease both;
    }
    
    .card:nth-child(1), .article-item:nth-child(1), .faq-details:nth-child(1) { animation-delay: 0.05s; }
    .card:nth-child(2), .article-item:nth-child(2), .faq-details:nth-child(2) { animation-delay: 0.1s; }
    .card:nth-child(3), .article-item:nth-child(3), .faq-details:nth-child(3) { animation-delay: 0.15s; }
    .card:nth-child(4), .article-item:nth-child(4), .faq-details:nth-child(4) { animation-delay: 0.2s; }
    .card:nth-child(5), .article-item:nth-child(5), .faq-details:nth-child(5) { animation-delay: 0.25s; }
    .card:nth-child(6), .article-item:nth-child(6), .faq-details:nth-child(6) { animation-delay: 0.3s; }
    .card:nth-child(7), .article-item:nth-child(7), .faq-details:nth-child(7) { animation-delay: 0.35s; }
    .card:nth-child(8), .article-item:nth-child(8), .faq-details:nth-child(8) { animation-delay: 0.4s; }
    .card:nth-child(9), .article-item:nth-child(9), .faq-details:nth-child(9) { animation-delay: 0.45s; }
    .card:nth-child(10), .article-item:nth-child(10), .faq-details:nth-child(10) { animation-delay: 0.5s; }
}

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

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

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

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, #2c6c9e, #1f3a5f);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, #4a9fd8, #2c6c9e);
}

/* ---------- 选中状态 ---------- */
::selection {
    background: rgba(44, 108, 158, 0.3);
    color: var(--text-heading);
}

/* ---------- 打印优化 ---------- */
@media print {
    .navbar, .back-to-top, .hero .btn, .theme-toggle, .menu-toggle {
        display: none !important;
    }
    
    body {
        background: white;
        color: black;
        font-size: 12pt;
    }
    
    .container {
        max-width: 100%;
        padding: 0;
    }
    
    .card, .faq-details, .article-item {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ddd;
    }
    
    .hero {
        background: white !important;
        color: black !important;
        padding: 20px 0;
        box-shadow: none;
        border: 1px solid #ddd;
    }
    
    .hero h1, .hero p {
        color: black !important;
        text-shadow: none;
    }
}

/* ---------- 无障碍焦点可见性 ---------- */
:focus-visible {
    outline: 3px solid #4a9fd8;
    outline-offset: 2px;
    border-radius: 4px;
}

/* ---------- 高对比度支持 ---------- */
@media (prefers-contrast: high) {
    :root {
        --border-light: #000000;
        --shadow: none;
        --shadow-hover: none;
    }
    
    .card, .faq-details, .navbar, footer {
        border-width: 2px;
    }
}

/* ---------- 减少动态效果偏好 ---------- */
@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;
    }
}
```