:root {
    --color-dark: #59606d;
    --color-teal: #70acb1;
    --color-mint: #c6f1e7;
    --color-light: #f0fff3;
    --color-white: #ffffff;
    --color-text: #2d3436;
    --color-text-light: #59606d;
    --color-border: #e8f5f0;
    --color-shadow: rgba(89, 96, 109, 0.1);
    --color-accent-hover: #5a9ba0;
    --sidebar-width: 340px;
    --max-width: 1400px;
    --nav-height: 64px;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
    background-color: #f8fdf9;
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ========== 顶部导航 ========== */
.top-nav {
    position: sticky;
    top: 0;
    z-index: 1000;
    width: 100%;
    height: var(--nav-height);
    background: var(--color-white);
    border-bottom: 2px solid var(--color-mint);
    box-shadow: 0 2px 20px var(--color-shadow);
    display: flex;
    align-items: center;
    padding: 0 24px;
    gap: 20px;
}

.nav-brand {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--color-dark);
}

.nav-brand .brand-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, var(--color-teal), var(--color-mint));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: #fff;
    font-weight: bold;
    flex-shrink: 0;
}

.nav-brand h1 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-dark);
    letter-spacing: 0.5px;
    white-space: nowrap;
    margin: 0;
    line-height: 1;
}

.nav-brand h1 span {
    color: var(--color-teal);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 1;
    justify-content: center;
    flex-wrap: wrap;
}

.nav-links a {
    text-decoration: none;
    color: var(--color-text-light);
    font-size: 0.93rem;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 24px;
    transition: var(--transition);
    white-space: nowrap;
    position: relative;
}

.nav-links a:hover,
.nav-links a:focus-visible {
    color: var(--color-teal);
    background: var(--color-light);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 60%;
    height: 2.5px;
    background: var(--color-teal);
    border-radius: 2px;
    transition: transform var(--transition);
}

.nav-links a:hover::after,
.nav-links a:focus-visible::after {
    transform: translateX(-50%) scaleX(1);
}

.nav-actions {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.btn-nav {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    border-radius: 24px;
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    white-space: nowrap;
    letter-spacing: 0.3px;
}

.btn-primary-nav {
    background: var(--color-teal);
    color: #fff;
    box-shadow: 0 4px 14px rgba(112, 172, 177, 0.35);
}

.btn-primary-nav:hover {
    background: var(--color-accent-hover);
    box-shadow: 0 6px 20px rgba(112, 172, 177, 0.5);
    transform: translateY(-1px);
}

/* 移动端汉堡菜单 */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    flex-direction: column;
    gap: 5px;
    z-index: 1001;
}
.menu-toggle span {
    display: block;
    width: 26px;
    height: 2.5px;
    background: var(--color-dark);
    border-radius: 2px;
    transition: var(--transition);
}

/* ========== 主体布局 ========== */
.main-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 24px 20px 40px;
    display: flex;
    gap: 28px;
}

.content-left {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.sidebar-right {
    width: var(--sidebar-width);
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: 22px;
    position: sticky;
    top: calc(var(--nav-height) + 20px);
    align-self: flex-start;
    max-height: calc(100vh - var(--nav-height) - 40px);
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--color-mint) transparent;
    padding-right: 4px;
}

.sidebar-right::-webkit-scrollbar {
    width: 5px;
}
.sidebar-right::-webkit-scrollbar-track {
    background: transparent;
}
.sidebar-right::-webkit-scrollbar-thumb {
    background: var(--color-mint);
    border-radius: 10px;
}

/* ========== 通用区块样式 ========== */
.section-block {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 24px 22px;
    box-shadow: 0 2px 16px var(--color-shadow);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

.section-block:hover {
    box-shadow: 0 6px 28px rgba(89, 96, 109, 0.13);
}

.section-title {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 18px;
    padding-bottom: 12px;
    border-bottom: 3px solid var(--color-mint);
    display: flex;
    align-items: center;
    gap: 10px;
    letter-spacing: 0.4px;
}

.section-title .title-accent {
    display: inline-block;
    width: 6px;
    height: 26px;
    background: var(--color-teal);
    border-radius: 3px;
    flex-shrink: 0;
}

/* ========== 热门漫画网格 ========== */
.comic-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
}

.comic-card {
    background: var(--color-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--color-border);
    transition: var(--transition);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    position: relative;
}

.comic-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(89, 96, 109, 0.18);
    border-color: var(--color-teal);
}

.comic-card .card-img-wrap {
    width: 100%;
    aspect-ratio: 3/4;
    overflow: hidden;
    background: var(--color-light);
    position: relative;
    flex-shrink: 0;
}

.comic-card .card-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
}

.comic-card:hover .card-img-wrap img {
    transform: scale(1.06);
}

.comic-card .card-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    background: var(--color-teal);
    color: #fff;
    font-size: 0.72rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 14px;
    z-index: 2;
    letter-spacing: 0.5px;
}

.comic-card .card-info {
    padding: 10px 12px 14px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.comic-card .card-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--color-dark);
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.comic-card .card-meta {
    font-size: 0.73rem;
    color: #7d8a90;
    display: flex;
    flex-wrap: wrap;
    gap: 4px 10px;
    line-height: 1.4;
}

.comic-card .card-meta span {
    white-space: nowrap;
}

.comic-card .card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-top: 2px;
}

.comic-card .card-tag {
    font-size: 0.68rem;
    background: var(--color-light);
    color: var(--color-teal);
    padding: 3px 9px;
    border-radius: 12px;
    font-weight: 500;
    white-space: nowrap;
}

.comic-card .card-tag.site-tag {
    background: var(--color-teal);
    color: #fff;
}

/* ========== 右侧边栏样式 ========== */
.sidebar-right .section-block {
    padding: 18px 16px;
}
.sidebar-right .section-title {
    font-size: 1.1rem;
    margin-bottom: 12px;
    padding-bottom: 10px;
}

/* 排行榜列表 */
.rank-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.rank-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    cursor: pointer;
    background: #fafefc;
    border: 1px solid transparent;
}

.rank-item:hover {
    background: var(--color-light);
    border-color: var(--color-mint);
}

.rank-num {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    flex-shrink: 0;
    color: #fff;
    background: #b0c4c8;
}

.rank-item:nth-child(1) .rank-num {
    background: #e8895b;
}
.rank-item:nth-child(2) .rank-num {
    background: #e8a85b;
}
.rank-item:nth-child(3) .rank-num {
    background: #c9a85b;
}

.rank-img {
    width: 44px;
    height: 60px;
    border-radius: 6px;
    object-fit: cover;
    flex-shrink: 0;
    background: #eef5f4;
}

.rank-info {
    flex: 1;
    min-width: 0;
}
.rank-name {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-dark);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.rank-stat {
    font-size: 0.73rem;
    color: #8a959b;
}

/* 数据统计卡片 */
.stat-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}
.stat-card {
    text-align: center;
    padding: 14px 8px;
    background: var(--color-light);
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-mint);
}
.stat-card .stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-teal);
    line-height: 1;
}
.stat-card .stat-label {
    font-size: 0.7rem;
    color: var(--color-text-light);
    margin-top: 4px;
}

.update-time {
    font-size: 0.72rem;
    color: #8a959b;
    text-align: right;
    margin-top: 6px;
}

/* 评论列表 */
.comment-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
    max-height: 600px;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--color-mint) transparent;
    padding-right: 4px;
}
.comment-list::-webkit-scrollbar {
    width: 4px;
}
.comment-list::-webkit-scrollbar-thumb {
    background: var(--color-mint);
    border-radius: 8px;
}
.comment-item {
    padding: 12px 14px;
    background: #fafefc;
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--color-mint);
    transition: var(--transition);
}
.comment-item:hover {
    border-left-color: var(--color-teal);
    background: #f5fcfa;
}
.comment-user {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--color-dark);
    margin-bottom: 4px;
}
.comment-text {
    font-size: 0.8rem;
    color: #5a656b;
    line-height: 1.55;
}

/* ========== 角色介绍 ========== */
.character-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 16px;
}
.character-card {
    background: var(--color-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--color-border);
    transition: var(--transition);
    text-align: center;
}
.character-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px var(--color-shadow);
}
.character-card img {
    width: 100%;
    aspect-ratio: 1/1;
    object-fit: cover;
    display: block;
    background: #eef5f4;
}
.character-card .char-info {
    padding: 12px;
}
.character-card .char-name {
    font-weight: 700;
    color: var(--color-dark);
    font-size: 0.95rem;
}
.character-card .char-role {
    font-size: 0.75rem;
    color: var(--color-teal);
    margin-top: 2px;
    font-weight: 500;
}
.character-card .char-desc {
    font-size: 0.73rem;
    color: #7d8a90;
    margin-top: 6px;
    line-height: 1.4;
}

/* ========== 常见问题 ========== */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.faq-item {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: var(--transition);
    background: #fafefc;
}
.faq-item summary {
    padding: 14px 18px;
    cursor: pointer;
    font-weight: 600;
    color: var(--color-dark);
    font-size: 0.95rem;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    user-select: none;
    transition: var(--transition);
}
.faq-item summary::after {
    content: '+';
    font-size: 1.3rem;
    color: var(--color-teal);
    font-weight: 400;
    transition: var(--transition);
    flex-shrink: 0;
    margin-left: 10px;
}
.faq-item[open] summary::after {
    content: '-';
}
.faq-item[open] summary {
    color: var(--color-teal);
    background: var(--color-light);
}
.faq-item .faq-answer {
    padding: 0 18px 16px;
    font-size: 0.88rem;
    color: #5a656b;
    line-height: 1.6;
}

/* ========== 平台优势 ========== */
.advantage-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 14px;
}
.advantage-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
    background: var(--color-light);
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    transition: var(--transition);
}
.advantage-item:hover {
    border-color: var(--color-teal);
    background: #e6faf5;
}
.advantage-icon {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--color-teal);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: #fff;
    font-weight: 700;
    font-size: 1rem;
}
.advantage-content h4 {
    font-size: 0.95rem;
    color: var(--color-dark);
    margin-bottom: 2px;
}
.advantage-content p {
    font-size: 0.78rem;
    color: #7d8a90;
    line-height: 1.4;
}

/* ========== 平台标签 ========== */
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}
.tag-cloud .tag-item {
    padding: 9px 18px;
    background: var(--color-light);
    border: 1.5px solid var(--color-mint);
    border-radius: 22px;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--color-dark);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}
.tag-cloud .tag-item:hover {
    background: var(--color-teal);
    color: #fff;
    border-color: var(--color-teal);
    transform: translateY(-2px);
}

/* ========== APP下载 ========== */
.download-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
}
.download-card {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 16px;
    background: var(--color-light);
    border-radius: var(--radius-md);
    border: 1.5px solid var(--color-mint);
    text-decoration: none;
    color: var(--color-dark);
    transition: var(--transition);
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
}
.download-card:hover {
    background: var(--color-teal);
    color: #fff;
    border-color: var(--color-teal);
    transform: translateY(-3px);
    box-shadow: 0 8px 22px rgba(112, 172, 177, 0.4);
}
.download-card .app-icon {
    width: 36px;
    height: 36px;
    flex-shrink: 0;
    object-fit: contain;
}

/* ========== 底部导航 ========== */
.bottom-nav {
    width: 100%;
    background: var(--color-dark);
    color: #d5dce0;
    padding: 32px 24px 20px;
    margin-top: 40px;
}
.bottom-nav-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    justify-content: space-between;
}
.bottom-col h4 {
    color: #fff;
    font-size: 1rem;
    margin-bottom: 12px;
    letter-spacing: 0.5px;
}
.bottom-col a {
    display: block;
    color: #bcc7cc;
    text-decoration: none;
    font-size: 0.85rem;
    padding: 4px 0;
    transition: var(--transition);
}
.bottom-col a:hover {
    color: var(--color-mint);
}
.bottom-bar {
    max-width: var(--max-width);
    margin: 20px auto 0;
    padding-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    text-align: center;
    font-size: 0.78rem;
    color: #99a5ab;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    align-items: center;
}
.bottom-bar a {
    color: var(--color-mint);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}
.bottom-bar a:hover {
    color: #fff;
    text-decoration: underline;
}

/* ========== 响应式设计 ========== */
@media (max-width: 1200px) {
    .comic-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    .download-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    .sidebar-right {
        width: 300px;
    }
    :root {
        --sidebar-width: 300px;
    }
}

@media (max-width: 1024px) {
    .main-container {
        flex-direction: column;
        gap: 20px;
    }
    .sidebar-right {
        width: 100%;
        position: static;
        max-height: none;
        overflow-y: visible;
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    .sidebar-right .section-block {
        break-inside: avoid;
    }
    .sidebar-right .section-block:last-child {
        grid-column: 1 / -1;
    }
    .comic-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .stat-cards {
        grid-template-columns: repeat(3, 1fr);
    }
    .character-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .download-cards {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 768px) {
    .top-nav {
        padding: 0 14px;
        gap: 10px;
    }
    .nav-links {
        display: none;
        position: absolute;
        top: var(--nav-height);
        left: 0;
        width: 100%;
        background: #fff;
        flex-direction: column;
        padding: 16px;
        gap: 4px;
        box-shadow: 0 8px 24px var(--color-shadow);
        border-bottom: 2px solid var(--color-mint);
        z-index: 999;
    }
    .nav-links.active {
        display: flex;
    }
    .nav-links a {
        width: 100%;
        text-align: center;
        padding: 12px;
        border-radius: 8px;
    }
    .menu-toggle {
        display: flex;
    }
    .nav-brand h1 {
        font-size: 1.15rem;
    }
    .btn-nav {
        padding: 8px 14px;
        font-size: 0.8rem;
    }
    .comic-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    .sidebar-right {
        grid-template-columns: 1fr;
    }
    .stat-cards {
        grid-template-columns: repeat(3, 1fr);
        gap: 8px;
    }
    .download-cards {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    .character-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    .advantage-grid {
        grid-template-columns: 1fr;
    }
    .section-block {
        padding: 16px 14px;
    }
    .section-title {
        font-size: 1.15rem;
    }
    .bottom-nav-inner {
        flex-direction: column;
        gap: 20px;
    }
}

@media (max-width: 480px) {
    .comic-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }
    .comic-card .card-info {
        padding: 8px;
    }
    .comic-card .card-title {
        font-size: 0.82rem;
    }
    .comic-card .card-meta {
        font-size: 0.68rem;
    }
    .download-cards {
        grid-template-columns: 1fr 1fr;
    }
    .stat-cards {
        gap: 6px;
    }
    .stat-card {
        padding: 10px 6px;
    }
    .stat-card .stat-value {
        font-size: 1.2rem;
    }
    .character-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .nav-brand h1 {
        font-size: 1rem;
    }
    .btn-nav {
        padding: 7px 11px;
        font-size: 0.75rem;
        letter-spacing: 0;
    }
}