:root {
    --color-dark: #34495e;
    --color-darker: #22313f;
    --color-accent: #8dc6ff;
    --color-light: #e4f1fe;
    --color-white: #ffffff;
    --color-text: #2c3e50;
    --color-text-light: #5a6c7d;
    --color-border: #e0e8f0;
    --color-bg: #f5f8fb;
    --color-star: #f0a830;
    --color-green: #3ddc84;
    --shadow-sm: 0 1px 3px rgba(34, 49, 63, 0.06);
    --shadow-md: 0 4px 16px rgba(34, 49, 63, 0.10);
    --shadow-lg: 0 8px 30px rgba(34, 49, 63, 0.12);
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --sidebar-width: 340px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-width: 320px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.top-nav {
    width: 100%;
    background: var(--color-darker);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.25);
    min-height: 60px;
}
.top-nav-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    height: 60px;
    gap: 16px;
}
.site-brand {
    flex-shrink: 0;
}
.site-brand h1 {
    font-size: 1.45rem;
    font-weight: 700;
    color: var(--color-white);
    letter-spacing: 0.5px;
    margin: 0;
    white-space: nowrap;
    cursor: pointer;
    transition: var(--transition);
}
.site-brand h1:hover {
    color: var(--color-accent);
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    justify-content: center;
    list-style: none;
}
.nav-links a {
    color: #c8d6e0;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    padding: 8px 14px;
    border-radius: 20px;
    transition: var(--transition);
    white-space: nowrap;
    letter-spacing: 0.3px;
}
.nav-links a:hover,
.nav-links a:focus-visible {
    color: #fff;
    background: rgba(141, 198, 255, 0.15);
}
.nav-right {
    flex-shrink: 0;
}
.btn-login {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--color-accent);
    color: var(--color-darker);
    border: none;
    padding: 9px 20px;
    border-radius: 22px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.3px;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
}
.btn-login:hover {
    background: #a3d5ff;
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(141, 198, 255, 0.35);
}
.btn-login:active {
    transform: translateY(0);
}
.hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    flex-shrink: 0;
    z-index: 1001;
}
.hamburger span {
    display: block;
    width: 24px;
    height: 2.5px;
    background: #fff;
    margin: 5px 0;
    border-radius: 2px;
    transition: var(--transition);
}
.nav-links-mobile {
    display: none;
    position: absolute;
    top: 60px;
    left: 0;
    width: 100%;
    background: var(--color-darker);
    flex-direction: column;
    padding: 12px 20px;
    gap: 4px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    z-index: 999;
    list-style: none;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}
.nav-links-mobile a {
    display: block;
    color: #c8d6e0;
    text-decoration: none;
    font-size: 0.95rem;
    padding: 11px 16px;
    border-radius: 8px;
    transition: var(--transition);
    font-weight: 500;
}
.nav-links-mobile a:hover {
    background: rgba(141, 198, 255, 0.12);
    color: #fff;
}
.nav-links-mobile.active {
    display: flex;
}

.main-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    gap: 28px;
    padding: 24px 20px 32px;
}
.content-area {
    flex: 1;
    min-width: 0;
}
.sidebar {
    width: var(--sidebar-width);
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.section-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 24px 26px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}
.section-card:hover {
    box-shadow: var(--shadow-md);
}
.section-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-darker);
    margin-bottom: 18px;
    padding-bottom: 12px;
    border-bottom: 3px solid var(--color-accent);
    display: flex;
    align-items: center;
    gap: 10px;
    letter-spacing: 0.4px;
}
.section-title .title-icon {
    width: 8px;
    height: 28px;
    background: var(--color-accent);
    border-radius: 4px;
    flex-shrink: 0;
}
.sidebar .section-title {
    font-size: 1.1rem;
    margin-bottom: 14px;
    padding-bottom: 10px;
}

.comic-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
}
.comic-card {
    background: var(--color-white);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
    cursor: pointer;
    border: 1px solid transparent;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
}
.comic-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
}
.comic-card-img {
    width: 100%;
    aspect-ratio: 3 / 4;
    overflow: hidden;
    background: #eef2f6;
    position: relative;
}
.comic-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
}
.comic-card:hover .comic-card-img img {
    transform: scale(1.06);
}
.comic-card-badge {
    position: absolute;
    top: 8px;
    left: 8px;
    background: var(--color-darker);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 12px;
    z-index: 2;
    letter-spacing: 0.3px;
}
.comic-card-info {
    padding: 12px 14px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.comic-card-info h3 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-darker);
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.comic-card-info .meta {
    font-size: 0.73rem;
    color: var(--color-text-light);
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    line-height: 1.4;
}
.comic-card-info .meta span {
    background: var(--color-light);
    padding: 2px 8px;
    border-radius: 10px;
    white-space: nowrap;
}
.comic-card-info .type-tag {
    background: #e8f4ff;
    color: #2c6faa;
    font-weight: 500;
}

.featured-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}
.featured-card {
    background: var(--color-white);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
    cursor: pointer;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
}
.featured-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
}
.featured-card-img {
    width: 100%;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: #eef2f6;
}
.featured-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
}
.featured-card:hover .featured-card-img img {
    transform: scale(1.05);
}
.featured-card-info {
    padding: 14px 16px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.featured-card-info h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-darker);
}
.featured-card-info .desc {
    font-size: 0.78rem;
    color: var(--color-text-light);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.comic-detail-block {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}
.comic-detail-poster {
    width: 200px;
    flex-shrink: 0;
    aspect-ratio: 3/4;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    background: #eef2f6;
}
.comic-detail-poster img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.comic-detail-text {
    flex: 1;
}
.comic-detail-text h3 {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--color-darker);
    margin-bottom: 8px;
}
.comic-detail-text .detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 10px;
    font-size: 0.85rem;
    color: var(--color-text-light);
}
.comic-detail-text .detail-meta span {
    background: var(--color-light);
    padding: 4px 12px;
    border-radius: 14px;
    font-weight: 500;
}
.comic-detail-text .detail-desc {
    font-size: 0.9rem;
    color: var(--color-text);
    line-height: 1.7;
}

.character-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 14px;
}
.character-card {
    text-align: center;
    background: var(--color-white);
    border-radius: var(--radius);
    padding: 16px 10px;
    border: 1px solid var(--color-border);
    transition: var(--transition);
    cursor: pointer;
}
.character-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-accent);
    transform: translateY(-3px);
}
.character-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto 10px;
    background: #eef2f6;
    box-shadow: var(--shadow-sm);
}
.character-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.character-card h4 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-darker);
    margin-bottom: 4px;
}
.character-card .role-tag {
    font-size: 0.72rem;
    color: var(--color-accent);
    font-weight: 500;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}
.advantage-item {
    text-align: center;
    padding: 20px 14px;
    background: var(--color-light);
    border-radius: var(--radius);
    transition: var(--transition);
}
.advantage-item:hover {
    background: #d6e9fc;
    transform: translateY(-2px);
}
.advantage-item .adv-icon-circle {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--color-accent);
    margin: 0 auto 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: var(--color-darker);
    font-weight: 700;
}
.advantage-item h4 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-darker);
    margin-bottom: 4px;
}
.advantage-item p {
    font-size: 0.76rem;
    color: var(--color-text-light);
    line-height: 1.4;
}

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}
.tag-cloud a {
    display: inline-block;
    padding: 8px 18px;
    background: var(--color-light);
    color: var(--color-dark);
    border-radius: 20px;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    transition: var(--transition);
    border: 1px solid transparent;
    letter-spacing: 0.3px;
}
.tag-cloud a:hover {
    background: var(--color-accent);
    color: var(--color-darker);
    border-color: #6fb8f0;
    box-shadow: var(--shadow-sm);
}

.faq-list {
    list-style: none;
}
.faq-list li {
    border-bottom: 1px solid var(--color-border);
    padding: 14px 0;
    cursor: pointer;
    transition: var(--transition);
}
.faq-list li:last-child {
    border-bottom: none;
}
.faq-list li h4 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-darker);
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.faq-list li h4 .q-marker {
    color: var(--color-accent);
    font-weight: 700;
    font-size: 1.1rem;
    flex-shrink: 0;
}
.faq-list li p {
    font-size: 0.82rem;
    color: var(--color-text-light);
    margin-left: 26px;
    line-height: 1.5;
}
.faq-list li:hover {
    background: #fafcfd;
    padding-left: 8px;
}

.app-download-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
}
.app-download-card {
    text-align: center;
    padding: 20px 14px;
    background: var(--color-light);
    border-radius: var(--radius);
    transition: var(--transition);
    cursor: pointer;
    border: 1px solid transparent;
    text-decoration: none;
    display: block;
    color: inherit;
}
.app-download-card:hover {
    background: #d6e9fc;
    border-color: var(--color-accent);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}
.app-download-card .app-icon-wrap {
    width: 56px;
    height: 56px;
    margin: 0 auto 10px;
    background: #fff;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
}
.app-download-card .app-icon-wrap img {
    width: 32px;
    height: 32px;
    object-fit: contain;
}
.app-download-card h4 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-darker);
    margin-bottom: 2px;
}
.app-download-card .version {
    font-size: 0.7rem;
    color: var(--color-text-light);
}

.sidebar .section-card {
    padding: 18px 16px;
}
.rank-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.rank-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    border-radius: 8px;
    transition: var(--transition);
    cursor: pointer;
    border: 1px solid transparent;
    background: #fafcfd;
}
.rank-list li:hover {
    background: #f0f6fb;
    border-color: #dce8f2;
}
.rank-num {
    font-weight: 700;
    font-size: 1rem;
    color: var(--color-dark);
    width: 26px;
    text-align: center;
    flex-shrink: 0;
}
.rank-list li:nth-child(1) .rank-num {
    color: #e74c3c;
    font-size: 1.15rem;
}
.rank-list li:nth-child(2) .rank-num {
    color: #e67e22;
}
.rank-list li:nth-child(3) .rank-num {
    color: #f0a830;
}
.rank-thumb {
    width: 44px;
    height: 58px;
    border-radius: 5px;
    overflow: hidden;
    flex-shrink: 0;
    background: #eef2f6;
}
.rank-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.rank-info {
    flex: 1;
    min-width: 0;
}
.rank-info .rank-title {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--color-darker);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.rank-info .rank-sub {
    font-size: 0.7rem;
    color: var(--color-text-light);
}
.rank-change {
    font-size: 0.75rem;
    font-weight: 600;
    flex-shrink: 0;
}
.rank-up {
    color: #e74c3c;
}
.rank-down {
    color: #27ae60;
}

.total-read-card {
    text-align: center;
    background: linear-gradient(135deg, #f8fbff 0%, #eaf4fd 100%);
    border: 2px solid #d0e4f5;
}
.total-read-num {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--color-darker);
    letter-spacing: 1px;
}
.total-read-label {
    font-size: 0.8rem;
    color: var(--color-text-light);
    margin-top: 4px;
}
.total-read-update {
    font-size: 0.7rem;
    color: #999;
    margin-top: 6px;
}

.stats-grid-sidebar {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    text-align: center;
}
.stat-item-side {
    background: var(--color-light);
    border-radius: var(--radius-sm);
    padding: 14px 8px;
}
.stat-item-side .stat-num {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-darker);
}
.stat-item-side .stat-label {
    font-size: 0.68rem;
    color: var(--color-text-light);
    margin-top: 2px;
}

.comment-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-height: 500px;
    overflow-y: auto;
    padding-right: 4px;
}
.comment-list::-webkit-scrollbar {
    width: 4px;
}
.comment-list::-webkit-scrollbar-thumb {
    background: #d0d8e0;
    border-radius: 4px;
}
.comment-list li {
    padding: 10px 12px;
    background: #fafcfd;
    border-radius: 8px;
    border-left: 3px solid var(--color-accent);
    font-size: 0.78rem;
    color: var(--color-text);
    line-height: 1.5;
    transition: var(--transition);
}
.comment-list li:hover {
    background: #f0f6fb;
}
.comment-list li .comment-user {
    font-weight: 600;
    font-size: 0.75rem;
    color: var(--color-dark);
    margin-bottom: 3px;
}
.comment-list li .comment-time {
    font-size: 0.65rem;
    color: #aaa;
    float: right;
}

.footer-nav {
    width: 100%;
    background: var(--color-darker);
    color: #b0bec5;
    padding: 32px 20px 20px;
    margin-top: 20px;
}
.footer-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 24px;
}
.footer-col h4 {
    color: #fff;
    font-size: 0.95rem;
    margin-bottom: 10px;
    font-weight: 600;
    letter-spacing: 0.3px;
}
.footer-col a {
    display: block;
    color: #8a9ba8;
    text-decoration: none;
    font-size: 0.8rem;
    padding: 3px 0;
    transition: var(--transition);
}
.footer-col a:hover {
    color: var(--color-accent);
}
.footer-bottom {
    max-width: 1400px;
    margin: 20px auto 0;
    padding-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    font-size: 0.75rem;
    color: #6a7d8a;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
}
.footer-bottom a {
    color: #8a9ba8;
    text-decoration: none;
    transition: var(--transition);
    font-weight: 500;
}
.footer-bottom a:hover {
    color: var(--color-accent);
}

@media (max-width: 1200px) {
    .comic-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    .character-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    .sidebar {
        width: 300px;
    }
    .app-download-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 1024px) {
    .comic-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .featured-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .character-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .main-container {
        flex-direction: column;
        gap: 20px;
    }
    .sidebar {
        width: 100%;
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    .sidebar .section-card {
        break-inside: avoid;
    }
    .sidebar .comment-section-card {
        grid-column: 1 / -1;
    }
    .nav-links {
        display: none;
    }
    .hamburger {
        display: block;
    }
    .comic-detail-block {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    .comic-detail-poster {
        width: 160px;
    }
}
@media (max-width: 768px) {
    .comic-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    .featured-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    .character-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    .advantages-grid {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }
    .app-download-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    .sidebar {
        grid-template-columns: 1fr;
    }
    .stats-grid-sidebar {
        grid-template-columns: repeat(3, 1fr);
        gap: 6px;
    }
    .section-card {
        padding: 16px 12px;
    }
    .section-title {
        font-size: 1.1rem;
    }
    .top-nav-inner {
        padding: 0 12px;
        gap: 8px;
    }
    .site-brand h1 {
        font-size: 1.2rem;
    }
    .btn-login {
        padding: 7px 14px;
        font-size: 0.8rem;
    }
    .comic-detail-poster {
        width: 140px;
    }
    .character-avatar {
        width: 60px;
        height: 60px;
    }
    .total-read-num {
        font-size: 1.6rem;
    }
}
@media (max-width: 480px) {
    .comic-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }
    .comic-card-info h3 {
        font-size: 0.8rem;
    }
    .comic-card-info .meta {
        font-size: 0.65rem;
    }
    .comic-card-info {
        padding: 8px 10px;
    }
    .character-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .app-download-grid {
        grid-template-columns: 1fr 1fr;
    }
    .advantages-grid {
        grid-template-columns: 1fr 1fr;
    }
    .footer-inner {
        flex-direction: column;
        gap: 16px;
    }
}