:root {
    --color-primary: #2f9296;
    --color-primary-light: #46b7b9;
    --color-accent: #87dfd6;
    --color-bg-light: #dff5f2;
    --color-white: #ffffff;
    --color-text: #2c3e50;
    --color-text-light: #5a6c7d;
    --color-border: #e8f4f3;
    --color-shadow: rgba(47, 146, 150, 0.10);
    --color-shadow-hover: rgba(47, 146, 150, 0.22);
    --color-card-hover: #f6fcfb;
    --color-badge: #46b7b9;
    --color-star: #f0a830;
    --color-danger: #e05555;
    --sidebar-width: 330px;
    --nav-height: 64px;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
    background-color: #f8faf9;
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ========== 顶部导航 ========== */
.top-nav {
    width: 100%;
    height: var(--nav-height);
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 1px 8px var(--color-shadow);
    display: flex;
    align-items: center;
    padding: 0 24px;
    gap: 20px;
}

.top-nav .brand-name {
    flex-shrink: 0;
    margin-right: auto;
}
.top-nav .brand-name h1 {
    font-size: 1.55rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: 0.5px;
    cursor: pointer;
    white-space: nowrap;
    margin: 0;
    line-height: 1;
}
.top-nav .brand-name h1 span {
    color: var(--color-primary-light);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
    flex-wrap: wrap;
    justify-content: flex-end;
    flex-shrink: 1;
}
.nav-links li a {
    display: inline-block;
    padding: 8px 14px;
    text-decoration: none;
    color: var(--color-text);
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: 20px;
    transition: var(--transition);
    white-space: nowrap;
}
.nav-links li a:hover,
.nav-links li a:focus-visible {
    background: var(--color-bg-light);
    color: var(--color-primary);
}
.nav-cta {
    flex-shrink: 0;
    margin-left: 4px;
}
.nav-cta .btn-read-now {
    display: inline-block;
    padding: 10px 22px;
    background: var(--color-primary);
    color: #fff !important;
    border-radius: 24px;
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    transition: var(--transition);
    white-space: nowrap;
    letter-spacing: 0.3px;
    box-shadow: 0 3px 12px rgba(47, 146, 150, 0.3);
}
.nav-cta .btn-read-now:hover {
    background: var(--color-primary-light);
    box-shadow: 0 6px 20px rgba(47, 146, 150, 0.4);
    transform: translateY(-1px);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    flex-shrink: 0;
}
.nav-toggle span {
    display: block;
    width: 24px;
    height: 2.5px;
    background: var(--color-primary);
    margin: 5px 0;
    border-radius: 2px;
    transition: var(--transition);
}

.main-wrapper {
    display: flex;
    gap: 28px;
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
    padding: 24px 24px 40px;
    flex: 1;
}
.main-content {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 36px;
}
.sidebar {
    width: var(--sidebar-width);
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: 22px;
    position: sticky;
    top: calc(var(--nav-height) + 24px);
    align-self: flex-start;
    max-height: calc(100vh - var(--nav-height) - 48px);
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--color-accent) transparent;
    padding-right: 4px;
}
.sidebar::-webkit-scrollbar {
    width: 5px;
}
.sidebar::-webkit-scrollbar-track {
    background: transparent;
}
.sidebar::-webkit-scrollbar-thumb {
    background: var(--color-accent);
    border-radius: 10px;
}

.section-block {
    background: var(--color-white);
    border-radius: var(--border-radius);
    padding: 24px 22px;
    box-shadow: 0 2px 12px var(--color-shadow);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}
.section-block:hover {
    box-shadow: 0 4px 20px var(--color-shadow-hover);
}
.section-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 18px;
    padding-bottom: 12px;
    border-bottom: 3px solid var(--color-accent);
    display: flex;
    align-items: center;
    gap: 10px;
    letter-spacing: 0.3px;
}
.section-title::before {
    content: '';
    display: inline-block;
    width: 5px;
    height: 22px;
    background: var(--color-primary-light);
    border-radius: 3px;
    flex-shrink: 0;
}

.hot-comics-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
}
.comic-card {
    background: var(--color-white);
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    border: 1px solid var(--color-border);
    transition: var(--transition);
    cursor: pointer;
    display: flex;
    flex-direction: column;
}
.comic-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 28px var(--color-shadow-hover);
    border-color: var(--color-accent);
}
.comic-card .card-img-wrap {
    position: relative;
    width: 100%;
    aspect-ratio: 3 / 4;
    overflow: hidden;
    background: #eef7f6;
}
.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: 8px;
    left: 8px;
    background: var(--color-badge);
    color: #fff;
    font-size: 0.72rem;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 12px;
    z-index: 2;
    letter-spacing: 0.3px;
}
.comic-card .card-body {
    padding: 12px 14px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.comic-card .card-body h3 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--color-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin: 0;
}
.comic-card .card-meta {
    font-size: 0.73rem;
    color: var(--color-text-light);
    display: flex;
    flex-wrap: wrap;
    gap: 2px 8px;
    line-height: 1.5;
}
.comic-card .card-meta span {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}
.comic-card .card-meta .meta-label {
    color: #999;
    font-size: 0.68rem;
}
.site-tag {
    display: inline-block;
    background: var(--color-primary);
    color: #fff;
    font-size: 0.7rem;
    padding: 2px 8px;
    border-radius: 10px;
    margin-top: 4px;
    align-self: flex-start;
}

.featured-comics-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
}
.featured-comic-item {
    position: relative;
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    aspect-ratio: 3 / 4;
    cursor: pointer;
    background: #eef7f6;
    transition: var(--transition);
}
.featured-comic-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
}
.featured-comic-item:hover img {
    transform: scale(1.08);
}
.featured-comic-item .featured-label {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.75));
    color: #fff;
    padding: 28px 12px 10px;
    font-weight: 600;
    font-size: 0.85rem;
    z-index: 2;
    letter-spacing: 0.3px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.comic-detail-intro {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}
.comic-detail-intro .detail-cover {
    flex-shrink: 0;
    width: 200px;
    aspect-ratio: 3 / 4;
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    background: #eef7f6;
    box-shadow: 0 4px 16px var(--color-shadow);
}
.comic-detail-intro .detail-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.comic-detail-intro .detail-info {
    flex: 1;
    min-width: 260px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.comic-detail-intro .detail-info h2 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-primary);
    margin: 0;
}
.comic-detail-intro .detail-info .detail-meta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 18px;
    font-size: 0.88rem;
    color: var(--color-text-light);
}
.comic-detail-intro .detail-info .detail-desc {
    font-size: 0.9rem;
    color: #555;
    line-height: 1.7;
    flex: 1;
}
.detail-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}
.detail-tags .tag {
    display: inline-block;
    padding: 5px 13px;
    background: var(--color-bg-light);
    color: var(--color-primary);
    border-radius: 16px;
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.2px;
}

.characters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 16px;
}
.character-card {
    text-align: center;
    background: var(--color-white);
    border-radius: var(--border-radius-sm);
    padding: 16px 10px;
    border: 1px solid var(--color-border);
    transition: var(--transition);
    cursor: pointer;
}
.character-card:hover {
    box-shadow: 0 6px 18px var(--color-shadow-hover);
    border-color: var(--color-accent);
    transform: translateY(-2px);
}
.character-card .char-avatar {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto 10px;
    background: #eef7f6;
    border: 3px solid var(--color-accent);
    transition: var(--transition);
}
.character-card:hover .char-avatar {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 6px rgba(47, 146, 150, 0.08);
}
.character-card .char-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.character-card h4 {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--color-text);
    margin: 0 0 4px;
}
.character-card .char-role {
    font-size: 0.73rem;
    color: var(--color-primary-light);
    font-weight: 500;
}

.comments-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.comment-item {
    padding: 16px;
    background: #fafdfc;
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}
.comment-item:hover {
    background: #f6fcfb;
    border-color: var(--color-accent);
}
.comment-body .comment-author {
    font-weight: 700;
    font-size: 0.88rem;
    color: var(--color-text);
    margin-bottom: 3px;
    display: block;
}
.comment-body .comment-time {
    font-size: 0.7rem;
    color: #aaa;
    margin-left: 8px;
    font-weight: 400;
}
.comment-body .comment-text {
    font-size: 0.85rem;
    color: #555;
    line-height: 1.65;
    margin-top: 6px;
}

.sidebar .sidebar-card {
    background: var(--color-white);
    border-radius: var(--border-radius);
    padding: 18px 16px;
    border: 1px solid var(--color-border);
    box-shadow: 0 2px 10px var(--color-shadow);
    transition: var(--transition);
}
.sidebar .sidebar-card:hover {
    box-shadow: 0 4px 18px var(--color-shadow-hover);
}
.sidebar .sidebar-card h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 14px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--color-accent);
    letter-spacing: 0.3px;
}
.sidebar .rank-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.sidebar .rank-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition);
    background: #fafdfc;
}
.sidebar .rank-list li:hover {
    background: var(--color-bg-light);
    transform: translateX(3px);
}
.sidebar .rank-list .rank-num {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.8rem;
    flex-shrink: 0;
    color: #fff;
    background: #bbb;
}
.sidebar .rank-list li:nth-child(1) .rank-num { background: #e05555; }
.sidebar .rank-list li:nth-child(2) .rank-num { background: #f0a830; }
.sidebar .rank-list li:nth-child(3) .rank-num { background: #46b7b9; }
.sidebar .rank-list .rank-info {
    flex: 1;
    min-width: 0;
}
.sidebar .rank-list .rank-info .rank-title {
    font-size: 0.84rem;
    font-weight: 600;
    color: var(--color-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.sidebar .rank-list .rank-info .rank-sub {
    font-size: 0.7rem;
    color: #999;
}
.sidebar .rank-list .rank-cover {
    width: 38px;
    height: 50px;
    border-radius: 4px;
    overflow: hidden;
    flex-shrink: 0;
    background: #eef7f6;
}
.sidebar .rank-list .rank-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.total-read-card .total-number {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--color-primary);
    letter-spacing: 1px;
    text-align: center;
    margin: 8px 0;
}
.total-read-card .update-time {
    text-align: center;
    font-size: 0.73rem;
    color: #999;
}

.stats-row {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}
.stat-item {
    flex: 1;
    min-width: 70px;
    text-align: center;
    background: var(--color-bg-light);
    border-radius: var(--border-radius-sm);
    padding: 14px 8px;
    transition: var(--transition);
}
.stat-item:hover { background: #e0f7f4; }
.stat-item .stat-value {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-primary);
}
.stat-item .stat-label {
    font-size: 0.7rem;
    color: #888;
    margin-top: 2px;
}

.app-download-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
}
.app-download-card {
    text-align: center;
    padding: 22px 14px;
    background: var(--color-bg-light);
    border-radius: var(--border-radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    color: var(--color-text);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}
.app-download-card:hover {
    border-color: var(--color-primary-light);
    background: #e8f8f6;
    transform: translateY(-3px);
    box-shadow: 0 8px 22px var(--color-shadow-hover);
}
.app-download-card .app-icon-wrap {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.app-download-card .app-icon-wrap img {
    width: 28px;
    height: 28px;
    object-fit: contain;
    display: block;
}
.app-download-card .app-name { font-weight: 700; font-size: 0.9rem; }
.app-download-card .app-version { font-size: 0.7rem; color: #999; }

.bottom-nav {
    width: 100%;
    background: #1a2e2f;
    color: #ccc;
    padding: 32px 24px 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    justify-content: center;
    align-items: flex-start;
    border-top: 4px solid var(--color-primary);
}
.bottom-nav .footer-col {
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-width: 140px;
}
.bottom-nav .footer-col h4 {
    color: #fff;
    font-size: 0.95rem;
    margin-bottom: 4px;
    font-weight: 600;
}
.bottom-nav .footer-col a {
    color: #aaa;
    text-decoration: none;
    font-size: 0.8rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 5px;
}
.bottom-nav .footer-col a:hover {
    color: var(--color-accent);
    text-decoration: underline;
}
.bottom-nav .footer-col a img {
    width: 18px;
    height: 18px;
    object-fit: contain;
    flex-shrink: 0;
    display: inline-block;
}
.footer-bottom-bar {
    width: 100%;
    text-align: center;
    padding: 14px 24px;
    background: #141f20;
    color: #777;
    font-size: 0.75rem;
}

@media (max-width: 1280px) {
    .hot-comics-grid,
    .featured-comics-grid { grid-template-columns: repeat(4, 1fr); }
    .app-download-grid { grid-template-columns: repeat(2, 1fr); }
    .sidebar { width: 280px; }
}
@media (max-width: 1024px) {
    .main-wrapper { flex-direction: column; gap: 24px; padding: 16px; }
    .sidebar { width: 100%; position: static; max-height: none; flex-direction: row; flex-wrap: wrap; gap: 14px; }
    .sidebar .sidebar-card { flex: 1; min-width: 220px; }
    .hot-comics-grid,
    .featured-comics-grid { grid-template-columns: repeat(3, 1fr); }
    .app-download-grid { grid-template-columns: repeat(4, 1fr); }
    .nav-links { display: none; }
    .nav-toggle { display: block; }
    .top-nav { padding: 0 16px; gap: 10px; }
    .top-nav .brand-name h1 { font-size: 1.3rem; }
    .nav-cta .btn-read-now { padding: 8px 16px; font-size: 0.8rem; }
}
@media (max-width: 768px) {
    .hot-comics-grid,
    .featured-comics-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .app-download-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .characters-grid { grid-template-columns: repeat(3, 1fr); gap: 10px; }
    .comic-detail-intro { flex-direction: column; align-items: center; text-align: center; }
    .comic-detail-intro .detail-cover { width: 150px; }
    .sidebar { flex-direction: column; }
    .sidebar .sidebar-card { min-width: auto; }
    .section-block { padding: 16px 12px; }
    .top-nav .brand-name h1 { font-size: 1.15rem; }
    .bottom-nav { flex-direction: column; align-items: center; text-align: center; gap: 20px; }
}
@media (max-width: 480px) {
    .hot-comics-grid,
    .featured-comics-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
    .characters-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
    .app-download-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
    .character-card .char-avatar { width: 60px; height: 60px; }
    .character-card h4 { font-size: 0.78rem; }
    .nav-cta .btn-read-now { padding: 6px 12px; font-size: 0.72rem; border-radius: 18px; }
    .top-nav { padding: 0 10px; gap: 6px; }
}