: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;
}

.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;
}

.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 { 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; 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;
}
.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; }
.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; }

.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; 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;
    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; }
.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; }

.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); }
.character-card .char-avatar img { width: 100%; height: 100%; object-fit: cover; }
.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 { display: flex; gap: 14px; 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 { flex: 1; min-width: 0; }
.comment-body .comment-author { font-weight: 700; font-size: 0.88rem; color: var(--color-text); margin-bottom: 3px; }
.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; }

.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); }
.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); }
.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; 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; }

.total-read-card .total-number { font-size: 2.2rem; font-weight: 800; color: var(--color-primary); 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; }
.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; }
.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; }
.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; } .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; }
}
@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; }
}