:root {
    --bg: #eeeeee;
    --accent: #00adb5;
    --text-dark: #3a4750;
    --nav-bg: #303841;
    --white: #ffffff;
    --card-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    --border-radius: 10px;
    --transition: 0.3s ease;
    --text-light: #6b7b8a;
    --star-color: #f5a623;
    --tag-bg: #e8f7f8;
    --danger: #e74c3c;
    --sidebar-width: 340px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 70px; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
    background-color: var(--bg); color: var(--text-dark); line-height: 1.6; min-width: 320px;
    -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
}

.top-nav { width: 100%; background: var(--nav-bg); position: sticky; top: 0; z-index: 1000; box-shadow: 0 2px 16px rgba(0,0,0,0.18); }
.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; }
.nav-brand h1 { font-size: 1.6rem; font-weight: 700; color: #ffffff; letter-spacing: 1px; white-space: nowrap; margin: 0; }
.nav-brand h1 span { color: var(--accent); }
.nav-links { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; list-style: none; }
.nav-links a { color: #d0d8dd; text-decoration: none; font-size: 0.9rem; padding: 7px 13px; border-radius: 20px; transition: var(--transition); white-space: nowrap; font-weight: 500; letter-spacing: 0.3px; }
.nav-links a:hover, .nav-links a:focus { color: #fff; background: rgba(255,255,255,0.1); outline: none; }
.nav-cta { background: var(--accent) !important; color: #fff !important; font-weight: 700 !important; padding: 9px 20px !important; border-radius: 24px !important; letter-spacing: 0.5px !important; transition: all 0.3s ease !important; box-shadow: 0 3px 10px rgba(0,173,181,0.35); }
.nav-cta:hover { background: #009ba3 !important; box-shadow: 0 5px 18px rgba(0,173,181,0.5) !important; transform: translateY(-1px); }
.nav-login { color: #fff !important; border: 1.5px solid rgba(255,255,255,0.4) !important; padding: 7px 16px !important; border-radius: 24px !important; font-weight: 500 !important; }
.nav-login:hover { border-color: #fff !important; background: rgba(255,255,255,0.12) !important; }
.mobile-menu-toggle { display: none; background: none; border: none; cursor: pointer; padding: 6px; flex-direction: column; gap: 5px; z-index: 1001; }
.mobile-menu-toggle span { display: block; width: 26px; height: 2.5px; background: #fff; border-radius: 3px; transition: var(--transition); }
.mobile-menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.mobile-menu-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

.main-wrapper { max-width: 1400px; margin: 0 auto; display: flex; gap: 24px; padding: 24px; align-items: flex-start; }
.main-content { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 24px; }
.sidebar { width: var(--sidebar-width); flex-shrink: 0; display: flex; flex-direction: column; gap: 20px; position: sticky; top: 84px; max-height: calc(100vh - 100px); overflow-y: auto; }
.sidebar::-webkit-scrollbar { width: 4px; } .sidebar::-webkit-scrollbar-thumb { background: #c5cdd3; border-radius: 4px; }

.section-card { background: var(--white); border-radius: var(--border-radius); padding: 22px 24px; box-shadow: var(--card-shadow); transition: var(--transition); }
.section-card:hover { box-shadow: 0 6px 20px rgba(0,0,0,0.11); }
.section-title { font-size: 1.25rem; font-weight: 700; color: var(--text-dark); margin-bottom: 16px; padding-left: 14px; border-left: 4px solid var(--accent); letter-spacing: 0.5px; display: flex; align-items: center; gap: 8px; }
.section-title .title-icon { width: 22px; height: 22px; flex-shrink: 0; }
.sidebar .section-title { font-size: 1.05rem; margin-bottom: 12px; padding-left: 10px; border-left-width: 3px; }

.comic-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.comic-card { background: var(--white); border-radius: var(--border-radius); overflow: hidden; box-shadow: 0 1px 6px rgba(0,0,0,0.06); transition: var(--transition); cursor: pointer; display: flex; flex-direction: column; }
.comic-card:hover { transform: translateY(-4px); box-shadow: 0 8px 22px rgba(0,0,0,0.13); }
.comic-card-img-wrap { position: relative; width: 100%; padding-top: 135%; overflow: hidden; background: #e0e5e9; }
.comic-card-img-wrap img { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.comic-card:hover .comic-card-img-wrap img { transform: scale(1.06); }
.comic-card-badge { position: absolute; top: 8px; left: 8px; background: var(--accent); color: #fff; font-size: 0.7rem; font-weight: 700; padding: 3px 9px; border-radius: 12px; z-index: 2; letter-spacing: 0.5px; }
.comic-card-info { padding: 10px 12px 12px; flex: 1; display: flex; flex-direction: column; gap: 4px; }
.comic-card-info .comic-title { font-weight: 700; font-size: 0.9rem; color: var(--text-dark); line-height: 1.3; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.comic-card-info .comic-meta { font-size: 0.7rem; color: var(--text-light); display: flex; flex-wrap: wrap; gap: 4px 8px; line-height: 1.5; }
.comic-card-info .comic-meta span { background: #f0f3f5; padding: 2px 7px; border-radius: 10px; white-space: nowrap; font-size: 0.68rem; }
.comic-type-tag { display: inline-block; background: var(--tag-bg); color: #00858c; font-size: 0.68rem; padding: 2px 8px; border-radius: 10px; font-weight: 500; }

.featured-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.featured-card { background: var(--white); border-radius: var(--border-radius); overflow: hidden; box-shadow: 0 1px 6px rgba(0,0,0,0.06); transition: var(--transition); cursor: pointer; display: flex; flex-direction: column; position: relative; }
.featured-card:hover { transform: translateY(-3px); box-shadow: 0 8px 20px rgba(0,0,0,0.12); }
.featured-card-img-wrap { position: relative; width: 100%; padding-top: 125%; overflow: hidden; background: #dce3e8; }
.featured-card-img-wrap img { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.featured-card:hover .featured-card-img-wrap img { transform: scale(1.05); }
.featured-ribbon { position: absolute; top: 12px; right: -28px; background: #e74c3c; color: #fff; font-size: 0.7rem; font-weight: 700; padding: 4px 30px; transform: rotate(45deg); z-index: 2; letter-spacing: 1px; }
.featured-card-info { padding: 10px 14px 14px; flex: 1; }
.featured-card-info .ft-title { font-weight: 700; font-size: 0.95rem; color: var(--text-dark); }
.featured-card-info .ft-desc { font-size: 0.72rem; color: var(--text-light); margin-top: 3px; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

.rank-list { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.rank-list li { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: 8px; transition: var(--transition); cursor: pointer; background: #fafbfc; }
.rank-list li:hover { background: #eef7f8; }
.rank-num { font-weight: 800; font-size: 1.1rem; color: #b0bcc4; width: 26px; text-align: center; flex-shrink: 0; }
.rank-list li:nth-child(1) .rank-num { color: #e74c3c; }
.rank-list li:nth-child(2) .rank-num { color: #f5a623; }
.rank-list li:nth-child(3) .rank-num { color: #f7b731; }
.rank-cover { width: 44px; height: 58px; border-radius: 5px; object-fit: cover; flex-shrink: 0; background: #e0e5e9; }
.rank-info { flex: 1; min-width: 0; }
.rank-info .rk-title { font-weight: 600; font-size: 0.82rem; color: var(--text-dark); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.rank-info .rk-meta { font-size: 0.68rem; color: var(--text-light); }
.rank-change { font-size: 0.72rem; font-weight: 700; flex-shrink: 0; }
.rank-up { color: #e74c3c; } .rank-down { color: #27ae60; } .rank-stable { color: #888; }

.stats-row { display: flex; gap: 10px; flex-wrap: wrap; }
.stat-item { flex: 1; min-width: 60px; text-align: center; background: #f8f9fa; border-radius: 8px; padding: 12px 8px; transition: var(--transition); }
.stat-item:hover { background: #eef7f8; }
.stat-num { font-size: 1.5rem; font-weight: 800; color: var(--accent); letter-spacing: 0.5px; }
.stat-label { font-size: 0.7rem; color: var(--text-light); margin-top: 2px; }
.update-time { font-size: 0.68rem; color: #999; text-align: center; margin-top: 6px; }

.comment-list { display: flex; flex-direction: column; gap: 14px; }
.comment-item { padding: 14px 16px; background: #fafbfc; border-radius: 10px; transition: var(--transition); }
.comment-item:hover { background: #f0f5f6; }
.comment-body { flex: 1; min-width: 0; }
.comment-user { font-weight: 600; font-size: 0.85rem; color: var(--text-dark); }
.comment-time { font-size: 0.7rem; color: #aaa; margin-left: 8px; }
.comment-text { font-size: 0.82rem; color: #4a5a65; line-height: 1.55; margin-top: 4px; }

.faq-list details { border-bottom: 1px solid #e8ecef; padding: 12px 0; cursor: pointer; transition: var(--transition); }
.faq-list details summary { font-weight: 600; font-size: 0.9rem; color: var(--text-dark); list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 10px; cursor: pointer; }
.faq-list details summary::-webkit-details-marker { display: none; }
.faq-list details summary::after { content: '+'; font-size: 1.3rem; color: var(--accent); font-weight: 700; transition: var(--transition); flex-shrink: 0; }
.faq-list details[open] summary::after { content: '\2212'; }
.faq-list details .faq-answer { padding: 8px 0 4px; font-size: 0.82rem; color: #5a6b75; line-height: 1.6; }

.advantages-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.advantage-item { text-align: center; padding: 18px 12px; background: #f8f9fa; border-radius: 10px; transition: var(--transition); }
.advantage-item:hover { background: #eef7f8; transform: translateY(-2px); }
.advantage-icon { width: 40px; height: 40px; margin: 0 auto 8px; display: block; }
.advantage-item .adv-title { font-weight: 700; font-size: 0.85rem; color: var(--text-dark); }
.advantage-item .adv-desc { font-size: 0.7rem; color: var(--text-light); margin-top: 3px; }

.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-cloud a { display: inline-block; padding: 6px 15px; background: #eef7f8; color: #00858c; border-radius: 20px; text-decoration: none; font-size: 0.8rem; font-weight: 500; transition: var(--transition); letter-spacing: 0.3px; }
.tag-cloud a:hover { background: var(--accent); color: #fff; }

.download-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.download-card { text-align: center; padding: 18px 10px; background: #f8f9fa; border-radius: 10px; transition: var(--transition); text-decoration: none; color: var(--text-dark); display: flex; flex-direction: column; align-items: center; gap: 8px; border: 2px solid transparent; }
.download-card:hover { border-color: var(--accent); background: #fff; box-shadow: 0 4px 14px rgba(0,173,181,0.15); transform: translateY(-2px); }
.download-card .app-icon { width: 36px; height: 36px; flex-shrink: 0; }
.download-card .dl-platform { font-weight: 700; font-size: 0.85rem; }
.download-card .dl-version { font-size: 0.68rem; color: var(--text-light); }

.bottom-nav { width: 100%; background: var(--nav-bg); color: #c5cdd3; padding: 28px 24px 18px; margin-top: 10px; }
.bottom-nav-inner { max-width: 1400px; margin: 0 auto; display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 16px; }
.bottom-nav a { color: #d0d8dd; text-decoration: none; font-size: 0.82rem; transition: var(--transition); padding: 4px 8px; border-radius: 4px; }
.bottom-nav a:hover { color: #fff; text-decoration: underline; }
.bottom-nav .brand-links { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.bottom-nav .brand-links a { background: rgba(255,255,255,0.06); padding: 6px 14px; border-radius: 16px; font-weight: 500; }
.bottom-nav .brand-links a:hover { background: rgba(255,255,255,0.14); text-decoration: none; }
.copyright { font-size: 0.72rem; color: #8899a5; text-align: center; width: 100%; margin-top: 12px; }

@media (max-width: 1200px) { .comic-grid { grid-template-columns: repeat(4, 1fr); gap: 12px; } .featured-grid { grid-template-columns: repeat(3, 1fr); gap: 12px; } .sidebar { width: 280px; } :root { --sidebar-width: 280px; } .advantages-grid { grid-template-columns: repeat(3, 1fr); } .download-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 992px) { .main-wrapper { flex-direction: column; padding: 16px; gap: 20px; } .sidebar { width: 100%; position: static; max-height: none; overflow-y: visible; flex-direction: row; flex-wrap: wrap; gap: 14px; } .sidebar .section-card { flex: 1 1 260px; min-width: 240px; } .comic-grid { grid-template-columns: repeat(3, 1fr); } .featured-grid { grid-template-columns: repeat(2, 1fr); } .advantages-grid { grid-template-columns: repeat(2, 1fr); } .download-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 768px) { .top-nav-inner { padding: 0 14px; height: 52px; } .nav-brand h1 { font-size: 1.3rem; } .nav-links { display: none; position: absolute; top: 52px; left: 0; right: 0; background: var(--nav-bg); flex-direction: column; padding: 12px 16px; gap: 4px; box-shadow: 0 8px 20px rgba(0,0,0,0.3); border-radius: 0 0 10px 10px; } .nav-links.show { display: flex; } .nav-links a { padding: 10px 16px; border-radius: 8px; width: 100%; text-align: center; } .mobile-menu-toggle { display: flex; } .comic-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; } .featured-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; } .advantages-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; } .download-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; } .sidebar { flex-direction: column; } .sidebar .section-card { flex: 1 1 auto; min-width: auto; } .section-card { padding: 16px; } .section-title { font-size: 1.1rem; } .stats-row { gap: 4px; } .stat-num { font-size: 1.2rem; } .main-wrapper { padding: 10px; gap: 14px; } .main-content { gap: 14px; } .bottom-nav-inner { flex-direction: column; text-align: center; } }
@media (max-width: 420px) { .comic-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; } .featured-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; } .comic-card-info { padding: 6px 8px 8px; } .comic-card-info .comic-title { font-size: 0.78rem; } .comic-card-info .comic-meta { font-size: 0.64rem; } .advantages-grid { grid-template-columns: repeat(2, 1fr); gap: 6px; } .download-grid { grid-template-columns: repeat(2, 1fr); gap: 6px; } .rank-cover { width: 36px; height: 48px; } .rank-list li { gap: 6px; padding: 6px 8px; } }