:root {
    --bg-primary: #eafff7;
    --bg-card: #afffdf;
    --accent: #49beb7;
    --highlight: #fc345c;
    --text-dark: #1a2e2b;
    --text-mid: #3a5550;
    --text-light: #5c7a74;
    --white: #ffffff;
    --shadow-sm: 0 2px 8px rgba(73, 190, 183, 0.12);
    --shadow-md: 0 4px 20px rgba(73, 190, 183, 0.18);
    --shadow-lg: 0 8px 32px rgba(73, 190, 183, 0.22);
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-heading: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
    --font-body: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
}

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

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-dark);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.top-nav {
    width: 100%;
    background: var(--white);
    border-bottom: 2px solid var(--accent);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.top-nav-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    gap: 16px;
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.nav-left .logo-icon {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
    background: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.nav-left .logo-icon svg {
    width: 24px;
    height: 24px;
    fill: #fff;
}

.nav-left h1 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    letter-spacing: 0.5px;
    white-space: nowrap;
    margin: 0;
}

.nav-left h1 span {
    color: var(--highlight);
}

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

.nav-center a {
    text-decoration: none;
    color: var(--text-mid);
    font-size: 0.95rem;
    font-weight: 500;
    padding: 8px 14px;
    border-radius: 20px;
    transition: var(--transition);
    white-space: nowrap;
    position: relative;
}

.nav-center a:hover,
.nav-center a:focus-visible {
    background: var(--bg-card);
    color: #1a3d38;
}
.nav-center a.nav-hot {
    color: var(--highlight);
    font-weight: 600;
}

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

.btn-login {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: 24px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 600;
    transition: var(--transition);
    white-space: nowrap;
    text-decoration: none;
    letter-spacing: 0.3px;
}
.btn-login:hover {
    background: #3aa8a1;
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(73, 190, 183, 0.35);
}
.btn-login:active {
    transform: translateY(0);
    box-shadow: none;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    flex-shrink: 0;
}
.mobile-menu-toggle span {
    display: block;
    width: 26px;
    height: 3px;
    background: var(--text-dark);
    border-radius: 3px;
    margin: 5px 0;
    transition: var(--transition);
}

.main-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 24px;
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 24px;
    min-height: 60vh;
}

.content-left {
    display: flex;
    flex-direction: column;
    gap: 28px;
    min-width: 0;
}

.sidebar-right {
    display: flex;
    flex-direction: column;
    gap: 20px;
    min-width: 0;
}

.section-block {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(73, 190, 183, 0.15);
    transition: var(--transition);
    scroll-margin-top: 80px;
}
.section-block:hover {
    box-shadow: var(--shadow-md);
}

.section-title {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 18px;
    padding-bottom: 12px;
    border-bottom: 3px solid var(--accent);
    display: flex;
    align-items: center;
    gap: 10px;
    letter-spacing: 0.4px;
}
.section-title::before {
    content: '';
    width: 6px;
    height: 26px;
    background: var(--highlight);
    border-radius: 3px;
    flex-shrink: 0;
}

.sidebar-right .section-block {
    padding: 18px 16px;
    border-radius: var(--radius-md);
}
.sidebar-right .section-title {
    font-size: 1.1rem;
    margin-bottom: 12px;
    padding-bottom: 8px;
}
.sidebar-right .section-title::before {
    height: 20px;
    width: 5px;
}

.hot-comics-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
}

.comic-card {
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
    display: flex;
    flex-direction: column;
}
.comic-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent);
}
.comic-card img {
    width: 100%;
    height: 260px;
    object-fit: cover;
    display: block;
    background: #d5f0e8;
}
.comic-card-info {
    padding: 10px 12px 14px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
}
.comic-card-info .comic-title {
    font-weight: 700;
    font-size: 0.95rem;
    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: 0.75rem;
    color: var(--text-light);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.comic-card-info .comic-type-tag {
    display: inline-block;
    font-size: 0.7rem;
    background: var(--accent);
    color: #fff;
    padding: 3px 8px;
    border-radius: 10px;
    align-self: flex-start;
    margin-top: 2px;
    white-space: nowrap;
}

.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: var(--radius-sm);
    background: var(--bg-primary);
    transition: var(--transition);
    cursor: pointer;
    border: 1px solid transparent;
}
.rank-list li:hover {
    background: var(--bg-card);
    border-color: var(--accent);
    transform: translateX(3px);
}
.rank-num {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--accent);
    color: #fff;
    font-weight: 700;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.rank-list li:nth-child(1) .rank-num {
    background: #ff6b35;
}
.rank-list li:nth-child(2) .rank-num {
    background: #ff8c42;
}
.rank-list li:nth-child(3) .rank-num {
    background: #ffa94d;
}
.rank-info {
    flex: 1;
    min-width: 0;
}
.rank-info .rank-title {
    font-weight: 600;
    font-size: 0.88rem;
    color: var(--text-dark);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.rank-info .rank-sub {
    font-size: 0.72rem;
    color: var(--text-light);
}

.stats-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}
.stat-card {
    text-align: center;
    background: var(--bg-primary);
    border-radius: var(--radius-sm);
    padding: 14px 8px;
    border: 1px solid rgba(73, 190, 183, 0.2);
    transition: var(--transition);
}
.stat-card:hover {
    background: var(--bg-card);
    transform: translateY(-2px);
}
.stat-card .stat-num {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--highlight);
    line-height: 1.2;
}
.stat-card .stat-label {
    font-size: 0.72rem;
    color: var(--text-light);
    margin-top: 2px;
}

.comment-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-height: 520px;
    overflow-y: auto;
    padding-right: 4px;
}
.comment-list::-webkit-scrollbar {
    width: 4px;
}
.comment-list::-webkit-scrollbar-thumb {
    background: var(--accent);
    border-radius: 4px;
}
.comment-item {
    background: var(--bg-primary);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
    border-left: 3px solid var(--accent);
    transition: var(--transition);
}
.comment-item:hover {
    background: var(--bg-card);
    border-left-color: var(--highlight);
}
.comment-item .comment-user {
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--text-dark);
    margin-bottom: 4px;
}
.comment-item .comment-text {
    font-size: 0.8rem;
    color: var(--text-mid);
    line-height: 1.5;
}
.comment-item .comment-time {
    font-size: 0.68rem;
    color: var(--text-light);
    margin-top: 4px;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
}
.advantage-card {
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    padding: 18px 14px;
    text-align: center;
    border: 1px solid rgba(73, 190, 183, 0.18);
    transition: var(--transition);
}
.advantage-card:hover {
    background: var(--bg-card);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}
.advantage-card .adv-icon-wrap {
    width: 48px;
    height: 48px;
    margin: 0 auto 10px;
    border-radius: 50%;
    background: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
}
.advantage-card .adv-icon-wrap svg {
    width: 24px;
    height: 24px;
    fill: #fff;
}
.advantage-card h4 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 4px;
}
.advantage-card p {
    font-size: 0.78rem;
    color: var(--text-light);
    line-height: 1.4;
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.faq-item {
    border: 1px solid rgba(73, 190, 183, 0.2);
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: var(--transition);
    background: var(--bg-primary);
}
.faq-item summary {
    padding: 14px 16px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-dark);
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: var(--transition);
    user-select: none;
}
.faq-item summary::-webkit-details-marker {
    display: none;
}
.faq-item summary::after {
    content: '+';
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--accent);
    transition: var(--transition);
    flex-shrink: 0;
    margin-left: 8px;
}
.faq-item[open] summary::after {
    content: '-';
    color: var(--highlight);
}
.faq-item[open] summary {
    background: var(--bg-card);
}
.faq-item .faq-answer {
    padding: 0 16px 14px;
    font-size: 0.85rem;
    color: var(--text-mid);
    line-height: 1.6;
}

.characters-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
}
.character-card {
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    overflow: hidden;
    text-align: center;
    border: 1px solid rgba(73, 190, 183, 0.18);
    transition: var(--transition);
}
.character-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent);
}
.character-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: #d5f0e8;
    display: block;
}
.character-card .char-info {
    padding: 10px 10px 14px;
}
.character-card .char-info h4 {
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--text-dark);
    margin-bottom: 2px;
}
.character-card .char-info span {
    font-size: 0.72rem;
    color: var(--text-light);
}

.comic-detail-showcase {
    display: grid;
    grid-template-columns: 180px 1fr;
    gap: 20px;
    align-items: start;
}
.comic-detail-showcase img {
    width: 180px;
    height: 250px;
    object-fit: cover;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    background: #d5f0e8;
}
.comic-detail-info h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-dark);
}
.comic-detail-info .detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 8px;
}
.comic-detail-info .detail-meta span {
    background: var(--bg-card);
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.78rem;
    color: var(--text-mid);
    white-space: nowrap;
}
.comic-detail-info .detail-desc {
    font-size: 0.88rem;
    color: var(--text-mid);
    line-height: 1.6;
}

.app-download-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
}
.app-download-card {
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    padding: 18px 14px;
    text-align: center;
    border: 2px solid transparent;
    transition: var(--transition);
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}
.app-download-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    background: #fff;
}
.app-download-card .app-icon {
    width: 48px;
    height: 48px;
    object-fit: contain;
    flex-shrink: 0;
}
.app-download-card .app-name {
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--text-dark);
}
.app-download-card .app-ver {
    font-size: 0.7rem;
    color: var(--text-light);
}

.footer-nav {
    width: 100%;
    background: #1a2e2b;
    color: #c8ddd8;
    padding: 40px 24px 24px;
    margin-top: 40px;
}
.footer-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}
.footer-col h4 {
    color: #fff;
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: 0.4px;
}
.footer-col a {
    display: block;
    color: #9bb8b1;
    text-decoration: none;
    font-size: 0.85rem;
    padding: 4px 0;
    transition: var(--transition);
}
.footer-col a:hover {
    color: #fff;
    padding-left: 4px;
}
.footer-bottom {
    max-width: 1400px;
    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: #7a9e95;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    align-items: center;
}
.footer-bottom a {
    color: #9bb8b1;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}
.footer-bottom a:hover {
    color: #fff;
    text-decoration: underline;
}

.tags-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.tags-cloud span {
    background: var(--bg-card);
    padding: 6px 14px;
    border-radius: 16px;
    font-size: 0.8rem;
    color: var(--text-mid);
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid transparent;
    white-space: nowrap;
}
.tags-cloud span:hover {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
    transform: translateY(-1px);
}

.update-time-badge {
    display: inline-block;
    font-size: 0.7rem;
    color: var(--highlight);
    background: #fff0f3;
    padding: 3px 10px;
    border-radius: 10px;
    margin-top: 6px;
    font-weight: 500;
}

@media (max-width: 1200px) {
    .main-container {
        grid-template-columns: 1fr 300px;
        gap: 18px;
        padding: 16px;
    }
    .hot-comics-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 12px;
    }
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .characters-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .app-download-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .comic-detail-showcase {
        grid-template-columns: 140px 1fr;
        gap: 14px;
    }
    .comic-detail-showcase img {
        width: 140px;
        height: 200px;
    }
}

@media (max-width: 900px) {
    .main-container {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 12px;
    }
    .sidebar-right {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 14px;
    }
    .sidebar-right .section-block.sidebar-full {
        grid-column: 1 / -1;
    }
    .hot-comics-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 10px;
    }
    .comic-card img {
        height: 200px;
    }
    .nav-center {
        display: none;
    }
    .mobile-menu-toggle {
        display: block;
    }
    .nav-center.mobile-open {
        display: flex;
        position: absolute;
        top: 64px;
        left: 0;
        width: 100%;
        background: #fff;
        flex-direction: column;
        padding: 12px 20px;
        box-shadow: var(--shadow-lg);
        border-bottom: 2px solid var(--accent);
        z-index: 999;
        gap: 2px;
    }
    .nav-center.mobile-open a {
        width: 100%;
        text-align: center;
        padding: 10px;
        border-radius: 8px;
    }
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    .characters-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    .character-card img {
        height: 160px;
    }
    .app-download-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    .footer-inner {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }
    .comic-detail-showcase {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .comic-detail-showcase img {
        width: 160px;
        height: 220px;
        margin: 0 auto;
    }
    .stats-row {
        grid-template-columns: repeat(3, 1fr);
        gap: 6px;
    }
    .stat-card .stat-num {
        font-size: 1.1rem;
    }
}

@media (max-width: 600px) {
    .hot-comics-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }
    .comic-card img {
        height: 170px;
    }
    .sidebar-right {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    .advantages-grid {
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }
    .characters-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }
    .character-card img {
        height: 140px;
    }
    .app-download-grid {
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }
    .footer-inner {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    .top-nav-inner {
        padding: 0 12px;
        height: 56px;
    }
    .nav-left h1 {
        font-size: 1.2rem;
    }
    .btn-login {
        padding: 8px 14px;
        font-size: 0.82rem;
    }
    .section-title {
        font-size: 1.15rem;
    }
    .stats-row {
        grid-template-columns: repeat(3, 1fr);
        gap: 4px;
    }
    .stat-card {
        padding: 10px 4px;
    }
    .stat-card .stat-num {
        font-size: 1rem;
    }
    .comic-detail-showcase img {
        width: 140px;
        height: 190px;
    }
    .section-block {
        padding: 16px 12px;
    }
}