:root {
    --color-sky: #aedefc;
    --color-cream: #fff6f6;
    --color-blush: #ffdfdf;
    --color-rose: #fb929e;
    --color-white: #ffffff;
    --color-dark: #2c3e50;
    --color-gray: #6b7280;
    --color-light-gray: #f8f9fa;
    --color-border: #e9ecef;
    --color-text: #333333;
    --color-text-light: #666666;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --transition: all 0.3s ease;
    --max-width: 1320px;
    --nav-height: 64px;
}

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

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
    background-color: #fafbfc;
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* ========== 顶部导航栏 100%宽度 ========== */
.top-nav {
    width: 100%;
    height: var(--nav-height);
    background: var(--color-white);
    position: sticky;
    top: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
    border-bottom: 2px solid var(--color-sky);
    gap: 16px;
}

.nav-brand h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-rose);
    letter-spacing: 1px;
    white-space: nowrap;
    margin: 0;
    line-height: 1;
}
.nav-brand h1 span {
    color: var(--color-dark);
    font-weight: 400;
    font-size: 1.1rem;
    letter-spacing: 0;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 6px;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
}
.nav-links li a {
    display: inline-block;
    padding: 8px 14px;
    text-decoration: none;
    color: var(--color-dark);
    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 {
    background: var(--color-sky);
    color: #1a1a2e;
    outline: none;
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 10px;
    white-space: nowrap;
    cursor: pointer;
    padding: 6px 14px;
    border-radius: 20px;
    background: var(--color-cream);
    transition: var(--transition);
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--color-dark);
    border: 1px solid transparent;
}
.nav-user:hover {
    border-color: var(--color-rose);
    background: var(--color-blush);
}
.nav-user .avatar-dot {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--color-rose);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 0.85rem;
    flex-shrink: 0;
}

/* 移动端导航汉堡 */
.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-dark);
    margin: 5px 0;
    border-radius: 2px;
    transition: var(--transition);
}

@media (max-width: 1024px) {
    .nav-links {
        display: none;
        position: absolute;
        top: var(--nav-height);
        left: 0;
        width: 100%;
        background: var(--color-white);
        flex-direction: column;
        padding: 16px 24px;
        box-shadow: var(--shadow-md);
        gap: 2px;
        border-bottom: 3px solid var(--color-sky);
        z-index: 999;
    }
    .nav-links.active {
        display: flex;
    }
    .nav-links li a {
        width: 100%;
        padding: 12px 16px;
        border-radius: 8px;
        font-size: 1rem;
    }
    .nav-toggle {
        display: block;
    }
    .nav-user span:not(.avatar-dot) {
        display: none;
    }
    .nav-brand h1 {
        font-size: 1.25rem;
    }
    .nav-brand h1 span {
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .top-nav {
        padding: 0 12px;
    }
    .nav-brand h1 {
        font-size: 1.1rem;
    }
    .nav-brand h1 span {
        display: none;
    }
    .nav-user {
        padding: 6px 10px;
        font-size: 0.8rem;
    }
}

/* ========== 主体容器 ========== */
.main-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    gap: 28px;
}
.content-area {
    flex: 1;
    min-width: 0;
}
.sidebar {
    width: 340px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

@media (max-width: 1100px) {
    .main-container {
        flex-direction: column;
        padding: 0 16px;
    }
    .sidebar {
        width: 100%;
        order: -1;
        flex-direction: row;
        flex-wrap: wrap;
        gap: 12px;
    }
    .sidebar>* {
        flex: 1 1 260px;
        min-width: 240px;
    }
}
@media (max-width: 600px) {
    .main-container {
        padding: 0 10px;
        gap: 16px;
    }
    .sidebar {
        flex-direction: column;
        gap: 12px;
    }
    .sidebar>* {
        flex: 1 1 auto;
        min-width: auto;
    }
}

/* ========== Banner轮播 ========== */
.banner-section {
    width: 100%;
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg);
    margin-top: 20px;
    margin-bottom: 28px;
    box-shadow: var(--shadow-lg);
    aspect-ratio: 16 / 7;
    background: #e8e8e8;
}
.banner-slides {
    display: flex;
    width: 100%;
    height: 100%;
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.banner-slide {
    min-width: 100%;
    height: 100%;
    position: relative;
    flex-shrink: 0;
}
.banner-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.banner-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 40px 48px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.75));
    color: #fff;
}
.banner-overlay h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 6px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.4);
}
.banner-overlay p {
    font-size: 1rem;
    opacity: 0.9;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}
.banner-dots {
    position: absolute;
    bottom: 16px;
    right: 48px;
    display: flex;
    gap: 8px;
}
.banner-dots button {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    border: none;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: var(--transition);
    padding: 0;
}
.banner-dots button.active {
    background: #fff;
    width: 28px;
    border-radius: 5px;
}
.banner-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.85);
    border: none;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--color-dark);
    z-index: 5;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}
.banner-arrow:hover {
    background: #fff;
    box-shadow: var(--shadow-md);
}
.banner-arrow.prev {
    left: 16px;
}
.banner-arrow.next {
    right: 16px;
}

@media (max-width: 768px) {
    .banner-section {
        aspect-ratio: 16 / 9;
        border-radius: var(--radius-md);
        margin-top: 14px;
        margin-bottom: 18px;
    }
    .banner-overlay {
        padding: 20px 24px;
    }
    .banner-overlay h2 {
        font-size: 1.3rem;
    }
    .banner-overlay p {
        font-size: 0.85rem;
    }
    .banner-arrow {
        width: 32px;
        height: 32px;
        font-size: 0.9rem;
    }
    .banner-dots {
        right: 20px;
        bottom: 10px;
    }
}

/* ========== 区块标题 ========== */
.section-title {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 3px solid var(--color-sky);
    position: relative;
}
.section-title h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-dark);
    white-space: nowrap;
}
.section-title .title-icon {
    width: 6px;
    height: 28px;
    background: var(--color-rose);
    border-radius: 3px;
    flex-shrink: 0;
}
.section-title .title-badge {
    font-size: 0.8rem;
    background: var(--color-blush);
    color: var(--color-rose);
    padding: 4px 10px;
    border-radius: 12px;
    font-weight: 600;
}

@media (max-width: 600px) {
    .section-title h2 {
        font-size: 1.2rem;
    }
    .section-title {
        margin-bottom: 14px;
        padding-bottom: 8px;
    }
}

/* ========== 通用卡片 ========== */
.card {
    background: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    overflow: hidden;
    border: 1px solid var(--color-border);
}
.card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
    border-color: var(--color-sky);
}
.card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
    background: #eef1f5;
}
.card-body {
    padding: 14px 16px;
}
.card-body h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--color-dark);
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.card-body .meta {
    font-size: 0.8rem;
    color: var(--color-gray);
    line-height: 1.5;
}
.card-body .meta span {
    display: inline-block;
    margin-right: 8px;
}
.card-body .tag {
    display: inline-block;
    padding: 3px 8px;
    border-radius: 10px;
    font-size: 0.72rem;
    font-weight: 500;
    margin: 2px 3px;
    background: var(--color-sky);
    color: #2c3e50;
}
.card-body .tag.hot {
    background: var(--color-rose);
    color: #fff;
}
.card-body .tag.site {
    background: #ffe0b2;
    color: #e65100;
    font-weight: 700;
}

/* ========== 热门影视网格 6行x4列 ========== */
.movie-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}
@media (max-width: 1024px) {
    .movie-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 12px;
    }
}
@media (max-width: 768px) {
    .movie-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
}
@media (max-width: 400px) {
    .movie-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }
    .card img {
        height: 140px;
    }
    .card-body {
        padding: 10px 12px;
    }
    .card-body h3 {
        font-size: 0.85rem;
    }
    .card-body .meta {
        font-size: 0.7rem;
    }
}
.movie-grid .card img {
    height: 180px;
}
@media (max-width: 600px) {
    .movie-grid .card img {
        height: 140px;
    }
}

/* ========== 明星卡片行 ========== */
.star-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}
@media (max-width: 900px) {
    .star-row {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
}
@media (max-width: 480px) {
    .star-row {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }
}
.star-card {
    text-align: center;
    background: var(--color-white);
    border-radius: var(--radius-md);
    padding: 20px 16px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--color-border);
}
.star-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
    border-color: var(--color-rose);
}
.star-card img {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 12px;
    display: block;
    border: 3px solid var(--color-sky);
}
.star-card h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-dark);
}
.star-card p {
    font-size: 0.8rem;
    color: var(--color-gray);
    margin-top: 4px;
}

/* ========== 剧情介绍卡片 ========== */
.plot-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}
@media (max-width: 700px) {
    .plot-row {
        grid-template-columns: 1fr;
        gap: 12px;
    }
}
.plot-card {
    display: flex;
    gap: 14px;
    background: var(--color-white);
    border-radius: var(--radius-md);
    padding: 16px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--color-border);
    align-items: flex-start;
}
.plot-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-sky);
}
.plot-card img {
    width: 130px;
    height: 170px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}
.plot-card .plot-info h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--color-dark);
}
.plot-card .plot-info p {
    font-size: 0.85rem;
    color: var(--color-text-light);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 5;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
@media (max-width: 480px) {
    .plot-card {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    .plot-card img {
        width: 100%;
        height: 160px;
        border-radius: var(--radius-sm);
    }
}

/* ========== 电影详情介绍 ========== */
.detail-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}
@media (max-width: 768px) {
    .detail-row {
        grid-template-columns: 1fr;
        gap: 12px;
    }
}
.detail-card {
    background: var(--color-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--color-border);
    display: flex;
    gap: 0;
}
.detail-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-sky);
}
.detail-card img {
    width: 150px;
    height: 210px;
    object-fit: cover;
    flex-shrink: 0;
}
.detail-card .detail-info {
    padding: 16px;
    flex: 1;
    min-width: 0;
}
.detail-card .detail-info h3 {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 8px;
}
.detail-card .detail-info p {
    font-size: 0.8rem;
    color: var(--color-text-light);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 6;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
@media (max-width: 480px) {
    .detail-card {
        flex-direction: column;
    }
    .detail-card img {
        width: 100%;
        height: 180px;
    }
}

/* ========== 右侧边栏 ========== */
.sidebar-card {
    background: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    padding: 20px;
    border: 1px solid var(--color-border);
}
.sidebar-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 14px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--color-blush);
    display: flex;
    align-items: center;
    gap: 8px;
}
.sidebar-card h3 .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-rose);
    flex-shrink: 0;
}
.reading-total {
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--color-rose);
    text-align: center;
    padding: 10px 0;
}
.reading-total .unit {
    font-size: 1rem;
    color: var(--color-gray);
    font-weight: 400;
}
.reading-update {
    text-align: center;
    font-size: 0.8rem;
    color: var(--color-gray);
    margin-top: 4px;
}
.stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px dashed var(--color-border);
}
.stat-item:last-child {
    border-bottom: none;
}
.stat-label {
    font-size: 0.9rem;
    color: var(--color-text-light);
}
.stat-value {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-dark);
}
.stat-value.up {
    color: #10b981;
}
.rank-list {
    list-style: none;
}
.rank-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 0;
    border-bottom: 1px solid var(--color-border);
    cursor: pointer;
    transition: var(--transition);
    border-radius: 6px;
    padding: 10px 8px;
}
.rank-list li:hover {
    background: var(--color-cream);
}
.rank-num {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    flex-shrink: 0;
    color: #fff;
}
.rank-num.top1 {
    background: #f59e0b;
}
.rank-num.top2 {
    background: #94a3b8;
}
.rank-num.top3 {
    background: #b87c4b;
}
.rank-num.normal {
    background: #cbd5e1;
    color: #555;
}
.rank-info {
    flex: 1;
    min-width: 0;
}
.rank-info .r-title {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-dark);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.rank-info .r-meta {
    font-size: 0.75rem;
    color: var(--color-gray);
}

/* ========== 评论区域 ========== */
.comment-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.comment-item {
    background: var(--color-cream);
    border-radius: var(--radius-sm);
    padding: 14px 16px;
    border-left: 3px solid var(--color-sky);
    transition: var(--transition);
}
.comment-item:hover {
    border-left-color: var(--color-rose);
    background: #fff;
    box-shadow: var(--shadow-sm);
}
.comment-item .comment-user {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-dark);
    margin-bottom: 4px;
}
.comment-item .comment-text {
    font-size: 0.85rem;
    color: var(--color-text-light);
    line-height: 1.6;
}
.comment-item .comment-time {
    font-size: 0.72rem;
    color: #aaa;
    margin-top: 6px;
}

/* ========== APP下载区域 ========== */
.download-section {
    background: linear-gradient(135deg, var(--color-cream) 0%, var(--color-blush) 100%);
    border-radius: var(--radius-lg);
    padding: 28px 32px;
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    align-items: center;
    justify-content: space-between;
    border: 2px solid var(--color-sky);
}
.download-info h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 6px;
}
.download-info p {
    font-size: 0.9rem;
    color: var(--color-text-light);
}
.download-btns {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}
.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 11px 20px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition);
    border: 2px solid transparent;
    cursor: pointer;
    white-space: nowrap;
}
.download-btn.android {
    background: #3ddc84;
    color: #fff;
    border-color: #3ddc84;
}
.download-btn.android:hover {
    background: #2bbf6e;
    box-shadow: 0 4px 14px rgba(61, 220, 132, 0.4);
}
.download-btn.ios {
    background: #000;
    color: #fff;
    border-color: #000;
}
.download-btn.ios:hover {
    background: #222;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.3);
}
.download-btn.pc {
    background: #52616b;
    color: #fff;
    border-color: #52616b;
}
.download-btn.pc:hover {
    background: #3d4a52;
    box-shadow: 0 4px 14px rgba(82, 97, 107, 0.4);
}
.download-btn.mac {
    background: #fff;
    color: #333;
    border-color: #ccc;
}
.download-btn.mac:hover {
    background: #f5f5f5;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.1);
}
.app-icon {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
}

@media (max-width: 600px) {
    .download-section {
        padding: 20px;
        flex-direction: column;
        text-align: center;
    }
    .download-btns {
        justify-content: center;
        gap: 8px;
    }
    .download-btn {
        padding: 10px 16px;
        font-size: 0.8rem;
    }
}

/* ========== 平台介绍 ========== */
.intro-section {
    background: var(--color-white);
    border-radius: var(--radius-md);
    padding: 28px 32px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    line-height: 1.8;
}
.intro-section h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 12px;
}
.intro-section p {
    color: var(--color-text-light);
    font-size: 0.95rem;
}

/* ========== 底部导航 100%宽度 ========== */
.footer-nav {
    width: 100%;
    background: var(--color-dark);
    color: #ccc;
    padding: 32px 24px 20px;
    margin-top: 40px;
    border-top: 3px solid var(--color-rose);
}
.footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    justify-content: space-between;
    align-items: flex-start;
}
.footer-col h4 {
    color: #fff;
    font-size: 1rem;
    margin-bottom: 10px;
}
.footer-col a {
    display: block;
    color: #aaa;
    text-decoration: none;
    font-size: 0.85rem;
    padding: 4px 0;
    transition: var(--transition);
}
.footer-col a:hover {
    color: var(--color-rose);
}
.footer-bottom {
    text-align: center;
    padding-top: 20px;
    margin-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    font-size: 0.8rem;
    color: #888;
    max-width: var(--max-width);
    margin-left: auto;
    margin-right: auto;
}
.footer-bottom a {
    color: var(--color-rose);
    text-decoration: none;
    font-weight: 500;
}
.footer-bottom a:hover {
    text-decoration: underline;
}
@media (max-width: 600px) {
    .footer-inner {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
}

/* ========== 回到顶部 ========== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--color-rose);
    color: #fff;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    box-shadow: var(--shadow-md);
    z-index: 900;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.85;
}
.back-to-top:hover {
    opacity: 1;
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

/* ========== 动画 ========== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
.animate-in {
    animation: fadeInUp 0.5s ease forwards;
}

/* 间距工具 */
.section-spacing {
    margin-bottom: 36px;
}
@media (max-width: 600px) {
    .section-spacing {
        margin-bottom: 24px;
    }
}