/* 麻豆 MADOU FILMS - 全局样式 */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    background: #000000;
    color: #DDDDDD;
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

body.panel-open,
body.search-open {
    overflow: hidden;
}

a {
    color: #F7F7F7;
    text-decoration: none;
    transition: color 0.2s ease, opacity 0.2s ease;
}

a:hover {
    color: #FFFFFF;
}

a:focus-visible {
    outline: 2px solid rgba(255, 255, 255, 0.6);
    outline-offset: 2px;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    color: inherit;
}

ul, ol {
    list-style: none;
}

h1, h2, h3, h4 {
    color: #F7F7F7;
    font-weight: 600;
    line-height: 1.3;
    letter-spacing: 0.02em;
}

/* ========== 顶部信息栏 ========== */
.top-info-bar {
    background: #000000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    height: 36px;
    font-size: 12px;
    color: #A5A5A5;
}

.top-info-inner {
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 20px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.top-info-left {
    flex: 1;
}

.top-brand-text {
    color: #A5A5A5;
}

.top-info-center {
    display: flex;
    gap: 24px;
}

.top-info-center a {
    color: #A5A5A5;
}

.top-info-center a:hover {
    color: #FFFFFF;
}

.top-info-right {
    display: flex;
    align-items: center;
    gap: 20px;
    flex: 1;
    justify-content: flex-end;
}

.top-info-right a,
.search-trigger {
    color: #A5A5A5;
    font-size: 12px;
}

.top-info-right a:hover,
.search-trigger:hover {
    color: #FFFFFF;
}

.top-info-mobile {
    display: none;
    width: 100%;
    align-items: center;
    justify-content: space-between;
}

.top-brand-short {
    color: #A5A5A5;
}

.top-mobile-premiere {
    color: #C7C7C7;
    margin: 0 12px;
}

/* ========== 品牌导航 ========== */
.brand-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: #000000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    height: 64px;
}

.brand-header-inner {
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 20px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand-header-left {
    display: flex;
    align-items: center;
    gap: 16px;
    flex: 1;
    min-width: 0;
}

.panel-trigger {
    display: flex;
    align-items: center;
    gap: 8px;
    height: 44px;
    padding: 0 12px;
    color: #F7F7F7;
    font-size: 14px;
}

.panel-trigger-icon {
    width: 18px;
    height: 14px;
    position: relative;
    display: block;
}

.panel-trigger-icon::before,
.panel-trigger-icon::after {
    content: "";
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background: #FFFFFF;
}

.panel-trigger-icon::before {
    top: 0;
    box-shadow: 0 6px 0 #FFFFFF;
}

.panel-trigger-icon::after {
    bottom: 0;
}

.current-channel {
    font-size: 13px;
    color: #A5A5A5;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.brand-logo-wrap {
    flex-shrink: 0;
    text-align: center;
}

.brand-logo-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 44px;
}

.brand-logo-img {
    height: 36px;
    width: auto;
    object-fit: contain;
}

.brand-logo-text {
    display: flex;
    flex-direction: column;
    align-items: center;
    line-height: 1.2;
}

.brand-logo-text strong {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: #FFFFFF;
}

.brand-logo-text em {
    font-size: 10px;
    font-style: normal;
    letter-spacing: 0.2em;
    color: #C7C7C7;
    margin-top: 2px;
}

.brand-header-right {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
    justify-content: flex-end;
}

.header-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 40px;
    padding: 0 18px;
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
    border-radius: 4px;
    transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.header-btn-primary {
    background: #FFFFFF;
    color: #000000;
}

.header-btn-primary:hover {
    background: #EDEDED;
    color: #000000;
}

.header-btn-secondary {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.45);
    color: #F7F7F7;
}

.header-btn-secondary:hover {
    border-color: rgba(255, 255, 255, 0.8);
    color: #FFFFFF;
}

/* ========== 影视频道导航 ========== */
.channel-nav {
    background: #050505;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    position: relative;
    z-index: 90;
}

.channel-nav-inner {
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    height: 48px;
}

.channel-scroll {
    display: flex;
    align-items: center;
    gap: 4px;
    flex: 1;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.channel-scroll::-webkit-scrollbar {
    display: none;
}

.channel-item {
    display: inline-flex;
    align-items: center;
    height: 48px;
    padding: 0 14px;
    font-size: 14px;
    color: #A5A5A5;
    white-space: nowrap;
    position: relative;
    flex-shrink: 0;
}

.channel-item:hover {
    color: #F7F7F7;
}

.channel-item.is-active {
    color: #FFFFFF;
}

.channel-item.is-active::after {
    content: "";
    position: absolute;
    left: 14px;
    right: 14px;
    bottom: 0;
    height: 2px;
    background: #FFFFFF;
}

.channel-more-wrap {
    position: relative;
    flex-shrink: 0;
    margin-left: 8px;
}

.channel-more-btn {
    height: 48px;
    padding: 0 14px;
    font-size: 14px;
    color: #A5A5A5;
}

.channel-more-btn:hover {
    color: #FFFFFF;
}

.channel-more-menu {
    position: absolute;
    top: 100%;
    right: 0;
    min-width: 160px;
    background: #121212;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 6px;
    padding: 8px 0;
    box-shadow: 0 18px 46px rgba(0, 0, 0, 0.48);
    z-index: 110;
    opacity: 0;
    transform: translateY(-6px);
    transition: opacity 0.2s, transform 0.2s;
}

.channel-more-menu.is-open {
    opacity: 1;
    transform: translateY(0);
}

.channel-more-menu a {
    display: block;
    padding: 10px 18px;
    font-size: 14px;
    color: #DDDDDD;
}

.channel-more-menu a:hover {
    background: #1A1A1A;
    color: #FFFFFF;
}

/* ========== 主内容区 ========== */
.site-main {
    min-height: 60vh;
    padding-bottom: 40px;
}

.content-wrap {
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 56px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.section:last-of-type {
    border-bottom: none;
}

.section-header {
    margin-bottom: 32px;
}

.section-title {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: 0.04em;
    margin-bottom: 10px;
}

.section-desc {
    font-size: 15px;
    color: #A5A5A5;
    max-width: 640px;
    line-height: 1.7;
}

/* ========== 按钮 ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 48px;
    padding: 0 28px;
    font-size: 15px;
    font-weight: 500;
    border-radius: 4px;
    white-space: nowrap;
    transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.btn-primary {
    background: #FFFFFF;
    color: #000000;
}

.btn-primary:hover {
    background: #EDEDED;
    color: #000000;
}

.btn-secondary {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.45);
    color: #F7F7F7;
}

.btn-secondary:hover {
    border-color: rgba(255, 255, 255, 0.8);
    color: #FFFFFF;
}

.btn-group {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 24px;
}

/* ========== 首页主视觉 ========== */
.hero {
    background: #050505;
    padding: 48px 0 56px;
}

.hero-inner {
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 40px;
    align-items: center;
}

.hero-banner {
    position: relative;
    aspect-ratio: 16 / 9;
    background: #0B0B0B;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 8px;
    overflow: hidden;
}

.hero-banner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(20%) contrast(1.05);
}

.hero-banner-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0B0B0B 0%, #1A1A1A 100%);
    color: #727272;
    font-size: 14px;
    letter-spacing: 0.1em;
}

.hero-content h1 {
    font-size: 36px;
    font-weight: 700;
    letter-spacing: 0.06em;
    line-height: 1.25;
    margin-bottom: 16px;
    color: #FFFFFF;
}

.hero-lead {
    font-size: 16px;
    color: #A5A5A5;
    line-height: 1.75;
    margin-bottom: 8px;
}

.hero-news {
    margin-top: 28px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.hero-news-item {
    display: block;
    padding: 12px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.hero-news-item:first-child {
    border-top: none;
    padding-top: 0;
}

.hero-news-label {
    font-size: 12px;
    color: #C7C7C7;
    letter-spacing: 0.08em;
    margin-bottom: 4px;
}

.hero-news-text {
    font-size: 14px;
    color: #A5A5A5;
    line-height: 1.6;
}

.hero-news-item:hover .hero-news-text {
    color: #DDDDDD;
}

/* ========== 卡片网格 ========== */
.card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.card-grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.card-grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

.card {
    background: #0B0B0B;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 8px;
    overflow: hidden;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.card:hover {
    border-color: rgba(255, 255, 255, 0.4);
    box-shadow: 0 12px 34px rgba(255, 255, 255, 0.08);
}

.card-media {
    aspect-ratio: 16 / 10;
    background: #121212;
    overflow: hidden;
}

.card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(15%);
}

.card-media-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #727272;
    font-size: 13px;
    letter-spacing: 0.05em;
    background: #121212;
}

.card-body {
    padding: 20px;
}

.card-tag {
    font-size: 12px;
    color: #C7C7C7;
    letter-spacing: 0.06em;
    margin-bottom: 8px;
}

.card-title {
    font-size: 17px;
    font-weight: 600;
    color: #F7F7F7;
    margin-bottom: 8px;
    line-height: 1.4;
}

.card-text {
    font-size: 14px;
    color: #A5A5A5;
    line-height: 1.65;
}

.card-link {
    display: block;
    color: inherit;
}

.card-link:hover .card-title {
    color: #FFFFFF;
}

/* ========== 列表项 ========== */
.list-block {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.list-item {
    display: flex;
    gap: 20px;
    padding: 24px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.list-item:last-child {
    border-bottom: none;
}

.list-num {
    font-size: 20px;
    font-weight: 700;
    color: #727272;
    min-width: 36px;
    letter-spacing: 0.05em;
}

.list-content h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

.list-content p {
    font-size: 14px;
    color: #A5A5A5;
    line-height: 1.7;
}

/* ========== 页面通用标题区 ========== */
.page-hero {
    background: #050505;
    padding: 48px 0 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.page-hero-inner {
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 20px;
}

.page-hero h1 {
    font-size: 32px;
    font-weight: 700;
    letter-spacing: 0.05em;
    margin-bottom: 12px;
}

.page-hero-desc {
    font-size: 16px;
    color: #A5A5A5;
    max-width: 680px;
    line-height: 1.75;
}

/* ========== 文章内容 ========== */
.article-block {
    max-width: 800px;
}

.article-block h2 {
    font-size: 22px;
    margin: 36px 0 14px;
}

.article-block h3 {
    font-size: 18px;
    margin: 28px 0 10px;
}

.article-block p {
    font-size: 15px;
    color: #DDDDDD;
    line-height: 1.8;
    margin-bottom: 16px;
}

.article-block ul {
    margin: 12px 0 20px;
    padding-left: 0;
}

.article-block li {
    position: relative;
    padding-left: 18px;
    margin-bottom: 10px;
    font-size: 15px;
    color: #DDDDDD;
    line-height: 1.7;
}

.article-block li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.65em;
    width: 6px;
    height: 6px;
    background: #C7C7C7;
    border-radius: 50%;
}

.note-box {
    background: #0B0B0B;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 6px;
    padding: 18px 20px;
    margin: 24px 0;
    font-size: 14px;
    color: #A5A5A5;
    line-height: 1.7;
}

.note-box strong {
    color: #C7C7C7;
}

/* ========== FAQ ========== */
.faq-list details {
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding: 18px 0;
}

.faq-list summary {
    font-size: 16px;
    font-weight: 600;
    color: #F7F7F7;
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.faq-list summary::-webkit-details-marker {
    display: none;
}

.faq-list summary::after {
    content: "+";
    font-size: 20px;
    color: #A5A5A5;
    flex-shrink: 0;
}

.faq-list details[open] summary::after {
    content: "−";
}

.faq-list details p {
    margin-top: 12px;
    font-size: 14px;
    color: #A5A5A5;
    line-height: 1.75;
    padding-right: 24px;
}

/* ========== 页脚 ========== */
.site-footer {
    background: #000000;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    padding: 56px 0 100px;
}

.footer-inner {
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 20px;
}

.footer-brand {
    margin-bottom: 40px;
}

.footer-logo-img {
    height: 32px;
    width: auto;
    margin-bottom: 10px;
}

.footer-logo-text {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: #FFFFFF;
    display: block;
    margin-bottom: 8px;
}

.footer-brand-name {
    font-size: 12px;
    letter-spacing: 0.2em;
    color: #C7C7C7;
    margin-bottom: 12px;
}

.footer-brand-desc {
    font-size: 14px;
    color: #A5A5A5;
    max-width: 420px;
    line-height: 1.7;
}

.footer-columns {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    margin-bottom: 40px;
}

.footer-col-title {
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.08em;
    color: #C7C7C7;
    margin-bottom: 16px;
}

.footer-col a {
    display: block;
    font-size: 14px;
    color: #A5A5A5;
    padding: 6px 0;
}

.footer-col a:hover {
    color: #FFFFFF;
}

.footer-notice {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 24px;
    margin-bottom: 20px;
}

.footer-notice p {
    font-size: 13px;
    color: #727272;
    line-height: 1.7;
    max-width: 900px;
}

.footer-copyright p {
    font-size: 13px;
    color: #727272;
}

/* ========== 全站栏目面板 ========== */
.side-panel-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 200;
    opacity: 0;
    transition: opacity 0.28s ease;
    visibility: hidden;
    pointer-events: none;
}

.side-panel-overlay.is-open {
    opacity: 1;
}

.side-panel {
    position: fixed;
    top: 0;
    left: 0;
    width: 500px;
    max-width: 90vw;
    height: 100%;
    background: #0B0B0B;
    border-right: 1px solid rgba(255, 255, 255, 0.12);
    z-index: 210;
    display: flex;
    flex-direction: column;
    transform: translateX(-100%);
    transition: transform 0.28s ease;
    visibility: hidden;
    pointer-events: none;
}

.side-panel.is-open {
    transform: translateX(0);
}

.side-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    flex-shrink: 0;
}

.side-panel-logo img {
    height: 28px;
    width: auto;
}

.side-panel-logo span {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: #FFFFFF;
}

.side-panel-close {
    height: 40px;
    padding: 0 14px;
    font-size: 14px;
    color: #A5A5A5;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 4px;
}

.side-panel-close:hover {
    color: #FFFFFF;
    border-color: rgba(255, 255, 255, 0.5);
}

.side-panel-body {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
    -webkit-overflow-scrolling: touch;
}

.side-panel-group {
    margin-bottom: 32px;
}

.side-panel-group-title {
    font-size: 12px;
    letter-spacing: 0.12em;
    color: #727272;
    margin-bottom: 14px;
    text-transform: uppercase;
}

.side-panel-item {
    display: block;
    padding: 14px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.side-panel-item strong {
    display: block;
    font-size: 15px;
    color: #F7F7F7;
    margin-bottom: 4px;
}

.side-panel-item span {
    font-size: 13px;
    color: #A5A5A5;
    line-height: 1.55;
}

.side-panel-item:hover strong {
    color: #FFFFFF;
}

/* ========== 搜索面板 ========== */
.search-panel {
    position: fixed;
    inset: 0;
    background: #000000;
    z-index: 220;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 80px 20px 40px;
    opacity: 0;
    transition: opacity 0.28s ease;
    visibility: hidden;
    pointer-events: none;
    overflow-y: auto;
}

.search-panel.is-open {
    opacity: 1;
}

.search-panel-inner {
    width: 100%;
    max-width: 640px;
}

.search-panel-close {
    position: absolute;
    top: 24px;
    right: 24px;
    height: 40px;
    padding: 0 16px;
    font-size: 14px;
    color: #A5A5A5;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 4px;
}

.search-panel-close:hover {
    color: #FFFFFF;
}

.search-label {
    display: block;
    font-size: 13px;
    color: #A5A5A5;
    margin-bottom: 10px;
}

.search-input {
    width: 100%;
    height: 56px;
    background: #0B0B0B;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    padding: 0 20px;
    font-size: 16px;
    color: #FFFFFF;
    outline: none;
}

.search-input:focus {
    border-color: rgba(255, 255, 255, 0.5);
}

.search-input::placeholder {
    color: #727272;
}

.search-section-title {
    font-size: 13px;
    letter-spacing: 0.08em;
    color: #727272;
    margin: 32px 0 14px;
}

.search-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.search-tags a {
    display: inline-flex;
    height: 36px;
    padding: 0 16px;
    align-items: center;
    background: #121212;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 4px;
    font-size: 13px;
    color: #DDDDDD;
}

.search-tags a:hover {
    border-color: rgba(255, 255, 255, 0.4);
    color: #FFFFFF;
}

.search-quick-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}

.search-quick-links a {
    display: block;
    padding: 12px 16px;
    background: #0B0B0B;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 4px;
    font-size: 14px;
    color: #A5A5A5;
}

.search-quick-links a:hover {
    border-color: rgba(255, 255, 255, 0.3);
    color: #FFFFFF;
}

/* ========== 手机底部导航 ========== */
.mobile-bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: calc(56px + env(safe-area-inset-bottom, 0px));
    padding-bottom: env(safe-area-inset-bottom, 0px);
    background: #000000;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    z-index: 150;
    justify-content: space-around;
    align-items: stretch;
}

.mobile-nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    min-height: 48px;
    color: #A5A5A5;
    font-size: 11px;
}

.mobile-nav-item.is-active {
    color: #FFFFFF;
}

.mobile-nav-icon {
    width: 22px;
    height: 22px;
    border: 1.5px solid currentColor;
    border-radius: 4px;
    position: relative;
}

.mobile-nav-home {
    border-radius: 3px;
}

.mobile-nav-premiere::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 6px;
    height: 6px;
    background: currentColor;
    border-radius: 50%;
    transform: translate(-50%, -50%);
}

.mobile-nav-series {
    border-radius: 2px;
}

.mobile-nav-watchlist {
    border-style: dashed;
}

.mobile-nav-app {
    border-radius: 6px;
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
    .hero-inner {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .hero-content h1 {
        font-size: 28px;
    }

    .card-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .card-grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-columns {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .top-info-bar {
        height: 40px;
    }

    .top-info-left,
    .top-info-center,
    .top-info-right {
        display: none;
    }

    .top-info-mobile {
        display: flex;
    }

    .brand-header {
        height: 56px;
    }

    .current-channel {
        display: none;
    }

    .brand-header-right .header-btn-primary {
        display: none;
    }

    .header-btn {
        height: 36px;
        padding: 0 12px;
        font-size: 12px;
    }

    .channel-nav-inner {
        padding: 0 12px;
    }

    .channel-item {
        padding: 0 10px;
        font-size: 13px;
    }

    .content-wrap,
    .page-hero-inner,
    .hero-inner,
    .footer-inner,
    .top-info-inner,
    .brand-header-inner {
        padding-left: 14px;
        padding-right: 14px;
    }

    .hero {
        padding: 32px 0 40px;
    }

    .hero-content h1 {
        font-size: 24px;
    }

    .section {
        padding: 40px 0;
    }

    .section-title {
        font-size: 22px;
    }

    .page-hero h1 {
        font-size: 24px;
    }

    .card-grid,
    .card-grid-2,
    .card-grid-4 {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .footer-columns {
        grid-template-columns: 1fr 1fr;
        gap: 24px;
    }

    .site-footer {
        padding-bottom: 120px;
    }

    .mobile-bottom-nav {
        display: flex;
    }

    .side-panel {
        width: 90vw;
    }

    .btn {
        height: 44px;
        font-size: 14px;
        padding: 0 20px;
    }

    .list-item {
        flex-direction: column;
        gap: 8px;
    }
}

@media (max-width: 480px) {
    .footer-columns {
        grid-template-columns: 1fr;
    }

    .search-quick-links {
        grid-template-columns: 1fr;
    }

    .btn-group {
        flex-direction: column;
    }

    .btn-group .btn {
        width: 100%;
    }
}

/* 工具类 */
.text-center {
    text-align: center;
}

.mt-24 {
    margin-top: 24px;
}

.mt-32 {
    margin-top: 32px;
}

.mb-16 {
    margin-bottom: 16px;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}