/* ============================================
   国产主播 全站样式 - kxqere.cn
   原创设计：粉紫渐变主题 + 影视传媒风格
   ============================================ */

/* === CSS Variables === */
:root {
    --tx-pink: #e84393;
    --tx-purple: #6c5ce7;
    --tx-dark: #1a1025;
    --tx-dark2: #2d1b3d;
    --tx-light: #fdf2f8;
    --tx-white: #ffffff;
    --tx-gray: #f8f5fc;
    --tx-text: #333333;
    --tx-text-light: #666666;
    --tx-border: #e8e0f0;
    --tx-gradient: linear-gradient(135deg, #e84393 0%, #6c5ce7 100%);
    --tx-gradient2: linear-gradient(135deg, #fd79a8 0%, #a29bfe 100%);
    --tx-shadow: 0 4px 20px rgba(108, 92, 231, 0.12);
    --tx-shadow-hover: 0 8px 32px rgba(232, 67, 147, 0.2);
    --tx-radius: 12px;
    --tx-radius-sm: 8px;
    --tx-transition: all 0.3s ease;
    --tx-font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

/* === Reset & Base === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--tx-font); color: var(--tx-text); background: var(--tx-white); line-height: 1.7; -webkit-font-smoothing: antialiased; }
a { color: var(--tx-pink); text-decoration: none; transition: var(--tx-transition); }
a:hover { color: var(--tx-purple); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { color: var(--tx-dark); line-height: 1.4; font-weight: 700; }
h1 { font-size: 2rem; margin-bottom: 1rem; }
h2 { font-size: 1.6rem; margin-bottom: 0.8rem; text-align: center; }
h3 { font-size: 1.15rem; margin-bottom: 0.5rem; }
p { margin-bottom: 0.8rem; }

/* === Noise (干扰标签) === */
.noi { position: absolute; left: -9999px; top: -9999px; visibility: hidden; overflow: hidden; width: 1px; height: 1px; }

/* === Container === */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* === Buttons === */
.btn { display: inline-block; padding: 12px 28px; border-radius: 50px; font-size: 0.95rem; font-weight: 600; cursor: pointer; transition: var(--tx-transition); border: none; text-align: center; }
.btn-primary { background: var(--tx-gradient); color: var(--tx-white); box-shadow: 0 4px 15px rgba(232, 67, 147, 0.3); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(232, 67, 147, 0.4); color: var(--tx-white); }
.btn-outline { background: transparent; color: var(--tx-pink); border: 2px solid var(--tx-pink); }
.btn-outline:hover { background: var(--tx-pink); color: var(--tx-white); }
.btn-sm { padding: 8px 18px; font-size: 0.85rem; }

/* === Header === */
.site-header { background: var(--tx-white); box-shadow: 0 2px 12px rgba(0,0,0,0.06); position: sticky; top: 0; z-index: 1000; }
.header-inner { max-width: 1200px; margin: 0 auto; padding: 0 20px; display: flex; align-items: center; justify-content: space-between; height: 68px; }
.logo-link { display: flex; align-items: center; }
.logo-img { height: 42px; width: auto; }
.main-nav .nav-list { display: flex; gap: 4px; }
.main-nav .nav-list li a { display: block; padding: 8px 16px; border-radius: 8px; font-size: 0.9rem; font-weight: 500; color: var(--tx-text); transition: var(--tx-transition); }
.main-nav .nav-list li a:hover,
.main-nav .nav-list li a.active { background: var(--tx-light); color: var(--tx-pink); }
.mobile-menu-btn { display: none; background: none; border: none; cursor: pointer; padding: 8px; flex-direction: column; gap: 5px; }
.mobile-menu-btn span { display: block; width: 24px; height: 2px; background: var(--tx-dark); border-radius: 2px; transition: var(--tx-transition); }
.search-bar { background: var(--tx-gray); padding: 10px 0; }
.search-inner { max-width: 600px; margin: 0 auto; display: flex; gap: 8px; padding: 0 20px; }
.search-input { flex: 1; padding: 10px 18px; border: 2px solid var(--tx-border); border-radius: 50px; font-size: 0.9rem; outline: none; transition: var(--tx-transition); }
.search-input:focus { border-color: var(--tx-pink); box-shadow: 0 0 0 3px rgba(232, 67, 147, 0.1); }
.search-btn { padding: 10px 24px; background: var(--tx-gradient); color: var(--tx-white); border: none; border-radius: 50px; cursor: pointer; font-weight: 600; transition: var(--tx-transition); }
.search-btn:hover { transform: scale(1.02); }

/* === Hero Banner === */
.hero-banner { position: relative; height: 480px; overflow: hidden; display: flex; align-items: center; justify-content: center; }
.hero-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(135deg, rgba(26,16,37,0.75) 0%, rgba(108,92,231,0.55) 100%); z-index: 1; }
.hero-content { position: relative; z-index: 2; text-align: center; color: var(--tx-white); padding: 0 20px; max-width: 800px; }
.hero-content h1 { font-size: 2.4rem; color: var(--tx-white); margin-bottom: 1rem; text-shadow: 0 2px 10px rgba(0,0,0,0.3); }
.hero-sub { font-size: 1.1rem; opacity: 0.92; margin-bottom: 2rem; line-height: 1.6; }
.hero-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* === Quick Nav === */
.quick-nav { background: var(--tx-white); padding: 30px 0; border-bottom: 1px solid var(--tx-border); }
.quick-nav-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.quick-item { display: flex; flex-direction: column; align-items: center; gap: 8px; padding: 18px 10px; border-radius: var(--tx-radius); background: var(--tx-gray); transition: var(--tx-transition); text-decoration: none; color: var(--tx-text); }
.quick-item:hover { background: var(--tx-light); transform: translateY(-3px); box-shadow: var(--tx-shadow); color: var(--tx-pink); }
.quick-icon { font-size: 1.8rem; }
.quick-text { font-size: 0.85rem; font-weight: 600; }

/* === Sections === */
section { padding: 60px 0; }
section:nth-child(even) { background: var(--tx-gray); }
.section-desc { text-align: center; color: var(--tx-text-light); max-width: 700px; margin: 0 auto 2rem; font-size: 0.95rem; }
.section-more { text-align: center; margin-top: 2rem; }

/* === Brand Intro === */
.brand-intro { background: var(--tx-white); }
.brand-content { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; margin-top: 1.5rem; }
.brand-text p { color: var(--tx-text-light); font-size: 0.95rem; }
.brand-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-content: center; }
.stat-item { background: var(--tx-gradient); color: var(--tx-white); padding: 24px; border-radius: var(--tx-radius); text-align: center; }
.stat-num { display: block; font-size: 1.8rem; font-weight: 800; margin-bottom: 4px; }
.stat-label { font-size: 0.82rem; opacity: 0.9; }

/* === Video Grid === */
.video-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.video-card { background: var(--tx-white); border-radius: var(--tx-radius); overflow: hidden; box-shadow: var(--tx-shadow); transition: var(--tx-transition); cursor: pointer; }
.video-card:hover { transform: translateY(-5px); box-shadow: var(--tx-shadow-hover); }
.video-thumb { position: relative; overflow: hidden; aspect-ratio: 16/9; }
.video-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.video-card:hover .video-thumb img { transform: scale(1.05); }
.play-overlay { position: absolute; inset: 0; background: rgba(0,0,0,0.25); display: flex; align-items: center; justify-content: center; opacity: 0; transition: var(--tx-transition); }
.video-card:hover .play-overlay { opacity: 1; }
.play-btn { width: 56px; height: 56px; background: rgba(232, 67, 147, 0.9); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: var(--tx-white); font-size: 1.4rem; padding-left: 4px; box-shadow: 0 4px 15px rgba(0,0,0,0.3); }
.video-duration { position: absolute; bottom: 8px; right: 8px; background: rgba(0,0,0,0.75); color: var(--tx-white); padding: 2px 8px; border-radius: 4px; font-size: 0.78rem; font-weight: 600; }
.video-info { padding: 16px; }
.video-info h3 { font-size: 0.95rem; line-height: 1.4; margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.video-meta { display: flex; gap: 12px; font-size: 0.78rem; color: var(--tx-text-light); margin-bottom: 8px; }
.video-tag { display: inline-block; padding: 2px 10px; background: var(--tx-light); color: var(--tx-pink); border-radius: 20px; font-size: 0.72rem; margin-right: 6px; }

/* === Card Grid === */
.card-grid { display: grid; gap: 24px; }
.card-grid.four-col { grid-template-columns: repeat(4, 1fr); }
.card-grid.three-col { grid-template-columns: repeat(3, 1fr); }
.feature-card { background: var(--tx-white); padding: 28px 24px; border-radius: var(--tx-radius); box-shadow: var(--tx-shadow); transition: var(--tx-transition); }
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--tx-shadow-hover); }
.card-icon { font-size: 2.2rem; margin-bottom: 12px; }
.feature-card h3 { font-size: 1.05rem; }
.feature-card p { font-size: 0.88rem; color: var(--tx-text-light); line-height: 1.6; }
.card-pink { border-top: 3px solid var(--tx-pink); }
.card-purple { border-top: 3px solid var(--tx-purple); }
.card-gradient { border-top: 3px solid transparent; border-image: var(--tx-gradient) 1; }

/* === Community Grid === */
.community-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.community-card { background: var(--tx-white); padding: 30px 24px; border-radius: var(--tx-radius); text-align: center; box-shadow: var(--tx-shadow); transition: var(--tx-transition); }
.community-card:hover { transform: translateY(-4px); box-shadow: var(--tx-shadow-hover); }
.comm-icon { font-size: 2.5rem; margin-bottom: 12px; display: block; }

/* === Expert Grid === */
.expert-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.expert-card { background: var(--tx-white); border-radius: var(--tx-radius); padding: 28px 20px; text-align: center; box-shadow: var(--tx-shadow); transition: var(--tx-transition); }
.expert-card:hover { transform: translateY(-4px); box-shadow: var(--tx-shadow-hover); }
.expert-card img { width: 120px; height: 120px; border-radius: 50%; object-fit: cover; margin: 0 auto 16px; border: 3px solid var(--tx-light); }
.expert-title { color: var(--tx-pink); font-size: 0.85rem; font-weight: 600; margin-bottom: 8px; }
.expert-desc { font-size: 0.82rem; color: var(--tx-text-light); line-height: 1.6; }
.expert-tags { margin: 12px 0; display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; }
.expert-tags span { padding: 3px 10px; background: var(--tx-light); color: var(--tx-purple); border-radius: 20px; font-size: 0.72rem; }
.expert-actions { display: flex; gap: 8px; justify-content: center; margin-top: 12px; }

/* === Partners === */
.partner-wall { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.partner-item { background: var(--tx-white); padding: 20px; border-radius: var(--tx-radius-sm); text-align: center; font-weight: 600; color: var(--tx-text-light); border: 1px solid var(--tx-border); transition: var(--tx-transition); }
.partner-item:hover { border-color: var(--tx-pink); color: var(--tx-pink); }

/* === HowTo Steps === */
.howto-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; counter-reset: step; }
.step-item { background: var(--tx-white); padding: 28px 20px; border-radius: var(--tx-radius); box-shadow: var(--tx-shadow); text-align: center; position: relative; }
.step-num { font-size: 2.5rem; font-weight: 900; background: var(--tx-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; margin-bottom: 12px; }
.step-item h3 { font-size: 1rem; }
.step-item p { font-size: 0.85rem; color: var(--tx-text-light); }

/* === Guide Steps (Creative page) === */
.guide-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.guide-step { background: var(--tx-white); padding: 28px 20px; border-radius: var(--tx-radius); box-shadow: var(--tx-shadow); text-align: center; }
.guide-num { font-size: 2.5rem; font-weight: 900; background: var(--tx-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; margin-bottom: 12px; }

/* === Reviews === */
.review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.review-card { background: var(--tx-white); padding: 24px; border-radius: var(--tx-radius); box-shadow: var(--tx-shadow); }
.review-stars { color: #f39c12; font-size: 1.1rem; margin-bottom: 10px; }
.review-text { font-size: 0.9rem; color: var(--tx-text-light); font-style: italic; line-height: 1.7; margin-bottom: 12px; }
.review-author strong { display: block; color: var(--tx-dark); font-size: 0.9rem; }
.review-author span { font-size: 0.78rem; color: var(--tx-text-light); }

/* === FAQ === */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border: 1px solid var(--tx-border); border-radius: var(--tx-radius-sm); margin-bottom: 10px; overflow: hidden; }
.faq-question { width: 100%; padding: 16px 20px; background: var(--tx-white); border: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; font-size: 0.95rem; font-weight: 600; color: var(--tx-dark); transition: var(--tx-transition); }
.faq-question:hover { background: var(--tx-light); }
.faq-toggle { font-size: 1.3rem; color: var(--tx-pink); transition: var(--tx-transition); }
.faq-item.open .faq-toggle { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.faq-item.open .faq-answer { max-height: 300px; }
.faq-answer p { padding: 0 20px 16px; font-size: 0.9rem; color: var(--tx-text-light); line-height: 1.7; }

/* === Contact === */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.contact-card { background: var(--tx-white); padding: 24px; border-radius: var(--tx-radius); box-shadow: var(--tx-shadow); margin-bottom: 20px; }
.contact-list li { padding: 6px 0; font-size: 0.9rem; color: var(--tx-text-light); }
.store-img { border-radius: var(--tx-radius-sm); margin: 12px 0; }
.contact-qr { display: flex; gap: 24px; justify-content: center; align-items: flex-start; }
.contact-form { background: var(--tx-white); padding: 28px; border-radius: var(--tx-radius); box-shadow: var(--tx-shadow); }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 6px; color: var(--tx-dark); }
.form-group input,
.form-group select,
.form-group textarea { width: 100%; padding: 10px 14px; border: 2px solid var(--tx-border); border-radius: var(--tx-radius-sm); font-size: 0.9rem; font-family: var(--tx-font); outline: none; transition: var(--tx-transition); }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--tx-pink); box-shadow: 0 0 0 3px rgba(232, 67, 147, 0.1); }

/* === Share Section === */
.share-section { padding: 40px 0; text-align: center; background: var(--tx-light); }
.share-buttons { display: flex; gap: 12px; justify-content: center; margin-top: 16px; flex-wrap: wrap; }
.share-btn-item { padding: 10px 24px; border-radius: 50px; font-size: 0.85rem; font-weight: 600; color: var(--tx-white); transition: var(--tx-transition); }
.share-btn-item.wechat { background: #07c160; }
.share-btn-item.weibo { background: #e6162d; }
.share-btn-item.douyin { background: #161823; }
.share-btn-item.bilibili { background: #00a1d6; }
.share-btn-item:hover { transform: translateY(-2px); opacity: 0.9; color: var(--tx-white); }

/* === Footer === */
.site-footer { background: var(--tx-dark); color: rgba(255,255,255,0.7); padding-top: 50px; }
.footer-inner { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 30px; border-bottom: 1px solid rgba(255,255,255,0.1); }
.footer-logo { height: 36px; width: auto; margin-bottom: 12px; filter: brightness(1.2); }
.footer-desc { font-size: 0.85rem; line-height: 1.7; }
.footer-col h4 { color: var(--tx-white); font-size: 1rem; margin-bottom: 16px; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { color: rgba(255,255,255,0.65); font-size: 0.85rem; }
.footer-col ul li a:hover { color: var(--tx-pink); }
.footer-share { padding: 20px 0; text-align: center; border-bottom: 1px solid rgba(255,255,255,0.1); }
.footer-share span { color: rgba(255,255,255,0.6); font-size: 0.85rem; }
.share-link { color: rgba(255,255,255,0.6); margin: 0 8px; font-size: 0.85rem; }
.share-link:hover { color: var(--tx-pink); }
.qr-group { display: flex; gap: 16px; }
.qr-item { text-align: center; }
.qr-item img { border-radius: 6px; margin-bottom: 6px; }
.qr-item span { display: block; font-size: 0.78rem; }
.footer-bottom { padding: 20px 0; text-align: center; }
.copyright { font-size: 0.8rem; color: rgba(255,255,255,0.5); }

/* === Breadcrumb === */
.breadcrumb { padding: 16px 0; margin-bottom: 20px; }
.breadcrumb ol { display: flex; flex-wrap: wrap; gap: 4px; }
.breadcrumb li { font-size: 0.85rem; color: var(--tx-text-light); }
.breadcrumb li::after { content: " / "; margin: 0 6px; color: var(--tx-border); }
.breadcrumb li:last-child::after { display: none; }
.breadcrumb li a { color: var(--tx-pink); }

/* === Page Main === */
.page-main { padding: 20px 0 60px; min-height: 60vh; }
.page-intro { font-size: 0.95rem; color: var(--tx-text-light); line-height: 1.8; margin-bottom: 2rem; max-width: 900px; }

/* === Video Filter === */
.video-filter { margin-bottom: 2rem; }
.filter-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }
.filter-btn { padding: 8px 20px; border: 2px solid var(--tx-border); border-radius: 50px; background: var(--tx-white); cursor: pointer; font-size: 0.85rem; font-weight: 500; color: var(--tx-text-light); transition: var(--tx-transition); }
.filter-btn:hover, .filter-btn.active { border-color: var(--tx-pink); color: var(--tx-pink); background: var(--tx-light); }

/* === Feature List === */
.feature-list { padding-left: 20px; margin: 16px 0; }
.feature-list li { position: relative; padding: 6px 0 6px 16px; font-size: 0.9rem; color: var(--tx-text-light); }
.feature-list li::before { content: ""; position: absolute; left: 0; top: 14px; width: 6px; height: 6px; background: var(--tx-pink); border-radius: 50%; }

/* === Topic List === */
.topic-list { max-width: 800px; margin: 0 auto; }
.topic-item { display: flex; gap: 16px; padding: 18px 20px; background: var(--tx-white); border-radius: var(--tx-radius-sm); margin-bottom: 10px; box-shadow: var(--tx-shadow); transition: var(--tx-transition); }
.topic-item:hover { box-shadow: var(--tx-shadow-hover); }
.topic-rank { width: 36px; height: 36px; border-radius: 8px; background: var(--tx-gray); display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 0.9rem; color: var(--tx-text-light); flex-shrink: 0; }
.topic-rank.hot { background: var(--tx-gradient); color: var(--tx-white); }
.topic-content h3 { font-size: 0.95rem; }
.topic-content p { font-size: 0.82rem; color: var(--tx-text-light); margin-bottom: 4px; }
.topic-heat { font-size: 0.78rem; color: var(--tx-pink); }

/* === Timeline === */
.timeline { max-width: 700px; margin: 0 auto; position: relative; padding-left: 40px; }
.timeline::before { content: ""; position: absolute; left: 14px; top: 0; bottom: 0; width: 2px; background: var(--tx-gradient); }
.timeline-item { position: relative; margin-bottom: 30px; }
.timeline-item::before { content: ""; position: absolute; left: -33px; top: 6px; width: 12px; height: 12px; border-radius: 50%; background: var(--tx-pink); border: 3px solid var(--tx-white); box-shadow: 0 0 0 2px var(--tx-pink); }
.timeline-date { font-size: 0.82rem; color: var(--tx-pink); font-weight: 700; margin-bottom: 4px; }
.timeline-content h3 { font-size: 1rem; }
.timeline-content p { font-size: 0.88rem; color: var(--tx-text-light); }

/* === Mission Grid === */
.mission-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.mission-item { background: var(--tx-white); padding: 28px 24px; border-radius: var(--tx-radius); box-shadow: var(--tx-shadow); text-align: center; }
.mission-item h3 { color: var(--tx-pink); }

/* === About Content Grid === */
.about-content-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; align-items: center; margin-top: 1.5rem; }
.about-image img { border-radius: var(--tx-radius); box-shadow: var(--tx-shadow); }

/* === Contact QR Display === */
.qr-display { display: flex; gap: 40px; justify-content: center; }
.qr-display .qr-item { text-align: center; }
.qr-display .qr-item img { margin: 0 auto 8px; border-radius: 8px; border: 2px solid var(--tx-border); }
.qr-display .qr-item span { display: block; font-weight: 600; color: var(--tx-dark); margin-bottom: 4px; }
.qr-display .qr-item p { font-size: 0.82rem; color: var(--tx-text-light); }

/* === Contact Form Wrap === */
.contact-form-wrap h3 { margin-bottom: 16px; }

/* === Responsive === */
@media (max-width: 1024px) {
    .card-grid.four-col { grid-template-columns: repeat(2, 1fr); }
    .expert-grid { grid-template-columns: repeat(2, 1fr); }
    .howto-steps, .guide-steps { grid-template-columns: repeat(2, 1fr); }
    .partner-wall { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .brand-content { grid-template-columns: 1fr; }
    .about-content-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    html { font-size: 15px; }
    h1 { font-size: 1.6rem; }
    h2 { font-size: 1.3rem; }
    
    .mobile-menu-btn { display: flex; }
    .main-nav { display: none; position: absolute; top: 68px; left: 0; right: 0; background: var(--tx-white); box-shadow: 0 4px 12px rgba(0,0,0,0.1); padding: 16px; z-index: 999; }
    .main-nav.active { display: block; }
    .main-nav .nav-list { flex-direction: column; }
    .main-nav .nav-list li a { padding: 12px 16px; }
    
    .hero-banner { height: 360px; }
    .hero-content h1 { font-size: 1.6rem; }
    .hero-sub { font-size: 0.9rem; }
    
    .quick-nav-grid { grid-template-columns: repeat(3, 1fr); }
    .video-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .card-grid.four-col, .card-grid.three-col { grid-template-columns: 1fr; }
    .community-grid { grid-template-columns: repeat(2, 1fr); }
    .expert-grid { grid-template-columns: 1fr; }
    .review-grid { grid-template-columns: 1fr; }
    .howto-steps, .guide-steps { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .mission-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 24px; }
    .partner-wall { grid-template-columns: repeat(2, 1fr); }
    
    section { padding: 40px 0; }
}

@media (max-width: 480px) {
    .quick-nav-grid { grid-template-columns: repeat(3, 1fr); gap: 10px; }
    .video-grid { grid-template-columns: 1fr; }
    .community-grid { grid-template-columns: 1fr; }
    .hero-banner { height: 300px; }
    .hero-content h1 { font-size: 1.3rem; }
    .brand-stats { grid-template-columns: 1fr; }
    .qr-group { flex-direction: column; align-items: center; }
    .contact-qr { flex-direction: column; align-items: center; }
    .qr-display { flex-direction: column; align-items: center; }
}