:root {
            --primary: #2B6FF2;
            --primary-light: #EBF2FF;
            --dark: #1E2A3A;
            --gray: #6E7B8C;
            --light: #FFFFFF;
            --bg: #F5F8FC;
            --border: #DCE3EC;
            --radius: 16px;
        }

        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(30px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .api-card {
            opacity: 0;
            animation: fadeInUp 0.6s ease forwards;
        }

        .cherry-blossom { position: fixed; top: -10px; z-index: 10; pointer-events: none; animation: fall linear forwards; }
        @keyframes fall { 0% { transform: translateY(-10px) rotate(0deg); opacity: 1; } 100% { transform: translateY(100vh) rotate(360deg); opacity: 0; } }

        .music-player-container { position: fixed; bottom: 100px; right: 20px; z-index: 1001; display: flex; align-items: center; transform: scale(1); transition: transform 0.3s ease; }
        .music-player { background: rgba(255,255,255,0.9); backdrop-filter: blur(10px); border-radius: 10px; box-shadow: 0 4px 20px rgba(0,0,0,0.15); padding: 10px; display: flex; align-items: center; gap: 10px; transform: translateX(0); transition: transform 0.3s ease; position: relative; z-index: 1001; max-width: 90vw; }
        .music-player-container.collapsed .music-player { transform: translateX(500px); }
        .music-player iframe { border-radius: 8px; max-width: 100%; }
        .player-controls { display: flex; flex-direction: column; gap: 8px; margin-left: 10px; z-index: 1002; }
        .control-button { background: var(--primary); color: white; border: none; border-radius: 50%; width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: all 0.3s ease; box-shadow: 0 2px 10px rgba(0,0,0,0.2); }
        .control-button:hover { background: #1A54D4; transform: scale(1.1); }
        .next-button { background: #10B981; }
        .next-button:hover { background: #059669; }
        @media (max-width: 768px) { .music-player-container { bottom: 120px; transform: scale(0.85); transform-origin: bottom right; } .music-player-container.collapsed .music-player { transform: translateX(calc(130%)); } }
        @media (max-width: 480px) { .music-player-container { bottom: 130px; transform: scale(0.75); } .music-player-container.collapsed .music-player { transform: translateX(calc(160%)); } }

        .announcement-modal {
            position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%);
            background: white; border-radius: 24px; box-shadow: 0 20px 60px rgba(0,0,0,0.1);
            padding: 32px; max-width: 500px; width: 90%; z-index: 1003;
            animation: modalPop 0.3s ease;
            max-height: 80vh; overflow-y: auto;
        }
        @keyframes modalPop { 0% { opacity: 0; transform: translate(-50%, -50%) scale(0.9); } 100% { opacity: 1; transform: translate(-50%, -50%) scale(1); } }
        .announcement-modal-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.35); z-index: 1002; display: none; }
        .announcement-modal-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 16px; }
        .announcement-modal-title { font-size: 20px; font-weight: 600; color: var(--dark); display: flex; align-items: center; gap: 10px; }
        .announcement-modal-content { color: var(--gray); line-height: 1.6; margin-bottom: 24px; }
        .announcement-modal-actions { display: flex; gap: 12px; justify-content: flex-end; }
        .announcement-modal-button { padding: 10px 20px; border-radius: 20px; font-size: 14px; font-weight: 500; cursor: pointer; border: 1px solid var(--border); background: white; transition: 0.2s; }
        .announcement-modal-button.primary { background: var(--primary); color: white; border-color: var(--primary); }
        .announcement-modal-button.primary:hover { background: #1A54D4; }

        * { margin:0; padding:0; box-sizing:border-box; font-family: system-ui, sans-serif; }
        body { background: var(--bg); color: var(--dark); }

        .topnav { background: white; border-bottom: 2px solid var(--border); position: sticky; top: 0; z-index: 1000; padding: 0 2rem; height: 64px; display: flex; align-items: center; justify-content: space-between; }
        .topnav-logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--dark); font-size: 20px; font-weight: 700; }
        .topnav-logo i { color: var(--primary); font-size: 24px; }
        .topnav-links { display: flex; gap: 2rem; }
        .topnav-links a { text-decoration: none; color: var(--gray); font-weight: 500; padding-bottom: 4px; border-bottom: 2px solid transparent; transition: 0.2s; }
        .topnav-links a:hover, .topnav-links a.active { color: var(--primary); border-bottom-color: var(--primary); }
        .topnav-search { flex: 0 0 300px; position: relative; }
        .topnav-search input { width: 100%; padding: 10px 16px 10px 40px; border: 2px solid var(--border); border-radius: 30px; background: var(--bg); font-size: 14px; }
        .topnav-search input:focus { outline: none; border-color: var(--primary); background: white; }
        .topnav-search i { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: var(--gray); }
        .topnav-user { display: flex; align-items: center; gap: 14px; }
        .btn { padding: 8px 20px; border-radius: 20px; font-weight: 500; text-decoration: none; transition: 0.2s; }
        .btn-outline { border: 2px solid var(--primary); color: var(--primary); }
        .btn-outline:hover { background: var(--primary-light); }
        .btn-primary { background: var(--primary); color: white; }
        .btn-primary:hover { background: #1A54D4; }
        .user-menu { position: relative; cursor: pointer; display: flex; align-items: center; gap: 8px; padding: 6px 12px; border-radius: 20px; }
        .user-menu:hover { background: var(--bg); }
        .user-avatar { width: 34px; height: 34px; background: var(--primary); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: white; font-weight: 600; }
        .dropdown { display: none; position: absolute; top: calc(100% + 8px); right: 0; background: white; border: 1px solid var(--border); border-radius: 16px; box-shadow: 0 10px 30px rgba(0,0,0,0.08); min-width: 180px; padding: 8px 0; }
        .user-menu:hover .dropdown { display: block; }
        .dropdown a { display: block; padding: 10px 20px; color: var(--dark); text-decoration: none; font-size: 14px; }
        .dropdown a:hover { background: var(--bg); color: var(--primary); }

        .mobile-search-btn { display: none; }
        .search-overlay { position: fixed; top:0; left:0; width:100%; height:100%; background: rgba(0,0,0,0.5); z-index: 2000; display: none; justify-content: center; align-items: flex-start; padding-top: 100px; }
        .search-popup { background: white; width: 90%; max-width: 400px; border-radius: 24px; padding: 16px 20px; display: flex; align-items: center; gap: 10px; box-shadow: 0 10px 25px rgba(0,0,0,0.2); }
        .search-popup input { flex:1; border: none; font-size: 16px; outline: none; background: transparent; }
        .search-popup .search-icon { color: var(--gray); font-size: 18px; cursor: pointer; }
        .close-search-btn { background: none; border: none; font-size: 20px; cursor: pointer; color: var(--gray); padding: 5px; }

        .mobile-nav { display: none; position: fixed; bottom: 0; left: 0; right: 0; background: white; border-top: 2px solid var(--border); z-index: 999; padding: 8px 0 12px; justify-content: space-around; }
        .mobile-nav a { flex-direction: column; align-items: center; text-decoration: none; color: var(--gray); font-size: 12px; display: flex; gap: 4px; }
        .mobile-nav a.active { color: var(--primary); }

        .hero { text-align: center; padding: 80px 2rem 50px; background: white; margin-bottom: 20px; }
        .hero h1 { font-size: 40px; font-weight: 800; margin-bottom: 12px; }
        .hero p { font-size: 18px; color: var(--gray); }
        .hero-stats { display: flex; justify-content: center; gap: 80px; margin-top: 40px; }
        .stat-item { text-align: center; display: flex; flex-direction: column; align-items: center; }
        .stat-value { font-size: 26px; font-weight: 700; color: var(--primary); word-break: break-word; max-width: 180px; text-align: center; }
        .stat-label { font-size: 13px; color: var(--gray); text-transform: uppercase; }
        .api-link { color: var(--primary); text-decoration: underline; transition: 0.2s; display: inline-block; text-align: center; }
        .api-link:hover { color: #1A54D4; text-decoration: none; }

        .ad-announcement {
            background: #EFF6FF;
            margin: 0 auto 16px;
            padding: 16px 24px;
            border-radius: var(--radius);
            border: 2px solid #BFDBFE;
            max-width: 1200px;
            display: flex;
            align-items: flex-start;
            gap: 12px;
        }
        .ad-announcement i { color: #3B82F6; font-size: 20px; margin-top: 3px; }
        .ad-announcement .ad-content { flex: 1; }
        .ad-announcement .ad-content .ad-title { font-weight: 700; color: #1E40AF; margin-bottom: 6px; font-size: 16px; }
        .ad-announcement .ad-content .ad-body { color: #1E3A8A; line-height: 1.6; }
        .ad-announcement .ad-content .ad-body a { color: #1D4ED8; font-weight: 500; text-decoration: underline; }

        .main-announcement {
            background: #FFF4E6;
            margin: 0 auto 16px;
            padding: 16px 24px;
            border-radius: var(--radius);
            border: 2px solid #FED7AA;
            max-width: 1200px;
            display: flex;
            align-items: flex-start;
            gap: 12px;
        }
        .main-announcement i { color: #F59E0B; font-size: 20px; margin-top: 3px; }
        .main-announcement .main-content { flex: 1; }
        .main-announcement .main-content .main-title { font-weight: 700; color: #9C4221; margin-bottom: 6px; font-size: 16px; }
        .main-announcement .main-content .main-body { color: #7C2D12; line-height: 1.6; }
        .main-announcement .main-content .main-body a { color: #B45309; font-weight: 500; text-decoration: underline; }

        .sub-announcements-section {
            margin: 0 auto 40px;
            max-width: 1200px;
        }
        .sub-announcement-item {
            padding: 10px 16px;
            background: #F9FAFB;
            border-left: 3px solid #D1D5DB;
            margin-bottom: 8px;
            border-radius: 6px;
            font-size: 14px;
            color: #4B5563;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sub-announcement-item i { color: #9CA3AF; font-size: 6px; }
        .sub-announcement-item a { color: #6366F1; text-decoration: underline; }

        .container { max-width: 1200px; margin: 0 auto; padding: 0 2rem 80px; }
        .section-title { font-size: 28px; font-weight: 700; text-align: center; margin-bottom: 36px; }

        .category-nav {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            margin-bottom: 40px;
        }
        .category-btn {
            padding: 10px 20px;
            border-radius: 30px;
            background: white;
            border: 2px solid var(--border);
            color: var(--gray);
            font-weight: 500;
            text-decoration: none;
            transition: 0.2s;
            font-size: 15px;
            cursor: pointer;
            display: inline-block;
        }
        .category-btn:hover, .category-btn.active {
            background: var(--primary);
            color: white;
            border-color: var(--primary);
        }

        .api-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
        @media (max-width: 1200px) { .api-grid { grid-template-columns: repeat(3, 1fr); } }
        @media (max-width: 900px) { .api-grid { grid-template-columns: repeat(2, 1fr); } }
        .api-card { background: white; border: 2px solid var(--border); border-radius: var(--radius); padding: 24px; transition: 0.2s; scroll-margin-top: 80px; }
        .api-card:hover { border-color: var(--primary); transform: translateY(-4px); box-shadow: 0 10px 24px rgba(43,111,242,0.1); }
        .api-card-header { display: flex; justify-content: space-between; margin-bottom: 12px; }
        .api-name { font-size: 20px; font-weight: 600; }
        .status-badge { padding: 4px 12px; border-radius: 20px; font-size: 12px; font-weight: 500; }
        .status-green { background: #D1FAE5; color: #059669; }
        .status-red { background: #FEE2E2; color: #DC2626; }
        .status-yellow { background: #FEF3C7; color: #D97706; }
        .api-tags { display: flex; gap: 8px; margin: 12px 0; flex-wrap: wrap; }
        .api-tag { padding: 4px 12px; border-radius: 16px; font-size: 13px; }
        .api-tag.premium { background: #FEE2E2; color: #DC2626; }
        .api-tag.private { background: #EBF2FF; color: #2B6FF2; }
        .api-tag.free { background: #D1FAE5; color: #059669; }
        .btn-details { display: inline-block; background: var(--primary); color: white; padding: 8px 20px; border-radius: 20px; text-decoration: none; font-size: 14px; margin-top: 16px; }

        .bottom-line {
            text-align: center;
            padding: 30px;
            color: #9CA3AF;
            font-size: 15px;
            display: none;
        }

        .no-result {
            text-align: center;
            padding: 40px;
            color: #9CA3AF;
            font-size: 16px;
            background: #F9FAFB;
            border-radius: 12px;
            border: 1px solid #E5E7EB;
            margin: 20px 0;
        }

        .friend-links { background: white; padding: 60px 2rem; margin-top: 60px; border-top: 2px solid var(--border); }
        .friend-links-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 20px; max-width: 1200px; margin: 0 auto; }
        .friend-link-card { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; text-decoration: none; color: var(--dark); }
        .friend-link-card:hover { border-color: var(--primary); }

        .footer { background: var(--dark); color: #B0BEC5; text-align: center; padding: 32px 32px 80px; margin-top: 80px; }

        @media (max-width: 768px) {
            .topnav-links, .topnav-search, .topnav-user { display: none; }
            .topnav { padding: 0 1rem; justify-content: flex-start; }
            .mobile-search-btn {
                display: flex;
                align-items: center;
                justify-content: center;
                background: none;
                border: none;
                font-size: 22px;
                color: var(--dark);
                cursor: pointer;
                position: absolute;
                right: 1rem;
                top: 50%;
                transform: translateY(-50%);
                z-index: 1001;
            }
            .mobile-nav { display: flex; }
            .hero { padding: 50px 1.5rem 30px; }
            .hero h1 { font-size: 30px; }
            .hero-stats { flex-direction: column; gap: 24px; }
            .stat-value { font-size: 22px; }
            .stat-label { font-size: 12px; }
            .container { padding: 0 1rem 100px; }
            .api-grid { grid-template-columns: 1fr; }
            .category-btn { font-size: 14px; padding: 8px 16px; }
            .footer { padding-bottom: 100px; }
        }