:root {
    --primary: #4361ee;
    --primary-dark: #3a56d4;
    --primary-light: rgba(67,97,238,0.08);
    --primary-gradient: linear-gradient(135deg, #4361ee, #7209b7);
    --secondary: #7209b7;
    --accent: #f72585;
    --accent2: #4cc9f0;
    --accent3: #f9c74f;
    --accent4: #06d6a0;
    --accent5: #fb5607;
    --bg: #f0f2f8;
    --bg-card: #ffffff;
    --bg-card-hover: #f0f4ff;
    --border-color: #e2e5ef;
    --border-light: #eceff5;
    --text-primary: #1a1a2e;
    --text-secondary: #6c7a92;
    --text-muted: #9aa8b9;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
    --shadow: 0 2px 12px rgba(0,0,0,0.06);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.08);
    --shadow-glow: 0 4px 20px rgba(67,97,238,0.2);
    --radius: 16px;
    --radius-sm: 10px;
    --radius-xs: 6px;
    --rainbow: linear-gradient(90deg, #f72585, #fb5607, #f9c74f, #06d6a0, #4cc9f0, #4361ee, #7209b7);
}

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

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    padding: 0 32px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s;
}

.navbar.scrolled {
    background: rgba(255,255,255,0.97);
    box-shadow: var(--shadow);
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-primary);
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -0.3px;
}

.navbar-brand img, .navbar-brand .default-logo {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    object-fit: contain;
}

.navbar-brand .default-logo {
    background: var(--rainbow);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: #fff;
}

.navbar-brand span {
    color: #000;
    font-weight: 700;
    font-size: 17px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
    list-style: none;
}

.nav-links a {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: all 0.25s;
    font-size: 14px;
    font-weight: 500;
}

.nav-links a:hover {
    color: var(--primary);
    background: var(--primary-light);
}

.nav-links a img {
    width: 20px;
    height: 20px;
    border-radius: 4px;
    object-fit: contain;
}

/* Hero Section */
.hero {
    padding: 100px 0 40px;
    text-align: center;
    position: relative;
    background: linear-gradient(135deg, #f8f9ff 0%, #f0f2ff 30%, #fef0f5 60%, #f5f0ff 100%);
    overflow: hidden;
}

.hero::after {
    content: '';
    position: absolute;
    top: -200px;
    left: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(67,97,238,0.04) 0%, transparent 70%);
    pointer-events: none;
}

.hero::before {
    content: '';
    position: absolute;
    bottom: -300px;
    right: -200px;
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, rgba(247,37,133,0.04) 0%, transparent 70%);
    pointer-events: none;
}

/* Carousel */
.carousel-container {
    position: relative;
    max-width: 900px;
    margin: 0 auto 28px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.carousel-track {
    display: flex;
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    min-height: 280px;
}

.carousel-slide {
    min-width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1a73e8, #6c5ce7);
    background-size: cover;
    background-position: center;
    padding: 60px 40px;
    position: relative;
    min-height: 280px;
}

.carousel-slide::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.15);
    pointer-events: none;
}

.carousel-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: #fff;
    max-width: 600px;
}

.carousel-title {
    font-size: clamp(24px, 4vw, 40px);
    font-weight: 800;
    margin-bottom: 8px;
    letter-spacing: -0.5px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.15);
}

.carousel-subtitle {
    font-size: clamp(14px, 1.6vw, 18px);
    color: rgba(255,255,255,0.85);
    margin-bottom: 20px;
    line-height: 1.5;
}

.carousel-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 28px;
    background: rgba(255,255,255,0.2);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.3);
    color: #fff;
    text-decoration: none;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s;
}

.carousel-btn:hover {
    background: rgba(255,255,255,0.3);
    transform: translateY(-1px);
}

/* Carousel Dots */
.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    position: absolute;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.carousel-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255,255,255,0.4);
    cursor: pointer;
    transition: all 0.3s;
}

.carousel-dot.active {
    width: 24px;
    border-radius: 4px;
    background: #fff;
}

/* Carousel Arrows */
.carousel-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 2;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
    color: #fff;
    font-size: 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
    opacity: 0;
}

.carousel-container:hover .carousel-arrow {
    opacity: 1;
}

.carousel-arrow:hover {
    background: rgba(255,255,255,0.25);
}

.carousel-arrow-left { left: 12px; }
.carousel-arrow-right { right: 12px; }

/* Search */
.search-box {
    max-width: 480px;
    margin: 0 auto;
    position: relative;
}

.search-box input {
    width: 100%;
    padding: 14px 20px 14px 48px;
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 15px;
    outline: none;
    transition: all 0.3s;
    box-shadow: var(--shadow-sm);
}

.search-box input:focus {
    border-color: transparent;
    box-shadow: 0 0 0 3px rgba(67,97,238,0.08), 0 0 0 6px rgba(247,37,133,0.04);
    background: linear-gradient(135deg, #fff, #f8f9ff);
}

.search-box input::placeholder { color: var(--text-muted); }

.search-box .search-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 18px;
    pointer-events: none;
}

.category-sidebar {
    padding: 0 24px;
}

.category-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    margin-bottom: 32px;
}

.category-tab {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 9px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.25s;
    font-size: 14px;
    font-weight: 500;
    user-select: none;
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

.category-tab::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 50px;
    opacity: 0;
    transition: opacity 0.25s;
}

.category-tab:hover {
    border-color: transparent;
    color: #fff;
    background: var(--primary-gradient);
    box-shadow: 0 4px 15px rgba(67,97,238,0.2);
    transform: translateY(-1px);
}

.category-tab.active {
    background: var(--rainbow);
    border-color: transparent;
    color: #fff;
    box-shadow: 0 4px 20px rgba(247,37,133,0.25);
}

.category-tab i { font-size: 14px; color: var(--text-secondary); }

.category-tab:hover i, .category-tab.active i { color: #fff; }

.category-tab img {
    width: 18px;
    height: 18px;
    border-radius: 4px;
    object-fit: contain;
}

/* Items Grid */
.content-wrap {
    max-width: 1200px;
    margin: 0 auto;
}

.items-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    padding: 0 24px 100px;
}

.item-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 24px 20px;
    text-align: center;
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
}

.item-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--rainbow);
    opacity: 0;
    transition: opacity 0.3s;
}

.item-card:hover::before {
    opacity: 1;
}

.item-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(67,97,238,0.12), 0 8px 30px rgba(247,37,133,0.06);
    border-color: rgba(67,97,238,0.12);
}

.item-card .icon-wrap {
    width: 56px;
    height: 56px;
    margin: 0 auto 14px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-light), rgba(247,37,133,0.06));
    transition: all 0.3s;
    overflow: hidden;
}

.item-card:nth-child(3n+1) .icon-wrap {
    background: linear-gradient(135deg, rgba(67,97,238,0.1), rgba(114,9,183,0.06));
}
.item-card:nth-child(3n+2) .icon-wrap {
    background: linear-gradient(135deg, rgba(247,37,133,0.1), rgba(251,86,7,0.06));
}
.item-card:nth-child(3n+3) .icon-wrap {
    background: linear-gradient(135deg, rgba(6,214,160,0.1), rgba(76,201,240,0.06));
}

.item-card:nth-child(3n+1):hover { border-color: rgba(67,97,238,0.15); }
.item-card:nth-child(3n+2):hover { border-color: rgba(247,37,133,0.15); }
.item-card:nth-child(3n+3):hover { border-color: rgba(6,214,160,0.15); }

.item-card:hover .icon-wrap {
    transform: scale(1.1) rotate(-3deg);
    box-shadow: 0 8px 25px rgba(67,97,238,0.12);
}

.item-card:nth-child(3n+1):hover .icon-wrap { box-shadow: 0 8px 25px rgba(67,97,238,0.15); }
.item-card:nth-child(3n+2):hover .icon-wrap { box-shadow: 0 8px 25px rgba(247,37,133,0.12); }
.item-card:nth-child(3n+3):hover .icon-wrap { box-shadow: 0 8px 25px rgba(6,214,160,0.12); }

.item-card .icon-wrap .default-icon {
    filter: drop-shadow(0 1px 2px rgba(0,0,0,0.05));
}

.item-card .icon-wrap img {
    width: 30px;
    height: 30px;
    object-fit: contain;
}

.item-card:nth-child(3n+1) .icon-wrap .default-icon { color: #4361ee; }
.item-card:nth-child(3n+2) .icon-wrap .default-icon { color: #f72585; }
.item-card:nth-child(3n+3) .icon-wrap .default-icon { color: #06d6a0; }

.item-card:nth-child(6n+4) .icon-wrap .default-icon { color: #f9c74f; }
.item-card:nth-child(6n+5) .icon-wrap .default-icon { color: #7209b7; }
.item-card:nth-child(6n+6) .icon-wrap .default-icon { color: #fb5607; }

.item-card .icon-wrap .default-icon {
    font-size: 24px;
    transition: all 0.3s;
}

.item-card h3 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.item-card p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Detail overlay */
.item-detail-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.item-detail-overlay.active { display: flex; }

.item-detail-card {
    background: var(--bg-card);
    border-radius: 24px;
    padding: 40px 36px;
    max-width: 400px;
    width: 100%;
    text-align: center;
    animation: modalIn 0.3s ease;
    box-shadow: 0 20px 60px rgba(0,0,0,0.12);
}

@keyframes modalIn {
    from { transform: scale(0.92) translateY(16px); opacity: 0; }
    to { transform: scale(1) translateY(0); opacity: 1; }
}

.item-detail-card .icon-wrap {
    width: 72px;
    height: 72px;
    margin: 0 auto 16px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(67,97,238,0.1), rgba(247,37,133,0.06));
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(67,97,238,0.08);
}

.item-detail-card .icon-wrap img { width: 40px; height: 40px; object-fit: contain; }
.item-detail-card .icon-wrap .default-icon { font-size: 32px; color: var(--primary); }
.item-detail-card h2 { font-size: 22px; margin-bottom: 8px; }
.item-detail-card p { color: var(--text-secondary); margin-bottom: 24px; line-height: 1.6; }

.item-detail-card .btn-visit {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 36px;
    background: var(--rainbow);
    color: #fff;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s;
    box-shadow: 0 4px 20px rgba(247,37,133,0.2);
    background-size: 200% auto;
}

.item-detail-card .btn-visit:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 8px 30px rgba(67,97,238,0.25);
    background-position: right center;
}

.item-detail-card .btn-close {
    position: absolute;
    top: 16px;
    right: 20px;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 28px;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 8px;
    transition: all 0.2s;
    line-height: 1;
}

.item-detail-card .btn-close:hover {
    background: var(--bg);
    color: var(--text-primary);
}

/* Desktop Footer */
.footer {
    display: none;
}

/* Bottom Tab Bar - Desktop: macOS pill style */
.bottom-tab-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    width: auto;
    height: auto;
    padding: 6px 10px;
    gap: 2px;
    background: rgba(255,255,255,0.65);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-radius: 34px;
    border: 1px solid rgba(255,255,255,0.4);
    box-shadow: 0 4px 24px rgba(0,0,0,0.08);
    z-index: 1000;
}

body { padding-bottom: 80px; }

@media (max-width: 768px) {
    body { padding-bottom: 70px; }

    .navbar {
        padding: 0 16px;
        height: 56px;
    }
    .nav-links { display: none; }

    .hero { padding: 80px 0 36px; }

    .carousel-container {
        border-radius: 16px;
        margin: 0 12px 16px;
        box-shadow: var(--shadow);
        max-width: none;
    }
    .carousel-slide {
        min-height: 180px;
        padding: 36px 28px 32px;
        border-radius: 16px;
    }
    .carousel-slide::before {
        background: linear-gradient(180deg, rgba(0,0,0,0.02) 0%, rgba(0,0,0,0.3) 100%);
        border-radius: 16px;
    }
    .carousel-arrow { display: none; }
    .carousel-track { min-height: 180px; }

    .carousel-title {
        font-size: 20px;
        font-weight: 700;
        margin-bottom: 4px;
        text-shadow: 0 1px 6px rgba(0,0,0,0.1);
    }

    .carousel-subtitle {
        font-size: 13px;
        margin-bottom: 14px;
        color: rgba(255,255,255,0.88);
    }

    .carousel-btn {
        padding: 7px 20px;
        font-size: 12px;
        background: rgba(255,255,255,0.15);
        backdrop-filter: blur(6px);
        border: 1px solid rgba(255,255,255,0.15);
    }

    .carousel-dots {
        bottom: 10px;
        gap: 5px;
    }

    .carousel-dot {
        width: 5px;
        height: 5px;
        background: rgba(255,255,255,0.3);
        transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .carousel-dot.active {
        width: 16px;
        height: 5px;
        background: #fff;
        box-shadow: 0 0 6px rgba(255,255,255,0.3);
    }

    .content-wrap {
        display: flex;
        gap: 0;
        padding: 0 8px;
    }

    .category-sidebar {
        width: 72px;
        flex-shrink: 0;
        padding: 4px 0 0 0;
    }

    .category-tabs {
        display: flex;
        flex-direction: column;
        gap: 6px;
        margin-bottom: 0;
        padding: 0;
    }

    .category-tab {
        flex-direction: column;
        gap: 3px;
        padding: 8px 4px;
        border-radius: 10px;
        font-size: 10px;
        text-align: center;
    }

    .category-tab i { font-size: 18px; }
    .category-tab img { width: 18px; height: 18px; border-radius: 4px; }
    .category-tab:hover {
        background: var(--bg-card);
        border-color: transparent;
        transform: none;
        box-shadow: none;
    }
    .category-tab.active {
        border-color: transparent;
        box-shadow: none;
    }

    .items-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
        padding: 4px 0 80px 8px;
        flex: 1;
        min-width: 0;
        margin: 0;
        max-width: none;
        align-content: start;
    }
    .item-card { padding: 8px 6px; min-height: 0; }
    .item-card .icon-wrap { width: 32px; height: 32px; margin: 0 auto 4px; border-radius: 8px; }
    .item-card .icon-wrap img { width: 18px; height: 18px; }
    .item-card .icon-wrap .default-icon { font-size: 14px; }
    .item-card h3 { font-size: 11px; margin-bottom: 1px; font-weight: 500; }
    .item-card p {
        display: -webkit-box;
        -webkit-box-orient: vertical;
        -webkit-line-clamp: 1;
        font-size: 9px;
        line-height: 1.2;
        margin: 0;
        overflow: hidden;
        color: var(--text-muted);
    }

    /* Mobile: full-width grid tab bar */
    .bottom-tab-bar {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        position: fixed;
        bottom: 0; left: 0; right: 0;
        width: 100%;
        height: 62px;
        background: rgba(255,255,255,0.96);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-top: 1px solid var(--border-color);
        z-index: 1000;
        padding: 0;
        box-shadow: 0 -2px 20px rgba(0,0,0,0.06);
        align-items: stretch;
        border-radius: 0;
        transform: none;
        gap: 0;
    }

    .bottom-tab-item {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        text-decoration: none;
        color: var(--text-muted);
        font-size: 10px;
        gap: 2px;
        transition: all 0.2s;
        -webkit-tap-highlight-color: transparent;
        padding: 2px 0;
        border-radius: 0;
    }

    .bottom-tab-item i {
        font-size: 20px;
        transition: all 0.2s;
    }

    .bottom-tab-item span {
        display: block;
        font-weight: 500;
        letter-spacing: 0;
        font-size: 10px;
    }

    .bottom-tab-item:nth-child(1) i { color: #4361ee; }
    .bottom-tab-item:nth-child(2) i { color: #f72585; }
    .bottom-tab-item:nth-child(3) i { color: #06d6a0; }
    .bottom-tab-item:nth-child(4) i { color: #7209b7; }

    .bottom-tab-stat span {
        font-size: 9px;
        letter-spacing: -0.3px;
        white-space: nowrap;
    }

    .bottom-tab-item:active {
        transform: scale(0.92);
    }

    .bottom-tab-item.active i {
        transform: scale(1.08);
    }
}

/* Announcement Bar */
.announcement-bar {
    display: flex;
    align-items: center;
    gap: 14px;
    max-width: 1000px;
    margin: 32px auto 24px;
    padding: 18px 28px;
    background: linear-gradient(135deg, rgba(67,97,238,0.04), rgba(114,9,183,0.04));
    border: 1px solid rgba(67,97,238,0.1);
    border-radius: 12px;
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.6;
    overflow: hidden;
}
.announcement-icon {
    font-size: 28px;
    color: var(--primary);
    flex-shrink: 0;
    animation: announcementSwing 2s ease-in-out infinite;
}
@keyframes announcementSwing {
    0%, 100% { transform: rotate(0deg); }
    25% { transform: rotate(-15deg); }
    75% { transform: rotate(15deg); }
}
.announcement-track {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    white-space: nowrap;
}
.announcement-inner {
    display: inline-flex;
    animation-name: announcementMarquee;
    animation-timing-function: linear;
    animation-iteration-count: infinite;
    will-change: transform;
}
.announcement-bar:hover .announcement-inner {
    animation-play-state: paused;
}
.announcement-text {
    flex-shrink: 0;
    padding-right: 64px;
}
@keyframes announcementMarquee {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}

@media (max-width: 768px) {
    .announcement-bar {
        margin: 10px 12px 0;
        padding: 8px 12px;
        font-size: 13px;
    }
    .announcement-icon { font-size: 16px; }
}

@media (min-width: 769px) {
    .bottom-tab-item {
        display: flex;
        align-items: center;
        justify-content: center;
        text-decoration: none;
        color: var(--text-muted);
        padding: 8px 14px;
        border-radius: 20px;
        transition: all 0.2s;
        -webkit-tap-highlight-color: transparent;
    }
    .bottom-tab-item i { font-size: 18px; transition: all 0.2s; }
    .bottom-tab-item span {
        display: inline-block;
        margin-left: 7px;
        font-size: 13px;
        font-weight: 500;
        white-space: nowrap;
    }
    .bottom-tab-item.bottom-tab-stat span {
        font-size: 13px;
        color: var(--text-secondary);
    }
    .bottom-tab-item:hover { background: rgba(67,97,238,0.08); color: var(--primary); }
    .bottom-tab-item:nth-child(1) i { color: #4361ee; }
    .bottom-tab-item:nth-child(2) i { color: #f72585; }
    .bottom-tab-item:nth-child(3) i { color: #06d6a0; }
    .bottom-tab-item:nth-child(4) i { color: #7209b7; }
    .bottom-tab-item:active { transform: scale(0.92); }
    .bottom-tab-item.active i { transform: scale(1.08); }
}

/* Empty state */
.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 24px;
    color: var(--text-muted);
}

.empty-state i { font-size: 48px; margin-bottom: 16px; color: var(--text-muted); }

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Smooth scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }