/* ===== Reset & Base ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: -apple-system, "Microsoft YaHei", "PingFang SC", sans-serif;
    background: #f5f5f7;
    color: #333;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}
main { flex: 1; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* ===== Colors ===== */
:root {
    --primary: #1a1a2e;
    --primary-light: #16213e;
    --accent: #f0c040;
    --accent-dark: #d4a832;
    --bg: #f5f5f7;
    --white: #fff;
    --text: #333;
    --text-light: #999;
    --border: #e8e8ed;
    --danger: #e74c3c;
    --success: #27ae60;
}

/* ===== Top Bar ===== */
.top-bar {
    background: var(--primary);
    color: var(--white);
    text-align: center;
    padding: 6px 0;
    font-size: 12px;
    letter-spacing: 1px;
}
.top-bar span { color: var(--accent); }

/* ===== Header / Nav ===== */
.header {
    background: var(--white);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 1000;
}
.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 14px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--primary);
}
.logo .icon { font-size: 32px; }
.logo .text h1 { font-size: 18px; font-weight: 700; }
.logo .text p { font-size: 11px; color: var(--text-light); }

.nav-links {
    display: flex;
    gap: 6px;
    list-style: none;
}
.nav-links a {
    text-decoration: none;
    color: #555;
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 500;
    border-radius: 8px;
    transition: all 0.2s;
}
.nav-links a:hover, .nav-links a.active {
    color: var(--primary);
    background: #f0f0f5;
}
.nav-btn {
    background: var(--primary);
    color: var(--white);
    padding: 10px 24px;
    border-radius: 25px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
    transition: background 0.2s;
}
.nav-btn:hover { background: var(--primary-light); }

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 4px;
    background: none;
    border: none;
}
.hamburger span {
    width: 24px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
    transition: all 0.3s;
}

/* ===== Container ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section { padding: 60px 0; }

.section-title {
    text-align: center;
    margin-bottom: 40px;
}
.section-title h2 {
    font-size: 28px;
    color: var(--primary);
    font-weight: 700;
}
.section-title p {
    font-size: 14px;
    color: var(--text-light);
    margin-top: 8px;
}
.section-title .line {
    width: 50px;
    height: 3px;
    background: var(--accent);
    margin: 12px auto;
}

/* ===== Page Header (for sub pages) ===== */
.page-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 50%, #0f3460 100%);
    color: var(--white);
    text-align: center;
    padding: 60px 20px;
}
.page-header h1 { font-size: 36px; font-weight: 800; margin-bottom: 8px; }
.page-header p { font-size: 15px; opacity: 0.8; }

/* ===== Footer ===== */
.footer {
    background: #111;
    color: rgba(255,255,255,0.5);
    text-align: center;
    padding: 30px;
    font-size: 13px;
}

/* ===== Buttons ===== */
.btn-primary {
    display: inline-block;
    background: var(--accent);
    color: var(--primary);
    padding: 14px 36px;
    border-radius: 30px;
    font-size: 15px;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    text-align: center;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(240,192,64,0.3); }

.btn-secondary {
    display: inline-block;
    border: 2px solid rgba(255,255,255,0.3);
    color: var(--white);
    padding: 14px 36px;
    border-radius: 30px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    background: none;
    cursor: pointer;
    text-align: center;
}
.btn-secondary:hover { border-color: var(--white); }

.btn-outline {
    display: inline-block;
    border: 1px solid var(--primary);
    color: var(--primary);
    padding: 10px 28px;
    border-radius: 25px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
    background: none;
    cursor: pointer;
}
.btn-outline:hover { background: var(--primary); color: var(--white); }

.btn-sm {
    display: inline-block;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
}

/* ===== Form Styles ===== */
.form-group { margin-bottom: 20px; }
.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text);
}
.form-group label .required { color: var(--danger); }
.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #ddd;
    border-radius: 10px;
    font-size: 14px;
    outline: none;
    transition: border 0.2s;
    font-family: inherit;
    background: var(--white);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(240,192,64,0.1);
}
.form-group textarea { min-height: 100px; resize: vertical; }
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
.form-submit {
    width: 100%;
    padding: 14px;
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s;
}
.form-submit:hover { background: var(--primary-light); }
.form-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* ===== Breadcrumb ===== */
.breadcrumb {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 20px;
    font-size: 13px;
    color: var(--text-light);
}
.breadcrumb a { color: var(--primary); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span { color: var(--text-light); }

/* ===== Toast / Notification ===== */
.toast {
    position: fixed;
    top: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(-100px);
    padding: 16px 28px;
    border-radius: 12px;
    color: var(--white);
    font-size: 14px;
    font-weight: 500;
    z-index: 9999;
    transition: transform 0.4s ease;
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
    max-width: 90%;
}
.toast.show { transform: translateX(-50%) translateY(0); }
.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }
.toast.info { background: var(--primary); }

/* ===== Loading Spinner ===== */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: var(--white);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== Swiper overrides ===== */
.banner-swiper { width: 100%; height: 420px; }
.banner-swiper .swiper-slide { display: flex; align-items: center; justify-content: center; text-align: center; color: #fff; padding: 80px 20px; position: relative; overflow: hidden; }
.banner-swiper .swiper-slide::before { content: attr(data-emoji); position: absolute; font-size: 200px; opacity: 0.05; top: -30px; right: -30px; }
.banner-swiper .swiper-slide .banner-content { position: relative; z-index: 2; max-width: 800px; }
.banner-swiper .swiper-slide h1 { font-size: 40px; font-weight: 800; margin-bottom: 16px; letter-spacing: 2px; }
.banner-swiper .swiper-slide p { font-size: 16px; opacity: 0.85; margin-bottom: 30px; line-height: 1.6; }
.banner-swiper .swiper-slide .btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.banner-swiper .swiper-pagination-bullet { background: rgba(255,255,255,0.5); opacity: 1; width: 10px; height: 10px; }
.banner-swiper .swiper-pagination-bullet-active { background: var(--accent); width: 24px; border-radius: 5px; }

.product-swiper { width: 100%; padding: 10px 0 40px 0; }
.product-swiper .swiper-slide { height: auto; }
.product-swiper .swiper-button-next, .product-swiper .swiper-button-prev { width: 44px; height: 44px; background: rgba(255,255,255,0.95); border-radius: 50%; box-shadow: 0 2px 12px rgba(0,0,0,0.1); color: var(--primary); }
.product-swiper .swiper-button-next::after, .product-swiper .swiper-button-prev::after { font-size: 16px; font-weight: 700; }
.product-swiper .swiper-button-next:hover, .product-swiper .swiper-button-prev:hover { background: var(--accent); color: var(--primary); }
.product-swiper .swiper-pagination-bullet { background: #ccc; opacity: 1; }
.product-swiper .swiper-pagination-bullet-active { background: var(--primary); }

/* ===== Product Card ===== */
.product-card {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 2px 16px rgba(0,0,0,0.04);
    transition: transform 0.3s, box-shadow 0.3s;
    height: 100%;
}
.product-card:hover { transform: translateY(-4px); box-shadow: 0 8px 30px rgba(0,0,0,0.08); }
.product-card .img {
    height: 220px;
    background: linear-gradient(135deg, #f5f5f7, #eee);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 70px;
    position: relative;
}
.product-card .info { padding: 16px; }
.product-card .info .tag {
    display: inline-block;
    padding: 2px 10px;
    background: #fef3e2;
    color: #c0761a;
    border-radius: 10px;
    font-size: 11px;
    margin-bottom: 8px;
}
.product-card .info h3 { font-size: 16px; margin-bottom: 6px; }
.product-card .info .desc { font-size: 13px; color: var(--text-light); margin-bottom: 10px; }
.product-card .info .bottom { display: flex; justify-content: space-between; align-items: center; }
.product-card .info .price {
    font-size: 18px;
    font-weight: 700;
    color: var(--danger);
}
.product-card .info .price span { font-size: 13px; color: var(--text-light); font-weight: 400; }
.product-card .info .inquiry {
    background: var(--primary);
    color: var(--white);
    padding: 6px 18px;
    border-radius: 20px;
    font-size: 13px;
    text-decoration: none;
    display: inline-block;
    transition: background 0.2s;
}
.product-card .info .inquiry:hover { background: var(--primary-light); }
.product-card a { text-decoration: none; color: inherit; display: block; height: 100%; }

/* ===== Stats Bar ===== */
.stats-bar {
    background: var(--white);
    border-bottom: 1px solid var(--border);
}
.stats-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-around;
    padding: 30px 20px;
}
.stat-item { text-align: center; }
.stat-item .num { font-size: 32px; font-weight: 800; color: var(--primary); }
.stat-item .label { font-size: 13px; color: var(--text-light); margin-top: 4px; }

/* ===== Review Card ===== */
.review-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}
.review-card {
    background: var(--white);
    padding: 24px;
    border-radius: 16px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}
.review-card .row { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.review-card .avatar { width: 44px; height: 44px; border-radius: 50%; background: #f0f0f0; display: flex; align-items: center; justify-content: center; font-size: 20px; }
.review-card .name { font-size: 15px; font-weight: 600; }
.review-card .company { font-size: 12px; color: var(--text-light); }
.review-card .stars { color: var(--accent); font-size: 14px; margin-bottom: 8px; }
.review-card .text { font-size: 14px; color: #555; line-height: 1.6; }

/* ===== Process Steps ===== */
.process-flow {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}
.process-step {
    flex: 1;
    min-width: 180px;
    max-width: 260px;
    text-align: center;
    padding: 30px 20px;
    background: var(--white);
    border-radius: 16px;
    position: relative;
    border: 1px solid #eee;
    transition: all 0.3s;
}
.process-step:hover {
    border-color: var(--accent);
    box-shadow: 0 4px 20px rgba(240,192,64,0.1);
}
.process-step .step-icon { font-size: 36px; margin-bottom: 12px; }
.process-step .step-num {
    width: 28px; height: 28px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    margin: 0 auto 8px;
}
.process-step h4 { font-size: 15px; margin-bottom: 6px; }
.process-step p { font-size: 13px; color: var(--text-light); }

/* ===== Inquiry Form Card ===== */
.inquiry-form-card {
    max-width: 720px;
    margin: 0 auto;
    background: var(--white);
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.04);
}
.inquiry-form-card .file-upload {
    border: 2px dashed #ddd;
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    color: var(--text-light);
    cursor: pointer;
    transition: all 0.3s;
}
.inquiry-form-card .file-upload:hover { border-color: var(--accent); color: var(--accent); }
.inquiry-form-card .file-upload .icon { font-size: 28px; }
.inquiry-form-card .file-upload p { font-size: 13px; margin-top: 6px; }

/* ===== Contact Section ===== */
.contact-section { background: var(--primary); color: var(--white); }
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}
.contact-info h3 { font-size: 22px; margin-bottom: 16px; }
.contact-info p { font-size: 14px; opacity: 0.8; margin-bottom: 8px; }
.contact-info .big { font-size: 24px; color: var(--accent); font-weight: 700; }
.contact-form input, .contact-form textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 10px;
    background: rgba(255,255,255,0.08);
    color: var(--white);
    font-size: 14px;
    outline: none;
    margin-bottom: 12px;
    font-family: inherit;
}
.contact-form input::placeholder, .contact-form textarea::placeholder { color: rgba(255,255,255,0.4); }
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--accent); }
.contact-form textarea { height: 100px; resize: vertical; }
.contact-form button {
    background: var(--accent);
    color: var(--primary);
    border: none;
    padding: 12px 30px;
    border-radius: 25px;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
}
.contact-form button:hover { background: var(--accent-dark); }

/* ===== Product Detail Page ===== */
.product-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    padding: 40px 0;
}
.product-detail .gallery-main {
    background: var(--white);
    border-radius: 20px;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 120px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.04);
    position: relative;
    overflow: hidden;
}
.product-detail .info-panel h2 { font-size: 28px; margin-bottom: 8px; }
.product-detail .info-panel .price-large { font-size: 32px; font-weight: 800; color: var(--danger); margin-bottom: 4px; }
.product-detail .info-panel .price-label { font-size: 14px; color: var(--text-light); margin-bottom: 20px; }
.product-detail .info-panel .desc-text { font-size: 14px; color: #555; line-height: 1.8; margin-bottom: 24px; }

.spec-table { width: 100%; border-collapse: collapse; margin-bottom: 24px; }
.spec-table th, .spec-table td {
    padding: 12px 16px;
    border-bottom: 1px solid #eee;
    font-size: 14px;
    text-align: left;
}
.spec-table th {
    background: #f8f8fa;
    font-weight: 600;
    width: 120px;
    color: var(--text-light);
}

/* ===== Product Grid (listing page) ===== */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 24px;
}
.category-tabs {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 30px;
}
.category-tab {
    padding: 8px 22px;
    border: 1px solid #ddd;
    border-radius: 20px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
    background: var(--white);
    color: #555;
}
.category-tab:hover { border-color: var(--accent); color: var(--accent); }
.category-tab.active { background: var(--primary); color: var(--white); border-color: var(--primary); }

/* ===== About Page ===== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}
.about-gallery {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}
.about-gallery .photo {
    background: linear-gradient(135deg, var(--primary) 0%, #0f3460 100%);
    border-radius: 14px;
    aspect-ratio: 4/3;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: rgba(255,255,255,0.2);
    font-size: 36px;
    position: relative;
    overflow: hidden;
    transition: all 0.3s;
    cursor: pointer;
}
.about-gallery .photo:hover { transform: scale(1.03); box-shadow: 0 8px 24px rgba(0,0,0,0.15); }
.about-gallery .photo img { width: 100%; height: 100%; object-fit: cover; border-radius: 14px; }
.about-gallery .photo .photo-label {
    position: absolute;
    bottom: 12px; left: 12px;
    font-size: 13px;
    color: #fff;
    background: rgba(0,0,0,0.5);
    padding: 4px 12px;
    border-radius: 6px;
}
.about-gallery .photo-wide { grid-column: span 2; }
.about-text h3 { font-size: 26px; color: var(--primary); margin-bottom: 8px; }
.about-text .subtitle { font-size: 14px; color: var(--accent); font-weight: 600; margin-bottom: 20px; }
.about-text p { font-size: 14px; color: #555; line-height: 1.8; margin-bottom: 16px; }
.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 24px;
}
.about-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: #f8f8fa;
    border-radius: 12px;
    font-size: 13px;
    color: var(--text);
    font-weight: 500;
}
.about-feature .icon { font-size: 18px; }
.about-numbers {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-top: 40px;
}
.about-number {
    text-align: center;
    padding: 20px 12px;
    background: #fafafa;
    border-radius: 16px;
    border: 1px solid #eee;
}
.about-number .num { font-size: 28px; font-weight: 800; color: var(--primary); }
.about-number .label { font-size: 12px; color: var(--text-light); margin-top: 4px; }

/* ===== Timeline ===== */
.timeline {
    position: relative;
    padding-left: 30px;
    max-width: 700px;
    margin: 0 auto;
}
.timeline::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #ddd;
}
.timeline-item {
    position: relative;
    margin-bottom: 30px;
    padding-left: 20px;
}
.timeline-item::before {
    content: '';
    position: absolute;
    left: -26px;
    top: 4px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--accent);
    border: 3px solid var(--white);
}
.timeline-item h4 { font-size: 16px; margin-bottom: 4px; }
.timeline-item .year { font-size: 12px; color: var(--text-light); }
.timeline-item p { font-size: 13px; color: #555; line-height: 1.6; }

/* ===== Equipment Grid ===== */
.equipment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
}
.equipment-item {
    background: var(--white);
    padding: 20px;
    border-radius: 14px;
    text-align: center;
    border: 1px solid #eee;
    transition: all 0.3s;
}
.equipment-item:hover { border-color: var(--accent); box-shadow: 0 4px 16px rgba(0,0,0,0.06); }
.equipment-item .icon { font-size: 32px; margin-bottom: 8px; }
.equipment-item h4 { font-size: 14px; margin-bottom: 4px; }
.equipment-item p { font-size: 12px; color: var(--text-light); }

/* ===== Mobile Nav Overlay ===== */
.mobile-nav {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.3s;
}
.mobile-nav.open { opacity: 1; display: block; }
.mobile-nav-inner {
    position: fixed;
    top: 0;
    right: -280px;
    width: 280px;
    height: 100%;
    background: var(--white);
    padding: 60px 24px 24px;
    transition: right 0.3s;
    z-index: 1000;
}
.mobile-nav.open .mobile-nav-inner { right: 0; }
.mobile-nav-close {
    position: absolute;
    top: 16px;
    right: 16px;
    font-size: 24px;
    cursor: pointer;
    background: none;
    border: none;
    color: var(--text);
}
.mobile-nav-links { list-style: none; }
.mobile-nav-links a {
    display: block;
    padding: 14px 0;
    border-bottom: 1px solid #eee;
    font-size: 16px;
    color: var(--text);
    font-weight: 500;
}
.mobile-nav-links a.active { color: var(--accent); }

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .header-inner { padding: 12px 16px; }
    .hamburger { display: flex; }
    .hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
    .hamburger.active span:nth-child(2) { opacity: 0; }
    .hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

    .banner-swiper { height: 380px; }
    .banner-swiper .swiper-slide h1 { font-size: 26px; }
    .banner-swiper .swiper-slide { padding: 50px 16px; }
    .banner-swiper .swiper-slide .btns .btn-primary,
    .banner-swiper .swiper-slide .btns .btn-secondary { padding: 12px 24px; font-size: 14px; }

    .page-header { padding: 40px 16px; }
    .page-header h1 { font-size: 26px; }

    .section { padding: 40px 0; }
    .section-title h2 { font-size: 22px; }

    .contact-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .stats-inner { flex-wrap: wrap; gap: 16px; }
    .stat-item { width: 45%; }
    .about-grid { grid-template-columns: 1fr; gap: 30px; }
    .about-features { grid-template-columns: 1fr; }
    .about-numbers { grid-template-columns: repeat(2, 1fr); }
    .product-swiper .swiper-button-next,
    .product-swiper .swiper-button-prev { display: none; }
    .product-detail { grid-template-columns: 1fr; gap: 30px; }
    .product-detail .gallery-main { aspect-ratio: 4/3; font-size: 80px; }
    .inquiry-form-card { padding: 24px; }
    .process-step { min-width: 140px; }
    .category-tabs { gap: 8px; }
    .category-tab { padding: 6px 16px; font-size: 13px; }
}

@media (max-width: 480px) {
    .banner-swiper .swiper-slide h1 { font-size: 22px; }
    .banner-swiper .swiper-slide p { font-size: 14px; }
    .product-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
}