/* ===== 全局重置 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: #1e293b;
    background: #f5f7fa;
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== 导航栏 ===== */
.header {
    background: #fff;
    color: #3e2723;
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 999;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.logo {
    font-size: 26px;
    font-weight: 700;
    letter-spacing: 1px;
}

.logo span {
    color: #d4a574;
}

.logo i {
    color: #d4a574;
    margin-right: 8px;
}

.nav {
    display: flex;
    gap: 32px;
}

.nav a {
    font-weight: 500;
    padding: 6px 0;
    border-bottom: 2px solid transparent;
    transition: 0.2s;
}

.nav a:hover,
.nav a.active {
    border-bottom-color: #d4a574;
    color: #d4a574;
}

.hamburger {
    display: none;
    font-size: 28px;
    cursor: pointer;
    background: none;
    border: none;
    color: #3e2723;
}

/* ===== 按钮 ===== */
.btn {
    display: inline-block;
    background: #d4a574;
    color: #3e2723;
    padding: 14px 38px;
    border-radius: 60px;
    font-weight: 700;
    border: none;
    font-size: 16px;
    cursor: pointer;
    transition: 0.2s;
    box-shadow: 0 6px 14px rgba(184,149,110,0.35);
}

.btn:hover {
    background: #b8956e;
    transform: translateY(-3px);
    box-shadow: 0 10px 22px rgba(184,149,110,0.4);
}

.btn-outline {
    background: transparent;
    border: 2px solid #d4a574;
    color: #3e2723;
    box-shadow: none;
}

.btn-outline:hover {
    background: #d4a574;
    color: #3e2723;
}

.btn i {
    margin-right: 10px;
}

/* ===== 首页 Hero ===== */
.hero {
    background: linear-gradient(135deg, #faf6f0 0%, #e8d9c0 100%);
    color: #3e2723;
    padding: 80px 0;
}

.hero-grid {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 40px;
}

.hero-text {
    flex: 1 1 50%;
}

.hero-text h1 {
    font-size: 44px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero-text h1 span {
    color: #d4a574;
}

.hero-text p {
    font-size: 20px;
    opacity: 0.85;
    margin-bottom: 30px;
    max-width: 500px;
}

.hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    margin-top: 30px;
}

.hero-stats div {
    display: flex;
    flex-direction: column;
}

.hero-stats .num {
    font-size: 34px;
    font-weight: 800;
    color: #d4a574;
}

.hero-stats .label {
    font-size: 14px;
    opacity: 0.8;
}

.hero-image {
    flex: 1 1 35%;
    background: rgba(255,255,255,0.7);
    border-radius: 32px;
    padding: 40px 30px;
    text-align: center;
    border: 1px solid rgba(180,140,100,0.2);
}

.hero-image i {
    font-size: 72px;
    color: #d4a574;
    margin-bottom: 12px;
}

.hero-image p {
    font-size: 18px;
    opacity: 0.9;
}

.badges {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    margin-top: 16px;
}

.badges span {
    background: rgba(212,165,116,0.2);
    padding: 6px 18px;
    border-radius: 40px;
    font-size: 13px;
    border: 1px solid rgba(212,165,116,0.25);
}

.badges i {
    font-size: 13px;
    color: #d4a574;
    margin-right: 6px;
}

/* ===== 通用 Section ===== */
.section {
    padding: 70px 0;
}

.section-title {
    font-size: 34px;
    font-weight: 700;
    margin-bottom: 40px;
    text-align: center;
}

.section-title span {
    color: #8d6e63;
}

/* ===== 核心优势 ===== */
.adv-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.adv-item {
    background: white;
    padding: 32px 24px;
    border-radius: 24px;
    text-align: center;
    box-shadow: 0 8px 30px rgba(0,0,0,0.04);
    transition: 0.2s;
    border: 1px solid #eef2f6;
}

.adv-item:hover {
    transform: translateY(-6px);
    border-color: #d4a574;
}

.adv-item i {
    font-size: 44px;
    color: #8d6e63;
    margin-bottom: 12px;
}

.adv-item h3 {
    font-size: 20px;
    margin-bottom: 6px;
}

.adv-item p {
    color: #475569;
    font-size: 15px;
}

/* ===== 产品卡片 ===== */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 30px;
}

.product-grid.full-grid {
    grid-template-columns: repeat(3, 1fr);
}
@media (max-width: 768px) { .product-grid.full-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .product-grid.full-grid { grid-template-columns: 1fr; } }



.product-img { width:100%; height:180px; overflow:hidden; border-radius:16px 16px 0 0; margin:-28px -20px 16px -20px; }
.product-img img { width:100%; height:100%; object-fit:cover; transition:0.3s; }
.product-card:hover .product-img img { transform:scale(1.05); }
.case-img img { width:100%; height:100%; object-fit:cover; }

.product-card {
    background: white;
    padding: 28px 20px;
    border-radius: 24px;
    text-align: center;
    box-shadow: 0 8px 30px rgba(0,0,0,0.04);
    border: 1px solid #eef2f6;
    transition: 0.2s;
}

.product-card:hover {
    transform: translateY(-8px);
    border-color: #d4a574;
}

.product-card i {
    font-size: 44px;
    color: #8d6e63;
    margin-bottom: 12px;
}

.product-card h3 {
    font-size: 20px;
    margin-bottom: 4px;
}

.product-card p {
    color: #475569;
    font-size: 14px;
}

.product-card .spec {
    display: inline-block;
    margin-top: 12px;
    background: #f1f5f9;
    padding: 4px 16px;
    border-radius: 40px;
    font-size: 13px;
    font-weight: 600;
}

.full-grid {
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
}

/* ===== 关于我们 ===== */
.about-wrap {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    align-items: center;
}

.about-text {
    flex: 1 1 55%;
}

.about-text h2 {
    font-size: 30px;
    margin-bottom: 16px;
}

.about-text h2 span {
    color: #8d6e63;
}

.about-text p {
    font-size: 17px;
    margin-bottom: 12px;
    color: #1e293b;
}

.about-text ul {
    list-style: none;
    margin-top: 16px;
}

.about-text ul li {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.about-text ul li i {
    color: #d4a574;
    font-size: 20px;
    width: 24px;
}

.about-image {
    flex: 1 1 30%;
    background: #d9e2ef;
    border-radius: 32px;
    padding: 50px 24px;
    text-align: center;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.about-image i {
    font-size: 64px;
    color: #8d6e63;
    margin-bottom: 8px;
}

.about-image p {
    font-size: 20px;
    font-weight: 600;
}

.about-image span {
    font-size: 15px;
    opacity: 0.7;
}

/* ===== 荣誉资质 ===== */
.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 20px;
}

.cert-item {
    background: white;
    padding: 20px;
    border-radius: 16px;
    text-align: center;
    border: 1px solid #eef2f6;
}

.cert-item i {
    font-size: 30px;
    color: #d4a574;
    display: block;
    margin-bottom: 6px;
}

.cert-item span {
    font-weight: 600;
    font-size: 15px;
}

/* ===== 案例 ===== */
.case-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.case-item {
    background: white;
    border-radius: 24px;
    overflow: hidden;
    border: 1px solid #eef2f6;
    transition: 0.2s;
}

.case-item:hover {
    border-color: #d4a574;
}

.case-img {
    height: 150px;
    background: #cbd5e1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 44px;
    color: #475569;
}

.case-body {
    padding: 20px 24px 28px;
}

.case-body h4 {
    font-size: 19px;
    margin-bottom: 4px;
}

.case-body p {
    color: #475569;
    font-size: 15px;
}

/* ===== 联系我们 ===== */
.contact-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
}

.contact-info {
    flex: 1 1 28%;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

.info-item i {
    width: 44px;
    height: 44px;
    background: #fff;
    color: #d4a574;
    border-radius: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
}

.contact-cta {
    background: #fff;
    color: #3e2723;
    padding: 16px 20px;
    border-radius: 20px;
    margin-top: 20px;
}

.contact-cta i {
    color: #d4a574;
    margin-right: 10px;
}

.contact-form {
    flex: 1 1 55%;
    background: white;
    padding: 36px 32px;
    border-radius: 32px;
    border: 1px solid #eef2f6;
}

.contact-form h3 {
    font-size: 24px;
}

.contact-form p {
    color: #475569;
    margin-bottom: 16px;
}

.contact-form label {
    font-weight: 600;
    display: block;
    margin: 16px 0 4px;
}

.contact-form input,
.contact-form textarea,
.contact-form select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #d1d9e6;
    border-radius: 16px;
    font-size: 16px;
    background: #fafcff;
    transition: 0.15s;
}

.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
    border-color: #d4a574;
    outline: none;
    box-shadow: 0 0 0 4px rgba(212,165,116,0.15);
}

.contact-form textarea {
    min-height: 120px;
    resize: vertical;
}

.form-row {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.form-row > div {
    flex: 1 1 45%;
}

.form-note {
    font-size: 13px;
    color: #94a3b8;
    margin-top: 14px;
    text-align: center;
}

/* ===== 页眉（内页标题） ===== */
.page-header {
    background: #fff;
    color: #3e2723;
    padding: 50px 0 40px;
    text-align: center;
}

.page-header h1 {
    font-size: 38px;
}

.page-header p {
    opacity: 0.8;
    font-size: 18px;
}

/* ===== 页脚 ===== */
.footer {
    background: #fff;
    color: #cbd5e1;
    padding: 30px 0;
}

.footer .container {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
}

.social a {
    color: #cbd5e1;
    margin-left: 20px;
    font-size: 20px;
    transition: 0.2s;
}

.social a:hover {
    color: #d4a574;
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
    .nav {
        display: none;
        width: 100%;
        flex-direction: column;
        gap: 12px;
        margin-top: 16px;
        border-top: 1px solid rgba(255,255,255,0.08);
        padding-top: 16px;
    }

    .nav.open {
        display: flex;
    }

    .hamburger {
        display: block;
    }

    .hero-text h1 {
        font-size: 30px;
    }

    .hero-stats {
        gap: 24px;
    }

    .section-title {
        font-size: 28px;
    }

    .about-text h2 {
        font-size: 24px;
    }

    .contact-form {
        padding: 24px 18px;
    }

    .form-row > div {
        flex: 1 1 100%;
    }

    .page-header h1 {
        font-size: 28px;
    }
}

@media (max-width: 480px) {
    .hero-text h1 {
        font-size: 24px;
    }
    .btn {
        padding: 12px 26px;
        font-size: 14px;
    }
}

.lang-switch { color:#d4a574; font-size:14px; font-weight:600; margin-left:20px; padding:4px 12px; border:1px solid #d4a574; border-radius:20px; transition:0.2s; }
.lang-switch:hover { background:#d4a574; color:#3e2723; }


/* ===== Workshop Gallery ===== */
.workshop-gallery { padding-top:0; }
.gallery-sub { text-align:center; color:#8d6e63; font-size:16px; margin:-20px 0 36px 0; }
.workshop-grid { display:grid; grid-template-columns:repeat(2, 1fr); gap:20px; }
.workshop-item { overflow:hidden; border-radius:16px; box-shadow:0 4px 16px rgba(0,0,0,0.06); transition:0.3s; }
.workshop-item:hover { transform:translateY(-4px); box-shadow:0 8px 24px rgba(0,0,0,0.12); }
.workshop-item img { width:100%; height:220px; object-fit:cover; display:block; }
.workshop-item span { display:block; text-align:center; padding:12px; font-size:14px; font-weight:600; color:#3e2723; background:#fff; }
@media (max-width:768px) { .workshop-grid { grid-template-columns:repeat(2, 1fr); } }
@media (max-width:480px) { .workshop-grid { grid-template-columns:1fr; } }