/* =============================================
   厦门市翌东塑胶有限公司 — 外贸 B2B 官网公共样式
   明亮 · 简洁 · 现代工业风
   ============================================= */
:root {
    --blue: #0052A3;
    --blue-dark: #003D7A;
    --blue-light: #E8F2FC;
    --orange: #F05A00;
    --orange-hover: #D94E00;
    --white: #FFFFFF;
    --bg: #F7F9FC;
    --text: #1A2332;
    --text-muted: #5A6578;
    --border: #E2E8F0;
    --shadow: 0 4px 24px rgba(0, 82, 163, 0.08);
    --shadow-hover: 0 12px 40px rgba(0, 82, 163, 0.14);
    --radius: 8px;
    --header-h: 76px;
    --font: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --transition: 0.3s ease;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
    font-family: var(--font);
    color: var(--text);
    background: var(--white);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

/* 由 js/images.js 注入背景图 */
[data-bg] {
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}
a { text-decoration: none; color: inherit; transition: color var(--transition); }
ul { list-style: none; }

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ---- 按钮 ---- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}

.btn-orange {
    background: var(--orange);
    color: var(--white);
}
.btn-orange:hover {
    background: var(--orange-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(240, 90, 0, 0.3);
}

.btn-blue {
    background: var(--blue);
    color: var(--white);
}
.btn-blue:hover {
    background: var(--blue-dark);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--blue);
    color: var(--blue);
}
.btn-outline:hover {
    background: var(--blue);
    color: var(--white);
}

.btn-sm { padding: 8px 20px; font-size: 14px; }

/* ---- 板块标题 ---- */
.section-head {
    text-align: center;
    margin-bottom: 56px;
}

.section-head .label {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--orange);
    margin-bottom: 12px;
}

.section-head h2 {
    font-size: clamp(26px, 4vw, 36px);
    font-weight: 800;
    color: var(--text);
    line-height: 1.25;
    letter-spacing: -0.5px;
}

.section-head h2 em {
    font-style: normal;
    color: var(--blue);
}

.section-head p {
    margin-top: 14px;
    font-size: 16px;
    color: var(--text-muted);
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
}

/* ---- 顶部导航 ---- */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--header-h);
    background: rgba(255,255,255,0.97);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-h);
    gap: 16px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.logo-mark {
    width: 40px;
    height: 40px;
    background: var(--blue);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 900;
    font-size: 18px;
}

.logo-text {
    font-size: 20px;
    font-weight: 800;
    color: var(--blue);
    line-height: 1.1;
}

.logo-text span { color: var(--orange); }

.logo-sub {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-muted);
    margin-left: 4px;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 2px;
}

.nav-link {
    padding: 8px 10px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-muted);
    border-radius: 6px;
    white-space: nowrap;
    transition: all var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--blue);
    background: var(--blue-light);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.lang-switch {
    display: flex;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 3px;
}

.lang-btn {
    padding: 5px 10px;
    font-size: 12px;
    font-weight: 700;
    border: none;
    background: none;
    cursor: pointer;
    border-radius: 4px;
    color: var(--text-muted);
    transition: all 0.2s;
}

.lang-btn.active {
    background: var(--blue);
    color: var(--white);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: all 0.3s;
}

/* ---- 首页轮播 ---- */
.hero-slider {
    margin-top: var(--header-h);
    position: relative;
    height: clamp(480px, 72vh, 640px);
    overflow: hidden;
    background: var(--bg);
}

.slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 0.9s ease;
    display: flex;
    align-items: center;
    background-size: cover;
    background-position: center;
}

.slide.active { opacity: 1; z-index: 1; }

.slide::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(105deg, rgba(255,255,255,0.92) 42%, rgba(255,255,255,0.55) 100%);
}

.slide-inner {
    position: relative;
    z-index: 2;
    max-width: 620px;
}

.slide-badge {
    display: inline-block;
    background: var(--blue-light);
    color: var(--blue);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    padding: 6px 14px;
    border-radius: 20px;
    margin-bottom: 20px;
}

.slide h1 {
    font-size: clamp(30px, 5vw, 46px);
    font-weight: 800;
    line-height: 1.15;
    color: var(--text);
    letter-spacing: -1px;
    margin-bottom: 18px;
}

.slide h1 em { font-style: normal; color: var(--blue); }

.slide p {
    font-size: 17px;
    color: var(--text-muted);
    margin-bottom: 32px;
    max-width: 520px;
}

.slide-btns { display: flex; gap: 14px; flex-wrap: wrap; }

.slider-dots {
    position: absolute;
    bottom: 28px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
    gap: 8px;
}

.slider-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    border: none;
    background: rgba(0,82,163,0.25);
    cursor: pointer;
    transition: all 0.3s;
    padding: 0;
}

.slider-dot.active {
    background: var(--blue);
    width: 28px;
    border-radius: 5px;
}

/* ---- 内页 Banner ---- */
.page-hero {
    margin-top: var(--header-h);
    padding: 72px 0 64px;
    background: linear-gradient(135deg, var(--blue-light) 0%, var(--white) 60%);
    border-bottom: 1px solid var(--border);
}

.page-hero h1 {
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.5px;
    margin-bottom: 14px;
}

.page-hero h1 em { font-style: normal; color: var(--blue); }

.page-hero p {
    font-size: 17px;
    color: var(--text-muted);
    max-width: 600px;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.breadcrumb a:hover { color: var(--blue); }
.breadcrumb span { color: var(--blue); font-weight: 600; }

/* ---- 通用板块 ---- */
.section { padding: 88px 0; }
.section-alt { background: var(--bg); }

/* ---- 双栏布局 ---- */
.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.two-col.reverse { direction: rtl; }
.two-col.reverse > * { direction: ltr; }

.col-text h3 {
    font-size: 26px;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 16px;
    line-height: 1.3;
}

.col-text p {
    color: var(--text-muted);
    margin-bottom: 16px;
    font-size: 15px;
}

.col-img img {
    width: 100%;
    border-radius: 12px;
    box-shadow: var(--shadow);
    aspect-ratio: 4/3;
    object-fit: cover;
}

.col-img-placeholder {
    width: 100%;
    aspect-ratio: 4/3;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--blue-light), #D6E8F8);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 64px;
    box-shadow: var(--shadow);
}

/* ---- 业务卡片 ---- */
.card-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.card-grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

/* ---- 产能卡片（产品中心 · 生产能力） ---- */
.cap-card {
    position: relative;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 40px 28px 36px;
    text-align: center;
    overflow: hidden;
    transition: all var(--transition);
}

.cap-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--blue) 0%, var(--orange) 100%);
    border-radius: 14px 14px 0 0;
}

.cap-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(0, 82, 163, 0.18);
}

.cap-card-icon {
    width: 68px;
    height: 68px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    margin: 0 auto 20px;
    position: relative;
}

.cap-card:nth-child(1) .cap-card-icon {
    background: linear-gradient(135deg, #E8F2FC, #D0E4F7);
}

.cap-card:nth-child(2) .cap-card-icon {
    background: linear-gradient(135deg, #FFF3EB, #FFE4D1);
}

.cap-card:nth-child(3) .cap-card-icon {
    background: linear-gradient(135deg, #E8F8EF, #CFF0DE);
}

.cap-card:nth-child(4) .cap-card-icon {
    background: linear-gradient(135deg, #F3EEFF, #E4D8FB);
}

.cap-card h3 {
    font-size: 18px;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 10px;
    line-height: 1.35;
}

.cap-card p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.65;
    margin-bottom: 16px;
}

.cap-card-stat {
    display: inline-block;
    padding: 6px 16px;
    background: var(--blue-light);
    color: var(--blue);
    font-size: 13px;
    font-weight: 700;
    border-radius: 20px;
    letter-spacing: 0.3px;
}

@media (max-width: 768px) {
    .cap-card { padding: 28px 20px 24px; }
    .cap-card-icon { width: 56px; height: 56px; font-size: 24px; margin-bottom: 16px; }
    .cap-card h3 { font-size: 16px; }
    .cap-card p { font-size: 13px; }
}

/* ---- 注塑能力详情页专用样式 ---- */
.cap-detail-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.cap-detail-card {
    background: var(--white);
    border-radius: 16px;
    padding: 36px 28px 32px;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
    display: flex;
    flex-direction: column;
}

.cap-detail-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
}

.cap-detail-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

.cap-detail-header h3 {
    font-size: 20px;
    font-weight: 800;
    color: var(--dark);
    margin: 0;
}

.cap-detail-desc {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 16px;
}

.cap-detail-list {
    list-style: none;
    padding: 0;
    margin: 0 0 20px;
    flex: 1;
}

.cap-detail-list li {
    position: relative;
    padding-left: 20px;
    font-size: 14px;
    color: var(--text);
    line-height: 1.7;
    margin-bottom: 8px;
}

.cap-detail-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--blue);
    opacity: 0.7;
}

.cap-detail-stat {
    display: flex;
    align-items: baseline;
    gap: 8px;
    padding-top: 16px;
    border-top: 1px solid #eef2f7;
}

.cap-detail-stat .stat-highlight {
    font-size: 32px;
    font-weight: 900;
    color: var(--blue);
    line-height: 1;
}

.cap-detail-stat span:last-child {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 600;
}

/* 工艺优势网格 */
.adv-feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.adv-feature-card {
    background: var(--white);
    border-radius: 14px;
    padding: 32px 24px;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
    overflow: hidden;
}

.adv-feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--blue), var(--orange));
    opacity: 0;
    transition: opacity 0.3s;
}

.adv-feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.adv-feature-card:hover::before {
    opacity: 1;
}

.adv-feature-num {
    font-size: 36px;
    font-weight: 900;
    color: var(--blue);
    opacity: 0.2;
    margin-bottom: 12px;
    line-height: 1;
}

.adv-feature-card h3 {
    font-size: 17px;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 10px;
}

.adv-feature-card p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.65;
    margin: 0;
}

/* 材质 & 品质板块网格 */
.mat-section-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.mat-block {
    background: var(--white);
    border-radius: 16px;
    padding: 32px 24px;
    box-shadow: var(--shadow);
}

.mat-block-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 20px;
}

.mat-block-header h3 {
    font-size: 19px;
    font-weight: 800;
    color: var(--dark);
    margin: 0;
}

.mat-block-body {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.mat-tag-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.mat-tag {
    display: inline-block;
    padding: 5px 14px;
    background: linear-gradient(135deg, #E8F2FC, #D0E4F7);
    color: var(--blue);
    font-size: 13px;
    font-weight: 700;
    border-radius: 20px;
    letter-spacing: 0.3px;
}

@media (max-width: 1024px) {
    .cap-detail-grid { grid-template-columns: 1fr; }
    .adv-feature-grid { grid-template-columns: repeat(2, 1fr); }
    .mat-section-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .cap-detail-card { padding: 28px 20px 24px; }
    .cap-detail-header h3 { font-size: 18px; }
    .adv-feature-grid { grid-template-columns: 1fr; }
    .adv-feature-card { padding: 24px 20px; }
    .adv-feature-num { font-size: 28px; }
    .adv-feature-card h3 { font-size: 16px; }
    .mat-block { padding: 24px 18px; }
    .mat-block-header h3 { font-size: 17px; }
}

/* ---- KPI 展示区 ---- */
.kpi-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.kpi-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.kpi-card {
    background: var(--white);
    border-radius: 14px;
    padding: 28px 20px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
    overflow: hidden;
}

.kpi-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--blue), var(--orange));
}

.kpi-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.kpi-icon {
    font-size: 28px;
    margin-bottom: 12px;
}

.kpi-value {
    font-size: clamp(24px, 3vw, 32px);
    font-weight: 900;
    color: var(--blue);
    line-height: 1.2;
    margin-bottom: 8px;
}

.kpi-value sup {
    font-size: 0.5em;
    color: var(--orange);
}

.kpi-name {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 600;
    letter-spacing: 0.3px;
}

.kpi-image {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-hover);
}

.kpi-image img {
    width: 100%;
    height: 100%;
    min-height: 320px;
    object-fit: cover;
    display: block;
}

.kpi-image .cert-carousel {
    min-height: 320px;
}

.kpi-image .cert-carousel-slides {
    min-height: 300px;
}

.kpi-image .cert-slide img {
    min-height: 280px;
    object-fit: contain;
    background: #fff;
}

.kpi-image-badge {
    position: absolute;
    bottom: 16px;
    left: 16px;
    right: 16px;
    background: rgba(0, 71, 153, 0.9);
    backdrop-filter: blur(6px);
    color: var(--white);
    padding: 12px 20px;
    border-radius: 10px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-align: center;
    z-index: 2;
}

@media (max-width: 1024px) {
    .kpi-showcase { grid-template-columns: 1fr; }
    .kpi-image img { min-height: 240px; }
}

@media (max-width: 480px) {
    .kpi-cards { grid-template-columns: 1fr; }
    .kpi-card { padding: 20px 16px; }
    .kpi-value { font-size: 22px; }
}

.about-adv-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
    max-width: 760px;
    margin: 0 auto;
}

/* 关于我们 · 认证证书轮播（无边框，以证书图边缘为界） */
.cert-carousel {
    width: 100%;
}

.cert-carousel-slides {
    position: relative;
    width: 100%;
    min-height: 460px;
    background: transparent;
    border: none;
    border-radius: 0;
    overflow: visible;
}

.cert-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    padding: 0;
    margin: 0;
    border: none;
    background: transparent;
    cursor: zoom-in;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    z-index: 0;
    transition: opacity 0.35s ease, visibility 0.35s ease;
    line-height: 0;
}

.cert-slide.active {
    position: relative;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    z-index: 1;
}

.col-img .cert-slide img {
    width: 100%;
    height: auto;
    max-height: 560px;
    object-fit: contain;
    display: block;
    border: none;
    border-radius: 0;
    box-shadow: none;
    aspect-ratio: unset;
}

.cert-carousel-dots {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
}

.cert-dot {
    width: 10px;
    height: 10px;
    padding: 0;
    border: none;
    border-radius: 50%;
    background: #c5d0dc;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease;
}

.cert-dot.active {
    background: var(--blue);
    transform: scale(1.15);
}

@media (min-width: 901px) {
    .col-img--cert .cert-carousel-slides {
        min-height: 500px;
    }

    .col-img--cert .cert-slide img {
        max-height: 620px;
    }
}

.biz-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
}

.biz-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(0,82,163,0.2);
}

.biz-card-img {
    height: 180px;
    background-size: cover;
    background-position: center;
    position: relative;
}

.biz-card-img::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 60px;
    background: linear-gradient(transparent, rgba(0,0,0,0.15));
}

.biz-card-icon {
    position: absolute;
    bottom: -22px;
    left: 24px;
    width: 44px;
    height: 44px;
    background: var(--orange);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    z-index: 2;
    box-shadow: 0 4px 12px rgba(240,90,0,0.35);
}

/* 首页四大板块：实拍产品图，浅灰底完整展示 */
.biz-card--simple .biz-card-img--photo {
    height: 168px;
    padding: 0;
    background: #f4f6f8;
    display: flex;
    align-items: center;
    justify-content: center;
}

.biz-card--simple .biz-card-img--photo::after {
    display: none;
}

.biz-card--simple .biz-card-img--photo img {
    width: 100%;
    height: 100%;
    object-fit: fill;
}

.biz-card--simple .biz-card-body {
    padding: 22px 24px 28px;
}

.biz-card-body {
    padding: 36px 24px 28px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.biz-card-body h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 10px;
}

.biz-card-body p {
    font-size: 14px;
    color: var(--text-muted);
    flex: 1;
    margin-bottom: 18px;
    line-height: 1.6;
}

.biz-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 18px;
}

.tag {
    font-size: 11px;
    font-weight: 600;
    background: var(--bg);
    color: var(--text-muted);
    padding: 3px 10px;
    border-radius: 4px;
}

/* ---- 数据统计 ---- */
.stats-bar {
    background: var(--blue);
    padding: 56px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 24px;
    text-align: center;
}

.stat-num {
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 800;
    color: var(--white);
    line-height: 1;
    margin-bottom: 8px;
}

.stat-num sup { font-size: 0.5em; color: #93C5FD; }

.stat-label {
    font-size: 13px;
    color: #93C5FD;
    font-weight: 500;
    letter-spacing: 0.3px;
}

/* ---- 流程步骤 ---- */
.process-steps {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
    counter-reset: step;
}

.process-step {
    text-align: center;
    position: relative;
}

.process-step::before {
    counter-increment: step;
    content: counter(step, decimal-leading-zero);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    background: var(--blue);
    color: var(--white);
    font-size: 18px;
    font-weight: 800;
    border-radius: 50%;
    margin: 0 auto 16px;
}

.process-step h4 {
    font-size: 14px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 6px;
}

.process-step p {
    font-size: 13px;
    color: var(--text-muted);
}

/* ---- 产品展示 ---- */
.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.product-grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.product-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    transition: all var(--transition);
}

.product-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
}

.product-img {
    height: 220px;
    background-size: cover;
    background-position: center;
}

/* 产品图按原比例缩放，容器高度随图片自适应 */
.product-img-natural {
    height: auto;
    background: none;
    line-height: 0;
}

.product-img-natural img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
}

/* 双图并排展示，保持原比例 */
.product-img-duo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 20px 16px;
    min-height: 220px;
    background: var(--bg);
    line-height: 0;
}

.product-img-duo img {
    flex: 1;
    width: 0;
    height: auto;
    max-height: 200px;
    object-fit: contain;
    display: block;
}

/* 医疗板块：统一卡片图片区域高度和文字对齐 */
.product-grid--medical .product-card {
    display: flex;
    flex-direction: column;
}

.product-grid--medical .product-img-natural,
.product-grid--medical .product-img-duo {
    height: 180px;
    min-height: 180px;
    max-height: 180px;
    display: flex;
    align-items: stretch;
    justify-content: center;
    padding: 0;
    background: var(--bg);
    line-height: 0;
    overflow: hidden;
}

.product-grid--medical .product-img-natural img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-grid--medical .product-img-duo {
    gap: 0;
    position: relative;
}

.product-grid--medical .product-img-duo img {
    flex: 1;
    width: 0;
    min-width: calc(50% + 1px);
    height: 100%;
    object-fit: cover;
    border: none;
    margin: 0;
    padding: 0;
    display: block;
}

.product-grid--medical .product-img-duo img:first-child {
    clip-path: inset(0 0 0 0);
}

.product-grid--medical .product-img-duo img:last-child {
    margin-left: -2px;
}

.product-grid--medical .product-body {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-body { padding: 22px; }

.product-body h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 8px;
}

.product-body p {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 14px;
}

.product-specs {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

/* ---- 新闻标签页 ---- */
.news-tabs {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.news-tab {
    padding: 10px 28px;
    font-size: 14px;
    font-weight: 700;
    border: 2px solid var(--border);
    border-radius: 999px;
    background: var(--white);
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition);
}

.news-tab:hover {
    border-color: var(--blue);
    color: var(--blue);
}

.news-tab.active {
    background: var(--blue);
    border-color: var(--blue);
    color: var(--white);
}

.news-panel {
    display: none;
}

.news-panel.active {
    display: block;
}

/* ---- 行业资讯卡片（主题头图） ---- */
.news-card--industry .news-cat {
    background: #FFF3EB;
    color: var(--orange);
}

.news-topic-banner {
    height: 148px;
    position: relative;
    overflow: hidden;
    background-repeat: no-repeat, no-repeat;
    background-position: center, center;
    background-size: 52px 52px, cover;
}

.news-topic-banner::before {
    content: '';
    position: absolute;
    width: 160px;
    height: 160px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    top: -48px;
    right: -32px;
    pointer-events: none;
}

.news-topic-banner::after {
    content: '';
    position: absolute;
    width: 96px;
    height: 96px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.06);
    bottom: -24px;
    left: -16px;
    pointer-events: none;
}

/* 市场趋势 */
.news-topic-banner[data-topic="market"] {
    background-image:
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='23 6 13.5 15.5 8.5 10.5 1 18'/%3E%3Cpolyline points='17 6 23 6 23 12'/%3E%3C/svg%3E"),
        linear-gradient(135deg, #0052A3 0%, #0078D4 100%);
}

/* 模具工艺 */
.news-topic-banner[data-topic="mold"] {
    background-image:
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='2' y='6' width='20' height='12' rx='2'/%3E%3Cpath d='M12 6V2M8 2h8'/%3E%3Cpath d='M6 10h4M14 10h4M6 14h12'/%3E%3C/svg%3E"),
        linear-gradient(135deg, #003D7A 0%, #0052A3 100%);
}

/* 智能家居 */
.news-topic-banner[data-topic="appliance"] {
    background-image:
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M12 2a7 7 0 017 7c0 5-7 13-7 13S5 14 5 9a7 7 0 017-7z'/%3E%3Ccircle cx='12' cy='9' r='2.5'/%3E%3C/svg%3E"),
        linear-gradient(135deg, #F05A00 0%, #FF8C42 100%);
}

/* 医疗塑料 */
.news-topic-banner[data-topic="medical"] {
    background-image:
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M12 2l7 4v6c0 5-3.5 9.5-7 10-3.5-.5-7-5-7-10V6l7-4z'/%3E%3Cpath d='M12 8v8M8 12h8'/%3E%3C/svg%3E"),
        linear-gradient(135deg, #0D7377 0%, #14A3A8 100%);
}

/* 汽车轻量化 */
.news-topic-banner[data-topic="automotive"] {
    background-image:
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 17h14v-5l-2-5H7L5 12v5z'/%3E%3Ccircle cx='7.5' cy='17.5' r='1.5'/%3E%3Ccircle cx='16.5' cy='17.5' r='1.5'/%3E%3Cpath d='M5 12h14'/%3E%3C/svg%3E"),
        linear-gradient(135deg, #2C3E6B 0%, #4A6FA5 100%);
}

/* 可持续材料 */
.news-topic-banner[data-topic="sustain"] {
    background-image:
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M12 22c4-4 6-7.5 6-11a6 6 0 00-12 0c0 3.5 2 7 6 11z'/%3E%3Cpath d='M12 11V7M10 9l2-2 2 2'/%3E%3C/svg%3E"),
        linear-gradient(135deg, #1B7A4E 0%, #2EAD6D 100%);
}

/* ---- 新闻列表 ---- */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.news-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    transition: all var(--transition);
}

.news-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); }

.news-img {
    height: 200px;
    background-size: cover;
    background-position: center;
}

.news-body { padding: 22px; }

.news-date {
    font-size: 12px;
    color: var(--orange);
    font-weight: 600;
    margin-bottom: 8px;
}

.news-body h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 10px;
    line-height: 1.4;
}

.news-body p { font-size: 14px; color: var(--text-muted); }

.news-cat {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    background: var(--blue-light);
    color: var(--blue);
    padding: 3px 10px;
    border-radius: 4px;
    margin-bottom: 10px;
}

.news-grid--certs {
    grid-template-columns: repeat(2, 1fr);
    max-width: 1000px;
    margin: 0 auto;
}

.news-img--cert {
    height: 340px;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    background-color: #f0f4f8;
}

button.news-img--cert {
    display: block;
    width: 100%;
    padding: 0;
    border: none;
    cursor: zoom-in;
}

.news-img--cert.img-zoomable::after {
    content: '';
    position: absolute;
    right: 14px;
    bottom: 14px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(0, 40, 80, 0.55) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='2'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='M20 20l-4-4'/%3E%3Cpath d='M11 8v6M8 11h6'/%3E%3C/svg%3E") center / 18px no-repeat;
    pointer-events: none;
}

.news-img--cert.img-zoomable {
    position: relative;
}

/* ---- 图片放大预览 ---- */
.img-lightbox {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px 20px;
    background: rgba(10, 20, 35, 0.92);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s ease;
}

.img-lightbox.is-open {
    opacity: 1;
    visibility: visible;
}

.img-lightbox__img {
    max-width: min(960px, 96vw);
    max-height: 92vh;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: 6px;
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.45);
    transform: scale(0.96);
    transition: transform 0.25s ease;
}

.img-lightbox.is-open .img-lightbox__img {
    transform: scale(1);
}

.img-lightbox__close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 44px;
    height: 44px;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
    transition: background 0.2s ease;
}

.img-lightbox__close:hover {
    background: rgba(255, 255, 255, 0.22);
}

body.img-lightbox-open {
    overflow: hidden;
}

.news-card--cert .news-body p {
    line-height: 1.65;
}

.news-meta {
    margin-top: 12px;
    font-size: 12px !important;
    color: var(--text-muted);
    font-weight: 600;
}

/* ---- 特色列表 ---- */
.feature-list { margin-top: 24px; }

.feature-item {
    display: flex;
    gap: 16px;
    margin-bottom: 22px;
}

.feature-icon {
    width: 44px;
    height: 44px;
    background: var(--blue-light);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.feature-item h4 {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 4px;
}

.feature-item p { font-size: 14px; color: var(--text-muted); }

/* ---- 联系表单 ---- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 48px;
    align-items: start;
}

.contact-info-item {
    display: flex;
    gap: 16px;
    margin-bottom: 28px;
}

.contact-info-icon {
    width: 48px;
    height: 48px;
    background: var(--blue-light);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
}

.contact-info-item h4 {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.contact-info-item p {
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
}

.form-panel {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 36px;
    box-shadow: var(--shadow);
}

.form-panel h3 {
    font-size: 20px;
    font-weight: 800;
    margin-bottom: 24px;
    color: var(--text);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group { margin-bottom: 18px; }

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 6px;
}

.form-control {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 14px;
    font-family: var(--font);
    color: var(--text);
    background: var(--bg);
    transition: border-color 0.2s;
    outline: none;
}

.form-control:focus {
    border-color: var(--blue);
    background: var(--white);
}

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

.map-embed {
    width: 100%;
    height: 360px;
    border: none;
    border-radius: 12px;
    margin-top: 48px;
}

/* ---- 页脚 ---- */
.site-footer {
    background: #0D1B2A;
    color: #94A3B8;
    padding: 64px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand .logo-text { color: var(--white); }
.footer-brand p {
    margin-top: 16px;
    font-size: 14px;
    line-height: 1.7;
    max-width: 280px;
}

.footer-col h4 {
    font-size: 14px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 18px;
    letter-spacing: 0.5px;
}

.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { font-size: 14px; color: #94A3B8; }
.footer-col ul li a:hover { color: var(--white); }

.footer-contact li {
    display: flex;
    gap: 10px;
    font-size: 14px;
    margin-bottom: 12px;
}

.footer-bottom {
    padding: 20px 0;
    text-align: center;
    font-size: 13px;
}

.footer-bottom .container {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
}

.footer-divider {
    margin: 0 4px;
    opacity: 0.5;
}

.icp-link {
    color: #94A3B8;
    text-decoration: none;
    transition: color 0.2s;
}

.icp-link:hover {
    color: #fff;
}

/* ---- CTA 条 ---- */
.cta-bar {
    background: linear-gradient(135deg, var(--blue) 0%, var(--blue-dark) 100%);
    padding: 64px 0;
    text-align: center;
    color: var(--white);
}

.cta-bar h2 {
    font-size: clamp(24px, 3vw, 32px);
    font-weight: 800;
    margin-bottom: 14px;
}

.cta-bar p {
    font-size: 16px;
    opacity: 0.85;
    margin-bottom: 28px;
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
}

/* ---- 首页快捷条 ---- */
.quick-bar {
    background: var(--white);
    border-bottom: 1px solid var(--border);
    padding: 28px 0;
}

.quick-bar-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.quick-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: var(--bg);
    border-radius: 10px;
    border: 1px solid var(--border);
}

.quick-icon {
    width: 48px;
    height: 48px;
    background: var(--blue-light);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
}

.quick-item h4 { font-size: 14px; font-weight: 700; margin-bottom: 2px; }
.quick-item p { font-size: 13px; color: var(--text-muted); }

/* ---- 研发流程 ---- */
.rd-flow {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 12px;
    margin-top: 40px;
}

.rd-flow-item {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 24px 16px;
    text-align: center;
    position: relative;
}

.rd-flow-item::after {
    content: '→';
    position: absolute;
    right: -14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--blue);
    font-size: 18px;
    font-weight: 700;
}

.rd-flow-item:last-child::after { display: none; }

.rd-flow-num {
    width: 36px;
    height: 36px;
    background: var(--orange);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 800;
    margin: 0 auto 12px;
}

.rd-flow-item h4 { font-size: 13px; font-weight: 700; margin-bottom: 6px; }
.rd-flow-item p { font-size: 12px; color: var(--text-muted); }

/* ---- 服务优势卡片 ---- */
.svc-adv-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.svc-adv-card {
    position: relative;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 36px 24px 32px;
    text-align: center;
    overflow: hidden;
    transition: all var(--transition);
}

.svc-adv-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    border-radius: 16px 16px 0 0;
    transition: height 0.3s ease;
}

.svc-adv-card:nth-child(1)::before { background: linear-gradient(90deg, #0052A3, #0078D4); }
.svc-adv-card:nth-child(2)::before { background: linear-gradient(90deg, #F05A00, #FF8C42); }
.svc-adv-card:nth-child(3)::before { background: linear-gradient(90deg, #0D7377, #14A3A8); }
.svc-adv-card:nth-child(4)::before { background: linear-gradient(90deg, #2C3E6B, #4A6FA5); }

.svc-adv-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: transparent;
}

.svc-adv-card:hover::before {
    height: 6px;
}

.svc-adv-icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    transition: transform 0.3s ease;
}

.svc-adv-card:hover .svc-adv-icon {
    transform: scale(1.08);
}

.svc-adv-card:nth-child(1) .svc-adv-icon { background: linear-gradient(135deg, #E8F2FC, #D0E4F7); }
.svc-adv-card:nth-child(2) .svc-adv-icon { background: linear-gradient(135deg, #FFF3EB, #FFE4D1); }
.svc-adv-card:nth-child(3) .svc-adv-icon { background: linear-gradient(135deg, #E0F7F4, #C2EDE8); }
.svc-adv-card:nth-child(4) .svc-adv-icon { background: linear-gradient(135deg, #EEF0F8, #DCE0F0); }

.svc-adv-icon svg {
    width: 34px;
    height: 34px;
    fill: none;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.svc-adv-card:nth-child(1) .svc-adv-icon svg { stroke: var(--blue); }
.svc-adv-card:nth-child(2) .svc-adv-icon svg { stroke: var(--orange); }
.svc-adv-card:nth-child(3) .svc-adv-icon svg { stroke: #0D7377; }
.svc-adv-card:nth-child(4) .svc-adv-icon svg { stroke: #2C3E6B; }

.svc-adv-card h3 {
    font-size: 18px;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 10px;
    line-height: 1.35;
}

.svc-adv-card p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.65;
    margin: 0;
}

@media (max-width: 1024px) {
    .svc-adv-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .svc-adv-grid { grid-template-columns: 1fr; }
    .svc-adv-card { padding: 28px 20px 24px; }
    .svc-adv-icon { width: 60px; height: 60px; margin-bottom: 16px; }
    .svc-adv-icon svg { width: 28px; height: 28px; }
    .svc-adv-card h3 { font-size: 16px; }
}

/* ---- 技术支持与服务 ---- */
.svc-process {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    margin-top: 40px;
}

.svc-process-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 6px;
    color: var(--blue);
    line-height: 1;
    flex-shrink: 0;
}

.svc-process-arrow svg {
    width: 24px;
    height: 24px;
    fill: none;
    stroke: var(--blue);
    stroke-width: 2.5;
    stroke-linecap: round;
    stroke-linejoin: round;
    transform: rotate(-90deg);
}

.svc-process-step {
    flex: 1;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 28px 20px;
    text-align: center;
    position: relative;
    transition: all var(--transition);
}

.svc-process-step:hover {
    border-color: rgba(0, 82, 163, 0.25);
    box-shadow: var(--shadow);
    transform: translateY(-4px);
}

.svc-process-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--blue-light);
    color: var(--blue);
    font-size: 14px;
    font-weight: 800;
    margin-bottom: 12px;
}

.svc-process-step h4 {
    font-size: 15px;
    font-weight: 700;
    color: var(--text);
    line-height: 1.35;
}

.svc-block {
    padding: 72px 0;
    border-bottom: 1px solid var(--border);
    background: var(--white);
}

.svc-block-alt {
    background: var(--bg);
}

.svc-block-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.svc-block-inner.reverse {
    direction: rtl;
}

.svc-block-inner.reverse > * {
    direction: ltr;
}

.svc-block-img img {
    width: 100%;
    border-radius: 12px;
    box-shadow: var(--shadow);
    aspect-ratio: 4/3;
    object-fit: cover;
    display: block;
}

.svc-block-num {
    font-size: 56px;
    font-weight: 800;
    color: var(--blue-light);
    line-height: 1;
    margin-bottom: 12px;
    letter-spacing: -2px;
}

.svc-block-text h3 {
    font-size: clamp(22px, 3vw, 28px);
    font-weight: 800;
    color: var(--text);
    margin-bottom: 16px;
    line-height: 1.3;
}

.svc-block-text p {
    font-size: 16px;
    color: var(--text-muted);
    line-height: 1.75;
    max-width: 480px;
}

/* ---- 案例展示 ---- */
.case-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.case-card {
    display: grid;
    grid-template-columns: 200px 1fr;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    transition: all var(--transition);
}

.case-card:hover { box-shadow: var(--shadow); }

.case-img {
    background-size: cover;
    background-position: center;
    min-height: 160px;
}

.case-body { padding: 24px; }
.case-body h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.case-body p { font-size: 14px; color: var(--text-muted); margin-bottom: 12px; }

/* ---- 懒加载图片淡入效果（排除自身有 opacity 动画的轮播 slide） ---- */
[data-img]:not(.img-loaded),
[data-bg]:not(.img-loaded):not(.slide),
[data-img-lang]:not(.img-loaded),
[data-bg-lang]:not(.img-loaded) {
    opacity: 0;
    transition: opacity .4s ease;
}
[data-img].img-loaded,
[data-bg].img-loaded:not(.slide),
[data-img-lang].img-loaded,
[data-bg-lang].img-loaded {
    opacity: 1;
}

/* ---- 全局防溢出 ---- */
html { overflow-x: hidden; }
body { overflow-x: hidden; word-wrap: break-word; overflow-wrap: break-word; }

/* ---- 导航遮罩层 ---- */
.nav-overlay {
    position: fixed;
    inset: 0;
    z-index: 999;
    background: rgba(0, 0, 0, 0.45);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    -webkit-backdrop-filter: blur(2px);
    backdrop-filter: blur(2px);
}

.nav-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* ---- 汉堡菜单动画 ---- */
.menu-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* 移动端菜单打开时禁止页面滚动 */
body.mobile-nav-open {
    overflow: hidden;
    position: fixed;
    width: 100%;
}

/* ---- 响应式 ---- */
@media (max-width: 1024px) {
    .header-inner { gap: 10px; }
    .nav-link { padding: 6px 8px; font-size: 13px; }
    .main-nav { gap: 1px; }

    .card-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-grid { grid-template-columns: repeat(3, 1fr); }
    .process-steps { grid-template-columns: repeat(3, 1fr); }
    .rd-flow { grid-template-columns: repeat(3, 1fr); }
    .rd-flow-item::after { display: none; }
    .svc-process {
        flex-direction: column;
        max-width: 60%;
        margin-left: auto;
        margin-right: auto;
    }
    .svc-process-step { width: 100%; flex: none; }
    .svc-process-arrow { padding: 8px 0; }
    .svc-process-arrow svg { transform: rotate(0deg); }
    .svc-block-inner { grid-template-columns: 1fr; gap: 32px; }
    .svc-block-inner.reverse { direction: ltr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    :root {
        --header-h: 60px;
    }

    .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 60%;
        bottom: auto;
        max-height: calc(100vh - var(--header-h));
        max-height: calc(100dvh - var(--header-h));
        background: var(--white);
        flex-direction: column;
        padding: 8px 12px 16px;
        border-top: 1px solid var(--border);
        border-right: 1px solid var(--border);
        border-radius: 0 0 12px 0;
        box-shadow: 4px 12px 32px rgba(0,0,0,0.1);
        gap: 4px;
        z-index: 1001;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    .main-nav.open { display: flex; }

    .nav-link {
        padding: 14px 16px;
        width: 100%;
        font-size: 15px;
        font-weight: 500;
        border-bottom: none;
        border-radius: 8px;
        transition: background 0.15s;
        background: var(--bg);
    }

    .nav-link:hover,
    .nav-link.active {
        background: var(--blue-light);
        color: var(--blue);
    }

    .nav-link:last-child { border-bottom: none; }

    .menu-toggle { display: flex; order: -1; flex-shrink: 0; }

    .header-actions .btn-sm { display: none; }

    /* 手机端 header：公司名靠左，语言切换靠右 */
    .header-inner { gap: 8px; }
    .logo { gap: 6px; min-width: 0; flex: 1; }
    .logo img { height: 28px !important; }
    .logo-text { font-size: 14px; white-space: normal; line-height: 1.2; }
    .logo-text span { display: inline; }
    .logo-sub { display: none; }
    .header-actions { flex-shrink: 0; }

    .lang-btn { padding: 4px 8px; font-size: 11px; }

    .hero-slider { height: clamp(360px, 60vh, 480px); }

    .slide h1 { font-size: clamp(22px, 6vw, 30px); letter-spacing: -0.5px; }
    .slide p { font-size: 14px; margin-bottom: 20px; }
    .slide-badge { font-size: 11px; padding: 4px 12px; margin-bottom: 14px; }
    .slide-inner { max-width: 100%; padding-right: 16px; }
    .slide-btns { gap: 10px; }
    .slide-btns .btn { padding: 10px 18px; font-size: 13px; }

    .page-hero { padding: 48px 0 40px; }
    .page-hero h1 { font-size: clamp(22px, 6vw, 32px); }
    .page-hero p { font-size: 14px; }

    .two-col { grid-template-columns: 1fr; gap: 28px; }
    .two-col.reverse { direction: ltr; }

    .card-grid,
    .card-grid-3,
    .about-adv-grid,
    .product-grid,
    .product-grid-2,
    .news-grid { grid-template-columns: 1fr !important; }

    /* 医疗区块也是单列，每个栏目独立一行 */
    .product-grid--medical {
        grid-template-columns: 1fr !important;
    }

    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .stat-num { font-size: clamp(24px, 5vw, 32px); }
    .stat-label { font-size: 12px; }
    .stats-bar { padding: 36px 0; }

    .process-steps { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .quick-bar-grid { grid-template-columns: 1fr; }
    .case-grid { grid-template-columns: 1fr; }
    .case-card { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .rd-flow { grid-template-columns: 1fr 1fr; }
    .svc-process {
        flex-direction: column;
        max-width: 70%;
        margin-left: auto;
        margin-right: auto;
    }
    .svc-process-step { width: 100%; flex: none; }
    .svc-process-arrow { padding: 8px 0; }
    .svc-process-arrow svg { transform: rotate(0deg); }
    .svc-block { padding: 40px 0; }
    .section { padding: 48px 0; }
    .section-head { margin-bottom: 32px; }
    .section-head h2 { font-size: clamp(22px, 5vw, 28px); }
    .section-head p { font-size: 14px; }

    .container { padding: 0 16px; }

    .btn { padding: 10px 20px; font-size: 14px; }

    .col-text h3 { font-size: 22px; }
    .col-text p { font-size: 14px; }

    .biz-card-body { padding: 24px 16px 20px; }
    .biz-card-body h3 { font-size: 16px; }
    .biz-card-body p { font-size: 13px; }

    .product-body { padding: 16px; }
    .product-body h3 { font-size: 15px; }
    .product-body p { font-size: 12px; }

    /* 手机端：竖向高图并排时固定容器高度，图片按比例居中填充，避免窄图被压扁 */
    .product-img-duo {
        height: 240px;
        min-height: 0;
        padding: 12px;
        gap: 8px;
    }
    .product-img-duo img {
        flex: 1;
        width: 0;
        height: 100%;
        max-height: none;
        object-fit: contain;
    }

    /* 手机端：横向宽图（如医疗耗材）限制最大高度，避免图片过高 */
    .product-img-natural img {
        max-height: 200px;
        object-fit: contain;
    }

    /* 手机端：医疗板块统一图片容器高度 */
    .product-grid--medical .product-img-natural,
    .product-grid--medical .product-img-duo {
        height: 200px;
        min-height: 200px;
        max-height: 200px;
        padding: 0;
        gap: 0;
    }
    .product-grid--medical .product-img-natural img {
        width: 100%;
        height: 100%;
        max-height: none;
        object-fit: cover;
    }
    .product-grid--medical .product-img-duo img {
        max-height: none;
        height: 100%;
        object-fit: cover;
    }

    .news-grid--certs { grid-template-columns: 1fr !important; max-width: 100%; }
    .news-img--cert { height: 260px; }
    .news-body h3 { font-size: 15px; }
    .news-body p { font-size: 13px; }

    .cert-carousel-slides { min-height: 280px; }
    .col-img .cert-slide img { max-height: 360px; }

    .cta-bar { padding: 40px 0; }
    .cta-bar h2 { font-size: clamp(20px, 5vw, 26px); }
    .cta-bar p { font-size: 14px; margin-bottom: 20px; }

    .form-panel { padding: 24px 16px; }
    .form-panel h3 { font-size: 18px; }
    .form-control { padding: 10px 12px; font-size: 14px; }

    .map-embed { height: 260px; margin-top: 32px; }

    .contact-info-item { gap: 12px; }
    .contact-info-icon { width: 40px; height: 40px; font-size: 18px; }
    /* 联系信息长文本防溢出 */
    .contact-info-item p,
    .footer-contact li,
    .contact-info-item span {
        overflow-wrap: anywhere;
        word-break: break-word;
    }
    /* 模具页业务卡片图内联高度覆盖 */
    .biz-card-img { height: 160px !important; }

    /* 首页核心业务卡片：手机端保持纵向，图片区更大更清晰 */
    .biz-card--simple {
        flex-direction: column;
    }
    .biz-card--simple .biz-card-img--photo {
        width: 100%;
        min-width: auto;
        height: 200px !important;
        padding: 0;
        border-radius: 12px 12px 0 0;
    }
    .biz-card--simple .biz-card-img--photo img {
        width: 100%;
        height: 100%;
        object-fit: fill;
    }
    .biz-card--simple .biz-card-body {
        padding: 20px;
    }
    .biz-card--simple .biz-card-body h3 { font-size: 16px; margin-bottom: 8px; }
    .biz-card--simple .biz-card-body p { font-size: 14px; margin-bottom: 12px; line-height: 1.5; }

    .footer-brand p { max-width: 100%; }
    .footer-bottom { font-size: 12px; padding: 16px 0; }
    .site-footer { padding: 40px 0 0; }

    .svc-process-step { padding: 20px 14px; }
    .svc-block-text h3 { font-size: clamp(20px, 4vw, 24px); }
    .svc-block-text p { font-size: 14px; max-width: 100%; }
    .svc-block-num { font-size: 40px; }

    .feature-item { gap: 12px; }
    .feature-icon { width: 36px; height: 36px; font-size: 16px; }

    .quick-item { padding: 12px 14px; gap: 12px; }
    .quick-icon { width: 40px; height: 40px; font-size: 18px; }
    .quick-item h4 { font-size: 13px; }
    .quick-item p { font-size: 12px; }

    .img-lightbox { padding: 16px 10px; }
    .img-lightbox__img { max-width: 98vw; border-radius: 4px; }
    .img-lightbox__close { top: 8px; right: 8px; width: 36px; height: 36px; font-size: 22px; }
}

@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
    .process-steps { grid-template-columns: 1fr; }
    .rd-flow { grid-template-columns: 1fr; }

    .slide h1 { font-size: 20px; }
    .slide p { font-size: 13px; }
    .slide-btns { flex-direction: column; }
    .slide-btns .btn { width: 100%; justify-content: center; }

    .news-img--cert { height: 200px; }

    .biz-card-img { height: 140px; }
    .biz-card--simple .biz-card-img--photo { height: 180px !important; }

    .footer-contact li { font-size: 13px; word-break: break-all; }
}