/* ========================================
   欣升测绘 - 共用样式表 style.css
   主色调: #1A56DB (品牌蓝)
   移动端优先 + 响应式
======================================== */

/* ---------- CSS 变量 ---------- */
:root {
    --color-primary: #1A56DB;
    --color-primary-dark: #1341B5;
    --color-primary-light: #3B82F6;
    --color-primary-bg: #EEF4FF;
    --color-accent: #06B6D4;
    --color-dark: #1F2937;
    --color-text: #374151;
    --color-text-light: #6B7280;
    --color-gray: #9CA3AF;
    --color-border: #E5E7EB;
    --color-bg: #FFFFFF;
    --color-bg-alt: #F9FAFB;
    --color-bg-dark: #0F172A;

    --font-cn: "PingFang SC", "Microsoft YaHei", "微软雅黑", "Helvetica Neue", sans-serif;
    --font-en: "Inter", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mix: "Inter", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;

    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
    --shadow-primary: 0 8px 30px rgba(26, 86, 219, 0.25);

    --nav-height: 64px;
    --container-max: 1200px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-mix);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.7;
    font-size: 15px;
    overflow-x: hidden;
}

a { text-decoration: none; color: inherit; transition: color var(--transition); }
a:hover { color: var(--color-primary); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ---------- 容器 ---------- */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 20px;
}

/* ---------- 标题通用 ---------- */
.section-header {
    text-align: center;
    margin-bottom: 40px;
}
.section-header h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 8px;
}
.section-header .subtitle {
    font-family: var(--font-en);
    font-size: 14px;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 4px;
}
.section-header p {
    color: var(--color-text-light);
    font-size: 15px;
    max-width: 600px;
    margin: 0 auto;
}

/* ---------- 导航栏 ---------- */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--nav-height);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(0,0,0,0.06);
    z-index: 1000;
    transition: box-shadow var(--transition);
}
.navbar.scrolled {
    box-shadow: 0 2px 20px rgba(0,0,0,0.1);
}
.nav-inner {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 20px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 18px;
    color: var(--color-primary);
    flex-shrink: 0;
}
.nav-logo .logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 18px;
    font-family: var(--font-en);
}
.nav-logo .logo-text {
    font-family: var(--font-cn);
    font-size: 16px;
    letter-spacing: 1px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
}
.nav-links a {
    padding: 8px 14px;
    font-size: 15px;
    color: var(--color-dark);
    border-radius: var(--radius-sm);
    position: relative;
    font-weight: 500;
}
.nav-links a::after {
    content: "";
    position: absolute;
    bottom: 2px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: all var(--transition);
    transform: translateX(-50%);
}
.nav-links a:hover::after,
.nav-links a.active::after {
    width: 24px;
}
.nav-links a.active {
    color: var(--color-primary);
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 12px;
}
.lang-switch {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 13px;
    font-family: var(--font-en);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    overflow: hidden;
}
.lang-switch button {
    padding: 6px 10px;
    color: var(--color-text-light);
    font-weight: 600;
    transition: all var(--transition);
}
.lang-switch button.active {
    background: var(--color-primary);
    color: #fff;
}

/* 汉堡菜单 */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 6px;
    z-index: 1001;
}
.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-dark);
    border-radius: 2px;
    transition: all var(--transition);
}
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero Banner ---------- */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin-top: 0;
}
.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}
.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}
.hero-bg::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(15, 23, 42, 0.7) 0%,
        rgba(26, 86, 219, 0.5) 50%,
        rgba(15, 23, 42, 0.6) 100%
    );
}
.hero-content {
    position: relative;
    z-index: 1;
    text-align: right;
    color: #fff;
    padding: 0 20px;
    max-width: 900px;
    margin-left: auto;
    margin-right: 5%;
}
.hero-title {
    font-size: 32px;
    font-weight: 800;
    line-height: 1.5;
    margin-bottom: 16px;
    letter-spacing: 2px;
    text-align: right;
}
.hero-title-line {
    display: block;
}
.hero-title .char {
    display: inline-block;
    opacity: 0;
    transform: translateY(30px);
    animation: charFadeIn 0.6s forwards;
}
@keyframes charFadeIn {
    to { opacity: 1; transform: translateY(0); }
}
.hero-subtitle {
    font-size: 16px;
    font-family: var(--font-en);
    opacity: 0.9;
    margin-bottom: 32px;
    letter-spacing: 1px;
    text-align: right;
}
.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: flex-end;
    flex-wrap: wrap;
}
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 600;
    transition: all var(--transition);
    cursor: pointer;
}
.btn-primary {
    background: var(--color-primary);
    color: #fff;
    box-shadow: var(--shadow-primary);
}
.btn-primary:hover {
    background: var(--color-primary-dark);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 12px 35px rgba(26, 86, 219, 0.35);
}
.btn-outline {
    background: rgba(255,255,255,0.1);
    color: #fff;
    border: 1px solid rgba(255,255,255,0.4);
    backdrop-filter: blur(8px);
}
.btn-outline:hover {
    background: rgba(255,255,255,0.2);
    color: #fff;
    transform: translateY(-2px);
}
.btn-text {
    color: var(--color-primary);
    font-size: 14px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}
.btn-text::after {
    content: "→";
    transition: transform var(--transition);
}
.btn-text:hover::after {
    transform: translateX(4px);
}

/* Banner 轮播指示器 */
.hero-dots {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 2;
}
.hero-dots span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255,255,255,0.4);
    cursor: pointer;
    transition: all var(--transition);
}
.hero-dots span.active {
    width: 24px;
    border-radius: 4px;
    background: #fff;
}

/* 向下滚动提示 */
.scroll-hint {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    color: rgba(255,255,255,0.7);
    font-size: 12px;
    font-family: var(--font-en);
    display: none;
    animation: bounce 2s infinite;
}
@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-8px); }
}

/* ---------- 数据看板 ---------- */
.stats {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    padding: 60px 0;
    color: #fff;
    position: relative;
    overflow: hidden;
}
.stats::before {
    content: "";
    position: absolute;
    top: -50%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
    border-radius: 50%;
}
.stats::after {
    content: "";
    position: absolute;
    bottom: -30%;
    left: -5%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255,255,255,0.06) 0%, transparent 70%);
    border-radius: 50%;
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    position: relative;
    z-index: 1;
}
.stat-item {
    text-align: center;
}
.stat-number {
    font-family: var(--font-en);
    font-size: 42px;
    font-weight: 800;
    line-height: 1;
    margin-bottom: 8px;
    background: linear-gradient(to bottom, #fff, rgba(255,255,255,0.8));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.stat-suffix {
    font-size: 20px;
    font-weight: 700;
}
.stat-label {
    font-size: 14px;
    opacity: 0.85;
    letter-spacing: 1px;
}
.stat-divider {
    display: none;
}

/* ---------- 通用 Section ---------- */
.section {
    padding: 60px 0;
}
.section-alt {
    background: var(--color-bg-alt);
}

/* ---------- 公司简介 ---------- */
.about-preview {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    align-items: center;
}
.about-image {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 4/3;
    box-shadow: var(--shadow-lg);
}
.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}
.about-image:hover img {
    transform: scale(1.05);
}
.about-image .badge {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    padding: 12px 20px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}
.about-image .badge .year {
    font-family: var(--font-en);
    font-size: 28px;
    font-weight: 800;
    color: var(--color-primary);
}
.about-image .badge .text {
    font-size: 12px;
    color: var(--color-text-light);
}
.about-text h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 16px;
}
.about-text p {
    color: var(--color-text);
    margin-bottom: 12px;
    line-height: 1.8;
}
.about-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin: 20px 0;
}
.about-feature {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--color-text);
}
.about-feature .icon {
    width: 28px;
    height: 28px;
    background: var(--color-primary-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    font-size: 14px;
    flex-shrink: 0;
}

/* ---------- 业务领域卡片 ---------- */
.business-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}
.business-card {
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    border: 1px solid var(--color-border);
    position: relative;
}
.business-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary-light);
}
.business-card-image {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
}
.business-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}
.business-card:hover .business-card-image img {
    transform: scale(1.08);
}
.business-card-image::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(26,86,219,0.3) 0%, transparent 50%);
    opacity: 0;
    transition: opacity var(--transition);
}
.business-card:hover .business-card-image::after {
    opacity: 1;
}
.business-card-number {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(8px);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-en);
    font-size: 16px;
    font-weight: 800;
    color: var(--color-primary);
    z-index: 1;
}
.business-card-body {
    padding: 24px;
}
.business-card-title {
    font-family: var(--font-en);
    font-size: 18px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 4px;
}
.business-card-title-cn {
    font-size: 14px;
    color: var(--color-primary);
    margin-bottom: 12px;
    font-weight: 500;
}
.business-card-desc {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: 16px;
}
.business-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}
.business-card-tags span {
    font-family: var(--font-en);
    font-size: 11px;
    padding: 4px 10px;
    background: var(--color-primary-bg);
    color: var(--color-primary);
    border-radius: 50px;
    font-weight: 500;
}

/* ---------- 新闻列表 ---------- */
.news-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.news-item {
    display: flex;
    gap: 16px;
    background: #fff;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    border: 1px solid var(--color-border);
    cursor: pointer;
}
.news-item:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary-light);
}
.news-item-image {
    width: 120px;
    height: 90px;
    flex-shrink: 0;
    overflow: hidden;
}
.news-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.news-item-body {
    flex: 1;
    padding: 12px 16px 12px 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.news-item-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 6px;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.news-item:hover .news-item-title {
    color: var(--color-primary);
}
.news-item-summary {
    font-size: 13px;
    color: var(--color-text-light);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 6px;
}
.news-item-date {
    font-family: var(--font-en);
    font-size: 12px;
    color: var(--color-gray);
}

/* 新闻列表页 */
.news-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}
.news-card {
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    border: 1px solid var(--color-border);
    cursor: pointer;
}
.news-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary-light);
}
.news-card-image {
    aspect-ratio: 16/9;
    overflow: hidden;
}
.news-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.news-card:hover .news-card-image img {
    transform: scale(1.06);
}
.news-card-body {
    padding: 20px;
}
.news-card-date {
    font-family: var(--font-en);
    font-size: 12px;
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: 8px;
}
.news-card-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.news-card-summary {
    font-size: 13px;
    color: var(--color-text-light);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 新闻详情 */
.news-detail {
    max-width: 800px;
    margin: 0 auto;
}
.news-detail-header {
    text-align: center;
    margin-bottom: 30px;
}
.news-detail-header h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 12px;
}
.news-detail-meta {
    font-family: var(--font-en);
    font-size: 13px;
    color: var(--color-text-light);
}
.news-detail-cover {
    width: 100%;
    border-radius: var(--radius-lg);
    margin-bottom: 30px;
    overflow: hidden;
}
.news-detail-content {
    font-size: 15px;
    line-height: 2;
    color: var(--color-text);
}
.news-detail-content p {
    margin-bottom: 16px;
}
.news-back {
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid var(--color-border);
}

/* ---------- 招贤纳士 ---------- */
.job-banner {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-radius: var(--radius-lg);
    padding: 40px 30px;
    color: #fff;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.job-banner::before {
    content: "";
    position: absolute;
    top: -20%;
    right: -10%;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    border-radius: 50%;
}
.job-banner h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
    position: relative;
}
.job-banner p {
    opacity: 0.9;
    margin-bottom: 24px;
    position: relative;
}
.job-banner .btn-white {
    background: #fff;
    color: var(--color-primary);
}
.job-banner .btn-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.2);
}

.job-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}
.job-card {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 24px;
    transition: all var(--transition);
}
.job-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
}
.job-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
    flex-wrap: wrap;
    gap: 8px;
}
.job-card-title {
    font-size: 17px;
    font-weight: 700;
    color: var(--color-dark);
}
.job-card-salary {
    font-family: var(--font-en);
    font-size: 15px;
    font-weight: 700;
    color: var(--color-primary);
}
.job-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 13px;
    color: var(--color-text-light);
    margin-bottom: 12px;
}
.job-card-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}
.job-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}
.job-card-tags span {
    font-size: 12px;
    padding: 3px 10px;
    background: var(--color-primary-bg);
    color: var(--color-primary);
    border-radius: 50px;
}

/* ---------- 联系我们 ---------- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}
.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.contact-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 20px;
    background: #fff;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    transition: all var(--transition);
}
.contact-item:hover {
    border-color: var(--color-primary-light);
    box-shadow: var(--shadow-sm);
}
.contact-item .icon {
    width: 44px;
    height: 44px;
    background: var(--color-primary-bg);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    font-size: 20px;
    flex-shrink: 0;
}
.contact-item .label {
    font-size: 12px;
    color: var(--color-text-light);
    margin-bottom: 4px;
}
.contact-item .value {
    font-size: 15px;
    color: var(--color-dark);
    font-weight: 500;
    word-break: break-all;
}
.contact-map {
    width: 100%;
    height: 300px;
    background: var(--color-bg-alt);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-border);
    position: relative;
}
.contact-map img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 意见反馈表单 */
.feedback-form {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 30px;
    border: 1px solid var(--color-border);
}
.feedback-form h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 20px;
}
.form-group {
    margin-bottom: 16px;
}
.form-group label {
    display: block;
    font-size: 14px;
    color: var(--color-dark);
    margin-bottom: 6px;
    font-weight: 500;
}
.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: inherit;
    color: var(--color-text);
    transition: border-color var(--transition);
    background: var(--color-bg-alt);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.1);
}
.form-group textarea {
    min-height: 100px;
    resize: vertical;
}

/* ---------- 页面通用 Banner (非首页) ---------- */
.page-banner {
    height: 320px;
    margin-top: var(--nav-height);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}
.page-banner img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.page-banner::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(15,23,42,0.7) 0%, rgba(26,86,219,0.5) 100%);
}
.page-banner-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: #fff;
    padding: 0 20px;
}
.page-banner-content h1 {
    font-size: 30px;
    font-weight: 800;
    margin-bottom: 8px;
    letter-spacing: 2px;
}
.page-banner-content p {
    font-family: var(--font-en);
    font-size: 14px;
    opacity: 0.85;
    letter-spacing: 3px;
    text-transform: uppercase;
}
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--color-text-light);
    margin-bottom: 30px;
}
.breadcrumb a {
    color: var(--color-primary);
}
.breadcrumb .sep {
    color: var(--color-gray);
}

/* ---------- 关于我们页 ---------- */
.about-section {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    align-items: center;
    margin-bottom: 50px;
}
.timeline {
    position: relative;
    padding-left: 30px;
}
.timeline::before {
    content: "";
    position: absolute;
    left: 8px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--color-border);
}
.timeline-item {
    position: relative;
    padding-bottom: 30px;
}
.timeline-item::before {
    content: "";
    position: absolute;
    left: -28px;
    top: 4px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--color-primary);
    border: 3px solid #fff;
    box-shadow: 0 0 0 2px var(--color-primary);
}
.timeline-item .year {
    font-family: var(--font-en);
    font-size: 18px;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 4px;
}
.timeline-item .title {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 4px;
}
.timeline-item .desc {
    font-size: 13px;
    color: var(--color-text-light);
}

/* 资质荣誉 */
.honor-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}
.honor-item {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 20px;
    text-align: center;
    transition: all var(--transition);
}
.honor-item:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}
.honor-item .icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 12px;
    background: var(--color-primary-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    font-size: 22px;
}
.honor-item .title {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-dark);
}

/* ---------- 回到顶部 ---------- */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 20px;
    width: 48px;
    height: 48px;
    background: var(--color-primary);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition);
    z-index: 999;
    box-shadow: var(--shadow-primary);
}
.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.back-to-top:hover {
    background: var(--color-primary-dark);
    transform: translateY(-4px);
}

/* ---------- 滚动淡入动画 ---------- */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}
.fade-in.delay-1 { transition-delay: 0.1s; }
.fade-in.delay-2 { transition-delay: 0.2s; }
.fade-in.delay-3 { transition-delay: 0.3s; }

/* ---------- 页脚 ---------- */
.footer {
    background: var(--color-bg-dark);
    color: rgba(255,255,255,0.7);
    padding: 50px 0 20px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    margin-bottom: 30px;
}
.footer-col h4 {
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 16px;
}
.footer-col ul li {
    margin-bottom: 10px;
}
.footer-col ul li a {
    font-size: 13px;
    color: rgba(255,255,255,0.6);
}
.footer-col ul li a:hover {
    color: #fff;
}
.footer-contact li {
    font-size: 13px;
    color: rgba(255,255,255,0.6);
    margin-bottom: 10px;
    display: flex;
    align-items: flex-start;
    gap: 8px;
}
.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}
.footer-logo .logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 18px;
    font-family: var(--font-en);
}
.footer-logo .logo-text {
    font-size: 16px;
    font-weight: 700;
    color: #fff;
}
.footer-desc {
    font-size: 13px;
    line-height: 1.7;
    margin-bottom: 16px;
}
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
    text-align: center;
    font-size: 12px;
    color: rgba(255,255,255,0.4);
}
.footer-bottom a {
    color: rgba(255,255,255,0.4);
}

/* ---------- 加载动画 ---------- */
.loading-skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}
@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}
.news-loading {
    text-align: center;
    padding: 40px;
    color: var(--color-text-light);
}

/* ========================================
   响应式 - 平板 (≥768px)
======================================== */
@media (min-width: 768px) {
    body { font-size: 16px; }
    .container { padding: 0 32px; }
    .section { padding: 80px 0; }
    .section-header h2 { font-size: 32px; }
    .section-header .subtitle { font-size: 15px; }

    .hero-title { font-size: 42px; }
    .hero-subtitle { font-size: 18px; }
    .scroll-hint { display: block; }

    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 40px;
    }
    .stat-number { font-size: 52px; }
    .stat-divider {
        display: block;
        width: 1px;
        background: rgba(255,255,255,0.15);
    }

    .about-preview {
        grid-template-columns: 1fr 1fr;
        gap: 50px;
    }

    .business-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

    .news-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

    .news-list .news-item-image {
        width: 180px;
        height: 120px;
    }

    .contact-grid {
        grid-template-columns: 1fr 1fr;
    }
    .contact-map { height: 100%; min-height: 400px; }

    .footer-grid {
        grid-template-columns: 2fr 1fr 1fr 1.5fr;
    }

    .job-list {
        grid-template-columns: repeat(2, 1fr);
    }

    .honor-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .page-banner { height: 380px; }
    .page-banner-content h1 { font-size: 38px; }

    .about-section { grid-template-columns: 1fr 1fr; }

    .news-row { grid-template-columns: repeat(2, 1fr); gap: 24px; }
    .job-row { grid-template-columns: repeat(2, 1fr); gap: 24px; }
}

/* ========================================
   响应式 - 桌面 (≥1024px)
======================================== */
@media (min-width: 1024px) {
    .business-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 30px;
    }
    .news-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .news-list .news-item-image {
        width: 220px;
        height: 140px;
    }
    .job-list {
        grid-template-columns: repeat(3, 1fr);
    }
    .hero-title { font-size: 48px; }
    .nav-links a { padding: 8px 18px; font-size: 15px; }

    .news-row { grid-template-columns: repeat(3, 1fr); gap: 24px; }
    .job-row { grid-template-columns: repeat(3, 1fr); gap: 24px; }
}

/* ========================================
   响应式 - 移动端导航
======================================== */
@media (max-width: 900px) {
    .nav-toggle { display: flex; }
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: #fff;
        flex-direction: column;
        align-items: stretch;
        padding: 80px 24px 24px;
        gap: 0;
        box-shadow: -4px 0 30px rgba(0,0,0,0.1);
        transition: right 0.3s ease;
        z-index: 1000;
    }
    .nav-links.open { right: 0; }
    .nav-links a {
        padding: 14px 16px;
        border-radius: var(--radius-sm);
        font-size: 16px;
        border-bottom: 1px solid var(--color-border);
    }
    .nav-links a::after { display: none; }
    .nav-links a.active {
        background: var(--color-primary-bg);
    }
    .nav-right .lang-switch { display: none; }
    .nav-links .lang-switch-mobile {
        display: flex;
        margin-top: 20px;
    }
    .nav-overlay {
        position: fixed;
        inset: 0;
        background: rgba(0,0,0,0.4);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition);
        z-index: 999;
    }
    .nav-overlay.show {
        opacity: 1;
        visibility: visible;
    }
}
@media (min-width: 901px) {
    .lang-switch-mobile { display: none !important; }
}

/* ---------- 语言切换控制 ---------- */
[lang="zh"] .lang-only-en { display: none !important; }
[lang="en"] .lang-only-zh { display: none !important; }

/* 首页新闻三列卡片 */
.news-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}
.news-row-card {
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: all var(--transition);
    cursor: pointer;
}
.news-row-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary-light);
}
.news-row-card-image {
    aspect-ratio: 16/10;
    overflow: hidden;
}
.news-row-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.news-row-card:hover .news-row-card-image img {
    transform: scale(1.06);
}
.news-row-card-body {
    padding: 20px;
}
.news-row-card-tag {
    display: inline-block;
    font-size: 11px;
    padding: 3px 10px;
    background: var(--color-primary-bg);
    color: var(--color-primary);
    border-radius: 50px;
    font-weight: 500;
    margin-bottom: 8px;
}
.news-row-card-date {
    font-family: var(--font-en);
    font-size: 12px;
    color: var(--color-text-light);
    margin-bottom: 4px;
}
.news-row-card-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.news-row-card:hover .news-row-card-title {
    color: var(--color-primary);
}
.news-row-card-summary {
    font-size: 13px;
    color: var(--color-text-light);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 首页热门岗位三列 */
.job-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    margin-top: 30px;
}
.job-row-card {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 30px 24px;
    text-align: center;
    transition: all var(--transition);
}
.job-row-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-6px);
}
.job-row-card .icon-circle {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    background: var(--color-primary-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
}
.job-row-card-title {
    font-family: var(--font-en);
    font-size: 17px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 4px;
}
.job-row-card-title-cn {
    font-size: 15px;
    color: var(--color-primary);
    font-weight: 500;
    margin-bottom: 10px;
}
.job-row-card-desc {
    font-size: 13px;
    color: var(--color-text-light);
    margin-bottom: 16px;
    line-height: 1.6;
}
.job-row-card .btn-sm {
    padding: 8px 20px;
    font-size: 13px;
    background: var(--color-primary);
    color: #fff;
    border-radius: var(--radius-sm);
    display: inline-block;
    transition: all var(--transition);
}
.job-row-card .btn-sm:hover {
    background: var(--color-primary-dark);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary);
}

/* ---------- 工具类 ---------- */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-40 { margin-top: 40px; }
.mb-20 { margin-bottom: 20px; }
.hidden { display: none !important; }