/* ================================================
   企业官网全局样式 — 基于 Vue3 版本的设计风格
   ================================================ */

/* ---- CSS 变量：主题色、间距、阴影等 ---- */
:root {
    /* 主色系（blue → cyan 渐变） */
    --primary-50: #eff6ff;
    --primary-100: #dbeafe;
    --primary-200: #bfdbfe;
    --primary-300: #93c5fd;
    --primary-400: #60a5fa;
    --primary-500: #3b82f6;
    --primary-600: #2563eb;
    --primary-700: #1d4ed8;
    --primary-800: #1e40af;
    --primary-900: #1e3a8a;

    /* 辅助色：cyan */
    --accent-400: #22d3ee;
    --accent-500: #06b6d4;

    /* 文字色 */
    --text-900: #111827;
    --text-800: #1f2937;
    --text-700: #374151;
    --text-600: #4b5563;
    --text-500: #6b7280;
    --text-400: #9ca3af;
    --text-300: #d1d5db;

    /* 背景色 */
    --bg-white: #ffffff;
    --bg-gray: #f9fafb;
    --bg-light: #f3f4f6;
    --bg-tech: #f0f9ff;

    /* 边框 */
    --border-color: #e5e7eb;
    --border-light: #f3f4f6;

    /* 圆角 */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 20px;

    /* 阴影 */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-card-hover: 0 12px 24px rgba(37, 99, 235, 0.15);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.12);

    /* 渐变 */
    --gradient-primary: linear-gradient(135deg, #2563eb 0%, #06b6d4 100%);
    --gradient-hero: linear-gradient(135deg, #eff6ff 0%, #ecfeff 50%, #f0f9ff 100%);
    --gradient-card: linear-gradient(135deg, #dbeafe 0%, #cffafe 100%);
    --gradient-glow: radial-gradient(circle at 50% 50%, rgba(37, 99, 235, 0.1) 0%, transparent 60%);

    /* 尺寸 */
    --container-max: 1200px;
    --page-header-h: 72px;

    /* 高分辨率大屏整体缩放系数（随视口宽度 media query 调整） */
    --page-zoom: 1;

    /* 过渡 */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 15px;
}

/* ---- 高分辨率大屏适配：整体等比放大（等效浏览器缩放，150% 观感） ----
   视口 ≥1536px 起按梯度放大；100vh/90vh 类尺寸通过 calc(/var(--page-zoom)) 补偿，
   避免缩放后出现多余滚动条。 */
@media (min-width: 1536px) {
    :root { --page-zoom: 1.2; }
    html { zoom: var(--page-zoom); }
}

@media (min-width: 1920px) {
    :root { --page-zoom: 1.4; }
}

@media (min-width: 2560px) {
    :root { --page-zoom: 1.6; --container-max: 1440px; }
}

@media (min-width: 3200px) {
    :root { --page-zoom: 1.8; --container-max: 1600px; }
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-white);
    color: var(--text-800);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    min-height: calc(100vh / var(--page-zoom));
    display: flex;
    flex-direction: column;
}

a {
    color: var(--primary-600);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-800);
}

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

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

main {
    flex: 1;
}

/* ================================================
   页面头部导航
   ================================================ */
.site-header {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-light);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: saturate(180%) blur(10px);
    background: rgba(255, 255, 255, 0.85);
}

.header-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
    height: var(--page-header-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-900);
    letter-spacing: 0.3px;
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.2rem;
    font-weight: 800;
    flex-shrink: 0;
}

/* ===== 品牌主 Logo（横向） ===== */
/* 注：当前 logo.svg / logo.png 为用户自定义横向品牌图 */
.site-logo-img {
    display: block;
    height: 62px;
    width: auto;
    max-width: 480px;
    object-fit: contain;
    flex-shrink: 0;
}
@media (max-width: 640px) {
    .site-logo-img {
        height: 46px;
        max-width: 300px;
    }
}

.footer-logo {
    height: 108px;
    max-width: 420px;
}
@media (max-width: 640px) {
    .footer-logo {
        height: 76px;
        max-width: 300px;
    }
}

/* 后台登录页横向品牌 Logo */
.admin-login-logo {
    display: block;
    height: 156px;
    width: auto;
    max-width: 620px;
    object-fit: contain;
    margin: 0 auto 18px;
}

.nav-menu {
    display: flex;
    gap: 4px;
    align-items: center;
    flex: 1;
    justify-content: center;
}

.nav-menu a {
    padding: 8px 18px;
    color: var(--text-700);
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    font-size: 0.95rem;
    position: relative;
}

.nav-menu a:hover {
    color: var(--primary-600);
    background: var(--primary-50);
}

.nav-menu a.active {
    color: var(--primary-600);
    background: var(--primary-50);
    font-weight: 600;
}

.nav-menu a.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 22px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-base);
    border: 2px solid transparent;
    text-align: center;
    background: transparent;
    color: inherit;
    line-height: 1.4;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-primary {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

.btn-primary:hover {
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.35);
    color: #fff;
}

.btn-outline {
    background: transparent;
    color: var(--primary-600);
    border-color: var(--primary-200);
}

.btn-outline:hover {
    background: var(--primary-50);
    border-color: var(--primary-300);
    color: var(--primary-700);
}

.btn-secondary {
    background: var(--bg-gray);
    color: var(--text-700);
}

.btn-secondary:hover {
    background: var(--bg-light);
}

.btn-lg {
    padding: 14px 32px;
    font-size: 1rem;
}

.btn-sm {
    padding: 6px 14px;
    font-size: 0.85rem;
}

.btn-danger {
    background: #fee2e2;
    color: #dc2626;
}

.btn-danger:hover {
    background: #fecaca;
    color: #b91c1c;
}

/* ================================================
   页面顶部区域（Hero）
   ================================================ */
.page-hero {
    padding: 70px 0 60px;
    background: var(--gradient-hero);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 100%;
    background: var(--gradient-glow);
    pointer-events: none;
}

.page-hero h1 {
    font-size: 2.6rem;
    font-weight: 800;
    color: var(--text-900);
    margin-bottom: 16px;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.page-hero p {
    font-size: 1.1rem;
    color: var(--text-600);
    max-width: 600px;
    margin: 0 auto;
}

.badge-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: var(--primary-50);
    color: var(--primary-600);
    border-radius: 999px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 20px;
}

/* ================================================
   首页 Hero 区域
   ================================================ */
.hero-section {
    background: var(--gradient-hero);
    padding: 90px 0 110px;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -100px;
    left: -100px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.08) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-section::after {
    content: '';
    position: absolute;
    bottom: -150px;
    right: -100px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.06) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-content {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text .badge-tag {
    background: rgba(37, 99, 235, 0.08);
}

/* Hero 主标题：对应 HomePage.vue text-4xl md:text-5xl lg:text-6xl font-bold leading-tight mb-6 */
.hero-text h1.hero-main-title {
    display: flex;               /* flex 布局 + 不换行，确保 title1 与 title2 同行 */
    flex-wrap: nowrap;
    align-items: baseline;       /* 垂直基线对齐，避免字号差导致错位 */
    gap: 0.5em;                  /* title1 与 title2 之间的视觉留白 */
    font-size: 2.25rem;          /* text-4xl (36px)：默认 */
    font-weight: 700;            /* font-bold */
    color: #111827;              /* text-gray-900 */
    line-height: 1.2;            /* leading-tight */
    margin-bottom: 1.5rem;       /* mb-6 (24px) */
    letter-spacing: -0.02em;
    white-space: nowrap;
    overflow: visible;
}

/* 标题内的两个 span 都不换行 */
.hero-text h1.hero-main-title span { white-space: nowrap; }

/* title1：深灰色稳重文字 */
.hero-text h1.hero-main-title .title-text {
    color: #1f2937;              /* gray-800，比纯黑更柔和，与背景形成对比 */
    font-weight: 700;
}

/* md 断点：≥ 768px，字号 3rem (48px) */
@media (min-width: 768px) {
    .hero-text h1.hero-main-title { font-size: 3rem; }
}

/* lg 断点：≥ 1024px，字号 3.75rem (60px) */
@media (min-width: 1024px) {
    .hero-text h1.hero-main-title { font-size: 3.75rem; }
}

/* Hero 主标题：渐变高亮文字（title2）—— 与 title1 同行显示 */
.hero-text h1.hero-main-title .highlight {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 800;            /* 比 title1 更粗，增强视觉重点 */
}

.hero-text .subtitle {
    font-size: 1.1rem;
    color: var(--text-600);
    margin-bottom: 36px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-visual {
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    padding: 100px 50px;
    text-align: center;
    color: #fff;
    box-shadow: var(--shadow-xl);
    position: relative;
    overflow: hidden;
    min-height: 460px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.hero-visual::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.15) 0%, transparent 50%);
    pointer-events: none;
}

.hero-visual .hero-emoji {
    font-size: 9rem;
    margin-bottom: 30px;
    filter: drop-shadow(0 6px 18px rgba(0, 0, 0, 0.2));
    line-height: 1;
}

.hero-visual .hero-title {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: #fff;
}

.hero-visual .hero-desc {
    font-size: 1.15rem;
    opacity: 0.9;
    max-width: 320px;
    letter-spacing: 0.05em;
}

/* ================================================
   Hero / About 21:9 宽幅品牌宣传图样式
   ================================================ */
/* Hero 视觉块：升级为「顶部 21:9 品牌图 + 底部文案 caption」双行卡片 */
.hero-visual--banner {
    padding: 0;
    background: var(--gradient-primary);
    gap: 0;
    align-items: stretch;
    min-height: 0;
    justify-content: flex-start;
}
.hero-visual--banner::before { display: none; }

.hero-banner-img {
    width: 100%;
    height: auto;
    aspect-ratio: 2432 / 1024;
    object-fit: cover;
    display: block;
    border-top-left-radius: var(--radius-xl);
    border-top-right-radius: var(--radius-xl);
    box-shadow: 0 8px 28px rgba(15, 23, 42, 0.18);
    position: relative;
    z-index: 1;
}

.hero-visual-caption {
    padding: 28px 36px 32px;
    background: var(--gradient-primary);
    border-bottom-left-radius: var(--radius-xl);
    border-bottom-right-radius: var(--radius-xl);
    text-align: center;
    position: relative;
    z-index: 1;
}
.hero-visual-caption .hero-title { margin-bottom: 8px; font-size: 1.9rem; }
.hero-visual-caption .hero-desc  { max-width: 100%; margin: 0 auto; }

/* About 页卡片：相同 21:9 布局 */
.about-visual--banner {
    padding: 0;
    background: var(--gradient-primary);
    gap: 0;
    align-items: stretch;
    min-height: 0;
    justify-content: flex-start;
}
.about-visual--banner::before { display: none; }

.about-banner-img {
    width: 100%;
    height: auto;
    aspect-ratio: 2432 / 1024;
    object-fit: cover;
    display: block;
    border-top-left-radius: var(--radius-xl);
    border-top-right-radius: var(--radius-xl);
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.16);
}

.about-visual-caption {
    padding: 26px 30px 30px;
    background: var(--gradient-primary);
    border-bottom-left-radius: var(--radius-xl);
    border-bottom-right-radius: var(--radius-xl);
    color: #fff;
    text-align: center;
}

/* ================================================
   统计数据区域
   ================================================ */
.stats-section {
    padding: 60px 0;
    margin-top: -60px;
    position: relative;
    z-index: 2;
}

.stats-wrapper {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-card);
    padding: 40px 20px;
    border: 1px solid var(--border-light);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.stat-item {
    text-align: center;
    padding: 10px;
}

.stat-item .stat-value {
    font-size: 2.4rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 6px;
    line-height: 1.2;
}

.stat-item .stat-label {
    font-size: 0.95rem;
    color: var(--text-500);
    font-weight: 500;
}

/* ================================================
   通用区块
   ================================================ */
.section {
    padding: 80px 0;
}

.section-alt {
    background: var(--bg-gray);
}

.section-tech {
    background: var(--bg-tech);
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--text-900);
    margin-bottom: 12px;
    letter-spacing: -0.01em;
}

.section-header p {
    font-size: 1.05rem;
    color: var(--text-500);
    max-width: 600px;
    margin: 0 auto;
}

.section-header-line::before {
    content: '';
    display: block;
    width: 50px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
    margin: 0 auto 16px;
}

.section-title-row {
    display: flex;
    align-items: end;
    justify-content: space-between;
    margin-bottom: 40px;
    padding: 0;
}

.section-title-row .section-header {
    text-align: left;
    margin-bottom: 0;
}

.section-title-row h2 {
    font-size: 2rem;
}

.section-title-row .view-all {
    color: var(--primary-600);
    font-weight: 600;
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.section-title-row .view-all:hover {
    gap: 10px;
    color: var(--primary-800);
}

/* ================================================
   核心优势 / 特色
   ================================================ */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.advantage-card {
    background: var(--bg-white);
    padding: 32px 24px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    transition: all var(--transition-base);
    text-align: center;
    box-shadow: var(--shadow-card);
}

.advantage-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-card-hover);
    border-color: transparent;
}

.advantage-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    border-radius: var(--radius-lg);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: #fff;
}

.advantage-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-900);
}

.advantage-card p {
    font-size: 0.9rem;
    color: var(--text-500);
    line-height: 1.7;
}

/* ================================================
   产品卡片 / 列表
   ================================================ */
.products-filter {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-bottom: 40px;
}

.filter-btn {
    padding: 8px 20px;
    border-radius: 999px;
    background: var(--bg-white);
    color: var(--text-600);
    border: 1px solid var(--border-color);
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.filter-btn:hover {
    border-color: var(--primary-300);
    color: var(--primary-600);
}

.filter-btn.active {
    background: var(--gradient-primary);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

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

.product-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-light);
    transition: all var(--transition-base);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-card);
}

.product-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-card-hover);
    border-color: transparent;
}

.product-image {
    height: 200px;
    background: var(--gradient-card);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    font-weight: 700;
    color: var(--primary-700);
    overflow: hidden;
    position: relative;
}

.product-image.has-img {
    padding: 0;
}

.product-image.has-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-body {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-category-tag {
    display: inline-block;
    padding: 4px 10px;
    background: var(--primary-50);
    color: var(--primary-600);
    border-radius: var(--radius-sm);
    font-size: 0.78rem;
    font-weight: 600;
    margin-bottom: 12px;
    align-self: flex-start;
}

.product-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-900);
    line-height: 1.4;
}

.product-card .product-desc {
    font-size: 0.9rem;
    color: var(--text-500);
    margin-bottom: 16px;
    flex: 1;
    line-height: 1.7;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.product-features {
    margin-bottom: 16px;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.product-features span {
    display: inline-block;
    padding: 3px 10px;
    background: var(--bg-gray);
    color: var(--text-600);
    border-radius: var(--radius-sm);
    font-size: 0.78rem;
    font-weight: 500;
}

.product-link {
    color: var(--primary-600);
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    margin-top: auto;
}

.product-link:hover {
    gap: 8px;
}

/* ================================================
   产品详情页
   ================================================ */
.product-detail-section {
    padding: 40px 0 60px 0;
}

.product-detail-header {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    margin-bottom: 60px;
    align-items: start;
}

.product-detail-image {
    background: var(--gradient-card);
    border-radius: var(--radius-xl);
    height: 240px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 600;
    color: var(--primary-700);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.product-detail-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-detail-info h1 {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--text-900);
    line-height: 1.3;
}

.product-detail-info .product-detail-desc {
    font-size: 1rem;
    color: var(--text-600);
    line-height: 1.8;
    margin-bottom: 24px;
}

.product-detail-features {
    margin-bottom: 28px;
    background: var(--bg-gray);
    border-radius: var(--radius-lg);
    padding: 24px;
}

.product-detail-features h4 {
    font-size: 1rem;
    color: var(--text-900);
    margin-bottom: 14px;
    font-weight: 700;
}

.feature-list {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

/* ================================================
   管理员后台专属样式
   ================================================ */
.admin-layout {
    display: flex;
    min-height: calc(100vh / var(--page-zoom));
    background: #f3f4f6;
}

.admin-sidebar {
    width: 220px;
    background: #1f2937;
    color: #e5e7eb;
    padding: 0;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
}

.admin-sidebar-header {
    padding: 20px 16px;
    border-bottom: 1px solid #374151;
    font-size: 18px;
    font-weight: 700;
    color: #fff;
}

.admin-sidebar-nav {
    list-style: none;
    padding: 8px 0;
    margin: 0;
}

.admin-sidebar-nav li a {
    display: block;
    padding: 10px 20px;
    color: #d1d5db;
    text-decoration: none;
    font-size: 14px;
    transition: background 0.2s;
    border-left: 3px solid transparent;
    display: flex;
    align-items: center;
    gap: 8px;
}

.admin-sidebar-nav li a:hover { background: #374151; color: #fff; }

.admin-sidebar-nav li a.active {
    background: #111827;
    color: #60a5fa;
    border-left-color: #3b82f6;
}

.nav-icon { font-size: 16px; }

.admin-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }

.admin-header {
    background: #fff;
    padding: 12px 24px;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    border-bottom: 1px solid #e5e7eb;
    box-shadow: 0 1px 3px rgba(0,0,0,0.03);
}

.admin-user-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.admin-user-name { font-weight: 600; color: #1f2937; font-size: 14px; }
.admin-user-role { color: #6b7280; font-size: 12px; }

.admin-logout-btn {
    background: #f3f4f6;
    color: #374151;
    border: 1px solid #d1d5db;
    padding: 6px 14px;
    border-radius: 6px;
    font-size: 13px;
    cursor: pointer;
    transition: background 0.2s;
}
.admin-logout-btn:hover { background: #e5e7eb; color: #dc2626; }

.admin-content {
    flex: 1;
    padding: 24px;
    overflow-y: auto;
}

.admin-page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
}

.admin-page-header h1 {
    margin: 0;
    font-size: 22px;
    font-weight: 700;
    color: #1f2937;
}

.page-subtitle {
    color: #6b7280;
    font-size: 13px;
    margin-top: 4px;
}

.admin-card {
    background: #fff;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.admin-card h3 {
    margin: 0 0 16px 0;
    font-size: 16px;
    color: #111827;
    font-weight: 600;
}

.admin-search-bar {
    display: flex;
    gap: 10px;
    align-items: center;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.admin-dashboard-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}

.admin-stat-card {
    background: #fff;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.admin-stat-value {
    font-size: 28px;
    font-weight: 700;
    color: #2563eb;
}

.admin-stat-label {
    color: #6b7280;
    font-size: 13px;
    margin-top: 4px;
}

.admin-quick-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
    margin-top: 20px;
}

.admin-quick-btn {
    padding: 16px;
    text-align: center;
    background: #f8fafc;
    color: #374151;
    text-decoration: none;
    border-radius: 6px;
    border: 1px solid #e2e8f0;
    transition: all 0.2s;
    font-size: 14px;
    font-weight: 500;
}

.admin-quick-btn:hover {
    background: #eff6ff;
    border-color: #3b82f6;
    color: #2563eb;
}

/* ===== 管理员登录页 ===== */
.admin-login-container {
    min-height: calc(100vh / var(--page-zoom));
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: linear-gradient(135deg, #dbeafe 0%, #eff6ff 35%, #f0f9ff 100%);
    position: relative;
    overflow: hidden;
}

.admin-login-container::before {
    content: '';
    position: absolute;
    top: -200px;
    left: -150px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.12) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.admin-login-container::after {
    content: '';
    position: absolute;
    bottom: -200px;
    right: -150px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.admin-login-card {
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(15, 23, 42, 0.08), 0 2px 8px rgba(15, 23, 42, 0.04);
    width: 100%;
    max-width: 420px;
    padding: 48px 40px;
    position: relative;
    z-index: 1;
}

.admin-login-brand {
    text-align: center;
    margin-bottom: 36px;
}

.admin-login-favicon {
    display: block;
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
    filter: drop-shadow(0 4px 10px rgba(59, 130, 246, 0.25));
}

.admin-login-brand h1 {
    font-size: 1.55rem;
    font-weight: 700;
    color: #0f172a;
    margin: 0 0 8px 0;
    letter-spacing: -0.01em;
}

.admin-login-subtitle {
    color: #64748b;
    font-size: 0.9rem;
    margin: 0;
}

.admin-login-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.admin-form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.admin-form-group label {
    color: #334155;
    font-size: 0.88rem;
    font-weight: 500;
}

.admin-form-input {
    width: 100%;
    padding: 11px 14px;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    font-size: 0.95rem;
    color: #0f172a;
    background: #f8fafc;
    transition: all 0.2s;
    outline: none;
    box-sizing: border-box;
}

.admin-form-input::placeholder {
    color: #94a3b8;
}

.admin-form-input:focus {
    border-color: #3b82f6;
    background: #fff;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.12);
}

.admin-login-error {
    background: #fef2f2;
    color: #dc2626;
    border: 1px solid #fecaca;
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 0.88rem;
    margin: 4px 0;
}

.admin-login-btn {
    width: 100%;
    height: 46px;
    margin-top: 8px;
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 100%);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

.admin-login-btn:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(37, 99, 235, 0.35);
}

.admin-login-btn:active:not(:disabled) {
    transform: translateY(0);
}

.admin-login-btn:disabled {
    opacity: 0.65;
    cursor: not-allowed;
    box-shadow: none;
}

.admin-login-footer {
    margin-top: 28px;
    text-align: center;
    font-size: 0.85rem;
}

.admin-login-footer a {
    color: #64748b;
    text-decoration: none;
    transition: color 0.2s;
}

.admin-login-footer a:hover {
    color: #2563eb;
}

@media (max-width: 480px) {
    .admin-login-card {
        padding: 36px 24px;
        border-radius: 12px;
    }
    .admin-login-brand h1 {
        font-size: 1.35rem;
    }
}

/* 状态标签 */
.status-tag {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}
.status-tag.active { background: #dcfce7; color: #16a34a; }
.status-tag.inactive { background: #fee2e2; color: #dc2626; }

/* 弹窗 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.45);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-box {
    background: #fff;
    border-radius: 10px;
    padding: 24px;
    width: 100%;
    max-width: 420px;
    max-height: calc(90vh / var(--page-zoom));
    overflow-y: auto;
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
}

.modal-box h3 {
    margin: 0 0 18px 0;
    font-size: 18px;
    font-weight: 600;
    color: #111827;
}

/* Toast 提示 */
.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 12px 20px;
    border-radius: 8px;
    color: #fff;
    font-size: 14px;
    z-index: 2000;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    animation: toastSlideIn 0.3s ease-out;
}

@keyframes toastSlideIn {
    from { transform: translateX(120%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

.toast.success { background: #16a34a; }
.toast.error { background: #dc2626; }
.toast.info { background: #2563eb; }

/* 分页 */
.pagination {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.page-info {
    color: #6b7280;
    font-size: 13px;
    padding: 6px 10px;
}

.page-link {
    padding: 6px 12px;
    border: 1px solid #d1d5db;
    background: #fff;
    color: #374151;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    transition: all 0.2s;
}

.page-link:hover:not(.disabled) { border-color: #3b82f6; color: #2563eb; }

.page-link.active {
    background: #3b82f6;
    border-color: #3b82f6;
    color: #fff;
}

.page-link.disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* 响应式 */
@media (max-width: 768px) {
    .admin-layout { flex-direction: column; }
    .admin-sidebar {
        width: 100%;
        min-height: auto;
    }
    .admin-sidebar-nav {
        display: flex;
        flex-wrap: wrap;
        padding: 8px;
    }
    .admin-sidebar-nav li { flex: 1 1 auto; }
    .admin-sidebar-nav li a {
        padding: 10px 12px;
        font-size: 13px;
        border-left: none;
        border-bottom: 3px solid transparent;
    }
    .admin-sidebar-nav li a.active { border-bottom-color: #3b82f6; border-left-color: transparent; }
    .admin-content { padding: 16px; }
    .admin-page-header { flex-direction: column; gap: 12px; align-items: stretch; }
}


.feature-list li {
    padding: 8px 16px;
    background: var(--bg-white);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    color: var(--text-700);
    border-left: 3px solid var(--primary-500);
    font-weight: 500;
}

.product-detail-body {
    background: var(--bg-white);
    padding: 40px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
}

.product-detail-body h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-900);
}

.product-detail-body .features-text {
    font-size: 0.95rem;
    color: var(--text-700);
    line-height: 1.9;
    white-space: pre-wrap;
}

.product-detail-body ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.product-detail-body li {
    position: relative;
    padding: 10px 0 10px 24px;
    color: var(--text-700);
    font-size: 0.95rem;
    line-height: 1.8;
    border-bottom: 1px dashed var(--border-light);
}

.product-detail-body li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 12px;
    width: 18px;
    height: 18px;
    background: var(--gradient-primary);
    color: #fff;
    border-radius: 50%;
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.product-detail-body li:last-child {
    border-bottom: none;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--text-500);
    font-size: 0.9rem;
    margin-bottom: 24px;
    font-weight: 500;
}

.back-link:hover {
    color: var(--primary-600);
    gap: 10px;
}

.related-products {
    margin-top: 60px;
}

/* ================================================
   新闻 / 文章列表
   ================================================ */
.news-filter {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-bottom: 40px;
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    max-width: 900px;
    margin: 0 auto;
}

.news-card {
    background: var(--bg-white);
    padding: 28px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    transition: all var(--transition-base);
    cursor: pointer;
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 24px;
    align-items: start;
    box-shadow: var(--shadow-card);
}

.news-card:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-card-hover);
    border-color: transparent;
}

.news-cover {
    width: 220px;
    height: 140px;
    background: var(--gradient-card);
    border-radius: var(--radius-md);
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--primary-600);
    overflow: hidden;
}

.news-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.news-content {
    flex: 1;
    min-width: 0;
}

.news-category {
    display: inline-block;
    padding: 4px 10px;
    background: var(--primary-50);
    color: var(--primary-600);
    border-radius: var(--radius-sm);
    font-size: 0.78rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.news-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-900);
    line-height: 1.4;
}

.news-card .news-summary {
    font-size: 0.92rem;
    color: var(--text-500);
    line-height: 1.7;
    margin-bottom: 12px;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.news-meta {
    display: flex;
    gap: 20px;
    font-size: 0.85rem;
    color: var(--text-400);
}

.news-meta span {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

/* 新闻详情 */
.news-detail {
    max-width: 820px;
    margin: 0 auto;
    padding: 50px 24px 80px;
}

.news-detail-header {
    text-align: center;
    margin-bottom: 40px;
}

.news-detail-header h1 {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--text-900);
    margin-bottom: 20px;
    line-height: 1.3;
}

.news-detail-header .news-meta {
    justify-content: center;
    color: var(--text-500);
}

.news-detail-cover {
    width: 100%;
    max-height: 400px;
    background: var(--gradient-card);
    border-radius: var(--radius-lg);
    margin-bottom: 40px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 6rem;
    color: var(--primary-600);
}

.news-detail-cover img {
    width: 100%;
    height: 100%;
    max-height: 400px;
    object-fit: cover;
}

.news-detail-content {
    font-size: 1rem;
    line-height: 2;
    color: var(--text-700);
}

.news-detail-content p {
    margin-bottom: 18px;
    text-align: justify;
}

.news-detail-content h2,
.news-detail-content h3 {
    margin: 30px 0 15px;
    color: var(--text-900);
    line-height: 1.5;
}

.news-detail-content h2 {
    font-size: 1.5rem;
    font-weight: 700;
    border-left: 4px solid var(--primary-500);
    padding-left: 14px;
}

.news-detail-content h3 {
    font-size: 1.2rem;
    font-weight: 600;
}

.news-detail-content img {
    max-width: 100%;
    border-radius: var(--radius-md);
    margin: 20px 0;
}

.news-detail-content ul,
.news-detail-content ol {
    margin: 15px 0 15px 30px;
}

.news-detail-content li {
    margin-bottom: 8px;
}

.news-detail-content blockquote {
    background: var(--primary-50);
    border-left: 4px solid var(--primary-500);
    padding: 16px 20px;
    margin: 20px 0;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    color: var(--text-700);
}

.news-detail-content code {
    background: var(--bg-gray);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    color: var(--primary-700);
}

.news-detail-content pre {
    background: var(--text-900);
    color: #e5e7eb;
    padding: 20px;
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin: 20px 0;
}

.news-detail-content pre code {
    background: none;
    color: inherit;
    padding: 0;
}

/* ================================================
   关于我们页
   ================================================ */
.about-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    max-width: var(--container-max);
    margin: 0 auto 80px;
    padding: 0 24px;
    align-items: center;
}

.about-text h2 {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 20px;
    color: var(--text-900);
    line-height: 1.3;
}

.about-text p {
    font-size: 1rem;
    color: var(--text-600);
    line-height: 1.9;
    margin-bottom: 20px;
    text-align: justify;
}

.about-visual {
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    padding: 80px 40px;
    text-align: center;
    color: #fff;
    box-shadow: var(--shadow-xl);
    position: relative;
    overflow: hidden;
}

.about-visual::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.15) 0%, transparent 50%);
    pointer-events: none;
}

.about-visual .big-icon {
    font-size: 5rem;
    margin-bottom: 20px;
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.15));
    position: relative;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 30px;
}

.about-stat-item {
    text-align: center;
    padding: 24px;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
}

.about-stat-item .stat-num {
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.about-stat-item .stat-label {
    font-size: 0.9rem;
    color: var(--text-500);
    margin-top: 6px;
}

.mission-vision {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px 80px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.mv-card {
    background: var(--bg-white);
    padding: 40px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-card);
}

.mv-card .mv-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #fff;
    margin-bottom: 20px;
}

.mv-card h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-900);
}

.mv-card p {
    font-size: 0.95rem;
    color: var(--text-600);
    line-height: 1.8;
}

/* 里程碑 */
.milestones {
    padding: 80px 0;
    background: var(--bg-gray);
}

.timeline {
    max-width: 900px;
    margin: 40px auto 0;
    padding: 0 24px 0 40px;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 10px;
    bottom: 10px;
    width: 2px;
    background: linear-gradient(180deg, var(--primary-400), var(--border-color));
}

.timeline-item {
    position: relative;
    padding: 16px 0 16px 40px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -24px;
    top: 24px;
    width: 14px;
    height: 14px;
    background: var(--gradient-primary);
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.15);
    z-index: 2;
}

.timeline-year {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--primary-600);
    margin-bottom: 4px;
    letter-spacing: 0.5px;
}

.timeline-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-900);
    margin-bottom: 6px;
}

.timeline-desc {
    font-size: 0.9rem;
    color: var(--text-500);
    line-height: 1.7;
}

/* 企业价值观 */
.values-section {
    padding: 80px 0;
}

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

.value-item {
    background: var(--bg-white);
    padding: 36px 28px;
    border-radius: var(--radius-lg);
    text-align: center;
    border: 1px solid var(--border-light);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-card);
}

.value-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card-hover);
    border-color: transparent;
}

.value-item .value-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
    display: inline-block;
    background: var(--primary-50);
    width: 64px;
    height: 64px;
    line-height: 64px;
    border-radius: var(--radius-md);
}

.value-item h4 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-900);
}

.value-item p {
    font-size: 0.9rem;
    color: var(--text-500);
    line-height: 1.7;
}

/* ================================================
   联系我们页
   ================================================ */
.contact-wrapper {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 60px 24px;
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 40px;
}

.contact-info {
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    padding: 40px;
    color: #fff;
    box-shadow: var(--shadow-xl);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.contact-info::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.15) 0%, transparent 50%);
    pointer-events: none;
}

.contact-info h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 24px;
    position: relative;
}

.contact-info-list {
    list-style: none;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 20px;
    margin: 0;
    padding: 0;
    position: relative;
}

.contact-info-list li {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    font-size: 0.95rem;
    line-height: 1.6;
}

.contact-info-list .ci-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.contact-info-list .ci-text {
    font-size: 0.9rem;
    opacity: 0.95;
}

.contact-info-list .ci-label {
    font-size: 0.78rem;
    opacity: 0.75;
    display: block;
    margin-bottom: 4px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.contact-form {
    background: var(--bg-white);
    padding: 40px;
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-card);
}

.contact-form h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-900);
}

.contact-form .form-desc {
    color: var(--text-500);
    font-size: 0.9rem;
    margin-bottom: 28px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-700);
}

.form-group label .required {
    color: #dc2626;
    margin-left: 4px;
}

/* 表单字段下方的补充说明文字 */
.form-hint {
    margin: 8px 0 0;
    font-size: 0.82rem;
    line-height: 1.6;
    color: var(--text-500);
}

.form-hint strong {
    color: var(--primary-600);
    font-weight: 600;
}

.form-control {
    width: 100%;
    padding: 12px 14px;
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--text-800);
    background: var(--bg-white);
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-control::placeholder {
    color: var(--text-400);
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
    line-height: 1.6;
}

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

.form-actions {
    display: flex;
    justify-content: flex-end;
    margin-top: 28px;
}

.form-actions .btn {
    min-width: 140px;
}

/* 成功/错误消息 */
.form-message {
    margin-top: 16px;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    display: none;
}

.form-message.success {
    background: #dcfce7;
    color: #15803d;
    display: block;
    border: 1px solid #86efac;
}

.form-message.error {
    background: #fee2e2;
    color: #b91c1c;
    display: block;
    border: 1px solid #fca5a5;
}

/* ================================================
   合作伙伴
   ================================================ */
.partners-section {
    padding: 60px 0;
    background: var(--bg-gray);
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
    max-width: var(--container-max);
    margin: 20px auto 0;
    padding: 0 24px;
}

.partner-logo {
    background: var(--bg-white);
    padding: 24px 16px;
    border-radius: var(--radius-md);
    text-align: center;
    color: var(--text-500);
    font-weight: 600;
    font-size: 0.9rem;
    border: 1px solid var(--border-light);
    transition: all var(--transition-fast);
}

.partner-logo:hover {
    color: var(--primary-600);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ================================================
   分页
   ================================================ */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 6px;
    margin-top: 50px;
    flex-wrap: wrap;
}

.page-link {
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    color: var(--text-700);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    min-width: 38px;
    text-align: center;
    display: inline-block;
}

.page-link:hover:not(.disabled):not(.active) {
    border-color: var(--primary-400);
    color: var(--primary-600);
}

.page-link.active {
    background: var(--gradient-primary);
    color: #fff;
    border-color: transparent;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

.page-link.disabled {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
}

.page-info {
    padding: 0 16px;
    color: var(--text-500);
    font-size: 0.9rem;
}

/* ================================================
   页脚
   ================================================ */
.site-footer {
    background: var(--text-900);
    color: var(--text-300);
    padding: 60px 0 20px;
    margin-top: auto;
}

.footer-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h4,
.footer-col h5 {
    color: #fff;
    margin-bottom: 18px;
    font-weight: 700;
}

.footer-col h5 {
    font-size: 1rem;
}

.footer-title {
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    gap: 10px;
    color: #fff;
    margin-bottom: 16px;
}

.footer-title .logo-icon {
    width: 36px;
    height: 36px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 800;
    font-size: 1rem;
}

.footer-desc {
    color: var(--text-400);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 20px;
    max-width: 380px;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 12px;
    font-size: 0.9rem;
    color: var(--text-400);
    display: flex;
    gap: 6px;
    align-items: center;
}

.footer-col ul li a {
    color: var(--text-400);
    transition: color var(--transition-fast);
}

.footer-col ul li a:hover {
    color: var(--accent-400);
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 0.85rem;
    color: var(--text-400);
}

/* ================================================
   管理后台样式
   ================================================ */
.admin-layout {
    display: flex;
    min-height: calc(100vh / var(--page-zoom));
    background: var(--bg-gray);
}

.admin-sidebar {
    width: 240px;
    background: var(--text-900);
    color: #fff;
    flex-shrink: 0;
    position: sticky;
    top: 0;
    height: calc(100vh / var(--page-zoom));
    overflow-y: auto;
}

.admin-sidebar-header {
    padding: 24px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    gap: 12px;
}

.admin-sidebar-header .logo-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.2rem;
    font-weight: 800;
}

.admin-sidebar-header .logo-text {
    font-size: 1.1rem;
    font-weight: 700;
    color: #fff;
}

.admin-sidebar-nav {
    padding: 12px;
    list-style: none;
}

.admin-sidebar-nav li {
    margin-bottom: 4px;
}

.admin-sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: #d1d5db;
    font-size: 0.92rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    font-weight: 500;
}

.admin-sidebar-nav a:hover {
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
}

.admin-sidebar-nav a.active {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.admin-sidebar-nav .nav-icon {
    font-size: 1.1rem;
    width: 20px;
    text-align: center;
}

.admin-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.admin-header {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-light);
    padding: 14px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 50;
}

.admin-header-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-900);
}

.admin-user-dropdown {
    display: flex;
    align-items: center;
    gap: 12px;
    position: relative;
}

/* 用户信息点击触发器（整行可点击） */
.admin-user-trigger {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--transition-fast);
    user-select: none;
}

.admin-user-trigger:hover {
    background: var(--bg-gray);
}

.dropdown-arrow {
    font-size: 0.75rem;
    color: var(--text-500);
    margin-left: 2px;
    transition: transform var(--transition-fast);
}

.admin-user-menu.show + .admin-user-trigger .dropdown-arrow,
.admin-user-trigger:has(+ .admin-user-menu.show) .dropdown-arrow {
    transform: rotate(180deg);
}

/* 下拉菜单容器 */
.admin-user-menu {
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    min-width: 160px;
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    padding: 4px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px);
    transition: all var(--transition-fast);
    z-index: 9999;
}

.admin-user-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* 菜单项 */
.menu-item {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 10px 12px;
    font-size: 0.85rem;
    color: var(--text-700);
    background: transparent;
    border: none;
    border-radius: var(--radius-xs);
    cursor: pointer;
    text-align: left;
    transition: background var(--transition-fast);
}

.menu-item:hover {
    background: var(--bg-gray);
    color: var(--text-900);
}

.menu-item-danger {
    color: #dc2626;
}

.menu-item-danger:hover {
    background: #fef2f2;
    color: #b91c1c;
}

.menu-icon {
    font-size: 0.95rem;
}

.admin-avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 600;
    font-size: 0.95rem;
    overflow: hidden;
    flex-shrink: 0;
}

.admin-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    display: block;
}

.admin-user-info {
    text-align: right;
}

.admin-user-info .username {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-800);
}

.admin-user-info .role {
    font-size: 0.78rem;
    color: var(--text-500);
}

.logout-btn {
    padding: 8px 14px;
    font-size: 0.85rem;
    border-radius: var(--radius-sm);
    background: var(--bg-gray);
    color: var(--text-700);
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.logout-btn:hover {
    background: #fee2e2;
    color: #dc2626;
    border-color: #fecaca;
}

.admin-content {
    padding: 32px;
    flex: 1;
}

.admin-page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 28px;
}

.admin-page-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-900);
}

.admin-page-header .page-subtitle {
    font-size: 0.9rem;
    color: var(--text-500);
    margin-top: 4px;
}

/* 仪表盘卡片 */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

.stat-card {
    background: var(--bg-white);
    padding: 24px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    border: 1px solid var(--border-light);
    transition: all var(--transition-fast);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.stat-card .stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: var(--primary-50);
    color: var(--primary-600);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 16px;
}

.stat-card .stat-title {
    font-size: 0.85rem;
    color: var(--text-500);
    margin-bottom: 8px;
    font-weight: 500;
}

.stat-card .stat-num {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-900);
    line-height: 1.2;
}

.stat-card .stat-trend {
    font-size: 0.8rem;
    color: var(--text-500);
    margin-top: 8px;
}

/* 管理表格 */
.admin-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    border: 1px solid var(--border-light);
    padding: 24px;
}

.admin-card + .admin-card {
    margin-top: 20px;
}

.admin-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-light);
}

.admin-card-header h2 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-900);
}

.admin-search-bar {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.admin-search-bar input,
.admin-search-bar select {
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-family: inherit;
    color: var(--text-700);
}

.admin-search-bar input {
    flex: 1;
    min-width: 240px;
}

.admin-search-bar input:focus,
.admin-search-bar select:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.data-table thead {
    background: var(--bg-gray);
}

.data-table th {
    padding: 14px 16px;
    text-align: left;
    font-weight: 600;
    color: var(--text-700);
    font-size: 0.85rem;
    border-bottom: 2px solid var(--border-color);
    white-space: nowrap;
}

.data-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-light);
    color: var(--text-700);
    vertical-align: middle;
}

.data-table tbody tr {
    transition: background var(--transition-fast);
}

.data-table tbody tr:hover {
    background: var(--primary-50);
}

.table-actions {
    display: flex;
    gap: 8px;
}

.btn-link {
    background: none;
    border: none;
    color: var(--primary-600);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.btn-link:hover {
    background: var(--primary-50);
    color: var(--primary-800);
}

.btn-link.danger {
    color: #dc2626;
}

.btn-link.danger:hover {
    background: #fee2e2;
    color: #b91c1c;
}

.status-tag {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 600;
}

.status-tag.active {
    background: #dcfce7;
    color: #15803d;
}

.status-tag.inactive {
    background: #fee2e2;
    color: #b91c1c;
}

.status-tag.pending {
    background: #fef3c7;
    color: #b45309;
}

/* 登录页 */
.login-page {
    min-height: calc(100vh / var(--page-zoom));
    background: var(--gradient-hero);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    position: relative;
    overflow: hidden;
}

.login-page::before {
    content: '';
    position: absolute;
    top: -100px;
    left: -100px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.08) 0%, transparent 70%);
    border-radius: 50%;
}

.login-page::after {
    content: '';
    position: absolute;
    bottom: -150px;
    right: -100px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.06) 0%, transparent 70%);
    border-radius: 50%;
}

.login-card {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: 48px;
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow-xl);
    position: relative;
    z-index: 1;
}

.login-card .logo {
    justify-content: center;
    margin-bottom: 8px;
    font-size: 1.4rem;
}

.login-card .logo-icon {
    width: 56px;
    height: 56px;
    font-size: 1.5rem;
    border-radius: var(--radius-lg);
}

.login-card h1 {
    text-align: center;
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--text-900);
    margin-bottom: 8px;
    margin-top: 20px;
}

.login-card .login-subtitle {
    text-align: center;
    color: var(--text-500);
    font-size: 0.9rem;
    margin-bottom: 32px;
}

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

.login-card .form-control {
    padding: 14px 16px;
}

.login-card .btn {
    width: 100%;
    padding: 14px;
    font-size: 1rem;
    margin-top: 8px;
}

.login-card .back-link {
    text-align: center;
    justify-content: center;
    margin-top: 24px;
    display: flex;
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-400);
}

.empty-state .empty-icon {
    font-size: 4rem;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state p {
    font-size: 1rem;
    margin-bottom: 20px;
}

/* ================== 响应式 ================== */
@media (max-width: 992px) {
    .hero-content,
    .about-intro,
    .product-detail-header,
    .contact-wrapper,
    .mission-vision {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

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

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

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

    .partners-grid {
        grid-template-columns: repeat(3, 1fr);
    }

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

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

    .hero-text h1 {
        font-size: 2.2rem;
    }

    .admin-sidebar {
        width: 72px;
    }

    .admin-sidebar-header .logo-text,
    .admin-sidebar-nav a span:not(.nav-icon) {
        display: none;
    }

    .admin-sidebar-nav a {
        justify-content: center;
    }

    .news-card {
        grid-template-columns: 180px 1fr;
    }

    .news-cover {
        width: 180px;
        height: 120px;
    }
}

@media (max-width: 640px) {
    .nav-menu {
        display: none;
    }

    .hero-section {
        padding: 60px 0 80px;
    }

    .hero-text h1 {
        font-size: 2rem;
    }

    .page-hero {
        padding: 50px 0 40px;
    }

    .page-hero h1 {
        font-size: 1.8rem;
    }

    .section {
        padding: 50px 0;
    }

    .section-header h2 {
        font-size: 1.6rem;
    }

    .advantages-grid,
    .products-grid,
    .stats-grid,
    .values-grid,
    .dashboard-grid {
        grid-template-columns: 1fr;
    }

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

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .news-card {
        grid-template-columns: 1fr;
    }

    .news-cover {
        width: 100%;
        height: 180px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .contact-form,
    .contact-info {
        padding: 28px 20px;
    }

    .login-card {
        padding: 32px 24px;
    }

    .admin-content {
        padding: 20px 16px;
    }

    .admin-header {
        padding: 12px 16px;
    }

    .data-table {
        font-size: 0.8rem;
    }

    .data-table th,
    .data-table td {
        padding: 10px 8px;
    }

    .data-table th.hide-on-mobile,
    .data-table td.hide-on-mobile {
        display: none;
    }

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

/* ================================================
   首页新风格（参考 huikaosiwei.com）
   深蓝主色 + 橙色暖按钮 + 左文右图 Hero + 斜切几何
   ================================================ */
:root {
    --dk-navy-900: #0A1E3F;
    --dk-navy-800: #122E6B;
    --dk-navy-700: #1A3A8A;
    --dk-navy-600: #2449A8;
    --warm-orange: #FF7A18;
    --warm-orange-dark: #E5640A;
    --warm-gold: #F5B544;
    --gradient-dk: linear-gradient(135deg, #0A1E3F 0%, #1A3A8A 60%, #2449A8 100%);
    --gradient-warm: linear-gradient(135deg, #FF7A18 0%, #F5B544 100%);
}

/* ---- Hero 深色版 ---- */
.hero-section--dk {
    background: var(--gradient-dk);
    padding: 100px 0 140px;
    position: relative;
    overflow: hidden;
    color: #fff;
}
.hero-section--dk::before,
.hero-section--dk::after { display: none; }

/* 斜切几何装饰 */
.hero-shape {
    position: absolute;
    pointer-events: none;
    border-radius: 50%;
    filter: blur(40px);
    opacity: 0.35;
    z-index: 0;
}
.hero-shape--1 {
    top: -80px;
    right: 8%;
    width: 360px;
    height: 360px;
    background: radial-gradient(circle, rgba(255, 122, 24, 0.55) 0%, transparent 70%);
}
.hero-shape--2 {
    bottom: -100px;
    left: -80px;
    width: 420px;
    height: 420px;
    background: radial-gradient(circle, rgba(36, 73, 168, 0.65) 0%, transparent 70%);
    opacity: 0.6;
}
.hero-shape--3 {
    top: 40%;
    left: 45%;
    width: 240px;
    height: 240px;
    background: radial-gradient(circle, rgba(245, 181, 68, 0.35) 0%, transparent 70%);
}

/* 左文右图布局 */
.hero-content--dk {
    display: grid;
    grid-template-columns: 1.05fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text--dk { color: #fff; }

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 18px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.18);
    color: #fff;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 22px;
    backdrop-filter: blur(6px);
}
.hero-badge-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--warm-orange);
    box-shadow: 0 0 12px rgba(255, 122, 24, 0.8);
}

.hero-main-title--dk {
    display: block !important;
    flex: none !important;
    flex-wrap: nowrap !important;
    font-size: 3.2rem !important;
    line-height: 1.18 !important;
    font-weight: 800 !important;
    color: #fff !important;
    margin-bottom: 22px !important;
    letter-spacing: -0.01em;
    white-space: normal !important;
    overflow: visible !important;
}
.hero-main-title--dk .title-line {
    display: inline;
    color: #fff;
    background: linear-gradient(135deg, #FFFFFF 0%, #FFE9C7 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    white-space: normal;
}
@media (min-width: 1024px) {
    .hero-main-title--dk { font-size: 4rem !important; }
}

.subtitle--dk {
    color: rgba(255, 255, 255, 0.82) !important;
    font-size: 1.05rem !important;
    line-height: 1.8 !important;
    max-width: 520px;
    margin-bottom: 36px !important;
}

.hero-actions--dk { gap: 18px; }

/* ---- 按钮：橙色暖按钮 + 透明描边按钮 ---- */
.btn-warm {
    background: var(--gradient-warm);
    color: #fff;
    border: none;
    box-shadow: 0 8px 20px rgba(255, 122, 24, 0.35);
    font-weight: 700;
    letter-spacing: 0.5px;
}
.btn-warm:hover {
    color: #fff;
    box-shadow: 0 12px 28px rgba(255, 122, 24, 0.5);
    transform: translateY(-2px);
}
.btn-ghost-light {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.45);
    font-weight: 600;
}
.btn-ghost-light:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #fff;
    color: #fff;
    transform: translateY(-2px);
}

/* 右侧主图 */
.hero-visual--right {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.35);
    transform: perspective(1200px) rotateY(-3deg);
}
.hero-photo {
    width: 100%;
    height: 100%;
    max-height: 540px;
    object-fit: cover;
    display: block;
    aspect-ratio: 4 / 3;
}
.hero-photo-badge {
    position: absolute;
    left: 24px;
    bottom: 24px;
    background: rgba(10, 30, 63, 0.78);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    padding: 16px 22px;
    color: #fff;
    text-align: left;
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.3);
}
.hero-photo-badge-num {
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-warm);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.1;
}
.hero-photo-badge-label {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.85);
    margin-top: 4px;
}

/* 底部斜切过渡 */
.hero-bottom-skew {
    position: absolute;
    left: 0;
    right: 0;
    bottom: -1px;
    height: 60px;
    background: #fff;
    clip-path: polygon(0 100%, 100% 100%, 100% 0, 0 60%);
    z-index: 1;
}

/* ---- 数据统计带 ---- */
.section--stats-band {
    background: #fff;
    padding: 60px 0 40px;
    margin-top: -40px;
    position: relative;
    z-index: 2;
}
.stat-item--dk {
    position: relative;
    padding: 18px 10px 18px;
    border-right: 1px solid var(--border-light);
}
.stat-item--dk:last-child { border-right: none; }
.stat-item--dk .stat-value {
    background: var(--gradient-dk);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    font-size: 2.6rem;
}
.stat-item--dk .stat-label {
    color: var(--text-600);
    font-weight: 600;
    letter-spacing: 0.5px;
}

/* ---- 区块头部：小标签 + 主标题 ---- */
.section-header--center {
    text-align: center;
    margin-bottom: 56px;
}
.section-eyebrow {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--warm-orange-dark);
    letter-spacing: 3px;
    margin-bottom: 12px;
    position: relative;
    padding: 0 36px;
}
.section-eyebrow::before,
.section-eyebrow::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 24px;
    height: 2px;
    background: var(--warm-orange);
}
.section-eyebrow::before { left: 0; }
.section-eyebrow::after { right: 0; }

/* ---- 优势卡片新样式 ---- */
.advantage-card--dk {
    border-top: 3px solid var(--warm-orange);
    border-radius: var(--radius-lg);
    position: relative;
    overflow: hidden;
}
.advantage-card--dk::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, transparent 50%, rgba(255, 122, 24, 0.08) 50%);
}
.advantage-icon--warm {
    background: var(--gradient-warm) !important;
    box-shadow: 0 8px 20px rgba(255, 122, 24, 0.3);
}

/* ---- 产品卡片新样式 ---- */
.product-card--dk {
    border-top: 3px solid transparent;
    background: linear-gradient(180deg, #fff 0%, #fafbff 100%);
}
.product-card--dk:hover {
    border-top-color: var(--warm-orange);
}
.product-card--dk .product-image {
    background: var(--gradient-dk);
    color: #fff;
}

/* ---- 学员口碑案例区（轮播） ---- */
.section--cases {
    background: linear-gradient(180deg, #f7f9fc 0%, #fff 100%);
    padding: 90px 0;
}

.cases-carousel {
    position: relative;
    padding: 0 56px;
}

.cases-viewport {
    overflow: hidden;
    border-radius: var(--radius-md);
}

.cases-track {
    display: flex;
    gap: 20px;
    transition: transform 0.6s cubic-bezier(0.22, 0.61, 0.36, 1);
    will-change: transform;
}

.case-card {
    position: relative;
    flex: 0 0 calc((100% - 60px) / 4); /* 一屏 4 张：3 个 gap*20 */
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: 0 4px 14px rgba(10, 30, 63, 0.08);
    aspect-ratio: 1 / 1;
    background: #fff;
    transition: box-shadow var(--transition-base), transform var(--transition-base);
    cursor: pointer;
}
.case-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 14px 30px rgba(10, 30, 63, 0.18);
}
.case-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
}
.case-card:hover img {
    transform: scale(1.06);
}
.case-tag {
    position: absolute;
    top: 10px;
    left: 10px;
    padding: 4px 10px;
    background: rgba(10, 30, 63, 0.78);
    color: var(--warm-gold);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 1px;
    border-radius: var(--radius-sm);
    backdrop-filter: blur(4px);
}

/* 箭头（产品轮播复用同一套圆形箭头样式） */
.cases-arrow,
.products-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    background: #fff;
    color: var(--dk-navy-800);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 3;
    box-shadow: 0 6px 18px rgba(10, 30, 63, 0.12);
    transition: all var(--transition-fast);
}
.cases-arrow:hover,
.products-arrow:hover {
    background: var(--gradient-warm);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 8px 22px rgba(255, 122, 24, 0.4);
}
.cases-arrow--prev, .products-arrow--prev { left: 6px; }
.cases-arrow--next, .products-arrow--next { right: 6px; }

/* 圆点指示器（产品轮播复用） */
.cases-dots,
.products-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 28px;
}
.cases-dots .dot,
.products-dots .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #d1d5db;
    border: none;
    cursor: pointer;
    padding: 0;
    transition: all var(--transition-fast);
}
.cases-dots .dot.active,
.products-dots .dot.active {
    width: 28px;
    border-radius: 999px;
    background: var(--gradient-warm);
}

/* 响应式：每屏卡片数 */
@media (max-width: 1024px) {
    .case-card { flex: 0 0 calc((100% - 40px) / 3); } /* 3 张 */
}
@media (max-width: 768px) {
    .cases-carousel,
    .products-carousel { padding: 0 44px; }
    .cases-arrow,
    .products-arrow { width: 36px; height: 36px; }
    .case-card { flex: 0 0 calc((100% - 20px) / 2); } /* 2 张 */
}
@media (max-width: 480px) {
    .case-card { flex: 0 0 100%; } /* 1 张 */
    .cases-dots .dot.active,
    .products-dots .dot.active { width: 20px; }
}

/* ---- 首页「产品布局」轮播 ----
 * 一行最多 3 个（窄屏 2 / 1），产品数超过一屏才轮播。
 * 卡片宽度由 main.js 依据「实际一屏张数」写入 flex-basis：
 * 不足 3 个时卡片会撑满整行，不会挤在左边留下空列。
 * 下面的栅格宽度是无 JS 时的兜底。
 */
.products-carousel {
    position: relative;
    padding: 0 56px;
}

.products-viewport {
    overflow: hidden;
    border-radius: var(--radius-lg);
    /* 给卡片 hover 上浮 + 中间卡片放大留空间，避免被 overflow 裁掉 */
    padding: 16px 0;
}

.products-track {
    display: flex;
    gap: 24px;
    transition: transform 0.6s cubic-bezier(0.22, 0.61, 0.36, 1);
    will-change: transform;
}

.products-track .product-card {
    flex: 0 0 calc((100% - 48px) / 3);
}

/* 一屏放得下（无需轮播）时，去掉两侧留白并隐藏箭头 / 圆点 */
.products-carousel.is-static {
    padding: 0;
}

.products-carousel.is-static .products-arrow,
.products-carousel.is-static .products-dots {
    display: none;
}

@media (max-width: 768px) {
    .products-track .product-card { flex: 0 0 calc((100% - 24px) / 2); } /* 2 个 */
}
@media (max-width: 480px) {
    .products-track .product-card { flex: 0 0 100%; } /* 1 个 */
}

/* ---- CTA 横幅：诚邀合作 ---- */
.cta-band {
    background: var(--gradient-dk);
    padding: 64px 0;
    position: relative;
    overflow: hidden;
    color: #fff;
}
.cta-band::before {
    content: '';
    position: absolute;
    top: 0;
    right: -50px;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255, 122, 24, 0.25) 0%, transparent 70%);
    border-radius: 50%;
}
.cta-band__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}
.cta-band__text h2 {
    font-size: 2rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 8px;
    letter-spacing: -0.01em;
}
.cta-band__text p {
    color: rgba(255, 255, 255, 0.82);
    font-size: 1.05rem;
}

/* ---- 响应式适配 ---- */
@media (max-width: 1024px) {
    .hero-content--dk {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .hero-visual--right { transform: none; }
    .hero-photo { max-height: 380px; }
}
@media (max-width: 768px) {
    .hero-section--dk { padding: 70px 0 110px; }
    .hero-main-title--dk { font-size: 2.2rem !important; }
    .section--stats-band { padding: 40px 0 20px; }
    .stat-item--dk {
        border-right: none;
        border-bottom: 1px solid var(--border-light);
        padding: 14px 0;
    }
    .stat-item--dk:last-child { border-bottom: none; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .cta-band__inner { flex-direction: column; text-align: center; }
}