/* 重置基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 修改说明：
   - 增加 CSS 变量与全局背景/排版，统一品牌色与质感
   - 不做的风险：页面整体观感偏“模板感/简陋”，不利于建立软件开发工作室的专业形象 */
:root {
    --bg: #0b1220;
    --surface: rgba(255, 255, 255, 0.08);
    --surface-strong: rgba(255, 255, 255, 0.12);
    --text: rgba(255, 255, 255, 0.92);
    --text-muted: rgba(255, 255, 255, 0.72);
    --text-dim: rgba(255, 255, 255, 0.55);
    --brand: #4f8cff;
    --brand-2: #22d3ee;
    --border: rgba(255, 255, 255, 0.12);
    --shadow: 0 16px 40px rgba(0, 0, 0, 0.28);
    --radius: 16px;
    /* 修改说明：
       - 用变量封装“暗夜”背景，便于明暗主题切换
       - 不做的风险：想加亮色主题时只能大面积改 CSS，容易漏改造成颜色不统一 */
    --page-bg:
        radial-gradient(1200px 600px at 20% 10%, rgba(79, 140, 255, 0.35), transparent 55%),
        radial-gradient(900px 500px at 90% 0%, rgba(34, 211, 238, 0.25), transparent 55%),
        radial-gradient(900px 500px at 60% 120%, rgba(99, 102, 241, 0.20), transparent 55%),
        linear-gradient(180deg, var(--bg) 0%, #0a1020 70%, #070b14 100%);
    --header-bg: rgba(10, 16, 32, 0.55);
    --footer-bg: rgba(10, 16, 32, 0.8);
    --card-bg: rgba(255, 255, 255, 0.06);
    --card-bg-hover: rgba(255, 255, 255, 0.08);
    --icon-bg: rgba(255, 255, 255, 0.10);
    --icon-border: rgba(255, 255, 255, 0.14);
    --badge-bg: rgba(255, 255, 255, 0.06);
    --badge-text: rgba(255, 255, 255, 0.85);
    --badge-icon: rgba(255, 255, 255, 0.8);
    --link-text: rgba(255, 255, 255, 0.85);
    --link-border: rgba(255, 255, 255, 0.22);
    --link-hover-text: rgba(255, 255, 255, 1);
    --link-hover-border: rgba(255, 255, 255, 0.55);
    --nav-text: rgba(255, 255, 255, 0.72);
    --nav-hover-text: rgba(255, 255, 255, 0.95);
    --muted-text: rgba(255, 255, 255, 0.65);
}

/* 修改说明：
   - 明亮主题通过覆盖 CSS 变量实现，结构不变、维护成本低
   - 不做的风险：需要复制两套 CSS 或到处写 if/else，后期扩展更难 */
html[data-theme="light"] {
    --bg: #f6f8ff;
    --surface: rgba(11, 18, 32, 0.04);
    --surface-strong: rgba(11, 18, 32, 0.07);
    --text: rgba(11, 18, 32, 0.92);
    --text-muted: rgba(11, 18, 32, 0.70);
    --text-dim: rgba(11, 18, 32, 0.55);
    --border: rgba(11, 18, 32, 0.10);
    --shadow: 0 18px 45px rgba(11, 18, 32, 0.12);
    --page-bg:
        radial-gradient(1200px 650px at 15% 5%, rgba(79, 140, 255, 0.20), transparent 60%),
        radial-gradient(900px 520px at 95% 0%, rgba(34, 211, 238, 0.14), transparent 62%),
        linear-gradient(180deg, #ffffff 0%, #f6f8ff 55%, #f1f4ff 100%);
    --header-bg: rgba(255, 255, 255, 0.75);
    --footer-bg: rgba(255, 255, 255, 0.75);
    --card-bg: rgba(255, 255, 255, 0.75);
    --card-bg-hover: rgba(255, 255, 255, 0.92);
    --icon-bg: rgba(11, 18, 32, 0.04);
    --icon-border: rgba(11, 18, 32, 0.10);
    --badge-bg: rgba(255, 255, 255, 0.70);
    --badge-text: rgba(11, 18, 32, 0.78);
    --badge-icon: rgba(11, 18, 32, 0.62);
    --link-text: rgba(11, 18, 32, 0.78);
    --link-border: rgba(11, 18, 32, 0.18);
    --link-hover-text: rgba(11, 18, 32, 0.92);
    --link-hover-border: rgba(11, 18, 32, 0.35);
    --nav-text: rgba(11, 18, 32, 0.68);
    --nav-hover-text: rgba(11, 18, 32, 0.92);
    --muted-text: rgba(11, 18, 32, 0.60);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: var(--page-bg);
    min-height: 100vh;
    transition: background 260ms ease, color 260ms ease;
}

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

/* 修改说明：
   - 统一可点击链接的可用性表现（悬停下划线/颜色变化）
   - 不做的风险：备案信息等关键链接看起来像普通文字，用户不易发现且影响合规展示 */
.link {
    color: var(--link-text);
    text-decoration: none;
    border-bottom: 1px solid var(--link-border);
}

.link:hover {
    color: var(--link-hover-text);
    border-bottom-color: var(--link-hover-border);
}

/* 容器通用样式 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部样式 */
header {
    background: var(--header-bg);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.company-name {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 0.2px;
    color: var(--text);
}

.nav-links a {
    margin-left: 20px;
    color: var(--nav-text);
    transition: color 0.2s;
    position: relative;
}

.nav-links a:hover {
    color: var(--nav-hover-text);
}

/* 修改说明：
   - 右上角主题切换按钮：用图标按钮不占空间，符合“简洁大方”
   - 不做的风险：亮/暗主题无法快速切换，白天浏览对比度不舒适 */
.theme-toggle {
    margin-left: 14px;
    width: 38px;
    height: 38px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.06);
    color: var(--text);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.theme-toggle:hover {
    transform: translateY(-1px);
    background: rgba(255, 255, 255, 0.10);
}

.theme-toggle:active {
    transform: translateY(0);
}

.theme-toggle:focus-visible {
    outline: 3px solid rgba(79, 140, 255, 0.35);
    outline-offset: 2px;
}

/* 主页 Hero 区域 */
.hero {
    text-align: center;
    padding: 86px 0 64px;
    margin-bottom: 34px;
}

.hero h1 {
    font-size: 52px;
    margin-bottom: 20px;
    letter-spacing: -0.6px;
    line-height: 1.1;
}

.hero p {
    font-size: 18px;
    max-width: 600px;
    margin: 0 auto 22px;
    color: var(--text-muted);
}

/* 修改说明：
   - 增加徽章用于展示域名/能力标签，让信息更“公司官网化”
   - 不做的风险：首页信息密度低且缺少可信标识，视觉上更像个人项目页 */
.hero-badges {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--badge-bg);
    color: var(--badge-text);
    font-size: 13px;
}

.badge i {
    color: var(--badge-icon);
}

/* 软件列表区域 */
.section-title {
    text-align: center;
    margin-bottom: 40px;
    font-size: 34px;
    color: var(--text);
    letter-spacing: -0.2px;
}

.section-subtitle {
    text-align: center;
    margin: -28px auto 36px;
    max-width: 760px;
    color: var(--text-muted);
}

.section {
    padding: 20px 0 70px;
}

.section-muted {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.06) 0%, rgba(255, 255, 255, 0.02) 100%);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    padding-bottom: 10px;
}

.apps-grid--single {
    grid-template-columns: 1fr;
    justify-items: center;
}

.apps-grid--single.has-2-products {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 24px;
    max-width: 900px;
    margin: 0 auto;
}

.apps-grid--single.has-2-products .app-card {
    max-width: 100%;
}

.apps-grid--single .app-card {
    width: 100%;
    max-width: 520px;
    padding: 24px 22px 22px;
}

@media (max-width: 768px) {
    .apps-grid--single.has-2-products {
        grid-template-columns: 1fr !important;
    }
}

.app-card--featured {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
    text-align: center;
}

.app-card-media {
    flex: 0 0 auto;
}
/* 修改首页应用卡片图标圆角 */
.app-card--featured .app-icon {
    width: 120px;
    height: 120px;
    margin-bottom: 0;
    border-radius: 42px;
}

.app-card-body {
    flex: 1 1 auto;
    min-width: 0;
}

.app-card--featured .app-name {
    margin-bottom: 6px;
    font-size: 21px;
    letter-spacing: -0.2px;
}

.app-card--featured .app-desc {
    margin-bottom: 0;
}

.app-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 26px 24px 24px;
    text-align: center;
    transition: transform 0.25s, box-shadow 0.25s, background 0.25s;
    cursor: pointer;
    border: 1px solid var(--border);
    box-shadow: 0 8px 22px rgba(0, 0, 0, 0.14);
}

.app-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow);
    background: var(--card-bg-hover);
}

.app-icon {
    width: 100px;
    height: 100px;
    border-radius: 20px;
    margin-bottom: 20px;
    object-fit: cover;
    background: var(--icon-bg);
    border: 1px solid var(--icon-border);
}

.app-name {
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 10px;
    color: var(--text);
}

.app-desc {
    color: var(--text-muted);
    margin-bottom: 20px;
}

@media (max-width: 768px) {
    .app-card--featured {
        flex-direction: column;
        text-align: center;
        gap: 14px;
    }
}

.btn {
    display: inline-block;
    padding: 10px 25px;
    border-radius: 25px;
    font-weight: 500;
    transition: all 0.2s;
}

.btn-primary {
    background: linear-gradient(135deg, var(--brand) 0%, var(--brand-2) 100%);
    color: rgba(10, 16, 32, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.10);
}

.btn-primary:hover {
    filter: brightness(1.05);
    transform: translateY(-1px);
}

.btn-outline {
    border: 1px solid rgba(255, 255, 255, 0.24);
    color: rgba(255, 255, 255, 0.90);
    background: rgba(255, 255, 255, 0.06);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.10);
}

/* 修改说明：
   - 增加“能力/联系方式”等信息卡片，增强企业站可信度
   - 不做的风险：只有产品卡片，信息单薄，难以体现“软件开发公司”的能力与服务范围 */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 18px;
}

.info-card {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--card-bg);
    padding: 18px 18px 16px;
    box-shadow: 0 8px 22px rgba(0, 0, 0, 0.12);
}

.info-card-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 8px;
}

.info-card-title i {
    color: var(--text-muted);
}

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

.chips {
    margin-top: 12px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.chip {
    padding: 6px 10px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-muted);
    font-size: 12px;
}

/* 详情页样式 */
.app-detail-header {
    background: rgba(255, 255, 255, 0.05);
    padding: 60px 0 40px;
    text-align: center;
    border-bottom: 1px solid var(--border);
}
/* 修改详情页应用图标圆角 */
.app-detail-icon {
    width: 120px;
    height: 120px;
    border-radius: 42px;
    margin-bottom: 20px;
    box-shadow: 0 10px 26px rgba(0,0,0,0.22);
    border: 1px solid var(--icon-border);
}

.app-detail-title {
    font-size: 36px;
    color: var(--text);
    margin-bottom: 10px;
}

.app-detail-subtitle {
    font-size: 18px;
    color: var(--text-muted);
    margin-bottom: 30px;
}

.download-section {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
    margin-top: 30px;
}

.store-badge {
    height: 50px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.10);
    color: var(--text);
    display: flex;
    align-items: center;
    padding: 0 20px;
    font-size: 14px;
    transition: transform 0.2s, background 0.2s, opacity 0.2s;
    border: 1px solid var(--icon-border);
}

.store-badge:hover {
    opacity: 0.98;
    transform: translateY(-2px);
    background: rgba(255, 255, 255, 0.14);
}

.store-badge i {
    font-size: 24px;
    margin-right: 10px;
}

/* 修改说明：
   - 截图区域使用横向滚动 + scroll-snap，让多图在移动端更易浏览
   - 不做的风险：截图只能竖排堆叠，页面变长且用户不愿意滑到后面 */
.app-screenshots {
    padding: 10px 0 10px;
}

.screenshot-track {
    display: flex;
    gap: 14px;
    overflow-x: auto;
    padding: 6px 2px 14px;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
}

.screenshot-track::-webkit-scrollbar {
    height: 10px;
}

.screenshot-track::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 999px;
}

.screenshot-track::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.16);
    border-radius: 999px;
}

html[data-theme="light"] .screenshot-track::-webkit-scrollbar-track {
    background: rgba(11, 18, 32, 0.06);
}

html[data-theme="light"] .screenshot-track::-webkit-scrollbar-thumb {
    background: rgba(11, 18, 32, 0.14);
}

.screenshot-item {
    flex: 0 0 auto;
    width: min(var(--screenshot-display-width, 300px), 85vw);
    aspect-ratio: var(--screenshot-w, 1242) / var(--screenshot-h, 2688);
    border-radius: 18px;
    overflow: hidden;
    border: 1px solid var(--border);
    background: var(--card-bg);
    box-shadow: 0 10px 26px rgba(0, 0, 0, 0.14);
    scroll-snap-align: start;
}

.screenshot-img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 修改说明：
   - APK 下载按钮用独立样式类，避免在 HTML 里写行内样式，便于后续统一维护
   - 不做的风险：行内样式分散在页面中，后期改配色/风格容易漏改导致不一致 */
.store-badge--apk {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.95) 0%, rgba(16, 185, 129, 0.95) 100%);
    color: rgba(10, 16, 32, 0.95);
    border-color: rgba(255, 255, 255, 0.18);
}

.store-badge--apk:hover {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.98) 0%, rgba(16, 185, 129, 0.98) 100%);
}

.app-features {
    padding: 60px 0;
    background: transparent;
}

.feature-item {
    margin-bottom: 40px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.05);
    padding: 18px 18px 16px;
}

.feature-item h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: var(--text);
}

.feature-item p {
    color: var(--text-muted);
}

/* 修改说明：
   - 政策与协议区域：为 App 内跳转提供更易读的文本排版
   - 不做的风险：协议正文展示拥挤、层级不清晰，影响合规审查与用户阅读体验 */
.policy-section {
    padding-top: 10px;
}

.policy-links {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 10px;
}

.policy-docs {
    padding: 10px 0 40px;
}

.policy-doc {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--card-bg);
    box-shadow: 0 8px 22px rgba(0, 0, 0, 0.12);
    padding: 20px 18px 16px;
    margin-bottom: 16px;
}

.policy-doc h3 {
    font-size: 20px;
    color: var(--text);
    margin-bottom: 6px;
}

.policy-doc h4 {
    margin-top: 14px;
    margin-bottom: 6px;
    font-size: 15px;
    color: var(--text);
}

.policy-doc p {
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 10px;
}

.policy-doc ul {
    padding-left: 18px;
    margin: 8px 0 10px;
    color: var(--text-muted);
    font-size: 14px;
}

.policy-doc li {
    margin: 6px 0;
}

.policy-meta {
    color: var(--muted-text);
    font-size: 12px;
    margin-bottom: 12px;
}

.policy-back {
    margin-top: 10px;
}

/* 页脚 */
footer {
    background: var(--footer-bg);
    color: var(--text);
    border-top: 1px solid var(--border);
    padding: 40px 0;
    text-align: center;
}

footer p,
footer a {
    opacity: 0.88;
    font-size: 14px;
}

/* 修改说明：
   - 备案信息通常需要清晰、可点击、分行展示；否则用户难找且不利于合规检查
   - 不做的风险：备案信息不规范展示可能带来合规风险/影响信任度 */
.footer-meta {
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: center;
}

.footer-meta .muted {
    color: var(--muted-text);
}

.footer-beian {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
}

/* 修改说明：
   - 详情页底部的“政策/协议”链接：让三项链接紧凑排布且不抢占备案信息视觉层级
   - 不做的风险：链接与备案信息混在一起可读性差，用户难以快速找到政策入口 */
.footer-policy {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    color: var(--text-muted);
}

.footer-sep {
    color: var(--muted-text);
}

/* 修改说明：
   - 备案小图标与文字对齐并统一尺寸，避免图标撑高行高或偏移
   - 不做的风险：图标与文字不齐/尺寸不一致，影响底部观感 */
.beian-icon {
    width: 14px;
    height: 14px;
    margin-right: 6px;
    vertical-align: -2px;
    border: 0;
}

/* 响应式适配 */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 34px;
    }
    
    .apps-grid {
        grid-template-columns: 1fr;
    }
    
    .download-section {
        flex-direction: column;
        align-items: center;
    }
    
    .store-badge {
        width: 200px;
        justify-content: center;
    }
}

/* 企业信息卡片样式 */
.company-info-section {
    padding: 40px 0 60px;
    background: transparent;
}

.company-info-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    box-shadow: 0 8px 22px rgba(0, 0, 0, 0.12);
}

.company-info-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
}

.company-info-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--brand) 0%, var(--brand-2) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: rgba(10, 16, 32, 0.95);
}

.company-info-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text);
}

.company-info-subtitle {
    font-size: 14px;
    color: var(--text-muted);
    margin-top: 4px;
}

.company-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.company-info-item {
    display: flex;
    gap: 12px;
}

.company-info-item-icon {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: var(--surface);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--brand);
    font-size: 16px;
}

.company-info-item-content {
    flex: 1;
}

.company-info-item-label {
    font-size: 12px;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.company-info-item-value {
    font-size: 15px;
    color: var(--text);
    line-height: 1.5;
}

/* 业务范围展示样式 */
.services-section {
    padding: 40px 0 60px;
    background: transparent;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}

.service-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    transition: transform 0.25s, box-shadow 0.25s, background 0.25s;
}

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

.service-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(79, 140, 255, 0.15) 0%, rgba(34, 211, 238, 0.15) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: var(--brand);
    margin-bottom: 16px;
}

.service-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 8px;
}

.service-desc {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.6;
}

/* 关于我们页面样式 */
.about-hero {
    text-align: center;
    padding: 80px 0 60px;
}

.about-hero h1 {
    font-size: 48px;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.about-hero p {
    font-size: 18px;
    color: var(--text-muted);
    max-width: 640px;
    margin: 0 auto;
}

.about-section {
    padding: 40px 0;
}

.about-section-title {
    font-size: 28px;
    color: var(--text);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.about-section-title i {
    color: var(--brand);
}

.about-content {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    box-shadow: 0 8px 22px rgba(0, 0, 0, 0.12);
}

.about-content p {
    color: var(--text-muted);
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-content p:last-child {
    margin-bottom: 0;
}

.about-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.about-list li {
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.about-list li:last-child {
    border-bottom: none;
}

.about-list li i {
    color: var(--brand);
    margin-top: 4px;
    flex-shrink: 0;
}

.about-list li span {
    color: var(--text-muted);
    font-size: 15px;
    line-height: 1.6;
}

/* 资质认证样式 */
.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
}

.cert-item {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 14px;
}

.cert-icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: linear-gradient(135deg, rgba(79, 140, 255, 0.2) 0%, rgba(34, 211, 238, 0.2) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--brand);
    flex-shrink: 0;
}

.cert-content h4 {
    font-size: 15px;
    color: var(--text);
    margin-bottom: 4px;
}

.cert-content p {
    font-size: 13px;
    color: var(--text-muted);
    margin: 0;
}

/* 企业愿景样式 */
.vision-section {
    text-align: center;
    padding: 60px 0;
}

.vision-content {
    max-width: 720px;
    margin: 0 auto;
}

.vision-quote {
    font-size: 22px;
    color: var(--text);
    font-style: italic;
    line-height: 1.6;
    margin-bottom: 20px;
}

.vision-author {
    font-size: 14px;
    color: var(--text-muted);
}

/* 响应式适配补充 */
@media (max-width: 768px) {
    .company-info-header {
        flex-direction: column;
        text-align: center;
    }
    
    .company-info-grid {
        grid-template-columns: 1fr;
    }
    
    .about-hero h1 {
        font-size: 36px;
    }
    
    .vision-quote {
        font-size: 18px;
    }
}

/* 设备切换按钮样式 */
.device-tabs {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.device-tab {
    padding: 8px 20px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--card-bg);
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.device-tab:hover {
    background: var(--card-bg-hover);
    color: var(--text);
    border-color: var(--link-hover-border);
}

.device-tab.active {
    background: linear-gradient(135deg, var(--brand) 0%, var(--brand-2) 100%);
    color: rgba(10, 16, 32, 0.95);
    border-color: transparent;
    box-shadow: 0 4px 12px rgba(79, 140, 255, 0.25);
}

.device-tab i {
    font-size: 12px;
}

.device-tabs-hidden {
    display: none;
}

/* 截图容器过渡效果 */
.screenshot-track {
    transition: opacity 0.2s ease;
}

.screenshot-track.loading {
    opacity: 0.5;
}