/* ========================================
   宠运无忧 - 专业宠物运输网站
   配色方案（温暖信赖）：
   背景: #FAF6F0 (温暖米色)
   卡片: #FFFFFF
   主色: #B08968 (温暖棕褐色)
   辅助: #7B9F76 (柔和绿色)
   强调: #D08068 (陶土橙红)
   文字: #2D2926 (深棕黑)
   ======================================== */

/* ========== CSS变量 & 基础重置 ========== */
:root {
    --primary: #B08968;
    --primary-dark: #8B6F4E;
    --primary-darker: #6B543D;
    --primary-light: #F0E4D3;
    --primary-lighter: #FAF6F0;
    --secondary: #7B9F76;
    --secondary-dark: #5F8260;
    --secondary-light: #D8E3D2;
    --accent: #D08068;
    --accent-dark: #B86A52;
    --accent-light: #F0D9CF;
    --dark: #2D2926;
    --text: #5A524B;
    --text-light: #8C857D;
    --text-lighter: #B8B0A6;
    --bg: #FFFFFF;
    --bg-page: #FAF6F0;
    --bg-light: #F5EFE6;
    --bg-lighter: #EFE7D9;
    --border: #E5DDD0;
    --border-light: #F0E9DB;
    --shadow: 0 2px 20px rgba(45, 41, 38, 0.06);
    --shadow-lg: 0 8px 40px rgba(45, 41, 38, 0.08);
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 20px;
    --transition: all 0.3s ease;
    --font-base: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
    text-size-adjust: 100%;
    scroll-padding-top: 70px;
}

body {
    font-family: var(--font-base);
    color: var(--text);
    background: var(--bg-page);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overscroll-behavior-y: none;
}

a {
    text-decoration: none;
    color: inherit;
    -webkit-touch-callout: none;
}

ul { list-style: none; }

img {
    max-width: 100%;
    display: block;
    -webkit-touch-callout: none;
}

input, select, textarea, button {
    font-family: inherit;
    font-size: inherit;
    outline: none;
    border: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

/* iOS select 箭头恢复 */
select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%238C857D' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 36px !important;
}

/* ========== 布局工具 ========== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
}

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

.text-center { text-align: center; }

.mt-40 { margin-top: 40px; }

/* ========== 顶部信息栏 ========== */
.top-bar {
    background: var(--primary-darker);
    color: rgba(255,255,255,0.8);
    font-size: 13px;
    padding: 8px 0;
    display: none;
}

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

.top-bar-contact span {
    margin-left: 20px;
}

/* ========== 导航栏 ========== */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: saturate(180%) blur(8px);
    -webkit-backdrop-filter: saturate(180%) blur(8px);
    box-shadow: 0 1px 10px rgba(176, 137, 104, 0.08);
    border-bottom: 1px solid var(--border-light);
    transition: var(--transition);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-img {
    width: 44px;
    height: 44px;
    flex-shrink: 0;
    object-fit: contain;
}

.logo-icon {
    width: 50px;
    height: 50px;
    flex-shrink: 0;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--dark);
    line-height: 1.2;
    letter-spacing: 1px;
}

.logo-subtitle {
    font-size: 11px;
    color: var(--primary);
    letter-spacing: 2px;
    margin-top: 2px;
}

/* 导航菜单 */
.nav-list {
    display: flex;
    gap: 8px;
}

.nav-link {
    display: block;
    padding: 8px 16px;
    font-size: 15px;
    color: var(--text);
    border-radius: 6px;
    transition: var(--transition);
    font-weight: 500;
}

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

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--dark);
    border-radius: 2px;
    transition: var(--transition);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* 移动端导航遮罩 */
.nav-overlay {
    display: none;
}

/* 触摸优化 - 消除300ms点击延迟 */
.nav-link,
.filter-tab,
.page-item,
.share-btn,
.sidebar-tag,
.sidebar-news-item,
.quick-item,
.mobile-menu-btn,
.back-to-top,
.about-tab {
    touch-action: manipulation;
}

/* ========== 按钮 ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 12px 28px;
    border-radius: var(--radius-sm);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    touch-action: manipulation;
    -webkit-user-select: none;
    user-select: none;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(176, 137, 104, 0.3);
}

.btn-outline {
    background: transparent;
    color: #fff;
    border-color: rgba(255,255,255,0.6);
}

.btn-outline:hover {
    background: rgba(255,255,255,0.15);
    border-color: #fff;
}

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

.btn-outline-orange:hover {
    background: var(--primary);
    color: #fff;
}

.btn-sm {
    padding: 8px 18px;
    font-size: 14px;
    border-radius: 20px;
}

.btn-lg {
    padding: 16px 40px;
    font-size: 18px;
}

.btn-block {
    width: 100%;
}

/* ========== Section 标题 ========== */
.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 12px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    display: block;
    width: 50px;
    height: 3px;
    background: var(--primary);
    margin: 12px auto 0;
    border-radius: 2px;
}

.section-subtitle {
    font-size: 16px;
    color: var(--text-light);
    margin-top: 8px;
}

/* ========== Hero 首页横幅 ========== */
.hero {
    position: relative;
    background: linear-gradient(135deg, #B08968 0%, #8B6F4E 50%, #6B543D 100%);
    overflow: hidden;
}

.hero-slide {
    position: relative;
}

.hero-bg {
    position: absolute;
    inset: 0;
    opacity: 0.1;
    background:
        radial-gradient(circle at 20% 50%, var(--secondary) 0%, transparent 50%),
        radial-gradient(circle at 80% 30%, var(--accent) 0%, transparent 40%);
}

.hero-content {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 80px 20px 60px;
    min-height: 500px;
}

.hero-text {
    flex: 1;
    max-width: 560px;
    z-index: 1;
}

.hero-text h1 {
    font-size: 48px;
    font-weight: 800;
    color: #fff;
    line-height: 1.25;
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.hero-text p {
    font-size: 18px;
    color: rgba(255,255,255,0.7);
    margin-bottom: 36px;
    line-height: 1.8;
}

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

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-illustration {
    max-width: 400px;
    width: 100%;
    height: auto;
}

/* 数据统计 */
.hero-stats {
    background: rgba(45, 41, 38, 0.18);
    padding: 36px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.stats-row {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 30px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 36px;
    font-weight: 800;
    color: #FAF6F0;
    line-height: 1.2;
    text-shadow: 0 2px 6px rgba(45, 41, 38, 0.25);
}

.stat-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.78);
    margin-top: 4px;
}

/* ========== 服务项目 ========== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.service-card {
    background: var(--bg);
    border-radius: var(--radius);
    padding: 30px 24px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border-light);
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.service-icon {
    margin-bottom: 20px;
    display: flex;
    justify-content: center;
}

.service-card h3 {
    font-size: 18px;
    color: var(--dark);
    margin-bottom: 10px;
    font-weight: 700;
}

.service-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
    flex: 1;
}

.service-feature {
    background: var(--primary-light);
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 20px;
    margin: 16px auto 20px;
    display: inline-block;
}

.service-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ========== 服务优势 ========== */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.advantage-item {
    text-align: center;
    padding: 30px 20px;
}

.advantage-icon {
    margin-bottom: 16px;
}

.advantage-item h4 {
    font-size: 18px;
    color: var(--dark);
    margin-bottom: 10px;
}

.advantage-item p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
}

/* ========== 获取报价 ========== */
.quote-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}

.quote-form-area,
.quote-qr-area {
    background: var(--bg);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
}

.quote-form-area h3,
.quote-qr-area h3 {
    font-size: 22px;
    color: var(--dark);
    margin-bottom: 8px;
}

.quote-form-desc {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 24px;
}

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

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 15px;
    color: var(--text);
    background: var(--bg);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(176, 137, 104, 0.12);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

/* ========== 表单验证样式 ========== */
.required {
    color: var(--accent);
    margin-left: 2px;
}

.field-error {
    display: block;
    font-size: 13px;
    color: var(--accent);
    margin-top: 4px;
    min-height: 0;
    overflow: hidden;
    max-height: 0;
    opacity: 0;
    transition: max-height 0.2s ease, opacity 0.2s ease, margin-top 0.2s ease;
    line-height: 1.4;
}

.field-error::before {
    content: '';
    display: inline-block;
    width: 14px;
    height: 14px;
    margin-right: 4px;
    vertical-align: -2px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%23D08068'%3E%3Cpath fill-rule='evenodd' d='M10 18a8 8 0 100-16 8 8 0 000 16zM9 9a1 1 0 112 0v4a1 1 0 11-2 0V9zm1-4a1 1 0 100 2 1 1 0 000-2z' clip-rule='evenodd'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
}

.form-group.has-error .field-error {
    max-height: 30px;
    opacity: 1;
    margin-top: 6px;
}

.form-group.has-error input,
.form-group.has-error select,
.form-group.has-error textarea {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(208, 128, 104, 0.12);
}

.form-group.has-error input:focus,
.form-group.has-error select:focus,
.form-group.has-error textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(208, 128, 104, 0.18);
}

.form-group.is-valid input,
.form-group.is-valid select,
.form-group.is-valid textarea {
    border-color: var(--secondary);
}

.form-group.is-valid .field-error {
    max-height: 0;
    opacity: 0;
}

/* 提交按钮加载状态 */
.btn-block.is-loading {
    pointer-events: none;
    opacity: 0.7;
}

.btn-block.is-loading::after {
    content: '';
    display: inline-block;
    width: 16px;
    height: 16px;
    margin-left: 8px;
    border: 2px solid rgba(255,255,255,0.4);
    border-top-color: #fff;
    border-radius: 50%;
    animation: btn-spin 0.6s linear infinite;
    vertical-align: -3px;
}

@keyframes btn-spin {
    to { transform: rotate(360deg); }
}

/* 二维码区域 */
.qr-cards {
    display: flex;
    gap: 30px;
    margin-top: 24px;
}

.qr-card {
    flex: 1;
    text-align: center;
    padding: 20px;
    border: 1px solid var(--border-light);
    border-radius: var(--radius);
    transition: var(--transition);
}

.qr-card:hover {
    box-shadow: var(--shadow);
    border-color: var(--primary);
}

.qr-image {
    width: 160px;
    height: 160px;
    margin: 0 auto 16px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(45, 41, 38, 0.08);
}

.qr-placeholder {
    width: 100%;
    height: 100%;
}

.qr-label {
    text-align: center;
}

.qr-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 8px;
}

.qr-badge.wechat {
    background: #07c160;
}

.qr-badge.miniapp {
    background: #07c160;
}

.qr-label p {
    font-size: 13px;
    color: var(--text-light);
}

/* ========== 服务案例 ========== */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.case-card {
    background: var(--bg);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border-light);
}

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

.case-image {
    height: 200px;
    overflow: hidden;
    background: var(--bg-lighter);
}

.case-img-placeholder {
    width: 100%;
    height: 100%;
}

.case-content {
    padding: 20px;
}

.case-tag {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 4px;
    margin-right: 8px;
    font-weight: 600;
}

.case-id {
    font-size: 12px;
    color: var(--text-lighter);
}

.case-content h4 {
    font-size: 16px;
    color: var(--dark);
    margin: 12px 0 8px;
    line-height: 1.5;
}

.case-content p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.case-link {
    display: inline-block;
    margin-top: 12px;
    color: var(--accent);
    font-size: 14px;
    font-weight: 600;
    transition: var(--transition);
}

.case-link:hover {
    color: var(--accent-hover);
}

/* ========== 宠物资讯 ========== */
.news-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.news-card {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    background: var(--bg);
    border: 1px solid var(--border-light);
}

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

.news-image {
    position: relative;
    height: 240px;
    overflow: hidden;
    background: var(--bg-lighter);
}

.news-img-placeholder {
    width: 100%;
    height: 100%;
}

.news-tag {
    position: absolute;
    top: 16px;
    left: 16px;
    background: var(--accent);
    color: #fff;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
}

.news-content {
    padding: 20px;
}

.news-date {
    font-size: 12px;
    color: var(--text-lighter);
    margin-bottom: 8px;
    display: block;
}

.news-card h3 {
    font-size: 20px;
    color: var(--dark);
    margin-bottom: 10px;
    line-height: 1.5;
}

.news-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-link {
    display: inline-block;
    margin-top: 10px;
    color: var(--primary);
    font-size: 14px;
    font-weight: 600;
    transition: var(--transition);
}

.news-link:hover {
    color: var(--primary-dark);
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.news-item {
    padding: 20px;
    background: var(--bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border-light);
}

.news-item:hover {
    transform: translateX(4px);
    border-color: var(--primary);
}

.news-item h4 {
    font-size: 16px;
    color: var(--dark);
    margin-bottom: 6px;
    line-height: 1.5;
}

.news-item p {
    font-size: 13px;
    color: var(--text-light);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ========== 关于我们 ========== */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-illustration {
    width: 100%;
    height: auto;
}

.about-text h3 {
    font-size: 24px;
    color: var(--dark);
    margin-bottom: 16px;
}

.about-text > p {
    font-size: 15px;
    color: var(--text);
    line-height: 1.8;
    margin-bottom: 12px;
}

.about-tabs {
    display: flex;
    gap: 0;
    margin: 24px 0 16px;
    border-bottom: 2px solid var(--border);
}

.about-tab {
    padding: 10px 24px;
    background: none;
    border: none;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-light);
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    bottom: -2px;
    border-bottom: 2px solid transparent;
}

.about-tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.about-tab-content {
    display: none;
    font-size: 14px;
    color: var(--text);
    line-height: 1.8;
}

.about-tab-content.active {
    display: block;
}

.about-tab-content p {
    margin-bottom: 10px;
}

/* ========== 联系我们 ========== */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.contact-info,
.contact-form-area {
    background: var(--bg);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
}

.contact-info h3,
.contact-form-area h3 {
    font-size: 22px;
    color: var(--dark);
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--primary-light);
}

.contact-info-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-info-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: var(--primary-light);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-info-item h4 {
    font-size: 15px;
    color: var(--dark);
    margin-bottom: 4px;
}

.contact-info-item p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
}

.contact-form-area .form-group {
    margin-bottom: 16px;
}

.contact-form-area input,
.contact-form-area textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 15px;
    color: var(--text);
    transition: var(--transition);
    background: var(--bg-light);
}

.contact-form-area input:focus,
.contact-form-area textarea:focus {
    border-color: var(--primary);
    background: var(--bg);
    box-shadow: 0 0 0 3px rgba(176, 137, 104, 0.1);
}

.contact-form-area textarea {
    resize: vertical;
    min-height: 100px;
}

.contact-form-area .btn-block {
    margin-top: 8px;
}

/* ========== 合作伙伴 ========== */
.partners-row {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 30px;
}

.partner-item {
    opacity: 0.6;
    transition: var(--transition);
    filter: grayscale(100%);
}

.partner-item:hover {
    opacity: 1;
    filter: grayscale(0%);
}

/* ========== 页脚 ========== */
.footer {
    background: var(--primary-darker);
    color: rgba(255,255,255,0.72);
    padding: 60px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    margin-top: 12px;
}

.footer-social {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

.social-link {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.7);
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary);
    color: #fff;
}

.footer-col h4 {
    color: #fff;
    font-size: 16px;
    margin-bottom: 20px;
    font-weight: 600;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a {
    color: rgba(255,255,255,0.6);
    font-size: 14px;
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: var(--primary);
    padding-left: 4px;
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 8px;
    color: rgba(255,255,255,0.6);
    font-size: 14px;
    margin-bottom: 10px;
}

.footer-bottom {
    padding: 24px 0;
    text-align: center;
    font-size: 13px;
    color: rgba(255,255,255,0.4);
}

.footer-bottom a {
    color: rgba(255,255,255,0.5);
    transition: var(--transition);
}

.footer-bottom a:hover {
    color: var(--primary);
}

/* ========== 移动端底部快捷栏 ========== */
.mobile-quick-bar {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-top: 1px solid var(--border-light);
    padding: 6px 0 env(safe-area-inset-bottom, 8px);
    z-index: 999;
    box-shadow: 0 -2px 12px rgba(176, 137, 104, 0.08);
}

.quick-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    color: var(--text-light);
    font-size: 11px;
    padding: 6px 0;
    transition: var(--transition);
}

.quick-item:hover {
    color: var(--primary);
}

.quick-cta {
    position: relative;
}

.quick-cta-icon {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    margin-top: -18px;
    box-shadow: 0 4px 15px rgba(176, 137, 104, 0.4);
}

.quick-cta span {
    color: var(--primary);
    font-weight: 600;
}

/* ========== 回到顶部 ========== */
.back-to-top {
    position: fixed;
    bottom: 100px;
    right: 24px;
    width: 44px;
    height: 44px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 998;
    color: var(--text-light);
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    box-shadow: var(--shadow);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

/* ========== 表单提交提示 ========== */
.form-toast {
    position: fixed;
    top: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(-20px);
    padding: 14px 28px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    z-index: 9999;
    opacity: 0;
    transition: opacity 0.3s ease, transform 0.3s ease;
    box-shadow: var(--shadow-lg);
}

.form-toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.form-toast.success {
    background: var(--secondary-dark);
}

.form-toast.error {
    background: var(--accent);
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

/* ========== 响应式设计 - 平板 ========== */
@media screen and (max-width: 1024px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
        padding: 60px 20px 40px;
    }

    .hero-text {
        max-width: 100%;
        margin-bottom: 40px;
    }

    .hero-btns {
        justify-content: center;
    }

    .hero-illustration {
        max-width: 300px;
    }

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

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

    .quote-wrapper {
        grid-template-columns: 1fr;
    }

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

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

    .about-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .about-illustration {
        max-width: 400px;
        margin: 0 auto;
    }

    .about-tabs {
        justify-content: center;
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
    }

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

    .stats-row {
        justify-content: center;
    }
}

/* ========== 响应式设计 - 手机 ========== */
@media screen and (max-width: 768px) {
    .top-bar {
        display: none;
    }

    .container {
        padding: 0 16px;
    }

    .section {
        padding: 44px 0;
    }

    .section-title {
        font-size: 24px;
    }

    .section-subtitle {
        font-size: 14px;
    }

    .section-header {
        margin-bottom: 28px;
    }

    /* 移动端导航 */
    .nav-overlay {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(45, 41, 38, 0.5);
        backdrop-filter: blur(2px);
        -webkit-backdrop-filter: blur(2px);
        z-index: 999;
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.3s ease, visibility 0.3s ease;
    }

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

    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 340px;
        height: 100vh;
        height: 100dvh;
        background: var(--bg);
        box-shadow: -4px 0 30px rgba(45, 41, 38, 0.15);
        transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 1000;
        padding: 80px 24px 30px;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        padding-top: max(80px, env(safe-area-inset-top, 80px));
        padding-bottom: max(30px, env(safe-area-inset-bottom, 30px));
    }

    .nav.active {
        right: 0;
    }

    .nav-list {
        flex-direction: column;
        gap: 4px;
    }

    .nav-link {
        padding: 14px 16px;
        font-size: 16px;
        border-radius: var(--radius-sm);
        min-height: 48px;
        display: flex;
        align-items: center;
    }

    .mobile-menu-btn {
        display: flex;
        padding: 10px;
    }

    .header .container {
        height: 56px;
    }

    .logo-icon {
        width: 36px;
        height: 36px;
    }

    .logo-title {
        font-size: 17px;
    }

    .logo-subtitle {
        font-size: 10px;
    }

    /* Hero */
    .hero-content {
        padding: 36px 16px 28px;
        min-height: auto;
    }

    .hero-text h1 {
        font-size: 26px;
        line-height: 1.35;
    }

    .hero-text p {
        font-size: 14px;
    }

    .hero-btns {
        flex-direction: column;
        gap: 10px;
    }

    .hero-btns .btn {
        width: 100%;
        min-height: 48px;
        font-size: 15px;
    }

    .hero-illustration {
        max-width: 200px;
    }

    .hero-stats {
        padding: 20px 0;
    }

    .stats-row {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 20px 12px;
    }

    .stat-item {
        text-align: center;
    }

    .stat-number {
        font-size: 24px;
    }

    .stat-label {
        font-size: 12px;
    }

    /* 服务 */
    .services-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .service-card {
        padding: 24px 20px;
    }

    .service-icon {
        width: 52px;
        height: 52px;
    }

    .service-card h3 {
        font-size: 18px;
    }

    .service-card p {
        font-size: 14px;
    }

    .service-btns {
        flex-direction: column;
        gap: 8px;
    }

    .service-btns .btn {
        width: 100%;
        text-align: center;
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    /* 优势 */
    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .advantage-item {
        padding: 20px 16px;
        display: flex;
        align-items: flex-start;
        gap: 14px;
    }

    .advantage-icon {
        width: 44px;
        height: 44px;
        flex-shrink: 0;
    }

    .advantage-item h4 {
        font-size: 16px;
    }

    .advantage-item p {
        font-size: 13px;
    }

    /* 报价 */
    .quote-wrapper {
        gap: 20px;
    }

    .quote-form-area,
    .quote-qr-area {
        padding: 24px 16px;
    }

    .quote-form-area h3,
    .quote-qr-area h3 {
        font-size: 18px;
    }

    .quote-form .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .quote-form .form-group input,
    .quote-form .form-group select,
    .quote-form .form-group textarea {
        min-height: 48px;
        font-size: 16px; /* 防止 iOS 自动缩放 */
    }

    .contact-form-area input,
    .contact-form-area textarea {
        min-height: 48px;
        font-size: 16px;
    }

    .quote-form .btn-block {
        min-height: 50px;
        font-size: 16px;
        margin-top: 8px;
    }

    .contact-form .btn-block {
        min-height: 50px;
        font-size: 16px;
    }

    .qr-cards {
        flex-direction: row;
        justify-content: center;
        gap: 16px;
    }

    .qr-card {
        padding: 16px 12px;
        flex: 1;
        max-width: 160px;
    }

    .qr-image {
        width: 130px;
        height: 130px;
    }

    /* 案例 */
    .cases-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .case-card .case-image {
        height: 180px;
    }

    .case-card .case-content {
        padding: 18px 16px;
    }

    .case-card h3 {
        font-size: 16px;
    }

    .case-card p {
        font-size: 14px;
    }

    /* 关于 */
    .about-text h3 {
        font-size: 19px;
    }

    .about-tabs {
        gap: 0;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        flex-wrap: nowrap;
        padding-bottom: 4px;
        -ms-overflow-style: none;
        scrollbar-width: none;
    }

    .about-tabs::-webkit-scrollbar {
        display: none;
    }

    .about-tab {
        padding: 10px 14px;
        font-size: 14px;
        white-space: nowrap;
        flex-shrink: 0;
    }

    .about-tab-content {
        font-size: 14px;
    }

    /* 联系 */
    .contact-info,
    .contact-form-area {
        padding: 24px 16px;
    }

    .contact-info-item {
        gap: 12px;
    }

    .contact-info-item .icon {
        width: 40px;
        height: 40px;
        flex-shrink: 0;
    }

    /* 页脚 */
    .footer {
        padding: 36px 0 calc(80px + env(safe-area-inset-bottom, 0px));
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
        padding-bottom: 28px;
    }

    .footer-col h4 {
        font-size: 15px;
        margin-bottom: 12px;
    }

    .footer-col ul li {
        margin-bottom: 8px;
    }

    .footer-col ul li a,
    .footer-col p {
        font-size: 13px;
    }

    .footer-bottom {
        padding-top: 20px;
        font-size: 12px;
        line-height: 1.8;
    }

    .partners-row {
        gap: 12px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .partner-item svg {
        width: 100px;
        height: 42px;
    }

    /* 移动端快捷栏 */
    .mobile-quick-bar {
        display: flex;
        justify-content: space-around;
        align-items: center;
        padding-bottom: env(safe-area-inset-bottom, 8px);
    }

    .quick-item {
        padding: 8px 4px;
        min-height: 48px;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        flex: 1;
    }

    .quick-item span {
        font-size: 11px;
    }

    .quick-cta-icon {
        width: 40px;
        height: 40px;
        margin-top: -14px;
    }

    /* 回到顶部移动位置 */
    .back-to-top {
        bottom: calc(85px + env(safe-area-inset-bottom, 0px));
        right: 14px;
        width: 38px;
        height: 38px;
    }

    /* 弹窗移动端适配 */
    .qr-card {
        padding: 16px;
    }

    /* 按钮通用 */
    .btn {
        min-height: 44px;
    }

    .btn-lg {
        padding: 12px 24px;
        font-size: 15px;
    }

    /* Toast 移动端 */
    .form-toast {
        top: 16px;
        left: 16px;
        right: 16px;
        transform: translateY(-20px);
        padding: 12px 20px;
        font-size: 14px;
        text-align: center;
    }

    .form-toast.show {
        transform: translateY(0);
    }
}

@media screen and (max-width: 480px) {
    .container {
        padding: 0 14px;
    }

    .section {
        padding: 36px 0;
    }

    .hero-text h1 {
        font-size: 22px;
    }

    .hero-btns .btn {
        padding: 12px 20px;
        font-size: 14px;
    }

    .section-title {
        font-size: 20px;
    }

    .section-header {
        margin-bottom: 24px;
    }

    .stats-row {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px 8px;
    }

    .stat-number {
        font-size: 22px;
    }

    .stat-label {
        font-size: 11px;
    }

    .hero-illustration {
        max-width: 170px;
    }

    .service-card {
        padding: 20px 16px;
    }

    .advantage-item {
        padding: 16px 12px;
    }

    .quote-form-area,
    .quote-qr-area {
        padding: 20px 14px;
    }

    .qr-cards {
        flex-direction: column;
        align-items: center;
    }

    .qr-card {
        max-width: 100%;
        width: 100%;
    }

    .qr-image {
        width: 120px;
        height: 120px;
    }

    .about-illustration {
        max-width: 240px;
    }

    .partner-item svg {
        width: 88px;
        height: 38px;
    }

    .logo-subtitle {
        display: none;
    }

    .back-to-top {
        bottom: calc(80px + env(safe-area-inset-bottom, 0px));
        right: 12px;
        width: 36px;
        height: 36px;
    }
}

/* 超小屏幕适配 */
@media screen and (max-width: 360px) {
    .hero-text h1 {
        font-size: 20px;
    }

    .stats-row {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .stat-number {
        font-size: 20px;
    }

    .section-title {
        font-size: 19px;
    }

    .logo-title {
        font-size: 16px;
    }

    .logo-icon {
        width: 32px;
        height: 32px;
    }

    .quick-item span {
        font-size: 10px;
    }

    .partner-item svg {
        width: 80px;
        height: 34px;
    }
}

/* ============================================
   内页通用样式
   页面横幅 / 面包屑 / 筛选 / 分页
   ============================================ */

/* ========== 内页横幅 ========== */
.page-banner {
    background: linear-gradient(135deg, #B08968 0%, #8B6F4E 50%, #6B543D 100%);
    padding: 80px 0 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 15% 50%, rgba(123, 159, 118, 0.25) 0%, transparent 45%),
        radial-gradient(circle at 85% 30%, rgba(208, 128, 104, 0.2) 0%, transparent 40%);
}

.page-banner-content {
    position: relative;
    z-index: 1;
}

.page-banner h1 {
    font-size: 38px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 12px;
    letter-spacing: 1px;
}

.page-banner p {
    font-size: 16px;
    color: rgba(255,255,255,0.6);
}

/* ========== 面包屑导航 ========== */
.breadcrumb {
    background: var(--bg-light);
    padding: 14px 0;
    border-bottom: 1px solid var(--border-light);
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-light);
    flex-wrap: wrap;
}

.breadcrumb-list a {
    color: var(--text-light);
    transition: var(--transition);
}

.breadcrumb-list a:hover {
    color: var(--primary);
}

.breadcrumb-separator {
    color: var(--text-lighter);
}

.breadcrumb-current {
    color: var(--primary);
    font-weight: 600;
}

/* ========== 筛选栏 ========== */
.filter-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 36px;
    padding: 16px 24px;
    background: var(--bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
}

.filter-tabs {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.filter-tab {
    padding: 8px 20px;
    background: var(--bg-light);
    border: 1px solid var(--border-light);
    border-radius: 20px;
    font-size: 14px;
    color: var(--text);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.filter-tab:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.filter-tab.active {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

.filter-info {
    font-size: 14px;
    color: var(--text-light);
}

.filter-info span {
    color: var(--primary);
    font-weight: 600;
}

/* ========== 分页控件 ========== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 50px;
    flex-wrap: wrap;
}

.page-item {
    min-width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg);
    color: var(--text);
    font-size: 15px;
    cursor: pointer;
    transition: var(--transition);
    padding: 0 12px;
}

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

.page-item.active {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
    font-weight: 600;
}

.page-item.disabled {
    color: var(--text-lighter);
    cursor: not-allowed;
    background: var(--bg-light);
}

.page-item svg {
    width: 16px;
    height: 16px;
}

.page-ellipsis {
    color: var(--text-lighter);
    padding: 0 4px;
}

/* ========== 案例列表页 ========== */
.cases-page .cases-grid {
    grid-template-columns: repeat(3, 1fr);
}

.cases-page .case-card {
    cursor: pointer;
}

/* ========== 资讯列表页 ========== */
.news-page-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.news-page-card {
    background: var(--bg);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border-light);
    display: flex;
    flex-direction: column;
}

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

.news-page-card .news-image {
    height: 220px;
    flex-shrink: 0;
}

.news-page-card .news-content {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.news-page-card .news-content h3 {
    font-size: 18px;
}

.news-page-card .news-content p {
    flex: 1;
}

.news-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-light);
    font-size: 13px;
    color: var(--text-lighter);
}

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

/* ========== 新闻详情页 ========== */
.news-detail {
    padding: 60px 0;
}

.news-detail-wrapper {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 40px;
    align-items: start;
}

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

.article-header {
    margin-bottom: 30px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-light);
}

.article-tags {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

.article-tag {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 13px;
    padding: 4px 12px;
    border-radius: 4px;
    font-weight: 600;
}

.article-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--dark);
    line-height: 1.4;
    margin-bottom: 16px;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
    font-size: 14px;
    color: var(--text-light);
}

.article-meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.article-meta-item svg {
    width: 16px;
    height: 16px;
    stroke: var(--primary);
}

.article-cover {
    width: 100%;
    height: 360px;
    border-radius: var(--radius);
    overflow: hidden;
    margin-bottom: 30px;
    background: var(--bg-lighter);
}

.article-cover svg {
    width: 100%;
    height: 100%;
}

.article-body {
    font-size: 16px;
    line-height: 1.9;
    color: var(--text);
}

.article-body h2 {
    font-size: 22px;
    color: var(--dark);
    margin: 32px 0 16px;
    font-weight: 700;
    padding-left: 14px;
    border-left: 4px solid var(--primary);
}

.article-body h3 {
    font-size: 18px;
    color: var(--dark);
    margin: 24px 0 12px;
    font-weight: 600;
}

.article-body p {
    margin-bottom: 18px;
}

.article-body ul,
.article-body ol {
    margin: 0 0 18px 20px;
}

.article-body li {
    margin-bottom: 8px;
    line-height: 1.8;
}

.article-body blockquote {
    background: var(--primary-lighter);
    border-left: 4px solid var(--primary);
    padding: 16px 24px;
    margin: 24px 0;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    color: var(--text);
    font-style: italic;
}

.article-body strong {
    color: var(--dark);
    font-weight: 600;
}

.article-body img {
    width: 100%;
    border-radius: var(--radius-sm);
    margin: 20px 0;
}

.article-figure {
    margin: 24px 0;
    text-align: center;
}

.article-figure svg {
    width: 100%;
    max-height: 280px;
    border-radius: var(--radius-sm);
}

.article-figure figcaption {
    font-size: 13px;
    color: var(--text-light);
    margin-top: 8px;
}

/* 文章底部 */
.article-footer {
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid var(--border-light);
}

.article-share {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 30px;
}

.article-share-label {
    font-size: 14px;
    color: var(--text-light);
    font-weight: 600;
}

.share-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-light);
    color: var(--text-light);
    transition: var(--transition);
    cursor: pointer;
}

.share-btn:hover {
    background: var(--primary);
    color: #fff;
}

.share-btn svg {
    width: 18px;
    height: 18px;
}

/* 上一篇/下一篇 */
.article-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.article-nav-item {
    padding: 20px;
    border: 1px solid var(--border-light);
    border-radius: var(--radius);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.article-nav-item:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow);
}

.article-nav-item.next {
    text-align: right;
}

.article-nav-label {
    font-size: 13px;
    color: var(--text-lighter);
    display: flex;
    align-items: center;
    gap: 4px;
}

.article-nav-item.next .article-nav-label {
    justify-content: flex-end;
}

.article-nav-title {
    font-size: 15px;
    color: var(--dark);
    font-weight: 600;
    line-height: 1.5;
    transition: var(--transition);
}

.article-nav-item:hover .article-nav-title {
    color: var(--primary);
}

/* 侧边栏 */
.article-sidebar {
    display: flex;
    flex-direction: column;
    gap: 24px;
    position: sticky;
    top: 90px;
}

.sidebar-card {
    background: var(--bg);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
}

.sidebar-card h4 {
    font-size: 18px;
    color: var(--dark);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--primary-light);
    position: relative;
}

.sidebar-card h4::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--primary);
}

.sidebar-news-item {
    display: flex;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-light);
    transition: var(--transition);
}

.sidebar-news-item:last-child {
    border-bottom: none;
}

.sidebar-news-item:hover h5 {
    color: var(--primary);
}

.sidebar-news-thumb {
    width: 80px;
    height: 60px;
    border-radius: 6px;
    overflow: hidden;
    flex-shrink: 0;
    background: var(--bg-lighter);
}

.sidebar-news-thumb svg {
    width: 100%;
    height: 100%;
}

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

.sidebar-news-info h5 {
    font-size: 14px;
    color: var(--dark);
    line-height: 1.4;
    margin-bottom: 4px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: var(--transition);
}

.sidebar-news-info span {
    font-size: 12px;
    color: var(--text-lighter);
}

.sidebar-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.sidebar-tag {
    padding: 6px 14px;
    background: var(--bg-light);
    border-radius: 16px;
    font-size: 13px;
    color: var(--text);
    transition: var(--transition);
    cursor: pointer;
}

.sidebar-tag:hover {
    background: var(--primary);
    color: #fff;
}

.sidebar-contact {
    text-align: center;
}

.sidebar-contact h4 {
    text-align: left;
}

.sidebar-contact-phone {
    font-size: 24px;
    font-weight: 800;
    color: var(--primary);
    margin: 12px 0 8px;
}

.sidebar-contact-desc {
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 16px;
}

/* ========== 内页响应式 ========== */
@media screen and (max-width: 1024px) {
    .news-page-grid {
        grid-template-columns: 1fr;
    }

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

    .article-sidebar {
        position: static;
    }

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

@media screen and (max-width: 768px) {
    .page-banner {
        padding: 44px 0 36px;
    }

    .page-banner h1 {
        font-size: 24px;
    }

    .page-banner p {
        font-size: 14px;
    }

    .breadcrumb {
        padding: 10px 0;
    }

    .breadcrumb-list {
        font-size: 13px;
        gap: 6px;
    }

    .article-main {
        padding: 20px 16px;
    }

    .article-title {
        font-size: 20px;
        line-height: 1.45;
    }

    .article-meta {
        gap: 12px;
        font-size: 13px;
    }

    .article-body {
        font-size: 15px;
        line-height: 1.85;
    }

    .article-body h2 {
        font-size: 17px;
        margin: 24px 0 14px;
        padding-left: 12px;
    }

    .article-body h3 {
        font-size: 16px;
        margin: 20px 0 10px;
    }

    .article-body p {
        margin-bottom: 14px;
    }

    .article-body ul,
    .article-body ol {
        margin: 0 0 14px 16px;
    }

    .article-body blockquote {
        padding: 14px 18px;
        margin: 18px 0;
    }

    .article-cover {
        height: 180px;
        margin-bottom: 20px;
    }

    .article-figure svg {
        max-height: 200px;
    }

    .article-footer {
        margin-top: 30px;
        padding-top: 20px;
    }

    .article-share {
        gap: 10px;
        margin-bottom: 24px;
    }

    .share-btn {
        width: 40px;
        height: 40px;
    }

    .article-nav {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .article-nav-item {
        padding: 16px 14px;
    }

    .article-nav-item.next {
        text-align: left;
    }

    .article-nav-item.next .article-nav-label {
        justify-content: flex-start;
    }

    .article-nav-title {
        font-size: 14px;
    }

    .cases-page .cases-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .news-page-card .news-image {
        height: 160px;
    }

    .news-page-card .news-content {
        padding: 18px 16px;
    }

    .news-page-card .news-content h3 {
        font-size: 16px;
    }

    .news-page-card .news-content p {
        font-size: 14px;
    }

    .news-meta {
        gap: 10px;
        font-size: 12px;
    }

    .filter-bar {
        padding: 12px 14px;
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .filter-tabs {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        flex-wrap: nowrap;
        width: 100%;
        -ms-overflow-style: none;
        scrollbar-width: none;
        padding-bottom: 2px;
    }

    .filter-tabs::-webkit-scrollbar {
        display: none;
    }

    .filter-tab {
        padding: 8px 16px;
        font-size: 13px;
        white-space: nowrap;
        flex-shrink: 0;
        min-height: 36px;
        display: flex;
        align-items: center;
    }

    .pagination {
        gap: 6px;
        margin-top: 36px;
    }

    .page-item {
        min-width: 38px;
        height: 38px;
        font-size: 14px;
    }

    .sidebar-card {
        padding: 18px 16px;
    }

    .sidebar-card h4 {
        font-size: 16px;
    }

    .sidebar-news-thumb {
        width: 64px;
        height: 48px;
    }

    .sidebar-news-info h5 {
        font-size: 13px;
    }

    .sidebar-contact-phone {
        font-size: 20px;
    }

    .sidebar-tag {
        padding: 6px 12px;
        font-size: 12px;
    }
}

@media screen and (max-width: 480px) {
    .page-banner {
        padding: 36px 0 30px;
    }

    .page-banner h1 {
        font-size: 20px;
    }

    .page-banner p {
        font-size: 13px;
    }

    .article-main {
        padding: 16px 12px;
    }

    .article-title {
        font-size: 18px;
    }

    .article-cover {
        height: 150px;
    }

    .article-body {
        font-size: 14px;
    }

    .article-body h2 {
        font-size: 16px;
    }

    .article-body h3 {
        font-size: 15px;
    }

    .news-page-card .news-image {
        height: 140px;
    }

    .page-item {
        min-width: 34px;
        height: 34px;
        font-size: 13px;
        padding: 0 6px;
    }

    .page-ellipsis {
        padding: 0 2px;
    }
}

/* ========== 触摸设备优化 ========== */
@media (hover: none) {
    /* 触摸设备上禁用 hover 变换效果，避免点击后卡在 hover 状态 */
    .btn-primary:hover,
    .btn-outline:hover,
    .btn-outline-orange:hover,
    .service-card:hover,
    .case-card:hover,
    .news-card:hover,
    .news-page-card:hover,
    .article-nav-item:hover,
    .partner-item:hover,
    .filter-tab:hover,
    .sidebar-tag:hover,
    .share-btn:hover,
    .sidebar-news-item:hover h5 {
        transform: none;
        box-shadow: var(--shadow);
    }

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

    .quick-item:hover {
        color: var(--text-light);
    }

    .quick-item:active {
        color: var(--primary);
    }
}

/* ========== 横屏适配 ========== */
@media screen and (max-width: 896px) and (orientation: landscape) {
    .nav {
        padding-top: 60px;
    }

    .hero-content {
        padding: 24px 16px;
        min-height: 100vh;
        min-height: 100dvh;
    }

    .hero-illustration {
        max-width: 160px;
    }

    .stats-row {
        gap: 16px;
    }

    .section {
        padding: 32px 0;
    }
}

/* ========== 打印优化 ========== */
@media print {
    .header, .nav, .mobile-quick-bar, .back-to-top, .footer, .hero-btns, .quote-qr-area, .nav-overlay {
        display: none !important;
    }

    body {
        background: #fff;
        color: #000;
    }

    .section {
        padding: 20px 0;
    }
}