/* ============================================================
   [公司名称] 企业官网 — 主样式表
   白蓝配色，圆通风格参考设计
   ============================================================ */

/* === CSS Variables === */
:root {
    --color-primary: #1a56db;
    --color-primary-dark: #1243b5;
    --color-primary-light: #e8f0fe;
    --color-accent: #f97316;
    --color-bg: #ffffff;
    --color-bg-alt: #f5f7fa;
    --color-bg-gray: #f0f2f5;
    --color-text: #1a1a2e;
    --color-text-secondary: #4a5568;
    --color-text-light: #718096;
    --color-border: #e2e8f0;
    --color-white: #ffffff;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.12);
    --radius-sm: 6px;
    --radius: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --max-width: 1200px;
    --header-height: 76px;
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.7;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

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

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

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

ul {
    list-style: none;
}

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

/* ================================================================
   1. HEADER — 动态导航栏
   ================================================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent;
    transition: all var(--transition-normal);
}

.header.scrolled {
    border-bottom-color: var(--color-border);
    box-shadow: var(--shadow-sm);
}

.header .container {
    display: flex;
    align-items: center;
    height: 100%;
    gap: 32px;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    color: var(--color-text);
    flex-shrink: 0;
}

.header-logo img {
    height: 38px;
    width: auto;
}

/* Main Navigation */
.header-nav {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
    justify-content: center;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 10px 18px;
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    cursor: pointer;
    white-space: nowrap;
}

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

.nav-link .arrow {
    width: 14px;
    height: 14px;
    transition: transform var(--transition-fast);
}

.nav-item:hover .nav-link .arrow {
    transform: rotate(180deg);
}

/* Dropdown Menu */
.nav-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    min-width: 180px;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 8px;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
}

.nav-item:hover .nav-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.nav-dropdown a {
    display: block;
    padding: 10px 16px;
    font-size: 14px;
    color: var(--color-text-secondary);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.nav-dropdown a:hover {
    background: var(--color-bg-alt);
    color: var(--color-primary);
}

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

.header-phone {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 16px;
    font-weight: 600;
    color: var(--color-primary);
    white-space: nowrap;
}

.header-contact-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 22px;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 600;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.header-contact-btn:hover {
    background: var(--color-primary-dark);
    color: var(--color-white);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.header-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    color: var(--color-text);
}

/* Mobile Header */
@media (max-width: 1024px) {
    .header .container {
        gap: 16px;
    }
    .header-nav {
        gap: 0;
    }
    .nav-link {
        padding: 8px 12px;
        font-size: 14px;
    }
    .header-phone {
        display: none;
    }
}

@media (max-width: 768px) {
    .header .container {
        justify-content: space-between;
    }

    .header-logo {
        font-size: 14px;
        white-space: normal;
        word-break: keep-all;
        line-height: 1.3;
    }

    .header-nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--color-white);
        flex-direction: column;
        align-items: stretch;
        padding: 8px 0;
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow-md);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: all var(--transition-normal);
        max-height: calc(100vh - var(--header-height));
        overflow-y: auto;
    }

    .header-nav.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }

    .nav-item {
        position: static;
    }

    .nav-link {
        padding: 14px 24px;
        border-radius: 0;
        font-size: 15px;
        justify-content: space-between;
    }

    .nav-dropdown {
        position: static;
        transform: none;
        opacity: 1;
        visibility: visible;
        box-shadow: none;
        border: none;
        padding: 4px 0 8px 32px;
        display: block;
        background: var(--color-bg-alt);
    }

    .nav-dropdown a {
        padding: 10px 16px;
        font-size: 14px;
    }

    .header-phone {
        display: none;
    }

    .header-contact-btn {
        display: none;
    }

    .header-menu-btn {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 42px;
        height: 42px;
        border-radius: var(--radius);
        background: var(--color-primary-light);
        color: var(--color-primary);
        flex-shrink: 0;
    }

    .header-menu-btn svg {
        width: 22px;
        height: 22px;
    }
}

/* ================================================================
   2. CAROUSEL — 首页轮播图
   ================================================================ */
.carousel {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
    margin-top: 0;
}

.carousel-track {
    display: flex;
    height: 100%;
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.carousel-slide {
    flex: 0 0 100%;
    height: 100%;
    position: relative;
    display: flex;
    align-items: center;
    background-size: cover;
    background-position: center;
}

/* 暗色遮罩层，确保文字可读 */
.carousel-slide::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.35);
    z-index: 1;
}

/* 文字改为白色以适配图片背景 */
.carousel-slide .carousel-content h2 {
    color: #ffffff;
}
.carousel-slide .carousel-content h2 span {
    color: #93c5fd;
}
.carousel-slide .carousel-content p {
    color: rgba(255, 255, 255, 0.9);
}
.carousel-slide .btn-outline {
    background: transparent;
    color: #ffffff;
    border-color: #ffffff;
}
.carousel-slide .btn-outline:hover {
    background: rgba(255, 255, 255, 0.15);
    color: #ffffff;
}

.carousel-content {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 80px 24px 0;
    position: relative;
    z-index: 2;
}

.carousel h2 {
    font-size: 44px;
    font-weight: 800;
    color: var(--color-text);
    line-height: 1.25;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
    max-width: 600px;
}

.carousel h2 span {
    color: var(--color-primary);
}

.carousel p {
    font-size: 18px;
    color: var(--color-text-secondary);
    max-width: 520px;
    margin-bottom: 32px;
    line-height: 1.8;
}

.carousel-buttons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.carousel .btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: var(--radius);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.carousel .btn-primary {
    background: var(--color-primary);
    color: var(--color-white);
}

.carousel .btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: var(--color-white);
}

.carousel .btn-outline {
    background: var(--color-white);
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.carousel .btn-outline:hover {
    background: var(--color-primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Carousel Controls */
.carousel-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.85);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--color-text);
}

.carousel-arrow:hover {
    background: var(--color-white);
    box-shadow: var(--shadow-md);
    color: var(--color-primary);
}

.carousel-arrow.prev { left: 24px; }
.carousel-arrow.next { right: 24px; }

.carousel-dots {
    position: absolute;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.carousel-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.15);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.carousel-dot.active {
    background: var(--color-primary);
    width: 28px;
    border-radius: 6px;
}

/* Scroll-down hint */
.carousel-scroll-hint {
    position: absolute;
    bottom: 56px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 13px;
    cursor: pointer;
    animation: scroll-hint-fade 3s ease-in-out infinite;
}
.carousel-scroll-hint svg {
    width: 22px;
    height: 22px;
    animation: scroll-bounce 1.6s ease-in-out infinite;
}
@keyframes scroll-bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(8px); }
}
@keyframes scroll-hint-fade {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 1; }
}

/* Carousel Responsive */
@media (max-width: 768px) {
    .carousel {
        height: 100vh;
    }
    .carousel h2 {
        font-size: 26px;
    }
    .carousel p {
        font-size: 14px;
        max-width: 360px;
    }
    .carousel .btn {
        padding: 12px 24px;
        font-size: 14px;
    }
    .carousel-arrow {
        width: 36px;
        height: 36px;
    }
    .carousel-arrow.prev { left: 12px; }
    .carousel-arrow.next { right: 12px; }
    .carousel-scroll-hint {
        bottom: 44px;
    }
}

/* ================================================================
   3. QUICK LINKS — 快捷入口
   ================================================================ */
.quick-links {
    padding: 40px 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
}

.quick-links-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.quick-link-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 24px;
    background: var(--color-bg-alt);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.quick-link-card:hover {
    background: var(--color-primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.quick-link-icon {
    width: 52px;
    height: 52px;
    background: var(--color-primary-light);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.quick-link-icon svg {
    width: 26px;
    height: 26px;
    color: var(--color-primary);
}

.quick-link-text h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 2px;
}

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

@media (max-width: 768px) {
    .quick-links-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    .quick-link-card {
        padding: 16px;
        gap: 10px;
    }
    .quick-link-icon {
        width: 40px;
        height: 40px;
    }
    .quick-link-icon svg {
        width: 20px;
        height: 20px;
    }
    .quick-link-text h4 {
        font-size: 14px;
    }
}

/* ================================================================
   4. SECTION COMMONS
   ================================================================ */
section {
    padding: 80px 0;
}

.section-label {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.section-title {
    font-size: 34px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 8px;
    letter-spacing: -0.3px;
}

.section-subtitle {
    font-size: 16px;
    color: var(--color-text-light);
    margin-bottom: 48px;
}

@media (max-width: 768px) {
    section {
        padding: 52px 0;
    }
    .section-title {
        font-size: 26px;
    }
    .section-subtitle {
        margin-bottom: 32px;
    }
}

/* ================================================================
   5. STATS BAR — 数据条
   ================================================================ */
.stats-bar {
    background: var(--color-primary);
    padding: 40px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    text-align: center;
}

.stat-item {
    color: var(--color-white);
}

.stat-number {
    font-size: 38px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 4px;
}

.stat-item p {
    font-size: 14px;
    opacity: 0.85;
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
    .stat-number {
        font-size: 28px;
    }
}

/* ================================================================
   6. SERVICES SECTION — 服务介绍
   ================================================================ */
.services-section {
    background: var(--color-white);
}

.services-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
}

.service-card {
    background: var(--color-bg-alt);
    border-radius: var(--radius-xl);
    padding: 40px 36px;
    border: 1px solid var(--color-border);
    transition: all var(--transition-normal);
}

.service-card:hover {
    background: var(--color-white);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
    border-color: var(--color-primary);
}

.service-card-icon {
    width: 60px;
    height: 60px;
    background: var(--color-primary-light);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.service-card-icon svg {
    width: 30px;
    height: 30px;
    color: var(--color-primary);
}

.service-card h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 10px;
}

.service-card > p {
    color: var(--color-text-light);
    margin-bottom: 24px;
    line-height: 1.8;
}

.service-features {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 24px;
}

.service-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
    color: var(--color-text-secondary);
}

.service-feature svg {
    width: 18px;
    height: 18px;
    color: var(--color-primary);
    flex-shrink: 0;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 15px;
    font-weight: 600;
    color: var(--color-primary);
    transition: gap var(--transition-fast);
}

.service-link:hover {
    gap: 10px;
}

@media (max-width: 768px) {
    .services-grid {
        grid-template-columns: 1fr;
    }
    .service-card {
        padding: 28px 22px;
    }
}

/* ================================================================
   7. ADVANTAGES SECTION
   ================================================================ */
.advantages-section {
    background: var(--color-bg-alt);
}

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

.advantage-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 32px;
    border: 1px solid var(--color-border);
    transition: all var(--transition-fast);
}

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

.advantage-card .icon-circle {
    width: 48px;
    height: 48px;
    background: var(--color-primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.advantage-card .icon-circle svg {
    width: 24px;
    height: 24px;
    color: var(--color-primary);
}

.advantage-card h4 {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 8px;
}

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

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

@media (max-width: 768px) {
    .advantages-grid {
        grid-template-columns: 1fr;
    }
}

/* ================================================================
   8. PROCESS SECTION
   ================================================================ */
.process-section {
    background: var(--color-white);
}

.process-inner {
    max-width: 900px;
    margin: 0 auto;
}

.process-steps {
    display: flex;
    gap: 0;
    position: relative;
}

.process-steps::before {
    content: '';
    position: absolute;
    top: 28px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--color-border);
    z-index: 0;
}

.process-step {
    flex: 1;
    text-align: center;
    position: relative;
    z-index: 1;
    padding: 0 12px;
}

.process-step-num {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--color-white);
    border: 2px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 20px;
    font-weight: 700;
    color: var(--color-text-light);
    transition: all var(--transition-fast);
    position: relative;
    z-index: 1;
}

.process-step:hover .process-step-num {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
    color: var(--color-primary);
    transform: scale(1.1);
}

.process-step h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 6px;
}

.process-step p {
    font-size: 13px;
    color: var(--color-text-light);
    line-height: 1.6;
}

@media (max-width: 768px) {
    .process-steps {
        flex-direction: column;
        gap: 24px;
        padding-left: 40px;
    }
    .process-steps::before {
        top: 0;
        bottom: 0;
        left: 26px;
        right: auto;
        width: 2px;
        height: auto;
    }
    .process-step {
        display: flex;
        align-items: flex-start;
        gap: 14px;
        text-align: left;
        padding: 0;
    }
    .process-step-num {
        margin: 0;
        flex-shrink: 0;
        width: 44px;
        height: 44px;
        font-size: 16px;
    }
}

/* ================================================================
   9. CTA SECTION — 行动号召
   ================================================================ */
.cta-section {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    padding: 60px 0;
    text-align: center;
    color: var(--color-white);
}

.cta-section h2 {
    font-size: 30px;
    font-weight: 700;
    margin-bottom: 12px;
}

.cta-section p {
    font-size: 16px;
    opacity: 0.9;
    margin-bottom: 28px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.cta-section .btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 36px;
    border-radius: var(--radius);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all var(--transition-fast);
    background: var(--color-white);
    color: var(--color-primary);
}

.cta-section .btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* ================================================================
   10. FOOTER
   ================================================================ */
.footer {
    background: #101827;
    color: #cbd5e1;
}

.footer-main {
    padding: 56px 0 40px;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
}

.footer-brand h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 12px;
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    opacity: 0.8;
    max-width: 300px;
}

.footer-col h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: 16px;
}

.footer-col a {
    display: block;
    padding: 6px 0;
    font-size: 14px;
    color: #94a3b8;
    transition: color var(--transition-fast);
}

.footer-col a:hover {
    color: var(--color-white);
}

.footer-bottom {
    border-top: 1px solid #1e293b;
    padding: 20px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: #64748b;
    flex-wrap: wrap;
    gap: 12px;
}

@media (max-width: 768px) {
    .footer-main {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
    .footer-brand {
        grid-column: 1 / -1;
    }
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

/* ================================================================
   11. PAGE BANNER — 内页顶部横幅
   ================================================================ */
.page-banner {
    padding: 120px 0 60px;
    background: linear-gradient(135deg, #e8f0fe 0%, #d4e4fc 30%, #f0f5ff 70%, #f8fafc 100%);
    text-align: center;
}

.page-banner h1 {
    font-size: 40px;
    font-weight: 800;
    color: var(--color-text);
    margin-bottom: 12px;
}

.page-banner p {
    font-size: 16px;
    color: var(--color-text-light);
    max-width: 500px;
    margin: 0 auto;
}

/* ================================================================
   12. ABOUT PAGE — 关于我们
   ================================================================ */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image {
    background: linear-gradient(135deg, #e8f0fe 0%, #d4e4fc 100%);
    border-radius: var(--radius-xl);
    height: 400px;
    overflow: hidden;
}

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

.about-text h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 20px;
}

.about-text p {
    color: var(--color-text-light);
    line-height: 1.9;
    margin-bottom: 16px;
}

/* Certifications */
.certs-section {
    background: var(--color-bg-alt);
}

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

.cert-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 28px;
    text-align: center;
    transition: all var(--transition-fast);
}

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

.cert-icon {
    width: 64px;
    height: 64px;
    background: var(--color-primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    overflow: hidden;
}

.cert-icon.cert-img {
    width: auto;
    height: auto;
    max-width: 280px;
    max-height: 200px;
    border-radius: var(--radius);
    background: none;
}

.cert-icon.cert-img img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

/* Team Photo */
.icon-circle.team-photo {
    width: 72px;
    height: 72px;
    padding: 0;
    background: none;
    overflow: hidden;
}

.icon-circle.team-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    display: block;
}

.icon-circle.team-photo img:hover {
    transform: scale(1.05);
}

.cert-icon svg {
    width: 30px;
    height: 30px;
    color: var(--color-primary);
}

.cert-card h4 {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 6px;
}

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

@media (max-width: 768px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .about-image {
        height: 240px;
    }
    .certs-grid {
        grid-template-columns: 1fr;
    }
}

/* ================================================================
   13. SERVICES PAGE — 服务项目
   ================================================================ */
.service-detail-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
    padding: 60px 0;
    border-bottom: 1px solid var(--color-border);
}

.service-detail-block:last-child {
    border-bottom: none;
}

.service-detail-block:nth-child(even) {
    direction: rtl;
}

.service-detail-block:nth-child(even) .service-detail-text {
    direction: ltr;
}

.service-detail-text h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 16px;
}

.service-detail-text > p {
    color: var(--color-text-light);
    line-height: 1.9;
    margin-bottom: 24px;
}

.service-detail-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.service-detail-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 15px;
    color: var(--color-text-secondary);
}

.service-detail-list li::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--color-primary);
    border-radius: 50%;
    flex-shrink: 0;
    margin-top: 9px;
}

.service-detail-image {
    background: linear-gradient(135deg, #e8f0fe 0%, #d4e4fc 100%);
    border-radius: var(--radius-xl);
    height: 320px;
    overflow: hidden;
}

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

@media (max-width: 768px) {
    .service-detail-block {
        grid-template-columns: 1fr;
        gap: 32px;
        padding: 40px 0;
    }
    .service-detail-block:nth-child(even) {
        direction: ltr;
    }
    .service-detail-image {
        height: 200px;
    }
}

/* ================================================================
   14. CONTACT PAGE — 联系我们
   ================================================================ */
.contact-page-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-map {
    height: 360px;
    background: linear-gradient(135deg, #e8f0fe 0%, #d4e4fc 100%);
    border-radius: var(--radius-xl);
    overflow: hidden;
    margin-bottom: 28px;
    position: relative;
}

.contact-map img,
.contact-map .BMap_mask,
.contact-map canvas {
    width: 100%;
    height: 100%;
    display: block;
}
}

.contact-info-block h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 20px;
}

.contact-info-list {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
}

.contact-info-icon {
    width: 44px;
    height: 44px;
    background: var(--color-primary-light);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-info-icon svg {
    width: 20px;
    height: 20px;
    color: var(--color-primary);
}

.contact-info-item h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-light);
    margin-bottom: 2px;
}

.contact-info-item span,
.contact-info-item a {
    font-size: 15px;
    color: var(--color-text);
}

.contact-form {
    background: var(--color-bg-alt);
    border-radius: var(--radius-xl);
    padding: 40px;
    border: 1px solid var(--color-border);
}

.contact-form h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 24px;
}

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

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: 6px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 15px;
    font-family: inherit;
    color: var(--color-text);
    background: var(--color-white);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.1);
}

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

.form-submit {
    width: 100%;
    padding: 14px;
    background: var(--color-primary);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.form-submit:hover {
    background: var(--color-primary-dark);
    box-shadow: var(--shadow-md);
}

@media (max-width: 768px) {
    .contact-page-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .contact-form {
        padding: 24px;
    }
}

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

.btn-primary {
    background: var(--color-primary);
    color: var(--color-white);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
    color: var(--color-white);
}

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

.btn-outline:hover {
    background: var(--color-primary-light);
    transform: translateY(-1px);
}

.btn-lg {
    padding: 16px 36px;
    font-size: 17px;
}

/* ================================================================
   16. SCROLL ANIMATION
   ================================================================ */
.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ================================================================
   17. BREADCRUMB
   ================================================================ */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--color-text-light);
    padding: 16px 0;
}

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

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

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

.breadcrumb .current {
    color: var(--color-primary);
    font-weight: 500;
}