/* ========== 基础重置与变量 ========== */
:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f4f8fd;
    --bg-card: #ffffff;
    --bg-glass: rgba(255, 255, 255, 0.92);
    --color-primary: #1a4a8c;
    --color-accent: #2B5FA5;
    --color-gold: #F5A623;
    --text-primary: #1a1a2e;
    --text-secondary: #4a5568;
    --text-muted: #8899aa;
    --border-color: rgba(43, 95, 165, 0.15);
    --gradient-hero: linear-gradient(160deg, #e8f2fb 0%, #ffffff 40%, #f0f5fd 100%);
    --gradient-accent: linear-gradient(135deg, #2B5FA5 0%, #1a4a8c 100%);
    --gradient-gold: linear-gradient(135deg, #F5A623 0%, #e8950a 100%);
    --shadow-sm: 0 2px 12px rgba(43, 95, 165, 0.06);
    --shadow-md: 0 8px 30px rgba(43, 95, 165, 0.1);
    --shadow-glow: 0 4px 24px rgba(43, 95, 165, 0.12);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    /* 安全区变量 */
    --safe-top: env(safe-area-inset-top, 0px);
    --safe-bottom: env(safe-area-inset-bottom, 0px);
    --safe-left: env(safe-area-inset-left, 0px);
    --safe-right: env(safe-area-inset-right, 0px);
}

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

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

body {
    font-family: var(--font-family);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    width: 100%;
}

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

ul {
    list-style: none;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 clamp(16px, 4vw, 32px);
}

/* ========== 导航栏 ========== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: clamp(10px, 2vw, 16px) 0;
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    padding: clamp(8px, 1.5vw, 12px) 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 clamp(16px, 4vw, 32px);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    flex-shrink: 0;
}

.logo-img {
    height: clamp(28px, 6vw, 36px);
    width: auto;
    display: block;
}

.logo-text {
    color: var(--color-accent);
    font-weight: 700;
    white-space: nowrap;
}

.nav-links {
    display: flex;
    gap: clamp(16px, 3vw, 32px);
}

.nav-links a {
    font-size: clamp(0.85rem, 1.8vw, 0.9rem);
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
    position: relative;
    padding: 8px 0;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--color-accent);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: var(--transition);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
    min-width: 44px;
    min-height: 44px;
    justify-content: center;
    align-items: center;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
    border-radius: 2px;
}

/* 移动端遮罩层 */
.nav-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
    z-index: 998;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.nav-overlay.active {
    display: block;
    opacity: 1;
}

/* ========== Hero 区域 ========== */
.hero {
    position: relative;
    min-height: 100vh;
    min-height: 100svh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: var(--gradient-hero);
    padding-top: 80px;
    padding-bottom: 40px;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(43, 95, 165, 0.06) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 0;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(245, 166, 35, 0.05) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    max-width: 900px;
    padding: 0 clamp(16px, 4vw, 32px);
    animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-logo {
    margin-bottom: clamp(16px, 3vw, 24px);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 4px;
}

.hero-logo img {
    height: clamp(300px, 60vw, 480px);
    width: auto;
    max-width: 92vw;
}

.logo-trademark {
    font-size: clamp(42px, 7.5vw, 66px);
    color: var(--color-accent);
    font-weight: 700;
    margin-top: clamp(21px, 3.75vw, 33px);
    line-height: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: clamp(6px, 1.5vw, 8px) clamp(14px, 3vw, 20px);
    background: rgba(43, 95, 165, 0.08);
    border: 1px solid rgba(43, 95, 165, 0.2);
    border-radius: 50px;
    font-size: clamp(0.75rem, 1.8vw, 0.85rem);
    color: var(--color-accent);
    font-weight: 500;
    margin-bottom: clamp(20px, 4vw, 32px);
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: #10b981;
    border-radius: 50%;
    animation: blink 2s infinite;
    flex-shrink: 0;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.hero-title {
    margin-bottom: clamp(16px, 3vw, 24px);
}

.title-line {
    display: block;
    font-size: clamp(1.5rem, 5vw, 3rem);
    font-weight: 900;
    letter-spacing: -0.02em;
    line-height: 1.2;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.title-gradient {
    display: block;
    font-size: clamp(1.2rem, 4vw, 2rem);
    font-weight: 700;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(0.9rem, 2.2vw, 1.1rem);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto clamp(24px, 5vw, 40px);
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: clamp(32px, 6vw, 60px);
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: clamp(12px, 2.5vw, 14px) clamp(24px, 5vw, 36px);
    border-radius: 8px;
    font-size: clamp(0.9rem, 2vw, 1rem);
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-family: inherit;
    min-height: 44px;
}

.btn-primary {
    background: var(--gradient-accent);
    color: white;
    box-shadow: 0 4px 20px rgba(43, 95, 165, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(43, 95, 165, 0.45);
}

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

.btn-outline:hover {
    background: var(--color-accent);
    color: white;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: clamp(24px, 6vw, 60px);
    flex-wrap: wrap;
}

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

.stat-number {
    display: block;
    font-size: clamp(1.8rem, 5vw, 2.5rem);
    font-weight: 900;
    color: var(--color-accent);
    line-height: 1;
}

.stat-label {
    font-size: clamp(0.75rem, 1.8vw, 0.85rem);
    color: var(--text-secondary);
    margin-top: 8px;
    display: block;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.8rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(10px); }
}

.scroll-mouse {
    width: 24px;
    height: 36px;
    border: 2px solid var(--text-muted);
    border-radius: 12px;
    position: relative;
}

.scroll-wheel {
    width: 4px;
    height: 8px;
    background: var(--text-muted);
    border-radius: 2px;
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    animation: scrollWheel 1.5s infinite;
}

@keyframes scrollWheel {
    0% { top: 6px; opacity: 1; }
    100% { top: 18px; opacity: 0; }
}

/* ========== 通用区块样式 ========== */
section {
    padding: clamp(50px, 8vw, 100px) 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: clamp(32px, 6vw, 60px);
}

.section-tag {
    display: inline-block;
    font-size: clamp(0.7rem, 1.6vw, 0.8rem);
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--color-accent);
    margin-bottom: 16px;
    position: relative;
    text-transform: uppercase;
}

.section-tag::before,
.section-tag::after {
    content: '';
    display: inline-block;
    width: 30px;
    height: 2px;
    background: rgba(43, 95, 165, 0.3);
    vertical-align: middle;
    margin: 0 12px;
}

.section-title {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 900;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.section-desc {
    font-size: clamp(0.9rem, 2.2vw, 1.1rem);
    color: var(--text-secondary);
}

/* ========== 关于我们 ========== */
.about {
    background: #ffffff;
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: clamp(16px, 3vw, 30px);
}

.about-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: clamp(24px, 4vw, 40px) clamp(20px, 3vw, 30px);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.about-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.about-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
    border-color: rgba(43, 95, 165, 0.3);
}

.about-card:hover::before {
    transform: scaleX(1);
}

.about-icon {
    width: 56px;
    height: 56px;
    background: rgba(43, 95, 165, 0.08);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    color: var(--color-accent);
    transition: var(--transition);
}

.about-icon svg {
    width: 28px;
    height: 28px;
}

.about-card:hover .about-icon {
    background: var(--gradient-accent);
    color: white;
    transform: scale(1.1);
}

.about-card h3 {
    font-size: clamp(1.05rem, 2.2vw, 1.25rem);
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.about-card p {
    font-size: clamp(0.85rem, 2vw, 0.95rem);
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ========== 资质荣誉 ========== */
.qualifications {
    background: var(--bg-secondary);
}

.qual-group {
    margin-bottom: clamp(32px, 5vw, 56px);
}

.qual-group:last-child {
    margin-bottom: 0;
}

.qual-group-title {
    font-size: clamp(1.1rem, 2.2vw, 1.35rem);
    font-weight: 700;
    color: var(--color-accent);
    text-align: center;
    margin-bottom: clamp(20px, 3vw, 32px);
    position: relative;
    padding-bottom: 12px;
}

.qual-group-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 48px;
    height: 3px;
    background: var(--gradient-accent);
    border-radius: 2px;
}

.qual-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: clamp(16px, 2.5vw, 24px);
}

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

.qual-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: clamp(24px, 3vw, 36px) clamp(16px, 2.5vw, 24px);
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.qual-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-accent);
    transform: scaleX(0);
    transition: var(--transition);
}

.qual-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
}

.qual-card:hover::after {
    transform: scaleX(1);
}

.qual-icon {
    width: 64px;
    height: 64px;
    background: var(--gradient-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    color: white;
    position: relative;
    z-index: 1;
    box-shadow: 0 4px 16px rgba(43, 95, 165, 0.25);
}

.qual-icon svg {
    width: 32px;
    height: 32px;
}

.qual-card h3 {
    font-size: clamp(0.95rem, 1.8vw, 1.1rem);
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
    position: relative;
    z-index: 1;
}

.qual-card p {
    font-size: clamp(0.78rem, 1.6vw, 0.85rem);
    color: var(--text-secondary);
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

/* ========== 业务领域 ========== */
.services {
    background: #ffffff;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: clamp(16px, 2.5vw, 24px);
}

.service-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
    border-color: rgba(43, 95, 165, 0.3);
}

.service-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-accent);
    opacity: 0;
    transition: var(--transition);
}

.service-card:hover .service-bg {
    opacity: 0.03;
}

.service-content {
    position: relative;
    z-index: 1;
    padding: clamp(24px, 4vw, 40px) clamp(20px, 3vw, 30px);
}

.service-icon {
    width: 56px;
    height: 56px;
    background: rgba(43, 95, 165, 0.08);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    color: var(--color-accent);
    transition: var(--transition);
}

.service-icon svg {
    width: 28px;
    height: 28px;
}

.service-card:hover .service-icon {
    background: var(--gradient-accent);
    color: white;
    transform: rotate(-5deg) scale(1.1);
}

.service-content h3 {
    font-size: clamp(1rem, 2.2vw, 1.2rem);
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.service-content > p {
    font-size: clamp(0.85rem, 1.8vw, 0.9rem);
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
}

.service-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.service-features li {
    padding: 6px 14px;
    background: rgba(43, 95, 165, 0.06);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    font-size: clamp(0.75rem, 1.6vw, 0.8rem);
    color: var(--color-accent);
    font-weight: 500;
    transition: var(--transition);
}

.service-card:hover .service-features li {
    background: rgba(43, 95, 165, 0.12);
    border-color: rgba(43, 95, 165, 0.3);
}

/* ========== 团队 ========== */
.team-module {
    margin-top: clamp(48px, 8vw, 80px);
    background: var(--bg-secondary);
    border-radius: 20px;
    padding: clamp(32px, 5vw, 56px) clamp(20px, 4vw, 40px);
}

.team-module .section-header {
    margin-bottom: clamp(24px, 4vw, 40px);
}

.team {
    background: var(--bg-secondary);
}

.team-text {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: clamp(32px, 5vw, 52px) clamp(28px, 4vw, 48px);
    box-shadow: var(--shadow-sm);
}

.team-text p {
    font-size: clamp(0.92rem, 2vw, 1.05rem);
    line-height: 2.2;
    color: var(--text-secondary);
    margin-bottom: 24px;
    text-indent: 2em;
    text-align: justify;
    letter-spacing: 0.02em;
}

.team-text p:last-child {
    margin-bottom: 0;
}

.team-text p::first-letter {
    font-size: 1.15em;
    font-weight: 600;
}

/* 团队区域响应式 */
@media (max-width: 768px) {
    .team-text {
        padding: 28px 24px;
        border-radius: 12px;
    }

    .team-text p {
        text-indent: 2em;
        line-height: 2;
        margin-bottom: 18px;
    }
}

@media (max-width: 480px) {
    .team-text {
        padding: 24px 20px;
    }

    .team-text p {
        text-indent: 2em;
        font-size: 0.88rem;
        line-height: 1.9;
    }
}

/* ========== 联系我们 ========== */
.contact {
    background: #ffffff;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1.3fr 0.7fr;
    gap: clamp(24px, 5vw, 60px);
    align-items: center;
}

.contact-info h3 {
    font-size: clamp(1.2rem, 2.5vw, 1.5rem);
    font-weight: 700;
    margin-bottom: clamp(20px, 4vw, 32px);
    color: var(--text-primary);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: clamp(12px, 2.5vw, 20px);
    margin-bottom: 16px;
    padding: clamp(14px, 2.5vw, 20px);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.contact-item:hover {
    border-color: rgba(43, 95, 165, 0.3);
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
}

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

.contact-icon svg {
    width: 24px;
    height: 24px;
}

.contact-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    display: block;
    margin-bottom: 4px;
    font-weight: 600;
}

.contact-value {
    font-size: clamp(0.9rem, 1.8vw, 1rem);
    color: var(--text-primary);
    font-weight: 500;
    word-break: break-word;
}

.contact-map {
    height: 100%;
    min-height: 300px;
}

.map-placeholder {
    width: 100%;
    height: 100%;
    min-height: 300px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    color: var(--text-secondary);
    position: relative;
    overflow: hidden;
}

.map-placeholder::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 30% 40%, rgba(43, 95, 165, 0.06) 0%, transparent 50%),
        radial-gradient(circle at 70% 60%, rgba(245, 166, 35, 0.04) 0%, transparent 50%);
}

.map-placeholder svg {
    width: 64px;
    height: 64px;
    color: var(--color-accent);
    opacity: 0.5;
    position: relative;
    z-index: 1;
}

.map-placeholder span {
    font-size: clamp(0.95rem, 2vw, 1.1rem);
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    z-index: 1;
}

/* ========== 项目案例 ========== */
.projects {
    background: var(--bg-secondary);
}

/* 项目概述 */
.projects-overview {
    margin: 0 0 clamp(28px, 4vw, 40px);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: clamp(20px, 3vw, 32px) clamp(18px, 3vw, 28px);
    box-shadow: var(--shadow-sm);
}

.overview-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: clamp(16px, 3vw, 32px);
    margin-bottom: clamp(20px, 3vw, 28px);
    padding-bottom: clamp(20px, 3vw, 28px);
    border-bottom: 1px solid var(--border-color);
}

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

.overview-number {
    display: block;
    font-size: clamp(1.6rem, 4vw, 2.4rem);
    font-weight: 900;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.overview-label {
    display: block;
    font-size: clamp(0.78rem, 1.6vw, 0.88rem);
    color: var(--text-secondary);
    margin-top: 8px;
}

.overview-text {
    font-size: clamp(0.88rem, 2vw, 1rem);
    color: var(--text-secondary);
    line-height: 1.8;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: clamp(16px, 2.5vw, 24px);
}

/* 项目卡片显隐：默认只显示4个精选，展开后显示全部 */
.projects-grid .project-card { display: none; }
.projects-grid .project-card[data-featured="true"] { display: block; }
.projects-grid.expanded .project-card { display: block; }

/* 展开/收起按钮 */
.projects-toggle {
    text-align: center;
    margin-top: clamp(24px, 4vw, 40px);
}

.projects-toggle .btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.toggle-arrow svg {
    width: 18px;
    height: 18px;
    transition: transform 0.3s ease;
}

.projects-grid.expanded ~ .projects-toggle .toggle-arrow svg {
    transform: rotate(180deg);
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: clamp(24px, 3vw, 36px) clamp(20px, 3vw, 28px);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
    border-color: rgba(43, 95, 165, 0.3);
}

.project-card:hover::before {
    transform: scaleX(1);
}

.project-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.project-number {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 900;
    color: rgba(43, 95, 165, 0.12);
    line-height: 1;
}

.category-tag {
    display: inline-block;
    padding: 5px 14px;
    border-radius: 50px;
    font-size: clamp(0.72rem, 1.4vw, 0.8rem);
    font-weight: 600;
    white-space: nowrap;
}

.tag-blue {
    background: rgba(43, 95, 165, 0.1);
    color: var(--color-accent);
}

.tag-gold {
    background: rgba(245, 166, 35, 0.12);
    color: var(--color-gold);
}

.tag-green {
    background: rgba(16, 185, 129, 0.1);
    color: #059669;
}

.tag-purple {
    background: rgba(139, 92, 246, 0.1);
    color: #7c3aed;
}

.project-name {
    font-size: clamp(0.95rem, 2vw, 1.1rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 14px;
    line-height: 1.5;
}

.project-desc {
    font-size: clamp(0.82rem, 1.8vw, 0.88rem);
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ========== 新闻动态 ========== */
.news {
    background: #ffffff;
}

/* 微信公众号引流 */
.wechat-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: clamp(20px, 4vw, 40px);
    padding: clamp(24px, 4vw, 40px) clamp(20px, 4vw, 40px);
    background: linear-gradient(135deg, rgba(43, 95, 165, 0.06) 0%, rgba(245, 166, 35, 0.04) 100%);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    margin-bottom: clamp(32px, 5vw, 48px);
    flex-wrap: wrap;
}

.wechat-info h3 {
    font-size: clamp(1.1rem, 2.5vw, 1.35rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.wechat-info p {
    font-size: clamp(0.85rem, 1.8vw, 0.95rem);
    color: var(--text-secondary);
    line-height: 1.6;
}

.wechat-qr {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.wechat-qr img {
    width: clamp(100px, 20vw, 140px);
    height: clamp(100px, 20vw, 140px);
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.1);
    object-fit: cover;
    background: white;
    padding: 4px;
}

.qr-caption {
    font-size: clamp(0.65rem, 1.4vw, 0.78rem);
    color: var(--text-muted);
    white-space: nowrap;
}

/* 新闻来源说明 */
.news-source-note {
    text-align: center;
    font-size: clamp(0.82rem, 1.6vw, 0.9rem);
    color: var(--text-muted);
    margin-bottom: clamp(20px, 3vw, 28px);
    padding: clamp(10px, 2vw, 14px) clamp(16px, 3vw, 20px);
    background: rgba(43, 95, 165, 0.04);
    border-radius: 10px;
    border: 1px dashed rgba(43, 95, 165, 0.15);
}

/* 新闻列表 */
.news-list {
    display: flex;
    flex-direction: column;
    gap: clamp(12px, 2vw, 16px);
}

.news-card {
    display: flex;
    align-items: center;
    gap: clamp(16px, 3vw, 28px);
    padding: clamp(20px, 3vw, 28px) clamp(20px, 3vw, 32px);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    text-decoration: none;
    color: inherit;
}

.news-card:hover {
    border-color: rgba(43, 95, 165, 0.3);
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
}

.news-date {
    flex-shrink: 0;
    text-align: center;
    min-width: clamp(60px, 12vw, 80px);
    padding: clamp(10px, 2vw, 14px) clamp(8px, 1.5vw, 12px);
    background: rgba(43, 95, 165, 0.06);
    border-radius: 10px;
    font-size: clamp(0.8rem, 1.6vw, 0.9rem);
    font-weight: 700;
    color: var(--color-accent);
    line-height: 1.3;
}

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

.news-title {
    font-size: clamp(0.95rem, 2vw, 1.1rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
    line-height: 1.4;
    transition: var(--transition);
}

.news-card:hover .news-title {
    color: var(--color-accent);
}

.news-summary {
    font-size: clamp(0.82rem, 1.8vw, 0.88rem);
    color: var(--text-secondary);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-arrow {
    flex-shrink: 0;
    font-size: clamp(1.5rem, 3vw, 2rem);
    color: var(--text-muted);
    transition: var(--transition);
    line-height: 1;
}

.news-card:hover .news-arrow {
    color: var(--color-accent);
    transform: translateX(4px);
}

/* 联系方式 - 微信公众号二维码 */
.contact-wechat {
    align-items: flex-start;
}

.contact-wechat-body {
    flex: 1;
    min-width: 0;
}

.contact-qr {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    margin-top: 14px;
}

.contact-qr img {
    width: clamp(110px, 22vw, 150px);
    height: clamp(110px, 22vw, 150px);
    border-radius: 10px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
    object-fit: cover;
    background: white;
    padding: 5px;
    border: 1px solid var(--border-color);
}

.contact-qr .qr-caption {
    font-size: clamp(0.72rem, 1.5vw, 0.82rem);
    color: var(--text-muted);
    white-space: nowrap;
}

/* ========== 页脚 ========== */
.footer {
    background: #e8f1fb;
    border-top: 1px solid rgba(43, 95, 165, 0.1);
    padding: clamp(32px, 5vw, 60px) 0 calc(24px + var(--safe-bottom));
    color: #4a5568;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    flex-wrap: wrap;
    gap: 24px;
}

.footer-logo {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    font-weight: 700;
    color: #1a1a2e;
}

.footer-logo-img {
    height: clamp(24px, 5vw, 28px);
    width: auto;
    display: inline-block;
    vertical-align: middle;
    margin-right: 8px;
}

.footer-brand p {
    font-size: clamp(0.85rem, 1.8vw, 0.9rem);
    opacity: 0.7;
    color: var(--text-secondary);
    margin-top: 8px;
}

.footer-links {
    display: flex;
    gap: clamp(16px, 3vw, 32px);
    flex-wrap: wrap;
}

.footer-links a {
    font-size: clamp(0.85rem, 1.8vw, 0.9rem);
    opacity: 0.8;
    color: var(--text-secondary);
    transition: var(--transition);
    padding: 4px 0;
}

.footer-links a:hover {
    opacity: 1;
    color: var(--color-gold);
}

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid rgba(43, 95, 165, 0.12);
}

.footer-bottom p {
    font-size: clamp(0.78rem, 1.6vw, 0.85rem);
    opacity: 0.7;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.footer-icp a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
    opacity: 0.8;
}

.footer-icp a:hover {
    color: var(--color-primary);
    opacity: 1;
}

/* ========== 响应式设计 - 大屏 ========== */
@media (min-width: 1441px) {
    .container {
        max-width: 1320px;
    }
    .nav-container {
        max-width: 1320px;
    }
}

/* ========== 响应式设计 - 平板横屏 (1024px) ========== */
@media (max-width: 1024px) {
    .qual-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .qual-grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .contact-grid {
        gap: 40px;
    }
}

/* ========== 响应式设计 - 平板竖屏 (768px) ========== */
@media (max-width: 768px) {
    body {
        background: white;
    }

    /* 项目概述移动端 */
    .overview-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    /* 移动端导航菜单 */
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 75%;
        max-width: 320px;
        height: 100vh;
        height: 100svh;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 28px;
        transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 999;
        box-shadow: -4px 0 30px rgba(0, 0, 0, 0.1);
        padding-top: var(--safe-top);
        padding-bottom: var(--safe-bottom);
    }

    .nav-links.active {
        right: 0;
    }

    .nav-links a {
        font-size: 1.1rem;
        padding: 12px 0;
    }

    .hamburger {
        display: flex;
        z-index: 1001;
    }

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

    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }

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

    /* Hero 区域 */
    .hero {
        min-height: 100svh;
        padding-top: 100px;
    }

    .hero-stats {
        gap: 32px;
    }

    /* 网格变单列 */
    .about-grid {
        grid-template-columns: 1fr;
    }

    .qual-grid,
    .qual-grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

    .wechat-banner {
        flex-direction: column;
        text-align: center;
    }

    .news-card {
        flex-direction: column;
        align-items: flex-start;
        gap: 14px;
    }

    .news-date {
        min-width: auto;
        align-self: flex-start;
    }

    .news-arrow {
        display: none;
    }

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

    .contact-map {
        min-height: 250px;
    }

    .map-placeholder {
        min-height: 250px;
    }

    /* 页脚 */
    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .footer-links {
        justify-content: center;
    }

    /* 滚动指示器隐藏 */
    .scroll-indicator {
        display: none;
    }
}

/* ========== 响应式设计 - 手机 (480px) ========== */
@media (max-width: 480px) {
    .hero {
        padding-top: 90px;
        padding-bottom: 30px;
    }

    .hero-logo img {
        height: 270px;
    }

    .logo-trademark {
        font-size: 42px;
        margin-top: 18px;
    }

    .hero-badge {
        font-size: 0.72rem;
        padding: 6px 14px;
    }

    .hero-subtitle br {
        display: none;
    }

    .hero-cta {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }

    .btn {
        width: 100%;
    }

    .hero-stats {
        gap: 20px;
    }

    .qual-grid,
    .qual-grid-4 {
        grid-template-columns: 1fr;
        max-width: 320px;
        margin: 0 auto;
    }

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

    .section-tag::before,
    .section-tag::after {
        width: 20px;
        margin: 0 8px;
    }

    .logo-text {
        font-size: 0.95rem;
    }

    .contact-item {
        padding: 14px;
        gap: 12px;
    }

    .contact-icon {
        width: 40px;
        height: 40px;
        min-width: 40px;
    }

    .contact-icon svg {
        width: 20px;
        height: 20px;
    }

    .footer-links {
        gap: 12px 20px;
        justify-content: center;
    }

    .footer-links a {
        font-size: 0.82rem;
    }
}

/* ========== 响应式设计 - 小屏手机 (375px) ========== */
@media (max-width: 375px) {
    .hero-logo img {
        height: 234px;
    }

    .logo-trademark {
        font-size: 36px;
        margin-top: 15px;
    }

    .title-line {
        font-size: 1.35rem;
    }

    .title-gradient {
        font-size: 1.1rem;
    }

    .hero-stats {
        gap: 16px;
    }

    .stat-number {
        font-size: 1.6rem;
    }

    .stat-label {
        font-size: 0.7rem;
    }

    .hero-cta {
        gap: 10px;
    }

    .btn {
        padding: 12px 20px;
        font-size: 0.88rem;
    }

    .section-tag::before,
    .section-tag::after {
        display: none;
    }

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

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

    .qual-icon svg {
        width: 26px;
        height: 26px;
    }
}

/* ========== 响应式设计 - 超小屏 (320px) ========== */
@media (max-width: 320px) {
    .logo-text {
        font-size: 0.85rem;
    }

    .logo-img {
        height: 26px;
    }

    .title-line {
        font-size: 1.2rem;
    }

    .title-gradient {
        font-size: 1rem;
    }

    .hero-subtitle {
        font-size: 0.85rem;
    }

    .hero-stats {
        gap: 12px;
    }

    .stat-number {
        font-size: 1.4rem;
    }

    .section-title {
        font-size: 1.3rem;
    }
}

/* ========== 横屏模式适配 ========== */
@media (max-width: 900px) and (orientation: landscape) and (max-height: 500px) {
    .hero {
        min-height: 100svh;
        padding-top: 80px;
        padding-bottom: 20px;
    }

    .hero-logo {
        margin-bottom: 12px;
    }

    .hero-logo img {
        height: 210px;
    }

    .hero-badge {
        margin-bottom: 16px;
        padding: 5px 14px;
    }

    .hero-subtitle {
        margin-bottom: 20px;
    }

    .hero-cta {
        margin-bottom: 24px;
    }

    .scroll-indicator {
        display: none;
    }

    .nav-links {
        padding-top: 60px;
    }
}

/* ========== 打印样式 ========== */
@media print {
    .navbar,
    .scroll-indicator,
    .hamburger {
        display: none !important;
    }

    .hero {
        min-height: auto;
        padding: 20px 0;
    }

    section {
        padding: 20px 0;
    }

    .about-card,
    .qual-card,
    .service-card {
        box-shadow: none;
        border: 1px solid #ccc;
        break-inside: avoid;
    }
}

/* ========== 暗色模式支持 ========== */
@media (prefers-color-scheme: dark) {
    :root {
        --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.15);
        --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.2);
    }
}

/* ========== 减少动画偏好 ========== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ========== 滚动动画 ========== */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========== 新闻详情弹窗 ========== */
.news-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.news-modal.active {
    display: flex;
}

.news-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.news-modal.active .news-modal-overlay {
    opacity: 1;
}

.news-modal-content {
    position: relative;
    width: 100%;
    max-width: 720px;
    max-height: 85vh;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    overflow: hidden;
    transform: translateY(30px) scale(0.96);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
}

.news-modal.active .news-modal-content {
    transform: translateY(0) scale(1);
}

.news-modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    border: none;
    background: rgba(0, 0, 0, 0.05);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    transition: background 0.2s ease, transform 0.2s ease;
    color: #4a5568;
}

.news-modal-close:hover {
    background: rgba(0, 0, 0, 0.1);
    transform: rotate(90deg);
}

.news-modal-close svg {
    width: 20px;
    height: 20px;
}

.news-modal-body {
    overflow-y: auto;
    padding: 40px 40px 48px;
    -webkit-overflow-scrolling: touch;
}

.news-modal-date {
    display: inline-block;
    font-size: 14px;
    color: #2B5FA5;
    background: rgba(43, 95, 165, 0.08);
    padding: 4px 14px;
    border-radius: 20px;
    margin-bottom: 16px;
    font-weight: 500;
}

.news-modal-title {
    font-size: clamp(20px, 3vw, 26px);
    font-weight: 700;
    color: #1a1a2e;
    line-height: 1.4;
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(43, 95, 165, 0.12);
}

.news-modal-text p {
    font-size: 16px;
    line-height: 1.85;
    color: #2d3748;
    margin-bottom: 16px;
    text-align: justify;
}

.news-modal-wechat {
    margin-top: 28px;
    padding: 16px 20px;
    background: rgba(43, 95, 165, 0.05);
    border-radius: 10px;
    border-left: 3px solid #2B5FA5;
    font-size: 14px;
    color: #4a5568;
    display: flex;
    align-items: center;
    gap: 8px;
}

.news-modal-wechat a {
    color: #2B5FA5;
    text-decoration: none;
    font-weight: 500;
}

.news-modal-wechat a:hover {
    text-decoration: underline;
}

/* 弹窗响应式 */
@media (max-width: 768px) {
    .news-modal {
        padding: 0;
    }

    .news-modal-content {
        max-height: 100vh;
        height: 100vh;
        border-radius: 0;
    }

    .news-modal-body {
        padding: 56px 20px 40px;
    }

    .news-modal-text p {
        font-size: 15px;
        line-height: 1.8;
    }
}

/* ========== 证书查看按钮 ========== */
.qual-cert-btn {
    display: inline-block;
    margin-top: 14px;
    padding: 6px 18px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-accent);
    background: rgba(43, 95, 165, 0.08);
    border: 1px solid rgba(43, 95, 165, 0.2);
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    user-select: none;
}

.qual-cert-btn:hover {
    background: var(--color-accent);
    color: white;
    border-color: var(--color-accent);
    transform: translateY(-2px);
}

.qual-cert-btn:focus {
    outline: 2px solid rgba(43, 95, 165, 0.4);
    outline-offset: 2px;
}

/* ========== 证书大图弹窗 ========== */
.cert-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 11000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.cert-modal.active {
    display: flex;
}

.cert-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.cert-modal.active .cert-modal-overlay {
    opacity: 1;
}

.cert-modal-content {
    position: relative;
    width: 100%;
    max-width: 900px;
    max-height: 90vh;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
    transform: translateY(30px) scale(0.96);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
}

.cert-modal.active .cert-modal-content {
    transform: translateY(0) scale(1);
}

.cert-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    background: #fafbfc;
}

.cert-modal-header h3 {
    font-size: clamp(1rem, 2.2vw, 1.15rem);
    font-weight: 700;
    color: var(--text-primary);
}

.cert-modal-close {
    width: 36px;
    height: 36px;
    border: none;
    background: rgba(0, 0, 0, 0.05);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease, transform 0.2s ease;
    color: #4a5568;
    flex-shrink: 0;
}

.cert-modal-close:hover {
    background: rgba(0, 0, 0, 0.1);
    transform: rotate(90deg);
}

.cert-modal-close svg {
    width: 20px;
    height: 20px;
}

.cert-modal-body {
    overflow-y: auto;
    padding: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f5f6f8;
    -webkit-overflow-scrolling: touch;
}

.cert-modal-body img {
    max-width: 100%;
    max-height: 70vh;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    object-fit: contain;
}

/* 证书弹窗响应式 */
@media (max-width: 768px) {
    .cert-modal {
        padding: 0;
    }

    .cert-modal-content {
        max-height: 100vh;
        height: 100vh;
        border-radius: 0;
    }

    .cert-modal-body {
        padding: 16px;
    }

    .cert-modal-body img {
        max-height: 60vh;
    }
}

/* ========== 新闻弹窗"阅读原文"优化 ========== */
.news-modal-wechat {
    margin-top: 28px;
    padding: 18px 22px;
    background: rgba(43, 95, 165, 0.06);
    border-radius: 12px;
    border: 1px solid rgba(43, 95, 165, 0.15);
    font-size: 14px;
    color: #4a5568;
    display: flex;
    align-items: center;
    gap: 10px;
    line-height: 1.6;
}

.news-modal-wechat a {
    color: #2B5FA5;
    text-decoration: none;
    font-weight: 600;
    padding: 6px 14px;
    background: rgba(43, 95, 165, 0.1);
    border-radius: 50px;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.news-modal-wechat a:hover {
    background: var(--color-accent);
    color: white;
    text-decoration: none;
}

.news-modal-wechat svg {
    flex-shrink: 0;
    color: #2B5FA5;
}