:root {
    --primary: #1a56db;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --orange: #f97316;
    --orange-light: #fb923c;
    --dark: #0f172a;
    --dark-2: #1e293b;
    --text: #334155;
    --text-light: #64748b;
    --bg: #ffffff;
    --bg-soft: #f8fafc;
    --border: #e2e8f0;
    --radius: 16px;
    --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
    --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 20px 50px rgba(15, 23, 42, 0.12);
    --gradient: linear-gradient(135deg, var(--primary) 0%, var(--orange) 100%);
    --gradient-text: linear-gradient(120deg, var(--primary-light) 0%, var(--primary) 40%, var(--orange) 100%);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', -apple-system, sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.7;
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== 导航栏 ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.92);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: background 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    border-bottom: 1px solid var(--border);
}

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

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

.logo-mark {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--gradient);
    color: #fff;
    font-size: 24px;
    font-weight: 900;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(26, 86, 219, 0.35);
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-name {
    font-size: 18px;
    font-weight: 900;
    color: var(--dark);
}

.logo-sub {
    font-size: 10px;
    letter-spacing: 2px;
    color: var(--text-light);
    font-weight: 500;
}

.nav-links {
    display: flex;
    gap: 34px;
}

.nav-links a {
    font-size: 15px;
    font-weight: 500;
    color: var(--text);
    position: relative;
    padding: 6px 0;
    transition: color 0.3s;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient);
    border-radius: 2px;
    transition: width 0.3s;
}

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

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

.nav-admin {
    color: var(--primary) !important;
    border: 1.5px solid var(--primary) !important;
    border-radius: 100px;
    padding: 5px 16px !important;
    margin-left: 4px;
}

.nav-admin::after {
    display: none;
}

.nav-admin:hover {
    background: var(--primary) !important;
    color: #fff !important;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
}

.nav-toggle span {
    width: 26px;
    height: 2px;
    background: var(--dark);
    border-radius: 2px;
    transition: all 0.3s;
}

/* ===== Hero ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    overflow: hidden;
    background: linear-gradient(160deg, #0f172a 0%, #1e293b 60%, #312e81 100%);
    color: #fff;
}

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
}

.blob-1 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, #1a56db, transparent 70%);
    top: -100px;
    right: -100px;
}

.blob-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, #f97316, transparent 70%);
    bottom: -80px;
    left: 10%;
}

.grid-overlay {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 820px;
}

.hero-badge {
    display: inline-block;
    padding: 8px 18px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 100px;
    font-size: 14px;
    color: #fff;
    margin-bottom: 28px;
    backdrop-filter: blur(4px);
    animation: fadeUp 0.8s ease both;
}

.hero-title {
    font-size: clamp(42px, 7vw, 72px);
    font-weight: 900;
    line-height: 1.15;
    margin-bottom: 24px;
    animation: fadeUp 0.8s 0.1s ease both;
}

.gradient-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-desc {
    font-size: clamp(16px, 2vw, 19px);
    color: rgba(255, 255, 255, 0.85);
    max-width: 640px;
    margin-bottom: 36px;
    animation: fadeUp 0.8s 0.2s ease both;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 56px;
    animation: fadeUp 0.8s 0.3s ease both;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 100px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
    font-family: inherit;
}

.btn-primary {
    background: var(--gradient);
    color: #fff;
    box-shadow: 0 8px 24px rgba(249, 115, 22, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(249, 115, 22, 0.4);
}

.btn-ghost {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(4px);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.2);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 1.5px solid var(--primary);
}

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

.btn-block {
    width: 100%;
}

.hero-stats {
    display: flex;
    gap: 40px;
    flex-wrap: wrap;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    padding-top: 32px;
    animation: fadeUp 0.8s 0.4s ease both;
}

.stat strong {
    display: block;
    font-size: 36px;
    font-weight: 900;
    color: #fff;
}

.stat strong small {
    font-size: 20px;
    color: var(--orange-light);
}

.stat span {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===== Section 通用 ===== */
.section {
    padding: 100px 0;
}

.section-head {
    text-align: center;
    margin-bottom: 60px;
}

.section-head.left {
    text-align: left;
    margin-bottom: 40px;
}

.section-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 3px;
    color: var(--primary);
    background: rgba(26, 86, 219, 0.08);
    padding: 6px 16px;
    border-radius: 100px;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(32px, 4vw, 44px);
    font-weight: 900;
    color: var(--dark);
    margin-bottom: 16px;
}

.section-sub {
    font-size: 17px;
    color: var(--text-light);
}

/* ===== 关于我们 ===== */
.about-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text > p {
    font-size: 16px;
    margin-bottom: 18px;
    color: var(--text);
}

.about-text strong {
    color: var(--dark);
}

.about-text em {
    font-style: normal;
    color: var(--primary);
    font-weight: 600;
}

.about-points {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 32px;
}

.point {
    display: flex;
    gap: 14px;
    padding: 20px;
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all 0.3s;
}

.point:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}

.point-icon {
    font-size: 28px;
    flex-shrink: 0;
}

.point h4 {
    font-size: 16px;
    color: var(--dark);
    margin-bottom: 4px;
}

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

.about-visual {
    position: relative;
}

.visual-card {
    position: relative;
    border-radius: 24px;
    padding: 60px 40px;
    background: linear-gradient(160deg, #1e3a8a 0%, #1e293b 100%);
    color: #fff;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    min-height: 380px;
    display: flex;
    align-items: flex-end;
}

.visual-glow {
    position: absolute;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(249, 115, 22, 0.4), transparent 70%);
    top: -60px;
    right: -60px;
    border-radius: 50%;
    filter: blur(40px);
}

.visual-content {
    position: relative;
    z-index: 2;
}

.visual-icon {
    font-size: 60px;
    display: block;
    margin-bottom: 24px;
}

.visual-content h3 {
    font-size: 28px;
    line-height: 1.4;
    margin-bottom: 16px;
}

.visual-content p {
    font-size: 12px;
    letter-spacing: 2px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 24px;
}

.visual-line {
    width: 60px;
    height: 3px;
    background: var(--gradient);
    border-radius: 3px;
}

/* ===== 产品与服务 ===== */
.products {
    background: var(--bg-soft);
}

.products-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
    margin-bottom: 48px;
}

.product-card-full {
    grid-column: 1 / -1;
}

.product-tagline {
    color: var(--text-light);
    margin-bottom: 20px;
    font-size: 14px;
}

.product-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 20px;
    padding: 12px 24px;
    color: #fff;
    background: linear-gradient(135deg, var(--orange), #f97316);
    font-weight: 600;
    font-size: 15px;
    text-decoration: none;
    border-radius: 100px;
    box-shadow: 0 4px 12px rgba(249, 115, 22, 0.25);
    transition: transform 0.2s, box-shadow 0.2s;
}

.product-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(249, 115, 22, 0.35);
    color: #fff;
}

.product-link-sm {
    padding: 9px 18px;
    font-size: 13px;
    margin-top: 16px;
}

.product-card {
    background: #fff;
    border-radius: 20px;
    padding: 40px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

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

.product-top {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.product-card .product-title {
    font-size: 22px;
    color: var(--dark);
    margin: 0;
    line-height: 1.3;
}

.product-top .product-badge {
    margin-left: auto;
    flex-shrink: 0;
}

.product-icon {
    width: 84px;
    height: 84px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    border-radius: 20px;
    overflow: hidden;
    padding: 6px;
}

.product-icon-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 14px;
    display: block;
}

.product-badge {
    font-size: 13px;
    font-weight: 700;
    color: var(--orange);
    background: rgba(249, 115, 22, 0.12);
    padding: 6px 14px;
    border-radius: 100px;
}

.badge-blue {
    color: var(--primary);
    background: rgba(26, 86, 219, 0.1);
}

.product-card h3 {
    font-size: 24px;
    color: var(--dark);
    margin-bottom: 14px;
}

.product-card > p {
    color: var(--text-light);
    font-size: 15px;
    margin-bottom: 24px;
}

.product-list {
    margin-top: auto;
}

.product-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 15px;
    color: var(--text);
    padding: 9px 0;
    border-bottom: 1px dashed var(--border);
}

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

.product-list li::before {
    content: '';
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--gradient);
    flex-shrink: 0;
    margin-top: 9px;
}

.product-list strong {
    color: var(--dark);
}

.sass-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 24px;
}

.sass-item {
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 14px 10px;
    text-align: center;
    transition: all 0.3s;
}

.sass-item:hover {
    border-color: var(--primary);
    background: #fff;
    transform: translateY(-3px);
    box-shadow: var(--shadow-sm);
}

.sass-tag {
    display: block;
    font-weight: 900;
    font-size: 18px;
    color: var(--primary);
    margin-bottom: 4px;
}

.sass-item span:last-child {
    font-size: 12px;
    color: var(--text-light);
}

.solution-strip {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    background: linear-gradient(160deg, var(--dark) 0%, #1e293b 100%);
    border-radius: 20px;
    padding: 36px 28px;
    color: #fff;
}

.solution-item {
    text-align: center;
    padding: 12px;
}

.solution-item span {
    font-size: 32px;
    display: block;
    margin-bottom: 12px;
}

.solution-item h4 {
    font-size: 17px;
    margin-bottom: 6px;
}

.solution-item p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
}

/* ===== 企业文化 ===== */
.culture-values {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

.value-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 32px 24px;
    text-align: center;
    transition: all 0.3s;
    box-shadow: var(--shadow-sm);
}

.value-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
    background: linear-gradient(160deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
}

.value-icon {
    font-size: 42px;
    display: block;
    margin-bottom: 16px;
}

.value-card h3 {
    font-size: 20px;
    margin-bottom: 12px;
    color: var(--dark);
}

.value-card:hover h3 {
    color: #fff;
}

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

.value-card:hover p {
    color: rgba(255, 255, 255, 0.85);
}

.culture-quote {
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 48px;
    text-align: center;
    position: relative;
}

.quote-mark {
    font-size: 64px;
    font-family: Georgia, serif;
    color: var(--primary);
    line-height: 0;
    display: block;
    margin-bottom: 12px;
    opacity: 0.4;
}

.culture-quote p {
    font-size: clamp(18px, 2.5vw, 24px);
    font-weight: 500;
    color: var(--dark);
    max-width: 760px;
    margin: 0 auto 24px;
}

.quote-author {
    font-size: 15px;
    color: var(--text-light);
}

/* ===== 公司资讯 ===== */
.news {
    background: var(--bg-soft);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    margin-bottom: 40px;
}

.news-card {
    background: #fff;
    border-radius: 18px;
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
    cursor: pointer;
}

.news-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.news-cover {
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 56px;
    background: linear-gradient(135deg, rgba(26, 86, 219, 0.08), rgba(249, 115, 22, 0.1));
    position: relative;
}

.news-cat {
    position: absolute;
    top: 16px;
    left: 16px;
    font-size: 12px;
    font-weight: 600;
    color: #fff;
    background: var(--primary);
    padding: 4px 12px;
    border-radius: 100px;
}

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

.news-date {
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.news-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 10px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-desc {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-more-link {
    margin-top: auto;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
}

.news-more {
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.admin-link {
    font-size: 14px;
    color: var(--text-light);
    transition: color 0.3s;
}

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

/* ===== 联系我们 ===== */
.contact-card {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    background: #fff;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
}

.contact-info {
    padding: 48px;
    background: linear-gradient(160deg, #0f172a 0%, #1e293b 100%);
    color: #fff;
}

.contact-info .section-tag {
    color: var(--orange-light);
    background: rgba(249, 115, 22, 0.15);
}

.contact-info .section-title {
    color: #fff;
}

.contact-info .section-sub {
    color: rgba(255, 255, 255, 0.7);
}

.contact-list {
    margin-top: 20px;
    display: grid;
    gap: 20px;
}

.contact-list li {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.c-icon {
    width: 44px;
    height: 44px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
}

.contact-list strong {
    font-size: 15px;
    display: block;
    margin-bottom: 2px;
}

.contact-list p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.75);
}

.contact-form {
    padding: 48px;
}

.contact-form h3 {
    font-size: 24px;
    color: var(--dark);
    margin-bottom: 8px;
}

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

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1.5px solid var(--border);
    border-radius: 12px;
    font-size: 15px;
    font-family: inherit;
    color: var(--text);
    background: var(--bg-soft);
    transition: all 0.3s;
    outline: none;
}

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

.form-group textarea {
    resize: vertical;
}

/* ===== 页脚 ===== */
.footer {
    background: var(--dark);
    color: rgba(255, 255, 255, 0.7);
    padding-top: 64px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 48px;
}

.footer-brand .logo-name {
    color: #fff;
}

.footer-brand .logo-sub {
    color: rgba(255, 255, 255, 0.5);
}

.footer-brand p {
    margin-top: 20px;
    font-size: 14px;
    line-height: 1.8;
}

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

.footer-col a {
    display: block;
    font-size: 14px;
    margin-bottom: 12px;
    transition: color 0.3s, transform 0.3s;
}

.footer-col a:hover {
    color: var(--orange-light);
    transform: translateX(4px);
}

.footer-col p {
    font-size: 14px;
    margin-bottom: 12px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 20px 0;
}

.footer-bottom .container {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    flex-wrap: wrap;
    gap: 8px;
}

/* ===== 回到顶部 ===== */
.back-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    border: none;
    background: var(--gradient);
    color: #fff;
    font-size: 20px;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s;
    z-index: 999;
}

.back-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-top:hover {
    transform: translateY(-4px);
}

/* ===== 弹窗 ===== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-overlay.show {
    display: flex;
}

.modal {
    background: #fff;
    border-radius: 20px;
    width: 100%;
    max-width: 720px;
    max-height: 85vh;
    overflow-y: auto;
    position: relative;
    box-shadow: var(--shadow-lg);
    animation: modalIn 0.4s ease;
}

@keyframes modalIn {
    from { opacity: 0; transform: translateY(40px) scale(0.96); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-close {
    position: sticky;
    top: 16px;
    float: right;
    margin: 16px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    background: var(--bg-soft);
    color: var(--dark);
    font-size: 18px;
    cursor: pointer;
    transition: all 0.3s;
    z-index: 10;
}

.modal-close:hover {
    background: var(--dark);
    color: #fff;
}

.modal-body {
    padding: 16px 40px 48px;
}

.modal-body .modal-cover {
    font-size: 80px;
    text-align: center;
    padding: 40px 0 20px;
}

.modal-body .modal-cat {
    display: inline-block;
    font-size: 13px;
    color: var(--primary);
    background: rgba(26, 86, 219, 0.08);
    padding: 4px 14px;
    border-radius: 100px;
    margin-bottom: 16px;
}

.modal-body h2 {
    font-size: 28px;
    color: var(--dark);
    margin-bottom: 12px;
    line-height: 1.4;
}

.modal-body .modal-date {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
}

.modal-body .modal-content {
    font-size: 16px;
    color: var(--text);
}

.modal-body .modal-content p {
    margin-bottom: 16px;
}

.modal-body .modal-content h3 {
    font-size: 20px;
    color: var(--dark);
    margin: 24px 0 12px;
}

/* ===== 动画 ===== */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .about-grid,
    .products-grid {
        grid-template-columns: 1fr;
    }

    .culture-values {
        grid-template-columns: 1fr 1fr;
    }

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

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

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 72px;
        right: -100%;
        width: 70%;
        max-width: 300px;
        height: calc(100vh - 72px);
        background: #fff;
        flex-direction: column;
        padding: 32px 24px;
        gap: 24px;
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.1);
        transition: right 0.4s ease;
        z-index: 999;
    }

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

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.open span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .nav-toggle.open span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.open span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .hero {
        padding: 100px 0 60px;
    }

    .hero-stats {
        gap: 24px;
    }

    .stat strong {
        font-size: 28px;
    }

    .about-points,
    .sass-cards,
    .solution-strip {
        grid-template-columns: 1fr 1fr;
    }

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

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

    .section {
        padding: 70px 0;
    }

    .product-card {
        padding: 28px 24px;
    }

    .contact-form,
    .contact-info {
        padding: 32px 24px;
    }
}

@media (max-width: 480px) {
    .about-points,
    .sass-cards,
    .solution-strip,
    .footer-grid {
        grid-template-columns: 1fr;
    }

    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .solution-strip {
        padding: 24px 16px;
    }
}