/* ===== 全局重置与基础 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    transition: background var(--transition), color var(--transition);
    overflow-x: hidden;
}

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

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

img, svg {
    max-width: 100%;
    height: auto;
    display: block;
}

ul {
    list-style: none;
}

/* ===== CSS 变量 ===== */
:root {
    --primary: #ff6b35;
    --primary-dark: #e55a2b;
    --primary-light: #ff8a5c;
    --secondary: #1a1a2e;
    --secondary-light: #2d2d44;
    --bg: #f8f9fa;
    --bg-card: #ffffff;
    --text: #222222;
    --text-light: #555555;
    --text-muted: #888888;
    --shadow: 0 8px 32px rgba(0,0,0,0.08);
    --shadow-hover: 0 16px 48px rgba(0,0,0,0.12);
    --radius: 16px;
    --radius-sm: 8px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --glass-bg: rgba(255,255,255,0.7);
    --glass-border: rgba(255,255,255,0.3);
    --gradient-hero: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    --gradient-accent: linear-gradient(135deg, #ff6b35, #ff8a5c);
    --max-width: 1200px;
}

.dark {
    --bg: #0d0d1a;
    --bg-card: #1a1a2e;
    --text: #e8e8e8;
    --text-light: #bbbbbb;
    --text-muted: #777777;
    --shadow: 0 8px 32px rgba(0,0,0,0.4);
    --shadow-hover: 0 16px 48px rgba(0,0,0,0.6);
    --glass-bg: rgba(26,26,46,0.7);
    --glass-border: rgba(255,255,255,0.1);
    --gradient-hero: linear-gradient(135deg, #0a0a1a 0%, #12122a 50%, #1a1a3e 100%);
}

/* ===== 通用布局 ===== */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
}

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

.section-title h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 16px;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--gradient-accent);
    margin: 12px auto 0;
    border-radius: 2px;
}

.section-title p {
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== 按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    background: var(--gradient-accent);
    color: white;
    box-shadow: 0 4px 16px rgba(255,107,53,0.3);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(255,107,53,0.4);
    color: white;
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
    box-shadow: none;
}

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

/* ===== 卡片 ===== */
.card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 32px;
    box-shadow: var(--shadow);
    transition: all var(--transition);
    border: 1px solid transparent;
}

.card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
    border-color: var(--glass-border);
}

/* ===== 毛玻璃效果 ===== */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
}

/* ===== 网格系统 ===== */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

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

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

/* ===== 工具类 ===== */
.text-center {
    text-align: center;
}

.mt-20 {
    margin-top: 20px;
}

.mb-20 {
    margin-bottom: 20px;
}

.relative {
    position: relative;
}

.hidden {
    display: none;
}

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

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

.scroll-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ===== Header & Nav ===== */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: all var(--transition);
}

header.scrolled {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    padding: 8px 0;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text);
}

.logo svg {
    width: 40px;
    height: 40px;
}

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

nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

nav a {
    color: var(--text);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding: 4px 0;
}

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

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text);
    transition: background var(--transition);
}

.theme-toggle:hover {
    background: rgba(255,107,53,0.1);
}

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

.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg);
    z-index: 999;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 24px;
}

.mobile-menu.open {
    display: flex;
}

.mobile-menu a {
    font-size: 1.5rem;
    color: var(--text);
}

.mobile-menu .close-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: var(--text);
}

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

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 20% 50%, rgba(255,107,53,0.15) 0%, transparent 50%),
                radial-gradient(circle at 80% 50%, rgba(255,138,92,0.1) 0%, transparent 50%);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    padding: 60px 20px;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 800;
    color: white;
    line-height: 1.2;
    margin-bottom: 24px;
}

.hero h1 span {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.25rem;
    color: rgba(255,255,255,0.8);
    margin-bottom: 40px;
    max-width: 600px;
}

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

.hero-slider {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 2;
}

.hero-slider .dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255,255,255,0.3);
    cursor: pointer;
    transition: all var(--transition);
}

.hero-slider .dot.active {
    background: var(--primary);
    width: 36px;
    border-radius: 6px;
}

/* ===== Breadcrumb ===== */
.breadcrumb {
    padding: 100px 0 20px;
    background: var(--bg);
}

.breadcrumb ul {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.breadcrumb ul li+li::before {
    content: '›';
    margin-right: 8px;
    color: var(--text-muted);
}

.breadcrumb ul li:last-child {
    color: var(--text);
}

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

.about-text h3 {
    font-size: 2rem;
    margin-bottom: 20px;
}

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

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 40px;
}

.stat-item {
    text-align: center;
    padding: 20px;
    background: var(--bg-card);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow);
}

.stat-item .number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-item p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ===== Brand Story ===== */
.brand-story {
    background: var(--bg-card);
}

.story-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.story-content p {
    color: var(--text-light);
    margin-bottom: 20px;
    font-size: 1.05rem;
}

.story-timeline {
    display: flex;
    justify-content: space-between;
    margin-top: 40px;
    position: relative;
    padding: 20px 0;
}

.story-timeline::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 10%;
    right: 10%;
    height: 2px;
    background: var(--gradient-accent);
    transform: translateY(-50%);
}

.timeline-item {
    text-align: center;
    position: relative;
    z-index: 1;
    background: var(--bg-card);
    padding: 12px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow);
    min-width: 100px;
}

.timeline-item .year {
    font-weight: 800;
    color: var(--primary);
    font-size: 1.2rem;
}

.timeline-item p {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ===== Culture ===== */
.culture-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.culture-item {
    text-align: center;
    padding: 32px 16px;
}

.culture-item svg {
    width: 48px;
    height: 48px;
    margin: 0 auto 16px;
    color: var(--primary);
}

.culture-item h3 {
    font-size: 1.2rem;
    margin-bottom: 8px;
}

.culture-item p {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* ===== Team ===== */
.team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.team-card {
    text-align: center;
    padding: 32px 16px;
}

.team-card .avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    margin: 0 auto 16px;
    background: var(--gradient-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: white;
    font-weight: 700;
}

.team-card h3 {
    font-size: 1.1rem;
}

.team-card .role {
    color: var(--primary);
    font-size: 0.9rem;
    margin: 4px 0 8px;
}

.team-card p {
    font-size: 0.85rem;
    color: var(--text-light);
}

/* ===== Products ===== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.product-card {
    padding: 32px;
    text-align: center;
}

.product-card .icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 16px;
    background: var(--gradient-accent);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-card h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
}

.product-card p {
    color: var(--text-light);
    font-size: 0.95rem;
}

.product-card .features {
    margin-top: 16px;
    text-align: left;
}

.product-card .features li {
    padding: 6px 0;
    color: var(--text-light);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.product-card .features li::before {
    content: '✓';
    color: var(--primary);
    font-weight: 700;
}

/* ===== Advantages ===== */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.advantage-item {
    padding: 32px;
    text-align: center;
}

.advantage-item svg {
    width: 40px;
    height: 40px;
    margin: 0 auto 16px;
    color: var(--primary);
}

.advantage-item h3 {
    font-size: 1.2rem;
    margin-bottom: 8px;
}

.advantage-item p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* ===== Support ===== */
.support-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.support-item {
    padding: 24px;
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.support-item svg {
    width: 36px;
    height: 36px;
    flex-shrink: 0;
    color: var(--primary);
}

.support-item h3 {
    font-size: 1.1rem;
    margin-bottom: 4px;
}

.support-item p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* ===== Solutions ===== */
.solutions-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.solution-card {
    padding: 32px;
    text-align: center;
}

.solution-card svg {
    width: 48px;
    height: 48px;
    margin: 0 auto 16px;
    color: var(--primary);
}

.solution-card h3 {
    font-size: 1.2rem;
    margin-bottom: 8px;
}

.solution-card p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* ===== Industries ===== */
.industries-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.industry-item {
    padding: 24px;
    text-align: center;
}

.industry-item svg {
    width: 36px;
    height: 36px;
    margin: 0 auto 12px;
    color: var(--primary);
}

.industry-item h3 {
    font-size: 1rem;
    margin-bottom: 4px;
}

.industry-item p {
    font-size: 0.85rem;
    color: var(--text-light);
}

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

.case-card {
    padding: 0;
    overflow: hidden;
}

.case-card .case-img {
    height: 200px;
    background: var(--gradient-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    font-weight: 600;
}

.case-card .case-body {
    padding: 24px;
}

.case-card .case-body h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.case-card .case-body p {
    color: var(--text-light);
    font-size: 0.9rem;
}

.case-card .case-body .tag {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(255,107,53,0.1);
    color: var(--primary);
    border-radius: 20px;
    font-size: 0.8rem;
    margin-top: 8px;
}

/* ===== Partners ===== */
.partners-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 24px;
    align-items: center;
}

.partner-item {
    padding: 20px;
    text-align: center;
    background: var(--bg-card);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow);
    transition: all var(--transition);
}

.partner-item:hover {
    transform: scale(1.05);
}

.partner-item svg {
    width: 60px;
    height: 60px;
    margin: 0 auto;
    color: var(--text-muted);
}

.partner-item p {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 8px;
}

/* ===== Testimonials ===== */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.testimonial-card {
    padding: 32px;
    position: relative;
}

.testimonial-card::before {
    content: '"';
    font-size: 4rem;
    position: absolute;
    top: 8px;
    left: 20px;
    color: var(--primary);
    opacity: 0.2;
    font-family: Georgia, serif;
}

.testimonial-card p {
    color: var(--text-light);
    font-style: italic;
    margin-bottom: 16px;
}

.testimonial-card .author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.testimonial-card .author .avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gradient-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
}

.testimonial-card .author .info h4 {
    font-size: 0.95rem;
}

.testimonial-card .author .info span {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ===== News ===== */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.news-card {
    padding: 0;
    overflow: hidden;
}

.news-card .news-img {
    height: 180px;
    background: var(--secondary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
}

.news-card .news-body {
    padding: 24px;
}

.news-card .news-body .date {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.news-card .news-body h3 {
    font-size: 1.1rem;
    margin: 8px 0;
}

.news-card .news-body p {
    color: var(--text-light);
    font-size: 0.9rem;
}

.news-card .news-body .read-more {
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    margin-top: 8px;
}

/* ===== FAQ ===== */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--glass-border);
    padding: 16px 0;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-weight: 600;
    font-size: 1.05rem;
    padding: 8px 0;
}

.faq-question .icon {
    transition: transform var(--transition);
}

.faq-item.active .faq-question .icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
    color: var(--text-light);
}

.faq-item.active .faq-answer {
    max-height: 300px;
    padding: 12px 0 8px;
}

/* ===== HowTo ===== */
.howto-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.howto-step {
    text-align: center;
    padding: 32px 16px;
    position: relative;
}

.howto-step .step-num {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--gradient-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 800;
    font-size: 1.2rem;
    margin: 0 auto 16px;
}

.howto-step h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.howto-step p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* ===== Contact ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

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

.contact-info .item svg {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    color: var(--primary);
}

.contact-info .item h4 {
    font-size: 1rem;
}

.contact-info .item p {
    color: var(--text-light);
    font-size: 0.9rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-form input,
.contact-form textarea {
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--glass-border);
    background: var(--bg-card);
    color: var(--text);
    font-size: 1rem;
    transition: border var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary);
}

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

/* ===== Footer ===== */
footer {
    background: var(--secondary);
    color: rgba(255,255,255,0.8);
    padding: 60px 0 20px;
}

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

.footer-col h3 {
    color: white;
    font-size: 1.1rem;
    margin-bottom: 16px;
}

.footer-col p,
.footer-col a {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.6);
}

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

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

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    margin-top: 40px;
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.4);
}

.footer-bottom a {
    color: rgba(255,255,255,0.4);
}

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

/* ===== Back to top ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--gradient-accent);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border: none;
    box-shadow: 0 4px 16px rgba(255,107,53,0.3);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
    z-index: 100;
}

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

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

/* ===== Search Modal ===== */
.search-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(8px);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
}

.search-modal.open {
    display: flex;
}

.search-modal .search-box {
    background: var(--bg-card);
    padding: 32px;
    border-radius: var(--radius);
    width: 90%;
    max-width: 500px;
}

.search-modal .search-box input {
    width: 100%;
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--glass-border);
    background: var(--bg);
    color: var(--text);
    font-size: 1.1rem;
}

.search-modal .search-box input:focus {
    outline: none;
    border-color: var(--primary);
}

.search-modal .search-box .results {
    margin-top: 16px;
    max-height: 300px;
    overflow-y: auto;
}

.search-modal .search-box .results .item {
    padding: 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--transition);
}

.search-modal .search-box .results .item:hover {
    background: var(--glass-bg);
}

.search-modal .search-box .results .item h4 {
    font-size: 0.95rem;
}

.search-modal .search-box .results .item p {
    font-size: 0.85rem;
    color: var(--text-light);
}

/* ===== 响应式布局 ===== */
@media (max-width: 1024px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .culture-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .industries-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .howto-steps {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
    .hero h1 {
        font-size: 2.5rem;
    }
    .section-title h2 {
        font-size: 2rem;
    }
    nav {
        display: none;
    }
    .menu-toggle {
        display: flex;
    }
    .about-grid {
        grid-template-columns: 1fr;
    }
    .about-stats {
        grid-template-columns: repeat(3, 1fr);
    }
    .team-grid {
        grid-template-columns: 1fr;
    }
    .culture-grid {
        grid-template-columns: 1fr;
    }
    .industries-grid {
        grid-template-columns: 1fr;
    }
    .howto-steps {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .contact-grid {
        grid-template-columns: 1fr;
    }
    .support-grid {
        grid-template-columns: 1fr;
    }
    .partners-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .story-timeline {
        flex-direction: column;
        gap: 16px;
        align-items: center;
    }
    .story-timeline::before {
        display: none;
    }
    .hero-btns {
        flex-direction: column;
        align-items: flex-start;
    }
    .hero-slider {
        bottom: 20px;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }
    .about-stats {
        grid-template-columns: 1fr;
    }
    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}