/* 基础与主题重置 */
:root {
    --bg-base: #0b0e14;
    --bg-card: rgba(18, 24, 38, 0.7);
    --border-color: rgba(56, 189, 248, 0.15);
    --border-glow: rgba(0, 240, 255, 0.4);
    --neon-blue: #00f0ff;
    --neon-purple: #7928ca;
    --neon-emerald: #10b981;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --font-sans: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-heading: 'Orbitron', 'Noto Sans SC', sans-serif;
}

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

body {
    background-color: var(--bg-base);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: radial-gradient(circle at 15% 20%, rgba(0, 240, 255, 0.05) 0%, transparent 40%),
                radial-gradient(circle at 85% 70%, rgba(121, 40, 202, 0.05) 0%, transparent 40%);
    pointer-events: none;
    z-index: -1;
}

/* 导航栏 */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
    background: rgba(11, 14, 20, 0.85);
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand-logo {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
}

.logo-accent {
    font-family: var(--font-heading);
    font-weight: 900;
    font-size: 1.5rem;
    letter-spacing: 2px;
    background: linear-gradient(135deg, #00f0ff 0%, #7928ca 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-sub {
    font-size: 1.1rem;
    font-weight: 700;
    color: #e2e8f0;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.2s ease;
}

.nav-links a:hover {
    color: var(--neon-blue);
}

.btn-tel {
    display: inline-block;
    padding: 0.5rem 1.2rem;
    border-radius: 9999px;
    background: rgba(0, 240, 255, 0.1);
    color: var(--neon-blue);
    text-decoration: none;
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 700;
    border: 1px solid var(--border-glow);
    transition: all 0.3s ease;
}

.btn-tel:hover {
    background: var(--neon-blue);
    color: #0b0e14;
    box-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
}

/* 视觉英雄区 */
.hero-section {
    position: relative;
    padding: 6rem 1.5rem 5rem;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
    background: linear-gradient(180deg, rgba(17, 24, 39, 0) 0%, rgba(15, 23, 42, 0.6) 100%);
}

.hero-content {
    max-width: 960px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-block;
    padding: 0.35rem 1rem;
    border-radius: 9999px;
    font-size: 0.8rem;
    font-weight: 700;
    font-family: var(--font-heading);
    color: var(--neon-blue);
    background: rgba(0, 240, 255, 0.08);
    border: 1px solid rgba(0, 240, 255, 0.2);
    letter-spacing: 1px;
    margin-bottom: 1.5rem;
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    letter-spacing: 0.5px;
}

.text-gradient {
    background: linear-gradient(135deg, #00f0ff 0%, #38bdf8 40%, #c084fc 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-desc {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 720px;
    margin: 0 auto 3.5rem;
    line-height: 1.8;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.25rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    border-radius: 12px;
    backdrop-filter: blur(8px);
    transition: transform 0.25s ease, border-color 0.25s ease;
}

.stat-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-glow);
}

.stat-num {
    display: block;
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--neon-blue);
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* 核心硬件区 */
.hardware-section {
    padding: 5rem 1.5rem;
}

.section-container {
    max-width: 1240px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 3.5rem;
}

.sub-title {
    display: block;
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--neon-blue);
    letter-spacing: 2px;
    margin-bottom: 0.5rem;
}

.section-header h2 {
    font-size: 2.2rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 1rem;
}

.accent-line {
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--neon-blue), var(--neon-purple));
    margin: 0 auto;
    border-radius: 2px;
}

.grid-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.75rem;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 2.2rem 1.8rem;
    position: relative;
    backdrop-filter: blur(10px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.card:hover {
    border-color: var(--border-glow);
    box-shadow: 0 10px 30px rgba(0, 240, 255, 0.08);
    transform: translateY(-5px);
}

.card-tag {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    font-family: var(--font-heading);
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--neon-blue);
    background: rgba(0, 240, 255, 0.08);
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    letter-spacing: 0.5px;
}

.card-icon {
    font-size: 2.2rem;
    margin-bottom: 1rem;
}

.card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.85rem;
    color: #fff;
}

.card-p {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.75;
}

/* 休闲配套区 */
.leisure-section {
    padding: 4rem 1.5rem;
}

.leisure-box {
    background: linear-gradient(135deg, rgba(24, 30, 48, 0.7) 0%, rgba(15, 23, 42, 0.8) 100%);
    border: 1px solid var(--border-color);
    border-radius: 18px;
    padding: 3.5rem 3rem;
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 3rem;
    align-items: center;
}

.leisure-text h2 {
    font-size: 2rem;
    font-weight: 800;
    margin: 0.5rem 0 1.25rem;
    color: #fff;
}

.leisure-text p {
    color: var(--text-secondary);
    font-size: 0.98rem;
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.leisure-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.leisure-features li {
    font-size: 0.95rem;
    color: #cbd5e1;
    font-weight: 500;
}

.leisure-deco {
    display: flex;
    justify-content: center;
    align-items: center;
}

.deco-card {
    background: rgba(11, 14, 20, 0.6);
    border: 1px dashed var(--border-glow);
    padding: 3rem 2rem;
    border-radius: 16px;
    text-align: center;
    width: 100%;
    max-width: 320px;
}

.deco-icon {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

.deco-card h4 {
    font-size: 1.3rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 0.5rem;
}

.deco-card p {
    font-size: 0.85rem;
    color: var(--neon-blue);
    font-weight: 500;
}

/* 联系热线 */
.contact-section {
    padding: 3rem 1.5rem 6rem;
}

.contact-card {
    background: radial-gradient(circle at center, rgba(30, 41, 59, 0.5) 0%, rgba(15, 23, 42, 0.8) 100%);
    border: 1px solid var(--border-glow);
    box-shadow: 0 0 35px rgba(0, 240, 255, 0.08);
    border-radius: 20px;
    padding: 4rem 2rem;
    text-align: center;
    max-width: 860px;
    margin: 0 auto;
}

.contact-card h2 {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 0.75rem;
}

.contact-card p {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: 2rem;
}

.phone-box {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.phone-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    letter-spacing: 1px;
}

.phone-number {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 900;
    color: var(--neon-blue);
    text-decoration: none;
    letter-spacing: 2px;
    text-shadow: 0 0 25px rgba(0, 240, 255, 0.4);
    transition: transform 0.2s ease;
}

.phone-number:hover {
    transform: scale(1.03);
}

/* 底部与备案信息 */
.footer {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    background: #07090d;
    padding: 2.5rem 1.5rem;
    text-align: center;
}

.footer-container {
    max-width: 1240px;
    margin: 0 auto;
}

.footer-brand {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.footer-slogan {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.footer-divider {
    width: 40px;
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
    margin: 1.25rem auto;
}

.footer-icp a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.85rem;
    transition: color 0.2s ease;
}

.footer-icp a:hover {
    color: var(--neon-blue);
}

/* 移动端响应式优化 */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    .leisure-box {
        grid-template-columns: 1fr;
        padding: 2.5rem 1.5rem;
    }
    .grid-cards {
        grid-template-columns: 1fr;
    }
    .hero-section {
        padding: 4rem 1.5rem 3rem;
    }
}