/* style.css - 九游官方网站 */
:root {
    --primary: #1a1a2e;
    --secondary: #16213e;
    --accent: #f0c27a;
    --accent2: #e8a87c;
    --bg: #f8f5f0;
    --card-bg: rgba(255,255,255,0.85);
    --text: #2d2d2d;
    --text-light: #5a5a5a;
    --shadow: 0 8px 32px rgba(0,0,0,0.08);
    --radius: 20px;
    --glass: rgba(255,255,255,0.6);
    --border: rgba(0,0,0,0.06);
    --gradient: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    --gradient-accent: linear-gradient(135deg, #f0c27a 0%, #e8a87c 100%);
    --max-width: 1200px;
    --nav-height: 72px;
    --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
}
[data-theme="dark"] {
    --bg: #0d0d1a;
    --card-bg: rgba(26,26,46,0.85);
    --text: #e8e0d0;
    --text-light: #a09080;
    --shadow: 0 8px 32px rgba(0,0,0,0.4);
    --glass: rgba(26,26,46,0.6);
    --border: rgba(255,255,255,0.06);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    transition: background 0.3s, color 0.3s;
    overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-title { font-size: 2.4rem; font-weight: 700; text-align: center; margin-bottom: 16px; background: var(--gradient-accent); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.section-subtitle { text-align: center; color: var(--text-light); font-size: 1.1rem; margin-bottom: 48px; max-width: 700px; margin-left: auto; margin-right: auto; }
.btn {
    display: inline-flex; align-items: center; gap: 8px; padding: 14px 32px; border-radius: 50px;
    font-weight: 600; font-size: 1rem; cursor: pointer; transition: all 0.3s; border: none;
    background: var(--gradient-accent); color: #1a1a2e; box-shadow: 0 4px 20px rgba(240,194,122,0.3);
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(240,194,122,0.4); }
.btn-outline { background: transparent; border: 2px solid var(--accent); color: var(--accent); box-shadow: none; }
.btn-outline:hover { background: var(--accent); color: #1a1a2e; }
.card {
    background: var(--card-bg); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    border-radius: var(--radius); padding: 32px; box-shadow: var(--shadow); border: 1px solid var(--border);
    transition: transform 0.3s, box-shadow 0.3s;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 16px 48px rgba(0,0,0,0.12); }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.fade-up { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }
.badge {
    display: inline-block; padding: 4px 16px; border-radius: 50px; font-size: 0.85rem; font-weight: 500;
    background: rgba(240,194,122,0.15); color: var(--accent); border: 1px solid rgba(240,194,122,0.2);
}
header { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; background: var(--glass); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-bottom: 1px solid var(--border); height: var(--nav-height); transition: background 0.3s; }
nav { display: flex; align-items: center; justify-content: space-between; height: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.logo { font-size: 1.6rem; font-weight: 800; background: var(--gradient-accent); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; letter-spacing: 1px; display: flex; align-items: center; gap: 8px; }
.logo svg { width: 32px; height: 32px; }
.nav-links { display: flex; gap: 32px; align-items: center; }
.nav-links a { font-size: 0.95rem; font-weight: 500; color: var(--text); position: relative; padding: 4px 0; transition: color 0.3s; }
.nav-links a::after { content: ''; position: absolute; bottom: -2px; left: 0; width: 0; height: 2px; background: var(--gradient-accent); transition: width 0.3s; border-radius: 2px; }
.nav-links a:hover { color: var(--accent); }
.nav-links a:hover::after { width: 100%; }
.nav-actions { display: flex; align-items: center; gap: 16px; }
.theme-toggle { background: none; border: none; cursor: pointer; font-size: 1.4rem; color: var(--text); padding: 8px; border-radius: 50%; transition: background 0.3s; display: flex; align-items: center; }
.theme-toggle:hover { background: rgba(240,194,122,0.1); }
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; background: none; border: none; padding: 4px; }
.hamburger span { width: 28px; height: 2.5px; background: var(--text); border-radius: 4px; transition: all 0.3s; }
.mobile-menu { display: none; position: fixed; top: var(--nav-height); left: 0; right: 0; background: var(--card-bg); backdrop-filter: blur(20px); padding: 24px; border-bottom: 1px solid var(--border); box-shadow: var(--shadow); z-index: 999; }
.mobile-menu.active { display: block; }
.mobile-menu a { display: block; padding: 12px 0; font-size: 1.1rem; border-bottom: 1px solid var(--border); }
.mobile-menu a:last-child { border-bottom: none; }
.hero {
    min-height: 100vh; display: flex; align-items: center; position: relative; overflow: hidden;
    background: var(--gradient); padding-top: var(--nav-height);
}
.hero::before { content: ''; position: absolute; inset: 0; background: radial-gradient(circle at 30% 40%, rgba(240,194,122,0.08) 0%, transparent 60%), radial-gradient(circle at 70% 60%, rgba(232,168,124,0.06) 0%, transparent 50%); pointer-events: none; }
.hero-content { position: relative; z-index: 2; max-width: var(--max-width); margin: 0 auto; padding: 80px 24px; display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.hero-text h1 { font-size: 3.8rem; font-weight: 800; line-height: 1.15; color: #fff; margin-bottom: 24px; }
.hero-text h1 span { background: var(--gradient-accent); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-text p { font-size: 1.2rem; color: rgba(255,255,255,0.75); max-width: 520px; margin-bottom: 36px; }
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-visual { display: flex; justify-content: center; align-items: center; position: relative; }
.hero-card { background: rgba(255,255,255,0.05); backdrop-filter: blur(16px); border-radius: 32px; padding: 40px; border: 1px solid rgba(255,255,255,0.08); width: 100%; max-width: 480px; }
.hero-card-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.hero-card-item { background: rgba(255,255,255,0.06); border-radius: 16px; padding: 24px 16px; text-align: center; color: #fff; transition: background 0.3s; }
.hero-card-item:hover { background: rgba(255,255,255,0.1); }
.hero-card-item .num { font-size: 2rem; font-weight: 700; color: var(--accent); }
.hero-card-item .label { font-size: 0.85rem; color: rgba(255,255,255,0.6); margin-top: 4px; }
.hero-scroll { position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%); color: rgba(255,255,255,0.4); font-size: 0.9rem; display: flex; flex-direction: column; align-items: center; gap: 8px; animation: bounce 2s infinite; }
@keyframes bounce { 0%,100% { transform: translateX(-50%) translateY(0); } 50% { transform: translateX(-50%) translateY(8px); } }
.banner-carousel { position: relative; overflow: hidden; border-radius: var(--radius); margin-bottom: 48px; }
.banner-slides { display: flex; transition: transform 0.5s ease; }
.banner-slide { min-width: 100%; padding: 60px 40px; background: var(--gradient); color: #fff; min-height: 300px; display: flex; flex-direction: column; justify-content: center; }
.banner-slide h2 { font-size: 2.2rem; margin-bottom: 12px; }
.banner-slide p { font-size: 1.1rem; opacity: 0.8; max-width: 600px; }
.banner-dots { display: flex; justify-content: center; gap: 12px; margin-top: 20px; }
.banner-dot { width: 12px; height: 12px; border-radius: 50%; background: rgba(240,194,122,0.3); cursor: pointer; transition: background 0.3s; border: none; }
.banner-dot.active { background: var(--accent); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat-item { text-align: center; padding: 24px; }
.stat-item .num { font-size: 2.8rem; font-weight: 700; background: var(--gradient-accent); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.stat-item .label { color: var(--text-light); margin-top: 8px; font-size: 1rem; }
.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.team-card { text-align: center; }
.team-avatar { width: 120px; height: 120px; border-radius: 50%; margin: 0 auto 16px; background: var(--gradient); display: flex; align-items: center; justify-content: center; font-size: 2.5rem; color: #fff; font-weight: 700; }
.team-card h4 { font-size: 1.2rem; }
.team-card p { color: var(--text-light); font-size: 0.9rem; }
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.product-card { text-align: center; }
.product-icon { width: 80px; height: 80px; margin: 0 auto 16px; background: rgba(240,194,122,0.1); border-radius: 24px; display: flex; align-items: center; justify-content: center; font-size: 2rem; }
.product-card h4 { font-size: 1.3rem; margin-bottom: 8px; }
.product-card p { color: var(--text-light); font-size: 0.95rem; }
.testimonial-card { position: relative; padding: 32px; }
.testimonial-card .quote { font-size: 1.1rem; font-style: italic; margin-bottom: 16px; }
.testimonial-card .author { display: flex; align-items: center; gap: 12px; }
.testimonial-card .author-avatar { width: 48px; height: 48px; border-radius: 50%; background: var(--gradient); display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 600; }
.faq-item { border-bottom: 1px solid var(--border); padding: 20px 0; cursor: pointer; }
.faq-question { display: flex; justify-content: space-between; align-items: center; font-size: 1.1rem; font-weight: 600; }
.faq-question .icon { font-size: 1.5rem; transition: transform 0.3s; }
.faq-item.active .faq-question .icon { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.3s; padding-top: 0; color: var(--text-light); }
.faq-item.active .faq-answer { max-height: 300px; padding-top: 16px; }
.contact-info { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.contact-item { text-align: center; }
.contact-item .icon { font-size: 2rem; margin-bottom: 12px; }
footer { background: var(--primary); color: rgba(255,255,255,0.8); padding: 48px 0 24px; }
footer .container { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
footer h4 { color: #fff; margin-bottom: 16px; font-size: 1.1rem; }
footer a { color: rgba(255,255,255,0.6); transition: color 0.3s; display: block; padding: 4px 0; }
footer a:hover { color: var(--accent); }
footer .copyright { grid-column: 1 / -1; text-align: center; padding-top: 32px; border-top: 1px solid rgba(255,255,255,0.08); margin-top: 32px; font-size: 0.9rem; color: rgba(255,255,255,0.4); }
.footer-logo { font-size: 1.6rem; font-weight: 800; background: var(--gradient-accent); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; margin-bottom: 16px; display: inline-block; }
.back-to-top { position: fixed; bottom: 32px; right: 32px; width: 48px; height: 48px; border-radius: 50%; background: var(--gradient-accent); color: #1a1a2e; border: none; cursor: pointer; font-size: 1.4rem; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 20px rgba(240,194,122,0.3); opacity: 0; visibility: hidden; transition: all 0.3s; z-index: 999; }
.back-to-top.visible { opacity: 1; visibility: visible; }
.back-to-top:hover { transform: translateY(-4px); }
.search-overlay { 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-overlay.active { display: flex; }
.search-modal { background: var(--card-bg); border-radius: var(--radius); padding: 32px; width: 90%; max-width: 600px; box-shadow: var(--shadow); }
.search-modal input { width: 100%; padding: 16px 20px; border: 2px solid var(--border); border-radius: 12px; font-size: 1.1rem; background: var(--bg); color: var(--text); outline: none; }
.search-modal input:focus { border-color: var(--accent); }
.search-results { margin-top: 16px; max-height: 300px; overflow-y: auto; }
.search-results div { padding: 12px 0; border-bottom: 1px solid var(--border); cursor: pointer; }
.search-results div:hover { color: var(--accent); }
.search-close { position: absolute; top: 24px; right: 24px; background: none; border: none; color: #fff; font-size: 2rem; cursor: pointer; }
.breadcrumb { display: flex; gap: 8px; align-items: center; padding: 16px 0; font-size: 0.9rem; color: var(--text-light); flex-wrap: wrap; }
.breadcrumb a { color: var(--accent); }
.breadcrumb a:hover { text-decoration: underline; }
@media (max-width: 1024px) {
    .hero-content { grid-template-columns: 1fr; text-align: center; }
    .hero-text p { margin-left: auto; margin-right: auto; }
    .hero-btns { justify-content: center; }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .team-grid { grid-template-columns: repeat(2, 1fr); }
    footer .container { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
    .nav-links { display: none; }
    .hamburger { display: flex; }
    .hero-text h1 { font-size: 2.4rem; }
    .section-title { font-size: 1.8rem; }
    .grid-2, .grid-3, .grid-4, .team-grid, .product-grid, .stats-grid, .contact-info { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .hero-card-grid { grid-template-columns: 1fr 1fr; }
    footer .container { grid-template-columns: 1fr; }
    .section { padding: 48px 0; }
    .banner-slide { padding: 40px 24px; min-height: 200px; }
    .banner-slide h2 { font-size: 1.6rem; }
}
@media (max-width: 480px) {
    .hero-text h1 { font-size: 1.8rem; }
    .hero-card { padding: 24px; }
    .hero-card-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
    .hero-card-item { padding: 16px 8px; }
    .hero-card-item .num { font-size: 1.5rem; }
}
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 4px; }