@import url('fonts.css');

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

:root {
    --bg-gradient: linear-gradient(135deg, #0f0c29, #1C1917, #302b20);
    --accent: #CA8A04;
    --accent-hover: #a16f03;
    --accent-rgb: 202,138,4;
    --glow-rgb: 202,138,4;
    --glass-bg: rgba(255,255,255,0.07);
    --glass-border: rgba(255,255,255,0.12);
    --glass-hover-border: rgba(var(--accent-rgb),0.5);
    --text: #fff;
    --text-muted: rgba(255,255,255,0.55);
    --text-dim: rgba(255,255,255,0.35);
    --nav-glass-bg: rgba(255,255,255,0.07);
    --footer-bg: rgba(0,0,0,0.3);
}

body { font-family: 'Inter', -apple-system, "Microsoft YaHei", sans-serif; color: var(--text); line-height: 1.6; background: #111; overflow-x: hidden; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 40px; }

/* ===== Header ===== */
.site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 100; padding: 20px 0; transition: background .3s; }
.site-header.scrolled { background: rgba(0,0,0,0.6); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); }
.header-inner { display: flex; align-items: center; justify-content: space-between; }
.logo { font-family: 'Poppins', sans-serif; font-size: 1.4rem; font-weight: 700; color: #fff; text-decoration: none; letter-spacing: 1px; }
.logo-accent { color: var(--accent); }
.main-nav { display: flex; gap: 6px; background: var(--nav-glass-bg); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); padding: 8px 24px; border-radius: 40px; border: 1px solid var(--glass-border); }
.main-nav a { text-decoration: none; color: rgba(255,255,255,0.7); font-size: 0.9rem; padding: 6px 14px; border-radius: 20px; transition: color .2s, background .2s; }
.main-nav a:hover, .main-nav a.active { color: #fff; background: rgba(255,255,255,0.08); }
.menu-toggle { display: none; background: none; border: 1px solid rgba(255,255,255,0.2); color: #fff; font-size: 1.3rem; cursor: pointer; padding: 6px 10px; border-radius: 8px; }

/* ===== Glass Card ===== */
.glass { background: var(--glass-bg); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border: 1px solid var(--glass-border); border-radius: 16px; padding: 32px; transition: transform .3s, border-color .3s; }
.glass:hover { transform: translateY(-4px); border-color: var(--glass-hover-border); }

/* ===== Page Wrapper ===== */
.page-wrap { background: var(--bg-gradient); min-height: 100vh; position: relative; }
.page-wrap::before { content: ''; position: absolute; width: 500px; height: 500px; background: radial-gradient(circle, rgba(var(--glow-rgb),0.2), transparent 65%); top: -150px; right: -100px; border-radius: 50%; pointer-events: none; }
.page-wrap::after { content: ''; position: absolute; width: 350px; height: 350px; background: radial-gradient(circle, rgba(var(--glow-rgb),0.08), transparent 65%); bottom: -100px; left: -50px; border-radius: 50%; pointer-events: none; }
.page-content { position: relative; z-index: 2; }

/* ===== Hero ===== */
.hero { padding: 160px 0 80px; text-align: center; }
.hero h1 { font-family: 'Poppins', sans-serif; font-size: 3.2rem; font-weight: 700; line-height: 1.15; margin-bottom: 20px; }
.hero .accent { color: var(--accent); }
.hero p { font-size: 1.1rem; line-height: 1.7; color: var(--text-muted); margin-bottom: 36px; max-width: 600px; margin-left: auto; margin-right: auto; }

/* ===== Buttons ===== */
.btn { display: inline-block; background: linear-gradient(135deg, var(--accent), var(--accent-hover)); color: #fff; padding: 14px 36px; border: none; border-radius: 40px; font-size: 0.95rem; font-weight: 600; cursor: pointer; text-decoration: none; transition: transform .2s, box-shadow .2s; }
.btn:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(0,0,0,0.3); }
.btn-outline { display: inline-block; border: 1px solid rgba(255,255,255,0.25); color: #fff; padding: 14px 36px; font-size: 0.95rem; font-weight: 600; border-radius: 40px; text-decoration: none; margin-left: 12px; cursor: pointer; transition: border-color .2s; background: transparent; }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }

/* ===== Sections ===== */
.section { padding: 80px 0; position: relative; z-index: 2; }
.section-title { text-align: center; font-family: 'Poppins', sans-serif; font-size: 2rem; font-weight: 600; margin-bottom: 48px; color: var(--text); }

/* ===== Card Grid ===== */
.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.card { cursor: pointer; }
.card .icon-box { width: 48px; height: 48px; background: rgba(var(--accent-rgb),0.15); border-radius: 12px; display: flex; align-items: center; justify-content: center; margin-bottom: 16px; color: var(--accent); font-size: 1.2rem; }
.card h3 { font-family: 'Poppins', sans-serif; font-size: 1.1rem; font-weight: 600; margin-bottom: 8px; color: var(--text); }
.card p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.6; }

/* ===== Stats ===== */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.stat-item { text-align: center; padding: 28px 16px; }
.stat-number { display: block; font-family: 'Poppins', sans-serif; font-size: 2.5rem; font-weight: 700; color: var(--accent); }
.stat-label { color: var(--text-dim); font-size: 0.85rem; margin-top: 4px; }

/* ===== Page Banner ===== */
.page-banner { padding: 140px 0 60px; text-align: center; }
.page-banner h1 { font-family: 'Poppins', sans-serif; font-size: 2.5rem; font-weight: 700; }
.page-banner p { color: var(--text-muted); margin-top: 12px; font-size: 1.05rem; }

/* ===== Text Block ===== */
.text-block { max-width: 700px; margin: 0 auto; text-align: center; font-size: 1.05rem; color: var(--text-muted); line-height: 1.8; }

/* ===== Timeline ===== */
.timeline { max-width: 600px; margin: 0 auto; }
.timeline-item { display: flex; gap: 20px; padding: 20px 0; border-bottom: 1px solid rgba(255,255,255,0.08); }
.timeline-year { font-weight: 700; color: var(--accent); min-width: 60px; font-family: 'Poppins', sans-serif; }
.timeline-content { color: var(--text-muted); }

/* ===== News ===== */
.news-list { max-width: 800px; margin: 0 auto; }
.news-item { display: flex; gap: 24px; padding: 28px 0; border-bottom: 1px solid rgba(255,255,255,0.08); align-items: flex-start; }
.news-thumb { width: 160px; height: 100px; border-radius: 10px; flex-shrink: 0; overflow: hidden; }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; }
.news-thumb-empty { width: 100%; height: 100%; background: var(--glass-bg); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border: 1px solid var(--glass-border); border-radius: 10px; display: flex; align-items: center; justify-content: center; color: var(--text-dim); font-size: 1.4rem; }
.news-body { flex: 1; min-width: 0; }
.news-body time { color: var(--text-dim); font-size: 0.85rem; }
.news-body h3 { margin: 6px 0 8px; }
.news-body h3 a { color: var(--text); text-decoration: none; transition: color .2s; }
.news-body h3 a:hover { color: var(--accent); }
.news-body p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* News Card Grid (homepage) */
.news-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.news-card { text-decoration: none; color: inherit; transition: transform .3s, border-color .3s; cursor: pointer; overflow: hidden; padding: 0; }
.news-card:hover { transform: translateY(-4px); border-color: var(--glass-hover-border); }
.news-card-thumb { width: 100%; height: 180px; overflow: hidden; }
.news-card-thumb img { width: 100%; height: 100%; object-fit: cover; }
.news-card-empty { width: 100%; height: 180px; background: rgba(255,255,255,0.03); display: flex; align-items: center; justify-content: center; color: var(--text-dim); font-size: 1.6rem; }
.news-card-body { padding: 20px 24px 24px; }
.news-card-body time { color: var(--text-dim); font-size: 0.8rem; }
.news-card-body h3 { font-family: 'Poppins', sans-serif; font-size: 1rem; font-weight: 600; margin: 6px 0 8px; color: var(--text); }
.news-card-body p { color: var(--text-muted); font-size: 0.85rem; line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* ===== Article Detail ===== */
.article-detail { max-width: 700px; margin: 0 auto; }
.article-meta { color: var(--text-dim); margin-bottom: 24px; }
.article-content { line-height: 1.8; color: var(--text-muted); overflow-wrap: break-word; }
.article-content p { margin-bottom: 16px; }
.article-content img { max-width: 100%; height: auto; border-radius: 8px; }
.article-back { margin-top: 32px; }
.article-back a { color: var(--accent); text-decoration: none; }

/* ===== Contact ===== */
.contact-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.contact-info h2, .contact-form h2 { color: var(--text); margin-bottom: 20px; font-family: 'Poppins', sans-serif; }
.contact-info p { margin: 8px 0; color: var(--text-muted); }
.captcha-row { display: flex; gap: 12px; align-items: center; }
.captcha-row input { flex: 1; }
.captcha-img { height: 44px; border-radius: 8px; cursor: pointer; border: 1px solid var(--glass-border); }
.contact-alert { padding: 12px 16px; border-radius: 10px; margin-bottom: 16px; font-size: 0.9rem; }
.contact-alert-success { background: rgba(34,197,94,0.12); color: #4ade80; border: 1px solid rgba(34,197,94,0.2); }
.contact-alert-error { background: rgba(239,68,68,0.12); color: #f87171; border: 1px solid rgba(239,68,68,0.2); }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 4px; font-weight: 500; color: var(--text-muted); }
.form-group input, .form-group textarea { width: 100%; padding: 12px 16px; border: 1px solid var(--glass-border); border-radius: 8px; font-size: 0.95rem; background: var(--glass-bg); color: var(--text); backdrop-filter: blur(8px); }
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--accent); }

/* ===== Products Grid ===== */
.products-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.product-card { cursor: pointer; }
.product-card h3 { font-family: 'Poppins', sans-serif; font-size: 1.1rem; font-weight: 600; margin-bottom: 8px; color: var(--text); }
.product-card p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.6; }

/* ===== Line Clamp ===== */
.line-clamp-3 { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }

/* ===== Footer ===== */
.site-footer { background: var(--footer-bg); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); padding: 48px 0 24px; position: relative; z-index: 2; border-top: 1px solid rgba(255,255,255,0.06); }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 32px; margin-bottom: 32px; }
.footer-grid h3, .footer-grid h4 { margin-bottom: 12px; color: var(--text); }
.footer-grid a { display: block; color: var(--text-muted); text-decoration: none; margin: 6px 0; transition: color .2s; }
.footer-grid a:hover { color: var(--accent); }
.footer-grid p { color: var(--text-muted); font-size: 0.9rem; margin: 4px 0; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 20px; text-align: center; font-size: 0.85rem; color: var(--text-dim); }

/* ===== Mobile ===== */
@media (max-width: 768px) {
    .container { padding: 0 20px; }
    .menu-toggle { display: block; }
    .main-nav { display: none; flex-direction: column; position: absolute; top: 70px; left: 20px; right: 20px; padding: 16px; border-radius: 16px; gap: 4px; }
    .main-nav.open { display: flex; }
    .main-nav a { padding: 10px 16px; }
    .hero { padding: 120px 0 60px; }
    .hero h1 { font-size: 2rem; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-layout { grid-template-columns: 1fr; }
    .page-banner { padding: 100px 0 40px; }
    .page-banner h1 { font-size: 1.8rem; }
    .news-item { flex-direction: column; }
    .news-thumb { width: 100%; height: 180px; }
    .news-tabs { justify-content: flex-start; overflow-x: auto; }
}

/* ===== News Tabs ===== */
.news-tabs { display: flex; justify-content: center; gap: 8px; margin-bottom: 32px; flex-wrap: wrap; }
.tab-btn { background: var(--glass-bg); backdrop-filter: blur(8px); border: 1px solid var(--glass-border); color: var(--text-muted); padding: 8px 20px; border-radius: 24px; font-size: 0.88rem; cursor: pointer; transition: all .2s; font-family: inherit; }
.tab-btn:hover { color: var(--text); border-color: var(--glass-hover-border); }
.tab-btn.active { background: linear-gradient(135deg, var(--accent), var(--accent-hover)); color: #fff; border-color: transparent; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }