/* DA SHI FOOTBALL Official Website */
:root {
    --primary: #2B9AF2;
    --primary-dark: #0076FF;
    --accent: #40E0D0;
    --accent-hover: #35c9ba;
    --bg-light: #edf2fd;
    --bg-white: #ffffff;
    --text-dark: #1a2332;
    --text-muted: #64748b;
    --text-light: #94a3b8;
    --border: #e2e8f0;
    --shadow-sm: 0 2px 8px rgba(43, 154, 242, 0.08);
    --shadow-md: 0 8px 32px rgba(43, 154, 242, 0.12);
    --shadow-lg: 0 20px 60px rgba(43, 154, 242, 0.15);
    --radius: 16px;
    --radius-sm: 10px;
    --nav-height: 72px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    color: var(--text-dark);
    background: var(--bg-white);
    line-height: 1.6;
    overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* Navbar */
.navbar { position: fixed; top: 0; left: 0; right: 0; height: var(--nav-height); z-index: 1000; transition: var(--transition); }
.navbar.scrolled { background: rgba(255,255,255,0.95); backdrop-filter: blur(12px); box-shadow: var(--shadow-sm); }
.navbar-inner { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.navbar-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}
.navbar-logo img { height: 40px; width: 40px; flex-shrink: 0; }
.logo-text { display: flex; flex-direction: column; line-height: 1.15; }
.logo-text strong { font-size: 17px; font-weight: 800; color: var(--text-dark); letter-spacing: 0.02em; }
.logo-text small { font-size: 10px; font-weight: 600; color: var(--primary); letter-spacing: 0.08em; text-transform: uppercase; }
.navbar-nav { display: flex; align-items: center; gap: 32px; list-style: none; }
.navbar-nav a { font-size: 15px; font-weight: 500; color: var(--text-muted); transition: color var(--transition); position: relative; }
.navbar-nav a:hover, .navbar-nav a.active { color: var(--primary); }
.navbar-nav a::after { content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px; background: var(--primary); transition: width var(--transition); }
.navbar-nav a:hover::after, .navbar-nav a.active::after { width: 100%; }
.navbar-actions { display: flex; align-items: center; gap: 12px; }

.lang-switch {
    display: flex;
    align-items: center;
    background: rgba(43, 154, 242, 0.08);
    border-radius: 50px;
    padding: 3px;
    gap: 2px;
}

.lang-btn {
    border: none;
    background: transparent;
    color: var(--text-muted);
    font-size: 13px;
    font-weight: 600;
    padding: 6px 12px;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    line-height: 1;
}

.lang-btn:hover { color: var(--primary); }

.lang-btn.active {
    background: #fff;
    color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 10px 24px; border-radius: 50px; font-size: 15px; font-weight: 600;
    border: none; cursor: pointer; transition: var(--transition); white-space: nowrap;
}
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; box-shadow: 0 4px 16px rgba(43,154,242,0.35); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(43,154,242,0.45); }
.btn-accent { background: var(--accent); color: #fff; box-shadow: 0 4px 16px rgba(64,224,208,0.35); }
.btn-accent:hover { background: var(--accent-hover); transform: translateY(-2px); }
.btn-outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-lg { padding: 14px 36px; font-size: 16px; }
.btn-sm { padding: 8px 18px; font-size: 14px; }
.menu-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.menu-toggle span { display: block; width: 24px; height: 2px; background: var(--text-dark); transition: var(--transition); }

/* Hero */
.hero {
    position: relative; min-height: 100vh; display: flex; align-items: center;
    padding-top: var(--nav-height);
    background: linear-gradient(135deg, #edf2fd 0%, #f0f7ff 40%, #e8f4fd 100%);
    overflow: hidden;
}
.hero::before { content: ''; position: absolute; top: -50%; right: -20%; width: 800px; height: 800px; background: radial-gradient(circle, rgba(43,154,242,0.08) 0%, transparent 70%); border-radius: 50%; }
.hero::after { content: ''; position: absolute; bottom: -30%; left: -10%; width: 600px; height: 600px; background: radial-gradient(circle, rgba(64,224,208,0.06) 0%, transparent 70%); border-radius: 50%; }
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; position: relative; z-index: 1; }
.hero-content { animation: fadeInUp 0.8s ease-out; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; padding: 6px 16px; background: rgba(43,154,242,0.1); border-radius: 50px; font-size: 13px; font-weight: 600; color: var(--primary); margin-bottom: 24px; }
.hero-badge::before { content: ''; width: 8px; height: 8px; background: var(--accent); border-radius: 50%; animation: pulse 2s infinite; }
.hero-title { font-size: clamp(36px, 5vw, 56px); font-weight: 800; line-height: 1.15; margin-bottom: 20px; background: linear-gradient(135deg, var(--text-dark) 0%, var(--primary-dark) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-subtitle { font-size: 18px; color: var(--text-muted); margin-bottom: 36px; max-width: 480px; line-height: 1.7; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 48px; }
.hero-stats { display: flex; gap: 40px; }
.stat-value { font-size: 28px; font-weight: 800; color: var(--primary-dark); }
.stat-label { font-size: 13px; color: var(--text-muted); margin-top: 4px; }
.hero-visual { display: flex; justify-content: center; animation: fadeInUp 0.8s ease-out 0.2s both; }

.phone-mockup { position: relative; width: 300px; }
.phone-frame { background: linear-gradient(145deg, #1a2332, #2d3a4f); border-radius: 36px; padding: 12px; box-shadow: var(--shadow-lg); }
.phone-screen { background: var(--bg-light); border-radius: 28px; overflow: hidden; aspect-ratio: 9/16; }
.phone-screen-inner { padding: 20px 16px; height: 100%; display: flex; flex-direction: column; }
.phone-header { display: flex; align-items: center; gap: 8px; margin-bottom: 16px; }
.phone-header-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }
.phone-header-title { font-size: 12px; font-weight: 700; color: var(--primary-dark); }
.match-card { background: #fff; border-radius: 12px; padding: 12px; margin-bottom: 10px; box-shadow: var(--shadow-sm); }
.match-league { font-size: 10px; color: var(--text-light); margin-bottom: 8px; }
.match-teams { display: flex; align-items: center; justify-content: space-between; font-size: 11px; font-weight: 600; }
.match-score { font-size: 16px; font-weight: 800; color: var(--primary); }
.match-odds { display: flex; gap: 6px; margin-top: 8px; }
.odds-item { flex: 1; text-align: center; background: var(--bg-light); border-radius: 6px; padding: 4px; font-size: 10px; }
.odds-item span { display: block; font-weight: 700; color: var(--primary); }
.phone-float { position: absolute; background: #fff; border-radius: 12px; padding: 12px 16px; box-shadow: var(--shadow-md); animation: float 3s ease-in-out infinite; }
.phone-float-1 { top: 20%; right: -40px; }
.phone-float-2 { bottom: 25%; left: -50px; animation-delay: 1.5s; }
.float-text { font-size: 11px; font-weight: 600; }
.float-sub { font-size: 10px; color: var(--accent); font-weight: 700; }

/* Sections */
section { padding: 100px 0; }
.section-header { text-align: center; margin-bottom: 60px; }
.section-tag { display: inline-block; padding: 4px 16px; background: rgba(43,154,242,0.1); color: var(--primary); border-radius: 50px; font-size: 13px; font-weight: 600; margin-bottom: 16px; }
.section-title { font-size: clamp(28px, 4vw, 40px); font-weight: 800; margin-bottom: 16px; }
.section-desc { font-size: 16px; color: var(--text-muted); max-width: 560px; margin: 0 auto; }

.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 32px 28px; transition: var(--transition); position: relative; overflow: hidden; }
.feature-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--primary), var(--accent)); transform: scaleX(0); transition: transform var(--transition); }
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: transparent; }
.feature-card:hover::before { transform: scaleX(1); }
.feature-icon { width: 56px; height: 56px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 26px; margin-bottom: 20px; background: linear-gradient(135deg, rgba(43,154,242,0.1), rgba(64,224,208,0.1)); }
.feature-title { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.feature-desc { font-size: 14px; color: var(--text-muted); line-height: 1.7; }

.how-it-works { background: var(--bg-light); }
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative; }
.steps-grid::before { content: ''; position: absolute; top: 40px; left: 12.5%; right: 12.5%; height: 2px; background: linear-gradient(90deg, var(--primary), var(--accent)); opacity: 0.3; }
.step-card { text-align: center; position: relative; z-index: 1; }
.step-number { width: 80px; height: 80px; border-radius: 50%; background: #fff; border: 3px solid var(--primary); display: flex; align-items: center; justify-content: center; font-size: 28px; font-weight: 800; color: var(--primary); margin: 0 auto 20px; box-shadow: var(--shadow-sm); }
.step-title { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.step-desc { font-size: 13px; color: var(--text-muted); padding: 0 8px; }

.promo-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.promo-card { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); transition: var(--transition); }
.promo-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.promo-header { padding: 28px 24px; color: #fff; position: relative; overflow: hidden; }
.promo-header::after { content: ''; position: absolute; top: -50%; right: -30%; width: 200px; height: 200px; background: rgba(255,255,255,0.1); border-radius: 50%; }
.promo-header-1 { background: linear-gradient(135deg, #2B9AF2, #0076FF); }
.promo-header-2 { background: linear-gradient(135deg, #40E0D0, #2B9AF2); }
.promo-header-3 { background: linear-gradient(135deg, #667eea, #764ba2); }
.promo-header-4 { background: linear-gradient(135deg, #f093fb, #f5576c); }
.promo-header-5 { background: linear-gradient(135deg, #4facfe, #00f2fe); }
.promo-header-6 { background: linear-gradient(135deg, #43e97b, #38f9d7); }
.promo-tag { font-size: 11px; font-weight: 600; opacity: 0.85; margin-bottom: 8px; position: relative; z-index: 1; }
.promo-title { font-size: 20px; font-weight: 800; position: relative; z-index: 1; }
.promo-body { padding: 20px 24px; background: #fff; }
.promo-desc { font-size: 14px; color: var(--text-muted); line-height: 1.6; margin-bottom: 12px; }
.promo-meta { font-size: 12px; color: var(--text-light); }

.agent-section { background: linear-gradient(135deg, #1a2332 0%, #2d3a4f 100%); color: #fff; }
.agent-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.agent-content .section-tag { background: rgba(64,224,208,0.15); color: var(--accent); }
.agent-content .section-title { color: #fff; text-align: left; }
.agent-content .section-desc { color: rgba(255,255,255,0.7); text-align: left; margin: 0 0 32px; }
.agent-features { list-style: none; margin-bottom: 32px; }
.agent-features li { display: flex; align-items: center; gap: 12px; padding: 10px 0; font-size: 15px; color: rgba(255,255,255,0.85); }
.agent-features li::before { content: '✓'; width: 24px; height: 24px; background: rgba(64,224,208,0.2); color: var(--accent); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700; flex-shrink: 0; }
.agent-visual { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.agent-stat-card { background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.1); border-radius: var(--radius); padding: 24px; text-align: center; backdrop-filter: blur(8px); }
.agent-stat-card.highlight { background: rgba(64,224,208,0.12); border-color: rgba(64,224,208,0.3); }
.agent-stat-value { font-size: 32px; font-weight: 800; color: var(--accent); margin-bottom: 4px; }
.agent-stat-label { font-size: 13px; color: rgba(255,255,255,0.6); }

.security { background: var(--bg-light); }
.security-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.security-item { text-align: center; padding: 32px 20px; background: #fff; border-radius: var(--radius); box-shadow: var(--shadow-sm); transition: var(--transition); }
.security-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.security-icon { font-size: 36px; margin-bottom: 16px; }
.security-title { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.security-desc { font-size: 13px; color: var(--text-muted); }

.compliance-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.compliance-card {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 28px 24px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    min-height: 100%;
}
.compliance-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: rgba(43, 154, 242, 0.35);
}
.compliance-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(43, 154, 242, 0.1);
    border-radius: 12px;
    color: var(--primary);
}
.compliance-icon svg { width: 24px; height: 24px; display: block; }
.compliance-title { font-size: 16px; font-weight: 700; line-height: 1.35; }
.compliance-desc { font-size: 13px; color: var(--text-muted); flex: 1; }
.compliance-action {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary);
    margin-top: auto;
}
.compliance-action::after { content: '→'; transition: transform var(--transition); }
.compliance-card:hover .compliance-action::after { transform: translateX(4px); }

.download-wrap { max-width: 720px; margin: 0 auto; text-align: center; }
.download-wrap .section-tag { display: inline-block; }
.download-wrap .section-title,
.download-wrap .section-desc { text-align: center; margin-left: auto; margin-right: auto; }
.download-wrap .download-platforms { justify-content: center; }
.download-platforms { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 24px; }
.platform-btn { display: flex; align-items: center; gap: 12px; padding: 12px 20px; background: var(--text-dark); color: #fff; border-radius: var(--radius-sm); transition: var(--transition); min-width: 168px; text-align: left; }
.platform-btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.platform-btn.h5-btn { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); }
.platform-btn.h5-btn:hover { background: linear-gradient(135deg, var(--primary-dark), #005bb5); }
.platform-btn.google-btn { background: #1a1a1a; }
.platform-btn.google-btn:hover { background: #2d2d2d; }
.platform-btn.apple-btn { background: #000; }
.platform-btn.apple-btn:hover { background: #1a1a1a; }
.platform-icon { flex-shrink: 0; width: 28px; height: 28px; display: flex; align-items: center; justify-content: center; }
.platform-icon svg { width: 28px; height: 28px; display: block; }
.platform-text { line-height: 1.2; }
.platform-text small { display: block; font-size: 10px; opacity: 0.75; letter-spacing: 0.02em; }
.platform-text strong { display: block; font-size: 15px; font-weight: 700; letter-spacing: 0.01em; }
.download-domain { font-size: 14px; color: var(--text-muted); }
.download-domain strong { color: var(--primary); }

.footer { background: #0f172a; color: rgba(255,255,255,0.7); padding: 60px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand .footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}
.footer-brand .footer-logo img { height: 36px; width: 36px; }
.footer-brand .footer-logo .logo-text strong { color: #fff; }
.footer-brand .footer-logo .logo-text small { color: var(--accent); }
.footer-brand p { font-size: 14px; line-height: 1.7; max-width: 300px; }
.footer-col h4 { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 16px; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { font-size: 14px; transition: color var(--transition); }
.footer-col a:hover { color: var(--accent); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; font-size: 13px; }
.footer-disclaimer { font-size: 12px; color: rgba(255,255,255,0.4); max-width: 600px; line-height: 1.6; }

.mobile-banner {
    display: none; position: fixed; bottom: 0; left: 0; right: 0;
    background: rgba(26,35,50,0.95); backdrop-filter: blur(12px);
    padding: 12px 16px; z-index: 999; align-items: center; justify-content: space-between; gap: 12px;
}
.mobile-banner-text { color: #fff; font-size: 14px; font-weight: 600; }
body.has-mobile-banner { padding-bottom: 60px; }

@keyframes fadeInUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (max-width: 1024px) {
    .features-grid, .promo-grid { grid-template-columns: repeat(2, 1fr); }
    .steps-grid { grid-template-columns: repeat(2, 1fr); }
    .steps-grid::before { display: none; }
    .security-grid { grid-template-columns: repeat(2, 1fr); }
    .compliance-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
    .logo-text small { font-size: 9px; }
    .logo-text strong { font-size: 15px; }
    .navbar-nav, .navbar-actions .btn-outline, .navbar-actions .btn-primary { display: none; }
    .navbar-actions .lang-switch { display: flex; }
    .menu-toggle { display: flex; }
    .navbar-nav.open { display: flex; flex-direction: column; position: absolute; top: var(--nav-height); left: 0; right: 0; background: #fff; padding: 24px; box-shadow: var(--shadow-md); gap: 16px; }
    .hero-grid { grid-template-columns: 1fr; text-align: center; }
    .hero-subtitle { margin-left: auto; margin-right: auto; }
    .hero-actions, .hero-stats { justify-content: center; }
    .hero-visual { display: none; }
    .features-grid, .promo-grid, .steps-grid { grid-template-columns: 1fr; }
    .compliance-grid { grid-template-columns: 1fr; }
    .agent-grid { grid-template-columns: 1fr; }
    .agent-content .section-title, .agent-content .section-desc, .download-info .section-title, .download-info .section-desc { text-align: center; margin-left: auto; margin-right: auto; }
    .download-platforms { justify-content: center; }
    .footer-grid { grid-template-columns: 1fr; text-align: center; }
    .footer-brand p { margin: 0 auto; }
    .footer-bottom { flex-direction: column; text-align: center; }
    section { padding: 60px 0; }
}