/* ===== Variables ===== */
:root {
    --primary: #6366f1;
    --primary-light: #a5b4fc;
    --accent: #06b6d4;
    --gold: #f59e0b;
    --gold-light: #fbbf24;
    --success: #10b981;
    --danger: #ef4444;
    --bg: #0a0e1a;
    --bg-card: #131a2e;
    --bg-card2: #1a2340;
    --text: #f1f5f9;
    --text2: #94a3b8;
    --text3: #64748b;
    --border: #1e2d4a;
    --g1: linear-gradient(135deg, #6366f1, #06b6d4);
    --g2: linear-gradient(135deg, #f59e0b, #f97316);
    --g3: linear-gradient(135deg, #10b981, #06b6d4);
    --radius: 14px;
    --radius-lg: 22px;
}

*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
}
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
a { text-decoration: none; color: inherit; transition: all .3s; }

/* ===== Navbar ===== */
.navbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    padding: 14px 0;
    background: rgba(10, 14, 26, 0.88);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(99,102,241,0.08);
    transition: all .3s;
}
.nav-content { display: flex; align-items: center; justify-content: space-between; }
.logo { display: flex; align-items: center; gap: 8px; font-size: 1.25rem; font-weight: 800; }
.logo-icon { font-size: 1.5rem; }
.highlight { background: var(--g1); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { color: var(--text2); font-weight: 500; font-size: .92rem; }
.nav-links a:hover { color: var(--text); }
.nav-cta { background: var(--g1); color: #fff !important; padding: 8px 20px; border-radius: 8px; font-weight: 600 !important; }
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 4px 15px rgba(99,102,241,.4); }
.mobile-menu { display: none; font-size: 1.6rem; cursor: pointer; color: var(--text); }
.mobile-nav { display: none; flex-direction: column; padding: 0 24px; overflow: hidden; max-height: 0; transition: max-height .3s; }
.mobile-nav.open { max-height: 300px; padding-bottom: 16px; }
.mobile-nav a { padding: 10px 0; color: var(--text2); font-weight: 500; border-bottom: 1px solid var(--border); }

/* ===== Buttons ===== */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 12px 28px; border-radius: 12px; font-weight: 700; font-size: 1rem;
    cursor: pointer; border: none; transition: all .3s; font-family: inherit;
}
.btn-primary { background: var(--g1); color: #fff; box-shadow: 0 4px 15px rgba(99,102,241,.3); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(99,102,241,.45); }
.btn-outline { background: transparent; color: var(--text); border: 2px solid var(--border); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary-light); }
.btn-lg { padding: 16px 32px; font-size: 1.05rem; border-radius: 14px; }

/* ===== Hero ===== */
.hero {
    position: relative; padding: 150px 0 90px; text-align: center;
    overflow: hidden; min-height: 100vh; display: flex; align-items: center;
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.orb { position: absolute; border-radius: 50%; filter: blur(90px); opacity: .35; animation: orb-float 8s ease-in-out infinite; }
.orb-1 { width: 500px; height: 500px; background: var(--primary); top: -10%; left: -8%; }
.orb-2 { width: 400px; height: 400px; background: var(--accent); bottom: -5%; right: -5%; animation-delay: -3s; }
.orb-3 { width: 300px; height: 300px; background: var(--gold); top: 40%; left: 50%; transform: translateX(-50%); opacity: .15; animation-delay: -5s; }
@keyframes orb-float { 0%,100%{transform:translateY(0) scale(1)} 50%{transform:translateY(-25px) scale(1.04)} }
.hero-content { position: relative; z-index: 1; }
.hero-badge {
    display: inline-block; padding: 8px 22px;
    background: rgba(99,102,241,.12); border: 1px solid rgba(99,102,241,.25);
    border-radius: 50px; font-size: .88rem; font-weight: 600; color: var(--primary-light);
    margin-bottom: 28px; animation: fadeUp .8s ease;
}
.hero h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); font-weight: 900; line-height: 1.2; margin-bottom: 20px; animation: fadeUp .8s ease .1s both; }
.gradient-text { background: var(--g3); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.gradient-text-gold { background: var(--g2); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-sub { font-size: 1.1rem; color: var(--text2); max-width: 680px; margin: 0 auto 36px; line-height: 1.8; animation: fadeUp .8s ease .2s both; }
.hero-actions { display: flex; align-items: center; justify-content: center; gap: 14px; margin-bottom: 56px; flex-wrap: wrap; animation: fadeUp .8s ease .3s both; }
.hero-stats { display: flex; align-items: center; justify-content: center; gap: 32px; flex-wrap: wrap; animation: fadeUp .8s ease .4s both; }
.stat { display: flex; flex-direction: column; align-items: center; }
.stat-num { font-size: 1.8rem; font-weight: 800; background: var(--g1); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.stat-lbl { font-size: .82rem; color: var(--text3); margin-top: 2px; }
.stat-line { width: 1px; height: 36px; background: var(--border); }
@keyframes fadeUp { from{opacity:0;transform:translateY(25px)} to{opacity:1;transform:translateY(0)} }

/* ===== Section Header ===== */
.section-header { text-align: center; margin-bottom: 56px; }
.badge {
    display: inline-block; padding: 6px 16px;
    background: rgba(99,102,241,.1); border: 1px solid rgba(99,102,241,.2);
    border-radius: 50px; font-size: .82rem; font-weight: 600; color: var(--primary-light);
    margin-bottom: 14px;
}
.section-header h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); font-weight: 800; margin-bottom: 10px; line-height: 1.3; }
.section-header p { font-size: 1rem; color: var(--text2); max-width: 600px; margin: 0 auto; }

/* ===== Pain Section ===== */
.pain-section { padding: 90px 0; }
.pain-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.pain-card {
    background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 28px 24px; text-align: center; transition: all .3s;
}
.pain-card:hover { transform: translateY(-4px); border-color: rgba(239,68,68,.3); box-shadow: 0 12px 30px rgba(0,0,0,.3); }
.pain-icon { font-size: 2.2rem; display: block; margin-bottom: 12px; }
.pain-card h4 { font-size: 1.05rem; font-weight: 700; margin-bottom: 6px; }
.pain-card p { color: var(--text2); font-size: .9rem; }

/* ===== CTA Section ===== */
.cta-section { padding: 80px 0; }
.cta-card {
    display: flex; align-items: center; gap: 40px;
    background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg);
    padding: 50px 44px; position: relative; overflow: hidden; box-shadow: 0 20px 40px rgba(0,0,0,.3);
}
.cta-card::before { content:''; position:absolute; top:0; left:0; right:0; height:4px; background:var(--g1); }
.cta-left { flex: 1; }
.cta-left h2 { font-size: 1.7rem; font-weight: 800; line-height: 1.4; margin-bottom: 10px; }
.cta-left p { color: var(--text2); font-size: 1rem; margin-bottom: 14px; }
.cta-highlight {
    display: inline-block; background: var(--g1); color: #fff;
    padding: 10px 22px; border-radius: 10px; font-weight: 700; font-size: 1.05rem;
    animation: pulse-g 2.5s ease-in-out infinite;
}
@keyframes pulse-g { 0%,100%{box-shadow:0 0 18px rgba(99,102,241,.3)} 50%{box-shadow:0 0 32px rgba(99,102,241,.55)} }
.cta-right { display: flex; flex-direction: column; gap: 12px; min-width: 280px; }
.contact-btn {
    display: flex; align-items: center; gap: 12px;
    padding: 15px 22px; border-radius: 12px; font-weight: 700; font-size: 1rem;
    color: #fff; transition: all .3s; cursor: pointer;
}
.contact-btn:hover { transform: translateY(-2px); color: #fff; }
.cb-icon { font-size: 1.3rem; }
.cb-text { display: flex; flex-direction: column; }
.cb-label { font-weight: 700; font-size: .95rem; }
.cb-desc { font-size: .75rem; opacity: .85; font-weight: 400; }
.wechat-btn { background: linear-gradient(135deg, #07c160, #06ad56); box-shadow: 0 4px 12px rgba(7,193,96,.3); }
.wechat-btn:hover { box-shadow: 0 8px 22px rgba(7,193,96,.45); }
.whatsapp-btn { background: linear-gradient(135deg, #25d366, #128c7e); box-shadow: 0 4px 12px rgba(37,211,102,.3); }
.whatsapp-btn:hover { box-shadow: 0 8px 22px rgba(37,211,102,.45); }
.line-btn { background: linear-gradient(135deg, #00b900, #009900); box-shadow: 0 4px 12px rgba(0,185,0,.3); }
.line-btn:hover { box-shadow: 0 8px 22px rgba(0,185,0,.45); }
.cta-limit { text-align: center; color: var(--gold); font-size: .84rem; font-weight: 600; margin-top: 4px; animation: blink 2s ease-in-out infinite; }
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:.5} }

/* ===== Clinics ===== */
.clinics-section { padding: 90px 0; background: linear-gradient(180deg, var(--bg) 0%, rgba(19,26,46,.6) 50%, var(--bg) 100%); }
.clinics-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.clinic-card {
    background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg);
    padding: 36px 28px; position: relative; overflow: hidden; transition: all .4s;
}
.clinic-card::before { content:''; position:absolute; top:0; left:0; right:0; height:3px; background:var(--g1); opacity:0; transition:opacity .3s; }
.clinic-card:hover { transform: translateY(-6px); border-color: rgba(99,102,241,.3); box-shadow: 0 20px 40px rgba(0,0,0,.35); }
.clinic-card:hover::before { opacity: 1; }
.clinic-tag {
    display: inline-block; padding: 4px 12px; background: rgba(245,158,11,.12);
    border: 1px solid rgba(245,158,11,.25); border-radius: 6px;
    font-size: .78rem; font-weight: 700; color: var(--gold-light); margin-bottom: 14px;
}
.clinic-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 4px; }
.clinic-sub { color: var(--text3); font-size: .88rem; margin-bottom: 16px; }
.clinic-features { list-style: none; margin-bottom: 18px; }
.clinic-features li { padding: 5px 0; font-size: .9rem; color: var(--text2); }
.clinic-specialties { display: flex; flex-wrap: wrap; gap: 8px; }
.clinic-specialties span {
    padding: 4px 12px; background: rgba(6,182,212,.1); border: 1px solid rgba(6,182,212,.2);
    border-radius: 6px; font-size: .78rem; font-weight: 600; color: var(--accent);
}

/* ===== Services ===== */
.services-section { padding: 90px 0; }
.services-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.service-card {
    background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 32px 24px; transition: all .4s; position: relative; overflow: hidden;
}
.service-card::before { content:''; position:absolute; top:0; left:0; right:0; height:3px; background:var(--g1); opacity:0; transition:opacity .3s; }
.service-card:hover { transform: translateY(-5px); border-color: rgba(99,102,241,.3); box-shadow: 0 16px 35px rgba(0,0,0,.3); }
.service-card:hover::before { opacity: 1; }
.service-icon { font-size: 2.2rem; margin-bottom: 14px; display: block; }
.service-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 8px; }
.service-card p { color: var(--text2); font-size: .88rem; line-height: 1.65; }

/* ===== Why Japan ===== */
.why-japan { padding: 90px 0; background: linear-gradient(180deg, var(--bg) 0%, rgba(19,26,46,.5) 50%, var(--bg) 100%); }
.why-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.why-card {
    background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg);
    padding: 36px 28px; text-align: center; transition: all .3s;
}
.why-card:hover { transform: translateY(-4px); border-color: rgba(99,102,241,.3); box-shadow: 0 16px 32px rgba(0,0,0,.3); }
.why-num { font-size: 2.8rem; font-weight: 900; background: var(--g1); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; margin-bottom: 12px; }
.why-card h4 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
.why-card p { color: var(--text2); font-size: .88rem; line-height: 1.65; }

/* ===== Process ===== */
.process-section { padding: 90px 0; }
.process-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.process-card {
    background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 32px 24px; text-align: center; transition: all .3s;
}
.process-card:hover { transform: translateY(-4px); border-color: rgba(99,102,241,.3); }
.process-num { font-size: 2.4rem; font-weight: 900; background: var(--g1); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; margin-bottom: 10px; }
.process-card h4 { font-size: 1.05rem; font-weight: 700; margin-bottom: 6px; }
.process-card p { color: var(--text2); font-size: .88rem; }

/* ===== Testimonials ===== */
.testimonials { padding: 90px 0; background: linear-gradient(180deg, var(--bg) 0%, rgba(19,26,46,.5) 50%, var(--bg) 100%); }
.testi-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.testi-card {
    background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg);
    padding: 32px 28px; transition: all .3s;
}
.testi-card:hover { border-color: rgba(99,102,241,.3); transform: translateY(-3px); }
.testi-stars { margin-bottom: 12px; font-size: 1rem; }
.testi-card > p { color: var(--text2); font-size: .95rem; font-style: italic; line-height: 1.7; margin-bottom: 18px; }
.testi-author strong { display: block; font-size: .95rem; margin-bottom: 2px; }
.testi-author span { color: var(--text3); font-size: .82rem; }

/* ===== Final CTA ===== */
.final-cta { padding: 90px 0; }
.final-cta-inner { position: relative; border-radius: var(--radius-lg); overflow: hidden; }
.final-glow { position: absolute; inset: -2px; background: var(--g1); border-radius: var(--radius-lg); animation: hue-rotate 4s linear infinite; z-index: 0; }
@keyframes hue-rotate { 0%{filter:hue-rotate(0)} 100%{filter:hue-rotate(360deg)} }
.final-content {
    position: relative; z-index: 1;
    background: linear-gradient(135deg, rgba(10,14,26,.97), rgba(19,26,46,.97));
    border-radius: var(--radius-lg); padding: 50px 40px; text-align: center;
}
.final-badge { display: inline-block; padding: 6px 18px; background: var(--g2); color: #fff; border-radius: 50px; font-size: .85rem; font-weight: 700; margin-bottom: 16px; animation: pulse-g 2s ease-in-out infinite; }
.final-content h2 { font-size: 1.8rem; font-weight: 800; margin-bottom: 12px; }
.final-content > p { color: var(--text2); font-size: .95rem; max-width: 600px; margin: 0 auto 28px; }
.final-buttons { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 18px; }
.final-buttons .contact-btn { min-width: 220px; }
.final-limit { color: var(--gold); font-size: .88rem; font-weight: 600; animation: blink 2s ease-in-out infinite; }

/* ===== Footer ===== */
.footer { padding: 36px 0; border-top: 1px solid var(--border); }
.footer-inner { text-align: center; }
.footer-brand { display: flex; align-items: center; justify-content: center; gap: 8px; font-size: 1.2rem; font-weight: 800; margin-bottom: 10px; }
.footer-note { color: var(--text3); font-size: .82rem; max-width: 600px; margin: 0 auto 6px; }
.footer-copy { color: var(--text3); font-size: .78rem; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .services-grid, .why-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .nav-links { display: none; }
    .mobile-menu { display: block; }
    .mobile-nav { display: flex; }
    .hero { padding: 120px 0 60px; min-height: auto; }
    .hero h1 { font-size: 1.9rem; }
    .hero-sub { font-size: 1rem; }
    .hero-stats { gap: 18px; }
    .stat-num { font-size: 1.4rem; }
    .pain-grid, .clinics-grid, .services-grid, .why-grid, .process-grid, .testi-grid { grid-template-columns: 1fr; }
    .cta-card { flex-direction: column; padding: 32px 22px; gap: 24px; text-align: center; }
    .cta-left h2 { font-size: 1.35rem; }
    .cta-right { min-width: auto; width: 100%; }
    .final-content { padding: 32px 20px; }
    .final-buttons { flex-direction: column; align-items: center; }
    .final-buttons .contact-btn { width: 100%; justify-content: center; }
}
@media (max-width: 480px) {
    .container { padding: 0 16px; }
    .hero h1 { font-size: 1.6rem; }
    .hero-badge { font-size: .78rem; }
    .btn-lg { padding: 14px 22px; font-size: .95rem; }
    .hero-actions { flex-direction: column; width: 100%; }
    .hero-actions .btn { width: 100%; }
    .hero-stats { flex-direction: column; gap: 14px; }
    .stat-line { width: 40px; height: 1px; }
    .section-header h2 { font-size: 1.3rem; }
    .clinic-card, .service-card { padding: 24px 18px; }
    .contact-btn { padding: 13px 16px; font-size: .92rem; }
}
@media (max-width: 375px) {
    .container { padding: 0 12px; }
    .hero { padding: 105px 0 40px; }
    .hero h1 { font-size: 1.4rem; }
    .hero-sub { font-size: .9rem; }
    .logo { font-size: 1.1rem; }
    .section-header h2 { font-size: 1.2rem; }
}