:root {
    --rose: #c97b7b;
    --rose-light: #e8b4b4;
    --rose-dark: #a85e5e;
    --gold: #d4a574;
    --gold-light: #f0d6b0;
    --cream: #fef9f4;
    --warm: #fdf6ee;
    --charcoal: #2c2c2c;
    --text: #444;
    --text-light: #888;
    --white: #fff;
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --radius: 12px;
    --max-w: 1000px;
}

*{margin:0;padding:0;box-sizing:border-box}
html,body{height:auto;overflow-x:hidden;overflow-y:auto}
body{font-family:-apple-system,"Microsoft YaHei","PingFang SC",sans-serif;background:var(--cream);color:var(--text);line-height:1.6}
a{color:var(--rose);text-decoration:none}
img{max-width:100%;display:block}

/* Header */
header{background:var(--white);box-shadow:0 2px 12px rgba(0,0,0,0.06);position:sticky;top:0;z-index:100;width:100%}
header .inner{max-width:var(--max-w);margin:0 auto;padding:0 20px;display:flex;align-items:center;height:64px;gap:24px}
.logo{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:700;color:var(--rose);white-space:nowrap}
.logo svg{flex-shrink:0}
nav{display:flex;gap:20px;margin-left:auto}
nav a{font-size:14px;color:var(--text);padding:6px 12px;border-radius:6px;transition:.2s;white-space:nowrap}
nav a:hover{color:var(--rose);background:var(--warm)}
nav a.reg{background:var(--rose);color:var(--white);padding:8px 20px;border-radius:20px}
nav a.reg:hover{background:var(--rose-dark);color:var(--white)}

/* Hero */
.hero{background:linear-gradient(135deg, var(--rose) 0%, var(--rose-dark) 50%, #8c5a5a 100%);color:var(--white);padding:80px 20px 60px;text-align:center}
.hero h1{font-size:36px;margin-bottom:12px;font-weight:700}
.hero p{font-size:16px;opacity:.9;max-width:600px;margin:0 auto 30px}
.hero .btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.hero .btn{display:inline-block;padding:12px 32px;border-radius:24px;font-size:15px;font-weight:600;transition:.2s;white-space:nowrap}
.hero .btn-primary{background:var(--white);color:var(--rose)}
.hero .btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(0,0,0,0.15)}
.hero .btn-outline{border:2px solid var(--white);color:var(--white)}
.hero .btn-outline:hover{background:rgba(255,255,255,0.15)}
.hero-stats{display:flex;justify-content:center;gap:40px;margin-top:40px;flex-wrap:wrap}
.hero-stats .num{font-size:28px;font-weight:700}
.hero-stats .label{font-size:13px;opacity:.8;margin-top:2px}

/* Sections */
section{padding:60px 20px}
section .inner{max-width:var(--max-w);margin:0 auto}
.section-title{text-align:center;font-size:24px;font-weight:700;color:var(--charcoal);margin-bottom:8px}
.section-sub{text-align:center;font-size:14px;color:var(--text-light);margin-bottom:40px}

/* Features */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.feature-card{background:var(--white);border-radius:var(--radius);padding:32px 24px;text-align:center;box-shadow:var(--shadow);transition:.3s}
.feature-card:hover{transform:translateY(-4px)}
.feature-card .icon{width:56px;height:56px;margin:0 auto 16px;background:var(--warm);border-radius:50%;display:flex;align-items:center;justify-content:center}
.feature-card .icon svg{width:28px;height:28px}
.feature-card h3{font-size:16px;margin-bottom:8px;color:var(--charcoal)}
.feature-card p{font-size:13px;color:var(--text-light)}

/* Steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;counter-reset:step}
.step{background:var(--white);border-radius:var(--radius);padding:28px 20px;text-align:center;box-shadow:var(--shadow);position:relative}
.step::before{counter-increment:step;content:counter(step);position:absolute;top:-10px;left:50%;transform:translateX(-50%);width:28px;height:28px;background:var(--rose);color:var(--white);border-radius:50%;font-size:14px;font-weight:700;display:flex;align-items:center;justify-content:center}
.step h3{font-size:15px;margin:12px 0 6px;color:var(--charcoal)}
.step p{font-size:13px;color:var(--text-light)}

/* Members */
.members{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.member-card{background:var(--white);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.3s}
.member-card:hover{transform:translateY(-4px)}
.member-card .avatar{height:200px;background:var(--rose-light);display:flex;align-items:center;justify-content:center;color:var(--white)}
.member-card .avatar svg{width:60px;height:60px;opacity:.6}
.member-card .avatar img{width:100%;height:100%;object-fit:cover;display:block}
.member-card .info{padding:16px}
.member-card .info h4{font-size:15px;margin-bottom:4px}
.member-card .info .meta{font-size:12px;color:var(--text-light);margin-bottom:8px}
.member-card .info .tags{display:flex;gap:6px;flex-wrap:wrap}
.member-card .info .tags span{background:var(--warm);color:var(--rose);padding:2px 8px;border-radius:10px;font-size:11px}

/* Testimonials */
.testimonials{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.testimonial{background:var(--white);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);position:relative}
.testimonial::before{content:'"';font-size:40px;color:var(--rose-light);position:absolute;top:8px;left:16px;font-family:serif}
.testimonial p{font-size:14px;line-height:1.7;margin-bottom:12px;padding-left:20px}
.testimonial .author{font-size:13px;color:var(--rose);font-weight:600;padding-left:20px}

/* Safety */
.safety-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.safety-item{background:var(--white);border-radius:var(--radius);padding:24px;text-align:center;box-shadow:var(--shadow)}
.safety-item h3{font-size:15px;margin-bottom:6px;color:var(--charcoal)}
.safety-item p{font-size:13px;color:var(--text-light)}

/* CTA */
.cta{background:linear-gradient(135deg, var(--gold-light), var(--cream));text-align:center;padding:60px 20px}
.cta h2{font-size:24px;color:var(--charcoal);margin-bottom:8px}
.cta p{font-size:14px;color:var(--text-light);margin-bottom:24px}
.cta .btn{display:inline-block;padding:14px 40px;background:var(--rose);color:var(--white);border-radius:24px;font-size:16px;font-weight:600;transition:.2s;white-space:nowrap}
.cta .btn:hover{background:var(--rose-dark);transform:translateY(-2px)}

/* Footer */
footer{background:var(--charcoal);color:rgba(255,255,255,0.7);padding:40px 20px 20px}
footer .inner{max-width:var(--max-w);margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px}
footer h4{color:var(--white);font-size:14px;margin-bottom:12px}
footer p,footer a{font-size:13px;line-height:2;color:rgba(255,255,255,0.6)}
footer a:hover{color:var(--gold-light)}
footer .bottom{border-top:1px solid rgba(255,255,255,0.1);margin-top:30px;padding-top:16px;text-align:center;font-size:12px}

/* Register Form */
.form-section{padding:60px 20px;background:var(--cream)}
.form-section .inner{max-width:600px;margin:0 auto;background:var(--white);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow)}
.form-section h2{text-align:center;margin-bottom:24px;color:var(--charcoal)}
.form-group{margin-bottom:16px}
.form-group label{display:block;font-size:13px;font-weight:600;margin-bottom:4px;color:var(--text)}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:10px 12px;border:1px solid #e0e0e0;border-radius:8px;font-size:14px;transition:.2s}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--rose);box-shadow:0 0 0 3px rgba(201,123,123,0.1)}
.form-group textarea{min-height:80px;resize:vertical}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.form-submit{width:100%;padding:12px;background:var(--rose);color:var(--white);border:none;border-radius:8px;font-size:15px;font-weight:600;cursor:pointer;transition:.2s}
.form-submit:hover{background:var(--rose-dark)}
.form-tip{text-align:center;font-size:12px;color:var(--text-light);margin-top:12px}

/* Back to top */
.btt{position:fixed;bottom:30px;right:30px;width:44px;height:44px;background:var(--rose);color:var(--white);border:none;border-radius:50%;font-size:20px;cursor:pointer;box-shadow:0 2px 12px rgba(0,0,0,0.15);display:none;z-index:99;transition:.2s}
.btt:hover{transform:translateY(-3px)}

/* Mobile */
@media(max-width:768px){
    .hero .btns{flex-direction:column;align-items:center;width:100%}
    .hero .btns .btn{width:100%;max-width:65vw;padding:10px 18px;font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
    .cta .btn{width:100%;max-width:65vw;font-size:14px;padding:12px 18px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
    a[style*="inline-block"]{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:65vw!important}
    nav a{font-size:11px;padding:4px 6px;overflow:hidden;text-overflow:ellipsis;max-width:25vw}
    nav a.reg{padding:5px 10px;font-size:11px}
    header .inner{height:auto;min-height:56px;padding:0 12px;gap:8px;flex-wrap:wrap}
    .logo{font-size:18px}
    .logo svg{width:80px;height:28px}
    nav{gap:4px;margin-left:auto;overflow-x:auto;white-space:nowrap;-webkit-overflow-scrolling:touch;scrollbar-width:none;padding:8px 0}
    nav::-webkit-scrollbar{display:none}
    .features,.members,.testimonials,.safety-grid{grid-template-columns:1fr}
    .steps{grid-template-columns:repeat(2,1fr)}
    footer .inner{grid-template-columns:1fr 1fr;gap:20px}
    footer .inner div:first-child{grid-column:1/-1}
    .hero{padding:50px 16px 40px}
    .hero h1{font-size:22px}
    .hero p{font-size:14px}
    .hero-stats{gap:16px}
    .hero-stats .num{font-size:22px}
    .member-card .avatar{height:180px}
    .form-row{grid-template-columns:1fr}
    .form-section .inner{padding:20px}
    section{padding:36px 14px}
    .section-title{font-size:20px}
    .section-sub{margin-bottom:28px}
    .cta{padding:40px 16px}
    .cta h2{font-size:20px}
}