:root{
  --bg:#f7fbff;--card:rgba(255,255,255,.88);--text:#0f172a;--muted:#64748b;--line:#e2e8f0;
  --cyan:#06b6d4;--sky:#38bdf8;--teal:#2dd4bf;--dark:#020617;--shadow:0 24px 70px rgba(15,23,42,.12);
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--text);background:radial-gradient(circle at 20% 0%,rgba(45,212,191,.24),transparent 28%),radial-gradient(circle at 85% 10%,rgba(56,189,248,.22),transparent 30%),linear-gradient(180deg,#f8fdff 0%,#f5f7fb 55%,#fff 100%)}
button,input,textarea,select{font-family:inherit}button{cursor:pointer}.container{max-width:1180px;margin:0 auto;padding:0 20px}.is-hidden{display:none!important}
.page-main{min-height:calc(100vh - 160px)}.section{padding:56px 0}.card{border:1px solid rgba(255,255,255,.84);background:var(--card);border-radius:32px;padding:28px;box-shadow:var(--shadow);backdrop-filter:blur(14px)}.dark-card{position:relative;overflow:hidden;background:#020617;color:white}.dark-card:before{content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:999px;background:rgba(34,211,238,.22);filter:blur(45px)}.dark-card:after{content:"";position:absolute;left:-80px;bottom:-80px;width:300px;height:300px;border-radius:999px;background:rgba(45,212,191,.18);filter:blur(45px)}.dark-inner{position:relative;z-index:1}
.badge,.eyebrow{display:inline-flex;align-items:center;gap:8px;border:1px solid #cffafe;background:rgba(255,255,255,.82);border-radius:999px;padding:10px 16px;font-size:13px;font-weight:900;color:#0891b2;box-shadow:0 10px 30px rgba(6,182,212,.08)}.eyebrow{letter-spacing:.16em;background:#ecfeff}.pulse{width:8px;height:8px;border-radius:99px;background:#2dd4bf;box-shadow:0 0 0 0 rgba(45,212,191,.75);animation:pulse 1.8s infinite}@keyframes pulse{to{box-shadow:0 0 0 13px rgba(45,212,191,0)}}
.btn{border:0;border-radius:999px;font-weight:950;padding:15px 26px;font-size:15px;transition:.2s;text-decoration:none;display:inline-flex;align-items:center;justify-content:center}.btn:hover{transform:translateY(-2px)}.btn-primary{background:linear-gradient(90deg,#0ea5e9,#2dd4bf);color:white;box-shadow:0 18px 40px rgba(34,211,238,.28)}.btn-secondary{background:white;color:#0f172a;border:1px solid #e2e8f0}.btn-dark{background:#020617;color:white}.btn-wide{width:100%}.button-row{display:flex;gap:14px;flex-wrap:wrap}.section-title{text-align:center;max-width:780px;margin:0 auto 34px}.section-title.left{text-align:left;margin-left:0}.section-title h1,.section-title h2{font-size:46px;line-height:1.12;letter-spacing:-.05em;margin:15px 0 0;font-weight:950}.section-title p{color:#64748b;line-height:1.8;font-size:16px}.lead{color:#475569;font-size:18px;line-height:1.85}.small{font-size:12px;color:#94a3b8;line-height:1.7}.notice{background:linear-gradient(135deg,#ecfeff,#f0fdfa);border:1px solid #cffafe;border-radius:24px;padding:18px;color:#475569;line-height:1.7}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.logic-list{display:grid;gap:12px;margin-top:22px}.logic{background:#f8fafc;border-radius:18px;padding:16px}.logic b{display:block}.logic p{margin:6px 0 0;color:#64748b;line-height:1.7;font-size:14px}.member-level{display:inline-flex;align-items:center;gap:8px;border-radius:999px;padding:8px 13px;font-size:12px;font-weight:950}.level-normal{background:#f1f5f9;color:#334155}.level-formal{background:#ecfeff;color:#0891b2}.level-premium{background:linear-gradient(90deg,#fef3c7,#ccfbf1);color:#0f172a}.member-badge{border-radius:999px;background:#ecfeff;color:#0891b2;font-size:12px;font-weight:950;padding:9px 14px}
@media(max-width:980px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.section-title h1,.section-title h2{font-size:36px}.section{padding:40px 0}}
@media(max-width:620px){.button-row{flex-direction:column}.btn{width:100%}}