:root{--bg:#07070c;--bg-2:#0c0c14;--panel:#12121a;--line:#23233a;--text:#eaeaf2;--dim:#8f8fac;--accent:#7c5cff;--accent-2:#4dd4ac;--ok:#2fbf71}*{box-sizing:border-box}body,html{margin:0;padding:0}body{background:var(--bg);color:var(--text);font:16px/1.65 -apple-system,Segoe UI,PingFang HK,Microsoft JhengHei,sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}.wrap{max-width:1080px;margin:0 auto;padding:0 22px}.nav{position:-webkit-sticky;position:sticky;top:0;z-index:20;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#07070ccc;border-bottom:1px solid var(--line)}.nav-in{gap:22px;height:62px}.brand,.nav-in{display:flex;align-items:center}.brand{gap:9px;font-weight:700;letter-spacing:.2px}.brand img{width:26px;height:26px;border-radius:7px}.nav-links{display:flex;gap:20px;margin-left:auto;align-items:center;color:var(--dim);font-size:14px}.nav-links a:hover{color:var(--text)}@media (max-width:720px){.nav-links a.hide-sm{display:none}}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--panel);border:1px solid var(--line);color:var(--text);border-radius:10px;padding:10px 16px;font-size:14px;font-weight:600;transition:.15s}.btn:hover{border-color:#3a3a5e;transform:translateY(-1px)}.btn.primary{background:linear-gradient(135deg,var(--accent),#6a45ff);border:none;color:#fff}.btn.primary:hover{filter:brightness(1.1)}.btn.ghost{background:transparent}.btn.lg{padding:13px 22px;font-size:15px}.btn:disabled{opacity:.55;cursor:not-allowed;transform:none}.hero{padding:86px 0 60px;text-align:center;position:relative;overflow:hidden}.hero h1{font-size:52px;line-height:1.12;margin:0 0 18px;letter-spacing:-1px}.hero h1 span{background:linear-gradient(120deg,var(--accent),var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent}.hero p{color:var(--dim);font-size:18px;max-width:640px;margin:0 auto 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#3f2a8a33;position:relative}.plan.hot:after{content:"最受歡迎";position:absolute;top:-12px;left:24px;font-size:12px;background:var(--accent);color:#fff;padding:3px 10px;border-radius:999px}.plan h3{margin:0 0 6px;font-size:18px}.plan .price{font-size:38px;font-weight:800;letter-spacing:-1px;margin:6px 0 2px}.plan .price small{font-weight:500}.plan .price small,.plan ul{font-size:14px;color:var(--dim)}.plan ul{list-style:none;padding:0;margin:18px 0 22px}.plan li{padding:5px 0 5px 24px;position:relative}.plan li:before{content:"✓";position:absolute;left:0;color:var(--accent-2);font-weight:700}.plan .btn{margin-top:auto;width:100%}details{border-bottom:1px solid var(--line);padding:16px 0}details summary{cursor:pointer;font-weight:600;list-style:none}details summary::-webkit-details-marker{display:none}details summary:after{content:"＋";float:right;color:var(--dim)}details[open] summary:after{content:"－"}details p{color:var(--dim);margin:10px 0 0;font-size:14px}.auth{min-height:100vh;display:grid;place-items:center;padding:40px 20px}.auth-card{width:100%;max-width:420px;background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:30px}.auth-card img{width:44px;height:44px;border-radius:11px}.auth-card h1{font-size:22px;margin:16px 0 6px}.auth-card .hint{color:var(--dim);font-size:14px;margin:0 0 22px}label{display:block;font-size:13px;color:var(--dim);margin:16px 0 6px}input,select{width:100%;background:#0b0b13;color:var(--text);border:1px solid var(--line);border-radius:10px;padding:11px 13px;font:inherit}input:focus,select:focus{outline:none;border-color:var(--accent)}.err{background:#2a1420;border:1px solid #5a2434;color:#ffb4c0;border-radius:10px}.err,.ok{padding:10px 13px;font-size:14px;margin-top:16px}.ok{background:#10251c;border:1px solid #1d5138;color:#a8f0c8;border-radius:10px}.seg{display:flex;gap:8px}.seg button{flex:1 1;background:#0b0b13;border:1px solid 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var(--line);color:var(--dim);font-size:13px;padding:34px 0;margin-top:40px}footer a:hover{color:var(--text)}