:root{--bg:#e9edf2;--bg-glow-a:rgba(196,214,228,0.5);--bg-glow-b:rgba(222,208,186,0.4);--glass:rgba(255,255,255,0.58);--glass-strong:rgba(255,255,255,0.74);--glass-border:rgba(255,255,255,0.65);--glass-inner:rgba(255,255,255,0.4);--text:#24303c;--text-2:#5c6b7a;--text-3:#8b98a6;--accent:#4e7ba3;--accent-soft:rgba(78,123,163,0.14);--accent-ink:#fff;--gold:#b8964e;--danger:#b4554d;--danger-soft:rgba(180,85,77,0.14);--shadow-1:0 1px 2px rgba(36,48,60,0.06),0 8px 24px rgba(36,48,60,0.08);--shadow-2:0 2px 8px rgba(36,48,60,0.1),0 22px 56px rgba(36,48,60,0.18);--shadow-inset:inset 0 1px 0 var(--glass-inner);--ease-ios:cubic-bezier(0.25,1,0.5,1);--ease-spring:cubic-bezier(0.34,1.4,0.64,1)}@media (prefers-color-scheme:dark){:root{--bg:#161b22;--bg-glow-a:rgba(58,84,108,0.3);--bg-glow-b:rgba(96,78,48,0.2);--glass:rgba(38,46,58,0.55);--glass-strong:rgba(44,53,66,0.78);--glass-border:rgba(255,255,255,0.1);--glass-inner:rgba(255,255,255,0.09);--text:#e6ebf2;--text-2:#9aa7b6;--text-3:#66748a;--accent:#7fa6c9;--accent-soft:rgba(127,166,201,0.16);--accent-ink:#10151c;--gold:#d0ae6a;--danger:#d07a72;--danger-soft:rgba(208,122,114,0.15);--shadow-1:0 1px 2px rgba(0,0,0,0.3),0 8px 24px rgba(0,0,0,0.32);--shadow-2:0 2px 8px rgba(0,0,0,0.4),0 22px 56px rgba(0,0,0,0.5)}}*{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%}body{font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Segoe UI,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text);font-size:15px;line-height:1.65;min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:background-color .45s var(--ease-ios),color .45s var(--ease-ios)}.aurora{position:fixed;inset:0;z-index:-1;overflow:hidden;pointer-events:none}.aurora:after,.aurora:before{content:"";position:absolute;border-radius:50%;filter:blur(90px);opacity:.55}.aurora:before{width:55vw;height:55vw;top:-18vw;left:-12vw;background:radial-gradient(circle,var(--bg-glow-a),transparent 65%)}.aurora:after{width:48vw;height:48vw;bottom:-16vw;right:-10vw;background:radial-gradient(circle,var(--bg-glow-b),transparent 65%)}a{color:var(--accent);text-decoration:none}::selection{background:var(--accent-soft)}.landing{max-width:1080px;margin:0 auto;padding:56px 24px 40px}.landing-head{justify-content:space-between;gap:14px;margin-bottom:64px;flex-wrap:wrap}.landing-brand,.landing-head{display:flex;align-items:center}.landing-brand{gap:12px}.landing-logo{width:46px;height:46px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:22px;background:linear-gradient(145deg,var(--accent),color-mix(in srgb,var(--accent) 72%,var(--gold)));color:var(--accent-ink);box-shadow:0 8px 22px var(--accent-soft),inset 0 1px 0 rgba(255,255,255,.28)}.landing-name{font-size:17px;font-weight:600}.landing-sub{font-size:12px;color:var(--text-3)}.btn-glass{display:inline-flex;align-items:center;gap:7px;padding:10px 20px;border-radius:13px;border:1px solid var(--glass-border);background:var(--glass-strong);color:var(--text);font-size:14px;font-weight:500;cursor:pointer;backdrop-filter:blur(20px) saturate(1.5);-webkit-backdrop-filter:blur(20px) saturate(1.5);box-shadow:var(--shadow-1),var(--shadow-inset);transition:transform .35s var(--ease-spring),box-shadow .3s var(--ease-ios)}.btn-glass:hover{transform:translateY(-2px);box-shadow:var(--shadow-2),var(--shadow-inset)}.btn-primary{background:var(--accent);color:var(--accent-ink);border-color:transparent;box-shadow:0 8px 22px var(--accent-soft),inset 0 1px 0 rgba(255,255,255,.28)}.landing-hero{text-align:center;margin-bottom:64px}.landing-hero h1{font-size:clamp(30px,6vw,46px);font-weight:700;letter-spacing:-.5px;line-height:1.25}.landing-hero h1 em{font-style:normal;color:var(--accent)}.landing-hero p{color:var(--text-2);max-width:620px;margin:18px auto 0;font-size:15px}.landing-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;margin-bottom:40px}.feature-card{padding:22px;border-radius:20px;backdrop-filter:blur(20px) saturate(1.5);-webkit-backdrop-filter:blur(20px) saturate(1.5);background:var(--glass);border:1px solid var(--glass-border);box-shadow:var(--shadow-1),var(--shadow-inset);transition:transform .4s var(--ease-spring),box-shadow .4s var(--ease-ios)}.feature-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2),var(--shadow-inset)}.feature-card .f-ico{font-size:26px;margin-bottom:10px}.feature-card h2{font-size:15.5px;font-weight:600;margin-bottom:6px}.feature-card p{font-size:13px;color:var(--text-2)}.landing-guide{padding:28px;border-radius:20px;backdrop-filter:blur(20px) saturate(1.5);-webkit-backdrop-filter:blur(20px) saturate(1.5);background:var(--glass);border:1px solid var(--glass-border);box-shadow:var(--shadow-1),var(--shadow-inset)}.landing-guide h2{font-size:16px;font-weight:600;margin-bottom:14px}.landing-guide ol{padding-left:22px;font-size:14px;color:var(--text-2);display:flex;flex-direction:column;gap:8px}.landing-foot{text-align:center;font-size:12px;color:var(--text-3);margin-top:44px}.entry-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:22px}.entry-card{width:100%;max-width:400px;border-radius:26px;overflow:hidden;backdrop-filter:blur(26px) saturate(1.6);-webkit-backdrop-filter:blur(26px) saturate(1.6);background:var(--glass-strong);border:1px solid var(--glass-border);box-shadow:var(--shadow-2),var(--shadow-inset);animation:rise .6s var(--ease-ios)}@keyframes rise{0%{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}.entry-head{padding:30px 28px 22px;text-align:center;border-bottom:1px solid var(--glass-border)}.entry-avatar{width:62px;height:62px;margin:0 auto 13px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:26px;font-weight:600;background:linear-gradient(145deg,var(--accent),color-mix(in srgb,var(--accent) 70%,var(--gold)));color:var(--accent-ink);box-shadow:0 10px 26px var(--accent-soft),inset 0 1px 0 rgba(255,255,255,.3)}.entry-head h1{font-size:17px;font-weight:600}.entry-head p{font-size:12.5px;color:var(--text-3);margin-top:3px}.entry-body{padding:24px 28px 26px}.entry-error{text-align:center;padding:20px 16px;border-radius:18px;background:var(--danger-soft);color:var(--danger);font-size:13.5px}.entry-actions .btn-glass{width:100%;justify-content:center;padding:13px 18px;font-size:15px}.entry-foot{text-align:center;font-size:11px;color:var(--text-3);padding:0 28px 20px}.choice-list{display:flex;flex-direction:column;gap:9px;margin-bottom:18px}.choice-item{display:flex;align-items:flex-start;gap:12px;padding:14px;border-radius:15px;border:1px solid var(--glass-border);cursor:pointer;transition:border-color .3s var(--ease-ios),background .3s var(--ease-ios)}.choice-item.on{border-color:var(--accent);background:var(--accent-soft)}.choice-item input{margin-top:3px;accent-color:var(--accent)}.choice-item .c-title{font-size:14px;font-weight:500}.choice-item .c-desc{font-size:12px;color:var(--text-3);margin-top:2px}.entry-note{font-size:12.5px;color:var(--text-2);margin-bottom:16px}@media (max-width:480px){.landing{padding:34px 16px 30px}.landing-head{margin-bottom:42px}.entry-card{max-width:100%}}