:root{--bg:#F4F1F8;--deep:#E4DEEC;--paper:#FBF8FF;--soft:#EEE8F4;--ink:#161418;--text:#2A242C;--sub:#5A5460;--muted:#7A7480;--blue:#4A8AB8;--pink:#C46A8A;--green:#6A9A48;--gold:#C4A04A;--violet:#6A4A9A;--border:rgba(22,20,24,.12);--shadow:0 12px 28px rgba(22,20,24,.08);--glow:0 6px 16px rgba(106,74,154,.18)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:15px;line-height:1.75;padding-top:72px;overflow-x:hidden}body.no-scroll{overflow:hidden}a{color:var(--violet)}img{max-width:100%;height:auto}.wrap{width:min(960px,calc(100% - 32px));margin-inline:auto}.topline{position:fixed;z-index:90;left:0;right:0;top:0;height:18px;background:var(--ink);color:var(--gold);font-size:12px}.top-inner{height:18px;display:flex;align-items:center;justify-content:space-between}.plain-btn{border:0;background:transparent;color:var(--gold);padding:0;cursor:pointer;font:inherit}.main-head{position:fixed;z-index:89;left:0;right:0;top:18px;height:54px;background:rgba(251,248,255,.96);border-bottom:1px solid rgba(106,74,154,.18);backdrop-filter:blur(12px)}.head-inner{height:54px;display:flex;align-items:center;gap:22px}.brand{display:flex;align-items:center;min-width:86px;text-decoration:none;color:var(--ink);font-weight:900;font-size:18px}.brand img,.footer-lockup img{height:24px;width:auto;object-fit:contain}.desktop-main{display:flex;align-items:center;gap:6px;margin-left:auto}.desktop-main a{min-height:36px;display:flex;align-items:center;padding:0 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7px;color:var(--violet);font-size:12px;font-weight:900;letter-spacing:.08em;text-transform:uppercase}.page-hero h1,.feature-hero h1{font-size:24px;line-height:1.3;margin:0 0 10px;color:var(--ink)}h2{font-size:20px;line-height:1.4;color:var(--ink);margin:0 0 10px}h3{font-size:16px;line-height:1.45;color:var(--ink);margin:0 0 8px}p{margin:0 0 12px}.lead{font-size:16px;color:var(--sub);max-width:760px}.section{padding:26px 0;border-bottom:1px solid var(--border)}.section:last-child{border-bottom:0}.btn-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.btn-primary,.btn-secondary{min-height:44px;display:inline-flex;align-items:center;justify-content:center;padding:0 16px;border-radius:10px;text-decoration:none;font-size:14px;font-weight:900;transition:.18s}.btn-primary{background:linear-gradient(135deg,#4A8AB8 0%,#C46A8A 48%,#6A4A9A 100%);color:var(--paper);box-shadow:var(--glow)}.btn-secondary{background:var(--paper);border:1px solid var(--violet);color:var(--ink)}.btn-primary:hover,.btn-secondary:hover,.menu-btn:hover{filter:brightness(1.05);box-shadow:0 0 0 3px rgba(196,106,138,.28),0 10px 24px rgba(74,138,184,.28)}.btn-primary:active,.btn-secondary:active,.menu-btn:active{filter:brightness(1.08);box-shadow:0 0 0 4px rgba(196,160,74,.40),0 0 22px rgba(106,74,154,.45)}a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--violet);outline-offset:2px}.image-slot{display:flex;align-items:center;justify-content:center;background:var(--paper);border:1px solid var(--border);border-radius:12px;overflow:hidden}.image-slot img{width:100%;height:100%;object-fit:contain;object-position:center}.slot-160{height:160px}.slot-168{height:168px}.slot-176{height:176px}.slot-app{width:240px;height:320px}.slot-icon{width:70px;height:70px}.feature-hero{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(260px,.7fr);gap:24px;align-items:center;padding:26px 0}.feature-hero 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var(--blue)}.stack{display:grid;gap:14px}.note-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.note-card{position:relative;padding:20px;background:var(--paper);border:1px solid var(--border);border-radius:14px}.note-card:before{content:"";position:absolute;left:20px;top:-7px;width:14px;height:14px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 4px var(--paper),0 0 0 5px var(--border)}.topic-rail{display:grid;grid-template-columns:150px 1fr;gap:20px;padding:16px 0;border-top:1px solid var(--border)}.topic-rail:first-child{border-top:0}.topic-rail strong{color:var(--violet)}.progress-list{display:grid;gap:12px}.progress-row{display:grid;grid-template-columns:110px 1fr;gap:16px;padding:15px;background:var(--paper);border:1px solid var(--border);border-radius:12px}.badge{display:inline-flex;min-height:32px;align-items:center;justify-content:center;padding:0 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var(--border);border-radius:18px;box-shadow:var(--shadow)}.center-card .chips{justify-content:center}.app-layout{display:grid;grid-template-columns:1fr 260px;gap:26px;align-items:end}.app-copy{padding:24px;background:var(--paper);border:1px solid var(--border);border-radius:16px}.app-visuals{display:flex;flex-direction:column;gap:12px;align-items:center}.terms{display:grid;gap:14px}.term{padding:18px;background:var(--paper);border:1px solid var(--border);border-radius:14px}.faq-list{display:grid;gap:10px}.faq-list details{background:var(--paper);border:1px solid var(--border);border-radius:12px;padding:14px 16px}.faq-list summary{cursor:pointer;color:var(--ink);font-weight:900}.faq-list details p{margin:10px 0 0}.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.contact-card{padding:20px;background:var(--paper);border:1px solid var(--border);border-radius:14px}.about-grid{display:grid;grid-template-columns:1fr 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a{display:block;text-decoration:none;color:var(--text);padding:5px 0;min-height:44px}.drawer-grid b{display:block;font-size:13px;color:var(--ink)}.drawer-grid span{display:block;font-size:12px;color:var(--muted)}.search-panel-wrap{position:fixed;z-index:121;top:72px;left:0;right:0;visibility:hidden;pointer-events:none;transform:translateY(-12px);opacity:0;transition:.18s}.search-panel-wrap.open{visibility:visible;pointer-events:auto;transform:translateY(0);opacity:1}.search-card{width:min(760px,calc(100% - 32px));margin:0 auto;background:var(--paper);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:0 0 14px 14px;padding:18px}.search-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}.search-card label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}.search-card input{width:100%;min-height:44px;border:1px solid var(--border);background:#fff;color:var(--ink);border-radius:10px;padding:0 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@media(max-width:760px){body{padding-top:72px;padding-bottom:calc(48px + env(safe-area-inset-bottom))}.wrap{width:min(100% - 32px,960px)}.desktop-main{display:none}.head-inner{gap:10px}.head-actions{margin-left:auto}.feature-hero,.editor-grid,.note-grid,.three-flow,.app-layout,.about-grid,.contact-grid{grid-template-columns:1fr}.topic-rail,.progress-row,.scene-step{grid-template-columns:1fr}.feature-hero .hero-panel{padding:22px}.app-visuals{align-items:flex-start}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.drawer{max-height:64%}.drawer-grid{grid-template-columns:1fr 1fr}.search-panel-wrap{top:0;bottom:0;background:var(--ink);padding-top:calc(20px + env(safe-area-inset-top));overflow:auto}.search-card{width:100%;min-height:100%;margin:0;background:var(--ink);color:var(--gold);border:0;border-radius:0;box-shadow:none;padding:18px 16px 80px}.search-head strong,.search-card label,.search-note{color:var(--gold)}.search-card input{background:var(--paper)}.search-links a{background:#2b252d;color:var(--paper);border:1px solid rgba(196,160,74,.35)}.search-card .close-btn{background:transparent;border-color:var(--gold);color:var(--gold)}.search-mask{display:none}.mobile-bar{position:fixed;z-index:100;left:0;right:0;bottom:0;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);display:grid;grid-template-columns:repeat(4,1fr);background:var(--paper);border-top:1px solid var(--border);box-shadow:0 -8px 22px rgba(22,20,24,.08)}.mobile-bar a{min-height:48px;display:flex;align-items:center;justify-content:center;text-decoration:none;color:var(--ink);font-size:13px}.mobile-bar a.on{background:var(--violet);color:var(--paper);box-shadow:var(--glow)}.site-footer{padding-bottom:76px}.slot-app{max-width:100%}}
@media(max-width:440px){.footer-grid,.drawer-grid{grid-template-columns:1fr}.mini-app,.menu-btn{font-size:13px;padding-inline:10px}.footer-brand{grid-column:auto}}