:root{--violet:#6758e8;--violet-dark:#4e41c8;--violet-soft:#efedff;--ink:#202239;--muted:#6f7489;--line:#e8e8f0;--green:#16866c;--bg:#fafaff}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:95px}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.8 -apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}a{color:var(--violet-dark);text-decoration:none}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.3}img{max-width:100%}.official-header{position:sticky;z-index:50;top:0;border-bottom:1px solid rgba(232,232,240,.8);background:rgba(250,250,255,.9);backdrop-filter:blur(18px)}.official-nav{display:flex;max-width:1180px;min-height:78px;margin:auto;padding:0 26px;align-items:center;justify-content:space-between;gap:25px}.official-brand{display:flex;align-items:center;gap:11px;color:var(--ink);font-size:17px;font-weight:750;line-height:1.3}.official-brand img{width:40px;height:40px}.official-brand small{display:block;color:#999bad;font-size:8px;font-weight:600;letter-spacing:1.25px}.official-nav nav{display:flex;align-items:center;gap:8px}.official-nav nav>a{padding:8px 13px;border-radius:10px;color:#585d72;font-size:14px;font-weight:550;white-space:nowrap;transition:.2s}.official-nav nav>a:hover{background:var(--violet-soft);color:var(--violet)}.official-nav nav>a.official-download{margin-left:6px;background:var(--violet);box-shadow:0 6px 16px rgba(103,88,232,.2);color:#fff}.official-nav nav>a.official-download:hover{background:var(--violet-dark)}.official-download span{margin-left:5px}.official-container{width:min(1120px,100%);margin:auto;padding:0 26px}.official-hero{position:relative;overflow:hidden;padding:86px 0 80px;background:radial-gradient(circle at 82% 20%,rgba(124,109,244,.15),transparent 28rem),radial-gradient(circle at 5% 90%,rgba(68,190,163,.08),transparent 24rem)}.hero-grid{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:66px}.official-kicker{display:inline-flex;margin-bottom:20px;padding:5px 11px;border:1px solid #dedafc;border-radius:30px;background:#f4f2ff;color:var(--violet);font-size:12px;font-weight:650;align-items:center;gap:7px}.official-kicker::before{width:6px;height:6px;border-radius:50%;background:#7d70ed;content:""}.official-hero h1{margin-bottom:20px;font-size:clamp(40px,5vw,59px);letter-spacing:-2px}.official-hero h1 span{color:var(--violet)}.official-hero .lead{max-width:520px;margin-bottom:29px;color:var(--muted);font-size:17px}.hero-buttons{display:flex;flex-wrap:wrap;gap:12px}.official-button{display:inline-flex;min-height:45px;padding:10px 20px;border:1px solid var(--violet);border-radius:11px;background:var(--violet);box-shadow:0 7px 18px rgba(103,88,232,.18);color:#fff;font-weight:650;align-items:center;justify-content:center;gap:8px;transition:.2s}.official-button:hover{background:var(--violet-dark);box-shadow:0 10px 23px rgba(103,88,232,.24);transform:translateY(-2px)}.official-button.ghost{border-color:#dedfea;background:#fff;box-shadow:none;color:#555b70}.official-button.ghost:hover{border-color:#c8c3f5;background:#f7f5ff;color:var(--violet)}.hero-facts{display:flex;margin-top:25px;color:#85899c;font-size:12px;flex-wrap:wrap;gap:10px 20px}.hero-facts span::before{margin-right:6px;color:var(--green);content:"✓";font-weight:800}.app-preview{position:relative;padding:13px;border:1px solid rgba(255,255,255,.8);border-radius:24px;background:rgba(255,255,255,.7);box-shadow:0 30px 70px rgba(49,42,110,.15);transform:rotate(1.5deg)}.app-preview::before{position:absolute;z-index:-1;inset:-30px;border-radius:50%;background:linear-gradient(140deg,#e2ddff,#e8f8f3);filter:blur(5px);content:""}.preview-window{overflow:hidden;border:1px solid #e5e3f0;border-radius:15px;background:#fcfcfe}.preview-bar{display:flex;height:45px;padding:0 15px;border-bottom:1px solid #eeeef4;align-items:center;justify-content:space-between}.preview-logo{display:flex;color:#444860;font-size:12px;font-weight:700;align-items:center;gap:7px}.preview-logo b{display:grid;width:23px;height:23px;border-radius:7px;background:#e9e7ff;color:var(--violet);place-items:center}.preview-close{color:#9295a6}.preview-body{padding:20px}.preview-body h3{margin-bottom:5px;font-size:20px}.preview-body>p{color:#9295a6;font-size:10px}.preview-actions{display:grid;margin:18px 0;grid-template-columns:1.5fr 1fr;gap:10px}.preview-actions span{padding:12px;border-radius:8px;background:#e9e7ff;color:#5c51cd;font-size:12px;text-align:center}.preview-actions span+span{background:#e9f6f1;color:#268069}.preview-history{padding:12px;border-radius:10px;background:#f4f4f8}.preview-history b{font-size:10px}.history-line{margin-top:8px;padding:8px;border-radius:6px;background:#fff;color:#6d7183;font-size:9px}.history-line::after{display:block;margin-top:4px;color:#b0b2bf;content:"今天  16:00";font-size:8px}.preview-notice{margin-top:12px;padding:8px 10px;border-radius:8px;background:#efefff;color:#7770ba;font-size:9px}.preview-floating{position:absolute;right:-20px;bottom:-20px;padding:12px 17px;border:1px solid #e1def7;border-radius:14px;background:#fff;box-shadow:0 12px 30px rgba(49,42,110,.17);color:var(--violet);font-size:12px;font-weight:700}.official-section{padding:76px 0}.official-section.white{background:#fff}.section-title{max-width:650px;margin-bottom:35px}.section-title.center{margin-right:auto;margin-left:auto;text-align:center}.section-title span{color:var(--violet);font-size:12px;font-weight:750;letter-spacing:1.5px}.section-title h2{margin:9px 0 12px;font-size:34px;letter-spacing:-.8px}.section-title p{margin:0;color:var(--muted)}.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.feature-card{padding:26px;border:1px solid var(--line);border-radius:17px;background:#fff;transition:.2s}.feature-card:hover{border-color:#d9d4fb;box-shadow:0 14px 35px rgba(45,39,93,.08);transform:translateY(-3px)}.feature-icon{display:grid;width:45px;height:45px;margin-bottom:18px;border-radius:13px;background:var(--violet-soft);color:var(--violet);font-size:20px;place-items:center}.feature-card:nth-child(3n+2) .feature-icon{background:#eaf7f2;color:var(--green)}.feature-card:nth-child(3n) .feature-icon{background:#fff3e8;color:#b77127}.feature-card h3{margin-bottom:9px;font-size:18px}.feature-card p{margin:0;color:var(--muted);font-size:14px}.step-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:25px}.step-card{position:relative;padding:25px 25px 25px 75px}.step-number{position:absolute;top:21px;left:20px;color:#d9d4f7;font-size:38px;font-weight:800;line-height:1}.step-card h3{font-size:18px}.step-card p{margin:0;color:var(--muted);font-size:14px}.accuracy-banner{display:grid;padding:34px 38px;border:1px solid #e3e0f7;border-radius:20px;background:linear-gradient(120deg,#f1efff,#f6faff);grid-template-columns:1fr auto;align-items:center;gap:30px}.accuracy-banner h2{margin-bottom:8px;font-size:25px}.accuracy-banner p{margin:0;color:var(--muted)}.official-cta{padding:55px 30px;border-radius:24px;background:linear-gradient(125deg,#292348,#5c4cc5);color:#fff;text-align:center}.official-cta h2{margin-bottom:12px;color:#fff;font-size:33px}.official-cta p{margin-bottom:25px;color:#d7d2f0}.official-cta .official-button{border-color:#fff;background:#fff;color:#5144bd}.page-hero{padding:58px 0 45px;border-bottom:1px solid var(--line);background:linear-gradient(180deg,#f2f0ff,#fafaff)}.page-hero h1{margin-bottom:12px;font-size:40px;letter-spacing:-1px}.page-hero p{max-width:750px;margin:0;color:var(--muted);font-size:16px}.guide-layout{display:grid;padding:45px 0 75px;grid-template-columns:220px minmax(0,1fr);gap:45px}.guide-toc{position:sticky;top:110px;align-self:start;padding:20px;border:1px solid var(--line);border-radius:15px;background:#fff}.guide-toc strong{display:block;margin-bottom:10px}.guide-toc a{display:block;padding:6px 0;color:var(--muted);font-size:13px}.guide-toc a:hover{color:var(--violet)}.guide-content section{padding:0 0 33px;margin-bottom:33px;border-bottom:1px solid var(--line)}.guide-content h2{font-size:25px}.guide-content h3{margin:22px 0 8px;font-size:17px}.guide-content p,.guide-content li{color:#5f6579}.guide-content ol,.guide-content ul{padding-left:22px}.guide-content li{margin:7px 0}.guide-callout{margin:17px 0;padding:15px 18px;border-left:3px solid var(--violet);border-radius:0 10px 10px 0;background:#f1efff;color:#5d5781}.guide-callout.warning{border-color:#d58a27;background:#fff7e9;color:#86602a}.key{display:inline-block;padding:1px 7px;border:1px solid #d9dbe5;border-bottom-width:2px;border-radius:5px;background:#fff;color:#484e61;font:12px monospace}.guide-table{width:100%;border-collapse:collapse;background:#fff}.guide-table th,.guide-table td{padding:12px 14px;border:1px solid var(--line);text-align:left}.guide-table th{background:#f4f3fa;font-size:13px}.guide-table td{color:var(--muted);font-size:13px}.download-grid{display:grid;padding:55px 0;grid-template-columns:1.2fr .8fr;gap:25px}.download-card,.info-card{padding:32px;border:1px solid var(--line);border-radius:20px;background:#fff}.download-card h2{font-size:27px}.download-meta{display:grid;margin:25px 0;grid-template-columns:1fr 1fr;gap:15px}.download-meta div{padding:13px;border-radius:10px;background:#f6f6fa}.download-meta span{display:block;color:var(--muted);font-size:12px}.download-meta strong{font-size:14px}.download-card .official-button{width:100%}.checksum{margin-top:20px;overflow-wrap:anywhere;color:#858a9b;font:11px/1.7 monospace}.info-card h3{font-size:18px}.info-card ul{padding-left:20px;color:var(--muted)}.info-card li{margin:8px 0}.accuracy-grid{display:grid;padding:50px 0;grid-template-columns:1fr 1fr;gap:24px}.accuracy-card{padding:28px;border:1px solid var(--line);border-radius:18px;background:#fff}.accuracy-card h2{font-size:22px}.accuracy-card p,.accuracy-card li{color:var(--muted)}.accuracy-card ul{padding-left:20px}.accuracy-card.good{border-top:3px solid #48aa8b}.accuracy-card.limit{border-top:3px solid #d79a43}.accuracy-full{padding:28px;border:1px solid var(--line);border-radius:18px;background:#fff}.about-grid{display:grid;padding:55px 0;grid-template-columns:1fr 1fr;gap:25px}.about-panel{padding:30px;border:1px solid var(--line);border-radius:18px;background:#fff}.about-panel h2{font-size:22px}.about-panel p,.about-panel li{color:var(--muted)}.about-panel ul{padding-left:20px}.privacy-note{padding:22px 25px;border-radius:15px;background:#eaf7f2;color:#387563}.official-footer{display:grid;max-width:1120px;margin:auto;padding:42px 26px 30px;grid-template-columns:1fr auto;gap:25px;border-top:1px solid var(--line)}.footer-brand{display:flex;color:var(--ink);font-weight:700;align-items:center;gap:8px}.footer-brand img{width:28px;height:28px}.official-footer p{margin:8px 0 0;color:var(--muted);font-size:12px}.footer-links{display:flex;align-items:start;gap:18px}.footer-links a{color:var(--muted);font-size:12px}.official-footer small{color:#9a9dad;grid-column:1/-1;font-size:11px}
@media(max-width:900px){.official-nav{flex-wrap:wrap;padding-top:12px;padding-bottom:10px;gap:8px}.official-nav nav{width:100%;overflow-x:auto;padding-bottom:3px}.hero-grid{grid-template-columns:1fr;gap:55px}.official-hero{padding-top:55px}.official-hero .lead{max-width:680px}.app-preview{max-width:560px;margin:auto}.feature-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.guide-layout{grid-template-columns:1fr}.guide-toc{position:static;display:flex;overflow-x:auto;gap:15px;white-space:nowrap}.guide-toc strong{display:none}.download-grid,.about-grid{grid-template-columns:1fr}.settings-layout{grid-template-columns:1fr}}
@media(max-width:600px){.official-container{padding:0 19px}.official-brand{font-size:15px}.official-brand img{width:35px;height:35px}.official-nav nav>a{padding:7px 9px;font-size:12px}.official-hero{padding:42px 0 55px}.official-hero h1{font-size:39px;letter-spacing:-1.4px}.official-hero .lead{font-size:15px}.hero-buttons .official-button{width:100%}.app-preview{transform:none}.preview-floating{right:-5px}.official-section{padding:50px 0}.section-title h2{font-size:28px}.feature-grid,.step-grid,.accuracy-grid{grid-template-columns:1fr}.step-card{padding-right:10px}.accuracy-banner{padding:25px;grid-template-columns:1fr}.official-cta{padding:40px 22px}.official-cta h2{font-size:27px}.page-hero{padding:40px 0 32px}.page-hero h1{font-size:32px}.guide-layout{padding-top:28px;gap:25px}.guide-content h2{font-size:22px}.guide-table{display:block;overflow-x:auto}.download-card,.info-card,.about-panel{padding:23px}.download-meta{grid-template-columns:1fr}.official-footer{grid-template-columns:1fr}.footer-links{flex-wrap:wrap;gap:10px 18px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}