:root{--bg:#F4F1F8;--deep:#E4DEEC;--paper:#FBF8FF;--sub:#EEE8F4;--ink:#161418;--text:#2A242C;--muted:#5A5460;--soft:#7A7480;--blue:#4A8AB8;--pink:#C46A8A;--green:#6A9A48;--gold:#C4A04A;--purple:#6A4A9A;--line:rgba(22,20,24,.12);--strong:rgba(106,74,154,.45);--shadow:0 12px 28px rgba(22,20,24,.08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:linear-gradient(180deg,var(--bg),#faf7fd 46%,var(--bg));color:var(--text);font:15px/1.72 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;overflow-x:hidden}body.locked{overflow:hidden}a{color:inherit;text-decoration:none}button{font:inherit}.site-head{position:fixed;z-index:80;left:0;right:0;top:0}.top-strip{height:20px;background:var(--ink);color:var(--gold);display:flex;align-items:center;justify-content:space-between;padding:0 max(16px,calc((100vw - 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h1,.page-title{font-size:24px;line-height:1.3;color:var(--ink);margin:0 0 14px}.hero-lead{font-size:18px;color:var(--purple);font-weight:800;margin:0 0 10px}.hero-note{padding:18px;background:var(--ink);color:var(--paper);border-radius:12px;box-shadow:var(--shadow)}.hero-note strong{display:block;color:var(--gold);margin-bottom:6px}.button-link{background:linear-gradient(135deg,var(--blue),var(--pink) 48%,var(--purple));color:var(--paper);margin-top:14px}.button-link.secondary{background:var(--paper);border:1px solid var(--purple);color:var(--ink)}.section{max-width:960px;margin:0 auto 22px;background:var(--paper);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:24px}.section h2{font-size:20px;color:var(--ink);margin:0 0 12px}.section h3{font-size:16px;color:var(--ink);margin:0 0 8px}.image-slot{background:var(--paper);border:1px dashed var(--line);display:flex;align-items:center;justify-content:center;overflow:hidden;border-radius:10px}.image-slot 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1fr;gap:16px;padding:14px 0;border-bottom:1px solid var(--line)}.progress-row strong{color:var(--purple)}.app-flow{display:grid;grid-template-columns:1fr 220px;gap:24px;align-items:center}.app-flow .image-slot{height:300px}.icon-row{display:flex;align-items:center;gap:12px;margin-top:12px}.icon-row .image-slot{width:56px;height:56px}.method-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.method-grid article,.term{padding:18px;border-left:4px solid var(--blue);background:var(--sub);border-radius:8px}.content-list{display:grid;gap:12px}.content-list article{padding:18px;background:var(--sub);border-radius:10px}.center-card{max-width:720px;margin:0 auto;text-align:center}.check-list{display:grid;gap:10px;padding:0;list-style:none}.check-list li{background:var(--sub);padding:14px 16px;border-radius:8px}.banner-slot{height:200px;margin-bottom:20px}.single-col article{padding:18px 0;border-bottom:1px solid var(--line)}.terms{display:grid;gap:14px}.faq-list{display:grid;gap:12px}.faq-item{padding:18px;background:var(--sub);border-radius:10px}.faq-item h3{margin-bottom:8px}.page-intro{margin:0 0 20px;color:var(--muted)}.footer-brand{max-width:960px;margin:0 auto;display:flex;align-items:center;gap:12px}.footer-brand div{display:grid}.footer-brand span{font-size:12px;color:var(--gold)}.site-footer{background:var(--ink);color:var(--bg);border-top:1px solid var(--gold);padding:30px 16px 78px;font-size:13px}.footer-groups{max-width:960px;margin:22px auto;display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.footer-groups h3{font-size:14px;color:var(--gold);margin:0 0 8px}.footer-groups a{display:block;margin:5px 0;color:var(--bg)}.footer-note,.copyright{max-width:960px;margin:10px 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16px}.panel-scroll section{margin-bottom:14px}.panel-scroll h3{font-size:14px;color:var(--purple);margin:4px 0 6px}.panel-scroll a{display:grid;padding:8px 0;border-bottom:1px solid var(--line)}.panel-scroll span{font-size:12px;color:var(--muted)}.search-layer{position:fixed;z-index:101;left:50%;top:74px;transform:translateX(-50%) translateY(-12px);width:min(640px,calc(100% - 32px));background:var(--paper);border:1px solid var(--strong);box-shadow:var(--shadow);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.search-layer.open{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0)}.search-box{padding:20px}.search-top{display:flex;align-items:center;justify-content:space-between}.search-presets{display:flex;flex-wrap:wrap;gap:8px}.search-presets a{border:1px solid var(--purple);padding:8px 12px;border-radius:8px}.mobile-nav{display:none}a:focus-visible,button:focus-visible{outline:3px solid 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@media(max-width:760px){.quick-nav{display:none}.site-main{padding-top:92px;padding-bottom:76px}.main-head,.top-strip{padding-left:16px;padding-right:16px}.head-link,.menu-button{padding:0 12px}.hero-new{grid-template-columns:1fr;padding-top:26px}.hero-note{margin-top:0}.spotlight,.app-flow,.offset-grid,.method-grid,.footer-groups{grid-template-columns:1fr}.offset-card:nth-child(2){margin-top:0}.stream article{grid-template-columns:48px 1fr}.progress-row{grid-template-columns:1fr;gap:4px}.side-panel{top:74px;width:88%;max-width:none;height:min(80vh,680px)}.search-layer{inset:20px 0 auto 0;transform:none;width:100%;height:calc(100vh - 20px);background:var(--ink);color:var(--gold);border:0}.search-layer.open{transform:none}.search-box{padding:24px 16px}.search-layer .close-button,.search-layer .search-presets a{color:var(--gold);border-color:var(--gold);background:transparent}.mobile-nav{position:fixed;z-index:85;display:grid;grid-template-columns:repeat(4,1fr);left:0;right:0;bottom:0;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:var(--paper);border-top:1px solid var(--line)}.mobile-nav a{display:flex;align-items:center;justify-content:center;min-height:48px}.mobile-nav a.is-current{background:var(--purple);color:var(--paper)}.site-footer{padding-bottom:88px}.section{padding:20px 16px}.banner-slot{height:180px}.app-flow .image-slot{height:280px}}