:root{
  --bg:#F4F6FF;--deep:#E4E8F6;--surface:#FBFBFF;--soft:#EEF0FA;--title:#1E1A2A;--text:#2E2A3A;--muted:#5A5668;--assist:#7A7688;
  --coral:#E07070;--gold:#E0B050;--mint:#70C090;--sky:#70A8D8;--violet:#A080D0;--line:rgba(30,26,42,.12);--focus:rgba(160,128,208,.48);--shadow:0 12px 28px rgba(30,26,42,.08)
}
*{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","Hiragino Sans GB","Microsoft YaHei",sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}a{color:inherit;text-decoration:none}button{font:inherit}.shell{width:min(980px,calc(100% - 32px));margin:0 auto}.color-rail{position:fixed;left:0;top:0;bottom:0;width:6px;z-index:120;display:flex;flex-direction:column}.color-rail i{flex:1}.color-rail i:nth-child(1){background:var(--coral)}.color-rail i:nth-child(2){background:var(--gold)}.color-rail i:nth-child(3){background:var(--mint)}.color-rail i:nth-child(4){background:var(--sky)}.color-rail i:nth-child(5){background:var(--violet)}
.site-header{position:fixed;left:0;right:0;top:0;z-index:100}.top-strip{height:20px;background:var(--surface);font-size:12px;border-bottom:1px solid var(--line)}.strip-inner{height:20px;display:flex;align-items:center;justify-content:space-between}.text-button{border:0;background:transparent;color:var(--title);padding:0 4px;cursor:pointer}.brand-row{height:54px;background:var(--surface);border-bottom:1px solid rgba(160,128,208,.32)}.brand-inner{height:54px;display:flex;align-items:center;justify-content:space-between}.brand-link{min-height:44px;display:flex;align-items:center}.brand-logo,.footer-logo,.menu-logo{height:24px;width:auto;max-width:160px;object-fit:contain;object-position:center}.brand-text{font-size:16px;font-weight:800;color:var(--title)}.brand-actions{display:flex;align-items:center;gap:8px}.app-link,.menu-button{min-height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px}.app-link{padding:0 14px;border:1px solid rgba(160,128,208,.48);background:var(--surface);font-size:14px}.menu-button{border:1px solid var(--line);background:var(--soft);padding:0 12px;gap:8px;color:var(--title);cursor:pointer}.menu-button b{font-size:18px}.ring-nav{height:52px;background:var(--surface);border-bottom:1px solid var(--line)}.ring-inner{height:52px;display:flex;align-items:center;justify-content:center;gap:36px}.ring-item{display:flex;align-items:center;gap:8px;font-size:13px;min-height:44px;color:var(--muted)}.ring-item em{font-style:normal}.ring-dot{width:22px;height:22px;border-radius:50%;display:inline-grid;place-items:center;color:var(--title);font-size:12px;border:1px solid transparent}.ring-coral{background:rgba(224,112,112,.34)}.ring-gold{background:rgba(224,176,80,.34)}.ring-mint{background:rgba(112,192,144,.34)}.ring-sky{background:rgba(112,168,216,.34)}.ring-violet{background:rgba(160,128,208,.34)}.ring-item.is-current .ring-dot{border:2px solid var(--title);font-weight:800}.site-main{padding-top:146px;padding-bottom:40px;min-height:70vh}
h1{font-size:24px;line-height:1.3;margin:0 0 14px;color:var(--title)}h2{font-size:20px;line-height:1.4;margin:0 0 12px;color:var(--title)}h3{font-size:16px;line-height:1.5;margin:0 0 8px;color:var(--title)}p{margin:0 0 14px}.eyebrow{font-size:12px;font-weight:800;letter-spacing:.08em;color:var(--violet);margin-bottom:8px}.lead{font-size:16px;color:var(--muted);max-width:760px}.page-intro{padding:34px 0 24px}.content-section{padding:24px 0}.surface{background:var(--surface);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow)}.soft-surface{background:var(--soft);border:1px solid var(--line);border-radius:12px}.btn-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.btn{min-height:42px;padding:0 18px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;font-size:14px;white-space:nowrap}.btn-primary{background:linear-gradient(90deg,#70A8D8 0%,#A080D0 100%);color:#FBFBFF}.btn-secondary{background:#FBFBFF;color:var(--title);border:1px solid var(--violet)}a:focus-visible,button:focus-visible{outline:3px solid var(--focus);outline-offset:2px}.btn:hover,.app-link:hover,.ring-item:hover,.footer-links a:hover,.search-presets a:hover{transform:translateY(-1px)}
.media-slot{background:var(--surface);border:1px solid var(--line);border-radius:12px;display:flex;align-items:center;justify-content:center;overflow:hidden;min-height:150px}.media-img{width:100%;height:100%;object-fit:contain;object-position:center;display:block}.img-note{font-size:12px;color:var(--assist)}
.index-hero{padding:34px 0 18px}.index-ring-index{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}.index-ring-index a{padding:7px 10px;border-radius:999px;background:var(--surface);border:1px solid var(--line);font-size:13px}.index-hero .hero-copy{max-width:790px}.slice-section{margin:26px auto;padding:26px;border-radius:12px;background:linear-gradient(120deg,var(--surface) 0 64%,var(--soft) 64% 100%);border:1px solid var(--line);display:grid;grid-template-columns:1fr 310px;gap:30px;align-items:center;overflow:hidden}.slice-media{height:176px;clip-path:polygon(14% 0,100% 0,100% 100%,0 100%)}
.timeline{position:relative;margin:18px 0 0;padding-left:34px}.timeline:before{content:"";position:absolute;left:11px;top:4px;bottom:6px;width:2px;background:linear-gradient(var(--coral),var(--gold),var(--mint),var(--sky),var(--violet))}.timeline-item{position:relative;padding:0 0 22px}.timeline-item:before{content:"";position:absolute;left:-29px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--surface);border:3px solid var(--violet)}.timeline-item .media-slot{height:190px;margin:12px 0}.ring-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.ring-card{position:relative;padding:22px 22px 20px 28px;background:var(--surface);border:1px solid var(--line);border-radius:50px 12px 12px 50px;min-height:200px}.ring-card:before{content:"";position:absolute;left:12px;top:18px;bottom:18px;width:7px;border-radius:20px;background:linear-gradient(var(--coral),var(--gold),var(--mint),var(--sky),var(--violet))}.ring-card .media-slot{height:160px;margin:10px 0 14px;border-radius:38px 10px 10px 38px}.shelf-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:16px}.shelf-head{grid-column:1/-1;height:180px}.shelf-card{padding:20px}.month-band{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.month-band article{padding:18px;background:var(--surface);border:1px solid var(--line);border-top:4px solid var(--sky);border-radius:10px}.month-band article:nth-child(2){border-top-color:var(--mint)}.month-band article:nth-child(3){border-top-color:var(--violet)}.status-list{display:grid;gap:10px}.status-row{display:grid;grid-template-columns:120px 1fr auto;gap:14px;align-items:center;padding:14px 16px;background:var(--surface);border:1px solid var(--line);border-radius:10px}.status-chip{padding:4px 9px;border-radius:999px;background:var(--soft);font-size:12px}.app-stack{text-align:center}.app-visuals{display:flex;align-items:center;justify-content:center;gap:18px;margin-bottom:20px}.app-visuals .app-shot{width:min(340px,70vw);height:320px}.app-icon-slot{width:68px;height:68px;min-height:68px}.app-copy{text-align:left;max-width:760px;margin:auto}.faq-mini{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.faq-mini article{padding:18px;background:var(--surface);border:1px solid var(--line);border-radius:10px}.about-home{padding:22px;background:var(--surface);border-left:5px solid var(--violet);border-radius:10px}
.diagonal-page .feature-slice{display:grid;grid-template-columns:1fr 1fr;gap:0;overflow:hidden}.diagonal-page .feature-slice .copy{padding:30px}.diagonal-page .feature-slice .media-slot{border:0;border-radius:0;min-height:250px;clip-path:polygon(13% 0,100% 0,100% 100%,0 100%)}.method-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.method-grid article{padding:18px;background:var(--surface);border:1px solid var(--line);border-radius:12px}.single-column{max-width:760px;margin:0 auto}.single-column article{padding:20px 0;border-bottom:1px solid var(--line)}.single-column article:last-child{border-bottom:0}.memo-list{counter-reset:memo;display:grid;gap:12px}.memo-list article{counter-increment:memo;padding:18px 18px 18px 62px;position:relative;background:var(--surface);border:1px solid var(--line);border-radius:10px}.memo-list article:before{content:counter(memo,decimal-leading-zero);position:absolute;left:16px;top:17px;font-weight:800;color:var(--violet)}.guide-steps{display:grid;gap:16px}.guide-steps article{display:grid;grid-template-columns:46px 1fr;gap:16px;padding:18px;background:var(--surface);border:1px solid var(--line);border-radius:12px}.guide-steps span{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;background:var(--soft);font-weight:800}.topic-list{display:grid;gap:14px}.topic-list article{padding:20px 22px;background:var(--surface);border:1px solid var(--line);border-left:6px solid var(--violet);border-radius:10px}.topic-list article:nth-child(2n){border-left-color:var(--sky)}.center-card-page .center-card{max-width:760px;margin:0 auto 18px;padding:26px;text-align:center}.center-card-page .center-card p{text-align:left}.terms{display:grid;gap:16px}.terms section{padding:20px;background:var(--surface);border:1px solid var(--line);border-radius:10px}.faq-list{display:grid;gap:12px}.faq-item{padding:18px;background:var(--surface);border:1px solid var(--line);border-radius:10px}.faq-item h2{font-size:16px;margin-bottom:8px}.contact-options{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.contact-options article{padding:20px;background:var(--surface);border:1px solid var(--line);border-radius:10px}.banner-slot{height:200px;margin:18px 0 24px}.compact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.compact-grid article{padding:18px;background:var(--surface);border:1px solid var(--line);border-radius:10px}
.pad-22{padding:22px}.mt-18{margin-top:18px}.mb-14{margin-bottom:14px}.my-14{margin-top:14px;margin-bottom:14px}.media-180{height:180px}.media-220{height:220px}.media-230{height:230px}.media-260{height:260px}.btn-center{justify-content:center}
.site-footer{background:var(--title);color:#F4F6FF;padding:34px 0 calc(24px + env(safe-area-inset-bottom));font-size:13px;position:relative}.site-footer:before{content:"";position:absolute;left:0;top:0;bottom:0;width:6px;background:linear-gradient(var(--coral) 0 20%,var(--gold) 20% 40%,var(--mint) 40% 60%,var(--sky) 60% 80%,var(--violet) 80%)}.footer-grid{display:grid;grid-template-columns:1.05fr 1.95fr;gap:40px}.footer-brandline{display:flex;align-items:center;gap:12px;margin-bottom:12px}.footer-brandline strong{display:block}.footer-brandline span{display:block;color:#c8c5d3}.footer-brand p{color:#d8d5e2}.footer-links{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.footer-links div{display:flex;flex-direction:column;gap:5px}.footer-links strong{color:#fff;margin-bottom:5px}.footer-links a{color:#d8d5e2}.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.16);margin-top:24px;padding-top:16px;color:#c8c5d3}
.ui-overlay{position:fixed;inset:0;background:rgba(30,26,42,.3);z-index:105;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.ui-overlay.is-open{opacity:1;visibility:visible;pointer-events:auto}.menu-panel{position:fixed;left:0;right:0;top:20px;z-index:110;height:28vh;min-height:240px;background:var(--surface);border-bottom:1px solid var(--line);box-shadow:var(--shadow);transform:translateY(-110%);visibility:hidden;pointer-events:none;transition:.25s;overflow:auto}.menu-panel.is-open{transform:translateY(0);visibility:visible;pointer-events:auto}.menu-head{height:54px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.menu-brand{display:flex;align-items:center;gap:10px}.icon-close{width:44px;height:44px;border:0;border-radius:10px;background:var(--soft);font-size:24px;cursor:pointer}.menu-groups{display:grid;grid-template-columns:1fr 1fr .8fr 1.4fr;gap:18px;padding-top:12px;padding-bottom:18px}.menu-groups h2{font-size:13px;margin:0 0 6px;color:var(--violet)}.menu-groups a{display:flex;gap:6px;align-items:baseline;margin:5px 0}.menu-groups a b{font-size:13px;white-space:nowrap}.menu-groups a span{font-size:11px;color:var(--assist)}.search-panel{position:fixed;z-index:112;left:0;right:0;top:74px;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.search-panel.is-open{opacity:1;visibility:visible;pointer-events:auto}.search-card{background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:0 0 12px 12px;padding:18px}.search-top{display:flex;justify-content:space-between;align-items:center}.search-presets{display:flex;flex-wrap:wrap;gap:8px}.search-presets a{padding:8px 12px;border:1px solid var(--line);border-radius:999px;background:var(--soft)}.ui-locked{overflow:hidden}.mobile-bottom{display:none}
@media (max-width:760px){
  body{padding-bottom:calc(48px + env(safe-area-inset-bottom))}.ring-nav{display:none}.site-main{padding-top:74px;padding-bottom:26px}.shell{width:calc(100% - 32px)}.brand-actions{gap:6px}.app-link{padding:0 10px}.menu-button span{display:none}.slice-section{grid-template-columns:1fr;padding:20px;background:var(--surface)}.slice-media{height:176px;clip-path:polygon(0 10%,100% 0,100% 100%,0 100%)}.ring-cards,.shelf-grid,.method-grid,.faq-mini,.contact-options,.compact-grid{grid-template-columns:1fr}.shelf-head{grid-column:auto}.month-band{grid-template-columns:1fr}.status-row{grid-template-columns:1fr;gap:6px}.app-visuals{flex-direction:column}.footer-grid{grid-template-columns:1fr}.footer-links{grid-template-columns:repeat(2,1fr)}.footer-bottom{flex-direction:column}.menu-panel{top:20px;height:30vh;min-height:240px}.menu-groups{grid-template-columns:1fr 1fr;gap:14px}.menu-groups a{display:block}.menu-groups a span{display:block}.search-panel{top:0;bottom:0;background:var(--title);padding:76px 0 60px}.search-card{height:100%;background:var(--title);color:#F4F6FF;border:0;border-radius:0;box-shadow:none}.search-card .icon-close{background:rgba(255,255,255,.12);color:#fff}.search-card p{color:#d8d5e2}.search-presets a{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.2);color:#fff}.mobile-bottom{position:fixed;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(--surface);border-top:1px solid var(--line);z-index:90}.mobile-bottom a{display:flex;align-items:center;justify-content:center;min-height:48px;font-size:13px}.mobile-bottom a.is-current{background:var(--violet);color:#FBFBFF}.diagonal-page .feature-slice{grid-template-columns:1fr}.diagonal-page .feature-slice .media-slot{min-height:190px;clip-path:polygon(0 8%,100% 0,100% 100%,0 100%)}.guide-steps article{grid-template-columns:40px 1fr}.banner-slot{height:200px}
}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}