:root{--bg:#F4F6FF;--deep:#E4E8F6;--paper:#FBFBFF;--soft:#EEF0FA;--ink:#1E1A2A;--text:#2E2A3A;--muted:#5A5668;--quiet:#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;overflow-x:hidden}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}.is-locked{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}button{color:inherit}.shell{width:min(980px,calc(100% - 32px));margin:0 auto}.rain-edge{position:fixed;z-index:120;left:0;top:0;bottom:0;width:6px;background:linear-gradient(to bottom,var(--coral) 0 20%,var(--gold) 20% 40%,var(--mint) 40% 60%,var(--sky) 60% 80%,var(--violet) 80% 100%);pointer-events:none}.top-note{position:fixed;z-index:90;top:0;left:0;right:0;height:20px;background:var(--paper);border-bottom:1px solid var(--line);font-size:12px}.top-note-inner{height:20px;display:flex;align-items:center;justify-content:space-between}.text-control{border:0;background:transparent;padding:0 8px;min-height:20px;cursor:pointer}.site-head{position:fixed;z-index:88;top:20px;left:0;right:0;height:54px;background:var(--paper);border-bottom:1px solid rgba(160,128,208,.35)}.head-row{height:54px;display:flex;align-items:center;justify-content:space-between;gap:16px}.brand-link{display:inline-flex;align-items:center;min-width:88px;height:44px}.brand-image:empty{display:none}.logo-img,.footer-logo{height:24px;max-width:150px;object-fit:contain;object-position:center}.brand-fallback{font-size:16px;font-weight:800}.brand-image:not(:empty)+.brand-fallback{display:none}.head-actions{display:flex;align-items:center;gap:8px}.app-link,.menu-button,.primary-button,.secondary-button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 16px;border-radius:10px;font-size:14px;white-space:nowrap;cursor:pointer}.app-link,.primary-button{color:var(--paper);background:linear-gradient(90deg,var(--sky) 0%,var(--violet) 100%);border:0}.menu-button,.secondary-button{background:var(--paper);border:1px solid var(--violet);color:var(--ink)}.ring-nav{position:fixed;z-index:86;top:74px;left:0;right:0;height:52px;background:var(--paper);border-bottom:1px solid var(--line)}.ring-nav-inner{height:52px;display:flex;align-items:center;justify-content:center;gap:34px}.ring-item{height:44px;display:flex;align-items:center;gap:7px;font-size:13px}.ring-no{width:22px;height:22px;border-radius:50%;display:grid;place-items:center;color:var(--ink);border:2px solid transparent}.ring-item:nth-child(1) .ring-no{background:var(--coral)}.ring-item:nth-child(2) .ring-no{background:var(--gold)}.ring-item:nth-child(3) .ring-no{background:var(--mint)}.ring-item:nth-child(4) .ring-no{background:var(--sky)}.ring-item:nth-child(5) .ring-no{background:var(--violet)}.ring-item.is-current .ring-no{border-color:var(--ink)}.site-main{padding-top:150px;padding-bottom:40px;min-height:70vh}h1{font-size:24px;line-height:1.3;color:var(--ink);margin:0 0 18px}h2{font-size:20px;line-height:1.4;color:var(--ink);margin:0 0 14px}h3{font-size:16px;line-height:1.45;color:var(--ink);margin:0 0 8px}p{margin:0 0 14px}.eyebrow{font-size:12px;color:var(--violet);font-weight:800;letter-spacing:.08em;margin-bottom:10px}.lead{font-size:16px;color:var(--muted);max-width:760px}.page-wrap{padding:34px 0 10px}.page-intro{margin-bottom:28px}.button-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}.content-box{background:var(--paper);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:24px}.soft-box{background:var(--soft);border:1px solid var(--line);border-radius:10px;padding:20px}.image-slot{background:var(--paper);border:1px solid var(--line);border-radius:12px;display:flex;align-items:center;justify-content:center;overflow:hidden}.image-slot 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24px}.slant-feature::after{content:"";position:absolute;top:0;right:37%;height:100%;width:2px;background:var(--deep);transform:skewX(-13deg)}.slant-media{position:absolute;right:0;top:0;width:43%;height:176px;padding:10px;background:var(--paper);clip-path:polygon(14% 0,100% 0,100% 100%,0 100%)}.timeline{display:grid;gap:0}.timeline-item{display:grid;grid-template-columns:34px 1fr;gap:14px;position:relative;padding-bottom:22px}.timeline-item:last-child{padding-bottom:0}.timeline-dot{width:16px;height:16px;border-radius:50%;background:var(--violet);margin-top:6px;box-shadow:0 0 0 5px var(--soft)}.timeline-item:not(:last-child)::before{content:"";position:absolute;left:7px;top:22px;bottom:0;width:2px;background:var(--deep)}.timeline-media{height:210px;margin:14px 0}.ring-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.ring-card{background:var(--paper);border:1px solid var(--line);border-radius:50% 50% 14px 14px / 22% 22% 14px 14px;padding:26px 22px 22px;min-height:230px}.ring-card .image-slot{height:150px;margin-bottom:15px;border-radius:50% 50% 10px 10px / 20% 20% 10px 10px}.two-card{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.topic-card{background:var(--paper);border-left:4px solid var(--violet);border-radius:10px;border-top:1px solid var(--line);border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:20px}.topic-card:nth-child(2){border-left-color:var(--sky)}.topic-media{height:220px;margin-bottom:18px}.period-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.period-item{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:18px}.period-item:nth-child(1){border-top:4px solid var(--coral)}.period-item:nth-child(2){border-top:4px solid var(--mint)}.period-item:nth-child(3){border-top:4px solid var(--violet)}.status-list{display:grid;gap:12px}.status-item{display:grid;grid-template-columns:110px 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var(--line);border-radius:12px;overflow:hidden}.cut-copy{padding:26px}.cut-image{min-height:320px;padding:16px;background:var(--soft);clip-path:polygon(10% 0,100% 0,100% 100%,0 100%)}.orbit-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.orbit-card{background:var(--paper);border:1px solid var(--line);border-radius:50% 50% 12px 12px / 16% 16% 12px 12px;padding:24px}.orbit-card .image-slot{height:220px;border-radius:50% 50% 10px 10px / 16% 16% 10px 10px;margin-bottom:16px}.single-column{max-width:760px;margin:0 auto}.section-stack{display:grid;gap:18px}.section-stack section{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:22px}.section-stack section:nth-child(5n+1){border-left:4px solid var(--coral)}.section-stack section:nth-child(5n+2){border-left:4px solid var(--gold)}.section-stack section:nth-child(5n+3){border-left:4px solid var(--mint)}.section-stack section:nth-child(5n+4){border-left:4px solid var(--sky)}.section-stack 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article{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:20px}.center-card{max-width:720px;margin:0 auto;text-align:center}.center-card .image-slot{height:260px;margin:0 auto 20px}.center-card .content-box{text-align:left}.terms{display:grid;gap:16px}.terms section{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:20px}.banner-slot{height:200px;margin-bottom:22px}.brand-cover{height:280px;max-width:680px;margin:0 auto 22px}.qa-list{display:grid;gap:14px}.qa-item{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:20px}.qa-item h2{font-size:17px}.contact-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.contact-options article{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:20px}.notice{background:var(--soft);border-left:4px solid var(--violet);padding:16px 18px;border-radius:8px}.site-footer{background:var(--ink);color:#F4F6FF;font-size:13px;padding:34px 0 calc(34px + env(safe-area-inset-bottom));border-left:6px solid transparent;border-image:linear-gradient(to bottom,var(--coral),var(--gold),var(--mint),var(--sky),var(--violet)) 1}.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:22px}.footer-brand div{display:flex;flex-direction:column}.footer-brand strong{font-size:16px}.footer-brand span{color:#d8d8e8}.footer-groups{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;margin-bottom:22px}.footer-group h2{color:#F4F6FF;font-size:13px;margin-bottom:8px}.footer-group a{display:block;color:#e7e7f2;min-height:30px;padding:3px 0}.footer-note{color:#d2d1de;max-width:820px}.copyright{color:#bcb9ca;margin-bottom:0}.site-menu,.search-layer{position:fixed;left:0;right:0;z-index:110;visibility:hidden;pointer-events:none;opacity:0;transition:.2s ease}.site-menu{top:20px;background:var(--paper);border-bottom:1px solid var(--line);box-shadow:var(--shadow);max-height:28vh;overflow:auto;transform:translateY(-16px)}.site-menu.is-open,.search-layer.is-open{visibility:visible;pointer-events:auto;opacity:1}.site-menu.is-open{transform:translateY(0)}.site-menu-head{min-height:54px;display:flex;align-items:center;justify-content:space-between;gap:12px;position:sticky;top:0;background:var(--paper);z-index:2}.menu-brand{display:flex;align-items:center;gap:10px}.menu-logo:empty{display:none}.close-button{min-height:44px;padding:0 14px;border:1px solid var(--line);border-radius:10px;background:var(--paper);cursor:pointer}.site-menu-body{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;padding-bottom:18px}.menu-group h2{font-size:13px;margin-bottom:8px}.menu-links{display:grid;gap:6px}.menu-links a{display:grid;gap:1px;padding:8px;border-radius:8px;border:1px solid transparent}.menu-links a:hover{border-color:var(--focus);background:var(--soft)}.menu-links strong{font-size:13px}.menu-links span{font-size:12px;color:var(--muted);line-height:1.45}.search-layer{top:74px;padding:10px 0}.search-card{background:var(--paper);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:18px}.search-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}.search-card label{display:block;color:var(--muted);margin-bottom:8px}.search-card input{width:100%;min-height:44px;border:1px solid var(--line);border-radius:9px;padding:0 12px;color:var(--ink);background:var(--paper)}.search-presets{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.search-presets a{padding:8px 12px;background:var(--soft);border-radius:999px}.page-mask{position:fixed;z-index:100;inset:0;background:rgba(30,26,42,.28);visibility:hidden;pointer-events:none;opacity:0;transition:.2s ease}.page-mask.is-open{visibility:visible;pointer-events:auto;opacity:1}.mobile-bottom{display:none}.primary-button:hover,.app-link:hover{filter:brightness(.97)}.secondary-button:hover,.menu-button:hover{background:var(--soft)}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--focus);outline-offset:2px}
@media (max-width:760px){.shell{width:calc(100% - 32px)}.ring-nav{display:none}.site-main{padding-top:98px;padding-bottom:74px}.site-head{top:20px}.head-row{gap:8px}.brand-link{min-width:0}.app-link,.menu-button{padding:0 12px}.site-menu{top:20px;max-height:72vh}.site-menu-body{grid-template-columns:1fr 1fr}.search-layer{top:20px;bottom:0;padding:0;background:var(--ink)}.search-card{width:100%;height:100%;border-radius:0;border:0;background:var(--ink);color:#F4F6FF;box-shadow:none;padding:22px 16px}.search-head strong,.search-card label{color:#F4F6FF}.search-card .close-button{background:transparent;color:#F4F6FF;border-color:rgba(244,246,255,.25)}.search-card input{background:#FBFBFF}.search-presets a{background:rgba(244,246,255,.1);color:#F4F6FF}.mobile-bottom{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;z-index:80;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-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}.slant-feature{padding:200px 18px 20px}.slant-feature::after{display:none}.slant-media{width:100%;height:176px;clip-path:polygon(0 0,100% 0,100% 84%,0 100%)}.ring-cards,.two-card,.orbit-grid,.contact-options,.faq-mini{grid-template-columns:1fr}.period-row{grid-template-columns:1fr}.status-item,.strip-step{grid-template-columns:1fr;gap:6px}.cut-layout{grid-template-columns:1fr}.cut-image{min-height:230px;clip-path:polygon(0 10%,100% 0,100% 100%,0 100%)}.method-flow{grid-template-columns:1fr}.method-flow article:not(:last-child)::after{content:"↓";right:auto;left:50%;top:auto;bottom:-18px;transform:translateX(-50%)}.footer-groups{grid-template-columns:1fr 1fr}.banner-slot{height:180px}.app-art{height:280px}}
@media (max-width:460px){.site-menu-body{grid-template-columns:1fr}.footer-groups{grid-template-columns:1fr}.site-menu{max-height:78vh}.brand-fallback{font-size:15px}.app-link,.menu-button{padding:0 10px}.page-wrap{padding-top:26px}.content-box,.soft-box{padding:18px}}

.mt-18{margin-top:18px}.mt-20{margin-top:20px}.center-buttons{justify-content:center}.center-lead{margin-left:auto;margin-right:auto}.text-left{text-align:left}