:root{--bg:#F4F6FF;--deep:#E4E8F6;--paper:#FBFBFF;--soft:#EEF0FA;--ink:#1E1A2A;--text:#2E2A3A;--muted:#5A5668;--aux:#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);--max:980px}
*{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",Arial,sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden;padding-top:126px}body.is-locked{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}img{max-width:100%;display:block}.wrap{width:min(calc(100% - 32px),var(--max));margin:0 auto}.rainbow-edge{position:fixed;left:0;top:0;bottom:0;width:6px;z-index:80;background:linear-gradient(to bottom,var(--coral) 0 20%,var(--gold) 20% 40%,var(--mint) 40% 60%,var(--sky) 60% 80%,var(--violet) 80%)}
.top-note{position:fixed;z-index:70;top:0;left:0;right:0;height:20px;background:var(--paper);border-bottom:1px solid var(--line);font-size:12px}.top-note__inner{width:min(calc(100% - 32px),var(--max));height:20px;margin:auto;display:flex;justify-content:space-between;align-items:center}.text-button{background:none;border:0;color:var(--ink);height:20px;padding:0 4px;cursor:pointer}.site-header{position:fixed;z-index:65;left:0;right:0;top:20px;background:var(--paper);box-shadow:0 1px 0 var(--line)}.brand-row{height:54px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid rgba(160,128,208,.26)}.brand-link{min-width:120px;height:44px;display:inline-flex;align-items:center}.brand-logo{height:24px;width:auto;max-width:150px;object-fit:contain}.brand-fallback{font-size:16px;font-weight:800;letter-spacing:.04em;color:var(--ink)}.header-actions{display:flex;gap:8px;align-items:center}.app-link,.menu-button,.button{min-height:44px;padding:0 16px;border-radius:9px;border:1px solid transparent;display:inline-flex;align-items:center;justify-content:center;white-space:nowrap;font-size:14px;cursor:pointer}.app-link,.button.primary{color:var(--paper);background:linear-gradient(90deg,var(--sky) 0%,var(--violet) 100%)}.menu-button,.button.secondary{background:var(--paper);border-color:var(--violet);color:var(--ink)}.menu-button i{width:14px;height:10px;margin-left:8px;border-top:1px solid currentColor;border-bottom:1px solid currentColor;position:relative}.menu-button i:after{content:"";position:absolute;left:0;right:0;top:4px;border-top:1px solid currentColor}.circle-nav{height:52px;display:flex;justify-content:center;align-items:center;gap:34px}.circle-nav a{font-size:13px;display:flex;gap:7px;align-items:center;min-height:44px}.circle-nav span{width:22px;height:22px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;color:var(--ink);font-size:12px;border:1px solid transparent}.circle-nav .n1{background:var(--coral)}.circle-nav .n2{background:var(--gold)}.circle-nav .n3{background:var(--mint)}.circle-nav .n4{background:var(--sky)}.circle-nav .n5{background:var(--violet)}.circle-nav a.is-current span{border:2px solid var(--ink)}
.site-main{min-height:60vh}.section{padding:46px 0}.section.compact{padding:32px 0}.section.alt{background:var(--soft)}.section.deep{background:var(--deep)}.eyebrow{font-size:12px;font-weight:700;letter-spacing:.16em;color:var(--violet);margin:0 0 8px}.hero h1,.page-head h1{font-size:24px;line-height:1.3;color:var(--ink);margin:0 0 14px}.section h2{font-size:20px;line-height:1.35;color:var(--ink);margin:0 0 14px}.section h3{font-size:16px;line-height:1.45;color:var(--ink);margin:0 0 8px}.section p{margin:0 0 12px}.lead{font-size:16px;color:var(--text);max-width:760px}.muted{color:var(--muted)}.hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}.button:hover,.app-link:hover,.menu-button:hover{transform:translateY(-1px);box-shadow:var(--shadow)}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--focus);outline-offset:2px}.index-dots{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:22px}.index-dots a{display:inline-flex;align-items:center;gap:6px;padding:7px 10px;border-radius:999px;background:var(--paper);border:1px solid var(--line);font-size:13px}.index-dots i{width:9px;height:9px;border-radius:50%}.index-dots a:nth-child(1) i{background:var(--coral)}.index-dots a:nth-child(2) i{background:var(--gold)}.index-dots a:nth-child(3) i{background:var(--mint)}.index-dots a:nth-child(4) i{background:var(--sky)}.index-dots a:nth-child(5) i{background:var(--violet)}
.media-slot{background:var(--paper);border:1px solid var(--line);border-radius:10px;min-height:120px;display:flex;align-items:center;justify-content:center;overflow:hidden}.media-slot img{width:100%;height:100%;object-fit:contain;object-position:center}.slot-wide{height:176px}.slot-banner{height:200px}.slot-app{height:min(320px,70vw);max-width:420px;margin:0 auto}.slot-icon{width:64px;height:64px;min-height:64px;margin:14px auto}.slot-mid{height:220px}.slot-tall{height:280px}
.slant-feature{position:relative;min-height:240px;background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:30px 42% 30px 28px;box-shadow:var(--shadow);overflow:hidden}.slant-feature .media-slot{position:absolute;right:-3%;top:22px;width:42%;height:176px;clip-path:polygon(18% 0,100% 0,100% 100%,0 100%);border-radius:0;background:var(--paper)}.timeline{position:relative;padding-left:28px}.timeline:before{content:"";position:absolute;left:8px;top:7px;bottom:5px;width:2px;background:linear-gradient(var(--coral),var(--gold),var(--violet))}.timeline-item{position:relative;padding:0 0 26px 18px}.timeline-item:before{content:"";position:absolute;left:-25px;top:7px;width:11px;height:11px;border-radius:50%;background:var(--paper);border:3px solid var(--violet)}.timeline-item:first-child{display:grid;grid-template-columns:220px 1fr;gap:20px}.timeline-item:first-child .media-slot{grid-row:1/4;height:150px}.ring-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.ring-card{position:relative;background:var(--paper);border:1px solid var(--line);border-radius:50px 12px 12px 50px;padding:24px 22px 24px 86px;min-height:150px}.ring-card:before{content:"";position:absolute;left:20px;top:26px;width:46px;height:46px;border-radius:50%;border:9px solid var(--mint);box-shadow:0 0 0 1px var(--line)}.ring-card:nth-child(2):before{border-color:var(--sky)}.ring-card .media-slot{position:absolute;left:12px;bottom:12px;width:62px;height:62px;min-height:62px;border-radius:50%}.cards-2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.info-card{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:22px}.info-card.accent{border-color:var(--focus)}.state-list{display:grid;gap:12px}.state-item{display:grid;grid-template-columns:100px 1fr;gap:16px;align-items:center;background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:14px 16px}.state-item b{font-size:13px;color:var(--ink)}.state-item .bar{height:8px;border-radius:99px;background:var(--deep);overflow:hidden}.state-item .bar i{display:block;height:100%;background:linear-gradient(90deg,var(--sky),var(--violet))}.bar-100{width:100%}.bar-66{width:66%}.bar-36{width:36%}.spaced-18{margin-top:18px}.spaced-20{margin-top:20px}.app-feature{text-align:center}.app-feature .app-copy{max-width:760px;margin:24px auto 0;text-align:left}.app-images{display:flex;justify-content:center;gap:14px;align-items:flex-end;flex-wrap:wrap}.app-images .slot-app{width:min(420px,100%);margin:0}.app-images .slot-icon{margin:0 0 8px}.faq-mini{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.faq-mini details,.faq-list details{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:14px 16px}.faq-mini summary,.faq-list summary{cursor:pointer;font-weight:700;color:var(--ink)}.faq-mini p,.faq-list p{margin:10px 0 0}.brand-box{background:var(--ink);color:var(--paper);border-radius:12px;padding:28px}.brand-box h2{color:var(--paper)}
.page-head{padding:42px 0 26px}.page-head .intro{max-width:790px}.page-layout{padding-bottom:56px}.copy-block{max-width:820px}.copy-block p+p{margin-top:12px}.method-steps{counter-reset:method;display:grid;gap:14px}.method-steps article{counter-increment:method;background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:22px 22px 22px 72px;position:relative}.method-steps article:before{content:counter(method,decimal-leading-zero);position:absolute;left:22px;top:21px;width:34px;height:34px;border-radius:50%;background:var(--violet);color:var(--paper);display:grid;place-items:center;font-weight:800}.topic-list{display:grid;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:10px;overflow:hidden}.topic-list article{background:var(--paper);padding:20px;display:grid;grid-template-columns:180px 1fr;gap:20px}.topic-list h2{margin:0}.center-cards{display:grid;grid-template-columns:minmax(0,720px);justify-content:center;gap:16px}.center-cards article{text-align:center;background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:26px}.memo-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.memo-list section{background:var(--paper);border:1px dashed var(--violet);border-radius:10px;padding:20px}.terms{display:grid;gap:18px}.terms section{background:var(--paper);border-left:4px solid var(--sky);padding:20px 22px;border-radius:0 10px 10px 0}.terms section:nth-child(even){border-left-color:var(--violet)}.tri-period{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.tri-period article{background:var(--paper);border:1px solid var(--line);padding:22px;border-radius:12px}.tri-period article:nth-child(1){border-top:4px solid var(--coral)}.tri-period article:nth-child(2){border-top:4px solid var(--gold)}.tri-period article:nth-child(3){border-top:4px solid var(--sky)}.single-column{max-width:780px}.single-column>section{margin-bottom:24px;padding-bottom:24px;border-bottom:1px solid var(--line)}.single-column>section:last-child{border-bottom:0}.angled-page{position:relative}.angled-page .intro-panel{background:var(--paper);padding:28px 42% 28px 24px;border:1px solid var(--line);border-radius:12px;min-height:260px;position:relative;overflow:hidden}.angled-page .intro-panel .media-slot{position:absolute;right:-2%;top:20px;width:40%;height:210px;clip-path:polygon(16% 0,100% 0,100% 100%,0 100%)}.angled-points{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:18px}.angled-points article{background:var(--paper);border:1px solid var(--line);padding:14px;border-radius:8px}.status-page .media-slot{margin-bottom:18px}.status-track{display:grid;gap:14px}.status-track article{display:grid;grid-template-columns:120px 1fr;gap:18px;background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:18px}.status-tag{height:32px;display:flex;align-items:center;justify-content:center;border-radius:999px;background:var(--soft);font-size:13px;font-weight:700}.weibu-rings{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.weibu-rings article{background:var(--paper);border:1px solid var(--line);border-radius:80px 12px 12px 80px;padding:24px 24px 24px 96px;position:relative;min-height:180px}.weibu-rings article:before{content:"";position:absolute;left:24px;top:42px;width:52px;height:52px;border-radius:50%;border:10px solid var(--mint)}.weibu-rings article:nth-child(2):before{border-color:var(--gold)}.weibu-rings article:nth-child(3):before{border-color:var(--sky)}.weibu-rings article:nth-child(4):before{border-color:var(--violet)}.weibu-rings .media-slot{position:absolute;left:15px;bottom:16px;width:70px;height:70px;min-height:70px;border-radius:50%}.about-banner{margin:0 auto 24px}.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.contact-grid article{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:22px}.contact-grid a{color:#5e4b97;text-decoration:underline}.source-note{font-size:13px;color:var(--muted);padding:14px 16px;background:var(--soft);border-radius:8px}
.site-footer{background:var(--ink);color:var(--paper);font-size:13px;padding:38px 0 calc(28px + env(safe-area-inset-bottom));position:relative}.site-footer:before{content:"";position:absolute;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%)}.footer-brand{display:flex;gap:10px;align-items:center;margin-bottom:22px}.footer-brand strong{font-size:16px}.footer-logo{height:24px;width:auto;object-fit:contain}.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}.footer-grid h2{font-size:14px;margin:0 0 8px;color:var(--paper)}.footer-grid a{display:block;color:#e7e6ef;padding:3px 0}.footer-notice{color:#d3d0df;max-width:760px;margin:24px 0 10px}.copyright{color:#aaa6b8;margin:0}.page-overlay{position:fixed;z-index:83;inset:0;background:rgba(30,26,42,.46);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.page-overlay.is-open{opacity:1;visibility:visible;pointer-events:auto}.site-menu{position:fixed;z-index:85;left:0;right:0;top:20px;height:28vh;min-height:250px;max-height:420px;background:var(--paper);transform:translateY(-110%);visibility:hidden;pointer-events:none;transition:transform .24s ease,visibility .24s;box-shadow:var(--shadow);overflow:auto}.site-menu.is-open{transform:translateY(0);visibility:visible;pointer-events:auto}.menu-head{height:56px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.menu-brand{display:flex;align-items:center;gap:8px}.menu-brand img{height:24px;width:auto;object-fit:contain}.close-button{min-width:64px;min-height:44px;border:1px solid var(--violet);background:var(--paper);color:var(--ink);border-radius:8px;cursor:pointer}.menu-groups{display:grid;grid-template-columns:1.1fr 1.1fr .8fr 1.2fr;gap:18px;padding-top:14px;padding-bottom:20px}.menu-groups h2{font-size:13px;color:var(--aux);margin:0 0 6px}.menu-groups a{display:block;padding:6px 0;border-bottom:1px solid rgba(30,26,42,.06)}.menu-groups b{display:block;font-size:13px;color:var(--ink)}.menu-groups span{display:block;font-size:11px;color:var(--muted);line-height:1.45}.search-panel{position:fixed;z-index:86;left:0;right:0;top:74px;visibility:hidden;pointer-events:none;opacity:0;transition:.2s}.search-panel.is-open{visibility:visible;pointer-events:auto;opacity:1}.search-card{width:min(calc(100% - 32px),680px);margin:0 auto;background:var(--paper);border:1px solid var(--line);border-radius:0 0 12px 12px;padding:18px;box-shadow:var(--shadow)}.search-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.search-card label{display:block;margin-bottom:8px;color:var(--muted)}.search-card input{width:100%;height:44px;border:1px solid var(--line);border-radius:8px;background:var(--soft);padding:0 12px;color:var(--ink)}.search-presets{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.search-presets a{min-height:44px;display:inline-flex;align-items:center;padding:0 14px;border-radius:999px;background:var(--soft);border:1px solid var(--line)}.mobile-bar{display:none}
@media(max-width:760px){body{padding-top:74px;padding-bottom:calc(48px + env(safe-area-inset-bottom))}.wrap,.top-note__inner{width:calc(100% - 32px)}.circle-nav{display:none}.site-header{height:54px}.brand-row{height:54px}.brand-link{min-width:88px}.brand-logo{max-width:110px}.app-link,.menu-button{padding:0 11px;min-height:44px}.header-actions{gap:6px}.section{padding:34px 0}.page-head{padding:32px 0 18px}.slant-feature{padding:22px;min-height:0}.slant-feature .media-slot{position:relative;right:auto;top:auto;width:100%;height:176px;clip-path:polygon(0 0,100% 0,92% 100%,0 100%);margin-top:18px}.timeline-item:first-child{display:block}.timeline-item:first-child .media-slot{height:180px;margin-bottom:14px}.ring-cards,.cards-2,.faq-mini,.memo-list,.weibu-rings,.contact-grid,.tri-period{grid-template-columns:1fr}.ring-card,.weibu-rings article{border-radius:12px;padding:22px 20px 22px 82px}.angled-page .intro-panel{padding:22px;min-height:0}.angled-page .intro-panel .media-slot{position:relative;right:auto;top:auto;width:100%;height:190px;clip-path:polygon(0 0,100% 0,92% 100%,0 100%);margin-top:16px}.angled-points{grid-template-columns:1fr}.topic-list article{grid-template-columns:1fr;gap:6px}.status-track article{grid-template-columns:1fr;gap:8px}.footer-grid{grid-template-columns:repeat(2,1fr)}.site-menu{top:20px;height:72vh;max-height:none}.menu-groups{grid-template-columns:1fr 1fr;gap:16px}.search-panel{inset:0;background:var(--ink);top:0;padding:calc(24px + env(safe-area-inset-top)) 16px 16px}.search-card{width:100%;margin:0;background:var(--ink);color:var(--paper);border:0;border-radius:0;box-shadow:none}.search-card strong,.search-card label{color:var(--paper)}.search-card .close-button{background:transparent;color:var(--paper);border-color:var(--paper)}.search-card input{background:#2a2539;color:var(--paper);border-color:rgba(255,255,255,.2)}.search-presets a{background:#2a2539;color:var(--paper);border-color:rgba(255,255,255,.15)}.mobile-bar{position:fixed;z-index:72;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(--line)}.mobile-bar a{min-height:48px;display:grid;place-items:center;font-size:13px}.mobile-bar a.is-current{background:var(--violet);color:var(--paper)}.app-images{align-items:center;flex-direction:column}.slot-app{height:min(320px,92vw)}.footer-inner{padding-bottom:10px}}
@media(max-width:420px){.header-actions .app-link{padding:0 9px}.menu-button{padding:0 9px}.menu-button i{margin-left:5px}.footer-grid{grid-template-columns:1fr 1fr}.menu-groups{grid-template-columns:1fr}.site-menu{height:34vh;min-height:230px;max-height:320px}.hero h1,.page-head h1{font-size:23px}}