*{box-sizing:border-box}
:root{--bg:#2B2C30;--deep:#1A1B1E;--surface:#34363C;--soft:#3E4046;--ink:#F2F2F4;--text:#D8D8DC;--muted:#A8A8B0;--subtle:#888890;--gold:#D4B06A;--sky:#7A92B0;--border:rgba(242,242,244,.12);--focus:rgba(212,176,106,.48);--shadow:0 12px 28px rgba(0,0,0,.28)}
html{scroll-behavior:smooth;background:var(--bg)}
body{margin:0;background:var(--bg);color:var(--text);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}body.is-locked{overflow:hidden}
a{color:inherit;text-decoration:none}button,input{font:inherit;color:inherit}button{cursor:pointer}img{display:block;max-width:100%;object-fit:contain;object-position:center}
.topline,.site-head,.main-ring{position:fixed;left:0;right:0;z-index:180}.topline{top:0;height:20px;background:var(--deep);border-bottom:1px solid var(--border);font-size:12px;color:var(--text)}
.topline-inner,.head-inner,.ring-inner,.site-main,.footer-inner{width:min(960px,calc(100% - 32px));margin:0 auto}.topline-inner{height:20px;display:flex;align-items:center;justify-content:space-between}.text-button,.menu-button,.close-button{border:0;background:transparent;min-height:44px}.text-button{min-height:20px;padding:0 2px;text-decoration:underline;text-underline-offset:3px}
.site-head{top:20px;height:54px;background:var(--surface);border-bottom:1px solid var(--focus)}.head-inner{height:54px;display:flex;align-items:center;justify-content:space-between}.brand-link{display:flex;align-items:center;gap:9px;min-height:44px;font-size:16px;font-weight:800}.brand-logo,.menu-logo-img,.footer-logo-img{height:24px;width:auto}.brand-media:has(img)+.brand-fallback{display:none}.head-actions{display:flex;gap:8px;align-items:center}.app-link,.menu-button{height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:8px;font-size:14px}.app-link{padding:0 14px;background:linear-gradient(135deg,var(--sky),var(--gold));color:var(--deep);font-weight:800}.menu-button{padding:0 13px;border:1px solid var(--focus);background:var(--deep)}
.main-ring{top:74px;height:46px;background:var(--deep);border-bottom:1px solid var(--border)}.ring-inner{height:46px;display:flex;align-items:center;justify-content:center;gap:24px}.ring-item{height:46px;display:inline-flex;flex-direction:column;align-items:center;justify-content:flex-start;gap:0;padding:0 8px;border-radius:6px;font-size:13px;line-height:10px}.ring-item>span:last-child{height:10px;line-height:10px}.ring-no{width:36px;height:36px;border-radius:6px;display:inline-flex;align-items:center;justify-content:center;color:var(--deep);background:var(--sky);font-weight:900}.ring-item:nth-child(even) .ring-no{background:var(--gold)}.ring-item.is-current .ring-no{outline:2px solid var(--gold);outline-offset:2px}.ring-item:hover,.ring-item:focus-visible{background:var(--soft)}
.site-main{padding-top:150px;padding-bottom:40px}h1,h2,h3,p{margin-top:0}h1{font-size:24px;line-height:1.3;color:var(--ink);margin-bottom:14px}h2{font-size:20px;line-height:1.4;color:var(--ink);margin-bottom:12px}h3{font-size:16px;line-height:1.5;color:var(--ink);margin-bottom:8px}p{margin-bottom:14px}.lead{font-size:16px;color:var(--muted);max-width:780px}.mini-label{display:inline-flex;align-items:center;gap:8px;font-size:12px;color:var(--muted);font-weight:800;letter-spacing:.06em;margin-bottom:9px}.mini-label:before{content:"";width:28px;height:3px;background:linear-gradient(90deg,var(--sky),var(--gold));border-radius:9px}
.hero{padding:18px 0 30px}.home-index{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}.home-index a{min-height:40px;display:inline-flex;align-items:center;gap:8px;padding:7px 12px;background:var(--surface);border:1px solid var(--border);border-radius:6px;font-size:13px}.home-index i{width:16px;height:16px;border-radius:4px;background:var(--gold)}.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}.btn{height:42px;padding:0 16px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:800}.btn-primary{background:linear-gradient(135deg,var(--sky),var(--gold));color:var(--deep)}.btn-secondary{background:var(--surface);border:1px solid var(--gold);color:var(--ink)}.btn:hover{transform:translateY(-1px)}.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--focus);outline-offset:2px}
.section{padding:28px 0;border-top:1px solid var(--border)}.section-soft{background:var(--soft);box-shadow:0 0 0 100vmax var(--soft);clip-path:inset(0 -100vmax)}.image-slot{background:var(--surface);border:1px solid var(--border);border-radius:8px;min-height:150px;display:flex;align-items:center;justify-content:center;overflow:hidden}.image-slot img{width:100%;height:100%;max-height:100%}.section-visual-176{height:176px;margin-bottom:16px}.section-visual-180{height:180px;margin-bottom:16px}.section-visual-210{height:210px;margin-bottom:18px}.section-visual-220{height:220px;margin-bottom:18px}.info-card,.faq-item,.policy-block,.topic-card{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:18px;box-shadow:var(--shadow)}
.vertical-cut-home{display:grid;grid-template-columns:minmax(180px,280px) 1fr;gap:24px;align-items:center}.vertical-media{height:200px;min-height:200px;position:relative}.vertical-media:after{content:"";position:absolute;right:0;top:0;bottom:0;width:10px;background:linear-gradient(var(--sky),var(--gold));clip-path:polygon(100% 0,100% 100%,0 90%,0 10%)}
.list-rows{display:grid;gap:12px}.list-row{display:grid;grid-template-columns:150px 1fr;gap:16px;align-items:start;padding:16px;background:var(--surface);border:1px solid var(--border);border-radius:8px}.list-row.no-media{grid-template-columns:1fr}.list-row .image-slot{height:120px;min-height:120px}.grid-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.grid-card{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:18px}.grid-card .image-slot{height:150px;min-height:150px;margin-bottom:12px}.rijia-head-image{height:180px;margin-bottom:16px}.rijia-grid,.ring-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.ring-card{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:18px;box-shadow:var(--shadow)}.ring-card .image-slot{height:150px;margin-bottom:12px}
.period-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.period-card{background:var(--surface);border-top:4px solid var(--gold);padding:16px;border-radius:8px;box-shadow:var(--shadow)}.period-card:nth-child(2){border-top-color:var(--sky)}.status-list{display:grid;gap:10px}.status-line{display:grid;grid-template-columns:120px 1fr auto;gap:12px;align-items:center;background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:12px 14px}.status-tag{font-size:12px;font-weight:800;background:var(--deep);border:1px solid var(--border);border-radius:6px;padding:5px 9px}
.left-right-app{display:grid;grid-template-columns:minmax(220px,320px) 1fr;gap:24px;align-items:center}.app-poster{height:320px;min-height:260px}.app-poster img{max-height:320px}.app-icon-slot{width:80px;height:80px;min-height:80px;margin-top:12px}.app-icon-slot img{width:48px;height:48px}.app-images{display:flex;gap:14px;align-items:center;flex-wrap:wrap}.text-wide{max-width:800px}.faq-mini{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.brand-block{display:grid;grid-template-columns:.8fr 1.2fr;gap:20px;align-items:center}.brand-block .image-slot{height:210px}
.page-head{padding:12px 0 24px}.breadcrumb{display:flex;gap:6px;align-items:center;font-size:12px;color:var(--subtle);margin-bottom:12px}.breadcrumb a{text-decoration:underline;text-underline-offset:3px}.timeline{position:relative;display:grid;gap:12px}.timeline-page .timeline-item{background:var(--surface);border:1px solid var(--border);border-left:4px solid var(--gold);border-radius:8px;padding:18px;box-shadow:var(--shadow)}.timeline-visual{height:180px;margin:10px 0 14px}
.slant-page .slant-section{display:grid;grid-template-columns:1.05fr .95fr;gap:20px;align-items:center;margin:20px 0}.slant-page .slant-section:nth-child(even){grid-template-columns:.95fr 1.05fr}.slant-page .slant-section:nth-child(even) .slant-media{order:2}.slant-media{min-height:220px;clip-path:polygon(0 7%,93% 0,100% 90%,7% 100%);border-radius:8px}.slant-home{display:grid;grid-template-columns:1.1fr .9fr;gap:20px;align-items:center}.slant-visual{height:176px}.ring-board{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.single-column{max-width:820px}.single-column .info-card{margin-bottom:14px}
.xun-layout{display:grid;gap:0;border:1px solid var(--border);border-radius:8px;overflow:hidden;background:var(--surface)}.xun-item{display:grid;grid-template-columns:140px 1fr;border-bottom:1px solid var(--border)}.xun-item:last-child{border-bottom:0}.xun-label{padding:20px;background:var(--deep);font-weight:900;color:var(--gold)}.xun-copy{padding:20px}.status-page .status-line{grid-template-columns:140px 1fr auto}.checklist{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.check-item{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:18px;position:relative}.check-item:before{content:"✓";position:absolute;right:16px;top:14px;width:26px;height:26px;border-radius:6px;display:flex;align-items:center;justify-content:center;background:var(--gold);color:var(--deep);font-weight:900}.method-steps{counter-reset:steps;display:grid;gap:14px}.method-step{counter-increment:steps;display:grid;grid-template-columns:52px 1fr;gap:14px;background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:16px}.method-step:before{content:counter(steps,decimal-leading-zero);width:46px;height:46px;border-radius:6px;display:flex;align-items:center;justify-content:center;background:var(--sky);color:var(--deep);font-weight:900}.special-list{display:grid;gap:12px}.special-item{display:grid;grid-template-columns:160px 1fr;gap:16px;background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:16px}.center-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.center-card{text-align:center;background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:22px 18px;box-shadow:var(--shadow)}.center-card p{text-align:left}.install-flow{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;counter-reset:install}.install-step{counter-increment:install;background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:16px}.install-step:before{content:counter(install);display:flex;width:28px;height:28px;border-radius:6px;align-items:center;justify-content:center;background:var(--sky);color:var(--deep);font-weight:900;margin-bottom:10px}.policy-stack{display:grid;gap:14px}.policy-block{border-left:4px solid var(--gold)}.policy-block:nth-child(even){border-left-color:var(--sky)}.help-grid,.contact-cards,.about-values{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.faq-list{display:grid;gap:12px}.faq-item h2{font-size:16px}.about-banner{height:200px;margin-bottom:20px}.about-banner img{height:200px;width:100%}
.site-footer{background:var(--deep);color:var(--text);font-size:13px;padding:28px 0 76px;border-top:1px solid var(--focus)}.footer-brand{display:flex;gap:10px;align-items:center;margin-bottom:20px}.footer-brand>div{display:flex;flex-direction:column}.footer-links{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.footer-links section{display:flex;flex-direction:column;gap:5px}.footer-links h2{font-size:13px;color:var(--gold);margin:0 0 5px}.footer-note{margin:22px 0 8px;color:var(--muted);max-width:860px}.footer-copy{margin:0;color:var(--subtle)}
.page-overlay{position:fixed;inset:0;background:rgba(0,0,0,.58);z-index:210;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.page-overlay.is-active{opacity:1;visibility:visible;pointer-events:auto}.drop-menu{position:fixed;left:24px;bottom:24px;z-index:240;width:280px;max-height:400px;overflow:auto;background:var(--surface);border:1px solid var(--focus);border-radius:10px;box-shadow:var(--shadow);transform:translateY(24px) scale(.97);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.drop-menu.is-open{transform:translateY(0) scale(1);opacity:1;visibility:visible;pointer-events:auto}.drop-menu-top{padding:12px 14px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border)}.menu-brand{display:flex;align-items:center;gap:8px}.close-button{padding:0 8px;font-weight:800}.menu-groups{padding:4px 14px 14px}.menu-groups section{border-top:1px solid var(--border);padding-top:8px;margin-top:8px}.menu-groups h2{font-size:13px;color:var(--gold);margin:0 0 6px}.menu-groups a{display:block;padding:5px 0}.menu-groups b{display:block;font-size:13px}.menu-groups span{display:block;font-size:12px;color:var(--subtle);line-height:1.45}
.search-panel{position:fixed;left:0;right:0;top:74px;z-index:235;visibility:hidden;pointer-events:none;transform:translateY(-16px);opacity:0;transition:.2s}.search-panel.is-open{visibility:visible;pointer-events:auto;transform:translateY(0);opacity:1}.search-card{width:min(760px,calc(100% - 32px));margin:0 auto;background:var(--surface);border:1px solid var(--border);border-radius:0 0 10px 10px;padding:18px;box-shadow:var(--shadow)}.search-head{display:flex;justify-content:space-between;gap:10px}.search-head p{font-size:13px;color:var(--muted);margin:2px 0}.search-label{display:block;font-size:12px;font-weight:800;margin:10px 0 5px}.search-card input{width:100%;height:44px;border:1px solid var(--border);border-radius:8px;background:var(--deep);color:var(--ink);padding:0 12px}.search-presets{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.search-presets a{min-height:40px;display:inline-flex;align-items:center;padding:6px 12px;border-radius:8px;background:var(--soft);border:1px solid var(--border)}.search-empty{font-size:13px;color:var(--muted);margin:12px 0 0}.mobile-bottom{display:none}
@media(max-width:760px){.main-ring{display:none}.site-main{padding-top:106px;padding-bottom:82px}.topline-inner,.head-inner,.site-main,.footer-inner{width:calc(100% - 32px)}.head-actions{gap:4px}.app-link{padding:0 10px}.menu-button{padding:0 9px}.vertical-cut-home,.left-right-app,.list-row,.grid-cards,.rijia-grid,.ring-cards,.period-row,.ring-board,.slant-page .slant-section,.slant-page .slant-section:nth-child(even),.help-grid,.contact-cards,.about-values,.checklist,.center-cards,.brand-block{grid-template-columns:1fr}.slant-page .slant-section:nth-child(even) .slant-media{order:0}.vertical-media{width:100%;max-width:280px}.status-line,.status-page .status-line{grid-template-columns:1fr}.xun-item{grid-template-columns:96px 1fr}.xun-label,.xun-copy{padding:15px}.special-item{grid-template-columns:1fr}.install-flow{grid-template-columns:1fr 1fr}.footer-links{grid-template-columns:1fr 1fr}.drop-menu{left:6%;bottom:64px;width:88%;max-height:62vh}.search-panel{top:0;bottom:0;background:var(--deep);padding:18px 0;overflow:auto}.search-card{border:0;border-radius:0;background:var(--deep);box-shadow:none;width:calc(100% - 32px)}.mobile-bottom{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;left:0;right:0;bottom:0;z-index:195;background:var(--surface);min-height:48px;padding-bottom:env(safe-area-inset-bottom);border-top:1px solid var(--border)}.mobile-bottom a{min-height:48px;display:flex;align-items:center;justify-content:center;font-size:13px}.mobile-bottom a.is-current{background:var(--gold);color:var(--deep);font-weight:900}.site-footer{padding-bottom:88px}}
@media(max-width:480px){.install-flow{grid-template-columns:1fr}.faq-mini{grid-template-columns:1fr}.footer-links{grid-template-columns:1fr 1fr}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

.vertical-page{display:grid;grid-template-columns:190px 1fr;gap:24px}.vertical-side{position:relative}.vertical-side .image-slot{height:200px;position:sticky;top:140px}.vertical-side:after{content:"";position:absolute;right:-10px;top:0;bottom:0;width:2px;background:linear-gradient(var(--sky),var(--gold))}.vertical-copy{display:grid;gap:14px}.vertical-copy article{background:var(--surface);border:1px solid var(--border);border-left:5px solid var(--sky);border-radius:8px;padding:18px}.vertical-copy article:nth-child(even){border-left-color:var(--gold)}
@media(max-width:760px){.vertical-page{grid-template-columns:1fr}.vertical-side:after{display:none}.vertical-side .image-slot{position:static;max-width:280px}}