:root{--bg:#E8F4F0;--deep:#C8E4DC;--paper:#F4FAF8;--soft:#DCEEE8;--title:#16382E;--text:#245044;--muted:#4A7468;--aux:#6A9488;--green:#2A8A72;--green2:#3AA88A;--gold:#C4A050;--line:rgba(22,56,46,.12);--strong-line:rgba(42,138,114,.48);--shadow:0 12px 28px rgba(22,56,46,.08);--radius:12px;--max:960px}
*{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}
body.ui-locked{overflow:hidden}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{cursor:pointer}
img{max-width:100%;display:block}
:focus-visible{outline:3px solid rgba(196,160,80,.65);outline-offset:3px}
.site-header{position:relative;z-index:50}
.top-strip{position:fixed;left:0;right:0;top:0;height:20px;background:var(--green);color:var(--paper);z-index:55;font-size:12px}
.top-strip__inner,.brand-bar__inner,.dot-nav__inner{width:min(var(--max),calc(100% - 32px));margin:0 auto}
.top-strip__inner{height:20px;display:flex;align-items:center;justify-content:space-between}
.top-search-trigger{position:relative;border:0;background:transparent;color:var(--paper);padding:0 2px;height:20px;font-size:12px}
.top-search-trigger:after{content:"";position:absolute;left:50%;top:50%;width:44px;height:44px;transform:translate(-50%,-50%)}
.brand-bar{position:fixed;left:0;right:0;top:20px;height:54px;background:var(--paper);border-bottom:1px solid var(--strong-line);z-index:54}
.brand-bar__inner{height:54px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand-home{min-height:44px;display:inline-flex;align-items:center;gap:10px;font-size:16px;font-weight:800;color:var(--title)}
.logo-slot{display:flex;align-items:center;justify-content:center;background:transparent}
.logo-slot--header,.logo-slot--drawer,.logo-slot--footer{height:24px;min-width:1px}
.brand-logo{height:24px;width:auto;object-fit:contain;object-position:center}
.logo-slot:empty{display:none}
.brand-home .logo-slot:not(:empty)+.brand-fallback{display:none}
.brand-actions{display:flex;align-items:center;gap:8px}
.app-link,.menu-trigger{height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;font-size:14px;white-space:nowrap}
.app-link{padding:0 14px;background:linear-gradient(135deg,var(--green) 0%,var(--green2) 100%);color:var(--paper)}
.menu-trigger{border:1px solid var(--strong-line);background:var(--paper);color:var(--title);padding:0 12px;gap:6px}
.dot-nav{position:fixed;top:74px;left:0;right:0;height:48px;background:var(--paper);z-index:53;border-bottom:1px solid var(--line)}
.dot-nav__inner{height:48px;display:flex;align-items:flex-end;justify-content:space-between;padding:0 38px 6px}
.dot-link{height:40px;min-width:72px;display:flex;align-items:center;justify-content:flex-end;flex-direction:column;gap:2px;color:var(--muted);font-size:13px;position:relative}
.dot-link--raised{transform:translateY(-4px)}
.dot-mark{width:10px;height:10px;background:var(--green);border-radius:50%;box-shadow:0 0 0 5px rgba(42,138,114,.08)}
.dot-link.is-current{font-weight:800;color:var(--title)}
.dot-link.is-current .dot-mark{width:14px;height:14px;background:var(--gold)}
.site-main{padding:150px 16px 54px;min-height:70vh}
.container{width:min(var(--max),100%);margin:0 auto}
h1,h2,h3{color:var(--title);margin-top:0}
h1{font-size:24px;line-height:1.3;margin-bottom:14px}
h2{font-size:20px;line-height:1.4;margin-bottom:12px}
h3{font-size:16px;line-height:1.45;margin-bottom:8px}
p{margin:0 0 14px}
.lead{font-size:16px;color:var(--muted);max-width:760px}
.kicker{display:inline-flex;align-items:center;gap:8px;font-size:12px;color:var(--green);font-weight:800;letter-spacing:.04em;margin-bottom:8px}
.kicker:before{content:"";width:18px;height:2px;background:var(--gold)}
.btn-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.btn{height:42px;display:inline-flex;align-items:center;justify-content:center;padding:0 18px;border-radius:10px;font-size:14px;white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,var(--green) 0%,var(--green2) 100%);color:var(--paper)}
.btn-secondary{background:var(--paper);border:1px solid var(--strong-line);color:var(--title)}
.btn:hover,.app-link:hover{transform:translateY(-1px);box-shadow:var(--shadow)}
.surface{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.section-block{margin:30px auto}
.media-slot{display:flex;align-items:center;justify-content:center;background:var(--paper);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.media-image{width:100%;height:100%;object-fit:contain;object-position:center}
.media-slot:empty:after{content:"";display:block;width:100%;height:100%;background:linear-gradient(145deg,rgba(42,138,114,.04),rgba(196,160,80,.03))}
/* home */
.home-intro{padding:24px 0 10px}
.mini-index{display:flex;gap:18px;flex-wrap:wrap;margin-bottom:22px}
.mini-index a{display:inline-flex;align-items:center;gap:8px;color:var(--muted);font-size:13px}
.mini-index i{width:10px;height:10px;border-radius:50%;background:var(--green);display:block}
.split-strip{display:grid;grid-template-columns:1.15fr .85fr;gap:14px;background:var(--soft);padding:14px;border-radius:14px}
.split-strip__text{padding:18px}
.split-strip__media{height:164px}
.vertical-records{display:grid;gap:12px;counter-reset:record}
.record-row{display:grid;grid-template-columns:110px 1fr;gap:18px;align-items:start;background:var(--paper);border-left:4px solid var(--green);border-radius:10px;padding:16px 18px;box-shadow:var(--shadow)}
.record-row:before{counter-increment:record;content:"0" counter(record);font-weight:800;color:var(--gold);font-size:26px;line-height:1}
.record-row.has-media{grid-template-columns:110px 180px 1fr}
.record-row .media-slot{height:120px}
.clipped-pair{display:grid;grid-template-columns:1fr 1fr;gap:16px;transform:rotate(-.3deg)}
.clipped-card{background:var(--paper);border:1px solid var(--line);padding:20px;border-radius:12px;box-shadow:var(--shadow);position:relative}
.clipped-card:after{content:"";position:absolute;width:18px;height:18px;background:var(--bg);right:-1px;bottom:-1px;clip-path:polygon(100% 0,0 100%,100% 100%)}
.clipped-card .media-slot{height:150px;margin-bottom:14px}
.archive-pair{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.archive-card{padding:22px;background:var(--deep);border-radius:14px;min-height:180px}
.archive-card:first-child{background:var(--paper);border:1px solid var(--line)}
.archive-card .media-slot{height:110px;margin-bottom:14px}
.periods{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.period{background:var(--paper);border-top:4px solid var(--green);border-radius:10px;padding:18px}
.status-list{display:grid;gap:10px}
.status-item{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:14px 16px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.status-tag{font-size:12px;border-radius:999px;padding:4px 10px;background:var(--soft);color:var(--title);white-space:nowrap}
.app-feature{display:grid;grid-template-columns:1.15fr .85fr;gap:20px;padding:22px;background:var(--paper);border-radius:14px;box-shadow:var(--shadow)}
.app-feature__media{height:300px}
.app-icon{width:48px;height:48px;object-fit:contain;margin-bottom:12px}
.article-points{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.article-point{padding:18px;background:var(--paper);border:1px solid var(--line);border-radius:12px}
.faq-mini{display:grid;gap:10px}
.faq-mini details{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:12px 14px}
.faq-mini summary{font-weight:700;color:var(--title);cursor:pointer}
.brand-story{padding:24px;background:var(--title);color:var(--bg);border-radius:14px}
.brand-story h2{color:var(--paper)}
/* inner layouts */
.page-head{margin-bottom:26px}
.page-head--center{text-align:center;max-width:760px;margin:0 auto 26px}
.page-head--band{padding:22px;background:var(--deep);border-radius:14px}
.page-head--line{border-bottom:1px solid var(--strong-line);padding-bottom:20px}
.vertical-log{display:grid;gap:14px;position:relative;padding-left:24px}
.vertical-log:before{content:"";position:absolute;left:6px;top:6px;bottom:6px;width:2px;background:var(--strong-line)}
.vertical-log article{background:var(--paper);padding:20px;border-radius:12px;position:relative;box-shadow:var(--shadow)}
.vertical-log article:before{content:"";position:absolute;left:-24px;top:24px;width:12px;height:12px;border-radius:50%;background:var(--green)}
.vertical-log .media-slot{height:220px;margin:14px 0}
.open-bars{display:grid;gap:14px}
.open-bar{display:grid;grid-template-columns:1fr 1fr;background:var(--paper);border-radius:12px;overflow:hidden;border:1px solid var(--line)}
.open-bar:nth-child(even) .open-bar__copy{order:2}
.open-bar__copy{padding:22px}
.open-bar__media{min-height:180px;background:var(--soft);display:flex;align-items:center;justify-content:center}
.clip-pages{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.clip-pages article{background:var(--paper);padding:22px;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow)}
.clip-pages article:nth-child(2n){transform:translateY(20px)}
.clip-pages .media-slot{height:210px;margin-bottom:14px}
.single-column{max-width:760px;margin:0 auto;display:grid;gap:16px}
.single-column section{background:var(--paper);border-radius:12px;padding:22px;border:1px solid var(--line)}
.single-column .media-slot{height:240px}
.three-periods{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.three-periods article{background:var(--paper);border-radius:12px;padding:20px;border-bottom:4px solid var(--green)}
.three-periods .media-slot{height:160px;margin-bottom:14px}
.timeline-status{display:grid;gap:12px}
.timeline-status article{display:grid;grid-template-columns:140px 1fr;gap:20px;background:var(--paper);border-radius:12px;padding:18px;border:1px solid var(--line)}
.timeline-status .state{font-weight:800;color:var(--green);border-right:1px solid var(--line)}
.timeline-status .media-slot{height:170px;margin-top:14px}
.memo-list{display:grid;gap:12px}
.memo-list article{display:grid;grid-template-columns:44px 1fr;gap:16px;background:var(--paper);border-radius:12px;padding:18px;box-shadow:var(--shadow)}
.memo-list .number{width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--green);color:var(--paper);font-weight:800}
.memo-list .media-slot{height:190px;margin-top:12px}
.method-sections{display:grid;gap:20px}
.method-sections section{padding:0 0 20px;border-bottom:1px solid var(--strong-line)}
.method-sections section:last-child{border-bottom:0}
.topic-list{display:grid;gap:12px}
.topic-list article{display:grid;grid-template-columns:160px 1fr;gap:18px;background:var(--paper);border-radius:12px;padding:18px;border:1px solid var(--line)}
.topic-list .topic-code{font-size:12px;color:var(--green);font-weight:800;letter-spacing:.08em}
.center-cards{display:grid;gap:16px;max-width:760px;margin:0 auto}
.center-card{text-align:center;background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:24px}
.center-card .media-slot{height:220px;margin:0 auto 16px}
.app-page{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:start}
.app-page__media{height:320px;position:sticky;top:142px}
.app-page__copy{display:grid;gap:14px}
.app-page__copy section{background:var(--paper);padding:20px;border-radius:12px}
.install-steps{counter-reset:step;display:grid;gap:14px}
.install-steps section{counter-increment:step;background:var(--paper);padding:20px 20px 20px 70px;border-radius:12px;position:relative}
.install-steps section:before{content:counter(step);position:absolute;left:18px;top:18px;width:36px;height:36px;border-radius:10px;background:var(--green);color:var(--paper);display:flex;align-items:center;justify-content:center;font-weight:800}
.terms{display:grid;gap:16px}
.terms section{background:var(--paper);border-left:4px solid var(--green);padding:20px;border-radius:10px}
.help-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.help-grid section{background:var(--paper);padding:20px;border-radius:12px;border:1px solid var(--line)}
.faq-list{display:grid;gap:12px;max-width:820px;margin:0 auto}
.faq-list details{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:16px 18px}
.faq-list summary{font-weight:800;color:var(--title);cursor:pointer}
.faq-list p{margin:12px 0 0}
.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.contact-grid section{background:var(--paper);padding:22px;border-radius:12px;border-top:4px solid var(--gold)}
.contact-note{padding:20px;background:var(--deep);border-radius:12px;margin-top:18px}
.about-banner{height:200px;margin-bottom:22px}
.about-story{display:grid;gap:20px}
.about-story section{background:var(--paper);padding:22px;border-radius:12px}
.about-story .brand-media{height:220px}
.notice-box{padding:16px 18px;background:var(--soft);border-left:4px solid var(--green);border-radius:10px}
.read-more{display:inline-flex;align-items:center;min-height:44px;color:var(--green);font-weight:700}
/* footer */
.site-footer{background:var(--title);color:var(--bg);border-top:1px solid rgba(244,250,248,.35);padding:34px 16px 80px;font-size:13px}
.footer-inner{width:min(var(--max),100%);margin:0 auto}
.footer-brand{display:flex;align-items:center;gap:12px;padding-bottom:18px;border-bottom:1px solid rgba(244,250,248,.2);margin-bottom:18px}
.footer-brand strong{display:block;color:var(--paper);font-size:16px}.footer-brand span{display:block;color:var(--bg);font-size:12px}
.footer-groups{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.footer-groups h2{font-size:13px;color:var(--paper);margin-bottom:8px}
.footer-groups a{display:block;min-height:30px;color:var(--bg)}
.footer-groups a:hover{text-decoration:underline}
.footer-note{margin-top:20px;padding-top:18px;border-top:1px solid rgba(244,250,248,.2);color:var(--bg)}
.footer-copy{margin-bottom:0;color:rgba(232,244,240,.78)}
/* drawer/search */
.page-overlay{position:fixed;inset:0;background:rgba(22,56,46,.34);opacity:0;visibility:hidden;pointer-events:none;transition:.2s ease;z-index:70}
.page-overlay.is-open{opacity:1;visibility:visible;pointer-events:auto}
.site-drawer{position:fixed;left:0;top:74px;width:36vw;max-width:430px;min-width:320px;max-height:calc(100vh - 90px);overflow:auto;background:var(--paper);border:1px solid var(--line);border-radius:0 14px 14px 0;box-shadow:var(--shadow);transform:translateX(-105%);visibility:hidden;pointer-events:none;transition:.24s ease;z-index:80;padding:16px}
.site-drawer.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}
.drawer-head{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:10px;margin-bottom:10px}
.drawer-brand{display:flex;align-items:center;gap:10px;color:var(--title)}
.drawer-close,.search-panel__head button{width:44px;height:44px;border:0;background:var(--soft);color:var(--title);border-radius:10px;font-size:24px}
.drawer-group{padding:8px 0;border-bottom:1px solid var(--line)}
.drawer-group:last-child{border-bottom:0}
.drawer-group h2{font-size:13px;color:var(--green);margin:0 0 6px}
.drawer-group a{display:grid;grid-template-columns:88px 1fr;gap:10px;padding:8px;border-radius:8px;min-height:44px}
.drawer-group a:hover{background:var(--soft)}
.drawer-group b{color:var(--title)}
.drawer-group span{font-size:12px;color:var(--muted)}
.search-panel{position:fixed;top:74px;left:50%;width:min(720px,calc(100% - 32px));transform:translate(-50%,-12px);background:var(--paper);border-radius:0 0 14px 14px;box-shadow:var(--shadow);z-index:81;opacity:0;visibility:hidden;pointer-events:none;transition:.2s ease;padding:20px}
.search-panel.is-open{transform:translate(-50%,0);opacity:1;visibility:visible;pointer-events:auto}
.search-panel__head{display:flex;align-items:center;justify-content:space-between;gap:16px}
.search-panel__head h2{margin-bottom:0}
.search-panel label{display:block;color:var(--muted);margin:10px 0 8px}
.search-panel input{width:100%;height:46px;border:1px solid var(--strong-line);border-radius:10px;background:#fff;color:var(--title);padding:0 14px}
.search-presets{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.search-presets a{min-height:38px;display:inline-flex;align-items:center;padding:0 12px;border-radius:999px;background:var(--soft);color:var(--title)}
.search-results{display:grid;gap:8px;margin-top:12px;color:var(--muted)}
.search-results a{display:grid;grid-template-columns:80px 1fr;gap:10px;background:var(--soft);padding:10px 12px;border-radius:10px}
.mobile-bottom{display:none}
/* responsive */
@media (max-width:760px){
    .dot-nav{display:none}
    .site-main{padding-top:98px;padding-bottom:82px}
    .top-strip__inner,.brand-bar__inner{width:calc(100% - 32px)}
    .brand-home{min-width:0}.brand-fallback{font-size:16px}.brand-actions{gap:6px}
    .app-link{padding:0 10px}.menu-trigger{padding:0 10px}.menu-trigger span:last-child{display:none}
    .site-drawer{top:74px;width:88vw;min-width:0;max-width:none;max-height:calc(100vh - 88px)}
    .search-panel{inset:0;width:100%;height:100%;transform:none!important;border-radius:0;background:var(--green);color:var(--paper);padding:24px 16px 80px;overflow:auto}
    .search-panel.is-open{opacity:1}.search-panel__head h2,.search-panel label{color:var(--paper)}
    .search-panel__head button{background:var(--paper)}
    .search-panel input{background:var(--paper)}
    .search-presets a,.search-results a{background:var(--paper);color:var(--title)}
    .mobile-bottom{position:fixed;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);z-index:60}
    .mobile-bottom a{display:flex;align-items:center;justify-content:center;min-height:48px;font-size:13px;color:var(--muted)}
    .mobile-bottom a.is-current{background:var(--green);color:var(--paper);font-weight:800}
    .site-footer{padding-bottom:92px}
    .split-strip,.app-feature,.app-page,.open-bar{grid-template-columns:1fr}
    .split-strip__media{height:164px}.record-row,.record-row.has-media{grid-template-columns:44px 1fr}.record-row.has-media .media-slot{grid-column:2}
    .clipped-pair,.archive-pair,.clip-pages,.three-periods,.article-points,.help-grid,.contact-grid,.footer-groups{grid-template-columns:1fr}
    .periods{grid-template-columns:1fr}
    .clip-pages article:nth-child(2n){transform:none}
    .timeline-status article,.topic-list article{grid-template-columns:1fr}
    .timeline-status .state{border-right:0;border-bottom:1px solid var(--line);padding-bottom:8px}
    .app-page__media{position:static;height:300px}
    .footer-groups{gap:10px}.footer-groups section{border-bottom:1px solid rgba(244,250,248,.14);padding-bottom:8px}
}
@media (max-width:420px){
    .app-link{font-size:13px}.brand-bar__inner{gap:8px}.brand-home{max-width:128px}
    .record-row,.record-row.has-media{padding:14px 12px;gap:10px}
    .drawer-group a{grid-template-columns:74px 1fr}
}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

.home-xun-media{height:180px;margin-bottom:14px}
.home-wenli-media{height:170px;margin-bottom:14px}
.surface-pad{padding:22px}