:root{
  --bg:#0C100E; --bg-deep:#080A09; --surface:#141A16; --surface-2:#1A2420;
  --title:#E8F6EE; --text:#CDE3D6; --muted:#8FB3A0; --soft:#6E8F7E;
  --brand:#2A9D5C; --bright:#3CB371; --deep:#146B3A; --sand:#EFE6D2;
  --border:rgba(42,157,92,.18); --border-strong:rgba(42,157,92,.45);
  --shadow:0 12px 28px rgba(8,10,9,.35); --r:10px; --max:960px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--bg)}
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}
.wrap{width:min(calc(100% - 32px),var(--max));margin:0 auto}
.site-top{position:fixed;z-index:50;top:0;left:0;right:0;background:var(--bg-deep)}
.domain-edge{height:20px;background:var(--bg-deep);color:var(--bright);font-size:12px;border-bottom:1px solid var(--border)}
.edge-inner,.head-inner,.tabs-inner{height:100%;display:flex;align-items:center;justify-content:space-between}
.text-trigger,.menu-trigger,.icon-close{border:0;background:transparent;color:var(--text);min-height:44px;padding:0 10px}
.domain-edge .text-trigger{color:var(--bright);min-height:20px;padding:0}
.domain-head{height:54px;border-bottom:1px solid var(--border-strong);background:var(--bg-deep)}
.brand-link{display:inline-flex;align-items:center;min-height:44px}
.brand-logo,.footer-logo{height:24px;width:auto;object-fit:contain;object-position:center}
.brand-text{font-size:16px;font-weight:700;color:var(--title)}
.head-actions{display:flex;align-items:center;gap:8px}
.head-app,.menu-trigger{min-height:44px;display:inline-flex;align-items:center;padding:0 12px;border-radius:8px}
.head-app{border:1px solid var(--border-strong);color:var(--text)}
.menu-trigger{border:1px solid var(--border);background:var(--surface);color:var(--sand)}
.domain-tabs{height:44px;border-bottom:1px solid var(--border);background:var(--bg-deep)}
.tabs-inner{justify-content:flex-start;gap:10px}
.domain-tab{width:88px;height:22px;border:1px solid var(--border-strong);border-radius:999px;display:inline-flex;align-items:center;justify-content:center;font-size:13px;color:var(--text)}
.domain-tab.is-active{background:var(--brand);color:#08110C;border-color:var(--brand)}
.site-main{padding-top:118px;padding-bottom:30px;min-height:72vh}
.page-shell{padding:34px 0 18px}
.eyebrow{font-size:12px;letter-spacing:.16em;color:var(--bright);text-transform:uppercase;margin:0 0 8px}
h1,h2,h3{margin-top:0;color:var(--title);line-height:1.3}
h1{font-size:24px;margin-bottom:14px} h2{font-size:20px;margin-bottom:12px} h3{font-size:16px;margin-bottom:8px}
p{margin:0 0 12px}.lead{font-size:16px;color:var(--sand)}
.section{padding:26px 0;border-bottom:1px solid var(--border)}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);padding:18px;box-shadow:var(--shadow)}
.subtle{color:var(--muted)}.soft{color:var(--soft)}
.btn-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.btn-primary,.btn-secondary{min-height:42px;padding:0 18px;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;line-height:1;white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,#3CB371 0%,#2A9D5C 55%,#146B3A 100%);color:#08110C;font-weight:700}
.btn-secondary{background:var(--bg-deep);border:1px solid var(--border-strong);color:var(--text)}
a:hover,.text-trigger:hover,.menu-trigger:hover,.icon-close:hover{filter:brightness(1.12)}
a:focus-visible,button:focus-visible{outline:2px solid var(--bright);outline-offset:3px}
.media-slot{width:100%;background:var(--bg-deep);border:1px solid var(--border);border-radius:var(--r);display:flex;align-items:center;justify-content:center;overflow:hidden}
.media-slot img{width:100%;height:100%;object-fit:contain;object-position:center}
.media-176{height:176px}.media-168{height:168px}.media-160{height:160px}.media-200{height:200px}.media-app{height:320px;width:240px;max-width:100%}
.index-kicker{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}
.index-kicker a{font-size:13px;padding:4px 12px;border:1px solid var(--border-strong);border-radius:999px;color:var(--text)}
.cut-stage{display:grid;grid-template-columns:minmax(0,1fr);gap:14px}.cut-caption{max-width:720px}
.narrow-pair{display:grid;grid-template-columns:1.08fr .92fr;gap:14px;align-items:stretch}.narrow-pair article{padding:16px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r)}
.page-pair{display:grid;grid-template-columns:1fr 1fr;gap:14px}.page-pair .card{min-height:210px}
.line-list{display:grid;gap:10px}.line-item{padding:14px 0;border-top:1px solid var(--border)}.line-item:first-child{border-top:0}
.lesson-list{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:12px}.lesson-list div{padding:14px;border:1px solid var(--border);border-radius:var(--r);background:var(--surface-2)}
.status-list{display:grid;gap:10px}.status-row{display:flex;gap:14px;align-items:flex-start;padding:14px;border:1px solid var(--border);border-radius:var(--r);background:var(--surface)}.status-tag{flex:0 0 auto;font-size:12px;padding:3px 8px;border-radius:999px;background:var(--brand);color:#08110C;font-weight:700}
.app-wrap{display:grid;grid-template-columns:1fr 240px;gap:24px;align-items:center}.app-art{display:grid;gap:10px;justify-items:center}.app-icon{width:48px;height:48px;object-fit:contain;border-radius:10px;background:var(--bg-deep);border:1px solid var(--border)}
.legal-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.faq-short{display:grid;gap:10px}.faq-short details{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);padding:14px}.faq-short summary{cursor:pointer;color:var(--title);font-weight:700}
.brand-note{padding:20px;border-left:3px solid var(--brand);background:var(--surface)}
/* 内页版式 */
.layout-domain-index .index-rail{display:flex;gap:8px;overflow-x:auto;padding-bottom:8px}.layout-domain-index .index-rail span{white-space:nowrap;border:1px solid var(--border);border-radius:999px;padding:4px 10px;color:var(--muted)}
.layout-double-narrow .double-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.layout-double-narrow .double-grid>div{display:grid;gap:12px;align-content:start}
.layout-cut .cut-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:16px}.layout-cut .cut-aside{border-left:1px solid var(--border);padding-left:16px}
.layout-page .page-stack{display:grid;gap:12px}.layout-page .page-band{display:grid;grid-template-columns:170px 1fr;gap:18px;align-items:start;padding:18px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r)}
.layout-wrap .wrap-article{position:relative}.layout-wrap .float-media{float:right;margin:0 0 14px 20px}
.term-table{display:grid;grid-template-columns:180px 1fr;border:1px solid var(--border);border-radius:var(--r);overflow:hidden}.term-table div{padding:12px;border-bottom:1px solid var(--border)}.term-table div:nth-child(odd){background:var(--surface-2);color:var(--sand);font-weight:700}.term-table div:nth-last-child(-n+2){border-bottom:0}
.timeline{display:grid;gap:12px}.timeline article{padding:16px 16px 16px 22px;border-left:3px solid var(--brand);background:var(--surface);border-radius:0 var(--r) var(--r) 0}
.character-strip{display:grid;grid-template-columns:140px 1fr auto;gap:14px;align-items:center;padding:16px;border-bottom:1px solid var(--border)}.character-strip:last-child{border-bottom:0}.data-state{font-size:12px;color:var(--sand);border:1px solid var(--border-strong);padding:4px 8px;border-radius:999px}
.shot-list{counter-reset:shot;display:grid;gap:10px}.shot-list article{counter-increment:shot;display:grid;grid-template-columns:52px 1fr;gap:14px;padding:16px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r)}.shot-list article:before{content:counter(shot,decimal-leading-zero);color:var(--bright);font-weight:800;font-size:20px}
.class-list{display:grid;gap:12px}.class-row{display:grid;grid-template-columns:150px 1fr;gap:18px;padding:16px;border-top:1px solid var(--border)}
.sound-bars{display:grid;gap:12px}.sound-bar{display:grid;grid-template-columns:130px 1fr;gap:16px;align-items:center}.sound-bar span:first-child{color:var(--sand)}.sound-meter{height:8px;border-radius:999px;background:var(--surface-2);overflow:hidden}.sound-meter i{display:block;height:100%;background:linear-gradient(90deg,var(--deep),var(--bright));border-radius:999px}
.topic-index{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.topic-index a{min-height:120px;padding:18px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r);display:flex;flex-direction:column;justify-content:space-between}.topic-index b{color:var(--title)}
.article-list{display:grid;gap:14px}.article-list article{padding:18px;border:1px solid var(--border);border-radius:var(--r);background:linear-gradient(180deg,var(--surface),var(--bg-deep))}
.terms section{padding:18px 0;border-bottom:1px solid var(--border)}
.contact-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.contact-cards article{padding:18px;border:1px solid var(--border);border-radius:var(--r);background:var(--surface)}
.site-footer{background:#050706;border-top:1px solid var(--border-strong);padding:24px 0 calc(72px + env(safe-area-inset-bottom));font-size:13px;color:var(--text)}
.footer-brand-row{padding-bottom:18px}.footer-brand{display:flex;align-items:center;gap:10px}.footer-brand div{display:flex;flex-direction:column;line-height:1.25}.footer-brand strong{font-size:16px;color:var(--title)}.footer-brand span{color:var(--muted);font-size:12px}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.footer-grid section{display:grid;align-content:start;gap:7px}.footer-grid h2{font-size:13px;color:var(--sand);margin:0 0 4px}.footer-grid a{color:var(--muted)}.footer-note{margin-top:20px;padding-top:16px;border-top:1px solid var(--border)}.footer-note p{color:var(--soft);margin-bottom:8px}
.overlay{position:fixed;inset:0;z-index:70;background:rgba(0,0,0,.58);opacity:0;pointer-events:none;transition:.18s}.overlay.is-on{opacity:1;pointer-events:auto}
.side-menu{position:fixed;z-index:80;top:20px;right:16px;width:min(32vw,420px);max-height:76vh;background:var(--surface);border:1px solid var(--border-strong);border-radius:12px;box-shadow:var(--shadow);transform:translateX(calc(100% + 40px));visibility:hidden;pointer-events:none;transition:.22s;overflow:hidden}.side-menu.is-open{transform:none;visibility:visible;pointer-events:auto}.menu-top{height:62px;padding:0 12px 0 16px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border)}.menu-brand{display:flex;align-items:center;gap:10px}.menu-brand img{height:24px;width:auto;object-fit:contain}.menu-brand div{display:flex;flex-direction:column;line-height:1.2}.menu-brand span{font-size:11px;color:var(--muted)}.menu-scroll{padding:14px;overflow:auto;max-height:calc(76vh - 62px)}.menu-group{margin-bottom:14px}.menu-group h2{font-size:12px;color:var(--bright);margin-bottom:6px}.menu-group a{display:block;padding:9px 10px;border-radius:8px}.menu-group a:hover{background:var(--surface-2)}.menu-group b,.menu-group span{display:block}.menu-group b{font-size:14px;color:var(--title)}.menu-group span{font-size:12px;color:var(--muted)}
.search-panel{position:fixed;z-index:81;top:74px;left:50%;width:min(calc(100% - 32px),760px);transform:translate(-50%,-24px);opacity:0;visibility:hidden;pointer-events:none;transition:.18s}.search-panel.is-open{transform:translate(-50%,0);opacity:1;visibility:visible;pointer-events:auto}.search-card{background:var(--bg-deep);border:1px solid var(--border-strong);border-radius:12px;padding:18px;box-shadow:var(--shadow)}.search-top{display:flex;justify-content:space-between;align-items:center}.search-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.search-links a{padding:8px 12px;border:1px solid var(--border);border-radius:999px;color:var(--text)}
.mobile-bottom{display:none}
@media (max-width:760px){
  .site-main{padding-top:74px;padding-bottom:70px}.domain-tabs{display:none}.wrap{width:calc(100% - 32px)}
  .domain-edge{height:20px}.domain-head{height:54px}.head-actions{gap:4px}.head-app,.menu-trigger{padding:0 10px}
  .narrow-pair,.page-pair,.lesson-list,.legal-grid,.footer-grid,.layout-double-narrow .double-grid,.layout-cut .cut-grid,.topic-index,.contact-cards{grid-template-columns:1fr}
  .layout-cut .cut-aside{border-left:0;border-top:1px solid var(--border);padding-left:0;padding-top:14px}
  .layout-page .page-band,.class-row,.sound-bar,.character-strip{grid-template-columns:1fr}
  .app-wrap{grid-template-columns:1fr}.app-art{justify-items:start}.media-app{width:min(240px,100%)}
  .layout-wrap .float-media{float:none;margin:0 0 14px 0;width:100%}
  .term-table{grid-template-columns:1fr}.term-table div:nth-child(odd){border-bottom:0}.term-table div:nth-last-child(-n+2){border-bottom:1px solid var(--border)}.term-table div:last-child{border-bottom:0}
  .side-menu{top:12px;right:12px;width:88%;max-height:82vh}.menu-scroll{max-height:calc(82vh - 62px)}
  .search-panel{inset:0;width:auto;transform:translateY(-10px);background:var(--bg-deep)}.search-panel.is-open{transform:none}.search-card{min-height:100%;border:0;border-radius:0;padding:28px 16px}
  .site-footer{padding-bottom:calc(72px + env(safe-area-inset-bottom))}
  .mobile-bottom{position:fixed;z-index:60;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(--bg-deep);border-top:1px solid var(--border-strong)}
  .mobile-bottom a{display:flex;align-items:center;justify-content:center;font-size:13px;color:var(--text)}.mobile-bottom a.is-active{background:var(--brand);color:#08110C;font-weight:700}
}