*{box-sizing:border-box}
:root{
    --bg:#EFE6D0;--deep:#DDD2B6;--paper:#F7F1E0;--soft:#E8DDC4;
    --ink:#12100A;--text:#262014;--muted:#564A30;--assist:#766844;
    --darkgold:#4A3A12;--gold:#A88830;
    --line:rgba(18,16,10,.12);--strong:rgba(74,58,18,.50);
    --shadow:0 12px 28px rgba(18,16,10,.10)
}
html{background:var(--bg);scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:"Microsoft YaHei","PingFang SC","Noto Sans SC",Arial,sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}
body.lock-scroll{overflow:hidden}
a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}img{display:block;max-width:100%}
.shell{width:min(960px,calc(100% - 32px));margin:0 auto}
.site-head{position:fixed;z-index:80;top:0;left:0;right:0}
.liao-edge{height:20px;background:var(--ink);color:var(--gold);font-size:12px}
.liao-edge-inner{height:20px;display:flex;align-items:center;justify-content:space-between}
.edge-search{height:20px;min-width:44px;padding:0 4px;border:0;background:transparent;color:var(--gold)}
.ink-head{height:54px;background:var(--paper);border-bottom:1px solid var(--strong)}
.ink-head-inner{height:54px;display:flex;align-items:center;justify-content:space-between}
.brand{height:44px;min-width:70px;display:flex;align-items:center}
.brand img,.fold-brand img,.footer-brand img{height:24px;width:auto;object-fit:contain;object-position:center}
.brand strong{font-size:16px;color:var(--ink)}
.head-actions{display:flex;align-items:center;gap:8px}
.head-link,.fold-button,.btn-main,.btn-alt{height:42px;min-width:72px;padding:0 14px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;border-radius:0}
.head-link,.fold-button,.btn-alt{background:var(--paper);border:1px solid var(--darkgold);color:var(--ink)}
.btn-main{background:linear-gradient(135deg,#12100A 0%,#A88830 100%);color:var(--paper);border:1px solid transparent}
.seal-nav{height:48px;background:var(--paper);border-bottom:1px solid var(--line)}
.seal-nav-inner{height:48px;display:flex;align-items:center;justify-content:center;gap:28px}
.seal-nav a{height:48px;min-width:82px;display:flex;align-items:center;justify-content:center;gap:8px;font-size:13px;color:var(--muted)}
.seal-nav i{width:18px;height:18px;border:1px solid var(--darkgold);border-radius:50%;display:block}
.seal-nav a.is-current{color:var(--ink);font-weight:700}
.seal-nav a.is-current i{background:var(--gold)}
.site-main{padding-top:146px;min-height:70vh}
.page-head{padding:28px 0 20px}
.eyebrow{font-size:12px;letter-spacing:.16em;color:var(--darkgold);font-weight:800;margin-bottom:6px;display:inline-block}
h1{font-size:24px;line-height:1.3;color:var(--ink);margin:0 0 14px}
h2{font-size:20px;line-height:1.4;color:var(--ink);margin:0 0 10px}
h3{font-size:16px;line-height:1.45;color:var(--ink);margin:0 0 8px}
p{margin:0 0 14px}.lead{font-size:16px;color:var(--muted);max-width:780px}
.section{padding:30px 0;border-top:1px solid var(--line)}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:14px;margin-bottom:16px}
.section-head small{font-size:12px;color:var(--assist)}
.media-slot{min-height:130px;background:var(--paper);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;overflow:hidden}
.media-slot img{width:100%;height:100%;object-fit:contain;object-position:center}
.media-slot.slim{min-height:110px}.media-slot.tall{height:300px}.media-slot.banner{height:200px}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--gold);outline-offset:3px}
.head-link:hover,.fold-button:hover,.btn-main:hover,.btn-alt:hover{box-shadow:0 6px 14px rgba(18,16,10,.10);transform:translateY(-1px)}
.search-panel{position:fixed;z-index:95;top:74px;left:0;right:0;background:var(--paper);border-bottom:1px solid var(--strong);box-shadow:var(--shadow);visibility:hidden;opacity:0;pointer-events:none;transform:translateY(-10px);transition:.2s}
.search-open .search-panel{visibility:visible;opacity:1;pointer-events:auto;transform:none}
.search-inner{padding:18px 0 20px}.search-title{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.close-control{min-height:42px;padding:0 14px;border:1px solid var(--strong);background:var(--paper);color:var(--ink)}
.search-inner label{display:block;color:var(--muted);margin-bottom:8px}
.search-inner input{width:100%;height:44px;border:1px solid var(--strong);background:#fffaf0;color:var(--ink);padding:0 12px;border-radius:0}
.search-presets{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.search-presets a{min-height:40px;padding:8px 12px;border:1px solid var(--darkgold);display:flex;align-items:center}
.search-status{font-size:13px;color:var(--assist);margin-top:10px}
.site-fold{position:fixed;z-index:100;right:18px;bottom:22px;width:260px;max-height:360px;overflow:auto;background:var(--paper);border:1px solid var(--strong);box-shadow:var(--shadow);visibility:hidden;opacity:0;pointer-events:none;transform:translate(18px,18px) scale(.96);transform-origin:right bottom;transition:.22s}
.fold-open .site-fold{visibility:visible;opacity:1;pointer-events:auto;transform:none}
.fold-head{position:sticky;top:0;z-index:2;background:var(--paper);padding:12px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}
.fold-brand{display:flex;align-items:center;gap:8px}.fold-brand div{display:flex;flex-direction:column;line-height:1.2}.fold-brand span{font-size:10px;color:var(--assist);letter-spacing:.12em}
.fold-content{padding:4px 12px 12px}.fold-content section{padding:8px 0;border-bottom:1px solid var(--line)}.fold-content section:last-child{border-bottom:0}
.fold-content h2{font-size:13px;color:var(--darkgold);margin-bottom:5px}
.fold-content a{display:grid;grid-template-columns:68px 1fr;gap:6px;padding:7px 4px}.fold-content a:hover{background:var(--soft)}.fold-content b{color:var(--ink)}.fold-content span{font-size:12px;color:var(--muted)}
.page-mask{position:fixed;z-index:90;inset:0;background:rgba(18,16,10,.40);visibility:hidden;opacity:0;pointer-events:none;transition:.2s}
.fold-open .page-mask,.search-open .page-mask{visibility:visible;opacity:1;pointer-events:auto}
.site-footer{margin-top:50px;background:var(--ink);color:var(--bg);border-top:1px solid var(--gold);padding:26px 0 18px;font-size:13px}
.footer-grid{display:grid;grid-template-columns:170px 1fr;gap:30px}.footer-brand{display:flex;flex-direction:column;align-items:flex-start;gap:6px}.footer-brand strong{font-size:16px}.footer-brand span{font-size:11px;color:var(--gold);letter-spacing:.14em}
.footer-links{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.footer-links h2{font-size:13px;color:var(--gold);margin-bottom:8px}.footer-links a{display:block;padding:4px 0}
.footer-note{margin-top:20px;padding-top:14px;border-top:1px solid rgba(168,136,48,.3);color:#d7caa9}.footer-note p{margin-bottom:6px}
.mobile-bar{display:none}

/* 首页 */
.home-intro{padding:26px 0 30px}
.home-seal-row{display:flex;align-items:center;gap:10px;margin-bottom:18px}.home-seal-row i{width:18px;height:18px;border:1px solid var(--darkgold);border-radius:50%;background:var(--gold)}
.home-seal-row a{font-size:12px;color:var(--darkgold);border-bottom:1px solid var(--strong)}
.home-intro-copy{max-width:760px}
.stagger-panel{display:grid;grid-template-columns:.9fr 1.1fr;min-height:250px;background:var(--soft);border-top:1px solid var(--strong);border-bottom:1px solid var(--strong)}
.stagger-media{height:172px;align-self:end;background:var(--paper);clip-path:polygon(0 14%,84% 0,100% 100%,0 100%)}.stagger-media img{width:100%;height:100%;object-fit:contain}
.stagger-copy{padding:28px 24px}
.narrow-pair{display:grid;grid-template-columns:340px 1fr;gap:18px;align-items:start}.narrow-pair article{background:var(--paper);border:1px solid var(--line);padding:18px}.narrow-pair .media-slot{margin-top:12px}
.fold-spines{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--strong)}.fold-spines article{background:var(--paper);padding:20px;min-height:190px}.fold-spines article:first-child{border-right:8px double var(--darkgold)}
.rack-top{display:grid;grid-template-columns:1fr 210px;gap:16px;align-items:center;margin-bottom:14px}.rack-cards{display:grid;grid-template-columns:1fr 1fr;gap:14px}.rack-cards article{background:var(--paper);border:1px solid var(--line);padding:18px}
.period-row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.period-row article{background:var(--ink);color:var(--bg);padding:18px}.period-row h3{color:var(--gold)}
.status-list{display:grid;gap:8px}.status-item{display:grid;grid-template-columns:120px 1fr 100px;gap:12px;align-items:center;background:var(--paper);border:1px solid var(--line);padding:12px}.badge{justify-self:end;border:1px solid var(--darkgold);color:var(--darkgold);padding:3px 10px;font-size:12px}
.app-wrap{background:var(--ink);color:var(--bg);padding:22px}.app-wrap h2{color:var(--gold)}.app-media-wrap{margin:14px 0;display:grid;grid-template-columns:1fr 110px;gap:14px}.app-media-wrap .media-slot{background:var(--paper);border-color:rgba(168,136,48,.5)}
.point-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.point-grid article{background:var(--paper);border:1px solid var(--line);padding:18px}
.home-faq{display:grid;grid-template-columns:1fr 1fr;gap:10px}.home-faq details{background:var(--paper);border:1px solid var(--line);padding:13px 14px}.home-faq summary{font-weight:700;color:var(--ink);cursor:pointer}.home-faq p{margin-top:8px}
.brand-box{background:var(--paper);border:1px solid var(--strong);padding:20px;box-shadow:var(--shadow)}

/* 内页不同版式 */
.narrow-page{max-width:760px;margin:0 auto}.narrow-page .narrow-block{background:var(--paper);border-left:5px solid var(--darkgold);padding:20px;margin-bottom:14px}
.offset-page{display:grid;gap:15px}.offset-page article{display:grid;grid-template-columns:1fr 260px;background:var(--paper);border:1px solid var(--line)}.offset-page article:nth-child(even){grid-template-columns:260px 1fr}.offset-page article:nth-child(even) .offset-copy{order:2}.offset-copy{padding:20px}.offset-page .offset-media{min-height:210px;background:var(--soft)}
.spine-page{display:grid;gap:12px}.spine-page article{display:grid;grid-template-columns:105px 1fr;background:var(--paper);border:1px solid var(--line)}.spine-page .spine-label{background:var(--ink);color:var(--gold);padding:18px;font-weight:700}.spine-page .spine-copy{padding:18px}
.linear-flow{position:relative;padding-left:26px}.linear-flow:before{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:1px;background:var(--strong)}.linear-flow section{position:relative;padding:0 0 22px 18px}.linear-flow section:before{content:"";position:absolute;left:-24px;top:6px;width:10px;height:10px;border:2px solid var(--darkgold);border-radius:50%;background:var(--bg)}
.three-periods{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.three-periods article{background:var(--paper);border-top:5px solid var(--darkgold);padding:18px}
.state-board{display:grid;gap:10px}.state-board article{display:grid;grid-template-columns:1fr 120px;gap:14px;align-items:center;background:var(--paper);border:1px solid var(--line);padding:16px}
.memo-list{display:grid;grid-template-columns:1fr 1fr;gap:12px}.memo-list section{background:var(--paper);border:1px solid var(--line);padding:18px}.memo-list ul,.method-list ul{padding-left:20px}
.method-list{display:grid;gap:12px}.method-list article{background:var(--paper);border:1px solid var(--line);padding:20px}
.topic-list{display:grid;gap:12px}.topic-list article{display:grid;grid-template-columns:150px 1fr;background:var(--paper);border:1px solid var(--line)}.topic-list strong{display:flex;align-items:center;justify-content:center;background:var(--soft);padding:16px;color:var(--darkgold);font-size:16px}.topic-copy{padding:18px}
.center-cards{max-width:760px;margin:0 auto;display:grid;gap:14px}.center-cards article{background:var(--paper);border:1px solid var(--strong);padding:22px;text-align:center}.center-cards p{text-align:left}
.app-copy{background:var(--paper);border:1px solid var(--line);padding:22px}.app-content-media{display:grid;grid-template-columns:1fr 110px;gap:14px;margin:14px 0}
.terms section{padding:20px 0;border-bottom:1px solid var(--line)}.terms section:last-child{border-bottom:0}
.help-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.help-grid article{background:var(--paper);border:1px solid var(--line);padding:18px}
.faq-page details{background:var(--paper);border:1px solid var(--line);padding:14px 16px;margin-bottom:10px}.faq-page summary{font-weight:800;color:var(--ink);cursor:pointer}.faq-page p{margin-top:9px}
.about-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:14px}.about-grid section{background:var(--paper);border:1px solid var(--line);padding:20px}

@media(max-width:760px){
    .site-main{padding-top:92px;padding-bottom:60px}.seal-nav{display:none}
    .site-fold{width:88%;right:6%;bottom:58px;max-height:72vh}
    .search-panel{top:0;bottom:0;background:var(--ink);color:var(--gold);overflow:auto}.search-inner{padding-top:28px}.search-inner label,.search-status{color:#d7caa9}.search-inner input{background:var(--paper);color:var(--ink)}.search-presets a{color:var(--bg);border-color:var(--gold)}.search-panel .close-control{background:transparent;color:var(--bg);border-color:var(--gold)}
    .footer-grid{grid-template-columns:1fr}.footer-links{grid-template-columns:1fr 1fr}
    .mobile-bar{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;z-index:70;left:0;right:0;bottom:0;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:var(--ink);border-top:1px solid var(--gold)}.mobile-bar a{min-height:48px;display:flex;align-items:center;justify-content:center;color:var(--bg);font-size:13px}.mobile-bar a.is-current{background:var(--gold);color:var(--ink);font-weight:800}
    .stagger-panel,.narrow-pair,.rack-top,.app-content-media,.about-grid,.offset-page article,.offset-page article:nth-child(even){grid-template-columns:1fr}
    .stagger-copy{order:1}.stagger-media{order:2;width:100%;clip-path:none}
    .narrow-pair{gap:12px}.fold-spines,.rack-cards,.point-grid,.memo-list,.help-grid,.home-faq,.three-periods{grid-template-columns:1fr}
    .fold-spines article:first-child{border-right:0;border-bottom:8px double var(--darkgold)}
    .period-row{grid-template-columns:1fr}.status-item,.state-board article{grid-template-columns:1fr;gap:5px}.badge{justify-self:start}
    .spine-page article{grid-template-columns:84px 1fr}.topic-list article{grid-template-columns:100px 1fr}.offset-page article:nth-child(even) .offset-copy{order:0}
    .app-media-wrap{grid-template-columns:1fr 96px}
}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}