:root{--bg:#F7F1D8;--deep:#E8DFA8;--paper:#FFF9E8;--soft:#F0E8C0;--ink:#16140C;--text:#2A2614;--muted:#5A5428;--aux:#7A7440;--yellow:#E8C430;--line:rgba(22,20,12,.12);--focus:rgba(232,196,48,.55);--shadow:0 12px 28px rgba(22,20,12,.10);--radius:14px;--max:960px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",Arial,sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}a{color:inherit;text-decoration:none}button{font:inherit}img{max-width:100%;display:block}.shell{width:min(var(--max),calc(100% - 32px));margin:0 auto}.site-header{position:fixed;inset:0 0 auto 0;z-index:40}.top-strip{height:20px;background:var(--ink);color:var(--yellow);font-size:12px}.top-strip-inner{height:20px;display:flex;align-items:center;justify-content:space-between}.text-button,.menu-button,.close-button{border:0;background:none;color:inherit;cursor:pointer}.text-button{min-height:20px;padding:0 2px;color:var(--yellow)}.brand-bar{height:54px;background:var(--paper);border-bottom:1px solid var(--line)}.brand-bar-inner{height:54px;display:flex;align-items:center;justify-content:space-between;gap:16px}.brand-link,.drawer-brand,.footer-logo-wrap{display:flex;align-items:center;gap:10px}.brand-logo,.footer-logo,.drawer-brand img{height:24px;width:auto;object-fit:contain}.brand-text{font-size:16px;font-weight:800;color:var(--ink)}.brand-actions{display:flex;align-items:center;gap:8px}.app-link,.menu-button{min-height:44px;display:inline-flex;align-items:center;justify-content:center;padding:0 14px;border-radius:12px;border:1px solid var(--ink);font-size:14px;background:var(--paper);color:var(--ink)}.menu-button{background:var(--ink);color:var(--yellow)}.quick-nav{height:48px;background:var(--paper);border-bottom:1px solid var(--line)}.quick-nav-inner{height:48px;display:flex;align-items:center;gap:10px}.quick-item{width:120px;height:28px;display:flex;align-items:center;justify-content:center;border:1px solid var(--ink);border-radius:12px;font-size:13px;background:var(--paper);color:var(--ink)}.quick-item.is-current{background:var(--ink);color:var(--yellow)}.site-main{padding-top:122px;padding-bottom:40px;min-height:70vh}h1,h2,h3{color:var(--ink);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:1.5;margin-bottom:8px}p{margin:0 0 14px}.eyebrow{font-size:12px;font-weight:800;letter-spacing:.08em;color:var(--muted);text-transform:uppercase}.lead{font-size:16px;color:var(--ink);font-weight:700}.page-shell{width:min(var(--max),calc(100% - 32px));margin:0 auto}.page-hero{padding:38px 0 26px}.page-hero .intro{max-width:760px;color:var(--muted)}.button-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.btn{min-height:42px;padding:0 18px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;border:1px solid var(--ink);font-weight:700}.btn-primary{background:linear-gradient(135deg,#16140C 0%,#E8C430 100%);color:var(--ink)}.btn-secondary{background:var(--paper);color:var(--ink)}a:hover,.btn:hover{filter:brightness(.98)}a:focus-visible,button:focus-visible{outline:3px solid var(--focus);outline-offset:2px}.surface{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.section{padding:26px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:16px}.section-head p{max-width:600px;color:var(--muted);margin:0}.media-slot{background:var(--paper);border:1px solid var(--line);border-radius:14px;display:flex;align-items:center;justify-content:center;overflow:hidden}.media-img{width:100%;height:100%;object-fit:contain;object-position:center}.empty-slot{min-height:120px}.index-grid{display:grid;grid-template-columns:repeat(2,120px);gap:10px;margin-bottom:22px}.index-grid a{height:34px;border:1px solid var(--ink);border-radius:12px;display:flex;align-items:center;justify-content:center;background:var(--paper);font-weight:700}.split-strip{display:grid;grid-template-columns:1fr 1fr;gap:14px}.split-strip article{padding:16px;border-radius:14px;border:1px solid var(--line);background:var(--paper)}.split-strip .media-slot{height:160px;margin-bottom:14px}.stack-cards{display:grid;gap:12px}.stack-card{display:grid;grid-template-columns:minmax(0,180px) 1fr;gap:16px;padding:16px}.stack-card .media-slot{min-height:150px}.stack-card:nth-child(2){margin-left:6%}.stack-card:nth-child(3){margin-left:12%}.fold-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}.fold-card{padding:18px;background:var(--soft);border:1px solid var(--line);border-radius:16px;position:relative}.fold-card:before{content:"";position:absolute;top:0;right:0;border-style:solid;border-width:0 26px 26px 0;border-color:transparent var(--yellow) transparent transparent}.fold-card .media-slot{height:170px;margin-bottom:14px}.two-cards{display:grid;grid-template-columns:1fr 1fr;gap:14px}.info-card{padding:18px}.theme-head-image{height:180px;margin-bottom:14px}.period-row,.status-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.period-row article,.status-row article{padding:16px;background:var(--paper);border:1px solid var(--line);border-radius:14px}.app-center{text-align:center}.app-center .app-image{height:300px;max-width:420px;margin:16px auto}.app-center .icon-slot{width:74px;height:74px;margin:0 auto 14px}.app-center .icon-slot img{width:48px;height:48px;object-fit:contain}.bullet-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.bullet-grid article{padding:16px;background:var(--paper);border:1px solid var(--line);border-radius:14px}.faq-mini{display:grid;gap:10px}.faq-mini details{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:12px 14px}.faq-mini summary{font-weight:700;color:var(--ink);cursor:pointer}.brand-story{padding:22px;background:var(--ink);color:var(--bg);border-radius:16px}.brand-story h2{color:var(--yellow)}
/* inner layouts */
.layout-stack .article-card{padding:18px;margin-bottom:14px}.layout-stack .article-card:nth-child(even){margin-left:7%}.layout-stack .article-card:nth-child(3n){margin-right:6%}.layout-stack .media-slot{height:210px;margin:0 0 14px}.layout-bars{display:grid;gap:12px}.layout-bars article{display:grid;grid-template-columns:160px 1fr;gap:18px;padding:16px;align-items:center}.layout-bars article:nth-child(even){grid-template-columns:1fr 160px}.layout-bars article:nth-child(even) .bar-label{order:2}.bar-label{height:100%;min-height:110px;display:flex;align-items:center;justify-content:center;border-radius:12px;background:var(--ink);color:var(--yellow);font-weight:800}.layout-folds{display:grid;gap:12px}.layout-folds article{padding:18px;background:var(--paper);border:1px solid var(--line);border-radius:16px;position:relative}.layout-folds article:nth-child(odd){margin-right:10%}.layout-folds article:nth-child(even){margin-left:10%;background:var(--soft)}.layout-folds article:after{content:"";position:absolute;right:12px;bottom:12px;width:28px;height:2px;background:var(--yellow)}.single-column{display:grid;gap:14px}.single-column section{padding:18px}.single-column .media-slot{height:250px}.timeline{position:relative;padding-left:26px}.timeline:before{content:"";position:absolute;left:8px;top:6px;bottom:6px;width:2px;background:var(--ink)}.timeline article{position:relative;padding:16px 18px;margin-bottom:14px;background:var(--paper);border:1px solid var(--line);border-radius:14px}.timeline article:before{content:"";position:absolute;width:12px;height:12px;border-radius:50%;background:var(--yellow);left:-24px;top:22px;border:2px solid var(--ink)}.status-list{display:grid;gap:10px}.status-list article{display:grid;grid-template-columns:130px 1fr;gap:16px;padding:14px 16px;background:var(--paper);border:1px solid var(--line);border-radius:14px}.status-chip{display:flex;align-items:center;justify-content:center;border-radius:10px;background:var(--ink);color:var(--yellow);font-weight:800;min-height:48px}.checklist{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.checklist section{padding:18px}.checklist ul{margin:0;padding-left:20px}.method-steps{counter-reset:method;display:grid;gap:12px}.method-steps article{counter-increment:method;padding:18px 18px 18px 72px;position:relative}.method-steps article:before{content:counter(method,decimal-leading-zero);position:absolute;left:18px;top:16px;font-size:24px;font-weight:900;color:var(--yellow);background:var(--ink);border-radius:10px;padding:4px 8px}.topic-list{display:grid;gap:12px}.topic-list article{padding:18px;display:grid;grid-template-columns:150px 1fr;gap:18px}.topic-tag{background:var(--yellow);color:var(--ink);border-radius:12px;display:flex;align-items:center;justify-content:center;font-weight:800;min-height:100px}.center-card{max-width:760px;margin:0 auto;text-align:center;padding:22px}.center-card + .center-card{margin-top:14px}.center-card .media-slot{height:220px;margin:0 auto 16px}.terms{display:grid;gap:14px}.terms section{padding:18px}.terms h2{padding-bottom:10px;border-bottom:1px solid var(--line)}.faq-list{display:grid;gap:12px}.faq-item{padding:18px}.faq-item h2{font-size:17px}.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.contact-grid section{padding:18px}.banner-slot{height:200px;margin:0 0 18px}.about-quote{font-size:18px;font-weight:800;border-left:4px solid var(--yellow);padding:10px 0 10px 16px;color:var(--ink)}
.site-footer{background:var(--ink);color:var(--bg);border-top:1px solid var(--yellow);font-size:13px;padding:30px 0 70px}.footer-logo-wrap{color:var(--bg)}.footer-logo-wrap span{display:flex;flex-direction:column;line-height:1.2}.footer-logo-wrap small{color:var(--yellow);font-size:11px}.footer-groups{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin:24px 0}.footer-groups h2{font-size:14px;color:var(--yellow);margin-bottom:8px}.footer-groups a{display:block;margin:5px 0;color:var(--bg)}.footer-note{max-width:820px;color:#e5dfc0}.copyright{color:#bfb88f;margin-bottom:0}.overlay{position:fixed;inset:0;background:rgba(22,20,12,.44);opacity:0;visibility:hidden;pointer-events:none;transition:.2s;z-index:60}.overlay.is-open{opacity:1;visibility:visible;pointer-events:auto}.side-drawer{position:fixed;right:0;top:20px;width:min(32vw,440px);max-height:calc(100vh - 40px);overflow:auto;background:var(--paper);border:1px solid var(--line);box-shadow:var(--shadow);z-index:70;transform:translateX(110%);visibility:hidden;pointer-events:none;transition:.22s;border-radius:16px 0 0 16px}.side-drawer.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-head{position:sticky;top:0;background:var(--paper);display:flex;justify-content:space-between;align-items:center;padding:12px 14px;border-bottom:1px solid var(--line);z-index:1}.drawer-brand span{font-weight:800;color:var(--ink)}.close-button{min-height:44px;padding:0 12px;border:1px solid var(--ink);border-radius:10px;color:var(--ink);background:var(--paper)}.drawer-body{padding:12px 14px 18px}.drawer-body section{margin-bottom:16px}.drawer-body h2{font-size:15px;margin-bottom:8px}.drawer-body a{display:block;padding:10px 0;border-bottom:1px solid var(--line)}.drawer-body a span{display:block;color:var(--muted);font-size:13px}.search-panel{position:fixed;z-index:72;top:74px;left:50%;width:min(720px,calc(100% - 32px));transform:translate(-50%,-18px);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.search-panel.is-open{opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0)}.search-card{background:var(--paper);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:16px;padding:16px}.search-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.search-presets{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.search-presets a{min-height:44px;display:flex;align-items:center;justify-content:center;background:var(--ink);color:var(--yellow);border-radius:12px}.mobile-bottom{display:none}.modal-open{overflow:hidden}
@media (max-width:760px){.shell,.page-shell{width:calc(100% - 32px)}.quick-nav{display:none}.site-main{padding-top:74px;padding-bottom:76px}.brand-actions{gap:6px}.app-link,.menu-button{padding:0 10px}.split-strip,.fold-list,.two-cards,.period-row,.status-row,.bullet-grid,.checklist,.contact-grid{grid-template-columns:1fr}.stack-card,.layout-bars article,.layout-bars article:nth-child(even),.topic-list article,.status-list article{grid-template-columns:1fr}.layout-bars article:nth-child(even) .bar-label{order:0}.stack-card:nth-child(2),.stack-card:nth-child(3),.layout-stack .article-card:nth-child(even),.layout-stack .article-card:nth-child(3n),.layout-folds article:nth-child(odd),.layout-folds article:nth-child(even){margin-left:0;margin-right:0}.index-grid{grid-template-columns:1fr 1fr}.side-drawer{top:8px;width:88vw;max-height:calc(100vh - 16px)}.search-panel{top:0;left:0;width:100%;height:100vh;transform:none;background:var(--ink);padding:16px}.search-panel.is-open{transform:none}.search-card{height:100%;background:var(--ink);color:var(--yellow);border-color:rgba(232,196,48,.35)}.search-card strong,.search-card p{color:var(--yellow)}.search-card .close-button{background:var(--paper);color:var(--ink)}.search-presets{grid-template-columns:1fr 1fr}.mobile-bottom{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;left:0;right:0;bottom:0;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:var(--ink);z-index:50;border-top:1px solid var(--yellow)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;color:var(--bg);font-size:13px;min-height:48px}.mobile-bottom a.is-current{background:var(--yellow);color:var(--ink);font-weight:800}.site-footer{padding-bottom:86px}.footer-groups{grid-template-columns:1fr 1fr}.app-center .app-image{height:280px}.banner-slot{height:180px}.page-hero{padding-top:28px}.top-strip-inner{gap:12px}.top-strip-inner>span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.brand-bar-inner{gap:8px}.brand-link{min-width:0}.brand-text{white-space:nowrap}.method-steps article{padding-left:62px}}
@media (max-width:420px){.app-link{padding:0 9px}.menu-button{padding:0 9px}.footer-groups{grid-template-columns:1fr}.search-presets{grid-template-columns:1fr}.index-grid{grid-template-columns:1fr}.index-grid a{height:42px}.page-hero h1{font-size:22px}}

.section-panel{padding:18px}.section-gap{margin-top:14px}.panel-left{text-align:left}.intro-center{margin-left:auto;margin-right:auto}.button-center{justify-content:center}.text-center{text-align:center}.about-cover-slot{height:220px;margin:0 0 18px}.brand-link,.footer-logo-wrap{min-height:44px}.footer-groups a{min-height:44px;display:flex;align-items:center}.index-grid a{min-height:44px;height:44px}
.text-button{position:relative;height:44px;margin:-12px -10px;padding:0 10px;display:inline-flex;align-items:center;justify-content:center;z-index:2}.quick-item{position:relative}.quick-item::before{content:"";position:absolute;inset:-8px 0}