*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{margin:0;background:#F2E6C8;color:#2A2210;font:15px/1.7 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;overflow-x:hidden;padding-top:114px}
body.modal-open{overflow:hidden}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{cursor:pointer}
img{display:block;max-width:100%;object-fit:contain;object-position:center}
h1,h2,h3,p{margin-top:0}
h1{font-size:24px;line-height:1.3;color:#161208;margin-bottom:16px}
h2{font-size:20px;line-height:1.35;color:#161208}
h3{font-size:16px;line-height:1.45;color:#161208}
p{margin-bottom:16px}
.top-strip{position:fixed;z-index:80;top:0;left:0;right:0;height:20px;background:#161208;color:#B8943A;font-size:12px}
.top-strip-inner,.site-header-inner,.wave-nav-inner,.footer-inner,.page-wrap{width:min(960px,calc(100% - 32px));margin:0 auto}
.top-strip-inner{height:20px;display:flex;align-items:center;justify-content:space-between}
.top-brand{font-weight:700;letter-spacing:.04em}
.search-open{height:20px;padding:0 2px;border:0;background:transparent;color:#B8943A;font-size:12px}
.site-header{position:fixed;z-index:79;top:20px;left:0;right:0;height:54px;background:#FBF4E2;border-bottom:1px solid rgba(92,72,20,.35)}
.site-header-inner{height:54px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.brand-link{display:inline-flex;align-items:center;min-height:44px;min-width:60px}
.brand-logo,.drawer-logo,.footer-logo{height:24px;width:auto;max-width:150px;object-fit:contain}
.brand-fallback{font-size:16px;font-weight:800;letter-spacing:.08em;color:#161208}
.header-actions{display:flex;align-items:center;gap:8px;white-space:nowrap}
.app-link,.drawer-open{height:44px;display:inline-flex;align-items:center;justify-content:center;padding:0 14px;border-radius:4px;font-size:14px}
.app-link{background:linear-gradient(135deg,#161208 0%,#B8943A 100%);color:#FBF4E2;border:1px solid #161208}
.drawer-open{background:#FBF4E2;color:#161208;border:1px solid rgba(92,72,20,.50)}
.wave-nav{position:fixed;z-index:78;top:74px;left:0;right:0;height:40px;background:#FBF4E2;border-bottom:1px solid rgba(22,18,8,.12)}
.wave-nav-inner{height:40px;display:flex;align-items:flex-end;justify-content:center;gap:28px;padding-bottom:3px}
.wave-item{width:220px;max-width:28%;text-align:center;font-size:13px;color:#5A4A28}
.wave-item span{display:block;line-height:24px}
.wave-item i{display:block;height:6px;border:1px solid #5C4814;border-radius:999px}
.wave-item.is-current i{background:#B8943A;border-color:#B8943A}
#main-content{min-height:60vh}
.page-wrap{padding:34px 0 56px}
.eyebrow{font-size:12px;color:#7A6840;letter-spacing:.14em;margin-bottom:8px;text-transform:uppercase}
.lead{font-size:16px;color:#5A4A28;max-width:760px}
.primary-btn,.secondary-btn{min-height:44px;padding:0 18px;display:inline-flex;align-items:center;justify-content:center;border-radius:4px;font-size:14px;white-space:nowrap}
.primary-btn{background:linear-gradient(135deg,#161208 0%,#B8943A 100%);color:#FBF4E2;border:1px solid #161208}
.secondary-btn{background:#FBF4E2;color:#161208;border:1px solid rgba(92,72,20,.50)}
.primary-btn:hover,.secondary-btn:hover,.app-link:hover{transform:translateY(-1px)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(184,148,58,.55);outline-offset:2px}
.intro-index{display:flex;gap:10px;flex-wrap:wrap;margin:0 0 18px;padding:0;list-style:none}
.intro-index a{font-size:13px;color:#5C4814;border-bottom:1px solid rgba(92,72,20,.5);padding:4px 0}
.home-hero{padding:8px 0 28px}
.home-hero .hero-copy{max-width:760px}
.home-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}
.section-block{margin:28px 0;padding:24px;background:#FBF4E2;border:1px solid rgba(22,18,8,.12);box-shadow:0 12px 28px rgba(22,18,8,.10);border-radius:4px}
.media-slot{background:#FBF4E2;border:1px solid rgba(92,72,20,.35);display:flex;align-items:center;justify-content:center;overflow:hidden}
.media-slot img{width:100%;height:100%;object-fit:contain;object-position:center}
.media-placeholder{display:block;width:48px;height:1px;background:rgba(92,72,20,.22)}
.cut-scene{position:relative;min-height:220px;padding:28px 44% 28px 28px;background:#E0D2AE;border:1px solid rgba(92,72,20,.4);overflow:hidden}
.cut-scene .media-slot{position:absolute;top:0;right:0;width:42%;height:180px;clip-path:polygon(18% 0,100% 0,100% 100%,0 100%);border:0;border-left:1px solid rgba(92,72,20,.35)}
.wide-card{padding:26px;background:#FBF4E2;border:1px solid rgba(92,72,20,.50);box-shadow:0 12px 28px rgba(22,18,8,.10)}
.wide-card .media-slot{height:230px;margin-bottom:20px}
.spine-pair{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.spine-card{min-height:220px;background:#EBE0C4;border-left:8px solid #5C4814;padding:24px;border-radius:2px}
.spine-card .media-slot{height:150px;margin:0 0 18px}
.topic-stack{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.topic-card{background:#FBF4E2;border:1px solid rgba(22,18,8,.12);padding:22px;border-radius:4px}
.topic-head-image{height:190px;margin-bottom:16px}
.period-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.period-card{padding:20px;background:#EBE0C4;border-top:4px solid #B8943A}
.status-list{display:grid;gap:10px}
.status-item{display:grid;grid-template-columns:110px 1fr;gap:16px;align-items:center;padding:16px;background:#FBF4E2;border:1px solid rgba(22,18,8,.12)}
.status-badge{display:inline-flex;align-items:center;justify-content:center;min-height:36px;padding:0 10px;border:1px solid #5C4814;color:#5C4814;background:#F2E6C8;font-weight:700}
.app-feature{display:grid;gap:18px}
.app-feature .app-copy{padding:24px;background:#161208;color:#F2E6C8}
.app-feature .app-copy h2{color:#B8943A}
.app-feature .app-copy p{color:#F2E6C8}
.app-media-row{display:grid;grid-template-columns:1fr 90px;gap:16px;align-items:end}
.app-media-row .app-main{height:300px}
.app-media-row .app-icon{height:90px}
.read-points{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.read-point{padding:20px;background:#EBE0C4;border:1px solid rgba(22,18,8,.12)}
.faq-mini{display:grid;gap:12px}
.faq-mini details{background:#FBF4E2;border:1px solid rgba(22,18,8,.12);padding:14px 16px}
.faq-mini summary{font-weight:700;color:#161208;cursor:pointer}
.brand-story{padding:26px;background:#161208;color:#F2E6C8}
.brand-story h2{color:#B8943A}
.page-head{margin-bottom:28px}
.page-head .meta-line{font-size:13px;color:#7A6840}
.single-wide{max-width:820px;margin:0 auto}
.feature-panel{padding:28px;background:#FBF4E2;border:1px solid rgba(92,72,20,.5);box-shadow:0 12px 28px rgba(22,18,8,.1)}
.feature-panel .media-slot{height:250px;margin:20px 0}
.angle-layout{position:relative;min-height:300px;background:#E0D2AE;padding:30px 46% 30px 30px;overflow:hidden;border:1px solid rgba(92,72,20,.4)}
.angle-layout .media-slot{position:absolute;right:0;top:0;width:44%;height:100%;clip-path:polygon(20% 0,100% 0,100% 100%,0 100%);border:0}
.spine-list{display:grid;gap:16px}
.spine-entry{padding:22px 22px 22px 28px;background:#FBF4E2;border-left:7px solid #5C4814;box-shadow:0 8px 20px rgba(22,18,8,.08)}
.spine-entry .media-slot{height:210px;margin:14px 0 18px}
.one-column{max-width:780px;margin:0 auto;display:grid;gap:16px}
.one-column section{padding:22px;background:#FBF4E2;border:1px solid rgba(22,18,8,.12)}
.one-column .media-slot{height:240px;margin-bottom:18px}
.period-feature{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.period-feature section{padding:24px;background:#FBF4E2;border-top:6px solid #B8943A;min-height:260px}
.period-feature .media-slot{height:160px;margin-bottom:16px}
.timeline-status{display:grid;gap:12px}
.timeline-status article{display:grid;grid-template-columns:120px 1fr;gap:18px;align-items:start;padding:20px;background:#FBF4E2;border-bottom:1px solid rgba(92,72,20,.35)}
.timeline-status .media-slot{height:210px;margin-top:16px;grid-column:1/-1}
.memo-list{counter-reset:memo;display:grid;gap:12px}
.memo-list article{position:relative;padding:22px 22px 22px 70px;background:#EBE0C4;border:1px solid rgba(22,18,8,.12)}
.memo-list article:before{counter-increment:memo;content:counter(memo,decimal-leading-zero);position:absolute;left:22px;top:20px;color:#B8943A;font-weight:800}
.memo-list .media-slot{height:210px;margin-top:14px}
.method-flow{display:grid;grid-template-columns:1fr;gap:18px}
.method-nav{position:static;padding:12px 18px;background:#161208;color:#F2E6C8;display:flex;gap:14px;flex-wrap:wrap}
.method-nav a{display:inline-flex;align-items:center;min-height:44px;padding:0 8px;border-bottom:1px solid rgba(242,230,200,.15)}
.method-body{display:grid;gap:14px}
.method-body section{padding:22px;background:#FBF4E2;border:1px solid rgba(22,18,8,.12)}
.special-list{display:grid;gap:14px}
.special-list article{display:grid;grid-template-columns:180px 1fr;gap:18px;padding:22px;background:#FBF4E2;border:1px solid rgba(22,18,8,.12)}
.special-list strong{font-size:20px;color:#5C4814}
.center-card{max-width:760px;margin:0 auto;padding:32px;background:#FBF4E2;border:1px solid rgba(92,72,20,.5);text-align:center;box-shadow:0 12px 28px rgba(22,18,8,.1)}
.center-card .media-slot{height:240px;margin:18px 0}
.center-card .text-block{text-align:left}
.app-page-layout{display:grid;gap:18px;max-width:820px;margin:0 auto}
.app-page-layout .copy{padding:28px;background:#161208;color:#F2E6C8}
.app-page-layout .copy h2{color:#B8943A}
.app-page-layout .media-slot{height:300px}
.app-page-layout .icon-slot{height:72px;width:72px;margin:0 auto}
.install-steps{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.install-steps section{padding:22px;background:#FBF4E2;border-bottom:4px solid #5C4814}
.policy-sections{display:grid;gap:14px}
.policy-sections section{padding:22px;background:#FBF4E2;border:1px solid rgba(22,18,8,.12)}
.help-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.help-grid section{padding:22px;background:#FBF4E2;border:1px solid rgba(92,72,20,.28)}
.faq-list{display:grid;gap:12px}
.faq-list details{background:#FBF4E2;border:1px solid rgba(22,18,8,.12);padding:16px 18px}
.faq-list summary{font-weight:800;color:#161208;cursor:pointer}
.contact-paths{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.contact-paths section{padding:22px;background:#FBF4E2;border-top:4px solid #5C4814}
.about-banner{height:200px;margin:0 0 24px}
.about-layout{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.about-layout section{padding:22px;background:#FBF4E2;border:1px solid rgba(22,18,8,.12)}
.side-drawer{position:fixed;z-index:110;top:86px;right:16px;width:min(32vw,420px);height:min(80vh,760px);background:#FBF4E2;border:1px solid rgba(92,72,20,.5);box-shadow:0 18px 50px rgba(22,18,8,.25);transform:translateX(calc(100% + 30px));visibility:hidden;pointer-events:none;transition:transform .22s ease,visibility .22s ease;display:flex;flex-direction:column}
.side-drawer.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 14px;border-bottom:1px solid rgba(22,18,8,.12)}
.drawer-brand{display:flex;align-items:center;gap:10px;font-weight:800}
.drawer-close,.search-head button{min-height:44px;padding:0 12px;background:#FBF4E2;color:#161208;border:1px solid rgba(92,72,20,.5);border-radius:4px}
.drawer-body{overflow:auto;padding:14px}
.drawer-group{margin-bottom:18px}
.drawer-group h2{font-size:13px;color:#7A6840;margin-bottom:6px}
.drawer-group a{display:block;padding:10px 0;border-bottom:1px solid rgba(22,18,8,.09)}
.drawer-group a strong,.drawer-group a span{display:block}
.drawer-group a span{font-size:12px;color:#7A6840}
.search-panel{position:fixed;z-index:105;top:74px;left:50%;width:min(960px,calc(100% - 32px));transform:translate(-50%,-20px);background:#FBF4E2;border:1px solid rgba(92,72,20,.5);box-shadow:0 18px 50px rgba(22,18,8,.22);visibility:hidden;opacity:0;pointer-events:none;transition:.2s}
.search-panel.is-open{visibility:visible;opacity:1;pointer-events:auto;transform:translate(-50%,0)}
.search-card{padding:18px}
.search-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.search-head h2{margin:0}
.search-card label{display:block;margin:12px 0 8px;color:#5A4A28}
.search-card input{width:100%;height:44px;border:1px solid rgba(92,72,20,.5);background:#fffaf0;color:#161208;padding:0 12px;border-radius:4px}
.search-presets{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:12px}
.search-presets a{padding:12px;background:#EBE0C4;border:1px solid rgba(22,18,8,.1)}
.search-presets a span{display:block;color:#7A6840;font-size:12px}
.page-overlay{position:fixed;inset:0;z-index:100;background:rgba(22,18,8,.38);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}
.page-overlay.is-open{opacity:1;visibility:visible;pointer-events:auto}
.mobile-bottom{display:none}
.site-footer{background:#161208;color:#F2E6C8;border-top:1px solid #B8943A;padding:30px 0 28px;font-size:13px}
.footer-brand-link{display:inline-flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand-link span{display:flex;gap:8px;align-items:baseline}
.footer-brand-link em{font-style:normal;color:#B8943A;letter-spacing:.08em}
.footer-links{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.footer-links h2{font-size:13px;color:#B8943A;margin-bottom:8px}
.footer-links a{display:block;padding:3px 0;color:#F2E6C8}
.footer-note{margin:24px 0 8px;color:#E0D2AE;max-width:820px}
.copyright{margin:0;color:#B8943A}
.notice-box{padding:18px;background:#E0D2AE;border-left:4px solid #5C4814}
.inline-links{display:flex;gap:10px;flex-wrap:wrap}
.inline-links a{min-height:44px;display:inline-flex;align-items:center;padding:0 14px;border:1px solid rgba(92,72,20,.5);background:#FBF4E2;border-radius:4px}
@media(max-width:760px){
  body{padding-top:74px;padding-bottom:calc(48px + env(safe-area-inset-bottom))}
  .wave-nav{display:none}
  .top-strip-inner,.site-header-inner,.footer-inner,.page-wrap{width:calc(100% - 32px)}
  .site-header{top:20px}
  .header-actions{gap:6px}
  .app-link,.drawer-open{padding:0 11px}
  .section-block{padding:18px;margin:20px 0}
  .cut-scene{padding:200px 18px 20px;min-height:0}
  .cut-scene .media-slot{width:100%;height:180px;clip-path:polygon(10% 0,100% 0,100% 100%,0 100%)}
  .spine-pair,.topic-stack,.period-row,.read-points,.period-feature,.install-steps,.help-grid,.contact-paths,.about-layout,.footer-links{grid-template-columns:1fr}
  .status-item,.timeline-status article,.special-list article{grid-template-columns:1fr}
  .angle-layout{padding:230px 20px 22px;min-height:0}
  .angle-layout .media-slot{width:100%;height:210px;clip-path:polygon(12% 0,100% 0,100% 100%,0 100%)}
  .method-flow{grid-template-columns:1fr}
  .method-nav{position:static}
  .search-panel{top:0;left:0;width:100%;height:100vh;transform:none;background:#161208;color:#B8943A;border:0}
  .search-panel.is-open{transform:none}
  .search-card{padding:22px 16px}
  .search-head h2{color:#B8943A}
  .search-card label{color:#F2E6C8}
  .search-presets{grid-template-columns:1fr}
  .search-presets a{background:#2b2414;border-color:rgba(184,148,58,.35);color:#F2E6C8}
  .search-presets a span{color:#E0D2AE}
  .side-drawer{top:74px;right:8px;width:88%;height:min(80vh,720px)}
  .mobile-bottom{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);display:grid;grid-template-columns:repeat(4,1fr);background:#161208;border-top:1px solid rgba(184,148,58,.6)}
  .mobile-bottom a{display:flex;align-items:center;justify-content:center;min-height:48px;color:#F2E6C8;font-size:13px}
  .mobile-bottom a.is-current{background:#B8943A;color:#161208;font-weight:800}
  .app-media-row{grid-template-columns:1fr 72px}
  .app-media-row .app-main{height:280px}
  .app-media-row .app-icon{height:72px}
}

.after-space{margin-top:18px}
.brand-cover{height:240px;margin-bottom:20px}