:root{--bg:#E8E4DC;--deep-bg:#D6D0C6;--content:#F6F3ED;--sub:#EFEBE3;--title:#2C2A26;--text:#3A372F;--muted:#6B675E;--aux:#8A8478;--rock:#6B675E;--deep:#3E3B36;--light:#C8C2B6;--cream:#F7F3EB;--moss:#6A7A58;--clay:#A65A3A;--border:rgba(62,59,54,.16);--focus:rgba(166,90,58,.40);--shadow:0 12px 28px rgba(44,42,38,.08)}
*{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",Arial,sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}body.no-scroll{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}.skip-link{position:fixed;left:16px;top:-70px;z-index:100;background:var(--cream);color:var(--deep);padding:8px 12px;border-radius:8px}.skip-link:focus{top:8px}.stone-line{position:fixed;z-index:80;top:0;left:0;right:0;height:22px;background:var(--deep);color:var(--cream);font-size:12px}.top-inner{max-width:1080px;height:22px;margin:auto;padding:0 18px;display:flex;align-items:center;justify-content:space-between;gap:16px}.text-button{border:0;background:none;color:var(--cream);padding:0 4px;height:22px}.rock-header{position:fixed;z-index:79;top:22px;left:0;right:0;height:56px;background:var(--bg);border-bottom:1px solid var(--border)}.header-inner{max-width:1080px;height:100%;margin:auto;padding:0 18px;display:flex;align-items:center;justify-content:space-between;gap:16px}.brand{display:inline-flex;align-items:center;min-height:44px}.brand-logo{height:26px;max-width:170px;object-fit:contain}.brand-name{font-size:16px;font-weight:750;color:var(--title)}.header-actions{display:flex;align-items:center;gap:10px}.menu-button,.app-button,.close-button{min-height:44px;border-radius:9px;border:1px solid var(--border);padding:0 16px;display:inline-flex;align-items:center;justify-content:center;background:var(--cream);color:var(--deep);font-size:14px}.app-button{background:linear-gradient(135deg,#8A8478 0%,#6B675E 55%,#3E3B36 100%);color:var(--cream);border:0}.rock-tabs{position:fixed;z-index:78;top:78px;left:0;right:0;height:38px;background:var(--cream);border-bottom:1px solid var(--border)}.tabs-inner{height:100%;max-width:1080px;margin:auto;display:flex;align-items:center;justify-content:center;gap:8px}.tabs-inner a{height:30px;min-width:76px;padding:0 14px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:13px}.tabs-inner a.is-current{background:var(--deep);color:var(--cream)}.site-main{max-width:1080px;margin:0 auto;padding:148px 18px 72px;min-height:70vh}.page-hero{padding:26px 0 18px}.eyebrow{font-size:13px;color:var(--clay);letter-spacing:.08em;font-weight:700}.page-hero h1,.intro-block h1{font-size:24px;line-height:1.3;margin:7px 0 12px;color:var(--title)}h2{font-size:20px;line-height:1.4;color:var(--title)}h3{font-size:16px;line-height:1.45;color:var(--title)}p{margin:0 0 14px}.lead{max-width:780px;font-size:16px}.primary-button,.secondary-button{min-height:42px;padding:0 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img{width:100%;height:100%;object-fit:contain;object-position:center}.slot-168{height:168px}.slot-190{height:190px}.slot-220{height:220px}.slot-app{height:min(340px,48vw)}.slot-small{height:110px}.intro-block{padding:34px;background:linear-gradient(145deg,var(--content),var(--sub));border:1px solid var(--border);border-radius:12px}.split-feature{display:grid;grid-template-columns:1fr 1fr;gap:18px}.feature-panel{padding:16px}.feature-panel h2{margin:15px 0 8px}.feature-panel p{color:var(--muted)}.number-bars{display:grid;gap:10px}.number-bar{display:grid;grid-template-columns:58px 1fr;gap:18px;align-items:start;padding:16px 18px;background:var(--content);border:1px solid var(--border);border-radius:10px}.number-bar .mark{width:42px;height:42px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--deep);color:var(--cream);font-weight:800}.number-bar h3{margin:0 0 4px}.number-bar p{margin:0;color:var(--muted)}.note-columns{display:grid;grid-template-columns:1fr 1fr;gap:18px}.note-card{padding:22px;background:var(--cream);border-left:3px solid var(--moss);border-radius:10px}.note-card h3{margin-top:0}.shelf-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.shelf-cell{min-height:150px;padding:18px;background:var(--content);border:1px solid var(--border);border-radius:10px;position:relative}.shelf-cell:after{content:"";position:absolute;left:14px;right:14px;bottom:12px;height:2px;background:var(--light)}.shelf-cell h3{margin-top:0}.ordinal-list{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}.ordinal-item{padding:18px;background:var(--deep);color:var(--cream);border-radius:10px}.ordinal-item h3{color:var(--cream);margin:0 0 8px}.timeline-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;padding-bottom:8px}.timeline-node{min-width:0;background:var(--content);border:1px solid 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p{color:#E8E4DC}.prose{max-width:850px}.prose h2{margin-top:30px}.prose h3{margin-top:20px}.prose p{color:var(--text)}.prose .aside{padding:16px 18px;background:var(--sub);border-left:3px solid var(--clay);border-radius:8px}.observation-directory{display:grid;grid-template-columns:220px 1fr;gap:18px}.obs-index{padding:18px;background:var(--deep);color:var(--cream);border-radius:10px;height:max-content}.obs-index a{display:block;padding:8px 0;border-bottom:1px solid rgba(247,243,235,.16)}.obs-body{display:grid;gap:12px}.obs-body article{padding:20px;background:var(--content);border:1px solid var(--border);border-radius:10px}.card-wall{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.wall-card{padding:20px;background:var(--content);border:1px solid var(--border);border-radius:10px;min-height:210px}.wall-card:nth-child(2n){background:var(--sub)}.memo-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.memo{padding:20px;background:var(--cream);border:1px solid 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var(--border);border-radius:10px}.method-step:before{counter-increment:step;content:counter(step,"cjk-ideographic");position:absolute;left:22px;top:22px;width:36px;height:36px;border-radius:8px;background:var(--deep);color:var(--cream);display:flex;align-items:center;justify-content:center}.theme-list{display:grid;gap:12px}.theme-row{display:grid;grid-template-columns:160px 1fr;gap:18px;padding:18px;background:var(--content);border-bottom:1px solid var(--border)}.theme-row strong{color:var(--title)}.archive-shelf{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.archive-group{padding:20px;background:var(--content);border:1px solid var(--border);border-radius:10px}.archive-group h2{margin-top:0;padding-bottom:10px;border-bottom:3px solid var(--light)}.archive-group ul{padding-left:18px;margin:0}.product-points{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.product-point{padding:20px;background:var(--content);border:1px solid 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rgba(232,228,220,.16)}.footer-logo{height:26px;max-width:150px;object-fit:contain}.footer-brand strong,.footer-brand span{display:block}.footer-brand span{color:var(--light);font-size:12px}.footer-columns{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;padding:24px 0}.footer-columns h2{font-size:14px;color:var(--cream);margin:0 0 8px}.footer-columns a{display:block;color:#E8E4DC;padding:3px 0}.footer-note{color:var(--light);max-width:840px}.copyright{color:var(--aux);margin-bottom:0}.overlay{position:fixed;inset:0;z-index:89;background:rgba(42,40,36,.52);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.overlay.is-active{opacity:1;visibility:visible;pointer-events:auto}.rock-drawer{position:fixed;z-index:92;top:0;bottom:0;left:0;width:380px;max-width:88vw;background:var(--cream);box-shadow:var(--shadow);transform:translateX(-105%);visibility:hidden;pointer-events:none;transition:transform .25s ease,visibility .25s;padding:18px;overflow-y:auto}.rock-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-bottom:14px;border-bottom:1px solid var(--border)}.drawer-brand{display:flex;align-items:center;gap:10px}.drawer-brand img{height:26px;max-width:130px;object-fit:contain}.drawer-group{margin-top:18px}.drawer-group h2{font-size:13px;color:var(--clay);margin:0 0 8px}.drawer-group a{display:block;padding:10px 0;border-bottom:1px solid var(--border)}.drawer-group b,.drawer-group span{display:block}.drawer-group span{font-size:12px;color:var(--muted)}.search-layer{position:fixed;z-index:91;top:78px;left:0;right:0;visibility:hidden;pointer-events:none;transform:translateY(-18px);opacity:0;transition:.2s}.search-layer.is-open{visibility:visible;pointer-events:auto;transform:translateY(0);opacity:1}.search-card{max-width:760px;margin:12px auto;background:var(--bg);border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow);padding:20px}.search-head{display:flex;align-items:center;justify-content:space-between}.search-head h2{margin:0}.search-card label{display:block;margin:12px 0 8px}.search-card input{width:100%;min-height:44px;border:1px solid var(--border);border-radius:9px;background:var(--cream);color:var(--deep);padding:0 12px}.search-presets{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.search-presets a{padding:8px 12px;border:1px solid var(--border);background:var(--cream);border-radius:8px}.mobile-bottom{display:none}.banner-wrap{margin-top:14px}.banner-wrap .media-slot{height:220px}.aside-strip{padding:18px;background:var(--sub);border-radius:10px;border:1px solid var(--border)}.mt-14{margin-top:14px}
@media(max-width:820px){.rock-tabs{display:none}.site-main{padding:104px 16px 76px}.split-feature,.note-columns,.memo-grid,.archive-shelf,.product-points,.help-grid,.contact-grid{grid-template-columns:1fr}.shelf-grid{grid-template-columns:1fr 1fr}.ordinal-list{grid-template-columns:1fr}.horizontal-process{grid-template-columns:1fr}.timeline-row{grid-template-columns:1fr 1fr}.card-wall{grid-template-columns:1fr 1fr}.observation-directory{grid-template-columns:1fr}.obs-index{display:flex;flex-wrap:wrap;gap:8px}.obs-index a{white-space:normal;border:1px solid rgba(247,243,235,.18);border-radius:8px;padding:7px 10px}.theme-row{grid-template-columns:1fr}.footer-columns{grid-template-columns:1fr 1fr}.site-footer{padding-bottom:48px}.mobile-bottom{position:fixed;z-index:70;left:0;right:0;bottom:0;display:grid;grid-template-columns:repeat(5,1fr);height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:var(--cream);border-top:1px solid var(--border)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;font-size:12px;min-height:48px}.mobile-bottom a.is-current{background:var(--clay);color:var(--cream)}.search-layer{top:0;bottom:0;background:var(--deep);padding:18px}.search-card{margin:0;max-width:none;height:100%;background:var(--deep);color:var(--cream);border-color:rgba(247,243,235,.18);box-shadow:none}.search-card h2,.search-card label{color:var(--cream)}.search-presets a{background:transparent;color:var(--cream);border-color:rgba(247,243,235,.26)}.search-card .close-button{background:var(--cream);color:var(--deep)}.slot-app{height:320px}}
@media(max-width:560px){.timeline-row{grid-template-columns:1fr}.top-inner,.header-inner{padding-left:16px;padding-right:16px}.stone-line span{max-width:245px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.header-actions{gap:6px}.menu-button,.app-button{padding:0 12px}.intro-block{padding:24px 18px}.shelf-grid,.tips-list,.card-wall{grid-template-columns:1fr}.footer-columns{grid-template-columns:1fr 1fr;gap:14px}.section{margin:28px 0}.number-bar{grid-template-columns:48px 1fr;padding:14px}.slot-app{height:280px}}