:root{--bg:#E8E4DC;--deep:#D6D0C6;--paper:#F6F3ED;--soft:#EFEBE3;--title:#2C2A26;--text:#3A372F;--muted:#6B675E;--quiet:#8A8478;--rock:#6B675E;--dark:#3E3B36;--light:#C8C2B6;--warm:#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}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}a{color:inherit;text-decoration:none}button{font:inherit}img{display:block;max-width:100%}.site-width{width:min(1080px,calc(100% - 32px));margin:0 auto}.stone-line{position:fixed;z-index:90;top:0;left:0;right:0;height:22px;background:var(--dark);color:var(--warm);font-size:12px}.stone-line-inner{height:22px;display:flex;align-items:center;justify-content:space-between;gap:12px}.text-button{border:0;background:transparent;color:var(--warm);padding:0 8px;min-height:22px;cursor:pointer}.rock-bar{position:fixed;z-index:88;top:22px;left:0;right:0;height:56px;background:var(--deep);border-bottom:1px solid var(--border)}.rock-bar-inner{height:56px;display:flex;align-items:center;justify-content:space-between;gap:14px}.brand-link{min-width:120px;min-height:44px;display:flex;align-items:center;font-size:16px;font-weight:700;color:var(--dark)}.brand-link img,.drawer-brand img,.footer-brandmark img{height:26px;width:auto;max-width:180px;object-fit:contain;object-position:center}.rock-actions{display:flex;align-items:center;gap:8px}.soft-button,.primary-mini,.button-main,.button-soft{height:42px;display:inline-flex;align-items:center;justify-content:center;border-radius:9px;padding:0 16px;font-size:14px;white-space:nowrap;cursor:pointer}.soft-button,.button-soft{border:1px solid var(--clay);background:var(--warm);color:var(--dark)}.primary-mini,.button-main{border:1px solid transparent;background:linear-gradient(135deg,#8A8478 0%,#6B675E 55%,#3E3B36 100%);color:var(--warm)}.rock-tabs{position:fixed;z-index:86;top:78px;left:0;right:0;height:38px;background:var(--warm);border-bottom:1px solid var(--border)}.rock-tabs-inner{height:38px;display:flex;justify-content:center;align-items:center;gap:10px}.rock-tabs a{height:30px;display:inline-flex;align-items:center;padding:0 16px;border-radius:8px;color:var(--dark);font-size:13px}.rock-tabs a.is-current{background:var(--dark);color:var(--warm)}.page-main{padding-top:140px;padding-bottom:64px;min-height:60vh}h1,h2,h3{color:var(--title);margin:0 0 12px}h1{font-size:24px;line-height:1.3}h2{font-size:20px}h3{font-size:16px}p{margin:0 0 14px}.eyebrow{font-size:12px;letter-spacing:.12em;color:var(--clay);font-weight:700;text-transform:uppercase}.page-intro{padding:22px 0 28px}.page-intro .lead{font-size:16px;max-width:820px;color:var(--muted)}.stone-section{padding:22px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:14px}.section-head p{color:var(--muted);max-width:620px;margin:0}.intro-box{background:var(--paper);border:1px solid var(--border);border-radius:12px;padding:26px;box-shadow:var(--shadow)}.intro-box .hero-line{font-size:19px;font-weight:700;color:var(--dark);margin:6px 0 10px}.intro-box .actions{margin-top:18px}.duo-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.duo-card,.note-card,.legal-card,.method-card,.topic-row,.faq-item,.archive-cell,.product-panel{background:var(--paper);border:1px solid var(--border);border-radius:10px;box-shadow:var(--shadow)}.duo-card{padding:16px}.media-slot{height:168px;background:var(--soft);border:1px solid var(--border);border-radius:9px;display:flex;align-items:center;justify-content:center;margin-bottom:14px;overflow:hidden}.media-slot img,.media-tall img,.media-wide img,.media-banner img{width:100%;height:100%;object-fit:contain;object-position:center}.media-wide{height:190px;background:var(--soft);border:1px solid var(--border);border-radius:10px;display:flex;align-items:center;justify-content:center;overflow:hidden}.media-tall{height:min(340px,55vw);min-height:240px;background:var(--soft);border:1px solid var(--border);border-radius:10px;display:flex;align-items:center;justify-content:center;overflow:hidden}.media-banner{height:220px;background:var(--soft);border:1px solid var(--border);border-radius:10px;display:flex;align-items:center;justify-content:center;overflow:hidden}.alpha-list{display:grid;gap:10px;margin-top:14px}.alpha-item{display:grid;grid-template-columns:56px 1fr;gap:14px;background:var(--paper);border:1px solid var(--border);border-left:4px solid var(--clay);border-radius:9px;padding:14px 16px}.alpha-mark{width:42px;height:42px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--deep);color:var(--dark);font-weight:700}.note-columns{display:grid;grid-template-columns:1fr 1fr;gap:16px}.note-card{padding:18px}.note-card ul,.legal-card ul,.method-card ul{padding-left:20px;margin:8px 0 0}.shelf-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.archive-cell{min-height:142px;padding:16px;position:relative}.archive-cell:before{content:"";position:absolute;left:14px;right:14px;top:12px;height:3px;border-radius:3px;background:var(--light)}.archive-cell h3{margin-top:10px}.status-line{display:flex;gap:12px;flex-wrap:wrap;padding-bottom:8px}.status-node{min-width:0;flex:1 1 220px;background:var(--paper);border:1px solid var(--border);border-radius:10px;padding:16px}.status-node b{display:inline-block;color:var(--moss);margin-bottom:8px}.status-node.is-pending b{color:var(--clay)}.app-stack{background:var(--deep);border-radius:12px;padding:22px}.app-copy{max-width:850px;margin-bottom:18px}.app-icons{display:flex;gap:14px;align-items:flex-end}.icon-slot{width:64px;height:64px;border-radius:12px;background:var(--warm);border:1px solid var(--border);display:flex;align-items:center;justify-content:center}.icon-slot img{width:48px;height:48px;object-fit:contain}.read-points{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.method-card{padding:18px}.faq-compact{display:grid;gap:10px}.faq-item{padding:16px}.faq-item h3{margin-bottom:8px}.brand-panel{display:grid;grid-template-columns:1fr 280px;gap:18px;background:var(--paper);border:1px solid var(--border);border-radius:12px;padding:22px}.small-brand-slot{min-height:160px;background:var(--soft);border-radius:10px;display:flex;align-items:center;justify-content:center}.small-brand-slot img{max-height:160px;object-fit:contain}.observe-directory{display:grid;grid-template-columns:220px 1fr;gap:16px}.observe-nav{background:var(--dark);color:var(--warm);border-radius:10px;padding:16px;align-self:start;position:sticky;top:132px}.observe-nav a{display:block;padding:9px 10px;border-radius:7px}.observe-nav a:hover{background:rgba(247,243,235,.1)}.observe-body{display:grid;gap:14px}.observe-entry{background:var(--paper);border:1px solid var(--border);border-radius:10px;padding:20px}.card-wall{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.wall-card{background:var(--paper);border:1px solid var(--border);border-radius:11px;padding:20px}.memo-list{display:grid;gap:10px}.memo-item{background:var(--paper);border:1px solid var(--border);border-radius:10px;padding:16px;display:grid;grid-template-columns:130px 1fr;gap:16px}.memo-item strong{color:var(--clay)}.method-steps{display:grid;gap:12px}.method-step{display:grid;grid-template-columns:84px 1fr;gap:16px;background:var(--paper);border:1px solid var(--border);border-radius:10px;padding:18px}.method-step .step-label{font-weight:700;color:var(--moss)}.topic-list{display:grid;gap:10px}.topic-row{padding:18px;display:grid;grid-template-columns:160px 1fr;gap:16px}.topic-row strong{color:var(--dark)}.product-panel{padding:22px}.feature-list{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.feature-item{background:var(--soft);border-radius:9px;padding:16px}.legal-stack{display:grid;gap:12px}.legal-card{padding:20px}.legal-card h2{font-size:18px}.contact-paths{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.contact-path{background:var(--paper);border:1px solid var(--border);border-radius:10px;padding:18px}.contact-path span{display:block;color:var(--muted);margin-top:6px}.site-footer{background:#2A2824;color:#E8E4DC;border-top:1px solid rgba(200,194,182,.3);padding:28px 0 calc(26px + env(safe-area-inset-bottom));font-size:13px}.footer-brand{border-bottom:1px solid rgba(200,194,182,.25);padding-bottom:18px}.footer-brandmark{display:flex;align-items:center;gap:12px}.footer-brandmark img{filter:brightness(1.45)}.footer-brandmark div{display:flex;flex-direction:column}.footer-brandmark span{color:#C8C2B6}.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;padding:22px 0}.footer-grid h2{font-size:14px;color:#F7F3EB;margin-bottom:8px}.footer-grid a{display:block;color:#E8E4DC;padding:5px 0}.footer-note{color:#C8C2B6;border-top:1px solid rgba(200,194,182,.25);padding-top:16px}.rock-drawer{position:fixed;z-index:120;top:0;left:0;bottom:0;width:380px;max-width:88vw;background:var(--warm);transform:translateX(-105%);transition:transform .24s ease;visibility:hidden;pointer-events:none;box-shadow:var(--shadow)}.drawer-open .rock-drawer{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-head{height:70px;display:flex;align-items:center;justify-content:space-between;padding:0 16px;border-bottom:1px solid var(--border);background:var(--deep)}.drawer-brand{display:flex;align-items:center;gap:10px}.icon-close{min-height:44px;border:1px solid var(--border);background:var(--paper);color:var(--dark);border-radius:8px;padding:0 12px;cursor:pointer}.drawer-scroll{height:calc(100% - 70px);overflow-y:auto;padding:14px 16px 24px}.drawer-scroll section{margin-bottom:18px}.drawer-scroll h2{font-size:13px;color:var(--clay);margin-bottom:7px}.drawer-scroll a{display:block;padding:10px;border-radius:8px;border-bottom:1px solid var(--border)}.drawer-scroll b{display:block}.drawer-scroll span{display:block;font-size:12px;color:var(--muted);margin-top:2px}.site-overlay{position:fixed;z-index:110;inset:0;background:rgba(42,40,36,.45);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.site-overlay.is-active{opacity:1;visibility:visible;pointer-events:auto}.lock-scroll{overflow:hidden}.search-layer{position:fixed;z-index:125;top:78px;left:0;right:0;visibility:hidden;pointer-events:none;opacity:0;transform:translateY(-8px);transition:.2s}.search-open .search-layer{visibility:visible;pointer-events:auto;opacity:1;transform:none}.search-card{width:min(760px,calc(100% - 32px));margin:14px auto;background:var(--deep);border:1px solid var(--border);border-radius:11px;padding:18px;box-shadow:var(--shadow)}.search-head{display:flex;justify-content:space-between;align-items:center}.search-card p{color:var(--muted)}.search-presets{display:flex;flex-wrap:wrap;gap:9px}.search-presets a{min-height:44px;display:flex;align-items:center;padding:0 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@media(max-width:760px){.rock-tabs{display:none}.page-main{padding-top:100px;padding-bottom:86px}.stone-line-inner{width:100%;padding:0 8px}.site-width{width:calc(100% - 32px)}.rock-bar{top:22px}.brand-link{min-width:0;flex:1;overflow:hidden}.brand-link span{white-space:nowrap}.rock-actions{gap:6px}.soft-button,.primary-mini{padding:0 12px}.duo-grid,.note-columns,.brand-panel,.observe-directory,.feature-list,.contact-paths,.read-points,.card-wall{grid-template-columns:1fr}.shelf-grid{grid-template-columns:repeat(2,1fr)}.observe-nav{position:static}.alpha-item{grid-template-columns:48px 1fr}.memo-item,.method-step,.topic-row{grid-template-columns:1fr;gap:6px}.status-line{margin-right:0}.footer-grid{grid-template-columns:repeat(2,1fr);gap:18px}.mobile-bottom{position:fixed;z-index:84;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(5,1fr);background:var(--warm);border-top:1px solid var(--border)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;font-size:12px;min-width:0}.mobile-bottom a.is-current{background:var(--clay);color:var(--warm)}.search-layer{top:0;bottom:0;background:var(--dark);display:flex;align-items:flex-start;overflow:auto}.search-card{margin-top:72px;background:var(--dark);color:var(--warm);border-color:rgba(247,243,235,.22)}.search-head strong{color:var(--warm)}.search-card p{color:var(--warm)}.search-presets a{color:var(--dark)}.search-card .icon-close{background:var(--warm)}.media-tall{height:320px}.app-icons{flex-direction:column;align-items:stretch}.icon-slot{align-self:flex-start}.page-intro{padding-top:14px}.intro-box{padding:20px}}
@media(max-width:420px){.stone-line span{max-width:260px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.shelf-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.rock-actions .soft-button,.rock-actions .primary-mini{font-size:13px;padding:0 10px}.brand-link img{max-width:135px}.page-main{padding-top:94px}}