:root{--bg:#F6EDE4;--deep:#E8D8C8;--card:#FFF8F2;--sub:#F0E4D6;--ink:#1A1612;--text:#2A241C;--muted:#5A5048;--soft:#7A7068;--orange:#E07030;--brown:#B06030;--line:rgba(26,22,18,.12);--accent:rgba(224,112,48,.50);--shadow:0 12px 28px rgba(26,22,18,.10)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.7 system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif;overflow-x: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}.lock-scroll{overflow:hidden}.top-strip{position:fixed;z-index:70;top:0;left:0;right:0;height:20px;background:var(--ink);color:#F6EDE4;font-size:12px}.top-strip__inner,.site-head__inner,.quick-nav__inner,.page-main,.footer-inner{width:min(100% - 32px,960px);margin:0 auto}.top-strip__inner{height:20px;display:flex;align-items:center;justify-content:space-between}.text-button{border:0;background:transparent;color:#F6EDE4;padding:0 4px;min-height:20px}.site-head{position:fixed;z-index:65;top:20px;left:0;right:0;height:54px;background:var(--card);border-bottom:1px solid var(--orange)}.site-head__inner{height:54px;display:flex;align-items:center;justify-content:space-between}.brand-link{display:inline-flex;align-items:center;min-width:44px;min-height:44px}.brand-logo{height:24px;width:auto}.brand-fallback{font-weight:800;font-size:16px;color:var(--ink)}.head-actions{display:flex;align-items:center;gap:8px}.head-app,.menu-button{height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:4px;padding:0 13px;font-size:14px}.head-app{border:1px solid var(--orange);background:var(--card);color:var(--ink)}.menu-button{border:1px solid var(--ink);background:var(--ink);color:var(--card)}.quick-nav{position:fixed;z-index:60;top:74px;left:0;right:0;height:46px;background:var(--card);border-bottom:1px solid var(--line)}.quick-nav__inner{height:46px;display:flex;align-items:center;gap:28px}.quick-nav a{display:flex;align-items:center;gap:7px;min-height:44px;font-size:13px}.quick-mark{width:18px;height:18px;border:1px solid var(--ink);border-radius:2px;background:transparent}.quick-nav a.is-current .quick-mark{background:var(--orange);border-color:var(--orange)}.page-main{padding-top:146px;padding-bottom:52px;min-height:70vh}h1,h2,h3,p{margin-top:0}h1{font-size:24px;line-height:1.3;color:var(--ink);letter-spacing:.01em}h2{font-size:20px;line-height:1.45;color:var(--ink)}h3{font-size:16px;line-height:1.5;color:var(--ink)}p{margin-bottom:14px}.eyebrow{display:inline-flex;align-items:center;min-height:28px;padding:3px 9px;background:var(--ink);color:var(--card);border-radius:3px;font-size:12px;margin-bottom:12px}.lead{font-size:16px;line-height:1.8;color:var(--muted);max-width:780px}.section{margin:34px 0}.surface{background:var(--card);border:1px solid var(--line);border-radius:5px;box-shadow:var(--shadow)}.button-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.btn{min-height:44px;padding:0 17px;display:inline-flex;align-items:center;justify-content:center;border-radius:4px;font-size:14px}.btn-primary{background:linear-gradient(135deg,#1A1612 0%,#E07030 100%);color:#FFF8F2}.btn-secondary{background:var(--card);border:1px solid var(--orange);color:var(--ink)}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(224,112,48,.42);outline-offset:2px}.btn:hover,.head-app:hover,.quick-nav a:hover{transform:translateY(-1px)}.image-slot{background:var(--card);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;overflow:hidden}.image-slot img{width:100%;height:100%}.image-slot.empty::after{content:"";display:block;width:58%;height:1px;background:var(--accent)}.index-links{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px}.index-links a{background:var(--orange);color:var(--card);padding:8px 12px;border-radius:4px;font-size:13px}.hero-home{padding:22px 0 14px;border-bottom:1px solid var(--line)}.home-phrase{font-size:18px;color:var(--ink);font-weight:700;margin-bottom:10px}.slant-row{display:grid;grid-template-columns:minmax(0,300px) 1fr;gap:24px;align-items:center}.slant-media{height:176px;clip-path:polygon(0 0,100% 0,88% 100%,0 100%);background:var(--card)}.slant-copy{padding:18px 0}.two-cards{display:grid;grid-template-columns:1fr 1fr;gap:14px}.feature-card{padding:18px}.feature-card .mini-media{height:150px;margin-bottom:14px}.folio-pair{display:grid;grid-template-columns:1.08fr .92fr;gap:18px}.folio{padding:22px;position:relative;background:var(--card);border:1px solid var(--line)}.folio:before{content:"";position:absolute;inset:7px;border:1px solid rgba(224,112,48,.24);pointer-events:none}.folio .mini-media{height:154px;margin-bottom:14px}.rack-head{height:168px;margin-bottom:14px}.rack-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.rack-card{padding:20px}.period-wrap{display:grid;grid-template-columns:240px 1fr;gap:20px;align-items:start}.period-media{height:176px}.period-list{display:grid;gap:9px}.period-item{padding:12px 14px;background:var(--card);border-left:4px solid var(--orange)}.status-box{display:grid;grid-template-columns:220px 1fr;gap:20px}.status-media{height:168px}.status-list{display:grid;gap:8px}.status-row{display:grid;grid-template-columns:1fr auto;gap:12px;align-items:center;padding:11px 13px;background:var(--card);border:1px solid var(--line)}.status-pill{font-size:12px;padding:3px 8px;border-radius:3px;background:var(--ink);color:var(--card)}.app-split{display:grid;grid-template-columns:minmax(0,260px) 1fr;gap:26px;align-items:center}.app-visual{height:320px}.app-copy-head{display:flex;align-items:center;gap:12px}.app-icon{width:48px;height:48px}.plain-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.plain-card{padding:18px;background:var(--card);border:1px solid var(--line)}.faq-mini{display:grid;gap:10px}.faq-mini article{padding:16px 18px;background:var(--card);border:1px solid var(--line)}.brand-box{padding:22px;background:var(--ink);color:#F6EDE4}.brand-box h2{color:#FFF8F2}.brand-box p{color:#F6EDE4}.page-intro{padding:18px 0 20px;border-bottom:1px solid var(--line)}.inner-image{height:220px;margin:18px 0}.layout-double{display:grid;grid-template-columns:1fr 1fr;gap:16px}.layout-double article{padding:20px;background:var(--card);border:1px solid var(--line)}.layout-double .inner-image{grid-column:1/-1;height:220px;margin:0}.layout-slant{display:grid;grid-template-columns:minmax(0,300px) 1fr;gap:22px;align-items:start}.layout-slant .inner-image{height:220px;clip-path:polygon(0 0,100% 0,86% 100%,0 100%);margin:0;position:sticky;top:136px}.slant-stack{display:grid;gap:12px}.slant-stack article{padding:18px;background:var(--card);border-left:4px solid var(--orange)}.layout-folio{display:grid;grid-template-columns:1fr 1fr;gap:18px}.layout-folio article{padding:22px;background:var(--card);border:1px solid var(--line);position:relative}.layout-folio article:after{content:"";position:absolute;left:14px;right:14px;bottom:10px;height:1px;background:var(--accent)}.layout-single{max-width:760px;margin:0 auto}.layout-single .inner-image{height:230px}.layout-single article{padding:18px 0;border-bottom:1px solid var(--line)}.layout-period{display:grid;gap:18px}.layout-period article{display:grid;grid-template-columns:150px 1fr;gap:20px;padding:18px;background:var(--card);border:1px solid var(--line)}.layout-period article h2{margin:0;color:var(--orange)}.layout-status{display:grid;gap:10px}.layout-status article{display:grid;grid-template-columns:140px 1fr auto;gap:16px;align-items:start;padding:16px;background:var(--card);border:1px solid var(--line)}.layout-status .state{font-size:12px;background:var(--ink);color:var(--card);padding:4px 8px;border-radius:3px}.layout-check{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.layout-check article{padding:18px 18px 18px 46px;background:var(--card);border:1px solid var(--line);position:relative}.layout-check article:before{content:"✓";position:absolute;left:16px;top:16px;width:20px;height:20px;display:grid;place-items:center;border:1px solid var(--orange);color:var(--orange);border-radius:3px;font-weight:800}.method-list{display:grid;gap:14px;counter-reset:method}.method-list article{counter-increment:method;display:grid;grid-template-columns:52px 1fr;gap:16px;padding:18px 0;border-bottom:1px solid var(--line)}.method-list article:before{content:counter(method,decimal-leading-zero);font-weight:800;font-size:22px;color:var(--orange)}.topic-list{display:grid;gap:12px}.topic-list article{display:grid;grid-template-columns:180px 1fr;gap:20px;padding:18px;background:var(--card);border:1px solid var(--line)}.topic-list h2{margin:0}.center-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.center-cards article{text-align:center;padding:22px;background:var(--card);border:1px solid var(--line)}.center-cards .wide{grid-column:1/-1}.term-sections{display:grid;gap:16px}.term-sections article{padding:20px;background:var(--card);border:1px solid var(--line)}.install-steps{display:grid;gap:12px}.install-steps article{padding:18px;background:var(--card);border-left:4px solid var(--orange)}.faq-list{display:grid;gap:12px}.faq-list article{padding:18px;background:var(--card);border:1px solid var(--line)}.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.contact-grid article{padding:20px;background:var(--card);border:1px solid var(--line)}.about-banner{height:200px;margin:16px 0 24px}.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.about-grid article{padding:20px;background:var(--card);border:1px solid var(--line)}.site-footer{background:var(--ink);color:#F6EDE4;border-top:1px solid var(--orange);padding:30px 0 72px}.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:24px}.footer-brand div{display:flex;gap:8px;align-items:baseline}.footer-brand strong{font-size:18px;color:#FFF8F2}.footer-brand span{font-size:12px;color:#E8D8C8}.footer-logo-wrap{min-width:44px;min-height:44px;display:flex;align-items:center}.footer-logo{height:24px;width:auto}.footer-fallback{font-weight:800}.footer-groups{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.footer-groups section{display:flex;flex-direction:column;gap:7px}.footer-groups h2{font-size:13px;color:#FFF8F2;margin-bottom:2px}.footer-groups a{font-size:13px;color:#F6EDE4}.footer-note{font-size:13px;color:#E8D8C8;max-width:800px;margin:24px 0 14px}.footer-bottom{display:flex;gap:16px;flex-wrap:wrap;font-size:13px;color:#E8D8C8}.page-shade{position:fixed;z-index:80;inset:0;background:rgba(26,22,18,.48)}.page-shade[hidden],.menu-layer[hidden],.search-layer[hidden]{display:none!important;visibility:hidden!important;pointer-events:none!important}.menu-layer{position:fixed;z-index:90;inset:0;display:flex;justify-content:center;align-items:flex-start;padding-top:32px;pointer-events:none}.menu-panel{width:320px;max-height:360px;overflow:auto;background:var(--card);border:1px solid var(--orange);box-shadow:var(--shadow);padding:14px;pointer-events:auto}.menu-panel__head{position:sticky;top:-14px;background:var(--card);display:flex;align-items:center;justify-content:space-between;padding:10px 0 8px;border-bottom:1px solid var(--line);z-index:1}.menu-brand{display:flex;align-items:center;gap:8px}.menu-logo{height:24px;width:auto}.close-button{min-height:40px;padding:0 12px;border:1px solid var(--orange);background:var(--card);color:var(--ink);border-radius:4px}.menu-group{padding:10px 0;border-bottom:1px solid var(--line)}.menu-group h2{font-size:13px;margin:0 0 6px;color:var(--orange)}.menu-group a{display:grid;grid-template-columns:62px 1fr;gap:8px;padding:7px 2px}.menu-group b{font-size:13px}.menu-group span{font-size:12px;color:var(--muted)}.search-layer{position:fixed;z-index:95;left:0;right:0;top:74px;display:flex;justify-content:center;pointer-events:none}.search-card{width:min(92%,620px);background:var(--card);border:1px solid var(--orange);box-shadow:var(--shadow);padding:18px;pointer-events:auto}.search-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.search-card label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}.search-card input{width:100%;height:44px;border:1px solid var(--line);background:#fff;padding:0 12px;color:var(--ink);border-radius:4px}.search-links{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.search-links a{padding:8px 12px;background:var(--sub);border:1px solid var(--line);border-radius:4px}.mobile-nav{display:none}@media(max-width:720px){.quick-nav{display:none}.page-main{padding-top:100px;padding-bottom:calc(78px + env(safe-area-inset-bottom))}.top-strip__inner,.site-head__inner,.page-main,.footer-inner{width:calc(100% - 32px)}.head-actions{gap:6px}.head-app,.menu-button{padding:0 10px}.slant-row,.period-wrap,.status-box,.app-split,.layout-slant,.topic-list article{grid-template-columns:1fr}.slant-media{clip-path:none;height:176px}.two-cards,.folio-pair,.rack-grid,.plain-grid,.layout-double,.layout-folio,.layout-check,.center-cards,.contact-grid,.about-grid{grid-template-columns:1fr}.layout-double .inner-image,.center-cards .wide{grid-column:auto}.layout-slant .inner-image{position:static;clip-path:none;height:210px}.layout-period article,.layout-status article{grid-template-columns:1fr}.layout-status article .state{justify-self:start}.topic-list article h2{margin-bottom:4px}.app-visual{height:300px}.footer-groups{grid-template-columns:repeat(2,1fr)}.site-footer{padding-bottom:84px}.mobile-nav{position:fixed;z-index:55;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:var(--card);border-top:1px solid var(--line)}.mobile-nav a{min-height:48px;display:flex;align-items:center;justify-content:center;font-size:13px}.mobile-nav a.is-current{background:var(--orange);color:var(--ink);font-weight:700}.menu-layer{padding-top:24px}.menu-panel{width:88%;max-height:360px}.search-layer{top:0;bottom:0;background:var(--ink);align-items:stretch}.search-card{width:100%;height:100%;border:0;background:var(--ink);color:#F6EDE4;box-shadow:none;padding:24px 16px;padding-top:calc(24px + env(safe-area-inset-top))}.search-head strong{color:#FFF8F2}.search-card label{color:#E8D8C8}.search-card input{background:#FFF8F2;color:var(--ink)}.search-links a{background:#2b241e;border-color:rgba(255,248,242,.18);color:#FFF8F2}.search-card .close-button{background:transparent;color:#FFF8F2;border-color:var(--orange)}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn:hover,.head-app:hover,.quick-nav a:hover{transform:none}}