:root{--bg:#F6EDE0;--deep:#EAD7C0;--paper:#FFFFFF;--soft:#E8D2B4;--ink:#3A2414;--text:#4A3220;--muted:#7A5634;--subtle:#9A7450;--brand:#C4843C;--brand2:#D9A05A;--brand3:#8B5A2B;--cream:#FFF6EA;--line:rgba(196,132,60,.18);--strong-line:rgba(196,132,60,.46);--shadow:0 12px 28px rgba(58,36,20,.08);--radius:10px;--wrap:960px}*{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",sans-serif;font-size:15px;line-height:1.7;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}.wrap{width:min(var(--wrap),calc(100% - 32px));margin-inline:auto}.skip-link{position:fixed;left:16px;top:-60px;z-index:9999;background:var(--paper);color:var(--ink);padding:10px 14px;border-radius:8px}.skip-link:focus{top:10px}.site-head{position:fixed;inset:0 0 auto 0;z-index:1000}.brand-strip{height:20px;background:var(--brand3);color:var(--cream);font-size:12px}.strip-inner{height:20px;display:flex;align-items:center;justify-content:space-between}.text-action{position:relative;border:0;background:transparent;color:var(--cream);min-width:44px;min-height:20px;padding:0 4px}.text-action:before{content:"";position:absolute;inset:-12px -8px}.brand-bar{height:54px;background:var(--paper);border-bottom:1px solid var(--line)}.brand-inner{height:54px;display:flex;align-items:center;justify-content:space-between;gap:16px}.brand-home{display:flex;align-items:center;min-height:44px;min-width:120px}.logo-slot img{height:24px;width:auto;max-width:180px}.logo-slot:has(img)+.brand-fallback{display:none}.brand-fallback{font-size:16px;font-weight:800;color:var(--ink)}.head-actions{display:flex;align-items:center;gap:8px;white-space:nowrap}.head-app,.menu-button{min-height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:8px;padding:0 14px;font-size:14px}.head-app{background:linear-gradient(135deg,var(--brand2) 0%,var(--brand) 55%,var(--brand3) 100%);color:var(--cream)}.menu-button{border:1px solid var(--strong-line);background:var(--paper);color:var(--ink)}.quick-bar{height:44px;background:var(--cream);border-bottom:1px solid var(--line)}.quick-inner{height:44px;display:flex;align-items:center;gap:12px}.knot-mark{width:18px;height:14px;border:2px solid var(--brand);border-radius:6px 3px 6px 3px;transform:rotate(-7deg)}.quick-link{font-size:13px;min-height:44px;padding:4px 10px;display:inline-flex;align-items:center;border:1px solid var(--brand);border-radius:999px;color:var(--ink)}.quick-link.is-current{background:var(--brand);color:var(--cream);box-shadow:0 0 0 2px var(--cream),0 0 0 3px var(--brand)}.site-main{padding-top:142px;min-height:70vh}.page-shell{padding:30px 0 48px}.hero-intro{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}.hero-intro .eyebrow,.section-kicker{font-size:13px;color:var(--brand3);font-weight:800;letter-spacing:.04em}.hero-intro h1,.page-heading h1{font-size:24px;line-height:1.3;color:var(--ink);margin:10px 0 8px}.hero-intro .lead{font-size:20px;color:var(--ink);font-weight:750;margin:0 0 10px}.hero-intro p,.page-heading p{margin:8px 0 0}.button-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.primary-btn,.secondary-btn{min-height:44px;padding:0 18px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;white-space:nowrap}.primary-btn{background:linear-gradient(135deg,var(--brand2) 0%,var(--brand) 55%,var(--brand3) 100%);color:var(--cream)}.secondary-btn{background:var(--paper);border:1px solid var(--brand);color:var(--ink)}a:hover,.text-action:hover,.menu-button:hover,.close-button:hover{filter:brightness(.97)}a:focus-visible,button:focus-visible{outline:3px solid rgba(196,132,60,.35);outline-offset:3px}.home-section,.content-section{margin-top:22px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}.home-section h2,.content-section h2{font-size:20px;color:var(--ink);margin:0 0 12px}.home-section h3,.content-section h3{font-size:16px;color:var(--ink);margin:14px 0 6px}.home-section p,.content-section p{margin:8px 0}.image-slot{background:var(--cream);border:1px solid var(--line);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;overflow:hidden}.image-slot img{width:100%;height:100%;object-fit:contain;object-position:center}.slot-176{height:176px}.slot-168{height:168px}.slot-160{height:160px}.slot-200{height:200px}.slot-320{height:320px}.knot-cut{display:grid;grid-template-columns:240px minmax(0,1fr);gap:24px;align-items:center}.knot-cut .image-slot{width:240px;height:176px;border-radius:38px 10px 38px 10px}.dual-wheat{display:grid;grid-template-columns:1fr 1fr;gap:18px}.dual-wheat article{background:var(--cream);padding:18px;border-radius:var(--radius);border:1px solid var(--line)}.dual-wheat .image-slot{margin-bottom:12px}.page-pair{display:grid;grid-template-columns:1fr 1fr;gap:16px}.page-card{background:var(--cream);border-left:4px solid var(--brand);padding:18px;border-radius:0 var(--radius) var(--radius) 0}.single-note{display:grid;grid-template-columns:1fr 220px;gap:20px;align-items:center}.single-note .image-slot{height:168px}.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.topic-grid article{background:var(--cream);padding:16px;border-radius:var(--radius);border:1px solid var(--line)}.status-list{display:grid;gap:10px}.status-row{display:grid;grid-template-columns:120px 1fr;gap:14px;align-items:center;background:var(--cream);border:1px solid var(--line);border-radius:var(--radius);padding:14px}.status-label{display:inline-flex;align-items:center;justify-content:center;min-height:34px;border-radius:999px;background:var(--brand);color:var(--cream);font-size:13px;font-weight:800}.app-wrap{display:grid;grid-template-columns:240px 1fr;gap:26px;align-items:start}.app-visual{display:grid;gap:12px}.app-visual .image-slot{width:240px;height:320px}.app-icon{width:48px;height:48px;border-radius:10px;background:var(--cream);border:1px solid var(--line);display:flex;align-items:center;justify-content:center}.app-icon img{width:48px;height:48px}.read-points{columns:2;column-gap:24px}.read-points p{break-inside:avoid}.faq-mini{display:grid;grid-template-columns:1fr 1fr;gap:14px}.faq-mini article{background:var(--cream);padding:16px;border-radius:var(--radius)}.brand-summary{border-top:3px solid var(--brand)}.page-heading{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);margin-bottom:20px}.page-heading .mini-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.page-heading .mini-links a{font-size:13px;background:var(--cream);border:1px solid var(--line);padding:6px 10px;border-radius:999px}.layout-cut{display:grid;grid-template-columns:240px 1fr;gap:26px}.layout-cut .cut-visual{height:176px;border-radius:36px 10px 36px 10px}.layout-dual{display:grid;grid-template-columns:1fr 1fr;gap:18px}.layout-page{display:grid;grid-template-columns:1fr 1fr;gap:18px}.layout-page article{background:var(--cream);border:1px solid var(--line);border-radius:var(--radius);padding:18px}.layout-page article:nth-child(even){transform:translateY(18px)}.detail-list{display:grid;gap:14px}.detail-item{padding:18px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius)}.detail-item h2{margin:0 0 8px;font-size:20px}.attention-list{display:grid;gap:12px}.attention-list article{display:grid;grid-template-columns:140px 1fr;gap:18px;padding:18px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius)}.attention-list strong{color:var(--brand3)}.checklist{counter-reset:item;display:grid;gap:12px}.checklist article{position:relative;padding:18px 18px 18px 62px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius)}.checklist article:before{counter-increment:item;content:counter(item);position:absolute;left:18px;top:18px;width:28px;height:28px;border-radius:50%;background:var(--brand);color:var(--cream);display:grid;place-items:center;font-weight:800}.method-flow{display:grid;gap:16px}.method-flow article{padding:20px;background:linear-gradient(90deg,var(--cream),var(--paper));border:1px solid var(--line);border-radius:var(--radius)}.album-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}.album-list article{padding:18px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius)}.center-cards{display:grid;gap:16px;max-width:760px;margin-inline:auto}.center-cards article{text-align:center;padding:22px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius)}.terms{display:grid;gap:16px}.terms section{padding:20px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius)}.terms h2{margin:0 0 8px}.contact-box{display:grid;grid-template-columns:1fr 1fr;gap:16px}.contact-box article{padding:20px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius)}.about-banner{height:200px;background:var(--cream);border:1px solid var(--line);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;margin-bottom:20px}.about-banner img{width:100%;height:100%}.faq-list{display:grid;gap:14px}.faq-list article{padding:20px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius)}.faq-list h2{font-size:16px;margin:0 0 8px}.site-footer{background:var(--brand3);color:var(--cream);padding:30px 0 84px;border-top:1px solid rgba(255,246,234,.35)}.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:22px}.footer-logo img{height:24px;width:auto}.footer-brand strong{display:block;font-size:16px}.footer-brand small{display:block;color:#f1d7b8;font-size:12px}.footer-groups{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.footer-groups h2{font-size:13px;margin:0 0 8px}.footer-groups a{display:block;font-size:13px;color:#f5e0c7;padding:3px 0}.footer-note{margin-top:22px;padding-top:18px;border-top:1px solid rgba(255,246,234,.25);font-size:13px;color:#f5e0c7}.footer-note p{margin:5px 0}.page-overlay{position:fixed;inset:0;background:rgba(58,36,20,.38);z-index:1190;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.page-overlay.is-active{opacity:1;visibility:visible;pointer-events:auto}.site-drawer{position:fixed;left:0;right:0;bottom:0;z-index:1200;background:var(--paper);max-height:220px;transform:translateY(110%);visibility:hidden;pointer-events:none;transition:transform .25s ease,visibility .25s;border-top:1px solid var(--strong-line);box-shadow:0 -16px 40px rgba(58,36,20,.18);overflow:auto}.site-drawer.is-open{transform:translateY(0);visibility:visible;pointer-events:auto}.drawer-head{position:sticky;top:0;background:var(--paper);z-index:2;display:flex;align-items:center;justify-content:space-between;padding:10px max(16px,calc((100% - var(--wrap))/2));border-bottom:1px solid var(--line)}.drawer-brand{display:flex;align-items:center;gap:8px}.drawer-logo img{height:24px;width:auto}.close-button{min-height:44px;min-width:60px;border:1px solid var(--line);background:var(--paper);color:var(--ink);border-radius:8px}.drawer-groups{width:min(var(--wrap),calc(100% - 32px));margin:0 auto;padding:12px 0 18px;display:grid;grid-template-columns:1.25fr 1.25fr .8fr 1.4fr;gap:18px}.drawer-groups h2{font-size:13px;margin:0 0 4px;color:var(--brand3)}.drawer-groups a{display:block;padding:3px 0}.drawer-groups strong{font-size:13px;color:var(--ink)}.drawer-groups span{display:block;font-size:12px;color:var(--muted);line-height:1.35}.search-panel{position:fixed;z-index:1210;top:74px;left:0;right:0;visibility:hidden;pointer-events:none;opacity:0;transition:.2s}.search-panel.is-open{visibility:visible;pointer-events:auto;opacity:1}.search-card{width:min(720px,calc(100% - 32px));margin:12px auto;background:var(--paper);border:1px solid var(--strong-line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}.search-head{display:flex;align-items:center;justify-content:space-between;gap:12px;color:var(--ink)}.search-card p{margin:8px 0;color:var(--muted)}.search-presets{display:flex;flex-wrap:wrap;gap:8px}.search-presets a{min-height:40px;padding:8px 14px;border-radius:999px;background:var(--cream);border:1px solid var(--line);display:inline-flex;align-items:center}.mobile-nav{display:none}.modal-open{overflow:hidden}@media(max-width:760px){.quick-bar{display:none}.site-main{padding-top:74px}.head-app,.menu-button{padding-inline:10px}.brand-home{min-width:90px}.home-section,.content-section,.hero-intro,.page-heading{padding:18px}.knot-cut,.layout-cut,.dual-wheat,.layout-dual,.page-pair,.layout-page,.single-note,.app-wrap,.contact-box,.album-list{grid-template-columns:1fr}.knot-cut .image-slot,.layout-cut .cut-visual,.app-visual .image-slot{width:100%}.topic-grid{grid-template-columns:1fr}.single-note{align-items:start}.app-visual{justify-items:start}.app-visual .image-slot{max-width:240px}.read-points{columns:1}.faq-mini{grid-template-columns:1fr}.status-row{grid-template-columns:100px 1fr}.attention-list article{grid-template-columns:1fr;gap:6px}.layout-page article:nth-child(even){transform:none}.footer-groups{grid-template-columns:1fr 1fr}.site-footer{padding-bottom:92px}.site-drawer{max-height:68vh}.drawer-groups{grid-template-columns:1fr 1fr;gap:14px}.search-panel{top:0;bottom:0;background:var(--brand3);padding-top:74px}.search-card{width:calc(100% - 32px);height:calc(100% - 90px);overflow:auto;background:var(--brand3);color:var(--cream);border-color:rgba(255,246,234,.35)}.search-head,.search-card p{color:var(--cream)}.search-card .close-button{background:transparent;border-color:rgba(255,246,234,.5);color:var(--cream)}.search-presets a{background:var(--cream);color:var(--ink)}.mobile-nav{position:fixed;display:grid;grid-template-columns:repeat(4,1fr);left:0;right:0;bottom:0;z-index:1100;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:var(--paper);border-top:1px solid var(--line)}.mobile-nav a{display:flex;align-items:center;justify-content:center;min-height:48px;font-size:13px}.mobile-nav a.is-current{background:var(--brand);color:var(--cream)}.page-shell{padding-top:20px}.hero-intro .lead{font-size:18px}}@media(max-width:480px){.footer-groups,.drawer-groups{grid-template-columns:1fr}.drawer-groups span{display:none}.drawer-groups a{padding:5px 0}.head-actions{gap:4px}.head-app,.menu-button{font-size:13px}.status-row{grid-template-columns:1fr}.status-label{justify-self:start;padding-inline:14px}}
