:root{--bg:#F6F0DC;--deep:#E6DCC0;--panel:#FBF7EA;--soft:#EFE6CE;--ink:#18140A;--text:#2A2414;--muted:#5A4E30;--quiet:#7A6E48;--gold:#6E5418;--honey:#C9A03A;--line:rgba(24,20,10,.12);--focus:rgba(110,84,24,.50);--shadow:0 12px 28px rgba(24,20,10,.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}body.locked{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}img{display:block;max-width:100%}.shell{width:min(960px,calc(100% - 32px));margin:0 auto}.site-head{position:fixed;inset:0 0 auto;z-index:900}.brand-strip{height:20px;background:var(--ink);color:var(--honey);font-size:12px}.strip-inner{height:20px;display:flex;align-items:center;justify-content:space-between}.strip-search{border:0;background:transparent;color:var(--honey);padding:0;cursor:pointer}.brand-bar{height:54px;background:var(--panel);border-bottom:1px solid var(--focus)}.brand-inner{height:54px;display:flex;align-items:center;justify-content:space-between;gap:12px}.brand-home{min-height:44px;display:flex;align-items:center}.brand-logo{height:24px;width:auto;object-fit:contain;object-position:center}.brand-home strong{font-size:16px;color:var(--ink)}.brand-actions{display:flex;align-items:center;gap:8px}.app-entry,.bag-button{min-height:44px;padding:0 14px;border-radius:16px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;white-space:nowrap}.app-entry{border:1px solid var(--gold);background:var(--panel)}.bag-button{border:1px solid var(--line);background:var(--soft);cursor:pointer}.leaf-nav{height:46px;background:var(--panel);border-bottom:1px solid var(--line)}.leaf-nav-inner{height:46px;display:flex;justify-content:flex-end;align-items:center;gap:24px}.leaf-link{min-height:44px;display:flex;align-items:center;gap:8px;color:var(--muted);font-size:13px}.leaf-shape{width:22px;height:14px;border:1px solid var(--gold);border-radius:10px 8px 10px 2px}.leaf-link.is-current{font-weight:700;color:var(--ink)}.leaf-link.is-current .leaf-shape{background:var(--honey);border-color:var(--honey)}.site-main{padding-top:120px;padding-bottom:28px;min-height:65vh}h1,h2,h3{color:var(--ink);margin-top:0}h1{font-size:24px;line-height:1.3;margin-bottom:14px}h2{font-size:20px;line-height:1.4;margin-bottom:10px}h3{font-size:16px;line-height:1.45;margin-bottom:8px}p{margin:0 0 14px}.eyebrow{font-size:13px;color:var(--gold);font-weight:700;letter-spacing:.08em;margin-bottom:8px}.lead{font-size:16px;line-height:1.8;color:var(--muted);max-width:800px}.page-hero{padding:34px 0 22px}.section{padding:26px 0;border-top:1px solid var(--line)}.section-deep{background:var(--deep)}.section-panel{background:var(--panel)}.btn-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.btn{height:42px;padding:0 16px;border-radius:16px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;white-space:nowrap}.btn-primary{background:linear-gradient(135deg,#18140A 0%,#C9A03A 100%);color:#FBF7EA}.btn-secondary{background:var(--panel);border:1px solid var(--gold);color:var(--ink)}a:hover{opacity:.88}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--focus);outline-offset:2px}.media-slot{background:var(--panel);border:1px solid var(--line);border-radius:18px;display:flex;align-items:center;justify-content:center;overflow:hidden}.media-slot img{width:100%;height:100%;object-fit:contain;object-position:center}.media-wide{height:180px}.media-vcut{width:min(260px,100%);height:200px}.media-medium{height:220px}.media-small{height:160px}.media-app{height:min(320px,70vw)}.media-icon{width:72px;height:72px}.media-banner{height:200px}.brand-cover{height:220px}.home-index{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:18px}.home-index a{min-height:44px;padding:0 12px;border:1px solid var(--line);background:var(--panel);border-radius:18px;display:flex;align-items:center;gap:8px}.home-index .leaf-shape{background:var(--honey);border-color:var(--honey)}.intro{padding:28px 0}.vcut{display:grid;grid-template-columns:minmax(180px,260px) 1fr;gap:22px;align-items:center}.double{display:grid;grid-template-columns:1fr 1fr;gap:18px}.card{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:18px}.card-media{padding:0;overflow:hidden}.card-media .copy{padding:18px}.ring-wrap{display:grid;grid-template-columns:1fr 1fr;gap:18px}.ring-card{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:24px}.ring-card:before{content:"";position:absolute;inset:10px;border:1px solid rgba(110,84,24,.28);border-radius:14px;pointer-events:none}.ring-card>*{position:relative}.archive-head{margin-bottom:14px}.archive-cards{display:grid;grid-template-columns:1fr 1fr;gap:18px}.phases{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.phase{background:var(--panel);border-radius:18px;padding:18px;border-top:4px solid var(--honey)}.status-list{display:grid;gap:10px}.status{display:grid;grid-template-columns:130px 1fr auto;gap:14px;align-items:center;background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:14px}.tag{font-size:13px;font-weight:700;color:var(--gold)}.app-sandwich{max-width:780px;margin:0 auto}.app-mid{display:grid;grid-template-columns:72px 1fr;gap:14px;align-items:start;margin:14px 0}.app-mid .media-app{grid-column:1/-1}.method-grid,.faq-home{display:grid;grid-template-columns:1fr 1fr;gap:16px}.brand-statement{max-width:820px;border-left:4px solid var(--honey);padding-left:18px}
/* 内页差异 */.page-double .double article{min-height:100%}.page-vcut .vcut-row{display:grid;grid-template-columns:220px 1fr;gap:20px;padding:20px 0;border-bottom:1px solid var(--line)}.page-vcut .vcut-row:last-child{border-bottom:0}.page-ring .ring-section{display:grid;grid-template-columns:1fr 1fr;gap:18px}.page-ring .ring-section article{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:24px}.page-ring .ring-section article:after{content:"";position:absolute;inset:11px;border:1px solid rgba(110,84,24,.25);border-radius:14px;pointer-events:none}.page-ring .ring-section article>*{position:relative}.single{max-width:790px}.prose{padding:20px 0;border-bottom:1px solid var(--line)}.prose:last-child{border-bottom:0}.topic-list{display:grid;gap:14px}.topic-list article{display:grid;grid-template-columns:180px 1fr;gap:18px;background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:18px}.center-cards{display:grid;gap:18px;max-width:760px;margin:0 auto}.center-cards article{text-align:center;background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:22px}.memo-list{display:grid;gap:14px}.memo{background:var(--panel);border-left:4px solid var(--honey);border-radius:0 18px 18px 0;padding:18px}.terms,.faq-list{display:grid;gap:16px}.term,.faq-item{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:20px}.help-grid,.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.callout{background:var(--ink);color:var(--bg);border-radius:20px;padding:22px}.callout h2,.callout h3{color:var(--honey)}.callout p{color:var(--bg)}.about-stack{display:grid;gap:18px}
.site-footer{background:var(--ink);color:var(--bg);border-top:1px solid var(--honey);padding:26px 0 calc(26px + env(safe-area-inset-bottom));font-size:13px}.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}.footer-logo{height:24px;width:auto;object-fit:contain}.footer-brand span{color:var(--honey);letter-spacing:.08em}.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.footer-grid h2{font-size:13px;color:var(--honey);margin-bottom:8px}.footer-grid a{display:block;min-height:30px;color:var(--bg)}.footer-note{border-top:1px solid rgba(201,160,58,.35);padding-top:16px;margin-top:18px}.overlay{position:fixed;inset:0;z-index:980;background:rgba(24,20,10,.46);opacity:0;visibility:hidden;pointer-events:none;transition:.18s}.overlay.show{opacity:1;visibility:visible;pointer-events:auto}.site-bag{position:fixed;right:16px;top:84px;z-index:1000;width:300px;max-height:350px;background:var(--panel);border:1px solid var(--focus);border-radius:20px;box-shadow:var(--shadow);opacity:0;visibility:hidden;pointer-events:none;transform:translateY(-12px);transition:.18s}.site-bag.open{opacity:1;visibility:visible;pointer-events:auto;transform:none}.bag-head{display:flex;align-items:center;justify-content:space-between;padding:12px;border-bottom:1px solid var(--line)}.bag-brand{display:flex;gap:8px;align-items:center}.bag-logo{height:24px;width:auto;object-fit:contain}.close-button{width:44px;height:44px;border:1px solid var(--line);background:var(--soft);border-radius:16px;font-size:22px;cursor:pointer}.bag-scroll{max-height:280px;overflow:auto;padding:8px 10px 12px}.bag-scroll section{padding:6px 0}.bag-scroll h2{font-size:13px;color:var(--gold);margin:0 0 4px}.bag-scroll a{display:block;padding:8px;border-radius:14px}.bag-scroll a:hover{background:var(--soft);opacity:1}.bag-scroll strong{display:block;font-size:14px}.bag-scroll span{display:block;font-size:12px;color:var(--muted);line-height:1.5}.search-panel{position:fixed;left:0;right:0;top:74px;z-index:995;opacity:0;visibility:hidden;pointer-events:none;transform:translateY(-10px);transition:.18s}.search-panel.open{opacity:1;visibility:visible;pointer-events:auto;transform:none}.search-card{width:min(760px,calc(100% - 32px));margin:10px auto 0;background:var(--panel);border:1px solid var(--focus);border-radius:20px;box-shadow:var(--shadow);padding:18px}.search-head{display:flex;justify-content:space-between;gap:16px}.search-head strong{font-size:20px}.search-head p{font-size:13px;color:var(--muted);margin:2px 0 0}.search-card label{display:block;font-size:13px;color:var(--muted);margin:12px 0 6px}.search-card input{width:100%;height:44px;border:1px solid var(--line);border-radius:16px;background:#fffdf6;padding:0 12px}.search-links{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:12px}.search-links a{padding:10px 12px;border:1px solid var(--line);border-radius:16px}.search-links span{display:block;font-size:12px;color:var(--muted)}.search-empty{margin:12px 0 0}.mobile-bottom{display:none}
@media(max-width:760px){.leaf-nav{display:none}.site-main{padding-top:74px;padding-bottom:72px}.shell{width:calc(100% - 32px)}.app-entry,.bag-button{padding:0 10px}.vcut,.double,.ring-wrap,.archive-cards,.phases,.method-grid,.faq-home,.page-ring .ring-section,.help-grid,.contact-grid{grid-template-columns:1fr}.vcut .media-vcut{width:100%}.status{grid-template-columns:1fr;gap:4px}.page-vcut .vcut-row,.topic-list article{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.site-bag{right:6%;top:74px;width:88%;max-height:72vh}.bag-scroll{max-height:calc(72vh - 69px)}.search-panel{inset:0;background:var(--ink);transform:none}.search-panel.open{transform:none}.search-card{width:100%;height:100%;margin:0;border:0;border-radius:0;background:var(--ink);color:var(--bg);overflow:auto;padding:24px 16px}.search-head strong{color:var(--honey)}.search-head p,.search-card label,.search-empty{color:var(--bg)}.search-links{grid-template-columns:1fr}.search-links a{background:var(--panel);color:var(--ink)}.search-links span{color:var(--muted)}.search-card input{background:#fffdf6}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:940;display:grid;grid-template-columns:repeat(4,1fr);min-height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:var(--panel);border-top:1px solid var(--focus)}.mobile-bottom a{min-height:48px;display:flex;align-items:center;justify-content:center;font-size:13px}.mobile-bottom a.is-current{background:var(--honey);font-weight:800}.media-app{height:min(320px,88vw)}}
@media(max-width:420px){.app-entry,.bag-button{font-size:13px;padding:0 8px}.footer-grid{grid-template-columns:1fr 1fr;gap:14px}}