:root{
  --bg:#F6F0DC;--deep:#E6DCC0;--paper:#FBF7EA;--soft:#EFE6CE;--ink:#18140A;--text:#2A2414;--muted:#5A4E30;--assist:#7A6E48;--gold:#6E5418;--honey:#C9A03A;--border:rgba(24,20,10,.12);--strong-border:rgba(110,84,24,.50);--shadow:0 12px 28px rgba(24,20,10,.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",sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{color:inherit}
img{max-width:100%;display:block}
.skip-link{position:fixed;left:12px;top:-60px;z-index:9999;background:var(--paper);padding:8px 12px;border:1px solid var(--gold);border-radius:8px}.skip-link:focus{top:8px}
.site-header{position:fixed;inset:0 0 auto;z-index:1000}.jia-edge{height:20px;background:var(--ink);color:var(--honey);font-size:12px}.top-inner,.head-inner,.leaf-inner,.footer-inner,.content-shell{width:min(960px,calc(100% - 32px));margin:auto}.top-inner,.head-inner{height:100%;display:flex;align-items:center;justify-content:space-between}.text-button,.bag-button,.close-button{border:0;background:transparent;cursor:pointer}.text-button{color:var(--honey);min-height:20px;padding:0 4px}.jia-head{height:54px;background:var(--paper);border-bottom:1px solid var(--strong-border)}.brand-link{display:flex;align-items:center;min-height:44px}.brand-logo,.footer-logo,.bag-logo{height:24px;width:auto;object-fit:contain}.brand-fallback{font-weight:800;font-size:16px;color:var(--ink)}.head-actions{display:flex;align-items:center;gap:8px}.mini-app,.bag-button{min-height:44px;display:inline-flex;align-items:center;justify-content:center;padding:0 14px;border-radius:10px}.mini-app{background:linear-gradient(135deg,var(--ink),var(--honey));color:var(--paper)}.bag-button{border:1px solid var(--gold);background:var(--paper)}
.leaf-nav{height:46px;background:var(--paper);border-bottom:1px solid var(--border)}.leaf-inner{height:100%;display:flex;align-items:center;justify-content:center;gap:44px}.leaf-link{min-height:44px;display:inline-flex;align-items:center;gap:8px;font-size:13px}.leaf-shape{width:22px;height:14px;border:1px solid var(--gold);border-radius:10px 8px 10px 2px;display:inline-block;transform:rotate(-7deg)}.leaf-link.is-current .leaf-shape{background:var(--honey)}
.site-main{padding-top:144px;min-height:70vh;padding-bottom:56px}.content-shell{padding-top:26px}.page-hero{margin-bottom:28px}.eyebrow{font-size:13px;color:var(--gold);font-weight:700;letter-spacing:.08em}.page-hero h1,.home-intro h1{font-size:24px;line-height:1.3;color:var(--ink);margin:8px 0 10px}.lead{font-size:16px;color:var(--muted);max-width:760px}.section-title{font-size:20px;line-height:1.35;color:var(--ink);margin:0 0 12px}.card-title{font-size:16px;line-height:1.45;color:var(--ink);margin:0 0 8px}.muted{color:var(--muted)}.assist{color:var(--assist)}
.primary-button,.secondary-button{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 18px;border-radius:10px;font-size:14px;margin-top:12px}.primary-button{background:linear-gradient(135deg,var(--ink) 0%,var(--honey) 100%);color:var(--paper)}.secondary-button{background:var(--paper);border:1px solid var(--gold);color:var(--ink)}a:hover,.text-button:hover,.bag-button:hover,.close-button:hover{opacity:.82}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(201,160,58,.45);outline-offset:2px}
.panel{background:var(--paper);border:1px solid var(--border);border-radius:18px;box-shadow:var(--shadow)}.section-block{margin:28px 0}.media-slot{background:var(--paper);border:1px solid var(--border);border-radius:18px;display:flex;align-items:center;justify-content:center;overflow:hidden;min-height:120px}.media-slot img{width:100%;height:100%;object-fit:contain;object-position:center}.media-slot.tall{height:300px}.media-slot.banner{height:200px}.media-slot.square{height:220px}.media-slot.slim{height:200px;max-width:260px}.media-slot.small-icon{height:72px;width:72px;min-height:72px;border-radius:18px}.media-slot.small-icon img{width:48px;height:48px}
.leaf-index{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px}.leaf-index a{display:inline-flex;align-items:center;gap:7px;background:var(--paper);border:1px solid var(--border);border-radius:999px;padding:8px 12px}.leaf-index i{width:18px;height:11px;border:1px solid var(--gold);border-radius:9px 7px 9px 2px}.home-intro{padding:26px 0 12px}.home-intro p{max-width:760px}.home-stack{display:grid;gap:28px}.vertical-cut{display:grid;grid-template-columns:minmax(180px,260px) 1fr;gap:22px;align-items:stretch}.vertical-cut .copy{padding:26px}.double-columns{display:grid;grid-template-columns:1fr 1fr;gap:18px}.double-columns article{padding:22px}.double-columns .media-slot{margin-bottom:14px}.return-layout{display:grid;grid-template-columns:1fr 1fr;grid-template-areas:"a b" "a c";gap:18px}.return-layout .big{grid-area:a;padding:22px}.return-layout .side-one{grid-area:b;padding:22px}.return-layout .side-two{grid-area:c;padding:22px}.shelf-cards{display:grid;grid-template-columns:1fr 1fr;gap:18px}.shelf-cards article{padding:22px}.phase-strip{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px}.phase-strip article{padding:20px;background:var(--soft);border-radius:18px;border:1px solid var(--border)}.status-list{display:grid;gap:10px}.status-row{display:flex;gap:14px;align-items:flex-start;padding:16px 18px;border:1px solid var(--border);border-radius:16px;background:var(--paper)}.status-tag{flex:0 0 auto;background:var(--ink);color:var(--paper);border-radius:999px;padding:4px 10px;font-size:12px}.app-sandwich{padding:22px}.app-media-row{display:flex;gap:16px;align-items:center;justify-content:center;margin:18px 0}.app-media-row .tall{width:min(100%,360px)}.text-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.text-grid article,.method-list article,.policy-list article,.topic-list article,.memo-list article{padding:22px}.method-list,.policy-list,.topic-list,.memo-list{display:grid;gap:16px}.faq-grid{display:grid;gap:14px}.faq-item{padding:20px}.faq-item h2,.faq-item h3{font-size:16px;margin:0 0 8px;color:var(--ink)}
/* 内页差异布局 */
.layout-double .story-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:18px}.layout-double .story-grid>section{padding:22px}.layout-vertical .split-stage{display:grid;grid-template-columns:240px 1fr;gap:22px}.layout-vertical .split-copy{padding:24px}.layout-return .return-frame{display:grid;grid-template-columns:1.05fr .95fr;grid-template-areas:"main aside" "main foot";gap:18px}.layout-return .return-main{grid-area:main;padding:24px}.layout-return .return-aside{grid-area:aside;padding:24px}.layout-return .return-foot{grid-area:foot;padding:24px}.layout-single .single-column{max-width:760px;margin:auto}.layout-single .single-column section{padding:24px;margin-bottom:16px}.layout-phases .phase-column{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.layout-phases .phase-column section{padding:22px}.layout-center .center-card{max-width:760px;margin:auto;padding:28px;text-align:left}.layout-center .center-card+.center-card{margin-top:16px}.layout-sandwich .sandwich-page{max-width:820px;margin:auto}.layout-sandwich .sandwich-page>section{padding:24px;margin:16px 0}.layout-policy .policy-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.layout-policy .policy-grid section{padding:22px}.contact-box{padding:24px;background:var(--deep);border-radius:18px}.quote-line{border-left:4px solid var(--honey);padding-left:16px;color:var(--muted);margin:18px 0}
.site-footer{background:var(--ink);color:var(--bg);border-top:1px solid var(--honey);padding:34px 0 28px;font-size:13px}.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:22px}.footer-brand div{display:flex;flex-direction:column}.footer-brand span{color:var(--honey);font-size:11px}.footer-groups{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.footer-groups section{display:flex;flex-direction:column;gap:6px}.footer-groups h2{font-size:13px;color:var(--honey);margin:0 0 4px}.footer-note{color:#d9cfb7;margin:24px 0 8px}.copyright{color:#bfb395;margin:0}
.page-overlay{position:fixed;inset:0;background:rgba(24,20,10,.36);z-index:1400;opacity:0;visibility:hidden;pointer-events:none;transition:.18s}.page-overlay.is-open{opacity:1;visibility:visible;pointer-events:auto}.nav-bag{position:fixed;z-index:1500;right:16px;top:82px;width:300px;max-height:350px;background:var(--paper);border:1px solid var(--strong-border);border-radius:18px;box-shadow:0 20px 60px rgba(24,20,10,.28);transform:translateY(-16px);opacity:0;visibility:hidden;pointer-events:none;transition:.2s;overflow:hidden}.nav-bag.is-open{transform:translateY(0);opacity:1;visibility:visible;pointer-events:auto}.bag-top{height:58px;padding:0 14px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border)}.bag-brand{display:flex;align-items:center;gap:8px}.close-button{min-height:44px;padding:0 8px}.bag-scroll{max-height:292px;overflow:auto;padding:10px 12px 16px}.bag-scroll section+section{margin-top:10px}.bag-scroll h2{font-size:12px;color:var(--gold);margin:0 0 4px}.bag-scroll a{display:block;padding:7px 8px;border-radius:10px}.bag-scroll a:hover{background:var(--soft);opacity:1}.bag-scroll strong{display:block;font-size:13px}.bag-scroll span{display:block;color:var(--muted);font-size:11px;line-height:1.45}
.search-panel{position:fixed;z-index:1510;left:50%;top:82px;width:min(680px,calc(100% - 32px));transform:translate(-50%,-14px);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.search-panel.is-open{transform:translate(-50%,0);opacity:1;visibility:visible;pointer-events:auto}.search-card{background:var(--paper);border:1px solid var(--strong-border);border-radius:18px;box-shadow:0 20px 60px rgba(24,20,10,.28);padding:18px}.search-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}.search-card label{display:block;color:var(--muted);margin-bottom:8px}.search-card input{width:100%;height:44px;background:#fffdf5;border:1px solid var(--border);border-radius:10px;padding:0 12px;color:var(--ink)}.search-presets{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.search-presets a{border:1px solid var(--gold);border-radius:999px;padding:7px 12px}.modal-open{overflow:hidden}.mobile-nav{display:none}
@media(max-width:760px){
  .top-inner,.head-inner,.leaf-inner,.footer-inner,.content-shell{width:calc(100% - 32px)}
  .leaf-nav{display:none}.site-main{padding-top:90px;padding-bottom:82px}.jia-head{height:54px}.head-actions{gap:4px}.mini-app,.bag-button{padding:0 10px}.brand-fallback{font-size:14px}
  .vertical-cut,.double-columns,.return-layout,.shelf-cards,.phase-strip,.text-grid,.layout-double .story-grid,.layout-vertical .split-stage,.layout-return .return-frame,.layout-phases .phase-column,.layout-policy .policy-grid{grid-template-columns:1fr;grid-template-areas:none}
  .return-layout .big,.return-layout .side-one,.return-layout .side-two,.layout-return .return-main,.layout-return .return-aside,.layout-return .return-foot{grid-area:auto}
  .media-slot.slim{max-width:none;width:100%}.footer-groups{grid-template-columns:1fr 1fr}.nav-bag{top:78px;right:6%;width:88%;max-height:350px}.search-panel{inset:0;width:100%;transform:none;background:var(--ink);padding:74px 16px 72px;color:var(--honey)}.search-panel.is-open{transform:none}.search-card{height:100%;background:var(--ink);border:0;border-radius:0;box-shadow:none;padding:18px 0}.search-card label{color:var(--bg)}.search-head{color:var(--honey)}.search-card .close-button{color:var(--honey)}.search-presets a{color:var(--honey);border-color:var(--honey)}
  .mobile-nav{position:fixed;z-index:1300;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(--paper);border-top:1px solid var(--strong-border)}.mobile-nav a{display:flex;align-items:center;justify-content:center;min-height:48px;font-size:13px}.mobile-nav a.is-current{background:var(--honey);color:var(--ink);font-weight:700}
  .app-media-row{flex-direction:column}.media-slot.tall{height:280px}.media-slot.banner{height:180px}.page-hero{margin-bottom:22px}
}

.pad-24{padding:24px}.pad-26{padding:26px}.mt-18{margin-top:18px}
/* 页面级差异排版，避免内容页套用同一骨架 */
body[data-page="jiabei"] .memo-list{grid-template-columns:1fr 1fr}
body[data-page="jiabei"] .memo-list article:first-child{grid-column:1 / -1}
body[data-page="kanjia"] .method-list article:nth-child(even){margin-left:54px}
body[data-page="kanjia"] .method-list article:nth-child(odd){margin-right:54px}
body[data-page="jiazhuan"] .topic-list{grid-template-columns:1fr 1fr}
body[data-page="jiazhuan"] .topic-list article:first-child{grid-column:1 / -1}
body[data-page="anzhuang"] .method-list{grid-template-columns:1fr 1fr}
body[data-page="anzhuang"] .method-list article:nth-child(2),body[data-page="anzhuang"] .method-list article:nth-child(3){background:var(--soft)}
body[data-page="privacy"] .policy-grid section:first-child{grid-column:1 / -1}
body[data-page="privacy"] .policy-grid section:last-child{grid-column:1 / -1}
body[data-page="grade"] .policy-grid{grid-template-columns:1fr}
body[data-page="grade"] .policy-grid section{width:86%}
body[data-page="grade"] .policy-grid section:nth-child(even){margin-left:auto;background:var(--soft)}
body[data-page="help"] .method-list{grid-template-columns:1fr 1fr}
body[data-page="help"] .method-list article:first-child{grid-column:1 / -1}
body[data-page="contact"] .method-list{grid-template-columns:1fr 1fr}
body[data-page="about"] .method-list{grid-template-columns:.85fr 1.15fr}
body[data-page="about"] .method-list article:nth-child(3){grid-column:1 / -1}
@media(max-width:760px){
  body[data-page="jiabei"] .memo-list,body[data-page="jiazhuan"] .topic-list,body[data-page="anzhuang"] .method-list,body[data-page="help"] .method-list,body[data-page="contact"] .method-list,body[data-page="about"] .method-list{grid-template-columns:1fr}
  body[data-page="jiabei"] .memo-list article:first-child,body[data-page="jiazhuan"] .topic-list article:first-child,body[data-page="privacy"] .policy-grid section:first-child,body[data-page="privacy"] .policy-grid section:last-child,body[data-page="help"] .method-list article:first-child,body[data-page="about"] .method-list article:nth-child(3){grid-column:auto}
  body[data-page="kanjia"] .method-list article:nth-child(even),body[data-page="kanjia"] .method-list article:nth-child(odd){margin-left:0;margin-right:0}
  body[data-page="grade"] .policy-grid section{width:100%}
}