:root{
  --bean-light:#F3E6C8;--bean-deep:#5A3C16;--shell:#8A5A22;--sprout:#6A7A38;--warm:#FFF8E8;
  --deep-bg:#E4D2A8;--sub-bg:#F7EDD4;--title:#3A2A12;--text:#4A3418;--muted:#7A5A28;--soft:#A08048;
  --border:rgba(90,60,22,.16);--border-strong:rgba(90,60,22,.42);--shadow:0 12px 28px rgba(58,42,18,.08);
  --max:1080px;--top:116px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{margin:0;background:var(--bean-light);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.modal-open{overflow:hidden}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
img{display:block;max-width:100%;height:auto;object-fit:contain;object-position:center}
.site-width{width:min(calc(100% - 32px),var(--max));margin-inline:auto}
.skip-link{position:fixed;left:12px;top:-60px;z-index:2000;background:var(--warm);color:var(--title);padding:10px 14px;border-radius:8px;border:1px solid var(--border-strong)}
.skip-link:focus{top:10px}
.top-shell{position:fixed;inset:0 0 auto;z-index:900;box-shadow:0 1px 0 var(--border)}
.sprout-line{height:22px;background:var(--bean-deep);color:var(--warm);font-size:12px}
.sprout-inner{height:22px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.text-control{appearance:none;background:none;border:0;color:var(--warm);padding:0 8px;height:22px;cursor:pointer}
.pod-bar{height:56px;background:var(--bean-light);border-bottom:1px solid var(--border-strong)}
.pod-inner{height:56px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:12px}
.brand-link{justify-self:start;display:flex;min-width:44px;min-height:44px;align-items:center}
.brand-logo{height:26px;width:auto;max-width:170px;object-fit:contain}
.brand-fallback{font-size:16px;font-weight:800;color:var(--title)}
.app-quick{justify-self:center;display:inline-flex;align-items:center;min-height:44px;padding:0 16px;font-weight:700;color:var(--bean-deep);border-radius:9px}
.pod-button{justify-self:end;min-width:64px;min-height:44px;border:1px solid var(--border-strong);background:var(--warm);color:var(--bean-deep);border-radius:9px;cursor:pointer}
.furrow-tabs{height:38px;background:var(--warm);border-bottom:1px solid var(--border)}
.furrow-inner{height:38px;display:flex;justify-content:space-between;align-items:center}
.furrow-left,.furrow-right{display:flex;gap:8px;align-items:center}
.furrow-tabs a{height:30px;min-width:58px;padding:0 12px;border-radius:7px;display:inline-flex;align-items:center;justify-content:center;font-size:13px;color:var(--muted)}
.furrow-tabs a.is-current{background:var(--bean-deep);color:var(--warm)}
.site-main{padding-top:calc(var(--top) + 34px);padding-bottom:48px;min-height:65vh}
h1,h2,h3,p{margin-top:0}
h1{font-size:24px;line-height:1.3;color:var(--title);margin-bottom:16px}
h2{font-size:20px;line-height:1.35;color:var(--title);margin-bottom:12px}
h3{font-size:16px;line-height:1.4;color:var(--title);margin-bottom:8px}
p{margin-bottom:14px}
.eyebrow,.section-heading>span,.kicker{display:inline-block;font-size:12px;font-weight:800;letter-spacing:.08em;color:var(--shell);margin-bottom:8px;text-transform:uppercase}
.section-heading{margin-bottom:20px}
.section-heading h2{margin-bottom:0}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:42px;height:42px;padding:0 18px;border-radius:9px;font-size:14px;font-weight:800;white-space:nowrap;transition:transform .18s ease,box-shadow .18s ease,background .18s ease}
.btn:hover{transform:translateY(-1px);box-shadow:var(--shadow)}
.btn:focus-visible,a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid rgba(106,122,56,.35);outline-offset:3px}
.btn-primary{background:linear-gradient(135deg,#8A5A22 0%,#5A3C16 100%);color:var(--warm)}
.btn-secondary{background:var(--warm);color:var(--bean-deep);border:1px solid var(--shell)}
.text-link{font-weight:800;color:var(--bean-deep);text-decoration:underline;text-underline-offset:4px}
.home-intro{padding:34px 0 28px;max-width:760px;margin-left:max(16px,calc((100vw - var(--max))/2));margin-right:auto}
.home-intro p{font-size:16px;max-width:720px}
.image-trough{height:200px;background:var(--deep-bg);border:1px solid var(--border);border-radius:12px;display:flex;align-items:center;justify-content:center;overflow:hidden;margin-bottom:46px}
.image-trough img{width:100%;height:100%;padding:10px;object-fit:contain}
.home-quads,.long-column,.timeline-section,.split-notes,.theme-strip-section,.app-feature,.read-notes,.home-faq,.brand-story{margin-bottom:54px}
.quad-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.quad-card{background:var(--warm);border:1px solid var(--border);border-radius:10px;padding:14px;box-shadow:var(--shadow)}
.quad-card>a{font-weight:800;color:var(--bean-deep)}
.media-slot{background:var(--sub-bg);border:1px solid var(--border);border-radius:10px;display:flex;align-items:center;justify-content:center;overflow:hidden}
.media-slot img{width:100%;height:100%;padding:8px;object-fit:contain}
.media-slot.small{height:140px;margin-bottom:14px}.media-slot.medium{height:180px;margin-bottom:18px}
.long-column{max-width:820px}.long-column p{font-size:15.5px}
.timeline-section .media-slot{max-width:420px}
.timeline-list{list-style:none;margin:0;padding:0 0 0 24px;border-left:2px solid var(--border-strong)}
.timeline-list li{position:relative;background:var(--warm);border:1px solid var(--border);border-radius:10px;padding:14px 16px;margin:0 0 14px 14px;display:grid;grid-template-columns:72px 1fr;gap:10px}
.timeline-list li:before{content:"";position:absolute;left:-23px;top:20px;width:10px;height:10px;border-radius:50%;background:var(--sprout);box-shadow:0 0 0 4px var(--bean-light)}
.timeline-list strong{color:var(--bean-deep)}
.split-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.split-grid article{background:var(--sub-bg);border:1px solid var(--border);border-radius:10px;padding:20px}
.theme-strips{display:grid;gap:10px}.theme-strips a{display:grid;grid-template-columns:1fr auto;gap:4px 18px;background:var(--warm);border:1px solid var(--border);border-left:5px solid var(--shell);border-radius:10px;padding:16px 18px}.theme-strips strong{color:var(--title)}.theme-strips span{color:var(--sprout);font-weight:800}.theme-strips em{grid-column:1/-1;font-style:normal;color:var(--muted)}
.app-feature{display:grid;grid-template-columns:minmax(260px,360px) 1fr;gap:30px;align-items:center;background:var(--warm);border:1px solid var(--border);border-radius:12px;padding:24px}
.app-visual{position:relative}.app-slot{height:340px}.app-icon{position:absolute;right:12px;bottom:12px;width:48px;height:48px;border-radius:11px;background:var(--warm);border:1px solid var(--border);padding:3px}
.app-copy p{max-width:590px}
.read-points{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-bottom:18px}.read-points article{background:var(--sub-bg);border-top:3px solid var(--sprout);padding:16px;border-radius:8px}
.home-faq details{background:var(--warm);border:1px solid var(--border);border-radius:9px;margin-bottom:10px;padding:0 16px}.home-faq summary{cursor:pointer;min-height:48px;display:flex;align-items:center;font-weight:800;color:var(--title)}.home-faq details p{padding-bottom:14px}
.brand-story{display:grid;grid-template-columns:300px 1fr;gap:24px;align-items:center}.brand-art{height:220px;margin:0}

/* 内页通用标题区 */
.page-hero{margin-bottom:30px}.page-hero .hero-box{background:var(--warm);border:1px solid var(--border);border-radius:12px;padding:28px;box-shadow:var(--shadow)}.page-hero p{max-width:780px;margin-bottom:0}.crumbs{font-size:12px;color:var(--muted);margin-bottom:10px}.crumbs a{text-decoration:underline;text-underline-offset:3px}
.content-figure{height:220px;background:var(--sub-bg);border:1px solid var(--border);border-radius:11px;margin:22px 0;display:flex;align-items:center;justify-content:center}.content-figure img{width:100%;height:100%;padding:10px;object-fit:contain}
.prose-column{max-width:820px}.prose-column section{margin-bottom:30px}.prose-column section+section{border-top:1px solid var(--border);padding-top:24px}.prose-column ul{padding-left:20px}.prose-column li{margin-bottom:9px}
.section-gap{margin-top:28px}
.callout{background:var(--sub-bg);border-left:5px solid var(--sprout);padding:16px 18px;border-radius:8px;margin:20px 0}

/* 豆望观察目录 */
.observation-layout{display:grid;grid-template-columns:260px 1fr;gap:24px;align-items:start}.observation-menu{position:sticky;top:140px;background:var(--warm);border:1px solid var(--border);border-radius:10px;padding:14px}.observation-menu a{display:block;padding:10px 8px;border-bottom:1px solid var(--border);font-weight:700;color:var(--muted)}.observation-menu a:last-child{border-bottom:0}.observation-body article{background:var(--warm);border:1px solid var(--border);border-radius:10px;padding:20px;margin-bottom:16px}.observation-body .mini-note{color:var(--muted);font-size:13px}

/* 四宫格内页 */
.inner-quad-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.inner-quad-grid article{background:var(--warm);border:1px solid var(--border);border-radius:10px;padding:20px;min-height:220px}.inner-quad-grid .wide{grid-column:1/-1;min-height:auto;background:var(--sub-bg)}

/* 左右分栏札记 */
.notes-layout{display:grid;grid-template-columns:1fr 1fr;gap:22px}.note-column{display:grid;gap:16px}.note-card{background:var(--warm);border:1px solid var(--border);border-radius:10px;padding:20px}.note-card.accent{background:var(--sub-bg);border-color:var(--border-strong)}

/* 竖轴页 */
.vertical-axis{max-width:820px;margin:auto}.axis-item{position:relative;margin-left:26px;padding:0 0 28px 28px;border-left:2px solid var(--border-strong)}.axis-item:before{content:"";position:absolute;left:-7px;top:5px;width:12px;height:12px;border-radius:50%;background:var(--shell)}.axis-item article{background:var(--warm);border:1px solid var(--border);border-radius:10px;padding:18px}.axis-item:last-child{border-left-color:transparent}

/* 主题条 */
.topic-bars{display:grid;gap:12px}.topic-bar{display:grid;grid-template-columns:180px 1fr auto;gap:16px;align-items:start;background:var(--warm);border:1px solid var(--border);border-left:6px solid var(--shell);border-radius:9px;padding:18px}.topic-bar .status{font-size:13px;font-weight:800;color:var(--sprout);white-space:nowrap}.topic-bar p{margin:0;color:var(--muted)}

/* 清单 */
.memo-board{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.memo-list{background:var(--warm);border:1px solid var(--border);border-radius:10px;padding:20px}.memo-list ul{list-style:none;padding:0;margin:0}.memo-list li{padding:10px 0 10px 28px;border-bottom:1px solid var(--border);position:relative}.memo-list li:last-child{border-bottom:0}.memo-list li:before{content:"✓";position:absolute;left:0;top:9px;color:var(--sprout);font-weight:900}

/* 方法说明 */
.method-flow{display:grid;gap:18px}.method-step{display:grid;grid-template-columns:120px 1fr;gap:20px;background:var(--warm);border:1px solid var(--border);border-radius:10px;padding:20px}.method-step strong{font-size:18px;color:var(--bean-deep)}

/* 主题列表 */
.collection-list{display:grid;gap:14px}.collection-item{background:var(--warm);border:1px solid var(--border);border-radius:10px;padding:20px}.collection-item header{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:8px}.collection-item header span{font-size:12px;color:var(--sprout);font-weight:800}

/* 产品页 */
.product-layout{display:grid;grid-template-columns:340px 1fr;gap:30px;align-items:start}.product-art{height:340px;background:var(--sub-bg);border:1px solid var(--border);border-radius:12px;display:flex;align-items:center;justify-content:center;position:sticky;top:140px}.product-art img{width:100%;height:100%;padding:12px;object-fit:contain}.product-copy section{background:var(--warm);border:1px solid var(--border);border-radius:10px;padding:20px;margin-bottom:14px}

/* 条款 */
.policy-layout{display:grid;grid-template-columns:220px 1fr;gap:24px}.policy-index{position:sticky;top:140px;align-self:start;background:var(--sub-bg);border:1px solid var(--border);border-radius:10px;padding:14px}.policy-index a{display:block;padding:8px 6px;color:var(--muted);font-weight:700}.policy-sections section{background:var(--warm);border:1px solid var(--border);border-radius:10px;padding:22px;margin-bottom:14px}

/* FAQ */
.faq-list{display:grid;gap:12px}.faq-list details{background:var(--warm);border:1px solid var(--border);border-radius:10px;padding:0 18px}.faq-list summary{min-height:54px;display:flex;align-items:center;cursor:pointer;font-weight:800;color:var(--title)}.faq-list p{padding-bottom:18px;margin:0}

/* 联系和关于 */
.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.contact-card{background:var(--warm);border:1px solid var(--border);border-radius:10px;padding:20px}.about-band{display:grid;grid-template-columns:1fr 320px;gap:24px;align-items:center;background:var(--warm);border:1px solid var(--border);border-radius:12px;padding:24px;margin-bottom:24px}.about-principles{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.about-principles article{background:var(--sub-bg);border:1px solid var(--border);border-radius:10px;padding:20px}

.site-footer{background:#2E220E;color:var(--bean-light);border-top:1px solid rgba(243,230,200,.25);padding:34px 0 72px;font-size:13px}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(4,1fr);gap:22px}.footer-grid h2{font-size:13px;color:var(--warm);margin:0 0 8px}.footer-grid a{display:block;color:var(--bean-light);padding:3px 0}.footer-brand{display:flex;flex-direction:column;align-items:flex-start;gap:4px}.footer-logo{height:26px;width:auto;max-width:170px;filter:none;margin-bottom:4px}.footer-brand strong{color:var(--warm);font-size:16px}.footer-brand span{color:#d7c49b;letter-spacing:.08em}.footer-note{border-top:1px solid rgba(243,230,200,.18);margin-top:24px;padding-top:18px;color:#d7c49b}.footer-note p{margin:0 0 6px}

.page-mask{position:fixed;inset:0;background:rgba(46,34,14,.45);z-index:1100;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.page-mask.is-visible{opacity:1;visibility:visible;pointer-events:auto}
.pod-drawer{position:fixed;top:0;right:0;bottom:0;width:380px;max-width:88vw;background:var(--warm);z-index:1200;transform:translateX(102%);visibility:hidden;pointer-events:none;transition:transform .24s ease,visibility .24s;overflow-y:auto;box-shadow:-12px 0 28px rgba(58,42,18,.15)}.pod-drawer.is-open{transform:none;visibility:visible;pointer-events:auto}.drawer-head{position:sticky;top:0;background:var(--bean-light);border-bottom:1px solid var(--border);padding:12px 14px;display:flex;align-items:center;justify-content:space-between;z-index:2}.drawer-brand{display:flex;align-items:center;gap:10px}.drawer-brand>div{display:flex;flex-direction:column;line-height:1.25}.drawer-brand span{font-size:10px;color:var(--muted);letter-spacing:.06em}.drawer-close,.search-close{min-width:54px;min-height:44px;background:var(--warm);border:1px solid var(--border-strong);border-radius:8px;cursor:pointer}.drawer-groups{padding:14px}.drawer-groups section{margin-bottom:20px}.drawer-groups h2{font-size:13px;color:var(--shell);margin:0 0 8px}.drawer-groups a{display:block;border-top:1px solid var(--border);padding:10px 4px}.drawer-groups a strong{display:block;color:var(--title)}.drawer-groups a span{display:block;color:var(--muted);font-size:12px;line-height:1.55;margin-top:3px}
.search-panel{position:fixed;left:0;right:0;top:78px;z-index:1150;visibility:hidden;opacity:0;pointer-events:none;transition:.2s}.search-panel.is-open{visibility:visible;opacity:1;pointer-events:auto}.search-card{width:min(calc(100% - 32px),760px);margin:10px auto;background:var(--warm);border:1px solid var(--border-strong);box-shadow:var(--shadow);border-radius:12px;padding:18px}.search-head{display:flex;justify-content:space-between;gap:20px;align-items:flex-start}.search-head strong{font-size:18px;color:var(--title)}.search-head p{font-size:13px;color:var(--muted);margin:3px 0 0}.search-presets{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.search-presets a{min-height:42px;display:inline-flex;align-items:center;padding:0 16px;border-radius:9px;background:var(--sub-bg);border:1px solid var(--border);font-weight:800;color:var(--bean-deep)}
.mobile-bottom{display:none}

@media (max-width:820px){
  :root{--top:78px}
  .furrow-tabs{display:none}.site-main{padding-top:calc(var(--top) + 28px);padding-bottom:78px}.home-intro{margin-inline:16px;padding-top:28px}.quad-grid,.split-grid,.read-points,.inner-quad-grid,.notes-layout,.memo-board,.contact-grid,.about-principles{grid-template-columns:1fr}.app-feature,.brand-story,.product-layout,.policy-layout,.about-band,.observation-layout{grid-template-columns:1fr}.app-feature{padding:18px}.app-visual{max-width:420px;width:100%;margin:auto}.brand-art{width:100%;height:200px}.observation-menu,.product-art,.policy-index{position:static}.topic-bar{grid-template-columns:1fr auto}.topic-bar p{grid-column:1/-1}.method-step{grid-template-columns:1fr;gap:8px}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.site-footer{padding-bottom:86px}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:1000;display:grid;grid-template-columns:repeat(5,1fr);height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:var(--warm);border-top:1px solid var(--border-strong)}.mobile-bottom a{min-height:48px;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:800;color:var(--muted)}.mobile-bottom a.is-current{background:var(--bean-deep);color:var(--warm)}.page-mask{z-index:1100}.pod-drawer{z-index:1200}.search-panel{top:0;bottom:0;background:var(--bean-deep);color:var(--warm);display:flex;align-items:flex-start;padding-top:86px}.search-card{background:var(--bean-deep);border-color:rgba(255,248,232,.26);box-shadow:none}.search-head strong{color:var(--warm)}.search-head p{color:#eadbb9}.search-close{background:var(--warm);color:var(--bean-deep)}.search-presets a{background:var(--warm);color:var(--bean-deep);border-color:rgba(255,248,232,.38)}
}
@media (max-width:560px){
  .site-width{width:min(calc(100% - 32px),var(--max))}.pod-inner{grid-template-columns:minmax(0,1fr) auto auto;gap:6px}.brand-logo{max-width:120px}.brand-fallback{font-size:15px}.app-quick{padding:0 8px;font-size:13px}.pod-button{min-width:56px}.quad-grid{grid-template-columns:1fr}.image-trough{height:200px}.timeline-list li{grid-template-columns:1fr}.topic-bar{grid-template-columns:1fr}.topic-bar .status{justify-self:start}.home-intro p{font-size:15px}.footer-grid{grid-template-columns:1fr 1fr}.about-band{padding:18px}.page-hero .hero-box{padding:20px}.content-figure{height:190px}.app-slot,.product-art{height:300px}.drawer-head{padding-right:10px}.drawer-brand .brand-logo{max-width:100px}.drawer-brand span{display:none}
}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}