:root{
  --paper:#F2E6C8;
  --deep:#E0D2AE;
  --content:#FBF4E2;
  --secondary:#EBE0C4;
  --ink:#161208;
  --body:#2A2210;
  --muted:#5A4A28;
  --soft:#7A6840;
  --gold-dark:#5C4814;
  --gold:#B8943A;
  --line:rgba(22,18,8,.12);
  --line-strong:rgba(92,72,20,.50);
  --shadow:0 12px 28px rgba(22,18,8,.10);
  --max:960px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--paper)}
body{margin:0;background:var(--paper);color:var(--body);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}
body.ui-locked{overflow:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input{font:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--gold-dark);outline-offset:3px}
.skip-link{position:fixed;left:16px;top:-60px;z-index:1200;background:var(--ink);color:var(--content);padding:8px 12px;border-radius:3px}
.skip-link:focus{top:8px}
.site-top{position:fixed;inset:0 0 auto 0;z-index:900;box-shadow:0 3px 12px rgba(22,18,8,.04)}
.top-strip{height:20px;background:var(--ink);color:var(--gold);font-size:12px;line-height:20px}
.top-strip-inner,.brand-row-inner,.wave-nav-inner,.footer-inner,.page-shell{width:min(var(--max),calc(100% - 32px));margin:0 auto}
.top-strip-inner{height:20px;display:flex;align-items:center;justify-content:space-between}
.brand-mini{font-weight:700;letter-spacing:.06em}
.top-search-btn{height:20px;min-width:52px;border:0;background:transparent;color:var(--gold);padding:0 4px;font-size:12px}
.brand-row{height:54px;background:var(--content);border-bottom:1px solid var(--line-strong)}
.brand-row-inner{height:54px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand-logo{min-width:92px;height:44px;display:flex;align-items:center;font-size:16px;font-weight:800;color:var(--ink)}
.brand-logo img,.footer-brand img,.drawer-brand img{height:24px;width:auto;object-fit:contain;object-position:center}
.brand-actions{display:flex;align-items:center;gap:8px}
.app-link,.drawer-open,.drawer-close,.search-panel button{min-height:44px;display:inline-flex;align-items:center;justify-content:center;padding:0 14px;border-radius:4px;border:1px solid var(--line-strong);background:var(--content);color:var(--ink);font-size:14px;white-space:nowrap}
.app-link:hover,.drawer-open:hover,.drawer-close:hover,.search-panel button:hover{background:var(--secondary)}
.app-link{background:linear-gradient(135deg,#161208 0%,#B8943A 100%);color:var(--content);border-color:transparent}
.wave-nav{height:40px;background:var(--content);border-bottom:1px solid var(--line)}
.wave-nav-inner{height:40px;display:flex;align-items:center;justify-content:center;gap:42px}
.wave-item{width:220px;max-width:27%;height:40px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:13px;color:var(--muted)}
.wave-item span{line-height:18px}
.wave-item i{display:block;width:100%;height:6px;border:1px solid var(--gold-dark);border-radius:999px;position:relative;overflow:hidden}
.wave-item i:before{content:"";position:absolute;inset:1px;border-radius:999px;background:transparent}
.wave-item.is-current{color:var(--ink);font-weight:700}
.wave-item.is-current i:before{background:var(--gold)}
.site-main{padding-top:114px;min-height:60vh}
.page-shell{padding:38px 0 64px}
h1,h2,h3,p{margin-top:0}
h1{font-size:24px;line-height:1.3;color:var(--ink);margin-bottom:16px;letter-spacing:.01em}
h2{font-size:20px;line-height:1.4;color:var(--ink);margin-bottom:12px}
h3{font-size:16px;line-height:1.45;color:var(--ink);margin-bottom:8px}
p{margin-bottom:14px}
.eyebrow{font-size:12px;color:var(--gold-dark);font-weight:800;letter-spacing:.14em;text-transform:uppercase;margin-bottom:8px}
.lead{font-size:16px;color:var(--muted);max-width:760px}
.muted{color:var(--muted)}
.soft{color:var(--soft)}
.button-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}
.btn-primary,.btn-secondary{min-height:42px;padding:0 18px;border-radius:4px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,#161208 0%,#B8943A 100%);color:var(--content);border:1px solid transparent}
.btn-secondary{background:var(--content);color:var(--ink);border:1px solid var(--gold-dark)}
.btn-primary:hover{filter:brightness(1.08)}
.btn-secondary:hover{background:var(--secondary)}
.image-slot{background:var(--content);border:1px solid var(--line);min-height:110px;display:flex;align-items:center;justify-content:center;overflow:hidden}
.image-slot img{width:100%;height:100%;object-fit:contain;object-position:center}
.section-block{margin-top:34px}
.rich-card{background:var(--content);border:1px solid var(--line);border-radius:4px;box-shadow:var(--shadow)}
.note-box{background:var(--secondary);border-left:3px solid var(--gold-dark);padding:18px 20px;border-radius:2px}
.padded-card{padding:24px}
.dark-box{background:var(--ink);color:var(--content);padding:22px;border-radius:4px}
.dark-box h2,.dark-box h3{color:var(--gold)}
.dark-box p{color:var(--paper)}
.divider{height:1px;background:var(--line);margin:28px 0}

/* 首页 */
.home-intro{padding:12px 0 30px;border-bottom:1px solid var(--line)}
.home-indexline{display:flex;align-items:center;gap:10px;margin-bottom:22px;color:var(--gold-dark);font-size:13px}
.home-indexline:before{content:"";width:96px;height:6px;border:1px solid var(--gold-dark);border-radius:999px;background:linear-gradient(90deg,var(--gold) 0 52%,transparent 52%)}
.home-intro .slogan{font-size:20px;color:var(--gold-dark);font-weight:800;margin-bottom:10px}
.home-intro p{max-width:760px}
.home-diagonal{margin-top:32px;position:relative;min-height:220px;background:var(--secondary);border:1px solid var(--line);overflow:hidden;border-radius:4px}
.home-diagonal-copy{padding:28px 46% 28px 28px;position:relative;z-index:2}
.home-diagonal .image-slot{position:absolute;right:0;top:0;width:46%;height:180px;min-height:180px;border:0;border-left:1px solid var(--line);clip-path:polygon(18% 0,100% 0,100% 100%,0 100%)}
.home-single{margin-top:34px;padding:0;overflow:hidden}
.home-single .image-slot{height:220px;border:0;border-bottom:1px solid var(--line)}
.home-single-copy{padding:24px 26px}
.home-spines{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:34px}
.home-spine{position:relative;padding:24px 22px 24px 34px;background:var(--content);border:1px solid var(--line);border-radius:3px;min-height:280px}
.home-spine:before{content:"";position:absolute;left:10px;top:14px;bottom:14px;width:4px;background:var(--gold-dark);opacity:.76}
.home-spine .image-slot{height:146px;margin:0 0 16px 0}
.home-rack-head{margin-top:36px;padding:22px;background:var(--ink);color:var(--paper);display:grid;grid-template-columns:1fr 260px;gap:24px;align-items:center;border-radius:4px}
.home-rack-head h2{color:var(--gold)}
.home-rack-head .image-slot{height:130px;min-height:130px;background:var(--content);border:0}
.home-rack-cards{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:14px}
.home-rack-cards article{padding:20px;border:1px solid var(--line);background:var(--content);border-radius:3px}
.home-period{margin-top:36px;background:var(--deep);padding:22px;border-radius:4px}
.home-period .image-slot{height:170px;margin-bottom:16px}
.period-rows{display:grid;grid-template-columns:1fr;gap:9px}
.period-row{display:grid;grid-template-columns:82px 1fr;gap:16px;padding:12px 14px;background:var(--content);border-left:3px solid var(--gold-dark)}
.home-status{margin-top:36px}
.home-status .image-slot{height:170px;margin-bottom:14px}
.status-row{display:grid;grid-template-columns:minmax(0,1fr) 110px;align-items:center;gap:16px;padding:13px 0;border-bottom:1px solid var(--line)}
.status-badge{justify-self:end;border:1px solid var(--gold-dark);padding:4px 10px;border-radius:999px;color:var(--gold-dark);font-size:13px}
.home-app{margin-top:36px;padding:24px;background:var(--content);border:1px solid var(--line);border-radius:4px}
.home-app-copy{max-width:780px}
.home-app-media{margin-top:18px;display:grid;grid-template-columns:84px minmax(0,1fr);gap:16px;align-items:end}
.home-app-media .image-slot:first-child{height:84px;min-height:84px}
.home-app-media .image-slot:last-child{height:300px;min-height:300px}
.home-late{margin-top:38px;border-top:1px solid var(--line);padding-top:30px}
.home-faq{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:16px}
.home-faq article{padding:16px 18px;background:var(--content);border:1px solid var(--line);border-radius:3px}
.brand-story{margin-top:34px;padding:24px;background:var(--secondary);border:1px solid var(--line)}

/* 页头通用变体 */
.page-heading{margin-bottom:30px}
.page-heading .lead{margin-bottom:0}
.page-heading.compact{max-width:760px}
.page-heading.dark{background:var(--ink);padding:24px;color:var(--paper);border-radius:4px}
.page-heading.dark h1{color:var(--gold)}
.page-heading.dark .lead{color:var(--paper)}

/* 角记：单卡宽 */
.jiaoji-feature{background:var(--content);border:1px solid var(--line-strong);border-radius:4px;overflow:hidden;box-shadow:var(--shadow)}
.jiaoji-feature .image-slot{height:250px;border:0;border-bottom:1px solid var(--line)}
.jiaoji-feature-copy{padding:26px 28px}
.jiaoji-sections{display:grid;grid-template-columns:220px 1fr;gap:30px;margin-top:34px}
.jiaoji-sections nav{align-self:start;position:sticky;top:132px;background:var(--secondary);padding:14px;border-radius:3px}
.jiaoji-sections nav a{display:block;padding:10px 8px;border-bottom:1px solid var(--line);color:var(--gold-dark);font-weight:700}
.jiaoji-sections article{padding-bottom:22px;margin-bottom:24px;border-bottom:1px solid var(--line)}

/* 角面：斜切 */
.jiaomian-hero{position:relative;min-height:300px;background:var(--ink);overflow:hidden;border-radius:4px}
.jiaomian-hero-copy{position:relative;z-index:2;width:58%;padding:34px 30px;color:var(--paper)}
.jiaomian-hero-copy h1{color:var(--gold)}
.jiaomian-hero-copy .lead{color:var(--paper)}
.jiaomian-hero .image-slot{position:absolute;right:0;top:0;width:48%;height:100%;border:0;background:var(--content);clip-path:polygon(24% 0,100% 0,100% 100%,0 100%)}
.scene-flow{margin-top:34px;display:grid;grid-template-columns:repeat(5,1fr);gap:8px}
.scene-flow article{min-height:172px;padding:16px 14px;background:var(--content);border:1px solid var(--line);position:relative}
.scene-flow article:after{content:"";position:absolute;right:-7px;top:50%;width:14px;height:1px;background:var(--gold-dark)}
.scene-flow article:last-child:after{display:none}
.jiaomian-notes{margin-top:34px;columns:2;column-gap:30px}
.jiaomian-notes section{break-inside:avoid;margin:0 0 18px;padding:18px;background:var(--secondary);border-radius:3px}

/* 角簿：书脊 */
.jiaobu-shelf{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;align-items:stretch}
.jiaobu-volume{min-height:430px;background:var(--content);border:1px solid var(--line);border-left:7px solid var(--gold-dark);padding:18px 14px;border-radius:2px;display:flex;flex-direction:column}
.jiaobu-volume h2{font-size:17px;writing-mode:vertical-rl;letter-spacing:.12em;margin:0 auto 16px;min-height:96px}
.jiaobu-volume p{font-size:14px;margin-top:auto}
.jiaobu-volume .image-slot{height:120px;margin-bottom:14px}
.jiaobu-method{margin-top:32px;padding:24px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* 角次：单列说明 */
.jiaoci-track{max-width:760px;margin:0 auto;position:relative;padding-left:38px}
.jiaoci-track:before{content:"";position:absolute;left:13px;top:6px;bottom:6px;width:2px;background:var(--gold-dark)}
.jiaoci-step{position:relative;padding:0 0 26px 16px;margin-bottom:18px;border-bottom:1px solid var(--line)}
.jiaoci-step:before{content:"";position:absolute;left:-31px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--gold);border:3px solid var(--paper)}
.jiaoci-step .image-slot{height:210px;margin:16px 0}

/* 旬角 */
.xunjiao-band{display:grid;grid-template-columns:150px 1fr;gap:22px;padding:22px 0;border-top:1px solid var(--line)}
.xunjiao-band:first-of-type{border-top:2px solid var(--gold-dark)}
.xunjiao-label{font-size:22px;color:var(--gold-dark);font-weight:800;letter-spacing:.08em}
.xunjiao-band .image-slot{height:190px;margin-top:12px}

/* 角历 */
.jiaoli-board{background:var(--content);border:1px solid var(--line);padding:24px;border-radius:4px}
.jiaoli-board .image-slot{height:180px;margin-bottom:18px}
.timeline-status{display:grid;gap:10px}
.timeline-item{display:grid;grid-template-columns:120px minmax(0,1fr) 110px;gap:18px;align-items:center;padding:14px 0;border-bottom:1px solid var(--line)}
.timeline-item strong{color:var(--ink)}
.timeline-item span:last-child{justify-self:end;color:var(--gold-dark);font-weight:800}
.jiaoli-explain{margin-top:30px;display:grid;grid-template-columns:1fr 1fr;gap:16px}
.jiaoli-explain section{padding:18px;background:var(--secondary);border-radius:3px}

/* 角备 */
.jiaobei-header{display:grid;grid-template-columns:1fr 300px;gap:24px;align-items:center;background:var(--secondary);padding:24px;border-radius:4px}
.jiaobei-header .image-slot{height:210px}
.checklist{margin-top:30px;display:grid;gap:12px}
.checklist section{padding:20px;background:var(--content);border:1px solid var(--line);border-radius:3px}
.checklist h2{display:flex;align-items:center;gap:10px}
.checklist h2:before{content:"";width:14px;height:14px;border:2px solid var(--gold-dark);flex:0 0 auto}

/* 看角 */
.kanjiao-path{display:grid;grid-template-columns:1fr 70px 1fr;gap:0;align-items:stretch}
.kanjiao-path section{padding:24px;background:var(--content);border:1px solid var(--line)}
.kanjiao-path .path-mid{display:flex;align-items:center;justify-content:center;background:var(--ink);color:var(--gold);font-weight:800;writing-mode:vertical-rl;letter-spacing:.2em}
.kanjiao-guide{margin-top:30px;display:grid;grid-template-columns:2fr 1fr;gap:18px}
.kanjiao-guide article{padding:20px;background:var(--secondary)}

/* 角专 */
.topic-list{display:grid;gap:12px}
.topic-item{display:grid;grid-template-columns:180px 1fr;gap:22px;padding:22px;border-bottom:1px solid var(--line);background:linear-gradient(90deg,var(--content),transparent)}
.topic-item strong{font-size:18px;color:var(--gold-dark)}

/* 角架 */
.jiaojia-intro{text-align:center;max-width:700px;margin:0 auto 30px}
.jiaojia-intro .image-slot{height:190px;margin:18px auto 0;max-width:620px}
.jiaojia-stack{max-width:760px;margin:0 auto;display:grid;gap:14px}
.jiaojia-stack article{padding:22px 24px;background:var(--content);border:1px solid var(--line);border-radius:4px;text-align:center}
.jiaojia-stack article:nth-child(even){background:var(--secondary)}

/* APP */
.app-copy{max-width:760px;margin:0 auto}
.app-copy .app-points{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:26px}
.app-copy .app-points section{padding:18px;background:var(--content);border:1px solid var(--line)}
.app-visual{max-width:760px;margin:24px auto 0;display:grid;grid-template-columns:80px 1fr;gap:18px;align-items:end}
.app-visual .image-slot:first-child{height:80px;min-height:80px}
.app-visual .image-slot:last-child{height:320px}

/* 条款/说明 */
.policy-doc{max-width:790px;margin:0 auto}
.policy-doc section{padding:22px 0;border-top:1px solid var(--line)}
.policy-doc section:first-of-type{border-top:2px solid var(--gold-dark)}
.policy-doc h2{display:flex;gap:12px;align-items:center}
.policy-doc h2:before{content:"";width:24px;height:4px;background:var(--gold);display:inline-block}

/* 帮助 */
.help-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.help-grid section{padding:20px;background:var(--content);border:1px solid var(--line);min-height:220px}
.help-grid section:nth-child(3n){background:var(--secondary)}

/* FAQ */
.faq-list{display:grid;gap:10px}
.faq-item{background:var(--content);border:1px solid var(--line);padding:18px 20px;border-radius:3px}
.faq-item h2{font-size:16px;margin-bottom:8px}
.faq-item p{margin-bottom:0;color:var(--muted)}

/* 联系 */
.contact-wrap{display:grid;grid-template-columns:1.2fr .8fr;gap:24px}
.contact-methods{display:grid;gap:12px}
.contact-methods section{padding:20px;background:var(--content);border-left:4px solid var(--gold-dark)}
.contact-side{padding:22px;background:var(--ink);color:var(--paper);border-radius:4px;align-self:start}
.contact-side h2{color:var(--gold)}

/* 关于 */
.about-banner{height:200px;margin-bottom:26px}
.about-banner.image-slot{min-height:200px}
.about-manifesto{display:grid;grid-template-columns:1fr 280px;gap:24px;align-items:start}
.about-cover{height:260px}
.about-principles{margin-top:30px;border-top:1px solid var(--line)}
.about-principles section{display:grid;grid-template-columns:160px 1fr;gap:22px;padding:20px 0;border-bottom:1px solid var(--line)}
.about-principles h2{font-size:17px;color:var(--gold-dark)}

/* 页脚 */
.site-footer{background:var(--ink);color:var(--paper);border-top:1px solid var(--gold);font-size:13px;padding:34px 0 calc(24px + env(safe-area-inset-bottom))}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:24px}
.footer-brand-link{height:32px;display:flex;align-items:center}
.footer-brand span{font-weight:800}
.footer-brand em{font-style:normal;color:var(--gold);letter-spacing:.08em}
.footer-groups{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.footer-groups section{min-width:0}
.footer-groups h2{font-size:14px;color:var(--gold);margin:0 0 9px}
.footer-groups a{display:block;color:var(--paper);padding:3px 0}
.footer-groups a:hover{color:var(--gold)}
.footer-note{margin:26px 0 0;padding-top:18px;border-top:1px solid rgba(184,148,58,.35);color:var(--paper)}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:16px;color:#d8caa7}
.footer-bottom a{margin-left:12px;color:var(--gold)}

/* 右侧菜单与搜索 */
.ui-overlay{position:fixed;inset:0;background:rgba(22,18,8,.48);z-index:980;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .2s ease,visibility .2s ease}
.ui-overlay.is-active{opacity:1;visibility:visible;pointer-events:auto}
.site-drawer{position:fixed;right:16px;top:10vh;width:min(32vw,460px);height:auto;max-height:80vh;z-index:1000;background:var(--content);border:1px solid var(--line-strong);box-shadow:var(--shadow);border-radius:5px;transform:translateX(calc(100% + 34px));opacity:0;visibility:hidden;pointer-events:none;transition:transform .22s ease,opacity .22s ease,visibility .22s ease;overflow:auto}
.site-drawer.is-open{transform:translateX(0);opacity:1;visibility:visible;pointer-events:auto}
.drawer-head{position:sticky;top:0;z-index:2;background:var(--content);display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 14px;border-bottom:1px solid var(--line)}
.drawer-brand{display:flex;align-items:center;gap:8px}
.drawer-brand span{font-weight:800}
.drawer-content{padding:10px 14px 18px}
.drawer-content section+section{margin-top:14px;padding-top:12px;border-top:1px solid var(--line)}
.drawer-content h2{font-size:14px;color:var(--gold-dark);margin:0 0 5px}
.drawer-content a{display:grid;grid-template-columns:68px 1fr;gap:10px;padding:9px 4px;border-bottom:1px solid var(--line)}
.drawer-content a:hover{background:var(--secondary)}
.drawer-content b{color:var(--ink)}
.drawer-content span{color:var(--muted);font-size:13px}
.search-panel{position:fixed;left:50%;top:74px;z-index:1010;width:min(var(--max),calc(100% - 32px));transform:translate(-50%,-14px);background:var(--content);border:1px solid var(--line-strong);box-shadow:var(--shadow);border-radius:0 0 5px 5px;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .2s ease,transform .2s ease,visibility .2s ease}
.search-panel.is-open{opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0)}
.search-panel-inner{padding:18px}
.search-panel-head{display:flex;align-items:center;justify-content:space-between;gap:16px}
.search-panel-head>div{display:flex;flex-direction:column}
.search-panel-head span{color:var(--muted);font-size:13px}
.search-field{display:block;margin-top:14px}
.search-field span{display:block;font-size:13px;color:var(--muted);margin-bottom:5px}
.search-field input{width:100%;height:44px;border:1px solid var(--line-strong);background:var(--paper);color:var(--ink);padding:0 12px;border-radius:3px}
.search-presets{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:12px}
.search-presets a{display:flex;flex-direction:column;padding:12px;background:var(--secondary);border:1px solid var(--line);border-radius:3px}
.search-presets a span{font-size:12px;color:var(--muted)}
.search-empty{margin:14px 0 0;color:var(--muted)}
.mobile-bottom{display:none}

@media (max-width:860px){
  .wave-nav-inner{gap:18px}
  .home-rack-head{grid-template-columns:1fr 220px}
  .jiaobu-shelf{grid-template-columns:repeat(3,1fr)}
  .jiaobu-volume:nth-child(4),.jiaobu-volume:nth-child(5){min-height:340px}
  .scene-flow{grid-template-columns:1fr 1fr}
  .scene-flow article:after{display:none}
  .footer-groups{grid-template-columns:1fr 1fr}
  .site-drawer{width:min(44vw,460px)}
}

@media (max-width:700px){
  body{padding-bottom:calc(48px + env(safe-area-inset-bottom))}
  .top-strip-inner,.brand-row-inner,.footer-inner,.page-shell{width:calc(100% - 32px)}
  .wave-nav{display:none}
  .site-main{padding-top:74px}
  .page-shell{padding-top:26px;padding-bottom:46px}
  h1{font-size:24px}
  h2{font-size:20px}
  .brand-row-inner{gap:8px}
  .brand-logo{min-width:70px;max-width:42%}
  .brand-logo img{max-width:100%}
  .brand-actions{gap:5px;min-width:0}
  .app-link,.drawer-open{padding:0 10px;min-height:44px}
  .home-intro{padding-top:4px}
  .home-diagonal{min-height:430px}
  .home-diagonal-copy{padding:22px 20px 202px}
  .home-diagonal .image-slot{top:auto;bottom:0;width:100%;height:180px;clip-path:polygon(0 18%,100% 0,100% 100%,0 100%);border-left:0;border-top:1px solid var(--line)}
  .home-spines,.home-rack-cards,.home-faq,.jiaoli-explain,.app-copy .app-points,.help-grid{grid-template-columns:1fr}
  .home-rack-head{grid-template-columns:1fr}
  .home-rack-head .image-slot{height:150px}
  .home-app-media,.app-visual{grid-template-columns:64px 1fr}
  .home-app-media .image-slot:first-child,.app-visual .image-slot:first-child{height:64px;min-height:64px}
  .home-app-media .image-slot:last-child{height:280px;min-height:280px}
  .status-row{grid-template-columns:1fr;gap:6px}
  .status-badge{justify-self:start}
  .jiaoji-sections{grid-template-columns:1fr}
  .jiaoji-sections nav{position:static;display:flex;overflow-x:auto;gap:4px;padding:8px}
  .jiaoji-sections nav a{white-space:nowrap;border-bottom:0}
  .jiaomian-hero{min-height:520px}
  .jiaomian-hero-copy{width:100%;padding:28px 22px 286px}
  .jiaomian-hero .image-slot{top:auto;bottom:0;width:100%;height:270px;clip-path:polygon(0 18%,100% 0,100% 100%,0 100%)}
  .scene-flow{grid-template-columns:1fr}
  .jiaomian-notes{columns:1}
  .jiaobu-shelf{grid-template-columns:1fr}
  .jiaobu-volume{min-height:0;display:block;border-left-width:5px}
  .jiaobu-volume h2{writing-mode:horizontal-tb;min-height:0;margin:0 0 10px}
  .jiaobu-volume p{margin-top:0}
  .jiaoci-track{padding-left:28px}
  .jiaoci-track:before{left:9px}
  .jiaoci-step:before{left:-25px}
  .xunjiao-band{grid-template-columns:1fr;gap:6px}
  .timeline-item{grid-template-columns:1fr;gap:5px}
  .timeline-item span:last-child{justify-self:start}
  .jiaobei-header{grid-template-columns:1fr}
  .kanjiao-path{grid-template-columns:1fr}
  .kanjiao-path .path-mid{writing-mode:horizontal-tb;padding:8px}
  .kanjiao-guide,.contact-wrap,.about-manifesto{grid-template-columns:1fr}
  .topic-item{grid-template-columns:1fr;gap:8px}
  .about-principles section{grid-template-columns:1fr;gap:4px}
  .footer-groups{grid-template-columns:1fr 1fr;gap:18px}
  .footer-bottom{flex-direction:column}
  .footer-bottom a{margin:0 12px 0 0}
  .site-drawer{right:0;top:8vh;width:88%;max-height:80vh;border-radius:5px 0 0 5px}
  .search-panel{inset:0;top:0;width:100%;height:100%;transform:none;background:var(--ink);color:var(--paper);border:0;border-radius:0;overflow:auto}
  .search-panel.is-open{transform:none}
  .search-panel-inner{min-height:100%;padding:calc(20px + env(safe-area-inset-top)) 16px calc(70px + env(safe-area-inset-bottom))}
  .search-panel-head strong{color:var(--gold)}
  .search-panel-head span{color:var(--paper)}
  .search-panel button{background:transparent;color:var(--gold);border-color:var(--gold)}
  .search-field span{color:var(--paper)}
  .search-field input{background:var(--content);color:var(--ink)}
  .search-presets{grid-template-columns:1fr}
  .search-presets a{background:#2a2418;color:var(--paper);border-color:rgba(184,148,58,.4)}
  .search-presets a span{color:#d8caa7}
  .mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:940;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(--ink);border-top:1px solid var(--gold)}
  .mobile-bottom a{min-height:48px;display:flex;align-items:center;justify-content:center;color:var(--paper);font-size:13px}
  .mobile-bottom a.is-current{background:var(--gold);color:var(--ink);font-weight:800}
}

@media (max-width:430px){
  .top-strip-inner,.brand-row-inner,.footer-inner,.page-shell{width:calc(100% - 32px)}
  .brand-logo{max-width:36%}
  .app-link,.drawer-open{font-size:13px;padding:0 8px}
  .home-app-media,.app-visual{grid-template-columns:56px 1fr;gap:10px}
  .home-app-media .image-slot:first-child,.app-visual .image-slot:first-child{height:56px;min-height:56px}
  .home-app-media .image-slot:last-child,.app-visual .image-slot:last-child{height:260px;min-height:260px}
  .period-row{grid-template-columns:68px 1fr;gap:10px}
  .footer-groups{grid-template-columns:1fr}
}
/* 条款页的独立视觉节奏 */
.install-steps{counter-reset:installstep}
.install-steps section{position:relative;padding-left:58px}
.install-steps section:before{counter-increment:installstep;content:counter(installstep);position:absolute;left:0;top:22px;width:36px;height:36px;border:1px solid var(--gold-dark);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--gold-dark);font-weight:800}
.rights-sections section{padding:24px 22px;margin:0 0 12px;background:var(--content);border:1px solid var(--line);border-left:4px solid var(--gold-dark)}
.rights-sections section:first-of-type{border-top:1px solid var(--line)}
.content-types section{padding:22px;margin:0 0 14px;background:linear-gradient(90deg,var(--secondary),var(--content));border:1px solid var(--line)}
.content-types section:nth-child(even){background:var(--content)}
.privacy-sections{display:grid;grid-template-columns:1fr 1fr;gap:14px;max-width:860px}
.privacy-sections section{padding:20px;background:var(--content);border:1px solid var(--line);border-top:4px solid var(--gold-dark)}
.privacy-sections section:first-of-type{border-top:4px solid var(--gold-dark)}
.privacy-sections section:last-child{grid-column:1/-1;background:var(--secondary)}
.home-app-media{grid-template-columns:48px minmax(0,1fr)}
.home-app-media .image-slot:first-child{height:48px;min-height:48px}
.app-visual{grid-template-columns:48px 1fr}
.app-visual .image-slot:first-child{height:48px;min-height:48px}
.btn-primary,.btn-secondary{min-height:44px}
@media (max-width:700px){
  .privacy-sections{grid-template-columns:1fr}
  .privacy-sections section:last-child{grid-column:auto}
  .install-steps section{padding-left:48px}
  .home-app-media,.app-visual{grid-template-columns:48px 1fr}
  .home-app-media .image-slot:first-child,.app-visual .image-slot:first-child{height:48px;min-height:48px}
}