/* yingsper.com — 共用样式。页面专属样式（小说阅读、演出应用、404）写在各自页面里。 */

/* ---------- 基础 ---------- */
:root{--ink:#1f2935;--ink-hover:#35465a;--paper:#f4f2eb;--muted:#535c67;--line:#c5cbd2;--accent:#b9c6d6;--leaf:#5c6f86;--soft:#616d7b;--wash:#dae0e8;--body:#3e4956;--sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:30px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{cursor:pointer}
a:focus-visible,button:focus-visible,input:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--leaf);outline-offset:4px}
::selection{background:var(--accent);color:var(--ink)}
[hidden]{display:none!important}
.skip{position:absolute;top:-80px;left:20px;background:var(--ink);color:#fff;padding:12px;z-index:300}
.skip:focus{top:10px}

/* ---------- 页头与页脚 ---------- */
.site-header,main,.site-footer{max-width:1440px;margin:auto}
.site-header{height:105px;padding:0 6%;display:flex;align-items:center;justify-content:space-between;gap:20px}
.wordmark{display:inline-flex;align-items:center;flex:none}
.wordmark img{display:block;height:46px;width:auto;margin-left:-7px}
.site-footer .wordmark img{margin-left:-5px}
.site-header nav{display:flex;gap:28px;font-size:14px}
.site-header nav a{padding:6px 0;border-bottom:1px solid transparent;transition:border-color .2s}
.site-header nav a:hover,.site-header nav a[aria-current]{border-bottom-color:var(--ink)}
.site-footer{padding:30px 6%;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:12px;color:var(--muted)}
.site-footer .wordmark img{height:34px}
.site-footer p{margin:0}
.site-footer small{display:block;font-size:10px}

/* ---------- 文字 ---------- */
.eyebrow{font-size:11px;letter-spacing:2.1px;font-weight:650;margin:0 0 20px;text-transform:uppercase}
.dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--leaf);margin-right:10px}
h1{font-size:clamp(56px,6.2vw,89px);font-weight:650;line-height:1.18;letter-spacing:-4px;margin:0 0 28px}
h2{font-size:40px;font-weight:550;line-height:1.4;letter-spacing:-1px;margin:0 0 24px}
h3{font-size:21px;font-weight:550;margin:0 0 10px}
.soft{font-weight:350;color:var(--soft)}
.lead{font-size:18px;line-height:1.9;margin:0;color:var(--muted)}
.muted{color:var(--muted);font-size:15px}
.caption{font-size:12px!important;color:var(--muted);line-height:1.8}
.hl{color:var(--ink);background:linear-gradient(transparent 62%,#b6c4d4 62%)}

/* ---------- 按钮、链接、标签 ---------- */
.button{display:inline-flex;align-items:center;justify-content:center;background:var(--ink);color:var(--paper);padding:13px 24px;border-radius:3px;font-size:14px;white-space:nowrap;border:0;transition:background .2s}
.button:hover{background:var(--ink-hover)}
.text-link{display:inline-block;font-size:14px;border-bottom:1px solid #99a2ae;padding:5px 0}
.text-link:hover{border-bottom-color:var(--ink)}
.status{display:inline-block;white-space:nowrap;font-size:11px;line-height:1.5;color:var(--muted);border:1px solid var(--line);padding:5px 9px;border-radius:20px}
.status.ready{background:#ccd5e1;border-color:#b0bfd1;color:#334356}
.tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto}
.tags span{font-size:11px;color:var(--muted);border:1px solid var(--line);border-radius:20px;padding:2px 9px}

/* ---------- 版块 ---------- */
.section{padding:78px 6%}
.compact{padding-top:15px}
.section-heading{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:32px}
.section-heading h2{margin:0}
.section-heading p:not(.eyebrow){font-size:14px;color:var(--muted);margin:0 0 4px}
.page-intro{padding:65px 6% 55px;margin:0 3%;border-top:1px solid var(--line)}
.page-intro h1{font-size:clamp(42px,5vw,70px);letter-spacing:-2px;line-height:1.3}
.page-intro .lead{font-size:17px}

/* ---------- 首页首屏 ---------- */
.hero{margin:0 3%;padding:55px 3.2% 0;border-top:1px solid var(--line);display:grid;grid-template-columns:1.1fr 1fr;gap:26px}
.hero .lead{letter-spacing:.5px}
.hero-actions{display:flex;gap:24px;align-items:center;margin-top:30px;flex-wrap:wrap}
.garden{min-height:440px;position:relative;overflow:hidden;background:#d4dce5;border-radius:48% 48% 0 0;margin:0 0 0 15px}
.orbit{position:absolute;border:1px solid #8594a7;border-radius:50%;left:50%;top:48%}
.orbit-one{width:240px;height:410px;transform:translate(-50%,-50%) rotate(-38deg)}
.orbit-two{width:380px;height:190px;transform:translate(-50%,-50%) rotate(35deg)}
.orbit-three{width:300px;height:300px;transform:translate(-50%,-50%);border-style:dashed;border-color:#9aa8b9}
.seed{position:absolute;left:50%;top:48%;transform:translate(-50%,-50%) rotate(-35deg);width:146px;height:205px;border-radius:65% 35% 65% 35%;background:radial-gradient(ellipse at 25% 20%,#b4c2d3 0%,#859cb8 35%,#506885 75%,#404e5f 100%);box-shadow:24px 30px 50px #3b4e6423}
.axis{position:absolute;font-size:10px;letter-spacing:2px}
.axis-a{top:20%;left:18%}.axis-b{right:12%;bottom:30%}.axis-c{top:16%;right:20%}
.garden-note{position:absolute;bottom:28px;left:28px;font-size:11px;letter-spacing:1.5px;line-height:1.7}
.coordinate{position:absolute;right:24px;bottom:28px;font-size:9px;writing-mode:vertical-rl;letter-spacing:1.5px}
.hero-bottom{grid-column:1/-1;display:flex;justify-content:space-between;gap:15px;padding:28px 0;border-bottom:1px solid var(--line);font-size:11px;letter-spacing:.8px;color:var(--muted)}

/* ---------- 卡片 ---------- */
.identity-grid,.project-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.project-grid.four{grid-template-columns:repeat(2,1fr)}
.identity-card,.project-card{display:flex;flex-direction:column;padding:25px;border:1px solid var(--line);border-radius:3px;min-height:260px;transition:background .2s,transform .2s}
a.project-card:hover{background:#dfe5ed;transform:translateY(-3px)}
.project-card.feature{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.project-card.feature p,.project-card.feature .number,.project-card.feature .en{color:#c4ccd5}
.project-card.feature .status{color:var(--ink);background:var(--accent);border-color:var(--accent)}
.project-card.feature .tags span{color:#c4ccd5;border-color:#4a596b}
.project-card.feature .card-link{border-top-color:#4a596b}
a.project-card.feature:hover{background:var(--ink-hover)}
.card-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px}
.number{font-size:11px;color:var(--muted)}
.seal{width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:var(--ink);color:var(--paper);font-size:17px}
.identity-card h3,.project-card h3{font-size:22px;line-height:1.45}
.identity-card p,.project-card p{font-size:14px;color:var(--muted);margin:0 0 22px}
.en{display:block;font-size:12px;font-weight:400;color:var(--soft);letter-spacing:.5px;margin-top:2px}
.card-link{display:flex;justify-content:space-between;font-size:12px;margin-top:20px;padding-top:14px;border-top:1px solid var(--line)}

/* ---------- 信念（首页） ---------- */
.belief{margin:0 3% 80px;padding:65px 3.2%;background:var(--wash);display:grid;grid-template-columns:1fr 1fr;gap:90px;align-items:center}
.belief h2{font-size:34px;line-height:1.55;margin:0}
.belief-card{background:var(--ink);color:#f2f0e7;padding:36px 34px}
.belief-card .mark{font-size:72px;line-height:.6;color:var(--accent);display:block;margin-bottom:18px}
.belief-card p{margin:0;font-size:17px;line-height:2}
.belief-card small{display:block;margin-top:20px;font-size:11px;letter-spacing:1.5px;color:#b0bac7}

/* ---------- 工作空间：架构图 ---------- */
.manifesto{margin:0 3% 60px;padding:65px 3.2%;background:var(--wash);display:grid;grid-template-columns:1fr 1fr;gap:90px}
.manifesto>div>p:not(.eyebrow){font-size:15px;color:var(--muted);max-width:440px}
.flow{padding:0 20px}
.flow>div{padding:18px 25px;border:1px solid #adb8c5;position:relative;background:#e6ebf0;margin-bottom:22px}
.flow>div:not(:nth-child(3))::after{content:'↓';position:absolute;bottom:-26px;left:50%;font-size:19px;color:#5f6e80}
.flow span,.flow small{display:block;font-size:11px;letter-spacing:1px}
.flow strong{font-size:20px;font-weight:500}
.flow .flow-center{background:var(--ink);color:#f2f0e7;border:0}
.flow-center strong{font-size:30px}

/* ---------- 笔记列表、收尾、提示 ---------- */
.note-feature{display:grid;grid-template-columns:1fr 1.3fr;gap:70px}
.note-list a{display:block;border-top:1px solid var(--line);padding:20px 0}
.note-list a:last-child{border-bottom:1px solid var(--line)}
.note-list a:hover h3{color:var(--ink-hover)}
.note-list span{font-size:11px;color:var(--muted)}
.note-list h3{font-size:19px;margin:7px 0}
.closing{margin:0 6% 80px;padding:35px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);display:flex;justify-content:space-between;gap:35px;align-items:center}
.closing h2{font-size:30px;margin-bottom:10px}
.closing p:not(.eyebrow){font-size:14px;color:var(--muted);margin:0}
.closing .eyebrow{margin-bottom:10px}
.notice{background:#dfe4eb;padding:25px 30px;margin:36px 0}
.notice p{margin:6px 0 0;color:var(--muted);font-size:14px}
.future-row{display:flex;align-items:start;gap:25px;padding:25px 0}
.future-row p{font-size:14px;color:var(--muted);margin:0}
.future-row>a{margin-left:auto;white-space:nowrap}

/* ---------- 详情页正文 ---------- */
.detail-layout{padding:20px 9% 90px;display:grid;grid-template-columns:190px minmax(0,1fr);gap:60px}
.detail-layout aside{font-size:12px;color:var(--muted)}
.detail-layout aside p{margin:25px 0}
.detail-layout aside .status{margin-bottom:4px}
.prose{max-width:800px;font-size:16px}
.prose h2{font-size:28px;letter-spacing:-.5px;margin:40px 0 16px}
.prose h2:first-child{margin-top:0}
.prose p{margin:0 0 18px;color:var(--body);line-height:1.95}
.prose ul,.prose ol{padding-left:23px;color:var(--body)}
.prose li{padding:6px 0}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin:28px 0}
.steps>div{border-top:1px solid var(--line);padding-top:15px}
.steps b{display:block;font-size:12px;color:#697685}
.steps strong{font-size:16px}
.steps p{font-size:13px;margin:8px 0}
.result{padding:25px;background:#d7dee7;display:flex;flex-direction:column;gap:8px}
.result span,.result small{font-size:12px;color:#495666}
.result strong{font-size:35px;font-weight:500}
.prompt-box{padding:24px;background:#e3e7ec;border:1px solid var(--line)}
.prompt-box p{font-size:15px}
.copy-button{border:1px solid var(--ink);background:transparent;color:var(--ink);font-size:12px;padding:8px 14px;border-radius:3px}
.copy-feedback{font-size:12px;margin-left:12px}

/* ---------- 笔记页 ---------- */
.notes-shell{display:grid;grid-template-columns:260px minmax(0,1fr);gap:70px;padding:10px 9% 80px;align-items:start}
.search-panel{position:sticky;top:30px}
.search-panel label{display:block;font-size:14px;margin-bottom:10px}
.search-panel input{width:100%;padding:12px;border:1px solid #a5aeb9;border-radius:3px;background:#faf9f3;color:var(--ink);font-size:14px}
.search-panel p,.search-panel small{font-size:12px;color:var(--muted)}
.filters{display:flex;gap:8px;flex-wrap:wrap;margin:20px 0}
.filters button{padding:6px 12px;font-size:12px;border:1px solid var(--line);border-radius:20px;background:transparent;color:var(--ink)}
.filters button[aria-pressed=true]{background:var(--ink);color:#fff;border-color:var(--ink)}
.note-article{border-top:1px solid var(--line);padding:28px 0 42px;scroll-margin-top:25px}
.note-meta{display:flex;flex-wrap:wrap;gap:15px;font-size:11px;color:var(--muted)}
.note-article h2{font-size:27px;margin:18px 0}
.note-summary{font-size:16px;border-left:2px solid #7c94b1;padding-left:17px;color:var(--muted);margin-bottom:25px}
.note-article .prose{font-size:15px}
.notes-shell+.section{padding:10px 9% 90px}
.notes-shell+.section h2{font-size:24px;padding-top:30px;border-top:1px solid var(--line)}
.notes-shell+.section ul{list-style:none;padding:0;margin:0}
.notes-shell+.section li a{display:flex;justify-content:space-between;padding:18px 0;border-bottom:1px solid var(--line);font-size:17px}
.notes-shell+.section li a::after{content:"↗"}
.notes-shell+.section li a:hover{color:var(--ink-hover)}

/* ---------- 路线页 ---------- */
.roadmap article{display:grid;grid-template-columns:1fr 2fr;gap:60px;border-top:1px solid var(--line);padding:38px 0}
.phase span{font-size:11px;letter-spacing:1.5px}
.phase h2{font-size:30px;margin:10px 0}
.phase small{font-size:12px;color:var(--muted)}
.roadmap h3{margin:0 0 20px}
.roadmap ul,.roadmap ol{padding-left:20px}
.roadmap li{padding:7px 0}
.roadmap li,.roadmap article p{font-size:15px;color:var(--body)}

/* ---------- 响应式 ---------- */
@media(max-width:850px){
 .site-header nav{gap:16px}
 .identity-grid,.project-grid,.project-grid.four{grid-template-columns:1fr}
 .identity-card,.project-card{min-height:0}
 .belief,.manifesto{gap:30px}
 .flow{padding:0}
 .detail-layout{grid-template-columns:140px minmax(0,1fr);gap:30px}
 .notes-shell{grid-template-columns:220px minmax(0,1fr);gap:35px}
 .note-feature{gap:30px}
}
@media(max-width:700px){
 .hero{padding:35px 4% 0;grid-template-columns:1fr;gap:35px}
 .garden{margin:0;min-height:330px;border-radius:46% 46% 0 0}
 .orbit-one{height:320px;width:190px}.orbit-two{width:290px;height:160px}.orbit-three{width:230px;height:230px}
 .seed{width:120px;height:170px}
 .hero-bottom{font-size:9px;letter-spacing:0;padding:20px 0}
 .belief,.manifesto{display:block;padding:40px 6%}
 .belief h2{font-size:26px}
 .belief-card{margin-top:30px;padding:28px 24px}
 .flow{margin-top:32px}
}
@media(max-width:600px){
 .site-header{height:auto;flex-wrap:wrap;gap:9px;padding:18px 7%}
 .wordmark img{height:38px;margin-left:-6px}
 .site-header nav{width:100%;justify-content:space-between;font-size:12px;gap:10px}
 h1{font-size:54px;letter-spacing:-3px}
 h2{font-size:31px}h3{font-size:19px}
 .eyebrow{font-size:10px;letter-spacing:1.4px}
 .lead{font-size:16px}
 .section{padding:50px 7%}
 .compact{padding-top:10px}
 .section-heading{display:block}
 .section-heading p:not(.eyebrow){margin-top:16px}
 .page-intro{padding:35px 4%}.page-intro h1{font-size:40px}.page-intro .lead{font-size:15px}
 .note-feature{display:block}.note-list{margin-top:30px}
 .closing{display:block;margin:0 7% 50px;padding:30px 0}
 .closing .button{margin-top:25px}
 .closing h2{font-size:26px}
 .notice{padding:20px}
 .future-row{flex-wrap:wrap;gap:12px}.future-row>a{margin-left:0}
 .detail-layout{display:block;padding:0 7% 55px}
 .detail-layout aside{display:flex;align-items:center;gap:15px;flex-wrap:wrap;padding:10px 0 30px}
 .detail-layout aside p{margin:0}
 .detail-layout aside a{margin-left:auto}
 .prose{font-size:15px}.prose h2{font-size:25px}
 .steps{gap:12px}.steps strong{font-size:14px}.steps p{font-size:12px}
 .notes-shell{display:block;padding:0 7% 50px}
 .search-panel{position:static;margin-bottom:30px}
 .note-article h2{font-size:25px}
 .notes-shell+.section{padding:10px 7% 60px}
 .roadmap article{display:block;padding:28px 0}
 .phase{margin-bottom:25px}
 .site-footer{padding:25px 7%;flex-wrap:wrap;gap:15px}
 .site-footer p{display:none}
}
/* About / works pages: the cards follow the page intro directly */
.page-intro+.section{padding-top:8px}
/* Homepage cover: the share image as a full-screen title slide */
.cover{min-height:calc(100vh - 105px);min-height:calc(100svh - 105px);display:flex;flex-direction:column;margin:0 6%;border-top:1px solid var(--line)}
.cover-body{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:clamp(28px,5vh,56px);padding:48px 0 24px;text-align:center}
.cover-mark{display:block;width:clamp(240px,46vw,620px);height:auto;margin-left:-2.5%}
.cover-tagline{margin:0;padding-left:.32em;font-size:clamp(15px,1.9vw,25px);letter-spacing:.32em;color:var(--body);font-weight:400}
.cover-tagline i{font-style:normal;margin:0 .5em;color:var(--soft)}
.cover-url{margin:0;padding:22px 0 30px;border-top:1px solid var(--line);text-align:center;font-family:Georgia,"Times New Roman",serif;font-size:14px;letter-spacing:.24em;color:#8b9199}
@media(max-width:600px){
 .site-header{height:64px;flex-wrap:nowrap;gap:12px;padding:0 6%}
 .wordmark img{height:30px;margin-left:-5px}
 .site-header nav{width:auto;justify-content:flex-end;font-size:13px;gap:20px}
 .home .site-header{justify-content:center}
 .home .site-header .wordmark{display:none}
 .cover{min-height:calc(100vh - 64px);min-height:calc(100svh - 64px);margin:0 6%}
 .cover-body{gap:44px;padding:20px 0}
 .cover-mark{width:74vw;max-width:340px}
 .cover-tagline{display:flex;flex-direction:column;gap:14px;font-size:16px;letter-spacing:.42em;padding-left:.42em}
 .cover-tagline i{display:none}
 .cover-url{font-size:12px;padding:18px 0 26px}
 .hero .lead{display:none}
 .belief h2{font-size:min(22px,6.6vw)}
 .page-intro h1 .soft{font-size:min(40px,8vw);white-space:nowrap}
 .page-intro .lead{text-wrap:balance}
 .manifesto h2{font-size:min(31px,8.4vw)}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}