@font-face{font-family:YaoshiSong;src:local('SimSun');font-display:swap}
:root{--ink:#172633;--muted:#606771;--accent:#bb3727;--line:#263c5014;--ease:cubic-bezier(.22,1,.36,1)}
*{box-sizing:border-box}html{height:100%;overflow:hidden;scrollbar-gutter:auto}body{margin:0;background:#f1efeb;color:var(--ink);font:15px/1.65 'Microsoft YaHei','PingFang SC',sans-serif;background-image:radial-gradient(ellipse at 90% 4%,#e2eaf2 0,transparent 48%),radial-gradient(ellipse at 12% 80%,#f0ddd2 0,transparent 55%);background-attachment:fixed}::selection{background:#d9e5ed;color:#142532}button,input,textarea,select{font:inherit;color:inherit}button,a{touch-action:manipulation}button{cursor:pointer}a{color:inherit;text-decoration:none;text-underline-offset:5px}button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:2px solid #286582;outline-offset:4px}main:focus{outline:none}button{border:1px solid #263c501c;background:#ffffffab;padding:11px 20px;border-radius:12px;transition:background .2s,box-shadow .2s}button:hover{background:white;box-shadow:0 4px 12px #253b5010}button.primary{background:var(--accent);color:#fff;border-color:transparent;box-shadow:0 5px 12px #a9392320}button.primary:hover{background:#a42d20}button:disabled{opacity:.55;cursor:default}header{height:88px;padding:0 38px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:12px;white-space:nowrap}.brand svg{width:30px;height:34px}.brand strong{font-size:24px;letter-spacing:2px}.brand>span{margin-left:10px;padding-left:20px;border-left:1px solid #273e4b25;color:var(--muted);font-size:12px;letter-spacing:2px}.header-tools{display:flex;gap:20px;align-items:center;font-size:12px}#sceneSwitch{font-size:11px;background:transparent;border:0;color:#65717b;padding:8px}#spaceName{background:#ffffff75;padding:9px 16px;border-radius:20px;border:1px solid #fff;max-width:220px;text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.shell{display:grid;grid-template-columns:124px minmax(0,1fr);gap:20px;padding:0 28px 24px 12px;min-height:0}nav{position:sticky;top:20px;height:calc(100vh - 125px);display:flex;flex-direction:column;gap:20px;padding:28px 12px;border-radius:28px;background:linear-gradient(150deg,#ffffff9e,#ffffff30);border:1px solid #ffffffd9;backdrop-filter:blur(18px)}nav>a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;padding:18px 12px;border-radius:20px;color:#64707a;font-size:14px;transition:background .25s,color .25s,box-shadow .25s}nav svg{width:23px;height:23px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}nav>a:hover{background:#ffffff80;color:var(--ink)}nav a[aria-current=page]{background:#fff;color:var(--accent);box-shadow:0 8px 24px #48372b0b}nav .utility{margin-top:auto;text-align:center;font-size:11px;line-height:1.8;padding:12px 0;color:#576574}.utility a{display:block;padding:8px 0}#stage{position:relative;min-width:0;overflow:clip;border-radius:32px;padding-bottom:30px}main{position:relative;width:100%;max-width:1240px;min-height:0;margin:0 auto;padding:36px clamp(28px,4vw,64px) 52px;border:1px solid #fff;border-radius:32px;background:linear-gradient(145deg,#fffffff2,#fafbfbcf 58%,#f8f4efe8);box-shadow:0 18px 50px #30405307;transform-origin:50% 15%}.page-ghost{position:absolute!important;inset:0 0 auto!important;pointer-events:none;z-index:2;max-height:calc(100vh - 100px);overflow:hidden}.page-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;color:#69747a;font-size:11px;letter-spacing:1px}.preview-note{font-size:10px;letter-spacing:0;background:#f0f1ef;padding:5px 10px;border-radius:20px}.crumb{font-size:12px;display:flex;gap:12px;color:#748087}.crumb a{color:#344e5f}.page-heading{margin:24px 0 30px}h1{font-family:YaoshiSong,'Songti SC',serif;font-size:clamp(32px,3.4vw,48px);font-weight:400;letter-spacing:.035em;line-height:1.3;margin:0 0 14px}h2{font-size:19px;font-weight:500;line-height:1.55;margin:0 0 10px}p{margin:0 0 20px;max-width:68ch}.muted{color:var(--muted);font-size:13px}.page-heading>.muted{margin:0;line-height:1.8;max-width:65ch}.choices{display:grid;gap:16px;margin:30px 0 12px}.choice{display:block;position:relative;padding:26px 70px 26px 28px;border-radius:20px;background:linear-gradient(110deg,#f3f5f6b0,#ffffffa6);border:1px solid #ffffff;transition:background .25s,transform .25s}.choice::after{content:'→';position:absolute;right:28px;top:50%;transform:translateY(-50%);font-size:23px;font-weight:300;color:#69808d}.choice:hover{background:#eef2f4;transform:translateX(3px)}.choice strong{display:block;font-family:YaoshiSong,'Songti SC',serif;font-size:24px;font-weight:400;margin-bottom:8px}.choice span{display:block;font-size:13px;color:var(--muted);max-width:60ch}.actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:24px}.actions>a{color:var(--accent);font-size:13px;padding:8px 0}.actions>a:hover{text-decoration:underline}#feed{display:grid;gap:16px}.feed-card{position:relative;border:1px solid #fff;border-radius:22px;padding:24px 30px;background:linear-gradient(110deg,#f3f4f5a8,#ffffffd9);display:grid;grid-template-columns:minmax(0,1fr) auto;column-gap:24px;align-items:start}.feed-card:first-child{background:linear-gradient(110deg,#f7eeea,#fffaf5 58%,#fbfcfd)}.feed-card .tag{grid-column:1/-1;justify-self:start;font-size:10px;line-height:1.5;padding:4px 9px;background:#e7edf0;color:#455f6e;border-radius:6px;letter-spacing:.035em}.tag[data-type=content]{background:#f2ddd4;color:#9b3423}.tag[data-type=opportunity]{background:#e8e6ef;color:#5d527a}.tag[data-type=execution]{background:#e3eee9;color:#3c6756}.feed-card h2{grid-column:1;margin:12px 0 7px;font-size:19px}.feed-card>p{grid-column:1;font-size:12px;color:#646d74;line-height:1.8;margin:0;max-width:62ch}.feed-card details{grid-column:1;font-size:11px;color:#68747e;margin:12px 0 0}.feed-card details p{margin-top:10px}.feed-card .actions{grid-column:2;grid-row:2/5;align-self:center;margin:0}.feed-card .actions a{border:1px solid #dacfc3;background:#fff8;padding:10px 14px;border-radius:10px;white-space:nowrap;color:#7c493d}.feed-card .actions a:hover{background:#fff;text-decoration:none}.feed-card .actions a span{margin-left:12px}.feed-card:first-child .actions a{background:var(--accent);color:white;border-color:transparent}#feedMore{margin-top:24px;text-align:center}#feedMore button{font-size:12px;border:0;background:transparent;color:#647684}#feedEnd{padding-top:24px;font-size:12px;color:#66747a}section.block{padding:24px 0;border-bottom:1px solid var(--line)}section.block p{font-size:14px;color:#53616a;margin-bottom:0}form{max-width:680px}label{display:block;margin:22px 0 10px;font-size:13px}input:not([type=checkbox]),textarea,select{width:100%;padding:13px 16px;background:#fff9;border:1px solid #cdd5d7;border-radius:12px;caret-color:var(--accent)}textarea{min-height:155px;resize:vertical;line-height:1.9}form>.primary{margin-top:22px}.radio{display:flex;gap:10px;align-items:start}.radio input{margin-top:5px;accent-color:var(--accent)}details{margin:18px 0}summary{cursor:pointer}.preview{padding:24px;border:1px solid var(--line);border-radius:16px;white-space:pre-wrap;background:#fff8}.status{padding:14px 18px;border-radius:12px;background:#e8eff1}.ai{position:fixed;right:46px;bottom:25px;display:flex;align-items:center;gap:12px;padding:12px 22px;border-radius:30px;background:#ffffffb8;border:1px solid #fff;backdrop-filter:blur(20px);box-shadow:0 8px 28px #33485c18;font-size:13px;z-index:5}.ai-orbit{width:23px;height:23px;border-radius:50%;background:radial-gradient(circle at 35% 30%,white 3%,#d8e3f7 22%,#879dc0 53%,#c8b8d7 73%,#eef2ff);box-shadow:inset 0 0 5px white,0 2px 6px #667dae25}.ai:hover{box-shadow:0 10px 32px #33485c28}dialog{width:min(540px,calc(100% - 32px));border:1px solid #fff;border-radius:28px;padding:36px;background:#f8fafaf5;box-shadow:0 24px 90px #17263324;max-height:90vh;overflow:auto}dialog::backdrop{background:#1d324b30;backdrop-filter:blur(7px)}#notice{position:fixed;bottom:30px;left:50%;transform:translateX(-50%);background:#213540;color:#fff;padding:12px 24px;border-radius:14px;max-width:90vw;font-size:13px;z-index:20}#notice:empty{display:none}::-webkit-scrollbar{width:7px}::-webkit-scrollbar-thumb{background:#bfc8ca;border-radius:8px}::-webkit-scrollbar-track{background:transparent}
@media(min-width:1550px){.shell{grid-template-columns:140px minmax(0,1fr);gap:28px}main{padding-top:45px}.feed-card{padding:30px 34px}}
@media(max-width:850px){header{padding:0 22px}.brand>span{display:none}.shell{grid-template-columns:90px minmax(0,1fr);gap:12px;padding-left:8px;padding-right:16px}nav{padding:20px 6px}nav>a{padding:16px 8px}.feed-card{padding:22px;display:block}.feed-card .actions{margin-top:14px}.feed-card details{margin-top:10px}.page-meta{font-size:10px}.ai{right:25px}main{padding:28px}}
@media(max-width:560px){header{height:76px;padding:0 16px}.brand{gap:8px}.brand strong{font-size:22px}.brand svg{width:24px}.header-tools{gap:4px;flex-direction:column;align-items:end}#sceneSwitch{font-size:11px;padding:2px 0}#spaceName{font-size:12px;padding:4px 9px;max-width:150px}.shell{display:block;padding:0 12px 110px;min-height:0}nav{position:fixed;top:auto;bottom:14px;left:16px;right:16px;height:68px;z-index:10;padding:5px 12px;display:grid;grid-template-columns:repeat(3,1fr);gap:10px;background:#ffffffdb;border-radius:24px;box-shadow:0 5px 30px #2037481a}nav>a{flex-direction:row;gap:9px;padding:10px 12px;border-radius:18px;font-size:12px}nav svg{width:19px;height:19px}.utility{display:none}#stage{border-radius:24px;padding-bottom:0}main{border-radius:24px;padding:25px 20px 65px;min-height:0}h1{font-size:34px}.page-meta{gap:6px;letter-spacing:0}.preview-note{font-size:11px;padding:3px 6px}.page-heading{margin:23px 0}.feed-card{border-radius:18px;padding:20px}.feed-card h2{font-size:18px}.feed-card .actions a{font-size:12px}.choice{padding:23px 45px 23px 22px}.choice::after{right:20px}.choice strong{font-size:22px}.choice span{font-size:12px}.ai{bottom:96px;right:22px;padding:10px 14px;font-size:11px}.ai-orbit{width:18px;height:18px}dialog{padding:26px}.actions{gap:12px}.crumb{font-size:11px}#notice{bottom:100px}#feedMore{margin-top:14px}}
@media(prefers-reduced-motion:reduce){html:not([data-motion=full]) *,html:not([data-motion=full]) *::before,html:not([data-motion=full]) *::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
/* A short reflection marks only the newly selected navigation item. */
nav>a{position:relative;overflow:hidden}
nav>a[aria-current=page]::after{content:'';position:absolute;inset:-20%;pointer-events:none;background:linear-gradient(115deg,transparent 30%,#ffffffa8 48%,transparent 66%);animation:selection-reflection .7s cubic-bezier(.22,1,.36,1) both}
@keyframes selection-reflection{from{transform:translateY(-100%);opacity:0}35%{opacity:.6}to{transform:translateY(100%);opacity:0}}
@media(prefers-reduced-motion:reduce){html:not([data-motion=full]) nav>a[aria-current=page]::after{animation:none}}

/* Keep editable content readable on narrow screens and with long text. */
main{overflow-wrap:anywhere}#draft{min-height:280px}#draftStatus{margin:12px 0 0}.radio input{flex-shrink:0}.radio strong{font-weight:500}input:not([type=checkbox]),textarea,select{font-size:16px}dialog h2{margin-top:0}
@media(max-width:560px){.feed-card>p,.choice span,.page-heading>.muted,section.block p,label{font-size:14px}.feed-card .tag,.feed-card details{font-size:12px}#draft{min-height:320px}}

/* One viewport: only the central reading area scrolls. */
body{height:100dvh;overflow:hidden;display:flex;flex-direction:column}
header{height:94px;flex-shrink:0;padding-inline:32px}
.brand{gap:12px;min-width:0}.brand .brand-mark{width:44px;height:44px;flex-shrink:0}
.brand strong{font-size:25px;letter-spacing:.02em;font-weight:650}.brand-ai{font-size:22px;margin-left:5px;font-weight:500;letter-spacing:-.03em}
.brand>.slogan{display:block;border:0;padding:0;margin-left:18px;font-size:13px;letter-spacing:.1em;color:#53636b}
.header-tools{flex-shrink:0}#spaceName{font-size:13px;padding:9px 17px}#sceneSwitch{font-size:11px;color:#53636b}
.shell{flex:1;min-height:0;grid-template-columns:108px minmax(0,1fr);gap:28px;padding:0 32px 80px 20px;align-items:start}
nav{position:relative;top:0;height:auto;width:108px;padding:10px;gap:8px;border-radius:28px;background:linear-gradient(145deg,#ffffffc9,#ffffff65);backdrop-filter:blur(24px);box-shadow:0 10px 30px #28394209}
nav>a{min-height:100px;padding:13px 8px;gap:8px;border-radius:20px;font-size:15px;font-weight:600;letter-spacing:.12em;color:#3f525b}
.nav-icon{display:grid;place-items:center;width:42px;height:38px}nav svg{width:32px;height:32px;fill:currentColor;stroke:none}
nav>a:hover{background:#ffffffa8;color:#192d36}
nav a[aria-current=page]{color:#f9f4eb;background:#233943;box-shadow:0 6px 16px #192d361c}
nav a[aria-current=page] .nav-icon{color:#edac8d}
nav>a[aria-current=page]::after{animation-duration:.65s;background:linear-gradient(115deg,transparent 30%,#ffffff2e 48%,transparent 66%)}
#stage{height:100%;padding:0;border-radius:28px;background:linear-gradient(145deg,#fffffff2,#fafbfbe8 58%,#f8f4eff2);border:1px solid #fff;overflow:hidden;isolation:isolate}
main{height:100%;min-height:0;max-width:none;margin:0;padding:0;background:transparent;border:0;border-radius:0;box-shadow:none;display:flex;flex-direction:column;overflow:hidden}
.page-intro{flex-shrink:0;padding:26px clamp(24px,4vw,64px) 0}
.page-heading{margin:18px 0 22px}.page-meta>span:first-child{display:none}.page-meta{justify-content:flex-end}.preview-note{font-size:11px;background:transparent;padding:0}
h1{font-size:clamp(30px,3vw,44px);margin-bottom:10px}
.page-scroll{flex:1;min-height:0;overflow-y:auto;overflow-x:hidden;overscroll-behavior:contain;scrollbar-gutter:stable;padding:0 clamp(24px,4vw,64px) 30px;scroll-padding-block:20px;outline:none}
.page-scroll:focus-visible{outline:2px solid #286582;outline-offset:-3px}
.page-scroll>.choices{margin-top:4px}.page-scroll>form:first-child>label:first-child{margin-top:6px}
.page-ghost{height:100%;max-height:none;inset:0!important;z-index:2;background:transparent}
.feed-card{padding:24px 28px;border-radius:18px}.feed-card h2{font-size:20px}.feed-card>p{font-size:14px;line-height:1.8}.feed-card details{font-size:12px}.feed-card .tag{font-size:11px}.feed-card .actions a{font-size:13px}
.ai{right:34px;bottom:19px;gap:15px;padding:10px 16px 10px 10px;min-height:48px;border:0;border-radius:18px;background:#203640;color:#faf6ee;box-shadow:0 7px 20px #192d3624;font-size:15px;font-weight:500;letter-spacing:.08em;backdrop-filter:none}
.ai:hover{background:#304c58;box-shadow:0 9px 22px #192d362b}.ai-symbol{width:32px;height:32px;display:grid;place-items:center;border-radius:10px;background:#ffffff12;color:#efb498}.ai svg{width:24px;height:24px;fill:currentColor;stroke:none}.ai>svg{width:19px;height:19px;margin-left:9px;color:#d3dedf}
dialog{padding:30px;border:0;border-radius:24px;background:#f8f8f4;max-height:calc(100dvh - 36px)}.dialog-heading{margin-bottom:24px}.dialog-mark{font-size:13px;font-weight:650;letter-spacing:.08em;color:#a63d2b}.dialog-heading h2{font-family:YaoshiSong,'Songti SC',serif;font-size:30px;margin:12px 0 0}.dialog-heading+#aiContext{font-size:14px;color:#53636b}#notice{bottom:20px}
@media(min-width:1550px){.shell{grid-template-columns:108px minmax(0,1fr);gap:32px}main{padding:0}.feed-card{padding:28px 32px}}
@media(max-width:1000px){.brand>.slogan{font-size:11px;letter-spacing:.02em;margin-left:5px}.header-tools{gap:8px}.shell{gap:18px;padding-right:20px}.feed-card{display:block}.feed-card .actions{margin-top:14px}}
@media(max-width:700px){header{height:100px;padding:15px 18px;align-items:flex-start;position:relative}.brand{gap:9px}.brand .brand-mark{width:36px;height:36px}.brand strong{font-size:22px}.brand-ai{font-size:19px}.brand>.slogan{position:absolute;left:20px;bottom:12px;margin:0;font-size:11px;letter-spacing:.04em}.header-tools{flex-direction:column;align-items:flex-end;gap:2px}#spaceName{font-size:12px;padding:3px 10px;max-width:130px}#sceneSwitch{font-size:11px;padding:0}
.shell{display:block;padding:0 12px 140px;min-height:0}nav{position:fixed;width:auto;top:auto;bottom:14px;left:16px;right:16px;height:66px;display:grid;grid-template-columns:repeat(3,1fr);gap:6px;padding:7px;border-radius:22px;z-index:10;background:#ffffffc9}nav>a{min-height:0;flex-direction:row;padding:8px 7px;gap:7px;border-radius:16px;font-size:14px;letter-spacing:.03em}.nav-icon{width:25px;height:28px}nav svg{width:26px;height:26px}
#stage{border-radius:23px}.page-intro{padding:20px 20px 0}.page-heading{margin:12px 0 18px}h1{font-size:31px}.page-heading>.muted{font-size:13px}.page-scroll{padding:0 18px 24px;scrollbar-gutter:auto}.feed-card{padding:19px;border-radius:16px}.feed-card h2{font-size:19px}.feed-card>p{font-size:14px}.feed-card .actions a{font-size:13px}.preview-note{font-size:11px}.crumb{font-size:12px}
.ai{right:17px;bottom:88px;padding:6px 12px 6px 7px;min-height:42px;border-radius:14px;font-size:14px;gap:10px}.ai-symbol{width:28px;height:28px}.ai>svg{margin-left:0;width:17px}#notice{bottom:140px}dialog{padding:24px}.dialog-heading h2{font-size:25px}
}
@media(max-height:620px) and (min-width:701px){header{height:72px}.shell{padding-bottom:65px}nav>a{min-height:78px}.page-intro{padding-top:16px}.page-heading{margin:10px 0 14px}h1{font-size:30px}.ai{bottom:10px}}