/* ============================================================
   开云安装 · 共享样式 /assets/site.css
   深空蓝基底 / 霓虹青-荧光橙信号色 / 纸张叠层 + 印刷刻度
   ============================================================ */

/* ---------- 1. reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:clamp(96px,10vw,124px)}
body,h1,h2,h3,h4,p,ul,ol,li,figure,blockquote,dl,dd,table,th,td{margin:0}
ul,ol{list-style:none;padding:0}
img,svg,video{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;padding:0}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}
h1,h2,h3,h4{text-wrap:balance}

/* ---------- 2. tokens ---------- */
:root{
  --ink-900:#050E1F;
  --ink-800:#0A1A33;
  --ink-700:#122A4D;
  --ink-600:#1C3A66;
  --cyan:#22E6C8;
  --cyan-deep:#0FA894;
  --orange:#FF7A2F;
  --signal:#FFD166;
  --moss:#5C7A5A;
  --moss-soft:#9FBE9C;
  --clay:#C4714B;
  --stone:#8A93A6;
  --paper:#F4F1E8;
  --mist:#DCE7F5;
  --line:rgba(138,147,166,.24);
  --line-strong:rgba(138,147,166,.42);
  --ease:cubic-bezier(.2,.7,.2,1);
  --shadow:0 30px 60px -34px rgba(0,0,0,.95);
  --font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"IBM Plex Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
}

/* ---------- 3. base ---------- */
body{
  min-height:100%;
  padding-top:clamp(84px,8vw,104px);
  font-family:var(--font-body);
  font-size:1rem;
  line-height:1.75;
  color:var(--mist);
  background-color:var(--ink-900);
  background-image:
    radial-gradient(920px 520px at 10% -10%, rgba(34,230,200,.16), transparent 62%),
    radial-gradient(780px 460px at 92% 2%, rgba(255,122,47,.13), transparent 60%),
    linear-gradient(180deg,#050E1F 0%,#0A1A33 44%,#07152A 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(138,147,166,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(138,147,166,.055) 1px,transparent 1px);
  background-size:72px 72px;
  mask-image:radial-gradient(120% 90% at 50% 0%,#000 20%,transparent 78%);
}
body>*{position:relative;z-index:1}

h1{font-size:clamp(2.6rem,6vw,5.4rem);line-height:1.04;letter-spacing:-.02em;font-weight:800;color:var(--paper)}
h2{font-size:clamp(1.8rem,3.4vw,2.9rem);line-height:1.12;letter-spacing:-.015em;font-weight:800;color:var(--paper)}
h3{font-size:clamp(1.12rem,1.7vw,1.45rem);line-height:1.32;font-weight:700;color:var(--paper)}
p{max-width:42ch}
::selection{background:rgba(34,230,200,.28);color:#04121F}

:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}

/* ---------- 4. skip link ---------- */
.skip-link{
  position:absolute;left:clamp(16px,4vw,40px);top:10px;z-index:140;
  transform:translateY(-180%);
  padding:10px 18px;border-radius:999px;
  background:var(--cyan);color:#031320;font-size:.86rem;font-weight:700;
  transition:transform .22s var(--ease);
}
.skip-link:focus{transform:none}

/* ---------- 5. header ---------- */
.site-header{
  --header-pad:clamp(10px,1.6vw,18px);
  position:fixed;top:0;left:0;right:0;z-index:100;
  padding:var(--header-pad) clamp(14px,3vw,32px) 0;
  pointer-events:none;
  transition:padding-top .3s var(--ease);
}
.site-header>*{pointer-events:auto}
.site-header[data-scrolled]{--header-pad:8px}

.progress-rail{
  position:absolute;top:0;left:0;right:0;height:2px;
  background:rgba(138,147,166,.18);overflow:hidden;
}
.progress-fill{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--cyan),var(--orange));
  box-shadow:0 0 14px rgba(34,230,200,.75);
  transition:width .14s linear;
}

.header-shell{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  max-width:1280px;margin:0 auto;
  padding:9px 12px 9px 14px;
  border:1px solid var(--line);
  border-radius:999px;
  background:linear-gradient(180deg,rgba(12,30,58,.88),rgba(5,14,31,.95));
  box-shadow:0 22px 48px -28px rgba(0,0,0,.95),inset 0 1px 0 rgba(220,231,245,.09);
  backdrop-filter:blur(14px) saturate(1.2);
  transition:padding .3s var(--ease),border-color .3s var(--ease);
}
.site-header[data-scrolled] .header-shell{
  padding:6px 10px 6px 12px;
  border-color:rgba(34,230,200,.32);
}

/* brand */
.brand{display:inline-flex;align-items:center;gap:10px;min-width:0}
.brand-mark{
  position:relative;display:grid;place-items:center;flex:0 0 auto;
  width:36px;height:36px;border-radius:11px;
  border:1px solid rgba(34,230,200,.45);
  background:linear-gradient(140deg,rgba(34,230,200,.22),rgba(255,122,47,.18));
  font-family:var(--font-mono);font-size:.78rem;font-weight:700;letter-spacing:.06em;
  color:var(--cyan);
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.brand-mark::after{
  content:"";position:absolute;inset:-3px;border-radius:14px;
  border:1px solid rgba(34,230,200,.16);
}
.brand:hover .brand-mark{border-color:var(--cyan);box-shadow:0 0 22px -6px rgba(34,230,200,.8)}
.brand-text{display:flex;flex-direction:column;line-height:1.15;min-width:0}
.brand-name{font-size:1rem;font-weight:800;letter-spacing:.04em;color:var(--paper)}
.brand-sub{
  font-family:var(--font-mono);font-size:.62rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--stone);white-space:nowrap;
}

/* nav capsule */
.nav-capsule{
  position:absolute;top:var(--header-pad);left:50%;transform:translateX(-50%);
  z-index:3;
}
.nav-list{
  display:flex;align-items:center;gap:2px;
  padding:5px;border-radius:999px;
  border:1px solid rgba(138,147,166,.2);
  background:linear-gradient(180deg,rgba(8,20,40,.92),rgba(5,14,31,.96));
  box-shadow:0 18px 40px -26px rgba(0,0,0,.95),inset 0 1px 0 rgba(220,231,245,.06);
}
.nav-list>li{display:flex}
.nav-link{
  display:block;padding:9px 13px;border-radius:999px;
  font-size:.9rem;font-weight:500;color:rgba(220,231,245,.72);
  white-space:nowrap;
  transition:color .2s var(--ease),background-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-link:hover{color:var(--cyan);background:rgba(34,230,200,.09)}
.nav-link[aria-current="page"]{
  color:#031320;font-weight:700;
  background:linear-gradient(135deg,var(--cyan),#1EC9AE);
  box-shadow:0 8px 22px -12px rgba(34,230,200,.95),inset 0 0 0 1px rgba(255,255,255,.16);
}
.nav-link[aria-current="page"]::before{
  content:"";display:inline-block;width:5px;height:5px;margin-right:7px;
  border-radius:50%;background:#031320;vertical-align:middle;
}

/* header actions */
.header-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto}

/* nav toggle */
.nav-toggle{
  display:none;align-items:center;gap:9px;flex:0 0 auto;
  padding:9px 15px;border-radius:999px;cursor:pointer;
  border:1px solid rgba(34,230,200,.38);
  background:rgba(34,230,200,.07);
  color:var(--mist);font-size:.82rem;letter-spacing:.06em;font-weight:600;
  transition:background-color .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.nav-toggle:hover{background:rgba(34,230,200,.16);color:var(--cyan);border-color:var(--cyan)}
.nav-toggle-bars{display:grid;gap:4px;width:18px}
.nav-toggle-bars span{display:block;height:2px;border-radius:2px;background:currentColor;transition:transform .24s var(--ease),opacity .2s var(--ease)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* drawer */
.nav-drawer{
  position:absolute;z-index:4;top:calc(var(--header-pad) + 62px);
  left:max(14px,3vw);right:max(14px,3vw);
  max-width:520px;margin:0 auto;display:none;
  padding:16px;border-radius:18px;
  border:1px solid rgba(34,230,200,.3);
  background:linear-gradient(160deg,rgba(10,26,51,.98),rgba(5,14,31,.99));
  box-shadow:0 34px 70px -30px rgba(0,0,0,.95);
}
.drawer-inner{display:grid;gap:8px}
.drawer-eyebrow{
  font-family:var(--font-mono);font-size:.66rem;letter-spacing:.2em;
  text-transform:uppercase;color:var(--stone);
}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 14px;border-radius:12px;
  border:1px solid rgba(138,147,166,.22);
  background:rgba(138,147,166,.06);
  color:var(--mist);font-size:.94rem;font-weight:600;
  transition:border-color .2s var(--ease),color .2s var(--ease),background-color .2s var(--ease);
}
.drawer-link::after{content:"\2192";font-family:var(--font-mono);color:var(--stone)}
.drawer-link:hover{border-color:var(--cyan);color:var(--cyan);background:rgba(34,230,200,.09)}
.drawer-link--accent{
  border-color:rgba(255,122,47,.5);
  background:rgba(255,122,47,.1);
  color:var(--orange);
}
.drawer-link--accent:hover{border-color:var(--orange);color:var(--orange);background:rgba(255,122,47,.18)}
.drawer-meta{
  margin-top:6px;font-family:var(--font-mono);font-size:.74rem;
  letter-spacing:.04em;color:var(--stone);
}

/* ---------- 6. buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 18px;border-radius:999px;cursor:pointer;
  border:1px solid transparent;
  font-size:.9rem;font-weight:600;letter-spacing:.02em;white-space:nowrap;
  transition:background-color .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-signal{
  color:#04121F;
  background:linear-gradient(135deg,var(--cyan),#17C9B4);
  box-shadow:0 0 0 1px rgba(34,230,200,.35),0 12px 30px -16px rgba(34,230,200,.95);
}
.btn-signal:hover{
  background:linear-gradient(135deg,#4DF3DA,#1ED0BA);
  box-shadow:0 0 0 1px rgba(34,230,200,.6),0 16px 36px -14px rgba(34,230,200,.8);
}
.btn-ghost{border-color:rgba(220,231,245,.28);color:var(--mist)}
.btn-ghost:hover{border-color:var(--orange);color:var(--orange);background:rgba(255,122,47,.09)}

/* ---------- 7. footer ---------- */
.site-footer{
  position:relative;isolation:isolate;
  margin-top:clamp(64px,9vw,120px);
  padding:clamp(52px,7vw,88px) clamp(16px,4vw,40px) 28px;
  border-top:1px solid var(--line);
  background:
    radial-gradient(760px 320px at 8% 0%,rgba(34,230,200,.1),transparent 62%),
    radial-gradient(620px 300px at 92% 10%,rgba(255,122,47,.09),transparent 60%),
    linear-gradient(180deg,rgba(10,26,51,.55),#050E1F 46%);
  overflow:hidden;
}
.footer-tilt{
  position:absolute;top:-12px;left:-2%;right:-2%;height:14px;
  transform:skewY(-2.2deg);transform-origin:left center;opacity:.5;
  background-image:repeating-linear-gradient(90deg,rgba(34,230,200,.55) 0 2px,transparent 2px 18px);
  pointer-events:none;
}
.footer-shell{
  position:relative;z-index:1;
  max-width:1280px;margin:0 auto;
  display:grid;gap:clamp(28px,4vw,52px);
}
.footer-top{display:grid;gap:clamp(28px,4vw,56px);grid-template-columns:1fr}
.footer-brand{display:grid;gap:14px;align-content:start;max-width:440px}
.brand--footer .brand-name{font-size:1.08rem}
.footer-note{font-size:.94rem;line-height:1.8;color:var(--stone);max-width:36ch}
.footer-status{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--moss-soft);
}
.footer-status::before{
  content:"";width:7px;height:7px;border-radius:50%;
  background:var(--moss);box-shadow:0 0 0 4px rgba(92,122,90,.2);
}
.footer-cols{display:grid;gap:clamp(20px,3vw,32px);grid-template-columns:repeat(auto-fit,minmax(150px,1fr))}
.footer-col-title{
  margin-bottom:14px;padding-bottom:10px;
  border-bottom:1px solid var(--line);
  font-size:.82rem;font-weight:700;letter-spacing:.16em;color:var(--paper);
}
.footer-links{display:grid;gap:10px}
.footer-link{
  display:inline-block;font-size:.92rem;color:rgba(220,231,245,.66);
  transition:color .2s var(--ease);
}
.footer-link:hover{color:var(--cyan)}
.footer-link--inline{color:var(--cyan);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.footer-link--inline:hover{color:var(--orange)}
.footer-contact{
  display:grid;gap:14px;
  padding:clamp(16px,2.4vw,26px);
  border:1px solid var(--line);border-radius:16px;
  background:linear-gradient(160deg,rgba(10,26,51,.72),rgba(5,14,31,.86));
}
.footer-label{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.2em;text-transform:uppercase;color:var(--stone)}
.footer-contact-list{display:grid;gap:10px}
.footer-contact-item{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:.9rem}
.fc-key{flex:0 0 62px;font-size:.76rem;letter-spacing:.1em;color:var(--stone)}
.fc-val{font-family:var(--font-mono);font-variant-numeric:tabular-nums;color:var(--mist);word-break:break-all}
.copy-btn{
  padding:4px 12px;border-radius:999px;cursor:pointer;
  border:1px solid rgba(138,147,166,.34);
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.12em;
  color:var(--stone);
  transition:border-color .2s var(--ease),color .2s var(--ease),background-color .2s var(--ease);
}
.copy-btn:hover{border-color:var(--cyan);color:var(--cyan);background:rgba(34,230,200,.1)}
.copy-btn[data-copied]{border-color:var(--moss);color:var(--moss-soft);background:rgba(92,122,90,.16)}
.footer-service{font-size:.85rem;line-height:1.8;color:var(--stone);max-width:64ch}
.footer-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 24px;
  padding-top:22px;border-top:1px dashed rgba(138,147,166,.3);
  font-family:var(--font-mono);font-size:.76rem;letter-spacing:.03em;color:var(--stone);
}
.footer-legal{display:inline-flex;flex-wrap:wrap;gap:16px}
.footer-legal .footer-link{font-size:.78rem}
.footer-icp{color:var(--stone)}
.footer-copyright{color:rgba(220,231,245,.6)}

/* ---------- 8. care dock ---------- */
.care-dock{
  position:fixed;right:clamp(14px,2vw,26px);bottom:clamp(14px,2vw,26px);
  z-index:110;display:flex;flex-direction:column;align-items:flex-end;gap:10px;
}
.care-panel{
  display:none;width:min(286px,82vw);
  padding:16px;border-radius:16px;
  border:1px solid rgba(34,230,200,.34);
  background:linear-gradient(160deg,rgba(10,26,51,.98),rgba(5,14,31,.99));
  box-shadow:0 30px 60px -28px rgba(0,0,0,.95);
}
.care-dock[data-open] .care-panel{display:grid;gap:10px;animation:careIn .26s var(--ease)}
.care-title{font-size:.86rem;font-weight:700;letter-spacing:.08em;color:var(--cyan)}
.care-text{font-size:.82rem;line-height:1.72;color:var(--stone)}
.care-link{
  display:block;padding:9px 12px;border-radius:10px;
  border:1px solid rgba(34,230,200,.36);
  text-align:center;font-size:.86rem;font-weight:600;color:var(--mist);
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.care-link:hover{background:rgba(34,230,200,.12);color:var(--cyan);border-color:var(--cyan)}
.care-link--quiet{border-color:rgba(138,147,166,.3);color:var(--stone)}
.care-toggle{
  display:inline-flex;align-items:center;gap:9px;cursor:pointer;
  padding:11px 18px;border-radius:999px;
  border:1px solid rgba(34,230,200,.42);
  background:linear-gradient(135deg,rgba(34,230,200,.16),rgba(255,122,47,.12));
  color:var(--mist);font-size:.86rem;font-weight:600;
  box-shadow:0 16px 34px -20px rgba(34,230,200,.9);
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.care-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.care-dot{
  width:8px;height:8px;border-radius:50%;background:var(--cyan);
  box-shadow:0 0 0 4px rgba(34,230,200,.18);
}

@keyframes careIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
@keyframes drawerIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}

/* ---------- 9. page shell ---------- */
.shell{width:100%;max-width:1280px;margin:0 auto;padding-inline:clamp(16px,4vw,40px)}
.shell--narrow{max-width:920px}
.bleed-top{margin-top:calc(-1 * clamp(84px,8vw,104px))}

.section{position:relative;padding-block:clamp(44px,6vw,80px)}
.section--ruled{border-top:1px solid var(--line)}
.section.is-current .section-title{color:var(--cyan)}
.section-head{display:grid;gap:14px;max-width:780px;margin-bottom:clamp(24px,3vw,40px)}
.section-title{
  font-size:clamp(1.8rem,3.4vw,2.9rem);line-height:1.12;font-weight:800;
  letter-spacing:-.015em;color:var(--paper);
  transition:color .3s var(--ease);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;
  color:var(--cyan);
}
.eyebrow::before{content:"";width:26px;height:1px;background:linear-gradient(90deg,var(--cyan),transparent)}
.lede{font-size:clamp(1rem,1.4vw,1.1rem);line-height:1.82;color:rgba(220,231,245,.78);max-width:44ch}

/* 非对称编辑网格 */
.layout{display:grid;gap:clamp(20px,3vw,40px)}
.layout--solo,.layout--flip{display:grid;gap:clamp(20px,3vw,40px)}
.rail{display:none}
.note-col{
  display:grid;gap:14px;align-content:start;
  padding:20px;border-radius:14px;
  border:1px dashed rgba(138,147,166,.34);
  background:rgba(244,241,232,.035);
}
.note-col-title{
  font-family:var(--font-mono);font-size:.66rem;letter-spacing:.2em;
  text-transform:uppercase;color:var(--orange);
}
.note-text{font-size:.88rem;line-height:1.78;color:var(--stone);max-width:32ch}

.tilt-band{
  height:52px;margin-block:clamp(24px,4vw,48px);
  transform:skewY(-2.4deg);
  background:linear-gradient(90deg,rgba(34,230,200,.16),rgba(255,122,47,.13) 55%,rgba(92,122,90,.14));
}

.anchor-list{display:flex;flex-wrap:wrap;gap:8px}
.anchor-link{
  padding:6px 13px;border-radius:999px;
  border:1px solid rgba(138,147,166,.3);
  font-size:.8rem;color:var(--stone);
  transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease);
}
.anchor-link:hover{color:var(--mist);border-color:rgba(34,230,200,.45)}
.anchor-link[aria-current="true"]{
  color:#031320;background:var(--cyan);border-color:var(--cyan);font-weight:700;
}

/* ---------- 10. crumbs / prose / tags ---------- */
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--stone);
}
.crumb-link{color:var(--stone);transition:color .2s var(--ease)}
.crumb-link:hover{color:var(--cyan)}
.crumb-sep{color:rgba(138,147,166,.5)}
.crumb-current{color:var(--mist)}

.prose{display:grid;gap:16px;max-width:40ch;font-size:1rem;line-height:1.85;color:rgba(220,231,245,.82)}
.prose h3{color:var(--paper);margin-top:6px}
.prose ul{display:grid;gap:10px}
.prose li{position:relative;padding-left:18px;max-width:40ch}
.prose li::before{content:"";position:absolute;left:0;top:.82em;width:8px;height:1px;background:var(--cyan)}
.prose a{color:var(--cyan);border-bottom:1px solid rgba(34,230,200,.4)}
.prose a:hover{color:var(--orange);border-color:rgba(255,122,47,.5)}

.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:5px 11px;border-radius:999px;
  border:1px solid rgba(138,147,166,.36);
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;
  color:var(--stone);
}
.tag--live{border-color:rgba(34,230,200,.5);color:var(--cyan);background:rgba(34,230,200,.09)}
.tag--soon{border-color:rgba(255,122,47,.5);color:var(--orange);background:rgba(255,122,47,.09)}
.tag--done{border-color:rgba(92,122,90,.6);color:var(--moss-soft);background:rgba(92,122,90,.16)}
.tag--paused{border-color:rgba(196,113,75,.55);color:var(--clay);background:rgba(196,113,75,.12)}
.tag--signal{border-color:rgba(255,209,102,.55);color:var(--signal);background:rgba(255,209,102,.1)}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:-.02em}

/* ---------- 11. cards ---------- */
.card{
  position:relative;overflow:hidden;
  padding:clamp(18px,2.4vw,26px);
  border:1px solid var(--line);border-radius:16px;
  background:linear-gradient(165deg,rgba(12,30,58,.72),rgba(5,14,31,.9));
  transition:border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.card::after{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:linear-gradient(115deg,transparent 36%,rgba(34,230,200,.16) 50%,transparent 64%);
  background-size:220% 100%;background-position:130% 0;opacity:0;
  transition:opacity .3s var(--ease),background-position .7s var(--ease);
}
.card:hover{border-color:rgba(34,230,200,.55);box-shadow:0 24px 50px -32px rgba(34,230,200,.6)}
.card:hover::after{opacity:1;background-position:-30% 0}
.card-title{font-size:1.08rem;font-weight:700;color:var(--paper)}
.card-text{margin-top:8px;font-size:.92rem;line-height:1.75;color:rgba(220,231,245,.72);max-width:40ch}
.card-meta{margin-top:14px;display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.card--paper{
  border-color:rgba(5,14,31,.35);
  background:linear-gradient(165deg,#F4F1E8,#E7E2D4);
  color:#0A1A33;
}
.card--paper .card-title{color:#0A1A33}
.card--paper .card-text{color:#38465C}
.card--paper .num{color:#0A1A33}

/* ---------- 12. frame / timeline / matrix / skilltree / offset ---------- */
.frame{
  position:relative;
  padding:clamp(20px,3vw,38px);
  border:1px solid rgba(34,230,200,.35);border-radius:20px;
  background:linear-gradient(150deg,rgba(10,26,51,.86),rgba(5,14,31,.95));
}
.frame::before,.frame::after{content:"";position:absolute;width:22px;height:22px;border:2px solid var(--cyan);opacity:.85}
.frame::before{top:-1px;left:-1px;border-right:0;border-bottom:0;border-top-left-radius:20px}
.frame::after{bottom:-1px;right:-1px;border-left:0;border-top:0;border-bottom-right-radius:20px}
.frame-corner{
  position:absolute;top:-11px;right:20px;
  padding:3px 11px;border-radius:999px;
  background:var(--ink-900);border:1px solid rgba(34,230,200,.42);
  font-family:var(--font-mono);font-size:.64rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--cyan);
}
.frame-scale{
  display:flex;justify-content:space-between;gap:4px;margin-top:14px;
  font-family:var(--font-mono);font-size:.64rem;letter-spacing:.14em;color:var(--stone);
}

.timeline{position:relative;display:grid;gap:22px;padding-left:26px}
.timeline::before{
  content:"";position:absolute;left:7px;top:6px;bottom:6px;width:1px;
  background:linear-gradient(180deg,rgba(255,122,47,.8),rgba(34,230,200,.5),rgba(138,147,166,.2));
}
.tl-item{position:relative;display:grid;gap:6px}
.tl-node{
  position:absolute;left:-26px;top:7px;width:15px;height:15px;border-radius:50%;
  background:var(--ink-900);border:2px solid var(--orange);
  box-shadow:0 0 0 4px rgba(255,122,47,.14);
}
.tl-item--done .tl-node{border-color:var(--moss);box-shadow:0 0 0 4px rgba(92,122,90,.18)}
.tl-item--next .tl-node{border-color:var(--cyan);box-shadow:0 0 0 4px rgba(34,230,200,.18)}
.tl-label{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.16em;color:var(--stone)}
.tl-title{font-size:1rem;font-weight:700;color:var(--paper)}
.tl-text{font-size:.9rem;line-height:1.72;color:rgba(220,231,245,.7);max-width:40ch}

.matrix-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:14px;padding:6px clamp(8px,2vw,16px)}
.matrix{min-width:520px;font-size:.88rem;font-variant-numeric:tabular-nums}
.matrix caption{
  caption-side:top;text-align:left;padding-bottom:12px;
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.18em;text-transform:uppercase;color:var(--stone);
}
.matrix th,.matrix td{padding:11px 12px;border-bottom:1px solid rgba(138,147,166,.2);text-align:left}
.matrix-head th{
  position:sticky;top:0;z-index:1;
  background:rgba(5,14,31,.96);
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--stone);font-weight:500;
}
.matrix tbody tr{transition:background-color .2s var(--ease)}
.matrix tbody tr:hover{background:rgba(34,230,200,.07)}
.matrix-cell--num{font-family:var(--font-mono);color:var(--paper)}

.skilltree{display:grid;gap:clamp(18px,2.4vw,26px)}
.step{
  position:relative;
  padding:20px;border-radius:16px;
  border:1px solid var(--line);
  background:linear-gradient(165deg,rgba(12,30,58,.7),rgba(5,14,31,.88));
}
.step::after{
  content:"";position:absolute;top:36px;right:-14px;width:14px;height:1px;
  background:rgba(34,230,200,.5);
}
.step:last-child::after{display:none}
.step-index{font-family:var(--font-mono);font-size:1.6rem;font-weight:700;color:var(--cyan);letter-spacing:-.02em}
.step-title{margin-top:8px;font-size:1rem;font-weight:700;color:var(--paper)}
.step-text{margin-top:8px;font-size:.9rem;line-height:1.72;color:rgba(220,231,245,.72)}
.step-link{
  display:inline-block;margin-top:14px;
  font-family:var(--font-mono);font-size:.74rem;letter-spacing:.12em;
  color:var(--orange);
}
.step-link:hover{color:var(--cyan)}

.offset{display:grid;gap:clamp(18px,3vw,36px)}
.offset-body{display:grid;gap:14px;align-content:start}
.offset-note{
  padding-left:14px;border-left:2px solid var(--orange);
  font-size:.86rem;line-height:1.72;color:var(--stone);max-width:34ch;
}

/* ---------- 13. media ---------- */
.media{
  position:relative;overflow:hidden;
  border:1px solid rgba(138,147,166,.3);border-radius:16px;
  aspect-ratio:16/9;
  background:linear-gradient(160deg,rgba(12,30,58,.9),rgba(5,14,31,.96));
}
.media img{width:100%;height:100%;object-fit:cover}
.media--wide{aspect-ratio:21/9}
.media--tall{aspect-ratio:3/4}
.media--square{aspect-ratio:1/1}
.media--plot::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(138,147,166,.14) 1px,transparent 1px),
    linear-gradient(90deg,rgba(138,147,166,.14) 1px,transparent 1px);
  background-size:44px 44px;
}
.media--plot::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:52%;pointer-events:none;
  background:linear-gradient(180deg,transparent,rgba(34,230,200,.18) 58%,rgba(255,122,47,.2));
  clip-path:polygon(0 62%,12% 40%,26% 58%,40% 26%,56% 44%,70% 18%,84% 38%,100% 12%,100% 100%,0 100%);
}
.media-caption{
  margin-top:10px;font-family:var(--font-mono);font-size:.72rem;
  letter-spacing:.06em;color:var(--stone);
}

/* ---------- 14. motion ---------- */
.reveal{
  opacity:0;transform:translateY(12px);
  transition:opacity .32s var(--ease),transform .32s var(--ease);
}
.reveal.is-visible{opacity:1;transform:none}

/* ---------- 15. responsive ---------- */
@media (min-width:820px){
  .skilltree{grid-template-columns:repeat(auto-fit,minmax(210px,1fr))}
}
@media (min-width:900px){
  .offset{grid-template-columns:minmax(0,5fr) minmax(0,6fr);align-items:start}
  .offset-media{margin-top:clamp(24px,4vw,64px)}
  .offset--reverse .offset-media{margin-top:0;margin-bottom:clamp(24px,4vw,64px)}
  .offset--reverse .offset-media{order:2}
}
@media (min-width:1024px){
  .footer-top{grid-template-columns:minmax(0,1.1fr) minmax(0,1.7fr)}
  .layout{grid-template-columns:56px minmax(0,6.4fr) minmax(260px,3fr)}
  .layout--solo{grid-template-columns:56px minmax(0,1fr)}
  .layout--flip{grid-template-columns:minmax(260px,3fr) minmax(0,6.4fr) 56px}
  .rail{
    display:flex;flex-direction:column;gap:12px;align-items:center;
    font-family:var(--font-mono);font-size:.66rem;letter-spacing:.16em;color:var(--stone);
  }
  .rail-index{writing-mode:vertical-rl;text-orientation:mixed}
  .rail::after{content:"";flex:1 1 auto;width:1px;background:linear-gradient(180deg,rgba(138,147,166,.5),transparent)}
}
@media (max-width:1180px){
  .nav-link{padding:8px 10px;font-size:.85rem}
  .header-actions .btn-ghost{display:none}
}
@media (max-width:980px){
  .nav-link{padding:8px 9px;font-size:.82rem}
  .header-actions .btn{padding:9px 14px;font-size:.85rem}
}
@media (max-width:900px){
  .site-header{padding-left:12px;padding-right:12px}
  .header-shell{padding:8px 10px 8px 12px}
  .header-actions{display:none}
  .nav-toggle{display:inline-flex}
  .nav-capsule{position:fixed;top:auto;left:0;right:0;bottom:0;transform:none;z-index:90}
  .nav-list{
    justify-content:space-between;gap:0;padding:7px 6px calc(7px + env(safe-area-inset-bottom));
    border:0;border-top:1px solid rgba(34,230,200,.22);border-radius:0;
    background:linear-gradient(180deg,rgba(6,16,34,.94),rgba(5,14,31,.99));
    backdrop-filter:blur(16px);
    box-shadow:0 -20px 40px -30px rgba(0,0,0,.95);
  }
  .nav-item{flex:1 1 0;text-align:center}
  .nav-item--drawer{display:none}
  .nav-link{padding:9px 3px;border-radius:10px;font-size:.76rem;letter-spacing:.02em}
  .nav-link[aria-current="page"]{background:rgba(34,230,200,.14);color:var(--cyan);box-shadow:none}
  .nav-link[aria-current="page"]::before{display:none}
  .nav-drawer{top:calc(var(--header-pad) + 60px);left:12px;right:12px}
  .site-header[data-open] .nav-drawer{display:block;animation:drawerIn .28s var(--ease)}
  body{padding-bottom:calc(76px + env(safe-area-inset-bottom))}
  .care-dock{bottom:calc(88px + env(safe-area-inset-bottom))}
}
@media (max-width:560px){
  .brand-mark{width:32px;height:32px;border-radius:10px;font-size:.72rem}
  .brand-sub{display:none}
  .brand-name{font-size:.94rem}
  .header-shell{padding:7px 8px 7px 10px}
  .nav-toggle-text{display:none}
  .nav-toggle{padding:9px 12px}
  .nav-link{font-size:.72rem}
  .footer-meta{font-size:.72rem;gap:8px 16px}
  .fc-key{flex-basis:100%}
  .lede,.prose{max-width:100%}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .reveal{opacity:1;transform:none}
  .card:hover::after{opacity:0}
  .site-header[data-open] .nav-drawer{animation:none}
  .care-dock[data-open] .care-panel{animation:none}
}