/* V6 · 六项作品、三组城市入口与可读的技术案例。 */
.proj-index-cta { text-align: left; }
.proj-index-title { overflow-wrap: anywhere; }
#cityInfoPanel { scroll-margin-top: calc(var(--header-h) + 18px); }
.city-info-facts dd { line-height: 1.85; }
.collection-count { font: 10px var(--font-mono); letter-spacing: .12em; color: var(--steel); white-space: nowrap; }
.collection-intro { font-size: 13px; line-height: 1.85; max-width: 56ch; color: var(--text-light-2); }
.collection-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 12px; margin-top: 22px; }
.collection-card { display: flex; flex-direction: column; min-width: 0; padding: 21px; border: 1px solid var(--ink-line); background: rgba(168,184,212,.025); transition: border-color .2s,background .2s; }
.collection-card:hover,.collection-card:focus-visible { border-color: var(--gold); background: rgba(223,166,106,.055); }
.collection-card-top { display: flex; justify-content: space-between; gap: 8px; font: 9px var(--font-mono); line-height: 1.7; color: var(--steel); }
.collection-card-top > span:last-child { color: var(--gold); font-size: 16px; }
.collection-card h4 { margin: 14px 0 9px; font: 24px var(--font-display); color: var(--text-light); }
.collection-card p { font-size: 12px; line-height: 1.8; color: var(--text-light-2); }
.collection-card-stack { margin-top: auto; padding-top: 20px; font: 9px var(--font-mono); line-height: 1.9; color: var(--steel); overflow-wrap: anywhere; }
.detail-in { max-width: 1200px; padding-top: clamp(42px,6vw,74px); }
.detail h1 { font-size: clamp(42px,6.5vw,84px); }
.detail-subtitle { margin-top: 12px; font-size: 18px; color: var(--text-dark-2); }
.detail-sum { margin-top: 24px; max-width: 66ch; line-height: 1.9; }
.detail-stack .tag { font-size: 11px; }
.detail-jumps { display: flex; flex-wrap: wrap; gap: 24px; margin-top: 30px; padding-bottom: 28px; border-bottom: 1px solid var(--paper-line); }
.detail-jumps button { display: inline-flex; gap: 20px; min-height: 36px; align-items: center; font-size: 12px; color: var(--text-dark-2); }
.detail-jumps button:hover { color: var(--gold-deep); }
.detail-jumps span { font: 14px var(--font-mono); }
.project-context { display: grid; grid-template-columns: 140px minmax(0,1fr); gap: 28px; margin: 30px 0 48px; }
.project-context > span { color: var(--text-dark-2); font-size: 12px; padding-top: 4px; }
.project-context p { max-width: 70ch; font-size: 14px; line-height: 1.9; }
.case-study { border-top: 1px solid var(--paper-line); padding-top: 38px; scroll-margin-top: calc(var(--header-h) + 26px); }
.case-eyebrow { font: 10px var(--font-mono); letter-spacing: .18em; color: var(--gold-deep); }
.case-heading h2 { margin: 16px 0; max-width: 24ch; font: 400 clamp(27px,3.2vw,42px)/1.4 var(--font-display); letter-spacing: -.025em; text-wrap: balance; }
.case-heading > p:last-child { max-width: 68ch; font-size: 14px; color: var(--text-dark-2); line-height: 1.9; }
.case-diagram { margin-top: 28px; padding: clamp(20px,3vw,34px); color: var(--text-light); background: #10181f; border: 1px solid #26323c; position: relative; }
.case-diagram-label { display: flex; justify-content: space-between; gap: 10px; padding-bottom: 25px; font: 9px var(--font-mono); letter-spacing: .12em; color: #a4b5c0; }
.case-diagram-label > span:first-child { color: var(--gold); }
.case-flow { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 26px; }
.case-flow li { position: relative; min-width: 0; border-top: 1px solid #46515a; padding-top: 20px; }
.case-flow li:last-child { border-top-color: var(--gold); }
.case-flow li:not(:last-child)::after { content: '→'; position: absolute; right: -20px; top: 38px; color: #788b99; font: 16px var(--font-mono); }
.case-step-no { display: block; color: var(--gold); font: 10px var(--font-mono); letter-spacing: .1em; }
.case-flow h3 { margin: 15px 0 7px; font: 400 19px var(--font-display); }
.case-flow p { color: #a6b4bf; font-size: 11px; line-height: 1.85; }
.case-branch { margin-top: 30px; padding: 17px 0 0 16px; border-top: 1px dashed #394751; border-left: 1px solid #6c8395; font-size: 12px; line-height: 1.9; color: #b5c3cd; }
.case-branch > span { display: block; font-size: 10px; letter-spacing: .1em; color: var(--gold); margin-bottom: 7px; }
.case-insights { display: grid; grid-template-columns: repeat(auto-fit,minmax(190px,1fr)); gap: 28px; margin-top: 26px; }
.case-insights > div { padding: 19px 0; border-bottom: 1px solid var(--paper-line); }
.case-insights h3 { margin: 0 0 10px; font-size: 14px; font-weight: 500; }
.case-insights p { color: var(--text-dark-2); font-size: 12px; line-height: 1.95; }
.detail-blocks { margin-top: 38px; }
.dblock { grid-template-columns: 170px minmax(0,1fr); gap: 32px; }
.dblock p { max-width: 75ch; font-size: 14px; line-height: 1.95; }
.arch { margin-top: 40px; }
#archT,#implementation { scroll-margin-top: calc(var(--header-h) + 26px); }
.arch-cap:empty { display: none; }
.implementation-blocks { margin-top: 42px; }
.project-screen { margin: 36px 0 0; }
.project-screen figcaption { margin-top: 12px; font-size: 12px; color: var(--text-dark-2); }
.project-screen .detail-shot { margin: 0; }
.tl-period:empty { display: none; }
.tl-head:has(.tl-period:empty) { grid-template-columns: minmax(0,1fr) 32px; }
@media (max-width:820px) {
  .proj-index-title { font-size: 15px; }
  .collection-grid { gap: 10px; }
  .collection-card { padding: 18px 15px; }
  .collection-card h4 { font-size: 22px; }
  .detail-in { padding-left: 24px; padding-right: 24px; }
  .project-context { grid-template-columns: 1fr; gap: 10px; margin-bottom: 32px; }
  .case-heading h2 { font-size: 29px; }
  .case-flow { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 28px 24px; }
  .case-flow li:nth-child(2)::after { content: none; }
  .case-flow li:nth-child(3)::after { content: '→'; }
  .case-insights { grid-template-columns: 1fr; gap: 0; }
  .case-insights > div { padding: 18px 0; }
  .dblock { grid-template-columns: 1fr; gap: 13px; }
  .dblock h2 b { display: inline; margin-left: 10px; font-size: 18px; }
  .detail-subtitle { font-size: 15px; line-height: 1.8; }
  .detail-sum { font-size: 15px; }
  .detail-jumps { gap: 12px 20px; }
  .detail-jumps button { gap: 10px; }
  .detail-kicker { font-size: 10px; line-height: 1.8; }
}
@media (max-width:380px) {
  .proj-index-title { font-size: 13px; }
  .collection-grid { grid-template-columns: 1fr; }
  .collection-card { padding: 19px; }
  .case-heading h2 { font-size: 26px; }
  .case-flow h3 { font-size: 17px; }
  .case-diagram-label { letter-spacing: .04em; font-size: 8px; }
  .detail-nav button { padding: 0 8px; font-size: 10px; }
}