/* 模块 01 · 认识 Agent 与项目 */

/* ===== 1 · Agent：不只回答 ===== */
.ad { display: flex; flex-direction: column; min-height: 100%; }
.ad-formula { margin-top: 12px; display: flex; flex-wrap: wrap; align-items: baseline; gap: .1em .32em; font-family: var(--display); font-size: clamp(2rem, 3.5vw, 3.7rem); font-weight: 650; letter-spacing: -.035em; line-height: 1.05; }
.ad-formula span { color: var(--on-ink); transition: color .4s, text-shadow .4s; }
.ad-formula span:first-child { color: var(--on-ink-muted); }
.ad-formula i { font-style: normal; color: var(--on-ink-muted); font-weight: 300; }
.ad-formula span.on { color: var(--mark); text-shadow: 0 0 28px rgba(255, 216, 77, .45); }
.ad-sub { margin-top: 6px; font-size: var(--t-lede); color: var(--on-ink-2); }
.ad-lanes { margin-top: clamp(14px, 2.2vh, 26px); display: grid; grid-template-columns: minmax(250px, .72fr) 2fr; gap: 18px; flex: 1; align-items: stretch; }
.ad-chat, .ad-agent { border-radius: 20px; padding: 18px 20px 20px; position: relative; }
.ad-chat { box-shadow: inset 0 0 0 1px var(--line-ink); }
.ad-agent { background: var(--ink-2); box-shadow: inset 0 0 0 1px var(--line-ink); }
.ad-lane-h { display: flex; align-items: baseline; gap: 10px; margin-bottom: 14px; }
.ad-lane-h b { font-size: 1.05rem; }
.ad-lane-h span { font-size: .84rem; color: var(--on-ink-muted); }
.ad-lane-h .btn { margin-left: auto; color: var(--on-ink); }
.ad-ask { display: table; margin: 0 0 14px auto; padding: 7px 14px; border-radius: 14px 14px 4px 14px; background: rgba(241, 239, 233, .1); font-size: .9rem; }
.ad-answer { white-space: pre-wrap; font-size: .92rem; line-height: 1.75; color: var(--on-ink-2); min-height: 7.2em; }
.ad-end { margin-top: 14px; font-size: .82rem; color: var(--on-ink-muted); opacity: 0; transform: translateY(4px); transition: opacity .5s, transform .5s var(--ease); border-top: 1px dashed var(--line-ink-2); padding-top: 10px; }
.ad-end.show { opacity: 1; transform: none; }
.ad-agent .ad-ask { margin-left: 0; margin-right: auto; border-radius: 14px 14px 14px 4px; }
.ad-agent .ad-lane-h + .ad-ask { display: none; }
.ad-work { display: grid; grid-template-columns: 1.3fr minmax(220px, .9fr); gap: 18px; align-items: start; }
.ad-log { display: grid; gap: 0; min-height: 240px; align-content: start; }
.ad-log li { display: grid; grid-template-columns: 3.4em minmax(0, 1fr) auto; grid-template-areas: "tag tool st" "tag text st"; column-gap: 10px; padding: 3px 10px; border-radius: 10px; }
.ad-log li.new { background: rgba(255, 216, 77, .07); animation: log-in .5s var(--ease); }
@keyframes log-in { from { opacity: 0; transform: translateY(6px); } }
.ad-tag { grid-area: tag; align-self: start; margin-top: 3px; font: 500 .68rem/1 var(--mono); padding: 4px 0; text-align: center; border-radius: 5px; background: rgba(241, 239, 233, .08); color: var(--on-ink-2); }
.ad-tag[data-tag="工具"] { color: var(--mark); background: rgba(255, 216, 77, .12); }
.ad-tag[data-tag="循环"] { color: #63d69b; background: rgba(99, 214, 155, .12); }
.ad-tag[data-tag="模型"] { color: #a8b2ff; background: rgba(168, 178, 255, .12); }
.ad-tool { grid-area: tool; font: .78rem/1.5 var(--mono); color: var(--on-ink-muted); }
.ad-text { grid-area: text; font-size: .9rem; line-height: 1.5; }
.ad-log .st { grid-area: st; align-self: center; }
.ad-preview .bw { transform-origin: top right; }
.ad-page { padding: 14px 16px 16px; color: #111; min-height: 250px; }
.ad-page-t { font-weight: 650; font-size: 1rem; margin-bottom: 10px; }
.ad-page-empty { height: 172px; border: 1.5px dashed #d6d6dc; border-radius: 10px; display: grid; place-items: center; font-size: .8rem; color: #a0a0a8; }
.ad-page .mean { gap: 8px; }
.ad-page .mean-eq { font-size: .7rem; }
.ad-page .mean output { font-size: 1.7rem; }
.ad-page .mean-bars { height: 96px; gap: 7px; }
.ad-page .mean-range { font-size: .74rem; gap: 8px; }
.ad-preview[data-pv="0"] .mean { display: none; }
.ad-preview:not([data-pv="0"]) .ad-page-empty { display: none; }
.ad-result { font-size: .8rem; line-height: 1.6; }
.ad-result dl { margin: 10px 0; }
.ad-result dl div { display: flex; justify-content: space-between; padding: 7px 0; border-bottom: 1px solid #ddd; }
.ad-result dd { margin: 0; font-weight: 650; }
.ad-preview[data-pv="0"] .ad-result, .ad-preview[data-pv="1"] .ad-result-good, .ad-preview[data-pv="2"] .ad-result-bad { display: none; }
.ad-preview[data-pv="1"] .mean { position: relative; }
.ad-preview[data-pv="1"] .mean-range { position: absolute; left: 6%; right: 6%; top: 74px; padding: 6px 10px; border-radius: 10px; background: #fff; box-shadow: 0 0 0 2px var(--bad), 0 8px 20px rgba(0, 0, 0, .18); }
.ad-preview[data-pv="1"] .bw { box-shadow: 0 0 0 1px rgba(0, 0, 0, .08), 0 0 0 4px rgba(223, 71, 71, .35); }
.ad-preview[data-pv="2"] .bw { box-shadow: 0 0 0 1px rgba(0, 0, 0, .08), 0 0 0 4px rgba(35, 149, 95, .4); }
.ad-take { margin-top: 14px; max-width: 52em; font-size: 1rem; color: var(--on-ink-2); }
.ad .src { margin-top: 8px; }
.ad > .note { color: var(--on-ink-2); }
@media (min-width: 761px) and (max-height: 800px) {
  .ad-lanes { margin-top: 12px; }
  .ad-chat, .ad-agent { padding: 14px 16px; }
  .ad-lane-h { margin-bottom: 8px; }
  .ad-log li { padding-top: 2px; padding-bottom: 2px; }
  .ad-take { margin-top: 8px; }
  .ad .src { margin-top: 4px; }
}

/* ===== 2 · 地铁线路图 ===== */
.al { display: grid; grid-template-columns: minmax(0, 1fr) minmax(250px, 320px); grid-template-areas: "top top" "map detail" "note note"; column-gap: clamp(24px, 4vw, 64px); row-gap: 18px; align-items: start; }
.al-top { grid-area: top; }
.al-map { grid-area: map; margin-top: 26px; --name: 210px; }
.al-stations { display: grid; grid-template-columns: var(--name) repeat(6, minmax(0, 1fr)); font-size: .9rem; font-weight: 500; color: var(--muted); text-align: center; padding-bottom: 6px; border-bottom: 1px solid var(--line); }
.al-line { width: 100%; display: grid; grid-template-columns: var(--name) minmax(0, 1fr); align-items: center; height: clamp(84px, 12.5vh, 118px); text-align: left; border-bottom: 1px solid var(--line); transition: opacity .35s; }
.al-name { display: flex; flex-direction: column; line-height: 1.3; }
.al-name b { font-size: 1.32rem; letter-spacing: -.015em; }
.al-name small { font-size: .78rem; color: var(--muted); }
.al-track { position: relative; height: 100%; }
.al-bar, .al-more, .al-dot { position: absolute; top: 50%; }
.al-bar { left: calc((var(--s) + .5) / 6 * 100% - 6px); width: calc((var(--e) - var(--s)) / 6 * 100% + 12px); height: 14px; margin-top: -7px; border-radius: 14px; background: var(--c); transform-origin: left; transition: height .3s var(--ease), margin .3s var(--ease); }
.page.in .al-bar { animation: bar-draw 1s var(--ease) both; animation-delay: calc(.25s + var(--s) * 60ms); }
@keyframes bar-draw { from { transform: scaleX(0); } }
.al-more { left: calc((var(--e) + .5) / 6 * 100% + 4px); width: calc(.5 / 6 * 100%); height: 0; border-top: 4px dotted var(--c); margin-top: -2px; opacity: .7; }
.al-dot { left: calc((var(--k) + .5) / 6 * 100%); width: 10px; height: 10px; margin: -5px 0 0 -5px; border-radius: 50%; background: var(--line-2); z-index: 1; }
.al-dot.on { width: 24px; height: 24px; margin: -12px 0 0 -12px; background: var(--white); box-shadow: inset 0 0 0 4.5px var(--c); }
.al-line:hover .al-bar, .al-line[aria-pressed="true"] .al-bar { height: 18px; margin-top: -9px; }
.al-map[data-sel] .al-line:not([aria-pressed="true"]) { opacity: .32; }
.al-map[data-sel] .al-line:not([aria-pressed="true"]):hover { opacity: .7; }
.al-detail { grid-area: detail; margin-top: 40px; display: grid; gap: 10px; align-content: start; }
.al-kind { display: flex; align-items: center; gap: 8px; font-size: .8rem; color: var(--muted); }
.al-kind::before { content: ""; width: 22px; height: 6px; border-radius: 6px; background: var(--c); }
.al-detail p:not(.al-kind) { font-size: 1.05rem; line-height: 1.75; color: var(--text-2); }
.al-detail .sub { font-size: 1.7rem; }
.al-detail .out { justify-self: start; margin-top: 4px; }
.al-note { grid-area: note; max-width: 52em; }

/* ===== 3 · Harness ===== */
.hn { display: grid; grid-template-columns: minmax(320px, 1fr) minmax(340px, 1.08fr); grid-template-areas: "copy fig" "src foot"; column-gap: clamp(28px, 4vw, 64px); align-items: center; }
.hn-copy { grid-area: copy; }
.hn-parts { margin-top: 22px; display: grid; border-top: 1px solid var(--line-ink); }
.hn-parts button { display: flex; align-items: baseline; gap: 14px; padding: 7px 2px; border-bottom: 1px solid var(--line-ink); text-align: left; transition: color .2s, padding .3s var(--ease); }
.hn-parts b { font-size: 1rem; min-width: 6em; }
.hn-parts small { font-size: .82rem; color: var(--on-ink-muted); }
.hn-parts button:hover { padding-left: 8px; }
.hn-parts button[aria-pressed="true"] { color: var(--mark); padding-left: 8px; }
.hn-parts button[aria-pressed="true"] small { color: var(--on-ink-2); }
.hn-detail { margin-top: 16px; min-height: 9.6em; }
.hn-detail p { margin-top: 8px; color: var(--on-ink-2); }
.hn-ex { padding: 10px 14px; border-radius: 12px; background: rgba(255, 216, 77, .08); color: var(--on-ink) !important; }
.hn-ex span { display: block; font-size: .74rem; color: var(--mark); letter-spacing: .04em; }
.hn-fig { grid-area: fig; align-self: center; }
.hn-fig svg { width: 100%; max-height: calc(100dvh - var(--top) - var(--bottom) - 150px); margin: 0 auto; overflow: visible; }
.hn-ticks line { stroke: rgba(241, 239, 233, .16); stroke-width: 1; }
.hn-orbit { fill: none; stroke: rgba(241, 239, 233, .28); stroke-width: 1.2; stroke-dasharray: 2 7; }
.hn-way circle { fill: var(--on-ink-muted); transition: fill .3s, r .3s; }
.hn-way text { fill: var(--on-ink-muted); font-size: 14px; font-family: var(--sans); paint-order: stroke; stroke: var(--ink); stroke-width: 6px; transition: fill .3s; }
.hn-way.on circle { fill: var(--mark); }
.hn-way.on text { fill: var(--on-ink); }
.hn-arc { cursor: pointer; }
.hn-arc path { fill: #1b1b20; stroke: rgba(241, 239, 233, .14); stroke-width: 1; transition: fill .3s; }
.hn-arc text { fill: var(--on-ink-2); font-size: 15px; font-weight: 600; font-family: var(--sans); pointer-events: none; transition: fill .3s; }
.hn-arc:hover path { fill: #27272e; }
.hn-arc.on path { fill: var(--mark); }
.hn-arc.on text { fill: var(--ink); }
.hn-core { fill: #0c0c0e; stroke: var(--mark); stroke-width: 1.4; }
.hn-core-glow { fill: rgba(255, 216, 77, .07); }
.hn-core-t { fill: var(--on-ink); font-size: 28px; font-weight: 650; font-family: var(--display); }
.hn-core-s { fill: var(--on-ink-muted); font-size: 13px; font-family: var(--sans); }
.hn-packet { fill: var(--mark); filter: drop-shadow(0 0 7px rgba(255, 216, 77, .85)); }
.hn-foot { grid-area: foot; margin-top: 8px; font-size: .86rem; color: var(--on-ink-muted); max-width: 40em; align-self: start; justify-self: center; text-align: center; }
.hn .src { grid-area: src; align-self: end; }

/* ===== 4 · 四层嵌套 ===== */
.ev { display: grid; grid-template-columns: minmax(300px, .9fr) minmax(0, 1.25fr); gap: clamp(28px, 4vw, 60px); align-items: center; min-height: 100%; }
.ev-seg { margin-top: 24px; }
.ev-detail { margin-top: 20px; min-height: 12.5em; }
.ev-full { font: .78rem/1.5 var(--mono); color: var(--muted); }
.ev-detail .sub { margin-top: 4px; }
.ev-detail p { margin-top: 8px; color: var(--text-2); }
.ev-ex { padding-left: 14px; border-left: 3px solid var(--mark); }
.ev-detail .src { margin-top: 12px; }
.ev-note { margin-top: 14px; }
.ev-view { position: relative; aspect-ratio: 1.2; max-height: calc(100dvh - var(--top) - var(--bottom) - 50px); width: 100%; overflow: hidden; border-radius: 26px; background: var(--white); box-shadow: 0 0 0 1px var(--line), 0 30px 60px -36px rgba(0, 0, 0, .35); }
.ev-nest { position: absolute; inset: 0; transform: scale(var(--z, 1)); transform-origin: 50% 54%; transition: transform 1s var(--ease); }
.ev-l { position: absolute; border-radius: 18px; border: 1.5px solid var(--line-2); transition: border-color .4s, background-color .4s, box-shadow .4s; }
.ev-loop { inset: 5%; }
.ev-harness { inset: 22% 12% 9%; }
.ev-context { inset: 22% 13% 10%; }
.ev-prompt { inset: 28% 17% 16%; display: grid; place-items: center; padding: 6px 10px; }
.ev-prompt p { font-size: .58rem; line-height: 1.55; color: var(--text); text-align: left; }
.ev-lab { position: absolute; left: 10px; top: 8px; font: 600 .62rem/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--muted); padding: 3px 5px; border-radius: 4px; transition: background-color .3s, color .3s; }
.ev-prompt .ev-lab { font-size: .42rem; left: 6px; top: 5px; }
.ev-context .ev-lab { font-size: .5rem; }
.ev-cycle { position: absolute; top: 9%; left: 50%; transform: translateX(-50%); display: flex; gap: 6px; align-items: center; font-size: .82rem; white-space: nowrap; }
.ev-cycle b { padding: 4px 10px; border-radius: 999px; background: var(--paper-2); font-weight: 600; }
.ev-cycle i { font-style: normal; color: var(--muted); }
.ev-check { position: absolute; bottom: 3.2%; left: 50%; transform: translateX(-50%); display: flex; gap: 8px; align-items: center; font-size: .78rem; white-space: nowrap; }
.ev-check i { font-style: normal; color: var(--muted); }
.ev-chip { position: absolute; font-size: .66rem; padding: 3px 8px; border-radius: 6px; background: var(--paper-2); white-space: nowrap; }
.ev-chip.c1 { left: 6%; top: 11%; } .ev-chip.c2 { right: 6%; top: 11%; } .ev-chip.c3 { left: 6%; bottom: 3%; } .ev-chip.c4 { right: 5%; bottom: 3%; }
.ev-file { position: absolute; font: .5rem/1 var(--mono); padding: 3px 6px; border-radius: 4px; background: var(--white); box-shadow: 0 0 0 1px var(--line-2); white-space: nowrap; }
.ev-file.f1 { left: 4%; top: 13%; } .ev-file.f2 { right: 4%; top: 13%; } .ev-file.f3 { left: 50%; transform: translateX(-50%); bottom: 4%; }
.ev-nest[data-zoom-level="0"] .ev-prompt, .ev-nest[data-zoom-level="1"] .ev-context, .ev-nest[data-zoom-level="2"] .ev-harness, .ev-nest[data-zoom-level="3"] .ev-loop { border-color: var(--text); background: rgba(255, 216, 77, .1); box-shadow: 0 0 0 3px rgba(255, 216, 77, .35); }
.ev-nest[data-zoom-level="0"] .ev-prompt > .ev-lab, .ev-nest[data-zoom-level="1"] .ev-context > .ev-lab, .ev-nest[data-zoom-level="2"] .ev-harness > .ev-lab, .ev-nest[data-zoom-level="3"] .ev-loop > .ev-lab { background: var(--mark); color: var(--ink); }
.ev-nest[data-zoom-level="0"] .ev-context, .ev-nest[data-zoom-level="0"] .ev-harness, .ev-nest[data-zoom-level="1"] .ev-harness { background: transparent; }

/* ===== 5 · RSI ===== */
.rs { display: grid; grid-template-columns: minmax(300px, 1fr) minmax(320px, 1.05fr); grid-template-areas: "copy fig" "quiz fig" "src fig"; column-gap: clamp(28px, 4vw, 64px); align-items: start; }
.rs-copy { grid-area: copy; }
.rs-pick { margin-top: 22px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.rs-pick button { text-align: left; padding: 12px 14px; border-radius: 14px; box-shadow: inset 0 0 0 1px var(--line-ink-2); transition: box-shadow .25s, background-color .25s; }
.rs-pick small { display: block; font-size: .74rem; color: var(--on-ink-muted); }
.rs-pick b { font-size: 1.15rem; }
.rs-pick button[aria-pressed="true"] { box-shadow: inset 0 0 0 2px var(--mark); background: rgba(255, 216, 77, .07); }
.rs-pick button[aria-pressed="true"] b { color: var(--mark); }
.rs-detail { margin-top: 16px; min-height: 7.6em; }
.rs-detail p { margin-top: 8px; color: var(--on-ink-2); }
.rs-path { display: flex; flex-wrap: wrap; gap: 4px 8px; align-items: center; color: var(--on-ink) !important; font-weight: 600; }
.rs-path i { font-style: normal; color: var(--mark); font-weight: 400; }
.rs-fig { grid-area: fig; }
.rs-fig { align-self: center; }
.rs-fig svg { width: 100%; max-height: calc(100dvh - var(--top) - var(--bottom) - 40px); margin: 0 auto; overflow: visible; }
.rs-ring circle { fill: none; stroke: rgba(241, 239, 233, .22); stroke-width: 1.4; transition: stroke .4s, stroke-width .4s; }
.rs-ring.on circle { stroke: var(--mark); stroke-width: 2.4; }
.rs-spiral { fill: none; stroke: url(#rs-fade); stroke-width: 1.5; stroke-dasharray: 3 8; opacity: .45; transition: opacity .4s, stroke-width .4s; }
.rs-ring.on .rs-spiral { opacity: 1; stroke-width: 2.6; }
.rs-w { fill: var(--on-ink-muted); font-size: 13px; font-family: var(--sans); paint-order: stroke; stroke: var(--ink); stroke-width: 7px; transition: fill .3s; }
.rs-ring.on .rs-w { fill: var(--on-ink); }
.rs-q { fill: var(--mark); font-size: 34px; font-weight: 700; font-family: var(--display); }
.rs-dot { fill: var(--mark); filter: drop-shadow(0 0 6px rgba(255, 216, 77, .9)); }
.rs-quiz { grid-area: quiz; margin-top: 10px; }
.rs-quiz-h { font-size: .86rem; font-weight: 500; color: var(--on-ink-muted); margin-bottom: 10px; }
.rs-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
.rs-card { position: relative; min-height: 86px; padding: 12px 14px; border-radius: 16px; text-align: left; background: var(--ink-2); box-shadow: inset 0 0 0 1px var(--line-ink); overflow: hidden; transition: background-color .3s; }
.rs-card:hover { background: var(--ink-3); }
.rs-cq { display: block; font-size: .92rem; line-height: 1.5; transition: opacity .3s, transform .4s var(--ease); }
.rs-ca { position: absolute; inset: 0; padding: 10px 14px; display: flex; flex-direction: column; gap: 4px; font-size: .84rem; line-height: 1.5; color: var(--on-ink-2); opacity: 0; transform: translateY(12px); transition: opacity .35s, transform .45s var(--ease); }
.rs-ca b { font-size: 1.1rem; color: var(--on-ink); }
.rs-card[aria-expanded="true"] .rs-cq { opacity: 0; transform: translateY(-12px); }
.rs-card[aria-expanded="true"] .rs-ca { opacity: 1; transform: none; }
.rs-card[data-quiz="2"][aria-expanded="true"] { background: rgba(228, 138, 27, .16); }
.rs-card[data-quiz="2"] .rs-ca b { color: #ffb347; }
.rs-card[data-quiz="3"][aria-expanded="true"] { background: rgba(223, 71, 71, .14); }
.rs-card[data-quiz="3"] .rs-ca b { color: #ff8a8a; }
.rs .src { grid-area: src; }

/* ===== 6 · 六步 ===== */
.sx { display: flex; flex-direction: column; min-height: 100%; }
.sx-top { display: flex; justify-content: space-between; align-items: flex-end; gap: 20px; }
.sx-ruler { position: relative; display: grid; grid-template-columns: repeat(6, 1fr); margin-top: 22px; --p: 0; }
.sx-ruler::before, .sx-ruler::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px; background: var(--line); }
.sx-ruler::after { right: auto; width: calc((var(--p) + 1) / 6 * 100%); background: var(--text); transition: width .6s var(--ease); }
.sx-ruler button { width: 100%; display: flex; flex-direction: column; align-items: flex-start; gap: 2px; padding: 4px 0 12px; text-align: left; color: var(--faint); transition: color .3s; }
.sx-ruler b { font-family: var(--display); font-size: clamp(1.6rem, 2.6vw, 2.6rem); font-weight: 650; letter-spacing: -.03em; line-height: 1; }
.sx-ruler span { font-size: .9rem; font-weight: 600; }
.sx-ruler button:hover { color: var(--muted); }
.sx-ruler button[aria-pressed="true"] { color: var(--text); }
.sx-ruler button[aria-pressed="true"] b { background: linear-gradient(transparent 58%, var(--mark) 58%, var(--mark) 92%, transparent 92%); }
.sx-body { margin-top: 22px; display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(280px, .9fr); gap: clamp(20px, 3vw, 40px); flex: 1; }
.sx-bench { position: relative; min-height: 360px; border-radius: 24px; background: var(--white); box-shadow: 0 0 0 1px var(--line), 0 30px 60px -40px rgba(0, 0, 0, .4); overflow: hidden; }
.sx-bench > * { position: absolute; transition: opacity .55s var(--ease), transform .7s var(--ease); }
.sx-goal { left: 8%; right: 8%; top: 50%; transform: translateY(-50%); font-family: var(--display); font-size: clamp(1.3rem, 2vw, 2rem); line-height: 1.35; letter-spacing: -.015em; font-weight: 600; }
.sx-goal span { display: block; font: 500 .72rem/1 var(--mono); letter-spacing: .08em; color: var(--muted); margin-bottom: 10px; }
.sx-bench:not([data-step="0"]) .sx-goal { top: 18px; transform: none; font-size: .9rem; left: 22px; right: 22px; font-family: var(--sans); font-weight: 500; color: var(--muted); }
.sx-bench:not([data-step="0"]) .sx-goal span { display: inline; margin: 0 8px 0 0; }
.sx-mats { left: 22px; right: 22px; top: 62px; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.sx-mat { display: flex; flex-direction: column; gap: 4px; padding: 14px 16px; border-radius: 14px; background: var(--paper); font-size: 1.02rem; font-weight: 600; }
.sx-mat small { font: 500 .68rem/1 var(--mono); color: var(--muted); letter-spacing: .06em; }
.sx-mat svg { width: 70px; fill: var(--mark); stroke: var(--text); stroke-width: .8; }
.sx-code { left: 22px; right: 22px; top: 62px; bottom: 22px; border-radius: 14px; background: #16161a; color: #e9e7e1; overflow: hidden; }
.sx-tabs { display: flex; gap: 2px; padding: 8px 8px 0; font: .74rem/1 var(--mono); }
.sx-tabs span { padding: 7px 12px; border-radius: 8px 8px 0 0; color: #8d8a82; }
.sx-tabs span.on { background: #222228; color: #fff; }
.sx-code pre { margin: 0; padding: 16px 18px; background: #222228; font: .82rem/1.75 var(--mono); white-space: pre; overflow: auto; height: 100%; }
.sx-code .c { color: #8d8a82; }
.sx-page { left: 22px; right: 22px; top: 58px; bottom: 18px; display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(170px, .8fr); gap: 16px; align-items: start; }
.sx-pagein { padding: 12px 14px 14px; color: #111; }
.sx-pagein .mean output { font-size: 1.6rem; }
.sx-pagein .mean-bars { height: 104px; }
.sx-pagein .mean-eq { font-size: .7rem; }
.sx-pagein .mean-range { font-size: .74rem; }
.sx-bench[data-step="3"] .sx-pagein .mean { position: relative; }
.sx-bench[data-step="3"] .sx-pagein .mean-range { position: absolute; left: 4%; right: 4%; top: 62px; padding: 6px 10px; background: #fff; border-radius: 10px; box-shadow: 0 0 0 2px var(--bad), 0 8px 18px rgba(0, 0, 0, .2); }
.sx-checks { display: grid; gap: 10px; font-size: .9rem; padding-top: 10px; }
.sx-bench[data-step="3"] .sx-checks .s4, .sx-bench:not([data-step="3"]) .sx-checks .s3 { display: none; }
.sx-feedback { right: 22px; top: 54px; max-width: 46%; padding: 12px 16px; border-radius: 16px 16px 4px 16px; background: var(--ink); color: var(--on-ink); font-size: .9rem; line-height: 1.55; z-index: 2; box-shadow: 0 16px 30px -12px rgba(0, 0, 0, .4); }
.sx-feedback span { display: block; font-size: .7rem; color: var(--mark); letter-spacing: .06em; }
.sx-deliver { left: 22px; right: 22px; top: 64px; display: grid; gap: 18px; }
.sx-files { display: flex; gap: 10px; flex-wrap: wrap; }
.sx-files span { font: .86rem/1 var(--mono); padding: 14px 16px; border-radius: 12px; background: var(--paper); box-shadow: inset 0 -3px 0 var(--mark); }
.sx-deliver ul { display: grid; gap: 10px; font-size: .95rem; }
/* which parts belong to which step */
.sx-bench .sx-mats, .sx-bench .sx-code, .sx-bench .sx-page, .sx-bench .sx-feedback, .sx-bench .sx-deliver { opacity: 0; transform: translateY(16px); pointer-events: none; }
.sx-bench[data-step="1"] .sx-mats, .sx-bench[data-step="2"] .sx-code, .sx-bench[data-step="3"] .sx-page, .sx-bench[data-step="4"] .sx-page, .sx-bench[data-step="4"] .sx-feedback, .sx-bench[data-step="5"] .sx-deliver { opacity: 1; transform: none; pointer-events: auto; }
.sx-bench[data-step="4"] .sx-page { top: 120px; }
.sx-lanes { display: grid; gap: 14px; align-content: start; }
.sx-lane { padding: 18px 20px; border-radius: 20px; background: var(--paper-2); }
.sx-lane.you { background: var(--ink); color: var(--on-ink); }
.sx-who { font-size: .76rem; letter-spacing: .06em; color: var(--muted); margin-bottom: 4px; }
.sx-lane.you .sx-who { color: var(--mark); }
.sx-lane p:not(.sx-who) { margin-top: 6px; font-size: .95rem; }
.sx-lane.you p:not(.sx-who) { color: var(--on-ink-2); }
.sx-ex { color: var(--muted); font-size: .88rem !important; }

/* ===== 7 · 作品 ===== */
.wk { display: flex; flex-direction: column; min-height: 100%; }
.wk-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 20px; }
.wk-back { color: var(--on-ink); opacity: 0; pointer-events: none; transition: opacity .3s; }
.wk:not([data-focus="-1"]) .wk-back { opacity: 1; pointer-events: auto; }
.wk-stage { position: relative; flex: 1; min-height: 380px; margin-top: 20px; }
.wk-shot { --x: 0%; --y: 0%; --w: 40%; --r: 0deg; position: absolute; left: var(--x); top: var(--y); width: var(--w); border-radius: 14px; overflow: hidden; transform: rotate(var(--r)); box-shadow: 0 30px 70px -24px rgba(0, 0, 0, .8), 0 0 0 1px rgba(255, 255, 255, .08); transition: left .9s var(--ease), top .9s var(--ease), width .9s var(--ease), transform .9s var(--ease), opacity .5s, box-shadow .3s; background: var(--ink-3); }
.wk-shot img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.wk-cap { position: absolute; left: 0; right: 0; bottom: 0; padding: 26px 14px 10px; background: linear-gradient(transparent, rgba(0, 0, 0, .72)); color: #fff; font-size: .92rem; text-align: left; transition: opacity .3s; }
.wk .s0 { --x: 1%; --y: 4%; --w: 44%; --r: -2.4deg; z-index: 2; }
.wk .s1 { --x: 47%; --y: 0%; --w: 39%; --r: 1.8deg; z-index: 1; }
.wk .s2 { --x: 20%; --y: 45%; --w: 39%; --r: -1.2deg; z-index: 3; }
.wk .s3 { --x: 58%; --y: 41%; --w: 38%; --r: 2.6deg; z-index: 2; }
.wk[data-focus="-1"] .wk-shot:hover { transform: rotate(0deg) scale(1.03); z-index: 5; box-shadow: 0 40px 80px -24px rgba(0, 0, 0, .9), 0 0 0 2px var(--mark); }
.wk:not([data-focus="-1"]) .wk-shot { --x: calc(64% + var(--k, 0) * 12%); --y: 82%; --w: 11%; --r: 0deg; z-index: 4; opacity: .55; }
.wk:not([data-focus="-1"]) .wk-shot:hover { opacity: 1; }
.wk:not([data-focus="-1"]) .wk-shot .wk-cap { opacity: 0; }
.wk:not([data-focus="-1"]) .wk-shot.on { --x: 0%; --y: 0%; --w: 61%; --r: 0deg; z-index: 6; opacity: 1; }
.wk-info { position: absolute; left: 64%; right: 0; top: 0; bottom: 22%; display: flex; flex-direction: column; gap: 12px; opacity: 0; transform: translateY(12px); transition: opacity .5s .25s, transform .7s .25s var(--ease); pointer-events: none; }
.wk:not([data-focus="-1"]) .wk-info { opacity: 1; transform: none; pointer-events: auto; }
.wk-n { font: .78rem/1 var(--mono); color: var(--on-ink-muted); }
.wk-title { font-family: var(--display); font-size: clamp(1.8rem, 2.8vw, 2.9rem); line-height: 1.05; letter-spacing: -.03em; }
.wk-desc { color: var(--on-ink-2); }
.wk-try { font-size: .92rem; padding: 10px 14px; border-radius: 12px; background: rgba(255, 216, 77, .08); }
.wk-try span { display: block; font-size: .72rem; color: var(--mark); letter-spacing: .06em; }
.wk-links { display: flex; gap: 18px; flex-wrap: wrap; }
.wk-by { font-size: .78rem; color: var(--on-ink-muted); margin-top: auto; }

/* ===== 8–9 · 视频 ===== */
.page.clear { background: transparent; }
.vd { position: relative; display: grid; grid-template-columns: minmax(220px, .5fr) minmax(0, 1.5fr); grid-template-rows: 1fr auto; gap: 18px clamp(24px, 3.5vw, 56px); min-height: 100%; align-items: end; }
.vd-title { align-self: start; position: relative; z-index: 1; transition: opacity .6s; }
.vd-title .d { margin-top: 14px; font-size: clamp(2.4rem, 4.6vw, 5rem); }
.vd-player { grid-row: 1 / 3; grid-column: 2; align-self: center; position: relative; z-index: 1; }
.vd-credit { grid-column: 1; font-size: .84rem; color: var(--on-ink-2); display: grid; gap: 4px; justify-items: start; position: relative; z-index: 1; transition: opacity .6s; }
.vd-credit span { font: .74rem/1.4 var(--mono); color: var(--on-ink-muted); }
.page.watching .vd-title, .page.watching .vd-credit { opacity: .2; }
.vd-agi { grid-template-columns: minmax(0, 1.5fr) minmax(220px, .5fr); }
.vd-agi .vd-title { grid-column: 2; }
.vd-agi .vd-player { grid-column: 1; }
.vd-agi .vd-credit { grid-column: 2; }
.vd-agi .vd-title .d { font-size: clamp(2.6rem, 5.2vw, 5.6rem); }
.vd-glow { position: absolute; left: 0; width: 72%; top: 5%; bottom: 5%; background: radial-gradient(closest-side, var(--amb, #7a3fd0), transparent); opacity: .5; filter: blur(30px); pointer-events: none; transition: opacity 1s; }
.page.watching .vd-glow { opacity: .75; }
.vp { position: relative; aspect-ratio: 16 / 9; border-radius: 18px; overflow: hidden; background: #000; box-shadow: 0 50px 100px -40px rgba(0, 0, 0, .9), 0 0 0 1px rgba(255, 255, 255, .08); }
.vp video { width: 100%; height: 100%; object-fit: contain; background: #000; }
.vp-big { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); display: flex; align-items: center; gap: 14px; padding: 12px 26px 12px 14px; border-radius: 999px; background: var(--mark); color: var(--ink); font-size: 1.05rem; box-shadow: 0 16px 40px rgba(0, 0, 0, .5); transition: transform .3s var(--spring), opacity .3s; }
.vp-big:hover { transform: translate(-50%, -50%) scale(1.06); }
.vp-tri { width: 40px; height: 40px; border-radius: 50%; background: var(--ink); position: relative; }
.vp-tri::after { content: ""; position: absolute; left: 15px; top: 12px; border-left: 14px solid var(--mark); border-top: 8px solid transparent; border-bottom: 8px solid transparent; }
.vp.playing .vp-big { opacity: 0; pointer-events: none; }
.vp-bar { position: absolute; left: 0; right: 0; bottom: 0; display: flex; align-items: center; gap: 10px; padding: 26px 14px 10px; background: linear-gradient(transparent, rgba(0, 0, 0, .75)); color: #fff; opacity: 0; transition: opacity .3s; }
.vp:hover .vp-bar, .vp:focus-within .vp-bar, .vp:not(.playing) .vp-bar { opacity: 1; }
.vp-btn { height: 32px; padding: 0 12px; border-radius: 999px; font-size: .8rem; background: rgba(255, 255, 255, .14); white-space: nowrap; }
.vp-btn:hover { background: rgba(255, 255, 255, .26); }
.vp-bar input { flex: 1; color: #fff; min-width: 60px; }
.vp-time { font: .74rem/1 var(--mono); white-space: nowrap; opacity: .85; }
.vp-msg { position: absolute; left: 14px; top: 12px; font-size: .82rem; color: #fff; text-shadow: 0 1px 4px #000; }
.vp.cinema { position: fixed; inset: 0; z-index: 200; border-radius: 0; aspect-ratio: auto; }

/* ===== 10 · 三个开关 ===== */
.hu { display: flex; flex-direction: column; min-height: 100%; }
.hu-grid { margin-top: clamp(18px, 3vh, 30px); display: grid; grid-template-columns: minmax(240px, .78fr) minmax(260px, .95fr) minmax(300px, 1.15fr); gap: clamp(16px, 2.4vw, 32px); align-items: start; }
.hu-levers { display: grid; gap: 10px; }
.hu-lever { display: grid; grid-template-columns: auto 1fr; grid-template-areas: "sw name" "sw hint"; column-gap: 14px; align-items: center; padding: 18px 18px; border-radius: 16px; text-align: left; background: var(--white); box-shadow: 0 0 0 1px var(--line); transition: box-shadow .25s, transform .25s var(--ease); }
.hu-lever:hover { transform: translateY(-1px); box-shadow: 0 0 0 1px var(--line-2), 0 10px 20px -14px rgba(0, 0, 0, .3); }
.hu-sw { grid-area: sw; width: 40px; height: 24px; border-radius: 24px; background: var(--paper-3); position: relative; transition: background-color .25s; }
.hu-sw::after { content: ""; position: absolute; left: 3px; top: 3px; width: 18px; height: 18px; border-radius: 50%; background: #fff; box-shadow: 0 1px 3px rgba(0, 0, 0, .25); transition: transform .3s var(--spring); }
.hu-lever[aria-pressed="true"] .hu-sw { background: var(--ink); }
.hu-lever[aria-pressed="true"] .hu-sw::after { transform: translateX(16px); background: var(--mark); }
.hu-lever b { grid-area: name; font-size: .98rem; }
.hu-lever small { grid-area: hint; font-size: .8rem; color: var(--muted); line-height: 1.45; }
.hu-prompt .cx-composer { font-size: .92rem; }
.hu-prompt .cx-text { line-height: 1.7; }
.hu-add { transition: background-color .4s; }
.hu-add.on { background: var(--mark-soft); border-radius: 3px; animation: add-in .5s var(--ease); }
@keyframes add-in { from { background: var(--mark); } }
.hu-meter { margin-top: 14px; display: flex; align-items: baseline; justify-content: space-between; font-size: .84rem; color: var(--muted); }
.hu-meter b { font-family: var(--display); font-size: 2.2rem; color: var(--text); letter-spacing: -.03em; }
.hu-result .bw-body { height: 360px; overflow: hidden; }
.hu-site { height: 100%; padding: 16px 18px; color: #111; }
.hu-generic { text-align: center; padding-top: 6px; }
.hu-logo { font-weight: 700; font-size: .8rem; text-align: left; color: #555; }
.hu-hero { margin: 26px 0 22px; font-size: 1.5rem; font-weight: 700; letter-spacing: -.02em; color: #222; }
.hu-boxes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.hu-boxes span { height: 74px; border-radius: 10px; background: #eceef3; display: grid; place-items: center; font-size: .8rem; color: #777; }
.hu-result[data-g="0"] .hu-real, .hu-result[data-g="1"] .hu-generic { display: none; }
.hu-h { font-weight: 700; font-size: .95rem; margin-bottom: 8px; }
.hu-formula { margin-top: 10px; font: .72rem/1.5 var(--mono); display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.hu-result[data-m="1"] .hu-formula.bad, .hu-result[data-m="0"] .hu-formula.good { display: none; }
.hu-result[data-m="0"] .mean-top { visibility: hidden; }
.hu-chart .mean output { font-size: 1.5rem; }
.hu-chart .mean-eq { font-size: .66rem; }
.hu-chart .mean-range { font-size: .72rem; }
.hu-result[data-f="0"] .hu-chart .mean-bars { height: 58px; }
.hu-result[data-f="0"] .hu-chart .mean { position: relative; font-size: .8em; }
.hu-result[data-f="0"] .hu-chart .mean-range { position: absolute; left: 0; right: 30%; top: 40px; background: #fff; padding: 4px 8px; border-radius: 8px; box-shadow: 0 4px 12px rgba(0, 0, 0, .2); }
.hu-result[data-f="1"] .hu-chart .mean-bars { height: 150px; }
.hu-says { margin-top: 12px; font-size: .92rem; font-weight: 600; min-height: 3em; }
.hu-take { margin-top: auto; padding-top: 20px; font-size: 1.05rem; color: var(--text-2); }

/* ===== 11 · 项目起点 ===== */
.ps { display: grid; grid-template-columns: minmax(300px, .92fr) minmax(0, 1.08fr); gap: clamp(28px, 4vw, 60px); align-items: start; }
.ps-folder { margin-top: 28px; position: relative; }
.ps-tab { display: inline-flex; align-items: center; gap: 8px; padding: 10px 18px 8px; border-radius: 14px 14px 0 0; background: #fff8de; box-shadow: 0 0 0 1px rgba(160, 130, 40, .25); font: 600 .95rem/1 var(--mono); position: relative; z-index: 1; clip-path: inset(-2px -2px 0 -2px); }
.ps-spec { margin-top: -1px; padding: 18px 22px 20px; border-radius: 0 18px 18px 18px; background: #fff8de; box-shadow: 0 0 0 1px rgba(160, 130, 40, .25), 0 26px 50px -30px rgba(120, 90, 0, .45); display: grid; gap: 14px; }
.ps-spec div { display: grid; grid-template-columns: 5.5em 1fr; gap: 12px; }
.ps-spec dt { font: 600 .74rem/1.9 var(--mono); color: #8a6d12; letter-spacing: .04em; }
.ps-spec dd { font-size: .98rem; display: grid; gap: 6px; }
.ps-right { display: grid; gap: 18px; }
.ps-target { padding: 18px 20px 20px; border-radius: 22px; background: var(--white); box-shadow: 0 0 0 1px var(--line), 0 24px 50px -36px rgba(0, 0, 0, .4); }
.ps-target-h { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; font-size: .86rem; color: var(--muted); margin-bottom: 12px; }
.ps-width button { min-height: 30px; font-size: .8rem; }
.ps-frame { margin: 0 auto; transition: max-width .6s var(--ease); max-width: 100%; }
.ps-frame[data-w="phone"] { max-width: 280px; }
.ps-frame[data-w="phone"] .mean output { font-size: 2rem; }
.ps-next { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }

/* ===== narrow screens ===== */
@media (max-width: 1100px) {
  .ad-lanes { grid-template-columns: 1fr; }
  .ad-chat { display: none; }
  .hu-grid { grid-template-columns: 1fr 1fr; }
  .hu-result { grid-column: 1 / -1; }
}
@media (max-width: 860px) {
  .al, .hn, .ev, .rs, .ps { grid-template-columns: 1fr; grid-template-areas: none; }
  .al > *, .hn > *, .rs > * { grid-area: auto !important; }
  .al-detail { margin-top: 0; }
  .sx-body { grid-template-columns: 1fr; }
  .rs-cards { grid-template-columns: 1fr 1fr; }
  .vd, .vd-agi { grid-template-columns: 1fr; grid-template-rows: none; }
  .vd > *, .vd-agi > * { grid-column: 1 !important; grid-row: auto !important; }
  .wk-stage { min-height: 0; flex: none; }
  .wk-shot { position: relative; left: auto !important; top: auto !important; width: 100% !important; transform: none !important; margin-bottom: 12px; }
  .wk:not([data-focus="-1"]) .wk-shot:not(.on) { display: none; }
  .wk-info { position: relative; left: auto; inset: auto; margin-top: 10px; }
  .wk[data-focus="-1"] .wk-info { display: none; }
}
@media (max-width: 760px) {
  .ad-work { grid-template-columns: 1fr; }
  .ad-log { min-height: 0; }
  .al-map { --name: 104px; }
  .al-stations { font-size: .66rem; }
  .al-name b { font-size: .95rem; }
  .ev-view { aspect-ratio: .95; }
  .hu-grid { grid-template-columns: 1fr; }
  .sx-ruler span { font-size: .7rem; }
  .sx-bench { min-height: 420px; }
  .sx-page { grid-template-columns: 1fr; }
  .sx-checks { display: none; }
  .sx-feedback { max-width: 80%; }
  .sx-mats { grid-template-columns: 1fr; }
  .rs-pick { grid-template-columns: 1fr; }
  .rs-cards { grid-template-columns: 1fr; }
}
/* Content additions reuse the module's type, paper/ink and yellow accents. */
.future-page{width:100%;max-width:1250px;margin:auto}
.future-columns{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.8fr);gap:60px;margin-top:34px;align-items:start}
.future-detail,.future-answer{margin-top:24px}
.future-detail>p,.future-answer>p{margin-top:18px;max-width:38em}
.future-full{font-size:.83rem;color:var(--muted)}
.future-main{font-size:clamp(1.2rem,1.8vw,1.65rem);line-height:1.7}
.future-columns aside{border-left:1px solid var(--line);padding-left:34px}
.future-columns aside h2{font-size:1.25rem;line-height:1.55;margin-bottom:20px}
.future-columns aside p{margin:18px 0;line-height:1.8}
.future-columns aside ol{padding-left:20px;margin:15px 0 28px;line-height:1.9}
.future-columns aside li{margin:15px 0}
.future-questions{display:flex;flex-wrap:wrap;gap:10px}
.future-questions button{font:inherit;padding:12px 18px;border:1px solid var(--line);background:transparent;color:inherit;border-radius:8px;cursor:pointer}
.future-questions button[aria-pressed=true]{background:var(--mark);color:var(--ink);border-color:var(--mark)}
.ps-spec button.tick{display:block;width:100%;text-align:left;font:inherit;border:0;background:transparent;cursor:pointer;padding-top:4px;padding-bottom:4px;color:inherit}
@media(max-width:900px){.future-columns{grid-template-columns:1fr;gap:30px;margin-top:24px}.future-columns aside{border-left:0;border-top:1px solid var(--line);padding:24px 0 0}.future-main{font-size:1.25rem}}