/* guide.css — 首页导览的五张卡、卡上的动图，和「建设中」的字符动画（v0.20，2026-10-21 起，主会话维护）。
   Leon 10-21：「这三层也要做得更可视化一些，可以用工作坊课件里的一些动效？」「暂时没有的就给一个 字符粒子动画告诉用户建设中」。
   动图照课件 /course/ai-shixun/ 的画法：流动的虚线（.g-dsh）、沿线走的小圆点（.g-mv、.g-mvl，CSS offset-path）、
   深色圆里不停在换的字符（[data-noise]，guide.js 换字）、盖下去的印章（.g-stamp）。片段在 partials/fig-guide-*.html。
   图滚进屏幕才动（guide.js 加 .is-on）；带 data-cycle 的图按周期重放（guide.js 每轮加 .go，结束前 650ms 加 .out 淡出）。
   「建设中」（[data-building]）的画布由 building.js 画：字符聚成「建设中」三个字，停一会儿又散开。 */

/* 卡片 */
.guide-grid { display: grid; gap: 20px; }
.guide-grid.is-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.guide-grid.is-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.guide-card { display: flex; flex-direction: column; min-width: 0; padding: 14px 14px 26px; background: var(--sheet); border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--sheet-shadow); transition: box-shadow .3s var(--ease); }
.guide-card:hover { box-shadow: var(--sheet-shadow-lift); }
.guide-card .gfig { margin-bottom: 22px; }
.guide-k { margin: 0 12px; font-family: var(--mono); font-size: 12px; letter-spacing: .04em; color: var(--cinnabar-text); }
.guide-card h3 { margin: 6px 12px 0; font-size: clamp(20px, 2vw, 24px); line-height: 1.35; }
.guide-get { margin: 10px 12px 0; color: var(--ink-soft); font-size: 15.5px; line-height: 1.75; }
.guide-chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 14px 12px 0; padding: 0; list-style: none; }
.guide-chips li { padding: 2px 10px; font-size: 12.5px; line-height: 1.6; color: var(--ink-soft); white-space: nowrap; background: var(--sheet); border: 1px solid var(--line); border-radius: 999px; }
.guide-card > .text-link { align-self: flex-start; margin: auto 12px 0; padding-top: 20px; }
@media (max-width: 1023px) { .guide-grid.is-3 { grid-template-columns: minmax(0, 1fr); max-width: 560px; margin-inline: auto; } }
@media (max-width: 860px) { .guide-grid.is-2 { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 520px) { .guide-card { padding: 10px 10px 22px; } .guide-k, .guide-card h3, .guide-get, .guide-chips { margin-left: 8px; margin-right: 8px; } .guide-card > .text-link { margin-left: 8px; } }

/* 动图 */
.gfig { position: relative; overflow: hidden; background: var(--fig-paper); border: 1px solid var(--edge-soft); border-radius: var(--r-xl); }
.gfig svg { display: block; width: 100%; height: auto; }
.gfig text { font-family: var(--sans); }
.gfig .g-noise { font-family: var(--mono); fill: #f1b496; fill-opacity: .5; letter-spacing: .12em; }
.g-night { fill: var(--night); }
.g-light { fill: var(--night-text); }
.g-peach { fill: #f1b496; }
.g-cin { fill: var(--cinnabar); }
text.g-cin { fill: var(--cinnabar-text); }   /* 字用朱字色：夜里朱块色当字只有 3.2:1 */
.g-ink { fill: var(--ink); }
.g-mut { fill: var(--muted); }
.g-pill { fill: var(--sheet); stroke: rgb(var(--ink-rgb) / .18); stroke-width: 1.4; }
.g-card { fill: var(--sheet); stroke: rgb(var(--accent-rgb) / .5); stroke-width: 1.4; }
.g-bar { fill: rgb(var(--ink-rgb) / .14); }
.g-dept rect { fill: rgb(255 255 255 / .6); stroke: rgb(var(--ink-rgb) / .2); stroke-dasharray: 3 4; }
.g-tie line { stroke: rgb(var(--ink-rgb) / .22); stroke-width: 1.2; }
.g-person circle { fill: var(--sheet-hi); stroke: rgb(var(--ink-rgb) / .55); stroke-width: 1.4; }
.g-lc { fill: none; stroke: var(--cinnabar); stroke-opacity: .5; stroke-width: 1.8; }
.g-lk { fill: none; stroke: var(--ink); stroke-opacity: .55; stroke-width: 1.5; }
.g-dsh { stroke-dasharray: 6 4; animation: g-dsh 1.6s linear infinite; }
.g-dsh.g-lslow { fill: none; stroke: rgb(var(--ink-rgb) / .3); stroke-width: 1.3; stroke-dasharray: 1.5 4.5; }
@keyframes g-dsh { to { stroke-dashoffset: -30; } }
.g-mv, .g-mvl { opacity: 0; fill: var(--cinnabar); offset-rotate: 0deg; }
.g-mvl { animation: g-hopl var(--d, 3.6s) linear var(--t, 0s) infinite; }
.g-mvl.is-slow { fill: rgb(var(--ink-rgb) / .45); animation-name: g-hops; }
@keyframes g-hopl { 0% { offset-distance: 0%; opacity: 0; } 4% { opacity: 1; } 26% { offset-distance: 100%; opacity: 1; } 30%, 100% { offset-distance: 100%; opacity: 0; } }
@keyframes g-hops { 0% { offset-distance: 0%; opacity: 0; } 5% { opacity: 1; } 80% { offset-distance: 100%; opacity: 1; } 86%, 100% { offset-distance: 100%; opacity: 0; } }
.gfig.go .g-mv { animation: g-hop var(--dur, 1.4s) linear var(--t, 0s) both; }
@keyframes g-hop { 0% { offset-distance: 0%; opacity: 0; } 10% { opacity: 1; } 90% { offset-distance: 100%; opacity: 1; } 100% { offset-distance: 100%; opacity: 0; } }
.g-chk, .g-pu, .g-stamp, .g-sp, .g-orb { transform-box: fill-box; transform-origin: 50% 50%; }
.g-chk { opacity: 0; }
.g-chk path { fill: none; stroke: var(--on-accent); stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }
.gfig.go .g-chk { animation: g-chk .5s cubic-bezier(.2, .8, .2, 1.3) var(--t, 0s) both; }
@keyframes g-chk { from { opacity: 0; transform: scale(.4); } to { opacity: 1; transform: scale(1); } }
.g-hit { opacity: 0; fill: none; stroke: var(--cinnabar); stroke-width: 2; }
.gfig.go .g-hit { animation: g-hit .9s ease-out var(--t, 0s) both; }
@keyframes g-hit { 0% { opacity: 0; } 25% { opacity: 1; } 100% { opacity: 0; } }
.gfig.go .g-pu { animation: g-pu .7s ease-in-out var(--t, 0s) both; }
@keyframes g-pu { 0%, 100% { transform: scale(1); } 45% { transform: scale(1.09); } }
.g-orb { fill: none; stroke: var(--cinnabar); stroke-opacity: .55; stroke-width: 1.6; stroke-dasharray: 1.5 6; stroke-linecap: round; animation: g-orb 10s linear infinite; }
@keyframes g-orb { to { transform: rotate(360deg); } }
.g-ix, .g-ixai { opacity: 0; }
.g-ixai { fill: none; stroke: var(--cinnabar); stroke-width: 1.6; }
.gfig.go .g-ix, .gfig.go .g-ixai { animation: g-ix 1.75s ease var(--t, 0s) both; }
.gfig.go .g-ix .g-mv { animation: g-hop 1.15s linear calc(var(--t, 0s) + .25s) both; }
@keyframes g-ix { 0% { opacity: 0; } 14% { opacity: 1; } 78% { opacity: 1; } 100% { opacity: 0; } }
.g-stamp { opacity: 0; }
.g-stamp rect { fill: rgb(255 255 255 / .94); stroke: var(--cinnabar); stroke-width: 2.2; }
.g-stamp text { fill: var(--cinnabar); }
.gfig.go .g-stamp { animation: g-stamp .5s cubic-bezier(.3, .7, .3, 1) var(--t, 0s) both; }
@keyframes g-stamp { 0% { opacity: 0; transform: scale(2.2); } 60% { opacity: 1; transform: scale(.94); } 100% { opacity: 1; transform: scale(1); } }
.g-gx { transform-box: fill-box; transform-origin: 0 50%; transform: scaleX(0); }
.gfig.go .g-gx { animation: g-gx .45s var(--ease) var(--t, 0s) both; }
@keyframes g-gx { from { transform: scaleX(0); } to { transform: scaleX(1); } }
.g-sp { animation: g-sp .55s cubic-bezier(.2, .8, .2, 1.25) var(--t, 0s) both; }
@keyframes g-sp { from { opacity: 0; transform: scale(.6); } }
.g-dyn { transition: opacity .25s; }
.gfig.out .g-dyn { opacity: 0; transition: opacity .55s; }
.gfig:not(.is-on) * { animation-play-state: paused !important; }
/* 高校实训：八块屏幕（guide.js 画） */
.g-scr .g-frame { fill: var(--sheet-hi); stroke: rgb(var(--ink-rgb) / .18); stroke-width: 1.2; transition: stroke .3s; }
.g-scr .g-dot { fill: rgb(var(--ink-rgb) / .18); }
.g-scr .g-cl { fill: rgb(var(--ink-rgb) / .16); transform-box: fill-box; transform-origin: 0 50%; transform: scaleX(0); transition: transform .5s var(--ease); }
.g-scr.is-typed .g-cl { transform: scaleX(1); }
.g-scr:not(.is-typed) .g-cl { transition: none; }
.g-scr .g-st { font-size: 12px; fill: var(--muted); }
.g-scr[data-st="r"] .g-st { fill: var(--ink); }
.g-scr[data-st="e"] .g-st { fill: var(--cinnabar); }
.g-scr[data-st="e"] .g-frame { stroke: rgb(var(--accent-rgb) / .55); }
.g-scr[data-st="ok"] .g-st { fill: var(--cinnabar); font-weight: 700; }
.g-scr[data-st="ok"] .g-frame { stroke: rgb(var(--accent-rgb) / .35); }
.g-seg { fill: var(--paper-tint); transition: fill .35s; }
.g-seg.is-done { fill: var(--cinnabar); }

/* AI 工具页那张（v0.22，fig-guide-ai-tools）：文件夹里的几行、实线箭头的尖、交回来的几件依次出来 */
.g-file { fill: rgb(var(--ink-rgb) / .06); }
.g-tip { fill: var(--ink); fill-opacity: .55; }
.g-pop { opacity: 0; transform-box: fill-box; transform-origin: 0 50%; }
.gfig.go .g-pop { animation: g-pop .45s cubic-bezier(.2, .8, .2, 1.2) var(--t, 0s) both; }
@keyframes g-pop { from { opacity: 0; transform: translateX(-8px) scale(.92); } to { opacity: 1; transform: none; } }
html:not(.js) .gfig .g-pop { opacity: 1; }

/* 建设中（building.js）：字符聚成「建设中」 */
.building { position: relative; min-height: 200px; overflow: hidden; color: var(--cinnabar); background: var(--sheet); border: 1px solid var(--edge-soft); border-radius: var(--r-xl); }
.building canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.building-note { position: absolute; left: 14px; bottom: 10px; margin: 0; font-family: var(--mono); font-size: 11px; letter-spacing: .06em; color: var(--muted); }

@media (prefers-reduced-motion: reduce) {
  .gfig * { animation: none !important; transition: none !important; }
  .gfig .g-mv, .gfig .g-mvl, .gfig .g-ixai { opacity: 0; }
  .gfig .g-chk, .gfig .g-stamp, .gfig .g-ix, .gfig .g-pop { opacity: 1; }
  .gfig .g-gx { transform: none; }
  .g-scr .g-cl { transform: none; }
}