/* Intentra 落地页：与后台和小程序同一套品牌笔画（门楣、两柱、街线、到店节点）。
   这里不引任何框架，只用细线网格 + 一次同源动画，页面上不出现任何数字读数。 */

:root {
  --brand: #d56843;
  --deep: #8a3a1d;
  --warm: #f2a582;
  --ink: #211917;
  --mute: #65716f;
  --info: #4f7186;
  --success: #267455;
  --warning: #a5670a;
  --line: rgba(33, 25, 23, 0.12);
  --line-soft: rgba(79, 113, 134, 0.12);
  --bg: #f6f8f7;
  --paper: #fff;
  --night: #182326;
  --sans: "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --gutter: clamp(18px, 4vw, 56px);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 16px/1.65 var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, p, ul, ol { margin: 0; }
ul, ol { list-style: none; padding: 0; }
a { color: inherit; text-decoration: none; }

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 20;
  padding: 10px 16px; background: var(--ink); color: #fff;
}
.skip:focus { left: 8px; top: 8px; }

.eyebrow {
  font: 500 11px/1 var(--mono);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--deep);
}
.eyebrow-sm { font-size: 10px; letter-spacing: 0.16em; }

/* ---------- 顶栏：一行细线格子 ---------- */
.nav {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: stretch;
  height: 52px;
  background: rgba(250, 247, 245, 0.86);
  backdrop-filter: saturate(1.4) blur(10px);
  border-block: 1px solid var(--line);
}
.nav-cell {
  display: inline-flex; align-items: center;
  padding: 0 20px;
  border-inline-start: 1px solid var(--line);
  font-size: 13.5px; color: var(--mute);
  transition: color .18s ease, background .18s ease;
}
.nav-cell:first-child { border-inline-start: 0; }
.nav-cell:hover { color: var(--ink); background: rgba(213, 104, 67, 0.07); }
.nav-mark { color: var(--brand); }
.nav-mark:hover { color: var(--deep); }
.nav-spacer { flex: 1 1 auto; }
.nav-enter { color: var(--ink); font-weight: 500; }
@media (max-width: 700px) {
  .nav-link { display: none; }
  .nav-cell { padding: 0 16px; }
}

/* 箭头穿过按钮：文字右移让位，箭头从左侧描到右侧 */
[data-arrow] { position: relative; overflow: hidden; padding-inline-end: 54px; }
[data-arrow] i {
  position: absolute; right: 19px; top: 50%; width: 18px; height: 1px;
  background: currentColor; transform: translateY(-50%) translateX(var(--tx, 0px));
  transition: transform .34s cubic-bezier(.2, .8, .2, 1);
}
[data-arrow] i::after {
  content: ""; position: absolute; right: -1px; top: -3px; width: 7px; height: 7px;
  border-top: 1px solid currentColor; border-right: 1px solid currentColor; transform: rotate(45deg);
}
[data-arrow]:hover i, [data-arrow]:focus-visible i { --tx: -6px; }

/* ---------- 首屏 ---------- */
.hero { min-height: 200vh; position: relative; }
.hero-pin {
  position: sticky; top: 0;
  display: flex; flex-direction: column; justify-content: center;
  min-height: 100vh;
  padding: 64px var(--gutter) 0;
  overflow: hidden;
}
.hero-grid {
  display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(260px, 0.65fr);
  gap: clamp(24px, 5vw, 72px); align-items: center;
  max-width: 1240px; margin: 0 auto; width: 100%;
}
.hero-copy h1 {
  font-size: clamp(38px, 6.4vw, 76px); line-height: 1.04; letter-spacing: -0.035em;
  font-weight: 600; margin: 18px 0 22px;
}
.hero-copy .lede { max-width: 40ch; color: var(--mute); font-size: clamp(15px, 1.5vw, 18px); text-wrap: balance; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }

.btn {
  display: inline-flex; align-items: center; min-height: 44px; padding: 0 22px;
  border-radius: 999px; font-size: 14.5px; font-weight: 500;
  transition: transform .18s ease, background .18s ease, border-color .18s ease;
}
.btn-solid { background: var(--brand); color: var(--ink); }
.btn-solid:hover { background: var(--warm); transform: translateY(-1px); }
.btn-line { border: 1px solid var(--line); color: var(--ink); }
.btn-line:hover { border-color: var(--brand); color: var(--deep); transform: translateY(-1px); }
:where(a, button):focus-visible { outline: 2px solid var(--deep); outline-offset: 3px; }

/* 街：门面上不写字，字只在被扫到时才浮出来 */
.hero-art { display: grid; gap: 18px; justify-items: center; }
.street { position: relative; padding: 8px 0; transform: translateY(calc(var(--p, 0) * -34px)); }
.lamp {
  position: absolute; left: -16px; top: calc(var(--p, 0) * 100%);
  width: 8px; height: 8px; margin-top: -4px; border-radius: 50%;
  background: var(--brand); box-shadow: 0 0 0 5px rgba(213, 104, 67, 0.16), 0 0 18px 6px rgba(242, 165, 130, 0.55);
  transition: top .12s linear;
}
.frames { display: grid; gap: 14px; }
.frame { position: relative; display: grid; justify-items: center; }
.frame svg { width: 100%; max-width: 148px; height: auto; overflow: visible; }
.frame .stroke {
  fill: none; stroke: var(--ink); stroke-width: 1.6; stroke-linecap: round;
  stroke-dasharray: 92; stroke-dashoffset: 0;
  animation: draw .7s ease both; animation-delay: calc(var(--i, 0) * 130ms);
  opacity: .68;
}
.frame:nth-child(1) { --i: 0; } .frame:nth-child(2) { --i: 1; } .frame:nth-child(3) { --i: 2; }
.frame:nth-child(4) { --i: 3; } .frame:nth-child(5) { --i: 4; }
@keyframes draw { from { stroke-dashoffset: 92; } to { stroke-dashoffset: 0; } }
/* 门面中心放的是品牌记号里那个"到店节点"，不是窗户：画成方块会被读成一台笔记本电脑。 */
.frame .pane {
  position: absolute; left: 50%; top: 47%; width: 13%; aspect-ratio: 1; transform: translate(-50%, -50%);
  border-radius: 50%; background: rgba(33, 25, 23, 0.16);
  transition: background .35s ease, box-shadow .35s ease;
}
.frame em {
  position: absolute; left: calc(100% + 10px); top: 50%; transform: translate(-6px, -50%);
  font: 500 11px/1 var(--mono); letter-spacing: .12em; color: var(--deep);
  opacity: 0; transition: opacity .3s ease, transform .3s ease; white-space: nowrap;
}
.frame.is-lit .pane { background: var(--warm); box-shadow: 0 0 22px 6px rgba(242, 165, 130, 0.6); }
.frame.is-lit .stroke { opacity: 1; stroke: var(--deep); }
.frame.is-lit em { opacity: 1; transform: translate(0, -50%); }
.frame:hover .pane { background: var(--warm); }
.hero-foot { max-width: 300px; font-size: 12px; line-height: 1.6; color: var(--mute); text-align: center; }

/* 尾签：一条自动轮播，悬停即停 */
.hero-ticker {
  position: relative; max-width: 1240px; width: 100%; margin: clamp(28px, 6vh, 64px) auto 0;
  display: grid; grid-template-columns: auto 1fr; align-items: center; gap: 16px;
  border-top: 1px solid var(--line); padding-top: 14px;
}
.ticker-list { position: relative; height: 26px; grid-column: 2; }
.ticker-list li {
  position: absolute; inset: 0; font-size: 13.5px; color: var(--mute);
  opacity: 0; transform: translateY(6px); transition: opacity .2s ease, transform .2s ease;
}
.ticker-list li.is-on { opacity: 1; transform: none; color: var(--ink); transition: opacity .45s ease .18s, transform .45s ease .18s; }
.ticker-bar { position: absolute; left: 0; right: 0; bottom: -15px; height: 1px; background: var(--line); }
.ticker-bar i { display: block; height: 100%; width: 100%; background: var(--brand); transform-origin: left; transform: scaleX(0); animation: tick 5s linear infinite; }
.hero-ticker:hover .ticker-bar i { animation-play-state: paused; }
@keyframes tick { from { transform: scaleX(0); } to { transform: scaleX(1); } }
@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-art { display: none; }
}

/* ---------- 首屏读数：只放能从代码与库里算出来的东西 ---------- */
.hero-stats { display: flex; flex-wrap: wrap; gap: 0; margin-top: 34px; border-block-start: 1px solid var(--line); }
.hero-stats .hs-label { flex: 1 1 100%; padding-top: 12px; font: 500 10.5px/1 var(--mono); letter-spacing: .16em; text-transform: uppercase; color: var(--deep); }
.hero-stats b { display: inline-flex; align-items: baseline; gap: 7px; padding: 12px 18px 0 0; font-weight: 400; font-size: 13px; color: var(--mute); }
.hero-stats i { font: 600 21px/1 var(--mono); font-variant-numeric: tabular-nums; color: var(--ink); font-style: normal; }

/* ---------- 走马灯 ---------- */
.marquee { border-block: 1px solid var(--line); background: var(--paper); overflow: hidden; }
.track { display: flex; width: max-content; animation: slide 34s linear infinite; }
.marquee:hover .track { animation-play-state: paused; }
@keyframes slide { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.rail { display: flex; }
.cell {
  display: grid; place-items: center; width: 132px; height: 88px;
  border-inline-start: 1px solid var(--line); filter: grayscale(1); opacity: .62;
  transition: filter .25s ease, opacity .25s ease, background .25s ease;
  font-size: 14px; letter-spacing: .04em;
}
.cell:first-child { border-inline-start: 0; }
.cell:hover { filter: none; opacity: 1; background: rgba(213, 104, 67, 0.08); color: var(--deep); }

/* ---------- 结构事实带与块内脚注 ---------- */
/* 数没取到之前不要摆一排破折号：这些位置先隐身，取到了再出现；取不到就整块撤掉。 */
html:not([data-facts="ready"]) .facts, html:not([data-facts="ready"]) .hero-stats,
html:not([data-facts="ready"]) .block-metric, html:not([data-facts="ready"]) .stage-num { visibility: hidden; }
html[data-facts="off"] .facts, html[data-facts="off"] .hero-stats,
html[data-facts="off"] .block-metric, html[data-facts="off"] .stage-num { display: none; }
.facts { max-width: 1240px; margin: 0 auto 22px; display: flex; flex-wrap: wrap; gap: 10px 26px; padding: 14px 18px; border: 1px solid var(--line); background: var(--paper); }
.facts .fact { display: inline-flex; align-items: baseline; gap: 8px; font-size: 12.5px; color: var(--mute); }
.facts .fact i { font: 600 19px/1 var(--mono); font-variant-numeric: tabular-nums; font-style: normal; color: var(--deep); }
.block-metric { margin-top: 12px !important; padding-top: 10px; border-top: 1px dashed var(--line); font: 500 12px/1.5 var(--mono) !important; color: var(--deep) !important; letter-spacing: .02em; font-variant-numeric: tabular-nums; }

/* 数据链路每一环的真实计数 */
.stage-num { display: inline-block; margin-top: 6px; font: 600 15px/1 var(--mono); font-variant-numeric: tabular-nums; color: var(--deep); font-style: normal; }

/* ---------- 数据分析 ---------- */
.analysis-switch { max-width: 1240px; margin: 0 auto 18px; display: flex; flex-wrap: wrap; gap: 8px; }
.analysis-source { border: 1px solid var(--line); background: transparent; color: var(--mute); border-radius: 999px; padding: 9px 15px; font: inherit; font-size: 13px; cursor: pointer; }
.analysis-source:hover, .analysis-source.is-on { color: var(--deep); border-color: var(--brand); background: rgba(213,104,67,.08); }
.analysis { max-width: 1240px; margin: 0 auto; display: grid; gap: 18px; }
.analysis-read {
  display: flex; flex-wrap: wrap; border: 1px solid var(--line); background: var(--paper);
  font: 500 12.5px/1 var(--mono); letter-spacing: .04em; color: var(--mute);
}
.analysis-read b { display: inline-flex; flex-direction: column; gap: 6px; padding: 14px 18px; border-inline-start: 1px solid var(--line); font-weight: 400; }
.analysis-read b:first-child { border-inline-start: 0; }
.analysis-read i { font-style: normal; color: var(--deep); font-size: 17px; font-variant-numeric: tabular-nums; }
.analysis-tabs { display: flex; flex-wrap: wrap; gap: 8px; }
.tab { border: 1px solid var(--line); background: var(--paper); color: var(--mute); border-radius: 999px; padding: 8px 16px; font: inherit; font-size: 13.5px; cursor: pointer; transition: border-color .2s ease, color .2s ease, background .2s ease; }
.tab:hover { color: var(--ink); transform: translateY(-1px); }
.tab.is-on { border-color: var(--brand); color: var(--deep); background: rgba(213, 104, 67, 0.08); }
/* 2×2：四张图排成两行，第三列留空会让整节看起来没排完。 */
.charts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-block-start: 1px solid var(--line); min-width: 0; }
@media (max-width: 860px) { .charts { grid-template-columns: 1fr; } }
.chart { position: relative; overflow: hidden; margin: 0; padding: 16px 18px 12px; border-block-end: 1px solid var(--line); border-inline-start: 1px solid var(--line); min-width: 0; }
.chart:nth-child(odd) { border-inline-start: 0; }
.chart figcaption { font: 500 11px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--deep); margin-top: 8px; }
.plot { height: 250px; min-width: 0; overflow: hidden; }
.analysis-note { font-size: 12.5px; color: var(--mute); max-width: 82ch; text-wrap: pretty; }
.analysis-note a { color: var(--deep); text-decoration: underline; text-underline-offset: 2px; }
.benchmark { border-block-start: 1px solid var(--line); padding-top: 22px; }
.benchmark-head { max-width: 64ch; }
.benchmark-head h3 { margin: 8px 0; font-size: clamp(22px, 3vw, 38px); line-height: 1.05; font-weight: 500; }
.benchmark-head p:last-child { color: var(--mute); font-size: 13px; }
.benchmark-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin-top: 20px; border-block-start: 1px solid var(--line); }
.benchmark-row { padding: 16px; border-inline-start: 1px solid var(--line); border-block-end: 1px solid var(--line); }
.benchmark-row:first-child { border-inline-start: 0; }
.benchmark-row h4 { margin: 0 0 10px; font-size: 16px; font-weight: 500; }
.benchmark-row p { margin: 0; color: var(--mute); font-size: 13px; line-height: 1.6; }
.benchmark-meta { display: flex; gap: 12px; margin-top: 16px; color: var(--deep); font: 12px/1.3 var(--mono); }
@media (max-width: 860px) { .benchmark-list { grid-template-columns: 1fr; } .benchmark-row, .benchmark-row:first-child { border-inline-start: 0; } }
/* 图还没画出来时不要留四个空盒子；取不到数时也直接说明，不摆空图。 */
.analysis[data-state="loading"] .charts, .analysis[data-state="empty"] .charts, .analysis[data-state="error"] .charts { display: none; }
.analysis[data-state="empty"] .analysis-tabs, .analysis[data-state="error"] .analysis-tabs { display: none; }
.analysis[data-source="chicago"] .analysis-tabs { display: none; }
@media (max-width: 860px) { .plot { height: 200px; } }

/* ---------- 区块通用 ---------- */
.band { padding: clamp(56px, 9vw, 120px) var(--gutter); }
.band-head { max-width: 1240px; margin: 0 auto clamp(28px, 4vw, 52px); display: grid; gap: 14px; }
.band-head h2 { font-size: clamp(26px, 3.6vw, 44px); line-height: 1.14; letter-spacing: -0.025em; font-weight: 600; max-width: 24ch; }
.band-head p:last-child { color: var(--mute); max-width: 56ch; text-wrap: pretty; }
.band-ink { background: var(--paper); border-block: 1px solid var(--line); }

/* markitecture：细线拼块，进场靠 --i 逐块升起，悬停整块抬起 */
.grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  max-width: 1240px; margin: 0 auto;
  border-block-end: 1px solid var(--line); border-inline-end: 1px solid var(--line);
}
/* 进场只在有 JS 时启用，否则没脚本的抓取会拿到一片空白。 */
.js .block {
  opacity: 0; transform: translateY(14px);
  transition: opacity .55s ease, transform .55s ease, background .3s ease;
  transition-delay: calc(var(--i, 0) * 70ms);
}
.js .block.in { opacity: 1; transform: none; }
.block { position: relative; overflow: hidden; padding: 26px 24px 34px; border-inline-start: 1px solid var(--line); border-block-end: 1px solid var(--line); }
.block:first-child { border-inline-start: 0; }
.block h3 { font-size: 19px; letter-spacing: -0.01em; margin: 12px 0 8px; }
.block p:not(.eyebrow) { color: var(--mute); font-size: 14.5px; }
.block.is-wide { grid-column: span 2; }
@media (max-width: 860px) { .block.is-wide { grid-column: auto; } }
.block:hover { background: rgba(213, 104, 67, 0.05); }
.sweep {
  position: absolute; left: 0; bottom: 0; height: 2px; width: 100%; background: var(--brand);
  transform: scaleX(0); transform-origin: left; transition: transform .42s cubic-bezier(.2, .8, .2, 1);
}
.block:hover .sweep, .block:focus-within .sweep { transform: scaleX(1); }
.block-link { display: inline-flex; margin-top: 14px; font-size: 13.5px; font-weight: 500; color: var(--deep); }

/* ---------- 数据链路 ---------- */
.flow { max-width: 1240px; margin: 0 auto; display: grid; gap: 26px; }
.flow-rail { position: relative; height: 1px; background: var(--line); display: block; }
.flow-fill { position: absolute; inset: 0; background: var(--brand); transform-origin: left; transform: scaleX(var(--s, 0)); }
.packet {
  position: absolute; top: -3px; left: 0; width: 7px; height: 7px; border-radius: 50%;
  background: var(--brand); box-shadow: 0 0 14px 4px rgba(242, 165, 130, 0.7);
  animation: cruise 6s cubic-bezier(.45, 0, .55, 1) infinite;
}
@keyframes cruise { 0% { left: 0; opacity: 0; } 8% { opacity: 1; } 92% { opacity: 1; } 100% { left: 100%; opacity: 0; } }
.stages { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 0; }
.stage {
  display: grid; gap: 8px; justify-items: start; text-align: left; width: 100%;
  padding: 18px 18px 22px; background: none; border: 0; border-inline-start: 1px solid var(--line);
  font: inherit; color: var(--mute); cursor: pointer;
  transition: background .25s ease, color .25s ease;
}
.stages li:first-child .stage { border-inline-start: 0; }
.stage b { font-size: 16px; color: var(--ink); font-weight: 600; }
.stage small { font-size: 13px; line-height: 1.55; }
.stage:hover { background: rgba(213, 104, 67, 0.06); }
.stage.is-on { background: rgba(213, 104, 67, 0.1); }
.stage.is-on b { color: var(--deep); }
.flow-note { font-size: 13.5px; color: var(--mute); min-height: 22px; }

/* ---------- 助手演示 ---------- */
.demo { max-width: 900px; margin: 0 auto; display: grid; gap: 22px; }
.demo-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  border: 1px solid var(--line); background: var(--paper); color: var(--mute);
  border-radius: 999px; padding: 9px 16px; font: inherit; font-size: 13.5px; cursor: pointer;
  transition: border-color .2s ease, color .2s ease, transform .2s ease;
}
.chip:hover { transform: translateY(-1px); color: var(--ink); }
.chip.is-on { border-color: var(--brand); color: var(--deep); background: rgba(213, 104, 67, 0.08); }
.demo-stage {
  border: 1px solid var(--line); border-radius: 20px; background: var(--paper);
  padding: 28px clamp(20px, 4vw, 34px); display: grid; gap: 12px; min-height: 208px; align-content: start;
}
.demo-q { font-size: clamp(19px, 2.4vw, 26px); letter-spacing: -0.02em; min-height: 1.3em; }
.demo-q.caret { border-inline-end: 2px solid var(--brand); padding-inline-end: 3px; }
.demo-work, .demo-ans { display: none; align-items: center; gap: 10px; font-size: 14px; color: var(--mute); }
.demo-work.is-on, .demo-ans.is-on { display: flex; }
.demo-ans { color: var(--deep); font-weight: 500; }
.demo-ans svg { color: var(--brand); flex: none; }
.demo-src { font: 500 11.5px/1.5 var(--mono); letter-spacing: .04em; color: var(--mute); min-height: 17px; }
.dots { display: inline-flex; gap: 4px; }
.dots i { width: 5px; height: 5px; border-radius: 50%; background: var(--brand); animation: breathe 1.1s ease-in-out infinite; }
.dots i:nth-child(2) { animation-delay: .15s; } .dots i:nth-child(3) { animation-delay: .3s; }
@keyframes breathe { 0%, 100% { opacity: .28; transform: translateY(0); } 50% { opacity: 1; transform: translateY(-3px); } }
.demo-foot { font-size: 13px; color: var(--mute); max-width: 60ch; text-wrap: pretty; }

/* ---------- 深色收尾 ---------- */
.cta { position: relative; overflow: hidden; background: var(--night); color: #f6efe9; padding: clamp(64px, 10vw, 130px) var(--gutter); }
.cta .eyebrow { color: var(--warm); }
.cta-in { position: relative; z-index: 2; max-width: 1240px; }
.cta h2 { font-size: clamp(28px, 4.4vw, 52px); letter-spacing: -0.03em; margin: 14px 0 10px; font-weight: 600; }
.cta p { color: rgba(246, 239, 233, 0.7); max-width: 46ch; }
.cta-actions { margin-top: 26px; }
.cta .btn-solid:hover { color: var(--ink); }
.grain {
  position: absolute; inset: 0; z-index: 1; opacity: .5; pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='.42'/%3E%3C/svg%3E");
}
.glow {
  position: absolute; z-index: 1; right: -60px; top: 50%; width: 420px; height: 420px; translate: 0 -50%;
  background: radial-gradient(circle at 50% 50%, rgba(242, 165, 130, .9), rgba(213, 104, 67, .25) 45%, transparent 70%);
  mix-blend-mode: plus-lighter; pointer-events: none;
  animation: drift 12s ease-in-out infinite alternate;
}
@keyframes drift { from { transform: translate3d(0, -50%, 0) scale(1); } to { transform: translate3d(-60px, -42%, 0) scale(1.15); } }

/* ---------- 页脚 ---------- */
.foot { display: flex; flex-wrap: wrap; border-top: 1px solid var(--line); background: var(--paper); }
.foot-cell {
  display: inline-flex; align-items: center; min-height: 48px; padding: 0 20px;
  border-inline-start: 1px solid var(--line); font-size: 12.5px; color: var(--mute);
  transition: color .2s ease, background .2s ease;
}
.foot-cell:first-child { border-inline-start: 0; }
.foot-cell:hover { color: var(--deep); background: rgba(213, 104, 67, 0.06); }
.foot-last { margin-inline-start: auto; border-inline-end: 0; color: var(--ink); }

/* ---------- 动效降级：静态也要把话说完整 ---------- */
@media (prefers-reduced-motion: reduce) {
  .frame .stroke { animation: none; stroke-dashoffset: 0; }
  .lamp, .packet, .glow, .track, .ticker-bar i, .dots i { animation: none; }
  .hero-ticker:hover .ticker-bar i { animation: none; }
  .street { transform: none; }
  .js .block { opacity: 1; transform: none; transition: none; }
  /* 钉住段落靠滚动推进；不滚动的人不该多走一屏空白。 */
  .hero { min-height: 104vh; }
  .ticker-list li { transition: none; }
  .frame .pane { background: var(--warm); }
  .frame em { opacity: 1; transform: translate(0, -50%); }
  .ticker-list li { position: static; opacity: 1; transform: none; }
  .ticker-list { height: auto; }
}