/*
 * 男同视频 · 战报印刷厂设计系统
 * 文件职责：全站外部样式；暖象牙纸张、墨蓝结构、战术青柠与信号橙红。
 * 原则：视频优先、不对称编辑布局、清晰移动端层级、无紫色霓虹模板感。
 */
:root {
  --paper: #f4f0e7;
  --paper-strong: #fffdf7;
  --ink: #111a22;
  --ink-2: #1f2b35;
  --muted: #5c6870;
  --line: rgba(17, 26, 34, 0.18);
  --lime: #c8ff3d;
  --lime-deep: #95c700;
  --signal: #ff5a36;
  --sky: #a9d9ff;
  --white: #ffffff;
  --shadow: 0 24px 60px rgba(17, 26, 34, 0.16);
  --display: "Arial Black", "Microsoft YaHei", sans-serif;
  --body: "PingFang SC", "Microsoft YaHei", sans-serif;
  --mono: "Roboto Mono", "SFMono-Regular", Consolas, monospace;
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--paper); }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 15% 12%, rgba(200, 255, 61, 0.13), transparent 22rem),
    linear-gradient(rgba(17, 26, 34, 0.025) 1px, transparent 1px),
    var(--paper);
  background-size: auto, 100% 28px, auto;
  font-family: var(--body);
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }

.site-shell { width: min(100% - 40px, 1220px); margin-inline: auto; }
.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 999;
  padding: 10px 14px;
  background: var(--lime);
  color: var(--ink);
  transform: translateY(-180%);
  transition: transform 160ms var(--ease-out);
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: relative;
  z-index: 20;
  color: var(--paper-strong);
  background: var(--ink);
  border-bottom: 1px solid rgba(255,255,255,.12);
}
.header-top {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}
.brand-lockup { display: inline-flex; align-items: center; gap: 12px; min-width: max-content; }
.brand-lockup img { width: 54px; height: 54px; object-fit: contain; }
.brand-lockup strong {
  display: block;
  font-family: var(--display);
  font-size: 22px;
  line-height: 1;
  letter-spacing: -0.04em;
}
.brand-lockup small {
  display: block;
  margin-top: 5px;
  color: var(--lime);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: .08em;
}
.nav-toggle {
  display: none;
  border: 1px solid rgba(255,255,255,.25);
  padding: 9px 12px;
  color: #fff;
  background: transparent;
}
.primary-nav { display: flex; align-items: center; gap: 23px; }
.primary-nav a {
  position: relative;
  padding: 29px 0 25px;
  color: #e6e9e9;
  font-size: 13px;
  font-weight: 700;
}
.primary-nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 18px;
  left: 0;
  height: 3px;
  background: var(--lime);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms var(--ease-out);
}
.primary-nav a:hover::after,
.primary-nav a[aria-current="page"]::after { transform: scaleX(1); }

.search-dock {
  padding: 11px 0;
  color: var(--ink);
  background: var(--lime);
}
.search-row {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
}
.search-label { font-family: var(--display); font-size: 12px; }
.search-form { display: grid; grid-template-columns: 1fr auto; }
.search-form input {
  min-width: 0;
  height: 40px;
  border: 1px solid var(--ink);
  border-right: 0;
  padding: 0 13px;
  color: var(--ink);
  background: rgba(255,255,255,.58);
  outline: none;
}
.search-form input:focus { box-shadow: inset 0 0 0 2px var(--signal); }
.search-form button {
  height: 40px;
  border: 1px solid var(--ink);
  padding: 0 18px;
  color: #fff;
  background: var(--ink);
  font-weight: 800;
}
.search-state { font-family: var(--mono); font-size: 10px; }

.breadcrumb { padding: 11px 0; border-bottom: 1px solid var(--line); background: var(--paper-strong); }
.breadcrumb .site-shell { display: flex; gap: 8px; align-items: center; font-size: 12px; }
.breadcrumb a { font-weight: 800; }
.breadcrumb span { color: var(--signal); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 16px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .05em;
  text-transform: uppercase;
}
.eyebrow::before { content: ""; width: 28px; height: 7px; background: var(--lime); border: 1px solid var(--ink); }
.eyebrow--light::before { border-color: var(--paper-strong); }
.section-number {
  color: transparent;
  -webkit-text-stroke: 1px rgba(17,26,34,.28);
  font-family: var(--display);
  font-size: clamp(72px, 10vw, 150px);
  line-height: .8;
  letter-spacing: -.08em;
}

.hero-home {
  position: relative;
  isolation: isolate;
  min-height: 680px;
  display: grid;
  align-items: end;
  overflow: hidden;
  color: #fff;
  background: #0c151c url('/images/hero-game-commentary.jpg') center / cover no-repeat;
}
.hero-home::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(90deg, rgba(9,17,23,.96) 0%, rgba(9,17,23,.80) 44%, rgba(9,17,23,.18) 76%);
}
.hero-home::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: .14;
  background-image: radial-gradient(circle, #fff 1px, transparent 1.5px);
  background-size: 5px 5px;
  mix-blend-mode: overlay;
}
.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, .96fr) minmax(320px, .52fr);
  gap: clamp(34px, 7vw, 92px);
  align-items: end;
  padding: 95px 0 70px;
}
.hero-copy { max-width: 760px; }
.hero-copy h1 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(50px, 7vw, 94px);
  line-height: .98;
  letter-spacing: -.065em;
  text-wrap: balance;
}
.hero-copy h1 em { color: var(--lime); font-style: normal; }
.hero-intro { max-width: 650px; margin: 24px 0 0; color: #d8dedd; font-size: 17px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 11px; margin-top: 30px; }
.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--ink);
  padding: 0 19px;
  font-size: 13px;
  font-weight: 900;
  transition: transform 160ms var(--ease-out), background 160ms var(--ease-out), color 160ms var(--ease-out);
}
.button:active { transform: scale(.97); }
.button--lime { background: var(--lime); color: var(--ink); }
.button--lime:hover { background: #e5ff93; }
.button--paper { border-color: rgba(255,255,255,.55); color: #fff; background: rgba(255,255,255,.08); }
.button--paper:hover { background: #fff; color: var(--ink); }
.button--ink { color: #fff; background: var(--ink); }
.button--ink:hover { color: var(--ink); background: var(--lime); }
.button--signal { border-color: var(--signal); color: #fff; background: var(--signal); }

.hero-scoreboard {
  position: relative;
  border-top: 8px solid var(--lime);
  padding: 25px;
  color: var(--ink);
  background: rgba(244,240,231,.94);
  box-shadow: var(--shadow);
}
.hero-scoreboard::before {
  content: "LIVE";
  position: absolute;
  top: -8px;
  right: 0;
  padding: 5px 9px;
  color: #fff;
  background: var(--signal);
  font-family: var(--mono);
  font-size: 10px;
  transform: translateY(-100%);
}
.score-time { font-family: var(--mono); font-size: 12px; }
.hero-scoreboard h2 { margin: 13px 0 8px; font-family: var(--display); font-size: 26px; line-height: 1.15; }
.hero-scoreboard p { margin: 0; color: var(--muted); font-size: 13px; }
.score-list { display: grid; gap: 9px; margin-top: 22px; }
.score-list div { display: flex; justify-content: space-between; gap: 14px; padding-top: 9px; border-top: 1px solid var(--line); }
.score-list span { font-size: 12px; }
.score-list b { font-family: var(--mono); font-size: 11px; }

.ticker { overflow: hidden; border-block: 1px solid var(--ink); background: var(--lime); }
.ticker-track {
  display: flex;
  width: max-content;
  padding: 11px 0;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 800;
  animation: ticker 28s linear infinite;
}
.ticker-track span { margin-right: 54px; }
@keyframes ticker { to { transform: translateX(-50%); } }

.section { padding: clamp(75px, 9vw, 128px) 0; }
.section--ink { color: var(--paper-strong); background: var(--ink); }
.section--lime { background: var(--lime); }
.section--paper-strong { background: var(--paper-strong); }
.section-intro {
  display: grid;
  grid-template-columns: minmax(0, .82fr) minmax(300px, .6fr);
  gap: clamp(30px, 7vw, 95px);
  align-items: end;
  margin-bottom: 45px;
}
.section-intro h2 { margin: 0; font-family: var(--display); font-size: clamp(38px, 5vw, 62px); line-height: 1.04; letter-spacing: -.05em; }
.section-intro > p { margin: 0; color: var(--muted); }
.section--ink .section-intro > p { color: #bcc7ca; }

.editorial-split {
  display: grid;
  grid-template-columns: 170px minmax(0, 1fr);
  gap: clamp(30px, 6vw, 80px);
}
.rail-note { position: sticky; top: 24px; align-self: start; }
.rail-note b { display: block; font-family: var(--display); font-size: 15px; }
.rail-note p { color: var(--muted); font-family: var(--mono); font-size: 10px; line-height: 1.6; }

.video-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 18px; }
.video-card { grid-column: span 4; min-width: 0; background: var(--paper-strong); border: 1px solid var(--ink); }
.video-card--wide { grid-column: span 8; }
.video-frame {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  color: #fff;
  background: var(--ink-2);
}
.video-frame img { width: 100%; height: 100%; object-fit: cover; transition: transform 260ms var(--ease-out); }
.video-frame::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 46%, rgba(8,14,18,.72)); }
.video-frame--graphic { display: grid; place-items: center; background:
  linear-gradient(135deg, transparent 0 42%, var(--lime) 42% 46%, transparent 46%),
  repeating-linear-gradient(90deg, rgba(255,255,255,.06) 0 1px, transparent 1px 36px),
  var(--ink-2); }
.video-frame--graphic span.graphic-word { position: relative; z-index: 1; color: var(--lime); font-family: var(--display); font-size: clamp(26px, 4vw, 56px); transform: rotate(-4deg); }
.play-stamp {
  position: absolute;
  z-index: 2;
  top: 50%;
  left: 50%;
  width: 68px;
  height: 68px;
  display: grid;
  place-items: center;
  border: 2px solid var(--ink);
  color: var(--ink);
  background: var(--lime);
  border-radius: 50%;
  opacity: 0;
  transform: translate(-50%, -46%) scale(.95);
  transition: opacity 180ms var(--ease-out), transform 180ms var(--ease-out);
}
.video-card:hover .play-stamp,
.video-card:focus-within .play-stamp { opacity: 1; transform: translate(-50%, -50%) scale(1); }
.video-card:hover .video-frame img { transform: scale(1.035); }
.time-code { position: absolute; z-index: 3; right: 9px; bottom: 9px; padding: 4px 7px; color: #fff; background: var(--ink); font-family: var(--mono); font-size: 10px; }
.video-body { padding: 20px; }
.video-kicker { margin: 0 0 8px; color: var(--signal); font-family: var(--mono); font-size: 10px; font-weight: 800; }
.video-body h3 { margin: 0; font-family: var(--display); font-size: 22px; line-height: 1.2; }
.video-body > p:not(.video-kicker) { margin: 11px 0 0; color: var(--muted); font-size: 13px; }
.tag-row { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 16px; }
.tag-row span { border: 1px solid var(--ink); padding: 3px 7px; font-family: var(--mono); font-size: 9px; }

.capability-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.capability-card { min-height: 260px; padding: 28px 28px 28px 0; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.capability-card:nth-child(3n+2), .capability-card:nth-child(3n+3) { padding-left: 28px; }
.capability-card:nth-child(3n) { border-right: 0; }
.capability-card > span { color: var(--signal); font-family: var(--mono); font-size: 11px; }
.capability-card h3 { margin: 30px 0 12px; font-family: var(--display); font-size: 24px; line-height: 1.15; }
.capability-card p { margin: 0; color: var(--muted); font-size: 13px; }

.ai-layout { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(34px, 7vw, 90px); align-items: center; }
.ai-visual { position: relative; margin: 0; }
.ai-visual img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; box-shadow: 20px 20px 0 var(--lime); }
.ai-visual figcaption { margin-top: 29px; color: #bbc5c8; font-family: var(--mono); font-size: 10px; }
.ai-copy h2 { margin: 0 0 22px; font-family: var(--display); font-size: clamp(38px, 5vw, 62px); line-height: 1.04; }
.ai-copy > p { color: #bdc7ca; }
.ai-list { display: grid; gap: 0; margin: 26px 0 0; }
.ai-list article { display: grid; grid-template-columns: 44px 1fr; gap: 13px; padding: 17px 0; border-top: 1px solid rgba(255,255,255,.2); }
.ai-list b { color: var(--lime); font-family: var(--mono); font-size: 11px; }
.ai-list h3 { margin: 0 0 5px; font-family: var(--display); font-size: 18px; }
.ai-list p { margin: 0; color: #bdc7ca; font-size: 12px; }

.community-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.community-card { position: relative; min-height: 235px; overflow: hidden; border: 1px solid var(--ink); padding: 24px; background: rgba(255,255,255,.42); }
.community-card::after { content: attr(data-code); position: absolute; right: -7px; bottom: -28px; color: rgba(17,26,34,.09); font-family: var(--display); font-size: 94px; }
.community-card > span { font-family: var(--mono); font-size: 10px; }
.community-card h3 { margin: 29px 0 10px; font-family: var(--display); font-size: 22px; }
.community-card p { margin: 0; font-size: 13px; }

.expert-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.expert-card { display: grid; grid-template-columns: 118px 1fr; min-height: 270px; border: 1px solid var(--ink); background: var(--paper-strong); }
.expert-avatar { display: grid; place-items: center; color: var(--lime); background: var(--ink); font-family: var(--display); font-size: 44px; writing-mode: vertical-rl; }
.expert-body { padding: 24px; }
.expert-status { display: inline-block; padding: 3px 7px; color: #fff; background: var(--signal); font-family: var(--mono); font-size: 9px; }
.expert-body h3 { margin: 16px 0 9px; font-family: var(--display); font-size: 22px; }
.expert-body p { margin: 0; color: var(--muted); font-size: 12px; }
.expert-meta { margin: 15px 0 0; padding: 0; list-style: none; font-size: 11px; }
.expert-meta li { padding: 5px 0; border-top: 1px solid var(--line); }
.expert-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.expert-actions a { border-bottom: 2px solid var(--lime-deep); font-size: 11px; font-weight: 800; }

.partner-wall { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid rgba(255,255,255,.2); }
.partner-mark { min-height: 150px; display: grid; place-items: center; border-right: 1px solid rgba(255,255,255,.2); color: var(--paper-strong); text-align: center; }
.partner-mark:last-child { border-right: 0; }
.partner-mark b { display: block; color: var(--lime); font-family: var(--display); font-size: 21px; }
.partner-mark span { display: block; margin-top: 7px; color: #aeb9bc; font-family: var(--mono); font-size: 9px; }

.howto-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 17px; counter-reset: howto; }
.howto-card { position: relative; padding: 28px; background: var(--paper-strong); border-top: 6px solid var(--ink); box-shadow: 0 1px 0 var(--line); counter-increment: howto; }
.howto-card::before { content: "0" counter(howto); color: var(--signal); font-family: var(--mono); font-size: 11px; }
.howto-card h3 { margin: 26px 0 11px; font-family: var(--display); font-size: 22px; }
.howto-card p { margin: 0; color: var(--muted); font-size: 13px; }

.contact-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(34px, 7vw, 90px); align-items: start; }
.contact-copy h2 { margin: 0; font-family: var(--display); font-size: clamp(38px, 5vw, 58px); line-height: 1.03; }
.contact-copy > p { color: var(--muted); }
.contact-list { margin: 26px 0 0; }
.contact-list div { display: grid; grid-template-columns: 120px 1fr; gap: 20px; padding: 11px 0; border-top: 1px solid var(--line); }
.contact-list dt { color: var(--muted); font-size: 12px; }
.contact-list dd { margin: 0; font-size: 13px; font-weight: 800; word-break: break-all; }
.contact-visual { margin: 0; border: 1px solid var(--ink); background: var(--ink); }
.contact-visual img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.contact-visual figcaption { padding: 11px 14px; color: #c2ccce; font-size: 10px; }
.qr-row { display: flex; gap: 13px; margin-top: 17px; }
.qr-card { width: 136px; padding: 9px; border: 1px solid var(--ink); text-align: center; background: #fff; }
.qr-card img { width: 116px; height: 116px; object-fit: contain; }
.qr-card span { display: block; margin-top: 6px; font-size: 9px; }

.feedback-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.feedback-card { min-height: 188px; padding: 23px; border: 1px dashed rgba(17,26,34,.45); background: rgba(255,255,255,.42); }
.feedback-card span { color: var(--signal); font-family: var(--mono); font-size: 9px; }
.feedback-card h3 { margin: 20px 0 9px; font-family: var(--display); font-size: 18px; }
.feedback-card p { margin: 0; color: var(--muted); font-size: 12px; }

.faq-layout { display: grid; grid-template-columns: .55fr 1fr; gap: clamp(36px, 7vw, 90px); }
.faq-heading h2 { margin: 0; font-family: var(--display); font-size: clamp(38px, 5vw, 60px); line-height: 1.04; }
.faq-list { border-top: 1px solid rgba(255,255,255,.24); }
.faq-list details { border-bottom: 1px solid rgba(255,255,255,.24); }
.faq-list summary { padding: 19px 42px 19px 0; color: #fff; font-weight: 800; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list details p { margin: -6px 0 20px; color: #b9c4c7; font-size: 13px; }
.faq-list details[open] summary { color: var(--lime); }

.share-strip { padding: 38px 0; color: var(--ink); background: var(--signal); }
.share-row { display: flex; align-items: center; justify-content: space-between; gap: 25px; }
.share-row h2 { margin: 0; font-family: var(--display); font-size: clamp(25px, 3vw, 38px); }
.share-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.share-actions button { border: 1px solid var(--ink); padding: 9px 13px; color: var(--ink); background: transparent; font-size: 11px; font-weight: 800; }
.share-actions button:hover { color: #fff; background: var(--ink); }

.mcp-panel { display: grid; grid-template-columns: .9fr 1.1fr; gap: 28px; padding: 30px; color: #fff; background: var(--ink); }
.mcp-panel h3 { margin: 0 0 10px; font-family: var(--display); font-size: 25px; }
.mcp-panel p { margin: 0; color: #b9c4c7; font-size: 12px; }
.mcp-console { margin: 0; overflow: auto; padding: 18px; color: var(--lime); background: #071016; font-family: var(--mono); font-size: 10px; white-space: pre-wrap; }

.site-footer { padding: 64px 0 0; color: #fff; background: #0a1117; }
.footer-grid { display: grid; grid-template-columns: 1.05fr .9fr .65fr; gap: 45px; }
.footer-copy { margin-top: 20px; color: #aeb9bc; font-size: 12px; }
.footer-column h2 { margin: 0 0 15px; color: var(--lime); font-family: var(--display); font-size: 18px; }
.footer-column p, .footer-column a { color: #b9c4c7; font-size: 11px; }
.footer-column a { display: block; padding: 5px 0; }
.footer-qr { display: flex; gap: 10px; }
.footer-qr img { width: 84px; height: 84px; background: #fff; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; margin-top: 48px; padding: 17px 0; border-top: 1px solid rgba(255,255,255,.16); color: #8e9a9d; font-family: var(--mono); font-size: 9px; }

.toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 80;
  max-width: min(360px, calc(100vw - 36px));
  padding: 14px 16px;
  color: var(--ink);
  background: var(--lime);
  border: 1px solid var(--ink);
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 180ms var(--ease-out), transform 180ms var(--ease-out);
  pointer-events: none;
  font-size: 12px;
  font-weight: 800;
}
.toast.is-visible { opacity: 1; transform: translateY(0); }

.page-hero { padding: 90px 0 72px; border-bottom: 1px solid var(--ink); background: var(--paper-strong); }
.page-hero-grid { display: grid; grid-template-columns: 1fr .58fr; gap: 70px; align-items: end; }
.page-hero h1 { margin: 0; font-family: var(--display); font-size: clamp(45px, 7vw, 84px); line-height: .98; letter-spacing: -.06em; }
.page-hero p { margin: 0; color: var(--muted); }
.article-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 17px; }
.article-card { min-height: 270px; padding: 26px; border: 1px solid var(--ink); background: var(--paper-strong); }
.article-card span { color: var(--signal); font-family: var(--mono); font-size: 10px; }
.article-card h2 { margin: 32px 0 12px; font-family: var(--display); font-size: 23px; line-height: 1.18; }
.article-card p { margin: 0; color: var(--muted); font-size: 13px; }
.status-note { margin-top: 22px; padding: 16px 18px; border-left: 6px solid var(--signal); background: rgba(255,90,54,.08); font-size: 12px; }

@media (max-width: 980px) {
  .nav-toggle { display: block; }
  .primary-nav {
    position: absolute;
    top: 82px;
    right: 20px;
    left: 20px;
    display: grid;
    gap: 0;
    padding: 10px 18px;
    background: var(--ink-2);
    border: 1px solid rgba(255,255,255,.2);
    opacity: 0;
    transform: translateY(-8px);
    pointer-events: none;
    transition: opacity 180ms var(--ease-out), transform 180ms var(--ease-out);
  }
  .primary-nav.is-open { opacity: 1; transform: translateY(0); pointer-events: auto; }
  .primary-nav a { padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,.12); }
  .primary-nav a::after { display: none; }
  .search-row { grid-template-columns: 120px 1fr; }
  .search-state { display: none; }
  .hero-layout, .ai-layout, .contact-layout, .page-hero-grid { grid-template-columns: 1fr; }
  .hero-home { min-height: 720px; background-position: 62% center; }
  .hero-scoreboard { max-width: 560px; }
  .editorial-split { grid-template-columns: 1fr; }
  .rail-note { position: static; display: none; }
  .video-card, .video-card--wide { grid-column: span 6; }
  .community-grid, .capability-grid, .feedback-grid, .article-grid { grid-template-columns: repeat(2, 1fr); }
  .capability-card, .capability-card:nth-child(3n+2), .capability-card:nth-child(3n+3) { padding: 24px; border: 1px solid var(--line); }
  .expert-grid { grid-template-columns: 1fr; }
  .partner-wall { grid-template-columns: repeat(2, 1fr); }
  .partner-mark:nth-child(2) { border-right: 0; }
  .partner-mark:nth-child(-n+2) { border-bottom: 1px solid rgba(255,255,255,.2); }
  .howto-grid { grid-template-columns: 1fr; }
  .faq-layout { grid-template-columns: 1fr; }
  .mcp-panel, .footer-grid { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  .site-shell { width: min(100% - 28px, 1220px); }
  .header-top { min-height: 70px; }
  .brand-lockup img { width: 44px; height: 44px; }
  .brand-lockup strong { font-size: 18px; }
  .brand-lockup small { font-size: 8px; }
  .primary-nav { top: 70px; }
  .search-row { grid-template-columns: 1fr; gap: 7px; }
  .search-label { display: none; }
  .hero-home { min-height: 690px; background-position: 68% center; }
  .hero-layout { padding: 74px 0 42px; }
  .hero-copy h1 { font-size: clamp(43px, 14vw, 66px); }
  .hero-intro { font-size: 14px; }
  .hero-scoreboard { padding: 20px; }
  .section { padding: 70px 0; }
  .section-intro { grid-template-columns: 1fr; margin-bottom: 31px; }
  .section-intro h2, .ai-copy h2, .contact-copy h2, .faq-heading h2 { font-size: 38px; }
  .video-grid { display: grid; grid-template-columns: 1fr; }
  .video-card, .video-card--wide { grid-column: auto; }
  .community-grid, .capability-grid, .feedback-grid, .article-grid { grid-template-columns: 1fr; }
  .expert-card { grid-template-columns: 78px 1fr; }
  .partner-wall { grid-template-columns: 1fr; }
  .partner-mark, .partner-mark:nth-child(2) { border-right: 0; border-bottom: 1px solid rgba(255,255,255,.2); }
  .share-row { align-items: flex-start; flex-direction: column; }
  .contact-list div { grid-template-columns: 1fr; gap: 4px; }
  .qr-row { flex-wrap: wrap; }
  .footer-bottom { flex-direction: column; }
  .page-hero { padding: 70px 0 56px; }
  .page-hero h1 { font-size: 48px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .ticker-track { animation: none; }
}