/* ============================================================
   Blacksburg Compass · 组件样式
   视觉系统:校园地图 + 服务站 + 公告栏(颜色一律走 tokens)
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: 1.7;
  color: var(--color-ink);
  background-color: var(--color-bg);
  /* 淡地图网格:大格 128px + 小格 32px */
  background-image:
    linear-gradient(var(--map-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--map-grid-line) 1px, transparent 1px),
    linear-gradient(var(--map-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--map-grid-line) 1px, transparent 1px);
  background-size: 128px 128px, 128px 128px, 32px 32px, 32px 32px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--color-station-maroon); }
button { font-family: inherit; }

/* 焦点环:所有可交互元素统一 */
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 2px;
  border-radius: 4px;
}

.skipLink {
  position: absolute; left: -9999px; top: 0;
  background: var(--color-station-maroon); color: #fff;
  padding: 10px 18px; z-index: 100; border-radius: 0 0 8px 0;
}
.skipLink:focus { left: 0; }

.pageWrap { max-width: var(--page-max); margin: 0 auto; padding: 0 24px; }

/* ---------- 通用:导视牌式 Section 头 ---------- */
.section { padding: 72px 0 24px; position: relative; }

.sectionHeader {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 16px; margin-bottom: 28px;
  border-bottom: 2px solid var(--color-ink);
  padding-bottom: 14px;
}
.sectionHeader .shLeft { display: flex; align-items: center; gap: 14px; }
.stationCode {
  flex: none;
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 44px; height: 44px; padding: 0 8px;
  border: 2px solid var(--color-ink); border-radius: 8px;
  font-family: var(--font-mono); font-weight: 700; font-size: 15px;
  background: var(--color-surface);
}
.sectionTitleGroup h2 {
  margin: 0; font-size: var(--fs-section); line-height: 1.25; font-weight: 700;
}
.sectionTitleGroup .enLabel {
  display: block; margin-top: 2px;
  font-size: var(--fs-tag); letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--color-muted); font-family: var(--font-mono);
}
.sectionHeader .shArrow {
  font-family: var(--font-mono); font-size: 20px; color: var(--color-route-orange);
  padding-bottom: 2px; user-select: none;
}
.sectionSubtitle { margin: -16px 0 24px; color: var(--color-muted); font-size: 15px; }

/* ---------- 徽章 / 标签 / chips ---------- */
.tag {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: var(--fs-tag); line-height: 1; padding: 5px 9px;
  border-radius: var(--radius-tag); border: 1px solid var(--color-border);
  background: var(--color-bg); color: var(--color-muted); white-space: nowrap;
}
.tagMaroon { background: var(--tint-maroon); color: var(--color-station-maroon); border-color: transparent; }
.tagOrange { background: var(--tint-orange); color: var(--color-route-orange); border-color: transparent; }
.tagGreen  { background: var(--tint-green);  color: var(--color-map-green);  border-color: transparent; }
.tagGold   { background: var(--tint-gold);   color: var(--color-gold); border-color: var(--color-gold); }
.tagGray   { background: var(--tint-bluegray); color: var(--color-bluegray); border-color: transparent; }

/* 状态点:形状 + 颜色 + 文字 三重表达 */
.statusBadge { display: inline-flex; align-items: center; gap: 6px; font-size: var(--fs-tag); font-weight: 600; }
.statusBadge .dot { width: 8px; height: 8px; flex: none; }
.statusOpen .dot     { background: var(--color-map-green); border-radius: 50%; }
.statusOpen          { color: var(--color-map-green); }
.statusUpcoming .dot { background: var(--color-route-orange); border-radius: 2px; transform: rotate(45deg); }
.statusUpcoming      { color: var(--color-route-orange); }
.statusClosed .dot   { background: var(--color-muted); border-radius: 1px; }
.statusClosed        { color: var(--color-muted); }
.statusPast .dot     { background: transparent; border: 2px solid var(--color-muted); border-radius: 50%; width: 6px; height: 6px; }
.statusPast          { color: var(--color-muted); }

.chipRow { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 20px; padding: 0; }
.chip {
  min-height: 44px; padding: 8px 16px; cursor: pointer;
  border: 1.5px solid var(--color-border); border-radius: var(--radius-chip);
  background: var(--color-surface); color: var(--color-ink);
  font-size: var(--fs-small); font-weight: 500;
  transition: border-color var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out);
}
.chip:hover { border-color: var(--color-route-orange); }
.chip[aria-pressed="true"] {
  background: var(--color-ink); color: var(--color-bg); border-color: var(--color-ink);
}
.chip[aria-pressed="true"]::before { content: "✓ "; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 10px 22px; cursor: pointer; text-decoration: none;
  border-radius: 8px; font-size: 15px; font-weight: 600; border: 1.5px solid transparent;
  transition: transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out),
    background var(--dur-fast) var(--ease-out);
}
.btn:active { transform: translateY(1px); }
.btnPrimary { background: var(--color-station-maroon); color: #FFFDF7; }
.btnPrimary:hover { box-shadow: var(--shadow-lift); }
.btnSecondary { background: transparent; color: var(--color-ink); border-color: var(--color-ink); }
.btnSecondary:hover { background: var(--color-sand); }
[data-theme="dark"] .btnSecondary:hover { background: var(--tint-orange); }
.btnGhost { background: transparent; color: var(--color-station-maroon); padding: 10px 6px; }
.btnGhost:hover { color: var(--color-route-orange); }
.btnGhost::after { content: " →"; font-family: var(--font-mono); }

/* ---------- Header:服务站顶栏 ---------- */
.topStrip {
  background: var(--color-ink); color: var(--color-bg);
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.08em;
}
.topStrip .pageWrap { display: flex; justify-content: space-between; gap: 16px; padding-top: 6px; padding-bottom: 6px; }
.topStrip span { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.siteHeader {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--color-surface) 92%, transparent);
  border-bottom: 1px solid var(--color-border);
}
@supports not (background: color-mix(in srgb, red 50%, blue)) {
  .siteHeader { background: var(--color-surface); }
}
.headerBar { display: flex; align-items: center; gap: 20px; padding: 12px 0; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--color-ink); margin-right: auto; }
.hubBadge {
  flex: none; display: flex; flex-direction: column; align-items: center; justify-content: center;
  width: 52px; height: 52px; border: 2.5px solid var(--color-station-maroon); border-radius: 10px;
  color: var(--color-station-maroon); background: var(--color-surface);
  font-family: var(--font-mono); font-weight: 700; font-size: 10px; letter-spacing: 0.05em;
  line-height: 1.3; text-align: center;
}
.brandText .zh { font-size: 17px; font-weight: 700; line-height: 1.3; }
.brandText .en { font-size: 11px; color: var(--color-muted); letter-spacing: 0.04em; }

.mainNav ul { display: flex; gap: 4px; list-style: none; margin: 0; padding: 0; }
.mainNav a {
  display: inline-flex; align-items: center; min-height: 44px; padding: 6px 13px;
  text-decoration: none; color: var(--color-ink); font-size: 15px; border-radius: 8px;
  border-bottom: 2px solid transparent;
  transition: background var(--dur-fast) var(--ease-out);
}
.mainNav a:hover { background: var(--tint-orange); color: var(--color-route-orange); }
.headerCtas { display: flex; gap: 10px; }
.menuToggle {
  display: none; min-width: 44px; min-height: 44px; cursor: pointer;
  border: 1.5px solid var(--color-ink); border-radius: 8px; background: var(--color-surface);
  font-size: 18px; color: var(--color-ink);
}

/* ---------- Hero:Blacksburg Compass ---------- */
.hero { position: relative; padding: 64px 0 80px; overflow: hidden; }
.heroBg { position: absolute; inset: 0; pointer-events: none; }
.heroBg svg { width: 100%; height: 100%; }
.heroGrid { position: relative; display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); gap: 48px; align-items: start; }

.heroKicker {
  display: inline-flex; align-items: center; gap: 10px; margin-bottom: 18px;
  font-family: var(--font-mono); font-size: 13px; letter-spacing: 0.08em;
  color: var(--color-map-green);
}
.heroKicker::before { content: "◉"; color: var(--color-route-orange); }
.hero h1 { margin: 0 0 16px; font-size: var(--fs-h1); line-height: 1.18; font-weight: 800; }
.hero h1 .accentLine { color: var(--color-station-maroon); }
.heroSub { margin: 0 0 28px; max-width: 34em; color: var(--color-muted); font-size: 17px; }
.heroCtas { display: flex; flex-wrap: wrap; gap: 12px; }

.heroMeta {
  margin-top: 36px; display: flex; flex-wrap: wrap; gap: 10px 24px;
  font-family: var(--font-mono); font-size: 12px; color: var(--color-muted); letter-spacing: 0.05em;
}
.heroMeta span::before { content: "— "; color: var(--color-route-orange); }

/* Compass Panel:服务面板 */
.compassPanel {
  border: 2px solid var(--color-ink); border-radius: var(--radius-card);
  background: var(--color-surface); box-shadow: var(--shadow-card); overflow: hidden;
}
.compassPanelHead {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 14px 18px; background: var(--color-ink); color: var(--color-bg);
}
.compassPanelHead .cpTitle { font-weight: 700; font-size: 15px; }
.compassPanelHead .cpCoord { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em; opacity: 0.75; }
.compassList { list-style: none; margin: 0; padding: 0; }
.compassList li + li { border-top: 1px dashed var(--color-border); }
.stationEntry {
  display: grid; grid-template-columns: auto 1fr auto; gap: 4px 14px; align-items: center;
  padding: 15px 18px; text-decoration: none; color: var(--color-ink);
  transition: background var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}
.stationEntry:hover, .stationEntry:focus-visible { background: var(--tint-orange); }
.stationEntry:hover .seArrow { transform: translateX(4px); color: var(--color-route-orange); }
.seCode {
  grid-row: span 2; align-self: center;
  width: 44px; height: 44px; display: flex; align-items: center; justify-content: center;
  border-radius: 50%; border: 2px solid var(--color-station-maroon);
  color: var(--color-station-maroon); font-family: var(--font-mono); font-weight: 700; font-size: 13px;
  background: var(--color-surface);
}
.seTop { display: flex; align-items: center; gap: 10px; }
.seTitle { font-weight: 700; font-size: 16px; }
.seSummary { grid-column: 2; font-size: 13px; color: var(--color-muted); line-height: 1.5; }
.seArrow {
  grid-row: span 2; font-family: var(--font-mono); font-size: 18px; color: var(--color-muted);
  transition: transform var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out);
}

/* ---------- 卡片基础 ---------- */
.card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-card); padding: 20px; box-shadow: var(--shadow-card);
  transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out),
    border-color var(--dur-base) var(--ease-out);
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lift); border-color: var(--color-stone); }
.cardTitle { margin: 0 0 6px; font-size: var(--fs-card-title); font-weight: 700; line-height: 1.4; }
.cardDesc { margin: 0; font-size: 14px; color: var(--color-muted); line-height: 1.65; }

/* ---------- 推荐行动 ---------- */
.actionsGrid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.actionCard { display: flex; flex-direction: column; gap: 10px; }
.actionCard .acMeta { display: flex; gap: 8px; flex-wrap: wrap; }
.actionCard .btnGhost { margin-top: auto; align-self: flex-start; font-size: 14px; min-height: 36px; }
.actionsGrid > .actionCard:first-child { grid-row: span 1; border-left: 4px solid var(--color-station-maroon); }
.emptyHint { color: var(--color-muted); font-size: 14px; padding: 24px 0; }

/* ---------- 新生路线图 ---------- */
.routeMap { position: relative; padding-left: 34px; }
.routeMap::before {
  content: ""; position: absolute; left: 13px; top: 8px; bottom: 8px;
  border-left: 3px dashed var(--map-route-line);
}
.routeStage { position: relative; margin-bottom: 14px; }
.routeStage::before {
  content: ""; position: absolute; left: -29px; top: 18px;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--color-surface); border: 3px solid var(--color-route-orange);
}
.routeStage[open]::before { background: var(--color-route-orange); }
.routeStage summary {
  list-style: none; cursor: pointer; user-select: none;
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-card); padding: 14px 18px; min-height: 44px;
  transition: border-color var(--dur-fast) var(--ease-out);
}
.routeStage summary::-webkit-details-marker { display: none; }
.routeStage summary:hover { border-color: var(--color-route-orange); }
.rsCode { font-family: var(--font-mono); font-weight: 700; color: var(--color-route-orange); font-size: 14px; }
.rsTitle { font-weight: 700; font-size: 17px; }
.rsSub { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--color-muted); }
.rsCount { margin-left: auto; font-size: 13px; color: var(--color-muted); }
.rsChevron { font-family: var(--font-mono); color: var(--color-muted); transition: transform var(--dur-base) var(--ease-out); }
.routeStage[open] .rsChevron { transform: rotate(90deg); }

.checklist { list-style: none; margin: 12px 0 6px; padding: 6px 0 0 6px; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.checkItem {
  display: grid; grid-template-columns: auto 1fr; gap: 3px 12px;
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: 10px; padding: 12px 14px;
}
.checkItem .box {
  grid-row: span 2; align-self: start; margin-top: 5px;
  width: 16px; height: 16px; border: 2px solid var(--color-map-green); border-radius: 4px;
  display: flex; align-items: center; justify-content: center;
  color: var(--color-map-green); font-size: 11px; font-weight: 800;
}
.checkItem .ciTitle { font-weight: 600; font-size: 15px; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.checkItem .ciSummary { grid-column: 2; font-size: 13px; color: var(--color-muted); line-height: 1.55; }

/* ---------- 活动公告板 ---------- */
.eventsBoard { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 20px; }

/* 票根卡 */
.ticketCard {
  grid-row: span 2; display: grid; grid-template-columns: 1fr auto; overflow: hidden;
  background: var(--color-surface); border: 1.5px solid var(--color-ink);
  border-radius: var(--radius-card); box-shadow: var(--shadow-card); position: relative;
}
.ticketMain { padding: 26px 28px; }
.ticketMain .tkKicker { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.08em; color: var(--color-route-orange); margin-bottom: 10px; }
.ticketMain h3 { margin: 0 0 4px; font-size: 24px; line-height: 1.3; }
.ticketMain .tkSubtitle { color: var(--color-muted); font-size: 14px; margin: 0 0 14px; }
.ticketMain .tkDesc { font-size: 14px; color: var(--color-ink); margin: 0 0 18px; max-width: 40em; }
.tkFacts { display: flex; flex-wrap: wrap; gap: 8px 20px; font-size: 13px; color: var(--color-muted); margin-bottom: 20px; }
.tkFacts b { color: var(--color-ink); font-weight: 600; }
/* 撕票孔线 */
.ticketStub {
  position: relative; display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 8px; padding: 24px 26px; min-width: 150px; text-align: center;
  border-left: 2px dashed var(--color-border); background: var(--tint-maroon);
}
.ticketStub::before, .ticketStub::after {
  content: ""; position: absolute; left: -9px; width: 16px; height: 16px; border-radius: 50%;
  background: var(--color-bg); border: 1.5px solid var(--color-ink);
}
.ticketStub::before { top: -9px; }
.ticketStub::after { bottom: -9px; }
.stubDate { font-family: var(--font-mono); font-weight: 800; font-size: 30px; line-height: 1; color: var(--color-station-maroon); }
.stubMonth { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.08em; color: var(--color-muted); }

/* 公告卡 */
.bulletinCard { position: relative; display: flex; flex-direction: column; gap: 8px; padding-top: 24px; }
.bulletinCard::before {
  content: ""; position: absolute; top: 10px; left: 50%; transform: translateX(-50%);
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--color-route-orange); box-shadow: 0 1px 2px rgba(39,34,31,0.35);
}
.bulletinCard .bcMeta { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; font-size: 13px; color: var(--color-muted); }
.bulletinCard .bcFoot { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: auto; }

/* ---------- 赞助商目录 ---------- */
.sponsorNote {
  display: flex; gap: 10px; align-items: flex-start;
  background: var(--tint-gold); border: 1px solid var(--color-gold); border-radius: 10px;
  padding: 12px 16px; font-size: 13px; color: var(--color-ink); margin-bottom: 20px;
}
.sponsorNote::before { content: "ⓘ"; color: var(--color-gold); font-weight: 700; }
.sponsorGrid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.sponsorCard { display: flex; flex-direction: column; gap: 10px; }
.sponsorCard.tierTitle { grid-column: span 3; border: 1.5px solid var(--color-gold); }
.sponsorCard.tierGold { grid-column: span 3; border-top: 3px solid var(--color-gold); }
.sponsorCard.tierSilver, .sponsorCard.tierCommunity { grid-column: span 2; }
.spHead { display: flex; align-items: center; gap: 12px; }
.monogram {
  flex: none; width: 46px; height: 46px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  background: var(--tint-maroon); color: var(--color-station-maroon);
  font-weight: 800; font-size: 19px;
}
.spName { font-weight: 700; font-size: 17px; line-height: 1.3; }
.spTags { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 3px; }
.benefitList { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 5px; font-size: 13.5px; }
.benefitList li { display: flex; gap: 8px; align-items: baseline; }
.benefitList li::before { content: "▸"; color: var(--color-route-orange); flex: none; }
.promoChip {
  align-self: flex-start; font-family: var(--font-mono); font-size: 12px;
  border: 1px dashed var(--color-route-orange); color: var(--color-route-orange);
  border-radius: 6px; padding: 3px 8px;
}
.spDisclaimer { font-size: 11.5px; color: var(--color-muted); margin: 0; }
.spFoot { margin-top: auto; display: flex; gap: 8px; flex-wrap: wrap; }
.sponsorSectionCta { margin-top: 24px; display: flex; justify-content: center; }

/* ---------- 服务窗口 ---------- */
.deskGrid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.deskCard { position: relative; padding-top: 46px; }
.deskCard .windowLabel {
  position: absolute; top: 0; left: 0; right: 0;
  display: flex; justify-content: space-between; align-items: center;
  padding: 8px 16px; border-bottom: 1px solid var(--color-border);
  background: var(--color-sand); border-radius: var(--radius-card) var(--radius-card) 0 0;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em; color: var(--color-ink);
}
[data-theme="dark"] .deskCard .windowLabel { background: var(--tint-bluegray); color: var(--color-ink); }
.deskCard .windowLabel .wlDot { color: var(--color-map-green); }
.exampleTags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }

/* ---------- 招募 ---------- */
.recruitGrid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.recruitCard { padding: 0; overflow: hidden; }
.recruitCard summary {
  list-style: none; cursor: pointer; display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  padding: 18px 20px; min-height: 44px;
}
.recruitCard summary::-webkit-details-marker { display: none; }
.recruitCard summary:hover { background: var(--tint-orange); }
.rcDept { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--color-bluegray); }
.rcTitle { font-weight: 700; font-size: 17px; }
.rcRight { margin-left: auto; display: flex; align-items: center; gap: 12px; font-size: 13px; color: var(--color-muted); }
.rcBody { padding: 0 20px 18px; border-top: 1px dashed var(--color-border); }
.rcBody h4 { margin: 14px 0 6px; font-size: 13px; letter-spacing: 0.05em; color: var(--color-muted); font-weight: 600; }
.rcBody ul { margin: 0; padding-left: 20px; font-size: 14px; }
.recruitCta { margin-top: 24px; display: flex; justify-content: center; gap: 12px; }

/* ---------- 赞助合作 ---------- */
.packageGrid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; align-items: stretch; }
.packageCard { display: flex; flex-direction: column; gap: 12px; position: relative; }
.packageCard.recommended { border: 1.5px solid var(--color-gold); }
.recommendTag {
  position: absolute; top: -11px; left: 18px;
  background: var(--color-route-orange); color: #FFFDF7;
  font-size: 11px; font-weight: 700; letter-spacing: 0.05em;
  padding: 3px 10px; border-radius: var(--radius-tag);
}
.pkPrice { font-family: var(--font-mono); font-size: 12.5px; color: var(--color-gold); }
.pkFeatures { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 7px; font-size: 14px; }
.pkFeatures li { display: flex; gap: 8px; align-items: baseline; }
.pkFeatures li::before { content: "✓"; color: var(--color-map-green); font-weight: 700; flex: none; }
.packageCard .btn { margin-top: auto; }

/* ---------- FAQ ---------- */
.faqList { display: flex; flex-direction: column; gap: 10px; max-width: 860px; }
.faqItem { border: 1px solid var(--color-border); border-radius: 10px; background: var(--color-surface); }
.faqItem summary {
  list-style: none; cursor: pointer; display: flex; align-items: center; gap: 12px;
  padding: 15px 18px; font-weight: 600; font-size: 15.5px; min-height: 44px;
}
.faqItem summary::-webkit-details-marker { display: none; }
.faqItem summary:hover { color: var(--color-route-orange); }
.faqItem summary .qMark { font-family: var(--font-mono); color: var(--color-station-maroon); font-weight: 800; }
.faqItem summary .rsChevron { margin-left: auto; }
.faqItem[open] .rsChevron { transform: rotate(90deg); }
.faqAnswer { padding: 0 18px 16px 44px; font-size: 14.5px; color: var(--color-muted); }

/* ---------- Footer ---------- */
.siteFooter {
  margin-top: 80px; border-top: 2px solid var(--color-ink);
  background: var(--color-surface);
}
.footerGrid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 32px; padding: 44px 0 28px; }
.footerGrid h4 { margin: 0 0 12px; font-size: 13px; letter-spacing: 0.08em; color: var(--color-muted); font-weight: 600; }
.footerGrid ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.footerGrid a { color: var(--color-ink); text-decoration: none; font-size: 14px; }
.footerGrid a:hover { color: var(--color-route-orange); }
.footerBrand .brandText .zh { font-size: 18px; }
.footerBrand p { font-size: 13px; color: var(--color-muted); max-width: 26em; }
.footerBottom {
  border-top: 1px solid var(--color-border); padding: 16px 0 28px;
  font-size: 12px; color: var(--color-muted); line-height: 1.7;
}
.footerBottom .coordLine { font-family: var(--font-mono); letter-spacing: 0.05em; margin-top: 6px; }

/* ---------- 主题切换 ---------- */
.themeToggle {
  min-width: 44px; min-height: 44px; cursor: pointer;
  border: 1.5px solid var(--color-border); border-radius: 8px;
  background: var(--color-surface); color: var(--color-ink); font-size: 16px;
}
.themeToggle:hover { border-color: var(--color-route-orange); }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .actionsGrid { grid-template-columns: repeat(2, 1fr); }
  .deskGrid { grid-template-columns: repeat(2, 1fr); }
  .sponsorCard.tierTitle, .sponsorCard.tierGold { grid-column: span 6; }
  .sponsorCard.tierSilver, .sponsorCard.tierCommunity { grid-column: span 3; }
  .footerGrid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .heroGrid { grid-template-columns: 1fr; gap: 32px; }
  .eventsBoard { grid-template-columns: 1fr; }
  .mainNav, .headerCtas { display: none; }
  .menuToggle { display: inline-flex; align-items: center; justify-content: center; }
  .siteHeader.menuOpen .mainNav {
    display: block; position: absolute; top: 100%; left: 0; right: 0;
    background: var(--color-surface); border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-lift); padding: 12px 24px 20px;
  }
  .siteHeader.menuOpen .mainNav ul { flex-direction: column; }
  .siteHeader.menuOpen .mainNav a { width: 100%; }
  .packageGrid { grid-template-columns: 1fr; }
  .recruitGrid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .pageWrap { padding: 0 16px; }
  .section { padding-top: 56px; }
  .actionsGrid { grid-template-columns: 1fr; }
  .checklist { grid-template-columns: 1fr; }
  .deskGrid { grid-template-columns: 1fr; }
  .sponsorGrid { display: flex; flex-direction: column; }
  .ticketCard { grid-template-columns: 1fr; }
  .ticketStub {
    flex-direction: row; border-left: none; border-top: 2px dashed var(--color-border);
    min-width: 0; padding: 16px 20px;
  }
  .ticketStub::before { top: auto; bottom: auto; left: -9px; top: -9px; }
  .ticketStub::after { left: auto; right: -9px; top: -9px; bottom: auto; }
  .topStrip .pageWrap span:last-child { display: none; }
  .heroMeta { display: none; }
  .footerGrid { grid-template-columns: 1fr; gap: 24px; }
}

/* ---------- 动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}