:root {
  /* 学院 heritage 色系：羊皮纸 / 深橄榄 / 哑金 */
  --paper: #f4ecd8;
  --paper-soft: #ede3c9;
  --ink: #2a2520;
  --green: #2f3d29;
  --green-deep: #232b1e;
  --gold: #af915f;
  --gold-deep: #8f7445;
  --muted: #6e6653;
  --hairline: rgba(42, 37, 32, .22);
  --hairline-strong: rgba(42, 37, 32, .85);
  --hairline-light: rgba(244, 236, 216, .28);
  --selection: #af915f;

  /* 字体三轨：宋体标题 / 系统黑体正文 / 等宽元数据 */
  --font-display: Georgia, "Times New Roman", "Songti SC", "STSong", "Noto Serif SC", "SimSun", serif;
  --font-body: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: "SF Mono", Menlo, "JetBrains Mono", "Courier New", monospace;

  /* 网格变量 */
  --margin: clamp(20px, 4.5vw, 72px);
  --gutter: clamp(16px, 2vw, 28px);
  --columns: 12;

  --ease-ui: cubic-bezier(0, .25, .25, 1);
  --ease-fade: cubic-bezier(.6, 0, .2, 1);

  color: var(--ink);
  background: var(--paper);
  font-family: var(--font-body);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  min-width: 320px;
  margin: 0;
  color: var(--ink);
  background: var(--paper);
}

::selection {
  background: var(--green);
  color: var(--paper);
}

/* 4px 定制滚动条，延伸材质感到浏览器镀铬 */
::-webkit-scrollbar { width: 4px; height: 4px; }
::-webkit-scrollbar-track { background: #c9c0a8; }
::-webkit-scrollbar-thumb { background: var(--ink); }

a {
  color: inherit;
  text-decoration: none;
}

img, video {
  display: block;
  max-width: 100%;
}

/* 逐字动画的 mask 结构 */
.hero-title .ch {
  display: inline-block;
  overflow: hidden;
  vertical-align: bottom;
}
.hero-title .ch-in {
  display: inline-block;
  will-change: transform;
}

/* 校园脉搏跑马灯 */
.marquee {
  overflow: hidden;
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  padding: 20px 0;
  background: var(--paper-soft);
}
.marquee-track {
  display: flex;
  width: max-content;
  will-change: transform;
}
.marquee-group {
  display: flex;
  flex: none;
}
.marquee-group span {
  font-family: var(--font-display);
  font-size: clamp(22px, 2.6vw, 38px);
  letter-spacing: .08em;
  white-space: nowrap;
  padding-left: clamp(28px, 3vw, 48px);
}
.marquee-group span::after {
  content: "·";
  margin-left: clamp(28px, 3vw, 48px);
  color: var(--gold);
}

/* 下划线显隐：参照的悬停动效 */
.link-underline {
  background-image: linear-gradient(currentColor, currentColor);
  background-size: 0% 1px;
  background-repeat: no-repeat;
  background-position: 0 100%;
  padding-bottom: 2px;
  transition: background-size .35s var(--ease-ui);
}
.link-underline:hover {
  background-size: 100% 1px;
}

.site-shell {
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--paper);
}

/* ========== 通用版式元件 ========== */

.eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--gold-deep);
  text-transform: uppercase;
}

.section-head {
  padding: 0 var(--margin) calc(var(--gutter) * 1.6);
  border-bottom: 1px solid var(--hairline);
}
.section-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(30px, 4.2vw, 52px);
  font-weight: 500;
  letter-spacing: .01em;
  line-height: 1.25;
  font-feature-settings: "liga" on;
}

/* 固定宽高比图框（padding hack），图注带发丝线 */
.figure { margin: 0; }
.figure-frame {
  position: relative;
  overflow: hidden;
  background: var(--paper-soft);
}
.figure-frame::before {
  content: "";
  float: left;
}
.figure-portrait .figure-frame::before { padding-top: 140%; }   /* 7:5 竖图 */
.figure-landscape .figure-frame::before { padding-top: 66.67%; } /* 2:3 横图 */
.figure-frame img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  /* 轻新闻印刷感：保留彩色，仅轻微降饱和+暖调，悬停还原自然色 */
  filter: saturate(.86) contrast(1.04) brightness(1.02);
  transition: filter .4s cubic-bezier(.19, 1, .22, 1);
}
.figure:hover .figure-frame img {
  filter: none;
}
/* 胶片颗粒（极轻，只添纸质噪感） */
.figure-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .07;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.55'/%3E%3C/svg%3E");
}
/* 档案编号徽章 */
.fig-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  z-index: 2;
  padding: 3px 9px;
  background: var(--paper);
  border: 1px solid var(--ink);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .18em;
  color: var(--ink);
}
.figure figcaption {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--hairline);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--muted);
}

/* 发丝线行：悬停时底线从 25% 拉到 100% */
.ruled-row {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 0;
  cursor: pointer;
}
.ruled-row::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(.25);
  transform-origin: left;
  transition: transform .4s var(--ease-ui);
  opacity: .4;
}
.ruled-row:hover::after {
  transform: scaleX(1);
  opacity: 1;
}
.row-mark {
  font-family: var(--font-mono);
  font-size: 12px;
  width: 28px;
  color: var(--gold-deep);
}
.row-label {
  flex: 1;
  font-size: 15px;
  letter-spacing: .04em;
}
.row-arrow {
  font-family: var(--font-mono);
  transition: transform .35s var(--ease-ui);
}
.ruled-row:hover .row-arrow { transform: translateX(6px); }

/* 吉祥物印章：金丝圆形徽记，替代飘浮卡通 */
.mascot-seal {
  position: absolute;
  width: clamp(72px, 7vw, 104px);
  height: clamp(72px, 7vw, 104px);
  border: 1px solid var(--gold);
  border-radius: 50%;
  background: var(--paper);
  display: grid;
  place-items: center;
  padding: 10px;
}
.mascot-seal img {
  width: 82%;
  height: 82%;
  object-fit: contain;
}
.mascot-seal.dark {
  background: var(--green-deep);
  border-color: var(--gold);
}

/* ========== Hero ========== */

.hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  color: var(--ink);
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: -1;
  display: none; /* 有视频时启用 */
}
.hero-media:not(:empty) { display: block; }
.hero-media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.site-header {
  display: flex;
  align-items: center;
  gap: calc(var(--gutter) * 1.5);
  padding: 22px var(--margin);
  border-bottom: 1px solid var(--hairline);
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand-logo {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid var(--hairline);
  object-fit: cover;
}
.brand-name {
  font-family: var(--font-display);
  font-size: 20px;
  letter-spacing: .12em;
}
.nav-links {
  flex: 1;
  display: flex;
  justify-content: center;
  gap: clamp(18px, 3vw, 44px);
}
.nav-links a {
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--muted);
  transition: color .3s var(--ease-ui);
}
.nav-links a::after {
  content: "↴";
  margin-left: 5px;
  font-size: 10px;
  color: var(--gold-deep);
  opacity: 0;
  transition: opacity .3s var(--ease-ui);
}
.nav-links a:hover { color: var(--ink); }
.nav-links a:hover::after { opacity: 1; }
.header-download {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
}

/* Hero：标题探入图区的破格网格 */
.hero-grid {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(var(--columns), 1fr);
  column-gap: var(--gutter);
  align-content: center;
  padding: calc(var(--gutter) * 1.6) var(--margin) calc(var(--gutter) * 2);
}

.meta-line {
  grid-column: 1 / -1;
  grid-row: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 32px;
  margin: 0 0 20px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--muted);
}
.hero-title {
  grid-column: 1 / 10;
  grid-row: 2;
  position: relative;
  z-index: 1; /* 标题文字探入图区下方 */
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(52px, 8vw, 124px);
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: .015em;
  font-feature-settings: "liga" on;
}
.hero-vertical {
  position: absolute;
  top: 128px;
  right: calc(var(--margin) * .35);
  writing-mode: vertical-rl;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .5em;
  color: var(--muted);
  z-index: 3;
}
.hero-copy {
  grid-column: 1 / 7;
  grid-row: 3;
  position: relative;
  z-index: 1;
  align-self: start;
  padding-top: calc(var(--gutter) * 1.4);
}
.hero-figures {
  grid-column: 8 / 13;
  grid-row: 2 / 4;
  position: relative;
  z-index: 2; /* 图压标题 */
}
/* 标题内嵌哑金色块标签（元数据入标题） */
.title-tag {
  display: inline-block;
  vertical-align: .18em;
  margin-left: .35em;
  padding: .12em .5em;
  background: var(--gold);
  color: var(--green-deep);
  font-family: var(--font-mono);
  font-size: .22em;
  letter-spacing: .3em;
  transform: translateY(-.1em);
}
.hero-sub {
  margin: 0 0 30px;
  max-width: 30em;
  font-size: 16px;
  line-height: 1.9;
  color: var(--muted);
  letter-spacing: .03em;
}

.download-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 22px;
}
.download-badge {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 22px;
  border: 1px solid var(--hairline-strong);
  transition: background-color .35s var(--ease-ui), border-color .35s var(--ease-ui), color .35s var(--ease-ui);
}
.download-badge:hover {
  background: var(--green);
  border-color: var(--green);
  color: var(--paper);
}
.platform-mark {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--gold-deep);
}
.download-badge:hover .platform-mark { color: var(--gold); }
.badge-text small {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .16em;
  opacity: .7;
}
.badge-text strong {
  display: block;
  font-size: 14px;
  letter-spacing: .06em;
  margin-top: 2px;
}
.qr-popover {
  position: absolute;
  left: 50%;
  bottom: calc(100% + 12px);
  transform: translateX(-50%) translateY(4px);
  width: 132px;
  padding: 10px;
  background: var(--paper);
  border: 1px solid var(--hairline-strong);
  text-align: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s var(--ease-fade), transform .3s var(--ease-ui);
  z-index: 5;
}
.qr-popover img { width: 100%; }
.qr-popover em {
  display: block;
  margin-top: 6px;
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .12em;
  color: var(--muted);
}
.download-badge:hover .qr-popover {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.hero-note {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .3em;
  color: var(--muted);
}

.hero-main { width: 100%; }
.hero-side {
  position: absolute;
  left: calc(var(--gutter) * -2);
  bottom: calc(var(--gutter) * -1.5);
  width: 34%;
  background: var(--paper);
  padding: 8px 8px 0;
  border: 1px solid var(--hairline);
}
.mascot-seal {
  top: calc(clamp(72px, 7vw, 104px) / -2);
  right: calc(clamp(72px, 7vw, 104px) / -3);
}

/* ========== 校园布告栏（3px 粗边公文质感） ========== */

.notice-section {
  padding: calc(var(--gutter) * 3) 0 0;
}
.notice-board {
  margin: 0 var(--margin);
  border: 3px solid var(--ink);
  background: var(--paper-soft);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding-bottom: 22px;
}
.notice-board-head {
  grid-column: 1 / -1;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 20px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .24em;
}
/* 便签纸：微旋转 + 图钉 + 纸边阴影 */
.notice-item {
  position: relative;
  margin: 0 20px;
  padding: 26px 22px 22px;
  background: var(--paper);
  border: 1px solid var(--hairline);
  box-shadow: 2px 3px 0 rgba(42, 37, 32, .14);
}
.notice-item:nth-child(2) { transform: rotate(-.7deg); }
.notice-item:nth-child(3) { transform: rotate(.5deg) translateY(6px); }
.notice-item:nth-child(4) { transform: rotate(-.4deg); }
.notice-item::before {
  content: "";
  position: absolute;
  top: 9px;
  left: 50%;
  width: 9px;
  height: 9px;
  transform: translateX(-50%);
  border-radius: 50%;
  background: var(--gold-deep);
  box-shadow: inset -1px -1px 0 rgba(42, 37, 32, .4);
}
.notice-date {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--gold-deep);
  font-feature-settings: "tnum" on;
}
.notice-item h3 {
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 500;
  letter-spacing: .03em;
}
.notice-item p {
  margin: 0 0 16px;
  font-size: 13px;
  line-height: 1.9;
  color: var(--muted);
  letter-spacing: .03em;
}
.notice-tag {
  display: inline-block;
  padding: 3px 10px;
  border: 1px solid var(--gold-deep);
  color: var(--gold-deep);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .28em;
  text-indent: .28em; /* 字距补偿居中 */
}

.hero-meta-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--hairline);
}
.meta-cell {
  display: grid;
  gap: 6px;
  padding: 20px var(--margin);
  border-right: 1px solid var(--hairline);
}
.meta-cell:last-child { border-right: none; }
.meta-index {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--gold-deep);
}
.meta-cell strong {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  letter-spacing: .06em;
}
.meta-desc {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: .05em;
}

/* ========== 01 校园生活 ========== */

.story-section {
  padding-top: calc(var(--gutter) * 3);
  background: var(--paper);
}
.story-grid {
  display: grid;
  grid-template-columns: repeat(var(--columns), 1fr);
  column-gap: var(--gutter);
  padding: calc(var(--gutter) * 2.4) var(--margin) calc(var(--gutter) * 3);
}
.section-copy {
  grid-column: 1 / span 4;
  align-self: center;
}
.section-copy p {
  margin: 0 0 26px;
  font-size: 15px;
  line-height: 2;
  color: var(--muted);
  letter-spacing: .03em;
}
.text-link {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--ink);
}
.story-collage {
  grid-column: 5 / span 8;
  position: relative;
  padding-bottom: 12%;
}
.story-main { width: 76%; }
.story-main figcaption { margin-right: 16%; } /* 日期不被侧图压住 */
.story-side {
  position: absolute;
  right: 0;
  width: 30%;
  background: var(--paper);
  padding: 8px 8px 0;
  border: 1px solid var(--hairline);
}
.story-side.top { top: 0; }
.story-side.bottom { bottom: 0; }

/* ========== 02 小程序入口（深绿带） ========== */

.entry-section {
  position: relative;
  background: var(--green);
  color: var(--paper);
  padding: calc(var(--gutter) * 3.2) var(--margin);
}
/* 深绿带内图片：与全站一致的轻印刷处理 */
.entry-section .figure-frame img {
  filter: saturate(.86) contrast(1.04) brightness(1.05);
}
.entry-section .figure:hover .figure-frame img {
  filter: none;
}
.entry-section .figure-frame::after { opacity: .05; }
.entry-section .eyebrow { color: var(--gold); }
.entry-grid {
  display: grid;
  grid-template-columns: repeat(var(--columns), 1fr);
  column-gap: var(--gutter);
  align-items: center;
}
.entry-copy { grid-column: 1 / span 6; }
.entry-copy h2 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(30px, 3.8vw, 48px);
  font-weight: 500;
  line-height: 1.3;
  letter-spacing: .01em;
}
.entry-copy > p {
  margin: 0 0 30px;
  max-width: 30em;
  font-size: 15px;
  line-height: 2;
  color: rgba(244, 236, 216, .72);
  letter-spacing: .03em;
}
.entry-downloads {
  border-top: 1px solid var(--hairline-light);
}
.entry-downloads .ruled-row { color: var(--paper); }
.entry-downloads .row-mark { color: var(--gold); }
.entry-exhibit {
  grid-column: 8 / span 5;
  position: relative;
}
.qr-plate {
  margin: 0;
  width: 62%;
  background: var(--green-deep);
  border: 1px solid var(--gold);
  padding: 18px;
}
.qr-frame {
  background: var(--paper);
  padding: 12px;
}
.qr-frame img { width: 100%; }
.qr-plate figcaption {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--hairline-light);
  display: grid;
  gap: 4px;
}
.qr-plate figcaption strong {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 500;
  letter-spacing: .08em;
}
.qr-plate figcaption span {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: rgba(244, 236, 216, .6);
}
.entry-preview {
  position: absolute;
  right: 0;
  bottom: calc(var(--gutter) * -1);
  width: 44%;
  background: var(--green-deep);
  padding: 8px 8px 0;
  border: 1px solid var(--hairline-light);
}
.entry-preview figcaption {
  border-top-color: var(--hairline-light);
  color: rgba(244, 236, 216, .6);
}
.entry-exhibit .mascot-seal.dark {
  top: -32px;
  right: 12%;
}

/* ========== 03 发现 ========== */

.tile-section {
  padding-top: calc(var(--gutter) * 3);
}
.tile-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  column-gap: var(--gutter);
  padding: calc(var(--gutter) * 2.4) var(--margin) calc(var(--gutter) * 3);
}
.tile {
  position: relative;
  border: 1px solid var(--hairline);
  padding: 10px 10px 18px;
  transition: border-color .35s var(--ease-ui);
}
.tile:hover { border-color: var(--hairline-strong); }
.tile-index {
  position: absolute;
  top: -10px;
  left: 18px;
  z-index: 1;
  padding: 0 8px;
  background: var(--paper);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--gold-deep);
}
.tile strong {
  display: block;
  margin-top: 14px;
  padding: 0 6px;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 500;
  letter-spacing: .05em;
}

/* ========== 04 合作 ========== */

.cooperation-section {
  display: grid;
  grid-template-columns: repeat(var(--columns), 1fr);
  column-gap: var(--gutter);
  padding: calc(var(--gutter) * 3) var(--margin);
  border-top: 1px solid var(--hairline);
}
.cooperation-photo {
  grid-column: 1 / span 5;
}
.cooperation-card {
  grid-column: 7 / span 6;
  align-self: center;
}
.cooperation-card h2 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: clamp(28px, 3.4vw, 44px);
  font-weight: 500;
  line-height: 1.3;
}
.cooperation-card > p {
  margin: 0 0 26px;
  font-size: 15px;
  line-height: 2;
  color: var(--muted);
  letter-spacing: .03em;
}
.cooperation-options {
  margin-bottom: 26px;
  border-top: 1px solid var(--hairline);
}
.ruled-row.static { cursor: default; }
.contact-lines {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  margin-bottom: 30px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
}
.primary-link {
  display: inline-block;
  padding: 13px 34px;
  border: 1px solid var(--ink);
  font-size: 14px;
  letter-spacing: .12em;
  transition: background-color .35s var(--ease-ui), color .35s var(--ease-ui);
}
.primary-link:hover {
  background: var(--ink);
  color: var(--paper);
}

/* ========== 页脚 ========== */

.site-footer {
  position: relative;
  overflow: hidden;
  background: var(--green-deep);
  color: var(--paper);
  padding: calc(var(--gutter) * 2.6) var(--margin) 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gutter);
  padding-bottom: calc(var(--gutter) * 2);
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.footer-brand img {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--hairline-light);
}
.footer-brand strong {
  font-family: var(--font-display);
  font-size: 19px;
  letter-spacing: .14em;
}
.footer-brand-block p {
  margin: 0;
  max-width: 26em;
  font-size: 13px;
  line-height: 1.9;
  color: rgba(244, 236, 216, .6);
}
.footer-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 24px;
  align-content: start;
  justify-items: end;
}
.footer-nav a {
  font-size: 13px;
  letter-spacing: .12em;
  color: rgba(244, 236, 216, .72);
  transition: color .3s var(--ease-ui);
}
.footer-nav a:hover { color: var(--gold); }
/* 超大衬线水印字 */
.footer-wordmark {
  font-family: var(--font-display);
  font-size: clamp(90px, 16vw, 240px);
  line-height: .9;
  letter-spacing: .1em;
  text-align: center;
  color: rgba(244, 236, 216, .06);
  user-select: none;
  pointer-events: none;
  margin-bottom: -0.18em;
}
.footer-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 32px;
  padding: 18px 0;
  border-top: 1px solid var(--hairline-light);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: rgba(244, 236, 216, .5);
}
.footer-meta a:hover { color: var(--gold); }

/* ========== 协议页 ========== */

.agreement-page {
  padding: calc(var(--gutter) * 2) var(--margin) calc(var(--gutter) * 3);
  max-width: 880px;
  margin: 0 auto;
}
.back-home {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--muted);
}
.back-home:hover { color: var(--ink); }
.agreement-document {
  margin-top: calc(var(--gutter) * 1.6);
  padding-top: calc(var(--gutter) * 1.6);
  border-top: 1px solid var(--hairline-strong);
}
.agreement-document h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(32px, 4.5vw, 52px);
  font-weight: 500;
  letter-spacing: .02em;
}
.agreement-meta {
  display: flex;
  gap: 32px;
  padding: 14px 0;
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  margin-bottom: calc(var(--gutter) * 1.6);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--muted);
}
.agreement-content {
  font-size: 15px;
  line-height: 2.1;
  letter-spacing: .03em;
  color: var(--ink);
}
.agreement-content h2, .agreement-content h3 {
  font-family: var(--font-display);
  font-weight: 500;
}

/* ========== 响应式 ========== */

@media (max-width: 1050px) {
  .hero-title { grid-column: 1 / -1; grid-row: 2; }
  .hero-figures { grid-column: 2 / 12; grid-row: 3; margin-bottom: calc(var(--gutter) * 2); }
  .hero-copy { grid-column: 1 / -1; grid-row: 4; padding-top: 0; }
  .hero-vertical { display: none; }
  .notice-board { grid-template-columns: 1fr; }
  .notice-item { transform: none !important; margin: 0 16px; }
  .section-copy { grid-column: 1 / span 12; margin-bottom: calc(var(--gutter) * 2); }
  .story-collage { grid-column: 1 / span 12; }
  .entry-copy { grid-column: 1 / span 12; margin-bottom: calc(var(--gutter) * 2.4); }
  .entry-exhibit { grid-column: 2 / span 10; padding-bottom: 20%; }
  .cooperation-photo { grid-column: 1 / span 12; margin-bottom: calc(var(--gutter) * 2); }
  .cooperation-card { grid-column: 1 / span 12; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-nav { justify-items: start; }
}

@media (max-width: 750px) {
  .nav-links { display: none; }
  .site-header { justify-content: space-between; }
  .hero-title { font-size: clamp(40px, 11vw, 56px); }
  .hero-figures { grid-column: 1 / -1; }
  .hero-side { left: 0; }
  .hero-meta-row { grid-template-columns: 1fr; }
  .meta-cell { border-right: none; border-bottom: 1px solid var(--hairline); }
  .meta-cell:last-child { border-bottom: none; }
  .notice-board-head { flex-direction: column; gap: 4px; }
  .story-main { width: 100%; }
  .story-side { position: static; width: 60%; margin-top: var(--gutter); }
  .story-collage { padding-bottom: 0; display: grid; gap: var(--gutter); }
  .tile-grid { grid-template-columns: 1fr; row-gap: calc(var(--gutter) * 1.6); }
  .qr-plate { width: 78%; }
  .entry-preview { position: static; width: 70%; margin-top: var(--gutter); }
  .entry-exhibit { padding-bottom: 0; }
  .download-badge { flex: 1 1 100%; }
}

/* ========== 02 校园地图 ========== */

.map-section {
  padding-top: calc(var(--gutter) * 3);
}
.map-grid {
  display: grid;
  grid-template-columns: repeat(var(--columns), 1fr);
  column-gap: var(--gutter);
  padding: calc(var(--gutter) * 2.4) var(--margin) calc(var(--gutter) * 3);
}
.map-panel {
  grid-column: 1 / span 9;
  border: 3px solid var(--ink);
  background: var(--paper-soft);
}
.map-panel-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 18px;
  border-bottom: 3px solid var(--ink);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
}
.map-panel-head span:last-child { color: var(--muted); }
.map-canvas {
  position: relative;
  padding: 10px;
}
.map-svg {
  display: block;
  width: 100%;
  height: auto;
}
.map-feature {
  stroke: var(--ink);
  stroke-width: 1.5;
  transition: filter .3s var(--ease-ui), opacity .3s var(--ease-ui);
  cursor: pointer;
}
.map-feature.building { fill: var(--paper); }
.map-feature.dorm { fill: #e4d9ba; }
.map-feature.sport { fill: #cfd8bc; }
.map-feature.nature { fill: #dfe6d2; stroke: rgba(42, 37, 32, .5); }
.map-feature.road {
  fill: none;
  stroke: var(--muted);
  stroke-width: 2.5;
  stroke-dasharray: 10 7;
  cursor: default;
}
.map-feature.active {
  filter: drop-shadow(0 0 0.5px var(--gold-deep)) brightness(1.04);
  stroke: var(--gold-deep);
  stroke-width: 2.5;
}
.map-label {
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: .12em;
  fill: var(--ink);
  text-anchor: middle;
  pointer-events: none;
}
.poi-dot { fill: var(--gold-deep); stroke: var(--paper); stroke-width: 2; }
.poi-halo {
  fill: none;
  stroke: var(--gold);
  stroke-width: 1;
  opacity: .7;
  animation: poiPulse 2.6s ease-out infinite;
}
@keyframes poiPulse {
  0% { transform: scale(.55); opacity: .8; }
  100% { transform: scale(1.35); opacity: 0; }
}
.map-poi { cursor: pointer; transform-box: fill-box; }
.poi-label {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: .1em;
  fill: var(--ink);
}
.map-tooltip {
  position: absolute;
  left: 18px;
  bottom: 18px;
  padding: 6px 14px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  pointer-events: none;
}
.map-side {
  grid-column: 10 / span 3;
  align-self: start;
  position: sticky;
  top: 24px;
}
.map-legend, .map-places {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
}
.map-legend li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px solid var(--hairline);
  font-size: 13px;
  letter-spacing: .05em;
}
.chip {
  width: 14px;
  height: 14px;
  border: 1.5px solid var(--ink);
  flex: none;
}
.chip.building { background: var(--paper); }
.chip.dorm { background: #e4d9ba; }
.chip.sport { background: #cfd8bc; }
.chip.nature { background: #dfe6d2; }
.chip.poi { background: var(--gold-deep); border-radius: 50%; border-color: var(--gold-deep); }
.map-places li {
  padding: 8px 0;
  border-bottom: 1px solid var(--hairline);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--muted);
}
.map-places li::before {
  content: "· ";
  color: var(--gold-deep);
}

@media (max-width: 1050px) {
  .map-panel { grid-column: 1 / -1; }
  .map-side { grid-column: 1 / -1; position: static; margin-top: calc(var(--gutter) * 1.6); }
}
@media (max-width: 750px) {
  .map-label { font-size: 20px; }
  .poi-label { font-size: 18px; }
}

/* ---------- 校园地图增强：底图 / 详情卡 / 未开放态 ---------- */
.map-base-image {
  pointer-events: none;
}
.map-loading {
  display: grid;
  place-items: center;
  min-height: 320px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
}
.map-notice {
  margin: 0 0 10px;
  padding: 10px 14px;
  border: 2px solid var(--ink);
  background: var(--paper);
  color: var(--ink);
  font-size: 13px;
  letter-spacing: .06em;
}
.map-feature.unopened,
.map-poi.unopened {
  opacity: .55;
  stroke-dasharray: 6 5;
}
.map-poi.unopened .poi-halo { animation: none; opacity: .35; }
.map-detail-card {
  position: absolute;
  right: 18px;
  bottom: 18px;
  display: grid;
  gap: 4px;
  max-width: 260px;
  padding: 12px 34px 12px 14px;
  border: 2px solid var(--ink);
  background: var(--paper);
  color: var(--ink);
  box-shadow: 4px 4px 0 rgba(42, 37, 32, .85);
}
.map-detail-card strong {
  font-size: 15px;
  letter-spacing: .04em;
}
.map-detail-kind {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .2em;
}
.map-detail-unopened {
  margin: 4px 0 0;
  color: var(--gold-deep);
  font-size: 12px;
  line-height: 1.5;
}
.map-detail-close {
  position: absolute;
  top: 6px;
  right: 8px;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
}
.map-detail-close:hover { color: var(--ink); }
.map-error-note {
  margin: 10px 0 0;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .14em;
}
.map-place-btn {
  border: 0;
  padding: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  letter-spacing: inherit;
  cursor: pointer;
  text-align: left;
}
.map-place-btn:hover { color: var(--gold-deep); }