/* ==========================================================================
   秦皇岛海洋守护公益 · 站点样式
   设计方向：纸本编辑风 —— 沙纸底、深海墨正文、海玻璃青高亮、朱红印章
   变量名沿用纸本版的语义位：--wheat 现为海玻璃青，--jade 现为潮汐蓝
   ========================================================================== */

:root {
  --paper: #f3f0e6;
  --paper-2: #e9e6db;
  --paper-3: #d7d4c7;
  --ink: #0f2733;
  --ink-2: #35525f;
  --ink-3: #6b8593;
  --wheat: #2f7f7a;
  --wheat-soft: #cbe2de;
  --clay: #b23a2c;
  --jade: #1f5f8b;
  --line: rgba(15, 39, 51, 0.16);
  --line-soft: rgba(15, 39, 51, 0.08);

  --font-display: "Songti SC", "STZhongsong", "STSong", "SimSun", "Noto Serif SC", serif;
  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --font-num: Baskerville, "Times New Roman", Georgia, serif;

  --wrap: 1180px;
  --ease: cubic-bezier(0.2, 0.72, 0.22, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background-color: var(--paper);
  /* 潮线：极淡的水平水纹，与沙纸底色叠合 */
  background-image: repeating-linear-gradient(
    0deg,
    rgba(47, 127, 122, 0.055) 0 1px,
    transparent 1px 11px
  );
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  letter-spacing: 0.01em;
  overflow-x: hidden;
}

/* 颗粒纸纹叠加 */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 999;
  pointer-events: none;
  opacity: 0.05;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)'/%3E%3C/svg%3E");
}

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

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  margin: 0;
  letter-spacing: -0.01em;
}

p { margin: 0 0 1em; }

::selection { background: var(--wheat-soft); }

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 28px;
}

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(247, 243, 234, 0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 12px 0;
}

.brand { display: flex; align-items: center; gap: 13px; }

.seal {
  width: 46px;
  height: 46px;
  flex: 0 0 46px;
  border-radius: 50%;
  background: var(--clay);
  color: #fdf8ee;
  display: grid;
  place-content: center;
  font-family: var(--font-display);
  font-size: 14px;
  line-height: 1.02;
  text-align: center;
  letter-spacing: 0.02em;
  transform: rotate(-7deg);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.5) inset, 0 6px 14px -8px rgba(173, 58, 43, 0.8);
}

.seal span { display: block; }

.brand-text strong {
  display: block;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 400;
  letter-spacing: 0.06em;
}

.brand-text em {
  display: block;
  font-style: normal;
  font-size: 10.5px;
  letter-spacing: 0.28em;
  color: var(--ink-3);
  text-transform: uppercase;
}

.nav { display: flex; align-items: center; gap: 26px; }

.nav a {
  position: relative;
  font-size: 14.5px;
  color: var(--ink-2);
  letter-spacing: 0.08em;
  padding-bottom: 3px;
  transition: color 0.25s;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1.5px;
  background: var(--clay);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease);
}

.nav a:hover { color: var(--ink); }
.nav a:hover::after, .nav a[aria-current="page"]::after { transform: scaleX(1); }
.nav a[aria-current="page"] { color: var(--ink); }

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--ink);
  color: var(--paper);
  font-size: 14px;
  letter-spacing: 0.1em;
  border-radius: 2px;
  transition: background 0.3s, transform 0.3s;
}

.header-cta:hover { background: var(--jade); transform: translateY(-2px); }

.menu-btn {
  display: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 9px 12px;
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--ink);
  cursor: pointer;
}

/* ---------- 通用按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 30px;
  border: 1px solid var(--ink);
  border-radius: 2px;
  font-size: 15px;
  letter-spacing: 0.1em;
  color: var(--ink);
  background: transparent;
  cursor: pointer;
  font-family: var(--font-body);
  transition: background 0.3s, color 0.3s, transform 0.3s var(--ease), border-color 0.3s;
}

.btn:hover { background: var(--ink); color: var(--paper); transform: translateY(-2px); }

.btn.solid { background: var(--clay); border-color: var(--clay); color: #fdf8ee; }
.btn.solid:hover { background: #932e21; border-color: #932e21; color: #fff; }

.btn.ghost { border-color: var(--line); color: var(--ink-2); }
.btn.ghost:hover { background: var(--ink-2); border-color: var(--ink-2); color: var(--paper); }

.btn.small { padding: 10px 20px; font-size: 13.5px; }

/* ---------- 首屏 ---------- */
.hero { position: relative; padding: 76px 0 54px; }

.hero-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 26px;
  align-items: end;
}

.hero-copy { grid-column: 1 / span 7; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 11.5px;
  letter-spacing: 0.32em;
  color: var(--wheat);
  text-transform: uppercase;
  margin-bottom: 26px;
}

.eyebrow::before {
  content: "";
  width: 34px;
  height: 1px;
  background: var(--wheat);
}

.hero-copy h1 {
  font-size: clamp(40px, 6.4vw, 84px);
  line-height: 1.06;
  margin-bottom: 26px;
}

.hero-copy h1 .hl {
  position: relative;
  color: var(--clay);
}

.hero-copy h1 .hl::after {
  content: "";
  position: absolute;
  left: -2px; right: -2px; bottom: 6px;
  height: 9px;
  background: var(--wheat-soft);
  opacity: 0.75;
  z-index: -1;
}

.hero-lead {
  max-width: 30em;
  font-size: 17px;
  color: var(--ink-2);
  margin-bottom: 34px;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }

.hero-art { grid-column: 8 / span 5; position: relative; }

.hero-art figure { margin: 0; position: relative; overflow: hidden; }

.hero-art img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.04);
  transition: transform 1.6s var(--ease);
}

.hero-art:hover img { transform: scale(1.04); }

.stamp {
  position: absolute;
  left: -26px;
  bottom: 34px;
  width: 96px;
  height: 96px;
  border-radius: 50%;
  background: var(--clay);
  color: #fdf8ee;
  display: grid;
  place-content: center;
  text-align: center;
  font-family: var(--font-display);
  font-size: 12.5px;
  line-height: 1.5;
  letter-spacing: 0.1em;
  transform: rotate(-9deg);
  box-shadow: 0 10px 24px -12px rgba(23, 38, 31, 0.6);
}

.vert {
  writing-mode: vertical-rl;
  font-size: 11px;
  letter-spacing: 0.4em;
  color: var(--ink-3);
  text-transform: uppercase;
}

.hero-art .vert {
  position: absolute;
  right: -30px;
  top: 4px;
}

.hero-foot {
  margin-top: 54px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 10px 34px;
  font-size: 13px;
  color: var(--ink-3);
  letter-spacing: 0.09em;
}

.hero-foot span::before {
  content: "◦ ";
  color: var(--wheat);
}

/* ---------- 数据带 ---------- */
.stats { padding: 62px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--paper-2); }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px 34px;
}

.stat { border-left: 1px solid var(--line); padding-left: 22px; }

.stat b {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(38px, 4.4vw, 58px);
  font-weight: 400;
  line-height: 1;
  color: var(--ink);
}

.stat b i { font-style: normal; font-family: var(--font-body); font-size: 0.42em; color: var(--ink-3); margin-left: 6px; }

.stat p { margin: 12px 0 0; font-size: 13.5px; color: var(--ink-2); letter-spacing: 0.06em; }

/* ---------- 区块通用 ---------- */
.sec { padding: 88px 0; }
.sec.tight { padding: 62px 0; }
.sec.band { background: var(--paper-2); }
.sec.dark { background: var(--ink); color: var(--paper); }
.sec.dark .sec-kicker, .sec.dark .sec-note { color: rgba(247, 243, 234, 0.6); }
.sec.dark .rule { border-color: rgba(247, 243, 234, 0.24); }

.sec-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 46px;
}

.sec-kicker {
  font-family: var(--font-num);
  font-size: 12.5px;
  letter-spacing: 0.22em;
  color: var(--wheat);
  text-transform: uppercase;
  white-space: nowrap;
}

.sec-title {
  flex: 1;
  font-size: clamp(26px, 3.1vw, 40px);
  line-height: 1.24;
}

.sec-note {
  max-width: 22em;
  font-size: 14.5px;
  color: var(--ink-3);
  text-align: right;
}

.rule { border: 0; border-top: 2px solid var(--ink); margin: 0; }

/* ---------- 使命两栏 ---------- */
.mission {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 60px;
  align-items: start;
}

.mission-quote {
  font-family: var(--font-display);
  font-size: clamp(22px, 2.5vw, 32px);
  line-height: 1.6;
  color: var(--ink);
  padding-left: 26px;
  border-left: 3px solid var(--clay);
}

.mission-quote footer {
  margin-top: 22px;
  font-family: var(--font-body);
  font-size: 13.5px;
  letter-spacing: 0.14em;
  color: var(--ink-3);
}

.mission-body p { color: var(--ink-2); font-size: 15.5px; }

.pillars { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px 28px; margin-top: 28px; }

.pillar { padding-top: 14px; border-top: 1px solid var(--line); }

.pillar strong {
  display: block;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 17px;
  margin-bottom: 6px;
}

.pillar span { font-size: 13.5px; color: var(--ink-3); }

/* ---------- 项目卡片 ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 30px;
}

.card {
  grid-column: span 6;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  background: var(--paper);
  transition: transform 0.45s var(--ease), box-shadow 0.45s var(--ease), border-color 0.45s;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 26px 40px -30px rgba(23, 38, 31, 0.65);
  border-color: var(--ink-2);
}

.card.offset { margin-top: 46px; }

.card-media { position: relative; overflow: hidden; }

.card-media img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  transition: transform 1.2s var(--ease);
}

.card:hover .card-media img { transform: scale(1.06); }

.tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(247, 243, 234, 0.94);
  color: var(--ink);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  padding: 6px 12px;
  border-radius: 999px;
}

.tag.hot { background: var(--clay); color: #fdf8ee; }

.card-body { padding: 24px 26px 26px; display: flex; flex-direction: column; flex: 1; }

.card-body h3 { font-size: 22px; margin-bottom: 10px; }

.card-body .sub { font-size: 12px; letter-spacing: 0.2em; color: var(--wheat); text-transform: uppercase; margin-bottom: 14px; font-family: var(--font-num); }

.card-body p { font-size: 14.5px; color: var(--ink-2); flex: 1; }

.card-meta {
  display: flex;
  gap: 26px;
  margin: 18px 0 14px;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  color: var(--ink-3);
}

.card-meta b { font-family: var(--font-num); font-size: 18px; color: var(--ink); display: block; }

/* 进度条 */
.prog { height: 7px; background: var(--paper-3); border-radius: 0; overflow: hidden; }

.prog i {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--wheat), var(--jade));
  transition: width 1.4s var(--ease);
}

.prog-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 12.5px;
  color: var(--ink-3);
  margin: 10px 0 8px;
  letter-spacing: 0.04em;
}

.prog-row em { font-style: normal; font-family: var(--font-num); font-size: 15px; color: var(--clay); }

/* ---------- 透明度 ---------- */
.trans-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }

.donut-wrap { display: flex; align-items: center; gap: 34px; flex-wrap: wrap; }

.donut {
  position: relative;
  width: 226px;
  height: 226px;
  border-radius: 50%;
  background: conic-gradient(var(--jade) 0 78.4%, var(--wheat) 78.4% 88%, var(--clay) 88% 95.1%, var(--paper-3) 95.1% 100%);
}

.donut::after {
  content: "";
  position: absolute;
  inset: 34px;
  border-radius: 50%;
  background: var(--paper-2);
}

.donut-center {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  text-align: center;
  z-index: 2;
}

.donut-center b { font-family: var(--font-num); font-size: 34px; display: block; line-height: 1.1; }
.donut-center span { font-size: 12px; letter-spacing: 0.14em; color: var(--ink-3); }

.legend { list-style: none; margin: 0; padding: 0; font-size: 14px; }

.legend li { display: flex; align-items: center; gap: 10px; padding: 7px 0; border-bottom: 1px solid var(--line-soft); }

.legend i { width: 11px; height: 11px; flex: 0 0 11px; border-radius: 2px; }

.legend em { font-style: normal; margin-left: auto; font-family: var(--font-num); font-size: 16px; }

/* 承诺清单 */
.pledges { list-style: none; padding: 0; margin: 0; }

.pledges li { padding: 16px 0; border-bottom: 1px solid var(--line); display: flex; gap: 14px; font-size: 15px; color: var(--ink-2); }

.pledges li::before { content: "§"; color: var(--wheat); font-family: var(--font-num); }

/* ---------- 引用墙 ---------- */
.quotes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }

.quote { padding: 26px 0 0; border-top: 2px solid var(--clay); }

.quote p { font-family: var(--font-display); font-size: 17.5px; line-height: 1.72; }

.quote footer { font-size: 13px; color: var(--ink-3); letter-spacing: 0.1em; margin-top: 16px; }

/* ---------- 入口三连 ---------- */
.gates { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }

.gate { background: var(--paper); padding: 36px 30px; transition: background 0.4s, transform 0.4s var(--ease); }

.gate:hover { background: #fdfaf3; }

.gate em { font-family: var(--font-num); font-style: normal; font-size: 13px; letter-spacing: 0.2em; color: var(--wheat); }

.gate h3 { font-size: 24px; margin: 12px 0 10px; }

.gate p { font-size: 14.5px; color: var(--ink-2); margin-bottom: 20px; }

.gate .go { font-size: 13.5px; letter-spacing: 0.12em; border-bottom: 1px solid var(--ink); padding-bottom: 2px; }

/* ---------- 页头（内页） ---------- */
.page-head { padding: 62px 0 44px; border-bottom: 1px solid var(--line); }

.crumb { font-size: 12.5px; letter-spacing: 0.2em; color: var(--ink-3); text-transform: uppercase; margin-bottom: 18px; }

.page-head h1 { font-size: clamp(32px, 4.6vw, 58px); line-height: 1.14; margin-bottom: 18px; }

.page-head .lead { max-width: 40em; font-size: 16.5px; color: var(--ink-2); }

/* ---------- 筛选 ---------- */
.filters { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 34px; }

.chip {
  padding: 9px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  font-size: 13.5px;
  letter-spacing: 0.08em;
  color: var(--ink-2);
  cursor: pointer;
  font-family: var(--font-body);
  transition: all 0.28s;
}

.chip:hover { border-color: var(--ink-2); color: var(--ink); }
.chip.on { background: var(--ink); border-color: var(--ink); color: var(--paper); }

/* ---------- 项目详情展开 ---------- */
.more { border-top: 1px solid var(--line-soft); margin-top: 14px; }

.more summary {
  list-style: none;
  cursor: pointer;
  padding: 12px 0;
  font-size: 13.5px;
  letter-spacing: 0.1em;
  color: var(--jade);
  display: flex;
  align-items: center;
  gap: 8px;
}

.more summary::-webkit-details-marker { display: none; }
.more summary::before { content: "+"; font-family: var(--font-num); }
.more[open] summary::before { content: "−"; }

.more ul { margin: 0 0 12px; padding-left: 18px; font-size: 14px; color: var(--ink-2); }

.more ul li { margin-bottom: 6px; }

/* ---------- 捐赠表单 ---------- */
.donate-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: start; }

.panel {
  border: 1px solid var(--line);
  background: var(--paper);
  padding: 34px 32px;
}

.panel.band { background: var(--paper-2); }

.panel h2 { font-size: 26px; margin-bottom: 8px; }
.panel .hint { font-size: 14px; color: var(--ink-3); margin-bottom: 24px; }

.field { margin-bottom: 20px; }

.field label {
  display: block;
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--ink-2);
  margin-bottom: 9px;
}

.field input, .field select, .field textarea {
  width: 100%;
  padding: 13px 15px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: #fffdf8;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--ink);
  transition: border-color 0.25s, box-shadow 0.25s;
}

.field textarea { min-height: 92px; resize: vertical; }

.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--jade);
  box-shadow: 0 0 0 3px rgba(47, 107, 91, 0.12);
}

.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.notice {
  font-size: 12.5px;
  color: var(--ink-3);
  border-left: 2px solid var(--wheat);
  padding-left: 12px;
  margin-top: 18px;
  line-height: 1.7;
}

/* 表格 */
.table { width: 100%; border-collapse: collapse; font-size: 14px; }

.table th, .table td { text-align: left; padding: 13px 14px; border-bottom: 1px solid var(--line); }

.table th { font-size: 12px; letter-spacing: 0.14em; color: var(--ink-3); text-transform: uppercase; font-weight: 400; }

.table td.num { font-family: var(--font-num); font-size: 16px; }

/* 柱状图 */
.bars { display: flex; align-items: flex-end; gap: 22px; height: 236px; padding-top: 20px; }

.bar { flex: 1; display: flex; flex-direction: column; justify-content: flex-end; height: 100%; text-align: center; }

.bar i {
  display: block;
  height: 0;
  background: linear-gradient(180deg, var(--wheat-soft), var(--wheat));
  transition: height 1.3s var(--ease);
}

.bar:last-child i { background: linear-gradient(180deg, #dba28f, var(--clay)); }

.bar b { display: block; font-family: var(--font-num); font-size: 15px; margin-bottom: 8px; color: var(--ink); }

.bar foot { display: block; font-size: 12.5px; color: var(--ink-3); margin-top: 10px; letter-spacing: 0.06em; }

.mix-bars { display: grid; gap: 16px; }

.mix-row { display: grid; grid-template-columns: 96px 1fr 62px; gap: 16px; align-items: center; font-size: 14px; }

.mix-row .track { height: 9px; background: var(--paper-3); }

.mix-row .track i { display: block; height: 100%; width: 0; background: var(--jade); transition: width 1.2s var(--ease); }

.mix-row em { font-style: normal; font-family: var(--font-num); font-size: 16px; text-align: right; }

/* ---------- 活动页 ---------- */
.events { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }

.event {
  background: var(--paper);
  display: grid;
  grid-template-columns: 108px 1fr auto;
  gap: 26px;
  align-items: center;
  padding: 26px 28px;
  transition: background 0.35s;
}

.event:hover { background: #fdfaf3; }

.event .date { text-align: center; border-right: 1px solid var(--line); padding-right: 20px; }

.event .date b { display: block; font-family: var(--font-num); font-size: 40px; line-height: 1; }

.event .date span { font-size: 12px; letter-spacing: 0.16em; color: var(--ink-3); }

.event h3 { font-size: 21px; margin-bottom: 8px; }

.event .meta { font-size: 13.5px; color: var(--ink-3); display: flex; flex-wrap: wrap; gap: 8px 20px; }

.event .meta b { font-family: var(--font-num); font-size: 15px; color: var(--ink); }

.event .act { display: flex; flex-direction: column; gap: 8px; align-items: flex-end; }

.event .slots { font-size: 12.5px; color: var(--ink-3); letter-spacing: 0.06em; }

/* 标签页 */
.tabs { display: flex; gap: 6px; border-bottom: 1px solid var(--line); margin-bottom: 34px; flex-wrap: wrap; }

.tab {
  padding: 13px 22px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  font-family: var(--font-body);
  font-size: 14.5px;
  letter-spacing: 0.1em;
  color: var(--ink-3);
  cursor: pointer;
  transition: all 0.28s;
}

.tab:hover { color: var(--ink); }
.tab.on { color: var(--ink); border-bottom-color: var(--clay); }

.pane { display: none; }
.pane.on { display: block; animation: rise 0.55s var(--ease) both; }

/* 空状态 */
.empty {
  border: 1px dashed var(--line);
  padding: 34px;
  text-align: center;
  font-size: 14px;
  color: var(--ink-3);
  background: var(--paper-2);
}

/* 提示条 */
.toast {
  position: fixed;
  left: 50%;
  bottom: 34px;
  transform: translate(-50%, 20px);
  background: var(--ink);
  color: var(--paper);
  padding: 14px 26px;
  border-radius: 2px;
  font-size: 14.5px;
  letter-spacing: 0.06em;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s, transform 0.4s var(--ease);
  z-index: 200;
  max-width: min(90vw, 520px);
  text-align: center;
}

.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--ink); color: rgba(247, 243, 234, 0.82); padding: 66px 0 30px; }

.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; }

.site-footer h4 { font-family: var(--font-body); font-size: 12px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--wheat-soft); margin-bottom: 16px; }

.site-footer p, .site-footer li { font-size: 13.5px; line-height: 1.9; }

.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer a:hover { color: #fff; }

.foot-brand { font-family: var(--font-display); font-size: 26px; color: var(--paper); letter-spacing: 0.08em; margin-bottom: 12px; }

.foot-bottom {
  margin-top: 46px;
  padding-top: 22px;
  border-top: 1px solid rgba(247, 243, 234, 0.18);
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  justify-content: space-between;
  font-size: 12.5px;
  color: rgba(247, 243, 234, 0.55);
  letter-spacing: 0.08em;
}

/* ---------- 动画 ---------- */
@keyframes rise {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.9s var(--ease), transform 0.9s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .hero-copy { grid-column: 1 / span 12; }
  .hero-art { grid-column: 1 / span 12; margin-top: 40px; }
  .hero-art img { aspect-ratio: 16 / 10; }
  .hero-art .vert { right: auto; left: -26px; }
  .stamp { left: auto; right: 20px; bottom: -30px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .mission { grid-template-columns: 1fr; gap: 36px; }
  .trans-grid { grid-template-columns: 1fr; gap: 40px; }
  .quotes { grid-template-columns: 1fr; gap: 26px; }
  .gates { grid-template-columns: 1fr; }
  .donate-grid { grid-template-columns: 1fr; gap: 40px; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .event { grid-template-columns: 84px 1fr; }
  .event .act { grid-column: 2; align-items: flex-start; }
  .nav { display: none; }
  .nav.open {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    padding: 14px 28px 22px;
  }
  .nav.open a { padding: 12px 0; width: 100%; border-bottom: 1px solid var(--line-soft); }
  .menu-btn { display: block; }
  .header-cta { display: none; }
  .sec-head { flex-direction: column; align-items: flex-start; }
  .sec-note { text-align: left; }
}

@media (max-width: 900px) {
  #cover { grid-template-columns: 1fr !important; gap: 34px !important; padding-top: 44px !important; padding-bottom: 44px !important; }
  .bars { gap: 10px; height: 190px; }
  .bar b { font-size: 13.5px; }
  .bar foot { font-size: 11px; }
}

@media (max-width: 720px) {
  body { font-size: 15.5px; }
  .wrap { padding: 0 20px; }
  .card { grid-column: span 12; }
  .card.offset { margin-top: 0; }
  .field-row { grid-template-columns: 1fr; }
  .donut-wrap { justify-content: center; }
  .event { grid-template-columns: 1fr; gap: 16px; padding: 22px; }
  .event .date { text-align: left; border-right: 0; border-bottom: 1px solid var(--line); padding: 0 0 14px; display: flex; align-items: baseline; gap: 10px; }
  .event .act { grid-column: 1; }
  .foot-grid { grid-template-columns: 1fr; gap: 30px; }
  .mix-row { grid-template-columns: 76px 1fr 54px; }
  .stats-grid { grid-template-columns: 1fr; }
}

@media print {
  .site-header, .site-footer, .hero-actions, .toast, .menu-btn { display: none !important; }
  body { background: #fff; }
  .reveal { opacity: 1 !important; transform: none !important; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
  .reveal { opacity: 1; transform: none; }
}

.stat b.text { font-family: var(--font-body); font-size: clamp(20px, 2.4vw, 28px); letter-spacing: .08em; }