/* ===== 湖北经济学院学生会官网 · 前台样式（清爽薄荷绿版） ===== */
:root {
  --teal: #0d9488;
  --teal-deep: #0f766e;
  --teal-bright: #14b8a6;
  --mint: #99f6e4;
  --amber: #f59e0b;
  --amber-soft: #fef3c7;
  --ink: #134e4a;
  --body: #2f4f4a;
  --muted: #6b8f89;
  --line: #d9ede8;
  --bg: #f4faf8;
  --card: #ffffff;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(13, 148, 136, .08);
  --shadow-lg: 0 20px 50px rgba(13, 148, 136, .16);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  color: var(--body);
  background: var(--bg);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; }
a { text-decoration: none; color: inherit; }
.container { width: min(1180px, 90%); margin: 0 auto; }
section { padding: 96px 0; }

/* ---------- 顶部导航（浅色清爽） ---------- */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; transition: background .3s, box-shadow .3s; }
.nav .container { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.nav-brand { display: flex; align-items: center; gap: 12px; }
.nav-brand img { width: 44px; height: 44px; flex: none; filter: drop-shadow(0 3px 8px rgba(13, 148, 136, .3)); }
.brand-text b { font-size: 16px; letter-spacing: 2px; display: block; line-height: 1.3; color: var(--ink); }
.brand-text span { font-size: 11px; color: var(--muted); letter-spacing: 3px; }
.nav-links { display: flex; gap: 6px; list-style: none; }
.nav-links a {
  color: var(--body); font-size: 15px; padding: 8px 16px;
  border-radius: 999px; transition: .25s; letter-spacing: 1px;
}
.nav-links a:hover, .nav-links a.active { background: rgba(20, 184, 166, .12); color: var(--teal-deep); }
.nav.scrolled {
  background: rgba(255, 255, 255, .88); backdrop-filter: blur(14px);
  box-shadow: 0 4px 24px rgba(13, 148, 136, .12);
}
.nav-toggle { display: none; background: none; border: 0; color: var(--teal-deep); font-size: 24px; cursor: pointer; }

/* ---------- Hero（浅色 + 实拍照片） ---------- */
.hero {
  min-height: 100vh; display: flex; align-items: center;
  background:
    radial-gradient(900px 500px at 90% -10%, rgba(153, 246, 228, .5), transparent 60%),
    radial-gradient(700px 500px at -10% 100%, rgba(252, 211, 77, .18), transparent 55%),
    linear-gradient(165deg, #ecfdf9 0%, #f4faf8 55%, #e6f7f3 100%);
  position: relative; overflow: hidden;
  padding: 150px 0 90px;
}
.hero::before {
  content: ""; position: absolute; right: -120px; top: -120px;
  width: 420px; height: 420px; border-radius: 50%;
  border: 60px solid rgba(20, 184, 166, .07);
}
.hero::after {
  content: "全心全意服务同学";
  position: absolute; left: -20px; bottom: 4%;
  font-size: clamp(60px, 9vw, 120px); font-weight: 800;
  color: rgba(13, 148, 136, .05); letter-spacing: 14px;
  white-space: nowrap; pointer-events: none;
}
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; position: relative; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid rgba(13, 148, 136, .35); color: var(--teal-deep);
  padding: 7px 18px; border-radius: 999px; font-size: 13px; letter-spacing: 2px;
  background: rgba(255, 255, 255, .7);
}
.hero-badge::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--amber); }
.hero h1 {
  font-size: clamp(40px, 6vw, 66px); font-weight: 800; letter-spacing: 6px;
  line-height: 1.25; margin: 26px 0 10px; color: var(--ink);
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(120deg, var(--teal-bright), var(--teal-deep));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub { font-size: clamp(17px, 2vw, 22px); letter-spacing: 10px; color: var(--teal-deep); font-weight: 500; }
.hero-desc { margin: 24px 0 36px; color: var(--muted); max-width: 540px; font-size: 16px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px; cursor: pointer;
  padding: 13px 32px; border-radius: 999px; font-size: 15px; letter-spacing: 2px;
  border: 1px solid transparent; transition: .25s; font-family: inherit;
}
.btn-gold {
  background: linear-gradient(135deg, var(--teal-bright), var(--teal-deep));
  color: #fff; box-shadow: 0 10px 24px rgba(13, 148, 136, .3);
}
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 16px 32px rgba(13, 148, 136, .4); }
.btn-ghost { border-color: rgba(13, 148, 136, .4); color: var(--teal-deep); background: rgba(255, 255, 255, .6); }
.btn-ghost:hover { background: rgba(20, 184, 166, .1); }

/* Hero 照片组合 */
.hero-visual { position: relative; }
.hero-photo {
  border-radius: 22px; overflow: hidden; box-shadow: var(--shadow-lg);
  border: 5px solid #fff;
}
.hero-photo.main { width: 88%; transform: rotate(1.5deg); }
.hero-photo.main img { display: block; width: 100%; height: 320px; object-fit: cover; }
.hero-photo.small {
  position: absolute; right: -6px; bottom: -34px; width: 46%;
  transform: rotate(-3deg);
}
.hero-photo.small img { display: block; width: 100%; height: 140px; object-fit: cover; }
.hero-photo .cap {
  position: absolute; left: 18px; bottom: 14px; color: #fff; font-size: 12.5px;
  letter-spacing: 2px; text-shadow: 0 2px 8px rgba(0, 0, 0, .5);
}
.hero-qq {
  position: absolute; left: -26px; bottom: -20px;
  background: #fff; border-radius: 16px; box-shadow: var(--shadow-lg);
  padding: 14px 22px; display: flex; align-items: center; gap: 14px;
  border: 1px solid var(--line);
}
.hero-qq img { width: 54px; height: 54px; border-radius: 8px; }
.hero-qq .t { font-size: 12px; color: var(--muted); letter-spacing: 1px; }
.hero-qq .n { font-size: 20px; font-weight: 800; color: var(--teal-deep); letter-spacing: 2px; }

/* ---------- 通用版块头 ---------- */
.sec-head { text-align: center; margin-bottom: 56px; }
.sec-kicker { color: var(--teal); letter-spacing: 5px; font-size: 13px; font-weight: 600; text-transform: uppercase; }
.sec-head h2 { font-size: clamp(28px, 3.4vw, 40px); letter-spacing: 4px; color: var(--ink); margin-top: 10px; font-weight: 800; }
.sec-head h2::after {
  content: ""; display: block; width: 52px; height: 4px; border-radius: 2px;
  background: linear-gradient(90deg, var(--amber), var(--teal-bright)); margin: 16px auto 0;
}
.sec-head p { color: var(--muted); max-width: 640px; margin: 16px auto 0; }

/* ---------- 关于我们 ---------- */
.about-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.about-text p { color: var(--body); margin-bottom: 14px; text-indent: 2em; }
.about-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 34px; }
.stat {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px 10px; text-align: center; box-shadow: var(--shadow); transition: .25s;
}
.stat:hover { transform: translateY(-4px); }
.stat b { font-size: 30px; color: var(--teal-deep); display: block; }
.stat b i { font-style: normal; color: var(--amber); font-size: 18px; }
.stat span { font-size: 13px; color: var(--muted); letter-spacing: 1px; }
.about-visual { position: relative; }
.about-photo { border-radius: 22px; overflow: hidden; border: 5px solid #fff; box-shadow: var(--shadow-lg); }
.about-photo img { display: block; width: 100%; height: 300px; object-fit: cover; }
.about-photo.sub { position: absolute; right: -10px; bottom: -30px; width: 48%; transform: rotate(2.5deg); }
.about-photo.sub img { height: 130px; }
.concept-card {
  margin-top: 56px; position: relative; border-radius: 22px; overflow: hidden;
  background: linear-gradient(150deg, var(--teal-deep), var(--teal) 60%, var(--teal-bright));
  color: #fff; padding: 40px 42px; box-shadow: var(--shadow-lg);
}
.concept-card::before {
  content: "“"; position: absolute; top: -30px; left: 18px;
  font-size: 160px; color: rgba(255, 255, 255, .18); font-family: Georgia, serif;
}
.concept-card h3 { font-size: 25px; letter-spacing: 3px; color: var(--amber-soft); margin-bottom: 14px; }
.concept-card p { color: rgba(255, 255, 255, .88); }
.concept-tags { display: flex; gap: 10px; margin-top: 24px; flex-wrap: wrap; }
.concept-tags span {
  border: 1px solid rgba(255, 255, 255, .4); border-radius: 999px;
  padding: 6px 16px; font-size: 13px; letter-spacing: 1px; color: #fff;
}

/* ---------- 部门 / 活动 · 左大图右列表 Showcase ---------- */
.dept-section { background: linear-gradient(180deg, var(--bg), #e9f7f3); }
.showcase { display: grid; grid-template-columns: 1.15fr .85fr; gap: 22px; align-items: stretch; }
.show-stage {
  position: relative; border-radius: 22px; overflow: hidden; min-height: 430px;
  display: flex; flex-direction: column; justify-content: flex-end;
  box-shadow: var(--shadow-lg); cursor: pointer;
  background: linear-gradient(140deg, var(--teal-deep), var(--teal) 55%, var(--teal-bright));
}
.stage-bg { position: absolute; inset: 0; background-size: cover; background-position: center; animation: bgIn .5s ease; }
@keyframes bgIn { from { opacity: 0; } to { opacity: 1; } }
.stage-shade {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,.02) 30%, rgba(7,52,48,.82));
}
.stage-shade.no-bg { background: linear-gradient(160deg, rgba(7,52,48,.08), rgba(7,52,48,.55)); }
.stage-info { position: relative; z-index: 1; padding: 30px 36px 34px; color: #fff; animation: stageIn .4s ease; }
@keyframes stageIn { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
.stage-eyebrow { display: flex; align-items: center; gap: 10px; font-size: 12px; letter-spacing: 3px; color: var(--mint); margin-bottom: 12px; }
.stage-icon { font-size: 24px; }
.act-type-pill { background: rgba(245, 158, 11, .9); color: #fff; border-radius: 999px; padding: 2px 12px; font-size: 11.5px; letter-spacing: 2px; }
.stage-no { color: rgba(255,255,255,.75); font-family: Georgia, serif; }
.stage-info h3 { font-size: clamp(24px, 3vw, 34px); letter-spacing: 3px; margin-bottom: 8px; }
.stage-short { color: var(--amber-soft); font-size: 14px; letter-spacing: 2px; margin-bottom: 14px; font-weight: 600; }
.stage-desc {
  color: rgba(255, 255, 255, .9); font-size: 14.5px; line-height: 1.85;
  display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical; overflow: hidden;
}
.stage-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.stage-tags span {
  border: 1px solid rgba(255, 255, 255, .45); border-radius: 999px;
  padding: 4px 14px; font-size: 12.5px; letter-spacing: 1px; color: #fff;
  background: rgba(255, 255, 255, .08);
}
.stage-more {
  margin-top: 22px; align-self: flex-start; border: 1px solid rgba(255, 255, 255, .6);
  background: rgba(255, 255, 255, .14); color: #fff; border-radius: 999px;
  padding: 9px 26px; font-size: 13.5px; letter-spacing: 2px; cursor: pointer;
  transition: .25s; font-family: inherit; backdrop-filter: blur(4px);
}
.stage-more:hover { background: #fff; color: var(--teal-deep); }
.stage-empty {
  display: grid; place-items: center; min-height: 200px; color: var(--muted);
  background: var(--card); border: 1px dashed var(--line); border-radius: 20px;
}

/* 右侧列表 */
.show-list {
  display: flex; flex-direction: column; gap: 12px;
  max-height: 470px; overflow-y: auto; padding: 4px 6px 4px 2px;
  scrollbar-width: thin; scrollbar-color: #b7e5dc transparent;
}
.show-list::-webkit-scrollbar { width: 6px; }
.show-list::-webkit-scrollbar-thumb { background: #b7e5dc; border-radius: 6px; }
.mini {
  position: relative; display: flex; align-items: center; gap: 14px;
  padding: 15px 18px; border-radius: 16px; border: 1px solid var(--line);
  background: var(--card); cursor: pointer; text-align: left;
  transition: transform .25s, box-shadow .25s, border-color .25s; overflow: hidden;
  font-family: inherit; flex: none;
}
.mini:hover { transform: translateX(4px); box-shadow: var(--shadow); border-color: rgba(20, 184, 166, .4); }
.mini.active { border-color: var(--teal-bright); box-shadow: 0 8px 24px rgba(13, 148, 136, .22); }
.mini.active::before {
  content: ""; position: absolute; left: 0; top: 14px; bottom: 14px; width: 4px;
  border-radius: 0 4px 4px 0; background: linear-gradient(180deg, var(--amber), var(--teal-bright));
}
.mini-bg { position: absolute; inset: 0; background-size: cover; background-position: center; }
.mini-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(7,52,48,.78), rgba(7,52,48,.35)); }
.mini-icon { font-size: 24px; position: relative; z-index: 1; }
.mini-no {
  position: relative; z-index: 1; font-size: 26px; font-weight: 800;
  font-family: Georgia, serif; color: var(--teal-bright); min-width: 40px;
}
.mini-text { position: relative; z-index: 1; flex: 1; min-width: 0; }
.mini-text b { display: block; font-size: 15.5px; color: var(--ink); letter-spacing: 1px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mini-text i { display: block; font-style: normal; font-size: 12.5px; color: var(--muted); letter-spacing: 1px; margin-top: 2px; }
.mini.has-bg .mini-text b, .mini.has-bg .mini-text i { color: #fff; }
.mini.has-bg .mini-text i { color: rgba(255, 255, 255, .75); }
.mini-arrow { position: relative; z-index: 1; color: var(--teal); font-size: 16px; }
.mini.active .mini-arrow { color: var(--amber); }

/* ---------- 品牌活动 ---------- */
.act-tabs { display: flex; justify-content: center; gap: 12px; margin-bottom: 44px; }
.act-tab {
  border: 1px solid var(--line); background: #fff; color: var(--muted);
  padding: 9px 26px; border-radius: 999px; cursor: pointer; font-size: 14px;
  letter-spacing: 2px; transition: .25s; font-family: inherit;
}
.act-tab.active { background: var(--teal); color: #fff; border-color: var(--teal); box-shadow: 0 8px 20px rgba(13, 148, 136, .28); }

/* ---------- 权益服务 ---------- */
.rights-section {
  background:
    radial-gradient(800px 400px at 100% 0%, rgba(153, 246, 228, .35), transparent 60%),
    linear-gradient(180deg, #e9f7f3, var(--bg));
}
.rights-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; align-items: start; }
.panel {
  background: var(--card); border: 1px solid var(--line); border-radius: 20px;
  padding: 34px 32px; box-shadow: var(--shadow);
}
.panel-title { display: flex; align-items: center; gap: 10px; color: var(--ink); font-size: 20px; letter-spacing: 2px; margin-bottom: 22px; }
.panel-title::before { content: ""; width: 5px; height: 22px; border-radius: 3px; background: linear-gradient(180deg, var(--amber), var(--teal-bright)); }

/* Q&A 手风琴 */
.qa-item { border-bottom: 1px solid var(--line); }
.qa-item:last-child { border-bottom: 0; }
.qa-q {
  width: 100%; background: none; border: 0; cursor: pointer; font-family: inherit;
  display: flex; justify-content: space-between; align-items: center; gap: 14px;
  padding: 18px 4px; font-size: 15.5px; color: var(--body); text-align: left; letter-spacing: .5px;
}
.qa-q:hover { color: var(--teal); }
.qa-q .arrow { flex: none; width: 26px; height: 26px; border-radius: 50%; border: 1px solid var(--line); display: grid; place-items: center; color: var(--teal); transition: .3s; font-size: 12px; }
.qa-item.open .qa-q { color: var(--teal-deep); font-weight: 700; }
.qa-item.open .arrow { transform: rotate(180deg); background: var(--teal); color: #fff; border-color: var(--teal); }
.qa-a { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.qa-a p { padding: 0 4px 20px; color: var(--muted); font-size: 14.5px; }

/* 反馈 tabs */
.fb-tabs { display: flex; gap: 10px; margin-bottom: 26px; background: var(--bg); padding: 6px; border-radius: 12px; }
.fb-tab {
  flex: 1; border: 0; background: transparent; padding: 10px; border-radius: 9px;
  cursor: pointer; color: var(--muted); font-size: 14.5px; letter-spacing: 2px;
  transition: .25s; font-family: inherit;
}
.fb-tab.active { background: #fff; color: var(--teal-deep); font-weight: 700; box-shadow: 0 4px 12px rgba(13, 148, 136, .12); }
.fb-pane { display: none; }
.fb-pane.active { display: block; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 13.5px; color: var(--body); margin-bottom: 7px; letter-spacing: 1px; }
.field label i { color: #e11d48; font-style: normal; }
.field input, .field select, .field textarea {
  width: 100%; border: 1px solid var(--line); border-radius: 10px; padding: 11px 14px;
  font-size: 14.5px; font-family: inherit; color: var(--body); background: #fafefd;
  transition: border-color .25s, box-shadow .25s;
}
.field textarea { resize: vertical; min-height: 110px; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--teal-bright); box-shadow: 0 0 0 3px rgba(20, 184, 166, .14); background: #fff;
}
.btn-primary {
  width: 100%; border: 0; background: linear-gradient(135deg, var(--teal-bright), var(--teal-deep));
  color: #fff; padding: 13px; border-radius: 12px; font-size: 15.5px; letter-spacing: 4px;
  cursor: pointer; transition: .25s; font-family: inherit;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 26px rgba(13, 148, 136, .32); }

.fb-result { display: none; margin-top: 24px; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
.fb-result.show { display: block; }
.fb-result-head {
  background: linear-gradient(135deg, var(--teal-deep), var(--teal-bright)); color: #fff;
  padding: 14px 20px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px;
}
.fb-result-head b { letter-spacing: 1px; font-size: 15px; }
.fb-result-body { padding: 20px; }
.fb-meta { font-size: 13px; color: var(--muted); margin-bottom: 12px; display: flex; gap: 18px; flex-wrap: wrap; }
.fb-reply-box { background: #ecfdf9; border-left: 4px solid var(--teal); border-radius: 8px; padding: 14px 16px; margin-top: 14px; font-size: 14.5px; color: #0f5c54; }
.fb-reply-box.empty { background: #fffbeb; border-left-color: var(--amber); color: #92610a; }
.status-pill { font-size: 12.5px; padding: 3px 14px; border-radius: 999px; letter-spacing: 1px; }
.status-pill.wait { background: #fef3c7; color: #92610a; }
.status-pill.doing { background: #cffafe; color: #0e7490; }
.status-pill.done { background: #d1fae5; color: #047857; }

.tip-box { display: none; margin-top: 18px; border-radius: 12px; padding: 16px 18px; font-size: 14.5px; }
.tip-box.show { display: block; }
.tip-box.ok { background: #ecfdf5; border: 1px solid #a7f3d0; color: #047857; }
.tip-box.err { background: #fff1f2; border: 1px solid #fecdd3; color: #be123c; }
.tip-box b { letter-spacing: 2px; }

/* ---------- 加入我们 ---------- */
.join {
  background:
    radial-gradient(700px 400px at 10% 0%, rgba(153, 246, 228, .2), transparent 60%),
    radial-gradient(600px 400px at 95% 100%, rgba(245, 158, 11, .14), transparent 55%),
    linear-gradient(150deg, #0b3f3a, var(--teal-deep) 60%, var(--teal));
  color: #fff; text-align: center;
}
.join h2 { font-size: clamp(30px, 4vw, 44px); letter-spacing: 6px; font-weight: 800; }
.join .sub { color: var(--mint); letter-spacing: 8px; margin: 12px 0 24px; font-size: 15px; }
.join p { color: rgba(255, 255, 255, .78); max-width: 620px; margin: 0 auto 12px; }
.join-qrs { display: flex; justify-content: center; gap: 28px; margin-top: 40px; flex-wrap: wrap; }
.qr-card {
  background: rgba(255, 255, 255, .97); border-radius: 18px; padding: 20px 26px;
  color: var(--body); width: 220px; box-shadow: 0 20px 50px rgba(0, 0, 0, .25);
  transition: .3s;
}
.qr-card:hover { transform: translateY(-6px); }
.qr-card img { width: 150px; height: 150px; object-fit: cover; border-radius: 12px; display: block; margin: 0 auto 12px; }
.qr-card b { color: var(--teal-deep); font-size: 15px; letter-spacing: 2px; display: block; }
.qr-card span { font-size: 12.5px; color: var(--muted); display: block; margin-top: 4px; }
.qr-card .num { font-size: 17px; font-weight: 800; color: var(--amber); letter-spacing: 2px; margin-top: 6px; display: block; }
.copy-btn {
  margin-top: 28px; border: 1px solid rgba(255, 255, 255, .45); background: none; color: #fff;
  padding: 10px 26px; border-radius: 999px; cursor: pointer; font-size: 13.5px; letter-spacing: 2px;
  transition: .25s; font-family: inherit;
}
.copy-btn:hover { background: rgba(255, 255, 255, .15); }

/* ---------- 页脚 ---------- */
footer { background: #0b3f3a; color: rgba(255, 255, 255, .6); padding: 46px 0 30px; font-size: 13.5px; }
.foot-grid { display: flex; justify-content: space-between; gap: 30px; flex-wrap: wrap; margin-bottom: 30px; }
.foot-brand { display: flex; gap: 14px; align-items: flex-start; }
.foot-brand img { width: 46px; height: 46px; }
.foot-grid b { color: #fff; letter-spacing: 2px; display: block; margin-bottom: 10px; font-size: 15px; }
.foot-bottom { border-top: 1px solid rgba(255, 255, 255, .12); padding-top: 22px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }
.foot-bottom a, .foot-grid a:hover { color: var(--mint); }

/* ---------- 弹窗 ---------- */
.modal-mask {
  position: fixed; inset: 0; background: rgba(11, 63, 58, .5); backdrop-filter: blur(4px);
  display: none; place-items: center; z-index: 200; padding: 20px;
}
.modal-mask.show { display: grid; }
.modal {
  background: #fff; border-radius: 20px; width: min(620px, 100%); max-height: 84vh;
  overflow: auto; padding: 38px 36px; position: relative;
  animation: pop .3s ease;
}
@keyframes pop { from { transform: translateY(24px) scale(.97); opacity: 0; } to { transform: none; opacity: 1; } }
.modal-close {
  position: absolute; top: 16px; right: 16px; width: 34px; height: 34px; border-radius: 50%;
  border: 1px solid var(--line); background: #fff; cursor: pointer; font-size: 16px; color: var(--muted); transition: .25s; z-index: 2;
}
.modal-close:hover { background: var(--teal); color: #fff; border-color: var(--teal); }
.modal-tag { color: var(--amber); font-size: 13px; letter-spacing: 3px; font-weight: 600; }
.modal h3 { color: var(--ink); font-size: 26px; letter-spacing: 2px; margin: 6px 0 16px; }
.modal p { color: var(--body); }
.modal .modal-img { border-radius: 14px; margin-bottom: 20px; max-height: 260px; width: 100%; object-fit: cover; }
.modal .tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.modal .tags span { background: #ecfdf9; color: var(--teal-deep); font-size: 13px; padding: 6px 16px; border-radius: 999px; letter-spacing: 1px; }

/* ---------- Toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: 40px; transform: translateX(-50%) translateY(80px);
  background: var(--teal-deep); color: #fff; padding: 12px 28px; border-radius: 999px;
  font-size: 14px; letter-spacing: 1px; opacity: 0; transition: .35s; z-index: 300;
  box-shadow: 0 14px 34px rgba(0, 0, 0, .3);
}
.toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }

/* ---------- 动效 ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- 活动风采 · 滑动照片墙 ---------- */
.gallery-section { padding-bottom: 40px; background: linear-gradient(180deg, var(--bg), #fff); }
.slider-wrap { position: relative; width: min(1180px, 90%); margin: 0 auto; }
.slider-track {
  display: flex; gap: 20px; overflow-x: auto; scroll-snap-type: x mandatory;
  padding: 10px 4px 26px; scrollbar-width: none; scroll-behavior: smooth;
}
.slider-track::-webkit-scrollbar { display: none; }
.slide {
  flex: 0 0 min(420px, 82vw); scroll-snap-align: center; cursor: zoom-in;
  border-radius: 18px; overflow: hidden; position: relative;
  border: 1px solid var(--line); box-shadow: var(--shadow);
  transition: transform .35s, box-shadow .35s; background: #fff;
}
.slide:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.slide img { width: 100%; height: 260px; object-fit: cover; display: block; }
.slide-cap {
  padding: 16px 20px;
}
.slide-cap b { display: block; color: var(--ink); font-size: 15.5px; letter-spacing: 1px; }
.slide-cap span { font-size: 13px; color: var(--muted); }
.slide .zoom-hint {
  position: absolute; top: 14px; right: 14px; background: rgba(11, 63, 58, .55);
  color: #fff; font-size: 12px; border-radius: 999px; padding: 4px 12px;
  letter-spacing: 1px; backdrop-filter: blur(4px); opacity: 0; transition: .3s;
}
.slide:hover .zoom-hint { opacity: 1; }
.slider-btn {
  position: absolute; top: 40%; transform: translateY(-50%); z-index: 5;
  width: 46px; height: 46px; border-radius: 50%; border: 1px solid var(--line);
  background: #fff; color: var(--teal-deep); font-size: 24px; cursor: pointer;
  box-shadow: var(--shadow); transition: .25s; line-height: 1;
}
.slider-btn:hover { background: var(--teal); color: #fff; border-color: var(--teal); }
.slider-btn.prev { left: -14px; }
.slider-btn.next { right: -14px; }
.slider-dots { display: flex; justify-content: center; gap: 8px; margin-top: 4px; }
.slider-dots button {
  width: 9px; height: 9px; border-radius: 999px; border: 0; cursor: pointer;
  background: #cde7e1; transition: .3s; padding: 0;
}
.slider-dots button.active { width: 26px; background: var(--teal); }

/* ---------- 组织动态 · 近期工作 ---------- */
.news-section { background: #fff; }
.news-list { max-width: 860px; margin: 0 auto; }
.news-item {
  background: var(--card); border: 1px solid var(--line); border-radius: 16px;
  margin-bottom: 16px; overflow: hidden; transition: .3s; box-shadow: var(--shadow);
}
.news-item:hover { border-color: rgba(20, 184, 166, .45); }
.news-item.open { border-color: var(--teal-bright); box-shadow: var(--shadow-lg); }
.news-head {
  width: 100%; background: none; border: 0; cursor: pointer; font-family: inherit;
  display: flex; align-items: center; gap: 18px; padding: 22px 26px; text-align: left;
}
.news-date {
  flex: none; width: 74px; text-align: center; border-right: 1px dashed var(--line);
  padding-right: 18px;
}
.news-date .d { font-size: 24px; font-weight: 800; color: var(--teal-deep); line-height: 1.1; }
.news-date .ym { font-size: 12px; color: var(--muted); letter-spacing: 1px; }
.news-head-main { flex: 1; min-width: 0; }
.news-head-main .tag {
  display: inline-block; font-size: 11.5px; color: var(--teal-deep);
  background: #ecfdf9; border: 1px solid #b7ece2; border-radius: 999px;
  padding: 2px 12px; letter-spacing: 1px; margin-bottom: 6px;
}
.news-head-main b { display: block; font-size: 16.5px; color: var(--ink); letter-spacing: .5px; }
.news-head-main p { font-size: 13.5px; color: var(--muted); margin-top: 4px; }
.news-arrow {
  flex: none; width: 30px; height: 30px; border-radius: 50%; border: 1px solid var(--line);
  display: grid; place-items: center; color: var(--teal); font-size: 13px; transition: .3s;
}
.news-item.open .news-arrow { transform: rotate(180deg); background: var(--teal); color: #fff; border-color: var(--teal); }
.news-body { max-height: 0; overflow: hidden; transition: max-height .4s ease; }
.news-body-inner {
  padding: 0 26px 24px 118px; color: var(--body); font-size: 14.5px;
}
.news-body-inner img { border-radius: 12px; margin-top: 12px; max-height: 260px; width: 100%; object-fit: cover; }

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
  .hero-grid, .about-grid, .rights-grid { grid-template-columns: 1fr; }
  .showcase { grid-template-columns: 1fr; }
  .show-stage { min-height: 330px; }
  .show-list {
    flex-direction: row; overflow-x: auto; max-height: none; gap: 10px;
    padding: 4px 2px 10px; scrollbar-width: none;
  }
  .show-list::-webkit-scrollbar { display: none; }
  .mini { flex: 0 0 240px; }
  .hero-visual { max-width: 480px; margin: 30px auto 0; width: 100%; }
  .hero-qq { left: 0; }
  .foot-grid > div { min-width: 180px; flex: 1 1 200px; }
}
@media (max-width: 680px) {
  section { padding: 64px 0; }
  .container { width: 92%; }
  .dept-grid, .act-grid, .about-stats, .form-row { grid-template-columns: 1fr; }
  .show-stage { min-height: 300px; }
  .stage-info { padding: 22px 20px 24px; }
  .stage-info h3 { letter-spacing: 2px; }
  .stage-desc { -webkit-line-clamp: 3; }
  .mini { flex: 0 0 210px; padding: 12px 14px; }
  .mini-text b { font-size: 14px; }
  .hero { padding: 120px 0 70px; }
  .hero h1 { letter-spacing: 2px; }
  .hero-sub { letter-spacing: 4px; }
  .hero::after { display: none; }
  .hero-photo.main img { height: 220px; }
  .hero-photo.main { width: 100%; transform: none; }
  .hero-photo.small { right: 8px; bottom: -28px; transform: none; }
  .nav-brand img { width: 36px; height: 36px; }
  .brand-text b { font-size: 14px; letter-spacing: 1px; }
  .brand-text span { font-size: 10px; letter-spacing: 1.5px; }
  .nav-links {
    position: fixed; top: 64px; right: 0; left: 0;
    background: rgba(255, 255, 255, .98); flex-direction: column; padding: 12px 16px;
    display: none; box-shadow: 0 20px 40px rgba(13, 148, 136, .18);
    max-height: calc(100vh - 64px); overflow-y: auto;
  }
  .nav-links a { padding: 12px 14px; border-bottom: 1px solid var(--line); border-radius: 0; }
  .nav-links a:last-child { border-bottom: 0; }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
  .nav .container { height: 64px; }
  .panel { padding: 26px 20px; }
  .modal { padding: 30px 22px; }
  .modal h3 { font-size: 21px; letter-spacing: 1px; }
  .about-photo.sub { display: none; }
  .slider-btn.prev { left: 2px; }
  .slider-btn.next { right: 2px; }
  .slider-btn { width: 40px; height: 40px; font-size: 20px; }
  .news-head { gap: 12px; padding: 18px 16px; }
  .news-date { width: 58px; padding-right: 12px; }
  .news-body-inner { padding: 0 16px 20px 16px; }
  .news-date .d { font-size: 20px; }
  .news-head-main b { font-size: 15px; }
  .concept-card { padding: 28px 22px; }
  .concept-card h3 { font-size: 20px; }
  .join h2 { letter-spacing: 2px; }
  .join .sub { letter-spacing: 3px; font-size: 13px; }
  .join-qrs { gap: 16px; }
  .qr-card { width: min(220px, 100%); }
  .foot-bottom { font-size: 12px; }
  .act-banner { height: 100px; }
  .act-banner.has-img { height: 150px; }
}
@media (max-width: 380px) {
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { justify-content: center; }
  .news-head { flex-wrap: wrap; }
  .news-arrow { order: 2; }
  .news-head-main { order: 1; flex: 1 1 100%; }
}