/* ==========================================================
   天华轻音社 - 椰树×千禧复古流媒体恶搞风格
   配色：纯黑底 + 亮黄/正红/天蓝/荧光绿
   字体：Impact, Arial Black, 微软雅黑加粗, SimHei
   ========================================================== */

:root {
  --black: #000000;
  --yellow: #FFE600;
  --red: #FF0000;
  --blue: #0099FF;
  --green: #00FF66;
  --white: #FFFFFF;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  background: var(--black);
  color: var(--white);
  font-family: 'Impact', 'Arial Black', '微软雅黑', 'SimHei', sans-serif;
  letter-spacing: 0.5px;
  overflow-x: hidden;
  scroll-behavior: smooth;
}

/* 紧凑拼贴，无现代留白 */
body { line-height: 1.1; }

/* ============== 通用色块 ============== */
.bg-yellow { background: var(--yellow); color: var(--black); }
.bg-red { background: var(--red); color: var(--white); }
.bg-blue { background: var(--blue); color: var(--white); }
.bg-green { background: var(--green); color: var(--black); }
.bg-black { background: var(--black); color: var(--white); }

.txt-yellow { color: var(--yellow); }
.txt-red { color: var(--red); }
.txt-blue { color: var(--blue); }
.txt-green { color: var(--green); }

/* ============== 闪烁动画 ============== */
@keyframes blink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}
.blink { animation: blink 0.8s steps(1) infinite; }

@keyframes blink-yellow {
  0%, 49% { background: var(--yellow); color: var(--black); }
  50%, 100% { background: var(--red); color: var(--white); }
}
.blink-tag { animation: blink-yellow 0.6s steps(1) infinite; padding: 2px 6px; font-weight: 900; }

/* ============== 跑马灯 ============== */
@keyframes marquee {
  0% { transform: translateX(100%); }
  100% { transform: translateX(-100%); }
}

/* ============== 3D 凸起按钮 ============== */
.btn-3d {
  display: inline-block;
  padding: 14px 36px;
  font-size: 22px;
  font-weight: 900;
  text-decoration: none;
  border: 4px solid var(--black);
  box-shadow: 6px 6px 0 var(--black);
  cursor: pointer;
  transition: transform 0.05s, box-shadow 0.05s;
  font-family: inherit;
}
.btn-3d:active { transform: translate(4px, 4px); box-shadow: 2px 2px 0 var(--black); }
.btn-yellow { background: var(--yellow); color: var(--black); }
.btn-red { background: var(--red); color: var(--white); }
.btn-green { background: var(--green); color: var(--black); }
.btn-blue { background: var(--blue); color: var(--white); }

/* ============== 年龄认证弹窗 ============== */
#age-gate {
  position: fixed; inset: 0; z-index: 9999;
  background: rgba(0,0,0,0.92);
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
}
#age-gate.hidden { display: none; }
.gate-box {
  width: 100%; max-width: 560px;
  background: var(--black);
  border: 6px solid var(--red);
  outline: 6px solid var(--yellow);
  padding: 24px 20px;
  text-align: center;
}
.gate-warning {
  background: var(--yellow);
  color: var(--black);
  font-size: 26px;
  font-weight: 900;
  padding: 8px;
  margin-bottom: 16px;
  letter-spacing: 1px;
}
.gate-title {
  font-size: 36px;
  color: var(--red);
  font-weight: 900;
  margin-bottom: 14px;
  text-shadow: 2px 2px 0 var(--white);
}
.gate-text {
  color: var(--white);
  font-size: 16px;
  margin-bottom: 8px;
  line-height: 1.4;
}
.gate-disclaimer {
  background: var(--blue);
  color: var(--white);
  padding: 8px;
  font-size: 13px;
  margin: 14px 0 20px;
  text-align: left;
  line-height: 1.5;
}
.gate-disclaimer strong { color: var(--yellow); }
.gate-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ============== 顶部导航与横幅 ============== */
.top-bar {
  background: var(--red);
  color: var(--yellow);
  padding: 6px 12px;
  font-size: 13px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 3px solid var(--yellow);
}
.top-bar a { color: var(--yellow); text-decoration: none; font-weight: bold; }
.top-bar a:hover { background: var(--yellow); color: var(--black); padding: 2px 4px; }

header.site-head {
  background: var(--black);
  border-bottom: 6px solid var(--yellow);
  padding: 14px 16px;
  text-align: center;
}
.logo-line {
  font-size: 38px;
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 8px;
}
.logo-line .tag-y {
  background: var(--yellow); color: var(--black);
  padding: 2px 8px; margin-right: 6px;
}
.logo-line .tag-r {
  background: var(--red); color: var(--white);
  padding: 2px 8px; margin-right: 6px;
}
.logo-line .club-name {
  color: var(--white);
  text-shadow: 3px 3px 0 var(--red);
}
.logo-sub {
  font-size: 16px;
  color: var(--green);
  background: var(--black);
  display: inline-block;
  padding: 4px 12px;
  border: 2px solid var(--green);
}

/* 跑马灯公告栏 */
.marquee-bar {
  background: var(--yellow);
  color: var(--black);
  padding: 8px 0;
  font-size: 18px;
  font-weight: 900;
  overflow: hidden;
  border-top: 3px solid var(--black);
  border-bottom: 3px solid var(--black);
  position: relative;
}
.marquee-track {
  display: inline-block;
  white-space: nowrap;
  animation: marquee 22s linear infinite;
  padding-left: 100%;
}
.marquee-track span { margin: 0 28px; }

/* 导航条 */
.nav-bar {
  background: var(--black);
  border-bottom: 4px solid var(--red);
  padding: 8px;
  display: flex;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}
.nav-bar a {
  background: var(--blue);
  color: var(--white);
  padding: 6px 14px;
  text-decoration: none;
  font-weight: 900;
  font-size: 15px;
  border: 2px solid var(--white);
}
.nav-bar a:hover { background: var(--yellow); color: var(--black); border-color: var(--black); }

/* ============== 区块通用 ============== */
.section {
  padding: 24px 16px;
  border-bottom: 4px solid var(--yellow);
}
.section-title {
  font-size: 30px;
  font-weight: 900;
  text-align: center;
  margin-bottom: 18px;
  background: var(--red);
  color: var(--yellow);
  padding: 8px;
  border: 4px solid var(--yellow);
  text-shadow: 2px 2px 0 var(--black);
}
.section-title .sub {
  font-size: 14px;
  color: var(--white);
  display: block;
  margin-top: 4px;
  text-shadow: none;
}

/* ============== 视频卡片网格 ============== */
.video-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
  max-width: 1400px;
  margin: 0 auto;
}
.video-card {
  background: var(--black);
  border: 3px solid var(--yellow);
  position: relative;
  cursor: pointer;
  transition: transform 0.1s;
}
.video-card:hover { transform: scale(1.02); border-color: var(--red); }
.video-thumb {
  width: 100%;
  aspect-ratio: 16/9;
  background: #1a1a1a;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.video-thumb img {
  width: 100%; height: 100%; object-fit: cover;
  filter: contrast(1.1) saturate(1.2);
}
.play-overlay {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: rgba(0,0,0,0.35);
}
.play-icon {
  width: 56px; height: 56px;
  background: var(--red);
  border: 4px solid var(--white);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px;
  color: var(--white);
}
.video-card:hover .play-icon { background: var(--yellow); color: var(--black); }

.video-duration {
  position: absolute;
  right: 4px; bottom: 4px;
  background: var(--yellow);
  color: var(--black);
  padding: 2px 6px;
  font-size: 13px;
  font-weight: 900;
  border: 2px solid var(--black);
}
.video-date {
  position: absolute;
  left: 4px; top: 4px;
  background: var(--black);
  color: var(--green);
  padding: 2px 6px;
  font-size: 11px;
  border: 1px solid var(--green);
}
.video-tag {
  position: absolute;
  left: 4px; bottom: 4px;
  background: var(--red);
  color: var(--white);
  padding: 2px 6px;
  font-size: 11px;
  font-weight: 900;
  border: 2px solid var(--white);
}
.video-title {
  padding: 6px 8px;
  background: var(--yellow);
  color: var(--black);
  font-weight: 900;
  font-size: 14px;
  line-height: 1.3;
  border-top: 3px solid var(--black);
  min-height: 50px;
}
.video-title .badge {
  display: inline-block;
  background: var(--red);
  color: var(--yellow);
  padding: 1px 5px;
  font-size: 11px;
  margin-right: 4px;
  border: 1px solid var(--black);
}

/* ============== 社员介绍 ============== */
.member-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 10px;
  max-width: 1400px;
  margin: 0 auto;
}
.member-card {
  background: var(--black);
  border: 3px solid var(--blue);
  text-align: center;
  padding: 10px 6px;
}
.member-card:hover { border-color: var(--green); }
.member-avatar {
  width: 100%;
  aspect-ratio: 1;
  background: #1a1a1a;
  margin-bottom: 8px;
  overflow: hidden;
}
.member-avatar img { width: 100%; height: 100%; object-fit: cover; }
.member-instrument {
  background: var(--red);
  color: var(--white);
  font-size: 12px;
  font-weight: 900;
  padding: 2px 4px;
  margin-bottom: 4px;
  border: 1px solid var(--white);
}
.member-name {
  background: var(--yellow);
  color: var(--black);
  font-size: 16px;
  font-weight: 900;
  padding: 2px 4px;
  margin-bottom: 4px;
}
.member-nickname {
  color: var(--green);
  font-size: 13px;
  margin-bottom: 4px;
}
.member-bio {
  color: var(--white);
  font-size: 11px;
  line-height: 1.4;
  padding: 4px;
  background: #0a0a0a;
  border-top: 1px solid var(--yellow);
}

/* ============== 演出日程 ============== */
.schedule-wrap {
  max-width: 900px;
  margin: 0 auto;
  background: repeating-linear-gradient(
    45deg,
    var(--yellow),
    var(--yellow) 18px,
    var(--black) 18px,
    var(--black) 36px
  );
  padding: 12px;
  border: 4px solid var(--red);
}
.schedule-list {
  background: var(--black);
  border: 2px solid var(--yellow);
}
.schedule-item {
  display: grid;
  grid-template-columns: 130px 1fr 1fr 1fr;
  gap: 0;
  border-bottom: 2px solid var(--yellow);
  align-items: stretch;
}
.schedule-item:last-child { border-bottom: none; }
.schedule-item > div {
  padding: 10px;
  font-weight: 900;
}
.s-date { background: var(--red); color: var(--white); text-align: center; }
.s-date .day { font-size: 22px; }
.s-date .time { font-size: 12px; color: var(--yellow); }
.s-event { background: var(--black); color: var(--yellow); }
.s-venue { background: var(--blue); color: var(--white); }
.s-note { background: var(--black); color: var(--green); }

.schedule-header {
  display: grid;
  grid-template-columns: 130px 1fr 1fr 1fr;
  background: var(--green);
  color: var(--black);
  font-weight: 900;
  border-bottom: 4px solid var(--black);
}
.schedule-header > div { padding: 8px; text-align: center; }

/* ============== 招新报名 ============== */
.recruit-wrap {
  max-width: 700px;
  margin: 0 auto;
  background: var(--black);
  border: 5px solid var(--yellow);
  padding: 20px;
}
.recruit-req {
  background: var(--red);
  color: var(--white);
  padding: 10px 14px;
  margin-bottom: 18px;
  border: 2px solid var(--yellow);
}
.recruit-req ul { list-style: none; padding-left: 0; }
.recruit-req li {
  padding: 3px 0;
  font-size: 14px;
}
.recruit-req li::before { content: '▶ '; color: var(--yellow); }
.recruit-deadline {
  background: var(--yellow);
  color: var(--black);
  font-weight: 900;
  padding: 6px;
  text-align: center;
  margin-bottom: 18px;
  font-size: 18px;
  border: 2px solid var(--red);
}

.form-row {
  margin-bottom: 14px;
}
.form-row label {
  display: block;
  background: var(--yellow);
  color: var(--black);
  padding: 4px 8px;
  font-weight: 900;
  font-size: 14px;
  margin-bottom: 4px;
  border: 2px solid var(--black);
}
.form-row label .req { color: var(--red); }
.form-row input,
.form-row select {
  width: 100%;
  background: var(--black);
  color: var(--yellow);
  border: 3px solid var(--yellow);
  padding: 10px;
  font-size: 16px;
  font-family: inherit;
  font-weight: bold;
}
.form-row input::placeholder { color: #888; }
.form-row input:focus,
.form-row select:focus { outline: none; border-color: var(--red); background: #0a0a0a; }

.form-submit { text-align: center; margin-top: 18px; }

.form-result {
  display: none;
  margin-top: 16px;
  padding: 14px;
  text-align: center;
  font-weight: 900;
  font-size: 18px;
  border: 4px solid var(--black);
}
.form-result.show { display: block; }
.form-result.success {
  background: var(--green);
  color: var(--black);
}
.form-result.error {
  background: var(--red);
  color: var(--white);
}

/* ============== 侧边悬浮恶搞广告 ============== */
.sidebar-ad {
  position: fixed;
  top: 200px;
  width: 180px;
  z-index: 100;
  border: 4px solid var(--black);
  box-shadow: 6px 6px 0 rgba(0,0,0,0.6);
}
.sidebar-ad.left { left: 8px; }
.sidebar-ad.right { right: 8px; }
.sidebar-ad.ad-yellow { background: var(--yellow); color: var(--black); }
.sidebar-ad.ad-red { background: var(--red); color: var(--white); }
.sidebar-ad.ad-green { background: var(--green); color: var(--black); }
.sidebar-ad.ad-blue { background: var(--blue); color: var(--white); }
.sidebar-ad .ad-title {
  font-size: 18px;
  font-weight: 900;
  padding: 6px;
  text-align: center;
  border-bottom: 3px solid var(--black);
}
.sidebar-ad .ad-text {
  padding: 8px;
  font-size: 14px;
  font-weight: bold;
  text-align: center;
  line-height: 1.4;
}
.sidebar-ad .ad-close {
  position: absolute;
  top: -4px; right: -4px;
  width: 24px; height: 24px;
  background: var(--black);
  color: var(--white);
  border: 2px solid var(--white);
  font-size: 14px;
  font-weight: 900;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.sidebar-ad a {
  color: inherit;
  text-decoration: none;
  display: block;
}

/* ============== 页脚 ============== */
footer {
  background: var(--red);
  color: var(--yellow);
  padding: 18px;
  text-align: center;
  border-top: 5px solid var(--yellow);
  font-size: 13px;
  line-height: 1.6;
}
footer a { color: var(--yellow); }
footer .foot-qq {
  font-size: 22px;
  font-weight: 900;
  background: var(--yellow);
  color: var(--black);
  padding: 4px 12px;
  display: inline-block;
  margin: 6px 0;
}

/* ============== 响应式 ============== */
@media (max-width: 1100px) {
  .video-grid { grid-template-columns: repeat(4, 1fr); }
  .member-grid { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 800px) {
  .video-grid { grid-template-columns: repeat(2, 1fr); }
  .member-grid { grid-template-columns: repeat(2, 1fr); }
  .logo-line { font-size: 26px; }
  .section-title { font-size: 22px; }
  .sidebar-ad { display: none; }
  .schedule-item,
  .schedule-header {
    grid-template-columns: 1fr;
  }
  .schedule-item > div { border-bottom: 1px solid #333; }
  .top-bar { flex-direction: column; gap: 4px; text-align: center; }
}

/* ============== BGM 控制按钮 ============== */
.bgm-toggle {
  position: fixed;
  bottom: 12px; right: 12px;
  z-index: 200;
  background: var(--black);
  color: var(--green);
  border: 3px solid var(--green);
  padding: 8px 12px;
  font-weight: 900;
  cursor: pointer;
  font-family: inherit;
  font-size: 13px;
}
.bgm-toggle:hover { background: var(--green); color: var(--black); }