:root {
  --bg: #080d18;
  --bg-soft: #0d1424;
  --card: rgba(255, 255, 255, 0.075);
  --card-strong: rgba(255, 255, 255, 0.12);
  --text: #eef4ff;
  --muted: #9fb1ca;
  --line: rgba(255, 255, 255, 0.14);
  --accent: #7dd3fc;
  --accent-2: #c084fc;
  --accent-3: #34d399;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.38);
  --radius: 28px;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(125, 211, 252, 0.22), transparent 32rem),
    radial-gradient(circle at 80% 10%, rgba(192, 132, 252, 0.18), transparent 28rem),
    linear-gradient(180deg, #07101f 0%, #080d18 44%, #0b1020 100%);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  line-height: 1.7;
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, black, transparent 80%);
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
code {
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(255,255,255,0.08);
  border: 1px solid var(--line);
}
.page-glow {
  position: fixed; width: 38rem; height: 38rem; right: -18rem; top: 18rem; border-radius: 999px;
  background: rgba(52, 211, 153, 0.14); filter: blur(80px); pointer-events: none;
}
.site-header {
  position: sticky; top: 0; z-index: 20; width: min(var(--max), calc(100% - 32px));
  margin: 18px auto 0; padding: 12px 14px; display: flex; align-items: center; justify-content: space-between; gap: 18px;
  background: rgba(8, 13, 24, 0.72); border: 1px solid var(--line); border-radius: 999px;
  backdrop-filter: blur(18px); box-shadow: 0 16px 50px rgba(0,0,0,0.24);
}
.brand { display: inline-flex; align-items: center; gap: 12px; font-weight: 800; letter-spacing: 0.02em; }
.brand-logo {
  width: 44px; height: 44px; border-radius: 12px; object-fit: cover;
  box-shadow: 0 10px 22px rgba(0,0,0,0.24); border: 1px solid rgba(255,255,255,0.16);
}
.brand-text { font-size: 15px; }
.site-nav { display: flex; align-items: center; gap: 6px; }
.site-nav a { padding: 10px 14px; color: var(--muted); border-radius: 999px; font-size: 14px; transition: 0.22s ease; }
.site-nav a:hover, .site-nav a:focus-visible { color: var(--text); background: rgba(255,255,255,0.08); }
.menu-toggle { display: none; width: 42px; height: 42px; border: 0; border-radius: 999px; background: rgba(255,255,255,0.08); cursor: pointer; }
.menu-toggle span { display: block; width: 18px; height: 2px; margin: 4px auto; background: var(--text); border-radius: 99px; }
.section-shell { width: min(var(--max), calc(100% - 32px)); margin: 0 auto; }
.hero {
  min-height: calc(100vh - 84px); display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  align-items: center; gap: 44px; padding: 76px 0 56px;
}
.eyebrow { margin: 0 0 14px; color: var(--accent); font-size: 13px; font-weight: 800; letter-spacing: 0.16em; text-transform: uppercase; }
h1, h2, h3, p, ul { margin-top: 0; }
h1 { max-width: 780px; margin-bottom: 22px; font-size: clamp(42px, 7vw, 82px); line-height: 1.05; letter-spacing: -0.06em; }
h2 { margin-bottom: 18px; font-size: clamp(30px, 4vw, 48px); line-height: 1.12; letter-spacing: -0.04em; }
h3 { margin-bottom: 12px; font-size: 22px; }
.hero-lead, .section-head > p, .feature-copy p, .contact-card p, .info-card p, .work-card p, .join-list, .qr-note { color: var(--muted); }
.hero-lead { max-width: 720px; margin-bottom: 30px; font-size: 18px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
/* .hero-actions-1 { display: flex; align-items: center; gap:  13px; flex-wrap:  wrap; position: relative;  z-index: 1; } */
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 22px; border-radius: 999px; font-weight: 800; transition: transform 0.22s ease, background 0.22s ease, border 0.22s ease; }
.btn:hover { transform: translateY(-2px); }
.btn.primary { color: #07101f; background: linear-gradient(135deg, var(--accent), var(--accent-3)); }
.btn.ghost { border: 1px solid var(--line); background: rgba(255,255,255,0.06); }
.hero-card {
  position: relative; min-height: 520px; padding: 34px; display: flex; flex-direction: column; justify-content: flex-end; overflow: hidden;
  background:
    linear-gradient(145deg, rgba(255,255,255,0.13), rgba(255,255,255,0.04)),
    radial-gradient(circle at 20% 20%, rgba(125,211,252,0.26), transparent 14rem),
    radial-gradient(circle at 80% 30%, rgba(192,132,252,0.22), transparent 13rem);
  border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow);
}
.card-orbit { position: absolute; width: 360px; height: 360px; right: -88px; top: -88px; border: 1px solid rgba(255,255,255,0.18); border-radius: 50%; }
.card-orbit::before, .card-orbit::after { content: ""; position: absolute; inset: 52px; border: 1px solid rgba(255,255,255,0.14); border-radius: inherit; }
.card-orbit::after { inset: 104px; }
.profile-badge {
  position: absolute; top: 48px; left: 34px; width: 108px; height: 108px; display: grid; place-items: center;
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.18); border-radius: 30px;
  box-shadow: 0 20px 60px rgba(125,211,252,0.22); backdrop-filter: blur(10px);
}
.profile-badge img { width: 86px; height: 86px; border-radius: 22px; object-fit: cover; }
.card-kicker { margin-bottom: 10px; color: var(--accent); font-size: 13px; font-weight: 800; letter-spacing: 0.2em; }
.hero-card h2 { margin-bottom: 8px; }
.hero-card > p:not(.card-kicker) { color: var(--muted); }
.time-panel { margin-top: 24px; padding: 18px; display: flex; justify-content: space-between; gap: 18px; align-items: center; border: 1px solid var(--line); background: rgba(8,13,24,0.35); border-radius: 20px; }
.time-panel span { color: var(--muted); }
.time-panel strong { font-size: 24px; letter-spacing: 0.04em; }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 96px; }
.stats article { padding: 24px; background: var(--card); border: 1px solid var(--line); border-radius: 24px; }
.stats strong { display: block; color: var(--accent); font-size: 28px; line-height: 1; }
.stats span { color: var(--muted); }
.split, #works, #photos, .contact, .feature-strip, .join { padding: 96px 0; }
.section-title { margin-bottom: 30px; }
.about-grid, .work-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.info-card, .work-card, .contact-card, .qr-card { padding: 28px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); }
.info-card, .work-card { min-height: 250px; transition: transform 0.22s ease, background 0.22s ease, border-color 0.22s ease; }
.info-card:hover, .work-card:hover, .qr-card:hover { transform: translateY(-5px); background: var(--card-strong); border-color: rgba(125,211,252,0.35); }
.section-head { margin-bottom: 30px; display: flex; align-items: end; justify-content: space-between; gap: 36px; }
.section-head > p { max-width: 460px; margin-bottom: 20px; }
.tag { display: inline-flex; margin-bottom: 18px; padding: 6px 10px; color: #07101f; background: var(--accent); border-radius: 999px; font-size: 12px; font-weight: 900; }
.work-card a { display: inline-flex; margin-top: 18px; color: var(--accent); font-weight: 800; }
.feature-strip { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: stretch; }
.feature-copy, .media-list { padding: 34px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); }
.media-list { display: grid; gap: 14px; }
.media-list div { display: flex; align-items: center; gap: 12px; padding: 18px; color: var(--muted); background: rgba(255,255,255,0.045); border-radius: 20px; }
.media-list span { width: 10px; height: 10px; background: var(--accent-3); border-radius: 50%; box-shadow: 0 0 0 7px rgba(52,211,153,0.10); }
.photo-grid { display: grid; grid-template-columns: 1.2fr 0.8fr 0.8fr 1.2fr; gap: 16px; }
/* .photo-grid figure {
  position: relative; min-height: 260px; margin: 0; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(125,211,252,0.24), rgba(192,132,252,0.16)), linear-gradient(180deg, rgba(255,255,255,0.1), rgba(255,255,255,0.03));
}
.photo-grid figure:nth-child(2) { margin-top: 46px; background: linear-gradient(135deg, rgba(52,211,153,0.24), rgba(125,211,252,0.13)), linear-gradient(180deg, rgba(255,255,255,0.1), rgba(255,255,255,0.03)); }
.photo-grid figure:nth-child(3) { margin-top: 24px; background: linear-gradient(135deg, rgba(192,132,252,0.28), rgba(125,211,252,0.13)), linear-gradient(180deg, rgba(255,255,255,0.1), rgba(255,255,255,0.03)); } */

/* .photo-grid figure.photo-card {
  position: relative;
  min-height: 260px;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);

  background-image:
    linear-gradient(rgba(0,0,0,.15), rgba(0,0,0,.45)),
    var(--img);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;

  user-select: none;
  -webkit-user-drag: none;
  cursor: default;
} */

.photo-grid figure.photo-card:nth-child(2) {
  margin-top: 46px;
}

.photo-grid figure.photo-card:nth-child(3) {
  margin-top: 24px;
}

.photo-grid figure.photo-card span {
  position: absolute;
  left: 18px;
  bottom: 16px;
  padding: 8px 12px;
  color: #fff;
  background: rgba(8,13,24,0.55);
  border: 1px solid var(--line);
  border-radius: 999px;
  backdrop-filter: blur(10px);
  font-size: 18px;
  font-weight: 800;
  z-index: 2;
}

.photo-grid figure.photo-card::after {
  content: "www.qijincheng.cn";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,.22);
  font-size: 22px;
  font-weight: 700;
  transform: rotate(-25deg);
  pointer-events: none;
  z-index: 1;
}
.photo-grid span { position: absolute; left: 20px; bottom: 18px; padding: 8px 12px; background: rgba(8,13,24,0.55); border: 1px solid var(--line); border-radius: 999px; backdrop-filter: blur(10px); font-weight: 800; }
.join-grid { display: grid; grid-template-columns: 1fr 430px; gap: 20px; align-items: stretch; }
.join-copy { min-height: unset; }
.join-list { padding-left: 20px; margin-bottom: 0; }
.qr-card { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 18px; transition: transform 0.22s ease, background 0.22s ease, border-color 0.22s ease; }
.qr-image { width: min(100%, 320px); border-radius: 24px; border: 1px solid rgba(255,255,255,0.18); background: white; }
.qr-note { text-align: center; margin-bottom: 0; }
.contact-card {
  display: grid; grid-template-columns: 1fr auto; gap: 28px; align-items: center; padding: 42px;
  background: linear-gradient(135deg, rgba(125,211,252,0.14), rgba(192,132,252,0.10)), var(--card);
}
.contact-card p { max-width: 720px; margin-bottom: 0; }
.contact-links { display: grid; gap: 10px; }
.contact-links a { min-width: 150px; padding: 12px 18px; text-align: center; background: rgba(255,255,255,0.08); border: 1px solid var(--line); border-radius: 999px; font-weight: 800; }
.site-footer { width: min(var(--max), calc(100% - 32px)); margin: 0 auto; padding: 38px 0 54px; display: flex; justify-content: space-between; gap: 20px; color: var(--muted); border-top: 1px solid var(--line); }
.music-widget {
  position: fixed; right: 18px; bottom: 18px; z-index: 30; width: min(360px, calc(100% - 24px)); padding: 14px;
  display: grid; grid-template-columns: 54px 1fr; gap: 12px 14px; align-items: center;
  background: rgba(8,13,24,0.88); border: 1px solid var(--line); border-radius: 22px; backdrop-filter: blur(16px); box-shadow: 0 18px 42px rgba(0,0,0,0.34);
}
.music-toggle-btn {
  width: 54px; height: 54px; border: 0; border-radius: 18px; cursor: pointer; color: #07101f;
  background: linear-gradient(135deg, var(--accent), var(--accent-3)); font-size: 18px; font-weight: 900;
}
.music-meta { align-self: center; }
.music-meta strong { display: block; font-size: 15px; }
.music-meta span { color: var(--muted); font-size: 13px; }
.music-volume { grid-column: 1 / -1; display: grid; grid-template-columns: auto 1fr; gap: 12px; align-items: center; color: var(--muted); font-size: 13px; }
.music-volume input { width: 100%; }
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.65s ease, transform 0.65s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
@media (max-width: 960px) {
  .join-grid { grid-template-columns: 1fr; }
}
@media (max-width: 880px) {
  .site-header { border-radius: 24px; }
  .menu-toggle { display: block; }
  .site-nav {
    position: absolute; left: 0; right: 0; top: calc(100% + 10px); display: none; padding: 12px;
    flex-direction: column; align-items: stretch; background: rgba(8, 13, 24, 0.94); border: 1px solid var(--line); border-radius: 22px; backdrop-filter: blur(18px);
  }
  .site-nav.is-open { display: flex; }
  .site-nav a { text-align: center; }
  .hero, .feature-strip, .contact-card { grid-template-columns: 1fr; }
  .hero { min-height: auto; padding-top: 64px; }
  .hero-card { min-height: 420px; }
  .stats, .about-grid, .work-grid, .photo-grid { grid-template-columns: 1fr 1fr; }
  .section-head { display: block; }
  .photo-grid figure:nth-child(n) { margin-top: 0; }
  .contact-links { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .brand-text { display: none; }
  .hero { gap: 28px; }
  .hero-lead { font-size: 16px; }
  .stats, .about-grid, .work-grid, .photo-grid { grid-template-columns: 1fr; }
  .hero-card, .info-card, .work-card, .feature-copy, .media-list, .contact-card, .qr-card, .music-widget { border-radius: 22px; }
  .site-footer { display: block; }
  .music-widget { right: 12px; bottom: 12px; }
}
/* 音乐盒子隐藏按钮 */
.music-hide-btn {
    position: absolute;
    right: 8px;
    top: 6px;
    width: 22px;
    height: 22px;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.12);
    color: #f4d49a;
    cursor: pointer;
    font-size: 16px;
    line-height: 20px;
    z-index: 2;
}

.music-hide-btn:hover {
    background: rgba(244, 212, 154, 0.25);
}

/* 让音乐盒子可以滑出隐藏 */
.music-widget {
    transition: transform 0.35s ease, opacity 0.35s ease;
}

/* 隐藏状态：向右滑出屏幕 */
.music-widget.music-hidden {
    transform: translateX(calc(100% + 24px));
    opacity: 0;
    pointer-events: none;
}

/* 贴边展开按钮 */
.music-show-tab {
    position: fixed;
    right: 0;
    bottom: 110px;
    width: 34px;
    height: 58px;
    border: none;
    border-radius: 14px 0 0 14px;
    background: rgba(18, 18, 24, 0.92);
    color: #f4d49a;
    font-size: 22px;
    cursor: pointer;
    z-index: 9999;
    display: none;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
    border-left: 1px solid rgba(244, 212, 154, 0.35);
    border-top: 1px solid rgba(244, 212, 154, 0.35);
    border-bottom: 1px solid rgba(244, 212, 154, 0.35);
}

.music-show-tab:hover {
    background: rgba(52, 37, 26, 0.96);
}
/* 图片处理 */
/* .photo-card {
  position: relative;
  height: 220px;
  border-radius: 18px;
  overflow: hidden;
  background-image:
    linear-gradient(rgba(0,0,0,.15), rgba(0,0,0,.45)),
    var(--img);
  background-size: cover;
  background-position: center;
  user-select: none;
  -webkit-user-drag: none;
  cursor: default;
}

.photo-card span {
  position: absolute;
  left: 18px;
  bottom: 16px;
  color: #fff;
  font-size: 18px;
  font-weight: 600;
  z-index: 2;
}

/* 半透明水印 */
/* .photo-card::after {
  content: "www.qijincheng.cn";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,.22);
  font-size: 22px;
  font-weight: 700;
  transform: rotate(-25deg);
  pointer-events: none;
  z-index: 1;
}  */

/* 图片处理，数据收回css版本 */
.photo-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 0.8fr 1.2fr;
  gap: 16px;
}

.photo-grid figure.photo-card {
  position: relative;
  min-height: 260px;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);

  background-image:
    linear-gradient(rgba(0,0,0,.15), rgba(0,0,0,.45)),
    var(--photo);

  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;

  user-select: none;
  -webkit-user-drag: none;
  cursor: default;
}

/* 注意：这里的路径是相对于css的 */
.photo-card.photo-1 {
  --photo: url("../img/p/dm-01.jpg");
}

.photo-card.photo-2 {
  --photo: url("../img/p/dm-02.jpg");
}

.photo-card.photo-3 {
  --photo: url("../img/site-icon.png");
}

.photo-card.photo-4 {
  --photo: url("../img/p/rj-01.png");
}

.photo-grid figure.photo-card:nth-child(2) {
  margin-top: 46px;
}

.photo-grid figure.photo-card:nth-child(3) {
  margin-top: 24px;
}

.photo-grid figure.photo-card span {
  position: absolute;
  left: 18px;
  bottom: 16px;
  padding: 8px 12px;
  color: #fff;
  background: rgba(8,13,24,0.55);
  border: 1px solid var(--line);
  border-radius: 999px;
  backdrop-filter: blur(10px);
  font-size: 18px;
  font-weight: 800;
  z-index: 2;
}

.photo-grid figure.photo-card::after {
  content: "www.qijincheng.cn";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,.22);
  font-size: 22px;
  font-weight: 700;
  transform: rotate(-25deg);
  pointer-events: none;
  z-index: 1;
}