/*
 * concerts.css - 演唱会 overview (concerts.html) and one concert (concert.html).
 * Loaded after css/section-page.css.
 *
 * Every concert has its own colours (concert.theme in data/concerts.json): js/concerts.js
 * puts them on <body> (single concert) or on each card (overview) as
 *   --c-bg --c-surface --c-text --c-accent --c-accent2   and   --c-*-rgb triplets,
 * plus data-concert-tone / data-tone = light | dark. The defaults below are the site purple.
 */

body[data-page="concerts"],
.concert-card {
  --c-bg: rgb(11, 9, 19);            --c-bg-rgb: 11, 9, 19;
  --c-surface: rgb(23, 15, 34);      --c-surface-rgb: 23, 15, 34;
  --c-text: rgb(251, 247, 255);      --c-text-rgb: 251, 247, 255;
  --c-accent: rgb(186, 134, 255);    --c-accent-rgb: 186, 134, 255;
  --c-accent2: rgb(216, 180, 255);   --c-accent2-rgb: 216, 180, 255;
}

.concerts-page .section-shell { width: min(1080px, 100%); }

/* the beta site keeps the section closed: only its notice shows */
html[data-channel="beta"] [data-dev-only] { display: none !important; }

/* ---------- buttons (both pages, in the concert's colours) ---------- */
.concert-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.concert-button {
  appearance: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border: 1px solid rgba(var(--c-accent-rgb), .4);
  border-radius: 999px;
  background: rgba(var(--c-accent-rgb), .1);
  color: var(--c-text);
  font: inherit;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .06em;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition:
    transform var(--dur-s) var(--ease-out),
    background-color var(--dur-s) var(--ease-out),
    border-color var(--dur-s) var(--ease-out),
    box-shadow var(--dur-s) var(--ease-out);
}
.concert-button .icon { font-size: 15px; transition: transform var(--dur-s) var(--ease-out); }
.concert-button.is-primary {
  border-color: transparent;
  background: linear-gradient(135deg, var(--c-accent), rgba(var(--c-accent-rgb), .74));
  color: #fff;
  box-shadow: 0 10px 24px rgba(var(--c-accent-rgb), .28);
}
.concert-soon {
  padding: 2px 7px;
  border-radius: 999px;
  background: rgba(var(--c-text-rgb), .1);
  color: inherit;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: .04em;
  opacity: .8;
}
.concert-button.is-primary .concert-soon { background: rgba(255, 255, 255, .22); opacity: 1; }
@media (hover: hover) {
  .concert-button:hover { transform: scale(1.04); background-color: rgba(var(--c-accent-rgb), .2); border-color: rgba(var(--c-accent-rgb), .7); }
  .concert-button.is-primary:hover { box-shadow: 0 14px 30px rgba(var(--c-accent-rgb), .4); }
  .concert-button:hover .icon { transform: scale(1.12); }
}
.concert-button:active { transform: scale(.96); }

/* =========================================================
   Overview: one card per concert
   ========================================================= */
.concert-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 34px;
}
.concert-grid > .top-skeleton { min-height: 340px; border-radius: 22px; }

.concert-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 340px;
  overflow: hidden;
  border: 1px solid rgba(var(--c-accent-rgb), .22);
  border-radius: 22px;
  background: #120c1c;
  color: #fbf7ff;
  text-decoration: none;
  isolation: isolate;
  box-shadow: 0 22px 60px rgba(0, 0, 0, .28);
  transition:
    transform var(--dur-m) var(--ease-out),
    border-color var(--dur-m) var(--ease-out),
    box-shadow var(--dur-m) var(--ease-out);
}
.concert-card:first-child,
.concert-grid > .top-skeleton:first-child { grid-column: span 2; }

.concert-card-cover {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.02);
  transition: transform var(--dur-xl) var(--ease-out), opacity var(--dur-l) var(--ease-out);
}
.concert-card::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(180deg, rgba(9, 8, 18, .1) 0%, rgba(9, 8, 18, 0) 22%, rgba(9, 8, 18, .72) 52%, rgba(9, 8, 18, .97) 78%);
}

/* no cover yet: the concert's colours and its name */
.concert-card.no-cover {
  background:
    radial-gradient(circle at 25% 15%, rgba(var(--c-accent2-rgb), .38), transparent 46%),
    radial-gradient(circle at 85% 85%, rgba(var(--c-accent-rgb), .42), transparent 52%),
    var(--c-bg);
}
.concert-card.no-cover::before { background: linear-gradient(180deg, transparent 40%, rgba(var(--c-bg-rgb), .85) 100%); }
.concert-card.no-cover[data-tone="light"] { color: var(--c-text); }
.concert-card-mark {
  position: absolute;
  top: 16%;
  left: 0;
  right: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  color: rgba(var(--c-accent-rgb), .55);
  pointer-events: none;
}
.concert-card-mark .icon { font-size: 54px; animation: concertFlutter 3.2s ease-in-out infinite alternate; }
.concert-card-mark b { font-family: "Noto Serif SC", "Songti SC", serif; font-size: 44px; font-weight: 700; opacity: .7; }

.concert-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 18px 20px 0;
}
.concert-card-index,
.concert-badge {
  padding: 4px 10px;
  border: 1px solid rgba(var(--c-accent2-rgb), .4);
  border-radius: 999px;
  background: rgba(17, 10, 28, .55);
  color: #fbf7ff;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.concert-card-index { font-family: Georgia, "Noto Serif SC", serif; font-size: 13px; letter-spacing: .1em; }
.concert-badge { font-size: 10px; letter-spacing: .08em; }

.concert-card-body { margin-top: auto; padding: 20px; }
.concert-card-series {
  color: var(--c-accent);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .2em;
}
/* light concerts keep their deeper colour for light pages; on the dark card use the soft one */
.concert-card[data-tone="light"]:not(.no-cover) .concert-card-series { color: var(--c-accent2); }
.concert-card-title {
  margin: 8px 0 4px;
  font-family: "Noto Serif SC", "Songti SC", serif;
  font-size: clamp(24px, 2.6vw, 32px);
  font-weight: 500;
  line-height: 1.2;
}
/* titles open with 《: pull its built-in left space back so the text lines up */
.concert-card-title { text-indent: -.45em; }
.concert-card-title small { display: block; margin-top: 4px; text-indent: 0; font-size: .5em; opacity: .8; }
.concert-card:first-child .concert-card-title { font-size: clamp(28px, 3.6vw, 42px); }
.concert-card-english { opacity: .62; font-size: 10px; letter-spacing: .28em; }
.concert-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  margin-top: 14px;
  font-size: 12px;
  opacity: .8;
}
.concert-card-meta span { display: inline-flex; align-items: center; gap: 5px; }
.concert-card-meta .icon { color: var(--c-accent); }
.concert-card-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .06em;
}
.concert-card-more .icon { transition: transform var(--dur-s) var(--ease-out); }

.concert-card:focus-visible { border-color: rgba(var(--c-accent-rgb), .7); }
.concert-card:active { transform: scale(.985); }
@media (hover: hover) {
  .concert-card:hover {
    transform: translateY(-5px);
    border-color: rgba(var(--c-accent-rgb), .65);
    box-shadow: 0 28px 70px rgba(var(--c-accent-rgb), .3);
  }
  .concert-card:hover .concert-card-cover { transform: scale(1.07); }
  .concert-card:hover .concert-card-more .icon { transform: translateX(4px); }
}

/* =========================================================
   One concert (concert.html), in the concert's colours
   ========================================================= */
body[data-view="detail"] {
  color: var(--c-text);
  background:
    radial-gradient(55% 32% at 0% 8%, rgba(var(--c-accent2-rgb), .2), transparent 70%),
    radial-gradient(45% 30% at 100% 26%, rgba(var(--c-accent-rgb), .14), transparent 70%),
    radial-gradient(60% 34% at 6% 78%, rgba(var(--c-accent2-rgb), .14), transparent 70%),
    radial-gradient(50% 30% at 100% 96%, rgba(var(--c-accent-rgb), .12), transparent 70%),
    var(--c-bg);
  transition: color var(--dur-l) var(--ease-out);
}
body[data-concert-tone="light"] .top-back {
  border-color: rgba(var(--c-accent-rgb), .35);
  background: rgba(255, 255, 255, .72);
  color: var(--c-text);
}

#concertDetail > .top-skeleton { min-height: 260px; margin-top: 30px; border-radius: 22px; }

/* ---------- 演唱会 / 名称 + 切换演唱会 ---------- */
.concert-crumbs {
  position: relative;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 12px;
  animation: top-fade-in var(--dur-m) var(--ease-out) both;
}
.concert-crumbs nav { display: flex; align-items: center; gap: 8px; color: rgba(var(--c-text-rgb), .6); }
.concert-crumbs nav a { color: inherit; text-decoration: none; transition: color var(--dur-s) var(--ease-out); }
.concert-crumbs nav a:hover { color: var(--c-accent); }
.concert-crumbs nav b { color: var(--c-text); font-weight: 600; }

.concert-switch { position: relative; }
.concert-switch-button {
  appearance: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border: 1px solid rgba(var(--c-accent-rgb), .3);
  border-radius: 999px;
  background: rgba(var(--c-surface-rgb), .6);
  color: var(--c-text);
  font: inherit;
  font-size: 12px;
  cursor: pointer;
  transition: transform var(--dur-s) var(--ease-out), border-color var(--dur-s) var(--ease-out);
}
.concert-switch-button .icon { transition: transform var(--dur-m) var(--ease-out); }
.concert-switch-button[aria-expanded="true"] .icon { transform: rotate(180deg); }
.concert-switch-button:hover { border-color: rgba(var(--c-accent-rgb), .65); }
.concert-switch-button:active { transform: scale(.96); }
.concert-switch-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  display: grid;
  min-width: 240px;
  padding: 6px;
  border: 1px solid rgba(var(--c-accent-rgb), .25);
  border-radius: 16px;
  background: rgba(var(--c-surface-rgb), .97);
  box-shadow: 0 20px 50px rgba(0, 0, 0, .25);
  opacity: 0;
  transform: translateY(-6px) scale(.98);
  transform-origin: top right;
  transition: opacity var(--dur-s) var(--ease-out), transform var(--dur-s) var(--ease-out);
}
.concert-switch-menu.is-open { opacity: 1; transform: none; }
.concert-switch-menu a {
  display: grid;
  grid-template-columns: 10px 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 11px;
  color: var(--c-text);
  text-decoration: none;
  transition: background-color var(--dur-s) var(--ease-out);
}
.concert-switch-menu a:hover,
.concert-switch-menu a[aria-current="page"] { background: rgba(var(--c-accent-rgb), .12); }
.concert-switch-menu i { width: 10px; height: 10px; border-radius: 50%; }
.concert-switch-menu small { color: rgba(var(--c-text-rgb), .55); font-size: 11px; }

/* ---------- hero: record sleeve, facts, polaroid ---------- */
.concert-hero {
  --album: clamp(210px, 25vw, 290px);
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 28px;
  margin-top: 26px;
}

.concert-album {
  position: relative;
  width: var(--album);
  aspect-ratio: 1;
  margin-right: calc(var(--album) * .36);
  animation: top-scale-in var(--dur-l) var(--ease-out) both;
}
.concert-sleeve {
  position: relative;
  z-index: 2;
  width: 100%;
  height: 100%;
  overflow: hidden;
  border: 1px solid rgba(var(--c-accent-rgb), .2);
  border-radius: 8px;
  background:
    radial-gradient(circle at 30% 25%, rgba(var(--c-accent2-rgb), .45), transparent 55%),
    radial-gradient(circle at 75% 80%, rgba(var(--c-accent-rgb), .3), transparent 55%),
    var(--c-surface);
  box-shadow: 0 24px 50px rgba(0, 0, 0, .28);
}
body[data-concert-tone="light"] .concert-sleeve { box-shadow: 0 22px 46px rgba(var(--c-accent-rgb), .18); }
.concert-sleeve img { width: 100%; height: 100%; object-fit: cover; display: block; }
.concert-sleeve-art {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--c-accent);
}
.concert-sleeve-art .icon { font-size: calc(var(--album) * .3); animation: concertFlutter 3s ease-in-out infinite alternate; }
.concert-sleeve-art b {
  font-family: "Noto Serif SC", "Songti SC", serif;
  font-size: calc(var(--album) * .22);
  font-weight: 700;
  line-height: 1.1;
  text-align: center;
}

/* the record slides out of its sleeve, then turns */
.concert-vinyl {
  position: absolute;
  top: 4%;
  left: 38%;
  z-index: 1;
  width: 92%;
  aspect-ratio: 1;
  animation: concertVinylOut 1s var(--ease-out) .25s both;
  transition: left var(--dur-xl) var(--ease-out);
}
.concert-vinyl span {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background:
    radial-gradient(circle, var(--c-accent) 0 14%, rgba(255, 255, 255, .85) 14.5% 15.5%, transparent 16%),
    conic-gradient(from 20deg, transparent 0 10%, rgba(255, 255, 255, .16) 14%, transparent 20% 60%, rgba(255, 255, 255, .12) 64%, transparent 70%),
    repeating-radial-gradient(circle, #121214 0 1.5px, #1d1d21 1.5px 3px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, .35);
  animation: concertSpin 9s linear infinite;
}
body[data-concert-tone="light"] .concert-vinyl span {
  background:
    radial-gradient(circle, var(--c-accent) 0 14%, #fff 14.5% 15.5%, transparent 16%),
    conic-gradient(from 20deg, transparent 0 10%, rgba(255, 255, 255, .7) 14%, transparent 20% 60%, rgba(255, 255, 255, .6) 64%, transparent 70%),
    repeating-radial-gradient(circle, rgba(236, 240, 246, .95) 0 1.5px, rgba(214, 222, 232, .95) 1.5px 3px);
  box-shadow: 0 16px 36px rgba(var(--c-accent-rgb), .16), inset 0 0 0 1px rgba(255, 255, 255, .8);
}
.concert-tonearm {
  position: absolute;
  top: -6%;
  left: 108%;
  z-index: 3;
  width: 22%;
  overflow: visible;
  fill: rgba(var(--c-text-rgb), .16);
  stroke: rgba(var(--c-text-rgb), .55);
  stroke-width: 3.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  transform-origin: 73% 12%;
  animation: concertArmIn .8s var(--ease-out) .9s both;
}
.concert-tonearm path { fill: none; }
@media (hover: hover) {
  .concert-hero:hover .concert-vinyl { left: 46%; }
}

.concert-hero-copy { min-width: 0; }
.concert-hero-copy > * { animation: top-rise-in var(--dur-l) var(--ease-out) both; }
.concert-hero-copy > :nth-child(2) { animation-delay: calc(1 * var(--stagger)); }
.concert-hero-copy > :nth-child(3) { animation-delay: calc(2 * var(--stagger)); }
.concert-hero-copy > :nth-child(4) { animation-delay: calc(3 * var(--stagger)); }
.concert-hero-copy > :nth-child(5) { animation-delay: calc(4 * var(--stagger)); }
.concert-hero-copy > :nth-child(6) { animation-delay: calc(5 * var(--stagger)); }

.concert-tagline {
  margin: 0 0 6px;
  color: rgba(var(--c-accent-rgb), .85);
  font-family: "Segoe Script", "Brush Script MT", "Snell Roundhand", "Apple Chancery", cursive;
  font-size: clamp(15px, 1.6vw, 20px);
  font-style: italic;
  transform: rotate(-2deg);
  transform-origin: left center;
}
.concert-title {
  margin: 0;
  color: var(--c-accent);
  font-family: "Noto Serif SC", "Songti SC", serif;
  font-size: clamp(30px, 4.2vw, 50px);
  font-weight: 700;
  line-height: 1.15;
}
.concert-title { text-indent: -.45em; }
.concert-title span { margin-left: .12em; font-size: .78em; }
.concert-english { margin: 6px 0 0; color: rgba(var(--c-text-rgb), .55); font-size: 11px; letter-spacing: .3em; }
.concert-facts {
  display: grid;
  gap: 8px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}
.concert-facts li { display: flex; align-items: center; gap: 9px; font-size: 13px; color: rgba(var(--c-text-rgb), .85); }
.concert-facts .icon { color: var(--c-accent); font-size: 15px; }
.concert-summary { margin: 16px 0 0; max-width: 520px; color: rgba(var(--c-text-rgb), .66); font-size: 13px; line-height: 1.85; }

.concert-shows { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.concert-shows button {
  appearance: none;
  min-width: 64px;
  padding: 8px 16px;
  border: 1px solid rgba(var(--c-accent-rgb), .3);
  border-radius: 10px;
  background: rgba(var(--c-surface-rgb), .7);
  color: var(--c-text);
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: transform var(--dur-s) var(--ease-out), background-color var(--dur-m) var(--ease-out), color var(--dur-m) var(--ease-out), box-shadow var(--dur-m) var(--ease-out);
}
.concert-shows button.is-active {
  border-color: transparent;
  background: var(--c-accent);
  color: #fff;
  box-shadow: 0 8px 20px rgba(var(--c-accent-rgb), .3);
}
@media (hover: hover) { .concert-shows button:hover { transform: translateY(-2px); } }
.concert-shows button:active { transform: scale(.94); }

.concert-polaroid {
  position: relative;
  width: 170px;
  margin: 0;
  padding: 10px 10px 34px;
  border-radius: 4px;
  background: #fff;
  box-shadow: 0 18px 40px rgba(0, 0, 0, .22);
  transform: rotate(5deg);
  animation: concertPolaroidIn .8s var(--ease-out) .35s both;
  transition: transform var(--dur-m) var(--ease-out);
}
.concert-polaroid img { display: block; width: 100%; aspect-ratio: 4 / 5; object-fit: cover; }
.concert-tape {
  position: absolute;
  top: -11px;
  left: 50%;
  width: 74px;
  height: 22px;
  margin-left: -37px;
  background: rgba(var(--c-accent2-rgb), .6);
  transform: rotate(-5deg);
}
@media (hover: hover) { .concert-polaroid:hover { transform: rotate(1deg) translateY(-4px); } }

/* ---------- 演出回顾 / 人气舞台 / 观众感想 ---------- */
.concert-tabs {
  position: relative;
  display: flex;
  justify-content: center;
  gap: clamp(20px, 6vw, 56px);
  margin-top: 34px;
  border-bottom: 1px solid rgba(var(--c-accent-rgb), .16);
  animation: top-fade-in var(--dur-l) var(--ease-out) .2s both;
}
.concert-tabs a {
  padding: 10px 2px 12px;
  color: rgba(var(--c-text-rgb), .6);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: color var(--dur-m) var(--ease-out);
}
.concert-tabs a.is-active,
.concert-tabs a:hover { color: var(--c-accent); }
.concert-tabs-bar {
  position: absolute;
  left: 0;
  bottom: -1px;
  height: 2px;
  width: 0;
  border-radius: 2px;
  background: var(--c-accent);
  transition: transform var(--dur-l) var(--ease-out), width var(--dur-l) var(--ease-out);
}

.concert-banner {
  margin: 22px 0 0;
  overflow: hidden;
  border-radius: 22px;
  aspect-ratio: 21 / 8;
  background: rgba(var(--c-accent-rgb), .12);
  box-shadow: 0 24px 60px rgba(0, 0, 0, .18);
  animation: top-rise-in var(--dur-l) var(--ease-out) .25s both;
}
.concert-banner img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* ---------- sections ---------- */
.concert-section {
  margin-top: 50px;
  scroll-margin-top: 96px;
  animation: top-rise-in var(--dur-l) var(--ease-out) .3s both;
}
.concert-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}
.concert-head h2 {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0;
  font-family: "Noto Serif SC", "Songti SC", serif;
  font-size: 22px;
  font-weight: 700;
}
.concert-head h2 .icon { color: var(--c-accent); font-size: 22px; animation: concertFlutter 3s ease-in-out infinite alternate; }
.concert-head-meta { color: rgba(var(--c-text-rgb), .6); font-size: 12px; }
.concert-more {
  appearance: none;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 2px;
  border: 0;
  background: none;
  color: var(--c-accent);
  font: inherit;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}
.concert-more .icon { transition: transform var(--dur-s) var(--ease-out); }
.concert-more:hover .icon { transform: translateX(3px); }
.concert-more[aria-expanded="true"]:hover .icon { transform: translateY(-2px); }

.concert-empty {
  padding: 30px 24px;
  border: 1px dashed rgba(var(--c-accent-rgb), .32);
  border-radius: 18px;
  background: rgba(var(--c-surface-rgb), .4);
  color: rgba(var(--c-text-rgb), .62);
  font-size: 13px;
  line-height: 1.8;
  text-align: center;
  animation: top-fade-in var(--dur-m) var(--ease-out) both;
}
.concert-empty strong { display: block; color: var(--c-text); font-size: 15px; font-weight: 600; }

/* ---------- setlist cards ---------- */
.song-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.song-card {
  display: grid;
  grid-template-columns: auto 88px minmax(0, 1fr);
  align-items: center;
  gap: 14px 18px;
  padding: 18px 20px;
  border: 1px solid rgba(var(--c-accent-rgb), .18);
  border-radius: 18px;
  background: rgba(var(--c-surface-rgb), .78);
  box-shadow: 0 12px 30px rgba(0, 0, 0, .12);
  transition: transform var(--dur-m) var(--ease-out), border-color var(--dur-m) var(--ease-out), box-shadow var(--dur-m) var(--ease-out);
}
body[data-concert-tone="light"] .song-card { box-shadow: 0 12px 30px rgba(var(--c-accent-rgb), .08); }
@media (hover: hover) {
  .song-card:hover { transform: translateY(-3px); border-color: rgba(var(--c-accent-rgb), .45); box-shadow: 0 18px 40px rgba(var(--c-accent-rgb), .16); }
}
.song-card-no {
  min-width: 60px;
  color: var(--c-accent);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 46px;
  font-style: italic;
  line-height: 1;
}
.song-card-look {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  width: 88px;
  height: 88px;
  padding: 0;
  overflow: hidden;
  border: 1px solid rgba(var(--c-accent-rgb), .2);
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(var(--c-accent2-rgb), .3), rgba(var(--c-accent-rgb), .14));
  color: var(--c-accent);
  font: inherit;
}
button.song-card-look { cursor: zoom-in; transition: transform var(--dur-s) var(--ease-out); }
button.song-card-look:hover { transform: scale(1.05); }
button.song-card-look:active { transform: scale(.95); }
.song-card-look img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.song-card-look.is-empty .icon { font-size: 30px; }
.song-card-look.is-empty span { color: rgba(var(--c-text-rgb), .5); font-size: 10px; }
.song-card-count {
  position: absolute;
  right: 5px;
  bottom: 5px;
  padding: 1px 6px;
  border-radius: 999px;
  background: rgba(0, 0, 0, .55);
  color: #fff;
  font-size: 10px;
}
.song-card-info { min-width: 0; }
.song-card-title { margin: 0; font-size: 16px; font-weight: 700; line-height: 1.4; }
.song-card-by { margin: 4px 0 0; color: rgba(var(--c-text-rgb), .6); font-size: 12px; }
.song-card-note { margin: 4px 0 0; color: rgba(var(--c-text-rgb), .6); font-size: 12px; line-height: 1.6; }
.song-card-links { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 12px; margin-top: 10px; }
.song-card-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--c-accent);
  font-size: 12px;
  font-weight: 700;
  text-decoration: none;
}
.song-card-link .icon { transition: transform var(--dur-s) var(--ease-out); }
.song-card-link:hover .icon { transform: translateX(3px); }
.song-card-link.is-extra { font-weight: 500; opacity: .85; }
.song-card-pending { color: rgba(var(--c-text-rgb), .42); font-size: 12px; }
.song-audio { grid-column: 1 / -1; }

/* ---------- favourite stage ranking (投票即将开放 until voting opens) ---------- */
.concert-seg {
  display: inline-flex;
  padding: 3px;
  border: 1px solid rgba(var(--c-accent-rgb), .25);
  border-radius: 999px;
  background: rgba(var(--c-surface-rgb), .6);
}
.concert-seg button {
  appearance: none;
  padding: 5px 14px;
  border: 0;
  border-radius: 999px;
  background: none;
  color: rgba(var(--c-text-rgb), .65);
  font: inherit;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color var(--dur-m) var(--ease-out), color var(--dur-m) var(--ease-out), transform var(--dur-s) var(--ease-out);
}
.concert-seg button.is-active { background: var(--c-accent); color: #fff; }
.concert-seg button:active { transform: scale(.94); }

.concert-rank {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}
.rank-card {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 18px;
  border: 1px solid rgba(var(--c-accent-rgb), .18);
  border-radius: 18px;
  background: rgba(var(--c-surface-rgb), .78);
}
.rank-1 { border-color: rgba(var(--c-accent-rgb), .45); }
.rank-crown {
  position: absolute;
  top: -12px;
  left: 14px;
  color: var(--c-accent);
  font-size: 22px;
  transform: rotate(-14deg);
  animation: concertCrown 2.6s ease-in-out infinite alternate;
}
.rank-no {
  color: var(--c-accent);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 44px;
  font-style: italic;
  line-height: 1;
}
.rank-2 .rank-no, .rank-3 .rank-no { opacity: .75; }
.rank-thumb {
  display: grid;
  flex: none;
  place-items: center;
  width: 54px;
  height: 54px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(var(--c-accent2-rgb), .3), rgba(var(--c-accent-rgb), .14));
  color: var(--c-accent);
  font-size: 24px;
}
.rank-copy { display: grid; gap: 3px; min-width: 0; }
.rank-copy b { color: rgba(var(--c-text-rgb), .55); font-size: 14px; }
.rank-copy small { color: rgba(var(--c-text-rgb), .4); font-size: 12px; }
.rank-soon {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin: 2px 0 0;
  color: rgba(var(--c-text-rgb), .6);
  font-size: 12px;
  text-align: center;
}
.rank-soon .icon { color: var(--c-accent); flex: none; }

.concert-vote {
  display: flex;
  align-items: center;
  gap: 22px;
  margin-top: 16px;
  padding: 20px 26px;
  border: 1px solid rgba(var(--c-accent-rgb), .2);
  border-radius: 20px;
  background: linear-gradient(100deg, rgba(var(--c-accent2-rgb), .26), rgba(var(--c-accent-rgb), .12));
}
.concert-vote-art { position: relative; flex: none; animation: concertFloat 3s ease-in-out infinite alternate; }
.concert-vote-letter {
  position: relative;
  display: block;
  width: 62px;
  height: 42px;
  border: 1.5px solid rgba(var(--c-accent-rgb), .5);
  border-radius: 7px;
  background: #fff;
  transform: rotate(-8deg);
}
.concert-vote-letter::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 6px 6px 0 0;
  background: rgba(var(--c-accent-rgb), .22);
  clip-path: polygon(0 0, 100% 0, 50% 62%);
}
.concert-vote-heart { position: absolute; top: -10px; right: -12px; color: var(--c-accent); font-size: 20px; }
.concert-vote-copy { display: grid; gap: 4px; flex: 1; margin: 0; }
.concert-vote-copy b { font-family: "Noto Serif SC", "Songti SC", serif; font-size: 20px; font-weight: 700; }
.concert-vote-copy small { color: rgba(var(--c-text-rgb), .6); font-size: 12px; }

/* ---------- recap video ---------- */
.concert-recap {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 21 / 8;
  border-radius: 22px;
  background:
    radial-gradient(circle at 30% 30%, rgba(var(--c-accent2-rgb), .5), transparent 55%),
    radial-gradient(circle at 80% 70%, rgba(var(--c-accent-rgb), .5), transparent 55%),
    #1b1424;
  color: #fff;
  text-decoration: none;
  isolation: isolate;
}
.concert-recap-bg {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--dur-xl) var(--ease-out), opacity var(--dur-l) var(--ease-out);
}
.concert-recap::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(90deg, rgba(10, 6, 18, .7), rgba(10, 6, 18, .1) 60%);
}
.concert-recap-play {
  position: absolute;
  top: 50%;
  left: 50%;
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  margin: -32px 0 0 -32px;
  border: 1.5px solid rgba(255, 255, 255, .7);
  border-radius: 50%;
  background: rgba(255, 255, 255, .18);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: transform var(--dur-m) var(--ease-spring), background-color var(--dur-m) var(--ease-out);
}
.concert-recap-play svg { width: 26px; height: 26px; margin-left: 3px; }
.concert-recap-copy { position: absolute; left: 26px; bottom: 22px; display: grid; gap: 4px; }
.concert-recap-copy b { font-size: 20px; }
.concert-recap-copy small { opacity: .8; font-size: 12px; }
@media (hover: hover) {
  .concert-recap:hover .concert-recap-bg { transform: scale(1.05); }
  .concert-recap:hover .concert-recap-play { transform: scale(1.12); background-color: rgba(var(--c-accent-rgb), .55); }
}
.concert-recap:active .concert-recap-play { transform: scale(.94); }
.concert-links { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }

/* ---------- reflections ---------- */
.reflections { columns: 2 300px; column-gap: 14px; }
.reflection {
  break-inside: avoid;
  margin: 0 0 14px;
  padding: 20px 22px;
  border: 1px solid rgba(var(--c-accent-rgb), .18);
  border-radius: 18px;
  background:
    radial-gradient(circle at 90% 0, rgba(var(--c-accent-rgb), .12), transparent 40%),
    rgba(var(--c-surface-rgb), .78);
}
.reflection p { margin: 0; color: rgba(var(--c-text-rgb), .9); font-size: 13px; line-height: 1.9; white-space: pre-line; }
.reflection footer { display: flex; justify-content: space-between; gap: 10px; margin-top: 12px; color: rgba(var(--c-text-rgb), .55); font-size: 11px; }
.reflection footer strong { color: var(--c-accent); font-weight: 600; }

/* ---------- prev / next concert ---------- */
.concert-pager {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 60px;
}
.concert-pager a {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 20px;
  border: 1px solid rgba(var(--c-accent-rgb), .2);
  border-radius: 18px;
  background: rgba(var(--c-surface-rgb), .7);
  color: var(--c-text);
  text-decoration: none;
  transition: transform var(--dur-m) var(--ease-out), border-color var(--dur-m) var(--ease-out);
}
.concert-pager .is-next { grid-column: 2; text-align: right; }
.concert-pager span { color: rgba(var(--c-text-rgb), .55); font-size: 11px; letter-spacing: .1em; }
.concert-pager strong { font-family: "Noto Serif SC", "Songti SC", serif; font-size: 18px; font-weight: 600; }
@media (hover: hover) { .concert-pager a:hover { transform: translateY(-3px); border-color: rgba(var(--c-accent-rgb), .55); } }
.concert-pager a:active { transform: scale(.97); }

/* ---------- look lightbox ---------- */
.concert-lightbox {
  position: fixed;
  inset: 0;
  z-index: 9000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(8, 5, 15, .86);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.concert-lightbox[data-state="closed"] { display: none; }
.concert-lightbox-panel {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  width: min(760px, 100%);
  max-height: 100%;
}
.concert-lightbox-stage {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: min(74vh, 900px);
}
.concert-lightbox-stage img {
  max-width: 100%;
  max-height: 100%;
  border-radius: 14px;
  object-fit: contain;
  box-shadow: 0 30px 90px rgba(0, 0, 0, .55);
}
.concert-lightbox-caption {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px 14px;
  color: rgba(239, 230, 248, .8);
  font-size: 13px;
  text-align: center;
}
.concert-lightbox-caption strong { color: #fff; font-family: "Noto Serif SC", "Songti SC", serif; font-size: 16px; font-weight: 500; }
.concert-lightbox-close,
.concert-lightbox-nav {
  position: absolute;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid rgba(216, 180, 255, .32);
  border-radius: 50%;
  background: rgba(23, 15, 34, .78);
  color: #fff;
  font-size: 18px;
  cursor: pointer;
  transition: transform var(--dur-s) var(--ease-out), background-color var(--dur-s) var(--ease-out);
}
.concert-lightbox-close { top: -6px; right: -6px; z-index: 2; }
.concert-lightbox-nav { top: 50%; margin-top: -21px; }
.concert-lightbox-prev { left: -58px; }
.concert-lightbox-next { right: -58px; }
@media (hover: hover) {
  .concert-lightbox-close:hover,
  .concert-lightbox-nav:hover { transform: scale(1.08); background-color: rgba(var(--c-accent-rgb), .55); }
}
.concert-lightbox-close:active,
.concert-lightbox-nav:active { transform: scale(.92); }

/* ---------- small notice ("即将开放") ---------- */
.concert-toast {
  position: fixed;
  left: 50%;
  bottom: 34px;
  z-index: 9100;
  max-width: calc(100vw - 32px);
  padding: 11px 20px;
  border: 1px solid rgba(var(--c-accent-rgb), .45);
  border-radius: 999px;
  background: rgba(23, 15, 34, .94);
  color: #f3eaff;
  font-size: 13px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, .4);
  transform: translate(-50%, 14px);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-m) var(--ease-out), transform var(--dur-m) var(--ease-out);
}
.concert-toast.is-shown { opacity: 1; transform: translate(-50%, 0); }

/* ---------- audio clip (js/audio-clip.js) ---------- */
.audio-clip {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 440px;
  padding: 7px 14px 7px 7px;
  border: 1px solid rgba(var(--c-accent-rgb), .3);
  border-radius: 999px;
  background: rgba(var(--c-surface-rgb), .7);
  animation: top-fade-in var(--dur-m) var(--ease-out) both;
}
.audio-clip-play {
  flex: none;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--c-accent), rgba(var(--c-accent2-rgb), .9));
  color: #fff;
  cursor: pointer;
  transition: transform var(--dur-s) var(--ease-out), box-shadow var(--dur-s) var(--ease-out);
}
.audio-clip-play svg { width: 15px; height: 15px; }
@media (hover: hover) {
  .audio-clip-play:hover { transform: scale(1.08); box-shadow: 0 0 0 5px rgba(var(--c-accent-rgb), .18); }
}
.audio-clip-play:active { transform: scale(.92); }
.audio-clip.is-loading .audio-clip-play { animation: audioClipPulse 1s ease-in-out infinite; }
.audio-clip.is-error .audio-clip-play { background: rgba(var(--c-text-rgb), .2); cursor: not-allowed; }
@keyframes audioClipPulse { 50% { opacity: .55; transform: scale(.94); } }

.audio-clip-main { flex: 1; min-width: 0; display: grid; gap: 5px; }
.audio-clip-track {
  position: relative;
  height: 6px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(var(--c-text-rgb), .14);
  cursor: pointer;
}
.audio-clip-fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--c-accent), var(--c-accent2));
}
.audio-clip-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.audio-clip-time { color: rgba(var(--c-text-rgb), .6); font-size: 11px; font-variant-numeric: tabular-nums; }
.audio-clip-volume { display: inline-flex; align-items: center; gap: 6px; color: rgba(var(--c-text-rgb), .65); }
.audio-clip-volume-icon svg { display: block; width: 14px; height: 14px; }
.audio-clip-volume input {
  width: 72px;
  height: 4px;
  margin: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--c-accent) var(--pct, 100%), rgba(var(--c-text-rgb), .16) var(--pct, 100%));
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
}
.audio-clip-volume input::-webkit-slider-thumb {
  width: 12px;
  height: 12px;
  border: 0;
  border-radius: 50%;
  background: var(--c-accent);
  -webkit-appearance: none;
}
.audio-clip-volume input::-moz-range-thumb {
  width: 12px;
  height: 12px;
  border: 0;
  border-radius: 50%;
  background: var(--c-accent);
}

/* ---------- motion ---------- */
@keyframes concertSpin { to { transform: rotate(360deg); } }
@keyframes concertVinylOut { from { left: 4%; } }
@keyframes concertArmIn { from { opacity: 0; transform: rotate(-24deg); } }
@keyframes concertPolaroidIn { from { opacity: 0; transform: rotate(14deg) translateY(16px) scale(.94); } }
@keyframes concertFlutter { from { transform: translateY(0) rotate(-4deg); } to { transform: translateY(-4px) rotate(5deg); } }
@keyframes concertFloat { from { transform: translateY(0); } to { transform: translateY(-5px); } }
@keyframes concertCrown { from { transform: rotate(-14deg) translateY(0); } to { transform: rotate(-8deg) translateY(-3px); } }

/* ---------- layout ---------- */
@media (max-width: 960px) {
  .concert-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .concert-hero { grid-template-columns: auto minmax(0, 1fr); }
  .concert-polaroid { display: none; }
  .song-grid { grid-template-columns: 1fr; }
  .concert-lightbox-prev { left: 6px; }
  .concert-lightbox-next { right: 6px; }
  .concert-lightbox-close { top: 6px; right: 6px; }
}

@media (max-width: 760px) {
  .concert-grid { grid-template-columns: 1fr; gap: 12px; }
  .concert-card:first-child,
  .concert-grid > .top-skeleton:first-child { grid-column: auto; }
  .concert-card { min-height: 300px; }

  .concert-hero { --album: min(54vw, 230px); grid-template-columns: 1fr; justify-items: start; gap: 22px; }
  .concert-album { margin-left: 4px; }
  .concert-tabs { gap: 22px; margin-top: 26px; }
  .concert-tabs a { font-size: 13px; }
  .concert-banner, .concert-recap { aspect-ratio: 16 / 9; border-radius: 18px; }
  .concert-section { margin-top: 40px; }
  .song-card { grid-template-columns: auto 72px minmax(0, 1fr); gap: 12px 14px; padding: 14px; }
  .song-card-no { min-width: 0; font-size: 34px; }
  .song-card-look { width: 72px; height: 72px; }
  .concert-rank { grid-template-columns: 1fr; }
  .concert-vote { flex-wrap: wrap; gap: 16px; padding: 18px; }
  .concert-vote-copy { flex-basis: calc(100% - 90px); }
  .concert-vote .concert-button { width: 100%; justify-content: center; }
  .concert-pager { grid-template-columns: 1fr; }
  .concert-pager .is-next { grid-column: auto; }
  .concert-lightbox { padding: 12px; }
  .concert-lightbox-stage { height: 70vh; }
  .audio-clip-volume input { width: 56px; }
}

@media (prefers-reduced-motion: reduce) {
  .concert-card,
  .concert-card-cover,
  .concert-album,
  .concert-vinyl,
  .concert-vinyl span,
  .concert-tonearm,
  .concert-polaroid,
  .concert-hero-copy > *,
  .concert-section,
  .concert-head h2 .icon,
  .concert-card-mark .icon,
  .concert-sleeve-art .icon,
  .concert-vote-art,
  .rank-crown { animation: none; transition: none; }
}