/* =========================================================================
 * 纪录片收集站 · 全局样式  style.css
 * 暗色调 · 沉浸式动态背景 · 玻璃拟态 · 桌面/移动端自适应
 * ========================================================================= */

:root {
  --bg: #06060b;
  --bg-soft: #0c0c14;
  --text: #ece9f5;
  --muted: #9aa0b8;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.16);
  --glass: rgba(20, 20, 32, 0.55);
  --glass-2: rgba(28, 28, 44, 0.7);
  --accent-1: #7c5cff;   /* 紫 */
  --accent-2: #ff5ca8;   /* 粉 */
  --accent-3: #34d6ff;   /* 青 */
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.55);
  --radius: 18px;
  --radius-sm: 12px;
  --safe-b: env(safe-area-inset-bottom, 0px);
  --safe-t: env(safe-area-inset-top, 0px);
}

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

html { scroll-behavior: smooth; }
html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
img { display: block; max-width: 100%; }

/* ----------------------------- 动态背景 ----------------------------- */
.bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  background:
    radial-gradient(120% 120% at 50% -10%, #0c0a1e 0%, #06060b 55%, #030308 100%);
  pointer-events: none;
}

/* 1) Warp Drive 着色器（超空间星流隧道） */
.bg__warp {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  display: block;
}

/* 2) 点阵涟漪（675.html / BackgroundPaths 标志元素） */
.bg__dots {
  position: absolute;
  inset: 0;
  z-index: 1;
  background-image: radial-gradient(rgba(255,255,255,0.16) 1px, transparent 1.4px);
  background-size: 26px 26px;
  -webkit-mask: radial-gradient(circle at 50% 42%, #000 0%, #000 28%, transparent 78%);
          mask: radial-gradient(circle at 50% 42%, #000 0%, #000 28%, transparent 78%);
  opacity: 0.16;
  animation: dotpulse 11s ease-in-out infinite;
}
@keyframes dotpulse {
  0%,100% { background-size: 26px 26px; opacity: 0.12; }
  50%     { background-size: 30px 30px; opacity: 0.20; }
}

/* 3) 渐变光带 + 星点（BackgroundPaths 风格，由 bg.js 绘制） */
.bg__paths {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  display: block;
  mix-blend-mode: screen;
}

.bg__blob {
  position: absolute;
  width: 52vmax;
  height: 52vmax;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.16;
  mix-blend-mode: screen;
  will-change: transform;
  z-index: 3;
}
.bg__blob.b1 { background: radial-gradient(circle, var(--accent-1), transparent 65%); top: -18vmax; left: -10vmax; animation: drift1 26s ease-in-out infinite; }
.bg__blob.b2 { background: radial-gradient(circle, var(--accent-2), transparent 65%); bottom: -22vmax; right: -12vmax; animation: drift2 30s ease-in-out infinite; }
.bg__blob.b3 { background: radial-gradient(circle, var(--accent-3), transparent 65%); top: 30%; left: 40%; opacity: 0.12; animation: drift3 34s ease-in-out infinite; }

@keyframes drift1 { 0%,100% { transform: translate(0,0) scale(1); } 50% { transform: translate(8vmax,6vmax) scale(1.15); } }
@keyframes drift2 { 0%,100% { transform: translate(0,0) scale(1.05); } 50% { transform: translate(-10vmax,-4vmax) scale(0.9); } }
@keyframes drift3 { 0%,100% { transform: translate(0,0) scale(1); } 50% { transform: translate(-6vmax,8vmax) scale(1.2); } }

/* 暗角 + 顶部压暗，保证文字可读 */
.bg__vignette {
  position: absolute;
  inset: 0;
  z-index: 5;
  pointer-events: none;
  background:
    radial-gradient(125% 95% at 50% 40%, transparent 46%, rgba(3,3,8,0.66) 100%),
    linear-gradient(to bottom, rgba(3,3,8,0.65) 0%, transparent 26%, transparent 62%, rgba(3,3,8,0.92) 100%);
}

/* 细颗粒噪点，增强质感 */
.bg__grain {
  position: absolute;
  inset: -50%;
  z-index: 4;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
  opacity: 0.045;
  mix-blend-mode: overlay;
  animation: grain 8s steps(6) infinite;
}
@keyframes grain { 0%{transform:translate(0,0)} 100%{transform:translate(6%, 4%)} }

/* ----------------------------- 通用容器 ----------------------------- */
.wrap { position: relative; z-index: 1; min-height: 100dvh; display: flex; flex-direction: column; }

/* ----------------------------- 顶部导航 ----------------------------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px clamp(16px, 4vw, 40px);
  padding-top: calc(14px + var(--safe-t));
  background: linear-gradient(to bottom, rgba(6,6,11,0.85), rgba(6,6,11,0));
  backdrop-filter: blur(10px);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: .5px; }
.brand__logo {
  width: 34px; height: 34px; border-radius: 50%; flex: none;
  position: relative; overflow: hidden;
  background: linear-gradient(135deg, #14122a, #0a0a14);
  border: 2px solid rgba(255, 255, 255, 0.22);
  box-shadow:
    0 0 0 1px rgba(0,0,0,0.35),
    0 4px 12px rgba(0,0,0,0.4);
  display: grid; place-items: center;
}
.brand__logo img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: grayscale(1) contrast(1.04) brightness(1.08);
  transform: scale(1.08);
  transition: transform .35s ease, filter .35s ease;
}
.brand:hover .brand__logo img {
  transform: scale(1.18);
  filter: grayscale(1) contrast(1.08) brightness(1.14);
}
.brand__logo::after {
  content: '';
  position: absolute; inset: 0;
  border-radius: 50%;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.08), inset 0 2px 8px rgba(0,0,0,0.35);
  pointer-events: none;
}
.brand__name { font-size: 16px; }
.brand__name small { display: block; font-size: 11px; color: var(--muted); font-weight: 500; letter-spacing: 2px; }

.nav__links { display: flex; align-items: center; gap: 6px; }
.nav__link {
  padding: 8px 14px; border-radius: 999px; font-size: 14px; color: var(--muted);
  transition: .2s; border: 1px solid transparent;
}
.nav__link:hover { color: var(--text); background: rgba(255,255,255,.06); }
.nav__link.is-active { color: var(--text); background: rgba(124,92,255,.16); border-color: rgba(124,92,255,.4); }

/* =========================================================================
 * 首页 · 第一屏 Hero（纯文字 + 随机播放）
 * ========================================================================= */
.hero {
  position: relative;
  z-index: 1;
  min-height: calc(100dvh - 64px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px 20px 80px;
}
.hero__inner { max-width: 760px; }
.hero__title {
  font-size: clamp(48px, 12vw, 132px);
  font-weight: 900;
  letter-spacing: 2px;
  line-height: 1;
  background: linear-gradient(120deg, #fff 0%, #d9d2ff 40%, var(--accent-2) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  text-shadow: 0 10px 60px rgba(124, 92, 255, .25);
  animation: heroIn .9s cubic-bezier(.2,.8,.2,1) both;
}
.hero__sub {
  margin-top: 20px;
  font-size: clamp(13px, 2.4vw, 17px);
  color: var(--muted);
  letter-spacing: 1px;
  animation: heroIn .9s cubic-bezier(.2,.8,.2,1) .12s both;
}
.hero__actions {
  margin-top: 38px;
  animation: heroIn .9s cubic-bezier(.2,.8,.2,1) .24s both;
}
@keyframes heroIn { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }

.btn-random {
  display: inline-flex; align-items: center; gap: 12px;
  padding: 16px 32px; border-radius: 999px;
  font-size: 16px; font-weight: 700; color: #fff;
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  box-shadow: 0 14px 40px rgba(124, 92, 255, .5);
  transition: transform .18s, box-shadow .18s;
}
.btn-random:hover { transform: translateY(-3px) scale(1.02); box-shadow: 0 20px 52px rgba(255, 92, 168, .55); }
.btn-random:active { transform: translateY(-1px) scale(.99); }
.btn-random__ic { display: grid; place-items: center; }

.hero__scroll {
  position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  color: var(--muted); font-size: 12px; letter-spacing: 1px;
  animation: bob 2s ease-in-out infinite;
}
.hero__scroll:hover { color: var(--text); }
@keyframes bob { 0%,100% { transform: translate(-50%, 0); } 50% { transform: translate(-50%, 7px); } }

.page { scroll-margin-top: 70px; }

/* =========================================================================
 * 全屏播放器
 * ========================================================================= */
.stage {
  position: relative;
  z-index: 1;
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

.player {
  position: relative;
  flex: 1;
  min-height: 0;
  background: #000;
  overflow: hidden;
  display: grid;
  place-items: center;
}
.player__media,
.player iframe,
.player video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  background: #000;
}
.player video { object-fit: contain; }
.player__stage { position: absolute; inset: 0; }

/* 加载态 */
.player__loading {
  position: absolute; inset: 0; display: grid; place-items: center;
  background: rgba(6,6,11,.6); z-index: 5; opacity: 0; pointer-events: none; transition: .3s;
}
.player.is-loading .player__loading { opacity: 1; }
.spinner {
  width: 46px; height: 46px; border-radius: 50%;
  border: 3px solid rgba(255,255,255,.18);
  border-top-color: var(--accent-1);
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.player__error {
  position: absolute; inset: 0; display: none; place-items: center; text-align: center;
  color: var(--muted); padding: 24px; z-index: 6; background: rgba(6,6,11,.85);
}
.player.has-error .player__error { display: grid; }

/* 顶部信息条 */
.player__meta {
  position: absolute; top: 0; left: 0; right: 0; z-index: 8;
  padding: 18px clamp(16px, 4vw, 40px);
  padding-top: calc(18px + var(--safe-t));
  display: flex; align-items: flex-start; gap: 12px;
  background: linear-gradient(to bottom, rgba(0,0,0,.6), transparent);
  pointer-events: none;
}
.chip {
  pointer-events: auto;
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 12px; border-radius: 999px; font-size: 12px;
  background: rgba(124,92,255,.22); border: 1px solid rgba(124,92,255,.45);
  color: #d9d2ff; backdrop-filter: blur(6px);
}
.player__title { font-size: clamp(16px, 2.4vw, 22px); font-weight: 700; line-height: 1.3; text-shadow: 0 2px 12px rgba(0,0,0,.6); }
.player__sub { font-size: 12.5px; color: rgba(236,233,245,.75); margin-top: 4px; max-width: 680px; text-shadow: 0 1px 6px rgba(0,0,0,.7); }
.player__meta .spacer { flex: 1; }

/* 底部控制条 */
.controls {
  position: absolute; left: 0; right: 0; bottom: 0; z-index: 9;
  padding: 14px clamp(14px, 4vw, 36px) calc(16px + var(--safe-b));
  background: linear-gradient(to top, rgba(0,0,0,.78), rgba(0,0,0,.2) 70%, transparent);
  display: flex; flex-direction: column; gap: 10px;
}
.controls__row { display: flex; align-items: center; gap: 12px; }

/* 进度条 */
.progress {
  position: relative; height: 6px; border-radius: 999px; background: rgba(255,255,255,.18);
  cursor: pointer; touch-action: none; flex: 1;
}
.progress__buffered { position: absolute; left: 0; top: 0; bottom: 0; width: 0; background: rgba(255,255,255,.22); border-radius: 999px; }
.progress__played { position: absolute; left: 0; top: 0; bottom: 0; width: 0; background: linear-gradient(90deg, var(--accent-1), var(--accent-2)); border-radius: 999px; }
.progress__knob {
  position: absolute; top: 50%; left: 0; width: 14px; height: 14px; border-radius: 50%;
  background: #fff; transform: translate(-50%, -50%); box-shadow: 0 2px 8px rgba(0,0,0,.5);
  opacity: 0; transition: opacity .15s;
}
.progress:hover .progress__knob, .progress.is-dragging .progress__knob { opacity: 1; }

/* 按钮 */
.ctrl-btn {
  width: 44px; height: 44px; border-radius: 50%;
  display: grid; place-items: center; font-size: 18px; color: var(--text);
  background: rgba(255,255,255,.08); border: 1px solid var(--line);
  transition: .15s; flex: none;
}
.ctrl-btn:hover { background: rgba(255,255,255,.16); transform: translateY(-1px); }
.ctrl-btn.primary {
  width: 56px; height: 56px; font-size: 22px;
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  border: none; box-shadow: 0 8px 22px rgba(124,92,255,.5);
}
.ctrl-btn.is-off { opacity: .35; }
.ctrl-btn:disabled { opacity: .25; cursor: not-allowed; }

.time { font-size: 12.5px; color: var(--muted); font-variant-numeric: tabular-nums; min-width: 92px; text-align: center; }
.spacer { flex: 1; }

/* 音量 */
.volume { display: flex; align-items: center; gap: 8px; }
.volume__slider {
  -webkit-appearance: none; appearance: none; width: 90px; height: 5px; border-radius: 999px;
  background: rgba(255,255,255,.2); outline: none; cursor: pointer;
}
.volume__slider::-webkit-slider-thumb {
  -webkit-appearance: none; width: 13px; height: 13px; border-radius: 50%; background: #fff; cursor: pointer;
}
.volume__slider::-moz-range-thumb { width: 13px; height: 13px; border: none; border-radius: 50%; background: #fff; cursor: pointer; }

.mode-tag {
  font-size: 11px; color: var(--muted); padding: 4px 10px; border-radius: 999px;
  border: 1px solid var(--line); background: rgba(255,255,255,.04);
}

/* =========================================================================
 * 分类索引页
 * ========================================================================= */
.page { padding: clamp(18px, 4vw, 40px); max-width: 1280px; margin: 0 auto; }

.page__head { margin-bottom: 22px; }
.page__title { font-size: clamp(22px, 4vw, 34px); font-weight: 800; letter-spacing: .5px; }
.page__title .grad { background: linear-gradient(90deg, var(--accent-1), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.page__desc { color: var(--muted); margin-top: 8px; font-size: 14px; max-width: 640px; }

/* 搜索 + 筛选 */
.toolbar { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-bottom: 22px; }
.search {
  position: relative; flex: 1; min-width: 220px;
}
.search input {
  width: 100%; padding: 12px 14px 12px 42px; border-radius: 999px;
  background: var(--glass); border: 1px solid var(--line); color: var(--text); font-size: 14px;
  backdrop-filter: blur(8px); outline: none; transition: .2s;
}
.search input:focus { border-color: rgba(124,92,255,.6); box-shadow: 0 0 0 4px rgba(124,92,255,.15); }
.search__icon { position: absolute; left: 15px; top: 50%; transform: translateY(-50%); color: var(--muted); font-size: 15px; }

.filters { display: flex; flex-wrap: wrap; gap: 8px; }
.filter {
  padding: 9px 16px; border-radius: 999px; font-size: 13.5px; color: var(--muted);
  background: rgba(255,255,255,.05); border: 1px solid var(--line); transition: .18s;
}
.filter:hover { color: var(--text); border-color: var(--line-strong); }
.filter.is-active { color: #fff; background: linear-gradient(135deg, rgba(124,92,255,.85), rgba(255,92,168,.85)); border-color: transparent; }

.result-count { color: var(--muted); font-size: 13px; margin-bottom: 14px; }

/* 卡片网格 */
.grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.card {
  position: relative; border-radius: var(--radius); overflow: hidden; cursor: pointer;
  background: var(--glass); border: 1px solid var(--line);
  transition: transform .22s, box-shadow .22s, border-color .22s;
  display: flex; flex-direction: column;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: rgba(124,92,255,.5); }
.card__cover {
  aspect-ratio: 16 / 10; position: relative; overflow: hidden;
  display: grid; place-items: center;
}
.card__cover::after {
  content: ''; position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background: linear-gradient(to top, rgba(0,0,0,.6), rgba(0,0,0,0) 55%);
}
.card__cover.has-cover .card__cat { z-index: 2; }
.card__cover .glyph { position: relative; z-index: 2; font-size: 46px; opacity: .9; filter: drop-shadow(0 4px 14px rgba(0,0,0,.4)); }
.card__cat {
  position: absolute; top: 10px; left: 10px; z-index: 2;
  font-size: 11px; padding: 4px 10px; border-radius: 999px;
  background: rgba(0,0,0,.45); backdrop-filter: blur(6px); border: 1px solid rgba(255,255,255,.18);
}
.card__body { padding: 13px 14px 15px; display: flex; flex-direction: column; gap: 6px; }
.card__title { font-size: 15px; font-weight: 700; line-height: 1.35; }
.card__desc { font-size: 12.5px; color: var(--muted); line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card__foot { margin-top: 4px; display: flex; align-items: center; gap: 8px; font-size: 11.5px; color: var(--muted); }
.card__play {
  position: absolute; inset: 0; display: grid; place-items: center; z-index: 3;
  background: radial-gradient(circle at center, rgba(124,92,255,.35), rgba(0,0,0,.55));
  opacity: 0; transition: .2s;
}
.card:hover .card__play { opacity: 1; }
.card__play span {
  width: 54px; height: 54px; border-radius: 50%; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2)); font-size: 22px; color: #fff;
  box-shadow: 0 8px 24px rgba(124,92,255,.6); transform: scale(.85); transition: .2s;
}
.card:hover .card__play span { transform: scale(1); }

.empty { text-align: center; color: var(--muted); padding: 60px 20px; font-size: 14px; }

/* 分页 */
.pager {
  display: flex; align-items: center; justify-content: center;
  gap: 10px; margin-top: 30px; flex-wrap: wrap;
}
.pager__btn {
  min-width: 96px; padding: 9px 16px; border-radius: 999px; cursor: pointer;
  font-size: 14px; color: var(--text);
  background: rgba(255,255,255,.06); border: 1px solid var(--line);
  transition: .2s;
}
.pager__btn:hover:not(:disabled) { background: rgba(124,92,255,.18); border-color: rgba(124,92,255,.45); }
.pager__btn:disabled { opacity: .35; cursor: not-allowed; }
.pager__nums { display: flex; align-items: center; gap: 6px; }
.pager__num {
  width: 36px; height: 36px; border-radius: 10px; cursor: pointer; font-size: 14px;
  color: var(--muted); background: transparent; border: 1px solid transparent; transition: .2s;
}
.pager__num:hover { color: var(--text); background: rgba(255,255,255,.06); }
.pager__num.is-active {
  color: #fff; background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  border-color: transparent; box-shadow: 0 6px 18px rgba(124,92,255,.4);
}
.pager__info { color: var(--muted); font-size: 13px; min-width: 86px; text-align: center; }

/* 页脚 */
.footer {
  margin-top: auto;
  border-top: 1px solid var(--line);
  background: linear-gradient(to bottom, transparent, rgba(4,4,9,.55));
  padding: 28px clamp(16px, 4vw, 40px) calc(28px + var(--safe-b));
}
.footer__inner {
  max-width: 1280px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  flex-wrap: wrap;
}
.footer__brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: .5px; }
.footer__brand .brand__logo { width: 30px; height: 30px; border-radius: 50%; border-width: 1.5px; box-shadow: 0 0 0 1px rgba(0,0,0,0.35), 0 3px 10px rgba(0,0,0,0.32); }
.footer__links { display: flex; gap: 18px; flex-wrap: wrap; }
.footer__links a { color: var(--muted); font-size: 13px; transition: .2s; }
.footer__links a:hover { color: var(--text); }
.footer__copy { color: var(--muted); font-size: 12.5px; width: 100%; text-align: center; margin-top: 18px; opacity: .8; }

/* =========================================================================
 * 分类页 · 全屏播放浮层
 * ========================================================================= */
.overlay {
  position: fixed; inset: 0; z-index: 100; background: rgba(4,4,9,.96); backdrop-filter: blur(8px);
  display: none; flex-direction: column;
}
.overlay.is-open { display: flex; }
.overlay__close {
  position: absolute; top: calc(14px + var(--safe-t)); right: clamp(14px,4vw,36px); z-index: 12;
  width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center;
  background: rgba(255,255,255,.1); border: 1px solid var(--line); font-size: 20px;
}
.overlay__close:hover { background: rgba(255,255,255,.2); }
.overlay .player { flex: 1; }

/* =========================================================================
 * 响应式
 * ========================================================================= */
@media (max-width: 1080px) {
  .grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 640px) {
  .nav { padding: 12px 14px; }
  .brand__name { font-size: 15px; }
  .brand__name small { display: none; }
  .stage { height: calc(100dvh - 58px); }
  .controls__row { gap: 8px; }
  .time { min-width: 76px; font-size: 11.5px; }
  .volume__slider { width: 64px; }
  .ctrl-btn { width: 40px; height: 40px; font-size: 16px; }
  .ctrl-btn.primary { width: 50px; height: 50px; font-size: 20px; }
  .player__sub { display: none; }
  .grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .card__desc { -webkit-line-clamp: 2; }
  .pager__btn { min-width: 0; padding: 9px 13px; }
  .pager__info { min-width: 0; }
}

@media (max-width: 380px) {
  .volume { display: none; }   /* 极窄屏隐藏独立音量条，用设备音量 */
  .grid { grid-template-columns: repeat(2, 1fr); }
}

/* 触屏设备：让控制条常驻可见 */
@media (hover: none) {
  .progress__knob { opacity: 1; }
  .card__play { opacity: 1; background: radial-gradient(circle at center, rgba(124,92,255,.25), rgba(0,0,0,.35)); }
}