:root {
  --bg: #030403;
  --panel: rgba(16, 28, 19, 0.86);
  --panel-soft: rgba(35, 56, 37, 0.72);
  --green: #72ff2d;
  --green-2: #00f6b8;
  --text: #f5f7f3;
  --muted: rgba(245, 247, 243, 0.62);
  --line: rgba(255, 255, 255, 0.1);
  --button: rgba(245, 245, 245, 0.93);
  --shadow: rgba(0, 0, 0, 0.65);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  min-height: 100%;
  margin: 0;
  background: var(--bg);
  color: var(--text);
}

body {
  overflow-x: hidden;
}

button,
a {
  font: inherit;
}

button {
  border: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

.page-shell {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
  background:
    radial-gradient(circle at 18% 42%, rgba(255, 255, 255, 0.08), transparent 12%),
    radial-gradient(circle at 78% 35%, rgba(255, 255, 255, 0.06), transparent 17%),
    radial-gradient(circle at 64% 47%, rgba(72, 255, 109, 0.08), transparent 20%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), transparent 12%),
    #020302;
}

.page-shell::before {
  content: "";
  position: absolute;
  inset: 40px 0 112px;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(255,255,255,0.04), transparent 10%, rgba(255,255,255,0.035) 31%, transparent 46%, rgba(255,255,255,0.05) 68%, transparent 82%),
    radial-gradient(ellipse at 8% 58%, rgba(160,160,160,0.14), transparent 13%),
    radial-gradient(ellipse at 93% 41%, rgba(130,130,130,0.14), transparent 14%);
  filter: blur(14px);
  opacity: 0.7;
}

.page-shell::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(0, 0, 0, 0.74) 0%, transparent 29%, transparent 71%, rgba(0, 0, 0, 0.78) 100%),
    linear-gradient(180deg, rgba(0, 0, 0, 0.26), transparent 23%, rgba(0,0,0,0.72) 91%);
}

.site-header,
.hero,
.site-footer {
  position: relative;
  z-index: 2;
}

.site-header {
  height: 50px;
  padding: 0 38px;
  display: flex;
  align-items: center;
  background: rgba(0, 0, 0, 0.72);
  border-bottom: 1px solid rgba(255, 255, 255, 0.035);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-width: 230px;
}

.brand-name {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.brand-mark,
.large-mark {
  position: relative;
  display: inline-block;
  transform: rotate(-5deg);
  filter: drop-shadow(0 0 11px rgba(74, 255, 43, 0.36));
}

.brand-mark {
  width: 24px;
  height: 25px;
}

.large-mark {
  width: 53px;
  height: 58px;
}

.note-dot,
.large-note-dot {
  position: absolute;
  left: 1px;
  bottom: 0;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--green), var(--green-2));
}

.note-dot { width: 14px; height: 14px; }
.large-note-dot { width: 31px; height: 31px; }

.note-stem,
.large-note-stem {
  position: absolute;
  left: 10px;
  top: 0;
  width: 12px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--green), var(--green-2));
}

.note-stem { height: 24px; }
.large-note-stem { left: 23px; height: 54px; width: 25px; }

.note-flag,
.large-note-flag {
  position: absolute;
  top: 0;
  right: 0;
  width: 15px;
  height: 12px;
  background: linear-gradient(135deg, #b6ff30, var(--green));
  clip-path: polygon(0 0, 100% 0, 76% 100%, 0 72%);
}

.large-note-flag {
  width: 31px;
  height: 25px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 54px;
  margin-left: 6px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.86);
}

.nav-links a,
.support-links a,
.publish-btn {
  transition: color .22s ease, opacity .22s ease, transform .22s ease;
}

.nav-links a:hover,
.support-links a:hover {
  color: #fff;
  opacity: 1;
}

.publish-btn {
  margin-left: auto;
  padding: 8px 15px;
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.88);
  color: #161616;
  font-size: 12px;
  font-weight: 700;
}

.publish-btn:hover {
  transform: translateY(-1px);
  background: #fff;
}

.hero {
  min-height: calc(100vh - 146px);
  display: grid;
  grid-template-columns: minmax(270px, 39vw) minmax(560px, 1fr);
  align-items: center;
  gap: 8px;
  padding: 54px 9vw 42px 15vw;
}

.download-card {
  width: min(100%, 350px);
  margin-top: 28px;
}

.logo-lockup {
  display: flex;
  align-items: center;
  gap: 13px;
}

.logo-lockup h1 {
  margin: 0;
  font-size: clamp(36px, 3.4vw, 52px);
  line-height: 1;
  font-weight: 900;
  letter-spacing: -0.06em;
  text-shadow: 0 8px 26px rgba(0, 0, 0, 0.48);
}

.tagline {
  margin: 16px 0 25px 3px;
  color: rgba(255, 255, 255, 0.76);
  font-size: 16px;
  letter-spacing: 0.49em;
  white-space: nowrap;
}

.download-actions {
  display: grid;
  gap: 14px;
}

.mobile-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.download-btn {
  position: relative;
  min-height: 43px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border-radius: 7px;
  background: var(--button);
  color: #0a0a0a;
  font-size: 14px;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.22), inset 0 -1px 0 rgba(0, 0, 0, 0.12);
  transition: transform .22s ease, background .22s ease, box-shadow .22s ease;
}

.download-btn:hover {
  transform: translateY(-2px);
  background: #fff;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(114, 255, 45, 0.18);
}

.download-btn:active {
  transform: translateY(0);
}

.download-btn-wide {
  width: 100%;
}

.platform-icon {
  position: relative;
  display: inline-block;
  width: 17px;
  height: 17px;
  color: #050505;
}

.windows::before,
.windows::after {
  content: "";
  position: absolute;
  background: currentColor;
}

.windows::before {
  inset: 2px 8px 2px 1px;
  box-shadow: 8px 0 0 currentColor;
}

.windows::after {
  left: 1px;
  right: 0;
  top: 8px;
  height: 2px;
  background: var(--button);
}

.android::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 6px;
  width: 13px;
  height: 8px;
  border-radius: 3px 3px 2px 2px;
  background: currentColor;
}

.android::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 2px;
  width: 9px;
  height: 5px;
  border-radius: 7px 7px 0 0;
  border-top: 2px solid currentColor;
  border-left: 2px solid transparent;
  border-right: 2px solid transparent;
}

.apple::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 5px;
  width: 11px;
  height: 11px;
  border-radius: 46% 54% 54% 46%;
  background: currentColor;
}

.apple::after {
  content: "";
  position: absolute;
  left: 9px;
  top: 0;
  width: 5px;
  height: 7px;
  border-radius: 7px 1px 7px 1px;
  background: currentColor;
  transform: rotate(35deg);
}

.support-links {
  display: flex;
  gap: 32px;
  margin-top: 27px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 13px;
}

.support-links span {
  display: inline-block;
  margin-left: 3px;
}

.device-stage {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  justify-content: center;
  perspective: 1200px;
}

.ambient {
  position: absolute;
  width: 280px;
  height: 180px;
  border-radius: 999px;
  filter: blur(70px);
  opacity: 0.23;
}

.glow-left {
  left: 8%;
  top: 25%;
  background: #77ff38;
}

.glow-right {
  right: 11%;
  bottom: 24%;
  background: #00d393;
}

.laptop {
  position: relative;
  width: min(770px, 62vw);
  transform: translateX(2vw) translateY(25px);
  filter: drop-shadow(0 38px 60px rgba(0, 0, 0, 0.75));
}

.laptop-screen {
  position: relative;
  aspect-ratio: 16 / 10;
  padding: 18px 18px 31px;
  border-radius: 18px 18px 8px 8px;
  background: linear-gradient(145deg, #0d1110, #191f1d 48%, #090b0a);
  border: 1px solid rgba(255,255,255,0.12);
  box-shadow: inset 0 0 0 4px rgba(0,0,0,0.58), inset 0 0 28px rgba(255,255,255,0.05);
}

.laptop-screen::before {
  content: "";
  position: absolute;
  inset: 14px;
  border-radius: 10px;
  background: radial-gradient(circle at 52% 45%, rgba(114, 255, 45, 0.13), transparent 36%);
  pointer-events: none;
  z-index: 2;
}

.window-bar {
  position: absolute;
  top: 23px;
  left: 29px;
  z-index: 4;
  display: flex;
  gap: 8px;
}

.window-bar span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #ef5e4f;
}

.window-bar span:nth-child(2) { background: #f0bd47; }
.window-bar span:nth-child(3) { background: #65c96d; }

.desktop-app {
  position: relative;
  z-index: 1;
  height: 100%;
  display: grid;
  grid-template-columns: 150px 1fr;
  overflow: hidden;
  border-radius: 9px;
  background: linear-gradient(110deg, rgba(38, 55, 40, 0.98), rgba(35, 61, 31, 0.95));
}

.sidebar {
  padding: 52px 14px 20px;
  color: rgba(255,255,255,0.68);
  background: rgba(10, 20, 12, 0.52);
  font-size: 12px;
}

.app-brand-mini {
  margin-bottom: 20px;
  color: #fff;
  font-size: 16px;
  font-weight: 800;
}

.menu {
  height: 29px;
  padding: 7px 10px;
  border-radius: 3px;
  margin-bottom: 7px;
}

.menu.active {
  color: #fff;
  background: rgba(255,255,255,0.13);
}

.menu.muted {
  margin-top: 18px;
  color: rgba(255,255,255,0.4);
}

.player-area {
  display: grid;
  grid-template-columns: 210px 1fr 54px;
  gap: 35px;
  align-items: center;
  padding: 55px 52px 82px 55px;
}

.album-art {
  position: relative;
  height: 210px;
  border-radius: 5px;
  overflow: hidden;
  background: linear-gradient(145deg, #29452f, #111d16);
  box-shadow: 0 12px 30px rgba(0,0,0,0.38);
}

.photo {
  position: absolute;
  border-radius: 50%;
  opacity: 0.85;
}

.photo-a {
  width: 190px;
  height: 150px;
  left: -28px;
  bottom: -40px;
  background: radial-gradient(circle, rgba(251,239,196,0.95), rgba(68,105,73,0.5) 43%, transparent 70%);
}

.photo-b {
  width: 170px;
  height: 170px;
  right: -30px;
  top: -24px;
  background: radial-gradient(circle, rgba(219,227,187,0.96), rgba(52,76,58,0.56) 45%, transparent 70%);
}

.photo-c {
  width: 120px;
  height: 130px;
  left: 56px;
  top: 50px;
  background: radial-gradient(circle, rgba(26,34,24,0.7), rgba(216,180,118,0.56) 25%, transparent 62%);
}

.song-meta {
  color: rgba(255,255,255,0.34);
}

.song-meta p {
  margin: 0 0 22px;
  font-size: 18px;
  font-weight: 700;
}

.song-meta h2 {
  margin: 0 0 20px;
  color: rgba(255,255,255,0.93);
  font-size: 22px;
  line-height: 1.4;
}

.like-heart {
  align-self: center;
  color: #fff;
  font-size: 30px;
  text-align: center;
}

.like-heart span {
  display: block;
  margin-top: 4px;
  font-size: 10px;
  color: rgba(255,255,255,0.55);
}

.controls {
  position: absolute;
  left: 150px;
  right: 0;
  bottom: 0;
  height: 62px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 30px;
  border-top: 1px solid rgba(255,255,255,0.08);
  background: rgba(26, 44, 28, 0.46);
}

.controls span {
  width: 0;
  height: 0;
  border-top: 8px solid transparent;
  border-bottom: 8px solid transparent;
  border-right: 12px solid rgba(255,255,255,0.76);
}

.controls span:last-child {
  border-right: 0;
  border-left: 12px solid rgba(255,255,255,0.76);
}

.controls .play {
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 50%;
  background: rgba(255,255,255,0.13);
  position: relative;
}

.controls .play::before,
.controls .play::after {
  content: "";
  position: absolute;
  top: 12px;
  width: 5px;
  height: 18px;
  border-radius: 2px;
  background: #fff;
}

.controls .play::before { left: 15px; }
.controls .play::after { right: 15px; }

.laptop-base {
  width: 108%;
  height: 20px;
  margin-left: -4%;
  background: linear-gradient(180deg, #1b1f1d, #060706 65%, #000);
  border-radius: 0 0 50% 50% / 0 0 90% 90%;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.2), 0 10px 18px rgba(0,0,0,0.8);
}

.phone {
  position: absolute;
  right: clamp(14px, 5vw, 92px);
  top: 126px;
  width: 169px;
  height: 344px;
  padding: 9px;
  border-radius: 29px;
  background: linear-gradient(145deg, #202924, #0b100d);
  border: 1px solid rgba(255,255,255,0.18);
  box-shadow: 0 30px 50px rgba(0,0,0,0.58), inset 0 0 0 2px rgba(255,255,255,0.06);
  transform: rotate(1deg);
}

.phone-screen {
  height: 100%;
  border-radius: 21px;
  overflow: hidden;
  padding: 11px 10px 13px;
  background: linear-gradient(180deg, #263c25, #192719 45%, #142014);
}

.phone-top,
.phone-title {
  display: flex;
  justify-content: space-between;
  color: rgba(255,255,255,0.76);
  font-size: 8px;
}

.phone-title {
  margin-top: 12px;
  font-size: 10px;
  font-weight: 700;
}

.phone-cover {
  height: 116px;
  margin: 14px 7px 18px;
  border-radius: 4px;
  background:
    radial-gradient(circle at 53% 0, rgba(238, 238, 206, 0.9), transparent 25%),
    linear-gradient(158deg, #121312 12%, #566e48 13%, #0d110e 19%, #b7d85a 22%, #1f2d23 28%, #0d0f0e 52%, #263228 100%);
  box-shadow: 0 11px 22px rgba(0,0,0,0.36);
}

.phone-song,
.phone-artist {
  margin: 0 7px;
}

.phone-song {
  color: #fff;
  font-size: 11px;
  font-weight: 800;
}

.phone-artist {
  margin-top: 5px;
  color: rgba(255,255,255,0.46);
  font-size: 8px;
}

.phone-actions {
  display: flex;
  gap: 18px;
  margin: 18px 7px 11px;
  color: rgba(255,255,255,0.92);
  font-size: 12px;
}

.phone-progress {
  height: 2px;
  margin: 0 7px 17px;
  background: rgba(255,255,255,0.15);
}

.phone-progress span {
  display: block;
  width: 42%;
  height: 100%;
  background: #fff;
}

.phone-player {
  display: flex;
  justify-content: center;
  gap: 22px;
  align-items: center;
}

.phone-player span {
  width: 8px;
  height: 8px;
  border-left: 2px solid rgba(255,255,255,0.7);
  border-bottom: 2px solid rgba(255,255,255,0.7);
  transform: rotate(45deg);
}

.phone-player span:last-child {
  transform: rotate(-135deg);
}

.phone-player .phone-play {
  width: 27px;
  height: 27px;
  border: 1px solid rgba(255,255,255,0.86);
  border-radius: 50%;
  transform: none;
  position: relative;
}

.phone-player .phone-play::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 7px;
  width: 0;
  height: 0;
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
  border-left: 9px solid #fff;
}

.site-footer {
  min-height: 96px;
  padding: 16px 24px 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  color: rgba(255,255,255,0.44);
  font-size: 11px;
  text-align: center;
  background: #000;
}

.site-footer p {
  margin: 0;
  line-height: 1.55;
}

@media (max-width: 1180px) {
  .hero {
    grid-template-columns: 1fr;
    padding: 60px 6vw 34px;
    text-align: center;
  }

  .download-card {
    justify-self: center;
    margin-top: 0;
  }

  .logo-lockup,
  .support-links {
    justify-content: center;
  }

  .device-stage {
    width: 100%;
    min-height: 430px;
  }

  .laptop {
    width: min(760px, 86vw);
    transform: translateY(0);
  }

  .phone {
    right: 5vw;
    top: 88px;
  }
}

@media (max-width: 760px) {
  .site-header {
    height: auto;
    min-height: 58px;
    padding: 12px 18px;
    gap: 16px;
    flex-wrap: wrap;
  }

  .brand {
    min-width: auto;
  }

  .nav-links {
    order: 3;
    width: 100%;
    justify-content: space-between;
    gap: 12px;
    margin-left: 0;
  }

  .publish-btn {
    padding: 7px 11px;
  }

  .hero {
    min-height: auto;
    padding-top: 48px;
  }

  .tagline {
    font-size: 12px;
    letter-spacing: 0.32em;
  }

  .download-card {
    width: min(100%, 330px);
  }

  .device-stage {
    min-height: 360px;
    overflow: visible;
  }

  .laptop {
    width: 650px;
    max-width: 120vw;
    transform: translateX(7vw) scale(0.78);
  }

  .phone {
    right: 5vw;
    top: 92px;
    transform: scale(0.8) rotate(1deg);
    transform-origin: top right;
  }

  .player-area {
    grid-template-columns: 170px 1fr 40px;
    gap: 24px;
    padding-left: 42px;
  }

  .album-art {
    height: 170px;
  }

  .song-meta h2 {
    font-size: 18px;
  }

  .song-meta p {
    font-size: 15px;
  }

  .site-footer {
    font-size: 10px;
    padding-left: 16px;
    padding-right: 16px;
  }
}

@media (max-width: 460px) {
  .mobile-row {
    gap: 10px;
  }

  .support-links {
    gap: 18px;
    font-size: 12px;
  }

  .logo-lockup h1 {
    font-size: 39px;
  }

  .large-mark {
    width: 45px;
    height: 50px;
  }

  .large-note-dot { width: 27px; height: 27px; }
  .large-note-stem { left: 20px; width: 21px; height: 47px; }
  .large-note-flag { width: 26px; height: 21px; }
}