/* 双色球数据助手 · 下载页
   暖米色 + 薄荷 + 浅杏，尽量安静、耐看。 */

:root {
  color-scheme: light;
  --bg: #f7f4ec;
  --bg-warm: #f1ebdd;
  --surface: #fffdf8;
  --surface-soft: #fbf7ed;
  --ink: #292722;
  --ink-soft: #49453d;
  --muted: #736d62;
  --faint: #7d7568;
  --line: rgba(41, 39, 34, 0.10);
  --line-strong: rgba(41, 39, 34, 0.17);
  --coral: #e96557;
  --coral-deep: #c95245;
  --coral-soft: #fae4de;
  --mint: #dcece1;
  --mint-deep: #4c7a64;
  --sky: #dfeaf2;
  --sky-deep: #50758c;
  --sun: #f6e6c2;
  --sun-deep: #846428;
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --shadow-sm: 0 3px 16px rgba(57, 47, 35, 0.05);
  --shadow-md: 0 22px 60px -38px rgba(57, 47, 35, 0.35);
  --shadow-lg: 0 44px 100px -52px rgba(57, 47, 35, 0.5);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono",
    monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img,
svg,
video {
  display: block;
  max-width: 100%;
}

button,
input {
  font: inherit;
}

a {
  color: inherit;
}

::selection {
  color: var(--ink);
  background: #f2cdbd;
}

:focus-visible {
  outline: 3px solid rgba(233, 101, 87, 0.42);
  outline-offset: 3px;
  border-radius: 6px;
}

[hidden] {
  display: none !important;
}

.shell {
  width: min(1160px, calc(100% - 48px));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 200;
  padding: 10px 16px;
  color: #fff;
  background: var(--ink);
  border-radius: 999px;
  font-size: 13px;
  text-decoration: none;
  transform: translateY(-160%);
  transition: transform 0.2s ease;
}

.skip-link:focus {
  transform: translateY(0);
}

/* ---------------------------------------------------- 顶部导航 */

.site-header {
  position: sticky;
  top: 0;
  z-index: 70;
  background: rgba(247, 244, 236, 0.78);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(16px) saturate(1.1);
  -webkit-backdrop-filter: blur(16px) saturate(1.1);
  transition: background-color 0.25s ease, border-color 0.25s ease,
    box-shadow 0.25s ease;
}

.site-header.is-scrolled {
  background: rgba(247, 244, 236, 0.93);
  border-color: var(--line);
  box-shadow: 0 10px 34px -28px rgba(57, 47, 35, 0.4);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 30px;
  min-height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-right: auto;
  text-decoration: none;
  border-radius: 12px;
}

.brand img {
  width: 40px;
  height: 40px;
  flex: none;
  border-radius: 12px;
  box-shadow: 0 5px 14px -8px rgba(190, 70, 60, 0.55);
}

.brand-copy {
  display: flex;
  flex-direction: column;
  line-height: 1.35;
}

.brand-copy strong {
  font-size: 14.5px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.brand-copy small {
  margin-top: 2px;
  font-size: 10.5px;
  color: var(--faint);
  letter-spacing: 0.02em;
}

.site-nav {
  display: flex;
  gap: 28px;
  font-size: 13.5px;
}

.site-nav a {
  position: relative;
  padding: 7px 0;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.site-nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 1px;
  left: 0;
  height: 1.5px;
  background: var(--coral);
  border-radius: 99px;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.25s ease;
}

.site-nav a:hover {
  color: var(--ink);
}

.site-nav a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* ---------------------------------------------------- 按钮 */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 50px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 14.5px;
  font-weight: 650;
  line-height: 1;
  white-space: nowrap;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease,
    background-color 0.2s ease, border-color 0.2s ease;
}

.btn svg {
  width: 18px;
  height: 18px;
  flex: none;
}

.btn--small {
  min-height: 40px;
  padding: 0 17px;
  font-size: 13px;
}

.btn--small svg {
  width: 15px;
  height: 15px;
}

.btn--lg {
  min-height: 56px;
  padding: 0 30px;
  font-size: 15.5px;
}

.btn--primary {
  color: #fff;
  background: var(--coral);
  box-shadow: 0 16px 30px -20px rgba(190, 65, 51, 0.8);
}

.btn--primary:hover {
  background: var(--coral-deep);
  box-shadow: 0 20px 36px -20px rgba(190, 65, 51, 0.85);
  transform: translateY(-2px);
}

.btn--ghost {
  color: var(--ink);
  background: rgba(255, 253, 248, 0.64);
  border-color: var(--line-strong);
}

.btn--ghost:hover {
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

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

.btn[aria-busy="true"] {
  cursor: progress;
  opacity: 0.72;
}

.play-mini {
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  margin-left: -4px;
  color: #fff;
  background: var(--ink);
  border-radius: 50%;
}

.play-mini svg {
  width: 9px;
  height: 9px;
  margin-left: 1px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 18px;
  padding-bottom: 3px;
  color: var(--mint-deep);
  border-bottom: 1px solid rgba(76, 122, 100, 0.32);
  font-size: 12.5px;
  font-weight: 650;
  text-decoration: none;
  transition: gap 0.2s ease, border-color 0.2s ease;
}

.text-link svg {
  width: 14px;
  height: 14px;
}

.text-link:hover {
  gap: 10px;
  border-color: var(--mint-deep);
}

/* ---------------------------------------------------- 标题组件 */

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  max-width: 100%;
  padding: 8px 14px;
  color: var(--muted);
  background: rgba(255, 253, 248, 0.75);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 11.5px;
  line-height: 1.4;
  letter-spacing: 0.02em;
}

.eyebrow-dot {
  width: 6px;
  height: 6px;
  flex: none;
  background: #6d9e82;
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(109, 158, 130, 0.13);
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--coral-deep);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  line-height: 1.4;
  text-transform: uppercase;
}

.kicker::before {
  content: "";
  width: 22px;
  height: 1px;
  background: currentColor;
  opacity: 0.55;
}

.kicker--mint {
  color: var(--mint-deep);
}

.section {
  padding: 96px 0;
}

.section-head {
  max-width: 700px;
  margin-bottom: 42px;
}

.section-head h2 {
  margin: 14px 0 0;
  font-size: clamp(1.9rem, 3.4vw, 2.85rem);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.section-head p {
  max-width: 590px;
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.85;
}

/* ---------------------------------------------------- 首屏 */

.hero {
  position: relative;
  padding: 62px 0 78px;
  overflow: clip;
  background:
    radial-gradient(55% 72% at 87% 8%, rgba(223, 234, 242, 0.82) 0, transparent 68%),
    radial-gradient(42% 55% at 3% 18%, rgba(246, 230, 194, 0.66) 0, transparent 68%),
    radial-gradient(48% 50% at 62% 94%, rgba(220, 236, 225, 0.58) 0, transparent 70%);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.03fr) minmax(0, 0.97fr);
  align-items: center;
  gap: 30px;
}

.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 650px;
}

.hero h1 {
  position: relative;
  isolation: isolate;
  margin: 22px 0 0;
  font-size: clamp(2.55rem, 4.4vw, 3.85rem);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.04em;
  text-wrap: balance;
}

.hero h1 .accent {
  position: relative;
  display: inline-block;
  color: var(--coral-deep);
}

.hero h1 .accent::after {
  content: "";
  position: absolute;
  right: 2%;
  bottom: 0.06em;
  left: 0;
  z-index: -1;
  height: 0.16em;
  background: rgba(243, 205, 132, 0.62);
  border-radius: 99px;
  transform: rotate(-1.2deg);
}

.lede {
  max-width: 540px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 16.5px;
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  margin-top: 20px;
  color: var(--faint);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}

.hero-meta span + span::before {
  content: "·";
  margin: 0 9px;
  color: rgba(41, 39, 34, 0.3);
}

.counter {
  width: 100%;
  max-width: 430px;
  margin-top: 26px;
  padding: 14px 17px 15px;
  background: rgba(255, 253, 248, 0.72);
  border: 1px solid rgba(41, 39, 34, 0.09);
  border-radius: 20px;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.counter-head {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--faint);
  font-size: 10.5px;
  line-height: 1.4;
  letter-spacing: 0.04em;
}

.counter-hint {
  margin-left: auto;
  color: var(--faint);
  font-size: 9.5px;
  letter-spacing: 0;
  opacity: 0.85;
}

.live-dot {
  width: 6px;
  height: 6px;
  flex: none;
  background: #78a98c;
  border-radius: 50%;
  animation: live-pulse 2.8s ease-in-out infinite;
}

.counter.is-error .live-dot {
  background: #b2a99b;
  animation: none;
}

.counter-row {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-top: 7px;
}

.counter-item {
  display: flex;
  align-items: baseline;
  gap: 6px;
  white-space: nowrap;
}

.counter-item strong {
  color: var(--ink);
  font-size: 23px;
  font-weight: 750;
  line-height: 1.15;
  letter-spacing: -0.035em;
  font-variant-numeric: tabular-nums;
}

.counter-item small {
  color: var(--faint);
  font-size: 10.5px;
  letter-spacing: 0.02em;
}

.counter-rule {
  width: 1px;
  height: 18px;
  background: var(--line);
}

.tiny-note {
  max-width: 540px;
  margin: 17px 0 0;
  color: var(--faint);
  font-size: 11.5px;
  line-height: 1.75;
}

/* -------------------------------- 首屏右侧手机 */

.hero-visual {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 610px;
}

.hero-halo {
  position: absolute;
  inset: 3% 1% 4%;
  background:
    radial-gradient(circle at 38% 36%, rgba(220, 236, 225, 0.95), transparent 58%),
    radial-gradient(circle at 70% 70%, rgba(246, 230, 194, 0.72), transparent 60%),
    radial-gradient(circle at 50% 50%, rgba(223, 234, 242, 0.66), transparent 70%);
  border-radius: 50%;
  filter: blur(10px);
  opacity: 0.95;
}

.phone {
  position: relative;
  z-index: 2;
  width: min(298px, 82%);
  padding: 9px;
  background: #201e1b;
  border-radius: 44px;
  box-shadow:
    var(--shadow-lg),
    0 0 0 1px rgba(255, 255, 255, 0.09) inset;
  transform: rotate(1.1deg);
}

.phone::before {
  content: "";
  position: absolute;
  top: 128px;
  right: -2px;
  width: 3px;
  height: 52px;
  background: #34312c;
  border-radius: 0 4px 4px 0;
}

.phone-screen {
  overflow: hidden;
  background: #eef1f5;
  border-radius: 36px;
  aspect-ratio: 720 / 1494;
}

.phone-screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

.float-card {
  position: absolute;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 14px;
  color: var(--ink-soft);
  background: rgba(255, 253, 248, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: 16px;
  box-shadow: 0 18px 44px -28px rgba(55, 44, 32, 0.55);
  backdrop-filter: blur(9px);
  -webkit-backdrop-filter: blur(9px);
  font-size: 11.5px;
  line-height: 1.35;
}

.float-card strong {
  display: block;
  color: var(--ink);
  font-size: 11.5px;
  font-weight: 650;
}

.float-card small {
  display: block;
  margin-top: 1px;
  color: var(--faint);
  font-size: 9.5px;
}

.float-card--date {
  top: 10%;
  left: -8%;
  animation: bob-card 8.5s ease-in-out infinite;
}

.float-card--offline {
  right: -6%;
  bottom: 15%;
  animation: bob-card 9.5s 0.8s ease-in-out infinite;
}

.float-icon {
  display: grid;
  place-items: center;
  width: 27px;
  height: 27px;
  flex: none;
  color: var(--mint-deep);
  background: var(--mint);
  border-radius: 9px;
}

.float-icon--sun {
  color: var(--sun-deep);
  background: var(--sun);
}

.float-icon svg {
  width: 14px;
  height: 14px;
}

.hero-ball {
  position: absolute;
  z-index: 4;
  display: grid;
  place-items: center;
  color: rgba(255, 255, 255, 0.95);
  font-size: 14px;
  font-weight: 750;
  letter-spacing: -0.02em;
  border-radius: 50%;
  box-shadow:
    inset -5px -7px 12px rgba(0, 0, 0, 0.15),
    0 16px 28px -18px rgba(0, 0, 0, 0.55);
  font-variant-numeric: tabular-nums;
}

.hero-ball--red {
  top: 2%;
  right: 3%;
  width: 54px;
  height: 54px;
  background: radial-gradient(circle at 32% 28%, #ff9285, #e6574d 62%, #c74439);
  animation: bob-ball 7.5s ease-in-out infinite;
}

.hero-ball--blue {
  bottom: 4%;
  left: 4%;
  width: 42px;
  height: 42px;
  font-size: 12px;
  background: radial-gradient(circle at 32% 28%, #8eb8f2, #4d7fc9 62%, #3869ad);
  animation: bob-ball 8.5s 1.2s ease-in-out infinite;
}

/* ---------------------------------------------------- 数据里数 */

.stats-band {
  background: rgba(255, 253, 248, 0.52);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 28px 0;
}

.stat {
  padding: 4px 30px;
}

.stat + .stat {
  border-left: 1px solid var(--line);
}

.stat:first-child {
  padding-left: 0;
}

.stat strong {
  display: block;
  font-size: clamp(1.65rem, 2.6vw, 2.25rem);
  font-weight: 780;
  line-height: 1.2;
  letter-spacing: -0.045em;
  font-variant-numeric: tabular-nums;
}

.stat strong small {
  margin-left: 3px;
  font-size: 0.48em;
  font-weight: 650;
  letter-spacing: 0;
  color: var(--muted);
}

.stat span {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  font-size: 11.5px;
  letter-spacing: 0.01em;
}

/* ---------------------------------------------------- 功能卡片 */

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  position: relative;
  padding: 27px 26px 23px;
  background: rgba(255, 253, 248, 0.82);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.7) inset;
  transition: transform 0.3s ease, box-shadow 0.3s ease,
    border-color 0.3s ease, background-color 0.3s ease;
}

.feature-card:hover {
  background: var(--surface);
  border-color: rgba(41, 39, 34, 0.15);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.feature-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.feature-icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 15px;
}

.feature-icon svg {
  width: 22px;
  height: 22px;
}

.feature-icon--mint {
  color: var(--mint-deep);
  background: #e3efe7;
}

.feature-icon--coral {
  color: #b95447;
  background: var(--coral-soft);
}

.feature-icon--sky {
  color: var(--sky-deep);
  background: #e4eef5;
}

.feature-icon--sun {
  color: var(--sun-deep);
  background: #f7edcf;
}

.feature-num {
  color: var(--faint);
  font-size: 10px;
  font-weight: 650;
  letter-spacing: 0.12em;
  font-variant-numeric: tabular-nums;
}

.feature-card h3 {
  margin: 21px 0 9px;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -0.02em;
}

.feature-card p {
  margin: 0;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.85;
}

.feature-foot {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-top: 18px;
  padding-top: 13px;
  color: var(--faint);
  border-top: 1px dashed var(--line);
  font-size: 10.5px;
  line-height: 1.5;
}

.feature-foot::before {
  content: "";
  width: 4px;
  height: 4px;
  flex: none;
  background: var(--coral);
  border-radius: 50%;
  opacity: 0.7;
}

/* ---------------------------------------------------- 激活说明 */

.member-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 34px 52px;
  margin-top: 22px;
  padding: 40px;
  background:
    linear-gradient(120deg, rgba(220, 236, 225, 0.88), rgba(250, 245, 231, 0.9) 55%, rgba(223, 234, 242, 0.82));
  border: 1px solid rgba(76, 122, 100, 0.14);
  border-radius: 28px;
}

.member-panel h3 {
  margin: 14px 0 12px;
  font-size: clamp(1.65rem, 2.5vw, 2.15rem);
  font-weight: 780;
  line-height: 1.32;
  letter-spacing: -0.035em;
}

.member-copy p {
  max-width: 430px;
  margin: 0;
  color: var(--ink-soft);
  font-size: 13.5px;
  line-height: 1.9;
}

.steps {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps li {
  display: flex;
  align-items: flex-start;
  gap: 13px;
  padding: 14px 16px;
  background: rgba(255, 253, 248, 0.62);
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 17px;
}

.step-num {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  flex: none;
  margin-top: 1px;
  color: #fff;
  background: var(--ink);
  border-radius: 50%;
  font-size: 10.5px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.steps strong {
  display: block;
  font-size: 13px;
  font-weight: 650;
  line-height: 1.5;
}

.steps p {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 11.5px;
  line-height: 1.65;
}

.member-note {
  grid-column: 1 / -1;
  margin: 0;
  padding-top: 15px;
  color: var(--muted);
  border-top: 1px solid rgba(76, 122, 100, 0.14);
  font-size: 10.5px;
  line-height: 1.7;
}

.price-tiers {
  display: grid;
  grid-column: 1 / -1;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.price-tier {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 18px 16px 16px;
  text-align: center;
  background: rgba(255, 253, 248, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.price-tier--featured {
  background: linear-gradient(160deg, rgba(220, 236, 225, 0.95), rgba(255, 253, 248, 0.9));
  border-color: rgba(76, 122, 100, 0.25);
}

.price-name {
  color: var(--muted);
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.04em;
  line-height: 1.5;
}

.price-tier--featured .price-name {
  color: var(--mint-deep);
}

.price-amount {
  margin: 2px 0;
  color: var(--ink);
  font-size: clamp(1.7rem, 2.8vw, 2.15rem);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  line-height: 1.15;
  letter-spacing: -0.04em;
}

.price-unit {
  margin-right: 2px;
  color: var(--muted);
  font-size: 0.58em;
  font-weight: 650;
  vertical-align: 0.35em;
}

.price-desc {
  color: var(--faint);
  font-size: 10.5px;
  line-height: 1.6;
}

.price-tier--featured .price-desc {
  color: var(--mint-deep);
}

/* ---------------------------------------------------- 演示视频 */

.video-section {
  background:
    linear-gradient(180deg, rgba(220, 236, 225, 0.5), rgba(247, 244, 236, 0.18) 70%, rgba(247, 244, 236, 0.5));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.video-wrap {
  max-width: 980px;
  margin: 0 auto;
}

.video-shell {
  position: relative;
  overflow: hidden;
  background: #1e1b17;
  border-radius: 28px;
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(255, 255, 255, 0.06) inset;
}

.video-shell video {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  background: #1e1b17;
  object-fit: cover;
}

.video-cover {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 13px;
  width: 100%;
  padding: 24px;
  color: #fff;
  background:
    linear-gradient(180deg, rgba(22, 18, 15, 0.08), rgba(22, 18, 15, 0.48));
  border: 0;
  cursor: pointer;
  text-align: center;
  transition: background-color 0.25s ease;
}

.video-cover:hover {
  background:
    linear-gradient(180deg, rgba(22, 18, 15, 0.02), rgba(22, 18, 15, 0.54));
}

.play-bubble {
  display: grid;
  place-items: center;
  width: 74px;
  height: 74px;
  color: var(--ink);
  background: rgba(255, 253, 248, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: 50%;
  box-shadow: 0 20px 44px -20px rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  transition: transform 0.25s ease, background-color 0.25s ease;
}

.play-bubble svg {
  width: 25px;
  height: 25px;
  margin-left: 4px;
}

.video-cover:hover .play-bubble {
  background: #fffdf8;
  transform: scale(1.06);
}

.cover-text {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  color: rgba(255, 255, 255, 0.92);
  background: rgba(22, 18, 15, 0.48);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  backdrop-filter: blur(7px);
  -webkit-backdrop-filter: blur(7px);
  font-size: 11.5px;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.05em;
  text-shadow: 0 1px 14px rgba(0, 0, 0, 0.35);
}

.video-caption {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  margin-top: 15px;
  color: var(--faint);
  font-size: 11px;
  line-height: 1.7;
  flex-wrap: wrap;
}

.video-more {
  max-width: 480px;
  color: var(--muted);
  font-size: 11px;
}

.video-more summary {
  cursor: pointer;
  list-style: none;
  text-align: right;
  color: var(--muted);
  text-decoration: underline;
  text-decoration-color: rgba(41, 39, 34, 0.2);
  text-underline-offset: 3px;
}

.video-more summary::-webkit-details-marker {
  display: none;
}

.video-more p {
  margin: 10px 0 0;
  padding: 13px 16px;
  background: rgba(255, 253, 248, 0.65);
  border: 1px solid var(--line);
  border-radius: 13px;
  line-height: 1.85;
}

/* ---------------------------------------------------- 界面一览 */

.gallery-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
  align-items: start;
  gap: 22px;
}

.gallery-side {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.gallery-card {
  margin: 0;
  padding: 11px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.8) inset, var(--shadow-sm);
}

.gallery-img {
  overflow: hidden;
  background: #eef1f6;
  border-radius: 17px;
}

.gallery-img img {
  width: 100%;
  height: auto;
  transition: transform 0.7s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.gallery-card:hover .gallery-img img {
  transform: scale(1.012);
}

.gallery-card figcaption {
  padding: 14px 10px 7px;
}

.gallery-card figcaption span {
  display: block;
  color: var(--coral-deep);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.gallery-card figcaption p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.7;
}

.gallery-note {
  position: relative;
  overflow: hidden;
  padding: 23px 24px;
  color: var(--sun-deep);
  background: rgba(246, 230, 194, 0.56);
  border: 1px solid rgba(132, 100, 40, 0.1);
  border-radius: var(--radius-lg);
  font-size: 12.5px;
  line-height: 1.85;
}

.gallery-note::before {
  content: "“";
  position: absolute;
  top: -15px;
  right: 16px;
  color: rgba(132, 100, 40, 0.12);
  font-family: Georgia, serif;
  font-size: 92px;
  line-height: 1;
}

.gallery-note span {
  display: block;
  margin-top: 8px;
  color: rgba(132, 100, 40, 0.7);
  font-size: 10px;
  letter-spacing: 0.03em;
}

/* ---------------------------------------------------- 下载 */

.download-section {
  padding: 96px 0 106px;
  background:
    radial-gradient(60% 72% at 10% 80%, rgba(246, 230, 194, 0.35), transparent 70%),
    radial-gradient(55% 62% at 88% 10%, rgba(220, 236, 225, 0.5), transparent 72%);
}

.download-card {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(280px, 0.88fr);
  gap: 48px;
  overflow: hidden;
  padding: 50px;
  background: linear-gradient(135deg, #fffaf0 0%, #f3f8f1 53%, #eaf2f7 100%);
  border: 1px solid rgba(201, 82, 69, 0.12);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
}

.download-card::before {
  content: "";
  position: absolute;
  right: -130px;
  bottom: -190px;
  width: 430px;
  height: 430px;
  background: radial-gradient(circle at 32% 28%, #ff9285, #e6574d 62%, #c74439);
  border-radius: 50%;
  opacity: 0.13;
}

.download-card::after {
  content: "";
  position: absolute;
  top: -70px;
  left: 46%;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, rgba(246, 230, 194, 0.65), transparent 68%);
  border-radius: 50%;
  pointer-events: none;
}

.download-copy {
  position: relative;
  z-index: 1;
  min-width: 0;
}

.download-copy h2 {
  margin: 14px 0 0;
  font-size: clamp(2rem, 3.7vw, 3rem);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.04em;
}

.download-copy > p {
  max-width: 540px;
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.9;
}

.br-mobile {
  display: none;
}

.download-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 15px;
  margin-top: 28px;
}

.download-size {
  color: var(--faint);
  font-size: 11.5px;
  font-variant-numeric: tabular-nums;
}

.dl-status {
  max-width: 560px;
  margin-top: 18px;
  padding: 13px 16px;
  background: rgba(255, 253, 248, 0.74);
  border: 1px solid var(--line);
  border-radius: 15px;
}

.dl-status-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  color: var(--muted);
  font-size: 11.5px;
  line-height: 1.6;
}

.dl-percent {
  flex: none;
  color: var(--faint);
  font-size: 10.5px;
  font-variant-numeric: tabular-nums;
}

.dl-bar {
  height: 5px;
  margin-top: 9px;
  overflow: hidden;
  background: rgba(41, 39, 34, 0.08);
  border-radius: 99px;
}

.dl-bar span {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--coral), #ef9a72);
  border-radius: inherit;
  transition: width 0.35s ease;
}

.dl-status[data-tone="success"] {
  border-color: rgba(76, 122, 100, 0.25);
}

.dl-status[data-tone="success"] .dl-bar span {
  background: linear-gradient(90deg, #6f9d84, #a8c7b4);
}

.dl-status[data-tone="error"] {
  border-color: rgba(201, 82, 69, 0.25);
}

.dl-status[data-tone="error"] .dl-bar span {
  background: var(--coral);
}

.checksum {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  max-width: 560px;
  min-width: 0;
  margin-top: 21px;
  padding: 8px 8px 8px 13px;
  background: rgba(255, 253, 248, 0.58);
  border: 1px solid var(--line);
  border-radius: 13px;
}

.checksum-label {
  flex: none;
  color: var(--muted);
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.checksum code {
  min-width: 0;
  flex: 1;
  overflow: hidden;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 10px;
  line-height: 1.5;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  flex: none;
  padding: 6px 9px;
  color: var(--ink-soft);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 9px;
  font-size: 10px;
  line-height: 1.4;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.copy-btn svg {
  width: 12px;
  height: 12px;
}

.copy-btn:hover {
  background: var(--bg-warm);
  border-color: var(--line-strong);
}

.chunk-note {
  max-width: 540px;
  margin: 13px 0 0;
  color: var(--faint);
  font-size: 10.5px;
  line-height: 1.75;
}

.noscript {
  max-width: 540px;
  margin: 14px 0 0;
  padding: 11px 14px;
  color: #8d453b;
  background: rgba(250, 228, 222, 0.7);
  border: 1px solid rgba(201, 82, 69, 0.18);
  border-radius: 12px;
  font-size: 11.5px;
  line-height: 1.7;
}

.download-info {
  position: relative;
  z-index: 1;
  align-self: start;
  padding: 23px;
  background: rgba(255, 253, 248, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.85);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(7px);
  -webkit-backdrop-filter: blur(7px);
}

.file-tile {
  display: flex;
  align-items: center;
  gap: 13px;
  padding-bottom: 17px;
  border-bottom: 1px solid var(--line);
}

.apk-badge {
  display: grid;
  place-items: center;
  width: 47px;
  height: 47px;
  flex: none;
  color: #fff;
  background: linear-gradient(145deg, #f47b6c, #d95345);
  border-radius: 14px;
  box-shadow: 0 12px 22px -14px rgba(190, 65, 51, 0.7);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.file-meta {
  min-width: 0;
}

.file-meta strong {
  display: block;
  font-size: 11.5px;
  font-weight: 650;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.file-meta span {
  display: block;
  margin-top: 3px;
  color: var(--faint);
  font-size: 10px;
}

.check-list {
  display: grid;
  gap: 11px;
  margin: 17px 0 0;
  padding: 0;
  color: var(--ink-soft);
  font-size: 11.5px;
  line-height: 1.6;
  list-style: none;
}

.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.check-list svg {
  width: 14px;
  height: 14px;
  flex: none;
  margin-top: 2px;
  color: var(--mint-deep);
}

.aside-note {
  margin: 17px 0 0;
  padding-top: 15px;
  color: var(--faint);
  border-top: 1px solid var(--line);
  font-size: 10.5px;
  line-height: 1.75;
}

/* ---------------------------------------------------- 获取激活码 */

.contact-section {
  background:
    radial-gradient(circle at 8% 10%, rgba(220, 236, 225, 0.55), transparent 30%),
    radial-gradient(circle at 92% 8%, rgba(246, 230, 194, 0.5), transparent 32%),
    linear-gradient(180deg, rgba(255, 253, 248, 0.5), rgba(247, 244, 236, 0.85));
  border-top: 1px solid var(--line);
}

.contact-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 9px;
  margin: 0 0 20px;
  color: var(--muted);
  font-size: 12px;
}

.flow-step {
  padding: 7px 12px;
  background: rgba(255, 253, 248, 0.82);
  border: 1px solid var(--line);
  border-radius: 999px;
  line-height: 1.4;
  white-space: nowrap;
}

.flow-arrow {
  color: var(--coral);
  font-size: 12px;
  font-weight: 700;
}

.contact-pay-note {
  max-width: 760px;
  margin: 0 0 26px;
  padding: 13px 16px;
  color: var(--ink-soft);
  background: rgba(246, 230, 194, 0.52);
  border: 1px solid rgba(132, 100, 40, 0.16);
  border-radius: 14px;
  font-size: 12px;
  line-height: 1.75;
}

.contact-pay-note strong {
  color: var(--sun-deep);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.contact-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 22px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 26px;
  box-shadow: var(--shadow-sm);
}

.contact-card-head {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
}

.contact-index {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  flex: none;
  color: var(--mint-deep);
  background: var(--mint);
  border-radius: 50%;
  font-size: 10.5px;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.contact-card--qq .contact-index {
  color: var(--sky-deep);
  background: var(--sky);
}

.contact-card--pay .contact-index {
  color: var(--sun-deep);
  background: var(--sun);
}

.contact-card h3 {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 750;
  line-height: 1.4;
  letter-spacing: -0.02em;
}

.contact-card-head p {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 11.5px;
  line-height: 1.6;
}

.qr-button {
  display: block;
  width: 100%;
  margin-top: auto;
  padding: 10px 10px 8px;
  color: var(--faint);
  background: #fff;
  border: 1px solid var(--line-strong);
  border-radius: 20px;
  cursor: zoom-in;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.qr-button img {
  width: 100%;
  height: auto;
  aspect-ratio: 1;
  object-fit: contain;
  background: #fff;
  border-radius: 12px;
}

.qr-button:hover {
  transform: translateY(-2px);
  border-color: rgba(233, 101, 87, 0.32);
  box-shadow: var(--shadow-md);
}

.qr-zoom {
  display: inline-flex;
  margin-top: 8px;
  font-size: 10.5px;
  line-height: 1.4;
  letter-spacing: 0.03em;
}

.qr-caption {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 11.5px;
  line-height: 1.65;
  text-align: center;
}

.qq-number {
  color: var(--sky-deep);
  font-family: var(--mono);
  font-weight: 700;
  letter-spacing: 0.04em;
  user-select: all;
}

.contact-note {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-top: 18px;
  padding: 16px 18px;
  color: var(--muted);
  background: rgba(255, 253, 248, 0.72);
  border: 1px solid var(--line);
  border-radius: 18px;
  font-size: 11.5px;
  line-height: 1.8;
}

.contact-note svg {
  width: 19px;
  height: 19px;
  flex: none;
  margin-top: 2px;
  color: var(--mint-deep);
}

.contact-note p {
  margin: 0;
}

.contact-note strong {
  color: var(--ink-soft);
}

body.modal-open {
  overflow: hidden;
}

body.modal-open .music-dock {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.qr-modal {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: grid;
  place-items: center;
  padding: 18px;
}

.qr-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(29, 27, 23, 0.68);
  backdrop-filter: blur(7px);
  -webkit-backdrop-filter: blur(7px);
}

.qr-modal-card {
  position: relative;
  z-index: 1;
  width: min(92vw, 430px);
  max-height: calc(100vh - 36px);
  max-height: calc(100svh - 36px);
  overflow: auto;
  padding: 26px;
  text-align: center;
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 26px;
  box-shadow: 0 40px 100px -30px rgba(20, 18, 14, 0.65);
  overscroll-behavior: contain;
}

.qr-modal-card .kicker {
  margin-bottom: 6px;
}

.qr-modal-card h3 {
  margin: 8px 0 0;
  font-size: 1.4rem;
  font-weight: 780;
  letter-spacing: -0.03em;
}

.qr-modal-card img {
  width: min(100%, 330px);
  height: auto;
  aspect-ratio: 1;
  margin: 16px auto 0;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
}

.qr-modal-note {
  max-width: 330px;
  margin: 14px auto 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.75;
}

.qr-modal-actions {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 16px;
}

.qr-modal-actions .btn {
  min-width: 112px;
  justify-content: center;
}

.qr-modal-tip {
  max-width: 330px;
  margin: 14px auto 0;
  color: var(--faint);
  font-size: 10.5px;
  line-height: 1.7;
}

.qr-modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  padding: 0;
  color: var(--ink-soft);
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 50%;
  cursor: pointer;
}

.qr-modal-close svg {
  width: 16px;
  height: 16px;
}

.qr-modal-close:hover {
  color: var(--coral-deep);
  background: var(--coral-soft);
}

.qr-modal-card > .kicker {
  padding-right: 36px;
}

@media (max-width: 1080px) {
  .contact-grid {
    gap: 14px;
  }

  .contact-card {
    padding: 18px;
  }
}

@media (max-width: 900px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .contact-card {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 190px;
    grid-template-areas:
      "head qr"
      "caption qr";
    grid-template-rows: auto 1fr;
    align-items: start;
    gap: 6px 18px;
    padding: 18px 20px;
  }

  .contact-card-head {
    grid-area: head;
    margin-bottom: 0;
  }

  .qr-button {
    grid-area: qr;
    width: 100%;
    margin-top: 0;
  }

  .qr-caption {
    grid-area: caption;
    margin-top: 8px;
    text-align: left;
  }

  .contact-flow {
    margin-bottom: 16px;
  }

  .contact-pay-note {
    margin-bottom: 18px;
  }
}

@media (max-width: 680px) {
  .contact-flow {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 7px;
  }

  .flow-step {
    padding: 8px 10px;
    text-align: center;
  }

  .flow-arrow {
    display: none;
  }

  .contact-card {
    grid-template-columns: minmax(0, 1fr) 160px;
    gap: 6px 14px;
    padding: 16px;
    border-radius: 22px;
  }

  .contact-card h3 {
    font-size: 1.05rem;
  }

  .contact-card-head p {
    font-size: 11px;
  }

  .qr-button {
    padding: 7px 7px 5px;
    border-radius: 16px;
  }

  .qr-button img {
    border-radius: 10px;
  }

  .qr-zoom {
    margin-top: 5px;
    font-size: 9.5px;
  }

  .qr-caption {
    font-size: 10.5px;
  }
}

@media (max-width: 420px) {
  .contact-card {
    grid-template-columns: minmax(0, 1fr) 136px;
    padding: 14px;
  }

  .contact-index {
    width: 30px;
    height: 30px;
  }

  .qr-modal-card {
    padding: 22px 18px;
  }

  .qr-modal-actions .btn {
    min-width: 0;
    flex: 1;
  }
}

@media (max-width: 360px) {
  .contact-card {
    display: flex;
    flex-direction: column;
    align-items: stretch;
  }

  .contact-card-head {
    margin-bottom: 10px;
  }

  .qr-button {
    width: min(100%, 230px);
    margin: 0 auto;
  }

  .qr-caption {
    margin-top: 10px;
    text-align: center;
  }
}

/* ---------------------------------------------------- 常见问题 */

.faq-section {
  padding-top: 10px;
}

.faq-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
  align-items: start;
  gap: 68px;
}

.faq-intro {
  position: sticky;
  top: 108px;
}

.faq-intro h2 {
  margin: 14px 0 0;
  font-size: clamp(1.9rem, 3.2vw, 2.7rem);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -0.035em;
}

.faq-intro p {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.9;
}

.faq-tip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 22px;
  padding: 9px 13px;
  color: var(--mint-deep);
  background: rgba(220, 236, 225, 0.6);
  border: 1px solid rgba(76, 122, 100, 0.12);
  border-radius: 999px;
  font-size: 10.5px;
}

.faq-tip svg {
  width: 14px;
  height: 14px;
}

.faq-list {
  border-top: 1px solid var(--line);
}

.faq-item {
  border-bottom: 1px solid var(--line);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 19px 0;
  color: var(--ink);
  font-size: 14.5px;
  font-weight: 650;
  line-height: 1.55;
  list-style: none;
  cursor: pointer;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  flex: none;
  color: var(--coral-deep);
  font-size: 20px;
  font-weight: 400;
  line-height: 1;
  transition: transform 0.25s ease;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 42px 20px 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.9;
}

.faq-answer p {
  margin: 0 0 9px;
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

.faq-answer a {
  color: var(--mint-deep);
  text-underline-offset: 3px;
}

/* ---------------------------------------------------- 页脚 */

.site-footer {
  padding: 62px 0 96px;
  background: #efe9dc;
  border-top: 1px solid var(--line);
}

.footer-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 44px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 13px;
}

.footer-brand img {
  width: 45px;
  height: 45px;
  flex: none;
  border-radius: 13px;
}

.footer-brand strong {
  display: block;
  font-size: 14.5px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.footer-brand span {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 11px;
}

.footer-links {
  display: flex;
  gap: 64px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.footer-col > span {
  margin-bottom: 3px;
  color: var(--faint);
  font-size: 9.5px;
  font-weight: 650;
  letter-spacing: 0.13em;
}

.footer-col a {
  color: var(--muted);
  font-size: 11.5px;
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-col a:hover {
  color: var(--ink);
}

.footer-legal {
  display: grid;
  gap: 9px;
  max-width: 980px;
  margin-top: 40px;
  padding-top: 24px;
  color: var(--muted);
  border-top: 1px solid rgba(41, 39, 34, 0.1);
  font-size: 10.5px;
  line-height: 1.9;
}

.footer-legal p {
  margin: 0;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: 27px;
  color: var(--faint);
  font-size: 10px;
}

.footer-bottom a {
  color: var(--muted);
  text-decoration: none;
}

.footer-bottom a:hover {
  color: var(--ink);
}

/* ---------------------------------------------------- 音乐浮标 */

.music-dock {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 90;
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.music-dock.is-docked-away {
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
}

.music-pill {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 46px;
  padding: 8px 14px 8px 12px;
  color: var(--ink);
  background: rgba(255, 253, 248, 0.9);
  border: 1px solid rgba(41, 39, 34, 0.12);
  border-radius: 999px;
  box-shadow: 0 15px 36px -22px rgba(57, 47, 35, 0.55);
  backdrop-filter: blur(13px);
  -webkit-backdrop-filter: blur(13px);
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.2s ease,
    box-shadow 0.2s ease;
}

.music-pill:hover {
  background: var(--surface);
  box-shadow: 0 18px 40px -22px rgba(57, 47, 35, 0.6);
  transform: translateY(-2px);
}

.eq {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 2.5px;
  width: 17px;
  height: 16px;
  flex: none;
}

.eq i {
  display: block;
  width: 2.5px;
  height: 30%;
  background: var(--coral);
  border-radius: 3px;
  transform-origin: bottom;
}

.eq i:nth-child(2) {
  height: 72%;
}

.eq i:nth-child(3) {
  height: 48%;
}

.eq i:nth-child(4) {
  height: 86%;
}

.music-pill.is-playing .eq i {
  animation: eq 1.15s ease-in-out infinite;
}

.music-pill.is-playing .eq i:nth-child(2) {
  animation-delay: 0.16s;
}

.music-pill.is-playing .eq i:nth-child(3) {
  animation-delay: 0.32s;
}

.music-pill.is-playing .eq i:nth-child(4) {
  animation-delay: 0.08s;
}

.music-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  line-height: 1.2;
  text-align: left;
}

.music-title {
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.02em;
}

.music-state {
  color: var(--faint);
  font-size: 9px;
  letter-spacing: 0.02em;
}

.music-pill.is-unavailable {
  cursor: default;
  opacity: 0.75;
}

/* ---------------------------------------------------- 出现动画 */

.js .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 0.72s cubic-bezier(0.2, 0.7, 0.2, 1),
    transform 0.72s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.js .reveal.is-visible {
  opacity: 1;
  transform: none;
}

.features-grid .reveal:nth-child(2),
.gallery-grid .reveal:nth-child(2),
.stats-grid .reveal:nth-child(2) {
  transition-delay: 0.07s;
}

.features-grid .reveal:nth-child(3),
.gallery-grid .reveal:nth-child(3),
.stats-grid .reveal:nth-child(3) {
  transition-delay: 0.14s;
}

.features-grid .reveal:nth-child(4),
.stats-grid .reveal:nth-child(4) {
  transition-delay: 0.21s;
}

.features-grid .reveal:nth-child(5) {
  transition-delay: 0.28s;
}

.features-grid .reveal:nth-child(6) {
  transition-delay: 0.35s;
}

.hero-copy {
  animation: rise-in 0.8s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}

.hero-visual {
  animation: rise-in 0.9s 0.08s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes bob-card {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-7px);
  }
}

@keyframes bob-ball {
  0%,
  100% {
    transform: translateY(0) rotate(6deg);
  }
  50% {
    transform: translateY(-9px) rotate(2deg);
  }
}

@keyframes live-pulse {
  0%,
  100% {
    box-shadow: 0 0 0 3px rgba(120, 169, 140, 0.12);
  }
  50% {
    box-shadow: 0 0 0 6px rgba(120, 169, 140, 0.03);
  }
}

@keyframes eq {
  0%,
  100% {
    transform: scaleY(0.45);
  }
  50% {
    transform: scaleY(1);
  }
}

/* ---------------------------------------------------- 响应式 */

@media (max-width: 1080px) {
  .hero-grid {
    gap: 16px;
  }

  .float-card--date {
    left: -3%;
  }

  .float-card--offline {
    right: -2%;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .features-grid .reveal:nth-child(3) {
    transition-delay: 0.04s;
  }

  .features-grid .reveal:nth-child(4) {
    transition-delay: 0.1s;
  }

  .gallery-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr);
  }

  .download-card {
    gap: 32px;
    padding: 40px;
  }

  .faq-grid {
    gap: 44px;
  }
}

@media (max-width: 900px) {
  html {
    scroll-padding-top: 76px;
  }

  .shell {
    width: min(1160px, calc(100% - 40px));
  }

  .header-inner {
    min-height: 64px;
    gap: 16px;
  }

  .site-nav {
    display: none;
  }

  .hero {
    padding: 44px 0 50px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 46px;
  }

  .hero-copy {
    max-width: 660px;
  }

  .hero h1 {
    font-size: clamp(2.45rem, 8vw, 4rem);
  }

  .lede {
    font-size: 15.5px;
  }

  .hero-visual {
    min-height: 0;
    padding: 8px 0 4px;
  }

  .phone {
    width: min(274px, 74vw);
  }

  .float-card--date {
    top: -2%;
    left: 2%;
  }

  .float-card--offline {
    right: 2%;
    bottom: -2%;
  }

  .hero-halo {
    inset: 0 12%;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    padding: 12px 0;
  }

  .stat {
    padding: 21px 24px;
  }

  .stat:first-child {
    padding-left: 24px;
  }

  .stat:nth-child(3) {
    border-left: 0;
    padding-left: 24px;
  }

  .stat:nth-child(n + 3) {
    border-top: 1px solid var(--line);
  }

  .stat:nth-child(odd) {
    padding-left: 0;
  }

  .section {
    padding: 72px 0;
  }

  .member-panel {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 30px;
  }

  .member-copy p {
    max-width: 580px;
  }

  .gallery-grid {
    grid-template-columns: 1fr;
  }

  .gallery-side {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }

  .gallery-note {
    grid-column: 1 / -1;
  }

  .download-section {
    padding: 72px 0 82px;
  }

  .download-card {
    grid-template-columns: minmax(0, 1fr);
    gap: 30px;
    padding: 32px;
  }

  .download-info {
    width: 100%;
    max-width: 560px;
    min-width: 0;
  }

  .faq-grid {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .faq-intro {
    position: static;
  }

  .faq-intro p {
    max-width: 560px;
  }

  .faq-tip {
    margin-top: 16px;
  }

  .site-footer {
    padding-bottom: 94px;
  }

  .footer-top {
    flex-direction: column;
    gap: 28px;
  }

  .footer-links {
    gap: 52px;
  }
}

@media (max-width: 680px) {
  .shell {
    width: calc(100% - 32px);
  }

  .brand-copy small {
    display: none;
  }

  .brand-copy strong {
    font-size: 13.5px;
  }

  .brand img {
    width: 35px;
    height: 35px;
    border-radius: 10px;
  }

  .header-actions .btn {
    min-height: 37px;
    padding: 0 14px;
    font-size: 12px;
  }

  .header-actions .btn svg {
    display: none;
  }

  .hero {
    padding-top: 34px;
  }

  .hero h1 {
    font-size: clamp(2.3rem, 10vw, 3rem);
    letter-spacing: -0.045em;
  }

  .eyebrow {
    font-size: 10.5px;
    padding: 7px 12px;
  }

  .lede {
    margin-top: 18px;
    font-size: 14.5px;
    line-height: 1.85;
  }

  .hero-actions {
    margin-top: 24px;
  }

  .hero-actions .btn {
    flex: 1 1 auto;
    padding: 0 18px;
    font-size: 13.5px;
  }

  .hero-actions .btn--ghost {
    flex: 0 1 auto;
  }

  .hero-meta {
    font-size: 11px;
  }

  .counter {
    margin-top: 22px;
    padding: 13px 15px;
  }

  .counter-hint {
    display: none;
  }

  .counter-item strong {
    font-size: 21px;
  }

  .phone {
    width: min(258px, 72vw);
    padding: 7px;
    border-radius: 38px;
  }

  .phone-screen {
    border-radius: 31px;
  }

  .float-card {
    padding: 9px 11px;
    border-radius: 13px;
  }

  .float-card--date {
    top: -20px;
    left: -2px;
  }

  .float-card--offline {
    right: -3px;
    bottom: -16px;
  }

  .float-icon {
    width: 23px;
    height: 23px;
    border-radius: 7px;
  }

  .float-card strong {
    font-size: 10px;
  }

  .float-card small {
    font-size: 8.5px;
  }

  .hero-ball--red {
    top: -22px;
    right: 4%;
    width: 45px;
    height: 45px;
    font-size: 12px;
  }

  .hero-ball--blue {
    bottom: -26px;
    left: 2%;
    width: 36px;
    height: 36px;
    font-size: 10px;
  }

  .stat {
    padding: 18px 18px;
  }

  .stat:first-child {
    padding-left: 18px;
  }

  .stat:nth-child(3) {
    padding-left: 18px;
  }

  .stat:nth-child(odd) {
    padding-left: 0;
  }

  .stat strong {
    font-size: 1.6rem;
  }

  .stat span {
    font-size: 10.5px;
  }

  .section {
    padding: 62px 0;
  }

  .section-head {
    margin-bottom: 32px;
  }

  .section-head h2 {
    font-size: clamp(1.72rem, 7vw, 2.2rem);
  }

  .section-head p {
    font-size: 13.5px;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .feature-card {
    padding: 22px 21px 19px;
    border-radius: 21px;
  }

  .feature-card h3 {
    margin-top: 17px;
    font-size: 17px;
  }

  .feature-card p {
    font-size: 13px;
  }

  .member-panel {
    padding: 23px 20px;
    border-radius: 23px;
  }

  .member-panel h3 {
    font-size: 1.62rem;
  }

  .steps li {
    padding: 13px 14px;
  }

  .price-tiers {
    gap: 8px;
  }

  .price-tier {
    padding: 14px 8px 12px;
  }

  .price-name {
    font-size: 10px;
  }

  .price-amount {
    font-size: 1.6rem;
  }

  .price-desc {
    font-size: 9.5px;
  }

  .video-shell {
    border-radius: 20px;
  }

  .play-bubble {
    width: 58px;
    height: 58px;
  }

  .play-bubble svg {
    width: 20px;
    height: 20px;
  }

  .cover-text {
    font-size: 12px;
  }

  .video-caption {
    display: block;
  }

  .video-more {
    margin-top: 4px;
  }

  .video-more summary {
    text-align: left;
  }

  .gallery-side {
    grid-template-columns: 1fr;
  }

  .gallery-note {
    grid-column: auto;
  }

  .gallery-card {
    border-radius: 21px;
    padding: 9px;
  }

  .gallery-img {
    border-radius: 14px;
  }

  .download-section {
    padding: 62px 0 72px;
  }

  .download-card {
    padding: 25px 20px;
    border-radius: 25px;
  }

  .download-copy h2 {
    font-size: clamp(1.85rem, 8vw, 2.4rem);
  }

  .br-mobile {
    display: inline;
  }

  .download-copy > p {
    font-size: 13px;
  }

  .download-actions {
    align-items: stretch;
    flex-direction: column;
    gap: 10px;
  }

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

  .download-size {
    text-align: center;
  }

  .checksum {
    padding-left: 10px;
  }

  .checksum-label {
    display: none;
  }

  .faq-section {
    padding-top: 0;
  }

  .faq-item summary {
    padding: 17px 0;
    font-size: 13.5px;
  }

  .faq-answer {
    padding-right: 24px;
    font-size: 12.5px;
  }

  .site-footer {
    padding-top: 48px;
    padding-bottom: 92px;
  }

  .footer-links {
    gap: 44px;
  }

  .footer-legal {
    margin-top: 30px;
    font-size: 10px;
  }

  .music-dock {
    right: 12px;
    bottom: 12px;
  }

  .music-pill {
    min-height: 42px;
    padding: 7px 12px 7px 11px;
    gap: 8px;
  }

  .music-title {
    font-size: 10.5px;
  }

  .music-state {
    font-size: 8.5px;
  }
}

@media (max-width: 380px) {
  .hero-actions .btn {
    flex: 1 1 100%;
  }

  .hero-actions .btn--ghost {
    flex: 1 1 100%;
  }

  .counter-row {
    gap: 11px;
  }

  .counter-item strong {
    font-size: 19px;
  }

  .float-card--date {
    display: none;
  }

  .footer-links {
    gap: 34px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  .js .reveal {
    opacity: 1;
    transform: none;
  }
}