/* ============================================================
   鲸岛AI 官网样式 · 配色取自 App Logo（深紫夜空 × 紫罗兰光晕）
   ============================================================ */

:root {
  --bg-deep:        #140828;
  --bg-2:           #1d0c3d;
  --purple-900:     #2a1454;
  --primary:        #7c3aed;
  --violet:         #8b5cf6;
  --lavender:       #a78bfa;
  --lavender-light: #c4b5fd;
  --mist:           #ede9fe;
  --text:           #f3eeff;
  --text-dim:       #b6a4e2;
  --text-faint:     #8f7cc0;
  --card:           rgba(139, 92, 246, .07);
  --card-hover:     rgba(139, 92, 246, .13);
  --border:         rgba(167, 139, 250, .22);
  --border-strong:  rgba(196, 181, 253, .45);
  --glow:           rgba(139, 92, 246, .45);
  --radius:         18px;
  --header-h:       76px;
  --ease:           cubic-bezier(.22, .8, .32, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 12px);
}

body {
  font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, sans-serif;
  background:
    radial-gradient(1100px 600px at 85% -10%, rgba(124, 58, 237, .28), transparent 60%),
    radial-gradient(900px 550px at -10% 30%, rgba(139, 92, 246, .16), transparent 60%),
    linear-gradient(180deg, var(--bg-2) 0%, var(--bg-deep) 100%);
  color: var(--text);
  line-height: 1.75;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--violet); color: #fff; }

img { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { font-family: inherit; }

.container {
  width: min(1180px, 92%);
  margin: 0 auto;
}
.container-narrow { width: min(860px, 92%); }

/* ---------------- 顶部导航 ---------------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--header-h);
  z-index: 100;
  transition: background .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(20, 8, 40, .82);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom-color: var(--border);
  box-shadow: 0 10px 40px rgba(10, 2, 24, .45);
}
.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-img {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(145deg, var(--purple-900), var(--primary));
  box-shadow: 0 0 0 1px var(--border-strong), 0 6px 18px rgba(124, 58, 237, .45);
  object-fit: cover;
}
.brand-name {
  font-size: 1.28rem;
  font-weight: 800;
  letter-spacing: .5px;
}
.brand-name em {
  font-style: normal;
  background: linear-gradient(120deg, var(--lavender-light), var(--violet));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-link {
  padding: 9px 16px;
  border-radius: 999px;
  font-size: .95rem;
  color: var(--text-dim);
  transition: color .25s, background .25s;
}
.nav-link:hover { color: #fff; background: rgba(139, 92, 246, .14); }
.nav-link.active { color: #fff; background: rgba(139, 92, 246, .2); }

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-left: 8px;
  color: #fff !important;
  background: linear-gradient(120deg, var(--primary), var(--violet)) !important;
  box-shadow: 0 6px 20px var(--glow);
  transition: transform .25s var(--ease), box-shadow .25s var(--ease);
}
.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px var(--glow);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  padding: 8px;
  cursor: pointer;
}
.nav-toggle span {
  width: 24px;
  height: 2px;
  border-radius: 2px;
  background: var(--text);
  transition: transform .3s var(--ease), opacity .3s;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------------- Hero 首屏 ---------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: calc(var(--header-h) + 48px) 0 70px;
  overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: .55;
  animation: drift 14s ease-in-out infinite alternate;
}
.orb-1 { width: 420px; height: 420px; right: -80px; top: -60px;
  background: radial-gradient(circle, rgba(139, 92, 246, .5), transparent 70%); }
.orb-2 { width: 360px; height: 360px; left: -120px; bottom: -80px;
  background: radial-gradient(circle, rgba(124, 58, 237, .42), transparent 70%);
  animation-delay: -6s; }
@keyframes drift {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to   { transform: translate3d(30px, -24px, 0) scale(1.08); }
}
.star {
  position: absolute;
  width: 4px; height: 4px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 10px 2px rgba(196, 181, 253, .9);
  animation: twinkle 3.4s ease-in-out infinite;
}
.star-1 { left: 8%;  top: 22%; }
.star-2 { left: 20%; top: 68%; animation-delay: .8s; }
.star-3 { left: 46%; top: 12%; animation-delay: 1.6s; }
.star-4 { right: 14%; top: 30%; animation-delay: 2.2s; }
.star-5 { right: 34%; top: 74%; animation-delay: 1.1s; }
.star-6 { left: 62%; top: 46%; animation-delay: 2.8s; width: 3px; height: 3px; }
@keyframes twinkle {
  0%, 100% { opacity: .25; transform: scale(.8); }
  50%      { opacity: 1;   transform: scale(1.15); }
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  align-items: center;
  gap: 48px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px;
  border-radius: 999px;
  font-size: .85rem;
  color: var(--lavender-light);
  background: rgba(139, 92, 246, .12);
  border: 1px solid var(--border);
  margin-bottom: 22px;
}
.hero-title {
  font-size: clamp(2.1rem, 4.2vw, 3.4rem);
  font-weight: 900;
  line-height: 1.28;
  letter-spacing: 1px;
  margin-bottom: 20px;
}
.hero-title em {
  font-style: normal;
  background: linear-gradient(115deg, var(--lavender-light) 10%, var(--violet) 60%, #d8b4fe);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 40px rgba(139, 92, 246, .35);
}
.hero-desc {
  max-width: 560px;
  color: var(--text-dim);
  font-size: 1.02rem;
  margin-bottom: 26px;
}

.hero-meta {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  padding: 10px 18px;
  border-radius: 14px;
  background: rgba(42, 20, 84, .5);
  border: 1px solid var(--border);
  margin-bottom: 26px;
}
.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .9rem;
  color: var(--text-dim);
}
.meta-item svg { color: var(--lavender); flex-shrink: 0; }
.meta-item b { color: var(--lavender-light); font-weight: 700; }
.meta-divider { width: 1px; height: 16px; background: var(--border-strong); }

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 38px;
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 13px 30px;
  border-radius: 999px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform .28s var(--ease), box-shadow .28s var(--ease), background .28s, border-color .28s;
}
.btn-primary {
  color: #fff;
  background: linear-gradient(120deg, var(--primary), var(--violet));
  box-shadow: 0 10px 30px var(--glow);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 16px 40px var(--glow); }
.btn-ghost {
  color: var(--lavender-light);
  border: 1px solid var(--border-strong);
  background: rgba(139, 92, 246, .06);
}
.btn-ghost:hover { background: rgba(139, 92, 246, .16); transform: translateY(-3px); }

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 38px;
}
.hero-stats li { display: flex; flex-direction: column; }
.hero-stats b {
  font-size: 1.55rem;
  font-weight: 900;
  background: linear-gradient(120deg, #fff, var(--lavender-light));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-stats span { font-size: .82rem; color: var(--text-faint); }

/* --------- 首屏截图堆叠（悬停查看对应截图） --------- */
.hero-shots { display: flex; flex-direction: column; align-items: center; }
.shots-stage {
  position: relative;
  width: 530px;
  max-width: 100%;
  height: 560px;
}
.shot {
  position: absolute;
  width: 235px;
  border-radius: 30px;
  padding: 9px;
  background: linear-gradient(160deg, rgba(196, 181, 253, .5), rgba(124, 58, 237, .18) 40%, rgba(42, 20, 84, .5));
  border: 1px solid var(--border-strong);
  box-shadow: 0 24px 60px rgba(10, 2, 24, .6);
  cursor: pointer;
  transition: transform .5s var(--ease), box-shadow .5s var(--ease), opacity .45s var(--ease), filter .45s var(--ease);
}
.shot-1 { left: 4px;   top: 64px; transform: rotate(-10deg); z-index: 1; }
.shot-2 { left: 148px; top: 4px;  z-index: 2; }
.shot-3 { left: 292px; top: 64px; transform: rotate(10deg); z-index: 1; }

/* 悬停：当前截图置顶放大，其余变暗——鼠标放哪张就能看哪张 */
.shots-stage:hover .shot:not(:hover) {
  opacity: .5;
  filter: saturate(.55) brightness(.75);
}
.shot:hover,
.shot:focus-visible,
.shot.active {
  z-index: 10;
  transform: rotate(0deg) translateY(-14px) scale(1.09);
  box-shadow: 0 34px 80px rgba(124, 58, 237, .5), 0 0 0 1px var(--border-strong);
}

.shot-screen {
  position: relative;
  height: 470px;
  border-radius: 23px;
  overflow: hidden;
  background:
    radial-gradient(140px 120px at 80% 0%, rgba(196, 181, 253, .35), transparent 70%),
    linear-gradient(175deg, #3b1d77 0%, #241048 55%, #180a33 100%);
}
/* 用户填入截图地址后，img 将完整覆盖占位界面 */
.shot-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 2;
}
/* 占位模拟界面（img 为空时可见） */
.mock {
  position: absolute;
  inset: 0;
  z-index: 1;
  padding: 14px 12px 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.mock-bar { display: flex; gap: 5px; margin-bottom: 4px; }
.mock-bar i { width: 7px; height: 7px; border-radius: 50%; background: rgba(196, 181, 253, .5); }
.mock-bar i:first-child { background: var(--violet); }

.mock-msg {
  max-width: 78%;
  padding: 9px 13px;
  border-radius: 15px;
  font-size: .74rem;
  line-height: 1.5;
  color: var(--text);
}
.mock-msg.l { align-self: flex-start; background: rgba(139, 92, 246, .22); border: 1px solid var(--border); border-bottom-left-radius: 5px; }
.mock-msg.r { align-self: flex-end; background: linear-gradient(120deg, var(--primary), var(--violet)); border-bottom-right-radius: 5px; }

.mock-input {
  margin-top: auto;
  padding: 9px 14px;
  border-radius: 999px;
  background: rgba(20, 8, 40, .7);
  border: 1px solid var(--border);
  font-size: .72rem;
  color: var(--text-faint);
}

.mock-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px;
  border-radius: 15px;
  background: rgba(139, 92, 246, .12);
  border: 1px solid var(--border);
}
.mock-avatar {
  width: 38px; height: 38px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-size: .95rem;
  font-weight: 800;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--violet));
  flex-shrink: 0;
}
.mock-avatar.alt  { background: linear-gradient(135deg, #6d28d9, #a78bfa); }
.mock-avatar.alt2 { background: linear-gradient(135deg, #4c1d95, #8b5cf6); }
.mock-lines { display: flex; flex-direction: column; gap: 6px; flex: 1; }
.mock-lines b { font-size: .74rem; font-weight: 700; color: var(--mist); }
.mock-lines i { height: 6px; border-radius: 3px; background: rgba(196, 181, 253, .25); }
.mock-lines i:last-child { width: 60%; }

.mock-voice {
  margin-top: 26px;
  padding: 22px 14px 16px;
  border-radius: 18px;
  background: rgba(139, 92, 246, .14);
  border: 1px solid var(--border);
  text-align: center;
}
.mock-wave { display: inline-flex; align-items: flex-end; gap: 4px; height: 34px; margin-bottom: 10px; }
.mock-wave i {
  width: 5px;
  border-radius: 3px;
  background: linear-gradient(180deg, var(--lavender-light), var(--violet));
  animation: wave 1.1s ease-in-out infinite;
}
.mock-wave i:nth-child(1) { height: 14px; animation-delay: 0s; }
.mock-wave i:nth-child(2) { height: 26px; animation-delay: .15s; }
.mock-wave i:nth-child(3) { height: 34px; animation-delay: .3s; }
.mock-wave i:nth-child(4) { height: 22px; animation-delay: .45s; }
.mock-wave i:nth-child(5) { height: 12px; animation-delay: .6s; }
@keyframes wave { 0%, 100% { transform: scaleY(.55); } 50% { transform: scaleY(1.1); } }
.mock-voice p { font-size: .78rem; font-weight: 700; color: var(--mist); }
.mock-voice small { font-size: .66rem; color: var(--text-faint); }

.shot-tag {
  position: absolute;
  left: 50%;
  bottom: -16px;
  transform: translateX(-50%);
  padding: 5px 16px;
  border-radius: 999px;
  font-size: .78rem;
  font-weight: 700;
  white-space: nowrap;
  color: var(--lavender-light);
  background: rgba(20, 8, 40, .92);
  border: 1px solid var(--border-strong);
  box-shadow: 0 8px 20px rgba(10, 2, 24, .5);
}
.shots-hint {
  margin-top: 30px;
  font-size: .85rem;
  color: var(--text-faint);
  letter-spacing: 1px;
}

/* 向下滚动指示 */
.hero-scroll {
  position: relative;
  width: 26px;
  height: 44px;
  margin: 42px auto 0;
  border: 2px solid var(--border-strong);
  border-radius: 999px;
  display: block;
}
.hero-scroll span {
  position: absolute;
  left: 50%;
  top: 8px;
  width: 4px;
  height: 9px;
  margin-left: -2px;
  border-radius: 2px;
  background: var(--lavender-light);
  animation: scrollDown 1.8s ease-in-out infinite;
}
@keyframes scrollDown {
  0%   { transform: translateY(0); opacity: 1; }
  70%  { transform: translateY(14px); opacity: 0; }
  100% { transform: translateY(0); opacity: 0; }
}

/* ---------------- 通用区块 ---------------- */
.section { padding: 110px 0; position: relative; }
.section-alt {
  background: linear-gradient(180deg, rgba(42, 20, 84, .28), rgba(20, 8, 40, .1));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.section-head { text-align: center; margin-bottom: 60px; }
.section-tag {
  display: inline-block;
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: 4px;
  color: var(--violet);
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  font-weight: 900;
  letter-spacing: 1px;
  margin-bottom: 12px;
}
.section-title em {
  font-style: normal;
  background: linear-gradient(115deg, var(--lavender-light), var(--violet));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.section-desc { color: var(--text-dim); font-size: 1rem; }

/* ---------------- 功能亮点 ---------------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.feature-card {
  padding: 34px 28px;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--border);
  transition: transform .4s var(--ease), background .4s, border-color .4s, box-shadow .4s;
}
.feature-card:hover {
  transform: translateY(-8px);
  background: var(--card-hover);
  border-color: var(--border-strong);
  box-shadow: 0 20px 50px rgba(10, 2, 24, .5);
}
.feature-icon {
  display: inline-grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border-radius: 16px;
  margin-bottom: 20px;
  color: var(--lavender-light);
  background: linear-gradient(135deg, rgba(124, 58, 237, .35), rgba(139, 92, 246, .15));
  border: 1px solid var(--border-strong);
  box-shadow: 0 8px 22px rgba(124, 58, 237, .28);
}
.feature-icon svg { width: 26px; height: 26px; }
.feature-card h3 { font-size: 1.12rem; font-weight: 800; margin-bottom: 10px; }
.feature-card p { font-size: .92rem; color: var(--text-dim); }

/* ---------------- 用户评价 ---------------- */
.review-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.review-card {
  padding: 26px;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--border);
  transition: transform .4s var(--ease), border-color .4s, box-shadow .4s;
}
.review-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-strong);
  box-shadow: 0 18px 44px rgba(10, 2, 24, .45);
}
.review-card header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}
/* 汉字头像（非 img） */
.avatar {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 1.1rem;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, .18), 0 6px 16px rgba(124, 58, 237, .35);
}
.av-1 { background: linear-gradient(135deg, #7c3aed, #a78bfa); }
.av-2 { background: linear-gradient(135deg, #5b21b6, #8b5cf6); }
.av-3 { background: linear-gradient(135deg, #9333ea, #c4b5fd); }
.av-4 { background: linear-gradient(135deg, #4c1d95, #7c3aed); }
.av-5 { background: linear-gradient(135deg, #6d28d9, #b794f6); }
.av-6 { background: linear-gradient(135deg, #581c87, #9f7aea); }

.review-who { flex: 1; display: flex; flex-direction: column; }
.review-who b { font-size: .95rem; }
.review-who i { font-style: normal; font-size: .76rem; color: var(--text-faint); }
.stars { font-size: .8rem; letter-spacing: 2px; color: #e0aaff; }
.review-card p { font-size: .92rem; color: var(--text-dim); }

/* ---------------- 常见问题 ---------------- */
.faq-list { display: flex; flex-direction: column; gap: 14px; }
.faq-item {
  border-radius: 16px;
  background: var(--card);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: border-color .3s, background .3s;
}
.faq-item.open {
  border-color: var(--border-strong);
  background: var(--card-hover);
}
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  background: none;
  border: 0;
  color: var(--text);
  font-size: 1.02rem;
  font-weight: 700;
  text-align: left;
  cursor: pointer;
}
.faq-icon {
  position: relative;
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}
.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  inset: 0;
  margin: auto;
  background: var(--lavender-light);
  border-radius: 2px;
  transition: transform .35s var(--ease);
}
.faq-icon::before { width: 14px; height: 2px; }
.faq-icon::after  { width: 2px; height: 14px; }
.faq-item.open .faq-icon::after { transform: rotate(90deg); }
.faq-item.open .faq-icon::before { transform: rotate(180deg); }

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .45s var(--ease);
}
.faq-a p {
  padding: 0 24px 22px;
  font-size: .93rem;
  color: var(--text-dim);
}

/* ---------------- 下载区域 ---------------- */
.section-download { padding-bottom: 130px; }
.download-card {
  position: relative;
  text-align: center;
  padding: 70px 30px 54px;
  border-radius: 28px;
  background:
    radial-gradient(600px 300px at 50% -60px, rgba(139, 92, 246, .4), transparent 70%),
    linear-gradient(160deg, #2a1454, #1a0a38 70%);
  border: 1px solid var(--border-strong);
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(10, 2, 24, .6);
}
.download-glow {
  position: absolute;
  left: 50%;
  bottom: -180px;
  width: 560px;
  height: 320px;
  transform: translateX(-50%);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(139, 92, 246, .4), transparent 70%);
  filter: blur(60px);
  pointer-events: none;
}
.download-logo {
  width: 84px;
  height: 84px;
  margin: 0 auto 24px;
  border-radius: 22px;
  object-fit: cover;
  background: linear-gradient(145deg, var(--purple-900), var(--primary));
  box-shadow: 0 0 0 1px var(--border-strong), 0 14px 40px rgba(124, 58, 237, .55);
}
.download-title { font-size: clamp(1.6rem, 3vw, 2.3rem); font-weight: 900; margin-bottom: 12px; }
.download-desc { color: var(--text-dim); margin-bottom: 34px; }

.btn-download {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 11px;
  padding: 17px 52px;
  border-radius: 999px;
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 1px;
  color: #fff;
  background: linear-gradient(120deg, var(--primary), var(--violet) 55%, #a855f7);
  box-shadow: 0 14px 44px var(--glow), inset 0 1px 0 rgba(255, 255, 255, .25);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
  animation: pulse 2.6s ease-in-out infinite;
}
.btn-download:hover { transform: translateY(-4px) scale(1.03); box-shadow: 0 20px 60px var(--glow); }
@keyframes pulse {
  0%, 100% { box-shadow: 0 14px 44px var(--glow), inset 0 1px 0 rgba(255, 255, 255, .25); }
  50%      { box-shadow: 0 14px 54px rgba(168, 85, 247, .65), inset 0 1px 0 rgba(255, 255, 255, .25); }
}

.download-info {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px 30px;
  margin-top: 32px;
}
.download-info li { font-size: .9rem; color: var(--text-dim); }
.download-info b { color: var(--lavender-light); }
.download-tip { margin-top: 16px; font-size: .8rem; color: var(--text-faint); }

/* ---------------- 页脚 ---------------- */
.site-footer {
  border-top: 1px solid var(--border);
  background: rgba(14, 5, 30, .6);
  padding: 46px 0 0;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 26px;
  padding-bottom: 34px;
}
.footer-brand { display: flex; align-items: center; gap: 14px; }
.footer-logo { width: 48px; height: 48px; }
.footer-name { font-weight: 800; font-size: 1.05rem; }
.footer-name em { font-style: normal; color: var(--lavender); }
.footer-copy { font-size: .84rem; color: var(--text-faint); }
.footer-nav { display: flex; flex-wrap: wrap; gap: 6px 26px; }
.footer-nav a { font-size: .9rem; color: var(--text-dim); transition: color .25s; }
.footer-nav a:hover { color: var(--lavender-light); }
.footer-bottom {
  text-align: center;
  padding: 18px 0;
  border-top: 1px solid rgba(167, 139, 250, .12);
  font-size: .8rem;
  color: var(--text-faint);
}

/* ---------------- 滚动浮现动画 ---------------- */
.reveal {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
}
.reveal.visible { opacity: 1; transform: none; }

/* ---------------- 自适应 ---------------- */
@media (max-width: 1080px) {
  .hero-inner { gap: 36px; }
  .shots-stage { transform: scale(.9); transform-origin: top center; height: 520px; }
}

@media (max-width: 960px) {
  .hero { padding-top: calc(var(--header-h) + 30px); }
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-desc { margin-inline: auto; }
  .hero-meta { justify-content: center; }
  .hero-actions, .hero-stats { justify-content: center; }
  .hero-shots { order: 2; }
  .shots-stage { transform: scale(.82); height: 470px; }

  .feature-grid, .review-grid { grid-template-columns: repeat(2, 1fr); }
  .section { padding: 84px 0; }
}

@media (max-width: 760px) {
  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 18px 5%;
    background: rgba(20, 8, 40, .97);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 30px 60px rgba(10, 2, 24, .6);
    transform: translateY(-16px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: transform .35s var(--ease), opacity .35s, visibility .35s;
  }
  .main-nav.open { transform: none; opacity: 1; visibility: visible; pointer-events: auto; }
  .nav-link { padding: 13px 18px; border-radius: 12px; font-size: 1rem; }
  .nav-cta { justify-content: center; margin: 8px 0 0; }

  .shots-stage { transform: scale(.66); height: 385px; }
  .shots-hint { margin-top: 6px; }
  .hero-stats { gap: 8px 26px; }
}

@media (max-width: 560px) {
  .feature-grid, .review-grid { grid-template-columns: 1fr; }
  .section { padding: 66px 0; }
  .hero-title br { display: none; }
  .hero { min-height: auto; }
  .hero-meta { width: 100%; justify-content: center; }
  .shots-stage { transform: scale(.58); height: 340px; margin-bottom: -30px; }
  .btn-download { width: 100%; justify-content: center; }
  .download-card { padding: 54px 22px 44px; }
  .footer-inner { flex-direction: column; text-align: center; }
}

/* 尊重系统减动效偏好 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  html { scroll-behavior: auto; }
}