:root {
  --bg: #0b0b0f;
  --bg-soft: #12121a;
  --card: #17171f;
  --card-hover: #1d1d28;
  --border: rgba(255, 255, 255, 0.08);
  --text: #f2f2f5;
  --text-dim: #9b9ba8;
  --pink: #f7a8c0;
  --pink-deep: #e26d8a;
  --purple: #8b7cf6;
  --grad: linear-gradient(135deg, #e26d8a 0%, #8b7cf6 100%);
  --radius: 18px;
  --maxw: 1160px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* ---------- 顶部导航 ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  backdrop-filter: blur(18px);
  background: rgba(11, 11, 15, 0.72);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  font-weight: 700;
  letter-spacing: 1px;
}

.brand-dot {
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--grad);
  box-shadow: 0 0 14px rgba(226, 109, 138, 0.8);
  animation: pulse 2.6s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.18); opacity: 0.75; }
}

.brand-name { font-size: 19px; }
.brand-en { font-size: 12px; color: var(--text-dim); letter-spacing: 2px; margin-top: 3px; }

.nav-links {
  display: flex;
  gap: 28px;
  font-size: 14.5px;
  color: var(--text-dim);
}

.nav-links a { transition: color 0.2s; }
.nav-links a:hover { color: var(--text); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 999px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 6px 24px rgba(226, 109, 138, 0.35);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 30px rgba(226, 109, 138, 0.5);
}

.btn-ghost {
  border: 1px solid var(--border);
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}

.btn-ghost:hover { background: rgba(255, 255, 255, 0.09); }
.btn-download-nav { padding: 9px 20px; font-size: 14px; }
.btn-lg { padding: 14px 30px; font-size: 16px; line-height: 1.4; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 24px 80px;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(110px);
  opacity: 0.5;
  pointer-events: none;
}

.hero-glow-a { width: 480px; height: 480px; top: -120px; left: -120px; background: #e26d8a; }
.hero-glow-b { width: 420px; height: 420px; bottom: -140px; right: -80px; background: #8b7cf6; }

.hero-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 64px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-kicker, .section-kicker {
  font-size: 12.5px;
  letter-spacing: 3px;
  color: var(--pink);
  text-transform: uppercase;
  margin-bottom: 18px;
  font-weight: 600;
}

.hero-title {
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1.18;
  font-weight: 800;
  letter-spacing: 1px;
  margin-bottom: 22px;
}

.hero-title em {
  font-style: normal;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-sub {
  color: var(--text-dim);
  font-size: 16.5px;
  max-width: 480px;
  margin-bottom: 34px;
}

.hero-cta { display: flex; gap: 14px; margin-bottom: 34px; flex-wrap: wrap; }

.hero-badges {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 22px;
  font-size: 14px;
  color: #c8c8d4;
}

.hero-badges li::marker { content: ""; }

.scroll-hint {
  position: absolute;
  bottom: 26px; left: 50%;
  transform: translateX(-50%);
  width: 24px; height: 38px;
  border: 1.5px solid var(--border);
  border-radius: 14px;
  display: flex;
  justify-content: center;
  padding-top: 7px;
}

.scroll-hint span {
  width: 4px; height: 8px;
  border-radius: 3px;
  background: var(--pink);
  animation: drop 1.6s ease-in-out infinite;
}

@keyframes drop {
  0% { transform: translateY(0); opacity: 1; }
  70% { transform: translateY(12px); opacity: 0; }
  100% { transform: translateY(0); opacity: 0; }
}

/* ---------- 轮播 ---------- */
.carousel { position: relative; }

.carousel-viewport {
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.55);
}

.carousel-track {
  display: flex;
  transition: transform 0.55s cubic-bezier(0.22, 1, 0.36, 1);
}

.carousel-slide {
  min-width: 100%;
  position: relative;
  aspect-ratio: 3 / 4;
  background: var(--card);
}

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

.carousel-slide::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(11, 11, 15, 0.92) 0%, rgba(11, 11, 15, 0.15) 45%, transparent 70%);
}

.carousel-cap {
  position: absolute;
  left: 22px; right: 22px; bottom: 20px;
  z-index: 2;
}

.carousel-cap h3 { font-size: 24px; font-weight: 800; letter-spacing: 1px; }
.carousel-cap p { font-size: 14px; color: #e4e4ee; margin-top: 3px; text-shadow: 0 1px 8px rgba(0, 0, 0, 0.8); }
.carousel-cap .cap-meta { margin-top: 8px; font-size: 12.5px; color: #fbd3e0; text-shadow: 0 1px 8px rgba(0, 0, 0, 0.8); }

.carousel-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 38px; height: 38px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: rgba(11, 11, 15, 0.7);
  color: #fff;
  font-size: 20px;
  cursor: pointer;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(8px);
  transition: background 0.2s, transform 0.2s;
}

.carousel-arrow:hover { background: rgba(255, 255, 255, 0.14); }
.carousel-arrow.prev { left: 12px; }
.carousel-arrow.next { right: 12px; }

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 7px;
  margin-top: 16px;
}

.carousel-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.22);
  border: none;
  cursor: pointer;
  transition: width 0.25s, background 0.25s;
}

.carousel-dot.active { width: 22px; border-radius: 5px; background: var(--pink); }

/* ---------- 通用 section ---------- */
.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 110px 24px;
}

.section-alt { max-width: none; background: var(--bg-soft); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-alt .feature-grid { max-width: var(--maxw); margin: 0 auto; }

.section-head { text-align: center; margin-bottom: 56px; }

.section-title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  letter-spacing: 1px;
  margin-bottom: 14px;
}

.section-sub { color: var(--text-dim); font-size: 15.5px; max-width: 560px; margin: 0 auto; }

/* ---------- 角色网格 ---------- */
.char-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 22px;
}

.char-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--card);
  aspect-ratio: 3 / 4.2;
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s;
}

.char-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 22px 48px rgba(0, 0, 0, 0.5);
  border-color: rgba(247, 168, 192, 0.45);
}

.char-card img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform 0.5s ease;
}

.char-card:hover img { transform: scale(1.05); }

.char-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(11, 11, 15, 0.95) 6%, rgba(11, 11, 15, 0.25) 45%, transparent 70%);
}

.char-card-body {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 18px;
  z-index: 2;
}

.char-card-name { font-size: 20px; font-weight: 800; letter-spacing: 1px; text-shadow: 0 1px 10px rgba(0, 0, 0, 0.7); }
.char-card-tag { font-size: 13px; color: #e4e4ee; margin-top: 3px; text-shadow: 0 1px 8px rgba(0, 0, 0, 0.8); }
.char-card-meta {
  margin-top: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  color: #fbd3e0;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.8);
}

.char-card-diff {
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid rgba(247, 168, 192, 0.35);
  background: rgba(247, 168, 192, 0.08);
}

/* ---------- 功能网格 ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 22px;
}

.feature {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 28px;
  transition: transform 0.25s ease, background 0.25s ease;
}

.feature:hover { transform: translateY(-4px); background: var(--card-hover); }

.feature-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  background: color-mix(in srgb, var(--fg) 14%, transparent);
  margin-bottom: 18px;
}

.feature h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; letter-spacing: 0.5px; }
.feature p { font-size: 14px; color: var(--text-dim); }

/* ---------- 下载区 ---------- */
.download-card {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 28px;
  padding: 56px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
}

.download-copy .section-title { margin-bottom: 10px; }
.download-version {
  display: inline-block;
  font-size: 13px;
  color: var(--pink);
  background: rgba(247, 168, 192, 0.1);
  border: 1px solid rgba(247, 168, 192, 0.3);
  border-radius: 999px;
  padding: 5px 14px;
  margin-bottom: 16px;
}

.download-note { color: var(--text-dim); font-size: 14.5px; margin-bottom: 28px; }
.download-fallback { margin-top: 14px; font-size: 13px; color: var(--text-dim); }

.btn-android { font-size: 18px; line-height: 1; }

.phone-frame {
  width: min(280px, 80%);
  margin: 0 auto;
  aspect-ratio: 9 / 18.5;
  border-radius: 34px;
  border: 8px solid #26262f;
  background: #0e0e14;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.6);
  position: relative;
  overflow: hidden;
}

.phone-screen {
  position: absolute;
  inset: 0;
  padding: 42px 14px 18px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 10px;
  background:
    radial-gradient(120% 60% at 80% 0%, rgba(139, 124, 246, 0.22), transparent 55%),
    radial-gradient(120% 60% at 0% 100%, rgba(226, 109, 138, 0.2), transparent 55%),
    #0e0e14;
}

.phone-screen::before {
  content: "";
  position: absolute;
  top: 12px; left: 50%;
  transform: translateX(-50%);
  width: 92px; height: 24px;
  background: #1c1c24;
  border-radius: 14px;
}

.phone-msg {
  max-width: 82%;
  padding: 9px 13px;
  border-radius: 16px;
  font-size: 12.5px;
  position: relative;
  animation: rise 0.5s ease both;
}

.phone-msg span { display: block; font-size: 9.5px; color: rgba(255, 255, 255, 0.4); margin-top: 3px; }

.phone-msg.left {
  background: #23232e;
  color: var(--text);
  border-bottom-left-radius: 5px;
  align-self: flex-start;
}

.phone-msg.right {
  background: var(--grad);
  color: #fff;
  border-bottom-right-radius: 5px;
  align-self: flex-end;
}

.phone-msg.typing { display: flex; align-items: center; gap: 4px; }
.phone-msg.typing i {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: #bbb;
  animation: blink 1.2s ease-in-out infinite;
}
.phone-msg.typing i:nth-child(2) { animation-delay: 0.2s; }
.phone-msg.typing i:nth-child(3) { animation-delay: 0.4s; }
.phone-msg.typing span { margin: 0 0 0 6px; display: inline; }

@keyframes blink { 0%, 100% { opacity: 0.25; } 50% { opacity: 1; } }
@keyframes rise { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* ---------- 页脚 ---------- */
.footer {
  background: #08080b;
  border-top: 1px solid var(--border);
  padding: 64px 24px 0;
}

.footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer-brand p { color: var(--text-dim); font-size: 14px; margin-top: 12px; }
.footer h4 { font-size: 14px; margin-bottom: 14px; letter-spacing: 1px; }
.footer p, .footer-links a { color: var(--text-dim); font-size: 13.5px; margin-bottom: 7px; }
.footer-links a { display: block; transition: color 0.2s; }
.footer-links a:hover { color: var(--text); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 18px 0;
  text-align: center;
  font-size: 12.5px;
  color: #6d6d78;
}

/* ---------- 滚动显现 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* 无 JS 兜底：脚本加载前内容直接可见，避免空白 */
html:not(.js) .reveal { opacity: 1; transform: none; }

/* 预览模式：固定 Hero 高度，便于整页截图验收 */
html.preview .hero { min-height: 720px; padding-top: 110px; padding-bottom: 60px; }
html.preview .hero-inner { gap: 40px; }

/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .hero { padding-top: 100px; }
  .carousel { max-width: 420px; margin: 0 auto; width: 100%; }
  .download-card { grid-template-columns: 1fr; padding: 40px 28px; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 640px) {
  .nav-links { display: none; }
  .btn-download-nav { padding: 8px 16px; font-size: 13px; }
  .section { padding: 80px 18px; }
  .hero-title { font-size: 34px; }
  .char-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 14px; }
}