:root {
  --pink: #f5127a;
  --pink-light: #ff5aa8;
  --pink-deep: #c2005e;
  --ink: #0c0510;
  --ink-soft: #170a18;
  --text: #f6eef4;
  --text-dim: #b9a7b6;
  --line: rgba(255, 255, 255, .1);
  --radius: 22px;
  --max: 1140px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--ink);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--pink-light); text-decoration: none; }

a:hover { text-decoration: underline; }

.wrap {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

/* 顶部导航 */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(12, 5, 16, .72);
  backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--line);
}

.nav__inner {
  display: flex;
  align-items: center;
  gap: 28px;
  height: 68px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 19px;
  color: var(--text);
  letter-spacing: .2px;
}

.brand:hover { text-decoration: none; }

.brand img {
  width: 34px;
  height: 34px;
  border-radius: 10px;
}

.nav__links {
  display: flex;
  gap: 24px;
  margin-left: auto;
  font-size: 15px;
}

.nav__links a { color: var(--text-dim); }

.nav__links a:hover { color: var(--text); text-decoration: none; }

.nav__cta {
  padding: 9px 18px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--pink), var(--pink-light));
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
}

.nav__cta:hover { text-decoration: none; opacity: .9; }

/* 英雄区 */
.hero {
  position: relative;
  overflow: hidden;
  padding: 92px 0 88px;
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
}

.hero::before {
  width: 620px;
  height: 620px;
  top: -220px;
  left: -140px;
  background: rgba(245, 18, 122, .45);
}

.hero::after {
  width: 520px;
  height: 520px;
  right: -180px;
  bottom: -240px;
  background: rgba(150, 60, 220, .32);
}

.hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 56px;
  align-items: center;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 15px;
  border: 1px solid rgba(255, 90, 168, .38);
  background: rgba(245, 18, 122, .12);
  border-radius: 999px;
  font-size: 13px;
  color: var(--pink-light);
  margin-bottom: 22px;
}

h1 {
  margin: 0 0 18px;
  font-size: clamp(38px, 5vw, 62px);
  line-height: 1.08;
  letter-spacing: -1.4px;
  font-weight: 800;
}

.grad {
  background: linear-gradient(100deg, var(--pink-light), #ffb0d4 55%, #c9a7ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__sub {
  font-size: 19px;
  color: var(--text-dim);
  max-width: 520px;
  margin: 0 0 34px;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 28px;
  border-radius: 999px;
  font-weight: 650;
  font-size: 16px;
}

.btn:hover { text-decoration: none; }

.btn--primary {
  background: linear-gradient(135deg, var(--pink), var(--pink-light));
  color: #fff;
  box-shadow: 0 14px 34px rgba(245, 18, 122, .34);
}

.btn--primary:hover { transform: translateY(-2px); transition: transform .2s; }

.btn--ghost {
  border: 1px solid var(--line);
  color: var(--text);
  background: rgba(255, 255, 255, .04);
}

.hero__note {
  margin-top: 22px;
  font-size: 13px;
  color: #8d7d8c;
}

.hero__shot {
  position: relative;
  width: 100%;
  max-width: 320px;
  margin-left: auto;
  border-radius: 34px;
  overflow: hidden;
  box-shadow: 0 40px 90px rgba(0, 0, 0, .55);
  border: 1px solid var(--line);
}

/* 通用区块 */
section { padding: 84px 0; }

.section-head {
  max-width: 680px;
  margin: 0 auto 54px;
  text-align: center;
}

.eyebrow {
  font-size: 13px;
  letter-spacing: 2.4px;
  text-transform: uppercase;
  color: var(--pink-light);
  font-weight: 700;
  margin: 0 0 12px;
}

h2 {
  margin: 0 0 14px;
  font-size: clamp(28px, 3.4vw, 42px);
  line-height: 1.18;
  letter-spacing: -.8px;
  font-weight: 780;
}

.section-head p {
  margin: 0;
  color: var(--text-dim);
  font-size: 17px;
}

/* 图文交替区块 */
.feature {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.feature + .feature { margin-top: 96px; }

.feature--flip .feature__media { order: -1; }

.feature h3 {
  margin: 0 0 16px;
  font-size: clamp(24px, 2.6vw, 33px);
  letter-spacing: -.5px;
  line-height: 1.22;
  font-weight: 760;
}

.feature p {
  color: var(--text-dim);
  margin: 0 0 16px;
  font-size: 16.5px;
}

.feature__media {
  width: 100%;
  max-width: 320px;
  margin: 0 auto;
  border-radius: 34px;
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: 0 30px 70px rgba(0, 0, 0, .5);
}

.ticks {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.ticks li {
  position: relative;
  padding-left: 30px;
  color: var(--text-dim);
  font-size: 16px;
}

.ticks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--pink), var(--pink-light));
}

/* 卡片网格 */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 22px;
}

.cards--4 { grid-template-columns: repeat(auto-fit, minmax(228px, 1fr)); }

.card {
  padding: 30px 28px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(170deg, rgba(255, 255, 255, .06), rgba(255, 255, 255, .02));
}

.card__icon {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: rgba(245, 18, 122, .16);
  margin-bottom: 18px;
}

.card h3 {
  margin: 0 0 10px;
  font-size: 19px;
  font-weight: 700;
}

.card p {
  margin: 0;
  color: var(--text-dim);
  font-size: 15.5px;
}

.alt { background: var(--ink-soft); }

/* 号召区 */
.cta {
  text-align: center;
  padding: 96px 0;
  background:
    radial-gradient(700px 340px at 50% 0%, rgba(245, 18, 122, .3), transparent 70%),
    var(--ink);
}

.cta h2 { max-width: 720px; margin: 0 auto 16px; }

.cta p { color: var(--text-dim); max-width: 560px; margin: 0 auto 32px; font-size: 17px; }

.cta .btn-row { justify-content: center; }

/* 页脚 */
.footer {
  border-top: 1px solid var(--line);
  padding: 54px 0 40px;
  background: var(--ink-soft);
  font-size: 15px;
}

.footer__grid {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  justify-content: space-between;
  margin-bottom: 34px;
}

.footer__about { max-width: 340px; color: var(--text-dim); }

.footer__about .brand { margin-bottom: 14px; }

.footer__col h4 {
  margin: 0 0 14px;
  font-size: 13px;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  color: #8d7d8c;
}

.footer__col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }

.footer__col a { color: var(--text-dim); }

.footer__col a:hover { color: var(--text); text-decoration: none; }

.footer__legal {
  border-top: 1px solid var(--line);
  padding-top: 24px;
  color: #8d7d8c;
  font-size: 13.5px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
}

@media (max-width: 900px) {
  .hero { padding: 62px 0 66px; }
  .hero__grid,
  .feature { grid-template-columns: 1fr; gap: 40px; }
  .feature--flip .feature__media { order: 0; }
  .hero__shot { margin: 0 auto; }
  .nav__links { display: none; }
  section { padding: 62px 0; }
}