:root {
  --brand: #E8A33D;
  --brand-dark: #c9862a;
  --ink: #1c1c1e;
  --ink-2: #5b5b60;
  --line: #ececef;
  --bg: #ffffff;
  --bg-alt: #faf7f1;
  --radius: 18px;
  --maxw: 1140px;
  --shadow: 0 10px 40px rgba(28, 28, 30, 0.08);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 999px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform .15s ease, background .15s ease, box-shadow .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn--primary { background: var(--brand); color: #20140a; }
.btn--primary:hover { background: var(--brand-dark); }
.btn--ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn--ghost:hover { border-color: var(--brand); color: var(--brand-dark); }
.btn--lg { padding: 14px 28px; font-size: 16px; }
.btn--sm { padding: 9px 18px; font-size: 14px; }

/* 导航 */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.82);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 14px 22px;
  display: flex;
  align-items: center;
  gap: 20px;
}
.brand { display: flex; align-items: center; gap: 9px; font-weight: 800; font-size: 18px; }
.brand__mark {
  width: 22px; height: 22px; border-radius: 7px;
  background: linear-gradient(135deg, var(--brand), #f4c879);
  box-shadow: inset 0 0 0 2px rgba(255,255,255,.4);
}
.brand__name { letter-spacing: .3px; }
.nav__links { display: flex; gap: 22px; margin-left: 10px; flex: 1; }
.nav__links a { color: var(--ink-2); font-size: 15px; font-weight: 500; }
.nav__links a:hover { color: var(--brand-dark); }
.nav__right { display: flex; align-items: center; gap: 12px; }
.lang {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 999px;
  padding: 7px 14px;
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
  color: var(--ink);
}
.lang:hover { border-color: var(--brand); color: var(--brand-dark); }

/* Hero */
.hero { position: relative; overflow: hidden; }
.hero__bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(900px 500px at 85% -10%, rgba(232,163,61,.18), transparent 60%),
    radial-gradient(700px 500px at 0% 100%, rgba(232,163,61,.10), transparent 55%);
}
.hero__inner {
  position: relative;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 72px 22px 84px;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 48px;
  align-items: center;
}
.pill {
  display: inline-block;
  background: rgba(232,163,61,.14);
  color: var(--brand-dark);
  border: 1px solid rgba(232,163,61,.3);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 18px;
}
.hero__title { font-size: 46px; line-height: 1.15; font-weight: 800; letter-spacing: -.5px; }
.hero__sub { margin: 20px 0 28px; font-size: 17px; color: var(--ink-2); max-width: 30em; }
.hero__cta { display: flex; gap: 14px; flex-wrap: wrap; }
.hero__meta { margin-top: 18px; font-size: 14px; color: var(--ink-2); }
.hero__media { position: relative; }
.hero__media img { border-radius: 22px; box-shadow: var(--shadow); object-fit: cover; aspect-ratio: 4/5; width: 100%; }
.hero__card {
  position: absolute; left: 18px; bottom: 18px;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(8px);
  border-radius: 14px;
  padding: 12px 16px;
  box-shadow: var(--shadow);
  display: grid; gap: 4px;
}
.hero__card-row { display: flex; gap: 10px; font-size: 13px; align-items: center; justify-content: space-between; min-width: 150px; }
.hero__card-row span { color: var(--ink-2); }
.hero__card-row b { color: var(--brand-dark); }

/* 通用 section */
.section { max-width: var(--maxw); margin: 0 auto; padding: 84px 22px; }
.section--alt { max-width: none; background: var(--bg-alt); }
.section--alt > * { max-width: var(--maxw); margin-left: auto; margin-right: auto; }
.section__head { text-align: center; margin-bottom: 44px; }
.section__head h2 { font-size: 34px; font-weight: 800; letter-spacing: -.3px; }
.section__head p { color: var(--ink-2); margin-top: 10px; font-size: 17px; }

/* 功能卡片 */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 22px;
  transition: transform .15s ease, box-shadow .15s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.card__icon {
  width: 48px; height: 48px; border-radius: 12px;
  background: rgba(232,163,61,.14);
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; margin-bottom: 14px;
}
.card h3 { font-size: 18px; margin-bottom: 8px; }
.card p { color: var(--ink-2); font-size: 14.5px; }

/* 场景展示 */
.showcase { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.showcase__item { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); background:#fff; }
.showcase__item img { aspect-ratio: 4/5; object-fit: cover; transition: transform .4s ease; }
.showcase__item:hover img { transform: scale(1.04); }
.showcase__item figcaption { padding: 12px 14px; font-size: 14px; font-weight: 600; }

/* 步骤 */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.step { text-align: center; }
.step__num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--brand); color: #20140a; font-weight: 800; font-size: 18px;
  margin-bottom: 14px;
}
.step h3 { font-size: 19px; margin-bottom: 6px; }
.step p { color: var(--ink-2); font-size: 15px; }

/* 截图 */
.screens { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.screens img { border-radius: 16px; box-shadow: var(--shadow); border: 1px solid var(--line); }

/* 会员 */
.plans { display: grid; grid-template-columns: repeat(2, minmax(0, 360px)); gap: 24px; justify-content: center; }
.plan {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 32px 28px;
  background: #fff;
  text-align: center;
}
.plan--pro { border-color: var(--brand); box-shadow: 0 14px 50px rgba(232,163,61,.22); }
.plan__tag {
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: var(--brand); color: #20140a; font-size: 12px; font-weight: 700;
  padding: 5px 14px; border-radius: 999px;
}
.plan h3 { font-size: 20px; }
.plan__price { font-size: 40px; font-weight: 800; margin: 10px 0 18px; color: var(--brand-dark); }
.plan ul { list-style: none; display: grid; gap: 10px; margin-bottom: 22px; }
.plan li { color: var(--ink-2); font-size: 15px; }
.plan .btn { width: 100%; }

/* 下载 */
.download { background: linear-gradient(135deg, #2a2118, #3a2c1c); color: #fff; }
.download__inner { max-width: var(--maxw); margin: 0 auto; padding: 80px 22px; text-align: center; }
.download h2 { font-size: 36px; font-weight: 800; }
.download p { color: rgba(255,255,255,.75); margin: 12px 0 26px; font-size: 17px; }
.download__note { font-size: 13px; color: rgba(255,255,255,.5); margin-top: 18px; }

/* 页脚 */
.footer { background: #161616; color: #cfcfd2; }
.footer__inner {
  max-width: var(--maxw); margin: 0 auto; padding: 48px 22px 24px;
  display: flex; justify-content: space-between; gap: 30px; flex-wrap: wrap;
}
.footer__brand .brand__name { color: #fff; }
.footer__brand p { color: #8a8a8e; margin-top: 10px; font-size: 14px; max-width: 22em; }
.footer__brand .brand__mark { display: inline-block; vertical-align: middle; }
.footer__links { display: flex; gap: 22px; flex-wrap: wrap; align-items: center; }
.footer__links a { color: #cfcfd2; font-size: 14px; }
.footer__links a:hover { color: var(--brand); }
.footer__bottom { border-top: 1px solid #2a2a2a; text-align: center; padding: 16px; font-size: 13px; color: #777; }

/* 响应式 */
@media (max-width: 980px) {
  .hero__inner { grid-template-columns: 1fr; padding-top: 40px; }
  .hero__title { font-size: 38px; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .showcase { grid-template-columns: repeat(2, 1fr); }
  .screens { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .nav__links { display: none; }
  .hero__title { font-size: 32px; }
  .cards, .showcase { grid-template-columns: 1fr; }
  .screens { grid-template-columns: 1fr; }
  .plans { grid-template-columns: 1fr; }
  .section { padding: 56px 18px; }
}