/* ═══════════════════════════════════
   嘎嘎亮 GooseGlow 官网 — 设计系统
   深色底 + 品牌黄，照片为主角
   ═══════════════════════════════════ */

:root {
  --c-yellow: #FFC400;
  --c-yellow-press: #F0A800;
  --c-yellow-dim: rgba(255, 196, 0, 0.14);

  --bg-page: #0A0A0C;
  --bg-surface: #141418;
  --bg-surface-2: #1C1C22;

  --t-primary: #F5F5F0;
  --t-secondary: #B9B9C0;
  --t-muted: #6B6B74;

  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);

  --radius-sm: 12px;
  --radius: 20px;
  --radius-lg: 28px;
  --radius-full: 999px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, "SF Pro Display", "PingFang SC", "Helvetica Neue", system-ui, sans-serif;
  font-size: 16px;
  color: var(--t-primary);
  background: var(--bg-page);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── 顶部导航 ── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 12, 0.82);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 17px;
}

.nav__logo-img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.nav__links {
  display: flex;
  gap: 28px;
  font-size: 14px;
  color: var(--t-secondary);
}

.nav__links a {
  transition: color 0.2s ease;
}

.nav__links a:hover {
  color: var(--c-yellow);
}

/* ── 首屏 ── */
.hero {
  padding: 88px 0 72px;
  text-align: center;
}

.hero__goose {
  width: 120px;
  margin: 0 auto 28px;
}

.hero__title {
  font-size: 44px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 16px;
}

.hero__title em {
  font-style: normal;
  color: var(--c-yellow);
}

.hero__sub {
  font-size: 18px;
  color: var(--t-secondary);
  max-width: 560px;
  margin: 0 auto 12px;
}

.hero__meta {
  font-size: 14px;
  color: var(--t-muted);
}

/* ── 功能卡 ── */
.features {
  padding: 24px 0 72px;
}

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

.feature {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.feature:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
}

.feature__icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--c-yellow-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.feature__icon svg {
  width: 24px;
  height: 24px;
  stroke: var(--c-yellow);
}

.feature__title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature__desc {
  font-size: 14px;
  color: var(--t-secondary);
  line-height: 1.7;
}

/* ── 能力条 ── */
.more {
  padding: 0 0 72px;
}

.more__title {
  font-size: 22px;
  font-weight: 600;
  text-align: center;
  margin-bottom: 28px;
}

.more__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px 20px;
}

.more__item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--t-secondary);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  transition: border-color 0.25s ease, color 0.25s ease;
}

.more__item:hover {
  border-color: var(--border-strong);
  color: var(--t-primary);
}

.more__dot {
  flex: none;
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--c-yellow);
  margin-top: 8px;
}

/* ── 免费与 Pro ── */
.plans {
  padding: 0 0 72px;
}

.plans__card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.plans__col h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 14px;
}

.plans__col h3 span {
  color: var(--t-muted);
  font-weight: 400;
  font-size: 14px;
  margin-left: 8px;
}

.plans__list {
  list-style: none;
}

.plans__list li {
  font-size: 14px;
  color: var(--t-secondary);
  padding: 7px 0;
  display: flex;
  gap: 10px;
  align-items: baseline;
}

.plans__list li::before {
  content: "";
  flex: none;
  width: 5px;
  height: 5px;
  border-radius: var(--radius-full);
  background: var(--t-muted);
  transform: translateY(-2px);
}

.plans__col--pro .plans__list li::before {
  background: var(--c-yellow);
}

.plans__note {
  grid-column: 1 / -1;
  font-size: 13px;
  color: var(--t-muted);
  border-top: 1px solid var(--border);
  padding-top: 20px;
}

/* ── 隐私一句话 ── */
.privacy-strip {
  padding: 0 0 72px;
}

.privacy-strip__inner {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: linear-gradient(180deg, var(--bg-surface) 0%, var(--bg-page) 100%);
}

.privacy-strip__text {
  font-size: 15px;
  color: var(--t-secondary);
  max-width: 640px;
}

.privacy-strip__text strong {
  color: var(--t-primary);
  font-weight: 600;
}

.privacy-strip__link {
  flex: none;
  font-size: 14px;
  font-weight: 600;
  color: var(--c-yellow);
  transition: color 0.2s ease;
}

.privacy-strip__link:hover {
  color: var(--c-yellow-press);
}

/* ── 页脚 ── */
.footer {
  border-top: 1px solid var(--border);
  padding: 32px 0 40px;
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13px;
  color: var(--t-muted);
}

.footer__links {
  display: flex;
  gap: 24px;
}

.footer__links a {
  transition: color 0.2s ease;
}

.footer__links a:hover {
  color: var(--c-yellow);
}

/* ── 法律页（隐私政策 / 支持 / 条款） ── */
.legal {
  max-width: 760px;
  margin: 0 auto;
  padding: 64px 24px 72px;
}

.legal__back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--t-muted);
  margin-bottom: 40px;
  transition: color 0.2s ease;
}

.legal__back:hover {
  color: var(--c-yellow);
}

.legal h1 {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}

.legal__updated {
  color: var(--t-muted);
  font-size: 14px;
  margin-bottom: 36px;
}

.legal h2 {
  font-size: 19px;
  font-weight: 600;
  margin: 40px 0 12px;
}

.legal h3 {
  font-size: 15px;
  font-weight: 600;
  margin: 24px 0 8px;
  color: var(--t-secondary);
}

.legal p, .legal li {
  font-size: 15px;
  line-height: 1.85;
  color: var(--t-secondary);
}

.legal p { margin-bottom: 12px; }

.legal ul, .legal ol {
  padding-left: 22px;
  margin-bottom: 12px;
}

.legal li { margin-bottom: 6px; }

.legal strong {
  color: var(--t-primary);
  font-weight: 600;
}

.legal a {
  color: var(--c-yellow);
  transition: color 0.2s ease;
}

.legal a:hover {
  color: var(--c-yellow-press);
}

.legal__divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 64px 0;
}

.legal__en {
  color: var(--t-secondary);
}

.legal__contact {
  display: inline-block;
  margin-top: 10px;
  font-weight: 600;
  color: var(--c-yellow);
}

/* ── 响应式 ── */
@media (max-width: 860px) {
  .features__grid { grid-template-columns: 1fr; }
  .more__grid { grid-template-columns: 1fr; }
  .plans__card { grid-template-columns: 1fr; padding: 28px; }
  .privacy-strip__inner { flex-direction: column; align-items: flex-start; }
  .hero__title { font-size: 34px; }
  .nav__links { gap: 18px; }
}