/**
 * 神伞 · 多产品入口页（暗森林）
 * 与 WEB 官网视觉体系统一：深苔绿底、林隙金光。
 */

:root {
  --bg-deep: #07110d;
  --bg-forest: #0c1a14;
  --bg-panel: #12241c;
  --moss: #2f6b52;
  --moss-soft: #3d8a68;
  --leaf: #7eb89a;
  --mist: #a8c9b8;
  --gold: #c4a574;
  --gold-bright: #dfc396;
  --ink: #e8f0eb;
  --ink-dim: #9bb3a6;
  --line: rgba(126, 184, 154, 0.18);
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
  --radius: 20px;
  --font-display: "Cormorant Garamond", "Noto Serif SC", "Songti SC", serif;
  --font-body: "Sora", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --max: 1120px;
  --header-h: 72px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  background:
    radial-gradient(ellipse 90% 55% at 12% -8%, rgba(47, 107, 82, 0.38), transparent 55%),
    radial-gradient(ellipse 70% 45% at 92% 8%, rgba(196, 165, 116, 0.12), transparent 50%),
    linear-gradient(180deg, var(--bg-deep) 0%, var(--bg-forest) 48%, #0a1611 100%);
  background-attachment: fixed;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--gold-bright);
  text-decoration: none;
  transition: color 0.25s ease;
}

a:hover {
  color: #f0e2c4;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--gold);
  color: #111;
  padding: 0.5rem 1rem;
  z-index: 1000;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.25rem;
  width: 100%;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  backdrop-filter: blur(16px);
  background: rgba(7, 17, 13, 0.85);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  max-width: var(--max);
  margin: 0 auto;
  height: 100%;
  padding: 0 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: 0.04em;
}

.brand__mark {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}

.brand__sub {
  display: block;
  font-family: var(--font-body);
  font-size: 0.65rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin-top: -0.1rem;
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(18, 36, 28, 0.7);
}

.lang-switch__label {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-dim);
  padding: 0 0.45rem 0 0.65rem;
}

.lang-btn {
  border: none;
  background: transparent;
  color: var(--mist);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.lang-btn:hover {
  color: var(--ink);
}

.lang-btn.is-active {
  background: linear-gradient(135deg, var(--moss-soft), var(--moss));
  color: #f4fff8;
}

/* Main */
.portal-main {
  flex: 1;
  padding: 3.5rem 0 4rem;
}

.portal-hero {
  text-align: center;
  max-width: 40rem;
  margin: 0 auto 2.75rem;
}

.eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.85rem;
}

.portal-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  font-weight: 600;
  line-height: 1.25;
  margin: 0 0 0.85rem;
  background: linear-gradient(120deg, #f4fff8 10%, var(--gold-bright) 55%, var(--leaf) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.portal-hero .lead {
  margin: 0;
  color: var(--mist);
  font-size: 1.05rem;
}

/* 首屏关键词行：家长管理 / 手机管理 / 电脑管理 */
.hero-keywords {
  margin: 0 0 0.85rem;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--gold-bright);
}

/* 小羊防迷 → 神伞 更名说明 */
.rename-note {
  margin: 1.35rem auto 0;
  max-width: 36rem;
  padding: 0.85rem 1.1rem;
  border-radius: 14px;
  border: 1px solid rgba(196, 165, 116, 0.28);
  background: linear-gradient(135deg, rgba(196, 165, 116, 0.1), rgba(47, 107, 82, 0.16));
  text-align: left;
}

.rename-note p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--mist);
}

.rename-note strong {
  color: var(--gold-bright);
  font-weight: 600;
}

/* Product grid */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.product-card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  padding: 1.65rem 1.45rem 1.55rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at top right, rgba(196, 165, 116, 0.1), transparent 42%),
    linear-gradient(165deg, #163226, #0e1c16);
  box-shadow: var(--shadow);
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.product-card:hover {
  border-color: rgba(196, 165, 116, 0.45);
  transform: translateY(-4px);
}

.product-card--gold {
  background:
    radial-gradient(circle at top right, rgba(223, 195, 150, 0.16), transparent 45%),
    linear-gradient(165deg, #1a3226, #0e1c16);
}

.product-card--moss {
  background:
    radial-gradient(circle at top right, rgba(61, 138, 104, 0.22), transparent 45%),
    linear-gradient(165deg, #143226, #0c1a14);
}

.product-card--mist {
  background:
    radial-gradient(circle at top right, rgba(168, 201, 184, 0.14), transparent 45%),
    linear-gradient(165deg, #152820, #0d1a14);
}

.product-card__tag {
  align-self: flex-start;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.75rem;
}

.product-card__name {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 600;
  color: var(--gold-bright);
  margin: 0 0 0.65rem;
  line-height: 1.3;
}

.product-card__desc {
  flex: 1;
  margin: 0 0 1.35rem;
  color: var(--ink-dim);
  font-size: 0.95rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 46px;
  padding: 0.65rem 1.2rem;
  border-radius: 12px;
  border: 1px solid transparent;
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 600;
  width: 100%;
  transition: transform 0.2s ease, filter 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn--primary {
  background: linear-gradient(135deg, var(--gold-bright), var(--gold));
  color: #1a140c !important;
  box-shadow: 0 10px 28px rgba(196, 165, 116, 0.28);
}

.btn--moss {
  background: linear-gradient(135deg, var(--moss-soft), #245844);
  color: #f3fff8 !important;
}

.btn--ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--ink) !important;
}

.btn--ghost:hover {
  border-color: var(--leaf);
  color: var(--leaf) !important;
}

/* 会员折扣条：置于三产品卡片下方 */
.promo {
  margin-top: 1.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(90deg, rgba(196, 165, 116, 0.08), rgba(47, 107, 82, 0.18), rgba(196, 165, 116, 0.08));
  box-shadow: var(--shadow);
}

.promo__inner {
  padding: 1.15rem 1.25rem;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.promo__badge {
  flex-shrink: 0;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  background: rgba(196, 165, 116, 0.18);
  color: var(--gold-bright);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  margin-top: 0.2rem;
}

.promo__text {
  margin: 0;
  color: var(--mist);
  font-size: 0.95rem;
  line-height: 1.7;
}

.promo__text strong {
  color: var(--gold-bright);
  font-weight: 600;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.75rem 0 1.5rem;
  background: rgba(0, 0, 0, 0.22);
}

.footer-bottom {
  color: var(--ink-dim);
  font-size: 0.85rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  justify-content: space-between;
  align-items: center;
}

.reveal {
  opacity: 0;
  transform: translateY(14px);
  animation: portal-in 0.7s ease forwards;
}

.product-card:nth-child(1) { animation-delay: 0.05s; }
.product-card:nth-child(2) { animation-delay: 0.15s; }
.product-card:nth-child(3) { animation-delay: 0.25s; }

@keyframes portal-in {
  to {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 900px) {
  .product-grid {
    grid-template-columns: 1fr;
    max-width: 420px;
    margin: 0 auto;
  }

  .promo__inner {
    flex-direction: column;
    gap: 0.65rem;
  }

  .lang-switch__label {
    display: none;
  }

  .portal-main {
    padding-top: 2.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .reveal,
  .product-card {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}