/* ============================================
   黑料51 · 独特设计系统
   风格：杂志化深色资讯门户 + 暖色高光 + 圆角微动效
   ============================================ */

/* ---------- 字体 ---------- */
@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@500;700;900&family=Noto+Sans+SC:wght@300;400;500;700;900&family=Space+Grotesk:wght@500;700&display=swap');

/* ---------- 设计变量 ---------- */
:root {
  /* 背景层次 */
  --bg-0: #0f1115;
  --bg-1: #161922;
  --bg-2: #1d212c;
  --bg-3: #262b37;
  --card: #1a1e28;
  --card-hover: #20242f;

  /* 文字 */
  --fg: #f4f3f1;
  --fg-2: #b8bcc7;
  --fg-3: #7a8090;
  --fg-inv: #0f1115;

  /* 强调色 */
  --accent: #ff5d5b;        /* 珊瑚红 · 主调 */
  --accent-2: #ffd23f;      /* 电光黄 · 高光 */
  --accent-3: #4ade80;      /* 核验绿 · 可信 */
  --accent-4: #7c83ff;      /* 靛蓝 · 科技 */

  /* 渐变 */
  --grad-warm: linear-gradient(135deg, #ff5d5b 0%, #ff8a5b 50%, #ffd23f 100%);
  --grad-cool: linear-gradient(135deg, #7c83ff 0%, #4ade80 100%);
  --grad-ink: linear-gradient(180deg, #161922 0%, #0f1115 100%);

  /* 圆角 */
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 24px;
  --r-xl: 32px;
  --r-full: 999px;

  /* 阴影 */
  --shadow-1: 0 2px 8px rgba(0,0,0,.3);
  --shadow-2: 0 8px 30px rgba(0,0,0,.4);
  --shadow-glow: 0 0 0 1px rgba(255,93,91,.25), 0 8px 40px rgba(255,93,91,.15);
  --shadow-lift: 0 18px 50px rgba(0,0,0,.55);

  /* 布局 */
  --maxw: 1240px;
  --nav-h: 68px;
  --ease: cubic-bezier(.22,.61,.36,1);
}

/* ---------- 重置 ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: 'Noto Sans SC', system-ui, sans-serif;
  background: var(--bg-0);
  color: var(--fg);
  line-height: 1.7;
  font-weight: 400;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .25s var(--ease); }
a:hover { color: var(--accent); }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul, ol { list-style: none; }
::selection { background: var(--accent); color: #fff; }

/* ---------- 背景氛围 ---------- */
body::before {
  content: "";
  position: fixed; inset: 0;
  background:
    radial-gradient(900px 600px at 12% -5%, rgba(255,93,91,.10), transparent 60%),
    radial-gradient(800px 500px at 95% 8%, rgba(255,210,63,.06), transparent 55%),
    radial-gradient(700px 700px at 50% 110%, rgba(124,131,255,.08), transparent 60%);
  pointer-events: none; z-index: 0;
}
body::after {
  content: "";
  position: fixed; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.4'/%3E%3C/svg%3E");
  opacity: .025; pointer-events: none; z-index: 0; mix-blend-mode: overlay;
}

/* ---------- 容器 ---------- */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }

/* ---------- 导航 ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; height: var(--nav-h);
  background: rgba(15,17,21,.72);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(255,255,255,.06);
  z-index: 100; transition: all .35s var(--ease);
}
.nav.scrolled { background: rgba(15,17,21,.92); border-bottom-color: rgba(255,255,255,.1); }
.nav-inner { max-width: var(--maxw); margin: 0 auto; height: 100%; padding: 0 24px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { display: flex; align-items: center; gap: 10px; font-family: 'Noto Serif SC', serif; font-weight: 900; font-size: 1.25rem; letter-spacing: .5px; }
.brand-logo {
  width: 38px; height: 38px; border-radius: 11px;
  background: var(--grad-warm);
  display: grid; place-items: center;
  font-size: 1.1rem; color: #1a1e28; font-weight: 900;
  box-shadow: 0 4px 14px rgba(255,93,91,.4);
  flex-shrink: 0;
}
.brand-name { background: linear-gradient(90deg, #fff, #ffd23f); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.brand-name .num { color: var(--accent); -webkit-text-fill-color: var(--accent); }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-link {
  padding: 8px 16px; border-radius: var(--r-full); font-size: .92rem; font-weight: 500; color: var(--fg-2);
  transition: all .25s var(--ease); position: relative;
}
.nav-link:hover { color: var(--fg); background: rgba(255,255,255,.05); }
.nav-link.active { color: var(--fg); background: rgba(255,93,91,.12); }
.nav-link.active::after {
  content: ""; position: absolute; bottom: -2px; left: 50%; transform: translateX(-50%);
  width: 18px; height: 3px; border-radius: 2px; background: var(--accent);
}
.nav-cta {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 10px 20px; border-radius: var(--r-full);
  background: var(--grad-warm); color: #1a1e28; font-weight: 700; font-size: .9rem;
  box-shadow: 0 4px 16px rgba(255,93,91,.35);
  transition: transform .25s var(--ease), box-shadow .25s var(--ease);
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(255,93,91,.5); color: #1a1e28; }
.nav-toggle { display: none; width: 42px; height: 42px; border-radius: 10px; align-items: center; justify-content: center; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--fg); border-radius: 2px; position: relative; transition: .3s var(--ease); }
.nav-toggle span::before, .nav-toggle span::after { content: ""; position: absolute; left: 0; width: 22px; height: 2px; background: var(--fg); border-radius: 2px; transition: .3s var(--ease); }
.nav-toggle span::before { top: -7px; } .nav-toggle span::after { top: 7px; }
.nav-toggle.open span { background: transparent; }
.nav-toggle.open span::before { top: 0; transform: rotate(45deg); }
.nav-toggle.open span::after { top: 0; transform: rotate(-45deg); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 28px; border-radius: var(--r-full); font-weight: 700; font-size: .95rem;
  transition: all .3s var(--ease); white-space: nowrap; cursor: pointer; border: none;
}
.btn-primary { background: var(--grad-warm); color: #1a1e28; box-shadow: 0 6px 20px rgba(255,93,91,.35); }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 12px 32px rgba(255,93,91,.5); color: #1a1e28; }
.btn-ghost { background: rgba(255,255,255,.06); color: var(--fg); border: 1px solid rgba(255,255,255,.12); }
.btn-ghost:hover { background: rgba(255,255,255,.12); border-color: rgba(255,255,255,.25); transform: translateY(-2px); }
.btn-green { background: var(--grad-cool); color: #0f1115; box-shadow: 0 6px 20px rgba(74,222,128,.3); }
.btn-green:hover { transform: translateY(-3px); box-shadow: 0 12px 32px rgba(74,222,128,.45); color: #0f1115; }

/* ---------- 徽章/标签 ---------- */
.tag {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 4px 12px; border-radius: var(--r-full); font-size: .75rem; font-weight: 600;
  letter-spacing: .3px;
}
.tag-hot { background: rgba(255,93,91,.14); color: #ff7a78; }
.tag-new { background: rgba(74,222,128,.14); color: #6ee79a; }
.tag-verify { background: rgba(255,210,63,.14); color: #ffd23f; }
.tag-cat { background: rgba(124,131,255,.14); color: #9aa0ff; }
.tag-dot::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; display: inline-block; }

/* ---------- Hero ---------- */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; padding: calc(var(--nav-h) + 60px) 0 80px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 60px; align-items: center; width: 100%; }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px; padding: 8px 16px;
  border-radius: var(--r-full); background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.1);
  font-size: .82rem; color: var(--fg-2); margin-bottom: 28px;
}
.hero-eyebrow .live { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(255,93,91,.6); animation: pulse 2s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(255,93,91,.6);} 70% { box-shadow: 0 0 0 12px rgba(255,93,91,0);} 100% { box-shadow: 0 0 0 0 rgba(255,93,91,0);} }
.hero-title {
  font-family: 'Noto Serif SC', serif; font-weight: 900; line-height: 1.12; letter-spacing: -1px;
  font-size: clamp(2.6rem, 6vw, 4.8rem); margin-bottom: 24px;
}
.hero-title .hl {
  background: var(--grad-warm); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
  position: relative; display: inline-block;
}
.hero-title .hl::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -4px; height: 4px;
  background: var(--grad-warm); border-radius: 4px; opacity: .3;
}
.hero-sub { font-size: 1.12rem; color: var(--fg-2); max-width: 540px; margin-bottom: 36px; line-height: 1.8; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 48px; }
.hero-stats { display: flex; gap: 36px; flex-wrap: wrap; }
.hero-stat .num { font-family: 'Space Grotesk', sans-serif; font-size: 2rem; font-weight: 700; color: var(--accent-2); line-height: 1; }
.hero-stat .label { font-size: .8rem; color: var(--fg-3); margin-top: 6px; }

/* Hero 右侧视觉 */
.hero-visual { position: relative; height: 520px; }
.hv-card {
  position: absolute; border-radius: var(--r-lg); overflow: hidden;
  background: var(--card); border: 1px solid rgba(255,255,255,.08);
  box-shadow: var(--shadow-lift);
}
.hv-card.main {
  width: 320px; height: 420px; right: 30px; top: 30px;
  background: linear-gradient(160deg, #2a1f2e 0%, #1a1e28 100%);
  transform: rotate(-3deg); animation: float1 6s ease-in-out infinite;
}
.hv-card.main .hv-cover { height: 220px; background: var(--grad-warm); position: relative; display: grid; place-items: center; }
.hv-card.main .hv-cover .play-ico { width: 56px; height: 56px; border-radius: 50%; background: rgba(0,0,0,.4); backdrop-filter: blur(6px); display: grid; place-items: center; color: #fff; font-size: 1.4rem; }
.hv-card.main .hv-meta { padding: 18px; }
.hv-card.main .hv-meta h4 { font-size: 1rem; margin-bottom: 6px; }
.hv-card.main .hv-meta p { font-size: .78rem; color: var(--fg-3); }
.hv-card.float {
  width: 180px; left: 0; bottom: 40px; padding: 16px;
  background: rgba(26,30,40,.92); backdrop-filter: blur(12px);
  transform: rotate(4deg); animation: float2 5s ease-in-out infinite;
}
.hv-card.float .ft-row { display: flex; align-items: center; gap: 10px; }
.hv-card.float .ft-ico { width: 36px; height: 36px; border-radius: 10px; background: var(--grad-cool); display: grid; place-items: center; font-size: 1.1rem; }
.hv-card.float .ft-num { font-family: 'Space Grotesk'; font-weight: 700; font-size: 1.3rem; color: var(--accent-3); }
.hv-card.float .ft-lab { font-size: .72rem; color: var(--fg-3); }
.hv-card.badge {
  width: 96px; height: 96px; border-radius: 50%; top: 0; left: 40px;
  background: var(--grad-warm); display: grid; place-items: center; text-align: center;
  box-shadow: 0 10px 30px rgba(255,93,91,.4); animation: float1 7s ease-in-out infinite reverse;
  font-family: 'Noto Serif SC'; font-weight: 900; color: #1a1e28; line-height: 1.2; font-size: .9rem;
}
@keyframes float1 { 0%,100% { transform: rotate(-3deg) translateY(0);} 50% { transform: rotate(-3deg) translateY(-14px);} }
@keyframes float2 { 0%,100% { transform: rotate(4deg) translateY(0);} 50% { transform: rotate(4deg) translateY(10px);} }
.hv-card.badge { animation-name: badgeFloat; }
@keyframes badgeFloat { 0%,100% { transform: translateY(0);} 50% { transform: translateY(-12px);} }

/* ---------- 通用区块 ---------- */
section { position: relative; z-index: 1; }
.section { padding: 90px 0; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 48px; flex-wrap: wrap; }
.section-title { font-family: 'Noto Serif SC', serif; font-size: clamp(1.8rem, 3.5vw, 2.6rem); font-weight: 900; line-height: 1.2; }
.section-title .hl { color: var(--accent); }
.section-sub { color: var(--fg-2); font-size: 1rem; max-width: 520px; margin-top: 10px; }
.section-more { color: var(--fg-2); font-weight: 600; font-size: .9rem; display: inline-flex; align-items: center; gap: 6px; transition: all .25s var(--ease); }
.section-more:hover { color: var(--accent); gap: 10px; }

/* ---------- 分类胶囊 ---------- */
.pill-row { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 36px; }
.pill {
  padding: 10px 22px; border-radius: var(--r-full); font-size: .9rem; font-weight: 500;
  background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.08); color: var(--fg-2);
  transition: all .25s var(--ease); cursor: pointer;
}
.pill:hover { color: var(--fg); border-color: rgba(255,255,255,.2); transform: translateY(-2px); }
.pill.active { background: var(--grad-warm); color: #1a1e28; border-color: transparent; font-weight: 700; box-shadow: 0 4px 14px rgba(255,93,91,.3); }

/* ---------- 资讯卡片 ---------- */
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card {
  background: var(--card); border-radius: var(--r-lg); overflow: hidden;
  border: 1px solid rgba(255,255,255,.06);
  transition: transform .4s var(--ease), box-shadow .4s var(--ease), border-color .4s var(--ease);
  display: flex; flex-direction: column;
}
.news-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lift); border-color: rgba(255,93,91,.3); }
.news-card .nc-cover { height: 180px; position: relative; overflow: hidden; display: grid; place-items: center; font-size: 3rem; }
.news-card .nc-cover .nc-ico { position: relative; z-index: 1; filter: drop-shadow(0 4px 10px rgba(0,0,0,.4)); }
.news-card .nc-cover .nc-shade { position: absolute; inset: 0; background: linear-gradient(180deg, transparent 40%, rgba(0,0,0,.6) 100%); }
.news-card .nc-cover .nc-tag { position: absolute; top: 14px; left: 14px; z-index: 2; }
.news-card .nc-cover .nc-time { position: absolute; bottom: 14px; right: 14px; z-index: 2; font-size: .72rem; color: rgba(255,255,255,.8); font-family: 'Space Grotesk'; }
.news-card .nc-body { padding: 20px; display: flex; flex-direction: column; flex: 1; }
.news-card .nc-cat { font-size: .74rem; color: var(--fg-3); margin-bottom: 10px; font-weight: 600; letter-spacing: .5px; text-transform: uppercase; }
.news-card .nc-title { font-size: 1.1rem; font-weight: 700; line-height: 1.4; margin-bottom: 12px; transition: color .25s var(--ease); }
.news-card:hover .nc-title { color: var(--accent); }
.news-card .nc-desc { font-size: .88rem; color: var(--fg-2); line-height: 1.6; margin-bottom: 16px; flex: 1; }
.news-card .nc-foot { display: flex; align-items: center; justify-content: space-between; padding-top: 14px; border-top: 1px solid rgba(255,255,255,.06); }
.news-card .nc-meta { display: flex; align-items: center; gap: 12px; font-size: .78rem; color: var(--fg-3); }
.news-card .nc-meta span { display: inline-flex; align-items: center; gap: 4px; }

/* 封面渐变背景 */
.bg-grad-1 { background: linear-gradient(135deg, #ff5d5b, #ff8a5b); }
.bg-grad-2 { background: linear-gradient(135deg, #7c83ff, #4ade80); }
.bg-grad-3 { background: linear-gradient(135deg, #ffd23f, #ff8a5b); }
.bg-grad-4 { background: linear-gradient(135deg, #4ade80, #7c83ff); }
.bg-grad-5 { background: linear-gradient(135deg, #ff8a5b, #ff5d5b); }
.bg-grad-6 { background: linear-gradient(135deg, #9aa0ff, #4ade80); }

/* ---------- 短视频卡片 ---------- */
.video-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.video-card {
  background: var(--card); border-radius: var(--r-lg); overflow: hidden;
  border: 1px solid rgba(255,255,255,.06); position: relative;
  transition: transform .4s var(--ease), box-shadow .4s var(--ease);
}
.video-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lift); }
.video-card .vc-cover { height: 200px; position: relative; overflow: hidden; display: grid; place-items: center; }
.video-card .vc-cover .vc-shade { position: absolute; inset: 0; background: linear-gradient(180deg, transparent 50%, rgba(0,0,0,.7)); }
.video-card .vc-cover .vc-play {
  width: 48px; height: 48px; border-radius: 50%; background: rgba(0,0,0,.5); backdrop-filter: blur(6px);
  display: grid; place-items: center; color: #fff; font-size: 1.2rem; position: relative; z-index: 2;
  transition: transform .3s var(--ease);
}
.video-card:hover .vc-play { transform: scale(1.15); background: var(--accent); }
.video-card .vc-dur { position: absolute; bottom: 10px; right: 10px; z-index: 2; font-size: .72rem; background: rgba(0,0,0,.6); padding: 2px 8px; border-radius: 6px; font-family: 'Space Grotesk'; }
.video-card .vc-tag { position: absolute; top: 10px; left: 10px; z-index: 2; }
.video-card .vc-body { padding: 14px 16px; }
.video-card .vc-title { font-size: .95rem; font-weight: 600; line-height: 1.4; margin-bottom: 10px; transition: color .25s var(--ease); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.video-card:hover .vc-title { color: var(--accent); }
.video-card .vc-meta { display: flex; align-items: center; justify-content: space-between; font-size: .76rem; color: var(--fg-3); }
.video-card .vc-views { display: inline-flex; align-items: center; gap: 4px; }

/* ---------- 大特色卡（头条） ---------- */
.feature-card {
  position: relative; border-radius: var(--r-xl); overflow: hidden;
  min-height: 460px; display: flex; align-items: flex-end;
  border: 1px solid rgba(255,255,255,.08); box-shadow: var(--shadow-2);
  transition: transform .4s var(--ease);
}
.feature-card:hover { transform: translateY(-4px); }
.feature-card .fc-bg { position: absolute; inset: 0; background: linear-gradient(135deg, #ff5d5b, #7c83ff); display: grid; place-items: center; font-size: 8rem; opacity: .9; }
.feature-card .fc-shade { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,.1) 0%, rgba(0,0,0,.85) 100%); }
.feature-card .fc-body { position: relative; z-index: 2; padding: 48px; max-width: 620px; }
.feature-card .fc-tag { margin-bottom: 16px; }
.feature-card .fc-title { font-family: 'Noto Serif SC'; font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 900; line-height: 1.25; margin-bottom: 14px; }
.feature-card .fc-desc { color: rgba(255,255,255,.85); margin-bottom: 24px; max-width: 520px; }
.feature-card .fc-actions { display: flex; gap: 12px; }

/* ---------- 数据统计条 ---------- */
.stat-band {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
  padding: 48px; border-radius: var(--r-xl);
  background: linear-gradient(135deg, var(--bg-1), var(--bg-2));
  border: 1px solid rgba(255,255,255,.08);
}
.stat-item { text-align: center; }
.stat-item .s-num { font-family: 'Space Grotesk'; font-size: clamp(2.2rem, 4vw, 3.2rem); font-weight: 700; line-height: 1; background: var(--grad-warm); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.stat-item .s-label { font-size: .9rem; color: var(--fg-2); margin-top: 10px; }

/* ---------- 下载区 ---------- */
.download-band {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
  padding: 64px; border-radius: var(--r-xl);
  background: linear-gradient(135deg, #1d212c, #262b37);
  border: 1px solid rgba(255,255,255,.08); position: relative; overflow: hidden;
}
.download-band::before { content: ""; position: absolute; top: -50%; right: -10%; width: 400px; height: 400px; background: radial-gradient(circle, rgba(255,93,91,.15), transparent 70%); }
.download-band .dl-content { position: relative; z-index: 2; }
.download-band .dl-eyebrow { color: var(--accent); font-weight: 700; font-size: .85rem; letter-spacing: 1px; text-transform: uppercase; margin-bottom: 16px; }
.download-band .dl-title { font-family: 'Noto Serif SC'; font-size: clamp(1.8rem, 3.5vw, 2.8rem); font-weight: 900; line-height: 1.2; margin-bottom: 18px; }
.download-band .dl-desc { color: var(--fg-2); margin-bottom: 32px; line-height: 1.8; }
.download-band .dl-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.download-band .dl-meta { display: flex; gap: 24px; margin-top: 32px; flex-wrap: wrap; }
.download-band .dl-meta-item { display: flex; align-items: center; gap: 8px; font-size: .84rem; color: var(--fg-3); }
.download-band .dl-meta-item .ico { color: var(--accent-3); }
.dl-visual { position: relative; height: 420px; display: grid; place-items: center; z-index: 2; }
.phone-mock {
  width: 240px; height: 480px; border-radius: 40px; background: var(--bg-0);
  border: 3px solid rgba(255,255,255,.15); padding: 12px; position: relative;
  box-shadow: var(--shadow-lift), inset 0 0 0 2px rgba(255,255,255,.05);
  transform: rotate(4deg); transition: transform .5s var(--ease);
}
.phone-mock:hover { transform: rotate(-2deg) scale(1.02); }
.phone-mock::before { content: ""; position: absolute; top: 18px; left: 50%; transform: translateX(-50%); width: 70px; height: 6px; border-radius: 6px; background: rgba(255,255,255,.15); }
.phone-screen { width: 100%; height: 100%; border-radius: 30px; background: var(--grad-ink); overflow: hidden; display: flex; flex-direction: column; padding-top: 30px; }
.phone-screen .ps-top { display: flex; gap: 6px; padding: 0 14px 14px; }
.phone-screen .ps-dot { width: 32px; height: 32px; border-radius: 8px; }
.phone-screen .ps-hero { height: 140px; border-radius: 14px; margin: 0 14px; display: grid; place-items: center; font-size: 2rem; }
.phone-screen .ps-list { padding: 16px 14px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.phone-screen .ps-row { display: flex; gap: 10px; align-items: center; }
.phone-screen .ps-thumb { width: 44px; height: 44px; border-radius: 10px; flex-shrink: 0; }
.phone-screen .ps-lines { flex: 1; }
.phone-screen .ps-line { height: 6px; border-radius: 3px; background: rgba(255,255,255,.12); margin-bottom: 6px; }
.phone-screen .ps-line.w60 { width: 60%; }

/* ---------- 特色/价值卡片 ---------- */
.value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.value-card {
  background: var(--card); border-radius: var(--r-lg); padding: 36px 28px;
  border: 1px solid rgba(255,255,255,.06); position: relative; overflow: hidden;
  transition: all .4s var(--ease);
}
.value-card:hover { transform: translateY(-6px); border-color: rgba(255,93,91,.3); box-shadow: var(--shadow-2); }
.value-card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--grad-warm); transform: scaleX(0); transform-origin: left; transition: transform .4s var(--ease); }
.value-card:hover::before { transform: scaleX(1); }
.value-card .vc-ico { width: 56px; height: 56px; border-radius: 16px; display: grid; place-items: center; font-size: 1.6rem; margin-bottom: 20px; }
.value-card .vc-title { font-size: 1.2rem; font-weight: 700; margin-bottom: 12px; }
.value-card .vc-desc { color: var(--fg-2); font-size: .9rem; line-height: 1.7; }

/* ---------- 时间线（关于页） ---------- */
.timeline { position: relative; padding-left: 32px; }
.timeline::before { content: ""; position: absolute; left: 8px; top: 8px; bottom: 8px; width: 2px; background: linear-gradient(180deg, var(--accent), var(--accent-4)); }
.tl-item { position: relative; padding-bottom: 40px; }
.tl-item::before { content: ""; position: absolute; left: -32px; top: 4px; width: 18px; height: 18px; border-radius: 50%; background: var(--bg-0); border: 3px solid var(--accent); box-shadow: 0 0 0 4px rgba(255,93,91,.15); }
.tl-item .tl-year { font-family: 'Space Grotesk'; font-weight: 700; color: var(--accent); font-size: 1.1rem; margin-bottom: 6px; }
.tl-item .tl-title { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
.tl-item .tl-desc { color: var(--fg-2); font-size: .92rem; line-height: 1.7; }

/* ---------- FAQ ---------- */
.faq-item { border: 1px solid rgba(255,255,255,.08); border-radius: var(--r-md); background: var(--card); margin-bottom: 14px; overflow: hidden; transition: border-color .25s var(--ease); }
.faq-item.open { border-color: rgba(255,93,91,.4); }
.faq-q { padding: 20px 24px; display: flex; align-items: center; justify-content: space-between; cursor: pointer; font-weight: 600; font-size: 1rem; gap: 16px; }
.faq-q .faq-ico { width: 28px; height: 28px; border-radius: 8px; background: rgba(255,93,91,.12); display: grid; place-items: center; color: var(--accent); flex-shrink: 0; font-size: 1.2rem; transition: transform .3s var(--ease); }
.faq-item.open .faq-ico { transform: rotate(45deg); background: var(--accent); color: #1a1e28; }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .35s var(--ease); }
.faq-a-inner { padding: 0 24px 22px; color: var(--fg-2); font-size: .92rem; line-height: 1.7; }

/* ---------- CTA 大区块 ---------- */
.cta-band {
  padding: 72px; border-radius: var(--r-xl); text-align: center;
  background: linear-gradient(135deg, #ff5d5b 0%, #ff8a5b 50%, #ffd23f 100%);
  position: relative; overflow: hidden; box-shadow: 0 20px 60px rgba(255,93,91,.25);
}
.cta-band::before { content: ""; position: absolute; inset: 0; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='40' height='40'%3E%3Cpath d='M0 20h40M20 0v40' stroke='rgba(0,0,0,0.05)' stroke-width='1'/%3E%3C/svg%3E"); }
.cta-band > * { position: relative; z-index: 1; }
.cta-band .cta-title { font-family: 'Noto Serif SC'; font-size: clamp(2rem, 4vw, 3.2rem); font-weight: 900; color: #1a1e28; line-height: 1.2; margin-bottom: 16px; }
.cta-band .cta-desc { font-size: 1.1rem; color: rgba(26,30,40,.8); max-width: 560px; margin: 0 auto 32px; }
.cta-band .btn-primary { background: #1a1e28; color: #fff; box-shadow: 0 8px 30px rgba(0,0,0,.3); }
.cta-band .btn-primary:hover { background: #0f1115; color: #fff; }

/* ---------- 页脚 ---------- */
.footer { background: var(--bg-1); border-top: 1px solid rgba(255,255,255,.06); padding: 64px 0 32px; position: relative; z-index: 1; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-brand .brand { margin-bottom: 18px; }
.footer-brand p { color: var(--fg-3); font-size: .9rem; line-height: 1.7; max-width: 320px; margin-bottom: 20px; }
.footer-social { display: flex; gap: 10px; }
.footer-social a { width: 38px; height: 38px; border-radius: 10px; background: rgba(255,255,255,.05); display: grid; place-items: center; color: var(--fg-2); transition: all .25s var(--ease); font-size: 1.1rem; }
.footer-social a:hover { background: var(--accent); color: #1a1e28; transform: translateY(-3px); }
.footer-col h4 { font-size: .95rem; font-weight: 700; margin-bottom: 18px; }
.footer-col li { margin-bottom: 12px; }
.footer-col a { color: var(--fg-3); font-size: .88rem; transition: color .25s var(--ease); }
.footer-col a:hover { color: var(--accent); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding-top: 28px; border-top: 1px solid rgba(255,255,255,.06); flex-wrap: wrap; gap: 12px; }
.footer-bottom p { color: var(--fg-3); font-size: .82rem; }
.footer-bottom .fb-links { display: flex; gap: 20px; }
.footer-bottom .fb-links a { color: var(--fg-3); font-size: .82rem; }
.footer-bottom .fb-links a:hover { color: var(--accent); }

/* ---------- 入场动画 ---------- */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: translateY(0); }
.reveal.d1 { transition-delay: .1s; } .reveal.d2 { transition-delay: .2s; } .reveal.d3 { transition-delay: .3s; } .reveal.d4 { transition-delay: .4s; }

/* ---------- 移动端导航抽屉 ---------- */
.nav-drawer {
  position: fixed; top: var(--nav-h); left: 0; right: 0;
  background: rgba(15,17,21,.98); backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,.08);
  padding: 16px 24px; display: none; flex-direction: column; gap: 6px; z-index: 99;
}
.nav-drawer.open { display: flex; animation: slideDown .3s var(--ease); }
@keyframes slideDown { from { opacity: 0; transform: translateY(-10px);} to { opacity: 1; transform: translateY(0);} }
.nav-drawer a { padding: 14px 16px; border-radius: 12px; font-size: 1rem; color: var(--fg-2); transition: all .2s var(--ease); }
.nav-drawer a:hover, .nav-drawer a.active { background: rgba(255,93,91,.12); color: var(--fg); }
.nav-drawer .btn { margin-top: 8px; }

/* ---------- 面包屑 ---------- */
.breadcrumb { padding: calc(var(--nav-h) + 40px) 0 24px; }
.breadcrumb ol { display: flex; gap: 8px; align-items: center; font-size: .85rem; color: var(--fg-3); }
.breadcrumb li { display: flex; align-items: center; gap: 8px; }
.breadcrumb a { color: var(--fg-3); transition: color .25s var(--ease); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { color: var(--fg-3); opacity: .5; }
.breadcrumb li:last-child { color: var(--fg); }

/* ---------- 页面标题区 ---------- */
.page-hero { padding: 40px 0 56px; }
.page-hero .ph-eyebrow { color: var(--accent); font-weight: 700; font-size: .85rem; letter-spacing: 1px; text-transform: uppercase; margin-bottom: 14px; }
.page-hero h1 { font-family: 'Noto Serif SC'; font-size: clamp(2.2rem, 5vw, 3.6rem); font-weight: 900; line-height: 1.15; margin-bottom: 18px; }
.page-hero h1 .hl { background: var(--grad-warm); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.page-hero p { color: var(--fg-2); font-size: 1.05rem; max-width: 620px; line-height: 1.8; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { height: 440px; max-width: 480px; }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .video-grid { grid-template-columns: repeat(3, 1fr); }
  .value-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-band { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .download-band { grid-template-columns: 1fr; gap: 40px; padding: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .nav-cta { display: none; }
  .container { padding: 0 18px; }
  .section { padding: 64px 0; }
  .card-grid { grid-template-columns: 1fr; }
  .video-grid { grid-template-columns: repeat(2, 1fr); }
  .value-grid { grid-template-columns: 1fr; }
  .stat-band { grid-template-columns: 1fr 1fr; padding: 32px 24px; gap: 24px; }
  .download-band { padding: 28px; }
  .cta-band { padding: 48px 24px; }
  .feature-card { min-height: 380px; }
  .feature-card .fc-body { padding: 32px 28px; }
  .hero-stats { gap: 24px; }
  .hero-stat .num { font-size: 1.6rem; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .section-head { flex-direction: column; align-items: flex-start; }
  .hero-visual { height: 380px; }
  .hv-card.main { width: 260px; height: 350px; right: 10px; }
  .hv-card.float { width: 150px; }
  .hv-card.badge { width: 80px; height: 80px; font-size: .8rem; }
  .phone-mock { width: 200px; height: 400px; }
}
@media (max-width: 480px) {
  .video-grid { grid-template-columns: 1fr; }
  .stat-band { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
}

/* 减少动效偏好 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}