/* =========================================================
   糖心vlog · 全站样式（主色 #f97316 · 浅色背景）
   ========================================================= */
:root {
  --primary: #f97316;
  --primary-dark: #ea580c;
  --primary-soft: #ffedd5;
  --primary-grad: linear-gradient(135deg, #f97316 0%, #fb923c 55%, #fdba74 100%);
  --bg: #fdf8f3;
  --card: #ffffff;
  --text: #292524;
  --muted: #78716c;
  --border: #f0e2d4;
  --radius: 20px;
  --shadow: 0 8px 24px rgba(249, 115, 22, .08);
  --shadow-lg: 0 16px 40px rgba(249, 115, 22, .16);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}
img { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 8px 18px; border-radius: 999px; font-size: 14px;
  border: 1px solid transparent; cursor: pointer; transition: all .2s;
}
.btn-ghost { border-color: var(--primary); color: var(--primary); background: transparent; }
.btn-ghost:hover { background: var(--primary-soft); }
.btn-primary {
  background: var(--primary-grad); color: #fff;
  box-shadow: 0 6px 16px rgba(249, 115, 22, .35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 22px rgba(249, 115, 22, .45); }

/* ---------- 顶部导航 ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.logo { display: flex; align-items: center; gap: 8px; font-size: 20px; font-weight: 800; color: var(--primary-dark); }
.logo .logo-ico { font-size: 26px; }
.nav-links { display: flex; gap: 22px; }
.nav-links a { font-size: 14px; color: var(--muted); transition: color .2s; }
.nav-links a:hover, .nav-links a.active { color: var(--primary); }
.nav-btns { display: flex; gap: 10px; }
@media (max-width: 1024px) { .nav-links { display: none; } }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background: var(--primary-grad); color: #fff;
  padding: 96px 0 80px; text-align: center;
}
.particles { position: absolute; inset: 0; pointer-events: none; }
.particle {
  position: absolute; bottom: -20px; border-radius: 50%;
  background: rgba(255, 255, 255, .55);
  animation: floatUp linear infinite;
}
@keyframes floatUp {
  0%   { transform: translateY(0) translateX(0); opacity: 0; }
  10%  { opacity: .9; }
  90%  { opacity: .5; }
  100% { transform: translateY(-110vh) translateX(40px); opacity: 0; }
}
.hero h1 { font-size: clamp(30px, 5vw, 52px); font-weight: 900; letter-spacing: 2px; }
.hero p.sub { margin: 18px auto 0; max-width: 640px; font-size: 17px; color: rgba(255, 255, 255, .92); }
.search-box {
  display: flex; max-width: 560px; margin: 34px auto 0;
  background: #fff; border-radius: 999px; padding: 6px;
  box-shadow: var(--shadow-lg);
}
.search-box input {
  flex: 1; border: none; outline: none; padding: 12px 22px;
  font-size: 15px; background: transparent; color: var(--text);
}
.search-box button {
  border: none; background: var(--primary-grad); color: #fff;
  border-radius: 999px; padding: 0 26px; font-size: 16px;
  cursor: pointer; transition: transform .2s;
}
.search-box button:hover { transform: scale(1.06); }
.hero-stats { display: flex; justify-content: center; gap: 64px; margin-top: 48px; flex-wrap: wrap; }
.hero-stats .hs b { display: block; font-size: 30px; font-weight: 900; font-variant-numeric: tabular-nums; }
.hero-stats .hs span { font-size: 14px; color: rgba(255, 255, 255, .9); }

/* ---------- 区块通用 ---------- */
.section { padding: 72px 0; }
.sec-head { text-align: center; margin-bottom: 44px; }
.sec-tag {
  display: inline-block; padding: 4px 14px; border-radius: 999px;
  background: var(--primary-soft); color: var(--primary-dark);
  font-size: 13px; font-weight: 700; margin-bottom: 12px;
}
.sec-head h2 { font-size: 30px; font-weight: 900; letter-spacing: 1px; }
.sec-head p { color: var(--muted); margin-top: 10px; font-size: 15px; }

/* ---------- 视频卡片 ---------- */
.video-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.video-card {
  background: var(--card); border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow); display: flex; flex-direction: column;
  transition: transform .25s, box-shadow .25s;
}
.video-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.vcover { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: #e7e5e4; }
.vcover img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.video-card:hover .vcover img { transform: scale(1.06); }
.vplay {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 52px; height: 52px; border-radius: 50%;
  background: rgba(255, 255, 255, .92); color: var(--primary);
  display: flex; align-items: center; justify-content: center; font-size: 17px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, .2); transition: all .25s;
}
.video-card:hover .vplay { background: var(--primary); color: #fff; }
.vdur {
  position: absolute; right: 10px; bottom: 10px;
  background: rgba(0, 0, 0, .68); color: #fff; font-size: 12px;
  padding: 3px 8px; border-radius: 8px; font-variant-numeric: tabular-nums;
}
.vbody { padding: 16px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.vtitle {
  font-size: 15px; font-weight: 800; line-height: 1.45; min-height: 44px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.vdesc {
  font-size: 13px; color: var(--muted);
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.vmeta {
  display: flex; align-items: center; gap: 10px; margin-top: auto;
  padding-top: 10px; border-top: 1px dashed var(--border);
}
.vmeta img { width: 32px; height: 32px; border-radius: 50%; object-fit: cover; }
.vmeta .vm-name { font-size: 13px; font-weight: 700; }
.vmeta .vm-stats { font-size: 12px; color: var(--muted); }
@media (max-width: 1024px) { .video-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 768px) {
  .video-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .vbody { padding: 12px; }
}

/* ---------- 明星创作者 ---------- */
.creator-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 20px; }
.creator-card {
  background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 26px 16px; text-align: center; position: relative;
  transition: transform .25s;
}
.creator-card:hover { transform: translateY(-6px); }
.c-avatar { position: relative; width: 84px; height: 84px; margin: 0 auto; }
.c-avatar img {
  width: 100%; height: 100%; border-radius: 50%; object-fit: cover;
  border: 3px solid var(--primary-soft);
}
.c-star {
  position: absolute; top: -2px; right: -2px;
  background: var(--primary-grad); color: #fff; width: 26px; height: 26px;
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-size: 13px; box-shadow: 0 4px 10px rgba(249, 115, 22, .4);
}
.c-name { font-weight: 800; margin-top: 12px; font-size: 16px; }
.c-tag { font-size: 12px; color: var(--muted); margin-top: 4px; }
.c-fans {
  display: inline-block; margin-top: 10px; font-size: 13px; color: var(--primary-dark);
  background: var(--primary-soft); padding: 3px 12px; border-radius: 999px; font-weight: 700;
}
@media (max-width: 1024px) { .creator-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 768px) { .creator-grid { grid-template-columns: repeat(2, 1fr); } }

/* ---------- 平台特色 ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.feature-card {
  background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 28px 22px; transition: transform .25s;
}
.feature-card:hover { transform: translateY(-6px); }
.f-ico {
  width: 56px; height: 56px; border-radius: 16px; background: var(--primary-soft);
  display: flex; align-items: center; justify-content: center; font-size: 26px; margin-bottom: 16px;
}
.feature-card h3 { font-size: 17px; font-weight: 800; margin-bottom: 8px; }
.feature-card p { font-size: 13px; color: var(--muted); }
@media (max-width: 1024px) { .feature-grid { grid-template-columns: repeat(2, 1fr); } }

/* ---------- 数据统计区 ---------- */
.stats-band {
  background: var(--primary-grad); border-radius: 28px; padding: 56px 32px;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
  color: #fff; text-align: center; box-shadow: var(--shadow-lg);
}
.stat-item b { display: block; font-size: 40px; font-weight: 900; letter-spacing: 1px; font-variant-numeric: tabular-nums; }
.stat-item span { font-size: 14px; color: rgba(255, 255, 255, .9); }
@media (max-width: 768px) { .stats-band { grid-template-columns: repeat(2, 1fr); } }

/* ---------- 用户评价 ---------- */
.testi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.testi-card { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 24px; }
.t-head { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.t-head img { width: 46px; height: 46px; border-radius: 50%; object-fit: cover; }
.t-name { font-weight: 800; font-size: 15px; }
.t-stars { color: #f59e0b; font-size: 13px; letter-spacing: 1px; }
.t-text { font-size: 14px; color: var(--muted); }

/* ---------- 成功故事 ---------- */
.story-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.story-card {
  background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 30px 26px; position: relative; overflow: hidden;
  transition: transform .25s;
}
.story-card:hover { transform: translateY(-6px); }
.story-card::before {
  content: ""; position: absolute; top: 0; left: 0;
  width: 100%; height: 5px; background: var(--primary-grad);
}
.story-card h3 { font-size: 18px; font-weight: 800; margin-bottom: 12px; }
.story-card p { font-size: 14px; color: var(--muted); }
@media (max-width: 768px) { .story-grid { grid-template-columns: 1fr; } }

/* ---------- APP 展示区 ---------- */
.app-wrap {
  display: flex; align-items: center; gap: 60px; flex-wrap: wrap;
  background: var(--card); border-radius: 28px; box-shadow: var(--shadow); padding: 56px;
}
.app-text { flex: 1; min-width: 300px; }
.app-text h2 { font-size: 30px; font-weight: 900; margin-bottom: 14px; }
.app-text > p { color: var(--muted); margin-bottom: 26px; }
.app-points { display: flex; flex-direction: column; gap: 18px; }
.app-point { display: flex; gap: 14px; align-items: flex-start; }
.ap-ico {
  flex: none; width: 44px; height: 44px; border-radius: 12px;
  background: var(--primary-soft); display: flex; align-items: center; justify-content: center; font-size: 20px;
}
.app-point h4 { font-size: 15px; font-weight: 800; }
.app-point p { font-size: 13px; color: var(--muted); margin-top: 2px; }
.app-dl { display: flex; gap: 12px; margin-top: 28px; }
/* 手机模型 */
.phone-box { flex: none; }
.phone {
  width: 270px; height: 550px; background: #1c1917;
  border-radius: 44px; padding: 12px; box-shadow: var(--shadow-lg); position: relative;
}
.phone::before {
  content: ""; position: absolute; top: 22px; left: 50%; transform: translateX(-50%);
  width: 110px; height: 24px; background: #1c1917; border-radius: 0 0 16px 16px; z-index: 2;
}
.phone-screen { width: 100%; height: 100%; border-radius: 34px; overflow: hidden; background: #fff; position: relative; }
.phone-screen img { width: 100%; height: 100%; object-fit: cover; }
@media (max-width: 900px) {
  .app-wrap { flex-direction: column; text-align: center; }
  .app-point { text-align: left; }
}

/* ---------- 页脚 ---------- */
.footer { background: #292524; color: #d6d3d1; margin-top: 40px; padding: 60px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 36px; padding-bottom: 40px; }
.f-brand .logo { color: #fff; }
.f-brand p { font-size: 13px; color: #a8a29e; margin-top: 12px; max-width: 300px; }
.footer h4 { color: #fff; font-size: 15px; margin-bottom: 16px; }
.footer ul li { margin-bottom: 10px; }
.footer ul a { font-size: 13px; color: #a8a29e; transition: color .2s; }
.footer ul a:hover { color: var(--primary); }
.f-copy { border-top: 1px solid rgba(255, 255, 255, .1); padding: 18px 0; text-align: center; font-size: 13px; color: #78716c; }
@media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr 1fr; } }

/* ---------- 内页通用 ---------- */
.page-hero { background: var(--primary-grad); color: #fff; text-align: center; padding: 64px 0; }
.page-hero h1 { font-size: 36px; font-weight: 900; letter-spacing: 2px; }
.page-hero p { margin-top: 12px; color: rgba(255, 255, 255, .92); max-width: 640px; margin-left: auto; margin-right: auto; }
.page-hero .search-box { margin-top: 26px; }

/* ---------- 精选视频页筛选 ---------- */
.filter-bar { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin: 36px 0 8px; }
.filter-btn {
  padding: 8px 22px; border-radius: 999px; border: 1px solid var(--border);
  background: var(--card); color: var(--muted); font-size: 14px;
  cursor: pointer; transition: all .2s;
}
.filter-btn:hover { border-color: var(--primary); color: var(--primary); }
.filter-btn.active {
  background: var(--primary-grad); color: #fff; border-color: transparent;
  box-shadow: 0 6px 14px rgba(249, 115, 22, .35);
}
.jx-count { text-align: center; color: var(--muted); font-size: 13px; margin-bottom: 24px; }
.empty-tip { text-align: center; color: var(--muted); padding: 40px 0; grid-column: 1 / -1; }

/* ---------- 关于页 ---------- */
.about-intro { display: flex; gap: 40px; align-items: center; flex-wrap: wrap; }
.about-intro .a-img { flex: 1; min-width: 280px; border-radius: 24px; overflow: hidden; box-shadow: var(--shadow); }
.about-intro .a-img img { width: 100%; height: 320px; object-fit: cover; }
.about-intro .a-text { flex: 1; min-width: 280px; }
.about-intro .a-text h2 { font-size: 26px; font-weight: 900; margin-bottom: 16px; }
.about-intro .a-text p { color: var(--muted); margin-bottom: 12px; font-size: 14px; }
.value-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.value-card {
  background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 26px 20px; text-align: center; transition: transform .25s;
}
.value-card:hover { transform: translateY(-6px); }
.value-card .v-ico { font-size: 32px; margin-bottom: 12px; }
.value-card h3 { font-size: 16px; font-weight: 800; margin-bottom: 8px; }
.value-card p { font-size: 13px; color: var(--muted); }
.cta-card {
  background: var(--primary-grad); border-radius: 28px; padding: 60px 32px;
  text-align: center; color: #fff; box-shadow: var(--shadow-lg);
}
.cta-card h2 { font-size: 28px; font-weight: 900; margin-bottom: 14px; }
.cta-card p { color: rgba(255, 255, 255, .92); max-width: 560px; margin: 0 auto 28px; }
.cta-card .btn { background: #fff; color: var(--primary-dark); }
.cta-card .btn + .btn { background: transparent; border: 1px solid #fff; color: #fff; }
.cta-card .btn:hover { transform: translateY(-2px); }
@media (max-width: 900px) { .value-grid { grid-template-columns: repeat(2, 1fr); } }