/* ============================================
   抖音风 品牌官网 - 原创样式表
   pLbnae.cn | 修车改装视频社区
   ============================================ */

/* === CSS Variables === */
:root {
  --color-primary: #E63946;
  --color-secondary: #1D3557;
  --color-accent: #F4A261;
  --color-bg-dark: #0D1117;
  --color-bg-card: #161B22;
  --color-bg-hover: #1C2333;
  --color-text-main: #F1FAEE;
  --color-text-sub: #A8DADC;
  --color-text-muted: #8B949E;
  --color-border: #30363D;
  --color-success: #2EA043;
  --color-gradient-start: #E63946;
  --color-gradient-end: #F4A261;
  --font-main: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  --shadow-card: 0 4px 24px rgba(0,0,0,0.35);
  --shadow-hover: 0 8px 40px rgba(230,57,70,0.2);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
}

/* === Reset & Base === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-main);
  background: var(--color-bg-dark);
  color: var(--color-text-main);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--color-accent); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--color-primary); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-text-main);
}

/* === Container === */
.container { max-width: 1280px; margin: 0 auto; padding: 0 20px; }
.container-wide { max-width: 1440px; margin: 0 auto; padding: 0 20px; }

/* === Header & Navigation === */
.xyr4wr {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(13,17,23,0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition);
}
.site-header.scrolled { background: rgba(13,17,23,0.98); }
.l4b04vt {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 24px;
}
.jz6eg5d { display: flex; align-items: center; gap: 10px; }
.jz6eg5d img { height: 42px; width: auto; }
.jz6eg5d .iz5htfy7 {
  font-size: 1.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.vahfr4v { display: flex; align-items: center; gap: 4px; }
.vahfr4v a {
  color: var(--color-text-sub);
  font-size: 0.92rem;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  white-space: nowrap;
}
.vahfr4v a:hover, .vahfr4v a.active {
  color: var(--color-text-main);
  background: var(--color-bg-hover);
}
.vahfr4v a.active { color: var(--color-primary); }
.hk2gi3ql {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}
.hk2gi3ql span {
  width: 24px;
  height: 2px;
  background: var(--color-text-main);
  border-radius: 2px;
  transition: var(--transition);
}

/* === Search Bar === */
.yp42s {
  background: var(--color-bg-card);
  border-bottom: 1px solid var(--color-border);
  padding: 12px 0;
  margin-top: 68px;
}
.an224g {
  max-width: 680px;
  margin: 0 auto;
  display: flex;
  gap: 0;
  position: relative;
}
.an224g input {
  flex: 1;
  background: var(--color-bg-dark);
  border: 2px solid var(--color-border);
  border-right: none;
  border-radius: var(--radius-md) 0 0 var(--radius-md);
  padding: 12px 20px;
  font-size: 0.95rem;
  color: var(--color-text-main);
  outline: none;
  transition: var(--transition);
}
.an224g input:focus { border-color: var(--color-primary); }
.an224g input::placeholder { color: var(--color-text-muted); }
.an224g button {
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
  border: none;
  padding: 12px 28px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: #fff;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.an224g button:hover { opacity: 0.9; transform: scale(1.02); }

/* === Hero Banner === */
.hr12k7t {
  position: relative;
  width: 100%;
  min-height: 520px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hr12k7t .g35ki {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.45);
}
.hr12k7t .hfc7w {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(13,17,23,0.3) 0%, rgba(13,17,23,0.85) 100%);
}
.xxex6a {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 60px 20px;
  max-width: 800px;
}
.xxex6a h1 {
  font-size: 2.8rem;
  font-weight: 900;
  margin-bottom: 16px;
  background: linear-gradient(135deg, #fff, var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.xxex6a h1 .c6yafeu {
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.xxex6a p {
  font-size: 1.15rem;
  color: var(--color-text-sub);
  margin-bottom: 28px;
  line-height: 1.8;
}
.fhxl8 { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-top: 20px; }
.fhxl8 span {
  background: rgba(230,57,70,0.15);
  border: 1px solid rgba(230,57,70,0.3);
  color: var(--color-primary);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 500;
}

/* === Section Common === */
.section { padding: 70px 0; }
.ni2q01 { background: var(--color-bg-dark); }
.rfbmr0 { background: var(--color-bg-card); }
.zbzmihm {
  text-align: center;
  margin-bottom: 48px;
}
.zbzmihm h2 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 12px;
}
.zbzmihm h2 .hl {
  color: var(--color-primary);
}
.zbzmihm p {
  color: var(--color-text-muted);
  font-size: 1rem;
  max-width: 600px;
  margin: 0 auto;
}
.zbzmihm .fnzsgomy {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-gradient-start), var(--color-gradient-end));
  margin: 16px auto 0;
  border-radius: 2px;
}

/* === Video Card Grid === */
.psdeblqi {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.d143xbpz {
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: var(--transition);
  cursor: pointer;
}
.d143xbpz:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: var(--color-primary);
}
.d143xbpz .opuzrja {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  overflow: hidden;
}
.d143xbpz .opuzrja img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.d143xbpz:hover .opuzrja img { transform: scale(1.08); }
.d143xbpz .ncl0f {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  width: 64px;
  height: 64px;
  background: rgba(230,57,70,0.85);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}
.d143xbpz:hover .ncl0f { opacity: 1; transform: translate(-50%, -50%) scale(1); }
.d143xbpz .ncl0f::after {
  content: '';
  display: block;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 10px 0 10px 18px;
  border-color: transparent transparent transparent #fff;
  margin-left: 4px;
}
.d143xbpz .yqv3x2 {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.75);
  color: #fff;
  font-size: 0.78rem;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.78rem;
}
.d143xbpz .pcda0i { padding: 16px; }
.d143xbpz .pcda0i h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.5;
}
.d143xbpz .sbz6ag {
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--color-text-muted);
  font-size: 0.82rem;
}
.d143xbpz .sbz6ag span { display: flex; align-items: center; gap: 4px; }
.d143xbpz .qjknw5 { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.d143xbpz .qjknw5 span {
  background: rgba(244,162,97,0.12);
  color: var(--color-accent);
  font-size: 0.75rem;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 0.75rem;
}

/* === Expert / Team Cards === */
.kclfm {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.yfecgg {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  text-align: center;
  transition: var(--transition);
}
.yfecgg:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.yfecgg .fitwxlh {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  margin: 0 auto 16px;
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: #fff;
  font-weight: 800;
}
.yfecgg h4 { font-size: 1.1rem; margin-bottom: 4px; }
.yfecgg .gbycfzg { color: var(--color-primary); font-size: 0.85rem; margin-bottom: 12px; }
.yfecgg .f2ran { color: var(--color-text-muted); font-size: 0.88rem; margin-bottom: 16px; line-height: 1.6; }
.yfecgg .jsvvpi { color: var(--color-accent); font-size: 0.82rem; margin-bottom: 14px; }
.yfecgg .fyg73kul { display: flex; justify-content: center; gap: 12px; }
.yfecgg .fyg73kul a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-bg-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-sub);
  font-size: 0.85rem;
  transition: var(--transition);
}
.yfecgg .fyg73kul a:hover { background: var(--color-primary); color: #fff; }
.ivl767 {
  display: inline-block;
  padding: 8px 20px;
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  transition: var(--transition);
  margin: 4px;
}
.ivl767:hover { background: var(--color-primary); color: #fff; }

/* === Brand Wall === */
.z9myw {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 36px;
  padding: 20px 0;
}
.z9myw .dd9ek7v {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px 32px;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-text-sub);
  transition: var(--transition);
  min-width: 160px;
  text-align: center;
}
.z9myw .dd9ek7v:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: scale(1.05);
}

/* === FAQ Section === */
.hk8bz9fl { max-width: 800px; margin: 0 auto; }
.ja2wu {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition);
}
.ja2wu:hover { border-color: var(--color-primary); }
.fbq2u11 {
  padding: 18px 24px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition);
}
.fbq2u11:hover { color: var(--color-primary); }
.fbq2u11 .stwnpq {
  font-size: 1.2rem;
  transition: transform 0.3s ease;
  color: var(--color-primary);
}
.faq-item.active .fbq2u11 .stwnpq { transform: rotate(180deg); }
.ax486b {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  color: var(--color-text-muted);
  font-size: 0.92rem;
  line-height: 1.8;
}
.faq-item.active .ax486b { max-height: 300px; padding: 0 24px 18px; }

/* === Reviews === */
.fmb05i {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.okqs44u {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: var(--transition);
}
.okqs44u:hover { border-color: var(--color-accent); transform: translateY(-3px); }
.okqs44u .huqe11 { color: var(--color-accent); font-size: 1rem; margin-bottom: 12px; letter-spacing: 2px; }
.okqs44u .vs4ab3 {
  color: var(--color-text-sub);
  font-size: 0.92rem;
  line-height: 1.7;
  margin-bottom: 16px;
  font-style: italic;
}
.okqs44u .fmu2ulf {
  display: flex;
  align-items: center;
  gap: 12px;
}
.okqs44u .fmu2ulf .oaft95c {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-secondary), var(--color-primary));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 0.9rem;
}
.okqs44u .fmu2ulf .amvzf .m6n9u2co { font-weight: 600; font-size: 0.9rem; }
.okqs44u .fmu2ulf .amvzf .i51u3tw { color: var(--color-text-muted); font-size: 0.78rem; }

/* === Contact Section === */
.ttj3hmco {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.kzydkgrj {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  text-align: center;
  transition: var(--transition);
}
.kzydkgrj:hover { border-color: var(--color-primary); }
.kzydkgrj .gqhuja {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 1.4rem;
  color: #fff;
}
.kzydkgrj h4 { margin-bottom: 8px; font-size: 1rem; }
.kzydkgrj p { color: var(--color-text-muted); font-size: 0.9rem; }

/* === How-To Guide === */
.jc8byn {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
  max-width: 1000px;
  margin: 0 auto;
}
.hykt0j {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px 20px;
  text-align: center;
  position: relative;
  transition: var(--transition);
}
.hykt0j:hover { border-color: var(--color-accent); }
.hykt0j .c1euw {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
  font-weight: 800;
  font-size: 1.2rem;
  color: #fff;
}
.hykt0j h4 { font-size: 1rem; margin-bottom: 8px; }
.hykt0j p { color: var(--color-text-muted); font-size: 0.88rem; line-height: 1.6; }

/* === Social Share === */
.a3uyh6d {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  padding: 20px 0;
}
.hmbklv8 {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  color: #fff;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}
.hmbklv8:hover { transform: translateY(-2px); opacity: 0.9; }
.share-btn.wechat { background: #07C160; }
.share-btn.weibo { background: #E6162D; }
.share-btn.douyin { background: #161823; border: 1px solid #333; }
.share-btn.bilibili { background: #00A1D6; }

/* === Footer === */
.agrvx {
  background: #0A0E14;
  border-top: 1px solid var(--color-border);
  padding: 50px 0 0;
}
.gqvehgp {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.o75z874 h4 {
  font-size: 1rem;
  margin-bottom: 16px;
  color: var(--color-text-main);
}
.o75z874 p, .o75z874 a {
  color: var(--color-text-muted);
  font-size: 0.88rem;
  line-height: 2;
}
.o75z874 a:hover { color: var(--color-primary); }
.o75z874 .bleqoo { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.o75z874 .bleqoo img { height: 36px; }
.o75z874 .bleqoo .iz5htfy7 {
  font-size: 1.3rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.z1ayb8 { display: flex; gap: 20px; margin-top: 16px; }
.z1ayb8 .ovbuciga { text-align: center; }
.z1ayb8 .ovbuciga img { width: 110px; height: 110px; border-radius: var(--radius-sm); margin-bottom: 6px; }
.z1ayb8 .ovbuciga span { font-size: 0.78rem; color: var(--color-text-muted); }
.i686x {
  border-top: 1px solid var(--color-border);
  padding: 20px 0;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.82rem;
}
.i686x .i8i7alt0 { margin-top: 6px; color: var(--color-text-muted); }

/* === Breadcrumb === */
.breadcrumb {
  padding: 14px 0;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}
.breadcrumb a { color: var(--color-text-sub); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb span { margin: 0 8px; }

/* === AI Section === */
.n0lf5wg3 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.uqjk0 {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.uqjk0::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-gradient-start), var(--color-gradient-end));
}
.uqjk0:hover { border-color: var(--color-primary); transform: translateY(-4px); }
.uqjk0 .fe3q8el {
  font-size: 2rem;
  margin-bottom: 14px;
}
.uqjk0 h4 { font-size: 1.05rem; margin-bottom: 10px; }
.uqjk0 p { color: var(--color-text-muted); font-size: 0.9rem; line-height: 1.7; }

/* === Community Grid === */
.tnmfh1 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}
.qnsjmyvf {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 22px 18px;
  text-align: center;
  transition: var(--transition);
}
.qnsjmyvf:hover { border-color: var(--color-primary); background: var(--color-bg-hover); }
.qnsjmyvf .zq1skg { font-size: 1.8rem; margin-bottom: 10px; }
.qnsjmyvf h5 { font-size: 0.95rem; margin-bottom: 6px; }
.qnsjmyvf .o52bp { color: var(--color-text-muted); font-size: 0.82rem; }

/* === Inner Page Banner === */
.cf84w7eu {
  position: relative;
  height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-top: 68px;
}
.cf84w7eu img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.35);
}
.cf84w7eu .uoj2nuts {
  position: relative;
  z-index: 2;
  text-align: center;
}
.cf84w7eu h1 { font-size: 2.2rem; margin-bottom: 10px; }
.cf84w7eu p { color: var(--color-text-sub); font-size: 1rem; }

/* === Content Page === */
.page-content { padding: 50px 0; }
.page-content p { margin-bottom: 16px; color: var(--color-text-sub); line-height: 1.8; }
.page-content h2 { font-size: 1.6rem; margin: 32px 0 16px; color: var(--color-text-main); }
.page-content h3 { font-size: 1.3rem; margin: 24px 0 12px; }

/* === Stats Bar === */
.rdkjm {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  padding: 40px 0;
}
.q52i82 {
  text-align: center;
  padding: 24px 16px;
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}
.q52i82 .yo0mg {
  font-size: 2.2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.q52i82 .j9wd5 { color: var(--color-text-muted); font-size: 0.88rem; margin-top: 6px; }

/* === Responsive === */
@media (max-width: 1024px) {
  .gqvehgp { grid-template-columns: 1fr 1fr; }
  .rdkjm { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .hk2gi3ql { display: flex; }
  .vahfr4v {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    width: 100%;
    background: rgba(13,17,23,0.98);
    flex-direction: column;
    padding: 16px;
    border-bottom: 1px solid var(--color-border);
  }
  .main-nav.open { display: flex; }
  .vahfr4v a { padding: 12px 16px; width: 100%; }
  .xxex6a h1 { font-size: 1.8rem; }
  .hr12k7t { min-height: 400px; }
  .section { padding: 50px 0; }
  .zbzmihm h2 { font-size: 1.5rem; }
  .psdeblqi { grid-template-columns: 1fr; }
  .kclfm { grid-template-columns: 1fr; }
  .gqvehgp { grid-template-columns: 1fr; gap: 24px; }
  .rdkjm { grid-template-columns: 1fr 1fr; }
  .an224g { flex-direction: column; }
  .an224g input { border-radius: var(--radius-md); border-right: 2px solid var(--color-border); }
  .an224g button { border-radius: var(--radius-md); margin-top: 8px; }
  .cf84w7eu { height: 220px; }
  .cf84w7eu h1 { font-size: 1.6rem; }
}
@media (max-width: 480px) {
  .xxex6a h1 { font-size: 1.5rem; }
  .container { padding: 0 14px; }
  .d143xbpz .pcda0i h3 { font-size: 0.92rem; }
  .fmb05i { grid-template-columns: 1fr; }
  .tnmfh1 { grid-template-columns: 1fr 1fr; }
}

/* === Utility === */
.text-center { text-align: center; }
.v9gc4 {
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.mt-20 { margin-top: 20px; }
.mb-20 { margin-bottom: 20px; }
.mt-40 { margin-top: 40px; }
.mb-40 { margin-bottom: 40px; }
.lazy-load { opacity: 0; transition: opacity 0.5s ease; }
.lazy-load.loaded { opacity: 1; }

/* === MCP Placeholder === */
.mcp-widget {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
  margin: 20px 0;
}
.mcp-widget .mcp-title { font-size: 1rem; margin-bottom: 8px; color: var(--color-text-sub); }
.mcp-widget .mcp-status { color: var(--color-success); font-size: 0.85rem; }

/* === Video Overlay Modal === */
.ccpuzt {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.85);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.video-overlay.active { opacity: 1; }
.av0cl8 {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  width: 90%;
  max-width: 800px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.6);
  transform: scale(0.9);
  transition: transform 0.3s ease;
}
.video-overlay.active .av0cl8 { transform: scale(1); }
.v4aie02 {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border);
}
.iolj79l {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-main);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
  padding-right: 16px;
}
.msu08a1 {
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-size: 1.6rem;
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
  transition: var(--transition);
}
.msu08a1:hover { color: var(--color-primary); }
.h1bbf {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  background: #000;
}
.c3gb0k {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}
.c3gb0k img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}
.va233shi {
  position: relative;
  z-index: 2;
  cursor: pointer;
  transition: transform 0.3s ease;
}
.va233shi:hover { transform: scale(1.1); }
.z1fimde {
  position: relative;
  z-index: 2;
  color: #fff;
  text-align: center;
  margin-top: 16px;
  font-size: 1rem;
}
.z1fimde small { color: rgba(255,255,255,0.5); font-size: 0.8rem; }
.vzaxp9w {
  padding: 12px 20px;
  border-top: 1px solid var(--color-border);
  text-align: center;
}
.vzaxp9w p { color: var(--color-text-muted); font-size: 0.82rem; }

/* === Back To Top === */
.jhvnhty6 {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
  color: #fff;
  font-size: 1.3rem;
  border: none;
  cursor: pointer;
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: var(--transition);
  box-shadow: 0 4px 16px rgba(230,57,70,0.3);
}
.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.jhvnhty6:hover { transform: translateY(-4px); }

/* === Scroll Animation === */
.d143xbpz,
.uqjk0,
.yfecgg,
.qnsjmyvf,
.okqs44u,
.kzydkgrj,
.hykt0j,
.ja2wu {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.video-card.tvb596c2,
.ai-feature-card.tvb596c2,
.expert-card.tvb596c2,
.community-cat.tvb596c2,
.review-card.tvb596c2,
.contact-card.tvb596c2,
.howto-step.tvb596c2,
.faq-item.tvb596c2 {
  opacity: 1;
  transform: translateY(0);
}

/* === Brand Wall === */
.z9myw {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 16px;
}
.dd9ek7v {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px 16px;
  text-align: center;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-sub);
  transition: var(--transition);
}
.dd9ek7v:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: var(--color-bg-hover);
}

/* === Button Outline === */
.ivl767 {
  display: inline-block;
  padding: 6px 16px;
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  transition: var(--transition);
  margin-right: 8px;
}
.ivl767:hover {
  background: var(--color-primary);
  color: #fff;
}