/* ============================================
   溏心vlog (溏心vlog) - 官网样式表
   域名: adLL9g.cn
   原创设计 - 橙黑赛车主题
   ============================================ */

/* ===== CSS变量 ===== */
:root {
  --kkt-orange: #FF6B00;
  --kkt-orange-light: #FF8C33;
  --kkt-orange-dark: #CC5500;
  --kkt-dark: #0A0A1A;
  --kkt-dark2: #12121F;
  --kkt-dark3: #1A1A2E;
  --kkt-gray: #2A2A3E;
  --kkt-gray2: #3A3A52;
  --kkt-text: #E8E8F0;
  --kkt-text2: #B0B0C8;
  --kkt-text3: #888899;
  --kkt-white: #FFFFFF;
  --kkt-bg: #F5F5F8;
  --kkt-bg2: #EEEEF5;
  --kkt-border: #E0E0EC;
  --kkt-shadow: 0 4px 20px rgba(10,10,26,0.12);
  --kkt-shadow-hover: 0 8px 32px rgba(255,107,0,0.18);
  --kkt-radius: 12px;
  --kkt-radius-sm: 6px;
  --kkt-radius-lg: 20px;
  --kkt-transition: 0.3s cubic-bezier(0.4,0,0.2,1);
  --kkt-font: 'PingFang SC','Microsoft YaHei','Helvetica Neue',sans-serif;
  --header-h: 70px;
}

/* ===== 重置与基础 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--kkt-font);
  background: var(--kkt-white);
  color: #333344;
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: var(--kkt-orange); text-decoration: none; transition: color var(--kkt-transition); }
a:hover { color: var(--kkt-orange-dark); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: var(--kkt-font); }
input, textarea { font-family: var(--kkt-font); }

/* 干扰标签样式 - 不影响布局 */
div[id^="bh"],div[id^="zn"],div[id^="d5"],div[id^="ky"],div[id^="cy"],
div[id^="or"],div[id^="xg"],div[id^="wy"],div[id^="je"],div[id^="ae"],
div[id^="kh"],div[id^="oe"],div[id^="ul"],div[id^="lw"],div[id^="yp"],
div[id^="vl"],div[id^="iq"],div[id^="po"],div[class^="cw"],div[class^="fq"],
div[class^="ky"],div[class^="or"],div[class^="wy"],div[class^="z2"],
div[id^="uc"],div[id^="cm"],div[id^="fg"],div[id^="gb"],div[id^="ae"],
div[id^="kh"],div[id^="oe"],div[id^="ul"],div[id^="lw"],div[id^="yp"] {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
  visibility: hidden;
  pointer-events: none;
  opacity: 0;
}

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

/* ===== 通用按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 12px 28px;
  border-radius: var(--kkt-radius);
  font-size: 0.95rem;
  font-weight: 600;
  transition: all var(--kkt-transition);
  cursor: pointer;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--kkt-orange), var(--kkt-orange-dark));
  color: var(--kkt-white);
  box-shadow: 0 4px 16px rgba(255,107,0,0.3);
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--kkt-orange-light), var(--kkt-orange));
  color: var(--kkt-white);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255,107,0,0.4);
}
.btn-outline {
  border: 2px solid var(--kkt-orange);
  color: var(--kkt-orange);
  background: transparent;
}
.btn-outline:hover {
  background: var(--kkt-orange);
  color: var(--kkt-white);
  transform: translateY(-2px);
}
.btn-lg { padding: 16px 40px; font-size: 1.05rem; }
.btn-sm { padding: 8px 18px; font-size: 0.85rem; }

/* ===== 头部导航 ===== */
.kkt-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(10,10,26,0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,107,0,0.15);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 20px;
}
.header-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.header-logo a {
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-img {
  width: 44px;
  height: 44px;
  object-fit: contain;
  border-radius: 8px;
}
.logo-text {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--kkt-white);
  letter-spacing: 2px;
  background: linear-gradient(135deg, var(--kkt-orange), #FFB347);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.kkt-nav { flex: 1; }
.nav-list {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
}
.nav-item a {
  display: block;
  padding: 8px 14px;
  color: var(--kkt-text2);
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: var(--kkt-radius-sm);
  transition: all var(--kkt-transition);
}
.nav-item a:hover,
.nav-item.active a {
  color: var(--kkt-orange);
  background: rgba(255,107,0,0.1);
}
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--kkt-white);
  border-radius: 2px;
  transition: all var(--kkt-transition);
}

/* ===== 搜索栏 ===== */
.kkt-search-bar {
  background: rgba(26,26,46,0.98);
  border-top: 1px solid rgba(255,107,0,0.08);
  padding: 10px 0;
}
.search-form { display: flex; flex-direction: column; gap: 8px; }
.search-input-wrap {
  display: flex;
  align-items: center;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,107,0,0.25);
  border-radius: 50px;
  overflow: hidden;
  max-width: 600px;
  transition: border-color var(--kkt-transition);
}
.search-input-wrap:focus-within { border-color: var(--kkt-orange); }
.search-input {
  flex: 1;
  padding: 10px 20px;
  background: transparent;
  border: none;
  outline: none;
  color: var(--kkt-white);
  font-size: 0.9rem;
}
.search-input::placeholder { color: var(--kkt-text3); }
.search-btn {
  padding: 10px 18px;
  background: var(--kkt-orange);
  color: var(--kkt-white);
  border-radius: 0 50px 50px 0;
  transition: background var(--kkt-transition);
}
.search-btn:hover { background: var(--kkt-orange-dark); }
.search-hot-tags {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 0.8rem;
}
.hot-label { color: var(--kkt-text3); }
.hot-tag {
  color: var(--kkt-text2);
  padding: 2px 10px;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 20px;
  font-size: 0.78rem;
  transition: all var(--kkt-transition);
}
.hot-tag:hover {
  color: var(--kkt-orange);
  border-color: var(--kkt-orange);
}

/* ===== 面包屑 ===== */
.kkt-breadcrumb {
  background: var(--kkt-bg);
  border-bottom: 1px solid var(--kkt-border);
  padding: 8px 0;
}
.breadcrumb-list {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  color: var(--kkt-text3);
}
.breadcrumb-list a { color: var(--kkt-text3); }
.breadcrumb-list a:hover { color: var(--kkt-orange); }
.bc-sep { color: var(--kkt-text3); }

/* ===== Hero 区域 ===== */
.kkt-hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(10,10,26,0.92) 0%,
    rgba(10,10,26,0.75) 50%,
    rgba(10,10,26,0.5) 100%
  );
}
.hero-content {
  position: relative;
  z-index: 1;
  padding: 80px 20px;
  max-width: 700px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,107,0,0.15);
  border: 1px solid rgba(255,107,0,0.4);
  color: var(--kkt-orange);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 20px;
  letter-spacing: 1px;
}
.badge-icon { font-size: 1rem; }
.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 900;
  color: var(--kkt-white);
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: 2px;
}
.brand-name {
  background: linear-gradient(135deg, var(--kkt-orange), #FFB347);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: clamp(1rem, 2vw, 1.4rem);
  color: var(--kkt-text2);
  font-weight: 400;
}
.hero-desc {
  color: var(--kkt-text2);
  font-size: 1rem;
  margin-bottom: 30px;
  max-width: 560px;
  line-height: 1.8;
}
.hero-stats {
  display: flex;
  gap: 32px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}
.stat-item { text-align: center; }
.stat-num {
  display: block;
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--kkt-orange);
  line-height: 1;
}
.stat-label {
  font-size: 0.78rem;
  color: var(--kkt-text3);
  margin-top: 4px;
}
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-scroll-hint {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  animation: bounce 2s infinite;
}
.scroll-arrow { color: var(--kkt-orange); font-size: 1.5rem; }
@keyframes bounce {
  0%,100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ===== 通用Section ===== */
.kkt-section { padding: 80px 0; }
.section-header { text-align: center; margin-bottom: 50px; }
.section-tag {
  display: inline-block;
  background: rgba(255,107,0,0.1);
  color: var(--kkt-orange);
  border: 1px solid rgba(255,107,0,0.3);
  padding: 4px 16px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  color: #1A1A2E;
  line-height: 1.3;
  margin-bottom: 14px;
}
.section-title em {
  font-style: normal;
  color: var(--kkt-orange);
}
.section-desc {
  color: #666677;
  font-size: 1rem;
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.8;
}
.section-more { text-align: center; margin-top: 40px; }

/* ===== 视频分类标签 ===== */
.video-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
  justify-content: center;
}
.vtab {
  padding: 8px 20px;
  border: 1.5px solid var(--kkt-border);
  border-radius: 50px;
  font-size: 0.88rem;
  color: #555566;
  background: var(--kkt-white);
  transition: all var(--kkt-transition);
  font-weight: 500;
}
.vtab:hover, .vtab.active {
  border-color: var(--kkt-orange);
  color: var(--kkt-orange);
  background: rgba(255,107,0,0.06);
}

/* ===== 视频卡片网格 ===== */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 28px;
}
.video-card {
  background: var(--kkt-white);
  border-radius: var(--kkt-radius);
  overflow: hidden;
  box-shadow: var(--kkt-shadow);
  transition: all var(--kkt-transition);
  border: 1px solid var(--kkt-border);
}
.video-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--kkt-shadow-hover);
}
.vc-thumb-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
  background: var(--kkt-dark);
}
.vc-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.video-card:hover .vc-thumb { transform: scale(1.06); }
.vc-play-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--kkt-transition);
}
.video-card:hover .vc-play-overlay { opacity: 1; }
.vc-play-btn {
  width: 64px;
  height: 64px;
  background: rgba(255,107,0,0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: scale(0.8);
  transition: transform var(--kkt-transition);
  box-shadow: 0 4px 20px rgba(255,107,0,0.5);
}
.video-card:hover .vc-play-btn { transform: scale(1); }
.vc-duration {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(0,0,0,0.75);
  color: #fff;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.78rem;
  font-weight: 600;
}
.vc-cat-tag {
  position: absolute;
  top: 10px;
  left: 10px;
  background: var(--kkt-orange);
  color: #fff;
  padding: 3px 10px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
}
.vc-info { padding: 18px 20px; }
.vc-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.5;
}
.vc-title a { color: #1A1A2E; }
.vc-title a:hover { color: var(--kkt-orange); }
.vc-desc {
  font-size: 0.85rem;
  color: #888899;
  margin-bottom: 12px;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.vc-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.78rem;
  color: #999aaa;
}

/* ===== 娱乐专区 ===== */
.kkt-entertainment { background: var(--kkt-dark); }
.kkt-entertainment .section-title { color: var(--kkt-white); }
.kkt-entertainment .section-desc { color: var(--kkt-text2); }
.ent-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 20px;
}
.ent-card {
  background: var(--kkt-dark3);
  border-radius: var(--kkt-radius);
  overflow: hidden;
  border: 1px solid rgba(255,107,0,0.1);
  transition: all var(--kkt-transition);
}
.ent-card:hover {
  border-color: rgba(255,107,0,0.4);
  transform: translateY(-4px);
  box-shadow: var(--kkt-shadow-hover);
}
.ent-card.ent-large {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1.5fr 1fr;
}
.ent-img-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
}
.ent-card.ent-large .ent-img-wrap { aspect-ratio: auto; }
.ent-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.ent-card:hover .ent-img-wrap img { transform: scale(1.05); }
.ent-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%,-50%) scale(0.8);
  width: 60px;
  height: 60px;
  background: rgba(255,107,0,0.85);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: all var(--kkt-transition);
}
.ent-card:hover .ent-play-btn { opacity: 1; transform: translate(-50%,-50%) scale(1); }
.ent-label {
  position: absolute;
  bottom: 10px;
  left: 10px;
  display: flex;
  gap: 6px;
}
.ent-tag {
  background: var(--kkt-orange);
  color: #fff;
  padding: 3px 10px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
}
.ent-hot {
  background: rgba(255,50,50,0.85);
  color: #fff;
  padding: 3px 10px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
}
.ent-info { padding: 18px 20px; }
.ent-info h3 { font-size: 0.95rem; font-weight: 700; margin-bottom: 8px; }
.ent-info h3 a { color: var(--kkt-text); }
.ent-info h3 a:hover { color: var(--kkt-orange); }
.ent-info p { font-size: 0.85rem; color: var(--kkt-text3); line-height: 1.6; margin-bottom: 10px; }
.ent-meta { display: flex; gap: 12px; font-size: 0.78rem; color: var(--kkt-text3); flex-wrap: wrap; }

/* ===== AI赋能区 ===== */
.kkt-ai { background: linear-gradient(135deg, #0A0A1A 0%, #1A1A2E 100%); }
.kkt-ai .section-title { color: var(--kkt-white); }
.kkt-ai .section-desc { color: var(--kkt-text2); }
.ai-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: center;
}
.ai-img {
  border-radius: var(--kkt-radius-lg);
  box-shadow: 0 20px 60px rgba(255,107,0,0.2);
}
.ai-features { display: flex; flex-direction: column; gap: 28px; }
.ai-feature-item { display: flex; gap: 16px; align-items: flex-start; }
.ai-icon {
  font-size: 2rem;
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  background: rgba(255,107,0,0.12);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255,107,0,0.2);
}
.ai-text h3 { font-size: 1rem; font-weight: 700; color: var(--kkt-white); margin-bottom: 6px; }
.ai-text p { font-size: 0.88rem; color: var(--kkt-text2); line-height: 1.7; }
.ai-cta { margin-top: 8px; }

/* AI Stats */
.ai-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 40px;
}
.ai-stat-card {
  background: rgba(255,107,0,0.08);
  border: 1px solid rgba(255,107,0,0.2);
  border-radius: var(--kkt-radius);
  padding: 28px 20px;
  text-align: center;
}
.ai-stat-num {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--kkt-orange);
  line-height: 1;
  margin-bottom: 8px;
}
.ai-stat-label { font-size: 0.85rem; color: var(--kkt-text2); }

/* ===== 车友社区 ===== */
.community-cats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 50px;
}
.comm-cat-card {
  background: var(--kkt-white);
  border: 1.5px solid var(--kkt-border);
  border-radius: var(--kkt-radius);
  padding: 28px 20px;
  text-align: center;
  transition: all var(--kkt-transition);
  display: block;
}
.comm-cat-card:hover {
  border-color: var(--kkt-orange);
  transform: translateY(-4px);
  box-shadow: var(--kkt-shadow-hover);
}
.comm-cat-icon { font-size: 2.5rem; margin-bottom: 12px; }
.comm-cat-card h4 { font-size: 1.05rem; font-weight: 700; color: #1A1A2E; margin-bottom: 6px; }
.comm-cat-card p { font-size: 0.82rem; color: #888899; margin-bottom: 10px; }
.comm-count { font-size: 0.78rem; color: var(--kkt-orange); font-weight: 600; }

/* 加入社区指南 */
.join-guide { background: var(--kkt-bg); border-radius: var(--kkt-radius-lg); padding: 40px; }
.join-title { font-size: 1.4rem; font-weight: 800; color: #1A1A2E; margin-bottom: 30px; text-align: center; }
.join-steps { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.join-step { display: flex; gap: 16px; align-items: flex-start; }
.step-num {
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--kkt-orange);
  opacity: 0.3;
  flex-shrink: 0;
  line-height: 1;
}
.step-content h4 { font-size: 1rem; font-weight: 700; color: #1A1A2E; margin-bottom: 6px; }
.step-content p { font-size: 0.88rem; color: #666677; line-height: 1.7; }

/* ===== 专家团队 ===== */
.kkt-experts { background: var(--kkt-dark); }
.kkt-experts .section-title { color: var(--kkt-white); }
.kkt-experts .section-desc { color: var(--kkt-text2); }
.experts-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.expert-card {
  background: var(--kkt-dark3);
  border-radius: var(--kkt-radius);
  overflow: hidden;
  border: 1px solid rgba(255,107,0,0.1);
  transition: all var(--kkt-transition);
}
.expert-card:hover {
  border-color: rgba(255,107,0,0.4);
  transform: translateY(-4px);
  box-shadow: var(--kkt-shadow-hover);
}
.expert-avatar { position: relative; aspect-ratio: 1; overflow: hidden; }
.expert-avatar img { width: 100%; height: 100%; object-fit: cover; }
.expert-badge {
  position: absolute;
  bottom: 10px;
  left: 10px;
  background: var(--kkt-orange);
  color: #fff;
  padding: 3px 10px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
}
.expert-info { padding: 18px 16px; }
.expert-name { font-size: 1.1rem; font-weight: 800; color: var(--kkt-white); margin-bottom: 4px; }
.expert-title { font-size: 0.78rem; color: var(--kkt-orange); margin-bottom: 10px; }
.expert-bio { font-size: 0.82rem; color: var(--kkt-text2); line-height: 1.6; margin-bottom: 12px; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.expert-awards { display: flex; flex-direction: column; gap: 4px; margin-bottom: 12px; }
.award-tag { font-size: 0.75rem; color: var(--kkt-text3); }
.expert-social { display: flex; gap: 8px; margin-bottom: 14px; }
.social-link { font-size: 0.78rem; color: var(--kkt-text3); padding: 3px 10px; border: 1px solid rgba(255,255,255,0.1); border-radius: 20px; transition: all var(--kkt-transition); }
.social-link:hover { color: var(--kkt-orange); border-color: var(--kkt-orange); }
.expert-btns { display: flex; gap: 8px; flex-wrap: wrap; }

/* ===== 合作品牌 ===== */
.kkt-partners { background: var(--kkt-bg); }
.partners-wall {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.partner-logo {
  background: var(--kkt-white);
  border: 1.5px solid var(--kkt-border);
  border-radius: var(--kkt-radius);
  padding: 24px 16px;
  text-align: center;
  transition: all var(--kkt-transition);
}
.partner-logo:hover {
  border-color: var(--kkt-orange);
  transform: translateY(-2px);
  box-shadow: var(--kkt-shadow);
}
.partner-name { display: block; font-size: 1.3rem; font-weight: 900; color: #1A1A2E; letter-spacing: 1px; }
.partner-logo-inner small { display: block; font-size: 0.75rem; color: #888899; margin-top: 4px; }

/* ===== 用户评价 ===== */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.review-card {
  background: var(--kkt-white);
  border: 1.5px solid var(--kkt-border);
  border-radius: var(--kkt-radius);
  padding: 24px;
  transition: all var(--kkt-transition);
}
.review-card:hover {
  border-color: var(--kkt-orange);
  box-shadow: var(--kkt-shadow-hover);
  transform: translateY(-3px);
}
.review-header { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.reviewer-avatar {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--kkt-orange), var(--kkt-orange-dark));
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.reviewer-info { flex: 1; }
.reviewer-info strong { display: block; font-size: 0.95rem; color: #1A1A2E; }
.reviewer-info span { font-size: 0.78rem; color: #888899; }
.review-stars { color: #FFB347; font-size: 0.9rem; letter-spacing: 1px; }
.review-text { font-size: 0.9rem; color: #444455; line-height: 1.7; margin-bottom: 14px; }
.review-meta { display: flex; justify-content: space-between; font-size: 0.78rem; color: #888899; flex-wrap: wrap; gap: 6px; }

/* ===== FAQ ===== */
.kkt-faq { background: var(--kkt-bg); }
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: var(--kkt-white); border: 1.5px solid var(--kkt-border); border-radius: var(--kkt-radius); overflow: hidden; }
.faq-q {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 22px;
  font-size: 0.95rem;
  font-weight: 600;
  color: #1A1A2E;
  text-align: left;
  transition: all var(--kkt-transition);
}
.faq-q:hover { color: var(--kkt-orange); background: rgba(255,107,0,0.03); }
.faq-q.active { color: var(--kkt-orange); }
.faq-arrow { font-size: 0.75rem; color: var(--kkt-orange); transition: transform var(--kkt-transition); flex-shrink: 0; }
.faq-q.active .faq-arrow { transform: rotate(180deg); }
.faq-a { display: none; padding: 0 22px 18px; }
.faq-a.open { display: block; }
.faq-a p { font-size: 0.9rem; color: #555566; line-height: 1.8; }

/* ===== 联系我们 ===== */
.contact-layout { display: grid; grid-template-columns: 1.5fr 1fr; gap: 40px; align-items: start; }
.company-photo { width: 100%; border-radius: var(--kkt-radius); margin-bottom: 20px; aspect-ratio: 16/9; object-fit: cover; }
.company-details h3 { font-size: 1.2rem; font-weight: 800; color: #1A1A2E; margin-bottom: 16px; }
.contact-list { display: flex; flex-direction: column; gap: 10px; }
.contact-list li { display: flex; gap: 12px; font-size: 0.88rem; align-items: flex-start; }
.ci-label { color: var(--kkt-orange); font-weight: 600; flex-shrink: 0; min-width: 60px; }
.contact-community { margin-top: 24px; padding-top: 24px; border-top: 1px solid var(--kkt-border); }
.contact-community h4 { font-size: 1rem; font-weight: 700; color: #1A1A2E; margin-bottom: 14px; }
.comm-entries { display: flex; flex-direction: column; gap: 10px; }
.comm-entry { display: flex; align-items: center; gap: 10px; font-size: 0.88rem; color: #444455; padding: 10px 14px; background: var(--kkt-bg); border-radius: var(--kkt-radius-sm); transition: all var(--kkt-transition); }
.comm-entry:hover { background: rgba(255,107,0,0.06); color: var(--kkt-orange); }
.ce-icon { font-size: 1.2rem; }
.contact-qr-block { display: flex; flex-direction: column; gap: 24px; }
.qr-item { text-align: center; }
.qr-img { width: 160px; height: 160px; object-fit: cover; border-radius: var(--kkt-radius); margin: 0 auto 10px; border: 2px solid var(--kkt-border); }
.qr-item p { font-size: 0.85rem; color: #555566; line-height: 1.6; }

/* 社交分享 */
.social-share { margin-top: 40px; padding-top: 30px; border-top: 1px solid var(--kkt-border); }
.social-share h4 { font-size: 1rem; font-weight: 700; color: #1A1A2E; margin-bottom: 14px; }
.share-btns { display: flex; gap: 10px; flex-wrap: wrap; }
.share-btn { padding: 9px 22px; border-radius: 50px; font-size: 0.85rem; font-weight: 600; color: #fff; transition: all var(--kkt-transition); }
.share-btn:hover { transform: translateY(-2px); opacity: 0.9; }
.share-weixin { background: #07C160; }
.share-weibo { background: #E6162D; }
.share-douyin { background: #010101; border: 1px solid #333; }
.share-bilibili { background: #00A1D6; }
.share-qq { background: #12B7F5; }

/* ===== 页脚 ===== */
.kkt-footer { background: var(--kkt-dark); color: var(--kkt-text2); }
.footer-top { padding: 60px 0 40px; border-bottom: 1px solid rgba(255,255,255,0.06); }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px; }
.footer-logo { width: 80px; height: 40px; object-fit: contain; margin-bottom: 14px; }
.footer-slogan { font-size: 0.9rem; color: var(--kkt-text3); margin-bottom: 6px; line-height: 1.6; }
.footer-domain { font-size: 0.82rem; color: var(--kkt-orange); margin-bottom: 16px; }
.footer-social { display: flex; gap: 8px; flex-wrap: wrap; }
.fsocial-link { font-size: 0.8rem; color: var(--kkt-text3); padding: 4px 12px; border: 1px solid rgba(255,255,255,0.1); border-radius: 20px; transition: all var(--kkt-transition); }
.fsocial-link:hover { color: var(--kkt-orange); border-color: var(--kkt-orange); }
.footer-nav-col h5 { font-size: 0.95rem; font-weight: 700; color: var(--kkt-white); margin-bottom: 16px; }
.footer-nav-col ul { display: flex; flex-direction: column; gap: 8px; }
.footer-nav-col a { font-size: 0.85rem; color: var(--kkt-text3); transition: color var(--kkt-transition); }
.footer-nav-col a:hover { color: var(--kkt-orange); }
.footer-bottom { padding: 20px 0; }
.footer-bottom-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; }
.footer-copy { font-size: 0.82rem; color: var(--kkt-text3); }
.footer-update { font-size: 0.82rem; color: var(--kkt-orange); }
.footer-links { font-size: 0.82rem; color: var(--kkt-text3); }
.footer-links a { color: var(--kkt-text3); margin: 0 4px; }
.footer-links a:hover { color: var(--kkt-orange); }

/* ===== 内页Hero ===== */
.inner-hero {
  background: linear-gradient(135deg, var(--kkt-dark) 0%, var(--kkt-dark3) 100%);
  padding: 60px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.inner-hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 50% 50%, rgba(255,107,0,0.06) 0%, transparent 60%);
  pointer-events: none;
}
.inner-hero-ai { background: linear-gradient(135deg, #050510 0%, #0A0A1A 100%); }
.inner-hero-title { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 900; color: var(--kkt-white); margin-bottom: 14px; }
.inner-hero-title em { font-style: normal; color: var(--kkt-orange); }
.inner-hero-desc { font-size: 1rem; color: var(--kkt-text2); max-width: 600px; margin: 0 auto 20px; line-height: 1.8; }
.inner-hero-tags { display: flex; justify-content: center; flex-wrap: wrap; gap: 8px; }
.itag { background: rgba(255,107,0,0.12); border: 1px solid rgba(255,107,0,0.3); color: var(--kkt-orange); padding: 4px 14px; border-radius: 50px; font-size: 0.8rem; }
.inner-hero-stats { display: flex; justify-content: center; gap: 40px; margin-top: 20px; flex-wrap: wrap; }
.istat { text-align: center; }
.istat strong { display: block; font-size: 1.6rem; font-weight: 800; color: var(--kkt-orange); }
.istat span { font-size: 0.8rem; color: var(--kkt-text2); }

/* ===== 改装服务 ===== */
.modify-services { display: flex; flex-direction: column; gap: 40px; }
.mod-service-card { display: grid; grid-template-columns: 1fr 1.5fr; gap: 32px; align-items: center; background: var(--kkt-white); border-radius: var(--kkt-radius-lg); overflow: hidden; box-shadow: var(--kkt-shadow); border: 1px solid var(--kkt-border); }
.mod-service-card:nth-child(even) { direction: rtl; }
.mod-service-card:nth-child(even) > * { direction: ltr; }
.mod-service-img img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4/3; }
.mod-service-info { padding: 32px; }
.mod-service-info h3 { font-size: 1.4rem; font-weight: 800; color: #1A1A2E; margin-bottom: 12px; }
.mod-service-info p { font-size: 0.9rem; color: #555566; line-height: 1.8; margin-bottom: 16px; }
.mod-list { display: flex; flex-direction: column; gap: 6px; margin-bottom: 20px; }
.mod-list li { font-size: 0.88rem; color: #444455; padding-left: 16px; position: relative; }
.mod-list li::before { content: '▸'; position: absolute; left: 0; color: var(--kkt-orange); }

/* ===== 关于我们 ===== */
.about-layout { display: grid; grid-template-columns: 1fr 1.2fr; gap: 50px; align-items: center; }
.about-img img { width: 100%; border-radius: var(--kkt-radius-lg); box-shadow: var(--kkt-shadow); }
.about-content h2 { font-size: 1.8rem; font-weight: 800; color: #1A1A2E; margin-bottom: 20px; }
.about-content h2 em { font-style: normal; color: var(--kkt-orange); }
.about-content p { font-size: 0.92rem; color: #555566; line-height: 1.8; margin-bottom: 16px; }
.about-stats { display: flex; gap: 28px; margin-top: 24px; flex-wrap: wrap; }
.astat { text-align: center; }
.astat strong { display: block; font-size: 1.6rem; font-weight: 800; color: var(--kkt-orange); }
.astat span { font-size: 0.78rem; color: #888899; }

/* ===== 社区话题 ===== */
.topics-list { display: flex; flex-direction: column; gap: 16px; }
.topic-item { display: flex; gap: 16px; align-items: flex-start; background: var(--kkt-white); border: 1.5px solid var(--kkt-border); border-radius: var(--kkt-radius); padding: 20px; transition: all var(--kkt-transition); }
.topic-item:hover { border-color: var(--kkt-orange); box-shadow: var(--kkt-shadow-hover); }
.topic-rank { font-size: 1.5rem; flex-shrink: 0; }
.topic-content { flex: 1; }
.topic-content h4 { font-size: 0.95rem; font-weight: 700; margin-bottom: 6px; }
.topic-content h4 a { color: #1A1A2E; }
.topic-content h4 a:hover { color: var(--kkt-orange); }
.topic-content p { font-size: 0.85rem; color: #666677; line-height: 1.6; margin-bottom: 10px; }
.topic-meta { display: flex; gap: 16px; font-size: 0.78rem; color: #888899; flex-wrap: wrap; }

/* ===== 加载更多 ===== */
.load-more-wrap { text-align: center; margin-top: 40px; }

/* ===== 搜索弹窗 ===== */
.search-modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%,-50%) scale(0.9);
  background: var(--kkt-white);
  border-radius: var(--kkt-radius-lg);
  width: 90%;
  max-width: 560px;
  max-height: 80vh;
  overflow-y: auto;
  z-index: 2000;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
  opacity: 0;
  pointer-events: none;
  transition: all var(--kkt-transition);
}
.search-modal.open {
  opacity: 1;
  pointer-events: all;
  transform: translate(-50%,-50%) scale(1);
}
.search-modal-mask {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 1999;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--kkt-transition);
}
.search-modal-mask.open { opacity: 1; pointer-events: all; }
.search-modal-header { display: flex; justify-content: space-between; align-items: center; padding: 16px 20px; border-bottom: 1px solid var(--kkt-border); font-weight: 700; }
.modal-close { font-size: 1.4rem; color: #888; cursor: pointer; }
.modal-close:hover { color: var(--kkt-orange); }
.search-modal-body { padding: 20px; }
.search-result-item { padding: 12px 0; border-bottom: 1px solid var(--kkt-border); }
.search-result-item:last-child { border-bottom: none; }
.search-result-item a { color: #1A1A2E; font-size: 0.92rem; font-weight: 600; }
.search-result-item a:hover { color: var(--kkt-orange); }
.search-result-item p { font-size: 0.82rem; color: #888899; margin-top: 4px; }

/* ===== 回到顶部 ===== */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 44px;
  height: 44px;
  background: var(--kkt-orange);
  color: #fff;
  border-radius: 50%;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(255,107,0,0.4);
  opacity: 0;
  pointer-events: none;
  transition: all var(--kkt-transition);
  z-index: 999;
}
.back-to-top.visible { opacity: 1; pointer-events: all; }
.back-to-top:hover { background: var(--kkt-orange-dark); transform: translateY(-3px); }

/* ===== 响应式设计 ===== */
@media (max-width: 1100px) {
  .experts-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .ai-layout { grid-template-columns: 1fr; gap: 40px; }
  .ai-stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .community-cats { grid-template-columns: repeat(2, 1fr); }
  .reviews-grid { grid-template-columns: repeat(2, 1fr); }
  .partners-wall { grid-template-columns: repeat(4, 1fr); }
  .ent-grid { grid-template-columns: 1fr; }
  .ent-card.ent-large { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .about-layout { grid-template-columns: 1fr; }
  .mod-service-card { grid-template-columns: 1fr; }
  .mod-service-card:nth-child(even) { direction: ltr; }
  .join-steps { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  :root { --header-h: 60px; }
  .kkt-section { padding: 50px 0; }
  .kkt-nav { display: none; position: absolute; top: 100%; left: 0; right: 0; background: var(--kkt-dark); padding: 16px 20px; border-top: 1px solid rgba(255,107,0,0.15); }
  .kkt-nav.open { display: block; }
  .nav-list { flex-direction: column; align-items: flex-start; gap: 4px; }
  .nav-toggle { display: flex; }
  .video-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 20px; }
  .experts-grid { grid-template-columns: 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
  .community-cats { grid-template-columns: repeat(2, 1fr); }
  .partners-wall { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom-inner { flex-direction: column; text-align: center; }
  .hero-content { padding: 60px 20px; }
  .search-hot-tags { display: none; }
  .ai-stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .community-cats { grid-template-columns: 1fr; }
  .hero-btns { flex-direction: column; }
  .hero-stats { justify-content: center; }
  .partners-wall { grid-template-columns: repeat(2, 1fr); }
  .share-btns { gap: 6px; }
  .share-btn { padding: 7px 14px; font-size: 0.8rem; }
  .ai-stats-grid { grid-template-columns: 1fr 1fr; }
}

/* ============================================================
   溏心vlog首页专用样式 (kkt- prefix)
   ============================================================ */

/* 容器 */
.kkt-container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* 头部 */
.kkt-header { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; background: rgba(10,10,26,0.97); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(255,107,0,0.15); }
.kkt-header-inner { max-width: 1200px; margin: 0 auto; padding: 0 20px; height: 68px; display: flex; align-items: center; gap: 20px; }
.kkt-logo-wrap { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.kkt-logo-link { display: flex; align-items: center; gap: 10px; }
.kkt-favicon { width: 32px; height: 32px; border-radius: 6px; }
.kkt-logo-img { height: 40px; width: auto; }
.kkt-nav-list { display: flex; align-items: center; gap: 4px; }
.kkt-nav-item a { display: block; padding: 8px 14px; color: var(--kkt-text2); font-size: 14px; font-weight: 500; border-radius: 6px; transition: var(--kkt-transition); white-space: nowrap; }
.kkt-nav-item a:hover, .kkt-nav-item.active a { color: var(--kkt-orange); background: rgba(255,107,0,0.1); }
.kkt-header-actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.kkt-btn-primary { display: inline-flex; align-items: center; padding: 9px 20px; background: var(--kkt-orange); color: #fff !important; border-radius: 8px; font-size: 14px; font-weight: 600; transition: var(--kkt-transition); white-space: nowrap; }
.kkt-btn-primary:hover { background: var(--kkt-orange-dark); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(255,107,0,0.4); }
.kkt-menu-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.kkt-menu-toggle span { display: block; width: 22px; height: 2px; background: var(--kkt-text); border-radius: 2px; transition: var(--kkt-transition); }

/* 移动端菜单 */
.kkt-mobile-menu { display: none; position: fixed; top: 68px; left: 0; right: 0; background: var(--kkt-dark2); z-index: 999; padding: 16px 20px; border-bottom: 1px solid rgba(255,107,0,0.2); }
.kkt-mobile-menu.open { display: block; }
.kkt-mobile-menu ul { display: flex; flex-direction: column; gap: 4px; }
.kkt-mobile-menu li a { display: block; padding: 12px 16px; color: var(--kkt-text2); font-size: 15px; border-radius: 8px; transition: var(--kkt-transition); }
.kkt-mobile-menu li a:hover { color: var(--kkt-orange); background: rgba(255,107,0,0.1); }

/* 面包屑 */
.kkt-breadcrumb { margin-top: 68px; background: var(--kkt-dark3); padding: 10px 0; font-size: 13px; color: var(--kkt-text3); }
.kkt-breadcrumb a { color: var(--kkt-text3); }
.kkt-breadcrumb a:hover { color: var(--kkt-orange); }
.kkt-bc-sep { margin: 0 8px; }

/* Hero */
.kkt-hero { position: relative; min-height: 600px; display: flex; align-items: center; overflow: hidden; background: var(--kkt-dark); }
.kkt-hero-bg { position: absolute; inset: 0; z-index: 0; }
.kkt-hero-img { width: 100%; height: 100%; object-fit: cover; opacity: 0.45; }
.kkt-hero-overlay { position: absolute; inset: 0; background: linear-gradient(135deg, rgba(10,10,26,0.88) 0%, rgba(10,10,26,0.6) 60%, rgba(255,107,0,0.12) 100%); }
.kkt-hero-content { position: relative; z-index: 1; padding: 80px 20px 60px; max-width: 760px; }
.kkt-hero-badge { display: inline-block; padding: 6px 16px; background: rgba(255,107,0,0.2); border: 1px solid rgba(255,107,0,0.4); border-radius: 20px; color: var(--kkt-orange-light); font-size: 13px; font-weight: 600; margin-bottom: 20px; }
.kkt-hero-title { font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 800; color: #fff; line-height: 1.2; margin-bottom: 16px; }
.kkt-brand { color: var(--kkt-orange); }
.kkt-hero-sub { display: block; font-size: clamp(1rem, 2.5vw, 1.4rem); font-weight: 400; color: var(--kkt-text2); margin-top: 8px; }
.kkt-hero-desc { font-size: 16px; color: var(--kkt-text2); margin-bottom: 28px; max-width: 600px; line-height: 1.8; }
.kkt-hero-desc strong { color: var(--kkt-orange-light); }
.kkt-hero-stats { display: flex; gap: 32px; margin-bottom: 32px; flex-wrap: wrap; }
.kkt-stat-item { text-align: center; }
.kkt-stat-item strong { display: block; font-size: 1.8rem; font-weight: 800; color: var(--kkt-orange); line-height: 1; }
.kkt-stat-item span { font-size: 12px; color: var(--kkt-text3); margin-top: 4px; display: block; }
.kkt-hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }
.kkt-btn-hero-primary { display: inline-flex; align-items: center; gap: 8px; padding: 14px 28px; background: var(--kkt-orange); color: #fff !important; border-radius: 10px; font-size: 16px; font-weight: 700; transition: var(--kkt-transition); }
.kkt-btn-hero-primary:hover { background: var(--kkt-orange-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(255,107,0,0.5); }
.kkt-btn-hero-secondary { display: inline-flex; align-items: center; padding: 14px 28px; background: rgba(255,255,255,0.1); color: #fff !important; border: 1px solid rgba(255,255,255,0.3); border-radius: 10px; font-size: 16px; font-weight: 600; transition: var(--kkt-transition); backdrop-filter: blur(8px); }
.kkt-btn-hero-secondary:hover { background: rgba(255,255,255,0.2); border-color: var(--kkt-orange); color: var(--kkt-orange) !important; }
.kkt-hero-scroll-hint { position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%); text-align: center; color: var(--kkt-text3); font-size: 12px; z-index: 1; }
.kkt-scroll-arrow { width: 20px; height: 20px; border-right: 2px solid var(--kkt-orange); border-bottom: 2px solid var(--kkt-orange); transform: rotate(45deg); margin: 6px auto 0; animation: kkt-bounce 1.5s infinite; }
@keyframes kkt-bounce { 0%, 100% { transform: rotate(45deg) translateY(0); } 50% { transform: rotate(45deg) translateY(6px); } }

/* Section通用 */
.kkt-section { padding: 80px 0; }
.kkt-section-header { text-align: center; margin-bottom: 48px; }
.kkt-section-tag { display: inline-block; padding: 4px 14px; background: rgba(255,107,0,0.1); color: var(--kkt-orange); border-radius: 20px; font-size: 12px; font-weight: 700; letter-spacing: 2px; margin-bottom: 12px; }
.kkt-section-title { font-size: clamp(1.5rem, 3vw, 2.2rem); font-weight: 800; color: var(--kkt-dark); margin-bottom: 12px; }
.kkt-section-desc { font-size: 15px; color: #666677; max-width: 600px; margin: 0 auto; }
.kkt-section-desc strong { color: var(--kkt-orange); }
.kkt-section-more { text-align: center; margin-top: 40px; }
.kkt-btn-more { display: inline-block; padding: 12px 32px; border: 2px solid var(--kkt-orange); color: var(--kkt-orange); border-radius: 8px; font-size: 15px; font-weight: 600; transition: var(--kkt-transition); }
.kkt-btn-more:hover { background: var(--kkt-orange); color: #fff !important; }

/* 视频区 */
.kkt-video-section { background: #F5F5F8; }
.kkt-video-tabs { display: flex; gap: 8px; margin-bottom: 32px; flex-wrap: wrap; justify-content: center; }
.kkt-tab-btn { padding: 8px 20px; border: 1px solid #E0E0EC; border-radius: 24px; font-size: 14px; font-weight: 500; color: #666677; background: #fff; transition: var(--kkt-transition); }
.kkt-tab-btn:hover, .kkt-tab-btn.active { background: var(--kkt-orange); border-color: var(--kkt-orange); color: #fff; }
.kkt-video-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.kkt-video-card { background: #fff; border-radius: 12px; overflow: hidden; box-shadow: 0 4px 20px rgba(10,10,26,0.12); transition: var(--kkt-transition); }
.kkt-video-card:hover { transform: translateY(-4px); box-shadow: 0 8px 32px rgba(255,107,0,0.18); }
.kkt-video-thumb-wrap { position: relative; aspect-ratio: 16/9; overflow: hidden; background: var(--kkt-dark); }
.kkt-video-thumb { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.kkt-video-card:hover .kkt-video-thumb { transform: scale(1.05); }
.kkt-video-play-overlay { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; background: rgba(0,0,0,0); transition: var(--kkt-transition); opacity: 0; }
.kkt-video-card:hover .kkt-video-play-overlay { opacity: 1; background: rgba(0,0,0,0.3); }
.kkt-play-btn { width: 60px; height: 60px; transition: transform 0.2s ease; }
.kkt-play-btn:hover { transform: scale(1.1); }
.kkt-play-btn svg { width: 60px; height: 60px; }
.kkt-video-duration { position: absolute; bottom: 8px; right: 8px; background: rgba(0,0,0,0.75); color: #fff; font-size: 12px; font-weight: 600; padding: 2px 8px; border-radius: 4px; }
.kkt-video-badge { position: absolute; top: 8px; left: 8px; background: var(--kkt-orange); color: #fff; font-size: 11px; font-weight: 700; padding: 3px 10px; border-radius: 4px; }
.kkt-video-badge.review { background: #4A90E2; }
.kkt-video-badge.sport { background: #E24A4A; }
.kkt-video-badge.offroad { background: #4AE24A; color: #1A1A1A; }
.kkt-video-badge.travel { background: #9B4AE2; }
.kkt-video-info { padding: 16px; }
.kkt-video-title { font-size: 15px; font-weight: 700; color: var(--kkt-dark); margin-bottom: 8px; line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.kkt-video-meta { font-size: 12px; color: #999aaa; margin-bottom: 8px; }
.kkt-video-meta span { margin-right: 8px; }
.kkt-video-desc { font-size: 13px; color: #666677; line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* 汽车传媒 */
.kkt-media-section { background: var(--kkt-dark3); }
.kkt-media-section .kkt-section-title { color: #fff; }
.kkt-media-section .kkt-section-desc { color: var(--kkt-text3); }
.kkt-media-section .kkt-section-desc strong { color: var(--kkt-orange-light); }
.kkt-media-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.kkt-media-card { background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.08); border-radius: 12px; padding: 28px 24px; transition: var(--kkt-transition); }
.kkt-media-card:hover { background: rgba(255,107,0,0.08); border-color: rgba(255,107,0,0.3); transform: translateY(-3px); }
.kkt-media-icon { font-size: 2rem; margin-bottom: 14px; }
.kkt-media-card h3 { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 10px; }
.kkt-media-card p { font-size: 14px; color: var(--kkt-text3); line-height: 1.7; margin-bottom: 14px; }
.kkt-media-card p strong { color: var(--kkt-orange-light); }
.kkt-media-link { font-size: 13px; color: var(--kkt-orange); font-weight: 600; }

/* 改装服务 */
.kkt-modify-section { background: #fff; }
.kkt-modify-showcase { display: grid; grid-template-columns: 1fr 280px; gap: 32px; align-items: start; }
.kkt-modify-main { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: center; }
.kkt-modify-main-img { border-radius: 12px; width: 100%; aspect-ratio: 4/3; object-fit: cover; box-shadow: 0 4px 20px rgba(10,10,26,0.12); }
.kkt-modify-main-info h3 { font-size: 1.4rem; font-weight: 800; color: var(--kkt-dark); margin-bottom: 12px; }
.kkt-modify-main-info p { font-size: 14px; color: #666677; line-height: 1.8; margin-bottom: 16px; }
.kkt-modify-main-info p strong { color: var(--kkt-orange); }
.kkt-modify-features { margin-bottom: 20px; }
.kkt-modify-features li { font-size: 14px; color: #555566; padding: 5px 0; border-bottom: 1px solid #E0E0EC; }
.kkt-modify-features li:last-child { border-bottom: none; }
.kkt-modify-stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.kkt-modify-stat { background: #F5F5F8; border-radius: 12px; padding: 24px 16px; text-align: center; border: 1px solid #E0E0EC; transition: var(--kkt-transition); }
.kkt-modify-stat:hover { border-color: var(--kkt-orange); background: rgba(255,107,0,0.04); }
.kkt-modify-stat-num { font-size: 2rem; font-weight: 800; color: var(--kkt-orange); line-height: 1; margin-bottom: 6px; }
.kkt-modify-stat-label { font-size: 13px; color: #888899; }

/* 娱乐专区 */
.kkt-entertainment-section { background: #F5F5F8; }
.kkt-ent-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; }
.kkt-ent-card { background: #fff; border-radius: 12px; overflow: hidden; box-shadow: 0 4px 20px rgba(10,10,26,0.12); transition: var(--kkt-transition); }
.kkt-ent-card:hover { transform: translateY(-4px); box-shadow: 0 8px 32px rgba(255,107,0,0.18); }
.kkt-ent-large { grid-column: 1 / 2; grid-row: 1 / 3; }
.kkt-ent-thumb-wrap { position: relative; overflow: hidden; background: var(--kkt-dark); }
.kkt-ent-large .kkt-ent-thumb-wrap { aspect-ratio: 4/5; }
.kkt-ent-card:not(.kkt-ent-large) .kkt-ent-thumb-wrap { aspect-ratio: 16/9; }
.kkt-ent-thumb { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.kkt-ent-card:hover .kkt-ent-thumb { transform: scale(1.05); }
.kkt-ent-play-overlay { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; background: rgba(0,0,0,0); opacity: 0; transition: var(--kkt-transition); }
.kkt-ent-card:hover .kkt-ent-play-overlay { opacity: 1; background: rgba(0,0,0,0.3); }
.kkt-ent-label { position: absolute; top: 10px; left: 10px; background: rgba(0,0,0,0.7); color: #fff; font-size: 12px; font-weight: 600; padding: 4px 10px; border-radius: 4px; }
.kkt-ent-info { padding: 16px; }
.kkt-ent-info h3 { font-size: 15px; font-weight: 700; color: var(--kkt-dark); margin-bottom: 8px; line-height: 1.4; }
.kkt-ent-info p { font-size: 13px; color: #666677; line-height: 1.6; margin-bottom: 10px; }
.kkt-ent-link { font-size: 13px; color: var(--kkt-orange); font-weight: 600; }

/* AI赋能 */
.kkt-ai-section { background: linear-gradient(135deg, var(--kkt-dark) 0%, var(--kkt-dark3) 100%); }
.kkt-ai-section .kkt-section-title { color: #fff; }
.kkt-ai-section .kkt-section-desc { color: var(--kkt-text3); }
.kkt-ai-grid { display: grid; grid-template-columns: 1fr 360px; gap: 32px; align-items: start; }
.kkt-ai-card { background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); border-radius: 20px; overflow: hidden; transition: var(--kkt-transition); }
.kkt-ai-card:hover { border-color: rgba(255,107,0,0.4); box-shadow: 0 8px 32px rgba(255,107,0,0.15); }
.kkt-ai-img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.kkt-ai-content { padding: 28px; }
.kkt-ai-tag { display: inline-block; padding: 4px 12px; background: rgba(255,107,0,0.2); color: var(--kkt-orange-light); border-radius: 4px; font-size: 11px; font-weight: 700; letter-spacing: 1px; margin-bottom: 12px; }
.kkt-ai-content h3 { font-size: 1.3rem; font-weight: 800; color: #fff; margin-bottom: 12px; }
.kkt-ai-content p { font-size: 14px; color: var(--kkt-text3); line-height: 1.8; margin-bottom: 16px; }
.kkt-ai-content p strong { color: var(--kkt-orange-light); }
.kkt-ai-features { margin-bottom: 24px; }
.kkt-ai-features li { font-size: 14px; color: var(--kkt-text2); padding: 6px 0; border-bottom: 1px solid rgba(255,255,255,0.06); }
.kkt-ai-features li:last-child { border-bottom: none; }
.kkt-ai-side { display: flex; flex-direction: column; gap: 16px; }
.kkt-ai-mini-card { background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.08); border-radius: 12px; padding: 20px; transition: var(--kkt-transition); }
.kkt-ai-mini-card:hover { background: rgba(255,107,0,0.08); border-color: rgba(255,107,0,0.3); }
.kkt-ai-mini-icon { font-size: 1.8rem; margin-bottom: 10px; }
.kkt-ai-mini-card h4 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.kkt-ai-mini-card p { font-size: 13px; color: var(--kkt-text3); line-height: 1.6; margin-bottom: 10px; }
.kkt-ai-mini-card p strong { color: var(--kkt-orange-light); }
.kkt-ai-mini-link { font-size: 13px; color: var(--kkt-orange); font-weight: 600; }

/* 社区 */
.kkt-community-section { background: #fff; }
.kkt-community-layout { display: grid; grid-template-columns: 1fr 380px; gap: 32px; align-items: start; }
.kkt-community-main { position: relative; border-radius: 20px; overflow: hidden; }
.kkt-community-img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.kkt-community-overlay { position: absolute; bottom: 0; left: 0; right: 0; background: linear-gradient(to top, rgba(10,10,26,0.95) 0%, transparent 100%); padding: 40px 28px 28px; }
.kkt-community-overlay h3 { font-size: 1.4rem; font-weight: 800; color: #fff; margin-bottom: 8px; }
.kkt-community-overlay p { font-size: 14px; color: var(--kkt-text2); margin-bottom: 16px; line-height: 1.6; }
.kkt-community-overlay p strong { color: var(--kkt-orange-light); }
.kkt-community-topics-title { font-size: 1.1rem; font-weight: 700; color: var(--kkt-dark); margin-bottom: 16px; }
.kkt-topic-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 24px; }
.kkt-topic-item { display: flex; align-items: center; gap: 12px; padding: 10px 14px; background: #F5F5F8; border-radius: 8px; border: 1px solid #E0E0EC; transition: var(--kkt-transition); }
.kkt-topic-item:hover { border-color: var(--kkt-orange); background: rgba(255,107,0,0.04); }
.kkt-topic-icon { font-size: 1.2rem; }
.kkt-topic-name { flex: 1; font-size: 14px; font-weight: 500; color: var(--kkt-dark); }
.kkt-topic-count { font-size: 12px; color: var(--kkt-text3); }

/* 专家团队 */
.kkt-team-section { background: #F5F5F8; }
.kkt-team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.kkt-team-card { background: #fff; border-radius: 12px; overflow: hidden; box-shadow: 0 4px 20px rgba(10,10,26,0.12); transition: var(--kkt-transition); }
.kkt-team-card:hover { transform: translateY(-4px); box-shadow: 0 8px 32px rgba(255,107,0,0.18); }
.kkt-team-avatar { position: relative; aspect-ratio: 4/3; overflow: hidden; }
.kkt-team-avatar img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.kkt-team-card:hover .kkt-team-avatar img { transform: scale(1.05); }
.kkt-team-badge { position: absolute; bottom: 8px; right: 8px; background: var(--kkt-orange); color: #fff; font-size: 11px; font-weight: 700; padding: 3px 10px; border-radius: 4px; }
.kkt-team-info { padding: 16px; }
.kkt-team-name { font-size: 1rem; font-weight: 800; color: var(--kkt-dark); margin-bottom: 4px; }
.kkt-team-title { font-size: 12px; color: var(--kkt-orange); font-weight: 600; margin-bottom: 8px; }
.kkt-team-desc { font-size: 13px; color: #666677; line-height: 1.6; margin-bottom: 12px; }
.kkt-team-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.kkt-team-tags span { padding: 3px 8px; background: #F5F5F8; border: 1px solid #E0E0EC; border-radius: 4px; font-size: 11px; color: #666677; }

/* 用户评价 */
.kkt-reviews-section { background: #fff; }
.kkt-reviews-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.kkt-review-card { background: #F5F5F8; border-radius: 12px; padding: 28px; border: 1px solid #E0E0EC; transition: var(--kkt-transition); }
.kkt-review-card:hover { border-color: var(--kkt-orange); box-shadow: 0 8px 32px rgba(255,107,0,0.18); transform: translateY(-2px); }
.kkt-review-stars { color: #FFB800; font-size: 1rem; margin-bottom: 12px; letter-spacing: 2px; }
.kkt-review-text { font-size: 14px; color: #444455; line-height: 1.8; margin-bottom: 20px; font-style: italic; }
.kkt-review-author { display: flex; align-items: center; gap: 12px; }
.kkt-review-avatar { width: 40px; height: 40px; background: var(--kkt-orange); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 16px; flex-shrink: 0; }
.kkt-review-author strong { display: block; font-size: 14px; color: var(--kkt-dark); }
.kkt-review-author span { font-size: 12px; color: #999aaa; }

/* FAQ */
.kkt-faq-section { background: #F5F5F8; }
.kkt-faq-list { max-width: 800px; margin: 0 auto; }
.kkt-faq-item { background: #fff; border-radius: 12px; margin-bottom: 12px; border: 1px solid #E0E0EC; overflow: hidden; transition: var(--kkt-transition); }
.kkt-faq-item:hover { border-color: var(--kkt-orange); }
.kkt-faq-q { padding: 18px 24px; font-size: 15px; font-weight: 700; color: var(--kkt-dark); cursor: pointer; position: relative; padding-right: 48px; }
.kkt-faq-q::after { content: '+'; position: absolute; right: 20px; top: 50%; transform: translateY(-50%); font-size: 1.4rem; color: var(--kkt-orange); font-weight: 300; transition: var(--kkt-transition); }
.kkt-faq-item.open .kkt-faq-q::after { content: '−'; }
.kkt-faq-a { padding: 0 24px; max-height: 0; overflow: hidden; transition: max-height 0.3s ease, padding 0.3s ease; }
.kkt-faq-item.open .kkt-faq-a { max-height: 300px; padding: 0 24px 18px; }
.kkt-faq-a div { font-size: 14px; color: #666677; line-height: 1.8; border-top: 1px solid #E0E0EC; padding-top: 14px; }

/* 最新资讯 */
.kkt-news-section { background: #fff; }
.kkt-news-grid { display: grid; grid-template-columns: 1fr 380px; gap: 32px; align-items: start; }
.kkt-news-card { background: #F5F5F8; border-radius: 12px; overflow: hidden; box-shadow: 0 4px 20px rgba(10,10,26,0.12); transition: var(--kkt-transition); }
.kkt-news-card:hover { transform: translateY(-3px); box-shadow: 0 8px 32px rgba(255,107,0,0.18); }
.kkt-news-thumb { position: relative; aspect-ratio: 16/9; overflow: hidden; }
.kkt-news-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.kkt-news-card:hover .kkt-news-thumb img { transform: scale(1.04); }
.kkt-news-category { position: absolute; top: 10px; left: 10px; background: var(--kkt-orange); color: #fff; font-size: 11px; font-weight: 700; padding: 3px 10px; border-radius: 4px; }
.kkt-news-content { padding: 20px; }
.kkt-news-date { font-size: 12px; color: #999aaa; margin-bottom: 8px; }
.kkt-news-content h3 { font-size: 1rem; font-weight: 700; color: var(--kkt-dark); margin-bottom: 10px; line-height: 1.5; }
.kkt-news-content h3 a { color: var(--kkt-dark); }
.kkt-news-content h3 a:hover { color: var(--kkt-orange); }
.kkt-news-content p { font-size: 13px; color: #666677; line-height: 1.7; margin-bottom: 12px; }
.kkt-news-link { font-size: 13px; color: var(--kkt-orange); font-weight: 600; }
.kkt-news-list { display: flex; flex-direction: column; gap: 16px; }
.kkt-news-mini { padding: 16px; background: #F5F5F8; border-radius: 8px; border: 1px solid #E0E0EC; transition: var(--kkt-transition); }
.kkt-news-mini:hover { border-color: var(--kkt-orange); }
.kkt-news-mini-date { font-size: 11px; color: #999aaa; margin-bottom: 6px; }
.kkt-news-mini h4 { font-size: 14px; font-weight: 700; color: var(--kkt-dark); margin-bottom: 6px; line-height: 1.4; }
.kkt-news-mini h4 a { color: var(--kkt-dark); }
.kkt-news-mini h4 a:hover { color: var(--kkt-orange); }
.kkt-news-mini p { font-size: 12px; color: #888899; line-height: 1.6; }

/* CTA */
.kkt-cta-section { background: linear-gradient(135deg, var(--kkt-orange-dark) 0%, var(--kkt-orange) 50%, #FF9A3C 100%); padding: 80px 0; text-align: center; }
.kkt-cta-content h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); font-weight: 800; color: #fff; margin-bottom: 12px; }
.kkt-cta-content h2 .kkt-brand { color: var(--kkt-dark); }
.kkt-cta-content p { font-size: 16px; color: rgba(255,255,255,0.85); margin-bottom: 32px; max-width: 560px; margin-left: auto; margin-right: auto; }
.kkt-cta-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.kkt-btn-cta-primary { display: inline-flex; align-items: center; gap: 8px; padding: 14px 32px; background: var(--kkt-dark); color: #fff !important; border-radius: 10px; font-size: 16px; font-weight: 700; transition: var(--kkt-transition); }
.kkt-btn-cta-primary:hover { background: var(--kkt-dark2); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.3); }
.kkt-btn-cta-secondary { display: inline-flex; align-items: center; padding: 14px 32px; background: rgba(255,255,255,0.2); color: #fff !important; border: 2px solid rgba(255,255,255,0.6); border-radius: 10px; font-size: 16px; font-weight: 600; transition: var(--kkt-transition); }
.kkt-btn-cta-secondary:hover { background: rgba(255,255,255,0.3); transform: translateY(-2px); }

/* 页脚 */
.kkt-footer { background: var(--kkt-dark); }
.kkt-footer-top { padding: 60px 0 40px; }
.kkt-footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
.kkt-footer-logo { height: 36px; width: auto; margin-bottom: 16px; }
.kkt-footer-logo-link { display: inline-block; }
.kkt-footer-brand-desc { font-size: 13px; color: var(--kkt-text3); line-height: 1.8; margin-bottom: 16px; }
.kkt-footer-brand-desc strong { color: var(--kkt-orange-light); }
.kkt-footer-contact p { font-size: 13px; color: var(--kkt-text3); margin-bottom: 6px; }
.kkt-footer-nav-col h4 { font-size: 14px; font-weight: 700; color: #fff; margin-bottom: 16px; padding-bottom: 8px; border-bottom: 1px solid rgba(255,255,255,0.1); }
.kkt-footer-nav-col ul { display: flex; flex-direction: column; gap: 8px; }
.kkt-footer-nav-col li a { font-size: 13px; color: var(--kkt-text3); transition: var(--kkt-transition); }
.kkt-footer-nav-col li a:hover { color: var(--kkt-orange); padding-left: 4px; }
.kkt-footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding: 20px 0; }
.kkt-footer-bottom-inner { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; flex-wrap: wrap; gap: 8px; }
.kkt-footer-copyright { font-size: 13px; color: var(--kkt-text3); }
.kkt-footer-copyright strong { color: var(--kkt-orange-light); }
.kkt-footer-update { font-size: 12px; color: var(--kkt-text3); }
.kkt-footer-links { display: flex; gap: 16px; flex-wrap: wrap; }
.kkt-footer-links a { font-size: 12px; color: var(--kkt-text3); transition: var(--kkt-transition); }
.kkt-footer-links a:hover { color: var(--kkt-orange); }

/* 响应式 */
@media (max-width: 1024px) {
  .kkt-video-grid { grid-template-columns: repeat(2, 1fr); }
  .kkt-media-grid { grid-template-columns: repeat(2, 1fr); }
  .kkt-team-grid { grid-template-columns: repeat(2, 1fr); }
  .kkt-modify-showcase { grid-template-columns: 1fr; }
  .kkt-modify-main { grid-template-columns: 1fr; }
  .kkt-ai-grid { grid-template-columns: 1fr; }
  .kkt-community-layout { grid-template-columns: 1fr; }
  .kkt-news-grid { grid-template-columns: 1fr; }
  .kkt-footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .kkt-nav { display: none; }
  .kkt-menu-toggle { display: flex; }
  .kkt-btn-primary { display: none; }
  .kkt-video-grid { grid-template-columns: 1fr; }
  .kkt-media-grid { grid-template-columns: 1fr; }
  .kkt-team-grid { grid-template-columns: repeat(2, 1fr); }
  .kkt-reviews-grid { grid-template-columns: 1fr; }
  .kkt-ent-grid { grid-template-columns: 1fr; }
  .kkt-ent-large { grid-column: auto; grid-row: auto; }
  .kkt-footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .kkt-hero-btns { flex-direction: column; }
  .kkt-modify-stats-grid { grid-template-columns: repeat(2, 1fr); }
  .kkt-footer-bottom-inner { flex-direction: column; align-items: flex-start; }
  .kkt-section { padding: 60px 0; }
  .kkt-breadcrumb { margin-top: 68px; }
}
@media (max-width: 480px) {
  .kkt-team-grid { grid-template-columns: 1fr; }
  .kkt-footer-links { gap: 10px; }
  .kkt-hero-stats { gap: 16px; }
}