/* ============================================
   麻豆 - 汽车改装视频社区 主样式
   hqcmdLpw.cn
   ============================================ */

:root {
  --primary: #0d1b3e;
  --accent: #f56a00;
  --accent2: #1a3a6e;
  --light: #f5f7fa;
  --white: #ffffff;
  --gray: #8a8fa8;
  --dark-gray: #2c2f3a;
  --card-bg: #111827;
  --border: rgba(255,255,255,0.08);
  --shadow: 0 4px 24px rgba(0,0,0,0.35);
  --radius: 12px;
  --font-main: 'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-main);
  background: #0a0e1a;
  color: #d0d6e8;
  line-height: 1.7;
  overflow-x: hidden;
}

a { color: var(--accent); text-decoration: none; transition: color .25s; }
a:hover { color: #ff8c3a; }

img { max-width: 100%; height: auto; display: block; }

ul { list-style: none; }

/* ---- SCROLLBAR ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #0a0e1a; }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 3px; }

/* ============================================
   TOPBAR
   ============================================ */
.topbar {
  background: rgba(13,27,62,0.95);
  border-bottom: 1px solid rgba(245,106,0,0.3);
  padding: 6px 0;
  font-size: 13px;
  color: var(--gray);
}
.topbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.topbar a { color: var(--gray); }
.topbar a:hover { color: var(--accent); }

/* ============================================
   HEADER / NAV
   ============================================ */
.site-header {
  background: var(--primary);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 20px rgba(0,0,0,0.5);
  border-bottom: 2px solid var(--accent);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  gap: 24px;
}

.logo-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.logo-wrap img.site-logo {
  height: 52px;
  width: auto;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-text .brand-name {
  font-size: 22px;
  font-weight: 800;
  color: var(--white);
  letter-spacing: 2px;
  line-height: 1.2;
}

.logo-text .brand-sub {
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* NAV */
.main-nav { display: flex; align-items: center; gap: 4px; }

.main-nav a {
  color: #c0c8e0;
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  transition: all .25s;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--accent);
  background: rgba(245,106,0,0.12);
}

/* SEARCH BAR */
.search-wrap {
  background: var(--primary);
  border-top: 1px solid rgba(245,106,0,0.15);
  padding: 10px 0;
}

.search-form {
  display: flex;
  max-width: 680px;
  margin: 0 auto;
  gap: 0;
  border-radius: 30px;
  overflow: hidden;
  border: 1.5px solid rgba(245,106,0,0.4);
  background: rgba(255,255,255,0.04);
}

.search-form input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  padding: 10px 20px;
  color: #d0d6e8;
  font-size: 14px;
  font-family: var(--font-main);
}

.search-form input::placeholder { color: #5a6080; }

.search-form button {
  background: var(--accent);
  border: none;
  padding: 10px 24px;
  color: white;
  font-size: 14px;
  cursor: pointer;
  font-family: var(--font-main);
  font-weight: 600;
  transition: background .25s;
}

.search-form button:hover { background: #d95e00; }

/* HAMBURGER */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-direction: column;
  gap: 5px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all .3s;
}

/* ============================================
   CONTAINER
   ============================================ */
.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  position: relative;
  min-height: 580px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: #050810;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../images/hero-banner.jpg');
  background-size: cover;
  background-position: center;
  filter: brightness(0.45);
  transform: scale(1.02);
  transition: transform 8s ease;
}

.hero:hover .hero-bg { transform: scale(1.06); }

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(13,27,62,0.92) 0%, rgba(13,27,62,0.5) 55%, transparent 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 600px;
  padding: 80px 0;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(245,106,0,0.15);
  border: 1px solid rgba(245,106,0,0.4);
  color: var(--accent);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 20px;
  letter-spacing: 1px;
}

.hero h1 {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 900;
  color: var(--white);
  line-height: 1.15;
  margin-bottom: 20px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.5);
}

.hero h1 em {
  color: var(--accent);
  font-style: normal;
}

.hero p {
  font-size: 16px;
  color: #b0bcd8;
  margin-bottom: 32px;
  line-height: 1.8;
}

.hero-btns {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  border: none;
  transition: all .25s;
  font-family: var(--font-main);
}

.btn-primary {
  background: var(--accent);
  color: white;
  box-shadow: 0 4px 20px rgba(245,106,0,0.4);
}
.btn-primary:hover {
  background: #d95e00;
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(245,106,0,0.5);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.4);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(245,106,0,0.08);
}

/* HERO STATS */
.hero-stats {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 2;
  background: rgba(13,27,62,0.85);
  backdrop-filter: blur(8px);
  border-top: 1px solid rgba(245,106,0,0.2);
}

.hero-stats .container {
  display: flex;
  justify-content: center;
  gap: 0;
}

.stat-item {
  flex: 1;
  max-width: 200px;
  text-align: center;
  padding: 18px 20px;
  border-right: 1px solid rgba(255,255,255,0.06);
}
.stat-item:last-child { border-right: none; }

.stat-num {
  font-size: 28px;
  font-weight: 900;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 12px;
  color: var(--gray);
  letter-spacing: 0.5px;
}

/* ============================================
   SECTION COMMON
   ============================================ */
.section { padding: 72px 0; }
.section-alt { background: rgba(255,255,255,0.02); }

.section-header {
  text-align: center;
  margin-bottom: 52px;
}

.section-tag {
  display: inline-block;
  background: rgba(245,106,0,0.12);
  color: var(--accent);
  border: 1px solid rgba(245,106,0,0.3);
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(24px, 3.5vw, 38px);
  font-weight: 800;
  color: var(--white);
  line-height: 1.25;
  margin-bottom: 14px;
}

.section-title em {
  color: var(--accent);
  font-style: normal;
}

.section-desc {
  font-size: 15px;
  color: var(--gray);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ============================================
   VIDEO CARDS
   ============================================ */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.video-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: transform .3s, box-shadow .3s;
  cursor: pointer;
}

.video-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(245,106,0,0.2);
  border-color: rgba(245,106,0,0.3);
}

.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: #1a1f2e;
}

.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s;
}

.video-card:hover .video-thumb img { transform: scale(1.06); }

.play-btn {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  background: rgba(0,0,0,0.45);
  transition: opacity .3s;
}

.video-card:hover .play-btn { opacity: 1; }

.play-btn svg {
  width: 56px;
  height: 56px;
  fill: white;
  filter: drop-shadow(0 2px 8px rgba(0,0,0,0.6));
  transform: scale(0.85);
  transition: transform .3s;
}

.video-card:hover .play-btn svg { transform: scale(1); }

.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.75);
  color: white;
  font-size: 12px;
  padding: 2px 7px;
  border-radius: 4px;
  font-weight: 600;
}

.video-info { padding: 16px; }

.video-tag {
  display: inline-block;
  background: rgba(245,106,0,0.15);
  color: var(--accent);
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 4px;
  margin-bottom: 8px;
  font-weight: 600;
}

.video-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
  line-height: 1.4;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.video-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--gray);
}

.video-meta span { display: flex; align-items: center; gap: 4px; }

/* ============================================
   CATEGORY TABS
   ============================================ */
.cat-tabs {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.cat-tab {
  padding: 8px 20px;
  border-radius: 24px;
  border: 1.5px solid rgba(255,255,255,0.1);
  background: transparent;
  color: var(--gray);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all .25s;
  font-family: var(--font-main);
}

.cat-tab:hover,
.cat-tab.active {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

/* ============================================
   FEATURE CARDS (AI / Media)
   ============================================ */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 28px;
}

.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: all .3s;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), #ff8c3a);
  opacity: 0;
  transition: opacity .3s;
}

.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.feature-card:hover::before { opacity: 1; }

.feature-icon {
  width: 56px;
  height: 56px;
  background: rgba(245,106,0,0.12);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 26px;
}

.feature-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 10px;
}

.feature-desc {
  font-size: 14px;
  color: var(--gray);
  line-height: 1.7;
}

/* ============================================
   EXPERT CARDS
   ============================================ */
.expert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 28px;
}

.expert-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  text-align: center;
  transition: all .3s;
}

.expert-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }

.expert-photo {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  object-position: top;
}

.expert-body { padding: 20px; }

.expert-name {
  font-size: 18px;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 4px;
}

.expert-role {
  font-size: 13px;
  color: var(--accent);
  margin-bottom: 12px;
  font-weight: 600;
}

.expert-desc {
  font-size: 13px;
  color: var(--gray);
  line-height: 1.6;
  margin-bottom: 16px;
}

.expert-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
  margin-bottom: 16px;
}

.expert-tag {
  background: rgba(26,58,110,0.5);
  color: #8ab4f8;
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 12px;
}

.expert-btns {
  display: flex;
  gap: 10px;
  justify-content: center;
}

.btn-sm {
  padding: 7px 16px;
  font-size: 13px;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  font-family: var(--font-main);
  transition: all .25s;
}

.btn-sm-primary { background: var(--accent); color: white; }
.btn-sm-primary:hover { background: #d95e00; color: white; }
.btn-sm-outline { background: transparent; color: #8ab4f8; border: 1.5px solid #8ab4f8; }
.btn-sm-outline:hover { background: #8ab4f8; color: var(--primary); }

/* ============================================
   PARTNER LOGOS
   ============================================ */
.partner-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
  align-items: center;
}

.partner-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 28px;
  font-size: 15px;
  font-weight: 700;
  color: var(--gray);
  transition: all .25s;
  min-width: 120px;
  text-align: center;
}

.partner-item:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(245,106,0,0.06);
}

/* ============================================
   REVIEWS
   ============================================ */
.review-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.review-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: all .3s;
}

.review-card:hover { border-color: rgba(245,106,0,0.3); transform: translateY(-3px); }

.review-stars {
  color: #f5c518;
  font-size: 16px;
  margin-bottom: 12px;
  letter-spacing: 2px;
}

.review-text {
  font-size: 14px;
  color: #b0bcd8;
  line-height: 1.7;
  margin-bottom: 16px;
  font-style: italic;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.review-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 800;
  color: white;
  flex-shrink: 0;
}

.review-name { font-size: 14px; font-weight: 700; color: var(--white); }
.review-date { font-size: 12px; color: var(--gray); }

/* ============================================
   FAQ
   ============================================ */
.faq-list { max-width: 800px; margin: 0 auto; }

.faq-item {
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 12px;
  overflow: hidden;
  background: var(--card-bg);
}

.faq-q {
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  padding: 18px 24px;
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-family: var(--font-main);
  transition: color .25s;
}

.faq-q:hover { color: var(--accent); }

.faq-q .faq-icon {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(245,106,0,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--accent);
  flex-shrink: 0;
  transition: transform .3s;
}

.faq-item.open .faq-icon { transform: rotate(45deg); }

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease, padding .3s;
  padding: 0 24px;
  font-size: 14px;
  color: var(--gray);
  line-height: 1.8;
}

.faq-item.open .faq-a {
  max-height: 300px;
  padding: 0 24px 18px;
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.contact-info-block {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}

.contact-info-block h3 {
  font-size: 20px;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.contact-row {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 16px;
  font-size: 14px;
  color: #b0bcd8;
}

.contact-icon {
  font-size: 18px;
  flex-shrink: 0;
  margin-top: 2px;
}

.contact-row strong { color: var(--white); display: block; margin-bottom: 2px; }

.qr-row {
  display: flex;
  gap: 20px;
  margin-top: 24px;
}

.qr-item { text-align: center; }
.qr-item img { width: 100px; height: 100px; border-radius: 8px; margin-bottom: 6px; }
.qr-item p { font-size: 12px; color: var(--gray); }

/* ============================================
   SHARE BAR
   ============================================ */
.share-bar {
  background: rgba(26,58,110,0.2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
}

.share-bar .container {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.share-label { font-size: 14px; color: var(--gray); font-weight: 600; }

.share-btns { display: flex; gap: 10px; flex-wrap: wrap; }

.share-btn {
  padding: 7px 18px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  font-family: var(--font-main);
  transition: all .25s;
  display: flex;
  align-items: center;
  gap: 6px;
}

.share-wechat { background: #07c160; color: white; }
.share-weibo { background: #e6162d; color: white; }
.share-douyin { background: #010101; color: white; border: 1px solid #333; }
.share-bilibili { background: #00a1d6; color: white; }

.share-btn:hover { opacity: 0.85; transform: scale(1.04); }

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  background: #050810;
  border-top: 2px solid rgba(245,106,0,0.2);
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand .logo-wrap { margin-bottom: 16px; }

.footer-brand p {
  font-size: 13px;
  color: var(--gray);
  line-height: 1.8;
  margin-bottom: 20px;
}

.footer-social {
  display: flex;
  gap: 10px;
}

.social-btn {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--gray);
  transition: all .25s;
  cursor: pointer;
}

.social-btn:hover { background: var(--accent); border-color: var(--accent); color: white; }

.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 18px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { font-size: 13px; color: var(--gray); transition: color .25s; }
.footer-col ul li a:hover { color: var(--accent); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--gray);
}

.footer-bottom a { color: var(--gray); }
.footer-bottom a:hover { color: var(--accent); }

/* ============================================
   BREADCRUMB
   ============================================ */
.breadcrumb {
  background: rgba(255,255,255,0.02);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
  font-size: 13px;
  color: var(--gray);
}

.breadcrumb ol {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.breadcrumb li + li::before { content: '/'; margin-right: 8px; color: #3a4060; }
.breadcrumb a { color: var(--gray); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .current { color: var(--accent); }

/* ============================================
   PAGE HERO (inner pages)
   ============================================ */
.page-hero {
  background: linear-gradient(135deg, var(--primary) 0%, #0a1428 100%);
  padding: 60px 0;
  text-align: center;
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(245,106,0,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.page-hero h1 {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 900;
  color: var(--white);
  margin-bottom: 12px;
}

.page-hero p {
  font-size: 15px;
  color: var(--gray);
  max-width: 500px;
  margin: 0 auto;
}

/* ============================================
   COMMUNITY / TOOLS SPECIFIC
   ============================================ */
.community-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.post-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: all .3s;
}

.post-card:hover { border-color: rgba(245,106,0,0.3); transform: translateY(-3px); }

.post-card h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
  line-height: 1.4;
}

.post-card p { font-size: 13px; color: var(--gray); line-height: 1.7; margin-bottom: 14px; }

.post-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 12px;
  color: #5a6080;
}

/* TOOL CARDS */
.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}

.tool-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
  transition: all .3s;
  cursor: pointer;
}

.tool-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(245,106,0,0.15);
}

.tool-icon { font-size: 40px; margin-bottom: 14px; }
.tool-name { font-size: 16px; font-weight: 700; color: var(--white); margin-bottom: 8px; }
.tool-desc { font-size: 13px; color: var(--gray); line-height: 1.6; }

/* ============================================
   MODAL (video player)
   ============================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.88);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s;
}

.modal-overlay.active { opacity: 1; pointer-events: all; }

.modal-box {
  background: #111827;
  border-radius: 16px;
  width: 90%;
  max-width: 800px;
  overflow: hidden;
  transform: scale(0.92);
  transition: transform .3s;
  border: 1px solid rgba(245,106,0,0.2);
}

.modal-overlay.active .modal-box { transform: scale(1); }

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.modal-title { font-size: 16px; font-weight: 700; color: var(--white); }

.modal-close {
  background: none;
  border: none;
  color: var(--gray);
  font-size: 22px;
  cursor: pointer;
  line-height: 1;
  transition: color .25s;
}

.modal-close:hover { color: var(--accent); }

.modal-video {
  aspect-ratio: 16/9;
  background: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--gray);
}

/* ============================================
   NOTICE BAR
   ============================================ */
.notice-bar {
  background: linear-gradient(90deg, var(--accent), #d95e00);
  padding: 10px 0;
  overflow: hidden;
}

.notice-scroll {
  display: flex;
  gap: 60px;
  animation: scrollNotice 30s linear infinite;
  white-space: nowrap;
}

.notice-scroll span {
  font-size: 13px;
  color: white;
  font-weight: 600;
}

@keyframes scrollNotice {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ============================================
   LAZY LOAD
   ============================================ */
img[data-src] { opacity: 0; transition: opacity .4s; }
img.loaded { opacity: 1; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .main-nav { display: none; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background: var(--primary); padding: 16px 20px; border-bottom: 2px solid var(--accent); z-index: 999; }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 12px 8px; border-bottom: 1px solid var(--border); }
  .nav-toggle { display: flex; }
  .header-inner { position: relative; }
  .hero-stats .container { flex-wrap: wrap; }
  .stat-item { min-width: 50%; border-right: none; border-bottom: 1px solid rgba(255,255,255,0.06); }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .video-grid { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .expert-grid { grid-template-columns: 1fr 1fr; }
  .hero-content { padding: 60px 0 100px; }
}

@media (max-width: 480px) {
  .expert-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 28px; }
  .hero-btns { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }
}

/* ============================================
   DISTURBANCE TAGS (SEO noise - visually hidden but crawlable)
   ============================================ */
.YnVLN {
  position: absolute;
  left: -9999px;
  top: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
  font-size: 0;
  line-height: 0;
  color: transparent;
  z-index: -1;
}

/* ============================================
   SECTION COMMON
   ============================================ */
.section { padding: 72px 0; }
.section-alt { background: rgba(255,255,255,0.015); }

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-tag {
  display: inline-block;
  background: rgba(245,106,0,0.15);
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 20px;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 900;
  color: var(--white);
  margin-bottom: 14px;
  line-height: 1.3;
  text-align: center;
}

.section-title em { color: var(--accent); font-style: normal; }

.section-desc {
  font-size: 15px;
  color: var(--gray);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ============================================
   HERO STATS BAR
   ============================================ */
.hero-stats {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(0,0,0,0.55);
  backdrop-filter: blur(8px);
  border-top: 1px solid rgba(255,255,255,0.08);
}

.hero-stats .container {
  display: flex;
  justify-content: space-around;
  padding: 16px 20px;
}

.stat-item {
  text-align: center;
  padding: 8px 20px;
  border-right: 1px solid rgba(255,255,255,0.06);
}

.stat-item:last-child { border-right: none; }

.stat-num {
  font-size: 24px;
  font-weight: 900;
  color: var(--accent);
  line-height: 1.2;
}

.stat-label {
  font-size: 12px;
  color: var(--gray);
  margin-top: 4px;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  border: none;
  font-family: var(--font-main);
  transition: all .25s;
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: white;
}

.btn-primary:hover {
  background: #d95e00;
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(245,106,0,0.4);
}

.btn-outline {
  background: transparent;
  color: white;
  border: 2px solid rgba(255,255,255,0.4);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(245,106,0,0.08);
}

.hero-btns {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 28px;
}

/* ============================================
   VIDEO CARD H5 PLAYER SUPPORT
   ============================================ */
.video-card video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* 视频卡片hover时播放按钮脉冲动画 */
@keyframes pulse-play {
  0% { transform: scale(0.85); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

.video-card:hover .play-btn svg {
  animation: pulse-play 0.4s ease forwards;
}

/* ============================================
   PRIVACY / TERMS / CONTACT PAGES
   ============================================ */
.legal-page { padding: 60px 0 80px; }

.legal-page h2 {
  font-size: 20px;
  font-weight: 800;
  color: var(--white);
  margin: 32px 0 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.legal-page p, .legal-page li {
  font-size: 14px;
  color: #b0bcd8;
  line-height: 1.9;
  margin-bottom: 12px;
}

.legal-page ul { padding-left: 20px; list-style: disc; }

.legal-page .last-updated {
  font-size: 13px;
  color: var(--gray);
  margin-bottom: 32px;
  padding: 12px 16px;
  background: rgba(245,106,0,0.06);
  border-left: 3px solid var(--accent);
  border-radius: 0 6px 6px 0;
}

/* ============================================
   404 PAGE
   ============================================ */
.error-page {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 20px;
}

.error-code {
  font-size: 120px;
  font-weight: 900;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 16px;
  opacity: 0.8;
}

.error-title {
  font-size: 28px;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 12px;
}

.error-desc {
  font-size: 15px;
  color: var(--gray);
  margin-bottom: 32px;
  max-width: 480px;
}

/* ============================================
   CONTACT FORM
   ============================================ */
.contact-form-wrap {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--gray);
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 11px 16px;
  color: #d0d6e8;
  font-size: 14px;
  font-family: var(--font-main);
  transition: border-color .25s;
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--accent);
}

.form-group textarea { resize: vertical; min-height: 120px; }

/* ============================================
   MOBILE NAV ACTIVE STATE
   ============================================ */
.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ============================================
   RESPONSIVE ADDITIONS
   ============================================ */
@media (max-width: 768px) {
  .section { padding: 48px 0; }
  .contact-form-wrap { padding: 24px; }
  .legal-page { padding: 40px 0 60px; }
  .hero-stats .container { flex-wrap: wrap; gap: 0; }
}

@media (max-width: 480px) {
  .section-title { font-size: 22px; }
  .cat-tabs { gap: 6px; }
  .cat-tab { padding: 7px 14px; font-size: 12px; }
}