/* ===== 四虎 全站样式 ===== */
/* 原创配色：珊瑚粉#FF6B9D 暖橙#FF8A65 深紫#2D1B69 浅灰#F5F0FF 金色#FFD700 */

:root {
  --primary: #FF6B9D;
  --primary-dark: #E8527F;
  --secondary: #FF8A65;
  --accent: #FFD700;
  --dark: #1A0A2E;
  --dark2: #2D1B69;
  --light: #F5F0FF;
  --white: #FFFFFF;
  --gray: #8B7FA8;
  --gray-light: #E8E0F0;
  --text: #2E2042;
  --text-light: #6B5B8A;
  --gradient: linear-gradient(135deg, #FF6B9D 0%, #FF8A65 50%, #FFD700 100%);
  --gradient2: linear-gradient(135deg, #2D1B69 0%, #1A0A2E 100%);
  --shadow: 0 4px 20px rgba(255,107,157,0.15);
  --shadow-lg: 0 8px 40px rgba(255,107,157,0.2);
  --radius: 12px;
  --radius-lg: 20px;
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--light);
  line-height: 1.7;
  overflow-x: hidden;
}

a { color: var(--primary); text-decoration:none; transition: color .3s; }
a:hover { color: var(--primary-dark); }

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

.lrjfel7q { max-width:1200px; margin:0 auto; padding:0 20px; }

/* ===== 头部导航 ===== */
.doo44 {
  background: var(--gradient2);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.z5gw4 {
  display: flex;
  align-items: center;
  gap: 10px;
}

.z5gw4 img {
  height: 42px;
  width: auto;
}

.z5gw4 h1 {
  color: var(--white);
  font-size: 1.4rem;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.zop5d {
  display: flex;
  align-items: center;
  gap: 0;
}

.zop5d a {
  color: rgba(255,255,255,0.85);
  padding: 8px 16px;
  font-size: 0.95rem;
  border-radius: 8px;
  transition: all .3s;
  white-space: nowrap;
}

.zop5d a:hover,
.zop5d a.active {
  color: var(--white);
  background: rgba(255,107,157,0.2);
}

.c3txz {
  display: none;
  background: none;
  border: none;
  color: var(--white);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 8px;
}

/* 搜索框 */
.osej5 {
  background: rgba(255,255,255,0.05);
  border-bottom: 1px solid rgba(255,255,255,0.1);
  padding: 10px 0;
}

.osej5 .lrjfel7q {
  display: flex;
  justify-content: center;
}

.h60kmege {
  position: relative;
  width: 100%;
  max-width: 600px;
}

.h60kmege input {
  width: 100%;
  padding: 10px 45px 10px 20px;
  border: 2px solid rgba(255,107,157,0.3);
  border-radius: 30px;
  background: rgba(255,255,255,0.08);
  color: var(--white);
  font-size: 0.95rem;
  outline: none;
  transition: border-color .3s;
}

.h60kmege input::placeholder { color: rgba(255,255,255,0.4); }
.h60kmege input:focus { border-color: var(--primary); }

.h60kmege button {
  position: absolute;
  right: 5px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--gradient);
  border: none;
  color: var(--white);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ===== 横幅区 ===== */
.nv5v8 {
  position: relative;
  height: 480px;
  overflow: hidden;
  background: var(--dark);
}

.nv5v8 img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.7;
}

.f8fo8bh {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(to bottom, rgba(26,10,46,0.3), rgba(26,10,46,0.8));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 20px;
}

.f8fo8bh h2 {
  color: var(--white);
  font-size: 2.8rem;
  font-weight: 800;
  margin-bottom: 16px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.5);
}

.f8fo8bh h2 span {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.f8fo8bh p {
  color: rgba(255,255,255,0.85);
  font-size: 1.15rem;
  max-width: 700px;
  margin-bottom: 24px;
}

.vric4r0y {
  display: inline-block;
  padding: 12px 36px;
  background: var(--gradient);
  color: var(--white);
  border-radius: 30px;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: transform .3s, box-shadow .3s;
  box-shadow: var(--shadow);
}

.vric4r0y:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--white);
}

.jve6hb {
  display: inline-block;
  padding: 10px 28px;
  border: 2px solid var(--primary);
  color: var(--primary);
  border-radius: 30px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: all .3s;
}

.jve6hb:hover {
  background: var(--primary);
  color: var(--white);
}

/* ===== 通用板块 ===== */
.section {
  padding: 60px 0;
}

.sj01v {
  background: var(--gradient2);
  color: var(--white);
}

.jyprx {
  background: var(--white);
}

.wobah3cw {
  text-align: center;
  margin-bottom: 40px;
}

.wobah3cw h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 10px;
}

.sj01v .wobah3cw h2 { color: var(--white); }

.wobah3cw h2 span {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.wobah3cw p {
  color: var(--text-light);
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto;
}

.sj01v .wobah3cw p { color: rgba(255,255,255,0.7); }

/* ===== 视频卡片网格 ===== */
.lgvblyfu {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.odd7jqpy {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform .3s, box-shadow .3s;
  cursor: pointer;
}

.odd7jqpy:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.odd7jqpy .hl2j0n6l {
  position: relative;
  padding-top: 56.25%;
  overflow: hidden;
}

.odd7jqpy .hl2j0n6l img {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s;
}

.odd7jqpy:hover .hl2j0n6l img { transform: scale(1.08); }

.odd7jqpy .wrtq6k {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  width: 50px;
  height: 50px;
  background: rgba(255,107,157,0.85);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity .3s;
}

.odd7jqpy:hover .wrtq6k { opacity: 1; }

.wrtq6k::after {
  content: '';
  display: block;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 8px 0 8px 14px;
  border-color: transparent transparent transparent white;
  margin-left: 3px;
}

.odd7jqpy .qylbioqe {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.75);
  color: var(--white);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.8rem;
}

.odd7jqpy .uqv6yisa {
  padding: 14px;
}

.odd7jqpy .uqv6yisa h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.odd7jqpy .zq4wl0o {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--gray);
}

.odd7jqpy .zq4wl0o span { display: flex; align-items: center; gap: 4px; }

.odd7jqpy .owra9bsr {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.orp3vz17 {
  display: inline-block;
  padding: 2px 10px;
  background: rgba(255,107,157,0.1);
  color: var(--primary);
  border-radius: 20px;
  font-size: 0.75rem;
}

/* ===== 分类标签导航 ===== */
.a0e7quhl {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-bottom: 30px;
}

.a0e7quhl .tab {
  padding: 8px 22px;
  border-radius: 25px;
  border: 2px solid var(--gray-light);
  color: var(--text-light);
  font-size: 0.9rem;
  cursor: pointer;
  transition: all .3s;
  background: var(--white);
}

.a0e7quhl .tab:hover,
.a0e7quhl .tab.active {
  border-color: var(--primary);
  color: var(--white);
  background: var(--gradient);
}

/* ===== 专家展示 ===== */
.jhw648n4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.l67zpfxl {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 30px 20px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform .3s;
}

.l67zpfxl:hover { transform: translateY(-4px); }

.l67zpfxl .nfp7q {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 16px;
  border: 3px solid var(--primary);
}

.l67zpfxl h3 {
  font-size: 1.1rem;
  color: var(--dark);
  margin-bottom: 4px;
}

.l67zpfxl .di7evv {
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.l67zpfxl p {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 16px;
}

.l67zpfxl .vd9294ku {
  display: inline-block;
  padding: 6px 18px;
  background: var(--gradient);
  color: var(--white);
  border-radius: 20px;
  font-size: 0.8rem;
  margin: 0 4px;
}

/* ===== FAQ ===== */
.k135ejv5 {
  max-width: 800px;
  margin: 0 auto;
}

.fld9l7 {
  background: var(--white);
  border-radius: var(--radius);
  margin-bottom: 12px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
  overflow: hidden;
}

.fld9l7 .wxqcpu13 {
  padding: 18px 24px;
  font-weight: 600;
  color: var(--dark);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background .3s;
}

.fld9l7 .wxqcpu13:hover { background: rgba(255,107,157,0.05); }

.fld9l7 .wxqcpu13::after {
  content: '+';
  font-size: 1.4rem;
  color: var(--primary);
  font-weight: 300;
  transition: transform .3s;
}

.faq-item.active .wxqcpu13::after {
  content: '-';
  transform: rotate(180deg);
}

.fld9l7 .yczgau {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s, padding .4s;
  color: var(--text-light);
  font-size: 0.95rem;
  line-height: 1.8;
}

.faq-item.active .yczgau {
  padding: 0 24px 18px;
  max-height: 500px;
}

/* ===== 用户评论 ===== */
.ikpf2f56 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.xccvhr {
  background: var(--white);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}

.xccvhr .fa84cz {
  color: var(--accent);
  font-size: 1.1rem;
  margin-bottom: 12px;
}

.xccvhr .o96skj {
  font-size: 0.95rem;
  color: var(--text);
  margin-bottom: 16px;
  line-height: 1.7;
  font-style: italic;
}

.xccvhr .jbln2 {
  display: flex;
  align-items: center;
  gap: 10px;
}

.xccvhr .ylg1avum {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
  font-size: 1rem;
}

.xccvhr .w8ynmd6 .r47bghr {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--dark);
}

.xccvhr .w8ynmd6 .g0s7y1x {
  font-size: 0.8rem;
  color: var(--gray);
}

/* ===== 合作品牌墙 ===== */
.oeq19u {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 30px;
  align-items: center;
}

.oeq19u .l6evk04 {
  padding: 16px 28px;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--gray);
  transition: all .3s;
}

.oeq19u .l6evk04:hover {
  color: var(--primary);
  box-shadow: var(--shadow);
}

/* ===== 联系我们 ===== */
.jtb141k {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.bybdf {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow);
}

.bybdf h3 {
  font-size: 1.2rem;
  color: var(--dark);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--gray-light);
}

.bybdf .lky9q58z {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 12px;
  font-size: 0.95rem;
  color: var(--text-light);
}

.bybdf .lky9q58z .o4kpwh {
  font-weight: 600;
  color: var(--dark);
  min-width: 80px;
}

/* ===== 页脚 ===== */
.j78zf58 {
  background: var(--dark);
  color: rgba(255,255,255,0.7);
  padding: 50px 0 20px;
}

.lbjtu {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 30px;
}

.qj6i8qcm h4 {
  color: var(--white);
  font-size: 1.1rem;
  margin-bottom: 16px;
  position: relative;
  padding-bottom: 10px;
}

.qj6i8qcm h4::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 40px;
  height: 3px;
  background: var(--gradient);
  border-radius: 2px;
}

.qj6i8qcm p {
  font-size: 0.9rem;
  line-height: 1.8;
  margin-bottom: 10px;
}

.qj6i8qcm a {
  display: block;
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
  padding: 4px 0;
  transition: color .3s;
}

.qj6i8qcm a:hover { color: var(--primary); }

.a3p0l1 {
  display: flex;
  gap: 16px;
  margin-top: 12px;
}

.a3p0l1 img {
  width: 100px;
  height: 100px;
  border-radius: 8px;
}

.a3p0l1 .sgizrbzf {
  text-align: center;
  font-size: 0.75rem;
  margin-top: 4px;
  color: rgba(255,255,255,0.5);
}

.dwpdm {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 20px;
  text-align: center;
  font-size: 0.85rem;
}

.dwpdm .xxxhg {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 12px;
}

.dwpdm .xxxhg a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  color: var(--white);
  font-size: 0.9rem;
  transition: background .3s;
}

.dwpdm .xxxhg a:hover { background: var(--primary); }

/* ===== 面包屑 ===== */
.j4n3d283 {
  padding: 16px 0;
  font-size: 0.85rem;
  color: var(--gray);
}

.j4n3d283 a { color: var(--primary); }
.j4n3d283 span { margin: 0 8px; }

/* ===== 视频播放页 ===== */
.zn8nd {
  background: #000;
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 24px;
}

.zn8nd video,
.zn8nd iframe {
  width: 100%;
  aspect-ratio: 16/9;
  display: block;
}

.hkdyqa {
  background: var(--white);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  margin-bottom: 24px;
}

.hkdyqa h1 {
  font-size: 1.5rem;
  color: var(--dark);
  margin-bottom: 12px;
}

.l30tlig {
  display: flex;
  gap: 20px;
  font-size: 0.9rem;
  color: var(--gray);
  margin-bottom: 16px;
}

.um792y {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.8;
}

/* ===== How-To 指南 ===== */
.p27qdw1t {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.jb1jc4b {
  background: var(--white);
  border-radius: var(--radius);
  padding: 30px;
  text-align: center;
  box-shadow: var(--shadow);
  position: relative;
}

.jb1jc4b .v4ydbk6s {
  width: 50px;
  height: 50px;
  background: var(--gradient);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 700;
  margin: 0 auto 16px;
}

.jb1jc4b h3 {
  font-size: 1.1rem;
  color: var(--dark);
  margin-bottom: 10px;
}

.jb1jc4b p {
  font-size: 0.9rem;
  color: var(--text-light);
}

/* ===== 内页布局 ===== */
.flljqmlm {
  background: var(--gradient2);
  padding: 40px 0;
  text-align: center;
}

.flljqmlm h1 {
  color: var(--white);
  font-size: 2.2rem;
  font-weight: 700;
}

.flljqmlm p {
  color: rgba(255,255,255,0.7);
  font-size: 1rem;
  margin-top: 8px;
}

.page-content {
  padding: 40px 0;
}

/* ===== 社区功能模块 ===== */
.eq92r {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.n5xst {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 30px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform .3s;
}

.n5xst:hover { transform: translateY(-4px); }

.n5xst .ut5hc {
  width: 64px;
  height: 64px;
  background: var(--gradient);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 1.8rem;
}

.n5xst h3 {
  font-size: 1.1rem;
  color: var(--dark);
  margin-bottom: 8px;
}

.n5xst p {
  font-size: 0.9rem;
  color: var(--text-light);
}

/* ===== 数据统计 ===== */
.mcha8km {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  padding: 40px 0;
}

.shlhpwy {
  text-align: center;
}

.shlhpwy .dq1oun1q {
  font-size: 2.5rem;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.shlhpwy .o4kpwh {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
  margin-top: 4px;
}

/* ===== 懒加载占位 ===== */
img[loading="lazy"] {
  opacity: 0;
  transition: opacity .5s;
}

img[loading="lazy"].loaded,
img.loaded {
  opacity: 1;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .lgvblyfu { grid-template-columns: repeat(3, 1fr); }
  .jhw648n4 { grid-template-columns: repeat(2, 1fr); }
  .lbjtu { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .c3txz { display: block; }
  
  .zop5d {
    display: none;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: var(--dark);
    flex-direction: column;
    padding: 10px 0;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
  }
  
  .nav-main.open { display: flex; }
  
  .zop5d a {
    padding: 12px 24px;
    border-radius: 0;
  }
  
  .nv5v8 { height: 360px; }
  .f8fo8bh h2 { font-size: 1.8rem; }
  .f8fo8bh p { font-size: 0.95rem; }
  
  .lgvblyfu { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .ikpf2f56 { grid-template-columns: 1fr; }
  .jtb141k { grid-template-columns: 1fr; }
  .p27qdw1t { grid-template-columns: 1fr; }
  .eq92r { grid-template-columns: 1fr; }
  .mcha8km { grid-template-columns: repeat(2, 1fr); }
  .lbjtu { grid-template-columns: 1fr; }
  
  .section { padding: 40px 0; }
  .wobah3cw h2 { font-size: 1.5rem; }
}

@media (max-width: 480px) {
  .lgvblyfu { grid-template-columns: 1fr; }
  .jhw648n4 { grid-template-columns: 1fr; }
  .header-top { padding: 8px 12px; }
  .z5gw4 h1 { font-size: 1.1rem; }
}