/* ============================================
   抖音揭秘 - 影视传媒与创意社区平台
   原创样式表 | sfroa08.cn
   ============================================ */

/* --- 基础重置与变量 --- */
:root {
  --ri83pc: #E8364F;
  --cu0spj50: #1A1A2E;
  --ey738lk: #FFB347;
  --b6kfksog: #F5F0EB;
  --tx094f: #2D2D3A;
  --wpffm: #E8E3DE;
  --ag1o5d: #FAF8F5;
  --eyl0m: 0 4px 20px rgba(26,26,46,0.08);
  --q10j74h: 12px;
  --q9nduth: all 0.3s ease;
}

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

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

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
  color: var(--tx094f);
  background: var(--b6kfksog);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--ri83pc);
  text-decoration: none;
  transition: var(--q9nduth);
}

a:hover {
  color: var(--cu0spj50);
}

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

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

/* --- 顶部导航 --- */
.atfoawb {
  background: var(--cu0spj50);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 16px rgba(0,0,0,0.15);
}

.atfoawb .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0;
  padding-bottom: 0;
  min-height: 68px;
}

.bm3fd {
  display: flex;
  align-items: center;
  gap: 10px;
}

.bm3fd img {
  height: 44px;
  width: auto;
}

.bm3fd span {
  color: #fff;
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 2px;
}

.bvggg {
  display: flex;
  align-items: center;
  gap: 6px;
}

.bvggg a {
  color: rgba(255,255,255,0.85);
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--q9nduth);
}

.bvggg a:hover,
.bvggg a.active {
  background: var(--ri83pc);
  color: #fff;
}

.l1n84d {
  display: none;
  background: none;
  border: none;
  color: #fff;
  font-size: 1.6rem;
  cursor: pointer;
  padding: 8px;
}

/* --- 搜索栏 --- */
.z5ol2d4 {
  background: linear-gradient(135deg, var(--cu0spj50) 0%, #2d1b4e 100%);
  padding: 14px 0;
}

.z5ol2d4 .container {
  display: flex;
  justify-content: center;
}

.w9r4qcp {
  display: flex;
  max-width: 600px;
  width: 100%;
  background: #fff;
  border-radius: 30px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0,0,0,0.12);
}

.w9r4qcp input {
  flex: 1;
  border: none;
  padding: 12px 24px;
  font-size: 1rem;
  outline: none;
  color: var(--tx094f);
  background: transparent;
}

.w9r4qcp button {
  background: var(--ri83pc);
  color: #fff;
  border: none;
  padding: 12px 28px;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--q9nduth);
  font-weight: 600;
}

.w9r4qcp button:hover {
  background: #c92a40;
}

/* --- Hero Banner --- */
.jfwn5ed {
  position: relative;
  height: 520px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.jfwn5ed img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.zqzjufm {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(26,26,46,0.7) 0%, rgba(232,54,79,0.4) 100%);
}

.cukth5 {
  position: relative;
  z-index: 2;
  text-align: center;
  color: #fff;
  padding: 0 20px;
}

.cukth5 h1 {
  font-size: 2.8rem;
  font-weight: 800;
  margin-bottom: 16px;
  text-shadow: 0 2px 8px rgba(0,0,0,0.3);
  line-height: 1.3;
}

.cukth5 p {
  font-size: 1.2rem;
  max-width: 680px;
  margin: 0 auto 28px;
  opacity: 0.95;
  line-height: 1.8;
}

.ji35ilg {
  display: inline-block;
  padding: 14px 36px;
  border-radius: 30px;
  font-size: 1rem;
  font-weight: 600;
  transition: var(--q9nduth);
  cursor: pointer;
  border: none;
}

.u3titpt {
  background: var(--ri83pc);
  color: #fff;
}

.u3titpt:hover {
  background: #c92a40;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(232,54,79,0.4);
  color: #fff;
}

.o5dmd9y {
  background: transparent;
  color: #fff;
  border: 2px solid #fff;
}

.o5dmd9y:hover {
  background: #fff;
  color: var(--cu0spj50);
}

/* --- 通用区块标题 --- */
.cep9u2p4 {
  padding: 70px 0;
}

.w4eha4l {
  background: var(--ag1o5d);
}

.jrgtj92y {
  background: var(--cu0spj50);
  color: #fff;
}

.clmd0bo {
  text-align: center;
  margin-bottom: 48px;
}

.clmd0bo h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--cu0spj50);
  margin-bottom: 12px;
  position: relative;
  display: inline-block;
}

.jrgtj92y .clmd0bo h2 {
  color: #fff;
}

.clmd0bo h2::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: var(--ri83pc);
  margin: 12px auto 0;
  border-radius: 2px;
}

.clmd0bo p {
  color: #6b6b7b;
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto;
}

.jrgtj92y .clmd0bo p {
  color: rgba(255,255,255,0.7);
}

/* --- 传媒视频卡片 --- */
.gcksum {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.g3tngtk {
  background: #fff;
  border-radius: var(--q10j74h);
  overflow: hidden;
  box-shadow: var(--eyl0m);
  transition: var(--q9nduth);
  cursor: pointer;
}

.g3tngtk:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 36px rgba(26,26,46,0.15);
}

.crzwokr {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
}

.crzwokr img,
.crzwokr video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.g3tngtk:hover .crzwokr img,
.g3tngtk:hover .crzwokr video {
  transform: scale(1.06);
}

.wt0nerk6 {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  width: 64px;
  height: 64px;
  background: rgba(232,54,79,0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--q9nduth);
}

.g3tngtk:hover .wt0nerk6 {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.wt0nerk6::after {
  content: '';
  display: block;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 10px 0 10px 18px;
  border-color: transparent transparent transparent #fff;
  margin-left: 4px;
}

.hszpre68 {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.7);
  color: #fff;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.8rem;
}

.gk1knu {
  padding: 16px;
}

.gk1knu h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--cu0spj50);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.s99bvs7 {
  display: flex;
  gap: 16px;
  font-size: 0.82rem;
  color: #888;
}

.s99bvs7 span {
  display: flex;
  align-items: center;
  gap: 4px;
}

.k8gcrv {
  display: flex;
  gap: 6px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.q8326 {
  background: var(--wpffm);
  color: var(--tx094f);
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
}

/* --- 模块卡片网格 --- */
.n9lqz {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.css8kg5e {
  background: #fff;
  border-radius: var(--q10j74h);
  overflow: hidden;
  box-shadow: var(--eyl0m);
  transition: var(--q9nduth);
  padding: 28px;
  text-align: center;
}

.css8kg5e:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(26,26,46,0.12);
}

.vd0ub {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--ri83pc), var(--ey738lk));
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
  font-size: 1.6rem;
  color: #fff;
}

.css8kg5e h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--cu0spj50);
  margin-bottom: 10px;
}

.css8kg5e p {
  font-size: 0.92rem;
  color: #666;
  line-height: 1.7;
}

/* --- 两列布局 --- */
.gfssa {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.gfssa img {
  border-radius: var(--q10j74h);
  box-shadow: var(--eyl0m);
}

.bqlnqw h2 {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--cu0spj50);
  margin-bottom: 16px;
}

.bqlnqw p {
  font-size: 1rem;
  color: #555;
  margin-bottom: 14px;
  line-height: 1.8;
}

/* --- 专家展示 --- */
.wg8jc {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.c1nuns {
  background: #fff;
  border-radius: var(--q10j74h);
  overflow: hidden;
  box-shadow: var(--eyl0m);
  text-align: center;
  padding: 28px 20px;
  transition: var(--q9nduth);
}

.c1nuns:hover {
  transform: translateY(-4px);
}

.c1nuns img {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 16px;
  border: 3px solid var(--wpffm);
}

.c1nuns h4 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--cu0spj50);
  margin-bottom: 4px;
}

.c1nuns .z6s2qzib {
  color: var(--ri83pc);
  font-size: 0.88rem;
  margin-bottom: 10px;
}

.c1nuns p {
  font-size: 0.85rem;
  color: #777;
  line-height: 1.6;
  margin-bottom: 14px;
}

.ej28wtax {
  display: flex;
  gap: 8px;
  justify-content: center;
}

.ej28wtax a {
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
}

.ej28wtax .pmuuj {
  background: var(--ri83pc);
  color: #fff;
}

.ej28wtax .po53vmu {
  border: 1px solid var(--cu0spj50);
  color: var(--cu0spj50);
}

/* --- 合作品牌Logo墙 --- */
.bmgfn9y3 {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 36px;
  align-items: center;
}

.bmgfn9y3 .partner-item {
  background: #fff;
  padding: 18px 32px;
  border-radius: 10px;
  box-shadow: var(--eyl0m);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--cu0spj50);
  transition: var(--q9nduth);
  min-width: 160px;
  text-align: center;
}

.bmgfn9y3 .partner-item:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 24px rgba(26,26,46,0.12);
}

/* --- FAQ --- */
.pl5l3e {
  max-width: 800px;
  margin: 0 auto;
}

.fqh9aka {
  background: #fff;
  border-radius: var(--q10j74h);
  margin-bottom: 12px;
  box-shadow: var(--eyl0m);
  overflow: hidden;
}

.nv2vqwp {
  padding: 18px 24px;
  font-weight: 600;
  color: var(--cu0spj50);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--q9nduth);
}

.nv2vqwp:hover {
  color: var(--ri83pc);
}

.nv2vqwp::after {
  content: '+';
  font-size: 1.4rem;
  font-weight: 300;
  transition: var(--q9nduth);
}

.fqh9aka.active .nv2vqwp::after {
  transform: rotate(45deg);
}

.qijb5c {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  color: #555;
  font-size: 0.95rem;
  line-height: 1.8;
}

.fqh9aka.active .qijb5c {
  padding: 0 24px 18px;
  max-height: 300px;
}

/* --- 用户评论 --- */
.lypkevg {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.itmgjvbi {
  background: #fff;
  border-radius: var(--q10j74h);
  padding: 24px;
  box-shadow: var(--eyl0m);
}

.t2y6coc {
  color: var(--ey738lk);
  font-size: 1rem;
  margin-bottom: 10px;
}

.itmgjvbi blockquote {
  font-size: 0.95rem;
  color: #555;
  line-height: 1.8;
  margin-bottom: 14px;
  font-style: italic;
}

.bt5qs {
  display: flex;
  align-items: center;
  gap: 10px;
}

.bt5qs .avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--ri83pc);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
}

.bt5qs .name {
  font-weight: 600;
  color: var(--cu0spj50);
  font-size: 0.9rem;
}

.bt5qs .date {
  font-size: 0.8rem;
  color: #999;
}

/* --- 联系我们 --- */
.beqalnn9 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 36px;
}

.iftub {
  background: #fff;
  border-radius: var(--q10j74h);
  padding: 32px;
  box-shadow: var(--eyl0m);
}

.iftub h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--cu0spj50);
  margin-bottom: 18px;
}

.glg77qq0 {
  display: flex;
  gap: 12px;
  margin-bottom: 14px;
  align-items: flex-start;
}

.glg77qq0 .label {
  font-weight: 600;
  color: var(--cu0spj50);
  min-width: 80px;
  font-size: 0.92rem;
}

.glg77qq0 .value {
  color: #555;
  font-size: 0.92rem;
}

.y512m {
  display: flex;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
}

.zpd2ef {
  text-align: center;
}

.zpd2ef img {
  width: 150px;
  height: 150px;
  border-radius: 10px;
  margin-bottom: 8px;
}

.zpd2ef span {
  font-size: 0.85rem;
  color: #666;
}

/* --- 社交分享 --- */
.e86gdxe9 {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 24px;
}

.fakem {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  border-radius: 24px;
  font-size: 0.88rem;
  font-weight: 500;
  color: #fff;
  transition: var(--q9nduth);
}

.fakem:hover {
  transform: translateY(-2px);
  color: #fff;
}

.gfvpvwhp { background: #07C160; }
.xmnv94w5 { background: #E6162D; }
.zb4w5ebg { background: #161823; }
.p641wqi { background: #00A1D6; }

/* --- 页脚 --- */
.hxma4llf {
  background: var(--cu0spj50);
  color: rgba(255,255,255,0.7);
  padding: 48px 0 24px;
}

.wqtoo {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 36px;
  margin-bottom: 36px;
}

.pckplt .bm3fd {
  margin-bottom: 14px;
}

.pckplt p {
  font-size: 0.9rem;
  line-height: 1.8;
}

.hxma4llf h4 {
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.j36wt a {
  display: block;
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
  margin-bottom: 8px;
  transition: var(--q9nduth);
}

.j36wt a:hover {
  color: var(--ri83pc);
}

.v8pb8j {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 20px;
  text-align: center;
  font-size: 0.85rem;
}

.v8pb8j a {
  color: rgba(255,255,255,0.6);
}

/* --- 面包屑 --- */
.o2vofyl {
  padding: 14px 0;
  font-size: 0.88rem;
  color: #888;
}

.o2vofyl a {
  color: var(--ri83pc);
}

.o2vofyl span {
  margin: 0 6px;
  color: #ccc;
}

/* --- How-To 指南 --- */
.a2d7zre {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}

.eyjhmp8h {
  background: #fff;
  border-radius: var(--q10j74h);
  padding: 28px 20px;
  text-align: center;
  box-shadow: var(--eyl0m);
  position: relative;
  counter-increment: step;
}

.eyjhmp8h::before {
  content: counter(step);
  display: flex;
  width: 44px;
  height: 44px;
  background: var(--ri83pc);
  color: #fff;
  border-radius: 50%;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 700;
  margin: 0 auto 14px;
}

.eyjhmp8h h4 {
  font-size: 1rem;
  color: var(--cu0spj50);
  margin-bottom: 8px;
}

.eyjhmp8h p {
  font-size: 0.88rem;
  color: #666;
}

/* --- 内页样式 --- */
.cyuyi7ss {
  position: relative;
  height: 360px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.cyuyi7ss img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.xu4wtl {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(26,26,46,0.75) 0%, rgba(232,54,79,0.35) 100%);
}

.suqf95xx {
  position: relative;
  z-index: 2;
  text-align: center;
  color: #fff;
}

.suqf95xx h1 {
  font-size: 2.4rem;
  font-weight: 800;
  margin-bottom: 10px;
}

.suqf95xx p {
  font-size: 1.1rem;
  opacity: 0.9;
}

.t1h1fe08 {
  max-width: 900px;
  margin: 0 auto;
  padding: 48px 20px;
}

.t1h1fe08 h2 {
  font-size: 1.6rem;
  color: var(--cu0spj50);
  margin: 32px 0 16px;
  font-weight: 700;
}

.t1h1fe08 h3 {
  font-size: 1.3rem;
  color: var(--cu0spj50);
  margin: 24px 0 12px;
  font-weight: 600;
}

.t1h1fe08 p {
  margin-bottom: 16px;
  line-height: 1.9;
  color: #444;
}

.t1h1fe08 img {
  border-radius: var(--q10j74h);
  margin: 24px 0;
  box-shadow: var(--eyl0m);
}

/* --- 懒加载占位 --- */
.xqzgu3j {
  opacity: 0;
  transition: opacity 0.5s ease;
}

.xqzgu3j.loaded {
  opacity: 1;
}

/* --- 响应式 --- */
@media (max-width: 1024px) {
  .gcksum {
    grid-template-columns: repeat(2, 1fr);
  }
  .n9lqz {
    grid-template-columns: repeat(2, 1fr);
  }
  .wg8jc {
    grid-template-columns: repeat(2, 1fr);
  }
  .wqtoo {
    grid-template-columns: repeat(2, 1fr);
  }
  .a2d7zre {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .bvggg {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--cu0spj50);
    flex-direction: column;
    padding: 16px;
    gap: 4px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.2);
  }

  .bvggg.active {
    display: flex;
  }

  .l1n84d {
    display: block;
  }

  .jfwn5ed {
    height: 400px;
  }

  .cukth5 h1 {
    font-size: 1.8rem;
  }

  .cukth5 p {
    font-size: 1rem;
  }

  .gcksum {
    grid-template-columns: 1fr;
  }

  .n9lqz {
    grid-template-columns: 1fr;
  }

  .gfssa {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .wg8jc {
    grid-template-columns: 1fr;
  }

  .lypkevg {
    grid-template-columns: 1fr;
  }

  .beqalnn9 {
    grid-template-columns: 1fr;
  }

  .wqtoo {
    grid-template-columns: 1fr;
  }

  .a2d7zre {
    grid-template-columns: 1fr;
  }

  .cep9u2p4 {
    padding: 40px 0;
  }

  .clmd0bo h2 {
    font-size: 1.5rem;
  }

  .cyuyi7ss {
    height: 260px;
  }

  .suqf95xx h1 {
    font-size: 1.6rem;
  }
}

@media (max-width: 480px) {
  .jfwn5ed {
    height: 320px;
  }

  .cukth5 h1 {
    font-size: 1.5rem;
  }

  .ji35ilg {
    padding: 12px 24px;
    font-size: 0.9rem;
  }
}