/* ==========================================================================
   国产视频 - 全局样式表
   原创设计：紫粉色系校园风格
   ========================================================================== */

/* 变量定义 */
:root {
    /* 品牌主色调 */
    --primary-color: #E74C8C;     /* 玫瑰粉/紫粉色 */
    --primary-light: #F5E6F0;     /* 极浅粉紫 */
    --primary-dark: #C2185B;      /* 深粉紫 */
    
    /* 辅助色 */
    --secondary-color: #9B59B6;   /* 柔和紫 */
    --accent-color: #00BCD4;      /* 青蓝强调色 */
    
    /* 标签颜色 */
    --tag-pink: #FF4081;
    --tag-blue: #03A9F4;
    --tag-purple: #8E24AA;
    
    /* 文本颜色 */
    --text-main: #333333;
    --text-muted: #666666;
    --text-light: #999999;
    --text-white: #FFFFFF;
    
    /* 背景颜色 */
    --bg-main: #FFFFFF;
    --bg-light: #F8F9FA;
    --bg-dark: #1A1A1A;
    
    /* 边框与阴影 */
    --border-color: #EEEEEE;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 15px rgba(231, 76, 140, 0.15);
    --shadow-hover: 0 8px 25px rgba(231, 76, 140, 0.25);
    
    /* 布局 */
    --container-width: 1200px;
    --header-height: 70px;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --transition: all 0.3s ease;
}

/* 基础重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
    line-height: 1.6;
    color: var(--text-main);
    background-color: var(--bg-main);
    -webkit-font-smoothing: antialiased;
}

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

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

ul {
    list-style: none;
}

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

.xx2uzb {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* 按钮样式 */
.9efh58z {
    display: inline-block;
    padding: 10px 24px;
    border-radius: 30px;
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

.zho7pi {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--text-white);
    box-shadow: var(--shadow-md);
}

.zho7pi:hover {
    color: var(--text-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.giz98unv {
    background: transparent;
    color: var(--text-white);
    border-color: var(--text-white);
}

.giz98unv:hover {
    background: rgba(255,255,255,0.1);
    color: var(--text-white);
}

.rt4km1y {
    padding: 6px 16px;
    font-size: 14px;
}

.joyn1 {
    padding: 14px 32px;
    font-size: 18px;
}

/* 头部导航 */
.ylp79va {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition);
}

.kzxrzm {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.0g8m1pn {
    display: flex;
    align-items: center;
    gap: 10px;
}

.zfarwz {
    height: 40px;
    width: auto;
}

.x2qwh14 {
    font-size: 22px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.81oz9 ul {
    display: flex;
    gap: 30px;
}

.81oz9 a {
    color: var(--text-main);
    font-weight: 500;
    font-size: 16px;
    position: relative;
    padding: 5px 0;
}

.81oz9 a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background-color: var(--primary-color);
    transition: var(--transition);
    border-radius: 2px;
}

.81oz9 a:hover::after,
.81oz9 a.c6ah77j::after {
    width: 100%;
}

.81oz9 a:hover,
.81oz9 a.c6ah77j {
    color: var(--primary-color);
}

/* 搜索框 */
.cxqms0wt {
    position: relative;
}

.33q7o {
    display: flex;
    align-items: center;
    background-color: var(--bg-light);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.ecqb0h3h {
    border: none;
    background: transparent;
    padding: 8px 15px;
    width: 200px;
    outline: none;
    font-size: 14px;
}

.uqlq7z4p {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 8px 15px;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
}

.uqlq7z4p:hover {
    background: var(--primary-dark);
}

/* 移动端菜单按钮 */
.4owuz86i {
    display: none;
    background: transparent;
    border: none;
    cursor: pointer;
    width: 30px;
    height: 24px;
    position: relative;
    z-index: 1001;
}

.4owuz86i span {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--text-main);
    position: absolute;
    transition: var(--transition);
    border-radius: 2px;
}

.4owuz86i span:nth-child(1) { top: 0; }
.4owuz86i span:nth-child(2) { top: 10px; }
.4owuz86i span:nth-child(3) { top: 20px; }

.4owuz86i.c6ah77j span:nth-child(1) {
    transform: rotate(45deg);
    top: 10px;
}
.4owuz86i.c6ah77j span:nth-child(2) {
    opacity: 0;
}
.4owuz86i.c6ah77j span:nth-child(3) {
    transform: rotate(-45deg);
    top: 10px;
}

.hl1k88z {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background-color: white;
    box-shadow: 0 10px 15px rgba(0,0,0,0.1);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

.hl1k88z.c6ah77j {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.hl1k88z ul {
    padding: 20px 0;
}

.hl1k88z li {
    border-bottom: 1px solid var(--border-color);
}

.hl1k88z a {
    display: block;
    padding: 15px 20px;
    color: var(--text-main);
    font-weight: 500;
}

/* 主体内容 */
.nj1inumx {
    padding-top: var(--header-height);
    min-height: calc(100vh - 300px);
}

/* 通用区块样式 */
.ggbtzel {
    padding: 80px 0;
}

.p6qig {
    background-color: var(--bg-light);
}

.58vz5a5 {
    text-align: center;
    margin-bottom: 50px;
}

.sgcidcph {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--text-main);
    position: relative;
    display: inline-block;
}

.sgcidcph::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

.0jn9i3a5 {
    color: var(--text-muted);
    font-size: 16px;
    max-width: 700px;
    margin: 0 auto;
}

/* Hero区域 */
.p0gjs2 {
    position: relative;
    height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
}

.zccr9gp {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: 1;
}

.apd6td {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(0,0,0,0.4), rgba(231, 76, 140, 0.6));
    z-index: 2;
}

.74gwut2h {
    position: relative;
    z-index: 3;
    color: white;
    max-width: 800px;
}

.ei267i {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 20px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.4yxr6m {
    font-size: 18px;
    margin-bottom: 40px;
    text-shadow: 0 1px 5px rgba(0,0,0,0.3);
    line-height: 1.8;
}

.e1s8ec {
    display: flex;
    gap: 20px;
    justify-content: center;
}

/* 传媒卡片网格 */
.6o0s3gx {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
}

.dif7j {
    background: white;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    cursor: pointer;
}

.dif7j:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.5jlk8 {
    position: relative;
    padding-top: 56.25%; /* 16:9 比例 */
    overflow: hidden;
}

.5jlk8 img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.dif7j:hover .5jlk8 img {
    transform: scale(1.05);
}

.pzzhe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.dif7j:hover .pzzhe {
    opacity: 1;
}

.ioehjg1c {
    width: 60px;
    height: 60px;
    background: rgba(231, 76, 140, 0.9);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    padding-left: 5px; /* 调整播放三角形居中 */
    box-shadow: 0 0 20px rgba(231, 76, 140, 0.5);
}

.34ih4 {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background: rgba(0,0,0,0.7);
    color: white;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
}

.7lr3v5 {
    padding: 20px;
}

.e6fa87 {
    display: flex;
    gap: 8px;
    margin-bottom: 10px;
}

.g4tut {
    font-size: 12px;
    padding: 2px 8px;
    border-radius: 4px;
    color: white;
    font-weight: 500;
}

.86czle { background-color: var(--tag-pink); }
.5wtxyu4j { background-color: var(--tag-blue); }
.kek613a { background-color: var(--tag-purple); }

.16zsk3d {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-main);
    line-height: 1.4;
    height: 44px; /* 限制两行高度 */
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.dqd4bw7 {
    display: flex;
    justify-content: space-between;
    color: var(--text-muted);
    font-size: 13px;
}

.1tu6yze {
    display: block;
    text-align: center;
    margin-top: 40px;
    font-size: 16px;
    font-weight: 600;
}

/* AI功能展示 */
.chz3c {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.q9q4z0f {
    background: white;
    padding: 40px 30px;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border-top: 4px solid var(--primary-color);
}

.q9q4z0f:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.phkqk6 {
    font-size: 48px;
    margin-bottom: 20px;
}

.koal6b {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--text-main);
}

.5svh2u {
    color: var(--text-muted);
    font-size: 15px;
}

/* 专家展示 */
.yeruc1t {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.3wheosk6 {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    text-align: center;
    padding-bottom: 30px;
}

.rvjuz {
    width: 100%;
    aspect-ratio: 1/1;
    object-fit: cover;
    border-bottom: 5px solid var(--primary-color);
}

.slvdk {
    padding: 25px 20px 0;
}

.6sitp8e {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 5px;
}

.fk8yj {
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 15px;
    font-size: 14px;
}

.veyote {
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 20px;
    height: 65px;
    overflow: hidden;
}

.48xid {
    display: flex;
    justify-content: center;
    gap: 10px;
}

/* 社区互动 */
.i7741q {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background-size: cover;
    background-position: center;
    position: relative;
    padding: 80px 40px;
    text-align: center;
    color: white;
    margin-bottom: 50px;
}

.i7741q::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 1;
}

.i3ksw0jl {
    position: relative;
    z-index: 2;
}

.i3ksw0jl h3 {
    font-size: 32px;
    margin-bottom: 15px;
}

.i3ksw0jl p {
    font-size: 18px;
    margin-bottom: 30px;
}

.0us9z {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.3u9hi {
    background: white;
    padding: 30px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.3u9hi h4 {
    font-size: 18px;
    margin-bottom: 15px;
    color: var(--primary-dark);
}

.3u9hi p {
    color: var(--text-muted);
    font-size: 14px;
}

/* 用户评价 */
.44nze {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.bzjcu6p {
    background: var(--primary-light);
    padding: 30px;
    border-radius: var(--radius-lg);
    position: relative;
}

.6gumzx6 {
    color: #FFC107;
    font-size: 20px;
    margin-bottom: 15px;
}

.kao63 {
    font-size: 15px;
    color: var(--text-main);
    font-style: italic;
    margin-bottom: 20px;
    line-height: 1.6;
}

.ixv13 {
    font-weight: 600;
    color: var(--primary-dark);
    font-size: 14px;
    text-align: right;
}

/* FAQ部分 */
.rx80nbw {
    max-width: 800px;
    margin: 0 auto;
}

.j7htac2 {
    background: white;
    margin-bottom: 15px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.bth0txz {
    padding: 20px 25px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    position: relative;
    color: var(--text-main);
    background-color: white;
    border-left: 4px solid var(--primary-color);
}

.h8y1jm {
    padding: 0 25px 20px;
    color: var(--text-muted);
    font-size: 15px;
    border-top: 1px solid var(--border-color);
    margin-top: 5px;
    padding-top: 15px;
}

/* 合作品牌与联系方式 */
.um2wf14 {
    display: flex;
    flex-wrap: wrap;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.lcj8e3x {
    flex: 1;
    min-width: 300px;
    padding: 40px;
    background: linear-gradient(135deg, var(--primary-light), white);
}

.lcj8e3x h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: var(--primary-dark);
}

.lcj8e3x p {
    margin-bottom: 15px;
    color: var(--text-main);
    font-size: 15px;
}

.f6vsln {
    margin-top: 30px;
    display: flex;
    gap: 15px;
}

.f6vsln .giz98unv {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.f6vsln .giz98unv:hover {
    background: var(--primary-color);
    color: white;
}

.0fvbp {
    flex: 1;
    min-width: 300px;
    padding: 40px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    align-content: center;
}

.zt0zh {
    background: var(--bg-light);
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    font-weight: 600;
    color: var(--text-muted);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.zt0zh:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* 底部样式 */
.iml3sg {
    background-color: var(--bg-dark);
    color: var(--text-light);
    padding: 60px 0 20px;
}

.ay354a0 {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 2fr;
    gap: 40px;
    margin-bottom: 40px;
}

.qw08zeyt {
    height: 50px;
    margin-bottom: 20px;
    filter: brightness(0) invert(1);
}

.aissxp {
    margin-bottom: 25px;
    font-size: 14px;
    line-height: 1.8;
}

.52gx5h5 {
    display: flex;
    align-items: center;
    gap: 10px;
}

.rpdze {
    font-size: 14px;
}

.d2e4zdvw {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 12px;
}

.d2e4zdvw:hover {
    background: var(--primary-color);
    color: white;
}

.6bzwccc {
    color: white;
    font-size: 18px;
    margin-bottom: 20px;
    font-weight: 600;
}

.cdop8yn ul li {
    margin-bottom: 12px;
}

.cdop8yn a {
    color: var(--text-light);
    font-size: 14px;
}

.cdop8yn a:hover {
    color: var(--primary-color);
    padding-left: 5px;
}

.0hfpfbc li {
    margin-bottom: 12px;
    font-size: 14px;
}

.0hfpfbc strong {
    color: white;
}

.7xkicm39 {
    display: flex;
    gap: 20px;
    margin-top: 20px;
}

.ez1n06hl {
    text-align: center;
}

.ez1n06hl img {
    width: 80px;
    height: 80px;
    border-radius: 4px;
    margin-bottom: 5px;
    background: white;
    padding: 2px;
}

.ez1n06hl span {
    font-size: 12px;
    display: block;
}

.mcjn1j {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    font-size: 13px;
}

/* 视频模态框 */
.rffuvkk {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.9);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.rffuvkk.c6ah77j {
    opacity: 1;
    visibility: visible;
}

.pd3ryis {
    width: 90%;
    max-width: 1000px;
    position: relative;
}

.71ylb {
    position: absolute;
    top: -40px;
    right: 0;
    background: transparent;
    border: none;
    color: white;
    font-size: 36px;
    cursor: pointer;
}

.97vi8b {
    width: 100%;
    padding-top: 56.25%;
    background: #000;
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
}

.chy5q9 {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
}

.j5t3za9 {
    width: 50px;
    height: 50px;
    border: 3px solid rgba(255,255,255,0.3);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 20px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 响应式设计 */
@media (max-width: 992px) {
    .ay354a0 {
        grid-template-columns: 1fr 1fr;
    }
    .ei267i {
        font-size: 36px;
    }
}

@media (max-width: 768px) {
    .wasbvcc, .cxqms0wt {
        display: none;
    }
    
    .4owuz86i {
        display: block;
    }
    
    .ei267i {
        font-size: 28px;
    }
    
    .4yxr6m {
        font-size: 16px;
    }
    
    .um2wf14 {
        flex-direction: column;
    }
    
    .ay354a0 {
        grid-template-columns: 1fr;
    }
    
    .mcjn1j {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }
}