/* =================================================================
= 核心 CSS：全局样式
=================================================================
*/

:root {
    --tb--main: #007bff;
    --tb--base: #333;
    --tb--dark: #202935;
    --tb--white: #fff;
    --tb--bdbg: #f4f4f4;
    --tb--tint: #fbfbfb;
    --tb--line: #f3f3f3;
    --tb--gray: #999
}

.darking:root {
    --tb--base: #ccc;
    --tb--dark: #14181b;
    --tb--white: #14181b;
    --tb--bdbg: #0c0f14;
    --tb--tint: #1d2025;
    --tb--line: #1d2025;
    --tb--gray: #555
}

.container::after {
    display: block;
    clear: both;
    content: ""
}

*,
*:before,
*:after {
    box-sizing: border-box
}

html {
    -webkit-text-size-adjust: 100%
}

a {
    color: var(--tb--base);
    text-decoration: none;
    outline: 0
}

a:hover {
    color: var(--tb--main);
    text-decoration: none
}

a:focus {
    outline: 0;
    text-decoration: none
}

video,
embed,
iframe,
img {
    display: block;
    max-width: 100%
}

ul,
ol {
    list-style: none;
    margin: 0;
    padding: 0
}

h1,
h2,
h3,
h4,
h5,
h6 {
    margin: 0
}

p {
    margin-top: 0
}

button,
input,
select,
textarea {
    font-family: inherit;
    font-size: 100%;
    margin: 0
}

button,
input {
    overflow: visible
}

button,
select {
    text-transform: none
}

button,
[type=button],
[type=reset],
[type=submit] {
    -webkit-appearance: button;
    -moz-appearance: button;
    appearance: button
}

body {
    position: relative;
    margin: 0;
    font-size: 14px;
    line-height: 1.5;
    font-family: -apple-system, BlinkMacSystemFont, "Microsoft Yahei", MiSans, "HarmonyOS Sans", "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
    color: var(--tb--base);
    background-color: var(--tb--bdbg);
    overflow-x: hidden;
    left: 0;
    transition: left .3s ease-in-out
}

.btn {
    display: inline-block;
    font-weight: normal;
    text-align: center;
    vertical-align: middle;
    -webkit-user-select: none;
    -moz-user-select: none;
    user-select: none;
    color: var(--tb--base);
    background-color: #eee;
    border: 1px solid rgba(0, 0, 0, 0);
    padding: 8px 24px;
    font-size: 14px;
    line-height: 1.5;
    border-radius: 6px;
    text-decoration: none !important;
    transition: color .15s ease-in-out, background-color .15s ease-in-out, border-color .15s ease-in-out
}

.btn:hover {
    color: var(--tb--base);
    background-color: #e2e2e2
}

.btn:focus {
    outline: 0
}

.btn:not(:disabled):not(.disabled) {
    cursor: pointer
}


.site-header {
    padding: 15px 0; /* 15px 上下内边距, 0 左右 */
    background-color: var(--tb--white);
    border-bottom: 1px solid var(--tb--line);
    margin-bottom: 20px;
}

.header-container {
    display: flex;
    /* * 核心修改：
     * 将 'space-between' (两端对齐) 改为 'center' (居中)
    */
    justify-content: center; /* 核心：logo 居中 */
    align-items: center;
    /* 确保在 container-fluid 内部时也能正常工作 */
    margin: 0 auto;
    max-width: 1240px;
    /* 增加左右内边距，防止内容贴边 */
    padding: 0 10px; 
}

.logo-area {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-image {
    height: 32px; /* 您可以根据logo大小调整这个高度 */
    width: auto;
    margin-right: 0px;
    border-radius: 4px; /* 可选：给 logo 加个小圆角 */
}

.brand {
    font-size: 14px;
    float: left;
    line-height: 15px;
    color: #bbb;
    padding-left: 10px;
    position: relative;
    top: 1px;
    border-left: 2px solid #eaeaea;
    margin-left: 10px;
    overflow: hidden;
    height: 30px
}

body {
    background-color: var(--tb--white);
}

.container {
    position: relative;
    margin: 0 auto;
    padding: 0px;
    max-width: 1240px;
}

.container-fluid {
    padding-right: 15px;
    padding-left: 15px;
    margin-right: auto;
    margin-left: auto;
}

.smartideo {
    z-index: 0;
    text-align: center;
    background: #000;
    line-height: 0;
    text-indent: 0;
}

/* * ================= 
 * 播放器优化核心
 * =================
*/

.smartideo .player {
    width: 100%;
    overflow: hidden;
    position: relative;
    background: #000;
    
    /* 优化：设置16:9的宽高比 */
    aspect-ratio: 16 / 9;
    height: auto; 

    /* 优化：限制最大高度，防止在超宽桌面上过大 */
    max-height: 70vh; 
}

.smartideo embed,
.smartideo iframe {
    padding: 0;
    margin: 0;
    
    /* 优化：使 iframe 填满父容器 */
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none; /* 替代已弃用的 frameborder="no" */
}


/* logo平台 */
.logo-box {
    text-align: center;
}

.title-tit {
    font-family: "微软雅黑";
    padding: 20px 0 10px;
}

.title-tit h3 {
    display: inline-block;
    border-left: 5px solid var(--tb--main);
    padding-left: 10px;
    font-size: 16px;
    line-height: 1rem;
    font-weight: bold;
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin-bottom: 5px;
}

.logo-lie {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 5px;
    padding: 4px 10px;
    border-radius: 4px;
    border: 1px solid var(--tb--line);
    background: #fbfbfb;
}

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

/* * 优化：移动端优先 (Mobile-First)
 * .col-xs-4 (3列) 现在是默认样式，不需要媒体查询
*/
.col-xs-4 {
    flex: 0 0 33.333333%;
    max-width: 33.333333%;
}


/* 输入框表单 */
.url-text {
    height: 40px;
    color: var(--tb--base);
    border: 1px solid var(--tb--tint);
    background-color: var(--tb--bdbg);
    border-right: 0px;
    flex: 1;
    padding-left: 10px;
    min-width: 0;
}

.url-box {
    padding: 10px 5px;
    border-top: 1px solid var(--tb--line);
    border-left: 1px solid var(--tb--line);
    border-right: 1px solid var(--tb--line);
    background: var(--tb--tint);
}

.url-box .input-group-addon {
    padding: 0;
    border: none;
}

input#url:focus {
    border-top-left-radius: 4px;
    border-bottom-left-radius: 4px;
}

.url-text:focus {
    border-color: var(--tb--main);
    outline: 0;
    -webkit-box-shadow: inset 0 1px 1px rgba(0, 0, 0, .075), 0 0 8px rgba(102, 175, 233, .6);
    box-shadow: inset 0 1px 1px rgba(0, 0, 0, .075), 0 0 8px rgba(102, 175, 233, .6);
}

.btn-play {
    height: 40px;
    padding: 0 40px;
    background: var(--tb--main);
    border: none;
    color: #fff;
    transition: all 0.3s;
    border-radius: 0px;
}

.btn-play:active {
    color: #0093ff;
    background: -webkit-linear-gradient(left, #ffb199, #fa709a);
    background: -o-linear-gradient(left, #ffb199, #fa709a);
    background: -moz-linear-gradient(left, #ffb199, #fa7a);
    background: linear-gradient(left, #ffb199, #fa709a);
}

.btn-play:hover {
    color: #fff;
    background-color: var(--tb--main);
}

.btn-play:focus {
    outline-style: none;
    color: #FFFFFF;
}

.url-c {
    padding: 0 15px;
}

/* (已移除 .error-text 规则) */

.tit-gg {
    padding-left: 10px;
    line-height: 35px;
    vertical-align: middle;
    text-overflow: ellipsis;
    white-space: nowrap;
    word-wrap: normal;
    border-bottom: 1px solid var(--tb--line);
    border-left: 1px solid var(--tb--line);
    border-right: 1px solid var(--tb--line);
    background: var(--tb--tint);
}

.input-group {
    display: flex;
    overflow: hidden;
    border-radius: 4px;
}

.form-control {
    display: block;
    width: 100%;
}

/* 页脚 */
.simple-footer {
    padding: 20px;
    background-color: var(--tb--dark);
    color: var(--tb--gray);
    text-align: center;
    margin-top: 20px;
    font-size: 14px;
}

.simple-footer p {
    margin: 0;
}


/* * 手机小屏 ( < 600px )
 * 主要调整字体大小和页头
*/
@media (max-width: 600px) {
    .title-tit h3 {
        font-size: 14px;
    }

    .logo-image {
        margin-right: 0; /* 标语隐藏了，logo 也不需要右边距了 */
    }

    .site-header {
        padding: 10px 0; /* 手机上页头高度小一点 */
        margin-bottom: 0px;
    }
}

/* * 手机大屏 ( < 767px )
 * 主要调整表单高度
*/
@media (max-width: 767px) {

    img.logo-image {
        height: 24px;
    }
    .url-text {
        height: 35px;
    }

    .btn-play {
        height: 35px;
        padding: 0 10px;
    }

    .url-c {
        padding: 0px;
    }

    .video-box {
        padding-left: 0px;
        padding-right: 0px;
    }
}

/* * 桌面 ( 992px 及以上 )
 * Logo 网格变为 6 列
*/
@media (min-width: 992px) {
    .col-lg-2 {
        flex: 0 0 16.666667%;
        max-width: 16.666667%;
    }
}

@media (min-width: 1024px) {
   .header-container {
        justify-content: flex-start; 
    }
}

@media(max-width: 1023px) {
    .brand {
        display:none
    }
}