/* =================== 头部与导航栏样式 =================== */
/* ==========================================================================
   Header Contact Highlights (Brand Colors)
   ========================================================================== */

.contact-highlight .contact-name {
    background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
    text-shadow: 0px 2px 4px rgba(254, 207, 81, 0.2);
}

.contact-highlight .contact-phone {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
}

.contact-highlight .contact-phone .phone-number {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
    text-shadow: 0px 2px 4px rgba(246, 132, 37, 0.2);
}

.top-phone-btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    text-decoration: none;
    color: #fff;
    background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
    box-shadow: 0 4px 12px rgba(247, 137, 46, 0.35);
    animation: incomingCallPulse 4.5s infinite;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.top-phone-btn i {
    font-size: 0.82rem;
    animation: incomingCallShake 4.5s infinite;
}

.top-phone-btn::before {
    content: '';
    position: absolute;
    inset: -3px;
    border-radius: 50%;
    border: 2px solid rgba(247, 137, 46, 0.55);
    transform: scale(0.7);
    opacity: 0;
    animation: incomingCallRing 4.5s infinite;
}

.top-phone-btn:hover {
    transform: translateY(-1px) scale(1.05);
    box-shadow: 0 7px 18px rgba(247, 137, 46, 0.5);
}

@keyframes incomingCallPulse {
    0%, 68%, 100% { box-shadow: 0 4px 12px rgba(247, 137, 46, 0.35); }
    8%, 12% { box-shadow: 0 6px 18px rgba(247, 137, 46, 0.55); }
}

@keyframes incomingCallRing {
    0%, 6%, 68%, 100% { transform: scale(0.7); opacity: 0; }
    10% { transform: scale(1.15); opacity: 0.45; }
    16% { transform: scale(1.42); opacity: 0; }
}

@keyframes incomingCallShake {
    0%, 6%, 68%, 100% { transform: rotate(0deg); }
    8% { transform: rotate(-14deg); }
    10% { transform: rotate(14deg); }
    12% { transform: rotate(-10deg); }
    14% { transform: rotate(8deg); }
    16% { transform: rotate(0deg); }
}

/* 导航栏样式 */

.navbar {
    box-shadow: none;
    padding: 15px 0;
    background-color: white;
    transition: all 0.3s ease;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

@media (max-width: 991px) {
    .navbar {
        position: fixed;
    }
}

.home-page .navbar {
    background-color: transparent !important;
    border-bottom: none;
}

.navbar.navbar-scrolled {
    background-color: rgba(255, 255, 255, 0.9) !important;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 10px 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

@media (max-width: 991px) {
    .navbar.navbar-scrolled {
        background-color: rgba(255, 255, 255, 0.95) !important;
    }
}

.home-page .navbar:not(.navbar-scrolled) .brand-text,
.home-page .navbar:not(.navbar-scrolled) .nav-link,
.home-page .navbar:not(.navbar-scrolled) .contact-name,
.home-page .navbar:not(.navbar-scrolled) .contact-phone {
    color: white !important;
}

.home-page .navbar:not(.navbar-scrolled) .nav-link.active,
.home-page .navbar:not(.navbar-scrolled) .nav-link:hover {
    color: var(--primary-color) !important;
}

/* 自定义双行导航样式 */

.custom-header {
    padding: 0 !important;
}

.custom-header.navbar-scrolled {
    padding: 0 !important;
}

.custom-header .header-top-row {
    padding-top: 12px !important;
    padding-bottom: 0px !important;
    transition: all 0.3s ease;
    position: relative;
}

.custom-header.navbar-scrolled .header-top-row {
    padding-top: 5px !important;
    padding-bottom: 0px !important;
}

.header-top-row .header-title {
    position: absolute;
    left: 50%;
    top: calc(50% + 7px);
    transform: translate(-50%, -50%);
    margin: 0;
    width: max-content;
    line-height: 1;
}

.header-top-row .header-contact {
    position: absolute;
    right: calc(var(--bs-gutter-x, 1.5rem) * 0.5);
    top: 50%;
    transform: translateY(-25%);
}

.custom-header .header-bottom-row {
    padding-bottom: 10px;
    transition: all 0.3s ease;
}

@media (max-width: 991px) {
    .custom-header .header-bottom-row {
        position: absolute;
        width: 100%;
        max-width: 100% !important;
        left: 0;
        top: 100%;
        padding-bottom: 0 !important;
    }
}

.custom-header.navbar-scrolled .header-bottom-row {
    padding-bottom: 5px;
}

.header-title {
    background: linear-gradient(to right, var(--primary-light), var(--primary-color), var(--primary-light));
    background-size: 200% auto;
    color: transparent;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 800;
    font-size: 1.8rem;
    letter-spacing: 2px;
    filter: drop-shadow(0 2px 4px rgba(247, 137, 46, 0.4));
    position: relative;
    overflow: hidden;
}

@media (max-width: 991px) {
    .header-top-row {
        position: relative; /* 确保父容器是 relative */
    }
    .custom-header .header-top-row {
        padding-top: 8px !important;
        padding-bottom: 8px !important;
        display: grid;
        grid-template-columns: auto minmax(0, 1fr) auto;
        align-items: center;
        column-gap: 8px;
    }
    .custom-header.navbar-scrolled .header-top-row {
        padding-top: 6px !important;
        padding-bottom: 6px !important;
    }
    .custom-header .navbar-brand {
        flex: none;
    }
    .header-top-row .navbar-toggler {
        margin-top: 0 !important;
        margin-bottom: 0 !important;
        margin-left: 0 !important;
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }
    .header-title {
        font-size: 1.55rem; /* 再大一点 */
        letter-spacing: 0.5px;
        white-space: nowrap; /* 移动端防止换行 */
        /* 在移动端放入中间列，使文本在 Logo 与菜单按钮之间水平居中 */
        position: static !important;
        left: auto !important;
        top: auto !important;
        transform: none !important;
        margin: 0 !important;
        width: 100%;
        text-align: center;
        overflow: hidden;
        text-overflow: ellipsis;
        z-index: 10;
    }
}

@media (max-width: 576px) {
    .header-title {
        font-size: 1.3rem; /* 再大一点 */
        letter-spacing: 0;
        position: static !important;
        left: auto !important;
        top: auto !important;
        transform: none !important;
        margin: 0 !important;
        z-index: 10;
    }
    
    .navbar-brand .brand-logo {
        height: 32px !important; /* 缩小logo */
    }
}

@media (max-width: 400px) {
    .header-title {
        font-size: 1.15rem; /* 再大一点 */
        position: static !important;
        left: auto !important;
        top: auto !important;
        transform: none !important;
        margin: 0 !important;
        z-index: 10;
    }
    .navbar-brand .brand-logo {
        height: 28px !important;
    }
}

.header-title::after {
    content: '';
    position: absolute;
    top: 0;
    left: -150%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        rgba(255, 255, 255, 0.6),
        rgba(255, 255, 255, 0.2),
        transparent
    );
    transform: skewX(-25deg);
    animation: headerLightRunSweep 5s infinite;
}

@keyframes headerLightRunSweep {
    0% { left: -150%; }
    20% { left: 150%; }
    100% { left: 150%; }
}

.contact-name {
    color: var(--dark-color);
    transition: color 0.3s ease;
}

.contact-phone {
    color: var(--primary-color);
    transition: color 0.3s ease;
}

.home-page .navbar:not(.navbar-scrolled) .nav-link.active::after,
.home-page .navbar:not(.navbar-scrolled) .nav-link:hover::after {
    background: var(--primary-color);
}

.navbar-brand {
    display: flex;
    align-items: center;
    min-width: 0; /* 允许flex项目收缩 */
}

.navbar-brand .brand-logo {
    height: 40px;
    border-radius: 8px;
}

.brand-text {
    margin-left: 12px;
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--dark-color);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex-shrink: 0; /* 防止文字收缩 */
}

.navbar-nav .nav-link {
    font-size: 19px;
    font-weight: 500;
    margin: 0 4px;
    position: relative;
    color: var(--dark-color);
}

.navbar-nav .nav-link.active::after,
.navbar-nav .nav-link:hover::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--primary-color);
}

.navbar-nav .nav-link.active {
    color: var(--primary-color) !important;
}

/* 移动端菜单按钮优化 */

.navbar-toggler {
    border: none !important;
    padding: 8px !important;
    border-radius: 8px !important;
    transition: all 0.3s ease !important;
    outline: none !important;
    box-shadow: none !important;
    background: transparent !important;
}

.navbar-toggler:hover {
    background-color: rgba(247, 137, 46, 0.08) !important;
}

.navbar-toggler:not(.collapsed) {
    background-color: rgba(247, 137, 46, 0.1) !important;
}

.navbar-toggler:active {
    transform: scale(0.92);
}

.navbar-toggler-icon {
    width: 24px !important;
    height: 24px !important;
    transition: all 0.3s ease;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28247, 137, 46, 0.8%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
}

.project-header {
    padding: 20px;
    border-bottom: 1px solid #eee;
    background: rgba(0, 134, 255, 0.05);
}

.project-header h3 {
    margin: 0 0 15px 0;
    color: var(--dark-color);
}

/* 导航菜单悬停效果 */

.navbar-nav .nav-link {
    transition: color 0.3s ease;
    position: relative;
}

.navbar-nav .nav-link:hover,
.home-page .navbar .navbar-nav .nav-link:hover {
    color: var(--primary-color) !important;
}

/* 移除 1px 浮动效果，改用底部线条由中间向两边展开的交互 */

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateX(-50%);
}

.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after,
.home-page .navbar .navbar-nav .nav-link:hover::after,
.navbar-scrolled .navbar-nav .nav-link:hover::after {
    width: 100% !important;
    left: 50% !important;
    transform: translateX(-50%) !important;
    background-color: var(--primary-color) !important;
}

.brand-text {
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), color 0.3s ease, text-shadow 0.3s ease; /* 明确指定过渡属性，避免 font-weight 突变 */
    display: inline-block;
    transform-origin: left center;
}

/* ==========================================================================
   从style.css提取的顶部菜单及导航栏响应式样式
   ========================================================================== */

@media (max-width: 991px) {
    body {
        padding-top: 70px;
    }
    .home-page {
        padding-top: 0 !important;
    }
    
    .navbar-collapse {
        position: absolute;
        top: calc(100% + 5px);
        left: 15px !important;
        right: 15px !important;
        width: auto !important;
        transform: none !important;
        z-index: 1005;
        max-height: calc(100vh - 100px);
        overflow-y: auto;
        /* 修复折叠动画卡顿：将背景和内边距移至子元素 */
        background: transparent !important;
        box-shadow: none !important;
        padding: 0 !important;
    }
    
    /* 修复 Bootstrap .collapsing 类在过渡时的定位跳动问题 */
    .navbar .collapsing {
        position: absolute;
        top: calc(100% + 5px);
        left: 15px !important;
        right: 15px !important;
        width: auto !important;
        z-index: 1005;
        background: transparent !important;
    }
    
    .navbar-collapse .navbar-nav,
    .navbar .collapsing .navbar-nav {
        background-color: rgba(26, 22, 20, 0.96) !important;
        background: rgba(26, 22, 20, 0.96) !important;
        -webkit-backdrop-filter: blur(15px) !important;
        backdrop-filter: blur(15px) !important;
        margin-top: 0;
        padding: 20px 30px;
        border-radius: 16px;
        box-shadow: 0 10px 30px rgba(0,0,0,0.3) !important;
    }
    
    .home-page .navbar:not(.navbar-scrolled) .navbar-collapse .navbar-nav,
    .home-page .navbar:not(.navbar-scrolled) .collapsing .navbar-nav {
        background-color: rgba(26, 22, 20, 0.96) !important;
        background: rgba(26, 22, 20, 0.96) !important;
        -webkit-backdrop-filter: blur(15px) !important;
        backdrop-filter: blur(15px) !important;
    }
    
    .navbar-nav .nav-item {
        border-bottom: 1px solid rgba(255, 255, 255, 0.15);
    }
    
    .navbar-nav .nav-item:last-child {
        border-bottom: none;
    }
    
    .navbar-nav .nav-link {
        padding: 16px 0;
        margin: 0;
        color: #ffffff !important;
        font-size: 1.15rem;
        font-weight: 400;
        text-align: left;
    }
    
    .navbar-nav .nav-link.active,
    .navbar-nav .nav-link:hover {
        color: var(--primary-color) !important;
    }
    
    .navbar-nav .nav-link::after {
        display: none !important;
    }
    
    .navbar .btn-primary {
        width: 100%;
        margin-top: 15px;
        margin-left: 0 !important;
    }
}

@media (max-width: 768px) {
    .navbar-brand {
        flex: 1;
    }
    
    .brand-text {
        font-size: 1.4rem;
        margin-left: 8px;
    }
    
    body {
        padding-top: 70px;
    }
}

@media (max-width: 576px) {
    .navbar-brand .brand-logo {
        height: 30px;
    }
    
    .brand-text {
        font-size: 1.3rem;
        margin-left: 6px;
    }
    
    body {
        padding-top: 65px;
    }
}