/* ===== åŸºç¡€æ ·å¼é‡ç½® ===== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #c41e3a;
    --primary-light: #e63950;
    --primary-dark: #a01830;
    --dark: #1a1a1a;
    --text-primary: #222222;
    --text-secondary: #555555;
    --text-muted: #888888;
    --bg-white: #ffffff;
    --bg-light: #f8f9fa;
    --bg-soft: #f0f2f5;
    --border-color: rgba(0, 0, 0, 0.08);
    --border-dark: rgba(0, 0, 0, 0.12);
    --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-medium: 0 8px 30px rgba(0, 0, 0, 0.12);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.7;
    color: var(--text-primary);
    background-color: var(--bg-white);
}

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

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

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== é€šç”¨æŒ‰é’®æ ·å¼ ===== */
.btn-works {
    display: inline-block;
    padding: 10px 24px;
    background: var(--primary);
    color: #fff !important;
    /* 确保文字始终为白色 */
    font-size: 0.85rem;
    font-weight: 500;
    border-radius: 25px;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    text-align: center;
}

.btn-works:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(196, 30, 58, 0.3);
}

/* ===== 页首导航 ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--bg-white);
    box-shadow: 0 1px 0 var(--border-color);
    transition: var(--transition);
}

.header.scrolled {
    box-shadow: var(--shadow-soft);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 1px;
}

.logo span {
    color: var(--primary);
}

.nav-menu {
    display: flex;
    gap: 35px;
}

.nav-menu a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    padding: 8px 0;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

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

.nav-menu a:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    width: 26px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
}

/* ===== 英雄区域 ===== */
.hero {
    padding: 140px 0 100px;
    background: linear-gradient(135deg, var(--bg-light) 0%, var(--bg-soft) 100%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text {
    max-width: 550px;
}

.hero-label {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(196, 30, 58, 0.1);
    color: var(--primary);
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 20px;
}

.hero-text h1 {
    font-size: 3.2rem;
    font-weight: 700;
    line-height: 1.15;
    color: var(--text-primary);
    margin-bottom: 15px;
}

.hero-text h1 span {
    display: block;
    font-size: 1.8rem;
    font-weight: 400;
    color: var(--text-secondary);
    margin-top: 8px;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 35px;
    line-height: 1.8;
}

.hero-stats {
    display: flex;
    gap: 40px;
    padding-top: 30px;
    border-top: 1px solid var(--border-dark);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image-placeholder {
    width: 100%;
    max-width: 450px;
    aspect-ratio: 3/4;
    background: linear-gradient(135deg, #e8e8e8 0%, #d8d8d8 100%);
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: var(--text-muted);
}

/* ===== 合作媒体 ===== */
.partners {
    padding: 50px 0;
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
}

.partners-inner {
    display: flex;
    align-items: center;
    gap: 40px;
}

.partners-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
    white-space: nowrap;
}

.partners-grid {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex: 1;
    gap: 20px;
}

.partner-item {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 15px;
    height: 90px;
}

.partner-item img {
    width: 200px;
    height: 150px;
    object-fit: contain;
    transition: var(--transition);
}

.partner-item:hover img {
    opacity: 1;
    filter: grayscale(0%);
}

/* ===== é€šç”¨æ ç›®æ ‡é¢˜ ===== */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 45px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--bg-soft);
}

.section-header h2 {
    font-size: 1.6rem;
    font-weight: 600;
    color: var(--text-primary);
}

.section-header .section-number {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* ===== ç®€ä»‹æ ç›® ===== */
.about {
    padding: 100px 0;
    background: var(--bg-white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.6fr;
    gap: 60px;
    align-items: start;
}

.about-image img {
    width: 100%;
    border-radius: 15px;
    box-shadow: var(--shadow-medium);
}

.about-content h3 {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 25px;
    color: var(--text-primary);
}

.about-content h3 span {
    color: var(--primary);
}

.about-text {
    color: var(--text-secondary);
    margin-bottom: 18px;
    text-align: justify;
}

.about-highlights {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 40px;
    padding-top: 40px;
    border-top: 1px solid var(--border-color);
}

.highlight-box {
    text-align: center;
    padding: 25px 15px;
    background: var(--bg-light);
    border-radius: 12px;
}

.highlight-box .value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
}

.highlight-box .desc {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ===== 基本信息 ===== */
.info {
    padding: 100px 0;
    background: var(--bg-light);
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.info-item {
    background: var(--bg-white);
    padding: 25px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.info-item .label {
    font-size: 0.75rem;
    color: var(--primary);
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: 8px;
}

.info-item .value {
    font-size: 0.95rem;
    color: var(--text-primary);
    font-weight: 500;
}

/* ===== å†™çœŸæ ç›® ===== */
.gallery {
    padding: 100px 0;
    background: var(--bg-white);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 15px;
}

.gallery-item img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    transition: var(--transition);
}

.gallery-item:hover img {
    transform: scale(1.05);
}

.gallery-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.7) 0%, transparent 50%);
    display: flex;
    align-items: flex-end;
    padding: 25px;
    opacity: 0;
    transition: var(--transition);
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-overlay span {
    color: #fff;
    font-size: 0.9rem;
}

/* ===== 从业经历 (时间轴) ===== */
.career {
    padding: 100px 0;
    background: var(--bg-light);
}

.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 100px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border-dark);
}

.timeline-item {
    display: flex;
    gap: 40px;
    padding: 25px 0;
    position: relative;
}

.timeline-year {
    width: 80px;
    text-align: right;
    flex-shrink: 0;
}

.timeline-year span {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.timeline-dot {
    position: absolute;
    left: 100px;
    top: 32px;
    width: 14px;
    height: 14px;
    background: var(--bg-white);
    border: 3px solid var(--primary);
    border-radius: 50%;
    transform: translateX(-6px);
}

.timeline-content {
    flex: 1;
    background: var(--bg-white);
    padding: 25px 30px;
    border-radius: 12px;
    box-shadow: var(--shadow-soft);
    margin-left: 20px;
}

/* ===== 社交媒体 ===== */
.social {
    padding: 100px 0;
    background: var(--bg-white);
}

.social-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}

.social-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 30px 20px;
    background: var(--bg-light);
    border-radius: 15px;
    text-align: center;
}

.social-card .icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    margin-bottom: 15px;
}

.bookme-container {
    padding-bottom: 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.bookme-container .items {
    width: 300px;
    gap: 10px;
    flex-grow: 1;
}

.bookme-container .items .text {
    font-weight: 700;
    margin-top: 10px;
}

.bookme-form {
    display: flex;
    flex-direction: column;
    padding-bottom: 15px;
}

input,
select,
textarea {
    padding: 15px;
    outline: none;
    border-radius: 5px;
    border: #555 1px solid;
    background: transparent;
    font-size: 16px;
}

.text-area {
    height: 100px;
}

button {
    padding: 15px 50px;
    background: #c41e3a;
    color: #ffffff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

.social-card .icon svg {
    width: 26px;
    height: 26px;
    fill: #fff;
}

.social-card.instagram .icon {
    background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);
}

.social-card.twitter .icon {
    background: #1da1f2;
}

.social-card.facebook .icon {
    background: #1877f2;
}

.social-card.tiktok .icon {
    background: #000000;
}

.social-card.youtube .icon {
    background: #ff0000;
}

/* ===== 页脚与语言选择 ===== */
.language-selector {
    padding: 40px 0;
    background: var(--bg-soft);
    border-top: 1px solid var(--border-color);
}

.language-content {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.language-btn {
    display: inline-flex;
    /* è®©æŒ‰é’®æœ¬èº«å¯ä»¥å¹¶æŽ’ï¼Œå†…éƒ¨å…ƒç´ ä¹Ÿå¹¶æŽ’ */
    align-items: center;
    /* 垂直居中对齐图片和文字 */
    gap: 8px;
    /* 在图片和文字之间留出间距 */
    padding: 8px 16px;
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    transition: var(--transition);
    text-decoration: none;
    color: var(--text-primary);
}

.footer {
    padding: 0px 0 30px;
    background: var(--dark);
    color: #fff;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 50px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.8rem;
}

/* ===== 响应式适配 (重要修改) ===== */

/* 默认显示逻辑 */
.mobile-only {
    display: none;
}

@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-text {
        max-width: 100%;
    }

    .hero-image {
        order: -1;
    }

    .hero-stats {
        justify-content: center;
    }

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

    .info-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {

    /* 1. 导航菜单适配 */
    .nav-menu {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--bg-white);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 25px;
        transform: translateX(100%);
        transition: var(--transition);
        z-index: 1000;
    }

    .nav-menu.active {
        transform: translateX(0);
    }

    .nav-toggle {
        display: flex;
        z-index: 1001;
    }

    /* 2. 按钮显示逻辑调整 */
    /* éšè—é¡¶éƒ¨å¯¼èˆªæ¡é‡Œçš„ç‹¬ç«‹æŒ‰é’®ï¼Œå› ä¸ºå®ƒåœ¨æ‰‹æœºä¸Šä¼šå’ŒLogo撞在一起 */
    .nav>.btn-works.desktop-only {
        display: none;
    }

    /* 显示菜单内部的按钮项 */
    .nav-menu .mobile-only {
        display: block;
    }

    .nav-menu .btn-works {
        width: 200px;
        padding: 12px;
    }

    /* 3. 英雄区域按钮适配 */
    .hero {
        padding: 100px 0 60px;
    }

    .hero-text h1 {
        font-size: 2.2rem;
    }

    .hero-stats {
        flex-direction: column;
        align-items: center;
        gap: 20px;
    }

    /* 确保首页中间的按钮在手机上显眼且居中 */
    .hero-stats .btn-works {
        width: 100%;
        max-width: 280px;
        padding: 14px;
        font-size: 1rem;
    }

    /* 4. 其他组件适配 */
    .partners-inner {
        flex-direction: column;
    }

    .partners-grid {
        flex-wrap: wrap;
        justify-content: center;
    }

    .partner-item {
        flex: 0 0 45%;
        height: 60px;
    }

    .about-highlights {
        grid-template-columns: 1fr;
    }

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

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

    .social-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .timeline::before,
    .timeline-dot {
        display: none;
    }

    .timeline-item {
        flex-direction: column;
        gap: 10px;
    }

    .timeline-year {
        text-align: left;
    }

    .timeline-content {
        margin-left: 0;
    }

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

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

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