/* ========== 全局变量 ========== */
:root {
    --primary: #000000;
    --accent: #4a9eff;
    --bg: #ffffff;
    --surface: rgba(0, 0, 0, 0.02);
    --text: #000000;
    --text-secondary: rgba(0, 0, 0, 0.6);
    --border-subtle: rgba(0, 0, 0, 0.08);
}
.text-accent { color: var(--accent); }

/* ========== 基础重置 ========== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", "PingFang SC", sans-serif;
    background: var(--bg);
    color: var(--text);
    overflow-x: hidden;
    letter-spacing: -0.01em;
    overscroll-behavior-y: none;
    
    /* ====== 新增：启用 Flexbox 布局 ====== */
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ========== 导航栏 ========== */
.navbar {
    position: fixed;
    top: 0; width: 100%; z-index: 100;
    background: rgba(255, 255, 255, 0.9);
    padding: 24px 0;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    animation: fadeInDown 0.8s ease 0.2s both;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}
@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}
.navbar.scrolled {
    backdrop-filter: blur(20px) saturate(150%);
    -webkit-backdrop-filter: blur(20px) saturate(150%);
    box-shadow: 0 2px 12px rgba(0,0,0,0.05);
}
/* 首页导航栏透明 */
.home-page .navbar {
    background: transparent;
    border-bottom: 1px solid transparent;
}
.home-page .navbar.scrolled {
    background: rgba(255, 255, 255, 0.9);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}
.navbar-brand {
    font-size: 1.4rem; font-weight: 600; letter-spacing: 8px;
    color: var(--text) !important; text-decoration: none;
    margin-right: 64px; margin-left: -250px;
    text-transform: uppercase; transition: opacity 0.3s ease;
}
.navbar-brand:hover { opacity: 0.8; }
.navbar-nav {
    display: flex; align-items: center; gap: 48px; list-style: none;
}
.nav-link {
    position: relative;
    color: var(--text-secondary) !important;
    font-size: 0.85rem; font-weight: 500; letter-spacing: 2px;
    text-decoration: none; text-transform: uppercase;
    padding: 4px 0 !important; transition: color 0.4s ease;
}
.nav-link::after {
    content: ''; position: absolute; bottom: -2px; left: 50%;
    width: 0; height: 1px; background: var(--accent);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateX(-50%);
}
.nav-link:hover { color: var(--accent) !important; }
.nav-link:hover::after { width: 100%; }
.navbar-right { display: flex; align-items: center; gap: 32px; }

/* ========== 下拉菜单 ========== */
.talent-dropdown .dropdown-toggle::after {
    display: inline-block; margin-left: 0.255em; vertical-align: 0.255em;
    content: ""; border-top: 0.3em solid;
    border-right: 0.3em solid transparent; border-bottom: 0; border-left: 0.3em solid transparent;
}
.talent-menu {
    width: 700px; max-width: 90vw; padding: 0;
    background: rgba(255, 255, 255, 0.96); backdrop-filter: blur(30px);
    border: 1px solid rgba(0,0,0,0.08); border-radius: 16px;
    box-shadow: 0 12px 40px rgba(0,0,0,0.15); animation: fadeIn 0.2s ease;
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}
.talent-industries {
    border-right: 1px solid rgba(0,0,0,0.06); max-height: 420px;
    overflow-y: auto; padding: 8px 0;
}
.talent-industry-item {
    background: transparent; color: rgba(0,0,0,0.7); border: none;
    padding: 10px 20px; cursor: pointer; transition: background 0.25s, color 0.25s;
    font-size: 0.9rem; border-radius: 0;
}
.talent-industry-item:hover,
.talent-industry-item.active { background: rgba(74, 130, 220, 0.15); color: var(--accent); }
.talent-subcategories { padding: 16px 20px; max-height: 420px; overflow-y: auto; }
.talent-sub-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px 12px; }
.talent-sub-item {
    display: block; color: rgba(0,0,0,0.7); text-decoration: none;
    padding: 7px 12px; border-radius: 8px; font-size: 0.85rem;
    transition: background 0.25s, color 0.25s;
}
.talent-sub-item:hover { background: rgba(74, 130, 220, 0.15); color: var(--accent); }
.talent-footer {
    padding: 12px 20px; border-top: 1px solid rgba(0,0,0,0.06);
    text-align: center; font-size: 0.85rem;
}
.talent-footer a { color: var(--accent); text-decoration: none; transition: color 0.2s; }
.talent-footer a:hover { color: #0056b3; text-decoration: underline; }

/* 人才卡片 */
.talent-card {
    background: var(--surface); border: 1px solid var(--border-subtle);
    border-radius: 12px; transition: all 0.3s; color: var(--text);
}
.talent-card:hover { background: rgba(0,0,0,0.03); border-color: var(--accent); transform: translateY(-2px); }
.talent-industry-link {
    background: transparent; color: var(--text-secondary); border: none;
    border-radius: 8px; margin-bottom: 4px;
}
.talent-industry-link.active { background: rgba(74,158,255,0.2); color: var(--accent); }

/* ========== 搜索框 ========== */
.search-box {
    padding: 8px 16px; border-radius: 20px;
    border: 1px solid rgba(0, 0, 0, 0.15); background: rgba(0,0,0,0.02);
    color: var(--text); outline: none; width: 180px;
    font-size: 0.85rem; transition: border-color 0.3s;
}
.search-box:focus { border-color: var(--accent); }
.search-box::placeholder { color: rgba(0, 0, 0, 0.3); }

/* ========== 图标按钮 ========== */
.icon-btn {
    position: relative; color: var(--text-secondary);
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: flex; align-items: center; padding: 8px; border-radius: 12px;
}
.icon-btn:hover { color: var(--accent); background: rgba(0,0,0,0.05); transform: scale(1.1); }
.icon-btn:active { transform: scale(0.9); transition: transform 0.1s; }
.icon-btn svg { width: 20px; height: 20px; fill: currentColor; }

/* ========== 语言切换 ========== */
.lang-switch {
    color: var(--text-secondary) !important; font-size: 0.75rem; letter-spacing: 1px;
    text-decoration: none; border: 1px solid var(--border-subtle);
    padding: 4px 10px; border-radius: 8px;
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    overflow: hidden;
}
.lang-switch:hover {
    border-color: var(--accent); color: var(--accent) !important;
    background: rgba(0,0,0,0.04); transform: scale(1.05);
}
.lang-switch:active { transform: scale(0.95); transition: transform 0.1s; }

/* ========== 极简按钮 ========== */
.btn-minimal {
    background: var(--text); color: var(--bg); border: none;
    padding: 8px 20px; border-radius: 12px; font-size: 0.8rem;
    font-weight: 600; letter-spacing: 1px; text-transform: uppercase;
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    text-decoration: none; overflow: hidden;
}
.btn-minimal:hover { opacity: 0.9; transform: scale(1.05); box-shadow: 0 8px 24px rgba(0,0,0,0.15); }
.btn-minimal:active { transform: scale(0.92); transition: transform 0.1s; }

/* ========== 毛玻璃搜索/CTA按钮 ========== */
.glass-search-btn {
    display: inline-block; padding: 5px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.255);
    border-radius: 999px;
    backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease; text-decoration: none;
}
.glass-search-btn:hover { border-color: rgba(255, 255, 255, 0.8); box-shadow: 0 0 30px rgba(255,255,255,0.2); }
.glass-search-btn:focus-visible { outline: none; border-color: rgba(255,255,255,0.9); box-shadow: 0 0 30px rgba(255,255,255,0.3); }
.glass-search-btn span {
    display: flex; justify-content: center; align-items: center;
    background: #ffffff; color: #1a1a1a;
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", "PingFang SC", sans-serif;
    font-weight: 600; font-size: 17px; height: 50px; min-width: 180px;
    border-radius: 999px; transition: all 0.3s ease; cursor: pointer; user-select: none;
}
.glass-search-btn:hover span { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(0,0,0,0.15); }
.glass-search-btn:active span { transform: translateY(0); box-shadow: 0 2px 6px rgba(0,0,0,0.1); }

/* ========== Hero 区域 ========== */
/* .hero {
    position: relative;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    overflow: hidden;
    background: radial-gradient(circle at center, #f0f8ff 0%, #ffffff 100%);
} */
.hero {
    position: relative; height: 100vh; display: flex;
    flex-direction: column; justify-content: center; align-items: center;
    text-align: center; overflow: hidden;
    background: url('/static/hero-bg.jpg') no-repeat center center;
    background-size: cover;
}
.hero-content {
    position: relative; z-index: 10; max-width: 1000px; padding: 0 40px;
}
.hero-content h1 {
    font-size: clamp(2.5rem, 5vw, 4rem); font-weight: 600;
    line-height: 1.3; letter-spacing: -1px; margin-bottom: 28px;
    background: linear-gradient(135deg, #0099ff 0%, #00fbff 20%, #F9F1E0 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text; text-shadow: 0 10px 40px rgba(74,158,255,0.15);
}
.hero-content p {
    font-size: 1.25rem;
    color: #ffffff;                    /* 纯白 */
    line-height: 1.6;
    max-width: 580px;
    margin: 0 auto 64px;
    font-weight: 500;
    text-shadow: 0 2px 10px rgba(0,0,0,0.4);
}
.btn-hero-primary {
    padding: 16px 48px; background: var(--accent); color: #fff;
    text-decoration: none; font-weight: 600; letter-spacing: 0.5px;
    font-size: 0.95rem; border: none; border-radius: 24px;
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    overflow: hidden; cursor: pointer; box-shadow: 0 4px 24px -1px rgba(0,0,0,0.15);
}
.btn-hero-primary:hover { background: #1a6fd4; transform: scale(1.06); box-shadow: 0 8px 30px rgba(0,0,0,0.25); }
.btn-hero-primary:active { transform: scale(0.92); box-shadow: 0 2px 10px rgba(0,0,0,0.2); transition: transform 0.1s; }

/* ========== 分割线 ========== */
.section-divider { height: 1px; background: var(--border-subtle); width: 100%; margin: 0; }

/* ========== 卡片 ========== */
.card {
    background: var(--surface); backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px); border: 1px solid var(--border-subtle);
    border-radius: 20px; color: var(--text);
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 4px 24px rgba(0,0,0,0.03);
}
.card:hover { border-color: var(--accent); transform: translateY(-4px) scale(1.02); box-shadow: 0 20px 40px rgba(0,0,0,0.08), 0 0 20px rgba(74,158,255,0.05); }
/* .card:active { transform: scale(0.98); transition: transform 0.1s; }   抖动 */
.clickable-card { cursor: pointer; transition: all 0.3s ease; }
.clickable-card:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.1); }

/* ========== 提示信息 ========== */
.alert-info {
    background: rgba(0,0,0,0.02); border: 1px solid var(--border-subtle);
    color: var(--text-secondary); border-radius: 12px; font-size: 0.9rem;
    backdrop-filter: blur(10px);
}
.flash-messages { position: fixed; top: 100px; width: 100%; z-index: 1000; pointer-events: none; }
.flash-messages .alert { max-width: 400px; margin: 0 auto 10px; pointer-events: auto; }

/* ========== SVG 丝带背景容器 ========== */
.content-bg {
position: absolute;
inset: -10%;
z-index: 0;
pointer-events: none;
overflow: hidden;
transform: translateZ(0);
will-change: transform;
}
@media (max-width: 768px) {
.ribbon-a, .ribbon-b, .trail-a, .trail-b, .glow-a, .glow-b {
    animation: none !important;
}
}
.content-bg svg {
width: 100%;
height: 100%;
overflow: visible;
}

/* 丝带动画（完全按照原始样式） */
.ribbon-a { animation: ribbonA 8s ease-in-out infinite; transform-origin: center; }
.ribbon-b { animation: ribbonB 10s ease-in-out infinite; transform-origin: center; }
.trail-a { animation: ribbonA 8s ease-in-out infinite; animation-delay: 0.15s; transform-origin: center; }
.trail-b { animation: ribbonB 10s ease-in-out infinite; animation-delay: 0.2s; transform-origin: center; }
.glow-a { animation: ribbonA 8s ease-in-out infinite; animation-delay: 0.3s; transform-origin: center; }
.glow-b { animation: ribbonB 10s ease-in-out infinite; animation-delay: 0.35s; transform-origin: center; }

@keyframes ribbonA {
0%, 100% { transform: rotate(-8deg) translate(-30px, 0) scale(1); }
25% { transform: rotate(-2deg) translate(50px, -20px) scale(1.06); }
50% { transform: rotate(-12deg) translate(-10px, 10px) scale(0.96); }
75% { transform: rotate(-5deg) translate(30px, -10px) scale(1.04); }
}

@keyframes ribbonB {
0%, 100% { transform: rotate(6deg) translate(20px, 0) scale(1); }
20% { transform: rotate(0deg) translate(-40px, 15px) scale(1.05); }
40% { transform: rotate(10deg) translate(30px, -15px) scale(0.97); }
60% { transform: rotate(2deg) translate(-20px, 10px) scale(1.03); }
80% { transform: rotate(8deg) translate(40px, -5px) scale(1); }
}

@media (prefers-reduced-motion: reduce) {
.ribbon-a, .ribbon-b, .trail-a, .trail-b, .glow-a, .glow-b {
    animation: none !important;
}
}

/* ========== Footer ========== */
.site-footer { background: #18181b; color: #a1a1aa; margin-top: 0; }
.footer-container { max-width: 1200px; margin: 0 auto; padding: 60px 40px 80px; }
.footer-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; }
.footer-title { color: #fff; font-weight: 600; font-size: 14px; margin-bottom: 20px; }
.footer-links { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 12px; }
.footer-links li { line-height: 1; }
.footer-links a { color: #a1a1aa; font-size: 13px; text-decoration: none; transition: color 0.3s ease; }
.footer-links a:hover { color: #fff; }
.footer-bottom { margin-top: 60px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,0.1); text-align: center; }
.footer-bottom p { color: #71717a; font-size: 12px; margin: 0; }

/* ========== Footer 社交媒体图标 ========== */
.social-icons {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.social-link {
    display: flex;
    align-items: center;
    transition: transform 0.2s;
    text-decoration: none;
}

.social-link .icon {
    width: 40px;
    height: 40px;
    vertical-align: middle;
}

.social-link:hover {
    transform: scale(1.15);
}

/* ========== 首页双栏介绍 ========== */
.home-about-section { padding: 80px 20px; background: transparent; }
.home-about-container { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; gap: 60px; }
.home-about-text { flex: 1; }
.home-about-text h2 { font-size: 2rem; font-weight: 700; color: #1a1a1a; margin-bottom: 20px; line-height: 1.3; }
.home-about-text p { font-size: 1.1rem; color: #666; line-height: 1.8; }
.home-about-image { flex: 1; }
.home-about-image img { width: 100%; aspect-ratio: 4/3; object-fit: cover; border-radius: 20px; box-shadow: 0 10px 30px rgba(0,0,0,0.05); }

/* ========== 三步流程 ========== */
.home-steps-section { padding: 80px 20px; background: transparent; }
.home-steps-subtitle {font-size: 14px;color: #666;text-align: center;margin-top: 8px;margin-bottom: 32px;font-weight: 400;}
.home-steps-container { max-width: 1200px; margin: 0 auto; }
.home-steps-title { text-align: center; font-size: 2rem; font-weight: 700; color: #1a1a1a; margin-bottom: 40px; }
.home-steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.step-card { background: transparent;; border-radius: 16px; overflow: hidden; box-shadow: 0 4px 12px rgba(0,0,0,0.04); transition: transform 0.3s ease, box-shadow 0.3s ease; }
.step-card:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0,0,0,0.08); }
.step-card img { width: 100%; aspect-ratio: 4/3; object-fit: cover; display: block; }
.step-card h3 { font-size: 1.25rem; font-weight: 700; color: #1a1a1a; margin: 20px 20px 8px; }
.step-card p { font-size: 0.95rem; color: #666; line-height: 1.6; margin: 0 20px 20px; }

/* ========== 按钮颜色修正（浅色主题） ========== */
.btn-outline-light { color: #333; border-color: #ccc; background: transparent; }
.btn-outline-light:hover { color: #000; background-color: #e9ecef; border-color: #bbb; }
.btn-outline-light:focus { box-shadow: 0 0 0 0.2rem rgba(0,0,0,0.1); }

/* ========== 表单通用类 ========== */
.input-full {
    width: 100%; padding: 12px; border: 1px solid #d0d5dd; border-radius: 8px;
    margin-top: 5px; background: #fff; color: var(--text);
    font-size: 0.95rem; transition: border-color 0.3s;
}
.input-full:focus { border-color: var(--accent); box-shadow: 0 0 0 2px rgba(72,158,255,0.2); outline: none; }
.label-bold { font-weight: 600; margin-bottom: 4px; display: block; }
.btn-rounded { border-radius: 25px; padding: 10px 25px; font-weight: 600; transition: all 0.3s ease; }
.card-padded { padding: 30px; }
.skill-tag {
    background: var(--surface); color: var(--text); padding: 4px 12px;
    border-radius: 20px; font-size: 0.85rem; display: flex; align-items: center;
    gap: 6px; border: 1px solid var(--border-subtle);
}
.container-center { padding: 60px 15px; max-width: 500px; margin: 0 auto; }
select option, .form-select option, .input-full option { background: #fff; color: var(--text); }
main { padding-top: 80px;flex: 1 0 auto; }
.home-page main { padding-top: 0; }
.message-sent { text-align: right; color: var(--accent); margin-bottom: 10px; }
.message-received { text-align: left; color: #444; margin-bottom: 10px; }
optgroup { color: var(--text); background: transparent; font-weight: 600; font-size: 0.9rem; }
.project-desc {display: -webkit-box;-webkit-line-clamp: 2;-webkit-box-orient: vertical;overflow: hidden;line-height: 1.5;}
/* 通用头像圆形样式 */
/* .avatar-circle {border-radius: 50%;object-fit: cover;} */

/* ========== 动画 ========== */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}
.hero-content h1 { animation: fadeInUp 1s ease 0.5s forwards; }
.hero-content p { animation: fadeInUp 1s ease 0.7s forwards; }
.cta-group { animation: fadeInUp 1s ease 0.9s forwards; }

/* ========== 移动端响应式优化 ========== */

/* --- 平板及以下 (≤991px) 导航栏折叠 --- */
@media (max-width: 991px) {
    .navbar {
        background: rgba(255,255,255,0.95);
        backdrop-filter: blur(20px);
        padding: 12px 0;
    }
    .navbar .container {
        flex-wrap: wrap;
    }
    .navbar-toggler {
        color: #303030; 
    }
    .navbar-brand {
        font-size: 1.2rem;
        letter-spacing: 4px;
        margin-right: auto;
        margin-left: 0;
    }
    .navbar-collapse {
        padding: 20px 0 10px;
    }
    .navbar-nav {
        gap: 12px;
        margin-bottom: 20px;
    }
    .nav-link {
        font-size: 0.95rem;
        padding: 10px 0 !important;
        color: var(--text) !important;
    }

    /* 右侧操作区：整体纵列 */
    .navbar-right {
        width: 100%;
        flex-direction: column;
        gap: 15px;
        margin-bottom: 20px;
    }

    /* 搜索框与语言切换在同一行 */
    .navbar-right .d-flex {
        width: 100%;
        margin-right: 0;
    }
    .search-box {
        flex: 1;
        margin-right: 10px;
    }
    .lang-switch {
        align-self: center;
        white-space: nowrap;
        padding: 6px 14px;
        font-size: 0.8rem;
    }

    /* 图标按钮容器：横向均匀分布 */
    .navbar-right .navbar-right {
        flex-direction: row;
        justify-content: space-around;
        background: rgba(0,0,0,0.03);
        border-radius: 12px;
        padding: 10px 0;
        gap: 0;
    }

    /* 每个图标按钮 */
    .icon-btn {
        flex: 1;
        flex-direction: column;
        align-items: center;
        gap: 4px;
        padding: 8px 4px;
        color: var(--text-secondary);
        border-radius: 8px;
    }
    .icon-btn:hover {
        background: rgba(0,0,0,0.05);
        color: var(--accent);
    }

    /* 图标下方的文字标签 */
    .icon-btn::after {
        content: attr(title);
        font-size: 0.65rem;
        font-weight: 500;
        white-space: nowrap;
    }

    /* 退出按钮单独成行，并占满宽度 */
    .btn-minimal {
        width: 100%;
        margin-top: 15px;
        text-align: center;
    }

    /* 下拉菜单在移动端全宽显示 */
    .talent-menu {
        width: 100%;
        max-width: 100vw;
        border-radius: 12px;
        padding: 8px 0;
    }
    .talent-menu .row {
        flex-direction: column;
    }
    .talent-industries {
        border-right: none;
        border-bottom: 1px solid rgba(0,0,0,0.1);
        max-height: 200px;
        overflow-y: auto;
    }
    .talent-sub-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .talent-footer {
        padding: 10px 20px;
        border-top: 1px solid rgba(0,0,0,0.08);
        text-align: center;
        font-size: 0.9rem;
    }

    /* Hero 区域适配 */
    .hero {
        min-height: 80vh;
        height: auto;
        padding: 120px 0 80px;
    }
    .hero-content {
        padding: 0 20px;
    }
    .hero-content h1 {
        font-size: 2rem !important;
    }
    .hero-content p {
        font-size: 1rem;
    }
    .btn-hero-primary {
        padding: 14px 32px;
        font-size: 0.9rem;
    }

    /* 卡片间距 */
    .card {
        margin-bottom: 16px;
    }

    /* 闪存消息位置 */
    .flash-messages {
        top: 70px;
    }
}

/* --- 手机横屏/小平板 (≤768px) 底部导航 + 布局微调 --- */
@media (max-width: 768px) {
    /* 移动端底部导航栏 */
    .mobile-bottom-nav {
        position: fixed; bottom: 0; left: 0; width: 100%; height: 64px;
        background: rgba(255,255,255,0.9); backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px); border-top: 1px solid var(--border-subtle);
        display: flex; justify-content: space-around; align-items: center;
        z-index: 1000; padding: 8px 0 env(safe-area-inset-bottom, 8px);
    }
    .mobile-bottom-nav a {
        display: flex; flex-direction: column; align-items: center;
        color: var(--text-secondary); text-decoration: none;
        font-size: 0.7rem; transition: color 0.3s; flex: 1; gap: 4px;
    }
    .mobile-bottom-nav a.active { color: var(--accent); }
    .mobile-bottom-nav a svg { width: 22px; height: 22px; fill: currentColor; }
    body { padding-bottom: 80px; }
    .container { padding-left: 15px; padding-right: 15px; }
    .card-body, .card-padded { padding: 20px !important; }
    .mb-3 { margin-bottom: 12px !important; }
    .btn-primary, .btn-success, .btn-outline-light, .btn-minimal, .btn-hero-primary {
        width: 100%; margin-bottom: 8px;
    }
    .pagination .page-link { padding: 4px 10px; font-size: 0.8rem; }

    /* 双栏介绍 → 垂直堆叠 */
    .home-about-container { flex-direction: column; gap: 30px; }
    .home-about-text h2 { font-size: 1.6rem; }
    .home-about-text p { font-size: 1rem; }

    /* 三步流程 → 两列 */
    .home-steps-grid { grid-template-columns: repeat(2, 1fr); }
}

/* --- 小屏手机 (≤480px) Footer单列，三步流程单列 --- */
@media (max-width: 480px) {
    .footer-grid { grid-template-columns: 1fr; }
    .home-steps-grid { grid-template-columns: 1fr; }
}

/* ========== 个人资料页 ========== */
.profile-card {
  background: var(--surface);
  border: 1px solid var(--border-subtle);
  border-radius: 24px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.02);
}

.profile-avatar {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0 8px 32px rgba(0,0,0,0.1);
  transition: transform 0.3s ease;
}
.profile-avatar:hover {
  transform: scale(1.02);
}

/* 技能标签 */
.profile-skill-tag {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 0.85rem;
  background: rgba(0,0,0,0.04);
  color: #333;
  border: 1px solid rgba(0,0,0,0.1);
  transition: all 0.2s;
}
.profile-skill-tag:hover {
  background: rgba(0,0,0,0.08);
}

/* 擅长领域标签 */
.profile-sub-tag {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 0.85rem;
  background: rgba(74,158,255,0.1);
  color: #1e5ea8;
  border: 1px solid rgba(74,158,255,0.25);
  transition: all 0.2s;
}
.profile-sub-tag:hover {
  background: rgba(74,158,255,0.2);
}

/* 简介区块 */
.profile-bio {
  background: rgba(0,0,0,0.02);
  border-radius: 12px;
  padding: 16px 20px;
  margin: 16px 0 8px;
  line-height: 1.7;
  color: var(--text-secondary);
  white-space: pre-wrap;
}

/* 移动端头像稍小 */
@media (max-width: 768px) {
  .profile-avatar {
    width: 150px;
    height: 150px;
  }
}