/* ============================================================
   重庆市恒德环保科技有限公司 - 企业官网样式
   现代简约 · 绿色环保 · 高端大气
   ============================================================ */

/* ==================== CSS变量 ==================== */
:root {
    --primary: #1a8a4a;
    --primary-dark: #0f5c30;
    --primary-light: #e6f5ec;
    --primary-gradient: linear-gradient(135deg, #0f5c30 0%, #1a8a4a 50%, #22c55e 100%);
    --accent: #f97316;
    --accent-light: #fff7ed;
    --text: #1a1a2e;
    --text-secondary: #4a5568;
    --text-muted: #94a3b8;
    --bg: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f0fdf4;
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    --radius-sm: 6px;
    --radius: 12px;
    --radius-lg: 20px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --shadow: 0 4px 16px rgba(0,0,0,0.06), 0 2px 6px rgba(0,0,0,0.04);
    --shadow-md: 0 8px 30px rgba(0,0,0,0.08), 0 2px 8px rgba(0,0,0,0.04);
    --shadow-lg: 0 20px 50px rgba(0,0,0,0.1), 0 4px 16px rgba(0,0,0,0.05);
    --shadow-green: 0 8px 30px rgba(26, 138, 74, 0.15);
    --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --max-width: 1200px;
    --header-height: 80px;
}

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

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

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.72;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

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

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* ==================== 滚动动画 ==================== */
/*
 * 策略：默认所有内容可见，只有 JS 确认就绪后才启用动画隐藏→显示
 * 这样即使 JS 加载失败或延迟，内容也不会空白
 */
.fade-up, .fade-in {
    /* 默认可见 */
    opacity: 1;
    transform: none;
}
/* JS 就绪后才隐藏元素，等待 Observer 触发显示 */
html.js-ready .fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
html.js-ready .fade-in {
    opacity: 0;
    transition: opacity 0.7s ease;
}
html.js-ready .fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}
html.js-ready .fade-in.visible { opacity: 1; }

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }

/* ==================== 几何装饰 ==================== */
.geo-dots {
    position: absolute;
    width: 120px;
    height: 120px;
    background-image: radial-gradient(rgba(26,138,74,0.15) 2px, transparent 2px);
    background-size: 16px 16px;
    pointer-events: none;
    z-index: 0;
}
.geo-circle {
    position: absolute;
    border-radius: 50%;
    border: 1.5px solid rgba(26,138,74,0.12);
    pointer-events: none;
    z-index: 0;
}

/* ==================== 顶部信息条 ==================== */
.top-bar {
    background: var(--primary-dark);
    color: rgba(255,255,255,0.9);
    font-size: 0.82rem;
    padding: 7px 0;
    letter-spacing: 0.3px;
}
.top-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}
.top-bar-contact { display: flex; gap: 24px; }
.top-bar-contact span { white-space: nowrap; display: inline-flex; align-items: center; gap: 6px; }
.top-bar-contact span::before { content: ''; width: 6px; height: 6px; background: rgba(255,255,255,0.5); border-radius: 50%; flex-shrink: 0; }
.top-bar-contact span:first-child::before { display: none; }

/* ==================== 头部导航 ==================== */
.site-header {
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(0,0,0,0.05), 0 2px 8px rgba(0,0,0,0.03);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}
.site-header.scrolled { box-shadow: 0 2px 20px rgba(0,0,0,0.08); }
.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: 14px;
    text-decoration: none;
    color: var(--text);
    flex-shrink: 0;
}
.logo-icon {
    width: 48px;
    height: 48px;
    background: var(--primary-gradient);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: 0 4px 12px rgba(26,138,74,0.2);
}
.logo-text h1 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary-dark);
    line-height: 1.2;
    letter-spacing: 0.5px;
}
.logo-text small {
    font-size: 0.72rem;
    color: var(--text-muted);
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

/* 主导航 */
.main-nav ul { display: flex; list-style: none; align-items: center; gap: 2px; }
.main-nav > ul > li { position: relative; }
.main-nav > ul > li > a {
    display: block;
    padding: 10px 18px;
    color: var(--text-secondary);
    font-size: 0.93rem;
    font-weight: 500;
    border-radius: 8px;
    transition: var(--transition);
    white-space: nowrap;
    position: relative;
}
.main-nav > ul > li > a::after {
    content: '';
    position: absolute;
    bottom: 6px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 20px;
    height: 2.5px;
    background: var(--primary);
    border-radius: 2px;
    transition: transform 0.3s ease;
}
.main-nav > ul > li > a:hover,
.main-nav > ul > li > a.active {
    color: var(--primary);
    background: var(--primary-light);
}
.main-nav > ul > li > a:hover::after,
.main-nav > ul > li > a.active::after {
    transform: translateX(-50%) scaleX(1);
}
.nav-user { margin-left: 14px; display: flex; gap: 8px; }

/* 移动端菜单按钮 */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    z-index: 1001;
}
.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: var(--transition);
}
.mobile-menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.mobile-menu-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* 手机内网未登录：header 右侧直接显示登录按钮，无需先点汉堡菜单 */
.mobile-intranet-login { display: none; }

/* 窄屏/低分辨率（投影仪等）：header 右侧常驻登录按钮，
   避免导航项横向溢出被裁掉后找不到登录入口 */
.site-quick-login { display: none; margin-right: 10px; flex-shrink: 0; white-space: nowrap; }

/* ==================== 按钮系统 ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 28px;
    font-size: 0.93rem;
    font-weight: 600;
    border-radius: 10px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    letter-spacing: 0.3px;
    position: relative;
    overflow: hidden;
}
.btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255,255,255,0);
    transition: background 0.3s ease;
    border-radius: inherit;
}
.btn:hover::after { background: rgba(255,255,255,0.1); }
.btn-sm { padding: 7px 16px; font-size: 0.82rem; border-radius: 8px; }
.btn-lg { padding: 15px 40px; font-size: 1.05rem; border-radius: 12px; }

.btn-primary {
    background: var(--primary-gradient);
    color: #fff;
    box-shadow: 0 4px 16px rgba(26,138,74,0.3);
}
.btn-primary:hover {
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(26,138,74,0.4);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
    font-weight: 600;
}
.btn-outline:hover {
    background: var(--primary);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-accent {
    background: linear-gradient(135deg, var(--accent), #ea580c);
    color: #fff;
    box-shadow: 0 4px 16px rgba(249,115,22,0.3);
}
.btn-accent:hover {
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(249,115,22,0.4);
}

.btn-white {
    background: #fff;
    color: var(--primary);
    font-weight: 600;
    box-shadow: var(--shadow);
}
.btn-white:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ==================== Hero 首页大屏 ==================== */
.hero {
    position: relative;
    background: linear-gradient(160deg, #0a3d1f 0%, #145c32 30%, #1a7a4a 60%, #0f5c30 100%);
    color: #fff;
    padding: 100px 0 120px;
    overflow: hidden;
}

/* 背景几何装饰 */
.hero-bg-1 {
    position: absolute;
    top: -15%;
    right: -5%;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255,255,255,0.06) 0%, transparent 70%);
    animation: floatSlow 8s ease-in-out infinite;
}
.hero-bg-2 {
    position: absolute;
    bottom: -20%;
    left: -8%;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255,255,255,0.04) 0%, transparent 70%);
    animation: floatSlow 10s ease-in-out 2s infinite;
}
.hero-bg-3 {
    position: absolute;
    top: 20%;
    left: 40%;
    width: 300px;
    height: 300px;
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: 50%;
    animation: floatSlow 12s ease-in-out 4s infinite;
}
.hero-dots {
    position: absolute;
    top: 10%;
    left: 5%;
    width: 180px;
    height: 180px;
    background-image: radial-gradient(rgba(255,255,255,0.08) 2px, transparent 2px);
    background-size: 20px 20px;
}
.hero-grid {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 300px;
    height: 300px;
    background-image: 
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    mask-image: linear-gradient(to top left, rgba(0,0,0,1), rgba(0,0,0,0));
    -webkit-mask-image: linear-gradient(to top left, rgba(0,0,0,1), rgba(0,0,0,0));
}

@keyframes floatSlow {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-20px) scale(1.05); }
}

.hero .container {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 60px;
}
.hero-content { flex: 1; max-width: 600px; }
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,0.12);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.15);
    padding: 6px 18px;
    border-radius: 50px;
    font-size: 0.85rem;
    margin-bottom: 24px;
    letter-spacing: 0.5px;
}
.hero-badge::before {
    content: '';
    width: 8px;
    height: 8px;
    background: #22c55e;
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.3); }
}
.hero-content h1 {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    letter-spacing: -0.5px;
}
.hero-content h1 span {
    background: linear-gradient(135deg, #22c55e, #86efac);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-content .hero-desc {
    font-size: 1.1rem;
    line-height: 1.9;
    opacity: 0.88;
    margin-bottom: 36px;
    max-width: 520px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-visual {
    flex: 0 0 420px;
    position: relative;
}
.hero-card {
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: 48px 36px;
    text-align: center;
    border: 1px solid rgba(255,255,255,0.15);
    box-shadow: 0 20px 60px rgba(0,0,0,0.2);
    position: relative;
    overflow: hidden;
}
.hero-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(from 0deg, transparent, rgba(255,255,255,0.05), transparent, rgba(255,255,255,0.05), transparent);
    animation: rotate 20s linear infinite;
}
@keyframes rotate { to { transform: rotate(360deg); } }
.hero-card .big-icon {
    font-size: 4.5rem;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
    filter: drop-shadow(0 4px 12px rgba(0,0,0,0.2));
}
.hero-card h3 {
    font-size: 1.25rem;
    margin-bottom: 10px;
    position: relative;
    z-index: 1;
}
.hero-card .hero-stats {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 24px;
    position: relative;
    z-index: 1;
    padding-top: 24px;
    border-top: 1px solid rgba(255,255,255,0.1);
}
.hero-stat .hs-num { font-size: 1.8rem; font-weight: 800; color: #22c55e; }
.hero-stat .hs-label { font-size: 0.78rem; opacity: 0.7; margin-top: 2px; }

/* ==================== 通用区块 ==================== */
.section { padding: 100px 0; position: relative; }
.section-gray { background: var(--bg-secondary); }
.section-green { background: var(--bg-tertiary); }

.section-header {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
}
.section-header .section-tag {
    display: inline-block;
    padding: 5px 16px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 50px;
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 16px;
}
.section-header h2 {
    font-size: 2.2rem;
    color: var(--text);
    margin-bottom: 16px;
    font-weight: 800;
    letter-spacing: -0.3px;
}
.section-header p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 640px;
    margin: 0 auto;
    line-height: 1.7;
}
.section-label {
    display: inline-block;
    padding: 5px 16px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 50px;
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 16px;
}
.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 640px;
    margin: 0 auto 20px;
    line-height: 1.7;
}
.bg-light { background: var(--bg-secondary); }
.container-narrow { max-width: 900px; }
.section-divider {
    width: 56px;
    height: 4px;
    background: var(--primary-gradient);
    margin: 20px auto 0;
    border-radius: 2px;
}

/* ==================== 服务卡片 ==================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.service-card {
    background: var(--bg);
    border-radius: var(--radius-lg);
    padding: 44px 32px 36px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
    border: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.4s ease;
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.service-card:hover::before { transform: scaleX(1); }
.service-card .card-icon {
    width: 72px;
    height: 72px;
    background: var(--primary-light);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 24px;
    transition: var(--transition);
}
.service-card:hover .card-icon {
    background: var(--primary-gradient);
    transform: scale(1.1) rotate(-5deg);
}
.service-card:hover .card-icon { color: transparent; } /* emoji stays visible, just scale/rotate */
.service-card h3 { font-size: 1.2rem; margin-bottom: 12px; color: var(--text); font-weight: 700; }
.service-card p { color: var(--text-secondary); font-size: 0.93rem; line-height: 1.8; }
.service-card .card-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 20px;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--primary);
}
.service-card .card-link::after {
    content: '→';
    transition: transform 0.3s ease;
}
.service-card:hover .card-link::after { transform: translateX(4px); }

/* ==================== 知识库卡片 ==================== */
.knowledge-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.knowledge-card {
    background: var(--bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border-light);
}
.knowledge-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}
.knowledge-card .card-img {
    height: 200px;
    background: linear-gradient(135deg, var(--primary-light), #bbf7d0);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3.5rem;
    position: relative;
    overflow: hidden;
}
.knowledge-card .card-img::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60%;
    background: linear-gradient(to top, rgba(255,255,255,0.5), transparent);
}
.knowledge-card .card-body {
    padding: 24px;
}
.knowledge-card .card-meta {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 10px;
    display: flex;
    gap: 16px;
    align-items: center;
}
.knowledge-card .card-meta .cat-tag {
    padding: 2px 10px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 50px;
    font-weight: 500;
    font-size: 0.75rem;
}
.knowledge-card h3 { font-size: 1.1rem; margin-bottom: 10px; line-height: 1.5; font-weight: 700; }
.knowledge-card h3 a { color: var(--text); }
.knowledge-card h3 a:hover { color: var(--primary); }
.knowledge-card p { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.7; }
.knowledge-card .read-more {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    margin-top: 14px;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--primary);
}

/* ==================== 优势区块 ==================== */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
}
.advantage-card {
    text-align: center;
    padding: 40px 24px;
    background: var(--bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid transparent;
}
.advantage-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-green);
    transform: translateY(-4px);
}
.advantage-card .adv-icon {
    font-size: 2.8rem;
    margin-bottom: 20px;
    display: inline-block;
    transition: var(--transition);
}
.advantage-card:hover .adv-icon { transform: scale(1.15); }
.advantage-card h3 { font-size: 1.12rem; margin-bottom: 10px; color: var(--text); font-weight: 700; }
.advantage-card p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.7; }

/* ==================== 统计数据 ==================== */
.stats-section {
    background: var(--primary-gradient);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}
.stats-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(255,255,255,0.06) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(255,255,255,0.04) 0%, transparent 50%);
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
    position: relative;
    z-index: 1;
}
.stat-card {
    padding: 20px;
}
.stat-card .stat-icon {
    font-size: 2.2rem;
    margin-bottom: 12px;
    opacity: 0.9;
}
.stat-card .stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 6px;
    letter-spacing: -1px;
}
.stat-card .stat-label {
    color: rgba(255,255,255,0.75);
    font-size: 0.95rem;
    font-weight: 500;
}
.stat-card .stat-plus {
    color: #22c55e;
    font-size: 1.8rem;
    font-weight: 800;
}

/* ==================== CTA区块 ==================== */
.cta-section {
    background: var(--primary-gradient);
    color: #fff;
    text-align: center;
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}
.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 5 L30 55 M5 30 L55 30' stroke='rgba(255,255,255,0.04)' stroke-width='2'/%3E%3C/svg%3E");
}
.cta-section .container { position: relative; z-index: 1; }
.cta-section h2 { font-size: 2.2rem; margin-bottom: 16px; font-weight: 800; letter-spacing: -0.3px; }
.cta-section p { font-size: 1.1rem; opacity: 0.9; margin-bottom: 32px; max-width: 560px; margin-left: auto; margin-right: auto; }
.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ==================== 页面标题 ==================== */
.page-title {
    background: var(--primary-gradient);
    color: #fff;
    padding: 60px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.page-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: rgba(255,255,255,0.15);
}
.page-title h1 { font-size: 2.2rem; margin-bottom: 10px; font-weight: 800; letter-spacing: -0.3px; }
.page-title p { font-size: 1.05rem; opacity: 0.85; max-width: 500px; margin: 0 auto; }

/* 面包屑 */
.breadcrumb {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
    font-size: 0.88rem;
    color: var(--text-muted);
    padding: 20px 0;
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: var(--text-muted); }
.breadcrumb span { color: var(--text); font-weight: 500; }

/* ==================== 关于我们 ==================== */
.about-section { padding: 60px 0; }
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.about-image-wrapper {
    position: relative;
}
.about-image {
    background: linear-gradient(135deg, #e6f5ec, #bbf7d0);
    border-radius: var(--radius-lg);
    height: 480px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 6rem;
    position: relative;
    z-index: 1;
}
.about-image-badge {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background: var(--primary-gradient);
    color: #fff;
    padding: 20px 28px;
    border-radius: var(--radius);
    z-index: 2;
    box-shadow: var(--shadow-md);
    text-align: center;
}
.about-image-badge .badge-num {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1;
}
.about-image-badge .badge-label {
    font-size: 0.82rem;
    opacity: 0.9;
    margin-top: 4px;
}
.about-text h2 { font-size: 2rem; margin-bottom: 24px; color: var(--text); font-weight: 800; }
.about-text h2 span { color: var(--primary); }
.about-text p { color: var(--text-secondary); line-height: 1.9; margin-bottom: 18px; font-size: 0.98rem; }
.about-values {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
    margin-top: 28px;
}
.value-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
    color: var(--text);
    font-weight: 500;
}
.value-item .vi-check {
    width: 28px;
    height: 28px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 700;
    flex-shrink: 0;
}

/* 时间线 */
.timeline-wrapper { padding: 60px 0; }
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}
.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, transparent, var(--primary), var(--primary-light), transparent);
    transform: translateX(-50%);
}
.timeline-item {
    display: flex;
    margin-bottom: 50px;
    position: relative;
}
.timeline-item:nth-child(odd) { justify-content: flex-start; padding-right: 52%; }
.timeline-item:nth-child(even) { justify-content: flex-end; padding-left: 52%; }
.timeline-dot {
    position: absolute;
    left: 50%;
    top: 30px;
    transform: translateX(-50%);
    width: 16px;
    height: 16px;
    background: var(--primary);
    border: 3px solid var(--bg);
    border-radius: 50%;
    box-shadow: 0 0 0 4px var(--primary-light);
    z-index: 2;
}
.timeline-content {
    background: var(--bg);
    padding: 28px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
    transition: var(--transition);
    width: 100%;
    max-width: 380px;
}
.timeline-content:hover { box-shadow: var(--shadow-md); border-color: var(--primary); }
.timeline-year {
    display: inline-block;
    padding: 4px 14px;
    background: var(--primary-gradient);
    color: #fff;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 10px;
}
.timeline-content h3 { font-size: 1.1rem; margin-bottom: 6px; color: var(--text); }
.timeline-content p { font-size: 0.9rem; color: var(--text-secondary); }

/* ==================== 知识库列表 ==================== */
.knowledge-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 36px;
    padding: 50px 0;
}
.sidebar {
    background: var(--bg);
    border-radius: var(--radius-lg);
    padding: 28px;
    box-shadow: var(--shadow);
    height: fit-content;
    position: sticky;
    top: calc(var(--header-height) + 30px);
    border: 1px solid var(--border-light);
}
.sidebar h3 {
    font-size: 1.1rem;
    margin-bottom: 20px;
    padding-bottom: 14px;
    border-bottom: 2px solid var(--primary-light);
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
}
.sidebar ul { list-style: none; }
.sidebar ul li a {
    display: block;
    padding: 12px 16px;
    color: var(--text-secondary);
    border-radius: 8px;
    transition: var(--transition);
    font-size: 0.95rem;
    font-weight: 500;
    margin-bottom: 2px;
}
.sidebar ul li a:hover,
.sidebar ul li a.active {
    background: var(--primary-light);
    color: var(--primary);
    font-weight: 600;
}
.article-list-item {
    display: flex;
    gap: 24px;
    padding: 28px 0;
    border-bottom: 1px solid var(--border-light);
    transition: var(--transition);
}
.article-list-item:hover {
    background: var(--bg-secondary);
    margin: 0 -24px;
    padding-left: 24px;
    padding-right: 24px;
    border-radius: var(--radius);
    border-bottom-color: transparent;
}
.article-list-img {
    width: 220px;
    height: 150px;
    background: linear-gradient(135deg, var(--primary-light), #bbf7d0);
    border-radius: var(--radius);
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    overflow: hidden;
}
.article-list-body { flex: 1; min-width: 0; }
.article-list-body h3 { font-size: 1.2rem; margin-bottom: 10px; font-weight: 700; line-height: 1.4; }
.article-list-body h3 a { color: var(--text); }
.article-list-body h3 a:hover { color: var(--primary); }
.article-list-body .meta {
    font-size: 0.84rem;
    color: var(--text-muted);
    margin-bottom: 10px;
    display: flex;
    gap: 16px;
    align-items: center;
    flex-wrap: wrap;
}
.article-list-body p { font-size: 0.92rem; color: var(--text-secondary); line-height: 1.7; }

/* 文章详情 */
.article-detail {
    max-width: 820px;
    margin: 0 auto;
    padding: 50px 0;
}
.article-detail h1 {
    font-size: 2rem;
    margin-bottom: 18px;
    line-height: 1.4;
    font-weight: 800;
    letter-spacing: -0.3px;
}
.article-meta-detail {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 36px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}
.article-content { line-height: 2; color: var(--text); }
.article-content h2, .article-content h3 {
    margin-top: 40px;
    margin-bottom: 16px;
    color: var(--text);
    font-weight: 700;
}
.article-content p { margin-bottom: 18px; }
.article-content ul, .article-content ol { margin-bottom: 18px; padding-left: 28px; }
.article-content li { margin-bottom: 8px; }
.article-content blockquote {
    border-left: 4px solid var(--primary);
    background: var(--primary-light);
    padding: 16px 24px;
    margin: 24px 0;
    border-radius: 0 var(--radius) var(--radius) 0;
}

/* ==================== 产品服务 ==================== */
.products-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.product-card {
    background: var(--bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
    transition: var(--transition);
}
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.product-card .product-img {
    height: 220px;
    background: linear-gradient(135deg, #e6f5ec, #86efac);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    position: relative;
    overflow: hidden;
}
.product-card .product-img::after {
    content: '';
    position: absolute;
    bottom: -30px;
    left: -30px;
    width: 120px;
    height: 120px;
    background: rgba(255,255,255,0.3);
    border-radius: 50%;
}
.product-card .product-body { padding: 28px; }
.product-card .product-category {
    display: inline-block;
    padding: 4px 12px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 50px;
    font-size: 0.78rem;
    font-weight: 600;
    margin-bottom: 12px;
}
.product-card h3 { font-size: 1.15rem; margin-bottom: 10px; font-weight: 700; }
.product-card h3 a { color: var(--text); }
.product-card h3 a:hover { color: var(--primary); }
.product-card p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.7; margin-bottom: 16px; }
.product-features { display: flex; flex-wrap: wrap; gap: 8px; }
.product-features span {
    font-size: 0.78rem;
    padding: 5px 12px;
    background: var(--bg-secondary);
    border-radius: 6px;
    color: var(--text-secondary);
    font-weight: 500;
    border: 1px solid var(--border-light);
}

/* ==================== 工具页 ==================== */
.tools-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.tool-card {
    background: var(--bg);
    border-radius: var(--radius-lg);
    padding: 40px 28px;
    text-align: center;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}
.tool-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--primary-gradient);
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 0;
}
.tool-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.tool-card:hover::before { opacity: 0.03; }
.tool-card .tool-icon { font-size: 2.8rem; margin-bottom: 18px; position: relative; z-index: 1; transition: var(--transition); }
.tool-card:hover .tool-icon { transform: scale(1.1); }
.tool-card h3 { font-size: 1.15rem; margin-bottom: 10px; font-weight: 700; position: relative; z-index: 1; }
.tool-card p { font-size: 0.9rem; color: var(--text-secondary); position: relative; z-index: 1; }

/* ==================== 商机页 ==================== */
.opportunity-list { display: grid; gap: 24px; }
.opportunity-card {
    background: var(--bg);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
    transition: var(--transition);
    display: flex;
    gap: 24px;
    align-items: flex-start;
}
.opportunity-card:hover { border-color: var(--primary); box-shadow: var(--shadow-md); transform: translateX(4px); }
.opportunity-type {
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    flex-shrink: 0;
    letter-spacing: 0.3px;
}
.type-cooperation { background: #dbeafe; color: #1d4ed8; }
.type-project { background: #ffedd5; color: #c2410c; }
.type-procurement { background: #f3e8ff; color: #7c3aed; }
.type-other { background: var(--bg-secondary); color: var(--text-secondary); }
.opportunity-body { flex: 1; min-width: 0; }
.opportunity-body h3 { font-size: 1.15rem; margin-bottom: 8px; font-weight: 700; }
.opportunity-body p { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 10px; line-height: 1.7; }
.opportunity-body .deadline { color: var(--accent); font-weight: 600; font-size: 0.85rem; }

/* ==================== 联系我们 ==================== */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 40px;
    padding: 60px 0;
}
.contact-info-card {
    background: var(--primary-gradient);
    color: #fff;
    border-radius: var(--radius-lg);
    padding: 44px 36px;
    position: relative;
    overflow: hidden;
}
.contact-info-card::after {
    content: '';
    position: absolute;
    top: -30%;
    right: -30%;
    width: 250px;
    height: 250px;
    border-radius: 50%;
    background: rgba(255,255,255,0.05);
}
.contact-info-card h2 { font-size: 1.6rem; margin-bottom: 8px; font-weight: 800; position: relative; z-index: 1; }
.contact-info-card .subtitle { opacity: 0.8; margin-bottom: 36px; position: relative; z-index: 1; }
.contact-info-item {
    display: flex;
    gap: 16px;
    margin-bottom: 28px;
    align-items: flex-start;
    position: relative;
    z-index: 1;
}
.contact-info-item .ci-icon {
    font-size: 1.6rem;
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: rgba(255,255,255,0.12);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.contact-info-item h4 { font-size: 1rem; margin-bottom: 4px; font-weight: 700; }
.contact-info-item p { font-size: 0.9rem; opacity: 0.85; line-height: 1.6; }
.contact-form-card {
    background: var(--bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 44px 36px;
    border: 1px solid var(--border-light);
}
.contact-form-card h2 { font-size: 1.6rem; margin-bottom: 28px; color: var(--text); font-weight: 800; }

/* ==================== 表单 ==================== */
.form-group { margin-bottom: 22px; }
.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text);
}
.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--border);
    border-radius: 10px;
    font-size: 0.95rem;
    font-family: inherit;
    transition: var(--transition);
    outline: none;
    background: var(--bg-secondary);
    color: var(--text);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(26,138,74,0.08);
    background: var(--bg);
}
.form-group textarea { resize: vertical; min-height: 130px; }
.form-group .btn { width: 100%; }
.form-hint { font-size: 0.82rem; color: var(--text-muted); margin-top: 6px; }

.alert {
    padding: 14px 18px;
    border-radius: 10px;
    margin-bottom: 24px;
    font-size: 0.9rem;
    font-weight: 500;
}
.alert-success { background: #f0fdf4; color: #166534; border: 1px solid #bbf7d0; }
.alert-error { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }

/* ==================== 登录/注册 ==================== */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    background: var(--bg-secondary);
}
.auth-card {
    background: var(--bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 48px 40px;
    width: 100%;
    max-width: 440px;
    border: 1px solid var(--border-light);
    position: relative;
    /* auto 外边距：空间充足时垂直居中；视口太矮时自动归零，
       卡片从顶部开始排列，配合页面滚动保证登录按钮一定可见（避免被裁在屏幕外） */
    margin: auto 0;
}
.auth-back-home {
    position: absolute;
    top: 18px;
    left: 20px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: color 0.2s;
}
.auth-back-home:hover { color: var(--primary); }
.auth-logo {
    text-align: center;
    margin-bottom: 30px;
}
.auth-logo .al-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-gradient);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 16px;
    box-shadow: 0 4px 16px rgba(26,138,74,0.25);
}
.auth-card h2 {
    text-align: center;
    font-size: 1.6rem;
    margin-bottom: 8px;
    color: var(--text);
    font-weight: 800;
}
.auth-card .auth-subtitle {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 32px;
}
.auth-links {
    text-align: center;
    margin-top: 20px;
    font-size: 0.9rem;
    color: var(--text-muted);
}
.auth-links a { font-weight: 600; }

/* 记住密码 */
.form-group.remember-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-top: -6px;
    margin-bottom: 18px;
}
.remember-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin: 0;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    user-select: none;
    white-space: nowrap;
}
.form-group.remember-row input[type="checkbox"] {
    width: 16px;
    height: 16px;
    min-width: 16px;
    padding: 0;
    margin: 0;
    border-radius: 4px;
    accent-color: var(--primary);
    cursor: pointer;
}
.remember-hint {
    font-size: 0.78rem;
    color: var(--text-muted);
    text-align: right;
}

/* ==================== 页脚 ==================== */
.site-footer {
    background: #0f172a;
    color: rgba(255,255,255,0.65);
    padding: 70px 0 0;
    position: relative;
}
.site-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-gradient);
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1fr;
    gap: 50px;
    padding-bottom: 50px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}
.footer-col h4 {
    color: #fff;
    font-size: 1.05rem;
    margin-bottom: 24px;
    font-weight: 700;
    letter-spacing: 0.3px;
}
.footer-col p { font-size: 0.9rem; line-height: 1.8; margin-bottom: 12px; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul li a {
    color: rgba(255,255,255,0.55);
    font-size: 0.9rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.footer-col ul li a::before { content: '→'; font-size: 0.8rem; opacity: 0; transition: var(--transition); }
.footer-col ul li a:hover { color: #fff; padding-left: 0; }
.footer-col ul li a:hover::before { opacity: 1; }
.footer-contact li { font-size: 0.9rem; line-height: 1.9; display: flex; gap: 8px; }
.footer-bottom {
    padding: 28px 0;
    text-align: center;
    font-size: 0.84rem;
    color: rgba(255,255,255,0.35);
}
.footer-bottom p { margin-bottom: 4px; }

/* ==================== 分页 ==================== */
.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 50px;
}
.pagination .page-item {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 42px;
    height: 42px;
    padding: 0 14px;
    border-radius: 10px;
    border: 1.5px solid var(--border);
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 600;
    transition: var(--transition);
    background: var(--bg);
}
.pagination .page-item:hover {
    background: var(--primary-light);
    color: var(--primary);
    border-color: var(--primary);
}
.pagination .page-item.active {
    background: var(--primary-gradient);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 4px 12px rgba(26,138,74,0.3);
}

/* ==================== 返回顶部 ==================== */
.back-to-top {
    position: fixed;
    bottom: 36px;
    right: 36px;
    width: 50px;
    height: 50px;
    background: var(--primary-gradient);
    color: #fff;
    border: none;
    border-radius: 14px;
    font-size: 1.3rem;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(26,138,74,0.35);
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
}
.back-to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { transform: translateY(-3px); box-shadow: 0 8px 30px rgba(26,138,74,0.45); }

/* ==================== 后台管理 ==================== */
.admin-layout { display: flex; min-height: calc(100vh - 60px); }
.admin-sidebar {
    width: 240px;
    background: #0f172a;
    color: #fff;
    padding: 28px 0;
    flex-shrink: 0;
}
.admin-sidebar h2 {
    padding: 0 24px 24px;
    font-size: 1.2rem;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    margin-bottom: 16px;
}
.admin-sidebar nav ul { list-style: none; }
.admin-sidebar nav ul li a {
    display: block;
    padding: 12px 24px;
    color: rgba(255,255,255,0.65);
    font-size: 0.93rem;
    transition: var(--transition);
    font-weight: 500;
}
.admin-sidebar nav ul li a:hover,
.admin-sidebar nav ul li a.active {
    color: #fff;
    background: rgba(255,255,255,0.06);
    border-right: 3px solid var(--primary);
}
.admin-main { flex: 1; padding: 32px; background: var(--bg-secondary); }
.admin-card {
    background: var(--bg);
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: var(--shadow);
    margin-bottom: 24px;
    border: 1px solid var(--border-light);
}
.admin-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 30px; }
.admin-stat-card {
    background: var(--bg);
    padding: 24px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--primary);
}
.admin-stat-card .stat-num { font-size: 2rem; font-weight: 800; color: var(--text); }
.admin-stat-card .stat-label { font-size: 0.85rem; color: var(--text-muted); margin-top: 4px; }
.admin-table { width: 100%; border-collapse: collapse; font-size: 0.93rem; }
.admin-table th {
    text-align: left;
    padding: 14px 16px;
    background: var(--bg-secondary);
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 2px solid var(--border);
}
.admin-table td { padding: 14px 16px; border-bottom: 1px solid var(--border-light); }
.admin-table tr:hover td { background: var(--bg-secondary); }

/* ==================== 环评服务页 ==================== */
.eia-hero {
    position: relative;
    padding: 100px 0 90px;
    background: linear-gradient(135deg, #0a3d1a 0%, #145c30 30%, #1a8a4a 60%, #0d6b32 100%);
    overflow: hidden;
    color: #fff;
}
.eia-hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 15% 20%, rgba(255,255,255,0.08) 0%, transparent 50%),
        radial-gradient(circle at 85% 80%, rgba(255,255,255,0.06) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(34,197,94,0.1) 0%, transparent 40%);
    pointer-events: none;
}
.eia-hero-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}
.eia-hero-content { max-width: 800px; margin: 0 auto; text-align: center; position: relative; z-index: 1; }
.eia-hero-badge {
    display: inline-block;
    padding: 6px 20px;
    background: rgba(255,255,255,0.15);
    border: 1px solid rgba(255,255,255,0.25);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
}
.eia-hero h1 { font-size: 2.8rem; line-height: 1.25; margin-bottom: 20px; font-weight: 800; }
.eia-hero h1 span { color: rgba(255,255,255,0.85); font-weight: 500; font-size: 0.55em; display: block; margin-top: 8px; }
.eia-hero-subtitle { font-size: 1.15rem; color: rgba(255,255,255,0.8); margin-bottom: 36px; }
.eia-hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.eia-hero-actions .btn-outline { border-color: rgba(255,255,255,0.4); color: #fff; background: transparent; }
.eia-hero-actions .btn-outline:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.7); }

/* 痛点卡片 */
.pain-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; max-width: 900px; margin: 0 auto; }
.pain-card {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 22px 24px;
    background: var(--bg);
    border-radius: var(--radius);
    border: 1px solid var(--border-light);
    transition: var(--transition);
}
.pain-card:hover { border-color: #fca5a5; box-shadow: 0 4px 16px rgba(239,68,68,0.06); }
.pain-icon { font-size: 1.4rem; flex-shrink: 0; }
.pain-card p { margin: 0; color: var(--text-secondary); font-size: 0.95rem; line-height: 1.6; }
.pain-conclusion { max-width: 900px; margin: 28px auto 0; padding: 28px 32px; background: var(--bg); border-left: 4px solid var(--primary); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.pain-conclusion p { margin: 0 0 8px; font-size: 1.05rem; }
.pain-desc { color: var(--text-secondary); font-size: 0.95rem !important; line-height: 1.7; }

/* 服务详情卡片 */
.service-detail-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; max-width: 1000px; margin: 0 auto; }
.service-detail-card {
    padding: 32px;
    background: var(--bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}
.service-detail-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--primary-light); }
.sdc-icon { font-size: 2.5rem; margin-bottom: 16px; }
.service-detail-card h3 { font-size: 1.15rem; margin-bottom: 14px; color: var(--text); }
.service-detail-card ul { list-style: none; padding: 0; }
.service-detail-card ul li { padding: 5px 0; padding-left: 18px; position: relative; font-size: 0.92rem; color: var(--text-secondary); line-height: 1.7; }
.service-detail-card ul li::before { content: '•'; position: absolute; left: 0; color: var(--primary); font-weight: bold; }

/* 适用对象卡片 */
.target-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; max-width: 800px; margin: 0 auto; }
.target-card {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 24px;
    background: var(--bg);
    border-radius: var(--radius);
    border: 1px solid var(--border-light);
    transition: var(--transition);
}
.target-card:hover { border-color: var(--primary-light); box-shadow: var(--shadow-sm); }
.target-check { font-size: 1.6rem; flex-shrink: 0; }
.target-card h4 { font-size: 1rem; margin-bottom: 4px; color: var(--text); }
.target-card p { margin: 0; font-size: 0.88rem; color: var(--text-muted); }
.target-cta { text-align: center; margin-top: 32px; }
.target-cta p { margin-bottom: 16px; font-size: 1.05rem; }

/* 优势卡片 */
.advantage-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; max-width: 1000px; margin: 0 auto; }
.advantage-card {
    padding: 32px;
    background: var(--bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.advantage-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--primary-light); }
.adv-icon { font-size: 2.2rem; margin-bottom: 12px; }
.advantage-card h3 { font-size: 1.1rem; margin-bottom: 12px; color: var(--text); }
.advantage-card > p { font-size: 0.93rem; color: var(--text-secondary); line-height: 1.7; margin: 0; }
.adv-list { list-style: none; padding: 0; margin: 0; }
.adv-list li { padding: 4px 0; padding-left: 16px; position: relative; font-size: 0.9rem; color: var(--text-secondary); line-height: 1.7; }
.adv-list li::before { content: '✓'; position: absolute; left: 0; color: var(--primary); font-weight: bold; font-size: 0.8rem; }

/* 服务流程时间线 */
.process-timeline { max-width: 700px; margin: 0 auto; position: relative; padding-left: 60px; }
.process-timeline::before {
    content: '';
    position: absolute;
    left: 28px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(to bottom, var(--primary), var(--primary-light), var(--primary));
    border-radius: 2px;
}
.process-step {
    position: relative;
    padding-bottom: 32px;
}
.process-step:last-child { padding-bottom: 0; }
.process-number {
    position: absolute;
    left: -60px;
    top: 0;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--primary-gradient);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.2rem;
    box-shadow: 0 4px 16px rgba(26,138,74,0.3);
    z-index: 1;
}
.process-content {
    background: var(--bg);
    padding: 24px 28px;
    border-radius: var(--radius);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
}
.process-content h3 { font-size: 1.05rem; margin-bottom: 8px; color: var(--text); }
.process-content p { margin: 0; font-size: 0.9rem; color: var(--text-secondary); line-height: 1.7; }

/* FAQ */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border-light); }
.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 0;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text);
    text-align: left;
    transition: color 0.2s;
    font-family: inherit;
}
.faq-question:hover { color: var(--primary); }
.faq-arrow { font-size: 1.2rem; transition: transform 0.3s; color: var(--text-muted); }
.faq-item.open .faq-arrow { transform: rotate(180deg); color: var(--primary); }
.faq-item.open .faq-question { color: var(--primary); }
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, padding 0.35s ease;
    font-size: 0.93rem;
    color: var(--text-secondary);
    line-height: 1.7;
}
.faq-item.open .faq-answer { max-height: 600px; padding: 0 0 24px 0; }
.faq-answer p { margin: 0 0 8px; }
.faq-answer ul { margin: 8px 0; padding-left: 20px; }
.faq-answer ul li { margin-bottom: 4px; }
.faq-answer a { color: var(--primary); font-weight: 600; }

/* CTA区域渐变背景 */
.bg-primary-gradient {
    background: linear-gradient(135deg, #0a3d1a 0%, #145c30 40%, #1a8a4a 100%);
    color: #fff;
}
.bg-primary-gradient .section-label { color: rgba(255,255,255,0.7); }
.bg-primary-gradient h2, .bg-primary-gradient .section-header h2 { color: #fff; }
.bg-primary-gradient .section-subtitle { color: rgba(255,255,255,0.75); }
.eia-cta-header { text-align: center; margin-bottom: 40px; }
.eia-cta-header h2 { font-size: 2.2rem; margin-bottom: 12px; }
.eia-cta-subtitle { font-size: 1.3rem; color: rgba(255,255,255,0.85); margin-bottom: 32px; }
.eia-cta-contact { display: flex; gap: 32px; justify-content: center; flex-wrap: wrap; }
.eia-cta-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1rem;
    color: rgba(255,255,255,0.9);
}
.eia-cta-icon { font-size: 1.3rem; }
.eia-cta-item strong { color: #fff; }

/* 表单卡片 */
.eia-form-card {
    background: var(--bg);
    border-radius: var(--radius-lg);
    padding: 40px;
    max-width: 650px;
    margin: 0 auto 40px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.15);
    border: 1px solid var(--border-light);
}
.eia-form-card h3 { font-size: 1.1rem; margin-bottom: 24px; color: var(--text); text-align: center; }
.eia-form { color: var(--text); }
.eia-form .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.eia-form .form-group { margin-bottom: 20px; }
.eia-form label { display: block; margin-bottom: 6px; font-weight: 600; font-size: 0.9rem; color: var(--text); }
.eia-form .required { color: #ef4444; }
.eia-form input, .eia-form textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--border);
    border-radius: 10px;
    font-size: 0.95rem;
    font-family: inherit;
    transition: var(--transition);
    background: var(--bg);
    color: var(--text);
}
.eia-form input:focus, .eia-form textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(26,138,74,0.1); }
.btn-block { display: block; width: 100%; text-align: center; }

/* 信任背书 */
.eia-trust { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; max-width: 700px; margin: 0 auto; }
.trust-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 16px 20px;
    background: rgba(255,255,255,0.08);
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.1);
    font-size: 0.9rem;
    color: rgba(255,255,255,0.85);
    backdrop-filter: blur(6px);
}
.trust-icon { font-size: 1.3rem; flex-shrink: 0; }

/* ==================== 响应式 ==================== */

/* 中等宽度（≤1200px）：压缩导航项，避免整条导航溢出把右侧登录按钮挤出屏幕 */
@media (max-width: 1200px) {
    .main-nav > ul { gap: 0; }
    .main-nav > ul > li > a { padding: 10px 12px; font-size: 0.88rem; }
    .nav-user { margin-left: 8px; gap: 6px; }
}

/* 窄视口（≤1080px，含投影仪常见的 1024×768）：导航收进汉堡菜单，
   「用户登录」按钮常驻 header 右侧，确保任何分辨率下都能登录 */
@media (max-width: 1080px) {
    .site-quick-login { display: inline-flex; }
    .mobile-intranet-login { display: inline-flex !important; align-items: center; margin-right: 6px; }
    .mobile-menu-toggle { display: flex; }
    /* 导航已改为浮层：让 logo 撑开剩余空间，把「用户登录」和汉堡按钮一起推到右侧 */
    .site-header .container > .logo { margin-right: auto; }
    .main-nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        width: 100%;
        background: rgba(255,255,255,0.98);
        backdrop-filter: blur(20px);
        box-shadow: 0 10px 40px rgba(0,0,0,0.1);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.4s ease;
    }
    .main-nav.open { max-height: 700px; }
    .main-nav ul { flex-direction: column; padding: 12px 0; gap: 0; }
    .main-nav ul li a { padding: 14px 28px; border-radius: 0; }
    .nav-user { margin: 12px 28px 0; flex-direction: column; }
    .nav-user .btn { width: 100%; }
}

@media (max-width: 1024px) {
    .services-grid, .knowledge-grid, .products-grid, .tools-grid { grid-template-columns: repeat(2, 1fr); }
    .advantages-grid, .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .hero .container { flex-direction: column; text-align: center; }
    .hero-content { max-width: 100%; }
    .hero-desc { margin: 0 auto 36px !important; }
    .hero-actions { justify-content: center; }
    .hero-visual { flex: 0 0 auto; width: 100%; max-width: 400px; }
    .hero-content h1 { font-size: 2.4rem; }
    .knowledge-layout { grid-template-columns: 1fr; }
    .sidebar { position: static; }
    .article-list-item { flex-direction: column; }
    .article-list-img { width: 100%; height: 180px; }
    .contact-layout { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .about-grid { grid-template-columns: 1fr; }
    .about-image { height: 320px; }
    .timeline-item:nth-child(odd) { padding-right: 55%; }
    .timeline-item:nth-child(even) { padding-left: 55%; }
    .admin-stats { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    html { font-size: 15px; }
    .top-bar { display: none; }
    /* 导航折叠为汉堡菜单、快捷登录按钮等样式已上移至 ≤1080px 断点，此处不再重复 */
    
    .services-grid, .knowledge-grid, .products-grid, .tools-grid { grid-template-columns: 1fr; }
    .advantages-grid, .stats-grid { grid-template-columns: 1fr; }
    
    .hero { padding: 60px 0 80px; }
    .hero-content h1 { font-size: 2rem; }
    .hero-visual { display: none; }
    .hero-card { display: none; }
    
    .section { padding: 60px 0; }
    .section-header { margin-bottom: 40px; }
    .section-header h2 { font-size: 1.7rem; }
    
    .footer-grid { grid-template-columns: 1fr; gap: 36px; }
    .opportunity-card { flex-direction: column; }
    .contact-info-card, .contact-form-card { padding: 28px 24px; }
    .auth-card { padding: 36px 24px; }
    .timeline::before { left: 24px; }
    .timeline-dot { left: 24px; }
    .timeline-item:nth-child(odd),
    .timeline-item:nth-child(even) { justify-content: flex-start; padding: 0 0 0 56px; }
    .timeline-content { max-width: 100%; }
    .admin-layout { flex-direction: column; }
    .admin-sidebar { width: 100%; padding: 16px 0; }
    .admin-stats { grid-template-columns: 1fr; }
    
    .about-image-badge { bottom: -10px; right: -10px; padding: 14px 20px; }
    .about-image-badge .badge-num { font-size: 1.5rem; }
    
    /* 环评页面响应式 */
    .pain-grid { grid-template-columns: 1fr; }
    .service-detail-grid { grid-template-columns: 1fr; }
    .target-grid { grid-template-columns: 1fr; }
    .advantage-grid { grid-template-columns: 1fr; }
    .process-timeline { padding-left: 50px; }
    .process-timeline::before { left: 22px; }
    .process-number { left: -50px; width: 44px; height: 44px; font-size: 1rem; }
    .eia-cta-contact { flex-direction: column; gap: 14px; align-items: center; }
    .eia-form .form-row { grid-template-columns: 1fr; }
    .eia-form-card { padding: 28px 20px; }
    .eia-trust { grid-template-columns: 1fr; }
    .eia-hero h1 { font-size: 1.8rem; }
    .eia-hero h1 span { font-size: 0.6em; }
    .eia-hero { padding: 60px 0 60px; }
}

/* ==================== 工具模态框样式 ==================== */
.tool-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.6);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    padding: 20px;
    backdrop-filter: blur(4px);
}

.tool-modal.active {
    display: flex;
}

.tool-modal-content {
    background: var(--bg);
    border-radius: var(--radius-lg);
    max-width: 700px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    padding: 36px;
    position: relative;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.tool-modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    border: none;
    background: var(--bg-secondary);
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    color: var(--text-secondary);
}

.tool-modal-close:hover {
    background: var(--primary-light);
    color: var(--primary);
}

.tool-modal-content h2 {
    font-size: 1.6rem;
    margin-bottom: 24px;
    color: var(--text);
    font-weight: 700;
}

.tool-form .form-group {
    margin-bottom: 20px;
}

.tool-form label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text);
}

.tool-form input,
.tool-form select,
.tool-form textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--border);
    border-radius: 10px;
    font-size: 0.95rem;
    font-family: inherit;
    transition: var(--transition);
    outline: none;
    background: var(--bg-secondary);
    color: var(--text);
}

.tool-form input:focus,
.tool-form select:focus,
.tool-form textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(26,138,74,0.08);
    background: var(--bg);
}

.tool-form .btn {
    width: 100%;
    margin-top: 10px;
}

.form-tip {
    font-size: 0.88rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.checkbox-group {
    display: grid;
    gap: 12px;
    margin-bottom: 20px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    border: 1.5px solid transparent;
}

.checkbox-label:hover {
    background: var(--primary-light);
    border-color: var(--primary);
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.checkbox-label span {
    font-size: 0.92rem;
    color: var(--text);
}

/* 计算结果样式 */
.calc-result {
    margin-top: 24px;
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: var(--radius);
    border-left: 4px solid var(--primary);
}

.result-box h4 {
    font-size: 1.1rem;
    margin-bottom: 16px;
    color: var(--text);
    font-weight: 700;
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-light);
}

.result-item:last-child {
    border-bottom: none;
}

.result-item .label {
    font-size: 0.92rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.result-item .value {
    font-size: 1rem;
    color: var(--text);
    font-weight: 600;
}

.result-item .value.highlight {
    color: var(--primary);
    font-size: 1.1rem;
    font-weight: 700;
}

.result-item.total {
    background: var(--primary-light);
    padding: 12px 16px;
    border-radius: 8px;
    margin: 12px 0;
}

.result-item.warning {
    background: #fef3c7;
    color: #92400e;
}

.result-item.success {
    background: #d1fae5;
    color: #065f46;
}

.result-formula {
    margin-top: 12px;
    padding: 12px;
    background: var(--bg);
    border-radius: 6px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.result-tip {
    margin-top: 12px;
    padding: 10px 14px;
    background: #eff6ff;
    border-radius: 6px;
    font-size: 0.85rem;
    color: #1e40af;
}

.result-tip.warning {
    background: #fef3c7;
    color: #92400e;
}

.characteristics-list {
    margin-top: 16px;
}

.characteristics-list ul {
    list-style: none;
    padding: 0;
    margin: 10px 0 0 0;
}

.characteristics-list li {
    padding: 8px 12px;
    margin-bottom: 6px;
    background: var(--bg);
    border-radius: 6px;
    font-size: 0.88rem;
    border-left: 3px solid var(--accent);
}

/* 标准查询表格 */
.standards-list {
    margin-top: 20px;
}

.standards-table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius);
    border: 1px solid var(--border-light);
}

.standards-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
}

.standards-table thead {
    background: var(--primary-gradient);
    color: #fff;
}

.standards-table th {
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    white-space: nowrap;
}

.standards-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-light);
    vertical-align: top;
}

.standards-table tbody tr {
    transition: var(--transition);
}

.standards-table tbody tr:hover {
    background: var(--bg-secondary);
}

.standards-table small {
    color: var(--text-muted);
    font-size: 0.8rem;
}

.no-data {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .tool-modal-content {
        padding: 24px 20px;
        max-height: 95vh;
    }
    
    .tool-modal-content h2 {
        font-size: 1.3rem;
    }
    
    .standards-table {
        font-size: 0.82rem;
    }
    
    .standards-table th,
    .standards-table td {
        padding: 8px 10px;
    }
}

/* ============================================================
   合同管理模块样式
   ============================================================ */

/* 通用徽章（前台） */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
    line-height: 1.5;
}
.badge-green  { background: #e8f5e9; color: #1b5e20; }
.badge-gray   { background: #f5f5f5; color: #666; }
.badge-red    { background: #ffebee; color: #b71c1c; }
.badge-blue   { background: #e3f2fd; color: #1565c0; }
.badge-orange { background: #fff3e0; color: #e65100; }

/* 权限提示条 */
.contract-auth-tip {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--bg-tertiary);
    border: 1px solid #bbf7d0;
    border-radius: var(--radius-sm);
    padding: 12px 18px;
    margin-bottom: 20px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}
.contract-auth-tip .lock-icon { font-size: 1.2rem; }
.contract-auth-tip strong { color: var(--primary-dark); }
.contract-auth-tip .badge { margin: 0 4px; }

/* 统计卡片 */
.contract-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}
.contract-stats .stat-card {
    background: #fff;
    padding: 22px 24px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--primary);
}
.contract-stats .stat-label {
    color: var(--text-muted);
    font-size: 0.82rem;
    margin-bottom: 8px;
}
.contract-stats .stat-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text);
}

/* ==================== 统计卡片折叠 ====================
   由 main.js 的 initStatsCollapse() 自动挂载折叠条：
   - 容器带 .contract-stats 且直接子级含 ≥2 个 .stat-card 时自动启用
   - 也可给任意统计容器加 data-stats-collapse 显式启用
   - 默认折叠，状态记录在 localStorage，跨页面共享
*/
.stats-collapse-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    padding: 8px 14px;
    margin-bottom: 14px;
    background: #fff;
    border: 1px solid var(--border);
    border-left: 4px solid var(--primary);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    user-select: none;
    -webkit-user-select: none;
    transition: background .18s ease, border-color .18s ease;
}
.stats-collapse-bar:hover { background: #f8fafc; }
.stats-collapse-bar:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

.stats-collapse-bar .scb-title {
    font-size: .84rem;
    font-weight: 700;
    color: var(--text);
    white-space: nowrap;
}

.stats-collapse-bar .scb-chips {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
    flex: 1 1 auto;
    min-width: 0;
}
/* 展开时隐藏摘要 chips，避免与卡片重复 */
.stats-collapse-bar:not(.is-collapsed) .scb-chips { display: none; }

.stats-collapse-bar .scb-chip {
    display: inline-flex;
    align-items: baseline;
    gap: 5px;
    padding: 2px 10px;
    background: #f1f5f9;
    border-radius: 999px;
    font-size: .76rem;
    color: var(--text-muted);
    white-space: nowrap;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
}
.stats-collapse-bar .scb-chip b {
    font-size: .86rem;
    font-weight: 700;
    color: var(--text);
}

.stats-collapse-bar .scb-toggle {
    margin-left: auto;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: .78rem;
    font-weight: 600;
    color: var(--primary-dark);
    white-space: nowrap;
}
.stats-collapse-bar .scb-caret {
    display: inline-block;
    font-size: .7rem;
    transition: transform .2s ease;
}
.stats-collapse-bar.is-collapsed .scb-caret { transform: rotate(-90deg); }

/* 折叠态：隐藏统计卡片本体 */
.contract-stats.is-collapsed,
[data-stats-collapse].is-collapsed { display: none !important; }

/* 首屏防闪：JS 可用时才生效（html 上的 js 类由 header.php 内联脚本添加） */
html.js.stats-collapsed .contract-stats:has(> .stat-card ~ .stat-card),
html.js.stats-collapsed [data-stats-collapse] { display: none !important; }

/* 移动端：折叠条更紧凑 */
@media (max-width: 640px) {
    .stats-collapse-bar { padding: 7px 10px; gap: 8px; }
    .stats-collapse-bar .scb-chip { padding: 1px 8px; font-size: .72rem; }
    .stats-collapse-bar .scb-chip b { font-size: .8rem; }
}

/* 工具栏 */
.contract-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}
.contract-filter {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: center;
}
.filter-input, .filter-select {
    padding: 9px 14px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-family: inherit;
    background: #fff;
    outline: none;
    transition: var(--transition);
}
.filter-input { min-width: 220px; }
.filter-input:focus, .filter-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26,138,74,0.1);
}

/* 合同列表表格 */
.contract-table-wrap {
    background: #fff;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
    overflow-x: auto;
}
.contract-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 900px;
}
.contract-table th,
.contract-table td {
    padding: 14px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-light);
    font-size: 0.9rem;
}
.contract-table th {
    background: var(--bg-secondary);
    font-weight: 600;
    color: var(--text-secondary);
    white-space: nowrap;
}
.contract-table tbody tr:hover td {
    background: var(--bg-tertiary);
}
.contract-table .td-no {
    font-family: "SF Mono", Consolas, monospace;
    font-size: 0.82rem;
    color: var(--primary-dark);
    font-weight: 600;
    white-space: nowrap;
}
.contract-table .td-title { font-weight: 500; }
.contract-table .td-amount {
    font-weight: 600;
    color: var(--accent);
    white-space: nowrap;
}
.contract-table .td-actions {
    white-space: nowrap;
    display: flex;
    gap: 6px;
}
.type-tag {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 10px;
    font-size: 0.74rem;
    font-weight: 500;
    white-space: nowrap;
}

/* 空状态 */
.contract-empty {
    text-align: center;
    padding: 70px 20px;
    color: var(--text-muted);
    background: #fff;
    border-radius: var(--radius-sm);
}

/* ===== 合同详情 ===== */
.contract-detail { max-width: 960px; margin: 0 auto; }
.detail-topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 10px;
}
.detail-topbar-right {
    display: flex;
    gap: 10px;
    align-items: center;
}
.detail-card {
    background: #fff;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
    padding: 28px 32px;
    margin-bottom: 20px;
}
.detail-card-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    flex-wrap: wrap;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--border-light);
    margin-bottom: 22px;
}
.detail-card-head h2 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text);
    margin: 0;
}
.detail-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 18px 24px;
}
.detail-item { display: flex; flex-direction: column; gap: 4px; }
.detail-label {
    color: var(--text-muted);
    font-size: 0.8rem;
}
.detail-value {
    color: var(--text);
    font-size: 0.95rem;
    font-weight: 500;
}
.detail-amount {
    color: var(--accent);
    font-size: 1.15rem;
    font-weight: 700;
}
.detail-section-title {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 14px;
    color: var(--primary-dark);
    padding-left: 12px;
    border-left: 3px solid var(--primary);
}
.detail-content {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 0.92rem;
}
.detail-empty {
    color: var(--text-muted);
    font-size: 0.9rem;
}
.attachment-link {
    display: inline-block;
    padding: 10px 16px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    color: var(--primary-dark);
    font-weight: 500;
    transition: var(--transition);
}
.attachment-link:hover {
    background: var(--primary-light);
    transform: translateY(-1px);
}
.status-change-form form {
    display: flex;
    gap: 10px;
    align-items: center;
}
.log-list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.log-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-light);
    font-size: 0.86rem;
    flex-wrap: wrap;
}
.log-item:last-child { border-bottom: none; }
.log-user { font-weight: 600; color: var(--text); }
.log-detail { color: var(--text-secondary); flex: 1; min-width: 150px; }
.log-time { color: var(--text-muted); font-size: 0.8rem; }

/* ===== 合同表单 ===== */
.contract-form-wrap { max-width: 860px; margin: 0 auto; }
.contract-form { background: #fff; }
.form-section {
    background: #fff;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
    padding: 28px 32px;
    margin-bottom: 20px;
}
.form-section-title {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 18px;
    color: var(--primary-dark);
    padding-left: 12px;
    border-left: 3px solid var(--primary);
}
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 18px 24px;
}
.contract-form .form-group { margin-bottom: 16px; }
.contract-form .form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    font-size: 0.88rem;
    color: var(--text);
}
.contract-form .form-group .req { color: #e53935; }
.contract-form .form-group input,
.contract-form .form-group select,
.contract-form .form-group textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.93rem;
    font-family: inherit;
    outline: none;
    transition: var(--transition);
    background: #fff;
}
.contract-form .form-group input:focus,
.contract-form .form-group select:focus,
.contract-form .form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26,138,74,0.1);
}
.contract-form .form-group textarea {
    min-height: 100px;
    resize: vertical;
}
.current-attachment {
    padding: 10px 14px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    font-size: 0.88rem;
    color: var(--primary-dark);
}
.form-actions {
    display: flex;
    gap: 14px;
    justify-content: center;
    margin-top: 10px;
}

@media (max-width: 768px) {
    .contract-toolbar { flex-direction: column; align-items: stretch; }
    .filter-input { min-width: 0; width: 100%; }
    .contract-filter { flex-direction: column; align-items: stretch; }
    .contract-filter .btn { width: 100%; }
    .detail-card, .form-section { padding: 20px 18px; }
    .detail-grid { grid-template-columns: 1fr 1fr; }
    .form-grid { grid-template-columns: 1fr; }
}

/* ==================== 合同管理增强 v2 ==================== */

.detail-tags .type-tag,
td .type-tag {
    margin-right: 4px;
    margin-bottom: 2px;
}

/* 子导航条 */
.contract-subnav {
    background: #fff;
    border-bottom: 1px solid #e5e7eb;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}
.contract-subnav ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 4px;
    flex-wrap: wrap;
}
.contract-subnav li a {
    display: block;
    padding: 12px 18px;
    color: #64748b;
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 500;
    border-bottom: 3px solid transparent;
    transition: all 0.15s;
}
.contract-subnav li a:hover {
    color: var(--primary);
    background: rgba(26,138,74,0.05);
}
.contract-subnav li.active a {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

/* 合同明细动态表格 */
.items-table {
    width: 100%;
    border-collapse: collapse;
    margin: 12px 0;
    background: #fff;
    border-radius: 6px;
    overflow: hidden;
    border: 1px solid #e5e7eb;
}
.items-table th,
.items-table td {
    padding: 10px 12px;
    text-align: left;
    border-bottom: 1px solid #e5e7eb;
    font-size: 0.9rem;
}
.items-table th {
    background: #f8fafc;
    color: #64748b;
    font-weight: 600;
    font-size: 0.82rem;
}
.items-table td input,
.items-table td select {
    width: 100%;
    padding: 6px 8px;
    border: 1px solid #d1d5db;
    border-radius: 4px;
    font-size: 0.9rem;
    box-sizing: border-box;
}
.items-table td input:focus,
.items-table td select:focus {
    border-color: var(--primary);
    outline: none;
    box-shadow: 0 0 0 2px rgba(26,138,74,0.12);
}
.items-table tfoot td {
    background: #f8fafc;
    font-weight: 600;
}
.btn-del-row {
    background: none;
    border: 1px solid #e5e7eb;
    color: #e53935;
    width: 30px;
    height: 30px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.15s;
}
.btn-del-row:hover {
    background: #fef2f2;
    border-color: #e53935;
}
.items-total-row {
    margin-top: 10px;
    padding: 10px 14px;
    background: #f0fdf4;
    border: 1px dashed #86efac;
    border-radius: 6px;
    text-align: right;
    font-size: 1rem;
}
.items-total-row strong {
    color: var(--accent);
    font-size: 1.15rem;
}

.form-section-hint {
    display: block;
    font-size: 0.82rem;
    color: #64748b;
    font-weight: 400;
    margin-top: 4px;
}

/* 收支与履约汇总卡片 */
.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    margin-top: 8px;
}
.summary-card {
    display: block;
    padding: 18px 16px;
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.18s;
    border-left: 4px solid #e5e7eb;
}
.summary-card:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    transform: translateY(-2px);
}
.summary-payable  { border-left-color: #1a8a4a; }
.summary-expense  { border-left-color: #e53935; }
.summary-delivery { border-left-color: #1565c0; }
.summary-profit   { border-left-color: #ef6c00; }
.summary-card-label {
    font-size: 0.82rem;
    color: #64748b;
    margin-bottom: 6px;
}
.summary-card-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1f2937;
    line-height: 1.2;
}
.summary-card-sub {
    font-size: 0.78rem;
    color: #64748b;
    margin-top: 4px;
}

/* 后台权限复选框组 */
.perm-checks {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    padding: 8px 0;
}
.perm-checks label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.9rem;
    cursor: pointer;
    color: #1f2937;
}
.perm-checks input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
}

@media (max-width: 768px) {
    .contract-subnav ul { flex-direction: column; }
    .contract-subnav li a { padding: 10px 14px; border-bottom: 1px solid #e5e7eb; }
    .contract-subnav li.active a { border-bottom-color: var(--primary); }
    .summary-grid { grid-template-columns: 1fr 1fr; }
}

/* ===== 收款查询筛选增强 ===== */
.filter-info-bar {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    background: #eef6ff;
    border: 1px solid #cfe3fb;
    border-radius: 8px;
    padding: 10px 16px;
    margin-bottom: 16px;
    font-size: 0.9rem;
    color: #1e40af;
}
.filter-info-bar .filter-chip {
    display: inline-flex;
    align-items: center;
    background: #fff;
    border: 1px solid #bcd4f7;
    border-radius: 14px;
    padding: 2px 12px;
    font-size: 0.82rem;
    color: #1e40af;
}
.filter-info-bar .filter-clear {
    margin-left: auto;
    color: #e53935;
    text-decoration: none;
    font-size: 0.82rem;
}
.filter-info-bar .filter-clear:hover { text-decoration: underline; }

.contract-filter .date-range-group {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.contract-filter .date-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    white-space: nowrap;
}
.contract-filter .date-sep {
    color: var(--text-muted);
    font-size: 0.85rem;
}
.contract-filter .quick-range {
    display: inline-flex;
    gap: 4px;
    padding-left: 4px;
    border-left: 1px solid #e5e7eb;
    margin-left: 4px;
}
.btn-xs {
    padding: 3px 8px !important;
    font-size: 0.75rem !important;
    line-height: 1.4 !important;
    border-radius: 4px !important;
}
.filter-hint {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin: 6px 0 0 2px;
}
/* 未收款卡片强调 */
.stat-card-unpaid {
    background: linear-gradient(135deg, #fff5f5 0%, #fff 100%);
    border: 1px solid #f5c6c6;
}
.stat-card-unpaid .stat-value {
    display: flex;
    align-items: center;
    gap: 8px;
}
.stat-tag {
    display: inline-block;
    font-size: 0.7rem;
    padding: 2px 8px;
    border-radius: 10px;
    background: #1a8a4a;
    color: #fff;
    font-weight: 500;
}
@media (max-width: 768px) {
    .contract-filter { flex-direction: column; align-items: stretch; }
    .contract-filter .quick-range { border-left: none; padding-left: 0; margin-left: 0; flex-wrap: wrap; }
    .contract-filter .date-range-group { flex-wrap: wrap; }
}


/* ============================================================
   报销审批工作流样式
   ============================================================ */

/* 报销详情双栏布局 */
.expense-detail-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 20px;
    align-items: start;
}
.expense-detail-main { min-width: 0; }
.expense-detail-side { display: flex; flex-direction: column; gap: 16px; }

/* 支出归属切换器 */
.target-type-switch {
    display: flex;
    gap: 12px;
}
.target-option {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 14px 16px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    font-weight: 500;
    background: #fff;
}
.target-option:hover { border-color: var(--primary); }
.target-option.active {
    border-color: var(--primary);
    background: #e8f5e9;
    color: var(--primary);
}
.target-option input[type="radio"] { margin-right: 8px; }

/* 审批流程时间线 */
.approval-timeline {
    position: relative;
    padding-left: 8px;
    margin-top: 8px;
}
.timeline-node {
    position: relative;
    padding: 0 0 28px 48px;
}
.timeline-node:last-child { padding-bottom: 0; }
.timeline-node::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 36px;
    bottom: 0;
    width: 2px;
    background: #e0e0e0;
}
.timeline-node:last-child::before { display: none; }
.timeline-node.done::before { background: #1a8a4a; }
.timeline-node.current::before { background: #f57c00; }
.timeline-node.rejected::before { background: #e53935; }
.timeline-node.cancelled::before { background: #bdbdbd; }

.timeline-dot {
    position: absolute;
    left: 0;
    top: 0;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #fff;
    border: 2px solid #e0e0e0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    z-index: 1;
}
.timeline-node.done .timeline-dot { border-color: #1a8a4a; background: #e8f5e9; }
.timeline-node.current .timeline-dot { border-color: #f57c00; background: #fff3e0; }
.timeline-node.rejected .timeline-dot { border-color: #e53935; background: #ffebee; }
.timeline-node.cancelled .timeline-dot { border-color: #9e9e9e; background: #f5f5f5; }

.timeline-title {
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 4px;
    color: #333;
}
.timeline-meta {
    font-size: 0.82rem;
    color: var(--text-muted);
}
.timeline-note {
    font-size: 0.85rem;
    color: #555;
    margin-top: 6px;
    padding: 8px 12px;
    background: #f8f9fa;
    border-radius: 6px;
    border-left: 3px solid #e0e0e0;
}

/* alert 补充 */
.alert-warning {
    background: #fff8e1;
    color: #8d6e63;
    padding: 12px 16px;
    border-radius: 6px;
    border-left: 4px solid #f57c00;
}
.alert-error {
    background: #ffebee;
    color: #b71c1c;
    padding: 12px 16px;
    border-radius: 6px;
}
.alert-success {
    background: #e8f5e9;
    color: #1b5e20;
    padding: 12px 16px;
    border-radius: 6px;
}

/* 响应式 */
@media (max-width: 768px) {
    .expense-detail-layout { grid-template-columns: 1fr; }
    .target-type-switch { flex-direction: column; }
    .expense-detail-side { order: -1; }
}

/* ============================================================
   报销凭据附件 - 上传与展示
   ============================================================ */
.attachment-upload-area {
    border: 2px dashed #c5e0cd;
    border-radius: 8px;
    padding: 18px;
    background: #fafdfb;
    transition: border-color 0.2s, background 0.2s;
}
.attachment-upload-area:hover {
    border-color: var(--primary, #2d8c4a);
    background: #f4fbf6;
}
.attachment-upload-area input[type="file"] {
    width: 100%;
    padding: 8px;
    background: #fff;
    border-radius: 6px;
    border: 1px solid #e0e0e0;
    cursor: pointer;
    font-size: 0.9rem;
}
.attachment-upload-hint {
    color: var(--text-muted, #888);
    font-size: 0.82rem;
    margin-top: 8px;
}
.attachment-preview-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 12px;
}

/* 凭据照片缩略图（预览 + 已上传展示通用） */
.attachment-thumb {
    position: relative;
    display: inline-flex;
    flex-direction: column;
    width: 110px;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    overflow: hidden;
    background: #fff;
    text-decoration: none;
    transition: box-shadow 0.2s, transform 0.15s;
}
.attachment-thumb:hover {
    box-shadow: 0 3px 10px rgba(0,0,0,0.15);
    transform: translateY(-2px);
}
.attachment-thumb img {
    width: 100%;
    height: 100px;
    object-fit: cover;
    display: block;
    background: #f5f5f5;
}
.att-thumb-del {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 20px;
    height: 20px;
    line-height: 18px;
    text-align: center;
    background: rgba(0,0,0,0.55);
    color: #fff;
    border-radius: 50%;
    font-size: 14px;
    cursor: pointer;
    user-select: none;
}
.att-thumb-del:hover { background: rgba(229,57,53,0.85); }
.att-thumb-name {
    font-size: 0.72rem;
    color: #666;
    padding: 4px 6px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    background: #fafafa;
    border-top: 1px solid #eee;
}

/* 凭据照片网格（详情页展示） */
.attachment-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 8px;
}
.attachment-grid .attachment-thumb {
    width: 130px;
}
.attachment-grid .attachment-thumb img {
    height: 120px;
}

/* ============================================================
   后台用户授权区域 - 权限独立布局
   ============================================================ */
.perm-block {
    background: #f8fbf9;
    border: 1px solid #e3efe7;
    border-radius: 8px;
    padding: 18px 20px !important;
}
.perm-block-title {
    font-size: 1rem;
    font-weight: 700;
    color: #1a4d2e;
    margin-bottom: 6px;
}
.perm-tip {
    display: block;
    color: #555;
    font-size: 0.84rem;
    line-height: 1.6;
    background: #eef7f0;
    border-left: 3px solid #2d8c4a;
    padding: 8px 12px;
    border-radius: 4px;
    margin-bottom: 16px;
}
.perm-row {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 10px 0;
    border-top: 1px solid #eef2ef;
}
.perm-row:first-of-type { border-top: none; }
.perm-row-label {
    flex: 0 0 110px;
    font-weight: 600;
    font-size: 0.88rem;
    color: #333;
    padding-top: 2px;
}
.perm-row .perm-checks {
    flex: 1;
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}
.perm-row .perm-checks label {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 0.88rem;
    color: #444;
    cursor: pointer;
    white-space: nowrap;
}
.perm-row .perm-checks input[type="checkbox"] {
    margin: 0;
    cursor: pointer;
}
.perm-row .perm-checks input[type="checkbox"]:disabled {
    cursor: not-allowed;
}

@media (max-width: 768px) {
    .perm-row {
        flex-direction: column;
        gap: 8px;
    }
    .perm-row-label {
        flex: none;
    }
    .attachment-thumb, .attachment-grid .attachment-thumb {
        width: 90px;
    }
    .attachment-thumb img, .attachment-grid .attachment-thumb img {
        height: 80px;
    }
}


/* ==================== 站内公告栏 ==================== */
.announce-section { padding: 68px 0 76px; }

.announce-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}
/* 只有一条公告时占据整行，避免孤零零半个宽度 */
.announce-grid .announce-card:only-child { grid-column: 1 / -1; }

.announce-card {
    position: relative;
    display: flex;
    flex-direction: column;
    background: var(--bg);
    border: 1px solid var(--border-light);
    border-left: 4px solid var(--primary);
    border-radius: var(--radius);
    padding: 24px 26px 20px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.announce-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-left-color: var(--primary-dark);
}
.announce-card.is-top {
    border-left-color: var(--accent);
    background: linear-gradient(180deg, var(--accent-light) 0%, var(--bg) 42%);
}

.announce-card .announce-head {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 10px;
}
.announce-card .announce-date {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-left: auto;
    white-space: nowrap;
}
.announce-card h3 {
    font-size: 1.08rem;
    font-weight: 700;
    line-height: 1.55;
    margin-bottom: 10px;
}
.announce-card h3 a { color: var(--text); }
.announce-card h3 a:hover { color: var(--primary); }
.announce-card .announce-summary {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.75;
    flex: 1;
    /* 最多 3 行，超出省略 */
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.announce-card .announce-foot {
    margin-top: 16px;
    padding-top: 14px;
    border-top: 1px dashed var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.83rem;
    color: var(--text-muted);
}
.announce-card .announce-more {
    font-weight: 600;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 4px;
}
.announce-card .announce-more::after {
    content: '→';
    transition: transform 0.3s ease;
}
.announce-card:hover .announce-more::after { transform: translateX(4px); }

/* 角标 */
.announce-badge {
    display: inline-block;
    padding: 2px 9px;
    border-radius: 50px;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.4px;
    line-height: 1.7;
}
.announce-badge.badge-top { background: var(--accent); color: #fff; }
.announce-badge.badge-new { background: #dc2626; color: #fff; }
.announce-badge.badge-cat { background: var(--primary-light); color: var(--primary); }

/* 空状态 */
.announce-empty {
    text-align: center;
    padding: 48px 24px;
    background: var(--bg);
    border: 1px dashed var(--border);
    border-radius: var(--radius);
    color: var(--text-muted);
}
.announce-empty .ae-icon { font-size: 2.6rem; margin-bottom: 12px; }

/* ---- 公告详情页 ---- */
.announce-detail-wrap {
    max-width: 860px;
    margin: 0 auto;
    background: var(--bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    padding: 44px 48px 40px;
    border: 1px solid var(--border-light);
}
.announce-detail-head {
    padding-bottom: 22px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 28px;
}
.announce-detail-head h1 {
    font-size: 1.75rem;
    font-weight: 800;
    line-height: 1.45;
    margin: 12px 0 14px;
    letter-spacing: -0.2px;
}
.announce-detail-meta {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
    font-size: 0.85rem;
    color: var(--text-muted);
}
.announce-detail-body {
    font-size: 1rem;
    line-height: 2;
    color: var(--text-secondary);
    word-wrap: break-word;
    overflow-wrap: break-word;
}
.announce-detail-body p { margin-bottom: 16px; }
.announce-detail-body h3,
.announce-detail-body h4 { color: var(--text); margin: 24px 0 12px; font-weight: 700; }
.announce-detail-body ul,
.announce-detail-body ol { margin: 0 0 16px 22px; }
.announce-detail-body li { margin-bottom: 6px; }
.announce-detail-body a { text-decoration: underline; }
.announce-detail-body img { max-width: 100%; height: auto; border-radius: var(--radius-sm); }
.announce-detail-body blockquote {
    margin: 18px 0;
    padding: 14px 20px;
    background: var(--bg-secondary);
    border-left: 4px solid var(--primary);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    color: var(--text-secondary);
}
.announce-detail-body code {
    background: var(--bg-secondary);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.9em;
    font-family: Consolas, Monaco, monospace;
}
.announce-detail-body pre {
    background: var(--bg-secondary);
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    overflow-x: auto;
    margin-bottom: 16px;
}
.announce-detail-body table { width: 100%; border-collapse: collapse; margin-bottom: 16px; font-size: 0.92rem; }
.announce-detail-body th,
.announce-detail-body td { border: 1px solid var(--border); padding: 8px 12px; text-align: left; }

.announce-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 32px;
}
.announce-nav a {
    display: block;
    padding: 14px 18px;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    color: var(--text-secondary);
    border: 1px solid transparent;
}
.announce-nav a:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); }
.announce-nav a .an-label { display: block; font-size: 0.75rem; color: var(--text-muted); margin-bottom: 4px; }
.announce-nav a.an-next { text-align: right; }

@media (max-width: 1024px) {
    .announce-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
    .announce-section { padding: 48px 0 56px; }
    .announce-card { padding: 20px 20px 16px; }
    .announce-detail-wrap { padding: 28px 20px 26px; }
    .announce-detail-head h1 { font-size: 1.35rem; }
    .announce-nav { grid-template-columns: 1fr; }
    .announce-nav a.an-next { text-align: left; }
}

/* ==================== 办公门户（规章 / 工作台 / 议事厅） ==================== */
.portal-toolbar { display:flex; justify-content:space-between; align-items:center; gap:16px; flex-wrap:wrap; margin-bottom:24px; }
.portal-tabs { display:flex; gap:8px; flex-wrap:wrap; }
.portal-tabs a { padding:7px 18px; border-radius:20px; font-size:.9rem; color:var(--text-muted); background:var(--bg-secondary); border:1px solid var(--border-light); text-decoration:none; transition:var(--transition); }
.portal-tabs a.active, .portal-tabs a:hover { background:var(--primary); color:#fff; border-color:var(--primary); }
.portal-card { background:var(--bg); border:1px solid var(--border-light); border-radius:var(--radius); box-shadow:var(--shadow); padding:26px; margin-bottom:24px; }
.portal-card > h3 { display:flex; align-items:center; gap:8px; margin:0 0 18px; font-size:1.08rem; }
.portal-card .card-extra { margin-left:auto; font-size:.85rem; }

/* 议事厅时间线（左对齐信息流） */
.dtn-feed { position:relative; padding-left:26px; }
.dtn-feed::before { content:''; position:absolute; left:8px; top:6px; bottom:6px; width:2px; background:var(--border-light); }
.dtn-item { position:relative; margin-bottom:18px; }
.dtn-item::before { content:''; position:absolute; left:-24px; top:22px; width:10px; height:10px; border-radius:50%; background:var(--primary); box-shadow:0 0 0 3px var(--primary-light); }
.dtn-item.is-reply::before { background:#94a3b8; box-shadow:0 0 0 3px #e2e8f0; }
.dtn-card { background:var(--bg); border:1px solid var(--border-light); border-radius:var(--radius); padding:18px 22px; box-shadow:var(--shadow); }
.dtn-head { display:flex; align-items:center; gap:10px; flex-wrap:wrap; margin-bottom:8px; font-size:.88rem; color:var(--text-muted); }
.dtn-avatar { width:34px; height:34px; border-radius:50%; background:var(--primary); color:#fff; display:inline-flex; align-items:center; justify-content:center; font-size:.85rem; font-weight:600; flex:none; }
.dtn-title { font-weight:600; color:var(--text); }
.dtn-content { color:var(--text); line-height:1.7; white-space:pre-wrap; word-break:break-word; }
.dtn-actions { display:flex; gap:10px; margin-top:12px; align-items:center; flex-wrap:wrap; }
.dtn-reply-form { margin-top:14px; padding-top:14px; border-top:1px dashed var(--border-light); }
.dtn-reply-form textarea { min-height:70px; }

/* 规章章节编辑 */
.reg-chapter-row { display:grid; grid-template-columns:120px 220px 1fr auto; gap:10px; margin-bottom:10px; align-items:start; }
.reg-chapter-row textarea { min-height:80px; }
.reg-chapter-row .row-del { margin-top:6px; }
@media (max-width:900px){ .reg-chapter-row { grid-template-columns:1fr 1fr; } }

/* 规章详情章节导航 */
.reg-detail-grid { display:grid; grid-template-columns:220px 1fr; gap:28px; align-items:start; }
@media (max-width:900px){ .reg-detail-grid { grid-template-columns:1fr; } .chap-nav { position:static; } }
.chap-nav { position:sticky; top:12px; background:var(--bg); border:1px solid var(--border-light); border-radius:var(--radius); padding:14px 6px; box-shadow:var(--shadow); }
.chap-nav .chap-nav-title { font-weight:600; padding:0 10px 8px; font-size:.92rem; }
.chap-nav a { display:block; padding:6px 10px; color:var(--text-muted); font-size:.88rem; text-decoration:none; border-left:2px solid transparent; }
.chap-nav a:hover { color:var(--primary); border-left-color:var(--primary); }
.reg-chapter { margin-bottom:28px; }
.reg-chapter h4 { color:var(--primary); margin:0 0 10px; }
.reg-chapter .reg-chapter-body { line-height:1.8; color:var(--text); }

/* 工作台 */
/* 顶部两卡：我的功能(左) + 今日考勤(右) */
.wb-top-grid { display:grid; grid-template-columns:minmax(0,1.7fr) minmax(0,1fr); gap:24px; align-items:stretch; margin-bottom:24px; }
.wb-top-grid .portal-card { height:100%; margin-bottom:0; }
@media (max-width:900px){ .wb-top-grid { grid-template-columns:1fr; } }

.wb-grid { display:grid; grid-template-columns:1fr 1fr; gap:24px; align-items:stretch; margin-bottom:24px; }
.wb-grid .portal-card { height:100%; margin-bottom:0; }
@media (max-width:900px){ .wb-grid { grid-template-columns:1fr; } }
.todo-item { display:flex; align-items:flex-start; gap:10px; padding:12px 4px; border-bottom:1px dashed var(--border-light); }
.todo-item:last-child { border-bottom:none; }
.todo-item.done .todo-title { text-decoration:line-through; color:var(--text-muted); }
.todo-title { font-weight:500; }
.todo-meta { font-size:.8rem; color:var(--text-muted); }
.msg-item { padding:14px 8px; border-bottom:1px dashed var(--border-light); border-radius:8px; }
.msg-item.unread { background:linear-gradient(90deg, rgba(59,130,246,.07), transparent); }
.msg-item:last-child { border-bottom:none; }
.msg-title { font-weight:600; }
.msg-meta { font-size:.8rem; color:var(--text-muted); margin-top:4px; }
.punch-box { display:flex; align-items:center; gap:18px; flex-wrap:wrap; }
.punch-time { font-size:1.7rem; font-weight:700; font-variant-numeric:tabular-nums; }
.punch-state { font-size:.9rem; color:var(--text-muted); }

/* 工作台「我的功能」按权限动态生成的入口 */
.wb-entries { display:grid; grid-template-columns:repeat(auto-fill, minmax(170px, 1fr)); gap:12px; }
.wb-entry { display:flex; align-items:center; gap:10px; padding:12px 14px; border:1px solid var(--border-light); border-radius:10px; text-decoration:none; color:var(--text); transition:border-color .15s, background .15s, transform .15s; }
.wb-entry:hover { border-color:var(--primary); background:linear-gradient(135deg, rgba(59,130,246,.06), transparent); transform:translateY(-2px); }
.wb-entry-icon { font-size:1.35rem; line-height:1; }
.wb-entry-label { display:block; font-weight:600; font-size:.93rem; }
.wb-entry-desc { display:block; color:var(--text-muted); font-size:.76rem; margin-top:2px; }
@media (max-width: 600px) { .wb-entries { grid-template-columns:repeat(2, 1fr); } }

/* ==================== 低高度视口适配（投影仪 / 矮屏笔记本） ====================
   放在文件末尾以确保覆盖上方各断点的 .auth-card 内边距等规则。
   目的：矮屏幕下压缩登录卡片，保证用户名、密码、登录按钮同屏可见。 */
@media (max-height: 820px) {
    .auth-page { padding: 24px 16px; }
    .auth-card { padding: 26px 30px; }
    .auth-card h2 { font-size: 1.4rem; margin-bottom: 6px; }
    .auth-card .auth-subtitle { margin-bottom: 18px; }
    .auth-logo-emoji { font-size: 1.4rem !important; margin-bottom: 10px !important; }
    .form-group { margin-bottom: 16px; }
    .form-group.remember-row { margin-bottom: 14px; }
}

/* 极低视口（800×600 等老式投影）：进一步精简，优先保证表单与登录按钮可见 */
@media (max-height: 620px) {
    .auth-page { padding: 12px 12px; }
    .auth-card { padding: 16px 22px; }
    .auth-card .auth-subtitle { display: none; }
    .auth-logo-emoji { display: none; }
    .auth-card h2 { font-size: 1.2rem; margin-bottom: 12px; }
    .auth-back-home { position: static; display: inline-block; margin-bottom: 10px; }
    .form-group { margin-bottom: 10px; }
    .form-group label { margin-bottom: 4px; }
    .form-group input { padding: 9px 12px; font-size: 0.9rem; }
    .form-group .btn { padding: 10px; }
    .form-group.remember-row { margin-bottom: 10px; }
    .auth-links { margin-top: 12px; }
}