:root {
    --primary: #1B3A5C;
    --primary-dark: #14304E;
    --accent: #E8853A;
    --accent-dark: #D67324;
    --bg: #F2F6FA;
    --bg-light: #EDF2F7;
    --card-bg: #FFFFFF;
    --text-main: #2B3A4A;
    --text-sub: #5A6B7B;
    --text-mute: #8A9AAB;
    --border: #DCE4EE;
    --radius-lg: 16px;
    --radius-md: 12px;
    --radius-sm: 6px;
    --shadow: 0 4px 20px rgba(27,58,92,0.08);
    --shadow-hover: 0 8px 30px rgba(27,58,92,0.14);
    --transition: 0.25s ease;
    --sidebar-width: 260px;
    --font-num: "DIN Alternate", "Bebas Neue", "Oswald", sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--text-main);
    line-height: 1.75;
    font-size: 15px;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
button { background: none; border: none; cursor: pointer; font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
section { position: relative; }

/* ============ 侧边导航 ============ */
.side-nav {
    position: fixed;
    left: 0; top: 0; bottom: 0;
    width: var(--sidebar-width);
    background: linear-gradient(180deg, #1B3A5C 0%, #163048 100%);
    color: #fff;
    z-index: 100;
    display: flex;
    flex-direction: column;
    padding: 32px 24px 24px;
    transition: width 0.3s ease;
}
.side-brand { display: flex; align-items: center; gap: 12px; padding-bottom: 28px; border-bottom: 1px solid rgba(255,255,255,0.12); margin-bottom: 24px; }
.side-brand-icon {
    width: 46px; height: 46px; background: var(--accent); border-radius: 10px;
    display: flex; align-items: center; justify-content: center; font-size: 20px; color: #fff; flex-shrink: 0;
    box-shadow: 0 4px 14px rgba(232,133,58,0.4);
}
.side-brand-text h3 { font-size: 16px; font-weight: 700; line-height: 1.35; color: #fff; letter-spacing: 0.02em; }
.side-brand-text p { font-size: 12px; color: rgba(255,255,255,0.6); margin-top: 2px; letter-spacing: 0.05em; }
.side-links { flex: 1; display: flex; flex-direction: column; }
.side-links a {
    display: flex; align-items: center; gap: 14px; padding: 9px 14px;
    color: rgba(255,255,255,0.75); font-size: 15px; line-height: 2.4;
    border-left: 3px solid transparent; transition: all 0.25s ease; border-radius: 0 8px 8px 0; margin-bottom: 2px;
}
.side-links a:hover, .side-links a.active { background: rgba(255,255,255,0.08); border-left-color: var(--accent); color: #fff; }
.side-links a i { width: 22px; text-align: center; font-size: 16px; }
.side-links a span { white-space: nowrap; }
.side-bottom { border-top: 1px solid rgba(255,255,255,0.12); padding-top: 18px; }
.side-phone-btn {
    display: flex; align-items: center; justify-content: center; gap: 10px;
    background: var(--accent); color: #fff; padding: 12px 16px; border-radius: 8px;
    font-size: 15px; font-weight: 600; transition: all 0.3s ease;
}
.side-phone-btn:hover { background: var(--accent-dark); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(232,133,58,0.35); }
.side-phone-btn i { font-size: 16px; }
.side-phone-btn span { white-space: nowrap; }
.side-hours { font-size: 12px; color: rgba(255,255,255,0.5); text-align: center; margin-top: 14px; line-height: 1.6; }

/* ============ 移动端导航 ============ */
.mobile-nav { display: none; position: fixed; top: 0; left: 0; right: 0; background: var(--primary); z-index: 200; padding: 12px 20px; align-items: center; justify-content: space-between; box-shadow: 0 2px 12px rgba(0,0,0,0.15); }
.mobile-brand { display: flex; align-items: center; gap: 10px; color: #fff; }
.mobile-brand-icon { width: 36px; height: 36px; background: var(--accent); border-radius: 8px; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 15px; }
.mobile-brand span { font-size: 16px; font-weight: 700; white-space: nowrap; }
.mobile-hamburger { background: none; border: none; color: #fff; font-size: 24px; cursor: pointer; padding: 6px; line-height: 1; }
.mobile-menu { display: none; position: fixed; top: 60px; left: 0; right: 0; background: var(--primary); padding: 12px 20px 24px; z-index: 199; box-shadow: 0 10px 30px rgba(0,0,0,0.25); }
.mobile-menu.open { display: block; }
.mobile-menu a { display: block; color: rgba(255,255,255,0.85); padding: 13px 8px; font-size: 15px; border-bottom: 1px solid rgba(255,255,255,0.07); transition: background 0.2s ease; }
.mobile-menu a:hover { background: rgba(255,255,255,0.06); }
.mobile-menu .m-phone { display: block; background: var(--accent); color: #fff; text-align: center; padding: 12px; border-radius: 8px; margin-top: 16px; font-weight: 600; }
.mobile-close { position: absolute; top: 12px; right: 20px; background: none; border: none; color: rgba(255,255,255,0.6); font-size: 20px; cursor: pointer; }

/* ============ 右侧主内容 ============ */
.main-wrap { margin-left: var(--sidebar-width); transition: margin-left 0.3s ease; }

/* ============ Hero ============ */
.hero { padding: 90px 0 100px; background: linear-gradient(135deg, #EDF2F7 0%, #DCE7F3 55%, #C9DCF0 100%); overflow: hidden; }
.hero-bg { position: absolute; inset: 0; background-image: url('/assets/images/backpic/back-1.jpg'); background-size: cover; background-position: center; opacity: 0.12; }
.hero::after { content: ''; position: absolute; right: -80px; bottom: -80px; width: 300px; height: 300px; border: 40px solid rgba(27,58,92,0.04); border-radius: 50%; }
.hero .container { position: relative; z-index: 2; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(232,133,58,0.12); border: 1px solid rgba(232,133,58,0.3); color: var(--accent-dark); padding: 6px 18px; border-radius: 999px; font-size: 13px; font-weight: 600; margin-bottom: 24px; letter-spacing: 0.03em; }
.hero h1 { font-size: 38px; line-height: 1.22; font-weight: 800; letter-spacing: -0.5px; color: var(--primary); margin-bottom: 18px; max-width: 620px; }
.hero h1 .highlight { color: var(--accent); }
.hero-sub { font-size: 16px; color: var(--text-sub); line-height: 1.8; max-width: 540px; margin-bottom: 26px; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 20px; margin-bottom: 34px; }
.hero-meta-item { display: flex; align-items: center; gap: 8px; color: var(--text-main); font-size: 14px; }
.hero-meta-item i { color: var(--accent); font-size: 17px; }
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 13px 28px; border-radius: var(--radius-sm); font-size: 15px; font-weight: 600; border: 2px solid transparent; transition: all 0.3s ease; line-height: 1.4; }
.btn:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,0,0,0.1); }
.btn:focus, .mobile-hamburger:focus { outline: 3px solid rgba(232,133,58,0.35); outline-offset: 2px; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); box-shadow: 0 8px 24px rgba(27,58,92,0.3); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: var(--accent-dark); box-shadow: 0 8px 24px rgba(232,133,58,0.35); }
.btn-outline { background: #fff; color: var(--primary); border-color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-large { padding: 16px 36px; font-size: 16px; }

.hero-compare { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin-top: 10px; }
.compare-card { background: #fff; border-radius: var(--radius-md); padding: 28px 26px; box-shadow: var(--shadow); border: 1px solid var(--border); position: relative; transition: all 0.3s ease; }
.compare-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.compare-card.featured { border: 2px solid var(--accent); box-shadow: 0 10px 40px rgba(232,133,58,0.18); transform: translateY(-8px); }
.compare-card.featured:hover { transform: translateY(-12px); box-shadow: 0 14px 44px rgba(232,133,58,0.22); }
.compare-tag { position: absolute; top: -12px; right: 18px; background: var(--accent); color: #fff; font-size: 12px; font-weight: 700; padding: 4px 16px; border-radius: 999px; letter-spacing: 0.05em; box-shadow: 0 4px 10px rgba(232,133,58,0.3); }
.compare-card h4 { font-size: 18px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.compare-card .price { font-family: var(--font-num); font-size: 42px; font-weight: 700; color: var(--text-main); line-height: 1.1; margin-bottom: 4px; }
.compare-card .price span { font-size: 15px; color: var(--text-mute); font-weight: 400; font-family: inherit; }
.compare-card ul { margin-top: 14px; }
.compare-card ul li { display: flex; align-items: center; gap: 8px; padding: 4px 0; font-size: 14px; color: var(--text-sub); }
.compare-card ul li i { color: var(--accent); font-size: 13px; }
.compare-note { margin-top: 14px; font-size: 12px; color: var(--text-mute); border-top: 1px dashed var(--border); padding-top: 12px; }
.compare-btn { display: block; text-align: center; background: var(--primary); color: #fff; padding: 11px 16px; border-radius: var(--radius-sm); font-size: 14px; font-weight: 600; margin-top: 16px; transition: all 0.3s ease; }
.compare-btn:hover { background: var(--primary-dark); }
.compare-card.featured .compare-btn { background: var(--accent); }
.compare-card.featured .compare-btn:hover { background: var(--accent-dark); }

/* ============ 数据条 ============ */
.stats-strip { background: var(--primary); padding: 40px 0; position: relative; overflow: hidden; }
.stats-strip::before { content: ''; position: absolute; left: 0; right: 0; top: 0; height: 3px; background: linear-gradient(90deg, var(--accent) 0%, #F2B37C 50%, var(--accent) 100%); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.stat-item { text-align: center; }
.stat-num { font-family: var(--font-num); font-size: 40px; font-weight: 700; color: #fff; line-height: 1.1; letter-spacing: 0.02em; }
.stat-num span { color: var(--accent); }
.stat-label { font-size: 13px; color: rgba(255,255,255,0.65); margin-top: 6px; letter-spacing: 0.04em; }
.stat-divider { width: 1px; background: rgba(255,255,255,0.15); }

/* ============ 板块公共 ============ */
.section-pad { padding: 80px 0; }
.section-head { text-align: center; margin-bottom: 48px; }
.section-tag { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 600; color: var(--accent); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 12px; background: rgba(232,133,58,0.08); padding: 5px 16px; border-radius: 999px; border: 1px solid rgba(232,133,58,0.2); }
.section-head h2 { font-size: 30px; font-weight: 700; color: var(--primary); line-height: 1.3; margin-bottom: 12px; letter-spacing: -0.02em; }
.section-head p { font-size: 15px; color: var(--text-sub); max-width: 620px; margin: 0 auto; }

/* ============ 服务分组 ============ */
.service-group { margin-bottom: 48px; }
.service-group:last-child { margin-bottom: 0; }
.service-group-header { display: flex; align-items: center; gap: 14px; margin-bottom: 24px; }
.service-group-header .index { font-family: var(--font-num); font-size: 28px; font-weight: 700; color: var(--accent); opacity: 0.85; }
.service-group-header h3 { font-size: 22px; font-weight: 700; color: var(--primary); }
.service-group-header::after { content: ''; flex: 1; height: 1px; background: var(--border); }
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.service-card { background: var(--card-bg); border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow); border: 1px solid var(--border); transition: all 0.3s ease; display: flex; flex-direction: column; }
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.service-card-head { background: var(--primary); padding: 17px 20px; display: flex; align-items: center; justify-content: space-between; position: relative; }
.service-card-head h4 { color: #fff; font-size: 16px; font-weight: 700; }
.service-card-head .num { font-family: var(--font-num); font-size: 22px; color: var(--accent); font-weight: 700; opacity: 0.9; }
.service-card-body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
.service-card-img { border-radius: var(--radius-sm); overflow: hidden; margin-bottom: 16px; height: 118px; position: relative; }
.service-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.service-card:hover .service-card-img img { transform: scale(1.05); }
.service-card-img::after { content: ''; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(27,58,92,0.1) 0%, transparent 60%); }
.service-card-desc { font-size: 14px; color: var(--text-sub); line-height: 1.7; margin-bottom: 14px; flex: 1; }
.service-card-meta { display: flex; gap: 14px; font-size: 12px; color: var(--text-mute); margin-bottom: 14px; border-top: 1px solid var(--bg-light); padding-top: 12px; }
.service-card-meta i { margin-right: 4px; color: var(--accent); }
.service-card-btn { display: block; text-align: center; background: var(--bg-light); color: var(--primary); padding: 10px 14px; border-radius: var(--radius-sm); font-size: 14px; font-weight: 600; transition: all 0.3s ease; border: 1px solid transparent; }
.service-card-btn:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ============ 使用场景 ============ */
.scenario-wrap { background: var(--bg-light); }
.scenario-row { display: flex; align-items: center; gap: 32px; background: #fff; border-radius: var(--radius-md); padding: 28px 32px; margin-bottom: 20px; box-shadow: var(--shadow); border: 1px solid var(--border); transition: all 0.3s ease; }
.scenario-row:hover { box-shadow: var(--shadow-hover); transform: translateX(4px); }
.scenario-num { font-family: var(--font-num); font-size: 56px; font-weight: 700; color: var(--border); line-height: 1; min-width: 80px; text-align: center; }
.scenario-info { flex: 1; }
.scenario-info h3 { font-size: 19px; font-weight: 700; color: var(--primary); margin-bottom: 6px; }
.scenario-info p { font-size: 14px; color: var(--text-sub); line-height: 1.7; max-width: 400px; }
.scenario-tags { display: flex; flex-direction: column; align-items: flex-end; gap: 8px; }
.tag { display: inline-flex; align-items: center; background: var(--bg-light); color: var(--text-sub); font-size: 12px; font-weight: 600; padding: 5px 14px; border-radius: 999px; border: 1px solid var(--border); }
.tag-accent { background: rgba(232,133,58,0.08); color: var(--accent-dark); border-color: rgba(232,133,58,0.25); }
.scenario-link { font-size: 13px; color: var(--primary); font-weight: 600; display: inline-flex; align-items: center; gap: 6px; transition: color 0.2s ease; }
.scenario-link:hover { color: var(--accent); }
.scenario-link i { font-size: 12px; }
.scenario-row:nth-child(even) { flex-direction: row-reverse; text-align: right; }
.scenario-row:nth-child(even) .scenario-tags { align-items: flex-start; }
.scenario-row:nth-child(even) .scenario-info p { margin-left: auto; }
.scenario-row:nth-child(even) .scenario-link { flex-direction: row-reverse; }

/* ============ 成功案例 ============ */
.case-list { max-width: 820px; margin: 0 auto; }
.case-row { display: grid; grid-template-columns: 1fr 1fr 120px 2fr; align-items: center; gap: 20px; background: #fff; border-radius: var(--radius-md); padding: 20px 24px; margin-bottom: 14px; box-shadow: var(--shadow); border: 1px solid var(--border); transition: all 0.3s ease; }
.case-row:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); }
.case-type { font-weight: 600; color: var(--text-main); font-size: 14px; }
.case-service { font-size: 14px; color: var(--text-sub); }
.case-stars { color: var(--accent); font-size: 15px; letter-spacing: 2px; white-space: nowrap; }
.case-comment { font-size: 14px; color: var(--text-sub); font-style: italic; line-height: 1.6; border-left: 2px solid var(--accent); padding-left: 14px; }

/* ============ 安全体系 ============ */
.security-wrap { background: linear-gradient(135deg, #EEF4FA, #DCE7F3); }
.security-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.security-item { background: #fff; border-radius: var(--radius-md); padding: 36px 28px; text-align: center; box-shadow: var(--shadow); border: 1px solid var(--border); transition: all 0.3s ease; }
.security-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.security-icon { width: 64px; height: 64px; margin: 0 auto 18px; background: rgba(27,58,92,0.06); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 26px; color: var(--accent); transition: all 0.3s ease; }
.security-item:hover .security-icon { background: var(--primary); color: #fff; }
.security-item h3 { font-size: 17px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.security-item p { font-size: 14px; color: var(--text-sub); line-height: 1.7; }

/* ============ 价格 ============ */
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: stretch; }
.price-card { background: #fff; border-radius: var(--radius-lg); padding: 40px 32px; box-shadow: var(--shadow); border: 1px solid var(--border); position: relative; transition: all 0.3s ease; display: flex; flex-direction: column; }
.price-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.price-card.recommended { border: 2px solid var(--accent); box-shadow: 0 12px 44px rgba(232,133,58,0.16); transform: translateY(-20px); }
.price-card.recommended:hover { transform: translateY(-24px); box-shadow: 0 16px 50px rgba(232,133,58,0.22); }
.price-tag { position: absolute; top: -14px; right: 20px; background: var(--accent); color: #fff; font-size: 13px; font-weight: 700; padding: 5px 18px; border-radius: 999px; box-shadow: 0 4px 12px rgba(232,133,58,0.3); }
.price-card-header { text-align: center; margin-bottom: 20px; }
.price-card-header h3 { font-size: 20px; font-weight: 700; color: var(--primary); }
.price-card-header .price-sub { font-size: 13px; color: var(--text-mute); margin-top: 4px; }
.price-amount { text-align: center; margin-bottom: 24px; padding: 18px 0; border-top: 1px solid var(--bg-light); border-bottom: 1px solid var(--bg-light); }
.price-amount .num { font-family: var(--font-num); font-size: 46px; font-weight: 700; color: var(--primary); line-height: 1; }
.price-amount .num span { font-size: 16px; color: var(--text-mute); font-weight: 400; margin-left: 4px; }
.price-amount .note { font-size: 12px; color: var(--text-mute); margin-top: 6px; }
.price-features { flex: 1; margin-bottom: 28px; }
.price-features li { display: flex; align-items: flex-start; gap: 10px; padding: 5px 0; font-size: 14px; color: var(--text-sub); }
.price-features li i { color: var(--accent); font-size: 14px; margin-top: 3px; }
.price-features li.feature-mute { color: var(--text-mute); }
.price-card .btn { width: 100%; }

/* ============ CMS资讯区 ============ */
.news-layout { display: grid; grid-template-columns: 1fr 340px; gap: 40px; align-items: start; }
.news-filter { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 24px; }
.filter-tag { display: inline-flex; align-items: center; background: var(--bg-light); border: 1px solid var(--border); color: var(--text-sub); font-size: 13px; font-weight: 500; padding: 6px 16px; border-radius: 999px; cursor: pointer; transition: all 0.25s ease; }
.filter-tag:hover, .filter-tag.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.news-list { }
.news-card { display: flex; align-items: center; gap: 18px; background: #fff; border-radius: var(--radius-md); padding: 18px 20px; margin-bottom: 14px; box-shadow: var(--shadow); border: 1px solid var(--border); transition: all 0.3s ease; }
.news-card:hover { box-shadow: var(--shadow-hover); transform: translateX(4px); background: #F5F9FD; }
.news-thumb { width: 96px; height: 72px; border-radius: var(--radius-sm); overflow: hidden; flex-shrink: 0; background: var(--bg-light); display: flex; align-items: center; justify-content: center; }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; }
.news-thumb.placeholder { color: var(--text-mute); font-size: 24px; }
.news-info { flex: 1; min-width: 0; }
.news-info h4 { font-size: 15px; font-weight: 600; color: var(--text-main); margin-bottom: 4px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.news-info p { font-size: 13px; color: var(--text-sub); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.news-meta { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.badge { display: inline-block; background: var(--bg-light); color: var(--text-sub); font-size: 12px; font-weight: 500; padding: 4px 12px; border-radius: 999px; }
.news-date { font-family: var(--font-num); font-size: 14px; color: var(--text-mute); letter-spacing: 0.03em; }
.news-arrow { width: 34px; height: 34px; border-radius: 50%; background: var(--bg-light); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 14px; transition: all 0.3s ease; }
.news-card:hover .news-arrow { background: var(--accent); color: #fff; }
.news-empty { border: 2px dashed var(--border); border-radius: var(--radius-md); padding: 60px 20px; text-align: center; color: var(--text-mute); }
.news-empty i { font-size: 36px; margin-bottom: 14px; display: block; }
.news-empty p { font-size: 14px; }
.news-side { position: sticky; top: 24px; background: #fff; border-radius: var(--radius-md); padding: 28px 24px; box-shadow: var(--shadow); border: 1px solid var(--border); }
.news-side h4 { font-size: 18px; font-weight: 700; color: var(--primary); margin-bottom: 18px; padding-bottom: 12px; border-bottom: 2px solid var(--bg-light); }
.news-side-item { display: flex; gap: 12px; padding: 14px 0; border-bottom: 1px solid var(--bg-light); transition: all 0.3s ease; }
.news-side-item:last-child { border-bottom: none; }
.news-side-item:hover { padding-left: 6px; }
.news-side-item .n-index { font-family: var(--font-num); font-size: 24px; color: var(--border); font-weight: 700; line-height: 1; }
.news-side-item .n-content { flex: 1; }
.news-side-item .n-content p { font-size: 14px; font-weight: 600; color: var(--text-main); line-height: 1.5; margin-bottom: 4px; }
.news-side-item .n-content span { font-size: 12px; color: var(--text-mute); }

/* ============ FAQ ============ */
.faq-wrap { background: var(--bg-light); }
.faq-container { max-width: 820px; margin: 0 auto; }
.faq-item { background: #fff; border-radius: var(--radius-md); margin-bottom: 14px; box-shadow: var(--shadow); border: 1px solid var(--border); overflow: hidden; }
.faq-item .accordion-title { display: flex; align-items: center; gap: 14px; padding: 20px 24px; font-size: 15px; font-weight: 600; color: var(--text-main); border-bottom: 1px solid transparent; transition: all 0.3s ease; }
.faq-item .accordion-title:hover { background: var(--bg-light); }
.faq-item .q-index { font-family: var(--font-num); font-size: 12px; font-weight: 700; color: var(--accent); background: rgba(232,133,58,0.1); width: 28px; height: 28px; border-radius: 6px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.faq-item .q-title { flex: 1; }
.faq-item .q-icon { color: var(--text-mute); font-size: 14px; transition: transform 0.3s ease; }
.faq-item .accordion-content { padding: 0 24px 22px; font-size: 14px; color: var(--text-sub); line-height: 1.8; border-left: 2px solid var(--accent); margin: 0 24px 18px 24px; padding-left: 16px; }
.faq-item .accordion-content p { margin: 0; }
.faq-item.is-active .accordion-title { background: var(--bg-light); }
.faq-item.is-active .q-icon { transform: rotate(180deg); color: var(--accent); }
.faq-item.is-active .accordion-title { color: var(--primary); }

/* ============ CTA + 表单 ============ */
.cta-wrap { background: var(--primary); padding: 90px 0; position: relative; overflow: hidden; }
.cta-wrap::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 8px; background: linear-gradient(90deg, var(--accent) 0%, #F2B37C 50%, var(--accent) 100%); }
.cta-wrap::after { content: ''; position: absolute; top: 0; right: 0; width: 60%; height: 100%; background: linear-gradient(135deg, transparent 45%, rgba(232,133,58,0.12) 46%, rgba(232,133,58,0.12) 48%, transparent 49%); pointer-events: none; }
.cta-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; position: relative; z-index: 2; }
.cta-info { color: #fff; }
.cta-info .section-tag { border-color: rgba(255,255,255,0.25); color: #fff; background: rgba(255,255,255,0.1); }
.cta-info h2 { font-size: 32px; font-weight: 700; line-height: 1.3; margin-bottom: 16px; color: #fff; }
.cta-info p { font-size: 15px; color: rgba(255,255,255,0.75); line-height: 1.8; margin-bottom: 28px; max-width: 420px; }
.cta-contact-list { margin-bottom: 30px; }
.cta-contact-list li { display: flex; align-items: center; gap: 14px; padding: 8px 0; font-size: 15px; color: rgba(255,255,255,0.85); }
.cta-contact-list li i { width: 36px; height: 36px; background: rgba(255,255,255,0.1); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 15px; color: var(--accent); flex-shrink: 0; }
.cta-btns { display: flex; gap: 14px; flex-wrap: wrap; }
.cta-btns .btn i { font-size: 16px; }
.cta-canvas { background: #fff; border-radius: var(--radius-lg); padding: 36px; box-shadow: 0 20px 60px rgba(0,0,0,0.2); max-width: 460px; margin-left: auto; width: 100%; }
.cta-canvas h3 { font-size: 22px; font-weight: 700; color: var(--primary); margin-bottom: 6px; }
.cta-canvas .form-sub { font-size: 13px; color: var(--text-mute); margin-bottom: 24px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; color: var(--text-main); margin-bottom: 6px; }
.form-group label .req { color: var(--accent); }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 12px 14px; border: 1px solid var(--border); border-radius: var(--radius-sm); font-size: 14px; font-family: inherit; color: var(--text-main); background: var(--bg-light); transition: all 0.3s ease; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: 3px solid rgba(232,133,58,0.25); border-color: var(--accent); background: #fff; }
.form-group textarea { min-height: 70px; resize: vertical; }
.form-error { font-size: 12px; color: #d64545; margin-top: 4px; display: none; }
.form-group.has-error input, .form-group.has-error select { border-color: #d64545; }
.form-group.has-error .form-error { display: block; }
.cta-canvas .btn { width: 100%; margin-top: 8px; }

/* ============ 页脚 ============ */
.site-footer { background: linear-gradient(180deg, #10233B, #0C1D30); color: rgba(255,255,255,0.7); padding: 60px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1.2fr; gap: 48px; padding-bottom: 48px; border-bottom: 1px solid rgba(255,255,255,0.08); }
.footer-brand .footer-logo { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.footer-brand .footer-logo-icon { width: 42px; height: 42px; background: var(--accent); border-radius: 8px; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 18px; flex-shrink: 0; }
.footer-brand .footer-logo h3 { font-size: 17px; font-weight: 700; color: #fff; line-height: 1.3; }
.footer-brand p { font-size: 13px; line-height: 1.8; color: rgba(255,255,255,0.55); max-width: 300px; }
.footer-col h4 { font-size: 15px; font-weight: 600; color: #fff; margin-bottom: 16px; padding-bottom: 10px; border-bottom: 1px solid rgba(255,255,255,0.08); position: relative; }
.footer-col h4::after { content: ''; position: absolute; left: 0; bottom: -1px; width: 32px; height: 2px; background: var(--accent); }
.footer-col a { display: block; padding: 4px 0; font-size: 14px; color: rgba(255,255,255,0.6); transition: all 0.25s ease; }
.footer-col a:hover { color: var(--accent); padding-left: 6px; }
.footer-contact li { display: flex; align-items: flex-start; gap: 10px; padding: 5px 0; font-size: 14px; line-height: 1.6; }
.footer-contact i { color: var(--accent); margin-top: 4px; font-size: 13px; width: 16px; }
.footer-bottom { padding: 20px 0; text-align: center; font-size: 13px; color: rgba(255,255,255,0.4); border-top: 1px solid rgba(255,255,255,0.04); }
.footer-bottom a { color: rgba(255,255,255,0.5); transition: color 0.2s ease; }
.footer-bottom a:hover { color: var(--accent); }

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
    :root { --sidebar-width: 72px; }
    .side-nav { padding: 24px 14px; }
    .side-brand { justify-content: center; padding-bottom: 20px; }
    .side-brand-text { display: none; }
    .side-links a { justify-content: center; padding: 10px 0; }
    .side-links a span { display: none; }
    .side-links a i { width: 24px; font-size: 18px; }
    .side-phone-btn span { display: none; }
    .side-phone-btn { padding: 12px 0; }
    .side-phone-btn i { font-size: 18px; }
    .side-hours { display: none; }
    .hero { padding: 60px 0 80px; }
    .hero h1 { font-size: 32px; }
    .hero-compare { gap: 14px; }
    .compare-card { padding: 20px; }
    .service-grid { grid-template-columns: repeat(2, 1fr); }
    .scenario-row { padding: 22px; }
    .price-grid { gap: 16px; }
    .price-card { padding: 30px 20px; }
    .news-layout { grid-template-columns: 1fr; }
    .news-side { position: static; }
    .cta-grid { gap: 32px; }
}
@media (max-width: 900px) {
    .cta-grid { grid-template-columns: 1fr; gap: 40px; }
    .cta-canvas { max-width: 100%; margin: 0; }
}
@media (max-width: 640px) {
    :root { --sidebar-width: 0px; }
    .side-nav { display: none; }
    .mobile-nav { display: flex; }
    .mobile-menu { display: none; }
    .mobile-menu.open { display: block; }
    .main-wrap { margin-left: 0; padding-top: 60px; }
    .hero { padding: 44px 0 60px; }
    .hero h1 { font-size: 28px; }
    .hero-meta { gap: 12px; }
    .hero-cta { flex-direction: column; align-items: stretch; }
    .btn { justify-content: center; }
    .hero-compare { grid-template-columns: 1fr; gap: 18px; max-width: 380px; margin-left: auto; margin-right: auto; }
    .compare-card.featured { transform: translateY(0); }
    .compare-card.featured:hover { transform: translateY(-4px); }
    .stats-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
    .section-pad { padding: 48px 0; }
    .section-head h2 { font-size: 24px; }
    .service-grid { grid-template-columns: 1fr; gap: 16px; }
    .service-group-header h3 { font-size: 18px; }
    .scenario-row, .scenario-row:nth-child(even) { flex-direction: column; align-items: flex-start; gap: 16px; text-align: left; }
    .scenario-num { font-size: 40px; min-width: auto; }
    .scenario-tags, .scenario-row:nth-child(even) .scenario-tags { align-items: flex-start; }
    .scenario-row:nth-child(even) .scenario-info p { margin-left: 0; }
    .case-row { grid-template-columns: 1fr 1fr; gap: 10px 16px; }
    .case-comment { grid-column: 1 / -1; }
    .security-grid { grid-template-columns: 1fr; gap: 16px; }
    .price-grid { grid-template-columns: 1fr; gap: 24px; }
    .price-card.recommended { transform: translateY(0); order: -1; }
    .price-card.recommended:hover { transform: translateY(-4px); }
    .news-card { flex-direction: column; align-items: flex-start; gap: 12px; }
    .news-thumb { width: 100%; height: 100px; }
    .news-meta { width: 100%; justify-content: space-between; }
    .cta-wrap { padding: 60px 0; }
    .cta-canvas { padding: 24px; }
    .cta-info h2 { font-size: 24px; }
    .footer-grid { grid-template-columns: 1fr; gap: 30px; }
    .form-group input, .form-group select, .form-group textarea { font-size: 16px; }
}

:root {
    --primary: #1B3A5C;
    --primary-dark: #14304E;
    --accent: #E8853A;
    --accent-dark: #D67324;
    --bg: #F2F6FA;
    --bg-light: #EDF2F7;
    --card-bg: #FFFFFF;
    --text-main: #2B3A4A;
    --text-sub: #5A6B7B;
    --text-mute: #8A9AAB;
    --border: #DCE4EE;
    --radius-lg: 16px;
    --radius-md: 12px;
    --radius-sm: 6px;
    --shadow: 0 4px 20px rgba(27,58,92,0.08);
    --shadow-hover: 0 8px 30px rgba(27,58,92,0.14);
    --transition: 0.25s ease;
    --sidebar-width: 260px;
    --font-num: "DIN Alternate", "Bebas Neue", "Oswald", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--text-main);
    line-height: 1.75;
    font-size: 15px;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
button { background: none; border: none; cursor: pointer; font-family: inherit; }
ul, ol { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
section { position: relative; }

/* ========== 侧边导航 ========== */
.side-nav {
    position: fixed;
    left: 0; top: 0; bottom: 0;
    width: var(--sidebar-width);
    background: linear-gradient(180deg, #1B3A5C 0%, #163048 100%);
    color: #fff;
    z-index: 100;
    display: flex;
    flex-direction: column;
    padding: 32px 24px 24px;
    transition: width 0.3s ease;
}
.side-brand { display: flex; align-items: center; gap: 12px; padding-bottom: 28px; border-bottom: 1px solid rgba(255,255,255,0.12); margin-bottom: 24px; }
.side-brand-icon {
    width: 46px; height: 46px; background: var(--accent); border-radius: 10px;
    display: flex; align-items: center; justify-content: center; font-size: 20px; color: #fff; flex-shrink: 0;
    box-shadow: 0 4px 14px rgba(232,133,58,0.4);
}
.side-brand-text h3 { font-size: 16px; font-weight: 700; line-height: 1.35; color: #fff; letter-spacing: 0.02em; }
.side-brand-text p { font-size: 12px; color: rgba(255,255,255,0.6); margin-top: 2px; letter-spacing: 0.05em; }
.side-links a {
    display: flex; align-items: center; gap: 14px; padding: 9px 14px;
    color: rgba(255,255,255,0.75); font-size: 15px; line-height: 2.4;
    border-left: 3px solid transparent; transition: all 0.25s ease; border-radius: 0 8px 8px 0; margin-bottom: 2px;
}
.side-links a:hover, .side-links a.active { background: rgba(255,255,255,0.08); border-left-color: var(--accent); color: #fff; }
.side-links a i { width: 22px; text-align: center; font-size: 16px; }
.side-links a span { white-space: nowrap; }
.side-footer { margin-top: auto; }
.side-phone-btn {
    display: flex; align-items: center; justify-content: center; gap: 10px;
    background: var(--accent); color: #fff; padding: 12px 16px; border-radius: 8px;
    font-size: 15px; font-weight: 600; transition: all 0.3s ease; margin-bottom: 16px;
}
.side-phone-btn:hover { background: var(--accent-dark); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(232,133,58,0.35); }
.side-phone-btn i { font-size: 16px; }
.side-phone-btn span { white-space: nowrap; }
.side-wx { display: flex; align-items: center; gap: 10px; padding: 10px 12px; background: rgba(255,255,255,0.06); border-radius: 8px; margin-bottom: 14px; }
.side-wx i { font-size: 20px; color: #4CAF50; }
.side-wx span { font-size: 13px; color: rgba(255,255,255,0.8); }
.side-time { font-size: 12px; color: rgba(255,255,255,0.45); text-align: center; }

/* ========== 移动端导航 ========== */
.mobile-nav {
    display: none; position: fixed; top: 0; left: 0; right: 0;
    background: var(--primary); z-index: 200; padding: 12px 20px;
    align-items: center; justify-content: space-between;
    box-shadow: 0 2px 12px rgba(0,0,0,0.15);
}
.mobile-brand { display: flex; align-items: center; gap: 10px; color: #fff; }
.mobile-brand-icon { width: 36px; height: 36px; background: var(--accent); border-radius: 8px; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 15px; }
.mobile-brand span { font-size: 16px; font-weight: 700; white-space: nowrap; }
.mobile-hamburger { background: none; border: none; color: #fff; font-size: 24px; cursor: pointer; padding: 6px; line-height: 1; }
.mobile-menu {
    display: none; position: fixed; top: 60px; left: 0; right: 0;
    background: var(--primary); padding: 12px 20px 24px; z-index: 199;
    box-shadow: 0 10px 30px rgba(0,0,0,0.25);
}
.mobile-menu.open { display: block; }
.mobile-menu a { display: block; color: rgba(255,255,255,0.85); padding: 13px 8px; font-size: 15px; border-bottom: 1px solid rgba(255,255,255,0.07); transition: background 0.2s ease; }
.mobile-menu a:hover { background: rgba(255,255,255,0.06); }
.mobile-menu .m-phone { display: block; background: var(--accent); color: #fff; text-align: center; padding: 12px; border-radius: 8px; margin-top: 16px; font-weight: 600; }

/* ========== 主内容 ========== */
.main-wrap { margin-left: var(--sidebar-width); transition: margin-left 0.3s ease; min-height: 100vh; display: flex; flex-direction: column; }

/* ========== 文章页 Hero/Banner ========== */
.article-hero {
    position: relative;
    padding: 72px 0 56px;
    background: linear-gradient(135deg, #EAF0F7 0%, #D8E5F2 60%, #C5D8EC 100%);
    overflow: hidden;
}
.article-hero::before {
    content: '';
    position: absolute; inset: 0;
    background-image: url('/assets/images/backpic/back-2.webp');
    background-size: cover;
    background-position: center;
    opacity: 0.18;
}
.article-hero::after {
    content: '';
    position: absolute; right: -60px; top: -60px;
    width: 220px; height: 220px;
    border: 32px solid rgba(27,58,92,0.05);
    border-radius: 50%;
}
.article-hero .container { position: relative; z-index: 2; }

.breadcrumb {
    display: flex; align-items: center; gap: 8px;
    font-size: 14px; color: var(--text-sub); margin-bottom: 16px;
}
.breadcrumb a { color: var(--accent-dark); font-weight: 500; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb i { font-size: 12px; color: var(--text-mute); }
.breadcrumb .current { color: var(--text-main); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 400px; }

.article-cat-label {
    display: inline-flex; align-items: center; gap: 8px;
    background: var(--accent); color: #fff;
    padding: 5px 16px; border-radius: 999px;
    font-size: 13px; font-weight: 600; letter-spacing: 0.04em;
    margin-bottom: 18px;
}

/* ========== 文章主体 ========== */
.article-main { padding: 48px 0 72px; flex: 1; }
.article-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    max-width: 900px;
    margin: 0 auto;
    overflow: hidden;
}
.article-header { padding: 44px 56px 24px; }
.article-header h1 {
    font-size: 32px;
    line-height: 1.35;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: -0.3px;
    margin-bottom: 18px;
}
.article-meta {
    display: flex; flex-wrap: wrap; gap: 22px;
    font-size: 13px; color: var(--text-mute);
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
}
.article-meta span { display: inline-flex; align-items: center; gap: 6px; }
.article-meta i { color: var(--accent); font-size: 14px; }
.article-meta .num { font-family: var(--font-num); font-size: 15px; }

.article-cover { padding: 24px 56px 0; }
.article-cover img {
    width: 100%;
    max-height: 420px;
    object-fit: cover;
    border-radius: var(--radius-md);
    box-shadow: 0 8px 28px rgba(27,58,92,0.12);
}

.article-body { padding: 28px 56px 48px; font-size: 16px; line-height: 1.9; color: var(--text-main); }
.article-body p { margin-bottom: 20px; }
.article-body p:first-of-type { font-size: 17px; color: var(--text-main); }
.article-body h2 {
    font-size: 24px; font-weight: 700; color: var(--primary);
    margin: 40px 0 16px; padding-left: 14px;
    border-left: 4px solid var(--accent);
    line-height: 1.4;
}
.article-body h3 {
    font-size: 19px; font-weight: 600; color: var(--primary-dark);
    margin: 30px 0 12px; line-height: 1.4;
}
.article-body h4 {
    font-size: 16px; font-weight: 600; color: var(--text-main);
    margin: 24px 0 10px;
}
.article-body ul, .article-body ol {
    margin: 0 0 22px 4px; padding-left: 0;
}
.article-body ul li, .article-body ol li {
    position: relative; padding-left: 24px; margin-bottom: 10px;
}
.article-body ul li::before {
    content: '✓';
    position: absolute; left: 0; top: 0;
    color: var(--accent); font-weight: 700; font-size: 15px;
}
.article-body ol { counter-reset: article-list; }
.article-body ol li { counter-increment: article-list; }
.article-body ol li::before {
    content: counter(article-list) ".";
    position: absolute; left: 0; top: 0;
    color: var(--accent); font-weight: 700; font-size: 15px;
}
.article-body blockquote {
    margin: 26px 0; padding: 20px 24px;
    background: var(--bg-light);
    border-left: 4px solid var(--accent);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    color: var(--text-sub);
    font-size: 15px; line-height: 1.8;
}
.article-body img {
    border-radius: var(--radius-md);
    box-shadow: 0 6px 24px rgba(27,58,92,0.12);
    margin: 24px auto;
}
.article-body a { color: var(--accent-dark); font-weight: 600; border-bottom: 1px solid rgba(232,133,58,0.3); transition: all 0.2s ease; }
.article-body a:hover { color: var(--accent); border-bottom-color: var(--accent); }
.article-body table {
    width: 100%; border-collapse: collapse; margin: 26px 0;
    border-radius: var(--radius-sm); overflow: hidden;
    font-size: 14px;
}
.article-body table th {
    background: var(--primary); color: #fff;
    padding: 12px 16px; text-align: left; font-weight: 600;
}
.article-body table td {
    padding: 10px 16px; border-bottom: 1px solid var(--border); color: var(--text-main);
}
.article-body table tr:nth-child(even) { background: var(--bg); }
.article-body pre {
    background: #1B2A3A; color: #E8EDF2; padding: 20px 24px;
    border-radius: var(--radius-sm); overflow-x: auto;
    font-size: 14px; line-height: 1.6; margin: 24px 0;
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}
.article-body code {
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
    background: var(--bg-light); padding: 2px 8px;
    border-radius: 4px; font-size: 0.9em; color: var(--primary-dark);
}

/* 空状态 */
.article-empty {
    padding: 80px 20px;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}
.article-empty i { font-size: 56px; color: var(--text-mute); margin-bottom: 20px; }
.article-empty p { font-size: 18px; color: var(--text-sub); margin-bottom: 28px; }

/* ========== 按钮 ========== */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 13px 28px; border-radius: var(--radius-sm);
    font-size: 15px; font-weight: 600;
    transition: all 0.25s ease;
    cursor: pointer; border: 2px solid transparent;
    line-height: 1.2;
}
.btn:focus-visible { outline: 3px solid rgba(232,133,58,0.35); outline-offset: 2px; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 6px 18px rgba(27,58,92,0.25); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: var(--accent-dark); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(232,133,58,0.35); }
.btn-outline { background: transparent; border-color: var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-2px); box-shadow: 0 6px 18px rgba(27,58,92,0.2); }
.btn-sm { padding: 9px 18px; font-size: 14px; }

/* ========== 相关阅读 ========== */
.related-section { padding: 64px 0 20px; max-width: 1100px; margin: 0 auto; }
.section-title-row { display: flex; align-items: center; gap: 16px; margin-bottom: 32px; }
.section-title-row h2 {
    font-size: 28px; font-weight: 800; color: var(--primary);
    line-height: 1.3; position: relative;
}
.section-title-row h2::after {
    content: ''; position: absolute; left: 0; bottom: -8px;
    width: 48px; height: 4px; background: var(--accent); border-radius: 4px;
}
.section-title-row .line { flex: 1; height: 1px; background: var(--border); }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.related-card {
    background: var(--card-bg);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    display: flex; flex-direction: column;
}
.related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.related-card-thumb { height: 180px; overflow: hidden; }
.related-card-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.related-card:hover .related-card-thumb img { transform: scale(1.06); }
.related-card-body { padding: 22px 24px 26px; flex: 1; }
.related-card-body h3 { font-size: 16px; font-weight: 700; color: var(--primary); line-height: 1.5; margin-bottom: 8px; }
.related-card-body h3 a:hover { color: var(--accent-dark); }
.related-card-body p { font-size: 13px; color: var(--text-sub); line-height: 1.7; margin-bottom: 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-card-meta { display: flex; align-items: center; justify-content: space-between; font-size: 12px; color: var(--text-mute); }
.related-card-meta .tag { background: var(--bg-light); padding: 3px 12px; border-radius: 999px; color: var(--primary-dark); font-weight: 600; }
.related-card-link { color: var(--accent); font-weight: 600; font-size: 13px; transition: color 0.2s; }
.related-card-link:hover { color: var(--accent-dark); }

/* ========== 底部翻页 ========== */
.article-pager {
    max-width: 1100px; margin: 0 auto;
    display: flex; align-items: center; justify-content: space-between; gap: 20px;
    padding: 40px 0 60px; flex-wrap: wrap;
}
.article-pager .pager-links { display: flex; gap: 14px; }
.article-pager .pager-links a {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 14px; color: var(--text-sub);
    padding: 10px 18px; background: var(--card-bg);
    border-radius: var(--radius-sm); box-shadow: var(--shadow);
    transition: all 0.25s ease;
}
.article-pager .pager-links a:hover { color: var(--primary); transform: translateY(-2px); box-shadow: var(--shadow-hover); }

/* ========== 页脚 ========== */
.site-footer {
    background: linear-gradient(135deg, #10233B 0%, #0C1D30 100%);
    color: rgba(255,255,255,0.75);
    padding: 64px 0 0;
    margin-top: 40px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1.2fr;
    gap: 48px;
    padding-bottom: 44px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-logo { display: flex; align-items: center; gap: 14px; margin-bottom: 18px; }
.footer-logo-icon {
    width: 48px; height: 48px;
    background: var(--accent);
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 20px; color: #fff;
    box-shadow: 0 4px 14px rgba(232,133,58,0.3);
}
.footer-logo h3 { font-size: 17px; font-weight: 700; color: #fff; line-height: 1.4; }
.footer-brand p { font-size: 14px; line-height: 1.8; color: rgba(255,255,255,0.55); max-width: 360px; }
.footer-col h4 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 18px; letter-spacing: 0.04em; }
.footer-col a {
    display: block; color: rgba(255,255,255,0.6);
    font-size: 14px; padding: 5px 0;
    transition: all 0.2s ease;
}
.footer-col a:hover { color: var(--accent); padding-left: 4px; }
.footer-contact li {
    display: flex; align-items: center; gap: 10px;
    font-size: 14px; color: rgba(255,255,255,0.6);
    padding: 6px 0;
}
.footer-contact i { width: 18px; color: var(--accent); font-size: 16px; }
.footer-bottom {
    padding: 22px 0;
    display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px;
    font-size: 13px; color: rgba(255,255,255,0.4);
}
.footer-bottom a { color: rgba(255,255,255,0.5); }
.footer-bottom a:hover { color: var(--accent); }

/* ========== 响应式 ========== */
@media screen and (min-width: 1025px) {
    :root { --sidebar-width: 260px; }
}
@media screen and (max-width: 1024px) and (min-width: 641px) {
    :root { --sidebar-width: 72px; }
    .side-nav { padding: 24px 14px; }
    .side-brand { justify-content: center; padding-bottom: 20px; }
    .side-brand-text { display: none; }
    .side-links a { justify-content: center; padding: 11px 0; gap: 0; }
    .side-links a span { display: none; }
    .side-links a i { font-size: 18px; }
    .side-phone-btn span { display: none; }
    .side-phone-btn { padding: 12px; }
    .side-wx { justify-content: center; padding: 10px; }
    .side-wx span { display: none; }
    .side-time { font-size: 11px; }
    .related-grid { grid-template-columns: repeat(2, 1fr); }
}
@media screen and (max-width: 640px) {
    :root { --sidebar-width: 0px; }
    .side-nav { display: none; }
    .mobile-nav { display: flex; }
    body { padding-top: 60px; }
    .main-wrap { margin-left: 0; }
    .article-hero { padding: 40px 0 32px; }
    .breadcrumb { font-size: 13px; }
    .breadcrumb .current { max-width: 180px; }
    .article-header { padding: 28px 22px 18px; }
    .article-header h1 { font-size: 24px; }
    .article-meta { gap: 12px; row-gap: 8px; font-size: 12px; }
    .article-cover { padding: 16px 22px 0; }
    .article-body { padding: 20px 22px 34px; font-size: 15px; }
    .article-body h2 { font-size: 20px; }
    .article-body h3 { font-size: 17px; }
    .article-card { border-radius: 12px; margin: 0 8px; }
    .article-main { padding: 24px 0 48px; }
    .related-grid { grid-template-columns: 1fr; gap: 18px; }
    .related-section { padding: 40px 0 10px; }
    .section-title-row h2 { font-size: 22px; }
    .article-pager { flex-direction: column; align-items: flex-start; padding: 28px 0 40px; gap: 14px; }
    .article-pager .pager-links { width: 100%; justify-content: space-between; }
    .article-pager .pager-links a { flex: 1; justify-content: center; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; padding-bottom: 30px; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .container { padding: 0 16px; }
}
@media screen and (max-width: 380px) {
    .mobile-brand span { font-size: 14px; }
    .breadcrumb .current { max-width: 120px; }
}