/* ==========================================================
   数字花开 — 企业数字化服务官网
   设计系统：专业 · 克制 · 可信赖
   品牌色对齐内容真源（md/企业信息.md）：
   主色 #0cbcbc / 主色深 #089a9a / 强调色 #f59e0b
   ========================================================== */

/* ===== 设计变量 ===== */
:root {
    --ink: #1a2332;
    --ink-light: #3d4f63;
    --ink-muted: #64748b;
    --brand: #0cbcbc;
    --brand-dark: #089a9a;
    --brand-bg: #f0fafa;
    --accent: #f59e0b;
    --bg: #ffffff;
    --bg-alt: #f7f8fa;
    --bg-dark: #111927;
    --border: #e2e6eb;
    --border-light: #eef1f4;
    --radius: 6px;
    --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", sans-serif;
    --max-w: 1200px;
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.7;
    color: var(--ink);
    background: var(--bg);
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }
svg { vertical-align: middle; flex-shrink: 0; }

/* ===== 布局容器 ===== */
.container {
    width: 100%;
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 24px;
}

.section { padding: 72px 0; }
.section--alt { background: var(--bg-alt); }
.section--dark { background: var(--bg-dark); color: #e2e8f0; }

/* ===== 区块标题 ===== */
.section-head {
    margin-bottom: 48px;
}
.section-head.center { text-align: center; }
.section-head .label {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.06em;
    color: var(--brand);
    margin-bottom: 10px;
    text-transform: uppercase;
}
.section-head h2 {
    font-size: 30px;
    font-weight: 700;
    line-height: 1.35;
    color: var(--ink);
    margin-bottom: 12px;
}
.section-head p {
    font-size: 16px;
    color: var(--ink-muted);
    max-width: 640px;
}
.section-head.center p { margin: 0 auto; }

/* ===== 按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius);
    border: 1px solid transparent;
    transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.2s, box-shadow 0.2s;
    white-space: nowrap;
}
.btn-primary {
    position: relative;
    overflow: hidden;
    /* 青色三段渐变：左上提亮、右下压暗，光从左上来 */
    background: linear-gradient(135deg, #19c9c5 0%, var(--brand) 52%, var(--brand-dark) 100%);
    color: #fff;
    box-shadow: 0 2px 12px rgba(12, 188, 188, 0.28);
}
/* 光带扫过：hover 时一道柔光自左向右掠过按钮表面 */
.btn-primary::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(105deg, transparent 38%, rgba(255,255,255,0.32) 50%, transparent 62%);
    transform: translateX(-110%);
    transition: transform 0.55s ease;
    pointer-events: none;
}
.btn-primary:hover::after { transform: translateX(110%); }
.btn-primary:hover {
    background: linear-gradient(135deg, #0ab6b2 0%, var(--brand-dark) 52%, #06706e 100%);
    box-shadow: 0 4px 18px rgba(12, 188, 188, 0.38);
    transform: translateY(-1px);
}
.btn-primary:active { transform: translateY(0); }
.btn-outline {
    background: transparent;
    color: var(--ink);
    border-color: var(--border);
}
.btn-outline:hover { border-color: var(--brand); color: var(--brand); }
.btn-light {
    background: #fff;
    color: var(--ink);
}
.btn-light:hover { background: #f0fafa; }
.btn-ghost {
    background: transparent;
    color: #fff;
    border-color: rgba(255,255,255,0.4);
}
.btn-ghost:hover { border-color: #fff; background: rgba(255,255,255,0.08); }

/* ===== 页头 ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 900;
    background: rgba(255,255,255,0.97);
    border-bottom: 1px solid var(--border-light);
    backdrop-filter: blur(8px);
}
.header-inner {
    display: flex;
    align-items: center;
    height: 68px;
    gap: 32px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-logo { height: 36px; width: auto; }
.brand-name {
    font-size: 15px;
    font-weight: 700;
    color: var(--ink);
    letter-spacing: 0.02em;
}

.main-nav { display: flex; align-items: center; gap: 4px; flex: 1; }
.main-nav > a {
    display: block;
    padding: 8px 16px;
    font-size: 15px;
    color: var(--ink-light);
    border-radius: var(--radius);
    transition: color 0.15s, background 0.15s;
}
.main-nav > a:hover,
.main-nav > a.active {
    color: var(--brand-dark);
    background: var(--brand-bg);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--ink);
    padding: 6px;
    margin-left: auto;
}

/* ===== Hero（左文案 + 右形象图） ===== */
.hero {
    background: var(--bg-dark);
    color: #fff;
    padding: 60px 0 60px;
    position: relative;
    overflow: hidden;
}
/* 极光双柔光团：青色主光 + 琥珀辅光，缓慢呼吸漂移（仅 transform/opacity 动画） */
.hero::before, .hero::after {
    content: "";
    position: absolute;
    border-radius: 50%;
    filter: blur(70px);
    pointer-events: none;
    will-change: transform;
}
.hero::before {
    top: -32%;
    right: -12%;
    width: 620px;
    height: 620px;
    background: radial-gradient(circle at 35% 35%, rgba(12,188,188,0.42) 0%, rgba(12,188,188,0.14) 45%, transparent 72%);
    animation: heroAuroraA 18s ease-in-out infinite alternate;
}
.hero::after {
    bottom: -46%;
    left: -14%;
    width: 560px;
    height: 560px;
    background: radial-gradient(circle at 60% 40%, rgba(245,158,11,0.20) 0%, rgba(12,188,188,0.16) 48%, transparent 75%);
    animation: heroAuroraB 24s ease-in-out infinite alternate;
}
@keyframes heroAuroraA {
    from { transform: translate3d(0, 0, 0) scale(1); opacity: 0.85; }
    to   { transform: translate3d(-7%, 6%, 0) scale(1.14); opacity: 1; }
}
@keyframes heroAuroraB {
    from { transform: translate3d(0, 0, 0) scale(1.08); opacity: 0.9; }
    to   { transform: translate3d(8%, -7%, 0) scale(0.94); opacity: 1; }
}
.hero-inner {
    position: relative;
    display: grid;
    grid-template-columns: 1.05fr 0.45fr;
    gap: 56px;
    align-items: center;
}
.hero-copy { position: relative; z-index: 1; }
.hero h1 {
    font-size: 34px;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 20px;
    letter-spacing: -0.01em;
}
.hero h1 em {
    font-style: normal;
    /* 渐变文字：亮青 → 品牌青 → 浅青，呼应极光 */
    background: linear-gradient(95deg, #4fd8cf 0%, var(--brand) 50%, #8ceee2 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.hero-desc {
    font-size: 16px;
    line-height: 1.8;
    color: rgba(255,255,255,0.72);
    margin-bottom: 10px;
    max-width: 560px;
}
.hero-sub {
    font-size: 14px;
    line-height: 1.7;
    color: rgba(255,255,255,0.5);
    margin-bottom: 32px;
    max-width: 560px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
/* 形象图：深底上的取景框（占位图，后续替换真实图片） */
.hero-media { position: relative; z-index: 1; }
.hero-media img {
    width: 100%;
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.14);
    box-shadow: 0 24px 60px rgba(0,0,0,0.45);
}

/* ===== 服务总览（首页，全量来自数据库） ===== */
.svc-overview {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}
.svc-item {
    position: relative;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 26px 22px;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.svc-item:hover {
    transform: translateY(-4px);
    border-color: rgba(12,188,188,0.45);
    box-shadow: 0 14px 30px rgba(12,188,188,0.16);
}
.svc-item .icon {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(12,188,188,0.14), rgba(12,188,188,0.05));
    color: var(--brand);
    margin-bottom: 16px;
    transition: background 0.25s, color 0.25s, box-shadow 0.25s;
}
/* hover 时图标块点亮为品牌渐变，与按钮体系呼应 */
.svc-item:hover .icon {
    background: linear-gradient(135deg, #19c9c5 0%, var(--brand) 55%, var(--brand-dark) 100%);
    color: #fff;
    box-shadow: 0 4px 14px rgba(12,188,188,0.38);
}
.svc-item h3 { font-size: 16px; font-weight: 600; margin-bottom: 6px; }
.svc-item p { font-size: 13px; color: var(--ink-muted); line-height: 1.6; }
/* 服务分组（会员服务 / 增值权益分开呈现） */
.svc-group + .svc-group { margin-top: 44px; }
.svc-group-head {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 18px;
}
.svc-group-head h3 { font-size: 20px; font-weight: 700; color: var(--ink); }
.svc-group-head .tag {
    font-size: 12px;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 12px;
    background: var(--brand-bg);
    color: var(--brand-dark);
    white-space: nowrap;
}
.svc-group-more {
    margin-left: auto;
    font-size: 14px;
    font-weight: 600;
    color: var(--brand);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: color 0.15s, gap 0.2s ease;
}
.svc-group-more:hover { color: var(--brand-dark); gap: 10px; }

/* ===== 收费方式（首页，口径见 md/收费规则.md） ===== */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.pricing-item {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 26px 24px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: #fff;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.pricing-item:hover {
    transform: translateY(-4px);
    border-color: rgba(12,188,188,0.4);
    box-shadow: 0 14px 30px rgba(17, 25, 39, 0.12);
}
.pricing-item .icon {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(12,188,188,0.14), rgba(12,188,188,0.05));
    color: var(--brand);
    transition: background 0.25s, color 0.25s, box-shadow 0.25s;
}
.pricing-item:hover .icon {
    background: linear-gradient(135deg, #19c9c5 0%, var(--brand) 55%, var(--brand-dark) 100%);
    color: #fff;
    box-shadow: 0 4px 14px rgba(12,188,188,0.38);
}
.pricing-item h3 { font-size: 16px; font-weight: 600; }
.pricing-item p { font-size: 13px; color: var(--ink-muted); line-height: 1.7; }

/* ===== 流程 ===== */
.process { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: step; }
.process-item {
    position: relative;
    padding: 28px 24px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: #fff;
}
.process-item::before {
    counter-increment: step;
    content: "0" counter(step);
    display: block;
    font-size: 32px;
    font-weight: 700;
    color: var(--border);
    margin-bottom: 14px;
    line-height: 1;
}
.process-item h3 { font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.process-item p { font-size: 14px; color: var(--ink-muted); line-height: 1.6; }
.process-item:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 50%;
    right: -20px;
    width: 20px;
    height: 1px;
    background: var(--border);
}

/* ===== 服务卡片色调体系（首页 svc-item / 服务页 service-card 通用） =====
   自下而上的柔和渐变：会员服务（basic）青色系 / 增值权益（plus）琥珀色系 */
.svc-group--basic .svc-item,
.service-grid--basic .service-card {
    background-image: linear-gradient(to top, rgba(12,188,188,0.09), rgba(12,188,188,0.035) 46%, rgba(12,188,188,0) 88%);
}
.svc-group--plus .svc-item,
.service-grid--plus .service-card {
    background-image: linear-gradient(to top, rgba(245,158,11,0.10), rgba(245,158,11,0.04) 46%, rgba(245,158,11,0) 88%);
}
/* 悬停：渐变自然加深，边框/投影随色调呼应 */
.svc-group--basic .svc-item:hover,
.service-grid--basic .service-card:hover {
    background-image: linear-gradient(to top, rgba(12,188,188,0.15), rgba(12,188,188,0.055) 46%, rgba(12,188,188,0) 88%);
}
.svc-group--plus .svc-item:hover,
.service-grid--plus .service-card:hover {
    background-image: linear-gradient(to top, rgba(245,158,11,0.16), rgba(245,158,11,0.06) 46%, rgba(245,158,11,0) 88%);
    border-color: rgba(245,158,11,0.45);
    box-shadow: 0 14px 30px rgba(245,158,11,0.15);
}
/* 增值权益（plus）：图标块与强调元素切换为琥珀色调 */
.svc-group--plus .svc-item .icon,
.service-grid--plus .service-card .icon {
    background: linear-gradient(135deg, rgba(245,158,11,0.16), rgba(245,158,11,0.06));
    color: #d97706;
}
.svc-group--plus .svc-item:hover .icon,
.service-grid--plus .service-card:hover .icon {
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 55%, #d97706 100%);
    color: #fff;
    box-shadow: 0 4px 14px rgba(245,158,11,0.38);
}
.service-grid--plus .service-card:hover {
    border-color: rgba(245,158,11,0.5);
    box-shadow: 0 8px 24px rgba(245,158,11,0.14);
}
.service-grid--plus .service-card::before {
    background: linear-gradient(90deg, transparent 4%, rgba(245,158,11,0.85) 50%, transparent 96%);
}
.service-grid--plus .service-card .more { color: #d97706; }
/* 首页分组头标签随色调呼应 */
.svc-group--plus .svc-group-head .tag {
    background: rgba(245,158,11,0.12);
    color: #b45309;
}

/* ===== 服务客户&品牌（双排对向无缝滚动） ===== */
.section--clients { overflow: hidden; }
.brand-marquee {
    display: grid;
    gap: 14px;
}
.marquee-row {
    overflow: hidden;
    /* 两侧淡出遮罩，滚动出入更自然 */
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
    mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee-track {
    display: flex;
    width: max-content;
    animation: brandScroll 52s linear infinite;
    will-change: transform;
}
.marquee-row--reverse .marquee-track {
    animation-duration: 58s;
    animation-direction: reverse;
}
.marquee-row:hover .marquee-track { animation-play-state: paused; }
@keyframes brandScroll {
    from { transform: translateX(0); }
    to   { transform: translateX(-50%); }
}
/* 每组内容完整复制一份，轨道平移 50% 即实现无缝循环 */
.marquee-set {
    display: flex;
    gap: 14px;
    padding-right: 14px;
}
.brand-chip {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    height: 56px;
    padding: 0 26px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--ink-light);
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.02em;
    white-space: nowrap;
    transition: color 0.2s, border-color 0.2s, box-shadow 0.2s;
}
.brand-chip:hover {
    color: var(--brand-dark);
    border-color: rgba(12,188,188,0.45);
    box-shadow: 0 6px 16px rgba(12,188,188,0.12);
}

/* ===== FAQ ===== */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
    border-bottom: 1px solid var(--border);
}
.faq-item:first-child { border-top: 1px solid var(--border); }
.faq-q {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 4px;
    background: none;
    border: none;
    text-align: left;
    font-size: 16px;
    font-weight: 600;
    color: var(--ink);
    line-height: 1.5;
}
.faq-q .arrow { color: var(--ink-muted); transition: transform 0.25s; flex-shrink: 0; }
.faq-item.open .faq-q .arrow { transform: rotate(180deg); }
.faq-item.open .faq-q { color: var(--brand-dark); }
.faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    font-size: 15px;
    color: var(--ink-muted);
    line-height: 1.8;
    padding: 0 4px;
}
.faq-item.open .faq-a {
    max-height: none;
    padding: 0 4px 20px;
}

/* ===== CTA ===== */
.cta-section {
    position: relative;
    overflow: hidden;
    background: var(--bg-dark);
    padding: 64px 0;
    text-align: center;
}
/* CTA 氛围光：青橙双色柔光在标题后方缓慢游移 */
.cta-section::before {
    content: "";
    position: absolute;
    top: -55%;
    left: 50%;
    width: 880px;
    height: 640px;
    margin-left: -440px;
    border-radius: 50%;
    background:
        radial-gradient(closest-side at 40% 45%, rgba(12,188,188,0.30), transparent),
        radial-gradient(closest-side at 65% 60%, rgba(245,158,11,0.14), transparent);
    filter: blur(46px);
    pointer-events: none;
    will-change: transform;
    animation: ctaGlow 16s ease-in-out infinite alternate;
}
.cta-section .container { position: relative; z-index: 1; }
@keyframes ctaGlow {
    from { transform: translate3d(-3%, 1%, 0) scale(1); opacity: 0.85; }
    to   { transform: translate3d(3%, -2%, 0) scale(1.08); opacity: 1; }
}
.cta-section h2 { font-size: 28px; font-weight: 700; color: #fff; margin-bottom: 12px; }
.cta-section p { font-size: 16px; color: rgba(255,255,255,0.6); margin-bottom: 32px; }
.cta-actions { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }

/* ===== 内页 Banner ===== */
.page-hero {
    /* 双团静态极光晕染，低调衬托标题 */
    background:
        radial-gradient(ellipse 620px 340px at 88% 8%, rgba(12,188,188,0.22), transparent 70%),
        radial-gradient(ellipse 520px 320px at 4% 108%, rgba(12,188,188,0.12), transparent 70%),
        var(--bg-dark);
    color: #fff;
    padding: 56px 0;
    position: relative;
    overflow: hidden;
}
.page-hero h1 { font-size: 32px; font-weight: 700; margin-bottom: 10px; }
.page-hero p { font-size: 16px; color: rgba(255,255,255,0.65); max-width: 600px; }
.page-hero .breadcrumb {
    font-size: 13px;
    color: rgba(255,255,255,0.45);
    margin-bottom: 16px;
}
.page-hero .breadcrumb a { color: rgba(255,255,255,0.6); }
.page-hero .breadcrumb a:hover { color: #fff; }

/* ===== 分类 Tabs ===== */
.cat-tabs {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}
.cat-tabs a {
    padding: 9px 22px;
    font-size: 14px;
    font-weight: 500;
    border: 1px solid var(--border);
    border-radius: 20px;
    color: var(--ink-light);
    transition: all 0.15s;
}
.cat-tabs a:hover { border-color: var(--brand); color: var(--brand); }
.cat-tabs a.active {
    background: linear-gradient(135deg, #19c9c5 0%, var(--brand) 45%, var(--brand-dark) 100%);
    border-color: var(--brand);
    color: #fff;
    box-shadow: 0 2px 10px rgba(12,188,188,0.25);
}

/* ===== 服务卡片网格 ===== */
.service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 48px;
}
.service-card {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 24px;
    background: #fff;
    display: flex;
    flex-direction: column;
    transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}
.service-card:hover {
    border-color: var(--brand);
    box-shadow: 0 8px 24px rgba(12,188,188,0.12);
    transform: translateY(-2px);
}
/* 悬停时卡片顶部亮起一道青色光带 */
.service-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent 4%, rgba(12,188,188,0.85) 50%, transparent 96%);
    opacity: 0;
    transform: scaleX(0.55);
    transition: opacity 0.28s ease, transform 0.28s ease;
}
.service-card:hover::before { opacity: 1; transform: scaleX(1); }
.service-card .icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    background: var(--brand-bg);
    color: var(--brand);
    margin-bottom: 18px;
}
.service-card h3 { font-size: 17px; font-weight: 600; margin-bottom: 8px; }
.service-card p { font-size: 14px; color: var(--ink-muted); line-height: 1.7; flex: 1; }
.service-card .more {
    margin-top: 18px;
    font-size: 14px;
    font-weight: 600;
    color: var(--brand);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.service-card .more:hover { color: var(--brand-dark); }

/* ===== 服务详情 ===== */
.detail-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 32px;
    align-items: start;
}
.detail-main {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 40px;
    background: #fff;
}
.detail-main .tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    padding: 4px 14px;
    border-radius: 14px;
    background: var(--brand-bg);
    color: var(--brand-dark);
    margin-bottom: 16px;
}
.detail-main h2 {
    font-size: 26px;
    font-weight: 700;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
}
.detail-main h2 svg { color: var(--brand); }
.detail-main .content {
    font-size: 15px;
    line-height: 2;
    color: var(--ink-light);
}
.detail-side { position: sticky; top: 92px; }
.detail-side .side-card {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    background: #fff;
    margin-bottom: 20px;
}
.side-card h3 {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 14px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-light);
}
.side-card ul li { padding: 7px 0; }
.side-card ul a {
    font-size: 14px;
    color: var(--ink-muted);
    display: flex;
    align-items: center;
    gap: 8px;
    transition: color 0.15s;
}
.side-card ul a:hover { color: var(--brand-dark); }
.side-card ul a svg { color: var(--border); }
.side-card ul a:hover svg { color: var(--brand); }
.side-card .side-cta {
    text-align: center;
    padding-top: 8px;
}
.side-card .side-cta p { font-size: 13px; color: var(--ink-muted); margin-bottom: 12px; }
.side-card .side-cta .phone {
    font-size: 20px;
    font-weight: 700;
    color: var(--ink);
    display: block;
    margin-bottom: 14px;
}

/* ===== 关于 ===== */
.about-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}
.about-intro .text h2 { font-size: 26px; font-weight: 700; margin-bottom: 16px; }
.about-intro .text p { font-size: 15px; color: var(--ink-light); line-height: 1.9; margin-bottom: 14px; }
.about-values {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
.about-value {
    padding: 24px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: #fff;
}
.about-value h4 { font-size: 15px; font-weight: 600; margin-bottom: 6px; color: var(--brand-dark); }
.about-value p { font-size: 13px; color: var(--ink-muted); line-height: 1.6; }

/* 定位引言（关于页）：真源「核心定位」原文 */
.position-quote {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 18px;
    padding: 36px 24px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: #fff;
}
.position-quote svg { color: var(--brand); flex-shrink: 0; }
.position-quote p {
    font-size: 19px;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: 0.01em;
}

/* ===== 底部联系留言条（全站统一） ===== */
.contact-bar {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1100;
    background: #fff;
    box-shadow: 0 -8px 24px rgba(0,0,0,0.08);
    transition: transform 0.25s ease;
    overflow: hidden;
}
.contact-bar.closed { transform: translateY(110%); }
/* ===== 展开吸引特效：底部潮光——光晕以底边为源生长呼吸，涨潮→两浪→退潮（每 9 秒一轮） ===== */
.contact-bar::before {
    /* 常驻底光：贴底深青晕，底部 0-15% 区域明显加深 */
    content: '';
    position: absolute;
    inset: 0;
    z-index: 0;
    background: linear-gradient(to top, rgba(14, 159, 159, 0.28), rgba(14, 159, 159, 0.10) 16%, transparent 42%);
    pointer-events: none;
}
.contact-bar::after {
    /* 潮光层：贴底加深条带 + 左青右琥珀两团光，光心锚定底边、渐变完全收敛在条内，
       用 scaleY 自底边生长/回落模拟潮水涨落（非整层平移，无裁切硬边） */
    content: '';
    position: absolute;
    inset: 0;
    z-index: 0;
    background:
        linear-gradient(to top, rgba(14, 159, 159, 0.34), rgba(14, 159, 159, 0.10) 12%, transparent 26%),
        radial-gradient(90% 160% at 12% 100%, rgba(14, 159, 159, 0.78) 0%, rgba(14, 159, 159, 0.34) 20%, rgba(14, 159, 159, 0.10) 44%, transparent 66%),
        radial-gradient(78% 150% at 88% 100%, rgba(217, 119, 6, 0.45) 0%, rgba(217, 119, 6, 0.12) 28%, transparent 56%);
    opacity: 0;
    transform: scaleY(0.55);
    transform-origin: 50% 100%;
    transition: opacity 0.5s ease;
    pointer-events: none;
    will-change: transform, opacity;
}
.contact-bar.attention::after {
    animation: contactTide 9s ease-in-out infinite;
}
@keyframes contactTide {
    /* 涨潮 → 两波浪涌呼吸（高浓度相位持久） → 缓缓退去 */
    0%   { opacity: 0;    transform: scaleY(0.55); }
    10%  { opacity: 0.9;  transform: scaleY(1); }
    24%  { opacity: 1;    transform: scaleY(1.06); }
    38%  { opacity: 0.78; transform: scaleY(0.96); }
    52%  { opacity: 1;    transform: scaleY(1.04); }
    66%  { opacity: 0.62; transform: scaleY(0.95); }
    82%  { opacity: 0;    transform: scaleY(0.6); }
    100% { opacity: 0;    transform: scaleY(0.55); }
}
/* 关闭按钮：电话按钮右侧的灰色 X（无背景） */
.contact-bar-close {
    flex-shrink: 0;
    align-self: stretch;
    width: 30px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    line-height: 1;
    color: var(--ink-muted);
    background: transparent;
    border: none;
    cursor: pointer;
    transition: color 0.15s, background 0.15s;
}
.contact-bar-close:hover { color: var(--ink); background: var(--bg-alt); }
.contact-bar-inner {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    gap: 12px;
    padding-top: 14px;
    padding-bottom: 14px;
}
.contact-bar-form {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
    min-width: 0;
}
.contact-bar-form input {
    padding: 10px 14px;
    font-size: 14px;
    font-family: inherit;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-alt);
    color: var(--ink);
    transition: border-color 0.15s, background 0.15s;
}
.contact-bar-form input:focus {
    outline: none;
    border-color: var(--brand);
    background: #fff;
}
#cbPhone { width: 170px; flex-shrink: 0; }
#cbContent { flex: 1; min-width: 0; }
.contact-bar .btn { padding: 10px 20px; flex-shrink: 0; white-space: nowrap; }

/* 立即咨询按钮 */
.btn-wechat {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: var(--radius);
    background: #07c160;
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
    flex-shrink: 0;
    transition: background 0.15s;
}
.btn-wechat:hover { background: #06ad56; color: #fff; }

/* 电话呼叫按钮（服务热线） */
.btn-call {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 10px 16px;
    border: 1px solid var(--brand);
    border-radius: var(--radius);
    background: var(--brand-bg);
    color: var(--brand-dark);
    font-size: 14px;
    font-weight: 700;
    white-space: nowrap;
    flex-shrink: 0;
    transition: background 0.15s, color 0.15s;
}
.btn-call:hover { background: var(--brand); color: #fff; }

/* 留言条可见时：页面底部留白 + 隐藏底部居中客服浮标（避免重叠） */
body.has-contact-bar { padding-bottom: 76px; }
body.has-contact-bar .kefu-fab { display: none; }
/* 留言条关闭时：为底部居中悬浮钮留出空间，避免遮挡页脚内容 */
body:not(.has-contact-bar) { padding-bottom: 64px; }

/* 留言提交成功提示 */
.contact-toast {
    position: fixed;
    left: 50%;
    bottom: 96px;
    z-index: 1150;
    transform: translate(-50%, 12px);
    padding: 12px 22px;
    background: #166534;
    color: #fff;
    font-size: 14px;
    border-radius: 999px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.2);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s, transform 0.2s, visibility 0.2s;
}
.contact-toast.show {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, 0);
}

/* ===== 页脚 ===== */
.site-footer {
    background: var(--bg-dark);
    color: #94a3b8;
    padding-top: 56px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 40px;
}
.footer-brand .logo { height: 32px; margin-bottom: 16px; filter: brightness(0) invert(1); opacity: 0.9; }
.footer-brand p { font-size: 14px; line-height: 1.7; max-width: 280px; }
.footer-col h4 {
    font-size: 14px;
    font-weight: 600;
    color: #e2e8f0;
    margin-bottom: 16px;
}
.footer-col a, .footer-col p {
    display: block;
    font-size: 14px;
    color: #94a3b8;
    margin-bottom: 10px;
    transition: color 0.15s;
}
.footer-col a:hover { color: #fff; }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding: 20px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
    color: #64748b;
}
.footer-bottom .icp-link { color: #64748b; transition: color 0.15s; }
.footer-bottom .icp-link:hover { color: #fff; }

/* ===== 悬浮留言/在线客服（关闭状态：底部水平居中，贴合最下方） ===== */
.kefu-fab {
    position: fixed;
    left: 50%;
    bottom: 0;
    z-index: 999;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 13px 26px;
    border-radius: 16px 16px 0 0;
    background: linear-gradient(135deg, #19c9c5 0%, var(--brand) 50%, var(--brand-dark) 100%);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    box-shadow: 0 -4px 14px rgba(0, 0, 0, 0.14);
    transform: translateX(-50%);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.kefu-fab:hover {
    transform: translate(-50%, -2px);
    box-shadow: 0 -6px 18px rgba(0, 0, 0, 0.18);
    color: #fff;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .svc-overview { grid-template-columns: repeat(2, 1fr); }
    .service-grid { grid-template-columns: repeat(2, 1fr); }
    .process { grid-template-columns: repeat(2, 1fr); }
    .process-item::after { display: none; }
    .detail-layout { grid-template-columns: 1fr; }
    .detail-side { position: static; }
    .footer-grid { grid-template-columns: 1fr 1fr; }

    /* Hero：窄屏图文纵向堆叠，形象图居中收窄 */
    .hero-inner { grid-template-columns: 1fr; gap: 40px; }
    .hero-media { max-width: 560px; }
    .hero-desc { max-width: 620px; }

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

@media (max-width: 768px) {
    .section { padding: 48px 0; }
    .section-head h2 { font-size: 24px; }
    .section-head { margin-bottom: 32px; }

    .header-inner { height: 60px; }
    .nav-toggle { display: block; }
    .main-nav {
        display: none;
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        align-items: stretch;
        padding: 12px 20px 20px;
        border-bottom: 1px solid var(--border);
        box-shadow: 0 12px 24px rgba(0,0,0,0.08);
    }
    .main-nav.open { display: flex; }
    .main-nav > a { padding: 12px 14px; }

    .hero { padding: 48px 0 56px; }
    .hero h1 { font-size: 26px; }
    .hero-desc { font-size: 15px; }
    .hero-media { max-width: 480px; margin: 0 auto; }

    .process { grid-template-columns: 1fr; }
    .service-grid { grid-template-columns: 1fr; }
    .pricing-grid { grid-template-columns: 1fr; }
    .svc-group + .svc-group { margin-top: 36px; }
    .svc-group-more { margin-left: 0; }
    .about-intro { grid-template-columns: 1fr; }
    .about-values { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
    .page-hero { padding: 40px 0; }
    .page-hero h1 { font-size: 26px; }
    .detail-main { padding: 24px; }
    .position-quote { flex-direction: column; text-align: center; gap: 10px; padding: 28px 18px; }
    .position-quote p { font-size: 17px; }

    /* 留言条：小屏自动两行 —— 第一行：表单+提交按钮；第二行：立即咨询+电话+关闭 */
    .contact-bar-inner {
        flex-wrap: wrap;
        gap: 10px;
        padding-top: 12px;
        padding-bottom: 12px;
    }
    .contact-bar-form {
        flex: 1 1 100%;
        flex-wrap: nowrap;
        gap: 8px;
    }
    .contact-bar-form input { font-size: 13px; padding: 10px 10px; }
    #cbPhone { width: 104px; flex: none; }
    #cbContent { flex: 1; min-width: 0; }
    .contact-bar-form .btn { flex-shrink: 0; padding: 10px 12px; font-size: 13px; }
    .contact-bar .btn-wechat,
    .contact-bar .btn-call { flex: 1; justify-content: center; padding: 10px 8px; font-size: 13px; }
    body.has-contact-bar { padding-bottom: 130px; }
    .contact-toast { bottom: 144px; }
}

@media (max-width: 480px) {
    .container { padding: 0 16px; }
    .hero h1 { font-size: 23px; }
    .hero-actions .btn { width: 100%; justify-content: center; }
    .svc-overview { grid-template-columns: 1fr; }
    .cta-actions .btn { width: 100%; justify-content: center; }
    .brand-chip { height: 46px; padding: 0 18px; font-size: 13px; }
    .kefu-fab { padding: 11px 20px; font-size: 13px; }
}

/* ===== 动效偏好：用户偏好减少动态时，收敛所有渐变动画 ===== */
@media (prefers-reduced-motion: reduce) {
    .hero::before, .hero::after,
    .cta-section::before,
    .contact-bar.attention::after,
    .btn-primary::after,
    .marquee-track { animation: none; }
    /* 滚动停止后改为可横向滑动浏览完整名单 */
    .marquee-row { overflow-x: auto; -webkit-mask-image: none; mask-image: none; }
}

/* ===== 打印 ===== */
@media print {
    .site-header, .site-footer, .cta-section, .nav-toggle, .contact-bar, .kefu-fab { display: none; }
    .hero { background: #fff; color: #000; padding: 20px 0; }
    .hero::before, .hero::after, .cta-section::before,
    .contact-bar::before, .contact-bar::after { display: none; }
}