/* ========================================
   主题8:都市简约 (Modern Minimalist)
   适用:一线/新一线城市(上海、广州、北京等)
   ======================================== */
:root {
  --c-bg: #FAFAF9;
  --c-bg-2: #F0EFEC;
  --c-surface: #FFFFFF;
  --c-surface-2: #F5F4F1;
  --c-border: rgba(0, 0, 0, 0.08);
  --c-text: #2D2D2D;
  --c-text-soft: #5B5B5B;
  --c-text-mute: #8E8E8E;
  --c-primary: #1F2937;
  --c-primary-2: #111827;
  --c-accent: #DC2626;
  --c-accent-2: #F59E0B;
  --c-white: #1A1A1A;
  --shadow-md: 0 8px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 20px 50px rgba(0,0,0,0.12);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --container: 1200px;
  --header-h: 72px;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Heiti SC", "Noto Sans SC", "Source Han Sans SC", "WenQuanYi Micro Hei", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: var(--font-sans); font-size: 16px; line-height: 1.7; color: var(--c-text); background: var(--c-bg); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color .25s ease; }
a:hover { color: var(--c-accent); }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
h1,h2,h3,h4,h5 { margin: 0; line-height: 1.25; letter-spacing: -0.01em; color: var(--c-white); font-weight: 700; }
p { margin: 0 0 1em; }
ul,ol { margin: 0; padding: 0; list-style: none; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.site-header { position: fixed; inset: 0 0 auto 0; height: var(--header-h); z-index: 100; background: rgba(250, 250, 249, 0.85); backdrop-filter: saturate(180%) blur(14px); border-bottom: 1px solid transparent; transition: all .3s ease; }
.site-header.is-scrolled { background: rgba(250, 250, 249, 0.95); border-bottom-color: var(--c-border); }
.nav-inner { max-width: var(--container); margin: 0 auto; height: 100%; display: flex; align-items: center; justify-content: space-between; padding: 0 24px; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; color: var(--c-white); }
.brand-name { font-size: 20px; }
.brand-r { font-size: 10px; color: var(--c-accent); margin-left: 2px; }
.brand-divider { color: var(--c-text-mute); font-weight: 400; }
.brand-tag { font-size: 14px; color: var(--c-text-soft); font-weight: 500; }
.nav-toggle { display: none; width: 40px; height: 40px; flex-direction: column; gap: 5px; align-items: center; justify-content: center; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--c-white); }
.nav-menu { display: flex; gap: 32px; align-items: center; }
.nav-menu a { font-size: 15px; color: var(--c-text-soft); padding: 8px 0; }
.nav-menu a:hover { color: var(--c-accent); }
.nav-cta { padding: 8px 22px !important; background: var(--c-white) !important; color: #fff !important; border-radius: 8px; font-weight: 700; }
.nav-cta:hover { color: #fff !important; background: var(--c-accent) !important; }
@media (max-width: 920px) { .nav-toggle { display: flex; } .nav-menu { position: fixed; inset: var(--header-h) 0 auto 0; flex-direction: column; gap: 0; background: var(--c-surface); padding: 16px 24px 32px; transform: translateY(-110%); transition: transform .35s ease; border-bottom: 1px solid var(--c-border); } .nav-menu.is-open { transform: translateY(0); } .nav-menu a { width: 100%; padding: 14px 0; border-bottom: 1px solid var(--c-border); } }
.hero { position: relative; padding: calc(var(--header-h) + 80px) 0 96px; overflow: hidden; background: linear-gradient(180deg, var(--c-bg) 0%, var(--c-bg-2) 100%); }
.hero::before { content: ''; position: absolute; top: 20%; right: 10%; width: 300px; height: 300px; background: radial-gradient(circle, rgba(220, 38, 38, 0.08) 0%, transparent 60%); pointer-events: none; }
.hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.3fr 1fr; gap: 64px; align-items: center; }
.hero-eyebrow { display: inline-block; padding: 6px 16px; background: var(--c-surface); color: var(--c-white); border-radius: 999px; font-size: 13px; font-weight: 500; margin-bottom: 20px; border: 1px solid var(--c-border); }
.hero-title { font-size: clamp(32px, 4.5vw, 56px); font-weight: 800; margin-bottom: 20px; letter-spacing: -0.02em; }
.hero-accent { color: var(--c-accent); }
.hero-sub { font-size: 17px; color: var(--c-text-soft); margin-bottom: 32px; max-width: 560px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 32px; }
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 14px 30px; font-size: 15px; font-weight: 600; border-radius: 8px; transition: all .25s ease; cursor: pointer; }
.btn-primary { background: var(--c-white); color: #fff; }
.btn-primary:hover { background: var(--c-accent); transform: translateY(-2px); color: #fff; }
.btn-ghost { background: transparent; color: var(--c-white); border: 1px solid var(--c-border); }
.btn-ghost:hover { border-color: var(--c-white); }
.hero-points { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.hero-points li { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--c-text-soft); }
.hero-points .dot { width: 4px; height: 4px; background: var(--c-accent); border-radius: 50%; }
.hero-card { position: relative; padding: 36px 32px; background: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--radius-xl); box-shadow: var(--shadow-md); }
.hero-card-inner { display: flex; flex-direction: column; gap: 16px; }
.hero-card-row { display: flex; justify-content: space-between; align-items: center; padding: 14px 18px; background: var(--c-bg-2); border-radius: var(--radius-md); }
.hero-card-row span:first-child { font-size: 16px; font-weight: 600; color: var(--c-white); }
.hero-tag-cyan, .hero-tag-orange { font-size: 11px; padding: 4px 10px; border-radius: 6px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; }
.hero-tag-cyan { background: var(--c-white); color: #fff; }
.hero-tag-orange { background: var(--c-accent); color: #fff; }
.hero-card-foot { margin-top: 8px; padding-top: 16px; border-top: 1px solid var(--c-border); text-align: center; font-size: 13px; color: var(--c-text-mute); }
@media (max-width: 920px) { .hero-inner { grid-template-columns: 1fr; gap: 40px; } .hero-card { order: -1; } }
.section { padding: 96px 0; position: relative; background: var(--c-bg); }
.section-alt { background: var(--c-bg-2); }
.section-contact { background: var(--c-surface); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-eyebrow { display: inline-block; font-size: 13px; letter-spacing: 0.2em; color: var(--c-accent); font-weight: 700; margin-bottom: 14px; }
.section-title { font-size: clamp(28px, 3.5vw, 42px); font-weight: 800; margin-bottom: 14px; }
.section-sub { font-size: 16px; color: var(--c-text-soft); }
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 920px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .grid-3, .grid-4 { grid-template-columns: 1fr; } }
.card { padding: 32px 28px; background: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--radius-lg); transition: all .3s ease; }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--c-white); }
.card-icon { width: 48px; height: 48px; display: flex; align-items: center; justify-content: center; background: var(--c-bg-2); border-radius: var(--radius-md); color: var(--c-white); margin-bottom: 20px; }
.card-icon svg { width: 24px; height: 24px; }
.card h3 { font-size: 20px; font-weight: 700; margin-bottom: 12px; }
.card p { font-size: 15px; color: var(--c-text-soft); margin-bottom: 16px; }
.card-list li { position: relative; padding-left: 20px; font-size: 14px; color: var(--c-text-soft); margin-bottom: 6px; }
.card-list li::before { content: '—'; position: absolute; left: 0; top: 0; color: var(--c-accent); }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
@media (max-width: 920px) { .steps { grid-template-columns: repeat(2, 1fr); } }
.step { padding: 28px 24px; background: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--radius-lg); }
.step-num { display: inline-block; font-size: 24px; font-weight: 800; color: var(--c-accent); margin-bottom: 12px; }
.step h3 { font-size: 18px; margin-bottom: 8px; }
.step p { font-size: 14px; color: var(--c-text-soft); }
.timeline { position: relative; max-width: 900px; margin: 0 auto; }
.timeline::before { content: ''; position: absolute; left: 24px; top: 0; bottom: 0; width: 1px; background: var(--c-border); }
.timeline-item { position: relative; padding: 0 0 32px 70px; }
.timeline-dot { position: absolute; left: 16px; top: 8px; width: 18px; height: 18px; background: var(--c-surface); border: 3px solid var(--c-white); border-radius: 50%; }
.timeline-item h3 { font-size: 20px; margin-bottom: 8px; }
.timeline-item p { font-size: 15px; color: var(--c-text-soft); }
.chip { padding: 24px 20px; background: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--radius-md); text-align: center; transition: all .3s ease; }
.chip:hover { border-color: var(--c-white); transform: translateY(-3px); }
.chip-num { display: inline-block; font-size: 13px; font-weight: 700; color: var(--c-accent); margin-bottom: 12px; }
.chip h3 { font-size: 17px; margin-bottom: 8px; }
.chip p { font-size: 13px; color: var(--c-text-soft); }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-bottom: 56px; }
@media (max-width: 920px) { .stats { grid-template-columns: repeat(2, 1fr); } }
.stat { padding: 32px 24px; background: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--radius-lg); text-align: center; }
.stat-num { font-size: 42px; font-weight: 800; color: var(--c-white); margin-bottom: 8px; letter-spacing: -0.02em; }
.stat-label { font-size: 14px; color: var(--c-text-soft); font-weight: 600; margin-bottom: 6px; }
.stat-desc { font-size: 12px; color: var(--c-text-mute); }
.case { padding: 28px 24px; background: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--radius-lg); }
.case-tag { display: inline-block; font-size: 12px; padding: 4px 12px; background: var(--c-bg-2); color: var(--c-text-soft); border-radius: 4px; margin-bottom: 12px; }
.case h3 { font-size: 18px; margin-bottom: 10px; }
.case p { font-size: 14px; color: var(--c-text-soft); }
.about { display: grid; grid-template-columns: 1fr 1.6fr; gap: 56px; align-items: center; }
@media (max-width: 920px) { .about { grid-template-columns: 1fr; gap: 32px; } }
.about-photo img { width: 100%; aspect-ratio: 1/1; object-fit: cover; border-radius: var(--radius-lg); }
.about-photo-tag { display: inline-block; margin-top: 12px; padding: 8px 14px; background: var(--c-surface); border: 1px solid var(--c-border); border-radius: 6px; font-size: 13px; }
.about-text h3 { font-size: 26px; margin-bottom: 16px; }
.about-text p { font-size: 15px; color: var(--c-text-soft); }
.about-list { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin: 16px 0 24px; }
@media (max-width: 600px) { .about-list { grid-template-columns: 1fr; } }
.about-list li { display: flex; gap: 8px; align-items: center; font-size: 14px; color: var(--c-text-soft); }
.about-list .dot { width: 4px; height: 4px; background: var(--c-accent); border-radius: 50%; }
.about-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.faq { max-width: 900px; margin: 0 auto; }
.faq-item { margin-bottom: 8px; background: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--radius-md); }
.faq-item[open] { border-color: var(--c-white); }
.faq-item summary { display: flex; align-items: center; gap: 16px; padding: 18px 24px; cursor: pointer; list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-num { font-size: 13px; font-weight: 700; color: var(--c-accent); }
.faq-q { flex: 1; font-size: 16px; font-weight: 600; color: var(--c-white); }
.faq-arrow { width: 16px; height: 16px; border-right: 2px solid var(--c-text-soft); border-bottom: 2px solid var(--c-text-soft); transform: rotate(45deg); transition: transform .3s ease; }
.faq-item[open] .faq-arrow { transform: rotate(-135deg); }
.faq-a { padding: 0 24px 20px 58px; font-size: 15px; color: var(--c-text-soft); }
.contact { display: grid; grid-template-columns: 1.4fr 1fr; gap: 48px; align-items: start; }
@media (max-width: 920px) { .contact { grid-template-columns: 1fr; } }
.contact-info { display: flex; flex-direction: column; gap: 16px; }
.contact-item { padding: 18px 22px; background: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--radius-md); }
.contact-label { font-size: 13px; color: var(--c-text-mute); margin-bottom: 6px; }
.contact-value { font-size: 17px; color: var(--c-white); font-weight: 600; }
.contact-qr { text-align: center; padding: 24px; background: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--radius-lg); }
.contact-qr img { width: 200px; height: 200px; margin: 0 auto 12px; border-radius: var(--radius-md); }
.contact-qr p { font-size: 14px; color: var(--c-text-soft); }
.links-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 8px; }
@media (max-width: 920px) { .links-grid { grid-template-columns: repeat(4, 1fr); } }
@media (max-width: 600px) { .links-grid { grid-template-columns: repeat(3, 1fr); } }
.links-grid a { display: block; padding: 10px 12px; background: var(--c-surface); border: 1px solid var(--c-border); border-radius: 6px; font-size: 13px; color: var(--c-text-soft); text-align: center; transition: all .25s ease; }
.links-grid a:hover { color: var(--c-white); border-color: var(--c-white); }
.site-footer { background: var(--c-white); color: #fff; padding: 56px 0 0; }
.footer-inner { display: grid; grid-template-columns: 1.2fr 2fr; gap: 48px; }
@media (max-width: 920px) { .footer-inner { grid-template-columns: 1fr; } }
.footer-brand p { font-size: 14px; color: rgba(255,255,255,0.7); margin-top: 12px; }
.footer-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
@media (max-width: 600px) { .footer-cols { grid-template-columns: repeat(2, 1fr); } }
.footer-col h4 { font-size: 15px; color: #fff; margin-bottom: 14px; }
.footer-col a { display: block; font-size: 14px; color: rgba(255,255,255,0.7); padding: 5px 0; }
.footer-col a:hover { color: var(--c-accent); }
.footer-copy { margin-top: 40px; padding: 20px 0; border-top: 1px solid rgba(255,255,255,0.1); }
.footer-copy-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.footer-copy p { margin: 0; font-size: 12.5px; color: rgba(255,255,255,0.5); }
.footer-copy a { color: inherit; }
.footer-copy a:hover { color: var(--c-accent); }
.footer-beian { display: flex; gap: 12px; flex-wrap: wrap; }
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .7s ease var(--delay, 0s), transform .7s ease var(--delay, 0s); }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } html { scroll-behavior: auto; } }

.hero-card-head{display:flex;align-items:center;gap:10px;padding-bottom:14px;margin-bottom:6px;border-bottom:1px solid var(--c-border)}
.hero-card-dot{width:10px;height:10px;border-radius:50%;background:var(--c-primary);box-shadow:0 0 0 4px rgba(56,189,248,.2);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.hero-card-title{font-size:13px;font-weight:600;color:var(--c-text-soft);letter-spacing:.5px}
.hero-card-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:18px;padding-top:18px;border-top:1px dashed var(--c-border)}
.hero-card-stat{text-align:center;padding:10px 4px;background:rgba(6,26,46,.4);border-radius:var(--radius-md)}
.hero-card-stat b{display:block;font-size:24px;font-weight:800;color:var(--c-primary);line-height:1.1}
.hero-card-stat b sup{font-size:13px;opacity:.85;margin-left:1px}
.hero-card-stat span{display:block;margin-top:4px;font-size:11px;color:var(--c-text-mute)}
.hero-trust{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:48px auto 0;padding:24px 28px;background:linear-gradient(135deg,var(--c-surface),var(--c-surface-2));border:1px solid var(--c-border);border-radius:var(--radius-xl);position:relative;z-index:1;max-width:var(--container-w)}
.trust-item{text-align:center;padding:8px 0;position:relative}
.trust-item:not(:last-child)::after{content:"";position:absolute;right:0;top:20%;bottom:20%;width:1px;background:var(--c-border)}
.trust-item b{display:block;font-size:clamp(20px,2.4vw,28px);font-weight:800;background:linear-gradient(90deg,var(--c-primary),var(--c-accent-2));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:6px}
.trust-item span{font-size:13px;color:var(--c-text-mute)}
.hero-features{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin:32px auto 0;max-width:var(--container-w);position:relative;z-index:1}
.hero-feature{padding:28px 22px;background:linear-gradient(160deg,var(--c-surface),var(--c-surface-2));border:1px solid var(--c-border);border-radius:var(--radius-lg);transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease}
.hero-feature:hover{transform:translateY(-4px);border-color:var(--c-primary);box-shadow:0 18px 40px rgba(6,26,46,.45)}
.hero-feature-icon{width:48px;height:48px;display:flex;align-items:center;justify-content:center;background:rgba(56,189,248,.12);color:var(--c-primary);border-radius:var(--radius-md);margin-bottom:16px}
.hero-feature-icon svg{width:26px;height:26px}
.hero-feature h3{font-size:17px;font-weight:700;margin-bottom:8px;color:var(--c-white)}
.hero-feature p{font-size:14px;color:var(--c-text-soft);line-height:1.65}
@media (max-width:920px){.hero-trust{grid-template-columns:repeat(2,1fr)}.trust-item:nth-child(2)::after{display:none}.hero-features{grid-template-columns:repeat(2,1fr)}.hero-card-stats{grid-template-columns:repeat(3,1fr)}}
@media (max-width:560px){.hero-trust{grid-template-columns:1fr 1fr;padding:18px}.hero-features{grid-template-columns:1fr}}