:root {
  --primary: #A91E22;
  --primary-dark: #7C1216;
  --primary-deep: #4A0E10;
  --primary-light: #F7E9E7;
  --accent: #C9A368;
  --accent-dark: #96702E;
  --text: #2B2320;
  --muted: #6E625C;
  --border: #E8DFD8;
  --bg: #FAF5F0;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: "PingFang SC", "Microsoft YaHei", sans-serif; color: var(--text); line-height: 1.7; background: #fff; }
.container { max-width: 1120px; margin: 0 auto; padding: 0 20px; }
a { color: var(--primary); text-decoration: none; }
img { max-width: 100%; display: block; }

/* ========== topbar ========== */
.topbar { background: var(--primary-deep); color: #EADFD6; font-size: 13px; }
.topbar-inner { display: flex; align-items: center; justify-content: space-between; height: 38px; gap: 16px; }
.topbar-tag { color: #C9B4A8; letter-spacing: .2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.topbar-contact { display: flex; align-items: center; gap: 10px; white-space: nowrap; }
.topbar-contact a { color: #F3C880; display: inline-flex; align-items: center; gap: 6px; font-weight: 600; letter-spacing: .5px; }
.topbar-contact a:hover { color: #fff; }
.topbar-contact svg { width: 15px; height: 15px; fill: currentColor; }
.topbar-sep { color: #6B4A44; }
.topbar-wx { color: #C9B4A8; }

/* ========== float call ========== */
.float-call { position: fixed; right: 12px; top: 50%; transform: translateY(-50%); z-index: 60; display: flex; align-items: center; gap: 9px; background: var(--primary); color: #fff; padding: 10px 18px 10px 14px; border-radius: 40px; box-shadow: 0 8px 24px rgba(169,30,34,.35); transition: background .15s, transform .15s; }
.float-call:hover { background: var(--primary-dark); transform: translateY(-50%) translateX(-2px); }
.float-call svg { width: 20px; height: 20px; fill: #fff; flex: none; }
.float-call-txt { display: flex; flex-direction: column; line-height: 1.3; }
.float-call-txt b { font-size: 14px; font-weight: 600; }
.float-call-txt em { font-style: normal; font-size: 12px; color: #F7D9C4; letter-spacing: .5px; }

/* ========== header ========== */
.site-header { border-bottom: 1px solid var(--border); background: #fff; position: sticky; top: 0; z-index: 10; }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.logo { font-size: 20px; font-weight: 600; color: var(--primary-dark); letter-spacing: .5px; display: flex; align-items: center; gap: 10px; }
.logo img { height: 42px; width: auto; max-width: 190px; object-fit: contain; }
.logo em { font-style: normal; color: var(--accent-dark); }
.nav { display: flex; gap: 26px; align-items: center; }
.nav a { color: var(--text); font-size: 15px; }
.nav a:hover { color: var(--primary); }
.nav-cta { background: var(--primary); color: #fff !important; padding: 9px 20px; border-radius: 6px; }
.nav-ext { border: 1px solid var(--accent); color: var(--accent-dark) !important; padding: 8px 18px; border-radius: 6px; }
.nav-ext:hover { background: #F5EBDA; }

/* ========== hero ========== */
.hero { background: linear-gradient(135deg, var(--primary-deep) 0%, var(--primary-dark) 58%, #9C2A24 100%); color: #fff; padding: 96px 0 130px; position: relative; overflow: hidden; }
.hero::before, .hero::after { content: ""; position: absolute; border-radius: 50%; border: 1px solid rgba(255,255,255,.12); }
.hero::before { width: 420px; height: 420px; right: -120px; top: -160px; }
.hero::after { width: 260px; height: 260px; right: 140px; bottom: -140px; }
.hero-inner { display: grid; grid-template-columns: 1.15fr .85fr; gap: 60px; align-items: center; position: relative; z-index: 1; }
.hero-badge { display: inline-block; border: 1px solid rgba(255,255,255,.35); border-radius: 20px; padding: 4px 16px; font-size: 13px; color: #F0DCC8; margin-bottom: 18px; }
.hero h1 { font-size: 40px; line-height: 1.3; margin-bottom: 16px; }
.hero h1 em { font-style: normal; color: #F3C880; }
.hero .hero-lead { font-size: 16px; opacity: .88; max-width: 560px; margin-bottom: 30px; }
.hero-actions { display: flex; gap: 14px; align-items: center; }
.hero-note { margin-top: 22px; font-size: 13px; color: #D8BBA8; }
.hero-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.stat-box { background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.16); border-radius: 12px; padding: 20px 18px; }
.stat-box b { display: block; font-size: 30px; font-weight: 600; color: #F3C880; line-height: 1.2; }
.stat-box span { font-size: 13px; color: #F0DCC8; }

/* ========== usp ========== */
.usp-wrap { position: relative; z-index: 2; margin-top: -64px; }
.usp-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.usp { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 24px 20px; box-shadow: 0 10px 30px rgba(74,14,16,.08); }
.usp-icon { width: 44px; height: 44px; border-radius: 10px; background: var(--primary-light); display: flex; align-items: center; justify-content: center; margin-bottom: 14px; }
.usp-icon svg { width: 24px; height: 24px; stroke: var(--primary); fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.usp h3 { font-size: 15px; margin-bottom: 4px; }
.usp p { font-size: 13px; color: var(--muted); }

/* ========== sections ========== */
section.block { padding: 64px 0; }
.block.alt { background: var(--bg); }
h2.section-title { font-size: 28px; margin-bottom: 6px; color: var(--primary-deep); }
p.section-sub { color: var(--muted); margin-bottom: 32px; }
.section-head { text-align: center; }
.section-head p.section-sub { margin-bottom: 36px; }

/* ========== category cards ========== */
.cat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.cat-card { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 26px 22px; display: block; color: var(--text); transition: transform .15s, box-shadow .15s, border-color .15s; position: relative; }
.cat-card:hover { transform: translateY(-4px); box-shadow: 0 12px 28px rgba(74,14,16,.12); border-color: var(--primary); }
.cat-icon { width: 48px; height: 48px; border-radius: 12px; background: var(--primary-light); display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.cat-icon svg { width: 26px; height: 26px; stroke: var(--primary); fill: none; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.cat-card h3 { font-size: 16px; margin-bottom: 4px; }
.cat-card p { font-size: 13px; color: var(--muted); }
.cat-count { margin-top: 14px; font-size: 12px; color: var(--primary); }
.cat-arrow { position: absolute; right: 18px; top: 26px; color: #C9B8AC; font-size: 18px; transition: color .15s; }
.cat-card:hover .cat-arrow { color: var(--primary); }

/* ========== cards & grids ========== */
.grid { display: grid; gap: 20px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.card { border: 1px solid var(--border); border-radius: 12px; overflow: hidden; background: #fff; transition: box-shadow .15s, transform .15s; display: block; color: var(--text); }
.card:hover { box-shadow: 0 12px 28px rgba(74,14,16,.10); transform: translateY(-3px); }
.card-img { height: 200px; overflow: hidden; background: var(--primary-light); }
.card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s; }
.card:hover .card-img img { transform: scale(1.04); }
.card-body { padding: 16px 18px 18px; }
.card-body h3 { font-size: 16px; margin-bottom: 6px; }
.card-body p { font-size: 13px; color: var(--muted); }
.tag { display: inline-block; background: var(--primary-light); color: var(--primary-dark); font-size: 12px; padding: 2px 10px; border-radius: 10px; margin-bottom: 8px; }
.price { font-size: 14px; color: var(--accent-dark); font-weight: 600; margin-top: 8px; }
.meta { font-size: 12px; color: #A8998D; margin-top: 6px; }

/* ========== process ========== */
.flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: step; }
.flow-step { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 24px 20px; position: relative; }
.flow-step::before { counter-increment: step; content: "0" counter(step); display: block; font-size: 13px; font-weight: 600; color: var(--accent-dark); margin-bottom: 10px; letter-spacing: 1px; }
.flow-step h3 { font-size: 15px; margin-bottom: 6px; }
.flow-step p { font-size: 13px; color: var(--muted); }

/* ========== faq accordion ========== */
.faq-list { max-width: 820px; margin: 0 auto; }
details.faq { border: 1px solid var(--border); border-radius: 10px; margin-bottom: 12px; background: #fff; overflow: hidden; }
details.faq summary { cursor: pointer; padding: 16px 20px; font-size: 15px; font-weight: 500; list-style: none; display: flex; justify-content: space-between; align-items: center; }
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary::after { content: "+"; font-size: 20px; color: var(--primary); line-height: 1; }
details.faq[open] summary::after { content: "−"; }
details.faq .faq-a { padding: 0 20px 16px; color: var(--muted); font-size: 14px; }

/* ========== cta band ========== */
.cta-band { background: linear-gradient(135deg, var(--primary-deep), var(--primary-dark)); color: #fff; border-radius: 16px; padding: 48px 56px; display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap; }
.cta-band h2 { font-size: 24px; margin-bottom: 6px; }
.cta-band p { opacity: .85; font-size: 14px; }

/* ========== buttons ========== */
.btn { display: inline-block; background: var(--accent); color: #fff; padding: 12px 30px; border-radius: 8px; font-size: 15px; border: none; cursor: pointer; transition: background .15s; }
.btn:hover { background: var(--accent-dark); }
.btn-outline { background: transparent; border: 1px solid rgba(255,255,255,.55); }
.btn-outline:hover { background: rgba(255,255,255,.1); }
.btn-primary-blue { background: var(--primary); }
.btn-primary-blue:hover { background: var(--primary-dark); }
.btn-sm { padding: 6px 14px; font-size: 13px; }

/* ========== article / detail ========== */
.detail { max-width: 800px; margin: 0 auto; padding: 40px 20px; }
.detail h1 { font-size: 27px; margin: 10px 0; color: var(--primary-deep); }
.detail .content { margin-top: 24px; }
.detail .content p { margin: 12px 0; }
.detail .content h2 { margin: 22px 0 8px; color: var(--primary-dark); font-size: 19px; }
.detail .content img { margin: 16px 0; border-radius: 8px; }
.detail table { border-collapse: collapse; width: 100%; margin: 16px 0; }
.detail table th, .detail table td { border: 1px solid var(--border); padding: 9px 13px; text-align: left; font-size: 14px; }
.detail table th { background: var(--primary-light); }

/* ========== forms ========== */
.form { max-width: 560px; }
.form label { display: block; font-size: 14px; margin: 14px 0 6px; }
.form input, .form textarea { width: 100%; border: 1px solid var(--border); border-radius: 6px; padding: 10px 12px; font-size: 14px; font-family: inherit; }
.form input:focus, .form textarea:focus { outline: 2px solid var(--primary-light); border-color: var(--primary); }
.alert-ok { background: #eaf3de; border: 1px solid #97c459; color: #27500a; padding: 12px 16px; border-radius: 6px; margin: 16px 0; }

/* ========== pills ========== */
.pills { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 28px; }
.pills a { border: 1px solid var(--border); border-radius: 18px; padding: 6px 18px; font-size: 14px; color: var(--text); }
.pills a.on { background: var(--primary); border-color: var(--primary); color: #fff; }

/* ========== footer ========== */
.site-footer { background: #241412; color: #C4B2A6; margin-top: 70px; padding: 52px 0 20px; font-size: 14px; }
.site-footer h3 { color: #fff; font-size: 15px; margin-bottom: 10px; }
.site-footer a { color: #C4B2A6; }
.site-footer a:hover { color: #fff; }
.footer-grid { display: grid; grid-template-columns: 2fr 1.2fr 1.2fr; gap: 32px; padding-bottom: 28px; }
.copyright { border-top: 1px solid #3A2420; padding-top: 16px; font-size: 13px; }

/* ========== breadcrumb ========== */
.crumbs { font-size: 13px; color: var(--muted); padding: 18px 0 0; }
.crumbs a { color: var(--muted); }

@media (max-width: 900px) {
  .grid-3, .cat-grid, .usp-row, .flow { grid-template-columns: repeat(2, 1fr); }
  .hero-inner { grid-template-columns: 1fr; gap: 36px; }
  .hero { padding: 64px 0 110px; }
  .footer-grid { grid-template-columns: 1fr; }
  .cta-band { padding: 36px 28px; }
}
@media (max-width: 600px) {
  .grid-3, .grid-2, .cat-grid, .usp-row, .flow, .hero-stats { grid-template-columns: 1fr; }
  .nav { gap: 12px; }
  .nav a:not(.nav-cta) { font-size: 13px; }
  .hero h1 { font-size: 30px; }
  .topbar-tag { display: none; }
  .topbar-inner { justify-content: center; }
  .float-call { right: 10px; padding: 9px 15px 9px 12px; gap: 7px; }
  .float-call-txt b { font-size: 13px; }
  .float-call-txt em { font-size: 11px; }
}