:root {
  --ink: #0b1220;
  --navy: #071226;
  --navy-2: #0d1f3d;
  --brand: #1d4ed8;
  --brand-2: #3b82f6;
  --gold: #c8a96a;
  --muted: #667085;
  --line: #e4e9f2;
  --bg: #f5f7fb;
  --card: #ffffff;
  --ok: #16a34a;
  --radius: 18px;
  --shadow: 0 24px 70px rgba(8, 18, 38, .10);
  --shadow-soft: 0 10px 30px rgba(8, 18, 38, .06);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input, textarea, select { font: inherit; }

.container { width: min(1200px, calc(100% - 48px)); margin: 0 auto; }

/* Header */
.site-header {
  position: fixed; inset: 0 0 auto; z-index: 50;
  color: #fff; transition: background .25s ease, box-shadow .25s ease, color .25s ease;
}
.site-header.solid {
  background: rgba(255, 255, 255, .96);
  color: var(--ink);
  box-shadow: 0 1px 0 var(--line), 0 12px 30px rgba(8, 18, 38, .05);
  backdrop-filter: blur(14px);
}
.header-inner { display: flex; align-items: center; gap: 34px; height: 84px; }
.logo { display: inline-flex; align-items: center; gap: 12px; font-size: 19px; font-weight: 800; letter-spacing: -.02em; min-width: 0; }
.logo img { height: 40px; width: auto; max-width: 180px; object-fit: contain; flex: none; }
.site-header:not(.solid) .logo img { filter: brightness(0) invert(1); }
.logo-mark {
  width: 40px; height: 40px; border-radius: 12px; flex: none;
  background: linear-gradient(135deg, var(--brand), #60a5fa);
  display: grid; place-items: center; color: #fff; font-size: 17px; font-weight: 800;
  box-shadow: 0 8px 20px rgba(29, 78, 216, .35);
}
.logo-name { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.nav { display: flex; align-items: center; gap: 28px; margin-left: auto; font-size: 14px; font-weight: 500; }
.nav a { position: relative; padding: 8px 0; opacity: .82; }
.nav a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px;
  background: var(--gold); transform: scaleX(0); transform-origin: left; transition: transform .2s;
}
.nav a:hover, .nav a.active { opacity: 1; }
.nav a:hover::after, .nav a.active::after { transform: scaleX(1); }
.header-actions { display: flex; align-items: center; gap: 12px; margin-left: 8px; }
.header-phone { font-size: 13px; opacity: .72; white-space: nowrap; }
.menu-toggle {
  display: none; border: 1px solid rgba(255,255,255,.35); background: transparent; color: inherit;
  border-radius: 10px; padding: 8px 11px; cursor: pointer; flex: none; white-space: nowrap;
}
.site-header.solid .menu-toggle { border-color: var(--line); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 0; border-radius: 10px; padding: 12px 22px; font-size: 14px; font-weight: 700;
  cursor: pointer; transition: .2s ease; white-space: nowrap;
}
.btn-primary { background: linear-gradient(135deg, var(--brand), #2563eb); color: #fff; box-shadow: 0 10px 24px rgba(29, 78, 216, .28); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 14px 30px rgba(29, 78, 216, .34); }
.btn-ghost { background: transparent; color: inherit; border: 1px solid rgba(255,255,255,.35); }
.btn-ghost:hover { background: rgba(255,255,255,.1); }
.site-header.solid .btn-ghost { border-color: var(--line); color: var(--ink); }
.site-header.solid .btn-ghost:hover { background: #f3f6fb; }
.btn-light { background: #fff; color: var(--navy); }
.btn-light:hover { transform: translateY(-1px); }
.btn-block { width: 100%; }
.btn[disabled] { opacity: .55; cursor: not-allowed; transform: none; }

/* Hero */
.hero {
  position: relative; overflow: hidden; color: #fff;
  background:
    radial-gradient(900px 480px at 14% 18%, rgba(59, 130, 246, .34), transparent 62%),
    radial-gradient(700px 420px at 88% 78%, rgba(200, 169, 106, .16), transparent 65%),
    linear-gradient(135deg, #050d1d 0%, #0a1933 52%, #0d2450 100%);
}
.hero::before {
  content: ""; position: absolute; inset: 0; opacity: .35;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, #000, transparent 85%);
}
.hero::after {
  content: ""; position: absolute; width: 760px; height: 760px; right: -260px; top: -260px;
  border-radius: 50%; border: 1px solid rgba(255,255,255,.10);
  box-shadow: 0 0 0 70px rgba(255,255,255,.025), 0 0 0 140px rgba(255,255,255,.018);
  pointer-events: none;
}
.hero-inner {
  position: relative; z-index: 1;
  padding: 128px 0 84px;
}
.hero-head { margin-bottom: 34px; }
.hero-cols { display: grid; grid-template-columns: 1.18fr .82fr; gap: 56px; align-items: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 12px; letter-spacing: .2em; text-transform: uppercase; color: #b9cdf5; margin-bottom: 22px;
}
.eyebrow::before { content: ""; width: 28px; height: 1px; background: var(--gold); }
.hero h1 { font-size: clamp(26px, 2.9vw, 42px); line-height: 1.2; letter-spacing: -.03em; margin: 0; font-weight: 800; white-space: nowrap; word-break: keep-all; }
.hero-copy p { font-size: 18px; line-height: 1.8; color: rgba(226, 236, 255, .72); max-width: 620px; margin: 0 0 32px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 44px; }
.hero-stats { display: flex; gap: 44px; flex-wrap: wrap; }
.hero-stat strong { display: block; font-size: 32px; line-height: 1.2; letter-spacing: -.02em; }
.hero-stat span { font-size: 13px; color: rgba(226, 236, 255, .55); letter-spacing: .06em; }
.hero-visual { position: relative; display: grid; place-items: center; }
.hero-panel {
  width: 100%; max-width: 420px; padding: 26px;
  border-radius: 22px; border: 1px solid rgba(255,255,255,.16);
  background: linear-gradient(145deg, rgba(255,255,255,.13), rgba(255,255,255,.05));
  backdrop-filter: blur(18px); box-shadow: 0 30px 80px rgba(0,0,0,.35);
}
.panel-badge { display: inline-flex; font-size: 11px; letter-spacing: .14em; color: #d9e6ff; border: 1px solid rgba(255,255,255,.2); border-radius: 999px; padding: 5px 10px; margin-bottom: 20px; }
.panel-row { display: flex; align-items: center; justify-content: space-between; padding: 15px 0; border-top: 1px solid rgba(255,255,255,.12); }
.panel-row:first-of-type { border-top: 0; }
.panel-row span { font-size: 13px; color: rgba(226, 236, 255, .64); }
.panel-row strong { font-size: 14px; font-weight: 700; }
.panel-bar { height: 6px; border-radius: 999px; background: rgba(255,255,255,.12); margin-top: 18px; overflow: hidden; }
.panel-bar i { display: block; height: 100%; width: 86%; border-radius: inherit; background: linear-gradient(90deg, var(--gold), #f2dca8); }
.hero-orbit { position: absolute; width: 520px; height: 520px; border-radius: 50%; border: 1px dashed rgba(255,255,255,.12); pointer-events: none; }

/* Sections */
.section { padding: 100px 0; }
.section.alt { background: #fff; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 30px; margin-bottom: 42px; }
.section-head.center { display: block; text-align: center; max-width: 720px; margin-left: auto; margin-right: auto; }
.section-label { display: inline-flex; align-items: center; gap: 10px; font-size: 12px; letter-spacing: .18em; text-transform: uppercase; color: var(--brand); font-weight: 700; margin-bottom: 14px; }
.section-label::before { content: ""; width: 22px; height: 1px; background: var(--gold); }
.section-label.light { color: #dbe7ff; }
.section-head h2 { font-size: clamp(22px, 2vw, 30px); line-height: 1.3; letter-spacing: -.02em; margin: 0; }
.section-head p { margin: 12px 0 0; color: var(--muted); font-size: 15px; max-width: 620px; }
.section-head.center p { margin-left: auto; margin-right: auto; }
.text-link { color: var(--brand); font-size: 14px; font-weight: 700; display: inline-flex; align-items: center; gap: 6px; white-space: nowrap; }
.text-link:hover { gap: 10px; }

/* Intro */
.intro-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 70px; align-items: center; }
.intro-copy h2 { font-size: clamp(22px, 2vw, 30px); line-height: 1.32; letter-spacing: -.02em; margin: 0 0 18px; }
.intro-copy p { color: var(--muted); font-size: 15px; margin: 0 0 18px; }
.check-list { list-style: none; padding: 0; margin: 24px 0 28px; display: grid; gap: 12px; }
.check-list li { display: flex; gap: 10px; font-size: 14px; color: #344054; }
.check-list li::before { content: "✓"; color: var(--brand); font-weight: 800; }
.intro-visual { position: relative; }
.intro-card {
  position: relative; overflow: hidden; border-radius: 24px; padding: 38px;
  background: linear-gradient(145deg, #0b1a35, #123163); color: #fff; box-shadow: var(--shadow);
}
.intro-card::after { content: ""; position: absolute; width: 320px; height: 320px; right: -120px; bottom: -140px; border-radius: 50%; border: 1px solid rgba(255,255,255,.14); }
.intro-quote { font-size: 54px; line-height: 1; color: var(--gold); font-family: Georgia, serif; }
.intro-card-title { font-size: 24px; font-weight: 800; margin: 18px 0 10px; letter-spacing: -.02em; }
.intro-card p { color: rgba(226,236,255,.68); font-size: 14px; margin: 0 0 26px; }
.intro-badges { display: flex; gap: 10px; flex-wrap: wrap; }
.intro-badges span { border: 1px solid rgba(255,255,255,.18); border-radius: 999px; padding: 6px 12px; font-size: 12px; color: #dbe7ff; }

/* Service cards */
.service-categories { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 26px; }
.chip { border: 1px solid var(--line); background: #fff; border-radius: 999px; padding: 9px 16px; font-size: 13px; cursor: pointer; color: #475467; transition: .18s; }
.chip:hover { border-color: #b9c9ff; color: var(--brand); }
.chip.active { background: var(--navy); border-color: var(--navy); color: #fff; }
.service-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.service-card { background: #fff; border: 1px solid var(--line); border-radius: 20px; overflow: hidden; transition: .22s; display: flex; flex-direction: column; }
.service-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: #c9d7ff; }
.service-media {
  position: relative; aspect-ratio: 1 / 1; overflow: hidden;
  background: linear-gradient(145deg, #e8efff, #f7f9fd);
  background-size: cover; background-position: center;
}
.service-card:hover .service-media { transform: scale(1.02); }
.service-media { transition: transform .5s ease; }
.service-media-fallback { display: grid; place-items: center; width: 100%; height: 100%; color: #1d4ed8; font-weight: 800; font-size: 30px; letter-spacing: -.02em; }
.service-badge {
  position: absolute; left: 14px; top: 14px; z-index: 1;
  background: rgba(7, 18, 38, .68); color: #fff;
  font-size: 11px; letter-spacing: .06em; padding: 5px 11px; border-radius: 999px;
  backdrop-filter: blur(6px);
}
.service-body { padding: 20px 22px 22px; display: flex; flex-direction: column; flex: 1; }
.service-card h3 { font-size: 18px; margin: 0 0 7px; letter-spacing: -.01em; }
.service-card p { color: var(--muted); font-size: 13px; line-height: 1.7; margin: 0 0 18px; flex: 1; }
.service-foot { display: flex; align-items: center; justify-content: space-between; margin-top: auto; padding-top: 14px; border-top: 1px solid #f1f4fa; }
.service-price { color: #b45309; font-weight: 800; font-size: 20px; letter-spacing: -.02em; }
.service-price small { font-size: 12px; font-weight: 600; margin-right: 1px; }
.service-arrow { color: var(--brand); font-weight: 700; font-size: 13px; }

/* Advantages */
.advantage-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.advantage { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 26px; position: relative; overflow: hidden; }
.advantage::before { content: ""; position: absolute; left: 0; top: 0; width: 100%; height: 3px; background: linear-gradient(90deg, var(--brand), var(--gold)); opacity: 0; transition: .2s; }
.advantage:hover::before { opacity: 1; }
.advantage .num { font-size: 12px; font-weight: 800; letter-spacing: .14em; color: var(--gold); }
.advantage h3 { font-size: 17px; margin: 14px 0 8px; }
.advantage p { color: var(--muted); font-size: 13px; margin: 0; }

/* Capability / process / solutions */
.capability-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.capability-card { background: #fff; border: 1px solid var(--line); border-radius: 20px; padding: 28px; transition: .22s; }
.capability-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-soft); border-color: #c9d7ff; }
.capability-icon { width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center; background: #eef4ff; color: var(--brand); font-weight: 800; margin-bottom: 18px; }
.capability-card h3 { font-size: 18px; margin: 0 0 8px; }
.capability-card p { color: var(--muted); font-size: 13px; margin: 0; }
/* 首页主营服务：一行三项，标题在上、说明在下 */
.capability-grid.bars { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.capability-grid.bars .capability-card { display: block; padding: 24px 24px 26px; border-radius: 14px; }
.capability-grid.bars .capability-card:hover { transform: translateY(-2px); }
.capability-grid.bars .capability-card h3 { width: auto; margin: 0 0 8px; font-size: 17px; letter-spacing: -.01em; }
.capability-grid.bars .capability-card p { margin: 0; font-size: 13px; line-height: 1.75; }
.process-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.process-step { position: relative; padding: 26px 22px; background: #fff; border: 1px solid var(--line); border-radius: 18px; }
.process-step .step-num { font-size: 30px; font-weight: 800; color: #dbe4f5; letter-spacing: -.04em; line-height: 1; margin-bottom: 16px; }
.process-step h3 { font-size: 17px; margin: 0 0 6px; }
.process-step p { color: var(--muted); font-size: 13px; margin: 0; }
.solution-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.solution-card { position: relative; overflow: hidden; padding: 28px 24px; border-radius: 18px; background: linear-gradient(145deg, #0b1a35, #123163); color: #fff; min-height: 190px; display: flex; flex-direction: column; }
.solution-card::after { content: ""; position: absolute; width: 160px; height: 160px; right: -60px; bottom: -80px; border-radius: 50%; border: 1px solid rgba(255,255,255,.14); }
.solution-card h3 { font-size: 19px; margin: 0 0 8px; }
.solution-card p { color: rgba(226,236,255,.66); font-size: 13px; margin: 0; }
.solution-card .solution-tag { font-size: 11px; letter-spacing: .14em; color: var(--gold); margin-bottom: 18px; }

/* Qualification / FAQ */
.qualification { background: #fff; border: 1px solid var(--line); border-radius: 22px; padding: 38px; box-shadow: var(--shadow-soft); }
.qualification-head {
  display: flex; align-items: flex-end; justify-content: space-between; gap: 28px;
  padding-bottom: 26px; margin-bottom: 28px; border-bottom: 1px solid var(--line); flex-wrap: wrap;
}
.qualification-name { font-size: 26px; font-weight: 800; letter-spacing: -.03em; color: var(--ink); }
.qualification-type { margin-top: 8px; font-size: 13px; color: var(--muted); letter-spacing: .04em; }
.qualification-code { text-align: right; }
.qualification-code span { display: block; font-size: 11px; letter-spacing: .12em; color: var(--muted); text-transform: uppercase; margin-bottom: 6px; }
.qualification-code strong { font-size: 19px; font-weight: 800; letter-spacing: .04em; color: var(--brand); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.info-block-title { font-size: 13px; font-weight: 700; color: var(--muted); letter-spacing: .06em; margin-bottom: 10px; }
.info-block-text { margin: 0; font-size: 14px; line-height: 1.9; color: #344054; }
.qualification-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 34px; align-items: start; }
.info-list { display: grid; gap: 12px; }
.info-row { display: flex; gap: 14px; font-size: 14px; line-height: 1.7; }
.info-row span:first-child { width: 132px; flex: none; color: var(--muted); }
.info-row span:last-child { color: #344054; }
.qualification-note { margin-top: 22px; padding: 14px 16px; background: #f7f9fd; border-radius: 12px; color: var(--muted); font-size: 12px; line-height: 1.8; }
.qualification-note a { color: var(--brand); font-weight: 700; }
.faq-list { display: grid; gap: 12px; max-width: 920px; margin: 0 auto; }
.faq-item { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 18px 22px; }
.faq-item summary { cursor: pointer; font-weight: 700; list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; color: var(--brand); font-size: 20px; line-height: 1; }
.faq-item[open] summary::after { content: "−"; }
.faq-item p { color: var(--muted); font-size: 14px; margin: 12px 0 0; }

/* News */
.news-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.news-card { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 26px; transition: .22s; display: flex; flex-direction: column; min-height: 230px; }
.news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-soft); border-color: #c9d7ff; }
.news-date { display: inline-flex; align-items: baseline; gap: 8px; color: var(--muted); font-size: 12px; margin-bottom: 16px; }
.news-date strong { font-size: 26px; color: var(--brand); letter-spacing: -.03em; }
.news-card h3 { font-size: 17px; line-height: 1.45; margin: 0 0 10px; }
.news-card p { color: var(--muted); font-size: 13px; margin: 0 0 18px; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.news-more { margin-top: auto; color: var(--brand); font-size: 13px; font-weight: 700; }

/* CTA */
.cta-band {
  position: relative; overflow: hidden; border-radius: 24px; padding: 54px 56px;
  background: linear-gradient(135deg, #071226, #0d2450 65%, #123163); color: #fff;
  display: flex; align-items: center; justify-content: space-between; gap: 30px;
  box-shadow: var(--shadow);
}
.cta-band::after { content: ""; position: absolute; width: 360px; height: 360px; right: -120px; top: -160px; border-radius: 50%; border: 1px solid rgba(255,255,255,.12); box-shadow: 0 0 0 50px rgba(255,255,255,.03); }
.cta-band h2 { font-size: clamp(24px, 2.6vw, 34px); margin: 0 0 8px; letter-spacing: -.02em; }
.cta-band p { margin: 0; color: rgba(226,236,255,.66); font-size: 14px; }
.cta-band .btn { position: relative; z-index: 1; flex: none; }

/* Page hero */
.page-hero {
  position: relative; overflow: hidden; color: #fff; padding: 170px 0 78px;
  background: radial-gradient(700px 300px at 12% 20%, rgba(59,130,246,.3), transparent 60%), linear-gradient(135deg, #050d1d, #0a1933 55%, #0d2450);
}
.page-hero::after { content: ""; position: absolute; inset: 0; opacity: .25; background-image: linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px); background-size: 56px 56px; mask-image: linear-gradient(to bottom, #000, transparent); }
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { font-size: clamp(34px, 4vw, 50px); letter-spacing: -.03em; margin: 0 0 12px; }
.page-hero p { color: rgba(226,236,255,.68); margin: 0; max-width: 680px; }
.breadcrumb { display: flex; gap: 8px; font-size: 12px; color: rgba(226,236,255,.55); margin-bottom: 18px; }
.breadcrumb a:hover { color: #fff; }

/* Article / content */
.article { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 38px; box-shadow: var(--shadow-soft); }
.article h1 { margin-top: 0; font-size: clamp(28px, 3vw, 38px); letter-spacing: -.03em; }
.article .meta { color: var(--muted); font-size: 13px; margin-bottom: 24px; }
.article-content { font-size: 15px; line-height: 1.9; color: #344054; }
.article-content img { border-radius: 12px; margin: 18px 0; }
.article-content h2, .article-content h3 { margin-top: 30px; color: var(--ink); }
.article-content pre { background: #0b1220; color: #e2e8f0; padding: 18px; border-radius: 12px; overflow: auto; }
.article-content blockquote { margin: 20px 0; padding: 14px 18px; border-left: 4px solid var(--brand); background: #f7f9fd; color: #344054; }

/* Lists / filters */
.filter-bar { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 26px; }
.filter-bar input { flex: 1; min-width: 0; border: 1px solid var(--line); border-radius: 10px; padding: 11px 15px; background: #fff; outline: none; }
.filter-bar input:focus { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(29,78,216,.1); }
.empty { padding: 54px 0; text-align: center; color: var(--muted); font-size: 14px; }

/* Product detail */
.product-detail { display: grid; grid-template-columns: 1.08fr .92fr; gap: 44px; align-items: start; }
.product-cover { border-radius: 22px; overflow: hidden; border: 1px solid var(--line); background: linear-gradient(145deg, #e8efff, #f7f9fd); aspect-ratio: 1 / 1; background-size: cover; background-position: center; box-shadow: var(--shadow-soft); }
.product-cover img { width: 100%; height: 100%; object-fit: cover; }
.product-info { position: sticky; top: 110px; }
.product-info h1 { font-size: clamp(28px, 3vw, 38px); letter-spacing: -.03em; margin: 0 0 10px; }
.product-info .subtitle { color: var(--muted); margin-bottom: 20px; }
.product-price { font-size: 40px; color: #b45309; font-weight: 800; letter-spacing: -.03em; margin: 14px 0 6px; }
.product-stock { font-size: 13px; color: var(--muted); }
.buy-row { display: flex; gap: 12px; margin-top: 26px; align-items: center; }
.qty { width: 84px; padding: 11px; border: 1px solid var(--line); border-radius: 10px; }
.product-cover-fallback { display: grid; place-items: center; height: 100%; color: #1d4ed8; font-weight: 800; font-size: 26px; letter-spacing: -.02em; padding: 24px; text-align: center; }
.sku-block { margin-top: 24px; }
.sku-block-title { font-size: 13px; font-weight: 700; color: #344054; margin-bottom: 10px; }
.sku-list { display: grid; gap: 9px; }
.sku-option { display: flex; align-items: center; gap: 12px; padding: 13px 16px; border: 1px solid var(--line); border-radius: 12px; cursor: pointer; background: #fff; transition: .16s; }
.sku-option:hover { border-color: #b9c9ff; }
.sku-option.active { border-color: var(--brand); background: #f4f8ff; box-shadow: 0 0 0 3px rgba(29,78,216,.08); }
.sku-radio { width: 16px; height: 16px; border-radius: 50%; border: 2px solid #cbd5e1; flex: none; position: relative; }
.sku-option.active .sku-radio { border-color: var(--brand); }
.sku-option.active .sku-radio::after { content: ""; position: absolute; inset: 2px; border-radius: 50%; background: var(--brand); }
.sku-name { flex: 1; font-size: 14px; color: #344054; }
.sku-price { font-size: 15px; font-weight: 800; color: #b45309; }

/* 登录/注册：整页深色背景，左侧品牌文案右对齐居中，右侧登录卡片 */
.auth-page {
  position: relative; overflow: hidden; min-height: 100vh; color: #fff;
  display: flex; flex-direction: column; align-items: center; justify-content: flex-start;
  padding: 110px 24px 44px;
  background:
    radial-gradient(900px 480px at 14% 18%, rgba(59, 130, 246, .34), transparent 62%),
    radial-gradient(700px 420px at 88% 78%, rgba(200, 169, 106, .16), transparent 65%),
    linear-gradient(135deg, #050d1d 0%, #0a1933 52%, #0d2450 100%);
}
.auth-page::before {
  content: ""; position: absolute; inset: 0; opacity: .32; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: linear-gradient(to bottom, #000, transparent 88%);
}
.auth-page::after {
  content: ""; position: absolute; width: 620px; height: 620px; right: -220px; bottom: -300px;
  border-radius: 50%; border: 1px solid rgba(255,255,255,.12);
  box-shadow: 0 0 0 60px rgba(255,255,255,.03), 0 0 0 120px rgba(255,255,255,.02);
  pointer-events: none;
}
.auth-shell {
  position: relative; z-index: 1; width: 100%; margin-top: auto;
  display: grid; grid-template-columns: minmax(0, 1fr) 440px;
  align-items: center; gap: clamp(48px, 7vw, 140px);
  padding: 0 clamp(24px, 6vw, 120px);
}
.auth-copy { justify-self: end; max-width: 520px; text-align: right; }
.auth-copy .eyebrow { justify-content: flex-end; }
.auth-copy h1 { font-size: clamp(22px, 1.9vw, 28px); line-height: 1.5; letter-spacing: -.02em; margin: 0 0 20px; font-weight: 800; white-space: nowrap; }
.auth-copy p { color: rgba(226, 236, 255, .72); font-size: 15px; line-height: 1.85; margin: 0 0 26px; }
.auth-points { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.auth-points li { display: flex; justify-content: flex-end; gap: 10px; font-size: 14px; color: #dbe7ff; }
.auth-points li::before { content: "✓"; color: var(--gold); font-weight: 800; flex: none; }
.auth-card {
  width: 440px; max-width: 100%; color: var(--ink);
  background: #fff; border: 1px solid rgba(255,255,255,.16); border-radius: 22px;
  padding: 34px 34px; box-shadow: 0 34px 90px rgba(0,0,0,.42);
}
.auth-card h2 { font-size: 28px; letter-spacing: -.03em; margin: 0 0 8px; }
.auth-card .hint { color: var(--muted); font-size: 13px; margin-bottom: 22px; }
.auth-card .btn-block { margin-top: 6px; }
.auth-card .form-tip { margin-top: 18px; text-align: center; }
.auth-card .form-tip a { color: var(--brand); font-weight: 700; }
.auth-card .btn-ghost { border-color: var(--line); color: var(--ink); }
.auth-card .btn-ghost:hover { background: #f5f7fb; }
.auth-back { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--muted); margin-bottom: 20px; }
.auth-back:hover { color: var(--brand); }
.auth-footnote { position: relative; z-index: 1; margin-top: 36px; margin-bottom: auto; text-align: center; font-size: 12px; color: rgba(226, 236, 255, .42); line-height: 1.8; }

/* Forms */
.field { margin-bottom: 15px; }
.field label { display: block; font-size: 13px; font-weight: 700; margin-bottom: 7px; color: #344054; }
.field input, .field textarea, .field select { width: 100%; border: 1px solid var(--line); border-radius: 10px; padding: 12px 13px; background: #fff; outline: none; transition: .15s; }
.field input:focus, .field textarea:focus, .field select:focus { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(29,78,216,.12); }
.field-row { display: flex; gap: 12px; }
.field-row .field { flex: 1; }
.form-tip { font-size: 12px; color: var(--muted); margin-top: 10px; }
.form-error { color: #dc2626; font-size: 13px; min-height: 20px; margin: 8px 0; }

/* Account */
.account-layout { display: grid; grid-template-columns: 230px 1fr; gap: 26px; align-items: start; }
.account-layout > * { min-width: 0; }
.account-nav { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 12px; position: sticky; top: 110px; scrollbar-width: none; }
.account-nav::-webkit-scrollbar { display: none; }
.account-nav button { display: block; width: 100%; text-align: left; border: 0; background: transparent; padding: 12px 13px; border-radius: 9px; color: #475467; cursor: pointer; font-size: 14px; }
.account-nav button:hover { background: #f5f7fb; }
.account-nav button.active { background: #eef4ff; color: var(--brand); font-weight: 700; }
.panel { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow-soft); min-width: 0; }
.panel h2 { margin: 0 0 18px; font-size: 22px; letter-spacing: -.02em; }
.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table-wrap { width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; }
.table th, .table td { text-align: left; padding: 13px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
.table th { color: var(--muted); font-weight: 700; font-size: 11px; text-transform: uppercase; letter-spacing: .06em; }
.badge { display: inline-block; padding: 3px 9px; border-radius: 999px; font-size: 12px; background: #f3f4f6; color: #475467; }
.badge.ok { background: #e8f7ee; color: var(--ok); }
.badge.warn { background: #fff7e6; color: #b45309; }
.badge.bad { background: #fef2f2; color: #dc2626; }

/* Footer */
.site-footer { margin-top: 0; background: #050d1d; color: #98a6bd; padding: 74px 0 28px; font-size: 13px; }
.footer-grid { display: grid; grid-template-columns: 1.7fr 1fr 1fr 1.1fr; gap: 44px; }
.footer-logo { display: inline-flex; align-items: center; gap: 12px; color: #fff; font-size: 19px; font-weight: 800; margin-bottom: 16px; }
.footer-logo img { height: 38px; width: auto; max-width: 170px; object-fit: contain; filter: brightness(0) invert(1); }
.footer-desc { color: #98a6bd; line-height: 1.8; margin: 0 0 20px; max-width: 340px; }
.footer-contact { display: grid; gap: 7px; }
.footer-contact strong { color: #e2e8f0; font-size: 15px; }
.footer-title { color: #fff; font-size: 14px; font-weight: 700; margin-bottom: 16px; }
.footer-links { display: grid; gap: 10px; }
.footer-links a:hover { color: #fff; }
.footer-bottom { margin-top: 46px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.1); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; color: #7f8da6; font-size: 12px; }
.footer-bottom a { color: #98a6bd; }
.footer-bottom a:hover { color: #fff; }

/* Toast */
.toast { position: fixed; left: 50%; bottom: 30px; transform: translateX(-50%) translateY(20px); background: #0b1220; color: #fff; padding: 11px 20px; border-radius: 10px; font-size: 14px; opacity: 0; pointer-events: none; transition: .25s; z-index: 100; box-shadow: 0 16px 40px rgba(0,0,0,.25); }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* Reveal */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* Legacy grids still used by inner pages */
.grid { display: grid; gap: 22px; }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: .2s; }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-soft); }
.card-media { aspect-ratio: 16/10; display: grid; place-items: center; background: linear-gradient(145deg, #e8efff, #f7f9fd); background-size: cover; background-position: center; color: var(--brand); font-weight: 800; }
.card-body { padding: 22px; }
.card-title { font-size: 17px; margin: 0 0 8px; }
.card-text { color: var(--muted); font-size: 13px; margin: 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card-meta { display: flex; align-items: center; justify-content: space-between; margin-top: 16px; color: var(--muted); font-size: 12px; }
.price { color: #b45309; font-weight: 800; font-size: 18px; }
.price small { font-size: 12px; }

/* Responsive */
@media (max-width: 1024px) {
  .hero-inner { padding: 126px 0 70px; }
  .hero-cols { grid-template-columns: 1fr; gap: 0; }
  .hero-visual { display: none; }
  .intro-grid { grid-template-columns: 1fr; gap: 40px; }
  .service-grid, .news-grid, .grid-3, .capability-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .capability-grid.bars { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .advantage-grid, .process-grid, .solution-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .qualification-grid { grid-template-columns: 1fr; }
  .qualification-code { text-align: left; }
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
  .product-detail { grid-template-columns: 1fr; }
  .product-info { position: static; }
  .account-layout { grid-template-columns: 1fr; }
  .account-nav { position: static; display: flex; gap: 6px; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .account-nav button { white-space: nowrap; width: auto; }
}

/* 窄屏：登录页改为上下排列 */
@media (max-width: 1180px) {
  .auth-shell { display: block; width: 100%; padding: 0; }
  .auth-copy { max-width: 520px; margin: 0 auto 34px; text-align: left; }
  .auth-copy .eyebrow { justify-content: flex-start; }
  .auth-copy h1 { white-space: normal; word-break: keep-all; }
  .auth-points { display: none; }
  .auth-card { margin: 0 auto; }
}

/* 平板与手机：导航收起为下拉菜单 */
@media (max-width: 960px) {
  .header-inner { height: 72px; gap: 16px; }
  .header-phone { display: none; }
  .nav {
    display: none; position: absolute; left: 0; right: 0; top: 72px;
    background: #fff; color: var(--ink); padding: 10px 22px;
    flex-direction: column; align-items: flex-start; gap: 0;
    box-shadow: 0 24px 44px rgba(8,18,38,.16);
  }
  .nav.open { display: flex; }
  .nav a { width: 100%; padding: 13px 0; border-bottom: 1px solid var(--line); }
  .nav a:last-child { border-bottom: 0; }
  .nav a::after { display: none; }
  .menu-toggle { display: inline-flex; margin-left: auto; }
  .header-actions { margin-left: 0; }
  .header-actions .btn { padding: 9px 16px; }
}

@media (max-width: 760px) {
  .container { width: calc(100% - 36px); }
  .header-inner { gap: 12px; }
  .logo { font-size: 15px; gap: 10px; }
  .logo img { height: 34px; }
  .logo-name { max-width: 150px; }
  .header-actions { gap: 8px; }
  .header-actions .btn { padding: 8px 12px; font-size: 13px; flex: none; }
  .menu-toggle { padding: 7px 10px; font-size: 13px; }
  .hero-inner { padding: 106px 0 58px; }
  .hero h1 { font-size: 25px; white-space: normal; }
  .hero-head { margin-bottom: 22px; }
  .hero-copy p { font-size: 15px; margin-bottom: 26px; }
  .hero-actions { margin-bottom: 32px; }
  .hero-stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
  .hero-stat strong { font-size: 20px; }
  .hero-stat span { font-size: 11px; }
  .section { padding: 56px 0; }
  .section-head { display: block; margin-bottom: 30px; }
  .section-head .text-link { margin-top: 14px; display: inline-flex; }
  .service-grid, .news-grid, .grid-3, .grid-4, .advantage-grid, .capability-grid, .process-grid, .solution-grid { grid-template-columns: 1fr; }
  .capability-grid.bars { grid-template-columns: 1fr; }
  .capability-grid.bars .capability-card { padding: 20px 22px; }
  .intro-card { padding: 28px 24px; }
  .cta-band { display: block; padding: 32px 24px; }
  .cta-band h2 { font-size: 22px; }
  .cta-band .btn { margin-top: 20px; }
  .page-hero { padding: 118px 0 46px; }
  .page-hero h1 { font-size: 26px; }
  .page-hero p { font-size: 14px; }
  .breadcrumb { flex-wrap: wrap; }
  .article { padding: 24px 18px; }
  .article h1 { font-size: 24px; }
  .article-content { font-size: 14px; }
  .qualification { padding: 24px 18px; }
  .qualification-head { flex-direction: column; align-items: flex-start; gap: 16px; }
  .qualification-name { font-size: 20px; }
  .qualification-code strong { font-size: 16px; }
  .info-row { flex-direction: column; gap: 2px; }
  .info-row span:first-child { width: auto; font-size: 12px; letter-spacing: .04em; }
  .product-info h1 { font-size: 24px; }
  .product-price { font-size: 32px; }
  .buy-row { flex-wrap: wrap; }
  .buy-row .btn { flex: 1; }
  .panel { padding: 20px 16px; }
  .panel h2 { font-size: 19px; }
  .table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .table-wrap .table { min-width: 620px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
  .footer-grid > div:first-child { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; }
  .field-row { flex-direction: column; gap: 12px; }
  .field-row .field { width: 100%; margin-bottom: 0; }
  .toast { left: 18px; right: 18px; transform: translateY(20px); text-align: center; }
  .toast.show { transform: translateY(0); }
  .auth-page { padding: 100px 18px 40px; }
  .auth-copy { max-width: none; }
  .auth-copy h1 { font-size: 23px; }
  .auth-copy p { font-size: 14px; margin-bottom: 0; }
  .auth-card { width: 100%; padding: 30px 22px; }
  .auth-footnote { margin-top: 30px; font-size: 11px; }
}

@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
  .hero-actions .btn { flex: 1; }
  .hero-stat strong { font-size: 18px; }
  .hero-stat span { font-size: 10px; letter-spacing: 0; }
  .auth-card { padding: 26px 18px; }
  .auth-card h2 { font-size: 24px; }
}

@media (max-width: 400px) {
  .logo-name { display: none; }
}