/* ==========================================================================
   JINHUI ALUMINUM — 铝单板外贸站样式
   设计语言：工业金属 + 干净的 B2B 排版
   ========================================================================== */

:root {
  --ink: #0d1b2a;
  --ink-2: #16304a;
  --ink-soft: #27405c;
  --steel: #5c6b7a;
  --steel-lt: #8b97a4;
  --line: #e3e8ee;
  --line-soft: #eef2f6;
  --bg: #ffffff;
  --bg-2: #f6f8fa;
  --bg-3: #eef2f6;
  --accent: #d2451e;
  --accent-dark: #a8350f;
  --accent-soft: #fdeeea;
  --gold: #b5892f;
  --ok: #1d7a4c;
  --radius: 6px;
  --radius-lg: 10px;
  --shadow-sm: 0 1px 3px rgba(13, 27, 42, .07);
  --shadow: 0 6px 22px rgba(13, 27, 42, .09);
  --wrap: 1200px;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", "PingFang SC", "Microsoft YaHei", Roboto, Arial, sans-serif;
  --mono: "SF Mono", Consolas, "Liberation Mono", Menlo, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  font-size: 16px;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { line-height: 1.25; margin: 0 0 .5em; font-weight: 700; letter-spacing: -.01em; }
h1 { font-size: clamp(30px, 4.2vw, 48px); }
h2 { font-size: clamp(24px, 3vw, 34px); }
h3 { font-size: clamp(18px, 2vw, 22px); }
h4 { font-size: 17px; }
p { margin: 0 0 1em; }
ul, ol { margin: 0 0 1em; padding-left: 1.25em; }
li { margin-bottom: .35em; }

/* 双语切换 ------------------------------------------------------------- */
html[lang="en"] [data-lang="zh"],
html[lang="zh"] [data-lang="en"] { display: none !important; }
html[lang="zh"] body { letter-spacing: 0; }

/* 布局 ----------------------------------------------------------------- */
.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.section { padding: 72px 0; }
.section--tight { padding: 48px 0; }
.section--alt { background: var(--bg-2); }
.section--dark { background: var(--ink); color: #fff; }
.section--dark h1, .section--dark h2, .section--dark h3, .section--dark h4 { color: #fff; }
.section--dark p { color: #c6d2de; }
.section-head { max-width: 720px; margin-bottom: 40px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.eyebrow {
  display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: .16em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 12px;
}
.section--dark .eyebrow { color: #ff9166; }
.lead { font-size: 18px; color: var(--steel); }
.grid { display: grid; gap: 28px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }

/* 顶栏 + 导航 ---------------------------------------------------------- */
.topbar { background: var(--ink); color: #b9c6d4; font-size: 13px; }
.topbar .wrap { display: flex; gap: 24px; flex-wrap: wrap; align-items: center; padding-top: 8px; padding-bottom: 8px; }
.topbar a { color: #dbe4ee; }
.topbar .spacer { margin-left: auto; }
.nav { position: sticky; top: 0; z-index: 60; background: rgba(255,255,255,.96); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.nav .wrap { display: flex; align-items: center; gap: 28px; height: 68px; }
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-weight: 800; letter-spacing: .04em; font-size: 19px; flex-shrink: 0; }
.logo:hover { text-decoration: none; }
.logo-mark { width: 34px; height: 34px; border-radius: 5px; background: linear-gradient(135deg, var(--ink) 0%, #2c4a68 100%); position: relative; overflow: hidden; }
.logo-mark::after {
  content: ""; position: absolute; inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,.5) 1.1px, transparent 1.3px);
  background-size: 7px 7px; background-position: 3px 3px;
}
.logo-sub { display: block; font-size: 10px; font-weight: 500; color: var(--steel); letter-spacing: .18em; line-height: 1; }
.nav-links { display: flex; gap: 4px; margin-left: auto; align-items: center; }
.nav-links > a { padding: 8px 12px; border-radius: 5px; color: var(--ink-soft); font-size: 15px; font-weight: 500; white-space: nowrap; }
.nav-links > a:hover { background: var(--bg-2); text-decoration: none; }
.nav-links > a.active { color: var(--accent); font-weight: 600; }
.nav-cta { margin-left: 8px; padding: 9px 16px !important; font-size: 14px !important; }
.nav-dropdown { position: relative; }
.nav-dropbtn {
  display: inline-flex; align-items: center; gap: 5px; background: none; border: 0; cursor: pointer;
  font-family: var(--sans); padding: 8px 12px; border-radius: 5px; color: var(--ink-soft);
  font-size: 15px; font-weight: 500; white-space: nowrap;
}
.nav-dropbtn:hover { background: var(--bg-2); }
.nav-dropbtn.active { color: var(--accent); font-weight: 600; }
.nav-menu {
  display: none; position: absolute; top: calc(100% + 6px); left: 0; min-width: 236px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 7px; z-index: 70;
}
.nav-dropdown:hover .nav-menu, .nav-dropdown:focus-within .nav-menu { display: block; }
.nav-menu a { display: block; padding: 9px 12px; border-radius: 4px; font-size: 14px; color: var(--ink-soft); }
.nav-menu a:hover { background: var(--bg-2); text-decoration: none; color: var(--accent); }
@media (max-width: 900px) {
  .nav-menu { position: static; box-shadow: none; border: 0; padding: 0 0 0 14px; min-width: 0; }
  .nav-dropdown:hover .nav-menu { display: none; }
  .nav-dropdown.open .nav-menu { display: block; }
  .nav-dropbtn { padding: 11px 12px; }
}
.lang-switch { display: flex; border: 1px solid var(--line); border-radius: 20px; overflow: hidden; height: 32px; margin-left: 12px; }
.lang-switch button {
  border: 0; background: #fff; color: var(--steel); font-size: 12px; font-weight: 700;
  letter-spacing: .06em; padding: 0 12px; cursor: pointer; font-family: var(--sans);
}
.lang-switch button.on { background: var(--ink); color: #fff; }
.burger { display: none; margin-left: auto; background: none; border: 1px solid var(--line); border-radius: 5px; width: 40px; height: 36px; cursor: pointer; }
.burger span { display: block; width: 18px; height: 2px; background: var(--ink); margin: 3px auto; }

/* 按钮 ----------------------------------------------------------------- */
.btn {
  display: inline-block; padding: 12px 24px; border-radius: var(--radius); font-weight: 600;
  font-size: 15px; border: 1px solid transparent; cursor: pointer; text-align: center;
  font-family: var(--sans); transition: .16s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); }
.btn-outline { border-color: var(--line); color: var(--ink); background: #fff; }
.btn-outline:hover { border-color: var(--ink); }
.btn-light { background: #fff; color: var(--ink); }
.btn-ghost-light { border-color: rgba(255,255,255,.45); color: #fff; }
.btn-ghost-light:hover { background: rgba(255,255,255,.12); }
.btn-lg { padding: 15px 32px; font-size: 16px; }
.btn-row { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 24px; }
.btn svg { vertical-align: -3px; margin-right: 6px; }

/* 首屏 ----------------------------------------------------------------- */
.hero {
  position: relative; overflow: hidden; color: #fff;
  background:
    linear-gradient(120deg, rgba(9,20,34,.94) 0%, rgba(20,44,70,.86) 55%, rgba(13,27,42,.7) 100%),
    repeating-linear-gradient(90deg, #2a4059 0 2px, transparent 2px 14px);
  padding: 96px 0 88px;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,.14) 1.4px, transparent 1.6px);
  background-size: 26px 26px; opacity: .55;
}
.hero::after {
  content: ""; position: absolute; right: -8%; top: -10%; width: 46%; height: 130%;
  background: linear-gradient(200deg, rgba(210,69,30,.35), rgba(181,137,47,.12) 45%, transparent 70%);
  transform: skewX(-12deg);
}
.hero > .wrap { position: relative; z-index: 2; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center; }
.hero h1 { color: #fff; margin-bottom: 18px; }
.hero .lead { color: #cdd8e4; font-size: 19px; max-width: 620px; }
.hero-points { list-style: none; padding: 0; margin: 26px 0 0; display: grid; gap: 10px; }
.hero-points li { display: flex; gap: 10px; align-items: flex-start; color: #dbe4ee; font-size: 15px; margin: 0; }
.hero-points li::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); margin-top: 10px; flex-shrink: 0; }
.hero-card {
  background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.16);
  border-radius: var(--radius-lg); padding: 26px; backdrop-filter: blur(6px);
}
.hero-card h3 { font-size: 16px; color: #fff; margin-bottom: 14px; letter-spacing: .04em; text-transform: uppercase; }
.hero-card .row { display: flex; justify-content: space-between; padding: 9px 0; border-bottom: 1px solid rgba(255,255,255,.1); font-size: 14px; color: #cfdae6; }
.hero-card .row:last-of-type { border-bottom: 0; }
.hero-card .row b { color: #fff; }

/* 信任条 / 数据 -------------------------------------------------------- */
.trust-strip { background: var(--bg-2); border-bottom: 1px solid var(--line); padding: 22px 0; }
.trust-strip .wrap { display: flex; gap: 34px; flex-wrap: wrap; align-items: center; justify-content: center; }
.trust-item { display: flex; align-items: center; gap: 9px; font-size: 14px; color: var(--steel); font-weight: 600; }
.trust-item .dot { width: 22px; height: 22px; border-radius: 4px; background: var(--ink); color: #fff; font-size: 11px; display: grid; place-items: center; font-weight: 700; }
.stats { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; }
.stat { text-align: center; padding: 22px 12px; border-right: 1px solid rgba(255,255,255,.14); }
.stat:last-child { border-right: 0; }
.stat .num { font-size: clamp(26px, 3vw, 38px); font-weight: 800; color: #fff; line-height: 1.1; }
.stat .num em { font-style: normal; font-size: .55em; margin-left: 2px; }
.stat .lbl { font-size: 13px; color: #a9b8c8; margin-top: 6px; }

/* 卡片 ----------------------------------------------------------------- */
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  overflow: hidden; transition: .18s ease; display: flex; flex-direction: column;
}
.card:hover { box-shadow: var(--shadow); transform: translateY(-3px); border-color: #cfd8e3; }
.card-body { padding: 22px; flex: 1; display: flex; flex-direction: column; }
.card-body h3 { font-size: 18px; margin-bottom: 8px; }
.card-body p { color: var(--steel); font-size: 15px; flex: 1; }
.card-link { margin-top: 14px; font-size: 14px; font-weight: 600; }
.card--dark { background: var(--ink); border-color: rgba(255,255,255,.12); }
.card--dark .card-body h3, .card--dark .card-body p { color: #fff; }
.card--dark .card-body p { color: #b8c6d4; }
.card--dark:hover { background: var(--ink-2); }

/* 图片占位块 ----------------------------------------------------------- */
.ph {
  position: relative; width: 100%; overflow: hidden; border-radius: 6px;
  background: linear-gradient(135deg, #dfe5ec 0%, #c3ccd7 40%, #e8edf2 70%, #b9c3ce 100%);
  display: grid; place-items: center;
}
.ph::before {
  content: ""; position: absolute; inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,.42) 1px, transparent 1.2px);
  background-size: 10px 10px;
}
.ph > span {
  position: relative; z-index: 2; font-size: 12px; letter-spacing: .1em; text-transform: uppercase;
  color: #5a6875; font-weight: 700; text-align: center; padding: 0 16px;
}
.ph--wide { aspect-ratio: 16 / 9; }
.ph--photo { aspect-ratio: 4 / 3; }
.ph--square { aspect-ratio: 1 / 1; }
.ph--tall { aspect-ratio: 3 / 4; }
.ph--banner { aspect-ratio: 21 / 7; }
.ph--dark { background: linear-gradient(135deg, #1c3247, #0d1b2a); }
.ph--dark > span { color: #95a6b8; }

/* 规格表 --------------------------------------------------------------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius-lg); }
table.spec { width: 100%; border-collapse: collapse; font-size: 15px; background: #fff; }
table.spec th, table.spec td { padding: 13px 18px; border-bottom: 1px solid var(--line-soft); text-align: left; vertical-align: top; }
table.spec thead th { background: var(--bg-2); font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--steel); }
table.spec tbody tr:last-child td { border-bottom: 0; }
table.spec td:first-child { font-weight: 600; color: var(--ink); width: 30%; }
table.spec tr:hover td { background: #fafcfd; }

/* 流程时间轴 ----------------------------------------------------------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; counter-reset: s; }
.step { position: relative; padding: 0 22px; }
.step-num {
  width: 38px; height: 38px; border-radius: 50%; background: var(--ink); color: #fff;
  display: grid; place-items: center; font-weight: 700; font-size: 15px; margin-bottom: 14px;
}
.step::after {
  content: ""; position: absolute; top: 19px; left: calc(50% + 26px); right: -6px; height: 1px; background: var(--line);
}
.step:last-child::after { display: none; }
.step h4 { margin-bottom: 6px; }
.step p { font-size: 14px; color: var(--steel); }

/* 案例 ----------------------------------------------------------------- */
.project-card { border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; background: #fff; }
.project-card .meta { display: flex; gap: 18px; flex-wrap: wrap; padding: 14px 20px; border-top: 1px solid var(--line-soft); background: var(--bg-2); font-size: 13px; color: var(--steel); }
.project-card .meta b { color: var(--ink); }
.project-body { padding: 18px 20px; }
.project-body h3 { font-size: 18px; margin-bottom: 6px; }
.tag {
  display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  background: var(--accent-soft); color: var(--accent-dark); padding: 4px 9px; border-radius: 3px; margin-bottom: 10px;
}

/* FAQ ----------------------------------------------------------------- */
details.faq { border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: 12px; background: #fff; }
details.faq summary {
  padding: 16px 20px; cursor: pointer; font-weight: 600; font-size: 16px; list-style: none;
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary::after { content: "+"; font-size: 22px; color: var(--accent); line-height: 1; font-weight: 400; }
details.faq[open] summary::after { content: "\2212"; }
details.faq[open] summary { border-bottom: 1px solid var(--line-soft); }
.faq-a { padding: 16px 20px; color: var(--steel); font-size: 15px; }
.faq-a p:last-child { margin-bottom: 0; }

/* 表单 ---------------------------------------------------------------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 13px; font-weight: 600; color: var(--ink-soft); }
.field label .req { color: var(--accent); }
.field input, .field select, .field textarea {
  font-family: var(--sans); font-size: 15px; padding: 11px 13px; border: 1px solid var(--line);
  border-radius: var(--radius); background: #fff; color: var(--ink); width: 100%;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--ink); box-shadow: 0 0 0 3px rgba(13,27,42,.08);
}
.field textarea { min-height: 120px; resize: vertical; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.dropzone {
  border: 2px dashed var(--line); border-radius: var(--radius); padding: 26px; text-align: center;
  background: var(--bg-2); cursor: pointer; transition: .15s;
}
.dropzone:hover, .dropzone.drag { border-color: var(--accent); background: var(--accent-soft); }
.dropzone input { display: none; }
.dropzone .dz-title { font-weight: 600; color: var(--ink-soft); }
.dropzone .dz-hint { font-size: 13px; color: var(--steel); margin-top: 4px; }
.file-list { margin-top: 12px; display: grid; gap: 6px; font-size: 13px; }
.file-list div { display: flex; justify-content: space-between; gap: 12px; background: var(--bg-2); padding: 7px 12px; border-radius: 4px; }
.form-note { font-size: 13px; color: var(--steel); margin-top: 14px; }
.alert { padding: 14px 18px; border-radius: var(--radius); font-size: 15px; margin-bottom: 18px; }
.alert-ok { background: #eaf6ef; border: 1px solid #b9e0c8; color: var(--ok); }
.alert-err { background: var(--accent-soft); border: 1px solid #f3c6b8; color: var(--accent-dark); }

/* 联系信息卡 ----------------------------------------------------------- */
.contact-box { background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 28px; }
.contact-box .row { display: flex; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.contact-box .row:last-child { border-bottom: 0; }
.contact-box .k { font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--steel); font-weight: 700; min-width: 92px; }
.contact-box .v { font-weight: 600; }

/* 悬浮按钮 ------------------------------------------------------------- */
.float-bar { position: fixed; right: 20px; bottom: 22px; z-index: 80; display: grid; gap: 10px; }
.float-btn {
  width: 52px; height: 52px; border-radius: 50%; display: grid; place-items: center;
  box-shadow: 0 4px 14px rgba(13,27,42,.22); color: #fff; border: 0; cursor: pointer;
}
.float-btn.wa { background: #1fa855; }
.float-btn.mail { background: var(--ink); }
.float-btn.top { background: #fff; color: var(--ink); border: 1px solid var(--line); }

/* 页脚 ---------------------------------------------------------------- */
.footer { background: var(--ink); color: #b3c1d0; padding: 56px 0 26px; font-size: 14px; }
.footer h4 { color: #fff; font-size: 14px; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 16px; }
.footer a { color: #cfdae6; }
.footer a:hover { color: #fff; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.3fr; gap: 36px; }
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { margin-bottom: 8px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); margin-top: 40px; padding-top: 20px; display: flex; gap: 18px; flex-wrap: wrap; font-size: 13px; color: #8b9cae; }
.footer-bottom .spacer { margin-left: auto; }

/* 面包屑 -------------------------------------------------------------- */
.crumbs { font-size: 13px; color: var(--steel); padding: 16px 0 0; }
.crumbs a { color: var(--steel); }
.crumbs span { margin: 0 6px; color: var(--steel-lt); }

/* 小条带 / CTA -------------------------------------------------------- */
.cta-band { background: linear-gradient(120deg, var(--ink) 0%, var(--ink-2) 60%, #23405d 100%); color: #fff; padding: 52px 0; }
.cta-band .wrap { display: flex; align-items: center; justify-content: space-between; gap: 28px; flex-wrap: wrap; }
.cta-band h2 { margin: 0 0 6px; }
.cta-band p { margin: 0; color: #c3d0de; }
.check-list { list-style: none; padding: 0; margin: 0 0 8px; }
.check-list li { position: relative; padding-left: 26px; margin-bottom: 10px; font-size: 15px; color: var(--steel); }
.check-list li::before {
  content: ""; position: absolute; left: 0; top: 8px; width: 12px; height: 7px;
  border-left: 2px solid var(--accent); border-bottom: 2px solid var(--accent); transform: rotate(-45deg);
}
.kv-list { display: grid; gap: 0; margin: 0; }
.kv-list div { display: flex; justify-content: space-between; gap: 16px; padding: 11px 0; border-bottom: 1px solid var(--line-soft); font-size: 15px; }
.kv-list div span:first-child { color: var(--steel); }
.kv-list div span:last-child { font-weight: 600; text-align: right; }

/* 后台管理 ------------------------------------------------------------ */
.admin-wrap { max-width: 1180px; margin: 0 auto; padding: 24px; }
.admin-head { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; margin-bottom: 22px; }
.login-box { max-width: 380px; margin: 12vh auto; padding: 32px; border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow); }
.card-stats { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; margin-bottom: 22px; }
.card-stat { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
.card-stat .n { font-size: 26px; font-weight: 800; }
.card-stat .l { font-size: 12px; color: var(--steel); text-transform: uppercase; letter-spacing: .08em; }
table.admin { width: 100%; border-collapse: collapse; font-size: 14px; background: #fff; }
table.admin th, table.admin td { padding: 12px 14px; border-bottom: 1px solid var(--line-soft); text-align: left; vertical-align: middle; }
table.admin thead th { background: var(--bg-2); font-size: 12px; text-transform: uppercase; letter-spacing: .07em; color: var(--steel); }
.badge { display: inline-block; font-size: 11px; font-weight: 700; padding: 3px 8px; border-radius: 3px; text-transform: uppercase; letter-spacing: .05em; }
.badge-new { background: var(--accent-soft); color: var(--accent-dark); }
.badge-contacted { background: #e6f0fa; color: #1d5b96; }
.badge-quoted { background: #fdf3d6; color: #8a6a12; }
.badge-won { background: #e6f6ec; color: #1d7a4c; }
.badge-lost { background: var(--bg-3); color: var(--steel); }
.detail-box { background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; margin-top: 14px; }
.detail-box dl { display: grid; grid-template-columns: 150px 1fr; gap: 8px 16px; margin: 0; }
.detail-box dt { color: var(--steel); font-size: 13px; }
.detail-box dd { margin: 0; font-weight: 600; font-size: 14px; }
.btn-sm { padding: 6px 12px; font-size: 13px; border-radius: 4px; border: 1px solid var(--line); background: #fff; cursor: pointer; font-family: var(--sans); }
.btn-sm:hover { border-color: var(--ink); }
.btn-sm.danger { color: var(--accent-dark); border-color: #f0c5b7; }

/* 响应式 -------------------------------------------------------------- */
@media (max-width: 1080px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stats { grid-template-columns: repeat(3, 1fr); gap: 12px; }
  .stat { border-right: 0; border-bottom: 1px solid rgba(255,255,255,.1); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .card-stats { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 900px) {
  .hero-grid, .split { grid-template-columns: 1fr; gap: 36px; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; gap: 22px; }
  .step::after { display: none; }
  .section { padding: 52px 0; }
  .nav-links {
    display: none; position: absolute; top: 68px; left: 0; right: 0; background: #fff;
    border-bottom: 1px solid var(--line); flex-direction: column; padding: 12px; gap: 2px; box-shadow: var(--shadow);
  }
  .nav-links.open { display: flex; }
  .nav-links > a { padding: 11px 12px; }
  .burger { display: block; }
  .nav-cta, .lang-switch { margin-left: 0; }
  .topbar { display: none; }
  .detail-box dl { grid-template-columns: 1fr; gap: 2px 0; }
  .detail-box dd { margin-bottom: 10px; }
}
@media (max-width: 620px) {
  .grid-4 { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .card-stats { grid-template-columns: repeat(2, 1fr); }
  .float-bar { right: 12px; bottom: 14px; }
  .float-btn { width: 46px; height: 46px; }
  .wrap { padding: 0 18px; }
}

/* ---- 实拍图库与产品卡 ---- */
.gallery { display:grid; grid-template-columns:repeat(3,1fr); gap:14px; margin-top:8px; }
.gallery-img { width:100%; aspect-ratio:4/3; object-fit:cover; border-radius:8px; background:#e8edf2; display:block; transition:transform .25s ease, box-shadow .25s ease; }
.gallery-img:hover { transform:scale(1.02); box-shadow:0 8px 24px rgba(15,35,60,.16); }
.hero-product { width:100%; aspect-ratio:4/3; object-fit:cover; border-radius:10px; background:#e8edf2; }
.card-img { overflow:hidden; border-radius:8px 8px 0 0; }
.card-img img { width:100%; aspect-ratio:4/3; object-fit:cover; display:block; background:#e8edf2; transition:transform .3s ease; }
.card--link:hover .card-img img { transform:scale(1.04); }
.card--link { text-decoration:none; color:inherit; display:block; }
.finish-strip { display:flex; flex-wrap:wrap; gap:10px; justify-content:center; margin-top:18px; }
.chip { padding:8px 18px; border:1px solid #d5dde5; border-radius:999px; font-size:14px; background:#fff; color:#2a3948; }
.section-foot { text-align:center; margin-top:18px; font-size:15px; }
@media (max-width: 900px) {
  .gallery { grid-template-columns:repeat(2,1fr); }
}

/* ---- LOGO ---- */
.logo-img { height:42px; width:auto; display:block; }
.footer .logo-img { height:48px; }

/* ---- 证书文档图 ---- */
.gallery--certs { grid-template-columns:repeat(4,1fr); }
.cert-img { aspect-ratio:3/4; object-fit:contain; background:#f5f7fa; border:1px solid #e3e9ef; padding:6px; }
@media (max-width: 900px) { .gallery--certs { grid-template-columns:repeat(2,1fr); } }