/* ============================================================
   HAAMTOUR N TRADING 企业官网 — 全站样式
   风格：墨黑 + 暖金 / 轻奢极简
   ============================================================ */

:root {
  /* 墨黑体系 */
  --ink-900: #0c0d10;
  --ink-800: #16171b;
  --ink-700: #23252b;
  --ink-100: #e9e7e2;
  --ivory: #f7f6f3;
  --ivory-deep: #f1efe9;

  /* 暖金体系 */
  --gold: #c9a961;
  --gold-deep: #a8843d;
  --gold-soft: rgba(201, 169, 97, 0.14);

  /* 文本与线条 */
  --text: #14151a;
  --text-soft: #6e7078;
  --line: #e7e4dd;
  --line-strong: #d8d4cb;
  --white: #ffffff;

  --radius: 6px;
  --shadow: 0 2px 10px rgba(12, 13, 16, 0.04);
  --shadow-lg: 0 20px 50px rgba(12, 13, 16, 0.12);

  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Segoe UI",
    "Helvetica Neue", Arial, sans-serif;
  --font-serif: "Songti SC", "SimSun", "Noto Serif SC", Georgia, serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--white);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; }

.container { width: min(1180px, 92%); margin: 0 auto; }

/* ---------------- 顶部导航 ---------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.brand { display: flex; align-items: center; gap: 13px; }
.brand-mark {
  width: 42px; height: 42px; flex: none;
  border-radius: 4px;
  background: #ffffff;
  display: flex; align-items: center; justify-content: center;
  color: var(--gold);
  position: relative;
  overflow: hidden;
}
.brand-mark img { width: 100%; height: 100%; object-fit: contain; display: block; }
.brand-mark::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid rgba(201, 169, 97, 0.35);
  border-radius: 4px;
}
.brand-name {
  font-family: Georgia, "Times New Roman", var(--font-serif);
  font-size: 18px;
  letter-spacing: 0.1em;
  color: var(--ink-900);
  font-weight: 700;
  white-space: nowrap;
}
.brand-sub {
  display: block;
  font-size: 10px;
  color: var(--text-soft);
  letter-spacing: 0.34em;
  font-weight: 400;
  margin-top: -2px;
}

.main-nav { display: flex; align-items: center; gap: 2px; }
.main-nav a {
  padding: 9px 18px;
  font-size: 14.5px;
  color: var(--text-soft);
  letter-spacing: 0.04em;
  transition: color 0.2s;
  position: relative;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 18px; right: 18px; bottom: 2px;
  height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.28s ease;
}
.main-nav a:hover { color: var(--ink-900); }
.main-nav a:hover::after { transform: scaleX(1); }
.main-nav a.active { color: var(--ink-900); font-weight: 600; }
.main-nav a.active::after { transform: scaleX(1); }

/* 登录区 */
.nav-auth { display: flex; align-items: center; gap: 12px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 24px;
  border-radius: 3px;
  border: none;
  font-size: 14.5px;
  letter-spacing: 0.06em;
  transition: all 0.24s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--ink-900);
  color: #fff;
}
.btn-primary:hover { background: var(--ink-700); }
.btn-gold {
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-deep) 100%);
  color: #16171b;
  font-weight: 600;
}
.btn-gold:hover { filter: brightness(1.07); }
.btn-outline {
  background: transparent;
  border: 1px solid var(--line-strong);
  color: var(--text);
}
.btn-outline:hover { border-color: var(--ink-900); color: var(--ink-900); }
.btn-sm { padding: 8px 16px; font-size: 13.5px; }
.btn-block { width: 100%; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; filter: none !important; }

.user-chip { display: flex; align-items: center; gap: 10px; position: relative; }
.user-chip .avatar {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--ink-900);
  border: 1px solid var(--gold);
  color: var(--gold);
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 600;
}
.user-menu { position: relative; }
.user-menu .menu-panel {
  position: absolute;
  right: 0; top: calc(100% + 12px);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 4px;
  box-shadow: var(--shadow-lg);
  min-width: 168px;
  padding: 6px;
  display: none;
}
.user-menu.open .menu-panel { display: block; }
.user-menu .menu-panel a,
.user-menu .menu-panel button {
  display: block;
  width: 100%;
  text-align: left;
  padding: 10px 14px;
  border: none;
  background: none;
  font-size: 13.5px;
  color: var(--text);
}
.user-menu .menu-panel a:hover,
.user-menu .menu-panel button:hover { background: var(--ivory); }

.nav-toggle { display: none; background: none; border: none; padding: 8px; }
.nav-toggle svg { width: 26px; height: 26px; stroke: var(--ink-900); }

/* ---------------- Hero ---------------- */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(900px 460px at 88% -12%, rgba(201, 169, 97, 0.18), transparent 62%),
    radial-gradient(700px 500px at 0% 108%, rgba(201, 169, 97, 0.08), transparent 60%),
    linear-gradient(155deg, #0a0b0e 0%, #131418 52%, #1b1c21 100%);
  color: #fff;
  padding: 138px 0 152px;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.028) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse at 60% 40%, black 20%, transparent 72%);
}
.hero::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(201, 169, 97, 0.55), transparent);
}
.hero-inner { position: relative; z-index: 1; max-width: 820px; }
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-size: 11.5px;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 26px;
}
.hero-eyebrow::before { content: ""; width: 44px; height: 1px; background: var(--gold); }
.hero-ko {
  font-size: 14px;
  letter-spacing: 0.18em;
  color: rgba(255, 255, 255, 0.62);
  margin-bottom: 18px;
  font-weight: 300;
}
.hero-ko::after {
  content: "";
  display: block;
  width: 30px; height: 1px;
  background: rgba(201, 169, 97, 0.6);
  margin-top: 14px;
}
.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(34px, 4.8vw, 54px);
  line-height: 1.32;
  font-weight: 700;
  letter-spacing: 0.02em;
  margin-bottom: 24px;
}
.hero h1 em {
  font-style: normal;
  color: var(--gold);
  position: relative;
}
.hero p {
  font-size: 16.5px;
  color: rgba(255, 255, 255, 0.7);
  max-width: 620px;
  margin-bottom: 40px;
  font-weight: 300;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats {
  position: relative;
  z-index: 1;
  margin-top: 82px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  border-top: 1px solid rgba(201, 169, 97, 0.22);
  padding-top: 38px;
}
.hero-stat .num {
  font-family: Georgia, serif;
  font-size: 30px;
  color: var(--gold);
  letter-spacing: 0.04em;
}
.hero-stat .label {
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.55);
  margin-top: 6px;
  letter-spacing: 0.06em;
}

/* ---------------- 通用 Section ---------------- */
.section { padding: 104px 0; }
.section.alt { background: var(--ivory); }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 64px; }
.section-head .eyebrow {
  color: var(--gold-deep);
  font-size: 11.5px;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  margin-bottom: 18px;
}
.section-head h2 {
  font-family: var(--font-serif);
  font-size: clamp(26px, 3.2vw, 36px);
  color: var(--ink-900);
  line-height: 1.35;
  letter-spacing: 0.03em;
  margin-bottom: 16px;
}
.section-head h2::after {
  content: "";
  display: block;
  width: 48px; height: 1px;
  background: var(--gold);
  margin: 20px auto 0;
}
.section-head p { color: var(--text-soft); font-size: 15.5px; font-weight: 300; }

/* ---------------- 服务卡片 ---------------- */
.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}
.service-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 34px 28px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0;
  width: 100%; height: 2px;
  background: linear-gradient(90deg, var(--gold), rgba(201, 169, 97, 0));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}
.service-card:hover {
  border-color: var(--line-strong);
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}
.service-card:hover::before { transform: scaleX(1); }
.service-icon {
  width: 50px; height: 50px;
  border-radius: 3px;
  background: var(--ivory);
  border: 1px solid var(--line);
  color: var(--ink-800);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 22px;
  transition: all 0.3s ease;
}
.service-card:hover .service-icon {
  background: var(--ink-900);
  border-color: var(--ink-900);
  color: var(--gold);
}
.service-icon svg { width: 25px; height: 25px; }
.service-card h3 {
  font-size: 17.5px;
  color: var(--ink-900);
  margin-bottom: 10px;
  letter-spacing: 0.04em;
}
.service-card p { font-size: 13.8px; color: var(--text-soft); line-height: 1.85; }
.service-card .en {
  display: block;
  margin-top: 16px;
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--gold-deep);
}

/* ---------------- 特性 ---------------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 40px 34px;
}
.feature h3 { font-size: 16.5px; color: var(--ink-900); margin: 18px 0 8px; letter-spacing: 0.04em; }
.feature p { font-size: 13.8px; color: var(--text-soft); }
.feature .f-icon {
  width: 46px; height: 46px;
  border-radius: 50%;
  background: #fff;
  border: 1px solid var(--line-strong);
  color: var(--gold-deep);
  display: flex; align-items: center; justify-content: center;
}
.feature .f-icon svg { width: 21px; height: 21px; }

/* ---------------- 内页头部 ---------------- */
.page-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(760px 380px at 92% -30%, rgba(201, 169, 97, 0.2), transparent 62%),
    linear-gradient(150deg, #0a0b0e, #16171b 60%, #1e1f24);
  color: #fff;
  padding: 90px 0;
}
.page-hero::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(201, 169, 97, 0.5), transparent);
}
.page-hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(28px, 3.8vw, 40px);
  letter-spacing: 0.06em;
  margin-bottom: 14px;
}
.page-hero .crumbs {
  font-size: 11.5px;
  color: rgba(255, 255, 255, 0.45);
  letter-spacing: 0.32em;
  text-transform: uppercase;
}
.page-hero p.lead { color: rgba(255, 255, 255, 0.66); margin-top: 18px; max-width: 640px; font-weight: 300; }

/* ---------------- 关于页 ---------------- */
.prose { max-width: 780px; }
.prose p { margin-bottom: 18px; color: var(--text-soft); font-size: 15.5px; font-weight: 300; line-height: 1.95; }
.prose p strong { color: var(--ink-900); font-weight: 600; }
.prose h2 {
  font-family: var(--font-serif);
  color: var(--ink-900);
  font-size: 24px;
  letter-spacing: 0.04em;
  margin: 44px 0 18px;
  padding-left: 18px;
  border-left: 2px solid var(--gold);
}

.info-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.info-card .info-head {
  background: var(--ink-900);
  color: #fff;
  padding: 20px 28px;
  font-family: Georgia, serif;
  font-size: 16px;
  letter-spacing: 0.14em;
  border-bottom: 1px solid var(--gold);
}
.info-table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.info-table th, .info-table td { text-align: left; padding: 15px 28px; border-top: 1px solid var(--line); vertical-align: top; }
.info-table tr:first-child th, .info-table tr:first-child td { border-top: none; }
.info-table th { color: var(--text-soft); font-weight: 400; width: 150px; letter-spacing: 0.04em; }
.info-table td { color: var(--ink-900); }

.timeline { border-left: 1px solid var(--line-strong); padding-left: 30px; margin-left: 6px; }
.timeline-item { position: relative; padding-bottom: 38px; }
.timeline-item::before {
  content: "";
  position: absolute;
  left: -35px; top: 8px;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--gold);
}
.timeline-item .year {
  font-family: Georgia, serif;
  color: var(--gold-deep);
  font-size: 17px;
  letter-spacing: 0.1em;
  margin-bottom: 6px;
}
.timeline-item h4 { color: var(--ink-900); font-size: 15.5px; margin-bottom: 5px; letter-spacing: 0.04em; }
.timeline-item p { font-size: 13.8px; color: var(--text-soft); }

/* ---------------- CTA 横幅 ---------------- */
.cta-banner {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #0a0b0e, #191a1f 65%, #1f2026);
  border-radius: var(--radius);
  color: #fff;
  padding: 64px 58px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
}
.cta-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(620px 300px at 12% 10%, rgba(201, 169, 97, 0.2), transparent 62%);
}
.cta-banner > * { position: relative; z-index: 1; }
.cta-banner h2 { font-family: var(--font-serif); font-size: 27px; letter-spacing: 0.05em; margin-bottom: 10px; }
.cta-banner p { color: rgba(255, 255, 255, 0.62); font-size: 14.5px; font-weight: 300; }

/* ---------------- 表单 ---------------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-field { display: flex; flex-direction: column; gap: 8px; }
.form-field.full { grid-column: 1 / -1; }
.form-field label { font-size: 13.5px; font-weight: 600; color: var(--ink-900); letter-spacing: 0.04em; }
.form-field label .req { color: var(--gold-deep); margin-left: 3px; }
.form-field input,
.form-field select,
.form-field textarea {
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  padding: 13px 15px;
  font-size: 14.5px;
  color: var(--text);
  background: #fff;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-field textarea { resize: vertical; min-height: 132px; }
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: var(--gold-deep);
  box-shadow: 0 0 0 3px var(--gold-soft);
}
.form-field .hint { font-size: 12px; color: var(--text-soft); }
.form-field .hint a { color: var(--gold-deep); }
.field-error { font-size: 12px; color: #b4453a; min-height: 16px; }

.alert { border-radius: 3px; padding: 14px 18px; font-size: 13.8px; margin-bottom: 18px; display: none; }
.alert.show { display: block; }
.alert-success { background: #f3f6f1; color: #3d5a3a; border: 1px solid #dfe7d9; }
.alert-error { background: #fbf3f2; color: #8f3a30; border: 1px solid #f0dcd8; }

/* ---------------- 会员中心 ---------------- */
.auth-shell { max-width: 440px; margin: 0 auto; }
.auth-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 44px 38px;
  position: relative;
}
.auth-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}
.auth-card h2 {
  font-family: var(--font-serif);
  color: var(--ink-900);
  text-align: center;
  font-size: 23px;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}
.auth-card .sub { text-align: center; font-size: 13.5px; color: var(--text-soft); margin-bottom: 30px; }
.otp-row { display: flex; gap: 10px; }
.otp-row input { flex: 1; }
.divider {
  display: flex; align-items: center; gap: 14px;
  color: var(--text-soft); font-size: 11.5px;
  letter-spacing: 0.2em;
  margin: 26px 0;
}
.divider::before, .divider::after { content: ""; flex: 1; height: 1px; background: var(--line); }

.member-wrap { display: none; }
.member-head {
  display: flex; align-items: center; gap: 20px;
  background: linear-gradient(135deg, #0a0b0e, #1c1d22);
  border-radius: var(--radius);
  padding: 34px 36px;
  color: #fff;
  margin-bottom: 36px;
  position: relative;
  overflow: hidden;
}
.member-head::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(520px 260px at 88% -20%, rgba(201, 169, 97, 0.22), transparent 62%);
}
.member-head .avatar {
  width: 58px; height: 58px; border-radius: 50%;
  background: rgba(201, 169, 97, 0.12);
  border: 1px solid var(--gold);
  color: var(--gold);
  display: flex; align-items: center; justify-content: center;
  font-family: Georgia, serif;
  font-size: 22px;
  flex: none;
  position: relative;
  z-index: 1;
}
.member-head > div { position: relative; z-index: 1; }
.member-head h2 { font-family: var(--font-serif); font-size: 21px; letter-spacing: 0.05em; }
.member-head p { font-size: 12.5px; color: rgba(255, 255, 255, 0.55); letter-spacing: 0.1em; }

.panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 28px;
  overflow: hidden;
}
.panel-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 28px;
  border-bottom: 1px solid var(--line);
  background: var(--ivory);
}
.panel-head h3 {
  font-size: 16px;
  color: var(--ink-900);
  letter-spacing: 0.06em;
  padding-left: 14px;
  border-left: 2px solid var(--gold);
}
.panel-body { padding: 26px 28px; }

.list-empty { text-align: center; color: var(--text-soft); font-size: 13.5px; padding: 32px 0; }
.list-empty a { color: var(--gold-deep); }
.inquiry-item { border: 1px solid var(--line); border-left: 2px solid var(--gold); border-radius: 3px; padding: 18px 22px; margin-bottom: 14px; }
.inquiry-item .meta { display: flex; gap: 14px; flex-wrap: wrap; font-size: 12.5px; color: var(--text-soft); margin-bottom: 9px; align-items: center; }
.inquiry-item .tag {
  background: var(--ivory-deep);
  color: var(--ink-800);
  border: 1px solid var(--line);
  padding: 2px 11px;
  border-radius: 20px;
  font-size: 11.5px;
  letter-spacing: 0.05em;
}
.inquiry-item .msg { font-size: 14px; color: var(--text); }

.file-item {
  display: flex; align-items: center; justify-content: space-between; gap: 14px;
  padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 14px;
}
.file-item:last-child { border-bottom: none; }
.file-item .f-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--ink-900); }
.file-item .f-size { color: var(--text-soft); font-size: 12px; flex: none; }
.file-item a { color: var(--gold-deep); font-size: 13px; flex: none; }

/* ---------------- 联系页 ---------------- */
.contact-layout { display: grid; grid-template-columns: 1.5fr 1fr; gap: 36px; align-items: start; }
.contact-side { display: flex; flex-direction: column; gap: 16px; }
.contact-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 28px;
  display: flex;
  gap: 18px;
  transition: border-color 0.25s;
}
.contact-item:hover { border-color: var(--line-strong); }
.contact-item .c-icon {
  width: 44px; height: 44px; flex: none;
  border-radius: 3px;
  background: var(--ink-900);
  color: var(--gold);
  display: flex; align-items: center; justify-content: center;
}
.contact-item h4 { font-size: 14.5px; color: var(--ink-900); margin-bottom: 6px; letter-spacing: 0.05em; }
.contact-item p { font-size: 13.8px; color: var(--text-soft); }
.contact-item a { color: var(--gold-deep); }

/* ---------------- 页脚 ---------------- */
.site-footer {
  background: var(--ink-900);
  color: rgba(255, 255, 255, 0.5);
  margin-top: 104px;
  padding: 68px 0 30px;
  font-size: 13.5px;
  position: relative;
}
.site-footer::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(201, 169, 97, 0.4), transparent);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 42px;
  padding-bottom: 46px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.site-footer h4 {
  color: #fff;
  font-size: 13.5px;
  letter-spacing: 0.16em;
  margin-bottom: 18px;
  font-weight: 500;
}
.site-footer a:hover { color: var(--gold); }
.footer-brand .brand-name { color: #fff; }
.footer-brand p { margin-top: 18px; line-height: 2; font-weight: 300; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 11px; font-weight: 300; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 26px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.32);
  letter-spacing: 0.06em;
}

/* ---------------- 响应式 ---------------- */
@media (max-width: 920px) {
  .main-nav {
    position: absolute;
    top: 76px; left: 0; right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 12px 5%;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-lg);
    display: none;
  }
  .main-nav.open { display: flex; }
  .nav-toggle { display: block; }
  .hero { padding: 88px 0 104px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 28px; }
  .contact-layout { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .cta-banner { padding: 42px 32px; }
}
@media (max-width: 560px) {
  .footer-grid { grid-template-columns: 1fr; }
  .brand-sub { display: none; }
}