/* =============================================
   AARZOI LOGISTICS - Main Stylesheet
   Navy #0b1e3d | Red #e63e2a | Mid #132d5e
============================================= */

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

:root {
  --navy:   #0b1e3d;
  --navy2:  #132d5e;
  --amber:  #e63e2a;
  --amber2: #f25c45;
  --light:  #f4f6f9;
  --white:  #ffffff;
  --text:   #2d3748;
  --muted:  #64748b;
  --border: #e2e8f0;
  --r:      10px;
  --sh:     0 4px 28px rgba(11,30,61,.10);
  --t:      .28s ease;
}

html { scroll-behavior: smooth; }
body { font-family: 'Inter', sans-serif; color: var(--text); line-height: 1.7; overflow-x: hidden; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; padding: 0; }
address { font-style: normal; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 28px; }
.section { padding: 88px 0; }

/* ---- TAGS ---- */
.tag {
  display: inline-block;
  font-size: .75rem; font-weight: 700; letter-spacing: .14em;
  text-transform: uppercase; color: var(--amber);
  margin-bottom: 14px;
}
.tag-light { color: var(--amber2); }
.centered-tag { display: block; text-align: center; }

/* ---- BUTTONS ---- */
.btn-amber {
  display: inline-block;
  background: var(--amber); color: var(--navy);
  font-weight: 700; font-size: .93rem;
  padding: 14px 32px; border-radius: var(--r);
  border: 2px solid var(--amber);
  transition: background var(--t), transform var(--t);
  cursor: pointer;
}
.btn-amber:hover { background: var(--amber2); border-color: var(--amber2); transform: translateY(-2px); }

.btn-outline {
  display: inline-block;
  background: transparent; color: var(--white);
  font-weight: 600; font-size: .93rem;
  padding: 14px 32px; border-radius: var(--r);
  border: 2px solid rgba(255,255,255,.5);
  transition: border-color var(--t), background var(--t);
}
.btn-outline:hover { border-color: var(--white); background: rgba(255,255,255,.1); }

.btn-full { width: 100%; text-align: center; font-size: .98rem; padding: 15px; }

/* ---- HEADINGS shared ---- */
h2 {
  font-family: 'Barlow', sans-serif;
  font-weight: 900; font-size: clamp(1.8rem, 3vw, 2.5rem);
  line-height: 1.15; color: var(--navy); margin-bottom: 16px;
}

/* =============================================
   HEADER
============================================= */
.header { position: sticky; top: 0; z-index: 999; }

/* top info bar */
.header-top {
  background: var(--navy2);
  padding: 7px 0;
  font-size: .8rem;
}
.header-top-inner {
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 6px;
}
.hinfo { color: rgba(255,255,255,.7); display: inline-flex; align-items: center; gap: 6px; transition: color var(--t); }
.hinfo svg { width: 13px; height: 13px; fill: var(--amber); flex-shrink: 0; }
a.hinfo:hover { color: var(--amber2); }
.hinfo-group { display: flex; gap: 20px; }

/* main nav bar */
.header-main {
  background: var(--white);
  border-bottom: 2px solid var(--border);
  box-shadow: 0 2px 16px rgba(0,0,0,.06);
}
.header-main-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 68px; gap: 20px;
}

.logo { display: flex; align-items: center; gap: 12px; }
.logo-icon svg { width: 38px; height: 38px; }
.logo-name {
  display: block;
  font-family: 'Barlow', sans-serif; font-weight: 900;
  font-size: 1.05rem; letter-spacing: .04em;
  color: var(--navy); line-height: 1.1;
}
.logo-sub { display: block; font-size: .68rem; color: var(--muted); letter-spacing: .06em; margin-top: 1px; }
.logo-light .logo-name { color: var(--white); }
.logo-light .logo-sub { color: rgba(255,255,255,.45); }

.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  font-size: .88rem; font-weight: 500; color: var(--text);
  padding: 8px 14px; border-radius: 7px;
  transition: color var(--t), background var(--t);
}
.nav a:hover { color: var(--navy); background: var(--light); }
.nav-cta {
  background: var(--amber) !important; color: var(--navy) !important;
  font-weight: 700 !important; border-radius: 7px;
  border: 2px solid var(--amber);
  margin-left: 6px;
}
.nav-cta:hover { background: var(--amber2) !important; border-color: var(--amber2) !important; }

.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--navy); border-radius: 2px; transition: transform var(--t), opacity var(--t); }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =============================================
   HERO - 全宽背景 + 透明文字面板
============================================= */
.hero {
  position: relative;
  min-height: 88vh;
  max-height: 820px;
  overflow: hidden;
  display: flex; align-items: stretch;
}

/* LEFT content panel - 透明，浮于图片之上 */
.hero-panel {
  position: relative; z-index: 3;
  width: 55%;
  max-width: 720px;       /* 大屏限制最大宽度，避免文字区过宽 */
  flex-shrink: 0;
  display: flex; align-items: center;
  padding: 60px 0;
  /* 左侧渐变遮罩保证文字可读性 */
  background: linear-gradient(
    100deg,
    rgba(11,30,61,0.90) 0%,
    rgba(11,30,61,0.78) 60%,
    rgba(11,30,61,0.0) 100%
  );
}
.hero-content {
  /* 用 clamp 替代动态 calc，避免大屏左边距失控 */
  padding: 0 72px 0 clamp(28px, 6vw, 80px);
  position: relative; z-index: 3;
  width: 100%;
  max-width: 560px;
}

.hero-label {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .75rem; font-weight: 700; letter-spacing: .14em;
  text-transform: uppercase; color: var(--amber);
  margin-bottom: 18px;
}
.hero-label::before { content: ''; display: block; width: 28px; height: 2px; background: var(--amber); }

.hero-content h1 {
  font-family: 'Barlow', sans-serif;
  font-weight: 900;
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  line-height: 1.08;
  color: var(--white);
  margin-bottom: 20px;
}
.hero-content h1 em { display: block; color: var(--amber); font-style: normal; }

.hero-content p {
  font-size: 1rem; color: rgba(255,255,255,.72);
  max-width: 400px; margin-bottom: 32px;
}

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 40px; }

.hero-stats {
  display: flex; align-items: center; gap: 20px;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,.1);
}
.hs { display: flex; flex-direction: column; }
.hs strong { font-family: 'Barlow', sans-serif; font-weight: 900; font-size: 1.5rem; color: var(--amber); line-height: 1; }
.hs span { font-size: .73rem; color: rgba(255,255,255,.5); text-transform: uppercase; letter-spacing: .08em; margin-top: 3px; }
.hs-div { width: 1px; height: 32px; background: rgba(255,255,255,.15); }

/* 全宽背景滑块 */
.hero-slider {
  position: absolute; inset: 0; z-index: 1;
  overflow: hidden;
  background: var(--navy2);
}
.hslide {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  opacity: 0;
  transition: opacity .9s ease;
  /* 轻微放大避免 blur 边缘露白 */
  transform: scale(1.04);
  filter: blur(3px);
}
.hslide.active { opacity: 1; z-index: 1; }

/* 轻薄毛玻璃遮罩 */
.hero-slider::after {
  content: '';
  position: absolute; inset: 0; z-index: 2; pointer-events: none;
  backdrop-filter: blur(1px);
  -webkit-backdrop-filter: blur(1px);
  background: rgba(11,30,61,0.18);
}

/* 导航圆点和箭头显示在遮罩之上 */
.hslide-dots,
.hslide-arrows { z-index: 10; }

.hslide-dots {
  position: absolute; bottom: 24px; left: 50%; transform: translateX(-50%);
  z-index: 5; display: flex; gap: 8px;
}
.hdot {
  width: 8px; height: 8px; border-radius: 50%;
  background: rgba(255,255,255,.35); border: 1.5px solid rgba(255,255,255,.5);
  cursor: pointer; transition: background var(--t), transform var(--t);
}
.hdot.active { background: var(--amber); border-color: var(--amber); transform: scale(1.25); }

.hslide-arrows {
  position: absolute; bottom: 24px; right: 24px;
  z-index: 5; display: flex; gap: 8px;
}
.hslide-arrows button {
  width: 36px; height: 36px; border-radius: 50%;
  background: rgba(255,255,255,.15); border: 1.5px solid rgba(255,255,255,.3);
  color: var(--white); font-size: 1rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background var(--t), border-color var(--t);
  backdrop-filter: blur(4px);
}
.hslide-arrows button:hover { background: var(--amber); border-color: var(--amber); color: var(--navy); }

/* =============================================
   SERVICES
============================================= */
.split-header {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 40px; margin-bottom: 48px;
}
.split-header h2 { margin-bottom: 0; }
.split-desc {
  max-width: 340px; color: var(--muted); font-size: .95rem;
  flex-shrink: 0; padding-top: 8px; line-height: 1.65;
}

/* 2 featured cards */
.svc-featured {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 24px; margin-bottom: 24px;
}
.svc-feat-card {
  display: flex; gap: 24px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 14px; padding: 32px;
  transition: box-shadow var(--t), border-color var(--t), transform var(--t);
}
.svc-feat-card:hover { box-shadow: var(--sh); border-color: var(--amber); transform: translateY(-3px); }

.sfc-icon {
  width: 60px; height: 60px; flex-shrink: 0;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
}
.sfc-icon.air { background: rgba(14,165,233,.1); color: #0ea5e9; }
.sfc-icon.sea { background: rgba(99,102,241,.1); color: #6366f1; }
.sfc-icon svg { width: 32px; height: 32px; }

.sfc-body h3 { font-family: 'Barlow', sans-serif; font-weight: 800; font-size: 1.2rem; color: var(--navy); margin-bottom: 8px; }
.sfc-body p { font-size: .88rem; color: var(--muted); margin-bottom: 12px; }
.sfc-body ul { display: flex; flex-direction: column; gap: 4px; margin-bottom: 14px; }
.sfc-body li { font-size: .82rem; color: var(--text); display: flex; align-items: center; gap: 7px; }
.sfc-body li::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--amber); flex-shrink: 0; }

.link-arrow { font-size: .85rem; font-weight: 700; color: var(--amber); transition: color var(--t); }
.link-arrow:hover { color: var(--navy); }

/* 6 tile grid */
.svc-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.svc-tile {
  background: var(--light); border-radius: 12px; padding: 24px;
  border: 1px solid transparent;
  transition: border-color var(--t), background var(--t), transform var(--t);
  position: relative; overflow: hidden;
}
.svc-tile:hover { border-color: var(--amber); background: var(--white); box-shadow: var(--sh); transform: translateY(-2px); }
.svc-num {
  display: block;
  font-family: 'Barlow', sans-serif; font-weight: 900;
  font-size: 2.4rem; color: var(--navy); opacity: .06;
  line-height: 1; margin-bottom: 8px;
  transition: opacity var(--t);
}
.svc-tile:hover .svc-num { opacity: .15; }
.svc-tile h4 { font-family: 'Barlow', sans-serif; font-weight: 800; font-size: 1rem; color: var(--navy); margin-bottom: 6px; }
.svc-tile p { font-size: .85rem; color: var(--muted); line-height: 1.6; }

/* =============================================
   HOW IT WORKS
============================================= */
.howworks { background: var(--navy); }
.centered-header { text-align: center; margin-bottom: 56px; }
.centered-header h2 { color: var(--white); }

.steps {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 0; position: relative;
}
.step { padding: 0 28px; text-align: center; position: relative; }

.step-circle {
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--amber); color: var(--navy);
  font-family: 'Barlow', sans-serif; font-weight: 900; font-size: 1.1rem;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 20px; position: relative; z-index: 2;
  box-shadow: 0 0 0 6px rgba(230,62,42,.2);
}
.step-line {
  position: absolute; top: 28px; left: calc(50% + 28px);
  right: 0; height: 2px;
  background: rgba(255,255,255,.1);
}
.step-line.last { display: none; }

.step h4 { font-family: 'Barlow', sans-serif; font-weight: 800; font-size: 1rem; color: var(--white); margin-bottom: 10px; }
.step p { font-size: .84rem; color: rgba(255,255,255,.55); line-height: 1.65; }

/* =============================================
   ABOUT
============================================= */
.about-wrap {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 80px; align-items: center;
}
.about-img-col { position: relative; }
.about-img-frame {
  border-radius: 16px; overflow: hidden;
  box-shadow: var(--sh);
}
.about-img-frame img {
  width: 100%; aspect-ratio: 4/3; object-fit: cover;
  background: linear-gradient(135deg, var(--navy2), var(--navy));
  min-height: 280px;
}
.about-abn-card {
  position: absolute; bottom: -20px; right: -20px;
  background: var(--navy);
  border-radius: 12px; padding: 18px 24px;
  box-shadow: 0 8px 32px rgba(13,27,42,.25);
  border-left: 4px solid var(--amber);
}
.abn-label { font-size: .68rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: rgba(255,255,255,.45); margin-bottom: 4px; }
.abn-num { font-family: 'Barlow', sans-serif; font-weight: 900; font-size: 1.1rem; color: var(--amber); letter-spacing: .05em; }

.about-text-col h2 { margin-bottom: 12px; }
.about-lead { font-size: 1rem; color: var(--text); margin-bottom: 12px; line-height: 1.7; }
.about-text-col p { color: var(--muted); margin-bottom: 20px; }

.about-credentials { display: flex; flex-direction: column; gap: 10px; margin: 20px 0 28px; }
.cred { display: flex; align-items: center; gap: 12px; font-size: .9rem; }
.cred-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--amber); flex-shrink: 0; }

.about-stats-row {
  display: flex; gap: 0;
  border: 1px solid var(--border); border-radius: 12px; overflow: hidden;
}
.astat {
  flex: 1; padding: 18px 20px; text-align: center;
  border-right: 1px solid var(--border);
}
.astat:last-child { border-right: none; }
.astat strong { display: block; font-family: 'Barlow', sans-serif; font-weight: 900; font-size: 1.7rem; color: var(--navy); line-height: 1; }
.astat span { font-size: .75rem; color: var(--muted); text-transform: uppercase; letter-spacing: .07em; margin-top: 4px; display: block; }

/* =============================================
   WHY STRIP
============================================= */
.why-strip {
  background: var(--navy2);
  padding: 64px 0;
}
.why-list {
  display: grid; grid-template-columns: repeat(5, 1fr);
  gap: 0;
  margin-top: 32px;
}
.why-item {
  padding: 28px 24px;
  border-right: 1px solid rgba(255,255,255,.08);
  text-align: center;
  transition: background var(--t);
}
.why-item:last-child { border-right: none; }
.why-item:hover { background: rgba(255,255,255,.04); }
.why-icon {
  width: 48px; height: 48px;
  border-radius: 12px; background: rgba(230,62,42,.12);
  color: var(--amber); margin: 0 auto 14px;
  display: flex; align-items: center; justify-content: center;
  transition: background var(--t);
}
.why-item:hover .why-icon { background: var(--amber); color: var(--navy); }
.why-icon svg { width: 22px; height: 22px; }
.why-item h4 { font-family: 'Barlow', sans-serif; font-weight: 800; font-size: .95rem; color: var(--white); margin-bottom: 6px; }
.why-item p { font-size: .8rem; color: rgba(255,255,255,.5); line-height: 1.6; }

/* =============================================
   CONTACT
============================================= */
.contact-section { background: var(--light); }
.contact-header { text-align: center; margin-bottom: 48px; }
.contact-header h2 { margin-bottom: 8px; }
.contact-header p { color: var(--muted); }

.contact-body {
  display: grid; grid-template-columns: 300px 1fr;
  gap: 40px; align-items: start;
}

.cinfo-col { display: flex; flex-direction: column; gap: 14px; }
.cinfo-card {
  display: flex; align-items: flex-start; gap: 14px;
  background: var(--white); border-radius: 12px; padding: 18px 20px;
  border: 1px solid var(--border);
}
.cinfo-icon {
  width: 38px; height: 38px; flex-shrink: 0; border-radius: 8px;
  background: rgba(230,62,42,.1); color: var(--amber);
  display: flex; align-items: center; justify-content: center;
}
.cinfo-icon svg { width: 18px; height: 18px; }
.cinfo-card strong { display: block; font-size: .75rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--navy); margin-bottom: 3px; }
.cinfo-card span, .cinfo-card a { font-size: .86rem; color: var(--muted); line-height: 1.6; }
.cinfo-card a:hover { color: var(--amber); }

.cform {
  background: var(--white); border-radius: 16px; padding: 40px 36px;
  box-shadow: var(--sh); border: 1px solid var(--border);
}
.cform-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.fg { margin-bottom: 18px; }
.fg label { display: block; font-size: .8rem; font-weight: 600; color: var(--navy); margin-bottom: 6px; }
.fg input, .fg select, .fg textarea {
  width: 100%; padding: 11px 15px;
  border: 1.5px solid var(--border); border-radius: 8px;
  font-family: 'Inter', sans-serif; font-size: .88rem; color: var(--text);
  background: var(--white); outline: none;
  transition: border-color var(--t), box-shadow var(--t);
}
.fg input:focus, .fg select:focus, .fg textarea:focus {
  border-color: var(--amber);
  box-shadow: 0 0 0 3px rgba(230,62,42,.13);
}
.fg textarea { resize: vertical; min-height: 96px; }
.fg select { appearance: none; cursor: pointer; }
.form-note { text-align: center; font-size: .77rem; color: var(--muted); margin-top: 10px; }

/* 表单提交结果提示 */
.form-result {
  padding: 14px 18px;
  border-radius: 8px;
  font-size: .88rem;
  font-weight: 500;
  margin-bottom: 16px;
  line-height: 1.5;
}
.form-result--success {
  background: #f0fdf4;
  color: #15803d;
  border: 1px solid #bbf7d0;
}
.form-result--error {
  background: #fff1f2;
  color: #be123c;
  border: 1px solid #fecdd3;
}

/* 必填项校验错误高亮 */
.field-error {
  border-color: #e63e2a !important;
  box-shadow: 0 0 0 3px rgba(230,62,42,.13) !important;
}

/* =============================================
   FOOTER
============================================= */
.footer-cta { background: var(--amber); padding: 36px 0; }
.footer-cta-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; flex-wrap: wrap;
}
.footer-cta h3 { font-family: 'Barlow', sans-serif; font-weight: 900; font-size: 1.5rem; color: var(--navy); margin-bottom: 4px; }
.footer-cta p { color: rgba(13,27,42,.7); font-size: .9rem; }
.footer-cta .btn-amber { background: var(--navy); color: var(--white); border-color: var(--navy); white-space: nowrap; }
.footer-cta .btn-amber:hover { background: var(--navy2); border-color: var(--navy2); }

.footer-main { background: var(--navy); padding: 64px 0 48px; }
.footer-grid {
  display: grid; grid-template-columns: 1.8fr 1fr 1fr 1.3fr;
  gap: 40px;
}
.footer-brand { padding-right: 20px; }
.footer-about { font-size: .85rem; color: rgba(255,255,255,.45); margin-top: 16px; max-width: 260px; line-height: 1.7; }
.footer-abn { font-size: .75rem; color: rgba(255,255,255,.25); margin-top: 10px; letter-spacing: .05em; }

.footer-col h5 { font-size: .72rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: rgba(255,255,255,.35); margin-bottom: 16px; }
.footer-col a, .footer-col p {
  display: block; font-size: .85rem; color: rgba(255,255,255,.55);
  margin-bottom: 9px; transition: color var(--t);
}
.footer-col a:hover { color: var(--amber); }
.footer-col p { cursor: default; line-height: 1.7; }

.footer-bottom {
  background: rgba(0,0,0,.25);
  padding: 16px 0;
}
.footer-bottom-inner {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 6px;
}
.footer-bottom p { font-size: .75rem; color: rgba(255,255,255,.25); }

/* =============================================
   RESPONSIVE
============================================= */
@media (max-width: 1100px) {
  .hero-panel { width: 60%; }
  .hero-content { padding: 0 40px 0 32px; max-width: 520px; }
  .why-list { grid-template-columns: repeat(3, 1fr); gap: 0; }
  .why-item:nth-child(3) { border-right: none; }
  .why-item:nth-child(4), .why-item:nth-child(5) { border-top: 1px solid rgba(255,255,255,.08); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 900px) {
  /* Hero 竖排：文字在上，图片在下 */
  .hero { flex-direction: column; min-height: auto; max-height: none; }
  .hero-panel {
    width: 100%; max-width: none;
    background: linear-gradient(180deg, rgba(11,30,61,0.92) 0%, rgba(11,30,61,0.75) 100%);
    padding: 56px 0 48px;
  }
  .hero-content { padding: 0 28px; max-width: 620px; }
  .hero-slider { width: 100%; height: 320px; position: relative; flex-shrink: 0; }
  .svc-featured { grid-template-columns: 1fr; }
  .svc-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr 1fr; gap: 32px; }
  .step-line { display: none; }
  .about-wrap { grid-template-columns: 1fr; gap: 60px; }
  .about-img-col { max-width: 480px; }
  .contact-body { grid-template-columns: 1fr; }
  .cinfo-col { display: grid; grid-template-columns: 1fr 1fr; }
  .split-header { flex-direction: column; gap: 12px; }
  .split-desc { max-width: none; }
}

@media (max-width: 640px) {
  .section { padding: 64px 0; }
  .hinfo-group { flex-direction: column; gap: 4px; }
  .nav-toggle { display: flex; }
  .nav {
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--white); flex-direction: column; align-items: stretch;
    padding: 12px 20px 20px;
    border-bottom: 2px solid var(--border);
    box-shadow: 0 8px 24px rgba(0,0,0,.1);
    clip-path: inset(0 0 100% 0);
    transition: clip-path .32s ease, opacity .32s ease;
    opacity: 0; gap: 2px;
  }
  .nav.open { clip-path: inset(0); opacity: 1; }
  .nav a { padding: 10px 14px; border-radius: 8px; }
  .nav-cta { text-align: center; margin-top: 6px; }
  .header-main { position: relative; }
  .svc-grid { grid-template-columns: 1fr; }
  .svc-featured { gap: 16px; }
  .svc-feat-card { flex-direction: column; }
  .steps { grid-template-columns: 1fr; }
  .why-list { grid-template-columns: 1fr 1fr; }
  .why-item:nth-child(3) { border-right: 1px solid rgba(255,255,255,.08); }
  .why-item:nth-child(2), .why-item:nth-child(4) { border-right: none; }
  .why-item { border-top: 1px solid rgba(255,255,255,.08); }
  .why-item:nth-child(1), .why-item:nth-child(2) { border-top: none; }
  .cinfo-col { grid-template-columns: 1fr; }
  .cform { padding: 28px 20px; }
  .cform-row { grid-template-columns: 1fr; }
  .about-abn-card { right: 0; bottom: -16px; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-cta-inner { flex-direction: column; }
  .footer-bottom-inner { flex-direction: column; text-align: center; gap: 4px; }
  .about-stats-row { flex-direction: column; border: none; gap: 4px; }
  .astat { border-right: none; border-bottom: 1px solid var(--border); text-align: left; display: flex; align-items: center; gap: 12px; }
  .astat strong { font-size: 1.4rem; }
}

/* 超大屏（>1400px）：限制 hero 文字区不过度扩张 */
@media (min-width: 1400px) {
  .hero-panel { width: 50%; max-width: 680px; }
  .hero-content { padding: 0 80px 0 clamp(40px, calc((100vw - 1400px)/2 + 40px), 120px); max-width: 540px; }
}

/* Scroll reveal */
@keyframes fadeUp { from { opacity:0; transform:translateY(22px); } to { opacity:1; transform:translateY(0); } }