/* ============================================================
   迈创信息官网 — 统一样式 v3
   主题：暖色编辑式 · Warm Editorial (light)
   零外部依赖，离线可看
   设计语言：赤陶暖棕 + 奶油底 + 简约线条
   迈创信息科技风设计
   ============================================================ */

:root {
  --c-primary:        #b85c38;   /* 主色 赤陶暖棕 */
  --c-primary-dark:   #8b3a22;
  --c-primary-light:  #d4845a;
  --c-accent:         #2d6a4f;   /* 辅助 深森绿 */
  --c-accent-light:   #40916c;
  --c-ink:            #2d2a26;   /* 深棕墨色文字 */
  --c-body:           #4a4540;
  --c-muted:          #7a746d;
  --c-line:           #d9d4cd;
  --c-bg:             #f7f2ed;   /* 暖奶油底 */
  --c-white:          #ffffff;
  --c-surface:        #efe9e2;
  --c-surface-2:      #e6dfd5;
  --c-hero-grad-a:    #b85c38;
  --c-hero-grad-b:    #d4845a;
  --c-hero-grad-c:    #c97b4b;
  --c-footer-bg:      #2d2a26;
  --c-footer-text:    #efe9e2;
  --c-footer-accent:  #d4845a;
  --radius:           6px;       /* 小圆角=编辑感 */
  --radius-sm:        4px;
  --shadow-sm:        0 1px 4px rgba(45,42,38,.06);
  --shadow:           0 4px 16px rgba(45,42,38,.08);
  --shadow-lg:        0 12px 36px rgba(184,92,56,.12);
  --maxw:             1120px;
  --nav-h:            64px;
  --font: "Microsoft YaHei","PingFang SC","Hiragino Sans GB","Source Han Sans CN",
          "Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --serif: "Noto Serif CJK SC","Source Han Serif CN","STSong","SimSun",serif;
}

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

html { scroll-behavior: smooth; scroll-padding-top: var(--nav-h); }

body {
  font-family: var(--font);
  color: var(--c-body);
  background: var(--c-bg);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--c-primary); text-decoration: none; transition: .2s; }
a:hover { color: var(--c-primary-dark); }
img, svg { display: block; max-width: 100%; }
ul { list-style: none; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }

/* ---------- 文字标识 ---------- */
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 800; letter-spacing: .5px; text-decoration: none;
}
.brand .mark {
  width: 36px; height: 36px; border-radius: var(--radius);
  background: transparent;
  display: grid; place-items: center; flex: none;
}
.brand .mark svg, .brand .mark img { width: 20px; height: 20px; }
.brand .name { line-height: 1.15; }
.brand .name .cn { font-size: 17px; color: var(--c-ink); }
.brand .name .en {
  font-size: 10px; letter-spacing: 2px; color: var(--c-primary);
  text-transform: uppercase; font-weight: 700;
}
.brand:hover .name .cn { color: var(--c-primary-dark); }

/* ---------- 顶部导航 — 简约线条式 ---------- */
.nav, .site-header {
  position: sticky; top: 0; z-index: 50;
  height: var(--nav-h);
  background: var(--c-white);
  border-bottom: 2px solid var(--c-primary);
}
.nav .container, .nav-bar {
  height: 100%; display: flex; align-items: center; justify-content: space-between;
}
.nav-links { display: flex; align-items: center; gap: 2px; }
.nav-links a {
  padding: 8px 16px; color: var(--c-body);
  font-size: 15px; font-weight: 500; transition: .2s;
  position: relative;
}
.nav-links a::after {
  content: ""; position: absolute; bottom: -2px; left: 16px; right: 16px;
  height: 2px; background: var(--c-primary); opacity: 0; transition: .2s;
}
.nav-links a:hover { color: var(--c-primary); }
.nav-links a:hover::after { opacity: 1; }
.nav-links a.active { color: var(--c-primary); font-weight: 700; }
.nav-links a.active::after { opacity: 1; }
.nav-cta { margin-left: 8px; }
.hamburger { display: none; background: none; border: 0; cursor: pointer; padding: 8px; font-size: 20px; color: var(--c-ink); }

/* ---------- 按钮 — 实心方角 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 24px; border-radius: var(--radius); font-weight: 700;
  font-size: 15px; cursor: pointer; border: 2px solid transparent;
  transition: .2s; line-height: 1;
}
.btn-primary { background: var(--c-primary); color: #fff; }
.btn-primary:hover { background: var(--c-primary-dark); transform: translateY(-1px); }
.btn-ghost { background: var(--c-white); color: var(--c-primary); border-color: var(--c-primary); }
.btn-ghost:hover { background: var(--c-primary); color: #fff; }
.btn-light { background: rgba(255,255,255,.18); color: #fff; border-color: rgba(255,255,255,.5); }
.btn-light:hover { background: rgba(255,255,255,.32); }

/* ---------- Hero — 暖色大字排印 ---------- */
.hero {
  position: relative; overflow: hidden;
  background: linear-gradient(160deg, #8b3a22 0%, #b85c38 40%, #c97b4b 70%, #d4845a 100%);
  color: #fff;
}
.hero .container { position: relative; z-index: 2; padding: 80px 28px 100px; }
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: center; }
.hero .eyebrow {
  display: inline-block; padding: 6px 14px;
  background: rgba(255,255,255,.15); font-size: 13px; letter-spacing: 2px; margin-bottom: 18px;
  font-family: var(--serif);
}
.hero h1 {
  font-size: clamp(30px, 4.6vw, 48px); line-height: 1.2; font-weight: 900; margin-bottom: 20px;
  font-family: var(--serif);
}
.hero h1 .hl { color: #ffe5b4; }
.hero p.lead { font-size: 17px; color: rgba(255,255,255,.92); max-width: 560px; margin-bottom: 28px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-deco { position: absolute; inset: 0; z-index: 1; opacity: .85; }
.hero-stats {
  position: relative; z-index: 2; margin-top: 48px;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px;
}
.hero-stats .s {
  background: rgba(255,255,255,.08); border-left: 3px solid #ffe5b4;
  padding: 20px 18px;
}
.hero-stats .s b { display: block; font-size: 28px; font-weight: 900; color: #fff; }
.hero-stats .s span { font-size: 13px; color: rgba(255,255,255,.82); }

/* ---------- 内页页头 — 暖色底 ---------- */
.page-header, .page-head {
  position: relative; overflow: hidden;
  background: var(--c-surface-2);
  border-bottom: 2px solid var(--c-primary);
}
.page-header .container, .page-head .container { position: relative; z-index: 2; padding: 48px 28px 54px; }
.page-header h1, .page-head h1 {
  font-size: clamp(26px, 3.6vw, 38px); font-weight: 900; color: var(--c-ink);
  font-family: var(--serif);
}
.page-header p, .page-head p { color: var(--c-muted); margin-top: 8px; max-width: 640px; }
.page-header .crumb, .page-head .crumb { font-size: 13px; color: var(--c-muted); margin-bottom: 10px; }
.page-header .crumb a, .page-head .crumb a { color: var(--c-primary); }

/* ---------- 通用区块 ---------- */
section.block { padding: 72px 0; }
.block.alt, .block.bg-light { background: var(--c-white); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 46px; }
.section-head .kicker {
  color: var(--c-accent); font-weight: 700; letter-spacing: 3px; font-size: 12px;
  text-transform: uppercase; font-family: var(--serif);
}
.section-head h2, .section-title {
  font-size: clamp(24px, 3.4vw, 34px); color: var(--c-ink); margin: 10px 0 12px;
  font-weight: 900; text-align: center; font-family: var(--serif);
}
.section-head p, .section-sub { color: var(--c-muted); font-size: 16px; text-align: center; }

/* ---------- 卡片 — 极简左竖线 ---------- */
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--c-white); border-left: 3px solid var(--c-primary);
  padding: 24px 22px; transition: .2s; box-shadow: var(--shadow-sm);
}
.card:hover { border-left-color: var(--c-accent); box-shadow: var(--shadow); }
.card .ico {
  width: 44px; height: 44px; display: grid; place-items: center;
  color: var(--c-primary); margin-bottom: 14px;
}
.card .ico svg { width: 24px; height: 24px; }
.card h3 { font-size: 18px; color: var(--c-ink); margin-bottom: 8px; }
.card p { color: var(--c-muted); font-size: 14.5px; }
.card .tag {
  display: inline-block; margin-top: 14px; font-size: 12px; font-weight: 700;
  color: var(--c-primary); background: var(--c-surface); padding: 4px 10px;
  border-radius: var(--radius-sm);
}
.card .tag.soon { color: #b45309; background: #fef3c7; }

/* ---------- 客户墙 — 无边框方块 ---------- */
.clients { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
.client {
  background: var(--c-white); padding: 16px 10px; text-align: center; color: var(--c-body);
  font-weight: 600; font-size: 14px; display: flex; align-items: center; justify-content: center;
  min-height: 60px; transition: .2s; border-bottom: 2px solid transparent;
}
.client:hover { border-bottom-color: var(--c-primary); color: var(--c-primary); }

/* ---------- 列表特性 ---------- */
.feature-list li {
  display: flex; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--c-line);
  align-items: flex-start;
}
.feature-list li:last-child { border-bottom: 0; }
.feature-list .dot {
  flex: none; color: var(--c-primary); font-size: 16px; font-weight: 800; width: 20px;
}
.feature-list b { color: var(--c-ink); }
.feature-list span { color: var(--c-muted); font-size: 14.5px; }

/* ---------- 资质条 ---------- */
.badges { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.badge {
  background: var(--c-white); padding: 10px 18px; font-size: 14px;
  color: var(--c-body); font-weight: 600;
  display: inline-flex; align-items: center; gap: 8px;
  border-bottom: 2px solid var(--c-primary);
}
.badge::before { content: ""; width: 8px; height: 8px; border-radius: 2px; background: var(--c-accent); }

/* ---------- 时间线 ---------- */
.timeline { max-width: 760px; margin: 0 auto; position: relative; padding-left: 26px; }
.timeline::before { content: ""; position: absolute; left: 7px; top: 6px; bottom: 6px; width: 2px; background: var(--c-line); }
.tl-item { position: relative; padding: 0 0 26px 22px; }
.tl-item::before {
  content: ""; position: absolute; left: -26px; top: 6px; width: 16px; height: 16px;
  border-radius: 2px; background: var(--c-primary);
}
.tl-item .year { font-weight: 800; color: var(--c-primary); }
.tl-item h4 { color: var(--c-ink); margin: 2px 0 4px; font-size: 16px; }
.tl-item p { color: var(--c-muted); font-size: 14.5px; }

/* ---------- 案例 ---------- */
.case-group { margin-bottom: 40px; }
.case-group > h3 { font-size: 20px; color: var(--c-ink); margin-bottom: 18px; display: flex; align-items: center; gap: 10px; }
.case-group > h3 .bar { width: 4px; height: 20px; background: var(--c-primary); }
.case {
  background: var(--c-white); border-left: 3px solid var(--c-accent);
  padding: 18px 22px; transition: .2s; margin-bottom: 14px;
}
.case:hover { border-left-color: var(--c-primary); }
.case .client-name { font-weight: 800; color: var(--c-ink); font-size: 17px; }
.case .client-name .pill {
  font-size: 11px; font-weight: 700; color: #fff; background: var(--c-accent);
  padding: 2px 9px; border-radius: var(--radius-sm); margin-left: 10px; vertical-align: middle;
}
.case p { color: var(--c-muted); font-size: 14.5px; margin-top: 6px; }

/* ---------- 联系 ---------- */
.contact-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; }
.contact-info h2 { font-size: 22px; color: var(--c-ink); margin-bottom: 24px; }
.info-item { display: flex; gap: 14px; padding: 16px 0; border-bottom: 1px solid var(--c-line); align-items: flex-start; }
.info-item svg { flex: none; margin-top: 2px; stroke: var(--c-primary); }
.info-item b { color: var(--c-ink); }
.info-item p { color: var(--c-muted); font-size: 14.5px; }
.contact-form-card { background: var(--c-white); border-left: 3px solid var(--c-primary); padding: 28px; }
.contact-form-card h2 { font-size: 20px; color: var(--c-ink); margin-bottom: 6px; }
.form-tip { color: var(--c-muted); font-size: 14px; margin-bottom: 20px; }
.contact-form .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact-form .form-group { margin-bottom: 16px; }
.contact-form .form-group.full { grid-column: 1 / -1; }
.contact-form label { display: block; font-size: 14px; color: var(--c-ink); font-weight: 600; margin-bottom: 6px; }
.contact-form .required { color: #dc2626; }
.contact-form input, .contact-form textarea, .contact-form select {
  width: 100%; padding: 11px 14px; border: 1px solid var(--c-line); border-radius: var(--radius-sm);
  font-family: inherit; font-size: 15px; color: var(--c-ink); background: var(--c-bg); transition: .2s;
}
.contact-form input:focus, .contact-form textarea:focus, .contact-form select:focus { outline: none; border-color: var(--c-primary); box-shadow: 0 0 0 3px rgba(184,92,56,.12); }
.contact-form textarea { resize: vertical; min-height: 110px; }
.contact-form .btn { width: 100%; justify-content: center; margin-top: 4px; }
.form-success { text-align: center; padding: 30px 0; }
.form-success h3 { color: var(--c-ink); margin-top: 12px; }
.form-success p { color: var(--c-muted); }

/* 合作流程 */
.flow-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.flow-step { text-align: center; padding: 24px 16px; }
.step-num {
  font-size: 32px; font-weight: 900; color: var(--c-primary); line-height: 1; margin-bottom: 14px;
  font-family: var(--serif);
}
.flow-step h3 { font-size: 17px; color: var(--c-ink); margin-bottom: 6px; }
.flow-step p { color: var(--c-muted); font-size: 14px; }

/* 兼容旧类名 */
.info-row { display: flex; gap: 14px; padding: 16px 0; border-bottom: 1px solid var(--c-line); align-items: flex-start; }
.info-row .ico { width: 42px; height: 42px; flex: none; background: var(--c-surface); color: var(--c-primary); display: grid; place-items: center; }
.info-row .ico svg { width: 22px; height: 22px; }
.info-row b { color: var(--c-ink); display: block; }
.info-row span { color: var(--c-muted); font-size: 14.5px; }
.form .field { margin-bottom: 16px; }
.form label { display: block; font-size: 14px; color: var(--c-ink); font-weight: 600; margin-bottom: 6px; }
.form input, .form textarea, .form select {
  width: 100%; padding: 11px 14px; border: 1px solid var(--c-line); border-radius: var(--radius-sm);
  font-family: inherit; font-size: 15px; color: var(--c-ink); background: var(--c-bg); transition: .2s;
}
.form input:focus, .form textarea:focus, .form select:focus { outline: none; border-color: var(--c-primary); box-shadow: 0 0 0 3px rgba(184,92,56,.12); }
.form textarea { resize: vertical; min-height: 110px; }
.form .hint { font-size: 12px; color: var(--c-muted); margin-top: 8px; }
.form .err { color: #dc2626; font-size: 13px; margin-top: 6px; display: none; }
.form .ok-msg { display: none; background: #ecfdf5; border: 1px solid #a7f3d0; color: #047857; padding: 12px 14px; border-radius: var(--radius-sm); font-size: 14px; margin-top: 10px; }

/* ---------- 页脚 — 暖色深底 ---------- */
.site-footer, .footer {
  background: var(--c-footer-bg); color: var(--c-footer-text); padding: 54px 0 26px;
}
.footer-grid, .footer .cols { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 30px; }
.footer-brand .brand .wordmark .cn, .footer .brand .name .cn { color: #fff; }
.footer-brand .brand .wordmark-en, .footer .brand .name .en { color: var(--c-footer-accent); }
.footer-desc { font-size: 14px; line-height: 1.8; max-width: 320px; margin-top: 14px; }
.footer-nav h4, .footer-contact h4, .footer h4 { color: #fff; font-size: 15px; margin-bottom: 16px; }
.footer-nav a, .footer-contact p, .footer a { color: var(--c-footer-text); font-size: 14px; display: block; padding: 5px 0; text-decoration: none; }
.footer-nav a:hover, .footer a:hover { color: var(--c-footer-accent); }
.footer-bottom, .footer .bottom {
  border-top: 1px solid rgba(255,255,255,.15); margin-top: 34px; padding-top: 18px;
  font-size: 13px; color: rgba(255,255,255,.5); text-align: center;
}
.footer-bottom a, .footer .bottom a { display: inline; color: rgba(255,255,255,.5); }
.about-txt { font-size: 14px; line-height: 1.8; max-width: 320px; }

/* ---------- 进入动画 ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: .5s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .clients { grid-template-columns: repeat(3, 1fr); }
  .contact-wrap { grid-template-columns: 1fr; }
  .footer .cols { grid-template-columns: 1fr 1fr; }
  .flow-steps { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  .hamburger { display: block; }
  .nav-links {
    position: absolute; top: var(--nav-h); left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--c-white); padding: 10px 16px 18px;
    display: none; box-shadow: var(--shadow);
    border-bottom: 2px solid var(--c-primary);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 8px; }
  .nav-links a::after { display: none; }
  .nav-cta { margin: 10px 0 0; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .clients { grid-template-columns: repeat(2, 1fr); }
  .footer .cols { grid-template-columns: 1fr; }
  .flow-steps { grid-template-columns: 1fr; }
  .contact-form .form-row { grid-template-columns: 1fr; }
  section.block { padding: 52px 0; }
}