/* ============================================================
   山东精鹰官网 全站样式
   依据 docs/05-视觉设计方向.md + docs/style-tile.html
   记忆点：斜切角体系 / 双语区块标题 / 产能红徽章 / 数据带铜色数字
   ============================================================ */

/* ---------- 1. 令牌 ---------- */
:root {
  /* 结构色：深钢蓝 */
  --c-navy:      #16283C;
  --c-navy-800:  #1F3550;
  /* 品牌强调：精鹰红（仅 CTA/徽章/短杠/关键数字下划线） */
  --c-red:       #D8121F;
  --c-red-hover: #B60E19;
  /* 点缀：紫铜（仅数据带数字/图标描边） */
  --c-copper:    #B87333;
  /* 中性 */
  --c-text:      #1F2937;
  --c-text-sub:  #5B6B7B;
  --c-steel:     #8A97A5;
  --c-bg:        #F5F7F9;
  --c-white:     #FFFFFF;
  /* 功能 */
  --c-success:   #1E7F4F;
  --c-error:     #C0392B;

  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Segoe UI", sans-serif;
  --font-num:  "Bahnschrift", "DIN Alternate", "Arial Narrow", "Segoe UI", sans-serif;

  --border-card: 1px solid rgba(138, 151, 165, .25);
  --shadow-card: 0 2px 8px rgba(22, 40, 60, .06);
  --shadow-hover: 0 8px 24px rgba(22, 40, 60, .10);

  /* 斜切角（右上 / 右下） */
  --cut-tr: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
  --cut-br: polygon(0 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%);

  --nav-h: 72px;
  --sec-gap: 96px;
}

/* ---------- 2. 基础 ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  font-size: 16px; line-height: 1.75;
  color: var(--c-text); background: var(--c-white);
  padding-top: var(--nav-h);
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: var(--font-sans); cursor: pointer; }
:focus-visible { outline: 2px solid var(--c-navy); outline-offset: 2px; }

.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }

.section { padding: var(--sec-gap) 0; }
.section--gray { background: var(--c-bg); }
.section--navy { background: var(--c-navy); color: #fff; }
.section--tight { padding: 56px 0; }

/* ---------- 3. 双语区块标题 ---------- */
.sec-title { margin-bottom: 40px; }
.sec-title .en {
  font-size: 28px; font-weight: 800; letter-spacing: .02em;
  text-transform: uppercase; color: var(--c-navy); line-height: 1.2;
}
.sec-title .zh { font-size: 18px; font-weight: 500; color: var(--c-text-sub); margin-top: 4px; }
.sec-title .bar { width: 32px; height: 4px; background: var(--c-red); margin-top: 12px; }
.sec-title--center { text-align: center; }
.sec-title--center .bar { margin-left: auto; margin-right: auto; }
.sec-title--light .en { color: #fff; }
.sec-title--light .zh { color: rgba(255, 255, 255, .72); }

/* ---------- 4. 按钮 / 徽章 ---------- */
.btn {
  display: inline-block; border: none; font-size: 16px; font-weight: 600;
  padding: 14px 32px; transition: background .2s, color .2s, box-shadow .2s;
  clip-path: var(--cut-br); text-align: center; line-height: 1.5;
}
.btn-primary { background: var(--c-red); color: #fff; }
.btn-primary:hover { background: var(--c-red-hover); }
.btn-primary .arr { display: inline-block; transition: transform .2s; margin-left: 6px; }
.btn-primary:hover .arr { transform: translateX(4px); }
.btn-ghost { background: transparent; color: var(--c-navy); box-shadow: inset 0 0 0 1.5px var(--c-navy); }
.btn-ghost:hover { background: var(--c-navy); color: #fff; }
.btn-ghost--light { color: #fff; box-shadow: inset 0 0 0 1.5px #fff; }
.btn-ghost--light:hover { background: #fff; color: var(--c-navy); }
.btn-block { display: block; width: 100%; }
.btn[disabled] { opacity: .55; cursor: not-allowed; }

.badge-cap {
  display: inline-flex; align-items: baseline; gap: 6px;
  background: var(--c-red); color: #fff; padding: 8px 18px 8px 14px;
  clip-path: var(--cut-br); line-height: 1.2;
}
.badge-cap small { font-size: 12px; }
.badge-cap b { font-family: var(--font-num); font-size: 22px; font-weight: 700; letter-spacing: .02em; }

/* ---------- 5. 导航栏 ---------- */
.site-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h); background: var(--c-white);
  transition: height .25s, box-shadow .25s;
}
.site-nav.scrolled { height: 60px; box-shadow: 0 1px 0 rgba(138, 151, 165, .35), 0 4px 16px rgba(22, 40, 60, .06); }
.site-nav .nav-inner {
  max-width: 1280px; margin: 0 auto; padding: 0 24px; height: 100%;
  display: flex; align-items: center; gap: 32px;
}
.nav-logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.nav-logo img { height: 44px; width: auto; }
.nav-menu { display: flex; align-items: center; gap: 4px; margin-left: auto; height: 100%; }
.nav-item { position: relative; height: 100%; display: flex; align-items: center; }
.nav-link {
  display: flex; align-items: center; gap: 4px; padding: 8px 14px;
  font-size: 15px; font-weight: 500; color: var(--c-text); white-space: nowrap;
  border-bottom: 2px solid transparent; transition: color .2s;
}
.nav-link:hover, .nav-link.active { color: var(--c-red); }
.nav-link.active { border-bottom-color: var(--c-red); }
.nav-caret { width: 10px; height: 10px; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: rotate(45deg) translateY(-2px); margin-left: 2px; }
.nav-dropdown {
  position: absolute; top: 100%; left: 0; min-width: 240px;
  background: #fff; border: var(--border-card); border-top: 2px solid var(--c-red);
  box-shadow: var(--shadow-hover); padding: 8px 0;
  opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: opacity .2s, transform .2s, visibility .2s;
}
.nav-item:hover .nav-dropdown, .nav-item:focus-within .nav-dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-dropdown a { display: block; padding: 9px 20px; font-size: 14px; color: var(--c-text); }
.nav-dropdown a:hover { background: var(--c-bg); color: var(--c-red); }
.nav-actions { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
.lang-switch {
  font-size: 13px; font-weight: 600; letter-spacing: .04em; color: var(--c-navy);
  border: 1.5px solid var(--c-steel); padding: 5px 12px; background: transparent;
  clip-path: var(--cut-br); transition: border-color .2s, color .2s;
}
.lang-switch:hover { border-color: var(--c-navy); }
.nav-cta { padding: 10px 22px; font-size: 14px; }
.nav-burger { display: none; background: none; border: none; width: 40px; height: 40px; position: relative; }
.nav-burger span {
  display: block; width: 22px; height: 2px; background: var(--c-navy);
  margin: 5px auto; transition: transform .25s, opacity .25s;
}
.nav-burger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-burger.active span:nth-child(2) { opacity: 0; }
.nav-burger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.nav-overlay {
  position: fixed; inset: var(--nav-h) 0 0 0; background: #fff; z-index: 99;
  padding: 24px; overflow-y: auto; display: none;
}
.nav-overlay.active { display: block; }
.nav-overlay a { display: block; padding: 13px 8px; font-size: 17px; font-weight: 500; border-bottom: 1px solid rgba(138, 151, 165, .2); }
.nav-overlay a.active { color: var(--c-red); }
.nav-overlay .sub a { font-size: 14px; color: var(--c-text-sub); padding: 10px 8px 10px 24px; }

/* ---------- 6. Hero / 页头横幅 ---------- */
.hero {
  position: relative; min-height: 72vh; display: flex; align-items: center;
  background: var(--c-navy); overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .55; }
.hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(105deg, rgba(22, 40, 60, .8) 0%, rgba(22, 40, 60, .75) 25%, rgba(22, 40, 60, .2) 100%); }
.hero-inner { position: relative; z-index: 2; max-width: 1280px; margin: 0 auto; padding: 96px 24px; width: 100%; }
.hero h1 { font-size: 40px; font-weight: 700; line-height: 1.25; color: #fff; max-width: 720px; }
.hero .hero-sub { font-size: 18px; color: rgba(255, 255, 255, .85); margin-top: 18px; max-width: 640px; }
.hero .hero-cta { margin-top: 36px; display: flex; gap: 16px; flex-wrap: wrap; }

.page-head { background: var(--c-navy); color: #fff; padding: 72px 0 56px; position: relative; overflow: hidden; }
.page-head::before {
  content: ""; position: absolute; right: -60px; top: -60px; width: 320px; height: 320px;
  background: var(--c-navy-800); transform: skewX(-18deg); opacity: .6;
}
/* 配置了背景图时（common.js 加 has-bg 类）：图片铺满 + 深蓝蒙层保证文字可读（docs/05 §6） */
.page-head.has-bg { background-size: cover; background-position: center; }
.page-head.has-bg::after {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(105deg, rgba(22, 40, 60, .85) 0%, rgba(22, 40, 60, .78) 30%, rgba(22, 40, 60, .3) 100%);
}
.page-head .container { position: relative; z-index: 2; }
.page-head h1 { font-size: 36px; font-weight: 700; line-height: 1.25; }
.page-head .page-head-en {
  font-size: 13px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase;
  color: var(--c-copper); margin-bottom: 10px;
}
.page-head p.lead { margin-top: 14px; max-width: 760px; color: rgba(255, 255, 255, .8); font-size: 16px; }

/* ---------- 7. 面包屑 ---------- */
.breadcrumb { font-size: 14px; color: var(--c-text-sub); padding: 18px 0; }
.breadcrumb a { color: var(--c-text-sub); }
.breadcrumb a:hover { color: var(--c-red); }
.breadcrumb .sep { margin: 0 8px; color: var(--c-steel); }
.breadcrumb .cur { color: var(--c-text); }

/* ---------- 8. 卡片 ---------- */
.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); }
.grid-5 { grid-template-columns: repeat(5, 1fr); }

.card {
  background: #fff; border: var(--border-card); box-shadow: var(--shadow-card);
  clip-path: var(--cut-tr); transition: transform .25s, border-color .25s, box-shadow .25s;
  display: flex; flex-direction: column;
}
.card:hover { transform: translateY(-4px); border-color: var(--c-navy); box-shadow: var(--shadow-hover); }
.card .ph { position: relative; aspect-ratio: 4 / 3; overflow: hidden; background: var(--c-navy-800); }
.card .ph--case { aspect-ratio: 16 / 10; }
.card .ph img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.88); }
.card .ph .badge-cap { position: absolute; left: 0; bottom: 0; }
.card .bd { padding: 20px; flex: 1; display: flex; flex-direction: column; }
.card h3 {
  font-size: 20px; font-weight: 600; color: var(--c-navy); line-height: 1.4;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.card .desc {
  font-size: 14px; color: var(--c-text-sub); margin-top: 6px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.card .meta { margin-top: auto; padding-top: 14px; font-size: 13px; color: var(--c-steel); display: flex; justify-content: space-between; gap: 8px; }
.card .more { color: var(--c-red); font-weight: 600; font-size: 14px; }

/* 系统（分类）卡片：无图纯文字 */
.sys-card {
  background: #fff; border: var(--border-card); padding: 28px 24px;
  clip-path: var(--cut-tr); transition: transform .25s, border-color .25s, box-shadow .25s;
  display: block; height: 100%;
}
.sys-card:hover { transform: translateY(-4px); border-color: var(--c-navy); box-shadow: var(--shadow-hover); }
.sys-card .num { font-family: var(--font-num); font-size: 15px; font-weight: 700; color: var(--c-copper); letter-spacing: .06em; }
.sys-card h3 { font-size: 19px; font-weight: 600; color: var(--c-navy); margin-top: 8px; }
.sys-card .en { font-size: 13px; color: var(--c-text-sub); margin-top: 2px; line-height: 1.5; }
.sys-card p { font-size: 14px; color: var(--c-text-sub); margin-top: 10px; }

/* ---------- 9. 数据带 ---------- */
.databand { background: var(--c-navy); color: #fff; }
.databand-inner {
  max-width: 1280px; margin: 0 auto; padding: 64px 24px;
  display: flex; flex-wrap: wrap; gap: 40px; justify-content: space-around; text-align: center;
}
.databand .num { font-family: var(--font-num); font-size: 56px; font-weight: 700; color: var(--c-copper); line-height: 1.1; }
.databand .num small { font-size: 20px; color: #fff; margin-left: 4px; font-family: var(--font-sans); }
.databand .lbl { font-size: 14px; color: rgba(255, 255, 255, .75); margin-top: 6px; }

/* ---------- 10. 交付流程 ---------- */
.process { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.process-step { background: #fff; border: var(--border-card); padding: 28px 24px; clip-path: var(--cut-tr); position: relative; }
.process-step .no { font-family: var(--font-num); font-size: 40px; font-weight: 700; color: var(--c-copper); line-height: 1; }
.process-step h3 { font-size: 18px; font-weight: 600; color: var(--c-navy); margin-top: 12px; }
.process-step p { font-size: 14px; color: var(--c-text-sub); margin-top: 8px; }

/* ---------- 11. 合作伙伴文字 Logo 墙 ---------- */
.logo-wall { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }
.logo-wall .lg {
  border: var(--border-card); background: #fff; padding: 14px 26px;
  font-size: 15px; font-weight: 600; color: var(--c-steel); letter-spacing: .04em;
  clip-path: var(--cut-br); transition: color .25s, border-color .25s; white-space: nowrap;
}
.logo-wall .lg:hover { color: var(--c-navy); border-color: var(--c-navy); }
/* 伙伴 Logo 图标（后台上传后自动生效）：统一高度、灰度化，hover 恢复彩色（docs/05 §6.4） */
.logo-wall .lg--img { padding: 12px 22px; display: inline-flex; flex-direction: column; align-items: center; gap: 8px; position: relative; transition: transform .25s ease; transform-origin: center; }
.logo-wall .lg--img:hover { transform: scale(1.5); z-index: 3; }
.logo-wall .lg--img img {
  height: 36px; max-width: 150px; object-fit: contain; display: block;
  filter: grayscale(1); opacity: .75; transition: filter .25s, opacity .25s;
}
.logo-wall .lg--img:hover img { filter: none; opacity: 1; }
/* 伙伴名称：常驻 logo 下方，小号灰字，保证辨识度（docs/05 §6.4） */
.logo-wall .lg-name { font-size: 12px; font-weight: 600; color: var(--c-steel); letter-spacing: .02em; line-height: 1; white-space: nowrap; }
.logo-wall-note { text-align: center; font-size: 13px; color: var(--c-steel); margin-top: 20px; }

/* ---------- 12. 询盘表单 ---------- */
.inquiry-sec { background: var(--c-navy); padding: var(--sec-gap) 0; }
.inquiry-card { background: #fff; max-width: 880px; margin: 0 auto; padding: 48px; clip-path: var(--cut-tr); }
.inquiry-form { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 8px; }
.inquiry-form .full { grid-column: 1 / -1; }
.inquiry-form label { display: block; font-size: 14px; font-weight: 500; color: var(--c-text); margin-bottom: 6px; }
.inquiry-form input, .inquiry-form select, .inquiry-form textarea {
  width: 100%; height: 48px; border: 1px solid var(--c-steel); border-radius: 2px;
  padding: 0 14px; font-size: 15px; font-family: var(--font-sans); color: var(--c-text);
  background: #fff; outline: none; transition: border-color .2s, box-shadow .2s;
}
.inquiry-form textarea { height: 110px; padding: 12px 14px; resize: vertical; line-height: 1.6; }
.inquiry-form input:focus, .inquiry-form select:focus, .inquiry-form textarea:focus {
  border-color: var(--c-navy); box-shadow: 0 0 0 2px rgba(22, 40, 60, .12);
}
.inquiry-form .hint { font-size: 13px; color: var(--c-text-sub); }
.form-msg { grid-column: 1 / -1; font-size: 14px; padding: 12px 16px; display: none; }
.form-msg.ok { display: block; background: rgba(30, 127, 79, .08); color: var(--c-success); border: 1px solid rgba(30, 127, 79, .3); }
.form-msg.err { display: block; background: rgba(192, 57, 43, .07); color: var(--c-error); border: 1px solid rgba(192, 57, 43, .3); }
/* 蜜罐字段：对人不可见 */
.hp-field { position: absolute !important; left: -9999px !important; width: 1px; height: 1px; overflow: hidden; opacity: 0; }

/* ---------- 13. 筛选 tab / 分页 ---------- */
.filter-tabs { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 36px; }
.filter-tab {
  border: 1.5px solid var(--c-steel); background: #fff; color: var(--c-text-sub);
  font-size: 14px; font-weight: 500; padding: 8px 20px; clip-path: var(--cut-br);
  transition: color .2s, border-color .2s, background .2s;
}
.filter-tab:hover { border-color: var(--c-navy); color: var(--c-navy); }
.filter-tab.active { background: var(--c-navy); border-color: var(--c-navy); color: #fff; }

.pager { display: flex; justify-content: center; gap: 8px; margin-top: 48px; flex-wrap: wrap; }
.pager button {
  min-width: 42px; height: 42px; padding: 0 12px; border: 1px solid var(--c-steel);
  background: #fff; color: var(--c-text); font-size: 15px; font-family: var(--font-num);
  clip-path: var(--cut-br); transition: border-color .2s, background .2s, color .2s;
}
.pager button:hover:not([disabled]):not(.cur) { border-color: var(--c-navy); color: var(--c-navy); }
.pager button.cur { background: var(--c-red); border-color: var(--c-red); color: #fff; }
.pager button[disabled] { opacity: .4; cursor: not-allowed; }

/* ---------- 14. 详情页 ---------- */
.detail-layout { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 48px; align-items: start; }
.detail-main h1 { font-size: 32px; font-weight: 700; color: var(--c-navy); line-height: 1.3; }
.detail-meta { display: flex; flex-wrap: wrap; gap: 8px 24px; margin-top: 14px; font-size: 14px; color: var(--c-text-sub); }
.detail-cover { margin-top: 28px; border: var(--border-card); }
.detail-cover img { width: 100%; filter: saturate(.9); }
.rich { margin-top: 28px; }
.rich p { margin: 14px 0; }
.rich h2 { font-size: 24px; color: var(--c-navy); margin: 32px 0 12px; }
.rich h3 { font-size: 20px; color: var(--c-navy); margin: 26px 0 10px; }
.rich ul, .rich ol { padding-left: 24px; margin: 14px 0; }
.rich ul { list-style: disc; }
.rich ol { list-style: decimal; }
.rich li { margin: 6px 0; }
.rich img { margin: 18px 0; border: var(--border-card); }
.rich table { width: 100%; border-collapse: collapse; margin: 18px 0; font-size: 15px; }
.rich table th, .rich table td { border: 1px solid rgba(138, 151, 165, .4); padding: 10px 14px; text-align: left; }
.rich table th { background: var(--c-bg); color: var(--c-navy); }
.rich blockquote { border-left: 4px solid var(--c-red); background: var(--c-bg); padding: 16px 20px; margin: 18px 0; color: var(--c-text-sub); }

.detail-aside { position: sticky; top: 96px; }
.aside-box { background: var(--c-bg); padding: 28px 24px; margin-bottom: 24px; clip-path: var(--cut-tr); }
.aside-box h3 { font-size: 17px; font-weight: 700; color: var(--c-navy); margin-bottom: 14px; }
.aside-box p { font-size: 14px; color: var(--c-text-sub); margin-bottom: 8px; }
.aside-box .btn { margin-top: 12px; }
.aside-links a { display: block; font-size: 14px; padding: 9px 0; border-bottom: 1px solid rgba(138, 151, 165, .25); color: var(--c-text); }
.aside-links a:hover { color: var(--c-red); }

.gallery { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-top: 12px; }
.gallery img { aspect-ratio: 1 / 1; object-fit: cover; border: var(--border-card); cursor: pointer; filter: saturate(.9); }

.params-table { width: 100%; border-collapse: collapse; margin-top: 16px; font-size: 15px; }
.params-table th, .params-table td { border: 1px solid rgba(138, 151, 165, .4); padding: 10px 14px; text-align: left; }
.params-table th { background: var(--c-bg); color: var(--c-navy); width: 32%; font-weight: 600; }

.prevnext { display: flex; justify-content: space-between; gap: 16px; margin-top: 48px; padding-top: 24px; border-top: 1px solid rgba(138, 151, 165, .3); }
.prevnext a { font-size: 14px; color: var(--c-text-sub); max-width: 45%; }
.prevnext a:hover { color: var(--c-red); }

.case-quote { border-left: 4px solid var(--c-red); background: var(--c-bg); padding: 20px 24px; margin-top: 28px; }
.case-quote p { font-size: 16px; color: var(--c-text); font-style: italic; }
.case-quote .who { font-size: 13px; color: var(--c-text-sub); margin-top: 8px; font-style: normal; }

/* ---------- 15. 新闻列表 ---------- */
.news-list { display: grid; gap: 20px; }
.news-item {
  display: grid; grid-template-columns: 260px 1fr; gap: 24px; background: #fff;
  border: var(--border-card); clip-path: var(--cut-tr);
  transition: transform .25s, border-color .25s, box-shadow .25s;
}
.news-item:hover { transform: translateY(-4px); border-color: var(--c-navy); box-shadow: var(--shadow-hover); }
.news-item .ph { aspect-ratio: 16 / 10; background: var(--c-navy-800); overflow: hidden; }
.news-item .ph img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.88); }
.news-item .bd { padding: 22px 24px 22px 0; display: flex; flex-direction: column; }
.news-item h3 { font-size: 19px; font-weight: 600; color: var(--c-navy); line-height: 1.4; }
.news-item .desc { font-size: 14px; color: var(--c-text-sub); margin-top: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-item .meta { margin-top: auto; padding-top: 12px; font-size: 13px; color: var(--c-steel); }
.news-type-tag { display: inline-block; font-size: 12px; color: var(--c-copper); border: 1px solid rgba(184, 115, 51, .45); padding: 1px 8px; margin-right: 10px; }

/* ---------- 16. 关于 / 联系 ---------- */
.about-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; align-items: center; }
.about-grid .pic { border: var(--border-card); }
.about-grid .pic img { filter: saturate(.9); }
.lead-para { font-size: 17px; max-width: 860px; }
.value-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.value-item { background: #fff; border: var(--border-card); padding: 26px 22px; clip-path: var(--cut-tr); }
.value-item h3 { font-size: 18px; color: var(--c-navy); }
.value-item .en { font-size: 12px; letter-spacing: .06em; text-transform: uppercase; color: var(--c-copper); margin-top: 2px; }
.value-item p { font-size: 14px; color: var(--c-text-sub); margin-top: 10px; }
.honor-list { display: flex; flex-wrap: wrap; gap: 12px; }
.honor-list li {
  background: #fff; border: var(--border-card); padding: 10px 20px; font-size: 14px;
  color: var(--c-text); clip-path: var(--cut-br);
}
.honor-list li::before { content: "◆"; color: var(--c-copper); font-size: 10px; margin-right: 8px; vertical-align: 1px; }

.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.contact-card { background: #fff; border: var(--border-card); padding: 30px 26px; clip-path: var(--cut-tr); }
.contact-card .ico { font-family: var(--font-num); font-size: 13px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--c-copper); }
.contact-card h3 { font-size: 18px; color: var(--c-navy); margin-top: 8px; }
.contact-card p { font-size: 15px; color: var(--c-text-sub); margin-top: 8px; word-break: break-all; }
.contact-card a:hover { color: var(--c-red); }
.map-block {
  background: var(--c-navy-800); color: rgba(255, 255, 255, .85); padding: 56px 40px;
  text-align: center; clip-path: var(--cut-tr); margin-top: 48px;
}
.map-block strong { display: block; font-size: 20px; color: #fff; margin-bottom: 8px; }

/* ---------- 17. 页脚 ---------- */
.site-footer { background: var(--c-navy); color: rgba(255, 255, 255, .75); margin-top: 0; }
.footer-grid {
  max-width: 1280px; margin: 0 auto; padding: 64px 24px 48px;
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px;
}
.footer-col h4 { font-size: 15px; font-weight: 700; color: #fff; letter-spacing: .06em; margin-bottom: 18px; }
.footer-col h4::after { content: ""; display: block; width: 24px; height: 3px; background: var(--c-red); margin-top: 8px; }
.footer-col p, .footer-col a { font-size: 14px; color: rgba(255, 255, 255, .7); }
.footer-col a { display: block; padding: 4px 0; }
.footer-col a:hover { color: #fff; }
.footer-brand { font-size: 18px; font-weight: 700; color: #fff; }
.footer-brand-en { font-size: 12px; letter-spacing: .04em; color: rgba(255, 255, 255, .55); margin-top: 4px; }
.footer-desc { margin-top: 14px; line-height: 1.8; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .12); }
.footer-bottom-inner {
  max-width: 1280px; margin: 0 auto; padding: 18px 24px; font-size: 13px;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px;
  color: rgba(255, 255, 255, .55);
}
.footer-bottom-inner a { color: rgba(255, 255, 255, .55); }
.footer-bottom-inner a:hover { color: #fff; }

/* ---------- 18. 悬浮组件 ---------- */
.back-top {
  position: fixed; right: 24px; bottom: 96px; z-index: 90;
  width: 46px; height: 46px; background: var(--c-navy); color: #fff; border: none;
  clip-path: var(--cut-br); font-size: 18px; line-height: 1;
  opacity: 0; visibility: hidden; transition: opacity .25s, visibility .25s, background .2s;
}
.back-top.show { opacity: 1; visibility: visible; }
.back-top:hover { background: var(--c-navy-800); }

.mobile-bar {
  display: none; position: fixed; left: 0; right: 0; bottom: 0; z-index: 95;
  background: var(--c-navy); box-shadow: 0 -2px 12px rgba(22, 40, 60, .3);
}
.mobile-bar a, .mobile-bar button {
  flex: 1; text-align: center; padding: 14px 8px; font-size: 15px; font-weight: 600;
  color: #fff; background: transparent; border: none;
}
.mobile-bar a.tel { background: var(--c-red); }

.wa-float {
  position: fixed; right: 24px; bottom: 32px; z-index: 95;
  display: none; align-items: center; gap: 8px;
  background: #25D366; color: #fff; font-size: 15px; font-weight: 600;
  padding: 12px 20px; clip-path: var(--cut-br); box-shadow: 0 4px 16px rgba(0, 0, 0, .2);
}
.wa-float.show { display: inline-flex; }

.qr-modal { position: fixed; inset: 0; z-index: 200; display: none; }
.qr-modal.active { display: block; }
.qr-modal .ovl { position: absolute; inset: 0; background: rgba(22, 40, 60, .7); }
.qr-modal .box {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  background: #fff; padding: 32px; text-align: center; clip-path: var(--cut-tr); width: min(320px, 88vw);
}
.qr-modal img { width: 200px; height: 200px; margin: 12px auto; object-fit: contain; }
.qr-modal h3 { font-size: 17px; color: var(--c-navy); }
.qr-modal p { font-size: 13px; color: var(--c-text-sub); }
.qr-modal .close { margin-top: 16px; font-size: 14px; padding: 8px 24px; }

/* ---------- 19. 动效 ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .45s ease-out, transform .45s ease-out; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* ---------- 20. 404 ---------- */
.err-page { text-align: center; padding: 120px 24px; }
.err-page .code { font-family: var(--font-num); font-size: 120px; font-weight: 700; color: var(--c-navy); line-height: 1; }
.err-page .code b { color: var(--c-red); }
.err-page p { color: var(--c-text-sub); margin: 16px 0 32px; }

/* ---------- 21. 响应式 ---------- */
@media (max-width: 1200px) {
  .grid-4, .grid-5 { grid-template-columns: repeat(3, 1fr); }
  .detail-layout { grid-template-columns: minmax(0, 1fr) 300px; gap: 32px; }
}

@media (max-width: 1024px) {
  .nav-menu { display: none; }
  .nav-burger { display: block; margin-left: auto; }
  .nav-actions .nav-cta { display: none; }
  .grid-3, .grid-4, .grid-5 { grid-template-columns: repeat(2, 1fr); }
  .process { grid-template-columns: repeat(2, 1fr); }
  .value-list { grid-template-columns: repeat(2, 1fr); }
  .detail-layout { grid-template-columns: 1fr; }
  .detail-aside { position: static; }
  .about-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root { --sec-gap: 56px; }
  body { font-size: 15px; }
  .hero { min-height: 60vh; }
  .hero h1 { font-size: 28px; }
  .page-head h1 { font-size: 26px; }
  .sec-title .en { font-size: 22px; }
  .sec-title .zh { font-size: 15px; }
  .databand .num { font-size: 40px; }
  .databand-inner { gap: 28px; padding: 48px 24px; }
  .grid-2 { grid-template-columns: 1fr; }
  .inquiry-card { padding: 32px 22px; }
  .inquiry-form { grid-template-columns: 1fr; }
  .news-item { grid-template-columns: 1fr; }
  .news-item .bd { padding: 0 20px 20px; }
  .detail-main h1 { font-size: 24px; }
  .gallery { grid-template-columns: repeat(3, 1fr); }
  /* 手机端页脚：4列→2列，标题横排不再竖排，联系方式整行 */
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px 20px; padding: 44px 22px 32px; }
  .footer-col { min-width: 0; }
  .footer-col h4 { white-space: nowrap; }
  .footer-brand-col { grid-column: 1 / -1; }
  .footer-contact-col { grid-column: 1 / -1; }
  .footer-col p, .footer-col a { word-break: break-word; overflow-wrap: anywhere; }
  /* 多列内容网格在手机端收窄 */
  .grid-3 { grid-template-columns: 1fr; }
  .grid-5 { grid-template-columns: 1fr 1fr; }
  body.has-mobile-bar { padding-bottom: 52px; }
  body.has-mobile-bar .mobile-bar { display: flex; }
  body.has-mobile-bar .back-top { bottom: 140px; }
  body.has-mobile-bar .wa-float { bottom: 76px; }
}

@media (max-width: 480px) {
  .grid-3, .grid-4, .grid-5 { grid-template-columns: 1fr; }
  .process { grid-template-columns: 1fr; }
  .value-list { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .hero .hero-cta .btn { width: 100%; }
  .databand .num { font-size: 34px; }
  .prevnext { flex-direction: column; }
  .prevnext a { max-width: 100%; }
  .gallery { grid-template-columns: repeat(2, 1fr); }
}