/* ============================================================
   镭曼激光 LaserMen · 中文企业官网（英文站镜像 · 浅色版）
   设计主题：简洁专业 · 工业科技 · 浅色明亮
   参照 www.leimancnc.com 页面结构 / 布局 / 视觉风格
   ============================================================ */

:root {
  /* 主色：工业蓝 + 激光橙点缀 */
  --primary: #0d5fd6;
  --primary-dark: #0a4bab;
  --primary-soft: #eaf2ff;
  --cyan: #12b5e5;
  --laser: #ff6a2c;          /* 激光暖色（CTA / 强调） */
  --laser-dark: #ef5a1c;

  /* 文字 */
  --ink: #0f1b2d;            /* 主标题 */
  --ink-2: #384556;          /* 正文 */
  --muted: #6b7788;          /* 次要文字 */

  /* 背景层次（浅色） */
  --bg: #ffffff;
  --bg-soft: #f4f7fb;
  --bg-soft-2: #eaf0f8;
  --navy-900: #0b1626;       /* 深色页脚 / 深底板块 */
  --navy-800: #12213a;

  /* 线条 / 效果 */
  --line: #e5eaf1;
  --line-strong: #d3dbe6;
  --white: #ffffff;

  --grad-primary: linear-gradient(135deg, #1573ef 0%, #0d5fd6 55%, #12b5e5 100%);
  --grad-hero: linear-gradient(120deg, rgba(9,20,38,.86) 0%, rgba(11,34,72,.78) 55%, rgba(9,60,120,.62) 100%);
  --grad-dark: linear-gradient(160deg, #0b1626 0%, #10233f 60%, #123258 100%);

  --shadow-sm: 0 2px 10px rgba(16, 33, 60, .06);
  --shadow-md: 0 14px 36px rgba(16, 33, 60, .10);
  --shadow-lg: 0 28px 66px rgba(16, 33, 60, .14);

  --radius: 16px;
  --radius-sm: 10px;
  --maxw: 1240px;
  --ease: cubic-bezier(.22, .61, .36, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink-2);
  background: var(--bg);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; transition: color .25s var(--ease); }
img { max-width: 100%; display: block; }
ul { list-style: none; }
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ===== 通用板块 ===== */
.section { padding: 92px 0; }
.section-soft { background: var(--bg-soft); }
.section-dark { background: var(--grad-dark); color: #fff; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase;
  color: var(--primary); margin-bottom: 16px;
}
.eyebrow::before { content: ""; width: 26px; height: 2px; background: var(--laser); }
.section-dark .eyebrow { color: var(--cyan); }
.section-head { max-width: 780px; margin-bottom: 54px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head.center .eyebrow { justify-content: center; }
h1, h2, h3 { line-height: 1.25; color: var(--ink); font-weight: 800; }
.section-dark h1, .section-dark h2, .section-dark h3 { color: #fff; }
.section-head h2 { font-size: clamp(28px, 4vw, 46px); margin-bottom: 16px; letter-spacing: -.01em; }
.section-head p { color: var(--muted); font-size: 17px; }
.section-dark .section-head p { color: rgba(255,255,255,.72); }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 15px; font-weight: 700; cursor: pointer;
  padding: 14px 30px; border-radius: 999px; border: 1px solid transparent;
  transition: all .3s var(--ease); white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; }
.btn-primary { background: var(--laser); color: #fff; box-shadow: 0 10px 24px rgba(255,106,44,.30); }
.btn-primary:hover { background: var(--laser-dark); transform: translateY(-2px); box-shadow: 0 16px 34px rgba(255,106,44,.40); }
.btn-blue { background: var(--primary); color: #fff; box-shadow: 0 10px 24px rgba(13,95,214,.28); }
.btn-blue:hover { background: var(--primary-dark); transform: translateY(-2px); }
.btn-ghost { background: rgba(255,255,255,.10); color: #fff; border-color: rgba(255,255,255,.5); }
.btn-ghost:hover { background: rgba(255,255,255,.20); border-color: #fff; }
.btn-outline { background: #fff; color: var(--ink); border-color: var(--line-strong); box-shadow: var(--shadow-sm); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }

/* ============================================================
   顶部导航
   ============================================================ */
.topbar { background: var(--navy-900); color: rgba(255,255,255,.72); font-size: 13px; }
.topbar-inner { display: flex; align-items: center; justify-content: space-between; height: 40px; }
.topbar a { color: rgba(255,255,255,.72); }
.topbar a:hover { color: #fff; }
.topbar .tb-left { display: flex; gap: 22px; }
.topbar .tb-left span, .topbar .tb-left a { display: inline-flex; align-items: center; gap: 6px; }
.topbar svg { width: 14px; height: 14px; color: var(--cyan); }
.topbar .tb-right { display: flex; gap: 14px; align-items: center; }

.header { position: sticky; top: 0; z-index: 100; background: #fff; box-shadow: var(--shadow-sm); transition: box-shadow .3s var(--ease); }
.header.scrolled { box-shadow: 0 6px 22px rgba(16,33,60,.12); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 74px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 42px; height: 42px; border-radius: 11px; flex: none;
  background: var(--grad-primary); display: grid; place-items: center;
  box-shadow: 0 6px 16px rgba(13,95,214,.34);
}
.brand-mark svg { width: 23px; height: 23px; }
.brand-txt { display: flex; flex-direction: column; line-height: 1.12; }
.brand-name { font-size: 20px; font-weight: 900; color: var(--ink); letter-spacing: .5px; }
.brand-sub { font-size: 11px; letter-spacing: 3px; color: var(--muted); text-transform: uppercase; }

.menu { display: flex; align-items: center; gap: 30px; }
.menu > a, .has-submenu > a {
  font-size: 15.5px; font-weight: 600; color: var(--ink); position: relative; padding: 26px 0;
  display: inline-flex; align-items: center; gap: 5px;
}
.menu > a::after, .has-submenu > a::after {
  content: ""; position: absolute; left: 0; bottom: 20px; height: 2.5px; width: 0;
  background: var(--laser); transition: width .3s var(--ease);
}
.menu > a:hover::after, .menu > a.active::after,
.has-submenu:hover > a::after, .has-submenu.active > a::after { width: 100%; }
.menu > a:hover, .has-submenu:hover > a { color: var(--primary); }

/* 产品下拉 */
.has-submenu { position: relative; }
.has-submenu .caret { font-size: 10px; opacity: .7; transition: transform .2s var(--ease); }
.has-submenu:hover .caret { transform: rotate(180deg); }
.submenu {
  position: absolute; top: 100%; left: 50%; transform: translateX(-50%) translateY(8px);
  min-width: 250px; background: #fff; border: 1px solid var(--line); border-radius: 14px;
  box-shadow: var(--shadow-lg); padding: 10px; opacity: 0; visibility: hidden; transition: all .22s var(--ease); z-index: 60;
}
.has-submenu:hover .submenu { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(6px); }
.submenu li a {
  display: block; padding: 11px 16px; color: var(--ink-2); font-size: 14.5px; font-weight: 500;
  white-space: nowrap; border-radius: 9px; transition: all .15s;
}
.submenu li a:hover { background: var(--primary-soft); color: var(--primary); }

.nav-cta { display: flex; align-items: center; gap: 16px; }
.nav-phone { display: flex; align-items: center; gap: 8px; font-weight: 800; color: var(--ink); font-size: 16px; }
.nav-phone svg { width: 20px; height: 20px; color: var(--laser); }
.nav-phone .np-sub { display: block; font-size: 11px; font-weight: 500; color: var(--muted); }
.burger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; }
.burger span { width: 24px; height: 2px; background: var(--ink); transition: .3s; border-radius: 2px; }

/* ============================================================
   Hero 全屏轮播（英文站首屏样式）
   ============================================================ */
.hero { position: relative; height: clamp(560px, 82vh, 760px); overflow: hidden; background: var(--navy-900); }
.hero-slide {
  position: absolute; inset: 0; opacity: 0; visibility: hidden;
  transition: opacity 1s var(--ease), visibility 1s;
}
.hero-slide.is-active { opacity: 1; visibility: visible; }
.hero-slide .hs-bg { position: absolute; inset: 0; }
.hero-slide .hs-bg img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.08); transition: transform 7s linear; }
.hero-slide.is-active .hs-bg img { transform: scale(1); }
.hero-slide .hs-bg::after { content: ""; position: absolute; inset: 0; background: var(--grad-hero); }
.hero-slide .hs-inner { position: relative; z-index: 3; height: 100%; display: flex; align-items: center; }
.hs-content { max-width: 680px; color: #fff; }
.hs-tag {
  display: inline-flex; align-items: center; gap: 8px; margin-bottom: 20px;
  padding: 7px 16px; border-radius: 999px; font-size: 13px; font-weight: 700; letter-spacing: 1px;
  background: rgba(255,106,44,.16); border: 1px solid rgba(255,106,44,.45); color: #ffb995;
}
.hs-content h2 { font-size: clamp(30px, 4.6vw, 54px); font-weight: 900; color: #fff; line-height: 1.12; letter-spacing: -.01em; margin-bottom: 20px; text-shadow: 0 2px 24px rgba(0,0,0,.3); }
.hs-content h2 .hl { color: var(--cyan); }
.hs-content p { font-size: clamp(16px, 1.7vw, 19px); color: rgba(255,255,255,.86); margin-bottom: 32px; max-width: 560px; }
.hs-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* Hero 分页 01-04 */
.hero-nav { position: absolute; left: 0; right: 0; bottom: 0; z-index: 6; }
.hero-nav-inner { display: flex; gap: 0; border-top: 1px solid rgba(255,255,255,.16); }
.hn-item {
  flex: 1; padding: 20px 22px; cursor: pointer; text-align: left; color: rgba(255,255,255,.6);
  border-left: 1px solid rgba(255,255,255,.12); background: rgba(9,18,34,.34); transition: all .3s var(--ease);
  position: relative; overflow: hidden;
}
.hn-item:first-child { border-left: none; }
.hn-item:hover { background: rgba(9,18,34,.6); color: #fff; }
.hn-item.is-active { background: rgba(13,95,214,.5); color: #fff; }
.hn-item .hn-num { font-size: 15px; font-weight: 800; color: var(--laser); }
.hn-item .hn-txt { font-size: 13.5px; font-weight: 600; margin-top: 4px; display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.hn-item::after { content: ""; position: absolute; left: 0; bottom: 0; height: 3px; width: 0; background: var(--laser); }
.hn-item.is-active::after { width: 100%; transition: width 5.5s linear; }
.hero-arrow { position: absolute; top: 42%; transform: translateY(-50%); z-index: 6; width: 46px; height: 46px; border-radius: 50%; border: 1px solid rgba(255,255,255,.4); background: rgba(9,18,34,.4); color: #fff; font-size: 22px; cursor: pointer; display: grid; place-items: center; transition: all .25s var(--ease); }
.hero-arrow:hover { background: var(--laser); border-color: var(--laser); }
.hero-prev { left: 24px; } .hero-next { right: 24px; }

/* ===== 信任条 ===== */
.trust-bar { background: #fff; border-bottom: 1px solid var(--line); padding: 26px 0; }
.trust-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.trust-inner .item { display: flex; align-items: center; gap: 12px; font-size: 15px; font-weight: 700; color: var(--ink); }
.trust-inner .item svg { width: 26px; height: 26px; color: var(--primary); flex: none; }
.trust-inner .item span small { display: block; font-size: 12px; font-weight: 500; color: var(--muted); }

/* ============================================================
   品牌语 + 企业文化（Business Policy / Enterprise Spirit / Service Tenet）
   ============================================================ */
.brandline { text-align: center; max-width: 900px; margin: 0 auto 56px; }
.brandline h2 { font-size: clamp(26px, 3.6vw, 44px); margin-bottom: 20px; }
.brandline h2 .hl { color: var(--primary); }
.brandline p { color: var(--muted); font-size: 17px; }
.culture-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.culture-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 36px 30px;
  box-shadow: var(--shadow-sm); transition: all .3s var(--ease); position: relative; overflow: hidden;
}
.culture-card::before { content: ""; position: absolute; top: 0; left: 0; width: 100%; height: 4px; background: var(--grad-primary); transform: scaleX(0); transform-origin: left; transition: transform .35s var(--ease); }
.culture-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-6px); }
.culture-card:hover::before { transform: scaleX(1); }
.culture-ico { width: 58px; height: 58px; border-radius: 14px; display: grid; place-items: center; background: var(--primary-soft); color: var(--primary); margin-bottom: 20px; }
.culture-ico svg { width: 30px; height: 30px; }
.culture-card h3 { font-size: 20px; margin-bottom: 12px; }
.culture-card p { color: var(--muted); font-size: 15px; }

/* ============================================================
   产品卡片网格
   ============================================================ */
.prod-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.prod-card {
  position: relative; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden; transition: all .35s var(--ease);
  display: flex; flex-direction: column; box-shadow: var(--shadow-sm);
}
.prod-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(13,95,214,.3); }
.prod-media { height: 220px; position: relative; overflow: hidden; background: var(--bg-soft); }
.prod-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s var(--ease); }
.prod-card:hover .prod-media img { transform: scale(1.07); }
.prod-badge { position: absolute; top: 14px; left: 14px; z-index: 3; font-size: 12px; font-weight: 800; color: #fff; background: var(--laser); padding: 5px 13px; border-radius: 999px; box-shadow: 0 4px 12px rgba(255,106,44,.4); }
.prod-body { padding: 26px 24px 28px; display: flex; flex-direction: column; flex: 1; }
.prod-body h3 { font-size: 20px; margin-bottom: 10px; }
.prod-body p { color: var(--muted); font-size: 15px; margin-bottom: 18px; flex: 1; }
.prod-specs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.prod-specs span { font-size: 12px; color: var(--primary); background: var(--primary-soft); padding: 5px 12px; border-radius: 8px; font-weight: 700; }
.prod-link { display: inline-flex; align-items: center; gap: 7px; font-weight: 800; color: var(--primary); font-size: 15px; }
.prod-link svg { width: 16px; height: 16px; transition: transform .3s; }
.prod-card:hover .prod-link svg { transform: translateX(4px); }

/* 产品类目导航（集合页吸顶） */
.cat-nav { position: sticky; top: 74px; z-index: 40; background: rgba(255,255,255,.92); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.cat-nav-inner { display: flex; flex-wrap: wrap; gap: 10px; padding: 14px 0; }
.cat-pill { padding: 8px 18px; border-radius: 999px; background: var(--bg-soft); color: var(--ink-2); font-size: 14px; font-weight: 700; transition: all .2s; }
.cat-pill:hover, .cat-pill.active { background: var(--primary); color: #fff; }
.prod-detail { scroll-margin-top: 150px; }

/* ============================================================
   为什么选择我们
   ============================================================ */
.why-wrap { display: grid; grid-template-columns: 1fr 1.05fr; gap: 56px; align-items: center; }
.why-media { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-lg); position: relative; }
.why-media img { width: 100%; height: 100%; object-fit: cover; min-height: 420px; }
.why-media .wm-badge { position: absolute; left: 22px; bottom: 22px; background: var(--laser); color: #fff; border-radius: 14px; padding: 16px 22px; box-shadow: 0 14px 34px rgba(255,106,44,.4); }
.why-media .wm-badge .n { font-size: 30px; font-weight: 900; line-height: 1; }
.why-media .wm-badge .t { font-size: 13px; opacity: .92; }
.feature-list { display: grid; gap: 20px; }
.feature { display: flex; gap: 18px; padding: 22px; border-radius: var(--radius); background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow-sm); transition: all .3s var(--ease); }
.feature:hover { box-shadow: var(--shadow-md); transform: translateX(6px); border-color: rgba(13,95,214,.25); }
.feature-ico { flex: none; width: 54px; height: 54px; border-radius: 13px; display: grid; place-items: center; background: var(--grad-primary); color: #fff; box-shadow: 0 8px 18px rgba(13,95,214,.28); }
.feature-ico svg { width: 27px; height: 27px; }
.feature h3 { font-size: 18px; margin-bottom: 6px; }
.feature p { color: var(--muted); font-size: 14.5px; }

/* ============================================================
   数据统计带
   ============================================================ */
.stats-band { background: var(--grad-dark); color: #fff; position: relative; overflow: hidden; }
.stats-band .bg-grid { position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px); background-size: 54px 54px; mask-image: radial-gradient(ellipse 70% 80% at 50% 50%, #000, transparent 80%); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; position: relative; z-index: 2; text-align: center; }
.stat-item .num { font-size: clamp(44px, 6vw, 74px); font-weight: 900; line-height: 1; color: #fff; }
.stat-item .num span.suffix { color: var(--cyan); }
.stat-item .unit { color: var(--cyan); font-size: 16px; font-weight: 700; margin-top: 4px; }
.stat-item .lbl { margin-top: 12px; color: rgba(255,255,255,.72); font-size: 15px; }

/* ============================================================
   应用行业
   ============================================================ */
.ind-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.ind-card { padding: 30px 22px; border-radius: var(--radius); background: #fff; border: 1px solid var(--line); text-align: center; transition: all .3s var(--ease); box-shadow: var(--shadow-sm); }
.ind-card:hover { border-color: var(--primary); box-shadow: var(--shadow-md); transform: translateY(-4px); }
.ind-card .ico { width: 54px; height: 54px; margin: 0 auto 16px; color: var(--primary); }
.ind-card h4 { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.ind-card p { font-size: 13px; color: var(--muted); }

/* ============================================================
   展会实况（Exhibition Scene）
   ============================================================ */
.exhibit-wrap { display: grid; grid-template-columns: 1.15fr 1fr; gap: 48px; align-items: center; }
.exhibit-media { position: relative; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-lg); }
.exhibit-media img { width: 100%; height: 100%; object-fit: cover; min-height: 380px; }
.exhibit-body h3 { font-size: clamp(22px, 2.6vw, 32px); margin-bottom: 16px; }
.exhibit-body > p { color: var(--muted); font-size: 16px; margin-bottom: 24px; }
.exhibit-tags { display: flex; flex-wrap: wrap; gap: 12px; }
.exhibit-tags .t { font-size: 14px; font-weight: 700; color: var(--primary); background: var(--primary-soft); padding: 9px 18px; border-radius: 999px; }

/* ============================================================
   荣誉资质
   ============================================================ */
.honor-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.honor-card { text-align: center; padding: 36px 22px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); transition: all .3s; box-shadow: var(--shadow-sm); }
.honor-card:hover { box-shadow: var(--shadow-md); transform: translateY(-5px); border-color: rgba(13,95,214,.25); }
.honor-card .ico { width: 54px; height: 54px; margin: 0 auto 16px; color: var(--laser); }
.honor-card h4 { font-size: 16px; margin-bottom: 6px; color: var(--ink); }
.honor-card p { font-size: 13px; color: var(--muted); }

/* ============================================================
   服务流程
   ============================================================ */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; counter-reset: step; }
.step { position: relative; padding: 34px 26px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); transition: all .3s var(--ease); }
.step:hover { box-shadow: var(--shadow-md); transform: translateY(-5px); border-color: rgba(13,95,214,.25); }
.step::before { counter-increment: step; content: "0" counter(step); font-size: 46px; font-weight: 900; color: var(--primary-soft); line-height: 1; display: block; margin-bottom: 12px; }
.step h4 { font-size: 18px; margin-bottom: 8px; }
.step p { font-size: 14px; color: var(--muted); }

/* ============================================================
   新闻 / 博客
   ============================================================ */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.news-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: all .3s var(--ease); display: flex; flex-direction: column; box-shadow: var(--shadow-sm); }
.news-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-5px); }
.news-media { height: 200px; overflow: hidden; background: var(--bg-soft); }
.news-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s var(--ease); }
.news-card:hover .news-media img { transform: scale(1.06); }
.news-body { padding: 24px; display: flex; flex-direction: column; flex: 1; }
.news-date { font-size: 13px; color: var(--primary); font-weight: 700; margin-bottom: 10px; }
.news-body h3 { font-size: 17px; margin-bottom: 10px; line-height: 1.5; color: var(--ink); }
.news-body p { font-size: 14px; color: var(--muted); margin-bottom: 16px; flex: 1; }

/* ============================================================
   客户评价
   ============================================================ */
.testi-wrap { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
.testi-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 36px 34px; box-shadow: var(--shadow-sm); position: relative; }
.testi-card .quote { font-size: 60px; line-height: 1; color: var(--primary-soft); font-family: Georgia, serif; position: absolute; top: 20px; right: 28px; }
.testi-card p { font-size: 16px; color: var(--ink-2); margin-bottom: 22px; position: relative; z-index: 2; }
.testi-who { display: flex; align-items: center; gap: 14px; }
.testi-who .av { width: 48px; height: 48px; border-radius: 50%; background: var(--grad-primary); display: grid; place-items: center; color: #fff; font-weight: 800; flex: none; }
.testi-who b { display: block; font-size: 15px; color: var(--ink); }
.testi-who span { font-size: 13px; color: var(--muted); }
.testi-stars { color: var(--laser); margin-bottom: 14px; letter-spacing: 2px; }

/* ============================================================
   CTA 横幅
   ============================================================ */
.cta-band { background: var(--grad-primary); color: #fff; position: relative; overflow: hidden; }
.cta-band .bg-grid { position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.08) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.08) 1px, transparent 1px); background-size: 48px 48px; opacity: .5; }
.cta-inner { position: relative; z-index: 2; text-align: center; max-width: 760px; margin: 0 auto; }
.cta-inner h2 { font-size: clamp(26px, 3.6vw, 42px); color: #fff; margin-bottom: 16px; }
.cta-inner p { color: rgba(255,255,255,.9); font-size: 18px; margin-bottom: 32px; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.cta-band .btn-ghost { border-color: #fff; }

/* ===== 发展历程 时间轴 ===== */
.timeline { max-width: 880px; margin: 0 auto; position: relative; }
.timeline::before { content: ""; position: absolute; left: 108px; top: 10px; bottom: 10px; width: 2px; background: linear-gradient(var(--primary), var(--cyan)); opacity: .35; }
.tl-item { display: grid; grid-template-columns: 92px 1fr; gap: 28px; padding: 14px 0; position: relative; }
.tl-year { font-weight: 800; font-size: 21px; color: var(--primary); text-align: right; padding-top: 1px; letter-spacing: -.01em; }
.tl-body { position: relative; padding-left: 36px; }
.tl-body::before { content: ""; position: absolute; left: -19px; top: 7px; width: 14px; height: 14px; border-radius: 50%; background: var(--primary); border: 3px solid #fff; box-shadow: 0 0 0 3px rgba(13,95,214,.22); }
.tl-body h4 { font-size: 17px; margin-bottom: 4px; color: var(--ink); }
.tl-body p { color: var(--muted); font-size: 15px; line-height: 1.65; }

/* ============================================================
   页脚
   ============================================================ */
.footer { background: var(--navy-900); color: rgba(255,255,255,.66); padding: 68px 0 0; }
.footer-top { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.4fr; gap: 40px; padding-bottom: 46px; border-bottom: 1px solid rgba(255,255,255,.1); }
.footer .brand-name { color: #fff; }
.footer .brand-sub { color: rgba(255,255,255,.55); }
.footer-about { max-width: 330px; }
.footer-about p { margin: 18px 0; font-size: 14px; line-height: 1.8; }
.footer-social { display: flex; gap: 12px; }
.footer-social a { width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center; background: rgba(255,255,255,.08); transition: all .3s; }
.footer-social a:hover { background: var(--grad-primary); transform: translateY(-3px); }
.footer-social svg { width: 18px; height: 18px; color: #fff; }
.footer-col h4 { color: #fff; font-size: 16px; margin-bottom: 20px; }
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul a { font-size: 14px; }
.footer-col ul a:hover { color: var(--cyan); }
.footer-contact li { display: flex; gap: 12px; margin-bottom: 16px; font-size: 14px; align-items: flex-start; }
.footer-contact svg { width: 18px; height: 18px; color: var(--cyan); flex: none; margin-top: 3px; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding: 22px 0; font-size: 13px; flex-wrap: wrap; gap: 10px; }
.footer-bottom a:hover { color: var(--cyan); }

/* ============================================================
   子页面 · 页头
   ============================================================ */
.page-hero { background: var(--grad-dark); color: #fff; padding: 66px 0 60px; position: relative; overflow: hidden; }
.page-hero .bg-grid { position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px); background-size: 50px 50px; mask-image: radial-gradient(ellipse 80% 70% at 60% 40%, #000, transparent 78%); }
.page-hero .container { position: relative; z-index: 2; }
.crumbs { font-size: 14px; color: rgba(255,255,255,.62); margin-bottom: 16px; }
.crumbs a:hover { color: var(--cyan); }
.crumbs span { margin: 0 8px; opacity: .6; }
.page-hero h1 { font-size: clamp(30px, 4.4vw, 48px); color: #fff; margin-bottom: 14px; }
.page-hero p { font-size: 18px; color: rgba(255,255,255,.78); max-width: 660px; }

/* ===== 关于页 ===== */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.about-media { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-lg); }
.about-media img { width: 100%; height: 100%; object-fit: cover; min-height: 420px; }
.about-body h2 { font-size: clamp(24px, 3vw, 36px); margin-bottom: 18px; }
.about-body p { color: var(--ink-2); margin-bottom: 16px; font-size: 16px; }
.value-list { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 26px; }
.value-item { display: flex; gap: 12px; align-items: flex-start; }
.value-item svg { width: 22px; height: 22px; color: var(--primary); flex: none; margin-top: 3px; }
.value-item b { display: block; font-size: 15px; color: var(--ink); }
.value-item span { font-size: 13px; color: var(--muted); }

/* ============================================================
   产品详情页
   ============================================================ */
.pd-top { display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: flex-start; }
.pd-gallery { position: sticky; top: 96px; }
.pd-main { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); background: var(--bg-soft); box-shadow: var(--shadow-md); aspect-ratio: 4/3; }
.pd-main img { width: 100%; height: 100%; object-fit: cover; }
.pd-thumbs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 14px; }
.pd-thumb { border-radius: 10px; overflow: hidden; border: 2px solid var(--line); aspect-ratio: 4/3; cursor: pointer; background: var(--bg-soft); transition: border-color .25s var(--ease); }
.pd-thumb img { width: 100%; height: 100%; object-fit: cover; }
.pd-thumb.active, .pd-thumb:hover { border-color: var(--primary); }
.pd-info .eyebrow { margin-bottom: 14px; }
.pd-info h1 { font-size: clamp(26px, 3.2vw, 38px); margin-bottom: 14px; }
.pd-lead { color: var(--muted); font-size: 16px; margin-bottom: 22px; }
.pd-highlights { display: grid; gap: 12px; margin-bottom: 26px; }
.pd-highlights li { display: flex; gap: 12px; align-items: flex-start; font-size: 15px; color: var(--ink-2); }
.pd-highlights svg { width: 20px; height: 20px; color: var(--primary); flex-shrink: 0; margin-top: 2px; }
.pd-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 8px; }
.pd-actions .hot { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); font-size: 14px; }
.pd-actions .hot strong { color: var(--ink); }
.pd-section { margin-top: 64px; }
.pd-section .sec-title { display: flex; align-items: center; gap: 12px; font-size: 22px; font-weight: 800; margin-bottom: 24px; color: var(--ink); }
.pd-section .sec-title::before { content: ""; width: 6px; height: 22px; border-radius: 3px; background: var(--grad-primary); }
.pd-desc p { color: var(--ink-2); font-size: 16px; margin-bottom: 14px; }
.pd-features { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.pd-feature { display: flex; gap: 14px; padding: 22px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: #fff; box-shadow: var(--shadow-sm); transition: all .3s var(--ease); }
.pd-feature:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.pd-feature .n { font-size: 20px; font-weight: 800; color: var(--primary); line-height: 1.2; }
.pd-feature h4 { font-size: 16px; margin-bottom: 6px; color: var(--ink); }
.pd-feature p { font-size: 14px; color: var(--muted); }
.pd-spec { width: 100%; border-collapse: collapse; border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden; }
.pd-spec tr:nth-child(odd) { background: var(--bg-soft); }
.pd-spec td { padding: 14px 20px; font-size: 15px; border-bottom: 1px solid var(--line); }
.pd-spec td:first-child { color: var(--muted); width: 34%; font-weight: 600; }
.pd-spec td:last-child { color: var(--ink); }
.pd-shots { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.pd-shots img { width: 100%; border-radius: var(--radius-sm); border: 1px solid var(--line); box-shadow: var(--shadow-sm); }
.related-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.related-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: all .3s var(--ease); box-shadow: var(--shadow-sm); }
.related-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.related-card .thumb { aspect-ratio: 4/3; overflow: hidden; background: var(--bg-soft); }
.related-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s var(--ease); }
.related-card:hover .thumb img { transform: scale(1.06); }
.related-card .rc-body { padding: 16px 18px; }
.related-card h4 { font-size: 15px; margin-bottom: 6px; color: var(--ink); }
.related-card p { font-size: 13px; color: var(--muted); }

/* ============================================================
   新闻列表 & 文章
   ============================================================ */
.news-tabs { display: flex; gap: 12px; margin-bottom: 40px; flex-wrap: wrap; }
.news-tab { padding: 10px 24px; border-radius: 999px; border: 1px solid var(--line); font-size: 15px; font-weight: 700; color: var(--ink-2); cursor: pointer; background: #fff; transition: all .25s var(--ease); }
.news-tab.active, .news-tab:hover { background: var(--primary); color: #fff; border-color: transparent; }
.news-list { display: grid; gap: 24px; }
.nl-item { display: grid; grid-template-columns: 320px 1fr; gap: 28px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: all .3s var(--ease); box-shadow: var(--shadow-sm); }
.nl-item:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.nl-media { overflow: hidden; background: var(--bg-soft); }
.nl-media img { width: 100%; height: 100%; object-fit: cover; min-height: 210px; transition: transform .5s var(--ease); }
.nl-item:hover .nl-media img { transform: scale(1.06); }
.nl-body { padding: 28px 30px 28px 0; display: flex; flex-direction: column; }
.nl-cat { display: inline-flex; width: fit-content; font-size: 12px; font-weight: 700; color: var(--primary); background: var(--primary-soft); padding: 4px 13px; border-radius: 999px; margin-bottom: 14px; }
.nl-body h3 { font-size: 20px; margin-bottom: 12px; line-height: 1.4; color: var(--ink); }
.nl-body p { font-size: 15px; color: var(--muted); margin-bottom: 18px; flex: 1; }
.nl-meta { display: flex; align-items: center; gap: 16px; font-size: 13px; color: var(--muted); }
.nl-meta .read { color: var(--primary); font-weight: 700; display: inline-flex; align-items: center; gap: 6px; }
.nl-meta .read svg { width: 16px; height: 16px; }

.article-wrap { display: grid; grid-template-columns: 1fr 300px; gap: 56px; align-items: flex-start; }
.article-head { border-bottom: 1px solid var(--line); padding-bottom: 24px; margin-bottom: 32px; }
.article-head h1 { font-size: clamp(24px, 3vw, 34px); margin-bottom: 16px; line-height: 1.35; }
.article-meta { display: flex; gap: 18px; font-size: 14px; color: var(--muted); }
.article-body { font-size: 16px; color: var(--ink-2); line-height: 1.9; }
.article-body h2 { font-size: 21px; margin: 34px 0 14px; color: var(--ink); }
.article-body h3 { font-size: 17px; margin: 24px 0 10px; color: var(--ink); }
.article-body p { margin-bottom: 16px; }
.article-body img { border-radius: var(--radius-sm); margin: 20px 0; border: 1px solid var(--line); box-shadow: var(--shadow-sm); }
.article-body ul.dot { margin: 10px 0 20px; display: grid; gap: 10px; }
.article-body ul.dot li { position: relative; padding-left: 22px; }
.article-body ul.dot li::before { content: ""; position: absolute; left: 4px; top: 11px; width: 7px; height: 7px; border-radius: 50%; background: var(--grad-primary); }
.article-nav { display: flex; justify-content: space-between; gap: 16px; margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--line); font-size: 14px; }
.article-nav a { color: var(--muted); }
.article-nav a:hover { color: var(--primary); }
.aside-box { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; margin-bottom: 24px; box-shadow: var(--shadow-sm); }
.aside-box.sticky { position: sticky; top: 96px; }
.aside-box h4 { font-size: 16px; margin-bottom: 16px; display: flex; align-items: center; gap: 10px; color: var(--ink); }
.aside-box h4::before { content: ""; width: 5px; height: 18px; border-radius: 3px; background: var(--grad-primary); }
.aside-list { display: grid; gap: 14px; }
.aside-list a { display: flex; gap: 12px; align-items: center; }
.aside-list .t { font-size: 14px; color: var(--ink-2); line-height: 1.5; transition: color .2s var(--ease); }
.aside-list a:hover .t { color: var(--primary); }
.aside-list .th { width: 66px; height: 50px; border-radius: 8px; overflow: hidden; flex-shrink: 0; background: var(--bg-soft); }
.aside-list .th img { width: 100%; height: 100%; object-fit: cover; }

/* ===== 联系页 ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 48px; align-items: stretch; }
.contact-info-card { background: var(--grad-dark); color: #fff; border-radius: var(--radius); padding: 38px 34px; position: relative; overflow: hidden; display: flex; flex-direction: column; justify-content: center; }
.contact-info-card h3 { color: #fff; font-size: 24px; margin-bottom: 10px; }
.contact-info-card > p { color: rgba(255,255,255,.75); margin-bottom: 22px; }
.contact-list li { display: flex; gap: 16px; margin-bottom: 18px; align-items: flex-start; }
.contact-list .ico { width: 46px; height: 46px; border-radius: 12px; background: rgba(255,255,255,.1); display: grid; place-items: center; flex: none; }
.contact-list .ico svg { width: 20px; height: 20px; color: var(--cyan); }
.contact-list .t { font-size: 13px; color: rgba(255,255,255,.6); margin-bottom: 3px; }
.contact-list .v { font-size: 16px; font-weight: 600; color: #fff; }
.form-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 32px; box-shadow: var(--shadow-md); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { margin-bottom: 20px; }
.field label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 8px; color: var(--ink); }
.field input, .field textarea, .field select { width: 100%; padding: 13px 16px; border: 1px solid var(--line-strong); border-radius: var(--radius-sm); font-size: 15px; font-family: inherit; color: var(--ink); background: #fff; transition: all .25s; }
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 4px rgba(13,95,214,.12); }
.field textarea { resize: vertical; min-height: 120px; }
.form-note { font-size: 13px; color: var(--muted); margin-top: 14px; text-align: center; }
.field .req { color: var(--laser); margin-left: 2px; }
.field .err { display: block; min-height: 16px; margin-top: 6px; font-size: 12.5px; color: #e23b3b; }
.field.invalid input, .field.invalid textarea, .field.invalid select { border-color: #e23b3b; box-shadow: 0 0 0 4px rgba(226,59,59,.10); }
.btn-block { width: 100%; justify-content: center; }
.btn-lg { padding: 16px 30px; font-size: 16px; }

/* 表单错误横幅 */
.form-alert { margin-top: 16px; padding: 14px 16px; border-radius: var(--radius-sm); font-size: 14px; line-height: 1.6; }
.form-alert.error { background: #fdecec; color: #c0222a; border: 1px solid #f6c5c5; }
.form-alert.warn { background: #fff6e6; color: #95610a; border: 1px solid #f3d79a; }

/* 提交成功面板 */
.form-success { text-align: center; padding: 18px 8px; animation: fadeUp .4s ease both; }
.form-success .fs-ico { width: 64px; height: 64px; margin: 0 auto 16px; border-radius: 50%; display: grid; place-items: center; font-size: 32px; font-weight: 800; color: #fff; background: linear-gradient(135deg, var(--primary), #2f86ff); box-shadow: 0 12px 28px rgba(13,95,214,.32); }
.form-success h3 { font-size: 22px; margin-bottom: 10px; color: var(--ink); }
.form-success p { color: var(--muted); font-size: 15px; line-height: 1.7; margin-bottom: 8px; }
.form-success .fs-sub { margin-bottom: 22px; }
.form-success .fs-sub a { color: var(--primary); font-weight: 700; }

@keyframes fadeUp { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }

/* ===== FAQ ===== */
.faq-list { max-width: 880px; margin: 0 auto; }
.faq-item { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); margin-bottom: 14px; overflow: hidden; transition: box-shadow .3s; }
.faq-item.open { box-shadow: var(--shadow-md); }
.faq-q { display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 22px 26px; cursor: pointer; font-weight: 700; font-size: 17px; color: var(--ink); }
.faq-q .plus { flex: none; width: 26px; height: 26px; position: relative; transition: transform .3s; }
.faq-q .plus::before, .faq-q .plus::after { content: ""; position: absolute; background: var(--primary); border-radius: 2px; }
.faq-q .plus::before { left: 50%; top: 4px; bottom: 4px; width: 2px; transform: translateX(-50%); }
.faq-q .plus::after { top: 50%; left: 4px; right: 4px; height: 2px; transform: translateY(-50%); }
.faq-item.open .plus { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .35s var(--ease); }
.faq-a-inner { padding: 0 26px 24px; color: var(--muted); font-size: 15px; line-height: 1.8; }

/* ===== 语言切换 ===== */
.lang-switch {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 14px; font-weight: 800; letter-spacing: .5px;
  color: var(--ink); padding: 9px 15px; border-radius: 999px;
  border: 1px solid var(--line-strong); background: #fff; transition: all .25s var(--ease);
}
.lang-switch:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-1px); }
.lang-switch .ls-flag { width: 18px; height: 18px; border-radius: 50%; background: var(--grad-primary); display: grid; place-items: center; font-size: 10px; color: #fff; font-weight: 900; }
.lang-switch .ls-txt { font-size: 13px; }

/* 应用行业图标尺寸 */
.ind-card .ico svg { width: 30px; height: 30px; }
.ind-card .ico { background: var(--primary-soft); border-radius: 14px; display: grid; place-items: center; }

/* 客户评价 三列变体 */
.testi-wrap.cols-3 { grid-template-columns: repeat(3, 1fr); }
.testi-card .who-region { display: block; font-size: 12px; color: var(--primary); font-weight: 700; margin-top: 2px; }

/* 返回顶部 */
.back-top {
  position: fixed; right: 26px; bottom: 26px; z-index: 90;
  width: 46px; height: 46px; border-radius: 50%;
  background: var(--grad-primary); color: #fff;
  display: grid; place-items: center; cursor: pointer;
  box-shadow: 0 12px 28px rgba(13,95,214,.38);
  opacity: 0; visibility: hidden; transform: translateY(14px); transition: all .3s var(--ease);
}
.back-top.show { opacity: 1; visibility: visible; transform: none; }
.back-top:hover { transform: translateY(-3px); }
.back-top svg { width: 20px; height: 20px; }

/* ===== 动画 ===== */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 992px) {
  .prod-grid, .news-grid { grid-template-columns: repeat(2, 1fr); }
  .culture-grid { grid-template-columns: 1fr; }
  .why-wrap, .exhibit-wrap, .about-grid, .contact-grid, .testi-wrap, .testi-wrap.cols-3 { grid-template-columns: 1fr; gap: 32px; }
  .stats-grid, .ind-grid, .steps, .honor-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .pd-top { grid-template-columns: 1fr; gap: 32px; }
  .pd-gallery { position: static; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .article-wrap { grid-template-columns: 1fr; gap: 32px; }
  .aside-box.sticky { position: static; }
  .hn-item .hn-txt { display: none; }
}
@media (max-width: 768px) {
  .section { padding: 60px 0; }
  .topbar { display: none; }
  .menu, .nav-phone { display: none; }
  .burger { display: flex; }
  .menu.mobile-open {
    display: flex; position: absolute; top: 74px; left: 0; right: 0; flex-direction: column;
    background: #fff; padding: 16px 24px; gap: 2px; box-shadow: var(--shadow-md); border-top: 1px solid var(--line);
  }
  .menu.mobile-open > a, .menu.mobile-open .has-submenu > a { padding: 13px 0; width: 100%; border-bottom: 1px solid var(--bg-soft-2); }
  .menu.mobile-open > a::after, .menu.mobile-open .has-submenu > a::after { display: none; }
  .menu.mobile-open .has-submenu { position: static; }
  .menu.mobile-open .caret { display: none; }
  .menu.mobile-open .submenu { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: none; background: var(--bg-soft); margin: 0 0 8px; padding: 6px; }
  .menu.mobile-open .submenu li a { padding: 10px 14px; }
  .hero { height: auto; }
  .hero-slide { position: relative; visibility: visible; opacity: 1; display: none; }
  .hero-slide.is-active { display: block; }
  .hero-slide .hs-inner { padding: 60px 0 40px; min-height: 460px; }
  .hero-nav, .hero-arrow { display: none; }
  .prod-grid, .news-grid, .stats-grid, .steps, .honor-grid { grid-template-columns: 1fr; }
  .pd-features, .pd-shots, .value-list, .form-row { grid-template-columns: 1fr; }
  .timeline::before { left: 18px; }
  .tl-item { grid-template-columns: 1fr; gap: 4px; padding-left: 30px; }
  .tl-year { text-align: left; }
  .tl-body { padding-left: 0; }
  .nl-item { grid-template-columns: 1fr; }
  .nl-body { padding: 0 24px 24px; }
  .trust-inner { justify-content: flex-start; gap: 18px 26px; }
}
@media (max-width: 520px) {
  .ind-grid, .related-grid { grid-template-columns: 1fr 1fr; }
  .container { padding: 0 18px; }
  .lang-switch .ls-txt { display: none; }
  .lang-switch { padding: 9px 12px; }
}

/* ============================================================
   补充类（产品集合页 / 关于页，兼容已迁移内容）
   ============================================================ */
.prod-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; padding: 56px 0; border-bottom: 1px solid var(--line); scroll-margin-top: 150px; }
.prod-detail:last-child { border-bottom: none; }
.prod-detail:nth-child(even) .prod-detail-media { order: 2; }
.prod-detail-media { position: relative; border-radius: var(--radius); overflow: hidden; background: var(--grad-dark); min-height: 320px; display: grid; place-items: center; box-shadow: var(--shadow-md); }
.prod-detail-media .pattern { position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px); background-size: 40px 40px; }
.prod-detail-media .ico { position: relative; z-index: 2; width: 92px; height: 92px; color: rgba(255,255,255,.92); }
.prod-detail-body .eyebrow { margin-bottom: 14px; }
.prod-detail-body h2 { font-size: clamp(24px, 3vw, 34px); margin-bottom: 16px; }
.prod-detail-body > p { color: var(--muted); font-size: 16px; margin-bottom: 22px; }
.spec-table { width: 100%; border-collapse: collapse; border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden; margin-bottom: 22px; }
.spec-table tr:nth-child(odd) { background: var(--bg-soft); }
.spec-table td { padding: 12px 18px; font-size: 14.5px; border-bottom: 1px solid var(--line); }
.spec-table td:first-child { color: var(--muted); width: 38%; font-weight: 600; }
.spec-table td:last-child { color: var(--ink); }
.chip-row { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 24px; }
.chip { font-size: 13px; font-weight: 700; color: var(--primary); background: var(--primary-soft); padding: 7px 15px; border-radius: 999px; }
.about-visual { position: relative; border-radius: var(--radius); overflow: hidden; background: var(--grad-dark); min-height: 340px; display: grid; place-items: center; box-shadow: var(--shadow-lg); }
.about-visual .pattern { position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px); background-size: 46px 46px; }
.about-visual .big { position: relative; z-index: 2; text-align: center; color: #fff; }
.about-visual .big .n { font-size: clamp(52px, 7vw, 84px); font-weight: 900; line-height: 1; color: #fff; }
.about-visual .big .n span { color: var(--cyan); }
.about-visual .big .t { font-size: 16px; color: rgba(255,255,255,.8); margin-top: 10px; }
.feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }

@media (max-width: 992px) {
  .prod-detail { grid-template-columns: 1fr; gap: 28px; }
  .prod-detail:nth-child(even) .prod-detail-media { order: 0; }
}
@media (max-width: 768px) {
  .feature-grid { grid-template-columns: 1fr; }
}

/* ===== FAQ (SEO/GEO 友好) ===== */
.faq-sec { margin: 44px 0 8px; }
.faq-list { display: flex; flex-direction: column; gap: 12px; margin-top: 18px; }
.faq-item { background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden; }
.faq-item summary { cursor: pointer; list-style: none; padding: 16px 20px; font-weight: 700; color: var(--ink); font-size: 16px; display: flex; justify-content: space-between; align-items: center; gap: 14px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-size: 24px; line-height: 1; color: var(--primary); font-weight: 700; }
.faq-item[open] summary::after { content: "\2212"; }
.faq-item > p { margin: 0; padding: 0 20px 18px; color: var(--muted); font-size: 15px; line-height: 1.85; }
@media (max-width: 768px) { .faq-item summary { font-size: 15px; padding: 14px 16px; } .faq-item > p { padding: 0 16px 16px; } }