/* ============================================================
   esuner-cms 前台样式 · 科幻深空主题 · 全端自适应
   ============================================================ */
:root {
  --bg: #04060d;
  --bg2: #070b17;
  --panel: rgba(255, 255, 255, .045);
  --panel2: rgba(255, 255, 255, .075);
  --line: rgba(148, 190, 255, .14);
  --line2: rgba(148, 190, 255, .28);
  --txt: #e8eefc;
  --mut: #8fa3c8;
  --cyan: #2ee6ff;
  --blue: #4d7cff;
  --purple: #8b5cff;
  --pink: #ff5cd2;
  --grad: linear-gradient(100deg, var(--cyan), var(--blue) 45%, var(--purple));
  --radius: 16px;
  --shadow: 0 20px 60px rgba(2, 6, 20, .55);
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei",
          "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  /* 深色（默认）皮肤专用 */
  --bg-deep: #03040a;
  --grid-line: rgba(120, 160, 255, .05);
  --header-bg: rgba(5, 8, 18, .72);
  --hero-metrics-bg: rgba(7, 11, 23, .6);
  --sec-alt-bg: linear-gradient(180deg, rgba(13, 20, 40, .5), transparent);
  --footer-bg: rgba(4, 6, 12, .9);
  --input-bg: rgba(10, 16, 32, .7);
  --code-bg: #0a1020;
  --hero-dot-bg: rgba(255, 255, 255, .2);
  --nav-menu-bg: rgba(5, 8, 18, .96);
}

/* ========== 浅色皮肤（自动/手动切换 data-skin="light"） ========== */
html[data-skin="light"] {
  --bg: #eef3fc; --bg2: #e4ecfa; --bg-deep: #d9e4f6;
  --panel: rgba(255, 255, 255, .78); --panel2: rgba(255, 255, 255, .96);
  --line: rgba(77, 124, 255, .15); --line2: rgba(77, 124, 255, .32);
  --txt: #16223c; --mut: #5b6c8f;
  --cyan: #0093ad; --blue: #3d63e8; --purple: #7a3cff;
  --shadow: 0 20px 60px rgba(35, 70, 140, .14);
  --grid-line: rgba(77, 124, 255, .08);
  --header-bg: rgba(255, 255, 255, .88);
  --hero-metrics-bg: rgba(255, 255, 255, .8);
  --sec-alt-bg: linear-gradient(180deg, rgba(77, 124, 255, .07), transparent);
  --footer-bg: #e2eaf9;
  --input-bg: rgba(255, 255, 255, .93);
  --code-bg: #0b1226;               /* 代码块保持深色 */
  --hero-dot-bg: rgba(22, 34, 60, .22);
  --nav-menu-bg: rgba(255, 255, 255, .98);
}
html[data-skin="light"] .alert.ok { color: #0e7d4a; }
html[data-skin="light"] .alert.warn { color: #b45a12; }
html[data-skin="light"] .gb-reply { color: #6a45c9; }
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--txt);
  line-height: 1.75;
  font-size: 15px;
  min-height: 100vh;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.wrap { width: min(1200px, 92%); margin: 0 auto; }
::selection { background: rgba(46, 230, 255, .3); }

/* ---------- 背景特效（纯 CSS，零开销） ---------- */
.bg-fx { position: fixed; inset: 0; z-index: -2; overflow: hidden;
  background: radial-gradient(1200px 800px at 85% -10%, rgba(77, 124, 255, .16), transparent 60%),
              radial-gradient(1000px 700px at -10% 30%, rgba(139, 92, 255, .12), transparent 60%),
              linear-gradient(180deg, var(--bg), var(--bg2) 60%, var(--bg-deep));
}
.orb { position: absolute; border-radius: 50%; filter: blur(90px); opacity: .5; animation: float 14s ease-in-out infinite; }
.orb-1 { width: 420px; height: 420px; left: -120px; top: 10%; background: rgba(46, 230, 255, .16); }
.orb-2 { width: 520px; height: 520px; right: -160px; top: 35%; background: rgba(139, 92, 255, .15); animation-delay: -5s; }
.orb-3 { width: 380px; height: 380px; left: 30%; bottom: -160px; background: rgba(77, 124, 255, .14); animation-delay: -9s; }
@keyframes float { 0%,100% { transform: translateY(0) scale(1); } 50% { transform: translateY(-40px) scale(1.06); } }
.grid-overlay {
  position: absolute; inset: 0; opacity: .5;
  background-image: linear-gradient(var(--grid-line) 1px, transparent 1px),
                    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 20%, transparent 75%);
}

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  background: var(--header-bg);
  border-bottom: 1px solid var(--line);
}
.header-in { display: flex; align-items: center; justify-content: space-between; height: 66px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center;
  background: var(--grad); color: #04121a; font-weight: 900; font-size: 22px;
  box-shadow: 0 0 22px rgba(46, 230, 255, .45);
}
.brand-text strong { display: block; font-size: 18px; letter-spacing: 2px; line-height: 1.2; }
.brand-text em { font-style: normal; font-size: 11px; color: var(--mut); letter-spacing: 3px; }
.site-nav { display: flex; gap: 6px; align-items: center; }
.site-nav a {
  padding: 8px 16px; border-radius: 999px; color: var(--mut);
  transition: .25s; font-size: 15px; letter-spacing: 1px; position: relative;
}
.site-nav a:hover { color: var(--txt); background: var(--panel2); }
.site-nav a.on { color: #04121a; background: var(--grad); font-weight: 600; box-shadow: 0 0 18px rgba(46,230,255,.35); }
.site-nav a.nav-admin { font-size: 12px; border: 1px dashed var(--line2); color: var(--mut); }
.nav-toggle { display: none; background: none; border: 1px solid var(--line2); border-radius: 8px;
  width: 42px; height: 38px; cursor: pointer; flex-direction: column; align-items: center; justify-content: center; gap: 5px; }
.nav-toggle span { width: 20px; height: 2px; background: var(--txt); border-radius: 2px; transition: .3s; }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; }
.hero-slider { min-height: min(560px, 78vh); position: relative; }
.hero-slide {
  position: absolute; inset: 0; display: flex; align-items: center;
  opacity: 0; transform: translateY(16px); transition: opacity .8s, transform .8s; pointer-events: none;
}
.hero-slide.active { opacity: 1; transform: none; pointer-events: auto; }
.hero-in { display: grid; grid-template-columns: 1.15fr .85fr; align-items: center; gap: 30px; padding: 56px 0 90px; }
.hero-tag {
  display: inline-block; font-size: 12px; letter-spacing: 4px; color: var(--cyan);
  border: 1px solid rgba(46,230,255,.35); border-radius: 999px; padding: 4px 14px; margin-bottom: 18px;
  background: rgba(46,230,255,.06);
}
.hero-copy h1 {
  font-size: clamp(28px, 4.6vw, 52px); line-height: 1.25; letter-spacing: 2px; margin-bottom: 18px;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-copy p { color: var(--mut); font-size: 16px; max-width: 560px; margin-bottom: 28px; }
.btn-primary {
  display: inline-block; padding: 11px 28px; border-radius: 999px; font-weight: 600; letter-spacing: 2px;
  background: var(--grad); color: #04121a; transition: .3s; border: none; cursor: pointer;
  box-shadow: 0 6px 24px rgba(46, 230, 255, .3);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 34px rgba(46, 230, 255, .5); }
.btn-ghost {
  display: inline-block; padding: 9px 20px; border-radius: 999px; border: 1px solid var(--line2);
  color: var(--cyan); transition: .3s; font-size: 14px;
}
.btn-ghost:hover { background: rgba(46,230,255,.08); border-color: var(--cyan); }
.hero-art { display: flex; justify-content: center; }
.hud-card {
  position: relative; width: min(320px, 80vw); aspect-ratio: 1; border-radius: 24px;
  border: 1px solid var(--line2); background: var(--panel); overflow: hidden;
  box-shadow: var(--shadow), inset 0 0 60px rgba(77,124,255,.08);
}
.hud-line { position: absolute; inset: 10%; border: 1px solid rgba(46,230,255,.35); border-radius: 50%;
  animation: spin 22s linear infinite; }
.hud-line::before { content: ''; position: absolute; inset: -12%; border: 1px dashed rgba(139,92,255,.4);
  border-radius: 50%; animation: spin 34s linear infinite reverse; }
.hud-grid { position: absolute; inset: 0;
  background-image: linear-gradient(rgba(46,230,255,.14) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(46,230,255,.14) 1px, transparent 1px);
  background-size: 28px 28px; mask-image: radial-gradient(circle at 50% 50%, #000 30%, transparent 75%); }
.hud-ring { position: absolute; inset: 22%; border-radius: 50%; border: 2px solid transparent;
  border-top-color: var(--cyan); border-right-color: var(--purple); animation: spin 6s linear infinite; }
.hud-core { position: absolute; inset: 34%; border-radius: 50%; display: grid; place-items: center;
  background: var(--grad); color: #04121a; font-weight: 900; font-size: 30px; letter-spacing: 1px;
  box-shadow: 0 0 40px rgba(46,230,255,.5); }
@keyframes spin { to { transform: rotate(360deg); } }
.hero-dots { position: absolute; bottom: 64px; left: 50%; transform: translateX(-50%); display: flex; gap: 8px; z-index: 5; }
.hero-dots button { width: 26px; height: 4px; border-radius: 4px; border: none; background: var(--hero-dot-bg);
  cursor: pointer; transition: .3s; }
.hero-dots button.on { background: var(--cyan); box-shadow: 0 0 10px rgba(46,230,255,.7); }
.hero-metrics { position: relative; border-top: 1px solid var(--line); background: var(--hero-metrics-bg);
  backdrop-filter: blur(8px); }
.hm-in { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; padding: 22px 0; }
.hm-in div { text-align: center; }
.hm-in b { font-size: clamp(24px, 3vw, 34px); background: var(--grad); -webkit-background-clip: text;
  background-clip: text; color: transparent; }
.hm-in b span { font-size: .55em; }
.hm-in i { display: block; font-style: normal; color: var(--mut); font-size: 13px; letter-spacing: 2px; }

/* ---------- 通用区块 ---------- */
.sec { padding: 72px 0; position: relative; }
.sec-alt { background: var(--sec-alt-bg); }
.sec-head { text-align: center; margin-bottom: 46px; }
.sec-tag { display: inline-block; font-size: 12px; letter-spacing: 4px; color: var(--cyan);
  border: 1px solid rgba(46,230,255,.3); border-radius: 999px; padding: 3px 12px; margin-bottom: 12px; }
.sec-head h2 { font-size: clamp(24px, 3.4vw, 36px); letter-spacing: 3px; margin-bottom: 10px; }
.sec-head p { color: var(--mut); }
.glass {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
}

/* ---------- 服务卡片 ---------- */
.svc-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.svc-card { padding: 28px 22px; transition: .35s; position: relative; overflow: hidden; }
.svc-card::after { content: ''; position: absolute; inset: auto 0 0 0; height: 2px;
  background: var(--grad); transform: scaleX(0); transition: .35s; }
.svc-card:hover { transform: translateY(-6px); border-color: var(--line2); }
.svc-card:hover::after { transform: scaleX(1); }
.svc-icon { width: 52px; height: 52px; border-radius: 14px; margin-bottom: 18px; position: relative;
  background: linear-gradient(135deg, rgba(46,230,255,.16), rgba(139,92,255,.16)); border: 1px solid var(--line2); }
.svc-icon::before { content: ''; position: absolute; inset: 13px; border-radius: 6px; background: var(--grad); opacity: .85; }
.icon-web::before { clip-path: polygon(0 0, 100% 0, 100% 70%, 50% 100%, 0 70%); }
.icon-code::before { clip-path: polygon(30% 0, 100% 0, 70% 100%, 0 100%); }
.icon-shop::before { clip-path: polygon(10% 20%, 40% 10%, 60% 10%, 90% 20%, 80% 80%, 20% 80%); }
.icon-gear::before { clip-path: circle(50% at 50% 50%); }
.icon-phone::before { clip-path: inset(8% 24% round 20% 20% 30% 30%); }
.svc-card h3 { font-size: 17px; letter-spacing: 1px; margin-bottom: 14px; }
.svc-card ul { list-style: none; color: var(--mut); font-size: 13.5px; }
.svc-card li { padding: 4px 0 4px 16px; position: relative; }
.svc-card li::before { content: ''; position: absolute; left: 0; top: 12px; width: 7px; height: 7px;
  border-radius: 50%; background: var(--grad); }

/* ---------- 产品 ---------- */
.prod-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.prod-card { overflow: hidden; transition: .35s; display: block; }
.prod-card:hover { transform: translateY(-6px); border-color: rgba(46,230,255,.4); box-shadow: 0 18px 50px rgba(46,230,255,.12); }
.prod-thumb { height: 150px; position: relative; display: grid; place-items: center; overflow: hidden;
  background: linear-gradient(135deg, rgba(46,230,255,.1), rgba(139,92,255,.14)); border-bottom: 1px solid var(--line); }
.prod-thumb img { width: 100%; height: 100%; object-fit: cover; position: relative; z-index: 1; }
.prod-thumb::before { content: ''; position: absolute; inset: 20px; border: 1px dashed rgba(46,230,255,.3);
  border-radius: 18px; animation: spin 30s linear infinite; z-index: 0; }
.prod-letter { font-size: 56px; font-weight: 900; background: var(--grad);
  -webkit-background-clip: text; background-clip: text; color: transparent; }
.prod-body { padding: 22px; }
.prod-body h3 { font-size: 17px; margin-bottom: 8px; letter-spacing: 1px; }
.prod-body p { color: var(--mut); font-size: 13.5px; display: -webkit-box; -webkit-line-clamp: 2;
  -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 12px; }
.prod-more { color: var(--cyan); font-size: 13px; letter-spacing: 1px; }

/* ---------- 新闻列表 ---------- */
.news-list { padding: 10px 26px; }
.news-item { display: grid; grid-template-columns: 110px 1fr auto; gap: 18px; align-items: center;
  padding: 15px 0; border-bottom: 1px dashed var(--line); transition: .25s; }
.news-item:last-child { border-bottom: none; }
.news-item:hover .news-title { color: var(--cyan); }
.news-date { color: var(--mut); font-size: 13px; font-variant-numeric: tabular-nums; }
.news-title { transition: .25s; }
.news-cat { font-size: 12px; color: var(--purple); border: 1px solid rgba(139,92,255,.4);
  border-radius: 999px; padding: 2px 12px; }

/* ---------- Logo 墙 ---------- */
.logo-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.logo-chip {
  display: grid; place-items: center; height: 88px; padding: 12px; transition: .3s; overflow: hidden;
  font-weight: 600; letter-spacing: 2px; color: var(--mut);
}
.logo-chip img { max-height: 52px; width: auto; filter: grayscale(.5); opacity: .75; transition: .3s; }
.logo-chip:hover { border-color: rgba(46,230,255,.45); color: var(--txt); transform: translateY(-4px); }
.logo-chip:hover img { filter: none; opacity: 1; }
.logo-grid.partner .logo-chip { height: 74px; }

/* ---------- CTA ---------- */
.cta { padding: 70px 0; }
.cta-in { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap;
  padding: 40px 44px; border-radius: 20px; position: relative; overflow: hidden;
  background: linear-gradient(120deg, rgba(46,230,255,.1), rgba(139,92,255,.12));
  border: 1px solid var(--line2); }
.cta-in::before { content: ''; position: absolute; width: 320px; height: 320px; right: -120px; top: -160px;
  border-radius: 50%; background: radial-gradient(circle, rgba(46,230,255,.25), transparent 70%);
  pointer-events: none; }
.cta-in > * { position: relative; z-index: 1; }
.cta-in a { cursor: pointer; }
.cta-in h2 { font-size: 26px; letter-spacing: 2px; margin-bottom: 6px; }
.cta-in p { color: var(--mut); }

/* ---------- 页头 ---------- */
.page-head { padding: 64px 0 10px; position: relative; }
.page-head h1 { font-size: clamp(26px, 4vw, 40px); letter-spacing: 3px; margin: 10px 0 8px;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.page-head p { color: var(--mut); }
.art-meta { font-size: 13px !important; }

/* ---------- 列表页 / 详情页 ---------- */
.page-body { max-width: 900px; }
.list-panel { padding: 8px 30px; }
.list-item { display: flex; gap: 18px; align-items: flex-start; padding: 22px 0; border-bottom: 1px dashed var(--line); transition: .25s; }
.list-item:last-child { border-bottom: none; }
.list-item:hover .li-title { color: var(--cyan); }
.li-thumb { flex: 0 0 180px; height: 112px; border-radius: 12px; overflow: hidden; border: 1px solid var(--line); }
.li-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; transition: .35s; }
.list-item:hover .li-thumb img { transform: scale(1.05); }
.li-main { flex: 1; min-width: 0; }
.li-meta { display: flex; gap: 14px; align-items: center; margin-bottom: 8px; }
.li-date { color: var(--mut); font-size: 13px; }
.li-top { font-size: 11px; color: #04121a; background: var(--grad); border-radius: 6px; padding: 1px 8px; font-weight: 600; }
.li-views { color: var(--mut); font-size: 12px; }
.li-cat { color: var(--purple); font-size: 12px; border: 1px solid rgba(139,92,255,.4); border-radius: 999px; padding: 1px 10px; }
.li-title { font-size: 18px; letter-spacing: 1px; transition: .25s; }
.li-summary { color: var(--mut); font-size: 14px; margin-top: 6px; }
.li-more { color: var(--cyan); font-size: 13px; display: inline-block; margin-top: 10px; }
.empty { text-align: center; color: var(--mut); padding: 48px 0; }

.pager { display: flex; justify-content: center; gap: 8px; margin-top: 34px; flex-wrap: wrap; }
.pager a, .pager span { min-width: 38px; padding: 7px 12px; text-align: center; border-radius: 10px;
  border: 1px solid var(--line); color: var(--mut); transition: .25s; }
.pager a:hover { border-color: var(--cyan); color: var(--cyan); }
.pager a.on { background: var(--grad); color: #04121a; border-color: transparent; font-weight: 600; }
.pager a.disabled { opacity: .35; pointer-events: none; }

/* ---------- 文章详情 ---------- */
.article { padding: 40px 48px; }
.art-cover { margin: -40px -48px 26px; border-radius: 16px 16px 0 0; overflow: hidden; max-height: 360px; }
.art-cover img { width: 100%; height: 100%; max-height: 360px; object-fit: cover; display: block; border: none !important; margin: 0 !important; }
.art-lead { color: var(--mut); border-left: 3px solid var(--cyan); padding: 6px 0 6px 18px; margin-bottom: 26px; font-size: 15px; }
.art-content { font-size: 15.5px; }
.art-content p { margin-bottom: 16px; }
.art-content h1, .art-content h2, .art-content h3, .art-content h4 { margin: 26px 0 12px; letter-spacing: 1px; }
.art-content ul, .art-content ol { margin: 0 0 16px 24px; }
.art-content li { margin-bottom: 6px; }
.art-content blockquote { border-left: 3px solid var(--purple); padding: 8px 18px; margin: 16px 0;
  background: rgba(139,92,255,.07); color: var(--mut); border-radius: 0 10px 10px 0; }
.art-content a { color: var(--cyan); border-bottom: 1px dashed var(--cyan); }
.art-content img { border-radius: 12px; margin: 14px 0; border: 1px solid var(--line); }
.art-content table { width: 100%; border-collapse: collapse; margin: 16px 0; }
.art-content td, .art-content th { border: 1px solid var(--line2); padding: 8px 12px; }
.art-content pre { background: var(--code-bg); border: 1px solid var(--line); border-radius: 10px; padding: 14px; overflow-x: auto; margin: 16px 0; }
.art-nav { display: flex; justify-content: space-between; gap: 14px; margin-top: 34px; padding-top: 22px;
  border-top: 1px dashed var(--line); font-size: 14px; }
.art-nav a { color: var(--cyan); transition: .25s; }
.art-nav a:hover { text-shadow: 0 0 12px rgba(46,230,255,.6); }
.rel-panel { margin-top: 22px; padding: 26px 30px; }
.rel-panel h3 { font-size: 16px; margin-bottom: 14px; letter-spacing: 2px; }
.rel-list { display: flex; flex-direction: column; gap: 8px; }
.rel-list a { color: var(--mut); transition: .25s; font-size: 14px; }
.rel-list a:hover { color: var(--cyan); transform: translateX(4px); }
.cta-inline { display: flex; align-items: center; justify-content: space-between; gap: 16px;
  margin-top: 22px; padding: 26px 30px; flex-wrap: wrap; }
.cta-inline h3 { letter-spacing: 1px; }
.cta-inline p { color: var(--mut); font-size: 14px; }

/* ---------- 留言板 ---------- */
.gb-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: start; }
.gb-form { padding: 32px; }
.f-row { margin-bottom: 18px; }
.f-row label { display: block; color: var(--mut); font-size: 13.5px; margin-bottom: 7px; letter-spacing: 1px; }
.f-row input, .f-row textarea, .search-box input {
  width: 100%; padding: 11px 14px; border-radius: 10px; color: var(--txt); font: inherit;
  background: var(--input-bg); border: 1px solid var(--line); outline: none; transition: .25s;
}
.f-row input:focus, .f-row textarea:focus, .search-box input:focus { border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(46,230,255,.12); }
.f-row textarea { resize: vertical; min-height: 130px; }
.f-hint { display: block; color: var(--mut); font-size: 12px; margin-top: 6px; letter-spacing: .5px; }
.alert { padding: 12px 16px; border-radius: 10px; margin-bottom: 20px; font-size: 14px; }
.alert.ok { background: rgba(46, 200, 120, .12); border: 1px solid rgba(46,200,120,.4); color: #7df0b2; }
.alert.warn { background: rgba(255, 150, 60, .1); border: 1px solid rgba(255,150,60,.4); color: #ffb877; }
.gb-list { padding: 28px 30px; }
.gb-list h3 { letter-spacing: 2px; font-size: 16px; margin-bottom: 18px; }
.gb-item { padding: 16px 0; border-bottom: 1px dashed var(--line); }
.gb-item:last-of-type { border-bottom: none; }
.gb-head { display: flex; justify-content: space-between; margin-bottom: 8px; }
.gb-head strong { color: var(--cyan); font-size: 14.5px; }
.gb-head span { color: var(--mut); font-size: 12px; }
.gb-item p { color: var(--mut); font-size: 14px; }
.gb-reply { margin-top: 10px; padding: 10px 14px; border-radius: 10px; font-size: 13.5px;
  background: rgba(139,92,255,.08); border: 1px solid rgba(139,92,255,.3); color: #cbb2ff; }

/* ---------- 搜索 ---------- */
.search-box { display: flex; gap: 12px; margin-bottom: 20px; }
.search-box input { flex: 1; }
.search-note { color: var(--mut); margin-bottom: 16px; }
.search-note b { color: var(--cyan); }

/* ---------- 404 ---------- */
.notfound { text-align: center; padding: 70px 0; }
.nf-code { font-size: clamp(80px, 16vw, 160px); font-weight: 900; line-height: 1;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
  text-shadow: 0 0 60px rgba(46,230,255,.25); }
.notfound h2 { margin: 12px 0; letter-spacing: 3px; }
.notfound p { color: var(--mut); margin-bottom: 26px; }

/* ---------- 页脚 ---------- */
.site-footer { border-top: 1px solid var(--line); background: var(--footer-bg); margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1.2fr 1fr; gap: 30px; padding: 52px 0 36px; }
.brand-logo { height: 32px; width: auto; max-width: 160px; object-fit: contain; display: block; }
.f-brand { display: flex; gap: 12px; align-items: center; margin-bottom: 14px; }
.f-brand .brand-logo { height: 34px; }
.f-brand .brand-mark { width: 36px; height: 36px; font-size: 19px; }
.f-brand strong { display: block; letter-spacing: 2px; line-height: 1.2; }
.f-brand em { font-style: normal; color: var(--mut); font-size: 11px; letter-spacing: 2px; }
.f-desc { color: var(--mut); font-size: 13.5px; max-width: 340px; }
.f-col h4 { font-size: 15px; letter-spacing: 2px; margin-bottom: 16px; color: var(--txt); }
.f-col a, .f-col span { display: block; color: var(--mut); font-size: 13.5px; margin-bottom: 9px; transition: .25s; }
.f-col a:hover { color: var(--cyan); }
.f-contact .btn-ghost { margin-top: 8px; }
.f-bottom { border-top: 1px solid var(--line); padding: 18px 0; }
.f-bottom .wrap { display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap;
  color: var(--mut); font-size: 12.5px; }
.f-bottom .icp a { color: var(--mut); margin-left: 14px; }
.f-bottom .icp a:hover { color: var(--cyan); }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .svc-grid { grid-template-columns: repeat(3, 1fr); }
  .prod-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .site-nav {
    position: fixed; inset: 66px 0 auto 0; flex-direction: column; align-items: stretch;
    background: var(--nav-menu-bg); backdrop-filter: blur(16px); border-bottom: 1px solid var(--line);
    padding: 16px; gap: 4px; transform: translateY(-130%); transition: .35s; z-index: 99;
  }
  .site-nav.open { transform: none; }
  .site-nav a { padding: 12px 16px; text-align: center; font-size: 16px; }
  .nav-toggle { display: flex; }
  .hero-in { grid-template-columns: 1fr; text-align: center; padding: 46px 0 84px; }
  .hero-copy p { margin-inline: auto; }
  .hero-art { display: none; }
  .hero-slider { min-height: 480px; }
  .hm-in { grid-template-columns: repeat(2, 1fr); gap: 18px; }
  .sec { padding: 52px 0; }
  .svc-grid { grid-template-columns: repeat(2, 1fr); }
  .prod-grid { grid-template-columns: 1fr; }
  .logo-grid { grid-template-columns: repeat(2, 1fr); }
  .gb-layout { grid-template-columns: 1fr; }
  .article { padding: 26px 20px; }
  .list-item { flex-direction: column; gap: 12px; }
  .li-thumb { flex: none; width: 100%; height: 150px; }
  .list-panel { padding: 6px 20px; }
  .news-item { grid-template-columns: 1fr; gap: 4px; }
  .news-cat { justify-self: start; }
  .cta-in { padding: 30px 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .f-bottom .wrap { flex-direction: column; text-align: center; }
}
@media (max-width: 420px) {
  .svc-grid { grid-template-columns: 1fr; }
  .brand-text strong { font-size: 16px; }
}

/* ========== 语言切换器 ========== */
.lang-switch { position: relative; margin-left: 8px; flex-shrink: 0; }
.lang-btn { display: flex; align-items: center; gap: 6px; height: 36px; padding: 0 12px;
  border: 1px solid var(--line2); border-radius: 10px; background: var(--panel);
  color: var(--txt); font-size: 13px; cursor: pointer; transition: all .2s; }
.lang-btn:hover { border-color: var(--acc); box-shadow: 0 0 14px rgba(46,230,255,.18); }
.lg-flag { font-size: 15px; line-height: 1; }
.lg-name { font-weight: 600; }
.lg-caret { font-size: 10px; color: var(--mut); transition: transform .2s; }
.lang-switch.open .lg-caret { transform: rotate(180deg); }
.lang-drop { position: absolute; top: calc(100% + 8px); right: 0; min-width: 190px;
  background: var(--panel); border: 1px solid var(--line2); border-radius: 12px;
  padding: 6px; box-shadow: 0 14px 40px rgba(0,0,0,.45); opacity: 0; visibility: hidden;
  transform: translateY(-6px); transition: all .2s; z-index: 120; list-style: none; margin: 0; }
.lang-switch.open .lang-drop { opacity: 1; visibility: visible; transform: none; }
.lang-drop li { margin: 0; }
.lang-drop a { display: flex; align-items: center; gap: 8px; padding: 8px 10px; border-radius: 8px;
  color: var(--txt); font-size: 13.5px; text-decoration: none; }
.lang-drop a:hover { background: var(--panel2); }
.lang-drop a.on { background: var(--grad); color: #04121a; font-weight: 600; }
.lang-drop a em { margin-left: auto; font-style: normal; font-size: 11px; color: var(--mut); }
.lang-drop a.on em { color: rgba(4,18,26,.65); }
@media (max-width: 900px) {
  .lang-switch { margin: 0; }
  .lang-btn { width: 100%; justify-content: center; }
  .lang-drop { left: 0; right: auto; width: 100%; min-width: 0; }
}