/* ============================================================
   全伏科技 QuanVol — 站点共享设计系统
   未来玻璃 / Future Glass
   ============================================================ */

:root{
  --violet:#7C3AED;
  --pink:#EC4899;
  --cyan:#06B6D4;
  --grad:linear-gradient(135deg,#7C3AED 0%,#EC4899 100%);
  --grad-soft:linear-gradient(135deg,rgba(124,58,237,.16) 0%,rgba(236,72,153,.16) 100%);
  --grad-cyan:linear-gradient(135deg,#06B6D4 0%,#7C3AED 100%);
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:10px;
  --radius-full:999px;
  --font-sans:'Inter',-apple-system,BlinkMacSystemFont,'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Noto Sans SC',sans-serif;
  --font-mono:'JetBrains Mono',ui-monospace,'SF Mono',Cascadia Mono,Consolas,monospace;
  --ease:cubic-bezier(.16,1,.3,1);
  --maxw:1200px;
}

[data-theme="dark"]{
  --bg:#0A0B1A;
  --text:#F8FAFC;
  --text-2:rgba(248,250,252,.66);
  --text-3:rgba(248,250,252,.42);
  --glass:rgba(255,255,255,.05);
  --glass-strong:rgba(255,255,255,.085);
  --hairline:rgba(255,255,255,.09);
  --hairline-2:rgba(255,255,255,.18);
  --glow-v:rgba(124,58,237,.32);
  --glow-p:rgba(236,72,153,.22);
  --glow-c:rgba(6,182,212,.14);
  --grid-line:rgba(248,250,252,.045);
  --sheet:rgba(10,11,26,.72);
  --logo-color:#F8FAFC;
}
[data-theme="light"]{
  --bg:#EEF1F8;
  --text:#0F172A;
  --text-2:rgba(15,23,42,.68);
  --text-3:rgba(15,23,42,.46);
  --glass:rgba(255,255,255,.58);
  --glass-strong:rgba(255,255,255,.82);
  --hairline:rgba(15,23,42,.08);
  --hairline-2:rgba(15,23,42,.18);
  --glow-v:rgba(124,58,237,.16);
  --glow-p:rgba(236,72,153,.12);
  --glow-c:rgba(6,182,212,.12);
  --grid-line:rgba(15,23,42,.05);
  --sheet:rgba(238,241,248,.78);
  --logo-color:#0F172A;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-sans);
  background:var(--bg);
  color:var(--text);
  line-height:1.65;
  overflow-x:hidden;
  transition:background .45s ease,color .45s ease;
  -webkit-font-smoothing:antialiased;
}
::selection{background:rgba(124,58,237,.4);color:#F8FAFC}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.mono{font-family:var(--font-mono)}

/* ---------- 背景宇宙光晕 ---------- */
.cosmos{position:fixed;inset:0;z-index:-2;pointer-events:none;background:var(--bg)}
.cosmos::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(900px 620px at 82% -8%,var(--glow-v),transparent 65%),
    radial-gradient(760px 540px at 8% 12%,var(--glow-p),transparent 66%),
    radial-gradient(900px 700px at 50% 118%,var(--glow-c),transparent 62%);
  transition:background .45s ease;
}
.cosmos::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(var(--grid-line) 1px,transparent 1px),
                   linear-gradient(90deg,var(--grid-line) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(900px 520px at 50% 0%,#000 0%,transparent 78%);
  mask-image:radial-gradient(900px 520px at 50% 0%,#000 0%,transparent 78%);
}

/* ---------- 玻璃 ---------- */
.glass{
  background:var(--glass);
  -webkit-backdrop-filter:blur(18px) saturate(1.4);
  backdrop-filter:blur(18px) saturate(1.4);
  border:1px solid var(--hairline);
  border-radius:var(--radius-lg);
}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;
  color:var(--text-2);border:1px solid var(--hairline);
  border-radius:var(--radius-full);padding:7px 16px;background:var(--glass);
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--grad);box-shadow:0 0 10px rgba(236,72,153,.8)}
.kicker{font-family:var(--font-mono);font-size:12px;letter-spacing:.18em;color:var(--cyan)}
.sec-head{max-width:740px;margin:0 auto 56px;text-align:center}
.sec-head h2{font-size:clamp(1.9rem,3.6vw,2.75rem);font-weight:800;letter-spacing:-.025em;line-height:1.18;margin:18px 0 14px}
.sec-head p{color:var(--text-2);font-size:clamp(.98rem,1.4vw,1.08rem)}
.sec-head.left{text-align:left;margin-left:0;max-width:660px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  font-weight:600;font-size:15px;letter-spacing:.01em;
  border-radius:var(--radius-full);padding:14px 30px;
  transition:transform .3s var(--ease),opacity .3s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(0) scale(.985)}
.btn-primary{background:var(--grad);color:#F8FAFC;box-shadow:0 10px 32px rgba(124,58,237,.35)}
.btn-primary:hover{transform:translateY(-2px)}
.btn-ghost{background:var(--glass);border:1px solid var(--hairline-2);color:var(--text);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}
.btn-ghost:hover{transform:translateY(-2px);opacity:.92}
.btn-cyan{background:var(--grad-cyan);color:#F8FAFC;box-shadow:0 10px 30px rgba(6,182,212,.3)}
.btn-cyan:hover{transform:translateY(-2px)}
.btn .ico{width:17px;height:17px;flex:none}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-lg{padding:16px 36px;font-size:16px}
.btn-block{width:100%}

/* ---------- 入场 ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ============================================================
   导航
   ============================================================ */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  transition:background .35s ease,border-color .35s ease;
  border-bottom:1px solid transparent;
}
.nav.scrolled{
  background:var(--sheet);
  -webkit-backdrop-filter:blur(20px) saturate(1.5);backdrop-filter:blur(20px) saturate(1.5);
  border-bottom-color:var(--hairline);
}
.nav-inner{max-width:var(--maxw);margin:0 auto;padding:13px 24px;display:flex;align-items:center;gap:20px;min-width:0}
.brand{display:flex;align-items:center;gap:12px;flex:none;min-width:0}
/* 商标图形比例锁定 858:666 ≈ 1.288，禁止拉伸 */
.brand-mark{width:33px;height:25.6px;flex:none;color:var(--logo-color);display:block}
.brand-mark svg{width:100%;height:100%;display:block}
.brand-txt{display:flex;flex-direction:column;line-height:1.1;justify-content:center;min-width:0}
.brand-cn{font-weight:800;font-size:23px;letter-spacing:-.01em;white-space:nowrap;line-height:1.05}
.brand-en{font-family:var(--font-mono);font-size:7.5px;letter-spacing:.04em;color:var(--text-3);white-space:nowrap;margin-top:2px}

/* 主导航：flex + 不换行（修掉竖排问题） */
.nav-links{display:flex;gap:2px;margin-left:auto;align-items:center}
.nav-links>a,.nav-drop>button{
  display:inline-flex;align-items:center;gap:5px;
  font-size:14px;font-weight:500;color:var(--text-2);
  padding:8px 13px;border-radius:var(--radius-full);
  transition:color .25s ease,background .25s ease;
  white-space:nowrap;
}
.nav-links>a:hover,.nav-drop>button:hover{color:var(--text);background:var(--glass)}
.nav-drop{position:relative}
.nav-drop>button .chev{width:13px;height:13px;transition:transform .3s var(--ease)}
.nav-drop:hover>button .chev{transform:rotate(180deg)}
.nav-drop.open>button{color:var(--text);background:var(--glass)}
.nav-drop.open>button .chev{transform:rotate(180deg)}
/* 悬停桥：补住按钮与下拉面板之间的空隙，鼠标下移时不会离开 hover 区域 */
.nav-drop::after{
  content:"";position:absolute;left:0;right:0;top:100%;height:14px;
}
.drop-panel{
  position:absolute;top:100%;left:50%;transform:translate(-50%,8px);
  margin-top:10px;
  min-width:320px;padding:10px;
  background:var(--sheet);
  -webkit-backdrop-filter:blur(24px) saturate(1.5);backdrop-filter:blur(24px) saturate(1.5);
  border:1px solid var(--hairline);border-radius:var(--radius-md);
  box-shadow:0 24px 60px rgba(10,11,26,.42);
  opacity:0;pointer-events:none;visibility:hidden;
  transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s;
}
/* 面板贴近光标侧补白，避免沿对角线移动到下一项时中途脱离 */
.drop-panel::before{
  content:"";position:absolute;left:0;right:0;top:-12px;height:12px;
}
.nav-drop:hover .drop-panel,
.nav-drop.open .drop-panel,
.nav-drop:focus-within .drop-panel{opacity:1;pointer-events:auto;visibility:visible;transform:translate(-50%,0)}
/* 焦点在按钮上但未展开时，不因 :focus-within 误撑开面板 */
.nav-drop:not(:hover):not(.open):not(:focus-within) .drop-panel{
  opacity:0;pointer-events:none;visibility:hidden;transform:translate(-50%,8px);
}
.drop-panel a{
  display:flex;align-items:center;gap:11px;padding:10px 13px;border-radius:var(--radius-sm);
  font-size:13.5px;font-weight:500;color:var(--text-2);white-space:nowrap;
  transition:background .22s ease,color .22s ease;
}
.drop-panel a:hover{background:var(--glass-strong);color:var(--text)}
.drop-panel a svg{width:16px;height:16px;flex:none}
.drop-panel a .dp-sub{display:block;font-size:11px;color:var(--text-3);font-weight:400}
.drop-panel a.v svg{color:var(--violet)}
.drop-panel a.p svg{color:var(--pink)}
.drop-panel a.c svg{color:var(--cyan)}
/* 双列下拉：产品与定制频道（左列产品前半 + 右列产品后半与总览入口）。
   面板左对齐到触发按钮并向右侧展开，避免居中定位时溢出视口左侧。 */
.drop-panel.two,.drop-panel.prod{
  display:flex;gap:6px;padding:12px;min-width:640px;
  left:-14px;transform:translate(0,8px);
}
.nav-drop:hover .drop-panel.two,
.nav-drop.open .drop-panel.two,
.nav-drop:focus-within .drop-panel.two,
.nav-drop:hover .drop-panel.prod,
.nav-drop.open .drop-panel.prod,
.nav-drop:focus-within .drop-panel.prod{transform:translate(0,0)}
.nav-drop:not(:hover):not(.open):not(:focus-within) .drop-panel.two,
.nav-drop:not(:hover):not(.open):not(:focus-within) .drop-panel.prod{transform:translate(0,8px)}
.drop-panel.two .dp-col,.drop-panel.prod .dp-col{display:flex;flex-direction:column;gap:2px;flex:1;min-width:0}
.drop-panel.two .dp-col:first-child{flex:0 0 300px}
.dp-title{
  font-size:10.5px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;
  color:var(--text-3);padding:6px 13px 9px;
}
@media (max-width:1200px){
  .drop-panel.two,.drop-panel.prod{min-width:0;left:-14px}
  .drop-panel.two .dp-col:first-child{flex:0 0 264px}
}
/* 汉堡菜单复用 productDropItems 的 SVG，同样锁定尺寸，避免图标铺满整行 */
.mobile-menu a svg{width:16px;height:16px;flex:none}
.mobile-menu a.v svg{color:var(--violet)}
.mobile-menu a.p svg{color:var(--pink)}
.mobile-menu a.c svg{color:var(--cyan)}
.mobile-menu a .dp-sub{display:block;font-size:11.5px;color:var(--text-3);font-weight:400;margin-top:2px;white-space:normal;line-height:1.45}
.mobile-menu a{white-space:normal}

.nav-actions{display:flex;align-items:center;gap:10px;flex:none}

/* 语言切换器：三态胶囊（簡中 / 繁中 / EN） */
.lang-switch{
  display:inline-flex;align-items:center;gap:2px;flex:none;
  padding:3px;border-radius:var(--radius-full);
  background:var(--glass);border:1px solid var(--hairline);
}
.lang-switch .ls-item{
  display:inline-flex;align-items:center;justify-content:center;
  padding:5px 9px;border-radius:var(--radius-full);
  font-size:12px;font-weight:600;line-height:1;
  color:var(--text-3);white-space:nowrap;
  transition:color .25s ease,background .25s ease;
}
.lang-switch .ls-item:hover{color:var(--text)}
.lang-switch .ls-item.on{
  color:var(--text);background:var(--glass-strong);
  box-shadow:inset 0 0 0 1px var(--hairline);
}
/* 英文站主字标切到拉丁字形，字距略收，避免「QuanVol」过宽 */
.brand-lat{font-family:var(--font-sans);font-weight:800;font-size:22px;letter-spacing:-.02em}

.theme-btn{
  width:40px;height:40px;border-radius:var(--radius-full);display:grid;place-items:center;
  background:var(--glass);border:1px solid var(--hairline);color:var(--text-2);
  transition:color .25s ease,transform .3s var(--ease);flex:none;
}
.theme-btn:hover{color:var(--text);transform:rotate(14deg)}
.theme-btn svg{width:18px;height:18px}
[data-theme="dark"] .icon-sun{display:block}
[data-theme="dark"] .icon-moon{display:none}
[data-theme="light"] .icon-sun{display:none}
[data-theme="light"] .icon-moon{display:block}
.menu-btn{display:none}
.nav-cta{display:none}

/* 移动菜单 */
.mobile-menu{
  display:none;position:fixed;top:64px;left:14px;right:14px;z-index:99;
  padding:12px;max-height:calc(100vh - 84px);overflow-y:auto;
  opacity:0;transform:translateY(-12px);pointer-events:none;
  transition:opacity .35s var(--ease),transform .35s var(--ease);
}
.mobile-menu.open{opacity:1;transform:none;pointer-events:auto}
/* 汉堡菜单里的语言切换行 */
.mm-langs{display:flex;gap:8px;padding:10px 16px 4px;flex-wrap:wrap}
.mm-langs .mm-lang{
  display:inline-flex;align-items:center;padding:8px 15px;border-radius:var(--radius-full);
  border:1px solid var(--hairline);background:var(--glass);
  font-size:13px;font-weight:600;color:var(--text-3);white-space:nowrap;
}
.mm-langs .mm-lang.on{color:var(--text);background:var(--glass-strong)}
.mobile-menu a{display:block;padding:12px 16px;border-radius:var(--radius-sm);font-weight:500;color:var(--text-2);font-size:15px;white-space:nowrap}
.mobile-menu a:hover{background:var(--glass);color:var(--text)}
.mobile-menu .mm-title{font-family:var(--font-sans);font-size:12px;letter-spacing:.05em;color:var(--text-2);font-weight:600;padding:14px 16px 6px}
.mobile-menu .mm-cta{color:var(--pink);font-weight:700}

/* ============================================================
   页脚
   ============================================================ */
footer{border-top:1px solid var(--hairline);padding:60px 0 34px;margin-top:40px}
.foot-grid{display:grid;grid-template-columns:auto auto auto auto auto;justify-content:space-between;gap:34px;margin-bottom:44px}
.foot-brand{max-width:300px}
.foot-brand .brand{margin-bottom:16px}
.foot-brand p{font-size:13.5px;color:var(--text-2);max-width:290px}
.foot-col h5{font-family:var(--font-sans);font-size:13.5px;letter-spacing:.03em;color:var(--text);margin-bottom:16px;font-weight:600}
.foot-col a{display:block;font-size:13.5px;color:var(--text-2);padding:5px 0;transition:color .25s ease;white-space:nowrap}
.foot-col a:hover{color:var(--text)}
.foot-bottom{
  border-top:1px solid var(--hairline);padding-top:24px;
  display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;
  font-size:12px;color:var(--text-3);
}
.foot-bottom .mono{letter-spacing:.06em}
.qv-badge{
  display:inline-flex;align-items:center;gap:7px;font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;
  padding:6px 13px;border-radius:var(--radius-full);border:1px solid var(--hairline);background:var(--glass);
}
.qv-badge .d{width:6px;height:6px;border-radius:50%;background:var(--grad)}

/* ============================================================
   通用组件
   ============================================================ */
/* 章节 */
.sec{padding:104px 0 30px}
.sec-tight{padding:70px 0 20px}

/* 规格表 */
.spec-table{width:100%;border-collapse:collapse;font-size:13.5px}
.spec-table th,.spec-table td{
  text-align:left;padding:13px 16px;border-bottom:1px solid var(--hairline);
  vertical-align:top;
}
.spec-table th{
  font-weight:600;color:var(--text-2);font-size:12.5px;white-space:nowrap;
  background:var(--glass);width:190px;
}
.spec-table td{color:var(--text)}
.spec-table tr:last-child th,.spec-table tr:last-child td{border-bottom:none}
.spec-table .val{font-family:var(--font-mono);font-size:13px;letter-spacing:-.01em}
.spec-wrap{overflow:hidden;border-radius:var(--radius-lg)}
.spec-head{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;border-bottom:1px solid var(--hairline);flex-wrap:wrap;
}
.spec-head h3{font-size:17px;font-weight:700;display:flex;align-items:center;gap:10px}
.spec-head .model{
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.04em;color:var(--cyan);
  padding:6px 13px;border-radius:var(--radius-full);
  background:rgba(6,182,212,.1);border:1px solid rgba(6,182,212,.22);
}
/* 横向滚动表格（移动端） */
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.table-scroll table{min-width:720px}
.data-table{width:100%;border-collapse:collapse;font-size:13px}
.data-table th,.data-table td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--hairline);white-space:nowrap}
.data-table thead th{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;color:var(--text-3);
  font-weight:500;background:var(--glass);
}
.data-table tbody tr:hover{background:var(--glass)}
.data-table .m{font-family:var(--font-mono);font-size:12.5px;color:var(--cyan)}
.data-table td:first-child{font-weight:600}

/* 指标卡 */
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.metric{padding:24px 22px;position:relative;overflow:hidden;transition:transform .45s var(--ease)}
.metric:hover{transform:translateY(-5px)}
.metric::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:var(--radius-full);background:var(--grad)}
.metric.v::before{background:var(--violet)}
.metric.p::before{background:var(--pink)}
.metric.c::before{background:var(--cyan)}
.metric .num{font-family:var(--font-mono);font-size:clamp(1.35rem,2.2vw,1.75rem);font-weight:700;letter-spacing:-.02em;padding-left:14px}
.metric .num small{font-size:.55em;font-weight:500;color:var(--text-2);margin-left:2px}
.metric .lb{font-size:12.5px;color:var(--text-2);padding-left:14px;margin-top:4px}
.metric .src{font-size:11px;color:var(--text-3);padding-left:14px;margin-top:7px;font-family:var(--font-mono)}

/* 特性卡 */
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.feat{padding:28px 26px;position:relative;overflow:hidden;transition:transform .45s var(--ease)}
.feat:hover{transform:translateY(-7px)}
.feat::before{
  content:"";position:absolute;inset:0;border-radius:inherit;opacity:0;
  background:radial-gradient(340px 200px at 20% 0%,rgba(124,58,237,.13),transparent 70%);
  transition:opacity .45s ease;pointer-events:none;
}
.feat:hover::before{opacity:1}
.feat-ico{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;margin-bottom:17px;
  background:var(--glass-strong);border:1px solid var(--hairline);
}
.feat-ico svg{width:20px;height:20px}
.feat.v .feat-ico{color:var(--violet)}
.feat.p .feat-ico{color:var(--pink)}
.feat.c .feat-ico{color:var(--cyan)}
.feat h3{font-size:16.5px;font-weight:700;letter-spacing:-.01em;margin-bottom:8px}
.feat p{font-size:13.5px;color:var(--text-2)}
.feat .tag{position:absolute;top:24px;right:24px;font-family:var(--font-mono);font-size:10px;letter-spacing:.16em;color:var(--text-3)}

/* 图标块 */
.icon-tile{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;flex:none;
  background:var(--glass-strong);border:1px solid var(--hairline);
}
.icon-tile svg{width:19px;height:19px}
.icon-tile.v{color:var(--violet)}
.icon-tile.p{color:var(--pink)}
.icon-tile.c{color:var(--cyan)}

/* 表格说明 / 脚注 */
.footnote{
  margin-top:18px;padding-top:15px;border-top:1px solid var(--hairline);
  font-size:12px;color:var(--text-3);line-height:1.7;
}
/* 提示条 */
.notice{
  display:flex;gap:12px;align-items:flex-start;padding:16px 20px;border-radius:var(--radius-md);
  font-size:13.5px;color:var(--text-2);line-height:1.7;
}
.notice svg{width:17px;height:17px;flex:none;margin-top:3px}
.notice.cyan{background:rgba(6,182,212,.07);border:1px solid rgba(6,182,212,.18)}
.notice.cyan svg{color:var(--cyan)}
.notice.pink{background:rgba(236,72,153,.07);border:1px solid rgba(236,72,153,.18)}
.notice.pink svg{color:var(--pink)}
.notice.violet{background:rgba(124,58,237,.08);border:1px solid rgba(124,58,237,.2)}
.notice.violet svg{color:var(--violet)}
/* 默认（未指定色）也给一层玻璃底，避免出现裸文本 */
.notice{background:var(--glass);border:1px solid var(--hairline)}
.notice svg{color:var(--cyan)}
.notice strong{color:var(--text);font-weight:600}

/* 面包屑 */
.crumb{
  display:flex;align-items:center;gap:9px;font-size:12.5px;color:var(--text-3);
  font-family:var(--font-mono);letter-spacing:.04em;margin-bottom:22px;flex-wrap:wrap;
}
.crumb a:hover{color:var(--text-2)}
.crumb .sep{opacity:.5}
.crumb .cur{color:var(--text-2)}

/* 内页 Hero */
.page-hero{padding:150px 0 46px}
.page-hero h1{font-size:clamp(2.1rem,4.4vw,3.3rem);font-weight:800;letter-spacing:-.03em;line-height:1.12;margin:16px 0 18px}
.page-hero .lead{color:var(--text-2);font-size:clamp(1rem,1.5vw,1.12rem);max-width:680px}
.page-hero .actions{display:flex;gap:13px;flex-wrap:wrap;margin-top:30px}

/* 双栏 */
.split{display:grid;grid-template-columns:1.06fr .94fr;gap:44px;align-items:center}
.split.rev .sp-media{order:2}
.sp-media{position:relative}
.sp-media img{border-radius:var(--radius-lg);border:1px solid var(--hairline-2);width:100%}
.sp-media .glow{
  position:absolute;left:50%;bottom:-10%;transform:translateX(-50%);
  width:70%;height:110px;border-radius:50%;
  background:radial-gradient(closest-side,var(--glow-p),transparent);filter:blur(30px);z-index:-1;
}

/* 章节小标题 */
.block-title{display:flex;align-items:center;gap:12px;margin:44px 0 20px}
.block-title .icon-tile{width:36px;height:36px;border-radius:10px}
.block-title .icon-tile svg{width:17px;height:17px}
.block-title h3{font-size:20px;font-weight:700;letter-spacing:-.015em}
.block-title .desc{font-size:13.5px;color:var(--text-3);margin-left:auto}

/* CTA 条 */
.cta-band{padding:56px 44px;text-align:center;position:relative;overflow:hidden;margin-top:40px}
.cta-band::before{
  content:"";position:absolute;top:-110px;left:50%;transform:translateX(-50%);
  width:520px;height:280px;border-radius:50%;pointer-events:none;
  background:radial-gradient(closest-side,var(--glow-v),transparent);
}
.cta-band h2{font-size:clamp(1.5rem,2.6vw,2.1rem);font-weight:800;letter-spacing:-.025em;margin-bottom:13px;position:relative}
.cta-band p{color:var(--text-2);max-width:520px;margin:0 auto 26px;position:relative}
.cta-band .actions{display:flex;gap:13px;justify-content:center;flex-wrap:wrap;position:relative}

/* ============================================================
   首页专属
   ============================================================ */
.hero{padding:164px 0 56px}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:52px;align-items:center}
.hero h1{font-size:clamp(2.5rem,5.6vw,4.2rem);font-weight:800;letter-spacing:-.035em;line-height:1.08;margin:24px 0 22px}
.hero-sub{color:var(--text-2);font-size:clamp(1rem,1.5vw,1.13rem);max-width:530px;margin-bottom:32px}
.hero-sub strong{color:var(--text);font-weight:600}
.hero-cta{display:flex;gap:13px;flex-wrap:wrap;align-items:center}
.hero-note{margin-top:20px;font-size:13px;color:var(--text-3);display:flex;align-items:center;gap:8px}
.hero-note svg{width:15px;height:15px;color:var(--cyan);flex:none}
.hero-visual{position:relative;perspective:1400px}
/* 防止浮动 chip 在窄屏撑出横向滚动条 */
.hero-grid{min-width:0}
.hero-grid>*{min-width:0}
.scene{position:relative;transform-style:preserve-3d}
.cell-card{
  position:relative;border-radius:26px;overflow:hidden;
  border:1px solid var(--hairline-2);
  box-shadow:0 40px 90px rgba(10,11,26,.55);
  transform:rotateX(7deg) rotateY(-11deg);
  transition:transform .45s var(--ease);will-change:transform;
}
.cell-card img{width:100%;aspect-ratio:16/10.2;object-fit:cover}
.cell-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(255,255,255,.16) 0%,transparent 34%);
  mix-blend-mode:screen;pointer-events:none;
}
.chip{
  position:absolute;display:flex;align-items:center;gap:9px;
  padding:11px 16px;border-radius:var(--radius-md);
  font-size:13px;font-weight:600;white-space:nowrap;
  background:var(--glass-strong);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border:1px solid var(--hairline);
  box-shadow:0 18px 44px rgba(10,11,26,.4);will-change:transform;
}
.chip svg{width:16px;height:16px;flex:none}
.chip .sub{display:block;font-family:var(--font-mono);font-size:10px;font-weight:400;color:var(--text-3);letter-spacing:.08em}
.chip-a{top:6%;left:-7%;animation:float-a 7s ease-in-out infinite}
.chip-a svg{color:var(--cyan)}
.chip-b{bottom:16%;right:-6%;animation:float-b 8s ease-in-out infinite}
.chip-b svg{color:var(--pink)}
.chip-c{bottom:-5%;left:9%;animation:float-a 9s ease-in-out infinite reverse}
.chip-c svg{color:var(--violet)}
@keyframes float-a{0%,100%{transform:translateY(0)}50%{transform:translateY(-13px)}}
@keyframes float-b{0%,100%{transform:translateY(0)}50%{transform:translateY(11px)}}
/* 窄屏收敛 chip 外溢，避免出现横向滚动条 */
@media (max-width:1300px){
  .chip-a{left:-2%}
  .chip-b{right:-2%}
}
.visual-glow{
  position:absolute;left:50%;bottom:-13%;transform:translateX(-50%);
  width:74%;height:120px;border-radius:50%;
  background:radial-gradient(closest-side,var(--glow-p),transparent);filter:blur(30px);pointer-events:none;
}

/* 产品线卡片 */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.prod-card{overflow:hidden;display:flex;flex-direction:column;transition:transform .45s var(--ease)}
.prod-card:hover{transform:translateY(-7px)}
.prod-img{position:relative;aspect-ratio:16/9.8;overflow:hidden}
.prod-img img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease)}
.prod-card:hover .prod-img img{transform:scale(1.05)}
.prod-img::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(10,11,26,.62) 0%,transparent 46%);
}
.prod-badge{
  position:absolute;top:13px;left:13px;z-index:2;
  font-family:var(--font-mono);font-size:10px;letter-spacing:.14em;color:#F8FAFC;
  padding:6px 11px;border-radius:var(--radius-full);
  background:rgba(10,11,26,.5);border:1px solid rgba(248,250,252,.22);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.prod-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.prod-body h3{font-size:17.5px;font-weight:700;letter-spacing:-.015em;display:flex;align-items:center;gap:9px}
.prod-body h3 svg{width:18px;height:18px;color:var(--cyan);flex:none}
.prod-scenes{font-size:12px;color:var(--text-3);font-family:var(--font-mono);letter-spacing:.03em;line-height:1.5}
.prod-desc{font-size:13.5px;color:var(--text-2);flex:1}
.prod-model{
  font-family:var(--font-mono);font-size:11px;color:var(--cyan);
  padding:5px 10px;border-radius:var(--radius-sm);
  background:rgba(6,182,212,.09);border:1px solid rgba(6,182,212,.2);
  display:inline-block;
}
.prod-more{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--cyan);margin-top:2px}
.prod-more svg{width:14px;height:14px;transition:transform .3s var(--ease)}
.prod-card:hover .prod-more svg{transform:translateX(4px)}

/* ============================================================
   轮播
   ============================================================ */
.carousel{position:relative;overflow:hidden;border-radius:var(--radius-lg)}
.car-viewport{overflow:hidden;touch-action:pan-y;cursor:grab}
.car-viewport.dragging{cursor:grabbing}
.car-track{display:flex;will-change:transform}
.voice{flex:0 0 100%;padding:8px}
.voice-inner{max-width:780px;margin:0 auto;padding:42px 48px 36px;text-align:center;position:relative}
.voice-inner .qmark{font-family:Georgia,serif;font-size:88px;line-height:1;height:44px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;opacity:.85}
.stars{display:flex;justify-content:center;gap:5px;margin:8px 0 20px}
.stars svg{width:17px;height:17px;color:var(--pink);fill:var(--pink)}
.voice-text{font-size:clamp(1rem,1.7vw,1.18rem);font-weight:500;line-height:1.75;max-width:640px;margin:0 auto 28px}
.voice-person{display:flex;align-items:center;justify-content:center;gap:13px}
.avatar{width:46px;height:46px;border-radius:50%;display:grid;place-items:center;flex:none;background:var(--grad);color:#F8FAFC;font-weight:700;font-size:17px;box-shadow:0 6px 18px rgba(124,58,237,.35)}
.voice:nth-child(even) .avatar{background:var(--grad-cyan)}
.vp-name{font-size:14.5px;font-weight:700;text-align:left}
.vp-role{font-size:12px;color:var(--text-3);text-align:left}
.car-dots{display:flex;justify-content:center;gap:9px;margin-top:26px}
.car-dots button{width:8px;height:8px;border-radius:var(--radius-full);background:var(--hairline-2);transition:width .35s var(--ease),background .35s ease;padding:0}
.car-dots button.active{width:26px;background:var(--grad)}

/* ============================================================
   FAQ
   ============================================================ */
.faq-list{max-width:820px;margin:0 auto;display:grid;gap:12px}
details{border-radius:var(--radius-md);overflow:hidden;transition:border-color .3s ease}
details[open]{border-color:var(--hairline-2)}
summary{
  list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;cursor:pointer;font-size:15.5px;font-weight:600;user-select:none;
}
summary::-webkit-details-marker{display:none}
summary .fx{width:29px;height:29px;border-radius:50%;display:grid;place-items:center;flex:none;background:var(--glass-strong);border:1px solid var(--hairline);transition:transform .4s var(--ease)}
summary .fx svg{width:14px;height:14px;color:var(--text-2)}
details[open] summary .fx{transform:rotate(45deg)}
details[open] summary .fx svg{color:var(--pink)}
.faq-a{padding:0;max-height:0;overflow:hidden}
details[open] .faq-a{animation:faqIn .5s var(--ease) forwards}
@keyframes faqIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}
.faq-a-inner{padding:2px 24px 22px;font-size:14px;color:var(--text-2);line-height:1.78}
.faq-a-inner strong{color:var(--text)}

/* ============================================================
   表单 / Toast
   ============================================================ */
.form-card{padding:44px 40px;position:relative;overflow:hidden}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px}
.form-row.full{grid-template-columns:1fr}
.field{display:flex;flex-direction:column;gap:7px}
.field label{font-size:12.5px;font-weight:600;color:var(--text-2)}
.field label .req{color:var(--pink)}
.field input,.field select,.field textarea{
  width:100%;padding:13px 17px;border-radius:var(--radius-md);
  background:var(--glass-strong);border:1px solid var(--hairline-2);color:var(--text);
  font-size:14.5px;font-family:inherit;outline:none;
  transition:border-color .3s ease;
}
.field textarea{resize:vertical;min-height:96px}
/* 下拉框：自定义箭头（appearance:none 会移除原生箭头），显式选项配色防止白底白字 */
.field select{
  appearance:none;-webkit-appearance:none;
  color:var(--text);
  color-scheme:dark;
  line-height:1.2;
  padding-right:44px;
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='9' viewBox='0 0 14 9'%3E%3Cpath d='M1 1.5 7 7.5 13 1.5' fill='none' stroke='rgba(248,250,252,.75)' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 18px center;
  cursor:pointer;
}
.field select option{background:#101128;color:#F8FAFC}
.field select option:checked{background:#1C1D3E;color:#F8FAFC}
[data-theme="light"] .field select{color-scheme:light;background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='9' viewBox='0 0 14 9'%3E%3Cpath d='M1 1.5 7 7.5 13 1.5' fill='none' stroke='rgba(15,23,42,.65)' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E")}
[data-theme="light"] .field select option{background:#FFFFFF;color:#0F172A}
[data-theme="light"] .field select option:checked{background:#EDE9FE;color:#0F172A}
.field select:invalid{color:var(--text)}
/* 未选择时占位文案弱化 */
.field select:has(option[value=""]:checked){color:var(--text-3)}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{border-color:rgba(124,58,237,.55)}
.field input.err,.field textarea.err,.field select.err{border-color:var(--pink)}
.btn .spinner{width:16px;height:16px;border-radius:50%;display:none;flex:none;border:2px solid rgba(248,250,252,.35);border-top-color:#F8FAFC;animation:spin .7s linear infinite}
.btn.loading .spinner{display:block}
.btn.loading .ico{display:none}
@keyframes spin{to{transform:rotate(360deg)}}
.form-tip{margin-top:16px;font-size:12px;color:var(--text-3);text-align:center}

.toast{
  position:fixed;bottom:28px;left:50%;z-index:200;
  display:flex;align-items:center;gap:11px;
  padding:14px 22px;border-radius:var(--radius-md);
  background:var(--glass-strong);
  -webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
  border:1px solid var(--hairline-2);
  box-shadow:0 20px 50px rgba(10,11,26,.5);
  font-size:14px;font-weight:500;
  transform:translate(-50%,80px);opacity:0;pointer-events:none;
  transition:transform .5s var(--ease),opacity .5s ease;
  max-width:calc(100vw - 40px);
}
.toast.show{transform:translate(-50%,0);opacity:1}
.toast .t-bad{display:none}
.toast.bad .t-ok{display:none}
.toast.bad .t-bad{display:block}
.toast svg{width:18px;height:18px;flex:none}
.toast.ok svg{color:var(--cyan)}
.toast.bad svg{color:var(--pink)}

/* ============================================================
   新闻
   ============================================================ */
.news-lead{
  display:grid;grid-template-columns:1.1fr .9fr;gap:0;overflow:hidden;margin-bottom:26px;
}
.news-lead .nl-body{padding:40px 42px;display:flex;flex-direction:column;justify-content:center;gap:16px}
.news-lead .nl-media{position:relative;min-height:320px;background:var(--grad);overflow:hidden}
.news-lead .nl-media::before{content:"文";position:absolute;left:-30px;bottom:-70px;font-size:280px;font-weight:800;color:rgba(248,250,252,.13);line-height:1;pointer-events:none}
.news-lead .nl-media .nl-tag{position:absolute;top:26px;left:30px;font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;color:rgba(248,250,252,.8)}
.news-lead .nl-media .nl-name{position:absolute;bottom:32px;left:30px;color:#F8FAFC}
.news-lead .nl-media .nl-name div:first-child{font-size:30px;font-weight:800;letter-spacing:-.01em}
.news-lead .nl-media .nl-name div:last-child{font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;opacity:.72}
.news-lead h3{font-size:clamp(1.3rem,2.2vw,1.7rem);font-weight:800;letter-spacing:-.02em;line-height:1.3}
.news-lead p{font-size:14.5px;color:var(--text-2)}
.news-meta{display:flex;align-items:center;gap:12px;font-family:var(--font-mono);font-size:11.5px;color:var(--text-3);flex-wrap:wrap}
.news-meta .pill{padding:4px 11px;border-radius:var(--radius-full);border:1px solid var(--hairline);background:var(--glass)}
.news-list{display:grid;gap:16px}
.news-item{padding:26px 28px;display:grid;grid-template-columns:110px 1fr;gap:24px;transition:transform .45s var(--ease)}
.news-item:hover{transform:translateX(5px)}
.news-item .ni-date{
  font-family:var(--font-mono);font-size:11.5px;color:var(--text-3);letter-spacing:.06em;
  border-right:1px solid var(--hairline);padding-right:20px;
}
.news-item .ni-date strong{display:block;font-size:22px;color:var(--text);font-weight:700;letter-spacing:-.02em;margin-bottom:3px}
.news-item h4{font-size:16.5px;font-weight:700;letter-spacing:-.012em;margin-bottom:9px;line-height:1.42}
.news-item p{font-size:13.5px;color:var(--text-2)}
.news-item .ni-tags{display:flex;gap:8px;margin-top:13px;flex-wrap:wrap}
.news-item .ni-tags span{font-size:11px;font-family:var(--font-mono);letter-spacing:.05em;color:var(--text-3);padding:4px 10px;border-radius:var(--radius-full);border:1px solid var(--hairline)}

/* 新闻 · 头条与列表补充 */
.news-lead .nl-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.news-lead h2{font-size:clamp(1.35rem,2.4vw,1.82rem);font-weight:800;letter-spacing:-.022em;line-height:1.28}
.news-lead p{font-size:14.5px;color:var(--text-2);line-height:1.78}
.news-lead .nl-note{
  font-size:13px;color:var(--text-3);padding-left:16px;border-left:2px solid var(--hairline-2);
  line-height:1.75;
}
.news-lead .chip{
  position:static;animation:none;box-shadow:none;padding:5px 12px;font-size:11.5px;
  font-family:var(--font-mono);letter-spacing:.08em;font-weight:500;
}
.news-lead .chip.v{color:var(--violet);border-color:rgba(124,58,237,.28);background:rgba(124,58,237,.09)}
.news-lead .chip.p{color:var(--pink);border-color:rgba(236,72,153,.28);background:rgba(236,72,153,.09)}
.news-lead .chip.c{color:var(--cyan);border-color:rgba(6,182,212,.28);background:rgba(6,182,212,.09)}

.news-item .ni-side{display:flex;flex-direction:column;gap:9px;border-right:1px solid var(--hairline);padding-right:20px}
.news-item .ni-cat{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;
  padding:5px 11px;border-radius:var(--radius-full);align-self:flex-start;font-weight:500;
}
.news-item .ni-cat.v{color:var(--violet);background:rgba(124,58,237,.1);border:1px solid rgba(124,58,237,.24)}
.news-item .ni-cat.p{color:var(--pink);background:rgba(236,72,153,.1);border:1px solid rgba(236,72,153,.24)}
.news-item .ni-cat.c{color:var(--cyan);background:rgba(6,182,212,.1);border:1px solid rgba(6,182,212,.24)}
.news-item .ni-date{font-family:var(--font-mono);font-size:11.5px;color:var(--text-3);letter-spacing:.05em;border:none;padding:0}
.news-item .ni-main h3{font-size:16.5px;font-weight:700;letter-spacing:-.012em;margin-bottom:9px;line-height:1.45}
.news-item .ni-main p{font-size:13.5px;color:var(--text-2);line-height:1.76}
.news-item .ni-more{
  display:inline-flex;align-items:center;gap:6px;margin-top:12px;
  font-size:13px;font-weight:600;color:var(--cyan);
}
.news-item .ni-more svg{width:14px;height:14px;transition:transform .3s var(--ease)}
.news-item:hover .ni-more svg{transform:translateX(4px)}

/* 色条：为新闻卡左侧加一道主题色 */
.news-item{border-left:2px solid transparent}
.news-item.v{border-left-color:var(--violet)}
.news-item.p{border-left-color:var(--pink)}
.news-item.c{border-left-color:var(--cyan)}

/* 关于页 */
.about-portrait{
  background:var(--grad);position:relative;display:flex;flex-direction:column;justify-content:space-between;
  padding:38px 32px;min-height:420px;border-radius:var(--radius-lg);overflow:hidden;
}
.about-portrait::before{content:"文";position:absolute;right:-26px;bottom:-58px;font-size:240px;font-weight:800;color:rgba(248,250,252,.12);line-height:1;pointer-events:none}
.about-portrait .role{font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;color:rgba(248,250,252,.78)}
.about-portrait .name{font-size:36px;font-weight:800;color:#F8FAFC;letter-spacing:-.01em}
.about-portrait .en{font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;color:rgba(248,250,252,.66)}
.about-quote{position:relative;padding-left:22px;border-left:3px solid;border-image:var(--grad) 1}
.about-quote p{font-size:clamp(1.02rem,1.7vw,1.18rem);font-weight:500;line-height:1.72}
.about-tags{display:flex;gap:9px;flex-wrap:wrap}
.about-tags span{font-size:12px;font-weight:600;color:var(--text-2);padding:7px 14px;border-radius:var(--radius-full);background:var(--glass);border:1px solid var(--hairline)}
.timeline{display:grid;gap:0;position:relative}
.tl-item{display:grid;grid-template-columns:150px 1fr;gap:28px;padding:24px 0;border-bottom:1px solid var(--hairline)}
.tl-item:last-child{border-bottom:none}
.tl-item .tl-when{font-family:var(--font-mono);font-size:12px;color:var(--cyan);letter-spacing:.06em;padding-top:3px}
.tl-item h4{font-size:16px;font-weight:700;margin-bottom:7px}
.tl-item p{font-size:13.5px;color:var(--text-2)}

/* 联系页 */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:stretch}
.contact-card{padding:28px 26px;display:flex;flex-direction:column;gap:10px;transition:transform .45s var(--ease)}
.contact-card:hover{transform:translateY(-6px)}
.contact-card .cc-ico{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:var(--glass-strong);border:1px solid var(--hairline);flex:none;margin-bottom:4px;
}
.contact-card .cc-ico svg{width:20px;height:20px}
.contact-card .cc-ico.v{color:var(--violet)}
.contact-card .cc-ico.p{color:var(--pink)}
.contact-card .cc-ico.c{color:var(--cyan)}
.contact-card h3{font-size:16.5px;font-weight:700;letter-spacing:-.012em}
.contact-card>p{font-size:13.5px;color:var(--text-2);line-height:1.72}
.contact-card .cc-rows{margin-top:auto;padding-top:18px;border-top:1px solid var(--hairline);display:grid;gap:11px}
.contact-card .cc-row{display:flex;justify-content:space-between;gap:14px;align-items:baseline;font-size:13px}
.contact-card .cc-row span{color:var(--text-3);white-space:nowrap}
.contact-card .cc-row b{font-weight:600;text-align:right;color:var(--text)}

.sp-form{position:relative}
.sp-form .form-card{padding:34px 32px}
.form-card .fc-head{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding-bottom:20px;margin-bottom:22px;border-bottom:1px solid var(--hairline);flex-wrap:wrap;
}
.form-card .fc-head h3{font-size:18px;font-weight:700;letter-spacing:-.015em}
.form-card .fc-head span{font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;color:var(--text-3)}
.form-card .field{margin-bottom:16px}
.form-card .fc-submit{width:100%;margin-top:8px;position:relative}
.form-card .fc-submit .bs-load{display:none;align-items:center;justify-content:center;gap:9px}
.form-card .fc-submit.loading .bs-label{display:none}
.form-card .fc-submit.loading .bs-load{display:inline-flex}
.form-card .fc-submit .spin{
  width:15px;height:15px;border-radius:50%;flex:none;
  border:2px solid rgba(248,250,252,.35);border-top-color:#F8FAFC;
  animation:spin .7s linear infinite;
}
.form-card .fc-note{margin-top:14px;font-size:12px;color:var(--text-3);line-height:1.7}

/* 服务流程 */
.flow{display:grid;gap:2px;margin-top:14px}
.flow-item{
  display:grid;grid-template-columns:44px 1fr;grid-template-rows:auto auto;gap:2px 14px;
  padding:13px 0;border-bottom:1px solid var(--hairline);align-items:center;
}
.flow-item:last-child{border-bottom:none}
.flow-item .fi-n{
  grid-row:1/3;font-size:13px;font-weight:700;color:var(--cyan);letter-spacing:.04em;
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:var(--glass-strong);border:1px solid var(--hairline);
}
.flow-item b{font-size:14px;font-weight:700}
.flow-item>span:last-child{font-size:12.5px;color:var(--text-3)}

/* 通用小色标 */
.chip-row{display:flex;gap:9px;flex-wrap:wrap}
.chip-row .chip{
  position:static;animation:none;box-shadow:none;padding:7px 14px;
  font-size:12px;font-weight:600;font-family:var(--font-sans);
}
.chip-row .chip.v{color:var(--violet);border-color:rgba(124,58,237,.28);background:rgba(124,58,237,.09)}
.chip-row .chip.p{color:var(--pink);border-color:rgba(236,72,153,.28);background:rgba(236,72,153,.09)}
.chip-row .chip.c{color:var(--cyan);border-color:rgba(6,182,212,.28);background:rgba(6,182,212,.09)}

/* FAQ 列表容器 + 自定义图标 */
.faq-wrap{max-width:880px;margin:0 auto;display:grid;gap:12px}
.faq-wrap details{background:var(--glass);-webkit-backdrop-filter:blur(18px) saturate(1.4);backdrop-filter:blur(18px) saturate(1.4);border:1px solid var(--hairline)}
.faq-wrap details[open]{border-color:var(--hairline-2)}
.faq-wrap summary{font-size:16px}
.faq-wrap .faq-ico{
  width:29px;height:29px;border-radius:50%;flex:none;position:relative;
  background:var(--glass-strong);border:1px solid var(--hairline);transition:transform .4s var(--ease);
}
.faq-wrap .faq-ico::before,.faq-wrap .faq-ico::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--text-2);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-wrap .faq-ico::before{width:12px;height:1.6px}
.faq-wrap .faq-ico::after{width:1.6px;height:12px;transition:opacity .3s ease}
.faq-wrap details[open] .faq-ico{transform:rotate(90deg)}
.faq-wrap details[open] .faq-ico::after{opacity:0}
.faq-wrap details[open] .faq-ico::before{background:var(--pink)}
.faq-wrap .faq-a p{padding:2px 24px 22px;font-size:14px;color:var(--text-2);line-height:1.8}
.faq-wrap .faq-a a{color:var(--cyan);font-weight:500;border-bottom:1px solid rgba(6,182,212,.3)}
.faq-wrap .faq-a a:hover{color:var(--pink);border-bottom-color:rgba(236,72,153,.4)}

/* 正文内普通链接的可见性 */
.spec-table td a{color:var(--cyan);border-bottom:1px solid rgba(6,182,212,.28)}
.spec-table td a:hover{color:var(--pink);border-bottom-color:rgba(236,72,153,.4)}

/* ============================================================
   双线定位卡（现成产品现货 + 产品定制）
   ============================================================ */
.dual-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.dual-card{padding:34px 32px;display:flex;flex-direction:column;gap:14px}
.dual-card h3{font-size:19px;font-weight:700;letter-spacing:-.01em}
.dual-card p{font-size:14px;color:var(--text-2);line-height:1.72}
.dual-card ul{list-style:none;display:flex;flex-direction:column;gap:9px;margin:2px 0 6px}
.dual-card li{
  position:relative;padding-left:20px;font-size:13.5px;color:var(--text-2);line-height:1.6;
}
.dual-card li::before{
  content:"";position:absolute;left:0;top:8px;width:7px;height:7px;border-radius:50%;
  background:var(--grad);
}
.dual-card .btn{align-self:flex-start;margin-top:auto}
.dual-card li.li-chips{display:flex;flex-wrap:wrap;gap:6px}
.dual-card li.li-chips::before{top:10px}
.scene-tag{font-size:12px;line-height:1.5;color:var(--text-2);white-space:nowrap;padding:3px 10px;border-radius:var(--radius-sm);background:var(--grad-soft);border:1px solid var(--hairline)}
@media (max-width:860px){.dual-grid{grid-template-columns:1fr}}

/* ============================================================
   响应式
   ============================================================ */
/* 英文站导航项明显更长：在 1180~1500px 区间先收紧内距与字号，
   避免「Products & Customization」这类长标签把导航撑到换行。 */
html[lang="en"] .nav-links>a,
html[lang="en"] .nav-drop>button{padding:8px 9px;font-size:13.5px}
@media (max-width:1500px){
  html[lang="en"] .nav-links>a,
  html[lang="en"] .nav-drop>button{padding:8px 7px;font-size:13px}
  html[lang="en"] .nav-inner{gap:14px}
}
@media (max-width:1320px){
  html[lang="en"] .nav-links>a,
  html[lang="en"] .nav-drop>button{padding:8px 6px;font-size:12.5px}
  html[lang="en"] .nav-links{gap:0}
}

@media (max-width:1180px){
  .nav-links>a,.nav-drop>button{padding:8px 9px;font-size:13.5px}
  .nav-inner{gap:12px;padding:13px 18px}
  .brand{gap:10px}
  .brand-cn{font-size:21px}
  .brand-en{font-size:7px}
  .brand-mark{width:30px;height:23.3px}
  .lang-switch{padding:2px}
  .lang-switch .ls-item{padding:4px 7px;font-size:11.5px}
}
@media (max-width:1100px){
  .nav-links>a,.nav-drop>button{padding:8px 11px;font-size:14.5px}
  .nav-inner{gap:18px}
  .brand{gap:12px}
  .brand-cn{font-size:24px}
  .brand-en{font-size:8px}
  .brand-mark{width:35px;height:27.2px}
  .hero-grid{grid-template-columns:1fr;gap:56px}
  .hero{padding-top:140px}
  .hero-sub{max-width:none}
  .feat-grid{grid-template-columns:repeat(2,1fr)}
  .prod-grid{grid-template-columns:repeat(2,1fr)}
  .metric-grid{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:34px}
  .split.rev .sp-media{order:0}
  .news-lead{grid-template-columns:1fr}
  .news-lead .nl-media{min-height:220px;order:-1}
  .contact-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:auto auto;justify-content:space-between;gap:36px 40px}
  .foot-brand{grid-column:1/-1}
}
@media (max-width:1024px){
  /* 折叠为汉堡菜单，避免导航文字被压成竖排；同时露出「获取选型方案」保持行动入口与频道可见性 */
  .nav-links,.nav-actions .btn:not(.nav-cta){display:none}
  .nav-actions .btn.nav-cta{display:inline-flex}
  .menu-btn{display:grid}
  .mobile-menu{display:block}
  .brand-en{display:none}
}
@media (max-width:640px){
  .wrap{padding:0 18px}
  .nav-inner{padding:11px 16px}
  .brand{gap:10px}
  .brand-cn{font-size:21px}
  .brand-lat{font-size:19px}
  .brand-en{font-size:7px}
  .brand-mark{width:29px;height:22.5px}
  .lang-switch{padding:2px;gap:2px}
  .lang-switch .ls-item{padding:4px 6px;font-size:11px}
  /* 英文站三标签（ZH / ZH-TW / EN）比中文宽，窄屏再收一档字距防挤压 */
  html[lang="en"] .lang-switch .ls-item{padding:4px 5px;font-size:10.5px;letter-spacing:0}
  .nav-actions{gap:7px}
  .nav-actions .btn.nav-cta{display:none}
  .sec{padding:74px 0 24px}
  .hero{padding-top:124px}
  .feat-grid,.prod-grid{grid-template-columns:1fr}
  .metric-grid{grid-template-columns:1fr 1fr;gap:14px}
  .form-row{grid-template-columns:1fr}
  .form-card{padding:30px 22px}
  .sp-form .form-card{padding:26px 20px}
  .cta-band{padding:40px 24px}
  .chip-a{left:2%}
  .chip-b{right:2%}
  .voice-inner{padding:32px 22px 28px}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .news-item{grid-template-columns:1fr;gap:14px}
  .news-item .ni-side{
    flex-direction:row;align-items:center;border-right:none;
    border-bottom:1px solid var(--hairline);padding:0 0 12px;gap:12px;
  }
  .news-lead .nl-body{padding:26px 22px}
  .tl-item{grid-template-columns:1fr;gap:8px}
  .about-portrait{min-height:300px}
  .page-hero{padding:118px 0 34px}
  .spec-head{padding:16px 18px}
  .spec-table th{width:120px;font-size:12px;padding:11px 13px}
  .spec-table td{padding:11px 13px;font-size:13px}
  .faq-wrap .faq-a p{padding:2px 18px 20px}
  .faq-wrap summary{padding:17px 18px;font-size:15px}
}

/* ============================================================
   减少动态
   ============================================================ */
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
  .chip{animation:none!important}
  .cell-card{transform:none!important}
}