/* ============================================================
   IC.LTD — 视觉系统
   基调：白底 + 精密数据感 + TI 红点缀 + 深色科技带
   ============================================================ */

:root{
  --ink:#0B0D0F;
  --ink-2:#1C2126;
  --body:#4B5158;
  --muted:#7B828B;
  --line:#E4E6E9;
  --line-2:#CFD4DA;
  --bg:#FFFFFF;
  --bg-alt:#F5F6F8;
  --bg-alt-2:#EDEFF2;
  --deep:#0A1120;
  --deep-2:#111C31;
  --red:#C7001A;
  --red-d:#9E0015;
  --red-soft:#FDF1F2;
  --green:#0F7B3F;
  --green-soft:#EAF6EF;
  --amber:#A96A08;
  --amber-soft:#FDF4E4;
  --blue:#0A5FA8;
  --blue-soft:#EEF5FC;
  --cyan:#3FE0EA;

  --r-sm:3px;
  --r:5px;
  --r-lg:10px;

  --sh-1:0 1px 2px rgba(11,13,15,.06);
  --sh-2:0 4px 14px rgba(11,13,15,.07),0 1px 3px rgba(11,13,15,.05);
  --sh-3:0 18px 48px rgba(11,13,15,.14),0 4px 12px rgba(11,13,15,.07);

  --ctr:1280px;
  --pad:32px;

  --font:"Segoe UI","Helvetica Neue",Helvetica,Arial,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --mono:"Cascadia Mono",ui-monospace,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:120px}
body{
  margin:0;background:var(--bg);color:var(--body);
  font-family:var(--font);font-size:16px;line-height:1.65;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;font-size:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:600;letter-spacing:-.015em;line-height:1.16}
h1{font-size:clamp(34px,4.3vw,58px);letter-spacing:-.028em;line-height:1.06;font-weight:600}
h2{font-size:clamp(25px,2.6vw,38px);letter-spacing:-.022em}
h3{font-size:20px;letter-spacing:-.012em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
figure{margin:0}
::selection{background:var(--red);color:#fff}

.ctr{width:100%;max-width:var(--ctr);margin:0 auto;padding:0 var(--pad)}
.mono{font-family:var(--mono);font-variant-ligatures:none}
.eyebrow{
  font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--red);display:flex;align-items:center;gap:9px;
}
.eyebrow::before{content:"";width:16px;height:2px;background:var(--red);flex:none;display:block}
.lead{font-size:17px;line-height:1.72;color:var(--body);max-width:74ch}
.mut{color:var(--muted)}
.sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 24px;border-radius:var(--r);border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.005em;line-height:1;
  transition:background .16s,border-color .16s,color .16s,transform .16s,box-shadow .16s;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--red);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--red-d)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line-2)}
.btn-ghost:hover{border-color:var(--ink);background:#fff}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#000}
.btn-on-dark{background:transparent;color:#fff;border-color:rgba(255,255,255,.34)}
.btn-on-dark:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-lg{padding:16px 32px;font-size:16px}
.btn svg{width:16px;height:16px;flex:none}

/* ---------- 顶部工具条 ---------- */
.topbar{background:var(--deep);color:rgba(255,255,255,.72);font-size:13px}
.topbar .ctr{display:flex;align-items:center;justify-content:space-between;gap:20px;height:40px}
.topbar a:hover{color:#fff}
.topbar-r{display:flex;align-items:center;gap:22px}
.topbar-l{display:flex;align-items:center;gap:8px}
.dot-live{width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 3px rgba(63,224,234,.18);flex:none}
.topbar-phone{display:flex;align-items:center;gap:7px;color:#fff;font-weight:600}
.topbar-phone svg{width:14px;height:14px}

/* ---------- 主导航 ---------- */
.hdr{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.hdr-in{display:flex;align-items:center;gap:36px;height:74px}
.logo{display:flex;align-items:center;gap:11px;flex:none}
.logo-mark{width:36px;height:36px;flex:none}
.logo-txt{display:flex;flex-direction:column;line-height:1.1}
.logo-name{font-size:19px;font-weight:700;letter-spacing:-.03em;color:var(--ink)}
.logo-name em{font-style:normal;color:var(--red)}
.logo-sub{font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);font-weight:600}
.nav{display:flex;align-items:center;gap:4px;margin-left:6px}
.nav a{position:relative;padding:9px 13px;border-radius:var(--r);font-size:15px;font-weight:500;color:var(--ink-2);transition:color .16s,background .16s}
.nav a:hover{background:var(--bg-alt)}
.nav a.is-on{color:var(--red)}
.nav a.is-on::after{content:"";position:absolute;left:13px;right:13px;bottom:-1px;height:2px;background:var(--red)}
.hdr-r{margin-left:auto;display:flex;align-items:center;gap:14px}
.hdr-search{display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;border:1px solid var(--line-2);border-radius:var(--r);width:230px;background:#fff;transition:border-color .16s,width .2s}
.hdr-search:focus-within{border-color:var(--ink);width:280px}
.hdr-search svg{width:16px;height:16px;color:var(--muted);flex:none}
.hdr-search input{border:0;outline:0;width:100%;background:transparent;font-size:14px;color:var(--ink)}
.hdr-search input::placeholder{color:var(--muted)}
.rfq-btn{position:relative}
.rfq-count{
  position:absolute;top:-7px;right:-7px;min-width:19px;height:19px;padding:0 5px;
  border-radius:10px;background:var(--red);color:#fff;font-size:11px;font-weight:700;
  display:none;align-items:center;justify-content:center;font-family:var(--mono);
}
.rfq-count.on{display:flex}
.burger{display:none;width:42px;height:42px;border:1px solid var(--line-2);border-radius:var(--r);background:#fff;align-items:center;justify-content:center}
.burger svg{width:20px;height:20px}
.mobile-nav{
  display:none;flex-direction:column;padding:10px 24px 20px;border-top:1px solid var(--line);
  background:#fff;box-shadow:0 18px 30px rgba(11,13,15,.09);
}
body.menu-open .mobile-nav{display:flex}
.mobile-nav a{padding:13px 4px;font-size:16px;font-weight:500;color:var(--ink-2);border-bottom:1px solid var(--line)}
.mobile-nav a:last-child{border-bottom:0}
.mobile-nav a:hover{color:var(--red)}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--bg);border-bottom:1px solid var(--line);overflow:hidden}
.hero-grid{
  position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(ellipse 78% 62% at 68% 30%,#000 0%,transparent 72%);
  mask-image:radial-gradient(ellipse 78% 62% at 68% 30%,#000 0%,transparent 72%);
  opacity:.85;
}
.hero-in{position:relative;display:grid;grid-template-columns:1.06fr .94fr;gap:56px;align-items:center;padding-top:76px;padding-bottom:78px}
.hero h1{margin:20px 0 20px}
.hero h1 span{color:var(--red)}
.hero .lead{font-size:17.5px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.hero-trust{display:flex;flex-wrap:wrap;align-items:center;gap:0;margin-top:34px;border-top:1px solid var(--line);padding-top:22px}
.hero-trust li{display:flex;align-items:center;gap:9px;font-size:13.5px;color:var(--ink-2);font-weight:500;padding-right:26px;margin-right:26px;border-right:1px solid var(--line)}
.hero-trust li:last-child{border-right:0;margin-right:0;padding-right:0}
.hero-trust svg{width:15px;height:15px;color:var(--green);flex:none}

/* Hero 右侧：料号卡组合 */
.hero-vis{position:relative;height:430px}
.hv-glow{
  position:absolute;inset:-8% -6%;border-radius:20px;
  background:
    radial-gradient(60% 60% at 76% 16%,rgba(199,0,26,.10),transparent 62%),
    radial-gradient(56% 56% at 16% 86%,rgba(10,95,168,.11),transparent 64%),
    linear-gradient(150deg,#0A1120,#16233D 62%,#0E1A2E);
  box-shadow:var(--sh-3);
}
.hv-glow::after{
  content:"";position:absolute;inset:0;border-radius:20px;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:34px 34px;
  -webkit-mask-image:radial-gradient(ellipse 70% 70% at 50% 40%,#000,transparent 80%);
  mask-image:radial-gradient(ellipse 70% 70% at 50% 40%,#000,transparent 80%);
}
.hv-card{
  position:absolute;left:30px;right:64px;top:52px;background:#fff;border-radius:var(--r-lg);
  box-shadow:0 20px 50px rgba(2,6,16,.34);overflow:hidden;
}
.hv-card-hd{display:flex;align-items:center;justify-content:space-between;padding:16px 18px;border-bottom:1px solid var(--line)}
.hv-pn{font-family:var(--mono);font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-.01em}
.hv-pn-sub{font-size:11.5px;color:var(--muted);margin-top:3px}
.hv-card-bd{padding:6px 18px 16px}
.hv-row{display:flex;align-items:baseline;justify-content:space-between;gap:14px;padding:9px 0;border-bottom:1px dashed var(--line);font-size:13px}
.hv-row:last-child{border-bottom:0}
.hv-row dt{color:var(--muted);flex:none}
.hv-row dd{margin:0;font-family:var(--mono);font-weight:600;color:var(--ink);text-align:right;font-size:12.5px}
.hv-float{
  position:absolute;background:#fff;border-radius:var(--r);box-shadow:0 12px 32px rgba(2,6,16,.2);
  padding:13px 16px;display:flex;align-items:center;gap:11px;
}
.hv-f1{right:14px;top:14px;animation:float 6s ease-in-out infinite}
.hv-f2{left:6px;bottom:44px;animation:float 7.5s ease-in-out infinite .8s}
.hv-f3{right:38px;bottom:14px;animation:float 6.8s ease-in-out infinite .4s}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-9px)}}
.hv-f-ic{width:32px;height:32px;border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center;flex:none;background:var(--red-soft)}
.hv-f-ic svg{width:17px;height:17px;color:var(--red)}
.hv-f-t{font-size:13px;font-weight:700;color:var(--ink);line-height:1.25}
.hv-f-s{font-size:11.5px;color:var(--muted);line-height:1.3;margin-top:2px}

/* ---------- 通用区块 ---------- */
.sec{padding:88px 0}
.sec-alt{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-hd{max-width:800px;margin-bottom:46px}
.sec-hd h2{margin:16px 0 14px}
.sec-hd-row{display:flex;align-items:flex-end;justify-content:space-between;gap:40px;margin-bottom:46px}
.sec-hd-row .sec-hd{margin-bottom:0}

/* ---------- 服务能力 ---------- */
.cap-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.cap{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px 26px 30px;transition:border-color .2s,box-shadow .2s,transform .2s;position:relative;overflow:hidden;
}
.cap::before{content:"";position:absolute;left:0;top:0;width:100%;height:3px;background:var(--red);transform:scaleX(0);transform-origin:left;transition:transform .3s}
.cap:hover{border-color:var(--line-2);box-shadow:var(--sh-2);transform:translateY(-3px)}
.cap:hover::before{transform:scaleX(1)}
.cap-ic{width:44px;height:44px;border-radius:var(--r);background:var(--red-soft);display:flex;align-items:center;justify-content:center;margin-bottom:20px}
.cap-ic svg{width:22px;height:22px;color:var(--red)}
.cap h3{font-size:17.5px;margin-bottom:10px}
.cap p{font-size:14.5px;line-height:1.68;color:var(--body)}
.cap-n{position:absolute;right:22px;top:22px;font-family:var(--mono);font-size:11px;font-weight:700;color:var(--line-2)}

/* ---------- TI 专区（深色科技带） ---------- */
.ti{background:var(--deep);color:rgba(255,255,255,.7);position:relative;overflow:hidden;padding:78px 0 84px}
.ti-bg{
  position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(ellipse 70% 90% at 82% 12%,#000,transparent 76%);
  mask-image:radial-gradient(ellipse 70% 90% at 82% 12%,#000,transparent 76%);
}
.ti-scan{
  position:absolute;left:0;right:0;top:0;height:1px;pointer-events:none;
  background:linear-gradient(90deg,transparent,rgba(63,224,234,.7),transparent);
  animation:scan 7s linear infinite;
}
@keyframes scan{0%{transform:translateY(0);opacity:0}8%{opacity:1}92%{opacity:1}100%{transform:translateY(760px);opacity:0}}
.ti-in{position:relative}
.ti-hd{display:grid;grid-template-columns:1fr 400px;gap:56px;align-items:start;margin-bottom:42px}
.ti-brand{display:flex;align-items:center;gap:16px;margin-bottom:22px}
.ti-logo{
  width:74px;height:44px;border-radius:var(--r);background:var(--red);flex:none;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-weight:700;font-size:19px;color:#fff;letter-spacing:.02em;
}
.ti-brand-t{font-size:24px;font-weight:700;color:#fff;letter-spacing:-.02em;line-height:1.2}
.ti-brand-s{font-size:12.5px;color:rgba(255,255,255,.5);letter-spacing:.06em;text-transform:uppercase;margin-top:4px}
.ti h2{color:#fff;margin-bottom:16px}
.ti .lead{color:rgba(255,255,255,.68);font-size:16px}
.ti-facts{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.12);border-radius:var(--r-lg);overflow:hidden}
.ti-fact{background:rgba(255,255,255,.035);padding:20px 22px}
.ti-fact-v{font-family:var(--mono);font-size:24px;font-weight:700;color:#fff;letter-spacing:-.02em}
.ti-fact-l{font-size:12.5px;color:rgba(255,255,255,.5);margin-top:6px}

/* TI 系列 Tabs */
.ti-tabs{display:flex;gap:8px;flex-wrap:wrap;border-bottom:1px solid rgba(255,255,255,.14);margin-bottom:30px;padding-bottom:0}
.ti-tab{
  background:transparent;border:0;color:rgba(255,255,255,.62);font-size:14.5px;font-weight:600;
  padding:12px 16px;border-bottom:2px solid transparent;margin-bottom:-1px;transition:color .16s,border-color .16s;
  display:flex;align-items:center;gap:8px;
}
.ti-tab:hover{color:#fff}
.ti-tab.is-on{color:#fff;border-bottom-color:var(--red)}
.ti-tab b{font-family:var(--mono);font-size:11px;font-weight:700;color:rgba(255,255,255,.45);background:rgba(255,255,255,.09);padding:2px 7px;border-radius:9px}
.ti-tab.is-on b{color:#fff;background:rgba(199,0,26,.55)}

.ti-panel{display:none}
.ti-panel.is-on{display:block;animation:fade .32s ease}
@keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.ti-series{display:flex;align-items:flex-start;justify-content:space-between;gap:36px;margin-bottom:22px}
.ti-series h3{color:#fff;font-size:19px;margin-bottom:8px}
.ti-series p{font-size:14.5px;color:rgba(255,255,255,.62);max-width:76ch;line-height:1.7}
.ti-chip{
  display:inline-flex;align-items:center;gap:7px;flex:none;font-size:12px;font-weight:700;
  padding:6px 12px;border-radius:20px;letter-spacing:.03em;
}
.ti-chip i{width:6px;height:6px;border-radius:50%;display:block;flex:none}
.chip-ai{background:rgba(199,0,26,.2);color:#FF8A97;border:1px solid rgba(199,0,26,.42)}
.chip-ai i{background:#FF5C71}
.chip-in{background:rgba(15,123,63,.2);color:#6FE0A0;border:1px solid rgba(15,123,63,.44)}
.chip-in i{background:#3FD684}

/* TI 产品表 */
.ptable{border:1px solid rgba(255,255,255,.14);border-radius:var(--r-lg);overflow:hidden;background:rgba(255,255,255,.028)}
.ptable-hd,.prow{display:grid;grid-template-columns:1.05fr 2.1fr 1.5fr 1fr .85fr .8fr 118px;align-items:center;gap:16px;padding:0 20px}
.ptable-hd{
  height:44px;background:rgba(255,255,255,.05);border-bottom:1px solid rgba(255,255,255,.12);
  font-size:11.5px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:rgba(255,255,255,.48);
}
.prow{border-bottom:1px solid rgba(255,255,255,.075);min-height:66px;cursor:pointer;transition:background .16s}
.prow:last-child{border-bottom:0}
.prow:hover{background:rgba(255,255,255,.05)}
.prow-pn{font-family:var(--mono);font-size:14.5px;font-weight:700;color:#fff;letter-spacing:-.01em}
.prow-pn:hover{color:#FF7C8B}
.prow-desc{font-size:13.5px;color:rgba(255,255,255,.72);line-height:1.5}
.prow-key{font-family:var(--mono);font-size:12px;color:rgba(255,255,255,.5);line-height:1.6}
.prow-pkg{font-size:12.5px;color:rgba(255,255,255,.62);font-family:var(--mono)}
.prow-stock{font-family:var(--mono);font-size:13px;font-weight:600;color:#fff}
.prow-stock em{display:block;font-style:normal;font-size:11px;font-weight:500;color:rgba(255,255,255,.45);margin-top:2px;font-family:var(--font)}
.prow-stock.low{color:#FFC46B}
.prow-price{font-family:var(--mono);font-size:13.5px;font-weight:700;color:#fff}
.prow-btn{
  border:1px solid rgba(255,255,255,.3);border-radius:var(--r-sm);background:transparent;color:#fff;
  font-size:12.5px;font-weight:600;padding:7px 12px;transition:background .16s,border-color .16s;white-space:nowrap;
}
.prow:hover .prow-btn{background:var(--red);border-color:var(--red)}
.ti-note{margin-top:18px;display:flex;flex-wrap:wrap;align-items:center;gap:20px;font-size:13px;color:rgba(255,255,255,.5)}
.ti-note .btn{margin-left:auto}

/* ---------- 品牌墙 ---------- */
.bw-tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:30px}
.bw-tab{
  background:#fff;border:1px solid var(--line-2);border-radius:20px;padding:9px 17px;
  font-size:14px;font-weight:600;color:var(--ink-2);transition:all .16s;display:flex;align-items:center;gap:8px;
}
.bw-tab:hover{border-color:var(--ink)}
.bw-tab.is-on{background:var(--ink);border-color:var(--ink);color:#fff}
.bw-tab b{font-family:var(--mono);font-size:11px;font-weight:700;color:var(--muted)}
.bw-tab.is-on b{color:rgba(255,255,255,.6)}
.bw-note{display:flex;align-items:baseline;justify-content:space-between;gap:24px;margin-bottom:18px;flex-wrap:wrap}
.bw-note h3{font-size:17px}
.bw-note span{font-size:13.5px;color:var(--muted);font-family:var(--mono)}
.bw-panel{display:none}
.bw-panel.is-on{display:block;animation:fade .3s ease}
.bw-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.bc{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:20px;
  display:flex;flex-direction:column;gap:14px;transition:border-color .2s,box-shadow .2s,transform .2s;
}
.bc:hover{border-color:var(--line-2);box-shadow:var(--sh-2);transform:translateY(-3px)}
.bc-top{display:flex;align-items:center;gap:12px}
.bc-logo{
  width:46px;height:46px;border-radius:var(--r);flex:none;display:flex;align-items:center;justify-content:center;
  color:#fff;font-family:var(--mono);font-size:12px;font-weight:700;letter-spacing:-.02em;text-align:center;line-height:1.05;padding:3px;
}
.bc-name{display:block;font-size:15px;font-weight:700;color:var(--ink);line-height:1.25;letter-spacing:-.01em}
.bc-zh{display:block;font-size:12.5px;color:var(--muted);margin-top:3px}
.bc-tags{display:flex;flex-wrap:wrap;gap:6px}
.bc-tag{font-size:11.5px;padding:4px 9px;border-radius:var(--r-sm);background:var(--bg-alt);color:var(--ink-2);font-weight:500;border:1px solid var(--line)}
.bc-ft{margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding-top:13px;border-top:1px solid var(--line)}
.bc-models{font-family:var(--mono);font-size:12px;color:var(--muted)}
.bc-models b{color:var(--ink);font-size:13.5px}
.bc-link{font-size:13px;font-weight:600;color:var(--red);display:flex;align-items:center;gap:5px}
.bc-link svg{width:14px;height:14px;transition:transform .16s}
.bc:hover .bc-link svg{transform:translateX(3px)}

/* ---------- 应用场景 ---------- */
.sol-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.sol{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:30px;
  display:flex;flex-direction:column;gap:18px;transition:border-color .2s,box-shadow .2s;
  position:relative;overflow:hidden;
}
.sol:hover{border-color:var(--line-2);box-shadow:var(--sh-2)}
.sol-top{display:flex;align-items:flex-start;justify-content:space-between;gap:20px}
.sol-n{font-family:var(--mono);font-size:34px;font-weight:700;color:var(--line-2);letter-spacing:-.04em;line-height:1}
.sol h3{font-size:18px;margin-bottom:7px}
.sol-scene{font-size:13px;color:var(--red);font-weight:600;font-family:var(--mono);letter-spacing:.01em}
.sol ul{display:flex;flex-direction:column;gap:10px}
.sol li{display:flex;gap:10px;font-size:14px;line-height:1.6;color:var(--body)}
.sol li svg{width:15px;height:15px;color:var(--red);flex:none;margin-top:4px}
.sol-parts{display:flex;flex-wrap:wrap;gap:6px;padding-top:16px;border-top:1px solid var(--line);margin-top:auto}
.sol-part{
  font-family:var(--mono);font-size:11.5px;font-weight:600;color:var(--ink);background:var(--bg-alt);
  border:1px solid var(--line);padding:4px 9px;border-radius:var(--r-sm);transition:all .16s;
}
.sol-part:hover{background:var(--red);border-color:var(--red);color:#fff}

/* ---------- 流程 + FAQ ---------- */
.pf-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:64px;align-items:start}
.flow{display:flex;flex-direction:column;gap:0}
.flow li{display:flex;gap:22px;padding:24px 0;border-bottom:1px solid var(--line)}
.flow li:first-child{padding-top:0}
.flow li:last-child{border-bottom:0;padding-bottom:0}
.flow-n{
  width:44px;height:44px;flex:none;border-radius:50%;border:1.5px solid var(--line-2);
  display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:14px;font-weight:700;color:var(--ink);
  background:#fff;transition:all .2s;
}
.flow li:hover .flow-n{background:var(--red);border-color:var(--red);color:#fff}
.flow h3{font-size:16.5px;margin-bottom:7px}
.flow p{font-size:14.5px;line-height:1.68}

.faq{border-top:1px solid var(--line)}
.faq-i{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;background:none;border:0;text-align:left;padding:20px 40px 20px 0;position:relative;
  font-size:15.5px;font-weight:600;color:var(--ink);line-height:1.5;transition:color .16s;
}
.faq-q:hover{color:var(--red)}
.faq-q::after{
  content:"";position:absolute;right:6px;top:50%;width:11px;height:11px;
  border-right:1.8px solid var(--muted);border-bottom:1.8px solid var(--muted);
  transform:translateY(-70%) rotate(45deg);transition:transform .22s;
}
.faq-i.on .faq-q::after{transform:translateY(-30%) rotate(-135deg);border-color:var(--red)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-i.on .faq-a{max-height:420px}
.faq-a p{padding:0 40px 22px 0;font-size:14.5px;line-height:1.75;color:var(--body)}

/* ---------- 终局 CTA ---------- */
.cta{background:var(--deep);color:#fff;position:relative;overflow:hidden}
.cta-bg{
  position:absolute;inset:0;
  background:radial-gradient(70% 130% at 12% 0%,rgba(199,0,26,.34),transparent 62%),radial-gradient(60% 120% at 92% 100%,rgba(10,95,168,.32),transparent 62%);
}
.cta-in{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;padding-top:72px;padding-bottom:72px}
.cta h2{color:#fff;margin-bottom:16px}
.cta p{color:rgba(255,255,255,.68);font-size:16.5px;line-height:1.7;max-width:56ch}
.cta-btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.cta-stats{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.13);border-radius:var(--r-lg);overflow:hidden}
.cta-stat{background:rgba(9,16,30,.72);padding:24px 22px}
.cta-stat b{display:block;font-family:var(--mono);font-size:27px;font-weight:700;color:#fff;letter-spacing:-.03em;line-height:1.1}
.cta-stat span{font-size:12.5px;color:rgba(255,255,255,.5);margin-top:7px;display:block}

/* ---------- Footer ---------- */
.ftr{background:#070B14;color:rgba(255,255,255,.55);font-size:14px;padding:64px 0 0}
.ftr-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1.15fr;gap:40px;padding-bottom:50px}
.ftr .logo-name{color:#fff}
.ftr .logo-sub{color:rgba(255,255,255,.4)}
.ftr-tagline{margin-top:20px;font-size:13.5px;line-height:1.75;max-width:34ch;color:rgba(255,255,255,.5)}
.ftr-cert{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.ftr-cert span{font-size:11px;font-family:var(--mono);border:1px solid rgba(255,255,255,.16);border-radius:var(--r-sm);padding:4px 9px;color:rgba(255,255,255,.6)}
.ftr h4{color:#fff;font-size:13px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;margin:0 0 20px}
.ftr-col li{margin-bottom:12px}
.ftr-col a:hover{color:#fff}
.ftr-col address{font-style:normal;line-height:1.75;margin-bottom:14px}
.ftr-phone{color:#fff;font-weight:700;font-size:18px;font-family:var(--mono);display:block;margin-bottom:6px}
.ftr-bot{border-top:1px solid rgba(255,255,255,.1);padding:22px 0;display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between;font-size:13px}
.ftr-bot-links{display:flex;flex-wrap:wrap;gap:22px}
.ftr-bot a:hover{color:#fff}

/* ---------- 页头（内页） ---------- */
.phead{background:var(--bg-alt);border-bottom:1px solid var(--line);padding:52px 0 46px}
.crumb{display:flex;align-items:center;gap:9px;font-size:13px;color:var(--muted);margin-bottom:18px}
.crumb a:hover{color:var(--red)}
.crumb svg{width:13px;height:13px}
.phead h1{font-size:clamp(30px,3.2vw,44px);margin-bottom:16px}
.phead .lead{font-size:16.5px}

/* ---------- 型号详情页 ---------- */
.pdp-top{display:grid;grid-template-columns:1fr 380px;gap:52px;align-items:start;padding-top:48px;padding-bottom:56px}
.pdp-pn{font-family:var(--mono);font-size:clamp(26px,2.8vw,38px);font-weight:700;color:var(--ink);letter-spacing:-.02em;line-height:1.1}
.pdp-mfr{font-size:14px;color:var(--muted);margin-top:10px}
.pdp-mfr b{color:var(--ink)}
.pdp-desc{font-size:16.5px;color:var(--body);margin-top:18px;line-height:1.7}
.pdp-kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:32px}
.pdp-kpi{border:1px solid var(--line);border-radius:var(--r);padding:16px 18px;background:#fff}
.pdp-kpi-l{font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:700}
.pdp-kpi-v{font-family:var(--mono);font-size:18px;font-weight:700;color:var(--ink);margin-top:8px;letter-spacing:-.02em}
.pdp-buy{
  background:#fff;border:1px solid var(--line-2);border-radius:var(--r-lg);padding:26px;
  box-shadow:var(--sh-2);position:sticky;top:104px;
}
.pdp-price{display:flex;align-items:baseline;gap:10px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.pdp-price b{font-family:var(--mono);font-size:32px;font-weight:700;color:var(--ink);letter-spacing:-.03em}
.pdp-price span{font-size:13px;color:var(--muted)}
.pdp-tiers{display:flex;flex-direction:column;gap:0;margin:6px 0 18px}
.pdp-tier{display:flex;align-items:center;justify-content:space-between;padding:11px 0;border-bottom:1px dashed var(--line);font-size:13.5px}
.pdp-tier:last-child{border-bottom:0}
.pdp-tier span{color:var(--muted);font-family:var(--mono);font-size:12.5px}
.pdp-tier b{font-family:var(--mono);font-size:14px;color:var(--ink);font-weight:700}
.pdp-meta{display:flex;flex-direction:column;gap:11px;padding:18px 0;border-top:1px solid var(--line);font-size:13.5px}
.pdp-meta div{display:flex;justify-content:space-between;gap:16px}
.pdp-meta dt{color:var(--muted)}
.pdp-meta dd{margin:0;font-weight:600;color:var(--ink);text-align:right}
.pdp-acts{display:flex;flex-direction:column;gap:10px;margin-top:8px}
.pdp-acts .btn{width:100%}

.spec-wrap{border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:#fff}
.spec-hd{background:var(--bg-alt);padding:15px 24px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:16px}
.spec-hd h3{font-size:15.5px}
.spec-hd span{font-family:var(--mono);font-size:12px;color:var(--muted)}
.spec{border-collapse:collapse;width:100%;font-size:14px}
.spec tr{border-bottom:1px solid var(--line)}
.spec tr:last-child{border-bottom:0}
.spec tr:nth-child(even){background:#FBFBFC}
.spec th{text-align:left;font-weight:600;color:var(--muted);padding:14px 24px;width:38%;vertical-align:top;font-size:13.5px}
.spec td{padding:14px 24px;color:var(--ink);font-family:var(--mono);font-size:13.5px;font-weight:500}
.spec td.txt{font-family:var(--font);font-weight:400}

.sub-hd{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin:56px 0 24px}
.sub-hd h2{font-size:24px}
.sub-hd p{font-size:14.5px;color:var(--muted)}

.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.rel{border:1px solid var(--line);border-radius:var(--r);padding:18px;background:#fff;transition:all .18s;display:block}
.rel:hover{border-color:var(--red);box-shadow:var(--sh-2)}
.rel-pn{font-family:var(--mono);font-size:15px;font-weight:700;color:var(--ink)}
.rel-d{font-size:13px;color:var(--body);margin-top:8px;line-height:1.55}
.rel-m{font-family:var(--mono);font-size:12px;color:var(--muted);margin-top:12px;padding-top:11px;border-top:1px solid var(--line);display:flex;justify-content:space-between}

/* ---------- 品牌大全 ---------- */
.newb-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.newb{border:1px solid var(--line);border-radius:var(--r-lg);background:#fff;padding:22px;display:flex;flex-direction:column;gap:14px;transition:all .18s}
.newb:hover{border-color:var(--line-2);box-shadow:var(--sh-2)}
.newb-top{display:flex;align-items:center;gap:11px}
.newb-logo{width:40px;height:40px;border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center;color:#fff;font-family:var(--mono);font-weight:700;font-size:11px;flex:none;text-align:center;line-height:1.05;padding:3px}
.newb-n{display:block;font-size:14.5px;font-weight:700;color:var(--ink)}
.newb-z{display:block;font-size:12px;color:var(--muted);margin-top:2px}
.newb p{font-size:13.5px;line-height:1.68;color:var(--body)}
.newb-badge{font-size:11px;font-weight:700;color:var(--red);background:var(--red-soft);border-radius:var(--r-sm);padding:3px 8px;align-self:flex-start}

.cats{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}
.cat{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  border:1px solid var(--line);border-radius:var(--r);background:#fff;padding:13px 16px;
  font-size:13.5px;color:var(--ink-2);font-weight:500;transition:all .16s;
}
.cat:hover{border-color:var(--red);color:var(--red)}
.cat b{font-family:var(--mono);font-size:11.5px;color:var(--muted);flex:none}
.cat:hover b{color:var(--red)}

.az{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:36px}
.az a{
  width:36px;height:36px;border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;
  display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:13px;font-weight:700;color:var(--ink-2);
  transition:all .16s;
}
.az a:hover{background:var(--ink);border-color:var(--ink);color:#fff}
.az a.off{opacity:.32;pointer-events:none}

.letter{margin-bottom:40px;scroll-margin-top:120px}
.letter-hd{
  display:flex;align-items:center;gap:14px;margin-bottom:18px;
  border-bottom:2px solid var(--ink);padding-bottom:11px;
}
.letter-hd b{font-family:var(--mono);font-size:22px;font-weight:700;color:var(--ink)}
.letter-hd span{font-size:13px;color:var(--muted);font-family:var(--mono)}
.letter-list{display:grid;grid-template-columns:repeat(6,1fr);gap:2px 18px}
.letter-list a{
  display:flex;align-items:center;gap:9px;padding:8px 9px;border-radius:var(--r-sm);font-size:13.5px;
  color:var(--ink-2);transition:background .14s,color .14s;
}
.letter-list a:hover{background:var(--bg-alt);color:var(--red)}
.letter-list a i{
  width:19px;height:19px;border-radius:3px;flex:none;font-style:normal;
  font-family:var(--mono);font-size:7.5px;font-weight:700;color:#fff;
  display:flex;align-items:center;justify-content:center;text-align:center;line-height:1;padding:2px;
}
.letter-list a em{font-style:normal;font-size:12px;color:var(--muted)}

/* ---------- 询价中心 ---------- */
.enq-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:52px;align-items:start;padding-top:56px;padding-bottom:80px}
.form-sec{margin-bottom:34px}
.form-sec-hd{display:flex;align-items:center;gap:12px;margin-bottom:20px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.form-sec-n{
  width:26px;height:26px;border-radius:50%;background:var(--ink);color:#fff;flex:none;
  display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:12px;font-weight:700;
}
.form-sec-hd h3{font-size:16px}
.form-sec-hd span{margin-left:auto;font-size:12.5px;color:var(--muted)}
.fgrid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.fld{display:flex;flex-direction:column;gap:8px}
.fld.full{grid-column:1/-1}
.fld label{font-size:13.5px;font-weight:600;color:var(--ink)}
.fld label i{color:var(--red);font-style:normal;margin-left:3px}
.fld input[type=text],.fld input[type=tel],.fld input[type=email],.fld select,.fld textarea{
  width:100%;border:1px solid var(--line-2);border-radius:var(--r);padding:12px 14px;
  font-size:14.5px;color:var(--ink);background:#fff;outline:0;transition:border-color .16s,box-shadow .16s;
}
.fld textarea{resize:vertical;min-height:118px;line-height:1.6;font-family:var(--mono);font-size:13.5px}
.fld input:focus,.fld select:focus,.fld textarea:focus{border-color:var(--ink);box-shadow:0 0 0 3px rgba(11,13,15,.07)}
.fld .hint{font-size:12.5px;color:var(--muted)}
.fld.err input,.fld.err select,.fld.err textarea{border-color:var(--red);background:var(--red-soft)}
.fld .errmsg{font-size:12.5px;color:var(--red);display:none}
.fld.err .errmsg{display:block}

.drop{
  border:1.5px dashed var(--line-2);border-radius:var(--r-lg);padding:34px 24px;text-align:center;
  background:var(--bg-alt);transition:all .18s;cursor:pointer;
}
.drop:hover,.drop.over{border-color:var(--red);background:var(--red-soft)}
.drop svg{width:32px;height:32px;color:var(--red);margin:0 auto 14px}
.drop-t{font-size:14.5px;font-weight:600;color:var(--ink)}
.drop-s{font-size:13px;color:var(--muted);margin-top:7px}
.drop-s b{color:var(--red);font-weight:600}
.dropped{margin-top:14px;display:flex;flex-direction:column;gap:8px}
.fitem{
  display:flex;align-items:center;gap:12px;border:1px solid var(--line);border-radius:var(--r);
  padding:11px 14px;background:#fff;font-size:13.5px;
}
.fitem svg{width:17px;height:17px;color:var(--green);flex:none}
.fitem span{font-weight:600;color:var(--ink)}
.fitem em{font-style:normal;color:var(--muted);font-family:var(--mono);font-size:12.5px;margin-left:auto}
.fitem button{border:0;background:none;color:var(--muted);font-size:18px;line-height:1;padding:2px 4px}
.fitem button:hover{color:var(--red)}

.radios{display:flex;flex-wrap:wrap;gap:9px}
.radio{position:relative}
.radio input{position:absolute;opacity:0;pointer-events:none}
.radio span{
  display:block;border:1px solid var(--line-2);border-radius:20px;padding:9px 17px;font-size:13.5px;
  font-weight:500;color:var(--ink-2);background:#fff;transition:all .16s;cursor:pointer;
}
.radio input:checked+span{background:var(--ink);border-color:var(--ink);color:#fff}
.radio:hover span{border-color:var(--ink)}

.consent{display:flex;gap:11px;align-items:flex-start;font-size:13px;color:var(--muted);line-height:1.6;margin:26px 0 24px}
.consent input{width:17px;height:17px;flex:none;margin-top:2px;accent-color:var(--red)}
.consent a{color:var(--red);text-decoration:underline}
.form-acts{display:flex;flex-wrap:wrap;align-items:center;gap:18px}
.form-acts .note{font-size:13px;color:var(--muted)}

.rfq-list{border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:#fff}
.rfq-empty{padding:34px 22px;text-align:center;color:var(--muted);font-size:13.5px}
.rfq-row{display:flex;align-items:center;gap:12px;padding:12px 16px;border-bottom:1px solid var(--line);font-size:13.5px}
.rfq-row:last-child{border-bottom:0}
.rfq-row b{font-family:var(--mono);font-size:13.5px;color:var(--ink)}
.rfq-row input{
  width:82px;margin-left:auto;border:1px solid var(--line-2);border-radius:var(--r-sm);
  padding:6px 9px;font-family:var(--mono);font-size:12.5px;text-align:right;outline:0;
}
.rfq-row input:focus{border-color:var(--ink)}
.rfq-row button{border:0;background:none;color:var(--muted);font-size:17px;line-height:1;padding:0 4px}
.rfq-row button:hover{color:var(--red)}

.side-card{border:1px solid var(--line);border-radius:var(--r-lg);background:#fff;padding:24px;margin-bottom:18px}
.side-card.dark{background:var(--deep);border-color:var(--deep);color:rgba(255,255,255,.66)}
.side-card.dark h3,.side-card.dark .side-v{color:#fff}
.side-card h3{font-size:15.5px;margin-bottom:16px}
.side-list{display:flex;flex-direction:column;gap:14px}
.side-list li{display:flex;gap:11px;font-size:13.5px;line-height:1.6}
.side-list svg{width:16px;height:16px;color:var(--red);flex:none;margin-top:3px}
.side-card.dark .side-list svg{color:var(--cyan)}
.side-kv{display:flex;flex-direction:column;gap:13px;font-size:13.5px}
.side-kv div{display:flex;justify-content:space-between;gap:14px;align-items:baseline}
.side-kv dt{color:var(--muted)}
.side-v{font-family:var(--mono);font-weight:700;color:var(--ink)}

.success{
  border:1px solid var(--green);background:var(--green-soft);border-radius:var(--r-lg);
  padding:34px;text-align:center;display:none;
}
.success.on{display:block;animation:fade .34s ease}
.success-ic{width:56px;height:56px;border-radius:50%;background:var(--green);display:flex;align-items:center;justify-content:center;margin:0 auto 20px}
.success-ic svg{width:28px;height:28px;color:#fff}
.success h3{font-size:21px;margin-bottom:12px}
.success p{font-size:14.5px;color:var(--body);line-height:1.7;max-width:52ch;margin:0 auto}
.success-ref{
  display:inline-block;margin-top:20px;font-family:var(--mono);font-size:15px;font-weight:700;color:var(--ink);
  background:#fff;border:1px solid var(--line-2);border-radius:var(--r);padding:10px 20px;
}

/* ---------- 关于我们 ---------- */
.about-hero{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center;padding:64px 0}
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;margin-top:44px}
.stat{background:#fff;padding:26px 24px}
.stat b{display:block;font-family:var(--mono);font-size:29px;font-weight:700;color:var(--ink);letter-spacing:-.03em;line-height:1.1}
.stat span{display:block;font-size:13px;color:var(--muted);margin-top:8px}
.qual-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.qual{border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;background:#fff}
.qual-ic{width:42px;height:42px;border-radius:var(--r);background:var(--red-soft);display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.qual-ic svg{width:21px;height:21px;color:var(--red)}
.qual h3{font-size:16.5px;margin-bottom:10px}
.qual p{font-size:14px;line-height:1.7}
.wh-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.wh{border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:#fff}
.wh-hd{height:132px;position:relative;display:flex;align-items:flex-end;padding:18px;overflow:hidden}
.wh-hd::after{
  content:"";position:absolute;inset:0;opacity:.4;
  background-image:linear-gradient(rgba(255,255,255,.14) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:22px 22px;
}
.wh-hd b{position:relative;color:#fff;font-size:19px;font-weight:700;letter-spacing:-.02em}
.wh-bd{padding:20px}
.wh-bd p{font-size:13.5px;line-height:1.7;color:var(--body)}
.wh-bd dl{display:flex;flex-direction:column;gap:10px;margin-top:16px;padding-top:15px;border-top:1px solid var(--line);font-size:13px}
.wh-bd dl div{display:flex;justify-content:space-between;gap:14px}
.wh-bd dt{color:var(--muted)}
.wh-bd dd{margin:0;font-weight:600;color:var(--ink);font-family:var(--mono);font-size:12.5px}

.tl{border-left:2px solid var(--line);padding-left:0}
.tl li{position:relative;padding:0 0 34px 32px}
.tl li::before{content:"";position:absolute;left:-7px;top:7px;width:12px;height:12px;border-radius:50%;background:#fff;border:2.5px solid var(--line-2)}
.tl li:last-child::before{border-color:var(--red)}
.tl li:last-child{padding-bottom:0}
.tl-y{font-family:var(--mono);font-size:13px;font-weight:700;color:var(--red);letter-spacing:.02em}
.tl h3{font-size:16px;margin:7px 0 7px}
.tl p{font-size:14px;line-height:1.68}

/* ---------- 型号弹窗 ---------- */
.modal{position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center;padding:32px}
.modal.on{display:flex}
.modal-bg{position:absolute;inset:0;background:rgba(6,10,20,.62);backdrop-filter:blur(4px);animation:fade .2s ease}
.modal-box{
  position:relative;background:#fff;border-radius:var(--r-lg);width:100%;max-width:900px;max-height:88vh;
  display:flex;flex-direction:column;overflow:hidden;box-shadow:0 40px 90px rgba(3,7,18,.5);animation:pop .28s cubic-bezier(.2,.9,.3,1.1);
}
@keyframes pop{from{opacity:0;transform:translateY(18px) scale(.985)}to{opacity:1;transform:none}}
.modal-hd{padding:24px 28px;border-bottom:1px solid var(--line);display:flex;align-items:flex-start;gap:20px}
.modal-hd h3{font-family:var(--mono);font-size:24px;letter-spacing:-.02em;margin-bottom:7px}
.modal-hd p{font-size:14px;color:var(--body)}
.modal-x{
  margin-left:auto;width:36px;height:36px;border:1px solid var(--line);border-radius:var(--r);background:#fff;
  display:flex;align-items:center;justify-content:center;flex:none;transition:all .16s;
}
.modal-x:hover{border-color:var(--ink);background:var(--ink)}
.modal-x svg{width:18px;height:18px;color:var(--ink)}
.modal-x:hover svg{color:#fff}
.modal-bd{overflow-y:auto;padding:0}
.modal-kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border-bottom:1px solid var(--line)}
.modal-kpi{background:#fff;padding:16px 20px}
.modal-kpi-l{font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:700}
.modal-kpi-v{font-family:var(--mono);font-size:15px;font-weight:700;color:var(--ink);margin-top:7px;letter-spacing:-.01em}
.modal-ft{padding:18px 28px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;align-items:center;gap:14px;background:var(--bg-alt)}
.modal-ft .btn{margin-left:auto}
.qty{display:flex;align-items:center;border:1px solid var(--line-2);border-radius:var(--r);overflow:hidden;background:#fff}
.qty button{width:38px;height:42px;border:0;background:#fff;color:var(--ink);font-size:17px;line-height:1;transition:background .14s}
.qty button:hover{background:var(--bg-alt)}
.qty input{width:88px;height:42px;border:0;border-left:1px solid var(--line);border-right:1px solid var(--line);text-align:center;font-family:var(--mono);font-size:14px;font-weight:600;color:var(--ink);outline:0}

/* ---------- Toast ---------- */
.toast{
  position:fixed;left:50%;bottom:34px;transform:translate(-50%,90px);z-index:300;
  background:var(--ink);color:#fff;font-size:14px;font-weight:500;
  padding:14px 24px;border-radius:var(--r);box-shadow:var(--sh-3);
  display:flex;align-items:center;gap:11px;opacity:0;transition:all .28s cubic-bezier(.2,.9,.3,1.1);pointer-events:none;
  max-width:calc(100vw - 40px);
}
.toast.on{opacity:1;transform:translate(-50%,0)}
.toast svg{width:17px;height:17px;color:var(--cyan);flex:none}

/* ---------- 滚动出现 ---------- */
.rv{opacity:0;transform:translateY(22px)}
.rv.in{opacity:1;transform:none;transition:opacity .6s ease,transform .6s cubic-bezier(.2,.8,.3,1)}
@media (prefers-reduced-motion:reduce){
  .rv{opacity:1;transform:none}
  .hv-f1,.hv-f2,.hv-f3,.ti-scan{animation:none}
  html{scroll-behavior:auto}
}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .cap-grid{grid-template-columns:1fr 1fr}
  .bw-grid{grid-template-columns:repeat(3,1fr)}
  .newb-grid{grid-template-columns:1fr 1fr}
  .cats{grid-template-columns:repeat(3,1fr)}
  .ftr-top{grid-template-columns:1.4fr 1fr 1fr;gap:36px}
  .ftr-col:nth-child(4),.ftr-col:nth-child(5){grid-column:span 1}
  .hdr-search{display:none}
  .letter-list{grid-template-columns:repeat(5,1fr)}
}
@media (max-width:1024px){
  :root{--pad:24px}
  .nav{display:none}
  .burger{display:flex}
  .hero-in{grid-template-columns:1fr;gap:48px;padding-top:56px;padding-bottom:56px}
  .hero-vis{height:360px}
  .ti-hd{grid-template-columns:1fr;gap:34px}
  .ti-series{flex-direction:column;gap:14px}
  .pdp-top,.enq-grid,.pf-grid,.about-hero,.cta-in{grid-template-columns:1fr;gap:40px}
  .pdp-buy{position:static}
  .sol-grid{grid-template-columns:1fr}
  .qual-grid,.wh-grid,.rel-grid{grid-template-columns:1fr 1fr}
  .letter-list{grid-template-columns:repeat(4,1fr)}
  .sec{padding:64px 0}
  .ti{padding:58px 0}
  .modal-kpis{grid-template-columns:1fr 1fr}
  .stat-row{grid-template-columns:1fr 1fr}
  .ptable-hd{display:none}
  .prow{grid-template-columns:1fr auto;gap:10px 16px;padding:16px 18px;min-height:0}
  .prow-desc,.prow-key{grid-column:1/-1}
  .prow-pkg{display:none}
}
@media (max-width:720px){
  h1{font-size:31px}
  .topbar{font-size:12px}
  .topbar-r a{display:none}
  .topbar-l{display:none}
  .topbar .ctr{justify-content:flex-end}
  .cap-grid,.bw-grid,.newb-grid,.cats,.qual-grid,.wh-grid,.rel-grid{grid-template-columns:1fr}
  .fgrid{grid-template-columns:1fr}
  .letter-list{grid-template-columns:1fr 1fr}
  .hero-trust li{border-right:0;padding-right:0;margin-right:0;width:100%}
  .hero-trust{gap:12px;flex-direction:column;align-items:flex-start}
  .ftr-top{grid-template-columns:1fr;gap:34px}
  .ti-facts{grid-template-columns:1fr 1fr}
  .cta-stats,.stat-row{grid-template-columns:1fr 1fr}
  .modal{padding:0;align-items:flex-end}
  .modal-box{max-height:94vh;border-radius:14px 14px 0 0;max-width:none}
  .modal-ft{flex-direction:column;align-items:stretch}
  .modal-ft .btn{margin-left:0;justify-content:center}
  .toast{bottom:18px}
  .hero-vis{height:320px}
  .hv-card{left:10px;right:20px;top:34px}
  .hv-f2{left:0}
}