@charset "UTF-8";
/* 零岩 ZEROLITH 站点设计系统 —— 全站共用 */

:root{
  --ink:#14181F;
  --ink-2:#2A313C;
  --stone:#6B7280;
  --stone-light:#9AA3AE;
  --jade:#00A896;
  --jade-dark:#008173;
  --gold:#C9A227;
  --paper:#FAFAF8;
  --layer:#F4F5F3;
  --line:#E3E5E1;
  --white:#FFFFFF;

  /* 4 款产品专属辅助色（accent 体系） */
  --c-crystal:#4A9FD8;       /* 晶石：冰蓝 */
  --c-crystal-soft:#E8F2FA;
  --c-flint:#E8833A;         /* 燧石：火橙 */
  --c-flint-soft:#FBE9D8;
  --c-basalt:#5C6F84;        /* 玄武：深青灰 */
  --c-basalt-soft:#E2E7EC;
  --c-bedrock:#B8842C;       /* 磐石：金棕 */
  --c-bedrock-soft:#F2E5D0;

  --font:"HarmonyOS Sans SC","Source Han Sans CN","Noto Sans SC","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --mono:"Cascadia Mono","JetBrains Mono","SF Mono",Consolas,"Courier New",monospace;
  --max:1200px;
  --nav-h:68px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--font);
  background:var(--paper);
  color:var(--ink);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,svg{max-width:100%;display:block;}
a{color:inherit;}
.wrap{max-width:var(--max);margin:0 auto;padding:0 32px;}
.mono{font-family:var(--mono);}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}

/* ================= NAV ================= */
nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(250,250,248,.86);
  backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .3s, box-shadow .3s;
}
nav.scrolled{border-bottom-color:var(--line);box-shadow:0 1px 24px rgba(20,24,31,.05);}
.nav-in{max-width:var(--max);margin:0 auto;padding:0 32px;height:var(--nav-h);display:flex;align-items:center;justify-content:space-between;gap:24px;}
.brand{display:flex;align-items:baseline;gap:10px;text-decoration:none;flex-shrink:0;}
.brand-cn{font-size:22px;font-weight:800;letter-spacing:.16em;color:var(--ink);}
.brand-en{font-family:var(--mono);font-size:11px;letter-spacing:.34em;color:var(--jade);text-transform:uppercase;}
.nav-links{display:flex;gap:30px;list-style:none;align-items:center;}
.nav-links a{
  text-decoration:none;color:var(--ink-2);font-size:14px;font-weight:500;
  letter-spacing:.04em;position:relative;padding:4px 0;transition:color .2s;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:1.5px;
  background:var(--jade);transition:width .28s cubic-bezier(.4,0,.2,1);
}
.nav-links a:hover{color:var(--jade);}
.nav-links a:hover::after{width:100%;}
.nav-links a.active{color:var(--jade);}
.nav-links a.active::after{width:100%;}
.nav-cta{
  font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--white);
  background:var(--ink);padding:10px 22px;text-decoration:none;
  border:1px solid var(--ink);transition:all .25s;white-space:nowrap;
}
.nav-cta:hover{background:var(--jade);border-color:var(--jade);}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);
  background:transparent;cursor:pointer;position:relative;flex-shrink:0;
}
.nav-toggle span{
  position:absolute;left:11px;width:18px;height:1.5px;background:var(--ink);
  transition:transform .3s, opacity .2s;
}
.nav-toggle span:nth-child(1){top:15px;}
.nav-toggle span:nth-child(2){top:19.5px;}
.nav-toggle span:nth-child(3){top:24px;}
.nav-toggle.open span:nth-child(1){transform:translateY(4.5px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-4.5px) rotate(-45deg);}

/* ================= 通用标题 ================= */
section{padding:104px 0;position:relative;}
.sec-head{margin-bottom:60px;max-width:780px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-tag{
  font-family:var(--mono);font-size:11px;letter-spacing:.28em;
  color:var(--jade);text-transform:uppercase;display:block;margin-bottom:16px;
}
.sec-title{font-size:clamp(28px,3.8vw,40px);font-weight:800;letter-spacing:.03em;line-height:1.32;margin-bottom:16px;}
.sec-sub{font-size:16px;color:var(--stone);line-height:1.9;}
.divider{height:1px;background:var(--line);}

/* ================= 二级页头部 ================= */
.pagehead{
  padding:calc(var(--nav-h) + 76px) 0 64px;
  background:var(--ink);color:var(--white);position:relative;overflow:hidden;
}
.pagehead::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 82% 8%,rgba(0,168,150,.22) 0%,rgba(0,168,150,0) 58%);
  pointer-events:none;
}
.pagehead .wrap{position:relative;z-index:2;}

/* 产品页头部：左侧文案 + 右侧矿物视觉 */
.pagehead.has-glyph{display:grid;align-items:center;}
.pagehead.has-glyph .wrap{display:grid;grid-template-columns:1fr 380px;gap:48px;align-items:center;}
.pagehead .pglyph-slot{
  position:relative;width:100%;height:380px;
  display:flex;align-items:center;justify-content:center;
}
.pagehead .pglyph-slot .glyph{width:280px;height:280px;color:var(--accent,#00A896);filter:drop-shadow(0 20px 60px rgba(0,0,0,.5));}
.pagehead .pglyph-slot::before{
  content:"";position:absolute;inset:30px;
  border:1px solid rgba(255,255,255,.08);
  background:radial-gradient(circle at 50% 50%,rgba(255,255,255,.04) 0%,rgba(255,255,255,0) 70%);
  pointer-events:none;
}
.pagehead .pglyph-slot::after{
  content:"";position:absolute;left:50%;top:50%;width:300px;height:300px;
  transform:translate(-50%,-50%);
  background:radial-gradient(circle,var(--accent,#00A896) 0%,transparent 65%);
  opacity:.15;pointer-events:none;
}
.crumb{
  font-family:var(--mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--stone-light);margin-bottom:22px;display:flex;gap:10px;align-items:center;flex-wrap:wrap;
}
.crumb a{text-decoration:none;color:var(--stone-light);transition:color .2s;}
.crumb a:hover{color:var(--jade);}
.crumb .sep{color:#3A424E;}
.crumb .cur{color:var(--jade);}
.ph-title{font-size:clamp(34px,5.4vw,58px);font-weight:800;letter-spacing:.04em;line-height:1.16;margin-bottom:8px;}
.ph-en{font-family:var(--mono);font-size:clamp(12px,1.6vw,15px);letter-spacing:.5em;color:var(--jade);text-transform:uppercase;margin-bottom:26px;}
.ph-desc{font-size:17px;color:var(--stone-light);line-height:1.95;max-width:660px;}
.ph-meta{display:flex;gap:36px;flex-wrap:wrap;margin-top:38px;padding-top:30px;border-top:1px solid #262C35;}
.ph-meta div .k{font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;color:var(--stone-light);text-transform:uppercase;display:block;margin-bottom:7px;}
.ph-meta div .v{font-size:17px;font-weight:700;letter-spacing:.04em;color:var(--white);}

/* ================= 按钮 ================= */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:15px 34px;font-size:14.5px;font-weight:600;letter-spacing:.08em;
  text-decoration:none;transition:all .28s cubic-bezier(.4,0,.2,1);border:1px solid;
}
.btn-primary{background:var(--ink);color:var(--white);border-color:var(--ink);}
.btn-primary:hover{background:var(--jade);border-color:var(--jade);transform:translateY(-2px);box-shadow:0 10px 26px rgba(0,168,150,.24);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--ink);transform:translateY(-2px);}
.btn-jade{background:var(--jade);color:var(--white);border-color:var(--jade);}
.btn-jade:hover{background:var(--white);color:var(--ink);border-color:var(--white);transform:translateY(-2px);}
.btn-ol{background:transparent;color:var(--white);border-color:#3A424E;}
.btn-ol:hover{border-color:var(--white);transform:translateY(-2px);}
.btn .arw{transition:transform .28s;}
.btn:hover .arw{transform:translateX(4px);}
.btn-sm{padding:11px 24px;font-size:13px;}

/* ================= 网格与卡片 ================= */
.grid{display:grid;gap:22px;}
.g2{grid-template-columns:repeat(2,1fr);}
.g3{grid-template-columns:repeat(3,1fr);}
.g4{grid-template-columns:repeat(4,1fr);}
.card{
  background:var(--white);border:1px solid var(--line);padding:36px 32px;
  transition:transform .35s, box-shadow .35s, border-color .35s;
}
.card:hover{transform:translateY(-4px);box-shadow:0 18px 44px rgba(20,24,31,.07);border-color:var(--stone-light);}
.card .cnum{
  font-family:var(--mono);font-size:11px;letter-spacing:.2em;color:var(--jade);
  display:block;margin-bottom:18px;
}
.card h3{font-size:19px;font-weight:800;letter-spacing:.04em;margin-bottom:10px;}
.card h3 small{display:block;font-family:var(--mono);font-size:11.5px;letter-spacing:.2em;color:var(--stone-light);font-weight:400;margin-top:6px;text-transform:uppercase;}
.card p{font-size:14.5px;color:var(--stone);line-height:1.85;}
.card ul{list-style:none;margin-top:14px;}
.card li{font-size:14px;color:var(--stone);padding:7px 0 7px 20px;position:relative;line-height:1.7;}
.card li::before{content:"";position:absolute;left:0;top:16px;width:5px;height:5px;background:var(--jade);transform:rotate(45deg);}

/* 带边框分隔的格子（规格/要点） */
.cells{display:grid;gap:1px;background:var(--line);border:1px solid var(--line);}
.cells.c2{grid-template-columns:repeat(2,1fr);}
.cells.c3{grid-template-columns:repeat(3,1fr);}
.cells.c4{grid-template-columns:repeat(4,1fr);}
.cell{background:var(--white);padding:30px 26px;transition:background .3s;}
.cell:hover{background:var(--paper);}
.cell h4{font-size:14px;font-weight:800;letter-spacing:.12em;color:var(--ink);margin-bottom:14px;}
.cell h4::before{content:"";display:block;width:22px;height:2px;background:var(--jade);margin-bottom:13px;}
.cell p,.cell li{font-size:13.5px;color:var(--stone);line-height:1.8;}
.cell ul{list-style:none;}
.cell li{padding:5px 0;}

/* ================= 规格表 ================= */
.spec{width:100%;border-collapse:collapse;background:var(--white);border:1px solid var(--line);}
.spec caption{
  caption-side:bottom;text-align:left;font-size:12px;color:var(--stone-light);
  line-height:1.8;padding-top:14px;
}
.spec th,.spec td{padding:16px 22px;border-bottom:1px solid var(--line);text-align:left;font-size:14.5px;vertical-align:top;}
.spec thead th{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;color:var(--stone);
  text-transform:uppercase;font-weight:500;background:var(--layer);white-space:nowrap;
}
.spec tbody th{
  font-size:13.5px;font-weight:700;letter-spacing:.06em;color:var(--ink);
  width:180px;background:var(--paper);
}
.spec td{color:var(--stone);}
.spec td b{color:var(--ink-2);font-weight:600;}
.spec tbody tr:last-child th,.spec tbody tr:last-child td{border-bottom:none;}
.spec tbody tr:hover td{background:#FCFCFB;}

/* 横向对比表 */
.compare{width:100%;border-collapse:collapse;background:var(--white);border:1px solid var(--line);overflow-x:auto;display:block;}
.compare thead th{
  font-size:14px;font-weight:800;letter-spacing:.06em;color:var(--ink);
  background:var(--layer);padding:18px 16px;border-bottom:1px solid var(--line);text-align:center;white-space:nowrap;
}
.compare thead th:first-child{text-align:left;font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;color:var(--stone);text-transform:uppercase;font-weight:500;}
.compare tbody th{
  font-size:13.5px;font-weight:700;color:var(--ink);text-align:left;padding:15px 16px;
  border-bottom:1px solid var(--line);background:var(--paper);white-space:nowrap;
}
.compare td{font-size:13.5px;color:var(--stone);text-align:center;padding:15px 16px;border-bottom:1px solid var(--line);}
.compare tbody tr:hover td,.compare tbody tr:hover th{background:#FCFCFB;}
.compare .yes{color:var(--jade);font-weight:700;}
.compare .no{color:var(--stone-light);}
.compare .hl{color:var(--ink);font-weight:700;}

/* ================= 卖点块 ================= */
.feat{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);}
.feat-item{background:var(--white);padding:40px 36px;position:relative;transition:background .35s;}
.feat-item:hover{background:#FCFCFB;}
.feat-item .fi-n{font-family:var(--mono);font-size:11px;letter-spacing:.22em;color:var(--jade);display:block;margin-bottom:16px;}
.feat-item h3{font-size:21px;font-weight:800;letter-spacing:.04em;margin-bottom:12px;}
.feat-item p{font-size:14.5px;color:var(--stone);line-height:1.9;}
.feat-item .fi-tag{
  display:inline-block;margin-top:18px;font-family:var(--mono);font-size:11px;
  letter-spacing:.1em;color:var(--jade-dark);background:rgba(0,168,150,.08);padding:5px 12px;
}

/* ================= 场景 / 时间线 ================= */
.scene{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.scene-item{border:1px solid var(--line);background:var(--white);overflow:hidden;transition:all .35s;}
.scene-item:hover{transform:translateY(-4px);box-shadow:0 18px 44px rgba(20,24,31,.08);border-color:var(--ink);}
.scene-h{padding:26px 28px;background:var(--ink);color:var(--white);}
.scene-h .sh-k{font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;color:var(--jade);text-transform:uppercase;display:block;margin-bottom:8px;}
.scene-h h4{font-size:18px;font-weight:800;letter-spacing:.06em;}
.scene-b{padding:26px 28px;}
.scene-b dl{margin:0;}
.scene-b dt{font-size:12px;font-family:var(--mono);letter-spacing:.12em;color:var(--stone-light);text-transform:uppercase;margin-bottom:6px;margin-top:16px;}
.scene-b dt:first-child{margin-top:0;}
.scene-b dd{font-size:14.5px;color:var(--ink-2);line-height:1.8;}

/* ================= FAQ ================= */
.faq{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;background:none;border:none;text-align:left;cursor:pointer;
  padding:24px 44px 24px 0;font-family:var(--font);font-size:16.5px;font-weight:700;
  letter-spacing:.03em;color:var(--ink);position:relative;transition:color .25s;
}
.faq-q:hover{color:var(--jade);}
.faq-q::after{
  content:"";position:absolute;right:6px;top:50%;width:11px;height:11px;
  border-right:1.5px solid var(--stone);border-bottom:1.5px solid var(--stone);
  transform:translateY(-70%) rotate(45deg);transition:transform .3s, border-color .25s;
}
.faq-item.open .faq-q::after{transform:translateY(-30%) rotate(225deg);border-color:var(--jade);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s cubic-bezier(.4,0,.2,1);}
.faq-a-in{padding:0 60px 26px 0;font-size:15px;color:var(--stone);line-height:1.95;}

/* ================= 行动条 ================= */
.strip{background:var(--ink);padding:78px 0;position:relative;overflow:hidden;}
.strip::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 50% 130%,rgba(0,168,150,.2) 0%,rgba(0,168,150,0) 62%);
}
.strip .wrap{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:34px;flex-wrap:wrap;}
.strip h2{font-size:clamp(24px,3.4vw,34px);font-weight:800;color:var(--white);letter-spacing:.05em;line-height:1.4;}
.strip p{font-size:15px;color:var(--stone-light);margin-top:10px;letter-spacing:.04em;}
.strip .acts{display:flex;gap:14px;flex-wrap:wrap;}

/* 上下篇导航 */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);}
.pager a{
  background:var(--white);padding:30px 32px;text-decoration:none;transition:background .3s;
  display:block;
}
.pager a:hover{background:var(--paper);}
.pager a .pk{font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;color:var(--stone-light);text-transform:uppercase;display:block;margin-bottom:10px;}
.pager a .pv{font-size:19px;font-weight:800;letter-spacing:.05em;color:var(--ink);}
.pager a.next{text-align:right;}
.pager a:hover .pv{color:var(--jade);}

/* ================= 深色区块 ================= */
.dark{background:var(--ink);color:var(--white);}
.dark .sec-title{color:var(--white);}
.dark .sec-sub{color:var(--stone-light);}
.dark .card{background:#1A1F27;border-color:#262C35;}
.dark .card:hover{border-color:var(--stone);box-shadow:none;}
.dark .card h3{color:var(--white);}
.dark .card p,.dark .card li{color:var(--stone-light);}
.dark .cells,.dark .feat{background:#262C35;border-color:#262C35;}
.dark .cell,.dark .feat-item{background:#1A1F27;}
.dark .cell:hover,.dark .feat-item:hover{background:#1E242D;}
.dark .cell h4{color:var(--white);}
.dark .cell p,.dark .cell li{color:var(--stone-light);}
.dark .feat-item h3{color:var(--white);}
.dark .feat-item p{color:var(--stone-light);}

/* ================= 配色/字体样本 ================= */
.swatch{border:1px solid var(--line);background:var(--white);overflow:hidden;}
.swatch .sw-color{height:96px;display:flex;align-items:flex-end;padding:12px 14px;}
.swatch .sw-color span{font-family:var(--mono);font-size:11px;letter-spacing:.08em;color:rgba(255,255,255,.92);}
.swatch .sw-info{padding:16px 18px;}
.swatch .sw-info b{display:block;font-size:14.5px;font-weight:700;letter-spacing:.05em;margin-bottom:4px;}
.swatch .sw-info small{font-family:var(--mono);font-size:11px;color:var(--stone);letter-spacing:.06em;}
.swatch.light .sw-color span{color:rgba(20,24,31,.75);}

/* ================= 页脚 ================= */
footer{background:#0E1116;color:var(--stone-light);padding:54px 0 34px;font-size:13px;}
.f-in{display:flex;justify-content:space-between;align-items:flex-start;gap:40px;flex-wrap:wrap;padding-bottom:30px;border-bottom:1px solid #22282F;}
.f-nav{display:flex;gap:56px;flex-wrap:wrap;}
.f-col .ft{font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;color:var(--stone);text-transform:uppercase;margin-bottom:14px;}
.f-col a{display:block;text-decoration:none;color:var(--stone-light);font-size:13.5px;padding:5px 0;transition:color .22s;}
.f-col a:hover{color:var(--jade);}
.f-b .f-cn{font-size:19px;font-weight:800;letter-spacing:.2em;color:var(--white);}
.f-b .f-en{font-family:var(--mono);font-size:10.5px;letter-spacing:.34em;color:var(--jade);text-transform:uppercase;margin-top:6px;}
.f-b .f-co{font-size:12.5px;color:var(--stone-light);margin-top:18px;line-height:1.9;}
.f-ct{text-align:right;}
.f-ct .fn{font-family:var(--mono);font-size:26px;font-weight:700;color:var(--white);letter-spacing:.04em;}
.f-ct .fw{font-size:12.5px;margin-top:8px;}
.f-ct .fw a{color:var(--stone-light);text-decoration:none;}
.f-ct .fw a:hover{color:var(--jade);}
.f-bot{padding-top:24px;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;font-size:12px;color:#6B7280;}
.f-bot .mono{font-size:11px;letter-spacing:.12em;}
.f-bot .icp{color:#6B7280;text-decoration:none;letter-spacing:.04em;border-bottom:1px solid transparent;transition:color .25s,border-color .25s;}
.f-bot .icp:hover{color:var(--jade);border-bottom-color:var(--jade);}

/* ================= 首屏 ================= */
header.hero{position:relative;padding:172px 0 96px;overflow:hidden;background:var(--paper);}
.contour{position:absolute;inset:0;opacity:.5;pointer-events:none;}
.contour svg{width:100%;height:100%;}
@keyframes drift{0%{transform:translate3d(0,0,0) scale(1.05);}50%{transform:translate3d(-14px,10px,0) scale(1.07);}100%{transform:translate3d(0,0,0) scale(1.05);}}
.contour svg{animation:drift 22s ease-in-out infinite;}
.glow{
  position:absolute;top:-180px;right:-140px;width:620px;height:620px;
  background:radial-gradient(circle,rgba(0,168,150,.13) 0%,rgba(0,168,150,0) 68%);
  pointer-events:none;
}
.hero-in{position:relative;z-index:2;}

/* 首屏右侧产品视觉（4 矿物 + NAS 设备） */
.hero-visual{
  position:absolute;right:0;top:50%;transform:translateY(-50%);
  width:520px;height:520px;pointer-events:none;z-index:1;
  display:grid;grid-template-columns:repeat(2,1fr);grid-template-rows:repeat(2,1fr);
  gap:0;
}
.hero-visual .hv-cell{
  position:relative;border:1px solid var(--line);background:rgba(255,255,255,.5);
  display:flex;align-items:center;justify-content:center;
  transition:all .5s cubic-bezier(.4,0,.2,1);
}
.hero-visual .hv-cell::after{
  content:attr(data-pk);position:absolute;left:14px;top:12px;
  font-family:var(--mono);font-size:10px;letter-spacing:.2em;color:var(--stone-light);
}
.hero-visual .hv-cell .glyph{width:120px;height:120px;opacity:.95;transition:all .6s cubic-bezier(.4,0,.2,1);}
.hero-visual .hv-cell:hover{background:var(--white);box-shadow:0 12px 40px rgba(0,0,0,.08);}
.hero-visual .hv-cell:hover .glyph{transform:scale(1.08);}

.hero-in{position:relative;z-index:2;max-width:760px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:11px;letter-spacing:.28em;color:var(--stone);
  text-transform:uppercase;margin-bottom:30px;
}
.eyebrow::before{content:"";width:28px;height:1px;background:var(--jade);}
h1.hero-title{
  font-size:clamp(72px,13vw,148px);font-weight:800;line-height:.94;
  letter-spacing:.06em;margin-bottom:8px;
  background:linear-gradient(160deg,var(--ink) 30%,#4A5563 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-en{
  font-family:var(--mono);font-size:clamp(13px,1.6vw,16px);
  letter-spacing:.62em;color:var(--jade);text-transform:uppercase;margin-bottom:38px;
}
.hero-slogan{
  font-size:clamp(24px,3.4vw,38px);font-weight:700;line-height:1.45;
  letter-spacing:.1em;margin-bottom:22px;color:var(--ink);
}
.hero-slogan span{color:var(--jade);}
.hero-desc{font-size:16.5px;color:var(--stone);max-width:620px;line-height:1.95;margin-bottom:42px;}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:76px;}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  position:relative;z-index:1;
}
.hstat{
  padding:32px 24px 28px;
  position:relative;
  transition:background .3s;
}
.hstat::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:1px;height:36px;background:var(--line);
}
.hstat:first-child::before{display:none;}
.hstat:hover{background:rgba(0,168,150,.04);}
.hstat .k{font-family:var(--mono);font-size:10.5px;letter-spacing:.22em;color:var(--stone-light);text-transform:uppercase;margin-bottom:14px;display:block;}
.hstat .v{font-family:var(--mono);font-size:38px;font-weight:800;color:var(--ink);line-height:1;letter-spacing:-.02em;}
.hstat .v em{font-style:normal;color:var(--jade);font-size:18px;font-weight:600;margin-left:2px;}
.hstat .l{font-size:12.5px;color:var(--stone);letter-spacing:.08em;margin-top:10px;line-height:1.5;}

/* ================= 命名解构 ================= */
.decon{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);}
.dcard{background:var(--white);padding:56px 48px;position:relative;overflow:hidden;transition:background .4s;}
.dcard::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--jade);transform:scaleY(0);transform-origin:top;transition:transform .5s cubic-bezier(.4,0,.2,1);
}
.dcard:hover::before{transform:scaleY(1);}
.dcard:hover{background:#FCFCFB;}
.dglyph{font-size:96px;font-weight:800;line-height:1;letter-spacing:.02em;color:var(--ink);margin-bottom:6px;display:block;}
.dglyph-en{font-family:var(--mono);font-size:12px;letter-spacing:.3em;color:var(--jade);text-transform:uppercase;margin-bottom:30px;display:block;}
.dlist{list-style:none;margin-top:26px;}
.dlist li{display:flex;gap:16px;padding:15px 0;border-top:1px dashed var(--line);font-size:15px;color:var(--stone);line-height:1.8;}
.dlist li b{color:var(--ink);font-weight:700;font-size:14px;letter-spacing:.08em;min-width:64px;flex-shrink:0;}
.chem{
  margin-top:56px;padding:38px 46px;background:var(--ink);color:var(--white);
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.chem p{font-size:clamp(18px,2.4vw,25px);font-weight:700;letter-spacing:.06em;line-height:1.6;}
.chem .mark{font-family:var(--mono);font-size:12px;letter-spacing:.26em;color:var(--jade);text-transform:uppercase;}

/* ================= 双轨价值 ================= */
.tracks{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.track{background:var(--white);border:1px solid var(--line);padding:44px 40px;transition:all .35s;}
.track:hover{transform:translateY(-4px);box-shadow:0 18px 44px rgba(20,24,31,.07);border-color:var(--stone-light);}
.track-h{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px;}
.track-k{font-family:var(--mono);font-size:11px;letter-spacing:.26em;color:var(--jade);text-transform:uppercase;}
.track-b{font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;padding:5px 12px;border:1px solid var(--line);color:var(--stone);}
.track-t{font-size:23px;font-weight:800;letter-spacing:.04em;margin-bottom:6px;}
.track-d{font-size:14px;color:var(--stone);margin-bottom:26px;}
.pain{
  font-size:12.5px;color:var(--ink-2);background:var(--layer);
  padding:12px 16px;margin-bottom:24px;border-left:2px solid var(--gold);font-weight:500;
}
.pain i{font-style:normal;color:var(--gold);font-weight:700;}
.talks{list-style:none;}
.talks li{font-size:15px;color:var(--ink-2);padding:13px 0 13px 26px;position:relative;border-bottom:1px solid var(--line);line-height:1.75;}
.talks li:last-child{border-bottom:none;}
.talks li::before{content:"";position:absolute;left:4px;top:22px;width:6px;height:6px;background:var(--jade);transform:rotate(45deg);}

/* ================= 产品卡 ================= */
.pgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}

/* 4 款产品的 accent 颜色由 [data-product] 注入到 --accent */
.pcard{
  --accent:var(--jade);
  --accent-soft:var(--layer);
  position:relative;
  border:1px solid var(--line);
  padding:30px 28px 30px;
  background:var(--paper);
  text-decoration:none;
  color:inherit;
  display:block;
  overflow:hidden;
  transition:all .4s cubic-bezier(.4,0,.2,1);
}
/* 顶部色带 */
.pcard::before{
  content:"";position:absolute;left:0;top:0;right:0;height:3px;
  background:var(--accent);
  transform:scaleX(.32);transform-origin:left;
  transition:transform .5s cubic-bezier(.4,0,.2,1);
}
/* 背景大水印（矿物 SVG，由 JS 注入 .bg-glyph） */
.pcard .bg-glyph{
  position:absolute;right:-30px;bottom:-30px;width:240px;height:240px;
  color:var(--accent);
  opacity:.06;pointer-events:none;
  transition:opacity .4s, transform .6s cubic-bezier(.4,0,.2,1);
  transform:rotate(-8deg);
}
.pcard:hover{
  background:var(--white);
  transform:translateY(-6px);
  box-shadow:0 24px 60px rgba(20,24,31,.10);
  border-color:var(--accent);
}
.pcard:hover::before{transform:scaleX(1);}
.pcard:hover .bg-glyph{opacity:.14;transform:rotate(0deg) translate(-6px,-6px);}

.pcard-head{
  display:flex;align-items:center;gap:16px;margin-bottom:22px;
  position:relative;z-index:1;
}
.pcard .glyph{
  width:54px;height:54px;flex-shrink:0;
  filter:drop-shadow(0 2px 6px rgba(0,0,0,.04));
}
.pcard .glyph *{transition:all .4s;}
.pcard:hover .glyph{transform:scale(1.06) rotate(-3deg);}

.pidx{font-family:var(--mono);font-size:11px;letter-spacing:.2em;color:var(--stone-light);display:block;margin-bottom:6px;line-height:1;}
.pcn{font-size:30px;font-weight:800;letter-spacing:.08em;line-height:1;color:var(--ink);}
.pen{font-family:var(--mono);font-size:11.5px;letter-spacing:.24em;color:var(--accent);text-transform:uppercase;display:block;margin-top:4px;}

.ppos{
  display:inline-block;font-size:11.5px;font-weight:600;letter-spacing:.06em;
  padding:5px 12px;background:var(--ink);color:var(--white);margin-bottom:18px;
  position:relative;z-index:1;
}
.pfor{font-size:13px;color:var(--stone);margin-bottom:18px;padding-bottom:18px;border-bottom:1px solid var(--line);position:relative;z-index:1;}

.ptags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:20px;min-height:auto;align-content:flex-start;position:relative;z-index:1;}
.ptag{font-size:11.5px;color:var(--ink-2);border:1px solid var(--line);padding:4px 10px;background:var(--white);transition:all .25s;}
.pcard:hover .ptag{border-color:var(--accent);color:var(--accent);}

.pmeta{font-size:13.5px;color:var(--stone);line-height:1.8;position:relative;z-index:1;}
.pmeta b{color:var(--accent);font-weight:700;}

.pgo{
  font-family:var(--mono);font-size:11px;letter-spacing:.16em;
  color:var(--accent);margin-top:18px;display:inline-flex;align-items:center;gap:6px;
  position:relative;z-index:1;transition:gap .3s;
}
.pcard:hover .pgo{gap:12px;}

/* ================= 命名决策表 ================= */
.gwrap{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:start;}
.gtable{width:100%;border-collapse:collapse;}
.gtable th{
  text-align:left;font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;
  color:var(--stone-light);text-transform:uppercase;font-weight:500;padding:0 16px 14px;border-bottom:1px solid #2A313C;
}
.gtable td{padding:18px 16px;border-bottom:1px solid #22282F;font-size:14.5px;vertical-align:top;}
.gtable tr:last-child td{border-bottom:none;}
.gtable .nm{font-family:var(--mono);font-size:15px;font-weight:700;letter-spacing:.1em;color:var(--white);}
.gtable .nm.rec{color:var(--jade);}
.gtable .pro{color:#B9C0C9;}
.gtable .con{color:var(--stone-light);}
.verdict{font-size:11px;letter-spacing:.1em;padding:4px 11px;font-family:var(--mono);white-space:nowrap;}
.v-yes{background:rgba(0,168,150,.16);color:#2FD4C0;}
.v-no{background:rgba(154,163,174,.14);color:var(--stone-light);}
.v-alt{background:rgba(201,162,39,.16);color:#E0BE55;}
.lockup{border:1px solid #2A313C;padding:44px 38px;text-align:center;background:linear-gradient(180deg,#1A1F27,#14181F);}
.lockup .lk{font-family:var(--mono);font-size:34px;font-weight:700;letter-spacing:.2em;color:var(--white);}
.lockup .lc{font-size:26px;font-weight:800;letter-spacing:.42em;color:var(--jade);margin-top:14px;}
.lockup .ld{font-size:12.5px;color:var(--stone-light);margin-top:24px;line-height:1.9;letter-spacing:.04em;}
.lockup .lbar{width:44px;height:2px;background:var(--gold);margin:22px auto;}
.dark .gtable th{border-bottom-color:#2A313C;}
.dark .gtable td{border-bottom-color:#22282F;}

/* ================= 社群 ================= */
.cgrid{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:center;}
.ctitle{font-size:clamp(30px,4vw,40px);font-weight:800;letter-spacing:.1em;margin-bottom:18px;}
.ctitle em{font-style:normal;color:var(--jade);}
.cdesc{font-size:16px;color:var(--stone);line-height:1.95;margin-bottom:30px;}
.crow{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);}
.ccell{background:var(--white);padding:26px 24px;}
.ccell .ck{font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;color:var(--jade);text-transform:uppercase;display:block;margin-bottom:10px;}
.ccell .cv{font-size:14.5px;color:var(--ink-2);line-height:1.8;}

/* ================= 表单 ================= */
.form-row{margin-bottom:20px;}
.form-row label{display:block;font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;color:var(--stone);text-transform:uppercase;margin-bottom:8px;}
.form-row input,.form-row select,.form-row textarea{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:0;
  background:var(--white);color:var(--ink);font-family:var(--font);font-size:14.5px;line-height:1.7;
  transition:border-color .25s;
}
.form-row textarea{min-height:132px;resize:vertical;}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{outline:none;border-color:var(--jade);}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 22px;}
.form-acts{margin-top:26px;display:flex;gap:14px;align-items:center;flex-wrap:wrap;}
.form-acts button{border:none;cursor:pointer;}
.form-note{font-size:13px;color:var(--stone);line-height:1.85;}
@media(max-width:760px){.form-grid{grid-template-columns:1fr;}}

/* ================= 工具类 ================= */
.alt{background:var(--layer);}
.alt-white{background:var(--white);}
.lead{font-size:15.5px;color:var(--stone);line-height:1.9;}
.mt{margin-top:34px;}
.mt-lg{margin-top:44px;}
.mt-sm{margin-top:26px;}
.pt-lg{padding:56px 0 104px;}
.on-dark{color:#FFFFFF;}
.sw-ink{background:#14181F;}
.sw-jade{background:#00A896;}
.sw-gold{background:#C9A227;}
.sw-stone{background:#6B7280;}

/* ================= 滚动显现 ================= */
.js .rv{opacity:0;transform:translateY(26px);transition:opacity .75s cubic-bezier(.16,1,.3,1),transform .75s cubic-bezier(.16,1,.3,1);}
.js .rv.in{opacity:1;transform:none;}

/* ================= 响应式 ================= */
@media(max-width:1100px){
  .nav-links{gap:20px;}
  .nav-links a{font-size:13px;}
}
@media(max-width:1000px){
  .g4,.cells.c4{grid-template-columns:repeat(2,1fr);}
  .g3,.cells.c3,.scene{grid-template-columns:1fr;}
  .feat{grid-template-columns:1fr;}
  .decon,.tracks,.gwrap,.cgrid{grid-template-columns:1fr;}
  .pgrid{grid-template-columns:repeat(2,1fr);}
  .hero-stats{grid-template-columns:repeat(2,1fr);}
  .hero-visual{width:380px;height:380px;opacity:.45;}
  .hero-in{max-width:none;}
  .pagehead.has-glyph .wrap{grid-template-columns:1fr;gap:32px;}
  .pagehead .pglyph-slot{height:260px;}
  .pagehead .pglyph-slot .glyph{width:200px;height:200px;}
}
@media(max-width:880px){
  .nav-toggle{display:block;}
  .nav-links{
    position:absolute;top:var(--nav-h);left:0;right:0;
    background:var(--paper);border-bottom:1px solid var(--line);
    flex-direction:column;align-items:stretch;gap:0;padding:8px 0;
    box-shadow:0 18px 40px rgba(20,24,31,.09);
    max-height:0;overflow:hidden;transition:max-height .35s cubic-bezier(.4,0,.2,1);
  }
  .nav-links.open{max-height:460px;}
  .nav-links li{width:100%;}
  .nav-links a{display:block;padding:14px 32px;font-size:15px;border-bottom:1px solid rgba(0,0,0,.04);}
  .nav-links a::after{display:none;}
  .nav-cta{display:none;}
}
@media(max-width:760px){
  .wrap,.nav-in{padding:0 20px;}
  section{padding:72px 0;}
  .pagehead{padding:calc(var(--nav-h) + 52px) 0 48px;}
  header.hero{padding:132px 0 72px;}
  .g2,.g4,.cells.c2,.cells.c4,.pager,.pgrid,.crow,.hero-stats{grid-template-columns:1fr 1fr;}
  .pager,.crow{grid-template-columns:1fr;}
  .pager a.next{text-align:left;}
  .card{padding:28px 24px;}
  .feat-item{padding:30px 26px;}
  .dcard{padding:40px 26px;}
  .chem{padding:30px 26px;}
  .dglyph{font-size:74px;}
  .spec tbody th{width:120px;}
  .spec th,.spec td{padding:14px 16px;}
  .f-ct{text-align:left;}
  .ph-meta{gap:24px;}
  .strip .wrap{flex-direction:column;align-items:flex-start;}
  .hero-stats{grid-template-columns:repeat(2,1fr);}
  .hero-visual{display:none;}
  .hstat::before{display:none;}
  .hstat{padding:22px 16px 18px;}
  .hstat .v{font-size:30px;}
}
/* ================= 移动端增强 ================= */

/* iOS Safari：表单控件字号 <16px 时点击会自动放大页面且不回弹 */
@media(max-width:880px){
  .form-row input,.form-row select,.form-row textarea{font-size:16px;}
}

@media(max-width:600px){
  /* 极小屏统一单列，避免两列挤压 */
  .g2,.g3,.g4,
  .cells.c2,.cells.c3,.cells.c4,
  .pgrid,.crow,.hero-stats,.tracks,.scene,.feat{
    grid-template-columns:1fr;
  }

  /* 表格保底宽度：交由 .tw 容器横向滚动，避免被 body overflow-x 裁切 */
  .gtable{min-width:560px;}
  .spec{min-width:460px;}
  .compare{min-width:540px;}

  /* 横向滚动容器（由 site.js 自动包裹） */
  .tw{-webkit-overflow-scrolling:touch;position:relative;}
  .tw::-webkit-scrollbar{height:4px;}
  .tw::-webkit-scrollbar-track{background:transparent;}
  .tw::-webkit-scrollbar-thumb{background:var(--line);border-radius:2px;}
  .dark .tw::-webkit-scrollbar-thumb{background:#3A424E;}
  .tw-tip{display:block;}

  /* 横向滑动提示（由 site.js 按需插入，不溢出时自动移除） */
  .tw-tip{
    display:none;
    font-family:var(--mono);font-size:11.5px;letter-spacing:.06em;
    color:var(--stone-light);text-align:center;padding:10px 0 0;
    transition:opacity .3s;
  }
  .tw-tip.hide{opacity:0;}

  /* 卡片内边距收紧 */
  .card{padding:24px 20px;}
  .dcard{padding:32px 22px;}
  .chem{padding:26px 22px;}
  .feat-item{padding:26px 22px;}

  /* 按钮触控区略收但保持 ≥44px */
  .btn{padding:14px 26px;font-size:14px;}
}

@media(max-width:400px){
  .wrap,.nav-in{padding:0 16px;}
  .nav-links a{padding:13px 20px;font-size:14.5px;}

  /* 主行动按钮在极小屏占满宽度，拇指更好点 */
  .hero-btns .btn,
  .nf-btns .btn,
  .form-acts button{
    width:100%;justify-content:center;
  }
  .hero-btns,.nf-btns{gap:12px;}

  /* 表格再收一档 */
  .spec th,.spec td{padding:12px 14px;font-size:14px;}
  .gtable td,.gtable th{padding:14px 12px;font-size:14px;}

  /* 页脚联系方式更易点 */
  .fn{font-size:26px;}
}

@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .js .rv{opacity:1;transform:none;}
}