:root{
  --bg:#F6FBFD;
  --surface:#FFFFFF;
  --surface-2:#F0F8FB;
  --ink:#0B2A34;
  --ink-2:#4E7280;
  --ink-3:#87A4AE;
  --line:rgba(11,42,52,.10);
  --line-2:rgba(11,42,52,.06);
  --aqua:#0FA3B1;
  --aqua-deep:#06737F;
  --mint:#8FD9E3;
  --blush:#F0C3B2;
  --lilac:#D6D3F0;
  --sand:#F5E2C8;
  --shadow-s:0 6px 18px -8px rgba(9,60,74,.22);
  --shadow-m:0 22px 50px -26px rgba(9,60,74,.34);
  --shadow-l:0 40px 90px -40px rgba(9,60,74,.40);
  --r-s:14px;
  --r-m:22px;
  --r-l:34px;
  --serif:"Noto Serif SC",Georgia,"Songti SC",serif;
  --sans:"Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  --wrap:1200px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--sans);
  background:var(--bg);
  color:var(--ink);
  line-height:1.75;
  font-weight:400;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
::selection{background:var(--aqua);color:#fff}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 28px}
.serif{font-family:var(--serif)}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 26px;border-radius:999px;
  font-size:14.5px;font-weight:500;letter-spacing:.02em;
  transition:transform .35s cubic-bezier(.22,1,.36,1),box-shadow .35s,background .35s,color .35s;
  white-space:nowrap;
}
.btn-solid{background:var(--ink);color:#fff;box-shadow:var(--shadow-s)}
.btn-solid:hover{background:var(--aqua-deep);transform:translateY(-2px);box-shadow:var(--shadow-m)}
.btn-ghost{background:rgba(255,255,255,.7);color:var(--ink);border:1px solid var(--line);backdrop-filter:blur(8px)}
.btn-ghost:hover{border-color:var(--aqua);color:var(--aqua-deep);transform:translateY(-2px)}
.btn-line{border:1px solid var(--line);padding:11px 22px;font-size:14px}
.btn-line:hover{border-color:var(--aqua);color:var(--aqua-deep)}
.btn .arr{transition:transform .35s}
.btn:hover .arr{transform:translateX(3px)}

.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px 7px 12px;border-radius:999px;
  background:rgba(255,255,255,.75);border:1px solid var(--line);
  font-size:12.5px;color:var(--ink-2);letter-spacing:.03em;
  backdrop-filter:blur(10px);
}
.pill .dot{width:6px;height:6px;border-radius:50%;background:var(--aqua);box-shadow:0 0 0 4px rgba(15,163,177,.16)}

.eyebrow{
  font-size:12px;letter-spacing:.28em;text-transform:uppercase;
  color:var(--aqua-deep);font-weight:500;
}

/* ---------- 导航 ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  transition:background .4s,box-shadow .4s,backdrop-filter .4s,padding .4s;
  padding:18px 0;
}
.nav.solid{
  background:rgba(246,251,253,.82);
  backdrop-filter:blur(18px) saturate(1.4);
  box-shadow:0 1px 0 var(--line-2),0 14px 40px -34px rgba(9,60,74,.5);
  padding:11px 0;
}
.nav-in{display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{display:flex;align-items:center;gap:11px}
.logo-mark{
  width:34px;height:34px;border-radius:50%;
  background:radial-gradient(circle at 34% 30%,#BDEBF2,#0FA3B1 62%,#06737F);
  box-shadow:inset 0 0 0 5px rgba(255,255,255,.72),0 6px 16px -6px rgba(6,115,127,.7);
  position:relative;flex:none;
}
.logo-mark::after{content:"";position:absolute;width:8px;height:8px;border-radius:50%;background:#fff;top:8px;left:9px;opacity:.85}
.logo-txt{font-family:var(--serif);font-size:20px;font-weight:700;letter-spacing:.06em;line-height:1}
.logo-txt em{display:block;font-family:var(--sans);font-style:normal;font-size:8px;letter-spacing:.2em;color:var(--ink-3);font-weight:500;margin-top:3px}
.menu{display:flex;gap:34px;align-items:center}
.menu a{font-size:14.5px;color:var(--ink-2);position:relative;padding:4px 0;transition:color .3s}
.menu a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:1.5px;background:var(--aqua);transition:right .4s cubic-bezier(.22,1,.36,1)}
.menu a:hover{color:var(--ink)}
.menu a:hover::after{right:0}
.nav-cta{display:flex;align-items:center;gap:12px}
.burger{display:none;width:38px;height:38px;flex-direction:column;justify-content:center;gap:5px;align-items:center;border-radius:10px}
.burger span{width:18px;height:1.6px;background:var(--ink);border-radius:2px;transition:.35s}
.burger.on span:nth-child(1){transform:translateY(6.6px) rotate(45deg)}
.burger.on span:nth-child(2){opacity:0}
.burger.on span:nth-child(3){transform:translateY(-6.6px) rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{position:relative;padding:170px 0 96px;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:0;pointer-events:none}
.hero-bg .blob{position:absolute;border-radius:50%;filter:blur(70px);opacity:.6}
.b1{width:520px;height:520px;background:radial-gradient(circle,#B6E8F0,transparent 68%);top:-160px;right:-80px}
.b2{width:440px;height:440px;background:radial-gradient(circle,#E4DDF8,transparent 68%);top:120px;left:-160px;opacity:.75}
.b3{width:360px;height:360px;background:radial-gradient(circle,#FBE0D5,transparent 68%);bottom:-140px;left:32%}
.hero-bg .grid{
  position:absolute;inset:0;
  background-image:linear-gradient(var(--line-2) 1px,transparent 1px),linear-gradient(90deg,var(--line-2) 1px,transparent 1px);
  background-size:74px 74px;
  mask-image:radial-gradient(ellipse 78% 62% at 50% 40%,#000 30%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 78% 62% at 50% 40%,#000 30%,transparent 78%);
}
.hero-in{position:relative;z-index:1;display:grid;grid-template-columns:1.06fr .94fr;gap:64px;align-items:center}
.hero h1{
  font-family:var(--serif);font-weight:700;
  font-size:clamp(42px,5.6vw,74px);line-height:1.16;letter-spacing:.01em;
  margin:22px 0 24px;
}
.grad{
  background:linear-gradient(100deg,#06737F 0%,#0FA3B1 42%,#7BC9E8 72%,#C9A9E8 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero p.lede{font-size:16.5px;color:var(--ink-2);max-width:530px;line-height:1.9;font-weight:300}
.hero-actions{display:flex;gap:14px;margin:34px 0 30px;flex-wrap:wrap}
.hero-trust{display:flex;gap:26px;flex-wrap:wrap;align-items:center;font-size:13px;color:var(--ink-3)}
.hero-trust i{font-style:normal;display:flex;align-items:center;gap:7px}
.hero-trust i::before{content:"";width:14px;height:14px;border-radius:50%;background:linear-gradient(135deg,var(--mint),var(--aqua));flex:none}

/* Hero 视觉：镜片 */
.hero-visual{position:relative;display:flex;justify-content:center;align-items:center;min-height:440px}
.lens-stage{position:relative;width:min(430px,86vw);aspect-ratio:1}
.lens-stage::before{
  content:"";position:absolute;inset:-16%;border-radius:50%;
  background:radial-gradient(circle at 50% 50%,rgba(143,217,227,.42),rgba(214,211,240,.22) 46%,transparent 70%);
  filter:blur(6px);
}
.lens-ring{
  position:absolute;border-radius:50%;
  border:1px solid rgba(15,163,177,.22);
}
.lr1{inset:0;animation:spin 34s linear infinite}
.lr2{inset:9%;border-style:dashed;border-color:rgba(15,163,177,.2);animation:spin 26s linear infinite reverse}
.lr3{inset:19%;border-color:rgba(214,211,240,.6)}
.lens-core{
  position:absolute;inset:24%;border-radius:50%;
  background:
    radial-gradient(circle at 50% 50%,rgba(255,255,255,.94) 0 9%,transparent 9.5%),
    radial-gradient(circle at 50% 50%,#0B4A57 0 22%,#0E7C8C 22% 40%,#4FB9C9 40% 56%,#9FE0EA 56% 68%,#DFF6F9 68% 78%,rgba(255,255,255,0) 78%),
    conic-gradient(from 210deg,rgba(255,255,255,.85),rgba(255,255,255,0) 26%,rgba(255,255,255,.5) 52%,rgba(255,255,255,0) 76%,rgba(255,255,255,.85));
  box-shadow:0 30px 70px -28px rgba(6,115,127,.75),inset 0 0 40px rgba(255,255,255,.6);
  animation:breathe 7s ease-in-out infinite;
}
.lens-glint{
  position:absolute;top:22%;left:26%;width:22%;height:14%;border-radius:50%;
  background:rgba(255,255,255,.9);filter:blur(7px);transform:rotate(-28deg);
}
.chip{
  position:absolute;padding:9px 15px;border-radius:999px;
  background:rgba(255,255,255,.86);border:1px solid var(--line);
  backdrop-filter:blur(12px);box-shadow:var(--shadow-s);
  font-size:12.5px;color:var(--ink);white-space:nowrap;
  display:flex;align-items:center;gap:8px;
}
.chip b{font-family:var(--serif);font-size:15px;color:var(--aqua-deep)}
.chip.c1{top:6%;right:2%;animation:float 6s ease-in-out infinite}
.chip.c2{bottom:16%;left:-6%;animation:float 6s ease-in-out infinite .9s}
.chip.c3{bottom:2%;right:8%;animation:float 6s ease-in-out infinite 1.8s}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-13px)}}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes breathe{0%,100%{transform:scale(1)}50%{transform:scale(1.035)}}

/* ---------- 数据条 ---------- */
.strip{border-top:1px solid var(--line-2);border-bottom:1px solid var(--line-2);background:rgba(255,255,255,.5)}
.strip-in{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.stat{padding:36px 26px;text-align:center;border-right:1px solid var(--line-2)}
.stat:last-child{border-right:0}
.stat b{display:block;font-family:var(--serif);font-size:clamp(28px,3.2vw,40px);font-weight:700;letter-spacing:-.01em;line-height:1.1}
.stat b span{font-size:.5em;color:var(--ink-3);margin-left:3px;font-weight:400}
.stat p{font-size:12.5px;color:var(--ink-3);letter-spacing:.06em;margin-top:6px}

/* ---------- 区块通用 ---------- */
section{position:relative}
.sec{padding:110px 0}
.sec-head{max-width:660px;margin-bottom:56px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head h2{
  font-family:var(--serif);font-weight:700;
  font-size:clamp(30px,3.7vw,46px);line-height:1.3;margin:16px 0 16px;letter-spacing:.005em;
}
.sec-head p{color:var(--ink-2);font-size:15.5px;font-weight:300;line-height:1.9}

/* ---------- 理念 ---------- */
.philo{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{
  background:var(--surface);border:1px solid var(--line-2);border-radius:var(--r-m);
  padding:36px 30px;position:relative;overflow:hidden;
  transition:transform .5s cubic-bezier(.22,1,.36,1),box-shadow .5s,border-color .5s;
}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-m);border-color:rgba(15,163,177,.28)}
.card .ic{
  width:52px;height:52px;border-radius:16px;display:grid;place-items:center;margin-bottom:22px;
  background:linear-gradient(140deg,#E4F6F9,#F2F9FC);border:1px solid rgba(15,163,177,.16);
}
.card .ic svg{width:24px;height:24px;stroke:var(--aqua-deep);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.card h3{font-family:var(--serif);font-size:20px;font-weight:600;margin-bottom:10px}
.card p{font-size:14px;color:var(--ink-2);font-weight:300;line-height:1.85}
.card .num{
  position:absolute;right:22px;top:14px;font-family:var(--serif);
  font-size:56px;font-weight:700;color:rgba(15,163,177,.07);line-height:1;
}

/* ---------- 产品 ---------- */
.tabs{display:inline-flex;gap:4px;padding:5px;border-radius:999px;background:var(--surface-2);border:1px solid var(--line-2);margin-bottom:42px}
.tab{padding:10px 24px;border-radius:999px;font-size:14px;color:var(--ink-2);transition:.35s}
.tab.on{background:var(--surface);color:var(--ink);box-shadow:var(--shadow-s);font-weight:500}
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.prod-grid[hidden]{display:none}
.empty-prod{
  grid-column:1/-1;padding:58px 20px;text-align:center;color:var(--ink-3);font-weight:300;font-size:14px;
  border:1px dashed var(--line);border-radius:var(--r-m);background:rgba(255,255,255,.6);
}
.prod{
  background:var(--surface);border:1px solid var(--line-2);border-radius:var(--r-m);
  overflow:hidden;transition:transform .5s cubic-bezier(.22,1,.36,1),box-shadow .5s;
  display:flex;flex-direction:column;
}
.prod:hover{transform:translateY(-7px);box-shadow:var(--shadow-m)}
.prod-vis{
  height:196px;display:grid;place-items:center;position:relative;overflow:hidden;
  background:linear-gradient(150deg,#EAF7FA,#F7F4FC);
}
.prod-vis .halo{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:230px;height:230px;border-radius:50%;filter:blur(34px);opacity:.75}
.prod-disc{
  width:112px;height:112px;border-radius:50%;position:relative;
  box-shadow:0 20px 40px -20px rgba(6,115,127,.6),inset 0 0 0 8px rgba(255,255,255,.55);
  transition:transform .6s cubic-bezier(.22,1,.36,1);
}
.prod:hover .prod-disc{transform:scale(1.07) rotate(6deg)}
.prod-body{padding:26px 26px 30px;display:flex;flex-direction:column;flex:1}
.prod-tag{font-size:11px;letter-spacing:.18em;color:var(--aqua-deep);font-weight:500;margin-bottom:9px}
.prod h3{font-family:var(--serif);font-size:21px;font-weight:600;margin-bottom:6px}
.prod .desc{font-size:13.5px;color:var(--ink-2);font-weight:300;line-height:1.8;min-height:48px}
.specs{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0 20px}
.spec{font-size:11.5px;color:var(--ink-2);background:var(--surface-2);border:1px solid var(--line-2);padding:5px 11px;border-radius:999px}
.prod-foot{margin-top:auto;display:flex;align-items:flex-end;justify-content:space-between;gap:12px;padding-top:18px;border-top:1px solid var(--line-2)}
.price{font-family:var(--serif);font-size:26px;font-weight:700;letter-spacing:-.01em}
.price small{font-size:12px;color:var(--ink-3);font-weight:400;margin-left:4px;letter-spacing:0}
.price .from{display:block;font-family:var(--sans);font-size:11px;color:var(--ink-3);letter-spacing:.08em;margin-bottom:2px;font-weight:400}

/* ---------- 科技 ---------- */
.tech{background:linear-gradient(180deg,#FFFFFF,#F4FAFC 40%,#FFFFFF);border-top:1px solid var(--line-2);border-bottom:1px solid var(--line-2)}
.tech-in{display:grid;grid-template-columns:.95fr 1.05fr;gap:70px;align-items:center}
.tech-art{position:relative;display:grid;place-items:center;min-height:430px}
.tech-art svg{width:100%;max-width:440px;overflow:visible}
.layer-list{display:flex;flex-direction:column;gap:6px;margin-top:34px}
.layer{
  display:flex;gap:18px;padding:19px 20px;border-radius:var(--r-s);
  border:1px solid transparent;transition:.4s;cursor:default;
}
.layer.on,.layer:hover{background:var(--surface);border-color:var(--line);box-shadow:var(--shadow-s)}
.layer .idx{
  font-family:var(--serif);font-size:13px;color:var(--aqua-deep);font-weight:600;
  width:26px;height:26px;border-radius:50%;background:#E4F6F9;display:grid;place-items:center;flex:none;margin-top:3px;
}
.layer h4{font-size:15.5px;font-weight:500;margin-bottom:4px}
.layer p{font-size:13.5px;color:var(--ink-2);font-weight:300;line-height:1.8}

/* ---------- 选镜指南 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-bottom:64px}
.step{padding:34px 30px;border-radius:var(--r-m);background:var(--surface);border:1px solid var(--line-2);position:relative}
.step .n{font-family:var(--serif);font-size:13px;letter-spacing:.2em;color:var(--aqua-deep);font-weight:600}
.step h3{font-family:var(--serif);font-size:20px;font-weight:600;margin:12px 0 10px}
.step p{font-size:14px;color:var(--ink-2);font-weight:300;line-height:1.85}
.step::after{
  content:"";position:absolute;right:-11px;top:50%;width:22px;height:1px;
  background:linear-gradient(90deg,var(--aqua),transparent);
}
@media(max-width:1024px){.step::after{display:none}}
.tablewrap{border:1px solid var(--line);border-radius:var(--r-m);overflow:hidden;background:var(--surface);overflow-x:auto}
table{width:100%;border-collapse:collapse;min-width:720px}
th,td{padding:17px 22px;text-align:left;font-size:13.5px;border-bottom:1px solid var(--line-2)}
th{background:var(--surface-2);font-weight:500;color:var(--ink-2);font-size:12.5px;letter-spacing:.06em}
td{color:var(--ink-2);font-weight:300}
td:first-child{color:var(--ink);font-weight:500}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover td{background:#FBFDFE}

/* ---------- 口碑 ---------- */
.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.rev{background:var(--surface);border:1px solid var(--line-2);border-radius:var(--r-m);padding:32px 30px;display:flex;flex-direction:column}
.stars{display:flex;gap:3px;margin-bottom:18px}
.stars svg{width:15px;height:15px;fill:var(--aqua)}
.rev q{font-size:14.5px;color:var(--ink);font-weight:300;line-height:1.9;quotes:none;flex:1}
.rev-by{display:flex;align-items:center;gap:12px;margin-top:24px;padding-top:20px;border-top:1px solid var(--line-2)}
.av{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;font-family:var(--serif);font-size:15px;font-weight:600;color:#fff;flex:none}
.rev-by b{display:block;font-size:13.5px;font-weight:500}
.rev-by span{font-size:11.5px;color:var(--ink-3)}

/* ---------- CTA ---------- */
.cta{padding:0 0 110px}
.cta-box{
  position:relative;overflow:hidden;border-radius:var(--r-l);
  background:linear-gradient(135deg,#073A45 0%,#0A5C6B 48%,#0FA3B1 100%);
  padding:78px 64px;color:#fff;text-align:center;
}
.cta-box .glow{position:absolute;border-radius:50%;filter:blur(60px);opacity:.5}
.cta-box .g1{width:420px;height:420px;background:radial-gradient(circle,#8FD9E3,transparent 68%);top:-180px;left:-100px}
.cta-box .g2{width:380px;height:380px;background:radial-gradient(circle,#D6D3F0,transparent 68%);bottom:-200px;right:-80px}
.cta-box>*{position:relative;z-index:1}
.cta-box .eyebrow{color:#9FE0EA}
.cta-box h2{font-family:var(--serif);font-size:clamp(28px,3.4vw,42px);font-weight:700;margin:14px 0 16px;line-height:1.32}
.cta-box p{color:rgba(255,255,255,.78);font-weight:300;font-size:15.5px;max-width:520px;margin:0 auto 34px}
.form{display:flex;gap:10px;max-width:470px;margin:0 auto;flex-wrap:wrap;justify-content:center}
.form input{
  flex:1;min-width:220px;padding:15px 22px;border-radius:999px;border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.1);color:#fff;font-family:inherit;font-size:14.5px;outline:none;
  transition:.35s;backdrop-filter:blur(8px);
}
.form input::placeholder{color:rgba(255,255,255,.55)}
.form input:focus{border-color:rgba(255,255,255,.7);background:rgba(255,255,255,.16)}
.form .btn{background:#fff;color:#073A45;padding:15px 30px}
.form .btn:hover{background:#EAF9FB;transform:translateY(-2px)}
.cta-note{font-size:12px;color:rgba(255,255,255,.5);margin-top:18px}
/* 同意勾选：单独一行、点击区域够大、默认【不勾】。
   为什么不用「提交即代表同意」那行小字：
   《个人信息保护法》要求同意是「自愿、明确」作出的，
   「提交即代表同意」属于把同意捆绑进另一个动作，是最容易被质疑的写法。
   显式勾选虽然多一步，但这一步就是「明确」的证据。 */
.cta-consent{
  display:flex;align-items:flex-start;gap:9px;margin-top:16px;
  font-size:12.5px;line-height:1.75;color:rgba(255,255,255,.62);
  cursor:pointer;text-align:left;max-width:520px;
}
.cta-consent input{
  flex:none;width:16px;height:16px;margin-top:2px;accent-color:#0FA3B1;cursor:pointer;
}
.cta-consent a{color:#8FE3EC;text-decoration:none;border-bottom:1px solid rgba(143,227,236,.4)}
.cta-consent a:hover{border-bottom-color:#8FE3EC}

/* ---------- 页脚 ---------- */
footer{background:#062B33;color:rgba(255,255,255,.62);padding:72px 0 34px;font-size:13.5px}
.f-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:44px;padding-bottom:52px;border-bottom:1px solid rgba(255,255,255,.1)}
.f-brand .logo-txt{color:#fff}
.f-brand .logo-txt em{color:rgba(255,255,255,.4)}
.f-brand p{margin-top:20px;font-weight:300;line-height:1.9;max-width:290px;font-size:13px}
.f-col h4{color:#fff;font-size:13.5px;font-weight:500;margin-bottom:18px;letter-spacing:.06em}
.f-col a{display:block;padding:6px 0;font-weight:300;transition:color .3s}
.f-col a:hover{color:#8FD9E3}
.f-bot{padding-top:28px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:12px;color:rgba(255,255,255,.4)}
.f-bot .disc{max-width:640px;line-height:1.8}
/* ICP 备案号：法定公示项，单独一行居中，字号比版权行略大 */
.f-icp{padding-top:14px;text-align:center;font-size:13px;color:rgba(255,255,255,.55);
  font-variant-numeric:tabular-nums;border-top:1px solid rgba(255,255,255,.08);margin-top:24px}
.f-icp a{color:rgba(255,255,255,.72);text-decoration:none;border-bottom:1px solid rgba(255,255,255,.25)}
.f-icp a:hover{color:#8FE3EC;border-bottom-color:#8FE3EC}
.f-icp[hidden]{display:none}
/* 隐私政策 / 服务条款：这两个是必须点得到的真链接，不是装饰文案。
   页脚是深色底，所以单独给一套颜色 —— 别指望继承 .f-bot 的 rgba(.4)，
   那个对比度读不清，而法律链接恰恰必须让人读得清。 */
.f-bot .f-links{white-space:nowrap}
.f-bot .f-links a{color:rgba(255,255,255,.66);text-decoration:none;
  border-bottom:1px solid rgba(255,255,255,.22);transition:.3s}
.f-bot .f-links a:hover{color:#8FE3EC;border-bottom-color:#8FE3EC}
.socials{display:flex;gap:10px;margin-top:22px}
.socials a{width:34px;height:34px;border-radius:50%;border:1px solid rgba(255,255,255,.18);display:grid;place-items:center;transition:.35s}
.socials a:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.4)}
.socials svg{width:15px;height:15px;fill:rgba(255,255,255,.7)}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .9s cubic-bezier(.22,1,.36,1),transform .9s cubic-bezier(.22,1,.36,1)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition-duration:.01ms!important}
  .reveal{opacity:1;transform:none}
}

/* ---------- 响应式 ---------- */
@media(max-width:1024px){
  .hero-in{grid-template-columns:1fr;gap:52px}
  .hero-visual{min-height:380px;order:-1}
  .hero{padding:140px 0 70px}
  .tech-in{grid-template-columns:1fr;gap:44px}
  .philo,.prod-grid,.steps,.reviews{grid-template-columns:repeat(2,1fr)}
  .strip-in{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line-2)}
  .menu{display:none}
  .menu.open{
    display:flex;flex-direction:column;gap:0;position:absolute;top:calc(100% + 10px);left:28px;right:28px;
    background:rgba(255,255,255,.96);backdrop-filter:blur(20px);border:1px solid var(--line);
    border-radius:var(--r-m);padding:12px;box-shadow:var(--shadow-m);
  }
  .menu.open a{padding:13px 16px;border-radius:10px;font-size:15px;width:100%}
  .menu.open a:hover{background:var(--surface-2)}
  .burger{display:flex}
  .nav-cta .btn-ghost{display:none}
  .sec{padding:84px 0}
  .cta-box{padding:60px 34px}
  .f-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media(max-width:680px){
  .wrap{padding:0 20px}
  .philo,.prod-grid,.steps,.reviews{grid-template-columns:1fr}
  .hero h1{font-size:clamp(34px,9vw,44px)}
  .hero-trust{gap:14px 20px}
  .stat{padding:26px 14px}
  .f-grid{grid-template-columns:1fr}
  .cta-box{border-radius:var(--r-m);padding:52px 24px}
  .form .btn{width:100%;justify-content:center}
  .menu.open{left:20px;right:20px}
  .chip.c2{left:0}
}
/* ============================================================
   购物袋 / 结算 / 选度数
   ------------------------------------------------------------
   价格只用于「展示」—— localStorage 里的 price 是可以被用户改的。
   真正的金额由服务端按 product_variants.price 重算，
   下单成功后若与本地显示不一致，会提示「已按最新价结算」。
   ============================================================ */

/* 导航里的购物袋按钮 */
.cart-btn{position:relative;width:42px;height:42px;border-radius:50%;display:grid;place-items:center;
  background:rgba(255,255,255,.72);border:1px solid var(--line);color:var(--ink);
  transition:.22s;cursor:pointer;backdrop-filter:blur(8px);padding:0}
.cart-btn:hover{border-color:var(--aqua);color:var(--aqua-deep);transform:translateY(-2px)}
.cart-btn svg{width:19px;height:19px;stroke:currentColor;fill:none;stroke-width:1.7;
  stroke-linecap:round;stroke-linejoin:round}
.cart-btn .cnt{position:absolute;top:-5px;right:-5px;min-width:19px;height:19px;padding:0 5px;
  border-radius:10px;background:var(--aqua);color:#fff;font-size:11px;font-weight:600;
  display:grid;place-items:center;box-shadow:0 3px 8px -3px rgba(15,163,177,.9);
  font-variant-numeric:tabular-nums}
.cart-btn .cnt[hidden]{display:none}

/* 遮罩：抽屉和弹窗共用 */
.scrim{position:fixed;inset:0;background:rgba(9,40,50,.44);backdrop-filter:blur(3px);z-index:180;
  opacity:0;visibility:hidden;transition:.3s}
.scrim.on{opacity:1;visibility:visible}

/* 购物袋抽屉 */
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(432px,100%);background:var(--surface);
  z-index:190;display:flex;flex-direction:column;box-shadow:var(--shadow-l);
  transform:translateX(103%);transition:transform .4s cubic-bezier(.22,1,.36,1)}
.drawer.on{transform:none}
.drawer-h{padding:20px 24px;border-bottom:1px solid var(--line-2);display:flex;align-items:center;gap:12px}
.drawer-h h3{font-family:var(--serif);font-size:17px;font-weight:600}
.drawer-h .sp{flex:1}
.drawer-x{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;
  color:var(--ink-3);transition:.2s;cursor:pointer;background:transparent;border:0;padding:0}
.drawer-x:hover{background:var(--surface-2);color:var(--ink)}
.drawer-x svg{width:17px;height:17px;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round}
.drawer-b{flex:1;overflow-y:auto;padding:6px 24px}
.drawer-f{padding:18px 24px 22px;border-top:1px solid var(--line-2);background:var(--surface-2)}

/* 购物袋里的单行 */
.ci{display:grid;grid-template-columns:50px 1fr auto;gap:14px;padding:17px 0;
  border-bottom:1px dashed var(--line-2)}
.ci:last-child{border-bottom:0}
.ci-vis{width:50px;height:50px;border-radius:14px;background:var(--surface-2);
  display:grid;place-items:center}
.ci-disc{width:32px;height:32px;border-radius:50%}
.ci-name{font-size:14px;font-weight:500;line-height:1.42}
.ci-spec{font-size:12px;color:var(--ink-3);margin-top:3px;line-height:1.5}
.ci-price{font-size:12.5px;color:var(--ink-2);margin-top:5px;font-variant-numeric:tabular-nums}
.ci-r{display:flex;flex-direction:column;align-items:flex-end;gap:9px}
.ci-sum{font-size:14.5px;font-weight:600;font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.qty{display:flex;align-items:center;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.qty button{width:28px;height:28px;display:grid;place-items:center;background:transparent;border:0;
  color:var(--ink-2);font-size:15px;cursor:pointer;transition:.18s;padding:0;line-height:1}
.qty button:hover{background:var(--surface-2);color:var(--aqua-deep)}
.qty button:disabled{opacity:.35;cursor:not-allowed}
.qty span{min-width:30px;text-align:center;font-size:13px;font-variant-numeric:tabular-nums}
.ci-rm{font-size:11.5px;color:var(--ink-3);background:transparent;border:0;cursor:pointer;padding:1px 0}
.ci-rm:hover{color:#C4453A}
.cart-empty{padding:64px 20px;text-align:center;color:var(--ink-3);font-size:13.5px;font-weight:300;line-height:1.8}
.cart-empty svg{width:46px;height:46px;stroke:var(--line);fill:none;stroke-width:1.3;margin:0 auto 16px;display:block}
.cart-warn{margin:14px 0 0;padding:11px 14px;border-radius:12px;background:#FFF4EC;
  color:#9A6108;font-size:12.5px;line-height:1.65}
.sum-row{display:flex;justify-content:space-between;font-size:13px;color:var(--ink-2);margin-bottom:9px}
.sum-row b{font-weight:500;font-variant-numeric:tabular-nums}
.sum-row.total{font-size:16.5px;color:var(--ink);font-weight:600;margin:15px 0 0;padding-top:15px;
  border-top:1px solid var(--line-2)}
.sum-row.total b{font-weight:700;font-size:19px;letter-spacing:-.01em}
.drawer-f .btn{width:100%;justify-content:center;margin-top:15px;padding:14px 22px}
.drawer-f .btn[disabled]{opacity:.45;cursor:not-allowed;transform:none}
.pay-note{margin-top:12px;font-size:11.5px;color:var(--ink-3);text-align:center;line-height:1.7}

/* 弹窗（选度数 / 结算 / 查单） */
.modal-w{position:fixed;inset:0;z-index:200;display:grid;place-items:center;padding:22px;
  opacity:0;visibility:hidden;transition:.26s}
.modal-w.on{opacity:1;visibility:visible}
.modal-c{background:var(--surface);border-radius:var(--r-m);box-shadow:var(--shadow-l);width:100%;
  max-width:600px;max-height:min(88vh,780px);display:flex;flex-direction:column;overflow:hidden;
  transform:translateY(16px) scale(.98);transition:.34s cubic-bezier(.22,1,.36,1)}
.modal-w.on .modal-c{transform:none}
.modal-c.wide{max-width:680px}
.modal-h{padding:22px 26px;border-bottom:1px solid var(--line-2);display:flex;align-items:center;gap:12px;flex:none}
.modal-h h3{font-family:var(--serif);font-size:18px;font-weight:600;line-height:1.35}
.modal-h .sub{font-size:12.5px;color:var(--ink-3);margin-top:3px;font-weight:300}
.modal-h .sp{flex:1}
.modal-b{flex:1;overflow-y:auto;padding:24px 26px}
.modal-f{padding:18px 26px;border-top:1px solid var(--line-2);display:flex;gap:11px;
  justify-content:flex-end;align-items:center;background:var(--surface-2);flex:none}
.modal-f .sp{flex:1}
.modal-f .btn{padding:12px 24px}

/* 选度数的可选规格按钮。
   类名用 .deg 而不是 .chip —— 站内已有的 .chip 是首页那些 position:absolute
   的浮动装饰标签，直接叫 .chip 会被它的绝对定位带跑，和下方摘要卡片重叠。 */
.pick-grp{margin-bottom:22px}
.pick-grp:last-child{margin-bottom:0}
.pick-grp > label{display:block;font-size:12.5px;font-weight:600;color:var(--ink-2);margin-bottom:11px}
.degs{display:flex;flex-wrap:wrap;gap:8px}
.deg{padding:9px 16px;border-radius:11px;border:1px solid var(--line);background:var(--surface);
  font-size:13.5px;color:var(--ink-2);cursor:pointer;transition:.18s;font-variant-numeric:tabular-nums;
  font-family:inherit;position:static;white-space:nowrap}
.deg:hover:not(.off){border-color:var(--aqua);color:var(--aqua-deep)}
.deg.on{background:var(--aqua);border-color:var(--aqua);color:#fff;box-shadow:var(--shadow-s)}
.deg.off{opacity:.34;cursor:not-allowed}
.deg .n{font-size:11px;opacity:.7;margin-left:5px}
.pick-sum{margin-top:20px;padding:15px 18px;border-radius:14px;background:var(--surface-2);
  display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.pick-sum .t{flex:1;font-size:13.5px;color:var(--ink-2);line-height:1.6}
.pick-sum .p{font-family:var(--serif);font-size:22px;font-weight:700;letter-spacing:-.01em}

/* 表单字段（浅色弹窗用，区别于深色 CTA 的 .form） */
.ff{display:flex;flex-direction:column;gap:7px;margin-bottom:16px}
.ff > label{font-size:12.5px;color:var(--ink-2);font-weight:500}
.ff > label i{color:#C4453A;font-style:normal;margin-left:2px}
.ff input,.ff textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:12px;
  background:var(--surface);font-size:14px;font-family:inherit;color:var(--ink);transition:.2s}
.ff input::placeholder,.ff textarea::placeholder{color:var(--ink-3)}
.ff input:focus,.ff textarea:focus{outline:0;border-color:var(--aqua);
  box-shadow:0 0 0 3px rgba(15,163,177,.13)}
.ff textarea{resize:vertical;min-height:76px;line-height:1.6}
.ff-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:560px){.ff-row{grid-template-columns:1fr}}
.err-note{padding:12px 15px;border-radius:12px;background:#FDECE9;color:#9E3323;
  font-size:12.5px;line-height:1.65;margin-bottom:16px}

/* 下单成功 */
.done{text-align:center;padding:14px 0 6px}
.done-ico{width:60px;height:60px;border-radius:50%;background:#E6F7F1;display:grid;place-items:center;
  margin:0 auto 20px}
.done-ico svg{width:28px;height:28px;stroke:#0A7256;fill:none;stroke-width:2.2;stroke-linecap:round;
  stroke-linejoin:round}
.done h3{font-family:var(--serif);font-size:21px;font-weight:700;margin-bottom:9px}
.done p{font-size:13.5px;color:var(--ink-2);line-height:1.75;font-weight:300}
.done-no{margin:20px auto 4px;padding:15px 20px;border-radius:14px;background:var(--surface-2);
  display:inline-block;min-width:230px}
.done-no span{display:block;font-size:11.5px;color:var(--ink-3);margin-bottom:6px;letter-spacing:.06em}
.done-no b{font-family:var(--serif);font-size:20px;letter-spacing:.01em}

/* ---------- 品牌页：导航购物袋入口 ---------- */
/* 品牌页不再自带弹窗式购物袋，角标只反映数量，点击直接进 cart.html */
.nav-cart{
  position:relative;display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:50%;border:1px solid var(--line);
  background:rgba(255,255,255,.7);backdrop-filter:blur(8px);
  transition:border-color .35s,transform .35s,color .35s}
.nav-cart:hover{border-color:var(--aqua);color:var(--aqua-deep);transform:translateY(-2px)}
.nav-cart svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.6;
  stroke-linecap:round;stroke-linejoin:round}
.nav-cart .cnt{
  position:absolute;top:-2px;right:-2px;min-width:17px;height:17px;padding:0 4px;
  border-radius:9px;background:var(--aqua);color:#fff;font-size:10.5px;font-weight:600;
  display:grid;place-items:center;line-height:1;font-style:normal}
.nav-cart .cnt[hidden]{display:none}

/* ---------- 品牌页：资质公示与售后卡片 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.qual-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-s);
  padding:22px 24px;box-shadow:var(--shadow-s)}
.qual-card h4{
  font-family:var(--serif);font-size:16px;font-weight:600;margin-bottom:14px;
  padding-bottom:12px;border-bottom:1px solid var(--line-2)}
.qual-kv{display:flex;gap:12px;font-size:13.5px;line-height:1.95;margin-bottom:4px}
.qual-kv b{flex:none;width:88px;color:var(--ink-3);font-weight:400}
.qual-kv span{flex:1;min-width:0;color:var(--ink);word-break:break-all}
@media(max-width:980px){
  .grid-3{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:640px){
  .grid-3{grid-template-columns:1fr}
}
.done-lines{margin-top:22px;text-align:left;border-top:1px dashed var(--line-2);padding-top:18px}