/* ============================================================
   科菲俪 KEFELE 官网 - 湖水青蓝 × 纯白 轻奢医美
   ============================================================ */
:root{
  --teal:#0E7C86;
  --teal-2:#14A0A8;
  --teal-deep:#0A5A64;
  --gold:#C9A55C;
  --teal-soft:rgba(14,124,134,.08);
  --ink:#333333;
  --ink-2:#666666;
  --ink-3:#999999;
  --white:#FFFFFF;
  --radius:16px;
  --radius-lg:24px;
  --shadow:0 12px 40px rgba(10,90,100,.08);
  --shadow-lg:0 20px 60px rgba(10,90,100,.14);
  --font:'PingFang SC','Microsoft YaHei','Helvetica Neue',sans-serif;
  --serif:Georgia,'Songti SC',serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--white);line-height:1.7;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 导航 ---------- */
.nav{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid rgba(14,124,134,.1)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:10px}
.brand img{height:40px;width:auto}
.brand .btxt{display:flex;flex-direction:column;line-height:1.1}
.brand .btn{font-size:18px;font-weight:700;letter-spacing:.5px;color:var(--teal-deep)}
.brand .bs{font-size:10px;letter-spacing:2px;color:var(--ink-3)}
.menu{display:flex;gap:8px}
.menu a{padding:8px 16px;border-radius:999px;font-size:15px;color:var(--ink-2);transition:.2s}
.menu a:hover{color:var(--teal)}
.menu a.active{background:var(--teal);color:#fff;font-weight:600}
.nav-toggle{display:none;background:none;border:none;font-size:26px;color:var(--teal);cursor:pointer}

/* ---------- Hero ---------- */
.hero{position:relative;background:linear-gradient(135deg,var(--teal-deep) 0%,var(--teal) 55%,var(--teal-2) 100%);color:#fff;overflow:hidden}
.hero::after{content:"";position:absolute;right:-120px;top:-120px;width:440px;height:440px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.18),transparent 70%)}
.hero::before{content:"";position:absolute;left:-80px;bottom:-160px;width:380px;height:380px;border-radius:50%;background:radial-gradient(circle,rgba(201,165,92,.22),transparent 70%)}
.hero-inner{position:relative;z-index:2;padding:120px 0 140px;max-width:720px}
.hero .en{font-size:14px;letter-spacing:4px;color:var(--gold);margin-bottom:18px;font-weight:600}
.hero h1{font-size:52px;line-height:1.25;font-weight:800;letter-spacing:1px;margin-bottom:24px}
.hero p{font-size:18px;color:rgba(255,255,255,.85);max-width:560px;margin-bottom:36px}
.hero .cta{display:inline-flex;gap:12px;flex-wrap:wrap}
.btn{padding:14px 32px;border-radius:999px;font-size:16px;font-weight:600;transition:.25s;cursor:pointer;border:none}
.btn-solid{background:#fff;color:var(--teal-deep)}
.btn-solid:hover{background:var(--gold);color:#fff;transform:translateY(-2px)}
.btn-ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.5)}
.btn-ghost:hover{border-color:#fff;transform:translateY(-2px)}

/* ---------- 区块通用 ---------- */
.section{padding:100px 0}
.section.alt{background:linear-gradient(180deg,#fff,var(--teal-soft))}
.section.deep{background:var(--teal-deep);color:#fff}
.sec-head{text-align:center;max-width:680px;margin:0 auto 60px}
.sec-head .kick{font-size:13px;letter-spacing:4px;color:var(--teal);font-weight:700;margin-bottom:12px}
.sec-head.deep .kick{color:var(--gold)}
.sec-head h2{font-size:36px;font-weight:800;color:var(--teal-deep);letter-spacing:.5px;margin-bottom:16px}
.sec-head.deep h2{color:#fff}
.sec-head p{color:var(--ink-2);font-size:16px}
.sec-head.deep p{color:rgba(255,255,255,.75)}

/* ---------- 数据可视化区(深青) ---------- */
.viz{display:grid;grid-template-columns:1.2fr 1fr;gap:48px;align-items:stretch}
.viz-chart{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius-lg);padding:32px;backdrop-filter:blur(4px)}
.vc-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:26px}
.vc-title{color:#fff;font-size:18px;font-weight:700;letter-spacing:.5px}
.vc-sub{color:var(--gold);font-size:14px;font-weight:600}
.vc-bars{display:flex;align-items:flex-end;gap:18px;height:220px;padding:0 6px}
.vc-bar{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%;cursor:pointer;position:relative}
.vc-bar .b{width:100%;max-width:44px;background:linear-gradient(180deg,var(--teal-2),var(--teal));border-radius:8px 8px 2px 2px;height:0;transition:height 1.1s cubic-bezier(.25,.8,.25,1);box-shadow:0 0 24px rgba(20,160,168,.35);position:relative}
.vc-bar:hover .b{background:linear-gradient(180deg,var(--gold),#b9924a)}
.vc-bar .b::after{content:attr(data-val);position:absolute;top:-28px;left:50%;transform:translateX(-50%);color:var(--gold);font-weight:700;font-size:14px;font-family:var(--serif);opacity:0;transition:.3s}
.vc-bar:hover .b::after{opacity:1}
.vc-bar .y{position:absolute;color:rgba(255,255,255,.7);font-size:13px;bottom:26px}
.vc-bar .t{color:rgba(255,255,255,.85);font-size:13px;margin-top:10px;white-space:nowrap}
.vc-legends{display:flex;flex-wrap:wrap;gap:16px;justify-content:center;margin-top:22px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1)}
.vc-legend{display:inline-flex;align-items:center;gap:6px;color:rgba(255,255,255,.7);font-size:13px}
.vc-legend .dot{width:8px;height:8px;border-radius:50%;background:var(--teal-2)}

.viz-nums{display:flex;flex-direction:column;gap:24px;justify-content:center}
.vn-row{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.vn-item{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:24px 18px;text-align:center;transition:.3s}
.vn-item:hover{background:rgba(255,255,255,.1);transform:translateY(-4px)}
.vn-ring{width:104px;height:104px;margin:0 auto 14px;border-radius:50%;position:relative;display:flex;align-items:center;justify-content:center;background:conic-gradient(var(--teal-2) 0deg,rgba(255,255,255,.14) 0deg)}
.vn-ring-soft{background:conic-gradient(var(--gold) 0deg,rgba(255,255,255,.14) 0deg)}
.vn-ring-in{width:76px;height:76px;border-radius:50%;background:var(--teal-deep);display:flex;align-items:baseline;justify-content:center;color:#fff}
.vn-ring-in .vn-num{font-family:var(--serif);font-size:26px;font-weight:700}
.vn-ring-in i{font-size:15px;font-style:normal;color:var(--gold);margin-left:2px}
.vn-lab{color:rgba(255,255,255,.75);font-size:14px;line-height:1.5}

/* 数字增长 */
.vc-bar.in .b{animation:growUp .9s ease forwards}
.scale-in{transform:scale(.6);opacity:0;transition:.5s}
.scale-in.in{transform:scale(1);opacity:1}

@media(max-width:900px){.viz{grid-template-columns:1fr}.vn-row{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.vc-bars{gap:10px}.vc-bar .t{font-size:11px}}

/* ---------- 卡片 ---------- */
.grid{display:grid;gap:24px}
.g4{grid-template-columns:repeat(4,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
.card{border-radius:var(--radius);overflow:hidden;background:#fff;box-shadow:var(--shadow);transition:.3s;border:1px solid rgba(14,124,134,.06)}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.card .ico{width:64px;height:64px;margin:0 auto 18px;border-radius:16px;display:flex;align-items:center;justify-content:center;background:var(--teal-soft);color:var(--teal);font-size:30px}
.card-body{padding:28px}
.card-body h3{font-size:20px;font-weight:700;color:var(--teal-deep);margin-bottom:10px}
.card-body p{color:var(--ink-2);font-size:15px}

/* ---------- 产品卡片 ---------- */
.product{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.3s;border:1px solid rgba(14,124,134,.06);display:flex;flex-direction:column}
.product:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.product .ph{aspect-ratio:1;background:linear-gradient(160deg,#f7fbfb,#eef6f6);display:flex;align-items:center;justify-content:center;padding:22px}
.product .ph img{max-height:200px;object-fit:contain}
.product .pb{padding:20px 22px;flex:1;display:flex;flex-direction:column}
.product .pb .pn{font-size:18px;font-weight:700;color:var(--teal-deep)}
.product .pb .ps{font-size:13px;color:var(--ink-3);margin:4px 0 10px}
.product .pb .pe{font-size:14px;color:var(--ink-2);flex:1}
.product .pb .pp{margin-top:14px;padding-top:14px;border-top:1px dashed rgba(14,124,134,.18);display:flex;justify-content:space-between;align-items:center}
.product .pb .pp .price{font-family:var(--serif);font-size:22px;color:var(--gold);font-weight:700}
.product .pb .pp .price small{font-size:13px;color:var(--ink-3);font-weight:400}

/* ---------- 图文交替 ---------- */
.dual{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.dual img{border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);object-fit:cover}
.dual .dtxt h3{font-size:28px;font-weight:800;color:var(--teal-deep);margin-bottom:16px}
.dual .dtxt p{color:var(--ink-2);margin-bottom:16px}
.dual .dtxt .tag{display:inline-block;background:var(--teal-soft);color:var(--teal);border-radius:999px;padding:4px 14px;font-size:13px;font-weight:600;margin-bottom:14px}

/* ---------- 专利墙 ---------- */
.pats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.pat{border-radius:var(--radius);overflow:hidden;background:#fff;box-shadow:var(--shadow)}
.pat img{aspect-ratio:3/4;object-fit:cover;transition:.3s}
.pat:hover img{transform:scale(1.04)}
.pat .cap{padding:12px;text-align:center;color:var(--ink-2);font-size:14px}

/* ---------- 联系 ---------- */
.contact-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:48px;align-items:center}
.info-card{background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:40px}
.info-item{display:flex;gap:16px;align-items:flex-start;padding:18px 0;border-bottom:1px solid rgba(14,124,134,.08)}
.info-item:last-child{border-bottom:none}
.info-item .ii{width:48px;height:48px;flex:none;border-radius:14px;background:var(--teal-soft);color:var(--teal);display:flex;align-items:center;justify-content:center;font-size:22px}
.info-item .it{font-size:15px;color:var(--ink-3)}
.info-item .iv{font-size:18px;font-weight:600;color:var(--teal-deep);margin-top:2px}

/* ---------- 页脚 ---------- */
.footer{background:var(--teal-deep);color:rgba(255,255,255,.8);padding:60px 0 26px}
.footer .fgrid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:40px;margin-bottom:40px}
.footer h4{color:#fff;font-size:16px;margin-bottom:16px;letter-spacing:.5px}
.footer a{display:block;padding:4px 0;font-size:14px;color:rgba(255,255,255,.72)}
.footer a:hover{color:var(--gold)}
.footer .fabout p{font-size:14px;color:rgba(255,255,255,.7);margin-top:14px;line-height:1.8}
.footer .fbrand img{height:44px;margin-bottom:8px}
.footer .copy{border-top:1px solid rgba(255,255,255,.12);padding-top:22px;text-align:center;font-size:13px;color:rgba(255,255,255,.5)}

/* ---------- 响应式 ---------- */
@media(max-width:900px){
  .g4,.g3{grid-template-columns:repeat(2,1fr)}
  .dual,.contact-grid{grid-template-columns:1fr;gap:36px}
  .stats{grid-template-columns:repeat(2,1fr)}
  .pats{grid-template-columns:repeat(2,1fr)}
  .hero h1{font-size:36px}
  .menu{position:fixed;inset:72px 0 auto 0;flex-direction:column;background:#fff;padding:16px 24px;gap:4px;display:none;box-shadow:var(--shadow-lg)}
  .menu.open{display:flex}
  .nav-toggle{display:block}
  .footer .fgrid{grid-template-columns:1fr 1fr}
}
@media(max-width:520px){
  .g4,.g3,.g2,.stats,.pats{grid-template-columns:1fr}
  .hero{padding:0}
  .hero-inner{padding:80px 0}
  .section{padding:64px 0}
  .sec-head h2{font-size:28px}
  .footer .fgrid{grid-template-columns:1fr}
}

/* 简单的入场动画 */
.reveal{opacity:0;transform:translateY(24px);transition:.6s ease}
.reveal.in{opacity:1;transform:none}