*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;background:#1E2424;color:#EAEAE2;line-height:1.6;font-size:16px;overflow-x:hidden}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%}
ul{list-style:none}
.rc2m{max-width:1200px;margin:0 auto;padding:0 20px}

/* ====== HEADER ====== */
.rh7m{position:sticky;top:0;z-index:100;background:rgba(30,36,36,0.95);backdrop-filter:blur(10px);border-bottom:1px solid rgba(216,168,96,0.2)}
.rh7m .rc2m{display:flex;align-items:center;justify-content:space-between;height:72px}
.rl8d{display:flex;align-items:center;gap:10px}
.ri3s{width:42px;height:42px;border-radius:8px;object-fit:cover;border:2px solid #D8A860}
.rt7n{font-size:18px;font-weight:700;color:#EAEAE2;letter-spacing:0.5px}
.rn9b{display:flex;gap:24px}
.rn9b a{font-size:15px;color:#8C9892;transition:color 0.2s}
.rn9b a:hover{color:#D8A860}
.rr4a{display:inline-block;padding:8px 22px;background:#D8A860;color:#1E2424;border-radius:8px;font-size:14px;font-weight:700;transition:transform 0.2s,box-shadow 0.2s}
.rr4a:hover{transform:translateY(-2px);box-shadow:0 6px 18px rgba(216,168,96,0.3)}

/* ====== HERO ====== */
.rb7v{position:relative;padding:80px 0 100px;background:
  repeating-linear-gradient(45deg,rgba(216,168,96,0.03) 0 2px,transparent 2px 22px),
  repeating-linear-gradient(-45deg,rgba(88,168,144,0.03) 0 2px,transparent 2px 22px),
  #1E2424;
  overflow:hidden}
.rb7v::before{content:"";position:absolute;top:-70px;left:-50px;width:340px;height:340px;background:radial-gradient(circle,rgba(216,168,96,0.1) 0%,transparent 70%);border-radius:50%}
.rh2c{ max-width:1200px;margin:0 auto;padding:0 20px;display:flex;align-items:center;gap:60px;position:relative;z-index:1 }
.rl9p{flex:1}
.rv6b{display:inline-block;padding:6px 16px;background:rgba(216,168,96,0.12);color:#D8A860;border:1px solid rgba(216,168,96,0.3);border-radius:8px;font-size:13px;font-weight:600;letter-spacing:1px;margin-bottom:18px}
.rp5m{font-size:42px;font-weight:800;color:#EAEAE2;line-height:1.25;margin-bottom:18px;letter-spacing:-0.5px}
.rs4q{font-size:16px;color:#8C9892;line-height:1.75;margin-bottom:24px;max-width:520px}
.rf7d{display:flex;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.rf7d li{position:relative;padding-left:24px;color:#EAEAE2;font-size:15px;font-weight:500}
.rf7d li::before{content:"";position:absolute;left:0;top:5px;width:13px;height:13px;background:#58A890;transform:rotate(45deg);border-radius:2px}
.rw3c{display:flex;gap:14px;align-items:center}
.rm8z{display:inline-block;padding:16px 36px;background:#D8A860;color:#1E2424;border-radius:8px;font-size:16px;font-weight:700;letter-spacing:1px;box-shadow:0 8px 24px rgba(216,168,96,0.25);transition:transform 0.2s,box-shadow 0.2s}
.rm8z:hover{transform:translateY(-3px);box-shadow:0 12px 32px rgba(216,168,96,0.38)}
.ro6x{display:inline-block;padding:16px 28px;background:transparent;color:#58A890;border:2px solid rgba(88,168,144,0.4);border-radius:8px;font-size:15px;font-weight:600;transition:all 0.2s}
.ro6x:hover{border-color:#58A890;background:rgba(88,168,144,0.08)}

/* hero右侧 安装数据仪表盘 */
.rk1w{flex:0 0 480px}
.rk2e{background:#2C3838;border-radius:8px;padding:26px;box-shadow:0 16px 48px rgba(0,0,0,0.45);position:relative;overflow:hidden;border:1px solid rgba(216,168,96,0.15)}
.rk2e::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:#D8A860}
.rk0b{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;padding-bottom:14px;border-bottom:1px dashed rgba(216,168,96,0.25)}
.rk1a{display:inline-block;padding:4px 12px;background:#D8A860;color:#1E2424;border-radius:6px;font-size:12px;font-weight:700;letter-spacing:1px}
.rk2b{font-size:13px;color:#8C9892;font-weight:500}
.rk3g{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-bottom:18px}
.rk4a,.rk4b,.rk4c,.rk4d{background:#253030;border-radius:8px;padding:16px 14px;border-left:3px solid #D8A860}
.rk4b{border-left-color:#58A890}
.rk4c{border-left-color:#D8A860}
.rk4d{border-left-color:#58A890}
.rk5a{display:block;font-size:24px;font-weight:800;color:#EAEAE2;font-family:monospace;line-height:1.2}
.rk6a{font-size:12px;color:#8C9892}
.rk7b{background:#253030;border-radius:8px;padding:14px 16px;margin-bottom:12px}
.rk7c{display:block;font-size:12px;color:#8C9892;font-weight:600;margin-bottom:10px;letter-spacing:1px}
.rk7d{display:flex;align-items:flex-end;justify-content:space-between;height:80px;gap:6px}
.rk7e{flex:1;display:flex;align-items:flex-end;background:transparent}
.rk7e i{display:block;width:100%;background:linear-gradient(180deg,#58A890,#3A6A5E);border-radius:3px 3px 0 0}
.rk7f i{background:linear-gradient(180deg,#D8A860,#A87838)}
.rk8b{display:flex;align-items:center;gap:10px;background:rgba(88,168,144,0.08);border:1px solid rgba(88,168,144,0.2);border-radius:8px;padding:10px 14px}
.rk8c{flex-shrink:0;padding:2px 10px;background:#58A890;color:#1E2424;border-radius:6px;font-size:11px;font-weight:700}
.rk8d{font-size:12px;color:#8C9892}

/* ====== SECTION COMMON ====== */
.rc9y,.ry6d,.rw9u,.rz2m,.rq8t,.rv8k{padding:80px 0}
.rc9y{background:#1E2424}
.ry6d{background:#253030}
.rw9u{background:#1E2424}
.rz2m{background:#253030}
.rq8t{background:#1E2424}
.rv8k{background:#253030}
.rm1x{display:flex;flex-direction:column;align-items:center;gap:8px;margin-bottom:48px}
.rp8y{font-size:13px;color:#D8A860;font-weight:600;letter-spacing:3px;text-transform:uppercase;padding:4px 14px;background:rgba(216,168,96,0.1);border:1px solid rgba(216,168,96,0.25);border-radius:8px}
.rt3z{font-size:32px;font-weight:800;color:#EAEAE2;letter-spacing:2px}
.rx7b{max-width:780px;margin:0 auto 48px;text-align:center;font-size:16px;color:#8C9892;line-height:1.8}

/* ====== 产品介绍 GALLERY 4 grid ====== */
.rr5h{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.rf2p{background:#2C3838;border-radius:8px;overflow:hidden;transition:transform 0.3s,box-shadow 0.3s;border:1px solid rgba(216,168,96,0.12)}
.rf2p:hover{transform:translateY(-6px);box-shadow:0 16px 36px rgba(0,0,0,0.5);border-color:rgba(216,168,96,0.35)}
.rf2p img{width:100%;height:380px;object-fit:cover}
.rf2p figcaption{padding:14px 16px;text-align:center;font-size:14px;color:#8C9892;font-weight:500;border-top:1px solid rgba(216,168,96,0.12)}

/* ====== 优势亮点 ====== */
.rg2d{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-bottom:40px}
.rc7h{background:#2C3838;border-radius:8px;padding:28px 24px;position:relative;transition:all 0.3s;border:1px solid rgba(216,168,96,0.1);overflow:hidden}
.rc7h::before{content:"";position:absolute;top:0;left:0;width:100%;height:3px;background:#D8A860;transform:scaleX(0);transform-origin:left;transition:transform 0.3s}
.rc7h:hover{transform:translateY(-4px);box-shadow:0 12px 30px rgba(0,0,0,0.45);border-color:rgba(216,168,96,0.3)}
.rc7h:hover::before{transform:scaleX(1)}
.rn9m{font-size:14px;color:#D8A860;font-weight:800;letter-spacing:1px;font-family:monospace;display:inline-block;padding:3px 10px;background:rgba(216,168,96,0.1);border-radius:6px;margin-bottom:14px}
.rb3q{display:block;font-size:18px;font-weight:700;color:#EAEAE2;margin-bottom:10px}
.rx8v{font-size:14px;color:#8C9892;line-height:1.7}
.rb1w{display:flex;align-items:center;justify-content:center;gap:8px;margin:0 auto;width:fit-content;padding:14px 36px;background:#D8A860;color:#1E2424;border-radius:8px;font-size:15px;font-weight:700;letter-spacing:1px;box-shadow:0 6px 18px rgba(216,168,96,0.25);transition:transform 0.2s,box-shadow 0.2s}
.rb1w:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(216,168,96,0.38)}
.ra9r{display:inline-block;width:8px;height:8px;border:solid #1E2424;border-width:0 2px 2px 0;transform:rotate(-45deg);margin-left:4px}

/* ====== 使用流程 ====== */
.rg8g{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:40px;position:relative}
.rg8g::before{content:"";position:absolute;top:38px;left:10%;right:10%;height:2px;background:repeating-linear-gradient(90deg,#58A890 0,#58A890 6px,transparent 6px,transparent 14px)}
.rs5k{background:#2C3838;border-radius:8px;padding:30px 22px;text-align:center;position:relative;z-index:1;border:1px solid rgba(216,168,96,0.12);box-shadow:0 4px 14px rgba(0,0,0,0.3)}
.rn2v{display:flex;align-items:center;justify-content:center;width:76px;height:76px;margin:0 auto 18px;background:#D8A860;color:#1E2424;font-size:32px;font-weight:800;border-radius:8px;box-shadow:0 8px 22px rgba(216,168,96,0.25);border:4px solid #1E2424}
.rp8m{display:block;font-size:17px;font-weight:700;color:#EAEAE2;margin-bottom:10px}
.ro7b{font-size:13px;color:#8C9892;line-height:1.7}

/* ====== 产品资讯 ====== */
.rg7h{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.rc5m{background:#2C3838;border-radius:8px;padding:24px;transition:transform 0.3s,box-shadow 0.3s;border:1px solid rgba(216,168,96,0.1);position:relative}
.rc5m::after{content:"NEW";position:absolute;top:-8px;right:14px;padding:3px 10px;background:#58A890;color:#1E2424;font-size:10px;font-weight:700;letter-spacing:1px;border-radius:6px}
.rc5m:hover{transform:translateY(-4px);box-shadow:0 14px 32px rgba(0,0,0,0.45);border-color:rgba(216,168,96,0.3)}
.rd6b{font-size:12px;color:#D8A860;font-family:monospace;font-weight:600;display:block;margin-bottom:10px}
.re4f{font-size:16px;font-weight:700;color:#EAEAE2;display:block;margin-bottom:10px;line-height:1.5}
.rf9x{font-size:13px;color:#8C9892;line-height:1.7;margin-bottom:14px}
.rk8k{font-size:13px;color:#58A890;font-weight:600;letter-spacing:1px}

/* ====== 常见问题 ====== */
.rl3n{display:flex;flex-direction:column;gap:14px;margin-bottom:40px;max-width:880px;margin-left:auto;margin-right:auto}
.re9u{background:#2C3838;border-radius:8px;overflow:hidden;border:1px solid rgba(216,168,96,0.12);transition:box-shadow 0.2s}
.re9u:hover{box-shadow:0 6px 18px rgba(0,0,0,0.35)}
.rq5m{padding:18px 24px;font-size:16px;font-weight:600;color:#EAEAE2;cursor:pointer;display:flex;align-items:center;justify-content:space-between;position:relative}
.rq5m::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:#D8A860}
.rq5m::after{content:"";display:inline-block;width:8px;height:8px;border:solid #D8A860;border-width:0 2px 2px 0;transform:rotate(45deg);transition:transform 0.3s;margin-left:14px;flex-shrink:0}
.re9u.rq4n .rq5m::after{transform:rotate(-135deg)}
.ra6x{max-height:0;overflow:hidden;transition:max-height 0.3s ease}
.ra6x p{padding:0 24px 18px;font-size:14px;color:#8C9892;line-height:1.8}
.re9u.rq4n .ra6x{max-height:200px}

/* ====== 用户评价 ====== */
.rc3b{columns:3;column-gap:20px;margin-bottom:40px}
.rv9c{background:#2C3838;border-radius:8px;padding:22px;margin-bottom:20px;break-inside:avoid;border:1px solid rgba(216,168,96,0.1);transition:transform 0.2s,box-shadow 0.2s;box-shadow:0 3px 10px rgba(0,0,0,0.25)}
.rv9c:hover{transform:translateY(-3px);box-shadow:0 10px 24px rgba(0,0,0,0.45);border-color:rgba(216,168,96,0.3)}
.rh5k{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.ra8m{width:42px;height:42px;border-radius:8px;background:#D8A860;color:#1E2424;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;flex-shrink:0}
.ri1p{display:flex;flex-direction:column;gap:2px}
.rn7g{font-size:14px;font-weight:600;color:#EAEAE2}
.rt2z{font-size:12px;color:#8C9892;font-style:normal;font-family:monospace}
.rj3b{font-size:14px;color:#8C9892;line-height:1.75}

/* ====== FOOTER ====== */
.rt8b{background:#141A1A;color:#8C9892;padding:60px 0 30px}
.rd4a{display:flex;align-items:center;gap:20px;margin-bottom:30px;padding-bottom:30px;border-bottom:1px solid #2A3434}
.rl8d{display:flex;align-items:center;gap:10px;flex-shrink:0}
.rt8b .ri3s{border-color:#D8A860}
.rt8b .rt7n{color:#EAEAE2}
.rs2q{font-size:14px;color:#6C7872;line-height:1.7;max-width:600px}
.rf5k{display:flex;flex-wrap:wrap;gap:24px;margin-bottom:30px;padding-bottom:30px;border-bottom:1px solid #2A3434}
.rf5k a{font-size:14px;color:#8C9892;transition:color 0.2s}
.rf5k a:hover{color:#D8A860}
.rg6k{text-align:center}
.rg6k p{font-size:13px;color:#5C6862;margin-bottom:6px}

/* ====== MOBILE 768px ====== */
@media (max-width:768px){
  body{font-size:14px}
  .rc2m{padding:0 14px}
  .rh7m .rc2m{height:60px}
  .ri3s{width:36px;height:36px}
  .rt7n{font-size:15px}
  .rn9b{display:none}
  .rr4a{padding:6px 16px;font-size:13px}

  .rb7v{padding:40px 0 60px}
  .rh2c{flex-direction:column;gap:36px}
  .rl9p{width:100%}
  .rv6b{font-size:12px;padding:5px 12px}
  .rp5m{font-size:28px;line-height:1.3}
  .rs4q{font-size:14px}
  .rf7d{gap:14px;margin-bottom:24px}
  .rf7d li{font-size:13px;padding-left:22px}
  .rf7d li::before{top:5px;width:11px;height:11px}
  .rw3c{flex-direction:column;gap:12px;width:100%}
  .rm8z{width:100%;text-align:center;padding:14px 20px;font-size:15px}
  .ro6x{width:100%;text-align:center;padding:14px 20px}

  .rk1w{flex:none;width:100%}
  .rk2e{padding:20px}
  .rk0b{margin-bottom:14px;padding-bottom:12px}
  .rk1a{font-size:11px;padding:3px 10px}
  .rk2b{font-size:12px}
  .rk5a{font-size:20px}
  .rk7d{height:60px}
  .rk8d{font-size:11px}

  .rc9y,.ry6d,.rw9u,.rz2m,.rq8t,.rv8k{padding:48px 0}
  .rm1x{margin-bottom:32px}
  .rp8y{font-size:12px;letter-spacing:2px}
  .rt3z{font-size:24px;letter-spacing:1px}
  .rx7b{font-size:14px;margin-bottom:32px}

  .rr5h{grid-template-columns:repeat(2,1fr);gap:12px}
  .rf2p img{height:200px}
  .rf2p figcaption{font-size:12px;padding:10px}

  .rg2d{grid-template-columns:1fr;gap:14px;margin-bottom:28px}
  .rc7h{padding:22px 18px}
  .rn9m{font-size:13px}
  .rb3q{font-size:17px}
  .rx8v{font-size:13px}
  .rb1w{padding:12px 28px;font-size:14px}

  .rg8g{grid-template-columns:1fr;gap:18px;margin-bottom:28px}
  .rg8g::before{display:none}
  .rs5k{padding:24px 18px}
  .rn2v{width:60px;height:60px;font-size:24px;border-radius:8px}
  .rp8m{font-size:16px}
  .ro7b{font-size:13px}

  .rg7h{grid-template-columns:1fr;gap:14px}
  .rc5m{padding:18px}
  .re4f{font-size:15px}
  .rf9x{font-size:13px}

  .rl3n{gap:10px}
  .rq5m{padding:14px 18px;font-size:14px;padding-left:22px}
  .ra6x p{padding:0 18px 14px;font-size:13px}

  .rc3b{columns:1;gap:0;margin-bottom:28px}
  .rv9c{padding:18px;margin-bottom:14px}
  .ra8m{width:38px;height:38px;font-size:14px}
  .rn7g{font-size:13px}
  .rt2z{font-size:11px}
  .rj3b{font-size:13px}

  .rt8b{padding:40px 0 24px}
  .rd4a{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:24px;padding-bottom:24px}
  .rs2q{font-size:13px}
  .rf5k{gap:14px 18px;margin-bottom:24px;padding-bottom:24px}
  .rf5k a{font-size:13px}
  .rg6k p{font-size:12px}
}