/* dl_minimal — 极简留白 Minimal
   纯白底 · 大量留白 · 单一品牌蓝 · 发丝级细线 */
:root{
  --dm-line:#e9eaee;
  --dm-ink:#14161a;
  --dm-muted:#6b7280;
  --dm-accent:#2f5bea;
  --dm-soft:#fafbfc;
}
*{margin:0;padding:0;box-sizing:border-box}
body{
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;
  color:var(--dm-ink);background:#fff;line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit}
.u_0502_3897{max-width:1040px;margin:0 auto;padding:0 32px}
.u_e2a8_1c9c{max-width:760px}

/* Header */
.u_7064_b7ef{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.86);backdrop-filter:blur(8px);border-bottom:1px solid var(--dm-line)}
.u_0670_0334{display:flex;align-items:center;justify-content:space-between;height:64px;gap:20px}
.u_b5a8_b457{display:flex;align-items:center;gap:10px;font-weight:600;font-size:16px;text-decoration:none}
.u_48d3_d94f{width:26px;height:26px;border:1.5px solid var(--dm-ink);border-radius:7px;display:grid;place-items:center;font-size:12px}
.u_1e03_bec9{display:flex;gap:28px;font-size:14px;color:var(--dm-muted)}
.u_1e03_bec9 a{color:inherit;text-decoration:none;transition:color .15s}
.u_1e03_bec9 a:hover{color:var(--dm-ink)}
.u_4efb_9721{font-size:13.5px;color:var(--dm-ink);text-decoration:none;border:1px solid var(--dm-ink);border-radius:999px;padding:8px 16px;white-space:nowrap;transition:.15s}
.u_4efb_9721:hover{background:var(--dm-ink);color:#fff}
.u_8039_3046{display:none;background:none;border:1px solid var(--dm-line);border-radius:8px;font-size:18px;width:38px;height:34px;cursor:pointer;color:var(--dm-ink)}

/* Hero */
.u_4ddc_5183{padding:84px 0 64px;text-align:center}
.u_57d5_20ec{font-size:12px;letter-spacing:2px;text-transform:uppercase;color:var(--dm-accent);margin-bottom:20px}
.u_86a5_dfea{font-size:56px;line-height:1.08;font-weight:700;letter-spacing:-1.5px;max-width:800px;margin:0 auto}
.u_86a5_dfea em{font-style:normal;color:var(--dm-accent)}
.u_09fc_2e55{font-size:18px;color:var(--dm-muted);max-width:540px;margin:24px auto 0}
.u_dca2_399d{display:flex;gap:34px;justify-content:center;margin:36px 0 32px;font-size:13px;color:var(--dm-muted);flex-wrap:wrap}
.u_dca2_399d div{min-width:80px}
.u_dca2_399d b{display:block;color:var(--dm-ink);font-size:19px;font-weight:600;margin-bottom:2px}
.u_2871_141b{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.u_d91d_e46b{border-radius:12px;padding:14px 26px;font-size:15px;text-decoration:none;display:inline-flex;align-items:center;gap:10px;font-weight:500;line-height:1.2;transition:.15s}
.u_d91d_e46b small{display:block;font-size:11px;font-weight:400;opacity:.6}
.u_d91d_e46b.solid{background:var(--dm-ink);color:#fff}
.u_d91d_e46b.solid:hover{background:#000}
.u_d91d_e46b.line{background:#fff;color:var(--dm-ink);border:1px solid var(--dm-line)}
.u_d91d_e46b.line:hover{border-color:var(--dm-ink)}
.u_75b2_1258{padding:9px 16px;font-size:13.5px}

/* phone mockup */
.u_632f_906e{width:270px;height:520px;margin:64px auto 0;border:1px solid var(--dm-line);border-radius:34px;position:relative;background:linear-gradient(180deg,var(--dm-soft),#fff);box-shadow:0 40px 80px -50px rgba(20,22,26,.35)}
.u_632f_906e:before{content:"";position:absolute;top:12px;left:50%;transform:translateX(-50%);width:90px;height:5px;border-radius:3px;background:var(--dm-line)}
.u_267b_64b0{position:absolute;inset:34px 20px 20px;display:flex;flex-direction:column;gap:12px}
.u_3651_ebb2{height:64px;border:1px dashed var(--dm-line);border-radius:12px}
.u_4703_7ea7{flex:1;border:1px dashed var(--dm-line);border-radius:12px;display:grid;place-items:center;font-size:44px;color:var(--dm-line);font-weight:700}

/* Sections */
.u_e7f8_b71d{padding:76px 0;border-top:1px solid var(--dm-line)}
.u_f0b8_5f84{background:var(--dm-soft)}
.u_a9e6_4db7{max-width:560px;margin-bottom:46px}
.u_608a_f0b5{font-size:12px;letter-spacing:2px;text-transform:uppercase;color:var(--dm-muted)}
.u_a9e6_4db7 h2{font-size:34px;font-weight:700;letter-spacing:-.8px;margin:10px 0 6px}
.u_a9e6_4db7 p{color:var(--dm-muted);font-size:15px}

/* Feature grid — hairline dividers */
.u_ad54_c9ca{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--dm-line);border:1px solid var(--dm-line);border-radius:14px;overflow:hidden}
.u_1fac_29be{background:#fff;padding:32px 26px}
.u_f0b8_5f84 .u_1fac_29be{background:var(--dm-soft)}
.u_f0b8_5f84 .u_1fac_29be:hover{background:#fff}
.u_c0a4_015f{font-size:20px;color:var(--dm-accent);margin-bottom:14px}
.u_1fac_29be h3{font-size:18px;font-weight:600;margin-bottom:6px}
.u_1fac_29be p{color:var(--dm-muted);font-size:14px}

/* FAQ */
.u_8a38_9bf2{max-width:720px}
.u_8a38_9bf2 details{border-bottom:1px solid var(--dm-line);padding:18px 0}
.u_8a38_9bf2 summary{cursor:pointer;font-size:16px;font-weight:500;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px}
.u_8a38_9bf2 summary::-webkit-details-marker{display:none}
.u_8a38_9bf2 summary:after{content:"+";color:var(--dm-muted);font-size:20px;line-height:1}
.u_8a38_9bf2 details[open] summary:after{content:"\2212"}
.u_8a38_9bf2 p{color:var(--dm-muted);font-size:14.5px;margin-top:10px}
.u_8a38_9bf2 p a,.u_37a2_1a12 a{color:var(--dm-accent);text-decoration:none}
.u_37a2_1a12{margin-top:24px;color:var(--dm-muted);font-size:14px}

/* News cards */
.u_3c76_f328{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.u_67f8_efce{text-decoration:none;color:inherit;display:block}
.u_a261_2efd{aspect-ratio:16/10;border:1px solid var(--dm-line);border-radius:12px;margin-bottom:14px;background:var(--dm-soft);overflow:hidden}
.u_a261_2efd img{width:100%;height:100%;object-fit:cover}
.u_67f8_efce time{font-size:12.5px;color:var(--dm-muted)}
.u_67f8_efce h3{font-size:16px;font-weight:600;margin:5px 0}
.u_67f8_efce p{font-size:14px;color:var(--dm-muted)}
.u_2e96_36a3{margin-top:34px;text-align:center}
.u_3e53_3a41{display:inline-block;border:1px solid var(--dm-ink);border-radius:999px;padding:11px 24px;font-size:14px;text-decoration:none;color:var(--dm-ink);transition:.15s}
.u_3e53_3a41:hover{background:var(--dm-ink);color:#fff}
.u_ef9e_2f0f{text-align:center;color:var(--dm-muted);padding:40px;border:1px dashed var(--dm-line);border-radius:14px;font-size:15px}

/* CTA */
.u_eae3_be1a{text-align:center;padding:20px 0}
.u_eae3_be1a h2{font-size:38px;font-weight:700;letter-spacing:-1px}
.u_eae3_be1a p{color:var(--dm-muted);margin:14px 0 28px}

/* Page hero + breadcrumb */
.u_c7e3_7d7b{padding:56px 0 30px;border-bottom:1px solid var(--dm-line)}
.u_c7e3_7d7b h1{font-size:38px;font-weight:700;letter-spacing:-.8px}
.u_c7e3_7d7b p{color:var(--dm-muted);margin-top:8px}
.u_ed38_162d{padding:16px 0;font-size:13.5px;color:var(--dm-muted)}
.u_ed38_162d a{color:var(--dm-muted);text-decoration:none}
.u_ed38_162d a:hover{color:var(--dm-ink)}
.u_5364_3076{margin:0 8px;opacity:.5}
.u_ed38_162d .u_905e_abdf{color:var(--dm-ink)}

/* List layout: main + side */
.u_797b_c7da{display:grid;grid-template-columns:1fr 280px;gap:40px;align-items:start}
.u_aec1_685a{min-width:0}
.u_c0cd_013a{display:flex;flex-direction:column;gap:22px}
.u_da3b_5fee{display:grid;grid-template-columns:200px 1fr;gap:22px;padding-bottom:22px;border-bottom:1px solid var(--dm-line)}
.u_da3b_5fee:last-child{border-bottom:none}
.u_c22f_bae5{aspect-ratio:16/10;border-radius:12px;overflow:hidden;border:1px solid var(--dm-line);background:var(--dm-soft)}
.u_c22f_bae5 img{width:100%;height:100%;object-fit:cover}
.u_bf4b_bc62 h3{font-size:19px;font-weight:600;margin-bottom:8px}
.u_bf4b_bc62 h3 a{text-decoration:none;color:var(--dm-ink)}
.u_bf4b_bc62 h3 a:hover{color:var(--dm-accent)}
.u_bf4b_bc62 p{color:var(--dm-muted);font-size:14.5px}
.u_c972_4527{margin-top:10px;font-size:12.5px;color:var(--dm-muted);display:flex;gap:16px}
.u_358f_890a{max-width:820px}

/* pagination */
.u_78e9_151d{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-top:30px;font-size:14px}
.u_78e9_151d a,.u_78e9_151d .u_905e_abdf,.u_78e9_151d .u_434a_7f2a{padding:7px 12px;border:1px solid var(--dm-line);border-radius:8px;text-decoration:none;color:var(--dm-muted)}
.u_78e9_151d a:hover{border-color:var(--dm-ink);color:var(--dm-ink)}
.u_78e9_151d .u_905e_abdf{background:var(--dm-ink);color:#fff;border-color:var(--dm-ink)}
.u_78e9_151d .u_434a_7f2a{opacity:.5}
.u_78e9_151d .u_30b8_18f9{margin-left:auto;color:var(--dm-muted);border:none}

/* sidebar */
.u_44a8_cdde{display:flex;flex-direction:column;gap:22px;position:sticky;top:84px}
.u_e5a2_4483{border:1px solid var(--dm-line);border-radius:14px;padding:22px}
.u_e5a2_4483 h4{font-size:15px;margin-bottom:14px;font-weight:600}
.u_23e2_71d0{display:flex;justify-content:space-between;font-size:13.5px;color:var(--dm-muted);padding:7px 0;border-bottom:1px dashed var(--dm-line)}
.u_23e2_71d0:last-of-type{border-bottom:none}
.u_23e2_71d0 b{color:var(--dm-ink);font-weight:600}
.u_23e2_71d0 a{color:var(--dm-accent);text-decoration:none;font-size:13px}
.u_e1c6_240a{display:block;text-align:center;margin-top:14px;background:var(--dm-ink);color:#fff;padding:11px;border-radius:10px;text-decoration:none;font-size:14px;font-weight:500}
.u_e1c6_240a:hover{background:#000}

/* detail */
.u_edbd_d759 h1{font-size:32px;font-weight:700;line-height:1.25;margin-bottom:14px}
.u_eaad_032b{display:flex;gap:18px;flex-wrap:wrap;font-size:13px;color:var(--dm-muted);padding-bottom:22px;border-bottom:1px solid var(--dm-line)}
.u_98bf_3499{padding:26px 0;font-size:16.5px}
.u_98bf_3499 h2{font-size:24px;font-weight:600;margin:26px 0 10px}
.u_98bf_3499 h3{font-size:20px;font-weight:600;margin:22px 0 8px}
.u_98bf_3499 p{margin-bottom:16px;color:#2b2e33}
.u_98bf_3499 a{color:var(--dm-accent);text-decoration:none}
.u_98bf_3499 ul,.u_98bf_3499 ol{margin:0 0 16px 22px}
.u_98bf_3499 img{border-radius:12px;margin:8px 0 16px}
.u_98bf_3499 blockquote{border-left:3px solid var(--dm-line);padding-left:18px;color:var(--dm-muted);margin:0 0 16px}
.u_9ba0_da7b{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0}
.u_9ba0_da7b a,.u_52df_161f a,.u_4681_082f a{border:1px solid var(--dm-line);border-radius:999px;padding:6px 14px;text-decoration:none;color:var(--dm-muted);font-size:13px}
.u_9ba0_da7b a:hover,.u_52df_161f a:hover{border-color:var(--dm-ink);color:var(--dm-ink)}
.u_14cb_8610{display:flex;justify-content:space-between;gap:16px;margin-top:26px;padding-top:22px;border-top:1px solid var(--dm-line);font-size:14px}
.u_14cb_8610 a{color:var(--dm-accent);text-decoration:none;max-width:46%}
.u_14cb_8610 .u_434a_7f2a{color:var(--dm-muted);opacity:.6}
.u_8e42_c35c{margin-top:40px}
.u_8e42_c35c h2{font-size:22px;font-weight:600;margin-bottom:18px}

/* tags cloud */
.u_52df_161f{display:flex;flex-wrap:wrap;gap:12px}
.u_52df_161f a{font-size:15px;padding:9px 18px}
.u_6f3e_a789{color:var(--dm-accent);margin-left:6px;font-size:12px}
.u_4681_082f{padding-bottom:20px;border-bottom:1px solid var(--dm-line);margin-bottom:8px}
.u_4681_082f h1{font-size:30px;font-weight:700}
.u_a50e_d8d8{color:var(--dm-accent);margin-right:4px}
.u_4681_082f p{color:var(--dm-muted);margin-top:8px}
.u_eb4f_1fcb{font-size:14px}
.u_a03b_43e8{margin-top:30px;text-align:center}
.u_a03b_43e8 a{color:var(--dm-accent);text-decoration:none;font-size:14px}

/* search */
.u_a3e1_c40e{display:flex;gap:0;margin-bottom:26px;border:1px solid var(--dm-line);border-radius:12px;overflow:hidden}
.u_a3e1_c40e input{flex:1;border:none;padding:14px 18px;font-size:15px;outline:none}
.u_a3e1_c40e button{border:none;background:var(--dm-ink);color:#fff;padding:0 28px;font-size:15px;cursor:pointer}
.u_a489_afaf{text-align:center;color:var(--dm-muted);margin-bottom:22px;font-size:14px}

/* 404 */
.u_3422_7342{text-align:center;padding:60px 0}
.u_7c8d_4dee{font-size:120px;font-weight:800;letter-spacing:-4px;color:var(--dm-line);line-height:1}
.u_3422_7342 p{color:var(--dm-muted);margin:12px 0 26px;font-size:16px}

/* sticky mobile download bar */
.u_db5c_b2ee{display:none}

/* Footer */
.u_1bbd_1743{border-top:1px solid var(--dm-line);padding:52px 0 34px;font-size:14px;color:var(--dm-muted)}
.u_7095_374a{display:grid;grid-template-columns:2fr 1fr 1fr;gap:32px;margin-bottom:32px}
.u_1bbd_1743 h5{color:var(--dm-ink);font-size:14px;margin-bottom:12px}
.u_1bbd_1743 ul{list-style:none}
.u_1bbd_1743 li{margin-bottom:8px}
.u_1bbd_1743 a{color:var(--dm-muted);text-decoration:none}
.u_1bbd_1743 a:hover{color:var(--dm-ink)}
.u_376b_83dd p{max-width:340px}
.u_013f_0b3c{border-top:1px solid var(--dm-line);padding-top:20px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px}
.u_ad49_7c57{text-align:right}

/* Responsive */
@media (max-width:860px){
  .u_86a5_dfea{font-size:40px}
  .u_1e03_bec9{display:none;position:absolute;top:64px;left:0;right:0;flex-direction:column;gap:0;background:#fff;border-bottom:1px solid var(--dm-line);padding:8px 32px}
  .u_1e03_bec9 a{padding:12px 0;border-bottom:1px solid var(--dm-line)}
  .u_8039_3046{display:block}
  .u_0670_0334{position:relative}
  .u_ad54_c9ca,.u_3c76_f328{grid-template-columns:1fr}
  .u_797b_c7da{grid-template-columns:1fr}
  .u_44a8_cdde{position:static}
  .u_da3b_5fee{grid-template-columns:1fr}
  .u_7095_374a{grid-template-columns:1fr;gap:24px}
  .u_e7f8_b71d{padding:52px 0}
  .u_0502_3897{padding:0 22px}
  .u_ad49_7c57{text-align:left}
}
@media (max-width:640px){
  .u_db5c_b2ee{display:flex;align-items:center;justify-content:space-between;gap:12px;position:fixed;left:0;right:0;bottom:0;z-index:30;background:rgba(255,255,255,.95);backdrop-filter:blur(8px);border-top:1px solid var(--dm-line);padding:10px 16px}
  .u_e993_e4b3{font-size:12px;color:var(--dm-muted)}
  .u_e993_e4b3 b{display:block;color:var(--dm-ink);font-size:14px}
  body{padding-bottom:66px}
  .u_4ddc_5183{padding:56px 0 40px}
  .u_dca2_399d{gap:20px}
}


/* fingerprint */
.kded5ace{position:relative}
.k2758bf7{overflow:hidden}
.k56fb2b6{text-align:left}
.k7b97e0a{box-sizing:border-box}
.ka573782{display:none}
.k78e6cc9{padding:0}
:root{--fp-52bf1045:1px}