/* 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_f734_c77a{max-width:1040px;margin:0 auto;padding:0 32px}
.u_886e_c844{max-width:760px}

/* Header */
.u_1dd3_843b{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_8ea1_7384{display:flex;align-items:center;justify-content:space-between;height:64px;gap:20px}
.u_686e_0e21{display:flex;align-items:center;gap:10px;font-weight:600;font-size:16px;text-decoration:none}
.u_b8f5_0ffe{width:26px;height:26px;border:1.5px solid var(--dm-ink);border-radius:7px;display:grid;place-items:center;font-size:12px}
.u_61c6_0c17{display:flex;gap:28px;font-size:14px;color:var(--dm-muted)}
.u_61c6_0c17 a{color:inherit;text-decoration:none;transition:color .15s}
.u_61c6_0c17 a:hover{color:var(--dm-ink)}
.u_0778_5ec0{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_0778_5ec0:hover{background:var(--dm-ink);color:#fff}
.u_bf82_7fae{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_1b7d_1bee{padding:84px 0 64px;text-align:center}
.u_f9c4_eb36{font-size:12px;letter-spacing:2px;text-transform:uppercase;color:var(--dm-accent);margin-bottom:20px}
.u_b707_6616{font-size:56px;line-height:1.08;font-weight:700;letter-spacing:-1.5px;max-width:800px;margin:0 auto}
.u_b707_6616 em{font-style:normal;color:var(--dm-accent)}
.u_4c83_061c{font-size:18px;color:var(--dm-muted);max-width:540px;margin:24px auto 0}
.u_5c51_8c0a{display:flex;gap:34px;justify-content:center;margin:36px 0 32px;font-size:13px;color:var(--dm-muted);flex-wrap:wrap}
.u_5c51_8c0a div{min-width:80px}
.u_5c51_8c0a b{display:block;color:var(--dm-ink);font-size:19px;font-weight:600;margin-bottom:2px}
.u_4b45_6c30{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.u_063f_279b{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_063f_279b small{display:block;font-size:11px;font-weight:400;opacity:.6}
.u_063f_279b.solid{background:var(--dm-ink);color:#fff}
.u_063f_279b.solid:hover{background:#000}
.u_063f_279b.line{background:#fff;color:var(--dm-ink);border:1px solid var(--dm-line)}
.u_063f_279b.line:hover{border-color:var(--dm-ink)}
.u_60e7_8a42{padding:9px 16px;font-size:13.5px}

/* phone mockup */
.u_1f80_040d{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_1f80_040d:before{content:"";position:absolute;top:12px;left:50%;transform:translateX(-50%);width:90px;height:5px;border-radius:3px;background:var(--dm-line)}
.u_842f_d8ea{position:absolute;inset:34px 20px 20px;display:flex;flex-direction:column;gap:12px}
.u_7f42_80e3{height:64px;border:1px dashed var(--dm-line);border-radius:12px}
.u_b4db_f3f6{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_9738_1553{padding:76px 0;border-top:1px solid var(--dm-line)}
.u_5f73_a878{background:var(--dm-soft)}
.u_7e67_6881{max-width:560px;margin-bottom:46px}
.u_d9c3_42f5{font-size:12px;letter-spacing:2px;text-transform:uppercase;color:var(--dm-muted)}
.u_7e67_6881 h2{font-size:34px;font-weight:700;letter-spacing:-.8px;margin:10px 0 6px}
.u_7e67_6881 p{color:var(--dm-muted);font-size:15px}

/* Feature grid — hairline dividers */
.u_9e26_9fd3{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_1559_9e8c{background:#fff;padding:32px 26px}
.u_5f73_a878 .u_1559_9e8c{background:var(--dm-soft)}
.u_5f73_a878 .u_1559_9e8c:hover{background:#fff}
.u_f728_2905{font-size:20px;color:var(--dm-accent);margin-bottom:14px}
.u_1559_9e8c h3{font-size:18px;font-weight:600;margin-bottom:6px}
.u_1559_9e8c p{color:var(--dm-muted);font-size:14px}

/* FAQ */
.u_a5d4_aa72{max-width:720px}
.u_a5d4_aa72 details{border-bottom:1px solid var(--dm-line);padding:18px 0}
.u_a5d4_aa72 summary{cursor:pointer;font-size:16px;font-weight:500;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px}
.u_a5d4_aa72 summary::-webkit-details-marker{display:none}
.u_a5d4_aa72 summary:after{content:"+";color:var(--dm-muted);font-size:20px;line-height:1}
.u_a5d4_aa72 details[open] summary:after{content:"\2212"}
.u_a5d4_aa72 p{color:var(--dm-muted);font-size:14.5px;margin-top:10px}
.u_a5d4_aa72 p a,.u_6432_f51a a{color:var(--dm-accent);text-decoration:none}
.u_6432_f51a{margin-top:24px;color:var(--dm-muted);font-size:14px}

/* News cards */
.u_ac15_240c{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.u_fc42_faf9{text-decoration:none;color:inherit;display:block}
.u_0838_2149{aspect-ratio:16/10;border:1px solid var(--dm-line);border-radius:12px;margin-bottom:14px;background:var(--dm-soft);overflow:hidden}
.u_0838_2149 img{width:100%;height:100%;object-fit:cover}
.u_fc42_faf9 time{font-size:12.5px;color:var(--dm-muted)}
.u_fc42_faf9 h3{font-size:16px;font-weight:600;margin:5px 0}
.u_fc42_faf9 p{font-size:14px;color:var(--dm-muted)}
.u_5d2f_0ef6{margin-top:34px;text-align:center}
.u_b4d7_ce4a{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_b4d7_ce4a:hover{background:var(--dm-ink);color:#fff}
.u_5def_687a{text-align:center;color:var(--dm-muted);padding:40px;border:1px dashed var(--dm-line);border-radius:14px;font-size:15px}

/* CTA */
.u_6822_eeba{text-align:center;padding:20px 0}
.u_6822_eeba h2{font-size:38px;font-weight:700;letter-spacing:-1px}
.u_6822_eeba p{color:var(--dm-muted);margin:14px 0 28px}

/* Page hero + breadcrumb */
.u_f67a_7657{padding:56px 0 30px;border-bottom:1px solid var(--dm-line)}
.u_f67a_7657 h1{font-size:38px;font-weight:700;letter-spacing:-.8px}
.u_f67a_7657 p{color:var(--dm-muted);margin-top:8px}
.u_9495_5d48{padding:16px 0;font-size:13.5px;color:var(--dm-muted)}
.u_9495_5d48 a{color:var(--dm-muted);text-decoration:none}
.u_9495_5d48 a:hover{color:var(--dm-ink)}
.u_6076_8060{margin:0 8px;opacity:.5}
.u_9495_5d48 .u_53ff_c2de{color:var(--dm-ink)}

/* List layout: main + side */
.u_694e_8749{display:grid;grid-template-columns:1fr 280px;gap:40px;align-items:start}
.u_b81a_6830{min-width:0}
.u_8548_6b77{display:flex;flex-direction:column;gap:22px}
.u_cd95_6337{display:grid;grid-template-columns:200px 1fr;gap:22px;padding-bottom:22px;border-bottom:1px solid var(--dm-line)}
.u_cd95_6337:last-child{border-bottom:none}
.u_d83c_58a0{aspect-ratio:16/10;border-radius:12px;overflow:hidden;border:1px solid var(--dm-line);background:var(--dm-soft)}
.u_d83c_58a0 img{width:100%;height:100%;object-fit:cover}
.u_a697_efae h3{font-size:19px;font-weight:600;margin-bottom:8px}
.u_a697_efae h3 a{text-decoration:none;color:var(--dm-ink)}
.u_a697_efae h3 a:hover{color:var(--dm-accent)}
.u_a697_efae p{color:var(--dm-muted);font-size:14.5px}
.u_7993_529f{margin-top:10px;font-size:12.5px;color:var(--dm-muted);display:flex;gap:16px}
.u_a9ea_c63a{max-width:820px}

/* pagination */
.u_830d_7df1{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-top:30px;font-size:14px}
.u_830d_7df1 a,.u_830d_7df1 .u_53ff_c2de,.u_830d_7df1 .u_368d_88b8{padding:7px 12px;border:1px solid var(--dm-line);border-radius:8px;text-decoration:none;color:var(--dm-muted)}
.u_830d_7df1 a:hover{border-color:var(--dm-ink);color:var(--dm-ink)}
.u_830d_7df1 .u_53ff_c2de{background:var(--dm-ink);color:#fff;border-color:var(--dm-ink)}
.u_830d_7df1 .u_368d_88b8{opacity:.5}
.u_830d_7df1 .u_a245_631e{margin-left:auto;color:var(--dm-muted);border:none}

/* sidebar */
.u_a79e_cedb{display:flex;flex-direction:column;gap:22px;position:sticky;top:84px}
.u_3af2_6e55{border:1px solid var(--dm-line);border-radius:14px;padding:22px}
.u_3af2_6e55 h4{font-size:15px;margin-bottom:14px;font-weight:600}
.u_5df4_d21e{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_5df4_d21e:last-of-type{border-bottom:none}
.u_5df4_d21e b{color:var(--dm-ink);font-weight:600}
.u_5df4_d21e a{color:var(--dm-accent);text-decoration:none;font-size:13px}
.u_2c70_8fe2{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_2c70_8fe2:hover{background:#000}

/* detail */
.u_9421_a9d0 h1{font-size:32px;font-weight:700;line-height:1.25;margin-bottom:14px}
.u_9175_5457{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_8804_15e7{padding:26px 0;font-size:16.5px}
.u_8804_15e7 h2{font-size:24px;font-weight:600;margin:26px 0 10px}
.u_8804_15e7 h3{font-size:20px;font-weight:600;margin:22px 0 8px}
.u_8804_15e7 p{margin-bottom:16px;color:#2b2e33}
.u_8804_15e7 a{color:var(--dm-accent);text-decoration:none}
.u_8804_15e7 ul,.u_8804_15e7 ol{margin:0 0 16px 22px}
.u_8804_15e7 img{border-radius:12px;margin:8px 0 16px}
.u_8804_15e7 blockquote{border-left:3px solid var(--dm-line);padding-left:18px;color:var(--dm-muted);margin:0 0 16px}
.u_4914_8669{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0}
.u_4914_8669 a,.u_c3d9_6c42 a,.u_53db_5e21 a{border:1px solid var(--dm-line);border-radius:999px;padding:6px 14px;text-decoration:none;color:var(--dm-muted);font-size:13px}
.u_4914_8669 a:hover,.u_c3d9_6c42 a:hover{border-color:var(--dm-ink);color:var(--dm-ink)}
.u_3ca5_45a1{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_3ca5_45a1 a{color:var(--dm-accent);text-decoration:none;max-width:46%}
.u_3ca5_45a1 .u_368d_88b8{color:var(--dm-muted);opacity:.6}
.u_ead9_5d2d{margin-top:40px}
.u_ead9_5d2d h2{font-size:22px;font-weight:600;margin-bottom:18px}

/* tags cloud */
.u_c3d9_6c42{display:flex;flex-wrap:wrap;gap:12px}
.u_c3d9_6c42 a{font-size:15px;padding:9px 18px}
.u_0e90_1b6f{color:var(--dm-accent);margin-left:6px;font-size:12px}
.u_53db_5e21{padding-bottom:20px;border-bottom:1px solid var(--dm-line);margin-bottom:8px}
.u_53db_5e21 h1{font-size:30px;font-weight:700}
.u_59ae_d083{color:var(--dm-accent);margin-right:4px}
.u_53db_5e21 p{color:var(--dm-muted);margin-top:8px}
.u_6fa1_8aa5{font-size:14px}
.u_9015_f0be{margin-top:30px;text-align:center}
.u_9015_f0be a{color:var(--dm-accent);text-decoration:none;font-size:14px}

/* search */
.u_2292_c72c{display:flex;gap:0;margin-bottom:26px;border:1px solid var(--dm-line);border-radius:12px;overflow:hidden}
.u_2292_c72c input{flex:1;border:none;padding:14px 18px;font-size:15px;outline:none}
.u_2292_c72c button{border:none;background:var(--dm-ink);color:#fff;padding:0 28px;font-size:15px;cursor:pointer}
.u_a7ae_d155{text-align:center;color:var(--dm-muted);margin-bottom:22px;font-size:14px}

/* 404 */
.u_7008_6a73{text-align:center;padding:60px 0}
.u_96e8_421b{font-size:120px;font-weight:800;letter-spacing:-4px;color:var(--dm-line);line-height:1}
.u_7008_6a73 p{color:var(--dm-muted);margin:12px 0 26px;font-size:16px}

/* sticky mobile download bar */
.u_cfbd_23aa{display:none}

/* Footer */
.u_1323_828d{border-top:1px solid var(--dm-line);padding:52px 0 34px;font-size:14px;color:var(--dm-muted)}
.u_be3b_d398{display:grid;grid-template-columns:2fr 1fr 1fr;gap:32px;margin-bottom:32px}
.u_1323_828d h5{color:var(--dm-ink);font-size:14px;margin-bottom:12px}
.u_1323_828d ul{list-style:none}
.u_1323_828d li{margin-bottom:8px}
.u_1323_828d a{color:var(--dm-muted);text-decoration:none}
.u_1323_828d a:hover{color:var(--dm-ink)}
.u_dd4a_1a33 p{max-width:340px}
.u_9276_353a{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_a007_9f77{text-align:right}

/* Responsive */
@media (max-width:860px){
  .u_b707_6616{font-size:40px}
  .u_61c6_0c17{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_61c6_0c17 a{padding:12px 0;border-bottom:1px solid var(--dm-line)}
  .u_bf82_7fae{display:block}
  .u_8ea1_7384{position:relative}
  .u_9e26_9fd3,.u_ac15_240c{grid-template-columns:1fr}
  .u_694e_8749{grid-template-columns:1fr}
  .u_a79e_cedb{position:static}
  .u_cd95_6337{grid-template-columns:1fr}
  .u_be3b_d398{grid-template-columns:1fr;gap:24px}
  .u_9738_1553{padding:52px 0}
  .u_f734_c77a{padding:0 22px}
  .u_a007_9f77{text-align:left}
}
@media (max-width:640px){
  .u_cfbd_23aa{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_32c1_362a{font-size:12px;color:var(--dm-muted)}
  .u_32c1_362a b{display:block;color:var(--dm-ink);font-size:14px}
  body{padding-bottom:66px}
  .u_1b7d_1bee{padding:56px 0 40px}
  .u_5c51_8c0a{gap:20px}
}


/* fingerprint */
.kb86dc25{width:100%}
.k28fb72e{padding:0}
.k8887734{display:none}
.k0b7b142{margin:0}
:root{--fp-1d668932:1px}