:root{--bg:#fffaf5;--card:rgba(255,255,255,.86);--text:#172033;--muted:#667085;--line:rgba(148,163,184,.25);--orange:#f97316;--deep:#ea580c;--soft:#fff1e7;--shadow:0 24px 60px rgba(107,52,12,.11)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:320px;color:var(--text);background:radial-gradient(circle at 8% 5%,rgba(251,146,60,.19),transparent 28%),radial-gradient(circle at 92% 16%,rgba(59,130,246,.12),transparent 26%),linear-gradient(180deg,#fffaf5 0%,#f8fafc 48%,#fff 100%);font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;line-height:1.65;-webkit-font-smoothing:antialiased}a{color:inherit}button,a{-webkit-tap-highlight-color:transparent}.container{width:min(1160px,calc(100% - 40px));margin:auto}.topbar{position:sticky;top:0;z-index:50;border-bottom:1px solid rgba(255,255,255,.8);background:rgba(255,250,245,.8);backdrop-filter:blur(18px)}.topbar-inner{min-height:70px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:12px;font-size:17px;font-weight:800;text-decoration:none}.brand img{width:40px;height:40px;border-radius:12px;box-shadow:0 10px 24px rgba(249,115,22,.18)}.top-actions{display:flex;gap:10px}.top-actions a{min-height:42px;display:flex;align-items:center;padding:0 16px;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.72);color:#475467;font-size:14px;font-weight:700;text-decoration:none;transition:.2s}.top-actions a:hover{color:var(--deep);border-color:rgba(249,115,22,.35);transform:translateY(-1px)}
.hero{padding:96px 0 52px;text-align:center}.eyebrow{display:inline-flex;align-items:center;gap:8px;margin-bottom:18px;padding:7px 13px;border:1px solid rgba(249,115,22,.2);border-radius:999px;background:rgba(255,255,255,.78);color:var(--deep);font-size:13px;font-weight:800;box-shadow:0 10px 30px rgba(249,115,22,.08)}.eyebrow:before{width:8px;height:8px;content:"";border-radius:50%;background:var(--orange);box-shadow:0 0 0 5px rgba(249,115,22,.12)}h1{max-width:860px;margin:0 auto;font-size:clamp(40px,7vw,72px);line-height:1.08;letter-spacing:-.05em}h1 span{color:transparent;background:linear-gradient(100deg,#f97316 5%,#ef4444 48%,#7c3aed 100%);background-clip:text;-webkit-background-clip:text}.hero>p{max-width:700px;margin:24px auto 0;color:var(--muted);font-size:18px}.hero-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-top:32px}.button,.download-button{min-height:48px;display:inline-flex;align-items:center;justify-content:center;padding:0 20px;border-radius:14px;font-size:15px;font-weight:800;text-decoration:none;transition:.2s}.primary,.download-button{color:#fff;background:linear-gradient(135deg,var(--orange),var(--deep));box-shadow:0 14px 30px rgba(234,88,12,.23)}.primary:hover,.download-button:hover{transform:translateY(-2px);box-shadow:0 18px 36px rgba(234,88,12,.29)}.secondary{border:1px solid var(--line);background:rgba(255,255,255,.78);color:#344054}.secondary:hover{color:var(--deep);border-color:rgba(249,115,22,.32);transform:translateY(-2px)}
.section{padding:54px 0}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:26px}.section-heading>p{max-width:470px;margin:0;color:var(--muted);font-size:15px}.kicker{margin:0 0 8px;color:var(--deep);font-size:13px;font-weight:800;letter-spacing:.1em;text-transform:uppercase}h2{margin:0;font-size:clamp(28px,4vw,42px);line-height:1.2;letter-spacing:-.035em}.download-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.download-card{position:relative;min-height:330px;display:flex;flex-direction:column;align-items:center;text-align:center;padding:26px;border:1px solid var(--line);border-radius:28px;background:var(--card);box-shadow:0 16px 45px rgba(71,84,103,.08);backdrop-filter:blur(18px);transition:.25s}.download-card:hover{border-color:rgba(249,115,22,.28);transform:translateY(-5px);box-shadow:var(--shadow)}.download-card.recommended{border-color:rgba(249,115,22,.52);box-shadow:0 20px 55px rgba(249,115,22,.15)}.recommend-badge{position:absolute;top:18px;right:18px;display:none;padding:5px 10px;border-radius:999px;color:#9a3412;background:#ffedd5;font-size:12px;font-weight:800}.recommended .recommend-badge{display:block}.platform-icon{width:64px;height:64px;display:grid;place-items:center;margin-bottom:22px;border:1px solid #e1ebfa;border-radius:18px;background:#f1f6fd;color:#2563eb;font-size:30px;line-height:1;box-shadow:inset 0 1px 2px rgba(37,99,235,.05)}.download-card h3{margin:0;font-size:23px}.download-card>p{margin:8px 0 0;color:var(--muted);font-size:14px}.tags{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin:18px 0 24px}.tags span{padding:5px 9px;border-radius:8px;background:#f2f4f7;color:#475467;font-size:12px;font-weight:700}.download-button{width:100%;margin-top:auto}.tip{margin-top:22px;padding:18px 20px;border:1px solid rgba(37,99,235,.14);border-radius:18px;background:rgba(239,246,255,.76);color:#344054;font-size:14px}.tip strong{color:#1d4ed8}
.tutorial-layout{display:grid;grid-template-columns:260px minmax(0,1fr);align-items:start;gap:28px}.tutorial-nav{position:sticky;top:96px;padding:22px;border:1px solid var(--line);border-radius:20px;background:rgba(255,255,255,.8);box-shadow:0 16px 40px rgba(71,84,103,.07);backdrop-filter:blur(16px)}.tutorial-nav strong{display:block;margin-bottom:14px;font-size:14px}.tutorial-nav a{display:flex;align-items:center;gap:10px;padding:10px 11px;border-radius:10px;color:#667085;font-size:13px;font-weight:700;text-decoration:none;transition:.2s}.tutorial-nav a:hover{color:var(--deep);background:var(--soft)}.tutorial-nav b{width:24px;height:24px;display:grid;place-items:center;border-radius:8px;background:#f2f4f7;color:#475467;font-size:12px}.tutorial-list{display:grid;gap:22px}.tutorial-step{scroll-margin-top:92px;overflow:hidden;border:1px solid var(--line);border-radius:28px;background:#fff;box-shadow:0 18px 50px rgba(71,84,103,.08)}.step-copy{display:flex;align-items:flex-start;gap:16px;padding:24px 26px 20px}.step-copy>b{width:42px;height:42px;display:grid;place-items:center;flex:0 0 auto;border-radius:14px;color:#fff;background:linear-gradient(135deg,#fb923c,var(--deep));box-shadow:0 10px 22px rgba(234,88,12,.2)}.step-copy h3{margin:1px 0 5px;font-size:20px}.step-copy p{margin:0;color:var(--muted);font-size:15px}.tutorial-image{position:relative;width:100%;display:block;padding:0;overflow:hidden;border:0;border-top:1px solid var(--line);background:#f8fafc;cursor:zoom-in}.tutorial-image img{width:100%;max-height:680px;display:block;object-fit:contain;background:#f8fafc;transition:.3s}.tutorial-image:hover img{transform:scale(1.01)}.tutorial-image span{position:absolute;right:16px;bottom:16px;padding:7px 11px;border-radius:999px;color:#fff;background:rgba(15,23,42,.72);font-size:12px;font-weight:700}.tutorial-image em{min-height:180px;display:none;align-items:center;justify-content:center;padding:24px;color:#667085;font-style:normal}.tutorial-image.failed em{display:flex}.tutorial-image.failed span,.tutorial-image.failed img{display:none}.other-guides,.notice-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:28px}.other-guides article,.notice-grid article{padding:24px;border:1px dashed rgba(148,163,184,.55);border-radius:20px;background:rgba(255,255,255,.64)}.other-guides h3{margin:0 0 8px;font-size:18px}.other-guides p,.notice-grid p{margin:0;color:var(--muted);font-size:14px}.notice-grid{grid-template-columns:repeat(3,1fr);margin-top:0}.notice-grid article{border-style:solid}.notice-grid strong{display:block;margin-bottom:7px;font-size:15px}footer{padding:44px 20px 56px;color:#98a2b3;text-align:center;font-size:13px}
.lightbox{position:fixed;inset:0;z-index:100;display:none;align-items:center;justify-content:center;padding:24px;background:rgba(15,23,42,.88);backdrop-filter:blur(10px)}.lightbox.open{display:flex}.lightbox img{max-width:min(1400px,96vw);max-height:90vh;border-radius:16px;background:#fff;box-shadow:0 30px 90px rgba(0,0,0,.42)}.lightbox button{position:fixed;top:22px;right:24px;width:44px;height:44px;border:1px solid rgba(255,255,255,.22);border-radius:50%;color:#fff;background:rgba(255,255,255,.12);font-size:26px;cursor:pointer}
@media(max-width:900px){.download-grid,.notice-grid{grid-template-columns:1fr}.download-card{min-height:0}.tutorial-layout{grid-template-columns:1fr}.tutorial-nav{position:static;display:flex;gap:8px;overflow-x:auto;padding:12px}.tutorial-nav strong{display:none}.tutorial-nav a{flex:0 0 auto;white-space:nowrap}}
@media(max-width:680px){.container{width:min(100% - 28px,1160px)}.topbar-inner{min-height:62px}.brand span,.top-actions a:first-child{display:none}.top-actions a{padding:0 12px;font-size:13px}.hero{padding:68px 0 34px}h1{font-size:clamp(38px,13vw,54px)}.hero>p{font-size:16px}.section{padding:42px 0}.section-heading{display:block}.section-heading>p{margin-top:12px}.download-card{padding:22px;border-radius:22px}.step-copy{padding:20px 18px 17px}.step-copy>b{width:38px;height:38px}.step-copy h3{font-size:18px}.tutorial-step{border-radius:20px}.other-guides{grid-template-columns:1fr}.tutorial-image span{display:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition-duration:.01ms!important}}


/* mobile-layout-fix-20260803 */
@media(max-width:680px){
  .topbar-inner{gap:10px}
  .brand{min-width:0;gap:9px}
  .brand img{width:38px;height:38px}
  .brand span{display:inline;font-size:14px;white-space:nowrap}
  .top-actions{margin-left:auto;gap:8px}
  .top-actions a{min-height:40px;padding:0 13px;font-size:13px}
  .hero{padding:50px 0 24px}
  .eyebrow{margin-bottom:16px;padding:6px 12px}
  h1{max-width:350px;font-size:clamp(34px,10.8vw,44px);line-height:1.12;letter-spacing:-.045em}
  .hero>p{max-width:350px;margin-top:20px;font-size:15px;line-height:1.75}
  .section{padding:34px 0}
  .section-heading{margin-bottom:20px}
  .section-heading>p{margin-top:10px;font-size:14px;line-height:1.65}
  h2{font-size:30px}
  .download-grid{gap:14px}
  .download-card{padding:20px;border-radius:20px}
  .platform-icon{width:56px;height:56px;margin-bottom:18px;border-radius:16px;font-size:27px}
  .download-card h3{font-size:22px}
  .download-card>p{margin-top:6px}
  .tags{margin:14px 0 20px}
  .download-button{min-height:46px}
  .tip{margin-top:16px;padding:15px 16px;border-radius:16px;line-height:1.65}
  .tutorial-layout{gap:16px}
  .tutorial-nav{padding:10px;border-radius:16px}
  .tutorial-nav a{padding:8px 9px}
  .tutorial-list{gap:16px}
  .step-copy{gap:13px;padding:18px 16px 15px}
  .step-copy>b{width:36px;height:36px;border-radius:11px}
  .step-copy h3{font-size:17px;line-height:1.4}
  .step-copy p{font-size:14px;line-height:1.65}
  .tutorial-image img{max-height:none}
  .notice-grid article{padding:19px}
  .lightbox{padding:12px}
  .lightbox img{max-width:100%;border-radius:10px}
  .lightbox button{top:12px;right:12px}
}
@media(max-width:380px){
  .container{width:calc(100% - 22px)}
  h1{font-size:34px}
  .top-actions a{padding:0 11px}
}