:root{--brand-900: #0b1f3a;--brand-800: #10305a;--brand-700: #164a85;--brand-600: #1f63b0;--accent: #38bdf8;--accent-deep: #0ea5e9;--warm: #f59e0b;--bg: #f6f8fb;--bg-alt: #eef2f7;--card: #ffffff;--text: #15233a;--muted: #5b6b80;--border: #dde4ee;--ok: #16a34a;--radius: 14px;--shadow: 0 1px 2px rgba(11, 31, 58, .06), 0 8px 24px rgba(11, 31, 58, .06);--font: "Inter", "Segoe UI", "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;--mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;scroll-padding-top:76px;-webkit-text-size-adjust:100%}body{font-family:var(--font);color:var(--text);background:var(--bg);line-height:1.6;font-size:16px}img{max-width:100%;height:auto;display:block}a{color:var(--brand-600);text-decoration:none}a:hover{text-decoration:underline}button{font:inherit;cursor:pointer}h1,h2,h3{line-height:1.2;letter-spacing:-.01em}code{font-family:var(--mono);font-size:.92em}.container{max-width:1140px;margin:0 auto;padding:0 20px}.nav{position:sticky;top:0;z-index:40;background:#f6f8fbd9;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:border-color .2s,background .2s}.nav.scrolled{border-bottom-color:var(--border);background:#ffffffeb}.nav-inner{height:64px;display:flex;align-items:center;gap:20px}.brand{display:flex;align-items:center;text-decoration:none!important}.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text)}.logo-text{font-weight:800;font-size:19px;letter-spacing:-.02em}.logo-text b{color:var(--brand-600)}.nav nav{margin-left:auto;display:flex;align-items:center;gap:22px}.nav nav a{color:var(--muted);font-size:14.5px;font-weight:500}.nav nav a:hover{color:var(--text);text-decoration:none}.lang-btn{border:1px solid var(--border);background:#fff;border-radius:8px;padding:5px 12px;font-size:13.5px;font-weight:600;color:var(--brand-600)}.lang-btn:hover{background:var(--bg-alt)}.nav-toggle{display:none;margin-left:auto;width:40px;height:40px;border:1px solid var(--border);background:#fff;border-radius:8px;flex-direction:column;justify-content:center;align-items:center;gap:5px}.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px}.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:10px;padding:12px 22px;font-size:15px;font-weight:600;transition:transform .15s,background .15s,box-shadow .15s;text-decoration:none!important}.btn:hover{transform:translateY(-1px)}.btn-primary{background:var(--warm);color:#1a1200;box-shadow:0 6px 18px #f59e0b4d}.btn-primary:hover{background:#fbbf24}.btn-ghost{border:1.5px solid rgba(255,255,255,.6);color:#fff}.btn-ghost:hover{background:#ffffff1a}.btn-outline{border:1.5px solid var(--brand-600);color:var(--brand-600);background:#fff}.btn-outline:hover{background:#eef4fb}.hero{position:relative;color:#fff;overflow:hidden;padding:72px 0 0;background:var(--brand-900)}.hero-bg{position:absolute;inset:0;background:radial-gradient(900px 500px at 15% -10%,rgba(56,189,248,.35),transparent 60%),radial-gradient(700px 400px at 100% 20%,rgba(31,99,176,.5),transparent 60%),linear-gradient(180deg,#0b1f3a,#10305a)}.hero-bg:after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:48px 48px;-webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.8),transparent 85%);mask-image:linear-gradient(180deg,rgba(0,0,0,.8),transparent 85%)}.hero-grid{position:relative;display:flex;flex-direction:column;align-items:center;text-align:center}.badge{display:inline-block;font-size:12.5px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--accent);border:1px solid rgba(56,189,248,.4);border-radius:999px;padding:5px 12px;margin-bottom:20px;background:#38bdf814}.hero h1{max-width:900px;font-size:clamp(34px,4.4vw,54px);font-weight:800;letter-spacing:-.025em;margin-bottom:20px}.hero h1 .accent{color:var(--accent)}.hero-sub{font-size:17px;color:#ffffffd1;max-width:720px;margin:0 auto 30px}.hero-cta{display:flex;gap:12px;flex-wrap:wrap;justify-content:center}.stats{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:64px;padding-top:28px;padding-bottom:36px;border-top:1px solid rgba(255,255,255,.12)}.stat-v{font-size:30px;font-weight:800;letter-spacing:-.02em;color:var(--accent);font-variant-numeric:tabular-nums}.stat-l{font-size:13.5px;color:#ffffffb8;line-height:1.45}.section{padding:84px 0}.tone-alt{background:var(--bg-alt)}.tone-dark{background:var(--brand-900);color:#fff}.kicker{font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--brand-600);margin-bottom:10px}.tone-dark .kicker{color:var(--accent)}.section h2{font-size:clamp(27px,3vw,38px);font-weight:800;margin-bottom:14px}.lead{font-size:17px;color:var(--muted);max-width:780px;margin-bottom:40px}.tone-dark .lead{color:#ffffffc7}.section>.container>h2:last-of-type:not(:has(+.lead)){margin-bottom:36px}.note{margin-top:28px;color:var(--muted);font-size:15px;max-width:820px}.tone-dark .note{color:#ffffffb8}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.grid-2.narrow{max-width:860px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);display:flex;flex-direction:column}.card h3{font-size:17.5px;font-weight:700;margin-bottom:8px}.card p{font-size:14.5px;color:var(--muted)}.card.compact{padding:20px}.card .meta{font-size:13.5px;margin-bottom:14px}.card .btn{margin-top:auto}.checks{list-style:none;margin:0 0 22px;flex:0}.checks li{position:relative;padding:4px 0 4px 26px;font-size:14.5px}.checks li:before{content:"✓";position:absolute;left:2px;top:3px;color:var(--ok);font-weight:800}.plan.featured{border-color:var(--brand-600);box-shadow:0 0 0 3px #1f63b01f,var(--shadow)}.steps{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step}.step{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}.step-n{display:inline-flex;width:34px;height:34px;border-radius:50%;background:var(--brand-600);color:#fff;align-items:center;justify-content:center;font-weight:800;margin-bottom:14px}.step h3{font-size:17px;margin-bottom:6px}.step p{font-size:14.5px;color:var(--muted)}.finder-grid{display:grid;grid-template-columns:1.3fr .9fr;gap:28px;align-items:start}.syntax{background:var(--brand-900);color:#fff;border-radius:var(--radius);padding:24px;position:sticky;top:84px}.syntax h3{font-size:16px;margin-bottom:14px;color:var(--accent)}.syntax dl>div{display:grid;grid-template-columns:1fr;gap:2px;padding:9px 0;border-top:1px solid rgba(255,255,255,.1)}.syntax dt code{color:#fff;background:#ffffff14;padding:2px 8px;border-radius:6px;font-size:13px}.syntax dd{font-size:13px;color:#ffffffb3}.rule{background:#ffffff0d;border:1px solid rgba(255,255,255,.12);border-radius:12px;padding:20px}.rule-head{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:8px}.rule h3{font-size:15.5px}.pill{font-size:12px;font-weight:700;color:var(--brand-900);background:var(--accent);border-radius:999px;padding:2px 10px;white-space:nowrap}.rule p{font-size:13.5px;color:#ffffffb8}.specs{width:100%;border-collapse:collapse;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);font-size:15px}.specs th,.specs td{padding:13px 18px;border-bottom:1px solid var(--border);text-align:left;vertical-align:top}.specs tr:last-child th,.specs tr:last-child td{border-bottom:none}.specs th{width:200px;background:#f3f6fa;font-weight:600}.specs td{color:var(--muted)}.faq{max-width:820px}.faq-item{border-bottom:1px solid var(--border)}.faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;gap:16px;background:none;border:none;text-align:left;padding:18px 0;font-size:16.5px;font-weight:600;color:var(--text)}.faq-chev{font-size:22px;color:var(--brand-600);transition:transform .2s}.faq-item.open .faq-chev{transform:rotate(45deg)}.faq-a{padding:0 0 18px;color:var(--muted);font-size:15px;max-width:720px}.footer{border-top:1px solid var(--border);background:#fff}.footer-inner{padding:36px 20px;display:flex;justify-content:space-between;align-items:flex-end;gap:20px;color:var(--muted);font-size:14px}.footer-inner p{margin-top:10px}.footer-links{display:flex;flex-direction:column;align-items:flex-end;gap:6px}@media(max-width:1000px){.grid-3,.grid-4,.steps{grid-template-columns:repeat(2,1fr)}.finder-grid{grid-template-columns:1fr}.syntax{position:static}.hero-grid{grid-template-columns:1fr}.stats{grid-template-columns:repeat(2,1fr)}}@media(max-width:720px){.nav-toggle{display:flex}.nav nav{display:none;position:absolute;top:64px;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:#fff;border-bottom:1px solid var(--border);padding:8px 16px 16px}.nav nav.open{display:flex}.nav nav a{padding:12px 4px;border-bottom:1px solid var(--border);font-size:16px}.lang-btn{margin-top:12px;align-self:flex-start}.section{padding:60px 0}.hero{padding-top:48px}.grid-2,.grid-3,.grid-4,.steps{grid-template-columns:1fr}.stats{grid-template-columns:1fr 1fr;gap:14px;margin-top:40px}.stat-v{font-size:24px}.specs th{width:120px}.specs th,.specs td{padding:10px 12px;font-size:14px}.footer-inner{flex-direction:column;align-items:flex-start}.footer-links{align-items:flex-start}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn{transition:none}}.placeholder{margin:0;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}.placeholder-frame{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;width:100%;color:var(--muted);font-size:14px;font-weight:600;letter-spacing:.02em;background:repeating-linear-gradient(135deg,#f3f6fa 0 12px,#e9eef5 12px 24px)}.placeholder figcaption{padding:10px 14px;font-size:13.5px;color:var(--muted);border-top:1px solid var(--border)}.shots{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.shots .wide{grid-column:1 / -1}.hero-shot{width:min(100%,900px);margin-top:44px;border:1px solid rgba(255,255,255,.15);box-shadow:0 30px 80px #00000073}.hero-shot .placeholder-frame{background:repeating-linear-gradient(135deg,#10305a 0 12px,#0d2749 12px 24px);color:#ffffffb3}.syntax-shot{margin-top:18px;border-color:#ffffff26;box-shadow:none}.syntax-shot .placeholder-frame{background:repeating-linear-gradient(135deg,#10305a 0 12px,#0d2749 12px 24px);color:#ffffffb3;font-size:13px}@media(max-width:720px){.shots{grid-template-columns:1fr}}