:root{--bg:#fff7e8;--bg2:#fffef9;--bg-card:#ffffff;--ink:#1f1814;--muted:#7a6c5f;--line:#efe0c8;--accent:#ff6b3d;--accent-2:#ffb442;--accent-3:#5b8def;--accent-4:#14b8a6;--accent-5:#ec4899;--accent-6:#8b5cf6}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:'Inter',-apple-system,'PingFang SC','Microsoft YaHei',sans-serif;line-height:1.65;overflow-x:hidden}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}code{font-family:'SF Mono','Courier New',monospace;font-size:13px;background:#fff7e8;padding:2px 8px;border-radius:6px;color:var(--accent);border:1px solid var(--line)}pre code{background:transparent;border:0;padding:0;color:inherit;display:block;font-size:13px;line-height:1.8}.c-muted{color:var(--muted)!important}.navbar{position:sticky;top:0;z-index:50;display:flex;justify-content:space-between;align-items:center;padding:18px 6vw;background:rgba(255,247,232,.85);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;letter-spacing:-.5px;color:var(--ink)}.brand img{width:34px;height:34px;object-fit:cover;border-radius:10px}.nav-links{display:flex;gap:24px;list-style:none;margin:0;padding:0;font-size:14px;font-weight:600}.nav-links a{color:var(--muted);transition:color .2s}.nav-links a:hover{color:var(--accent)}.navbar .cta{background:var(--accent);color:#fff;padding:11px 22px;border-radius:30px;font-weight:700;font-size:14px;transition:transform .2s,box-shadow .2s}.navbar .cta:hover{transform:translateY(-2px);box-shadow:0 12px 24px rgba(255,107,61,.4)}.hero{position:relative;overflow:hidden;padding:90px 6vw 100px;min-height:680px;display:flex;align-items:center}.blob{position:absolute;border-radius:50%;filter:blur(80px);opacity:.5;z-index:0;pointer-events:none}.blob-1{width:480px;height:480px;background:var(--accent-2);top:-100px;left:-150px;opacity:.35}.blob-2{width:420px;height:420px;background:var(--accent-5);bottom:-80px;right:-100px;opacity:.25}.hero-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:50px;align-items:center;position:relative;z-index:2;max-width:1280px;margin:0 auto;width:100%}.hero-compact{min-height:520px;padding-top:80px;padding-bottom:70px}.badge{display:inline-block;font-size:12px;letter-spacing:3px;font-weight:800;background:var(--ink);color:#fff;padding:6px 16px;border-radius:30px;margin-bottom:24px;text-transform:uppercase}.hero h1{font-size:clamp(42px,5.5vw,80px);font-weight:800;line-height:1.05;letter-spacing:-2.5px;margin:0 0 22px;color:var(--ink)}.hero .grad{background:linear-gradient(135deg,var(--accent),var(--accent-5));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero p{font-size:17px;color:var(--muted);max-width:520px;margin:0 0 32px;line-height:1.7}.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:36px}.btn{display:inline-flex;align-items:center;gap:10px;padding:16px 30px;font-size:15px;font-weight:700;letter-spacing:.5px;border-radius:30px;cursor:pointer;border:0;transition:transform .25s ease,box-shadow .25s ease,background .25s ease}.btn-primary{background:var(--accent);color:#fff;box-shadow:0 14px 30px rgba(255,107,61,.4)}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 38px rgba(255,107,61,.55)}.btn-outline{background:transparent;color:var(--ink);border:2px solid var(--ink)}.btn-outline:hover{background:var(--ink);color:#fff}.hero-stats{display:flex;gap:30px;flex-wrap:wrap}.hero-stats b{display:block;font-size:28px;font-weight:800;color:var(--ink);letter-spacing:-1px}.hero-stats span{font-size:13px;color:var(--muted);font-weight:600;text-transform:uppercase;letter-spacing:1px}.hero-visual{position:relative;border-radius:32px;overflow:hidden;background:var(--bg-card);box-shadow:0 30px 60px rgba(31,24,20,.18);aspect-ratio:1/1}.hero-visual img{width:100%;height:100%;object-fit:cover;display:block}.wrap{max-width:1280px;margin:0 auto;padding:0 6vw}.section-header{margin:90px 0 40px;padding-top:40px;border-top:2px dashed var(--line)}.section-header h2{font-size:clamp(36px,4.5vw,56px);font-weight:800;letter-spacing:-2px;margin:0;color:var(--ink);line-height:1.1}.section-header h2 em{font-style:italic;color:var(--accent)}.section-header .kicker{display:inline-block;font-size:12px;letter-spacing:4px;font-weight:800;color:var(--accent);text-transform:uppercase;margin-bottom:10px;background:rgba(255,107,61,.1);padding:5px 14px;border-radius:30px}.section-header .lede{font-size:16px;color:var(--muted);max-width:780px;margin:10px 0 0;line-height:1.7}.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-bottom:60px}.feat-card{background:var(--bg-card);border:1px solid var(--line);border-radius:24px;padding:30px 26px;transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease}.feat-card:hover{transform:translateY(-6px);box-shadow:0 24px 48px rgba(31,24,20,.08);border-color:var(--accent)}.feat-card h3{font-size:22px;font-weight:800;color:var(--ink);margin:20px 0 12px;letter-spacing:-.5px}.feat-card p{font-size:14px;color:var(--muted);margin:0;line-height:1.7}.feat-card .icon svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.feat-card .icon{width:54px;height:54px;border-radius:16px;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:18px}.icon-yellow{background:#fff3c4;color:#c89b00}.icon-pink{background:#ffd6e7;color:#c2185b}.icon-blue{background:#d6e4ff;color:#3b6bdb}.icon-green{background:#cef5e8;color:#0e8a73}.icon-purple{background:#e6d7ff;color:#6b3fc9}.icon-orange{background:#ffd9c4;color:#c6482a}.sticker-section{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;margin-bottom:60px}.sticker-card{border-radius:32px;overflow:hidden;aspect-ratio:4/3;background:var(--bg-card);box-shadow:0 24px 50px rgba(31,24,20,.1)}.sticker-card img{width:100%;height:100%;object-fit:cover;display:block}.sticker-info h3{font-size:30px;font-weight:800;letter-spacing:-1px;margin:0 0 24px}.sticker-info ol{list-style:none;padding:0;margin:0 0 28px}.sticker-info li{padding:14px 0;border-bottom:1px solid var(--line);font-size:14px;color:var(--muted);display:flex;gap:14px;align-items:flex-start}.sticker-info li b{color:var(--ink);font-weight:800;font-size:14px;min-width:100px;display:inline-block}.api-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-bottom:30px}.api-card{background:var(--bg-card);border:1px solid var(--line);border-radius:20px;padding:28px;position:relative;overflow:hidden;transition:transform .25s ease,box-shadow .25s ease}.api-card:hover{transform:translateY(-3px);box-shadow:0 18px 38px rgba(31,24,20,.08)}.api-card::before{content:'';position:absolute;top:-30px;right:-30px;width:120px;height:120px;border-radius:50%;background:var(--accent-2);opacity:.15;pointer-events:none}.api-card .api-tag{display:inline-block;font-family:'SF Mono','Courier New',monospace;font-size:11px;letter-spacing:2px;color:#fff;background:var(--accent);padding:4px 12px;border-radius:6px;margin-bottom:14px;font-weight:800;text-transform:uppercase}.api-card h4{margin:6px 0 12px;font-size:22px;font-weight:800;color:var(--ink);letter-spacing:-.5px}.api-card p{font-size:14px;color:var(--muted);margin:0;line-height:1.7}.api-code{background:var(--ink);color:#fffbf3;border-radius:20px;padding:30px 36px;margin-bottom:60px;overflow-x:auto;position:relative}.api-code::before{content:'// BOT SDK';position:absolute;top:14px;right:20px;font-family:'SF Mono',monospace;font-size:11px;color:var(--accent-2);letter-spacing:2px}.api-code pre{margin:0;font-size:14px;line-height:1.8;color:var(--accent-2)}.c-muted{color:var(--muted)!important}.security-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-bottom:60px}.sec-card{background:var(--bg-card);border:1px solid var(--line);border-radius:24px;padding:36px;text-align:left;transition:transform .3s ease,box-shadow .3s ease}.sec-card:hover{transform:translateY(-4px);box-shadow:0 20px 40px rgba(31,24,20,.08)}.sec-icon{font-size:36px;margin-bottom:14px}.sec-card h3{font-size:22px;font-weight:800;color:var(--ink);margin:0 0 12px;letter-spacing:-.5px}.sec-card p{font-size:14px;color:var(--muted);margin:0;line-height:1.7}.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:80px}.faq-item{background:var(--bg-card);border:1px solid var(--line);border-radius:18px;padding:24px 28px;transition:border-color .25s ease,box-shadow .25s ease}.faq-item:hover{border-color:var(--accent);box-shadow:0 12px 28px rgba(31,24,20,.05)}.faq-item summary{cursor:pointer;font-size:18px;font-weight:700;color:var(--ink);list-style:none;display:flex;justify-content:space-between;align-items:center;letter-spacing:-.5px}.faq-item summary::after{content:'+';color:var(--accent);font-size:22px;font-weight:400;transition:transform .35s ease}.faq-item[open] summary::after{transform:rotate(45deg)}.faq-item p{margin:14px 0 0;color:var(--muted);font-size:14px;line-height:1.7}.help-block{display:grid;grid-template-columns:1fr 1.4fr;gap:40px;background:linear-gradient(135deg,rgba(255,180,66,.12),rgba(255,107,61,.12));border:1px solid rgba(255,107,61,.2);border-radius:28px;padding:40px;margin-bottom:80px}.help-text h2{font-size:30px;font-weight:800;letter-spacing:-1.5px;margin:0 0 14px;color:var(--ink)}.help-text p{color:var(--muted);margin:0 0 14px}.help-list{list-style:none;padding:0;margin:0}.help-list li{padding:14px 0;border-bottom:1px solid rgba(255,107,61,.2);font-size:15px;color:var(--ink);display:flex;gap:14px;align-items:flex-start}.help-list li b{color:var(--accent);font-weight:800;font-size:14px;min-width:36px;display:inline-block}.help-list li:last-child{border-bottom:0}footer{border-top:1px solid var(--line);padding:36px 6vw;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;font-size:13px;color:var(--muted);font-weight:600}footer strong{color:var(--ink);font-size:18px;font-weight:800}footer a{color:var(--accent);font-weight:700}.float-dl{position:fixed;right:30px;bottom:30px;z-index:60;background:var(--accent);color:#fff;padding:18px 24px;border-radius:30px;font-weight:800;font-size:14px;box-shadow:0 18px 36px rgba(255,107,61,.5);display:flex;align-items:center;gap:8px;transition:transform .25s ease,box-shadow .25s ease}.float-dl:hover{transform:translateY(-3px);box-shadow:0 24px 44px rgba(255,107,61,.6)}.fade-in{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}.fade-in.is-visible{opacity:1;transform:translateY(0)}.fade-in.delay-1{transition-delay:.1s}.fade-in.delay-2{transition-delay:.2s}.fade-in.delay-3{transition-delay:.3s}.fade-in.delay-4{transition-delay:.4s}.fade-in.delay-5{transition-delay:.5s}.fade-in.delay-6{transition-delay:.6s}@media(max-width:900px){.hero-grid{grid-template-columns:1fr;gap:30px}.hero-visual{aspect-ratio:16/10}.features-grid{grid-template-columns:1fr 1fr}.api-grid,.security-grid{grid-template-columns:1fr}.sticker-section{grid-template-columns:1fr;gap:30px}.help-block{grid-template-columns:1fr;gap:24px;padding:30px}.faq-grid{grid-template-columns:1fr}.nav-links{display:none}}