* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body { font-family:"Microsoft YaHei","PingFang SC",sans-serif; color:#1a1a2e; line-height:1.7; }

.container { max-width:960px; margin:0 auto; padding:0 24px; }

/* Nav */
.nav { position:fixed; top:0; left:0; right:0; z-index:100; background:rgba(255,255,255,0.95); backdrop-filter:blur(10px); border-bottom:1px solid #eee; }
.nav-inner { max-width:960px; margin:0 auto; padding:16px 24px; display:flex; justify-content:space-between; align-items:center; }
.logo { font-size:20px; font-weight:700; color:#1a1a2e; text-decoration:none; letter-spacing:2px; }
.nav-links { display:flex; gap:32px; }
.nav-links a { color:#555; text-decoration:none; font-size:15px; transition:color .2s; }
.nav-links a:hover { color:#4364F7; }

/* Hero */
.hero { padding:160px 0 100px; text-align:center; background:linear-gradient(135deg, #f5f7ff 0%, #e8eeff 50%, #f0f4ff 100%); }
.hero h1 { font-size:42px; font-weight:800; letter-spacing:4px; margin-bottom:16px; background:linear-gradient(135deg, #0052D4, #4364F7, #6FB1FC); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; }
.hero-sub { font-size:18px; color:#666; max-width:520px; margin:0 auto 36px; }
.btn-hero { display:inline-block; padding:14px 48px; background:linear-gradient(135deg, #0052D4, #4364F7); color:#fff; border-radius:50px; text-decoration:none; font-size:16px; font-weight:500; transition:transform .2s,box-shadow .2s; }
.btn-hero:hover { transform:translateY(-2px); box-shadow:0 8px 24px rgba(0,82,212,.3); }

/* Sections */
section { padding:80px 0; }
.section-title { text-align:center; font-size:30px; font-weight:700; margin-bottom:48px; }
.section-title::after { content:""; display:block; width:50px; height:3px; background:linear-gradient(90deg, #0052D4, #4364F7); margin:12px auto 0; border-radius:2px; }

/* Tools */
.tools { background:#fff; }
.tool-cards { display:grid; grid-template-columns:repeat(auto-fit, minmax(280px, 1fr)); gap:24px; }
.tool-card { display:block; padding:36px 28px; border-radius:16px; border:1px solid #eee; text-decoration:none; color:inherit; transition:transform .2s,box-shadow .2s; }
.tool-card:hover { transform:translateY(-4px); box-shadow:0 12px 32px rgba(0,0,0,.08); }
.tool-card.coming-soon { opacity:0.6; cursor:default; }
.tool-card.coming-soon:hover { transform:none; box-shadow:none; }
.tool-icon { color:#4364F7; margin-bottom:20px; }
.tool-card h3 { font-size:20px; margin-bottom:8px; }
.tool-card p { font-size:14px; color:#888; margin-bottom:16px; }
.tag { display:inline-block; padding:4px 14px; border-radius:20px; font-size:12px; background:#e8f5e9; color:#2e7d32; }
.tag-coming { background:#f5f5f5; color:#999; }

/* About */
.about { background:#f9fafb; }
.about-content { max-width:700px; margin:0 auto; text-align:center; font-size:16px; color:#555; }
.about-lead { font-size:20px; font-weight:700; color:#1a1a2e; margin-bottom:24px; }
.about-content p { margin-bottom:16px; }
.highlight { color:#4364F7; font-weight:600; }

/* Contact */
.contact { text-align:center; }
.contact p { font-size:16px; color:#666; margin-bottom:24px; }
.btn-contact { display:inline-block; padding:12px 40px; border:2px solid #0052D4; color:#0052D4; border-radius:50px; text-decoration:none; font-size:15px; transition:all .2s; }
.btn-contact:hover { background:#0052D4; color:#fff; }

/* Footer */
.footer { padding:28px 0; text-align:center; border-top:1px solid #eee; }
.footer p { font-size:13px; color:#aaa; }