:root{--bg: #f4f8fb;--bg-soft: #ffffff;--ink: #123044;--muted: #4f6878;--line: #d8e3ea;--primary: #ff7745;--primary-hover: #e86532;--accent: #1e8a7e;--radius-lg: 24px;--radius-md: 14px;font-family:Avenir Next,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}html,body{margin:0;min-width:320px;background:radial-gradient(circle at 85% 12%,#d1f3ed 0%,transparent 32%),radial-gradient(circle at 8% 88%,#ffe2cc 0%,transparent 30%),var(--bg);color:var(--ink)}body{line-height:1.6}a{color:inherit;text-decoration:none}#app{min-height:100vh}.page{max-width:1100px;margin:0 auto;padding:24px}.topbar{position:sticky;top:12px;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 18px;border:1px solid var(--line);border-radius:999px;background:#ffffffd9;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.brand-mark{display:inline-block;padding:6px 12px;border-radius:999px;background:var(--ink);color:#fff;font-weight:700;letter-spacing:.04em}.nav{display:flex;gap:14px;color:var(--muted);font-weight:600}.nav a:hover{color:var(--ink)}.section{margin-top:56px}.hero{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:24px;align-items:center}.hero-copy h1{margin:8px 0 12px;font-size:clamp(2rem,4vw,3.1rem);line-height:1.05}.eyebrow{margin:0;color:var(--accent);font-weight:700;letter-spacing:.08em}.hero-desc{margin:0;max-width:56ch;color:var(--muted)}.actions,.download-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}.btn{display:inline-flex;align-items:center;justify-content:center;min-width:136px;padding:11px 16px;border-radius:10px;border:1px solid transparent;font-weight:700;transition:transform .2s ease,background-color .2s ease,color .2s ease}.btn:hover{transform:translateY(-2px)}.btn.primary{background:var(--primary);color:#fff}.btn.primary:hover{background:var(--primary-hover)}.btn.ghost{border-color:var(--line);background:var(--bg-soft)}.tip{margin-top:12px;color:var(--muted);font-size:.95rem}.hero-card{padding:22px;border-radius:var(--radius-lg);border:1px solid var(--line);background:var(--bg-soft);box-shadow:0 14px 30px #09223314}.hero-card h2{margin:0 0 12px;font-size:1.1rem}.hero-card ul{margin:0;padding:0;list-style:none;display:grid;gap:10px}.hero-card li{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;border-radius:var(--radius-md);background:#f6fafc}.intro p{margin:10px 0 0;max-width:70ch;color:var(--muted)}.feature-grid{margin-top:18px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.album-grid{margin-top:18px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.album-item{padding:18px;border:1px solid var(--line);border-radius:var(--radius-md);background:#fff}.album-item h3{margin:0;font-size:1rem}.album-meta{margin:6px 0 0;color:var(--accent);font-weight:700;font-size:.92rem}.album-item p{margin:8px 0 0;color:var(--muted);font-size:.95rem}.feature-item{padding:18px;border:1px solid var(--line);border-radius:var(--radius-md);background:#ffffffeb}.feature-item h3{margin:0;font-size:1rem}.feature-item p{margin:8px 0 0;color:var(--muted);font-size:.95rem}.download{padding:26px;border:1px solid var(--line);border-radius:var(--radius-lg);background:linear-gradient(180deg,#fff,#f6fbff)}.download p{color:var(--muted)}.footer{margin:56px 0 20px;color:var(--muted);font-size:.92rem;text-align:center}@media(max-width:960px){.hero{grid-template-columns:1fr}.album-grid,.feature-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:640px){.page{padding:16px}.topbar{padding:10px 14px}.brand-mark{font-size:.92rem}.nav{gap:10px;font-size:.92rem}.section{margin-top:40px}.download{padding:20px}.album-grid,.feature-grid{grid-template-columns:1fr}}