:root {
  color-scheme: dark;
  --outer: #07050c;
  --bg: #0e0b16;
  --panel: #16121f;
  --raised: #1d1829;
  --ink: #ece8f6;
  --sub: #b8b0cc;
  --line: #2a2339;
  --pink: #ff4fd8;
  --purple: #a855f7;
  --cyan: #22d3ee;
  --gradient: linear-gradient(90deg, var(--pink), var(--purple) 52%, var(--cyan));
  --inset: clamp(1.1rem, 4vw, 2.75rem);
  font-family: "Segoe UI", "Microsoft YaHei", system-ui, sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; color: var(--ink); background: var(--outer); line-height: 1.7; }
a { color: inherit; text-decoration: none; }
a:focus-visible { outline: 2px solid var(--cyan); outline-offset: 4px; }
p, ul, ol, figure, h1, h2, h3 { margin: 0; }
strong { color: var(--ink); }
.site {
  max-width: 1180px; margin: clamp(0px, 2vw, 28px) auto; background: var(--bg);
  border: 1px solid var(--line); border-radius: 22px; overflow: clip;
}
.site-top, footer {
  display: flex; align-items: center; gap: 26px; padding: 16px var(--inset);
}
.site-top { border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.logo, nav, .tools, .greeting { display: flex; align-items: center; }
.logo { gap: 10px; font-size: 20px; font-weight: 800; }
.wordmark {
  color: var(--purple); background: var(--gradient); background-clip: text;
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
nav { gap: clamp(14px, 2.2vw, 26px); font-size: 14px; color: var(--sub); }
nav a:hover { color: var(--purple); text-decoration: underline; text-underline-offset: 4px; }
.tools { margin-inline-start: auto; gap: 12px; font-size: 14px; }
.primary {
  padding: 7px 16px; border-radius: 10px; color: #fff; font-weight: 650;
  background: linear-gradient(120deg, #7334ae, #ae207d); box-shadow: 0 5px 18px #a855f733;
}
.primary:hover { filter: brightness(1.1); }
.hero {
  display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  align-items: center; gap: clamp(20px, 3vw, 40px); padding: clamp(28px, 5vw, 56px) var(--inset);
  background: radial-gradient(ellipse at 95% 8%, #ff4fd82e, transparent 50%),
    radial-gradient(ellipse at 0% 100%, #22d3ee18, transparent 54%), var(--bg);
}
h1 {
  display: flex; align-items: center; flex-wrap: wrap; gap: 0 14px;
  font-size: clamp(2rem, 3.9vw, 2.875rem); letter-spacing: -.025em; line-height: 1.3;
}
.greeting { gap: 14px; }
.avatar {
  flex: none; object-fit: cover; border-radius: 50%; border: 2px solid transparent;
  background: linear-gradient(var(--bg), var(--bg)) padding-box, var(--gradient) border-box;
  box-shadow: 0 0 24px #a855f745;
}
.hero p { margin-top: 14px; color: var(--sub); }
.hero .notice {
  display: inline-block; border-radius: 20px; padding: 6px 12px; font-size: 13px;
  background: #302616; color: #fbbf24;
}
.studio {
  border: 1px solid var(--line); border-radius: 22px; overflow: hidden;
  box-shadow: 0 18px 48px #a855f730; height: clamp(240px, 33vw, 380px);
}
.studio img { width: 100%; height: 100%; display: block; object-fit: cover; object-position: 60% 34%; }
.section { padding: clamp(26px, 4vw, 44px) var(--inset); border-top: 1px solid var(--line); }
.section:nth-child(even) { background: var(--panel); }
h2 { margin-bottom: 16px; font-size: 24px; letter-spacing: -.02em; line-height: 1.4; }
h2::before {
  content: ""; display: inline-block; width: 6px; height: 20px; margin-right: 10px; vertical-align: -2px;
  border-radius: 4px; background: linear-gradient(var(--pink), var(--cyan));
}
h3 { font-size: 17px; line-height: 1.5; }
.section p, .card ul, .guides ol, .guides ul { color: var(--sub); font-size: 15px; line-height: 1.85; }
.section p + p, .pills + p, p + .pills { margin-top: 12px; }
.pills { display: flex; flex-wrap: wrap; gap: 10px; list-style: none; padding: 0; }
.pills li {
  border: 1px solid var(--line); background: var(--raised); border-radius: 30px;
  padding: 5px 15px; font-size: 13px; font-weight: 600;
}
.requirements, .guides { display: grid; gap: 18px; }
.requirements { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card { padding: 20px; background: var(--raised); border: 1px solid var(--line); border-radius: 16px; }
.card h3 { margin-bottom: 8px; }
.card ul, .guides ul, .guides ol { padding-inline-start: 1.5em; }
.guides { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; }
.guide-head {
  display: flex; align-items: center; justify-content: center; gap: 14px; min-height: 120px; margin-bottom: 14px;
  background: linear-gradient(135deg, var(--raised), #2a1440 62%, #0b2a33);
  border: 1px solid var(--line); border-radius: 16px;
}
.guide-head svg { width: 36px; height: 36px; color: var(--purple); }
.guides li + li { margin-top: 6px; }
.guides ol li::marker { color: var(--purple); font-weight: 650; }
.future { margin-bottom: 8px; }
.author { display: flex; align-items: center; gap: 24px; }
.author h2 { margin-bottom: 8px; }
footer { justify-content: space-between; flex-wrap: wrap; gap: 6px 24px; border-top: 1px solid var(--line); color: var(--sub); font-size: 12px; }
@media (max-width: 800px) {
  .site { margin: 0; border-radius: 0; }
  .site-top { gap: 12px 24px; }
  .requirements { grid-template-columns: 1fr; }
  .hero { grid-template-columns: 1fr; }
  .studio { height: clamp(190px, 54vw, 340px); }
}
@media (max-width: 650px) {
  nav { order: 1; flex-basis: 100%; }
  .tools { gap: 8px; }
  .guides { grid-template-columns: 1fr; }
  .author { gap: 16px; }
  .author img { width: 72px; height: 72px; }
  .greeting img { width: 46px; height: 46px; }
}
@media (max-width: 420px) {
  .site-top { gap: 10px; }
  .logo { font-size: 16px; gap: 6px; }
  .logo img { width: 28px; height: 28px; }
  .tools { font-size: 12px; }
  .primary { padding: 7px 10px; }
  .author { align-items: flex-start; }
}