/* 从用户中心抽取的真实变量 */
:root,:root[data-theme=dark]{
  color-scheme:dark;
  --bg:#302a39;
  --surface:rgba(37,32,49,.38);
  --surface-2:rgba(255,255,255,.065);
  --text:#fff;
  --muted:rgba(255,255,255,.73);
  --line:rgba(255,255,255,.17);
  --line-hi:rgba(255,255,255,.34);
  --accent:#fff;
  --accent-ink:#282333;
  --glass:rgba(37,32,49,.38);
  --glass-2:rgba(32,29,43,.45);
  --green:#a9ecc7;--red:#ffb5bb;--amber:#ffe0ab;--blue:#bfd8ff;
  --r:28px;
  --shadow:0 18px 70px rgba(16,12,24,.18),inset 0 1px 0 rgba(255,255,255,.1);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
:root[data-theme=light]{
  color-scheme:light;
  --bg:#ded8e5;--surface:rgba(250,248,255,.72);--surface-2:rgba(255,255,255,.3);
  --text:#292333;--muted:#635a71;--line:rgba(64,47,83,.17);--line-hi:rgba(64,47,83,.32);
  --accent:#332640;--accent-ink:#fff;--glass:rgba(250,248,255,.72);--glass-2:rgba(245,241,252,.78);
  --green:#216245;--red:#a83145;--amber:#7e511a;--blue:#355fa0;
  --shadow:0 18px 70px rgba(16,12,24,.09),inset 0 1px 0 rgba(255,255,255,.55);
}

*{box-sizing:border-box}
html{background:var(--bg);min-height:100%;scroll-padding-top:90px;scroll-behavior:smooth}
body{
  margin:0;background:transparent;color:var(--text);
  font:14px/1.65 var(--font);
  isolation:isolate;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
body::before{
  content:"";position:fixed;z-index:-2;inset:0;
  background:var(--console-background) center 42%/cover no-repeat;pointer-events:none;
}
body::after{
  content:"";position:fixed;z-index:-1;inset:0;
  background:linear-gradient(115deg,rgba(21,19,32,.74),rgba(36,28,45,.47) 60%,rgba(35,26,39,.32));
  pointer-events:none;
}
:root[data-theme=light] body::after{
  background:linear-gradient(115deg,rgba(239,232,247,.66),rgba(231,219,239,.44) 60%,rgba(255,243,250,.3));
}

/* ============ 通用组件（对齐用户中心） ============ */
.glass{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r);
  box-shadow:var(--shadow);
  -webkit-backdrop-filter:blur(28px) saturate(110%);
  backdrop-filter:blur(28px) saturate(110%);
}
.eyebrow{
  display:block;margin:0 0 10px;
  font-size:10px;letter-spacing:.14em;
  color:var(--muted);text-transform:uppercase;font-weight:450;
}
h1{margin:0 0 12px;font-size:26px;line-height:1.3;font-weight:600;letter-spacing:-.02em}
h2{margin:0;font-size:16px;font-weight:550;letter-spacing:-.01em}
h3{margin:0;font-size:14px;font-weight:550}
.lead{margin:0 0 20px;font-size:13px;line-height:1.8;color:var(--muted)}

button,.btn{
  border-radius:14px;border:1px solid var(--line);
  background:var(--surface-2);color:var(--text);
  font:inherit;font-size:12px;font-weight:450;
  min-height:36px;padding:8px 16px;
  cursor:pointer;transition:.18s;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  text-decoration:none;
}
button:hover,.btn:hover{background:color-mix(in srgb,var(--text) 13%,transparent);border-color:var(--line-hi)}
button.primary,.btn.primary{
  background:color-mix(in srgb,var(--text) 19%,transparent)!important;
  color:var(--text)!important;
  border:1px solid var(--line-hi)!important;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.12);
  font-weight:500;
}
button.primary:hover,.btn.primary:hover{background:color-mix(in srgb,var(--text) 27%,transparent)!important}
button:disabled{opacity:.5;cursor:not-allowed}
input,select,textarea{
  background:var(--surface-2)!important;
  border:1px solid var(--line)!important;
  border-radius:13px;padding:11px 14px;
  color:var(--text)!important;font:inherit;font-size:13px;width:100%;
}
input:focus,select:focus{
  outline:none;border-color:var(--line-hi)!important;
  box-shadow:0 0 0 3px color-mix(in srgb,var(--text) 9%,transparent);
}
label{display:grid;gap:7px;font-size:11px;color:var(--muted)}
label small{font-size:10px;color:var(--muted);line-height:1.6}
code,pre{font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace}
.msg{margin:0;min-height:18px;font-size:12px;line-height:1.6}
.msg.err{color:var(--red)}
.msg.ok{color:var(--green)}
.msg.busy{color:var(--amber)}

/* 品牌块 */
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--text)}
.brand-mark{
  display:grid;place-items:center;
  width:28px;height:28px;flex:0 0 28px;
  border:1px solid var(--line-hi);border-radius:11px;
  background:transparent;color:var(--text);
  font-size:17px;font-weight:550;line-height:1;
}
.brand strong{display:block;font-size:20px;letter-spacing:-.045em;font-weight:600;line-height:1.2}
.brand small{display:block;font-size:8px;letter-spacing:.14em;color:var(--muted);margin-top:1px}

/* ============ 顶部导航（极简，对齐 topbar） ============ */
.topbar{
  position:sticky;top:0;z-index:60;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:16px 28px;
  background:color-mix(in srgb,var(--bg) 70%,transparent);
  -webkit-backdrop-filter:blur(24px) saturate(120%);
  backdrop-filter:blur(24px) saturate(120%);
  border-bottom:1px solid var(--line);
}
.topbar-nav{display:flex;gap:4px;align-items:center}
.topbar-nav a{
  padding:8px 13px;border-radius:12px;
  color:var(--muted);text-decoration:none;font-size:12px;
  border:1px solid transparent;transition:.18s;
}
.topbar-nav a:hover{background:var(--surface-2);color:var(--text);border-color:var(--line)}
.topbar-nav a.solid{
  border-color:var(--line-hi);
  background:color-mix(in srgb,var(--text) 19%,transparent);
  color:var(--text);font-weight:500;
}

/* ============ 首屏：左叙事 + 右卡片（复刻 login-layout） ============ */
.hero{
  max-width:1180px;margin:0 auto;
  padding:56px 28px 44px;
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,460px);
  gap:56px;align-items:center;
}
.hero-story{display:grid;gap:28px;align-content:center}
.hero-story .brand{display:none}
.hero-story h1{
  font-size:clamp(30px,4.4vw,46px);
  line-height:1.22;letter-spacing:-.03em;
  margin:0;
}
.hero-story h1 span{color:var(--muted)}
.hero-story p{
  margin:0;font-size:14px;line-height:1.85;color:var(--muted);
  max-width:460px;
}
.story-foot{
  font-size:9px;letter-spacing:.16em;color:var(--muted);
  text-transform:uppercase;padding-top:8px;
}

/* 右侧主卡片 */
.hero-card{
  padding:30px 30px 28px;
  display:grid;gap:20px;
}
.hero-card h2{font-size:19px;font-weight:600}
.hero-card .sub{margin:0;font-size:12px;line-height:1.75;color:var(--muted)}
.hero-actions{display:grid;gap:10px}
.hero-actions .btn{width:100%;min-height:42px;font-size:13px}
.hero-note{
  margin:0;font-size:10px;line-height:1.7;color:var(--muted);
  padding-top:4px;border-top:1px solid var(--line);
}

/* ============ 主体容器 ============ */
.wrap{max-width:1180px;margin:0 auto;padding:0 28px 60px;display:grid;gap:18px}

/* 区块标题（对齐 section-title） */
.section-title{
  display:flex;align-items:baseline;justify-content:space-between;
  gap:12px;margin:8px 0 0;
}
.section-title h2{font-size:17px}
.section-title span{font-size:11px;color:var(--muted)}

/* ============ 免费试用 ============ */
.free-card{padding:26px 28px 28px;display:grid;gap:16px}
.free-card form{display:grid;gap:14px}
.cf-slot{min-height:0}
.cf-slot:not(:empty){min-height:65px;padding:2px 0}
.result{
  padding:16px;border-radius:18px;
  border:1px solid var(--line);background:var(--surface-2);
  display:grid;gap:10px;
}
.result-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.result-head strong{font-size:12px}
.result-head button{min-height:28px;padding:4px 12px;font-size:10px}
.result pre{
  margin:0;padding:13px;border-radius:12px;
  background:color-mix(in srgb,var(--bg) 26%,transparent);
  font-size:12px;line-height:1.85;word-break:break-all;white-space:pre-wrap;
}
.result-meta{margin:0;font-size:10px;color:var(--muted)}

/* ============ 价目 ============ */
.price-grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}
.price-card{
  padding:20px 18px;display:grid;gap:6px;
  border:1px solid var(--line);border-radius:20px;
  background:var(--surface-2);transition:.18s;
}
.price-card:hover{border-color:var(--line-hi);background:color-mix(in srgb,var(--text) 7%,transparent)}
.price-card.hot{border-color:var(--line-hi);box-shadow:inset 0 1px 0 rgba(255,255,255,.1)}
.price-card .eyebrow{margin:0}
.price-num{
  font-size:24px;font-weight:550;letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;margin:2px 0 0;
}
.price-num small{font-size:11px;font-weight:400;color:var(--muted);margin-left:2px}
.price-per{font-size:10px;color:var(--muted);font-variant-numeric:tabular-nums}
.price-card .btn{margin-top:10px;width:100%;min-height:34px;font-size:11px}
.price-note{margin:0;font-size:10px;line-height:1.75;color:var(--muted)}

/* ============ 三步（对齐 tutorial .steps） ============ */
.steps{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.steps article{
  padding:18px;display:grid;gap:6px;align-content:start;
  border:1px solid var(--line);border-radius:18px;
  background:var(--surface-2);
}
.steps b{
  font-size:11px;font-weight:550;color:var(--muted);
  letter-spacing:.08em;font-variant-numeric:tabular-nums;
}
.steps h3{font-size:13px;font-weight:550;margin:0}
.steps p{margin:0;font-size:11px;line-height:1.75;color:var(--muted)}
.steps a{color:var(--text);text-decoration:underline;text-underline-offset:2px}

/* ============ FAQ ============ */
.faq-card{padding:24px 28px 26px}
.faq-card details{border-top:1px solid var(--line);padding:13px 0}
.faq-card details:first-of-type{border-top:0;padding-top:2px}
.faq-card summary{
  cursor:pointer;font-size:13px;font-weight:500;list-style:none;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.faq-card summary::-webkit-details-marker{display:none}
.faq-card summary::after{content:"+";font-size:15px;color:var(--muted);line-height:1}
.faq-card details[open] summary::after{content:"−"}
.faq-card p{margin:8px 0 0;font-size:12px;line-height:1.85;color:var(--muted)}

/* ============ 页脚（对齐 side-foot / login-domain） ============ */
.foot{
  max-width:1180px;margin:0 auto;padding:24px 28px 48px;
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);
  font-size:10px;color:var(--muted);letter-spacing:.04em;
}
.foot-links{display:flex;gap:16px}
.foot-links a{color:var(--muted);text-decoration:none}
.foot-links a:hover{color:var(--text)}

/* ============ 响应式 ============ */
@media (max-width:900px){
  .hero{grid-template-columns:1fr;gap:32px;padding:36px 20px 30px}
  .hero-story .brand{display:inline-flex;margin-bottom:4px}
  .hero-story{gap:20px}
  .hero-story h1{font-size:clamp(26px,7vw,34px)}
  .wrap{padding:0 20px 44px}
  .topbar{padding:13px 20px}
  .topbar-nav a{padding:7px 11px;font-size:11px}
  .foot{padding:20px 20px 36px;flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .price-grid{grid-template-columns:1fr 1fr}
  .price-card{padding:15px 14px;border-radius:16px}
  .price-num{font-size:21px}
  .free-card,.faq-card,.hero-card{padding:20px 18px}
  .steps{grid-template-columns:1fr}
  .hero-card h2{font-size:17px}
}
@media (max-width:380px){
  .price-grid{grid-template-columns:1fr}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition:none!important;animation:none!important}
}