/* ==========================================================================
   官网样式（深色皮肤）
   品牌色通过 <style>:root{--accent: ...}</style> 注入，来自后台「站点配置」。
   刻意不引任何外部字体 / CDN：CSP 更紧，离线也能跑。
   ========================================================================== */

:root {
  --bg: #05000f;
  --bg-2: #0a0620;
  --text: #ffffff;
  --text-2: #a8a8c2;
  --text-3: #6e6e8a;
  --line: rgba(255, 255, 255, 0.08);
  --line-2: rgba(255, 255, 255, 0.16);
  --glass: rgba(255, 255, 255, 0.04);
  --glass-2: rgba(255, 255, 255, 0.06);
  --ok: #22c55e;
  --warn: #ffb454;
  --radius: 16px;
  --wrap: 1200px;
  --font: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", "Cascadia Mono", Consolas, "Courier New", monospace;
}

* { box-sizing: border-box; }

/* 关键：JS 用 el.hidden=true 隐藏元素时，靠的是浏览器默认样式表里的
   [hidden]{display:none}。但它比任何类选择器优先级都低 —— 只要写了
   .xxx{display:flex}，元素就永远关不掉。这里补一条高优先级的兜底。 */
[hidden] { display: none !important; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { margin: 0 0 10px; line-height: 1.3; }
h1 { font-size: 30px; }
h2 { font-size: 28px; letter-spacing: -0.01em; }
h3 { font-size: 16px; }
p { margin: 0 0 12px; }
img, svg { max-width: 100%; }

.muted { color: var(--text-2); }
.small { font-size: 12.5px; }
.mono { font-family: var(--mono); }
.accent { color: var(--accent); }
.center { text-align: center; }
.center-text { text-align: center; }
.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 32px; }
.wrap.narrow { max-width: 820px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 18px; border-radius: 999px; border: 1px solid transparent;
  font-size: 14px; font-weight: 600; font-family: var(--font);
  cursor: pointer; transition: transform .15s ease, background .2s ease, border-color .2s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { filter: brightness(1.1); }
.btn-outline { border-color: var(--line-2); color: var(--text); background: transparent; }
.btn-outline:hover { background: var(--glass); }
.btn-ghost { color: var(--text-2); }
.btn-ghost:hover { color: var(--text); }
.btn-lg { padding: 13px 26px; font-size: 15px; }
.btn-disabled { background: var(--glass); color: var(--text-3); cursor: not-allowed; }
.link { color: var(--accent); font-size: 13.5px; font-weight: 600; }

/* ---------- 导航 ---------- */
.nav {
  position: sticky; top: 0; z-index: 40;
  backdrop-filter: blur(14px);
  background: rgba(5, 0, 15, 0.72);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: var(--wrap); margin: 0 auto; padding: 0 32px; height: 68px;
  display: flex; align-items: center; gap: 28px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark {
  width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--accent), #5b21b6);
  font-size: 15px; font-weight: 700; color: #fff;
}
.brand-name { font-weight: 700; letter-spacing: -0.01em; }
.nav-links { display: flex; gap: 22px; margin-left: auto; font-size: 14px; color: var(--text-2); }
.nav-links a:hover { color: var(--text); }
.nav-actions { display: flex; gap: 10px; }

/* ---------- 区块 ---------- */
.block { padding: 64px 0; position: relative; }
.block.alt { background: linear-gradient(180deg, rgba(255,255,255,0.015), rgba(255,255,255,0)); }
.block-head { max-width: 720px; margin-bottom: 28px; }
.block-foot { margin-top: 26px; }
.eyebrow {
  display: inline-block; font-family: var(--mono); font-size: 12px; letter-spacing: .08em;
  color: var(--accent); text-transform: uppercase; margin-bottom: 10px;
}
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: center; }

/* ---------- 卡片 ---------- */
.grid { display: grid; gap: 16px; }
.cols-2 { grid-template-columns: repeat(2, 1fr); }
.cols-3 { grid-template-columns: repeat(3, 1fr); }
.cols-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--glass); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 20px;
  display: flex; flex-direction: column; gap: 12px;
}
.card-head { display: flex; align-items: center; gap: 10px; justify-content: space-between; }
.card-icon {
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
  background: rgba(147, 51, 234, 0.14);
}
.card-tagline { font-weight: 600; margin: 0; }
.card-desc { color: var(--text-2); font-size: 13.5px; margin: 0; }
.card-foot { display: flex; align-items: center; justify-content: space-between; margin-top: auto; padding-top: 6px; }
.price { font-family: var(--mono); color: var(--accent); font-weight: 600; }
.ghost-card { border-style: dashed; background: transparent; }
.ghost-card h3 { color: var(--text-2); }

.tag {
  font-size: 11px; padding: 3px 9px; border-radius: 999px;
  background: var(--glass-2); color: var(--text-2); white-space: nowrap;
}
.tag-hot { background: var(--accent); color: #fff; }
.tag-ok { background: rgba(34, 197, 94, .16); color: var(--ok); }

/* 「怎么试」标签：同一排卡片上把试法区分开（在线试 / 下载 / 还没做完） */
.try-chip { background: var(--glass-2); color: var(--text-2); }
.try-online { background: rgba(147, 51, 234, .18); color: var(--accent); }
.try-download { background: rgba(56, 189, 248, .14); color: #7dd3fc; }
.try-coming, .try-none { background: rgba(255,255,255,.05); color: var(--text-3); }

/* ---------- Hero ---------- */
.hero { padding: 76px 0 64px; overflow: hidden; }
.hero-bg {
  position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(60% 55% at 50% 0%, rgba(147, 51, 234, .30), transparent 62%);
}
.hero-inner { position: relative; display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.hero-title { font-size: 58px; line-height: 1.12; letter-spacing: -0.03em; margin: 14px 0 0; }
.hero-sub { color: var(--text-2); font-size: 16px; margin-top: 16px; max-width: 560px; }
.hero-sub.big { font-size: 20px; color: var(--text); }
.hero-cta { display: flex; gap: 14px; margin-top: 26px; flex-wrap: wrap; }
.hero-trust { color: var(--text-3); font-size: 13px; margin-top: 18px; }
.hero-product .hero-copy { max-width: 820px; }
.narrow-copy { max-width: 760px; }
.hero-copy { position: relative; }

.pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px; border-radius: 999px; background: var(--glass-2);
  font-size: 12.5px; color: var(--text-2);
}
.pill.plain { font-family: var(--mono); }
.chips { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 10px; }
.dot { width: 6px; height: 6px; border-radius: 999px; background: var(--ok); }

/* ---------- 产品窗口示意 ---------- */
.hero-mock { position: relative; }
.mock-window {
  border-radius: 16px; border: 1px solid var(--line);
  background: rgba(255, 255, 255, .045); overflow: hidden;
  backdrop-filter: blur(8px);
}
.mock-bar {
  display: flex; align-items: center; gap: 7px; padding: 0 16px; height: 42px;
  background: rgba(255, 255, 255, .03); border-bottom: 1px solid var(--line);
}
.mock-dot { width: 9px; height: 9px; border-radius: 999px; background: rgba(255,255,255,.16); }
.mock-spacer { flex: 1; }
.mock-tag { font-family: var(--mono); font-size: 11px; color: var(--text-3); }
.mock-body { display: grid; grid-template-columns: 170px 1fr; min-height: 232px; }
.mock-side { padding: 14px 12px; border-right: 1px solid var(--line); display: flex; flex-direction: column; gap: 5px; }
.mock-item { padding: 7px 9px; border-radius: 7px; font-size: 12.5px; color: var(--text-3); }
.mock-item.active { background: rgba(255,255,255,.06); color: var(--text); }
.mock-main { padding: 12px 14px; display: flex; flex-direction: column; gap: 6px; }
.mock-row {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 8px 10px; border-radius: 7px; font-size: 12.5px; color: var(--text-2);
  background: rgba(255,255,255,.03);
}
.mock-row.head { background: transparent; color: var(--text-3); font-family: var(--mono); font-size: 11px; }
.mock-row .ok { color: var(--ok); font-size: 11.5px; }
.mock-row .warn { color: var(--warn); font-size: 11.5px; }

/* ---------- 下载 / 历史 ---------- */
.download-card .btn { margin-top: auto; }
.history { margin-top: 26px; display: flex; flex-direction: column; gap: 10px; }
.history h4 { color: var(--text-3); font-size: 12px; letter-spacing: .06em; text-transform: uppercase; }
.history-row { display: grid; grid-template-columns: 90px 100px 1fr; gap: 12px; font-size: 13px; color: var(--text-2); }

/* ---------- 定价 ---------- */
.tiers .tier { gap: 14px; }
.tier-price { display: flex; align-items: baseline; gap: 8px; margin: 6px 0; }
.tier-price strong { font-size: 38px; font-family: var(--mono); letter-spacing: -0.02em; }
.tier-features { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; color: var(--text-2); font-size: 13px; }
.tier-features li::before { content: "·"; color: var(--accent); margin-right: 8px; font-weight: 700; }
.tier-hot { background: rgba(147, 51, 234, .12); border-color: rgba(147, 51, 234, .55); }
.tier .btn { margin-top: auto; }

/* ---------- 联系表单 ---------- */
.contact-list { display: flex; flex-direction: column; gap: 16px; margin-top: 22px; }
.contact-list > div { display: flex; flex-direction: column; gap: 3px; }
.form-card { gap: 14px; }
.form-card label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--text-2); }
.form-card em { color: var(--accent); font-style: normal; font-size: 11px; }
input[type="text"], input[type="password"], input[type="number"], input[type="email"], select, textarea {
  width: 100%; padding: 10px 12px; border-radius: 10px;
  background: rgba(255,255,255,.05); border: 1px solid var(--line-2);
  color: var(--text); font-family: var(--font); font-size: 14px; outline: none;
}
input:focus, select:focus, textarea:focus { border-color: var(--accent); }
select option { background: #0d0824; }
.honeypot { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.form-msg { font-size: 13px; margin: 0; min-height: 20px; }
.form-msg.ok { color: var(--ok); }
.form-msg.err { color: #ff6b8a; }

/* ---------- FAQ ---------- */
.faq-list { display: flex; flex-direction: column; gap: 10px; }
.faq { background: var(--glass); border: 1px solid var(--line); border-radius: 12px; padding: 4px 18px; }
.faq summary { cursor: pointer; padding: 14px 0; font-weight: 600; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; float: right; color: var(--text-3); font-family: var(--mono); }
.faq[open] summary::after { content: "−"; }
.faq p { padding-bottom: 14px; margin: 0; }

/* ---------- 页头 / 详情 / 试一下 ---------- */
.page-head { padding: 56px 0 28px; border-bottom: 1px solid var(--line); }
.page-head.tall { padding: 120px 0; border: 0; }
.crumbs { display: flex; gap: 8px; font-size: 13px; color: var(--text-3); margin-bottom: 18px; }
.spec { margin: 0; display: flex; flex-direction: column; gap: 12px; }
.spec > div { display: flex; justify-content: space-between; gap: 16px; border-bottom: 1px solid var(--line); padding-bottom: 10px; }
.spec dt { color: var(--text-3); font-size: 13px; margin: 0; }
.spec dd { margin: 0; font-size: 13.5px; }
.inline-cta { display: flex; gap: 14px; justify-content: center; margin-top: 20px; flex-wrap: wrap; }
.prose h3 { margin-top: 26px; }
.plain-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; color: var(--text-2); font-size: 13.5px; }
.plain-list li::before { content: "·"; color: var(--accent); margin-right: 8px; font-weight: 700; }

.trial-grid { display: grid; grid-template-columns: 1fr 460px; gap: 20px; padding: 28px 32px 64px; }
.trial-left, .trial-right { display: flex; flex-direction: column; gap: 16px; }
.lead-line { font-size: 17px; color: var(--text); margin-bottom: 8px; }
.trial-left .spec { margin-top: 18px; }

/* ---------- 隐私横幅 ---------- */
.privacy-bar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 60;
  display: flex; align-items: center; justify-content: center; gap: 16px;
  padding: 12px 24px; background: rgba(10, 6, 32, .96); border-top: 1px solid var(--line);
  font-size: 13px; color: var(--text-2);
}
.privacy-ok { background: var(--accent); color: #fff; border: 0; border-radius: 999px; padding: 6px 16px; cursor: pointer; font-size: 13px; }

/* ---------- 笔记 / 关于 / 怎么试 / 怎么收费 ---------- */
.wrap.narrow { max-width: 820px; }

/* 关于我 */
.about-wrap { display: grid; grid-template-columns: 220px 1fr; gap: 40px; align-items: start; }
.about-wrap.about-b { grid-template-columns: 1fr; justify-items: center; text-align: center; max-width: 720px; }
.about-avatar img { width: 200px; height: 200px; border-radius: 18px; object-fit: cover; border: 1px solid var(--line); }
.about-body h2 { margin-top: 6px; }
.about-body p { color: var(--text-2); line-height: 1.9; margin: 0 0 15px; }
.about-body .btn { margin-top: 8px; }

/* 笔记卡片（首页那一排）*/
.note-card { display: flex; flex-direction: column; gap: 8px; text-decoration: none; }
.note-card h3 { margin: 0; font-size: 16px; }
.note-card .link { margin-top: auto; }
.note-meta { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

/* 笔记列表 */
.note-list { display: flex; flex-direction: column; }
.note-row {
  display: grid; grid-template-columns: 108px 1fr; gap: 18px;
  padding: 18px 16px; text-decoration: none; border-radius: 12px;
  border-bottom: 1px solid var(--line);
}
.note-row:hover { background: var(--glass); }
.note-row h3 { margin: 0 0 6px; font-size: 16.5px; }
.note-row p { margin: 0; font-size: 13.5px; line-height: 1.7; }
.note-row-date { padding-top: 3px; }
.note-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 8px; }

/* 笔记正文 */
.note-article { padding: 48px 32px 8px; }
.note-head { margin-bottom: 30px; }
.note-head h1 { font-size: 32px; line-height: 1.32; margin: 10px 0 14px; }
.prose { color: var(--text-2); font-size: 15px; line-height: 1.9; }
.prose h2 { font-size: 21px; margin: 34px 0 12px; color: var(--text); }
.prose h3 { font-size: 17.5px; margin-top: 28px; color: var(--text); }
.prose p { margin: 0 0 16px; }
.prose ul, .prose ol { margin: 0 0 16px; padding-left: 24px; }
.prose li { margin-bottom: 7px; }
.prose blockquote {
  margin: 20px 0; padding: 14px 18px; border-left: 3px solid var(--accent);
  background: var(--glass); border-radius: 0 10px 10px 0;
}
.prose blockquote p:last-child { margin-bottom: 0; }
.prose code {
  font-family: var(--mono); font-size: 13px; padding: 2px 6px;
  background: rgba(147, 51, 234, .12); border-radius: 5px; color: var(--text);
}
.prose pre {
  background: rgba(0, 0, 0, .35); border: 1px solid var(--line); border-radius: 10px;
  padding: 14px 16px; overflow-x: auto; margin: 0 0 18px;
}
.prose pre code { background: none; padding: 0; font-size: 12.5px; line-height: 1.75; color: var(--text-2); }
.prose img { max-width: 100%; border-radius: 10px; margin: 8px 0; }
.prose a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.note-foot { display: flex; gap: 12px; padding-top: 28px; padding-bottom: 56px; flex-wrap: wrap; }

/* 怎么试的卡片 */
.try-card .card-foot { margin-top: auto; }

/* 怎么收费：按工具分组 */
.price-groups { display: flex; flex-direction: column; gap: 38px; }
.price-group-head {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  margin-bottom: 16px; padding-bottom: 12px; border-bottom: 1px solid var(--line);
}
.price-group-head h3 { margin: 0; font-size: 18px; }
.price-group-head .link { margin-left: auto; }

/* ---------- 页脚 ---------- */
.footer { border-top: 1px solid var(--line); margin-top: 40px; background: rgba(255,255,255,.012); }
.footer-inner { max-width: var(--wrap); margin: 0 auto; padding: 48px 32px 32px; display: grid; grid-template-columns: 1.2fr 2fr; gap: 40px; }
.footer-brand .brand { margin-bottom: 12px; }
.footer-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.footer-links h4 { font-size: 12px; color: var(--text-3); letter-spacing: .06em; text-transform: uppercase; }
.footer-links a { display: block; font-size: 13.5px; color: var(--text-2); padding: 4px 0; }
.footer-links a:hover { color: var(--text); }
.footer-bottom {
  border-top: 1px solid var(--line); padding: 16px 32px;
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  max-width: var(--wrap); margin: 0 auto; font-size: 12.5px; color: var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .hero-inner, .two-col, .trial-grid, .footer-inner { grid-template-columns: 1fr; }
  .hero-title { font-size: 42px; }
  .cols-3, .cols-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  .wrap { padding: 0 20px; }
  .nav-links { display: none; }
  .hero-title { font-size: 32px; }
  .cols-2, .cols-3, .cols-4 { grid-template-columns: 1fr; }
  .footer-links { grid-template-columns: 1fr 1fr; }
  h2 { font-size: 22px; }
}