/* 网站外观：印刷样张的语汇（裁切线、印刷色条），深蓝油墨文字，印刷青按钮。 */
:root {
  --ink: #102a43; --ink-soft: #334e68; --muted: #52606d; --paper: #f7f8f6; --white: #fff; --rule: #d5dae0;
  --cyan: #0077a8; --cyan-deep: #005e85; --magenta: #d6006f; --yellow: #f7d117; --key: #1b1f23;
  --display: "Bahnschrift SemiCondensed", "Bahnschrift", "DIN Condensed", "DIN Alternate", "Roboto Condensed", "Arial Narrow", system-ui, sans-serif;
  --body: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}
:root:not([data-theme=dark]), [data-theme=light] {
  --pico-font-family: var(--body);
  --pico-background-color: var(--paper);
  --pico-color: var(--ink-soft);
  --pico-h1-color: var(--ink); --pico-h2-color: var(--ink); --pico-h3-color: var(--ink);
  --pico-h4-color: var(--ink); --pico-h5-color: var(--ink); --pico-h6-color: var(--ink);
  --pico-muted-color: var(--muted); --pico-muted-border-color: var(--rule);
  --pico-primary: var(--cyan); --pico-primary-background: var(--cyan); --pico-primary-border: var(--cyan);
  --pico-primary-underline: rgba(0, 119, 168, .45); --pico-primary-focus: rgba(0, 119, 168, .3); --pico-primary-inverse: #fff;
  --pico-primary-hover: var(--cyan-deep); --pico-primary-hover-background: var(--cyan-deep);
  --pico-primary-hover-border: var(--cyan-deep); --pico-primary-hover-underline: var(--cyan-deep);
  --pico-secondary: var(--ink-soft); --pico-secondary-background: var(--ink-soft); --pico-secondary-border: var(--ink-soft);
  --pico-secondary-hover: var(--ink); --pico-secondary-hover-background: var(--ink); --pico-secondary-hover-border: var(--ink);
  --pico-card-background-color: var(--white); --pico-card-sectioning-background-color: var(--white);
  --pico-form-element-background-color: var(--white);
  --pico-border-radius: .25rem;
}

/* 字体：标题用 DIN 风格的工业字（标签、招牌常用），内文用系统字 */
h1, h2, h3 { font-family: var(--display); font-weight: 700; letter-spacing: .005em; }
h1 { font-size: clamp(2.1rem, 4.2vw, 3.3rem); line-height: 1.05; }
h2 { font-size: clamp(1.6rem, 2.6vw, 2.15rem); line-height: 1.1; }
h3 { font-size: 1.2rem; line-height: 1.25; }
p { max-width: 72ch; }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 40rem; }
a:focus-visible, button:focus-visible, [role=button]:focus-visible, summary:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; }

/* 页首 */
.site-header { background: var(--white); border-bottom: 1px solid var(--rule); }
.site-header nav { flex-wrap: wrap; }
.site-header nav ul { flex-wrap: wrap; }
.logo { display: inline-flex; align-items: center; gap: .55rem; font-family: var(--display); font-weight: 700; font-size: 1.3rem; color: var(--ink); text-decoration: none; }
.logo:hover { color: var(--ink); }
.logo img { height: 32px; width: auto; }
.logo-mark { width: 1.55rem; height: 1.55rem; color: var(--ink); flex: none; }
main.page { padding-block: 2rem 3.5rem; }
.notice { border-left: 4px solid var(--cyan); }

/* 首页：样张 */
.hero { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: clamp(2.5rem, 5vw, 4.5rem); align-items: center; padding-block: clamp(2.5rem, 6vw, 5rem); }
.hero h1 { font-size: clamp(2.5rem, 5.6vw, 4.3rem); line-height: 1; max-width: 13em; margin-bottom: 1.1rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-block: 1.75rem 1.25rem; }
.hero-actions [role=button] { margin: 0; }
.facts, .checks, .modules, .steps { list-style: none; padding: 0; margin: 0; }
.facts li, .checks li, .modules li, .steps li { list-style: none; }
.facts { display: flex; flex-wrap: wrap; gap: .4rem 1.5rem; font-size: .95rem; color: var(--muted); }
.facts li { margin: 0; }
.facts li::before, .checks li::before { content: ""; display: inline-block; width: .55rem; height: .55rem; background: var(--cyan); margin-right: .6rem; vertical-align: .1em; }
.proof { position: relative; margin: 26px; padding: 1.5rem; background: var(--white); border: 1px solid var(--rule); box-shadow: 0 24px 48px -32px rgba(16, 42, 67, .45); }
.crop { position: absolute; width: 0; height: 0; }
.crop::before, .crop::after { content: ""; position: absolute; background: var(--ink); }
.crop.tl { top: 0; left: 0; } .crop.tr { top: 0; right: 0; } .crop.bl { bottom: 0; left: 0; } .crop.br { bottom: 0; right: 0; }
.crop.tl::before, .crop.tr::before { left: 0; top: -22px; width: 1px; height: 15px; }
.crop.bl::before, .crop.br::before { left: 0; top: 7px; width: 1px; height: 15px; }
.crop.tl::after, .crop.bl::after { top: 0; left: -22px; width: 15px; height: 1px; }
.crop.tr::after, .crop.br::after { top: 0; left: 7px; width: 15px; height: 1px; }
.proof-title { font-family: var(--display); font-weight: 700; font-size: 1.9rem; color: var(--ink); margin: 0; line-height: 1; }
.proof-sub { margin: .25rem 0 1rem; color: var(--muted); }
.proof-body { display: flex; gap: 1.25rem; align-items: flex-end; flex-wrap: wrap; }
.proof-qr { width: min(12.5rem, 46vw); height: auto; color: var(--ink); display: block; }
.proof-dest { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: .3rem .75rem; font-size: .95rem; }
.proof-dest dt { color: var(--muted); font-weight: 400; margin: 0; }
.proof-dest dd { margin: 0; color: var(--ink); }
.proof-dest s { color: var(--muted); }
.proof-dest .now { font-weight: 600; color: var(--cyan-deep); }
.colorbar { display: flex; margin-top: 1.25rem; height: 12px; }
.colorbar span { flex: 0 0 22px; }
.colorbar .c { background: #00a0e0; } .colorbar .m { background: var(--magenta); } .colorbar .y { background: var(--yellow); } .colorbar .k { background: var(--key); }
.colorbar .c50 { background: #80d0f0; } .colorbar .m50 { background: #eb80b7; } .colorbar .y50 { background: #fbe88b; } .colorbar .k50 { background: #8d8f91; }
.proof figcaption { margin-top: .9rem; font-size: .9rem; color: var(--muted); }

/* 首页：段落 */
.band { padding-block: clamp(3rem, 6vw, 4.5rem); border-top: 1px solid var(--rule); }
.band h2 { margin-bottom: 1.75rem; }
.type-groups { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2rem 2.5rem; }
.type-group h3 { padding-bottom: .6rem; border-bottom: 2px solid var(--ink); margin-bottom: .4rem; }
.modules li { padding: .55rem 0; border-bottom: 1px solid var(--rule); margin: 0; }
.modules strong { display: block; color: var(--ink); font-weight: 600; }
.modules span { display: block; font-size: .9rem; color: var(--muted); }
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2rem; }
.steps li { counter-increment: step; margin: 0; border-top: 2px solid var(--ink); padding-top: 1rem; }
.steps li::before { content: counter(step); display: block; font-family: var(--display); font-weight: 700; font-size: 2.6rem; line-height: 1; color: var(--cyan); margin-bottom: .6rem; }
.split-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 2rem 3rem; align-items: start; }
.checks li { padding: .6rem 0; border-bottom: 1px solid var(--rule); margin: 0; color: var(--ink); }
.narrow { max-width: 46rem; }
.faq details { border-bottom: 1px solid var(--rule); padding-block: .35rem; margin: 0; }
.cta { background: var(--white); }
.cta h2 { max-width: 22ch; }

.legal h2 { font-size: 1.25rem; margin-top: 2rem; }
.legal li { margin-bottom: .4rem; }

/* 价格 */
.page-head { margin-bottom: 2rem; }
.plans { display: grid; grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr)); gap: 1.5rem; align-items: start; }
.plan { margin: 0; border: 1px solid var(--rule); border-top: 4px solid var(--rule); box-shadow: none; }
.plan-pro { border-top-color: var(--cyan); }
.price { font-family: var(--display); font-weight: 700; font-size: 2.6rem; color: var(--ink); margin: .25rem 0 .2rem; line-height: 1; }
.price small { font-size: 1rem; color: var(--muted); font-family: var(--body); font-weight: 400; }
.price-alt { color: var(--muted); }
.plan .checks { margin-block: 1rem 1.5rem; }
.plan form { margin-bottom: .6rem; }
.fine { margin-top: 1.5rem; color: var(--muted); font-size: .9rem; }

/* 开发者说明 */
.docs { display: grid; grid-template-columns: 13rem minmax(0, 1fr); gap: 3rem; align-items: start; }
/* Pico 会把所有 nav 排成横列，这里的目录要直排 */
nav.docs-nav { display: block; position: sticky; top: 1rem; font-size: .92rem; }
nav.docs-nav ul, nav.docs-nav ul:first-of-type, nav.docs-nav ul:last-of-type { display: block; list-style: none; padding: 0; margin: 0; border-left: 2px solid var(--rule); }
nav.docs-nav li { display: block; list-style: none; margin: 0; padding: 0; }
nav.docs-nav a { display: block; padding: .3rem 0 .3rem 1rem; margin-left: -2px; border-left: 2px solid transparent; color: var(--ink-soft); text-decoration: none; }
nav.docs-nav a:hover { color: var(--cyan-deep); border-left-color: var(--cyan); }
.docs-body h2 { margin-top: 2.75rem; padding-top: 1rem; border-top: 1px solid var(--rule); scroll-margin-top: 1rem; }
.docs-body pre { background: #0f2236; color: #e3edf5; padding: 1rem 1.1rem; border-radius: .25rem; overflow-x: auto; font-size: .85rem; line-height: 1.55; }
.docs-body pre code { background: none; color: inherit; padding: 0; }

/* 页尾 */
.site-footer { border-top: 1px solid var(--rule); background: var(--white); padding-block: 2.5rem 1.5rem; font-size: .92rem; }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3, minmax(0, 1fr)); gap: 2rem; }
.footer-grid h4 { font-family: var(--body); font-size: .95rem; font-weight: 600; margin-bottom: .6rem; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { list-style: none; margin: 0 0 .35rem; }
.footer-grid a:not(.logo) { color: var(--ink-soft); text-decoration: none; }
.footer-grid a:not(.logo):hover { color: var(--cyan-deep); text-decoration: underline; }
.footer-base { margin-top: 2rem; color: var(--muted); }

/* 后台页面原本就有的样式 */
.inline { display: inline-block; margin: 0 .5rem .5rem 0; }
.inline button { margin: 0; }
.chart { color: var(--pico-primary); display: block; }
.codes { font-size: 1.2rem; line-height: 1.8; }
.grid-kinds { display: grid; grid-template-columns: repeat(auto-fill, minmax(13rem, 1fr)); gap: 1rem; margin-bottom: 1.5rem; }
.kind { display: block; padding: 1rem; border: 1px solid var(--rule); border-radius: .25rem; text-decoration: none; background: var(--white); }
.kind:hover { border-color: var(--cyan); }
.kind small { display: block; color: var(--muted); margin-top: .25rem; }
table { background: var(--white); }
th { color: var(--ink); font-weight: 600; }

@media (max-width: 900px) {
  .hero, .split-grid, .docs { grid-template-columns: 1fr; }
  .type-groups, .steps { grid-template-columns: 1fr; }
  nav.docs-nav { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

/* 复制按钮 */
button.copy { display: inline-block; width: auto; padding: .15rem .6rem; margin: 0 0 0 .35rem; font-size: .8rem; vertical-align: middle; }

/* 价格页的方案卡片 */
.plans article.current { outline: 2px solid var(--pico-primary); }
.plans .price { font-size: 1.8rem; margin-bottom: .5rem; }
.plans form { margin-bottom: .5rem; }
.made-with { margin-top: .75rem; opacity: .7; }