/* web/store/store.css — Pilot 商店物料站共享样式。
   纯自包含：无外部字体、无图片依赖、无构建。三个页面共用。 */

:root {
  --paper: #f7f6f2;
  --surface: #ffffff;
  --ink: #23263a;
  --ink-soft: #4b5065;
  --muted: #6d7385;
  --line: #e7e4da;
  --accent: #e14d6b;
  --accent-deep: #c23a58;
  --violet: #4f46e5;
  --violet-deep: #3b34c0;
  --violet-soft: #eef0fe;
  --rose-soft: #fdeef2;
  --hero-a: #312e81;
  --hero-b: #7c3aed;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 1px 2px rgba(35, 38, 58, 0.06);
  --shadow: 0 1px 2px rgba(35, 38, 58, 0.05), 0 10px 28px rgba(35, 38, 58, 0.08);
  --maxw: 1080px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
svg { display: block; }
.wrap { width: min(var(--maxw), calc(100% - 2.5rem)); margin-inline: auto; }
.section { padding-block: 4.5rem; }
.kicker {
  display: inline-block;
  color: var(--accent-deep);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.sec-head { text-align: center; }
.sec-head h2 { margin: 0.5rem 0 0.7rem; font-size: clamp(1.6rem, 3.2vw, 2.1rem); line-height: 1.3; }
.sec-sub { color: var(--muted); max-width: 560px; margin: 0 auto; }
:focus-visible { outline: 2px solid var(--violet); outline-offset: 2px; }

/* 顶部与页头 */
.skip-link {
  position: absolute; left: 1rem; top: -3rem; z-index: 50;
  background: var(--ink); color: #fff; padding: 0.6rem 1rem;
  border-radius: 8px; text-decoration: none; transition: top 0.15s ease;
}
.skip-link:focus { top: 1rem; }
.site-header {
  position: sticky; top: 0; z-index: 40;
  background: rgba(255, 255, 255, 0.92);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-row { display: flex; align-items: center; gap: 1.25rem; padding-block: 0.8rem; flex-wrap: wrap; }
.brand { display: inline-flex; align-items: center; gap: 0.5rem; text-decoration: none; font-weight: 700; font-size: 1.15rem; }
.brand-mark { width: 30px; height: 30px; border-radius: 8px; }
.brand-tag {
  font-size: 0.72rem; font-weight: 600; color: var(--violet-deep);
  background: var(--violet-soft); border-radius: 999px; padding: 0.15rem 0.6rem;
}
.site-nav { display: flex; gap: 0.25rem; margin-left: auto; flex-wrap: wrap; }
.site-nav a {
  text-decoration: none; color: var(--ink-soft); font-weight: 500;
  padding: 0.45rem 0.7rem; border-radius: 8px; font-size: 0.95rem;
}
.site-nav a:hover { color: var(--ink); background: var(--paper); }
.lang-toggle {
  border: 1px solid var(--line); background: var(--surface); color: var(--ink-soft);
  font: inherit; font-size: 0.85rem; font-weight: 600; padding: 0.4rem 0.8rem;
  border-radius: 999px; cursor: pointer;
}
.lang-toggle:hover { border-color: var(--violet); color: var(--violet-deep); }

/* 首屏 */
.hero {
  background: linear-gradient(135deg, var(--hero-a), var(--hero-b));
  color: #fff; padding-block: 5.5rem 6rem; position: relative; overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute; inset: auto -8rem -10rem auto;
  width: 26rem; height: 26rem; border-radius: 50%;
  background: radial-gradient(circle, rgba(225, 77, 107, 0.35), transparent 65%);
}
.hero .wrap { position: relative; z-index: 1; max-width: 760px; margin-inline: auto; text-align: center; }
.hero-kicker {
  display: inline-block; margin: 0 0 1.1rem;
  font-size: 0.85rem; font-weight: 600; letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.3); border-radius: 999px; padding: 0.3rem 0.9rem;
}
.hero-title { margin: 0 0 1.2rem; font-size: clamp(2.1rem, 5.5vw, 3.4rem); line-height: 1.18; font-weight: 800; }
.hero-title .grad {
  background: linear-gradient(90deg, #f9a8d4, #fda4af);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub { margin: 0 auto 2.2rem; max-width: 560px; font-size: 1.08rem; color: rgba(255, 255, 255, 0.88); }
.hero-actions { display: flex; gap: 0.9rem; justify-content: center; flex-wrap: wrap; }
.hero-note { margin: 1.6rem 0 0; font-size: 0.82rem; color: rgba(255, 255, 255, 0.65); }

/* 按钮 */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.85rem 1.6rem; border-radius: 999px;
  font: inherit; font-size: 0.98rem; font-weight: 600; text-decoration: none;
  border: 1px solid transparent; cursor: pointer;
  transition: transform 0.12s ease, background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}
.btn:active { transform: translateY(1px); }
.btn-app { background: #fff; color: var(--ink); box-shadow: var(--shadow-sm); }
.btn-app:hover { background: #f4f2ee; }
.btn-ghost { color: #fff; border-color: rgba(255, 255, 255, 0.45); }
.btn-ghost:hover { background: rgba(255, 255, 255, 0.12); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-deep); }

/* 功能卡片 */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.1rem; margin-top: 2.6rem; text-align: left; }
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.6rem 1.4rem; box-shadow: var(--shadow-sm);
}
.card-icon {
  width: 44px; height: 44px; border-radius: 12px;
  display: grid; place-items: center; margin-bottom: 1rem;
  color: var(--violet-deep); background: var(--violet-soft);
}
.card:nth-child(3n + 2) .card-icon { background: var(--rose-soft); color: var(--accent-deep); }
.card h3 { margin: 0 0 0.5rem; font-size: 1.08rem; }
.card p { margin: 0; color: var(--muted); font-size: 0.95rem; }

/* 三步 */
.steps { background: var(--surface); border-block: 1px solid var(--line); }
.steps-list { list-style: none; margin: 2.6rem 0 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.1rem; }
.steps-list li { padding: 1.5rem 1.4rem 1.4rem; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); }
.step-num { font-size: 0.9rem; font-weight: 800; color: var(--accent-deep); letter-spacing: 0.08em; }
.steps-list h3 { margin: 0.5rem 0 0.4rem; font-size: 1.05rem; }
.steps-list p { margin: 0; color: var(--muted); font-size: 0.94rem; }

/* 特点 */
.hi-list { list-style: none; margin: 2.6rem 0 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.hi-list li { display: flex; gap: 1rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.4rem 1.5rem; }
.hi-check {
  flex: none; width: 26px; height: 26px; border-radius: 50%;
  background: var(--violet-soft); color: var(--violet-deep);
  display: grid; place-items: center; margin-top: 0.2rem;
}
.hi-list h3 { margin: 0 0 0.35rem; font-size: 1.05rem; }
.hi-list p { margin: 0; color: var(--muted); font-size: 0.95rem; }

/* 底部行动 */
.cta-band {
  background: linear-gradient(120deg, var(--violet-soft), var(--rose-soft));
  border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 3rem 2rem; text-align: center;
}
.cta-band h2 { margin: 0 0 0.6rem; font-size: clamp(1.5rem, 3vw, 2rem); }
.cta-band p { margin: 0 0 1.6rem; color: var(--ink-soft); }
.cta-links { display: flex; gap: 0.9rem; justify-content: center; flex-wrap: wrap; align-items: center; }
.cta-support { color: var(--violet-deep); font-weight: 600; }

/* 页脚 */
.site-footer { background: var(--ink); color: rgba(255, 255, 255, 0.82); padding-block: 3rem 2.2rem; }
.footer-grid { display: flex; gap: 2rem; justify-content: space-between; flex-wrap: wrap; }
.footer-brand p { margin: 0.4rem 0 0; color: rgba(255, 255, 255, 0.6); max-width: 380px; font-size: 0.92rem; }
.footer-brand .brand-name { color: #fff; font-weight: 700; font-size: 1.1rem; }
.footer-links { display: flex; flex-direction: column; gap: 0.55rem; }
.footer-links a { color: rgba(255, 255, 255, 0.85); text-decoration: none; }
.footer-links a:hover { text-decoration: underline; }
.footer-bottom {
  margin-top: 2.2rem; padding-top: 1.2rem; border-top: 1px solid rgba(255, 255, 255, 0.14);
  display: flex; gap: 1rem; justify-content: space-between; flex-wrap: wrap;
  font-size: 0.85rem; color: rgba(255, 255, 255, 0.55);
}
.footer-bottom p { margin: 0; }

/* 支持页 */
.page-head { background: var(--surface); border-bottom: 1px solid var(--line); padding-block: 3rem; text-align: center; }
.page-head .kicker { margin-bottom: 0.5rem; }
.page-head h1 { margin: 0 0 0.5rem; font-size: clamp(1.7rem, 3.4vw, 2.3rem); }
.page-head p { margin: 0; color: var(--muted); }
.faq { max-width: 760px; margin-inline: auto; }
.faq-group { margin-top: 2.4rem; }
.faq-group:first-child { margin-top: 0; }
.faq-group-h {
  font-size: 1rem; letter-spacing: 0.05em; color: var(--violet-deep);
  text-transform: uppercase; margin: 0 0 0.4rem;
}
.faq-item { border-top: 1px solid var(--line); }
.faq-item:last-of-type { border-bottom: 1px solid var(--line); }
.faq-item summary {
  list-style: none; cursor: pointer; font-weight: 600; color: var(--ink);
  padding: 1.05rem 2.2rem 1.05rem 0; position: relative; font-size: 1rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+"; position: absolute; right: 0.4rem; top: 50%; transform: translateY(-50%);
  font-size: 1.25rem; font-weight: 400; color: var(--muted); transition: transform 0.18s ease;
}
.faq-item[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq-item p { margin: 0 0 1.1rem; padding-right: 2.2rem; color: var(--ink-soft); font-size: 0.96rem; }

/* 联系表单 */
.contact { max-width: 640px; margin-inline: auto; padding: 3.4rem 1.25rem 4.5rem; }
.contact h2 { text-align: center; font-size: clamp(1.5rem, 3vw, 1.9rem); margin: 0 0 0.5rem; }
.contact > p { text-align: center; color: var(--muted); margin: 0 0 2rem; }
.contact-form { display: grid; gap: 1.1rem; }
.field { display: grid; gap: 0.4rem; }
.field-label { font-size: 0.9rem; font-weight: 600; color: var(--ink-soft); }
.field input, .field textarea {
  font: inherit; color: var(--ink); background: var(--surface);
  border: 1px solid var(--line); border-radius: 10px; padding: 0.75rem 0.9rem;
  width: 100%; resize: vertical;
}
.field input:focus, .field textarea:focus {
  outline: 2px solid var(--violet); outline-offset: 1px; border-color: var(--violet);
}
.form-actions { display: flex; align-items: center; gap: 1.2rem; flex-wrap: wrap; }
.form-hint { margin: 0; font-size: 0.85rem; color: var(--muted); }
.form-hint a { color: var(--violet-deep); font-weight: 600; }

/* 隐私政策正文 */
.article { max-width: 760px; margin-inline: auto; }
.article .lead { color: var(--ink); }
.article h2 { font-size: 1.25rem; margin: 2.4rem 0 0.8rem; padding-top: 2.4rem; border-top: 1px solid var(--line); }
.article h2:first-of-type { border-top: 0; padding-top: 0; margin-top: 1.2rem; }
.article p, .article li { color: var(--ink-soft); font-size: 0.98rem; }
.article ul { padding-left: 1.3rem; margin: 0.6rem 0; }
.article li { margin-bottom: 0.4rem; }
.article a { color: var(--violet-deep); font-weight: 600; text-decoration: none; }
.article a:hover { text-decoration: underline; }
.article .meta { color: var(--muted); font-size: 0.9rem; margin-top: 2.4rem; }

/* 响应式 */
@media (max-width: 860px) {
  .cards, .steps-list { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
  .cards, .steps-list, .hi-list { grid-template-columns: 1fr; }
  .header-row { gap: 0.8rem; }
  .site-nav { order: 3; width: 100%; margin-left: 0; }
  .hero { padding-block: 4rem; }
  .section { padding-block: 3rem; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}