/* 逐件 Itemwise 官网样式 —— 简洁克制，蓝色主色，浅/深色自适应 */
:root {
  --blue: #1f6bff;
  --blue-soft: #e8f0ff;
  --bg: #f6f8fc;
  --card: #ffffff;
  --text: #17233d;
  --muted: #5b6b85;
  --line: #e3e9f2;
  --shadow: 0 10px 30px rgba(23, 51, 110, 0.08);
}
@media (prefers-color-scheme: dark) {
  :root {
    --blue: #5b93ff;
    --blue-soft: #16233c;
    --bg: #0b0f17;
    --card: #131a26;
    --text: #e8edf5;
    --muted: #94a3bc;
    --line: #232d40;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  }
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  background: var(--bg); color: var(--text);
  line-height: 1.7; font-size: 16px;
}
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 1000px; margin: 0 auto; padding: 0 20px; }

/* 顶栏 */
header.site {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 56px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand svg { width: 28px; height: 28px; border-radius: 7px; display: block; }
.brand .en { color: var(--muted); font-weight: 500; font-size: 14px; }
.nav nav { display: flex; gap: 22px; font-size: 15px; }
.nav nav a { color: var(--muted); }
.nav nav a:hover { color: var(--text); text-decoration: none; }

/* 首页 hero */
.hero { padding: 72px 0 40px; text-align: center; }
.hero h1 { font-size: clamp(30px, 6vw, 46px); line-height: 1.25; letter-spacing: 0.5px; }
.hero p.sub { margin: 18px auto 0; max-width: 560px; color: var(--muted); font-size: 17px; }
.cta-row { margin-top: 30px; display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.store-note {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid var(--line); background: var(--card);
  color: var(--muted); border-radius: 999px; padding: 10px 20px; font-size: 15px;
}
.store-note .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--blue); }

/* 步骤 */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin: 56px 0 0; }
.step { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 18px 16px; text-align: left; }
.step .no { color: var(--blue); font-weight: 700; font-size: 13px; letter-spacing: 1px; }
.step h3 { font-size: 16px; margin: 6px 0 4px; }
.step p { color: var(--muted); font-size: 14px; line-height: 1.6; }

/* 区块 */
section.block { padding: 56px 0; }
section.block h2 { font-size: clamp(22px, 4vw, 30px); text-align: center; }
section.block > .wrap > p.lead { text-align: center; color: var(--muted); margin: 12px auto 0; max-width: 620px; }

/* 功能网格 */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 36px; }
.feature { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 22px; box-shadow: var(--shadow); }
.feature .ico { width: 40px; height: 40px; border-radius: 10px; background: var(--blue-soft); display: flex; align-items: center; justify-content: center; margin-bottom: 12px; }
.feature .ico svg { width: 22px; height: 22px; stroke: var(--blue); fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.feature h3 { font-size: 16px; margin-bottom: 6px; }
.feature p { color: var(--muted); font-size: 14.5px; }

/* 界面示意 */
.mocks { display: flex; gap: 28px; justify-content: center; flex-wrap: wrap; margin-top: 40px; }
.mock-col { text-align: center; }
.phone {
  width: 250px; height: 520px; border-radius: 34px; margin: 0 auto;
  background: #0d1117; border: 6px solid #2a2f3a; overflow: hidden;
  box-shadow: var(--shadow); text-align: left; position: relative;
  color: #e8edf5; font-size: 11px;
}
.mock-note { margin-top: 12px; color: var(--muted); font-size: 13px; }
.p-status { display: flex; justify-content: space-between; padding: 10px 16px 4px; color: #9aa7bd; font-size: 10px; }
.p-home-h { padding: 10px 16px 0; }
.p-home-h .slogan { color: #7d8aa3; font-size: 9px; }
.p-home-h .big { font-size: 20px; font-weight: 700; margin-top: 2px; }
.p-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; padding: 12px 14px 0; }
.p-card { border-radius: 12px; padding: 10px; min-height: 64px; }
.p-card .n { font-size: 17px; font-weight: 700; text-align: right; }
.p-card .t { margin-top: 14px; font-size: 11px; }
.p-card.c-blue { background: #2456b8; }
.p-card.c-red { background: #a04a41; }
.p-card.c-dark { background: #1b2230; border: 1px solid #2a3346; }
.p-seg { display: flex; background: #1b2230; border-radius: 999px; margin: 12px 14px 0; padding: 3px; }
.p-seg span { flex: 1; text-align: center; padding: 6px 0; border-radius: 999px; color: #9aa7bd; }
.p-seg span.on { background: #2a3346; color: #fff; }
.p-sec { padding: 14px 16px 4px; display: flex; justify-content: space-between; }
.p-sec .r { color: #7d8aa3; font-size: 9px; }
.p-empty { margin: 10px 14px; background: #161d2b; border-radius: 14px; padding: 26px 14px; text-align: center; color: #9aa7bd; }
.p-empty .box { width: 30px; height: 24px; border: 2px solid #3a4560; border-radius: 6px; margin: 0 auto 10px; position: relative; }
.p-empty .box::after { content: ""; position: absolute; top: -6px; left: 4px; right: 4px; height: 6px; border: 2px solid #3a4560; border-bottom: none; border-radius: 6px 6px 0 0; }
.p-dock { position: absolute; left: 10px; right: 10px; bottom: 10px; background: #1b2230; border-radius: 18px; display: flex; padding: 8px 4px; }
.p-dock span { flex: 1; text-align: center; color: #8d9ab2; font-size: 9px; }
.p-dock span.on { color: #5b93ff; }
.p-dock i { display: block; width: 16px; height: 16px; margin: 0 auto 3px; border: 1.6px solid currentColor; border-radius: 4px; }
/* 整理页示意 */
.p-review-h { padding: 12px 16px 0; display: flex; justify-content: space-between; align-items: center; }
.p-review-h .t { font-weight: 700; font-size: 14px; }
.p-review-h .x { color: #7d8aa3; font-size: 13px; }
.p-orig { margin: 10px 14px 0; background: #161d2b; border-radius: 10px; padding: 10px; color: #aab6cc; }
.p-ai-tag { display: inline-block; margin: 12px 14px 0; color: #5b93ff; font-size: 9px; border: 1px solid #2c4a86; border-radius: 999px; padding: 2px 8px; }
.p-task { margin: 8px 14px 0; background: #1b2230; border-radius: 10px; padding: 9px 10px; }
.p-task .tt { font-weight: 600; }
.p-task .dd { color: #8d9ab2; margin-top: 2px; font-size: 10px; }
.p-task .warn { color: #d9a441; font-size: 9px; margin-top: 3px; }
.p-save { margin: 12px 14px 0; background: #2456b8; color: #fff; text-align: center; border-radius: 999px; padding: 9px 0; font-weight: 600; }

/* 说明条 */
.note {
  margin: 26px auto 0; max-width: 720px; background: var(--blue-soft);
  border-radius: 12px; padding: 14px 18px; color: var(--muted); font-size: 14px; line-height: 1.8;
}

/* 文档页（隐私/支持） */
.doc { padding: 48px 0 72px; }
.doc .page-h { margin-bottom: 8px; }
.doc h1 { font-size: clamp(26px, 5vw, 36px); }
.doc .updated { color: var(--muted); font-size: 14px; margin-bottom: 28px; }
.doc .banner {
  background: var(--blue-soft); border-radius: 12px; padding: 14px 18px;
  color: var(--muted); font-size: 14.5px; margin-bottom: 32px; line-height: 1.8;
}
.doc h2 { font-size: 20px; margin: 36px 0 12px; }
.doc h3 { font-size: 16px; margin: 22px 0 8px; }
.doc p, .doc li { color: var(--muted); font-size: 15.5px; }
.doc p { margin-bottom: 12px; }
.doc ul, .doc ol { padding-left: 22px; margin-bottom: 14px; }
.doc li { margin-bottom: 6px; }
.doc strong { color: var(--text); font-weight: 600; }
.doc table { width: 100%; border-collapse: collapse; margin: 14px 0 20px; font-size: 14.5px; }
.doc th, .doc td { border: 1px solid var(--line); padding: 9px 12px; text-align: left; vertical-align: top; }
.doc th { background: var(--card); color: var(--text); font-weight: 600; }
.doc td { color: var(--muted); }

/* FAQ（支持页） */
.faq { margin-top: 30px; }
.faq details { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 16px 20px; margin-bottom: 12px; }
.faq summary { cursor: pointer; font-weight: 600; color: var(--text); font-size: 16px; }
.faq details p { margin-top: 10px; }

/* 页脚 */
footer.site { border-top: 1px solid var(--line); padding: 32px 0 44px; margin-top: 40px; }
.foot { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.foot .links { display: flex; gap: 20px; font-size: 14.5px; }
.foot .copy { color: var(--muted); font-size: 13.5px; }

/* —— 轻量动效：进入视口淡入上移，尊重「减弱动效」设置 —— */
.js .reveal { opacity: 0; transform: translateY(16px); }
.reveal { transition: opacity .55s cubic-bezier(.22, .61, .36, 1), transform .55s cubic-bezier(.22, .61, .36, 1); will-change: opacity, transform; }
.reveal.in { opacity: 1; transform: none; will-change: auto; }
@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1; transform: none; transition: none; }
}

/* 示例对比：一条消息 → 多条待办 */
.example { display: flex; align-items: stretch; gap: 20px; margin-top: 36px; flex-wrap: wrap; }
.ex-card {
  flex: 1 1 340px; background: var(--card); border: 1px solid var(--line);
  border-radius: 16px; padding: 22px; box-shadow: var(--shadow);
}
.ex-card.ex-out { background: var(--card); }
.ex-head { font-size: 13px; color: var(--blue); font-weight: 600; margin-bottom: 12px; letter-spacing: .3px; }
.ex-text { color: var(--muted); font-size: 15px; line-height: 1.9; }
.ex-text strong { color: var(--text); font-weight: 600; }
.ex-foot { margin-top: 14px; font-size: 12.5px; color: var(--muted); opacity: .8; }
.ex-item { display: flex; gap: 10px; align-items: flex-start; padding: 10px 0; border-bottom: 1px solid var(--line); }
.ex-item:last-of-type { border-bottom: none; }
.ex-item strong { display: block; font-size: 15px; font-weight: 600; }
.ex-item em { display: block; font-style: normal; font-size: 13px; color: var(--muted); margin-top: 2px; }
.ex-tick {
  flex: none; width: 18px; height: 18px; border-radius: 6px; margin-top: 3px;
  border: 2px solid var(--blue); position: relative;
}
.ex-tick::after {
  content: ""; position: absolute; left: 4px; top: 1px; width: 5px; height: 9px;
  border-right: 2px solid var(--blue); border-bottom: 2px solid var(--blue);
  transform: rotate(40deg);
}
.ex-arrow { flex: none; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; color: var(--blue); min-width: 74px; }
.ex-arrow svg { width: 40px; height: 24px; }
.ex-arrow span { font-size: 12px; color: var(--muted); }
.ex-note { margin: 18px auto 0; text-align: center; color: var(--muted); font-size: 13.5px; max-width: 640px; }

/* 不确定就标出来 */
.truths { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 36px; }
.truth { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 22px; box-shadow: var(--shadow); }
.truth-tag {
  display: inline-block; background: var(--blue-soft); color: var(--blue);
  font-size: 12.5px; border-radius: 999px; padding: 3px 12px; margin-bottom: 12px;
}
.truth h3 { font-size: 16px; margin-bottom: 6px; }
.truth p { color: var(--muted); font-size: 14.5px; }

/* 用得放心 */
.pminis { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 34px; }
.pmini { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 18px 20px; }
.pmini strong { display: block; font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.pmini span { color: var(--muted); font-size: 14px; }
.cta-foot { display: flex; gap: 14px; justify-content: center; margin-top: 34px; flex-wrap: wrap; }
.btn {
  display: inline-block; background: var(--blue); color: #fff; border-radius: 999px;
  padding: 12px 28px; font-size: 15px; border: 1px solid var(--blue);
  transition: transform .2s ease, box-shadow .2s ease, background-color .2s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-2px); box-shadow: 0 8px 18px rgba(31, 107, 255, .28); }
.btn-ghost { background: transparent; color: var(--blue); }
.btn-ghost:hover { background: var(--blue-soft); box-shadow: none; }
@media (prefers-reduced-motion: reduce) { .btn { transition: none; } .btn:hover { transform: none; } }

/* 卡片微交互 */
.feature, .truth, .pmini, .step { transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease; }
.feature:hover, .truth:hover, .pmini:hover { transform: translateY(-3px); border-color: color-mix(in srgb, var(--blue) 40%, var(--line)); }
@media (prefers-reduced-motion: reduce) {
  .feature:hover, .truth:hover, .pmini:hover { transform: none; }
}

@media (max-width: 760px) {
  .steps { grid-template-columns: repeat(2, 1fr); }
  .features { grid-template-columns: 1fr; }
  .hero { padding: 52px 0 28px; }
  section.block { padding: 40px 0; }
  .phone { width: 232px; height: 486px; }
  .doc table { display: block; overflow-x: auto; }
  .truths { grid-template-columns: 1fr; }
  .pminis { grid-template-columns: 1fr; }
  .ex-arrow { min-width: 100%; transform: rotate(90deg); padding: 4px 0; }
  .ex-arrow span { display: none; }
  .example { gap: 12px; }
}
@media (max-width: 380px) {
  .steps { grid-template-columns: 1fr; }
}