:root {
  --brand: #2f6bff;
  --brand-dark: #1f4fd8;
  --brand-soft: #eef3ff;
  --ink: #0b0e14;
  --ink-2: #1f2430;
  --ink-3: #4b5563;
  --ink-4: #6b7280;
  --ink-5: #9ca3af;
  --line: #e7e9ee;
  --line-2: #eef0f4;
  --bg: #ffffff;
  --bg-sub: #f7f8fa;
  --ok: #0f9d58;
  --warn: #d97706;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .05);
  --shadow: 0 10px 30px -12px rgba(15, 23, 42, .18);
  --shadow-lg: 0 30px 70px -30px rgba(15, 23, 42, .35);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 15px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4, h5 { margin: 0; font-weight: 600; letter-spacing: -.02em; }
p { margin: 0; }
code {
  font-family: var(--mono);
  font-size: .92em;
  background: #f1f3f7;
  border-radius: 5px;
  padding: 1px 5px;
  color: #2b3446;
}
::selection { background: rgba(47, 107, 255, .18); }

/* ---------------- 按钮 ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  height: 38px;
  padding: 0 16px;
  border-radius: 9px;
  border: 1px solid transparent;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: background .16s, border-color .16s, transform .12s, box-shadow .16s;
  font-family: inherit;
}
.btn:active { transform: translateY(.5px); }
.btn-lg { height: 46px; padding: 0 22px; font-size: 14.5px; border-radius: 11px; }
.btn-block { width: 100%; }
.btn-primary {
  background: var(--brand);
  color: #fff;
  box-shadow: 0 6px 18px -8px rgba(47, 107, 255, .8);
}
.btn-primary:hover { background: var(--brand-dark); }
.btn-outline { border-color: #d9dde6; color: var(--ink-2); background: #fff; }
.btn-outline:hover { border-color: #c2c8d4; background: #fbfcfe; }
.btn-ghost { color: var(--ink-3); }
.btn-ghost:hover { background: var(--bg-sub); }
.btn-light { background: #fff; color: var(--ink); }
.btn-light:hover { background: #eef2ff; }
.btn:disabled { opacity: .6; cursor: not-allowed; }

/* ---------------- 导航 ---------------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, .82);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s, box-shadow .2s;
}
.nav.scrolled { border-bottom-color: var(--line); box-shadow: 0 1px 12px rgba(15, 23, 42, .04); }
.nav-inner {
  max-width: 1180px;
  margin: 0 auto;
  height: 64px;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 28px;
}
.brand { display: flex; align-items: center; gap: 9px; }
.brand-mark {
  width: 30px; height: 30px;
  border-radius: 8px;
  background: linear-gradient(145deg, #4b83ff, #2456e0);
  color: #fff;
  display: grid; place-items: center;
  font-weight: 700; font-size: 13px;
  box-shadow: 0 3px 10px rgba(47, 107, 255, .4);
}
.brand-name { font-size: 14.5px; font-weight: 650; letter-spacing: .01em; }
.brand-name span { color: var(--ink-5); font-weight: 500; margin-left: 5px; font-size: 12.5px; }
.nav-links { display: flex; align-items: center; gap: 4px; margin-left: 6px; }
.nav-links a {
  padding: 7px 11px;
  border-radius: 7px;
  font-size: 13.5px;
  color: var(--ink-3);
  transition: color .15s, background .15s;
}
.nav-links a:hover { color: var(--ink); background: var(--bg-sub); }
.nav-actions { margin-left: auto; display: flex; align-items: center; gap: 6px; }

/* ---------------- Hero ---------------- */
.hero {
  position: relative;
  overflow: hidden;
  background: #0b0e14;
  color: #fff;
  padding: 68px 0 78px;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 20%, transparent 75%);
  pointer-events: none;
}
.hero-glow {
  position: absolute;
  width: 900px; height: 560px;
  top: -240px; left: 50%;
  transform: translateX(-30%);
  background: radial-gradient(ellipse, rgba(47, 107, 255, .42), transparent 62%);
  filter: blur(30px);
  pointer-events: none;
}
.hero-grid {
  position: relative;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: 44px;
  align-items: center;
}
.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 28px;
  padding: 0 12px;
  border-radius: 20px;
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .1);
  font-size: 12px;
  color: rgba(255, 255, 255, .72);
  letter-spacing: .01em;
}
.pill .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: #35d07f;
  box-shadow: 0 0 0 3px rgba(53, 208, 127, .16);
}
.hero h1 {
  margin: 22px 0 0;
  font-size: clamp(38px, 4.2vw, 56px);
  line-height: 1.16;
  font-weight: 620;
  letter-spacing: -.03em;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(100deg, #6f9bff, #b9d0ff 72%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lead {
  margin-top: 20px;
  max-width: 470px;
  font-size: 15.5px;
  line-height: 1.78;
  color: rgba(255, 255, 255, .58);
}
.hero-cta { margin-top: 30px; display: flex; gap: 12px; flex-wrap: wrap; }
.hero .btn-outline {
  background: rgba(255, 255, 255, .04);
  border-color: rgba(255, 255, 255, .16);
  color: rgba(255, 255, 255, .9);
}
.hero .btn-outline:hover { background: rgba(255, 255, 255, .09); }
.hero .btn-ghost { color: rgba(255, 255, 255, .7); }
.hero-meta {
  margin-top: 40px;
  display: flex;
  gap: 38px;
  flex-wrap: wrap;
}
.hero-meta div { display: flex; flex-direction: column; gap: 1px; }
.hero-meta b { font-size: 17px; font-weight: 600; letter-spacing: -.01em; }
.hero-meta span { font-size: 11.5px; color: rgba(255, 255, 255, .44); margin-top: 2px; }

/* ---------------- 产品界面示意 ---------------- */
.hero-shot { position: relative; }
.shot {
  border-radius: 14px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 50px 100px -40px rgba(0, 0, 0, .75), 0 0 0 1px rgba(255, 255, 255, .08);
  transform: perspective(1600px) rotateY(-7deg) rotateX(2deg) translateZ(0);
  transform-origin: left center;
  color: var(--ink);
}
.shot-bar {
  height: 34px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 12px;
  background: #f4f5f8;
  border-bottom: 1px solid #e6e8ee;
}
.shot-bar .dots { display: flex; gap: 5px; }
.shot-bar .dots i { width: 8px; height: 8px; border-radius: 50%; background: #d7dae2; }
.shot-bar .dots i:first-child { background: #f0b8b4; }
.shot-bar .dots i:nth-child(2) { background: #f3d9a4; }
.shot-bar .dots i:nth-child(3) { background: #b8dfc2; }
.shot-url {
  flex: 1;
  text-align: center;
  font: 11px var(--mono);
  color: #98a0ae;
  background: #fff;
  border-radius: 5px;
  padding: 2px 8px;
  max-width: 250px;
  margin: 0 auto;
}
.shot-body { display: flex; min-height: 336px; }
.shot-side {
  width: 118px;
  flex: 0 0 118px;
  background: #fbfbfd;
  border-right: 1px solid #edeff4;
  padding: 10px 8px;
}
.shot-logo {
  display: flex; align-items: center; gap: 5px;
  font-size: 10.5px; font-weight: 600; color: #2b3342;
  padding: 3px 5px 11px;
}
.shot-logo span {
  width: 15px; height: 15px; border-radius: 4px;
  background: var(--brand); color: #fff;
  display: grid; place-items: center; font-size: 8px;
}
.shot-nav {
  font-size: 11px;
  color: #7c8494;
  padding: 5px 7px;
  border-radius: 5px;
  margin-bottom: 1px;
}
.shot-nav.on { background: #eef2fe; color: #2f6bff; font-weight: 600; }
.shot-main { flex: 1; padding: 14px 15px; min-width: 0; }
.shot-head { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 11px; }
.shot-head h4 { font-size: 13px; color: #1a2130; }
.shot-head span { font-size: 10.5px; color: #98a0ae; }
.shot-tag {
  font-size: 9.5px; color: #2f6bff; background: #eef2fe;
  border-radius: 20px; padding: 2px 8px;
}
.shot-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.col-t {
  font-size: 10.5px; color: #8b93a1; margin-bottom: 6px;
  display: flex; align-items: center; gap: 4px;
}
.col-t i { font-style: normal; color: #b6bcc8; }
.card {
  background: #fff;
  border: 1px solid #e8eaf0;
  border-radius: 7px;
  padding: 8px 9px;
  margin-bottom: 6px;
  box-shadow: 0 1px 2px rgba(15, 23, 42, .035);
}
.card b { display: block; font-size: 11px; font-weight: 600; color: #232a38; margin-bottom: 1px; }
.card span { display: block; font-size: 9.8px; color: #98a0ae; }
.card.hot { border-color: #cfdcff; box-shadow: 0 0 0 2px rgba(47, 107, 255, .07); }
.card .bar { height: 3px; background: #eef0f4; border-radius: 2px; margin-top: 6px; overflow: hidden; }
.card .bar i { display: block; height: 100%; background: #4b83ff; border-radius: 2px; }
.chips { display: flex; flex-wrap: wrap; gap: 3px; margin-top: 5px; }
.chips em {
  font-style: normal; font-size: 9px; padding: 1px 5px;
  border-radius: 4px; background: #fff4e5; color: #b45309;
}
.chips.ok em { background: #e9f7ef; color: #0f9d58; }
.shot-foot {
  margin-top: 11px;
  padding-top: 10px;
  border-top: 1px dashed #e8eaf0;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 10.5px;
  color: #6b7280;
}
.shot-foot .ok { color: #0f9d58; font-weight: 600; }
.shot-badge {
  position: absolute;
  right: -12px;
  bottom: -18px;
  display: flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  color: #1f2430;
  font-size: 12px;
  font-weight: 500;
  padding: 9px 14px;
  border-radius: 10px;
  box-shadow: var(--shadow-lg);
}
.shot-badge .pulse {
  width: 7px; height: 7px; border-radius: 50%;
  background: #2f6bff;
  box-shadow: 0 0 0 4px rgba(47, 107, 255, .14);
}

/* ---------------- 区块标题 ---------------- */
.sec-head {
  max-width: 700px;
  margin: 0 auto 44px;
  text-align: center;
}
.kicker {
  display: inline-block;
  font-size: 11.5px;
  font-weight: 650;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--brand);
  margin-bottom: 12px;
}
.kicker.light { color: #8fb2ff; }
.sec-head h2 { font-size: clamp(26px, 2.7vw, 34px); line-height: 1.28; letter-spacing: -.025em; }
.sec-head p { margin-top: 12px; font-size: 14.5px; line-height: 1.75; color: var(--ink-4); }

/* ---------------- 对比 ---------------- */
.compare { padding: 84px 0 24px; }
.compare-grid {
  max-width: 940px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.cmp-card {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 26px 26px 24px;
  background: #fff;
  display: flex;
  flex-direction: column;
  transition: border-color .2s, box-shadow .2s, transform .2s;
}
.cmp-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.cmp-card.feature {
  border-color: #cfdaff;
  background: linear-gradient(180deg, #f8faff, #fff 40%);
  box-shadow: 0 20px 46px -28px rgba(47, 107, 255, .45);
}
.cmp-top { display: flex; gap: 13px; align-items: flex-start; margin-bottom: 20px; }
.cmp-top .ico {
  width: 38px; height: 38px; flex: 0 0 38px;
  border-radius: 10px;
  display: grid; place-items: center;
  background: var(--bg-sub);
  border: 1px solid var(--line);
  font-size: 15px;
  color: var(--ink-3);
}
.cmp-card.feature .ico {
  background: #eaf0ff;
  border-color: #d3e0ff;
  color: var(--brand);
}
.cmp-top h3 { font-size: 16px; margin-bottom: 3px; }
.cmp-top p { font-size: 12.5px; color: var(--ink-4); }
.cmp-card ul { list-style: none; padding: 0; margin: 0 0 24px; display: flex; flex-direction: column; gap: 10px; }
.cmp-card li {
  position: relative;
  padding-left: 24px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--ink-3);
}
.cmp-card li::before {
  content: "";
  position: absolute;
  left: 4px; top: 8px;
  width: 10px; height: 6px;
  border-left: 1.6px solid #b9c0cd;
  border-bottom: 1.6px solid #b9c0cd;
  transform: rotate(-45deg);
}
.cmp-card.feature li::before { border-color: var(--brand); }
.cmp-card li b { color: var(--brand); }
.cmp-card .btn { margin-top: auto; }
.compare-note {
  max-width: 760px;
  margin: 32px auto 0;
  padding: 0 24px;
  text-align: center;
  font-size: 13px;
  line-height: 1.8;
  color: var(--ink-5);
}

/* 社区版 vs 商业版 · 功能对比表 */
.cmp-matrix {
  max-width: 940px;
  margin: 46px auto 0;
  padding: 0 24px;
}
.cmp-matrix .sec-sub { text-align: center; margin-bottom: 22px; }
.cmp-matrix .sec-sub h3 { font-size: 19px; letter-spacing: -.02em; color: var(--ink); }
.cmp-matrix .sec-sub p { margin-top: 8px; font-size: 13.5px; color: var(--ink-4); }
.cmp-table-wrap {
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow-x: auto;
  background: #fff;
  box-shadow: 0 18px 40px -30px rgba(15, 23, 42, .25);
}
.cmp-table { width: 100%; border-collapse: collapse; font-size: 13.5px; min-width: 520px; }
.cmp-table th, .cmp-table td {
  padding: 13px 18px;
  text-align: left;
  border-bottom: 1px solid var(--line-2);
  white-space: nowrap;
}
.cmp-table thead th {
  background: var(--bg-sub);
  font-size: 13px;
  color: var(--ink-2);
  font-weight: 600;
  letter-spacing: .02em;
}
.cmp-table thead th:first-child { width: 42%; }
.cmp-table tbody tr:last-child td { border-bottom: 0; }
.cmp-table tbody tr:nth-child(even) { background: #fafbfc; }
.cmp-table td:first-child { color: var(--ink-2); font-weight: 500; white-space: normal; }
.cmp-table th.hot, .cmp-table td.hot {
  background: linear-gradient(180deg, #f6f9ff, #fff 70%);
}
.cmp-table thead th.hot { color: var(--brand); }
.cmp-yes { color: var(--ok); font-weight: 700; }
.cmp-no { color: var(--ink-5); }
.cmp-table td.hot .cmp-yes { color: var(--brand); }
.cmp-tag { font-size: 11px; padding: 2px 8px; border-radius: 999px; margin-left: 6px; }
.cmp-tag.free { background: #eef3ff; color: var(--brand); }
.cmp-tag.pay { background: #fff1e6; color: #c2560b; }

/* ---------------- 能力 ---------------- */
.features { padding: 96px 0; background: var(--bg-sub); }
.feat-grid {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
}
.feat {
  background: #fff;
  padding: 28px 26px 30px;
  transition: background .2s;
}
.feat:hover { background: #fcfdff; }
.feat-ico {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: var(--brand-soft);
  color: var(--brand);
  display: grid; place-items: center;
  margin-bottom: 16px;
}
.feat-ico svg { width: 19px; height: 19px; }
.feat h4 { font-size: 14.5px; margin-bottom: 7px; }
.feat p { font-size: 13px; line-height: 1.72; color: var(--ink-4); }

/* ---------------- 流程 ---------------- */
.flow { padding: 96px 0; }
.flow-list {
  list-style: none;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  position: relative;
}
.flow-list::before {
  content: "";
  position: absolute;
  top: 18px;
  left: 52px;
  right: 52px;
  height: 1px;
  background: repeating-linear-gradient(90deg, #d8dde7 0 6px, transparent 6px 12px);
}
.flow-list li { position: relative; padding-right: 14px; }
.flow-list .n {
  display: grid; place-items: center;
  width: 36px; height: 36px;
  border-radius: 50%;
  background: #fff;
  border: 1px solid var(--line);
  font: 600 11.5px var(--mono);
  color: var(--brand);
  margin-bottom: 18px;
  position: relative;
  z-index: 1;
}
.flow-list b { display: block; font-size: 14.5px; margin-bottom: 6px; }
.flow-list p { font-size: 12.5px; line-height: 1.7; color: var(--ink-4); }

/* ---------------- 下载 ---------------- */
.download {
  background: #0b0e14;
  color: #fff;
  padding: 78px 0;
  position: relative;
  overflow: hidden;
}
.download::before {
  content: "";
  position: absolute;
  width: 720px; height: 720px;
  right: -220px; top: -320px;
  background: radial-gradient(circle, rgba(47, 107, 255, .34), transparent 62%);
  filter: blur(24px);
}
.download-inner {
  position: relative;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1.06fr .94fr;
  gap: 56px;
  align-items: center;
}
.dl-copy h2 { font-size: clamp(26px, 2.8vw, 34px); line-height: 1.3; margin: 10px 0 14px; letter-spacing: -.025em; }
.dl-copy > p { font-size: 14px; line-height: 1.8; color: rgba(255, 255, 255, .56); max-width: 460px; }
.dl-copy code { background: rgba(255, 255, 255, .1); color: #dbe6ff; }
.dl-steps { margin: 26px 0 30px; display: flex; flex-direction: column; gap: 12px; }
.dl-steps div {
  display: flex; align-items: center; gap: 10px;
  font-size: 13.5px; color: rgba(255, 255, 255, .74);
}
.dl-steps span {
  width: 20px; height: 20px; flex: 0 0 20px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .14);
  display: grid; place-items: center;
  font-size: 10.5px; color: #a9c3ff;
}
.dl-card {
  background: rgba(255, 255, 255, .04);
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: 16px;
  padding: 22px 22px 18px;
  backdrop-filter: blur(8px);
}
.dl-card-head {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 12px; color: rgba(255, 255, 255, .46);
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.dl-ver { font: 600 13px var(--mono); color: #fff; }
.dl-meta {
  display: flex; flex-wrap: wrap; gap: 8px;
  padding: 16px 0 12px;
}
.dl-meta span {
  font-size: 11px; color: rgba(255, 255, 255, .5);
  background: rgba(255, 255, 255, .06);
  border-radius: 5px; padding: 3px 8px;
}
.dl-notes {
  font-size: 12.5px;
  line-height: 1.8;
  color: rgba(255, 255, 255, .56);
  max-height: 132px;
  overflow: auto;
  margin-bottom: 18px;
  white-space: pre-wrap;
}
.dl-card .btn-primary { box-shadow: 0 10px 24px -14px rgba(47, 107, 255, 1); }
.dl-hint { margin-top: 10px; text-align: center; font-size: 11px; color: rgba(255, 255, 255, .48); }
.dl-empty { font-size: 12.5px; color: rgba(255, 255, 255, .45); padding: 8px 0 14px; }

/* ---------------- FAQ ---------------- */
.faq { padding: 96px 0; }
.faq-list { max-width: 800px; margin: 0 auto; padding: 0 24px; }
.faq-list details {
  border-bottom: 1px solid var(--line-2);
  padding: 18px 0;
}
.faq-list details[open] { padding-bottom: 20px; }
.faq-list summary {
  list-style: none;
  cursor: pointer;
  font-size: 14.5px;
  font-weight: 550;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: "+";
  font-size: 18px;
  font-weight: 400;
  color: var(--ink-5);
  flex: 0 0 auto;
  transition: transform .18s;
}
.faq-list details[open] summary::after { transform: rotate(45deg); }
.faq-list p { margin-top: 10px; font-size: 13.5px; line-height: 1.8; color: var(--ink-4); }

/* ---------------- Footer ---------------- */
.foot { border-top: 1px solid var(--line-2); background: #fcfcfd; padding: 52px 0 26px; }
.foot-inner {
  max-width: 1080px; margin: 0 auto; padding: 0 24px;
  display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap;
}
.foot-brand { display: flex; gap: 11px; align-items: flex-start; }
.foot-brand b { font-size: 13.5px; }
.foot-brand p { font-size: 12.5px; color: var(--ink-5); margin-top: 3px; }
.foot-links { display: flex; gap: 64px; }
.foot-links h5 { font-size: 12px; color: var(--ink); margin-bottom: 12px; }
.foot-links a { display: block; font-size: 12.5px; color: var(--ink-4); margin-bottom: 9px; }
.foot-links a:hover { color: var(--brand); }
.foot-bottom {
  max-width: 1080px; margin: 40px auto 0; padding: 18px 24px 0;
  border-top: 1px solid var(--line-2);
  display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap;
  font-size: 11.5px; color: var(--ink-5);
}

/* ---------------- 在线测试 ---------------- */
.demo {
  padding: 88px 0;
  background: linear-gradient(180deg, #ffffff 0%, #f6f8fc 100%);
  border-top: 1px solid var(--line-2);
}
.demo-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 56px;
  align-items: center;
}
.demo-copy h2 {
  font-size: clamp(24px, 2.6vw, 32px);
  line-height: 1.32;
  margin: 10px 0 14px;
  letter-spacing: -.025em;
}
.demo-copy > p { font-size: 14px; line-height: 1.8; color: var(--ink-3); max-width: 470px; }
.try-list { list-style: none; margin: 24px 0 26px; padding: 0; display: grid; gap: 13px; }
.try-list li { position: relative; padding-left: 25px; }
.try-list li::before {
  content: "";
  position: absolute; left: 0; top: 5px;
  width: 15px; height: 15px; border-radius: 50%;
  background: #e8efff; border: 1px solid #c9d9ff;
}
.try-list li::after {
  content: "";
  position: absolute; left: 4.5px; top: 8px;
  width: 5px; height: 3px;
  border-left: 1.6px solid var(--brand);
  border-bottom: 1.6px solid var(--brand);
  transform: rotate(-45deg);
}
.try-list b { display: block; font-size: 14px; margin-bottom: 1px; }
.try-list span { font-size: 12.5px; line-height: 1.6; color: var(--ink-4); }
.demo-cta { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.demo-note { font-size: 11.5px; color: var(--ink-5); }
.demo-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px 24px 18px;
  box-shadow: var(--shadow);
}
.dc-head {
  display: flex; align-items: center; gap: 8px;
  padding-bottom: 14px; border-bottom: 1px solid var(--line-2);
  font-size: 12px; font-weight: 600; color: var(--ink-3);
}
.dc-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 3px rgba(15, 157, 88, .13); }
.dc-rows { margin: 0; padding: 8px 0 4px; }
.dc-rows div {
  display: flex; justify-content: space-between; gap: 18px;
  padding: 8px 0; border-bottom: 1px dashed var(--line-2);
  font-size: 12.5px;
}
.dc-rows div:last-child { border-bottom: 0; }
.dc-rows dt { color: var(--ink-4); flex: 0 0 auto; }
.dc-rows dd { margin: 0; color: var(--ink-2); font-weight: 500; text-align: right; }
.dc-foot {
  margin-top: 10px; padding-top: 12px;
  border-top: 1px solid var(--line-2);
  font-size: 11.5px; line-height: 1.7; color: var(--ink-5);
}
.btn.is-off { opacity: .55; pointer-events: none; }

/* ---------------- 响应式 ---------------- */
@media (max-width: 1000px) {
  .hero-grid { grid-template-columns: 1fr; gap: 52px; }
  .hero { padding: 56px 0 72px; }
  .shot { transform: none; }
  .shot-badge { right: 8px; bottom: -14px; }
  .feat-grid { grid-template-columns: repeat(2, 1fr); }
  .flow-list { grid-template-columns: repeat(2, 1fr); gap: 28px 0; }
  .flow-list::before { display: none; }
  .download-inner { grid-template-columns: 1fr; gap: 40px; }
  .demo-inner { grid-template-columns: 1fr; gap: 36px; }
  .demo { padding: 64px 0; }
  .compare-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
}
@media (max-width: 640px) {
  .nav-inner { padding: 0 16px; gap: 12px; }
  .nav-actions .btn-ghost { display: none; }
  .hero-grid, .compare-grid, .feat-grid, .flow-list, .download-inner, .faq-list, .foot-inner, .demo-inner { padding: 0 18px; }
  .feat-grid { grid-template-columns: 1fr; }
  .flow-list { grid-template-columns: 1fr; }
  .hero-meta { gap: 22px; }
  .hero-meta b { font-size: 15px; }
  .shot-side { display: none; }
  .shot-cols { grid-template-columns: 1fr 1fr; }
  .shot-cols .col:nth-child(3) { display: none; }
  .shot-main { padding: 12px 12px 14px; }
  .card b { font-size: 10.5px; }
  .shot-badge { position: static; margin-top: 12px; justify-content: center; }
  .foot-links { gap: 36px; }
  .sec-head { margin-bottom: 32px; }
  .compare, .features, .flow, .download, .faq, .demo { padding: 64px 0; }
  .demo-cta { gap: 10px; }
  .demo-cta .btn { width: 100%; }
}

/* ---------------- Hero 试用提示 ---------------- */
.hero-trial {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  padding: 7px 13px 7px 8px;
  border: 1px solid rgba(255, 255, 255, .14);
  background: rgba(255, 255, 255, .045);
  border-radius: 10px;
  font-size: 13px;
  line-height: 1.5;
  color: #c3cddf;
}
.hero-trial b { color: #fff; font-weight: 600; }
.hero-trial .t {
  display: inline-flex;
  align-items: center;
  height: 20px;
  padding: 0 7px;
  border-radius: 5px;
  background: rgba(47, 107, 255, .24);
  color: #96b6ff;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .02em;
}

.empty {
  padding: 48px 0;
  text-align: center;
  color: #9ca3af;
  font-size: 14px;
}