/* ============================================================
   iPowerClinic — marketing site
   Refined: tighter type, smaller framed screenshots, quieter shadows
   ============================================================ */

:root {
  --ink:        #0d1b2a;
  --ink-2:      #1e3350;
  --body:       #55637a;
  --muted:      #8b98ab;
  --line:       #e4eaf2;
  --line-soft:  #eef2f7;
  --bg-alt:     #f6f8fb;
  --blue:       #1d4ed8;
  --blue-2:     #2563eb;
  --blue-soft:  #eff4ff;
  --navy:       #12233d;
  --green:      #15803d;
  --r:          12px;
  --r-sm:       8px;
  --shadow-1:   0 1px 2px rgba(13, 27, 42, .05);
  --shadow-2:   0 14px 34px rgba(13, 27, 42, .08);
}

body.site {
  background: #fff;
  color: var(--ink);
  font-size: 14.5px;
  line-height: 1.7;
  letter-spacing: -.005em;
}

body.site svg { stroke-width: 1.7; }

.wrap {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ---------- nav ---------- */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, .74);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(13, 27, 42, .06);
  transition: background .35s cubic-bezier(.16, 1, .3, 1),
              border-color .35s cubic-bezier(.16, 1, .3, 1),
              box-shadow .35s cubic-bezier(.16, 1, .3, 1);
}

.site-nav.is-scrolled {
  background: rgba(255, 255, 255, .84);
  border-bottom-color: rgba(13, 27, 42, .1);
  box-shadow: 0 1px 0 rgba(13, 27, 42, .04), 0 10px 30px rgba(13, 27, 42, .07);
}

@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .site-nav { background: rgba(255, 255, 255, .97); }
}

.nav-inner { display: flex; align-items: center; gap: 30px; height: 66px; }

.site-brand { display: flex; align-items: center; gap: 9px; }

.brand-mark {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: linear-gradient(145deg, #2b62e8, #1740b8);
  flex: 0 0 auto;
}

.brand-mark svg { width: 17px; height: 17px; fill: #fff; stroke: none; }

/* 真实 logo（橙色心跳图标）。自带圆角，透明底，深浅背景都适用 */
.brand-logo {
  display: block;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  object-fit: contain;
  flex: 0 0 auto;
}

.site-brand-text { display: flex; flex-direction: column; line-height: 1.05; }

.site-brand-text strong {
  font-size: 14.5px;
  font-weight: 750;
  letter-spacing: -.02em;
  color: var(--ink);
}

.site-brand-text em {
  font-style: normal;
  font-size: 7px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted);
}

.site-links { display: flex; align-items: center; gap: 24px; margin-left: 6px; }

.site-links a {
  font-size: 13px;
  font-weight: 500;
  color: var(--body);
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: color .15s, border-color .15s;
}

.site-links a:hover,
.site-links a.is-current { color: var(--blue); border-color: var(--blue); }

.lang-switch {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: auto;
  padding: 3px;
  background: var(--bg-alt);
  border: 1px solid var(--line-soft);
  border-radius: 999px;
}

.lang-switch a {
  padding: 4px 11px;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.3;
  color: var(--muted);
  border-radius: 999px;
  transition: color .15s, background .15s;
}

.lang-switch a:hover { color: var(--navy); }
.lang-switch a.is-on { color: #fff; background: var(--blue); }

.btn-dark {
  margin-left: 0;
  padding: 10px 18px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: -.01em;
  color: #fff;
  background: var(--navy);
  border-radius: var(--r-sm);
  transition: background .15s;
}

.btn-dark:hover { background: #1a3054; }

/* ---------- buttons ---------- */

.btn-blue,
.btn-ghost,
.btn-light {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: -.01em;
  border-radius: var(--r-sm);
  transition: background .15s, border-color .15s, color .15s;
}

.btn-blue {
  color: #fff;
  background: var(--blue);
  border: 1px solid var(--blue);
  box-shadow: 0 6px 16px rgba(29, 78, 216, .18);
}

.btn-blue:hover { background: #1a45c2; }

.btn-ghost {
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
}

.btn-ghost:hover { border-color: #c3d0e2; background: #fafcff; }

.btn-light {
  color: var(--navy);
  background: #fff;
  border: 1px solid #fff;
}

.btn-light:hover { background: #eef4ff; }

.btn-block { width: 100%; }

/* ---------- framed screenshots ---------- */

.shot,
.page-figure,
.feature-shot,
.shot-card figure,
.stack-shot,
.quad-shot,
.wide-shot,
.add-card figure {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: var(--shadow-1);
  overflow: hidden;
}

.page-figure { height: 236px; }

.split-grid .page-figure { height: 232px; }

.shot img,
.page-figure img,
.feature-shot img,
.shot-card figure img,
.stack-shot img,
.quad-shot img,
.wide-shot img,
.add-card figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top left;
}

/* ---------- hero ---------- */

.hero { padding: 68px 0 56px; }

.hero-grid { display: grid; grid-template-columns: 1.04fr .96fr; gap: 52px; align-items: center; }

.hero-copy h1 {
  margin: 0 0 18px;
  font-size: 38px;
  line-height: 1.22;
  font-weight: 700;
  letter-spacing: -.028em;
  color: var(--blue);
}

.hero-copy p {
  margin: 0 0 26px;
  max-width: 32em;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--body);
}

.hero-cta { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 30px; }

.hero-badges {
  display: flex;
  gap: 10px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.hero-badges li {
  display: flex;
  flex-direction: column;
  gap: 1px;
  padding: 10px 16px;
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
}

.hero-badges strong { font-size: 17px; font-weight: 700; letter-spacing: -.02em; color: var(--ink); }
.hero-badges span { font-size: 9.5px; letter-spacing: 1.1px; text-transform: uppercase; color: var(--muted); }

.hero-visual { position: relative; }

.hero-visual .shot { height: 296px; }

/* ---------- trusted ---------- */

.trusted { padding: 26px 0 30px; background: var(--bg-alt); border-top: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft); }

.trusted-label {
  margin: 0 0 14px;
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 2.2px;
  text-transform: uppercase;
  color: var(--muted);
  text-align: center;
}

.trusted-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 24px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.trusted-row li { font-size: 12.5px; font-weight: 600; color: #b9c4d3; }

/* ---------- bands ---------- */

.band { padding: 64px 0; }

.band-alt { background: var(--bg-alt); border-top: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft); }

.section-title {
  margin: 0 0 10px;
  font-size: 25px;
  line-height: 1.3;
  font-weight: 700;
  letter-spacing: -.022em;
  color: var(--ink);
  text-align: center;
}

.section-lead {
  margin: 0 auto 38px;
  max-width: 40em;
  font-size: 14px;
  line-height: 1.75;
  color: var(--body);
  text-align: center;
}

.eyebrow {
  margin: 0 0 8px;
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 2.2px;
  text-transform: uppercase;
  color: var(--muted);
  text-align: center;
}

.section-more { margin-top: 30px; text-align: center; }

/* split */

.split-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 52px; align-items: center; }
.split-grid-rev > *:first-child { order: 2; }

.split-grid .section-title,
.split-grid .section-lead { text-align: left; margin-left: 0; margin-right: 0; }

.split-grid .section-lead { margin-bottom: 20px; }

/* ---------- why ---------- */

.why-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }

.why-card {
  padding: 24px 22px 22px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r);
  box-shadow: var(--shadow-1);
  transition: border-color .15s, box-shadow .2s;
}

.why-card:hover { border-color: #cfdcee; box-shadow: var(--shadow-2); }

.why-icon {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  margin-bottom: 14px;
  color: var(--blue);
  background: var(--blue-soft);
  border-radius: 9px;
}

.why-icon svg { width: 18px; height: 18px; }

.why-card h3,
.value-card h3 { margin: 0 0 7px; font-size: 14.5px; font-weight: 700; letter-spacing: -.015em; }

.why-card p,
.value-card p { margin: 0; font-size: 13px; line-height: 1.68; color: var(--body); }

/* ---------- stacked shots (centralized) ---------- */

.stack-shots { position: relative; height: 280px; }

.stack-shot { position: absolute; margin: 0; }

.stack-shot-1 { top: 0; left: 0; width: 64%; height: 50%; z-index: 2; }
.stack-shot-2 { top: 24%; right: 0; width: 50%; height: 40%; z-index: 3; }
.stack-shot-3 { bottom: 0; left: 14%; width: 60%; height: 42%; z-index: 1; }

.wide-shot { margin: 0; }

/* ---------- blue band ---------- */

.band-blue {
  background: var(--navy);
  color: #dbe7f5;
}

.band-blue .section-title,
.band-blue .section-title-light,
.band-blue .trial-title { color: #fff; }

.band-blue .trial-body { color: #b9cbe2; }

.trial-inner { max-width: 720px; text-align: center; }

.trial-sub {
  margin: 0 0 8px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 2.2px;
  text-transform: uppercase;
  color: #7ea6dd;
}

.trial-title { margin: 0 0 12px; font-size: 26px; font-weight: 700; letter-spacing: -.022em; }

.trial-body { margin: 0 auto 22px; max-width: 40em; font-size: 14px; line-height: 1.75; }

/* ---------- integration ---------- */

.integration-body { margin: 0 0 20px; font-size: 14px; line-height: 1.75; color: var(--body); }

.partner-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.partner-grid li {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 16px 16px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
}

.partner-grid strong { font-size: 13px; font-weight: 650; color: var(--ink); }
.partner-grid span { font-size: 11px; color: var(--muted); }

/* ---------- power band ---------- */

.power-band {
  padding: 54px 0;
  background: var(--navy);
  background-image: radial-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px);
  background-size: 22px 22px;
  color: #fff;
}

.power-inner { max-width: 720px; text-align: center; }

.power-title {
  margin: 0 0 22px;
  font-size: 23px;
  line-height: 1.42;
  font-weight: 700;
  letter-spacing: -.02em;
  color: #fff;
}

/* ---------- inner page hero ---------- */

.page-hero { padding: 58px 0 44px; }

.page-hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 52px; align-items: center; }

.page-title {
  margin: 0 0 16px;
  font-size: 33px;
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -.026em;
  color: var(--blue);
}

.page-body { margin: 0; max-width: 32em; font-size: 14.5px; line-height: 1.75; color: var(--body); }

.page-hero-grid .page-figure { height: 268px; }

/* ---------- three cards with shots ---------- */

.three-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }

.shot-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r);
  box-shadow: var(--shadow-1);
  overflow: hidden;
  transition: box-shadow .2s;
}

.shot-card:hover { box-shadow: var(--shadow-2); }

.shot-card figure { margin: 0; border: 0; border-bottom: 1px solid var(--line-soft); border-radius: 0; box-shadow: none; }
.shot-card figure img { height: 148px; }

.shot-card-body { padding: 16px 18px 18px; }

.shot-card-body h3 { margin: 0 0 6px; font-size: 13.5px; font-weight: 700; color: var(--blue); }
.shot-card-body p { margin: 0; font-size: 12.5px; line-height: 1.65; color: var(--body); }

/* ---------- testimonials ---------- */

.quote-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 44px; align-items: center; margin-bottom: 34px; }

.quote-grid .page-figure { height: 236px; }

.big-quote {
  margin: 0 0 14px;
  padding: 0;
  border: 0;
  font-size: 19px;
  line-height: 1.5;
  font-weight: 650;
  letter-spacing: -.02em;
  color: var(--blue);
}

.quote-author { margin: 0 0 10px; font-size: 12.5px; font-weight: 600; color: var(--ink); }
.quote-note { margin: 0; font-size: 12.5px; line-height: 1.7; color: var(--body); }

.people-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }

.person-card {
  padding: 18px 16px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r);
}

.person-avatar {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  margin-bottom: 10px;
  font-size: 12px;
  font-weight: 700;
  color: var(--blue);
  background: var(--blue-soft);
  border-radius: 50%;
}

.person-card h4 { margin: 0 0 1px; font-size: 12.5px; font-weight: 700; }
.person-role { margin: 0 0 8px; font-size: 10.5px; color: var(--muted); }
.person-body { margin: 0; font-size: 12px; line-height: 1.65; color: var(--body); }

/* ---------- quad shots ---------- */

.quad-shots { position: relative; height: 300px; }

.quad-shot { position: absolute; margin: 0; }

.q1 { top: 0; left: 8%; width: 54%; height: 42%; z-index: 2; }
.q2 { top: 3%; right: 0; width: 38%; height: 30%; z-index: 3; }
.q3 { bottom: 5%; left: 0; width: 42%; height: 34%; z-index: 3; }
.q4 { bottom: 0; right: 5%; width: 52%; height: 40%; z-index: 1; }

.feature-block { margin-bottom: 22px; }
.feature-block h3 { margin: 0 0 6px; font-size: 15.5px; font-weight: 700; letter-spacing: -.015em; color: var(--blue); }
.feature-block p { margin: 0; font-size: 13px; line-height: 1.72; color: var(--body); }

/* ---------- value cards ---------- */

.four-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }

.value-card {
  padding: 20px 18px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r);
}

.value-card .why-icon { width: 32px; height: 32px; margin-bottom: 12px; }
.value-card .why-icon svg { width: 16px; height: 16px; }

/* ---------- features ---------- */

.feature-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }

.feature-card {
  padding: 0;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r);
  box-shadow: var(--shadow-1);
  transition: border-color .15s, box-shadow .2s;
  overflow: hidden;
}

.feature-card:hover { border-color: #cfdcee; box-shadow: var(--shadow-2); }

.feature-card.has-shot { display: grid; grid-template-columns: 210px 1fr; gap: 0; padding: 0; overflow: hidden; }

.feature-shot { margin: 0; border: 0; border-right: 1px solid var(--line-soft); border-radius: 0; box-shadow: none; }
.feature-shot img { height: 100%; min-height: 168px; }

.feature-body { padding: 20px 18px; height: 100%; display: flex; flex-direction: column; }

.feature-icon {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  margin-bottom: 10px;
  color: var(--blue);
  background: var(--blue-soft);
  border-radius: 8px;
}

.feature-icon svg { width: 16px; height: 16px; }

.feature-card h3 { margin: 0 0 6px; font-size: 13.5px; font-weight: 700; letter-spacing: -.015em; }
.feature-card p { margin: 0; font-size: 12.5px; line-height: 1.65; color: var(--body); }

/* ---------- additional ---------- */

.add-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; margin-bottom: 18px; }

.add-card {
  padding: 16px 16px 20px;
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: var(--r);
}

.add-card figure { margin: 0 0 14px; border-color: rgba(255, 255, 255, .16); border-radius: var(--r-sm); }
.add-card figure img { height: 150px; }
.add-card h3 { margin: 0 0 6px; font-size: 14px; font-weight: 700; color: #fff; }
.add-card p { margin: 0; font-size: 12.5px; line-height: 1.65; color: #b9cbe2; }

.three-grid-light { margin-bottom: 20px; align-items: stretch; }

.value-card-light {
  background: rgba(255, 255, 255, .07);
  border-color: rgba(255, 255, 255, .16);
  padding: 0;
  height: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.value-shot { margin: 0; height: 130px; overflow: hidden; border-bottom: 1px solid rgba(255, 255, 255, .12); }
.value-shot img { display: block; width: 100%; height: 100%; object-fit: cover; object-position: center; }
.value-body { padding: 18px 20px 22px; display: flex; flex-direction: column; flex: 1; }
.value-card-light h3 { color: #fff; margin: 0 0 8px; font-size: 15px; }
.value-card-light p { color: #b9cbe2; margin: 0; font-size: 13px; line-height: 1.72; }
.value-card-light .why-icon-light { width: 38px; height: 38px; margin-bottom: 12px; border-radius: 10px; }
.value-card-light .why-icon-light svg { width: 18px; height: 18px; }
.why-icon-light { color: #cfe0f7; background: rgba(255, 255, 255, .12); }

.add-note { margin: 0 auto 6px; max-width: 44em; font-size: 12.5px; line-height: 1.7; color: #b9cbe2; text-align: center; }

/* ---------- pricing ---------- */

.gold-card {
  max-width: 660px;
  margin: 0 auto;
  padding: 34px 34px 30px;
  background: #fff;
  border: 1px solid #d4e2f5;
  border-radius: 14px;
  box-shadow: var(--shadow-2);
  text-align: center;
}

.price-package {
  margin: 0 0 2px;
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted);
}

.gold-title { margin: 0 0 10px; font-size: 15px; font-weight: 700; color: var(--blue); }
.gold-price { margin: 0 0 22px; font-size: 30px; font-weight: 750; letter-spacing: -.03em; color: var(--ink); }

.gold-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 22px;
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  text-align: left;
}

.gold-list li { display: flex; align-items: flex-start; gap: 8px; font-size: 12.5px; color: var(--ink-2); }
.gold-list svg { width: 14px; height: 14px; color: var(--green); flex: 0 0 auto; margin-top: 3px; }

.gold-note { margin: 0 0 20px; font-size: 10.5px; color: var(--muted); }

/* comparison */

.table-wrap { overflow-x: auto; background: #fff; border: 1px solid var(--line); border-radius: var(--r); }

.compare-note {
  margin: 14px 0 0;
  max-width: 64em;
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
}

.compare { width: 100%; border-collapse: collapse; font-size: 12.5px; min-width: 600px; }

.compare thead th {
  padding: 12px 14px;
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--body);
  background: var(--bg-alt);
  border-bottom: 1px solid var(--line);
  text-align: center;
}

.compare thead th:first-child { text-align: left; }

.compare tbody th {
  padding: 11px 14px;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--ink-2);
  text-align: left;
  border-bottom: 1px solid var(--line-soft);
}

.compare tbody td {
  padding: 11px 14px;
  text-align: center;
  color: var(--muted);
  border-bottom: 1px solid var(--line-soft);
}

.compare tbody tr:last-child th,
.compare tbody tr:last-child td { border-bottom: 0; }

.compare tbody td.yes { color: var(--ink); font-weight: 650; }

/* 让客户一眼看出哪一栏是 iPowerClinic */
.compare thead th.is-us {
  background: var(--blue);
  color: #fff;
  border-radius: 8px 8px 0 0;
}

.compare thead th.is-us .us-tag {
  display: block;
  margin-top: 3px;
  font-size: 8.5px;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: none;
  color: #cfe0ff;
}

.compare tbody td.is-us {
  background: var(--blue-soft);
  color: var(--blue);
  font-weight: 700;
  box-shadow: inset 1px 0 0 rgba(29, 78, 216, .14),
              inset -1px 0 0 rgba(29, 78, 216, .14);
}

.compare tbody tr:last-child td.is-us { border-radius: 0 0 8px 8px; }

/* training / support */

.training-price { margin: 0 0 18px; font-size: 14px; font-weight: 700; color: var(--blue); }
.support-note { margin: 0 0 16px; font-size: 11px; color: var(--muted); }

.custom-block { margin-top: 28px; padding-top: 22px; border-top: 1px solid var(--line); }
.custom-block h3 { margin: 0 0 5px; font-size: 14.5px; font-weight: 700; color: var(--blue); }
.custom-block p { margin: 0 0 12px; font-size: 12.5px; color: var(--body); }

.custom-cta {
  padding: 38px 34px;
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: 14px;
  text-align: center;
}

.custom-cta h2 { margin: 0 0 20px; font-size: 18px; line-height: 1.45; font-weight: 700; letter-spacing: -.02em; color: var(--ink-2); }

/* faq */

.faq-grid { display: grid; grid-template-columns: .82fr 1.18fr; gap: 44px; align-items: start; }
.faq-grid .section-title, .faq-grid .section-lead { text-align: left; margin-left: 0; }
.faq-grid .section-lead { margin-bottom: 18px; }

.faq-list { display: flex; flex-direction: column; gap: 8px; }

.faq-item {
  padding: 14px 16px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
}

.faq-item summary { font-size: 12.5px; font-weight: 600; color: var(--ink); cursor: pointer; list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; float: right; color: var(--muted); }
.faq-item[open] summary::after { content: "–"; }
.faq-item p { margin: 10px 0 0; font-size: 12.5px; line-height: 1.7; color: var(--body); }

/* ---------- contact ---------- */

.contact-band { padding: 56px 0 68px; }

.contact-title {
  margin: 0 0 10px;
  font-size: 31px;
  font-weight: 700;
  letter-spacing: -.028em;
  color: var(--ink);
  text-align: center;
}

.contact-lead { margin: 0 auto 34px; max-width: 42em; font-size: 13.5px; line-height: 1.72; color: var(--body); text-align: center; }

.contact-layout { display: grid; grid-template-columns: 1.25fr .75fr; gap: 18px; align-items: start; }

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px 22px;
  background: var(--navy);
  border: 1px solid var(--navy);
  border-radius: var(--r);
}

.contact-form label { display: flex; flex-direction: column; gap: 5px; }
.contact-form label span { font-size: 11px; font-weight: 600; color: #a9c0dc; }

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 10px 12px;
  font: inherit;
  font-size: 13px;
  color: var(--ink);
  background: #fff;
  border: 1px solid #fff;
  border-radius: 7px;
  outline: none;
}

.contact-form input:focus,
.contact-form textarea:focus { box-shadow: 0 0 0 3px rgba(29, 78, 216, .35); }

.contact-form textarea { resize: vertical; }

.cf-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.check { display: flex; align-items: center; gap: 8px; font-size: 11.5px; color: #a9c0dc; cursor: pointer; }
.check input { width: 14px; height: 14px; accent-color: var(--blue-2); }

.contact-form .btn-blue { background: #0b1a30; border-color: #0b1a30; box-shadow: none; }
.contact-form .btn-blue:hover { background: #16304f; }

.contact-cards { display: flex; flex-direction: column; gap: 10px; }

.contact-card {
  padding: 16px 18px;
  background: var(--navy);
  border: 1px solid var(--navy);
  border-radius: var(--r-sm);
}

.contact-card-icon { display: inline-grid; place-items: center; width: 24px; height: 24px; margin-bottom: 8px; color: #9dbde0; }
.contact-card-icon svg { width: 16px; height: 16px; }

.contact-card h3 { margin: 0 0 4px; font-size: 12.5px; font-weight: 700; color: #fff; }
.contact-card p { margin: 0 0 8px; font-size: 11.5px; line-height: 1.55; color: #a9c0dc; }
.contact-card a { font-size: 12px; font-weight: 600; color: #fff; }
.contact-card a:hover { text-decoration: underline; }

.contact-list { list-style: none; margin: 22px 0 0; padding: 0; display: flex; flex-direction: column; gap: 11px; }
.contact-list li { display: flex; align-items: center; gap: 9px; font-size: 13px; color: var(--ink-2); }
.contact-list svg { width: 15px; height: 15px; color: var(--blue); }
.contact-list a { color: var(--ink-2); }
.contact-list a:hover { color: var(--blue); }

/* ---------- footer ---------- */

.site-foot { padding: 46px 0 26px; background: #0b1a30; color: #a9bdd6; }

.foot-cols { display: grid; grid-template-columns: 1.7fr 1fr 1fr; gap: 38px; align-items: start; }

.site-foot .site-brand-text strong { color: #fff; }
.site-foot .site-brand-text em { color: #6d84a3; }

.foot-tag { margin: 12px 0 0; max-width: 28em; font-size: 12px; line-height: 1.6; color: #8399b5; }

.foot-col h4 {
  margin: 0 0 12px;
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  color: #6d84a3;
}

.foot-col ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.foot-col a { font-size: 12px; color: #a9bdd6; }
.foot-col a:hover { color: #fff; }

.foot-legal {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 30px;
  padding-top: 18px;
  font-size: 10.5px;
  color: #6d84a3;
  border-top: 1px solid rgba(255, 255, 255, .08);
}

.foot-legal-links { display: flex; gap: 16px; flex-wrap: wrap; }
.foot-legal a { color: #8fa6c2; }
.foot-legal a:hover { color: #fff; }

/* ---------- floating cta ---------- */

.float-cta {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 60;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 11px 17px;
  font-size: 12.5px;
  font-weight: 600;
  color: #fff;
  background: #16a34a;
  border-radius: 999px;
  box-shadow: 0 10px 24px rgba(22, 163, 74, .3);
  transition: transform .15s, box-shadow .2s;
}

.float-cta:hover { transform: translateY(-1px); box-shadow: 0 14px 30px rgba(22, 163, 74, .38); }
.float-cta svg { width: 14px; height: 14px; }

/* ---------- patient journey ---------- */

.band-flow {
  background:
    radial-gradient(900px 340px at 50% -60px, #eef4ff 0%, rgba(238, 244, 255, 0) 70%),
    #fff;
}

.flow-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: flow;
}

.flow-step {
  position: relative;
  padding: 26px 22px 24px;
  border-top: 2px solid var(--line);
}

.flow-step::before {
  content: "";
  position: absolute;
  top: -5px;
  left: 22px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--blue);
}

.flow-step:first-child { border-top-color: var(--blue); }

.flow-no {
  display: block;
  margin-bottom: 10px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.4px;
  color: var(--blue);
  font-variant-numeric: tabular-nums;
}

.flow-step h3 { margin: 0 0 6px; font-size: 14.5px; font-weight: 700; letter-spacing: -.015em; }
.flow-step p { margin: 0; font-size: 12.5px; line-height: 1.68; color: var(--body); }

/* ---------- hero polish ---------- */

.hero {
  background:
    radial-gradient(760px 340px at 78% 8%, #eaf1ff 0%, rgba(234, 241, 255, 0) 62%),
    linear-gradient(180deg, #fbfcfe 0%, #fff 62%);
  border-bottom: 1px solid var(--line-soft);
}

.hero-visual { position: relative; }

.hero-visual::after {
  content: "";
  position: absolute;
  inset: 18px -14px -18px 18px;
  z-index: -1;
  border-radius: 16px;
  background: linear-gradient(140deg, #dce8fb, #f2f6fc);
}

/* ---------- card lift ---------- */

.why-card,
.value-card,
.person-card,
.feature-card,
.shot-card {
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}

.why-card:hover,
.value-card:hover,
.person-card:hover,
.feature-card:hover,
.shot-card:hover {
  transform: translateY(-2px);
  border-color: #cfdcee;
  box-shadow: var(--shadow-2);
}

/* ---------- responsive ---------- */

@media (max-width: 1040px) {
  .hero-grid { grid-template-columns: 1fr; gap: 36px; }
  .hero-visual .shot { height: 260px; }
  .hero-copy h1 { font-size: 32px; }
  .why-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .feature-card.has-shot { grid-template-columns: 180px 1fr; }
  .split-grid, .quote-grid, .faq-grid, .contact-layout { grid-template-columns: 1fr; gap: 30px; }
  .split-grid-rev > *:first-child { order: 0; }
  .people-grid, .four-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .flow-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stack-shots, .quad-shots { height: 250px; }
  .foot-cols { grid-template-columns: 1fr 1fr; }
  .foot-brand { grid-column: 1 / -1; }
  .page-hero-grid { grid-template-columns: 1fr; gap: 28px; }
  .page-hero-grid .page-figure, .quote-grid .page-figure { height: 220px; }
}

@media (max-width: 760px) {
  .wrap { padding: 0 20px; }
  .site-links { display: none; }
  .hero { padding: 44px 0 38px; }
  .hero-copy h1 { font-size: 26px; }
  .hero-visual .shot { height: 210px; }
  .band { padding: 46px 0; }
  .section-title { font-size: 21px; }
  .why-grid, .three-grid, .people-grid, .four-grid, .add-grid,
  .partner-grid, .gold-list, .foot-cols, .flow-grid { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-card.has-shot { grid-template-columns: 1fr; }
  .feature-shot { border-right: 0; border-bottom: 1px solid var(--line-soft); }
  .feature-shot img { height: 150px; min-height: 0; }
  .cf-row { grid-template-columns: 1fr; }
  .foot-legal { flex-direction: column; align-items: flex-start; gap: 12px; }
  .float-cta { right: 12px; bottom: 12px; padding: 10px 14px; font-size: 11.5px; }
  .page-title, .contact-title { font-size: 24px; }
  .big-quote { font-size: 16px; }
  .power-title { font-size: 18px; }
  .stack-shots, .quad-shots { height: 190px; }
  .gold-card { padding: 24px 20px; }
  .gold-price { font-size: 24px; }
  .hero-badges { flex-direction: column; }
}

/* ---------- book a demo ---------- */

.demo-hero {
  padding: 60px 0 52px;
  background: linear-gradient(150deg, #16305c 0%, #1d4ed8 58%, #2563eb 100%);
  text-align: center;
}

.demo-hero .eyebrow { color: #bcd3f5; }

.demo-hero h1 {
  margin: 0 0 14px;
  font-size: 34px;
  font-weight: 700;
  letter-spacing: -.03em;
  color: #fff;
}

.demo-hero p {
  margin: 0 auto;
  max-width: 48em;
  font-size: 14px;
  line-height: 1.78;
  color: #cfdcf2;
}

.demo-wrap { padding: 52px 0 66px; }
.demo-grid { display: grid; grid-template-columns: 330px 1fr; gap: 30px; align-items: start; }

.demo-perks { display: flex; flex-direction: column; gap: 12px; }

.demo-perk {
  display: flex;
  gap: 13px;
  padding: 15px 16px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r);
  box-shadow: var(--shadow-1);
}

.demo-perk .why-icon { margin: 0; flex: 0 0 auto; width: 34px; height: 34px; border-radius: 9px; }
.demo-perk .why-icon svg { width: 17px; height: 17px; }
.demo-perk h3 { margin: 0 0 3px; font-size: 13.5px; font-weight: 700; letter-spacing: -.015em; }
.demo-perk p { margin: 0; font-size: 12.5px; line-height: 1.62; color: var(--body); }

.demo-quote {
  margin: 16px 0 0;
  padding: 18px 20px;
  background: var(--bg-alt);
  border-left: 3px solid var(--blue);
  border-radius: var(--r-sm);
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--body);
}

.demo-quote footer { margin-top: 10px; font-size: 12px; font-weight: 600; color: var(--ink-2); }

.demo-card {
  padding: 26px 26px 28px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: var(--shadow-2);
}

.demo-card h2 { margin: 0 0 6px; font-size: 20px; font-weight: 700; letter-spacing: -.02em; }
.demo-card > p { margin: 0 0 20px; font-size: 13px; color: var(--body); }

.demo-form .cf-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.demo-form label { display: block; margin-bottom: 13px; font-size: 12px; color: var(--ink-2); }
.demo-form label > span { display: block; margin-bottom: 6px; font-weight: 600; }
.demo-form label > span em { font-style: normal; font-weight: 400; color: var(--muted); }

.demo-form input,
.demo-form select,
.demo-form textarea {
  width: 100%;
  padding: 10px 12px;
  font: inherit;
  font-size: 13px;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
}

.demo-form input:focus,
.demo-form select:focus,
.demo-form textarea:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(29, 78, 216, .12);
}

.demo-form textarea { resize: vertical; }

.demo-time {
  margin: 6px 0 18px;
  padding: 18px 18px 14px;
  background: var(--bg-alt);
  border: 1px solid var(--line-soft);
  border-radius: var(--r);
}

.demo-time h3 { margin: 0 0 12px; font-size: 13px; font-weight: 700; }

.chip-row { display: flex; flex-wrap: wrap; gap: 8px; }

.chip {
  position: relative;
  margin: 0;
  padding: 0;
  font: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

.chip > span {
  display: block;
  padding: 8px 12px;
  font-size: 12px;
  color: var(--ink-2);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  cursor: pointer;
  transition: border-color .15s, background .15s, color .15s;
}

.chip:hover > span { border-color: #c3d3ea; }

.chip.is-on > span {
  border-color: var(--blue);
  background: var(--blue-soft);
  color: var(--blue);
  font-weight: 600;
}

.chip-dates { margin-bottom: 14px; }

.chip-date > span {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
  min-width: 62px;
  padding: 8px 10px;
}

.chip-date em { font-style: normal; font-size: 10.5px; color: var(--muted); }
.chip-date strong { font-size: 15px; line-height: 1.15; }
.chip-date.is-on > span em { color: var(--blue); }

.demo-hint { margin: 0 0 10px; font-size: 11.5px; color: var(--muted); }

.demo-custom { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 16px; }
.demo-custom label { margin-bottom: 0; }

.demo-note { margin: 12px 0 0; font-size: 11.5px; color: var(--muted); }

.demo-success { padding: 26px 10px 10px; text-align: center; }

.demo-success-icon {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  margin: 0 auto 16px;
  color: #fff;
  background: var(--green);
  border-radius: 50%;
}

.demo-success-icon svg { width: 26px; height: 26px; }
.demo-success h2 { margin: 0 0 8px; font-size: 19px; }
.demo-success p { margin: 0 0 20px; font-size: 13px; color: var(--body); }

.demo-slot {
  margin: 0 0 20px;
  padding: 16px 18px;
  background: var(--bg-alt);
  border: 1px solid var(--line-soft);
  border-radius: var(--r);
  text-align: left;
}

.demo-success .demo-slot-label { margin: 0 0 4px; font-size: 11.5px; color: var(--muted); }
.demo-success .demo-slot-value { margin: 0 0 3px; font-size: 17px; font-weight: 700; color: var(--ink); }
.demo-success .demo-slot-name { margin: 0; font-size: 12.5px; color: var(--body); }
.demo-success .demo-note { margin: 10px 0 0; font-size: 11.5px; color: var(--muted); }
.demo-success .demo-back { margin: 16px 0 0; font-size: 12.5px; }
.demo-back a { color: var(--blue); font-weight: 600; }

.demo-error {
  margin: 0 0 16px;
  padding: 10px 14px;
  font-size: 12.5px;
  color: #a32d2d;
  background: #fcebeb;
  border: 1px solid #f7c1c1;
  border-radius: var(--r-sm);
}

@media (max-width: 1040px) {
  .demo-grid { grid-template-columns: 1fr; }
  .demo-hero h1 { font-size: 27px; }
}

@media (max-width: 760px) {
  .demo-hero { padding: 44px 0 38px; }
  .demo-hero h1 { font-size: 23px; }
  .demo-card { padding: 20px 18px 22px; }
  .demo-form .cf-row { grid-template-columns: 1fr; }
}

/* ---------- intro video ---------- */

.band-video {
  background: var(--bg-alt);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.video-wrap { max-width: 880px; margin: 0 auto; text-align: center; }
.video-wrap .section-lead { margin-left: auto; margin-right: auto; }

.video-poster {
  position: relative;
  margin: 28px 0 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: var(--shadow-2);
  cursor: pointer;
  aspect-ratio: 16 / 9;
  background: #0d1b2a;
}

.video-poster img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top left;
}

.video-poster.is-soon { cursor: default; }
.video-poster.is-soon img { opacity: .8; }

.video-play {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 0;
  border: 0;
  background: rgba(9, 18, 32, .3);
  cursor: pointer;
  transition: background .2s;
}

.video-play::before {
  content: '';
  width: 66px;
  height: 66px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 10px 30px rgba(9, 18, 32, .35);
  transition: transform .2s;
}

.video-play svg {
  position: absolute;
  width: 30px;
  height: 30px;
  margin-left: 3px;
  fill: var(--blue);
}

.video-poster:hover .video-play { background: rgba(9, 18, 32, .42); }
.video-poster:hover .video-play::before { transform: scale(1.07); }

.video-soon {
  position: absolute;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  padding: 8px 16px;
  font-size: 12px;
  color: #fff;
  background: rgba(9, 18, 32, .74);
  border-radius: 999px;
  white-space: nowrap;
}

.video-modal {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(6, 12, 22, .86);
}

.video-modal[hidden] { display: none; }

.video-modal-box { position: relative; width: min(1000px, 100%); }

.video-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #000;
  border-radius: 12px;
  overflow: hidden;
}

.video-frame iframe,
.video-frame video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.video-close {
  position: absolute;
  top: -42px;
  right: 0;
  width: 34px;
  height: 34px;
  font-size: 21px;
  line-height: 1;
  color: #fff;
  background: rgba(255, 255, 255, .15);
  border: 0;
  border-radius: 50%;
  cursor: pointer;
}

.video-close:hover { background: rgba(255, 255, 255, .28); }

@media (max-width: 760px) {
  .video-play::before { width: 54px; height: 54px; }
  .video-play svg { width: 24px; height: 24px; }
  .video-soon { font-size: 11px; padding: 7px 13px; bottom: 12px; }
  .video-close { top: -38px; width: 30px; height: 30px; font-size: 18px; }
}

/* ---------- apple-style motion ---------- */

/* 滚动滑入：只有 JS 可用时才隐藏，避免没 JS 时内容消失 */
.js .reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .8s cubic-bezier(.16, 1, .3, 1),
              transform .8s cubic-bezier(.16, 1, .3, 1);
  will-change: opacity, transform;
}

.js .reveal.is-in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- burger ---------- */

.nav-burger {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  margin-left: auto;
  padding: 0;
  border: 0;
  background: none;
  cursor: pointer;
}

.nav-burger span {
  display: block;
  width: 21px;
  height: 2px;
  border-radius: 2px;
  background: var(--ink);
  transition: transform .32s cubic-bezier(.16, 1, .3, 1), opacity .2s;
}

.nav-burger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-burger.is-open span:nth-child(2) { opacity: 0; }
.nav-burger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- mobile slide-out menu ---------- */

.mobile-scrim {
  position: fixed;
  inset: 0;
  z-index: 70;
  background: rgba(9, 18, 32, .45);
  opacity: 0;
  visibility: hidden;
  transition: opacity .35s ease, visibility .35s;
}

.mobile-scrim.is-open { opacity: 1; visibility: visible; }

.mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  z-index: 80;
  display: flex;
  flex-direction: column;
  width: min(86%, 350px);
  height: 100%;
  padding: 18px 22px 26px;
  background: #fff;
  box-shadow: -14px 0 44px rgba(9, 18, 32, .2);
  transform: translateX(100%);
  visibility: hidden;
  transition: transform .45s cubic-bezier(.16, 1, .3, 1), visibility .45s;
  overflow-y: auto;
}

.mobile-menu.is-open { transform: translateX(0); visibility: visible; }

.mobile-menu-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-soft);
}

.mobile-menu-brand {
  font-size: 14.5px;
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--ink);
}

.mobile-close {
  width: 34px;
  height: 34px;
  font-size: 22px;
  line-height: 1;
  color: var(--ink-2);
  background: var(--bg-alt);
  border: 0;
  border-radius: 50%;
  cursor: pointer;
}

.mobile-links { display: flex; flex-direction: column; }

.mobile-links a {
  padding: 13px 2px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -.01em;
  color: var(--ink-2);
  border-bottom: 1px solid var(--line-soft);
}

.mobile-links a.is-current { color: var(--blue); }

.mobile-foot {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: auto;
  padding-top: 24px;
}

.mobile-foot .btn-dark { margin: 0; text-align: center; }
.lang-switch-mobile { margin: 0; align-self: flex-start; }

body.menu-open { overflow: hidden; }

@media (max-width: 760px) {
  .nav-burger { display: flex; }
  .nav-inner > .lang-switch,
  .nav-inner > .btn-dark { display: none; }
}

/* ---------- about page ---------- */
.about-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.about-stat { text-align: center; padding: 24px 16px; border: 1px solid rgba(13, 27, 42, .1); border-radius: 16px; background: #fff; }
.about-stat strong { display: block; font-size: 30px; font-weight: 800; letter-spacing: -.03em; color: var(--ink); }
.about-stat span { display: block; margin-top: 6px; font-size: 12.5px; color: var(--muted); }
.about-para { margin: 0 0 14px; font-size: 15px; line-height: 1.7; color: var(--muted); }
.about-para:last-child { margin-bottom: 0; }

@media (max-width: 760px) {
  .about-stats { grid-template-columns: repeat(2, 1fr); }
}