/* ============================================================
   有数智能科技 · 服装行业 AI 数字化
   视觉：B2B SaaS 产品风 / 白底 + 亮蓝 + 淡蓝分区
   ============================================================ */

:root{
  --blue:       #285bf0;
  --blue-dark:  #1743c5;
  --blue-soft:  #eef3ff;
  --blue-line:  #dbe5f8;

  --ink:        #172641;
  --ink-soft:   #3c4d68;
  --muted:      #66738a;
  --faint:      #8a94a6;

  --line:       #e4e9f1;
  --line-2:     #dce4f3;
  --pale:       #f5f7fc;
  --pale-2:     #fafcff;
  --green:      #20816c;
  --amber:      #eeae3d;
  --red:        #c44343;

  --radius:     10px;
  --radius-sm:  7px;
  --radius-xs:  4px;

  --shadow-sm:  0 2px 8px rgba(28,52,102,.05);
  --shadow:     0 24px 70px -25px rgba(41,87,164,.24), 0 3px 12px rgba(28,54,104,.03);
  --shadow-lg:  0 30px 80px -30px rgba(41,87,164,.32), 0 4px 14px rgba(28,54,104,.04);

  --font: "Inter", "PingFang SC", "HarmonyOS Sans SC", "Hiragino Sans GB", "Microsoft YaHei",
          system-ui, -apple-system, "Segoe UI", sans-serif;

  --ease: cubic-bezier(.16, 1, .3, 1);
}

*,*::before,*::after{ box-sizing: border-box; }

html{
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
  background: #fff;
}

body{
  margin: 0;
  background: #fff;
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
  font-synthesis: none;
}

::selection{ background: #d7e3ff; color: var(--ink); }

img, svg{ display: block; max-width: 100%; }
p{ margin: 0; }
a{ color: inherit; text-decoration: none; }
h1, h2, h3{ margin: 0; font-weight: 600; line-height: 1.35; letter-spacing: -.6px; }
ul, ol{ margin: 0; padding: 0; }

.container{
  width: min(1240px, calc(100% - 80px));
  margin-inline: auto;
}

/* ---------------- 通用 ---------------- */
.eyebrow{
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--blue);
  letter-spacing: .4px;
  margin-bottom: 20px;
}
.eyebrow-line{ width: 25px; height: 2px; background: var(--blue); flex: none; }
.eyebrow.light{ color: #a9c2ff; }
.eyebrow.light .eyebrow-line{ background: #a9c2ff; }

.section{ padding: 100px 0; }
.section-pale{
  background: var(--pale);
  border-top: 1px solid #eef1f6;
  border-bottom: 1px solid #eef1f6;
}

.section-heading{
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 44px;
}
.section-heading h2{
  font-size: clamp(26px, 2.9vw, 38px);
  letter-spacing: -1px;
  line-height: 1.28;
}
.section-heading > p{
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--muted);
  text-align: right;
  flex: none;
}

.section-copy{
  font-size: 15.5px;
  line-height: 1.95;
  color: var(--muted);
  margin-top: 20px;
}

.text-link{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--blue);
  font-size: 14.5px;
  font-weight: 500;
  margin-top: 24px;
}
.text-link span{ transition: transform .3s var(--ease); }
.text-link:hover span{ transform: translateX(4px); }

/* ---------------- 按钮 ---------------- */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 50px;
  padding: 12px 24px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: background .2s var(--ease), color .2s var(--ease),
              border-color .2s var(--ease), transform .2s var(--ease),
              box-shadow .2s var(--ease);
}
.btn-primary{
  background: var(--blue);
  border-color: var(--blue);
  color: #fff;
}
.btn-primary:hover{
  background: var(--blue-dark);
  border-color: var(--blue-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px -10px rgba(40,91,240,.6);
}
.btn-outline{
  background: #fff;
  border-color: #d7deeb;
  color: var(--ink);
}
.btn-outline:hover{
  background: var(--blue);
  border-color: var(--blue);
  color: #fff;
  transform: translateY(-2px);
}
.btn-sm{ min-height: 40px; padding: 8px 18px; font-size: 14px; }
.btn-lg{ min-height: 52px; padding: 13px 26px; }
.btn-block{ width: 100%; }
.btn:active{ transform: translateY(0); }

/* ============================================================
   HEADER
   ============================================================ */
.site-header{
  position: sticky;
  top: 0;
  z-index: 50;
  height: 84px;
  background: rgba(255,255,255,.92);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(228,233,241,.8);
}
.header-inner{
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand{ display: flex; align-items: center; gap: 10px; flex: none; }
.brand-mark{ width: 34px; height: 34px; flex: none; border-radius: 7px; }
.brand-text{ display: grid; gap: 2px; }
.brand-name{
  font-size: 18px;
  font-weight: 600;
  letter-spacing: .5px;
  line-height: 1.2;
  color: var(--ink);
}
.brand-sub{
  font-size: 10.5px;
  letter-spacing: 1.4px;
  color: var(--faint);
  line-height: 1.2;
  font-weight: 400;
}

.site-nav{
  display: flex;
  align-items: center;
  gap: 30px;
  margin-left: auto;
}
.site-nav a{
  position: relative;
  font-size: 14px;
  color: var(--ink-soft);
  padding: 4px 0;
  transition: color .2s var(--ease);
}
.site-nav a::after{
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 2px;
  background: var(--blue);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s var(--ease);
}
.site-nav a:hover{ color: var(--blue); }
.site-nav a:hover::after,
.site-nav a.is-active::after{ transform: scaleX(1); }
.site-nav a.is-active{ color: var(--blue); }

.header-actions{ display: flex; align-items: center; gap: 14px; flex: none; }

.header-phone{
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 2px;
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: -.1px;
  color: var(--ink);
  white-space: nowrap;
  transition: color .3s var(--ease);
}
.header-phone svg{ width: 15px; height: 15px; color: var(--blue); flex: none; }
.header-phone:hover{ color: var(--blue); }

.menu-toggle{
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 40px; height: 40px;
  padding: 9px;
  border: 1px solid var(--line);
  border-radius: var(--radius-xs);
  background: #fff;
  cursor: pointer;
}
.menu-toggle span{
  display: block;
  height: 1.6px;
  width: 100%;
  background: var(--ink);
  border-radius: 2px;
  transition: transform .3s var(--ease);
}
.menu-toggle[aria-expanded="true"] span:nth-child(1){ transform: translateY(4px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2){ transform: translateY(-4px) rotate(-45deg); }

/* ============================================================
   HERO
   ============================================================ */
.hero{
  padding-top: 74px;
  background:
    radial-gradient(ellipse at 88% 12%, #e8efff 0, transparent 52%),
    linear-gradient(#fafcff, #fff 62%);
  overflow: hidden;
}

.hero-layout{
  display: grid;
  grid-template-columns: .92fr 1.18fr;
  gap: 48px;
  align-items: center;
}

.hero-copy h1{
  font-size: clamp(36px, 4.4vw, 62px);
  line-height: 1.24;
  letter-spacing: -2px;
  margin-bottom: 24px;
  font-weight: 600;
}
.hero-copy h1 span{ color: var(--blue); }

.hero-desc{
  font-size: 17.5px;
  line-height: 1.9;
  color: var(--ink-soft);
  max-width: 34em;
}

.hero-actions{
  display: flex;
  gap: 12px;
  margin-top: 30px;
  flex-wrap: wrap;
}

.hero-notes{
  display: flex;
  gap: 22px;
  margin-top: 22px;
  font-size: 13px;
  color: var(--muted);
  flex-wrap: wrap;
}
.hero-notes span::before{
  content: "✓";
  color: var(--blue);
  margin-right: 6px;
  font-weight: 600;
}

/* ---------- 四个自动化能力 ---------- */
.auto-row{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}
.auto-row li{
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 12px 7px 10px;
  border: 1px solid #d9e4f9;
  border-radius: 999px;
  background: linear-gradient(#f8fbff, #edf3ff);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: -.1px;
  color: #1e46b8;
  white-space: nowrap;
  transition: transform .4s var(--ease), box-shadow .4s var(--ease), border-color .4s var(--ease);
}
.auto-row li:hover{
  transform: translateY(-2px);
  border-color: #b9cdf0;
  box-shadow: 0 6px 16px -8px rgba(40,91,240,.4);
}
.auto-row li svg{
  width: 15px;
  height: 15px;
  flex: none;
  color: var(--blue);
}

/* ---------- 看板 ---------- */
.hero-visual{ min-width: 0; }

.dashboard{
  border: 1px solid var(--line-2);
  border-radius: 12px;
  background: #fff;
  box-shadow: var(--shadow);
  overflow: hidden;
  transform: perspective(1600px) rotateY(-4deg) rotateX(1deg);
  transition: transform .8s var(--ease), box-shadow .8s var(--ease);
}
.dashboard:hover{
  transform: perspective(1600px) rotateY(-1.5deg) rotateX(0deg) translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.dash-top{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 13px 18px;
  border-bottom: 1px solid var(--line);
  background: #fcfdff;
}
.dash-brand{
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink);
}
.dash-brand svg{ width: 17px; height: 17px; border-radius: 4px; }
.demo-tag{
  font-size: 11px;
  color: #6b7890;
  border: 1px solid #dfe5ee;
  border-radius: var(--radius-xs);
  padding: 1px 6px;
  font-weight: 400;
}
.dash-period{
  font-size: 11.5px;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: var(--radius-xs);
  padding: 4px 9px;
}

.dash-body{ padding: 20px; }

.dash-head{
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}
.overline{
  font-size: 10px;
  letter-spacing: 1.1px;
  color: #8793a7;
  display: block;
  margin-bottom: 4px;
}
.dash-head h2{
  font-size: 17px;
  letter-spacing: -.3px;
  font-weight: 600;
}
.dash-pill{
  font-size: 11px;
  color: var(--blue);
  background: var(--blue-soft);
  border: 1px solid #dbe6ff;
  border-radius: var(--radius-xs);
  padding: 3px 8px;
  white-space: nowrap;
}

.dash-pill.live{
  display: inline-flex;
  align-items: center;
  gap: 5px;
  border-color: #cddffd;
}
.live-dot{
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--blue);
  animation: livePulse 1.9s var(--ease) infinite;
}
@keyframes livePulse{
  0%, 100%{ opacity: 1; transform: scale(1); }
  50%{ opacity: .3; transform: scale(.7); }
}

/* ---------- 巡检清单 ---------- */
.patrol{
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}
.patrol li{
  display: grid;
  grid-template-columns: 28px minmax(0,1fr) auto;
  gap: 11px;
  align-items: center;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
}
.pt-ico{
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 7px;
  background: var(--blue-soft);
  color: var(--blue);
}
.pt-ico svg{ width: 15px; height: 15px; }
.pt-body h4{
  margin: 0 0 2px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0;
  line-height: 1.4;
  color: var(--ink);
}
.pt-body p{
  margin: 0;
  font-size: 11.5px;
  line-height: 1.55;
  color: #5c708f;
}
.pt-tag{
  padding: 2px 7px;
  border-radius: var(--radius-xs);
  font-size: 10.5px;
  font-weight: 500;
  white-space: nowrap;
}
.pt-tag.done{ color: var(--green); background: #eaf6f1; border: 1px solid #d0e9e0; }
.pt-tag.wait{ color: #99660d; background: #fdf5e5; border: 1px solid #f2e3c2; }

.patrol-foot{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 13px;
  font-size: 11px;
  color: var(--muted);
}
.pf-dot{
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 6px;
  border-radius: 50%;
  background: #22b07d;
  box-shadow: 0 0 0 3px rgba(34,176,125,.14);
  vertical-align: 1px;
}
.pf-more{ color: var(--blue); white-space: nowrap; }

.metrics{
  display: grid;
  grid-template-columns: 1.1fr 1fr 1fr;
  gap: 12px;
  margin-bottom: 22px;
}
.metrics > div{
  border-right: 1px solid var(--line);
  padding-right: 12px;
}
.metrics > div:last-child{ border-right: 0; padding-right: 0; }
.metrics span{ display: block; font-size: 11.5px; color: var(--muted); }
.metrics strong{
  display: block;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -.6px;
  margin-top: 5px;
  line-height: 1.4;
  font-variant-numeric: tabular-nums;
}
.metrics em{ font-size: 13px; font-style: normal; color: var(--muted); margin-left: 1px; }
.metrics small{ display: block; font-size: 11px; color: #8790a0; margin-top: 3px; }
.metrics b{ font-weight: 500; color: var(--green); }
.metrics b.down{ color: var(--red); }

.dash-caption{
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 16px;
  font-size: 11.5px;
  color: var(--faint);
  flex-wrap: wrap;
}

.hero-foot{
  display: flex;
  align-items: center;
  gap: 32px;
  margin-top: 68px;
  padding: 24px 0;
  border-top: 1px solid var(--line);
  font-size: 13.5px;
  color: var(--faint);
}
.hero-foot > div{ display: flex; gap: 36px; flex-wrap: wrap; }
.hero-foot > div span{ color: #43516a; font-weight: 500; }

/* ============================================================
   01 商品问题
   ============================================================ */
.capability-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.capability{
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  background: linear-gradient(#fafcff, #fff 58%);
  transition: border-color .3s var(--ease), box-shadow .3s var(--ease), transform .3s var(--ease);
}
.capability:hover{
  border-color: #cfdcf5;
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}

.num{ font-size: 12px; color: #8491a7; letter-spacing: 1px; }

.cap-graphic{
  height: 148px;
  margin: 20px 0 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fff;
  border: 1px solid #eef2f9;
  border-radius: 8px;
  padding: 14px;
  overflow: hidden;
}

.capability h3{ font-size: 19px; margin: 18px 0 10px; letter-spacing: -.4px; }
.capability p{ font-size: 14.5px; line-height: 1.85; color: var(--muted); }

.cap-link{
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 13.5px;
  color: var(--blue);
  font-weight: 500;
}
.cap-link span{ transition: transform .3s var(--ease); }
.cap-link:hover span{ transform: translateX(4px); }

/* 小图 1：品类条 */
.stack-bars{ width: 100%; display: grid; gap: 11px; }
.stack-row{
  display: grid;
  grid-template-columns: 54px 1fr 46px;
  gap: 9px;
  align-items: center;
  font-size: 11px;
  color: var(--ink-soft);
}
.stack-row i{
  display: block;
  height: 9px;
  border-radius: 5px;
  width: var(--w);
  background: linear-gradient(90deg, #9bb6ff, #285bf0);
}
.stack-row em{ font-style: normal; color: var(--faint); font-size: 10px; text-align: right; }

/* 小图 2：尺码矩阵 */
.size-matrix{ width: 100%; }
.mx-head,
.mx-row{
  display: grid;
  grid-template-columns: 52px repeat(5, 1fr);
  gap: 5px;
  align-items: center;
}
.mx-head{ margin-bottom: 7px; }
.mx-head b{
  font-size: 9.5px;
  font-weight: 500;
  color: var(--faint);
  text-align: center;
  letter-spacing: .4px;
}
.mx-row{ margin-bottom: 5px; }
.mx-row span{ font-size: 11px; color: var(--ink-soft); }
.mx-row i{
  display: block;
  height: 15px;
  border-radius: 3px;
}
i.ok{ background: #d8e5ff; }
i.warn{ background: #ffe0b0; }
i.bad{ background: #f8c9c9; }
.mx-foot{
  display: flex;
  align-items: center;
  gap: 5px;
  margin-top: 10px;
  font-size: 9.5px;
  color: var(--faint);
}
.mx-foot .lg{ width: 9px; height: 9px; border-radius: 2px; display: inline-block; margin-left: 8px; }
.mx-foot .lg:first-child{ margin-left: 0; }

/* 小图 3：口径不一致 */
.mismatch{ width: 100%; }
.mrow{
  display: grid;
  grid-template-columns: 62px 1fr auto;
  gap: 8px;
  align-items: baseline;
  padding: 7px 10px;
  border-radius: 5px;
  font-size: 11px;
  color: var(--ink-soft);
  background: #fbfcfe;
  margin-bottom: 5px;
  border: 1px solid #eef2f9;
}
.mrow b{ font-size: 14px; font-weight: 600; letter-spacing: -.3px; }
.mrow em{ font-style: normal; font-size: 9.5px; color: var(--faint); }
.mismatch-last{
  border-style: dashed;
  border-color: #cfd8e8;
  background: #fff;
}
.mismatch-last b{ color: var(--red); }
.mismatch-note{
  font-size: 10px;
  color: var(--faint);
  text-align: center;
  margin-top: 8px;
}

/* ============================================================
   02 方案
   ============================================================ */
.plans{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  align-items: start;
}

.plan{
  position: relative;
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid #e0e7f2;
  border-radius: var(--radius);
  padding: 26px 24px 24px;
  transition: border-color .3s var(--ease), box-shadow .3s var(--ease), transform .3s var(--ease);
}
.plan:hover{
  border-color: #cbd9f2;
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}
.plan-featured{
  border: 2px solid var(--blue);
  box-shadow: 0 24px 60px -28px rgba(40,91,240,.4);
  padding: 25px 23px 23px;
}
.plan-flag{
  position: absolute;
  top: -11px;
  left: 24px;
  background: var(--blue);
  color: #fff;
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 20px;
  letter-spacing: .3px;
}

.plan-top{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.plan-tag{
  font-size: 11.5px;
  color: var(--blue);
  background: var(--blue-soft);
  border-radius: var(--radius-xs);
  padding: 3px 8px;
  font-weight: 500;
}
.plan-no{ font-size: 11.5px; color: var(--faint); letter-spacing: 1px; }

.plan h3{ font-size: 21px; margin: 16px 0 8px; letter-spacing: -.5px; }
.plan-desc{ font-size: 14px; line-height: 1.8; color: var(--muted); min-height: 50px; }

.plan-price{
  display: flex;
  align-items: baseline;
  gap: 3px;
  margin: 20px 0 18px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}
.plan-price .cur{ font-size: 15px; color: var(--muted); }
.plan-price .amount{
  font-size: 38px;
  font-weight: 600;
  letter-spacing: -1.4px;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.plan-featured .plan-price .amount{ color: var(--blue); }
.plan-price .unit{ font-size: 12px; color: var(--faint); margin-left: 6px; }

.plan ul{
  list-style: none;
  display: grid;
  gap: 9px;
  margin-bottom: 24px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
}
.plan ul li{
  position: relative;
  padding-left: 20px;
}
.plan ul li::before{
  content: "";
  position: absolute;
  left: 2px; top: 9px;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: #b9c8e0;
}
.plan-featured ul li::before{ background: var(--blue); }

.plan .btn{ margin-top: auto; }

.plans-note{
  margin-top: 22px;
  font-size: 13px;
  color: var(--muted);
  text-align: center;
}

/* ============================================================
   03 怎么合作
   ============================================================ */
.steps{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  list-style: none;
  counter-reset: step;
}
.steps li{
  border-top: 1px solid #d8e1ef;
  padding-top: 20px;
  position: relative;
}
.steps li::before{
  content: "";
  position: absolute;
  top: -4px; left: 0;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--blue);
}
.step-no{
  font-size: 13px;
  color: var(--blue);
  font-weight: 500;
  letter-spacing: .5px;
}
.steps h3{ font-size: 18px; margin: 14px 0 10px; letter-spacing: -.4px; }
.steps p{ font-size: 14.5px; line-height: 1.85; color: var(--muted); }

/* ============================================================
   04 技术底座
   ============================================================ */
.stack-layout{
  display: grid;
  grid-template-columns: 1fr 1.02fr;
  gap: 72px;
  align-items: center;
}
.stack-copy h2{
  font-size: clamp(26px, 2.9vw, 38px);
  letter-spacing: -1px;
  line-height: 1.28;
  margin-bottom: 4px;
}
.stack-points{
  display: grid;
  gap: 12px;
  margin-top: 26px;
}
.stack-points p{
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
  padding-left: 14px;
  border-left: 2px solid #dbe5f8;
}
.stack-points b{ color: var(--ink); font-weight: 600; }

.layer-card{
  background: #fff;
  border: 1px solid var(--line-2);
  border-radius: 12px;
  padding: 22px;
  box-shadow: var(--shadow-sm);
}
.layer-card-top{
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12.5px;
  color: var(--muted);
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 6px;
}
.layer-badge{
  font-size: 10.5px;
  color: var(--blue);
  background: var(--blue-soft);
  border-radius: var(--radius-xs);
  padding: 2px 7px;
}

.layer{
  display: grid;
  grid-template-columns: 34px 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 15px 10px;
  border-bottom: 1px solid #f0f3f9;
  border-radius: 6px;
  transition: background .25s var(--ease);
}
.layer:last-of-type{ border-bottom: 0; }
.layer:hover{ background: #f7faff; }
.layer-no{
  font-size: 10.5px;
  color: var(--blue);
  background: var(--blue-soft);
  border-radius: var(--radius-xs);
  padding: 2px 0;
  text-align: center;
  font-weight: 500;
  letter-spacing: .3px;
}
.layer h3{ font-size: 14.5px; letter-spacing: -.2px; margin-bottom: 3px; }
.layer p{ font-size: 12px; color: var(--muted); }
.layer-tag{
  font-size: 10.5px;
  color: #73829b;
  background: #f4f6fa;
  border-radius: var(--radius-xs);
  padding: 3px 8px;
  white-space: nowrap;
}
.layer-note{
  font-size: 11.5px;
  color: var(--faint);
  border-top: 1px solid var(--line);
  padding-top: 12px;
  margin-top: 6px;
}

/* ============================================================
   05 关于
   ============================================================ */
.about-layout{
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 70px;
  align-items: start;
}
.about-copy h2{
  font-size: clamp(26px, 2.9vw, 38px);
  letter-spacing: -1px;
  line-height: 1.3;
}
.about-slogan{
  font-size: 17px;
  line-height: 1.8;
  font-weight: 500;
  color: var(--ink);
  margin-top: 16px;
}
.about-side{ display: grid; gap: 18px; }

.no-card{
  background: #fbfcfe;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 24px;
}
.no-card h3{
  font-size: 13px;
  color: var(--muted);
  font-weight: 500;
  letter-spacing: .5px;
  margin-bottom: 12px;
}
.no-card ul{ list-style: none; display: grid; gap: 9px; }
.no-card li{
  position: relative;
  padding-left: 24px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
}
.no-card li::before{
  content: "×";
  position: absolute;
  left: 4px;
  top: -1px;
  color: var(--red);
  opacity: .7;
}

.salon-card{
  background: linear-gradient(#f4f8ff, #fff);
  border: 1px solid #dbe5f8;
  border-radius: var(--radius);
  padding: 22px 24px;
}
.salon-tag{
  font-size: 10.5px;
  color: var(--blue);
  letter-spacing: .6px;
  display: block;
  margin-bottom: 8px;
}
.salon-card h3{ font-size: 16.5px; letter-spacing: -.3px; margin-bottom: 8px; }
.salon-card p{ font-size: 13.5px; line-height: 1.8; color: var(--muted); }
.salon-card .text-link{ margin-top: 12px; font-size: 13.5px; }

/* ============================================================
   06 FAQ
   ============================================================ */
.faq-layout{
  display: grid;
  grid-template-columns: .8fr 1.4fr;
  gap: 70px;
  align-items: start;
}
.faq-copy h2{
  font-size: clamp(26px, 2.9vw, 38px);
  letter-spacing: -1px;
  line-height: 1.3;
}
.faq-list details{ border-bottom: 1px solid var(--line); }
.faq-list details:first-child{ border-top: 1px solid var(--line); }
.faq-list summary{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 0;
  font-size: 15.5px;
  font-weight: 500;
  cursor: pointer;
  list-style: none;
  transition: color .2s var(--ease);
}
.faq-list summary::-webkit-details-marker{ display: none; }
.faq-list summary::after{
  content: "+";
  font-size: 22px;
  font-weight: 400;
  color: var(--faint);
  line-height: 1;
  flex: none;
  transition: color .2s var(--ease);
}
.faq-list summary:hover{ color: var(--blue); }
.faq-list details[open] summary{ color: var(--blue); }
.faq-list details[open] summary::after{ content: "−"; color: var(--blue); }
.faq-list details p{
  font-size: 14.5px;
  line-height: 1.95;
  color: var(--muted);
  padding: 0 30px 24px 0;
  max-width: 62ch;
}

/* ============================================================
   07 预约（深蓝）
   ============================================================ */
.contact-section{
  background:
    radial-gradient(ellipse at 88% 8%, rgba(95,138,255,.35) 0, transparent 46%),
    #163579;
  padding: 78px 0;
  color: #fff;
}
.contact-layout{
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 80px;
  align-items: center;
}
.contact-copy h2{
  font-size: clamp(28px, 3.2vw, 40px);
  line-height: 1.42;
  letter-spacing: -.8px;
  color: #fff;
}
.contact-copy > p{
  font-size: 15.5px;
  line-height: 1.95;
  color: #c2d0ec;
  margin-top: 18px;
  max-width: 34em;
}
.contact-points{
  list-style: none;
  display: grid;
  gap: 0;
  margin-top: 26px;
  max-width: 440px;
}
.contact-points li{
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 14px;
  padding: 11px 0;
  border-top: 1px solid rgba(255,255,255,.14);
  font-size: 13.5px;
  color: #c8d6ef;
}
.contact-points li:last-child{ border-bottom: 1px solid rgba(255,255,255,.14); }
.contact-points b{ font-weight: 500; color: #fff; }

.contact-direct{
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,.14);
}
.cd-label{
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: #8ba3d3;
}
.cd-phone{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: clamp(22px, 2.4vw, 27px);
  font-weight: 600;
  letter-spacing: .6px;
  color: #fff;
  transition: color .3s var(--ease);
}
.cd-phone svg{ width: 20px; height: 20px; color: #7fa1ff; flex: none; }
.cd-phone:hover{ color: #b9cdff; }
.cd-addr{
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.65;
  color: #c2d0ec;
}
.cd-addr svg{ width: 15px; height: 15px; margin-top: 3px; color: #7fa1ff; flex: none; }

.contact-card{
  background: #fff;
  border-radius: 12px;
  padding: 30px;
  color: var(--ink);
  box-shadow: 0 30px 70px -30px rgba(0,0,0,.5);
}
.card-badge{
  display: inline-block;
  font-size: 11.5px;
  color: #3f608f;
  background: var(--blue-soft);
  border-radius: var(--radius-xs);
  padding: 4px 9px;
  margin-bottom: 12px;
}
.contact-card h3{ font-size: 21px; letter-spacing: -.5px; }
.contact-card > p{ font-size: 13.5px; color: var(--muted); margin-top: 7px; }

/* ---- 二维码卡 ---- */
.qr-card{ text-align: center; }
.qr-card h3{ font-size: 22px; }
.qr-card > p{ font-size: 14px; }
.qr-card > p b{ color: var(--blue); font-weight: 600; }

.qr-wrap{
  margin: 22px auto 0;
  width: 240px;
  border: 1px solid #e4e9f1;
  border-radius: 10px;
  overflow: hidden;
  background: #fff;
}
.qr-wrap img{ display: block; width: 100%; height: auto; }
.qr-scan{
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 12px;
  color: var(--muted);
  padding: 8px 10px;
  border-top: 1px solid #eef1f7;
  background: #fafbfe;
}
.qr-scan svg{ width: 14px; height: 14px; color: var(--blue); flex: none; }

.qr-meta{
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 10px;
  margin-top: 14px;
}
.qr-name{ font-size: 14.5px; font-weight: 600; color: var(--ink); }
.qr-loc{ font-size: 12.5px; color: var(--faint); }

.qr-divider{
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 18px 0 12px;
  color: var(--faint);
  font-size: 12px;
}
.qr-divider::before,
.qr-divider::after{ content: ""; flex: 1; height: 1px; background: #e9edf4; }

.qr-phone{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 19px;
  font-weight: 600;
  letter-spacing: .5px;
  color: var(--ink);
  text-decoration: none;
}
.qr-phone svg{ width: 17px; height: 17px; color: var(--blue); flex: none; }
.qr-phone:hover{ color: var(--blue); }

/* ---- 二维码弹窗 ---- */
.qr-modal{ position: fixed; inset: 0; z-index: 90; display: grid; place-items: center; padding: 20px; }
.qr-modal[hidden]{ display: none; }
.qr-modal-mask{
  position: absolute; inset: 0;
  background: rgba(13, 24, 46, .62);
  backdrop-filter: blur(3px);
  animation: qrFade .22s ease;
}
.qr-modal-card{
  position: relative;
  width: min(360px, 100%);
  background: #fff;
  border-radius: 14px;
  padding: 34px 30px 28px;
  text-align: center;
  color: var(--ink);
  box-shadow: 0 40px 90px -20px rgba(0, 0, 0, .55);
  animation: qrPop .26s cubic-bezier(.22, 1.1, .35, 1);
}
.qr-modal-card h3{ font-size: 21px; margin-top: 10px; }
.qr-modal-card > p{ font-size: 13.5px; color: var(--muted); margin-top: 6px; }
.qr-modal-card > p b{ color: var(--blue); font-weight: 600; }
.qr-modal-card .qr-wrap{ width: 220px; margin-top: 18px; }
.qr-modal-card .qr-divider{ margin: 14px 0 10px; }
.qr-modal-x{
  position: absolute;
  top: 12px; right: 12px;
  width: 32px; height: 32px;
  border: none;
  border-radius: 50%;
  background: #f1f4f9;
  color: var(--muted);
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: background .18s, color .18s;
}
.qr-modal-x svg{ width: 14px; height: 14px; }
.qr-modal-x:hover{ background: #e6ebf3; color: var(--ink); }
@keyframes qrFade{ from{ opacity: 0; } }
@keyframes qrPop{ from{ opacity: 0; transform: translateY(14px) scale(.96); } }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer{ padding: 38px 0 22px; }
.footer-main{
  display: flex;
  align-items: center;
  gap: 32px;
  padding-bottom: 26px;
  flex-wrap: wrap;
}
.footer-main .brand-name{ font-size: 16px; }
.footer-main .brand-sub{ font-size: 10px; letter-spacing: 1px; }
.footer-nav{
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  margin-left: auto;
}
.footer-nav a{
  font-size: 13px;
  color: var(--muted);
  transition: color .2s;
}
.footer-nav a:hover{ color: var(--blue); }
.footer-contact{
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px 14px;
  font-size: 13px;
  color: var(--faint);
}
.footer-contact a{
  font-weight: 500;
  color: var(--ink-soft);
  transition: color .3s var(--ease);
}
.footer-contact a:hover{ color: var(--blue); }

.footer-bottom{
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  border-top: 1px solid var(--line);
  padding-top: 18px;
  font-size: 12px;
  color: #8994a4;
}

/* ============================================================
   动效
   ============================================================ */
.js .reveal{
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .75s var(--ease), transform .75s var(--ease);
  transition-delay: var(--d, 0ms);
}
.js .reveal.in{ opacity: 1; transform: none; }

/* ============================================================
   01 范式对照 —— 以前 vs AI 时代
   ============================================================ */
.shift{
  border-top: 1px solid var(--line-2);
  border-bottom: 1px solid var(--line-2);
}

.shift-head,
.shift-row{
  display: grid;
  grid-template-columns: 128px minmax(0,1fr) 46px minmax(0,1.2fr);
  gap: 22px;
  align-items: center;
}

.shift-head{
  padding: 13px 0;
  border-bottom: 1px solid var(--line-2);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--faint);
}
.shift-head-now{ grid-column: 4; color: var(--blue); }

.shift-row{
  padding: 25px 0;
  border-bottom: 1px solid var(--line);
  transition: background .35s var(--ease);
}
.shift-row:last-child{ border-bottom: 0; }
.shift-row:hover{ background: linear-gradient(90deg, transparent, #f7faff 18%, #f7faff 82%, transparent); }

.shift-key{
  position: relative;
  padding-left: 15px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -.2px;
  color: var(--ink);
}
.shift-key::before{
  content: "";
  position: absolute;
  left: 0;
  top: .58em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--blue);
}

.shift-old{
  margin: 0;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--faint);
}

.shift-arrow{
  text-align: center;
  font-size: 15px;
  line-height: 1;
  color: #b8c8e6;
}

.shift-new{
  margin: 0;
  padding-left: 16px;
  border-left: 2px solid var(--blue);
  font-size: 15.5px;
  font-weight: 500;
  line-height: 1.65;
  color: var(--ink);
}

.shift-note{
  margin: 30px 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--line-2);
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--muted);
}

@media (max-width: 900px){
  .shift-head{ display: none; }
  .shift-row{
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 20px 0;
  }
  .shift-arrow{ display: none; }
  .shift-old{ font-size: 14px; }
  .shift-old::before{
    content: "以前　";
    color: #a8b2c4;
    font-size: 12.5px;
    letter-spacing: .06em;
  }
  .shift-new{ font-size: 15px; }
}

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  .js .reveal{ opacity: 1; transform: none; transition: none; }
  .dashboard, .dashboard:hover{ transform: none; }
  *{ transition-duration: .01ms !important; animation: none !important; }
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1150px){
  .container{ width: calc(100% - 48px); }
  .site-nav{ gap: 18px; }
  .site-nav a{ font-size: 13.5px; }
  .header-phone{ display: none; }
  .hero-layout{ grid-template-columns: .95fr 1.1fr; gap: 30px; }
  .hero-copy h1{ font-size: clamp(34px, 4.4vw, 50px); }
  .hero-desc{ font-size: 16px; }
  .section{ padding: 82px 0; }
  .stack-layout{ gap: 44px; }
  .about-layout, .faq-layout{ gap: 44px; }
  .contact-layout{ gap: 48px; }
  .capability{ padding: 20px; }
  .steps{ gap: 22px; }
}

@media (max-width: 980px){
  .section-heading{ flex-direction: column; align-items: flex-start; gap: 16px; }
  .section-heading > p{ text-align: left; }
  .section-heading > p br{ display: none; }
  .plans{ grid-template-columns: 1fr; gap: 18px; }
  .plan-desc{ min-height: 0; }
  .plan-featured{ order: -1; }
  .steps{ grid-template-columns: 1fr 1fr; gap: 28px 24px; }
  .stack-layout{ grid-template-columns: 1fr; gap: 36px; }
  .about-layout{ grid-template-columns: 1fr; gap: 36px; }
  .faq-layout{ grid-template-columns: 1fr; gap: 28px; }
  .contact-layout{ grid-template-columns: 1fr; gap: 34px; }
  .contact-points{ max-width: none; }
}

@media (max-width: 900px){
  .site-header{ height: 74px; }
  .menu-toggle{ display: flex; }
  .site-nav{
    position: absolute;
    top: 74px; left: 0; right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin: 0;
    padding: 12px 24px 18px;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 12px 24px -18px rgba(23,38,65,.5);
  }
  .site-nav.is-open{ display: flex; }
  .site-nav a{ padding: 12px 4px; font-size: 15px; border-bottom: 1px solid #f2f5fa; }
  .site-nav a::after{ display: none; }

  .hero{ padding-top: 46px; }
  .hero-layout{ grid-template-columns: 1fr; gap: 38px; }
  .hero-copy h1{ font-size: 42px; letter-spacing: -1.2px; }
  .hero-desc{ font-size: 16.5px; }
  .hero-visual{ width: 100%; }
  .dashboard{ transform: none; }
  .dashboard:hover{ transform: translateY(-3px); }
  .hero-foot{ margin-top: 40px; flex-direction: column; align-items: flex-start; gap: 12px; }
  .hero-foot > div{ gap: 20px; }
  .capability-grid{ grid-template-columns: 1fr; gap: 18px; }
  .cap-graphic{ height: 140px; }
  .about-side{ grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px){
  .container{ width: calc(100% - 36px); }
  .section{ padding: 62px 0; }
  .brand-name{ font-size: 16px; }
  .brand-sub{ display: none; }
  .brand-mark{ width: 30px; height: 30px; }
  .hero-copy h1{ font-size: 34px; letter-spacing: -1px; line-height: 1.3; }
  .hero-actions{ gap: 10px; }
  .hero-actions .btn{ flex: 1 1 auto; }
  .hero-notes{ gap: 14px; font-size: 12.5px; }

  .dash-body{ padding: 15px; }
  .metrics strong{ font-size: 18px; }
  .metrics small{ font-size: 10px; }
  .patrol li{ padding: 10px 0; }
  .dash-caption{ flex-direction: column; gap: 3px; }
  .dash-head h2{ font-size: 15px; }

  .steps{ grid-template-columns: 1fr; gap: 26px; }
  .about-side{ grid-template-columns: 1fr; }
  .contact-section{ padding: 56px 0; }
  .contact-card{ padding: 24px 20px; }
  .qr-modal-card{ padding: 28px 20px 22px; }
  .footer-main{ gap: 18px; }
  .footer-nav{ margin-left: 0; gap: 18px; }
  .footer-bottom{ flex-direction: column; gap: 6px; }
}