:root {
  --navy: #071730;
  --navy-800: #0b2540;
  --navy-700: #103252;
  --blue: #0b74e5;
  --cyan: #20d3c2;
  --ink: #172232;
  --muted: #5f6d7d;
  --line: #dde5ec;
  --surface: #f4f7fa;
  --cool-gray: #f5f7fa;
  --white: #ffffff;
  --radius: 18px;
  --shadow: 0 22px 70px rgba(11, 37, 64, .12);
  --container: 1200px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100%;
  color: var(--ink);
  background: var(--cool-gray);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", "Segoe UI", sans-serif;
  line-height: 1.65;
}

img, svg { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

ul { margin: 0; padding: 0; list-style: none; }

.container {
  width: min(var(--container), calc(100% - 40px));
  margin-inline: auto;
}

.section { padding: clamp(64px, 8vw, 110px) 0; }
.section.tint { background: #eaf0f7; }

.section-head {
  max-width: 760px;
  margin: 0 auto 52px;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  line-height: 1;
  margin: 0 0 14px;
  color: var(--blue);
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 24px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
}

h1, h2, h3, p { margin-top: 0; }

h1, h2 {
  color: var(--navy);
  line-height: 1.18;
  letter-spacing: -.015em;
}

.page-hero h1,
.contact-panel h2 {
  color: var(--white);
}

.contact-panel h2 {
  color: #173048;
}

h1 { font-size: clamp(2rem, 4.7vw, 3.8rem); }
h2 { font-size: clamp(1.65rem, 3.2vw, 2.5rem); }
h3 { font-size: 1.16rem; }

.section-head p, .lead {
  margin-top: 18px;
  color: var(--muted);
  font-size: 1.03rem;
}

.btn {
  --btn-bg: var(--blue);
  --btn-color: var(--white);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 12px 26px;
  border: 1px solid transparent;
  border-radius: 999px;
  background: var(--btn-bg);
  color: var(--btn-color);
  font-weight: 650;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(11, 116, 229, .24);
}

.btn.ghost {
  --btn-bg: rgba(255, 255, 255, .08);
  --btn-color: var(--white);
  border-color: rgba(255, 255, 255, .32);
  backdrop-filter: blur(10px);
}

.hero-actions .btn.ghost {
  --btn-bg: rgba(255, 255, 255, .78);
  --btn-color: var(--navy);
  border-color: #c9d5e2;
}

.btn.dark {
  --btn-bg: var(--navy);
}

.btn.outline {
  --btn-bg: transparent;
  --btn-color: var(--navy);
  border-color: #b8c6d4;
}

.btn.outline:hover {
  box-shadow: 0 14px 28px rgba(7, 23, 48, .12);
}

/* Header */
.site-header {
  position: fixed;
  z-index: 100;
  inset: 0 0 auto;
  color: var(--navy);
  background: rgba(255, 255, 255, .88);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(7, 23, 48, .06);
  transition: background .3s ease, box-shadow .3s ease;
}

.site-header.scrolled {
  background: rgba(255, 255, 255, .96);
  box-shadow: 0 8px 30px rgba(7, 23, 48, .08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.18rem;
  font-weight: 800;
  letter-spacing: .01em;
}

.brand img {
  display: block;
  flex: 0 0 auto;
  width: auto;
  max-width: 120px;
  height: 34px;
  object-fit: contain;
  object-position: left center;
}

.brand small {
  display: block;
  font-size: .64rem;
  font-weight: 500;
  opacity: .72;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: white;
  font-size: .76rem;
  font-weight: 800;
}

.nav {
  display: flex;
  align-items: center;
  gap: 26px;
  font-weight: 550;
}

.nav a:not(.btn) {
  position: relative;
  padding: 6px 0;
  opacity: .82;
}

.nav a:not(.btn)::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--blue);
  transition: width .24s ease;
}

.nav a:hover:not(.btn), .nav a.active:not(.btn) { opacity: 1; }
.nav a:hover:not(.btn)::after, .nav a.active:not(.btn)::after { width: 100%; }
.nav a.lang-switch {
  min-width: 42px;
  padding: 7px 10px;
  border: 1px solid rgba(7, 23, 48, .18);
  border-radius: 999px;
  text-align: center;
  font-size: .78rem;
  opacity: 1;
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 0;
  border-radius: 12px;
  background: transparent;
  color: var(--navy);
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 5px auto;
  background: currentColor;
}

/* Hero */
.hero {
  position: relative;
  min-height: min(860px, 100svh);
  display: flex;
  align-items: center;
  padding: 130px 0 78px;
  overflow: hidden;
  color: var(--navy);
  background:
    radial-gradient(circle at 84% 16%, rgba(32, 211, 192, .16), transparent 31%),
    radial-gradient(circle at 6% 74%, rgba(11, 116, 229, .12), transparent 36%),
    linear-gradient(135deg, #fbfdfe 0%, #eef3f9 48%, #e8eef6 100%);
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(7, 23, 48, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(7, 23, 48, .035) 1px, transparent 1px);
  background-size: 58px 58px;
  mask-image: radial-gradient(circle at 50% 40%, rgba(0,0,0,.9), transparent 75%);
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, .85fr);
  gap: clamp(32px, 6vw, 74px);
  align-items: center;
}

.hero-text > * { max-width: 680px; }

.hero-badge {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 22px;
  padding: 9px 16px;
  border: 1px solid rgba(255, 255, 255, .55);
  border-radius: 999px;
  background: linear-gradient(145deg, rgba(255,255,255,.65), rgba(255,255,255,.28));
  backdrop-filter: blur(12px) saturate(1.4);
  -webkit-backdrop-filter: blur(12px) saturate(1.4);
  box-shadow:
    0 4px 18px rgba(7, 23, 48, .07),
    inset 0 1px 0 rgba(255, 255, 255, .75),
    inset 0 -1px 2px rgba(7, 23, 48, .04);
  font-size: .82rem;
}

.hero-badge::before {
  content: "";
  position: absolute;
  top: 3px;
  left: 14px;
  width: 26px;
  height: 10px;
  border-radius: 50%;
  background: linear-gradient(180deg, rgba(255,255,255,.85), rgba(255,255,255,0));
  pointer-events: none;
}

.hero-badge strong { color: #0a66c2; }

.hero p {
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.12rem);
}

.page-hero p { color: rgba(255, 255, 255, .76); }
.hero-points {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  column-gap: 20px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.hero-points li {
  display: flex;
  gap: 10px;
  color: var(--muted);
  font-size: .94rem;
  line-height: 1.55;
}

.hero-points li::before {
  flex: 0 0 auto;
  content: "✓";
  color: var(--blue);
  font-weight: 700;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.btn-upload::before {
  content: "⬆";
  font-size: .94em;
}

.hero-security-note {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  max-width: 620px;
  margin: 18px 0 0;
  padding: 11px 13px;
  border: 1px solid #dbe4ed;
  border-radius: 12px;
  color: var(--muted);
  background: rgba(255, 255, 255, .72);
  font-size: .82rem;
  line-height: 1.5;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  width: min(620px, 100%);
  margin: 52px 0 0;
}

.hero-stat {
  padding: 18px;
  border: 1px solid #dce5ee;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .82);
}

.hero-stat strong {
  display: block;
  color: var(--navy);
  font-size: 1.6rem;
  line-height: 1.2;
}

.hero-stat span { font-size: .84rem; color: var(--muted); }

.hero-visual {
  position: relative;
  align-self: start;
  transform: none;
}

.hero-card {
  position: relative;
  max-width: 480px;
  margin-inline: auto;
  padding: 22px;
  border: 1px solid #dbe4ed;
  border-radius: 26px;
  background: rgba(255, 255, 255, .88);
  box-shadow: 0 26px 70px rgba(11, 37, 64, .12);
}

.hero-card::before {
  content: "";
  position: absolute;
  top: -38px;
  right: -38px;
  width: 130px;
  height: 130px;
  border: 1px solid rgba(11, 116, 229, .18);
  border-radius: 50%;
  pointer-events: none;
}

.hero-card::after {
  content: "";
  position: absolute;
  inset: 14px;
  border: 1px dashed rgba(11, 116, 229, .16);
  border-radius: 20px;
  pointer-events: none;
}

.part {
  filter: drop-shadow(0 18px 30px rgba(0, 0, 0, .22));
  animation: float 6s ease-in-out infinite;
}

.part-image {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: auto;
  margin: 8px auto 4px;
  border-radius: 0;
  object-fit: contain;
  box-shadow: none;
}

.part-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  position: relative;
  z-index: 1;
  margin-top: 12px;
  padding: 16px 18px;
  border: 1px solid #dce5ee;
  border-radius: 16px;
  background: #f8fafc;
}

.part-meta div span {
  display: block;
  margin-bottom: 5px;
  color: var(--muted);
  font-size: .72rem;
  font-weight: 650;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.part-meta div strong {
  display: block;
  color: var(--navy);
  font-size: .96rem;
  font-weight: 700;
  line-height: 1.35;
}

.chip {
  flex: 0 0 auto;
  padding: 8px 12px;
  border: 1px solid rgba(11, 116, 229, .16);
  border-radius: 999px;
  background: rgba(11, 116, 229, .08);
  color: #0a66c2;
  font-size: .78rem;
  font-weight: 650;
}

.material-chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 12px;
}

.material-chips span {
  padding: 6px 11px;
  border: 1px solid #dbe4ed;
  border-radius: 999px;
  color: var(--muted);
  background: rgba(245, 247, 250, .9);
  font-size: .76rem;
  font-weight: 600;
}

.finish-chips {
  margin-top: 8px;
}

.finish-chips span {
  border-color: #dbe4ed;
  color: var(--muted);
  background: rgba(245, 247, 250, .9);
}

/* Cards & grids */
.media-strip {
  display: grid;
  grid-template-columns: 1.2fr 1.6fr;
  gap: 18px;
  margin-bottom: 38px;
  align-items: start;
}

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

.media-slot {
  margin: 0;
}

.media-placeholder {
  display: grid;
  place-items: center;
  min-height: 230px;
  border: 1px dashed rgba(11, 116, 229, .35);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(11, 116, 229, .07), rgba(32, 211, 194, .09)),
    #f4f8fd;
  color: #456079;
  font-size: .95rem;
  font-weight: 600;
  text-align: center;
}

.media-placeholder svg {
  margin-bottom: 12px;
  color: #748da5;
}

.media-video .media-placeholder { min-height: 320px; color: #13293d; }
.media-grid .media-placeholder { min-height: 150px; }

.media-icon {
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  margin-bottom: 12px;
  border-radius: 50%;
  background: var(--blue);
  color: var(--white);
  font-size: 20px;
}

.media-placeholder > span:not(.media-icon) { display: block; padding: 0 20px; }
.media-slot figcaption { margin-top: 10px; color: var(--muted); font-size: .86rem; }

.product-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
}

.product-card {
  padding: 0;
}

.product-media { margin: 0; }

.product-placeholder {
  display: grid;
  place-items: center;
  min-height: 210px;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(11, 116, 229, .09), rgba(32, 211, 194, .10)),
    #f3f8fd;
  color: #466175;
  font-size: .9rem;
  font-weight: 700;
  letter-spacing: .06em;
}

.product-body { padding: 30px; }
.product-tag { display: inline-block; margin-bottom: 12px; color: var(--blue); font-size: .78rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.product-body h3 { margin-bottom: 10px; }
.product-body > p { color: var(--muted); }

.product-details {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin: 24px 0;
  padding: 20px;
  border-radius: 16px;
  background: #f5f8fc;
}

.product-details span { display: block; margin-bottom: 5px; color: var(--muted); font-size: .8rem; }
.product-details strong { font-size: .9rem; line-height: 1.4; }
.product-note { color: var(--muted); font-size: .9rem; }

.product-nav {
  position: sticky;
  top: 72px;
  z-index: 40;
  background: rgba(255,255,255,.96);
  border-block: 1px solid var(--line);
  backdrop-filter: blur(8px);
}

.product-nav-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 22px;
  padding-block: 14px;
}

button.product-nav-link {
  border: 0;
  background: none;
  cursor: pointer;
}

.product-nav-link {
  position: relative;
  padding-block: 4px;
  color: var(--muted);
  font-size: .92rem;
  font-weight: 600;
  transition: color .2s ease;
}

.product-nav-link::after {
  content: "";
  position: absolute;
  inset: auto 0 -2px;
  height: 2px;
  border-radius: 2px;
  background: var(--blue);
  opacity: 0;
  transition: opacity .2s ease;
}

.product-nav-link:hover,
.product-nav-link.active { color: var(--blue); }
.product-nav-link.active::after { opacity: 1; }

.product-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.product-card-4 {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-radius: 14px;
  background: var(--white);
  border: 1px solid var(--line);
  transition: transform .22s ease, box-shadow .22s ease;
}

.product-card-4:hover { transform: translateY(-4px); box-shadow: var(--shadow); }

.product-card-4 img {
  width: 100%;
  height: auto;
  aspect-ratio: 1;
  object-fit: cover;
}

.pagination {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 40px;
}

.page-btn,
.page-num,
.page-go {
  display: inline-grid;
  place-items: center;
  min-width: 38px;
  height: 38px;
  padding: 0 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  color: var(--ink);
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color .2s ease, color .2s ease, background .2s ease;
}

.page-btn:disabled { opacity: .35; cursor: default; }
.page-btn:not(:disabled):hover,
.page-num:not(.active):hover,
.page-go:hover { border-color: var(--blue); color: var(--blue); }
.page-num.active { background: var(--blue); border-color: var(--blue); color: var(--white); }
.page-go { background: var(--blue); border-color: var(--blue); color: var(--white); font-size: .78rem; letter-spacing: .06em; }
.page-go:hover { filter: brightness(1.08); }

.page-jump { display: inline-flex; align-items: center; gap: 6px; margin-left: 6px; }

.page-jump input {
  width: 56px;
  height: 38px;
  padding: 0 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font: inherit;
  font-size: .9rem;
  text-align: center;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 24px;
}

.card {
  height: 100%;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 0 0 rgba(0,0,0,0);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}

.card:hover {
  transform: translateY(-8px);
  border-color: rgba(11, 116, 229, .2);
  box-shadow: var(--shadow);
}

.icon {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  margin-bottom: 20px;
  border-radius: 16px;
  background: #eaf3ff;
  color: var(--blue);
}

.card h3 { margin-bottom: 10px; }
.card p, .list li { color: var(--muted); }

.list {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.list li { padding-left: 20px; position: relative; font-size: .95rem; }
.list li::before {
  content: "";
  position: absolute;
  top: .6em;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 24px;
}

.history-metrics {
  grid-template-columns: repeat(4, minmax(0,1fr));
}

.metric {
  padding: 28px;
  border-radius: var(--radius);
  color: var(--white);
  background: linear-gradient(145deg, var(--navy), #163a60);
}

.metric-accent {
  background: linear-gradient(145deg, #123c67, #0f8f84);
}
.metric strong { display: block; font-size: clamp(1.6rem, 4vw, 2.2rem); color: var(--cyan); }
.metric span { font-size: .9rem; color: rgba(255,255,255,.72); }
.metric-detail { display: block; margin-top: 12px; padding-top: 10px; border-top: 1px solid rgba(255,255,255,.14); }

/* Split */
.split {
  display: grid;
  grid-template-columns: 1.02fr .98fr;
  gap: clamp(32px, 6vw, 70px);
  align-items: center;
}

.split-content h2, .split-content p { max-width: 620px; }
.split-visual {
  overflow: hidden;
  border-radius: var(--radius);
  background: linear-gradient(145deg, #eaf3ff, #d8f7f3);
  box-shadow: var(--shadow);
}

.split-visual img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.about-visual {
  aspect-ratio: 3 / 2;
}

.about-visual img {
  height: 100%;
  object-position: 72% center;
}

.capability-visual {
  justify-self: center;
  width: min(380px, 100%);
}

.capability-visual img {
  display: block;
  width: 100%;
  height: auto;
}

.service-visual {
  justify-self: center;
  width: min(440px, 100%);
  aspect-ratio: 4 / 5;
}

.service-visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.process {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 18px;
}

.process-card:first-child { grid-column-start: auto; }

.process-card {
  position: relative;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.process-card::after {
  content: "→";
  position: absolute;
  right: -23px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 1;
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--navy);
  color: var(--white);
  font-size: .9rem;
  line-height: 1;
}

.process-card:last-child::after { display: none; }

@media (min-width: 981px) {
  .process-card h3 {
    min-height: 2.6em;
    line-height: 1.3;
  }
}

.step {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  margin-bottom: 16px;
  border-radius: 50%;
  background: var(--navy);
  color: var(--white);
  font-size: .82rem;
  font-weight: 700;
}

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

table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  text-align: left;
}

th, td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--line);
  font-size: .94rem;
}

th {
  color: var(--navy);
  background: #edf4fb;
  white-space: nowrap;
}

td { color: var(--muted); }
td strong { color: var(--navy); }
tbody tr:last-child td { border-bottom: 0; }

.industry-card {
  position: relative;
  overflow: hidden;
  min-height: 240px;
  padding: 30px;
  border-radius: var(--radius);
  color: var(--white);
  display: flex;
  align-items: flex-end;
  background: linear-gradient(165deg, rgba(7, 23, 48, .96), rgba(15, 49, 82, .9));
}

.industry-card::before {
  content: "";
  position: absolute;
  inset: auto -20px -60px auto;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, rgba(32,211,194,.32), transparent);
}

.industry-card h3, .industry-card p { position: relative; }
.industry-card p { margin: 0; font-size: .92rem; color: rgba(255,255,255,.7); }
.industry-card h3 { margin-bottom: 6px; }

/* Contact */
.contact-layout {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 26px;
}

.contact-panel { order: 2; }
.form-card { order: 1; }

.contact-panel {
  padding: 34px;
  border-radius: var(--radius);
  border: 1px solid #d8e1ea;
  color: #2b2b2b;
  background: linear-gradient(155deg, #f9fbfd, #edf2f7);
  box-shadow: 0 18px 44px rgba(23, 48, 72, .10);
}

.contact-panel ul { margin-top: 22px; display: grid; gap: 20px; }
.contact-panel span { display: block; color: #555555; font-size: .84rem; }
.contact-panel strong { color: #173048; }
.contact-panel strong a { color: #173048; }
.contact-panel strong a:hover { color: #0f2235; }
.contact-panel li:nth-child(4) strong,
.contact-panel li:nth-child(5) strong { color: #2b2b2b; }

.form-card {
  padding: clamp(26px, 4vw, 42px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow);
}

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

.field { display: grid; gap: 7px; }
.field.full, .form-grid .full { grid-column: 1 / -1; }

label {
  font-size: .9rem;
  font-weight: 650;
}

input, select, textarea {
  width: 100%;
  min-height: 48px;
  padding: 13px 14px;
  border: 1px solid #c9d5e0;
  border-radius: 12px;
  background: #fbfdff;
  color: var(--ink);
  font: inherit;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}

textarea { min-height: 130px; resize: vertical; }
input:focus, select:focus, textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 4px rgba(11,116,229,.12);
}

.form-note { margin: 14px 0 0; color: var(--muted); font-size: .84rem; }
.contact-panel li small { display: block; margin-top: 4px; color: #555555; font-size: .82rem; }
.panel-note { margin: 24px 0 0; padding-top: 20px; border-top: 1px solid #d8e1ea; color: #555555; font-size: .86rem; }
.upload-field { position: relative; }
.upload-box {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 64px;
  padding: 12px;
  border: 1px dashed #a8bfd2;
  border-radius: 14px;
  background: #f7fbff;
  color: var(--muted);
  font-size: .88rem;
  cursor: pointer;
}
.upload-box:hover, .upload-box:focus-within { border-color: var(--blue); box-shadow: 0 0 0 4px rgba(11,116,229,.10); }
.file-input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.upload-button {
  flex: 0 0 auto;
  padding: 10px 16px;
  border-radius: 999px;
  background: var(--navy);
  color: var(--white);
  font-weight: 650;
}
.file-status { margin: 10px 0 0; color: var(--muted); font-size: .84rem; overflow-wrap: anywhere; }
.help-note { margin: 12px 0 0; color: var(--muted); font-size: .88rem; line-height: 1.6; }
.help-note a { color: var(--blue); font-weight: 650; }
.privacy-note {
  display: block;
  margin-top: 10px;
  padding: 10px 12px;
  border-left: 3px solid var(--cyan);
  background: #effaf8;
  color: #32635c;
  font-size: .8rem;
}
.hidden-field {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

.floating-contact {
  position: fixed;
  z-index: 80;
  right: clamp(14px, 2vw, 28px);
  bottom: clamp(18px, 4vw, 34px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.floating-contact__whatsapp {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  overflow: hidden;
  color: white;
  background: #25d366;
  box-shadow: 0 10px 26px rgba(17, 43, 30, .22);
  transition: transform .25s ease, box-shadow .25s ease;
}

.floating-contact__whatsapp svg { width: 31px; height: 31px; }

.floating-contact__whatsapp:hover,
.floating-contact__whatsapp:focus-visible {
  transform: translateY(-3px);
  box-shadow: 0 14px 30px rgba(17, 43, 30, .28);
}

.floating-contact__wechat {
  display: grid;
  justify-items: center;
  gap: 4px;
  width: 100px;
  padding: 8px 6px 7px;
  border: 1px solid rgba(15, 43, 66, .08);
  border-radius: 16px;
  overflow: hidden;
  background: rgba(255, 255, 255, .96);
  box-shadow: 0 12px 30px rgba(9, 30, 49, .16);
}

.floating-contact__wechat img {
  display: block;
  width: 82px;
  height: 82px;
  object-fit: cover;
  border-radius: 10px;
}

.floating-contact__wechat span {
  color: var(--navy);
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .04em;
}

/* Footer */
.site-footer {
  color: #aab7c4;
  background: var(--navy);
  padding: 64px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, .65fr);
  gap: 40px;
  padding-bottom: 38px;
  border-bottom: 1px solid rgba(255,255,255,.12);
}

.site-footer .brand { color: white; }
.site-footer .brand img { height: 28px; max-width: 100px; }
.footer-grid h3 { margin: 8px 0 18px; color: white; font-size: 1rem; }
.footer-grid ul { display: grid; gap: 11px; font-size: .92rem; }
.footer-grid a:hover { color: var(--cyan); }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 26px;
  font-size: .82rem;
}

.footer-social {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-social .social-icon {
  display: inline-grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  color: rgba(255,255,255,.82);
  background: rgba(255,255,255,.08);
}

.footer-social .social-icon svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

/* Page banner + content */
.page-hero {
  padding: 148px 0 74px;
  color: var(--white);
  background:
    radial-gradient(circle at 86% 28%, rgba(32,211,194,.25), transparent 30%),
    linear-gradient(135deg, var(--navy), #154063);
}

.page-hero h1 { max-width: 820px; }
.page-hero p { max-width: 700px; margin: 20px 0 0; color: rgba(255,255,255,.75); }
.breadcrumb { font-size: .84rem; opacity: .68; }
.breadcrumb a:hover { color: var(--cyan); }

.content-section { padding: clamp(56px, 7vw, 94px) 0; }
.narrow { width: min(880px, calc(100% - 40px)); margin-inline: auto; }

/* Animation */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .65s ease, transform .65s ease;
}

.reveal.visible { opacity: 1; transform: translateY(0); }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-16px); }
}

/* Responsive */
@media (max-width: 980px) {
  .hero-grid, .split, .contact-layout { grid-template-columns: 1fr; }
  .hero-visual { transform: none; }
  .hero-points { grid-template-columns: 1fr; }
  .media-strip { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: 1fr; }
  .product-details { grid-template-columns: 1fr; }
  .product-grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .product-nav { top: 62px; }
  .product-nav-inner { gap: 4px 16px; }
  .hero { min-height: auto; }
  .metrics, .process { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .process-card::after { display: none; }
  .process-card:first-child { grid-column-start: auto; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav {
    position: fixed;
    z-index: 90;
    inset: 76px 0 auto;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    width: 100%;
    padding: 20px 20px 28px;
    background: rgba(255,255,255,.98);
    color: var(--navy);
    visibility: hidden;
    transform: translateY(-125%);
    transition: transform .28s ease, visibility 0s linear .28s;
  }
  .nav.open { visibility: visible; transform: translateY(0); transition: transform .28s ease; }
  .nav a:not(.btn) { width: 100%; padding: 10px 0; }
  .nav .btn { width: 100%; margin-top: 8px; }
  .menu-toggle { display: block; }
}

@media (max-width: 640px) {
  .hero-stats, .form-grid { grid-template-columns: 1fr; }
  .metrics, .process, .footer-grid { grid-template-columns: 1fr; }
  .hero-card { padding: 20px; }
  .hero-card::before { display: none; }
  .hero-card .part-meta { flex-direction: column; align-items: flex-start; }
  .footer-bottom { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}