:root {
  --ink: #112724;
  --ink-soft: #49615d;
  --green: #19c797;
  --green-dark: #078064;
  --green-pale: #dff7ef;
  --navy: #071f23;
  --navy-2: #0b2d31;
  --line: #d8e4e0;
  --paper: #f5f8f6;
  --white: #fff;
  --shadow: 0 22px 60px rgba(10, 45, 42, .11);
  --radius: 24px;
  --container: min(1180px, calc(100vw - 48px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, a { -webkit-tap-highlight-color: transparent; }
.container { width: var(--container); margin: 0 auto; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: fixed;
  z-index: 50;
  inset: 0 0 auto;
  height: 76px;
  color: #fff;
  transition: background .3s ease, box-shadow .3s ease;
}
.site-header.scrolled {
  background: rgba(7, 31, 35, .94);
  box-shadow: 0 10px 32px rgba(0, 0, 0, .16);
  backdrop-filter: blur(14px);
}
.nav-shell {
  width: var(--container);
  height: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 16px;
  min-width: 0;
}
.brand img { width: 120px; height: auto; }
.brand span {
  font-size: 13px;
  color: rgba(255,255,255,.75);
  white-space: nowrap;
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14px;
}
.site-nav > a:not(.nav-login) {
  position: relative;
  color: rgba(255,255,255,.78);
  transition: color .2s ease;
}
.site-nav > a:not(.nav-login)::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: -8px;
  height: 2px;
  background: var(--green);
  transition: right .2s ease;
}
.site-nav > a:hover { color: #fff; }
.site-nav > a:hover::after { right: 0; }
.nav-login {
  padding: 11px 18px;
  border: 1px solid rgba(255,255,255,.3);
  border-radius: 999px;
  background: rgba(255,255,255,.08);
  font-weight: 650;
  transition: background .2s ease, border-color .2s ease;
}
.nav-login:hover {
  background: var(--green);
  border-color: var(--green);
  color: var(--navy);
}
.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 10px;
  border: 0;
  background: transparent;
}
.menu-toggle > span:not(.sr-only) {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: #fff;
  transition: transform .2s ease, opacity .2s ease;
}

.hero {
  position: relative;
  min-height: 790px;
  overflow: hidden;
  color: #fff;
  background:
    radial-gradient(circle at 78% 30%, rgba(24,199,151,.17), transparent 30%),
    linear-gradient(128deg, #061b20 0%, #0a2b30 58%, #083c3a 100%);
}
.hero-grid {
  position: absolute;
  inset: 0;
  opacity: .18;
  background-image:
    linear-gradient(rgba(255,255,255,.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.08) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to right, #000, transparent 84%);
}
.hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 160px;
  background: linear-gradient(transparent, rgba(2,19,22,.62));
  pointer-events: none;
}
.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(2px);
  border: 1px solid rgba(77, 233, 191, .18);
}
.hero-glow-one { width: 500px; height: 500px; top: 80px; right: -180px; }
.hero-glow-two { width: 280px; height: 280px; bottom: -120px; left: 18%; }
.hero-layout {
  position: relative;
  z-index: 2;
  min-height: 790px;
  padding: 154px 0 100px;
  display: grid;
  grid-template-columns: minmax(0, 1.16fr) minmax(400px, .84fr);
  align-items: center;
  gap: 42px;
}
.eyebrow {
  margin: 0 0 22px;
  color: var(--green);
  font-size: 12px;
  font-weight: 750;
  letter-spacing: .2em;
}
.eyebrow.dark { color: var(--green-dark); }
.hero h1 {
  margin: 0;
  font-size: clamp(46px, 4.45vw, 64px);
  line-height: 1.12;
  letter-spacing: -.04em;
}
.hero-lead {
  max-width: 650px;
  margin: 28px 0 0;
  color: rgba(255,255,255,.72);
  font-size: 18px;
  line-height: 1.85;
}
.hero-actions {
  margin-top: 38px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.button {
  min-height: 52px;
  padding: 0 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  border-radius: 4px;
  font-size: 15px;
  font-weight: 700;
  transition: transform .2s ease, background .2s ease, border-color .2s ease;
}
.button:hover { transform: translateY(-2px); }
.button-primary { color: #06231f; background: var(--green); }
.button-primary:hover { background: #42ddb4; }
.button-ghost { color: #fff; border: 1px solid rgba(255,255,255,.25); background: rgba(255,255,255,.04); }
.button-ghost:hover { border-color: rgba(255,255,255,.55); background: rgba(255,255,255,.08); }
.button-dark { color: #fff; background: var(--navy); }
.button-dark:hover { background: var(--green-dark); }
.hero-meta {
  margin-top: 56px;
  display: flex;
  gap: 38px;
}
.hero-meta div {
  position: relative;
  min-width: 112px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.hero-meta div + div::before {
  content: "";
  position: absolute;
  left: -19px;
  top: 4px;
  bottom: 4px;
  width: 1px;
  background: rgba(255,255,255,.16);
}
.hero-meta strong { font-size: 19px; }
.hero-meta span { color: rgba(255,255,255,.5); font-size: 12px; }

.hero-visual {
  position: relative;
  min-height: 520px;
  display: grid;
  place-items: center;
}
.visual-orbit {
  position: relative;
  width: 470px;
  height: 470px;
}
.orbit-ring {
  position: absolute;
  inset: 50%;
  border: 1px solid rgba(105,231,195,.2);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}
.ring-one { width: 210px; height: 210px; }
.ring-two { width: 335px; height: 335px; border-style: dashed; animation: spin 40s linear infinite; }
.ring-three { width: 460px; height: 460px; }
@keyframes spin { to { transform: translate(-50%, -50%) rotate(360deg); } }
.core {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 154px;
  height: 154px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 35% 30%, #1fc59b, #087a68);
  box-shadow: 0 0 80px rgba(25,199,151,.35);
}
.core span { font-size: 13px; color: rgba(255,255,255,.72); }
.core strong { margin-top: 4px; font-size: 24px; }
.orbit-node {
  position: absolute;
  min-width: 132px;
  padding: 13px 16px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(4,30,34,.78);
  box-shadow: 0 15px 30px rgba(0,0,0,.18);
  backdrop-filter: blur(8px);
  font-size: 13px;
}
.orbit-node span { margin-right: 7px; color: var(--green); font-family: monospace; }
.node-one { top: 23px; left: 50%; transform: translateX(-50%); }
.node-two { right: -8px; top: 50%; transform: translateY(-50%); }
.node-three { bottom: 23px; left: 50%; transform: translateX(-50%); }
.node-four { left: -8px; top: 50%; transform: translateY(-50%); }
.visual-caption {
  position: absolute;
  right: 8px;
  bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,.45);
  font-size: 11px;
  letter-spacing: .08em;
}
.visual-caption i { width: 15px; height: 1px; background: rgba(255,255,255,.2); }

.trust-strip { background: #fff; border-bottom: 1px solid var(--line); }
.trust-grid {
  min-height: 82px;
  display: grid;
  grid-template-columns: .7fr repeat(4, 1fr);
  align-items: center;
  gap: 18px;
  font-size: 13px;
}
.trust-grid span { color: var(--green-dark); font-weight: 700; }
.trust-grid strong { color: var(--ink-soft); font-weight: 600; }

.section { padding: 112px 0; }
.section-heading {
  margin-bottom: 54px;
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  align-items: end;
  gap: 80px;
}
.section-heading h2,
.quality-copy h2,
.about-copy h2,
.contact h2 {
  margin: 0;
  font-size: clamp(34px, 4vw, 52px);
  line-height: 1.18;
  letter-spacing: -.035em;
}
.section-heading > p,
.section-heading.light > p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.85;
}
.section-heading.light h2 { color: #fff; }
.section-heading.light > p { color: rgba(255,255,255,.62); }

.services { background: var(--paper); }
.service-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.service-card {
  position: relative;
  min-height: 410px;
  padding: 42px;
  overflow: hidden;
  background: #fff;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  transition: transform .25s ease, box-shadow .25s ease;
}
.service-card:hover {
  z-index: 2;
  transform: translateY(-5px);
  box-shadow: var(--shadow);
}
.service-number {
  position: absolute;
  right: 32px;
  top: 24px;
  color: #e3ece8;
  font: 700 48px/1 monospace;
}
.service-icon {
  position: relative;
  width: 62px;
  height: 62px;
  margin-bottom: 34px;
  border-radius: 16px;
  background: var(--green-pale);
}
.service-card h3 { margin: 0 0 15px; font-size: 25px; }
.service-card p { margin: 0; color: var(--ink-soft); font-size: 14px; line-height: 1.8; }
.service-card ul { margin: 24px 0 0; padding: 0; list-style: none; }
.service-card li {
  position: relative;
  margin: 10px 0;
  padding-left: 18px;
  color: #38514d;
  font-size: 13px;
}
.service-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
}
.equipment-icon i { position: absolute; bottom: 15px; width: 11px; background: var(--green-dark); }
.equipment-icon i:nth-child(1) { left: 13px; height: 18px; }
.equipment-icon i:nth-child(2) { left: 27px; height: 30px; }
.equipment-icon i:nth-child(3) { left: 41px; height: 24px; }
.vision-icon::before {
  content: "";
  position: absolute;
  inset: 16px 11px;
  border: 3px solid var(--green-dark);
  border-radius: 50% 12px;
}
.vision-icon i:first-child {
  position: absolute;
  left: 26px;
  top: 26px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--green-dark);
}
.software-icon i { position: absolute; height: 3px; background: var(--green-dark); left: 16px; right: 16px; }
.software-icon i:nth-child(1) { top: 19px; }
.software-icon i:nth-child(2) { top: 29px; right: 25px; }
.software-icon i:nth-child(3) { top: 39px; right: 20px; }
.ai-icon i { position: absolute; width: 10px; height: 10px; border: 2px solid var(--green-dark); border-radius: 50%; }
.ai-icon i:nth-child(1) { left: 14px; top: 14px; }
.ai-icon i:nth-child(2) { right: 14px; top: 14px; }
.ai-icon i:nth-child(3) { left: 14px; bottom: 14px; }
.ai-icon i:nth-child(4) { right: 14px; bottom: 14px; }
.ai-icon::before, .ai-icon::after {
  content: "";
  position: absolute;
  background: var(--green-dark);
}
.ai-icon::before { left: 19px; right: 19px; top: 29px; height: 2px; }
.ai-icon::after { top: 19px; bottom: 19px; left: 29px; width: 2px; }

.scenarios {
  color: #fff;
  background: linear-gradient(135deg, #061d22, #0a3636);
}
.process-map {
  padding: 36px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.035);
}
.process-origin {
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-left: 4px solid var(--green);
  background: rgba(255,255,255,.07);
}
.process-origin span { color: var(--green); font-size: 12px; font-weight: 700; letter-spacing: .08em; }
.process-origin strong { font-size: 20px; }
.process-branches {
  margin: 18px 0 28px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.branch {
  padding: 20px;
  border: 1px solid rgba(255,255,255,.1);
}
.branch-name { margin-bottom: 15px; color: var(--green); font-size: 15px; font-weight: 700; }
.branch-items { display: flex; flex-wrap: wrap; gap: 8px; }
.branch-items span {
  padding: 7px 9px;
  color: rgba(255,255,255,.68);
  border: 1px solid rgba(255,255,255,.1);
  font-size: 11px;
}
.process-flow {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
}
.process-flow div {
  position: relative;
  min-height: 145px;
  padding: 22px;
  border-top: 1px solid rgba(255,255,255,.14);
  border-bottom: 1px solid rgba(255,255,255,.14);
  border-left: 1px solid rgba(255,255,255,.14);
}
.process-flow div:last-child { border-right: 1px solid rgba(255,255,255,.14); }
.process-flow div:not(:last-child)::after {
  content: "";
  position: absolute;
  z-index: 2;
  right: -5px;
  top: 50%;
  width: 9px;
  height: 9px;
  border-top: 1px solid var(--green);
  border-right: 1px solid var(--green);
  transform: translateY(-50%) rotate(45deg);
}
.process-flow em { color: var(--green); font: normal 12px monospace; }
.process-flow strong { display: block; margin: 12px 0 8px; font-size: 18px; }
.process-flow span { color: rgba(255,255,255,.48); font-size: 11px; line-height: 1.6; }

.quality { background: #fff; }
.quality-layout {
  display: grid;
  grid-template-columns: .87fr 1.13fr;
  align-items: center;
  gap: 80px;
}
.quality-copy > p:not(.eyebrow) {
  margin: 28px 0 0;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.9;
}
.quality-tags { margin-top: 30px; display: flex; flex-wrap: wrap; gap: 10px; }
.quality-tags span {
  padding: 10px 13px;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--green-dark);
  font-size: 12px;
  font-weight: 700;
}
.quality-system {
  position: relative;
  min-height: 520px;
  display: grid;
  place-items: center;
  background:
    linear-gradient(rgba(13,114,94,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(13,114,94,.055) 1px, transparent 1px);
  background-size: 38px 38px;
  border: 1px solid var(--line);
}
.system-center {
  position: absolute;
  z-index: 2;
  width: 190px;
  height: 190px;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #fff;
  background: var(--navy);
  box-shadow: 0 18px 46px rgba(7,31,35,.24);
}
.system-center span { color: var(--green); font-size: 12px; }
.system-center strong { margin-top: 7px; font-size: 18px; }
.system-grid {
  width: 100%;
  height: 100%;
  padding: 26px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: repeat(3, 1fr);
  gap: 16px;
}
.system-grid div {
  padding: 18px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.82);
}
.system-grid div:nth-child(even) { justify-content: flex-end; text-align: right; }
.system-grid b {
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  color: #fff;
  background: var(--green-dark);
}
.system-grid span { max-width: 130px; color: var(--ink-soft); font-size: 11px; line-height: 1.6; }

.cases { background: #edf3f0; }
.case-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.case-card {
  overflow: hidden;
  background: #fff;
  box-shadow: 0 15px 42px rgba(16,49,44,.07);
}
.case-visual {
  position: relative;
  height: 250px;
  overflow: hidden;
  display: grid;
  place-items: center;
  color: rgba(255,255,255,.5);
  background:
    linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px),
    #09282b;
  background-size: 34px 34px;
}
.case-code {
  position: absolute;
  left: 24px;
  top: 20px;
  color: var(--green);
  font: 700 13px monospace;
}
.case-visual > span {
  position: absolute;
  right: 20px;
  bottom: 16px;
  font: 10px monospace;
  letter-spacing: .16em;
}
.line-machine {
  position: relative;
  width: 300px;
  height: 92px;
  border-bottom: 3px solid var(--green);
}
.line-machine i { position: absolute; bottom: 3px; border: 2px solid rgba(255,255,255,.68); }
.line-machine i:nth-child(1) { left: 0; width: 74px; height: 48px; }
.line-machine i:nth-child(2) { left: 84px; width: 55px; height: 72px; }
.line-machine i:nth-child(3) { left: 151px; width: 88px; height: 55px; }
.line-machine i:nth-child(4) { right: 0; width: 48px; height: 82px; }
.vial-line {
  width: 330px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  padding-bottom: 6px;
  border-bottom: 3px solid var(--green);
}
.vial-line i {
  position: relative;
  width: 45px;
  height: 70px;
  border: 2px solid rgba(255,255,255,.68);
  border-radius: 5px 5px 10px 10px;
}
.vial-line i::before {
  content: "";
  position: absolute;
  width: 21px;
  height: 14px;
  left: 10px;
  top: -16px;
  border: 2px solid rgba(255,255,255,.68);
}
.case-content { padding: 30px; }
.case-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.case-tags span {
  padding: 6px 9px;
  color: var(--green-dark);
  background: var(--green-pale);
  font-size: 11px;
  font-weight: 700;
}
.case-content h3 { margin: 20px 0 12px; font-size: 24px; }
.case-content > p { min-height: 76px; margin: 0; color: var(--ink-soft); font-size: 14px; line-height: 1.8; }
.case-result {
  margin-top: 22px;
  padding-top: 18px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid var(--line);
}
.case-result span { color: var(--green-dark); font-size: 11px; font-weight: 700; }
.case-result strong { font-size: 12px; text-align: right; }
.case-login {
  margin-top: 24px;
  padding: 34px 38px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  border-left: 5px solid var(--green);
  background: #fff;
}
.case-login > div { display: flex; flex-direction: column; gap: 6px; }
.case-login > div > span { color: var(--green-dark); font: 700 10px monospace; letter-spacing: .15em; }
.case-login strong { font-size: 20px; }
.case-login p { margin: 0; color: var(--ink-soft); font-size: 13px; }

.delivery { background: #fff; }
.delivery-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.delivery-steps > div {
  position: relative;
  min-height: 190px;
  padding: 28px 24px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.delivery-steps b {
  display: block;
  color: var(--green);
  font: 700 13px monospace;
}
.delivery-steps strong { display: block; margin: 32px 0 12px; font-size: 16px; }
.delivery-steps span { color: var(--ink-soft); font-size: 11px; line-height: 1.65; }
.delivery-steps > div:not(:last-child)::after {
  content: "→";
  position: absolute;
  z-index: 2;
  right: -13px;
  top: 25px;
  width: 25px;
  height: 25px;
  display: grid;
  place-items: center;
  color: var(--green-dark);
  background: #fff;
  font-size: 13px;
}

.about { background: var(--paper); }
.about-layout {
  display: grid;
  grid-template-columns: 1.08fr .92fr;
  align-items: center;
  gap: 78px;
}
.about-image {
  position: relative;
  min-height: 460px;
  overflow: hidden;
}
.about-image img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.about-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(transparent 45%, rgba(5,30,34,.82));
}
.image-label {
  position: absolute;
  z-index: 2;
  left: 30px;
  right: 30px;
  bottom: 26px;
  color: #fff;
}
.image-label span { display: block; margin-bottom: 8px; color: var(--green); font: 700 10px monospace; letter-spacing: .16em; }
.image-label strong { font-size: 18px; }
.about-copy > p:not(.eyebrow) { margin: 22px 0 0; color: var(--ink-soft); font-size: 15px; line-height: 1.9; }
.about-points { margin-top: 30px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.about-points span {
  padding: 14px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--green-dark);
  font-size: 12px;
  font-weight: 700;
}

.contact {
  padding: 88px 0;
  color: #fff;
  background: var(--navy);
}
.contact-layout { display: flex; align-items: end; justify-content: space-between; gap: 60px; }
.contact h2 { font-size: clamp(34px, 4vw, 50px); }
.contact p:not(.eyebrow) { max-width: 680px; margin: 18px 0 0; color: rgba(255,255,255,.58); line-height: 1.8; }
.contact-actions { display: flex; flex: 0 0 auto; gap: 12px; }

footer { padding: 28px 0; color: rgba(255,255,255,.5); background: #041518; }
.footer-layout { display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.footer-brand { display: flex; align-items: center; gap: 16px; }
.footer-brand img { width: 92px; }
.footer-brand span { font-size: 11px; }
.footer-meta { display: flex; gap: 24px; font-size: 10px; }

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .65s ease, transform .65s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (max-width: 1080px) {
  :root { --container: min(100% - 40px, 960px); }
  .brand span { display: none; }
  .site-nav { gap: 18px; }
  .hero-layout { grid-template-columns: 1.08fr .72fr; }
  .visual-orbit { width: 380px; height: 380px; }
  .ring-three { width: 370px; height: 370px; }
  .ring-two { width: 282px; height: 282px; }
  .ring-one { width: 190px; height: 190px; }
  .section-heading { gap: 40px; }
  .quality-layout, .about-layout { gap: 44px; }
  .delivery-steps { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 820px) {
  :root { --container: calc(100vw - 32px); }
  .site-header { height: 68px; background: rgba(7,31,35,.94); }
  .brand img { width: 110px; }
  .menu-toggle { display: block; }
  .menu-toggle[aria-expanded="true"] > span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] > span:nth-child(2) { opacity: 0; }
  .menu-toggle[aria-expanded="true"] > span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .site-nav {
    position: fixed;
    inset: 68px 0 0;
    padding: 32px 24px;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #071f23;
    transform: translateX(100%);
    transition: transform .25s ease;
  }
  .site-nav.open { transform: translateX(0); }
  .site-nav > a { padding: 16px 4px; border-bottom: 1px solid rgba(255,255,255,.1); }
  .site-nav > a:not(.nav-login)::after { display: none; }
  .nav-login { margin-top: 18px; text-align: center; border-radius: 3px; }
  .hero, .hero-layout { min-height: auto; }
  .hero-layout {
    padding: 128px 0 80px;
    grid-template-columns: 1fr;
  }
  .hero h1 { font-size: clamp(42px, 11vw, 62px); }
  .hero-visual { min-height: 420px; }
  .visual-orbit { width: 370px; height: 370px; }
  .hero-meta { gap: 26px; }
  .trust-grid {
    padding: 22px 0;
    grid-template-columns: repeat(2, 1fr);
  }
  .trust-grid span { grid-column: 1 / -1; }
  .section { padding: 82px 0; }
  .section-heading { grid-template-columns: 1fr; gap: 22px; }
  .service-grid, .case-grid { grid-template-columns: 1fr; }
  .process-branches { grid-template-columns: 1fr; }
  .process-flow { grid-template-columns: 1fr; }
  .process-flow div { min-height: auto; }
  .process-flow div:last-child { border-right: 0; border-left: 1px solid rgba(255,255,255,.14); }
  .process-flow div:not(:last-child)::after {
    right: auto;
    left: 30px;
    top: auto;
    bottom: -5px;
    transform: rotate(135deg);
  }
  .quality-layout, .about-layout { grid-template-columns: 1fr; }
  .quality-system { min-height: 480px; }
  .case-login, .contact-layout { align-items: flex-start; flex-direction: column; }
  .delivery-steps { grid-template-columns: repeat(2, 1fr); }
  .footer-layout { align-items: flex-start; flex-direction: column; }
  .footer-meta { flex-wrap: wrap; gap: 12px 20px; }
}

@media (max-width: 520px) {
  .hero-lead { font-size: 16px; }
  .hero-actions, .contact-actions { flex-direction: column; align-items: stretch; }
  .hero-meta { display: grid; grid-template-columns: repeat(2, 1fr); }
  .hero-meta div + div::before { display: none; }
  .hero-visual { min-height: 340px; transform: scale(.82); margin: -30px -40px; }
  .visual-caption { display: none; }
  .service-card { min-height: auto; padding: 32px 26px; }
  .process-map { padding: 18px; }
  .process-origin { align-items: flex-start; flex-direction: column; gap: 8px; }
  .quality-system { min-height: 560px; }
  .system-center { width: 150px; height: 150px; }
  .system-grid { padding: 12px; gap: 8px; }
  .system-grid div { padding: 10px; flex-direction: column; }
  .system-grid div:nth-child(even) { align-items: flex-end; }
  .case-visual { height: 210px; }
  .line-machine, .vial-line { transform: scale(.78); }
  .case-content { padding: 24px; }
  .case-result { align-items: flex-start; flex-direction: column; }
  .case-result strong { text-align: left; }
  .case-login { padding: 26px; }
  .delivery-steps { grid-template-columns: 1fr; }
  .delivery-steps > div { min-height: 150px; }
  .delivery-steps > div:not(:last-child)::after { display: none; }
  .about-image { min-height: 340px; }
  .about-points { grid-template-columns: 1fr; }
}

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