/* ==========================================================================
   rocodan.top — White Glassmorphism / Green Glow
   Design tokens
   ========================================================================== */
:root {
  /* ---- Surfaces (white glass) ---- */
  --bg-base: #f1f2f4;
  --bg-deep: #e6efea;
  --bg-raise: #e2ece7;
  --bg-card: rgba(255, 255, 255, 0.62);
  --bg-card-strong: rgba(255, 255, 255, 0.76);
  --bg-chip: rgba(255, 255, 255, 0.7);
  --bg-nav: rgba(255, 255, 255, 0.66);
  --bg-float: rgba(255, 255, 255, 0.9);
  --bg-media: #ffffff;

  /* ---- Brand green ramp (readable on white) ---- */
  --green-500: #0fa968;
  --green-400: #12c67c;
  --green-300: #0e9a5f;
  --green-200: #0b7d4e;
  --green-teal: #0b9c8e;
  --green-lime: #5c9a1f;
  --green-deep: #0a5c42;

  /* ---- Alpha greens (glass fills / borders) ---- */
  --green-a08: rgba(15, 169, 104, 0.08);
  --green-a12: rgba(15, 169, 104, 0.12);
  --green-a16: rgba(15, 169, 104, 0.16);
  --green-a22: rgba(15, 169, 104, 0.22);
  --green-a30: rgba(15, 169, 104, 0.3);
  --green-a45: rgba(15, 169, 104, 0.45);
  --green-a55: rgba(15, 169, 104, 0.55);
  --green-a75: rgba(15, 169, 104, 0.72);

  /* ---- Text (high contrast on light glass) ---- */
  --text-hi: #071410;
  --text-1: #12271f;
  --text-2: #26403a;
  --text-3: #3b5a52;
  --text-4: #4b6a62;
  --text-5: #5b7a72;
  --text-6: #6b8a82;
  --text-7: #7d9a92;
  --text-8: #93aaa3;

  /* ---- Borders ---- */
  --line-soft: rgba(9, 46, 34, 0.1);
  --line: rgba(9, 46, 34, 0.14);
  --line-2: rgba(9, 46, 34, 0.18);
  --line-green-soft: rgba(15, 169, 104, 0.2);
  --line-green: rgba(15, 169, 104, 0.24);
  --line-green-2: rgba(15, 169, 104, 0.28);
  --line-green-3: rgba(15, 169, 104, 0.36);
  --line-green-4: rgba(15, 169, 104, 0.44);
  --line-green-5: rgba(15, 169, 104, 0.6);

  /* ---- On-accent (text over solid green fills) ---- */
  --on-accent: #ffffff;
  --hi-glass: rgba(255, 255, 255, 0.9);

  /* ---- Blur / glass ---- */
  --blur-nav: 24px;
  --blur-card: 24px;
  --blur-panel: 32px;
  --blur-btn: 20px;
  --blur-float: 26px;

  /* ---- Radii ---- */
  --r-sm: 8px;
  --r-md: 11px;
  --r-lg: 14px;
  --r-xl: 18px;
  --r-2xl: 20px;
  --r-3xl: 24px;
  --r-4xl: 26px;
  --r-5xl: 32px;
  --r-pill: 999px;

  /* ---- Spacing scale ---- */
  --sp-1: 4px;
  --sp-2: 6px;
  --sp-3: 8px;
  --sp-4: 12px;
  --sp-5: 14px;
  --sp-6: 16px;
  --sp-7: 20px;
  --sp-8: 24px;
  --sp-9: 28px;
  --sp-10: 32px;
  --sp-11: 40px;
  --sp-12: 48px;
  --sp-13: 56px;
  --sp-14: 64px;
  --sp-15: 72px;
  --sp-16: 80px;
  --sp-17: 96px;

  /* ---- Layout ---- */
  --shell: 1600px;
  --pad: 64px;

  /* ---- Elevation (soft, light-theme) ---- */
  --sh-card: 0 14px 40px rgba(9, 46, 34, 0.09);
  --sh-panel: 0 26px 60px rgba(9, 46, 34, 0.13);
  --sh-float: 0 16px 38px rgba(9, 46, 34, 0.14);
  --sh-glow: 0 10px 26px rgba(15, 169, 104, 0.26);
  --sh-glow-strong: 0 12px 32px rgba(15, 169, 104, 0.32);

  /* ---- Motion ---- */
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --dur: 260ms;

  /* ---- Fonts ---- */
  --font-sans: "Inter", "Noto Sans SC", -apple-system, BlinkMacSystemFont,
    "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-cn: "Noto Sans SC", "Inter", -apple-system, BlinkMacSystemFont,
    "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-num: "Inter", "Noto Sans SC", -apple-system, sans-serif;
}

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

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

body {
  margin: 0;
  font-family: var(--font-cn);
  font-size: 17px;
  line-height: 1.6;
  color: var(--text-2);
  background-color: var(--bg-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1,
h2,
h3,
h4,
p,
figure,
blockquote {
  margin: 0;
}

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

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

::selection {
  background: var(--green-a30);
  color: var(--text-hi);
}

:focus-visible {
  outline: 2px solid var(--green-400);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: #e9eaec;
}
::-webkit-scrollbar-thumb {
  background: rgba(15, 169, 104, 0.35);
  border-radius: 999px;
  border: 2px solid #e9eaec;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(15, 169, 104, 0.55);
}

/* ==========================================================================
   Ambient background — glow orbs + grid + grain
   ========================================================================== */
.ambient {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

/* 背景已改为纯浅灰：以下三层（渐变层 / 光晕球 / 网格）全部停用 */
.ambient__gradient {
  display: none;
  position: absolute;
  inset: 0;
  background:
    radial-gradient(
      120% 80% at 30% 0%,
      rgba(120, 226, 176, 0.5) 0%,
      rgba(214, 242, 228, 0.5) 45%,
      rgba(240, 245, 242, 0) 100%
    ),
    linear-gradient(180deg, #f3faf6 0%, #eef5f1 45%, #f0f5f2 100%);
}

.orb {
  display: none;
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  will-change: transform;
}

.orb--green {
  width: 900px;
  height: 900px;
  top: -320px;
  left: -260px;
  background: radial-gradient(
    circle at 50% 50%,
    rgba(88, 219, 158, 0.55) 0%,
    rgba(88, 219, 158, 0) 68%
  );
  animation: drift-a 22s var(--ease) infinite alternate;
}

.orb--teal {
  width: 780px;
  height: 780px;
  top: 240px;
  left: 860px;
  background: radial-gradient(
    circle at 50% 50%,
    rgba(70, 212, 199, 0.42) 0%,
    rgba(70, 212, 199, 0) 68%
  );
  animation: drift-b 26s var(--ease) infinite alternate;
}

.orb--lime {
  width: 640px;
  height: 640px;
  top: 1180px;
  left: 420px;
  background: radial-gradient(
    circle at 50% 50%,
    rgba(176, 224, 116, 0.4) 0%,
    rgba(176, 224, 116, 0) 68%
  );
  filter: blur(50px);
  animation: drift-a 30s var(--ease) infinite alternate-reverse;
}

.orb--deep {
  width: 1100px;
  height: 1100px;
  top: 2800px;
  left: 200px;
  background: radial-gradient(
    circle at 50% 50%,
    rgba(94, 205, 154, 0.4) 0%,
    rgba(94, 205, 154, 0) 68%
  );
  filter: blur(70px);
  animation: drift-b 34s var(--ease) infinite alternate;
}

.orb--green-mid {
  width: 820px;
  height: 820px;
  top: 4600px;
  right: -240px;
  background: radial-gradient(
    circle at 50% 50%,
    rgba(88, 219, 158, 0.4) 0%,
    rgba(88, 219, 158, 0) 68%
  );
  animation: drift-a 28s var(--ease) infinite alternate;
}

.orb--lime-low {
  width: 700px;
  height: 700px;
  top: 6200px;
  left: -180px;
  background: radial-gradient(
    circle at 50% 50%,
    rgba(176, 224, 116, 0.34) 0%,
    rgba(176, 224, 116, 0) 68%
  );
  animation: drift-b 32s var(--ease) infinite alternate-reverse;
}

@keyframes drift-a {
  from {
    transform: translate3d(0, 0, 0) scale(1);
  }
  to {
    transform: translate3d(60px, 40px, 0) scale(1.08);
  }
}

@keyframes drift-b {
  from {
    transform: translate3d(0, 0, 0) scale(1.05);
  }
  to {
    transform: translate3d(-70px, 50px, 0) scale(1);
  }
}

/* Fine grid texture */
.ambient__grid {
  display: none;
  position: absolute;
  inset: 0;
  background-image: linear-gradient(
      to right,
      rgba(15, 169, 104, 0.09) 1px,
      transparent 1px
    ),
    linear-gradient(to bottom, rgba(15, 169, 104, 0.09) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(
    100% 60% at 50% 0%,
    rgba(0, 0, 0, 0.55) 0%,
    transparent 75%
  );
  -webkit-mask-image: radial-gradient(
    100% 60% at 50% 0%,
    rgba(0, 0, 0, 0.55) 0%,
    transparent 75%
  );
}

/* Film grain — soft-light reads on light surfaces (overlay darkens them) */
.ambient__grain {
  position: absolute;
  inset: 0;
  opacity: 0.2;
  mix-blend-mode: soft-light;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
}

/* ==========================================================================
   Shell / layout primitives
   ========================================================================== */
.shell {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.section {
  padding: 0 var(--pad);
}

.section--pad {
  padding-top: var(--sp-16);
  padding-bottom: var(--sp-16);
}

.stack {
  display: flex;
  flex-direction: column;
}

.row {
  display: flex;
  flex-direction: row;
  align-items: center;
}

/* ==========================================================================
   Glass surface
   ========================================================================== */
.glass {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--line-green);
  backdrop-filter: blur(var(--blur-card));
  -webkit-backdrop-filter: blur(var(--blur-card));
  box-shadow: var(--sh-card), inset 0 1px 0 var(--hi-glass);
}

/* ==========================================================================
   Navigation
   ========================================================================== */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-8);
  padding: 22px var(--pad);
  background: var(--bg-nav);
  border-bottom: 1px solid var(--line-green);
  border-radius: 0 0 22px 22px;
  backdrop-filter: blur(var(--blur-nav)) saturate(150%);
  -webkit-backdrop-filter: blur(var(--blur-nav)) saturate(150%);
  box-shadow: 0 8px 32px rgba(9, 46, 34, 0.08);
  transition: background var(--dur) var(--ease);
}

.nav.is-scrolled {
  background: rgba(255, 255, 255, 0.86);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  flex-shrink: 0;
}

.brand__mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
}

.brand__mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.brand__text {
  font-family: var(--font-sans);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.4px;
  color: var(--text-hi);
}

.brand__text em {
  font-style: normal;
  font-weight: 500;
  color: var(--green-500);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav__link {
  position: relative;
  font-size: 17px;
  color: var(--text-2);
  transition: color var(--dur) var(--ease);
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: -6px;
  height: 1px;
  background: var(--green-500);
  box-shadow: 0 1px 6px rgba(15, 169, 104, 0.6);
  transition: right var(--dur) var(--ease);
}

.nav__link:hover {
  color: var(--green-500);
}

.nav__link:hover::after {
  right: 0;
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--sp-7);
  flex-shrink: 0;
}

.nav__login {
  font-size: 17px;
  font-weight: 500;
  color: var(--text-4);
  transition: color var(--dur) var(--ease);
}

.nav__login:hover {
  color: var(--green-500);
}

.nav__toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: var(--r-md);
  border: 1px solid var(--line-2);
  background: var(--bg-chip);
  align-items: center;
  justify-content: center;
}

.nav__toggle svg {
  width: 20px;
  height: 20px;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-cn);
  font-size: 17px;
  white-space: nowrap;
  border-radius: var(--r-lg);
  padding: 16px 30px;
  transition: transform var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease), background var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}

.btn--primary {
  font-weight: 500;
  color: var(--on-accent);
  background: linear-gradient(150deg, #13bd77, #0d9459);
  border: 1px solid var(--green-a75);
  backdrop-filter: blur(var(--blur-btn));
  -webkit-backdrop-filter: blur(var(--blur-btn));
  box-shadow: var(--sh-glow), inset 0 1px 0 rgba(255, 255, 255, 0.4);
}

.btn--primary:hover {
  transform: translateY(-2px);
  background: linear-gradient(150deg, #17cf83, #10a563);
  box-shadow: 0 16px 36px rgba(15, 169, 104, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.btn--ghost {
  color: var(--text-2);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line-2);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: 0 4px 14px rgba(9, 46, 34, 0.06);
}

.btn--ghost:hover {
  transform: translateY(-2px);
  color: var(--green-500);
  border-color: var(--green-a45);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 10px 26px rgba(15, 169, 104, 0.16);
}

.btn--pill {
  border-radius: var(--r-pill);
  padding: 17px 34px;
}

.btn--sm {
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--r-pill);
  padding: 10px 22px;
  color: var(--on-accent);
  background: linear-gradient(150deg, #13bd77, #0d9459);
  border: 1px solid var(--green-a55);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 6px 18px rgba(15, 169, 104, 0.24),
    inset 0 1px 0 rgba(255, 255, 255, 0.35);
}

.btn--sm:hover {
  background: linear-gradient(150deg, #17cf83, #10a563);
  box-shadow: 0 10px 26px rgba(15, 169, 104, 0.32),
    inset 0 1px 0 rgba(255, 255, 255, 0.45);
}

.btn__icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  display: flex;
  align-items: center;
  gap: var(--sp-14);
  padding: var(--sp-17) var(--pad) 108px;
}

.hero__copy {
  flex: 1 1 0;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 26px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  align-self: flex-start;
  padding: 7px 16px;
  border-radius: var(--r-pill);
  font-size: 14px;
  color: var(--green-200);
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--line-green-3);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 4px 14px rgba(9, 46, 34, 0.06);
}

.badge__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green-500);
  box-shadow: 0 0 8px rgba(15, 169, 104, 0.8);
  animation: pulse 2.4s var(--ease) infinite;
}

@keyframes pulse {
  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(15, 169, 104, 0.6);
  }
  50% {
    box-shadow: 0 0 0 6px rgba(15, 169, 104, 0);
  }
}

.hero__title {
  font-family: var(--font-cn);
  font-size: clamp(42px, 4.6vw, 66px);
  font-weight: 700;
  line-height: 1.27;
  letter-spacing: -1.2px;
  color: var(--text-hi);
}

.hero__title .accent {
  background: linear-gradient(
    100deg,
    var(--green-500) 0%,
    var(--green-teal) 55%,
    var(--green-lime) 100%
  );
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero__sub {
  max-width: 560px;
  font-size: 18px;
  line-height: 1.76;
  color: var(--text-4);
}

.hero__ctas {
  display: flex;
  align-items: center;
  gap: var(--sp-5);
  flex-wrap: wrap;
}

.hero__trust {
  font-size: 14px;
  color: var(--text-6);
}

/* ---- Hero visual panel ---- */
.hero__visual {
  position: relative;
  flex: 1 1 0;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.panel {
  padding: 22px;
  border-radius: var(--r-3xl);
  background: var(--bg-card-strong);
  border: 1px solid var(--line-green-3);
  backdrop-filter: blur(var(--blur-panel));
  -webkit-backdrop-filter: blur(var(--blur-panel));
  box-shadow: var(--sh-panel), inset 0 1px 0 var(--hi-glass);
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.panel__title {
  font-size: 17px;
  font-weight: 500;
  color: var(--text-1);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 4px 11px;
  border-radius: var(--r-pill);
  font-size: 11px;
  font-weight: 500;
  color: var(--green-200);
  background: var(--green-a12);
  border: 1px solid var(--line-green-4);
}

.tag__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green-500);
  box-shadow: 0 0 6px rgba(15, 169, 104, 0.8);
}

.metric__row {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
}

.metric__value {
  font-family: var(--font-num);
  font-size: 48px;
  font-weight: 700;
  line-height: 1.14;
  letter-spacing: -1px;
  color: var(--text-hi);
}

.metric__unit {
  font-family: var(--font-num);
  font-size: 20px;
  font-weight: 500;
  color: var(--green-500);
}

.metric__label {
  margin-top: 6px;
  font-size: 14px;
  color: var(--text-5);
}

.spark {
  height: 96px;
  border-radius: var(--r-lg);
  overflow: hidden;
}

.spark svg {
  width: 100%;
  height: 100%;
}

.panel__stats {
  display: flex;
  gap: var(--sp-4);
}

.stat-mini {
  flex: 1 1 0;
  padding: 14px 16px;
  border-radius: var(--r-lg);
  background: var(--bg-chip);
  border: 1px solid var(--line);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: border-color 500ms var(--ease), background 500ms var(--ease),
    box-shadow 500ms var(--ease), transform 500ms var(--ease);
}

/* Cycle highlight — 1.5s rotation driven by [data-cycle] */
.panel__stats.is-cycling .stat-mini.is-active {
  background: linear-gradient(
    150deg,
    rgba(15, 169, 104, 0.16) 0%,
    rgba(11, 156, 142, 0.08) 100%
  );
  border-color: var(--green-a55);
  box-shadow: 0 10px 26px rgba(15, 169, 104, 0.18),
    inset 0 1px 0 rgba(255, 255, 255, 0.8);
  transform: translateY(-2px);
}

.panel__stats.is-cycling .stat-mini.is-active .stat-mini__label {
  color: var(--text-3);
}

.panel__stats.is-cycling .stat-mini.is-active .stat-mini__value {
  color: var(--green-200);
}

.stat-mini__value {
  font-family: var(--font-num);
  font-size: 20px;
  font-weight: 600;
  color: var(--text-1);
}

.stat-mini__value--accent {
  color: var(--green-200);
}

.stat-mini__label {
  margin-top: 5px;
  font-size: 12px;
  color: var(--text-5);
}

.float-card {
  position: absolute;
  left: -36px;
  bottom: -28px;
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  padding: 13px 18px;
  border-radius: var(--r-xl);
  background: var(--bg-float);
  border: 1px solid var(--line-green-4);
  backdrop-filter: blur(var(--blur-float));
  -webkit-backdrop-filter: blur(var(--blur-float));
  box-shadow: var(--sh-float), inset 0 1px 0 var(--hi-glass);
  animation: bob 6s var(--ease) infinite alternate;
}

@keyframes bob {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(-10px);
  }
}

.float-card__icon {
  width: 30px;
  height: 30px;
  flex-shrink: 0;
}

.float-card__title {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-hi);
}

.float-card__label {
  margin-top: 3px;
  font-size: 12px;
  color: var(--text-5);
}

/* ==========================================================================
   Trust strip
   ========================================================================== */
.trust {
  padding: var(--sp-10) var(--pad);
  display: flex;
  flex-direction: column;
  gap: var(--sp-8);
}

.trust__label {
  font-size: 14px;
  letter-spacing: 1.6px;
  color: var(--text-6);
}

.trust__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-13);
  flex-wrap: wrap;
}

.partner {
  display: flex;
  align-items: center;
  gap: 9px;
  opacity: 0.72;
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.partner:hover {
  opacity: 1;
  transform: translateY(-2px);
}

.partner svg {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

.partner__name {
  font-size: 18px;
  font-weight: 500;
  color: var(--text-4);
}

/* ==========================================================================
   Section headings
   ========================================================================== */
.head {
  display: flex;
  flex-direction: column;
  gap: var(--sp-5);
}

.head--center {
  align-items: center;
  text-align: center;
}

.eyebrow {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 2.4px;
  color: var(--green-500);
}

.head__title {
  font-size: clamp(30px, 3.2vw, 46px);
  font-weight: 700;
  line-height: 1.33;
  letter-spacing: -0.8px;
  color: var(--text-hi);
}

.head__sub {
  max-width: 620px;
  font-size: 17px;
  line-height: 1.75;
  color: var(--text-4);
}

/* ==========================================================================
   Core features
   ========================================================================== */
.features {
  padding: var(--sp-16) var(--pad);
  display: flex;
  flex-direction: column;
  gap: var(--sp-13);
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.feature {
  display: flex;
  align-items: center;
  gap: 34px;
  padding: var(--sp-9);
  border-radius: var(--r-3xl);
  background: var(--bg-card);
  border: 1px solid var(--line-green-2);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  box-shadow: var(--sh-card), inset 0 1px 0 var(--hi-glass);
  transition: transform var(--dur) var(--ease),
    border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.feature:hover {
  transform: translateY(-4px);
  border-color: var(--line-green-4);
  box-shadow: 0 24px 56px rgba(9, 46, 34, 0.14),
    0 0 0 1px rgba(15, 169, 104, 0.12), inset 0 1px 0 var(--hi-glass);
}

.feature__copy {
  flex: 1 1 0;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}

.feature__tag {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 1.4px;
  color: var(--green-500);
}

.feature__title {
  font-size: 28px;
  font-weight: 500;
  line-height: 1.38;
  color: var(--text-hi);
}

.feature__desc {
  font-size: 17px;
  line-height: 1.73;
  color: var(--text-4);
}

.feature__meta {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 2px;
}

.chip {
  padding: 6px 13px;
  border-radius: var(--r-pill);
  font-size: 12px;
  color: var(--text-3);
  background: var(--bg-chip);
  border: 1px solid var(--line-2);
}

.chip--accent {
  color: var(--on-accent);
  background: linear-gradient(150deg, #13bd77, #0d9459);
  border-color: var(--green-a55);
}

.feature__visual {
  position: relative;
  width: 320px;
  flex-shrink: 0;
  aspect-ratio: 320 / 216;
  border-radius: var(--r-xl);
  overflow: hidden;
  border: 1px solid var(--line-green-2);
  background: var(--bg-media);
}

.feature__visual svg {
  width: 100%;
  height: auto;
}

/* ==========================================================================
   Capability grid
   ========================================================================== */
.capabilities {
  padding: var(--sp-15) var(--pad);
  display: flex;
  flex-direction: column;
  gap: 44px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-7);
}

.cap-card {
  display: flex;
  flex-direction: column;
  gap: var(--sp-5);
  padding: 26px;
  border-radius: var(--r-2xl);
  background: var(--bg-card);
  border: 1px solid var(--line-green);
  backdrop-filter: blur(var(--blur-card));
  -webkit-backdrop-filter: blur(var(--blur-card));
  box-shadow: var(--sh-card), inset 0 1px 0 var(--hi-glass);
  transition: transform var(--dur) var(--ease),
    border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.cap-card:hover {
  transform: translateY(-4px);
  border-color: var(--line-green-4);
  box-shadow: 0 22px 44px rgba(9, 46, 34, 0.14),
    inset 0 1px 0 var(--hi-glass);
}

.cap-card__icon {
  width: 30px;
  height: 30px;
  filter: drop-shadow(0 4px 10px rgba(15, 169, 104, 0.3));
}

.cap-card__title {
  font-size: 20px;
  font-weight: 500;
  color: var(--text-hi);
}

.cap-card__desc {
  font-size: 15px;
  line-height: 1.72;
  color: var(--text-4);
}

/* ==========================================================================
   Social proof
   ========================================================================== */
.proof {
  padding: var(--sp-15) var(--pad);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-8);
}

.stat-card {
  padding: 30px;
  border-radius: var(--r-2xl);
  background: var(--bg-card);
  border: 1px solid var(--line-green);
  backdrop-filter: blur(var(--blur-card));
  -webkit-backdrop-filter: blur(var(--blur-card));
  box-shadow: var(--sh-card), inset 0 1px 0 var(--hi-glass);
}

.stat-card__value {
  font-family: var(--font-num);
  font-size: 44px;
  font-weight: 700;
  letter-spacing: -1px;
  color: var(--green-500);
}

.stat-card__label {
  margin-top: var(--sp-3);
  font-size: 15px;
  color: var(--text-4);
}

/* ==========================================================================
   Testimonial
   ========================================================================== */
.testimonial {
  padding: var(--sp-12) var(--pad);
}

.quote-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--sp-7);
  padding: var(--sp-11);
  border-radius: var(--r-4xl);
  background: var(--bg-card-strong);
  border: 1px solid var(--line-green-3);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  box-shadow: var(--sh-card), inset 0 1px 0 var(--hi-glass);
}

.quote-card__body {
  display: flex;
  flex-direction: column;
  gap: var(--sp-7);
  flex: 1 1 0;
  min-width: 0;
}

.quote-card__text {
  font-size: 22px;
  line-height: 1.73;
  color: var(--text-1);
}

.quote-card__author {
  display: flex;
  align-items: center;
  gap: var(--sp-5);
}

.quote-card__avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  flex-shrink: 0;
}

.quote-card__name {
  font-size: 17px;
  font-weight: 500;
  color: var(--text-hi);
}

.quote-card__role {
  margin-top: 4px;
  font-size: 14px;
  color: var(--text-4);
}

/* ==========================================================================
   Final CTA
   ========================================================================== */
.cta-section {
  padding: var(--sp-11) var(--pad) var(--sp-17);
}

.cta-card {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
  padding: var(--sp-15) var(--sp-16);
  border-radius: var(--r-5xl);
  text-align: center;
  background: linear-gradient(
      155deg,
      rgba(15, 169, 104, 0.14) 0%,
      rgba(11, 156, 142, 0.07) 55%,
      rgba(255, 255, 255, 0.6) 100%
    ),
    var(--bg-card-strong);
  border: 1px solid var(--line-green-3);
  backdrop-filter: blur(40px);
  -webkit-backdrop-filter: blur(40px);
  box-shadow: 0 24px 70px rgba(15, 169, 104, 0.16),
    inset 0 1px 0 var(--hi-glass);
}

.cta-card::before {
  content: "";
  position: absolute;
  width: 720px;
  height: 720px;
  top: -420px;
  left: 50%;
  transform: translateX(-50%);
  border-radius: 50%;
  background: radial-gradient(
    circle at 50% 50%,
    rgba(15, 169, 104, 0.22) 0%,
    rgba(15, 169, 104, 0) 70%
  );
  pointer-events: none;
}

.cta-card > * {
  position: relative;
}

.cta-card__title {
  font-size: clamp(30px, 3.4vw, 48px);
  font-weight: 700;
  line-height: 1.32;
  letter-spacing: -0.8px;
  color: var(--text-hi);
}

.cta-card__sub {
  font-size: 17px;
  color: var(--text-3);
}

.cta-card__buttons {
  display: flex;
  align-items: center;
  gap: var(--sp-5);
  margin-top: var(--sp-3);
  flex-wrap: wrap;
  justify-content: center;
}

.cta-card__mail {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.6px;
  color: var(--text-5);
  transition: color var(--dur) var(--ease);
}

.cta-card__mail:hover {
  color: var(--green-500);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  padding: var(--sp-13) var(--pad) var(--sp-10);
  display: flex;
  flex-direction: column;
  gap: var(--sp-12);
  border-top: 1px solid var(--line-soft);
  background: #ebedf0;
}

.footer__top {
  display: grid;
  grid-template-columns: 380px repeat(4, 1fr);
  gap: var(--sp-16);
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

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

.footer__logo img {
  width: 34px;
  height: 34px;
  object-fit: contain;
}

.footer__logo-text {
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 700;
  color: var(--text-hi);
}

.footer__tagline {
  font-size: 15px;
  line-height: 1.71;
  color: var(--text-4);
}

.footer__badges {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: var(--sp-2);
}

.footer__badge {
  padding: 5px 12px;
  border-radius: var(--r-sm);
  font-size: 11px;
  color: var(--text-4);
  background: var(--bg-chip);
  border: 1px solid var(--line-2);
}

.footer__col {
  display: flex;
  flex-direction: column;
  gap: var(--sp-6);
}

.footer__col-title {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-1);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--sp-6);
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer__link {
  font-size: 14px;
  color: var(--text-4);
  transition: color var(--dur) var(--ease), transform var(--dur) var(--ease);
  display: inline-block;
}

.footer__link:hover {
  color: var(--green-500);
  transform: translateX(3px);
}

.footer__divider {
  height: 1px;
  background: var(--line-soft);
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-8);
  flex-wrap: wrap;
}

.footer__copy {
  font-size: 12px;
  color: var(--text-5);
}

.footer__meta {
  font-size: 12px;
  color: var(--text-6);
}

/* ==========================================================================
   Hero panel media (real photo inside glass panel)
   ========================================================================== */
/* ==========================================================================
   Hero panel media — full-bleed carousel
   ========================================================================== */
.panel__media {
  position: relative;
  aspect-ratio: 4 / 3;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--bg-media);
}

/* Generic crossfade carousel — soft fade + gentle scale settle */
.carousel img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: 0;
  transform: scale(1.04);
  transition: opacity 1100ms var(--ease), transform 1300ms var(--ease);
}

.carousel img.is-active {
  opacity: 1;
  transform: scale(1);
}

/* ==========================================================================
   Clients strip — single-row marquee, seamless loop
   ========================================================================== */
.clients__marquee {
  overflow: hidden;
  -webkit-mask-image: linear-gradient(
    90deg,
    transparent 0%,
    #000 7%,
    #000 93%,
    transparent 100%
  );
  mask-image: linear-gradient(
    90deg,
    transparent 0%,
    #000 7%,
    #000 93%,
    transparent 100%
  );
}

.clients__track {
  display: flex;
  width: max-content;
  animation: clients-marquee 42s linear infinite;
  will-change: transform;
}

/* Pause on hover so visitors can look at a logo */
.clients__marquee:hover .clients__track {
  animation-play-state: paused;
}

@keyframes clients-marquee {
  to {
    transform: translateX(-50%);
  }
}

.clients__group {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-right: 16px; /* keeps spacing even across the loop seam */
}

.client-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  border-radius: var(--r-lg);
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--line);
  box-shadow: 0 6px 18px rgba(9, 46, 34, 0.08);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.client-chip:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 30px rgba(9, 46, 34, 0.14),
    0 0 0 1px var(--green-a45);
}

.client-chip img {
  max-height: 46px;
  max-width: 148px;
  object-fit: contain;
}

/* ==========================================================================
   Products grid
   ========================================================================== */
.products {
  padding: var(--sp-15) var(--pad);
  display: flex;
  flex-direction: column;
  gap: 44px;
}

.products__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-7);
}

.product-card {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
  padding: 18px 18px 22px;
  border-radius: var(--r-2xl);
  background: var(--bg-card);
  border: 1px solid var(--line-green);
  backdrop-filter: blur(var(--blur-card));
  -webkit-backdrop-filter: blur(var(--blur-card));
  box-shadow: var(--sh-card), inset 0 1px 0 var(--hi-glass);
  transition: transform var(--dur) var(--ease),
    border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.product-card:hover {
  transform: translateY(-4px);
  border-color: var(--line-green-4);
  box-shadow: 0 22px 44px rgba(9, 46, 34, 0.14),
    inset 0 1px 0 var(--hi-glass);
}

/* White media plate — render images are transparent/white background */
.product-card__media {
  aspect-ratio: 1 / 1;
  border-radius: var(--r-xl);
  overflow: hidden;
  display: grid;
  place-items: center;
  background: var(--bg-media);
  border: 1px solid var(--line);
}

.product-card__media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 16px;
  transition: transform 420ms var(--ease);
}

.product-card:hover .product-card__media img {
  transform: scale(1.05);
}

.product-card__title {
  margin-top: var(--sp-2);
  font-size: 19px;
  font-weight: 500;
  color: var(--text-hi);
}

.product-card__desc {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--text-4);
}

/* ==========================================================================
   About — 一站式采购服务
   ========================================================================== */
.about {
  padding: var(--sp-15) var(--pad);
}

.about__grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: var(--sp-13);
  align-items: center;
}

.about__copy {
  display: flex;
  flex-direction: column;
  gap: var(--sp-5);
}

.about__desc {
  max-width: 560px;
  font-size: 17px;
  line-height: 1.78;
  color: var(--text-4);
}

.about__frame {
  border-radius: var(--r-3xl);
  overflow: hidden;
  border: 1px solid var(--line-green-3);
  background: var(--bg-raise);
  box-shadow: var(--sh-panel), inset 0 1px 0 var(--hi-glass);
  aspect-ratio: 3 / 2;
}

.about__frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

/* Service flow: 销售 → 选型 → 设计 → 智造 → 指导安装调试 */
.flow {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: var(--sp-3);
}

.flow__step {
  padding: 8px 16px;
  border-radius: var(--r-pill);
  font-size: 14px;
  font-weight: 500;
  color: var(--green-300);
  background: var(--green-a12);
  border: 1px solid var(--green-a30);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.flow__arrow {
  width: 18px;
  height: 10px;
  flex-shrink: 0;
  opacity: 0.8;
}

/* ==========================================================================
   Systems grid — 成套系统与设备（黑底渲染图）
   ========================================================================== */
.systems {
  padding: var(--sp-15) var(--pad);
  display: flex;
  flex-direction: column;
  gap: 44px;
}

.systems__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-7);
}

.system-card {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
  padding: 18px 18px 22px;
  border-radius: var(--r-2xl);
  background: var(--bg-card);
  border: 1px solid var(--line-green);
  backdrop-filter: blur(var(--blur-card));
  -webkit-backdrop-filter: blur(var(--blur-card));
  box-shadow: var(--sh-card), inset 0 1px 0 var(--hi-glass);
  transition: transform var(--dur) var(--ease),
    border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.system-card:hover {
  transform: translateY(-4px);
  border-color: var(--line-green-4);
  box-shadow: 0 22px 44px rgba(9, 46, 34, 0.14),
    inset 0 1px 0 var(--hi-glass);
}

.system-card__media {
  aspect-ratio: 4 / 5;
  border-radius: var(--r-xl);
  overflow: hidden;
  display: grid;
  place-items: center;
  background: var(--bg-media);
  border: 1px solid var(--line);
}

.system-card__media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 12px;
  transition: transform 420ms var(--ease);
}

.system-card:hover .system-card__media img {
  transform: scale(1.04);
}

.system-card__title {
  margin-top: var(--sp-2);
  font-size: 19px;
  font-weight: 500;
  color: var(--text-hi);
}

.system-card__desc {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--text-4);
}

/* ==========================================================================
   Brands grid — 四大品牌
   ========================================================================== */
.brands {
  padding: var(--sp-15) var(--pad);
  display: flex;
  flex-direction: column;
  gap: 44px;
}

.brands__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-7);
}

.brand-card {
  display: flex;
  flex-direction: column;
  padding: 24px;
  border-radius: var(--r-2xl);
  background: var(--bg-card);
  border: 1px solid var(--line-green);
  backdrop-filter: blur(var(--blur-card));
  -webkit-backdrop-filter: blur(var(--blur-card));
  box-shadow: var(--sh-card), inset 0 1px 0 var(--hi-glass);
  transition: transform var(--dur) var(--ease),
    border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.brand-card:hover {
  transform: translateY(-4px);
  border-color: var(--line-green-4);
  box-shadow: 0 22px 44px rgba(9, 46, 34, 0.14),
    inset 0 1px 0 var(--hi-glass);
}

.brand-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  flex-wrap: wrap;
}

.brand-card__name {
  font-size: 21px;
  font-weight: 600;
  color: var(--text-hi);
}

.brand-card__tag {
  padding: 4px 12px;
  border-radius: var(--r-pill);
  font-size: 12px;
  color: var(--green-200);
  background: var(--green-a12);
  border: 1px solid var(--line-green-4);
  white-space: nowrap;
}

.brand-card__media {
  position: relative;
  display: flex;
  gap: var(--sp-4);
  height: 190px;
  margin-top: var(--sp-5);
  border-radius: var(--r-xl);
  overflow: hidden;
}

.brand-card--light .brand-card__media,
.brand-card--dark .brand-card__media {
  background: var(--bg-media);
  border: 1px solid var(--line);
}

.brand-card__media img {
  flex: 1 1 0;
  min-width: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 12px;
  /* transition inherits from .carousel img (soft fade + scale settle) */
}

.brand-card__series {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: var(--sp-5);
}

/* Cycle highlight — 1.5s rotation driven by [data-cycle] */
.brand-card__series.is-cycling > * {
  transition: background 480ms var(--ease), border-color 480ms var(--ease),
    color 480ms var(--ease), box-shadow 480ms var(--ease);
}

.brand-card__series.is-cycling > *.is-active {
  background: linear-gradient(150deg, #13bd77, #0d9459);
  border-color: var(--green-a55);
  color: var(--on-accent);
  box-shadow: 0 6px 16px rgba(15, 169, 104, 0.26);
}

/* CTA contact block — enlarged email / phone */
.cta-card__contacts {
  display: flex;
  align-items: stretch;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--sp-5);
  margin-top: var(--sp-3);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  padding: 16px 26px;
  border-radius: var(--r-xl);
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid var(--line-green-3);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: 0 6px 20px rgba(9, 46, 34, 0.07);
  text-align: left;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease),
    background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.contact-item:hover {
  transform: translateY(-3px);
  background: #ffffff;
  border-color: var(--green-a55);
  box-shadow: 0 16px 36px rgba(15, 169, 104, 0.18);
}

.contact-item__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: 42px;
  height: 42px;
  border-radius: var(--r-md);
  background: var(--green-a12);
  border: 1px solid var(--line-green-4);
  color: var(--green-200);
}

.contact-item__icon svg {
  width: 20px;
  height: 20px;
}

.contact-item__body {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.contact-item__label {
  font-size: 12px;
  letter-spacing: 0.8px;
  color: var(--text-5);
}

.contact-item__value {
  font-family: var(--font-num);
  font-size: clamp(17px, 1.5vw, 21px);
  font-weight: 600;
  letter-spacing: 0.2px;
  color: var(--text-hi);
  white-space: nowrap;
  transition: color var(--dur) var(--ease);
}

.contact-item:hover .contact-item__value {
  color: var(--green-200);
}

.cta-card__addr {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 15px;
  letter-spacing: 0.4px;
  color: var(--text-3);
}

.cta-card__addr svg {
  width: 16px;
  height: 16px;
  color: var(--green-500);
  flex: 0 0 auto;
}

/* CTA contact row */
.cta-card__contact {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  flex-wrap: wrap;
  justify-content: center;
}

.cta-card__sep {
  color: var(--text-5);
}

.footer__beian {
  color: var(--text-5);
  transition: color var(--dur) var(--ease);
}

.footer__beian:hover {
  color: var(--green-500);
}

/* ==========================================================================
   Reveal on scroll
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms var(--ease), transform 700ms var(--ease);
}

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
  html {
    scroll-behavior: auto;
  }
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1180px) {
  :root {
    --pad: 40px;
  }
  .hero {
    gap: var(--sp-11);
  }
  .feature {
    gap: var(--sp-9);
  }
  .footer__top {
    grid-template-columns: 1fr 1fr 1fr;
    gap: var(--sp-12);
  }
  .footer__brand {
    grid-column: 1 / -1;
    max-width: 460px;
  }
}

@media (max-width: 980px) {
  :root {
    --pad: 28px;
  }

  .nav {
    padding: 16px var(--pad);
  }

  .nav__links,
  .nav__login {
    display: none;
  }

  .nav__toggle {
    display: inline-flex;
  }

  .nav.is-open .nav__links {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--sp-7);
    padding: var(--sp-8) var(--pad);
    background: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid var(--line-green);
    backdrop-filter: blur(var(--blur-nav));
    -webkit-backdrop-filter: blur(var(--blur-nav));
    box-shadow: 0 18px 40px rgba(9, 46, 34, 0.1);
  }

  .hero {
    flex-direction: column;
    align-items: stretch;
    gap: var(--sp-11);
    padding-top: var(--sp-14);
    padding-bottom: var(--sp-14);
  }

  .hero__visual {
    width: 100%;
  }

  .float-card {
    left: 12px;
    bottom: -24px;
  }

  .trust__row {
    justify-content: flex-start;
    gap: var(--sp-10);
  }

  .feature {
    flex-direction: column;
    align-items: stretch;
    gap: var(--sp-9);
  }

  .feature--reverse .feature__visual {
    order: -1;
  }

  .feature__visual {
    width: 100%;
  }

  .grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .proof {
    grid-template-columns: repeat(2, 1fr);
  }

  .quote-card {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--sp-8);
    padding: var(--sp-9);
  }

  .quote-card__text {
    font-size: 19px;
  }
}

@media (max-width: 640px) {
  :root {
    --pad: 20px;
  }

  .hero__title {
    letter-spacing: -0.6px;
  }

  .hero__ctas .btn {
    flex: 1 1 100%;
  }

  .grid,
  .proof {
    grid-template-columns: 1fr;
  }

  .panel__stats {
    flex-direction: column;
  }

  .metric__value {
    font-size: 44px;
  }

  .float-card {
    position: static;
    margin-top: var(--sp-5);
    animation: none;
  }

  .cta-card {
    padding: var(--sp-12) var(--sp-8);
  }

  .footer__top {
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-11);
  }

  .footer__bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--sp-4);
  }
}

/* ==========================================================================
   Responsive — new sections (clients / products / about)
   ========================================================================== */
@media (max-width: 1180px) {
  .products__grid,
  .systems__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .about__grid {
    grid-template-columns: 1fr;
    gap: var(--sp-10);
  }
  .about__frame {
    max-width: 640px;
  }
}

@media (max-width: 640px) {
  .products__grid,
  .systems__grid {
    grid-template-columns: 1fr;
  }
  .brands__grid {
    grid-template-columns: 1fr;
  }
  .clients__group {
    gap: 12px;
    padding-right: 12px;
  }
  .client-chip {
    padding: 9px 16px;
  }
  .client-chip img {
    max-height: 36px;
    max-width: 112px;
  }
  .about__frame {
    aspect-ratio: 4 / 3;
  }
}